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8086 Interrupt List


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Interrupt List

Interrupt List		Release 45			Last change 3/26/95
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------!---CONTACT_INFO---------------------
If you notice any mistakes or omissions, please let me know!  It is only with
YOUR help that the list can continue to grow at the current rate.  Please send
all changes to me rather than distributing a modified version of the list.

Please read the file INTERRUP.1ST before asking me any questions.  You may find
that they have already been addressed.

	 Ralf Brown

Internet: ralf@telerama.lm.com
UUCP: {uunet,harvard}!telerama.lm.com!ralf
FIDO: Ralf Brown 1:129/26.1
	or post a message to me in the DR_DEBUG echo (I probably won't see it
	unless you address it to me)
CIS:  >INTERNET:ralf@telerama.lm.com

I reply to all e-mail submissions and inquiries, but some of my replies bounce
because of bad return paths.  If you don't get a response from me within a
reasonable period of time, send it again with a better return path (starting at
harvard or ucbvax for UUCP, from the Internet for others).
--------!------------------------------------
See INTERRUP.1ST for the key to system abbreviations and a list of the
trademarks mentioned here.
--------!---DISCLAIMER-----------------------
DISCLAIMER:  THIS MATERIAL IS PROVIDED "AS IS".	 I verify the information
contained in this list to the best of my ability, but I cannot be held
responsible for any problems caused by use or misuse of the information,
especially for those functions not officially documented.  If it is marked
"internal" or undocumented, you should check it carefully to make sure it
works the same way in your version of the software (and please let me know
whether or not it works the same way).	Information marked with "???" is
known to be incomplete or guesswork.
--------!---FLAGS----------------------------
The use of -> instead of = signifies that the indicated register or register
pair contains a pointer to the specified item, rather than the item itself.
One or more letters may follow the interrupt number; they have the following
meanings:  U - undocumented function, u - partially documented function,
P - available only in protected mode, R - available only in real or V86 mode,
C - callout or callback (usually hooked rather than called),
O - obsolete (no longer present in current versions)
--------!---CATEGORIES-----------------------
The ninth column of the divider line preceding an entry usually contains a
classification code (the entry has not been classified if that character is
a dash).  The codes currently in use are:
	A - applications, a - access software (screen readers, etc),
	B - BIOS, b - vendor-specific BIOS extensions,
	C - CPU-generated, c - caches/spoolers,
	D - DOS kernel, d - disk I/O enhancements,
	E - DOS extenders, e - electronic mail, F - FAX,
	f - file manipulation, G - debuggers/debugging tools, g - games,
	H - hardware, h - vendor-specific hardware,
	I - IBM workstation/terminal emulators, i - system info/monitoring
	J - Japanese, j - joke programs,
	K - keyboard enhancers, k - file/disk compression,
	l - shells/command interpreters,
	M - mouse/pointing device, m - memory management,
	N - network, n - non-traditional input devices,
	O - other operating systems,
	P - printer enhancements, p - power management,
	Q - DESQview/TopView and Quarterdeck programs,
	R - remote control/file access, r - runtime support,
	S - serial I/O, s - sound/speech,
	T - DOS-based task switchers/multitaskers, t - TSR libraries
	U - resident utilities, u - emulators,
	V - video, v - virus/antivirus,
	W - MS Windows, X - expansion bus BIOSes,
	y - security, * - reserved (and not otherwise classified)
--------C-00---------------------------------
INT 00 C - CPU-generated - DIVIDE ERROR
Desc:	generated if the divisor of a DIV or IDIV instruction is zero or the
	  quotient overflows the result register; DX and AX will be unchanged.
Notes:	on an 8086/8088, the return address points to the following instruction
	on an 80286+, the return address points to the divide instruction
	an 8086/8088 will generate this interrupt if the result of a division
	  is 80h (byte) or 8000h (word)
SeeAlso: INT 04
--------G-00---------------------------------
INT 00 - Zenith - ROM DEBUGGER
Desc:	invokes the ROM Debugger when at the BIOS level; equivalent to
	  pressing Ctrl-Alt-Ins on booting.
Note:	since DOS revectors INT 00, it is necessary to restore this vector to
	  its original ROM BIOS value in order to invoke the debugger once DOS
	  loads
SeeAlso: INT 03"Columbia"
--------C-01---------------------------------
INT 01 C - CPU-generated - SINGLE STEP
Desc:	generated after each instruction if TF (trap flag) is set; TF is
	  cleared on invoking the single-step interrupt handler
Notes:	interrupts are prioritized such that external interrupts are invoked
	  after the INT 01 pushes CS:IP/FLAGS and clears TF, but before the
	  first instruction of the handler executes
	used by debuggers for single-instruction execution tracing, such as
	  MS-DOS DEBUG's T command
SeeAlso: INT 03
--------C-01---------------------------------
INT 01 C - CPU-generated (80386+) - DEBUGGING EXCEPTIONS
Desc:	generated by the CPU on various occurrences which may be of interest
	  to a debugger program
Note:	events which may trigger the interrupt:
	  Instruction address breakpoint fault - will return to execute inst
	  Data address breakpoint trap - will return to following instruction
	  General detect fault, debug registers in use
	  Task-switch breakpoint trap
	  undocumented 386/486 opcode F1h - will return to following instruc
SeeAlso: INT 03
--------H-02---------------------------------
INT 02 C - external hardware - NON-MASKABLE INTERRUPT
Desc:	generated by the CPU when the input to the NMI pin is asserted
Notes:	return address points to start of interrupted instruction on 80286+
	on the 80286+, further NMIs are disabled until the next IRET
	  instruction, but one additional NMI is remembered by the hardware
	  and will be serviced after the IRET instruction reenables NMIs
	maskable interrupts may interrupt the NMI handler if interrupts are
	  enabled
	although the Intel documentation states that this interrupt is
	  typically used for power-failure procedures, it has many other uses
	  on IBM-compatible machines:
		Memory parity error: all except Jr, CONV, and some machines
				  without memory parity
		Breakout switch on hardware debuggers
		Coprocessor interrupt: all except Jr and CONV
		Keyboard interrupt: Jr, CONV
		I/O channel check: CONV, PS50+
		Disk-controller power-on request: CONV
		System suspend: CONV
		Real-time clock: CONV
		System watch-dog timer, time-out interrupt: PS50+
		DMA timer time-out interrupt: PS50+
		Low battery: HP 95LX
		Module pulled: HP 95LX
--------C-03---------------------------------
INT 03 C - CPU-generated - BREAKPOINT
Desc:	generated by the one-byte breakpoint instruction (opcode CCh)
Notes:	used by debuggers to implement breakpoints, such as MS-DOS DEBUG's G
	  command
	also used by Turbo Pascal versions 1,2,3 when {$U+} specified
	return address points to byte following the breakpoint instruction
SeeAlso: INT 01
--------G-03---------------------------------
INT 03 - Columbia PCs (desktop,VP portables) - ROM DEBUGGER
Desc:	invokes the ROM Debugger if INT 03 has not been revectored; equivalent
	  to pressing Esc on booting.
SeeAlso: INT 00"Zenith",INT 03"Realia"
--------G-03---------------------------------
INT 03 - Realia COBOL - DEBUGGER SUPPORT
Note:	Realia COBOL checks for a signature eight bytes prior to the interrupt
	  handler when it starts up
BUG:	if the offset of the INT 03 vector is less than 8, the compiler and
	  all executables generated by it will crash the system
SeeAlso: INT 03"Columbia"
--------G-03---------------------------------
INT 03 U - Watcom WVIDEO, Watcom WD - OUTPUT DEBUGGING MESSAGE
	STACK:	DWORD	selector
		DWORD	offset of ASCIZ message to display
Notes:	the INT 03h instruction which invokes the debugger must be followed by
	  a JMP SHORT and the signature string "WVIDEO"
	to check whether this interface is available, define a public byte
	  variable named ___WD_Present, which the debugger will set to 01h
	  before running the program
SeeAlso: AX=0910h
--------G-030910-----------------------------
INT 03 - Soft-ICE - BACK DOOR COMMANDS - DISPLAY STRING IN Soft-ICE WINDOW
	AX = 0910h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
	DS:DX -> ASCIZ string to display (max 100 bytes, 0Dh OK)
Program: Soft-ICE is a debugger by Nu-Mega Technologies, Inc.
SeeAlso: INT 03"WVIDEO"
--------G-030911-----------------------------
INT 03 - Soft-ICE - BACK DOOR COMMANDS - EXECUTE Soft-ICE COMMAND
	AX = 0911h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
	DS:DX -> ASCIZ command string (max 100 bytes, 0Dh OK)
--------G-030912-----------------------------
INT 03 - Soft-ICE - BACK DOOR COMMANDS - GET BREAKPOINT INFORMATION
	AX = 0912h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
Return: BH = entry number of last breakpoint set
	BL = type of last breakpoint set (see #0001)
	DH = entry number of last breakpoint to be triggered
	DL = type of last triggered breakpoint (see #0001)
Program: Soft-ICE is a debugger by Nu-Mega Technologies, Inc.
SeeAlso: AX=0913h,AX=0914h

(Table 0001)
Values for Soft-ICE breakpoint type:
 00h	BPM (breakpoint register types)
 01h	I/O
 02h	INTerrupt
 03h	BPX (INT 03h-style breakpoint)
 04h	reserved
 05h	range
--------G-030913-----------------------------
INT 03 - Soft-ICE v2.5x - BACK DOOR COMMANDS - SET Soft-ICE BREAKPOINT
	AX = 0913h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
	DS:DX -> breakpoint structure (see #0002)
Return: AX = status
		 00h successful
		BX = breakpoint number
		 03h breakpoint table full
		 06h memory limit error
		 07h I/O limit error
		 09h range limit error
		 16h duplicate breakpoint
SeeAlso: AX=0912h,AX=0914h

Format of Soft-ICE breakpoint structure:
Offset	Size	Description	(Table 0002)
 00h	BYTE	breakpoint type (see #0003)
 01h	DWORD	breakpoint address 1
		(lower range limit for memory BPs,
		interrupt number for interrupt BPs,
		address of BP for execution BPs,
		I/O address (only word)	for I/O BPs)
 05h	DWORD	breakpoint address 2
		(upper range limit for memory BPs,
		optional value to check for for interrupt BPs,
		overlay number (0 = root) for execution BPs)
 09h	DWORD	breakpoint address 3
 0Dh	BYTE	breakpoint mode 1 (see #0004)
		(for interrupt BPs = register to check
			 00h	 no value checking
			 01h	 check AL
			 02h	 check AH
			 03h	 check AX)
 0Eh	BYTE	breakpoint mode 2 (see #0004)
 0Fh	BYTE	breakpoint size (00h byte, 01h word, 03h dword)
 10h	BYTE	breakpoint pass count before program stop
 11h	BYTE	breakpoint state
Note:	all unused fields should contain zeros

(Table 0003)
Values for Soft-ICE breakpoint type:
 00h	memory location
 01h	memory range
 03h	I/O
 04h	interrupt
 05h	execution break

(Table 0004)
Values for Soft-ICE breakpoint mode:
 01h	read
 02h	write
 04h	execution
--------G-030914-----------------------------
INT 03 - Soft-ICE v2.5x - BACK DOOR COMMANDS - REMOVE Soft-ICE BREAKPOINT
	AX = 0914h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
	BX = breakpoint number (returned by AX=0913h)
Return: BX = ???
Program: Soft-ICE is a debugger by Nu-Mega Technologies, Inc.
SeeAlso: AX=0912h,AX=0913h
--------C-04---------------------------------
INT 04 C - CPU-generated - INTO DETECTED OVERFLOW
Desc:	the INTO instruction will generate this interrupt if OF (Overflow Flag)
	  is set; otherwise, INTO is effectively a NOP
Note:	may be used for convenient overflow testing (to prevent errors from
	  propagating) instead of JO or a JNO/JMP combination
SeeAlso: INT 00
--------B-05---------------------------------
INT 05 - PRINT SCREEN
Desc:	dump the current text screen to the first printer
Notes:	normally invoked by the INT 09 handler when PrtSc key is pressed, but
	  may be invoked directly by applications
	byte at 0050h:0000h contains status used by default handler
	  00h not active
	  01h PrtSc in progress
	  FFh last PrtSc encountered error
	default handler is at F000h:FF54h in IBM PC and 100%-compatible BIOSes
BUG:	some old BIOSes/applications appear to destroy BP on return
SeeAlso: INT 10/AH=12h/BL=20h,INT 5E"TI Professional",INT 80"Phar Lap"
--------C-05---------------------------------
INT 05 C - CPU-generated (80186+) - BOUND RANGE EXCEEDED
Desc:	generated by BOUND instruction when the value to be tested is less than
	  the indicated lower bound or greater than the indicated upper bound.
Note:	returning from this interrupt re-executes the failing BOUND instruction
--------P-05454A-----------------------------
INT 05 U - PSPS v2.01 - EJECT PAGE
	AX = 454Ah ('EJ')
Program: PSPS is shareware PostScript PrintScreen utility by A.N.D.
	  Technologies
Note:	sends a ^D to the current printer
SeeAlso: AX=4E57h,AX=5053h,AX=554Eh
--------P-054E57-----------------------------
INT 05 U - PSPS v2.01 - SET PARAMETERS
	AX = 4E57h ('NW')
	ES:SI -> 11-byte buffer containing new settings
Return: buffer filled
SeeAlso: AX=454Ah,AX=5053h,INT 17/AH=63h
--------P-055053-----------------------------
INT 05 U - PSPS v2.01 - GET PARAMETERS
	AX = 5053h ('PS')
	ES:SI -> 11-byte buffer for settings
Return: buffer filled
SeeAlso: AX=4E57h,AX=554Eh,INT 17/AH=64h
--------P-05554E-----------------------------
INT 05 U - PSPS v2.01 - UNINSTALL
	AX = 554Eh ('UN')
Program: PSPS is shareware PostScript PrintScreen utility by A.N.D.
	  Technologies
SeeAlso: AX=454Ah,AX=4E57h,INT 17/AH=62h
--------C-06---------------------------------
INT 06 C - CPU-generated (80286+) - INVALID OPCODE
Desc:	this interrupt is generated when the CPU attempts to execute an
	  invalid opcode (most protected-mode instructions are considered
	  invalid in real mode) or a BOUND, LDS, LES, or LIDT instruction
	  which specifies a register rather than a memory address
Notes:	return address points to beginning of invalid instruction
	with proper programming, this interrupt may be used to emulate
	  instructions which do not exist; many 386 BIOSes emulate the 80286
	  undocumented LOADALL instruction which was removed from the 80386+
	generated by the 80386+ when the LOCK prefix is used with instructions
	  other than BTS, BTR, BTC, XCHG, XADD (486), CMPXCHG (486), INC, DEC,
	  NOT, NEG, ADD, ADC, SUB, SBB, AND, OR, or XOR, or any instruction
	  not accessing memory.
SeeAlso: INT 0C"CPU",INT 0D"CPU"
--------b-06---------------------------------
INT 06 C - HP 95LX - SLEEP/WAKEUP
Desc:	this interrupt is called just before going into light or deep
	  (shutdown) sleep and just after returning from light or deep sleep
SeeAlso: INT 0B"HP 95LX",INT 15/AX=4DD4h,INT 15/AH=4Eh
--------V-06---------------------------------
INT 06 U - no-name clone - GRAPHICS CHARACTER TABLE (NOT A VECTOR!)
Desc:	points at graphics data for characters 00h-7Fh of the current font
SeeAlso: INT 43"EGA",INT 44"VIDEO"
--------C-07---------------------------------
INT 07 C - CPU-generated (80286+) - PROCESSOR EXTENSION NOT AVAILABLE
Desc:	this interrupt is automatically called if a coprocessor instruction is
	  encountered when no coprocessor is installed
Note:	can be used to emulate a numeric coprocessor in software
SeeAlso: INT 09"MATH UNIT PROTECTION"
--------H-08---------------------------------
INT 08 C - IRQ0 - SYSTEM TIMER
Desc:	generated 18.2 times per second by channel 0 of the 8254 system timer,
	  this interrupt is used to keep the time-of-day clock updated
Notes:	programs which need to be invoked regularly should use INT 1C unless
	  they need to reprogram the timer while still keeping the time-of-day
	  clock running at the proper rate
	default handler is at F000h:FEA5h in IBM PC and 100%-compatible BIOSes
	may be masked by setting bit 0 on I/O port 21h
SeeAlso: INT 1C,INT 4A,INT 50"DESQview",INT 58"DoubleDOS",INT 70,INT 78"GO32"
SeeAlso: INT D8"Screen Thief"
--------C-08---------------------------------
INT 08 C - CPU-generated (80286+) - DOUBLE EXCEPTION DETECTED
Desc:	called when multiple exceptions occur on one instruction, or an
	  exception occurs in an exception handler
Notes:	called in protected mode if an interrupt above the defined limit of
	  the interrupt vector table occurs
	return address points at beginning of instruction with errors or the
	  beginning of the instruction which was about to execute when the
	  external interrupt caused the exception
	if an exception occurs in the double fault handler, the CPU goes into
	  SHUTDOWN mode (which circuitry in the PC/AT converts to a reset);
	  this "triple fault" is a faster way of returning to real mode on
	  many 80286 machines than the standard keyboard controller reset
--------H-09---------------------------------
INT 09 C - IRQ1 - KEYBOARD DATA READY
Desc:	this interrupt is generated when data is received from the keyboard.
	  This is normally a scan code (from either a keypress *or* a key
	  release), but may also be an ACK or NAK of a command on AT-class
	  keyboards.
Notes:	this IRQ may be masked by setting bit 1 on I/O port 21h
	if the BIOS supports an enhanced (101/102-key) keyboard, it calls
	  INT 15/AH=4Fh after reading the scan code (see #0005) from the
	  keyboard and before further processing; all further processing uses
	  the scan code returned from INT 15/AH=4Fh
	the default interrupt handler is at F000h:E987h in 100%-compatible
	  BIOSes
	the interrupt handler performs the following actions for certain
	  special keystrokes:
		 Ctrl-Break	 clear keyboard buffer, place word 0000h in buffer,
			 invoke INT 1B, and set flag at 0040h:0071h
		 SysReq	 invoke INT 15/AH=85h (SysReq is often labeled SysRq)
		 Ctrl-Numlock place system in a tight wait loop until next INT 09
		 Ctrl-Alt-Del jump to BIOS startup code (either F000h:FFF0h or the
				destination of the jump at that address)
		 Shift-PrtSc	 invoke INT 05
		 Ctrl-Alt-Plus (HP Vectra) enable keyclick
		 Ctrl-Alt-Plus (many clones) set clock speed to high
		 Ctrl-Alt-Minus (HP Vectra) reduce keyclick volume
		 Ctrl-Alt-Minus (many clones) set clock speed to low
		 Ctrl-Alt-SysReq (HP Vectra) generate hard reset
	DRDOS hooks this interrupt to control the cursor shape (underscore/
	  half block) for overwrite/insert mode
	DR Multiuser DOS hooks this interrupt for cursor shape control and to
	  control whether Ctrl-Alt-Del reboots the current session or the
	  entire system
SeeAlso: INT 05,INT 0B"HP 95LX",INT 15/AH=4Fh,INT 15/AH=85h,INT 16,INT 1B
SeeAlso: INT 2F/AX=A901h,INT 4A"TI Professional",INT 51"DESQview"
SeeAlso: INT 59"DoubleDOS",INT 79"GO32"

(Table 0005)
Values for keyboard scan code:
 01h	Esc		 31h	N
 02h	1 !		 32h	M
 03h	2 @		 33h	, < 63h="" f16="" 04h="" 3="" #="" 34h="" .="">		 64h	F17
 05h	4 $		 35h	/ ?		 65h	F18
 06h	5 %		 36h	Right Shift	 66h	F19
 07h	6 ^		 37h	Grey*		 67h	F20
 08h	7 &		 38h	Alt		 68h	F21
 09h	8 *		 39h	SpaceBar	 69h	F22
 0Ah	9 (		 3Ah	CapsLock	 6Ah	F23
 0Bh	0 )		 3Bh	F1		 6Bh	F24
 0Ch	- _		 3Ch	F2		 6Ch	--
 0Dh	= +		 3Dh	F3		 6Dh	EraseEOF
 0Eh	Backspace	 3Eh	F4
 0Fh	Tab		 3Fh	F5		 6Fh	Copy/Play
 10h	Q		 40h	F6
 11h	W		 41h	F7
 12h	E		 42h	F8		 72h	CrSel
 13h	R		 43h	F9
 14h	T		 44h	F10		 74h	ExSel
 15h	Y		 45h	NumLock		 75h	--
 16h	U		 46h	ScrollLock	 76h	Clear
 17h	I		 47h	Home
 18h	O		 48h	UpArrow
 19h	P		 49h	PgUp
 1Ah	[ {		 4Ah	Grey-
 1Bh	] }		 4Bh	LeftArrow
 1Ch	Enter		 4Ch	Keypad 5
 1Dh	Ctrl		 4Dh	RightArrow
 1Eh	A		 4Eh	Grey+
 1Fh	S		 4Fh	End
 20h	D		 50h	DownArrow
 21h	F		 51h	PgDn
 22h	G		 52h	Ins
 23h	H		 53h	Del
 24h	J		 54h	SysReq
 25h	K
 26h	L		 56h	left \| (102-key)
 27h	; :		 57h	F11
 28h	' "		 58h	F12		 AAh	self-test complete
 29h	` ~					 E0h	prefix code
 2Ah	Left Shift	 5Ah	PA1		 E1h	prefix code
 2Bh	\ |		 5Bh	F13		 EEh	ECHO
 2Ch	Z		 5Ch	F14		 F0h	prefix code (key break)
 2Dh	X		 5Dh	F15		 FAh	ACK
 2Eh	C					 FDh	diagnostic failure
 2Fh	V					 FEh	RESEND
 30h	B					 FFh	kbd error/buffer full
Notes:	scan codes 56h-E1h are only available on the extended (101/102-key)
	  keyboard and Host Connected (122-key) keyboard; scan codes 5Ah-76h
	  are only available on the 122-key keyboard
	the SysReq key is often labeled SysRq
SeeAlso: #0460
--------C-09---------------------------------
INT 09 C - CPU-generated (80286,80386) - PROCESSOR EXTENSION PROTECTION ERROR
Desc:	called if the coprocessor attempts to access memory outside a segment
	  boundary; it may occur at an arbitrary time after the coprocessor
	  instruction was issued
Notes:	until the condition is cleared or the coprocessor is reset, the only
	  coprocessor instruction which may be used is FNINIT; WAIT or other
	  coprocessor instructions will cause a deadlock because the
	  coprocessor is still busy waiting for data
	for the 486+, a coprocessor protection error generates an INT 0D
SeeAlso: INT 07"CPU"
--------*-09---------------------------------
INT 09 P - internal hardware - RESERVED BY Intel (80486)
Note:	this exception has been moved to INT 0D
SeeAlso: INT 09"MATH",INT 0D
--------H-0A---------------------------------
INT 0A C - IRQ2 - LPT2 (PC), VERTICAL RETRACE INTERRUPT (EGA,VGA)
Notes:	the TOPS and PCnet adapters use this interrupt request line by default
	DOS 3.2 revectors IRQ2 to a stack-switching routine
	on ATs and above, the physical data line for IRQ2 is labeled IRQ9 and
	  connects to the slave 8259.  The BIOS redirects the interrupt for
	  IRQ9 back here.
	under DESQview, only the INT 15h vector and BASIC segment address (the
	  word at 0000h:0510h) may be assumed to be valid for the handler's
	  process
	many VGA boards do not implement the vertical retrace interrupt,
	  including the IBM VGA Adapter where the traces are either cut or
	  removed
SeeAlso: INT 52"DESQview",INT 5A"DoubleDOS",INT 71,INT 7A"GO32"
--------H-0A---------------------------------
INT 0A C - IRQ2 - Tandy 1000-series HARD DISK
Notes:	this interrupt may be masked by setting bit 2 on I/O port 21h
	the Tandy 1000, 1000A, and 1000HD use IRQ2 for the hard disk; the
	  1000EX, HX, RLX, RLX-HD, RLX-B, RLX-HD-B use IRQ5 instead; the
	  1000RL, RL-HD, SL, SL/2, TL, TL/2, and TL/3 are jumper-selectable
	  for either IRQ2 or IRQ5 (default IRQ5); the 1000SX and TX are
	  DIP-switch selectable for IRQ2 or IRQ5 (default IRQ2); the RSX and
	  RSX-HD use IRQ14.  Tandy systems which use IRQ2 for the hard disk
	  interrupt use IRQ5 for vertical retrace.
SeeAlso: INT 52"DESQview",INT 5A"DoubleDOS",INT 71
--------H-0A---------------------------------
INT 0A - IRQ2 - ROLAND MPU MIDI INTERFACE
Note:	newer Roland cards and MIDI interfaces by other manufacturers use
	  a jumper-selectable IRQ, but software and hardware generally defaults
	  to IRQ2
SeeAlso: INT 52"DESQview",INT 5A"DoubleDOS",INT 71,INT 7A"GO32"
--------C-0A---------------------------------
INT 0A CP - CPU-generated (80286+) - INVALID TASK STATE SEGMENT
Desc:	automatically called during a task switch if the new TSS specified by
	  the task gate is invalid for any of the following reasons:
		TSS limit is less than 43 (80286) or 103 (80386/80486)
		LDT selector invalid or segment not present
		null SS selector, or SS selector outside LDT/GDT limit
		stack segment is read-only
		stack segment DPL differs from new CPL, or RPL <> CPL
		CS selector is outside LDT/GDT limit or not code
		non-conforming code segment's DPL differs from CPL
		conforming code segment's DPL > CPL
		DS/ES selectors outside LDT/GDT limit or not readable segments
Note:	the handler must use a task gate in order to have a valid TSS under
	  which to execute; it must also reset the busy bit in the new TSS
SeeAlso: INT 0B"CPU"
--------H-0B---------------------------------
INT 0B C - IRQ3 - SERIAL COMMUNICATIONS (COM2)
Desc:	automatically asserted by the UART when COM2 needs attention, if the
	  UART has been programmed to generate interrupts
Notes:	the TOPS and PCnet adapters use this interrupt request line as an
	  alternate
	on PS/2s, COM2 through COM8 share this interrupt; on many PC's, COM4
	  shares this interrupt
	may be masked by setting bit 3 on I/O port 21h
SeeAlso: INT 0C"COM1",INT 53"DESQview",INT 5B"DoubleDOS",INT 7B"GO32"
--------C-0B---------------------------------
INT 0B CP - CPU-generated (80286+) - SEGMENT NOT PRESENT
Desc:	generated when loading a segment register if the segment descriptor
	  indicates that the segment is not currently in memory, unless the
	  segment is an LDT (see INT 0A"CPU") or stack segment (see
	  INT 0C"CPU") needed by a task switch
Note:	may be used to implement virtual memory by loading in segments as they
	  are accessed, clearing the "not present" bit after loading
SeeAlso: INT 0A"CPU",INT 0E"hardware"
--------h-0B---------------------------------
INT 0B - HP 95LX - LOW-LEVEL KEYBOARD HANDLER
Desc:	this is the lowest-level keyboard handler on an HP 95LX palmtop
Note:	debounces key, places the keycode in I/O register 60h, and calls INT 09
SeeAlso: INT 09,INT 0D"HP 95LX",INT 15/AX=4DD4h
--------H-0C---------------------------------
INT 0C C - IRQ4 - SERIAL COMMUNICATIONS (COM1)
Desc:	automatically asserted by the UART when COM1 needs attention, if the
	  UART has been programmed to generate interrupts
BUG:	this vector is modified but not restored by Direct Access v4.0, and
	  may be left dangling by other programs written with the same version
	  of compiled BASIC
Notes:	on many PC's, COM3 shares this interrupt
	may be masked by setting bit 4 on I/O port 21h
SeeAlso: INT 0B"COM2",INT 54"DESQview",INT 5C"DoubleDOS",INT 7C"GO32"
--------C-0C---------------------------------
INT 0C C - CPU-generated (80286+) - STACK FAULT
Desc:	this interrupt is generated in protected mode on a stack overflow or
	  underflow, or if an inter-level transition or task switch references
	  a stack segment marked "not present"; it is generated in real mode
	  on accessing a word operand at SS:FFFFh
Note:	the 80286 will shut down in real mode if SP=1 before a push.  On the
	  PC AT and compatibles, external circuitry generates a reset on
	  shutdown.
SeeAlso: INT 0B"CPU",INT 0D"CPU"
--------I-0C---------------------------------
INT 0C - IBM SYSTEM 36/38 WORKSTATION EMULATION - API POINTER
Desc:	the IBM System 36/38 emulator may be invoked through a private API,
	  whose entry point address (see #0006) is offset 100h in the segment
	  pointed at by this vector

(Table 0006)
Call the System 36/38 emulator API entry point with:
	AH = function
		 03h update screen
		 05h select next session
		AL = session number (00h-03h)
		Return: AL = session type code
				 00h not active
				 01h display session
				 02h printer session
				 FEh invalid session number
			DS = requested session's data segment (0 if not active)
				 (see #0007)
Return: ???

Format of System 36/38 emulator's data area:
Offset	Size	Description	(Table 0007)
13Eh	BYTE	bit flags for status line indicators turned on since this byte
		last zerod
13Fh	BYTE	bit flags for status line indicators turned off since this
		byte last set to FFh
140h	WORD	offset of EBCDIC to ASCII translation
146h	WORD	offset of EBCDIC screen buffer
148h	WORD	offset of EC (engineering change) level signature
150h	BYTE	"KEYI"
151h	BYTE	5250 key scan code to be sent to remote
15Bh	BYTE	"SYSAV"
15Dh	BYTE	5250 cursor column
15Eh	BYTE	5250 cursor row
167h	BYTE	"DVCTAD"
178h	BYTE	"FLAGS"
184h	BYTE	"SESSNOAD"
193h	BYTE	"STNAD"
198h	BYTE	"NSDS"
Note:	offsets are from the interrupt handler's segment
--------H-0D---------------------------------
INT 0D C - IRQ5 - FIXED DISK (PC,XT), LPT2 (AT), reserved (PS/2)
Notes:	under DESQview, only the INT 15h vector and BASIC segment address (the
	  word at 0000h:0510h) may be assumed to be valid for the handler's
	  process
	the Tandy 1000, 1000A, and 1000HD use IRQ2 for the hard disk; the
	  1000EX, HX, RLX, RLX-HD, RLX-B, RLX-HD-B use IRQ5 instead; the
	  1000RL, RL-HD, SL, SL/2, TL, TL/2, and TL/3 are jumper-selectable
	  for either IRQ2 or IRQ5 (default IRQ5); the 1000SX and TX are
	  DIP-switch selectable for IRQ2 or IRQ5 (default IRQ2); the RSX and
	  RSX-HD use IRQ14.  Tandy systems which use IRQ2 for the hard disk
	  interrupt use IRQ5 for vertical retrace.
	may be masked by setting bit 5 on I/O port 21h
SeeAlso: INT 0E"IRQ6",INT 0F"IRQ7",INT 55"DESQview",INT 5D"DoubleDOS"
SeeAlso: INT 7D"GO32"
--------H-0D---------------------------------
INT 0D C - IRQ5 - Tandy 1000 60 Hz RAM REFRESH
Desc:	used to ensure that the dynamic RAM retains its contents in earlier
	  1000-series models; later models use normal DMA for RAM refresh
	  (some early models have no DMA unless it is added via an expansion
	  card)
SeeAlso: INT 55
--------h-0D---------------------------------
INT 0D - HP 95LX - INFRARED INTERRUPT
Desc:	this interrupt is used to perform communications over the infrared
	  data link
SeeAlso: INT 0B"HP 95LX",INT 0E"HP 95LX",INT 15/AX=4DD4h
--------C-0D---------------------------------
INT 0D C - CPU-generated (80286+) - GENERAL PROTECTION VIOLATION
Desc:	the CPU generates this interrupt when it detects a protection violation
	  which does not fit under any other category having a separate
	  interrupt
Notes:	called in real mode when
		 an instruction accesses a memory operand extending beyond offset
			FFFFh (i.e. WORD at FFFFh or DWORD at FFFDh or higher) in segment
			CS, DS, ES, FG, or GS
		 a PUSH MEM or POP MEM instruction contains an invalid bit encoding
			in the second byte
		 an instruction exceeds the maximum length allowed (10 bytes for
			80286, 15 bytes for 80386/80486)
		 an instruction wraps from offset FFFFh to offset 0000h
	called in protected mode on protection violations not covered by INT 06
	  through INT 0C, including
		 segment limit violations
		 write to read-only segments
		 accesses using null DS or ES selectors
		 accesses to segments with privilege greater than CPL
		 wrong descriptor type
	called on 80486 protected-mode floating-point protection fault
SeeAlso: INT 09"80486",INT 0C"STACK"
--------H-0E---------------------------------
INT 0E C - IRQ6 - DISKETTE CONTROLLER
Desc:	this interrupt is generated by the floppy disk controller on
	  completion of an operation
Notes:	default handler is at F000h:EF57h in IBM PC and 100%-compatible BIOSes
	may be masked by setting bit 6 on I/O port 21h
SeeAlso: INT 0D"IRQ5",INT 56"DESQview",INT 5E"DoubleDOS",INT 7E"GO32"
--------C-0E---------------------------------
INT 0E C - CPU-generated (80386+ native mode) - PAGE FAULT
Desc:	this interrupt is generated in protected and virtual-86 modes on
	  attempting to access a 4K memory page whose page table entry has
	  the "present" bit cleared
Note:	used to implement virtual memory
SeeAlso: INT 0B"hardware"
--------h-0E---------------------------------
INT 0E C - HP 95LX - EXTERNAL CARD INTERRUPT
SeeAlso: INT 0D"HP 95LX",INT 0F"HP 95LX",INT 15/AX=4DD4h
--------H-0F---------------------------------
INT 0F C - IRQ7 - PARALLEL PRINTER
Desc:	this interrupt is generated by the LPT1 printer adapter when the
	  printer becomes ready
Notes:	most printer adapters do not reliably generate this interrupt
	the 8259 interrupt controller generates an interrupt corresponding to
	  IRQ7 when an error condition occurs
SeeAlso: INT 0D"LPT2",INT 57"DESQview",INT 5F"DoubleDOS",INT 7F"GO32"
--------h-0F---------------------------------
INT 0F C - HP 95LX - REAL-TIME CLOCK
SeeAlso: INT 0E"HP 95LX",INT 15/AX=4DD4h,INT 70
--------C-10---------------------------------
INT 10 C - CPU-generated (80286+) - COPROCESSOR ERROR
Desc:	this interrupt is generated by the CPU when the -ERROR pin is asserted
	  by the coprocessor
Note:	AT's and clones usually wire the coprocessor to use IRQ13, but not all
	  get it right
SeeAlso: INT 09"hardware",INT 75
--------V-1000-------------------------------
INT 10 - VIDEO - SET VIDEO MODE
	AH = 00h
	AL = desired video mode (see #0009)
Return: AL = video mode flag (Phoenix, AMI BIOS)
		 20h mode > 7
		 30h modes 0-5 and 7
		 3Fh mode 6
	AL = CRT controller mode byte (Phoenix 386 BIOS v1.10)
Desc:	specify the display mode for the currently active display adapter
Notes:	IBM standard modes do not clear the screen if the high bit of AL is set
	  (EGA or higher only)
	the Tseng ET4000 chipset is used by the Orchid Prodesigner II, Diamond
	  SpeedSTAR VGA, Groundhog Graphics Shadow VGA, Boca Super X VGA,
	  Everex EV-673
	the installation check for Ahead adapters is the signature "AHEAD" at
	  C000h:0025h
	the installation check for Paradise adapters is the signature "VGA=" at
	  C000h:007Dh
	the installation check for Oak Tech OTI-037/057/067/077 chipsets is the
	  signature "OAK VGA" at C000h:0008h
	the installation check for ATI adapters is the signature "761295520" at
	  C000h:0031h; the byte at C000h:0043h indicates the chipset revision:
		31h for 18800
		32h for 18800-1
		33h for 18800-2
		34h for 18800-4
		35h for 18800-5
	  the two bytes at C000h:0040h indicate the adapter type
		"22" EGA Wonder
		"31" VGA Wonder
		"32" EGA Wonder800+
	  the byte at C000h:0042h contains feature flags
		bit 1: mouse port present
		bit 4: programmable video clock
	  the byte at C000h:0044h contains additional feature flags if chipset
		 byte > 30h (see #0008)
	the installation check for Genoa video adapters is the signature
	  77h XXh 99h 66h at C000h:NNNNh, where NNNNh is stored at C000h:0037h
	  and XXh is
		00h for Genoa 6200/6300
		11h for Genoa 6400/6600
		22h for Genoa 6100
		33h for Genoa 5100/5200
		55h for Genoa 5300/5400
	  for SuperEGA BIOS v2.41+, C000h:0057h contains the product level
	  for SuperEGA BIOS v3.0+, C000h:0070h contains the signature
		 "EXTMODE", indicating support for extended modes
SeeAlso: AX=0070h,AX=007Eh,AX=10E0h,AX=10F0h,AH=40h,AX=6F05h,AH=FFh"GO32"
SeeAlso: INT 33/AX=0028h,INT 5F/AH=00h,INT 62/AX=0001h
Index:	installation check;Tseng ET4000|installation check;Ahead video cards
Index:	installation check;Oak Technologies|installation check;ATI video cards
Index:	installation check;Paradise video|installation check;Genoa video cards

Bitfields for ATI additional feature flags:
Bit(s)	Description	(Table 0008)
 0	70 Hz non-interlaced display
 1	Korean (double-byte) characters
 2	45 MHz memory clock rather than 40 MHz
 3	zero wait states
 4	paged ROMs
 6	no 8514/A monitor support
 7	HiColor DAC

(Table 0009)
Values for video mode:
	  text/ text pixel	pixel	colors disply scrn  system
	  grph resol	 box  resolution       pages  addr
 00h = T  40x25	 8x8   320x200	16gray	  8   B800 CGA,PCjr,Tandy
	  = T  40x25	 8x14  320x350	16gray	  8   B800 EGA
	  = T  40x25	 8x16  320x400	 16	  8   B800 MCGA
	  = T  40x25	 9x16  360x400	 16	  8   B800 VGA
 01h = T  40x25	 8x8   320x200	 16	  8   B800 CGA,PCjr,Tandy
	  = T  40x25	 8x14  320x350	 16	  8   B800 EGA
	  = T  40x25	 8x16  320x400	 16	  8   B800 MCGA
	  = T  40x25	 9x16  360x400	 16	  8   B800 VGA
 02h = T  80x25	 8x8   640x200	16gray	  4   B800 CGA,PCjr,Tandy
	  = T  80x25	 8x14  640x350	16gray	  8   B800 EGA
	  = T  80x25	 8x16  640x400	 16	  8   B800 MCGA
	  = T  80x25	 9x16  720x400	 16	  8   B800 VGA
 03h = T  80x25	 8x8   640x200	 16	  4   B800 CGA,PCjr,Tandy
	  = T  80x25	 8x14  640x350	 16/64	  8   B800 EGA
	  = T  80x25	 8x16  640x400	 16	  8   B800 MCGA
	  = T  80x25	 9x16  720x400	 16	  8   B800 VGA
 04h = G  40x25	 8x8   320x200	  4	  .   B800 CGA,PCjr,EGA,MCGA,VGA
 05h = G  40x25	 8x8   320x200	 4gray	  .   B800 CGA,PCjr,EGA
	  = G  40x25	 8x8   320x200	  4	  .   B800 MCGA,VGA
 06h = G  80x25	 8x8   640x200	  2	  .   B800 CGA,PCjr,EGA,MCGA,VGA
	  = G  80x25	  .	  .	mono	  .   B000 HERCULES.COM on HGC [14]
 07h = T  80x25	 9x14  720x350	mono	 var  B000 MDA,Hercules,EGA
	  = T  80x25	 9x16  720x400	mono	  .   B000 VGA
 08h = T 132x25	 8x8  1056x200	 16	  .   B800 ATI EGA/VGA Wonder [2]
	  = T 132x25	 8x8  1056x200	mono	  .   B000 ATI EGA/VGA Wonder [2]
	  = G  20x25	 8x8   160x200	 16	  .	.  PCjr, Tandy 1000
	  = G  90x43	 8x8   720x348	mono	  .   B000 Hercules + MSHERC.COM
	  = G  90x45	 8x8   720x360	mono	  .   B000 Hercules + HERKULES [11]
 09h = G  40x25	 8x8   320x200	 16	  .	.  PCjr, Tandy 1000
 0Ah = G  80x25	 8x8   640x200	  4	  .	.  PCjr, Tandy 1000
 0Bh =	 reserved				   (EGA BIOS internal use)
	  = G  80x25	 8x8   640x200	 16	  .	.  Tandy 1000 SL/TL [13]
 0Ch =	 reserved				   (EGA BIOS internal use)
 0Dh = G  40x25	 8x8   320x200	 16	  8   A000 EGA,VGA
 0Eh = G  80x25	 8x8   640x200	 16	  4   A000 EGA,VGA
 0Fh = G  80x25	 8x14  640x350	mono	  2   A000 EGA,VGA
 10h = G  80x25	 8x14  640x350	  4	  2   A000 64k EGA
	  = G    .	  .    640x350	 16	  .   A000 256k EGA,VGA
 11h = G  80x30	 8x16  640x480	mono	  .   A000 VGA,MCGA,ATI EGA,ATI VIP
 12h = G  80x30	 8x16  640x480	 16/256K  .   A000 VGA,ATI VIP
	  = G  80x30	 8x16  640x480	 16/64	  .   A000 ATI EGA Wonder
	  = G    .	  .    640x480	 16	  .	.  UltraVision+256K EGA
 13h = G  40x25	 8x8   320x200	256/256K  .   A000 VGA,MCGA,ATI VIP
 14h = T 132x25	 Nx16	  .	 16	  .	.  XGA, IBM Enhanced VGA [3]
	  = T 132x25	 8x16 1056x400	 16/256K  .	.  Cirrus CL-GD5420/5422/5426
	  = G  80x25	 8x8   640x200	  .	  .	.  Lava Chrome II EGA
	  = G    .	  .    640x400	 16	  .	.  Tecmar VGA/AD
 15h = G  80x25	 8x14  640x350	  .	  .	.  Lava Chrome II EGA
 16h = G  80x25	 8x14  640x350	  .	  .	.  Lava Chrome II EGA
	  = G    .	  .    800x600	 16	  .	.  Tecmar VGA/AD
 17h = T 132x25	  .	  .	  .	  .	.  Tecmar VGA/AD
	  = T  80x43	 8x8   640x348	 16	  4   B800 Tseng ET4000 BIOS [10]
	  = G  80x34	 8x14  640x480	  .	  .	.  Lava Chrome II EGA
 18h = T  80x30	 9x16  720x480	 16	  1   A000 Realtek RTVGA [12]
	  = T 132x25	  .	  .	mono	  .   B000 Cirrus 5320 chipset
	  = T 132x44	 8x8  1056x352	mono	  .   B000 Tseng Labs EVA
	  = T 132x44	 9x8  1188x352	 4gray	  2   B000 Tseng ET3000 chipset
	  = T 132x44	 8x8  1056x352	 16/256	  2   B000 Tseng ET4000 chipset
	  = G  80x34	 8x14  640x480	  .	  .	.  Lava Chrome II EGA
	  = G	      1024x768	 16	  .	.  Tecmar VGA/AD
 19h = T  80x43	 9x11  720x473	 16	  1   A000 Realtek RTVGA [12]
	  = T 132x25	 8x14 1056x350	mono	  .   B000 Tseng Labs EVA
	  = T 132x25	 9x14 1188x350	 4gray	  4   B000 Tseng ET3000 chipset
	  = T 132x25	 8x14 1056x350	 16/256	  4   B000 Tseng ET4000 chipset
	  = T 132x34	  .	  .	mono	  .   B000 Cirrus 5320 chipset
 1Ah = T  80x60	 9x8   720x480	 16	  1   A000 Realtek RTVGA [12]
	  = T 132x28	 8x13 1056x364	mono	  .   B000 Tseng Labs EVA
	  = T 132x28	 9x13 1188x364	 4gray	  4   B000 Tseng ET3000 chipset
	  = T 132x28	 8x13 1056x364	 16/256	  4   B000 Tseng ET4000 chipset
	  = T 132x44	  .	  .	mono	  .   B000 Cirrus 5320 chipset
	  = G    .	  .    640x350	256	  .	.  Tecmar VGA/AD
 1Bh = T 132x25	 9x14 1188x350	 16	  1   A000 Realtek RTVGA [12]
	  = G    .	  .    640x400	256	  .	.  Tecmar VGA/AD
 1Ch = T 132x25	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = T 132x30	 9x16 1188x480	 16	  1   A000 Realtek RTVGA [12]
	  = G    .	  .    640x480	256	  .	.  Tecmar VGA/AD
 1Dh = T 132x43	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = T 132x43	 9x11 1188x473	 16	  1   A000 Realtek RTVGA [12]
	  = G    .	  .    800x600	256	  .	.  Tecmar VGA/AD
 1Eh = T 132x44	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = T 132x60	 9x8  1188x480	 16	  1   A000 Realtek RTVGA [12]
 1Fh = G 100x75	 8x8   800x600	 16	  1   A000 Realtek RTVGA
 20h = T 132x25	  .	  .	 16	  .	.  Avance Logic AL2101
	  = G  40x16	  .    240x128	mono	  .   B000 HP 95LX/100LX/200LX
	  = G 120x45	 8x16  960x720	 16	  1   A000 Realtek RTVGA
 21h = T  80x25	  .	  .	mono	  .   B000 HP 200LX
	  = T 132x30	  .	  .	 16	  .	.  Avance Logic AL2101
	  = T 132x44	 9x9  1188x396	 16/256K  .   B800 WD90C
	  = T 132x44	 9x9  1188x396	 16	  .   B800 Diamond Speedstar 24X
	  = T 132x60	  .	  .	 16	  2   B800 Tseng ET4000 chipset [10]
	  = G  80x43	 8x8   720x348	mono	  .   B000 DESQview 2.x+Hercules [4]
	  = G 128x48	 8x16 1024x768	 16	  1   A000 Realtek RTVGA [12]
 22h = T 132x43	  .	  .	  .	  .	.  Allstar Peacock (VGA)
	  = T 132x43	  .	  .	 16	  .	.  Avance Logic AL2101
	  = T 132x44	 8x8  1056x352	  .	  .   B800 Tseng Labs EVA
	  = T 132x44	 9x8  1188x352	 16/256K  2   B800 Tseng ET3000 chipset
	  = T 132x44	 8x8  1056x352	 16/256K  2   B800 Tseng ET4000 chipset
	  = T 132x44	 8x8  1056x352	  .	  .	.  Ahead Systems EGA2001
	  = T 132x44	 8x8  1056x352	 16	  2   B800 Ahead B
	  = T 132x44	 8x9  1056x398	 16	  .	.  STB Lightspeed ET4000/W32P
	  = T 132x44	  .	  .	 16	  .	.  Orchid Prodesigner VGA
	  = G  80x43	 8x8   720x348	mono	  .   B800 DESQview 2.x+Hercules [4]
	  = G  96x64	 8x16  768x1024	 16	  1   A000 Realtek RTVGA
 23h = T 132x25	 6x14  792x350	  .	  .   B800 Tseng Labs EVA
	  = T 132x25	 9x14 1188x350	 16/256K  4   B800 Tseng ET3000 chipset
	  = T 132x25	 8x14 1056x350	 16/256	  4   B800 Tseng ET4000 chipset
	  = T 132x25	 8x14 1056x350	  .	  .	.  Ahead Systems EGA2001
	  = T 132x25	 8x14 1056x350	 16	  4   B800 Ahead B
	  = T 132x25	 8x8  1056x200	 16	  .   B800 ATI EGA Wonder,ATI VIP
	  = T 132x25	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = T 132x28	  .	  .	  .	  .	.  Allstar Peacock (VGA)
	  = T 132x28	  .	  .	 16	  .	.  Orchid Prodesigner VGA
	  = T 132x60	  .	  .	 16	  .	.  Avance Logic AL2101
	  = G 128x48	 8x16 1024x768	  4	  1   A000 Realtek RTVGA
 24h = T  80x30	  .	  .	 16	  .	.  Avance Logic AL2101
	  = T 132x25	  .	  .	  .	  .	.  Allstar Peacock (VGA)
	  = T 132x25	  .	  .	 16	  .	.  Orchid Prodesigner VGA
	  = T 132x28	 6x13  792x364	  .	  .   B800 Tseng Labs EVA
	  = T 132x28	 9x13 1188x364	 16/256K  4   B800 Tseng ET3000 chipset
	  = T 132x28	 8x12 1056x336	 16	  1   B800 Ahead B
	  = T 132x28	 8x13 1056x364	 16/256K  4   B800 Tseng ET4000 chipset
	  = T 132x28	 8x14 1056x392	 16	  .	.  STB Lightspeed ET4000/W32P
	  = T 132x28	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = G  64x32	 8x16  512x512	256	  1   A000 Realtek RTVGA
 25h = T  80x43	  .	  .	 16	  .	.  Avance Logic AL2101
	  = G  80x60	 8x8   640x480	  .	  .   A000 Tseng Labs EVA
	  = G  80x60	 8x8   640x480	 16/256K  1   A000 Tseng ET3000/4000 chipset
	  = G    .	  .    640x480	 16	  .	.  VEGA VGA
	  = G  80x60	 8x8   640x480	 16	  .   A000 Orchid Prodesigner VGA
	  = G  80x60	 8x8   640x480	 16	  1   A000 Ahead B (same as 26h)
	  = G    .	  .    640x480	 16	  .	.  NEC GB-1
	  = G    .	  .    640x480	 16	  .	.  Cirrus 5320 chipset
	  = G    .	  .    640x400	256	  .	.  Realtek RTVGA
 26h = T  80x60	 8x8   640x480	  .	  .	.  Tseng Labs EVA
	  = T  80x60	 8x8   640x480	 16/256K  3   B800 Tseng ET3000/4000 chipset
	  = T  80x60	  .	  .	  .	  .	.  Allstar Peacock (VGA)
	  = T  80x60	  .	  .	 16	  .	.  Orchid ProDesigner VGA
	  = T  80x60	  .	  .	 16	  .	.  Avance Logic AL2101
	  = G  80x60	 8x8   640x480	  .	  .	.  Ahead Systems EGA2001
	  = G  80x60	 8x8   640x480	 16	  1   A000 Ahead B (same as 25h)
	  = G    .	  .    640x480	256	  .	.  Realtek RTVGA
 27h = T 132x25	 8x8  1056x200	mono	  .   B000 ATI EGA Wonder,ATI VIP
	  = G    .	  .    720x512	 16	  .	.  VEGA VGA
	  = G    .	  .    720x512	 16	  .	.  Genoa
	  = G 100x75	 8x8   800x600	256	  1   A000 Realtek RTVGA [12]
	  = G    .	  .    960x720	 16	  .	.  Avance Logic AL2101
 28h = T ???x???  .	  .	  .	  .	.  VEGA VGA
	  = G    .	  .    512x512	256	  .	.  Avance Logic AL2101
	  = G    .	  .   1024x768	256	  .	.  Realtek RTVGA (1meg)
 29h = G    .	  .    640x400	256	  .	.  Avance Logic AL2101
	  = G    .	  .    800x600	 16	  .	.  VEGA VGA
	  = G 100x37	 8x16  800x600	 16	  .   A000 Orchid
	  = G    .	  .    800x600	 16	  .   A000 STB,Genoa,Sigma
	  = G    .	  .    800x600	 16	  .	.  Allstar Peacock (VGA)
	  = G 100x37	 8x16  800x600	 16/256K  1   A000 Tseng ET3000/4000 chipset
	  = G    .	  .    800x600	???	  .	.  EIZO MDB10
	  = G    .	  .    800x600	 16	  .	.  Cirrus 5320 chipset
	  = G   NA	  .    800x600	 16	  .	.  Compaq QVision 1024/1280
	  = G    .	  .   1024x1024 256	  .	.  Realtek RTVGA BIOS v3.C10
 2Ah = T 100x40	  .	  .	  .	  .	.  Allstar Peacock (VGA)
	  = T 100x40	 8x16  800x640	 16	  .	.  Orchid Prodesigner VGA
	  = T 100x40	 8x15  800x600	 16/256K  4   B800 Tseng ET3000/4000 chipset
	  = T 100x40	 8x15  800x600	 16	  .	.  STB Lightspeed ET4000/W32P
	  = G    .	  .    640x480	256	  .	.  Avance Logic AL2101
	  = G    .	  .   1280x1024	 16	  .	.  Realtek RTVGA
 2Bh = G    .	  .    800x600	 16	  .	.  Avance Logic AL2101
 2Ch = G    .	  .    800x600	256	  .	.  Avance Logic AL2101
 2Dh = G    .	  .    640x350	256	  .	.  VEGA VGA
	  = G    .	  .    640x350	256/256K  .   A000 Orchid, Genoa, STB
	  = G  80x25	 8x14  640x350	256/256K  1   A000 Tseng ET3000/4000 chipset
	  = G    .	  .    640x350	256	  .	.  Cirrus 5320 chipset
	  = G  80x25	 8x14  640x350	256	  .	.  STB Lightspeed ET4000/W32P
	  = G    .	  .    768x1024	 16	  .	.  Avance Logic AL2101
 2Eh = G    .	  .    640x480	256	  .	.  VEGA VGA
	  = G  80x30	 8x16  640x480 256/256K	  .   A000 Orchid
	  = G    .	  .    640x480 256/256K	  .   A000 STB,Genoa,Sigma
	  = G  80x30	 8x16  640x480 256/256K	  1   A000 Tseng ET3000/4000 chipset
	  = G    .	  .    640x480 256/256K	  .	.  Compaq QVision 1024/1280
	  = G    .	  .    768x1024 256	  .	.  Avance Logic AL2101
 2Fh = T 160x50	 8x8  1280x400	 16	  4   B800 Ahead B (Wizard/3270)
	  = G    .	  .    720x512	256	  .	.  VEGA VGA
	  = G    .	  .    720x512	256	  .	.  Genoa
	  = G  80x25	 8x16  640x400 256/256K	  1   A000 Tseng ET4000 chipset
	  = G    .	  .   1024x768	  4	  .	.  Avance Logic AL2101
 30h = G    .	  .    800x600	256	  .	.  VEGA VGA
	  = G 100x37	 8x16  800x600 256/256K	  .   A000 Orchid
	  = G    .	  .    800x600 256/256K	  .   A000 STB,Genoa,Sigma
	  = G    .	  .    720x350	  2	  .	.  3270 PC
	  = G    .	  .    800x600	256	  .	.  Cardinal
	  = G    .	  .	  .	  .	  .   B800 AT&T 6300
	  = G 100x37	 8x16  800x600 256/256K	  1   A000 Tseng ET3000/4000 chipset
	  = G    .	  .   1024x768	 16	  .	.  Avance Logic AL2101
 31h = G    .	  .   1024x768	256	  .	.  Avance Logic AL2101
 32h = T  80x34	 8x10	  .	 16	  4   B800 Ahead B (Wizard/3270)
	  = G    .	  .    640x480	256	  .	.  Compaq QVision 1024/1280
 33h = T 132x44	 8x8	  .	 16	  .   B800 ATI EGA Wonder,ATI VIP
	  = T  80x34	 8x8	  .	 16	  4   B800 Ahead B (Wizard/3270)
 34h = T  80x66	 8x8	  .	 16	  4   B800 Ahead B (Wizard/3270)
	  = G    .	  .    800x600	256	  .	.  Compaq QVision 1024/1280
 36h = G    .	  .    960x720	 16	  .	.  VEGA VGA, STB
	  = G    .	  .    960x720	 16	  .   A000 Tseng ET3000 only
	  = G    .	  .   1280x1024	 16	  .	.  Avance Logic AL2101
 37h = T 132x44	 8x8	  .	mono	  .   B800 ATI EGA Wonder,ATI VIP
	  = G    .	  .   1024x768	 16	  .	.  VEGA VGA
	  = G 128x48	 8x16 1024x768	 16	  .   A000 Orchid
	  = G    .	  .   1024x768	 16	  .   A000 STB,Genoa,Sigma
	  = G    .	  .   1024x768	 16	  .	.  Definicon
	  = G 128x48	 8x16 1024x768	 16	  1   A000 Tseng ET3000/4000 chipset
	  = G    .	  .   1024x768	 16	  .	.  Compaq QVision 1024/1280
	  = G    .	  .   1280x1024 256	  .	.  Avance Logic AL2101
 38h = G    .	  .   1024x768	256	  .	.  STB VGA/EM-16 Plus (1MB)
	  = G 128x48	 8x16 1024x768	256/256K  1   A000 Tseng ET4000 chipset
	  = G    .	  .   1024x768	256	  .	.  Orchid ProDesigner II
	  = G    .	  .   1024x768	256	  .	.  Compaq QVision 1024/1280
 39h = G    .	  .   1280x1024	 16	  .	.  Compaq QVision 1280
 3Ah = G    .	  .   1280x1024	256	  .	.  Compaq QVision 1280
 3Bh = G    .	  .    512x480	256	  .	.  Compaq QVision 1024/1280
 3Ch = G    .	  .    640x400	 64K	  .	.  Compaq QVision 1024/1280
 3Dh = G    .	  .   1280x1024	 16	  .	.  Definicon
	  = G 128x64	 8x16 1280x1024	 16	  1   A000 Tseng ET4000 v3.00 [1,7]
 3Eh = G    .	  .   1280x961	 16	  .	.  Definicon
	  = G    .	  .    640x480	 64K	  .	.  Compaq QVision 1024/1280
 3Fh = G    .	  .   1280x1024 256	  .	.  Hercules ??? (ET4000W32)
	  = G    .	  .    800x600	 64K	  .	.  Compaq QVision 1024/1280
 40h = T  80x43	  .	  .	  .	  .	.  VEGA VGA, Tecmar VGA/AD
	  = T  80x43	  .	  .	  .	  .	.  Video7 V-RAM VGA
	  = T  80x43	  .	  .	  .	  .	.  Tatung VGA
	  = T 100x30	  .	  .	 16	  .	.  MORSE VGA
	  = T 100x30	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = T  80x25	  .    720x350	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    320x200	 64K	  .	.  Avance Logic AL2101
	  = G  80x25	 8x16  640x400	  2	  1   B800 AT&T 6300, AT&T VDC600
	  = G  80x25	 8x16  640x400	  2	  1   B800 Olivetti Quaderno
	  = G  80x25	 8x16  640x400	  2	  1   B800 Compaq Portable
	  = G    .	  .   1024x768	 64K	  .	.  Compaq QVision 1280
 41h = T 132x25	  .	  .	  .	  .	.  VEGA VGA
	  = T 132x25	  .	  .	  .	  .	.  Tatung VGA
	  = T 132x25	  .	  .	  .	  .	.  Video7 V-RAM VGA
	  = T 100x50	  .	  .	 16	  .	.  MORSE VGA
	  = T 100x50	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = T  80x34	 9x14  720x476	 16/256K  .   B800 WD90C
	  = T  80x34	 9x14	  .	 16	  .   B800 Diamond Speedstar 24X
	  = G    .	  .    512x512	 64K	  .	.  Avance Logic AL2101
	  = G    .	  .    640x200	 16	  1	.  AT&T 6300
	  = G  80x25	  .    720x348	mono	  .   B000 Genoa SuperEGA BIOS 3.0+
 42h = T 132x43	  .	  .	  .	  .	.  VEGA VGA
	  = T 132x43	  .	  .	  .	  .	.  Tatung VGA
	  = T 132x43	  .	  .	  .	  .	.  Video7 V-RAM VGA
	  = T  80x34	 9x10	  .	  4	  4   B800 Ahead B (Wizard/3270)
	  = T 100x60	  .	  .	 16	  .	.  MORSE VGA
	  = T 100x60	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = G  80x25	 8x16  640x400	 16	  .	.  AT&T 6300, AT&T VDC600
	  = G    .	  .    640x400	 64K	  .	.  Avance Logic AL2101
	  = G  80x25	  .    720x348	mono	  .   B800 Genoa SuperEGA BIOS 3.0+
 43h = T  80x60	  .	  .	  .	  .	.  VEGA VGA
	  = T  80x60	  .	  .	  .	  .	.  Tatung VGA
	  = T  80x60	  .	  .	  .	  .	.  Video7 V-RAM VGA
	  = T  80x45	 9x8	  .	  4	  4   B800 Ahead B (Wizard/3270)
	  = T 100x75	  .	  .	 16	  .	.  MORSE VGA
	  = T  80x29	  .    720x348	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  . 640x200 of 640x400 viewport	   AT&T 6300 (unsupported)
	  = G    .	  .    640x480	 64K	  .	.  Avance Logic AL2101
 44h =	disable VDC and DEB output		.  AT&T 6300
	  = T 100x60	  .	  .	  .	  .	.  VEGA VGA
	  = T 100x60	  .	  .	  .	  .	.  Tatung VGA
	  = T 100x60	  .	  .	  .	  .	.  Video7 V-RAM VGA
	  = T  80x32	  .    720x352	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    800x600	 64K	  .	.  Avance Logic AL2101
 45h = T 132x28	  .	  .	  .	  .	.  Tatung VGA
	  = T 132x28	  .	  .	  .	  .	.  Video7 V-RAM VGA
	  = T  80x44	  .    720x352	mono	  .	.  Genoa SuperEGA BIOS 3.0+
 46h = T 132x25	 8x14	  .	mono	  .	.  Genoa 6400
	  = T 132x25	 9x14	  .	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G 100x40	 8x15  800x600	  2	  .	.  AT&T VDC600
 47h = T 132x29	 8x12	  .	mono	  .	.  Genoa 6400
	  = T 132x29	 9x12	  .	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = T 132x28	 9x16 1188x448	 16/256K  .   B800 WD90C
	  = T 132x28	 9x16	  .	 16	  .   B800 Diamond Speedstar 24X
	  = G 100x37	 8x16  800x600	 16	  .	.  AT&T VDC600
 48h = T 132x32	 8x12	  .	mono	  .	.  Genoa 6400
	  = T 132x32	 9x11	  .	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G  80x50	 8x8   640x400	  2	  .   B800 AT&T 6300, AT&T VDC600
	  = G  80x50	 8x8   640x400	  2	  .   B800 Olivetti Quaderno
 49h = T 132x44	 8x8	  .	mono	  .	.  Genoa 6400
	  = T 132x44	 9x8	  .	mono	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G  80x30	 8x16  640x480	  .	  .	.  Lava Chrome II EGA
 4Dh = T 120x25	  .	  .	  .	  .	.  VEGA VGA
	  = G    .	  .    512x480	 16M	  .	.  Compaq QVision 1024/1280
 4Eh = T 120x43	  .	  .	  .	  .	.  VEGA VGA
	  = T  80x60	 8x8	  .	 16/256K  .   B800 Oak OTI-067/OTI-077 [8]
	  = G    .	  .    640x400	 16M	  .	.  Compaq QVision 1024/1280
 4Fh = T 132x25	  .	  .	  .	  .	.  VEGA VGA
	  = T 132x60	  .	  .	  .	  .	.  some Oak Tech VGA [8]
	  = G    .	  .    640x480	 16M	  .	.  Compaq QVision 1280
 50h = T  80x30	 8x16	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = T  80x34	  .	  .	  .	  .	.  Lava Chrome II EGA
	  = T  80x43	  .	  .	mono	  .	.  VEGA VGA
	  = T 132x25	 9x14	  .	mono	  .	.  Ahead Systems EGA2001
	  = T 132x25	 9x14	  .	  4	  4   B800 Ahead B
	  = T 132x25	 8x14	  .	 16	  8   B800 OAK Technologies VGA-16
	  = T 132x25	 8x14	  .	 16/256K  .   B800 Oak OTI-037/067/077 [8]
	  = T 132x25	 8x14 1056x350	 16	  8   B800 UM587 chipset
	  = T 132x30	  .	  .	 16	  .	.  MORSE VGA
	  = T 132x30	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = G  80x30	 8x16  640x480	 16	  .	.  Paradise EGA-480
	  = G  80x30	 8x16  640x480	 16	  .	.  NEL Electronics BIOS
	  = G    .	  .    640x480	mono???	  .	.  Taxan 565 EGA
	  = G  40x25	 8x8   320x200	  .	  .	.  Genoa SuperEGA BIOS 3.0+
 51h = T  80x30	 8x16	  .	  .	  .	.  Paradise EGA-480
	  = T  80x30	 9x16	  .	  .	  .	.  NEL Electronics BIOS
	  = T  80x30	  .	  .	  .	  .	.  Lava Chrome II EGA
	  = T  80x43	 8x11	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = T 132x25	  .	  .	mono	  .	.  VEGA VGA
	  = T 132x28	 9x12	  .	  4	  4   B800 Ahead B
	  = T 132x43	 8x8	  .	 16	  5   B800 OAK Technologies VGA-16
	  = T 132x43	 8x8	  .	 16/256K  .   B800 Oak OTI-037/067/077
	  = T 132x43	 8x8  1056x344	 16	  5   B800 UM587 chipset
	  = T 132x50	  .	  .	 16	  .	.  MORSE VGA
	  = T 132x50	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = G  80x34	 8x14  640x480	 16	  .	.  ATI EGA Wonder
	  = G  80x25	 8x8   640x200	  .	  .	.  Genoa SuperEGA BIOS 3.0+
 52h = T  80x60	  .	  .	  .	  .	.  Lava Chrome II EGA
	  = T  80x60	 8x8	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = T 132x43	  .	  .	mono	  .	.  VEGA VGA
	  = T 132x44	 9x8	  .	mono	  .	.  Ahead Systems EGA2001
	  = T 132x44	 9x8	  .	  4	  2   B800 Ahead B
	  = T 132x60	  .	  .	 16	  .	.  MORSE VGA
	  = T 132x60	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = G  80x25	 8x19  640x480	 16	  1   A000 AX VGA (Kanji&superimpose)
	  = G  94x29	 8x14  752x410	 16	  .	.  ATI EGA Wonder
	  = G 100x75	 8x8   800x600	 16	  1   A000 OAK Technologies VGA-16
	  = G 100x75	 8x8   800x600	 16	  .   A000 Oak OTI-037 chipset [8]
	  = G 100x37	 8x16  800x600	 16	  .   A000 Oak OTI-067/077 chips [8]
	  = G 100x75	 8x8   800x600	 16	  .   A000 UM587 chipset
	  = G 128x30	 8x16 1024x480	 16	  .	.  NEL Electronics BIOS
 53h = T  80x25	 8x16	  .	  .	  .	.  NEL Electronics BIOS
	  = T  80x60	  .	  .	 16	  .	.  MORSE VGA
	  = T  80x60	  .	  .	  .	  .	.  Cirrus 510/520 chipset
	  = T 132x25	 8x14	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = T 132x43	  .	  .	  .	  .	.  Lava Chrome II EGA
	  = G  80x25	 8x19  640x480	 16	  1   A000 AX VGA (Kanji, no superimp.)
	  = G    .	  .    640x480	256	  .	.  Oak VGA
	  = G  80x30	 8x16  640x480	256	  .   A000 Oak OTI-067/OTI-077 [8]
	  = G 100x40	 8x14  800x560	 16	  .	.  ATI EGA Wonder,ATI VIP
	  = G    .	  .	  .	  .	  .	.  AX PC
 54h = T 132x25	  .	  .	  .	  .	.  Lava Chrome II EGA
	  = T 132x30	 8x16	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = T 132x43	 8x8	  .	  .	  .	.  Paradise EGA-480
	  = T 132x43	 8x8	  .	  .	  .	.  NEL Electronics BIOS
	  = T 132x43	 7x9	  .	 16/256K  .   B800 Paradise VGA
	  = T 132x43	 8x9	  .	 16/256K  .   B800 Paradise VGA on multisync
	  = T 132x43	  .	  .	  .	  .	.  Taxan 565 EGA
	  = T 132x43	  .	  .	  .	  .	.  AST VGA Plus
	  = T 132x43	  .	  .	  .	  .	.  Hewlett-Packard D1180A
	  = T 132x43	 7x9	  .	 16	  .	.  AT&T VDC600
	  = T 132x43	 9x9  1188x387	 16/256K  .   B800 WD90C
	  = T 132x43	 9x9  1188x387	 16/256K  .   B800 Diamond Speedstar 24X
	  = T 132x43	 9x9  1188x387	 16/256K  .   B800 Diamond Stealth 24
	  = T 132x43	 8x8  1056x350	 16/256K  .	.  Cirrus CL-GD5420/5422/5426
	  = T 132x50	 8x8	  .	 16	  .   A000 NCR 77C22 [9]
	  = G 100x42	 8x14  800x600	 16	  .   A000 ATI EGA Wonder, VGA Wonder
	  = G 100x42	 8x14  800x600	 16	  .   A000 ATI Ultra 8514A, ATI XL
	  = G    .	  .    800x600	256	  .   A000 Oak VGA
	  = G 100x37	 8x16  800x600	256	  .   A000 Oak OTI-067/077 chips [8]
 55h = T  80x66	 8x8	  .	 16/256K  .   A000 ATI VIP
	  = T 132x25	 8x14	  .	  .	  .	.  Paradise EGA-480
	  = T 132x25	 8x14	  .	  .	  .	.  NEL Electronics BIOS
	  = T 132x25	 7x16	  .	 16/256K  .   B800 Paradise VGA
	  = T 132x25	 8x16	  .	 16/256K  .   B800 Paradise VGA on multisync
	  = T 132x25	  .	  .	  .	  .	.  Taxan 565 EGA
	  = T 132x25	  .	  .	  .	  .	.  AST VGA Plus
	  = T 132x25	  .	  .	  .	  .	.  Hewlett-Packard D1180A
	  = T 132x25	 7x16	  .	 16	  .	.  AT&T VDC600
	  = T 132x25	 8x16	  .	 16	  .   A000 NCR 77C22 [9]
	  = T 132x25	 9x16 1188x400	 16/256K  .   B800 WD90C
	  = T 132x25	 9x16 1188x400	 16/256K  .   B800 Diamond Speedstar 24X
	  = T 132x25	 9x16 1188x400	 16/256K  .   B800 Diamond Stealth 24
	  = T 132x25	 8x14 1056x350	 16/256K  .	.  Cirrus CL-GD5420/5422/5426
	  = T 132x43	 8x11	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = G  94x29	 8x14  752x410	  .	  .	.  Lava Chrome II EGA
	  = G 128x48	 8x16 1024x768	 16/256K  .   A000 ATI VGA Wonder v4+  [5]
	  = G    .	  .   1024x768	 16/256K  .	.  ATI VGA Wonder Plus
	  = G    .	  .   1024x768	 16/256K  .	.  ATI Ultra 8514A,ATI XL
	  = G 128x48	 8x16 1024x768	  4	  .   A000 Oak OTI-067/077 chips [8]
 56h = T 132x43	 8x8	  .	  3???	  2   B000 NSI Smart EGA+
	  = T 132x43	 7x9	  .	  4	  .   B000 Paradise VGA
	  = T 132x43	 8x9	  .	  4	  .   B000 Paradise VGA on multisync
	  = T 132x43	  .	  .	mono	  .	.  Taxan 565 EGA
	  = T 132x43	 7x9	  .	  2	  .	.  AT&T VDC600
	  = T 132x43	 9x8	  .	  .	  .	.  NEL Electronics BIOS
	  = T 132x50	 8x8	  .	  4	  .   A000 NCR 77C22 [9]
	  = T 132x60	 8x8	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = G    .	  .   1024x768	 16	  .   A000 Oak VGA
	  = G 128x48	 8x16 1024x768	 16	  .   A000 Oak OTI-067/077 chips [8]
 57h = T 132x25	 8x14	  .	  3???	  4   B000 NSI Smart EGA+
	  = T 132x25	 7x16	  .	  4	  .   B000 Paradise VGA
	  = T 132x25	 8x16	  .	  4	  .   B000 Paradise VGA on multisync
	  = T 132x25	 9x14	  .	  .	  .	.  NEL Electronics BIOS
	  = T 132x25	  .	  .	mono	  .	.  Taxan 565 EGA
	  = T 132x25	 7x16	  .	  2	  .	.  AT&T VDC600
	  = T 132x25	 9x14	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = T 132x25	 8x16	  .	  4	  .   A000 NCR 77C22 [9]
	  = G  96x48	 8x16  768x1024	 16	  .   A000 Oak OTI-067/077 chips [8]
 58h = T  80x33	 8x14	  .	 16	  .   B800 ATI EGA Wonder,ATI VIP
	  = T  80x32	 9x16	  .	 16	  .	.  Genoa 6400
	  = T  80x43	 8x8	  .	  .	  .	.  NEL Electronics BIOS
	  = T 132x30	 9x16	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = G 100x75	 8x8   800x600	 16/256K  .   A000 Paradise VGA
	  = G 100x75	 8x8   800x600	 16	  .	.  AT&T VDC600
	  = G 100x75	 8x8   800x600	 16	  .   A000 NCR 77C22 [9]
	  = G 100x75	 8x8   800x600	 16	  .	.  Diamond Speedstar 24X
	  = G 100x75	 8x8   800x600	 16/256K  .   A000 Paradise VGA, WD90C
	  = G    .	  .    800x600	 16	  .	.  AST VGA Plus, Compaq VGA
	  = G    .	  .    800x600	 16	  .	.  Dell VGA
	  = G    .	  .    800x600	 16	  .	.  Hewlett-Packard D1180A
	  = G    .	  .    800x600	???	  .	.  ELT VGA PLUS 16
	  = G 100x37	 8x16  800x600	 16/256K  .   A000 Cirrus CL-GD5420/5422/5426
	  = G 160x64	 8x16 1280x1024	 16	  .   A000 Oak OTI-077 chipset [8]
 59h = T  80x43	 9x8	  .	  .	  .	.  NEL Electronics BIOS
	  = T  80x66	 8x8	  .	 16/256K  .   A000 ATI VIP
	  = T 132x43	 9x11	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = G 100x75	 8x8   800x600	  2	  .   A000 Paradise VGA
	  = G 100x75	 8x8   800x600	  2	  .	.  AT&T VDC600
	  = G    .	  .    800x600	  2	  .	.  AST VGA Plus, Compaq VGA
	  = G    .	  .    800x600	  2	  .	.  Dell VGA
	  = G    .	  .    800x600	  2	  .	.  Hewlett-Packard D1180A
	  = G 100x75	 8x8   800x600	  2	  .   A000 NCR 77C22 [9]
	  = G 128x48	 8x16 1024x768	256	  .   A000 Oak OTI-077 chipset [8]
 5Ah = T  80x60	 8x8	  .	  .	  .	.  NEL Electronics BIOS
	  = T 132x60	 9x8	  .	 16/256K  .   B800 Trident TVGA 8800/8900
	  = G 128x48	 8x16 1024x768	  2	  .   A000 NCR 77C22 [9]
 5Bh = T  80x30	 8x16	  .	  .	  .   B800 ATI VGA Wonder (undoc)
	  = G    .	  .    640x350	256	  .	.  Genoa 6400
	  = G  80x25	 8x16  640x400	 32K	  .   A000 Oak OTI-067/077 chips [8]
	  = G    .	  .    800x600	 16	  .	.  Maxxon, SEFCO TVGA, Imtec
	  = G 100x75	 8x8   800x600	 16/256K  .   A000 Trident TVGA 8800, 8900
	  = G    .	  .    800x600	???	  .	.  Vobis MVGA
	  = G 100x37	 8x16  800x600	  .	  .	.  NEL Electronics BIOS
	  = G 128x48	 8x16 1024x768	 16	  .   A000 NCR 77C22 [1,9]
 5Ch = T 100x37	 8x16	  .	  .	  .	.  NEL Electronics BIOS
	  = G    .	  .    640x400	256	  .	.  Logix, ATI Prism Elite
	  = G    .	  .    640x400	256	  .	.  Maxxon, SEFCO TVGA, Imtec
	  = G  80x25	 8x16  640x400	256/256K  .   A000 Zymos Poach, Hi Res 512
	  = G  80x25	 8x16  640x400	256/256K  .   A000 Trident TVGA 8800/8900
	  = G  80x30	 8x16  640x480	256	  .	.  Genoa 6400
	  = G  80x30	 8x16  640x480	 32K	  .   A000 Oak OTI-077 chipset [8]
	  = G 100x75	 8x8   800x600	256	  .   A000 NCR 77C22 [9]
	  = G 100x75	 8x8   800x600	256/256K  .   A000 WD90C
	  = G 100x75	 8x8   800x600	256/256K  .   A000 Diamond Speedstar 24X
	  = G 100x37	 8x16  800x600	256/256K  .   A000 Cirrus CL-GD5420/5422/5426
 5Dh = T 100x75	 8x8	  .	  .	  .	.  NEL Electronics BIOS
	  = G  80x25	 8x14  640x350	 64K	  .	.  STB Lightspeed ET4000/W32P
	  = G    .	  .    640x480	256	  .	.  Logix, ATI Prism Elite
	  = G    .	  .    640x480	256	  .	.  Maxxon, SEFCO TVGA, Imtec
	  = G  80x30	 8x16  640x480	256/256K  .   A000 Zymos Poach, Hi Res 512
	  = G  80x30	 8x16  640x480	256/256K  .   A000 Trident TVGA 8800 (512K)
	  = G 128x48	 8x16 1024x768	 16	  .   A000 NCR 77C22 [9]
	  = G 128x48	 8x16 1024x768	 16/256K  .   A000 WD90C
	  = G 128x48	 8x16 1024x768	 16	  .	.  Diamond Speedstar 24X
	  = G 128x48	 8x16 1024x768	 16/256K  .   A000 Cirrus CL-GD5420/5422/5426
 5Eh = G    .	  .    640x400	256	  .	.  Paradise VGA,VEGA VGA
	  = G    .	  .    640x400	256	  .	.  AST VGA Plus, NCR 77C22
	  = G    .	  .    640x400	256	  .	.  Compaq VGA, Dell VGA
	  = G  80x25	 8x16  640x400	256	  .	.  AT&T VDC600
	  = G  80x25	 8x16  640x400	256	  .   A000 NCR 77C22 [9]
	  = G  80x25	 8x16  640x400	256/256K  .   A000 WD90C
	  = G  80x25	 8x16  640x400	256/256K  .   A000 Diamond Speedstar 24X
	  = G    .	  .    800x600	 16	  .	.  Logix, ATI Prism Elite
	  = G 100x37	 8x16  800x600	 16	  .	.  NEL Electronics BIOS
	  = G 100x75	 8x8   800x600	256	  .	.  Genoa 6400
	  = G 100x75	 8x8   800x600	256/256K  .   A000 Zymos Poach, Trident 8900
	  = G 100x75	 8x8   800x600	256/256K  .   A000 Hi Res 512
 5Fh = G  80x25	 8x16  640x400	 64K	  .	.  STB Lightspeed ET4000/W32P
	  = G    .	  .    640x480	256	  .	.  Paradise VGA
	  = G    .	  .    640x480	256	  .	.  AST VGA Plus, NCR 77C22
	  = G    .	  .    640x480	256	  .	.  Compaq VGA, Dell VGA
	  = G    .	  .    640x480	256	  .	.  Hewlett-Packard D1180A
	  = G  80x30	 8x16  640x480	256	  .	.  AT&T VDC600 (512K)
	  = G  80x30	 8x16  640x480	256	  .   A000 NCR 77C22 [9]
	  = G  80x30	 8x16  640x480	256/256K  .   A000 WD90C
	  = G  80x30	 8x16  640x480	256/256K  .   A000 Diamond Speedstar 24X
	  = G  80x30	 8x16  640x480	256/256K  .   A000 Cirrus CL-GD5420/5422/5426
	  = G    .	  .   1024x768	 16	  .	.  Logix, ATI Prism Elite
	  = G    .	  .   1024x768	 16	  .	.  Maxxon, Imtec
	  = G 128x48	 8x16 1024x768	 16	  .	.  Genoa 6400
	  = G 128x48	 8x16 1024x768	 16/256K  .   A000 Zymos Poach, Hi Res 512
	  = G 128x48	 8x16 1024x768	 16/256K  .   A000 Trident TVGA 88/8900 512K
 60h = T 132x25	 8x14	  .	 16/64	  8   B800 Quadram Ultra VGA
	  = T 132x25	 8x14	  .	 16	  .	.  Genoa 6400
	  = T 132x25	 8x14	  .	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = T 132x25	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = T 132x25	  .	  .	 16	  .	.  Chips&Technologies chipset
	  = G  80x???  .    ???x400	  .	  .	.  Corona/Cordata BIOS 4.10+
	  = G  80x25	 8x16  640x400	256	  1   A000 Ahead A, Ahead B
	  = G    .	  .    752x410	  .	  .	.  VEGA VGA
	  = G    .	  .    752x410	 16	  .	.  Tatung VGA
	  = G    .	  .    752x410	 16	  .	.  Video7 V-RAM VGA
	  = G 128x48	 8x16 1024x768	  4/256K  .   A000 Trident TVGA 8900
	  = G 128x48	 8x16 1024x768	256/256K  .   A000 WD90C
	  = G 128x48	 8x16 1024x768	256/256K  .   A000 Diamond Speedstar 24X
	  = G 128x48	 8x16 1024x768	256/256K  .   A000 Cirrus CL-GD5420/5422/5426
 61h = T 132x29	 8x12	  .	 16/64	  8   B800 Quadram Ultra VGA
	  = T 132x29	 8x8	  .	 16	  .	.  Genoa 6400
	  = T 132x29	 8x8	  .	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = T 132x50	  .	  .	  .	  .	.  Cirrus 5320 chipset
	  = T 132x50	  .	  .	 16	  .	.  Chips&Technologies chipset
	  = G    .	  .    ???x400	  .	  .	.  Corona/Cordata BIOS 4.10+
	  = G  80x25	 8x16  640x400	256	  .   A000 ATI VGA Wonder,VGA Wonder+
	  = G  80x25	 8x16  640x400	256	  .   A000 ATI Ultra 8514A,ATI XL
	  = G  80x30	 8x16  640x480	256	  1   A000 Ahead A, Ahead B (512K)
	  = G    .	  .    720x540	  .	  .	.  VEGA VGA
	  = G    .	  .    720x540	 16	  .	.  Tatung VGA
	  = G    .	  .    720x540	 16	  .	.  Video7 V-RAM VGA
	  = G  96x64	 8x16  768x1024	 16/256K  .   A000 Trident TVGA 88/8900 512K
	  = G 128x48	 8x16 1024x768	256	  .   A000 NCR 77C22 [1,9]
 62h = T 132x32	 8x11	  .	 16/64	  6   B800 Quadram Ultra VGA
	  = T 132x32	 8x12	  .	 16	  .	.  Genoa 6400
	  = T 132x32	 8x11	  .	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    640x450	 16	  .	.  Cirrus 510/520 chipset
	  = G  80x30	 8x16  640x480	256	  .   A000 ATI VGA Wonder,VGA Wonder+
	  = G  80x30	 8x16  640x480	256	  .   A000 ATI Ultra 8514A,ATI XL
	  = G  80x30	 8x16  640x480	32K	  .   A000 WD90C
	  = G  80x30	 8x16  640x480	32K	  .   A000 Diamond Speedstar 24X
	  = G    .	  .    800x600	  .	  .	.  VEGA VGA
	  = G    .	  .    800x600	 16	  .	.  Tatung VGA
	  = G    .	  .    800x600	 16	  .	.  Video7 V-RAM VGA
	  = G 100x75	 8x8   800x600	256	  1   A000 Ahead A, Ahead B (512K)
	  = G 128x48	 8x16 1024x768	256/256K  .   A000 Trident TVGA 8900, Zymos
	  = G 128x48	 8x16 1024x768	256	  .   A000 NCR 77C22 [9]
 63h = T 132x44	 8x8	  .	 16/64	  5   B800 Quadram Ultra VGA
	  = T 132x44	 8x8	  .	 16	  .	.  Genoa 6400
	  = T 132x44	 8x8	  .	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    720x540	 16	  .	.  MORSE VGA
	  = G    .	  .    720x540	 16	  .	.  Cirrus 510/520 chipset
	  = G 100x42	 8x14  800x600	256	  .   A000 ATI VGA Wonder,VGA Wonder+
	  = G 100x42	 8x14  800x600	256	  .   A000 ATI Ultra 8514A,ATI XL
	  = G    .	  .    800x600	32K	  .   A000 WD90C
	  = G    .	  .    800x600	32K	  .   A000 Diamond Speedstar 24X
	  = G 128x48	 7x16 1024x768	256	  1   A000 Ahead B (1MB)
	  = G    .	  .   1024x768	  2	  .	.  Video7 V-RAM VGA
 64h = T 132x60	 8x8	  .	 16	  .	.  Genoa 6400
	  = G    .	  .    640x480	64K	  .   A000 Cirrus CL-GD 5422/5426
	  = G    .	  .    800x600	 16	  .	.  MORSE VGA
	  = G    .	  .    800x600	 16	  .	.  Cirrus 510/520 chipset
	  = G    .	  .    800x600	???	  .	.  SAMPO-Mira VGA
	  = G    .	  .   1024x768	  4	  .	.  Video7 V-RAM VGA
	  = G 128x48	 8x16 1024x768	256	  .   A000 ATI VGA Wonder Plus,ATI XL
	  = G 160x64	 8x16 1280x1024	 16/256K  .   A000 WD90C [1]
	  = G 160x64	 8x16 1280x1024	 16/256K  .   A000 Diamond Speedstar 24X [1]
 65h = G    .	  .    800x600	64K	  .   A000 Cirrus CL-GD 5422/5426
	  = G    .	  .   1024x768	 16	  .	.  Video7 V-RAM VGA
	  = G 128x48	 8x16 1024x768	 16	  .   A000 ATI VGA Wonder
 66h = T  80x50	 8x8   640x400	 16/256K  .   B800 WD90C
	  = T  80x50	 8x8	  .	 16	  .   B800 Diamond Speedstar 24X
	  = G    .	  .    640x400	256	  .	.  Tatung VGA
	  = G    .	  .    640x400	256	  .	.  Video7 V-RAM VGA
	  = G    .	  .    640x480	32K	  .   A000 Cirrus CL-GD 5422/5426
 67h = T  80x43	 8x8   640x344	 16/256K  .   B800 WD90C
	  = T  80x43	 8x8	  .	 16	  .   B800 Diamond Speedstar 24X
	  = G    .	  .    640x480	256	  .	.  Video7 V-RAM VGA
	  = G    .	  .    800x600	32K	  .   A000 Cirrus CL-GD 5422/5426
	  = G 128x48	 8x16 1024x768	  4	  .   A000 ATI VGA Wonder
	  = G 160x64	 8x16 1280x1024	 16	  .   A000 NCR 77C22 [1,9]
 69h = T 132x50	 8x8  1056x400	 16/256K  .   B800 WD90C
	  = T 132x50	 8x8	  .	 16	  .   B800 Diamond Speedstar 24X
	  = G    .	  .    720x540	256	  .	.  Video7 V-RAM VGA
 6Ah = G    .	  .    800x600	 16	  .   A000 VESA standard interface
	  = G 100x75	 8x8   800x600	 16	  .	.  Genoa 6400
	  = G 100x75	 8x8   800x600	 16	  .	.  Diamond Speedstar 24X
	  = G    .	  .    800x600	 16	  .   A000 Ahead A
	  = G 100x75	 8x8   800x600	 16	  1   A000 Ahead B (VESA) (see 71h)
	  = G    .	  .    800x600	 16	  .	.  Zymos Poach, Hi Res 512
	  = G    .	  .    800x600	 16	  .	.  Epson LT-386SX in CRT Mode
	  = G    .	  .    800x600	 16	  .	.  Compuadd 316SL in CRT Mode
	  = G 100x37	 8x16  800x600	 16/256K  .   A000 Cirrus CL-GD5420/5422/5426
	  = G 100x42	 8x14  800x600	  .	  .   A000 ATI VGA Wonder (undoc)
	  = G    .	  .    800x600	 16	  .	.  Chips&Technologies chipset
	  = G 160x64	 8x16 1280x1024 256	  .   A000 NCR 77C22 [1,9]
 6Bh = T 100x37	 8x16	  .	 16	  .	.  Genoa 6400
	  = T 100x37	 8x16	  .	  .	  .	.  NEL Electronics BIOS
 6Ch = G  80x30	 8x16  640x480	 16M	  .   A000 Trident 8900CL/BIOS C04
	  = G 100x75	 8x8   800x600	256	  .	.  Genoa 6400
	  = G 160x60	 8x16 1280x960	 16/256K  .   A000 WD90C [1]
	  = G 160x60	 8x16 1280x960	 16/256K  .   A000 Diamond Speedstar 24X [1]
	  = G 160x64	 8x16 1280x1024	 16/256K  .   A000 Cirrus CL-GD 5422/5426 [1]
 6Dh = G  80x25	 8x14  640x350	 64K	  .	.  STB Lightspeed ET4000/W32P
	  = G 160x64	 8x16 1280x1024 256/256K  .   A000 Cirrus CL-GD 5422/5426 [1]
 6Eh = G  40x25	 8x8   320x200	 64K	  .   A000 Cirrus CL-GD 5422/5426
 6Fh = G  40x25	 8x8   320x200	 16M	  .   A000 Cirrus CL-GD 5422/5426
 70h =	extended mode set (see AX=0070h)	.  Everex Micro Enhancer EGA
	  = T  40x25	 8x8	  .	 16	  8   B800 Quadram (CGA double scan)
	  = T  40x25	 8x8   (CGA dblscan)	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    360x480	256	  .	.  Cirrus 510/520/5320 chips
	  = G  90x28	 8x14  720x392	 16	  1   A000 Ahead B
	  = G    .	  .    800x600	 16	  .	.  C&T chipset, Cardinal
	  = G    .	  .   1024x480	256	  .	.  Trident 8900C BIOS C3.0
 71h = T  80x25	 8x8	  .	 16	  8   B800 Quadram (CGA double scan)
	  = T  80x25	 8x8   (CGA dblscan)	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    528x400	256	  .	.  Cirrus 510/520 chipset
	  = G  80x30	 8x16  640x480	 16M	  .   A000 Cirrus CL-GD 5422/5426
	  = G 100x35	 8x16  800x600	 16/64	  .   A000 NSI Smart EGA+
	  = G 100x75	 8x8   800x600	 16	  1   A000 Ahead B (same as 6Ah)
	  = G    .	  .    960x720	 16	  .	.  C&T chipset, Cardinal
	  = G    .	  .   1024x480	256	  .	.  Trident 8900C BIOS C3.0
 72h = T  80x60	 8x8	  .	 16	  .   B800 Quadram Ultra VGA
	  = T  80x60	 8x8	  .	 16	  .   B800 Genoa 6400
	  = T  80x60	 8x8	  .	 16	  .   B800 Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    528x480	256	  .	.  Cirrus 510/520 chipset
	  = G  80x25	 8x19  640x480	 16	  1   A000 DOS/V w/ any VGA
	  = G    .	  .    640x480	32K	  .   A000 ATI
	  = G    .	  .    640x480	16M	  .   A000 WD90C
	  = G    .	  .    640x480	16M	  .   A000 Diamond Speedstar 24X
	  = G    .	  .   1024x768	 16	  .	.  C&T chipset, Cardinal
 73h = G  80x60	 8x8   640x480	 16	  .   A000 Quadram Ultra VGA
	  = G  80x60	 8x8   640x480	 16	  .	.  Genoa 6400
	  = G  80x60	 8x8   640x480	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = T  80x25	 8x19  640x475	 16	  1   none DOS/V, emulated in VGA graph
 74h = T  80x66	 8x8	  .	 16	  .   B800 Quadram Ultra VGA
	  = T  80x66	 8x8	  .	 16	  .   B800 Genoa 6400
	  = T  80x66	 8x8	  .	 16	  .   B800 Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    640x400	  2	  .   B800 Toshiba 3100 AT&T mode
	  = G  80x30	 8x16  640x480	 32K	  .   A000 Trident 8900C/BIOS C03
	  = G 128x48	 8x16 1024x768	 16	  1   A000 Ahead A, Ahead B (512K)
	  = G    .	  .   1024x768	 64K	  .   A000 Cirrus CL-GD 5422/5426 [1]
 75h = G  80x30	 8x16  640x480	 64K	  .   A000 Trident 8900C/BIOS C03
	  = G  80x66	  .    640x528	 16???	  .   A000 Quadram Ultra VGA
	  = G  80x66	  .    640x528	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G 128x48	 8x16 1024x768	  4	  1   A000 Ahead B
 76h = T  94x29	 8x14	  .	 16	  .   B800 Quadram Ultra VGA
	  = T  94x29	 8x14	  .	  .	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G 100x75	 8x8   800x600	 32K	  .   A000 Trident 8900C/BIOS C03
	  = G 128x48	 8x16 1024x768	  2	  1   A000 Ahead B
 77h = G  94x29	  .    752x410	 16???	  .   A000 Quadram Ultra VGA
	  = G  94x29	  .    752x410	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G 100x75	 8x8   800x600	 64K	  .   A000 Trident 8900C/BIOS C03
 78h = T 100x37	 8x16	  .	 16	  .	.  Genoa 6400
	  = T 100x75	 8x8	  .	 16	  .   B800 Quadram Ultra VGA
	  = T 100x75	 8x8	  .	  .	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    640x400	256	  .	.  STB VGA/EM-16 Plus
	  = G    .	  .    640x400	256	  .	.  Cardinal, C&T chipset
	  = G    .	  .    640x400	256	  .	.  Cirrus 5320 chipset
 79h = G    .	  .    640x480	256	  .	.  Cardinal, C&T chipset
	  = G 100x75	  .    800x600	 16???	  .   A000 Quadram Ultra VGA
	  = G 100x75	 8x8   800x600	 16	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G 100x75	 8x8   800x600	 16	  .	.  Genoa 6400
 7Ah = T 114x60	 8x8	  .	 16	  .   B800 Quadram Ultra VGA
	  = T 114x60	 8x8	  .	  .	  .	.  Genoa SuperEGA BIOS 3.0+
	  = G    .	  .    720x540	256	  .	.  C&T chipset, Cardinal
 7Bh = G    .	  .    800x600	256	  .	.  C&T chipset, Cardinal
	  = G 114x60	  .    912x480	 16???	  .   A000 Quadram Ultra VGA
	  = G    .	  .    912x480	 16	  .	.  Genoa SuperEGA BIOS 3.0+
 7Ch = G    .	  .    512x512	 16	  .	.  Genoa
	  = G    .	  .    800x600	256	  .	.  C&T 82C453 chipset
 7Dh = G  64x32	 8x16  512x512	256	  .	.  Genoa
 7Eh =	special mode set (see AX=007Eh)		.  Paradise VGA, AT&T VDC600
	  = G  80x25	 8x16  640x400	256	  .	.  Genoa 6400
	  = G    .	  .   1024x768	256	  .	.  C&T 82C453 chipset
	  = G  90x43	  .	  .	mono	  .   B000 HERCULES.COM on HGC [14]
 7Fh =	special function set (see AX=007Fh)	.  Paradise VGA, AT&T VDC600
	  = G 128x48	 8x16 1024x768	  4	  .	.  Genoa 6400
	  = G  90x29	  .	  .	mono	  .   B000 HERCULES.COM on HGC [14]
 82h = T  80x25	  .	  .	B&W	  .	.  AT&T VDC overlay mode [6]
 83h = T  80x25	  .	  .	  .	  .	.  AT&T VDC overlay mode [6]
 86h = G    .	  .    640x200	B&W	  .	.  AT&T VDC overlay mode [6]
 88h = G  90x43	 8x8   720x348	mono	  .   B000 Hercules + MSHERC.COM
 C0h = G    .	  .    640x400	2/prog palette	.  AT&T VDC overlay mode [6]
	  = G    .	  .    640x400	2/prog palette	.  Olivetti Quaderno overlay
 C4h =	disable output	  .	  .	  .	.  AT&T VDC overlay mode [6]
 C8h = G  80x50	 8x8   640x400	  2	  .   B800 Olivetti Quaderno overlay
 D0h = G    .	  .    640x400	  2	  .   B800 DEC VAXmate AT&T mode
Notes:
[1] interlaced only
[2] for ATI EGA Wonder, mode 08h is only valid if SMS.COM is loaded resident.
		SMS maps mode 08h to mode 27h if the byte at location 0040:0063 is 0B4h,
		otherwise to mode 23h, thus selecting the appropriate (monochrome or
		color) 132x25 character mode.
	 for ATI VGA Wonder, mode 08h is the same, and only valid if VCONFIG loaded
		resident
[3] early XGA boards support 132-column text but do not have this BIOS mode
[4] DESQview intercepts calls to change into these two modes (21h is page 0,
		22h is page 1) even if there is no Hercules graphics board installed
[5] ATI BIOS v4-1.00 has a text-scrolling bug in this mode
[6] for AT&T VDC overlay modes, BL contains the DEB mode, which may be 06h,
		40h, or 44h
[7] BIOS text support is broken in this undocumented mode; scrolling moves only
		about 1/3 of the screen (and does even that portion incorrectly), while
		screen clears only clear about 3/4.
[8] The Oak OTI-037/067/077 modes are present in the Oak VGA BIOS, which OEMs
		may choose to use only partially or not at all; thus, not all Oak boards
		support all "Oak" modes listed here
[9] this card uses the full 128K A000h-BFFFh range for the video buffer,
		precluding the use of a monochrome adapter in the same system
[10] mode 17h supported by Tseng ET4000 BIOS 8.01X dated 09/14/90, but not
		v8.01X dated 02/28/92; mode 21h supported by 02/28/92 version but not
		09/14/90 version
[11] HERKULES simulates a 90x45 text mode in Hercules graphics mode; the
		installation check for HERKULES.COM is the signature "Herkules" two bytes
		beyond the INT 10 handler
[12] The Realtek RTVGA BIOS v3.C10 crashes when attempting to switch into modes
		21h or 27h; this version of the BIOS also sets the BIOS data area
		incorrectly for extended text modes, resulting in scrolling after only
		24 lines (the VMODE.EXE	utility does set the data area correctly)
[13] The Tandy 1000SL/TL BIOS does not actually support this mode
[14] HERCULES.COM is a graphics-mode BIOS extension for Hercules-compatible
		graphics cards by Soft Warehouse, Inc.  Its installation check is to
		test whether the word preceding the INT 10 handler is 4137h.
Index:	video modes
Index:	installation check;HERKULES|installation check;HERCULES.COM
--------V-100070-----------------------------
INT 10 - VIDEO - Everex Micro Enhancer EGA/Viewpoint VGA - EXTENDED MODE SET
	AX = 0070h
	BL = mode (see #0010)
Desc:	specify a proprietary display mode on the Everex Micro Enhancer or
	  Viewpoint video adapters
SeeAlso: AH=00h,AX=6F05h,AX=7000h/BX=0004h,AH=FFh"GO32"

(Table 0010)
Values for Everex video mode:
	  text/ text pixel	pixel	colors disply scrn monitor    adapter
	  grph resol	 box  resolution       pages  addr
 00h = G    .	  .    640x480	 16	  .	.  multisync  EGA,VGA
 01h = G    .	  .    752x410	 16	  .	.  multisync  EGA,VGA
 02h = G    .	  .    800x600	 16	  .	.  multisync  EGA,VGA
 03h = T  80x34	  .	  .	  .	  .	.  multisync  EGA,VGA
 04h = T  80x60	  .	  .	  .	  .	.  multisync  EGA,VGA
 05h = T  94x29	  .	  .	  .	  .	.  multisync  EGA only
 06h = T  94x51	  .	  .	  .	  .	.  multisync  EGA only
 07h = T 100x43	 8x14	  .	 16	  .	.  .	      VGA only
 08h = T 100x75	 8x8	  .	 16	  .	.  .	      VGA only
 09h = T  80x44	  .	  .	  .	  .	.  EGA	      EGA only
 0Ah = T 132x25	  .	  .	  .	  .	.  EGA	      EGA,VGA
 0Bh = T 132x44	  .	  .	  .	  .	.  EGA	      EGA,VGA
 0Ch = T 132x25	  .	  .	  .	  .	.  CGA	      EGA only
 0Dh = T  80x44	  .	  .	  .	  .	.  mono	      EGA only
 0Eh = T 132x25	  .	  .	  .	  .	.  mono
 0Fh = T 132x44	  .	  .	  .	  .	.  mono
 10h =	reserved
 11h = G    .	  .   1280x350	  4	  .	.  .	      EGA only
 12h = G    .	  .   1280x600	  4	  .	.  .	      EGA only
 13h = G    .	  .    640x350	256	  .	.  .	      EGA,EV673
 14h = G    .	  .    640x400	256	  .	.  .
 15h = G    .	  .    512x480	256	  .	.  .
 16h = T  80x30	 8x16	  .	256	  .	.  .	      VGA only
 18h = T 100x27	 8x16	  .	 16	  .	.  .	      VGA only
 20h = G    .	  .   1024x768	 16	  .	.  .	      Everex 629,678
		 .	  .	  .	  .	  .	.  .	      Everex EV-673
 21h = T 160x64	 8x16 1280x1024	 16	  .	.  .	      1MB VGA only
 30h = G    .	  .    640x480	256	  .	.  .	      Everex 629,678
		 .	  .	  .	  .	  .	.  .	      Everex EV-673
 31h = G    .	  .    800x600	256	  .	.  .	      Everex 629,678
		 .	  .	  .	  .	  .	.  .	      Everex EV-673
 32h = G 128x48	 8x16 1024x768	256	  .	.  .	      1MB VGA only
 40h = T 132x30	 8x16	  .	 16	  .	.  .	      VGA only
 50h = T 132x32	 8x16	  .	mono	  .	.  .	      VGA only
 62h = G  40x25	 8x8   320x200	32K	  .	.  .	      Vwpt TC (EV629)
 70h = G  64x30	 8x16  512x480	32K	  .	.  .	      Viewpoint TC
 71h = G  80x30	 8x16  640x480	32K	  .	.  .	      Viewpoint TC
 76h = G  64x30	 8x16  512x480	16M	  .	.  .	      Viewpoint TC
 77h = G  80x30	 8x16  640x480	16M	  .	.  .	      Viewpoint TC
Index:	video modes;Everex
--------V-10007E-----------------------------
INT 10 - VIDEO - Paradise VGA, AT&T VDC600 - SET SPECIAL MODE
	AX = 007Eh
	BX = horizontal dimension of the mode desired
	CX = vertical dimension of the mode desired
		 (both BX/CX in pixels for graphics modes, rows for alpha modes)
	DX = number of colors of the mode desired (0000h for monochrome modes)
Return: BH = 7Eh if successful (Paradise VGA)
	AL = 7Eh if successful (AT&T VDC600)
Desc:	specify a display mode by resolution rather than mode number
SeeAlso: AH=00h,AX=0070h,AX=007Fh,AX=6F05h,AH=FFh"GO32"
Index:	video modes;Paradise|video modes;AT&T
--------V-10007FBH00-------------------------
INT 10 - VIDEO - Paradise VGA, AT&T VDC600 - SET VGA OPERATION
	AX = 007Fh
	BH = 00h
Return: AL = 7Fh if successful (AT&T VDC600)
	BH = status (Paradise/Dell)
		 00h invalid function
		 7Fh successful
SeeAlso: AX=007Fh/BH=01h,AX=007Fh/BH=02h
--------V-10007FBH01-------------------------
INT 10 - VIDEO - Paradise VGA, AT&T VDC600 - SET NON-VGA OPERATION
	AX = 007Fh
	BH = 01h
Return: AL = 7Fh if successful (AT&T VDC600)
	BH = status (Paradise/Dell)
		 00h invalid function
		 7Fh successful
Note:	color modes (0,1,2,3,4,5,6) will set non-VGA CGA operation, monochrome
	  mode 7 will set non-VGA MDA/Hercules operation
SeeAlso: AX=007Fh/BH=00h,AX=007Fh/BH=02h
--------V-10007FBH02-------------------------
INT 10 - VIDEO - Paradise VGA, AT&T VDC600 - QUERY MODE STATUS
	AX = 007Fh
	BH = 02h
Return: AL = 7Fh if successful (AT&T VDC600)
	BH = status (Paradise/Dell)
		 00h invalid function
		 7Fh successful
	---if successful---
	BL = 00h if operating in VGA mode, 01h if non-VGA mode
	CH = total video RAM size in 64k byte units
	CL = video RAM used by the current mode
Note:	under Novell DOS 7 TaskMgr Multitasker, this call always returns 0K
	  video memory in BX
SeeAlso: AX=007Fh/BH=00h,AX=007Fh/BH=01h
--------V-10007F-----------------------------
INT 10 - VIDEO - Paradise VGA, AT&T VDC600 - EXTENDED FUNCTIONS
	AX = 007Fh
	BH = function
		 03h	 lock current mode
		allows current mode (VGA or non-VGA) to survive re-boot
		 04h	 enter MDA mode
		 05h	 enter CGA mode
		 06h	 enter monochrome VGA mode (also switches to video mode 7)
		 07h	 enter color VGA mode (also switches to video mode 3)
		 0Ah,0Bh,0Ch,0Dh,0Eh,0Fh  WRITE PARADISE REGISTERS 0,1,2,3,4,5
		(port 03CEh indices 0Ah,0Bh,0Ch,0Dh,0Eh,0Fh)
		BL = value to set in the paradise register
		 1Ah,1Bh,1Ch,1Dh,1Eh,1Fh READ PARADISE REGISTERS 0,1,2,3,4,5
		(port 03CEh indices 0Ah,0Bh,0Ch,0Dh,0Eh,0Fh)
		Return: BL = value of the paradise register
			BH = 7Fh if successful
		 29h-2Fh ??? (Paradise VGA for Dell, 7/24/91)
Return: AL = 7Fh if successful (AT&T VDC600)
	BH = status (Paradise/Dell)
		 00h invalid function
		 7Fh successful
Desc:	set emulation mode or access proprietary extended data registers
SeeAlso: AX=007Eh,AH=FF"Oak"
--------V-10007FBH60-------------------------
INT 10 - Paradise VGA - ???
	AX = 007Fh
	BH = 60h
	BL = ??? (00h-13h)
	???
Return: BH = status (00h failed or not supported, 7Fh successful)
	???
Note:	this function is supported by the 5/14/93 ROM for the Dell 486D
--------V-10007FBH61-------------------------
INT 10 - Paradise VGA - ???
	AX = 007Fh
	BH = 61h
	ES:DI -> buffer for list of ??? (see #0011)
Return: BH = status (00h failed or not supported, 7Fh successful)
	???
Note:	this function is supported by the 5/14/93 ROM for the Dell 486D

Format of Paradise VGA list entry:
Offset	Size	Description	(Table 0011)
 00h	BYTE	??? or 00h if end of list
 01h	BYTE	???
 02h	WORD	???
 04h	WORD	???
 06h	WORD	???
--------V-10007FBXA500-----------------------
INT 10 - Paradise VGA - ???
	AX = 007Fh
	BX = A500h
	???
Return: BH = status (00h failed or not supported, 7Fh successful)
	???
Note:	this function is supported by the 5/14/93 ROM for the Dell 486D
--------V-10007FBHA5-------------------------
INT 10 - Paradise VGA - ???
	AX = 007Fh
	BH = A5h
	BL = ???
		 bits 3-0: ??? (0-4)
		 bits 5,4: ???
	???
Return: BH = status (00h failed or not supported, 7Fh successful)
	???
Note:	this function is supported by the 5/14/93 ROM for the Dell 486D
--------V-10007FBHA6-------------------------
INT 10 - Paradise VGA - ???
	AX = 007Fh
	BH = A6h
	???
Return: BH = status (00h failed or not supported, 7Fh successful)
	???
Note:	this function is supported by the 5/14/93 ROM for the Dell 486D
--------V-1001-------------------------------
INT 10 - VIDEO - SET TEXT-MODE CURSOR SHAPE
	AH = 01h
	CH = cursor start and options (see #0012)
	CL = bottom scan line containing cursor (bits 0-4)
Desc:	specify the starting and ending scan lines to be occupied by the
	  hardware cursor in text modes
Notes:	buggy on EGA systems--BIOS remaps cursor shape in 43 line modes, but
	  returns unmapped cursor shape
	UltraVision scales size to the current font height by assuming 14-line
	  monochrome and 8-line color fonts; this call is not valid if cursor
	  emulation has been disabled
	applications which wish to change the cursor by programming the
	  hardware directly on EGA or above should call INT 10/AX=1130h or
	  read 0040h:0085h first to determine the current font height
	on some adapters, setting the end line greater than the number of lines
	  in the font will result in the cursor extending to the top of the
	  next character cell on the right
BUG:	AMI 386 BIOS and AST Premier 386 BIOS will lock up the system if AL
	  is not equal to the current video mode
SeeAlso: AH=03h,AX=CD05h,AH=12h/BL=34h,#2469

Bitfields for cursor start and options:
Bit(s)	Description	(Table 0012)
 7	should be zero
 6,5	cursor blink
	(00=normal, 01=invisible, 10=erratic, 11=slow)
	(00=normal, other=invisible on EGA/VGA)
 4-0	topmost scan line containing cursor
--------V-1002-------------------------------
INT 10 - VIDEO - SET CURSOR POSITION
	AH = 02h
	BH = page number
		 0-3 in modes 2&3
		 0-7 in modes 0&1
		 0 in graphics modes
	DH = row (00h is top)
	DL = column (00h is left)
SeeAlso: AH=03h,AH=05h,INT 60/DI=030Bh
--------V-1003-------------------------------
INT 10 - VIDEO - GET CURSOR POSITION AND SIZE
	AH = 03h
	BH = page number
		 0-3 in modes 2&3
		 0-7 in modes 0&1
		 0 in graphics modes
Return: AX = 0000h (Phoenix BIOS)
	CH = start scan line
	CL = end scan line
	DH = row (00h is top)
	DL = column (00h is left)
Notes:	a separate cursor is maintained for each of up to 8 display pages
	many ROM BIOSes incorrectly return the default size for a color display
	  (start 06h, end 07h) when a monochrome display is attached
SeeAlso: AH=01h,AH=02h,AH=12h/BL=34h
--------V-1004-------------------------------
INT 10 - VIDEO - READ LIGHT PEN POSITION (except VGA)
	AH = 04h
Return: AH = light pen trigger flag
		 00h not down/triggered
		 01h down/triggered
		DH,DL = row,column of character light pen is on
		CH = pixel row (graphics modes 04h-06h)
		CX = pixel row (graphics modes with >200 rows)
		BX = pixel column
Desc:	determine the current position and status of the light pen (if
	  present)
Notes:	on a CGA, returned column numbers are always multiples of 2 (320-
	  column modes) or 4 (640-column modes)
	returned row numbers are only accurate to two lines
--------V-1004------------------------------------
INT 10 - HUNTER 16 - GET CURSOR ADDRESS
	AH = 04h
	BH = page
Return: DH = row (0..24)
	DL = column (0..79)
	CH = cursor pixel Y-address (0..199)
	CL = cursor pixel X-address (0..639)
Notes:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
	pixel coordinates are for the lower left corner of the character cell
	  containing the cursor
SeeAlso: AH=60h"HUNTER"
--------V-1005-------------------------------
INT 10 - VIDEO -  SELECT ACTIVE DISPLAY PAGE
	AH = 05h
	AL = new page number (00h to number of pages - 1) (see #0009)
Desc:	specify which of possibly multiple display pages will be visible
Note:	to determine whether the requested page actually exists, use AH=0Fh
	  to query the current page after making this call
SeeAlso: AH=0Fh,AH=43h,AH=45h
--------V-1005-------------------------------
INT 10 - VIDEO - PCjr, Tandy 1000 - MANIPULATE CRT/CPU PAGE REGISTERS
	AH = 05h
	AL = subfunction
		 80h read CRT and CPU page registers
		Return: BH = CRT page register
			BL = CPU page register
		 81h set CPU page register
		BL = CPU page
		 82h set CRT page register
		BH = CRT page
		 83h set both CPU and CRT page registers
		BL = CPU page
		BH = CRT page
Notes:	the CPU page determines which 16K block of the first 128K of physical
	  memory will be mapped at B800h by the hardware
	the CRT page determines the start address of the memory used by the
	  video controller
--------V-1005-------------------------------
INT 10 - VIDEO - Corona/Cordata BIOS v4.10+ - GRAPHICS BITMAP BUFFER
	AH = 05h
	AL = function
		 00h set address of graphics bitmap buffer (video modes 60h,61h)
		BX = segment of buffer
		 0Fh get address of graphics bitmap buffer (video modes 60h,61h)
		Return: DX = segment of graphics bitmap buffer
--------V-1006-------------------------------
INT 10 - VIDEO - SCROLL UP WINDOW
	AH = 06h
	AL = number of lines by which to scroll up (00h = clear entire window)
	BH = attribute used to write blank lines at bottom of window
	CH,CL = row,column of window's upper left corner
	DH,DL = row,column of window's lower right corner
Note:	affects only the currently active page (see AH=05h)
BUGS:	some implementations (including the original IBM PC) have a bug which
	  destroys BP
	the Trident TVGA8900CL (BIOS dated 9/8/92) clears DS to 0000h when
	  scrolling in an SVGA mode (800x600 or higher)
SeeAlso: AH=07h,AH=72h,AH=73h,AX=7F07h,INT 50/AX=0014h
--------V-1007-------------------------------
INT 10 - VIDEO - SCROLL DOWN WINDOW
	AH = 07h
	AL = number of lines by which to scroll down (00h=clear entire window)
	BH = attribute used to write blank lines at top of window
	CH,CL = row,column of window's upper left corner
	DH,DL = row,column of window's lower right corner
Note:	affects only the currently active page (see AH=05h)
BUGS:	some implementations (including the original IBM PC) have a bug which
	  destroys BP
	the Trident TVGA8900CL (BIOS dated 9/8/92) clears DS to 0000h when
	  scrolling in an SVGA mode (800x600 or higher)
SeeAlso: AH=06h,AH=72h,AH=73h,INT 50/AX=0014h
--------V-1008-------------------------------
INT 10 - VIDEO - READ CHARACTER AND ATTRIBUTE AT CURSOR POSITION
	AH = 08h
	BH = page number (00h to number of pages - 1) (see #0009)
Return: AH = character's attribute (text mode only) (see #0013)
	AL = character
Notes:	for monochrome displays, a foreground of 1 with background 0 is
	  underlined
	the blink bit may be reprogrammed to enable intense background colors
	  using AX=1003h or by programming the CRT controller
	the foreground intensity bit (3) can be programmed to switch between
	  character sets A and B on EGA and VGA cards, thus enabling 512
	  simultaneous characters on screen.  In this case the bit's usual
	  function (intensity) is regularly turned off.
	in graphics modes, only characters drawn with white foreground pixels
	  are matched by the pattern-comparison routine
SeeAlso: AH=09h,AX=1003h,AX=1103h,AH=12h/BL=37h,AX=5001h

Bitfields for character's display attribute:
Bit(s)	Description	(Table 0013)
 7	foreground blink or (alternate) background bright (see also AX=1003h)
 6-4	background color (see #0014)
 3	foreground bright or (alternate) alternate character set (see AX=1103h)
 2-0	foreground color (see #0014)
SeeAlso: #0025

(Table 0014)
Values for character color:
	Normal		Bright
 000b	black		dark gray
 001b	blue		light blue
 010b	green		light green
 011b	cyan		light cyan
 100b	red		light red
 101b	magenta		light magenta
 110b	brown		yellow
 111b	light gray	white
--------V-1009-------------------------------
INT 10 - VIDEO - WRITE CHARACTER AND ATTRIBUTE AT CURSOR POSITION
	AH = 09h
	AL = character to display
	BH = page number (00h to number of pages - 1) (see #0009)
		 background color in 256-color graphics modes (ET4000)
	BL = attribute (text mode) or color (graphics mode)
		 if bit 7 set in <256-color graphics="" mode,="" character="" is="" xor'ed="" onto="" screen="" cx="number" of="" times="" to="" write="" character="" notes:="" all="" characters="" are="" displayed,="" including="" cr,="" lf,="" and="" bs="" replication="" count="" in="" cx="" may="" produce="" an="" unpredictable="" result="" in="" graphics="" modes="" if="" it="" is="" greater="" than="" the="" number="" of="" positions="" remaining="" in="" the="" current="" row="" seealso:="" ah="08h,AH=0Ah,AH=4Bh" grafix",int"="" 17/ah="60h,INT" 1f,int="" 43,int="" 44="" --------v-100a-------------------------------="" int="" 10="" -="" video="" -="" write="" character="" only="" at="" cursor="" position="" ah="0Ah" al="character" to="" display="" bh="page" number="" (00h="" to="" number="" of="" pages="" -="" 1)="" (see="" #0009)="" background="" color="" in="" 256-color="" graphics="" modes="" (et4000)="" bl="attribute" (pcjr,="" tandy="" 1000="" only)="" or="" color="" (graphics="" mode)="" if="" bit="" 7="" set="" in=""><256-color graphics="" mode,="" character="" is="" xor'ed="" onto="" screen="" cx="number" of="" times="" to="" write="" character="" notes:="" all="" characters="" are="" displayed,="" including="" cr,="" lf,="" and="" bs="" replication="" count="" in="" cx="" may="" produce="" an="" unpredictable="" result="" in="" graphics="" modes="" if="" it="" is="" greater="" than="" the="" number="" of="" positions="" remaining="" in="" the="" current="" row="" seealso:="" ah="08h,AH=09h,AH=4Bh,INT" 17/ah="60h,INT" 1f,int="" 43,int="" 44="" --------v-100b--bh00-------------------------="" int="" 10="" -="" video="" -="" set="" background/border="" color="" ah="0Bh" bh="00h" bl="background/border" color="" (border="" only="" in="" text="" modes)="" seealso:="" ah="0Bh/BH=01h" --------v-100b--bh01-------------------------="" int="" 10="" -="" video="" -="" set="" palette="" ah="0BH" bh="01h" bl="palette" id="" 00h="" background,="" green,="" red,="" and="" brown/yellow="" 01h="" background,="" cyan,="" magenta,="" and="" white="" seealso:="" ah="0Bh/BH=00h" --------v-100c-------------------------------="" int="" 10="" -="" video="" -="" write="" graphics="" pixel="" ah="0Ch" bh="page" number="" al="pixel" color="" if="" bit="" 7="" set,="" value="" is="" xor'ed="" onto="" screen="" except="" in="" 256-color="" modes="" cx="column" dx="row" desc:="" set="" a="" single="" pixel="" on="" the="" display="" in="" graphics="" modes="" notes:="" valid="" only="" in="" graphics="" modes="" bh="" is="" ignored="" if="" the="" current="" video="" mode="" supports="" only="" one="" page="" seealso:="" ah="0Dh,AH=46h" --------v-100d-------------------------------="" int="" 10="" -="" video="" -="" read="" graphics="" pixel="" ah="0Dh" bh="page" number="" cx="column" dx="row" return:="" al="pixel" color="" desc:="" determine="" the="" current="" color="" of="" the="" specified="" pixel="" in="" grahics="" modes="" notes:="" valid="" only="" in="" graphics="" modes="" bh="" is="" ignored="" if="" the="" current="" video="" mode="" supports="" only="" one="" page="" seealso:="" ah="0Ch,AH=47h" --------v-100e-------------------------------="" int="" 10="" -="" video="" -="" teletype="" output="" ah="0Eh" al="character" to="" write="" bh="page" number="" bl="foreground" color="" (graphics="" modes="" only)="" desc:="" display="" a="" character="" on="" the="" screen,="" advancing="" the="" cursor="" and="" scrolling="" the="" screen="" as="" necessary="" notes:="" characters="" 07h="" (bel),="" 08h="" (bs),="" 0ah="" (lf),="" and="" 0dh="" (cr)="" are="" interpreted="" and="" do="" the="" expected="" things="" ibm="" pc="" roms="" dated="" 4/24/81="" and="" 10/19/81="" require="" that="" bh="" be="" the="" same="" as="" the="" current="" active="" page="" seealso:="" ah="02h,AH=0Ah" --------u-100e--cxabcd-----------------------="" int="" 10="" -="" v20-xt-bios="" -="" teletype="" output="" with="" attribute="" ah="0Eh" cx="ABCDh" bp="ABCDh" al="character" to="" write="" bh="page" number="" bl="foreground" color="" (text="" modes="" as="" well="" as="" graphics="" modes)="" program:="" v20-xt-bios="" is="" a="" bios="" extension="" by="" peter="" koehlmann="" c't="" magazine="" desc:="" display="" a="" character="" on="" the="" screen,="" advancing="" the="" cursor="" and="" scrolling="" the="" screen="" as="" necessary="" notes:="" characters="" 07h="" (bel),="" 08h="" (bs),="" 0ah="" (lf),="" and="" 0dh="" (cr)="" are="" interpreted="" and="" do="" the="" expected="" things="" seealso:="" int="" 15/ah="84h" v20-xt-bios""="" --------v-100f-------------------------------="" int="" 10="" -="" video="" -="" get="" current="" video="" mode="" ah="0Fh" return:="" ah="number" of="" character="" columns="" al="display" mode="" (see="" #0009="" at="" ah="00h)" bh="active" page="" (see="" ah="05h)" notes:="" if="" mode="" was="" set="" with="" bit="" 7="" set="" ("no="" blanking"),="" the="" returned="" mode="" will="" also="" have="" bit="" 7="" set="" ega,="" vga,="" and="" ultravision="" return="" either="" al="03h" (color)="" or="" al="07h" (monochrome)="" in="" all="" extended-row="" text="" modes="" hp="" 200lx="" returns="" al="07h" (monochrome)="" if="" mode="" was="" set="" to="" al="21h" and="" always="" 80="" resp.="" 40="" columns="" in="" all="" text="" modes="" regardless="" of="" current="" zoom="" setting="" (see="" ah="D0h)" when="" using="" a="" hercules="" graphics="" card,="" additional="" checks="" are="" necessary:="" mode="" 05h:="" if="" word="" 0040h:0063h="" is="" 03b4h,="" may="" be="" in="" graphics="" page="" 1="" (as="" set="" by="" dosshell="" and="" other="" microsoft="" software)="" mode="" 06h:="" if="" word="" 0040h:0063h="" is="" 03b4h,="" may="" be="" in="" graphics="" page="" 0="" (as="" set="" by="" dosshell="" and="" other="" microsoft="" software)="" mode="" 07h:="" if="" byte="" 0040h:0065h="" bit="" 1="" is="" set,="" hercules="" card="" is="" in="" graphics="" mode,="" with="" bit="" 7="" indicating="" the="" page="" (mode="" set="" by="" hercules="" driver="" for="" borland="" turbo="" c)="" seealso:="" ah="00h,AH=05h,AX=10F2h/BL=00h,AX=1130h,AX=CD04h" --------v-100f56bx4756-----------------------="" int="" 10="" -="" vuimage="" display="" driver="" (v2.20="" and="" below)="" ax="0F56h" bx="4756h" cx="4944h" dl="function" 01h="" installation="" check="" return:="" ax="5649h" bx="4443h" cx="5647h" dh="01h" 02h="" get="" first="" video="" mode's="" parameters="" return:="" ax="BIOS" mode="" number="" bx="width" in="" pixels="" cx="height" in="" pixels="" dx="number" of="" colors="" 03h="" get="" next="" video="" mode's="" parameters="" return:="" as="" for="" dl="02h" 04h="" display="" line???="" es:di="" -=""> record (see #0015)
		???
		Return: ???
Program: VUIMAGE is a shareware GIF/TIFF image viewer by Offe Enterprises
Note:	the use of TSR display drivers was discontinued after v2.20
Index:	installation check;VUIMAGE display driver

Format of record for VUIMAGE Function 04h:
Offset	Size	Description	(Table 0015)
 00h	WORD	row number
 02h	WORD	starting column???
 04h	WORD	ending column???
	???
--------V-100F--SIF123-----------------------
INT 10 - FRIEZE v7.41+ - INSTALLATION CHECK
	AH = 0Fh
	SI = F123h
	DI = 321Fh
Return: AH = number of character columns
	AL = display mode (see #0009 at AH=00h)
	BH = active page (see AH=05h)
	SI = DI = F345h if installed
Notes:	if mode was set with bit 7 set ("no blanking"), the returned mode will
	  also have bit 7 set
	EGA, VGA, and UltraVision return either AL=03h (color) or AL=07h
	  (monochrome) in all extended-row text modes
SeeAlso: AH=0Fh"VIDEO",AH=4Bh"FRIEZE"
--------V-1010-------------------------------
INT 10 - BIOS Window Extension v1.1 - SET WINDOW COORDINATES
	AH = 10h
	CH,CL = row,column of upper left corner of window
	DH,DL = row,column of lower right corner of window
Return: AL = status
	    00h successful
	    01h failed
	AH destroyed
Program: BWE is a TSR by John J. Seal published in May 1986 Dr. Dobb's Journal
Note:	when a window has been set, all output via AH=0Eh is restricted to
	  the specified window
SeeAlso: AH=11h"Window",AH=12h"Window"
--------V-1010-------------------------------
INT 10 - VIDEO - Eagle PC2 BIOS Rev. C - SET SCROLL SPEED
	AH = 10h
	AL = speed
	    00h fast
	    01h slow (scrolling only moves characters during vertical retrace)
Return: AH = previous speed
--------V-101000-----------------------------
INT 10 - VIDEO - SET SINGLE PALETTE REGISTER (PCjr,Tandy,EGA,MCGA,VGA)
	AX = 1000h
	BL = palette register number (00h-0Fh)
	   = attribute register number (undocumented) (see #0016)
	BH = color or attribute register value
Notes:	on MCGA, only BX = 0712h is supported
	under UltraVision, the palette locking status (see AX=CD01h)
	  determines the outcome
SeeAlso: AX=1002h,AX=1007h,AX=CD01h

(Table 0016)
Values for attribute register number:
 10h	attribute mode control register (should let BIOS control this)
 11h	overscan color register (see also AX=1001h)
 12h	color plane enable register (bits 3-0 enable corresponding
	  text attribute bit)
 13h	horizontal PEL panning register
 14h	color select register
--------V-101001-----------------------------
INT 10 - VIDEO - SET BORDER (OVERSCAN) COLOR (PCjr,Tandy,EGA,VGA)
	AX = 1001h
	BH = border color (00h-3Fh)
BUG:	the original IBM VGA BIOS incorrectly updates the parameter save area
	  and places the border color at offset 11h of the palette table
	  rather than offset 10h
Note:	under UltraVision, the palette locking status (see AX=CD01h)
	  determines the outcome
SeeAlso: AX=1002h,AX=1008h,AX=CD01h
--------V-101002-----------------------------
INT 10 - VIDEO - SET ALL PALETTE REGISTERS (PCjr,Tandy,EGA,VGA)
	AX = 1002h
	ES:DX -> palette register list (see #0017)
Note:	under UltraVision, the palette locking status (see AX=CD01h)
	  determines the outcome
SeeAlso: AX=1000h,AX=1001h,AX=1009h,AX=CD01h

Format of palette register list:
Offset	Size	Description	(Table 0017)
 00h 16 BYTEs	colors for palette registers 00h through 0Fh
 10h	BYTE	border color
--------V-101003-----------------------------
INT 10 - VIDEO - TOGGLE INTENSITY/BLINKING BIT (Jr, PS, TANDY 1000, EGA, VGA)
	AX = 1003h
	BL = new state
	    00h background intensity enabled
	    01h blink enabled
	BH = 00h to avoid problems on some adapters
Notes:	although there is no function to get the current status on adapters
	  prior to the VGA, bit 5 of 0040h:0065h indicates the state; on the
	  VGA, use AH=1Bh and check offset 2Dh of the returned data (see #0037)
	when configured for a monochrome display, the Boca Research Multi-EGA
	  with ROM v M1.1 Type D has its screen disrupted if BH is not clear
	this call is reported to be "Get Cursor Position" on the Tandy
	  1000SL/TL
SeeAlso: AH=08h,AH=1Bh
--------V-101007-----------------------------
INT 10 - VIDEO - GET INDIVIDUAL PALETTE REGISTER (VGA,UltraVision v2+)
	AX = 1007h
	BL = palette or attribute (undoc) register number (see #0016)
Return: BH = palette or attribute register value
Note:	UltraVision v2+ supports this function even on color EGA systems in
	  video modes 00h-03h, 10h, and 12h; direct programming of the palette
	  registers will cause incorrect results because the EGA registers are
	  write-only.  To guard against older versions or unsupported video
	  modes, programs which expect to use this function on EGA systems
	  should set BH to FFh on entry.
SeeAlso: AX=1000h,AX=1009h
--------V-101008-----------------------------
INT 10 - VIDEO - READ OVERSCAN (BORDER COLOR) REGISTER (VGA,UltraVision v2+)
	AX = 1008h
Return: BH = border color (00h-3Fh)
Note:	(see AX=1007h)
SeeAlso: AX=1001h
--------V-101009-----------------------------
INT 10 - VIDEO - READ ALL PALETTE REGISTERS AND OVERSCAN REGISTER (VGA)
	AX = 1009h
	ES:DX -> 17-byte buffer for palette register list (see #0017)
Note:	UltraVision v2+ supports this function even on color EGA systems in
	  video modes 00h-03h, 10h, and 12h; direct programming of the palette
	  registers will cause incorrect results because the EGA registers are
	  write-only.  To guard against older versions or unsupported video
	  modes, programs which expect to use this function on EGA systems
	  should set the ES:DX buffer to FFh before calling.
SeeAlso: AX=1002h,AX=1007h,AX=CD02h
--------V-101010-----------------------------
INT 10 - VIDEO - SET INDIVIDUAL DAC REGISTER (VGA/MCGA)
	AX = 1010h
	BX = register number
	CH = new value for green (0-63)
	CL = new value for blue (0-63)
	DH = new value for red (0-63)
SeeAlso: AX=1012h,AX=1015h
--------V-101012-----------------------------
INT 10 - VIDEO - SET BLOCK OF DAC REGISTERS (VGA/MCGA)
	AX = 1012h
	BX = starting color register
	CX = number of registers to set
	ES:DX -> table of 3*CX bytes where each 3 byte group represents one
		 byte each of red, green and blue (0-63)
SeeAlso: AX=1010h,AX=1017h,INT 62/AX=00A5h
--------V-101013-----------------------------
INT 10 - VIDEO - SELECT VIDEO DAC COLOR PAGE (VGA)
	AX = 1013h
	BL = subfunction
	    00h select paging mode
		BH = 00h select 4 blocks of 64
		BH = 01h select 16 blocks of 16
	    01h select page
		BH = page number (00h to 03h) or (00h to 0Fh)
Note:	this function is not valid in mode 13h
SeeAlso: AX=101Ah
--------V-101015-----------------------------
INT 10 - VIDEO - READ INDIVIDUAL DAC REGISTER (VGA/MCGA)
	AX = 1015h
	BL = palette register number
Return: DH = red value
	CH = green value
	CL = blue value
SeeAlso: AX=1010h,AX=1017h
--------V-101017-----------------------------
INT 10 - VIDEO - READ BLOCK OF DAC REGISTERS (VGA/MCGA)
	AX = 1017h
	BX = starting palette register
	CX = number of palette registers to read
	ES:DX -> buffer (3 * CX bytes in size) (see also AX=1012h)
Return: buffer filled with CX red, green and blue triples
SeeAlso: AX=1012h,AX=1015h,INT 62/AX=00A4h
--------V-101018-----------------------------
INT 10 U - VIDEO - SET PEL MASK (VGA/MCGA)
	AX = 1018h
	BL = new PEL value
SeeAlso: AX=1019h
--------V-101019-----------------------------
INT 10 U - VIDEO - READ PEL MASK (VGA/MCGA)
	AX = 1019h
Return: BL = value read
SeeAlso: AX=1018h
--------V-10101A-----------------------------
INT 10 - VIDEO - GET VIDEO DAC COLOR-PAGE STATE (VGA)
	AX = 101Ah
Return: BL = paging mode
	    00h four pages of 64
	    01h sixteen pages of 16
	BH = current page
SeeAlso: AX=1013h
--------V-10101B-----------------------------
INT 10 - VIDEO - PERFORM GRAY-SCALE SUMMING (VGA/MCGA)
	AX = 101Bh
	BX = starting palette register
	CX = number of registers to convert
Desc:	convert the RGB values of one or more palette registers such that the
	  resulting values are grays with the same intensities as the original
	  colors
SeeAlso: AH=12h/BL=33h
--------V-1010E0-----------------------------
INT 10 - VIDEO - Diamond Speedstar 24 - SET 24-BIT GRAPHICS MODE
	AX = 10E0h
	BL = video mode (see also #0009 at AH=00h)
	    2Eh = 640x480
Return: ???
SeeAlso: AH=00h,AX=10F0h
--------V-1010F0-----------------------------
INT 10 - VIDEO - Tseng ET-4000 BIOS - SET HiColor GRAPHICS MODE
	AX = 10F0h
	BL = video mode (see also #0009 at AH=00h)
	    13h = 320x200x32K
	    2Dh = 640x350x32K
	    2Eh = 640x480x32K
	    2Fh = 640x400x32K
	    30h = 800x600x32K
	    3Eh = 640x480x16M (Genoa 7900)
		 FFh Tseng 24-bit color mode
		BH = mode
		    2Dh = 640x480
		    2Eh = 640x480x16M
		    2Fh = 640x400
		    30h = 800x600
		    38h = 1024x768??? (Tseng ET4000/W32i)
Return: AL = 10h if supported
	AH = status
	    00h if successful
	    other on error
Desc:	switch the display into a graphics mode with 15 or more bits per pixel
Note:	the Tseng HiColor BIOS extensions are supported by:
	  Diamond Computer Systems	SpeedStar HiColor VGA
	  Everex Systems		HC VGA
	  Focus Information Systems	2theMax 4000
	  Cardinal Technologies		VGA732
	  Orchid ProDesigner IIs	Genoa 7900
SeeAlso: AH=00h,AX=10E0h,AX=10F1h,AX=10F2h
Index:	video modes;Tseng Hi-Color
--------V-1010F1-----------------------------
INT 10 - VIDEO - Tseng ET-4000 BIOS - GET DAC TYPE
	AX = 10F1h
Return: AL = 10h if supported
	BL = type of digital/analog converter (see #0018)
Desc:	determine which type of digital-to-analog converter is installed on the
	  display board
SeeAlso: AX=10F0h,AX=10F2h

(Table 0018)
Values for type of DAC:
 00h normal VGA DAC
 01h Sierra SC1148x HiColor DAC
 ---Diamond SpeedStar 24---
 02h new Sierra SS24 DAC (24-bit)
 ---generic Tseng BIOS v8+ ---
 02h Sierra Mark2 (15-bit) or Mark3 (15/16-bit) DAC
 03h ATT20c490/1/2 (15/16/24-bit)
 04h AcuMos ADAC1 (15/16/24-bit)
 05h unknown 15/16/24-bit DAC
 06h Cirrus Internal 15/16/24-bit (CL-GD54xx series adapters)
 07h Diamond SS2410 (15/24-bit)
 08h unknown 15/16/24-bit DAC
 09h unknown 15/16/24-bit DAC
 else other HiColor DAC
--------V-1010F2-----------------------------
INT 10 u - VIDEO - Tseng ET-4000 BIOS - CHECK IF HiColor MODE/SET HiColor MODE
	AX = 10F2h
	BL = function
	    00h get current HiColor mode
	    01h set 15-bit HiColor mode
	    02h set 16-bit HiColor mode
Return: AX = 0010h if supported
	BL = video mode type
	    00h not in HiColor mode
	    01h 15-bit RGB mode
	    02h 16-bit RGB mode
	    03h 24-bit RGB mode
Desc:	determine whether the display is in a graphics mode with 15 or more
	  bits per pixel color resolution
Note:	set (BL=01h/02h) only works if already in a HiColor mode
SeeAlso: AH=0Fh,AX=10F0h,AX=10F1h
--------V-1011-------------------------------
INT 10 - BIOS Window Extension v1.1 - GET WINDOW COORDINATES
	AH = 11h
Return: CH,CL = row,column of upper left corner
	DH,DL = row,column of lower right corner
Desc:	determine the portion of the display to which output is restricted
Program: BWE is a TSR by John J. Seal published in May 1986 Dr. Dobb's Journal
SeeAlso: AH=10h"Window",AH=12h"Window"
--------V-1011-------------------------------
INT 10 - VIDEO - TEXT-MODE CHARACTER GENERATOR FUNCTIONS (PS, EGA, VGA)
	AH = 11h
	The following functions will cause a mode set, completely resetting
	the video environment, but without clearing the video buffer
	AL = 00h, 10h: load user-specified patterns
	    ES:BP -> user table
	    CX	  = count of patterns to store
	    DX	  = character offset into map 2 block
	    BL	  = block to load in map 2
	    BH	  = number of bytes per character pattern
	AL = 01h, 11h: load ROM monochrome patterns (8 by 14)
	    BL	  = block to load
	AL = 02h, 12h: load ROM 8 by 8 double-dot patterns
	    BL	  = block to load
	AL = 03h: set block specifier (allows dual character sets on screen)
	    BL	  = block specifier (see #0019)
	AL = 04h, 14h: load ROM 8x16 character set (VGA)
	    BL	= block to load
Notes:	The routines called with AL=1xh are designed to be called only
	  immediately after a mode set and are similar to the routines called
	  with AL=0xh, except that:
			Page 0 must be active.
	      Bytes/character is recalculated.
	      Max character rows is recalculated.
	      CRT buffer length is recalculated.
	      CRTC registers are reprogrammed as follows:
		     R09 = bytes/char-1 ; max scan line (mode 7 only)
		     R0A = bytes/char-2 ; cursor start
		     R0B = 0		; cursor end
		     R12 = ((rows+1)*(bytes/char))-1 ; vertical display end
		     R14 = bytes/char	; underline loc
			   (*** BUG: should be 1 less ***)
	the current block specifiers may be determined with INT 10/AH=1Bh,
	  looking at offsets 2Bh and 2Ch of the returned data (VGA only)
	  (see AH=1Bh,#0037)
SeeAlso: AH=1Bh,AX=CD10h

Bitfields for block specifier:
Bit(s)	Description	(Table 0019)
---EGA/MCGA---
 0,1	block selected by characters with attribute bit 3 clear
 2,3	block selected by characters with attribute bit 3 set
---VGA---
 0,1,4	block selected by characters with attribute bit 3 clear
 2,3,5	block selected by characters with attribute bit 3 set
--------V-1011-------------------------------
INT 10 - VIDEO - Realtek RTVGA - TEXT-MODE CHARACTER GENERATOR FUNCTIONS
	AH = 11h
	AL = 07h load user-specified paterns and recalculate mode parms
		 parameters are the same as for AL = 10h
	AL = 08h load monochrome patterns (8x14) and recalculate mode parms
		 parameters are the same as for AL = 11h
	AL = 09h load ROM 8 by 8 double-dot patterns and recalculate mode parms
		 parameters are the same as for AL = 12h
	AL = 0Bh load ROM 8x16 character set (VGA) and recalculate mode parms
		 parameters are the same as for AL = 14h
Note:	these functions should only be called under the same conditions as
	  AL=1xh (see entry above)
SeeAlso: AH=11h
--------V-10110F-----------------------------
INT 10 - VIDEO - Realtek RTVGA - SET USER 8x8 GRAPHICS CHARACTERS
	AX = 110Fh
	ES:BP -> user table for INT 1F
Note:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
SeeAlso: AX=1110h,AX=1111h,AX=1112h,AX=1120h
--------V-101110-----------------------------
INT 10 - VIDEO - Realtek RTVGA - SET USER GRAPHICS CHARACTERS
	AX = 1110h
	ES:BP -> user table
	CX = bytes per character
	BL = row specifier
	    00h user set
		DL = number of rows
	    01h 14 rows
	    02h 25 rows
	    03h 43 rows
Note:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
SeeAlso: AX=110Fh,AX=1112h,AX=1121h
--------V-101111-----------------------------
INT 10 - VIDEO - Realtek RTVGA - SET ROM 8x14 GRAPHICS CHARACTERS
	AX = 1111h
	BL = row specifier (see AX=1121h)
Note:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
SeeAlso: AX=110Fh,AX=1110h,AX=1122h
--------V-101112-----------------------------
INT 10 - VIDEO - Realtek RTVGA - SET ROM 8x8 DOUBLE-DOT CHARACTERS
	AX = 1112h
	BL = row specifier (see AX=1121h)
Note:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
SeeAlso: AX=110Fh,AX=1110h,AX=1111h,AX=1123h
--------V-101120-----------------------------
INT 10 - VIDEO - GRAPH-MODE CHARGEN - SET USER 8x8 GRAPHICS CHARS (PS,EGA,VGA)
	AX = 1120h
	ES:BP -> user table for INT 1F
Note:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
SeeAlso: AX=1121h,AX=1122h,AX=1123h,AX=1124h,AX=1125h,INT 1F,INT 43
--------V-101121-----------------------------
INT 10 - VIDEO - GRAPH-MODE CHARGEN - SET USER GRAPHICS CHARACTERS (PS,EGA,VGA)
	AX = 1121h
	ES:BP -> user table
	CX = bytes per character
	BL = row specifier
	    00h user set
		DL = number of rows
	    01h 14 rows
	    02h 25 rows
	    03h 43 rows
Note:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
SeeAlso: AX=1120h,AX=1122h,AX=1123h,AX=1124h,AX=1129h,INT 1F,INT 43
--------V-101122-----------------------------
INT 10 - VIDEO - GRAPH-MODE CHARGEN - SET ROM 8x14 GRAPHICS CHARS (PS,EGA,VGA)
	AX = 1122h
	BL = row specifier (see AX=1121h)
Notes:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
	UltraVision v2+ sets INT 43 to the appropriate font on this call
SeeAlso: AX=1111h,AX=1120h,AX=1121h,AX=1123h,AX=1124h,AX=1129h,INT 1F,INT 43
--------V-101123-----------------------------
INT 10 - VIDEO - GRAPH-MODE CHARGEN - SET ROM 8x8 DOUBLE-DOT CHARS (PS,EGA,VGA)
	AX = 1123h
	BL = row specifier (see AX=1121h)
Notes:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
	UltraVision v2+ sets INT 43 to the appropriate font on this call
SeeAlso: AX=1112h,AX=1120h,AX=1121h,AX=1122h,AX=1124h,AX=1129h,INT 1F,INT 43
--------V-101124-----------------------------
INT 10 - VIDEO - GRAPH-MODE CHARGEN - LOAD 8x16 GRAPHICS CHARS (VGA,MCGA)
	AX = 1124h
	BL = row specifier (see AX=1121h)
Notes:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
	UltraVision v2+ sets INT 43 to the appropriate font on this call
SeeAlso: AX=1120h,AX=1121h,AX=1122h,AX=1123h,AX=1129h,INT 1F,INT 43
--------V-101129-----------------------------
INT 10 - VIDEO - GRAPH-MODE CHARGEN - LOAD 8x16 GRAPH CHARS (Compaq Systempro)
	AX = 1129h
	BL = row specifier (see AX=1121h)
Notes:	this function is meant to be called immediately after a mode set;
	  results are unpredictable at other times
	UltraVision v2+ sets INT 43 to the appropriate font on this call
SeeAlso: AX=1120h,AX=1121h,AX=1122h,AX=1123h,AX=1124h,INT 1F, INT 43
--------V-101130-----------------------------
INT 10 - VIDEO - GET FONT INFORMATION (EGA, MCGA, VGA)
	AX = 1130h
	BH = pointer specifier
	    00h INT 1Fh pointer
	    01h INT 43h pointer
	    02h ROM 8x14 character font pointer
	    03h ROM 8x8 double dot font pointer
	    04h ROM 8x8 double dot font (high 128 characters)
	    05h ROM alpha alternate (9 by 14) pointer (EGA,VGA)
	    06h ROM 8x16 font (MCGA, VGA)
	    07h ROM alternate 9x16 font (VGA only) (see #0020)
		 11h (UltraVision v2+) 8x20 font (VGA) or 8x19 font (autosync EGA)
	    12h (UltraVision v2+) 8x10 font (VGA) or 8x11 font (autosync EGA)
Return: ES:BP = specified pointer
	CX    = bytes/character of on-screen font (not the requested font!)
	DL    = highest character row on screen
Note:	for UltraVision v2+, the 9xN alternate fonts follow the corresponding
	  8xN font at ES:BP+256N
BUG:	the IBM EGA and some other EGA cards return in DL the number of rows on
	  screen rather than the highest row number (which is one less).
SeeAlso: AX=1100h,AX=1120h,INT 1F,INT 43

Format of alternate font table [array]:
Offset	Size	Description	(Table 0020)
 00h	BYTE	character to be replaced (00h = end of table)
 01h  N BYTEs	graphics data for character, one byte per scan line
--------V-101130BX4D4F-----------------------
INT 10 - M10_SCR.COM v3.5+ - INSTALLATION CHECK
	AX = 1130h
	BX = 4D4Fh
Return: CX = 4F4Dh if installed
	    ES:BP -> M10_SCR INT 10 handler
Program: M10_SCR is a shareware extended text mode and font driver by
	  I.V. Morozov
SeeAlso: INT 16/AX=4D4Fh
--------V-1012-------------------------------
INT 10 - BIOS Window Extension v1.1 - GET BLANKING ATTRIBUTE
	AH = 12h
Return: BH = attribute to use on blanked lines when scrolling
Program: BWE is a TSR by John J. Seal published in May 1986 Dr. Dobb's Journal
SeeAlso: AH=11h"Window",AH=12h"Window"
--------V-1012--BL10-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS, EGA, VGA, MCGA) - GET EGA INFO
	AH = 12h
	BL = 10h
Return: BH = video state
	    00h color mode in effect (I/O port 3Dxh)
	    01h mono mode in effect (I/O port 3Bxh)
	BL = installed memory (00h = 64K, 01h = 128K, 02h = 192K, 03h = 256K)
	CH = feature connector bits (see #0021)
	CL = switch settings (see #0022,#0023)
	AH destroyed (at least by Tseng ET4000 BIOS v8.00n)
Note:	one possible check for the presence of an EGA or later display card
	  is to call this function with BH=FFh; if not present, BH will be
	  unchanged on return

Bitfields for feature connector bits:
Bit(s)	Description	(Table 0021)
 0	FEAT 1 line, state 2
 1	FEAT 0 line, state 2
 2	FEAT 1 line, state 1
 3	FEAT 0 line, state 1
 4-7	unused (0)

Bitfields for switch settings:
Bit(s)	Description	(Table 0022)
 0	switch 1 OFF
 1	switch 2 OFF
 2	switch 3 OFF
 3	switch 4 OFF
 4-7	unused

(Table 0023)
Values for switch settings on original EGA/VGA:
 00h		primary MDA/HGC,	secondary EGA+ 40x25
 01h-03h	primary MDA/HGC,	secondary EGA+ 80x25
 04h		primary CGA 40x25,	secondary EGA+ 80x25 mono
 05h		primary CGA 80x25,	secondary EGA+ 80x25 mono
 06h		primary EGA+ 40x25,	secondary MDA/HGC (optional)
 07h-09h	primary EGA+ 80x25,	secondary MDA/HGC (optional)
 0Ah		primary EGA+ 80x25 mono,secondary CGA 40x25 (optional)
 0Bh		primary EGA+ 80x25 mono,secondary CGA 80x25 (optional)
--------V-1012--BL11-------------------------
INT 10 - VIDEO - Trident TVGA 8800/8900/9000 BIOS - GET BIOS INFO
	AH = 12h
	BL = 11h
Return: AL = 12h if function supported
	    BL = ??? (10h)
	    ES:BP -> BIOS info structure (see #0024)
SeeAlso: AH=12h/BL=12h"TRIDENT"

Format of Trident BIOS Info structure:
Offset	Size	 Description	(Table 0024)
 00h	BYTE	 ??? (0000h)
 01h	BYTE	 OEM Code (00h for original Trident)
 02h	WORD	 ID??? (1073h for 8800BR, 1074 for 8800CS)
 04h  8 BYTEs	 BIOS date ('mm/dd/yy')
 0Ch	WORD	 ???
 0Eh  8 BYTEs	 BIOS Version (' C3-128 ', ' C3-129 ')
--------V-1012--BL12-------------------------
INT 10 - VIDEO - Trident TVGA 8800/8900/9000 BIOS - GET VIDEO RAM SIZE
	AH = 12h
	BL = 12h
Return: AL = 12h if function supported
	    AH = number of 256K banks of RAM installed
SeeAlso: AH=12h/BL=11h"TRIDENT"
--------V-1012--BL20-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS,EGA,VGA,MCGA) - ALTERNATE PRTSC
	AH = 12h
	BL = 20h  select alternate print screen routine
Desc:	installs a PrtSc routine from the video card's BIOS to replace the
	  default PrtSc handler from the ROM BIOS, which usually does not
	  understand screen heights other than 25 lines
Note:	some adapters disable print-screen instead of enhancing it
SeeAlso: INT 05
--------V-1012--BL2E-------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 12h
	BL = 2Eh
Note:	due to an omitted end-of-list marker, these versions of the BIOS will
	  crash the system on this function
--------V-1012--BL30-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (VGA) - SELECT VERTICAL RESOLUTION
	AH = 12h
	BL = 30h
	AL = vertical resolution
		  00h 200 scan lines
	     01h 350 scan lines
	     02h 400 scan lines
Return: AL = 12h if function supported
Desc:	specify the number of scan lines used to display text modes
Note:	the specified resolution will take effect on the next mode set
SeeAlso: AH=00h
--------V-1012--BL31-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (VGA, MCGA) - PALETTE LOADING
	AH = 12h
	BL = 31h
	AL = new state
	    00h enable default palette loading
	    01h disable default palette loading
Return: AL = 12h if function supported
Desc:	specify whether a default palette should be loaded when the display
	  mode is set
SeeAlso: AH=00h
--------V-1012--BL32-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (VGA, MCGA) - VIDEO ADDRESSING
	AH = 12h
	BL = 32h
	AL = new state
		 00h enable video addressing
	    01h disable video addressing
Return: AL = 12h if function supported
Desc:	specify whether the CPU should have access to video memory and the
	  display adapters I/O registers
--------V-1012--BL33-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (VGA, MCGA) - GRAY-SCALE SUMMING
	AH = 12h
	BL = 33h
	AL = new state
	    00h enable gray scale summing
	    01h disable gray scale summing
Return: AL = 12h if function supported
Desc:	specify whether or not colors should be converted to gray scale when
	  palette or color registers are loaded
SeeAlso: AX=101Bh,AX=BF06h,AX=BF08h
--------V-1012--BL34-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (VGA) - CURSOR EMULATION
	AH = 12h
	BL = 34h
	AL = new state
	    00h enable alphanumeric cursor emulation
	    01h disable alphanumeric cursor emulation
Return: AL = 12h if function supported
Desc:	specify whether the BIOS should automatically remap cursor start/end
	  according to the current character height in text modes
SeeAlso: AH=01h,AH=03h
--------V-1012--BL35-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS) - DISPLAY-SWITCH INTERFACE
	AH = 12h
	BL = 35h
	AL = subfunction
	    00h initial adapter video off
	    01h initial planar video on
	    02h switch active video off
	    03h switch inactive video on
	    80h *UNDOCUMENTED* set system board video active flag
	ES:DX -> buffer for 128 byte save area (if AL = 00h-03h)
Return: AL = 12h if function supported
Desc:	switch between two video adapters which may otherwise have address
	  conflicts
--------V-1012--BL36-------------------------
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS, VGA) - VIDEO REFRESH CONTROL
	AH = 12h
	BL = 36h
	AL = new state
		 00h enable refresh
	    01h disable refresh
Return: AL = 12h if function supported
Desc:	specify whether the contents of video memory should be displayed on
	  the screen; disabling refresh effectively blanks the screen
SeeAlso: AX=BF05h
--------V-1012--BL37-------------------------
INT 10 - VIDEO - XGA - MAINFRAME INTERACTIVE SUPPORT
	AH = 12h
	BL = 37h
	AL = text attribute type (00h normal VGA, 01h mainframe type)
Return: AL = 12h if supported
SeeAlso: #0025,AH=08h

Bitfields for XGA mainframe type character attributes:
Bit(s)	Description	(Table 0025)
 7	blink double rate (75% ON time) or use color 8 as background
	(see AX=1003h)
 6	reverse video
 5	underlined
 4	left-most and right-most dots of underline area inverted
 3	foreground intensity/character font select
 2-0	foreground color
SeeAlso: #0013,#0033
--------V-1012--BL53-------------------------
INT 10 - Tseng ET-4000 BIOS v8.00 (06/07/91) - BUG
	AH = 12h
	BL = 53h
Note:	due to an omitted end-of-list marker, this version of the BIOS will
	  crash the system on this function
--------V-1012--BL57-------------------------
INT 10 - Tseng ET-4000 BIOS v8.00 (06/07/91) - BUG
	AH = 12h
	BL = 57h
Note:	due to an omitted end-of-list marker, this version of the BIOS will
	  crash the system on this function
--------V-1012--BH55-------------------------
INT 10 - VIDEO - ALTERNATE FUNC SELECT (ATI,Tatung,Taxan) - ENHANCED FEATURES
	AH = 12h
	BH = 55h
	BL = subfunction
	    00h disable enhanced features
	    01h enable enhanced features
	    02h get status
		Return: AL = status flags (see #0026)
	    03h disable register trapping (CGA emulation)
		 04h enable register trapping
	    05h program video mode
		ES:BP -> video mode table (see #0027)
	    06h get mode table
		AL = video mode
		Return: ES:BP -> table suitable for mode AL (and subfnc BL=05h)
			BP = FFFFh on error
Note:	the ATI Mouse driver (MOUSE.COM/MOUSE.SYS) uses subfunction 06h to get
	  the mode table for mode 03h, and then looks for a signature string
	  beginning within 32 bytes of the offset specified by the word at
	  ES:000Ch
SeeAlso: AH=FFh"Oak"
Index:	installation check;ATI video adapters

Bitfields for status flags:
Bit(s)	Description	(Table 0026)
 3	set if enhanced features enabled
 7-5	monitor type
	000 PS/2 mono
	001 PS/2 color
	010 multi-sync
	011 Taxan 650 25kHz
	100 RGB
	101 mono
	110 EGA
	111 Compaq internal

Format of ATI VGA Wonder video mode table:
Offset	Size	Description	(Table 0027)
 00h	BYTE	number of columns
 01h	BYTE	maximum row (number of rows - 1)
 02h	BYTE	scan lines per row
 03h	WORD	video buffer size in bytes
 05h  4 BYTEs	values for Sequencer registers 1-4
 09h	BYTE	value for Miscellaneous Output register
 0Ah 25 BYTEs	values for CRTC registers 00h-18h
		00h horizontal total size (chars)
		01h horizontal displayed (chars)
		02h horizontal sync position (chars)
		03h horizontal sync width (chars)
		04h vertical total size (char rows)
		05h vertical total adjust (scan lines)
		06h vertical displayed (char rows)
		07h vertical sync position (char rows)
		08h interlace mode
		09h max scan line in row
		0Ah cursor start scan line
		0Bh cursor end scan line
		0Ch screen memory start (high)
		0Dh screen memory start (low)
		0Eh cursor address (high)
		0Fh cursor address (low)
		10h light pen (high)
		11h light pen (low)
 23h 20 BYTEs	default palette (values for Attribute Controller regs 00h-13h)
 37h  9 BYTEs	values for Graphics Controller registers 00h-08h
--------V-1012--BL74-------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 12h
	BL = 74h
Note:	due to an omitted end-of-list marker, these versions of the BIOS will
	  crash the system on this function
--------V-1012--BL80-------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 12h
	BL = 80h
Note:	due to an omitted end-of-list marker, these versions of the BIOS will
	  crash the system on this function
--------V-1012--BL80-------------------------
INT 10 - Cirrus Logic BIOS - INQUIRE VGA TYPE
	AH = 12h
	BL = 80h
Return: AX = controller type in bits 13-0 (see #0028)
	    bit 14: ???
	    bit 15: ???
	BL = silicon revision number (bit 7 set if not available)
SeeAlso: AH=12h/BL=81h,AH=12h/BL=82h,AH=12h/BL=85h,AH=12h/BL=9Ah,AH=12h/BL=A1h

(Table 0028)
Values for Cirrus Logic video controller type:
 0000h	no extended alternate select support
 0002h	510/520
 0003h	610/620
 0004h	5320
 0005h	6410
 0006h	5410
 0007h	6420
 0008h	6412
 0010h	5401
 0011h	5402
 0012h	5420
 0013h	5422
 0014h	5424
 0015h	5426
 0016h	5420r1
 0017h	5402r1
 0018h	5428
 0020h	6205/15/25
 0030h	5432
 0031h	5434
--------V-1012--BL81-------------------------
INT 10 - Cirrus Logic BIOS - GET BIOS VERSION NUMBER
	AH = 12h
	BL = 81h
Return: AH = BIOS major version
	AL = BIOS minor version
SeeAlso: AH=12h/BL=80h,AH=12h/BL=82h
--------V-1012--BL82-------------------------
INT 10 - Cirrus Logic BIOS - GET DESIGN REVISION CODE
	AH = 12h
	BL = 82h
Return: AL = chip revision
	AH = ??? (AFh for v1.01)
SeeAlso: AH=12h/BL=80h,AH=12h/BL=81h
----------1012--BL84-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - INQUIRE OPTIONS
	AH = 12h
	BL = 84h
Return: AX = user options word (see #0029)
SeeAlso: AH=12h/BL=89h,AH=12h/BL=8Ah,AH=12h/BL=8Bh,AH=12h/BL=8Ch,AH=12h/BL=8Fh
SeeAlso: AH=12h/BL=90h,AH=12h/BL=9Ah

Bitfields for Cirrus Logic user options word:
Bit(s)	Description	(Table 0029)
 1,0	centering
	00 vertical centered, 01 from bottom, 10 from top, 11 reserved
 3,2	720-dot fix-up options
	00 OR every 8th and 9th pixel
	01 display MGA mode from left
	10 display MGA mode from right
	11 skip every 9th pixel
 4	???
 7-5	video mode (001 CGA, 010 MGA, 011 EGA, 100 VGA)
 8	external monitor enabled instead of LCD panel
 9	vertical expand mode enabled
 10	8-bit mode instead of 16-bit mode
 11	normal video rather than reverse video (for LCD)
 12	attribute automap rather than attribute emulation
 13	bold mode disabled (default)
 14	fast bandwidth
 15	???
--------V-1012--BL85-------------------------
INT 10 - Cirrus Logic BIOS - GET INSTALLED MEMORY
	AH = 12h
	BL = 85h
Return: AL = number of 64K banks of video memory
SeeAlso: AH=12h/BL=80h,AH=12h/BL=93h
--------V-1012--BL89-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - EN/DISABLE REVERSE VIDEO MODE
	AH = 12h
	BL = 89h
	AL = new state (00h enabled, 01h disabled)
SeeAlso: AH=12h/BL=84h,AH=12h/BL=8Ah,AH=12h/BL=8Bh
--------V-1012--BL8A-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - SET FRAME COLOR
	AH = 12h
	BL = 8Ah
	AL = new gray-scale color (00h = black to 0Fh = white)
SeeAlso: AH=12h/BL=84h,AH=12h/BL=89h,AH=12h/BL=8Fh
--------V-1012--BL8B-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - ENABLE/DISABLE BOLD MODE
	AH = 12h
	BL = 8Bh
	AL = new state (00h enabled, 01h disabled)
SeeAlso: AH=12h/BL=84h,AH=12h/BL=89h,AH=12h/BL=8Ch,AH=12h/BL=8Fh
--------V-1012--BL8C-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - SET AUTOMAP/EMULATE ATTRIBUTES
	AH = 12h
	BL = 8Ch
	AL = new state
	    00h enable automap
	    01h disable automap and emulate attributes
SeeAlso: AH=12h/BL=84h,AH=12h/BL=8Bh
--------V-1012--BL8F-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - ENABLE/DISABLE EXPAND MODE
	AH = 12h
	BL = 8Fh
	AL = new state (00h enabled, 01h disabled)
Note:	when expand mode is enabled, the vertical dimension is enlarged to
	  full screen
SeeAlso: AH=12h/BL=84h,AH=12h/BL=89h,AH=12h/BL=8Bh,AH=12h/BL=90h
--------V-1012--BL90-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - SET CENTERING MODE
	AH = 12h
	BL = 90h
	AL = new position
	    00h centered
	    01h from top
	    02h from bottom
	    03h from top
SeeAlso: AH=12h/BL=84h,AH=12h/BL=8Fh
--------V-1012--BL91-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - SET 720-DOT FIXUP MODE
	AH = 12h
	BL = 91h
	AL = new mode
	    00h display MGA mode from left of screen (default)
	    01h display MGA from right
	    02h skip every ninth pixel
	    03h OR every 8th and 9th pixel
SeeAlso: AH=12h/BL=84h,AH=12h/BL=8Ah,AH=12h/BL=90h
--------V-1012--BL92-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - LCD panel - SWITCH DISPLAY
	AH = 12h
	BL = 92h
	AL = new display (00h LCD, 01h external monitor)
Note:	the deselected display is disabled
SeeAlso: AH=12h/BL=84h,AH=12h/BL=89h,AH=12h/BL=90h,AH=12h/BL=94h
--------V-1012--BL93-------------------------
INT 10 - Cirrus Logic BIOS - FORCE 8-BIT OR 16-BIT OPERATION
	AH = 12h
	BL = 93h
	AL = new I/O width (00h = 16 bits, 01h = 8 bits)
SeeAlso: AH=12h/BL=9Ah
--------V-1012--BL94-------------------------
INT 10 - Cirrus Logic BIOS v3.02 - POWER CONSERVATION
	AH = 12h
	BL = 94h
	AL = new state (00h wake up monitor, 01h shut down display)
Note:	AL=01h is reported not to work properly on the LCD panel
SeeAlso: AH=12h/BL=84h,AH=12h/BL=92h
--------V-1012--BL9A-------------------------
INT 10 - Cirrus Logic BIOS - GET USER OPTIONS
	AH = 12h
	BL = 9Ah
Return: AX = options word 1 (see #0030)
	CX = options word 2 (see #0031)
SeeAlso: AH=12h/BL=80h,AH=12h/BL=84h,AH=12h/BL=93h,AH=12h/BL=A0h
SeeAlso: AH=12h/BL=A3h,AH=12h/BL=A4h

Bitfields for Cirrus Logic options word 1:
Bit(s)	Description	(Table 0030)
 0,1	reserved
 2-4	monitor type
 5-6	maximum vertical resolution
 7-9	reserved
 10	force 8-bit operation
 11-13	reserved
 14	vertical refresh frequency at 640x480
 15	reserved

Bitfields for Cirrus Logic options word 2:
Bit(s)	Description	(Table 0031)
 0-3	reserved
 4-5	vertical refresh frequency at 1280x1024
 6-10	reserved
 11-12	vertical refresh frequency at 800x600
 13-15	vertical refresh frequency at 1024x768
--------V-1012--BLA0-------------------------
INT 10 - Cirrus Logic BIOS - GET VIDEO MODE AVAILABILITY
	AH = 12h
	BL = A0h
	AL = video mode number (00h-7Fh)
Return: AH bit 0: video mode supported
	BX = offset of BIOS subroutine to fixup standard video parameters
		(call subroutine with DS:SI and ES:DI as returned by this call)
	DS:SI -> standard video parameters or FFFFh:FFFFh
	ES:DI -> supplemental video parameters or FFFFh:FFFFh
SeeAlso: AH=00h,AH=12h/BL=9Ah,AH=12h/BL=A1h
--------V-1012--BLA1-------------------------
INT 10 - Cirrus Logic BIOS - READ MONITOR TYPE AND ID FROM 15-PIN CONNECTOR
	AH = 12h
	BL = A1h
Return: BH = monitor ID (see #0032)
	BL = monitor type (00h color, 01h grayscale, 02h no display)
SeeAlso: AH=12h/BL=9Ah,AH=12h/BL=A2h

(Table 0032)
Values for Cirrus Logic monitor ID:
 00h-08h reserved
 09h	IBM 8604/8507 or equivalent
 0Ah	IBM 8514 or equivalent
 0Bh	IBM 8515 or equivalent
 0Dh	IBM 8503 or equivalent
 0Eh	IBM 8512/8513 or equivalent
 0Fh	no monitor
--------V-1012--BLA2-------------------------
INT 10 - Cirrus Logic BIOS - SET MONITOR HORIZONTAL RETRACE FREQUENCY
	AH = 12h
	BL = A2h
	AL = retrace rate
	    00h standard VGA (31.5 kHz)
	    01h 8514-compatible (31.5 kHz and 35.5 kHz interlaced)
	    02h SuperVGA (31.5-35.1 kHz)
	    03h extended SuperVGA (31.5-35.5 kHz)
	    04h multi-frequency (31.5-37.8 kHz)
	    05h extended multi-frequency (31.5-48.0 kHz)
	    06h super multi-frequency (31.5-56.0 kHz)
	    07h extended super multi-frequency (31.5-64.0 kHz)
SeeAlso: AH=12h/BL=9Ah,AH=12h/BL=A0h,AH=12h/BL=A4h
--------V-1012--BLA3-------------------------
INT 10 - Cirrus Logic BIOS - SET VGA REFRESH
	AH = 12h
	BL = A3h
	AL = refresh rate for 640x480 (00h normal, 01h high)
SeeAlso: AH=12h/BL=9Ah,AH=12h/BL=A4h
--------V-1012--BLA4-------------------------
INT 10 - Cirrus Logic BIOS - SET MONITOR TYPE
	AH = 12h
	BL = A4h
	AL bits 3-0 = maximum vertical resolution
		(0 = 480 scanlines, 1 = 600, 2 = 768, 3 = 1024, other reserved)
	AL bits 7-4 = vertical refresh at 640x480
		(0 = 60Hz, 1 = 72Hz, other reserved)
	BH bits 3-0 = vertical refresh at 800x600
		(0 = 56Hz, 1 = 60Hz, 2 = 72Hz, other reserved)
	BH bits 7-4 = vertical refresh at 1024x768
		(0=87Hz-int, 1=60Hz, 2=70Hz, 3=72Hz, 4=76Hz, other reserved)
	CH bits 4-7 = vertical refresh at 1280x1024
		(0=87Hz-int, 1=60Hz, 2=70Hz, other reserved)
SeeAlso: AH=12h/BL=9Ah,AH=12h/BL=A3h
--------V-1012--BLBE-------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 12h
	BL = BEh
Note:	due to an omitted end-of-list marker, these versions of the BIOS will
	  crash the system on this function
--------V-1012--BLC6-------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 12h
	BL = C6h
Note:	due to an omitted end-of-list marker, these versions of the BIOS will
	  crash the system on this function
--------V-1012--BLF0-------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 12h
	BL = F0h
Note:	due to an omitted end-of-list marker, these versions of the BIOS will
	  crash the system on this function
--------V-1013-------------------------------
INT 10 - VIDEO - WRITE STRING (AT and later,EGA)
	AH = 13h
	AL = write mode
	   bit 0: update cursor after writing
	   bit 1: string contains alternating characters and attributes
	   bits 2-7: reserved (0)
	BH = page number
	BL = attribute if string contains only characters
	CX = number of characters in string
	DH,DL = row,column at which to start writing
	ES:BP -> string to write
Notes:	recognizes CR, LF, BS, and bell; for the ET4000 BIOS, scrolling,
	  backspace, and CR only take place in the active page
	also available PC or XT with EGA or higher
	HP 95LX only supports write mode 00h
BUG:	on the IBM VGA Adapter, any scrolling which may occur is performed on
	  the active page rather than the requested page
SeeAlso: AH=09h,AH=0Ah,AH=13h"DOS/V"
--------J-1013-------------------------------
INT 10 - DOS/V - READ/WRITE DOUBLE-BYTE CHARACTER SET CHARACTERS/ATTRIBUTES
	AH = 13h
	AL = function
	    10h read characters and standard attributes
	    11h read characters and extended attributes
	    12h write characters and standard attributes
	    13h write characters and extended attributes
	BH = 00h
	CX = number of characters to transfer
	DH,DL = row,column at which to start transfer
	ES:BP -> buffer for/containing characters and attributes (see #0033)
Return: ES:BP buffer filled if reading
Program: DOS/V is a Japanese-language version of MS-DOS which can run on
	  standard (non-Japanese) ATs and compatible equipped with a VGA or
	  newer video adapter
Notes:	subfunctions 11h and 13h are only valid when DOS/V is using video
	  mode 73h
	the cursor position is not changed by these functions
	extended attributes consist of three bytes; the first is the standard
	  character attribute byte, the second is as described below, and the
	  third is always zero in current versions
SeeAlso: AH=00h,AH=13h"VIDEO"

Bitfields for DOS/V second extended attribute byte:
Bit(s)	Description	(Table 0033)
 7	underline using foreground color
 6	reverse foreground/background specified in standard attribute byte
 5-4	unused
 3	vertical white grid line in cell
 2	horizontal white grid line in cell
 1-0	unused
SeeAlso: #0013,#0025
--------V-101400-----------------------------
INT 10 - VIDEO - LOAD USER-SPECIFIED LCD CHARACTER FONT (CONV,Compaq Port 386)
	AX = 1400h
	ES:DI -> character font
	BH = number of bytes per character
	    08h or 10h (Compaq)
	BL = 00h load main font (block 0)
	     01h load alternate font (block 1)
	CX = number of characters to store
	DX = character offset into RAM font area
SeeAlso: AH=11h,AX=1401h
--------V-101401-----------------------------
INT 10 - VIDEO - LOAD SYSTEM ROM DEFAULT LCD CHARACTER FONT (CONV,CP386)
	AX = 1401h
	BL = font to load
	    00h main font (block 0)
	    01h alternate font (block 1)
SeeAlso: AH=11h,AX=1400h
--------V-101402-----------------------------
INT 10 - VIDEO - SET MAPPING OF LCD HIGH INTENSITY ATTRIBUTES (CONV,CP386)
	AX = 1402h
	BL = function
	    00h ignore high intensity attribute
	    01h map high intensity to reverse video
	    02h map high intensity to underscore
	    03h map high intensity to selected alternate font
	    B0h half intensity (Compaq)
	    B1h toggle active intensity bit interpretation (CP386)
--------V-1015-------------------------------
INT 10 - VIDEO - GET PHYSICAL DISPLAY PARAMETERS (CONVERTIBLE)
	AH = 15h
Return: AX = alternate display adapter type (see #0034)
	ES:DI -> parameter table (see #0035)
SeeAlso: AH=1Bh

(Table 0034)
Values for PC Convertible alternate display adapter type:
 0000h	none
 5140h	LCD
 5153h	CGA
 5151h	mono

Format of PC Convertible display parameter table:
Offset	Size	Description	(Table 0035)
 00h	WORD	monitor model number
 02h	WORD	vertical pixels per meter
 04h	WORD	horizontal pixels per meter
 06h	WORD	total vertical pixels
 08h	WORD	total horizontal pixels
 0Ah	WORD	horizontal pixel separation in micrometers
		(width, center-to-center)
 0Ch	WORD	vertical pixel separation in micrometers
		(height, center-to-center)
--------V-1015-------------------------------
INT 10 - VIDEO - SET SUPERIMPOSE MODE (Sperry PC)
	AH = 15h
	AL = superimpose mode
	    00h show graphics screen
	    01h show text screen
	    02h show text screen superimposed on graphics screen
--------J-1018-------------------------------
INT 10 - VIDEO - DOS/V - GET/SET FONT PATTERN
	AH = 18h
	AL = function
	    00h get font pattern
	    01h set font pattern
	BX = 0000h
	CL = character size in bytes (01h,02h)
	CH = 00h 
	DH = character width in pixels
	DL = character height in pixels
	ES:DI -> buffer for/containing font image
Return: AL = status (00h successful, else error)
	ES:DI buffer filled for function 00h if successful
Note:	the supported font sizes are 8x16 single-byte, 8x19 single-byte,
	  16x16 double-byte, and 24x24 double-byte
SeeAlso: AH=19h,INT 16/AH=14h
--------V-1019-------------------------------
INT 10 - Japanese VIDEO - DOUBLE-BYTE CHARACTER SET SHIFT INFORMATION
	AH = 19h
	???
Return: ???
SeeAlso: AH=18h,INT 16/AH=14h
--------V-101A00-----------------------------
INT 10 - VIDEO - GET DISPLAY COMBINATION CODE (PS,VGA/MCGA)
	AX = 1A00h
Return: AL = 1Ah if function was supported
	    BL = active display code (see #0036)
	    BH = alternate display code (see #0036)
Note:	this function is supported on the ATI EGA Wonder with certain
	  undocumented configuration switch settings, even though the EGA
	  Wonder does not support VGA graphics; to distinguish this case,
	  call AX=1C00h with CX nonzero, which the EGA Wonder does not support
SeeAlso: AH=12h/BL=35h,AX=1A01h,AH=1Bh

(Table 0036)
Values for display combination code:
 00h	no display
 01h	monochrome adapter w/ monochrome display
 02h	CGA w/ color display
 03h	reserved
 04h	EGA w/ color display
 05h	EGA w/ monochrome display
 06h	PGA w/ color display
 07h	VGA w/ monochrome analog display
 08h	VGA w/ color analog display
 09h	reserved
 0Ah	MCGA w/ digital color display
 0Bh	MCGA w/ monochrome analog display
 0Ch	MCGA w/ color analog display
 FFh	unknown display type
--------V-101A01-----------------------------
INT 10 - VIDEO - SET DISPLAY COMBINATION CODE (PS,VGA/MCGA)
	AX = 1A01h
	BL = active display code (see #0036)
	BH = alternate display code
Return: AL = 1Ah if function was supported
SeeAlso: AH=12h/BL=35h,AX=1A00h
--------V-101B-------------------------------
INT 10 - VIDEO - FUNCTIONALITY/STATE INFORMATION (PS,VGA/MCGA)
	AH = 1Bh
	BX = implementation type
	    0000h return funtionality/state information
	ES:DI -> 64-byte buffer for state information (see #0037)
Return: AL = 1Bh if function supported
		 ES:DI buffer filled with state information
BUG:	Trident 8900 (BIOS D3.0 11/12/91) and Trident 9000 (C3.0 10/25/91)
	  do not correctly set the fields at offsets 27h and 29h of the
	  state information
SeeAlso: AH=15h,AX=1A00h,AX=1F01h

Format of MCGA+ state information:
Offset	Size	Description	(Table 0037)
 00h	DWORD	address of static funtionality table (see #0040)
 04h	BYTE	video mode in effect
 05h	WORD	number of columns
 07h	WORD	length of regen buffer in bytes
 09h	WORD	starting address of regen buffer
 0Bh	WORD	cursor position for page 0
 0Dh	WORD	cursor position for page 1
 0Fh	WORD	cursor position for page 2
 11h	WORD	cursor position for page 3
 13h	WORD	cursor position for page 4
 15h	WORD	cursor position for page 5
 17h	WORD	cursor position for page 6
 19h	WORD	cursor position for page 7
 1Bh	WORD	cursor "type" (start/stop scan lines)
 1Dh	BYTE	active display page
 1Eh	WORD	CRTC port address
 20h	BYTE	current setting of register (3?8)
 21h	BYTE	current setting of register (3?9)
 22h	BYTE	number of rows - 1
 23h	WORD	bytes/character
 25h	BYTE	display combination code of active display
 26h	BYTE	DCC of alternate display
 27h	WORD	number of colors supported in current mode (0000h = mono)
 29h	BYTE	number of pages supported in current mode
 2Ah	BYTE	number of scan lines active
		(0,1,2,3) = (200,350,400,480)
		Tseng ET3000: (4,5,6 = 512,600,768)
 2Bh	BYTE	primary character block
 2Ch	BYTE	secondary character block
 2Dh	BYTE	miscellaneous flags (see #0038)
 2Eh  3 BYTEs	reserved (00h)
 31h	BYTE	video memory available
		00h = 64K, 01h = 128K, 02h = 192K, 03h = 256K
 32h	BYTE	save pointer state flags (see #0039)
 33h 13 BYTEs	reserved (00h)

Bitfields for miscellaneous flags:
Bit(s)	Description	(Table 0038)
 0	all modes on all displays on
 1	gray summing on
 2	monochrome display attached
 3	default palette loading disabled
 4	cursor emulation enabled
 5	0 = intensity; 1 = blinking
 6	PS/2 P70 plasma display (without 9-dot wide font) active
 7	unused (0)

Bitfields for save pointer state flags:
Bit(s)	Description	(Table 0039)
 0	512 character set active
 1	dynamic save area present
 2	alpha font override active
 3	graphics font override active
 4	palette override active
 5	DCC override active
 6-7	unused (0)

Format of Static Functionality Table:
Offset	Size	Description	(Table 0040)
 00h	BYTE	modes supported 1
		bit 0 to bit 7 = 1 modes 0,1,2,3,4,5,6,7 supported
 01h	BYTE	modes supported 2
		bit 0 to bit 7 = 1 modes 8,9,0Ah,0Bh,0Ch,0Dh,0Eh,0Fh supported
 02h	BYTE	modes supported 3
		bit 0 to bit 3 = 1 modes 10h,11h,12h,13h supported
		bit 4 to bit 7 unused (0)
 03h	BYTE	(IBM) reserved
		(Tseng ET3000/4000) modes supported 4
				bit 0 to bit 7 = modes 18h-1Fh supported
 04h	BYTE	(IBM) reserved
		(Tseng ET3000/4000) modes supported 5
				bit 0 to bit 7 = modes 20h-27h supported
 05h	BYTE	(IBM) reserved
		(Tseng ET3000/4000) modes supported 6
				bit 0 to bit 7 = modes 28h-2Fh supported
 06h	BYTE	(IBM) reserved
		(Tseng ET3000/4000) modes supported 7
				bit 0 to bit 7 = modes 30h-37h supported
 07h	BYTE	scan lines supported
		bit 0 to bit 2 = 1 if scan lines 200,350,400 supported
		bits 3-7 = unused (0)
 08h	BYTE	total number of character blocks available in text modes
 09h	BYTE	maximum number of active character blocks in text modes
 0Ah	WORD	miscellaneous function support flags (see #0041)
 0Ch	WORD	reserved
 0Eh	BYTE	save pointer function flags (see #0042)
 0Fh	BYTE	reserved

Bitfields for miscellaneous function support flags:
Bit(s)	Description	(Table 0041)
 0	all modes on all displays function supported
 1	gray summing function supported
 2	character font loading function supported
 3	default palette loading enable/disable supported
 4	cursor emulation function supported
 5	EGA palette present
 6	color palette present
 7	color-register paging function supported
 8	light pen supported (see AH=04h)
 9	save/restore state function 1Ch supported
 10	intensity/blinking function supported (see AX=1003h)
 11	Display Combination Code supported (see #0036)
 12-15	unused (0)

Bitfields for save pointer function flags:
Bit(s)	Description	(Table 0042)
 0	512 character set supported
 1	dynamic save area supported
 2	alpha font override supported
 3	graphics font override supported
 4	palette override supported
 5	DCC extension supported
 6-7	unused (0)
--------V-101C-------------------------------
INT 10 - VIDEO - SAVE/RESTORE VIDEO STATE (PS50+,VGA)
	AH = 1Ch
	AL = function
	    00h return state buffer size
		Return: BX = number of 64-byte blocks needed
	    01h save video state
		ES:BX -> buffer
	    02h restore video state
		ES:BX -> buffer containing previously saved state
	CX = requested states (see #0043)
Return: AL = 1Ch if function supported
Notes:	many BIOSes corrupt the video registers when saving the state, so a
	  program should restore the state immediately after saving it (the
	  saved data is uncorrupted)
	the BIOS data area consists of the 96 bytes from 0040h:0049h-00A8h
	this function is not supported when DOS/V is running

Bitfields for requested states:
Bit(s)	Description	(Table 0043)
 0	video hardware (see #0044)
 1	BIOS data areas
 2	color registers and DAC state (see #0045)
 3-15	unused (0)

Format of VGA video hardware state:
Offset	Size	Description	(Table 0044)
 00h	BYTE	sequencer index register
 01h	BYTE	CRTC index register
 02h	BYTE	graphics controller index register
 03h	BYTE	attribute controller index register
 04h	BYTE	feature controller register
 05h  4 BYTEs	sequencer registers
 09h	BYTE	sequencer register 0
 0Ah 25 BYTEs	CRTC registers 0-8
 23h 16 BYTEs	palette registers 00h-0Fh
 33h  4 BYTEs	attribute registers 10h-13h
 37h  9 BYTEs	graphics controller registers 0-8
 40h	BYTE	CRTC base address (low)
 41h	BYTE	CRTC base address (high)
 42h	BYTE	plane 0 latch
 43h	BYTE	plane 1 latch
 44h	BYTE	plane 2 latch
 45h	BYTE	plane 3 latch

Format of VGA DAC state:
Offset	Size	Description	(Table 0045)
 00h	BYTE	read/write mode DAC
 01h	BYTE	pixel address
 02h	BYTE	pixel mask
 03h 768 BYTEs	color data (256 triples)
303h	BYTE	color select register
--------J-101D-------------------------------
INT 10 - VIDEO - DOS/V - SHIFT STATUS LINE CONTROL
	AH = 1Dh
	AL = function
	    00h enable shift status line(s)
		BX = number of lines to reserve at bottom of screen (usu. 1)
	    01h disable shift status line
		BX = number of lines reserved at bottom of screen (usually 1)
	    02h get number of status lines
		Return: BX = number of lines reserved for shift status
SeeAlso: AH=19h
--------V-101D-------------------------------
INT 10 - SpeedSTAR Plus BIOS v4.23+ - SET SYNC PARAMETERS
	AH = 1Dh
	AL = video mode
	ES = caller's segment
Return: nothing
Note:	the caller's segment contains at offset 5Ch (FCB field in PSP)
	  or 100h a table with sync parameters (see #0046) (BIOS looks at both
	  offsets)

Format of SpeedSTAR Plus sync table:
Offset	Size	Description	(Table 0046)
 00h  9 BYTEs	ID contains string 'ey5CENTER'
 09h  5 BYTEs	sync parameters for 640x480 modes 11h,12h,25h,26h,2Eh
 0Bh  5 BYTEs	sync parameters for 800x600 modes 29h,30h,2Ah
 13h  5 BYTEs	sync parameters for 1024x768 modes 37h,38h
--------V-101D-------------------------------
INT 10 - Tseng ET-4000 BIOS v3.00 and v8.00 - BUG
	AH = 1Dh
Note:	these versions of the BIOS jump to a random location on this function
	  due to a fencepost error
--------V-101F00-----------------------------
INT 10 - VIDEO - XGA - GET DMQS (Display Mode Query and Set) DATA LENGTH
	AX = 1F00h
Return: AL = 1Fh if supported
	    BX = number of bytes of DMQS data
Note:	not supported on the original IBM XGA, only on XGA-NI (non-interlaced)
	  and later models.
SeeAlso: AX=1F01h
--------V-101F01-----------------------------
INT 10 - VIDEO - XGA - READ DMQS DATA
	AX = 1F01h
	ES:DI -> user buffer for return data (call AX=1F00h for size)
Return: AL = 1Fh if function supported
	user buffer filled with DMQS data (see #0047)
Note:	not supported on the original IBM XGA, only on XGA-NI (non-interlaced)
	  and later models.
SeeAlso: AH=1Bh,AX=1F00h,AX=3000h

Format of XGA DMQS buffer:
Offset	Size	Description	(Table 0047)
 00h	WORD	offset (in bytes) to DMQS data for next XGA instance
 02h	BYTE	slot number
 03h	BYTE	XGA implementation function level identifier
 04h	BYTE	XGA implementation resolution level identifier
 05h	WORD	vendor identifier - identifies card vendor
 07h	WORD	vendor defined field
 09h	WORD	XGA adapter I/O register base address
 0Bh	WORD	XGA coprocessor register base address
		(paragraph--multiply by 10h to get physical address)
 0Dh	WORD	1 Megabyte system video memory aperture
		0000h if not allocated
		(Multiply by 100000h to get physical address)
 0Fh	WORD	4 Megabyte system video memory aperture
		0000h if not allocated
		(multiply by 100000h to get physical address)
 11h	WORD	video memory base address
		(multiply by 100000h to get physical address)
 13h	WORD	composite ID of the attached display
 15h	BYTE	amount of video memory available, in multiples of 256K bytes
 16h	DWORD	alternate XGA coprocessor register base address.  0 = none.
 1Ah	var	DMQS Data for further XGA Instances (as above)
Note:	"Instances" refers to the capability of having up to 8 XGA
	  adapters in one computer.
--------V-103000CX0000-----------------------
INT 10 - VIDEO - LOCATE 3270PC CONFIGURATION TABLE (INSTALLATION CHECK)
	AX = 3000h
	CX = 0000h
	DX = 0000h
Return: CX:DX -> 3270PC configuration table (see #0048)
	CX:DX = 0000h:0000h if 3270PC Control Program not active
SeeAlso: AX=1F01h

Format of 3270 PC configuration table:
Offset	Size	Description	(Table 0048)
 00h	BYTE	aspect ratio X
 01h	BYTE	aspect ratio Y
 02h	BYTE	monitor type (see #0049)
 03h	BYTE	reserved
 04h	BYTE	adapter ID
		00h = 5151/5272 adapter
		04h = 5151/5272 with XGA adapter
		30h = 3295 or 3270PC G/GX adapter
 05h	BYTE	reserved
 06h	BYTE	function flags 1 (see #0050)
 07h	BYTE	function flags 2
		bit 6: GPI graphics supported
 08h	WORD	segment address of Control Program Level table (see #0051)
 0Ah 10 BYTEs	reserved

(Table 0049)
Values for 3270 PC monitor type:
 00h	5151 (mono) or 5272 (color)
 01h	3295
 02h	5151 or 5272 with XGA (???) graphics adapter
 03h	5279 with 3270PC G adapter
 04h	5379 model C01 with 3270PC GX adapter
 05h	5379 model M01 with 3270PC GX adapter
 07h	non-3270PC with 3270 Workstation Program
 FFh	3270PC Control Program not loaded

Bitfields for 3270 PC function flags 1:
Bit(s)	Description	(Table 0050)
 7	mono text, 1 page
 6	color text, 1 page
 5	color text, 4 pages
 4	CGA color graphics
 3	720x350 two-color graphics
 2	360x350 four-color graphics
 1	720x350 eight-color graphics

Format of Control Program Level table:
Offset	Size	Description	(Table 0051)
 00h	WORD	program version
		02xxh = 3270PC Control Program v2.xx
		03xxh = 3270PC Control Program v3.xx
		04xxh = 3270 Workstation Program v1.xx
 02h	BYTE	Control Program ID (00h)
 03h 27 BYTEs	Control Program Descriptor ("IBM 3270 PC CONTROL PROGRAM")
--------a-103800-----------------------------
INT 10 - Tinytalk Personal v1.09f+ - GET CONFIGURATION INFO
	AX = 3800h
Return: ES:DI -> configuration info (see #0052)
Program: Tinytalk is a shareware screen reader by OMS Development/Eric Bohlman
Notes:	this call is also used as the installation check by verifying that the
	  returned ES:DI points at valid configuration info
	Tinytalk v1.09f ignores AL and always returns the configuration info;
	  v1.10 adds several subfunctions selected with AL
SeeAlso: AX=3801h,AX=3803h,AX=3806h,AH=39h,INT 14/AX=F0F1h
SeeAlso: INT 2F/FB00h"AutoBraille"
Index:	installation check;Tinytalk Personal

Format of Tinytalk Personal configuration info:
Offset	Size	Description	(Table 0052)
 00h  8 BYTEs	signature "TTCONFIG"
 08h	WORD	size of configuration data, not counting signature, this WORD,
		  or the following byte
 0Ah	BYTE	???
 0Bh	???	configuration data
--------a-103801-----------------------------
INT 10 - Tinytalk Personal v1.10 - ???
	AX = 3801h
	DL = ???
Return: ???
SeeAlso: AX=3800h,AX=3802h
--------a-103802-----------------------------
INT 10 - Tinytalk Personal v1.10 - ???
	AX = 3802h
	DL = ???
Return: ???
SeeAlso: AX=3800h,AX=3801h
--------a-103803-----------------------------
INT 10 - Tinytalk Personal v1.10 - GET ???
	AX = 3803h
Return: AL = ???
SeeAlso: AX=3800h,AX=3804h,AX=3805h
--------a-103804-----------------------------
INT 10 - Tinytalk Personal v1.10 - GET ???
	AX = 3804h
Return: AX = ???
SeeAlso: AX=3800h,AX=3803h,AX=3805h
--------a-103805-----------------------------
INT 10 - Tinytalk Personal v1.10 - GET ???
	AX = 3805h
Return: AL = ???
SeeAlso: AX=3800h,AX=3803h,AX=3804h
--------a-103806-----------------------------
INT 10 - Tinytalk Personal v1.10 - ???
	AX = 3806h
	ES:DX -> ASCIZ ???
Return: ???
SeeAlso: AX=3800h
--------a-1039-------------------------------
INT 10 - Tinytalk Personal v1.10 - ???
	AH = 39h
Program: Tinytalk is a shareware screen reader by OMS Development/Eric Bohlman
Note:	this function was a NOP in TTDEMO.EXE, but may be implemented in other
	  variants of Tinytalk
--------V-1040-------------------------------
INT 10 - VIDEO - SET GRAPHICS MODE (Hercules GRAFIX)
	AH = 40h
Desc:	switch the Hercules Graphics Card into graphics mode (720x348)
SeeAlso: AH=00h,AH=41h
Index:	video modes;Hercules
--------V-1041-------------------------------
INT 10 - VIDEO - SET TEXT MODE (Hercules GRAFIX)
	AH = 41h
Desc:	switch the Hercules Graphics Card into text mode
SeeAlso: AH=00h,AH=40h
Index:	video modes;Hercules
--------V-1042-------------------------------
INT 10 - VIDEO - CLEAR CURRENT PAGE (Hercules GRAFIX)
	AH = 42h
SeeAlso: AH=45h
--------V-1043-------------------------------
INT 10 - VIDEO - SELECT DRAWING PAGE (Hercules GRAFIX)
	AH = 43h
	AL = page number (0,1)
Desc:	specify which of the two pages of video memory is to be used for
	  output
SeeAlso: AH=05h,AH=44h,AH=45h
--------V-1044-------------------------------
INT 10 - VIDEO - SELECT DRAWING FUNCTION (Hercules GRAFIX)
	AH = 44h
	AL = drawing function
	    00h clear pixels
	    01h set pixels
		 02h invert pixels
Desc:	specify how graphics output will change the display
SeeAlso: AH=45h,AH=46h,AH=4Ch,AH=4Dh
--------V-1045-------------------------------
INT 10 - VIDEO - SELECT PAGE TO DISPLAY (Hercules GRAFIX)
	AH = 45h
	AL = page number (0,1)
Desc:	specify which of the two pages of video memory is visible on screen
SeeAlso: AH=05h,AH=42h,AH=43h
--------V-1046-------------------------------
INT 10 - VIDEO - DRAW ONE PIXEL (Hercules GRAFIX)
	AH = 46h
	DI = x (0-719)
	BP = y (0-347)
Note:	function 44h determines operation and function 43h which page to use
SeeAlso: AH=0Ch,AH=47h,AH=49h,AH=4Ch,AH=4Dh
--------V-1047-------------------------------
INT 10 - VIDEO - FIND PIXEL VALUE (Hercules GRAFIX)
	AH = 47h
	DI = x (0-719)
	BP = y (0-347)
Return: AL = 00h pixel clear
	AL = 01h pixel set
Note:	function 43h specifies which page is used
SeeAlso: AH=0Dh,AH=46h
--------V-1048-------------------------------
INT 10 - VIDEO - MOVE TO POINT (Hercules GRAFIX)
	AH = 48h
	DI = x (0-719)
	BP = y (0-347)
Desc:	specify the location from which to start the next graphics output
SeeAlso: AH=49h
--------V-1049-------------------------------
INT 10 - VIDEO - DRAW TO POINT (Hercules GRAFIX)
	AH = 49h
	DI = x (0-719)
	BP = y (0-347)
Note:	function 48h or 49h specify first point, 44h operation and 43h page to
	  use
SeeAlso: AH=43h,AH=44h,AH=48h,AH=4Ch,AH=4Dh
--------V-104A-------------------------------
INT 10 - VIDEO - BLOCK FILL (Hercules GRAFIX)
	AH = 4Ah
	DI = x coordinate of lower left corner
	BP = y coordinate of lower left corner
	BX = height in pixels
	CX = width in pixels
Desc:	draw a solid rectangle of the specified size at the given location
SeeAlso: AH=4Eh
--------V-104B-------------------------------
INT 10 - VIDEO - DISPLAY CHARACTER (Hercules GRAFIX)
	AH = 4Bh
	AL = character to display
	DI = x (0-719)
	BP = y (0-347)
Note:	unlike the other BIOS character functions character position is
	  specified in pixels rather than rows and columns
SeeAlso: AH=09h,AH=0Ah
----------104B-------------------------------
INT 10 - FRIEZE - API
	AH = 4Bh
	CL = function
	    00h (v6.x-) print window
		AL = mode
		    00h character
		    01h normal
		    02h sideways
	    01h load window
		ES:BX -> ASCIZ filename from which to read
		 02h save window
		ES:BX -> ASCIZ filename to which to write
	    03h set print width
		AL = width in 1/4 inches
	    04h set print height
		AL = height in 1/4 inches
	    05h reserved
	    06h set left margin
		AL = printout margin in 1/4 inches
	    07h set window size
		ES:BX -> four-WORD structure with Xmin, Ymin, Xmax, Ymax
	    08h reserved
	    09h set patterns
		ES:BX -> 16-BYTE vector of screen->printer color correspondnces
	    0Ah get patterns
		ES:BX -> 16-BYTE buffer for color correspondences
	    0Bh set mode
		AL = mode
	    0Ch (v7.41) ???
		AL = ???
		    00h ??? (calls original INT 05)
		    else ???
	    0Dh (v7.41) ???
		AL = ???
		    00h ??? (calls original INT 05)
		    else ???
	    0Eh (v7.41) ???
		???
	    0Fh get window
		ES:BX -> four-WORD buffer for Xmin, Ymin, Xmax, Ymax
	    10h set print options
		ES:BX -> printer options in same format as FRIEZE cmdline
	    11h initialize
		ES:BX -> three-WORD array from CARDS.DAT for HRes, VRes, code
	    12h (v7.41) ???
		???
	    13h (v7.41) ???
		???
	    14h get version
		Return: AH = major version (00h if FRIEZE version before 7)
			AL = minor version
	    15h set parameters
		ES:BX -> parameter table (see #0054)
	    16h get parameters
		ES:BX -> buffer for parameter table (see #0054)
	    17h get printer resolution
		ES:BX -> 12-WORD table for six horizontal/vertical resol pairs
	    18h (v8.0 only) reserved
	    50h (v7.41) get ???
		Return: AX = ???
	    51h (v7.41) get ???
		Return: ES = ??? (seen 2348h)
			AX = ??? (seen 8432h)
Return: AX = status (see #0053)
SeeAlso: AH=0Fh/SI=F123h

(Table 0053)
Values for FRIEZE function status:
 00h	successful
 01h	user aborted printout with ESC
 02h	reserved
 03h	file read error
 04h	file write error or printer error
 05h	file not found
 06h	invalid header (not an image or wrong screen mode) or can't create file
 07h	file close error
 08h	disk error
 09h	(v7.0+) printer error
 0Ah	invalid function
 0Bh	(v7.0+) can't create file
 0Ch	(v7.0+) wrong video mode

Format of FRIEZE parameter table:
Offset	Size	Description	(Table 0054)
 00h	WORD	top margin (1/100 inch)
 02h	WORD	left margin (1/100 inch)
 04h	WORD	horizontal size (1/100 inch)
 06h	WORD	vertical size (1/100 inch)
 08h	WORD	quality/draft mode
		00h draft mode
		01h quality mode
		02h use horizontal/vertical resolution for output resolution
 0Ah	WORD	printer horizontal resolution (dots per inch)
 0Ch	WORD	printer vertical resolution (dots per inch)
 0Eh	WORD	reserved (FFFFh)
Note:	any field which should remain unchanged may be filled with FFFFh
--------V-104C-------------------------------
INT 10 - VIDEO - DRAW ARC (Hercules GRAFIX)
	AH = 4Ch
	AL = quadrant (1 = upper right, 2 = upper left, etc)
	DI = x coordinate of center
	BP = y coordinate of center
	BX = radius
SeeAlso: AH=49h,AH=4Dh
--------V-104D-------------------------------
INT 10 - VIDEO - DRAW CIRCLE (Hercules GRAFIX)
	AH = 4Dh
	DI = x of center
	BP = y of center
	BX = radius
SeeAlso: AH=49h,AH=4Ch
--------V-104E-------------------------------
INT 10 - VIDEO - FILL AREA (Hercules GRAFIX)
	AH = 4Eh
	DI = x coordinate of an interior point
	BP = y coordinate of an interior point
Desc:	fill a convex polygonal area bounded by a contiguous line of the
	  opposite color with the border color
Note:	the first fill makes the figure solid, the second erases it
SeeAlso: AH=4Ah
--------V-104E00-----------------------------
INT 10 - VESA XGA BIOS Extensions - GET XGA ENVIRONMENT INFORMATION
	AX = 4E00h
	ES:DI -> 256-byte buffer for XGA information (see #0055)
Return: AL = 4Eh if function supported
		 AH = status
		00h successful
		else error code
Desc:	determine whether VESA XGA extensions are present and the capabilities
	  supported by the display adapter
SeeAlso: AX=4E01h,AX=4E02h,AX=4F00h
Index:	installation check;VESA XGA

Format of XGA information buffer:
Offset	Size	Description	(Table 0055)
 00h  4 BYTEs	signature ("VESA")
 04h	WORD	VESA version number
 06h	DWORD	pointer to ASCIZ OEM string
 0Ah	DWORD	environment flags (see #0056)
 0Eh	WORD	number of XGA adapters installed (other VESA XGA functions
		  require a handle indicating which adapter to use)
 10h 240 BYTEs	reserved

Bitfields for XGA environment flags:
Bit(s)	Description	(Table 0056)
 0-1	system bus (00 = MCA, 01 = ISA, 10 = EISA)
 2	bus mastering available
 3-31	reserved
--------V-104E01----------------------------
INT 10 - VESA XGA BIOS Extensions - RETURN XGA SUBSYSTEM INFORMATION
	AX = 4E01h
	DX = XGA handle (0 to number of XGAs-1)
	ES:DI -> 256-byte buffer for subsystem information (see #0057)
Return: AL = 4Eh if function supported
	AH = status
	    00h	 function successful
	    else error code
SeeAlso: AX=4E00h,AX=4E02h

Format of XGA subsystem information:
Offset	Size	Description	(Table 0057)
 00h	DWORD	pointer to null-terminated board OEM string
 04h	DWORD	capabilities (see #0058)
 08h	DWORD	pointer to 8KB XGA ROM (or NULL)
 0Ch	DWORD	pointer to the XGA memory mapped registers
 10h	WORD	base address of XGA I/O registers (21x0h)
 12h	DWORD	pointer to start of physical video memory
		(A000h:0000h or B000h:0000h)
 16h	DWORD	physical address of 4MB aperture (or NULL if none)
 1Ah	DWORD	physical address of 1MB aperture (or NULL if none)
 1Eh	DWORD	physical address of 64KB aperture (or NULL if not enabled)
 22h	DWORD	physical address of OEM aperture (or NULL if none)
 26h	WORD	size of OEM aperture in 64KByte units
 28h	DWORD	pointer to list of video modes
		The list is a series of WORDs terminated by FFFFh
 2Ch	WORD	number of 64KB blocks on the board
 2Eh	DWORD	XGA manufacturer ID
		byte 0 POS data index 1
		byte 1 is index 2
		byte 2 is 21xAh index 75h
 32h 206 BYTEs	reserved

Bitfields for XGA capabilities:
Bit(s)	Description	(Table 0058)
 0-1	board bus architecture: 0=MCA, 1=ISA, 3=EISA
 2-3	reserved
 4-6	DMA Channel assigned for acquiring bus mastership (only for ISA bus)
 7	DMA Channel Status (ISA only). enabled if set
 8-31	reserved
--------V-104E02-----------------------------------
INT 10 - VESA XGA BIOS Extensions - RETURN XGA MODE INFORMATION
	AX = 4E02h
	CX = Video mode
	DX = XGA handle
	ES:DI -> 256 byte buffer for mode information (see #0059)
Return: AL = 4Eh if function supported
	AH = status
	    00h	 function successful
	    else error code
SeeAlso: AX=4E00h,AX=4E01h

Format of XGA mode information:
Offset	Size	Description	(Table 0059)
 00h	WORD	attributes of the mode (see #0060)
 02h	WORD	bytes per logical scanline
 04h	WORD	horizontal resolution in pixels
 06h	WORD	vertical resolution in scanlines
 08h	BYTE	character Width in pixels
 09h	BYTE	character Height in pixels
 0Ah	BYTE	number of planes
 0Bh	BYTE	bits per pixels
 0Ch	BYTE	memory model (see #0061)
 0Dh	BYTE	number of Image Pages
 0Eh	BYTE	number of Red bits
 0Fh	BYTE	bit position of Red bit field
 10h	BYTE	number of Green bits
 11h	BYTE	bit position of Green bit field
 12h	BYTE	number of Blue bits
 13h	BYTE	bit position of Blue bit field
 14h	BYTE	number of Reserved bits
 15h	BYTE	bit position of Reserved bit field
 16h 235 BYTEs	reserved

Bitfields for XGA mode attributes:
Bit(s)	Description	(Table 0060)
 0	set if mode is supported
 1	reserved
 2	output is supported by the BIOS
 3	reserved
 4	if set this is a graphics mode (VGA registers inactive, XGA active),
	  if clear this is a text mode (VGA registers active, XGA inactive)

(Table 0061)
Values for XGA video memory model:
 00h	Text Mode
 01h	CGA graphics
 02h	Hercules graphics
 03h	4-planar graphics
 04h	Packed Pixel
 05h	Non-chain 4, 256 color
 06h	Direct Color
 07h	YUV-24
--------V-104E03-----------------------------------
INT 10 - VESA XGA BIOS Extensions - SET XGA VIDEO MODE
	AX = 4E03h
	BX = video mode
	CX = other command flags
	     bit 0  If clear the feature connector is set to the default state
	DX = XGA handle
	ES:DI -> 256 byte buffer
Return: AL = 4Eh if function supported
	AH = status
	    00h	 function successful
	    else error code
SeeAlso: AH=00h,AX=4E04h,AX=4F02h
--------V-104E04-----------------------------------
INT 10 - VESA XGA BIOS Extensions - RETURN CURRENT VIDEO MODE
	AX = 4E04h
	DX = XGA handle
Return: AL = 4Eh if function supported
	AH = status
	    00h	 function successful
		BX??? = current mode
		 else error code
SeeAlso: AH=0Fh,AX=4E03h,AX=4F03h
--------V-104E05-----------------------------------
INT 10 - VESA XGA BIOS Extensions - SET FEATURE CONNECTOR STATE
	AX = 4E05h
	BX = Feature Connector State (see #0062)
	DX = XGA handle
Return: AL = 4Eh if function supported
	AH = status
	    00h	 function successful
	    else error code
SeeAlso: AX=4E00h,AX=4E06h

Bitfields for XGA Feature Connector State:
Bit(s)	Description	(Table 0062)
 0	Feature Connector is enabled
 1	Feature Connector is in Output Mode rather than Input Mode
 2-15	reserved (0)
--------V-104E06-----------------------------------
INT 10 - VESA XGA BIOS Extensions - RETURN FEATURE CONNECTOR STATE
	AX = 4E06h
	DX = XGA handle
Return: AL = 4Eh if function supported
	AH = status
	    00h	 function successful
	    else error code
	BX = Feature Connector State (see #0062)
SeeAlso: AX=4E00h,AX=4E05h
--------V-104F00-----------------------------
INT 10 - VESA SuperVGA BIOS - GET SuperVGA INFORMATION
	AX = 4F00h
	ES:DI -> buffer for SuperVGA information (see #0063)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
		ES:DI buffer filled
	    01h failed
Desc:	determine whether VESA BIOS extensions are present and the capabilities
	  supported by the display adapter
SeeAlso: AX=4E00h,AX=4F01h,AX=7F00h,AX=A00Ch
Index:	installation check;VESA SuperVGA

Format of SuperVGA information:
Offset	Size	Description	(Table 0063)
 00h  4 BYTEs	signature ("VESA")
 04h	WORD	VESA version number (one-digit minor version)
 06h	DWORD	pointer to OEM name
		"761295520" for ATI
 0Ah	DWORD	capabilities flags (see #0064)
 0Eh	DWORD	pointer to list of supported VESA and OEM video modes
		(list of words terminated with FFFFh)
 12h	WORD	total amount of video memory in 64K blocks
---VBE v1.x ---
 14h 236 BYTEs	reserved
---VBE v2.0 ---
 14h	WORD	OEM software version
 16h	DWORD	pointer to vendor name
 1Ah	DWORD	pointer to product name
 1Eh	DWORD	pointer to product revision string
 22h 222 BYTEs	reserved
100h 256 BYTEs	OEM scratchpad
Notes:	the list of supported video modes is stored in the reserved portion of
	  the SuperVGA information record by some implementations, and it may
	  thus be necessary to either copy the mode list or use a different
	  buffer for all subsequent VESA calls
	the 1.1 VESA document specifies 242 reserved bytes at the end, so the
	  buffer should be 262 bytes to ensure that it is not overrun; for
	  v2.0, the buffer should be 512 bytes

Bitfields for VESA capabilities:
Bit(s)	Description	(Table 0064)
 0	DAC can be switched into 8-bit mode
 1	non-VGA controller
 2	programmed DAC with blank bit
--------V-104F01-----------------------------
INT 10 - VESA SuperVGA BIOS - GET SuperVGA MODE INFORMATION
	AX = 4F01h
	CX = SuperVGA video mode
	ES:DI -> 256-byte buffer for mode information (see #0065)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
		ES:DI buffer filled
	    01h failed
Desc:	determine the attributes of the specified video mode
SeeAlso: AX=4F00h,AX=4F02h

Format of VESA SuperVGA mode information:
Offset	Size	Description	(Table 0065)
 00h	WORD	mode attributes (see #0066)
 02h	BYTE	window attributes, window A (see #0067)
 03h	BYTE	window attributes, window B (see #0067)
 04h	WORD	window granularity in KB
 06h	WORD	window size in KB
 08h	WORD	start segment of window A
 0Ah	WORD	start segment of window B
 0Ch	DWORD	-> FAR window positioning function (equivalent to AX=4F05h)
 10h	WORD	bytes per scan line
---remainder is optional for VESA modes in v1.0/1.1, needed for OEM modes---
 12h	WORD	width in pixels (graphics) or characters (text)
 14h	WORD	height in pixels (graphics) or characters (text)
 16h	BYTE	width of character cell in pixels
 17h	BYTE	height of character cell in pixels
 18h	BYTE	number of memory planes
 19h	BYTE	number of bits per pixel
 1Ah	BYTE	number of banks
 1Bh	BYTE	memory model type (see #0068)
 1Ch	BYTE	size of bank in KB
 1Dh	BYTE	number of image pages
 1Eh	BYTE	reserved (0)
---VBE v1.2+---
 1Fh	BYTE	red mask size
 20h	BYTE	red field position
 21h	BYTE	green mask size
 22h	BYTE	green field size
 23h	BYTE	blue mask size
 24h	BYTE	blue field size
 25h	BYTE	reserved mask size
 26h	BYTE	reserved mask position
 27h	BYTE	direct color mode info
---VBE v2.0 ---
 28h	DWORD	physical address of linear video buffer
 2Ch	DWORD	pointer to start of offscreen memory
 30h	WORD	KB of offscreen memory
 32h 206 BYTEs	reserved (0)

Bitfields for VESA SuperVGA mode attributes:
Bit(s)	Description	(Table 0066)
 0	mode supported
 1	optional information available
 2	BIOS output supported
 3	set if color, clear if monochrome
 4	set if graphics mode, clear if text mode
---VBE v2.0 ---
 5	mode is not VGA-compatible
 6	bank-switched mode not supported
 7	linear framebuffer mode supported

Bitfields for VESA SuperVGA window attributes:
Bit(s)	Description	(Table 0067)
 0	exists
 1	readable
 2	writable
 3-7	reserved

(Table 0068)
Values for VESA SuperVGA memory model type:
 00h	text
 01h	CGA graphics
 02h	HGC graphics
 03h	16-color (EGA) graphics
 04h	packed pixel graphics
 05h	"sequ 256" (non-chain 4) graphics
 06h	direct color (HiColor, 24-bit color)
 07h	YUV (luminance-chrominance, also called YIQ)
 08h-0Fh reserved for VESA
 10h-FFh OEM memory models
--------V-104F02-----------------------------
INT 10 - VESA SuperVGA BIOS - SET SuperVGA VIDEO MODE
	AX = 4F02h
	BX = mode (see #0069,#0070)
		 bit 15 set means don't clear video memory
	    bit 14 set means enable linear framebuffer mode (VBE v2.0+)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
SeeAlso: AX=4E03h,AX=4F01h,AX=4F03h

(Table 0069)
Values for VESA video mode:
 00h-FFh OEM video modes (see #0009 at AH=00h)
 100h	640x400x256
 101h	640x480x256
 102h	800x600x16
 103h	800x600x256
 104h	1024x768x16
 105h	1024x768x256
 106h	1280x1024x16
 107h	1280x1024x256
 108h	80x60 text
 109h	132x25 text
 10Ah	132x43 text
 10Bh	132x50 text
 10Ch	132x60 text
---VBE v1.2---
 10Dh	320x200x32K
 10Eh	320x200x64K
 10Fh	320x200x16M
 110h	640x480x32K
 111h	640x480x64K
 112h	640x480x16M
 113h	800x600x32K
 114h	800x600x64K
 115h	800x600x16M
 116h	1024x768x32K
 117h	1024x768x64K
 118h	1024x768x16M
 119h	1280x1024x32K
 11Ah	1280x1024x64K
 11Bh	1280x1024x16M
SeeAlso: #0009,#0070
Index:	video modes;VESA

(Table 0070)
Values for S3 OEM video mode:
 201h	640x480x256
 202h	800x600x16
 203h	800x600x256
 204h	1024x768x16
 205h	1024x768x256
 206h	1280x960x16
 207h	1152x864x256 (Diamond Stealth 64)
 208h	1280x1024x16
 20Ah	1152x864x64K (Diamond Stealth 64)
 211h	640x480x64K (Diamond Stealth 24)
 212h	640x480x16M (Diamond Stealth 24)
 301h	640x480x32K
Note:	these modes are only available on video cards using S3's VESA driver
SeeAlso: #0069
Index:	video modes;S3
--------V-104F03-----------------------------
INT 10 - VESA SuperVGA BIOS - GET CURRENT VIDEO MODE
	AX = 4F03h
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
		BX = video mode (see #0069,#0070)
	    01h failed
SeeAlso: AH=0Fh,AX=4E04h,AX=4F02h
--------V-104F04-----------------------------
INT 10 - VESA SuperVGA BIOS - SAVE/RESTORE SuperVGA VIDEO STATE
	AX = 4F04h
	DL = subfunction
	    00h get state buffer size
		Return: BX = number of 64-byte blocks needed
	    01h save video states
		ES:BX -> buffer
	    02h restore video states
		ES:BX -> buffer
	CX = states to save/restore (see #0071)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed

Bitfields for VESA SuperVGA states to save/restore:
Bit(s)	Description	(Table 0071)
 0	video hardware state
 1	video BIOS data state
 2	video DAC state
 3	SuperVGA state
--------V-104F05-----------------------------
INT 10 - VESA SuperVGA BIOS - CPU VIDEO MEMORY CONTROL
	AX = 4F05h
	BH = subfunction
	    00h select video memory window
		DX = window address in video memory (in granularity units)
	    01h get video memory window
		Return: DX = window address in video memory (in gran. units)
	BL = window number
	    00h window A
	    01h window B
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
SeeAlso: AX=4F01h,AX=4F06h,AX=4F07h,AX=7000h/BX=0004h
--------V-104F06-----------------------------
INT 10 - VESA SuperVGA BIOS v1.1+ - GET/SET LOGICAL SCAN LINE LENGTH (PIXELS)
	AX = 4F06h
	BL = function
	    00h set scan line length
		CX = desired width in pixels
	    01h get scan line length
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
	BX = bytes per scan line
	CX = number of pixels per scan line
	DX = maximum number of scan lines
Notes:	if the desired width is not achievable, the next larger width will be
	  set
	the scan line may be wider than the visible area of the screen
	this function is valid in text modes, provided that pixel values are
	  multiplied by the character cell width/height
SeeAlso: AX=4F01h,AX=4F05h,AX=4F06h/BL=02h,AX=4F06h/BL=03h,AX=4F07h
--------V-104F06BL02-------------------------
INT 10 - VESA SuperVGA BIOS v2.0+ - SET LOGICAL SCAN LINE LENGTH (BYTES)
	AX = 4F06h
	BL = 02h
	CX = desired scanline width in bytes
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
	BX = bytes per scan line
	CX = number of pixels per scan line
	DX = maximum number of scan lines
Notes:	if the desired width is not achievable, the next larger width will be
	  set
	the scan line may be wider than the visible area of the screen
	this function is valid in text modes, provided that pixel values are
	  multiplied by the character cell width/height
SeeAlso: AX=4F01h,AX=4F05h,AX=4F06h,AX=4F06h/BL=03h,AX=4F07h
--------V-104F06BL03-------------------------
INT 10 - VESA SuperVGA BIOS v2.0+ - GET MAXIMUM SCAN LINE LENGTH
	AX = 4F06h
	BL = 03h
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
	BX = maximum bytes per scan line
	CX = maximum number of pixels per scan line
Notes:	this function is valid in text modes, provided that pixel values are
	  multiplied by the character cell width/height
SeeAlso: AX=4F01h,AX=4F05h,AX=4F06h,AX=4F06h/BL=02h,AX=4F07h
--------V-104F07-----------------------------
INT 10 - VESA SuperVGA BIOS v1.1+ - GET/SET DISPLAY START
	AX = 4F07h
	BL = function
	    00h,80h set display start
		CX = leftmost displayed pixel in scan line
		DX = first displayed scan line
	    01h get display start
		Return: BH = 00h
			CX = leftmost displayed pixel in scan line
			DX = first displayed scan line
	BH = 00h (reserved)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
Notes:	this function is valid in text modes, provided that values are
	  multiplied by the character cell width/height
	subfunction 80h waits until vertical retrace before changing the
	  display start address (VBE v2.0+)
SeeAlso: AX=4F01h,AX=4F05h,AX=4F06h
--------V-104F08-----------------------------
INT 10 - VESA SuperVGA BIOS v1.2+ - GET/SET DAC PALETTE CONTROL
	AX = 4F08h
	BL = function
	    00h set DAC palette width
		BH = desired number of bits per primary color
	    01h get DAC palette width
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
	BH = current number of bits per primary (06h = standard VGA)
--------V-104F09-----------------------------
INT 10 - VESA SuperVGA BIOS v2.0+ - SET PALETTE ENTRIES
	AX = 4F09h
	BL = function
	    00h set palette
	    80h set palette during vertical retrace
	CX = number of entries to change
	DX = starting palette index
	ES:DI -> palette buffer (see #0072)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed

Format of VESA VBE palette entry:
Offset	Size	Description	(Table 0072)
 00h	BYTE	red
 01h	BYTE	green
 02h	BYTE	blue
 03h	BYTE	alpha or alignment byte
--------V-104F0A-----------------------------
INT 10 - VESA SuperVGA BIOS v2.0+ - GET PROTECTED-MODE CODE
	AX = 4F0Ah
	BX = function to be copied (see #0073)
Return: AL = 4Fh if function supported
	AH = status
	    00h successful
		CX = number of bytes to copy
		ES:DI -> code for requested function
	    01h failed

(Table 0073)
Values for VESA VBE protected-mode function identifiers:
 0001h	set bank (see AX=4F05h)
 0002h	set display start (see AX=4F07h)
 0003h	set palette (see AX=4F09h)
--------p-104F10BL00-------------------------
INT 10 - VESA VBE/PM (Power Management) v1.0+ - GET CAPABILITIES
	AX = 4F10h
	BL = 00h
	ES:DI = 0000h:0000h (reserved for future use)
Return: AL = 4Fh if function supported (installed)
	AH = call status
	    00h successful
	    else failed
	---if successful---
	BL = VBE/PM version (bits 7-4: major, bits 3-0: minor)
	BH = supported states (see #0074)
	ES:DI unchanged
Index:	installation check;VESA VBE/Power Management
SeeAlso: AX=4F10h/BL=01h,AX=4F10h/BL=02h

Bitfields for VESA VBE/PM supported power states:
Bit(s)	Description	(Table 0074)
 0	standby
 1	suspend
 2	off
 3	reduced on
--------p-104F10BL01-------------------------
INT 10 - VESA VBE/PM (Power Management) v1.0+ - SET DISPLAY POWER STATE
	AX = 4F10h
	BL = 01h
	BH = new state (see #0075)
Return: AL = 4Fh if function supported
	AH = call status
	    00h successful
	    else failed
SeeAlso: AX=4F10h/BL=00h,AX=4F10h/BL=02h,AX=A00Ch

(Table 0075)
Values for VESA VBE/PM power state:
 00h	On
 01h	standby
 02h	suspend
 04h	Off
 08h	reduced On (for flat screens)
--------p-104F10BL02-------------------------
INT 10 - VESA VBE/PM (Power Management) v1.0+ - GET DISPLAY POWER STATE
	AX = 4F10h
	BL = 02h
Return: AL = 4Fh if function supported
	AH = call status
	    00h successful
	       BH = current power state (see #0075)
	    else failed
SeeAlso: AX=4F10h/BL=00h,AX=4F10h/BL=01h
--------s-104F13BX0000-----------------------
INT 10 - VESA Audio Interface - VBE/AI INSTALLATION CHECK
	AX = 4F13h
	BX = 0000h
Return:	AL = 4Fh if function supported
	    AH = status
		00h successful
		    BX = version (0010h for 1.00 -- note nonstandard value!)
		01h failed
SeeAlso: AX=4F13h/BX=0001h,AX=4F13h/BX=0005h
--------s-104F13BX0001-----------------------
INT 10 - VESA Audio Interface - LOCATE DEVICE
	AX = 4F13h
	BX = 0001h
	CX = 0000h ???
	DX = type of device
	    0001h Wave device
	    0002h MIDI device
	    0003h Volume device
Return:	AL = 4Fh if function supported
	AH = status
	    00h successful
		CX = handle [returned 1 for DX=1 and 3, and 2 for DX=2]
	    01h failed
SeeAlso: AX=4F13h/BX=0000h,AX=4F13h/BX=0002h
--------s-104F13BX0002-----------------------
INT 10 - VESA Audio Interface - QUERY DEVICE
	AX = 4F13h
	BX = 0002h
	CX = handle
	DX = query
	    0001h return length of GeneralDeviceClass
	    0002h return copy	of GeneralDeviceClass (see #0076)
	    0003h return length of Volume Info Structure
	    0004h return copy	of Volume Info Structure (see #0086)
	    0005h return length of Volume Services Structure
	    0006h return copy	of Volume Services Structure (see #0088)
	    0007h-000Fh reserved
	    0010h-FFFFh device-specific
	SI:DI -> buffer (functions 0002h,0004h,0006h)
Return:	AL = 4Fh if function supported
	AH = status
	    00h successful
		SI:DI = length (functions 1,3,5)
		SI:DI buffer filled (functions 2,4,6)
		 01h failed
Note:	functions 0003h to 0006h are only supported for the Volume device

Format of GeneralDeviceClass structure:
Offset	Size	Description	(Table 0076)
 00h	4 BYTEs	name of the structure ("GENI")
 04h	DWORD	structure length
 08h	WORD	type of device (1=Wave, 2=MIDI)
 0Ah	WORD	version of VESA driver support (0100h for 1.00)
 10h	var	for CX=handle for Wave device:
		    Wave Info structure (see #0077)
		    some bytes ???
		for CX=handle for MIDI device:
		    MIDI Info Structure (see #0082)
		    first 8 bytes of MIDI Service Structure ???
SeeAlso: #0086,#0088

Format of WAVE Info Structure:
Offset	Size	Description	(Table 0077)
 00h	4 BYTEs	name of the structure ("WAVI")
 04h	DWORD	structure length [0000007Eh]
 08h	DWORD	driver software version [00000003h]
 0Ch 32 BYTEs	vendor name, etc. (ASCIZ string)
 2Ch 32 BYTEs	vendor product name
 4Ch 32 BYTEs	vendor chip/hardware description
 6Ch	BYTE	installed board number
 6Dh	3 BYTEs	unused data
 70h	DWORD	feature bits (see #0078)
 74h	WORD	user determined preference field
 76h	WORD	memory required for driver use [0200h]
 78h	WORD	number of timer tick callbacks per second [0000h]
 7Ah	WORD	channels: 1 = mono, 2 = stereo
		stereo is assumed to be interleaved data
 7Ch	WORD	bitfield of max sample sizes (see #0079)
SeeAlso: #0082

Bitfields for Wave feature bits:
Bit(s)	Description	(Table 0078)
 0	8000hz Mono Playback
 1	8000hz Mono Record
 2	8000hz Stereo Record
 3	8000hz Stereo Playback
 4	8000hz Full Duplex Play/Record
 5	11025hz Mono Playback
 6	11025hz Mono Record
 7	11025hz Stereo Record
 8	11025hz Stereo Playback
 9	11025hz Full Duplex Play/Record
 10	22050hz Mono Playback
 11	22050hz Mono Record
 12	22050hz Stereo Record
 13	22050hz Stereo Playback
 14	22050hz Full Duplex Play/Record
 15	44100hz Mono Playback
 16	44100hz Mono Record
 17	44100hz Stereo Record
 18	44100hz Stereo Playback
 19	44100hz Full Duplex Play/Record
 20-26	reserved (0)
 27	driver must pre-handle the data
 28	Variable Sample mono   playback
 29	Variable Sample stereo playback
 30	Variable Sample mono   record
 31	Variable Sample stereo record

(Table 0079)
Values for Sample data size:
 01h	8bit play
 02h	16bit play
 10h	8bit record
 20h	16bit record

Format of WAVE Audio Services structure:
Offset	Size	Description	(Table 0080)
 00h	4 BYTEs	name of the structure
 04h	DWORD	structure length
 08h 16 BYTEs	for future expansion
---entry points (details???)---
 18h	DWORD	DeviceCheck
		11h compression (see also #0081)
		12h driver state
		13h get current pos
		14h sample rate	      
		15h set preference
		16h get DMA,IRQ
		17h get IO address
		18h get mem address
		19h get mem free
		1Ah full duplex
		1Bh get block size
		1Ch get PCM format
		1Dh enable PCM format
		80h-.. vendors can add DevChks above 0x80
 1Ch	DWORD	PCMInfo
 20h	DWORD	PlayBlock
 24h	DWORD	PlayCont
 28h	DWORD	RecordBlock
 2Ch	DWORD	RecordCont
 30h	DWORD	PauseIO
 34h	DWORD	ResumeIO
 38h	DWORD	StopIO
 3Ch	DWORD	WavePrepare
 40h	DWORD	WaveRegister
 44h	DWORD	GetLastError
		01h unsupported feature/function
		02h bad sample rate
		03h bad block length
		04h bad block address
		05h app. missed an IRQ
		06h don't understand the PCM size/format
		80h-.. vendors specific errors
 48h	DWORD	TimerTick
 4Ch	DWORD	ApplPSyncCB: CallBack: play filled in by the app
 50h	DWORD	ApplRSyncCB: CallBack: rec filled in by the app
SeeAlso: #0084,#0088

(Table 0081)
Values for type of compression:
 01h	IMA play
 02h	ALAW play
 03h	ULAW play
 11h	IMA record
 12h	ALAW record 
 13h	ULAW record

Format of MIDI Info Structure:
Offset	Size	Description	(Table 0082)
 00h	4 BYTEs	name of the structure ("MIDI")
 04h	DWORD	structure length
 08h	DWORD	driver software version [00000003h]
 0Ch 32 BYTEs	vendor name, etc. (ASCIZ string)
 2Ch 32 BYTEs	vendor product name
 4Ch 32 BYTEs	vendor chip/hardware description
 6Ch	BYTE	installed board number
 6Dh	3 BYTEs	unused data
 70h 14 BYTEs	the patch library file name [OPL2.BNK 00..]
 7Eh	DWORD	feature bits (see #0083)
 80h	WORD	user determined preference field
 82h	WORD	memory required for driver use
 84h	WORD	# of timer tick callbacks per second
 86h	WORD	max # of tones (voices, partials)
SeeAlso: #0076,#0084,#0086

Bitfields for MIDI feature bits:
Bit(s)	Description	(Table 0083)
 0-3	reserved for GM extensions
 4	Transmitter/Receiver only
 5	Patches preloaded
 6	MIDI receive has time stamp
 8	MIDI interrupt driven input supported
 9	MIDI polled input supported
 10	MIDI remote patches supported

Format of MIDI Service structure:
Offset	Size	Description	(Table 0084)
 00h	4 BYTEs	name of the structure ("MIDS")
 04h	DWORD	structure length
 08h 16 WORDs	patches loaded table bit field
 28h 16 BYTEs	for future expansion
---entry points (details???)---
 38h	DWORD	device check
		11h return available tones
		12h return TRUE/FALSE if patch is understood
		13h set preference
		14h allow/disallow voice stealing
		15h get FIFO sizes
		16h get DMA,IRQ
		17h get IO address
		18h get mem address
		19h get mem free
		80h-.. vendors can add DevChks above 0x80
 3Ch	DWORD	global reset
 40h	DWORD	MIDI msg
 44h	DWORD	poll MIDI
 48h	DWORD	preload patch
 4Ch	DWORD	unload patch
 50h	DWORD	timer tick
 54h	DWORD	get last error
		01h unsupported feature/function
		02h unknown patch type (see #0085)
		03h all tones are used
		04h messages are out of sync
		05h an incoming patch was incomplete
		06h an incoming patch couldn't be stored
		07h had to drop an incoming byte
		08h driver is failing a patch download
		80h-.. vendors specific errors
 58h	DWORD	Patch Block free callback
 5Ch	DWORD	MIDI byte avail. callback
SeeAlso: #0080,#0088

(Table 0085)
Values for MIDI Registered Patch Types:
 10h	OPL2
 11h	OPL3

Format of Volume Info Structure:
Offset	Size	Description	(Table 0086)
 00h  4	BYTEs	name of the structure ("VOLI")
 04h	DWORD	structure length (00000092h)
 08h	DWORD	driver software version [00000001h]
 0Ch 32 BYTEs	vendor name, etc. (ASCIZ string)
 2Ch 32 BYTEs	vendor product name
 4Ch 32 BYTEs	vendor chip/hardware description
 6Ch	BYTE	installed board number (0 for 1st/only board)
 6Dh  3	BYTEs	unused data (0)
 70h 24 BYTEs	text name of the mixer channel
 88h	DWORD	features bits (see #0087)
 8Ch	WORD	minimum volume setting
 8Eh	WORD	maximum volume setting
 90h	WORD	attenuation/gain crossover
SeeAlso: #0076,#0088

Bitfields for Volume feature bits:
Bit(s)	Description	(Table 0087)
 0	Stereo Volume control available
 2	Low Pass Filter is available
 3	High Pass Filter is available
 4	Parametric Tone Control is available
 5	selectable output paths
 8	Azimuth Field positioning supported
 9	Phi Field positioning supported
 10-30	unused???
 31	Master Volume device

Format of Volume Services Structure:
Offset	Size	Description	(Table 0088)
 00h	4 BYTEs	name of the structure ("VOLS")
 04h	DWORD	structure length (00000038h)
 08h 16 BYTEs	16 bytes for future expansion (0)
---entry points (details???)---
 18h	DWORD	device check
		0011h filter range
		0012h filter setting
		0013h filter current
		0014h tone range
		0015h tone setting
		0016h tone current
		0017h path
		0018h get IO address
		0080h-.. vendors can add DevChks above 0x80
 1Ch	DWORD	set vol to an absolute setting
		01h User master volume setting
		02h application master volume setting
 20h	DWORD	set 3D volume
 24h	DWORD	tone control
 28h	DWORD	filter control
 2Ch	DWORD	output path
 30h	DWORD	reset channel
 34h	DWORD	get last error
		01h unsupported feature/function
		02h out of range parameter value
		80h+ vendor-specific errors
SeeAlso: #0080,#0084
--------s-104F13BX0003-----------------------
INT 10 - VESA Audio Interface - OPEN DEVICE
	AX = 4F13h
	BX = 0003h
	CX = handle
	DX = API set (16/32-bit)
	SI = segment ???
Return:	AL = 4Fh if function supported
	AH = status
	    00h successful
		SI:CX -> memory ???
	    01h failed
SeeAlso: AX=4F13h/BX=0000h,AX=4F13h/BX=0002h,AX=4F13h/BX=0004h
--------s-104F13BX0004-----------------------
INT 10 - VESA Audio Interface - CLOSE DEVICE
	AX = 4F13h
	BX = 0004h
	CX = handle
Return:	AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
SeeAlso: AX=4F13h/BX=0000h,AX=4F13h/BX=0003h,AX=4F13h/BX=0005h
--------s-104F13BX0005-----------------------
INT 10 - VESA Audio Interface - UNINSTALL DRIVER
	AX = 4F13h
	BX = 0005h
Return:	AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
SeeAlso: AX=4F13h/BX=0000h,AX=4F13h/BX=0006h
--------s-104F13BX0006-----------------------
INT 10 - VESA Audio Interface - DRIVER CHAIN/UNCHAIN
	AX = 4F13h
	BX = 0006h
Return:	AL = 4Fh if function supported
	AH = status
	    00h successful
	    01h failed
SeeAlso: AX=4F13h/BX=0000h,AX=4F13h/BX=0005h
----------104F4D-----------------------------
INT 10 - VESA - VIDEO CURSOR INTERFACE REQUEST
	AX = 4F4Dh
	BX = number of bytes available for VCI use
	DS:0000h -> buffer for VCI
	ES:DI -> VCI driver callback function
Return: AL = 4Fh if supported
	    AH = status
		00h successful
		    BX = number of bytes used by VCI
		    ES:DI -> VCI request handler
		01h failed
Desc:	allow the VESA BIOS Extensions to cooperate with a pointing-device
	  (typically mouse) driver
--------V-104FFF-----------------------------
INT 10 - VESA SuperVGA BIOS - Everex - TURN VESA ON/OFF
	AX = 4FFFh
	DL = new state (00h off, 01h on)
Return: AX = 0000h if successful
--------V-104FFF-----------------------------
INT 10 - Diamond Stealth 24 - SET/RESET DUAL DISPLAY MODE
	AX = 4FFFh
	BX = dual display mode
	    00h reset
	    01h set dual display, 32KB VGA test
	    02h set dual display, 64KB VGA test
Return: AX = 4F00h if successful
		 BX = number of scanlines off screen for test mode
--------U-1050-------------------------------
INT 10 - SCROLOCK.COM - INSTALLATION CHECK
	AH = 50h
Return: BX = 1954h if installed
	    AL = 00h if inactive, nonzero if active
Program: SCROLOCK is a utility supplied with System Enhancement Associates' ARC
SeeAlso: AH=51h
--------J-105000-----------------------------
INT 10 - VIDEO - AX PC - SET SCREEN COUNTRY CODE
	AX = 5000h
	BX = country code
	    0001h USA (English), 0051h Japan
Return: AL = status
	    00h successful
	    01h bad country code
	    02h other error
SeeAlso: AX=5001h,INT 16/AX=5000h
--------J-105001-----------------------------
INT 10 - VIDEO - AX PC - GET SCREEN COUNTRY CODE
	AX = 5001h
Return: AL = status
	    00h successful
		BX = country code
	    02h error
SeeAlso: AH=00h,AX=5000h,INT 16/AX=5001h,INT 21/AH=38h
--------V-105049-----------------------------
INT 10 - VIDEO - SCREENR v1.55+ - API
	AX = 5049h ('PI')
	BX = function
	    0000h installation check
	    0001h lock mode
	    0002h unlock mode
	    0003h lock palette
	    0004h unlock palette
Return: AX = 0000h if installed
	    BX = TSR version (BH=major,BL=minor)
	    CL = mode locking status
		00h mode not locked
		01h mode locked: INT 10/AH=00h disabled
	    CH = palette locking status
		00h palette not locked
		01h palette locked, the following functions are disabled:
			AX=1000h, AX=1001h, AX=1002h, AX=1010h, AX=1012h
Program: SCREENR is a TSR supplied with Patrick Ibbetson's SCREEN display
	  utility.
Index:	installation check;SCREENR
--------U-1051-------------------------------
INT 10 - SCROLOCK.COM - ENABLE/DISABLE
	AH = 51h
	AL = state
	    00h disable
	    nonzero enable
Program: SCROLOCK is a utility supplied with System Enhancement Associates' ARC
SeeAlso: AH=50h"SCROLOCK"
--------J-105100-----------------------------
INT 10 - VIDEO - AX PC - REGISTER EXTERNAL CHARACTER
	AX = 5100h
	BH = character width in bits (10h)
	BL = character height (10h)
	DX = character code (DH = F0h-F3h, DL=40h-7Eh,80h-FCh)
	ES:BP -> character bitmap
Return: AL = status (00h successful, 01h failed)
SeeAlso: AX=5101h,INT 1F
--------J-105101-----------------------------
INT 10 - VIDEO - AX PC - READ CHARACTER
	AX = 5101h
	BH = character width in bits
	BL = character height
	DX = character code (DH = 00h if 8-bit character)
	ES:BP -> buffer for character bitmap
Return: AL = status (00h successful, 01h failed)
SeeAlso: AH=09h,AX=5100h
--------J-105200-----------------------------
INT 10 - VIDEO - AX PC - SET VIRTUAL TEXT RAM BUFFER
	AX = 5200h
	BX = segment of buffer
SeeAlso: AX=5201h
--------J-105201-----------------------------
INT 10 - VIDEO - AX PC - GET VIRTUAL TEXT RAM BUFFER
	AX = 5201h
Return: BX = segment of buffer or 0000h if failed
SeeAlso: AX=8300h,AH=FEh
----------1053-------------------------------
INT 10 - Show Partner F/X v3.6 - START PRESENTATION
	AH = 53h
	DS:DX -> ASCIZ name of presentation file (no path, extension forced to
		.PR2)
Return: ???
SeeAlso: AH=55h
----------1055-------------------------------
INT 10 - Show Partner F/X v3.6 - UNINSTALL
	AH = 55h
Return: FXSHOW.EXE removed from memory
SeeAlso: AH=53h
--------V-105555-----------------------------
INT 10 - VIDEO - ATI EGA/VGA Wonder Super Switch - INSTALLATION CHECK
	AX = 5555h
Return: AX = AAAAh    if installed
	BX:CX -> ??? routine in SMS.COM resident portion
	      -> data area (see #0089) in VCONFIG
Program: Super Switch (SMS.COM) is a video mode switch program supplied with
	  ATI EGA Wonder. It also maps video mode 08h to 27h or 23h.
SeeAlso: INT 10/AH=00h,INT 14/AX=AA01h,INT 2F/AX=6400h
Index:	screen saver;ATI Wonder SMS.COM

Format of ATI Super Switch data area:
Offset	Size	Description	(Table 0089)
 00h	DWORD	original INT 09 vector
 04h	DWORD	original INT 10 vector
 08h	DWORD	original INT 1C vector
 0Ch	WORD	screen saver state, 0=off, 1=on
 0Eh	WORD	blanking interval in clock ticks
--------V-105F00-----------------------------
INT 10 - Chips & Technologies Extended BIOS - RETURN 82C45X CHIP INFORMATION
	AX = 5F00h
Return: AL = 5Fh function supported
	    BL = chip type (see #0090)
	    BH = video memory size (00h 256KB, 01h 512KB, 02h 1MB)
	    CX = miscellaneous information (see #0091)
SeeAlso: AX=5F01h

Bitfields for Chips&Technologies chip type:
Bit(s)	Description	(Table 0090)
 7-4	chip type
	0000: 82c451
	0001: 82c452
	0010: 82c455
	0011: 82c453
	0101: 82c456
	0110: 82c457
	0111: F65520
	1000: F65530
 3-0	revision number

Bitfields for Chips&Technologies miscellaneous information:
Bit(s)	Description	(Table 0091)
 0	DAC size (0=6-bit, 1=8-bit)
 1	system type (0=PC/AT, 1=PS/2)
 2	extended text modes supported by BIOS
 3	reserved
 4	extended graphics modes supported by BIOS
 5	reserved
 6	BIOS supports graphics cursor
 7	BIOS supports anti-aliased font
 8	BIOS supports pre-programmed emulation
 9	BIOS supports auto emulation
 10	BIOS supports variable mode set at cold boot
 11	BIOS supports variable mode set on warm boot
 12	BIOS supports emulation mode set at cold boot
 13	BIOS supports emulation mode set on warm boot
 14-15	reserved
--------V-105F00-----------------------------
INT 10 - VIDEO - Realtek RTVGA - RETURN CHIP VERSION
	AX = 5F00h
Return: AH = 00h, if successful
	AL = chip version (the same value that VTEST.EXE reads)
	    00h RTG3103???
	    01h RTG31030/RTG3105
	    02h RTG3106???
	    3Fh non-Realtek chip
BUG:	in v3.C10, AX=5F00h on return due to improper stack restoration code
SeeAlso: AX=5F01h"RTVGA"
--------V-105F01-----------------------------
INT 10 - Chips & Technologies Extended BIOS - SET PREPROGRAMMED EMULATION
	AX = 5F01h
	BL = emulation type (see #0092)
Return: AL = 5Fh if function supported
	    AH = status
		00h unsuccessful
		01h successful
SeeAlso: AX=5F00h,AX=5F02h,AH=FFh"Oak"

(Table 0092)
Values for Chips&Technologies emulation type:
 00h,01h reserved
 02h	CGA
 03h	MDA
 04h	Hercules
 05h	EGA
 06h	VGA
--------V-105F01-----------------------------
INT 10 - VIDEO - Realtek RTVGA - WRITE RTVGA BIOS STRING TO DESTINATION
	AX = 5F01h
	ES:DI -> zero-filled buffer for BIOS ID string
Return: AH = 00h if successful
	ES:DI -> ASCII signature "REALTEK VGA BIOS Version 3C.10"
BUG:	in v3.C10, AX=5F01h on return due to improper stack restoration code
SeeAlso: AX=5F00h"RTVGA",AX=5F02h"RTVGA"
--------V-105F02-----------------------------
INT 10 - Chips & Technologies Extended BIOS - AUTO EMULATION CONTROL
	AX = 5F02h
	BL = new state of autmatic emulation (00h enabled, 01h disabled)
Return: AL = 5Fh if function supported
	    AH = status
		00h unsuccessful
		01h successful
SeeAlso: AX=5F01h,AX=5F03h
--------V-105F02-----------------------------
INT 10 - VIDEO - Realtek RTVGA - RETURN RTVGA ON-BOARD MEMORY SIZE
	AX = 5F02h
Return: AH = 00h, if successful
	AL = on-board memory size
	     (00h = 256K, 01h = 512K, 02h = 768K, 03h = 1024K)
BUG:	in v3.C10, AX=5F02h on return due to improper stack restoration code
SeeAlso: AX=5F01h"RTVGA",AX=5F03h"RTVGA"
--------V-105F03-----------------------------
INT 10 - VIDEO - Realtek RTVGA - SET ???
	AX = 5F03h
	BL = 0-3 (???)
Return: AH = 00h if successful
BUG:	in v3.C10, AX=5F03h on return due to improper stack restoration code
SeeAlso: AX=5F02h"RTVGA"
--------V-105F03-----------------------------
INT 10 - Chips & Technologies Extended BIOS - SET POWER-ON VIDEO CONDITIONS
	AX = 5F03h
	BL = configuration
	    00h power-up display mode
		CL = display mode
		CH = mode (see #0093)
	    01h power-up emulation mode
		CL = emulation mode (see #0092)
		CH = permanence (00h reset after next boot, 01h until changed)
Return: AL = 5Fh if function supported
	    AH = status
		00h unsuccessful
		01h successful
SeeAlso: AX=5F02h,AX=5F03h/BL=01h,AX=5F90h

Bitfields for Chips&Technologies display mode:
Bit(s)	Description	(Table 0093)
 1-0	scanlines (00 = 200, 01 = 350, 10 = 400)
 7	persistence (0 reset on next boot, 1 until changed)
--------V-105F03BL01-------------------------
INT 10 - Chips & Technologies Extended BIOS - SET POWER-ON EMULATION MODE
	AX = 5F03h
	BL = 01h
	CL = emulation mode
	CH = mode
	    bit 7 persistence (0 reset on next boot, 1 until changed)
Return: AL = 5Fh if function supported
	    AH = status
		00h unsuccessful
		01h successful
SeeAlso: AX=5F02h,AX=5F03h/BL=00h,AX=5F90h
--------V-105F-------------------------------
INT 10 - Chips & Technologies Extended BIOS - SAVE/RESTORE SUPERVGA STATE
	AH = 5Fh
	AL = subfunction
	    90h determine size of save buffer
	    91h save state
	    92h restore state
	CX = state mask (see #0094)
	ES:BX -> save buffer (subfunctions 91h,92h only)
Return: AL = 5Fh if function supported
	    ---subfunction 90h---
		BX = number of 64-byte blocks required
	    ---subfunction 92h---
		buffer at ES:BX filled
SeeAlso: AH=1Ch,AX=5F03h

Bitfields for Chips&Technologies state mask:
Bit(s)	Description	(Table 0094)
 0	video hardware
 1	BIOS data state
 2	DAC state
 15	type (0 all state info, 1 SuperVGA state only)
--------V-1060------------------------------------
INT 10 - HUNTER 16 - SET GRAPHICS FONT
	AH = 60h
	AL = new font
	    bit 7    output characters in reverse video
	    bits 0-6 font number (see #0108 at AH=77h)
Return: BH = cell width			
	BL = cell height
Desc:	select the font to use for output in mode 6; this can be used to mix
	  fonts on the screen
Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=04h"HUNTER",AH=73h"HUNTER",AH=77h"HUNTER"
--------V-1061------------------------------------
INT 10 - HUNTER 16 - MOVE CURSOR TO GRAPHICS CO-ORDINATES
	AH = 61h
	CX = column
	DX = row
Note:	this function is only valid in graphics modes
SeeAlso: AH=62h
--------V-1062------------------------------------
INT 10 - HUNTER 16 - GET CURSOR POSITION IN GRAPHICS CO-ORDINATES
	AH = 62h
Return: CX = column
	DX = row
Note:	this function is only valid in graphics modes
SeeAlso: AH=61h
--------V-1063------------------------------------
INT 10 - HUNTER 16 - SET CONTRAST
	AH = 63h
	AL = contrast (0..127)
Desc:	set the LCD screen contrast to improve visibility
SeeAlso: AH=64h,AH=75h
--------V-1064------------------------------------
INT 10 - HUNTER 16 - SET BACKLIGHT LEVEL
	AH = 64h
	AL = level (0..15)
Desc:	set the LCD backlight level to improve visibility in bad lighting
SeeAlso: AH=63h,AH=65h,AH=74h,AH=78h"HUNTER",INT 15/AH=74h
--------V-106500----------------------------------
INT 10 - HUNTER 16 - GET BACKLIGHT TIMEOUT
	AX = 6500h
Return: BX = timeout in seconds (0-300)
Desc:	returns the time after which the backlight will turn off
SeeAlso: AH=63h,AH=64h,AX=6501h,INT 15/AH=74h
--------V-106501----------------------------------
INT 10 - HUNTER 16 - SET BACKLIGHT TIMEOUT
	AX = 6501h
	BX = timeout in seconds (0-300)
Desc:	set the idle time after which the backlight will turn off
SeeAlso: AH=64h,AX=6500h
--------V-1066------------------------------------
INT 10 - HUNTER 16 - SPLIT DISPLAY
	AH = 66h
	AL = control bits (see #0095)
	BH = top row of lower section of LCD (0..7)
	BL = top row of lower section of the virtual screen (0..24)
Desc:	split the LCD screen horizontally into two parts; each part may be 
	  individually scrollable or fixed.
Note:	the Hunter 16 has a 240x64 LCD display which serves as a window into
	  a 640x200 virtual screen

Bitfields for HUNTER 16 control bits:
Bit(s)	Description	(Table 0095)
 0-1	01: no split, 10: allow split
 2	allow scrolling the upper part
 3	allow scrolling the lower part 
--------V-106A00BX0000-----------------------
INT 10 - Direct Graphics Interface Standard (DGIS) - INQUIRE AVAILABLE DEVICES
	AX = 6A00h
	BX = 0000h
	CX = 0000h
	DX = buffer length (may be 0)
	ES:DI -> buffer
Return: BX = number of bytes stored in buffer
	CX = bytes required for all descriptions (0 if no DGIS)
Note:	buffer contains descriptions and addresses of DGIS-compatible
	  display(s) and printer(s)
SeeAlso: AX=6A02h
--------V-106A01CX0000-----------------------
INT 10 - Direct Graphics Interface Standard (DGIS) - REDIRECT CHARACTER OUTPUT
	AX = 6A01h
	CX = 0000h
	ES:DI = address of device to send INT 10 output to
Return: CX = 0000h  output could not be redirected
	     else INT 10h output now routed to requested display
SeeAlso: AX=6A02h
--------V-106A02-----------------------------
INT 10 - DGIS - INQUIRE INT 10 OUTPUT DEVICE
	AX = 6A02h
	ES:DI = 0000h:0000h
Return: ES:DI = 0000h:0000h  if current display is non-DGIS
		else address of the current DGIS INT 10 display
SeeAlso: AX=6A00h,AX=6A01h
--------V-106E00-----------------------------
INT 10 - Paradise VGA internal - GET ???
	AX = 6E00h
Return: BX = 5744h ('WD') if supported
	    DH:AH:AL = last three ASCII digits of ROM serial number
	    CL = ???
	    CH = ???
SeeAlso: AX=6E04h,AX=6E05h
--------V-106E04-----------------------------
INT 10 - Paradise VGA internal - GET SCREEN SIZE AND ???
	AX = 6E04h
Return: BX = screen width (columns)
	CX = screen height (lines)
	AH = ??? (05h or FFh)
	AL = ??? (04h or video mode)
SeeAlso: AX=6E00h,AX=6E05h
--------V-106E05-----------------------------
INT 10 - Paradise VGA internal - SET MODE
	AX = 6E05h
	BL = mode
Note:	like AH=00h, AL=BL.
SeeAlso: AH=00h,AX=6E00h,AX=6E04h,AX=6F05h
--------V-106F00-----------------------------
INT 10 - HP Vectra EX-BIOS - INSTALLATION CHECK
	AX = 6F00h
	BX <> 4850h (usually set to 0000h for simplicity)
Return: BX = 4850h ('HP') indicates HP Extended BIOS video functions present
	AX destroyed
SeeAlso: AX=6F00h"Video7",AX=6F01h,AX=6F02h,AX=6F03h,AX=6F04h,AX=6F05h
SeeAlso: INT 14/AX=6F00h,INT 16/AX=6F00h,INT 17/AX=6F00h,INT 33/AX=6F00h
--------V-106F00BX0000-----------------------
INT 10 - VIDEO - Video7 VGA,VEGA VGA - INSTALLATION CHECK
	AX = 6F00h
	BX = 0000h
Return: BX = 5637h ('V7') indicates Video7 VGA/VEGA VGA extensions are present
SeeAlso: AX=6F01h,AX=6F02h,AX=6F03h,AX=6F04h,AX=6F05h
--------V-106F01-----------------------------
INT 10 - VIDEO - Video7 VGA,VEGA VGA,HP EX-BIOS - GET MONITOR INFO
	AX = 6F01h
Return: AL = monitor type code (HP,VEGA VGA only) (see #0096)
	AH = status register information (see #0097)
	CL = current value of Extended Control register (HP Ext BIOS, and only
		if AL=41h) (see #0098)
Notes:	bits 0-3 are the same as the EGA/VGA status register bits 0-3
	supported by original HP Vectra AT and by ES/QS/RS series Vectras

(Table 0096)
Values for monitor type code (HP Extended BIOS):
 00h	non-HP card with ROM and possibly its own INT 10h driver
 41h	MultiMode video display adapter
 42h-44h reserved
 45h	industry standard monochrome display adapter
 46h	industry standard color display adapter
 51h	reserved

Bitfields for status register information:
Bit(s)	Description	(Table 0097)
 0	display enable
	0 = display enabled
	1 = vertical or horizontal retrace in progress
 1	light pen flip flop set
 2	light pen switch activated
 3	vertical sync
 4	monitor resolution
	0 = high resolution (>200 lines)
	1 = low resolution (<=200 lines)="" 5="" display="" type="" (0="color," 1="monochrome)" 6,7="" diagnostic="" bits="" note:="" bits="" 0-3="" are="" the="" same="" as="" the="" ega/vga="" status="" register="" bits="" 0-3="" --------v-106f02-----------------------------="" int="" 10="" -="" hp="" vectra="" ex-bios="" -="" set="" monitor="" info="" ax="6F02h" bl="new" value="" for="" extended="" control="" register="" (see="" #0098)="" return:="" ax,bl="" destroyed="" notes:="" this="" function="" is="" only="" valid="" when="" an="" hp="" multimode="" video="" display="" adapter="" is="" installed="" the="" extended="" control="" register="" is="" at="" i/o="" address="" 3ddh="" seealso:="" ax="6F01h,AX=6F03h" bitfields="" for="" hp="" vectra="" extended="" control="" register:="" bit(s)="" description="" (table="" 0098)="" 0="" screen="" resolution="" (0="200" lines,="" 1="400" lines)="" 1="" underline="" enable="" (if="" set,="" 'blue'="" of="" fg="" color="underline)" 2="" font="" (0="Standard-8," 1="HP-Roman-8)" 3="" memory="" disabled="" for="" cpu="" access="" 4="" allow="" access="" to="" full="" 32k="" memory="" instead="" of="" wrapping="" at="" 16k="" 5="" select="" second="" 16k="" page="" instead="" of="" first="" 6,7="" unused="" --------v-106f03-----------------------------="" int="" 10="" -="" hp="" vectra="" ex-bios="" -="" modify="" monitor="" info="" ax="6F03h" bh="exclude" mask="" (set="" bits="" are="" not="" modified)="" bl="new" values="" for="" bits="" indicated="" by="" bh="" (see="" #0098)="" return:="" ax="" destroyed="" notes:="" this="" function="" is="" only="" valid="" when="" an="" hp="" multimode="" video="" display="" adapter="" is="" installed="" supported="" by="" original="" hp="" vectra="" at="" and="" by="" es/qs/rs="" series="" vectras="" seealso:="" ax="6F01h,AX=6F02h" --------v-106f04-----------------------------="" int="" 10="" -="" video="" -="" video7="" vga,vega="" vga,hp="" vectra="" -="" get="" mode="" and="" screen="" resolution="" ax="6F04h" return:="" al="current" video="" mode="" (see="" #0099)="" bx="horizontal" columns="" (text)="" or="" pixels="" (graphics)="" cx="vertical" columns="" (text)="" or="" pixels="" (graphics)="" seealso:="" ax="6F05h" --------v-106f05-----------------------------="" int="" 10="" -="" video="" -="" video7="" vga,vega="" extended="" ega/vga,hp="" vectra="" -="" set="" video="" mode="" ax="6F05h" bl="mode" (see="" #0099)="" return:="" ax,bl="" destroyed="" notes:="" also="" supported="" by="" the="" hp="" vectra="" extended="" bios="" on="" the="" original="" hp="" vectra="" at="" and="" by="" es/qs/rs="" series="" vectras="" on="" the="" hp="" vectra,="" this="" function="" rather="" than="" ah="00h" must="" be="" used="" to="" return="" to="" an="" ibm-standard="" mode="" after="" setting="" an="" hp-specified="" mode="" from="" 08h="" to="" 0fh.="" seealso:="" ah="00h,AX=0070h,AX=007Eh,AX=6F04h" (table="" 0099)="" values="" for="" video7/vega="" video="" mode:="" text/="" text="" pixel="" pixel="" colors="" disply="" scrn="" system="" grph="" resol="" box="" resolution="" pages="" addr="" 00h-13h="standard" ibm="" modes="" (see="" #0009="" at="" ah="00h)" 08h="T" 80x27="" .="" .="" mono="" .="" .="" hp="" multimode="" video="" 09h="T" 80x27="" .="" .="" .="" .="" .="" hp="" multimode="" video="" 0ah="T" 40x27="" .="" .="" mono="" .="" .="" hp="" multimode="" video="" 0bh="T" 40x27="" .="" .="" .="" .="" .="" hp="" multimode="" video="" 0ch="reserved" hp="" multimode="" video="" 0dh="G" .="" .="" 640x400="" .="" .="" .="" hp="" multimode="" video="" 0eh="G" .="" .="" 320x400="" .="" .="" .="" hp="" multimode="" video="" 0fh="G" .="" .="" 320x400="" .="" .="" .="" hp="" multimode="" video="" 40h="T" 80x43="" 8x8="" .="" .="" .="" .="" video7/vega="" vga="" 41h="T" 132x25="" 8x14="" .="" .="" .="" .="" video7/vega="" vga="" 42h="T" 132x43="" 8x8="" .="" .="" .="" .="" video7/vega="" vga="" 43h="T" 80x60="" 8x8="" .="" .="" .="" .="" video7/vega="" vga="" 44h="T" 100x60="" 8x8="" .="" .="" .="" .="" video7/vega="" vga="" 45h="T" 132x28="" 8x8="" .="" .="" .="" .="" video7/vega="" vga="" 60h="G" .="" .="" 752x410="" 16="" .="" .="" video7="" vga,="" vega="" vga="" 61h="G" .="" .="" 720x540="" 16="" .="" .="" video7="" vga,="" vega="" vga="G" .="" .="" 720x540="" 16="" .="" .="" northgate,="" headland="" 1024i="" 62h="G" .="" .="" 800x600="" 16="" .="" .="" video7="" vga,="" vega="" ext="" ega="G" .="" .="" 800x600="" 16="" .="" .="" headland="" 1024i="" 63h="G" .="" .="" 1024x768="" 2="" .="" .="" video7="" vga="" 64h="G" .="" .="" 1024x768="" 4="" .="" .="" video7="" vga="" 65h="G" .="" .="" 1024x768="" 16="" .="" .="" video7="" vga,="" vega="" ext="" ega="G" .="" .="" 1024x768="" 16="" .="" .="" headland="" 1024i="" 66h="G" .="" .="" 640x400="" 256="" .="" .="" video7="" vga,="" vega="" ext="" vga="G" .="" .="" 640x400="" 256="" .="" .="" northgate,="" headland="" 1024i="" 67h="G" .="" .="" 640x480="" 256="" .="" .="" video7="" vga,="" vega="" ext="" vga="G" .="" .="" 640x480="" 256="" .="" .="" headland="" 1024i="" 68h="G" .="" .="" 720x540="" 256="" .="" .="" video7="" vga,="" vega="" ext="" vga="G" .="" .="" 720x540="" 256="" .="" .="" headland="" 1024i="" 69h="G" .="" .="" 800x600="" 256="" .="" .="" video7="" vga,="" vega="" ext="" vga="G" .="" .="" 800x600="" 256="" .="" .="" headland="" 1024i="" 70h="G" .="" .="" 752x410="" 16gray="" .="" .="" video7="" vga,="" vega="" vga="" 71h="G" .="" .="" 720x540="" 16gray="" .="" .="" video7="" vga,="" vega="" vga="" 72h="G" .="" .="" 800x600="" 16gray="" .="" .="" video7="" vga="" 73h="G" .="" .="" 1024x768="" 2gray="" .="" .="" video7="" vga="" 74h="G" .="" .="" 1024x768="" 4gray="" .="" .="" video7="" vga="" 75h="G" .="" .="" 1024x768="" 16gray="" .="" .="" video7="" vga="" 76h="G" .="" .="" 640x400="" 256gray="" .="" .="" video7="" vga="" 77h="G" .="" .="" 640x480="" 256gray="" .="" .="" video7="" vga="" 78h="G" .="" .="" 720x540="" 256gray="" .="" .="" video7="" vga="" 79h="G" .="" .="" 800x600="" 256gray="" .="" .="" (future)="" seealso:="" ah="00h,AX=0070h,AX=007Eh,AX=6F04h" index:="" video="" modes;video="" 7|video="" modes;vega|video="" modes;headland="" --------v-106f06-----------------------------="" int="" 10="" -="" video="" -="" video7="" vga,vega="" vga="" -="" select="" autoswitch="" mode="" ax="6F06h" bl="Autoswitch" mode="" select="" 00h="" select="" ega/vga-only="" modes="" 01h="" select="" autoswitched="" vga/ega/cga/mga="" modes="" 02h="" select="" 'bootup'="" cga/mga="" modes="" bh="enable/disable" (00h="" enable,="" 01h="disable" selection)="" --------v-106f07-----------------------------="" int="" 10="" -="" video="" -="" video7="" vga,vega="" vga="" -="" get="" video="" memory="" configuration="" ax="6F07h" return:="" al="6Fh" ah="memory" configuration="" bits="" 0-6="number" of="" 256k="" blocks="" of="" video="" memory="" bit="" 7="DRAM/VRAM" (0:="" dram,="" 1:="" vram)="" bh="chip" revision="" (sr8f)="" (s/c="" chip="" in="" vega="" vga)="" bl="chip" revision="" (sr8e)="" (g/a="" chip="" in="" vega="" vga)="" cx="0000h" seealso:="" ah="12h/BL=10h" --------v-1070-------------------------------="" int="" 10="" -="" video="" -="" tandy="" 2000="" only="" -="" get="" address="" of="" video="" ram="" ah="70h" return:="" ax:bx="" -=""> WORD containing green plane's offset
	AX:CX -> WORD containing green plane's segment
	AX:DX -> WORD containing segment of red (offset 0) and blue (offset
			4000) planes
SeeAlso: AH=71h
--------V-1070------------------------------------
INT 10 - HUNTER 16 - DRAW ELLIPSE/CIRCLE
	AH = 70h
	DS:BX -> control block (see #0100)
Desc:	Draws a circle or ellipse. Only valid in graphics modes.
Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=71h"HUNTER"

Format of HUNTER 16 control block:
Offset	Size	Description	(Table 0100)
 00h	WORD	center X co-ordinate
 02h	BYTE	center Y co-ordinate
 03h	WORD	radius in pixels
 05h	BYTE	color (00h white, 01h black, FFh invert)
 06h	BYTE	aspect ratio x:x (1-127)
 07h	BYTE	aspect ratio y:y (1-127)
--------V-107000BX0000-----------------------
INT 10 - Everex Extended Video BIOS - RETURN EMULATION STATUS
	AX = 7000h
	BX = 0000h
Return: AL = 70h if Trident-based Everex card
	CL = monitor type (see #0101)
	CH = feature bits (see #0102)
	DX = video board info
	    bits 4-15: board ID model (see #0103)
	    bits 0-3:  board ID revision
	DI = BCD BIOS version number
SeeAlso: AX=5F01h,AH=FF"Oak"

(Table 0101)
Values for Everex monitor type:
 00h	mono
 01h	CGA
 02h	EGA
 03h	digital multifrequency
 04h	IBM PS/2
 05h	IBM 8514
 06h	SuperVGA
 07h	analog multifrequency
 08h	super multifrequency

Bitfields for Everex feature bits:
Bit(s)	Description	(Table 0102)
 7-6	memory size
	00 = 256K
	01 = 512K
	10 = 1024K
	11 = 2048K
 5	special oscillator present
 4	VGA protect enabled
 0	6845 emulation

(Table 0103)
Values for board model for Trident-based Everex cards:
 0236h	Ultragraphics II
 0620h	Vision VGA
 0673h	EVGA
 0678h	Viewpoint
--------V-107000BX0004-----------------------
INT 10 - Everex Extended Video BIOS - GET PAGING FUNCTION POINTER FOR CURR MODE
	AX = 7000h
	BX = 0004h
Return: ES:DI -> FAR paging function (call with DL = page to set)
Note:	the word preceding ES:DI is the length of the function in bytes, and
	  the last byte of the function is a FAR return instruction.
SeeAlso: AX=4F05h,AX=7000h/BX=0000h,AX=7000h/BX=0005h
--------V-107000BX0005-----------------------
INT 10 - Everex Extended Video BIOS - GET SUPPORTED MODE INFO
	AX = 7000h
	BX = 0005h
	CL = maximum number of modes to get info for
	CH = mode type to get info for (see #0104)
	DL = monitor type to get info for
	ES:DI -> buffer for mode info (see #0105)
Return: CL = total number of modes fitting criteria
	CH = size of each info record
SeeAlso: AX=7000h/BX=0000h,AX=7000h/BX=0004h

(Table 0104)
Values for Everex mode type:
 00h	all modes
 01h	monochrome text modes
 02h	color text modes
 03h	four-color CGA graphics modes
 04h	two-color CGA graphics modes
 05h	16-color graphics modes
 06h	256-color graphics modes

Format of Everex mode information record:
Offset	Size	Description	(Table 0105)
 00h	BYTE	mode number (bit 7 set if extended mode)
 01h	BYTE	mode type (see #0104)
 02h	BYTE	info bits (see #0106)
 03h	BYTE	font height
 04h	BYTE	text columns on screen
 05h	BYTE	text rows on screen
 06h	WORD	number of scan lines
 08h	BYTE	color information
		bits 7-4 reserved
		     3-0 bits per pixel

Bitfields for Everex info bits:
Bit(s)	Description	(Table 0106)
 7,6	reserved
 5	monochrome mode
 4	interlaced display
 3	requires special oscillator
 2,1	memory required (00 = 256K, 01 = 512K, 10 = 1024K, 11 = 2048K)
 0	reserved
--------V-1071-------------------------------
INT 10 - VIDEO - TANDY 2000 only - GET ADDRESS OF INCRAM
	AH = 71h
Return: AX:BX -> WORD containing segment address of INCRAM
	AX:CX -> WORD containing offset of INCRAM
SeeAlso: AH=70h"TANDY"
--------V-1071------------------------------------
INT 10 - HUNTER 16 - DRAW LINE/BOX
	AH = 71h
	DS:BX -> control block (see #0107)
Desc:	Draws a line or box. Only valid in graphics modes.
SeeAlso: AH=70h"HUNTER"

Format of HUNTER 16 control block:
Offset	Size	Description	(Table 0107)
 00h	WORD	left edge X co-ordinate
 02h	BYTE	lower edge Y co-ordinate
 03h	WORD	right edge X co-ordinate
 05h	BYTE	upper edge Y co-ordinate
 06h	BYTE	color (00h white, 01h black, FFh invert)
 07h	BYTE	type (00h line, 01h box)
 08h	BYTE	if non-zero (and type is BOX) fill with color
--------V-1072-------------------------------
INT 10 - VIDEO - TANDY 2000 only - SCROLL RIGHT PART OR ALL OF SCREEN
	AH = 72h
	AL = number of columns to shift scroll area, 00h to clear entire area
	BH = new attributes for blanked columns at left
	CH,CL = row, column of upper left corner of scroll area
	DH,DL = row, column of lower right corner of scroll area
SeeAlso: AH=06h,AH=07h,AH=73h"TANDY",INT 15/AH=12h/BH=05h
--------V-1072------------------------------------
INT 10 - HUNTER 16 - SELECT TEXT-MODE INVERSE VIDEO MECHANISM
	AH = 72h
	AL = mechanism to use
	    00h do not use inverse video
	    01h emulate MDA. Display attribute 07h is normal video and 70h is
		inverse video.
	    02h use inverse video if background is non-black.
	    03h use inverse video for high intensity text.
	    04h use inverse video for text with background intensity greater
		than foreground intensity.
	    05h use inverse video for text with background color other than
		black or high intensity foreground.
SeeAlso: AH=70h"HUNTER",AH=71h"HUNTER"
--------V-1073-------------------------------
INT 10 - VIDEO - TANDY 2000 only - SCROLL LEFT PART OR ALL OF SCREEN
	AH = 73h
	AL = number of columns to shift scroll area, 00h to clear entire area
	BH = new attributes for blanked columns at right
	CH,CL = row, column of upper left corner of scroll area
	DH,DL = row, column of lower right corner of scroll area
SeeAlso: AH=06h,AH=07h,AH=72h"TANDY",INT 15/AH=12h/BH=05h
--------V-1073------------------------------------
INT 10 - HUNTER 16 - SELECT TEXT FONT
	AH = 73h
	AL = new font
	      00h  7x7 in a 8x8 cell
	      01h  5x7 in a 6x8 cell
	      06h  3x5 in a 4x6 cell
Retuen: BH = cell width
	BL = cell height
SeeAlso: AH=60h"HUNTER",AH=77h"HUNTER"
--------V-1074------------------------------------
INT 10 - HUNTER 16 - SET LCD WINDOWS POSITION
	AH = 74h
	DH = row (0..24)
	DL = column (0..79)
Desc:	set the position in the virtual screen being displayed in the LCD
	  screen. If Split Screen (INT 10/AH=66h) is used, this call sets the
	  position for the window which has the cursor.
SeeAlso: AH=66h"HUNTER",AH=75h,AH=76h
--------V-1075------------------------------------
INT 10 - HUNTER 16 - SET ZOOM
	AH = 75h
	AL = new Zoom state (00h off, nonzero on)
SeeAlso: AH=74h,AH=76h
--------V-1076------------------------------------
INT 10 - HUNTER 16 - LOOKING KEYS
	AH = 76h
	AL = Action
	     00h home the window
	     01h move up one line
	     02h move down one line
	     03h move left one character
	     04h move right one character
	     05h flip window to other side of virtual screen
Desc:	moves the displayed screen around the virtual screen
SeeAlso: AH=74h,AH=75h
--------V-1077------------------------------------
INT 10 - HUNTER 16 - GET GRAPHICS FONT
	AH = 77h
Return: AL = font number (see #0108)
SeeAlso: AH=60h"HUNTER",AH=73h"HUNTER"

(Table 0108)
Values for HUNTER 16 graphics font number:
 00h	 7x7  in a  8x8	 cell
 01h	 5x7  in a  6x8	 cell
 02h	 7x9  in a  8x10 cell
 03h	14x9  in a 16x10 cell
 04h	 7x18 in a  8x20 cell
 05h	14x18 in a 16x20 cell
 06h	 3x5  in a  4x6	 cell
Note:	size is X * Y
--------V-1078------------------------------------
INT 10 - HUNTER 16 - TURN BACKLIGHT ON/OFF
	AH = 78h 
	AL = new state of backlight (00h on, 01h off)
SeeAlso: AH=64h,INT 15/AH=74h
--------V-107F00-----------------------------
INT 10 - SOLLEX SuperVGA - GET EXTENSIONS INFO
	AX = 7F00h
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		    ES:DI -> info structure (see #0109)
		01h failed
Program: the SOLLEX (Smos videO controLLer EXtensions) SuperVGA functions are
	  an extension to the VESA SuperVGA BIOS Extensions (see AX=4F00h) by
	  Seiko Epson Corporation intended to provided a standardized interface
	  to SuperVGA functionality not addressed by the VESA standard
SeeAlso: AX=4F00h

Format of SOLLEX SuperVGA info structure:
Offset	Size	Description	(Table 0109)
 00h	DWORD	pointer to VESA function dispatch table
 04h	DWORD	pointer to SOLLEX function dispatch table
 08h	DWORD	pointer to VESA SuperVGA info (see #0063 at AX=4F00h)
 0Ch	DWORD	pointer to mode info structure table, consisting of
		  alternating ResInfo (see #0110) and VESA mode information
		  (see #0065 at AX=4F01h) blocks, terminated with an FFFFh word
 10h	DWORD	pointer to font info structure table (see #0111)
 14h	WORD	high resolution crystal frequency in Hz (0000h = not present)
 16h	DWORD	pointer to ASCIZ ID string
 1Ah	DWORD	pointer to timeout reset table
		array of bytes, each a multiple of the minimum time increment
 1Eh	WORD	minimum time increment in timer ticks
 20h	BYTE	inverse options supported
		bit 0: inverse supported
		bits 1-7: reserved
 21h	BYTE	normal color value
 22h	BYTE	inverse color value
 23h	WORD	port to be accessed for normal/inverse settings
 25h	WORD	type of interface chip (currently undefined)
 27h	WORD	program operational mode
		bits 1-0: 00 no preference
			  01 terse (minimum detail in program messages)
			  10 verbose
			  11 use menus if supported, verbose mode otherwise
		bits 7-2: reserved
 29h	WORD	SOLLEX specification version
 2Bh	WORD	version of VESA/SOLLEX implementation
 2Dh	DWORD	offset to relocatable portion of SOLLEX extensions (for CONFIG)
 2Eh	DWORD	offset to unused section of the extensions ROM
 31h 16 BYTEs	reserved
Note:	all DWORD pointers initially require segment fixups; if the segment
	  is 0000h, it should be changed to the returned ES, otherwise it
	  may be assumed to be correct

Format of SOLLEX SuperVGA ResInfo:
Offset	Size	Description	(Table 0110)
 00h	WORD	16-bit mode number
 02h	WORD	adapter type (00h VGA, 01h EGA, 02h CGA, 03h MDA)
 04h	WORD	display info (see #0114)
 06h	DWORD	pointer to video parameter table
 0Ah	BYTE	replacement entry in master Video Parameter
 0Bh	BYTE	mode requested for mode set by BIOS
 0Ch	DWORD	pointer to LoadReg table
 10h	BYTE	index into table of clock values (see #0112)

Format of SOLLEX SuperVGA font info table [array] entry:
Offset	Size	Description	(Table 0111)
 00h	BYTE	required font height
 01h	BYTE	parameter to load text mode font
 02h	BYTE	parameter to load graphics mode font

(Table 0112)
Values for SOLLEX SuperVGA clock value index:
 00h	25 MHz
 01h	28 MHz
 02h	PCLK
 03h	31.5 MHz (VESA 640x480)
 04h	reserved
 05h	16 MHz (EGA)
 06h	PCLK
 07h	24 MHz (EGA)
 08h	25 MHz
 09h	28 MHz
 0Ah	36 MHz
 0Bh	45 MHz (for 1024x768)
 0Ch	80 MHz
 0Dh	40 MHz
 0Eh	65 MHz
 0Fh	 1 MHz (for powerdown)
--------V-107F00BX4000-----------------------
INT 10 - Diamond Stealth 24 - GET S3 INFORMATION BLOCK
	AX = 7F00h
	BX = 4000h
Return: AX = 007Fh if supported
	    DX:BX -> DAC set mode routine
SeeAlso: AX=7F00h/BX=4001h,AX=7F00h/BX=4002h
--------V-107F00BX4001-----------------------
INT 10 - Diamond Stealth 24 - GET LINEAR ADDRESS
	AX = 7F00h
	BX = 4001h
Return: AX = 007Fh if supported
	    CX = current linear address base (high word)
SeeAlso: AX=7F00h/BX=4000h,AX=7F00h/BX=4002h
--------V-107F00BX4002-----------------------
INT 10 - Diamond Stealth 24 - SET LINEAR ADDRESS
	AX = 7F00h
	BX = 4002h
	CX = new linear address base (high word)
Return: AX = 007Fh if supported
SeeAlso: AX=7F00h/BX=4000h,AX=7F00h/BX=4001h
--------V-107F01BL00-------------------------
INT 10 - SOLLEX SuperVGA - ADAPTER CONTROL - SET ADAPTER
	AX = 7F01h
	BL = 00h
	CX = adapter request (see #0113)
Return:	AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
Note:	initializes video hardware to a particular standard
SeeAlso: AX=7F00h,AX=7F01h/BL=01h,AX=7F01h/BL=02h

Bitfields for SOLLEX SuperVGA adapter request:
Bit(s)	Description	(Table 0113)
 1-0	adapter type (00 VGA, 01 EGA, 10 CGA, 11 MDA)
 2	reserved
 4-3	change displays (00 none, 01 analog 10 digital 11 panel)
 6-5	desired monitor sense (01 color, 10 mono, 11=8514)
 7	lock override
 8	alternate adapter mode
 15-9	reserved
--------V-107F01BL01-------------------------
INT 10 - SOLLEX SuperVGA - ADAPTER CONTROL - GET ADAPTER
	AX = 7F01h
	BL = 01h
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
	    BX = adapter type (see #0113)
	    DX = display type (see #0114)
SeeAlso: AX=7F00h,AX=7F01h/BL=00h,AX=7F01h/BL=02h

Bitfields for SOLLEX SuperVGA display type:
Bit(s)	Description	(Table 0114)
 15-9	reserved
 8	alternate display active
 7	Enhanced Color Display monitor active
 6	multi-frequency digital monitor active
 5	PS/2-type monitor active
 4	plasma/electroluminescent panel active
 3	LCD panel active
 2	multi-frequency analog monitor active
 1-0	monitor sense (00 none, 01 color, 10 mono, 11=8514)
--------V-107F01BL02-------------------------
INT 10 - SOLLEX SuperVGA - ADAPTER CONTROL - DETERMINE ADAPTER SUPPORT
	AX = 7F01h
	BL = 02h
	CX = adapter request (see #0113)
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h requested setting can successfully be made
		01h requested setting not available in this configuration
SeeAlso: AX=7F00h,AX=7F01h/BL=00h
--------V-107F02BL00-------------------------
INT 10 - SOLLEX SuperVGA - DISPLAY OUTPUT CONTROL - SET DISPLAY OUTPUT
	AX = 7F02h
	BL = 00h
	CX = display output setting (see #0115)
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
		 AH = status
		00h successful
		01h failed
SeeAlso: AX=7F00h,AX=7F02h/BL=00h

Bitfields for SOLLEX SuperVGA display output setting:
Bit(s)	Description	(Table 0115)
 0	CRTC control in 2,1 valid
 1	enable digital output
 2	enable analog output
 3	panel control in 5,4 valid
 4	enable LCD output
 5	enable plasma/EL output
 6	inverse control in 7 valid
 7	0=normal, 1=inverse
 15-8	reserved
--------V-107F02BL01-------------------------
INT 10 - SOLLEX SuperVGA - DISPLAY OUTPUT CONTROL - GET DISPLAY OUTPUT
	AX = 7F02h
	BL = 01h
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		    BX = display output setting (see #0115)
		    CX = displays attached (see #0116)
		01h failed
SeeAlso: AX=7F00h,AX=7F02h/BL=00h

Bitfields for SOLLEX SuperVGA displays attached:
Bit(s)	Description	(Table 0116)
 0	PS/2 display on analog output
 1	multi-frequency monitor on analog output
 2	LCD panel attached
 3	plasma/electroluminescent panel attached
 4	multi-frequency monitor on digital output
 5	Enhanced Color Display attached to digital outpt
 6	alternate display
 15-7	reserved
--------V-107F03BL00-------------------------
INT 10 - SOLLEX SuperVGA - VIDEO SUPPORT CONTROL - GET SUPPORT INFO
	AX = 7F03h
	BL = 00h
	CX = support type
		0000h VGA, 0001h EGA, 0002h CGA, 0003h MDA, 0004h extensions,
		0005h-0012h reserved for SOLLEX, 0013h Hercules,
		0014h-001Fh reserved for SOLLEX, 0020h-00FFh reserved for OEM
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		    CX = size of video support code
		    DX = segment of physical video support (0000h if no ROM)
		    ES = segment of active video support
		    ES:DI -> information block (DI = 0000h if none available)
		01h failed
SeeAlso: AX=7F03h/BL=01h
--------V-107F03BL01-------------------------
INT 10 - SOLLEX SuperVGA - VIDEO SUPPORT CONTROL - INITIALIZE VIDEO SUPPORT
	AX = 7F03h
	BL = 01h
	CX = support request
	ES = segment of support code
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
Note:	initializes the indicated video support by calling ES:0003h; this
	  function may be used to switch the active video support back to
	  ROM after AX=7F03h/BL=02h
SeeAlso: AX=7F03h/BL=00h
--------V-107F03BL02-------------------------
INT 10 - SOLLEX SuperVGA - VIDEO SUPPORT CONTROL - GO RAM RESIDENT
	AX = 7F03h
	BL = 02h
	CX = support request
	ES = destination segment
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
SeeAlso: AX=7F00h,AX=7F03h/BL=01h
--------V-107F04BL00-------------------------
INT 10 - SOLLEX SuperVGA - POWER CONTROL - SET POWER STATE
	AX = 7F04h
	BL = 00h
	CX = new power state
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
Note:	higher values progressively reduce the operations available on the
	  video adapter while yielding increasing power savings
SeeAlso: AX=7F00h,AX=7F04h/BL=01h
--------V-107F04BL01-------------------------
INT 10 - SOLLEX SuperVGA - POWER CONTROL - GET POWER STATE
	AX = 7F04h
	BL = 01h
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		    CX = current power state
		    DX = maximum state
		01h failed
SeeAlso: AX=7F00h,AX=7F04h/BL=00h
--------V-107F04BL02-------------------------
INT 10 - SOLLEX SuperVGA - POWER CONTROL - SET TIMEOUT RESET
	AX = 7F04h
	BL = 02h
	CX = timeout reset
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
SeeAlso: AX=7F00h,AX=7F04h/BL=03h
--------V-107F04BL03-------------------------
INT 10 - SOLLEX SuperVGA - POWER CONTROL - GET TIMEOUT RESET
	AX = 7F04h
	BL = 03h
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		    BX = time increment
		    CX = current timeout reset
		    DX = maximum timeout reset
		    ES:DI -> timeout reset table (array of bytes)
		01h failed
Note:	the timeout period is computed as (BYTE ES:[DI+CX]) * BX timer ticks
SeeAlso: AX=7F00h,AX=7F04h/BL=02h
--------V-107F05-----------------------------
INT 10 - SOLLEX SuperVGA - LOAD REGISTER
	AX = 7F05h
	ES:DI -> register value table (see #0117)
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
SeeAlso: AH=F1h,AH=F3h,AH=F5h

Format of SOLLEX SuperVGA register value table:
Offset	Size	Description	(Table 0117)
 00h	WORD	base I/O register (FFFFh = end of list)
 02h 2N BYTEs	pairs of values to be written to the base I/O register as an
		  index value and the following register as a data byte
 2N+2	WORD	FFFFh (end of data list)
	... (repeats until FFFFh base address)
--------V-107F06-----------------------------
INT 10 - SOLLEX SuperVGA - MULTIPLE FONT CONTROL
	AX = 7F06h
	BL = subfunction
	    00h set multiple font state
		CX = new state (00h off, 01h on)
	    01h get multiple font state
		Return: BL = current state (00h off, 01h on)
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
SeeAlso: AH=11h
--------V-107F07-----------------------------
INT 10 - SOLLEX SuperVGA - FILL VIDEO RAM
	AX = 7F07h
	BL = how much to fill
	   00h regen size
	   01h all video memory
	CX = pattern to write (normally 0720h for text modes and 0000h for gr)
Return: AL <> 7Fh if not supported
	AL = 7Fh if supported
	    AH = status
		00h successful
		01h failed
SeeAlso: AH=06h
--------A-1080-------------------------------
INT 10 - CU Writer v1.4 - GET OPTION
	AH = 80h
	AL = desired option
Return: ???
Program: CU Writer is a public-domain Thai-English word processor from
	  Chulalongkorn University, Bangkok
SeeAlso: AH=81h"CU Writer"
--------Q-1080--DX4456-----------------------
INT 10 U - VIDEO - DESQview 2.0x only - internal - SET ??? HANDLER
	AH = 80h
	DX = 4456h ('DV')
	ES:DI -> FAR subroutine to be called on ???
Return: DS = segment of DESQview data structure for video buffer
Note:	this function is probably meant for internal use only, due to the magic
	  value required in DX
	the subroutine seems to be called when the DESQview menu is accessed;
	  on entry, AL = 03h or 04h
--------A-1081-------------------------------
INT 10 - CU Writer v1.4 - SET OPTION
	AH = 81h
	???
Return: ???
SeeAlso: AH=80h"CU Writer"
--------Q-1081--DX4456-----------------------
INT 10 U - VIDEO - DESQview 2.0x only - internal - GET ???
	AH = 81h
	DX = 4456h ('DV')
Return: ES = segment of DESQview data structure for video buffer
	    BYTE ES:[0] = current window number in DV 2.0x
Note:	this function is probably meant for internal use only, due to the magic
	  value required in DX
SeeAlso: AH=82h"DESQview"
--------Q-1082--DX4456-----------------------
INT 10 U - VIDEO - DESQview 2.0x only - internal - GET CURRENT WINDOW INFO
	AH = 82h
	DX = 4456h ('DV')
Return: DS = segment in DESQview for data structure
	     in DV 2.00,
		  BYTE DS:[0] = window number
		  WORD DS:[1] = segment of other data structure
		  WORD DS:[3] = segment of window's object handle
	ES = segment of DESQview data structure for video buffer
	AL = current window number
	AH = ???
	BL = direct screen writes
	    00h program does not do direct writes
	    01h program does direct writes, so shadow buffer not usable
	BH = ???
	CL = current video mode
	CH = ???
Note:	this function is probably meant for internal use only, due to the magic
	  value required in DX
SeeAlso: AH=81h"DESQview"
--------J-108200-----------------------------
INT 10 - VIDEO - AX PC - GET/SET SCROLL MODE
	AX = 8200h
	BL = new scroll mode or FFh to get current mode
	    00h dynamic, 01h software
Return: AL = scroll mode (current mode if BL=FFh, previous mode otherwise)
SeeAlso: AH=06h,AH=07h
--------J-108300-----------------------------
INT 10 - VIDEO - AX PC - GET VIDEO RAM ADDRESS
	AX = 8300h
Return: AX = offset of video RAM
	ES:BX -> virtual text RAM buffer
SeeAlso: AX=5201h
--------N-108B-------------------------------
INT 10 - Alloy MW386 - FORCE WORKSTATION SCREEN UPDATE
	AH = 8Bh
SeeAlso: AH=92h,AH=93h
--------N-1090-------------------------------
INT 10 - Alloy MW386 - GET PHYSICAL WORKSTATION DISPLAY MODE
	AH = 90h
Return: AL = current video mode (see #0009 at AH=00h)
SeeAlso: AH=91h
--------N-1091-------------------------------
INT 10 - Alloy MW386 - GET PHYSICAL WORKSTATION ADAPTER TYPE
	AH = 91h
Return: AL = video adapter type (see #0118)
Note:	types less than 80h do not imply that the current user is on the host
SeeAlso: AH=90h

(Table 0118)
Values for Alloy MW386 video adapter type:
 00h	monochrome
 01h	Hercules monochrome graphics
 02h	CGA
 03h	EGA
 04h	VGA
 80h	monochrome text terminal
 81h	Hercules graphics terminal
 82h	color graphics terminal
--------N-1092-------------------------------
INT 10 - Alloy MW386 - INHIBIT WORKSTATION SCREEN UPDATES
	AH = 92h
Note:	the terminal will be updated even when screen updates are inhibited if
	  TTY output is used
SeeAlso: AH=8Bh
--------N-1093-------------------------------
INT 10 - Alloy MW386 - REDRAW SCREEN
	AH = 93h
SeeAlso: AH=8Bh,AH=FFh
--------A-10A0-------------------------------
INT 10 - CU Writer v1.4 - SET PIXEL WRITE MODE
	AH = A0h
	???
Return: ???
Program: CU Writer is a public-domain Thai-English word processor from
	  Chulalongkorn University, Bangkok
SeeAlso: AH=80h"CU Writer",AH=B0h
--------p-10A0-------------------------------
INT 10 - ATI Mach64 BIOS - Display Power Management Signalling API???
	AH = A0h
	AL = function (00h-13h)
	???
Return: AH = status
	    00h successful
	    01h failed
	???
SeeAlso: AX=4F10h/BL=00h
--------p-10A00C-----------------------------
INT 10 - ATI Mach64 BIOS - SET SLEEP MODE
	AX = A00Ch
	CL = new state
	    01h standby
	    02h suspend
	    03h off
Return: AH = status
	    00h successful
	    01h failed
SeeAlso: AX=4F00h,AX=4F10h/BL=01h
--------A-10B0-------------------------------
INT 10 - CU Writer v1.4 - PUT PIXEL
	AH = B0h
	???
Return: ???
SeeAlso: AH=A0h"CU Writer",AH=B1h,AH=B2h,AH=B3h,AH=B4h,AH=B5h,AH=D0h
--------A-10B1-------------------------------
INT 10 - CU Writer v1.4 - MOVE TO
	AH = B1h
	???
Return: ???
SeeAlso: AH=B0h,AH=B2h,AH=C0h"CU Writer"
--------A-10B2-------------------------------
INT 10 - CU Writer v1.4 - DRAW LINE TO
	AH = B2h
	???
Return: ???
SeeAlso: AH=B0h,AH=B1h,AH=B3h,AH=B4h,AH=B5h
--------A-10B3-------------------------------
INT 10 - CU Writer v1.4 - FLOOD FILL
	AH = B3h
	???
Return: ???
SeeAlso: AH=B2h,AH=B5h
--------A-10B4-------------------------------
INT 10 - CU Writer v1.4 - DRAW RECTANGLE
	AH = B4h
	???
Return: ???
SeeAlso: AH=B0h,AH=B2h,AH=B3h,AH=B5h
--------A-10B5-------------------------------
INT 10 - CU Writer v1.4 - DRAW FILLED RECTANGLE
	AH = B5h
	???
Return: ???
SeeAlso: AH=B0h,AH=B2h,AH=B3h,AH=B4h
--------V-10BD44-----------------------------
INT 10 U - Compaq QVision - ???
	AX = BD44h
	???
Return: ???
Note:	called by Compaq's MTX132.COM, which places the QVision in 132-column
	  mode
--------b-10BF00-----------------------------
INT 10 - VIDEO - Compaq Extensions - SELECT EXTERNAL MONITOR
	AX = BF00h
Desc:	specify that the external monitor become the active monitor
Note:	all registers preserved and the internal monitor is blanked
SeeAlso: AX=BF01h,AX=BF12h
--------b-10BF01-----------------------------
INT 10 - VIDEO - Compaq Extensions - SELECT INTERNAL MONITOR
	AX = BF01h
Desc:	specify that the internal monitor become the active monitor
Note:	all registers preserved and the external monitor is blanked
SeeAlso: AX=BF00h,AX=BF12h
--------b-10BF02-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET MASTER MODE OF CURRENT CONTROLLER
	AX = BF02h
	BH = master mode
	    04h CGA
	    05h EGA
	    07h MDA
SeeAlso: AX=BF03h
--------b-10BF03BX0000-----------------------
INT 10 - VIDEO - Compaq Extensions - GET ENVIRONMENT
	AX = BF03h
	BX = 0000h
Return: BH = active monitor
	    (00h = external, 01h = internal, 03h both, 04h neither)
	BL = master mode (see #0119)
	CH = ASIC type and version
	    00h (reserved, very early Compaq VGCs)
	    31h if QVision VGA
	CL = switchable VDU modes supported (see #0120)
	DH = internal monitor type (see #0121)
	DL = external monitor type (see #0121)
SeeAlso: AX=1A00h,AX=BF00h,AX=BF01h,AX=BF02h,AX=BF11h

(Table 0119)
Values for Compaq video master mode:
 00h	switchable VDU not present
 04h	CGA
 05h	EGA
 07h	MDA
 08h	switchable LCD controller present
 09h	plasma VGA
 0Ah	TFT (active-matrix) VGA

Bitfields for Compaq switchable VDU modes support:
Bit(s)	Description	(Table 0120)
 0	CGA supported
 1,2	reserved (1)
 3	MDA supported
 4	BitBLT engine available
 5	132-column support availble
 6	640x480x256 mode available
 7	8-bit DAC mode available

(Table 0121)
Values for Compaq monitor type:
 00h	none
 01h	dual-mode monitor
 02h	5153 RGB monitor (RGBI 16-color)
 03h	Compaq Color monitor
 04h	640x400 flat panel (Plasma CGA)
 05h	VGC monochrome
 06h	VGC color
 07h	8-level mono LCD VGA (internal)
	1024x768 mono VGA (external)
 08h	16-level mono plasma VGA (internal)
	1024x768 color VGA (external)
 09h	4-level mono LCD CGA
 0Ah	16-level mono LCD VGA
 0Bh	active-matrix color VGA
 0Ch	active-matrix mono VGA
 0Dh	STN color VGA
--------b-10BF04-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET MODE SWITCH DELAY
	AX = BF04h
	BH = new state of delay (00h enabled, 01h disabled)
Note:	the 04/08/93 sytem ROM appears to use BL instead of BH; a future
	  version of the list will provide more definite information
SeeAlso: AX=BF05h
--------b-10BF05-----------------------------
INT 10 - VIDEO - Compaq Extensions - ENABLE/DISABLE DISPLAY
	AX = BF05h
	BH = new state of video
	    00h off
	    01h on
Note:	the 04/08/93 sytem ROM appears to use BL instead of BH; a future
	  version of the list will provide more definite information
SeeAlso: AH=12h/BL=36h,AX=BF04h
--------b-10BF06-----------------------------
INT 10 - VIDEO - Compaq SLT/286 - READ GRAY SCALE TABLE
	AX = BF06h
	CL = address to be read from gray scale table
Return: AL = bit 3-0 - Value read from gray scale table
	CL = address to be read from gray scale table
SeeAlso: AH=12h/BL=33h,AX=BF07h
--------b-10BF07-----------------------------
INT 10 - VIDEO - Compaq SLT/286 - WRITE GRAY SCALE TABLE
	AX = BF07h
	CH = value to write to gray scale table
	CL = address to be written to gray scale table
SeeAlso: AX=BF06h,AX=BF08h
--------b-10BF08-----------------------------
INT 10 - VIDEO - Compaq SLT/286 - WRITE COLOR MIX REGISTERS
	AX = BF08h
	CH = bits 7-4 green weight
	     bits 3-0 blue weight
	CL = bits 7-4 unused
	     bits 3-0 red weight
SeeAlso: AH=12h/BH=33h,AX=BF07h
--------b-10BF09-----------------------------
INT 10 - VIDEO - Compaq Extensions - TURN ON REVERSE VIDEO
	AX = BF09h
Return: CF clear
Notes:	sets bit 6 of port 03CEh index 81h; in some cases also sets index 84h
	  to 6Fh and index 83h to 04h
	supported by at least the QVision board and the LTE Lite ROM BIOS
SeeAlso: AX=BF0Ah,AX=BF0Bh
--------b-10BF0A-----------------------------
INT 10 - VIDEO - Compaq Extensions - TURN OFF REVERSE VIDEO
	AX = BF0Ah
Return: CF clear
Notes:	clears bit 6 of port 03CEh index 81h; in some cases also sets index 84h
	  to 80h and index 83h to FBh
	supported by at least the QVision board and the LTE Lite ROM BIOS
SeeAlso: AX=BF09h,AX=BF0Bh
--------b-10BF0B-----------------------------
INT 10 - VIDEO - Compaq Extensions - CHECK WHETHER VIDEO REVERSED
	AX = BF0Bh
Return: CF clear
	AX = state (0000h normal video, 0001h reverse video)
Note:	supported by at least the QVision board and the LTE Lite ROM BIOS
SeeAlso: AX=BF09h,AX=BF0Ah
--------b-10BF0C-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET DAC 6-BIT MODE
	AX = BF0Ch
Return: CF clear
Desc:	specify that video DAC registers use only six bits of color info
Note:	supported by at least the QVision board and the SystemPro XL ROM BIOS
SeeAlso: AX=BF0Dh,AX=BF0Eh
--------b-10BF0D-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET DAC 8-BIT MODE
	AX = BF0Dh
Return: CF clear
Desc:	specify that video DAC registers use all eight bits of color info
Note:	supported by at least the QVision board and the SystemPro XL ROM BIOS
SeeAlso: AX=BF0Ch,AX=BF0Eh
--------b-10BF0E-----------------------------
INT 10 - VIDEO - Compaq Extensions - CHECK DAC 6-BIT/8-BIT mode
	AX = BF0Eh
Return: CF clear
	AL = DAC mode
	    00h in 6-bit mode
	    01h in 8-bit mode
Note:	supported by at least the QVision board and the SystemPro XL ROM BIOS
SeeAlso: AX=BF0Ch,AX=BF0Dh
--------b-10BF0F-----------------------------
INT 10 - VIDEO - Compaq Extensions - SET HIGH ADRESS MAP REGISTER
	AX = BF0Fh
	BX = high address map location in megabytes, or
	    0000h to disable high address map, or
	    FFFFh to let ROM configure high address map
Return: CF clear
	AX = previous value of high address map register
Notes:	supported by at least the QVision board and the SystemPro XL and LTE
	  Lite ROM BIOSes
SeeAlso: AX=BF10h
--------b-10BF10-----------------------------
INT 10 - VIDEO - Compaq Extensions - GET HIGH ADDRESS MAP REGISTER
	AX = BF10h
Return: CF clear
	AX = current value of high address map register
Notes:	supported by at least the QVision board and the SystemPro XL and LTE
	  Lite ROM BIOSes
	the Compaq QVision documentation (October 1993) says the value is
	  returned in BX, but this appears to be one of many typos
SeeAlso: AX=BF0Fh
--------b-10BF11-----------------------------
INT 10 - VIDEO - Compaq Extensions - GET EXTENDED ENVIRONMENT
	AX = BF11h
Return: AL = BFh if supported
	    CF clear
	    ES:BX -> ASCII signature "COMPAQ"
	    ES:DI -> advanced functionality table (see #0122)
Notes:	supported by at least the QVision board and the LTE Lite and ProSignia
	  ROM BIOSes
	the QVision documentation (October 1993) states that the signature
	  pointer is in ES:DI and the table pointer in ES:SI -- can someone
	  check on this?
SeeAlso: AX=1A00h,AX=BF03h

Bitfields for Compaq advanced video functionality:
Bit(s)	Description	(Table 0122)
 31	future graphics extensions (reserved, set to 0)
 30-16	reserved
 15-12	available video memory in 256K blocks, less one (0000 = 256K, etc.)
 11-8	reserved
 7	QVision modes supported
 6	Advanced VGA modes supported
 5	Accelerated VGA modes supported
 4	standard VGA modes supported
 3-2	reserved
 1	132-column modes supported
 0	reserved
--------b-10BF12-----------------------------
INT 10 - VIDEO - Compaq Extensions - NEW ACTIVE MONITOR
	AX = BF12h
	BH reserved
	BL = function mask (see #0123)
Return: CF clear
Notes:	this function is a NOP if the VGA subsystem is inactive or the current
	  Display Combination Code is 10h or higher
	supported by at least the QVision board and the LTE Lite and ProSignia
	  ROM BIOSes
SeeAlso: AX=BF01h,AX=BF02h

Bitfields for function mask:
Bit(s)	Description	(Table 0123)
 7	command mode
	if set, bits 1 and 0 make the monitor active when set
	if clear, bits 1 and 0 toggle the monitor's state when set
 6-2	reserved
 1	internal monitor
 0	external monitor
--------b-10BF13-----------------------------
INT 10 - VIDEO - Compaq QVision - GAMMA CORRECTION
	AX = BF13h
	BL = subfunction
	    00h load gamma correction table for true-color mode
		DS = BIOS data segment
	    01h set palette RAM bypass
	BH = 00h
Return:	nothing
Note:	these functions must be called after a video mode set, and are in
	  effect only for the current video mode
--------V-10BFA0BXADAD-----------------------
INT 10 - VIDEO - Compaq ADAPT.COM - INSTALLATION CHECK
	AX = BFA0h
	BX = ADADh
Return: AX = BDBDh if newer ADAPT.COM installed
	    BX = BCD version (BH = major, BL = minor)
	    CL = ???
	    CH = ???
		 DL = ???
	AX = ADADh if older version of ADAPT.COM installed
Program: ADAPT is Compaq's Advanced Display Attribute Programming Tool, an
	  optionally-resident utility for setting display colors and cursor
	  size; when resident, it also includes a screen blanker
SeeAlso: AX=BFA1h,AX=BFA2h,AX=DFA5h
Index:	screen saver;ADAPT
--------V-10BFA1-----------------------------
INT 10 - VIDEO - Compaq ADAPT.COM - GET ???
	AX = BFA1h
Return: AX = BDBEh if supported
	    CH = current value of ???
	    DL = current value of ???
SeeAlso: AX=BFA0h,AX=BFA2h
--------V-10BFA2-----------------------------
INT 10 - VIDEO - Compaq ADAPT.COM - SET ???
	AX = BFA2h
	CH = new value for ???
	DL = new value for ???
Return: AX = BDBEh if supported
SeeAlso: AX=BFA0h,AX=BFA1h
--------A-10C0-------------------------------
INT 10 - CU Writer v1.4 - GO TO TEXT ROW AND COLUMN
	AH = C0h
	???
Return: ???
SeeAlso: AH=B1h,AH=C1h,AH=C2h,AH=C3h,AH=C4h
--------A-10C1-------------------------------
INT 10 - CU Writer v1.4 - OUTPUT TEXT
	AH = C1h
	???
Return: ???
SeeAlso: AH=C0h,AH=C2h,AH=C3h,AH=C4h
--------A-10C2-------------------------------
INT 10 - CU Writer v1.4 - REVERSE TEXT
	AH = C2h
	???
Return: ???
SeeAlso: AH=C0h,AH=C1h,AH=C3h,AH=C4h
--------A-10C3-------------------------------
INT 10 - CU Writer v1.4 - TEXT BAR
	AH = C3h
	???
Return: ???
SeeAlso: AH=C0h,AH=C1h,AH=C4h
--------A-10C4-------------------------------
INT 10 - CU Writer v1.4 - TEXT MENU
	AH = C4h
	???
Return: ???
SeeAlso: AH=C0h,AH=C1h,AH=C3h,AH=D0h
----------10CB00-----------------------------
INT 10 - UNCHAIN - SAVE CURRENT VGA REGISTERS
	AX = CB00h
Note:	combined with AX=CB06h, this function permits the use of video mode
	  13h together with the VGA's unchained mode
SeeAlso: AX=CB06h,AX=CBFFh
----------10CB01-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 1 OFFSET
	AX = CB01h
	BX = offset of page 1
Desc:	inform UNCHAIN of the location of video page 1 in video memory; the
	  default is 0000h
SeeAlso: AX=CB02h,AX=CB03h,AX=CB04h,AX=CBFFh
----------10CB02-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 2 OFFSET
	AX = CB02h
	BX = offset of page 2
Desc:	inform UNCHAIN of the location of video page 2 in video memory; the
	  default is 3E80h (16000, for 320x200)
SeeAlso: AX=CB00h,AX=CB01h,AX=CB03h,AX=CB04h
----------10CB03-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 3 OFFSET
	AX = CB03h
	BX = offset of page 3
Desc:	inform UNCHAIN of the location of video page 3 in video memory; the
	  default is 7D00h (32000, for 320x200)
SeeAlso: AX=CB01h,AX=CB02h,AX=CB04h
----------10CB04-----------------------------
INT 10 - UNCHAIN - UPDATE PAGE 4 OFFSET
	AX = CB04h
	BX = offset of page 4
Desc:	inform UNCHAIN of the location of video page 4 in video memory; the
	  default is BB80h (48000, for 320x200)
SeeAlso: AX=CB01h,AX=CB02h,AX=CB03h,AX=CB05h
----------10CB05-----------------------------
INT 10 - UNCHAIN - SAVE PALETTE
	AX = CB05h
SeeAlso: AX=CB00h,AX=CB06h
----------10CB06-----------------------------
INT 10 - UNCHAIN - RESTORE VGA REGISTERS
	AX = CB06h
SeeAlso: AX=CB00h,AX=CB05h,AX=CBFFh
----------10CBFF-----------------------------
INT 10 - UNCHAIN - INSTALLATION CHECK
	AX = CBFFh
Return: AX = CCBBh if installed
Program: UNCHAIN is a TSR by Colin Buckley which permits use of Borland
	  development tools with Mode X video in the absence of a second
	  monitor
SeeAlso: AX=CB00h,AX=CB01h,AX=CB06h
--------V-10CC00-----------------------------
INT 10 - VIDEO - UltraVision - GET STATUS (INSTALLATION CHECK)
	AX = CC00h
	SI = magic value 0000h (if checking version)
Return: CX = product signature
	    ABCDh UltraVision
	    5546h ('UF') UltraFont 
	AL = Ultravision extensions
	    00h enabled
	    FFh disabled
	AH = card designator
	BX:00F0h -> palette values (for compatibility with NEWFONT)
	DX = support for high resolution modes
	    00h not active
		 01h active
	SI = UltraVision version number (v1.2+), high byte=major,low byte=minor
	    unchanged for versions <1.2 note:="" ultrafont="" is="" a="" simplified="" version="" of="" ultravision="" for="" toshiba;="" only="" the="" signature="" in="" cx="" and="" the="" status="" in="" al="" will="" be="" returned="" seealso:="" ax="CC01h,AX=CC02h" --------v-10cc01-----------------------------="" int="" 10="" -="" video="" -="" ultravision="" -="" disable="" extensions="" ax="CC01h" notes:="" subsequent="" bios="" calls="" will="" be="" passed="" through="" to="" previous="" handler="" should="" be="" followed="" immediately="" by="" mode="" set="" to="" restore="" normal="" ega/vga="" state="" seealso:="" ax="CC02h" --------v-10cc02-----------------------------="" int="" 10="" -="" video="" -="" ultravision="" -="" enable="" extensions="" ax="CC02h" note:="" should="" be="" followed="" immediately="" by="" mode="" set="" to="" restore="" previous="" ultravision="" state="" seealso:="" ax="CC01h" --------v-10cd00-----------------------------="" int="" 10="" -="" video="" -="" ultravision="" -="" load="" ultravision="" palette="" (color="" ega,vga)="" ax="CD00h" cl="palette" table="" number="" (01h-07h="" for="" v1.x,="" 01h-0fh="" for="" v2+)="" ds:dx="" -=""> 16-byte palette register list (colors for registers 00h-0Fh)
Notes:	if palette locking is in effect for the current mode, the new colors
	  will be displayed immediately; otherwise, the system reverts to the
	  default palette
	palette table 0 is reserved for the default palette and cannot be set
	UltraVision always sets the border color to black
SeeAlso: AX=CD01h,AX=CD02h
--------V-10CD01-----------------------------
INT 10 - VIDEO - UltraVision - SET PALETTE LOCKING STATUS (color EGA,VGA)
	AX = CD01h
	CL = palette locking value
	    00h none
	    01h text modes only (02h,03h)
	    FFh all modes (all standard color text and graphics modes)
Notes:	intended for video modes with 16 or fewer colors
SeeAlso: AX=1000h,AX=1002h,AX=CD00h,AX=CD03h
--------V-10CD02-----------------------------
INT 10 - VIDEO - UltraVision - GET ULTRAVISION PALETTE (EGA,VGA)
	AX = CD02h
Return: CL = palette table number
	DS:DX -> 17-byte palette register list (see #0124)
	DS:SI -> current font names table (see #0125,#0126)
Note:	only the font names are valid on monochrome EGA systems
SeeAlso: AX=1009h,AX=CD00h

Format of UltraVision palette register list:
Offset	Size	Description	(Table 0124)
 00h 16 BYTEs	colors for palette registers 00h through 0Fh
 10h	BYTE	border color

Format of UltraVision v2+ current font names table:
Offset	Size	standard EGA	HiRes EGA	VGA	(Table 0125)
 00h  8 BYTEs	N/A		F19 font	F20 font
 08h  8 BYTEs	F14 font	F14 font	F14 font
 10h  8 BYTEs	N/A		F11 font	F10 font
 18h  8 BYTEs	F8 font		F8 font		F8 font

Format of UltraVision v1.x current font names table:
Offset	Size	HiRes EGA	(Table 0126)
 00h  8 BYTEs	F19/F14 font
 08h  8 BYTEs	F11/F8 font
--------V-10CD03-----------------------------
INT 10 - VIDEO - UltraVision - GET PALETTE LOCKING STATUS (color EGA,VGA)
	AX = CD03h
Return: CL = palette locking value
	    00h none
		 01h text modes only
	    FFh all modes
SeeAlso: AX=CD01h
--------V-10CD04-----------------------------
INT 10 - VIDEO - UltraVision - GET UltraVision TEXT MODE (EGA,VGA)
	AX = CD04h
Return: AL = mode number (see #0127)
SeeAlso: AH=0Fh,AX=CC00h,AH=CDh

(Table 0127)
Values for UltraVision video mode number:
 11h	80x25
 12h	80x43, 80x50
 13h	80x34, 80x36
 14h	80x60, 80x63
 19h	94x25
 1Ah	94x43, 94x50
 1Bh	94x36
 1Ch	94x63
 21h	108x25
 22h	108x43, 108x50
 23h	107x34, 108x36
 24h	108x60, 108x63
 31h	120x25
 32h	120x43, 120x50
 33h	132x25
 34h	132x44, 132x50
 39h	120x36
 3Ah	120x63
 3Bh	132x36
 3Ch	132x60
Index:	video modes;UltraVision
--------V-10CD05-----------------------------
INT 10 - VIDEO - UltraVision - SET CURSOR TYPE (EGA,VGA)
	AX = CD05h
	CL = type
	    00h line cursor
	    FFh box cursor
Note:	sets default cursor type for text-based programs
SeeAlso: AH=01h,AX=CD06h
--------V-10CD06-----------------------------
INT 10 - VIDEO - UltraVision - GET CURSOR TYPE (EGA,VGA)
	AX = CD06h
Return: CL = type
	    00h line cursor
	    FFh box cursor
SeeAlso: AH=03h,AX=CD05h
--------V-10CD07-----------------------------
INT 10 - VIDEO - UltraVision v1.2+ - SET UNDERLINE STATUS (EGA,VGA)
	AX = CD07h
	CL = hardware underline status (see #0128)
	BL = foreground color for normal text (FFh = current)
	BH = foreground color for bright text (FFh = current)
Return: CL = hardware underline status
	BL = current foreground color for normal text
	BH = current foreground color for bright text
Notes:	when underline or strikeout is enabled in color text modes, the
	  specified colors will be assigned temporarily to colors 01h and 09h,
	  allowing affected text to match non-underlined text.	The color
	  remapping uses values from the current onscreen palette regardless
	  of the palette locking status (see AX=CD01h)
	specify the standard colors (BL=01h,BH=09h) to enable underline or
	  strikeout without color remapping
SeeAlso: AX=CD08h

(Table 0128)
Values for hardware underline status:
 00h	off (color systems only)
 01h	underline below characters
 02h	strike through characters
--------V-10CD08-----------------------------
INT 10 - VIDEO - UltraVision v1.2+ - GET UNDERLINE STATUS (EGA,VGA)
	AX = CD08h
Return: CL = hardware underline status (see #0128)
	BL = foreground color for normal text
	BH = foreground color for bright text
Note:	only CL is valid on monochrome EGA systems
SeeAlso: AX=CD07h
--------V-10CD10-----------------------------
INT 10 - VIDEO - UltraVision - LOAD USER FONT (EGA,VGA)
	AX = CD10h
	BH = bytes per character (08h,0Ah,0Bh,0Eh,13h,14h)
	CX = ABCDh load 9xN alternate font (v2+)
	   else number of characters to load
		DX = character offset into font table
		DS:SI -> 8-byte ASCII font name
	ES:BP -> font definitions
Return: AX = FFFFh if invalid font parameters
Notes:	loads the designated characters into UltraVision's resident font area
	should be followed by a video mode set to reload character generator
SeeAlso: AX=1100h
--------V-10CD-------------------------------
INT 10 - VIDEO - UltraVision - SET ULTRAVISION TEXT MODE (EGA,VGA)
	AH = CDh
	AL = text mode number (see #0127)
Return: AX = CDCDh if invalid mode
SeeAlso: AX=CD04h
--------A-10D0-------------------------------
INT 10 - CU Writer v1.4 - LOAD PICTURE
	AH = D0h
	???
Return: ???
SeeAlso: AH=B0h"CU Writer",AH=C4h
--------V-10D0-------------------------------
INT 10 U VIDEO - HP 100LX/200LX - SET ZOOM MODE
	AH = D0h
	AL = zoom mode
	    02h 80x25 mono
	    03h 80x25 color
	    80h 64x18 mono
	    81h 64x18 color
	    82h 40x25 mono
	    83h 40x25 color
	    84h 40x16 mono
	    85h 40x16 color
Note:	zoom mode can only be changed within zoom modes of the same color
	  scheme; if needed, set to mono/color with AH=00h,AL=02h/03h; with
	  mono video modes AL=07h or AL=21h only 80x25 and 40x16 will work
	the current zoom mode is stored in the BIOS data area at 0040h:009Fh
SeeAlso: AH=D1h,AH=D4h
--------V-10D1-------------------------------
INT 10 U VIDEO - HP 100LX/200LX - INTERNAL - ???
	AH = D1h
	AL = 01h
Return: ???
Note:	called by AH=D0h
SeeAlso: AH=D0h,AH=D4h
--------V-10D4-------------------------------
INT 10 U VIDEO - HP 100LX/200LX - INTERNAL - ???
	AH = D4h
	AL = 29h
Return: ???
Note:	called by AH=D0h
SeeAlso: AH=D0h,AH=D1h
--------V-10D5-------------------------------
INT 10 - Netroom SCRNCLK - ???
	AH = D5h
	???
Return: ???
Program: SCRNCLK is a "cloaked" screen accelerator included with Netroom
--------V-10DFA5-----------------------------
INT 10 U - VIDEO - Compaq ADAPT.COM - GET ??? DATA AREA
	AX = DFA5h
Return: AX = BDBFh if supported
	    ES:DI -> ??? data area
	    BX = ES
SeeAlso: AX=BFA0h
--------V-10EF-------------------------------
INT 10 - VIDEO - MSHERC.COM - GET VIDEO ADAPTER TYPE AND MODE
	AH = EFh
Return: DL = video adapter type
	    00h original Hercules
	    01h Hercules Plus
	    02h Hercules InColor???
	DH = memory mode byte
	    01h "half" mode
	    03h "full" mode
Program: MSHERC.COM is a support program for the Microsoft Quick languages
	  which makes their graphics libraries compatible with a Hercules card
	  by adding video modes 08h and 88h, and supporting text in the new
	  graphics modes.
Notes:	while in mode 08h or 88h, INT 10 supports the Hercules card much like
	  a CGA.
	MSHERC performs an installation check by setting DL=FFh and testing
	  whether it has been changed on return
	reportedly returns DH=00h on some not-entirely-Hercules-compatible
	  cards
Index:	installation check;MSHERC
--------V-10F0-------------------------------
INT 10 - EGA Register Interface Library - READ ONE REGISTER
	AH = F0h
	BL = register number
	BH = 00h
	DX = group index (see #0129)
Return: BL = data
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F1h,AH=F2h,INT 2F/AX=BC00h

(Table 0129)
Values for group index:
 Pointer/data chips
 00h	CRT Controller (25 reg) 3B4h mono modes, 3D4h color modes
 08h	Sequencer (5 registers) 3C4h
 10h	Graphics Controller (9 registers) 3CEh
 18h	Attribute Controller (20 registers) 3C0h
 Single registers
 20h	Miscellaneous Output register 3C2h
 28h	Feature Control register (3BAh mono modes, 3DAh color modes)
 30h	Graphics 1 Position register 3CCh
 38h	Graphics 2 Position register 3CAh
--------V-10F1-------------------------------
INT 10 - EGA Register Interface Library - WRITE ONE REGISTER
	AH = F1h
	DX = group index (see #0129)
	    if single register:
		BL = value to write
	    otherwise
		BL = register number
		BH = value to write
Return: BL = data
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AX=7F05h,AH=F0h,AH=F3h
--------V-10F2-------------------------------
INT 10 - EGA Register Interface Library - READ REGISTER RANGE
	AH = F2h
	CH = starting register number
	CL = number of registers (>1)
	DX = group index (00h,08h,10h,18h) (see #0129)
	ES:BX -> buffer, CL bytes
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F0h,AH=F3h
--------V-10F3-------------------------------
INT 10 - EGA Register Interface Library - WRITE REGISTER RANGE
	AH = F3h
	CH = starting register
	CL = number of registers (>1)
	DX = group index (00h,08h,10h,18h) (see #0129)
	ES:BX -> buffer, CL bytes
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AX=7F05h,AH=F1h,AH=F2h
--------V-10F4-------------------------------
INT 10 - EGA Register Interface Library - READ REGISTER SET
	AH = F4h
	CX = number of registers to read (>1)
	ES:BX -> table of register records (see #0130)
Return: register values in table filled in
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F0h,AH=F2h,AH=F5h

Format of EGA RIL entries in table of register records:
Offset	Size	Description	(Table 0130)
 00h	WORD	group index
		Pointer/data chips
		   00h CRTC (3B4h mono modes, 3D4h color modes)
		   08h Sequencer 3C4h
		   10h Graphics Controller 3CEh
		   18h Attribute Controller 3C0h
		Single registers
		   20h Miscellaneous Output register 3C2h
		   28h Feature Control register (3BAh mono modes, 3DAh color)
		   30h Graphics 1 Position register 3CCh
		   38h Graphics 2 Position register 3CAh
 02h	BYTE	register number (0 for single registers)
 03h	BYTE	register value
--------V-10F5-------------------------------
INT 10 - EGA Register Interface Library - WRITE REGISTER SET
	AH = F5h
	CX = number of registers to write (>1)
	ES:BX -> table of records (see #0130)
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AX=7F05h,AH=F1h,AH=F3h,AH=F4h
--------V-10F6-------------------------------
INT 10 - EGA Register Interface Library - REVERT TO DEFAULT REGISTERS
	AH = F6h
Note:	provided by the Microsoft Mouse driver, OS/2 compatibility box, and
	  others
SeeAlso: AH=F7h
--------V-10F7-------------------------------
INT 10 - EGA Register Interface Library - DEFINE DEFAULT REGISTER TABLE
	AH = F7h
	DX = port number
	   Pointer/data chips
	      00h CRTC (3B4h mono modes, 3D4h color modes)
	      08h Sequencer 3C4h
	      10h Graphics Controller 3CEh
	      18h Attribute Controller 3C0h
	   Single registers
	      20h Miscellaneous Output register 3C2h
	      28h Feature Control register (3BAh mono modes, 3DAh color modes)
	      30h Graphics 1 Position register 3CCh
			38h Graphics 2 Position register 3CAh
	ES:BX -> table of one-byte entries, one byte to be written to each
		 register
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F6h
--------V-10FA--BX0000-----------------------
INT 10 - EGA Register Interface Library - INTERROGATE DRIVER
	AH = FAh
	BX = 0000h
Return: BX = 0000h if RIL driver not present
	ES:BX -> EGA Register Interface version number, if present:
	    byte 0 = major release number
	    byte 1 = minor release number
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F6h,INT 2F/AX=BC00h
--------K-10FA-------------------------------
INT 10 - FASTBUFF.COM - INSTALLATION CHECK
	AH = FAh
Return: AX = 00FAh if installed
	    ES = segment of resident code
Program: FASTBUFF.COM is a keyboard speedup/screen blanking utility by David
	  Steiner
Index:	screen saver;FASTBUFF
--------V-10FE-------------------------------
INT 10 - TopView - GET SHADOW BUFFER
	AH = FEh
	ES:DI -> assumed video buffer
		B800h:0000h color text/CGA graphics, B000h:0000h mono text,
		  or A000h:0000h EGA/VGA graphics (RSIS environments only)
Return: ES:DI -> actual video buffer for calling process
Desc:	Determine the address of the virtual screen to which the program
	  should write instead of the actual video memory; this permits
	  programs to be multitasked without interfering with each other's
	  output, and allows memory managers to move the video memory to
	  permit larger programs to be loaded.
Notes:	if no multitasker or RSIS-compliant environment is installed, ES:DI is
	  returned unchanged; RSIS is the Relocated Screen Interface
	  Specification
	for display pages other than 0, use AH=05h and AH=0Fh to determine
	  whether a particular page exists
	TopView requires a call to AH=FFh to notify it that the screen has
	  changed; DESQview will check for changes itself until the first call
	  to AH=FFh
SeeAlso: AH=05h,AX=5201h,AH=FFh,INT 15/AX=1024h,INT 21/AH=2Bh"DESQview"
SeeAlso: INT 21/AH=ECh"DoubleDOS"
--------V-10FF-------------------------------
INT 10 - TopView - UPDATE SCREEN FROM SHADOW BUFFER
	AH = FFh
	CX = number of consecutive changed characters
	ES:DI -> first changed character in shadow buffer
Notes:	avoid CX=0000h
	DESQview will discontinue the automatic screen updating initiated by
	  AH=FEh after this call
	not supported (ignored) by DESQview/X 1.0x
SeeAlso: AH=93h,AH=FEh
--------E-10FF-------------------------------
INT 10 - DJ GO32.EXE 80386+ DOS extender - VIDEO EXTENSIONS
	AH = FFh
	AL = video mode (see #0131)
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
SeeAlso: AH=00h,INT 21/AH=FFh"GO32"

(Table 0131)
Values for GO32 video mode number:
 00h	80x25 text
 01h	default text
 02h	CXxDX text
 03h	biggest text
 04h	320x200 graphics
 05h	default graphics
 06h	CXxDX graphics
 07h	biggest non-interlaced graphics
 08h	biggest graphics
Index:	video modes;GO32
--------V-10FF-------------------------------
INT 10 - VIDEO - Oak VGA BIOS v1.02+ - SET EMULATION
	AH = FFh
	AL = emulation
	    43h ('C') CGA emulation
	    45h ('E') EGA emulation
	    4Dh ('M') Hercules emulation
	    56h ('V') VGA emulation
	ES:DI -> signature string "Calamity"
Return: VGA switched to suggested mode
SeeAlso: AH=00h,AX=007Fh,AX=5F01h
--------R-10FF00-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - CHECK IF CC CONNECTED TO CCHELP
	AX = FF00h
Return: BL = state
		 00h not connected
	    01h connected
SeeAlso: AX=FF01h,AX=FF02h
--------R-10FF01-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - DISCONNECT AND RESET LINE
	AX = FF01h
SeeAlso: AX=FF00h,AX=FF02h
--------R-10FF02-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - GET LAST PHONE NUMBER DIALED
	AX = FF02h
Return: ES:DI -> ASCIZ phone number
SeeAlso: AX=FF00h,AX=FF01h
--------C-11---------------------------------
INT 11 - CPU-generated (80486+) - ALIGNMENT CHECK
Desc:	automatically generated by the CPU when the AC flag is set, the current
	  privilege level is 3, and a misaligned memory access (WORD not on an
	  even address or DWORD not on a multiple of 4) is made
Note:	not all V86 monitors allow the AC flag to be set, such as Turbo
	  Debugger 386
--------B-11---------------------------------
INT 11 - BIOS - GET EQUIPMENT LIST
Return: (E)AX = BIOS equipment list word (see #0132)
Note:	since older BIOSes do not know of the existence of EAX, the high word
	  of EAX should be cleared before this call if any of the high bits
	  will be tested

Bitfields for BIOS equipment list:
Bit(s)	Description	(Table 0132)
 0	floppy disk(s) installed (see 6-7)
 1	80x87 coprocessor installed
 3-2	number of 16K banks of RAM on motherboard (PC only)
	number of 64K banks of RAM on motherboard (XT only)
 2	pointing device installed (PS)
 3	unused (PS)
 5-4	initial video mode
	00 EGA, VGA, or PGA
	01 40x25 color
	10 80x25 color
	11 80x25 monochrome
 7-6	number of floppies installed less 1 (if 0 set)
 8	DMA support installed (PCjr, Tandy 1400LT)
	DMA support *not* installed (Tandy 1000's)
 11-9	number of serial ports installed
 12	game port installed
 13	serial printer attached (PCjr)
	internal modem installed (PC/Convertible)
 15-14	number of parallel ports installed
---Compaq, Dell, and many other 386/486 machines--
 23	page tables set so that Weitek coprocessor addressable in real mode
 24	Weitek math coprocessor present
---Compaq Systempro---
 25	internal DMA parallel port available
 26	IRQ for internal DMA parallel port (if bit 25 set)
	0 = IRQ5
	1 = IRQ7
 28-27	parallel port DMA channel
	00 DMA channel 0
	01 DMA channel 0 ???
	10 reserved
	11 DMA channel 3
SeeAlso: INT 12
--------d-11----SI6A6A-----------------------
INT 11 - Columbia Data Products Standard Device Level Protocol (SDLP) 1.6
	SI = 6A6Ah
	AH = command (see #0133)
	AL = SCSI Addressing (see #0134)
Return: CF clear if successful
	    DI = 6A6Ah if AH=01h on entry (maybe for all functions???)
	    AH = ??? for command 01h
	CF set on error
	    AL = error code
SeeAlso: INT 21/AX=4402h"ASPI"

(Table 0133)
Values for SDLP command:
 00h	SDLP initialization
 01h	SDLP System Identify
 02h	simple read sectors
 03h	simple write sectors
 04h	simple verify sectors/seek to sector
 05h	get device size/type
 06h	ready unit
 07h	format unit
 08h	diagnostics
 09h	rewind
 0Ah	erase
 0Bh	write filemarks
 0Ch	space
 0Dh	prevent/allow media removal
 0Eh	load/unload media
 0Fh	reserved - returns good status
 10h	set block size
 11h	write setmark
 12h	set error level
 13h	get address of Request Sense Buffer
 14h	get SDLP error via Request Sense
 F0h	Vendor Unique Function (WD7000-FASST2 only)
 FDh	reset current SCSI HAC
 FEh	get/set current SCSI HAC
 FFh	execute SCSI command

Bitfields for SDLP SCSI addressing:
Bit(s)	Description	(Table 0134)
 7-6	Host Adapter
 5-3	SCSI Target ID
 2-0	SCSI Target LUN (logical unit number)
--------V-110225BX6900-----------------------
INT 11 - Blank-It Screen Blanker - INSTALLATION CHECK
	AX = 0225h
	BX = 6900h
Return: BL = 23h
	ES:DI -> ASCIZ "BLNKIT"
Program: Blank-It is a resident screen blanker by Rhode Island Soft Systems,
	  Inc.
SeeAlso: AX=0225h/BX=6902h,AX=0225h/BX=6908h,AX=0225h/BX=6909h,INT 14/AX=AA01h
Index:	screen saver;Blank-It
--------V-110225BX6901-----------------------
INT 11 - Blank-It Screen Blanker - SET TIMEOUT FOR SCREEN BLANKING
	AX = 0225h
	BX = 6901h
	CX = timeout in timer ticks (18.2/second) or 0000h to disable timeout
	     largest value is 59 minutes (FBACh or 64428)
Return: CF clear if successful
	    DI = 6A6Ah (possibly also 6A6Ah for all following functions)
	    AH = ???
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6904h
Index:	screen saver;Blank-It
--------V-110225BX6902-----------------------
INT 11 - Blank-It Screen Blanker - ENABLE THE SOFTWARE
	AX = 0225h
	BX = 6902h
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6903h
Index:	screen saver;Blank-It
--------V-110225BX6903-----------------------
INT 11 - Blank-It Screen Blanker - DISABLE THE SOFTWARE
	AX = 0225h
	BX = 6903h
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6902h
Index:	screen saver;Blank-It
--------V-110225BX6904-----------------------
INT 11 - Blank-It Screen Blanker - GET BLANKING TIMEOUT
	AX = 0225h
	BX = 6904h
Return: CF clear if successful
	    BX = timeout (see BX=6901h)
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6901h
Index:	screen saver;Blank-It
--------V-110225BX6905-----------------------
INT 11 - Blank-It Screen Blanker - ENABLE WINDOWS COMPATIBILITY MODE
	AX = 0225h
	BX = 6905h
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6906h
Index:	screen saver;Blank-It
--------V-110225BX6906-----------------------
INT 11 - Blank-It Screen Blanker - DISABLE WINDOWS COMPATIBILITY MODE
	AX = 0225h
	BX = 6906h
Return: CF clear if successful
	CF set on error
	    AL = error code
Program: Blank-It is a resident screen blanker by Rhode Island Soft Systems,
	  Inc.
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6905h
Index:	screen saver;Blank-It
--------V-110225BX6907-----------------------
INT 11 - Blank-It Screen Blanker - UNBLANK THE SCREEN
	AX = 0225h
	BX = 6907h
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6908h
Index:	screen saver;Blank-It
--------V-110225BX6908-----------------------
INT 11 - Blank-It Screen Blanker - BLANK THE SCREEN
	AX = 0225h
	BX = 6908h
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AX=0225h/BX=6900h,AX=0225h/BX=6907h
Index:	screen saver;Blank-It
--------V-110225BX6909-----------------------
INT 11 - Blank-It Screen Blanker - SET HOTKEY FOR MANUAL BLANKING
	AX = 0225h
	BX = 6909h
	CL = key scan code (see #0135)
Return: CF clear if successful
	CF set on error
	    AL = error code
Program: Blank-It is a resident screen blanker by Rhode Island Soft Systems,
	  Inc.
SeeAlso: AX=0225h/BX=6900h
Index:	screen saver;Blank-It|hotkeys;Blank-It

(Table 0135)
Values for Blank-It hotkey scan code:
 00h	No hot key
 1Dh	Left CTRL
 2Ah	Left Shift
 36h	Right Shift
 57h	F11
 58h	F12
----------1105D7-----------------------------
INT 11 CU - Borland C++ IDE - INSTALLED CALLOUT
	AX = 05D7h
	BX = product ID (0088h)
Note:	called by the BC++ IDE when an application calls
	  INT 12/AX=05D7h/BX=05D7h
SeeAlso: INT 12/AX=05D7h/BX=05D7h
Index:	installation check;Borland C++ IDE
--------F-1177-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - OPERATIONAL CONTROL
	AH = 77h
	AL = subfunction
	    01h request SFENGINE start
		Return: AX = 0001h
		 02h check if SFENGINE started
		Return: AX = 0000h or 0001h
	    03h request SFENGINE stop
		Return: AX = 0001h
	    04h check if SFENGINE stopped
		Return: AX = 0000h or 0001h
	    05h installation check
		Return: AX = 0001h
	    06h uninstall???
		BX:DX -> return address for successful uninstall???
		Return: (at caller's address)
			AX = 0000h
	    else
		Return: AX = FFFFh
Return: ES:DX -> ASCIZ signature string "SFAX ENGINE V1.0"
		followed by internal data area???
SeeAlso: AH=78h,AH=79h,AH=7Ah,AH=7Ch
Index:	installation check;RainbowFAX|installation check;SFENGINE
Index:	uninstall;RainbowFAX|uninstall;SFENGINE
--------F-1178-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
	AH = 78h
	AL = subfunction
		 7801h set ???
		BX = new state for ???
		    0000h ???
		    else ???
		Return: AX = 0001h
	    7802h set ???
		BX = ???
		CX = ???
		Return: AX = 0001h
	    7803h set ???
		BX = new state for ???
		    0000h ???
		    else ???
		Return: AX = 0001h
	    78XXh invalid subfunction
		Return: AX = FFFFh
SeeAlso: AH=77h,AH=79h,AH=7Ah,AH=7Ch
--------F-1179-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
	AH = 79h
	AL = subfunction
	    01h set ??? flag
		Return: AX = previous state (0000h already set, 0001h clear)
		 02h clear ??? flag (see subfunc 01h)
		Return: AX = 0001h
	    03h set ??? flag (different from subfn 02h or 04h)
		Return: AX = 0001h
	    04h clear ??? flag (different from subfn 02h or 03h)
		Return: AX = 0001h
	    else
		Return: AX = FFFFh
SeeAlso: AH=77h,AH=78h,AH=7Ah,AH=7Ch
--------F-117A-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
	AH = 7Ah
	AL = subfunction
	    01h set ??? flag
		Return: AX = previous state (0000h already set, 0001h clear)
	    02h clear ??? flag
		Return: AX = 0001h
	    03h set ??? flag (different from subfn 02h)
		Return: AX = 0001h
	    else
		Return: AX = FFFFh
SeeAlso: AH=77h,AH=78h,AH=79h,AH=7Ch
--------F-117C-------------------------------
INT 11 - RainbowFAX v1.3 - SFENGINE API - ???
	AH = 7Ch
	AL = subfunction
	    01h set ??? flag (see also subfn 02h)
		Return: AX = 0001h
	    02h clear ??? flag (see also subfn 01h)
		Return: AX = 0001h
	    else
		Return: AX = FFFFh
SeeAlso: AH=77h,AH=78h,AH=79h,AH=7Ah
--------S-11BC--DX1954-----------------------
INT 11 - BNU FOSSIL - INSTALLATION CHECK
	AH = BCh
	DX = 1954h
Return: AX = 1954h
	ES:DX -> entry point of driver (instead of INT 14)
SeeAlso: INT 14/AH=04h"FOSSIL"
--------d-11FF--SI6A6A-----------------------
INT 11 - WD7000 SDLP interface - EXECUTE GENERIC SCSI COMMAND
	AH = FFh
	SI = 6A6Ah
	AL = SCSI Addressing (see #0136)
	CX = bytes of data to be transmitted (max FFF0h)
	DH = 00h
	DL = length of SCSI Command Descriptor Block
	DS:DI -> SCSI Command Descriptor Block
	ES:BX -> data buffer
Return: CF set on error
	    AL = error code
	CF clear if successful
Note:	because of busmaster operations with WD7000FASST avoid accessing
	  video memory directly; check 386 memory manager for VDS support.
	  The WD7000XTAT works with programmed IO and does not have this
	  limitation.
SeeAlso: INT 21/AX=4402h"ASPI",INT 2F/AX=7F01h

Bitfields for SDLP SCSI addressing:
Bit(s)	Description	(Table 0136)
 2-0	SCSI Target LUN (logical unit number)
 5-3	SCSI Target ID
 7	write flag, set for write operations, clear otherwise
--------T-11FFFECXFFFE-----------------------
INT 11 - BACK&FORTH (before v1.62) API
	AX = FFFEh
	CX = FFFEh
	BX = function
		 00h installation check
		Return: AX = installation state
			    0001h BNFHIGH and BNFLOW both loaded
			    0003h only BNFHIGH loaded
			    else neither loaded
	    01h ???
		Return: DX:AX -> ???
	    02h ???
	    03h ???
	    04h ???
	    05h ??? switches current PSP segment and stack if BNFLOW has not
		    yet announced itself installed
	    06h ???
		Return: AX = ???
SeeAlso: INT 12/AX=FFFEh
Index:	installation check;BACK&FORTH
--------B-12---------------------------------
INT 12 - BIOS - GET MEMORY SIZE
Return: AX = kilobytes of contiguous memory starting at absolute address 00000h
Note:	this call returns the contents of the word at 0040h:0013h; in PC and
	  XT, this value is set from the switches on the motherboard
SeeAlso: INT 11,INT 2F/AX=4A06h
--------K-12----CX1806-----------------------
INT 12 - KEYBUI v2.0+ - INSTALLATION CHECK
	CX = 1806h
Return: AX = kilobytes of contiguous memory starting at absolute address 00000h
	CX = 1960h if installed
Program: KEYBUI is a resident keyboard driver by Johan Zwiekhorst which allows
	  accented characters and box drawing on standard QWERTY keyboards; it
	  also provides break-to-DOS and screen blanking capabilities
SeeAlso: INT 14/AX=AA01h
Index:	screen saver;KEYBUI
--------d-12----CX1807-----------------------
INT 12 - PARKER v2.0+ - INSTALLATION CHECK
	CX = 1807h
Return: AX = kilobytes of contiguous memory starting at absolute address 00000h
	CX = 1961h if installed
Program: PARKER is an optionally-resident hard disk parking program by Johan
	  Zwiekhorst
----------1205D7BX05D7-----------------------
INT 12 U - Borland C++ IDE - INSTALLATION CHECK
	AX = 05D7h (1495d)
	BX = 05D7h
Note:	the BC++ IDE will call INT 11/AX=05D7h/BX=0088h if it is loaded
SeeAlso: INT 11/AX=05D7h/BX=0088h
----------124350BX4920-----------------------
INT 12 C - CPI-standard virus - "FRIEND" CHECK
	AX = 4350h
	BX = 4920h
	CX = AB46h
	DX = 554Eh
Return: if friendly (not to be infected)
	    CX:DX -> ASCIZ identity code (changes yearly)
SeeAlso: AX=EC00h"VIRUS",INT 21/AX=0B56h
--------T-12FFFECXFFFE-----------------------
INT 12 - Back&Forth v1.62+ - API
	AX = FFFEh
	CX = FFFEh
	BX = function
	    00h installation check
		Return: AX = 0001h installed
			     else  not loaded
	    01h (reserved)
	    02h build program ID list (shareware Back&Forth)
		ES:DI -> buffer of at least 100 bytes, to be filled with words
		Return: AX = number of programs defined
			ES:DI buffer filled with AX words
	    02h get memory statistics (Back&Forth Professional)
		Return: AX = available swap memory, KBytes
			BX = maximum task size, KBytes
			DX = fixed overhead per task, excluding video/macro
			      storage
	    03h switch to specified task (task need not be open yet)
		DX = two-letter program ID
		Return: AX = status
			    0000h if task undefined
			    0001h task switch will occur when safe
	    04h (reserved)
	    05h (reserved)
	    06h get version (documented only for Back&Forth Professional)
		Return: AX = version * 100 (v1.71 = 00ABh)
	    07h spawn program (Back&Forth Professional only???)
		ES:DI -> BF_SPAWN record (see #0138)
		Return: AX = status
			    0000h if no task handles free
			    0001h spawn will occur when safe
	    08h get open tasks (documented only for Back&Forth Professional)
		ES:DI -> task info buffer (see #0137,#0139)
		Return: AX = number of open tasks (max 20)
		Note:	the supplied buffer must be large enough to hold 21
			  task entries
	    09h (reserved)
		 ---Back&Forth Professional---
	    0Ah get active clipboard filename
		Return: DX:AX -> ASCIZ clipboard filename
	    0Bh get active task number
		AX = active task number (00h-13h)
		BX = number of tasks allocated
		DX = maximum number of tasks
	    0Ch (reserved)
	    0Dh (reserved)
	    0Eh (reserved)
	    0Fh stuff string into keyboard buffer
		ES:DI -> ASCIZ string to be stuffed
		Return: nothing
	    10h check if in graphics mode
		Return: AX = state
			    0000h color text mode
			    0004h mono text mode
			    FFFFh graphics mode
	    11h get Back&Forth Professional user number
		Return: AX = user number (0000h-00FFh)
	    12h switch task by task number
		DX = task number
		Return: AX = status
				 0000h attempted to switch to active task
			    0001h task switch will occur when safe
			    FFFFh invalid task number
	    13h delete (kill) task
		DX = task number
		Return: AX = status
			    0000h attempted to delete the active task
			    0001h successfully deleted
			    FFFFh invalid task number
		Note:	the active task number will change if the deleted task
			  was lower in the task list than the active task
	    14h get next available task handle
		Return:	AX = next available task handle
			    FFFFh if task table is full
Program: Back & Forth is a task switcher by Progressive Solutions, Inc.
SeeAlso: INT 11/AX=FFFEh
Index:	installation check;BACK&FORTH

Format of Back&Forth task info buffer:
Offset	Size	Description	(Table 0137)
 00h 21 BYTEs	ASCIZ task name
 15h	BYTE	hotkey shift state (as for INT 16/AH=02h)
 16h	WORD	hotkey scan code
 18h	WORD	program ID
Index:	hotkeys;Back&Forth
SeeAlso: #0138,#0139

Format of Back&Forth Professional BF_SPAWN record:
Offset	Size	Description	(Table 0138)
 00h 21 BYTEs	task description
 15h	BYTE	flag: disable hotkeys
 16h	WORD	environment size in bytes
 18h	BYTE	hotkey shift flags
 19h	WORD	hotkey scancode
 1Bh	WORD	maximum number of EMS pages
 1Dh	WORD	required memory in KBytes
 1Fh  3 BYTEs	DESQview-style two-letter program ID
 22h 13 BYTEs	base name of program to be run (no path or extension)
 2Fh 66 BYTEs	directory from which to start program
 71h 66 BYTEs	initial current directory for program
SeeAlso: #0137,#0139

Format of Back&Forth Professional BF_TASK record:
Offset	Size	Description	(Table 0139)
 00h	DWORD	Unix-style task start time (seconds since 1/1/1970)
 04h 21 BYTEs	task description
 19h	DWORD	elapsed time in task (seconds)
 1Dh	WORD	task ID
 1Fh	BYTE	task hotkey keyboard flags
 20h	WORD	task hotkey scan code
 22h	DWORD	time task was suspended/exited
 26h	WORD	task handle
SeeAlso: #0137,#0138
--------B-1300-------------------------------
INT 13 - DISK - RESET DISK SYSTEM
	AH = 00h
	DL = drive (if bit 7 is set both hard disks and floppy disks reset)
Return: AH = status (see #0140)
	CF clear if successful (returned AH=00h)
	CF set on error
Note:	forces controller to recalibrate drive heads (seek to track 0)
	for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
	  both the master drive and the slave drive respond to the Reset
	  function that is issued to either drive
SeeAlso: AH=0Dh,AH=11h,INT 21/AH=0Dh,INT 4D/AH=00h"TI Professional"
--------B-1301-------------------------------
INT 13 - DISK - GET STATUS OF LAST OPERATION
	AH = 01h
	DL = drive (bit 7 set for hard disk)
Return: CF clear if successful (returned status 00h)
	CF set on error
	AH = status of previous operation (see #0140)
Note:	some BIOSes return the status in AL; the PS/2 Model 30/286 returns the
	  status in both AH and AL
SeeAlso: AH=00h,INT 4D/AH=01h

(Table 0140)
Values for disk operation status:
 00h	successful completion
 01h	invalid function in AH or invalid parameter
 02h	address mark not found
 03h	disk write-protected
 04h	sector not found/read error
 05h	reset failed (hard disk)
 05h	data did not verify correctly (TI Professional PC)
 06h	disk changed (floppy)
 07h	drive parameter activity failed (hard disk)
 08h	DMA overrun
 09h	data boundary error (attempted DMA across 64K boundary or >80h sectors)
 0Ah	bad sector detected (hard disk)
 0Bh	bad track detected (hard disk)
 0Ch	unsupported track or invalid media
 0Dh	invalid number of sectors on format (PS/2 hard disk)
 0Eh	control data address mark detected (hard disk)
 0Fh	DMA arbitration level out of range (hard disk)
 10h	uncorrectable CRC or ECC error on read
 11h	data ECC corrected (hard disk)
 20h	controller failure
 31h	no media in drive (IBM/MS INT 13 extensions)
 32h	incorrect drive type stored in CMOS (Compaq)
 40h	seek failed
 80h	timeout (not ready)
 AAh	drive not ready (hard disk)
 B0h	volume not locked in drive (INT 13 extensions)
 B1h	volume locked in drive (INT 13 extensions)
 B2h	volume not removable (INT 13 extensions)
 B3h	volume in use (INT 13 extensions)
 B4h	lock count exceeded (INT 13 extensions)
 B5h	valid eject request failed (INT 13 extensions)
 BBh	undefined error (hard disk)
 CCh	write fault (hard disk)
 E0h	status register error (hard disk)
 FFh	sense operation failed (hard disk)
--------B-1302-------------------------------
INT 13 - DISK - READ SECTOR(S) INTO MEMORY
	AH = 02h
	AL = number of sectors to read (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
	     high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> data buffer
Return: CF set on error
	    if AH = 11h (corrected ECC error), AL = burst length
	CF clear if successful
	AH = status (see #0140)
	AL = number of sectors transferred
Notes:	errors on a floppy may be due to the motor failing to spin up quickly
	  enough; the read should be retried at least three times, resetting
	  the disk with AH=00h between attempts
	the IBM AT BIOS and many other BIOSes use only the low four bits of
	  DH (head number) since the WD-1003 controller which is the standard
	  AT controller (and the controller that IDE emulates) only supports
	  16 heads
	AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
SeeAlso: AH=03h,AH=0Ah,AH=06h"V10DISK.SYS",AH=21h"PS/1",INT 4D/AH=02h
--------B-1303-------------------------------
INT 13 - DISK - WRITE DISK SECTOR(S)
	AH = 03h
	AL = number of sectors to write (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
	     high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> data buffer
Return: CF set on error
	CF clear if successful
	AH = status (see #0140)
	AL = number of sectors transferred
Notes:	errors on a floppy may be due to the motor failing to spin up quickly
	  enough; the write should be retried at least three times, resetting
	  the disk with AH=00h between attempts
	the IBM AT BIOS and many other BIOSes use only the low four bits of
	  DH (head number) since the WD-1003 controller which is the standard
	  AT controller (and the controller that IDE emulates) only supports
	  16 heads
	AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
SeeAlso: AH=02h,AH=0Bh,AH=07h"V10DISK.SYS",AH=22h"PS/1",INT 4D/AH=03h
--------B-1304-------------------------------
INT 13 - DISK - VERIFY DISK SECTOR(S)
	AH = 04h
	AL = number of sectors to verify (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
	     high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> data buffer (PC,XT,AT with BIOS prior to 11/15/85)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140)
	AL = number of sectors verified
Notes:	errors on a floppy may be due to the motor failing to spin up quickly
	  enough; the write should be retried at least three times, resetting
	  the disk with AH=00h between attempts
	this function does not compare the disk with memory, it merely
	  checks whether the sector's stored CRC matches the data's actual CRC
	the IBM AT BIOS and many other BIOSes use only the low four bits of
	  DH (head number) since the WD-1003 controller which is the standard
	  AT controller (and the controller that IDE emulates) only supports
	  16 heads
	AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
SeeAlso: AH=02h,INT 4D/AH=04h,INT 4D/AH=06h
--------B-1305-------------------------------
INT 13 - FLOPPY - FORMAT TRACK
	AH = 05h
	AL = number of sectors to format
	CH = track number
	DH = head number
	DL = drive number
	ES:BX -> address field buffer (see #0141)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140)
Notes:	on AT or higher, call AH=17h first
	the number of sectors per track is read from the diskette parameter
	  table pointed at by INT 1E
SeeAlso: AH=05h"FIXED",AH=17h,AH=18h,INT 1E

Format of floppy format address field buffer entry (one per sector in track):
Offset	Size	Description	(Table 0141)
 00h	BYTE	track number
 01h	BYTE	head number (0-based)
 02h	BYTE	sector number
 03h	BYTE	sector size (00h=128 bytes, 01h=256 bytes, 02h=512, 03h=1024)
--------B-1305-------------------------------
INT 13 - FIXED DISK - FORMAT TRACK
	AH = 05h
	AL = interleave value (XT-type controllers only)
	ES:BX -> 512-byte format buffer
		the first 2*(sectors/track) bytes contain F,N for each sector
		   F = sector type
			00h for good sector
			20h to unassign from alternate location
			40h to assign to alternate location
			80h for bad sector
		   N = sector number
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = high bits of cylinder number (bits 7,6)
	DH = head
	DL = drive
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140)
Notes:	AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
	for XT-type controllers on an AT or higher, AH=0Fh should be called
	  first
	the IBM AT BIOS and many other BIOSes use only the low four bits of
	  DH (head number) since the WD-1003 controller which is the standard
	  AT controller (and the controller that IDE emulates) only supports
	  16 heads
	not all controller support sector types 20h and 40h
SeeAlso: AH=05h"FLOPPY",AH=06h"FIXED",AH=07h"FIXED",AH=0Fh,AH=18h,AH=1Ah
--------d-1305-------------------------------
INT 13 - Future Domain SCSI BIOS - SEND SCSI MODE SELECT COMMAND
	AH = 05h
	DL = hard drive ID
	ES:BX -> mode select data (see #0142)
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140)
Notes:	this function can be called before AH=07h"SCSI" or AH=06h"SCSI" to
	  format a SCSI disk with the desired parameters
	the mode select data below is from the SCSI-1 specification
	the TMC-950 does not support any Future Domain BIOS calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=06h"SCSI",AH=07h"SCSI",INT 4F/AX=8100h

Format of Future Domain SCSI mode select data:
Offset	Size	Description	(Table 0142)
 00h	BYTE	number of bytes of remaining data (12 + vendor unique length)
 01h	BYTE	reserved (0)
 02h	BYTE	medium type (0 for hard disk)
 03h	BYTE	reserved (0)
 04h	BYTE	block descriptor length (8)
 05h	BYTE	density code (0 for hard disk)
 06h  3 BYTEs	(big-endian) number of blocks (000000h for entire disk)
 09h	BYTE	reserved (0)
 0Ah  3 BYTEs	(big-endian) block length (512 standard, or 256)
 0Dh	???	vendor-specific parameter bytes (optional)
--------B-13057FSI324D-----------------------
INT 13 - 2M - FORMAT TRACK
	AX = 057Fh
	SI = 324Dh ("2M")
	CH = track number
	DH = head number
	DL = drive number
	ES:BX -> boot sector of future 2M diskette
Return:	CF set on error
	CF clear if successful
	AH = status (see #0140)
Program: 2M is a TSR developed by Ciriaco Garcia de Celis to support
	  non standard diskettes with 820-902/1476-1558K (5.25 DD/HD)
	  and 984-1066/1804-1886K/3608-3772K (3.5 DD/HD/ED)
Notes:	it is not necessary to call AH=17h/AH=18h first (will be ignored)
	the diskette format must always begin on cylinder 0 head 0
	the boot sector can be obtained from an already-formatted 2M diskette
	  (by calling AH=02h with head number 00h in 2M v1.x and with head
	  number 80h for 2M v2+)
	the installation check for 2M must search for a "CiriSOFT:2M:1.3" or
	  "CiriSOFT:2MX:3.0" or similar (recomended ":2M:" or ":2MX:"
	  substrings) in CiriSOFT TSR interface
	since 2M v2.0, the BOOT sector is emulated using the first physical
	  sector of FAT2; the second-sixth physical sectors of FAT2 in HD or ED
	  diskettes store the SuperBOOT code. To skip the FAT2 emulation (using
	  FAT1) of 2M, in order to read the SuperBOOT code, head number must be
	  80h-81h instead 0-1 (bit 7 active) in standard read/write functions.
	  This lets diskcopy programs format 2M target diskettes copying
	  SuperBOOT code. If the target diskette is already 2MF formatted
	  (containing boot code) this trick it is not necessary.
	when using STV technology (offset 65 of boot sector equal to 1) it is
	  necessary to write the full track before formatting (except track 0
	  side 0) to complete the format and skip future CRC errors on read; in
	  track 0 side 1 the head used must be 81h instead 1. Diskcopy programs
	  may do a format-write-verify sequential phases to improve performance
SeeAlso: AH=05h"FLOPPY",INT 2F"CiriSOFT TSR interface"
--------B-1306-------------------------------
INT 13 - FIXED DISK - FORMAT TRACK AND SET BAD SECTOR FLAGS (XT,PORT)
	AH = 06h
	AL = interleave value
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = sector number
	DH = head
	DL = drive
Return: AH = status code (see #0140)
Note:	AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
SeeAlso: AH=05h"FIXED",AH=07h"FIXED"
--------d-1306-------------------------------
INT 13 - Future Domain SCSI BIOS - FORMAT DRIVE WITH BAD SECTOR MAPPING
	AH = 06h
	AL = interleave
	     (0 = default, 1 = consecutive sectors, 2 - 255 = vendor unique)
	DL = hard drive ID
	DH = defect list info (see #0143)
	ES:BX -> defect table A, B or C (see #0144,#0145,#0146)
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140)
Notes:	block addresses must be in ascending order (for table B, cylinder is
	  most significant, byte from index least significant; for table C,
	  cylinder is most significant, sector number least significant)
	table B defect bytes from index of FFFFFFFFh indicates that the entire
	  track shall be reassigned
	table C defect sector number of FFFFFFFFh indicates that the entire
	  track shall be reassigned
	the TMC-950 does not support any Future Domain BIOS calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=05h"SCSI",AH=06h"FIXED",AH=07h"SCSI"

Bitfields for Future Domain SCSI defect list info:
Bit(s)	Description	(Table 0143)
 7-5	drive LUN
 4	defect list is available
 3	defect list is complete (erase drive's defect list)
 2-0	defect table format
	(000=use defect table A, 100=use defect table B,
	 101=use defect table C)

Format of Future Domain SCSI defect table A:
Offset	Size	Description	(Table 0144)
 00h	WORD	number of bytes remaining in table
 02h	BYTE	reserved (0)
 03h	BYTE	reserved (0)
 04h	WORD	(big-endian) defect list length (4*number of defects)
 06h  4 DWORDs	(big-endian) defect block addresses

Format of Future Domain SCSI defect table B:
Offset	Size	Description	(Table 0145)
 00h	WORD	number of bytes remaining in table
 02h	BYTE	reserved (0)
 03h	BYTE	reserved (0)
 04h	WORD	(big-endian) defect list length (8*number of defects)
 06h 8N BYTEs	defect list [array] (see #0147)

Format of Future Domain SCSI defect table C:
Offset	Size	Description	(Table 0146)
 00h	WORD	number of bytes remaining in table
 02h	BYTE	reserved (0)
 03h	BYTE	reserved (0)
 04h	WORD	(big-endian) defect list length (8*number of defects)
 06h 8N BYTEs	defect list [array] (see #0147)

Format of Future Domain SCSI defect list entry:
Offset	Size	Description	(Table 0147)
 00h  3 BYTEs	(big-endian) cylinder number of defect
 03h	BYTE	head number of defect
 04h	DWORD	(big-endian) defect bytes from index
--------d-1306-------------------------------
INT 13 - Adaptec AHA-154xA/Bustek BT-542 BIOS - IDENTIFY SCSI DEVICES
	AH = 06h
Return: AH = status code (see #0140)
	CF clear if successful
	    AL = first drive supported
		(80h nonconcurrent operation, 81h concurrent operation)
	CF set on error
Desc:	determine the number of the first supported SCSI drive
Note:	the return value is 80h when two SCSI drives are supported, 81h if
	  only one SCSI drive is installed
SeeAlso: AH=08h
--------d-1306-------------------------------
INT 13 - V10DISK.SYS - READ DELETED SECTORS
	AH = 06h
	AL = number of sectors
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = sector number
	DH = head
	DL = drive
	ES:BX -> buffer
Return: AH = status code (see #0140)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
SeeAlso: AH=02h,AH=07h"V10DISK.SYS"
--------B-1307-------------------------------
INT 13 - FIXED DISK - FORMAT DRIVE STARTING AT GIVEN TRACK (XT,PORT)
	AH = 07h
	AL = interleave value (XT only)
	ES:BX = 512-byte format buffer (see AH=05h)
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = sector number
	DH = head
	DL = drive
Return: AH = status code (see #0140)
Note:	AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
	  than 1024 cylinders by placing bits 10 and 11 of the cylinder number
	  into bits 6 and 7 of DH
SeeAlso: AH=05h"FIXED",AH=06h"FIXED",AH=1Ah
--------d-1307-------------------------------
INT 13 - Future Domain SCSI BIOS - FORMAT DRIVE
	AH = 07h
	AL = interleave (0 = default, 1 = consecutive sectors,
	       2 - 255 = vendor unique)
	DL = hard drive ID
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140)
SeeAlso: AH=05h"SCSI",AH=06h"SCSI",AH=07h"FIXED"
--------d-1307-------------------------------
INT 13 - V10DISK.SYS - WRITE DELETED SECTORS
	AH = 07h
	AL = number of sectors
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = sector number
	DH = head
	DL = drive
	ES:BX -> buffer
Return: AH = status code (see #0140)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
SeeAlso: AH=03h,AH=06h"V10DISK.SYS"
--------B-1308-------------------------------
INT 13 - DISK - GET DRIVE PARAMETERS (PC,XT286,CONV,PS,ESDI,SCSI)
	AH = 08h
	DL = drive (bit 7 set for hard disk)
Return: CF set on error
	    AH = status (07h) (see #0140)
	CF clear if successful
	    AH = 00h
	    BL = drive type (AT/PS2 floppies only) (see #0148)
	    CH = low eight bits of maximum cylinder number
	    CL = maximum sector number (bits 5-0)
		 high two bits of maximum cylinder number (bits 7-6)
	    DH = maximum head number
	    DL = number of drives
	    ES:DI -> drive parameter table (floppies only)
Notes:	may return successful even though specified drive is greater than the
	  number of attached drives of that type (floppy/hard); check DL to
	  ensure validity
	for systems predating the IBM AT, this call is only valid for hard
	  disks, as it is implemented by the hard disk BIOS rather than the
	  ROM BIOS
	Toshiba laptops with HardRAM return DL=02h when called with DL=80h,
	  but fail on DL=81h.  The BIOS data at 40h:75h correctly reports 01h.
	may indicate only two drives present even if more are attached; to
	  ensure a correct count, one can use AH=15h to scan through possible
	  drives
SeeAlso: AH=06h"Adaptec",AH=13h"SyQuest",AH=48h,AH=15h,INT 1E,INT 41

(Table 0148)
Values for diskette drive type:
 01h	360K
 02h	1.2M
 03h	720K
 04h	1.44M
 05h	??? (reportedly an obscure drive type shipped on some IBM machines)
	2.88M on some machines (at least AMI 486 BIOS)
 06h	2.88M
--------d-1308-------------------------------
INT 13 - V10DISK.SYS - SET FORMAT
	AH = 08h
	AL = number of sectors
	CH = cylinder number (bits 8,9 in high bits of CL)
	CL = sector number
	DH = head
	DL = drive
Return: AH = status code (see #0140)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
Note:	details not available
SeeAlso: AH=03h,AH=06h"V10DISK.SYS"
--------y-130800DLF0-------------------------
INT 13 - SecureDrive - INSTALLATION CHECK
	AX = 08000h
	DL = F0h
Return: AX = EDCBh for version 1.0-1.2
	AX = EDCCh for version 1.3
	CX = code segment
	DX = data address within code segment
Program: SecureDrive by Mike Ingle  allows you to create
	  an encrypted partition on your harddisk.
--------B-1309-------------------------------
INT 13 - HARD DISK - INITIALIZE CONTROLLER WITH DRIVE PARAMETERS (AT,PS)
	AH = 09h
	DL = drive (80h for first, 81h for second)
Return: CF clear if successful
	CF set on error
	AH = status (see #0140)
Notes:	on the PC and XT, this function uses the parameter table pointed at by
	  INT 41
	on the AT and later, this function uses the parameter table pointed at
	  by INT 41 if DL=80h, and the parameter table pointed at by INT 46 if
	  DL=81h
SeeAlso: INT 41,INT 46
--------B-130A-------------------------------
INT 13 - HARD DISK - READ LONG SECTOR(S) (AT and later)
	AH = 0Ah
	AL = number of sectors
	CH = low eight bits of cylinder number
	CL = sector number (bits 5-0)
	     high two bits of cylinder number (bits 7-6)
	DH = head number
	DL = drive number (80h = first, 81h = second)
	ES:BX -> data buffer
Return: CF clear if successful
	CF set on error
	AH = status (see #0140)
	AL = number of sectors transferred
Notes:	this function reads in four to seven bytes of error-correcting code
	  along with each sector's worth of information
	data errors are not automatically corrected, and the read is aborted
	  after the first sector with an ECC error
	used for diagnostics only on PS/2 systems
SeeAlso: AH=02h,AH=0Bh
--------B-130B-------------------------------
INT 13 - HARD DISK - WRITE LONG SECTOR(S) (AT and later)
	AH = 0Bh
	AL = number of sectors
	CH = low eight bits of cylinder number
	CL = sector number (bits 5-0)
	     high two bits of cylinder number (bits 7-6)
	DH = head number
	DL = drive number (80h = first, 81h = second)
	ES:BX -> data buffer
Return: CF clear if successful
	CF set on error
	AH = status (see #0140)
	AL = number of sectors transferred
Notes:	each sector's worth of data must be followed by four to seven bytes of
	  error-correction information
	used for diagnostics only on PS/2 systems
SeeAlso: AH=03h,AH=0Ah
--------B-130C-------------------------------
INT 13 - HARD DISK - SEEK TO CYLINDER
	AH = 0Ch
	CH = low eight bits of cylinder number
	CL = sector number (bits 5-0)
	    high two bits of cylinder number (bits 7-6)
	DH = head number
	DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140)
SeeAlso: AH=00h,AH=02h,AH=0Ah,AH=47h
--------d-130D-------------------------------
INT 13 - HARD DISK - RESET HARD DISKS
	AH = 0Dh
	DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140)
Notes:	reinitializes the hard disk controller, resets the specified drive's
	  parameters, and recalibrates the drive's heads (seek to track 0)
	for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
	  both the master drive and the slave drive respond to the Reset
	  function that is issued to either drive
	not for PS/2 ESDI drives
SeeAlso: AH=00h,INT 21/AH=0Dh
--------B-130E-------------------------------
INT 13 - HARD DISK - READ SECTOR BUFFER (XT only)
	AH = 0Eh
	DL = drive number (80h = first, 81h = second hard disk)
	ES:BX -> buffer
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140)
Notes:	transfers controller's sector buffer.  No data is read from the drive
	used for diagnostics only on PS/2 systems
SeeAlso: AH=0Ah
--------B-130F-------------------------------
INT 13 - HARD DISK - WRITE SECTOR BUFFER (XT only)
	AH = 0Fh
	DL = drive number (80h = first, 81h = second hard disk)
	ES:BX -> buffer
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140)
Notes:	does not write data to the drive
	should be called before formatting to initialize an XT-type
	  controller's sector buffer
	used for diagnostics only on PS/2 systems
SeeAlso: AH=0Bh
--------B-1310-------------------------------
INT 13 - HARD DISK - CHECK IF DRIVE READY
	AH = 10h
	DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
--------B-1311-------------------------------
INT 13 - HARD DISK - RECALIBRATE DRIVE
	AH = 11h
	DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
Note:	causes hard disk controller to seek the specified drive to cylinder 0
SeeAlso: AH=00h,AH=0Ch,AH=19h"FIXED DISK"
--------B-1312-------------------------------
INT 13 - HARD DISK - CONTROLLER RAM DIAGNOSTIC (XT,PS)
	AH = 12h
	DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140 at AH=01h)
	AL = 00h
SeeAlso: AH=13h,AH=14h
--------d-1312-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - STOP SCSI DISK
	AH = 12h
	DL = hard drive ID
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140 at AH=01h)
Notes:	available at least on the TMC-870 8-bit SCSI controller BIOS v6.0A
	if the given drive is a SCSI device, the SCSI Stop Unit command is sent
	  and either "Disk prepared for shipping" or "Disk Stop command failed"
	  is displayed
	the TMC-950 does not support any Future Domain BIOS calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
--------d-1312-------------------------------
INT 13 - SyQuest - START/STOP SCSI DISK
	AH = 12h
	AL = subfunction
	    00h start disk
	    01h stop disk
	CX = wait flag
		 00h wait for ready
	    01h don't wait for ready
	DL = hard drive ID (bit 7 for hard disks must be set)
Return: CF set on error
	CF clear if successful
	AH = status
	    00h successful
	    01h invalid function request
	    80h timeout
SeeAlso: AH=12h"Future Domain",AH=13h"SyQuest"
--------B-1313-------------------------------
INT 13 - HARD DISK - DRIVE DIAGNOSTIC (XT,PS)
	AH = 13h
	DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140 at AH=01h)
	AL = 00h
SeeAlso: AH=12h"HARD DISK",AH=14h"HARD DISK"
--------d-1313-------------------------------
INT 13 - SyQuest - READ DRIVE PARAMATERS (for DOS 5+)
	AH = 13h
	DL = drive ID (bit 7 set for hard disks)
Return: CF set on error
	    AH = status (07h) (see #0140 at AH=01h)
	CF clear if successful
	    AH = 00h
	    BL = drive type (AT/PS2 floppies only) (see #0148)
	    CH = low eight bits of maximum cylinder number
	    CL = maximum sector number (bits 5-0)
		 high two bits of maximum cylinder number (bits 7-6)
	    DH = maximum head number
	    DL = number of drives
	    ES:DI -> drive parameter table (floppies only)
Notes:	the return values are identical to the standard INT 13/AH=08h, but the
	  number of drives is not limited to 2, so 
	scanning all possible drive numbers with the Read DASD Type call
	  (AH=15h) should generally be preferred to determine the number of
	  drives attached to the system.
SeeAlso: AH=08h,AH=12h"SyQuest",AH=15h,AH=59h"SyQuest"
--------B-1314-------------------------------
INT 13 - HARD DISK - CONTROLLER INTERNAL DIAGNOSTIC
	AH = 14h
Return: CF set on error
	CF clear if successful
	AH = status code (see #0140 at AH=01h)
	AL = 00h
SeeAlso: AH=12h,AH=13h
--------B-1315-------------------------------
INT 13 - DISK - GET DISK TYPE (XT 1/10/86 or later,XT286,AT,PS)
	AH = 15h
	DL = drive number (bit 7 set for hard disk)
Return: CF clear if successful
	    AH = type code
		00h no such drive
		01h floppy without change-line support
		02h floppy with change-line support
		03h hard disk
		    CX:DX = number of 512-byte sectors
	CF set on error
	    AH = status (see #0140 at AH=01h)
Note:	SyQuest can report type 01h or 02h for 'hard disks', since its media
	  is removable
SeeAlso: AH=08h,AH=16h,AH=17h,AH=19h"SCSI"
--------B-1316-------------------------------
INT 13 - FLOPPY DISK - DETECT DISK CHANGE (XT 1/10/86 or later,XT286,AT,PS)
	AH = 16h
	DL = drive number (00h-7Fh)
Return: CF clear if change line inactive
		 AH = 00h (disk not changed)
	CF set if change line active
	    AH = status
		01h invalid command (SyQuest)
		06h change line active or not supported
		80h drive not ready or not present
Notes:	call AH=15h first to determine whether the drive supports a change
	  line
	this call also clears the media-change status, so that a disk change
	  is only reported once
SeeAlso: AH=15h,AH=49h
--------B-1317-------------------------------
INT 13 - FLOPPY DISK - SET DISK TYPE FOR FORMAT (AT,PS)
	AH = 17h
	AL = format type
	    01h = 320/360K disk in 360K drive
	    02h = 320/360K disk in 1.2M drive
	    03h = 1.2M disk in 1.2M drive
	    04h = 720K disk in 720K or 1.44M drive
	DL = drive number
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
Note:	this function does not handle 1.44M drives; use AH=18h instead
SeeAlso: AH=15h,AH=18h
--------d-131700-----------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET INQUIRY INFO FROM SCSI DEVICE
	AX = 1700h
	CL = length of buffer
	DL = hard drive ID
	ES:BX -> buffer for info (see #0149)
Return: CF clear if successful
	    CH = number of bytes returned in buffer???
	CF set on error
	    AH = status code (see #0140 at AH=01h)
Notes:	this function is not available with 8-bit controller ROM versions < 7.0="" information="" block="" bytes="" 5-n="" are="" vendor-specific="" in="" older="" scsi="" devices="" the="" tmc-950="" does="" not="" support="" any="" future="" domain="" bios="" calls;="" instead,="" it="" provides="" a="" full="" cam="" implementation="" (see="" int="" 4f/ax="8100h)" seealso:="" ah="18h" scsi",ah="1Bh" scsi"""="" format="" of="" future="" domain="" scsi="" inquiry="" information="" block:="" offset="" size="" description="" (table="" 0149)="" 00h="" byte="" device="" type="" bits="" 0-4:="" peripheral="" device="" type="" (see="" #0150)="" bits="" 5-7:="" peripheral="" qualifier="" (see="" #0151)="" 01h="" byte="" device="" type="" modifier="" bits="" 0-6:="" device="" type="" modifier="" bit="" 7:="" removable="" medium="" 02h="" byte="" scsi="" version="" (see="" #0152)="" 03h="" byte="" data="" format/capabilities="" (see="" #0153)="" 04h="" byte="" additional="" data="" length="" (total="" remaining="" bytes)="" 05h="" 2="" bytes="" reserved="" 07h="" byte="" device="" capabilities="" (see="" #0154)="" 08h="" 8="" bytes="" vendor="" identification="" (space-padded="" ascii)="" 10h="" 8="" bytes="" product="" identification="" (space-padded="" ascii)="" 20h="" 4="" bytes="" product="" revision="" level="" (space-padded="" ascii)="" 24h="" 20="" bytes="" vendor="" specific="" 38h="" 40="" bytes="" reserved="" 60h="" var="" vendor="" specific="" parameters="" (table="" 0150)="" values="" for="" future="" domain="" scsi="" peripheral="" device="" type:="" 00h="" direct-access="" device="" (e.g.,="" magnetic="" disk)="" 01h="" sequential-access="" device="" (e.g.,="" magnetic="" tape)="" 02h="" printer="" device="" 03h="" processor="" device="" 04h="" write-once="" device="" (e.g.,="" some="" optical="" disks)="" 05h="" cd-rom="" device="" 06h="" scanner="" device="" 07h="" optical="" memory="" device="" (e.g.,="" some="" optical="" disks)="" 08h="" medium="" changer="" device="" (e.g.,="" jukeboxes)="" 09h="" communications="" device="" 0ah="" (defined="" by="" asc="" it8)="" 0bh="" (defined="" by="" asc="" it8)="" 0ch-1eh="" reserved="" 1fh="" unknown="" or="" no="" device="" type="" (table="" 0151)="" values="" for="" future="" domain="" scsi="" peripheral="" qualifier:="" 000b="" device="" is="" currently="" connected="" to="" this="" logical="" unit="" and="" available="" 001b="" target="" is="" capable="" of="" supporting="" the="" specified="" peripheral,="" but="" the="" physical="" device="" is="" not="" currently="" connected="" to="" this="" logical="" unit="" 010b="" reserved="" 011b="" target="" can't="" support="" a="" physical="" device="" on="" this="" logical="" unit="" 1xxb="" vendor="" specific="" bitfields="" for="" future="" domain="" scsi="" version:="" bit(s)="" description="" (table="" 0152)="" 0-2="" ansi-approved="" version="" 000="" device="" might="" or="" might="" not="" comply="" to="" ansi="" standard="" 001="" device="" complies="" to="" ansi="" scsi-1="" 010="" device="" complies="" to="" ansi="" scsi-2="" other="" reserved="" 3-5="" ecma="" version="" 6-7="" iso="" version="" bitfields="" for="" future="" domain="" scsi="" data="" format/capabilities:="" bit(s)="" description="" (table="" 0153)="" 0-2="" response="" data="" format="" 000="" information="" block="" is="" as="" specified="" in="" scsi-1="" 001="" information="" block="" is="" as="" specified="" in="" ccs="" 010="" information="" block="" is="" as="" specified="" in="" scsi-2="" other="" reserved="" 4-5="" reserved="" 6="" terminate="" i/o="" process="" supported="" 7="" asynchronous="" event="" notification="" supported="" bitfields="" for="" future="" domain="" scsi="" device="" capabilities:="" bit(s)="" description="" (table="" 0154)="" 0="" device="" responds="" to="" reset="" with="" a="" hard="" reset="" 1="" tagged="" command="" queuing="" supported="" 2="" reserved="" 3="" linked="" commands="" supported="" 4="" synchronous="" data="" transfer="" supported="" 5="" 16-transfers="" supported="" 6="" 32-transfers="" supported="" 7="" relative="" addressing="" supported="" --------b-1318-------------------------------="" int="" 13="" -="" disk="" -="" set="" media="" type="" for="" format="" (at="" model="" 3x9,xt2,xt286,ps)="" ah="18h" dl="drive" number="" ch="lower" 8="" bits="" of="" highest="" cylinder="" number="" (number="" of="" cylinders="" -="" 1)="" cl="sectors" per="" track="" (bits="" 0-5)="" top="" 2="" bits="" of="" highest="" cylinder="" number="" (bits="" 6,7)="" return:="" ah="status" 00h="" requested="" combination="" supported="" 01h="" function="" not="" available="" 0ch="" not="" supported="" or="" drive="" type="" unknown="" 80h="" there="" is="" no="" disk="" in="" the="" drive="" es:di="" -=""> 11-byte parameter table (see #0572 at INT 1E)
SeeAlso: AH=05h,AH=07h,AH=17h
--------d-1318-------------------------------
INT 13 - Future Domain SCSI BIOS - GET SCSI CONTROLLER INFORMATION
	AH = 18h
	DL = hard drive ID
Return: CF set on error
	    AH = status code (see #0140 at AH=01h)
	CF clear if successful
	    AX = 4321h (magic number)
	    CX = controller family code (see #0155)
	    ---if family code=0200h
		DH = number of exclusively ROM-controlled SCSI devices
		DL = canonical SCSI device number for specified drive
	    ---if family code <> 0200h
		BH = number of exclusively ROM-controlled SCSI devices
		BL = canonical SCSI device number for specified drive
Notes:	also sets an internal flag (non-resettable) which prevents some
	  controller messages from being displayed, allows writes to
	  removable devices (use caution!), and enables the INT 13 interface
	  for more than one drive (i.e. DL >= 81h) in at least some ROM
	  versions
	the TMC-950 does not support any Future Domain BIOS calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=05h"SCSI",AX=1700h"SCSI",AH=1Bh"SCSI",INT 4F/AX=8100h

(Table 0155)
Values for Future Domain SCSI controller family code:
 0200h	TMC-1680/? (ROM 3.0)
 0203h	TMC-1650/1660/1670/1680 (ROM 2.0)
 040Ah	TMC-820/830/840/850/860/870/875/880/885 (ROM <= 6.0a)="" 050dh="" tmc-840/841/880/881="" (rom="" 5.2d)="" 0700h="" tmc-830/850/860/875/885="" (rom="" 7.0)="" --------b-1319-------------------------------="" int="" 13="" -="" fixed="" disk="" -="" park="" heads="" on="" esdi="" drive="" (xt286,ps)="" ah="19h" dl="drive" return:="" cf="" set="" on="" error="" cf="" clear="" if="" successful="" ah="status" (see="" #0140="" at="" ah="01h)" seealso:="" ah="11h" --------d-1319-------------------------------="" int="" 13="" -="" future="" domain="" scsi="" controller="" -="" reinitialize="" drive="" ah="19h" dl="hard" drive="" id="" return:="" cf="" set="" on="" error="" ah="status" code="" (see="" #0140="" at="" ah="01h)" cf="" clear="" if="" successful="" ah="disk" type="" (03h="fixed" disk)="" cx:dx="number" of="" 512-byte="" sectors="" notes:="" sends="" scsi="" read="" capacity="" command="" to="" get="" number="" of="" logical="" blocks="" and="" adjusts="" the="" result="" for="" 512-byte="" sectors="" displays="" either="" "error="" in="" read="" capacity="" command"="" or="" "nnn="" bytes="" per="" sector"="" (nnn="256" or="" 512,="" the="" only="" sizes="" supported="" in="" the="" translation="" code)="" should="" probably="" be="" called="" when="" a="" removable="" device="" has="" its="" media="" changed="" returns="" the="" same="" values="" as="" ah="15h" the="" tmc-950="" does="" not="" support="" any="" future="" domain="" bios="" calls;="" instead,="" it="" provides="" a="" full="" cam="" implementation="" (see="" int="" 4f/ax="8100h)" seealso:="" ah="15h,AH=1Ah,INT" 4f/ax="8100h" --------d-131a-------------------------------="" int="" 13="" -="" esdi="" fixed="" disk="" -="" format="" unit="" (ps)="" ah="1Ah" al="defect" table="" entry="" count="" cl="format" modifiers="" (see="" #0156)="" dl="drive" (80h,81h)="" es:bx="" -=""> defect table (see #0157), ignored if AL=00h
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
Note:	if periodic interrupt selected, INT 15/AH=0Fh is called after each
	  cylinder is formatted
SeeAlso: AH=07h,INT 15/AH=0Fh

Bitfields for ESDI format modifiers:
Bit(s)	Description	(Table 0156)
 4	generate periodic interrupt
 3	perform surface analysis
 2	update secondary defect map
 1	ignore secondary defect map
 0	ignore primary defect map

Format of defect table entry [array]:
Offset	Size	Description	(Table 0157)
 00h  3 BYTEs	relative sector address (little-endian)
 03h	BYTE	flags and defect count
		bit 7: last logical sector on track
		bit 6: first logical sector on track
		bit 5: last logical sector on cylinder
		bit 4: logical sectors are pushed onto next track
		bits 3-0: number of defects pushed from previous cylinder
--------d-131A-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET SCSI PARTIAL MEDIUM CAPACITY
	AH = 1Ah
	CH = track (bits 8,9 in high bits of CL)
	CL = sector (01h to number of sectors/track for drive)
	DH = head
	DL = hard drive ID
Return: CF set on error
	AH = status code (see #0140 at AH=01h)
	CX:DX = logical block number of last quickly-accessible block after
		given block
Notes:	sends SCSI Read Capacity command with the PMI bit set to obtain the
	  logical block address of the last block after which a substantial
	  delay in data transfer will be encountered (usually the last block
	  on the current cylinder).  No translation to 512 byte sectors is
	  performed on the result if data is stored on the disk in other than
	  512 byte sectors.
	the TMC-950 does not support any Future Domain BIOS calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=15h,AH=19h"SCSI"
--------d-131B-------------------------------
INT 13 - ESDI FIXED DISK - GET MANUFACTURING HEADER
	AH = 1Bh
	AL = number of sectors to read
	DL = drive
	ES:BX -> buffer for manufacturing header (defect list)
Return: CF set on error
	CF clear if successful
	AH = status
Note:	manufacturing header format (Defect Map Record format) can be found
	  in IBM 70MB, 115MB Fixed Disk Drives Technical Reference
	the first sector read contains the manufacturing header with the number
	  of defect entries and the beginning of the defect map; the remaining
	  sectors contain the remainder of the defect map
--------d-131B-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET POINTER TO SCSI DISK INFO BLOCK
	AH = 1Bh
	DL = hard drive ID
Return: CF set on error
	    AH = status code (see #0140 at AH=01h)
	CF clear if successful
	    ES:BX -> SCSI disk information block (see #0158)
Notes:	also sets a non-resettable flag which prevents some controller messages
	  from being displayed
	the TMC-950 does not support any Future Domain BIOS calls; instead,
	  it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=18h"SCSI",AH=1Ch"SCSI"

Format of Future Domain SCSI disk information block:
Offset	Size	Description	(Table 0158)
 00h	BYTE	drive physical information (see #0159)
 01h	WORD	translated number of cylinders
 03h	BYTE	translated number of heads
 04h	BYTE	translated number of sectors per track (17, 34, or 63)
 05h	BYTE	drive address
		bits 0-2: logical unit number
		bits 3-5: device number
 06h	BYTE	01h at initialization
 07h	BYTE	sense code byte 00h, or extended sense code byte 0Ch
 08h	BYTE	00h
 09h	BYTE	00h or extended sense code byte 02h (sense key)
 0Ah	BYTE	00h
 0Bh 10 BYTEs	copy of Command Descriptor Block (CDB)
 15h	DWORD	translated number of sectors on device

Bitfields for Future Domain SCSI device physical information:
Bit(s)	Description	(Table 0159)
 0	???
 1	device uses parity
 2	256 bytes per sector instead of 512
 3	don't have capacity yet???
 4	disk is removable
 5	logical unit number is not present
--------d-131C-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET POINTER TO FREE CONTROLLER RAM
	AH = 1Ch
	DL = hard drive ID (any valid SCSI hard disk)
Return: CF set on error
		 AH = status code (see #0140 at AH=01h)
	CF clear if successful
	    ES:BX -> first byte of free RAM on controller
Notes:	the Future Domain TMC-870 contains 1024 bytes of RAM at offsets 1800h
	  to 1BFFh on-board the controller for storing drive information and
	  controller status; ES:BX points to the first byte available for other
	  uses
	ES contains the segment at which the controller resides; the
	  controller's two memory-mapped I/O ports are at offsets 1C00h, 1E00h
SeeAlso: AH=1Bh"SCSI"
--------d-131C-------------------------------
INT 13 U - ESDI FIXED DISK - ???
	AH = 1Ch
	AL = subfunction (01h-06h)
	DL = drive (80h,81h)
	???
Return: ???
Note:	these functions perform a controller command 0612h without DMA
--------d-131C08-----------------------------
INT 13 U - ESDI FIXED DISK - GET COMMAND COMPLETION STATUS
	AX = 1C08h
	DL = drive (80h,81h)
	ES:BX -> buffer for Command Complete Status Block (see #0160)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
SeeAlso: AX=1C09h,AX=1C0Ah

Format of ESDI Command Complete Status Block:
Offset	Size	Description	(Table 0160)
 00h	BYTE	07h
 01h	BYTE	size of block in words (07h)
 02h	BYTE	command error code (see #0161)
 03h	BYTE	command status code (see #0162)
 04h	BYTE	device error code, group 1 (see #0163)
 05h	BYTE	device error flags, group 2 (see #0164)
 06h	WORD	number of unprocessed sectors due to abnormal termination
 08h	DWORD	last Relative Sector Address processed by command
 0Ch	WORD	number of sectors corrected by ECC codes

(Table 0161)
Values for ESDI command error code:
 00h	successful
 01h	parameter invalid
 02h	unknown function
 03h	unsupported command
 04h	command cancelled
 05h	unknown function
 06h	controller diagnostics failed
 07h	formatting failed
 08h	format error in primary map
 09h	format error in secondary map
 0Ah	diagnostic failure during formatting
 0Bh	warning: secondary map too large during formatting
 0Ch	warning: non-zero defect
 0Dh	system checksum error during formatting
 0Eh	warning: incompatible device
 0Fh	warning: push table overflowed
 10h	warning: more than 15 sectors pushed to next cylinder
 11h	internal hardware error
 12h	warning: errors found while verifying sectors
 13h	invalid device
 FFh	device error

(Table 0162)
Values for ESDI command status code:
 01h	successful
 03h	successful after ECC
 05h	successful after retries
 06h	format partially completed
 07h	successful after ECC and retries
 08h	command completed with warning (see #0161)
 09h	abort complete
 0Ah	reset complete
 0Bh	data transfer ready (no status block)
 0Ch	command completed with failure (see #0163,#0164)
 0Dh	DMA error
 0Eh	command block error (see #0161)
 0Fh	bad attention code

(Table 0163)
Values for ESDI device error code, group 1:
 00h	successful
 01h	seek fault detected by device
 02h	interface fault
 03h	sector ID not found
 04h	disk not formatted
 05h	unrecoverable ECC error
 06h	ECC error in sector ID
 07h	invalid relative sector address
 08h	timeout
 09h	sector defective
 0Ah	disk changed (removable media)
 0Bh	selection error
 0Ch	write protected (removable media)
 0Dh	write fault
 0Eh	read fault
 0Fh	no index or sector pulse
 10h	device not ready
 11h	seek error detected by adapter
 12h	bad format
 13h	volume overflow
 14h	data address mark not found
 15h	sector ID not found
 16h	missing device configuration data
 17h	first/last relative sector flags missing
 18h	track empty
 81h	timeout while waiting for stop
 82h	timeout while waiting for end of data transfer
 84h	stopped awaiting data transfer during formatting
 85h	timeout while waiting for head switch
 86h	timeout while awaiting DMA completion

Bitfields for ESDI device error flags, group 2:
Bit(s)	Description	(Table 0164)
 7-5	unused
 4	ready
 3	selected
 2	write fault
 1	on track 0
 0	seek/command complete
--------d-131C09-----------------------------
INT 13 U - ESDI FIXED DISK - GET DEVICE STATUS
	AX = 1C09h
	DL = drive (80h,81h)
	ES:BX -> buffer for Device Status Block (see #0165)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
SeeAlso: AX=1C08h,AX=1C0Ah

Format of ESDI Device Status Block:
Offset	Size	Description	(Table 0165)
 00h	BYTE	08h
 01h	BYTE	number of words in block (09h)
 02h	BYTE	error flags
 03h	BYTE	unused
 04h	BYTE	command error code (see #0161)
 05h	BYTE	command status code (see #0162)
 06h	WORD	ESDI standard status
 08h  5 WORDs	ESDI vendor-specific status codes
--------d-131C0A-----------------------------
INT 13 U - ESDI FIXED DISK - GET DEVICE CONFIGURATION
	AX = 1C0Ah
	DL = drive (80h,81h)
	ES:BX -> buffer for Drive Configuration Status Block (see #0166)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
Note:	device configuration format can be found in IBM ESDI Fixed Disk Drive
	  Adapter/A Technical Reference
SeeAlso: AX=1C08h,AX=1C0Bh,AX=1C0Ch

Format of ESDI Drive Configuration Status Block:
Offset	Size	Description	(Table 0166)
 00h	BYTE	09h
 01h	BYTE	number of words in block (06h)
 02h	BYTE	flags
 03h	BYTE	number of spare sectors per cylinder
 04h	DWORD	total number of usable sectors
 08h	WORD	total number of cylinders
 0Ah	BYTE	tracks per cylinder
 0Bh	BYTE	sectors per track
--------d-131C0B-----------------------------
INT 13 U - ESDI FIXED DISK - GET ADAPTER CONFIGURATION
	AX = 1C0Bh
	ES:BX -> buffer for Controller Configuration Status Block (see #0167)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
SeeAlso: AX=1C0Ch

Format of ESDI Controller Configuration Status Block:
Offset	Size	Description	(Table 0167)
 00h	BYTE	E9h
 01h	BYTE	number of words in block (06h)
 02h	WORD	unused (0000h)
 04h	DWORD	controller microcode revision level
 08h  2 WORDs	unused (0000h)
--------d-131C0C-----------------------------
INT 13 U - ESDI FIXED DISK - GET POS INFORMATION
	AX = 1C0Ch
	ES:BX -> buffer for POS Information Status Block (see #0168)
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
SeeAlso: AX=1C0Bh

Format of ESDI POS Information Status Block:
Offset	Size	Description	(Table 0168)
 00h	BYTE	EAh
 01h	BYTE	number of words in block (05h)
 02h	WORD	magic value FFDDh
 04h	BYTE	POS register 3
 05h	BYTE	POS register 2
 06h	BYTE	POS register 5 (unused, FFh)
 07h	BYTE	POS register 4 (unused, FFh)
 08h	BYTE	POS register 7 (unused, FFh)
 09h	BYTE	POS register 6 (unused, FFh)
--------d-131C0D-----------------------------
INT 13 U - ESDI FIXED DISK - ???
	AX = 1C0Dh
	DL = drive (80h,81h)
	???
Return: ???
Note:	invokes controller command 0614h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Fh
--------d-131C0E-----------------------------
INT 13 U - ESDI FIXED DISK - TRANSLATE RBA TO ABA
	AX = 1C0Eh
	CH = low 8 bits of cylinder number
	CL = sector number, high two bits of cylinder number in bits 6 and 7
	DH = head number
	DL = drive number (80h,81h)
	ES:BX -> ABA number
Return: CF set on error
	CF clear if successful
	AH = status (see #0140 at AH=01h)
Note:	ABA (absolute block address) format can be found in IBM ESDI Adapter
	  Technical Reference by using its Device Configuration Status Block
--------d-131C0F-----------------------------
INT 13 U - ESDI FIXED DISK - ???
	AX = 1C0Fh
	DL = drive (80h,81h)
	???
Return: ???
Note:	invokes controller command 0614h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Dh,AX=1C12h
--------d-131C12-----------------------------
INT 13 U - ESDI FIXED DISK - ???
	AX = 1C12h
	DL = drive (80h,81h)
	???
Return: ???
Note:	invokes controller command 0612h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Fh
--------c-131D-------------------------------
INT 13 - IBMCACHE.SYS - CACHE STATUS
	AH = 1Dh
	AL = subfunction
	    01h get status record
		DL = drive???
		Return: ES:BX -> status record (see #0169)
			CF set on error
			    AH = error code
	    02h set cache status
		ES:BX -> status record (see #0169)
		DL = drive???
		Return: CF set on error

Format of IBMCACHE.SYS status record:
Offset	Size	Description	(Table 0169)
 00h	DWORD	total number of read requests
 04h	DWORD	total number of hits
 08h	DWORD	number of physical disk reads
 0Ch	DWORD	total number of sectors requested by physical disk reads
 10h  6 BYTEs	???
 16h	DWORD	pointer to start of error list (see #0170)
 1Ah	DWORD	pointer to end of error list
 1Eh	WORD	???
 20h	BYTE	using extended memory if nonzero
 21h	BYTE	???
 22h  4 BYTEs	ASCII version number
 26h	WORD	cache size in KB
 28h	WORD	sectors per page

Format of IBMCACHE.SYS error list:
Offset	Size	Description	(Table 0170)
 00h	DWORD	relative block address of bad page
 04h	BYTE	drive
 05h	BYTE	sector bit-map
 06h	WORD	next error
--------d-131F-------------------------------
INT 13 - SyQuest - DOOR LATCH/DOOR BUTTON DETECT
	AH = 1Fh
	AL = subfunction
		 00h allow media removal
	    01h prevent media removal (lock door)
	DL = drive ID (bit 7 set for hard disks)
Return:	CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code
		00h successful
		01h invalid function request
		80h timeout
		DDh media change requested
SeeAlso: AH=12h"SyQuest",AH=13h"SyQuest",AH=59h"SyQuest"
--------d-1320-------------------------------
INT 13 - DISK - ??? (Western Digital "Super BIOS")
	AH = 20h
	???
Return: ???
Notes:	returns some kind of status related to whether the drive contains its
	  default media type
	QEMM v6.00 calls INT 13/AX=2000h/DL=81h in some cases
--------b-1320-------------------------------
INT 13 U - Compaq DESKPRO/i - GET CURRENT MEDIA FORMAT
	AH = 20h
	DL = drive number (00h,01h)
Return: CF clear if successful
	    AL = media type (see #0171)
	CF set on error
	    AH = error code
		31h no such drive
		32h incorrect drive type stored in CMOS
Note:	this function is supported by the 3/8/93 ROM BIOS, but only partially
	  (AL is always 00h when successful) by the 8/3/93 version

(Table 0171)
Values for Compaq diskette media type:
 03h	720K
 04h	1.44M
 06h	2.88M
 0Ch	360K
 0Dh	1.2M
 0Eh	???
 0Fh	??? (1024-byte sectors)
--------c-1320-------------------------------
INT 13 u - QUICKCACHE II v4.20 - DISMOUNT
	AH = 20h
	AL = drive (00h = A:, etc. or 7Fh for all removable drives???
					or FFh for all drives)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
	  Associates, Inc.
Desc:	flush any dirty buffers for the specified drive(s) and then discard
	  those sector buffers
SeeAlso: AH=21h"QUICKCACHE",AH=22h"QUICKCACHE",AH=28h
--------d-1321-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - READ MULTIPLE DISK SECTORS
	AH = 21h
	AL = number of sectors to write
	CH = low byte of 12-bit cylinder number
	CL = starting sector (bits 0-5) and bits 8-9 of cylinder (bits 6-7)
	DH = head number (bits 0-5) and bits 10-11 of cylinder (bits 6-7)
	DL = drive number (80h,81h)
	ES:BX -> buffer for data to be read
Return: CF clear if successful
	    ES:BX buffer filled
	CF set on error
	AH = status (see #0140 at AH=01h)
Desc:	read from the disk using the Multiple Block mode available on newer
	  IDE drives and some hard disk controllers, which generates an
	  interrupt only after the end of transferring a group of sectors
	  rather than after each sector
Notes:	must call AH=24h"PS/1" before using this function
	input values in CL and DH are not range-checked
	the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=02h,AH=22h"PS/1",AH=23h"PS/1",AH=24h"PS/1"
--------c-1321-------------------------------
INT 13 u - QUICKCACHE II v4.20 - FLUSH CACHE
	AH = 21h
Return: AX = status (0000h successful)
Desc:	immediately write all dirty sectors back to disk
SeeAlso: AH=25h"QUICKCACHE",AH=2Eh,AH=2Fh
--------d-1322-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - WRITE MULTIPLE DISK SECTORS
	AH = 22h
	AL = number of sectors to write
	CH = low byte of 12-bit cylinder number
	CL = starting sector (bits 0-5) and bits 8-9 of cylinder (bits 6-7)
	DH = head number (bits 0-5) and bits 10-11 of cylinder (bits 6-7)
	DL = drive number (80h,81h)
	ES:BX -> buffer containing data to be written
Return: CF clear if successful
	CF set on error
	AH = status (see #0140 at AH=01h)
Desc:	write to the disk using the Multiple Block mode available on newer
	  IDE drives and some hard disk controllers, which generates an
	  interrupt only after the end of transferring a group of sectors
	  rather than after each sector
Notes:	must call AH=24h"PS/1" before using this function
	input values in CL and DH are not range-checked
	the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=03h,AH=21h"PS/1",AH=23h"PS/1",AH=24h"PS/1"
--------c-1322-------------------------------
INT 13 u - QUICKCACHE II v4.20 - ENABLE/DISABLE CACHE
	AH = 22h
	AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Note:	enables/disables caching of all drives
SeeAlso: AH=2Ch,AH=2Dh,AH=32h,AH=33h,AH=A3h,AH=A4h
--------d-1323-------------------------------
INT 13 U - HARD DISK - PS/1 and newer PS/2 - SET CONTROLLER FEATURES REGISTER
	AH = 23h
	AL = feature number (see #0172)
	DL = drive number (80h,81h)
	???
Return: CF clear if successful
	CF set on error
	AH = status (see #0140 at AH=01h)
SeeAlso: AH=21h"PS/1",AH=22h"PS/1",AH=24h"PS/1",AH=25h"PS/1"

(Table 0172)
Values for PS/1 hard disk feature number:
 01h	select 8-bit data transfers instead of 16-bit
 02h	enable write cache
 22h	Write Same, user-specified area
 33h	disable retries
 44h	set number of ECC bytes for read long/write long (see AH=0Ah,AH=0Bh)
 54h	set cache segments
 55h	disable lookahead
 66h	disable reverting to power-on defaults
 77h	disable error correctioni
 81h	select 16-bit data transfers (default)
 82h	disable write cache
 88h	enable error correction (default)
 99h	enable retries (default)
 AAh	enable lookahead
 BBh	set ECC length for read long/write long to four bytes
 CCh	enable reverting to power-on defaults
 DDh	Write Same, entire disk
--------c-1323-------------------------------
INT 13 U - QUICKCACHE II v4.20 - GET ??? ADDRESS
	AH = 23h
Return: AX = status (0000h successful)
	ES = segment of ??? data
--------d-1324-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - SET MULTIPLE MODE
	AH = 24h
	AL = number of sectors per block (2,4,8,16)
	DL = drive number (80h,81h)
Return: CF clear if successful
	CF set onerror
	AH = status (see #0140 at AH=01h)
Desc:	specify how many sectors the controller should transfer as a group
	  between operation-complete interrupts when using the Read Multiple
	  and Write Multiple functions (AH=21h,AH=22h)
Notes:	set the number of sectors to 0 to disable multiple-transfer mode
	the maximum value for the block size depends on the fixed disk
	  drive type.  The value is stored in byte 15h of the fixed disk
	  drive parameter table that is created by POST.
	the byte at address 0040h:0074h is set to status of operation.
SeeAlso: AH=21h"PS/1",AH=22h"PS/1",AH=23h"PS/1",AH=25h"PS/1"
--------c-1324-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET SECTORS
	AH = 24h
	BX = new number of sector buffers in cache
Return: AX = status
	    0000h successful
	    0001h failed--size adjusted
	    8000h cache cannot be resized while enabled
SeeAlso: AH=36h
--------d-1325-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - IDENTIFY DRIVE
	AH = 25h
	DL = drive number (80h,81h)
	ES:BX-> 512 byte buffer for reply packet
Return:	CF clear if successful
	CF set on error
	AH = status (see #0140 at AH=01h)
	buffer filled with ATA/IDE-style drive information block (see #0173)
Desc:	retrieves the 256 words of drive data stored on an IDE hard disk
Note:	the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=23h"PS/1"

Format of drive information block:
Offset	Size	Description	(Table 0173)
 00h	WORD	general drive configuration (see #0174)
 02h	WORD	number of cylinders
 04h	WORD	reserved
 06h	WORD	number of heads
 08h	WORD	number of unformatted bytes per track
 0Ah	WORD	number of unformatted bytes per sector
 0Ch	WORD	number of sectors per track
 0Eh  6 BYTEs	vendor unique
 14h 20 BYTEs	serial number in ASCII, 0000h=not specified)
 28h	WORD	buffer type
 2Ah	WORD	buffer size in 512 byte increments (0000h=not specified)
 2Ch	WORD	number of ECC bytes passed on Read/Write Long cmds
		0000h = not specified
 2Eh  8 BYTEs	firmware revision in ASCII, 0000h=not specified
 36h 40 BYTEs	model number in ASCII, 0000h=not specified
 5Eh	WORD	bits 15-8  Vendor Unique
		bits 7-0  00h = Read/Write Multiple commands not implemented
			  xxh = Maximum number of sectors that can be
			  transferred per interrupt on Read and Write
			  Multiple commands
 60h	WORD	0000h = cannot perform doubleword I/O
		0001h = can perform doubleword I/O
 62h	WORD	capabilities
		bit 15-9  0=reserved
		bit 8  1=DMA Supported
		bit 7-0	 Vendor Unique
 64h	WORD	reserved
 66h	WORD	bits 15-8 PIO data transfer cycle timing mode
		bits 7-0  Vendor Unique
 68h	WORD	bits 15-8 DMA data transfer cycle timing mode
		bits 7-0  Vendor Unique
 6Ah	WORD	bits 15-1 reserved
		bit 0	1=the fields reported in tranlation mode are valid
			0=the fields reported in translation mode may be valid
 6Ch	WORD	number of current cylinders
 6Eh	WORD	number of current heads
 70h	WORD	number of current sectors per track
 72h	DWORD	current capacity in sectors
 76h	WORD	reserved
 78h 136 BYTEs	not defined by ATA spec 2.6
100h 64 BYTEs	vendor unique
140h 96 BYTEs	reserved
Note:	the above description is as in the ATA (AT Attachment) Specification.

Bitfields for general drive configuration:
Bit(s)	Description	(Table 0174)
 15	0   reserved for non-magnetic drives
 14	format speed tolerance gap required
 13	track offset option available
 12	data strobe offset option available
 11	rotational speed tolerance is > 0.5%
 10	disk transfer rate > 10 Mbs
 9	disk transfer rate > 5Mbs but <= 10mbs="" 8="" disk="" transfer="" rate=""><= 5mbs="" 7="" removable="" cartridge="" drive="" 6="" fixed="" drive="" 5="" spindle="" motor="" control="" option="" implemented="" 4="" head="" switch="" time=""> 15 usec
 3	not MFM encoded
 2	soft sectored
 1	hard sectored
 0	reserved (0)
--------c-1325-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET FLUSH INTERVAL
	AH = 25h
	BX = interval
Return: AX = status (0000h successful)
Desc:	specify how often the cache should write dirty buffers to disk when
	  buffered writes are enabled
SeeAlso: AH=21h"QUICKCACHE",AH=2Ch,AH=2Eh
--------c-1326-------------------------------
INT 13 U - QUICKCACHE II v4.20 - UNINSTALL
	AH = 26h
Return: AX = status
	    0000h successful
	    0001h-00FFh interrupt vector which was hooked by another TSR
SeeAlso: AH=27h
--------c-1327--BX0000-----------------------
INT 13 u - QUICKCACHE II v4.20 - INSTALLATION CHECK
	AH = 27h
	BX = 0000h
Return: AX = 0000h if installed
	BX nonzero if installed
	    BH = major version
	    BL = binary minor version
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
	  Associates, Inc.
SeeAlso: AH=26h,AH=A0h,INT 16/AX=FFA5h/CX=1111h
--------c-1328-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET AUTOMATIC DISMOUNT
	AH = 28h
	AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
SeeAlso: AH=20h"QUICKCACHE"
--------c-1329-------------------------------
INT 13 U - QUICKCACHE II v4.20 - NOP
	AH = 29h
Return: AX = 0000h
--------c-132A-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFER SIZE
	AH = 2Ah
	AL = buffer size (1-30)
Return: AX = status (0000h successful)
Desc:	specify the number of cache sector buffers to dedicate to buffered read
	  and write operations
SeeAlso: AH=2Ch,AH=2Dh,AH=39h,AH=3Ah
--------c-132B-------------------------------
INT 13 U - QUICKCACHE II v4.20 - DRIVE ACCESS SOUNDS
	AH = 2Bh
	AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
--------c-132C-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFERED WRITES
	AH = 2Ch
	AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Desc:	specify whether the cache should delay disk writes
Note:	this function enables or disables delayed writes for all drives; use
	  AH=38h to change a single drive
SeeAlso: AH=25h"QUICKCACHE",AH=2Dh,AH=2Eh,AH=38h
--------c-132D-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFERED READ
	AH = 2Dh
	AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Desc:	specify whether the cache should attempt to read ahead of actual
	  requests
Note:	this function enables or disables read-ahead for all drives; use AH=37h
	  to change a single drive
SeeAlso: AH=2Ch,AH=37h
--------c-132E-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET FLUSH COUNT
	AH = 2Eh
	BX = flush count
Return: AX = status (0000h successful)
Desc:	specify how many dirty sectors the cache should write after each flush
	  interval (see AH=25h"QUICKCACHE") when buffered writes are enabled
SeeAlso: AH=21h"QUICKCACHE",AH=25h"QUICKCACHE",AH=2Ch
--------c-132F-------------------------------
INT 13 - QUICKCACHE II v4.20 - FORCE IMMEDIATE INCREMENTAL FLUSH
	AH = 2Fh
Return: AX = status (0000h successful)
Desc:	immediately flush up to "flushcount" dirty sectors to disk as if the
	  flush interval had expired
SeeAlso: AH=21h"QUICKCACHE"
--------c-1330-------------------------------
INT 13 u - QUICKCACHE II v4.20 - GET INFO
	AH = 30h
	AL = what to get
	    00h system info (see #0175)
	    01h drive info (see #0176)
	    02h access frequency (array of 30 words)
	    03h drive index
		(array of 32 bytes indicating BIOS drive for DOS drive)
	DS:DX -> buffer for info
Return: AX = status (0000h successful, 8000h invalid info specifier)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
	  Associates, Inc.

Format of QUICKCACHE II system info:
Offset	Size	Description	(Table 0175)
 00h	BYTE	flag: cache enabled
 01h	BYTE	flag: buffered writes enabled
 02h	BYTE	flag: buffered reads enabled
 03h	BYTE	flag: sounds enabled
 04h	BYTE	flag: autodismount enabled
 05h	BYTE	???
 06h	BYTE	flag: ???
 07h	BYTE	flag: ???
 08h	BYTE	flag: "em_assigned"
 09h	BYTE	flag: emulated EMS
 0Ah	BYTE	single sector bonus
 0Bh	BYTE	"sticky_max"
 0Ch	BYTE	write sector bonus
 0Dh	BYTE	bonus threshold
 0Eh	WORD	flush interval
 10h	WORD	flush count
 12h	WORD	reserve pool size
 14h	WORD	remaining space in reserve pool
 16h	WORD	required free memory
 18h	WORD	total cache sectors
 1Ah	WORD	dirty cache sectors
 1Ch	BYTE	trace buffer size
 1Dh	BYTE	reserved (padding)

Format of QUICKCACHE II drive info [16-element array, one element]:
Offset	Size	Description	(Table 0176)
 00h	BYTE	DOS drive number
 01h	BYTE	BIOS drive number
 02h	BYTE	maximum sector number
 03h	BYTE	maximum head number
 04h	BYTE	read buffer size
 05h	BYTE	write buffer size
 06h	BYTE	last status
 07h	BYTE	flag: enabled
 08h	BYTE	flag: buffered write enabled
 09h	BYTE	flag: buffered read enabled
 0Ah	BYTE	flag: in use (drive info is valid)
 0Bh	BYTE	flag: cylinder flush
 0Ch	BYTE	reserved (padding)
 0Dh	BYTE	sectors per track
 0Eh	WORD	sector size
 10h	WORD	sectors assigned
 12h	WORD	dirty sectors
 14h	WORD	reserved sectors
 16h	WORD	number of read errors
 18h	WORD	number of write errors
 1Ah	DWORD	"rio_count"
 1Eh	DWORD	number of cache misses
 22h	DWORD	"wio_count"
 26h	DWORD	"dio_count"
--------c-1331-------------------------------
INT 13 U - QUICKCACHE II v4.20 - RESERVE MEMORY
	AH = 31h
	BX = number of paragraphs of conventional memory to reserve for apps
Return: AX = status (0000h successful)
--------c-1332-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE CACHING FOR SPECIFIC DRIVE
	AH = 32h
	AL = drive number (00h=A:)
Return: AX = status (0000h successful)
SeeAlso: AH=22h"QUICKCACHE",AH=33h
--------c-1333-------------------------------
INT 13 U - QUICKCACHE II v4.20 - DISABLE CACHING FOR SPECIFIC DRIVE
	AH = 33h
	AL = drive number (00h=A:)
Return: AX = status (0000h successful)
SeeAlso: AH=22h"QUICKCACHE",AH=32h
--------c-1334-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SECTOR LOCKING
	AH = 34h
	AL = function
	    00h end sector locking/unlocking
	    01h lock all accessed sectors into cache
	    02h unlock all accessed sectors and discard from cache
Return: AX = status (0000h successful)
SeeAlso: AH=20h"QUICKCACHE",AH=35h
--------c-1335-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET LOCK POOL SIZE
	AH = 35h
	BX = number of sectors in lock pool
Return: AX = status (0000h successful)
Desc:	specify the number of cache sector buffers which may be dedicated to
	  data locked into the cache
SeeAlso: AH=34h
--------c-1336-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET TRACE BUFFER SIZE
	AH = 36h
	AL = new size of trace buffer
Return: AX = status (0000h successful)
Note:	called with AL=05h during an INT 13/AH=24h"QUICKCACHE" call
SeeAlso: AH=24h"QUICKCACHE"
--------c-1337-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BUFFERED READS FOR SPECIFIC DRIVE
	AH = 37h
	AL = new state (00h disabled, else enabled)
	DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Dh,AH=38h
--------c-1338-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BUFFERED WRITES FOR SPECIFIC DRIVE
	AH = 38h
	AL = new state (00h disabled, else enabled)
	DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Ch,AH=37h
--------c-1339-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET READ BUFFER SIZE FOR SPECIFIC DRIVE
	AH = 39h
	AL = new size of read buffer
	DL = drive number (00h = A:)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
	  Associates, Inc.
SeeAlso: AH=2Ah,AH=3Ah
--------c-133A-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET WRITE BUFFER SIZE FOR SPECIFIC DRIVE
	AH = 3Ah
	AL = new size of write buffer
	DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Ah,AH=39h
--------c-133B-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE ???
	AH = 3Bh
	AL = new state of ??? (01h enabled, else disabled)
Return: AX = status (0000h successful)
Note:	is affected by the flag reported at offset 05h of the system info
	  returned by AH=30h, and sets the flag at offset 06h
SeeAlso: AH=3Ch
--------c-133C-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE ???
	AH = 3Ch
	AL = new state of ??? (01h enabled, else disabled)
Return: AX = status (0000h successful)
Note:	is affected by the flag reported at offset 05h of the system info
	  returned by AH=30h, and sets the flag at offset 07h
SeeAlso: AH=3Bh
--------c-133D-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE CYLINDER FLUSH FOR DRIVE
	AH = 3Dh
	AL = new state (01h enabled, else disabled)
	DL = drive number (00h = A:)
Return: AX = status (0000h successful)
--------c-133E-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET SINGLE-SECTOR BONUS
	AH = 3Eh
	AL = new value for bonus
Return: AX = status (0000h successful)
Desc:	specify the bonus score to give to single-sector transfers in order to
	  keep those sectors in the cache longer
--------c-133F-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BONUS THRESHOLD
	AH = 3Fh
	AL = new value for bonus threshold
Return: AX = status (0000h successful)
--------!---Section--------------------------
Interrupt List, part 2 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------c-1340-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET "sticky_max"
	AH = 40h
	AL = new value for "sticky_max"
Return: AX = status (0000h successful)
SeeAlso: AH=41h"QUICKCACHE"
--------d-1341--BX55AA-----------------------
INT 13 - IBM/MS INT 13 Extensions - INSTALLATION CHECK
	AH = 41h
	BX = 55AAh
	DL = drive (80h-FFh)
Return:	CF set on error (not supported)
	    AH = 01h (invalid function)
	CF clear if successful
	    BX = AA55h if installed
	    AH = major version of extensions (01h = 1.x, 20h = 2.0)
	    AL = internal use
	    CX = API subset support bitmap (see #0177)
	    DH = extension version (v2.0+ ??? -- not present in 1.x)
Note:	the Phoenix Enhanced Disk Drive Specification v1.0 uses version 2.0 of
	  the INT 13 Extensions API
SeeAlso: AH=42h"INT 13 Ext",AH=48h"INT 13 Ext"

Bitfields for IBM/MS INT 13 Extensions API support bitmap:
Bit(s)	Description	(Table 0177)
 0	extended disk access functions (AH=42h-44h,47h,48h) supported
 1	removable drive controller functions (AH=45h,46h,48h,49h,INT 15/AH=52h)
	  supported
 2	extended drive parameter table is valid (see #0179,#0182)
 3-15	reserved (0)
--------c-1341-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SAVE/RESTORE ???
	AH = 41h
	AL = direction
	    01h save to file
	    else restore from file
	ES:DI -> 1024-byte buffer for ???
Return: AX = status (0000h successful, 8000h failed)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
	  Associates, Inc.
SeeAlso: AH=40h"QUICKCACHE"
--------d-1342-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED READ
	AH = 42h
	DL = drive number
	DS:SI -> disk address packet (see #0178)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (see #0140)
		 disk address packet's block count field set to number of blocks
	      successfully transferred
SeeAlso: AH=41h"INT 13 Ext",AH=43h"INT 13 Ext"

Format of disk address packet:
Offset	Size	Description	(Table 0178)
 00h	BYTE	10h (size of packet)
 01h	BYTE	reserved (0)
 02h	WORD	number of blocks to transfer
 04h	DWORD	-> transfer buffer
 08h	QWORD	starting absolute block number
--------N-134257DX1234-----------------------
INT 13 U - Beame&Whiteside BWLPD - INSTALLATION CHECK
	AX = 4257h ("BW")
	DX = 1234h
Return: BX = 414Ch if installed
Program: BWLPD is the printer daemon from the BW-NFS package
SeeAlso: INT 62/AH=00h"ETHDEV"
--------d-1343-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED WRITE
	AH = 43h
	AL = write flags
	   bit 0: verify write
		bits 7-1 reserved (0)
	DL = drive number
	DS:SI -> disk address packet (see #0178)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (see #0140)
	    disk address packet's block count field set to number of blocks
	      successfully transferred
Note:	the BIOS returns CF set/AH=01h (invalid function) if verify is
	  requested but not supported
SeeAlso: AH=41h"INT 13 Ext",AH=42h"INT 13 Ext",AH=44h
--------d-1344-------------------------------
INT 13 - IBM/MS INT 13 Extensions - VERIFY SECTORS
	AH = 44h
	DL = drive number
	DS:SI -> disk address packet (see #0178)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (see #0140)
	    disk address packet's block count field set to number of blocks
	      successfully verified
SeeAlso: AH=41h"INT 13 Ext",AH=42h"INT 13 Ext",AH=47h
--------d-1345-------------------------------
INT 13 - IBM/MS INT 13 Extensions - LOCK/UNLOCK DRIVE
	AH = 45h
	AL = operation
	    00h lock media in drive
	    01h unlock media
	    02h check lock status
	DL = drive number
Return: CF clear if successful
	    AH = 00h
	    AL = lock state (00h = unlocked)
	CF set on error
	    AH = error code (see #0140)
Notes:	this function is required to be supported for any removable drives
	  numbered 80h or higher
	up to 255 locks may be placed on a drive, and the media will not
	  be physically unlocked until all locks have been removed
SeeAlso: AH=41h"INT 13 Ext",AH=46h,AH=49h,INT 15/AH=52h"Phoenix"
----------1346-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EJECT MEDIA
	AH = 46h
	AL = 00h (reserved)
	DL = drive number
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (see #0140)
SeeAlso: AH=49h,INT 15/AH=52h"Phoenix"
----------1347-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED SEEK
	AH = 47h
	DL = drive number
	DS:SI -> disk address packet (see #0178)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (see #0140)
SeeAlso: AH=0Ch,AH=42h"INT 13 Ext"
--------d-1348-------------------------------
INT 13 - IBM/MS INT 13 Extensions - GET DRIVE PARAMETERS
	AH = 48h
	DL = drive (80h-FFh)
	DS:SI -> buffer for drive parameters (see #0179)
Return: CF clear if successful
	    DS:SI buffer filled
	CF set on error
	    AH = error code (see #0140)
SeeAlso: AH=08h,AH=41h,AH=49h

Format of IBM/MS INT 13 Extensions drive parameters:
Offset	Size	Description	(Table 0179)
 00h	WORD	(call) size of buffer (001Ah for v1.x, 001Eh for v2.0)
		(ret) size of returned data
 02h	WORD	information flags (see #0180)
 04h	DWORD	number of cylinders on drive
 08h	DWORD	number of heads on drive
 0Ch	DWORD	number of sectors per track
 10h	QWORD	total number of sectors on drive
 18h	WORD	bytes per sector
---v2.0---
 1Ah	DWORD	-> configuration parameters (see #0182)
		FFFFh:FFFFh if not available
SeeAlso: #0181,#1855

Bitfields for IBM/MS INT 13 Extensions information flags:
Bit(s)	Description	(Table 0180)
 0	DMA boundary errors handled transparently
 1	cylinder/head/sectors-per-track information is valid
 2	removable drive
 3	write with verify supported
 4	drive has change-line support (required if drive >= 80h is removable)
 5	drive can be locked (required if drive >= 80h is removable)
 6	CHS information set to maximum supported values, not current media

Format of Phoenix Enhanced Disk Drive Spec translated drive parameter table:
Offset	Size	Description	(Table 0181)
 00h	WORD	number of cylinders
 02h	BYTE	number of heads
 03h	BYTE	A0h (signature indicating translated table)
 04h	BYTE	number of physical sectors per track
 05h	WORD	starting write precompensation cylinder number
 07h	BYTE	reserved
 08h	BYTE	control byte (see #1857 at INT 41)
 09h	WORD	number of physical cylinders
 0Bh	BYTE	number of physical heads
 0Ch	WORD	cylinder number of landing zone
 0Eh	BYTE	number of logical sectors per track
 0Fh	BYTE	checksum
Program: the Phoenix Enhanced Disk Drive Specification is an addition to the
	  IBM/MS INT 13 extensions
SeeAlso: #0182,#1855

Format of Phoenix Enhanced Disk Drive Spec fixed disk param table extension:
Offset	Size	Description	(Table 0182)
 00h	WORD	physical I/O port base address
 02h	WORD	disk-drive control port address
 04h	BYTE	drive flags (see #0183)
 05h	BYTE	proprietary information
		bits 7-4 reserved (0)
		bits 3-0: Phoenix proprietary (used by BIOS)
 06h	BYTE	IRQ (bits 3-0; bits 7-4 reserved and must be 0)
 07h	BYTE	sector count for multi-sector transfers
 08h	BYTE	DMA control
		bits 7-4: DMA type
		bits 3-0: DMA channel
 09h	BYTE	programmed I/O control
		bits 7-4: reserved (0)
		bits 3-0: PIO type (1,2, or 3)
 0Ah	WORD	drive options (see #0184)
 0Ch  2 BYTEs	reserved (0)
 0Eh	BYTE	extension revision level (high nybble=major, low nybble=minor)
		(currently 10h)
 0Fh	BYTE	2's complement checksum of bytes 00h-0Eh
SeeAlso: #0181

Bitfields for Phoenix Enhanced Disk Drive Spec drive flags:
Bit(s)	Description	(Table 0183)
 7	reserved (1)
 6	LBA enabled
 5	reserved (1)
 4	drive is slave
 3-0	reserved (0)
SeeAlso: #0182,#0184

Bitfields for Phoenix Enhanced Disk Drive Spec drive options:
Bit(s)	Description	(Table 0184)
 0	fast PIO enabled
 1	fast DMA access enabled
 2	block PIO (multi-sector transfers) enabled
 3	CHS translation enabled
 4	LBA translation enabled
 5	removable media
 6	CD-ROM
 7	32-bit transfer mode
 15-8	reserved
SeeAlso: #0182,#0183
--------d-1349-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED MEDIA CHANGE
	AH = 49h
	DL = drive number
Return: CF clear if media has not changed
	    AH = 00h
	CF set if media may have changed
	    AH = 06h (see #0140)
Note:	unlike AH=16h, any drive number may be specified
SeeAlso: AH=16h,AH=41h"INT 13 Ext",AH=46h
--------v-135342CX0001-----------------------
INT 13 - ScanBoot - INSTALLATION CHECK
	AX = 5342h ("SB")
	CX = 0001h
	DX = 0000h
Return: CF clear if ScanBoot installed
	   AX = 0000h
	   CX = serial number ("SW" if shareware release)
	   DX = version
	   BX,SI,ES destroyed
Program: ScanBoot is a virus-detection TSR by PanSoft
--------d-135501-----------------------------
INT 13 - Seagate ST01/ST02 - Inquiry
	AX = 5501h
	DH = number of bytes to transfer
	DL = drive ID (80h, 81h, ...)
	ES:BX -> buffer for results
Return:	ES:BX buffer filled with the Inquiry results
Notes:	the ST01/ST02 BIOS does not return any success/failure indication,
	  so all commands must be assumed to have been successful
	the ST01/ST02 BIOS always maps its drives after the previous BIOS
	  drives without changing the BIOS drive count at 0040h:0075h
	this command is identical to the SCSI Inquiry command
--------d-135502-----------------------------
INT 13 - Seagate ST01/ST02 - RESERVED
	AX = 5502h
--------d-135503-----------------------------
INT 13 - Seagate ST01/ST01 - Set Device Type Qualifier (DTQ)
	AX = 5503h
	DH = DTQ byte (see #0185)
	DL = drive ID (80h, 81h, ...)
Return:	nothing

Bitfields for DTQ byte:
Bit(s)	Description	(Table 0185)
 7	reserved
 6	SCSI drive attached
 5	reserved
 4	selected drive is ST225N/NP (Paired)
 3	selected drive is ST225N
 2	Host Adapter checks parity on the selected drive 
 1	selected drive has been installed
 0	Seagate installation software present
--------d-135504-----------------------------
INT 13 U - Seagate - ??? - RETURN IDENTIFICATION
	AX = 5504h
	DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
	    AX = 4321h if ST01/ST02h
	    AX = 4322h if ??? Seagate controller
	CF set on error
SeeAlso: AX=5505h,AX=5514h
--------d-135504-----------------------------
INT 13 - Seagate ST01/ST02 - RETURN IDENTIFICATION
	AX = 5504h
	DL = drive ID (80h, 81h, ...)
Return:	AX = 4321h
	BL = selected drive number (00h, 01h)
	BH = number of drives attached to Host Adapter (max. 2)
--------d-135505-----------------------------
INT 13 - Seagate - ??? - PARK HEADS
	AX = 5505h
	DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
	CF set on error
SeeAlso: AX=5504h,AX=5515h
--------d-135505-----------------------------
INT 13 - Seagate ST01/ST02 - PARK HEADS
	AX = 5505h
	DL = drive ID (80h, 81h, ...)
	DH = subfunction
	    00h park heads (SCSI Stop command)
	    01h un-park heads (SCSI Start command)	  
Return:	nothing
--------d-135506-----------------------------
INT 13 - Seagate ST01/ST02 - SCSI Bus Parity
	AX = 5506h
	DL = drive ID (80h, 81h, ...)
	DH = subfunction
	    00h disable parity check
	    01h enable parity check
	    02h return current parity setting
Return:	AL = status
		 00h parity checking disabled
	    01h parity checking enabled
--------d-135507-----------------------------
INT 13 - Seagate ST01/ST02 - RESERVED FUNCTIONS
	AX = 5507h to 550Dh
Note:	officially listed as "reserved"
--------d-135514-----------------------------
INT 13 U - Seagate - ???
	AX = 5514h
	DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
	CF set on error
	AX = return value (FEBEh,FEBFh,FEDAh,FEDBh)
SeeAlso: AX=5504h,AX=5515h
--------d-135515-----------------------------
INT 13 U - Seagate - PARK HEADS???
	AX = 5515h
	DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
	CF set on error
Note:	appears to be identical to AX=5505h
SeeAlso: AX=5504h,AX=5505h
--------d-1359-------------------------------
INT 13 - SyQuest - Generic SCSI pass through
	AH = 59h
	CX = HOST_ID, 0-based
	DX = 80h
	ES:BX pointer to SCSI structure (see #0186)
Return: CF clear
	AH = 95h
SeeAlso: AH=12h"SyQuest",AH=13h"SyQuest",AH=1Fh"SyQuest"

Format of SyQuest SCSI structure:
Offset	Size	Description	(Table 0186)
 00h	WORD	opcode (see #0187)
 02h	BYTE	target's SCSI ID
 03h	BYTE	target's logical unit number
 04h	BYTE	data direction (00h no data xfer, 01h data in, FFh data out)
 05h	BYTE	host status
		00h successful
		01h selection time out
		02h data over-run or under-run
 06h	BYTE	target status at command completion
		00h successful
		02h check status
		08h busy
 07h	BYTE	command data block length
 08h	DWORD	request data length
 0Ch	DWORD	result data length (actual length of data transferred)
 10h	DWORD	-> CDB
 14h	DWORD	-> data buffer
Note:	The handler does not perform a 'Request Sense' command if there was an error

(Table 0187)
Values for SCSI opcode:
 00h	verify interface
	clears carry flag and returns if function is available
 01h	returns the ID of the INT 13h Handler in a NULL terminated string of 
	length less than 40 byte including the terminator.
	The string is stored in the buffer pointed by p_buf.
 02h	device mapping info. The caller provides a one byte buffer.
	The handler stores the Int 13h Device ID (80h or above) in the buffer.
	It stores 0 if that target does not exists.
 03h	execute SCSI command
 04h	device reset
 05h	SCSI bus reset
--------d-1370-------------------------------
INT 13 - Priam EDVR.SYS DISK PARTITIONING SOFTWARE???
	AH = 70h
	???
Return: ???
Note:	Priam's EDISK.EXE (FDISK replacement) and EFMT.EXE (low-level
	  formatting program) make this call, presumably to EDVR.SYS (the
	  partitioning driver)
SeeAlso: AH=ADh
----------1375-------------------------------
INT 13 - ???
	AH = 75h
	???
Return: AH = ???
	???
Note:	intercepted by PC-Cache (v5.1 only)
----------1376-------------------------------
INT 13 - ???
	AH = 76h
	???
Return: AH = ???
	???
Note:	intercepted by PC-Cache (v5.1 only)
--------c-137B00-----------------------------
INT 13 - NOW! v3.05 - GET INFORMATION
	AX = 7B00h
	CX:DX -> 1F8h-byte buffer for information record (see #0188)
Return: AX = 0000h
	BX = segment of main resident code
	ES = ???
Program: NOW! is a disk cache by Vertisoft Systems, Inc.
SeeAlso: AX=7B02h,AH=EFh

Format of NOW! information record:
Offset	Size	Description	(Table 0188)
 00h 80 BYTEs	name of directory from which NOW! was started
 50h 424 BYTEs	???
 81h  ? BYTEs	array of bytes for ???
 F7h 250 BYTEs	array of 25 entries, one per drive???
	Offset	Size	Description
	 00h  2 BYTEs	???
	 02h	WORD	???
	 04h	WORD	???
	 06h  4 BYTEs	???
1F1h  7 BYTEs	???
--------c-137B01-----------------------------
INT 13 - NOW! v3.05 - ???
	AX = 7B01h
Return: DX = segment of ???
SeeAlso: AX=7B00h
--------c-137B02-----------------------------
INT 13 - NOW! v3.05 - SET INFORMATION
	AX = 7B02h
	BX = segment of ??? (10h above a PSP)
	CX:DX -> 1F8h-byte information record (see #0188)
Return: ???
Program: NOW! is a disk cache by Vertisoft Systems, Inc.
Note:	NOW! grabs the INT 24h value from the PSP reached via the segment in
	  BX
SeeAlso: AX=7B00h
--------c-137B03-----------------------------
INT 13 - NOW! v3.05 - ???
	AX = 7B03h
	???
Return: ???
SeeAlso: AX=7B00h,AX=7B04h
--------c-137B04-----------------------------
INT 13 - NOW! v3.05 - ???
	AX = 7B04h
	???
Return: ???
SeeAlso: AX=7B03h
--------c-137B05-----------------------------
INT 13 - NOW! v3.05 - GET DISK ACCESSES???
	AX = 7B05h
Return: BX:AX = number of physical accesses???
	DX:CX = total disk accesses???
SeeAlso: AX=7B00h,AX=7B06h
--------c-137B06-----------------------------
INT 13 - NOW! v3.05 - GET ???
	AX = 7B06h
	BX = ???
Return: AX = 0000h
	BX = ???
SeeAlso: AX=7B05h,AX=7B07h
--------c-137B07-----------------------------
INT 13 - NOW! v3.05 - GET ???
	AX = 7B07h
Return: AX = ???
	BX = ???
	CX = ???
	DX = ???
SeeAlso: AX=7B06h
--------c-137B08-----------------------------
INT 13 - NOW! v3.05 - ???
	AX = 7B08h
	CX = ??? (default 00h)
Return: ???
SeeAlso: AX=7B00h
--------c-1380--CX6572-----------------------
INT 13 - FAST! v4.02+ - API
	AH = 80h
	CX = 6572h
	DX = 1970h
	ES:BX -> request packet (see #0190)
	AL = function number (see #0189)
Return: AH = status (except function 06h)
	    00h if successful
	    01h invalid function
	    05h not supported by the installed variant
	CF clear if successful
	CF set on error
	AL may be destroyed
Program: FAST! is a disk cache by Future Computing Systems and marketed by BLOC
	  Publishing Corp.
SeeAlso: AX=8001h,AX=8006h,AX=8007h
Index:	hotkeys;FAST!

(Table 0189)
Values for FAST! function:
 01h	get cache information (see separate entry)
 04h	disable cache
 05h	enable cache and reset statistics
 06h	installation check (see separate entry)
 07h	unhook interrupts (see separate entry)
 09h	flush cache
 0Ah	(v4.02+) enable staged writes
 0Bh	(v4.02+) disable staged writes
 0Ch	(v4.02+) enable beep on flush
 0Dh	(v4.02+) disable beep on flush
 0Eh	???
 0Fh	???
 10h	(v4.12+) enable hotkeys
 11h	(v4.12+) disable hotkeys
 12h	(v4.13+) set idle delay
 13h	(v4.13+) set flush dirty percentage
 14h	(v5.00+) enable mouse checks
 15h	(v5.00+) disable mouse checks
 16h	(v5.00d+) reduce cache size to minimum
 17h	(v5.00d+) increase cache size to maximum

Format of FAST! request packet:
Offset	Size	Description	(Table 0190)
 00h	DWORD	pointer to 19-byte signature string (see #0191)
 04h	DWORD	pointer to buffer for data (if needed by function)

(Table 0191)
Values for FAST! v4.04-v5.03 signature string:
 13h 07h 06h 08h 11h 18h 0Fh 0Eh 02h 18h 13h 08h 0Bh 08h 01h 00h 04h 08h 15h
--------c-138001CX6572-----------------------
INT 13 - FAST! v4.02+ - GET CACHE INFORMATION
	AX = 8001h
	CX = 6572h
	DX = 1970h
	ES:BX -> request packet (see #0192)
Return: AH = 00h if successful
SeeAlso: AH=80h,AX=8006h

Format of FAST! request packet:
Offset	Size	Description	(Table 0192)
 00h	DWORD	-> 19-byte signature string (see #0191)
 04h	DWORD	-> buffer for cache information (see #0193)

Format of FAST! cache information (v5.00-5.03):
Offset	Size	Description	(Table 0193)
 00h	WORD	binary version number of FAST! (v5.00 = 01F4h)
 02h	BYTE	revision letter (61h = X.XXa, 62h = X.XXb, etc.)
 03h	BYTE	FAST! variant
		(01h = FASTE, 02h = FASTX BIOS, 04h = FASTC, 20h = FASTX XMS)
 04h	DWORD	total number of read requests
 08h	DWORD	number of physical disk reads
 0Ch	DWORD	grabbed hash buckets
 10h	DWORD	"st_386mem"
 14h	DWORD	total number of writes (only counted when staging enabled)
 18h	DWORD	number of physical disk writes (only when staging enabled)
 1Ch	DWORD	number of write errors while flushing cache
 20h	WORD	flags1 (see #0194)
 22h	WORD	flags
		bit 0: ???
		bit 1: staged writes enabled
 24h	WORD	???
 26h	WORD	maximum cache size in KB
 28h	WORD	minimum cache size in KB
 2Ah	WORD	segment of first cache buffer (FASTC)
		segment of EMS page frame (FASTE)
		XMS handle (FASTX XMS)
 2Ch	WORD	number of hash buckets containing no entries
 2Eh	WORD	number of hash buckets containing one entry
 30h	WORD	number of hash buckets containing two entries
 32h	WORD	number of hash buckets containing three entries
 34h	WORD	number of hash buckets containing four entries
 36h	WORD	number of hash buckets containing five entries
 38h	WORD	maximum contiguous sectors
 3Ah	WORD	hash factor
 3Ch	WORD	number of paragraphs of memory used below 1M
 3Eh	WORD	entries per hash bucket
 40h	WORD	idle delay in seconds
 42h  2 BYTEs	???
 44h	WORD	staged write threshold percentage
 46h  2 BYTEs	???
 48h	WORD	number of dirty sectors
 4Ah	WORD	number of staged write buffers
 4Ch	WORD	current cache size in KB
 4Eh	WORD	beep frequency in Hz
 50h	WORD	???
 52h	WORD	???

Bitfields for FAST! flags1:
Bit(s)	Description	(Table 0194)
 0	beep on flush
 3	hotkeys enabled
 4	mouse idle check enabled
 8	caching enabled
 13	???
--------c-138006CX6572-----------------------
INT 13 - FAST! v4.02+ - INSTALLATION CHECK
	AX = 8006h
	CX = 6572h
	DX = 1970h
	ES:BX -> request packet (see #0195)
Return: AX = 1965h if installed
SeeAlso: AH=80h,AX=8001h,AX=8007h

Format of FAST! request packet:
Offset	Size	Description	(Table 0195)
 00h	DWORD	-> 19-byte signature string (see #0191)
--------c-138007CX6572-----------------------
INT 13 - FAST! v4.02+ - UNHOOK INTERRUPTS
	AX = 8007h
	CX = 6572h
	DX = 1970h
	ES:BX -> request packet (see #0196)
Return: AX = 1965h if installed
SeeAlso: AH=80h,AX=8006h
Index:	uninstall;FAST!

Format of FAST! request packet:
Offset	Size	Description	(Table 0196)
 00h	DWORD	-> 19-byte signature string (see #0191)
--------c-1381--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = 81h
	SI = 4358h
	???
Return: ???
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call (PC-Cache v5.1 corresponds
	  to PC-Kwik v3.20 and PC-Cache v5.5 to PC-Kwik v3.27)
	returns immediately in PC-Cache v5.x
Index:	PC-Cache|Qualitas Qcache
--------c-1382--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = 82h
	SI = 4358h
	???
Return: AL = ???
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call
SeeAlso: AH=84h
Index:	PC-Cache|Qualitas Qcache
--------c-1383--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = 83h
	SI = 4358h
	AL = ???
	ES:BX -> ???
	???
Return: ???
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call
SeeAlso: AH=85h
Index:	PC-Cache|Qualitas Qcache
--------c-1384--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = 84h
	SI = 4358h
	AL = ???
	???
Return: AL = ???
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call
SeeAlso: AH=82h
Index:	PC-Cache|Qualitas Qcache
--------c-1385--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = 85h
	SI = 4358h
	AL = ???
	DL = ???
	???
Return: ???
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call (PC-Cache v5.1 corresponds
	  to PC-Kwik v3.20)
SeeAlso: AH=83h
Index:	PC-Cache|Qualitas Qcache
--------c-1386--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
	AH = 86h
	SI = 4358h
	???
Return: ???
Note:	Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
	  thus supports this call
Index:	Qualitas Qcache
--------c-1387--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
	AH = 87h
	SI = 4358h
	???
Return: AH = status??? (00h)
	CX = ???
	DX = ??? (0000h)
Note:	Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
	  thus supports this call
Index:	Qualitas Qcache
--------c-1388--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
	AH = 88h
	SI = 4358h
	???
Return: AH = status??? (00h)
	CX = ???
	DX = ??? (0000h)
Note:	Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
	  thus supports this call
Index:	Qualitas Qcache
--------c-1389--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 89h
	SI = 4358h
	???
Return: ???
--------c-138A--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 8Ah
	SI = 4358h
	???
Return: ???
--------c-138EED-----------------------------
INT 13 - HyperDisk v4.01+ - ???
	AX = 8EEDh
	???
Return: ???
Program: HyperDisk is a shareware disk cache by HyperWare (Roger Cross)
SeeAlso: AX=8EEEh,AX=8EEFh,AH=EEh,INT 2F/AH=DFh
--------c-138EEE-----------------------------
INT 13 - HyperDisk v4.01+ - ???
	AX = 8EEEh
Return: CF set
	AX = CS of HyperDisk resident code
	???
Note:	identical to AX=8EEFh in HYPERDKX v4.21-4.30
SeeAlso: AX=8EEDh,AX=8EEFh,AH=EEh
--------c-138EEF-----------------------------
INT 13 - HyperDisk v4.01+ - ???
	AX = 8EEFh
Return: CF set
	AX = CS of HyperDisk resident code
	???
Note:	identical to AX=8EEEh in HYPERDKX v4.21-4.30
SeeAlso: AX=8EEDh,AX=8EEEh,AH=EEh
--------c-1392--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 92h
	SI = 4358h
	???
Return: AH = status??? (00h)
	DL = ???
SeeAlso: AH=93h
--------c-1393--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 93h
	SI = 4358h
	???
Return: AH = status??? (00h)
	AL = ???
SeeAlso: AH=92h
--------c-1394--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 94h
	SI = 4358h
	???
Return: ???
--------c-1395--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 95h
	SI = 4358h
	???
Return: AH = status??? (00h)
	DX = ???
--------c-1396--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 96h
	SI = 4358h
	AL = ??? (01h)
	BX = ??? (0790h)
	DL = ???
Return: AH = status??? (00h)
	DX = ???
--------c-1397--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 97h
	SI = 4358h
	???
Return: ???
--------c-1398--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 98h
	SI = 4358h
	???
Return: ???
--------c-1399--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 99h
	SI = 4358h
	???
Return: ???
--------c-139A--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 9Ah
	SI = 4358h
	???
Return: ???
--------c-139B--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 9Bh
	SI = 4358h
	???
Return: ???
--------c-139C--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 9Ch
	SI = 4358h
	???
Return: ???
Note:	functions 9Ch and 9Dh are the only ones which are fully reentrant; all
	  other PC-Kwik API calls (INT 13/81h-B0h) return AX=0200h and CF clear
	  if a previous call is still in progress
--------c-139D--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = 9Dh
	SI = 4358h
	???
Return: ???
--------c-13A0--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - GET RESIDENT CODE SEGMENT
	AH = A0h
	SI = 4358h
Return: AX = segment of resident code
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call (note that PC-Cache v5.5
	  corresponds to PC-Kwik v3.27)
SeeAlso: INT 16/AX=FFA5h/CX=1111h
Index:	PC-Cache|Qualitas Qcache
--------c-13A1--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - FLUSH CACHE
	AH = A1h
	SI = 4358h
Return: CF clear
	AH = 00h (v5.10)
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
	  corresponds to PC-Kwik v3.20)
SeeAlso: INT 16/AX=FFA5h/CX=FFFFh
Index:	PC-Cache|Qualitas Qcache
--------c-13A2--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = A2h
	SI = 4358h
	???
Return: ???
Note:	PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
	  corresponds to PC-Kwik v3.20)
Index:	PC-Cache|Qualitas Qcache
--------c-13A3--SI4358-----------------------
INT 13 U - Super PC-Kwik v5.10+ - DISABLE CACHE
	AH = A3h
	SI = 4358h
Return: CF clear
SeeAlso: AH=A4h
--------c-13A4--SI4358-----------------------
INT 13 U - Super PC-Kwik v5.10+ - ENABLE CACHE
	AH = A4h
	SI = 4358h
Return: CF clear
SeeAlso: AH=A3h
--------c-13A5--SI4358-----------------------
INT 13 CU - Super PC-Kwik v5.10+ - PROGRAM TERMINATION NOTIFICATION
	AH = A5h
	SI = 4358h
Return: AX = ???
	SI = ???
Notes:	called and used internally by Super PC-Kwik when a program terminates
	  via INT 21/AH=00h, INT 21/AH=31h, or INT 21/AH=4Ch
	this call is not supported by Qualitas Qcache 4.00
Index:	PC-Cache
SeeAlso: AH=A6h,AH=A9h,INT 21/AH=00h,INT 21/AH=31h,INT 21/AH=4Ch
--------c-13A6--SI4358-----------------------
INT 13 CU - Super PC-Kwik v5.10+ - PROGRAM LOAD NOTIFICATION
	AH = A6h
	SI = 4358h
	DS:DX -> ASCIZ program name
	ES:BX -> EXEC data block (see #0803 at INT 21/AH=4Bh)
Return: ???
Note:	called and used internally by Super PC-Kwik when a program is loaded
	  with INT 21/AX=4B00h
SeeAlso: AH=A5h,AH=A9h,INT 21/AH=4Bh
--------c-13A7--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - ???
	AH = A7h
	SI = 4358h
Return: ???
Note:	called and used internally by Super PC-Kwik on some INT 21 calls
SeeAlso: AH=A5h,AH=A6h,AH=A8h
--------v-13A759-----------------------------
INT 13 U - Novell DOS 7 - SDRes v27.03 - ???
	AX = A759h
Return: AX = 59A7h if installed
	    DX:BX -> ??? data
Program: SDRes is the resident portion of the Search&Destroy antiviral by
	  Fifth Generation Systems, as bundled with Novell DOS 7
SeeAlso: INT 21/AH=0Eh/DL=ADh
--------c-13A8--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - ???
	AH = A8h
	SI = 4358h
Return: ???
Note:	called and used internally by Super PC-Kwik on some INT 21 calls
SeeAlso: AH=A5h,AH=A6h,AH=A7h
--------c-13A9--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - EXITCODE RETRIEVAL NOTIFICATION
	AH = A9h
	SI = 4358h
Return: ???
Note:	called and used internally by Super PC-Kwik when an application issues
	  INT 21/AH=4Dh
SeeAlso: AH=A5h,AH=A6h,INT 21/AH=4Dh
--------c-13AA--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
	AH = AAh
	SI = 4358h
	???
Return: ???
Note:	Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
	  this call
--------c-13AB--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
	AH = ABh
	SI = 4358h
	???
Return: ???
Note:	Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
	  this call
--------c-13AC--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
	AH = ACh
	SI = 4358h
	???
Return: ???
Note:	Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
	  this call
--------d-13AD-------------------------------
INT 13 - Priam HARD DISK CONTROLLER???
	AH = ADh
	???
Return: ???
Note:	this call is made from Priam's EFMT.EXE (low-level formatter), probably
	  to check the ROM type on the controller for their hard disk kits
SeeAlso: AH=70h
--------c-13AD--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
	AH = ADh
	SI = 4358h
	???
Return: ???
Note:	Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
	  this call
--------c-13AE--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
	AH = AEh
	SI = 4358h
	???
Return: ???
--------c-13B0--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
	AH = B0h
	SI = 4358h
	???
Return: ???
Note:	PC Tools PC-Cache 5.x is an OEM version of Super PC-Kwik, and thus
	  supports this call; Qualitas Qcache does not support it
Index:	PC-Cache
--------v-13EC00-----------------------------
INT 13 - VIRUS - "Tiso" - INSTALLATION CHECK
	AX = EC00h
Return: CF clear if installed
SeeAlso: AH=F2h,INT 12/AX=4350h/BX=4920h
--------d-13EE-------------------------------
INT 13 - SWBIOS - SET 1024-CYLINDER FLAG
	AH = EEh
	DL = drive number (80h, 81h)
Return: CF clear
	   AH = 00h
Program: SWBIOS is a TSR by Ontrack Computer Systems
Desc:	the following INT 13 call will add 1024 to the specified cylinder
	  number to get the actual cylinder number desired
Notes:	the flag is cleared by all INT 13 calls except AH=EEh and AH=EFh
	Disk Manager also supports these calls
	this function is also supported by HyperDisk v4.01+ and PC-Cache v5.5+,
	  in order to allow caching of drives using SWBIOS to access more than
	  1024 cylinders
	for software which supports that call, this function is equivalent to
	  calling AH=EFh with CX=0400h
SeeAlso: AH=F9h,AH=FEh,INT 16/AX=FFA5h/CX=1111h,INT 2F/AH=DFh
Index:	PC-Cache;huge disks|Disk Manager
--------c-13EF-------------------------------
INT 13 - Ontrack Drive Rocket - SET CYLINDER OFFSET
	AH = EFh
	CX = cylinder offset for next INT 13 call
	DL = drive number (80h, 81h)
Return: CF clear
	    AH = 00h
Program: Drive Rocket is a drive accelerator by Ontrack Computer Systems for
	  IDE drives supporting the read multiple and write multiple commands
Desc:	the following INT 13 call will add the number given by this call to
	  the specified cylinder to get the actual cylinder number, then reset
	  the offset to zero
Note:	this function is also supported by the NOW! disk cache, and presumably
	  newer versions of SWBIOS and Disk Manager
	for software which supports this call, AH=EEh is equivalent to calling
	  this function with CX=0400h
	the cylinder offset is reset to 0 by all INT 13 called except AH=EEh
	  and AH=EFh
SeeAlso: AX=7B00h
--------V-13F2-------------------------------
INT 13 - VIRUS - "Neuroquila" - INSTALLATION CHECK
	AH = F2h
Return: CF ??? if installed
SeeAlso: AX=EC00h,INT 12/AX=4350h/BX=4920h,INT 21/AX=0B56h
--------d-13F9-------------------------------
INT 13 - SWBIOS - INSTALLATION CHECK
	AH = F9h
	DL = drive number (80h,81h)
Return: CF clear
	    DX = configuration word
		bit 15 set if other SWBIOS extensions available
	CF set on error
Program: SWBIOS is a TSR by Ontrack Computer Systems
Note:	Disk Manager also supports these calls
SeeAlso: AH=EEh
Index:	Disk Manager
--------v-13FA--DX5945-----------------------
INT 13 - PC Tools v8+ VSAFE, VWATCH - API
	AH = FAh
	DX = 5945h
	AL = function (00h-07h)
Return: varies by function
	if not installed:
	    CF set
		AH = 01h
Note:	this API is identical to the ones on INT 16/AH=FAh and INT 21/AH=FAh,
	  so it is listed in its entirety under INT 16/AX=FA00h and following
SeeAlso: INT 16/AX=FA00h
--------d-13FE-------------------------------
INT 13 - SWBIOS - GET EXTENDED CYLINDER COUNT
	AH = FEh
	DL = drive number (80h, 81h)
Return: CF clear
	DX = number of cylinders beyond 1024 on drive
Program: SWBIOS is a TSR by Ontrack Computer Systems
Notes:	standard INT 13/AH=08h will return a cylinder count truncated to 1024
	BIOS without this extension would return count modulo 1024
	Disk Manager also supports these calls
SeeAlso: AH=EEh
--------U-13FFFFBHAA-------------------------
INT 13 - UNIQUE UX Turbo Utility - SET TURBO MODE
	AX = FFFFh
	BH = AAh
	BL = subfunction
	    00h installation check
		Return: AX = 1234h if installed
	    01h turn on Turbo mode
	    02h turn off Turbo mode
	    03h set Turbo mode according to hardware switch
	    04h set disk access to Turbo mode
	    05h set disk access to Normal mode
SeeAlso: INT 15/AH=DFh
Index:	installation check;UNIQUE UX Turbo Utility
--------S-14---------------------------------
INT 14 - SERIAL - Digiboard DigiCHANNEL PC/X* Extender INT 14 (XAPCM232.SYS)
Note:	the installation check for this driver is to determine whether the
	  "~DOSXAM~" character device exists
Index:	installation check;Digiboard DigiCHANNEL
--------S-1400-------------------------------
INT 14 - SERIAL - INITIALIZE PORT
	AH = 00h
	AL = port parameters (see #0197)
	DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #0201)
	    FFh if error on Digiboard XAPCM232.SYS
	AL = modem status (see #0202)
Notes:	default handler is at F000h:E739h in IBM PC and 100% compatible BIOSes
	since the PCjr supports a maximum of 4800 bps, attempting to set 9600
	  bps will result in 4800 bps
	various network and serial-port drivers support the standard BIOS
	  functions with interrupt-driven I/O instead of the BIOS's polled I/O
	the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=04h"SERIAL",AH=04h"MultiDOS",AH=05h"SERIAL",AH=57h
SeeAlso: AX=8000h"ARTICOM",AH=81h"COMM-DRV",AH=82h"COURIERS",AH=8Ch

Bitfields for serial port parameters:
Bit(s)	Description	(Table 0197)
 7-5	data rate (110,150,300,600,1200,2400,4800,9600 bps)
 4-3	parity (00 or 10 = none, 01 = odd, 11 = even)
 2	stop bits (set = 2, clear = 1)
 1-0	data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
SeeAlso: #0199,#0204,#0205,#0206
--------S-1400-------------------------------
INT 14 - FOSSIL (Fido/Opus/Seadog Standard Interface Level) - INITIALIZE
	AH = 00h
	AL = initializing parameters
	    7 - 6 - 5	   4 - 3     2	  1 - 0
	    -BAUD RATE-	   PARITY   STOP   WORD
				    BITS  LENGTH
	    000 19200 bd   00 none  0: 1  00: 5
	    001 38400 bd   01 odd   1: 2  01: 6
	    010	  300 bd   11 even	  10: 7
	    011	  600 bd		  11: 8
	    100	 1200 bd
	    101	 2400 bd
	    110	 4800 bd
	    111	 9600 bd (4800 on PCjr)
	DX = port number (0-3 or FFh if only performing non-I/O setup)
Return: AH = RS-232 status code bits (see #0198)
	AL = modem status bits
	    bit 3: always 1
	    bit 7: DCD - carrier detect
SeeAlso: #0197,AH=05h"FOSSIL",AH=81h"COMM-DRV",AH=82h"COURIERS"

Bitfields for FOSSIL RS-232 status:
Bit(s)	Description	(Table 0198)
 0	RDA - input data is available in buffer
 1	OVRN - data has been lost
 5	THRE - room is available in output buffer
 6	TSRE - output buffer empty
--------S-1400-------------------------------
INT 14 - MBBIOS - INITIALIZE PORT
	AH = 00h
	AL = port parameters (see #0199)
	DX = port number
Return: AH = line status (see #0201)
	AL = modem status (see #0202)
Note:	MBBIOS was written by H. Roy Engehausen
SeeAlso: AH=04h"MBBIOS",AH=05h"MBBIOS",AH=09h"MBBIOS"

Bitfields for MBBIOS port parameters:
Bit(s)	Description	(Table 0199)
 7-5	data rate
	(normally 110,150,300,600,1200,2400,4800,9600 bps;
	9600,14400,19200,28800,38400,57600,115200,330400 bps
	if the high-speed option is set)
 4-3	parity (00 or 10 = none, 01 = odd, 11 = even)
 2	stop bits (set = 2, clear = 1)
 1-0	data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
SeeAlso: #0197
--------N-1400--DXFFFF-----------------------
INT 14 - Connection Manager - MODIFY DEFAULT CONNECTION PARAMETERS
	AH = 00h
	DX = FFFFh
	ES:DI -> vector string specifying new parameters
Return: AH = return code (00h,03h) (see #0200)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
Note:	if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
	  function, but redirects the port over the network; if DX is any other
	  value, the call is chained
SeeAlso: AH=04h/DX=FFFFh,AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh

(Table 0200)
Values for Connection Manager return code:
 00h	successful
 01h	no such connection
 02h	invalid connection ID
 03h	invalid subvector found
 04h	communication error (check BH)
 06h	insufficient resources, retry later
 FFh	no data available
--------S-1401-------------------------------
INT 14 - SERIAL - WRITE CHARACTER TO PORT
	AH = 01h
	AL = character to write
	DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH bit 7 clear if successful
	AH bit 7 set on error
	AH bits 6-0 = port status (see #0201)
Notes:	various network and serial-port drivers support the standard BIOS
	  functions with interrupt-driven I/O instead of the BIOS's polled I/O
	the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=02h,AH=0Bh"FOSSIL",AX=8000h"ARTICOM",AH=89h
--------N-1401--DXFFFF-----------------------
INT 14 - Connection Manager - SEND CHARACTER
	AH = 01h
	DX = FFFFh
	BH = character to send
Return: AH = return code (00h-02h,06h) (see #0200)
Notes:	if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
	  function, but redirects the port over the network; if DX is any other
	  value, the call is chained
	this function is provided primarily for compatibility; AH=06h/DX=FFFFh
	  is the preferred function because it provides better performance
SeeAlso: AH=02h/DX=FFFFh,AH=06h/DX=FFFFh,AH=09h/DX=FFFFh
--------S-1402-------------------------------
INT 14 - SERIAL - READ CHARACTER FROM PORT
	AH = 02h
	AL = 00h (ArtiCom)
	DX = port number (00h-03h (04h-43h for Digiboard XAPCM232.SYS))
Return: AH = line status (see #0201)
	AL = received character if AH bit 7 clear
Notes:	will timeout if DSR is not asserted, even if function 03h returns
	  data ready
	various network and serial-port drivers support the standard BIOS
	  functions with interrupt-driven I/O instead of the BIOS's polled I/O
	the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=01h,AH=02h"FOSSIL",AH=84h,AH=FCh
--------S-1402-------------------------------
INT 14 - FOSSIL - RECEIVE CHARACTER WITH WAIT
	AH = 02h
	DX = port number (0-3)
Return: AL = character received
	AH = 00h
SeeAlso: AH=01h,AH=02h"SERIAL"
--------N-1402--DXFFFF-----------------------
INT 14 - Connection Manager - RECEIVE CHARACTER
	AH = 02h
	DX = FFFFh
	BH = character to send
Return: AH = return code (00h-02h,04h,FFh) (see #0200)
	BH = line status (see #0201)
	AL = received character (if any)
Notes:	if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
	  function, but redirects the port over the network; if DX is any other
	  value, the call is chained
	this function is provided primarily for compatibility; AH=07h/DX=FFFFh
	  is the preferred function because it provides better performance
SeeAlso: AH=02h/DX=FFFFh,AH=03h/DX=FFFFh,AH=06h/DX=FFFFh
--------S-1403-------------------------------
INT 14 - SERIAL - GET PORT STATUS
	AH = 03h
	AL = 00h (ArtiCom)
	DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #0201)
	AL = modem status (see #0202)
	AX = 9E00h if disconnected (ArtiCom)
Note:	the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=00h,AH=07h"MultiDOS",AX=8000h"ARTICOM",AH=81h"COURIERS",AX=FD02h

Bitfields for serial line status:
Bit(s)	Description	(Table 0201)
 7	timeout
 6	transmit shift register empty
 5	transmit holding register empty
 4	break detected
 3	framing error
 2	parity error
 1	overrun error
 0	receive data ready
Note:	for COMM-DRV, if bit 7 is set, an error occurred, and may be retrieved
	  through a separate call (see AX=8000h"COMM-DRV")

Bitfields for modem status:
Bit(s)	Description	(Table 0202)
 7	carrier detect
 6	ring indicator
 5	data set ready
 4	clear to send
 3	delta carrier detect
 2	trailing edge of ring indicator
 1	delta data set ready
 0	delta clear to send
--------N-1403--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN COMMUNICATION PORT STATUS
	AH = 03h
	DX = FFFFh
	AL = connection ID
Return: AH = return code (00h-02h) (see #0200)
	BH = line status (see #0203)
	BL = modem status (see #0202) (only bits 4,5,7; all others zero)
Notes:	if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
	  function, but redirects the port over the network; if DX is any other
	  value, the call is chained
SeeAlso: AH=00h/DX=FFFFh,AH=04h/DX=FFFFh,AH=0Ah/DX=FFFFh

Bitfields for Connection Manager line status:
Bit(s)	Description	(Table 0203)
 7	CTS changed
 6	current CTS state
 5	timeout
 4	break
 3	framing error
 2	parity error
 1	overrun
 0	current carrier state (0 active, 1 no carrier)
--------S-1404-------------------------------
INT 14 - SERIAL - EXTENDED INITIALIZE (CONVERTIBLE,PS)
	AH = 04h
	AL = break status
	    00h if break
	    01h if no break
	BH = parity (see #0204)
	BL = number of stop bits
	    00h one stop bit
	    01h two stop bits (1.5 if 5 bit word length)
	CH = word length (see #0205)
	CL = bps rate (see #0206)
	DX = port number
Return: AX = port status code (see #0201,#0202)
SeeAlso: AH=00h,AH=1Eh,AX=8000h"ARTICOM"

(Table 0204)
Values for serial port parity:
 00h	no parity
 01h	odd parity
 02h	even parity
 03h	stick parity odd
 04h	stick parity even
SeeAlso: #0197,#0205,#0206,#0207

(Table 0205)
Values for serial port word length:
 00h	5 bits
 01h	6 bits
 02h	7 bits
 03h	8 bits
SeeAlso: #0197,#0204,#0206,#0242

(Table 0206)
Values for serial port bps rate:
 00h	110 (19200 if ComShare installed)
 01h	150 (38400 if ComShare installed)
 02h	300
 03h	600 (14400 if ComShare installed)
 04h	1200
 05h	2400
 06h	4800 (28800 if ComShare installed)
 07h	9600
 08h	19200
---ComShare---
 09h	38400
 0Ah	57600
 0Bh	115200
SeeAlso: #0197,#0204,#0206,#0243,#0250,AH=36h,#0259,#0464,#1616
--------S-1404-------------------------------
INT 14 - FOSSIL - INITIALIZE DRIVER
	AH = 04h
	DX = port number
	optionally BX=4F50h
		   ES:CX -> byte to be set upon ^C
Return: AX = 1954h (if successful)
	BL = maximum function number supported (excluding 7Eh and above)
	BH = revision of FOSSIL specification supported
	DTR is raised
Note:	the word at offset 6 in the interrupt handler contains 1954h, and the
	  following byte contains the maximum function number supported; this
	  can serve as an installation check
SeeAlso: AH=05h"FOSSIL",AH=1Ch,INT 11/AH=BCh
Index:	installation check;FOSSIL
--------S-1404-------------------------------
INT 14 - MultiDOS Plus IODRV - INITIALIZE PORT
	AH = 04h
Return: port initialized; if Hayes-compatible modem, a connection has been
	  established
Note:	the port number is stored at offset BEh in the Task Control Block
	  (see #0345 at INT 15/AH=13h"MultiDOS")
SeeAlso: AH=00h,AH=05h"MultiDOS",AH=20h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1404-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CHANGE BAUD RATE
	AH = 04h
	AL = initializing parameters (see #0207)
	BX = baud rate
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    FFh error
SeeAlso: AH=05h"Digiboard"

Bitfields for Digiboard initializing parameters:
Bit(s)	Description	(Table 0207)
 7-5	unused
 4-3	parity (00 none, 01 odd, 11 even)
 2	stop bits (0 = one, 1 = two)
 1-0	data bits (00 = five, 01 = six, 10 = seven, 11 = eight)
SeeAlso: #0204,#0205
--------S-1404-------------------------------
INT 14 - MBBIOS - INSTALLATION CHECK
	AH = 04h
	DX = port number
Return: AX = AA55h if installed on specified port
SeeAlso: AH=00h"MBBIOS",AH=09h"MBBIOS"
--------N-1404--DXFFFF-----------------------
INT 14 - Connection Manager - OPEN COMMUNICATION
	AH = 04h
	DX = FFFFh
	ES:DI -> Connection Request protocol vector (see #0208)
Return: AH = return code
	    00h successful
		AL = connection ID
		BH = connection type
		    00h direct connection or no dialing
		    01h Connection Server dialed phone
	    01h no response from Connection Server
	    03h invalid request
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
Desc:	initiate a connection to the Connection Server listed in the current
	  Client parameter set
Notes:	if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
	  function, but redirects the port over the network; if DX is any other
	  value, the call is chained
	all subvectors of the Connection Request vector are optional; if
	  missing, default values are provided by the default connection
	  parameter set
SeeAlso: AH=00h/DX=FFFFh,AH=05h/DX=FFFFh,AH=06h/DX=FFFFh,AH=07h/DX=FFFFh
SeeAlso: AH=0Ah/DX=FFFFh,AH=0Ch/DX=FFFFh

Format of Connection Manager protocol command vector:
Offset	Size	Description	(Table 0208)
 00h	WORD	(big-endian) total length of command (including this word)
 02h	WORD	(big-endian) command code
		EF01h Connection Request
		EF06h Modify Connection Parameters
 04h  N BYTEs	list of subvectors (see #0210)
		allowable subvector types are 01h-04h,17h,18h for command code
		  EF01h; 03h,04h for command code EF06h (see #0209)

(Table 0209)
Values for Connection Manager subvector type code:
 01h	Connection ID
 02h	Destination ID
 03h	Asynchronous line parameters
 04h	Data transfer parameters
 09h	Line speed
 0Ah	Serial coding
 0Bh	Packet size
 0Ch	Timers
 0Dh	Special characters
 0Eh	Target ID
 0Fh	Telephone number
 10h	ASCII destination ID
 11h	Parity
 12h	Bits per character
 13h	Number of stop bits
 14h	Packet timer
 15h	Intercharacter timer
 17h	Flags
 18h	Parameter ranges
 19h	Flow control

Format of Connection Manager subvector:
Offset	Size	Description	(Table 0210)
 00h	BYTE	length of subvector
 01h	BYTE	type code (see #0209)
 02h N-2 BYTEs	data, which may include subvectors
SeeAlso: #0211,#0212,#0213,#0214,#0215,#0216,#0217,#0218,#0219,#0220,#0221
SeeAlso: #0222,#0223,#0225,#0226,#0227,#0228,#0229,#0230

Format of Connection ID subvector:
Offset	Size	Description	(Table 0211)
 00h	BYTE	03h (length)
 01h	BYTE	01h (subvector "Connection ID")
 02h	BYTE	connection ID

Format of Destination ID subvector:
Offset	Size	Description	(Table 0212)
 00h	BYTE	length
 01h	BYTE	02h (subvector "Destination ID")
 02h  N BYTEs	subvector(s) of type 0Eh, 0Fh, or 10h

Format of Asynchronous line parameters subvector:
Offset	Size	Description	(Table 0213)
 00h	BYTE	length
 01h	BYTE	03h (subvector "Asynchronous line parameters")
 02h  N BYTEs	subvector(s) of type 09h, 0Ah, or 19h

Format of Data transfer parameters subvector:
Offset	Size	Description	(Table 0214)
 00h	BYTE	length
 01h	BYTE	04h (subvector "Data transfer parameters")
 02h  N BYTEs	subvector(s) of type 0Bh, 0Ch, or 0Dh

Format of Line speed subvector:
Offset	Size	Description	(Table 0215)
 00h	BYTE	04h (length)
 01h	BYTE	09h (subvector "Line speed")
 02h	WORD	bit map, highest set bit selects speed
		bit 0: 2400
		bits 1-7: 1800, 1200, 600, 300, 115200, 150, 110 bps
		bits 8-15: 57600, 38400, 19200, 14400, 9600, 7200, 4800, 3600

Format of Serial coding subvector:
Offset	Size	Description	(Table 0216)
 00h	BYTE	length
 01h	BYTE	0Ah (subvector "Serial coding")
 02h  N BYTEs	subvector(s) of type 11h, 12h, or 13h

Format of Packet size subvector:
Offset	Size	Description	(Table 0217)
 00h	BYTE	04h (length)
 01h	BYTE	0Bh (subvector "Packet size")
 02h	WORD	(big-endian) packet size, 1 to 1024

Format of Timers subvector:
Offset	Size	Description	(Table 0218)
 00h	BYTE	length
 01h	BYTE	0Ch (subvector "Timers")
 02h  8 BYTEs	subvector of type 14h or 15h

Format of Special characters subvector:
Offset	Size	Description	(Table 0219)
 00h	BYTE	length
 01h	BYTE	0Dh (subvector "Special characters")
 02h  N BYTEs	list of ASCII characters to be used as EOM or EOB

Format of Target ID:
Offset	Size	Description	(Table 0220)
 00h	BYTE	length
 01h	BYTE	0Eh (subvector "Target ID")
 02h  N BYTEs	target ID, 1-16 bytes

Format of Telephone number subvector:
Offset	Size	Description	(Table 0221)
 00h	BYTE	length
 01h	BYTE	0Fh (subvector "Telephone number")
 02h  N BYTEs	telephone number

Format of ASCII destination ID subvector:
Offset	Size	Description	(Table 0222)
 00h	BYTE	length
 01h	BYTE	10h (subvector "ASCII destination ID")
 02h  N BYTEs	destination ID

Format of Parity subvector:
Offset	Size	Description	(Table 0223)
 00h	BYTE	03h (length)
 01h	BYTE	11h (subvector "Parity")
 02h	BYTE	parity type (see #0224)

Bitfields for Connection Manager parity type:
Bit(s)	Description	(Table 0224)
 7	odd
 6	even
 5	mark
 4	space
 3	none

Format of Bits per character subvector:
Offset	Size	Description	(Table 0225)
 00h	BYTE	03h (length)
 01h	BYTE	12h (subvector "Bits per character")
 02h	BYTE	bits per character
		bit 7: seven
		bit 6: eight

Format of Number of stop bits subvector:
Offset	Size	Description	(Table 0226)
 00h	BYTE	03h (length)
 01h	BYTE	13h (subvector "Number of stop bits")
 02h	BYTE	stop bits
		bit 7: one
		bit 6: 1.5
		bit 5: two

Format of Packet timer and Intercharacter timer subvectors:
Offset	Size	Description	(Table 0227)
 00h	BYTE	04h (length)
 01h	BYTE	subvector type
		14h Packet timer
		15h Intercharacter timer
 02h	WORD	(big-endian) unit of value representing 20ms

Format of Flags subvector:
Offset	Size	Description	(Table 0228)
 00h	BYTE	03h (length)
 01h	BYTE	17h (subvector "Flags")
 02h	BYTE	flags
		bit 7: queueing requested

Format of Parameter ranges subvector:
Offset	Size	Description	(Table 0229)
 00h	BYTE	length
 01h	BYTE	18h (subvector "Parameter ranges")
 02h  N BYTEs	subvector(s) of type 09h, 11h, 12h, or 13h

Format of Flow control subvector:
Offset	Size	Description	(Table 0230)
 00h	BYTE	length (02h-04h)
 01h	BYTE	19h (subvector "Flow control")
 02h	BYTE	XOFF character
 03h	BYTE	XON character
Note:	if length is 02h, flow control is disabled; if length is 03h, any
	  character will be accepted as XON after an XOFF
--------S-140400-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - INSTALLATION CHECK
	AX = 0400h
Return: AX = 0FF0h
SeeAlso: AX=0401h,AX=0408h
--------S-140401-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - INITIALIZE MODE
	AX = 0401h
	CX = mode
SeeAlso: AX=0400h,AX=0402h
--------S-140402-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - EXTENDED INITIALIZE
	AX = 0402h
	CL = parameters
SeeAlso: AX=0400h,AX=0401h
--------S-140403-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - SET TIMEOUT
	AX = 0403h
	CX = timeout
SeeAlso: AX=0400h
--------S-140404-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - CLEAR THE RECEIVE BUFFER
	AX = 0404h
SeeAlso: AX=0400h,AX=0405h,AX=0406h
--------S-140405-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - GET RECEIVE BUFFER COUNT
	AX = 0405h
Return: AX = number of characters in buffer
SeeAlso: AX=0400h,AX=0404h,AX=0407h
--------S-140406-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - CLEAR THE TRANSMIT BUFFER
	AX = 0406h
SeeAlso: AX=0400h,AX=0404h,AX=0407h
--------S-140407-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - GET TRANSMIT BUFFER COUNT
	AX = 0407h
Return: AX = number of characters in the buffer
SeeAlso: AX=0400h,AX=0405h,AX=0406h
--------S-140408-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - UNINSTALL
	AX = 0408h
SeeAlso: AX=0400h
--------S-1405-------------------------------
INT 14 - SERIAL - EXTENDED COMMUNICATION PORT CONTROL (CONVERTIBLE,PS)
	AH = 05h
	AL = function
	    00h read modem control register
	      Return: BL = modem control register (see #0231)
		      AH = status
	    01h write modem control register
	      BL = modem control register (see #0231)
	      Return: AX = status
	DX = port number
Note:	also supported by ArtiCom
SeeAlso: AH=00h,AH=1Fh,AX=8000h"ARTICOM",AH=FBh

Bitfields for modem control register:
Bit(s)	Description	(Table 0231)
 0	data terminal ready
 1	request to send
 2	OUT1
 3	OUT2
 4	LOOP
 5-7	reserved
--------S-1405-------------------------------
INT 14 - FOSSIL - DEINITIALIZE DRIVER
	AH = 05h
	DX = port number
Return: none
	DTR is not affected
SeeAlso: AH=00h,AH=04h"FOSSIL",AH=1Dh,AH=8Dh
--------S-1405-------------------------------
INT 14 - MultiDOS Plus IODRV - READ CHARACTER FROM PORT
	AH = 05h
	AL = timeout in seconds (00h = never)
Return: AL = status
	    00h successful
		AH = character read
	    01h read error
	    02h timed out
	    other modem status (CTS, DSR) changed
Note:	the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=02h,AH=04h"MultiDOS",AH=06h"MultiDOS",AH=22h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"
--------S-1405-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CHANGE PROTOCOL
	AH = 05h
	AL = protocol (see #0232)
	BH = new XOFF character (00h = current)
	BL = new XON character (00h = current)
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    FFh error
SeeAlso: AH=04h"Digiboard"

Bitfields for Digiboard protocol:
Bit(s)	Description	(Table 0232)
 7-4	unused
 3	RTS/CTS
 2	DSR
 1,0	XON/XOFF
--------S-1405-------------------------------
INT 14 - MBBIOS - DROP DTR AND RTS
	AH = 05h
	DX = port number
Return: none
SeeAlso: AH=00h"MBBIOS",AH=06h"MBBIOS",AH=06h"FOSSIL"
--------S-1405-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - CHANGE PORT PROTOCOL
	AH = 05h
	AL = new port protocol (see #0233)
	BH = new XOFF character
	BL = new XON character
	DX = port number
Return: AH = FFh if invalid protocol
SeeAlso: AH=00h,AH=04h"SERIAL",AH=06h"PC-MOS"

Bitfields for PC-MOS/386 serial port protocol:
Bit(s)	Description	(Table 0233)
 7	set to enable/disable CD monitoring, clear to set protocol
---bit 7 set---
 4	CD monitoring enabled
 5	automatic restart enabled
---bit 7 clear---
 0	receive XON/XOFF
 1	transmit XON/XOFF
 2	DTR/DSR
 3	RTS/CTS
--------N-1405--DXFFFF-----------------------
INT 14 - Connection Manager - CLOSE COMMUNICATION
	AH = 05h
	DX = FFFFh
	AL = connection ID
Return: AH = return code
		 00h successful
	    01h no such connection
	    02h invalid connection ID
		AL = correct connection ID
Desc:	terminate existing connection to allow another one to be established
Note:	if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
	  function, but redirects the port over the network; if DX is any other
	  value, the call is chained
SeeAlso: AH=04h/DX=FFFFh,AH=0Dh/DX=FFFFh
--------S-1406-------------------------------
INT 14 - FOSSIL - RAISE/LOWER DTR
	AH = 06h
	DX = port
	AL = DTR state to be set
	    00h = lower
	    01h = raise
SeeAlso: AH=05h"MBBIOS",AH=1Ah
--------S-1406-------------------------------
INT 14 - MultiDOS Plus IODRV - WRITE CHARACTER TO PORT
	AH = 06h
	AL = character
Return: AL = status
	    00h successful
Notes:	the port number is stored at offset BEh in the Task Control Block
	if output queue is full, the calling task is blocked until the
	  character can be stored
SeeAlso: AH=01h,AH=04h"MultiDOS",AH=05h"MultiDOS",AH=21h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"
--------S-1406-------------------------------
INT 14 - MBBIOS - RAISE DTR AND RTS
	AH = 06h
	DX = port number
Return: none
SeeAlso: AH=05h"MBBIOS",AH=07h"MBBIOS"
--------S-1406-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DRIVER 'ID' FUNCTION
	AH = 06h
	DX = port number
Return: AH bit 7 set
	AL = number of highest function supported by driver
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
SeeAlso: AH=18h"PC-MOS"
--------N-1406-------------------------------
INT 14 - TelAPI - WRITE???
	AH = 06h
	CX = number of characters to write???
	DX = port number
	ES:DI -> buffer containing data???
Return: AX = number of characters actually sent??? (negative on error)
	CX = ???
Note:	under Novell TELAPI.EXE v4.01, this function and AH=07h are implemented
	  with identical code
SeeAlso: AH=07h"TelAPI",AH=E0h"TelAPI"
--------N-1406--DXFFFF-----------------------
INT 14 - Connection Manager - SEND CHARACTER BLOCK
	AH = 06h
	DX = FFFFh
	AL = connection ID
	CX = number of characters to send
	ES:DI -> buffer containing data to be sent
Return: AH = return code (see #0200)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=04h/DX=FFFFh,AH=07h/DX=FFFFh,AH=09h/DX=FFFFh
--------S-1407-------------------------------
INT 14 - FOSSIL - RETURN TIMER TICK PARAMETERS
	AH = 07h
Return: AL = timer tick interrupt number
	AH = ticks per second on interrupt number in AL
	DX = approximate number of milliseconds per tick
SeeAlso: AH=16h
--------S-1407-------------------------------
INT 14 - MultiDOS Plus IODRV - GET PORT STATUS
	AH = 07h
Return: CL = modem status (see #0202)
	CH = character at head of input queue (if any)
	DX = number of characters in input queue
Note:	the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=03h,AH=05h"MultiDOS",AH=08h"MultiDOS",AH=09h"MultiDOS"
SeeAlso: AH=23h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1407-------------------------------
INT 14 - MBBIOS - SEND BREAK
	AH = 07h
	DX = port number
Return: none
SeeAlso: AH=06h"MBBIOS",AH=FAh"EBIOS"
--------S-1407-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - SEND RS-232 BREAK
	AH = 07h
	BX = duration of break in clock ticks
	DX = port number
Return: nothing
--------N-1407-------------------------------
INT 14 - TelAPI - WRITE???
	AH = 07h
	CX = number of characters to write???
	DX = port number
	ES:DI -> buffer containing data???
Return: AX = number of characters actually sent??? (negative on error)
	CX = ???
Note:	under Novell TELAPI.EXE v4.01, this function and AH=06h are implemented
	  with identical code
SeeAlso: AH=06h"TelAPI",AH=E0h"TelAPI"
--------N-1407--DXFFFF-----------------------
INT 14 - Connection Manager - RECEIVE CHARACTER BLOCK
	AH = 07h
	DX = FFFFh
	AL = connection ID
	BL = flag
	    00h wait for data
	    nonzero do not wait if no data avaiable
	CX = size of receive buffer
	ES:DI -> buffer for received characters
Return: AH = return code (00h-02h,04h,FFh) (see #0200)
	BH = line status (see #0203)
	CX = number of characters received
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=01h/DX=FFFFh,AH=04h/DX=FFFFh,AH=06h/DX=FFFFh
--------S-1408-------------------------------
INT 14 - FOSSIL - FLUSH OUTPUT BUFFER WAITING TILL ALL OUTPUT IS DONE
	AH = 08h
	DX = port number
SeeAlso: AH=09h"FOSSIL"
--------S-1408-------------------------------
INT 14 - MultiDOS Plus 4.0 IODRV - GET AND RESET PORT LINE STATUS
	AH = 08h
Return: AL = line status (see #0201)
	AH destroyed
Notes:	the port number is stored at offset BEh in the Task Control Block
	on every line status change, the line status is ORed with the line
	  status accumulator; this function returns the accumulator and clears
	  it
SeeAlso: AH=03h,AH=04h"MultiDOS",AH=07h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1408-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - ALTERNATE STATUS CHECK
	AH = 08h
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = RS232 status bits (see #0201 at AH=03h)
	ZF set if no characters queued
	ZF clear if character available
	    AL = next character
SeeAlso: AH=03h,AH=08h"PC-MOS",AH=09h"Digiboard",AH=14h"Digiboard"
--------S-1408-------------------------------
INT 14 - MBBIOS - NON-DESTRUCTIVE READ
	AH = 08h
	DX = port number
Return: AL = character (if AH bit 0 set)
	AH = status (see #0201)
SeeAlso: AH=0Bh"MBBIOS",AH=0Ch"FOSSIL"
--------S-1408-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - INPUT STATUS CHECK
	AH = 08h
	DX = port number
Return: CF set if carrier loss detected
	ZF set if input buffer empty
	ZF clear if characters available
	    AL = next character dequeued
--------N-1408--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN DEFAULT CONNECTION PARAMETERS
	AH = 08h
	DX = FFFFh
	CX = size of buffer for parameters or 0000h to get length
	ES:DI -> buffer for parameter vector (see #0208)
Return: AH = return code
	    00h successful
		CX = number of bytes required (if CX=0000h on entry)
		CX = number of bytes omitted for lack of space (if CX nonzero)
	    nonzero invalid request
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=00h/DX=FFFFh,AH=0Fh/DX=FFFFh
--------S-1409-------------------------------
INT 14 - FOSSIL - PURGE OUTPUT BUFFER THROWING AWAY ALL PENDING OUTPUT
	AH = 09h
	DX = port number
SeeAlso: AH=08h"FOSSIL",AH=0Ah"FOSSIL",AH=88h
--------S-1409-------------------------------
INT 14 - MultiDOS Plus IODRV - RESET PORT STATUS
	AH = 09h
Return: modem status byte cleared
Note:	the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=04h"MultiDOS",AH=07h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1409-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR BUFFERS
	AH = 09h
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    FFh error
SeeAlso: AH=08h"Digiboard",AH=0Ah"Digiboard",AH=10h"Digiboard"
--------S-1409-------------------------------
INT 14 - MBBIOS - GET/SET OPTIONS
	AH = 09h
	AL = option byte (see #0234)
	DX = port number???
Return: AL = old option byte
SeeAlso: AH=00h"MBBIOS",AH=04h"MBBIOS",AH=10h"FOSSIL"

Bitfields for MBBIOS option byte:
Bit(s)	Description	(Table 0234)
 0	transmit buffering enabled
 2	hardware handshaking enabled
 5	high-speed option enabled (see AH=00h"MBBIOS",#0199)
 other	reserved
--------S-1409-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - RESET I/O BUFFER POINTERS
	AH = 09h
	DX = port number
Return: nothing
SeeAlso: AH=13h"PC-MOS"
--------N-1409--DXFFFF-----------------------
INT 14 - Connection Manager - SEND BREAK
	AH = 09h
	DX = FFFFh
	AL = connection ID
Return: AH = return code (00h-02h) (see #0200 at AH=00h/DX=FFFFh)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=02h/DX=FFFFh,AH=03h/DX=FFFFh
--------S-140A-------------------------------
INT 14 - FOSSIL - PURGE INPUT BUFFER THROWING AWAY ALL PENDING INPUT
	AH = 0Ah
	DX = port number
SeeAlso: AH=09h"FOSSIL",AH=85h
--------S-140A-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - INPUT QUEUE CHECK
	AH = 0Ah
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters available in buffer
Note:	this function is also supported by the PC-MOS/386 v5.01 $serial.sys
SeeAlso: AH=09h"Digiboard",AH=0Dh"Digiboard"
--------S-140A-------------------------------
INT 14 - MBBIOS - WRITE BUFFER
	AH = 0Ah
	CX = count
	ES:DI -> buffer (see #0235)
Return: AX = status (see #0201,#0202)
	CX = unsent character count
	DI updated
Note:	the PACCOM version of MBBIOS does not use CX or ES:DI; instead, ES
	  contains the segment of a buffer containing the packet to be sent,
	  which by default will be freed once the packet has been sent.	 Use
	  AH=0Ch"MBBIOS" to allocate the buffer.
SeeAlso: AH=01h,AH=0Bh"MBBIOS",AH=0Ch"MBBIOS",AH=19h"FOSSIL"

Format of MBBIOS PACCOM buffer:
Offset	Size	Description	(Table 0235)
 00h 504 BYTEs	data area
1F8h	WORD	length of data in data area
1FAh	BYTE	flags/status
		bit 7: don't discard buffer after transmitting data
		bit 6: buffer has been transmitted
1FBh	BYTE	reserved (0) for additional flags/status
1FCh	WORD	user data
1FEh	WORD	MBBIOS-internal pointer to next buffer
--------N-140A--DXFFFF-----------------------
INT 14 - Connection Manager - MODIFY ACTIVE CONNECTION PARAMETERS
	AH = 0Ah
	DX = FFFFh
	ES:DI -> vector string containing new parameters (see #0208)
Return: AH = return code (00h-03h,06h) (see #0200)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
Note:	any subvectors valid for the Change Parameters command replace the
	  existing values in the current set
SeeAlso: AH=00h/DX=FFFFh,AH=0Fh/DX=FFFFh
--------S-140B-------------------------------
INT 14 - FOSSIL - TRANSMIT NO WAIT
	AH = 0Bh
	AL = character
	DX = port number
Return: AX = result
	    0000h character not accepted
	    0001h character accepted
SeeAlso: AH=01h
--------S-140B-------------------------------
INT 14 - MBBIOS - READ BUFFER
	AH = 0Bh
	CX = size of buffer
	ES:DI -> buffer
Return: AH = composite line status (see #0201) formed by ORing all statuses
		  on receive interrupts; bit 0 set if additional characters
		  available
	AL = composite modem status (see #0202) formed by ORing all statuses
	CX = number of characters actually read
	DI updated
Note:	the PACCOM version of MBBIOS does not use CX or ES:DI on call,
	  instead returning ES set to the segment of the buffer containing a
	  received packet, or 0000h if no packets available; the buffer may
	  be freed with AH=0Ch"MBBIOS"
SeeAlso: AH=02h,AH=08h"MBBIOS",AH=0Ah"MBBIOS",AH=0Ch"MBBIOS",AH=18h"FOSSIL"
--------N-140B--DXFFFF-----------------------
INT 14 - Connection Manager - PREPARE FOR INBOUND CONNECTION
	AH = 0Bh
	DX = FFFFh
	AL = service name
	    00h use parameter file or default
		 01h use specified name
		ES:DI -> 16-byte blank-padded name
	BH = connection notification
	    00h program awaiting connection, don't notify user
	    01h notify user on connecting
	BL = connection type
	    00h connection will use Connection Manager API
Return: AH = return code (00h-02h) (see #0200 at AH=00h/DX=FFFFh)
	AL = connection ID if AH=00h
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=04h/DX=FFFFh,AH=0Ch/DX=FFFFh,AH=10h/DX=FFFFh
--------S-140C-------------------------------
INT 14 - FOSSIL - NON-DESTRUCTIVE READ AHEAD
	AH = 0Ch
	DX = port number
Return: AX = FFFFh character not available
	AX = 00xxh character xx available
SeeAlso: AH=08h"MBBIOS",AH=20h"FOSSIL"
--------S-140C-------------------------------
INT 14 - MBBIOS PACCOM support - BUFFER MANAGEMENT
	AH = 0Ch
	ES = segment of buffer to free, or 0000h to allocate new buffer
Return: ES = segment of allocated buffer (if ES=0000h on entry)
Note:	the PACCOM version of MBBIOS uses only ES as buffer address for
	  AH=0Ah and AH=0Bh
SeeAlso: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"
--------N-140C--DXFFFF-----------------------
INT 14 - Connection Manager - TEST FOR INBOUND CONNECTION REQUEST
	AH = 0Ch
	DX = FFFFh
	AL = connection ID from AH=0Bh/DX=FFFFh
Return: AH = return code (00h-03h) (see also #0200 at AH=00h/DX=FFFFh)
	    03h not prepared for inbound connection
	AL = connection ID (if AH=00h) or correct connection ID (if AH=02h)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=03h/DX=FFFFh,AH=04h/DX=FFFFh,AH=0Bh/DX=FFFFh
--------S-140D-------------------------------
INT 14 - FOSSIL - KEYBOARD READ WITHOUT WAIT
	AH = 0Dh
Return: AX = result
	    FFFFh character not available
	    xxyyh standard IBM-style scan code
SeeAlso: AH=0Eh
--------S-140D-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - GET POINTER TO CH_KEY_RDY FLAG
	AH = 0Dh
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: ES:BX -> CH_KEY_RDY flag (see #0236)
SeeAlso: AH=0Ah"Digiboard"

(Table 0236)
Values for Digiboard CH_KEY_RDY flag:
 00h	receive buffer empty
 FFh	characters available
--------S-140D-------------------------------
INT 14 - MBBIOS PACCOM support - SET TXD
	AH = 0Dh
	AL = new setting (FFh = 1.0)
Desc:	specify the time from RTS to start or packet
SeeAlso: AX=0D00h,AH=0Eh"MBBIOS",AH=0Fh"MBBIOS"
--------N-140D--DXFFFF-----------------------
INT 14 - Connection Manager - TERMINATE CONNECTION CLIENT ACTIVITY
	AH = 0Dh
	DX = FFFFh
Return: AH = return code
	    00h successful
	    nonzero operation not terminated
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
Desc:	end all Connection Client TSR activity to allow it to be removed from
	  memory
SeeAlso: AH=05h/DX=FFFFh,AH=6Fh/BX=FFFFh
--------S-140D00-----------------------------
INT 14 - MBBIOS - GET AVAILABLE BYTES
	AX = 0D00h
Return: AX = bytes in transmit buffer
	CX = bytes in receive buffer
SeeAlso: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"
--------S-140D01-----------------------------
INT 14 - MBBIOS - LOWER ALL MODEM CONTROL SIGNALS
	AX = 0D01h
Note:	this function lowers DTR, RTS, etc.
SeeAlso: AX=0D02h
--------S-140D02-----------------------------
INT 14 - MBBIOS - RAISE ALL MODEM CONTROL SIGNALS
	AX = 0D02h
Note:	this function raises DTR, RTS, etc.
SeeAlso: AX=0D01h
--------S-140D03-----------------------------
INT 14 - MBBIOS - SET HANDSHAKE BYTE
	AX = 0D03h
	CL = new handshake byte
Return: CL = previous handshake byte
Note:	this function lowers DTR, RTS, etc.
--------S-140E-------------------------------
INT 14 - FOSSIL - KEYBOARD READ WITH WAIT
	AH = 0Eh
Return: AX = xxyyh standard IBM-style scan code
SeeAlso: AH=0Dh"FOSSIL"
--------S-140E-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - WRITE STRING
	AH = 0Eh
	CX = number of characters to write
	ES:BX -> string
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters actually written
	ZF clear if successful
	ZF set on error
SeeAlso: AH=0Fh"Digiboard"
--------S-140E-------------------------------
INT 14 - MBBIOS PACCOM support - SET PERSISTENCE
	AH = 0Eh
	AL = new setting (FFh = 1.0)
Desc:	specify the time from end of DCD to RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"
--------N-140E--DXFFFF-----------------------
INT 14 - Connection Manager - SET HARDWARE FLOW STATE
	AH = 0Eh
	DX = FFFFh
	AL = connection ID from AH=04h/DX=FFFFh
	BL = RTS state (00h off, 01h on)
Return: AH = return code (00h-03h) (see also #0200 at AH=00h/DX=FFFFh)
	    03h invalid request (BL not 00h or 01h)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=03h/DX=FFFFh,AH=0Ah/DX=FFFFh
--------S-140F-------------------------------
INT 14 - FOSSIL - ENABLE/DISABLE FLOW CONTROL
	AH = 0Fh
	AL = bit mask describing requested flow control (see #0237)
	DX = port number
SeeAlso: AH=09h"MBBIOS",AH=10h"FOSSIL"

Bitfields for FOSSIL requested flow control:
Bit(s)	Description	(Table 0237)
 0	XON/XOFF on transmit (watch for XOFF while sending)
 1	CTS/RTS (CTS on transmit/RTS on receive)
 2	reserved
 3	XON/XOFF on receive (send XOFF when buffer near full)
 4-7	all 1
--------S-140F-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - READ STRING
	AH = 0Fh
	CX = number of characters to read
	ES:BX -> buffer
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters read
	ZF clear if successful
	ZF set on error (line status or wrong number of characters)
SeeAlso: AH=0Eh"Digiboard"
--------S-140F-------------------------------
INT 14 - MBBIOS PACCOM support - SET SLOT TIME
	AH = 0Fh
	AL = new setting in clock ticks
Desc:	specify the time from end of DCD to RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Eh"MBBIOS",AH=10h"MBBIOS"
--------N-140F--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN ACTIVE CONNECTION PARAMETERS
	AH = 0Fh
	DX = FFFFh
	AL = connection ID
	CX = size of buffer or 0000h to get length of returned vector
	ES:DI -> buffer for connection parameter vector (see #0208)
Return: AH = return code (00h-02h,06h) (see #0200 at AH=00h/DX=FFFFh)
	CX = number of bytes which could not be returned because the given
	      buffer was too small
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh
--------S-1410-------------------------------
INT 14 - FOSSIL - EXTENDED ^C/^K CHECKING AND TRANSMIT ON/OFF
	AH = 10h
	AL = bit mask
	    bit 0: enable/disable ^C/^K checking
	    bit 1: enable/disable the transmitter
	DX = port number
SeeAlso: AH=0Fh"FOSSIL"
--------S-1410-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR RECEIVE BUFFER
	AH = 10h
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
		 00h successful
	    FFh error
SeeAlso: AH=09h"Digiboard",AH=11h"Digiboard"
--------S-1410-------------------------------
INT 14 - MBBIOS PACCOM support - SET CRC WAIT
	AH = 10h
	AL = new setting in clock ticks (should be at least 5 character times)
Desc:	specify the time from start of last character to dropping RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"
--------N-1410--DXFFFF-----------------------
INT 14 - Connection Manager - QUERY SERVICE NAMES
	AH = 10h
	DX = FFFFh
	CL = subfunction
	    00h search first
	    01h search next
	ES:DI -> pattern buffer (see #0238)
Return: AH = return code (00h,01h,03h,06h) (see also #0200 at AH=00h/DX=FFFFh)
	    01h no (more) matching names
	    03h invalid request
	ES:DI buffer filled with reply buffer (see #0238) containing matched
		  name if AH=00h
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
Desc:	obtain the names of groups and lines available for connection requests,
	  and the names of active Connection Servers
SeeAlso: AH=04h/DX=FFFFh,AH=0Bh/DX=FFFFh

Format of Connection Manager pattern/reply buffer:
Offset	Size	Description	(Table 0238)
 00h	WORD	length of pattern (30h or 32h)
 02h 16 BYTEs	server pattern or name
 12h 16 BYTEs	group pattern or name
 22h 16 BYTEs	line pattern or name
 23h	BYTE	(optional) ???
 24h	BYTE	(optional, returned) current line status
		00h available
		01h out of service
		02h currently allocated to a connection
Note:	pattern may include '?' wildcard to match any character
--------S-1411-------------------------------
INT 14 - FOSSIL - SET CURRENT CURSOR LOCATION
	AH = 11h
	DH = row
	DL = column
Note:	this is the same as INT 10/AH=02h
SeeAlso: AH=12h"FOSSIL"
--------S-1411-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR TRANSMIT BUFFER
	AH = 11h
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    FFh error
SeeAlso: AH=09h"Digiboard",AH=10h"Digiboard"
--------S-1411-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DISABLE PORT
	AH = 11h
	DX = port number
Return: AL = status
	    00h successful
	    01h IRQ for port is shared
	    02h IRQ was reserved
SeeAlso: AH=04h,AH=05h,AH=12h"PC-MOS"
--------S-1412-------------------------------
INT 14 - FOSSIL - READ CURRENT CURSOR LOCATION
	AH = 12h
Return: DH = row
	DL = column
Note:	this is the same as INT 10/AH=03h
SeeAlso: AH=11h"FOSSIL"
--------S-1412-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - GET TRANSMIT BUFFER FREE SPACE
	AH = 12h
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of bytes free
SeeAlso: AH=0Ah"Digiboard",AH=14h"Digiboard"
--------S-1412-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - GET CURRENT PORT PARAMETERS
	AH = 12h
	DX = port number
Return: AH = status
	    FFh port number invalid
	AL = line parameters (see #0201)
	AH = flow control configuration (see #0233 at AH=05h"PC-MOS")
	CX:BX = bps rate
	DL = XOFF character or 00h for none
	DH = XON character or 00h for none
--------S-1413-------------------------------
INT 14 - FOSSIL - SINGLE CHARACTER ANSI WRITE TO SCREEN
	AH = 13h
	AL = character
Note:	should not be called if it is unsafe to call DOS
SeeAlso: AH=15h
--------S-1413-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - REGISTER A PORT WITH A TERMINAL
	AH = 13h
	DX = port number
Return: AH = status
	    FFh port number invalid
	    else
		ES:BX -> BYTE flag (00h buffer empty, FFh buffer contains data)
SeeAlso: AH=17h"PC-MOS"
--------S-1414-------------------------------
INT 14 - FOSSIL - ENABLE OR DISABLE WATCHDOG PROCESSING
	AH = 14h
	AL = 01h enable watchdog
	     00h disable watchdog
	DX = port number
SeeAlso: INT 21/AH=2Bh/CX=6269h/DX=742Dh
--------S-1414-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - OUTPUT STRING
	AH = 14h
	CX = number of characters in string
	DX = port number
	ES:BX -> string to be sent
	SI = timeout in timer ticks or 0000h for default
Return: AX = number of bytes actually sent
	ZF clear if successful
	ZF set on timeout
SeeAlso: AH=01h,AH=15h"PC-MOS"
--------S-1414-------------------------------
INT 14 - Digiboard - GET NUMBER OF BOARDS INSTALLED
	AH = 14h
Return: AX = number of boards installed
SeeAlso: AH=08h"Digiboard",AH=15h"Digiboard"
--------S-1415-------------------------------
INT 14 - FOSSIL - WRITE CHARACTER TO SCREEN USING BIOS SUPPORT ROUTINES
	AH = 15h
	AL = character
SeeAlso: AH=13h"FOSSIL"
--------S-1415-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - INPUT STRING
	AH = 15h
	CX = size of buffer
	DX = port number
	ES:BX -> buffer for received characters
	SI = timeout in clock ticks or 0000h for default
Return: AX = number of characters actually read
	ZF set on timeout (no data available)
SeeAlso: AH=02h,AH=14h"PC-MOS",AH=16h"PC-MOS"
--------S-1415-------------------------------
INT 14 - Digiboard - ENABLE/DISABLE MEMORY
	AH = 15h
	AL = new state (00h disabled, 01h enabled)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=14h"Digiboard",AH=16h"Digiboard"
--------S-1416-------------------------------
INT 14 - FOSSIL - INSERT/DELETE FUNCTION FROM TIMER TICK CHAIN
	AH = 16h
	AL = function
	    00h = delete
	    01h = add
	ES:DX -> routine to call
Return: AX = status
	    0000h successful
	    0001h unsuccessful
SeeAlso: AH=07h"FOSSIL"
--------S-1416-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - LINK TO ANOTHER SERIAL DRIVER
	AH = 16h
	ES:BX -> calling driver's INT 14 entry point
Return: nothing
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
--------S-1416-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CCB COMMAND
	AH = 16h
	AL = CCB command number (see #0239) (see also following entries)
	BL = byte 2
	BH = byte 3
	CL = byte 1 (for all channel functions except 4Eh and 4Fh)
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AX=1646h,AH=18h"Digiboard"

(Table 0239)
Values for Digiboard CCB command number:
 40h	Set Receive Mid Water Mark
 41h	Set Receive High Water Mark
 42h	Flush Receive Buffer
 43h	Flush Transmit Buffer
 44h	Transmit Pause
 45h	Transmit Resume
 46h	Set Interrupt to Host Mask
 47h	Set Baud, Data, Stop and Parity
 48h	Send Break
 49h	Set Modem Lines
 4Ah	Set Break Count
 4Bh	Set Handshake
 4Ch	Set Xon/Xoff Characters
 4Dh	Set Transmit Mid Water Mark
 4Eh	IRQ Polling Timer to Host
 4Fh	Buffer Set All
 50h	Port On
 51h	Port Off
 52h	Receive Pause
 53h	Special Character Interrupt
 54h	RS-422 Enable
--------S-141646-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET INTERRUPT TO HOST MASK
	AX = 1646h
	BL = bits to set
	BH = bits to clear
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=1647h
--------S-141647-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET BAUD/DATABITS/STOPBITS/PARITY
	AX = 1647h
	BL = baud
	BH = datatype
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=1646h,AX=1649h
--------S-141649-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET MODEM LINES
	AX = 1649h
	BL = bits to set
	BH = bits to clear
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=1647h
--------S-14164A-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET BREAK COUNT
	AX = 164Ah
	BL = break count
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=1649h,AX=164Bh
--------S-14164B-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET HANDSHAKE
	AX = 164Bh
	BL = bits to set
	BH = bits to clear
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=1649h,AX=164Ch
--------S-14164C-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET XON/XOFF CHARACTERS
	AX = 164Ch
	BL = XON character
	BH = XOFF character
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=164Bh,AX=164Dh
--------S-14164D-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET TRANSMIT MID-WATER MARK
	AX = 164Dh
	BX = new mid-water mark
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=164Ch,AX=164Eh,AX=164Fh
--------S-14164E-----------------------------
INT 14 - Digiboard - CCB COMMAND - IRQ POLLING TIMER TO HOST
	AX = 164Eh
	BL = ticks
	BH = ???
	CL = mode
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=164Dh
--------S-14164F-----------------------------
INT 14 - Digiboard - CCB COMMAND - BUFFER SET ALL
	AX = 164Fh
	BL = size
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=164Dh
--------S-141653-----------------------------
INT 14 - Digiboard - CCB COMMAND - SPECIAL CHARACTER INTERRUPT
	AX = 1653h
	BL = enable/disable
	BH = special character
	CL = byte 1
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h error
	    FFh error
SeeAlso: AH=16h"Digiboard",AX=1646h
--------S-1417-------------------------------
INT 14 - FOSSIL - REBOOT SYSTEM
	AH = 17h
	AL = method
	    00h = cold boot
	    01h = warm boot
SeeAlso: INT 19,INT 60/DI=0606h
--------S-1417-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - WRITE MODEM CONTROL REGISTER
	AH = 17h
	AL = new value for UART's modem control register
	DX = port number
Return: nothing
--------S-1418-------------------------------
INT 14 - FOSSIL - READ BLOCK
	AH = 18h
	CX = maximum number of characters to transfer
	DX = port number
	ES:DI -> user buffer
Return: AX = number of characters transferred
SeeAlso: AH=19h"FOSSIL",AH=83h"COURIERS",AX=FF02h,INT 6B/AX=0100h
--------S-1418-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - SEND BIOS COMMAND
	AH = 18h
	ES:BX -> 16-byte command string
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    80h timeout
	AL = mailbox status
	    00h no errors
	    8Xh BIOS error
	ES:BX buffer filled in with mailbox string
	ZF clear if no errors
	ZF set if either status byte contains an error code
SeeAlso: AH=16h"Digiboard"
--------S-1418-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - GET DRIVER DESCRIPTION
	AH = 18h
	DX = port number
Return: DS:BX -> 40-byte buffer containing a string identifying the serial
		driver
SeeAlso: AH=06h"PC-MOS"
--------S-1419-------------------------------
INT 14 - FOSSIL - WRITE BLOCK
	AH = 19h
	CX = maximum number of characters to transfer
	DX = port number
	ES:DI -> user buffer
Return: AX = number of characters transferred
SeeAlso: AH=18h"FOSSIL",AH=86h,INT 6B/AX=0000h
--------S-1419-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - SPECIAL CHARACTER INTERRUPT
	AH = 19h
	BL = flag
	    00h disable special character interrupt
	    FFh enable interrupt
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    FFh failed
SeeAlso: AH=1Ah"Digiboard"
--------S-1419-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - SELECTIVE BUFFER FLUSH
	AH = 19h
	AL = what to flush
	    bit 0: input buffer
	    bit 1: output buffer
	DX = port number
Return: nothing
SeeAlso: AH=09h"PC-MOS"
--------S-141A-------------------------------
INT 14 - FOSSIL - BREAK BEGIN OR END
	AH = 1Ah
	AL = 00h stop sending 'break'
	     01h start sending 'break'
	DX = port number
SeeAlso: AH=06h"FOSSIL",AH=8Ah,AH=FAh
--------S-141A-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X - SPECIAL CHARACTER FLAG/COUNTER
	AH = 1Ah
	BX = subfunction
	    00h return pointer to special character flag byte
	    01h return pointer to special character counter word
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: ES:BX -> special character flag or counter
Notes:	flag is FFh if one or more special characters are in the receive
	  buffer; it is 00h and the counter is invalid if no special characters
	  are in the receive buffer
	counter (if valid) contains the number of characters in the receive
	  buffer up to and including the last-received special character
--------S-141B-------------------------------
INT 14 - FOSSIL - RETURN INFORMATION ABOUT THE DRIVER
	AH = 1Bh
	DX = port number
	CX = size of user buffer
	ES:DI -> user buffer for driver info (see #0240)
Return: AX = number of characters transferred
	CX = 3058h ("0X") (X00 FOSSIL only)
	DX = 2030h (" 0") (X00 FOSSIL only)

Format of FOSSIL driver info:
Offset	Size	Description	(Table 0240)
 00h	WORD	size of structure in bytes
 02h	BYTE	FOSSIL spec driver conforms to
 03h	BYTE	revision level of this specific driver
 04h	DWORD	pointer to ASCIZ identification string
 08h	WORD	size of the input buffer
 0Ah	WORD	number of bytes left in buffer
 0Ch	WORD	size of the output buffer
 0Eh	WORD	number of bytes left in buffer
 10h	BYTE	width of screen
 11h	BYTE	length of screen
 12h	BYTE	actual baud rate, computer to modem
--------S-141C-------------------------------
INT 14 - X00 FOSSIL - ACTIVATE PORT
	AH = 1Ch
	DX = port number
Return: AX = 1954h if successful
	BL = maximum function number supported (not including 7Eh and above)
	BH = revision of FOSSIL specification supported
Note:	this is a duplicate of AH=04h, so that AH=04h may be made compatible
	  with the PS/2 BIOS in a future release
SeeAlso: AH=04h"FOSSIL",AH=1Dh
--------S-141D-------------------------------
INT 14 - X00 FOSSIL - DEACTIVATE PORT
	AH = 1Dh
	DX = port number
Return: none
Notes:	this is a duplicate of AH=05h, so that AH=05h may be made compatible
	  with the PS/2 BIOS in a future release
	ignored if the port was never activated with AH=04h or AH=1Ch
SeeAlso: AH=05h"FOSSIL",AH=1Ch
--------S-141E-------------------------------
INT 14 - X00 FOSSIL - EXTENDED LINE CONTROL INITIALIZATION
	AH = 1Eh
	AL = break status
	    00h if break
	    01h if no break
	BH = parity (see #0241)
	BL = number of stop bits
	    00h one stop bit
	    01h two stop bits (1.5 if 5 bit word length)
	CH = word length (see #0242)
	CL = bps rate (see #0243)
	DX = port number
Return: AX = port status code (see #0201,#0202)
Notes:	this function is intended to exactly emulate the PS/2 BIOS AH=04h call
	if the port was locked at X00 load time, the appropriate parameters are
	  ignored
SeeAlso: AH=00h,AH=04h"SERIAL I/O"

(Table 0241)
Values for X00 FOSSIL parity:
 00h	no parity
 01h	odd parity
 02h	even parity
 03h	stick parity odd
 04h	stick parity even
SeeAlso: #0204,#0242,#0243

(Table 0242)
Values for X00 FOSSIL word length:
 00h	5 bits
 01h	6 bits
 02h	7 bits
 03h	8 bits
SeeAlso: #0205,#0241,#0243

(Table 0243)
Values for X00 FOSSIL bps rate:
 00h	110
 01h	150
 02h	300
 03h	600
 04h	1200
 05h	2400
 06h	4800
 07h	9600
 08h	19200
SeeAlso: #0206,#0241,#0242
--------S-141E------------------------------------
INT 14 - HUNTER 16 - READ COMMS PARAMETERS
	AH = 1Eh
	CX = channel number (00h COM1, 01h COM2, ...)
	DS:BX -> buffer for communications parameters (see #0244)
Return: DS:BX buffer filled
Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=20h"HUNTER"

Format of HUNTER 16 communications parameters:
Offset	Size	Description	(Table 0244)
 00h	BYTE	communications type (00h IBM, nonzero Husky)
 01h	BYTE	port number (00h COM1, 01h COM2)
 02h	BYTE	baud rate (00h 110 bps, 01h 150, 02h 300, 03h 600, 04h 1200,
		  05h 2400, 06h 4800, 07h 9600, 08h 19200, 09h 38400)
 03h	BYTE	data bits (01h seven, 02h eight)
 04h	BYTE	parity (00h none, 01h odd, 02h even)
 05h	BYTE	stop bits (00h one, 01h two)
 06h	BYTE	handshake (see #0245)
 07h	BYTE	handshake protocol (00h none, 01h Xon/Xoff, 02h HWK3780)
 08h	BYTE	Nulls after CR (0-20)
 09h	BYTE	LF (00h off, 01h on)
 0Ah	BYTE	Serig. 0..7Fh: Ignore this character
		       80h: Serig off
 0Bh	BYTE	echo (00h off, 01h on)
 0Ch	BYTE	transmit timeout in seconds (1-60) or 00h to disable
 0Dh	BYTE	receive timeout in seconds (1-60) or 00h to disable
 0Eh  5 BYTEs	reserved

Bitfields for HUNTER 16 handshake:
Bit(s)	Description	(Table 0245)
 0-1	0: RTS off, 1: RTS hold, 2: RTS true
 2	DTR enabled
 4	CTS enabled
 5	DSR enabled
 6	DCD enabled
--------S-141F-------------------------------
INT 14 - X00 FOSSIL - EXTENDED SERIAL PORT STATUS/CONTROL
	AH = 1Fh
	AL = 00h read modem control register
	      Return: BL = modem control register (see #0246)
		      AH = status
	AL = 01h write modem control register
	      BL = modem control register (see #0246)
	      Return: AX = status
	DX = port number
Notes:	this function is intended to exactly emulate the PS/2 BIOS AH=05h call
	X00 forces BL bit 3 set (interrupts cannot be disabled)
SeeAlso: AH=00h,AH=05h"SERIAL I/O"

Bitfields for X00 FOSSIL modem control register:
Bit(s)	Description	(Table 0246)
 0	data terminal ready
 1	request to send
 2	OUT1
 3	OUT2 (interrupts) enabled
 4	LOOP
 5-7	reserved
--------S-1420-------------------------------
INT 14 - X00 FOSSIL - DESTRUCTIVE READ WITH NO WAIT
	AH = 20h
	DX = port number
Return: AH = 00h if character was available
	    AL = next character (removed from receive buffer)
	AX = FFFFh if no character available
SeeAlso: AH=0Ch,AH=21h"X00"
--------S-1420-------------------------------
INT 14 - Alloy MW386 - ATTACH LOGICAL COMMUNICATIONS PORT TO PHYSICAL PORT
	AH = 20h
	AL = logical port (01h COM1, 02h COM2)
	DX = physical port number
Return: AX = status
		 0000h successful
	    FFFFh failed
SeeAlso: AH=21h"Alloy",AH=22h"Alloy",AH=23h"Alloy",INT 17/AH=8Bh"Alloy"
--------S-1420-------------------------------
INT 14 - MultiDOS Plus - INITIALIZE PORT
	AH = 20h
	AL = port parameters (see #0197 at AH=00h"SERIAL")
	DX = port number (0-3)
Return: AH = status
	    00h successful
	    41h no such port
	    64h monitor mode already active
SeeAlso: AH=00h"SERIAL",AH=04h"MultiDOS",AH=21h"MultiDOS",AH=23h"MultiDOS"
--------S-1420-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - CHECK OUTPUT QUEUE
	AH = 20h
	DX = port number
Return: AX = number of bytes in output buffer
SeeAlso: AH=0Ah"PC-MOS"
--------S-1420------------------------------------
INT 14 - HUNTER 16 - SELECT COMMS PARAMETERS
	AH = 20h
	CX = channel number (00h COM1, 01h COM2, ...)
	DS:BX -> buffer with communications parameter (see #0244)
Return: AX = status
	    0000h successful
	    0001h invalid parameter
SeeAlso: AH=1Eh"HUNTER",AH=21h"HUNTER"
--------S-1421-------------------------------
INT 14 - X00 FOSSIL - STUFF RECEIVE BUFFER
	AH = 21h
	AL = character
	DX = port number
Notes:	the given character is inserted at the end of the receive buffer as if
	  it had just arrived from the serial port; all normal receive
	  processing (XON/XOFF, ^C/^K) is performed on the character
	fully re-entrant
SeeAlso: AH=20h"X00"
--------S-1421-------------------------------
INT 14 - Alloy MW386 v1.x only - RELEASE PHYSICAL COMMUNICATIONS PORT
	AH = 21h
	DX = physical port number
Return: AX = status
	    0000h successful
	    FFFFh failed
SeeAlso: AH=20h"Alloy",AH=22h"Alloy"
--------S-1421-------------------------------
INT 14 - MultiDOS Plus - TRANSMIT CHARACTER
	AH = 21h
	AL = character to send
	DX = port number
Return: AH = status (see #0247)
Note:	monitor mode must have been turned on with AH=24h before calling
SeeAlso: AH=20h"MultiDOS",AH=22h"MultiDOS",AH=24h"MultiDOS"

(Table 0247)
Values for MultiDOS Plus status:
 00h	successful
 39h	no DSR or CTS
 3Ch	no DSR
 3Bh	no CTS
 41h	no such port
 42h	monitor mode not active
 97h	timed out
--------S-1421-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - OUTPUT CHARACTER, WITH TIMEOUT
	AH = 21h
	AL = char to send
	DX = port number
	SI = timeout in timer ticks (0000h = default)
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
SeeAlso: AH=01h,AH=0Eh"PC/MOS",AH=22h"PC-MOS"
--------S-1421------------------------------------
INT 14 - HUNTER 16 - EXTENDED CONTROL
	AH = 21h
	AL = command
	    01h force transmission of buffer
	    02h clear transmit buffer
	    03h clear receive buffer
	DX = port (00h COM1, 01h COM2)
Return: AH = extended status
Desc:	executes the command on the selected port
SeeAlso: AH=1Eh"HUNTER",AH=20h"HUNTER",AH=22h"HUNTER",AH=24h"HUNTER"
--------S-1422-------------------------------
INT 14 - Alloy MW386 v2+ - RELEASE LOGICAL COMMUNICATIONS PORT
	AH = 22h
	AL = logical port (01h COM1, 02h COM2)
Return: AX = status (0000h successful)
SeeAlso: AH=20h"Alloy",AH=21h"Alloy"
--------S-1422-------------------------------
INT 14 - MultiDOS Plus - RECEIVE CHARACTER
	AH = 22h
	DX = port number
Return: AH = status (see also AH=21h"MultiDOS")
	    00h successful
		AL = character
	    3Dh framing and parity error
	    3Eh overrun error
	    3Fh framing error
	    40h parity error
	    96h ring buffer overflow
Note:	if no character is available, this function waits until a character
	  arrives or an implementation-dependent timeout elapses
SeeAlso: AH=20h"MultiDOS",AH=21h"MultiDOS",AH=27h
--------S-1422-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - RECEIVE CHARACTER, WITH TIMEOUT
	AH = 22h
	DX = port number
	SI = timeout in timer ticks (0000h = default)
Return: AH = port status (see also #0201 at AH=03h)
	     bit 7 = 1 indicates time-out
	AL = character received
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
SeeAlso: AH=02h,AH=0Fh"PC-MOS",AH=21h"PC-MOS"
--------S-1422------------------------------------
INT 14 - HUNTER 16 - EXTENDED STATUS
	AH = 22h
	DX = port (00h COM1, 01h COM2)
Return: AH = extended status
	BX = number of characters in input buffer
	CX = number of characters in output buffer
Desc:	returns the most recent Extended Status code for the port
SeeAlso: AH=21h"HUNTER"
--------S-1423-------------------------------
INT 14 - Alloy MW386 v2+ - GET PORT NUMBER FROM LOGICAL PORT ID
	AH = 23h
	AL = logical port (01h COM1, 02h COM2)
	DH = user ID
	DL = process ID (DH,DL both FFh for current task)
Return: AL = MW386 port mode (see #0248)
	CX = MW386 port number
	DH = owner's user ID
	DL = owner's task ID
SeeAlso: AH=20h"Alloy",INT 17/AH=8Bh"Alloy"

Bitfields for MW386 port mode:
Bit(s)	Description	(Table 0248)
 0	port is shared (spooler only)
 1	port is spooled instead of direct (spooler only)
 2	port is assigned as logical COM device, not in spooler
 3	port is free
--------S-1423-------------------------------
INT 14 - MultiDOS Plus - GET PORT STATUS
	AH = 23h
	DX = port number
Return: AH = line status (see #0201 at AH=03h)
	AL = modem status (see #0202 at AH=03h)
SeeAlso: AH=03h,AH=07h"MultiDOS",AH=20h"MultiDOS"
--------S-1423-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DECLARE PORT OWNERSHIP
	AH = 23h
	DX = port number
	BX = TCB segment/selector address of owner task
Return: nothing
SeeAlso: AH=0Dh"PC-MOS"
--------S-1423------------------------------------
INT 14 - HUNTER 16 - CONTROL HANDSHAKE LINES
	AH = 23h
	BH = handshake line to set (00h RTS, 01h DTR)
	BL = new level (00h low, 01h high)
Desc:	sets the handshake lines of COM1 to the desired level
SeeAlso: AH=21h"HUNTER",AH=24h"HUNTER"
--------S-1424-------------------------------
INT 14 - Alloy MW386 v2+ - CHANGE PHYSICAL PORT PARAMETERS
	AH = 24h
	CX = physical I/O port number
	DS:DX -> configuration table (see #0249)
Return: AH = 00h
Note:	invalid port numbers are merely ignored
SeeAlso: INT 17/AH=96h

Format of Alloy MW386 configuration table:
Offset	Size	Description	(Table 0249)
 00h	BYTE	baud rate (see #0250)
 01h	BYTE	data bits (00h=5, 01h=6, 02h=7, 03h=8)
 02h	BYTE	parity (00h none, 01h odd, 02h even)
 03h	BYTE	stop bits (00h=1, 01h=2)
 04h	BYTE	receive flow control
		00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC, 04h RTS/CTS
 05h	BYTE	transmit flow control (as for receive)

(Table 0250)
Values for Alloy MW386 baud rate:
 00h	38400
 01h	19200
 02h	9600
 03h	7200
 04h	4800
 05h	3600
 06h	2400
 07h	2000
 08h	1200
 09h	600
 0Ah	300
 0Bh	150
 0Ch	134.5
SeeAlso: #0206
--------S-1424-------------------------------
INT 14 - MultiDOS Plus - SET MONITOR MODE
	AH = 24h
	AL = port status storage
	    00h single status for entire receive buffer
	    01h separate status kept for each byte in receive buffer
	DX = port number
Return: AH = status
		 00h successful
	    3Ah invalid status storage specified
	    41h no such port
	    64h monitor mode already active
Note:	in monitor mode, MultiDOS redirects all BIOS video output to a serial
	  port
SeeAlso: AH=20h"MultiDOS",AH=25h
--------S-1424-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - ???
	AH = 24h
Return: ???
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
--------S-1424------------------------------------
INT 14 - HUNTER 16 - CONTROL CTS HANDSHAKING
	AH = 24h
	AL = new CTS handshake state for COM1 (00h disabled, 01h enabled)
SeeAlso: AH=23h"HUNTER",AH=25h"HUNTER",AH=26h"HUNTER"
--------S-1425-------------------------------
INT 14 - MultiDOS Plus - CLEAR BUFFERS
	AH = 25h
	AL = function
	    00h only clear buffers
		 01h clear buffers and deactivate
	DX = port number
Return: AH = status
	    00h successful
	    3Ah invalid function
	    41h no such port
	    42h monitor mode not active
SeeAlso: AH=20h"MultiDOS",AH=24h"MultiDOS"
--------S-1425------------------------------------
INT 14 - HUNTER 16 - CONTROL RS232 DRIVERS
	AH = 25h
	AL = new state of RS232 drivers (00h off, 01h on)
Note:	this function can be used to save power by turning off the RS232 
	  drivers.  It can also be used to turn on the RS232 drivers before
	  connecting to a remote system to avoid "garbage" while the drivers
	  turn on.
SeeAlso: AH=23h"HUNTER",AH=24h"HUNTER",AH=26h"HUNTER"
--------S-1426------------------------------------
INT 14 - HUNTER 16 - CONTROL RI POWER UP
	AH = 26h
	AL = 00h enable RI power up
	    else disable RI power up
Desc:	control whether the Ring Indicator handshake can power up the Hunter
--------S-1427-------------------------------
INT 14 - MultiDOS Plus - GET BUFFER CHARACTER COUNT
	AH = 27h
	DX = port number
Return: AH = status
	    00h successful
	    41h no such port
	    42h monitor mode not active
	AL = number of characters in receive buffer
--------S-1427------------------------------------
INT 14 - HUNTER 16 - GET INSTALLED PROTOCOLS COUNT
	AH = 27h
	AL = number of extended protocols installed (since last call)
Return: AL = total number installed, including new ones
Desc:	Returns the number of extended communication protocols installed
SeeAlso: AH=25h"HUNTER",AH=28h"HUNTER"
--------S-1428------------------------------------
INT 14 - HUNTER 16 - GET PROTOCOL NAME
	AH = 28h
	AL = protocol handle
	DS:BX -> 8 character buffer for protocol name
Return:	AH = status
	    00h successful
		DS:BX buffer filled with the protocol name
	    FFh failed
SeeAlso: AH=27h"HUNTER",AH=29h"HUNTER"
--------S-1429------------------------------------
INT 14 - HUNTER 16 - GET PROTOCOL HANDLE
	AH = 29h
	DS:BX -> buffer containing the protocol name
Return: AH = status 
	    00h successful
		AL = handle
	    FFh failed
SeeAlso: AH=28h"HUNTER",AH=2Ah"HUNTER"
--------S-142A------------------------------------
INT 14 - HUNTER 16 - EXTENDED PROTOCOL MENU
	AH = 2Ah
	AL = protocol handle
Return: AH = status
	    00h successful
	    FFh failed
	AL = menu handle
SeeAlso: AH=29h"HUNTER",AH=2Bh"HUNTER"
--------S-142B------------------------------------
INT 14 - HUNTER 16 - GET EXTENDED PROTOCOL PARAMETERS
	AH = 2Bh
	AL = protocol handle
	DS:BX -> buffer for extended protocol parameters
Return: AH = status	
	    00h successful
		DS:BX buffer filled with extended parameters
	    FFh failed
SeeAlso: AH=2Ah"HUNTER"
--------S-142C00----------------------------------
INT 14 - HUNTER 16 - GET DTR
	AX = 2C00h
Return: AH = 00h
	BL = current state
	    00h	 normal DTR operation
	    else DTR is forced high
Desc:	Indicates whether the DTR signal on COM1 is forced high
Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=2Ch"SET DTR"
--------S-142C------------------------------------
INT 14 - HUNTER 16 - SET DTR
	AH = 2Ch
	AL nonzero
	BL = new state
	    00h	 normal operation
	    else force DTR high
Return: AH = 00h
Desc:	determine whether the DTR signal on COM1 should be forced high
SeeAlso: AX=2C00h
----------1436-------------------------------
INT 14 - ComShare - INSTALLATION CHECK
	AH = 36h
Return: AX = 4353h ('CS') if installed
	    BX = bitmap of installed ports (bit 0: COM1 is gateway, etc.)
	    CX reserved for future use
	    WORD DX:[0100h] = ComShare version number
Program: The ComShare System is a modem-sharing program for NetBIOS and
	  NetWare-based networks by NashaKala Corporation
Note:	ComShare supports the standard BIOS INT 14h calls with a slight
	  change in the interpretation of speed values (see #0206 at AH=04h)
SeeAlso: AH=00h,AH=04h,AX=F4FFh
--------S-1456-------------------------------
INT 14 U - BWCOM14 - INSTALLATION CHECK
	AH = 56h
Return: CX = 0001h if installed
Program: BWCOM14 is a network serial port emulator (simulating a Hayes modem
	  connected to the serial port) distributed as part of the
	  Beame&Whiteside BW-NFS package
SeeAlso: AH=57h,AH=58h,INT 2F/AX=DF00h/BX=5445h
--------S-1457-------------------------------
INT 14 U - BWCOM14 - INITIALIZE
	AH = 57h
	DL = port number
Return: AL = initialization status (00h successful, 01h already initialized)
	CX = port status (0001h port redirected, 0002h and FFFFh failed)
Note:	after this call, all invocations of INT 14/AH=00h-03h for the specified
	  port will be handled by BWCOM14 until AH=58h is called
SeeAlso: AH=00h"SERIAL",AH=56h,AH=58h
--------S-1458-------------------------------
INT 14 U - BWCOM14 - SHUTDOWN
	AH = 58h
Return: CX = status (0001h successful, 0002h not initialized)
Note:	after this call, BWCOM14 will no longer redirect the COM port
SeeAlso: AH=56h,AH=57h
--------N-146F--BXFFFE-----------------------
INT 14 U - Connection Manager - ???
	AH = 6Fh
	BX = FFFEh
	???
Return: ???
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
--------N-146F--BXFFFF-----------------------
INT 14 - Connection Manager - INSTALLATION CHECK
	AH = 6Fh
	BX = FFFFh
Return: DX:BX -> Connection Manager Communication Table if installed
	BX = FFFFh if not installed
SeeAlso: AH=0Dh/DX=FFFFh
--------S-146F00-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_INQUIRE" - INSTALLATION CHECK
	AX = 6F00h
	BX <> 4850h (usually set to 0000h for simplicity)
Return: BX = 4850h ("HP") if HP Extended BIOS serial port extensions available
	AX destroyed
Note:	supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F01h,AX=6F02h,AX=6F03h,AX=6F04h,INT 10/AX=6F00h,INT 14/AX=6F00h
SeeAlso: INT 17/AX=6F00h,INT 33/AX=6F00h
--------S-146F01-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_EXINIT" - INITIALIZE SERIAL PORT
	AX = 6F01h
	BX = port attributes (see #0251)
	DX = port number (0-3)
Return: AH = line status (see #0201)
	AL = modem status (see #0202)
Note:	supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F00h

Bitfields for HP Vectra Extended BIOS serial port attributes:
Bit(s)	Description	(Table 0251)
 8-5	data rate (110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200)
 4-3	parity
	00 none
	01 odd
	10 none
	11 even
 2	stop bits (0 = one, 1 = two)
 1-0	bits per character
	10 seven-bit characters
	11 eight-bit characters
	0x undefined
--------S-146F02-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_PUT_BUFFER" - TRANSMIT BUFFER
	AX = 6F02h
	CX = number of characters in buffer
	DX = port number (0-3)
	ES:DI -> buffer containing characters
Return: AH = line status (see #0201)
	AL = modem status (see #0202)
	CX = number of bytes actually sent
	ES:DI -> next byte to be transferred (unchanged if all bytes sent)
Desc:	send characters from the specified buffer until all characters have
	  been sent or an error/timeout is encountered
Note:	supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F00h,AX=6F03h,AX=6F04h,INT 17/AX=6F02h
--------S-146F03-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_GET_BUFFER" - READ DATA INTO BUFFER
	AX = 6F03h
	CX = size of buffer
	DX = port number (0-3)
	ES:DI -> buffer for received characters
Return: AH = line status (see #0201)
	---on error (AH bit 7 set)---
	   AL = 00h
	   ES:DI -> next byte to be transferred
	---if successful---
	   AL = last byte read
	   ES:DI unchanged
	CX = number of bytes read
Desc:	read characters into the specified buffer until the buffer is filled
	  or a timeout occurs
Notes:	supported by original HP Vectra AT and by ES/QS/RS series Vectras
	polls the Data Set Ready modem status and Data Ready line status bits
	  to determine when characters are available
SeeAlso: AX=6F00h,AX=6F02h,AX=6F04h
--------S-146F04-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_TRM_BUFFER" - READ UNTIL TERMINATOR
	AX = 6F04h
	BL = lowest termination character
	BH = highest termination character
	CX = size of buffer
	DX = port number (0-3)
	ES:DI -> buffer for received characters
Return: AH = line status (see #0201)
	---on error (AH bit 7 set)---
	   AL = 00h
	   ES:DI -> next byte to be transferred
	---if successful---
	   AL = last byte read
	   ES:DI unchanged
	CX = number of bytes read
Desc:	read characters into the specified buffer until the buffer is filled,
	  a character in the specified range is received, or a timeout occurs
Notes:	supported by original HP Vectra AT and by ES/QS/RS series Vectras
	polls the Data Set Ready modem status and Data Ready line status bits
	  to determine when characters are available
SeeAlso: AX=6F00h,AX=6F02h,AX=6F03h
--------S-147E-------------------------------
INT 14 - FOSSIL - INSTALL AN EXTERNAL APPLICATION FUNCTION
	AH = 7Eh
	AL = code assigned to external application (80h-BFh)
	    80h reserved for communications FOSSIL
	    81h video FOSSIL
	    82h reserved for keyboard FOSSIL
	    83h reserved for system FOSSIL
	ES:DX -> entry point
Return: AX = 1954h
	BL = code assigned to application (same as input AL)
	DH = 00h failed
	     01h successful
SeeAlso: AH=7Fh,AH=80h"FOSSIL",AX=8100h,AH=82h"FOSSIL",AH=83h"FOSSIL"
--------S-147F-------------------------------
INT 14 - FOSSIL - REMOVE AN EXTERNAL APPLICATION FUNCTION
	AH = 7Fh
	AL = code assigned to external application
	ES:DX -> entry point
Return: AX = 1954h
	BL = code assigned to application (same as input AL)
	DH = 00h failed
	     01h successful
SeeAlso: AH=7Eh
--------S-1480-------------------------------
INT 14 - COMMUNICATIONS FOSSIL
	AH = 80h
SeeAlso: AH=7Eh
--------S-1480-------------------------------
INT 14 - COURIERS.COM - INSTALLATION CHECK
	AH = 80h
Return: AH = E8h if loaded
Program: COURIERS is a TSR utility by PC Magazine
--------S-148000-----------------------------
INT 14 - ARTICOM - INSTALLATION CHECK
	AX = 8000h
Return: AL = FFh if installed
	    BH = major version
	    BL = minor version
Program: ArtiCom is an asynchronous communications driver by Artisoft which
	  works on top of NetBIOS and allows modem/serial-port sharing by
	  programs using INT 14 for serial I/O.
Note:	ArtiCom supports 32 simultaneous COM ports using multiport cards and
	  drivers
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=05h,AX=8001h,AX=8002h
--------S-148000-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET ERROR CODE AND BUFFER STATUS
	AX = 8000h
	DX = port number
Return: AX = code for last error (see #0252)
	BX = number of characters in output buffer
	CX = nubmer of characters in input buffer
	DX = state flag (see #0253)
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
SeeAlso: AX=8001h"COMM-DRV",AX=8002h"COMM-DRV",AX=8003h"COMM-DRV"

(Table 0252)
Values for COMM-DRV error code:
 00h	no error
 01h	buffer not set or attempted to change buffer for active port
 02h	port not active
 03h	transmit buffer full
 04h	receive buffer full
 05h	syntax error
 06h	invalid buffer size
 07h	invalid port
 08h	handler changed
 09h	invalid baud rate
 0Ah	invalid parity setting
 0Bh	invalid data length
 0Ch	invalid number of stop bits
 0Dh	invalid protocol number
 0Eh	IRQ changed
 0Fh	port changged
 10h	invalid threshold setting
 11h	invalid IRQ number
 12h	interrupts not enabled
 13h	invalid break syntax
 14h	fatal error
 15h	CTS error
 16h	invalid RS232 I/O port address
 17h	environment variable not set
 18h	error on IOCTL call
 19h	error during atexit cleanup
 1Ah	error mapping for direct calls
 1Bh	error opening device
 1Ch	unable to allocate memory
 1Dh	error on external micro card
 1Eh	card changed error
 1Fh	card type error
 20h	not supported
 21h	parent port error
 22h	card command buffer full
 23h	no subdevice for this port
 24h	unknown error
 25h	external card busy
 26h	no more timers available
 27h	INT 14 vector changed
 28h	INT 08 vector changed
 29h	DPMI error
 2Ah	TSR buffer too small (or nonexistent)
 2Bh	out of asynchronous resources
 2Ch	out of timer resources
 2Dh	out of "other" timer resources
 2Eh	file I/O error
 2Fh	hardware memory > 64K

Bitfields for state flag :
Bit(s)	Description	(Table 0253)
 0	port is active
 1	output throttled (XOFF received, or DSR or CTS reset)
 2	input throttled (XOFF sent, or DTR or RTS reset)
--------S-148001-----------------------------
INT 14 - ARTICOM - UNLOAD ASYNCHRONOUS REDIRECTOR FROM MEMORY
	AX = 8001h
Return: AX = error code, if error (see #0255)
SeeAlso: AX=8000h"ARTICOM",AX=8002h"ARTICOM",AX=8003h"ARTICOM"
Index:	uninstall;ARTICOM
--------S-148001-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET PORT PARAMETERS
	AX = 8001h
	DX = port number
Return: BX:DI -> Port Control Block (see #0262)
SeeAlso: AX=8000h"COMM-DRV",AX=8002h"COMM-DRV",AX=8003h"COMM-DRV"
--------S-148002-----------------------------
INT 14 - ARTICOM - GET ASYNCHRONOUS REDIRECTOR STATUS
	AX = 8002h
	ES:DI -> buffer for redirector status structure (see #0254)
Return: AX = error code, if error (see #0255)
SeeAlso: AX=8000h"ARTICOM",AX=8003h"ARTICOM"

Format of ARTICOM redirector status:
Offset	Size	Description	(Table 0254)
 00h	WORD	redirector major and minor version numbers
 02h	WORD	redirectable ports found
 04h	WORD	redirectable ports + local ports found
 06h	WORD	redirector internal buffer size
 08h	WORD	maximum servers maintained
 0Ah	WORD	number of adapters found
--------S-148002-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET PORT PARAMETERS
	AX = 8002h
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
	    BX:DI -> Port Control Block (see #0262) (modifyable portion only)
SeeAlso: AX=8000h"COMM-DRV",AX=8001h"COMM-DRV",AX=8003h"COMM-DRV"
--------S-148003-----------------------------
INT 14 - ARTICOM - TRANSLATE ERROR CODE TO ERROR STRING
	AX = 8003h
	CX = error number to translate (see #0255)
Return: ES:DI -> ASCIZ error text or 0000h:0000h if unable to translate
SeeAlso: AX=8000h

(Table 0255)
Values for ARTICOM error codes:
 00h	"No error"
 01h	"An invalid port number was specified"
 02h	"Port is already redirected"
 03h	"Too many ports redirected"
 04h	"Cannot locate the server"
 05h	"Server is busy"
 06h	"Access denied"
 07h	"Resource in use"
 08h	"Resource in use - request queued"
 09h	"No such resource"
 0Ah	"Invalid username/password pair"
 0Bh	"Noncompatible version number"
 0Ch	"Can't remove from memory"
 0Dh	"Bad NETBIOS adapter number"
 0Eh	"No more entries in list"
 0Fh	"Resource is not available at this time"
 10h	"Invalid value to INT 14 call"
--------S-148003-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET I/O BUFFER SIZES
	AX = 8003h
	DX = port number
Return: AX = number of characters in input buffer
	BX = input buffer size
	CX = number of characters in output buffer
	DX = output buffer size
SeeAlso: AX=8000h"COMM-DRV",AX=8001h"COMM-DRV",AX=8002h"COMM-DRV"
--------S-148004-----------------------------
INT 14 - ARTICOM - ATTACH ASYNCHRONOUS RESOURCE
	AX = 8004h
	DX = port to redirect (COM1=0, COM2=1, ...)
	CH = attach type
	CL = adapter to use for attach, 0FFh to search all
	ES:DI -> attachment structure (see #0256)
Return: AX = error code, if error (see #0255)
Note:	The wildcard '*' is supported in the server and resource fields.  If
	  wild cards are used then the first matching available server is
	  attached.
SeeAlso: AX=8000h,AX=8003h,AX=8005h

Format of ARTICOM attachment structure:
Offset	Size	Description	(Table 0256)
 00h 16 BYTEs	server to look for attach
 10h 16 BYTEs	attach to resource name
 20h 16 BYTEs	username for attach
 30h 16 BYTEs	password for username or resource
 40h	BYTE	attach type
		00h normal
		01h queue if resource is in use (not yet supported in v1.00)
--------S-148005-----------------------------
INT 14 - ARTICOM - DETACH ASYNCHRONOUS RESOURCE
	AX = 8005h
	DX = port to detach (COM1=0, COM2=1, ...)
Return: AX = error code, if error (see #0255)
Note:	only a previously attached resource can be detached
SeeAlso: AX=8000h,AX=8003h,AX=8004h
--------S-148006-----------------------------
INT 14 - ARTICOM - GET RESOURCE INFORMATION
	AX = 8006h
	BX = remote port (COM1=0, COM2=1, ...)
	CL = adapter number, FFh to try all adapters
	ES:DI -> resource information structure (see #0257)
	DS:SI -> 16 byte server name. See note.
Return: AX = error code, if error (see #0255)
	BX = next remote port, recall to get next resource info
Note:	Wild cards supported in both the resource field and server name
	  string DS:SI. If wild cards used then first matching available
	  resource information is searched. Set the resource field to FFh to
	  return all resources.
SeeAlso: AX=8000h,AX=8002h,AX=8003h,AX=8007h

Format of ARTICOM resource information structure:
Offset	Size	Description	(Table 0257)
 00h	BYTE	00h = free, else used
 01h 16 BYTEs	resource name
 11h 16 BYTEs	username of resource user
 21h	WORD	amount of time used
 23h	WORD	amount of time remaining
 53h 48 BYTEs	description of resource
 93h 64 BYTEs	initialization string for modem
 B3h 32 BYTEs	dial string for modem
 D3h 32 BYTEs	hang-up string for modem
--------S-148007-----------------------------
INT 14 - ARTICOM - GET REDIRECTED PORT INFORMATION
	AX = 8007h
	DX = port index (COM1=0, COM2=1, ...)
	ES:DI -> buffer for port information structure (see #0258)
Return: CF clear if redirection info returned and port is redirected
	CF set if not a redirected port
	AX = error code, if error (see #0255)
SeeAlso: AX=8000h,AX=8003h,AX=8006h,AX=8008h

Format of ARTICOM port information structure:
Offset	Size	Description	(Table 0258)
 00h 16 BYTEs	server name resource is on
 10h	BYTE	adapter number server is on
 11h 16 BYTEs	resource name
 21h	WORD	remote port index, use to get additional information
 23h	WORD	buffer size
 25h	WORD	baud rate (see #0259)
 26h	BYTE	modem status register
 27h	BYTE	modem control register
 28h	BYTE	line status register
 29h	BYTE	line control register
 2Ah	BYTE	flow control in use: 0 - NONE, 1 - XON/XOFF, 2 - RTS/CTS
 2Bh	WORD	send timeout in ticks
 2Dh	WORD	receive timeout in ticks
 2Fh	WORD	time used on remote port
 31h	WORD	time left before timeout
 33h	BYTE	if server changes allowed?
 34h	WORD	FFFFh (-1) if connection ok, else old port index

(Table 0259)
Values for ARTICOM baud rate:
 00h	110
 01h	150
 02h	300
 03h	600
 04h	1200
 05h	2400
 06h	4800
 07h	9600
 08h	19200
 09h	38400
 0Ah	57600
 0Bh	115200
 0Ch	134.5
 0Dh	1800
 0Eh	2000
 0Fh	3600
 10h	7200
SeeAlso: #0206
--------S-148008-----------------------------
INT 14 - ARTICOM - GET AVAILABLE SERVER NAME
	AX = 8008h
	BX = server index (0,1,...)
	ES:DI -> server name structure (see #0260)
Return: AX = error code, if error (see #0255)
	BX = next remote port, repeat call to get next available server
Note:	the wildcard '*' is supported in the server name field.	 Set the
	  server name to FFh to search for all servers.
SeeAlso: AX=8000h,AX=8003h,AX=8007h

Format of ARTICOM server name structure:
Offset	 Size	  Description	(Table 0260)
  00h 16 BYTEs	  (call) ASCIZ server name
  10h	 BYTE	  (ret) the adapter server is found
--------S-148009-----------------------------
INT 14 - ARTICOM - SET SEND AND RECEIVE TIMEOUTS
	AX = 8009h
	BX = send timeout in ticks
	CX = receive timeout in ticks
	DX = port index (COM1=0, COM2=1, ...)
Return: nothing
SeeAlso: AX=8000h,AX=800Ah
--------S-14800A-----------------------------
INT 14 - ARTICOM - MODIFY FLOW CONTROL
	AX = 800Ah
	BL = flow control type (00h none, 01h XON/XOFF, 02h RTS/CTS)
	DX = port index (COM1=0, COM2=1, ...)
Return: AX = error code, if error (see #0255)
Note:	for attached ports only!
SeeAlso: AX=8000h,AX=8003h,AX=8009h
--------S-148025-----------------------------
INT 14 - ARTICOM - SET INTERNAL SEND/RECEIVE VECTOR
	AX = 8025h
	DS:DX -> address of trap function (see #0261) to call on read/write
Note:	setting the vector to a user function allows the redirector's activity
	  to be monitored.
SeeAlso: AX=8000h,AX=8035h,INT 21/AH=25h

(Table 0261)
Values ARTICOM trap function is called with:
	AH = operation
	    80h reading character
	    81h writing character
	AL = character
Return: AX must be preserved
	far JUMP to old trap function (see AX=8035h)
--------S-148035-----------------------------
INT 14 - ARTICOM - GET INTERNAL SEND/RECEIVE VECTOR
	AX = 8035h
Return: ES:BX -> address of current send/receive routine
Note:	this function returns the address of the routine which is called
	  inside A-REDIR.EXE each time a character is received or sent on the
	  active COM port.
SeeAlso: AX=8000h,AX=8025h,INT 21/AH=35h
--------S-1481-------------------------------
INT 14 - COURIERS.COM - CHECK IF PORT BUSY
	AH = 81h
	AL = port number (1-4)
Return: AH = 00h port available
	     01h port exists but already in use
	     02h port nonexistent
Program: COURIERS is a TSR utility by PC Magazine
SeeAlso: AH=83h,AH=8Dh
--------S-1481-------------------------------
INT 14 - COMM-DRV - EXTENDED INITIALIZATION
	AH = 81h
	BX:DI -> port control block (see #0262)
	DX = port number
Return: AH = line status register (see #0201)
	    error if bit 7 set
	AL = modem status register (see #0202)
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
Note:	AX=8001h should be called first to fill in the port control block
SeeAlso: AH=00h,AX=8001h,AH=82h"COMM-DRV",AH=86h"COMM-DRV"

Format of COMM-DRV port control block:
Offset	Type	Description	(Table 0262)
 00h	WORD	port IO address
 02h	WORD	port IRQ
 04h	WORD	baud rate
 06h	WORD	parity
 08h	WORD	data bits
 0Ah	WORD	stop bits
 0Ch	WORD	break status (0000h off)
 0Eh	WORD	flow control protocol
 10h	BYTE	input block
 11h	BYTE	output block
 12h	WORD	low threshold
 14h	WORD	high threshold
 16h	WORD	segment of buffer
 18h	WORD	offset of buffer
 1Ah	WORD	input buffer length
 1Ch	WORD	output buffer length
 1Eh	BYTE	auxiliary address
 1Fh	BYTE	spare
 20h  4 WORDs	spares
--------V-148100-----------------------------
INT 14 - VIDEO FOSSIL - RETURN VFOSSIL INFORMATION
	AX = 8100h
	ES:DI -> buffer for VFOSSIL information (see #0263)
Return: AX = 1954h if installed
SeeAlso: AH=7Eh,AX=8101h

Format of VFOSSIL information:
Offset	Size	Description	(Table 0263)
 00h	WORD	size of information in bytes, including this field
 02h	WORD	VFOSSIL major version
 04h	WORD	VFOSSIL revision level
 06h	WORD	highest VFOSSIL application function supported
--------V-148101-----------------------------
INT 14 - VIDEO FOSSIL - OPEN VFOSSIL
	AX = 8101h
	ES:DI -> buffer for application function table (see #0264)
	CX = length of buffer in bytes
Return: AX = 1954h if installed
	    BH = highest VFOSSIL application function supported
Note:	the number of initialized pointers in the application function table
	  will never exceed CX/4; if the buffer is large enough, BH+1 pointers
	  will be initialized
SeeAlso: AX=8102h

Format of VFOSSIL application function table:
Offset	Size	Description	(Table 0264)
 00h	DWORD	-> function to query current video mode (VioGetMode)(see #0269)
 04h	DWORD	-> function to set video mode (VioSetMode) (see #0270)
 08h	DWORD	-> function to query hardware config (VioGetConfig) (see #0271)
 0Ch	DWORD	-> function to write data in TTY mode (VioWrtTTY) (see #0272)
 10h	DWORD	-> function to get current ANSI state (VioGetANSI) (see #0273)
 14h	DWORD	-> function to set new ANSI state (VioSetANSI) (see #0274)
 18h	DWORD	-> function to get curr cursor position (VioGetCurPos)
		  (see #0275)
 1Ch	DWORD	-> function to set cursor position (VioSetCurPos) (see #0276)
 20h	DWORD	-> function to get cursor shape (VioGetCurType) (see #0277)
 24h	DWORD	-> function to set cursor shape (VioSetCurType) (see #0278)
 28h	DWORD	-> function to scroll screen up (VioScrollUp) (see #0279)
 2Ch	DWORD	-> function to scroll screen down (VioScrollDn) (see #0280)
 30h	DWORD	-> function to read cell string from screen (VioReadCellStr)
		  (see #0281)
 34h	DWORD	-> function to read char string from screen (VioReadCharStr)
		  (see #0282)
 38h	DWORD	-> function to write a cell string (VioWrtCellStr)
		  (see #0283)
 3Ch	DWORD	-> function to write char string, leaving attr (VioWrtCharStr)
		  (see #0284)
 40h	DWORD	-> function to write char string,const attr (VioWrtCharStrAttr)
		  (see #0285)
 44h	DWORD	-> function to replicate an attribute (VioWrtNAttr)
		  (see #0286)
 48h	DWORD	-> function to replicate a cell (VioWrtNCell)
		  (see #0287)
 4Ch	DWORD	-> function to replicate a character (VioWrtNChar)
		  (see #0288)

Format of VFOSSIL video mode data structure:
Offset	Size	Description	(Table 0265)
 00h	WORD	length of structure including this field
 02h	BYTE	mode characteristics
		bit 0: clear if MDA, set otherwise
		bit 1: graphics mode
		bit 2: color disabled (black-and-white)
 03h	BYTE	number of colors supported (1=2 colors, 4=16 colors, etc)
 04h	WORD	number of text columns
 06h	WORD	number of text rows
 08h	WORD	reserved
 0Ah	WORD	reserved
 0Ch	DWORD	reserved

Format of VFOSSIL video configuration data:
Offset	Size	Description	(Table 0266)
 00h	WORD	structure length including this field
 02h	WORD	adapter type
		00h monochrome/printer
		01h CGA
		02h EGA
		03h VGA
		07h 8514/A
 04h	WORD	display type
		00h monochrome
		01h color
		02h enhanced color
		09h 8514
 06h	DWORD	adapter memory size

Format of VFOSSIL cursor type record:
Offset	Size	Description	(Table 0267)
 00h	WORD	cursor start line
 02h	WORD	cursor end line
 04h	WORD	cursor width (always 01h)
 06h	WORD	cursor attribute (FFFFh = hidden)

(Table 0268)
Values for VFOSSIL error code:
 0000h	successful
 0074h	internal VIO failure
 0163h	unsupported mode
 0166h	invalid row value
 0167h	invalid column value
 017Eh	buffer too small
 01A5h	invalid VIO parameter
 01B4h	invalid VIO handle

(Table 0269)
Call VioGetMode with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to video mode data structure (see #0265)
Return: AX = error code (00h, 74h, 17Eh, 1B4h) (see #0268)
SeeAlso: #0270

(Table 0270)
Call VioSetMode with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to video mode data structure (see #0265)
Return: AX = error code (00h, 74h, 163h, 17Eh, 1A5h, 1B4h) (see #0268)
SeeAlso: #0269

(Table 0271)
Call VioGetConfig with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to video configuration data buffer (see #0266)
Return: AX = error code (00h, 74h, 17Eh, 1B4h) (see #0268)

(Table 0272)
Call VioWrtTTY with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	length of string
		DWORD	pointer to character string to be written to screen
Return: AX = error code (00h, 74h, 1B4h) (see #0268)
Notes:	write wraps at end of line and terminates if it reaches end of screen
	in ANSI mode, ANSI control sequences are interpreted, and this func is
	  not required to be reentrant; in non-ANSI mode, the function is
	  reentrant and may be called from within an MS-DOS function call

(Table 0273)
Call VioGetANSI with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to WORD which will be set to 00h if ANSI is off
			or 01h if ANSI is on
Return: AX = error code (00h, 74h, 1B4h) (see #0268)
SeeAlso: #0274

(Table 0274)
Call VioSetANSI with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to WORD indicating new state of ANSI
			00h off, 01h on
Return: AX = error code (00h, 74h, 1A4h, 1B4h) (see #0268)
SeeAlso: #0273

(Table 0275)
Call VioGetCurPos with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to WORD to hold current cursor column (0-based)
		DWORD	pointer to WORD to hold current cursor row (0-based)
Return: AX = error code (00h, 74h, 1B4h) (see #0268)
SeeAlso: #0276

(Table 0276)
Call VioSetCurPos with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	cursor column
		WORD	cursor row
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	if either coordinate is invalid, the cursor is not moved
SeeAlso: #0275

(Table 0277)
Call VioGetCurType with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to cursor type record (see #0267)
Return: AX = error code (00h, 74h, 1B4h) (see #0268)
SeeAlso: #0278

(Table 0278)
Call VioSetCurType with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to cursor type record (see #0267)
Return: AX = error code (00h, 74h, 1A4h, 1B4h) (see #0268)
SeeAlso: #0279

(Table 0279)
Call VioScrollUp with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to char/attr cell for filling emptied rows
		WORD	number or rows to scroll (FFFFh = clear area)
		WORD	right column of scroll area
		WORD	bottom row of scroll area
		WORD	left column of scroll area
		WORD	top row of scroll area
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
SeeAlso: #0280,INT 10/AH=06h

(Table 0280)
Call VioScrollDn with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to char/attr cell for filling emptied rows
		WORD	number or rows to scroll (FFFFh = clear area)
		WORD	right column of scroll area
		WORD	bottom row of scroll area
		WORD	left column of scroll area
		WORD	top row of scroll area
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
SeeAlso: #0279,INT 10/AH=07h

(Table 0281)
Call VioReadCellStr with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start reading
		WORD	row at which to start reading
		DWORD	pointer to WORD containing length of buffer in bytes
			on return, WORD contains number of bytes actually read
		DWORD	pointer to buffer for cell string
Return: AX = error code (00h, 74h, 166h ,167h, 1B4h) (see #0268)

(Table 0282)
Call VioReadCharStr with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start reading
		WORD	row at which to start reading
		DWORD	pointer to WORD containing length of buffer in bytes
			on return, WORD contains number of bytes actually read
		DWORD	pointer to buffer for character string
Return: AX = error code (00h, 74h, 166h ,167h, 1B4h) (see #0268)

(Table 0283)
Call VioWrtCellStr with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start writing
		WORD	row at which to start writing
		WORD	length of cell string in bytes
		DWORD	pointer to cell string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	write wraps at end of line and terminates if it reaches end of screen

(Table 0284)
Call VioWrtCharStr with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start writing
		WORD	row at which to start writing
		WORD	length of character string
		DWORD	pointer to character string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	write wraps at end of line and terminates if it reaches end of screen

(Table 0285)
Call VioWrtCharStrAttr with:
	STACK:	WORD	VIO handle (must be 00h)
		DWORD	pointer to attribute to be applied to each character
		WORD	column at which to start writing
		WORD	row at which to start writing
		WORD	length of character string
		DWORD	pointer to character string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	write wraps at end of line and terminates if it reaches end of screen

(Table 0286)
Call VioWrtNAttr with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start writing
		WORD	row at which to start writing
		WORD	number of times to write attribute
		DWORD	pointer to display attribute to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	write wraps at end of line and terminates if it reaches end of screen

(Table 0287)
Call VioWrtNCell with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start writing
		WORD	row at which to start writing
		WORD	number of times to write cell
		DWORD	pointer to cell to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	write wraps at end of line and terminates if it reaches end of screen

(Table 0288)
Call VioWrtNChar with:
	STACK:	WORD	VIO handle (must be 00h)
		WORD	column at which to start writing
		WORD	row at which to start writing
		WORD	number of times to write character
		DWORD	pointer to character to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0268)
Note:	write wraps at end of line and terminates if it reaches end of screen
--------V-148102-----------------------------
INT 14 - VIDEO FOSSIL - CLOSE VFOSSIL
	AX = 8102h
Return: AX = 1954h
Note:	terminates all operations; after this call, the video FOSSIL may either
	  be removed from memory or reinitialized
SeeAlso: AX=8101h,AX=8103h
--------V-148103-----------------------------
INT 14 - VIDEO FOSSIL - UNINSTALL
	AX = 8103h
Return: AX = 1954h
Note:	this is an extension to the VFOSSIL spec by Bob Hartman's VFOS_IBM
--------K-1482-------------------------------
INT 14 - KEYBOARD FOSSIL
	AH = 82h
SeeAlso: AH=7Eh
--------S-1482-------------------------------
INT 14 - COURIERS.COM - CONFIGURE PORT
	AH = 82h
	AL = port number (1-4)
	BX = speed (bps)
	CX = bit flags
	    bit 0: enable input flow control
	    bit 1: enable output flow control
	    bit 2: use X.PC protocol (not yet implemented)
SeeAlso: AH=00h,AH=8Ch,INT 7A"X.PC"
--------S-1482-------------------------------
INT 14 - COMM-DRV v14.0 - PORT CLEANUP
	AH = 82h
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
Desc:	reset the port to its state before the AH=81h initialization and unhook
	  any interrupts used by the port
SeeAlso: AH=81h"COMM-DRV",AH=83h"COMM-DRV"
----------1483-------------------------------
INT 14 - SYSTEM FOSSIL
	AH = 83h
SeeAlso: AH=7Eh
--------S-1483-------------------------------
INT 14 - COURIERS.COM - START INPUT
	AH = 83h
	ES:BX -> circular input buffer
	CX = length of buffer
		(should be at least 128 bytes if input flow control enabled)
SeeAlso: AH=18h,AH=87h,AH=8Dh,AH=A5h"BAPI"
--------S-1483-------------------------------
INT 14 - COMM-DRV v14.0 - FLUSH COMMUNICATION BUFFERS
	AH = 83h
	DX = port number
	AL = subfunction
	    00h flush input buffer
	    01h flush output buffer
	    02h flush both buffers
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AH=81h"COMM-DRV",AH=84h"COMM-DRV"
--------S-1484-------------------------------
INT 14 - COURIERS.COM - READ CHARACTER
	AH = 84h
Return: ZF set if no characters available
	ZF clear
	   AL = character
	   AH = modem status bits
		bit 7: set on input buffer overflow
SeeAlso: AH=02h,AH=86h,AH=89h
--------S-1484-------------------------------
INT 14 - COMM-DRV v14.0 - SEND PACKET
	AH = 84h
	CX = packet length in bytes
	DX = port number
	ES:DI -> packet to be sent
Return: AH = line status (see #0201)
	    bit 7 set on error
	AL destroyed
SeeAlso: AH=83h"COMM-DRV",AH=85h"COMM-DRV",AH=86h"COMM-DRV"
--------S-1485-------------------------------
INT 14 - COURIERS.COM - FLUSH PENDING INPUT
	AH = 85h
SeeAlso: AH=0Ah,AH=88h"COURIERS"
--------S-1485-------------------------------
INT 14 - COMM-DRV v14.0 - RECEIVE PACKET
	AH = 85h
	CX = length of packet in bytes
	DX = port number
	ES:DI -> buffer for packet
Return: AH = line status (see #0201)
	    bit 7 set on error
	AL destroyed
Note:	this call requires that at least the requested number of bytes are
	  already present in the input buffer, and will fail if there are
	  fewer bytes available
SeeAlso: AH=84h"COMM-DRV",AH=86h"COMM-DRV",AH=8Eh"COMM-DRV"
--------S-1486-------------------------------
INT 14 - COURIERS.COM - START OUTPUT
	AH = 86h
	ES:BX -> output buffer
	CX = length of output buffer
SeeAlso: AH=19h,AH=83h"COURIERS",AH=A4h"BAPI"
--------S-1486-------------------------------
INT 14 - COMM-DRV v14.0 - SET INPUT/OUTPUT TIMEOUTS
	AH = 86h
	BL = maximum clock ticks to wait before signalling error on input func
	BH = maximum clock ticks to wait before signalling error on output
	DX = port number
	SI = input timeout in clock ticks if BL=FFh and BH=FFh
	DI = output timeout in clock ticks if BL=FFh and BH=FFh
Return: AH bit 7 set on error
	AH bit 7 clear if successful
Note:	functions 02h, 85h, and 8Eh will wait for the input timeout before
	  returning an error when no data is available; functions 01h and 84h
	  will wait for the output timeout before returning an error if there
	  is no space to output the data
SeeAlso: AH=01h,AH=02h,AH=84h"COMM-DRV",AH=85h"COMM-DRV",AH=8Eh"COMM-DRV"
--------S-1487-------------------------------
INT 14 - COURIERS.COM - OUTPUT STATUS
	AH = 87h
Return: AX = number of unsent characters
SeeAlso: AX=88h"COURIERS"
--------S-1487-------------------------------
INT 14 - COMM-DRV v14.0 - TURN ON DTR
	AH = 87h
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=88h"COMM-DRV",AH=89h"COMM-DRV"
--------S-1488-------------------------------
INT 14 - COURIERS.COM - ABORT OUTPUT
	AH = 88h
SeeAlso: AH=09h,AH=85h"COURIERS"
--------S-1488-------------------------------
INT 14 - COMM-DRV v14.0 - TURN OFF DTR
	AH = 88h
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
--------S-1489-------------------------------
INT 14 - COURIERS.COM - SEND SINGLE CHARACTER
	AH = 89h
	CL = character to send
SeeAlso: AH=01h,AH=84h"COURIERS"
--------S-1489-------------------------------
INT 14 - COMM-DRV v14.0 - TURN ON RTS
	AH = 89h
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
--------S-148A-------------------------------
INT 14 - COURIERS.COM - SEND BREAK
	AH = 8Ah
SeeAlso: AH=89h"COURIERS",AH=FAh
--------S-148A-------------------------------
INT 14 - COMM-DRV v14.0 - TURN OFF RTS
	AH = 8Ah
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=88h"COMM-DRV",AH=89h"COMM-DRV"
--------S-148B-------------------------------
INT 14 - COMM-DRV v14.0 - SET USER INTERRUPT ROUTINE
	AH = 8Bh
	CX = bitmask of interrupt to process
	    00h = deinstall
	BX:DI -> DWORD containing address of function to be called
Return: AH bit 7 clear if successful
	AH bit 7 set on error
--------S-148C-------------------------------
INT 14 - COURIERS.COM - SET SPEED
	AH = 8Ch
	BX = speed in bps
SeeAlso: AH=00h,AH=82h"COURIERS"
--------S-148C-------------------------------
INT 14 - COMM-DRV v14.0 - READ UART REGISTER
	AH = 8Ch
	AL = register offset
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
	    AL = contents of UART register
SeeAlso: AH=8Dh"COMM-DRV"
--------S-148D-------------------------------
INT 14 - COURIERS.COM - DECONFIGURE PORT
	AH = 8Dh
SeeAlso: AH=82h"COURIERS"
--------S-148D-------------------------------
INT 14 - COMM-DRV v14.0 - WRITE UART REGISTER
	AH = 8Dh
	AL = register offset
	BL = new value for UART register
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AH=8Ch"COMM-DRV"
--------S-148E-------------------------------
INT 14 - COMM-DRV v14.0 - READ PACKET NONDESTRUCTIVELY
	AH = 8Eh
	CX = length of packet in bytes
	DX = port number
	ES:DI -> buffer for packet
Return: AH = line status (see #0201)
	    bit 7 set on error (see AX=8000h"COMM-DRV")
	AL destroyed
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
Desc:	retrieve a packet from the input buffer without removing it from the
	  buffer
Note:	this call requires that at least the requested number of bytes are
	  already present in the input buffer, and will fail if there are
	  fewer bytes available
SeeAlso: AX=8000h"COMM-DRV",AH=84h"COMM-DRV",AH=85h"COMM-DRV",AH=86h"COMM-DRV"
--------S-14A0-------------------------------
INT 14 - 3com BAPI SERIAL I/O - CONNECT TO PORT
	AH = A0h
	ES:BX -> ASCIZ internet host name
	CX = length of name
Return: AH = return code (00h,04h-06h,08h,0Ah-0Ch) (see #0289)
	CL = session ID
Program: the Bridge Application Program Interface is a set of functions which
	  makes many of the details of LAN communications transparent
Note:	Novell TELAPI.EXE returns AH=09h (not supported) and CL=00h
SeeAlso: AH=A1h"BAPI",AH=A2h"BAPI",AH=A5h"BAPI",AX=AF00h

(Table 0289)
Values for 3com BAPI return code:
 00h	successful
 01h	no characters written
 02h	no characters read
 03h	no such session
 04h	clearinghouse name not found
 05h	no response from host
 06h	no more sessions available
 07h	session aborted
 08h	invalid clearinghouse name
 09h	not supported
 0Ah	internal (general) network error
 0Bh	out of memory
 0Ch	invalid IP address
--------S-14A0--CXFFFF-----------------------
INT 14 - Interconnections Inc. TES - INSTALLATION CHECK/STATUS REPORT
	AH = A0h
	CX = FFFFh
Return: CF clear if successful
	    AX = 5445h ('TE')
	    CX <> FFFFh
	    DX = port number
	CF set on error
Program: TES is a network serial port emulation program
SeeAlso: AH=A1h"TES"
--------S-14A1-------------------------------
INT 14 - 3com BAPI SERIAL I/O - DISCONNECT FROM PORT
	AH = A1h
	DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #0289)
	AL destroyed (Novell TELAPI.EXE)
SeeAlso: AH=A0h"BAPI"
--------S-14A1-------------------------------
INT 14 - Interconnections Inc. TES - GET LIST OF SESSIONS WITH STATUS
	AH = A1h
Return: CX = number of active sessions
	ES:SI -> status array (see #0290)
SeeAlso: AH=A2h"TES",AH=A3h"TES"

Format of Interconnections TES status array entry:
Offset	Size	Description	(Table 0290)
 00h	BYTE	status
 01h	WORD	offset of name
--------S-14A2-------------------------------
INT 14 - 3com BAPI SERIAL I/O - WRITE CHARACTER
	AH = A2h
	AL = character
	DH = session ID (00h for external session managment)
Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #0289)
SeeAlso: AH=A0h"BAPI",AH=A3h"BAPI",AH=A4h"BAPI"
--------S-14A2-------------------------------
INT 14 - Interconnections Inc. TES - GET LIST OF SERVER NAMES
	AH = A2h
Return: CX = number of servers
	ES:SI -> array of offsets from ES for server names
SeeAlso: AH=A1h"TES"
--------S-14A3-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ CHARACTER
	AH = A3h
	DH = session ID (00h for external session managment)
Return: AH = return code (00h,02h,03h,07h,0Ah,0Bh) (see #0289)
	AL = character read or 00h if none available
SeeAlso: AH=A0h"BAPI",AH=A2h"BAPI",AH=A5h"BAPI",AH=A7h"BAPI"
--------S-14A3-------------------------------
INT 14 - Interconnections Inc. TES - START A NEW SESSION
	AH = A3h
	ES:SI -> ???
Return: CF clear if successful
	    AX = 5445h ('TE')
	    CX <> FFFFh
	    DX = port number
	CF set on error
SeeAlso: AH=A1h"TES",AH=A4h"TES",AH=A6h"TES"
--------S-14A4-------------------------------
INT 14 - 3com BAPI SERIAL I/O - WRITE BLOCK
	AH = A4h
	CX = length of buffer in bytes
	DH = session ID (00h for external session managment)
	ES:BX -> buffer containing data
Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #0289)
	CX = number of bytes actually sent
SeeAlso: AH=19h,AH=86h,AH=A0h"BAPI",AH=A5h"BAPI"
--------S-14A4-------------------------------
INT 14 - Interconnections Inc. TES - HOLD CURRENTLY ACTIVE SESSION
	AH = A4h
	???
Return: ???
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A5-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ BLOCK
	AH = A5h
	CX = length of buffer
	DH = session ID (00h for external session managment)
	ES:BX -> buffer for data
Return: AH = return code (00h,02h,03h,07h,0Ah,0Bh) (see #0289)
	CX = number of bytes actually read
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A0h"BAPI",AH=A3h"BAPI",AH=A4h"BAPI"
SeeAlso: AH=A7h"BAPI",AX=FF02h
--------S-14A5-------------------------------
INT 14 - Interconnections Inc. TES - RESUME A SESSION
	AH = A5h
	AL = session number
Return: ???
SeeAlso: AH=A4h"TES",AH=A6h"TES"
--------S-14A6-------------------------------
INT 14 - 3com BAPI SERIAL I/O - SEND SHORT BREAK
	AH = A6h
	DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #0289)
Desc:	generate a short break signal; if data delivery was turned off by the
	  break, wait for the host to turn it on again
SeeAlso: AH=1Ah,AH=8Ah,AH=FAh,AH=A0h"BAPI"
--------S-14A6-------------------------------
INT 14 - Interconnections Inc. TES - DROP A SESSION
	AH = A6h
	AL = session number
Return: AH = status
	    00h successful
	    else error
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A7-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ STATUS
	AH = A7h
	DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #0289)
	CX = number of bytes available for reading
Note:	Novell TELAPI.EXE v4.01 always returns either 0 or 1 bytes available
SeeAlso: AH=A5h"BAPI"
--------S-14A7-------------------------------
INT 14 - Interconnections Inc. TES - SWITCH TO NEXT ACTIVE SESSION
	AH = A7h
	???
Return: ???
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A8-------------------------------
INT 14 - Interconnections Inc. TES - SEND STRING TO COMMAND INTERPRETER
	AH = A8h
	AL = 00h no visible response
	ES:SI -> ASCIZ command
Return: ???
--------N-14A8-------------------------------
INT 14 - Novell TelAPI v4.01 - CONNECTION INFORMATION???
	AH = A8h
	DH = session ID???
	CH = subfunction
	    02h ???
	    0Dh ???
	    0Fh ???
		 10h ???
	    11h ???
	    28h ???
	    else
		Return: AH = 09h (not supported)
Return: AH = return code (see #0289)
	    00h successful
		CL = ??? (0/1/8) (subfunctions 02h,0Dh,0Fh,10h)
		CL = ??? (7Fh/FFh) (subfunction 28h)
		CX = ??? (subfunction 11h)
SeeAlso: AH=A9h"TelAPI"
--------N-14A9-------------------------------
INT 14 - Novell TelAPI v4.01 - CONNECTION CONTROL???
	AH = A9h
	DH = session ID???
	CH = subfunction
	    02h ???
	    0Dh ???
	    0Fh ???
	    10h ???
	    11h ???
	    28h ???
	    else
		Return: AH = 09h (not supported)
	???
Return: AH = return code (see #0289)
	???
SeeAlso: AH=A8h"TelAPI",AH=E4h,INT 6B/AX=0600h
--------V-14AA01-----------------------------
INT 14 - DimVGA v2.0+ - INSTALLATION CHECK
	AX = AA01h
Return: AX = FFFFh if installed, unchanged
	BX = version (v1.5+ only), BH = major, BL = minor (v1.5 = 0105h)
	CX = resident segment (v3.1+)
Program: DimVGA is a public domain screen saver by Menno Pieters
SeeAlso: AX=AA02h,AX=AA03h,AX=AA06h,INT 11/AX=0225h/BX=6900h,INT 12"KEYBUI"
SeeAlso: INT 2D/AL=10h"Burnout Plus",INT 2F/AX=6400h,INT 2F/AH=93h
SeeAlso: INT 2F/AX=C000h"VGAsave",INT 2F/AX=C000h"AD-DOS",INT 2F/AX=C050h
SeeAlso: INT 2F/AX=E300h
Index:	screen saver;DimVGA
--------V-14AA02-----------------------------
INT 14 - DimVGA v2.0+ - SET TIME-OUT (DIMMING/BLANKING) PERIOD
	AX = AA02h
	BX = number of clock ticks
Return: AX = FFFFh
Note:	on screen modes with 256 or less colors DimVGA will dim the screen,
	  when more than 256 colors can be used DimVGA will blank the screen.
SeeAlso: AX=AA01h,AX=AA03h,AX=AA04h,AX=AA06h
Index:	screen saver;DimVGA
--------V-14AA03-----------------------------
INT 14 - DimVGA v2.0+ - SET DIMMING FACTOR
	AX = AA03h
	BX = percentage remaining visible (1-99)
Return: AX = FFFFh
SeeAlso: AX=AA02h,AX=AA05h,AX=AA06h
Index:	screen saver;DimVGA
--------V-14AA04-----------------------------
INT 14 - DimVGA v2.0+ - GET TIME-OUT PERIOD
	AX = AA04h
Return: AX = FFFFh
	BX = current time-out in clock ticks
SeeAlso: AX=AA02h,AX=AA05h,AX=AA0Ah
Index:	screen saver;DimVGA
--------V-14AA05-----------------------------
INT 14 - DimVGA v2.0+ - GET DIMMING FACTOR
	AX = AA05h
Return: AX = FFFFh
	BX = current dimming factor
SeeAlso: AX=AA03h,AX=AA04h,AX=AA0Ah
Index:	screen saver;DimVGA
--------V-14AA06-----------------------------
INT 14 - DimVGA v2.0+ - DISABLE
	AX = AA06h
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA07h,AX=AA0Ah
Index:	screen saver;DimVGA
--------V-14AA07-----------------------------
INT 14 - DimVGA v2.0+ - ENABLE
	AX = AA07h
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA06h,AX=AA0Ah
Index:	screen saver;DimVGA
--------V-14AA08-----------------------------
INT 14 - DimVGA v2.0+ - DIM SCREEN 'MANUALLY'
	AX = AA08h
Return: AX = FFFFh
Note:	this function will dim the screen immediately, even if DimVGA is
	  currently disabled
SeeAlso: AX=AA01h,AX=AA02h,AX=AA09h
Index:	screen saver;DimVGA
--------V-14AA09-----------------------------
INT 14 - DimVGA v2.0+ - UNDIM SCREEN 'MANUALLY'
	AX = AA09h
Return: AX = FFFFh
Note:	this function will undim the screen immediately, even if DimVGA is
	  currently disabled
SeeAlso: AX=AA01h,AX=AA08h
Index:	screen saver;DimVGA
--------V-14AA0A-----------------------------
INT 14 - DimVGA v2.0+ - CHECK WHETHER ENABLED
	AX = AA0Ah
Return: AX = FFFFh
	BX = current state (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA06h,AX=AA07h
Index:	screen saver;DimVGA
--------V-14AA0B-----------------------------
INT 14 - DimVGA v2.1+ - SET HOTKEY
	AX = AA0Bh
	BH = shift state (see #0291)
	BL = keyboard scancode
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA0Ch
Index:	screen saver;DimVGA

Bitfields for DimVGA hotkey shift state:
Bit(s)	Description	(Table 0291)
 7-4	unused
 3	Alt key pressed
 2	Ctrl key pressed
 1	Left shift key pressed
 0	Right shift key pressed
--------V-14AA0C-----------------------------
INT 14 - DimVGA v2.1+ - GET HOTKEY
	AX = AA0Ch
Return: AX = FFFFh
	BH = shift state (see #0291)
	BL = keyboard scancode
SeeAlso: AX=AA01h,AX=AA0Bh
Index:	screen saver;DimVGA
--------V-14AA0D-----------------------------
INT 14 - DimVGA v3.0+ - SET MOUSE CHECK STATUS
	AX = AA0Dh
	BX = new mouse check status
	    0000h mouse checking off
	    0001h mouse checking on
Return: AX = FFFFh
Note:	before switching mouse checking on, a mouse driver should be
	  found in memory. If no mouse driver is found, mouse checking
	  should be switched off (resident DimVGA does not check by itself).
SeeAlso: AX=AA01h,AX=AA0Eh
Index:	screen saver;DimVGA
--------V-14AA0E-----------------------------
INT 14 - DimVGA v3.0+ - GET MOUSE CHECK STATUS
	AX = AA0Eh
Return: BX = mouse check status (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA0Dh
Index:	screen saver;DimVGA
--------V-14AA0F-----------------------------
INT 14 - DimVGA v3.4 - SET LOCKING STATUS
	AX = AA0Fh
	BX = locking status
	    0000h disabled
	    0001h enabled
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA0Dh,AX=AA10h
Index:	screen saver;DimVGA
--------V-14AA10-----------------------------
INT 14 - DimVGA v3.4 - GET MOUSE CHECK STATUS
	AX = AA10h
Return: BX = locking status (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA0Dh,AX=AA0Fh
Index:	screen saver;DimVGA
--------S-14AF00BXAAAA-----------------------
INT 14 - 3com BAPI SERIAL I/O - INSTALLATION CHECK
	AX = AF00h
	BX = AAAAh
Return: AX = AF01h if installed
	    BH = protocol type (if BX=AAAAh on entry)
		01h NetManage TCP/IP
	    BL = version for protocol type (if BX=AAAAh on entry)
Note:	early versions of the BAPI and the ROM BIOS simply destroy AX; this
	  behavior is used to determine whether the newer functions (AH=B0h,
	  AH=B1h,etc) are available
SeeAlso: AH=A0h"BAPI"
--------S-14B0-------------------------------
INT 14 - 3com BAPI SERIAL I/O - EN/DISABLE "ENTER COMMAND MODE" (ECM) CHARACTER
	AH = B0h
	AL = new state (00h disabled, 01h enabled)
Return: AH = return code (00h,07h,0Ah) (see #0289)
Note:	disabling the ECM character allows applications to send data which
	  includes the ECM character
SeeAlso: AX=AF00h"BAPI",AH=B1h,AH=B2h
--------S-14B1-------------------------------
INT 14 - 3com BAPI SERIAL I/O - ENTER COMMAND MODE
	AH = B1h
Return: AH = return code (00h,07h,0Ah) (see #0289)
Desc:	provide a means for the application or terminal emulator to perform
	  the same action normally caused by the ECM character
SeeAlso: AH=B0h,AH=B2h
--------S-14B2-------------------------------
INT 14 - 3com BAPI SERIAL I/O - GET ECM WATCH STATE
	AH = B2h
Return: AH = return code (00h,07h,0Ah) (see #0289)
	AL = watch flag (00h disabled, 01h enabled)
Desc:	determine whether the ECM character is enabled
SeeAlso: AH=B0h,AH=B1h
--------S-14B3-------------------------------
INT 14 - 3com BAPI SERIAL I/O - GET/SET CONFIGURATION INFO
	AH = B3h
	AL = direction (00h get, 01h set)
	DH = session ID (00h for external session managment)
	DL = configuration item (00h = end-of-line mapping)
	CX = new configuration item value (if AL=01h)
	    ---if DL=00h---
	    CH = application EOL type (app to Telnet client)
		01h application will send lone CR
		02h application will send CR-? pair
		 CL = driver EOL type (Telnet client to Telnet server)
		01h driver should send CR-NUL pair
		02h driver should send CR-LF pair
Return: AH = return code (00h,03h,09h-0Bh) (see #0289)
	---if AL=00h---
	CX = configuration item value (see above)
SeeAlso: AH=B2h
--------N-14E0-------------------------------
INT 14 - TelAPI - ???
	AH = E0h
	BX = ???
	CX:DX = ???
	DS:DI -> ???
	ES:SI -> ???
Return: AX = status (0000h,FF37h,etc.)
	ES:SI -> ??? if ???
	???
SeeAlso: AH=ECh,AX=FF00h
--------S-14E000-----------------------------
INT 14 - MX5 Extended FOSSIL - GET MNP STATUS BLOCK
	AX = E000h
	DX = port number (0-3)
Return: ES:BX -> status block (see #0292)
Program: MX5 is a FOSSIL driver by MagicSoft which emulates MNP Level 5, and
	  ships with the MTEZ terminal program as MTEMNP.DRV (a TSR despite
	  the .DRV extension)
SeeAlso: AX=E006h

Format of MX5 Extended FOSSIL status block:
Offset	Size	Description	(Table 0292)
 00h	BYTE	flag: active (00h no, 01h yes)
 01h	BYTE	MNP level (2,4,5)
 02h	BYTE	series ID from remote MNP
 03h	DWORD	total packets transmitted
 07h	DWORD	duplicate packets transmitted
 0Bh	DWORD	maximum speed
 0Fh	DWORD	total packets received
 13h	DWORD	duplicate packets received
 17h	DWORD	maximum speed
--------S-14E001-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP LEVEL
	AX = E001h
	BH = function
	    00h get MNP level
	    01h set MNP level
		BL = new level (00h none, 02h/04h/05h MNP level N)
	DX = port number (0-3)
Return: BL = MNP level
SeeAlso: AX=E002h,AX=E003h,AX=E004h,AX=E006h
--------S-14E002-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP ANSWER/ORIGINATE MODE
	AX = E002h
	BH = function
	    00h get answer/originate mode
	    01h set mode
		BL = new mode (00h originate [default], 01h answer)
	DX = port number (0-3)
Return: BL = answer/originate mode
SeeAlso: AX=E001h,AX=E003h,AX=E006h
--------S-14E003-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP WAIT TICKS
	AX = E003h
	BH = function
	    00h get wait ticks
	    01h set wait ticks
		BL = MNP wait ticks (default 0Eh)
	DX = port number (0-3)
Return: BL = wait ticks
SeeAlso: AX=E001h,AX=E002h,AX=E006h
--------S-14E004-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP CONNECT SOUND LEVEL
	AX = E004h
	BH = function
	    00h get sound level
	    01h set sound level
		BL = new sound level (00h off, 01h on [default])
	DX = port number
Return: BL = sound state
Desc:	specify whether MX5 should generate beeps after an MNP connection
	  (three high beeps if successful, high then low on connection failure)
SeeAlso: AX=E002h,AX=E006h
--------S-14E005-----------------------------
INT 14 - MX5 Extended FOSSIL - UNINSTALL
	AX = E005h
Return: BX = segment of MX5's memory block or 0000h on failure
Note:	caller must free the returned memory block to complete the uninstall
SeeAlso: AX=E006h
--------S-14E006BX0000-----------------------
INT 14 - MX5 Extended FOSSIL - INSTALLATION CHECK
	AX = E006h
	BX = 0000h
Return: BX = 4D58h ('MX') if installed
		 AH = major version
	    AL = minor version
SeeAlso: AX=E000h,AX=E001h,AX=E005h,AX=E007h
--------S-14E007-----------------------------
INT 14 - MX5 Extended FOSSIL - WAIT SPECIFIED NUMBER OF TICKS
	AX = E007h
	CX = number of ticks to wait
Return: nothing
SeeAlso: AX=E006h
--------N-14E1-------------------------------
INT 14 - TelAPI - ???
	AH = E1h
	BX = connection ID
	???
Return: AX = status (0000h,FFF7h,maybe others)
	???
SeeAlso: AH=E6h,AX=FF00h
--------N-14E2-------------------------------
INT 14 - TelAPI - BUFFERED READ
	AH = E2h
	BX = connection ID
	CX = length of buffer in bytes
	ES:SI -> buffer for data
Return: AX = number of characters actually read??? (negative on error)
SeeAlso: AH=E6h,AX=FF00h,INT 6B/AH=01h
--------N-14E3-------------------------------
INT 14 - TelAPI - BUFFERED WRITE
	AH = E3h
	BX = connection ID
	CX = length of buffer in bytes
	ES:SI -> buffer containing data
Return: AX = number of characters actually written??? (negative on error)
SeeAlso: AH=07h"TelAPI",AH=E6h,AX=FF00h,INT 6B/AH=00h
--------N-14E4-------------------------------
INT 14 - TelAPI - CONNECTION CONTROL???
	AH = E4h
	BX = connection ID
	CX = ???
	ES:SI -> 10-byte buffer containing ???
Return: ???
SeeAlso: AH=A9h,AH=E6h,AX=FF00h,INT 6B/AX=0600h
--------N-14E5-------------------------------
INT 14 - TelAPI - ???
	AH = E5h
Return: AX = status???
SeeAlso: AH=E6h,AX=FF00h
--------N-14E6-------------------------------
INT 14 - TelAPI - ???
	AH = E6h
Return: AX = status???
Notes:	TelAPI also supports the NASI/NACS and NCSI APIs on INT 6B
	this function invokes AH=E5h internally
SeeAlso: AX=FF00h,INT 6B/AH=00h,INT 6B/AH=10h
--------N-14E7-------------------------------
INT 14 - TelAPI - GET ???
	AH = E7h
	ES:SI -> 20-byte buffer for ???
Return: AX = 0000h (successful)
	ES:SI buffer filled
SeeAlso: AX=FF00h
--------N-14E8-------------------------------
INT 14 - TelAPI - SET ???
	AH = E8h
	BX = connection ID
	CL = new value for ???
	DX = ??? (ignored by Novell TELAPI v4.01)
Return: AX = status (0000h,FFFFh)
SeeAlso: AX=FF00h
--------N-14E9-------------------------------
INT 14 - TelAPI - ???
	AH = E9h
	DX = ???
Return: ???
SeeAlso: AX=FF00h
--------N-14EA-------------------------------
INT 14 - TelAPI - GET CONNECTION INFO???
	AH = EAh
	BX = connection ID
	ES:SI -> buffer for info???
Return: AX = status (0000h,FFFFh,etc.)
SeeAlso: AX=FF00h
--------N-14EB-------------------------------
INT 14 - TelAPI - GET ???
	AH = EBh
	ES:SI -> buffer for ???
Return: ES:SI buffer filled
SeeAlso: AX=FF00h
--------N-14EC-------------------------------
INT 14 - TelAPI - ???
	AH = ECh
	BX = ???
	CX:DX = ???
	DS:DI -> ???
	ES:SI -> ???
Return: AX = status (0000h,FF37h,etc.)
	ES:SI -> ??? if ???
	???
Note:	this function is not supported by the Microdyne TelAPI v3.7
SeeAlso: AH=E0h"TelAPI",AX=FF00h
--------N-14ED-------------------------------
INT 14 - TelAPI - ???
	AH = EDh
	BX = connection ID
Return: AX = status (0000h,FFFFh,etc.)
Note:	this function is not supported by the Microdyne TelAPI v3.7
SeeAlso: AX=FF00h
--------a-14F0F0-----------------------------
INT 14 - ASAP v1.0 - ???
	AX = F0F0h
	DX = ???
	???
Return: ???
Program: ASAP (Automatic Screen Access Program) is a shareware screen reader by
	  MicroTalk
SeeAlso: AX=F0F1h
--------a-14F0F1DX0000-----------------------
INT 14 - ASAP v1.0 - INSTALLATION CHECK
	AX = F0F1h
	DX = 0000h
Return: DX = segment of resident code
	    0000h if not installed
Program: ASAP (Automatic Screen Access Program) is a shareware screen reader by
	  MicroTalk
SeeAlso: AX=F0F0h,INT 10/AX=3800h
--------S-14F4FF-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - INSTALLATION CHECK
	AX = F4FFh
	DX = port (00h-03h)
Return: CF clear if present
	    AX = 0000h
	CF set if not present
	    AX <> 0000h
SeeAlso: AH=36h"ComShare",AH=F9h,AH=FCh
--------S-14F9-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - REGAIN CONTROL
	AH = F9h
	DX = port (00h-03h)
SeeAlso: AX=F4FFh
--------S-14FA-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SEND BREAK
	AH = FAh
	DX = port (00h-03h)
SeeAlso: AH=07h"MBBIOS",AH=1Ah,AH=8Ah
--------S-14FB-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET OUTGOING MODEM SIGNALS
	AH = FBh
	AL = modem control register (see #0231 at AH=05h)
	DX = port (00h-03h)
SeeAlso: AH=05h"SERIAL"
--------S-14FC-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - READ CHARACTER, NO WAIT
	AH = FCh
	DX = port (00h-03h)
Return: AH = RS232 status bits (see #0201 at AH=03h)
	AL = character
SeeAlso: AH=02h,AH=0Ch,AX=FF02h
--------S-14FD02-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - READ STATUS
	AX = FD02h
Return: CX = number of characters available
--------N-14FF00-----------------------------
INT 14 - TelAPI - INSTALLATION CHECK
	AX = FF00h
Return: AL = FFh if installed
	AH = 00h for Novell TELAPI.EXE
SeeAlso: AH=E6h,AX=F4FFh
--------S-14FF01-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET SEND BUFFER
	AX = FF01h
	CX = length of buffer (0000h to cancel buffer assignment)
	DX = port (00h-03h)
	ES:BX -> send buffer
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A5h"BAPI",AH=FCh,AX=FF02h
--------S-14FF02-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET RECEIVE BUFFER
	AX = FF02h
	CX = length of buffer (0000h to cancel buffer assignment)
	DX = port (00h-03h)
	ES:BX -> receive buffer
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A5h"BAPI",AH=FCh,AX=FF03h
--------S-14FFF8-----------------------------
INT 14 - COMM-DRV v14.0 - SET BAUD RATE DIVISOR
	AX = FFF8h
	BX = card type (sub-device number)
	CX = new baudrate divisor
	DX = index to baud rate
Return: AH bit 7 set on error
	AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV"
--------S-14FFFB-----------------------------
INT 14 - COMM-DRV v14.0 - GET HIGHEST ALLOWED PORT NUMBER
	AX = FFFBh
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
	    BX = highest port number
--------S-14FFFC-----------------------------
INT 14 - COMM-DRV v14.0 - GET INT 14 FLAGS
	AX = FFFCh
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
	    BX = flags (see #0293)
SeeAlso: AX=FFFDh

Bitfields for INT 14h flags:
Bit(s)	Description	(Table 0293)
 0	port active for INT 14h
 1	interface behaving like a FOSSIL driver
--------S-14FFFD-----------------------------
INT 14 - COMM-DRV v14.0 - SET INT 14 FLAGS
	AX = FFFDh
	BX = flags (see #0293)
	DX = port number
Return: AH bit 7 set on error
	AH bit 7 clear if successful
SeeAlso: AX=FFFCh
--------S-14FFFE-----------------------------
INT 14 - COMM-DRV v14.0 - RESTORE INT 14 VECTOR TO ORIGINAL
	AX = FFFEh
Return: AH bit 7 set on error
	AH bit 7 clear if successful
--------S-14FFFF-----------------------------
INT 14 - COMM-DRV v14.0 - GET INT 14 INFORMATION AREA
	AX = FFFFh
	BX:SI -> DWORD buffer for address of information area (see #0294)
		  (initialized to zeros)
Return: BX:SI buffer filled with nonzero value if installed
Program: COMM-DRV is a universal serial communications driver by Willies'
	  Computer Software Company, which supports standard INT 14 and
	  FOSSIL calls as well as its own interfaces
Index:	installation check;COMM-DRV

Format of COMM-DRV information area:
Offset	Size	Description	(Table 0294)
 00h  8 BYTEs	signature "COMM-DRV"
 08h  2 BYTEs	00h,00h
 0Ah	DWORD	-> direct address mapping table
 0Eh	DWORD	previous INT 14 vector
--------t-15---------------------------------
INT 15 - Microsoft TSR Specification
	No additional information available at this time.
--------B-1500-------------------------------
INT 15 - CASSETTE - TURN ON TAPE DRIVE'S MOTOR (PC and PCjr only)
	AH = 00h
Return: CF set on error
	    AH = 86h no cassette present
	CF clear if successful
SeeAlso: AH=01h"CASSETTE"
--------M-1500-------------------------------
INT 15 - Amstrad PC1512 - GET AND RESET MOUSE COUNTS
	AH = 00h
Return: CX = signed X count
	DX = signed Y count
--------O-1500-------------------------------
INT 15 - VMiX v2+ - INSTALLATION CHECK
	AH = 00h
Return: DX = 0798h if installed
	    AX = version (AH = major, AL = minor)
--------T-1500-------------------------------
INT 15 - MultiDOS Plus - GIVE UP TIME SLICE
	AH = 00h
Note:	if issued by the highest-priority task while MultiDOS is using
	  priority-based rather than round-robin scheduling, control will be
	  returned to the caller immediately
SeeAlso: AH=03h"MultiDOS",AX=1000h
--------B-1501-------------------------------
INT 15 - CASSETTE - TURN OFF TAPE DRIVE'S MOTOR (PC and PCjr only)
	AH = 01h
Return: CF set on error
	    AH = 86h no cassette present
	CF clear if successful
SeeAlso: AH=00h"CASSETTE"
--------b-1501-------------------------------
INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM
	AH = 01h
	AL = NVRAM location (00h to 3Fh) (see #0295)
	BL = NVRAM data value
Return: AH = return code
	    00h OK
	    01h address bad
	    02h write error
SeeAlso: AH=02h"Amstrad"

Format of Amstrad NVRAM:
Offset	Size	Description	(Table 0295)
 00h	BYTE	time of day: seconds
 01h	BYTE	alarm time: seconds
 02h	BYTE	time of day: minutes
 03h	BYTE	alarm time: minutes
 04h	BYTE	time of day: hours
 05h	BYTE	alarm time: hours
 06h	BYTE	day of week, 1 = Sunday
 07h	BYTE	day of month
 08h	BYTE	month
 09h	BYTE	year mod 100
 0Ah	BYTE	RTC status register A (see #0296)
 0Bh	BYTE	RTC status register B (see #0297)
 0Ch	BYTE	RTC status register C (read-only) (see #0298)
 0Dh	BYTE	RTC status register D
		bit 7: battery good
 0Eh  6 BYTEs	time and date machine last used
 14h	BYTE	user RAM checksum
 15h	WORD	Enter key scancode/ASCII code
 17h	WORD	Forward delete key scancode/ASCII code
 19h	WORD	Joystick fire button 1 scancode/ASCII code
 1Bh	WORD	Joystick fire button 2 scancode/ASCII code
 1Dh	WORD	mouse button 1 scancode/ASCII code
 1Fh	WORD	mouse button 2 scancode/ASCII code
 21h	BYTE	mouse X scaling factor
 22h	BYTE	mouse Y scaling factor
 23h	BYTE	initial VDU mode and drive count
 24h	BYTE	initial VDU character attribute
 25h	BYTE	size of RAM disk in 2K blocks
 26h	BYTE	initial system UART setup byte
 27h	BYTE	initial external UART setup byte
 28h 24 BYTEs	available for user application
Note:	bytes 00h-0Dh are the same on the IBM AT as they are used/updated by
	  the clock chip

Bitfields for RTC status register A:
Bit(s)	Description	(Table 0296)
 7	set if date/time being updated
 6-4	time base speed, default 010 = 32768 Hz
 3-0	interrupt rate selection, default 0110 = 1024 Hz

Bitfields for RTC status register B:
Bit(s)	Description	(Table 0297)
 7	clear if normal update, set if abort update
 6	periodic interrupt enable
 5	alarm interrupt enable
 4	update end interrupt enable
 3	square wave enable
 2	date mode (clear = BCD, set = binary)
 1	24-hour format
 0	daylight saving time enable

Bitfields for RTC status register C:
Bit(s)	Description	(Table 0298)
 7	IRQF flag
 6	PF flag
 5	AF flag
 4	UF flag
--------O-1501-------------------------------
INT 15 - VMiX - "sys_chanreq" - I/O CHANNEL OBJECT MANAGER
	AH = 01h
	STACK:	WORD	object ID of requestor
		DWORD	pointer to ASCIZ name of requested method
			"assign" assign channel to object
			"deassign" deassign channel
			"cursor" set cursor on/off
			"init" initialize comm port
			"open" open I/O channel
			"position" set cursor position
			"receive" get buffered packet from comm port
			"send" send buffered packet to comm port
			"vio" set current virtual I/O to specified channel
			"window" make window at cursor position
		---if "assign"---
		 WORD	object UID
		 WORD	caller UID/PID
		 DWORD	CSL with port
		---if "deassign"---
		 WORD	channel ID
		---if "cursor"---
		 WORD	channel ID (must be a SRCSINK)
		 WORD	new state (0000h off, 0001h on)
		---if "init"---
		 WORD	channel ID (must be a SRCSINK)
		 WORD	comm port number (00h-03h)
		 WORD	UART init code
		---if "open"---
		 WORD	channel ID
		---if "position"---
		 WORD	channel ID (must be a SRCSINK)
		 WORD	position (high byte = row, low byte = column)
		---if "receive"---
		 DWORD	pointer to buffer
		---if "send"---
		 WORD	length of buffer
		 DWORD	pointer to buffer
		---if "vio"---
		 WORD	channel ID (must be a SRCSINK)
		---if "window"---
		 WORD	top left (high byte = row, low byte = column)
		 WORD	bottom right (high byte = row, low byte = column)
Return: DX:AX -> IRP structure or 0000h:0000h
SeeAlso: AH=00h"VMiX",AH=02h"VMiX"
--------T-1501-------------------------------
INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE
	AH = 01h
	AL = semaphore number (00h-3Fh)
Return: AH = status
	    00h successful
	    02h invalid semaphore number
Notes:	if the semaphore is not owned, ownership is assigned to the calling
	  task and the call returns immediately
	if the semaphore is already owned by another task, the calling task
	  is placed on a queue for the semaphore and suspended until it can
	  become owner of the semaphore
	semaphore 0 is used internally by MultiDOS to synchronize DOS access
SeeAlso: AH=02h"MultiDOS",AH=10h"MultiDOS",AH=1Bh"MultiDOS"
--------B-1502-------------------------------
INT 15 - CASSETTE - READ DATA (PC and PCjr only)
	AH = 02h
	CX = number of bytes to read
	ES:BX -> buffer
Return: CF clear if successful
	    DX = number of bytes read
	    ES:BX -> byte following last byte read
	CF set on error
	AH = status (see #0299)
SeeAlso: AH=00h"CASSETTE",AH=03h"CASSETTE"

(Table 0299)
Values for Cassette status:
 00h	successful
 01h	CRC error
 02h	bad tape signals
 04h	no data
 80h	invalid command
 86h	no cassette present
--------b-1502-------------------------------
INT 15 - Amstrad PC1512 - READ DATA FROM NON-VOLATILE RAM
	AH = 02h
	AL = NVRAM location (00h to 3Fh)
Return: AH = return code
	    00h OK
	    01h address bad
	    02h checksum error
	AL = NVRAM data value
SeeAlso: AH=01h"Amstrad"
--------O-1502-------------------------------
INT 15 - VMiX - "sys_memreq" - MEMORY OBJECT MANAGER
	AH = 02h
	STACK:	WORD	object ID of requestor
		DWORD	pointer to ASCIZ name of requested method
			"assign" allocate low memory block
			"assign extended" allocate extended memory pages
			"assign gdt" allocate GDT selector
			"paged" allocate low paged memory
			"paged extended" alllocate extended memory pages
			"deassign" free memory block
			"deassign gdt" free GDT selector
			"getvpage" get physical address for virtual page
			"setvpage" set physical address for virtual page
			"info" get VMiX memory usage info block
			"move" move contents of 32-bit memory
			"newmcb" make new DOS memory control block
			"owner" get process ID of MCB or PSP owner
			"umb" allocate upper memory block
			"video" toggle system use of vidoe memory and get stat
		---if "assign"---
		 WORD	number of objects
		 WORD	size in bytes (multiple of 512 bytes)
		---if "assign extended"---
		 WORD	number of objects
		 WORD	size in bytes (multiple of 4K)
		---if "assign gdt"---
		 WORD	access type (low byte)
		 WORD	segment size in paragraphs
		 DWORD	pointer to start of physical segment
		---if "paged"---
		 WORD	number of 512-byte pages
		---if "paged extended"
		 WORD	number of 4K pages
		---if "deassign"---
		 DWORD	pointer returned by previous allocation call
		---if "deassign gdt"---
		 WORD	GDT selector
		---if "getvpage"---
		 WORD	owner's process ID
		 DWORD	pointer to buffer for page structure (struct VPGE)
		---if "setvpage"---
		 WORD	owner's process ID
		 DWORD	pointer to new page structure (struct VPGE)
		---if "info"---
		 no additional arguments
		---if "move"
		 DWORD	32-bit source address
		 DWORD	32-bit destination address
		 WORD	number of words to move
		---if "newmcb"---
		 DWORD	pointer to new MCB's location
		 WORD	size of memory block
		 DWORD	pointer to ASCIZ name string (max 8 chars)
		---if "owner"---
		 WORD	MCB or PSP segment
		---if "umb"---
		 WORD	size in paragraphs
		---if "video"---
		 no additional arguments
Return: DX:AX -> memory block or VPGE struct or 0000h:0000h
SeeAlso: AH=00h"VMiX",AH=01h"VMiX"
--------T-1502-------------------------------
INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE
	AH = 02h
	AL = semaphore number (00h-3Fh)
Return: AH = status
	    00h successful
	    01h not semaphore owner
	    02h invalid semaphore number
Notes:	if any tasks are waiting for the semaphore, the first task on the wait
	  queue will become the new owner and be reawakened
	do not use within an interrupt handler
SeeAlso: AH=01h"MultiDOS",AH=10h"MultiDOS",AH=1Ch"MultiDOS"
--------B-1503-------------------------------
INT 15 - CASSETTE - WRITE DATA (PC and PCjr only)
	AH = 03h
	CX = number of bytes to write
	ES:BX -> data buffer
Return: CF clear if successful
	    ES:BX -> byte following last byte written
	CF set on error
	AH = status (see #0299)
	CX = 0000h
SeeAlso: AH=00h"CASSETTE",AH=02h"CASSETTE"
--------V-1503-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE WRITE REGISTER
	AH = 03h
	AL = value (I,R,G,B bits)
SeeAlso: AH=04h"Amstrad"
--------O-1503-------------------------------
INT 15 - VMiX - "sys_pinput" - PROMPTED CONSOLE INPUT
	AH = 03h
	STACK:	DWORD	pointer to ASCII prompt
		WORD	field outline character
		WORD	length of input field (max 7Fh)
		DWORD	address of pointer to input buffer
Return: AX = length of input (input buffer is padded with blanks)
SeeAlso: AH=04h"VMiX"
--------T-1503-------------------------------
INT 15 - MultiDOS Plus - SUSPEND TASK FOR INTERVAL
	AH = 03h
	DX = number of time slices to remain suspended
Return: after specified interval has elapsed
Note:	when priority-based scheduling is in use, high-priority tasks should
	  use this function to yield the processor
SeeAlso: AH=00h"MultiDOS",AH=0Ah"MultiDOS"
--------B-1504-------------------------------
INT 15 - SYSTEM - BUILD ABIOS SYSTEM PARAMETER TABLE (PS)
	AH = 04h
	ES:DI -> 32-byte results buffer for System Parameter Table (see #0300)
	DS = segment containing ABIOS RAM extensions (zero if none)
Return: CF clear if successful
	    AH = 00h success
	    ES:DI buffer filled
	    AL destroyed
	CF set on failure
		 AX destroyed
	    AH = 80h/86h if not supported
SeeAlso: AH=05h"ABIOS",AH=C1h

Format of ABIOS System Parameter Table:
Offset	Size	Description	(Table 0300)
 00h	DWORD	FAR address of ABIOS Common Start Routine
 04h	DWORD	FAR address of ABIOS Interrupt Routine
 08h	DWORD	FAR address of ABIOS Time-out Routine
 0Ch	WORD	number of bytes of stack required by this ABIOS implementation
 0Eh 16 BYTEs	reserved
 1Eh	WORD	number of entries in initialization table
--------V-1504-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE READ REGISTER
	AH = 04h
	AL = value (RDSEL1 and RDSEL0)
SeeAlso: AH=03h"Amstrad",05h"Amstrad"
--------O-1504-------------------------------
INT 15 - VMiX - "sys_vprintf" - FORMATTED OUTPUT TO STREAM
	AH = 04h
	STACK:	DWORD	control string
		DWORD	array of arguments
SeeAlso: AH=03h"VMiX"
--------T-1504-------------------------------
INT 15 - MultiDOS Plus - SEND MESSAGE TO ANOTHER TASK
	AH = 04h
	AL = mailbox number (00h-3Fh)
	CX = message length in bytes
	DS:SI -> message
Return: AH = status
	    00h successful
	    01h out of message memory
	    02h invalid mailbox number
Note:	the message is copied into a system buffer; the caller may immediately
	  reuse its buffer
SeeAlso: AH=05h"MultiDOS"
--------B-1505-------------------------------
INT 15 - SYSTEM - BUILD ABIOS INITIALIZATION TABLE (PS)
	AH = 05h
	ES:DI -> results buffer of length 18h * Number_of_Entries (see #0301)
	DS = segment containing ABIOS RAM extensions (zero if none)
Return: CF clear if successful
	    AH = 00h success
	    ES:DI buffer filled
	    AL destroyed
	CF set on failure
		 AX destroyed
	    AH = 80h/86h if not supported
SeeAlso: AH=04h"ABIOS",AH=C1h

Format of one entry of ABIOS Initialization Table:
Offset	Size	Description	(Table 0301)
 00h	WORD	device ID (see #0302)
 02h	WORD	number of Logical IDs
 04h	WORD	Device Block length (zero for ABIOS patch or extension)
 06h	DWORD	-> init routine for Device Block and Function Transfer Table
 0Ah	WORD	request block length
 0Ch	WORD	Function Transfer Table length (zero for a patch)
 0Eh	WORD	Data Pointers length (in Common Data Area)
 10h	BYTE	secondary device ID (hardware level this ABIOS ver supports)
 11h	BYTE	revision (device driver revision level this ABIOS supports)
 12h  6 BYTEs	reserved

(Table 0302)
Values for ABIOS device ID:
 00h	ABIOS internal calls
 01h	floppy disk
 02h	hard disk
 03h	video
 04h	keyboard
 05h	parallel port
 06h	serial port
 07h	system timer
 08h	real-time clock
 09h	system services
 0Ah	NMI
 0Bh	mouse
 0Eh	CMOS RAM
 0Fh	DMA
 10h	Programmable Option Select (POS)
 16h	keyboard password
--------V-1505-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU GRAPHICS BORDER REGISTER
	AH = 05h
	AL = value (I,R,G,B bits)
SeeAlso: AH=04h"Amstrad"
--------O-1505-------------------------------
INT 15 - VMiX - "sys_getpid" - GET PROCESS ID OF CURRENT PROCESS
	AH = 05h
Return: AX = process ID
SeeAlso: AH=06h"VMiX",AH=0Bh"VMiX"
--------T-1505-------------------------------
INT 15 - MultiDOS Plus - CHECK MAILBOX
	AH = 05h
	AL = mailbox number (00h-3Fh)
Return: AH = status
	    00h successful
		DX = length of first message in queue, 0000h if no message
	    02h invalid mailbox number
SeeAlso: AH=04h"MultiDOS",AH=06h"MultiDOS"
--------b-1506-------------------------------
INT 15 - Amstrad PC1512 - GET ROS VERSION NUMBER
	AH = 06h
Return: BX = version number
--------O-1506-------------------------------
INT 15 - VMiX - "sys_getpcb" - GET POINTER TO PROCESS CONTROL BLOCK
	AH = 06h
	STACK:	WORD	process ID
Return: DX:AX -> process control block
SeeAlso: AH=05h"VMiX",AH=07h"VMiX",AH=08h"VMiX"
--------T-1506-------------------------------
INT 15 - MultiDOS Plus - READ MAILBOX
	AH = 06h
	AL = mailbox number (00h-3Fh)
	CX = size of buffer in bytes
	ES:DI -> buffer for message
Return: AH = status
	    00h successful
		CX = number of bytes copied
		DX = actual length of message
	    02h invalid mailbox number
Note:	if the caller's buffer is not large enough, the message is truncated
	  and the remainder is lost
SeeAlso: AH=04h"MultiDOS",AH=05h"MultiDOS"
--------O-1507-------------------------------
INT 15 - VMiX - "sys_getocb" - GET POINTER TO OBJECT CONTROL BLOCK
	AH = 07h
	STACK:	WORD	object type
Return: DX:AX -> object control block
SeeAlso: AH=06h"VMiX",AH=08h"VMiX"
--------T-1507-------------------------------
INT 15 - MultiDOS Plus - SPAWN INTERNAL TASK (CREATE NEW THREAD)
	AH = 07h
	BX:CX = entry point of new task
	DX = stack size in paragraphs
Return: AH = status
	    00h successful
	    01h no free task control blocks
		 02h no free memory for task's stack
Note:	execution returns immediately to calling task
SeeAlso: AH=08h"MultiDOS",AH=09h"MultiDOS",AH=13h"MultiDOS"
--------O-1508-------------------------------
INT 15 - VMiX - "sys_getccb" - GET CHANNEL CONTROL BLOCK
	AH = 08h
	STACK:	WORD	channel ID
Return: DX:AX -> channel control block
SeeAlso: AH=06h"VMiX",AH=07h"VMiX"
--------T-1508-------------------------------
INT 15 - MultiDOS Plus - TERMINATE INTERNAL TASK (KILL THREAD)
	AH = 08h
Return: calling task terminated, so execution never returns to caller
Notes:	an internal task must be terminated with this function rather than a
	  DOS termination function
	task's stack space is returned to parent task's memory pool
SeeAlso: AH=07h"MultiDOS"
--------O-1509-------------------------------
INT 15 - VMiX - "sys_getqueue" - GET ID OF QUEUED ELEMENT
	AH = 09h
	STACK:	WORD	queue ID (0 = process queue, 1 = object, 3 = type)
		WORD	subqueue ID
Return: AX = queue ID
SeeAlso: AH=0Ah"VMiX"
--------T-1509-------------------------------
INT 15 - MultiDOS Plus - CHANGE TASK'S PRIORITY
	AH = 09h
	AL = new priority
Note:	the priority has different meanings depending on whether priority-
	  based or round-robin scheduling is used
SeeAlso: AH=07h"MultiDOS"
--------O-150A-------------------------------
INT 15 - VMiX - "sys_qetqnext" - GET ID OF NEXT QUEUED ELEMENT
	AH = 0Ah
	STACK:	WORD	queue ID (0 = process queue, 1 = object, 3 = type)
		WORD	ID of current element in queue chain
Return: AX = ID of next element
SeeAlso: AH=09h"VMiX",AH=0Fh"VMiX"
--------T-150A-------------------------------
INT 15 - MultiDOS Plus - CHANGE TIME SLICE INTERVAL
	AH = 0Ah
	AL = new interval
	    00h = 55.0 ms (default)
	    80h = 27.5 ms
	    40h = 13.75 ms
	    20h = 6.88 ms
		 10h = 3.44 ms
	    08h = 1.72 ms
SeeAlso: AH=03h"MultiDOS"
--------O-150B-------------------------------
INT 15 - VMiX - "sys_sysreq" - SYSTEM CONFIGURATION MANAGER
	AH = 0Bh
	STACK:	WORD	caller's UID
		DWORD	pointer to ASCIZ name of requested method
			"abort" abort current send/receive on comm port
			"block" start/end critical section
			"close" terminate interrupt-drive comm I/O
			"open" prepare comm port for interrupt-driven I/O
			"delay" set delay timer and wait
			"hibernate" put process to sleep
			"ints" enable/disable interrupt-driven INT 14h
			"length" get current send/receive buffer offsets
			"kswitch" switch stacks
			"numproc" get number of active processes
			"protocol" set protocol function for comm interrupts
			"relocate" set/reset VMiX flag for relocating to himem
			"status" get current open comm port status
			"wake" awaken a process
			"xport" get comm port polled for logins
		---if "abort"---
		 no additional arguments
		---if "block"---
		 WORD	0000h end, 0001h start
		---if "close"---
		 no additional arguments
		---if "open"---
		 WORD	comm port (00h-03h)
		 WORD	BIOS parameter byte (see #0197 at INT 14/AH=00h),
			except bits 7-5: 000 = 19200, 001 = 38400, 011 = 115200
		---if "delay"---
		 WORD	time in seconds
		---if "hibernate"---
		 WORD	process ID
		---if "ints"---
		 WORD	0000h if no, 0001h if yes
		---if "length","numproc","relocate","status","xport"---
		 no additional arguments
		---if "kswitch"---
		 DWORD	pointer to new stack
		---if "protocol"---
		 DWORD	pointer to function (must be in low "assign"ed memory
			when in 386 mode)
		---if "wake"---
		 WORD	process ID
Return: DX:AX -> result or 0000h:0000h
		---if "length"---
		 BYTE	receive offset
		 BYTE	send offset
		---if "kswitch"---
		 DWORD	old stack pointer
		---if "numproc"---
		 WORD	number of active processes
		---if "status"---
		 current open comm port status
		---if "xport"---
		 current comm port being polled for logins
Note:	the "delay" command reportedly disables the keyboard until the delay
	  completes
SeeAlso: AH=05h"VMiX",AH=0Eh"VMiX"
--------T-150B-------------------------------
INT 15 - MultiDOS Plus - FORCE DISPLAY OUTPUT TO PHYSICAL SCREEN MEMORY
	AH = 0Bh
Notes:	sets calling task's screen pointer to actual screen memory; the pointer
	  may be restored with AH=0Ch
	caller's video mode must be same as foreground task's video mode
	any text written while in the background will be saved to the
	  foreground task's virtual screen when it switches to the background
	useful if a background task wants to display a message on the
	  foreground screen
SeeAlso: AH=0Ch"MultiDOS"
--------O-150C-------------------------------
INT 15 - VMiX - "sys_getstack" - GET POINTER TO PROCESS TSS STACK
	AH = 0Ch
	STACK:	WORD	process ID
Return: DX:AX -> TSS stack store
SeeAlso: AH=00"VMiX"
--------T-150C-------------------------------
INT 15 - MultiDOS Plus - RESTORE OLD VIDEO DISPLAY MEMORY
	AH = 0Ch
Note:	restores task's screen pointer saved by AH=0Bh; must not be called
	  unless AH=0Bh has been called first
SeeAlso: AH=0Bh"MultiDOS"
--------O-150D-------------------------------
INT 15 - VMiX - "sys_spawn" - START A CHILD PROCESS JOB SHELL
	AH = 0Dh
	STACK:	DWORD	ASCIZ string starting with requested I/O channel and
			followed by standard VMiX shell command string
Return: AX = process ID or error code "SYS_ERROR"
Note:	the maximum string length is 7Fh characters
SeeAlso: AH=0Eh"VMIX",AH=11h"VMiX",INT 21/AH=4Bh
--------T-150D-------------------------------
INT 15 - MultiDOS Plus - DISABLE MULTITASKING
	AH = 0Dh
Note:	calling task receives all time slices until AH=0Eh is called; this
	  allows time-critical events or nonreentrant code to be processed
SeeAlso: AH=0Eh"MultiDOS",AH=10h"MultiDOS",AX=101Bh,AH=20h"MultiDOS"
--------O-150E-------------------------------
INT 15 - VMiX - "sys_kill" - HARD TERMINATE PROCESS
	AH = 0Eh
	STACK:	WORD	process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=0Bh"VMiX",AH=0Dh"VMIX"
--------T-150E-------------------------------
INT 15 - MultiDOS Plus - ENABLE MULTITASKING
	AH = 0Eh
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AH=20h"MultiDOS"
--------d-150F-------------------------------
INT 15 C - SYSTEM - FORMAT UNIT PERIODIC INTERRUPT (PS ESDI drives only)
	AH = 0Fh
	AL = phase code
	    00h reserved
		 01h surface analysis
	    02h formatting
Return: CF clear if formatting should continue
	CF set if formatting should terminate
Note:	called during ESDI drive formatting after each cylinder is completed
SeeAlso: INT 13/AH=1Ah
--------O-150F-------------------------------
INT 15 - VMiX - "sys_getqkey" - GET KEY FIELD OF QUEUED ELEMENT
	AH = 0Fh
	STACK:	WORD	queue ID (0 = process queue, 1 = object q, 3 = type q)
		WORD	ID of element in queue chain
Return: AX = key
SeeAlso: AH=0Ah"VMiX"
--------T-150F-------------------------------
INT 15 - MultiDOS Plus - EXECUTE A MULTIDOS PLUS COMMAND
	AH = 0Fh
	DS:BX -> ASCIZ command
Return: after command has been processed
Notes:	specified string is executed as if it had been typed at the MultiDOS
	  command prompt
	the task is placed on a queue which MultiDOS examines periodically and
	  is suspended until MultiDOS has processed the command
	all lowercase characters up to the first blank are converted to upper
	  case within the given buffer
--------O-1510-------------------------------
INT 15 - VMiX - "sys_virtual" - EXECUTE CONFORMING FUNCTION IN PROTECTED MODE
	AH = 10h
	STACK:	DWORD	pointer to function
	      N WORDs	function args
Return: AX = function's return value??? (not specified in documentation)
Note:	while the function is executing, the following global descriptors are
	  available:
		20h stack segment
		38h code segment of function
		40h data alias for function's code segment
	  additional GDT descriptors can be allocated using AH=02h with
	  function "assign gdt"
SeeAlso: AH=02h"VMiX",AH=51h"VMiX"
--------T-1510-------------------------------
INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE
	AH = 10h
	AL = semaphore number (00h-3Fh)
Return: AH = status
	    00h semaphore not in use
	    01h semaphore owned by another task
	    02h invalid semaphore number
		 03h semaphore owned by caller
SeeAlso: AH=02h"MultiDOS",AH=0Dh"MultiDOS",AH=1Dh"MultiDOS"
--------Q-151000-----------------------------
INT 15 - TopView - "PAUSE" - GIVE UP CPU TIME
	AX = 1000h
Return: after other processes run
Note:	under DESQview, if the process issuing this call has hooked INT 08h,
	  the current time-slice is set to expire at the next clock tick rather
	  than immediately
SeeAlso: AH=00h"MultiDOS",AX=5305h,INT 21/AH=89h,INT 21/AH=EEh"DoubleDOS"
SeeAlso: INT 2F/AX=1680h,INT 60/DI=0106h,INT 62/AH=01h,INT 6F/AH=2Ah"F_YIELD"
SeeAlso: INT 7A/BX=000Ah,INT 7F/AH=02h"MultiLink",INT 7F/AH=E8h
--------Q-151001-----------------------------
INT 15 - TopView - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
	AX = 1001h
	BX = number of bytes to allocate
Return: ES:DI -> block of memory or 0000h:0000h (DV v2.26+)
	AX = status (DV v2.42)
	    0000h successful
	    0001h failed
Note:	use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
	  common memory.  Under DV v2.42, this call never generates a user
	  prompt regardless of the SETERROR value; instead, it always returns
	  AX=0001h and ES:DI=0000h:0000h if out of memory
SeeAlso: AX=1002h,AX=102Eh,AX=DE0Ch,AX=DE15h
--------Q-151002-----------------------------
INT 15 - TopView - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
	AX = 1002h
	ES:DI -> previously allocated block
Return: block freed
SeeAlso: AX=1001h,AX=DE0Dh
--------Q-151003-----------------------------
INT 15 - TopView - "PRINTC" - DISPLAY CHARACTER/ATTRIBUTE ON SCREEN
	AX = 1003h
	BH = attribute
	BL = character
	DX = segment of object handle for window
Note:	BX=0 does not display anything, it only positions the hardware cursor
--------Q-1510-------------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
	AH = 10h
	AL = 04h thru 12h
Return: pops up "Programming error" window in DV 2.x
--------Q-151013-----------------------------
INT 15 - TopView - "GETBIT" - DEFINE A 2ND-LEVEL INTERRUPT HANDLER
	AX = 1013h
	ES:DI -> FAR service routine
Return: BX = bit mask indicating which bit was allocated
	     0000h if no more bits available
SeeAlso: AX=1014h,AX=1015h
Note:	only a few TopView/DESQview API calls are allowed during a hardware
	  interrupt; if other calls need to be made, the interrupt handler
	  must schedule a 2nd-level interrupt with "SETBIT" (AX=1015h)
--------Q-151014-----------------------------
INT 15 - TopView - "FREEBIT" - UNDEFINE A 2ND-LEVEL INTERRUPT HANDLER
	AX = 1014h
	BX = bit mask from INT 15/AX=1013h
SeeAlso: AX=1013h,AX=1015h
--------Q-151015-----------------------------
INT 15 - TopView - "SETBIT" - SCHEDULE ONE OR MORE 2ND-LEVEL INTERRUPTS
	AX = 1015h
	BX = bit mask for interrupts to post
Return: indicated routines will be called: (DV 2.0x) at next task switch
					   (DV 2.2x) immediately on return from
						     hardware interrupt
SeeAlso: AX=1013h,AX=1014h
Notes:	this is one of the few TopView calls which are allowed from a hardware
	  interrupt handler
	the handler will be called with ES containing the segment of the handle
	  of the next task to be executed; on return, ES must be the segment of
	  a task handle
--------Q-151016-----------------------------
INT 15 - TopView - "ISOBJ" - VERIFY OBJECT HANDLE
	AX = 1016h
	ES:DI = possible object handle
Return: BX = status
	    FFFFh if ES:DI is a valid object handle (see #0304)
	    0000h if ES:DI is not
Note:	under DESQview versions prior to 2.50, an object handle is always a
	  pointer to the object; for versions 2.50 and up, only task handles
	  are always pointers--other handles may consist of a unique object
	  number and offset into DESQview's common memory (see #0313)
SeeAlso: AX=DE14h,AX=DE2Bh,AX=DE2Ch

(Table 0303)
Values for DESQview object type:
 00h	window/task
 01h	mailbox
 02h	keyboard
 03h	timer
 04h	pointer
 05h	panel
 06h	objectq

Format of DESQview object:
Offset	Size	Description	(Table 0304)
 00h	WORD	offset in common memory of previous object of same type
 02h	WORD	offset in common memory of next object of same type
 04h	WORD	signature FEDCh (DV 2.42-)
		signature FEDCh or object number (DV 2.50+)
 06h	WORD	object type (see #0303)
 08h	DWORD	object handle to return to caller
 0Ch	DWORD	canonicalized object address (segment = common memory)
 10h	WORD	offset in common memory of owning task
		(0000h for unowned OBJECTQs)
 12h	WORD	mapping context
		offset in common memory of mapping context record (see #0306)
	remainder varies by object type and DESQview version
---v2.42 keyboard object---
 14h	WORD	flag bits (see also AH=12h/BH=0Ah"OBJECT")
		bit 15: keyboard opened
 16h  4 BYTEs	???
 1Ah	WORD	priority in OBJECTQ???
 1Ch	...
 25h	WORD	offset in common memory of ??? task
 27h  4 BYTEs	???
---v2.42 objectq object---
 14h	WORD	flag bits (see also AH=12h/BH=0Ah"OBJECT")
		bit 15: OBJECTQ opened
 16h  2 BYTEs	???
 18h	WORD	offset in common memory of ??? task
 1Ah  6 BYTEs	???
---v2.42 mailbox object---
 14h	WORD	flag bits (see also AH=12h/BH=0Ah"OBJECT")
		bit 15: mailbox opened
 1Ah	WORD	priority in OBJECTQ???
 1Ch  6 BYTEs	???
 22h	WORD	offset in common memory of mailbox name (counted string)
		0000h if no name
     <= 5="" bytes="" ---v2.22-2.42,2.52,2.60="" window/task="" object---="" 14h="" byte="" 00h="" window,="" 01h="" task="" 15h="" byte="" internal="" (not="" switch="" menu)="" window="" number???="" 16h="" byte="" internal="" (not="" switch="" menu)="" window="" number???="" 17h="" word="" segment="" of="" internal="" window="" record="" (see="" #0307)="" 19h="" 2="" bytes="" 1bh="" byte="" cursor="" row="" 1ch="" byte="" cursor="" column="" 1dh="" byte="" visible="" window="" origin,="" row="" 1eh="" byte="" visible="" window="" origin,="" column="" 1fh="" byte="" window="" height="" (logical)="" 20h="" byte="" window="" width="" (logical)="" 21h="" byte="" window="" position,="" row="" 22h="" byte="" window="" position,="" column="" 23h="" byte="" window="" height="" (visible)="" 24h="" byte="" window="" width="" (visible)="" 25h="" byte="" row="" of="" top="" of="" frame="" (or="" window="" if="" unframed)="" 26h="" byte="" column="" of="" left="" of="" frame="" (or="" window="" if="" unframed)="" 27h="" byte="" window="" height="" (physical,="" including="" frame)="" 28h="" byte="" window="" width="" (physical,="" including="" frame)="" 29h="" byte="" unzoomed="" visible="" origin,="" row="" (00h="" before="" first="" zoom)="" 2ah="" byte="" unzoomed="" visible="" origin,="" column="" (00h="" before="" first="" zoom)="" 2bh="" byte="" unzoomed="" window="" position,="" row="" (00h="" before="" first="" zoom)="" 2ch="" byte="" unzoomed="" window="" position,="" column="" (00h="" before="" first="" zoom)="" 2dh="" byte="" unzoomed="" window="" height="" (00h="" before="" first="" zoom)="" 2eh="" byte="" unzoomed="" window="" width="" (00h="" before="" first="" zoom)="" unzoomed="" parameters="" above="" are="" updated="" when="" window="" is="" zoomed="" to="" full="" screen="" 2fh="" byte="" initially="" logical="" window="" height="" 30h="" byte="" initially="" logical="" window="" width="" 31h="" 2="" bytes="" 33h="" byte="" minimum="" height="" of="" window="" 34h="" byte="" minimum="" width="" of="" window="" 35h="" byte="" maximum="" height="" of="" window="" 36h="" byte="" maximum="" width="" of="" window="" 37h="" 3="" bytes="" 3ah="" 8="" bytes="" window="" frame="" characters:="" ul,ur,ll,lr,t,b,l,r="" 42h="" 24="" bytes="" attributes???="" 5ah="" 8="" bytes="" window="" frame="" characters:="" ul,ur,ll,lr,t,b,l,r="" 62h="" 3="" bytes="" 65h="" byte="" bitflags="" 66h="" byte="" bit="" 0:="" window="" is="" zoomed="" 67h="" byte="" 68h="" word="" offset="" in="" common="" memory="" of="" window="" name="" or="" 0000h="" if="" untitled="" 6ah="" word="" length="" of="" window="" name="" 6ch="" 2="" bytes="" 6eh="" word="" offset="" of="" logical="" cursor="" in="" window="" (in="" character="" cells)="" 70h="" dword="" pointer="" to="" field="" table="" for="" window="" 74h="" byte="" 75h="" 2="" bytes="" 77h="" byte="" number="" of="" last-visited="" field="" 78h="" dword="" pointer="" to="" field="" table="" entry="" for="" last-visited="" field="" 7ch="" 3="" bytes="" 7fh="" byte="" select="" field="" marker="" character="" 80h="" byte="" bit="" flags="" bit="" 0:="" allow="" ech="" window="" stream="" opcode="" to="" change="" reverse="" logattr="" bit="" 1:="" alternate="" field="" processing="" mode="" selected="" 81h="" byte="" 82h="" dword="" notification="" function="" (manager="" stream="" opcode="" 8ah)="" no="" notification="" if="" segment="0000h" 86h="" dword="" notification="" argument="" (manager="" stream="" opcode="" 8bh)="" 8ah="" word="" offset="" in="" common="" memory="" of="" window="" object="" or="" 0000h="" 8ch="" word="" offset="" in="" common="" memory="" of="" window="" object="" or="" 0000h="" 8eh="" word="" offset="" in="" common="" memory="" of="" window="" object="" or="" 0000h="" 90h="" byte="" bitflags="" 91h="" byte="" ---task="" object="" only="" 92h="" byte="" bit="" flags="" (bits="" 0-4)="" 93h="" byte="" character="" for="" (default="" 20h)="" 94h="" byte="" flag="" 95h="" word="" offset="" in="" common="" memory="" of="" 97h="" 2="" bytes="" 99h="" word="" 9bh="" byte="" bit="" flags="" bit="" 3:="" bit="" 6:="" perform="" protected-attribute="" processing="" on="" select="" fields="" 9ch="" byte="" 9dh="" word="" offset="" in="" common="" memory="" of="" current="" register="" save="" record="" (see="" #0305).="" no="" register="" save="" record="" in="" use="" if="">< 01c0h="" 9fh="" word="" offset="" in="" common="" memory="" of="" task's="" keyboard="" object="" a1h="" word="" offset="" in="" common="" memory="" of="" task's="" objectq="" object="" a3h="" word="" offset="" in="" common="" memory="" of="" task's="" mailbox="" object="" a5h="" word="" semaphore:="" ffffh="" if="" on="" user="" stack,="" else="" on="" task's="" private="" stack="" a7h="" dword="" user's="" ss:sp="" abh="" word="" task's="" private="" sp="" (ss="" read="" from="" offset="" 0ah)="" adh="" 6="" bytes="" b3h="" byte="" bit="" flags="" bit="" 0:="" run="" in="" foreground="" only="" b4h="" byte="" b5h="" byte="" bitflags="" b6h="" byte="" task="" status="" (see="" #0417="" at="" ax="DE2Ch)" b7h="" 9="" bytes="" c0h="" word="" head="" pointer="" for="" keyboard="" buffer="" (wraps="" back="" to="" 00h="" after="" 80h)="" c2h="" word="" tail="" pointer="" for="" keyboard="" buffer="" (wraps="" back="" to="" 00h="" after="" 80h)="" c4h="" 2="" bytes="" (0000h)="" c6h="" word="" segment="" of="" keyboard="" buffer="" for="" task="" c8h="" word="" offset="" in="" common="" memory="" of="" keyboard="" object="" cah="" byte="" ---v2.22-2.42="" cbh="" word="" offset="" in="" common="" memory="" of="" object="" ceh="" byte="" flag="" cfh="" word="" offset="" in="" common="" memory="" of="" default="" notify="" window="" for="" task="" or="" 0000h="" if="" none="" d1h="" 4="" bytes="" d5h="" byte="" window="" number="" on="" switch="" window="" menu="" d6h="" 5="" bytes="" dbh="" word="" offset="" in="" common="" memory="" of="" object="" ddh="" 2="" bytes="" dfh="" word="" api="" level="" for="" task="" e1h="" word="" offset="" in="" common="" memory="" of="" object="" task="" is="" waiting="" on="" if="" task="" status="" is="" 'waiting',="" else="" 0000h="" e7h="" word="" segment="" of="" e9h="" 4="" bytes="" edh="" word="" ems="" handle="" of="" virtualization="" buffer,="" 0000h="" if="" no="" virtualization="" f1h="" 12="" bytes="" fbh="" word="" fdh="" byte="" ffh="" 12="" bytes="" 10bh="" dword="" pointer="" to="" process="" record="" (see="" #0308,#0309)="" 10dh="" 10="" bytes="" 119h="" dword="" ss:sp="" for="" 11dh="" 4="" bytes="" 121h="" dword="" pointer="" to="" 125h="" 25="" bytes="" 13eh="" dword="" pointer="" to="" in="" system="" memory="" ---v2.22="" 142h="" 3="" bytes="" 145h="" task's="" default="" keyboard="" object="" ---v2.42="" 142h="" dword="" pointer="" to="" first="" task="" instance="" data="" record="" in="" system="" memory="" 148h="" dword="" pointer="" to="" last="" task="" instance="" data="" record="" in="" system="" memory="" (see="" #0310)="" 14ah="" byte="" 14dh="" 42="" bytes="" task's="" default="" keyboard="" object="" 177h="" 32="" bytes="" task's="" objectq="" object="" 197h="" 41="" bytes="" task's="" default="" mailbox="" object="" 1c0h="" 24="" bytes="" first="" register="" save="" record="" 450h="" --="" default="" top="" of="" private="" stack="" ---v2.52="" (probably="" all="" dv/x)="" same="" as="" v2.60="" below="" except="" there="" is="" an="" extra="" 29="" bytes="" inserted="" somewhere="" before="" offset="" 9fh,="" but="" not="" yet="" known="" exactly="" where.="" also,="" for="" the="" wait_on="" field="" (v2.60="" offset="" e3h),="" some="" x="" apps="" (probably="" waiting="" on="" a="" socket)="" have="" 0000h="" even="" when="" waiting.="" ---v2.60="" cbh="" word="" (added="" in="" 2.50="" -="" rest="" is="" same="" as="" 2.42)="" cdh="" word="" offset="" in="" common="" memory="" of="" object="" d0h="" byte="" flag="" d1h="" word="" offset="" in="" common="" memory="" of="" default="" notify="" window="" for="" task="" or="" 0000h="" if="" none="" d3h="" 4="" bytes="" d7h="" byte="" window="" number="" on="" switch="" window="" menu="" d8h="" 5="" bytes="" ddh="" word="" offset="" in="" common="" memory="" of="" object="" dfh="" 2="" bytes="" e1h="" word="" api="" level="" for="" task="" e3h="" word="" if="" status="" at="" b6h="waiting," offset="" in="" common="" memory="" of="" object="" that="" task="" is="" waiting="" on,="" else="" 0000h.="" (task="" with="" cpu="" also="" has="" 0000h="" here)="" e9h="" word="" segment="" of="" ebh="" 4="" bytes="" efh="" word="" ems="" handle="" of="" virtualization="" buffer,="" 0="" if="" no="" virtualization="" f3h="" 12="" bytes="" fdh="" word="" ffh="" byte="" 101h="" 8="" bytes="" 109h="" dword="" pointer="" to="" process="" record="" in="" system="" memory="" 10dh="" 14="" bytes="" 11bh="" dword="" ss:sp="" for="" 11fh="" 4="" bytes="" 123h="" dword="" pointer="" to="" 127h="" 25="" bytes="" 140h="" dword="" pointer="" to="" in="" system="" memory="" 144h="" dword="" pointer="" to="" first="" task="" instance="" data="" record="" in="" system="" memory="" 148h="" dword="" pointer="" to="" last="" task="" instance="" data="" record="" in="" system="" memory="" (from="" int="" 15/ax="DE27h)" (see="" #0310)="" 14ch="" byte="" 14eh="" 42="" bytes="" task's="" default="" keyboard="" object="" 179h="" 32="" bytes="" task's="" objectq="" object="" 199h="" 41="" bytes="" task's="" default="" mailbox="" object="" 1c2h="" 24="" bytes="" first="" register="" save="" record="" 452h="" --="" default="" top="" of="" private="" stack="" format="" of="" desqview="" register="" save="" record:="" offset="" size="" description="" (table="" 0305)="" 00h="" word="" ax="" 02h="" word="" bx="" 04h="" word="" cx="" 06h="" word="" dx="" 08h="" word="" di="" 0ah="" word="" si="" 0eh="" word="" ds="" 10h="" word="" es="" 12h="" dword="" return="" address="" 16h="" word="" original="" flags="" format="" of="" desqview="" mapping="" context="" record:="" offset="" size="" description="" (table="" 0306)="" 00h="" word="" lowest="" segment="" in="" process's="" memory="" (often="" start="" of="" system="" memory="" chain)="" 02h="" word="" size="" of="" process's="" memory="" in="" paragraphs="" 04h="" byte="" flag:="" 00h="" if="" process="" swapped="" out,="" 01h="" otherwise="" 05h="" byte="" flag:="" 00h="" if="" allocated="" in="" conventional="" memory,="" 01h="" if="" ems="" 06h="" 2="" bytes="" 08h="" word="" ems="" handle="" if="" in="" ems,="" else="" 0="" 0ah="" 2="" bytes="" (nonzero="" if="" system="" memory="" resides="" in="" shared="" mem???)="" 0ch="" word="" segment="" of="" system="" memory="" block="" that="" contains="" process="" record,="" referenced="" from="" segment="" of="" start="" of="" system="" memory="" chain="" 0eh="" byte="" 0fh="" word="" size="" of="" system="" memory="" block="" that="" contains="" process="" record="" and="" dos="" memory="" in="" paragraphs="" 11h="" byte="" bit="" flags="" bit="" 0:="" swapped="" out???="" bit="" 1:="" bit="" 2:="" swapped="" out???="" 12h="" byte="" 13h="" byte="" reference="" count="" ---v2.31="" 14h="" 10="" bytes="" 1eh="" word="" segment="" of="" process="" record="" 20h="" 2="" bytes="" 22h="" word="" segment="" of="" (in="" first="" free="" system="" memory="" block???)="" 24h="" word="" segment="" of="" end="" of="" system="" memory="" chain="" 26h="" word="" segment="" of="" start="" of="" system="" memory="" chain="" 28h="" 8="" bytes="" 2ah="" dword="" pointer="" to="" (process="" record???)="" 2dh="" 10="" bytes="" 37h="" byte="" lowest="" interrupt="" vector="" to="" save="" on="" context="" switch="" 38h="" byte="" highest="" interrupt="" vector="" to="" save="" on="" context="" switch="" 39h="" word="" offset="" in="" common="" memory="" of="" main="" task="" with="" this="" context="" 3ah="" 12="" bytes="" 46h="" byte="" internal="" mapping="" context="" number="" 47h="" 12="" bytes="" ---v2.5x-2.60="" 14h="" 6="" bytes="" 1ah="" word="" segment="" of="" process="" record="" 1ch="" 2="" bytes="" 1eh="" word="" segment="" of="" first="" free="" system="" memory="" block="" 20h="" word="" segment="" of="" start="" of="" system="" memory="" chain="" 22h="" word="" segment="" of="" end="" of="" system="" memory="" chain="" 24h="" 8="" bytes="" 2ch="" dword="" pointer="" to="" (1="" segment="" into="" process="" record???)="" 30h="" 3="" bytes="" 33h="" word="" offset="" in="" common="" memory="" of="" main="" task="" with="" this="" context="" 35h="" 7="" bytes="" 3ch="" byte="" internal="" mapping="" context="" number="" 3dh="" 14="" bytes="" 4bh="" word="" first="" dos="" memory="" segment="" (first="" mcb="" segment+1)="" 4dh="" byte="" (flag???)="" ---v2.53="" (2.5x???)="" 4eh="" 12="" bytes="" ---v2.60="" 4eh="" word="" segment="" of="" script="" buffer="" (see="" #0311)="" 50h="" 6="" bytes="" format="" of="" desqview="" internal="" window="" record="" (v2.31-2.60):="" offset="" size="" description="" (table="" 0307)="" 00h="" byte="" internal="" window="" number???="" 01h="" byte="" display="" page???="" 02h="" byte="" video="" mode="" 03h="" 3="" bytes="" 06h="" byte="" logical="" window="" height="" 07h="" byte="" logical="" window="" width="" 08h="" dword="" pointer="" to="" text="" video="" buffer="" 0ch="" 116="" bytes="" format="" of="" desqview="" process="" record="" (v2.31):="" offset="" size="" description="" (table="" 0308)="" -470h="" 13="" bytes="" filename="" of="" script="" -463h="" 1117="" bytes="" (script="" buffer???)="" -6h="" 6="" bytes="" 00h="" word="" segment="" of="" parent="" psp="" in="" process="" 02h="" 5="" bytes="" 07h="" word="" segment="" of="" current="" psp="" in="" process="" 09h="" word="" segment="" of="" first="" mcb="" in="" process="" 0bh="" 13="" bytes="" 18h="" 1024="" bytes="" process's="" interrupt="" vector="" table="" 418h="" 376="" bytes="" 590h="" first="" mcb="" in="" process="" format="" of="" desqview="" process="" record="" (v2.52-v2.60)="" (probably="" also="" 2.5x):="" offset="" size="" description="" (table="" 0309)="" 00h="" 28="" bytes="" exe="" header="" of="" last="" exe,="" if="" last="" program="" run="" was="" com="" 1ch="" bytes="" overwritten="" with="" asciz="" filename="" of="" last="" program="" run="" (exe/com)="" 11ch="" word="" segment="" of="" parent="" psp="" in="" process="" 11eh="" 4="" bytes="" 122h="" word="" segment="" of="" current="" psp="" 124h="" word="" segment="" of="" current="" psp="" 126h="" word="" segment="" of="" first="" mcb="" in="" process="" 128h="" 4="" bytes="" 12ch="" dword="" pointer="" to="" first="" process="" instance="" data="" record="" in="" system="" memory="" 130h="" dword="" pointer="" to="" last="" process="" instance="" data="" record="" in="" system="" memory="" (from="" int="" 15/ax="DE27h)" (see="" #0310)="" 134h="" 8="" bytes="" 13ch="" word="" size="" of="" current="" environment="" 13eh="" word="" segment="" of="" current="" environment="" 140h="" word="" segment="" of="" current="" psp="" 142h="" dword="" entry="" point="" of="" current="" program="" 146h="" 10="" bytes="" ---v2.52="" (v2.5x???)="" 150h="" byte="" 151h="" word="" segment="" of="" parent="" psp="" in="" process="" 153h="" word="" 155h="" word="" 157h="" word="" 159h="" 4="" bytes="" 15dh="" word="" segment="" of="" current="" environment="" 15fh="" word="" segment="" of="" current="" psp="" 161h="" word="" segment="" of="" 162h="" word="" 164h="" 3="" bytes="" 168h="" 1024="" bytes="" process's="" interrupt="" vector="" table="" 568h="" 120="" bytes="" 5e0h="" first="" mcb="" in="" process="" ---v2.60="" 150h="" word="" segment="" of="" parent="" psp="" in="" process="" 152h="" word="" 154h="" word="" 156h="" word="" 158h="" 4="" bytes="" 15ch="" word="" segment="" of="" current="" environment="" 15eh="" word="" segment="" of="" current="" psp="" 160h="" word="" segment="" of="" 162h="" word="" 164h="" 1024="" bytes="" process's="" interrupt="" vector="" table="" 564h="" 108="" bytes="" 5d0h="" first="" mcb="" in="" process="" format="" of="" desqview="" task="" or="" process="" instance="" data="" record="" (v2.5x???,="" v2.60):="" offset="" size="" description="" (table="" 0310)="" 00h="" dword="" pointer="" to="" next="" record="" of="" same="" type="" or="" 00000000="" 04h="" dword="" pointer="" to="" previous="" record="" of="" same="" type="" or="" 00000000="" 08h="" dword="" pointer="" to="" source="" area="" of="" memory="" during="" restore="" state="" 0ch="" word="" number="" of="" bytes="" to="" save/restore="" 0eh="" dword="" pointer="" to="" destination="" area="" of="" memory="" during="" restore="" state="" 12h="" word="" (0)="" 14h="" n="" bytes="" source="" memory="" buffer="" during="" restore="" state="" format="" of="" desqview="" script="" buffer="" (v2.60):="" offset="" size="" description="" (table="" 0311)="" 00h="" 13="" bytes="" asciz="" script="" filename="" 0dh="" 80="" bytes="" 5eh="" n="" bytes="" script="" records="" (see="" #0312)="" format="" of="" one="" desqview="" script="" record="" (v2.60):="" offset="" size="" description="" (table="" 0312)="" 00h="" byte="" signature="" 12h="" 01h="" 18="" bytes="" blank-padded="" script="" name="" 13h="" byte="" ascii="" code="" of="" key="" attached="" to="" script="" or="" 0="" if="" non-ascii="" key="" 14h="" byte="" scan="" code="" of="" key="" attached="" to="" script="" if="" non-ascii,="" else="" 0="" 15h="" byte="" 16h="" word="" size="" of="" script="" in="" bytes="" 18h="" n="" bytes="" script="" (ascii="" code="" of="" each="" keystroke;="" if="" 0,="" next="" byte="" is="" scan="" code="" of="" non-ascii="" key)="" format="" of="" desqview="" common="" memory="" header="" (v2.31-2.60):="" offset="" size="" description="" (table="" 0313)="" 00h="" word="" offset="" of="" lowest="" used="" block="" 02h="" word="" bytes="" of="" commom="" memory,="" including="" header="" 04h="" word="" offset="" of="" first="" free="" block="" 06h="" n="" bytes="" size="" depends="" of="" dv="" version,="" (dvp="" buffer???)="" note:="" the="" above="" is="" located="" at="" the="" beginning="" of="" the="" commom="" memory="" segment="" seealso:="" #0314,#0315,#0323="" format="" of="" desqview="" free="" block="" header:="" offset="" size="" description="" (table="" 0314)="" 00h="" word="" size="" of="" block="" in="" bytes="" including="" header="" 02h="" word="" offset="" of="" next="" free="" block="" 04h="" n="" bytes="" free="" block="" seealso:="" #0313,#0315="" format="" of="" desqview="" used="" block="" header:="" offset="" size="" description="" (table="" 0315)="" 00h="" word="" size="" of="" block="" in="" bytes="" including="" header="" 02h="" n="" bytes="" used="" block="" seealso:="" #0313,#0314="" --------q-151017-----------------------------="" int="" 15="" -="" topview="" -="" unimplemented="" in="" dv="" 2.x="" ax="1017h" return:="" pops="" up="" "programming="" error"="" window="" in="" dv="" 2.x="" --------q-151018-----------------------------="" int="" 15="" -="" topview="" -="" "locate"="" -="" find="" window="" at="" a="" given="" screen="" location="" ax="1018h" bh="column" bl="row" es="segment" of="" object="" handle="" for="" window="" below="" which="" to="" search="" 0000h="start" search="" with="" topmost="" window="" return:="" es="segment" of="" object="" handle="" for="" window="" which="" is="" visible="" at="" the="" indicated="" position,="" or="" covered="" by="" indicated="" window="" 0000h="" if="" no="" window="" seealso:="" ax="1023h,AX=1024h" --------q-151019-----------------------------="" int="" 15="" -="" topview="" -="" "sound"="" -="" make="" tone="" ax="1019h" bx="frequency" in="" hertz="" (0000h="silence)" cx="duration" in="" clock="" ticks="" (18.2="" ticks/sec)="" return:="" immediately,="" tone="" continues="" to="" completion="" notes:="" if="" another="" tone="" is="" already="" playing,="" the="" new="" tone="" does="" not="" start="" until="" completion="" of="" the="" previous="" one.="" up="" to="" 32="" tones="" may="" be="" queued="" before="" the="" process="" is="" blocked="" until="" a="" note="" completes.="" in="" dv="" 2.00,="" the="" lowest="" tone="" allowed="" is="" 20="" hz="" if="" cx="0," the="" current="" note="" is="" cancelled;="" if="" bx="0" as="" well,="" all="" queued="" notes="" are="" also="" cancelled="" seealso:="" ah="82h" hunter",int"="" 16/ah="73h" --------q-15101a-----------------------------="" int="" 15="" -="" topview="" -="" "ostack"="" -="" switch="" to="" task's="" internal="" stack="" ax="101Ah" return:="" stack="" switched="" notes:="" this="" call="" may="" not="" be="" nested;="" a="" second="" call="" must="" be="" preceded="" by="" a="" call="" to="" "ustack"="" (ax="1025h)" while="" topview="" requires="" many="" api="" calls="" to="" be="" executed="" while="" on="" the="" task's="" internal="" stack,="" desqview="" allows="" those="" calls="" to="" be="" executed="" regardless="" of="" the="" current="" stack="" seealso:="" ax="1025h" --------q-15101b-----------------------------="" int="" 15="" -="" topview="" -="" "beginc"="" -="" begin="" critical="" region="" ax="101Bh" return:="" task-switching="" temporarily="" disabled="" notes:="" will="" not="" task-switch="" until="" "endc"="" (ax="101Ch)" called="" unless="" task="" voluntarily="" releases="" the="" cpu="" (upon="" regaining="" the="" cpu,="" task-switching="" will="" again="" be="" disabled)="" suspends="" the="" caller="" until="" dos="" is="" free="" seealso:="" ah="0Dh" multidos",ax="101Ch,AX=DE13h,AX=DE1Ch,INT" "="" 2f/ax="1681h" seealso:="" int="" 60/di="0602h" --------q-15101c-----------------------------="" int="" 15="" -="" topview="" -="" "endc"="" -="" end="" critical="" region="" ax="101Ch" return:="" task-switching="" enabled="" note:="" this="" api="" call="" may="" be="" made="" from="" within="" a="" hardware="" interrupt="" handler="" seealso:="" ax="101Bh,AX=DE13h,AX=DE1Bh,INT" 2f/ax="1682h,INT" 60/di="0603h" --------q-15101d-----------------------------="" int="" 15="" -="" topview="" -="" "stop"="" -="" stop="" task="" ax="101Dh" es="segment" of="" object="" handle="" for="" task="" to="" be="" stopped="" (="=" handle="" of="" main="" window="" for="" that="" task)="" return:="" indicated="" task="" will="" not="" get="" any="" cpu="" time="" until="" restarted="" with="" ax="101Eh" note:="" once="" a="" task="" has="" been="" stopped,="" additional="" "stop"s="" are="" ignored="" bug:="" in="" dv="" 2.00,="" this="" function="" is="" ignored="" unless="" the="" indicated="" task="" is="" the="" current="" task="" seealso:="" ax="101Eh,AX=102Bh,AH=12h" vmix",int"="" 21/ah="81h" --------q-15101e-----------------------------="" int="" 15="" -="" topview="" -="" "start"="" -="" start="" task="" ax="101Eh" es="segment" of="" object="" handle="" for="" task="" to="" be="" started="" (="=" handle="" of="" main="" window="" for="" that="" task)="" return:="" indicated="" task="" is="" started="" up="" again="" note:="" once="" a="" task="" has="" been="" started,="" additional="" "start"s="" are="" ignored="" seealso:="" ax="101Dh,AX=102Bh,INT" 21/ah="82h" --------q-15101f-----------------------------="" int="" 15="" -="" topview="" -="" "disperor"="" -="" pop-up="" error="" window="" ax="101Fh" bx="bit" fields="" bits="" 0-12:="" number="" of="" characters="" to="" display="" bits="" 13,14:="" which="" mouse="" button="" may="" be="" pressed="" to="" remove="" window="" 00="either" 01="left" 10="right" 11="either" bit="" 15:="" beep="" if="" 1="" es:di="" -=""> text of message
	CH = width of error window (0 = default)
	CL = height of error window (0 = default)
	DX = segment of object handle
Return: BX = status: 1 = left button, 2 = right, 27 = ESC pressed
Note:	window remains on-screen until ESC or indicated mouse button is pressed
--------Q-151020-----------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV v2.00+
	AX = 1020h
Return: pops up "Programming error" window in DV v2.00+
--------Q-151021-----------------------------
INT 15 - TopView - "PGMINT" - INTERRUPT ANOTHER TASK
	AX = 1021h
	BX = segment of object handle for task to interrupt (not self)
	DX:CX -> FAR routine to jump to next time task is run
Return: nothing
Notes:	the FAR routine is entered with the current ES, DS, SI, DI, and BP
	  values, using the task's internal stack (see AX=101Ah); only SS:SP
	  needs to be preserved
	multiple PGMINTs to a single task are processed last-in first-out
	if the other task is in a DOS or DV API call, the interruption will
	  occur on return from that call
--------Q-151022BX0000-----------------------
INT 15 - TopView - "GETVER" - GET VERSION
	AX = 1022h
	BX = 0000h
Return: BX nonzero, TopView or compatible loaded
	(BL = major version, BH = minor version)
Notes:	TaskView returns BX = 0001h, DESQview v2.00+ returns BX = 0A01h
--------Q-151023-----------------------------
INT 15 - TopView - "POSWIN" - POSITION WINDOW
	AX = 1023h
	BX = segment of object handle for parent window within which to
			 position the window (0 = full screen)
	ES = segment of object handle for window to be positioned
	DL = general window position (see #0316)
	CH = number of columns to offset from position specified by DL
	CL = number of rows to offset from position specified by DL
Return: nothing

Bitfields for TopView general window position:
Bit(s)	Description	(Table 0316)
 0,1	horizontal position
	00 = current, 01 = center, 10 = left, 11 = right
 2,3	vertical position
	00 = current, 01 = center, 10 = top, 11 = bottom
 4	don't redraw screen if set
 5-7	not used
--------Q-151024-----------------------------
INT 15 - TopView - "GETBUF" - GET VIRTUAL SCREEN INFO
	AX = 1024h
	BX = segment of object handle for window
	      (0 = use default)
Return: ES:DI -> virtual screen
	CX = size of virtual screen in bytes
	DL = 00h text screen
		  01h graphics screen
SeeAlso: INT 10/AH=FEh,INT 21/AH=2Bh/CX=4445h
--------Q-151025-----------------------------
INT 15 - TopView - "USTACK" - SWITCH BACK TO USER'S STACK
	AX = 1025h
Return: stack switched back
Notes:	call only after having switched to internal stack with AX=101Ah
	while TopView requires many API calls to be executed while on the
	  task's private stack, DESQview allows those calls to be executed
	  regardless of the current stack
SeeAlso: AX=101Ah
--------Q-1510-------------------------------
INT 15 - DESQview (TopView???) - UNIMPLEMENTED IN DV 2.x
	AH = 10h
	AL = 26h thru 2Ah
Return: pops up "Programming error" window in DV 2.x
--------Q-15102B-----------------------------
INT 15 - DESQview v2.00+ (TopView???) - "POSTTASK" - AWAKEN TASK
	AX = 102Bh
	BX = segment of object handle for task
Return: nothing
Note:	forces a task which is waiting on its objectq to continue by placing
	  the handle for the task on the objectq
SeeAlso: AX=101Dh,AX=101Eh,INT 21/AH=82h
--------Q-15102C-----------------------------
INT 15 - DESQview v2.00+ - "NEWPROC" - START NEW APPLICATION IN NEW PROCESS
	AX = 102Ch
	ES:DI -> contents of .PIF/.DVP file (see #0317)
	BX = size of .PIF/.DVP info
Return: BX = segment of object handle for new task
	     0000h on error
SeeAlso: AX=DE24h,INT 21/AH=4Bh

Format of .PIF/.DVP file:
Offset	Size	Description	(Table 0317)
 00h	BYTE	reserved (0)
 01h	BYTE	checksum of bytes 02h through 170h
 02h 30 BYTEs	blank-padded program title
 20h	WORD	maximum memory to allocate to partition in KB
 22h	WORD	minimum memory required in KB
 24h 64 BYTEs	ASCIZ program pathname
 64h	BYTE	default drive letter ('A',...)
 65h 64 BYTEs	ASCIZ default directory name
 A5h 64 BYTEs	ASCIZ program parameters
 E5h	BYTE	initial screen mode (0-7) (see also offset 189h)
 E6h	BYTE	number of text pages used
 E7h	BYTE	number of first interrupt to save
 E8h	BYTE	number of last interrupt to save
 E9h	BYTE	rows in virtual screen buffer
 EAh	BYTE	columns in virtual screen buffer
 EBh	BYTE	initial window position, row
 ECh	BYTE	initial window position, column
 EDh	WORD	system memory in KB
 EFh 64 BYTEs	ASCIZ shared program name
12Fh 64 BYTEs	ASCIZ shared program data file
16Fh	BYTE	program flags 1 (see #0318)
170h	BYTE	flags2
		bit 6: uses command-line parameters in field at A5h
		bit 5: swaps interrupt vectors
---information unique to .DVP files---
171h  2 BYTEs	keys to use on open menu
173h	WORD	size of script buffer in bytes
175h	WORD	automatically give up CPU after this many tests for keyboard
		  input in one clock tick (default 0 = never)
177h	BYTE	nonzero = "uses own colors"
178h	BYTE	nonzero if application swappable
179h  3 BYTEs	reserved (0) according to Quarterdeck documentation
		in actual .DVP files, frequently 01h
17Ch	BYTE	nonzero to automatically close on exit (see also #0320)
17Dh	BYTE	nonzero if copy-protect floppy is required
---information unique to DESQview 2.0+---
17Eh	BYTE	.DVP version number
		00h DESQview v1.2+
		01h DESQview v2.0+
		02h DESQview v2.2+
17Fh	BYTE	reserved (0)
180h	BYTE	initial number of rows in physical window
181h	BYTE	initial number of columns in physical window
182h	WORD	maximum expanded memory to allow, in KB
184h	BYTE	DVP program flags 3 (see #0319)
185h	BYTE	keyboard conflict level (0-4 for DV<2.26, 00h-0fh="" for="" dv2.26+)="" (see="" #0321)="" 186h="" byte="" number="" of="" graphics="" pages="" used="" 187h="" word="" extra="" system="" memory="" size="" 189h="" byte="" initial="" screen="" mode="" (ffh="default)" (overrides="" offset="" e5h)="" ---information="" unique="" to="" desqview="" 2.2+---="" 18ah="" byte="" serial="" port="" usage="" ffh="" uses="" all="" serial="" ports="" 00h="" no="" serial="" ports="" 01h="" only="" com1="" 02h="" only="" com2="" 18bh="" byte="" dvp="" program="" flags="" 4="" (see="" #0320)="" 18ch="" byte="" protection="" level="" for="" 386="" machines="" 18dh="" 19="" bytes="" reserved="" (0)="" for="" regular="" desqview="" ---information="" unique="" to="" desqview/x="" 1.0---="" 18dh="" byte="" x="" flags="" bits="" 3-7:="" unused="" (0)="" bit="" 2:="" don't="" display="" wait="" message="" when="" opening="" window="" bit="" 1:="" don't="" display="" dos="" window="" bit="" 0:="" (xnewproc)="" use="" dos="" client="" layer="" (dos-to-x)="" (newproc)="" inherit="" dos="" client="" layer="" usage="" 18eh="" byte="" x="" keyboard="" behavior="" (0-3)="" 18fh="" byte="" font="" scaling="" 00h="" fixed="" fonts="" 01h="" scalable="" fonts="" 190h="" 10="" bytes="" reserved="" (0)="" 19ah="" word="" length="" of="" data="" follownig="" xdvp="" signature="" 19ch="" 4="" bytes="" signature="" "xdvp"="" 1a0h="" n="" bytes="" list="" of="" variable="" length="" records="" (see="" #0322)="" bitfields="" for="" .pif/.dvp="" program="" flags="" 1:="" bit(s)="" description="" (table="" 0318)="" 7="" writes="" text="" directly="" to="" screen="" 6="" runs="" in="" foreground="" only="" (see="" also="" offset="" 184h)="" 5="" uses="" math="" coprocessor="" 4="" accesses="" system="" keyboard="" buffer="" directly="" 3-1="" reserved="" (0)="" 0="" swappable="" seealso:="" #0317,#0319,#0320="" bitfields="" for="" .dvp="" program="" flags="" 3:="" bit(s)="" description="" (table="" 0319)="" 7="" automatically="" assign="" window="" position="" 5="" maximum="" memory="" value="" has="" been="" specified="" 4="" disallow="" "close"="" command="" 3="" foreground-only="" when="" doing="" graphics="" set="" by="" dv="" 2.3+="" when="" "runs="" in="" background"="D" (undoc)="" 2="" don't="" virtualize="" (see="" also="" #0320)="" 1="" foreground-only="" during="" dos="" calls="" set="" by="" dv="" 2.3+="" when="" "runs="" in="" background"="D" (undoc)="" seealso:="" #0317,#0318,#0320="" bitfields="" for="" .dvp="" program="" flags="" 4:="" bit(s)="" description="" (table="" 0320)="" 7="" automatically="" close="" application="" on="" exit="" if="" .com="" or="" .exe="" specified="" (see="" also="" #0317="" offset="" 17ch)="" 6="" swappable="" if="" not="" using="" serial="" ports="" 5="" start="" program="" with="" window="" hidden="" (v2.26+)="" 4="" start="" program="" in="" background="" (v2.26+)="" 3="" virtualize="" text="" (see="" also="" #0319)="" 2="" virtualize="" graphics="" (see="" also="" #0319)="" 1="" share="" cpu="" when="" foreground="" 0="" share="" ega="" when="" foreground="" and="" zoomed="" seealso:="" #0317,#0318,#0319="" bitfields="" for="" desqview="" keyboard="" conflict="" level:="" bit(s)="" description="" (table="" 0321)="" 3="" save/restore="" entire="" int="" 09="" handler="" state="" every="" taskswtch="" 2="" take="" special="" precautions="" for="" programs="" which="" read="" the="" bios="" keyboard="" buffer="" directly="" from="" memory="" 1="" never="" indicate="" keystroke="" available="" during="" scripts/xfers="" 0="" only="" indicate="" keystroke="" available="" every="" sixth="" poll="" seealso:="" #0317="" format="" of="" desqview/x="" variable="" length="" record:="" offset="" size="" description="" (table="" 0322)="" 00h="" word="" length="" of="" following="" record,="" 0000h="" if="" end="" of="" record="" list="" 02h="" byte="" record="" type="" 01h="" script="" filename,="" up="" to="" 64="" characters="" 02h="" command-line="" parameters="" (allows="">64 characters on cmdline)
		03h environment inheritance
		04h environment string
		05h starting window position
---types 01h,02h,04h---
 03h  N BYTEs	ASCII data
---type 03h---
 03h	BYTE	inheritance
		00h do not inherit
		01h inherit environment
---type 05h---
 03h  N BYTEs	ASCII copy of fields as typed into DVPMAN, separated by commas:
		starting row, starting column, starting height, starting width
Note:	if there are multiple occurrences of record types 01h, 02h, or 03h,
	  only the last instance of each type is used; multiple occurrences of
	  type 04h are concatenated
SeeAlso: #0317
--------Q-15102D-----------------------------
INT 15 - DESQview v2.00+ - "KMOUSE" - KEYBOARD MOUSE CONTROL
	AX = 102Dh
	BL = subfunction
	     00h determine whether using keyboard mouse
		Return: BL = 00h using real mouse
			     01h using keyboard mouse
	     01h turn keyboard mouse on
		  02h turn keyboard mouse off
--------Q-15102E-----------------------------
INT 15 - DESQview v2.40+ - ALLOCATE SYSTEM MEMORY
	AX = 102Eh
	BX = number of bytes
Return: AX = status
	    0000h successful
		ES:DI -> allocated system memory (see #0323)
	    0001h failed
		ES:DI = 0000h:0000h
Note:	under DV 2.42, this call is identical to AX=1001h
SeeAlso: AX=1001h,AX=1002h,AX=DE0Ch

Format of DESQview system memory block header:
Offset	Size	Description	(Table 0323)
 00h	WORD	segment of next header or 0000h
 02h	WORD	segment of previous header or 0000h
 04h	WORD	size of block in paragraphs, including header
 06h	BYTE	availability flag (00h in use, 01h free)
Note:	this header is located one paragraph before the memory block proper
SeeAlso: #0313
--------Q-1511-------------------------------
INT 15 - TopView commands
	AH = 11h
	AL = various (except 17h)
Note:	in DESQview 2.x, these function calls are identical to AH=DEh, so
	  see those below
SeeAlso: AH=DEh
--------T-1511-------------------------------
INT 15 - VMiX - "sys_system" - EXECUTE SHELL SYSTEM COMMANDS
	AH = 11h
	STACK:	DWORD	pointer to ASCIZ string containing a VMiX shell
			request (max len = 127)
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=0Ch"VMiX"
--------T-1511-------------------------------
INT 15 - MultiDOS Plus - TURN OFF AltZ TOGGLE
	AH = 11h
Note:	disables the Alt-Z MultiDOS command/program-selection hotkey
SeeAlso: AH=12h"MultiDOS"
Index:	hotkeys;MultiDOS Plus
--------Q-151117BX0000-----------------------
INT 15 - DESQview v2.20+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
	AX = 1117h
	BX = 0000h	get current mapping context without setting
	     nonzero	set new mapping context
Return: BX = mapping context in effect before call
	interrupts enabled
Notes:	this function differs from AX = DE17h for DESQview v2.20 through 2.25
	mapping contexts determine conventional-memory addressability; setting
	  a mapping context ensures that the associated program and data areas
	  are in memory for access.  Usable by drivers, TSRs and shared
	  programs.
	caller need not be running under DESQview, but must ensure that the
	  stack in use will not be mapped out by the call
SeeAlso: AX=DE17h,INT 2F/AX=1685h
--------m-1511DE-----------------------------
INT 15 - DESQview - QEXT.SYS - INSTALLATION CHECK
	AX = 11DEh
Return: CF clear if installed
	    AX = segment at which QEXT.SYS is located
Desc:	QEXT.SYS is Quarterdeck's HMA manager for DESQview; more recent
	  versions also implement the XMS standard
Note:	a private entry point (see #0324) may be found by searching the
	  beginning of the returned segment for the signature string
	  "QUARTERDECK EXTENDED MEMORY MANAGER 286"; the word immediately
	  prior to the signature contains the QEXT version number in BCD,
	  and the word prior to that contains the offset within the QEXT
	  code segment of the private entry point
SeeAlso: INT 2F/AX=4310h,INT 67/AH=3Fh

(Table 0324)
Call QEXT.SYS private entry point with:
	AH = 00h ???
	AH = nonzero ???
--------T-1512-------------------------------
INT 15 - VMiX - "sys_sleep" - PUT PROCESS TO SLEEP
	AH = 12h
	STACK:	WORD	process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=03h"MultiDOS",AX=101Dh,AH=13h"VMiX"
--------T-1512-------------------------------
INT 15 - MultiDOS Plus - TURN ON AltZ TOGGLE
	AH = 12h
Note:	enables the Alt-Z MultiDOS command/program-selection hotkey
SeeAlso: AH=11h"MultiDOS"
Index:	hotkeys;MultiDOS Plus
--------Q-1512--BH00-------------------------
INT 15 - TopView - SEND MESSAGE - "HANDLE" - RETURN OBJECT HANDLE
	AH = 12h
	BH = 00h
	BL = which handle to return
		 00h handle in DWORD on top of stack
	    01h current task's window handle
	    02h given task's mailbox handle (task's handle on stack)
	    03h current task's mailbox handle
	    04h given task's keyboard handle (task's handle on stack)
	    05h current task's keyboard object handle
	    06h given task's OBJECTQ handle (task's handle on stack)
	    07h current task's OBJECTQ handle
	    08h	  \
	      thru > return 0000:0000 under DV < 2.26="" 10h="" 0ch="" (2.26+)="" task="" owning="" object="" with="" handle="" in="" dword="" on="" top="" of="" stack="" 0dh="" (2.26+)="" task="" handle="" of="" owner="" (parent)="" of="" current="" task="" return:="" dword="" on="" top="" of="" stack="" is="" object="" handle="" note:="" bl="0Ch,0Dh" returns="" 00000000h="" if="" the="" object="" is="" not="" open="" (keyboard,="" mailbox,="" panel,="" pointer,="" and="" timer="" objects)="" or="" is="" an="" orphan="" (task,="" window)="" seealso:="" ah="12h/BH=02h,AH=12h/BH=80h" --------q-1512--bh01-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "new"="" -="" create="" new="" object="" ah="12h" bh="01h" bl="object" type="" to="" create="" 00h="" (dv="" 2.0x="" only)="" handle="" is="" dword="" on="" top="" of="" stack="" 01h="" (dv="" 2.0x="" only)="" use="" task's="" window="" handle="" 02h="" (dv="" 2.0x="" only)="" given="" task's="" mailbox="" (task's="" handle="" on="" stack)="" 03h="" (dv="" 2.0x="" only)="" current="" task's="" mailbox="" 04h="" (dv="" 2.0x="" only)="" given="" task's="" keyboard="" (task's="" handle="" on="" stack)="" 05h="" (dv="" 2.0x="" only)="" current="" task's="" keyboard="" object="" 08h="" window="" class="" 09h="" mailbox="" class="" 0ah="" keyboard="" class="" 0bh="" timer="" object="" (counts="" down="" 32-bit="" time="" in="" 10ms="" increments)="" 0fh="" pointer="" object="" 10h="" panel="" object="" stack:="" (if="" window="" object="" or="" window="" class)="" dword="" address="" to="" jump="" to="" (no="" new="" task="" if="" high="" word="=" 0)="" dword="" (reserved)="" 0="non-task" window,="" ffffh="task" window="" dword="" bytes="" for="" task's="" private="" stack="" (ffffh="=" default="" of="" 0100h)="" dword="" bytes="" system="" memory="" for="" input="" buffer="" for="" read/readn="" (0="=" none,="" -1="=" default--same="" as="" logical="" window="" size)="" dword="" window="" size,="" columns="" dword="" window="" size,="" rows="" dword="" length="" of="" window="" title="" dword="" address="" of="" window="" title="" return:="" dword="" on="" top="" of="" stack="" is="" new="" object="" handle="" notes:="" if="" a="" new="" task="" is="" created,="" it="" is="" started="" with="" ax="BX" =="" si="DI" =="" bp="0" dx:cx="handle" of="" parent="" task="" ds="ES" =="" ss="segment" of="" private="" stack="" (and="" new="" task's="" handle)="" new="" windows="" are="" orphans,="" inherit="" the="" colors/hidden="" status="" of="" the="" creating="" task's="" window,="" and="" are="" placed="" in="" the="" upper="" left="" hand="" corner="" of="" the="" screen="" but="" not="" automatically="" redrawn="" new="" keyboards="" are="" closed,="" and="" have="" all="" object="" bits="" cleared="" except="" for="" the="" hardware="" cursor="" bit="" seealso:="" ah="12h/BH=02h,AH=12h/BH=81h" --------q-1512--bh02-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "free"="" -="" free="" an="" object="" ah="12h" bh="02h" bl="object" 00h="" handle="" in="" dword="" on="" top="" of="" stack="" window:="" close="" window="" and="" free="" timer:="" free="" timer="" panel:="" free="" panel="" object="" pointer:="" free="" pointer="" 01h="" task's="" window="" handle="" -="" kills="" task,="" never="" returns="" 02h="" given="" task's="" mailbox="" (task's="" handle="" on="" top="" of="" stack)="" 03h="" current="" task's="" mailbox="" 04h="" given="" task's="" keyboard="" (task's="" handle="" on="" top="" of="" stack)="" 05h="" current="" task's="" keyboard="" object="" notes:="" when="" a="" window="" is="" freed,="" its="" keyboard="" and="" pointer="" objects="" are="" freed;="" task="" windows="" also="" free="" any="" mailbox,="" objectq,="" and="" panel="" objects="" held="" by="" the="" task="" and="" any="" child="" tasks="" if="" the="" keyboard="" being="" freed="" is="" the="" default="" keyboard="" for="" a="" task,="" this="" call="" is="" equivalent="" to="" close="" panel="" and="" pointer="" objects="" are="" automatically="" closed="" if="" open="" seealso:="" ah="12h/BH=01h,AH=12h/BH=0Dh,AH=12h/BH=82h" --------q-1512--bh03-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "addr"="" -="" get="" handle="" of="" message="" sender="" ah="12h" bh="03h" bl="object" 00h="" mailbox="" handle="" in="" dword="" on="" top="" of="" stack="" 02h="" sender="" of="" last="" msg="" read="" from="" mailbox="" (task's="" handle="" on="" stack)="" 03h="" sender="" of="" last="" msg="" read="" from="" current="" task's="" mailbox="" return:="" dword="" on="" stack="" is="" task="" handle="" of="" message="" sender="" seealso:="" ah="12h/BH=00h,AH=12h/BH=83h" --------q-1512--bh03-------------------------="" int="" 15="" -="" desqview="" v2.26+="" -="" "connect"="" -="" connect="" two="" windows="" ah="12h" bh="03h" bl="window" to="" be="" connected="" 00h="" handle="" of="" window="" to="" be="" attached="" in="" dword="" on="" top="" of="" stack="" 01h="" attach="" current="" task's="" main="" window="" stack:="" dword="" handle="" of="" window="" to="" attach="" to="" or="" 00000000h="" to="" detach="" return:="" stack="" popped="" notes:="" when="" two="" windows="" are="" connected,="" both="" will="" move="" if="" the="" user="" moves="" either="" multiple="" windows="" may="" be="" attached="" to="" a="" single="" window,="" but="" each="" window="" may="" only="" be="" attached="" to="" one="" window="" at="" a="" time="" seealso:="" ah="12h/BH=83h" --------q-1512--bx0300-----------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "dir"="" -="" get="" panel="" file="" directory="" ah="12h" bx="0300h" stack:="" dword="" handle="" of="" panel="" object="" (see="" #0325)="" return:="" stack:="" dword="" length="" of="" directory="" (always="" multiple="" of="" 14="" bytes)="" dword="" address="" of="" directory="" note:="" a="" null="" string="" is="" returned="" if="" the="" object="" is="" not="" open="" seealso:="" ah="12h/BX=0400h" apply",ah="12h/BH=83h" "="" format="" of="" topview="" panel="" file:="" offset="" size="" description="" (table="" 0325)="" 00h="" 2="" bytes="" c0h="" c3h="" 02h="" byte="" number="" of="" panels="" in="" file="" 03h="" for="" each="" panel="" in="" file:="" 8="" bytes="" blank-padded="" panel="" name="" dword="" panel="" offset="" in="" file="" word="" panel="" length="" data="" for="" panels="" (each="" consists="" of="" one="" or="" more="" window/query/manager="" streams);="" first="" byte="" of="" each="" panel="" must="" be="" 1bh,="" fifth="" byte="" must="" be="" e5h="" --------q-1512--bh04-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "read"="" -="" read="" next="" logical="" line="" of="" window="" ah="12h" bh="04h" bl="window" to="" read="" from="" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" 01h="" use="" calling="" task's="" default="" window="" 0ch="" (dv="" 2.26+)="" default="" window="" of="" task="" owning="" handle="" on="" top="" of="" stack="" 0dh="" (dv="" 2.26+)="" default="" window="" of="" parent="" task="" of="" current="" task="" return:="" stack:="" dword="" number="" of="" bytes="" read="" dword="" address="" of="" buffer="" notes:="" reading="" starts="" at="" the="" current="" logical="" cursor="" position;="" the="" cursor="" is="" updated="" to="" point="" at="" the="" character="" following="" the="" last="" one="" read="" any="" translucent="" blanks="" (ffh)="" which="" are="" visible="" on="" screen="" are="" changed="" to="" the="" character="" which="" is="" seen="" through="" them="" the="" string="" produced="" by="" the="" read="" is="" placed="" in="" an="" input="" buffer="" which="" may="" be="" reused="" by="" the="" next="" read="" or="" readn="" of="" a="" window="" window="" stream="" opcodes="" d8h="" and="" d9h="" determine="" whether="" the="" read="" returns="" characters="" or="" attributes="" seealso:="" ah="12h/BH=05h" window",ah="12h/BH=12h,AH=12h/BH=84h" "="" --------q-1512--bh04-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "read"="" -="" get="" next="" record="" from="" object="" ah="12h" bh="04h" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" mailbox:="" wait="" for="" and="" get="" next="" message="" keyboard:="" wait="" for="" and="" get="" pointer="" to="" next="" input="" buffer="" pointer:="" wait="" for="" and="" get="" next="" message="" 02h="" get="" next="" message="" from="" mailbox="" (task's="" handle="" on="" top="" of="" stack)="" 03h="" get="" next="" message="" from="" current="" task's="" mailbox="" 04h="" get="" the="" next="" input="" from="" keyboard="" (handle="" on="" top="" of="" stack)="" 05h="" get="" the="" next="" input="" from="" task's="" default="" keyboard="" 06h="" wait="" for="" input="" from="" any="" object="" in="" objectq="" (handle="" on="" stack)="" 07h="" wait="" for="" input="" from="" any="" object="" in="" task's="" default="" objectq="" return:="" stack:="" (if="" objectq)="" dword="" handle="" of="" object="" with="" input="" (otherwise)="" dword="" number="" of="" bytes="" dword="" address="" of="" pointer="" message="" (see="" #0326)="" notes:="" for="" a="" keyboard="" in="" keystroke="" mode,="" the="" input="" buffer="" is="" a="" single="" byte="" containing="" the="" character="" code="" as="" returned="" by="" the="" bios;="" the="" bios="" scan="" code="" is="" available="" via="" the="" status="" call="" if="" the="" character="" is="" zero="" for="" a="" keyboard="" in="" field="" mode,="" the="" input="" buffer="" format="" is="" determined="" by="" the="" field="" table="" header="" for="" the="" window="" the="" keyboard="" is="" attached="" to="" keyboard="" input="" buffers="" and="" mailbox="" message="" buffers="" may="" be="" invalidated="" by="" the="" next="" read,="" erase,="" close,="" or="" free="" message="" to="" the="" same="" object="" seealso:="" ah="12h/BH=05h" object",ah="12h/BH=84h" "="" format="" of="" desqview="" pointer="" message:="" offset="" size="" description="" (table="" 0326)="" 00h="" word="" row="" 02h="" word="" column="" 04h="" byte="" status="" (see="" #0327)="" 05h="" byte="" field="" number="" or="" zero="" (apilevel="">= 2.00 only)

Bitfields for DESQview pointer status:
Bit(s)	Description	(Table 0327)
 7-2	number of clicks-1 if multiple-click mode active
 7	set when press/release mode active and button pressed
 6	set when press/release mode active and button released
 1-0	button pressed (00=none,01=button1,10=button2)
--------Q-1512--BX0400-----------------------
INT 15 - TopView - SEND MESSAGE - "READ" - WAIT FOR TIMER TO EXPIRE
	AH = 12h
	BX = 0400h
	STACK: DWORD timer's handle
Return: after timer expires
	STACK: DWORD time in 1/100 sec after midnight when timer expired
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=84h
--------Q-1512--BX0400-----------------------
INT 15 - TopView - SEND MESSAGE - "APPLY" - WRITE PANEL TO WINDOW
	AH = 12h
	BX = 0400h
	STACK: DWORD handle of panel object
	       DWORD window's handle (or 0 for current task's window)
	       DWORD length of panel name
	       DWORD pointer to panel name
Return: STACK: DWORD handle of window which was used
	       DWORD handle of keyboard or 0
Notes:	status of APPLY may be checked with STATUS message
	panel MUST have the following format
	  first byte must be 1Bh (i.e. must start with a stream)
	  first opcode in stream must be E5h
	    single byte arg of opcode is interpreted thus:
	      bits 7,6	11 means create new window
			10 means create new field table for existing window
			01 means use existing window and field table
	      bit 5 if set, panel contains a field table
			(creates a new keyboard and puts it in field mode)
	      bit 4 if set, panel contains input fields
	      bit 3 if set, panel contains select fields but no input fields
	if the panel contains input or select fields, a keyboard handle is
	  returned; either the window's current open keyboard or a
	  newly-created keyboard object.  The caller should read that keyboard
	  to obtain input from the panel.
SeeAlso: AH=12h/BH=84h
--------Q-1512--BH05------------------------
INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE TO OBJECT
	AH = 12h
	BH = 05h
	BL = object
	    00h handle is DWORD on top of stack
		timer: start timer to end at a specified time
		keyboard: add input buffer to queue
		pointer: move pointer icon to specified position
	    02h send message by value/status=0 to mbox (task's handle on stack)
	    03h send message by value/status=0 to current task's mailbox
	    04h add input buffer to KEYBOARD queue (handle on top of stack)
	    05h add input buffer to task's default KEYBOARD queue
		 06h add an object to OBJECTQ (handle on top of stack)
	    07h add an object to task's default OBJECTQ
	STACK: (if mailbox)  DWORD length
			     DWORD address
	       (if keyboard) DWORD status (scan code in keystroke mode)
			     DWORD length (should be 1 in keystroke mode)
			     DWORD address
	       (if objectq)  DWORD handle of object to add
	       (if timer)    DWORD 1/100ths seconds since midnight (actually
				   only accurate to 1/18 sec)
	       (if pointer)  DWORD column relative to origin of window
			     DWORD row relative to origin of window
Notes:	under DV 2.2+, failed mailbox writes may return CF set (see AX=DE15h)
	the data and status written to a keyboard object must match the format
	  returned by the keyboard object in the current mode
	the pointer position is scaled according to the current scaling factors
SeeAlso: AH=12h/BH=04h,AH=12h/BH=85h
--------Q-1512--BH05-------------------------
INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE STRING TO WINDOW
	AH = 12h
	BH = 05h
	BL = window to write to
	    00h DWORD on top of stack is window handle
		 01h write string to task's default window
	    0Ch (DV 2.26+) default window of task owning handle on top of stack
	    0Dh (DV 2.26+) default window of parent of current task
	STACK: DWORD object handle if handle passed on stack
	       DWORD total length of string (high word == 0)
	       DWORD address of string to display (see #0328)
Return: indicated actions performed
	a. non-control characters are displayed (opcodes DEh and DFh control
	   whether the attributes are left or changed to the current attrib)
	b. CR/LF/BS/Tab cause the usual cursor movement
	c. ESC starts a data structure with additional commands if following
	   byte is less than 20h; otherwise, it is written to the window
	STACK:	DWORD handle of new window if window stream opcode E6h
		else nothing
SeeAlso: AH=12h/BH=04h,AH=12h/BH=85h

Format of stream data structure:
Offset	Size	Description	(Table 0328)
 00h	BYTE	1Bh magic value identifying start of stream
 01h	BYTE	stream type (00h, 01h, 10h, 14h-1Fh legal)
		(see #0329,#0335,#0336,#0337)
 02h	WORD	length of remainder of stream in bytes
	var-length fields follow, each an OPCODE followed by
		  zero or more args

(Table 0329)
Values for MODE 00h (set or display values) "WINDOW STREAM" opcodes:
Opcodes:args
 00h  display 20h blanks with the default attribute
 01h-1Fh display OPCODE blanks with the default attribute
 20h  display char with default attribute 20h times
	BYTE char to repeat
 21h-3Fh display char with default attribute OPCODE-20h times
	BYTE char to repeat
 40h  display 20h blanks with specified attribute
	BYTE attribute of blanks
 41h-5Fh display OPCODE-40h blanks with specified attribute
	BYTE attribute of blanks
 60h  display next 20h characters
	20h BYTEs characters to display
 61h-7Fh display next OPCODE-60h characters
	N BYTEs characters to display
 80h-87h display N blanks with default attribute
	BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE)
		  [000h means 800h]
 88h-8Fh display N copies of the character
	BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE)
		  [000h means 800h]
	BYTE character to repeat
 90h-97h display N blanks with specified attribute
	BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE)
		  [000h means 800h]
	BYTE attribute
 98h-9Fh display string at logical cursor pos
	BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE)
		  [000h means 800h]
	N BYTEs string to display
 A0h  set logical cursor row
	BYTE row number (0 is top)
 A1h  set logical cursor column
	BYTE column number (0 is leftmost)
 A2h  set top edge of scrolling region
	BYTE row
 A3h  set left edge of scrolling region
	BYTE column
 A4h  set row of physical window position
	BYTE line
 A5h  set column of physical window position
	BYTE column
 A6h  set height of physical window
	BYTE number of rows
 A7h  set width of physical window
	BYTE number of columns
 A8h  set viewport row
	BYTE row
 A9h  set viewport column
	BYTE column
 AAh  set virtual screen height [contents of window unpredictable after]
	BYTE rows
 ABh  set virtual screen width [contents of window unpredictable after]
	BYTE columns
 ACh-AEh unused
 AFh  set compatible/preferred video modes
	BYTE compatibility/preference mask
		bit 7	compatible with monochrome
		bit 6	compatible with color text, EGA/VGA graphics
		bit 5	compatible with medium-resolution CGA graphics
		bit 4	compatible with high-resolution CGA graphics
		bit 3	prefer monochrome
		bit 2	prefer color text, EGA/VGA graphics
		bit 1	prefer medium-resolution CGA graphics
		bit 0	prefer high-resolution CGA graphics
 B0h  move logical cursor down
	BYTE number of rows (signed, negative values move up)
		[if rows=0 and hardware cursor owner, update hardware cursor]
 B1h  move logical cursor right
	BYTE number of columns (signed, negative values move left)
		[if cols=0 and hardware cursor owner, update hardware cursor]
 B2h  shift top edge of scrolling region
	BYTE number of rows (signed)
 B3h  shift left edge of scrolling region
	BYTE number of columns (signed)
 B4h  shift physical window down
	BYTE number of lines (signed)
 B5h  shift physical window right
	BYTE number of columns (signed)
 B6h  expand physical window vertically
	BYTE number of lines (signed)
 B7h  expand physical window horizontally
	BYTE number of columns (signed)
 B8h  adjust viewport row
	BYTE number of rows (signed)
 B9h  adjust viewport column
	BYTE number of columns (signed)
 BAh  adjust virtual screen height [contents of window unpredict after]
	BYTE number of rows to increase (signed)
 BBh  adjust virtual screen width [contents of window unpredictbl after]
	BYTE number of columns to increase (signed)
 BCh-BFh reserved (currently unused)
 C0h  set logical cursor position
	BYTE row number (0 is top border)
	BYTE column number (0 is left border)
 C1h  set top left corner of scrolling region
	BYTE row
	BYTE column
 C2h  set physical window pos
	BYTE upper left row (no top border if 0)
	BYTE upper left column (no left border if 0)
 C3h  set current window size
	BYTE number of rows
	BYTE number of columns
 C4h  set upper left corner of viewport (portion of virtual screen displayed
	  in window)
	BYTE row
	BYTE column
 C5h  set size of virtual screen [contents unpredictable afterwards]
	BYTE number of rows
	BYTE number of columns
 C6h  unused
 C7h  unused
 C8h  set logical cursor relative to current position
	BYTE number of rows to move down (signed)
	BYTE number of columns to move right (signed)
		[if rows=cols=0 and hardware cursor owner, update hardw cursor]
 C9h  shift top left corner of scrolling region
	BYTE number of rows (signed)
	BYTE number of columns (signed)
 CAh  set window pos relative to current position
	BYTE number of rows to shift down (signed)
	BYTE number of columns to shift right (signed)
 CBh  set window size relative to current size
	BYTE number of rows to expand (signed)
	BYTE number of cols to expand (signed)
 CCh  shift viewport relative to current position
	BYTE rows to shift (signed)
	BYTE cols to shift (signed)
 CDh  resize virtual screen
	BYTE number of rows to expand (signed)
	BYTE number of columns to expand (signed)
 CEh  scroll text when using E8h-EBh/F8h-FBh opcodes (default)
 CFh  scroll attributes when using  E8h-EBh/F8h-FBh opcodes
 D0h  allow window frame to extend beyond screen
 D1h  always display a complete frame, even if window extends beyond edge of
	  screen
 D2h  allow DV to change logical colors on video mode switch (default)
 D3h  application changes logical attributes
 D4h  window is visible [must redraw to actually make visible]
 D5h  window is hidden [must redraw to actually remove]
 D6h  window has frame (default)
 D7h  window unframed [must redraw to actually remove frame]
 D8h  READ/READN will read characters from window (default)
 D9h  READ/READN will read attributes from window
 DAh  use logical attributes, which may be remapped (see #0330)
 DBh  use physical attributes for characters
 DCh  enable special actions for control characters (default)
 DDh  disable special control char handling, all chars displayable by BIOS TTY
	  call
 DEh  write both character and attribute (default)
 DFh  write character only, leave attribute untouched
 E0h  repeat following commands through E1h opcode
	BYTE number of times to repeat (00h means 256 times)
 E1h  end of commands to repeat, start repeating them
 E2h  set current output color
	BYTE color
 E3h  clear virtual screen from scroll origin to end using current color
 E4h  redraw window
 E5h  select menu style
	BYTE style (normally 18h)
		bits 5,4 = 01 use two-letter menu entries for remainder of
		  this stream
 E5h  (panel file only)
	BYTE modifier
		bits 7,6 = 11 panel stream creates new window
			 = 10 panel defines new field table for existing window
			 = 01 panel stream uses existing window & field table
		bit 5 = 1 stream contains a field table (create kyboard object)
		bit 4 = 1 stream defines input fields (create keyboard object)
		bit 3 = 1 stream defines select fields but not input fields
		bit 2 = 1 stream defines exclusive input window (DV 2.2)
		bit 1 reserved
		bit 0 reserved
 E6h  create new window and perform rest of manipulations in new window
	BYTE number of rows
	BYTE number of columns
	Return: DWORD object handle of new window returned on stack at end
	Note:	the window is created with a physical size of 0x0 at the
		  same position as the window to which this stream was sent
 E7h  no operation
 E8h  scroll area up (top left corner defined by opcode C1h)
	BYTE height
	BYTE width
 E9h  scroll area down (top left corner defined by opcode C1h)
	BYTE height
	BYTE width
 EAh  scroll area left (top left corner defined by opcode C1h)
	BYTE height
	BYTE width
 EBh  scroll area right (top left corner defined by opcode C1h)
	BYTE height
	BYTE width
 ECh  set logical attributes for window contents
	BYTE video modes command applies to
		bit 7	monochrome
		bit 6	color text, EGA/VGA graphics
		bit 5	medium-resolution CGA graphics
		bit 4	high-resolution CGA graphics
	BYTE which attributes to set
		bit 7	if set, copy single following byte to indicated attribs
		bits 4-6  number of first attribute to change - 1
		bits 0-3  number of consecutive attributes to change
	N BYTEs new attributes
 EDh  set logical attributes for window frame
	BYTE video modes command applies to (see opcode ECh)
	BYTE which attributes to set
		bit 7	if set, copy single following byte to indicated attrs
		bits 4-6  number of first attribute to change - 1
		bits 0-3  number of consecutive attributes to change
	N BYTEs new attributes
		  attributes
		       1 = top left corner
		       2 = top right corner
		       3 = bottom left corner
		       4 = bottom right corner
		       5 = top edge
		       6 = bottom edge
		       7 = left edge
		       8 = right edge
 EEh  set characters for window frame
	BYTE video modes command applies to (see opcode ECh)
	BYTE which characters to set
		bit 7	if set, copy single following byte to indicated chars
		bits 4-6  number of first character to change - 1
		bits 0-3  number of consecutive characters to change
	N BYTEs new chars (same relative position as attributes above)
 EFh  set window name
	BYTE length of name (should be in range 0 to logical screen width)
	N BYTEs name
 F0h  clear input field to blanks
	BYTE field number
 F1h  fill input field with character
	BYTE field number
	BYTE char
 F2h  set color of input field
	BYTE field number (1-N)
	BYTE attribute
 F3h  set initial contents of input field
	BYTE field number (1-N)
	N BYTEs enough chars to exactly fill field as defined by op FFh
 F4h  position cursor to start of specific input field
	BYTE field number (1-N)
 F5h  change field table entry
	BYTE field number
	7-8 BYTEs field table entry (see opcode FFh below)
 F6h  set field type
	BYTE field number
	BYTE type
		00h inactive
		40h output field
		80h input field
		C0h deselected field
		C2h selected field
 F7h  "broadcast write"	write data to fields with program output bit set in
	  the field table entry, in field number order
	N BYTEs (total length of all program output fields)
 F8h  scroll field up a line
	BYTE field number
 F9h  scroll field down a line
	BYTE field number
 FAh  scroll field left
	BYTE field number
 FBh  scroll field right
	BYTE field number
 FCh  set field table header
	6 BYTEs	field table header (see #0331)
 FDh  reset modified bit for all fields
 FEh  reset selected and modified bits for all fields
 FFh  set up input fields
	6 BYTEs	table header (see #0331)
	7/8N BYTEs the field table entries, one for each field (see #0333)
	Note:	DESQview uses and updates the actual copy of the information
		  which is contained in the stream.  Thus this info must remain
		  intact until after the data entry is complete.

(Table 0330)
Values for TopView logical attributes:
 01h	normal text
 02h	highlighted normal text
 03h	help text
 04h	highlighted help text
 05h	error message
 06h	highlighted error message
 07h	emphasized text
 08h	marked text
 9-16	reverse video versions of 1-8

Format of TopView field table header:
Offset	Size	Description	(Table 0331)
 00h	BYTE	number of fields (must be <= existing="" number="" of="" fields)="" 01h="" byte="" screen="" behavior="" bits="" (see="" #0332)="" 02h="" byte="" current="" input="" field="" (updated="" by="" desqview)="" 03h="" byte="" current="" select="" field="" (updated="" by="" desqview)="" 04h="" byte="" attribute="" for="" select="" fields="" when="" they="" are="" pointed="" at="" 05h="" byte="" attribute="" for="" select="" fields="" which="" have="" been="" selected="" bitfields="" for="" topview="" screen="" behavior="" bits:="" bit(s)="" description="" (table="" 0332)="" 7="" reserved="" 6="" menu="" items="" may="" be="" selected="" via="" keyboard="" 5="" left="" mouse="" button="" in="" "status"="" mode="" (press="" anywhere="" in="" window="" immediately="" returns="" control="" to="" application)="" 4="" right="" mouse="" button="" in="" "status"="" mode="" 3="" select="" fields="" return="" contents="" or="" blanks="" rather="" than="" 'y'="" or="" 'n'="" 2="" modified="" bits="" reset="" on="" return="" to="" application="" 1-0="" type="" of="" data="" returned="" 00="" no="" data="" returned="" on="" read="" of="" keyboard="" 01="" data="" returned="" as="" array="" of="" characters="" containing="" all="" fields="" packed="" together,="" with="" no="" field="" numbers="" 10="" data="" returned="" as="" numbered="" variable-length="" records="" for="" all="" fields="" 11="" data="" returned="" as="" numbered="" variable-length="" records="" for="" the="" fields="" which="" were="" modified="" format="" of="" topview="" field="" table="" entry:="" offset="" size="" description="" (table="" 0333)="" 00h="" byte="" start="" row="" \="" 01h="" byte="" start="" column="" \="" if="" menu="" selection="" and="" start="" is="" to="" 02h="" byte="" end="" row="" right="" or="" below="" end,="" select="" from="" kbd="" only="" 03h="" byte="" end="" column="" 04h="" byte="" field="" type="" (see="" #0334)="" 05h="" byte="" modifier="" if="" type="" is="" fill-in,="" then="" bit="" flags="" to="" determine="" behavior="" bit="" 7="" automatically="" enter="" cr="" when="" field="" full="" bit="" 6="" move="" to="" next="" field="" when="" current="" field="" is="" full="" bit="" 5="" enter="" text="" from="" right="" end="" (for="" numbers)="" bit="" 4="" force="" input="" to="" uppercase="" bit="" 3="" clear="" old="" contents="" on="" first="" keystroke="" bit="" 2="" input="" returned="" when="" cursor="" moves="" out="" of="" modified="" field="" ("validate",="" api="" level="" 2.02+)="" bit="" 1="" reserved="" bit="" 0="" reserved="" if="" select="" field,="" first="" key="" to="" press="" to="" activate="" 00h="" if="" have="" to="" point-&-click="" or="" is="" an="" extended-ascii="" keystroke="" (only="" if="" two-key="" menus="" enabled)="" 06h="" byte="" (select="" field="" only)="" normal="" color="" of="" field="" 07h="" byte="" second="" key="" for="" select="" field.="" this="" byte="" is="" present="" iff="" two-letter="" menu="" entries="" selected="" with="" opcode="" e5h,="" and="" in="" that="" case="" is="" present="" regardless="" of="" field="" type="" bitfields="" for="" topview="" field="" type:="" bit(s)="" description="" (table="" 0334)="" 7,6="" field="" class="" 00="" inactive="" (non-entry)="" field="" 01="" echos="" keystrokes="" input="" to="" make="" menu="" selection="" 10="" fill-in="" field="" 11="" select="" field="" 5="" field="" can="" be="" filled="" by="" broadcast="" write="" (f7h="" opcode)="" 4="" reserved="" 3="" reserved="" 2="" reserved="" 1="" set="" if="" field="" selected="" 0="" set="" if="" field="" modified="" (table="" 0335)="" values="" for="" mode="" 01h="" "query="" stream"="" opcodes:="" (valid="" only="" for="" those="" opcodes="" listed="" here)="" a0h="" return="" logical="" cursor="" row="" in="" next="" byte="" a1h="" return="" logical="" cursor="" column="" in="" next="" byte="" a2h="" return="" top="" row="" of="" scrolling="" region="" in="" next="" byte="" a3h="" return="" left="" column="" of="" scrolling="" region="" in="" next="" byte="" a4h="" return="" row="" of="" physical="" window="" origin="" in="" next="" byte="" a5h="" return="" column="" of="" physical="" window="" origin="" in="" next="" byte="" a6h="" return="" height="" of="" physcial="" window="" in="" next="" byte="" a7h="" return="" width="" of="" physical="" window="" in="" next="" byte="" a8h="" return="" row="" of="" viewport="" origin="" in="" next="" byte="" a9h="" return="" column="" of="" viewport="" origin="" in="" next="" byte="" aah="" return="" height="" of="" virtual="" screen="" in="" next="" byte="" abh="" return="" width="" of="" virtual="" screen="" in="" next="" byte="" afh="" return="" current="" video="" mode="" in="" next="" byte="" c0h="" return="" current="" logical="" cursor="" position="" in="" next="" two="" bytes="" c1h="" return="" top="" left="" corner="" of="" scrolling="" region="" in="" next="" two="" bytes="" c2h="" return="" current="" window="" position="" in="" next="" two="" bytes="" c3h="" return="" current="" window="" size="" in="" next="" two="" bytes="" c4h="" return="" current="" viewport="" origin="" in="" next="" two="" bytes="" c5h="" return="" current="" virtual="" screen="" size="" in="" next="" two="" bytes="" d0h="" \="" overwritten="" with="" d0h="" if="" frames="" may="" fall="" off="" screen="" edge="" d1h="" d1h="" if="" frames="" always="" displayed="" entirely="" d2h="" \="" overwritten="" with="" d2h="" if="" desqview="" controls="" color="" palette="" d3h="" d3h="" if="" application="" changes="" color="" palette="" d4h="" \="" overwritten="" with="" d4h="" if="" window="" visible="" d5h="" d5h="" if="" window="" hidden="" d6h="" \="" overwritten="" with="" d6h="" if="" window="" has="" frame="" d7h="" d7h="" if="" window="" unframed="" d8h="" \="" overwritten="" with="" d8h="" if="" reading="" characters="" from="" window="" d9h="" d9h="" if="" reading="" attributes="" from="" window="" dah="" \="" overwritten="" with="" dah="" if="" using="" logical="" attributes="" dbh="" dbh="" if="" using="" physical="" attributes="" dch="" \="" overwritten="" with="" dch="" if="" tty="" control="" char="" interpretation="" on="" ddh="" ddh="" if="" tty="" control="" char="" interpretation="" off="" deh="" \="" overwritten="" with="" deh="" if="" writing="" both="" characters="" and="" attributes="" dfh="" dfh="" if="" leaving="" attributes="" untouched="" e2h="" return="" current="" color="" in="" next="" byte="" ech="" get="" logical="" attributes="" for="" window="" contents="" byte="" execute="" call="" if="" currently="" in="" specified="" video="" mode="" bit="" 7="" monochrome="" bit="" 6="" color="" text,="" ega/vga="" graphics="" bit="" 5="" medium-resolution="" cga="" graphics="" bit="" 4="" high-resolution="" cga="" graphics="" byte="" which="" attributes="" to="" get="" bit="" 7="" unused???="" bits="" 4-6="" first="" attribute="" to="" get="" -="" 1="" bits="" 0-3="" number="" of="" consecutive="" attributes="" n="" bytes="" buffer="" to="" hold="" attributes="" edh="" get="" logical="" attributes="" for="" window="" frame="" byte="" execute="" call="" if="" currently="" in="" video="" mode="" (see="" opcode="" ech)="" byte="" which="" attributes="" to="" get="" bit="" 7="" unused???="" bits="" 4-6="" first="" attribute="" to="" get="" -="" 1="" bits="" 0-3="" number="" of="" consecutive="" attributes="" n="" bytes="" buffer="" to="" hold="" attributes="" eeh="" get="" characters="" for="" window="" frame="" byte="" execute="" call="" if="" currently="" in="" video="" mode="" (see="" opcode="" ech)="" byte="" which="" attributes="" to="" get="" bit="" 7="" unused???="" bits="" 4-6="" first="" char="" to="" get="" -="" 1="" bits="" 0-3="" number="" of="" consecutive="" chars="" n="" bytes="" buffer="" to="" hold="" chars="" efh="" return="" first="" n="" characters="" of="" current="" window="" name="" byte="" max="" length="" of="" returned="" name="" n="" bytes="" buffer="" to="" hold="" window="" name="" f3h="" return="" contents="" of="" specified="" field="" byte="" field="" number="" n="" bytes="" buffer="" to="" hold="" field="" contents="" (size="" equal="" to="" field="" size)="" f5h="" get="" field="" table="" entry="" byte="" field="" number="" 7-8="" bytes="" buffer="" to="" hold="" field="" table="" entry="" (see="" #0333)="" notes:="" dv="">< 2.26="" always="" returns="" 7="" bytes="" dv="" 2.26+="" w/="" apilevel="">< 2.26="" returns="" 8="" bytes="" iff="" field="" table="" is="" using="" 8-byte="" entries="" and="" eighth="" byte="" after="" f5h="" is="" e7h="" (nop);="" otherwise,="" 7="" bytes="" are="" returned="" dv="" 2.26+="" w/="" apilevel=""> 2.26 returns 7 or 8 bytes depending
		  on the field table entry size
 F6h get type of a field
	BYTE field number
	BYTE type
 FCh get field table header
	6 BYTEs buffer to store field table header (see #0331)

(Table 0336)
Values for MODE 10h "MANAGER STREAM" opcodes (valid only for those listed):
 00h allow window to be moved horizontally
 01h allow window to be moved vertically
 02h allow window to change width
 03h allow window to change height
 04h allow window to be scrolled horizontally
 05h allow window to be scrolled vertically
 06h allow "Close Window" menu selection for application
 07h allow "Hide Window" menu selection for application
 08h allow application to be suspended ("Rearrange/Freeze")
 0Eh allow "Scissors" menu
 10h allow DESQview main menu to be popped up
 11h allow "Switch Windows" menu
 12h allow "Open Window" menu
 13h allow "Quit" menu selection
 20h-33h opposite of 00h-13h, disallow specified action
 40h notify if horizontal position of window changes
 41h notify if vertical position of window changes
 42h notify if width of window changes
 43h notify if height of window changes
 44h notify if window scrolled horizontally
 45h notify if window scrolled vertically
 46h notify if window is closed--program has to clean up and exit itself
 47h notify if window is hidden
 48h notify if "?" on main menu selected
 49h notify if pointer message sent to window
 4Ah notify if window is placed in foreground
 4Bh notify if window is placed in background
 4Ch notify if video mode changes
 4Dh notify if "Scissors" menu "Cut" option selected
 4Eh notify if "Scissors" menu "Copy" option selected
 4Fh notify if "Scissors" menu "Paste" option selected
 50h notify if DESQview main menu about to pop up
 51h notify if DESQview main menu popped down
 60h-71h	 opposite of 40h-51h: don't notify on specified event
 84h attach window to parent task's window (both move together)
 85h detach window from parent task's window (may move independently)
 86h disable background operation for application
 87h enable running in background
 88h set minimum size of physical window
	BYTE rows
	BYTE columns
 89h set maximum size of physical window
	BYTE rows
	BYTE cols
 8Ah set primary asynchronous notification routine (see #0338)
	DWORD address of routine, 0000h:0000h means none (see also below)
 8Bh set async notification parameter
	DWORD 32-bit value passed to 8Ah async routine in DS:SI
 ACh (DV2.2+) perform regular select field attribute processing
 ADh (DV2.2+) protect attributes in selected field from being lost
 AEh make window default notify window for owning app (API level 2.00+)
 AFh set selected field marker character
	BYTE character to display at left edge of selected fields
 BCh set standard field processing mode
 BDh set alternate field processing mode (enables cursor pad for menus)
 BEh disables changing reverse logical attributes with ECh opcode
 BFh enables changing reverse logical attributes with ECh opcode
 C0h make current window topmost in system
 C1h force current process into foreground
 C2h make current window topmost in process
 C3h position mouse pointer relative to origin of current field
	BYTE rows below upper left corner of field
	BYTE columns to right of upper left corner of field
 C4h position mouse pointer relative to origin of given field
	BYTE field number
	BYTE rows below upper left corner of field
	BYTE columns to right of upper left corner of field
 C5h orphan current window (also hides it)
	Note: must be last in stream; all subsequent commands ignored
 C6h show all windows for this process
 C7h hide all windows for this process
 C8h suspend process and hide all its windows
 C9h force current process into background
 CAh make current window bottom-most in process
 CBh cancel current window manager operation, remove DV menu, give control
	  to topmost application
 CCh orphan window and give it to the system for use as paste data
 CEh reorder windows
	DWORD pointer to null-terminated list of words; each word is segment
		  of object handle for a window
 FFh no operation

(Table 0337)
Values for MODES 14h to 1Fh "USER STREAMS":
	normally NOPs, but may be defined by SETESC message to invoke FAR
	routines, one for each mode number
	  on entry to handler,
		DS:SI -> first byte of actual stream (not header)
		CX = number of bytes in stream
		ES:DI = window's handle

(Table 0338)
Values asynchronous notification routine defined by man.stream 8Ah called with:
	ES:DI = handle of window
	DS:SI is 32-bit value set by 8Bh manager stream opcode
	   mailbox contains message indicating event
	      Opcode
	       40h  horizontal movement
		   DWORD object handle of window
		   BYTE	 new row
		   BYTE	 new col
	       41h  vertical movement
		   DWORD object handle of window
		   BYTE	 new row
		   BYTE	 new col
	       42h  horizontal size change
		   DWORD object handle of window
			BYTE	 new rows
		   BYTE	 new cols
	       43h  vertical size change
		   DWORD object handle of window
		   BYTE	 new rows
		   BYTE	 new cols
	       44h  scrolled horizontally
		   DWORD object handle of window
		   BYTE	 mouse row within window
		   BYTE	 mouse column within window
		   BYTE	 field mouse is on, 0 if none
		   BYTE	 amount moved: >0 right, <0 left,="" 0="" done="" 45h="" scrolled="" vertically="" dword="" object="" hande="" of="" window="" byte="" mouse="" row="" within="" window="" byte="" mouse="" column="" within="" window="" byte="" field="" mouse="" is="" on,="" 0="" if="" none="" byte="" amount="" moved:="">0 down, <0 up,="" 0="" done="" 46h="" window="" close="" request="" dword="" object="" handle="" of="" window="" byte="" mouse="" pointer="" row="" byte="" mouse="" pointer="" column="" byte="" field="" mouse="" is="" on,="" 0="" if="" none="" 47h="" application's="" windows="" hidden="" 48h="" help="" for="" program="" selected="" dword="" object="" handle="" of="" window="" byte="" mouse="" pointer="" row="" byte="" mouse="" pointer="" column="" byte="" field="" mouse="" is="" on,="" 0="" if="" none="" 49h="" pointer="" message="" sent="" to="" window="" dword="" pointer="" handle="" which="" received="" message="" 4ah="" switched="" to="" window="" from="" another="" ("raise")="" 4bh="" switched="" away="" from="" the="" window="" ("lower")="" 4ch="" video="" mode="" changed="" byte="" new="" bios="" video="" mode="" 4dh="" scissors/cut="" selected="" dword="" object="" handle="" of="" window="" byte="" row="" of="" upper="" left="" corner="" byte="" column="" of="" upper="" left="" corner="" byte="" field="" number="" ul="" corner="" is="" in,="" 0="none" dword="" handle="" of="" orphaned="" window="" created="" with="" copy="" of="" data="" from="" specified="" region="" byte="" height="" of="" region="" byte="" width="" of="" region="" 4eh="" scissors/copy="" selected="" dword="" object="" handle="" of="" window="" byte="" row="" of="" upper="" left="" corner="" byte="" column="" of="" upper="" left="" corner="" byte="" field="" number="" ul="" corner="" is="" in,="" 0="none" dword="" handle="" of="" orphaned="" window="" created="" with="" copy="" of="" data="" from="" specified="" region="" byte="" height="" of="" region="" byte="" width="" of="" region="" 4fh="" scissors/paste="" selected="" dword="" object="" handle="" of="" window="" byte="" row="" of="" upper="" left="" corner="" byte="" column="" of="" upper="" left="" corner="" byte="" field="" number="" ul="" corner="" is="" in,="" 0="none" dword="" handle="" of="" orphaned="" window="" with="" data="" byte="" height="" of="" region="" byte="" width="" of="" region="" note:="" orphaned="" data="" window="" should="" be="" adopted="" or="" freed="" when="" done="" 50h="" main="" menu="" about="" to="" pop="" up="" 51h="" main="" menu="" popped="" down="" return:="" all="" registers="" unchanged="" --------q-1512--bh06-------------------------="" int="" 15="" -="" desqview="" 2.20+="" -="" send="" message="" -="" "setpri"="" -="" set="" priority="" within="" objectq="" ah="12h" bh="06h" bl="object" 00h="" object="" handle="" in="" dword="" on="" top="" of="" stack="" mailbox,="" keyboard,="" pointer,="" or="" timer="" (dv="" 2.50+)="" window="" 01h="" (dv="" 2.50+)="" current="" task's="" window="" 04h="" given="" task's="" keyboard="" (task's="" handle="" on="" top="" of="" stack)="" 05h="" current="" task's="" default="" keyboard="" stack:="" dword="" new="" priority="" of="" object="" in="" task's="" objectq="" (new="" priority="" of="" task="" if="" window="" handle)="" notes:="" initially="" all="" objects="" have="" the="" same="" default="" value.="" should="" only="" make="" relative="" adjustments="" to="" this="" default="" value.="" when="" changing="" priorities,="" all="" objects="" already="" on="" the="" objectq="" are="" reordered="" for="" window="" handles,="" only="" the="" non-blocked="" task(s)="" with="" the="" highest="" priority="" receive="" cpu="" time="" under="" desqview="" 2.50-2.52;="" the="" default="" priority="" is="" 0ah="" seealso:="" ah="12h/BH=07h,AH=12h/BH=87h" --------q-1512--bh07-------------------------="" int="" 15="" -="" desqview="" 2.20+="" -="" send="" message="" -="" "getpri"="" -="" get="" priority="" within="" objectq="" ah="12h" bh="07h" bl="object" 00h="" object="" handle="" in="" dword="" on="" top="" of="" stack="" mailbox,="" keyboard,="" pointer,="" or="" timer="" (dv="" 2.50+)="" window="" 01h="" (dv="" 2.50+)="" current="" task's="" window="" 04h="" given="" task's="" keyboard="" (task's="" handle="" on="" top="" of="" stack)="" 05h="" current="" task's="" default="" keyboard="" return:="" stack:="" dword="" object="" priority="" note:="" initially="" all="" objects="" have="" the="" same="" default="" value.="" should="" only="" make="" relative="" adjustments="" to="" this="" default="" value.="" seealso:="" ah="12h/BH=06h" --------q-1512--bh08-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "sizeof"="" -="" get="" object="" size="" ah="12h" bh="08h" bl="object" 00h="" handle="" in="" dword="" on="" top="" of="" stack="" window:="" total="" character="" positions="" in="" window="" timer:="" elapsed="" time="" since="" timer="" started="" pointer:="" number="" of="" messages="" queued="" to="" pointer="" object="" panel:="" number="" of="" panels="" in="" panel="" file="" keyboard:="" number="" of="" input="" buffers="" queued="" 01h="" total="" chars="" in="" current="" task's="" default="" window="" 02h="" number="" of="" messages="" in="" task's="" mailbox="" (task's="" handle="" on="" stack)="" 03h="" number="" of="" messages="" in="" current="" task's="" mailbox="" 04h="" number="" of="" input="" buffers="" queued="" in="" task's="" kbd="" (handle="" on="" stack)="" 05h="" number="" of="" input="" buffers="" queued="" for="" current="" task's="" default="" kbd="" 06h="" number="" of="" objects="" queued="" in="" objectq="" (task's="" handle="" on="" stack)="" 07h="" number="" of="" objects="" queued="" in="" current="" task's="" objectq="" 0ch="" (dv="" 2.26+)="" total="" chars="" in="" window="" owning="" handle="" on="" top="" of="" stack="" 0dh="" (dv="" 2.26+)="" total="" chars="" in="" parent="" task's="" window="" return:="" dword="" on="" top="" of="" stack="" is="" result="" note:="" for="" panel="" objects,="" a="" count="" of="" zero="" is="" returned="" if="" no="" panel="" file="" is="" open="" for="" the="" object="" seealso:="" ah="12h/BH=04h,AH=12h/BH=09h" --------q-1512--bh09-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "len"="" -="" get="" object="" length="" ah="12h" bh="09h" bl="object" 00h="" handle="" in="" dword="" on="" top="" of="" stack="" window:="" get="" chars/line="" timer:="" get="" 1/100="" seconds="" remaining="" before="" timer="" expires="" mailbox:="" (dv/x)="" get="" number="" of="" bytes="" queued="" to="" mailbox="" 01h="" get="" number="" of="" chars/line="" in="" current="" task's="" default="" window="" 0ch="" (dv="" 2.26+)="" get="" chars/line="" in="" window="" owning="" handle="" on="" top="" of="" stk="" 0dh="" (dv="" 2.26+)="" get="" chars/line="" in="" parent="" task's="" window="" return:="" dword="" on="" top="" of="" stack="" is="" length="" seealso:="" ah="12h/BH=08h" --------q-1512--bh0a-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "addto"="" -="" write="" chars="" and="" attribs="" to="" window="" ah="12h" bh="0Ah" bl="window" to="" write="" to="" 00h="" window="" handle="" is="" dword="" on="" top="" of="" stack="" 01h="" current="" task's="" default="" window="" 0ch="" (dv="" 2.26+)="" default="" window="" of="" task="" owning="" handle="" on="" top="" of="" stack="" 0dh="" (dv="" 2.26+)="" default="" window="" of="" parent="" of="" current="" task="" stack:="" dword="" count="" of="" attributes="" dword="" address="" of="" attribute="" string="" dword="" count="" of="" characters="" dword="" address="" of="" character="" string="" notes:="" if="" one="" string="" is="" longer="" than="" the="" other,="" the="" shorter="" one="" will="" be="" reused="" until="" the="" longer="" one="" is="" exhausted="" the="" cursor="" is="" left="" just="" after="" the="" last="" character="" written="" seealso:="" ah="12h/BH=0Bh" window""="" --------q-1512--bh0a-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "addto"="" -="" send="" mailbox="" message/stat="" by="" value="" ah="12h" bh="0Ah" bl="mailbox" to="" write="" to="" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" 02h="" default="" mailbox="" of="" task="" whose="" handle="" is="" on="" top="" of="" stack="" 03h="" current="" task's="" default="" mailbox="" stack:="" dword="" status="" (low="" byte)="" dword="" length="" of="" message="" dword="" address="" of="" message="" notes:="" the="" message="" is="" copied="" into="" either="" system="" or="" common="" memory="" insufficient="" memory="" normally="" causes="" the="" process="" to="" be="" aborted;="" under="" desqview="" 2.2+,="" failed="" writes="" may="" return="" cf="" set="" instead="" (see="" ax="DE15h)" seealso:="" ah="12h/BH=0Bh" mailbox""="" --------q-1512--bh0a-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "addto"="" -="" set="" object="" bits="" ah="12h" bh="0Ah" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" timer:="" start="" timer="" for="" specified="" interval="" pointer:="" set="" control="" flags="" (see="" #0340)="" keyboard:="" set="" control="" flags="" (see="" #0339)="" 04h="" set="" control="" flags="" on="" keyboard="" object="" (handle="" on="" top="" of="" stack)="" 05h="" set="" control="" flags="" on="" task's="" default="" keyboard="" object="" stack:="" (if="" timer)="" dword="" duration="" in="" 1/100="" seconds="" (otherwise)="" dword="" bits="" to="" set="" seealso:="" ah="12h/BH=0Bh" object""="" bitfields="" for="" desqview="" keyboard="" object="" bits:="" bit(s)="" description="" (table="" 0339)="" 15="" reserved,="" can't="" be="" set="" 14="" unused="" 13="" reserved,="" can't="" be="" set="" 12-6="" unused="" 5="" (dv="" 2.2+)="" exclusive="" input="" 4="" filter="" all="" keys="" (used="" with="" handler="" established="" by="" setesc)="" if="" 0,="" only="" keys="" that="" would="" normally="" be="" displayed="" are="" filtered="" 3="" program="" continues="" executing="" while="" input="" in="" progress="" 2="" insert="" mode="" active="" for="" field="" mode="" 1="" hardware="" cursor="" displayed="" when="" task="" is="" hardware="" cursor="" owner="" must="" be="" set="" if="" keyboard="" in="" field="" mode="" and="" field="" table="" includes="" input="" fields="" 0="" keyboard="" is="" in="" field="" mode="" rather="" than="" keystroke="" mode="" bitfields="" for="" desqview="" pointer="" object="" bits:="" bit(s)="" description="" (table="" 0340)="" 15="" reserved,="" can't="" be="" set="" 14-8="" unused="" 7="" mouse="" pointer="" is="" hidden="" while="" in="" window="" 6="" get="" messages="" even="" if="" window="" not="" topmost="" 5="" get="" messages="" even="" if="" window="" not="" foreground="" 4="" multiple="" clicks="" separated="" by="" less="" than="" 1/3="" second="" are="" counted="" and="" returned="" in="" a="" single="" message="" 3="" pointer="" position="" is="" relative="" to="" screen="" origin,="" not="" window="" origin="" 2="" send="" message="" on="" button="" release="" as="" well="" as="" button="" press="" 1="" (dv="" 2.23+)="" send="" message="" with="" row="FFFFh" and="" col="FFFFh" whenever="" the="" pointer="" leaves="" the="" window="" 0="" send="" message="" only="" on="" button="" activity,="" not="" movement="" dv-specific,="" and="" int="" 15/ax="DE0Fh" must="" have="" been="" called="" first="" --------q-1512--bh0b-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "subfrom"="" -="" write="" attributes="" to="" window="" ah="12h" bh="0Bh" bl="window" to="" write="" attributes="" to="" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" 01h="" current="" task's="" default="" window="" 0ch="" (dv="" 2.26+)="" default="" window="" of="" task="" owning="" handle="" on="" top="" of="" stack="" 0dh="" (dv="" 2.26+)="" default="" window="" of="" parent="" of="" current="" task="" stack:="" dword="" number="" of="" attributes="" to="" write="" dword="" address="" of="" attributes="" note:="" the="" attributes="" are="" written="" starting="" at="" the="" current="" cursor="" position;="" the="" cursor="" is="" left="" just="" after="" the="" last="" position="" written="" seealso:="" ah="12h/BH=0Ah" window""="" --------q-1512--bh0b-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "subfrom"="" -="" send="" mailbox="" message/stat="" by="" ref="" ah="12h" bh="0Bh" bl="mailbox" to="" write="" to="" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" 02h="" default="" mailbox="" of="" task="" whose="" handle="" is="" on="" top="" of="" stack="" 03h="" current="" task's="" default="" mailbox="" stack:="" dword="" status="" (low="" byte)="" dword="" length="" of="" message="" dword="" address="" of="" message="" notes:="" only="" a="" pointer="" to="" the="" message="" is="" stored,="" but="" the="" write="" may="" still="" fail="" due="" to="" insufficient="" memory="" under="" dv="" 2.2+,="" failed="" mailbox="" writes="" may="" return="" cf="" set="" (see="" ax="DE15h)" seealso:="" ah="12h/BH=0Ah" mailbox""="" --------q-1512--bh0b-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "subfrom"="" -="" remove="" object="" from="" objectq="" ah="12h" bh="0Bh" bl="OBJECTQ" from="" which="" to="" remove="" all="" copies="" of="" a="" particular="" object="" 06h="" objectq="" of="" task="" whose="" handle="" is="" on="" top="" of="" stack="" 07h="" task's="" default="" objectq="" stack:="" dword="" handle="" of="" object="" to="" remove="" note:="" should="" be="" sent="" whenever="" an="" object="" is="" erased="" or="" closed="" --------q-1512--bh0b-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "subfrom"="" -="" reset="" object="" bits="" ah="12h" bh="0Bh" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" pointer:="" reset="" control="" flags="" keyboard:="" reset="" control="" flags="" 04h="" clear="" control="" flags="" on="" keyboard="" object="" (handle="" on="" top="" of="" stack)="" 05h="" clear="" control="" flags="" on="" task's="" default="" keyboard="" object="" stack:="" dword="" which="" bits="" to="" clear="" (see="" #0339,#0340)="" seealso:="" ah="12h/BH=0Ah" object""="" --------q-1512--bh0c-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "open"="" -="" open="" object="" ah="12h" bh="0Ch" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" window:="" fill="" with="" given="" character="" from="" scroll="" origin="" to="" end="" keyboard:="" attach="" to="" a="" window="" timer:="" open="" pointer:="" start="" taking="" input="" for="" window="" panel:="" associate="" with="" a="" panel="" file="" 01h="" fill="" task's="" default="" window="" with="" given="" char="" from="" scrl="" org="" to="" end="" 02h="" open="" given="" task's="" mailbox="" for="" input="" (task's="" handle="" on="" stack)="" 03h="" open="" current="" task's="" mailbox="" 04h="" attach="" a="" keyboard="" to="" a="" window="" (handle="" on="" top="" of="" stack)="" 05h="" attach="" task's="" default="" keyboard="" to="" a="" window="" 06h="" open="" a="" task's="" objectq="" (task's="" handle="" on="" top="" of="" stack)="" 07h="" open="" current="" task's="" objectq="" 0ch="" (dv="" 2.26+)="" fill="" def="" window="" of="" task="" owning="" handle="" on="" top="" of="" stck="" 0dh="" (dv="" 2.26+)="" fill="" default="" window="" of="" parent="" of="" current="" task="" stack:="" (if="" window)="" dword="" character="" to="" fill="" with="" (if="" keyboard)="" dword="" handle="" of="" window="" to="" attach="" to="" (if="" pointer)="" dword="" handle="" of="" window="" to="" attach="" to="" (if="" panel)="" dword="" length="" of="" filename="" or="" resident="" panel="" dword="" address="" of="" filename="" or="" resident="" panel="" (otherwise)="" nothing="" notes:="" if="" first="" byte="" of="" panel="" file="" name="" is="" 1bh,="" then="" the="" "name"="" is="" a="" panel="" if="" first="" two="" bytes="" of="" panel="" file="" "name"="" are="" c0hc3h,="" then="" the="" "name"="" is="" the="" panel="" file="" result="" code="" of="" open="" may="" be="" retrieved="" with="" status="" message="" logical="" cursor="" is="" left="" at="" scroll="" origin="" after="" filling="" window="" the="" task="" opening="" a="" mailbox="" becomes="" its="" owner,="" and="" the="" only="" task="" allowed="" to="" read="" the="" mailbox="" messages="" are="" only="" sent="" to="" a="" pointer="" object="" when="" the="" mouse="" is="" positioned="" in="" the="" window="" to="" which="" the="" pointer="" has="" been="" attached="" there="" is="" no="" need="" to="" explicitly="" open="" a="" timer="" object,="" as="" addto="" and="" write="" messages="" automatically="" open="" the="" timer="" seealso:="" ah="12h/BH=0Dh,AH=12h/BH=14h" lock""="" --------q-1512--bh0d-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "close"="" -="" close="" object="" ah="12h" bh="0Dh" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" timer:="" close="" keyboard:="" detach="" from="" window="" and="" discard="" queued="" input="" pointer:="" stop="" taking="" input="" panel:="" close="" mailbox:="" close,="" unlock,="" and="" discard="" any="" pending="" messages="" 02h="" close="" given="" task's="" mailbox="" (task's="" handle="" on="" top="" of="" stack)="" 03h="" close="" task's="" default="" mailbox="" 04h="" close="" keyboard="" object="" (handle="" on="" top="" of="" stack)="" 05h="" close="" task's="" default="" keyboard="" 06h="" close="" given="" task's="" objectq="" (task's="" handle="" on="" top="" of="" stack)="" 07h="" close="" current="" task's="" objectq="" notes:="" when="" an="" objectq="" is="" closed,="" each="" object="" in="" the="" objectq="" is="" sent="" an="" erase="" message="" (ah="12h/BH=0Eh)" when="" a="" panel="" object="" is="" closed,="" the="" panel="" file="" and="" any="" panels="" currently="" in="" use="" are="" freed;="" window="" and="" keyboard="" objects="" created="" by="" apply="" are="" not="" affected,="" but="" field="" mode="" input="" ceases="" open="" but="" idle="" timer="" objects="" consume="" a="" small="" amount="" of="" cpu="" time="" seealso:="" ah="12h/BH=0Ch,AH=12h/BH=0Eh,AH=12h/BH=14h" lock""="" --------q-1512--bh0e-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "erase"="" -="" erase="" object="" ah="12h" bh="0Eh" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" window:="" clear="" from="" scroll="" origin="" to="" end="" of="" window="" keyboard:="" discard="" input="" timer:="" cancel="" current="" interval="" pointer:="" discard="" all="" pending="" messages="" mailbox:="" discard="" all="" pending="" messages="" 01h="" clear="" task's="" default="" window="" from="" scroll="" origin="" to="" end="" 02h="" discard="" all="" queued="" messages="" in="" mailbox="" (handle="" on="" top="" of="" stack)="" 03h="" discard="" all="" queued="" messages="" in="" current="" task's="" default="" mailbox="" 04h="" discard="" all="" input="" queued="" to="" keyboard="" (handle="" on="" top="" of="" stack)="" 05h="" discard="" all="" input="" queued="" to="" task's="" default="" keyboard="" 06h="" remove="" all="" objects="" from="" objectq="" (task's="" handle="" on="" top="" of="" stack)="" 07h="" remove="" all="" objects="" from="" current="" task's="" objectq="" 0ch="" (dv="" 2.26+)="" clear="" window="" of="" task="" owning="" handle="" on="" top="" of="" stack="" 0dh="" (dv="" 2.26+)="" clear="" default="" window="" of="" parent="" of="" current="" task="" note:="" when="" an="" objectq="" is="" erased,="" each="" object="" in="" the="" objectq="" is="" also="" erased="" seealso:="" ah="12h/BH=02h" --------q-1512--bh0f-------------------------="" int="" 15="" -="" topview="" -="" send="" message="" -="" "status"="" -="" get="" object="" status="" ah="12h" bh="0Fh" bl="object" 00h="" handle="" is="" dword="" on="" top="" of="" stack="" timer:="" is="" it="" running?="" pointer:="" return="" status="" of="" last="" message="" panel:="" verify="" success="" of="" last="" open="" or="" apply="" 02h="" return="" status="" of="" last="" msg="" read="" from="" mailbox="" (handle="" on="" stack)="" 03h="" return="" status="" of="" last="" msg="" read="" from="" task's="" default="" mailbox="" 04h="" get="" stat="" of="" last="" msg="" from="" task's="" keyboard="" (task="" handle="" on="" stk)="" 05h="" get="" status="" of="" last="" msg="" from="" task's="" default="" keyboard="" 06h="" return="" whether="" objectq="" is="" open="" or="" not="" (handle="" on="" top="" of="" stack)="" 07h="" return="" whether="" task's="" default="" objectq="" is="" open="" or="" not="" return:="" dword="" on="" top="" of="" stack="" is="" status="" notes:="" if="" object="" is="" a="" panel="" object,="" the="" status="" indicates="" the="" error="" code:="" 00h="" successful="" 14h="" panel="" name="" not="" in="" panel="" directory="" 15h="" not="" enough="" memory="" to="" apply="" panel="" 16h="" invalid="" panel="" format="" 17h="" panel="" file="" already="" open="" 81h-92h="" dos="" error="" codes+80h="" \="" codes=""> 80h indicate
	  95h not enough memory to open panel file	 > that the panel was
	  98h null panel file name			/  not opened
	if object is a timer, the status is:
	  00000000h open but not running
	  40000000h open and running
	  80000000h closed
	if object is an OBJECTQ, the status is:
	  00000000h open
	  80000000h closed
	if object is a keyboard in keystroke mode, the status is the extended
	  character code (scan code) of the last keystroke
	if object is a keyboard in field mode, the status indicates the reason
	  for the last return from the field manager
	  00h Enter key pressed
	  01h Button 1 or keystroke selection
	  02h Button 2
	  03h validation
	  04h auto Enter on field
	  1Bh Escape pressed
	  46h ^Break pressed
	  other: extended code for key terminating input
	the status of mailbox messages sent by the window manager is always 80h
	the status of a pointer message is the same as the status field in the
	  message
SeeAlso: AH=12h/BH=04h"READ"
--------Q-1512--BH10-------------------------
INT 15 - TopView - SEND MESSAGE - "EOF" - GET OBJECT EOF STATUS
	AH = 12h
	BH = 10h
	BL = object
	    00h handle is DWORD on top of stack
		window: return TRUE if logical cursor past end of window
		mailbox: ???
	    01h returns TRUE if logical cursor past end of task's def window
	    02h return ??? for task's mailbox (task's handle on top of stack)
	    03h return ??? for current task's mailbox
	    0Ch (DV 2.26+) check log crsr of window owning handle on top of stk
	    0Dh (DV 2.26+) check log cursor of window of parent task
Return: DWORD on top of stack is status
--------Q-1512--BH11-------------------------
INT 15 - TopView - SEND MESSAGE - "AT" - POSITION OBJECT CURSOR
	AH = 12h
	BH = 11h
	BL = window for which to move cursor
	    00h window's handle is DWORD on top of stack
	    01h task's default window
	    0Ch (DV 2.26+) default window of task owning handle on top of stack
	    0Dh (DV 2.26+) default window of parent of current task
	STACK: DWORD column
	       DWORD row
--------Q-1512--BH11-------------------------
INT 15 - TopView - SEND MESSAGE - "SETNAME" - ASSIGN NAME TO MAILBOX
	AH = 12h
	BH = 11h
	BL = mailbox to name
	    00h DWORD on top of stack is mailbox handle
	    02h use given task's mailbox (task's handle on top of stack)
	    03h use current task's default mailbox
	STACK: DWORD length of name
	       DWORD address of name
SeeAlso: AH=12h/BH=12h"GETNAME",AX=DE0Eh
--------Q-1512--BX1100-----------------------
INT 15 - TopView - SEND MESSAGE - "SETSCALE" - SET POINTER SCALE FACTOR
	AH = 12h
	BX = 1100h
	STACK: DWORD object handle for pointer object
	       DWORD number of colums to scale pointer position to
	       DWORD number of rows to scale pointer position to
SeeAlso: AH=12h/BX=1200h
--------Q-1512--BH12-------------------------
INT 15 - TopView - SEND MESSAGE - "READN" - GET NEXT N OBJECT BYTES
	AH = 12h
	BH = 12h
	BL = window to read from
	    00h handle is DWORD on top of stack
	    01h read next N chars or attributes on task's default window
	    0Ch (DV 2.26+) read window of task owning handle on top of stack
	    0Dh (DV 2.26+) read default window of parent of current task
	STACK: DWORD count
Return: STACK: DWORD number of bytes actually read
	       DWORD address of buffer containing data
Notes:	reading starts at the current logical cursor position; the cursor is
	  updated to point at the character following the last one read
	any translucent blanks (FFh) which are visible on screen are changed
	  to the character which is seen through them
	the string produced by the read is placed in an input buffer which may
	  be reused by the next READ or READN of a window
	window stream opcodes D8h and D9h determine whether the read returns
	  characters or attributes
SeeAlso: AH=12h/BH=04h"WINDOW",AH=12h/BH=05h"WINDOW"
--------Q-1512--BH12-------------------------
INT 15 - DESQview 2.50+ - SEND MESSAGE - "GETNAME" - GET NAME OF MAILBOX
	AH = 12h
	BH = 12h
	BL = mailbox for which to retrieve name
	    00h DWORD on top of stack is mailbox handle
	    02h use given task's mailbox (task's handle on top of stack)
	    03h use current task's default mailbox
	STACK: DWORD length of buffer for name
	       DWORD pointer to buffer
Return: STACK: DWORD length of returned name (or size of buffer, if less)
Program: DESQview 2.5x is distributed as part of DESQview/X 1.0x
Note:	the returned name is not NUL-terminated
SeeAlso: AH=12h/BH=11h"SETNAME",AX=DE0Eh
--------Q-1512--BX1200-----------------------
INT 15 - TopView - SEND MESSAGE - "GETSCALE" - GET POINTER SCALE FACTOR
	AH = 12h
	BX = 1200h
	STACK: DWORD object handle for pointer
Return: STACK: DWORD pointer pos scaled as if window were this many colums wide
	       DWORD pointer pos scaled as if window were this many rows high
SeeAlso: AH=12h/BX=1100h
--------Q-1512--BH13-------------------------
INT 15 - TopView - SEND MESSAGE - "REDRAW" - REDRAW WINDOW
	AH = 12h
	BH = 13h
	BL = window object
	    00h DWORD on top of stack is handle for window to redraw
	    01h redraw task's default window
	    0Ch (DV 2.26+) redraw window of task owning handle on top of stack
	    0Dh (DV 2.26+) redraw default window of parent of current task
SeeAlso: AH=12h/BH=05h"WINDOW",AH=12h/BH=0Eh
--------Q-1512--BH13-------------------------
INT 15 - DESQview 2.50+ - SEND MESSAGE - "READINTO" - GET NEXT MAIL MESSAGE
	AH = 12h
	BH = 13h
	BL = mailbox from which to read
	    00h DWORD on top of stack is mailbox handle
	    02h use given task's mailbox (task's handle on top of stack)
	    03h use current task's default mailbox
	STACK: DWORD size of buffer in bytes
			 DWORD pointer to buffer
Return: STACK: DWORD number of bytes read
Program: DESQview 2.5x is distributed as part of DESQview/X 1.0x
Notes:	this call blocks if no input is available, but will return less than
	  the requested number of bytes if some (but insufficient) data is
	  available
	use this call instead of AH=12h/BH=04h if the mailbox has flag bits
	  4 or 5 set, as common memory may be exhausted by that call when
	  attempting to read the next message
SeeAlso: AH=12h/BH=04h"READ",AH=12h/BH=05h,AH=12h/BH=16h
--------Q-1512--BX1300-----------------------
INT 15 - TopView - SEND MESSAGE - "SETICON" - SPECIFY POINTER ICON
	AH = 12h
	BX = 1300h
	STACK: DWORD object handle for pointer
	       DWORD character to use for pointer
Return: STACK popped
--------Q-1512--BH14-------------------------
INT 15 - TopView - SEND MESSAGE - "SETESC" - SET ESCAPE ROUTINE ADDRESS
	AH = 12h
	BH = 14h
	BL = message modifier
	    00h handle is DWORD on top of stack
		 01h define user stream
	    04h intercept keystrokes from KEYBOARD to window (handle on stack)
	    05h intercept keystrokes from task's default KEYBOARD to a window
	STACK: (if window)   DWORD user stream number (14h-1Fh)
			     DWORD address of FAR user stream handler
	       (if keyboard) DWORD address of FAR filter function (see #0341)
Return: STACK popped

(Table 0341)
Values keyboard filter function is called with when keyboard is in field mode:
	AL = character
	AH = 00h or extended ASCII code if AL = 00h
	BL = field number
	CH = cursor column
	CL = cursor row
	DL = field type modifier (sixth item in field table entry)
	DH = seventh item in field table entry
	ES:SI = window's handle
	DS:DI -> field table entry for field containing the cursor
Return:	AH = action to take
	    00h use keystroke
	    01h ignore keystroke
	    FFh beep and ignore keystroke
Note: the filter function is not allowed to make INT 15, DOS, or BIOS calls
--------Q-1512--BH14-------------------------
INT 15 - TopView - SEND MESSAGE - "LOCK" - REQUEST EXCLUSIVE ACCESS TO RESOURCE
	AH = 12h
	BH = 14h
	BL = object
	    00h mailbox handle is DWORD on top of stack
	    02h use given task's mailbox (task's handle on top of stack)
	    03h use current task's default mailbox
Return: STACK popped if BL=00h
Note:	release exclusive access by sending CLOSE message to mailbox
	access may be requested multiple times, and requires multiple CLOSEs
SeeAlso: AH=12h/BH=0Dh
--------Q-1512--BH15-------------------------
INT 15 - DESQview v2.20+ - SEND MESSAGE - "SETFLAGS" - SET OBJECT FLAGS
	AH = 12h
	BH = 15h
	BL = object
	    00h DWORD on top of stack
		mailbox, keyboard, or pointer only
	    02h mailbox for task whose handle is on top of stack
	    03h mailbox for current task
	    04h keyboard for task whose handle is on top of stack
		 05h keyboard for current task
	STACK: DWORD flags (see #0342,#0343)
Return: STACK popped
Notes:	only available if the API level has been set to at least 2.20
	equivalent to performing SUBFROM and ADDTO calls on the object
	if a mailbox has bits 4 or 5 set, you must use "READINTO" rather than
	  "READ" (see AH=12h/BX=1300h"READINTO") to retrieve messages
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=16h

Bitfields for DESQview mailbox object flags:
Bit(s)	Description	(Table 0342)
 0	all mail messages in common memory
 1	allow write even if closed
 2	don't erase messages when mailbox closed
 4	(DV/X) append messages with like status and sender (stream-oriented 
	  mail)
 5	(DV/X) store mail in expanded memory (pool grows as needed)
 6	(DV/X) make mailbox into non-owned mailbox

Bitfields for DESQview keyboard object flags:
Bit(s)	Description	(Table 0343)
 5	exclusive input when keyboard in use for input
--------Q-1512--BH16-------------------------
INT 15 - DESQview v2.20+ - SEND MESSAGE - "GETFLAGS" - GET OBJECT FLAGS
	AH = 12h
	BH = 16h
	BL = object
	    00h DWORD on top of stack
		mailbox, keyboard, or pointer only
	    02h mailbox for task whose handle is on top of stack
	    03h mailbox for current task
	    04h keyboard for task whose handle is on top of stack
	    05h keyboard for current task
Return: STACK: DWORD current control flags (see #0342,#0343)
Notes:	only available if the API level has been set to at least 2.20
	if a mailbox has bits 4 or 5 set, you must use "READINTO" rather than
	  "READ" (see AH=12h/BH=13h"READINTO") to retrieve messages
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=13h"READINTO",AH=12h/BH=15h
--------Q-1512--BH17-------------------------
INT 15 - DESQview v2.42-2.52 - BUG
	AH = 12h
	BH = 17h
	BL = object
	    00h DWORD on top of stack
		mailbox, keyboard, or pointer only
	    02h mailbox for task whose handle is on top of stack
		 03h mailbox for current task
	    04h keyboard for task whose handle is on top of stack
	    05h keyboard for current task
Notes:	due to a fencepost error, message 17h is accepted for mailboxes,
	  keyboards, and pointers, but causes a random branch
	DESQview v2.50-2.52 are distributed as part of DESQview/X v1.02
--------Q-1512--BH80-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 00h WITH ERROR RECOVERY
	AH = 12h
	BH = 80h
Note:	this function is identical to AH=12h/BH=00h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=00h

(Table 0344)
Values for DESQview error code:
 00h	no error
 01h	invalid values
 02h	alias invalid
 03h	handle valid but wrong type
 04h	invalid handle
--------Q-1512--BH81-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 01h WITH ERROR RECOVERY
	AH = 12h
	BH = 81h
Note:	this function is identical to AH=12h/BH=01h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=01h
--------Q-1512--BH82-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 02h WITH ERROR RECOVERY
	AH = 12h
	BH = 82h
Note:	this function is identical to AH=12h/BH=02h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=02h
--------Q-1512--BH83-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 03h WITH ERROR RECOVERY
	AH = 12h
	BH = 83h
Note:	this function is identical to AH=12h/BH=03h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=03h,AH=12h/BX=0300h
--------Q-1512--BH84-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 04h WITH ERROR RECOVERY
	AH = 12h
	BH = 84h
Note:	this function is identical to AH=12h/BH=04h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=04h,AH=12h/BX=0400h
--------Q-1512--BH85-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 05h WITH ERROR RECOVERY
	AH = 12h
	BH = 85h
Note:	this function is identical to AH=12h/BH=05h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=05h
--------Q-1512--BH86-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 06h WITH ERROR RECOVERY
	AH = 12h
	BH = 86h
Note:	this function is identical to AH=12h/BH=06h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=06h
--------Q-1512--BH87-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 07h WITH ERROR RECOVERY
	AH = 12h
	BH = 87h
Note:	this function is identical to AH=12h/BH=07h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=07h
--------Q-1512--BH88-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 08h WITH ERROR RECOVERY
	AH = 12h
	BH = 88h
Note:	this function is identical to AH=12h/BH=08h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=08h
--------Q-1512--BH89-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 09h WITH ERROR RECOVERY
	AH = 12h
	BH = 89h
Note:	this function is identical to AH=12h/BH=09h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=09h
--------Q-1512--BH8A-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Ah WITH ERROR RECOVERY
	AH = 12h
	BH = 8Ah
Note:	this function is identical to AH=12h/BH=0Ah, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=0Ah
--------Q-1512--BH8B-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Bh WITH ERROR RECOVERY
	AH = 12h
	BH = 8Bh
Note:	this function is identical to AH=12h/BH=0Bh, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=0Bh
--------Q-1512--BH8C-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Ch WITH ERROR RECOVERY
	AH = 12h
	BH = 8Ch
Note:	this function is identical to AH=12h/BH=0Ch, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=0Ch
--------Q-1512--BH8D-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Dh WITH ERROR RECOVERY
	AH = 12h
	BH = 8Dh
Note:	this function is identical to AH=12h/BH=0Dh, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=0Dh
--------Q-1512--BH8E-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Eh WITH ERROR RECOVERY
	AH = 12h
	BH = 8Eh
Note:	this function is identical to AH=12h/BH=0Eh, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=0Eh
--------Q-1512--BH8F-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Fh WITH ERROR RECOVERY
	AH = 12h
	BH = 8Fh
Note:	this function is identical to AH=12h/BH=0Fh, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=0Fh
--------Q-1512--BH90-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 10h WITH ERROR RECOVERY
	AH = 12h
	BH = 90h
Note:	this function is identical to AH=12h/BH=10h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=10h
--------Q-1512--BH91-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 11h WITH ERROR RECOVERY
	AH = 12h
	BH = 91h
Note:	this function is identical to AH=12h/BH=11h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=11h,AH=12h/BX=1100h
--------Q-1512--BH92-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 12h WITH ERROR RECOVERY
	AH = 12h
	BH = 92h
Note:	this function is identical to AH=12h/BH=12h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=12h,AH=12h/BX=1200h
--------Q-1512--BH93-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 13h WITH ERROR RECOVERY
	AH = 12h
	BH = 93h
Note:	this function is identical to AH=12h/BH=13h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=13h
--------Q-1512--BH94-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 14h WITH ERROR RECOVERY
	AH = 12h
	BH = 94h
Note:	this function is identical to AH=12h/BH=14h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=14h
--------Q-1512--BH95-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 15h WITH ERROR RECOVERY
	AH = 12h
	BH = 95h
Note:	this function is identical to AH=12h/BH=15h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=15h
--------Q-1512--BH96-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 16h WITH ERROR RECOVERY
	AH = 12h
	BH = 96h
Note:	this function is identical to AH=12h/BH=16h, except that DESQview will
	  not pop up a "Programming Error" window, instead returning an error
	  code in AL (see #0344)
SeeAlso: AH=12h/BH=16h
--------T-1513-------------------------------
INT 15 - VMiX - "sys_wake" - WAKE SLEEPING PROCESS
	AH = 13h
	STACK:	WORD	process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=12h"VMiX"
--------T-1513-------------------------------
INT 15 - MultiDOS Plus - GET TASK CONTROL BLOCK
	AH = 13h
Return: BX:AX -> task control block (see #0345)
SeeAlso: AH=15h"MultiDOS"

Format of MultiDOS Plus v4.0 task control block:
Offset	Size	Description	(Table 0345)
 00h	DWORD	pointer to next TCB
 04h  8 BYTEs	ASCIZ task name
 0Ch  2 BYTEs	???
 0Eh	WORD	task PSP segment
 10h	WORD	abort/suspend flags
 12h	WORD	current screen segment (see AH=0Bh,AH=0Ch)
 14h	WORD	priority level (0000h-FFFEh)
 16h	WORD	time slice counter
 18h  2 BYTEs	???
 1Ah	WORD	suspend timer value
 1Ch	WORD	stack segment
 1Eh	WORD	stack pointer
 20h	WORD	display type
 22h	WORD	display memory
 24h  2 BYTEs	???
 26h	WORD	termination count
 28h	WORD	equipment flag for BIO10 driver
 2Ah	BYTE	background CRT mode
 2Bh	WORD	screen width in columns
 2Dh	WORD	screen size in bytes
 2Fh	WORD	segment of physical screen memory
 31h 16 BYTEs	eight cursor positions
 41h	WORD	current cursor shape
 43h	BYTE	active display page
 44h	WORD	CRT controller I/O port base
 46h  2 BYTEs	???
 48h	WORD	foreground task flag
 4Ah  6 BYTEs	???
 50h	WORD	saved video segment (see AH=0Bh,AH=0Ch)
 52h	DWORD	old INT 22
 56h	DWORD	old INT 23
 5Ah	DWORD	old INT 24
 5Eh	WORD	top of memory for task
 60h  4 BYTEs	???
 64h	WORD	DTA segment (see INT 21/AH=1Ah)
 66h	WORD	DTA offset
 68h  4 BYTEs	???
 6Ch	BYTE	current ANSI.SYS attribute
 6Dh	BYTE	current ANSI.SYS column
 6Eh	BYTE	current ANSI.SYS row
 6Fh	BYTE	current ANSI.SYS display state
 70h	BYTE	maximum ANSI.SYS columns
 71h	BYTE	current ANSI.SYS page
 72h	WORD	saved ANSI.SYS cursor position
 74h	BYTE	ANSI.SYS parameter buffer index
 75h	BYTE	current ANSI.SYS screen mode
 76h	BYTE	ANSI.SYS wrap flag
 77h  6 BYTEs	ANSI.SYS parameter buffer
 7Dh	BYTE	ANSI.SYS keyboard DSR state
 7Eh  7 BYTEs	ANSI.SYS keyboard DSR buffer
 85h  3 BYTEs	???
 88h 16 BYTEs	request header for DOS driver calls
 98h 14 BYTEs	???
 A6h	WORD	segment of EMS map if EMS task
 A8h	WORD	flag: task makes EMS calls
 AAh	WORD	EMS handle for task
 ACh	WORD	keyboard shift state
 AEh 12 BYTEs	???
 BAh	WORD	TCB of parent if child task
 BCh	WORD	termination code
 BEh	WORD	COM port number
 C0h  4 BYTEs	???
 C4h	WORD	current IRQ number
 C6h  2 BYTEs	???
 C8h	WORD	miscellaneous flag word
 CAh  2 BYTEs	???
 CCh	DWORD	old INT 10
 D0h	WORD	EMS alternate map set number
 D2h 414 BYTEs	DOS current disk and directory context (optional)
--------T-1514-------------------------------
INT 15 - VMiX - "sys_clrwindow" - CLEAR WINDOW
	AH = 14h
	STACK:	WORD	top left corner of window (high byte = row, low = col)
		WORD	bottom right corner of window (high = row, low = col)
Return: AX = status (SYS_OK)
Note:	clears window to color set with "sys_setcolors" (AH=18h)
SeeAlso: AH=15h"VMiX",AH=16h"VMiX",AH=18h"VMiX",AH=1Fh"VMiX"
--------T-1514-------------------------------
INT 15 - MultiDOS Plus - CHECK IF MultiDOS FOREGROUND OR BACKGROUND
	AH = 14h
Return: AX = current state
	    0000h MultiDOS Plus command prompt is background task
	    0001h command prompt is foreground task
SeeAlso: AH=0Bh"MultiDOS"
--------T-1515-------------------------------
INT 15 - VMiX - "sys_setbwindow" - SET BANNER WINDOW MESSAGE
	AH = 15h
	STACK:	DWORD	pointer to ASCIZ banner message for top of screen
Return: AX = status (SYS_OK)
SeeAlso: AH=14h"VMiX",AH=16h"VMiX"
--------T-1515-------------------------------
INT 15 - MultiDOS Plus - GET SYSTEM BLOCK
	AH = 15h
Return: BX:AX -> system block (see #0346)
SeeAlso: AH=13h"MultiDOS"

Format of MultiDOS Plus 4.0 system block:
Offset	Size	Description	(Table 0346)
 00h	WORD	segment of system control block
 02h	WORD	redirection flag set by /NOREDIRECT
 04h	WORD	no-INT 10 flag set by /NO10
 06h	DWORD	old INT 10
 0Ah	DWORD	new INT 10
 0Eh	DWORD	pointer to WORD with current TCB offset (see #0345)
 12h	DWORD	pointer to WORD with idle task TCB offset
 16h	DWORD	pointer to WORD with foreground TCB offset (see #0345)
 1Ah	DWORD	pointer to WORD with MultiDOS TCB offset (see #0345)
 1Eh	WORD	Task Control Block size
 20h	WORD	number of TCBs
 22h	WORD	flag: EMS present
 24h	WORD	EMS page frame base segment
 26h	WORD	16K pages in EMS page frame
 28h	WORD	base segment for conventional memory tasks
 2Ah	WORD	conventional memory size in paragraphs
 2Ch	DWORD	pointer to list of queue pointers
--------T-1516-------------------------------
INT 15 - VMiX - "sys_setwindow" - SET ROOT WINDOW SIZE AND HOME CURSOR
	AH = 16h
	STACK:	DWORD	pointer to I/O Request Packet
		WORD	top left corner of window (high byte = row, low = col)
		WORD	bottom right corner of window (high = row, low = col)
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=14h"VMiX",AH=17h"VMiX"
--------T-1516-------------------------------
INT 15 - MultiDOS Plus - INITIALIZATION
	AH = 16h
Note:	used internally during initialization; any other calls will cause
	  unpredictable results
--------T-1517-------------------------------
INT 15 - VMiX - "sys_getcolors" - GET CONSOLE WINDOW COLORS
	AH = 17h
Return: AH = foreground color
	AL = background color
SeeAlso: AH=16h"VMiX",AH=18h"VMiX"
--------T-1517-------------------------------
INT 15 - MultiDOS Plus - MAP IRQ
	AH = 17h
	AL = IRQ to map (01h-0Fh)
	BX = offset of task control block (see #0345) to associate with IRQ
Return: AX = status
	    0000h successful
	    other invalid IRQ
Note:	the EMS map of the specified TCB is associated with the given interrupt
SeeAlso: AH=18h"MultiDOS",AH=19h"MultiDOS"
--------T-1518-------------------------------
INT 15 - VMiX - "sys_setcolors" - SET CONSOLE COLORS
	AH = 18h
	STACK:	WORD	new background/foreground colors
			bits 3-0: foreground
			bits 7-4: background
			bits 15-8: unused
Return: AX = color
SeeAlso: AH=14h"VMiX",AH=17h"VMiX",AH=19h"VMiX"
--------T-1518-------------------------------
INT 15 - MultiDOS Plus - UNMAP IRQ
	AH = 18h
	AL = IRQ to unmap (01h-0Fh)
Return: AX = status
	    0000h successful
	    0001h invalid IRQ
Note:	results are unpredictable if the IRQ has not been mapped
SeeAlso: AH=17h"MultiDOS",AH=19h"MultiDOS"
--------T-1519-------------------------------
INT 15 - VMiX v2+ - "sys_setconwn" - SET WINDOW COLORS
	AH = 19h
	STACK:	WORD	new background/foreground colors
			bits 3-0: foreground
			bits 7-4: background
			bits 15-8: unused
Return: AX = color
SeeAlso: AH=18h"VMiX"
--------T-1519-------------------------------
INT 15 - MultiDOS Plus - UNMAP ALL IRQs
	AH = 19h
Return: AX destroyed
Note:	for MultiDOS internal use only
SeeAlso: AH=17h"MultiDOS",AH=18h"MultiDOS"
--------T-151A-------------------------------
INT 15 - VMiX v2+ - "sys_sint" - INVOKE SOFTWARE INTERRUPT
	AH = 1Ah
	STACK:	WORD	interrupt number
		DWORD	pointer to register structure
Return: AX = returned flags
--------T-151A-------------------------------
INT 15 - MultiDOS Plus - MAP SEMAPHORE NAME TO NUMBER
	AH = 1Ah
	DS:SI -> 8-byte name
Return: AL = status
	    00h successful
		AH = semaphore number (20h-3Fh)
	    04h out of string space
Notes:	all eight bytes of the name are significant
	if the name does not already exist, it is added to the name table and
	  associated with a free semaphore number
	names cannot be destroyed
SeeAlso: AH=1Bh"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
--------T-151B-------------------------------
INT 15 - VMiX v2+ - "sys_blkmov" - MOVE MEMORY BLOCK
	AH = 1Bh
	STACK:	DWORD	source address
		DWORD	destination address
		WORD	number of words to move
Return: nothing
--------T-151B-------------------------------
INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE BY NAME
	AH = 1Bh
	DS:SI -> 8-byte name
Return: AH = status
	    00h successful
	    02h invalid semaphore number
	    03h caller already owns semaphore
	    04h out of string space
Notes:	(see AH=01h"MultiDOS")
	equivalent to AH=1Ah followed by AH=01h
SeeAlso: AH=01h"MultiDOS",AH=1Ah"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
--------T-151C-------------------------------
INT 15 - VMiX v2+ - "sys_bitblt" - PUT GRAPHICAL OBJECT AT CURSOR POSITION
	AH = 1Ch
	STACK:	WORD	AND/OR pixel with background (00h = OR, 01h = AND)
		DWORD	pointer to object bitmap
		WORD	object width in pixels
		WORD	object height in pixels
Return: nothing
SeeAlso: AH=1Dh"VMiX"
--------T-151C-------------------------------
INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE BY NAME
	AH = 1Ch
	DS:SI -> 8-byte name
Return: AH = status
	    00h successful
	    01h not semaphore owner
	    02h invalid semaphore number
	    04h out of string space
Notes:	(see AH=02h"MultiDOS")
	equivalent to AH=1Ah followed by AH=02h
SeeAlso: AH=02h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Dh"MultiDOS"
--------T-151D-------------------------------
INT 15 - VMiX v2+ - "sys_getfont" - GET CURRENT CONSOLE GRAPHICS FONT
	AH = 1Dh
Return: AX = current font number (00h-03h)
SeeAlso: AH=1Ch"VMiX",AH=1Eh"VMiX"
--------T-151D-------------------------------
INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE BY NAME
	AH = 1Dh
	DS:SI -> 8-byte name
Return: AH = status
	    00h semaphore not in use
	    01h semaphore owned by another task
		 02h invalid semaphore number
	    03h caller owns semaphore
	    04h out of string space
Notes:	(see AH=10h"MultiDOS")
	equivalent to AH=1Ah followed by AH=10h
SeeAlso: AH=10h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Ch"MultiDOS"
--------T-151E-------------------------------
INT 15 - VMiX v2+ - "sys_setfont" - SET CONSOLE GRAPHICS FONT
	AH = 1Eh
	STACK: WORD new font number (00h-03h)
Return: AX = current font number (00h-03h)
SeeAlso: AH=1Dh"VMiX"
--------T-151E00-----------------------------
INT 15 - MultiDOS Plus - CLEAR EVENT COUNTER
	AX = 1E00h
	DX = event/trigger number (00h-3Fh)
Return: AH = status
	    00h successful
SeeAlso: AX=1E01h,AX=1E02h
--------T-151E01-----------------------------
INT 15 - MultiDOS Plus - TRIGGER EVENT
	AX = 1E01h
	DX = event/trigger number (00h-3Fh)
Return: AH = status
	    00h successful
	    01h invalid event/trigger number
Notes:	schedules any task waiting for event; if no task is waiting, the event
	  counter is incremented (and will roll over if it was 65535)
	may be invoked by interrupt handler
SeeAlso: AX=1E00h,AX=1E02h
--------T-151E02-----------------------------
INT 15 - MultiDOS Plus - WAIT FOR EVENT
	AX = 1E02h
	DX = event/trigger number (00h-3Fh)
Return: AH = status
	    00h successful
	    01h invalid event/trigger number
Note:	if the event counter is zero, the task is suspended until the event is
	  triggered with AX=1E01h; else, the counter is decremented and the
	  call returns immediately
SeeAlso: AX=1E00h,AX=1E01h
--------T-151E08-----------------------------
INT 15 - MultiDOS Plus 4.01 - SET CONTEXT-SWITCH FUNCTIONS
	AX = 1E08h
	DX:BX -> context save handler (see #0347)
	DX:CX -> context restore handler (see #0347)
Note:	handlers may be removed by setting addresses to 0000h:0000h

(Table 0347)
Values MultiDOS Plus context-switch handlers are called with:
	ES:BX -> task's TCB
Return: all registers preserved
--------T-151F-------------------------------
INT 15 - VMiX v2.???+ - "sys_scrollwin" - SCROLL WINDOW
	AH = 1Fh
	STACK:	WORD	top left corner of window (high byte = row, low = col)
		WORD	bottom right corner of window
Return: AX = status (SYS_OK)
SeeAlso: AH=14h"VMiX",AH=18h"VMiX"
--------T-151F-------------------------------
INT 15 - MultiDOS Plus v4.01 - GET MEMORY PARAMETERS
	AH = 1Fh
Return: BX = first segment of conventional memory
	DX = first segment of EMS swap frame into which MultiDOS will load
		programs
--------T-1520-------------------------------
INT 15 - MultiDOS Plus v4.01 - CHECK IF MULTITASKING ENABLED
	AH = 20h
Return: AX = current state
		 0000h multitasking enabled
	    other TCB of task that disabled multitasking
SeeAlso: AH=0Dh"MultiDOS",AH=13h"MultiDOS"
--------c-152000-----------------------------
INT 15 U - DOS 3+ PRINT.COM - DISABLE CRITICAL REGION FLAG
	AX = 2000h
Desc:	stop setting user flag on entry to PRINT critical region
Note:	also supported by PC Network v1.00 RECEIVER.COM
SeeAlso: AX=2001h
--------c-152001-----------------------------
INT 15 U - DOS 3+ PRINT.COM - SET CRITICAL REGION FLAG
	AX = 2001h
	ES:BX -> byte which is to be incremented while in a DOS call
Desc:	specify a user flag which PRINT should set to let an interested
	  application know it is in a critical region
Note:	also supported by PC Network v1.00 RECEIVER.COM
SeeAlso: AX=2000h
--------O-152010-----------------------------
INT 15 - OS HOOK - SETUP SYSREQ ROUTINE (AT,XT286,PS50+)
	AX = 2010h
	???
Return: ???
SeeAlso: AX=2011h
--------O-152011-----------------------------
INT 15 - OS HOOK - COMPLETION OF SYSREQ FUNCTION (AT,XT286,PS50+)
	AX = 2011h
	???
Return: ???
SeeAlso: AX=2010h
--------B-1521-------------------------------
INT 15 - SYSTEM - POWER-ON SELF-TEST ERROR LOG (PS50+)
	AH = 21h
	AL = subfunction
	    00h read POST log
	    01h write POST log
		BH = device ID
		BL = error code
Return: CF set on error
	AH = status (00h OK, 01h list full, 80h invalid cmd, 86h unsupported)
	if function 00h:
	   BX = number of error codes stored
	   ES:DI -> error log
Notes:	the log is a series of words, the first byte of which identifies the
	  error code and the second the device.
	supported by AMI PCI BIOS
--------B-1522-------------------------------
INT 15 - SYSTEM - later PS/2s - LOCATE ROM BASIC
	AH = 22h
Return: CF set on error
	    AH = status (86h if function not supported)
	CF clear on success
	    AH = 00h
	    ES:BX -> ROM BASIC
Note:	if this function is not supported, ROM BASIC is at F600h:0000h
SeeAlso: INT 86"BASIC",INT F0"BASIC"
--------B-152300-----------------------------
INT 15 U - SYSTEM - PS/1s - GET ??? CMOS DATA
	AX = 2300h
Return: CF clear if successful
	    CL = value of CMOS location 2Dh
	    CH = value of CMOS location 2Eh
	CF set on error
	    AH = error code (80h,86h)
SeeAlso: AX=2301h,AX=2304h,AX=2305h
--------B-152301-----------------------------
INT 15 U - SYSTEM - PS/1s - SET ??? CMOS DATA
	AX = 2301h
	CL = new value for CMOS location 2Dh
	CH = new value for CMOS location 2Eh
Return: CF clear if successful
	CF set on error
	    AH = error code (80h,86h)
Note:	sets the contents of CMOS locations 2Dh and 2Eh
SeeAlso: AX=2300h,AX=2304h,AX=2305h
--------B-152304-----------------------------
INT 15 U - SYSTEM - PS/1s - SYSTEM SETUP
	AX = 2304h
	DX = segment of 32K buffer
Return: CF clear if successful
	    AX = 0003h (left over from setting video mode 3)
	    BX,CX,DX,BP,DS,ES destroyed
	CF set on error
	    AH = error code (80h,86h)
SeeAlso: AX=2301h,AX=2305h
----------152305-----------------------------
INT 15 U - SYSTEM - PS/1s - GET PROCESSOR SPEED
	AX = 2305h
Return: CF clear if successful
	    AL = processor speed in MHz
	CF set on error
	    AL = FFh (speed > 80 MHz)
	    AL = error code (80h,86h = unsupported function)
SeeAlso: AX=2301h,AX=2304h,AH=BCh
--------b-152400-----------------------------
INT 15 - SYSTEM - later PS/2s - DISABLE A20 GATE
	AX = 2400h
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status
		01h keyboard controller is in secure mode
		86h function not supported
Note:	also supported by Qualitas 386MAX v6.01+
SeeAlso: AX=2401h,AX=2402h,AX=2403h
--------b-152401-----------------------------
INT 15 - SYSTEM - later PS/2s - ENABLE A20 GATE
	AX = 2401h
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status
		01h keyboard controller is in secure mode
		86h function not supported
Note:	also supported by Qualitas 386MAX v6.01+
SeeAlso: AX=2400h,AX=2402h
--------b-152402-----------------------------
INT 15 - SYSTEM - later PS/2s - GET A20 GATE STATUS
	AX = 2402h
Return: CF clear if successful
	    AH = 00h
	    AL = current state (00h disabled, 01h enabled)
	CF set on error
	    AH = status
		01h keyboard controller is in secure mode
		86h function not supported
Note:	also supported by Qualitas 386MAX v6.01+
SeeAlso: AX=2400h,AX=2401h
--------b-152403-----------------------------
INT 15 - SYSTEM - later PS/2s - QUERY A20 GATE SUPPORT
	AX = 2403h
Return: CF clear if successful
	    AH = 00h
	    BX = status of A20 gate support (see #0348)
	CF set on error
	    AH = status
		01h keyboard controller is in secure mode
		86h function not supported
Note:	also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
BUG:	at one point early in processing INT 15/AH=24h, the AMI PCI BIOS
	  version 1.00.05.AX1 compares whether AL==03h instead of AL>=03h,
	  thus causing a random branch on any value of AL greater than 3.
SeeAlso: AX=2402h

Bitfields for A20 gate support status:
Bit(s)	Description	(Table 0348)
 0	supported on keyboard controller
 1	supported with bit 1 of I/O port 92h
 15	additional data is available (location not yet defined)
----------153000-----------------------------
INT 15 - Object Kernel for DOS - INSTALLATION CHECK
	AX = 3000h
Return: AX:BX = 4F42h:4A21h ('OBJ!') if installed
	    CX = resident segment
Program: the Object Kernel is a program by M.W. Pieters which is currently
	  under development
SeeAlso: AX=3001h,AX=3008h
----------153001-----------------------------
INT 15 - Object Kernel for DOS - GET STATUS BLOCK
	AX = 3001h
Return: AX = FFFFh
	ES:DI -> status block
SeeAlso: AX=3000h,AX=3008h
----------153002-----------------------------
INT 15 - Object Kernel for DOS - KILL PROCESS
	AX = 3002h
	(not yet implemented)
SeeAlso: AX=3000h
----------153003-----------------------------
INT 15 - Object Kernel for DOS - STOP PROCESS
	AX = 3003h
	(not yet implemented)
SeeAlso: AX=3000h
----------153004-----------------------------
INT 15 - Object Kernel for DOS - START PROCESS
	AX = 3004h
	(not yet implemented)
SeeAlso: AX=3000h
----------153005-----------------------------
INT 15 - Object Kernel for DOS - RESTART PROCESS
	AX = 3005h
	(not yet implemented)
SeeAlso: AX=3000h
----------153006-----------------------------
INT 15 - Object Kernel for DOS - EXECUTE PROCESS
	AX = 3006h
	(not yet implemented)
SeeAlso: AX=3000h
----------153007-----------------------------
INT 15 - Object Kernel for DOS - LIST PROCESSES
	AX = 3007h
	(not yet implemented)
SeeAlso: AX=3000h
----------153008-----------------------------
INT 15 - Object Kernel for DOS - SWITCH ObjectKernel ON/OFF
	AX = 3008h
	BH = new state (00h disabled, 01h enabled)
Return: AX = FFFFh
SeeAlso: AX=3000h,AX=3009h
----------153009-----------------------------
INT 15 - Object Kernel for DOS - RESERVED FOR FUTURE USE
	AX = 3009h to 30FFh
SeeAlso: AX=3000h
Program: the Object Kernel is a program by M.W. Pieters which is currently
	  under development
--------B-1540-------------------------------
INT 15 - SYSTEM - READ/MODIFY PROFILES (CONVERTIBLE)
	AH = 40h
	AL = subfunction
	    00h get system profile in CX and BX
	    01h set system profile from CX and BX
	    02h get internal modem profile in BX
	    03h set internal modem profile from BX
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status (80h = profile execution failed)
--------V-154000-----------------------------
INT 15 - Compaq SLT/286 or Portable 386 - READ LCD/PLASMA TIMEOUT
	AX = 4000h
Return: AX = 4000h
	CL = timeout in minutes, 00h if disabled
SeeAlso: AX=4001h,AX=4600h
--------V-154001-----------------------------
INT 15 - Compaq SLT/286 or Portable 386 - SET LCD/PLASMA TIMEOUT
	AX = 4001h
	CL = timeout in minutes, 00h to disable
Return: AL = status
	    00h timeout modified
	    01h timeout cannot be modified
	    40h timeout cannot be modified
	CL = timeout in minutes, 00h if disabled
SeeAlso: AX=4000h,AX=4601h
--------B-1541-------------------------------
INT 15 - SYSTEM - WAIT ON EXTERNAL EVENT (CONVERTIBLE and some others)
	AH = 41h
	AL = condition type (see #0349)
	BH = condition compare or mask value
	BL = timeout value times 55 milliseconds
	    00h means no timeout
	DX = I/O port address if AL bit 4 set
	ES:DI -> user byte if AL bit 4 clear
Note:	call AH=C0h and examine bit 3 of feature byte 1 to determine whether
	  this function is supported
SeeAlso: AH=83h,AH=86h,AH=C0h

Bitfields for external event wait condition type:
Bit(s)	Description	(Table 0349)
 0-2	condition to wait for
	0 any external event
	1 compare and return if equal
	2 compare and return if not equal
	3 test and return if not zero
	4 test and return if zero
 3	reserved
 4	1=port address, 0=user byte
 5-7	reserved
--------B-1542-------------------------------
INT 15 - SYSTEM - REQUEST POWER OFF (CONVERTIBLE,HP 95LX)
	AH = 42h
	AL = suspend type
	    00h to use system profile
	    01h to force suspend regardless of system profile
Note:	the HP 95LX apparently suspends regardless of the value in AL; on
	  power-up, execution will resume following the instruction calling
	  this function
SeeAlso: AH=44h
--------b-154280-----------------------------
INT 15 - Compaq SLT/286 - ENTER STANDBY
	AX = 4280h
Return: AH = 42h
	CF clear if successful
	CF set if unable to enter standby
SeeAlso: AX=4600h,AX=5307h/BX=0001h/CX=0001h
--------B-1543-------------------------------
INT 15 - SYSTEM - READ SYSTEM STATUS (CONVERTIBLE)
	AH = 43h
Return: AL = status bits (see #0350)

Bitfields for Convertible system status:
Bit(s)	Description	(Table 0350)
 7	power low
 6	external power in use
 5	standby power lost
 4	power activated by alarm
 3	internal modem powered on
 2	RS232/parallel adapter powered on
 1	reserved
 0	LCD detached
--------B-1544-------------------------------
INT 15 - SYSTEM - (DE)ACTIVATE INTERNAL MODEM POWER (CONVERTIBLE)
	AH = 44h
	AL = new modem power state (00h power off, 01h power on)
SeeAlso: AH=42h
--------b-1544C0-----------------------------
INT 15 - Olivetti Quaderno - INITIALIZE DIGITAL SIGNAL PROCESSING???
	AX = 44C0h
	ES:DI -> new DSP procedure (exchanged with CMOS[28h])
	ES:SI -> ??? buffer
Return: ES:DI -> old DSP procedure
	ES:SI buffer filled with ten bytes from CMOS (addresses 14h-1Ch)
	  followed by 00h (addresses 15h-1Ch copied only if less than 21h)
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C1-----------------------------
INT 15 - Olivetti Quaderno - ???
	AX = 44C1h
	???
Return: ???
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C2-----------------------------
INT 15 - Olivetti Quaderno - ???
	AX = 44C2h
	DL = byte to be written to I/O port 350h
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C3h,AX=44C9h
--------b-1544C3-----------------------------
INT 15 - Olivetti Quaderno - GET ???
	AX = 44C3h
Return: DH = bitfields (see #0351)
	DL = value read from I/O port 350h
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C2h,AX=44C9h

Bitfields for Olivetti Quaderno ???:
Bit(s)	Description	(Table 0351)
 5-7	5-7 read from I/O port 351h
 2-4	zero
 1-0	"tres complique"
--------b-1544C4-----------------------------
INT 15 - Olivetti Quaderno - ???
	AX = 44C4h and 44C5h
	???
Return: ???
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C6-----------------------------
INT 15 - Olivetti Quaderno - READ LCD
	AX = 44C6h
Return: DX = FFFFh clock is displayed on LCD display
	DX = other: hex number displayed in first four positions of display
	BH = left alphanumeric character on display (see #0352)
	BL = right alphanumeric character on display (see #0352)
	CL = colon flags (see #0353)
Notes:	the LCD display has the format HH:HH:AA, where H is a hex digit and A
	  is an alphanumeric character
	this function is also supported by XBIOS.COM
SeeAlso: AX=44C7h,AX=44C9h

(Table 0352)
Values for Olivetti Quaderno LCD alphanumeric characters:
 00h-0Fh hex digit
 2Bh	"+"
 2Dh	"-"
 30h-39h "0" to "9"
 41h-5Ah "A" to "Z"
 61h-6Ah "a" to "z"
 else	blank

Bitfields for Olivetti Quaderno LCD colon flags:
Bit(s)	Description	(Table 0353)
 0	left colon on
 1	right colon on
 2-7	unused	
--------b-1544C7-----------------------------
INT 15 - Olivetti Quaderno - WRITE LCD
	AX = 44C7h
	DX = hex display
		 FFFFh display clock and "HI", "Md", or "Lo"
		BH,BL,CL unused
	    other: display specified hex number in first four positions
		BH = left alphanumeric character on display (see #0352)
		BL = right alphanumeric character on display (see #0352)
		CL = colon flags (see #0353)
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C6h
--------b-1544C8-----------------------------
INT 15 - Olivetti Quaderno - ???
	AX = 44C8h
	CL = ??? (00h,02h,21h)
	CH = ???
	???
Return: ???
Note:	this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C9-----------------------------
INT 15 - Olivetti Quaderno - GET XBIOS VERSION
	AX = 44C9h
Return: AL = major version
	AH = minor version
Note:	this function is also supported by XBIOS.COM
--------b-1546-------------------------------
INT 15 U - HP 100LX/200LX - SET POWER OFF TIMEOUT
	AH = 46h
	BX = timeout value in ticks
	    0000h inhibit auto power off
Note:	the 200LX default timeout is 0CCDh = 3277 ticks = approx. 3 min.
--------b-154600-----------------------------
INT 15 - Compaq SLT/286 - READ POWER CONSERVATION/MODEM CONFIGURATION
	AX = 4600h
Return: AH = modem configuration information (see #0354)
	AL = power conservation status information (see #0355)
	BH = default system inactivity timeout (1-21 minutes)
	BL = current system inactivity timeout (1-21 minutes)
	CH = default video display inactivity timeout (1-63 minutes)
	CL = current video display inactivity timeout (1-63 minutes)
	DH = default fixed disk drive inactivity timeout (1-21 minutes)
	DL = current fixed disk drive inactivity timeout (1-21 minutes)
SeeAlso: AX=4280h,AX=4601h,INT 77

Bitfields for Compaq SLT/286 modem configuration information:
Bit(s)	Description	(Table 0354)
 0	powerup state (0 off, 1 on)
 1	modem installed
 2	IRQ line assignment (0 IRQ 4, 1 IRQ 3)
 3	COM port assignment (0 = COM 2, 1 = COM 1)
 4	modem state (0 not assigned, 1 assigned)
 5	modem is on

Bitfields for Compaq SLT/286 power conservation status:
Bit(s)	Description	(Table 0355)
 0	power source (0 internal, 1 external)
 1-2	low battery state
	00 no low battery condition
	01 low battery 1
	10 reserved
	11 low battery 2
 3-4	power conservation mode
	00 automatic, 01 on, 10 off, 11 reserved
--------b-154601-----------------------------
INT 15 - Compaq SLT/286 - MODIFY POWER CONSERVATION/MODEM CONFIGURATION
	AX = 4601h
	BL = system inactivity timeout (1-21 minutes)
	    FFh do not change
	CL = video display inactivity timeout (1-63 minutes)
	    FFh do not change
	DL = current fixed disk drive inactivity timeout (1-21 minutes)
		 FFh do not change
	DH = new modem state (00h turn off, 01h turn on, FFh don't change)
Return: CF clear if successful
	    AH = 00h
	    BL = current system inactivity timeout (1-21 minutes)
	    CL = current video display inactivity timeout (1-63 minutes)
	    DL = current fixed disk drive inactivity timeout (1-21 minutes)
	    DH = modem state (FFh unchanged, 00h turned off, 01h turned on)
	CF set on error
	    AH = error code
		01h input is out of range
		02h no modem present
SeeAlso: AX=4600h,INT 77
--------b-154604-----------------------------
INT 15 - Compaq Contura 486 and "Alladin" 08/05/93 ROMs - GET ???
	AX = 4604h
Return: CF clear if successful
	    AL = byte read from I/O port 03F8h
	CF set on error (not supported)
	    AH = 86h (unsupported function)
Note:	also supported by 7/26/93 LTE Lite 386 ROM
--------b-154605-----------------------------
INT 15 - Compaq Contura 486 and "Alladin" 08/05/93 ROMs - ???
	AX = 4605h
Return: CF clear if successful
	CF set on error (not supported)
	    AH = 86h (unsupported function)
Note:	this function is a NOP (other than clearing CF) in the 08/05/93 version
	  of the Contura 486/486c/486cx and "Aladdin" ROM, and the 7/26/93
	  LTE Lite 386 ROM
--------S-1549-------------------------------
INT 15 U - HP 100LX/200LX - SERIAL INTERFACE SELECT
	AH = 49h
	AL = serial interface
	    00h wired (COM1)
	    01h infrared
Note:	interface should only be changed in deactivated state (see AH=4Ah)
SeeAlso: AH=4Ah"HP"
--------J-154900-----------------------------
INT 15 - Far East MS-DOS - GET BIOS TYPE
	AX = 4900h
Return: CF clear if successful
	    AH = 00h
	    BL = BIOS mode
		00h DOS/V
		01h standard DBCS DOS (hardware DBCS support)
	CF set on error
	    AH = 86h (function not supported)
Note:	in practice, DOS/J returns AH=86h; AX DOS does not support this call
SeeAlso: AH=50h,INT 21/AH=30h
--------S-154A-------------------------------
INT 15 U - HP 100LX/200LX - SERIAL INTERFACE CONTROL
	AH = 4Ah
	AL = control
	    00h deactivate
	    01h activate
Note:	interface selected with AH=49h will be (de)activated
SeeAlso: AH=49h"HP"
--------b-154DD4-----------------------------
INT 15 - HP 95LX/100LX/200LX - INSTALLATION CHECK
	AX = 4DD4h
Return: BX = 4850h ("HP") if HP 95LX/100LX/200LX
	    CX = model
		0101h HP 95LX
		0102h HP 100LX/200LX
	    DH = ???
		02h HP 200LX 2MB BIOS 1.01 A D german
	    DL = ???
		00h HP 95LX
		01h HP 200LX 2MB BIOS 1.01 A D german
SeeAlso: INT 0B"HP 95LX",INT 0F"HP 95LX",INT 5F/AH=00h,INT 60/DI=0100h
SeeAlso: INT 61"HP 95LX"
--------b-154E-------------------------------
INT 15 - HP 95LX - ENABLE/DISABLE LIGHT SLEEP
	AH = 4Eh
	AL = light sleep
	    00h disabled
	    01h enabled
Note:	when light sleep is disabled, the system will continue running at full
	  speed; when enabled, it may automatically slow to conserve batteries
SeeAlso: INT 06"HP 95LX",INT 60/DI=0100h
--------B-154F-------------------------------
INT 15 C - KEYBOARD - KEYBOARD INTERCEPT (AT model 3x9,XT2,XT286,CONV,PS)
	AH = 4Fh
	AL = hardware scan code
	CF set
Return: CF set
	   AL = hardware scan code
	CF clear
	   scan code should be ignored
Note:	called by INT 09 handler to translate scan codes; the INT 09 code does
	  not examine the scan code it reads from the keyboard until after
	  this function returns.  This permits software to rearrange the
	  keyboard; for example, swapping the CapsLock and Control keys, or
	  turning the right Shift key into Enter.
SeeAlso: INT 09,INT 15/AH=C0h
--------J-1550-------------------------------
INT 15 - DOS/V - FONT SUBSYSTEM ACCESS
	AH = 50h
	AL = which function address to retrieve
	    00h "read font" function
	    01h "write font" function
	BL = 00h
	BH = character size (00h single-byte, 01h double-byte)
	DH = width of character cell
	DL = height of character cell
	BP = code page (see #0356)
Return: CF clear if successful
	    AH = 00h
	    ES:BX -> requested function's address
	CF set on error
	    AH = error code (see #0357)
SeeAlso: AH=49h

(Table 0356)
Values for DOS/V code page:
 0	default
 437	US English
 932	Japanese
 934	Korea
 936	China
 938	Taiwan

(Table 0357)
Values for DOS/V error code:
 01h	invalid font type in BH
 02h	BL not zero
 03h	invalid font size
 04h	invalid code page
 80h	unsupported function (PC)
 86h	unsupported function (XT)
--------T-1550-------------------------------
INT 15 - VMIX v2.???+ - "sys_vm_page" - SET NEW VIRTUAL PAGE TABLE
	AH = 50h
	BX = segment of page directory table
	CX = page number of page table
SeeAlso: AH=10h"VMiX",AH=51h"VMiX",AH=52h"VMiX"
--------T-1551-------------------------------
INT 15 - VMiX v2.???+ - "sys_vm_func" - EXECUTE FUNCTION IN PROTECTED MODE
	AH = 51h
	STACK:	DWORD	selector:offset of function
Return: registers as returned by function
Note:	executes function with privilege level 0 (highest privilege)
SeeAlso: AH=10h"VMiX",AH=52h"VMiX"
--------B-155101-----------------------------
INT 15 - SYSTEM - later PS/2s - EXPANSION UNIT, RETURN CONFIGURATION NUMBER
	AX = 5101h
Return: CF set if successful
	    AH = 00h
	    AL = current configuration number
		00h system unit only
		FFh configuration not recognized
	    BX = status flag
		bits 0-14: reserved
		bit 15: additional data is available (location TBD)
	CF clear on error
	    AH = status
		01h expansion unit is not present
		86h function not supported
Note:	CF convention is the reverse of the standard convention for this
	  interrupt.  (Perhaps a typo in the IBM BIOS Tech Ref?)
--------T-1552-------------------------------
INT 15 - VMiX v2.???+ - "sys_vm_init" - INITIALIZE PROTECTED-MODE ENVIRONMENT
	AH = 52h
SeeAlso: AH=50h"VMiX",AH=51h"VMiX"
----------1552-------------------------------
INT 15 C - IBM/MS INT 13 Extensions - MEDIA EJECT INTERCEPT
	AH = 52h
	DL = drive number
Return: CF clear if OK to eject media
	    AH = 00h
	CF set if ejection disallowed
	    AH = error code (B1h,B3h) (see #0140)
Note:	called by the IBM/MS INT 13 Extensions driver/BIOS when an ejection
	  request is made
SeeAlso: INT 13/AH=46h"INT 13 Extensions"
--------p-155300-----------------------------
INT 15 - Advanced Power Management Specification - INSTALLATION CHECK
	AX = 5300h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	    AH = major version (BCD)
	    AL = minor version (BCD)
	    BX = 504Dh ("PM")
		 CX = flags (see #0358)
	CF set on error
	    AH = error code (06h,86h) (see #0359)

Bitfields for APM flags:
Bit(s)	Description	(Table 0358)
 0	16-bit protected mode interface supported
 1	32-bit protected mode interface supported
 2	CPU idle call reduces processor speed
 3	BIOS power management disabled
 4	BIOS power management disengaged (APM v1.1)
 5-7	reserved

(Table 0359)
Values for APM error code:
 01h	power management functionality disabled
 02h	interface connection already in effect
 03h	interface not connected
 04h	real-mode interface not connected
 05h	16-bit protected-mode interface already connected
 06h	16-bit protected-mode interface not supported
 07h	32-bit protected-mode interface already connected
 08h	32-bit protected-mode interface not supported
 09h	unrecognized device ID
 0Ah	invalid parameter value in CX
 0Bh-1Fh reserved for other interface and general errors
 20h-3Fh reserved for CPU errors
 40h-5Fh reserved for device errors
 60h	can't enter requested state
 61h-7Fh reserved for other system errors
 80h	no power management events pending
 81h-85h reserved for other power management event errors
 86h	APM not present
 87h-9Fh reserved for other power management event errors
--------p-155301-----------------------------
INT 15 - Advanced Power Management Specification - CONNECT REAL-MODE INTERFACE
	AX = 5301h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	CF set on error
	    AH = error code (02h,05h,07h,09h) (see #0359)
SeeAlso: AX=5302h,AX=5303h,AX=5304h
--------p-155302-----------------------------
INT 15 R - Advanced Power Management Spec - CONNECT 16-BIT PROTMODE INTERFACE
	AX = 5302h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	    AX = real-mode segment base address of protected-mode 16-bit code
		segment
	    BX = offset of entry point
	    CX = real-mode segment base address of protected-mode 16-bit data
		segment
	    ---APM v1.1---
	    SI = APM BIOS code segment length
	    DI = APM BIOS data segment length
	CF set on error
	    AH = error code (02h,05h,06h,07h,09h) (see #0359)
Notes:	the caller must initialize two consecutive descriptors with the
	  returned segment base addresses; these descriptors must be valid
	  whenever the protected-mode interface is called, and will have
	  their limits arbitrarily set to 64K.
	the protected mode interface is invoked by making a far call with the
	  same register values as for INT 15; it must be invoked while CPL=0,
	  the code segment descriptor must have a DPL of 0, the stack must be
	  in a 16-bit segment and have enough room for BIOS use and possible
	  interrupts, and the current I/O permission bit map must allow access
	  to the I/O ports used for power management.
	functions 00h-03h are not available from protected mode
SeeAlso: AX=5301h,AX=5303h,AX=5304h
--------p-155303-----------------------------
INT 15 - Advanced Power Management Spec - CONNECT 32-BIT PROTMODE INTERFACE
	AX = 5303h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	    AX = real-mode segment base address of protected-mode 32-bit code
		segment
	    EBX = offset of entry point
	    CX = real-mode segment base address of protected-mode 16-bit code
		segment
	    DX = real-mode segment base address of protected-mode 16-bit data
		segment
	    ---APM v1.1---
	    SI = APM BIOS code segment length
	    DI = APM BIOS data segment length
	CF set on error
	    AH = error code (02h,05h,07h,08h,09h) (see #0359)
Notes:	the caller must initialize three consecutive descriptors with the
	  returned segment base addresses for 32-bit code, 16-bit code, and
	  16-bit data, respectively; these descriptors must be valid whenever
	  the protected-mode interface is called, and will have their limits
	  arbitrarily set to 64K.
	the protected mode interface is invoked by making a far call to the
	  32-bit code segment with the same register values as for INT 15; it
	  must be invoked while CPL=0, the code segment descriptor must have a
	  DPL of 0, the stack must be in a 32-bit segment and have enough room
	  for BIOS use and possible interrupts, and the current I/O permission
	  bit map must allow access to the I/O ports used for power management.
	functions 00h-03h are not available from protected mode
SeeAlso: AX=5301h,AX=5302h,AX=5304h
--------p-155304-----------------------------
INT 15 - Advanced Power Management Specification - DISCONNECT INTERFACE
	AX = 5304h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	CF set on error
	    AH = error code (03h,09h) (see #0359)
SeeAlso: AX=5301h,AX=5302h,AX=5303h
--------p-155305-----------------------------
INT 15 - Advanced Power Management Specification - CPU IDLE
	AX = 5305h
Return: CF clear if successful (after system leaves idle state)
	CF set on error
	    AH = error code (03h,0Bh) (see #0359)
Notes:	call when the system is idle and should be suspended until the next
	  system event or interrupt
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	if an interrupt causes the system to resume normal processing, the
	  interrupt may or may not have been handled when the BIOS returns
	  from this call; thus, the caller should allow interrupts on return
	interrupt handlers may not retain control if the BIOS allows
	  interrupts while in idle mode even if they are able to determine
	  that they were called from idle mode
	the caller should issue this call continuously in a loop until it needs
	  to perform some processing of its own
SeeAlso: AX=1000h,AX=5306h,INT 2F/AX=1680h
--------p-155306-----------------------------
INT 15 - Advanced Power Management Specification - CPU BUSY
	AX = 5306h
Return: CF clear if successful
	CF set on error
	    AH = error code (03h,0Bh) (see #0359)
Notes:	called to ensure that the system runs at full speed even on systems
	  where the BIOS is unable to recognize increased activity (especially
	  if interrupts are hooked by other programs and not chained to the
	  BIOS)
	this call may be made even when the system is already running at full
	  speed, but it will create unnecessary overhead
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5305h
--------p-155307-----------------------------
INT 15 - Advanced Power Management Specification - SET POWER STATE
	AX = 5307h
	BX = device ID (see #0360)
	CX = system state ID (see #0361)
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,03h,09h,0Ah,0Bh,60h) (see #0359)
Note:	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=530Ch

(Table 0360)
Values for APM device IDs:
 0000h	system BIOS
 0001h	all devices for which the system BIOS manages power
 01xxh	display (01FFh for all attached display devices)
 02xxh	secondary storage (02FFh for all attached secondary storage devices)
 03xxh	parallel ports (03FFh for all attached parallel ports)
 04xxh	serial ports (04FFh for all attached serial ports)
---APM v1.1---
 05xxh	network adapters (05FFh for all attached network adapters)
 06xxh	PCMCIA sockets (06FFh for all)
 0700h-DFFFh reserved
 Exxxh	OEM-defined power device IDs
 F000h-FFFFh reserved

(Table 0361)
Values for system state ID:
 0000h	ready (not supported for device ID 0001h)
 0001h	stand-by
 0002h	suspend
 0003h	off (not supported for device ID 0001h)
---APM v1.1---
 0004h	last request processing notification (only for device ID 0001h)
 0005h	last request rejected (only for device ID 0001h)
 0006h-001Fh reserved system states
 0020h-003Fh OEM-defined system states
 0040h-007Fh OEM-defined device states
 0080h-FFFFh reserved device states
--------p-155307CX0001-----------------------
INT 15 - Advanced Power Management Specification - SYSTEM STAND-BY
	AX = 5307h
	CX = 0001h
	BX = 0001h (device ID for all power-managed devices)
Return: CF clear
Notes:	puts the entire system into stand-by mode; normally called in response
	  to a System Stand-by Request notification after any necessary
	  processing, but may also be invoked at the caller's discretion
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	the stand-by state is typically exited on an interrupt
SeeAlso: AX=4280h,AX=5307h/CX=0002h/BX=0001h,AX=530Bh
--------p-155307CX0002-----------------------
INT 15 - Advanced Power Management Specification - SUSPEND SYSTEM
	AX = 5307h
	CX = 0002h
	BX = 0001h (device ID for all power-managed devices)
Return: after system is resumed
	CF clear
Notes:	puts the entire system into a low-power suspended state; normally
	  called in response to a Suspend System Request notification after
	  any necessary processing, but may also be invoked at the caller's
	  discretion
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	the caller may need to update its date and time values because the
	  system could have been suspended for a long period of time
SeeAlso: AX=5307h/CX=0001h/BX=0001h,AX=530Bh
--------p-155308-----------------------------
INT 15 - Advanced Power Management Spec - ENABLE/DISABLE POWER MANAGEMENT
	AX = 5308h
	BX = device ID for all devices power-managed by APM
	    0001h (APM v1.1)
	    FFFFh (APM v1.0)
	CX = new state
	    0000h disabled
	    0001h enabled
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,03h,09h,0Ah,0Bh) (see #0359)
Notes:	when power management is disabled, the system BIOS will not
	  automatically power down devices, enter stand-by or suspended mode,
	  or perform any power-saving actions in response to AX=5305h calls
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5309h,AX=530Dh,AX=530Fh
--------p-155309-----------------------------
INT 15 - Advanced Power Management Specification - RESTORE POWER-ON DEFAULTS
	AX = 5309h
	BX = device ID for all devices power-managed by APM
	    0001h (APM v1.1)
	    FFFFh (APM v1.0)
Return: CF clear if successful
	CF set on error
	    AH = error code (09h) (see #0359)
Note:	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5308h
--------p-15530ABX0001-----------------------
INT 15 - Advanced Power Management Specification - GET POWER STATUS
	AX = 530Ah
	BX = 0001h (device ID for all devices power-managed by APM)
Return: CF clear if successful
	    BH = AC line status
		00h off-line
		01h on-line
		02h on backup power (APM v1.1)
		FFh unknown
		other reserved
	    BL = battery status (see #0362)
	    CH = battery flag (APM v1.1) (see #0363)
		 CL = remaining battery life, percentage
		00h-64h (0-100) percentage of full charge
		FFh unknown
	    DX = remaining battery life, time (APM v1.1) (see #0364)
	CF set on error
	    AH = error code (09h) (see #0359)
Note:	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems

(Table 0362)
Values for APM v1.0+ battery status:
 00h	high
 01h	low
 02h	critical
 03h	charging
 FFh	unknown
 other	reserved

Bitfields for APM v1.1 battery flag:
Bit(s)	Description	(Table 0363)
 0	high
 1	low
 2	critical
 3	charging
 4-6	reserved
 7	no system battery
Note:	all bits set (FFh) if unknown

Bitfields for APM v1.1 remaining battery life:
Bit(s)	Description	(Table 0364)
 15	time units: 0=seconds, 1=minutes
 14-0	battery life in minutes or seconds
Note:	all bits set (FFFFh) if unknown
--------p-15530B-----------------------------
INT 15 - Advanced Power Management Specification - GET POWER MANAGEMENT EVENT
	AX = 530Bh
Return: CF clear if successful
	    BX = event code (see #0365)
	CF set on error
	    AH = error code (03h,0Bh,80h) (see #0359)
Notes:	although power management events are often asynchronous, notification
	  will not be made until polled via this call to permit software to
	  only receive event notification when it is prepared to process
	  power management events; since these events are not very time-
	  critical, it should be sufficient to poll once or twice per second
	the critical resume notification is made after the system resumes
	  from an emergency suspension; normally, the system BIOS only notifies
	  its partner that it wishes to suspend and relies on the partner to
	  actually request the suspension, but no notification is made on an
	  emergency suspension
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5307h,AX=5307h/BX=0001h/CX=0001h,AX=5307h/BX=0001h/CX=0002h

(Table 0365)
Values for APM event code:
 0001h	system stand-by request
 0002h	system suspend request
 0003h	normal resume system notification
 0004h	critical resume system notification
 0005h	battery low notification
---APM v1.1---
 0006h	power status change notification
 0007h	update time notification
 0008h	critical system suspend notification
 0009h	user system standby request notification
 000Ah	user system suspend request notification
 000Bh	system standby resume notification
 000Ch-00FFh reserved system events
 01xxh	reserved device events
 02xxh	OEM-defined APM events
 0300h-FFFFh reserved
--------p-15530C-----------------------------
INT 15 - Advanced Power Management v1.1 - GET POWER STATE
	AX = 530Ch
	BX = device ID (see #0360)
Return: CF clear if successful
	    BX = system state ID (see #0361)
	CF set on error
	    AH = error code (01h,09h) (see #0359)
SeeAlso: AX=5307h
--------p-15530D-----------------------------
INT 15 - Advanced Power Management v1.1 - EN/DISABLE DEVICE POWER MANAGEMENT
	AX = 530Dh
	BX = device ID (see #0360)
	CX = function
	    0000h disable power management
	    0001h enable power management
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,03h,09h,0Ah,0Bh) (see #0359)
SeeAlso: AX=5308h,AX=530Fh
--------p-15530E-----------------------------
INT 15 - Advanced Power Management v1.1 - DRIVER VERSION
	AX = 530Eh
	BX = device ID of system BIOS (0000h)
	CH = APM driver major version (BCD)
	CL = APM driver minor version (BCD)
Return: CF clear if successful
	    AH = APM connection major version (BCD)
	    AL = APM connection minor version (BCD)
	CF set on error
	    AH = error code (03h,09h,0Bh) (see #0359)
SeeAlso: AX=5300h
--------p-15530F-----------------------------
INT 15 - Advanced Power Management v1.1 - ENGAGE/DISENGAGE POWER MANAGEMENT
	AX = 530Fh
	BX = device ID (see #0360)
	CX = function
	    0000h disengage power management
	    0001h engage power management
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,09h) (see #0359)
Note:	unlike AX=5308h, this call does not affect the functioning of the APM
	  BIOS
SeeAlso: AX=5308h,AX=530Dh
--------p-155380BH00-------------------------
INT 15 - APM SL Enhanced v1.0 - GET SUSPEND/GLOBAL STANDBY MODE
	AX = 5380h
	BH = 00h
Return: CF clear if successful
	    AL = 82360SL Auto Power Off Timer High Count (APWR_TMRH)
	    BL = sustdbymode (see #0366)
SeeAlso: AX=5380h/BH=01h,AX=5380h/BH=02h,AX=5380h/BH=7Fh

Bitfields for APM SL sustdbymode:
Bit(s)	Description	(Table 0366)
 2	???
 1	Auto Power Off Timer Enable (APWR_TMR_EN)
 0	???
--------p-155380BH01-------------------------
INT 15 - APM SL Enhanced v1.0 - SET SUSPEND/GLOBAL STANDBY MODE
	AX = 5380h
	BH = 01h
	BL = sustdbymode (see #0366)
Return: CF clear if successful
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh
--------p-155380BH02-------------------------
INT 15 - APM SL Enhanced v1.0 - GET GLOBAL STANDBY TIMER
	AX = 5380h
	BH = 02h
Return: CF clear if successful
	SI:DI = timer count in seconds (actually 1.024 seconds)
Desc:	reads the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=03h,AX=5380h/BH=04h,AX=5380h/BH=7Fh
--------p-155380BH03-------------------------
INT 15 - APM SL Enhanced v1.0 - SET GLOBAL STANDBY TIMER
	AX = 5380h
	BH = 03h
	SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc:	sets the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
Note:	the maximum timer count is 268431 seconds
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=7Fh
--------p-155380BH04-------------------------
INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER
	AX = 5380h
	BH = 04h
Return: CF clear if successful
	SI:DI = timer count in seconds (actually 1.024 seconds)
Desc:	reads the value of 82360SL APWR_TMRH & APWR_TMRL registers
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=05h,AX=5380h/BH=06h,AX=5380h/BH=7Fh
--------p-155380BH05-------------------------
INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER
	AX = 5380h
	BH = 05h
	SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc:	sets the value of 82360SL APWR_TMRH & APWR_TMRL registers
Note:	the maximum timer count is 134213 seconds
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=7Fh
--------p-155380BH06-------------------------
INT 15 - APM SL Enhanced v1.0 - GET RESUME CONDITION
	AX = 5380h
	BH = 06h
Return: CF clear if successful
	    BL = resume condition (see #0367)
Desc:	reads the value of 82360SL RESUME_MASK register
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=07h,AX=5380h/BH=08h,AX=5380h/BH=7Fh

Bitfields for APM SL resume condition:
Bit(s)	Description	(Table 0367)
 7-2	reserved (0)
 1	alarm enabled (resume on CMOS alarm)
 0	ring enabled
--------p-155380BH07-------------------------
INT 15 - APM SL Enhanced v1.0 - SET RESUME CONDITION
	AX = 5380h
	BH = 07h
	BL = resume condition (see #0367)
Return: CF clear if successful
Desc:	sets the value of 82360SL RESUME_MASK register
SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=7Fh
--------p-155380BH08-------------------------
INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT TIME
	AX = 5380h
	BH = 08h
Return: CF clear if successful
	    CH = hours
	    CL = minutes
	    SI = seconds
	CF set on error
	    AH = error code (see #0368)
Desc:	gets calendar event time from CMOS ram
SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=09h,AX=5380h/BH=0Ah,AX=5380h/BH=7Fh

(Table 0368)
Values for APM SL error code:
 02h	no alarm set
 03h	no battery
--------p-155380BH09-------------------------
INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT TIME
	AX = 5380h
	BH = 09h
	CH = hours
	CL = minutes
	SI = seconds
Return: CF clear if successful
	CF set on error
	    AH = error code (see #0368)
Desc:	sets calendar event time in CMOS ram, enables Alarm resume
SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=7Fh
--------p-155380BH0A-------------------------
INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT DATE
	AX = 5380h
	BH = 0Ah
Return: CF clear if successful
	    SI = century
	    DI = year
		 CH = month
	    CL = day
	CF set on error
	    AH = error code (see #0368)
Desc:	reads calendar event date from Extended CMOS ram
SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=0Bh,AX=5380h/BH=0Ch,AX=5380h/BH=7Fh
--------p-155380BH0B-------------------------
INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT DATE
	AX = 5380h
	BH = 0Bh
	SI = century
	DI = year
	CH = month
	CL = day
Return: CF clear if successful
	CF set on error
	    AH = error code (see #0368)
Desc:	sets calendar event date in Extended CMOS ram
SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=7Fh
--------p-155380BH0C-------------------------
INT 15 - APM SL Enhanced v1.0 - GET CPU SPEED MODE
	AX = 5380h
	BH = 0Ch
Return: CF clear if successful
	CL = CPU clock divider (1,2,4 or 8)
	BL = autocpumode ???
Desc:	reads bits 4-5 of CPUPWRMODE register
SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=0Dh,AX=5380h/BH=7Fh
--------p-155380BH0D-------------------------
INT 15 - APM SL Enhanced v1.0 - SET CPU SPEED MODE
	AX = 5380h
	BH = 0Dh
	CL = CPU clock divider (1,2,4 or 8)
	BL = autocpumode ???
Return: CF clear if successful
Desc:	writes bits 4-5 of CPUPWRMODE register
SeeAlso: AX=5380h/BH=0Ch,AX=5380h/BH=7Eh,AX=5380h/BH=7Fh
--------p-155380BH7E-------------------------
INT 15 - APM SL Enhanced v1.0 - SL HW PARAMETER
	AX = 5380h
	BH = 7Eh
Return:	AL = ???
	    03h on A-Step 386SL BIOSes
	    12h on later steps
	BX = Control port (00B0h)
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh
--------p-155380BH7F-------------------------
INT 15 - Advanced Power Management v1.1 - OEM APM INSTALLATION CHECK
	AX = 5380h
	BH = 7Fh
Return: CF clear if successful
	    BX = OEM identifier
	    all other registers OEM-defined
	    ---Intel SL Enhanced Option BIOS---
	    BX = 534Ch ('SL')
	    CL = 4Fh ('O')
	    AL = version (10h = 1.0)
	    ---HP APM BIOS---
	    BX = 4850h ('HP')
	    CX = version (0001h)
	CF set on error
	    AH = error code (03h) (see #0359)
SeeAlso: AX=5380h/BH=00h
--------p-155380-----------------------------
INT 15 - Advanced Power Management v1.1 - OEM APM FUNCTIONS
	AX = 5380h
	BH <> 7Fh
	all other registers OEM-defined
Return: OEM-defined
SeeAlso: AX=5380h/BH=7Fh
--------T-155400-----------------------------
INT 15 C - Omniview Multitasker - INSTALLATION NOTIFICATION
	AX = 5400h
	ES:BX -> device information tables
	DI:DX -> dispatcher entry point
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5407h,INT 2F/AX=DE00h
--------T-155401-----------------------------
INT 15 C - Omniview Multitasker - PROCESS CREATION
	AX = 5401h
	ES:BX = process handle
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5402h,INT 2F/AX=DE04h
--------T-155402-----------------------------
INT 15 C - Omniview Multitasker - PROCESS DESTRUCTION
	AX = 5402h
	ES:DX = process handle
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5401h,INT 2F/AX=DE05h
--------T-155403-----------------------------
INT 15 C - Omniview Multitasker - SAVE
	AX = 5403h
	ES:DX = process swapping out
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5404h,INT 2F/AX=DE08h
--------T-155404-----------------------------
INT 15 C - Omniview Multitasker - RESTORE
	AX = 5404h
	ES:DX = process swapping in
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5403h,INT 2F/AX=DE09h
--------T-155405-----------------------------
INT 15 C - Omniview Multitasker - SWITCHING TO BACKGROUND
	AX = 5405h
	ES:DX = process swapping in
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5406h
--------T-155406-----------------------------
INT 15 C - Omniview Multitasker - SWITCHING TO FOREGROUND
	AX = 5406h
	ES:DX = process swapping in
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5405h
--------T-155407-----------------------------
INT 15 C - Omniview Multitasker - EXIT NOTIFICATION
	AX = 5407h
Note:	called by OmniView to notify programs loaded before OmniView of state
	  changes inside OmniView
SeeAlso: AX=5400h,INT 2F/AX=DE03h
--------!---Section--------------------------
Interrupt List, part 3 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------b-1560------------------------------------
INT 15 - HUNTER 16 - SET SYSTEM CLOCK SPEED
	AH = 60h
	AL = new speed
	    00h normal (8 MHz)
	    01h Slow Mode 1 (4 MHz)
	    02h Slow Mode 2 (2 MHz)
Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AX=6301h
--------p-156000-----------------------------
INT 15 U HP 100LX/200LX - GET MAIN BATTERY LEVEL
	AX = 6000h
Return: AX = battery level
Note:	multiply the returned value with 1Bh and add 622h to get millivolts
SeeAlso: AX=6001h,AX=6002h,AX=6003h,AX=6004h
--------p-156001-----------------------------
INT 15 U HP 100LX/200LX - GET BACKUP BATTERY LEVEL
	AX = 6001h
Return: AX = battery level
Note:	multiply the returned value with 1Bh and add 622h to get millivolts
SeeAlso: AX=6000h,AX=6002h
--------p-156002-----------------------------
INT 15 U HP 100LX/200LX - GET POWER INFO
	AX = 6002h
Return: AL = power settings (see #0369)
SeeAlso: AX=6000h,AX=6003h,AX=6004h

Bitfields for power settings:
Bit(s)	Description	(Table 0369)
 0-1	unused ???
 2	card battery status low (OK if bit clear)
 3	battery charging off (disabled if bits 3-5 clear)
 4	battery charging slow
 5	battery charging fast
 6	power adaptor active
 7	battery type NiCad (alkaline if bit clear)
--------p-156003-----------------------------
INT 15 U HP 100LX/200LX - SET MAIN BATTERY TYPE
	AX = 6003h
	BL = battery type
	    00h alkaline
	    01h NiCad
SeeAlso: AX=6000h,AX=6004h
--------p-156004-----------------------------
INT 15 U HP 100LX/200LX - SET BATTERY CHARGING MODE
	AX = 6004h
	BL = charging
	    00h disabled
	    01h enabled
SeeAlso: AX=6000h,AX=6003h
--------b-1561------------------------------------
INT 15 - HUNTER 16 - GET POWER LEVEL
	AH = 61h
Return: AH = percentage of full power left (0..100)
Desc:	determine how much battery power is left
SeeAlso: AH=62h,AH=66h,AH=73h"HUNTER"
--------b-1561-------------------------------
INT 15 U HP 100LX/200LX - SET ANNOUNCIATORS POSITION
	AH = 61h
	AL = position (20h = left, 60h = right)
Note:	The announciators are the indicator symbols for the Shift and Fn keys
	  in the bottom line
SeeAlso: INT 16/AH=02h
--------b-1562------------------------------------
INT 15 - HUNTER 16 - SET LOW POWER THRESHOLD
	AH = 62h
	AL = level (00h 5%, 01h 10%, ... 12h 95%)
	BX = interval between power low warnings in seconds (1..600)
Return: AH = Status
Desc:	set the level (relative to full power) when power-low warnings begin
	  and the interval between the warnings
SeeAlso: AH=61h,AH=65h,AH=66h
--------b-156300----------------------------------
INT 15 - HUNTER 16 - GET IDLE TIMEOUT
	AX = 6300h
Return: AH = status
	BX = timeout in seconds (0-3600)
Desc:	get the idle timeout value, the interval without keyboard or
	   communications activity before the system shuts down
SeeAlso: AX=6301h
--------b-156301----------------------------------
INT 15 - HUNTER 16 - SET IDLE TIMEOUT
	AX = 6301h
	BX = timeout in seconds (0-3600)
Desc:	sets the idle timeout value, the interval without keyboard or
	  communications activity before the system shuts down
SeeAlso: AX=6300h
--------b-1564------------------------------------
INT 15 - HUNTER 16 - CONTROL RESUME MODE
	AH = 64h
	AL = new state
	    00h disable Resume mode
	    01h enable Resume mode
Return: AH = status
Desc:	turn Resume mode on or off. In Resume mode the system starts in
	  the application that was running when it shut down as if nothing 
	  had happened.
SeeAlso: AH=67h,AH=68h,AH=69h
--------b-1565------------------------------------
INT 15 - HUNTER 16 - AUTHORISE CHARGING
	AH = 65h
	AL = charging level
	    01h charging not allowed
	    02h charging allowed until power down
	    03h charging allowed until batteries changed or fail.
		Ask user if charging is still allowed on next poweron
	    04h charging allowed indefinitely
	BX = 0203h
	CX = 0405h
	DX = 0607h
Return: AH = status
SeeAlso: AH=66h,AH=68h
--------b-1566------------------------------------
INT 15 - HUNTER 16 - SET BATTERY LEVEL
	AH = 66h
	AL = level in percent of maximum (0..100)
Return: AH = status
SeeAlso: AH=61h,AH=65h
--------b-1567------------------------------------
INT 15 - HUNTER 16 - CONTROL STOP MODE
	AH = 67h
	AL = mode when waiting for input
	    00h use STOP mode (allows communication)
		 01h use HALT mode (disallows communication)
Return: AH = status
Desc:	select the power save mode to use when waiting for input
SeeAlso: AH=69h
--------b-1568------------------------------------
INT 15 - HUNTER 16 - REQUEST POWER DOWN
	AH = 68h
Desc:	turns off the Hunter 16 if power down is allowed (see AH=69h)
SeeAlso: AH=69h
--------b-1569------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER DOWN AVAILABILITY
	AH = 69h
	AL = mode
	    00h inhibit power down
	    01h allow power down
Return: AH = status
SeeAlso: AH=67h,AH=68h,AH=6Ah
--------b-156A------------------------------------
INT 15 - HUNTER 16 - CONTROL SLOW MODE
	AH = 6Ah
	AL = mode
	    00h inhibit Slow mode
	    01h allow Slow mode
Return: AH = status
SeeAlso: AH=69h
--------b-156B------------------------------------
INT 15 - HUNTER 16 - GET ROM BIOS VERSION
	AH = 6Bh
Return: BH = version number (ASCII)
	BL = release number (ASCII)
	CH = minor release number (ASCII)
	CL = minor release number (ASCII)
SeeAlso: AH=6Ch
--------b-156C------------------------------------
INT 15 - HUNTER 16 - GET SERIAL NUMBER
	AH = 6Ch
Return: BL:CX = BCD serial number
Note:	when shipped, all Hunter 16s have the same Serial Number, but a
	  different number can be stored (see AH=72h)
SeeAlso: AH=6Bh,AH=72h
--------b-156D------------------------------------
INT 15 - HUNTER 16 - GET EVENT DETAIL
	AH = 6Dh
Return: AH = 00h if successful
	CX:BX = event flags bit 0..31 (see #0370)
Note:	this function allows testing for events
SeeAlso: AH=6Eh,AH=6Fh

Bitfields for HUNTER 16 events:
Bit(s)	Description	(Table 0370)
 6	RI received
 5	RTC Alarm
 4	data received on COM2
 3	data received on COM1
 2	error on COM2
 1	error on COM1
 0	PWR button pressed
--------b-156E------------------------------------
INT 15 - HUNTER 16 - ENABLE/TRAP EVENT
	AH = 6Eh
	AL = Software Interrupt
	      00h  do not trap event
	      else trap as software interrupt number AL
	BH = event number (see AH=6Dh)
	BL = enable mask
	    00h disable event
	    01h enable event
Return: AH = 00h if successful
SeeAlso: AH=6Dh,AH=6Fh
--------b-156F------------------------------------
INT 15 - HUNTER 16 - ACKNOWLEDGE EVENT
	AH = 6Fh
	AL = event number (see AH=6Dh)
Return: AH = 00h if successful
Desc:	Acknowledges the event, so the next similar event can be detected 
SeeAlso: AH=6Dh"HUNTER",AH=6Eh
----------157000-----------------------------
INT 15 - Tandy 1000SL/TL - READ FROM EEPROM
	AX = 7000h
	BL = number of word to read (00h-3Fh)
Return: CF clear if function supported
	    DX = contents of EEPROM word
Note:	newer Tandy 1000-series machines use EEPROM instead of CMOS RAM in
	  the clock chip to store system configuration information
SeeAlso: AX=7001h
----------157001-----------------------------
INT 15 - Tandy 1000SL/TL - WRITE TO EEPROM
	AX = 7001h
	BL = number of word to read (00h-3Fh)
	DX = new value for EEPROM word
Return: CF clear if function supported
Note:	the EEPROMs are normally written only by the system setup program;
	  changing the values can badly mess up a Tandy
SeeAlso: AX=7000h
--------b-1570------------------------------------
INT 15 - HUNTER 16 - CONTROL SOUND
	AH = 70h
	AL = new state
	    00h disable sound
	    else enable sound
Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
--------b-1571------------------------------------
INT 15 - HUNTER 16 - SELECT POWER UP KEYS
	AH = 71h
	BL = column
	BH = row
	AL = column switch (00h disable, 01h enable)
	CL = row switch (00h disable, 01h enable)
Return: AH = status
SeeAlso: AH=7Bh,AH=88h
--------b-157200----------------------------------
INT 15 - HUNTER 16 - RESET SERIAL NUMBER
	AX = 7200h
Return: AH = 00h if successful
Desc:	reset the serial number to the default serial number present when the
	  Hunter 16 was shipped
SeeAlso: AH=6Ch,AH=72h
--------b-1572------------------------------------
INT 15 - HUNTER 16 - REDIRECT SERIAL NUMBER
	AH = 72h
	AL nonzero
	DS:BX -> new serial number (6 ASCII digits)
Return: AH = 00h if successful
Desc:	install a new serial number
SeeAlso: AH=6Ch,AX=7200h
--------b-1573------------------------------------
INT 15 - HUNTER 16 - GET ORACLE GT POWER LEVEL
	AH = 73h
	AL = drive (0: A:, 1: B:)
Return: AH = status
	    00h successful
	    FFh Oracle GT drive not connected
	AL = power level in percent of maximum (0..100)
Desc:	get the power remaining in the Oracle GT batteries
SeeAlso: AH=61h
--------b-1574------------------------------------
INT 15 - HUNTER 16 - SET BACKLIGHT POWER UP STATE
	AH = 74h
	AL = new level
	    01h off
	    02h unchanged
	    03h change level
		BL = desired level (00h-7Fh)
Return: AH = status
Desc:	select the backlight level to use when the Hunter is next turned on
SeeAlso: AH=64h,AH=75h,INT 10/AH=64h,INT 10/AH=78h
--------b-1575------------------------------------
INT 15 - HUNTER 16 - SET CONTRAST POWER UP STATE
	AH = 75h
	AL = new level
	    01h off
	    02h unchanged
	    03h change level
		BL = desired level (00h-7Fh)
Return: AH = status
Desc:	select the LCD contrast level to use when the Hunter is next turned on
SeeAlso: AH=63h,AH=74h
--------b-1576------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER SAVE
	AH = 76h
	BX = power save control (see #0371)
SeeAlso: AH=74h

Bitfields for HUNTER 16 power save control:
Bit(s)	Description	(Table 0371)
 0	power save enabled
 1	inhibit power save when waiting for COM1 data
 2	inhibit power save when waiting for COM2 data
 3	inhibit power save when waiting for data from barcode wand
 4	inhibit power up on timer tick
--------b-1579------------------------------------
INT 15 - HUNTER 16 - REDIRECT LPT1
	AH = 79h
	AL = port to which to redirect (00h COM1, 01h COM2)
--------b-157A------------------------------------
INT 15 - HUNTER 16 - INVOKE HOT KEY
	AH = 7Ah
Desc:	this function has the same effect as pressing the HOT key
SeeAlso: AH=7Bh
--------b-157B------------------------------------
INT 15 - HUNTER 16 - CONTROL HOT KEY
	AH = 7Bh
	AL = 00h prevent HOT key
		 else allow HOT key
Desc:	Allow or prevent the HOT key function which is used to examine and
	  change the Hunter setup
SeeAlso: AH=71h,AH=7Ah,AH=7Ch
--------b-157C------------------------------------
INT 15 - HUNTER 16 - CONTROL HOT KEY POWER OPTION
	AH = 7Ch
	AL = 00h prevent HOT key power option
	    else allow HOT key power option
Desc:	allow or prevent changing the power options
SeeAlso: AH=7Bh,AH=7Dh
--------b-157D------------------------------------
INT 15 - HUNTER 16 - OVERRIDE LOW POWER TURN OFF
	AH = 7Dh
	AL = 00h turn off after 10 warnings
	    else never turn off
Desc:	specify whether the Hunter 16 turns off after 10 low power warnings
SeeAlso: AH=7Ch
--------b-157E------------------------------------
INT 15 - HUNTER 16 - CONTROL BATTERY CHANGE FACILITIES (APM)
	AH = 7Eh
	AL = 00h do not prompt
	    else prompt
Desc:	select whether the user is prompted for the battery state if the
	  battery cap has been off when the system is turned on
SeeAlso: AH=7Fh
--------b-157F------------------------------------
INT 15 - HUNTER 16 - SET BATTERY TYPE (APM)
	AH = 7Fh
	AL = battery type
	    00h	 non-rechargeable
	    else rechargeable
SeeAlso: AH=7Eh
--------B-1580-------------------------------
INT 15 C - OS HOOK - DEVICE OPEN (AT,XT286,PS)
	AH = 80h
	BX = device ID
	CX = process ID
	CF clear
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status (see #0372)
Note:	this function should be hooked by a multitasker which wishes to keep
	  track of device ownership; the default BIOS handler merely returns
	  successfully
SeeAlso: AH=81h,AH=82h

(Table 0372)
Values for status:
 80h	invalid command (PC,PCjr)
 86h	function not supported (XT)
--------b-1580------------------------------------
INT 15 - HUNTER 16 - GET/SET BATTERY CAPACITY (APM)
	AH = 80h
	AL = function
	    00h get
		Return: AL = capacity (500mA + AL * 50mA, max 40 = 2500mA)
	    else set
		BL = battery capacity (same as AL above)
SeeAlso: AH=61h"HUNTER",AH=81h"HUNTER"
--------B-1581-------------------------------
INT 15 C - OS HOOK - DEVICE CLOSE
	AH = 81h
	BX = device ID
	CX = process ID
	CF clear
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status (see #0372)
Note:	this function should be hooked by a multitasker which wishes to keep
	  track of device ownership; the default BIOS handler merely returns
	  successfully
SeeAlso: AH=80h,AH=82h
--------b-1581------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER OUTPUT
	AH = 81h
	AL = new state of power output (00h off, nonzero on)
Desc:	turn the +5V low power output on or off
SeeAlso: AH=80h"HUNTER"
--------B-1582-------------------------------
INT 15 C - OS HOOK - PROGRAM TERMINATION
	AH = 82h
	BX = process ID
	CF clear
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status (see #0372)
Notes:	closes all devices opened by the given process ID with function 80h
	this function should be hooked by a multitasker which wishes to keep
	  track of device ownership; the default BIOS handler merely returns
	  successfully
SeeAlso: AH=80h,AH=81h
--------b-1582------------------------------------
INT 15 - HUNTER 16 - SOUND OUTPUT
	AH = 82h
	DX = length (duration in seconds = DX * 666670 / frequency)
	BX = pitch (see #0373)
Desc:	Sound the tone specified in BX for the duration in DX
SeeAlso: AX=1019h

(Table 0373)
Values for HUNTER 16 sound pitch:
BX(dec)	 Note	Frequency	BX(dec)	 Note	Frequency
  425	G	1568.000	 1515	A	 440.000
  451	F#	1479.503	 1605	G#	 415.307
  477	F	1396.900	 1701	G	 392.000
  506	E	1318.500	 1802	F#	 369.998
  536	D#	1244.523	 1909	F	 349.230
  568	D	1174.700	 2022	E	 329.630
  601	C#	1108.749	 2143	D#	 311.127
  637	C	1046.500	 2270	D	 293.660
  675	B	 958.770	 2405	C#	 277.183
  715	A#	 932.329	 2548	MID C	 261.630
  758	A	 880.000	 2700	B	 246.940
  803	G#	 830.609	 2860	A#	 233.081
  850	G	 783.990	 3030	A	 220.000
  901	F#	 739.990	 3210	G#	 207.654
  954	F	 698.460	 3401	G	 196.000
 1011	E	 659.260	 3604	F#	 184.996
 1071	D#	 622.257	 3818	F	 174.610
 1135	D	 587.330	 4045	E	 164.810
 1203	C#	 554.365	 4286	D#	 155.560
 1274	C	 523.250	 4540	D	 146.830
 1350	B	 493.880	 4668	C#	 142.827
 1430	A#	 466.162	 4803	C	 138.810
--------B-1583-------------------------------
INT 15 - BIOS - SET EVENT WAIT INTERVAL (AT,PS50+)
	AH = 83h
	AL = subfunction
	    00h set interval
		CX:DX = microseconds to delay
		ES:BX -> byte whose high bit is to be set at end of interval
	    01h cancel wait interval
Return: CF set on error or function already busy
	    AH = status
		80h invalid command (PC,PCjr)
		86h function not supported (XT and later)
	CF clear if successful
Notes:	the resolution of the wait period is 977 microseconds on most systems
	  because most BIOSes use the 1/1024 second fast interrupt from the AT
	  real-time clock chip which is available on INT 70
	IBM AT 1/10/84 BIOS ignores AL and always performs subfunction 00h
SeeAlso: AH=41h,AH=86h,INT 70
--------b-1583------------------------------------
INT 15 - HUNTER 16 - CONTROL SCREEN SYNCHRONISATION
	AH = 83h
	AL = state of LCD window (00h disabled, nonzero enabled)
Desc:	Enable/disable the facility where the displayed window tracks the
	  cursor output to keep the focus visible
--------B-1584-------------------------------
INT 15 - BIOS - JOYSTICK SUPPORT (XT after 11/8/82,AT,XT286,PS)
	AH = 84h
	DX = subfunction
	    0000h read joystick switches
		Return: AL bits 7-4 = switch settings
	    0001h read positions of joysticks
		Return: AX = X position of joystick A
			BX = Y position of joystick A
			CX = X position of joystick B
			DX = Y position of joystick B
Return: CF set on error
	    AH = status (see #0372)
	CF clear if successful
Notes:	if no game port is installed, subfunction 0000h returns AL=00h (all
	  switches open) and subfunction 0001h returns AX=BX=CX=DX=0000h
	a 250kOhm joystick typically returns 0000h-01A0h
SeeAlso: AH=84h"V20-XT-BIOS"
--------U-1584-------------------------------
INT 15 - V20-XT-BIOS - JOYSTICK SUPPORT
	AH = 84h
	DX = subfunction
	    0000h read joystick switches
		Return: AL bits 7-4 = switch settings
	    other: read positions of joysticks as indicated by bits 0-3
		Return: AX = X position of joystick A (if DX bit 0 set)
			BX = Y position of joystick A (if DX bit 1 set)
			CX = X position of joystick B (if DX bit 2 set)
			DX = Y position of joystick B (if DX bit 3 set)
Return: CF set on error
	    AH = status (see #0372)
	CF clear if successful
Program: V20-XT-BIOS is a BIOS extension by Peter Koehlmann / c't magazine
SeeAlso: AH=84h"PS",INT 10/AH=0Eh/CX=ABCDh
--------b-158400----------------------------------
INT 15 - HUNTER 16 - GET DISKETTE PORT
	AX = 8400h
	BH = Drive (0: A:, 1: B:)
Return: AL = Port (0: COM1, >0: COM2)
Desc:	return the COM port used for the floppy drive
SeeAlso: AX=8401h
--------b-158401----------------------------------
INT 15 - HUNTER 16 - SET DISKETTE PORT
	AX = 8401h
	BH = Drive (0: A:, 1: B:)
	BL = Port (0: COM1, >0: COM2)
Desc:	set the COM port used for the floppy drive
SeeAlso: AX=8400h
--------B-1585-------------------------------
INT 15 C - OS HOOK - SysReq KEY ACTIVITY (AT,PS)
	AH = 85h
	AL = SysReq key action (00h pressed, 01h released)
	CF clear
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status (see #0372)
Notes:	called by keyboard decode routine
	the default handler simply returns successfully; programs which wish
	  to monitor the SysReq key must hook this call
	the SysReq key is often labeled SysRq
SeeAlso: INT 09
--------b-158500----------------------------------
INT 15 - HUNTER 16 - RESTORE POWER MENU (APM)
	AX = 8500h
Desc:	restore the standard power menu
SeeAlso: AX=8501h"HUNTER"
--------b-158501----------------------------------
INT 15 - HUNTER 16 - SET POWER MENU (APM)
	AX = 8501h
	BL = user software interrupt number
Desc:	install an alternate power menu routine
SeeAlso: AX=8500h"HUNTER"
--------B-1586-------------------------------
INT 15 - BIOS - WAIT (AT,PS)
	AH = 86h
	CX:DX = interval in microseconds
Return: CF clear if successful (wait interval elapsed)
	CF set on error or AH=83h wait already in progress
	    AH = status (see #0372)
Note:	the resolution of the wait period is 977 microseconds on most systems
	  because most BIOSes use the 1/1024 second fast interrupt from the AT
	  real-time clock chip which is available on INT 70
SeeAlso: AH=41h,AH=83h,INT 1A/AX=FF01h,INT 70
--------b-1586------------------------------------
INT 15 - HUNTER 16 - GET/SET SCREEN ATTRIBUTE TABLE
	AH = 86h
	AL = function (00h get, nonzero set)
	BX = 1234h
	DS:SI -> 256-byte Attribute buffer
Note:	In text modes each character has its attribute byte XOR'd with the
	  corresponding byte in the attribute table.  If the attribute is 15,
	  15 is XOR'd with Table[15]
--------B-1587-------------------------------
INT 15 - SYSTEM - COPY EXTENDED MEMORY
	AH = 87h
	CX = number of words to copy (max 8000h)
	ES:SI -> global descriptor table (see #0375)
Return: CF set on error
	CF clear if successful
	AH = status (see #0374)
Notes:	copy is done in protected mode with interrupts disabled by the default
	  BIOS handler; many 386 memory managers perform the copy with
	  interrupts enabled
	this function is incompatible with the OS/2 compatibility box
SeeAlso: AH=88h,AH=89h,INT 1F/AH=90h

(Table 0374)
Values for extended-memory copy status:
 00h	source copied into destination
 01h	parity error
 02h	interrupt error
 03h	address line 20 gating failed
 80h	invalid command (PC,PCjr)
 86h	unsupported function (XT,PS30)

Format of global descriptor table:
Offset	Size	Description	(Table 0375)
 00h 16 BYTEs	zeros (used by BIOS)
 10h	WORD	source segment length in bytes (2*CX-1 or greater)
 12h  3 BYTEs	24-bit linear source address, low byte first
 15h	BYTE	source segment access rights (93h)
 16h	WORD	zero
 18h	WORD	destination segment length in bytes (2*CX-1 or greater)
 1Ah  3 BYTEs	24-bit linear destination address, low byte first
 1Dh	BYTE	destination segment access rights (93h)
 1Eh 18 BYTEs	zeros (used by BIOS)
--------b-1587------------------------------------
INT 15 - HUNTER 16 - SET INT 72h VECTOR
	AH = 87h
	DS:DX = new service routine
Desc:	set the INT 72h vector which is called in 2 cases:
	  - when the machine is about to turn off or reboot, INT 72h is called
	    with AH=0
	  - when the machine is powering up INT 72h is called with AH=01h
Note:	the actual INT 72h vector must also be changed with INT 21/AH=25h
--------B-1588-------------------------------
INT 15 - SYSTEM - GET EXTENDED MEMORY SIZE (286+)
	AH = 88h
Return: CF clear if successful
	    AX = number of contiguous KB starting at absolute address 100000h
	CF set on error
	    AH = status
		80h invalid command (PC,PCjr)
		86h unsupported function (XT,PS30)
Notes:	TSRs which wish to allocate extended memory to themselves often hook
	  this call, and return a reduced memory size.	They are then free to
	  use the memory between the new and old sizes at will.
	the standard BIOS only returns memory between 1MB and 16MB; use AH=C7h
	  for memory beyond 16MB
	not all BIOSes correctly return the carry flag, making this call
	  unreliable unless one first checks whether it is supported through
	  a mechanism other than calling the function and testing CF
SeeAlso: AH=87h,AH=C7h
--------b-1588------------------------------------
INT 15 - HUNTER 16 - GET POWER UP KEYS
	AH = 88h
Return: AH = 00h
	BX = column
	CL = row
SeeAlso: AH=71h
--------B-1589-------------------------------
INT 15 - SYSTEM - SWITCH TO PROTECTED MODE
	AH = 89h
	BL = interrupt number of IRQ0 (IRQ1-7 use next 7 interrupts)
	BH = interrupt number of IRQ8 (IRQ9-F use next 7 interrupts)
	ES:SI -> GDT for protected mode (see #0376)
Return: CF set on error
	   AH = FFh  error enabling address line 20
	CF clear if successful
		AH = 00h
	   in protected mode at specified address
Notes:	BL and BH must be multiples of 8
	the protected-mode CS must reference the same memory as the CS this
	  function is called from because execution continues with the address
	  following the interrupt call
SeeAlso: AH=87h,AH=88h,INT 67/AX=DE0Ch

Format of BIOS switch-to-protected-mode Global Descriptor Table:
Offset	Size	Description	(Table 0376)
 00h  8 BYTEs	null descriptor (initialize to zeros)
 08h  8 BYTEs	GDT descriptor (see #0377)
 10h  8 BYTEs	IDT descriptor
 18h  8 BYTEs	DS descriptor
 20h  8 BYTEs	ES
 28h  8 BYTEs	SS
 30h  8 BYTEs	CS
 38h  8 BYTEs	uninitialized, used to build descriptor for BIOS CS

Format of segment descriptor table entry:
Offset	Size	Description	(Table 0377)
 00h	WORD	segment limit, low word
 02h  3 BYTEs	segment base address, low 24 bits
 05h	BYTE	access mode (see #0378)
 06h	BYTE	386+ extended access mode (see #0379)
 07h	BYTE	386+ segment base address, high 8 bits
SeeAlso: #0376,INT 2C/AX=0002h,INT 31/AX=0009h

Bitfields for segment descriptor table access mode field:
Bit(s)	Description	(Table 0378)
 3-0	segment type
 4	descriptor type (1 = application, 0 = system)
 6-5	descriptor privilege level
 7	segment is present in RAM
SeeAlso: #0377,#0379

Bitfields for 386+ segment descriptor table extended access mode field:
Bit(s)	Description	(Table 0379)
 3-0	high 4 bits of segment limit
 4	available
 5	reserved (0)
 6	default operation size (1 = 32 bits, 0 = 16 bits)
 7	granularity (1 = 4K, 0 = byte)
SeeAlso: #0377,#0378,#1346
--------b-158900----------------------------------
INT 15 - HUNTER 16 - GET POWER MODE
	AX = 8900h
Return: AH = 00h
	BL = current power mode
	    00h Standard Power Mode (SPM)
	    01h Advanced Power Mode (APM)
SeeAlso: AX=8901h
--------b-158901----------------------------------
INT 15 - HUNTER 16 - SET POWER MODE
	AX = 8901h
	BL = new mode
	    00h Standard Power Mode (SPM)
	    01h Advanced Power Mode (APM)
Return: AH = 00h
SeeAlso: AX=8900h
--------b-158A------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER INPUT (SPM)
	AH = 8Ah
	AL = new state of Power Input (00h disabled, nonzero enabled)
	SI = 1234h
	DI = 5678h
Return: AH = status
	    00h success
	    FFh failure
Desc:	Enable or disable Power Input. When Power Input is disabled the AC
	  adaptor will neither charge the batteries nor supply power to the
	  Hunter 16. Disable Power Input if using Alkaline batteries.
--------b-158B------------------------------------
INT 15 - HUNTER 16 - GET/SET CHARGER TEMPERATURE OVERRIDE
	AH = 8Bh
	AL = function
	    00h get
		Return:	BH = Maximum charging temperature
				Temp = -20 + (n * 0.63) degrees Centigrade
			BL = Minimum charging temperature
	    else set
		BH = maximum charging temperature (as above)
		BL = minimum charging temperature (as above)
Return: AH = status
	    00h success
	    FFh failure 
Desc:	get/set the temperature interval within which the charger should 
	  operate
--------b-158C------------------------------------
INT 15 - HUNTER 16 - GET/SET POWER SAVE ENTRY FLAG
	AH = 8Ch
	AL = function
		 00h get
		Return: BX = which operations disable power save (see #0380)
	    else set
		BX = which operations should disable power save (see #0380)
SeeAlso: AH=8Dh

Bitfields for HUNTER 16 operations disabling power save:
Bit(s)	Description	(Table 0380)
 0	INT 10h prevents power save
 1	INT 13h prevents power save
 2	INT 14h prevents power save
 3	INT 15h prevents power save
 4	INT 1Ah prevents power save
 5	INT 21h prevents power save
 6	direct write to video RAM prevents power save
 7	access to 8250 UART prevents power save
 8	access to 8253 (Sound) prevents power save
--------b-158D------------------------------------
INT 15 - HUNTER 16 - GET/SET BOOST CHARGE (SPM)
	AH = 8Dh
	AL = function
	    00h get
		Return: AL = Fast Charge state (00h prevented, else allowed)
		 nonzero set
		BH = Fast Charge state (00h prevent, nonzero allow)
Return: AH = status
	    00h success
	    FFh failure
Desc:	control whether Fast Charging (200ma rather than 70ma) is allowed
SeeAlso: AH=8Ch
--------B-1590-------------------------------
INT 15 - OS HOOK - DEVICE BUSY (AT,PS)
	AH = 90h
	AL = device type (see #0381)
	ES:BX -> request block for type codes 80h through BFh
	CF clear
Return: CF set if wait time satisfied
	CF clear if driver must perform wait
	    AH = 00h
Notes:	type codes are allocated as follows:
	  00-7F non-reentrant devices; OS must arbitrate access
	  80-BF reentrant devices; ES:BX points to a unique control block
	  C0-FF wait-only calls, no complementary INT 15/AH=91h call
	floppy and hard disk BIOS code uses this call to implement a timeout;
	  for device types 00h and 01h, a return of CF set means that the
	  timeout expired before the disk responded.
	this function should be hooked by a multitasker to allow other tasks
	  to execute while the BIOS is waiting for I/O completion; the default
	  handler merely returns with AH=00h and CF clear
SeeAlso: AH=91h,INT 13/AH=00h,INT 17/AH=00h,INT 1A/AH=83h

(Table 0381)
Values for device type:
 00h	disk
 01h	diskette
 02h	keyboard
 03h	PS/2 pointing device
 21h	waiting for keyboard input (Phoenix BIOS)
 80h	network
 FBh	digital sound (Tandy)
 FCh	disk reset (PS)
 FDh	diskette motor start
 FEh	printer
--------B-1591-------------------------------
INT 15 - OS HOOK - DEVICE POST (AT,PS)
	AH = 91h
	AL = device type (see #0381)
	ES:BX -> request block for type codes 80h through BFh
	CF clear
Return: AH = 00h
Note:	this function should be hooked by a multitasker to allow other tasks
	  to execute while the BIOS is waiting for I/O completion; the default
	  handler merely returns with AH=00h and CF clear
SeeAlso: AH=90h
----------15A100-----------------------------
INT 15 U - AMI PCI BIOS - SET ??? FLAG
	AX = A100h
Return: AX = 0000h
	CF clear
Desc:	sets bit 7 of CMOS RAM location 37h and updates the CMOS checksum in
	  locations 3Eh and 3Fh
Note:	in the examined version of the BIOS, nonzero values in AL cause it to
	  drop through to checking the next possible value of AH, i.e. only
	  subfunction 00h is supported
--------n-15BA10-----------------------------
INT 15 - HP OmniShare - Pen Driver - REPORT PEN CONTROL AREA EVENT
	AX = BA10h
	BL = event
	   00h the pen left control areas
	   01h the pen entered the Brightness- area
	   02h the pen entered the Brightness+ area
	   03h the pen entered the Contrast- area
		04h the pen entered the Contrast+ area
Return:	CF clear if successfully processed
	CF set on error (function not supported, ie. not an OmniShare BIOS)
Note:	The pen driver is responsible for detecting when the pen enters and
	  leaves control areas of the OmniShare tablet, and notifying the BIOS.
	The BIOS manages the events, including the autorepetition, and sets
	  the status LEDs.
SeeAlso: AX=BA20h,AX=BA13h
--------n-15BA11-----------------------------
INT 15 - HP OmniShare - Pen Driver - SET THE COMMUNICATION LED STATE
	AX = BA11h
	BL = new LED state (00h steady, 01h flashing)
Return:	CF clear if successful
	CF set on error
Note:	this function is for use by communication software to give visual
	  feedback of active communications even if the display is in standby
	  mode.
SeeAlso: AX=BA10h,AX=BA24h
--------n-15BA12-----------------------------
INT 15 - HP OmniShare - Pen Driver - STORE PEN BATTERY CHARGE
	AX = BA12h
	BL = new battery state (00h good, 01h low charge)
Return: CF set on error
	CF clear if successfully stored in CMOS
Note:	The last report will be displayed by the Power-On Self Test the next
	  time the OmniShare boots.  This allows something meaningful to be
	  reported even if the pen is not detected during the POST.
SeeAlso: AX=BA13h
--------n-15BA13-----------------------------
INT 15 - HP OmniShare - Pen Driver - GET PEN BATTERY CHARGE
	AX = BA13h
Return: CF clear if successful
	    BL = pen battery state (00h good, 01h low charge)
	CF set on error
Note:	returns the last value set by AX=BA12h.
SeeAlso: AX=BA12h
--------p-15BA20-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - INSTALLATION CHECK
	AX = BA20h
Return: CF clear if successful (installed)
	CF set on error (not installed)
Notes:	The display controller can enter a standby mode after a given timeout,
	  to conserve power or (for the OmniShare) to increase the life of
	  the backlight.
	A side effect of standby mode is that the communications LED turns on
	  automatically when the display is in standby mode.  This is done in
	  hardware, and is intended to show that the unit is still on.
SeeAlso: AX=BA10h,AX=BA20h,AX=BA22h,AX=BA24h,AX=BA26h
--------p-15BA21-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - SET STANDBY DURATION
	AX = BA21h
	BL = new timeout before standby mode in minutes (01h-0Fh)
	    00h to disable automatic switch to standby mode
Return:	CF clear if successful
	CF set on error (function not supported)
Note:	The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
	  instead of (N*60) seconds as documented.
SeeAlso: AX=BA20h,AX=BA22h
--------p-15BA22-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - GET STANDBY DURATION
	AX = BA22h
Return:	CF clear if successful
	   BL = standy duration in minutes (01h-0Fh), or 00h if disabled
	CF set on error (function not supported)
Note:	The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
	  instead of (N*60) seconds as documented.
SeeAlso: AX=BA20h,AX=BA21h
--------p-15BA23-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - TURN ON THE SCREEN IMMEDIATELY
	AX = BA23h
Return: CF clear if successful
	CF set on error
SeeAlso: AX=BA11h,AX=BA20h,AX=BA24h
--------p-15BA24-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - TURN OFF THE SCREEN IMMEDIATELY
	AX = BA24h
Return: CF clear if successful
	CF set on error
Note:	This function is not implemented yet. Reserved for future versions
	  of the OmniShare.
SeeAlso: AX=BA11h,AX=BA20h,AX=BA23h
--------p-15BA25-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - PREPARE FOR UNINSTALL
	AX = BA25h
Return: CF clear if successful
	    AX = 25BAh
	    BX = PSP of STANDBY.COM resident portion
	    DX:CX -> previous INT 15 handler
	CF set on error
Note:	This function is used internally by the STANDBY.COM /u option, and
	  should not be used by application programs.
SeeAlso: AX=BA20h
--------p-15BA26-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - IS THE DISPLAY IN STANDBY MODE?
	AX = BA26h
Return: CF clear if successful
	    AL	= display state (00h active, 01h in standby mode)
	CF set on error (function not supported)
SeeAlso: AX=BA20h,AX=BA23h
--------p-15BA27-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - RESERVED FUNCTIONS
	AX = BA27h to BA2Fh
Desc:	reserved for future use
--------b-15BC-------------------------------
INT 15 - Phoenix 386 BIOS - DETERMINE CPU SPEED FOR DELAY LOOPS
	AH = BCh
Return: CF clear
	(Phoenix 1.10 10a) BYTE 0040h:00B0h set to delay loop count
	(Dell 4xxDE BIOS A11) WORD 0040h:00ECh set to delay loop count
Note:	this function reads system timer channel 0 twice, then does
	  calculations on the returned values to determine the delay loop
	  counter needed by the BIOS for beeps and floppy timeouts
SeeAlso: AX=2305h
--------E-15BF00-----------------------------
INT 15 - Rational Systems DOS/16M - ???
	AX = BF00h
	???
Return: ???
Note:	under DESQview/X 1.02 DVDOS4GX.DVR, this call is identical to AX=BF02h
SeeAlso: AX=BF02h
--------E-15BF01-----------------------------
INT 15 - Rational Systems DOS/16M - ???
	AX = BF01h
	???
Return: ???
Notes:	under DESQview/X 1.02 DVDOS4GX.DVR, this call is identical to AX=BF02h
	called by DOS/4GW
SeeAlso: AX=BF00h,AX=BF02h
--------E-15BF02DX0000-----------------------
INT 15 - Rational Systems DOS/16M - INSTALLATION CHECK
	AX = BF02h
	DX = 0000h
Return: DX = nonzero if installed
	    DX:SI -> XBRK structure (see #0382)
Note:	this function is also supported by DOS/4G
SeeAlso: AX=BF01h,AX=BFDCh,AX=BFDEh/BX=0000h
SeeAlso: INT 21/AH=FFh/DH=0Eh,INT 2F/AH=A1h,INT 2F/AX=F100h,INT 2F/AX=FBA1h

Format of DOS/16M XBRK structure:
Offset	Size	Description	(Table 0382)
 00h	DWORD	linear address of first available byte
 04h	DWORD	linear address of last available byte + 1 ???
 08h	DWORD	real-mode address of XBRK structure???
 0Ch	DWORD	???
 10h  2 BYTEs	???
 12h	WORD	segment of ???
 14h  8 BYTEs	???
 1Ch 512 BYTEs	protected-mode IDT
21Ch  N BYTEs	protected-mode GDT
--------E-15BF03-----------------------------
INT 15 - Rational Systems DOS/4GW - UNINSTALL???
	AX = BF03h
	BX = PSP segment of extender
	???
Return: ???
Note:	if BX is not the PSP segment of the extender, it passes the call down
	  the INT 15 chain; this allows nested instances of the extender
SeeAlso: AX=BF06h
--------E-15BF04-----------------------------
INT 15 - Rational Systems DOS/4GW - ???
	AX = BF04h
	BX = PSP segment of extender
Return: nothing???
Notes:	if BX is not the PSP segment of the extender, it passes the call down
	  the INT 15 chain; this allows nested instances of the extender
	grabs INT 2Fh and installs handlers for INT 2F/AX=1605h-1607h
SeeAlso: INT 2F/AX=1607h/BX=22C0h
--------E-15BF05-----------------------------
INT 15 - Rational Systems DOS/4GW - INITIALIZE PROTECTED-MODE INTERFACE
	AX = BF05h
	BX = PSP segment of extender
Return: nothing???
Notes:	if BX is not the PSP segment of the extender, it passes the call down
	  the INT 15 chain; this allows nested instances of the extender
	calls INT 67/AX=DE01h if ???
--------E-15BF06-----------------------------
INT 15 - Rational Systems DOS/4GW - ???
	AX = BF06h
	BX = PSP segment of extender
	???
Return: ???
Note:	if BX is not the PSP segment of the extender, it passes the call down
	  the INT 15 chain; this allows nested instances of the extender
SeeAlso: AX=BF03h
--------E-15BFDCDX0000-----------------------
INT 15 - Rational Systems DOS/4GW - INSTALLATION CHECK
	AX = BFDCh
	DX = 0000h
	SI = 0000h
Return: DX = nonzero if installed
	    DX:SI -> XBRK structure (see #0382)
SeeAlso: AX=BF02h
--------E-15BFDEBX0000-----------------------
INT 15 - DESQview/X - DVDOS4GX.DVR - INSTALLATION CHECK
	AX = BFDEh
	BX = 0000h
Return: AX = ??? (0003h)
	BX = FFFFh
SeeAlso: AX=BF02h
--------E-15BFDEBX0001-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET PROCESS MANAGER NAME
	AX = BFDEh
	BX = 0001h
Return: BX = 0000h (success)
	CX:DX -> name of process manager executable
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0002-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
	AX = BFDEh
	BX = 0002h
	CX:DX -> ???
Return: BX = 0000h (success)
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0003h
--------E-15BFDEBX0003-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
	AX = BFDEh
	BX = 0003h
Return: BX = 0000h (success)
	CX:DX -> ???
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0002h
--------E-15BFDEBX0004-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 0004h
	CL = ???
Return: BX = 0000h (success)
	CX:DX -> XBRK structure (see #0382)
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0005-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 0005h
	CX = new value for ???
Return: BX = 0000h (success)
	AX = old value of ???
	DS:SI -> ??? (if AX nonzero on return)
	ES:DI -> ??? (if AX zero on return)
Note:	called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0006-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
	AX = BFDEh
	BX = 0006h
Return: BX = 0000h (success)
	AH = interrupt number??? (BEh)
	CX:DX = ???
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0007h,INT BE"DESQview"
--------E-15BFDEBX0007-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
	AX = BFDEh
	BX = 0007h
	CX:DX = ???
Return: BX = 0000h (success)
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0006h
--------E-15BFDEBX0008-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 0008h
	CX = segment of ???
	DS = ???
Return: BX = status
	    0000h successful
		AL = ??? (80h or C0h)
		DX = ??? (0603h) if AL=C0h
	    0001h failed
		AX = 0000h
Note:	called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0009-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET PROTECTED MODE PROGRAM LOADER
	AX = BFDEh
	BX = 0009h
Return: BX = 0000h (success)
	CX:DX -> full pathname to LOAD32.EXP
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX000A-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - DECREMENT ???
	AX = BFDEh
	BX = 000Ah
Return: BX = 0000h (success)
	AX = new value of ??? counter
Notes:	also resets a variety of values if the counter goes negative
	called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Bh
--------E-15BFDEBX000B-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - INCREMENT ???
	AX = BFDEh
	BX = 000Bh
Return: AX = new value of ??? counter
Note:	called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Ah
--------E-15BFDEBX000C-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 000Ch
	CL = ???
	    00h
	    nonzero
Return: ???
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX000D-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 000Dh
	???
Return: ???
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX000E-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 000Eh
	DX:CX -> ???
Return: AX = segment of handle for calling task
	BX = ??? (probably destroyed)
	DX:CX -> ???
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Fh,AX=BFDEh/BX=0013h
--------E-15BFDEBX000F-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
	AX = BFDEh
	BX = 000Fh
Return: AX = segment of handle for calling task
	BX = ??? (probably destroyed)
	DX:CX -> ???
Note:	identical to AX=BFDEh/BX=000Eh with CX:DX = 0000h:0000h
SeeAlso: AX=BFDEh/BX=000Eh,AX=BFDEh/BX=0010h
--------E-15BFDEBX0010-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET TASK HANDLE
	AX = BFDEh
	BX = 0010h
Return: AX = segment of caller's task handle
	BX destroyed
SeeAlso: AX=BFDEh/BX=000Fh
--------E-15BFDEBX0011-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
	AX = BFDEh
	BX = 0011h
Return: CX = code segment of DVDOS4GX.DVR
	BX = ??? (0004h)
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0012-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
	AX = BFDEh
	BX = 0012h
Return: DX = code segment of DVDOS4GX.DVR
	BX = ??? (012Ch)
	CX = ??? (0006h)
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0013-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
	AX = BFDEh
	BX = 0013h
Return: DX:CX -> ???
SeeAlso: AX=BFDEh/BX=000Eh
--------E-15BFDEBX0014-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - LOCK ??? MAILBOX
	AX = BFDEh
	BX = 0014h
	CX = index of ??? mailbox
		(0000h-0004h valid, but no range checking done)
Return: AX,BX destroyed
SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h
--------E-15BFDEBX0015-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - UNLOCK ??? MAILBOX
	AX = BFDEh
	BX = 0015h
	CX = index of ??? mailbox
		(0000h-0004h valid, but no range checking done)
Return: AX,BX destroyed
SeeAlso: AX=BFDEh/BX=0014h,AX=BFDEh/BX=0016h
--------E-15BFDEBX0016-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - CHECK IF ??? MAILBOX OWNED
	AX = BFDEh
	BX = 0016h
	CX = index of ??? mailbox
		(0000h-0004h valid, but no range checking done)
Return: AX = status
	    0000h no one owns mailbox
	    0001h mailbox has an owner
	BX destroyed
SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h
--------E-15BFDEBX0017-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ??? MAILBOX OWNER
	AX = BFDEh
	BX = 0017h
	CX = index of ??? mailbox
		(0000h-0004h valid, but no range checking done)
Return: AX = segment of mailbox owner's handle
	BX = segment of caller's task handle
SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0016h
--------E-15BFDEBXFFFD-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
	AX = BFDEh
	BX = FFFDh
Return: CX:DX = ???
SeeAlso: AX=BFDEh/BX=FFFEh
--------E-15BFDEBXFFFE-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
	AX = BFDEh
	BX = FFFEh
	CX:DX = ???
SeeAlso: AX=BFDEh/BX=FFFDh
--------E-15BFDEBXFFFF-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - NOP
	AX = BFDEh
	BX = FFFFh
SeeAlso: AX=BFDEh/BX=0000h
--------B-15C0-------------------------------
INT 15 - SYSTEM - GET CONFIGURATION (XT after 1/10/86,AT mdl 3x9,CONV,XT286,PS)
	AH = C0h
Return: CF set if BIOS doesn't support call
	CF clear on success
	    ES:BX -> ROM table (see #0383)
	AH = status
	    00h successful
		 86h unsupported function
Notes:	the 1/10/86 XT BIOS returns an incorrect value for the feature byte
	the configuration table is at F000h:E6F5h in 100% compatible BIOSes
	Dell machines contain the signature "DELL" or "Dell" at absolute FE076h
	  and a model byte at absolute address FE845h (see #0389)
	Hewlett-Packard machines contain the signature "HP" at F000h:00F8h and
	  a product identifier at F000h:00FAh (see #0392)
	Compaq machines can be identified by the signature string "COMPAQ" at
	  F000h:FFEAh, and is preceded by additional information (see #0390)
	Tandy 1000 machines contain 21h in the byte at F000h:C000h and FFh in
	  the byte at FFFFh:000Eh; Tandy 1000SL/TL machines only provide the
	  first three data bytes (model/submodel/revision) in the returned
	  table
	Toshiba laptops contain the signature "TOSHIBA" at FE010h as part of
	  a laptop information record at F000h:E000h (see #0393)
	some AST machines contain the string "COPYRIGHT AST RESEARCH" one byte
	  past the end of the configuration table
	the Phoenix 386 BIOS contains a second version and date string
	  (presumably the last modification for that OEM version) beginning at
	  F000h:FFD8h, with each byte doubled (so that both ROM chips contain
	  the complete information)
SeeAlso: AH=C7h,AH=C9h,AH=D1h

Format of ROM configuration table:
Offset	Size	Description	(Table 0383)
 00h	WORD	number of bytes following
 02h	BYTE	model (see #0388)
 03h	BYTE	submodel (see #0388)
 04h	BYTE	BIOS revision: 0 for first release, 1 for 2nd, etc.
 05h	BYTE	feature byte 1 (see #0384)
 06h	BYTE	feature byte 2 (see #0385)
 07h	BYTE	feature byte 3 (see #0386)
 08h	BYTE	feature byte 4 (see #0387)
 09h	BYTE	feature byte 5:
		reserved (0) (IBM)
		??? (08h) (Phoenix 386 v1.10)
---AWARD BIOS---
 0Ah  N BYTEs	AWARD copyright notice
---Phoenix BIOS---
 0Ah	BYTE	??? (00h)
 0Bh	BYTE	major version
 0Ch	BYTE	minor version (BCD)
 0Dh  4 BYTEs	ASCIZ string "PTL" (Phoenix Technologies Ltd)
---Quadram Quad386---
 0Ah 17 BYTEs	ASCII signature string "Quadram Quad386XT"

Bitfields for feature byte 1:
Bit(s)	Description	(Table 0384)
 7	DMA channel 3 used by hard disk BIOS
 6	2nd 8259 installed
 5	Real-Time Clock installed
 4	INT 15/AH=4Fh called upon INT 09h
 3	wait for external event (INT 15/AH=41h) supported
 2	extended BIOS area allocated (usually at top of RAM)
 1	bus is Micro Channel instead of ISA
 0	system has dual bus (Micro Channel + ISA)
SeeAlso: #0383,#0385

Bitfields for feature byte 2:
Bit(s)	Description	(Table 0385)
 7	reserved
 6	INT 16/AH=09h (keyboard functionality) supported (see #0445)
 5	INT 15/AH=C6h (get POS data) supported
 4	INT 15/AH=C7h (return memory map info) supported
 3	INT 15/AH=C8h (en/disable CPU functions) supported
 2	non-8042 keyboard controller
 1	data streaming supported
 0	reserved
SeeAlso: #0383,#0386,AH=C6h,AH=C7h,AH=C8h,INT 16/AH=09h

Bitfields for feature byte 3:
Bit(s)	Description	(Table 0386)
 7-5	reserved
 4	??? (set on 1992 PS/1's, N51SX, CL57SX, 35SX?, 40SX?)
 3	SCSI subsystem supported on system board
 2	information panel installed
 1	IML (Initial Machine Load) system
 0	SCSI supported in IML
SeeAlso: #0383,#0385,#0386

Bitfields for feature byte 4:
Bit(s)	Description	(Table 0387)
 7	??? (set on N51SX, CL57SX)
 6-4	reserved
 3	??? (set on some 1992 PS/1's, 35SX, 40SX)
 2-1	reserved
 0	??? (set on N51SX, CL57SX, 57SX)
SeeAlso: #0383,#0386

(Table 0388)
Values for model/submodel/revision:
Model  Submdl  Rev	BIOS date	System
 FFh	*	*	04/24/81	PC (original)
 FFh	*	*	10/19/81	PC (some bugfixes)
 FFh	*	*	10/27/82	PC (HD, 640K, EGA support)
 FFh	00h	rev	  ???		Tandy 1000SL
 FFh	01h	rev	  ???		Tandy 1000TL
 FFh	46h	***	  ???		Olivetti M15
 FEh	*	*	08/16/82	PC XT
 FEh	*	*	11/08/82	PC XT and Portable
 FEh	*	*	../..x..	Toshiba laptops up to ~1987
					("x"=product ID) (see #0394)
 FEh	43h	***	  ???		Olivetti M240
 FEh	A6h	???	  ???		Quadram Quad386
 FDh	*	*	06/01/83	PCjr
 FCh	*	*	01/10/84	AT models 068,099 6 MHz 20MB
 FCh	00h	00h	  ???		PC3270/AT
 FCh	00h	01h	06/10/85	AT model  239	  6 MHz 30MB
 FCh	00h	> 01h	  ???		7531/2 Industrial AT
 FCh	01h	00h	11/15/85	AT models 319,339 8 MHz, Enh Keyb, 3.5"
 FCh	01h	00h	09/17/87	Tandy 3000
 FCh	01h	00h	../..x..	Toshiba laptops since ~1988
					("x"=product ID) (see #0394)
 FCh	01h	00h	03/08/93	Compaq DESKPRO/i
 FCh	01h	00h	 various	Compaq DESKPRO, SystemPro, ProSignia
 FCh	01h	00h	07/20/93	Zenith Z-Lite 425L
 FCh	01h	00h	04/09/90	AMI BIOS
 FCh	01h	20h	06/10/92	AST
 FCh	01h	30h	  ???		Tandy 3000NL
 FCh	01h	???	  ???		Compaq 286/386
 FCh	02h	00h	04/21/86	PC XT-286
 FCh	02h	00h	 various	Compaq LTE Lite
 FCh	02h	00h	08/05/93	Compaq Contura 486/486c/486cx
 FCh	02h	00h	08/11/88	SoftWindows 1.0.1 (Power Macintosh)
 FCh	04h	00h	02/13/87     ** PS/2 Model 50 (10 MHz/1 ws 286)
 FCh	04h	01h	05/09/87	PS/2 Model 50 (10 Mhz 286, LW-type 32)
 FCh	04h	02h	  ???		PS/2 Model 50
 FCh	04h	02h	01/28/88	PS/2 Model 50Z (10 Mhz 286, LW-type 33)
 FCh	04h	03h	04/18/88	PS/2 Model 50Z (10 MHz/0 ws 286)
 FCh	04h	04h	  ???		PS/2 Model 50Z
 FCh	05h	00h	02/13/87     ** PS/2 Model 60 (10 MHz 286)
 FCh	06h	00h	  ???		IBM 7552-140 "Gearbox"
 FCh	06h	01h	  ???		IBM 7552-540 "Gearbox"
 FCh	08h	***	  ???		Epson, unknown model
 FCh	08h	00h	  ???		PS/2 Model 25/286
 FCh	09h	00h	  ???		PS/2 Model 25 (10 MHz 286)
 FCh	09h	00h	08/25/88	PS/2 Model 30 286 (10 Mhz, LW-type 37)
 FCh	09h	02h	06/28/89	PS/2 Model 30-286
 FCh	09h	02h	06/28/89	PS/2 Model 25 286 (10 Mhz, LW-type 37)
 FCh	0Bh	00h	12/01/89	PS/1 (LW-Type 44)
 FCh	0Bh	00h	02/16/90	PS/1 Model 2011 (10 MHz 286)
 FCh	20h	00h	02/18/93	Compaq ProLinea
 FCh	30h	***	  ???		Epson, unknown model
 FCh	31h	***	  ???		Epson, unknown model
 FCh	33h	***	  ???		Epson, unknown model
 FCh	42h	***	  ???		Olivetti M280
 FCh	45h	***	  ???		Olivetti M380 (XP 1, XP3, XP 5)
 FCh	48h	***	  ???		Olivetti M290
 FCh	4Fh	***	  ???		Olivetti M250
 FCh	50h	***	  ???		Olivetti M380 (XP 7)
 FCh	51h	***	  ???		Olivetti PCS286
 FCh	52h	***	  ???		Olivetti M300
 FCh	81h	00h	01/15/88	Phoenix 386 BIOS v1.10 10a
 FCh	81h	01h	  ???		"OEM machine"
 FCh	82h	01h	  ???		"OEM machine"
 FCh	94h	00h	  ???		Zenith 386
 FBh	00h	01h	01/10/86	PC XT-089, Enh Keyb, 3.5" support
 FBh	00h	01h	05/13/94	HP 200LX 2MB BIOS 1.01 A D german
 FBh	00h	02h	05/09/86	PC XT
 FBh	00h	04h	08/19/93	HP 100LX 1MB BIOS 1.04 A
 FBh	4Ch	***	  ???		Olivetti M200
 FAh	00h	00h	09/02/86	PS/2 Model 30 (8 MHz 8086)
 FAh	00h	01h	12/12/86	PS/2 Model 30
 FAh	00h	02h	02/05/87	PS/2 Model 30
 FAh	01h	00h	06/26/87	PS/2 Model 25/25L (8 MHz 8086)
 FAh	30h	00h	  ???		IBM Restaurant Terminal
 FAh	4Eh	***	  ???		Olivetti M111
 FAh	FEh	00h	  ???		IBM PCradio 9075
 F9h	00h	00h	09/13/85	PC Convertible
 F9h	FFh	00h	  ???		PC Convertible
 F8h	00h	00h	03/30/87     ** PS/2 Model 80 (16MHz 386)
 F8h	00h	00h	  ???		PS/2 Model 75 486 (33Mhz 486)
 F8h	01h	00h	10/07/87	PS/2 Model 80 (20MHz 386)
 F8h	02h	00h	  ???		PS/2 Model 55-5571
 F8h	04h	00h	01/29/88	PS/2 Model 70 (20 Mhz 386DX,LW-type 33)
 F8h	04h	02h	04/11/88	PS/2 Model 70 20MHz, type 2 system brd
 F8h	04h	03h	03/17/89	PS/2 Model 70 20MHz, type 2 system brd
 F8h	05h	00h	  ???		IBM PC 7568
 F8h	06h	00h	  ???		PS/2 Model 55-5571
 F8h	07h	00h	  ???		IBM PC 7561/2
 F8h	07h	01h	  ???		PS/2 Model 55-5551
 F8h	07h	02h	  ???		IBM PC 7561/2
 F8h	07h	03h	  ???		PS/2 Model 55-5551
 F8h	09h	00h	01/29/88	PS/2 Model 70 16MHz 386DX, type 1 sysbd
 F8h	09h	02h	04/11/88	PS/2 Model 70 some models
 F8h	09h	03h	03/17/89	PS/2 Model 70 some models
 F8h	09h	04h	12/15/89	PS/2 Model 70 (16 Mhz 386, LW-type 33)
 F8h	0Bh	00h	01/18/89	PS/2 Model P70 (8573-121) typ 2 sys brd
 F8h	0Bh	02h	12/16/89	PS/2 Model P70 ??
 F8h	0Ch	00h	11/02/88	PS/2 Model 55SX (16 MHz 386SX)
 F8h	0Dh	00h	  ???		PS/2 Model 70 25MHz, type 3 system brd
 F8h	0Dh	00h	06/08/88	PS/2 Model 70 386 25MHz, type 3 sys brd
 F8h	0Dh	01h	02/20/89	PS/2 Model 70 386 25MHz, type 3 sys brd
 F8h	0Dh	???	12/01/89	PS/2 Model 70 486 25Mhz, type 3 sys brd
 F8h	0Eh	00h	  ???		PS/1 486SX
 F8h	0Fh	00h	  ???		PS/1 486DX
 F8h	10h	00h	  ???		PS/2 Model 55-5551
 F8h	11h	00h	10/01/90	PS/2 Model 90 XP (25 MHz 486)
 F8h	12h	00h	  ???		PS/2 Model 95 XP
 F8h	13h	00h	10/01/90	PS/2 Model 90 XP (33 MHz 486)
 F8h	14h	00h	10/01/90	PS/2 Model 90-AK9 (25 MHz 486), 95 XP
 F8h	15h	00h	  ???		PS/2 Model 90 XP
 F8h	16h	00h	10/01/90	PS/2 Model 90-AKD / 95XP486 (33MHz 486)
 F8h	17h	00h	  ???		PS/2 Model 90 XP
 F8h	19h	05h	  ???		PS/2 Model 35/35LS or 40 (20 MHz 386SX)
 F8h	19h	05h	03/15/91	PS/2 Model 35 SX / 40 SX (LW-type 37)
 F8h	19h	06h	04/04/91	PS/2 Model 35 SX / 40 SX (LW-type 37)
 F8h	1Ah	00h	  ???		PS/2 Model 95 XP
 F8h	1Bh	00h	09/29/89	PS/2 Model 70 486 (25 Mhz 386DX)
 F8h	1Bh	00h	10/02/89	PS/2 Model 70-486 (25 MHz 486)
 F8h	1Ch	00h	02/08/90	PS/2 Model 65-121 / 65 SX (16MHz 386SX)
 F8h	1Eh	00h	02/08/90	PS/2 Model 55LS (16 MHz 386SX)
 F8h	23h	00h	  ???		PS/2 Model L40 SX
 F8h	23h	01h	  ???		PS/2 Model L40 SX (20 MHz 386SX)
 F8h	23h	02h	02/27/91	PS/2 Model L40 SX (20Mhz386SX,LW-typ37)
 F8h	25h	00h	  ???		PS/2 Model 57 SLC
 F8h	25h	06h	  ???		PS/2 Model M57 (20 MHz 386SLC)
 F8h	26h	00h	  ???		PS/2 Model 57 SX
 F8h	26h	01h	  ???		PS/2 Model 57 (20 MHz 386SX)
 F8h	26h	02h	07/03/91	PS/2 Model 57 SX (20Mhz 386SX, SCSI)
 F8h	28h	00h	  ???		PS/2 Model 95 XP
 F8h	29h	00h	  ???		PS/2 Model 90 XP
 F8h	2Ah	00h	  ???		PS/2 Model 95 XP (50 MHz 486)
 F8h	2Bh	00h	  ???		PS/2 Model 90 / 90XP486 (50 MHz 486)
 F8h	2Ch	00h	  ???		PS/2 Model 95 XP
 F8h	2Ch	01h	  ???		PS/2 Model 95 (20 MHz 486SX)
 F8h	2Dh	00h	  ???		PS/2 Model 90 XP (20 MHz 486SX)
 F8h	2Eh	00h	  ???		PS/2 Model 95 XP
 F8h	2Eh	00h	  ???		PS/2 Model 95 XP486 (20 Mhz 486SX)
 F8h	2Eh	01h	  ???		PS/2 Model 95 (20 MHz 486SX + 487SX)
 F8h	2Fh	00h	  ???		PS/2 Model 90 XP (20 MHz 486SX + 487SX)
 F8h	30h	00h	  ???		PS/1 Model 2121 (16 MHz 386SX)
 F8h	33h	00h	  ???		PS/2 Model 30-386
 F8h	34h	00h	  ???		PS/2 Model 25-386
 F8h	36h	00h	  ???		PS/2 Model 95 XP
 F8h	37h	00h	  ???		PS/2 Model 90 XP
 F8h	38h	00h	  ???		PS/2 Model 57
 F8h	39h	00h	  ???		PS/2 Model 95 XP
 F8h	3Fh	00h	  ???		PS/2 Model 90 XP
 F8h	40h	00h	  ???		PS/2 Model 95 XP
 F8h	41h	00h	  ???		PS/2 Model 77
 F8h	45h	00h	  ???		PS/2 Model 90 XP (Pentium)
 F8h	46h	00h	  ???		PS/2 Model 95 XP (Pentium)
 F8h	47h	00h	  ???		PS/2 Model 90/95 E (Pentium)
 F8h	48h	00h	  ???		PS/2 Model 85
 F8h	49h	00h	  ???		PS/ValuePoint 325T
 F8h	4Ah	00h	  ???		PS/ValuePoint 425SX
 F8h	4Bh	00h	  ???		PS/ValuePoint 433DX
 F8h	4Eh	00h	  ???		PS/2 Model 295
 F8h	50h	00h	  ???		PS/2 Model P70 (8573) (16 MHz 386)
 F8h	50h	01h	12/16/89	PS/2 Model P70 (8570-031)
 F8h	52h	00h	  ???		PS/2 Model P75 (33 MHz 486)
 F8h	56h	00h	  ???		PS/2 Model CL57 SX
 F8h	57h	00h	  ???		PS/2 Model 90 XP
 F8h	58h	00h	  ???		PS/2 Model 95 XP
 F8h	59h	00h	  ???		PS/2 Model 90 XP
 F8h	5Ah	00h	  ???		PS/2 Model 95 XP
 F8h	5Bh	00h	  ???		PS/2 Model 90 XP
 F8h	5Ch	00h	  ???		PS/2 Model 95 XP
 F8h	5Dh	00h	  ???		PS/2 Model N51 SLC
 F8h	5Eh	00h	  ???		IBM ThinkPad 700
 F8h	61h	***	  ???		Olivetti P500
 F8h	62h	***	  ???		Olivetti P800
 F8h	80h	00h	  ???		PS/2 Model 80 (25 MHz 386)
 F8h	80h	01h	11/21/89	PS/2 Model 80-A21 (25 Mhz 386)
 F8h	81h	00h	  ???		PS/2 Model 55-5502
 F8h	87h	00h	  ???		PS/2 Model N33SX
 F8h	88h	00h	  ???		PS/2 Model 55-5530T
 F8h	97h	00h	  ???		PS/2 Model 55 Note N23SX
 F8h	99h	00h	  ???		PS/2 Model N51 SX
 F8h	F2h	30h	  ???		Reply Model 32
 F8h	F6h	30h	  ???		Memorex Telex
 F8h	FDh	00h	  ???		IBM Processor Complex (with VPD)
 F8h	???	???	  ???		PS/2 Model 90 (25 MHz 486SX)
 F8h	???	???	  ???		PS/2 Model 95 (25 MHz 486SX)
 F8h	???	???	  ???		PS/2 Model 90 (25 MHz 486SX + 487SX)
 F8h	???	???	  ???		PS/2 Model 95 (25 MHz 486SX + 487SX)
 E1h	???	???	  ???		??? (checked for by DOS4GW.EXE)
 E1h	00h	00h	  ???		PS/2 Model 55-5530 Laptop
 9Ah	*	*	  ???		Compaq XT/Compaq Plus
 30h	???	???	  ???		Sperry PC
 2Dh	*	*	  ???		Compaq PC/Compaq Deskpro
 ???	56h	???	  ???		Olivetti, unknown model
 ???	74h	???	  ???		Olivetti, unknown model
Notes:
    * This BIOS call is not implemented in these early versions.
      Read Model byte at F000h:FFFEh and BIOS date at F000h:FFF5h.
   ** These BIOS versions require the DASDDRVR.SYS patches.
  *** These Olivetti and Epson machines store the submodel in the byte at
	F000h:FFFDh.
SeeAlso: #0383,#0389

(Table 0389)
Values for Dell model byte:
 02h	Dell 200
 03h	Dell 300
 05h	Dell 220
 06h	Dell 310
 07h	Dell 325
 09h	Dell 310A
 0Ah	Dell 316
 0Bh	Dell 220E
 0Ch	Dell 210
 0Dh	Dell 316SX
 0Eh	Dell 316LT
 0Fh	Dell 320LX
 11h	Dell 425E
SeeAlso: #0383,#0388

Format of Compaq product information:
Address		Size	Description	(Table 0390)
 F000h:FFE4h	BYTE	product family code (first byte)
 F000h:FFE4h	BYTE	Point release number
 F000h:FFE4h	BYTE	ROM version code
 F000h:FFE4h	BYTE	product family code (second byte)
 F000h:FFE8h	WORD	BIOS type code
SeeAlso: #0391,#0393

Format of Hewlett-Packard ROM ID at F000h:00F8h:
Offset	Size	Description	(Table 0391)
 00h  2 BYTEs	signature "HP" (48h 50h)
 02h  2 BYTEs	00h 00h
 04h	BYTE	secondary code revision
 05h	BYTE	primary code revision
 06h	BYTE	date code, year-1960 (BCD)
 07h	BYTE	date code, week of year (BCD)
SeeAlso: #0390,#0392

Bitfields for Hewlett-Packard product identifier:
Bit(s)	Description	(Table 0392)
 4-0	machine code
	0 original Vectra
	1 ES/12
	2 RS/20
	3 Portable/CS
	4 ES
	5 CS
	6 RS/16
	other reserved
 7-5	CPU type
	0 = 80286
	1 = 8088
	2 = 8086
	3 = 80386
	other reserved
SeeAlso: #0391

Format of Toshiba laptop information:
Offset	Size	Description	(Table 0393)
 00h  8 BYTEs	ASCII product number (e.g. "T2200SX ")
 08h  8 BYTEs	ASCII version number (e.g. "V1.20   ")
 10h  8 BYTEs	ASCII signature string "TOSHIBA "
 18h  8 BYTEs	always zero???
 20h	DWORD	-> built-in BIOS setup program entry point or 0000h:0000h
Note:	this record is located at F000h:E000h
SeeAlso: #0390,#0391

(Table 0394)
Values for Toshiba product ID:
model prodID   version	  date		product number	  /hdd
 FEh	29h		../..)..   Toshiba T1000LE
 FEh	2Ah		../..*..   Toshiba T1000XE
 FEh	2Bh		../..+..   Toshiba T1000SE
 FEh	2Ch		../..,..   Toshiba T1000      -
 FEh	2Dh		../..-..   Toshiba T1200F     -
 FEh	2Dh	V4.00	12/26-87   Toshiba T1200H    /20
 FEh	2Eh		../.....   Toshiba T1100+
 FCh	22h		../.."..   Toshiba T8500
 FCh	26h		01/15&88   Toshiba T5200     /100
 FCh	27h		../..'..   Toshiba T5100
 FCh	28h		../..(..   Toshiba T2000
 FCh	2Ah		12/26*89   Toshiba T1200XE
 FCh	2Bh		../..+..   Toshiba T1600
 FCh	2Ch		../..,..   Toshiba T3100e
 FCh	2Dh		../..-..   Toshiba T3200
 FCh	2Fh		../../..   Toshiba T3100
 FCh	34h		../..4..   Toshiba T100X
 FCh	38h		../..8..   Toshiba T2000SXe
 FCh	39h	V1.20	09/16991   Toshiba T2200SX   /60
 FCh	39h	V1.40	10/01992   Toshiba T2200SX   /120 (upgraded)
 FCh	3Ch	V1.50	01/28<91 toshiba="" t2000sx="" 0="" fch="" 3dh="" ../..=".." toshiba="" t3200sxc="" fch="" 3eh="" ../..="">..   Toshiba T3100SX
 FCh	3Fh		../..?..   Toshiba T3200SX
 FCh	40h		../..@..   Toshiba T4500C
 FCh	41h		04/05A92   Toshiba T4500     ("T4500SXC" ?)
 FCh	45h	V3.20	04/14E92   Toshiba T4400SX   ("C" or "SXC" on cover)
 FCh	45h		01/13E93   Toshiba T4400SXC
 FCh	46h *		../..F..   Toshiba T6400
 FCh	46h *		../..F..   Toshiba T6400C
 FCh	5Fh		../.._..   Toshiba T3300SL
 FCh	69h		../..i..   Toshiba T1900C
 FCh	6Ah		../..j..   Toshiba T1900
 FCh	6Dh		../..m..   Toshiba T1850C
 FCh	6Eh	V1.00	08/19n92   Toshiba T1850
 FCh	6Eh		12/25n92   Toshiba T1850
 FCh	6Fh		07/17o92   Toshiba T1800
 FCh	7Eh	V1.30	06/17~93   Toshiba T4600C
 FCh	7Fh		../..x..   Toshiba T4600
 FCh	8Ah		../..x..   Toshiba T6600C
 FCh	91h		../..x..   Toshiba T2400CS
 FCh	91h	V1.20	07/15x94   Toshiba T2400CT
 FCh	92h		../..x..   Toshiba T3600CT
 FCh	96h *		../..x..   Toshiba T200
 FCh	96h *		../..x..   Toshiba T200CS
 FCh	97h		../..x..   Toshiba T4800CT
 FCh	98h *	V1.10	12/22x93   Toshiba T1910     /120 /320
 FCh	98h *		../..x..   Toshiba T1910CS
 FCh	99h		../..x..   Toshiba T4700CS
 FCh	9Bh	V2.30	01/31x94   Toshiba T4700CT
 FCh	9Bh	V2.50	03/22x94   Toshiba T4700CT   /320
 FCh	9Ch	V1.30	01/11x94   Toshiba T1950CT   /320
 FCh	9Dh *		../..x..   Toshiba T1950
 FCh	9Dh *		../..x..   Toshiba T1950CS
 FCh	9Eh *	V1.20	12/25x93   Toshiba T3400     /120
 FCh	9Eh *	V1.30	03/22x94   Toshiba T3400     /250
 FCh	9Eh *		../..x..   Toshiba T3400CT
 FCh	???		../.. ..   Toshiba T1900S
 FCh	???		../.. ..   Toshiba T1900CT
Note:	BIOS version numbers and dates may vary, esp. due to harddisk and
	  flash BIOS upgrades
	the 8-bit ASCII graphics character in the "date" column above
	  has been substituted by "x" because it depends on code page
	[*] These models have monochrome and color versions which can only be
	  distinguished with INT 42/AX=7503h
SeeAlso: #0388
--------B-15C1-------------------------------
INT 15 - SYSTEM - RETURN EXTENDED-BIOS DATA-AREA SEGMENT ADDRESS (PS)
	AH = C1h
Return: CF set on error
	CF clear if successful
	    ES = segment of data area
SeeAlso: AH=04h"ABIOS"
--------M-15C200-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - ENABLE/DISABLE
	AX = C200h
	BH = new state
		 00h disabled
	    01h enabled
Return: CF set on error
	AH = status (see #0395)

(Table 0395)
Values for pointing device function status:
 00h	successful
 01h	invalid function
 02h	invalid input
 03h	interface error
 04h	need to resend
 05h	no device handler installed
--------M-15C201-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - RESET
	AX = C201h
Return: CF set on error
	    AH = status (see #0395)
	CF clear if successful
	    BH = device ID
	    BL = value returned by attached device after reset
		AAh if device is a mouse
Note:	after successful completion of this call, the pointing device is set
	  as follows: disabled, sample rate 100 Hz, resolution 4 counts/mm,
	  scaling 1:1, unchanged data package size
SeeAlso: INT 33/AX=0000h
--------M-15C202-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET SAMPLING RATE
	AX = C202h
	BH = sampling rate
	    00h 10/second
	    01h 20/second
	    02h 40/second
	    03h 60/second
	    04h 80/second
	    05h 100/second
	    06h 200/second
Return: CF set on error
	    AH = status (see #0395)
SeeAlso: INT 33/AX=001Ch
--------M-15C203-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET RESOLUTION
	AX = C203h
	BH = resolution (see #0396)
Return: CF set on error
	    AH = status (see #0395)

(Table 0396)
Values for pointing device resolution:
 00h	one count per mm
 01h	two counts per mm
 02h	four counts per mm
 03h	eight counts per mm
--------M-15C204-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - GET TYPE
	AX = C204h
Return: CF set on error
	    AH = status (see #0395)
	CF clear if successful
	    BH = device ID
--------M-15C205-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - INITIALIZE
	AX = C205h
	BH = data package size (1 - 8 bytes)
Return: CF set on error
	    AH = status (see #0395)
Note:	the pointing device is set as follows: disabled, 100 Hz sample rate,
	  resolution 4 counts/mm, scaling 1:1
SeeAlso: AX=C201h
--------M-15C206-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - EXTENDED COMMANDS
	AX = C206h
	BH = subfunction
	    00h return device status
		Return: BL = pointing device status (see #0397)
			CL = resolution (see #0396)
			DL = sample rate, reports per second
	    01h set scaling at 1:1
	    02h set scaling at 2:1
Return: CF set on error
	    AH = status (see #0395)

Bitfields for pointing device status:
Bit(s)	Description	(Table 0397)
 0	right button pressed
 1	reserved
 2	left button pressed
 3	reserved
 4	0 if 1:1 scaling, 1 if 2:1 scaling
 5	device enabled
 6	0 if stream mode, 1 if remote mode
 7	reserved
--------M-15C207-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET DEVICE HANDLER ADDR
	AX = C207h
	ES:BX -> FAR user device handler or 0000h:0000h to cancel
Return: CF set on error
	    AH = status (see #0395)
Note:	when the subroutine is called, it is passed the following values on
	  the stack; the handler should return with a FAR return without
	  popping the stack:
		WORD 1: status (see #0398)
		WORD 2: X data (high byte = 00h)
		WORD 3: Y data (high byte = 00h)
		WORD 4: 0000h
SeeAlso: INT 33/AX=000Ch

Bitfields for pointing device status:
Bit(s)	Description	(Table 0398)
 15-8	reserved (0)
 7	Y data overflowed
 6	X data overflowed
 5	Y data is negative
 4	X data is negative
 3	reserved (1)
 2	reserved (0)
 1	right button pressed
 0	left button pressed
--------B-15C3------------------------------
INT 15 - SYSTEM - ENABLE/DISABLE WATCHDOG TIMEOUT (PS50+)
	AH = C3h
	AL = function
	    00h disable PS/2 watchdog timer
	    01h enable PS/2 watchdog timer
		BX = timer counter (0001h-00FFh)
	    02h disable Gearbox system
	    03h enable Gearbox system
Return: CF set on error
	CF clear if successful
Note:	the watchdog timer generates an NMI
SeeAlso: INT 21/AH=2Bh/CX=6269h/DX=742Dh
--------B-15C4-------------------------------
INT 15 - SYSTEM - PROGRAMMABLE OPTION SELECT (PS50+)
	AH = C4h
	AL = subfunction
	    00h return base POS register address
	    01h enable selected slot for setup
		BL = slot number (1 to 8)
		 02h disable setup for all slots (enable adapter)
Return: CF set on error
	DX = base POS register address (if subfunction 00h)
SeeAlso: AH=C6h
--------B-15C5-------------------------------
INT 15 UC - OS HOOK - ROM BIOS TRACING CALLOUT (PS30/286,PS50Z,PS95)
	AH = C5h
	AL = interrupt being invoked
	    01h INT 19
	    02h INT 14
	    03h INT 16
	    04h INT 40 (floppy INT 13)
	    05h INT 17
	    06h INT 10
	    07h INT 12
	    08h INT 11
	    09h INT 1A
Return: all registers except AX must be preserved
Notes:	called as the very first action of the indicated ROM BIOS interrupt
	  handlers on the PS/2 Models 30/286, 50Z, and 95
	default handler does nothing and returns CF clear for the above
	  subfunctions, CF set and AH=86h for all other subfunctions
	value of AX passed to the original interrupt handler is pushed on
	  stack immediately prior to call
--------B-15C6-------------------------------
INT 15 U - later PS/2 models - GET POS DATA
	AH = C6h
	???
Return: ???
Notes:	this function is referenced by name and number in some IBM BIOS manuals
	IBM reports that "there are a number of problems with this call" and
	  does not recommend its use.
SeeAlso: AH=C4h
--------B-15C7-------------------------------
INT 15 - SYSTEM - later PS/2s - RETURN MEMORY-MAP INFORMATION
	AH = C7h
	DS:SI -> user supplied memory map table (see #0399)
Note:	call AH=C0h and examine bit 4 of feature byte 2 to check if this
	  function is supported
Return: CF set on error, clear if successful
SeeAlso: AH=C0h,AH=C9h,AH=D1h

Format of memory-map table structure:
Offset	Size	Description	(Table 0399)
 00h	WORD	length of table (excluding this word)
 02h	DWORD	local memory between 1M and 16M, in 1K blocks
 06h	DWORD	local memory between 16M and 4G, in 1K blocks
 0Ah	DWORD	system memory between 1M and 16M, in 1K blocks
 0Eh	DWORD	system memory between 16M and 4G, in 1K blocks
 12h	DWORD	cacheable memory between 1M and 16M, in 1K blocks
 16h	DWORD	cacheable memory between 16M and 4G, in 1K blocks
 1Ah	DWORD	1K blocks before start of non-system memory between 1M and 16M
 1Eh	DWORD	1K blocks before start of non-system memory between 16M and 4G
 22h  2 DWORDs	reserved
--------B-15C8-------------------------------
INT 15 - SYSTEM - ENABLE/DISABLE PROCESSOR FUNCTIONS
	AH = C8h
	AL = function
	    00h disable cache or (90 and 95) disable cache L1
	    01h enable cache or (90 and 95) enable cache L1
	    ---models 90 and 95 only---
	    02h disable cache L2
	    03h enable cache L2
	    04h disable both caches
	    05h enable both caches
	    06h return status of both caches
	    07h-FFh Reserved
Return: CF set on error
	CF clear if successful
		 AH = status (see #0400)
	For subfunction 06h only:
	    BH = status of cache L2
		00h enabled
		01h disabled or not installed
	    BL = status of cache L1 (same codes as BH)
Notes:	 supported by at least PS/2 70, 70/486, 80-A21, 90, 95
	call AH=C0h and examine bit 3 of feature byte 2 to check if this
	  function is supported.
	on a 486 system, any external caches must be disabled when the
	  on-chip cache (L1) is disabled.
SeeAlso: AH=C0h

(Table 0400)
Values for status:
 00h	operation successful
 01h	function choice (in AL) is invalid
 02h	NVRAM data is invalid
 03h	cache test error
 04h	(90 and 95 only) cannot perform operation requested due to state of
	  other cache (see note above)
 05h	no L2 cache is present
 09h	CPU in protected mode
--------B-15C9-------------------------------
INT 15 - newer PS/2; various BIOSes - GET CPU TYPE AND MASK REVISION
	AH = C9h
	AL = 10h (may be required on some non-PS BIOSes)
Return: CF clear if successful
	    AH = 00h
	    CH = CPU type (see #0401)
	    CL = mask revision (stepping level) (see #0402)
	CF set on error
	    AH = status (80h,86h = function not supported)
Notes:	the BIOS must save DX at startup in order to be able to support this
	  call; PS/2 Models 56, 57, 90, and 95 are known to support it
	the PS/2 BIOS merely reads CMOS locations 190h (type) and 191h (rev)

(Table 0401)
Values for CPU type:
 03h	80386DX or clone
 04h	80486
 05h	Pentium
 23h	80386SX or clone
 33h	Intel i376
 43h	80386SL or clone
 A3h	IBM 386SLC
 A4h	IBM 486SLC

(Table 0402)
Values for stepping level:
---i376 (type code 33h)---
 05h	A0
 08h	B
---80386/80386DX (type code 03h)---
 03h	Intel B1 to B10, Am386DX/DXL step A
 05h	Intel D0
 08h	Intel D1/D2/E1, Am386DX/DXL step B
---80386SL (type code 43h)---
 05h	A
 1xh	B
---80386SX (type code 23h)---
 04h	Intel A0
 05h	Intel B, Am386SX/SXL step A1
 08h	Intel C/D1, Am386SX/SXL step B
 09h	Intel 386CX/386EX/386SXstatic step A
---80486DX (type code 04h)---
 00h	Intel A0/A1
 01h	Intel B2 to B6
 02h	Intel C0
 03h	Intel C1
 04h	Intel D0
 10h	Intel cA2/cA3, Cx486SLC step A
 11h	Intel cB0/cB1
---486DX2 (type code 04h)---
 02h	Am486DX2 (unknown stepping)
 32h	Intel DX2/Overdrive steps A0 to A2
 33h	Intel DX2/Overdrive step B1
---486SX (type code 04h)---
 20h	Intel A0
 22h	Intel B0
 27h	Intel cA0
 28h	Intel cB0
---486SL (type code 04h)---
 40h	Intel A
---IntelSX2 (type code 04h)---
 5xh	Intel A
---IntelDX4 (type code 04h)---
 8xh	Intel A
---487SX (type code 04h)---
 20h	Intel A0
 21h	Intel B0
---Pentium (type code 05h)---
 0xh	Intel P5 steps Ax (1993)
 1xh	Intel P5 steps Bx (1994)
 2xh	Intel P54C step A
---RapidCAD (type code 03h)---
 40h	A
--------B-15CA-------------------------------
INT 15 U - PS/2 Model 95 - READ/WRITE CMOS MEMORY
	AH = CAh
	AL = function
	    00h read CMOS
		Return: CL = value of CMOS location
	    01h write CMOS
		CL = new value for CMOS location
	BL = CMOS location (0Eh-3Fh)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (see #0403)
Note:	writes do not update the CMOS checksum

(Table 0403)
Values for CMOS read/write error code:
 01h	CMOS lost power or has invalid checksum
 03h	specified location out of range (too high)
 04h	specified location out of range (too low)
 80h	unsupported function (PC)
 86h	unsupported function (XT)
--------B-15CB-------------------------------
INT 15 U - PS/2 Model 95 - RESERVED
	AH = CBh
	???
Return: ???
--------B-15CC-------------------------------
INT 15 U - PS/2 Model 95 - RESERVED
	AH = CCh
	???
Return: ???
--------V-15CCCC-----------------------------
INT 15 U - Toshiba laptops - VCHAD.EXE - INSTALLATION CHECK
	AX = CCCCh
Return: AX = ABCDh if installed
Note:	supported by Toshiba VGA change display utility VCHAD.EXE ver 2.90+
	  older versions have the string "VCHAD" 2 bytes after the address of
	  the INT 15 handler which is hooked by all versions for the SysReq key
SeeAlso: AH=85h
--------B-15CD-------------------------------
INT 15 U - PS/2 Model 95 - RESERVED
	AH = CDh
	???
Return: ???
--------B-15CE--BL00-------------------------
INT 15 - later PS/2s - ALLOCATE DMA ARBITRATION LEVEL
	AH = CEh
	BL = 00h-0Eh arbitration level to be allocated
	     0Fh-FFh reserved
	AL = option byte
	    bit 7-1: reserved (0)
	    bit 0: 0 = need DMA channel for arbitration level requested
		   1 = no channel required for arbitration level
Return: CF set on error
	    AH = status (80h,86h = function not supported)
	CF clear on success
	    AL = channel number
		00h-07h channel number allocated for the arbiration level
		08h-FEh reserved
		FFh	no channel requested for arbitration level
	    AH = status (see #0404)
Notes:	 arbitration level 00h has the highest priority, 0Eh the lowest
	 to perform a DMA transfer operation, be sure to call this function
		first, and call AH=CFh afterward.  Failure to use this function
	   can cause unpredictable results.
SeeAlso: AH=CFh

(Table 0404)
Values for DMA arbitration status:
 00h	success
 01h	arbitration level not available
 02h	channel not available
 03h	invalid arbitration level passed
--------B-15CF-------------------------------
INT 15 - later PS/2s - DEALLOCATE DMA ARBITRATION LEVEL
	AH = CFh
	BL = arbitration level to be deallocated (see AH=CEh)
Return: CF set on error
	    AH = status (80h,86h = function not supported)
	CF clear on success
	    AH = status
		00h success
		04h arbitration level not allocated
SeeAlso: AH=CEh
--------B-15D0-------------------------------
INT 15 - later PS/2s - RESERVED
	AH = D0h
	???
Return: ???
--------B-15D100DX0000-----------------------
INT 15 - later PS/2s - GET NUMBER OF DEVICE DESCRIPTOR TABLE (DDT) ENTRIES
	AX = D100h
	DX = 0000h (reserved, must set to 0)
Return: BL = size of one DDT entry, in bytes
	CX = number of DDT entries
	AH = return code (see #0405)
	CF set on error
	CF clear on success
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D101h,AX=D102h,AX=D103h,AX=D104h

(Table 0405)
Values for return code:
 00h	success
 01h	requested DDT entry not found
 02h	DDT data not valid
 86h	function not supported
--------B-15D101-----------------------------
INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY NUMBER
	AX = D101h
	BX = number of requested entry (starting with 1)
	DX = 0000h (reserved, must be set to 0)
	ES:DI -> buffer to contain DDT entry (see #0406)
Return:	AH = return code (see #0405)
	CF set on error
	CF clear on success
	    ES:DI buffer filled with DDT entry
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D102h,AX=D104h

Format of Device Descriptor Table (DDT):
Offset	Size	Description	(Table 0406)
 00h	BYTE	bits 7-4: reserved (set to 0)
		bits 3-0: slot of device (0 = system board)
 01h	BYTE	bits 7-4: second interrupt for this device (0 = none)
		bits 3-0: first interrupt for this device (0 = none)
 02h	BYTE	bits 7-4: second arbitration level for this device
		bits 3-0: first arbitration level for this device
 03h	WORD	DDT indicators (see #0407)
 05h	BYTE	reserved (0)
 06h	WORD	device ID (0 = none)
 08h	WORD	starting address of first  I/O block (0 = none)
 0Ah	WORD	starting address of second I/O block (0 = none)
 OCh	WORD	starting address of third  I/O block (0 = none)
 OEh	DWORD	start of first non-system memory block (0 = none)
 12h	WORD	size of first non-system memory block (in kilobytes)
 14h	DWORD	start of second non-system memory block (0 = none)
 18h	WORD	size of second non-system memory block (in kilobytes)
 1Ah	BYTE	implementation identifier of the device
 1Bh	BYTE	implementation revision level of the device
Note:	I/O block addresses and non-system memory addresses are listed in
	  ascending order in each DDT entry.

Bitfields for DDT indicators:
Bit(s)	Description	(Table 0407)
 15	reserved (0)
 14	second arbitration level exists
 13	first arbitration level exists
 12	serial interface is RS-422
 11	not address limited
 10	DMA channel used
 9	second arbitration level can be shared
 8	first arbitration level can be shared
 7-0	reserved (0)
--------B-15D102-----------------------------
INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY I/O ADDRSS
	AX = D102h
	BX = entry number at which to start searching
	CX = requested I/O port address
	DX = 0000h (reserved, must be set to 0)
	ES:DI -> buffer to contain DDT entry (see #0406)
Return:	AH = return code (see #0405)
	BX = DDT entry number where I/O port was found, or total entries
	     plus 1 if port was not found.
	CF set on error
	CF clear on success
	    ES:DI buffer filled with DDT entry
Desc:	the DDT is searched from the specified entry for the I/O port in CX,
	  and the first entry in which it is found is returned
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D101h,AX=D103h,AX=D104h
--------B-15D103DX0000-----------------------
INT 15 - later PS/2s - RETURN ENTIRE DDT
	AX = D103h
	DX = 0000h (reserved, must be set to 0)
	ES:DI -> buffer to contain DDT entry (see #0406)
Return:	AH = return code (see #0405)
	CF set on error
	CF clear on success
	    ES:DI buffer filled with DDT entry
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D104h
--------B-15D104-----------------------------
INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY DEVICE ID
	AX = D104h
	BX = entry number at which to start searching
	CX = requested device ID
	DX = 0000h (reserved, must be set to 0)
	ES:DI -> buffer to contain DDT entry (see #0406)
Return:	AH = return code (see #0405)
	BX = DDT entry number where device ID was found, or total entries
	      plus 1 if port was not found.
	CF set on error
	CF clear on success
	    ES:DI buffer filled with DDT entry
Desc:	the DDT is searched from the specified entry for the device ID in CX,
	  and the first entry in which it is found is returned.
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D101h,AX=D103h
--------B-15D2-------------------------------
INT 15 - later PS/2s - RESERVED
	AH = D2h
	???
Return: ???
--------B-15D3-------------------------------
INT 15 - later PS/2s - RESERVED
	AH = D3h
	???
Return: ???
--------B-15D4-------------------------------
INT 15 - later PS/2s - GET PHYSICAL FIXED DISK DRIVE NUMBER (SELECTABLE BOOT)
	AH = D4h
	DL = logical fixed disk drive number
Return:	AH = return code (see #0408)
	CF set on error
	CF clear on success
	    AL = physical fixed disk drive number

(Table 0408)
Values for return code:
 00h	success
 01h	specified logical drive number is invalid
 80h	function not supported (on PCjr and PC)
 86h	function not supported
--------B-15D5-------------------------------
INT 15 - later PS/2s - RESERVED
	AH = D5h
	???
Return: ???
--------B-15D600BL00-------------------------
INT 15 - later PS/2s - READ BOOT DEVICE ID
	AX = D600h
	BL = 00h
	DX = device ID
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=01h,AX=D601h/BL=00h,AX=D602h
--------B-15D600BL01-------------------------
INT 15 - later PS/2s - WRITE BOOT DEVICE ID
	AX = D600h
	BL = 01h
	DX = device ID
Return: CF clear on success
	    AH = 00h
	CF set on error
	    AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=00h,AX=D601h/BL=01h
--------B-15D601BL00-------------------------
INT 15 - later PS/2s - READ BOOT DEVICE KEY
	AX = D601h
	BL = 00h
	DX = device ID
Return: CF clear on success
	    AH = 00h
	CF set on error
	    AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=00h,AX=D601h/BL=01h,AX=D602h
--------B-15D601BL01-------------------------
INT 15 - later PS/2s - WRITE BOOT DEVICE KEY
	AX = D601h
	BL = 01h
	DX = device ID
Return: CF clear on success
	    AH = 00h
	CF set on error
	    AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=01h,AX=D601h/BL=00h
--------B-15D602-----------------------------
INT 15 - later PS/2s - QUERY BOOT REFERENCE PARTITION
	AX = D602h
Return: CF clear on success
	    AH = 00h
	    AL = status of reference-partition boot request
		00h boot not requested
		01h boot requested
	CF set on error
	    AH = status (86h for function not supported)
SeeAlso: AX=D601h/BL=00h
--------X-15D800-----------------------------
INT 15 - EISA SYSTEM ROM - READ SLOT CONFIGURATION INFORMATION
	AX = D800h
	CL = slot number (including embedded and virtual)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (80h,82h,83h,86h,87h)(see #0410)
	AL = bit flags (see #0409)
	BH = major revision level of configuration utility
	BL = minor revision level of configuration utility
	CX = checksum of configuration file
	DH = number of device functions
	DL = combined function information byte
	SI:DI = 4-byte compressed ID (DI = bytes 0&1, SI = bytes 2&3)
Note:	call with AL=80h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D801h,AX=D804h

Bitfields for EISA AL bit flags:
Bit(s)	Description	(Table 0409)
 7	set if duplicate IDs
 6	set if product ID readable
 4,5	slot type (00=expansion, 01=embedded, 10=virtual device)
 0-3	duplicate ID number if bit 7 set

(Table 0410)
Values for EISA error code:
 80h	invalid slot number
 81h	invalid function number
 82h	EISA CMOS corrupt
 83h	empty slot
 84h	error clearing CMOS
 85h	EISA CMOS is full
 86h	invalid BIOS-FW function call
 87h	invalid system configuration
 88h	config utility version not supported
--------X-15D801-----------------------------
INT 15 - EISA SYSTEM ROM - READ FUNCTION CONFIGURATION INFORMATION
	AX = D801h
	CH = function number to read
	CL = slot number (including embedded and virtual)
	DS:SI -> 320-byte buffer for standard configuration data block
Return: CF clear if successful
	    AH = 00h
	    DS:SI buffer filled
	CF set on error
	    AH = error code (80h-83h,86h,87h) (see #0410)
	BX destroyed
Note:	call with AL=81h if using 32-bit CS addressing mode instead of 16-bit
--------X-15D802-----------------------------
INT 15 - EISA SYSTEM ROM - CLEAR NONVOLATILE MEMORY (EISA CMOS)
	AX = D802h
	BH = EISA config utility major revision level
	BL = EISA config utility minor revision level
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (84h,86h,88h) (see #0410)
Note:	call with AL=82h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D803h
--------X-15D803-----------------------------
INT 15 - EISA SYSTEM ROM - WRITE NONVOLATILE MEMORY
	AX = D803h
	CX = length of data structure (0000h = empty slot)
		includes two bytes for config file checksum
	DS:SI -> configuration data
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (84h-86h) (see #0410)
Note:	call with AL=83h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D802h
--------X-15D804-----------------------------
INT 15 - EISA SYSTEM ROM - READ PHYSICAL SLOT
	AX = D804h
	CL = slot number (including embedded and virtual)
Return: CF clear if successful
	    AH = 00h
	CF set on error
	    AH = error code (80h,83h,86h) (see #0410)
	SI:DI = 4-byte compressed ID (DI = bytes 0&1, SI = bytes 2&3)
Note:	call with AL=84h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D800h
--------b-15D820-----------------------------
INT 15 - Compaq LTE Lite - GET ???
	AX = D820h
	DS:SI -> 17-byte buffer for ???
Return: DS:SI buffer filled (first byte is length of remaining data, unless
	  it is greater than 10h, in which case the second byte is 00h and no
	  other data is returned)
Note:	this function is also supported by Compaq's EISA System ROM, Contura
	  486/486c/486cx and recent DESKPRO/i ROMs
SeeAlso: AX=D821h
--------b-15D821-----------------------------
INT 15 - Compaq LTE Lite - SET ???
	AX = D821h
	DS:SI -> counted string (should not be more than 16 bytes)
Return: AH = 00h
Note:	this function is also supported by Compaq's EISA System ROM, Contura
	  486/486c/486cx and recent DESKPRO/i ROMs
SeeAlso: AX=D820h
--------b-15D822BL00-------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - GET ???
	AX = D822h
	BL = 00h
	CX = size of buffer or 0000h to retrieve required buffer size
	DS:SI -> buffer for ??? (if CX nonzero)
Return: CF clear if successful
	    AH = 00h
	    DH = 08h
		 CX = required buffer size to retrieve all data (if CX=0 on entry)
	    DS:SI buffer filled (if CX nonzero on entry)
	CF set on error (BL nonzero)
	    AH = 86h
--------b-15D823-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
	AX = D823h
	BL = subfunction??? (00h or 80h)
	BH = ???
	DS:SI -> buffer for ??? (see #0411)
Return: CF clear if successful
	    AH = 00h
	    DH = 08h
	    DL = ???
	CF set on error
	    AH = error code
		86h BL neither 00h nor 80h
		87h ???

Format of Compaq EISA buffer:
Offset	Size	Description	(Table 0411)
 00h	BYTE	???
 01h	WORD	???
 03h	BYTE	???
 04h	WORD	???
 06h	WORD	???
	???
----------15D824-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
	AX = D824h
	CX = ???
	DS:SI -> ASCIZ string containing ???
Return: CF clear if successful
	    AH = 00h
	    CX = ???
	CF set on error
	    AH = error code
		87h ??? failed
		88h ???
Note:	these functions are only available if ??? from keyboard controller
	  command C0h
----------15D825-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
	AX = D825h
	CX = ???
	SI = ???
	DI = ???
	???
Return: CF clear if successful
	    AH = 00h
	    CX = ???
	CF set on error
	    AH = error code
		87h ??? failed
		88h ???
		    CX = ???
Note:	these functions are only available if ??? from keyboard controller
	  command C0h
----------15D826-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
	AX = D826h
	BX = ???
	CX = size of buffer in bytes
	DS:SI -> buffer for ???
	???
Return: CF clear if successful
	    AH = 00h
	    CX = ???
	CF set on error
		 AH = error code
		87h ??? failed
		88h ???
Note:	these functions are only available if ??? from keyboard controller
	  command C0h
--------X-15D8-------------------------------
INT 15 - EISA SYSTEM ROM - 32-bit CS ADDRESSING MODE CALLS
	AH = D8h
	AL = 80h to 84h
	other registers as appropriate for AL=00h to 04h
Return: as appropriate for AL=00h to 04h
Note:	these functions are identical to AX=D800h to D804h, except that they
	  should be called when using 32-bit CS addressing mode (pointers use
	  ESI rather than SI as offset) instead of 16-bit addressing mode
SeeAlso: AX=D800h,AX=D801h,AX=D802h,AX=D803h,AX=D804h
--------b-15D8-------------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - 32-bit CS ADDRESSING MODE CALLS
	AH = D8h
	AL = A0h to A6h
	other registers as appropriate for AL=20h to 26h
Return: as appropriate for AL=20h to 26h
Note:	these functions are identical to AX=D820h to D826h, except that they
	  should be called when using 32-bit CS addressing mode
----------15DA-------------------------------
INT 15 U - AMI PCI BIOS v1.00.05.AX1 - ???
	AH = DAh
	AL = function (00h-08h,12h,14h,15h,19h,88h-8Eh,92h,99h)
	???
Return: ???
SeeAlso: AH=DBh
----------15DB-------------------------------
INT 15 U - AMI PCI BIOS v1.00.05.AX1 - ???
	AH = DBh
	AL = function (00h-04h)
	???
Return: ???
SeeAlso: AH=DAh
--------Q-15DE00-----------------------------
INT 15 - DESQview - GET PROGRAM NAME
	AX = DE00h
Return: AX = offset into DESQVIEW.DVO of program most recently selected from
		the "Switch Windows" menu (see #0412)
Note:	always returns AX=0000h under DESQview/X
SeeAlso: AX=DE07h

Format of program entry in DESQVIEW.DVO:
Offset	Size	Description	(Table 0412)
 00h	BYTE	length of name (FFh if end of file)
 01h  N BYTEs	name
      2 BYTEs	keys to invoke program (second = 00h if only one key used)
	BYTE	program type
		00h normal program
		04h divider
		80h Delete a Program
		81h Change a Program
	WORD	??? apparently always 0000h
--------Q-15DE01-----------------------------
INT 15 - DESQview - UPDATE "OPEN WINDOW" MENU
	AX = DE01h
Return: nothing
Notes:	reads DESQVIEW.DVO, disables Open menu if file not in current directory
	NOP for DESQview/X
--------Q-15DE02-----------------------------
INT 15 - DESQview 1.x only - SET ??? FLAG FOR CURRENT WINDOW
	AX = DE02h
Return: nothing
Note:	this call is a NOP in DV 2.x
SeeAlso: AX=DE03h
--------Q-15DE03-----------------------------
INT 15 - DESQview 1.x only - GET ??? FOR CURRENT WINDOW
	AX = DE03h
Return: AX = ??? for current window
	BX = ??? for current window
Note:	this call is a NOP in DV 2.x
SeeAlso: AX=DE02h
--------Q-15DE04-----------------------------
INT 15 - DESQview - GET AVAILABLE COMMON MEMORY
	AX = DE04h
Return: BX = bytes of common memory available
	CX = largest block available
	DX = total common memory in bytes
SeeAlso: AX=DE05h,AX=DE06h
--------Q-15DE05-----------------------------
INT 15 - DESQview - GET AVAILABLE CONVENTIONAL MEMORY
	AX = DE05h
Return: BX = KB of memory available
	CX = largest block available
	DX = total conventional memory in KB
SeeAlso: AX=DE04h,AX=DE06h
--------Q-15DE06-----------------------------
INT 15 - DESQview - GET AVAILABLE EXPANDED MEMORY
	AX = DE06h
Return: BX = KB of expanded memory available
	CX = largest block available
	DX = total expanded memory in KB
SeeAlso: AX=DE04h,AX=DE05h
--------Q-15DE07-----------------------------
INT 15 - DESQview - "APPNUM" - GET CURRENT PROGRAM'S NUMBER
	AX = DE07h
Return: AX = number of program as it appears on the "Switch Windows" menu
Note:	this API call may be made from a hardware interrupt handler
SeeAlso: AX=DE00h
--------Q-15DE08-----------------------------
INT 15 - DESQview - GET ???
	AX = DE08h
Return: AX = 0000h if ??? is not set to the current task
	     0001h if ??? is set to the current task
--------Q-15DE09-----------------------------
INT 15 - DESQview - UNIMPLEMENTED
	AX = DE09h
Return: nothing (NOP in DV 1.x and 2.x)
--------Q-15DE0A-----------------------------
INT 15 - DESQview v2.00+ - "DBGPOKE" - DISPLAY CHARACTER ON STATUS LINE
	AX = DE0Ah
	BL = character
Return: character displayed, next call will display in next position (which
	wraps back to the start of the line if off the right edge of screen)
Notes:	displays character on bottom line of *physical* screen, regardless
	  of current size of window (even entirely hidden)
	does not know about graphics display modes, just pokes the characters
	  into display memory
	this API call may be made from a hardware interrupt handler
SeeAlso: AX=1003h
--------Q-15DE0B-----------------------------
INT 15 - DESQview v2.00+ - "APILEVEL" - DEFINE MINIMUM API LEVEL REQUIRED
	AX = DE0Bh
	BL = API level minor version number
	BH = API level major version number
Return: AX = maximum API level (AH = major, AL = minor)
Notes:	if the requested API level is greater than the version of DESQview, a
	  "You need a newer version" error window is popped up
	the API level defaults to 1.00, and is inherited by child tasks
--------Q-15DE0C-----------------------------
INT 15 - DESQview v2.00+ - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
	AX = DE0Ch
	BX = number of bytes
Return: ES:DI -> allocated block or 0000h:0000h (DV 2.26+)
Note:	use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
	  system memory
SeeAlso: AX=1001h,AX=102Eh,AX=DE0Dh,AX=DE15h,AX=DE19h
--------Q-15DE0D-----------------------------
INT 15 - DESQview v2.00+ - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
	AX = DE0Dh
	ES:DI -> previously allocated block
Return: nothing
SeeAlso: AX=1002h,AX=DE0Ch
--------Q-15DE0E-----------------------------
INT 15 - DESQview v2.00+ - "FINDMAIL" - FIND MAILBOX BY NAME
	AX = DE0Eh
	ES:DI -> name to find (see #0413)
	CX = length of name
Return: BX = 0000h not found
	     0001h found
		DS:SI = object handle
SeeAlso: AH=12h/BH=11h,AH=12h/BX=1200h"GETNAME"

(Table 0413)
Values for special DESQview mailbox names:
 "COM1" ... "COM4"	RBcomm using COM1 ... COM4
 "DESQview/X Help Engine"
 "DESQview/X Network Server"  Network Manager
 "DESQview X Server0"	X-Windows server
 "DESQview X Server7"	X-Windows printing service
 "INBOX"		DESQview/X LPD requests
 "OUTBOX"		DESQview/X LPD responses
 "WAITBOX"		semaphore to synchronize DESQview/X LPD communications
 "_DVNM_"		DV/X v1.10 network manager
--------Q-15DE0F-----------------------------
INT 15 - DESQview v2.00+ - ENABLE DESQview EXTENSIONS
	AX = DE0Fh
Return: AX and BX destroyed (seems to be bug, weren't saved&restored)
Notes:	sends a manager stream with opcodes AEh, BDh, and BFh to task's window
	enables an additional mouse mode
--------Q-15DE10-----------------------------
INT 15 - DESQview v2.00+ - "PUSHKEY" - PUT KEY INTO KEYBOARD INPUT STREAM
	AX = DE10h
	BH = scan code
	BL = character
Return: nothing
Notes:	a later read will get the keystroke as if it had been typed by the user
	multiple pushes are read last-in first-out
	if a script exists for the pushed key in the current application, the
	  script will be executed
	early copies of DV 2.00 destroy AX, BX, ES, and DI
SeeAlso: INT 16/AH=05h
--------Q-15DE11BL00-------------------------
INT 15 - DESQview v2.00+ - "JUSTIFY" - EN/DISABLE AUTOM. WINDOW JUSTIFICATION
	AX = DE11h
	BL = 00h      viewport will not move automatically
	     nonzero  viewport will move to keep cursor visible (default)
Return: nothing
--------Q-15DE12BX0000-----------------------
INT 15 - DESQview v2.01+ - "CSTYLE" - SET "C"-COMPATIBLE CONTROL CHAR INTERPRET
	AX = DE12h
	BX = 0000h    select normal style (linefeed only moves down)
	     nonzero  select C style (linefeed moves to start of next line)
Return: nothing
Note:	set on a per-task basis, and inherited from the parent task
--------Q-15DE13-----------------------------
INT 15 - DESQview v2.20+ - "GETCRIT" - GET CRITICAL NESTING COUNT
	AX = DE13h
Return: BX = number of calls to BEGINC or ENTERC
	      (see INT 15/AX=101Bh,INT 15/AX=DE1Ch) without matching ENDC
	      (see INT 15/AX=101Ch)
Note:	this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=101Ch,AX=DE1Bh,AX=DE1Ch
--------Q-15DE14-----------------------------
INT 15 - DESQview v2.20+ - GET OBJECT TYPE
	AX = DE14h
	ES:DI -> object
Return: BL = 00h not an object
	     08h window or task
	     09h mailbox
	     0Ah keyboard
	     0Bh timer
	     0Ch objectq
	     0Fh pointer
	     10h panel
SeeAlso: AX=1016h
--------Q-15DE15-----------------------------
INT 15 - DESQview v2.20+ - SET ERROR HANDLING
	AX = DE15h
	BL = error handling mode
	    00h post system error on all error conditions
	    01h return carry flag set on calls to ADDTO, SUBFROM, and WRITE
		messages sent to mailboxes which fail due to lack of system
		or common memory
	    02h (v2.26+) same as 01h, but also return null pointer for GETMEM
		calls which fail due to lack of system memory
Return: nothing
SeeAlso: AX=DE0Ch,AX=DE16h
--------Q-15DE16-----------------------------
INT 15 - DESQview v2.20+ - GET ERROR HANDLING
	AX = DE16h
Return: BL = current mode
	    00h always post system error
	    01h return carry flag set on failed mailbox writes
	    02h return CF set on failed mailbox writes and NULL on failed
		GETMEM calls
SeeAlso: AX=DE15h
--------Q-15DE17-----------------------------
INT 15 - DESQview v2.20-2.25 - reserved
	AX = DE17h
Return: pops up "Programming error" window
Note:	AX = 1117h is NOT identical to this call under DESQview 2.20 thru 2.25
SeeAlso: AX=1117h
--------Q-15DE17-----------------------------
INT 15 - DESQview v2.26+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
	AX = DE17h
	BX = function
	    0000h   get current mapping context without setting
	    nonzero set new mapping context to BX
Return: BX = mapping context in effect before call
Notes:	mapping contexts determine conventional-memory addressability; setting
	  a mapping context ensures that the associated program and data areas
	  are in memory for access.  Usable by drivers, TSRs and shared
	  programs.
	caller need not be running under DESQview
	this API call may be made from a hardware interrupt handler
SeeAlso: AX=1016h,AX=1117h,AX=DE21h,INT 2F/AX=1685h
--------Q-15DE18-----------------------------
INT 15 - DESQview v2.20+ - internal - ???
	AX = DE18h
	BP = function number
	    high byte must be 10h
	    low byte is function
		00h set ???
		    BL = ???  (00h-10h, video mode???)
		    BH = value to store
		03h set ???
		    BL = ??? (stored in driver)
		0Ah get ???
		    ES:DI -> 18-byte buffer to hold ???
Note:	calls video driver (NOP for Hercules driver,probably CGA and MCGA also)
--------Q-15DE19-----------------------------
INT 15 - DESQview v2.23+ - "GETCOMMON" - ALLOCATE "COMMON" MEMORY
	AX = DE19h
	BX = number of bytes to allocate
Return: AX = 0000h successful
		ES:DI -> allocated block
	     nonzero insufficient memory
Note:	this API call may be made from within a hardware interrupt handler
SeeAlso: AX=DE0Ch,AX=DE15h,AX=DE1Ah
--------Q-15DE1A-----------------------------
INT 15 - DESQview v2.23+ - "PUTCOMMON" - DEALLOCATE "COMMON" MEMORY
	AX = DE1Ah
	ES:DI -> previously allocated block
Return:	AX = 0000h (successful)
Note:	this function may be called from within a hardware interrupt handler
SeeAlso: AX=DE0Dh,AX=DE19h
--------Q-15DE1B-----------------------------
INT 15 - DESQview v2.23+ internal - DECREMENT CRITICAL NESTING COUNT
	AX = DE1Bh
Return: nothing
SeeAlso: AX=101Ch,AX=DE13h,AX=DE1Ch
--------Q-15DE1C-----------------------------
INT 15 - DESQview v2.23+ - "ENTERC" - INCREMENT CRITICAL NESTING COUNT
	AX = DE1Ch
Return: nothing
Notes:	similar to AX=101Bh, but begins the critical region without ensuring
	  that DOS is free
	the official documentation states that this call should be paired with
	  "ENDC" (AX=101Ch); no mention is made of AX=DE1Bh
	this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=101Ch,AX=DE13h,AX=DE1Bh
--------Q-15DE1D-----------------------------
INT 15 - DESQview v2.23+ - "PUTKEY" - FAKE USER KEYSTROKES
	AX = DE1Dh
	DX = segment of handle for task to receive keystroke
	BL = character
	BH = scan code
Return: AX = 0000h if successful
	   nonzero if receiver's keyboard buffer was full
Notes:	the key is treated as though the user had pressed it, ignoring any
	  script which may be bound to the key, and using the current field
	  table if the keyboard object is in field processing mode
	multiple PUTKEYs are seen in the order in which they are executed
SeeAlso: AX=DE10h
--------Q-15DE1E-----------------------------
INT 15 - DESQview v2.23+ - "SCRNINFO" - GET TRUE VIDEO PARAMETERS
	AX = DE1Eh
Return: CL = actual number of rows on screen
	CH = actual number of columns on screen
	BL = actual video mode (may differ from INT 10/AH=0Fh return) (v2.26+)
Note:	this API call may be made from a hardware interrupt handler
SeeAlso: INT 10/AH=0Fh
--------Q-15DE1F-----------------------------
INT 15 - DESQview v2.23+ - "DOSUSER" - GET HANDLE OF TASK CURRENTLY USING DOS
	AX = DE1Fh
Return: BX = segment of task handle or 0000h if no tasks are using DOS
Note:	this API call may be made from within a hardware interrupt handler
SeeAlso: AX=DE13h,INT 21/AH=34h
--------Q-15DE20-----------------------------
INT 15 - DESQview v2.26+ - "DISPATCHINT" - INTERRUPT ANOTHER TASK
	AX = DE20h
	BX = segment of handle of task to interupt
	DX:CX -> FAR interrupt routine
	BP,SI,DI,DS,ES as required by interrupt routine
Return: nothing
Notes:	unlike "PGMINT" (AX=1021h), DISPATCHINT may be applied to the task
	  making the DISPATCHINT call
	multiple "DISPATCHINT" calls are processed in the order in which they
	  were executed
	the FAR routine is entered with the current ES, DS, SI, DI, and BP
	  values, using the task's internal stack (see AX=101Ah); only SS:SP
	  needs to be preserved
	this API call may be made from within a hardware interrupt handler
SeeAlso: AX=1021h,AX=DE2Ah
--------Q-15DE21-----------------------------
INT 15 - DESQview v2.26+ - "ASSERTVIR" - CONTROL 386 SCREEN VIRTUALIZATION
	AX = DE21h
	BX = new state
	    0000h turn off
	    nonzero turn on
Return: BX = old state of virtualization
Notes:	this API call may be made from within a hardware interrupt handler
	under DV 2.40 and 2.42, this call appears to have no effect and always
	  returns a nonzero value in BX which appears to be the offset within
	  the DV common memory segment of the caller's task object; it may
	  only have an effect within a hardware interrupt handler
SeeAlso: AX=1117h,AX=DE17h
--------Q-15DE22-----------------------------
INT 15 - DESQview v2.26+ - "PROCESSMEM" - GET TASK MEMORY STATUS
	AX = DE22h
	DX = segment of task handle
Return: DX = total amount of memory in paragraphs
	BX = amount of system memory in paragraphs
	CX = largest block of system memory available in paragraphs
	AX = memory flags (see #0414)
Notes:	if the task handle is a child task, the returned values will be for the
	  process containing the task, rather than the task itself
	if the process's system memory is swapped out, BX,CX,DX remain
	  unchanged, because the memory usage cannot be determined
SeeAlso: AX=DE04h,AX=DE05h,AX=DE06h

Bitfields for DESQview process memory flags:
Bit(s)	Description	(Table 0414)
 0	system memory resides in shared memory
 1	process's memory is swapped out
 2	process's system memory is swapped out
--------Q-15DE23-----------------------------
INT 15 U - DESQview v2.31+ - ???
	AX = DE23h
	BX = ??? IRQ number on first PIC?
	CX = ??? IRQ number on second PIC?
Return: ???
Note:	called by QEMM 6.00+
--------Q-15DE24-----------------------------
INT 15 - DESQview v2.40+ - "XNEWPROC" - START NEW APPLICATION
	AX = DE24h
	BX = length of .DVP data
	CX = length of ??? string
	DS:SI -> ??? string
	ES:DI -> .DVP data (see #0317 at AX=102Ch)
Return: BX = segment of task handle??? or 0000h on error
Note:	this call is similar to AX=102Ch except that it can interpret the
	  extended DVP data
SeeAlso: AX=102Ch
--------Q-15DE25-----------------------------
INT 15 - DESQview v2.40+ - "GETDVPATH" - GET DESQview DIRECTORY
	AX = DE25h
	ES:DI -> 67-byte buffer for ASCIZ directory name
Return: ES:DI buffer filled with directory from which DESQview was started
BUG:	DV 2.42 does not place a terminating NUL at the end of the directory
	  name, so if the buffer is not cleared to zeros before the call,
	  there is no way to tell where the directory name ends.  This bug
	  has been fixed in DV 2.52 (DV/X 1.02)
SeeAlso: AX=DE2Eh,INT 21/AH=47h
--------Q-15DE26-----------------------------
INT 15 - DESQview v2.40+ - "GETFOREGROUND" - GET KEYBOARD FOCUS
	AX = DE26h
Return: BX = segment of handle for task with keyboard focus
Note:	under DESQview/X, the X server always has the keyboard focus unless a
	  "direct" window is active
SeeAlso: AX=DE2Fh,INT 2F/AX=DE0Ah
--------Q-15DE27-----------------------------
INT 15 - DESQview v2.50+ - "ADDINSTANCEDATA" - ADD PER-TASK SAVE/RESTORE AREA
	AX = DE27h
	BX = type
	    0000h process
	    0001h task
	ES:DI -> list of Instance Item Structures (see #0415)
Return: CF clear if successful
	    AX = ???
	    BX = ???
	CF set on error
	    AX = error code???
		0004h invalid BX value
Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
SeeAlso: INT 2F/AX=DE08h,INT 2F/AX=DE09h

Format of DESQview Instance Item Structure [one element of list]:
Offset	Size	Description	(Table 0415)
 00h	WORD	length of data area DESQview should save and restore on context
		  switches (0000h = end of list)
 02h	DWORD	pointer to area to be saved/restored
--------Q-15DE28-----------------------------
INT 15 U - DESQview v2.50+ - ???
	AX = DE28h
	BX = segment of ??? or 0000h for default
	???
Return: ???
Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
SeeAlso: AX=DE2Ah
--------Q-15DE29BX0000-----------------------
INT 15 U - DESQview/X - ???
	AX = DE29h
	BX = 0000h
	???
Return: CF clear if successful
	    ???
	CF set on error
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	under DESQview 2.60, this function and all other subfunctions of
	  AX=DE29h always return CF set, as they are unique to DESQview/X
--------Q-15DE29BX0001-----------------------
INT 15 U - DESQview/X - ???
	AX = DE29h
	BX = 0001h
	DX = segment of window handle
Return: CF clear if successful
	    AX = ???
	    DX = ???
	CF set on error
Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
--------Q-15DE29BX0002-----------------------
INT 15 U - DESQview/X - ???
	AX = DE29h
	BX = 0002h
	DX = segment of window handle
Return: CF clear if successful
	    AX = ???
	    DX = ???
	CF set on error
Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
--------Q-15DE29BX0003-----------------------
INT 15 U - DESQview/X - ???
	AX = DE29h
	BX = 0003h
	DX = segment of window handle
Return: CF clear if successful
	    ???
	CF set on error
Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
--------Q-15DE29BX0004-----------------------
INT 15 U - DESQview/X - GET DISPLAY NAME
	AX = DE29h
	BX = 0004h
	CX = size of buffer in bytes
	DX = segment of window handle
	ES:DI -> buffer for display name
Return: CF clear if successful
	    buffer filled with ASCIZ display name (truncated if necessary) or
	      null string if no display
	CF set on error
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	the name ":0" refers to the local display
--------Q-15DE29BX0005-----------------------
INT 15 U - DESQview/X - ???
	AX = DE29h
	BX = 0005h
	???
Return: CF clear if successful
	    ???
	CF set on error
Note:	under DESQview 2.60, this function and all other subfunctions of
	  AX=DE29h always return CF set, as they are unique to DESQview/X
--------Q-15DE2A-----------------------------
INT 15 - DESQview v2.50+ - "DISPATCHINTAFTERDOS" - INTERRUPT ANOTHER TASK
	AX = DE2Ah
	BX = segment of handle for task to interrupt or 0000h for caller
	DX:CX -> interrupt routine
	BP,SI,DI,DS,ES as required by interrupt routine
Return: nothing
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	this call is the same as AX=DE20h except that it will delay
	  interrupting the specified task until after it has exited DOS
SeeAlso: AX=1021h,AX=DE20h
--------Q-15DE2B-----------------------------
INT 15 - DESQview v2.50+ - "OBJNEXT" - TRAVERSE OBJECT LIST
	AX = DE2Bh
	ES:DI -> starting object
		0000h:0000h for first object in list???
Return: AX = status
	    0000h successful
		ES:DI -> next object of same type (window/non-window)
	    0001h failed (ES:DI was not a valid handle)
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	there are two separate lists, one for window/task objects and one
	  for all other objects
SeeAlso: AX=1016h,AX=DE2Ah,AX=DE2Ch
--------Q-15DE2C-----------------------------
INT 15 - DESQview v2.50+ - "WININFO" - GET WINDOW INFORMATION
	AX = DE2Ch
	DX = window information format version (0100h for DESQview 2.5x)
	BX = segment of window handle or 0000h for default
	ES:DI -> buffer for window information (see #0416)
Return: AX = status
	    0000h successful
Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
SeeAlso: AX=1000h,AX=1016h,AX=DE01h,AX=DE2Bh

Format of DESQview window information:
Offset	Size	Description	(Table 0416)
 00h	BYTE	task flag: 00h window, 01h task
 01h	BYTE	process number if owner task
		00h if non-owner task
 02h	WORD	segment of owner's handle, 0000h if orphaned
 04h	WORD	mapping context (see #0306 at AX=1016h)
 06h	BYTE	task status (see #0417)
 07h	BYTE	unused
 08h	WORD	status bits (see #0418)
 0Ah	BYTE	01h if foreground-only window

(Table 0417)
Values for DESQview task status:
 00h	"Waiting" waiting for input
 01h	"Idle" keyboard poll limit reached
 03h	same as 01h
 04h	"Pausing" INT 15/AX=1000h pause called
 04h	DV/X direct: user did something to allow task switch
 05h	"ModeChg" video mode about to be changed
 06h	"ModeNtf" notify that video mode changed
 07h	"MoniCh" requested change to other monitor
 08h	"StartPgm" control relinquished to start new process
 09h	"MgrCan" made window manager CANCEL command
 0Ah	"Slicing" time slice expired
 0Bh	"Exit DOS" notify on DOS calls
 0Ch	"Enter DOS" process is re-entering DOS
 0Dh	"Terminate" INT 21/AH=4Ch or task freed
 0Eh	"BrkNxt" Control-Break pressed
 0Fh	"MgrCol" keyboard focus taken away
 10h	"PgmInt" interrupted by API call from another task
 11h	"BldOpen" call to INT 15/AX=DE01h

Bitfields for DESQview task status bits:
Bit(s)	Description	(Table 0418)
 6	task is freeing another task
 5	process is being created
 4	user suspended process
 3	process suspended itself
 2	process is resized direct window (suspended)
 1	process swapped out
 0	DESQview process
--------Q-15DE2D-----------------------------
INT 15 U - DESQview v2.50+ - GET/SET SOCKET HANDLER
	AX = DE2Dh
	CX = direction
	    FFFFh set socket handler
		DX:BX -> FAR function for socket interface
			must be of the format described under INT 63"DESQview"
			  at #2121
	    other get socket handler
		Return: DX:BX -> socket handler (see #2121)
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	the "set" subfunction is normally called only by SOCKET.DVR
SeeAlso: AX=DE2Eh,INT 63"DESQview",#2121
--------Q-15DE2E-----------------------------
INT 15 U - DESQview v2.50+ - SOCKET API
	AX = DE2Eh
	DX:BX -> socket record (see #0420)
		0000h:0000h to create a new socket record
Return: CX = size of socket record in bytes
	DX:BX -> socket record which was used
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	socket records are allocated from common memory
	for Unix compatibility, each socket and connection on a socket is
	  allocated a DOS file handle (referencing an SFT for NUL) which is
	  used on various calls to specify which of possibly multiple
	  connections is to be operated upon
SeeAlso: AX=DE2Dh,INT 61/AX=0001h/SF=0001h"VINES",INT 63"DESQview"

(Table 0419)
Values for DESQview/X socket API function number:
 0000h	initialize socket???
 0001h	"gethostname"
 0002h	"ioctl" check for input
 0003h	"sleep" delay for specified period
 0004h	"htons" convert word to network (big-endian) byte order
 0005h	"select"
 0006h	"bsd_close"/"so_close" close socket
 0007h	NOP
 0008h	"connect" initiate connection on socket
 0009h	"recv"/"recvfrom" read from socket
 000Ah	"socket"
 000Bh	???
 000Ch	"gethostbyname"
 000Dh	"send"/"sendto" write to socket
 000Eh	??? (does something to all connections for process)
 000Fh	"getpid" get process identifier
 0010h	"gettimeofday"
 0011h	"bind" assign name to socket
 0012h	"listen" listen for connections on socket
 0013h	"accept" accept connection on socket
 0014h	connect to X server
 0015h	"gethostbyaddr" get host information for an address
 0016h	"getprotobyname"
 0017h	"getprotobynumber"
 0018h	"getservbyname"
 0019h	"getservbyport"
 001Ah	"getsockname" determine name bound to socket
 001Bh	"getpeername" get name of connected peer
 001Ch	"getsockopt"/"setsockopt"
 001Dh	"so_exit"	 close all sockets for calling process
 001Eh	"issock" determine whether file handle references socket
 001Fh	"so_attach" reattach previously detached socket
 0020h	"so_detach" temporarily detach socket
 0021h	"dvpath" get DESQview directory (see also AX=DE24h)
 0022h	"NewProc" start new application (see also AX=102Ch)
 0023h	"so_linkup"
 0024h	"CanonicalPath" canonicalize filename (see also INT 21/AH=60h)
 0025h	indirect INT 15h call
 0026h	Network Manager interface
 0027h	"so_unlink"    close connection from "so_linkup"
 0028h	"raisepriority"
 0029h	"lowerpriority"
 002Ah	"so_private" ???
 FFFFh	"NetExit" (appears to be a NOP)

Format of DESQview/X socket record:
Offset	Size	Description	(Table 0420)
 00h	WORD	signature F0ADh
 02h	WORD	function number (see #0419)
 04h	WORD	returned error code (see #0440)
 06h	WORD	maximum message size??? (usually 0400h)
 08h	WORD	PSP segment to use or 0000h if socket not valid
 0Ah	WORD	scratch space (JFT size)
 0Ch	DWORD	scratch space (JFT address)
 10h	DWORD	mailbox handle (initialized by function 0000h)
 14h	DWORD	timer object handle (initialized by function 0000h)
---function 0000h---
 18h	WORD	(ret) ???
---function 0001h---
 18h	WORD	(ret) status???
 1Ah 128 BYTEs	(ret) ASCIZ hostname (empty string if not on network)
 9Ah	WORD	maximum length of hostname to return
---function 0002h---
 18h	WORD	(ret) status
 1Ah	WORD	socket's file handle
 1Ch	WORD	IOCTL function
		05h "FIONREAD" determine available input
		06h "FIONBIO" set blocking state of socket
 1Eh	WORD	(return, subfn 05h) number of bytes available for reading
		(call, subfn 06h) 0000h blocking, nonzero nonblocking
---function 0003h---
 18h  2 BYTEs	unused
 1Ah	WORD	delay time in seconds
---function 0004h---
 18h	WORD	(ret) result in network (big-endian) byte order
 1Ah	WORD	value to convert to network byte order
---function 0005h---
 18h	WORD	(ret) number of handles meeting the specified conditions???
 1Ah	WORD	number of file handles in each bitset
 1Ch	DWORD	bitset of socket handles to check for readability
 20h	DWORD	bitset of socket handles to check for writability
 24h	DWORD	bitset of socket handles to check for errors
 28h	WORD	timeout in ??? or 0000h to block until some socket ready
 2Ah	DWORD	???
 2Eh	DWORD	???
---function 0006h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
---function 0008h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	0001h if socket name specified, 0000h if not
 1Eh	WORD	length of socket name
 20h  N BYTEs	name of socket to which to connect
---function 0009h---
 18h	WORD	(ret) number of bytes actually read, 0000h if connection
			closed, or FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	number of bytes to read
 1Eh	WORD	flags
 20h	WORD	0000h if no source address desired
		0001h if source address is to be stored (datagram sockets)
 22h	WORD	length of source address
 24h 110 BYTEs	source address
 92h 1K BYTEs	buffer for data to be read
---function 000Ah---
 18h	WORD	(ret) socket's file handle or FFFFh on error
 1Ah	WORD	address family (0001h,0002h)
 1Ch	WORD	socket type
 1Eh	WORD	protocol
---function 000Bh---
 18h	WORD	(ret) 0001h if ??? or FFFFh on error
 1Ah	WORD	socket's file handle
 1Eh	WORD	(call) ???
---function 000Ch---
 18h 128 BYTEs	ASCIZ hostname (special case if empty string or "unix")
 98h	???	(ret) packed 'hostent' structure
 A2h	???	(ret) ???
---function 000Dh---
 18h	WORD	(ret) number of bytes actually written or FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	number of bytes to write
 1Eh	WORD	number of bytes to follow in subsequent writes???
 20h	WORD	flags
 22h	WORD	0000h if no destination specified, 0001h if destination present
 24h	WORD	0001h if broadcast message???, 0000h if not
		(ignored if no destination specified)
 26h	WORD	length of destination address
 28h 110 BYTEs	destination address
 96h 1K BYTEs	buffer containing data to be written
---function 000Eh---
 no additional fields
---function 000Fh---
 18h	DWORD	(ret) DESQview task handle of calling process
---function 0010h---
 18h	DWORD	(ret) current time
 1Ch	DWORD	(ret) ???
---function 0011h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	length of name
 1Eh  N BYTEs	buffer for socket name
---function 0012h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	maximum backlog of pending connections allowed on socket
---function 0013h---
 18h	WORD	(ret) file handle for new connection or FFFFh on error
 1Ah	WORD	listen()ing socket's file handle
 1Ch	WORD	(call) length of buffer for connecting entity's address
		(ret) actual length of address
 1Eh  N BYTEs	buffer for connecting entity's address (110 bytes???)
---function 0014h---
 18h	WORD	(ret) socket's file handle or FFFFh on error
 1Ah  4 BYTEs	(ret) ???
 1Eh	WORD	(ret) ???
 20h	WORD	(ret) ???
 22h 256 BYTEs	ASCIZ X display name
122h	???
---function 0015h---
 18h	WORD	(call) type of address??? (test for 0001h seen)
 1Ah	WORD	(call) length of buffer for host address
 1Ch 110 BYTEs	buffer containing ASCIZ host address
 8Ah	WORD	(ret) offset of official host name
 8Ch	WORD	(ret) offset of alias list???
 8Eh	WORD	(ret) address type???
 90h	WORD	(ret) length of an address in bytes???
 92h	WORD	(ret) offset of address???
 9Ah  N BYTEs	(ret) buffer for hostname, alias list, and host address
---function 0016h---
 18h	???	buffer for ASCIZ protocol name
 98h	???
---function 0017h---
 18h	WORD	(call) protocol number
 1Ah	WORD	(ret) ??? or 0001h
---function 0018h---
 18h 128 BYTEs	buffer containing ASCIZ ???
 98h 128 BYTEs	buffer containing ASCIZ ???
118h	WORD	(ret) ???
---function 0019h---
 18h	WORD	port number
 1Ah 128 BYTEs	(call) ASCIZ host name
		(ret) packed servent strctures???
 9Ah	WORD	(ret) ???
---function 001Ah---
 18h	WORD	(ret) 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	(call) length of buffer for socket name
		(ret) actual length of socket name
 1Eh  N BYTEs	buffer for socket name
---function 001Bh---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	WORD	(call) size of buffer for name
		(ret) actual size of name
 1Eh  N BYTEs	buffer for peer's name
---function 001Ch---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	direction: 0000h to get, 0001h to set
 1Ch	WORD	socket's file handle
 1Eh	WORD	option level
 20h	WORD	option name
 22h	WORD	(call) length of buffer for option value
		(ret) actual length of option value
 24h  N BYTEs	buffer for option value
---function 001Dh---
 no additional fields
---function 001Eh---
 18h	WORD	(ret) status: 0000h ??? or 0001h ???
 1Ah	WORD	file handle which may or may not be a socket
---function 001Fh---
 18h	WORD	(ret) file handle or FFFFh on error
 1Ah	DWORD	(call) pointer to Socket Context Record (see #0441) of a
			previously detached socket
---function 0020h---
 18h	WORD	(ret) status: 0000h if successful or FFFFh on error
 1Ah	WORD	socket's file handle
 1Ch	DWORD	(ret) pointer to Socket Context Record (see #0441) for
			the file handle
---function 0021h---
 18h 64 BYTEs	buffer for DESQview startup directory (see AX=DE25h)
---function 0022h---
 18h	DWORD	(ret) task handle of new application
 1Ch	WORD	size of .DVP data
 1Eh 129 BYTEs	ASCIZ ???
 9Fh  N BYTEs	.DVP data (see #0317 at AX=102Ch)
---function 0023h---
 18h	WORD	(ret) ??? or FFFFh on error
 1Ah	WORD	socket's file handle???
---function 0024h---
 18h	WORD	(ret) DOS error code (see #0885 at INT 21/AH=59h)
			0000h if successful
 1Ah 129 BYTEs	ASCIZ filename/pathname
11Bh 129 BYTEs	ASCIZ canonicalized filename/pathname (see INT 21/AH=60h)
---function 0025h---
 18h	WORD	value of AX
 1Ah	WORD	value of BX
 1Ch	WORD	(call) value of CX for call if AH value other than 12h
		(call) number of stack parameters if AH value is 12h
		(ret) returned CX for calls other than INT 15/AH=12h
 1Eh	WORD	value of DX
 20h	WORD	value of DI
 22h	WORD	value of SI
 24h	WORD	value of DS
 26h	WORD	value of ES
 28h	WORD	(ret) value of FLAGS after call
 2Ah  N DWORDs	(call) stack parameters for INT 15/AH=12h call
		(ret) stack results from INT 15/AH=12h call
---function 0026h---
 18h	WORD	(call) Network Manager subfunction (see #0421)
		(ret) status??? (0000h on error)
 1Ah	WORD	(call) size of parameter data
		(ret) size of returned data
 1Ch  N BYTEs	(call) parameter data required by call (see #0422,#0423,#0439)
		(ret) result data (see #0432,#0433,#0438)
---function 0027h---
 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
 1Ah	WORD	socket's file handle
---functions 0028h,0029h---
 18h	WORD	(call) file handle for which to set priority low/high
			FFFFh to change calling task's priority
---function 002Ah---
 no additional fields

(Table 0421)
Values for DESQview/X Network Manager subfunction:
 0004h	"so_exit"???
 0005h	"gethostbyname"
 0006h	"gethostname"
 0009h	"socket"
 000Dh	"gethostbyaddr"
 000Fh	"getprotobyname"
 0010h	get protocol name for protocol number
 0011h	"getservbyname"
 0012h	"getservbyport" (see #0425)
 0013h	"getsockname"??? (see #0426)
 0016h	"shutdown" (see #0427)
 0017h	kill Network Manager
 0018h	"getpeername"??? (see #0428)
 0019h	??? (called by socket function 0000h) (see #0429)
 001Ah	??? (see #0430)
 001Bh	"so_linkup" (see #0431)
 001Dh	"getnetstatus" get network services (see #0432)
 001Fh	"getpwuid"
 0020h	"getpwnam"
 0021h	"getpwvar"
 0022h	"crypt"
 0023h	"so_unlink"
 0024h	"getlogin" (see #0433)
 0028h	"sethostent"
 0029h	"gethostent"
 002Ah	"soaddhost"
 002Bh	"soupdatehost"
 002Ch	"sodeletehost"
 002Dh	"setservent"
 002Eh	"getservent"
 002Fh	"setpwent"
 0030h	"getpwent" (see #0434)
 0031h	"sethostpath" (see #0435)
 0032h	"endservent"
 0033h	"endhostent"
 0034h	"getnettype" get IP network number (see #0436)
 0035h	??? (pops up Network Manager window)
 0037h	"getnettimeout" (see #0437)
 0038h	get machine name and IP address (see #0438)
 0039h	"getuid" (see #0439)
---DV/X v2.0+ ---
 0041h	"deletepwnam"
 0045h	"renamepw"

Format of Function 0026h/Subfunction 000Fh data:
Offset	Size	Description	(Table 0422)
 00h  8 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 0010h data:
Offset	Size	Description	(Table 0423)
 00h  2 BYTEs	(ret) ???
 02h	WORD	(ret) protocol number
 04h	WORD	(call) protocol number for which to get name
 06h	WORD	(ret) ???
 08h	var	(ret) ASCIZ protocol name
 N	var	(ret) ASCIZ protocol name

Format of Function 0026h/Subfunction 0011h data:
Offset	Size	Description	(Table 0424)
 00h  8 BYTEs	???
 08h	var	(ret) ASCIZ protocol name
	var	(ret) ASCIZ ??? name
	var	(ret) ASCIZ ??? name

Format of Function 0026h/Subfunction 0012h data:
Offset	Size	Description	(Table 0425)
 00h  8 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 0013h data:
Offset	Size	Description	(Table 0426)
 00h 116 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 0016h ("shutdown") data:
Offset	Size	Description	(Table 0427)
 00h	WORD	(ret) shutdown status (0000h successful, FFFFh error)
 02h  4 BYTEs	(ret) ???
 04h	WORD	(call) socket handle
 06*h	WORD	(call) what (0 = receives, 1 = sends, 2 = both)

Format of Function 0026h/Subfunction 0018h data:
Offset	Size	Description	(Table 0428)
 00h 116 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 0019h data:
Offset	Size	Description	(Table 0429)
 00h  4 BYTEs	(ret) ???
 04h	DWORD	(ret) task handle of ???

Format of Function 0026h/Subfunction 001Ah data:
Offset	Size	Description	(Table 0430)
 00h 38 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 001Bh data:
Offset	Size	Description	(Table 0431)
 00h 10 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 001Dh return data [array]:
Offset	Size	Description	(Table 0432)
 00h	WORD	??? or FFFFh if end of array
 02h  7 BYTEs	???
 09h 27 BYTEs	ASCIZ name of service

Format of Function 0026h/Subfunction 0024h return data:
Offset	Size	Description	(Table 0433)
 00h	var	ASCIZ username

Format of Function 0026h/Subfunction 0030h data:
Offset	Size	Description	(Table 0434)
 00h	WORD	(call) UID or 0000h for current user
		(ret) ???
 02h	WORD	(ret) UID
 04h  6 BYTEs	(ret) ???
 0Ah	var	(ret) ASCIZ username
	var	(ret) ASCIZ encrypted password
	var	(ret) ASCIZ initial ("home") directory

Format of Function 0026h/Subfunction 0031h ("sethostpath") data:
Offset	Size	Description	(Table 0435)
 00h   4 BYTEs	???
 04h 144 BYTEs	ASCIZ ???

Format of Function 0026h/Subfunction 0034h data:
Offset	Size	Description	(Table 0436)
 00h  1-3 BYTEs IP network number of caller's machine (low byte first)

Format of Function 0026h/Subfunction 0037h ("getnettimeout") return data:
Offset	Size	Description	(Table 0437)
 00h	WORD	(ret) timeout
 02h  2 BYTEs	(ret) ???

Format of Function 0026h/Subfunction 0038h return data:
Offset	Size	Description	(Table 0438)
 00h	BYTE	???
 01h  4 BYTEs	IP address
 05h	var	ASCIZ machine name
	???

Format of Function 0026h/Subfunction 0039h ("getuid") return data:
Offset	Size	Description	(Table 0439)
 00h	WORD	user ID
 02h  2 BYTEs	???
SeeAlso: #0435,#0438

(Table 0440)
Values for DESQview/X socket error code:
 0000h	successful
 0009h	"BADF" bad file handle
 000Ch	"ENOMEM" out of memory
 000Eh	"EFAULT" bad address
 0016h	"EINVAL" invalid argument
 0018h	"EMFILE" too many open files
 0020h	"EPIPE" ??? broken pipe
 0023h	"EWOULDBLOCK" operation cannot be completed at this time
 0024h	"EINPROGRESS" operation now in progress
 0026h	"ENOTSOCK" socket invalid
 0028h	"EMSGSIZE" message too long to send atomically
 002Ch	"ESOCKTNOSUPPORT" socket type not supported
 002Fh	"EAFNOSUPPORT" address family not supp. by protocol fam.
 0031h	"EDOM" argument too large
 0038h	"EISCONN" socket is already connected
 0039h	"ENOTCONN" socket is not connected

Format of DESQview/X Socket Context Record:
Offset	Size	Description	(Table 0441)
 00h	DWORD	pointer to next Socket Context Record, 0000h:0000h if last
 04h	WORD	SFT index for socket, 00FFh if not connected, FFFFh if detached
 06h	WORD	PSP segment of owner or 0000h
 08h	WORD	mapping context of owning window (see #0306 at AX=1016h)
 0Ah  2 BYTEs	???
 0Ch	WORD	address family
 0Eh	WORD	socket type
 10h	WORD	protocol
 12h	WORD	socket state
		0001h created
		0002h bound
		0003h listening???
		0005h connected
 14h	DWORD	timer object handle
 18h	DWORD	object handle (mailbox???)
 1Ch	DWORD	object handle of parent of above object or 0000h:0000h
 20h	DWORD	pointer to ??? or 0000h
 24h  6 BYTEs	???
 2Ah	WORD	file handle for socket or FFFFh
 2Ch  2 BYTEs	???
 2Eh	WORD	nonzero if socket nonblocking
---network connections only---
 30h  2 BYTEs	???
 32h	WORD	???
 34h  4 BYTEs	(big-endian) IP address of remote
 38h  6 BYTEs	???
--------Q-15DE2F-----------------------------
INT 15 - DESQview v2.50+ - "VIDEONOTIFY" - HAS DIRECT WINDOW BEEN ACTIVE?
	AX = DE2Fh
Return: BX = status
	    0001h keyboard focus has been given to a direct window since the
		last call
	    0000h if not
Notes:	DESQview 2.50-2.53 are distributed as part of DESQview/X v1.00-1.10.
	Quarterdeck stated that this call would not be available under future
	  versions of DESQview Classic, but it is still present in v2.60
--------Q-15DE30-----------------------------
INT 15 - DESQview v2.50+ - "GETDVXVERSION" - GET DESQview/X VERSION
	AX = DE30h
Return: BX = version (BH=major, BL=minor) or 0000h if not DESQview/X
Notes:	DESQview 2.50-2.53 are distributed as part of DESQview/X v1.00-1.10.
	you must first check the DESQview version to verify that it is 2.50 or
	  greater
SeeAlso: INT 21/AH=2Bh/CX=4445h
--------Q-15DE31-----------------------------
INT 15 - DESQview/X v1.10 - ???
	AX = DE31h
	CX = ???
	    0000h ???
	    nonzero ???
	???
Return: ???
--------b-15DF-------------------------------
INT 15 - Juko UNIQUE UX BIOS - TURBO MODE CONTROL
	AH = DFh
	AL = function
	    00h turn on Turbo mode
	    01h turn off Turbo mode
	    02h set Turbo mode according to hardware switch
SeeAlso: INT 13/AX=FFFFh
--------b-15E00F-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR DISPATCH
	AX = E00Fh
	ES:BX -> start of 2nd processor's execution
Return: AL = status
	    0Fh successful
	    00h failure
SeeAlso: AX=E10Eh,AX=E200h
--------b-15E10E-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR END-OF-DISPATCH
	AX = E10Eh
	ES:BX -> start of 2nd processor's execution
Return: AL = status
	    0Fh successful (halted)
	    00h failure (not halted)
SeeAlso: AX=E00Fh,AX=E200h
--------b-15E200-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR AVAILABLE
	AX = E200h
Return: AX bit 15 set if 2nd processor available
SeeAlso: AX=E00Fh,AX=E10Eh
--------b-15E4-------------------------------
INT 15 - Tandy??? - ???
	AH = E4h
	AL = subfunction
	    21h, 89h, 8Ah, 8Bh called by 386MAX v6.01
	DL = ???
Return: DL = 00h if successful???
Note:	the section of code in 386MAX which calls these functions also checks
	  whether the ROM BIOS has both Tandy and Phoenix Technologies
	  signatures if these calls fail; the Tandy 1000SL/TL BIOS does not
	  support this function, however, returning the usual CF set/AH=86h for
	  "unsupported function".
--------b-15E4-------------------------------
INT 15 - Compaq ROM BIOS 03/08/93 and newer - ???
	AH = E4h
	AL = subfunction
	    00h get ???
		Return: CF clear
			AH = 00h
			CX = 0000h
			BX = ??? (read from [XBDA:0094h])
	    01h,02h unsupported by this ROM version
		Return: CF set, AH = 86h
	    80h,90h,A0h,B0h,C0h,D0h,E0h,F0h set ???
		Return: CF clear
			AH = 00h
			CX = 0000h
			BX = ???
	    81h,91h,A1h,B1h,C1h,D1h,E1h,F1h unsupported by 3/8/93&4/8/93 ROMs
		Return: CF set, AH = 86h
Notes:	functions 80h/90h/etc. are not supported by the 4/8/93 EISA System ROM
	these functions are not supported by the 7/26/93 LTE Lite 386 ROM
--------b-15E800-----------------------------
INT 15 - Compaq Contura - GET ???
	AX = E800h
Return: AX = 0000h
	BH = 00h
	BL = ??? (read from port 0C7Ch)
	CH = ???
	CL = ???
	DX = 0000h
Note:	also supported by 3/8/93 DESKPRO/i and 7/26/93 LTE Lite 386 ROM BIOS
--------b-15E800-----------------------------
INT 15 - Compaq Contura Aero, Contura 400 - GET SYSTEM MODEL CODE???
	AX = E800h
	BX = ??? (0000h)
Return: CF clear if successful
	    BH = 02h
		 BL = submodel??? (0Ch,0Dh,34h,38h,40h,44h,48h,64h,68h)
	CF set on error
	others???
Notes:	used by Compaq's SOFTPAQ number 0937 EPPBIOS.SYS to determine whether
	  the Enhanced Parallel Port expected by that driver is available
	used by Compaq's SOFTPAW number 0856 VOLCTRL.EXE to determine whether
	  volume control hardware expected by that driver is available
--------b-15E800-----------------------------
INT 15 - Compaq Prolinea - GET ???
	AX = E800h
	BX = ??? (1369h)
Return: BH = 01h
	BL = ???
	others???
Note:	used by Compaq's SOFTPAQ number 0718 INT10_04.SYS to determine whether
	  the fix that driver applies is required (will not install if BX on
	  return is other than 010Eh or 010Fh)
--------b-15E801-----------------------------
INT 15 - Compaq Contura - GET ???
	AX = E801h
Return: CF clear
	AX = extended memory in K (read from CMOS locations 30h and 31h)
	BH = ???
	BL = ???
	CX = extended memory in K (read from CMOS locations 17h and 18h)
	DX = ???
Note:	also supported by 3/8/93 DESKPRO/i and 7/26/93 LTE Lite 386 ROM BIOS
--------b-15E802-----------------------------
INT 15 - Compaq Contura - GET ???
	AX = E802h
Return: CF clear
	AX = 0000h
	BX = ???
	CX = 0000h
Note:	this function is also supported by the LTE Lite 25c, 25E, and 486; not
	  supported by LTE Lite 20 and 25.
--------m-15F200CX454D-----------------------
INT 15 - Tandon memory mapper - Tandon MAPPER HARDWARE INITIALISATION CHECK ???
	AX = F200h
	CX = 454Dh
Return: CF clear if hardware already initialised
	    BX = upper RAM areas in use
		bit 0: C000-C3FF
		bit 1: C400-C7FF
		...
		bit 11: EC00-EFFF
	CF set if hardware not initialised yet
--------B-1600-------------------------------
INT 16 - KEYBOARD - GET KEYSTROKE
	AH = 00h
Return: AH = BIOS scan code
	AL = ASCII character
Notes:	on extended keyboards, this function discards any extended keystrokes,
	  returning only when a non-extended keystroke is available
	the BIOS scan code is usually, but not always, the same as the hardware
	  scan code processed by INT 09.  It is the same for ASCII keystrokes
	  and most unshifted special keys (F-keys, arrow keys, etc.), but
	  differs for shifted special keys.
SeeAlso: AH=01h,AH=05h,AH=10h,AH=20h,INT 18/AH=00h
--------B-1601-------------------------------
INT 16 - KEYBOARD - CHECK FOR KEYSTROKE
	AH = 01h
Return: ZF set if no keystroke available
	ZF clear if keystroke available
	    AH = BIOS scan code
	    AL = ASCII character
Note:	if a keystroke is present, it is not removed from the keyboard buffer;
	  however, any extended keystrokes which are not compatible with 83/84-
	  key keyboards are removed in the process of checking whether a
	  non-extended keystroke is available
SeeAlso: AH=00h,AH=11h,AH=21h,INT 18/AH=01h
--------B-1602-------------------------------
INT 16 - KEYBOARD - GET SHIFT FLAGS
	AH = 02h
Return: AL = shift flags (see #0442)
SeeAlso: AH=12h,AH=22h,INT 17/AH=0Dh,INT 18/AH=02h

Bitfields for keyboard shift flags:
Bit(s)	Description	(Table 0442)
 7	Insert active
 6	CapsLock active
 5	NumLock active
 4	ScrollLock active
 3	Alt key pressed (either Alt on 101/102-key keyboards)
 2	Ctrl key pressed (either Ctrl on 101/102-key keyboards)
 1	left shift key pressed
 0	right shift key pressed
SeeAlso: #0447,#2345
--------B-1603-------------------------------
INT 16 - KEYBOARD - SET TYPEMATIC RATE AND DELAY
	AH = 03h
	AL = subfunction
		 00h set default delay and rate (PCjr and some PS/2)
	    01h increase delay before repeat (PCjr)
	    02h decrease repeat rate by factor of 2 (PCjr)
	    03h increase delay and decrease repeat rate (PCjr)
	    04h turn off typematic repeat (PCjr and some PS/2)
	    05h set repeat rate and delay (AT,PS)
		BH = delay value (00h = 250ms to 03h = 1000ms)
		BL = repeat rate (00h=30/sec to 0Ch=10/sec [def] to 1Fh=2/sec)
	    06h get current typematic rate and delay (newer PS/2s)
		Return: BL = repeat rate (see above)
			BH = delay (see above)
Note:	use INT 16/AH=09h to determine whether some of the subfunctions are
	  supported
SeeAlso: INT 16/AH=09h,AH=29h"HUNTER",AH=2Ah"HUNTER"
--------B-1604-------------------------------
INT 16 - KEYBOARD - SET KEYCLICK (PCjr only)
	AH = 04h
	AL = keyclick state
	    00h off
	    01h on
SeeAlso: AH=03h
--------B-1605-------------------------------
INT 16 - KEYBOARD - STORE KEYSTROKE IN KEYBOARD BUFFER (AT/PS w enh keybd only)
	AH = 05h
	CH = scan code
	CL = ASCII character
Return: AL = 00h if successful
	     01h if keyboard buffer full
Notes:	under DESQview, a number of "keystrokes" invoke specific
	  DESQview-related actions when they are read from the keyboard
	  buffer (see #0443)
	similarly, some "keystrokes" invoke special functions on the HP 100LX
	  and HP 200LX (see #0444)
SeeAlso: AH=00h,AH=25h"K3",AH=71h,AH=FFh,INT 15/AX=DE10h

(Table 0443)
Values for pseudo-keystrokes for DESQview:
 38FBh or FB00h	switch to next window (only if main menu already popped up)
 38FCh or FC00h	pop up DESQview main menu
 38FEh or FE00h	close the current window
 38FFh or FF00h	pop up DESQview learn menu

(Table 0444)
Values for pseudo-keystrokes for HP 100LX/200LX:
 EE00h	pop up topcard display and set other system manager applications
	  into sleep mode
--------B-1605-------------------------------
INT 16 - KEYBOARD - SELECT KEYBOARD LAYOUT (PCjr only)
	AH = 05h
	AL = function
	    01h set keyboard layout to French
	    02h set keyboard layout to German
	    03h set keyboard layout to Italian
	    04h set keyboard layout to Spanish
	    05h set keyboard layout to UK
	    80h check if function supported
		Return: AL <> 80h if supported
Return: ???
Note:	this function is called by the DOS 3.2 KEYBxx.COM
SeeAlso: AH=92h,AH=A2h
--------B-1609-------------------------------
INT 16 - KEYBOARD - GET KEYBOARD FUNCTIONALITY
	AH = 09h
Return: AL = supported keyboard functions (see #0445)
Notes:	this function is only available if bit 6 of the second feature byte
	  returned by INT 15/AH=C0h is set (see #0383)
	reportedly, the Award Modular BIOS v4.50G returns the keyboard function
	  flags in AH instead of AL, and provides this function even though
	  its availability is not indicated by INT 15/AH=C0h
SeeAlso: AH=03h,AH=0Ah,AH=10h,AH=11h,AH=12h,AH=20h,AH=21h,AH=22h,INT 15/AH=C0h

Bitfields for supported keyboard functions:
Bit(s)	Description	(Table 0445)
 7	reserved
 6	INT 16/AH=20h-22h supported (122-key keyboard support)
 5	INT 16/AH=10h-12h supported (enhanced keyboard support)
 4	INT 16/AH=0Ah supported
 3	INT 16/AX=0306h supported
 2	INT 16/AX=0305h supported
 1	INT 16/AX=0304h supported
 0	INT 16/AX=0300h supported
SeeAlso: #0385
--------B-160A-------------------------------
INT 16 - KEYBOARD - GET KEYBOARD ID
	AH = 0Ah
Return: BX = keyboard ID (see #0446)
Note:	check return value from AH=09h to determine whether this function is
	  supported
SeeAlso: AH=09h

(Table 0446)
Values for keyboard ID:
 0000h	no keyboard attached
 41ABh	Japanese "G" keyboard (translate mode)
 54ABh	Japanese "P" keyboard (translate mode)
 83ABh	Japanese "G" keyboard (pass-through mode)
 84ABh	Japanese "P" keyboard (pass-through mode)
 90ABh	old Japanese "G" keyboard
 91ABh	old Japanese "P" keyboard
 92ABh	old Japanese "A" keyboard
--------B-1610-------------------------------
INT 16 - KEYBOARD - GET ENHANCED KEYSTROKE (enhanced kbd support only)
	AH = 10h
Return: AH = BIOS scan code
	AL = ASCII character
Notes:	if no keystroke is available, this function waits until one is placed
	  in the keyboard buffer
	the BIOS scan code is usually, but not always, the same as the hardware
	  scan code processed by INT 09.  It is the same for ASCII keystrokes
	  and most unshifted special keys (F-keys, arrow keys, etc.), but
	  differs for shifted special keys.
	unlike AH=00h, this function does not discard extended keystrokes
	INT 16/AH=09h can be used to determine whether this function is
	  supported, but only on later model PS/2s
SeeAlso: AH=00h,AH=09h,AH=11h,AH=20h
--------B-1611-------------------------------
INT 16 - KEYBOARD - CHECK FOR ENHANCED KEYSTROKE (enh kbd support only)
	AH = 11h
Return: ZF set if no keystroke available
	ZF clear if keystroke available
	    AH = BIOS scan code
	    AL = ASCII character
Notes:	if a keystroke is available, it is not removed from the keyboard buffer
	unlike AH=01h, this function does not discard extended keystrokes
	some versions of the IBM BIOS Technical Reference erroneously report
	  that CF is returned instead of ZF
	INT 16/AH=09h can be used to determine whether this function is
	  supported, but only on later model PS/2s
SeeAlso: AH=01h,AH=09h,AH=10h,AH=21h
--------B-1612-------------------------------
INT 16 - KEYBOARD - GET EXTENDED SHIFT STATES (enh kbd support only)
	AH = 12h
Return: AL = shift flags 1 (same as returned by AH=02h) (see #0447)
	AH = shift flags 2 (see #0448)
Notes:	AL bit 3 set only for left Alt key on many machines
	AH bits 7 through 4 always clear on a Compaq SLT/286
	INT 16/AH=09h can be used to determine whether this function is
	  supported, but only on later model PS/2s
SeeAlso: AH=02h,AH=09h,AH=22h,AH=51h,INT 17/AH=0Dh

Bitfields for keyboard shift flags 1:
Bit(s)	Description	(Table 0447)
 7	Insert active
 6	CapsLock active
 5	NumLock active
 4	ScrollLock active
 3	Alt key pressed (either Alt on 101/102-key keyboards)
 2	Ctrl key pressed (either Ctrl on 101/102-key keyboards)
 1	left shift key pressed
 0	right shift key pressed
SeeAlso: #0442,#0448

Bitfields for keyboard shift flags 2:
Bit(s)	Description	(Table 0448)
 7	SysReq key pressed (SysReq is often labeled SysRq)
 6	CapsLock pressed
 5	NumLock pressed
 4	ScrollLock pressed
 3	right Alt key pressed
 2	right Ctrl key pressed
 1	left Alt key pressed
 0	left Ctrl key pressed
SeeAlso: #0447
--------J-1613-------------------------------
INT 16 - DOS/V - DOUBLE-BYTE CHARACTER SET SHIFT CONTROL
	AH = 13h
	AL = function
	    00h set shift status
		DX = shift status (see #0449), must preserve internal status
			  bits
	    01h get shift status
		Return: DX = current shift status (see #0449)
Note:	these functions are supplied by the Japanese Front-End Processor
SeeAlso: AH=14h,INT 21/AX=6301h

Bitfields for DOS/V shift status:
Bit(s)	Description	(Table 0449)
 0	full-size rather than half-size
 2-1	character input mode
	00 alphanumeric, 01 Katakana, 10 Hiragana, 11 unused
 5-3	internal status
 6	Romaji enabled
 7	Katakana to Kanji conversion enabled
 15-8	internal status
--------J-1614-------------------------------
INT 16 - DOS/V - SHIFT STATUS DISPLAY CONTROL
	AH = 14h
	AL = function
	    00h enable display
	    01h disable display
	    02h get display state
		Return: AL = current state (00h enabled, 01h disabled)
Desc:	control the screen-bottom shift status row(s) for the Japanese
	  Front-End Processor
SeeAlso: AH=13h,INT 10/AH=19h,INT 10/AH=1Dh
--------B-1620-------------------------------
INT 16 - KEYBOARD - GET 122-KEY KEYSTROKE (122-key kbd support only)
	AH = 20h
Return: AH = BIOS scan code (see AH=10h for details)
	AL = ASCII character
Note:	use AH=09h to determine whether this function is supported
SeeAlso: AH=00h,AH=09h,AH=10h,AH=21h,AH=22h
--------b-1620------------------------------------
INT 16 - HUNTER 16 - SET TEMPORARY SHIFT
	AH = 20h
	AL = shift status (see #0450)
Notes:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
	the user can override the specified settings by pressing the keys

Bitfields for HUNTER 16 shift status:
Bit(s)	Description	(Table 0450)
 4	Scroll Lock on
 5	Num Lock on
 6	Caps Lock on
--------K-1620-------------------------------
INT 16 O - K3 v1.5+, K3PLUS v5.0+ - GET EXTENDED BUFFER STATE
	AH = 20h
Return: AX = K3 version
	ES:BX -> extended keyboard buffer start
	ES:DX -> extended keyboard buffer end
	ES:SI -> next keystroke
	ES:DI -> last keystroke in buffer
	CX = number of keystrokes in buffer
Program: K3PLUS is an enhancement by Matthias Paul and Axel C. Frinke of the
	  K3 extended German keyboard driver by Martin Gerdes published in c't
	  magazine in 1988
Note:	this function is normally unsupported under K3PLUS v6.0+; use AX=AF20h
	  instead
SeeAlso: AH=25h"K3",AX=AF20h,INT 2F/AX=D44Fh/BX=0000h,INT 2F/AX=ED58h
--------B-1621-------------------------------
INT 16 - KEYBOARD - CHECK FOR 122-KEY KEYSTROKE (122-key kbd support only)
	AH = 21h
Return: ZF set if no keystroke available
	ZF clear if keystroke available
	    AH = BIOS scan code
	    AL = ASCII character
Notes:	use AH=09h to determine whether this function is supported
	some versions of the IBM BIOS Technical Reference erroneously report
	  that CF is returned instead of ZF
SeeAlso: AH=01h,AH=09h,AH=11h,AH=20h,AH=21h
--------b-1621------------------------------------
INT 16 - HUNTER 16 - CONTROL SHIFT KEYS
	AH = 21h
	AL = shift keys to control (see #0442)
	BL = shift state for disabled keys
Note:	If a bit in AL is set the key is disabled and set to the state of the
	  corresponding bit in BL
SeeAlso: AH=20h"HUNTER",AH=22h"HUNTER"
--------B-1622-------------------------------
INT 16 - KEYBOARD - GET 122-KEY SHIFT STATUS (122-key kbd support only)
	AH = 22h
Return: AL = shift flags 1 (see #0447)
	AH = shift flags 2 (see #0448)
Note:	use AH=09h to determine whether this function is supported
SeeAlso: AH=02h,AH=09h,AH=12h,AH=20h,AH=21h
--------b-1622------------------------------------
INT 16 - HUNTER 16 - CONTROL CTRL-ALT-DEL
	AH = 22h
	AL = new Ctrl-Alt-Del state (00h enabled, nonzero disabled)
	BX = 0708h
	CX = 0910h
	DX = 1112h
Return: AL = 00h if successful
SeeAlso: AH=21h"HUNTER",AH=23h"HUNTER",AH=2Ah
--------b-1623------------------------------------
INT 16 - HUNTER 16 - CONTROL EMERGENCY BREAKOUT
	AH = 23h
	AL = new state of breakout (00h enabled, nonzero disabled)
	BX = 0708h   
	CX = 0910h
	DX = 1112h
Return: AL = 00h if successful
Desc:	Enables or disables the emergency breakout feature, where the
	  Hunter 16 at power on checks whether the X and P keys are pressed.
	  If so the machine will boot rather than continue the running program
SeeAlso: AH=22h"HUNTER"
--------b-1624------------------------------------
INT 16 - HUNTER 16 - REDEFINE KEY CODES
	AH = 24h
	AL = Matrix Code (see #0451)
	BL = new Key code
Return: AL = status (00h successful, nonzero failed)
SeeAlso: AH=2Bh,AH=2Ch

(Table 0451)
Values for HUNTER 16 Matrix Code:
 Code  Key		Code	Key		Code	Key
 00h   Esc key		1Eh	Space		3Bh	L
 01h   1		21h	0		3Ch	,
 02h   Q		22h	-		3Eh	Right shift
 03h   Tab		23h	'		42h	8
 04h   Num Lock		24h	Keypad 4	43h	7
 05h   \		25h	Enter		44h	U
 08h   LShift		26h	Keypad 7	45h	I
 09h   Ctrl		27h	.		46h	J
 0Ah   "Paw" key	28h	Keypad 1	47h	K
 0Bh   2		29h	Keypad 0	48h	M
 0Ch   W		2Ch	=		49h	N 
 0Dh   A		2Dh	Backspace	4Ah	/
 0Eh   S		2Eh	Keypad 8	4Dh	6
 0Fh   Z		2Fh	Keypad 9	4Eh	5
 11h   Alt		30h	Keypad 5	4Fh	T
 16h   4		31h	Keypad 6	50h	Y
 17h   3		32h	Keypad 2	51h	G
 18h   E		33h	Keypad 3	52h	H
 19h   R		34h	Keypad .	53h	B
 1Ah   D		37h	9		54h	V
 1Bh   F		38h	O		55h	#
 1Ch   X		39h	P		58h	Pwr
 1Dh   C		3Ah	;		59h	Shift Pwr
--------b-1625------------------------------------
INT 16 - HUNTER 16 - RESET KEYBOARD
	AH = 25h
Return: AL = 00h
Desc:	restores the standard keyboard layout after any remapping
SeeAlso: AH=24h,AH=2Bh,AH=2Ch
--------K-1625-------------------------------
INT 16 O - K3 v1.5+, K3PLUS v5.0+ - COPY INTO EXTENDED BUFFER
	AH = 25h
	CX = number of keystrokes to copy
	ES:SI -> buffer containing keystrokes
Return: CF clear if successful
	CF set on error (i.e. buffer full)
	    CX = number of keystrokes NOT transferred
	    ES:SI -> first keystroke not transferred
Note:	this function is normally unsupported under K3PLUS v6.0+; use AX=AF20h
	  instead
SeeAlso: AH=05h,AH=20h"K3",AX=AF25h,INT 2F/AX=D44Fh/BX=0001h
--------b-1626------------------------------------
INT 16 - HUNTER 16 - CONTROL KEYCLICK
	AH = 26h
	AL = new state of keyclicks (00h disabled, 01h enabled)
Return: AL = 00h
SeeAlso: AH=2Ah
--------b-1627------------------------------------
INT 16 - HUNTER 16 - CONTROL SCREEN DUMP AREA
	AH = 27h
	AL = what to dump
	    00h whole (virtual) window
	    01h LCD window only
Return: AL = 00h
Desc:	control whether printscren dumps the whole 80x25 screen or only the
	  part displayed in the LCD window
Note:	the Hunter 16 has a 240x64 LCD display which serves as a window into
	  a 640x200 virtual screen
--------b-1629------------------------------------
INT 16 - HUNTER 16 - GET KEY REPEAT
	AH = 29h
Return: BL = Typematic rate (characters per second) (see #0452)
	BH = delay (00h = 250ms, 01h = 500ms, 02h = 750ms, 03h = 1s)
SeeAlso: AH=03h,AH=2Ah

(Table 0452)
Values for HUNTER 16 Typematic rate:
 00h	30.0	 08h	15.0	 10h	7.5	 18h	3.7
 01h	26.7	 09h	13.3	 11h	6.7	 19h	3.3
 02h	24.0	 0Ah	12.0	 12h	6.0	 1Ah	3.0
 03h	21.8	 0Bh	10.9	 13h	5.5	 1Bh	2.7
 04h	20.0	 0Ch	10.0	 14h	5.0	 1Ch	2.5
 05h	18.5	 0Dh	 9.2	 15h	4.6	 1Dh	2.3
 06h	17.1	 0Eh	 8.6	 16h	4.3	 1Eh	2.1
 07h	16.0	 0Fh	 8.0	 17h	4.0	 1Fh	2.0
SeeAlso: AH=2Ah
--------b-162A------------------------------------
INT 16 - HUNTER 16 - CONTROL KEY REPEAT
	AH = 2Ah
	AL = new state of keyboard autorepeat (00h disabled, 01h enabled)
SeeAlso: AH=03h,AH=26h,AH=29h,AH=2Bh
--------b-162B------------------------------------
INT 16 - HUNTER 16 - REDEFINE KEY SCAN CODES
	AH = 2Bh
	AL = which key table to redefine
	    00h unshifted
	    01h shifted
	    02h Numlock
	BH = standard scan code of key (00h-80h)
	BL = new scan code
Desc:	redefine the generated scan code from BH to BL
SeeAlso: AH=24h,AH=2Ah,AH=2Ch
--------b-162C------------------------------------
INT 16 - HUNTER 16 - REDEFINE RAW KEY CODES
	AH = 2Ch
	AL = Matrix code of key (see AH=29h)
	BL = new key code
Return: AL = status (00h success, nonzero failed)
Desc:	redefine the key code generated by holding the PAW key down and
	  pressing the key in AL
SeeAlso: AH=24h,AH=2Bh
--------b-162D------------------------------------
INT 16 - HUNTER 16 - CONTROL BREAK KEYS
	AH = 2Dh
	AL = enabled break keys
	    bit 0 Ctrl-C
	    bit 1 Ctrl-Break
	BX = 0708h
	CX = 0910h
	DX = 1112h
Return: AL = status (00h success, FFh failed)
SeeAlso: AH=21h"HUNTER"
--------U-163577-----------------------------
INT 16 U - TextWare TWTSR - API
	AX = 3577h
	CX = function
	    00CBh ???
		Return: AX = 0000h
			BX = 0000h
			DX:CX -> ???
	    00CCh uninstall
		Return: AX = status
			    0000h successful
			    FFFDh unable to unload because vectors taken
	    00CDh ???
		Return: AX = 0000h
			BX = 0000h
			DX:CX -> ???
	    other
		Return: AX = 5345h ('SE')
Program: TWTSR is a TSR which allows the TextWare hypertext browser to be
	  popped up via hotkey
SeeAlso: AX=D724h
--------U-164252-----------------------------
INT 16 - TEXTCAP 2.0 - INSTALLATION CHECK
	AX = 4252h
Return: AX = 5242h if installed
Program: TEXTCAP 2.0 is a heavily modified (by Gisbert W. Selke) version of the
	  PC Magazine utility CAPTURE written by Tom Kihlken
SeeAlso: AX=4253h,AX=4254h
--------U-164253-----------------------------
INT 16 - TEXTCAP 2.0 - UNINSTALL
	AX = 4253h
Return: AX = segment of resident code
Notes:	the uninstall code does not check whether interrupt vectors have been
	  chained by other programs
	the caller must free the main memory block (using the returned segment)
SeeAlso: AX=4252h,AX=4254h
--------U-164254-----------------------------
INT 16 - TEXTCAP 2.0 - DUMP TEXT SCREEN TO FILE
	AX = 4254h
Return: AX = status
	    4254h if screen dump will be written as soon as disk becomes idle
	    5442h if screen dump written
SeeAlso: AX=4252h,AX=4253h
--------e-164500-----------------------------
INT 16 - Shamrock Software EMAIL - GET STATUS
	AX = 4500h
	DL = port number (01h = COM1)
	ES:BX -> 13-byte buffer for ASCIZ name
Return: AX = 4D00h if EMAIL installed on specified port
	    ES:BX -> "" if no connection
		  -> "*" if connection but caller has not identified name
		  -> name otherwise
	    CX = version (CH = major, CL = minor)
	    DL = privilege level of user (00h = guest)
	    DH = chosen language (00h German, 01h English)
SeeAlso: AX=4501h,AX=4502h
--------e-164501-----------------------------
INT 16 - Shamrock Software EMAIL - GET ELAPSED ONLINE TIME AND MAXIMUM TIME
	AX = 4501h
	DL = port number (01h = COM1)
Return: AX = 4D00h if EMAIL installed on specified port
	    BX = maximum connect time in clock ticks
	    CX = maximum connect time for guests (without name) in clock ticks
	    DX = elapsed connect time of current user in clock ticks
SeeAlso: AX=4500h
--------e-164502-----------------------------
INT 16 - Shamrock Software EMAIL - GET CURRENT COMMUNICATIONS PARAMETERS
	AX = 4502h
	DL = port number (01h = COM1)
Return: AX = 4D00h if EMAIL installed on specified port
	    BL = current value of serial port's Line Control Register
	    BH = flags (see #0453)
	    CX = selected country code (33 = France, 49 = Germany, etc)
	    DX = baudrate divisor (115200/DX = baudrate)
SeeAlso: AX=4500h

Bitfields for Shamrock Software EMAIL flags:
Bit(s)	Description	(Table 0453)
 0	ISO code
 1	pause
 2	linefeed
 3	ANSI sequences
--------e-164503-----------------------------
INT 16 - Shamrock Software EMAIL - SPECIFY COMMAND-WORD FOR USER FUNCTION
	AX = 4503h
	DL = port number (01h = COM1)
	DH = maximum execution time in clock ticks (00h = 5 seconds)
	ES:BX -> ASCIZ string with new user command-word
Return: AX = 4D00h if EMAIL installed on specified port
Notes:	a single user command (consisting of only uppercase letters and digits)
	  may be defined, and remains valid until it is overwritten or the
	  EMAIL program terminates; the user command must be activated by
	  calling AX=4504h at least once.
	an existing command word may be redefined with this function
SeeAlso: AX=4504h,AX=4505h
--------e-164504-----------------------------
INT 16 - Shamrock Software EMAIL - CHECK FOR USER FUNCTION COMMAND-WORD
	AX = 4504h
	DL = port number (01h = COM1)
	ES:BX -> 80-byte buffer for ASCIZ user input line
Return: AX = 4D00h if EMAIL installed on specified port
	    DL = flags
		bit 0: user function supported (always set)
		bit 1: user entered user-function command word
	    if DL bit 1 set,
		ES:BX buffer contains line entered by user which begins with
			the defined command word and has been converted to all
			caps
Note:	caller must process the returned commandline and invoke AX=4505h
	  within five seconds with the result of that processing
SeeAlso: AX=4503h,AX=4505h
--------e-164505-----------------------------
INT 16 - Shamrock Software EMAIL - SEND RESULT OF USER FUNCTION
	AX = 4505h
	DL = port number (01h = COM1)
	DH = error flag
	    bit 3: set on error
	ES:BX -> ASCIZ text to return to user, max 1024 bytes
Return: AH = 4Dh if EMAIL installed on specified port
	AL = status
	    00h successful
	    02h unable to perform function (timeout, prev call not complete)
	    other error
Notes:	if the error flag in DH is set, the string is not sent and an error
	  message is generated instead; if this function is not called within
	  five seconds of AX=4504h, EMAIL automatically generates an error
	  message
	the string is copied into an internal buffer, allowing this function's
	  caller to continue immediately
SeeAlso: AX=4503h,AX=4504h,INT 17/AX=2400h
--------e-164506-----------------------------
INT 16 - Shamrock Software EMAIL - MONITOR XMODEM DOWNLOAD
	AX = 4506h
	DL = port number (01h = COM1)
	ES:BX -> 13-byte buffer for ASCIZ filename
Return: AX = 4D00h if EMAIL installed on specified port
	    DH = Xmodem status
		00h no XGET command given
		01h XGET in progress
		02h XGET completed successfully
	    ES:BX buffer filled with last filename given to XGET command
		(without path)
Note:	DH=02h will only be returned once per XGET; subsequent calls will
	  return DH=00h
SeeAlso: AX=4500h,INT 17/AX=2408h
--------K-164D4F-----------------------------
INT 16 - M16_KBD.COM v5.6 - INSTALLATION CHECK
	AX = 4D4Fh
Return: AX = 6F6Dh if installed
	    ES = segment of resident code
Program: M16_KBD is a shareware Cyrillic keyboard driver by I.V. Morozov
SeeAlso: INT 10/AX=1130h/BX=4D4Fh
--------J-165000-----------------------------
INT 16 - KEYBOARD - AX PC - SET KEYBOARD COUNTRY CODE
	AX = 5000h
	BX = country code
	    0001h USA (English), 0051h Japan
Return: AL = status
	    00h successful
	    01h bad country code
	    02h other error
SeeAlso: AX=5001h,INT 10/AX=5000h,INT 17/AX=5000h
--------J-165001-----------------------------
INT 16 - KEYBOARD - AX PC - GET KEYBOARD COUNTRY CODE
	AX = 5001h
Return: AL = status
	    00h successful
		BX = country code
	    02h error
SeeAlso: AX=5000h,INT 10/AX=5001h,INT 17/AX=5001h
--------J-1651-------------------------------
INT 16 - KEYBOARD - AX PC - READ SHIFT KEY STATUS
	AH = 51h
Return: AL = standard shift key states (see #0442,#0447)
	AH = Kana lock (00h off, 01h on)
SeeAlso: AH=02h,AH=12h,AH=22h
--------t-165453BX5242-----------------------
INT 16 - TSRBONES - INSTALLATION CHECK
	AX = 5453h ('TS')
	BX = 5242h ('RB')
	CX = 4F4Eh ('ON')
	DX = 4553h ('ES')
Return: AX = 4553h if installed
	BX = 4F4Eh if installed
	CX = 5242h if installed
	DX = 5453h if installed
Program: TSRBONES is a skeletal TSR framework by Robert Curtis Davis
Note:	these values are the default as the TSRBONES package is distributed,
	  but will normally be changed when implementing an actual TSR with
	  the TSRBONES skeleton
SeeAlso: INT 2D"AMIS"
--------A-165500-----------------------------
INT 16 C - Microsoft Word internal - MICROSOFT WORD COOPERATION WITH TSR
	AX = 5500h
Return: AX = 4D53h ('MS') if keyboard TSR present
Notes:	during startup, Microsoft Word tries to communicate with any TSRs
	  that are present through this call.
	if the return is not 4D53h, Word installs its own INT 09 and INT 16
	  handlers; otherwise it assumes that the TSR will handle the keyboard
SeeAlso: AX=55FFh,INT 1A/AX=3601h
--------A-1655FE-----------------------------
INT 16 CU - Microsoft QBASIC internal - MICROSOFT COOPERATION WITH TSR
	AX = 55FEh
	DX = function
	    0000h initialize
		ES:BX -> ??? function
		ES:CX -> ??? structure
	    FFFFh shutdown/reset
Return: AX = result
	    4D4Bh only the INT 1B handler will be installed.
	    other: handlers for INT 08, INT 09, INT 16, INT 1B, and INT 1C
		  are installed
Notes:	The pointer in ES:CX seems to point at a structure defining a callback
	  function when new keyboard keys are pressed. If a TSR returns
	  AX=4D4Bh, QBASIC will stop (with IRQ's and interrupts enabled).
	these calls are also made by MS-DOS 6.0's DOSSHELL at startup, exit,
	  and before/after shelling out
	since EDIT.COM and HELP.COM merely invoke QBASIC, those two programs
	  will also cause this interface to be invoked
SeeAlso: INT 16/AX=5500h,INT 1A/AX=3601h
--------U-1655FF-----------------------------
INT 16 C - Microsoft Word - TSR COOPERATION???
	AX = 55FFh
	BX >= 0004h (version of Microsoft Word [BL = major] ???)
	CX = function
	    0000h set ??? flag
	    other clear ??? flag
Notes:	hooks intercepting this call are present in SWAPSH and SWAPDT v1.77j,
	  distributed with PC Tools v7, as well as the Trusted Access
	  SCRNBLNK.COM; this may be part of the standard TesSeRact library
	known to be called by the German edition of Microsoft Word 5.0
SeeAlso: AX=5500h,INT 2F/AX=5453h
--------c-165758BX4858-----------------------
INT 16 U - Netroom CACHECLK - INSTALLATION CHECK
	AX = 5758h
	BX = 4858h ('HX')
	DX = 4443h ('DC')
	CX <> 5758h
Return: BX = 6878h if installed
	CX = 6463h if installed
	    AX = code segment of TSR
	    CX = internal version??? (v3.00 returns 0100h)
Program: CACHECLK is a "cloaked" disk cache included with Netroom
Notes:	if CX=5758h on entry, CACHECLK returns with all registers unchanged
	the cache statistics are located early in the segment pointed at by
	  AX on return
SeeAlso: INT 2F/AX=5758h
----------165758BX5754-----------------------
INT 16 U - Netroom ??? - ???
	AX = 5758h
	BX = 5754h
	???
Return: ???
----------165758BX5755-----------------------
INT 16 U - Netroom ??? - ???
	AX = 5758h
	BX = 5755h
	DS:SI -> ???
Return: ???
----------165758BX5756-----------------------
INT 16 U - Netroom ??? - INSTALLATION CHECK
	AX = 5758h
	BX = 5756h
Return: BX <> 5756h if installed
--------m-165758BX5858-----------------------
INT 16 U - Netroom PRENET - GET OLD INTERRUPT VECTORS
	AX = 5758h
	BX = 5858h
Return: CF clear
	DX:BX -> saved copy of interrupt vector table
Note:	the installation check consists of calling this function and comparing
	  BX against 5858h on return; if it has changed, PRENET is installed
SeeAlso: AX=5758h/BX=5859h
Index:	installation check;Netroom PRENET
--------m-165758BX5859-----------------------
INT 16 U - Netroom POSTNET - GET OLD INTERRUPT VECTORS
	AX = 5758h
	BX = 5859h
Return: CF clear
	DX:BX -> saved copy of interrupt vector table
Note:	the installation check consists of calling this function and comparing
	  BX against 5859h on return; if it has changed, POSTNET is installed
SeeAlso: AX=5758h/BX=5858h
Index:	installation check;Netroom POSTNET
--------U-166969BX6968-----------------------
INT 16 - PC Tools v5.1+ BACKTALK - UNHOOK
	AX = 6969h
	BX = 6968h
Return: resident code unhooked, but not removed from memory
Index:	uninstall;BACKTALK
--------U-166969BX6969-----------------------
INT 16 - PC Tools v5.1+ BACKTALK - INSTALLATION CHECK
	AX = 6969h
	BX = 6969h
	DX = 0000h
Return: DX nonzero if installed
	    BX = CS of resident code
	    DX = PSP segment of resident code
	    DS:SI -> ASCIZ identification string "CPoint Talk"
--------i-166A6B-----------------------------
INT 16 U - FastJuice - DISABLE/UNLOAD???
	AX = 6A6Bh
Return: ???
Program: FastJuice is a resident battery-power monitor by SeaSide Software
SeeAlso: AX=7463h
Index:	uninstall;FastJuice
--------G-166C63-----------------------------
INT 16 U - TMED v1.6a - INSTALLATION CHECK
	AX = 6C63h ('lc')
Return: AX = 4C43h ('LC') if installed
Program: TMED is a freeware resident memory editor by Liang Chen
--------b-166F00-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_INQUIRE" - Extended BIOS INSTALLATION CHECK
	AX = 6F00h
	BX <> 4850h (usually set to 0000h for simplicity)
Return: BX = 4850h ("HP") if present
Notes:	called by recent MS Mouse drivers looking for an HP-HIL mouse
	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
SeeAlso: AX=6F01h,AX=6F04h,AX=6F07h,AX=6F09h,AX=6F0Dh,AX=6F11h,AX=6F12h
SeeAlso: INT 14/AX=6F00h,INT 17/AX=6F00h,INT 33/AX=6F00h
SeeAlso: INT 6F/AH=00h"HP Vectra"
--------b-166F01-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_DEF_ATTR" - GET DEFAULT TYPEMATIC VALUES
	AX = 6F01h
Return: AH = 00h (successful)
	CX = 0004h (size of returned buffer)
	ES:SI -> buffer for typematic info (see #0454)
Note:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
SeeAlso: AX=6F00h,AX=6F02h,AX=6F03h,AX=6F04h

Format of HP Vectra EX-BIOS typematic info:
Offset	Size	Description	(Table 0454)
 00h	BYTE	delay before repeat for all non-Cursor Control Pad keys
		(see #0455)
 01h	BYTE	typematic rate for all non-Cursor Control Pad keys (see #0456)
 02h	BYTE	delay before repeat for Cursor Control Pad keys	(see #0457)
 03h	BYTE	typematic rate for Cursor Control Pad keys (see #0456)

(Table 0455)
Values for HP Vectra EX-BIOS non-CCP delay time:
 00h	17 ms
 01h	150 ms
 02h	283 ms
 03h	417 ms
 04h	550 ms
 05h	683 ms
 06h	817 ms
 07h	950 ms
 08h	1083 ms
 09h	1217 ms
 0Ah	1350 ms
 0Bh	1483 ms
 0Ch	1617 ms
 0Dh	1750 ms
 0Eh	1883 ms
 0Fh	2017 ms
Note:	the above values assume that the key repeat rate has been set to 60 Hz;
	  double the times if set to 30 Hz
SeeAlso: #0454,#0456,#0457

(Table 0456)
Values for HP Vectra EX-BIOS typematic rate:
 00h	60 / sec
 01h	30 / sec
 02h	20
 03h	15
 04h	12
 05h	10
 06h	8.57
 07h	7.5
 08h	6.66
 09h	6 / sec
 0Ah	5.45
 0Bh	5
 0Ch	4.62
 0Dh	4.28
 0Eh	4 / sec
 0Fh	typematic disabled
Note:	the above values assume that the key repeat rate has been set to 60 Hz;
	  halve the rates if set to 30 Hz
SeeAlso: #0455,#0457

(Table 0457)
Values for HP Vectra EX-BIOS CCP delay time:
 00h	17 ms
 01h	83 ms
 02h	150 ms
 03h	217 ms
 04h	283 ms
 05h	350 ms
 06h	417 ms
 07h	483 ms
 08h	550 ms
 09h	617 ms
 0Ah	683 ms
 0Bh	750 ms
 0Ch	817 ms
 0Dh	883 ms
 0Eh	950 ms
 0Fh	1017 ms
Note:	the above values assume that the key repeat rate has been set to 60 Hz;
	  double the times if set to 30 Hz
SeeAlso: #0455,#0456
--------b-166F02-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_GET_ATTR" - GET CURRENT TYPEMATIC VALUES
	AX = 6F02h
Return: AH = 00h (successful)
	CX = 0004h (size of returned buffer)
	ES:SI -> buffer for typematic info (see #0454)
Note:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
SeeAlso: AX=6F00h,AX=6F02h,AX=6F03h,AX=6F04h
SeeAlso: AX=6F00h,AX=6F01h,AX=6F03h
--------b-166F03-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_SET_ATTR" - SET TYPEMATIC VALUES
	AX = 6F03h
	ES:SI -> buffer containing typematic info (see #0454)
Return: AH = 00h (successful)
Note:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
SeeAlso: AX=6F00h,AX=6F02h,AX=6F03h,AX=6F04h
SeeAlso: AX=6F00h,AX=6F01h,AX=6F02h
--------b-166F04-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_DEF_MAPPING" - GET DEFAULT KEY MAPPINGS
	AX = 6F04h
	ES:SI -> mapping buffer (see #0458)
Return: AH = 00h (successful)
	CX = 001Eh (number of bytes in buffer)
	ES:SI buffer filled
Notes:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
	the HIL input system translates the HIL keyboard events to simulate
	  an IBM-compatible keyboard; the translation can be altered
	  dynamically by applications
SeeAlso: AX=6F00h,AX=6F05h,AX=6F06h

Format of HP Vectra EX-BIOS keyboard mapping info:
Offset	Size	Description	(Table 0458)
 00h  3 WORDs	entry for V_QWERTY driver (IP, CS, DS)
 06h  3 WORDs	entry for V_SOFTKEY driver (IP, CS, DS)
 0Ch  3 WORDs	entry for V_FUNCTION driver
 12h  3 WORDs	entry for V_NUMPAD driver
 18h  3 WORDs	entry for V_CCP driver
--------b-166F05-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_GET_MAPPING" - GET CURRENT KEY MAPPINGS
	AX = 6F05h
	ES:SI -> mapping buffer (see #0458)
Return: AH = 00h (successful)
	CX = 001Eh (number of bytes in buffer)
	ES:SI buffer filled
Note:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
SeeAlso: AX=6F04h,AX=6F06h
--------b-166F06-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_SET_MAPPING" - SET KEY MAPPINGS
	AX = 6F06h
	CX = number of bytes in buffer (001Eh)
	ES:SI -> mapping buffer (see #0458)
Return: AH = 00h (successful)
Notes:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
	any application which modifies the key mappings should restore them
	  before terminating
	drivers installed with this function are assured of 32 bytes of stack
	  space when they are invoked
SeeAlso: AX=6F04h,AX=6F05h,AX=6F07h
--------b-166F07-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_SET_XLATORS" - SET CCP AND SOFTKEY PADS
	AX = 6F07h
	BL = translation to set (see #0459)
Return: AH = 00h (successful)
Notes:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
	this function may no longer work properly if the application has
	  modified the key mappings with AX=6F06h
SeeAlso: AX=6F06h,AX=6F09h

(Table 0459)
Values for HP Vectra keyboard translation specifier:
 00h	map V_CCP to V_CCPCUR, forcing the cursor pad to return cursor keys
 01h	map V_CCP to V_CCPNUM, forcing the cursor pad to always return numbers
 02h	map V_CCP to V_OFF, disabling the cursor pad
 03h	map V_CCP to V_CCPGID, converting cursor pad keys to GID data
 04h	map V_CCP to V_RAW, passing cursor pad data untranslated to INT 09
 05h	map V_SOFTKEY to V_SKEY2KFEY, translating into standard function keys
 06h	map V_SOFTKEY to V_RAW, passing Softkey scancodes direct to INT 09
 07h	map V_SOFTKEY to V_OFF, disabling HP Softkeys
SeeAlso: #0460

(Table 0460)
Values for HP Vectra scancodes and BIOS keycodes for V_RAW translator:
	      INT 09		 INT 16 keycode
    Key	     scan code	Default	 Shifted   Ctrl	     Alt
 * (NumPd)	37h	2Ah	 (Prt Sc)  00/72h    00/37H
 Sysreq		54h	  --	 --	   --	     --
 CCP-Up		60h	00/D9h	 00/BFh	   00/A5h    00/8BH
 CCP-Left	61h	00/DAh	 00/C0h	   00/A6h    00/8CH
 CCP-Down	62h	00/DBh	 00/C1h	   00/A7h    00/8DH
 CCP-Right	63h	00/DCh	 00/C2h	   00/A8h    00/8EH
 CCP-Home	64h	00/DDh	 00/C3h	   00/A9h    00/8FH
 CCP-PgUp	65h	00/DEh	 00/C4h	   00/AAh    00/90H
 CCP-End	66h	00/DFh	 00/C5h	   00/ABh    00/91H
 CCP-PgDn	67h	00/E0h	 00/C6h	   00/ACh    00/92H
 CCP-Ins	68h	00/E1h	 00/C7h	   00/ADh    00/93H
 CCP-Del	69h	00/E2h	 00/C8h	   00/AEh    00/94H
 CCP-CNTR	6Ah	00/E3h	 00/C9h	   00/AFh    00/95H
 F1		70h	00/E9h	 00/CFh	   00/B5h    00/9BH
 F2		71h	00/EAh	 00/D0h	   00/B6h    00/9CH
 F3		72h	00/EBh	 00/D1h	   00/B7h    00/9DH
 F4		73h	00/ECh	 00/D2h	   00/B8h    00/9EH
 F5		74h	00/EDh	 00/D3h	   00/B9h    00/9FH
 F6		75h	00/EEh	 00/D4h	   00/BAh    00/A0H
 F7		76h	00/EFh	 00/D5h	   00/BBh    00/A1H
 F8		77h	00/F0h	 00/D6h	   00/BCh    00/A2H
SeeAlso: #0005,#0459
--------b-166F08-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_KBD" - GET KEYBOARD INFORMATION
	AX = 6F08h
Return: AH = status 
	   00h successful
	   02h unsupported (non-HIL, i.e. standard, keyboard)
	BH = HP-HIL address (HP Vectra AT only???)
	BL = HP-HIL ID (HP Vectra AT only???)
	BL = keyboard language (ES/QS/RS only???) (see #0461)
Notes:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
	the driver's address in the HP_VECTOR_TABLE (see INT 6F/AH=00h) may
	  be computed as (BH-1)*6 + N, where N is the address of the first
	  HP-HIL device driver (see INT 6F/AH=0Ah"SF_INQUIRE_FIRST")
SeeAlso: AX=6F05h,AX=6F09h,INT 6F/AH=0Ah"SF_INQUIRE_FIRST"

(Table 0461)
Values for HP HIL keyboard language code:
 00h	reserved					      
 01h	Arabic-French					      
 02h	Kanji						      
 03h	Swiss-French					      
 04h	Portugese					      
 05h	Arabic						      
 06h	Hebrew						      
 07h	Canadian-English				      
 08h	Turkish						      
 09h	Greek						      
 0Ah	Thai						      
 0Bh	Italian						      
 0Ch	Hangul (Korean)					      
 0Dh	Dutch						      
 0Eh	Swedish						      
 0Fh	German						      
 10h	Chinese (PRC)	      
 11h	Chinese (Taiwan)
 12h	Swiss (French ii)     
 13h	Spanish		      
 14h	Swiss (German ii)     
 15h	Belgian (Flemish)     
 16h	Finish		      
 17h	United Kingdom	      
 18h	French-Canadian	      
 19h	French-German	      
 1Ah	Norwegian	      
 1Bh	French		      
 1Ch	Danish		      
 1Dh	Katakana	      
 1Eh	Latin American Spanish
 1Fh	United States-American
 20h-FEh reserved
 FFh	non-HP keyboard (IBM AT keyboard and IBM Enhanced keyboard)
--------b-166F09-----------------------------
INT 16 - HP Vectra EX-BIOS - "F16_KBD_RESET" - RESET KEYBOARD TO DEFAULTS
	AX = 6F09h
Return: AH = 00h (successful)
Desc:	reset all keyboard mappings to their default translators, and reset
	  typematic values to their defaults
Note:	supported by the original HP Vectra AT and ES/QS/RS series HP Vectras
SeeAlso: AX=6F04h,AX=6F07h,AX=6F08h
--------b-166F0A-----------------------------
INT 16 - HP Vectra ES/QS/RS EX-BIOS - READ PROCESSOR SPEED
	AX = 6F0Ah
Return: AH = 00h (successful)
	BX = speed code
	    0Bh for low speed (see #0462)
	    12h for medium speed (see #0462)
	    0Ch for high speed (see #0462)
Note:	supported by ES, QS, and RS series of HP Vectras
SeeAlso: AX=6F00h

(Table 0462)
Values for HP Vetra CPU speed:
	Vectra		Low	    Medium	High
	ES		8 MHz	     -		 8 MHz
	ES/12		8 MHz	     -		12 MHz
	QS/16, RS/16	8 MHz	     -		16 MHz
	QS/16S		8 MHz	     -		16 MHz
	QS/20, RS/20	8 MHz	     -		20 MHz
	RS/20C		5 MHz	    10 MHz	20 MHz
	RS/25C		5 MHz	    12.5 MHz	25 MHz
--------b-166F0B-----------------------------
INT 16 - HP Vectra ES/QS/RS EX-BIOS - SET PROCESSOR SPEED TO LOW
	AX = 6F0Bh
Return: AH = 00h (successful)
Notes:	see AX=6F0Ah for speed definitions
	supported by ES, QS, and RS series of HP Vectras
SeeAlso: AX=6F00h,AX=6F0Ah
--------b-166F0C-----------------------------
INT 16 - HP Vectra ES/QS/RS EX-BIOS - SET PROCESSOR SPEED TO HIGH
	AX = 6F0Ch
Return: AH = 00h (successful)
Notes:	see AX=6F0Ah for speed definitions
	supported by ES, QS, and RS series of HP Vectras
SeeAlso: AX=6F00h,AX=6F0A
--------b-166F0D-----------------------------
INT 16 - HP Vectra ES/QS/RS EX-BIOS - GET HIL Extended BIOS INTERRUPT NUMBER
	AX = 6F0Dh
Return: AH = interrupt number (default 6Fh, 02h means 6Fh as well)
Notes:	supported by ES, QS, and RS series of HP Vectras
	called by MS Windows HPSYSTEM.DRV and HPEBIOS.386 to support the HP-HIL
	  input system
SeeAlso: AX=6F00h,AX=6F0Eh,INT 6F"HP Vectra"
--------b-166F0E-----------------------------
INT 16 - HP Vectra ES/QS/RS EX-BIOS - SET HIL Extended BIOS INTERRUPT NUMBER
	AX = 6F0Eh
	BL = new interrupt number (60h-6Fh,78h-7Fh)
Return: AH = status (00h = successful)
Desc:	allows the HIL Extended BIOS software to use a non-default interrupt
	  number in case of an interrupt conflict with another application
Notes:	supported by ES, QS, and RS series of HP Vectras
	called by MS Windows HPSYSTEM.DRV and HPEBIOS.386 to support the HP-HIL
	  input system
SeeAlso: AX=6F00h,AX=6F0Dh,INT 6F"HP"
--------b-166F0F-----------------------------
INT 16 - HP Vectras RS/20C and RS/25C - ENABLE MEMORY CACHING
	AX = 6F0Fh
Return: AH = status
	    00h successful
	    FEh cache subsystem is bad
SeeAlso: AX=6F00h,AX=6F10h,AX=6F11h
--------b-166F10-----------------------------
INT 16 - HP Vectras RS/20C and RS/25C - DISABLE MEMORY CACHING
	AX = 6F10h
Return: AH = 00h (successful)
SeeAlso: AX=6F00h,AX=6F0Fh,AX=6F11h
--------b-166F11-----------------------------
INT 16 - HP Vectras RS/20C and RS/25C - GET MEMORY CACHING STATE
	AX = 6F11h
Return: AH = 00h (successful)
	AL bit 0 = cache state
	    0 cache disabled
	    1 cache enabled
SeeAlso: AX=6F00h,AX=6F0Fh,AX=6F10h
--------b-166F12-----------------------------
INT 16 - HP Vectras RS/20C and RS/25C - SET PROCESSOR SPEED TO MEDIUM
	AX = 6F12h
Return: AH = 00h (successful)
Note:	see AX=6F0Ah for speed definitions
SeeAlso: AX=6F00h,AX=6F0Ah
--------K-1670-------------------------------
INT 16 - FAKEY.COM - INSTALLATION CHECK
	AH = 70h
Return: AX = 1954h if installed
Program: FAKEY is a keystroke faking utility by System Enhancement Associates
--------K-1671-------------------------------
INT 16 - FAKEY.COM - PUSH KEYSTROKES
	AH = 71h
	CX = number of keystrokes
	DS:SI -> array of words containing keystrokes to be returned by AH=00h
Program: FAKEY is a keystroke faking utility by System Enhancement Associates
SeeAlso: AH=05h,AH=72h
--------K-1672-------------------------------
INT 16 - FAKEY.COM - CLEAR FAKED KEYSTROKES
	AH = 72h
Program: FAKEY is a keystroke faking utility by System Enhancement Associates
SeeAlso: AH=71h
--------K-1673-------------------------------
INT 16 - FAKEY.COM - PLAY TONES
	AH = 73h
	CX = number of tones to play
	DS:SI -> array of tones (see #0463)
Program: FAKEY is a keystroke faking utility by System Enhancement Associates
SeeAlso: INT 15/AX=1019h

Format of FAKEY.COM tone array entries:
Offset	Size	Description	(Table 0463)
 00h	WORD	divisor for timer channel 2
 02h	WORD	duration in clock ticks
--------i-167463-----------------------------
INT 16 U - FastJuice - INSTALLATION CHECK
	AX = 7463h ("tc")
Return: AX = 5443h ("TC") if installed
Program: FastJuice is a resident battery-power monitor by SeaSide Software
SeeAlso: AX=6A6Bh
--------R-1675-------------------------------
INT 16 - pcANYWHERE III - SET TICK COUNT FOR SCANNING
	AH = 75h
	AL = number of ticks between checks for new screen changes
--------R-1676-------------------------------
INT 16 - pcANYWHERE III - SET ERROR CHECKING TYPE
	AH = 76h
	AL = error checking type
	    00h none
	    01h fast
	    02h slow
--------R-1677-------------------------------
INT 16 - pcANYWHERE III - LOG OFF
	AH = 77h
	AL = mode
	    00h wait for another call
	    01h leave in Memory Resident Mode
	    02h leave in Automatic Mode
	    FFh leave in current operating mode
--------U-167761-----------------------------
INT 16 - WATCH.COM v2.x-v3.0 - INSTALLATION CHECK
	AX = 7761h ('wa')
Return: AX = 5741h ('WA') if installed
Note:	WATCH.COM is part of the "TSR" package by Kim Kokkonen
SeeAlso: INT 21/AX=7761h
--------U-167788BX7789-----------------------
INT 16 - PC Magazine PUSHDIR.COM - INSTALLATION CHECK
	AX = 7788h
	BX = 7789h
	DS:SI -> signature "PUSHDIR VERSION 1.0"
Return: AX = 7789h if installed and signature correct
	BX = 7788h
	SI destroyed
--------R-1679-------------------------------
INT 16 - pcANYWHERE III - CHECK STATUS
	AH = 79h
Return: AX = status
	    FFFFh if resident and active
	    FFFEh if resident but not active
	    FFFDh if in Memory Resident mode
	    FFFCh if in Automatic mode
	    other value if not resident
SeeAlso: AX=7B00h,INT 21/AX=2B44h
--------R-167A-------------------------------
INT 16 - pcANYWHERE III - CANCEL SESSION
	AH = 7Ah
--------R-167B00-----------------------------
INT 16 - pcANYWHERE III - SUSPEND
	AX = 7B00h
SeeAlso: AH=79h,AX=7B01h
--------R-167B01-----------------------------
INT 16 - pcANYWHERE III - RESUME
	AX = 7B01h
SeeAlso: AH=79h,AX=7B00h
--------R-167C-------------------------------
INT 16 - pcANYWHERE III - GET PORT CONFIGURATION
	AH = 7Ch
Return: AH = port number
	AL = baud rate (see #0464)
SeeAlso: AX=7B00h,AH=7Eh

(Table 0464)
Values for pcANYWHERE III baud rate:
 00h	50 baud
 01h	75 baud
 02h	110 baud
 03h	134.5 baud
 04h	150 baud
 05h	300 baud
 06h	600 baud
 07h	1200 baud
 08h	1800 baud
 09h	2000 baud
 0Ah	2400 baud
 0Bh	4800 baud
 0Ch	7200 baud
 0Dh	9600 baud
 0Eh	19200 baud
SeeAlso: #0206
--------R-167D-------------------------------
INT 16 - pcANYWHERE III - GET/SET TERMINAL PARAMETERS
	AH = 7Dh
	AL = subfunction
	    00h set terminal parameters
	    01h get terminal parameters
	    02h get configuration header and terminal parameters
	DS:CX -> terminal parameter block
SeeAlso: AH=7Ch,AH=7Eh
--------R-167E-------------------------------
INT 16 - pcANYWHERE III - COMMUNICATIONS I/O THROUGH PORT
	AH = 7Eh
	AL = subfunction
	    01h port input status
		Return AX = 0 if no characer ready,
		       AX = 1 if character ready
	    02h port input character
		Return AL = received character
	    03h port output character in CX
	    11h hang up phone
SeeAlso: AH=7Ch
--------R-167F-------------------------------
INT 16 - pcANYWHERE III - SET KEYBOARD/SCREEN MODE
	AH = 7Fh
	AL = subfunction
	    00h enable remote keyboard only
	    01h enable host keyboard only
	    02h enable both keyboards
	    08h display top 24 lines
	    09h display bottom 24 lines
	    10h Hayes modem
	    11h other modem
	    12h direct connect
--------U-1680-------------------------------
INT 16 - MAKEY.COM - INSTALLATION CHECK
	AH = 80h
Return: AX = 1954h if installed
Program: MAKEY is a utility by System Enhancement Associates
--------U-168765BX4321-----------------------
INT 16 - AT.COM version 8/26/87 - API
	AX = 8765h
	BX = 4321h
	CX = ??? or FFFFh
	if CX = FFFFh
		DX = number of event to remove or FFFFh
Return: ES:BX -> event record array (see #0465)
Program: AT.COM is a resident scheduler by Bill Frolik

Format of AT.COM event record:
Offset	Size	Description	(Table 0465)
 00h	BYTE	in-use flag (00h free, 01h in use, FFh end of array)
 01h	BYTE	day of date on which to trigger
 02h	BYTE	month of date on which to trigger
 03h	BYTE	trigger time, minute
 04h	BYTE	trigger time, hour
 05h	WORD	offset of command to be executed
----------1692-------------------------------
INT 16 - ???
	AH = 92h
Return: AH <= 80h="" if="" note:="" this="" function="" is="" called="" by="" the="" dos="" 3.2="" keybxx.com="" and="" dos="" 5+="" keyb.com="" seealso:="" ah="05h" pcjr",ah="A2h" "="" --------u-1699-------------------------------="" int="" 16="" -="" scout="" v5.4="" -="" get="" ah="99h" return:="" ax="ABCDh" bx:cx="" -=""> ??? (appears to be start of PSP for resident portion)
Program: Scout is a memory-resident file manager by New-Ware
SeeAlso: AH=9Eh
--------U-169E-------------------------------
INT 16 - SCOUT v5.4 - INSTALLATION CHECK
	AH = 9Eh
Return: AX = ABCDh if installed
Program: Scout is a memory-resident file manager by New-Ware
SeeAlso: AH=99h
----------16A2-------------------------------
INT 16 - ???
	AH = A2h
Return: AH <= 80h="" if="" note:="" this="" function="" is="" this="" function="" is="" called="" by="" the="" dos="" 5+="" keyb.com="" seealso:="" ah="92h" --------v-16aa-------------------------------="" int="" 16="" -="" ptxxx.com="" -="" (xxx="CGA,EGA,VGA,HER...)" call="" gate="" for="" graphics="" ah="AAh" various="" registers="" set="" up="" by="" high="" level="" language.="" return:="" graphics="" performed="" note:="" pt="" stands="" for="" paint="" tools="" which="" is="" a="" graphics="" library="" for="" turbo="" pascal,="" modula="" 2="" and="" others="" from="" databiten="" in="" sweden.="" the="" library="" is="" installed="" as="" a="" memory="" resident="" driver.="" --------u-16aabbbxeeff-----------------------="" int="" 16="" u="" -="" jorj="" v4.3="" -="" installation="" check="" ax="AABBh" bx="EEFFh" return:="" ax="EEFFh" if="" installed="" bx="AABBh" if="" installed="" cl="hotkey" name="" (default="" 6ah="" 'j'="" for="" alt-j)="" program:="" jorj="" is="" a="" shareware="" dictionary="" with="" phonetic="" lookup="" by="" jorj="" software="" co.="" index:="" hotkeys;jorj="" --------k-16af20bx4b33-----------------------="" int="" 16="" -="" k3plus="" v6.00+="" (api="" v2.0+)="" -="" get="" extended="" buffer="" state="" ax="AF20h" bx="4B33h" ('k3')="" return:="" ax="K3" version="" (same="" as="" returned="" in="" bx="" by="" ax="AF4Dh)" es:bx="" -=""> extended keyboard buffer start
	ES:DX -> extended keyboard buffer end
	ES:SI -> next keystroke
	ES:DI -> last keystroke in buffer
	CX = number of keystrokes in buffer
Program: K3PLUS is an enhancement by Matthias Paul and Axel C. Frinke of the
	  K3 extended German keyboard driver by Martin Gerdes published in c't
	  magazine in 1988
Note:	this function replaces the identical function AH=20h"K3"
SeeAlso: AH=20h"K3",AX=AF25h,AX=AF4Dh,AX=AF50h,INT 2F/AX=ED58h
--------K-16AF25BX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.0+) - COPY INTO EXTENDED BUFFER
	AX = AF25h
	BX = 4B33h ('K3')
	CX = number of keystrokes to copy
	ES:SI -> buffer containing keystrokes
Return: CF clear if successful
	CF set on error (i.e. buffer full)
	    CX = number of keystrokes NOT transferred
	    ES:SI -> first keystroke not transferred
Note:	this function replaces the identical function AH=25h"K3"
SeeAlso: AH=25h"K3",AX=AF20h,AX=AF4Dh,AX=AF50h,INT 2F/AX=D44Fh/BX=0001h
--------K-16AF4DBX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.0+) - GET VERSION INFORMATION
	AX = AF4Dh
	BX = 4B33h ('K3')
Return: AL = 50h if installed
	    BX = K3 version
	    DX = API version
	    ES:CX -> K3 structure (version-dependent) (see #0466)
Program: K3PLUS is an enhancement by Matthias Paul and Axel C. Frinke of the
	  K3 extended German keyboard driver by Martin Gerdes published in c't
	  magazine in 1988
SeeAlso: AX=AF20h,AX=AF50h,AX=AF80h,AX=AF83h,INT 2F/AX=D44Fh/BX=0000h
SeeAlso: INT 2F/AX=ED58h
Index:	installation check;K3PLUS

Format of internal K3 structure:
Offset	Size	Description	(Table 0466)
 00h  3 BYTEs	signature "K3$"
 03h	BYTE	length of structure, including this byte and signature
 04h	WORD	compiler switch option flags A (see #0467)
 06h	WORD	compiler switch option flags B (see #0468)
 08h	BYTE	internal flags A (see #0469)
 09h	BYTE	internal flags B (see #0470)
 0Ah	WORD	DOS version recorded at startup
 0Ch	WORD	"ActTypeSpeed"
 0Eh	WORD	last Keyboard-ID sent
		41ABh translated, 83ABh native (pass-through)
 10h	WORD	offset of K3TAB Special
 12h	WORD	offset of K3TAB German
 14h	WORD	offset of K3TAB Alt
 16h	WORD	offset of K3TAB AltGr
 18h	WORD	offset of K3TAB Ctrl
 1Ah	WORD	offset of K3TAB NPad
 1Ch	WORD	offset of K3TAB CtrlNPad
 1Eh	WORD	offset of K3TAB AltNPad
 20h	WORD	offset of K3TAB ApoTbl or 0000h
 22h	WORD	offset of K3TAB UmlautTbl or 0000h
 24h	WORD	offset of K3TAB UmlautTblExp or 0000h
 26h	WORD	length of video mode table
 28h	WORD	offset of VidMdTbl or 0000h
 2Ah	BYTE	'$' end marker

Bitfields for K3PLUS compiler switch option flags A:
Bit(s)	Description	(Table 0467)
 15	GuINT16Fct2 (general use of INT 16 function 2)
 14	Int15df (INT 15 has to be predefined)
 13	GuAltNP (general use of Alt Numpad)
 12	SupAT (ATs+ supported)
 11	GuINT16Fct3 (general use of INT 16 function 3)
 10	GuINT16Ret (general use of INT16 bad function return)
 9-8	Layout (0-2, 3 reserved; 0=PC, 1=AT, 2=MF)
 7	ForceMF (force MF decode without read-ID)
 6	KXlate (translate keys for special keyboard)
 5	UmlautX (umlaut translation capability included)
 4	ApoX (translate apostrophe)
 3	DoINT16 (INT 16 handler included)
 2	UseCC (CopyCursor included)
 1-0	UseEB
	0=no extended keystroke buffer, 1=reserve mem, 2=use PSP, 3=reserved

Bitfields for K3 compiler switch option flags B:
Bit(s)	Description	(Table 0468)
 15-11	reserved (0)
 10	CtrlSeq (Ctrl macro capability included)
 9-8	SupINT16fct55FE
 6	DoInstallCheck (check for double installation)
 5	SupINT16fct5PcJr (INT 16/AH=05h"PCjr" supported)
 4	SendOut (sound and message output supported)
 3	SupInt16fct5500 (INT 16/AX=5500h supported)
 2	GuINT15Fct4F (calls to INT 15/AH=4Fh supported)
 1-0	UseBufferStart (0=use standard area, 1=set standard area,
	2=use internal indexes, 3=reserved)

Bitfields for K3 internal flags A:
Bit(s)	Description	(Table 0469)
 7	DoingUmlautExp
 6	CallINT15fct4F
 5	Beep1 (requires SendOut set in option flags B)
 4	ATflag (set for AT, 386, PS/2 Models 50-80)
 3	XTflag (set for PC, PC/XT, Micromint PC, Pencock PC, PS/2 Model 30)
 2	KeyClick
 1	UmlautExp
 0	UmlautTrans

Bitfields for K3 internal flags B:
Bit(s)	Description	(Table 0470)
 7-5	reserved
 4	TranslateE0 enabled
 3	Boot enabled
 2	PrintScreen enabled
 1	Break enabled
 0	ApoPendingBeep
--------K-16AF50BX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.0+) - CHECK IF FUNCTION SUPPORTED
	AX = AF50h
	BX = 4B33h ('K3')
	CH = function
		 00h get function flags
		CL = 00h
		Return: CX = supported function flags (see #0471)
		 nonzero reserved for extensions
SeeAlso: AX=AF20h,AX=AF4Dh,AX=AF51h,AX=AF80h

Bitfields for K3PLUS supported function list:
Bit(s)	Description	(Table 0471)
 0	function 4Dh supported
 1	function 50h supported
 2-3	reserved (0)
 4	function 20h supported
 5	function 25h supported
 6	function 51h supported
 7	reserved (0)
 8	function 80h supported
 9	function 81h supported
 10	function 82h supported
 11-15	reserved (0)
--------K-16AF51BX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.00+) - SET OPTIONS
	AX = AF51h
	BX = 4B33h ('K3')
	CX = switches
Return: AL = status
		 00h done
		CX = previous switch settings
		 01h switch not supported
		 FFh other error
SeeAlso: AX=AF4Dh,AX=AF50h,AX=AF80h
--------K-16AF80BX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.00+) - GET ORIGINAL INT 09h VECTOR
	AX = AF80h
	BX = 4B33h ('K3')
Return: AL = status
		 00h not supported
		 81h if successful
		ES:CX -> original INT 09 handler
SeeAlso: AX=AF4Dh,AX=AF50h,AX=AF81h,AX=AF82h
--------K-16AF81BX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.00+) - GET ORIGINAL INT 16h HANDLER
	AX = AF81h
	BX = 4B33h ('K3')
Return: AL = status
		 00h not supported
		 82h if successful
		ES:CX -> original INT 16 handler
SeeAlso: AX=AF4Dh,AX=AF50h,AX=AF80h,AX=AF82h
--------K-16AF82BX4B33-----------------------
INT 16 - K3PLUS v6.00+ (API v2.00+) - GET ORIGINAL INT 10h HANDLER
	AX = AF82h
	BX = 4B33h ('K3')
Return: AL = status
		 00h not supported
		 83h if successful
		ES:CX -> original INT 10 handler
Program: K3PLUS is an enhancement by Matthias Paul and Axel C. Frinke of the
	  K3 extended German keyboard driver by Martin Gerdes published in c't
	  magazine in 1988
SeeAlso: AX=AF4Dh,AX=AF50h,AX=AF80h,AX=AF81h,INT 2F/AX=ED58h
--------m-16B0B1-----------------------------
INT 16 - VGARAM v1.00 - INSTALLATION CHECK
	AX = B0B1h
	ES:DI -> 6 byte signature "VGARAM"
Return: AX = B1B0h if installed,
	DS:BX -> VGARAM Status byte: 0 = OFF, 1 = ON
Program: VGARAM is a utility by Brett Warthen which makes VGA memory which is
	  not used in text modes available for DOS
--------K-16CA--BX736B-----------------------
INT 16 - CtrlAlt Associates STACKEY.COM v3.00 - API
	AH = CAh
	BX = 736Bh ("sk")
	CX = 736Bh
	AL = function
		 00h installation check
		Return: DX = words available in keyboard buffer
		 01h place keystroke in buffer
		DX = keystroke (DH = scan code, DL = ASCII character)
		Return: DX = words available in keyboard buffer
				 FFFFh on error
		 02h flush STACKEY and BIOS keyboard buffers
Return: AX = CAFFh if installed
		 BX = segment of resident code
		 CX = STACKEY version (CH = major, CL = minor)
Program: STACKEY is a shareware keyboard-input faking TSR
Index:	installation check;STACKEY
--------V-16CA00BX6570-----------------------
INT 16 - CtrlAlt Associates EGAPAL.COM v1.00 - INSTALLATION CHECK
	AX = CA00h
	BX = 6570h ("ep")
	CX = 6570h
Return: AX = CAFFh if installed
		 BX = segment of resident code
		 CX = ??? (0090h)
Program: EGAPAL is a TSR supplied with STACKEY which makes EGA palette settings
	  permanent across mode switches
SeeAlso: AX=CA00h/BX=7670h
--------V-16CA00BX7670-----------------------
INT 16 - CtrlAlt Associates VGAPAL.COM v1.00 - INSTALLATION CHECK
	AX = CA00h
	BX = 7670h ("vp")
	CX = 7670h
Return: AX = CAFFh if installed
		 BX = segment of resident code
		 CX = ??? (0090h)
Program: VGAPAL is a TSR supplied with STACKEY which makes VGA palette settings
	  permanent across mode switches
SeeAlso: AX=CA00h/BX=6570h
--------U-16D724CX00CB-----------------------
INT 16 U - APCAL v3.20 - GET ???
	AX = D724h
	CX = 00CBh
Return: AX = 0000h
	BX = 0000h
	DX:CX -> ??? or 0000h:0000h
Program: APCAL is an optionally-resident shareware appointment calendar by
	  Gamma Software
SeeAlso: AX=3577h,AX=D724h/CX=00CCh,AX=D724h/CX=00CDh
--------U-16D724CX00CC-----------------------
INT 16 U - APCAL v3.20 - GET ???
	AX = D724h
	CX = 00CCh
Return: AX = 0000h
	BX = 0000h
	DX:CX -> ??? (apparently an internal data area)
SeeAlso: AX=D724h/CX=00CBh,AX=D724h/CX=00CDh
--------U-16D724CX00CD-----------------------
INT 16 U - APCAL v3.20 - GET ???
	AX = D724h
	CX = 00CDh
Return: AX = ??? (5345h seen)
SeeAlso: AX=D724h/CX=00CBh,AX=D724h/CX=00CCh
----------16DFDF-----------------------------
INT 16 U - Corel PowerSCSI - FDAUDIO.COM - INSTALLATION CHECK
	AX = DFDFh
Return: ES:DI -> ASCII signature "FDAUDIO/CD" followed by ASCII date, i.e.
	  "06/18/93" if installed
----------16E0-------------------------------
INT 16 - AMI BIOS - Flash ROM
	AH = E0h
	AL = subfunction
		 00h get version ???
		 01h type set save requirement ???
		 02h get type set status ???
		 04h lower voltage ???
		 05h raise voltage ???
		 06h write protect ???
		 07h Flash ROM write enable ???
Notes:	the "Meningitis" virus uses this API when attacking a system equipped
	  with an AMI BIOS; it is supposedly able to write itself into the
	  Flash ROM and thus make itself part of the BIOS
	this API is not supported by AMI Pentium BIOS 1.00.05.AX1 on a Flash
	  ROM-equipped Gateway 2000 machine
--------t-16E0E0-----------------------------
INT 16 - TurboPower TSRs - ALTERNATE INSTALLATION CHECK
	AX = E0E0h
Return: AX = 1F1Fh if installed
		 DWORD 0040h:00F0h -> last data block in TSR list (see #0473)
Note:	the returned TSR list provides support for communication among TSRs
	  built with TurboPower's Turbo Professional and Object Professional
	  libraries for Turbo Pascal
SeeAlso: AX=F0F0h
--------U-16ED--BHED-------------------------
INT 16 - BORLAND TURBO LIGHTNING - API
	AH = EDh
	BH = EDh
	BL = function
		 00h installation check
		Return: AX = 5205h
			CH = major version
			CL = minor version
		 01h identical to function 00h???
		 02h get resident data segment
		Return: AX = data segment of resident portion
		 03h get resident ???
		Return: AX = offset of some buffer in resident code seg
		 04h redefine auxiliary dictionary
		DS:SI -> counted filename string
		Return: AL = result code
		 05h select active environment
		AL = environment (00h to 0Ch)
		Return: AX = status
				 0000h if OK
				 0001h if out of range
		 06h toggle AutoProof???
		AL = state (00h off, 01h on)
		 07h ???
		 08h ???
		AL = char???
		CX = ???
		DX = ???
		Return: AX = 0, 1 or 2
		 09h ???
		 0Ah ???
		CX = ???
		DX = ???
		Return: AX = ???
		 0Bh check dictionary integrity???
		DS:SI -> counted dictionary filename string
		Return: AX = 0, 40h, 80h
		 0Ch spellcheck string (disk dictionary, possibly RAM dict as well)
		DS:SI -> counted string to check
		Return: AH = 0
			AL = result code
				00h string found in dictionary
				20h string begins more than one word
				40h string not found
		 0Dh set ???
		(sets an internal flag)
		 0Eh spellcheck string (RAM dictionary only)
		DS:SI -> counted string to check
		Return: AH = 00h
			AL = result code
				 00h string found in dictionary
				 01h string not found
				 02h ???
		 0Fh ???
		 10h ???
Notes:	AX in general returns an error code from most functions.
Index:	installation check;Turbo Lightning
--------U-16EF-------------------------------
INT 16 - CALCULATOR - INSTALLATION CHECK
	AH = EFh
Return: AX = 0088h if installed
Program: CALCULATOR is a shareware popup calculator by Andrzej Brzezinski and
	  Marek Kosznik
--------b-16F0-------------------------------
INT 16 - Compaq 386 and newer - SET CPU SPEED
	AH = F0h
	AL = speed code (see #0472)
	if AL=09h,
		 CX = speed value, 1 (slowest) to 50 (full), 3 ~= 8088
SeeAlso: AH=F1h,AH=F3h

(Table 0472)
Values for speed code:
 00h	equivalent to 6 MHz 80286 (COMMON)
 01h	equivalent to 8 MHz 80286 (FAST)
 02h	full 16 MHz (HIGH)
 03h	toggles between 8 MHz-equivalent and speed set by system board switch
	  (AUTO or HIGH)
 08h	full 16 MHz except 8 MHz-equivalent during floppy disk access
 09h	specify speed directly
--------t-16F0F0-----------------------------
INT 16 - TurboPower TSRs - INSTALLATION CHECK
	AX = F0F0h
Return: AX = 0F0Fh if installed
		 ES:DI -> last data block in TSR list (see #0473)
Note:	the returned TSR list provides support for communication among TSRs
	  built with TurboPower's Turbo Professional and Object Professional
	  libraries for Turbo Pascal
SeeAlso: AX=E0E0h

Format of TurboPower TSR data block:
Offset	Size	Description	(Table 0473)
 00h	DWORD	pointer to program tag (counted ASCII string)
 04h	WORD	interface version number (0400h)
 06h	DWORD	pointer to command entry point
 0Ah	DWORD	pointer to previous data block (0000h:0000h if none)
 0Eh	DWORD	pointer to next data block (0000h:0000h if none)
---swappable TSRs only---
 12h	DWORD	pointer to swapping data
 16h	DWORD	pointer to user data
	more???
--------b-16F1-------------------------------
INT 16 - Compaq 386 and newer - READ CURRENT CPU SPEED
	AH = F1h
Return: AL = speed code (see #0472)
	if AL = 09h, CX = speed code
SeeAlso: AH=F0h,AH=F3h
--------b-16F2-------------------------------
INT 16 - Compaq 386 and newer - DETERMINE ATTACHED KEYBOARD TYPE
	AH = F2h
Return: AL = type
		 00h if 11-bit AT keyboard is in use
		 01h if 9-bit PC keyboard is in use
	AH = 00h (04/08/93 system ROM)
--------b-16F3-------------------------------
INT 16 - Compaq 80286s - SET CPU SPEED LIMIT (OVERRIDE JUMPER)
	AH = F3h
	AL = new limit
		 00h limit is 6 Mhz
		 01h limit is 8 Mhz/6 Mhz
SeeAlso: AH=F0h,AH=F1h
--------U-16F398-----------------------------
INT 16 U - NORTON GUIDES - INSTALLATION CHECK
	AX = F398h
Return: AX = 6A73h ("js")
	BH = scan code of current hot key
	BL = ASCII code of current hot key
Note:	NG.EXE was written by John Socha
--------b-16F400-----------------------------
INT 16 - Compaq Systempro and higher - CACHE CONTROLLER STATUS
	AX = F400h
Return: AH = E2h
	AL = status
		 00h not present
		 01h enabled
		 02h disabled
SeeAlso: AX=F401h,AX=F402h
--------b-16F401-----------------------------
INT 16 - Compaq Systempro and higher - ENABLE CACHE CONTROLLER
	AX = F401h
Return: AX = E201h
SeeAlso: AX=F400h,AX=F402h
--------b-16F402-----------------------------
INT 16 - Compaq Systempro and higher - DISABLE CACHE CONTROLLER
	AX = F402h
Return: AX = E202h
SeeAlso: AX=F400h,AX=F401h
--------v-16FA00DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE, VWATCH - INSTALLATION CHECK
	AX = FA00h
	DX = 5945h
Return: CF clear
	DI = 4559h
	BX = BIOS hotkey scancode (default 2F00h) (VSAFE only)
		FFFFh if disabled
Note:	MS-DOS 6.0 bundles VSAFE and VWATCH as part of its virus protection
SeeAlso: AX=FA05h,INT 13/AH=FAh,INT 21/AH=FAh"VDEFEND",INT 2F/AX=6282h
--------v-16FA01DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE, VWATCH - UNINSTALL
	AX = FA01h
	DX = 5945h
Return: CF clear if successful
	DI = 4559h
SeeAlso: AX=FA00h
--------v-16FA02DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE, VWATCH - GET/SET OPTIONS
	AX = FA02h
	DX = 5945h
	BL = new parameter flags (see #0474)
Return: CF clear
	DI = 4559h
	CL = old value of parameter flags

Bitfields for VSAFE/VWATCH parameter flags:
Bit(s)	Description	(Table 0474)
 7	Protect executable files
 6	Protect FD boot sector
 5	Protect HD boot sector
 4	Boot sector viruses
 3	Check executable files
 2	General write protect
 1	Resident
 0	HD Low level format
--------v-16FA03DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE, VWATCH - GET ???
	AX = FA03h
	DX = 5945h
Return: CF clear
	DI = 4559h
	AX = 0002h
--------v-16FA04DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE - GET HOTKEY DISABLE FLAG
	AX = FA04h
	DX = 5945h
Return: CF clear
	DI = 4559h
	BL = hotkey disable flag (nonzero if hotkey disabled)
Note:	this function is a NOP under VWATCH, merely returning CF clear/DI=4559h
SeeAlso: AX=FA00h,AX=FA05h
--------v-16FA05DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE - SET HOTKEY DISABLE FLAG
	AX = FA05h
	DX = 5945h
	BL = new value of hotkey disable flag (nonzero to disable hotkey)
Return: CF clear
	DI = 4559h
Note:	this function is a NOP under VWATCH, merely returning CF clear/DI=4559h
SeeAlso: AX=FA00h,AX=FA04h
--------v-16FA06DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE, VWATCH - GET NETWORK DRIVES TEST FLAG
	AX = FA06h
	DX = 5945h
Return: CF clear
	DI = 4559h
	BL = test status
		 00h don't monitor network drives (default for VWATCH v2.1)
		 FFh monitor network drives (default for VSAFE v2.0)
	CL = ??? (only VSAFE 2.0)
SeeAlso: AX=FA07h
--------v-16FA07DX5945-----------------------
INT 16 U - PC Tools v8+ VSAFE, VWATCH - SET NETWORK DRIVES TEST FLAG
	AX = FA07h
	DX = 5945h
	BL = new state
		 00h don't monitor
		 01h monitor network drives
Return: CF clear
	DI = 4559h
Note:	VWATCH v2.1 (from PC Tools 9.0) returns CF set instead
SeeAlso: AX=FA00h,AX=FA06h
--------v-16FA08DX5945-----------------------
INT 16 U - PC Tools v9+ VWATCH v2.1 - ???
	AX = FA08h
	DX = 5945h
Return: CF clear
	DI = 4559h
	AX = ??? (0002h)
	BX = version (BH=major, BL=two-digit minor)
Note:	this function is not supported by the PC Tools 9.0 VSAFE v2.0
SeeAlso: AX=FA00h,AX=FA06h
--------U-16FE55-----------------------------
INT 16 U - PC Tools v8+ programs - GET ???
	AX = FE55h
	CX = segment of resident program or 0000h for last loaded
	DX = 0000h
Return: DX = resident code segment (unchanged if CX=0000h on entry)
	AX = ??? or 0000h
Note:	this call is supported by CPSCHED, CPTASK, DATAMON, DPROTECT, DRIVEMAP,
	  and DSKLIGHT beginning in PC Tools v8.0; programs other than CPTASK
	  seem to hook it merely to return the same AX as the CPTASK loaded
	  prior to them returned
--------U-16FEA4-----------------------------
INT 16 U - PC Tools v7+ CPSCHED/DESKTOP - RESET ???
	AX = FEA4h
Return: nothing
Note:	this function is identical to AX=FFA4h, and is implemented by the same
	  code in DESKTOP
SeeAlso: AX=FFA4h
--------U-16FEC6-----------------------------
INT 16 U - PC Tools v7+ CPSCHED - ENABLE/DISABLE CPSCHED API
	AX = FEC6h
	BL = new state (00h enabled, nonzero disabled)
Return: nothing
Desc:	specify whether CPSCHED API calls other than this one and AX=FE55h will
	  be honored
--------U-16FED3-----------------------------
INT 16 U - PC Tools v7+ CPSCHED/DESKTOP - ???
	AX = FED3h
	DS:SI -> 92-byte data record for ???
Return: ???
Note:	this function is identical to AX=FFD3h, and is implemented by the same
	  code in DESKTOP
SeeAlso: AX=FFD3h
--------U-16FEDC-----------------------------
INT 16 U - PC Tools v7+ CPSCHED - UNHOOK INTERRUPTS
	AX = FEDCh
Return: AX,DX destroyed
Index:	uninstall;CPSCHED
--------U-16FEEFCX0000-----------------------
INT 16 U - PC Tools v7+ CPSCHED/DESKTOP - INSTALLATION CHECK
	AX = FEEFh
	CX = 0000h
Return: CX = ABCDh if PC Tools scheduler (CPSCHED or DESKTOP) installed
	    BX = segment of resident portion
	    DX = (CPSCHED v8.0) resident CS
Note:	this function is identical to AX=FFD3h, and is implemented by the same
	  code in DESKTOP
SeeAlso: AX=FFEFh
--------U-16FEF1-----------------------------
INT 16 U - PC Tools v7 only CPSCHED/DESKTOP - ALTERNATE INSTALLATION CHECK
	AX = FEF1h
	BX = ???
Return: CX = 5555h if PC Tools scheduler (CPSCHED or DESKTOP) installed
	DX = 5555h
Note:	this function is identical to AX=FFD3h, and is implemented by the same
	  code in DESKTOP
SeeAlso: AX=FFF1h
--------K-16FF-------------------------------
INT 16 - KEYBOARD - KBUF extensions - ADD KEY TO TAIL OF KEYBOARD BUFFER
	AH = FFh
	DX = scan code
Return: AL = status
	    00h success
	    01h failure
Program: KBUF is a keyboard buffer expander by Mark Adler
SeeAlso: AH=05h
--------V-16FF-------------------------------
INT 16 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - QUERY ZOOM INTERRUPT
	AH = FFh
Return: AL = interrupt number to which BIOS keyboard handler has been relocated
	AL+1 = Zoom interrupt number
	BX = hotkey
Notes:	the default interrupts are 60h for keyboard and 61h for Zoom interrupt;
	  the default hot key is F10
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: INT 61"OPTIMA"
Index:	hotkeys;OPTIMA 1024 VGA
----------16FF--BH00-------------------------
INT 16 - FREEZE.COM - INSTALLATION CHECK
	AH = FFh
	BH = 00h
Return: BH = FFh if installed
Program: FREEZE is a PC Magazine utility
--------d-16FF70BX0000-----------------------
INT 16 U - PC Tools v8+ DRIVEMAP - INSTALLATION CHECK
	AX = FF70h
	BX = 0000h
	CX = 4C69h ('Li')
	DX = 6E6Bh ('nk')
Return: AX = 0000h
	CX = 4350h ('CP')
	DH = major version
	DL = minor version
Program: DRIVEMAP is a redirector which allows drives on computers connected
	  over the parallel or serial ports to appear as local drives
SeeAlso: AX=FF70h/BX=0001h,AX=FF70h/BX=0002h
--------d-16FF70BX0001-----------------------
INT 16 U - PC Tools v8+ DRIVEMAP - ???
	AX = FF70h
	BX = 0001h
	DL = ???
Return: AX = ???
	DH = ???
SeeAlso: AX=FF70h/BX=0000h,AX=FF70h/BX=0002h
--------d-16FF70BX0002-----------------------
INT 16 U - PC Tools v8+ DRIVEMAP - ???
	AX = FF70h
	BX = 0002h
	CX = ???
	DX = ???
Return: AX = ??? or FFFEh/FFFFh on error
	DL = ???
BUG:	DRIVEMAP will branch to random locations for BX values other than
	  those listed above for v8.0-9.0 because a) the incorrect register is
	  range-tested, resulting in BX=0003h-5CD6h being accepted as valid
	  function numbers, and b) the conditional which branches on invalid
	  function numbers jumps to the following instruction, becoming a NOP
SeeAlso: INT 2F/AX=9203h"DRIVEMAP"
Index:	installation check;DRIVEMAP
--------T-16FF80BX0000-----------------------
INT 16 U - PC Tools v8+ CPTASK - INSTALLATION CHECK
	AX = FF80h
	BX = 0000h
	CX = 0000h
	DX = 0000h
Return: CX = 5555h if installed
Program: CPTASK is a task switcher by Central Point Software
--------T-16FF80BX0001-----------------------
INT 16 U - PC Tools v8+ CPTASK - GET ???
	AX = FF80h
	BX = 0001h
	???
Return: DX:SI -> task list??? (ten entries of 70h bytes in v9.0)
	BX = ??? (PSP segment of resident code???)
--------T-16FF80BX0002-----------------------
INT 16 U - PC Tools v8+ CPTASK - GET ???
	AX = FF80h
	BX = 0002h
Return: DX:SI -> ???
--------T-16FF80BX0003-----------------------
INT 16 U - PC Tools v8+ CPTASK - GET ??? FLAGS
	AX = FF80h
	BX = 0003h
Return: AX = flags (see #0475)
SeeAlso: AX=FF80h/BX=0004h,AX=FF80h/BX=0006h

Bitfields for CPTASK flags:
Bit(s)	Description	(Table 0475)
 10	???
 13	???
 14	???
 15	???
--------T-16FF80BX0004-----------------------
INT 16 U - PC Tools v8+ CPTASK - SET ???
	AX = FF80h
	BX = 0004h
	CX = new value of ???
Return: ???
Note:	this function also sets bit 14 of the flags word returned by
	  AX=FF80h/BX=0003h
--------T-16FF80BX0005-----------------------
INT 16 U - PC Tools v8+ CPTASK - GET NUMBER OF ACTIVE TASKS???
	AX = FF80h
	BX = 0005h
Return: AX = number of active tasks???
--------T-16FF80BX0006-----------------------
INT 16 U - PC Tools v8+ CPTASK - GET AND CLEAR ??? FLAG
	AX = FF80h
	BX = 0006h
Return: AX = old state (0000h clear, 0001h set)
Note:	the tested flag is bit 13 of the flags returned by AX=FF80h/BX=0003h
--------T-16FF80BX0007-----------------------
INT 16 U - PC Tools v8+ CPTASK - ???
	AX = FF80h
	BX = 0007h
	ES:DI -> ???
	???
Return: ???
--------T-16FF80BX0008-----------------------
INT 16 U - PC Tools v8+ CPTASK - ???
	AX = FF80h
	BX = 0008h
	???
Return: ???
--------T-16FF80BX0009-----------------------
INT 16 U - PC Tools v8+ CPTASK - GET ???
	AX = FF80h
	BX = 0009h
Return: CL = ???
	CH = ??? (01h or 02h)
--------T-16FF80BX000A-----------------------
INT 16 U - PC Tools v9+ CPTASK - SET ???
	AX = FF80h
	BX = 000Ah
	DS:SI -> 128-byte buffer containing ???
--------T-16FF80BX000B-----------------------
INT 16 U - PC Tools v9+ CPTASK - SET ???
	AX = FF80h
	BX = 000Bh
	DX = index of ??? task (1-10)
--------T-16FF80BX000C-----------------------
INT 16 U - PC Tools v9+ CPTASK - SET IDLE??? DELAY
	AX = FF80h
	BX = 000Ch
	CX = new delay time in minutes
--------T-16FF80BX4350-----------------------
INT 16 U - PC Tools v8+ CPTASK - UNINSTALL
	AX = FF80h
	BX = 4350h ('CP')
	CX = 5354h ('ST')
Return: never returns; terminates all tasks and exits to program originally
	  calling CPTASK
--------U-16FF90-----------------------------
INT 16 U - PC Tools v8+ DESKTOP - ???
	AX = FF90h
	???
Return: ???
Note:	available only when popped up
--------U-16FF91-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FF91h
	???
Return: AX = 0000h
Note:	calls AX=FFFDh after ???
SeeAlso: AX=FF92h,AX=FFFDh
--------U-16FF92-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FF92h
	???
Return: AX = 0000h
Note:	like AX=FF91h, but temporarily sets ??? to 3
SeeAlso: AX=FF91h,AX=FFFDh
--------U-16FF93-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - SET ??? FLAG
	AX = FF93h
--------U-16FF94-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - SET ???
	AX = FF94h
	CX = ??? (default 0017h)
--------U-16FF95-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - SET ???
	AX = FF95h
	BX = ???
--------U-16FF96-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FF96h
	CL = ???
Return: AX = ???
--------U-16FF97-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FF97h
	DS:DX -> buffer for ??? (see #0476)
Return: ???

Format of PC Tools DESKTOP buffer:
Offset	Size	Description	(Table 0476)
 00h 48 BYTEs	???
 30h 128 BYTEs	???
--------U-16FF98-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - OPEN \DESK.OVL FILE AND SEEK TO OVERLAY
	AX = FF98h
	DX = byte offset in file of overlay header (see #0477)
Return: BX = file handle for DESK.OVL file
Desc:	open the DESK.OVL file, seek to the specified offset, read in the
	  overlay header, and seek to the offset specified by the header

Format of PC Tools DESKTOP overlay header:
Offset	Size	Description	(Table 0477)
 00h 12 BYTEs	NUL-padded ASCII overlay filename
 0Ch	DWORD	offset within DESK.OVL file of actual overlay
--------U-16FF99-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FF99h
	???
Return: ???
--------U-16FF9A-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - GET NAME OF COLOR SCHEME
	AX = FF9Ah
Return: ES:BX -> name of current color scheme
Note:	available even if not popped up
--------U-16FF9B-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - UNUSED
	AX = FF9Bh
Return: ???
Note:	sounds triple-length beep
--------T-16FF9C-----------------------------
INT 16 U - PC Tools v8+ CPTASK - SET/CLEAR ??? POINTER
	AX = FF9Ch
	BL = function
	    00h set ??? pointer
		DS:SI -> ???
	    01h clear pointer to 0000h:0000h
----------16FF9D-----------------------------
INT 16 U - PC Tools v8+ CPTASK, VSAFE - ???
	AX = FF9Dh
	ES:BX -> ??? word
Return: ???
Note:	if ES is non-zero, the word pointed at by ES:BX determines whether the
	  ??? flag is cleared (word = 0000h) or set (word is nonzero).	The
	  flag is always cleared if ES=0000h.
--------U-16FF9E-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FF9Eh
	DL = ???
	    bit 7: ???
	    bits 6-0: function number??? (00h,01h,other)
	???
Return: ???
--------U-16FFA1-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FFA1h
	???
Return: ???
Note:	same as AX=FFA2h, except ??? set to FFh
SeeAlso: AX=FFA2h
--------U-16FFA2-----------------------------
INT 16 U - PC Tools v7+ DESKTOP - ???
	AX = FFA2h
	???
Return: ???
Note:	calls AX=FFC7h (remove window) and AX=FFFDh
SeeAlso: AX=FFA1h,AX=FFC7h,AX=FFFDh
--------y-16FFA3BX0000-----------------------
INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - INSTALLATION CHECK
	AX = FFA3h
	BX = 0000h
	CX = 0000h
Return: AX = segment of resident code
	BX = 5555h
	CX = 5555h
Note:	also supported by DOS 6 UNDELETE which is licensed from PC Tools
SeeAlso: INT 21/AH=3Fh"NB.SYS",INT 21/AX=4101h,INT 2F/AX=6284h
--------y-16FFA3BX0001-----------------------
INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ???
	AX = FFA3h
	BX = 0001h
	CX = 0001h
Return: AX:BX -> ???
	CX = BX
--------y-16FFA3BX0002-----------------------
INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ???
	AX = FFA3h
	BX = 0002h
	CX = 0002h
Return: AX = ??? (0 or 1)
	CX = BX = AX
--------y-16FFA3BX0003-----------------------
INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ???
	AX = FFA3h
	BX = 0003h
	CX = 0003h
Return: AX = ??? (0 or 1)
	CX = BX = AX
--------y-16FFA3BX0004-----------------------
INT 16 U - PC Tools v7+ DATAMON - SET ??? FLAG
	AX = FFA3h
	BX = 0004h
	CX = 0004h
SeeAlso: AX=FFA3h/BX=0005h
--------y-16FFA3BX0005-----------------------
INT 16 U - PC Tools v7+ DATAMON - CLEAR ??? FLAG
	AX = FFA3h
	BX = 0005h
	CX = 0005h
SeeAlso: AX=FFA3h/BX=0004h
--------y-16FFA3BX0006-----------------------
INT 16 U - PC Tools v7+ DATAMON - SET PSP SEGMENT ???
	AX = FFA3h
	BX = 0006h
	CX = 0006h
	DX = current PSP segment as known to DOS??? or 0000h
----------16FFA3BXFFA3-----------------------
INT 16 U - PC Tools v9 DSKLIGHT - INSTALLATION CHECK
	AX = FFA3h
	BX = FFA3h
	CX = FFA3h
Return: BX = CX = 5555h if installed
		 AX = resident code segment
Program: DSKLIGHT is a TSR included with PC Tools v9+ which displays a disk-
	  access indicator on the screen; in v7 and v8, this function was
	  provided by DATAMON
Note:	DSKLIGHT chains to the previous handler if BX or CX is not FFA3h
--------U-16FFA4-----------------------------
INT 16 U - PC Tools v7-8 DESKTOP - ???
	AX = FFA4h
Return: ???
Notes:	available even when not popped up
	sets unknown flag if ??? conditions met
SeeAlso: AX=FEA4h
--------c-16FFA5CX1111-----------------------
INT 16 - PC-Cache v6+ - INSTALLATION CHECK
	AX = FFA5h
	CX = 1111h
Return: CH = 00h if installed
	    ES:DI -> internal data (see #0478)
	    CL = cache state
		01h enabled
		02h disabled
SeeAlso: INT 13/AH=27h,INT 13/AH=A0h,INT 21/AH=2Bh/CX=4358h

Format of PC-Cache internal data:
Offset	Size	Description	(Table 0478)
-1Ch 20 BYTEs	cached drive list, one byte per drive A: to T:
		each byte is either blank (20h) or drive letter (41h-54h)
 -8	BYTE	???
 -7	WORD	number of physical transfers (scaled down to 0000h-7FFFh)
 -5	WORD	number of saved transfers (scaled down to 0000h-7FFFh)
 -3   3 BYTEs	???
--------c-16FFA5CXAAAA-----------------------
INT 16 - PC-Cache v6+ - ENABLE DELAYED WRITES
	AX = FFA5h
	CX = AAAAh
Return: AX = ??? (apparently either 0000h or sectors_in_cache - 5)
SeeAlso: AX=FFA5h/CX=CCCCh
--------c-16FFA5CXCCCC-----------------------
INT 16 - PC-Cache v6+ - FLUSH CACHE AND DISABLE DELAYED WRITES
	AX = FFA5h
	CX = CCCCh
Return: AX = ??? (apparently either 0000h or sectors_in_cache - 5)
Note:	delayed writes are automatically disabled on EXECing
	  (see INT 21/AH=4Bh) a program named either WIN.CO? or DV.E??;
	  however, delayed writes are not automatically reenabled upon the
	  program's termination in v6.
SeeAlso: AX=FFA5h/CX=AAAAh,AX=FFA5h/CX=FFFFh
--------c-16FFA5CXDDDD-----------------------
INT 16 - PC-Cache v6+ - FLUSH AND DISABLE CACHE
	AX = FFA5h
	CX = DDDDh
SeeAlso: AX=FFA5h/CX=EEEEh,AX=FFA5h/CX=FFFFh
--------c-16FFA5CXEEEE-----------------------
INT 16 - PC-Cache v6+ - ENABLE CACHE
	AX = FFA5h
	CX = EEEEh
SeeAlso: AX=FFA5h/CX=DDDDh
--------c-16FFA5CXFFFF-----------------------
INT 16 - PC-Cache v6+ - FLUSH CACHE
	AX = FFA5h
	CX = FFFFh
SeeAlso: AX=FFA5h/CX=CCCCh,AX=FFA5h/CX=DDDDh,INT 13/AH=A1h
--------U-16FFA6-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET ???
	AX = FFA6h
Return: DS:SI -> ???
Note:	available only when popped up
--------U-16FFA7-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET ??? PATH
	AX = FFA7h
Return: DS:SI -> ASCIZ path (directory from which PCTools was run???)
--------U-16FFA8-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - ???
	AX = FFA8h
	DS:SI -> three consecutive ASCIZ strings for ??? (max 256 bytes total)
	???
Return: ???
Notes:	available only when popped up
	strings copied into internal buffer, among other actions
--------U-16FFA9-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET VERSION STRING
	AX = FFA9h
Return: DS:SI -> version string
--------U-16FFAA-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - ???
	AX = FFAAh
	???
Return: ???
Note:	available only when popped up
--------U-16FFAB-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET EDITOR SETTINGS???
	AX = FFABh
Return: DS:SI -> editor setting strings???
--------U-16FFAC-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ???
	AX = FFACh
	DL = ???
Note:	available only when popped up
--------U-16FFAD-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ???
	AX = FFADh
	DL = ???
--------U-16FFAE-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET ???
	AX = FFAEh
Return: AL = ???
--------U-16FFAF-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ???
	AX = FFAFh
	DL = ???
--------U-16FFB0-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ???
	AX = FFB0h
	BL = ???
--------U-16FFB1-----------------------------
INT 16 U - PC Tools v6.0-8.0 DESKTOP - ???
	AX = FFB1h
	???
Return: ???
--------U-16FFB2-----------------------------
INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET ???
	AX = FFB2h
Return: DS:SI -> ???
--------U-16FFB3-----------------------------
INT 16 U - PC Tools v5.5-8.0 DESKTOP - ???
	AX = FFB3h
	???
Return: ???
Note:	available only when popped up
--------U-16FFB4-----------------------------
INT 16 U - PC Tools v5.5-8.0 DESKTOP - SET ??? FLAG
	AX = FFB4h
Note:	available only when popped up
SeeAlso: AX=FFBBh
--------U-16FFB5-----------------------------
INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET/SET WINDOW PARAMETERS
	AX = FFB5h
	BX = window specifier (000Fh to 0019h) (see #0479)
	DX = 0000h get, nonzero = set
	ES:DI -> window parameter buffer (see #0480)
SeeAlso: AX=FFCBh

(Table 0479)
Values for PC Tools DESKTOP window specifier:
 000Fh	comm/FAX
 0014h	hotkey selection
 0015h	ASCII table
 0016h	system colors menu

Format of PC Tools DESKTOP window parameters:
Offset	Size	Description	(Table 0480)
 00h	BYTE	rows in window, not counting frame
 01h	BYTE	columns in window, not counting frame
 02h	BYTE	row number of top of window
 03h	BYTE	2*column number of left of window
 04h	BYTE	character attribute for ???
 05h	BYTE	character attribute for background/border
 06h	BYTE	character attribute for ???
 07h	DWORD	pointer to ??? on screen
 0Bh  4 BYTEs	???
 0Fh	BYTE	nonzero if window may be resized
Note:	if running in monochrome mode, character attributes at offsets 04h to
	  06h are stored unchanged, but attributes other than 07h, 0Fh, or 70h
	  are changed to 07h on reading
--------U-16FFB6-----------------------------
INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET ???
	AX = FFB6h
Return: AH = ???
	AL = ???
--------U-16FFB7-----------------------------
INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET/SET ???
	AX = FFB7h
	BX = direction
	    0000h copy to buffer
	    else  copy from buffer
	DS:SI -> 70-byte buffer with ???
Return: data copied
Note:	available only when popped up under v6.0+
--------U-16FFB8-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET/SET???
	AX = FFB8h
	BH = subfunction
	    00h get
		Return: BL = old value of ???
			CL = old value of ??? (v6.0+)
			CH = old value of ??? (v6.0+)
	    nonzero set
		BL = new value for ???
		CL = new value for ??? (v6.0+)
		CH = new value for ??? (v6.0+)
		DH = ???
		Return: AL = old value replaced by CL (v6.0+)
			AH = old value replaced by CH (v6.0+)
--------U-16FFB9-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFB9h
	???
Return: AX = ???
	CX = ???
	DS:SI -> ???
	ES:DI -> ???
--------U-16FFBA-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFBAh
	???
Return: AX = ???
Note:	available only when popped up
--------U-16FFBB-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - CLEAR ??? FLAG
	AX = FFBBh
Note:	available only when popped up
SeeAlso: AX=FFB4h
--------U-16FFBC-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - RESTORE ORIGINAL SCREEN???
	AX = FFBCh
--------U-16FFBD-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? DATABASE INDEXING MESSAGES
	AX = FFBDh
	???
Return: ???
--------U-16FFBE-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFBEh
	???
Return: ???
Note:	available only when popped up
--------U-16FFBF-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFBFh
	BX = DOS file handle to write on
	???
Return: ???
Note:	available only when popped up
--------U-16FFC0-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFC0h
	???
Return: AX = 0000h if successful
	AX = FFFFh on error
Note:	available only when popped up
--------U-16FFC1-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFC1h
	BL = ???
	ES:DI -> data structure (see #0481)
	???
Return: AX = ???
Note:	available only when popped up
SeeAlso: AX=FFC2h,AX=FFC3h

Format of PC Tools DESKTOP data structure:
Offset	Size	Description	(Table 0481)
 00h	WORD	???
 02h	WORD	???
 04h	WORD	???
 06h	WORD	???
 08h	WORD	???
 0Ah	BYTE	???
 0Bh	BYTE	??? (zero/nonzero)
---v7.1---
 0Ch	WORD	???
 0Eh	BYTE	???
 0Fh	WORD	???
 11h	WORD	???
	???
--------U-16FFC2-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFC2h
	BL = ???
	ES:DI -> data structure (see #0481)
	???
Return: AH = ???
	CX = ???
	DH = ???
	DL = ???
Note:	available only when popped up
SeeAlso: AX=FFC1h,AX=FFC3h
--------U-16FFC3-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFC3h
	BL = ???
	ES:DI -> data structure (see #0481)
	???
Return: AH = ???
	CX = ???
	DH = ???
	DL = ???
Note:	available only when popped up
SeeAlso: AX=FFC1h,AX=FFC2h
--------U-16FFC4-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ???
	AX = FFC4h
Return: AL = ???
	BX = segment of scratch space???
	CX = segment of stored screen data (section covered by window???)
	DX = segment of window parameters for ???
	ES:BP -> ???
Note:	available only when popped up in versions prior to 6.0
--------U-16FFC5-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - CHECK WHETHER DESKTOP LOADED RESIDENT
	AX = FFC5h
Return: BL = Desktop state
	    00h if nonresident
	    nonzero if loaded resident
Note:	available only when popped up; should call AX=FFEFh first to ensure
	  that DESKTOP is active
SeeAlso: AX=FFEFh,AX=FFF3h
--------U-16FFC6-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ???
	AX = FFC6h
	BL = new value for ???
--------U-16FFC7-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - REMOVE WINDOW
	AX = FFC7h
	???
Return: ???
--------U-16FFC8-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ???
	AX = FFC8h
Return: DS:SI -> ???
Note:	valid only while popped up
--------U-16FFC9-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - COPY DATA TO CLIPBOARD
	AX = FFC9h
	DS:SI -> characters to store in clipboard
	CX = size in bytes
Return: CF set on error
Notes:	available only when popped up
	while copying, bytes of 00h and 0Ah are skipped
--------U-16FFCA-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ???
	AX = FFCAh
	DX = ???
Return: AX destroyed
Note:	available only when popped up
--------U-16FFCB-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SELECT WINDOW PARAMETERS???
	AX = FFCBh
	DX = window specifier???
Return: AX destroyed
Note:	available only when popped up
SeeAlso: AX=FFB5h
--------U-16FFCC-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY ASCIZ STRING CENTERED IN WINDOW
	AX = FFCCh
	DS:SI -> ASCIZ string
Return: AX = ???
	CX = ???
	ES:DI -> address past last character displayed (v5.1/5.5)
	      -> ??? on menu bar (v6.0)
--------U-16FFCD-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFCDh
	DS:DX -> ???
Return: ???
Note:	available only when popped up
--------U-16FFCE-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ??? DELAYS
	AX = FFCEh
	CX = ???
Return: nothing???
--------U-16FFCF-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - CLOSE PRINTER/PRINT FILE
	AX = FFCFh
Note:	available only when popped up
--------U-16FFD0-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - PREPARE TO PRINT???
	AX = FFD0h
	???
Return: ???
Note:	available only when popped up
--------U-16FFD1-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY PRINT OPTIONS MENU
	AX = FFD1h
Return: BX = number of copies
	DX = destination
	    00h cancel
	    01h LPT1
	    02h LPT2
	    03h LPT3
	    04h COM1
	    05h COM2
	    06h disk file
Note:	available only when popped up
--------U-16FFD2-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFD2h
	BX = ???
Return: BL = ???
Note:	available only when popped up
--------U-16FFD3-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFD3h
	DS:SI -> 92-byte data record for ???
Return: ???
SeeAlso: AX=FED3h
--------U-16FFD4BH3C-------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - CREATE/OPEN/DELETE FILE
	AX = FFD4h
	BH = 3Ch create file (with no attributes)
	     3Dh open file
	     41h delete file
	BL = access mode
	     00h read only
	     01h write only
	     02h read/write
	DS:SI -> ASCIZ filename
Return: BX = file handle
	    0000h on error
Note:	operation is attempted in (in order) the directory from which the
	  desktop was started/run???, the directory specified with the
	  filename, X:\PCTOOLS\, and X:\
--------U-16FFD5-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFD5h
	???
Return: ???
Note:	available only when popped up
--------U-16FFD6-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFD6h
	BX = ???
	CX = ???
	DX = offset in ???
	???
Return: ???
Note:	available only when popped up
--------U-16FFD7-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFD7h
	???
Return: BL = ???
Note:	available only when popped up
--------U-16FFD8-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SAFE CREATE FILE
	AX = FFD8h
	DS:BX -> ASCIZ filename
Return: BX = file handle
	    0000h on error
Note:	pops up confirmation menu if file already exists
	only available when popped up???
--------U-16FFD9-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ???
	AX = FFD9h
Return: AX = ???
Note:	available only when popped up
--------U-16FFDA-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET NAME OF LAST FILE OPENED
	AX = FFDAh
	DS:SI -> ??? (v5.1/5.5 only)
Return: DS:SI -> filename
--------U-16FFDB-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ???
	AX = FFDBh
	BL = ???
Note:	available only when popped up
--------U-16FFDC-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - UNHOOK
	AX = FFDCh
Return: interrupt vectors 09h, 10h (v6.0+), 16h, 1Ch, and 21h restored to
	  original values
Index:	uninstall;PC Tools DESKTOP
--------U-16FFDDBX0000-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - INSTALLATION CHECK
	AX = FFDDh
	BX = 0000h
Return: CX = 5555h
	DX = 5555h if PCShell installed in resident mode
--------U-16FFDDBX0001-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - REQUEST POP-UP
	AX = FFDDh
	BX = 0001h
Return: CF clear if request successful (PCShell will pop up)
	CF set on error
SeeAlso: AX=FFDDh/BX=0003h
--------U-16FFDDBX0002-----------------------
INT 16 U - PC Tools v5.1-5.5 PCShell API - GET ???
	AX = FFDDh
	BX = 0002h
Return: AL =
	    00h ???
	    01h ???
Note:	PCShell v6.0+ displays the error message "Incorrect PCRUN version",
	  awaits a keystroke, and aborts the current process
--------U-16FFDDBX0003-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - REQUEST POP-UP
	AX = FFDDh
	BX = 0003h
SeeAlso: AX=FFDDh/BX=0001h
--------U-16FFDDBX0004-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - GET ???
	AX = FFDDh
	BX = 0004h
Return: CF clear if successful
	    DS:SI -> ???
--------U-16FFDDBX0005-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - ???
	AX = FFDDh
	BX = 0005h
	???
Return: ???
Note:	resets various variables if certain conditions are met
--------U-16FFDDBX0006-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - ???
	AX = FFDDh
	BX = 0006h
	???
Return: ???
Note:	resets various variables if certain conditions are met
--------U-16FFDDBX0007-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - SET ??? FLAG
	AX = FFDDh
	BX = 0007h
Return: CF clear if successful
SeeAlso: AX=FFDDh/BX=0008h
--------U-16FFDDBX0008-----------------------
INT 16 U - PC Tools v5.1+ PCShell API - CLEAR ??? FLAG
	AX = FFDDh
	BX = 0008h
Return: CF undefined
SeeAlso: AX=FFDDh/BX=0007h
--------U-16FFDDBX0009-----------------------
INT 16 U - PC Tools v6.0+ PCShell API - GET PCRUN PARAMETERS
	AX = FFDDh
	BX = 0009h
Return: CF clear if successful
	    DS:SI -> list of pointers (see #0482)

Format of PC Tools PCShell returned pointer list:
Offset	Size	Description	(Table 0482)
 00h	WORD	offset of WORD containing ???
 02h	WORD	offset of name of program to execute
 04h	WORD	offset of 80-byte buffer for ???
 06h	WORD	offset of buffer for ??? (length in WORD preceding buffer)
 08h	WORD	offset of buffer for ??? (length in WORD preceding buffer)
--------U-16FFDDBX000A-----------------------
INT 16 U - PC Tools v6.0+ PCRUN API - INSTALLATION CHECK
	AX = FFDDh
	BX = 000Ah
Return: CX = 5555h if running
	DX = 5555h
Note:	also sets a flag
--------U-16FFDDBX000B-----------------------
INT 16 U - PC Tools v6.0+ PCRUN API - ???
	AX = FFDDh
	BX = 000Bh
	???
Return: CX = 5555h if PCRUN active
	DX = 5555h
Note:	also clears flag set by AX=FFDDh/BX=000Ah
--------U-16FFDE-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY POPUP MENU
	AX = FFDEh
	DS:DX -> menu description (must be on a paragraph boundary)
Return: AX = ???
	    AL seems to be the number of the selected button
Note:	available only when popped up
SeeAlso: AX=FFEEh
--------U-16FFDF-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFDFh
	???
Return: ???
--------U-16FFE0-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFE0h
	CX = ???
	DX = ???
Note:	available only when popped up
--------U-16FFE1-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - BEEP
	AX = FFE1h
--------U-16FFE2-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFE2h
	DX = ???
Return: ???
Note:	available only when popped up
--------U-16FFE3-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - PRINT CHARACTER
	AX = FFE3h
	BL = character to print to currently open printer or print file
Return: CF set on error
Note:	available only when popped up
SeeAlso: INT 17/AH=00h
--------U-16FFE4-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFE4h
	DX = segment of ???
Return: ???
Note:	available only when popped up
--------U-16FFE5-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - POP UP FILE SELECTION MENU
	AX = FFE5h
	DS:SI -> ASCIZ wildcard filespec followed by ASCIZ menu title
	DX = segment of window parameters???
Return: AX = DOS file handle for file
		DS:DX -> filename???
		 FFFFh if function cancelled by user
Note:	available only when popped up
SeeAlso: AX=FFDAh
--------U-16FFE6-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - CHECK FOR AND GET KEYSTROKE
	AX = FFE6h
Return: AX = 0000h if no key available
	     else  BIOS keycode
Notes:	available only when popped up
	invokes INT 28 idle interrupt before checking for key
--------U-16FFE7-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFE7h
	BX = segment of ???
Return: ???
Note:	available only when popped up
--------U-16FFE8-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY NUMBER
	AX = FFE8h
	CX = number
	DH = attribute
	DS:SI -> destination for ASCII number
Return: DS:SI buffer filled in with alternating characters and attributes
--------U-16FFE9-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET FILE LIST???
	AX = FFE9h
Return: BX = segment of file/directory list (14 bytes per file, NUL-padded)
Note:	available only when popped up
--------U-16FFEA-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY COUNTED STRING
	AX = FFEAh
	DS:SI -> counted string (count byte followed by string)
Return: ???
Note:	available only when popped up
--------U-16FFEB-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFEBh
	???
Return: ???
--------U-16FFEC-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET KEY
	AX = FFECh
	DS:SI -> FAR routine to ???
	BX = ???
	???
Return: AX = keystroke
		 FFFFh if F10 pressed to go to menu
Notes:	available only when popped up
	invokes INT 28 while waiting for keystroke
	F10 is hotkey to Desktop menu
Index:	hotkeys;PC Tools DESKTOP
--------U-16FFED-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ???
	AX = FFEDh
Return: AX = ???
Note:	available only when popped up
--------U-16FFEE-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DEFINE PULLDOWN MENUS
	AX = FFEEh
	DS:SI -> pulldown menu system description (see #0483)
Return: AX destroyed
Notes:	available only when popped up
	if the accessory does not need any menu items of its own, it should
	  call AX=FFFAh instead
SeeAlso: AX=FFF7h,AX=FFFAh

Format of PC Tools DESKTOP pulldown menu system description:
Offset	Size	Description	(Table 0483)
 00h	WORD	offset of menu bar contents (counted string)
 02h	WORD	number of items on menu bar
 04h 10 BYTEs	scan codes for hotkeying to each of up to ten menu items
 0Eh 10 BYTEs	which character to highlight in each menu item (01h=first)
 18h	WORD	offset of first menu definition (see #0484)
 1Ah	WORD	offset of second menu definition
	...

Format of PC Tools DESKTOP menu definition:
Offset	Size	Description	(Table 0484)
 00h	WORD	offset of menu contents (see #0485)
 02h	WORD	number of entries in menu
 04h	for each entry:
		Offset	Size	Description
		 00h	BYTE	scancode of Alt-key to invoke entry
		 01h	BYTE	character to highlight (01h=first, etc)
		 02h	WORD	offset of FAR routine to handle selection

Format of PC Tools DESKTOP menu contents:
Offset	Size	Description	(Table 0485)
 00h	BYTE	number of lines in menu
 01h	BYTE	width of menu
 02h  N BYTEs	counted strings, one for each line in menu
--------U-16FFEFCX0000-----------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - INSTALLATION CHECK
	AX = FFEFh
	CX = 0000h
Return: CX = ABCDh if PC Tools DESKTOP.EXE installed
	    BX = segment of resident portion
	    AX = ??? (v5.1/5.5 only)
SeeAlso: AX=FEEFh,AX=FFC5h,AX=FFF3h
--------U-16FFF0-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ???
	AX = FFF0h
	DX = ???
Return: AX destroyed
Note:	available only when popped up
--------U-16FFF1BX0000-----------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ALTERNATE INSTALLATION CHECK
	AX = FFF1h
	BX = 0000h  leave ??? flag as is
	    nonzero set ??? flag
Return: CX = 5555h if installed
	DX = 5555h
--------U-16FFF2-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY HELP LINE
	AX = FFF2h
	DS:SI -> ASCIZ function key label string (each label preceded by '[')
		or help text
Return: AX destroyed
Notes:	available only when popped up
	if the specified string does not start with '[', it is displayed
	  centered on the bottom line, else the function key labels are shown
--------U-16FFF3-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - PREPARE TO UNLOAD RESIDENT DESKTOP
	AX = FFF3h
Note:	releases any EMS being used; restores video mode, page, and cursor
	  shape; and restores interrupt vectors
SeeAlso: AX=FFC5h,AX=FFEFh
Index:	uninstall;PC Tools DESKTOP
--------U-16FFF4-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - ???
	AX = FFF4h
	???
Return: ???
Note:	available only when popped up
SeeAlso: AX=FFF6h
--------U-16FFF5-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET SCREEN ATTRIBUTE ARRAY
	AX = FFF5h
Return: ES:BX -> screen attributes data structure (see #0486)
	AL = ??? (v6.0+)

Format of PC Tools DESKTOP attribute data structure:
Offset	Size	Description	(Table 0486)
 -1	BYTE	attribute for desktop background
 00h	BYTE	attribute for normal characters on desktop menu
 01h	BYTE	attribute for highlighted characters on desktop menu
 02h  5 BYTEs	???
 07h	BYTE	attribute for dialog boxes
 08h 15 BYTEs	???
 17h	BYTE	attribute for message boxes
--------U-16FFF6-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - INVOKE NOTEPAD EDITOR
	AX = FFF6h
	DS = segment of editor buffer structure (see #0487)
	BX = ???
	DX = segment of window parameters structure (see #0480)
Return: ???
Note:	available only when popped up
SeeAlso: AX=FFF4h

Format of PC Tools DESKTOP editor buffer structure:
Offset	Size	Description	(Table 0487)
 00h	WORD	offset of current cursor position in buffer segment
 02h  2 BYTEs	???
 04h	WORD	offset of beginning of file data in buffer segment
 06h 10 BYTEs	???
 10h  N BYTEs	ASCIZ name of file being edited
--------U-16FFF7-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - PROCESS MENU BAR ENTRY???
	AX = FFF7h
	DS:SI -> ???
	???
Return: ???
Notes:	available only when popped up
	performs input processing on the menu bar set up with AX=FFEEh
SeeAlso: AX=FFEEh,AX=FFFBh
--------U-16FFF8-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DRAW EMPTY WINDOW
	AX = FFF8h
	DS:0000h -> window parameters structure (see #0480)
	DS:BX -> DWORD to store address of ??? on screen
Return: ???
--------U-16FFF9-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DEFINE SCREEN REFRESH ROUTINE
	AX = FFF9h
	ES:BX -> FAR routine to redisplay the utility's window
Note:	available only when popped up
--------U-16FFFA-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - DEFINE STANDARD PULLDOWN MENUS
	AX = FFFAh
Notes:	available only when popped up
	adds the "Window" option to the "Desktop" option which is the only one
	  available when no accessories are active.  Unlike AX=FFEEh, no
	  additional menu items are added between "Desktop" and "Window"
SeeAlso: AX=FFEEh,AX=FFFBh
--------U-16FFFB-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - PROCESS STANDARD MENU BAR
	AX = FFFBh
Return: ???
Notes:	available only when popped up
	performs input processing on the standard menu bar set up with AX=FFFAh
SeeAlso: AX=FFF7h
--------U-16FFFC-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET HOTKEYS AND KEYBOARD VECTOR
	AX = FFFCh
Return: ES:BX -> hotkey table (see #0488)
	DS:DX = original INT 09 vector

Format of PC Tools DESKTOP hotkey table:
Offset	Size	Description	(Table 0488)
 00h  2 BYTEs	scancode/shift state for desktop hotkey
 02h  2 BYTEs	scancode/shift state for clipboard paste key
 04h  2 BYTEs	scancode/shift state for clipboard copy key
 06h  2 BYTEs	scancode/shift state for screen autodial key
--------U-16FFFD-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - COPY ???
	AX = FFFDh
Return: AX destroyed
Note:	copies 4000 bytes from ??? to ??? under certain circumstances
SeeAlso: AX=FF91h,AX=FF92h
--------M-16FFFE-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - SHOW MOUSE CURSOR
	AX = FFFEh
SeeAlso: AX=FFFFh,INT 33/AX=0001h
--------M-16FFFF-----------------------------
INT 16 U - PC Tools v5.1-8.0 DESKTOP - HIDE MOUSE CURSOR
	AX = FFFFh
SeeAlso: AX=FFFEh,INT 33/AX=0002h
--------P-17----DX0ABC-----------------------
INT 17 - PRINTER - LPTx v5.x INSTALLATION CHECK
	DX = 0ABCh
Return: AX = AAAAh
	DX = BAAAh
	ES = code segment of resident portion
--------P-17----DX0B90-----------------------
INT 17 - PRINTER - LPTx v6.x INSTALLATION CHECK
	DX = 0B90h
Return: DX = ABBBh
	ES = code segment of resident portion
--------P-17----DX0B91-----------------------
INT 17 - PRINTER - LPTx v7.x INSTALLATION CHECK
	DX = 0B91h
Return: DX = ABCBh
	ES = code segment of resident portion
--------P-17----DX0F5F-----------------------
INT 17 - PRINTER - LPTx v4.x INSTALLATION CHECK
	DX = 0F5Fh
Return: AX = AAAAh
	DX = F555h
	ES = code segment of resident portion
--------B-1700-------------------------------
INT 17 - PRINTER - WRITE CHARACTER
	AH = 00h
	AL = character to write
	DX = printer number (00h-02h)
Return: AH = printer status (see #0489)
SeeAlso: AH=02h,AH=84h"AX",AX=6F02h,AH=F1h,INT 16/AX=FFE3h,INT 1A/AH=11h"NEC"

Bitfields for printer status:
Bit(s)	Description	(Table 0489)
 7	not busy
 6	acknowledge
 5	out of paper
 4	selected
 3	I/O error
 2-1	unused
 0	timeout
--------B-1701-------------------------------
INT 17 - PRINTER - INITIALIZE PORT
	AH = 01h
	DX = printer number (00h-02h)
Return: AH = printer status (see #0489)
Note:	some printers report that they are ready immediately after
	  initialization when they actually are not; a more reliable result may
	  be obtained by calling AH=02h after a brief delay
SeeAlso: AH=02h,AH=FFh"PC-MOS",INT 1A/AH=10h"NEC"
--------B-1702-------------------------------
INT 17 - PRINTER - GET STATUS
	AH = 02h
	DX = printer number (00h-02h)
Return: AH = printer status (see #0489)
Note:	PRINTFIX from MS-DOS 5.0 hooks this function and always returns AH=90h
SeeAlso: AH=01h,AH=F2h,INT 1A/AH=12h"NEC"
--------P-1702--DX0000-----------------------
INT 17 - INSET - INSTALLATION CHECK
	AH = 02h
	DX = 0000h
	CX = 07C3h (1987d)
Return: CX = 07C2h (1986d) if installed
Program: INSET is a text/graphics integration program
--------b-170200BX5050-----------------------
INT 17 - Advanced Parallel Port (EPP) BIOS - INSTALLATION CHECK
	AX = 0200h
	BX = 5050h ('PP')
	CH = 45h   ('E')
	DX = printer port number (00h-02h)
Return: AH = status
	    00h if installed and port is an enhanced parallel port
		CX:AL = installed BIOS type
			 5050h:45h ('PPE') if EPP v3.0 BIOS Installed
		    4550h:50h ('EPP') if EPP v1.0 BIOS installed
		DX:BX -> far entry point to Advanced BIOS (see #0490)
	    03h if installed but specified port not supported
		CF set
Program: The Advanced Parallel Port BIOS provides support for parallel
	  port peripherals using the enhanced modes of the IEEE 1284.
SeeAlso: AH=E0h

(Table 0490)
Call EPP BIOS entry point with:
	DL = port number
	AH = function
	    00h get ???
		Return: AH = 00h if successful
			    BH = ??? (10h)
			    BL = ??? (00h)
			    ES:DI -> driver copyright string???
			    CX = I/O port base address for parallel port
			    AL = IRQ number used by port
	    01h set port mode???
		AL = ???
		    bit 0: ???
			 bit 1: ???
		    bit 2: ???
		    bits 3-7 reserved (0)
		Return: AH = 00h if successful
			CF clear if successful
			AL = ??? (destroyed?)
	    02h get port mode???
		Return: AL = ??? (01h,02h,04h,FFh)
			AH = 00h
			CF clear
	    03h interrupt control
		AL = subfunction
		    00h enable parallel port interrupts
		    01h disable parallel port interrupts
		Return: AH = status (00h,05h,06h) (see also #0491)
	    04h set ???
		Return: AH = 00h if successful
			AL destroyed
	    05h ???
		Return: AL destroyed
	    06h get ???
		Return: AL = ??? (read from port 037Bh after setting bit 5 of
				  port 037Ah)
		 07h get ???
		Return: AL = ??? (read from port 037Ch after clearing bit 5 of
				  port 037Ah)
	    08h output block of data
		ES:SI -> block of data to be sent to parallel port
		CX = number of bytes to output
		Return: AH = status (see #0491)
		Note:	clears bit 5 of port 037Ah, then does OUTSB to 037Ch
	    09h read byte of data
		Return: AH = status (see #0491)
			AL = byte read from parallel port
		Note:	sets bit 5 of port 037Ah, then does IN from 037Ch
	    0Ah read block of data
		ES:DI -> buffer for received data
		CX = number of bytes to read from paralle port
		Return: AH = status (see #0491)
			ES:DI buffer filled if successful
		Note:	sets bit 5 of port 037Ah, then does INSB from 037Ch
	    0Bh read ???
		AL = ???
		Return: AH = status (see #0491)
			AL = byte read if successful
		Note:	clears bit 5 of port 037Ah, does OUT to 037Bh, then
			  sets bit 5 of 037Ah and does IN from 037Ch
	    0Ch send ???
		AL = ??? (byte to send to port 037Bh)
		DH = ??? (byte to send to port 037Ch)
		Return: AH = status (see #0491)
		Note:	clears bit 5 of port 037Ah, does OUT to 037Bh, then
			  sets bit 5 of 037Ah and does OUT to 037Ch
	    0Dh read block ???
		AL = ??? (byte to send to port 037Bh)
		ES:DI -> buffer for received data
		CX = number of bytes to read
		Return: AH = status (see #0491)
		Note:	clears bit 5 of port 037Ah, does OUT to 037Bh, then
			  sets bit 5 of 037Ah and does INSB from 037Ch
	    0Eh write block ???
		AL = ??? (byte to send to port 037Bh)
		ES:DI -> data to be sent
		CX = number of bytes to write
		Return: AH = status (see #0491)
		Note:	clears bit 5 of port 037Ah, does OUT to 037Bh, then
			  sets bit 5 of 037Ah and does OUTSB to 037Ch
	    0Fh NOP???
		Return: AH = status (00h,03h,05h) (see #0491)
		Notes:	this function does nothing beyond checking whether
			  the desired port is supported and in the proper mode
			must call function 01h with AL=04h first to get a
			  successful return code
	    10h NOP???
		Return: AH = status (00h,03h,05h) (see #0491)
		Notes:	this function does nothing beyond checking whether
			  the desired port is supported and in the proper mode
			must call function 01h with AL=04h first to get a
			  successful return code
	    11h ???
		AL = subfunction
		    00h ???
		    01h ???
			ES:DI -> ???
		Return: AH = status (00h,03h,05h,06h) (see #0491)
	    12h ???
		AL = subfunction
		    00h get ???
		    01h increment ???
		    02h decrement ???
		Return: AH = status (00h,05h,06h,07h) (see #0491)
			AL = current state of ??? (00h,01h)
		Note:	unlike all other functions, this one does not use DL
Return: AH = status (see #0491)
	CF clear if successful
	CF set on error
Notes:	functions 03h-12h all require that function 01h have been called
	  with AL=04h first
	the above description is derived from Compaq's EPPBIOS.SYS, supplied
	  in SOFTPAQ number 0937

(Table 0491)
Values for EPP BIOS function status:
 00h	successful
 02h	invalid parameter???
 03h	unsupported parallel port
 05h	unsupported in current mode
 06h	invalid subfunction
 07h	already ???
 FFh	invalid/unsupported function
--------P-1703-------------------------------
INT 17 U - Emulaser ELTSR - INSTALL INTERRUPT HANDLERS
	AH = 03h
Return: BX = ???
	CX = ???
Program: ELTSR is the resident portion of the Emulaser PostScript emulator by
	  Vertisoft Systems, Inc.
SeeAlso: AH=04h"Emulaser",AH=0Eh,INT 1A/AH=E5h
--------c-1703-------------------------------
INT 17 - PC-MOS/386 v5.01 - PRINT SPOOLER - PRINT STRING
	AH = 03h
	DX = printer port number
	CX = number of characters to print
	DS:SI -> string
Return: AH = printer status (see #0489)
	CX = number of characters actually printed
Desc:	send an entire string of chars to the print spooler with a single call
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
SeeAlso: AH=00h,AH=01h,AH=02h,AH=FFh"PC-MOS"
----------1703--BX5A00-----------------------
INT 17 - DMP Print Spooler v2.03 - INSTALLATION CHECK
	AH = 03h
	BX = 5A00h
Return: AX = 5ACBh
	DI = 0000h
	ES = DMP code segment (also data segment)
Program: DMP is a Printer driver/spooler, by DMP (USA), available on the
	  PCTODAY disk, volume 10, March 1991
--------N-170300-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "socket"
	AX = 0300h
	CX = type of socket from  socket( domain, type, protocol )
	DX = local identifier of socket (0 - 31)
Return: AX = 0000h success
	    CX = segment of 4500 byte transfer buffer
	    DX = offset of 4500 byte transfer buffer
	   = FFFFH failure
	    CX = error code
		ENFILE	    23
Program: DOSISODE is the ISO developers environment which has been ported to
	  DOS and will run with the Waterloo TCP turned into a resident TSR.
	  Currently it allows a maximum of 6 open sockets.
Note:	this function will initialize the interface the first time it is
	  called
SeeAlso: AX=0400h"DOSISODE",AX=0600h"DOSISODE",AX=0800h"DOSISODE"
SeeAlso: AX=0A00h"DOSISODE",AX=0C00h"DOSISODE",AX=0E00h"DOSISODE"
--------P-1704-------------------------------
INT 17 U - Emulaser ELTSR - BEGIN CAPTURING OUTPUT
	AH = 04h
Note:	has no effect unless ELTSR is deactivated (see AX=0503h)
SeeAlso: AH=03h"Emulaser",AX=0503h,INT 1A/AH=E5h
--------N-170400-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "bind"
	AX = 0400h
Note:	this function just returns
SeeAlso: AX=0300h"DOSISODE",AX=0500h"DOSISODE",AX=0C00h"DOSISODE"
--------P-170500-----------------------------
INT 17 U - Emulaser ELTSR - ???
	AX = 0500h
	???
Return: AX = unload status (0001h safe to unload, 0002h not safe)
	BX = ???
	CX = PSP segment of ELTSR
	DX = activity flag (0000h disabled, 0001h capturing, 0002h ???printing)
	SI = ???
	DI = ???
SeeAlso: AH=04h,INT 1A/AH=E5h
--------N-170500-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "connect"
	AX = 0500h
SeeAlso: AX=0400h"DOSISODE",AX=0700h"DOSISODE",AX=0C00h"DOSISODE"
--------P-170501-----------------------------
INT 17 U - Emulaser ELTSR - UNHOOK INTERRUPTS
	AX = 0501h
Return: (see AX=0500h)
Note:	restores interrupt vectors without checking whether they have been
	  hooked by later programs; should only be called if ELTSR reports
	  that it is safe to unload
SeeAlso: AH=04h,AX=0500h,AX=0503h,INT 1A/AH=E5h
Index:	uninstall;Emulaser ELTSR
--------P-170502-----------------------------
INT 17 U - Emulaser ELTSR - SET ???
	AX = 0502h
	BL = Emulaser port (31h = LPT1, 32h = LPT2, 33h = LPT3)
	CL = ???
	DL = ???
Return: (see AX=0500h)
SeeAlso: AH=04h,AX=0500h,INT 1A/AH=E5h
--------P-170503-----------------------------
INT 17 U - Emulaser ELTSR - DEACTIVATE???
	AX = 0503h
Return: (see AX=0500h)
SeeAlso: AH=04h,AX=0500h,AX=0501h,INT 1A/AH=E5h
--------P-1706-------------------------------
INT 17 U - Emulaser ELTSR - ???
	AH = 06h
	???
Return: ???
SeeAlso: AH=05h,INT 1A/AH=E5h
--------N-170600-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "listen"
	AX = 0600h
Note:	this function just returns
SeeAlso: AX=0300h"DOSISODE",AX=0700h"DOSISODE",AX=0C00h"DOSISODE"
SeeAlso: AX=0E00h"DOSISODE"
--------P-1707-------------------------------
INT 17 U - Emulaser ELTSR - OPEN CAPTURE FILE
	AH = 07h
	ES:DX -> ASCIZ filename to be opened
Return: ???
Note:	new output will be appended to the specified file
SeeAlso: AH=08h,INT 1A/AH=E5h
--------N-170700-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "accept"
	AX = 0700h
Note:	this function just returns
SeeAlso: AX=0600h"DOSISODE",AX=0800h"DOSISODE",AX=0C00h"DOSISODE"
--------P-1708-------------------------------
INT 17 U - Emulaser ELTSR - CLOSE CAPTURE FILE
	AH = 08h
	???
Return: ???
Desc:	close the file previously opened by function 07h
SeeAlso: AH=07h,INT 1A/AH=E5h
--------N-170800-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "recvfrom"
	AX = 0800h
SeeAlso: AX=0500h"DOSISODE",AX=0900h"DOSISODE",AX=0A00h"DOSISODE"
--------P-1709-------------------------------
INT 17 U - Emulaser ELTSR - PRINT CAPTURE FILE???
	AH = 09h
	BX = ???
	CX = ???
	DX = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
Return: AX = status
	    00h successful
	    FFh failed
Program: ELTSR is the resident portion of the Emulaser PostScript emulator by
	  Vertisoft Systems, Inc.
Note:	this function calls through to INT 1A/AX=E401h, and thus requires
	  that either ELSPL or Disk Spool II be installed
SeeAlso: AH=0Ah,INT 1A/AX=E401h,INT 1A/AH=E5h
--------N-170900-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "sendto"
	AX = 0900h
SeeAlso: AX=0700h"DOSISODE",AX=0800h"DOSISODE",AX=0A00h"DOSISODE"
--------P-170A-------------------------------
INT 17 U - Emulaser ELTSR - SET ??? FILENAME
	AH = 0Ah
	ES:BX -> ??? buffer
	CX = length of ??? buffer
Return: ???
Note:	copies the specified name into the buffer passed to ELSPL as the
	  filename by AH=09h
SeeAlso: AH=09h,INT 1A/AH=E5h
--------N-170A00-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "select"
	AX = 0A00h
SeeAlso: AX=0800h"DOSISODE",AX=0B00h"DOSISODE",AX=0E00h"DOSISODE"
--------P-170B-------------------------------
INT 17 U - Emulaser ELTSR - GET ???
	AH = 0Bh
Return: AX:BX -> ???
SeeAlso: AH=0Ah,INT 1A/AH=E5h
--------N-170B00-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "ioctl"
	AX = 0B00h
	DX = local identifier of socket (0 - 31)
Note:	this function sets the socket into non_block mode
SeeAlso: AX=0A00h"DOSISODE",AX=0C00h"DOSISODE",AX=0E00h"DOSISODE"
--------P-170C-------------------------------
INT 17 U - Emulaser ELTSR - SET ??? FLAG
	AH = 0Ch
	???
Return: ???
SeeAlso: AH=0Bh,INT 1A/AH=E5h
--------N-170C00-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "close"
	AX = 0C00h
SeeAlso: AX=0300h"DOSISODE",AX=0500h"DOSISODE",AX=0D00h"DOSISODE"
--------P-170D-------------------------------
INT 17 U - Emulaser ELTSR - GET TRUE ScrlLk STATE
	AH = 0Dh
Return: AX = state (0000h off, 0010h on)
Desc:	determine the actual state of ScrlLk even when Emulaser is controlling
	  the ScrlLk light as its activity indicator
SeeAlso: AH=0Ch,INT 16/AH=02h,INT 1A/AH=E5h
--------N-170D00-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - "shutdown" - SHUTDOWN INTERFACE
	AX = 0D00h
Note:	this function is used to shutdown the interface
SeeAlso: AX=0C00h"DOSISODE",AX=0E00h"DOSISODE"
--------P-170E-------------------------------
INT 17 U - Emulaser ELTSR - BACKGROUND PROCESSING
	AH = 0Eh
Program: ELTSR is the resident portion of the Emulaser PostScript emulator by
	  Vertisoft Systems, Inc.
Note:	this function is called by ELTSR on every INT 08 to allow data to be
	  processed in the background, but may also be called by applications
	  to give Emulaser additional CPU time
SeeAlso: AH=0Dh,INT 1A/AH=E5h
--------N-170E00-----------------------------
INT 17 - DOSISODE to WATTCP TSR Interface - INSTALLATION CHECK
	AX = 0E00h
Return: CX = 1234h if installed
Program: DOSISODE is the ISO developers environment which has been ported to
	  DOS and will run with the Waterloo TCP turned into a resident TSR.
	  Currently it allows a maximum of 6 open sockets.
Note:	this function is used to check if the interface is loaded
SeeAlso: AX=0300h"DOSISODE",AX=0A00h"DOSISODE"
--------P-172000-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - INSTALLATION CHECK
	AX = 2000h
	BL = printer number???
Return:	AX = status (see #0492)
	BX = driver version number (BH=major,BL=minor)
	CH = ??? (00h)
	CL = ???
	DX = ??? (0100h)
Note:	also enables the remaining printer driver functions (2001h-2007h)
SeeAlso: AX=2001h,AX=2002h,AX=2003h,AX=2004h,AX=2005h,AX=2006h,AX=2007h

(Table 0492)
Values for PC Paint function status:
 0000h	successful
 0001h	invalid printer???
 0002h	???
 0003h	invalid subfunction
 0005h	driver disabled, must call function 00h first
 0009h	unknown printer error
 000Bh	printer not selected
 000Ch	printer out of paper
 000Eh	error while writing to serial printer
 000Fh	???
 0010h	invalid function number
 0011h	value out of range
--------P-172001-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - SET ??? FLAG
	AX = 2001h
	BL = printer number???
Return: AX = status (see #0492)
--------P-172002-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - GET INFORMATION
	AX = 2002h
	BL = printer number???
	CL = desired information
	    00h printer type
		Return: ES:DI -> ASCIZ printer name
	    01h paper size
		DX = size index
		Return: ES:DI -> ASCIZ paper size description
	    02h ???
		Return: BX = ???
	    03h printer information???
		DX = ???
		ES:BX -> buffer for ??? (min 134 bytes)
Return: AX = status (see #0492)
SeeAlso: AX=2000h,AX=2004h
--------P-172003-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - ???
	AX = 2003h
	ES:BX -> ???
Return: AX = status (see #0492)
SeeAlso: AX=2000h,AX=2004h
--------P-172004-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - GET ???
	AX = 2004h
	BL = printer number???
Return: AX = status (see #0492)
	ES:DI -> ???
SeeAlso: AX=2000h,AX=2003h
--------P-172005-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - ADVANCE PRINTER TO NEXT PAGE
	AX = 2005h
	BL = printer number???
Return: AX = status (see #0492)
Note:	this function also clears the flag set by AX=2001h
SeeAlso: AX=2000h,AX=2001h,AX=2006h
--------P-172006-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - ADVANCE TO NEXT PAGE & SHUT DOWN
	AX = 2006h
	BL = printer number???
Return: AX = status (see #0492)
Note:	this function also clears the flag set by AX=2001h and disables
	  functions other than AX=2000h
SeeAlso: AX=2000h,AX=2001h,AX=2005h
--------P-172007-----------------------------
INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - UNIMPLEMENTED
	AX = 2007h
Return: AX unchanged
SeeAlso: AX=2000h
--------N-172400-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - ENABLE/DISABLE API FUNCTIONS
	AX = 2400h
	DL = new state
	    00h disabled
	    01h enabled
Return: DL = 24h if installed
	DH = minor version number
	CX = network address of this machine
	AL = status (see #0493)
SeeAlso: AX=2403h,INT 16/AX=4500h

(Table 0493)
Values for NET.24 function status:
 00h	successful
 01h	timeout
 02h	header error
 03h	data error
 04h	busy
 05h	invalid parameters
--------N-172401-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, NO HANDSHAKE
	AX = 2401h
	BL = timeout in clock ticks
Return: AL = status (see #0493)
	DX:BX -> receive buffer
SeeAlso: AX=2402h,AX=2404h,AX=2408h
--------N-172402-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT BLOCK, NO HANDSHAKE
	AX = 2402h
	transmit buffer filled (see AX=2403h)
Return: AL = status (see #0493)
SeeAlso: AX=2401h,AX=2403h,AX=2404h,AX=2409h
--------N-172403-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - GET STATUS AND TRANSMISSION BUFFER
	AX = 2403h
Return: AL = status (see #0493)
	CX = number of characters in receive ring buffer
	DX:BX -> transmit buffer
SeeAlso: AX=2400h,AX=2402h
--------N-172404-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - SEND ACK BLOCK
	AX = 2404h
	BX = target address
Return: AL = status (see #0493)
SeeAlso: AX=2402h,AX=2405h
--------N-172405-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - SEND NAK BLOCK
	AX = 2405h
	BX = target address
Return: AL = status (see #0493)
SeeAlso: AX=2402h,AX=2404h
--------N-172406-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - PREPARE CHARACTER-ORIENTED RECEIVE
	AX = 2406h
Return: AL = status (see #0493)
SeeAlso: AX=2407h,AX=240Ah
--------N-172407-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE CHARACTER FROM REMOTE
	AX = 2407h
Return: AL = status (see also #0493)
	    06h end of data
	DL = received character
SeeAlso: AX=2406h
--------N-172408-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, WITH HANDSHAKE
	AX = 2408h
Return: AL = status (see also #0493)
	    06h end of data
	CX = number of bytes in receive buffer
	DX:SI -> receive buffer
SeeAlso: AX=2401h,AX=2405h,AX=2409h
--------N-172409-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT COMMAND, WITH HANDSHAKE
	AX = 2409h
	BX = target address
	CX = number of data bytes
	DL = command code to send
	DS:SI -> data bytes for command
Return: AL = status (see also #0493)
	    03h no response
		 06h remote currently unable to perform command
SeeAlso: AX=2405h,AX=2408h
--------N-17240A-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - PREPARE CHARACTER-ORIENTED TRANSMIT
	AX = 240Ah
Return: AL = status (see #0493)
SeeAlso: AX=2406h,AX=240Bh,AX=240Ch
--------N-17240B-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT SINGLE CHARACTER TO REMOTE
	AX = 240Bh
	DL = character to send
Return: AL = status (see also AX=2400h)
	    03h transmission error
	    06h write error
SeeAlso: AX=2407h,AX=240Ah,AX=240Ch
--------N-17240C-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - END CHARACTER-ORIENTED TRANSMIT
	AX = 240Ch
Return: AL = status (see also AX=2400h)
	    03h transmission error
	    06h remote breaks connection
SeeAlso: AX=240Ah,AX=240Bh
--------J-175000-----------------------------
INT 17 - AX (Japanese AT) PRINTER - SET PRINTER COUNTRY CODE
	AX = 5000h
	BX = country code
	    0001h USA (English), 0051h Japan
Return: AL = status
	    00h successful
	    01h bad country code
	    02h other error
SeeAlso: AX=5001h,AH=51h,INT 10/AX=5000h,INT 16/AX=5000h
--------J-175001-----------------------------
INT 17 - AX (Japanese AT) PRINTER - GET PRINTER COUNTRY CODE
	AX = 5001h
Return: AL = status
	    00h successful
		BX = country code
	    02h error
SeeAlso: AX=5000h,AH=51h,INT 10/AX=5001h,INT 16/AX=5001h
--------J-1751-------------------------------
INT 17 - AX (Japanese AT) PRINTER - JIS to Shift-JIS CONVERSION
	AH = 51h
	DX = 2-byte JIS code
Return: DX = shift-JIS value or 0000h on error
Note:	one of AH=51h and AH=52h converts from JIS (Japanese Industry Standard)
	  characters to Shift-JIS characters, and the other performs the
	  opposite conversion
SeeAlso: AX=5000h,AH=52h
--------J-1752-------------------------------
INT 17 - AX (Japanese AT) PRINTER - Shift-JIS to JIS CONVERSION
	AH = 52h
	DX = 2-byte shift-JIS code
Return: DX = JIS code or 0000h on error
Note:	one of AH=51h and AH=52h converts from JIS (Japanese Industry Standard)
	  characters to Shift-JIS characters, and the other performs the
	  opposite conversion
SeeAlso: AH=51h
--------V-1760-------------------------------
INT 17 - FLASHUP.COM - INSTALLATION CHECK
	AH = 60h
Return: AL = 60h
	DX = CS of resident code
Notes:	FLASHUP.COM is part of Flash-Up Windows by The Software Bottling Co.
	FLASHUP also hooks INT 10 and receives commands via INT 10/AH=09h,0Ah
	  consisting of an 80h followed by the actual command
SeeAlso: INT 10/AH=09h,INT 10/AH=0Ah
--------V-1761-------------------------------
INT 17 - SPEEDSCR.COM - INSTALLATION CHECK
	AH = 61h
Return: AL = 61h
	DX = CS of resident code
Note:	SPEEDSCR.COM is by The Software Bottling Co.
--------P-1762-------------------------------
INT 17 U - T2PS v1.0 - UNINSTALL
	AH = 62h
Return: nothing
SeeAlso: AH=63h,AH=64h,INT 05/AX=554Eh
--------P-1763-------------------------------
INT 17 U - T2PS v1.0 - SET PARAMETERS
	AH = 63h
	ES:SI -> settings (see #0494)
Program: T2PS is a shareware ASCII-to-PostScript converter by A.N.D.
	  Technologies
SeeAlso: AH=62h,AH=64h,INT 05/AX=4E57h

Format of T2PS settings:
Offset	Size	Description	(Table 0494)
 00h	WORD	LPT port number (0=LPT1, etc.)
 02h	WORD	page heigh in points
 04h	WORD	page width in points
 06h	WORD	top margin in points
 08h	WORD	bottom margin in points
 0Ah	WORD	left margin in points
 0Ch	WORD	right margin in points
 0Eh	WORD	font size in points
 10h	WORD	tab size
 12h	WORD	timeout in clock ticks
--------P-1764-------------------------------
INT 17 U - T2PS v1.0 - GET PARAMETERS
	AH = 64h
	ES:SI -> buffer for settings (see #0494)
Return: ES:SI buffer filled
SeeAlso: AH=62h,AH=63h,INT 05/AX=5053h
--------b-176F00BX0000-----------------------
INT 17 - HP Vectra - EXTENDED BIOS - "F17_INQUIRE" - INSTALLATION CHECK
	AX = 6F00h
	BX = 0000h
Return: BX = 4850h ("HP") if HP Extended BIOS printer extensions available
SeeAlso: AX=6F02h,INT 14/AX=6F00h,INT 10/AX=6F00h,INT 14/AX=6F00h
SeeAlso: INT 33/AX=6F00h,INT 6F/AH=00h"HP Vectra"
--------b-176F02-----------------------------
INT 17 - HP Vectra - EXTENDED BIOS - "F17_PUT_BUFFER" - PRINT BUFFER
	AX = 6F02h
	CX = size of buffer in bytes
	DX = port number (0-3)
	ES:DI -> buffer containing characters to be printed
Return: AH = printer status (see #0489)
	CX = number of bytes successfully printed
	---on error (AH bit 0 set)---
	    ES:DI -> next byte to be sent
	---if successful---
	    ES:DI unchanged
SeeAlso: AH=00h,AX=6F00h,INT 14/AX=6F02h
--------N-1781-------------------------------
INT 17 - Alloy NTNX, MW386 - CANCEL JOBS FOR CURRENT USER
	AH = 81h
	AL = 00h (NTNX compatibility mode)
	CL = number of jobs to cancel
Return: AL = status (see #0495)
Note:	this function cancels the last CL printouts for the current task
SeeAlso: AH=82h

(Table 0495)
Values for Alloy status:
 00h	success
 01h-7Fh warning
 80h	general failure
 81h	host overloaded (NTNX only)
 82h	module busy (NTNX only)
 83h	host busy (NTNX only)
 84h	re-entry flag set
 85h	invalid request
 86h	invalid printer
 87h	invalid process ID
 89h	access denied
 8Ah	option not available for given port type
 8Bh	option not available for given task type
 91h	printer busy
 C2h	file not found
 C3h	path not found
 C4h	file access failure
--------N-1782-------------------------------
INT 17 - Alloy NTNX, MW386 - CANCEL ALL JOBS FOR CURRENT USER
	AH = 82h
	AL = 00h (NTNX compatibility mode)
Return: AL = status (see #0495)
SeeAlso: AH=81h
--------N-1783-------------------------------
INT 17 - Alloy NTNX, MW386 - SET NUMBER OF COPIES
	AH = 83h
	AL = mode
	    00h NTNX compatibility
		CL = number of copies (max 99, default 1)
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
		CX = number of copies
Return: AL = status (see #0495)
Note:	in NTNX compatibility mode, this function only affects LPT1
--------N-1784-------------------------------
INT 17 - Alloy NTNX, MW386 - GENERATE PRINT BREAK
	AH = 84h
	AL = mode
	    00h NTNX compatibility
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
Note:	closes spool file and tells spooler to queue the print job (LPT1 only
	  under MW386 in NTNX compatibility mode)
--------J-1784-------------------------------
INT 17 - AX (Japanese AT) PRINTER - OUTPUT CHARACTER WITHOUT CONVERSION
	AH = 84h
	AL = character
	DX = printer number
Return: AH = printer status (see #0489)
SeeAlso: AH=00h,AH=85h
--------J-1785-------------------------------
INT 17 - AX (Japanese AT) PRINTER - ENABLE/DISABLE CHARACTER CONVERSION
	AH = 85h
	AL = new state (00h enabled, 01h disabled)
SeeAlso: AH=84h"AX"
--------N-1787-------------------------------
INT 17 - Alloy NTNX - SET INDOS POINTER
	AH = 87h
	AL = 00h
	CX:BX -> buffer for user-written printer drivers
Return: BX,CX destroyed
Note:	must be executed before the printer is enabled
SeeAlso: AH=8Ah
--------N-1788-------------------------------
INT 17 - Alloy NTNX, MW386 - REMOVE PRINTER FROM SPOOLER
	AH = 88h
	AL = mode
	    00h NTNX compatibility
		DX = NTNX printer number (see #0496)
	    01h MW386
		DX = MW386 printer number
Return: AH = status (see #0495)
Note:	removes specified printer from the spooler's list of printers
SeeAlso: AH=89h,AH=8Bh

(Table 0496)
Values for Alloy NTNX printer number:
 00h	host LPT1
 01h	host LPT2
 02h	host LPT3
 03h	host LPT4
 04h	host COM1
 05h	host COM2
 06h	user's logical COM2
 07h	user's terminal AUX port
 08h	user's logical COM1 (MW386 only)
--------N-1789-------------------------------
INT 17 - Alloy NTNX, MW386 - ADD PRINTER TO SPOOLER
	AH = 89h
	AL = mode
	    00h NTNX compatibility
		DX = NTNX printer number (see #0496)
	    01h MW386
		DX = MW386 printer number
Return: AL = status (see #0495)
Note:	the specified printer is added to the spooler's list of available
	  printers
SeeAlso: AH=88h,AH=8Bh
--------N-178A-------------------------------
INT 17 - Alloy NTNX - ACTIVATE USER-WRITTEN PRINTER DRIVER
	AH = 8Ah
	???
SeeAlso: AH=92h
--------N-178B-------------------------------
INT 17 - Alloy MW386 - GET PHYSICAL DEVICE NUMBER FROM NAME
	AH = 8Bh
	DS:DX -> ASCIZ printer name
Return: AL = status (see also AH=81h)
	    00h successful
		DX = physical device number
SeeAlso: AH=89h,AH=8Ch,INT 14/AH=20h"Alloy"
--------N-178C-------------------------------
INT 17 - Alloy MW386 - GET DEVICE NAME FROM PHYSICAL DEVICE NUMBER
	AH = 8Ch
	DX = physical device number
	ES:DI -> 17-byte buffer for ASCIZ device name
Return: AL = status (see also AH=81h)
	    00h successful
		ES:DI buffer filled
SeeAlso: AH=88h,AH=8Bh
--------N-178D-------------------------------
INT 17 - Alloy NTNX,MW386 - RESET SPOOLER
	AH = 8Dh
	AL = 00h
Return: AL = status (see #0495)
Notes:	clears all buffers and resets spooler to boot-up values
	MW386 supports this function for compatibility only; it is a NOP
--------N-178E-------------------------------
INT 17 - Alloy NTNX - GET INT 28 ENTRY POINT
	AH = 8Eh
	AL = 00h
Return: CX:BX -> INT 28 entry point
SeeAlso: AH=8Fh
--------N-178F-------------------------------
INT 17 - Alloy NTNX - GET DOS INTERCEPT ENTRY POINT
	AH = 8Fh
	AL = 00h
Return: CX:BX -> DOS intercept routine
SeeAlso: AH=8Eh
--------N-1790-------------------------------
INT 17 - Alloy NTNX, MW386 - SPOOL FILE BY NAME
	AH = 90h
	AL = mode
	    00h NTNX compatibility
		DL = printer code (FFh=current) (NTNX, MW386 v1.x only)
		DH = number of copies (FFh=current) (NTNX, MW386 v1.x only)
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
	CX:SI -> ASCIZ pathname
Return: AL = status (see #0495)
Note:	in mode 00h, the file is always sent to logical LPT1
SeeAlso: AH=A0h
--------N-1791-------------------------------
INT 17 - Alloy NTNX, MW386 - GET USER NUMBER AND CURRENT PRINTER
	AH = 91h
	AL = mode
	    00h NTNX compatibility
		Return: CX = user number (00h = host)
			DX = currently selected printer number (00h-08h)
	    01h MW386
		Return: CX = user number
			DX = physical dev number of currently selected printer
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
		Return: CX = user number
			DX = physical device number
Return: AL = status (see #0495)
SeeAlso: AH=8Ch
--------N-1792-------------------------------
INT 17 - Alloy NTNX - CHECK PRINTER DRIVER
	AH = 92h
	AL = 00h
	CL = 00h
Return: CL = driver state
	    01h initialized
	    80h not initialized
	AX = status (see #0495)
SeeAlso: AH=8Ah
--------N-1794-------------------------------
INT 17 - Alloy NTNX, MW386 - SELECT PRINTER
	AH = 94h
	AL = mode
	    00h NTNX compatibility
		DX = NTNX printer number (see #0496)
	    01h MW386
		DX = MW386 printer number
	    02h MW386 v2+
		BX = logical printer number
		DX = MW386 printer number
Return: AL = status (see #0495)
Note:	modes 00h and 01h affect only logical LPT1
SeeAlso: AH=8Bh,AH=95h
--------N-1795-------------------------------
INT 17 - Alloy NTNX, MW386 - GET CURRENT PRINTER
	AH = 95h
	AL = mode
	    00h NTNX compatibility
		Return: DX = NTNX printer number (see #0496)
			    (FFFFh if current printer not compatible with NTNX)
	    01h MW386
		Return: DX = MW386 printer number
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
		Return: DX = MW386 printer number (FFFFh = none)
Return: AL = status (see #0495)
Note:	modes 00h and 01h return the printer number of logical LPT1 only
SeeAlso: AH=94h
--------N-1796-------------------------------
INT 17 - Alloy NTNX - SET SERIAL PORT PARAMETERS
	AH = 96h
	AL = 00h
Note:	documentation states that this is a NOP, doing only XOR AX,AX before
	  returning
SeeAlso: INT 14/AH=24h
--------N-1797-------------------------------
INT 17 - Alloy NTNX, MW386 - SET DATA DRIVEN PRINT BREAK
	AH = 97h
	AL = mode
	    00h NTNX compatibility
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
	CH,CL,DH = three character break sequence
	DL = subfunction
	    00h set break string
	    else reset break
Return: AL = status (see #0495)
Notes:	mode 00h affects only logical LPT1
	when the break string is encountered, the spool file will be closed and
	  queued for printing automatically
	the break string is not permanently saved, and will be reset each time
	  MW386 or the user is rebooted
SeeAlso: AH=9Bh
--------N-1798-------------------------------
INT 17 - Alloy NTNX,MW386 - RESTART PRINTER
	AH = 98h
	AL = 00h
	DL = printer number (FFh=current)
Return: AL = status
	    00h successful
	    01h incorrect printer
	    02h task not found
Note:	MW386 supports this function for compatibility only; it is a NOP
--------N-1799-------------------------------
INT 17 - Alloy NTNX, MW386 - GET/SET PRINTER MODE
	AH = 99h
	AL = mode
	    00h NTNX compatibility
		DL = NTNX printer number (see #0496)
			(FFh = task's current logical LPT1)
		DH = mode (see #0497)
	    01h MW386
		DX = MW386 printer number
		CL = mode (as for DH above)
Return: AL = status (see #0495)
	DH = mode (bits 1 and 2 set as above)
	DL = printer owner's user number if not spooled

Bitfields for Alloy printer mode:
 0	get mode if 1, set mode if 0	(Table 0497)
 1	private ("attached")
 2	direct instead of spooled
 3-7	reserved (0)
--------N-179A-------------------------------
INT 17 - Alloy NTNX,MW386 - SET TAB EXPANSION
	AH = 9Ah
	AL = mode
	    00h NTNX compatibility
		DX = NTNX printer number (see #0496)
			(FFFFh = current logical LPT1)
	    01h MW386
		DX = MW386 printer number
	CL = tab length (00h = no expansion, 01h-63h = spaces per tab)
Return: AL = status (see #0495)
Note:	beginning with MW386 v2.0, tab expansion is set on a per-printer basis
	  rather than a per-user basis; NTNX and MW386 v1.x ignore DX
SeeAlso: AH=A4h
--------N-179B-------------------------------
INT 17 - Alloy NTNX,MW386 - SET PRINT BREAK TIMEOUT
	AH = 9Bh
	AL = mode
	    00h NTNX compatibility
		CX = timeout value in clock ticks (1/18 sec) (00h = never)
	    01h MW386
		CX = timeout value in seconds (00h = never)
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
		CX = timeout value in seconds (00h = never)
Return: AL = status (see #0495)
Notes:	modes 00h and 01h affect only the current logical LPT1
	if no data is sent to a printer for the specified amount of time, the
	  spool file will be closed and queued for printing automatically
SeeAlso: AH=97h
--------N-17A0-------------------------------
INT 17 - Alloy MW386 - SPOOL COPY OF FILE
	AH = A0h
	AL = mode
	    00h NTNX compatibility
		DX = ??? (NTNX, MW386 v1.x only)
	    02h MW386 v2+
		BX = logical device number
		    00h-03h = LPT1-LPT4
		    04h-07h = COM1-COM4
	CX:SI -> ASCIZ pathname
Return: AL = status (see #0495)
Notes:	makes a copy of the specified file in the spooler's directory, allowing
	  the original file to be modified or deleted while the copy is printed
	in mode 00h, the file is printed on logical LPT1
SeeAlso: AH=90h
--------N-17A4-------------------------------
INT 17 - Alloy MW386 - ENABLE/DISABLE FORM FEED
	AH = A4h
	AL = new state
	    00h form feed after end of print job disabled
	    01h form feed enabled
Return: AL = status (see #0495)
Note:	only affects the current logical LPT1
SeeAlso: AH=9Ah,AH=A6h,INT 7F/AH=05h"NTNX (Host)"
--------N-17A6-------------------------------
INT 17 - Alloy MW386 - ENABLE/DISABLE BANNER PAGE
	AH = A6h
	AL = new state
	    00h banner page before print job disabled
	    01h banner page enabled
Return: AL = status (see #0495)
Note:	only affects the current logical LPT1
SeeAlso: AH=A4h
--------N-17A7-------------------------------
INT 17 - Alloy MW386 v2+ - GET/SET SPOOL FLAGS
	AH = A7h
	AL = spool flags (see #0498)
	BX = logical device number
	    00h-03h = LPT1-LPT4
	    04h-07h = COM1-COM4
Return: AL = status (see #0495)
Note:	the documentation does not state which register contains the result of
	  a GET
SeeAlso: AH=A4h,AH=A6h

Bitfields for Alloy spool flags:
Bit(s)	Description	(Table 0498)
 0	banner page enabled (see AH=A6h)
 1	form feed enabled (see AH=A4h)
 2-6	reserved (0)
 7	set flags if 1, get flags if 0
--------N-17A8-------------------------------
INT 17 - Alloy MW386 - DEFINE TEMPORARY FILENAME
	AH = A8h
	CX:SI -> ASCIZ filename without extension (max 8 chars)
Return: AL = status (see #0495)
Note:	allows application to specify banner page filename for spool files
	  collected from the application's printer output
SeeAlso: AH=A9h
--------N-17A9-------------------------------
INT 17 - Alloy MW386 - CHANGE TEMPORARY SPOOL DRIVE
	AH = A9h
	AL = new spool drive (2=C:,3=D:,etc)
Return: AL = status (see #0495)
Note:	does not remove previous spooling directory since jobs may be pending
SeeAlso: AH=A8h
--------N-17AA-------------------------------
INT 17 - Alloy MW386 v2+ - GET REAL-TIME PRINTER STATUS
	AH = AAh
	AL = mode
	    00h NTNX
		DX = NTNX printer number (see #0496)
	    01h MW386
		DX = MW386 printer number
Return: AH = instantaneous printer status
	    00h printer ready
	    01h not ready
	    12h off line
	    13h out of paper
	    14h general device failure
	    15h device timeout
	    16h bad device number
--------N-17AF-------------------------------
INT 17 - Alloy MW386 - CHECK SPOOLER
	AH = AFh
Return: AX = 55AAh if spooler available
--------c-17C0-------------------------------
INT 17 - PC Magazine PCSpool - GET CONTROL BLOCK ADDRESS
	AH = C0h
	DX = printer port (0-3)
Return: ES:BX -> control block (see #0499)
SeeAlso: AH=C1h

Format of PCSpool control block:
Offset	Size	Description	(Table 0499)
 00h	WORD	printer number
 02h	WORD	address of printer status port
 04h	WORD	number of first record in queue
 06h	WORD	number of last record in queue
 08h	DWORD	characters already printed
 0Ch	DWORD	number of characters remaining
 10h	DWORD	pointer to dequeue buffer
 14h	DWORD	previous count of characters printed
 18h	DWORD	number of clock ticks taken to print them
 1Ch	WORD	offset of next character to output
 1Eh	WORD	offset of next character to print
 20h	WORD	pointer to spooling queue record
 22h	BYTE	current spooling status
 23h	BYTE	current printer status:
		00h OK
		01h not ready
		02h paused with message
		03h paused
		04h initializing
		FEh non-existent port
		FFh not spooled
 24h	BYTE	current control record type
 25h	WORD	observed printer speed
 27h	WORD	characters to print per service
 29h	BYTE	01h if disk write needed
 2Ah	BYTE	01h if queued data should be flushed
 2Bh	BYTE	01h to update cps status
--------c-17C1--------------------------------
INT 17 - PC Magazine PCSpool - BUILD PAUSE CONTROL RECORD
	AH = C1h
	DX = printer port (0-3)
	DS:SI -> ASCIZ string to save for display
Note:	flushes pending writes
SeeAlso: AH=C0h,AH=C2h
--------c-17C2-------------------------------
INT 17 - PC Magazine PCSpool - FLUSH PENDING WRITES
	AH = C2h
	DX = printer port (0-3)
SeeAlso: AH=C3h
--------c-17C3-------------------------------
INT 17 - PC Magazine PCSpool - CANCEL PRINTER QUEUE (FLUSH ALL QUEUED OUTPUT)
	AH = C3h
	DX = printer port (0-3)
SeeAlso: AH=C2h,AH=C7h
--------c-17C4-------------------------------
INT 17 - PC Magazine PCSpool - QUERY SPOOLER ACTIVE
	AH = C4h
Return: DI = B0BFh
	SI = segment
--------c-17C5-------------------------------
INT 17 - PC Magazine PCSpool - JOB SKIP PRINTER QUEUE
	AH = C5h
	DX = printer port (0-3)
Note:	cancels up to the pause record
--------c-17C6-------------------------------
INT 17 - PC Magazine PCSpool - CHECK PRINTER QUEUE STATUS
	AH = C6h
	DX = printer port (0-3)
Return: AX = queue status
	   0000h printer not active or at pause
	   0001h printer busy
--------c-17C7-------------------------------
INT 17 - PC Magazine PCSpool - CLOSE QUEUE
	AH = C7h
	DX = printer port (0-3)
SeeAlso: AH=C3h
--------P-17CD00-----------------------------
INT 17 - INSET - EXECUTE COMMAND STRING
	AX = CD00h
	DS:DX -> ASCIZ command string (max 80 bytes)
Return: CX = 07C2h (1986d)
Note:	user interface menus pop up after last command, unless that command
	exits INSET
--------P-17CD01-----------------------------
INT 17 - INSET - GET IMAGE SIZE
	AX = CD01h
	DS:DX -> ASCIZ name of image file
Return: AX = height in 1/720th inch
	BX = width in 1/720th inch
	CX = 07C2h (1986d)
--------P-17CD02-----------------------------
INT 17 - INSET - INITIALIZE
	AX = CD02h
Return: CX = 07C2h (1986d)
Note:	all open files are closed and the printer is reset
SeeAlso: AX=CD04h
--------P-17CD03-----------------------------
INT 17 - INSET - EXECUTE INSET MENU WITHIN OVERRIDE MODE
	AX = CD03h
Return: CX = 07C2h (1986d)
--------P-17CD04-----------------------------
INT 17 - INSET - INITIALIZE LINKED MODE
	AX = CD04h
	ES:SI -> FAR routine for linked mode (see #0500)
Return: CX = 07C2h
SeeAlso: AX=CD02h,AX=CD08h

(Table 0500)
Values INSET linked-mode routine is called with:
	AL = function
	    00h send character to printer
		BL = character to send
	    01h send string to printer
		CX = number of bytes to send
		DS:DX -> buffer containing data
	    02h move print head to horizontal starting position of image
Return:	AX = status
		 0000h success
	    0001h failure
--------P-17CD05-----------------------------
INT 17 - INSET - START MERGING IMAGE INTO TEXT
	AX = CD05h
	DS:DX -> ASCIZ name of PIX file
	CX = left margin of text in 1/720th inch
Return: AH = printer type
	    00h page-oriented (multiple images may be placed side-by-side)
	    01h line-oriented (use AX=CD06h for vertical paper movement)
	CX = 07C2h (1986d)
SeeAlso: AX=CD07h
--------P-17CD06-----------------------------
INT 17 - INSET - GRAPHICS LINE FEED
	AX = CD06h
Return: AH = completion status
	    00h image complete
	    01h image incomplete
	CX = 07C2h (1986d)
SeeAlso: AX=CD09h
--------P-17CD07-----------------------------
INT 17 - INSET - FLUSH GRAPHICS FROM MERGE BUFFER
	AX = CD07h
Return: CX = 07C2h
SeeAlso: AX=CD05h
--------P-17CD08-----------------------------
INT 17 - INSET - CANCEL LINK MODE
	AX = CD08h
Return: CX = 07C2h
SeeAlso: AX=CD04h
--------P-17CD09-----------------------------
INT 17 - INSET - ALTER TEXT LINE SPACING
	AX = CD09h
	CX = line spacing in 1/720th inch
Return: CX = 07C2h
Note:	not yet implemented, line spacing is currently fixed at 1/6 inch
SeeAlso: AX=CD06h
--------P-17CD0A-----------------------------
INT 17 - INSET - GET SETUP
	AX = CD0Ah
	DS:DX -> buffer for IN.SET data
Return: CX = 07C2h
--------P-17CD0B-----------------------------
INT 17 - INSET - START GETTING SCALED IMAGE
	AX = CD0Bh
	DS:SI -> ASCIZ pathname of .PIX file
	BX = number of bitplanes
	CX = number of rows in output bitmap
	DX = number of columns in output bitmap
Return: AX = status
	    0000h OK
	    FFFFh error
Note:	image is returned in strips by repeated calls to AX=CD0Ch
--------P-17CD0C-----------------------------
INT 17 - INSET - GET NEXT IMAGE STRIP
	AX = CD0Ch
Return: AX = status
	    0000h OK but not complete
	    0001h OK and image complete
	    FFFFh error
	DS:SI -> buffer (max 4K) for bit map strip
	CX = start row
	DX = number of rows
	BX = offset in bytes between bit planes
Note:	buffer may be overwritten by subsequent calls
SeeAlso: AX=CD0Bh
--------P-17E0-------------------------------
INT 17 - EPP BIOS - INSTALLATION CHECK
	AH = E0h
Return: ??? (AH <> E0h if installed ???)
SeeAlso: AX=0200h"EPP",AH=E1h,AH=E2h
--------P-17E1-------------------------------
INT 17 - EPP BIOS - DISABLE EPP
	AH = E1h
	???
Return: ???
SeeAlso: AX=0200h"EPP",AH=E0h,AH=E2h
--------P-17E2-------------------------------
INT 17 - EPP BIOS - ENABLE EPP
	AH = E2h
	???
Return: ???
SeeAlso: AX=0200h"EPP",AH=E0h,AH=E1h
--------P-17F0-------------------------------
INT 17 - NorthNet Jetstream API - INSTALLATION CHECK
	AH = F0h
	DX = printer port (0-3)
Return: AX = 0001h Jetstream present
	     else  non-Jetstream port
Note:	NorthNet Jetstream is a high-performance DMA-driven parallel card able
	  to drive printers at up to 80000 characters per second
--------P-17F1-------------------------------
INT 17 - NorthNet Jetstream API - PRINT DATA BUFFER
	AH = F1h
	CX = data buffer length
	DX = printer port (0-3)
	DS:SI -> data buffer
Return: AX = status
	    0000h printer not ready (see also AH=02h)
	    other printing started
SeeAlso: AH=00h,AH=F2h,AH=F3h,AH=F5h
--------P-17F2-------------------------------
INT 17 - NorthNet Jetstream API - GET PRINT PROGRESS STATUS
	AH = F2h
	DX = printer port (0-3)
Return: AX = status
	    0000h prior print request finished
	    other number of characters left to print
SeeAlso: AH=02h,AH=F1h,AH=F3h
--------P-17F3-------------------------------
INT 17 - NorthNet Jetstream API - ABORT PRINT OPERATION
	AH = F3h
	DX = printer port (0-3)
Return: AX = number of unprinted characters due to abort
SeeAlso: AH=F1h,AH=F4h
--------P-17F4-------------------------------
INT 17 - NorthNet Jetstream API - SET COMPLETION (POST) ADDRESS
	AH = F4h
	DX = printer port (0-3)
	DS:DS -> FAR post address (called with interrupts on)
SeeAlso: AH=F1h,AH=F3h
--------P-17F5-------------------------------
INT 17 - NorthNet Jetstream API - PRINT DATA BUFFER FROM EXTENDED MEMORY
	AH = F5h
	CX = data buffer length
	DX = printer port (0-3)
	DS:SI -> data buffer (32-bit physical address)
Return: AX = status
	    0000h printer not ready (see also AH=02h)
	    other printing started
SeeAlso: AH=F1h
--------c-17FF--BX0000-----------------------
INT 17 U - PC-MOS/386 v5.01 - PRINT SPOOLER - CLOSE SPOOL FILE
	AH = FFh
	BX = 0000h
	CX = 0000h
	DX = printer port number
Return: AH = printer status (see #0489 at AH=00h)
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
	  operating system by The Software Link, Inc.
Desc:	close the spool file immediately instead of waiting for the close time
	  to elapse
SeeAlso: AH=01h,AH=03h"PC-MOS"
--------B-18---------------------------------
INT 18 - DISKLESS BOOT HOOK (START CASSETTE BASIC)
Desc:	called when there is no bootable disk available to the system
Notes:	only PCs produced by IBM contain BASIC in ROM, so the action is
	  unpredictable on compatibles; this interrupt often reboots the
	  system, and often has no effect at all
	network cards with their own BIOS can hook this interrupt to allow
	  a diskless boot off the network (even when a hard disk is present
	  if none of the partitions is marked as the boot partition)
SeeAlso: INT 2F/AX=4A06h,INT 86"NetBIOS"
--------J-1800-------------------------------
INT 18 - NEC PC-9800 series - KEYBOARD - GET KEYSTROKE
	AH = 00h
Return: AX = keystroke
SeeAlso: AH=01h,AH=02h,INT 16/AH=00h
--------J-1801-------------------------------
INT 18 - NEC PC-9800 series - KEYBOARD - CHECK FOR KEYSTROKE
	AH = 01h
Return: BH = status
	    00h no keystrokes available
	    01h keystroke available
		AX = keystroke
SeeAlso: AH=00h,AH=02h,INT 16/AH=01h
--------J-1802-------------------------------
INT 18 - NEC PC-9800 series - KEYBOARD - GET SHIFT STATUS
	AH = 02h
Return: AL = shift flags
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,INT 16/AH=02h
--------J-1803-------------------------------
INT 18 - NEC PC-9800 series - KEYBOARD - INITIALIZE
	AH = 03h
	???
Return: ???
SeeAlso: AH=00h,AH=04h
--------J-1804-------------------------------
INT 18 - NEC PC-9800 series - KEYBOARD - KEY PRESSED
	AH = 04h
	???
Return: ???
Note:	details are not available at this time
SeeAlso: AH=00h,AH=02h,INT 16/AH=00h,INT 16/AH=01h,INT 16/AH=02h
--------J-18---------------------------------
INT 18 - NEC PC-9800 series - VIDEO
	AH = function
	    0Ah set video mode
	    0Bh get video mode
	    0Ch start text screen display
	    0Dh end text screen display
	    0Eh set single display area
	    0Fh set multiple display area
	    10h set cursor shape
	    11h display cursor
	    12h terminate cursor
	    13h set cursor position
	    14h read font patter
	    16h initialize text video RAM
	    1Ah define user character
	???
Return: ???
Notes:	details are not available at this time
	text video RAM is located at segments A000h (characters) and A200h
	  (attributes)
----------185350BX4849-----------------------
INT 18 - SPHINX C-- - WB.COM - API
	AX = 5350h ('SP')
	BX = 4849h ('HI')
	CX = 4E58h ('NX')
	DH = function
	    01h set ???
		DL = ???
	    02h get ???
		Return: DL = ???
	    03h get ???
		Return: ES:DI -> ??? data buffer
	    06h ???
Return: AX = 7370h ('sp') if installed
	BX = 6869h ('hi') if installed
	CX = 6E78h ('nx') if installed
Program: SPHINX C-- is a shareware compiler by Peter Cellik for a language
	  which is a cross between C and assembler; WB.COM is the driver which
	  launches the WorkBench
--------s-186900-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET STATUS
	AX = 6900h
Return: AX = amount of DRAM on card or 0000h if GUS not available
Program: YEA_GUS is a driver for the Graphics Ultra Sound which hooks INT 18h
	  and then shells out the the program requiring its services
SeeAlso: AX=6901h,AX=690Ah,AX=690Bh
--------s-186901-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RESET
	AX = 6901h
	BX = number of active voices (14-32)
Return: nothing
SeeAlso: AX=6900h
--------s-186902-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET VOLUME FOR SPECIFIC VOICE
	AX = 6902h
	BX = voice number (00h-1Fh)
	CX = linear volume (0000h-01FFh)
Return: nothing
SeeAlso: AX=6900h,AX=6903h,AX=6904h,AX=6909h,AX=690Ah
--------s-186903-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET FREQUENCY FOR VOICE
	AX = 6903h
	BX = voice number (00h-1Fh)
	CX = frequency in Hz (0-44100)
Return: nothing
SeeAlso: AX=6902h,AX=6904h
--------s-186904-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET LEFT/RIGHT BALANCE
	AX = 6904h
	BX = voice number (00h-1Fh)
	CX = balance (0 = left, 7 = even, 15 = right)
Return: nothing
SeeAlso: AX=6902h,AX=6903h
--------s-186905-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - PLAY MUSIC
	AX = 6905h
	BL = voice number
	BH = sample type (0 = 8-bit, 1 = 16-bit)
	CL = looping type (0 = none, 1 = forward, 2 = back and forth)
	CH:DI = 20-bit starting address for voice data
	DL:SI = 20-bit address for loop start
	DH:BP = 20-bit address for loop end
SeeAlso: AX=6903h,AX=6906h,AX=690Bh
--------s-186906-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - LOAD SOUND DATA
	AX = 6906h
	BL = data format (1 = twos-complement, 0 = not)
	BH = sample type (0 = 8-bit, 1 = 16-bit)
	CX = number of bytes to send
	ES:SI -> buffer containing data
	DL:DI = 20-bit address of GUS DRAM at which to load sound data
SeeAlso: AX=6900h,AX=6905h,AX=690Ch
--------s-186907-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - STOP VOICE
	AX = 6907h
	BX = voice number (00h-1Fh)
Return: nothing
SeeAlso: AX=6908h,AX=690Dh
--------s-186908-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET VOICE END
	AX = 6908h
	BX = voice number (00h-1Fh)
	CL:DX = 20-bit ending address
Return: nothing
SeeAlso: AX=690Bh
--------s-186909-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RAMP VOLUME
	AX = 6909h
	BL = voice number (00h-1Fh)
	BH = looping type (0 = none, 1 = forward, 2 = back and forth)
	CX = starting volume
	DX = ending volume
	DI:SI = time
Return: nothing
SeeAlso: AX=6902h,AX=690Ah
--------s-18690A-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET VOLUME
	AX = 690Ah
	BX = voice number (00h-1Fh)
Return: AX = current non-linear volume for voice
SeeAlso: AX=6902h,AX=6909h
--------s-18690B-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET POSITION
	AX = 690Bh
	BX = voice number
Return: BX:AX = 20-bit address at which voice is playing
SeeAlso: AX=6900h,AX=6905h,AX=6908h
--------s-18690C-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SAVE SOUND DATA
	AX = 690Ch
	BL = data format (1 = twos-complement, 0 = not)
	BH = sample type (0 = 8-bit, 1 = 16-bit)
	CX = number of bytes to get
	ES:SI -> buffer for retrieved data
	DL:DI = 20-bit address in GUS DRAM from which to read voice data
Return: nothing
SeeAlso: AX=6906h
--------s-18690D-----------------------------
INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RESTART VOICE
	AX = 690Dh
	BX = voice
	CX = sample type (0 = 8-bit, 1 = 16-bit)
	DX = looping type (0 = none, 1 = forward, 2 = back and forth)
Return: CX = balance value
SeeAlso: AX=6907h,AX=6908h
--------s-188000-----------------------------
INT 18 - Gravis Ultra Sound EURO_MOD.EXE - INITIALIZE
	AX = 8000h
Program: EURO_MOD is a .MOD file player for the Gravis Ultra Sound which hooks
	  INT 18h and then shells out to the program requiring its services
SeeAlso: AX=8001h,AX=8004h
--------s-188001-----------------------------
INT 18 - Gravis Ultra Sound EURO_MOD.EXE - LOAD .MOD FILE
	AX = 8001h
	BX:CX -> ASCIZ filename
SeeAlso: AX=8000h,AX=8002h
--------s-188002-----------------------------
INT 18 - Gravis Ultra Sound EURO_MOD.EXE - PLAY .MOD FILE
	AX = 8002h
SeeAlso: AX=8002h,AX=8003h
--------s-188003-----------------------------
INT 18 - Gravis Ultra Sound EURO_MOD.EXE - STOP PLAYING
	AX = 8003h
--------s-188004-----------------------------
INT 18 - Gravis Ultra Sound EURO_MOD.EXE - SHUTDOWN
	AX = 8004h
SeeAlso: AX=8000h,AX=8003h
--------B-19---------------------------------
INT 19 - SYSTEM - BOOTSTRAP LOADER
Desc:	This interrupt reboots the system without clearing memory or restoring
	  interrupt vectors.  Because interrupt vectors are preserved, this
	  interrupt usually causes a system hang if any TSRs have hooked
	  vectors from 00h through 1Ch, particularly INT 08.
Notes:	Usually, the BIOS will try to read sector 1, head 0, track 0 from drive
	  A: to 0000h:7C00h.  If this fails, and a hard disk is installed, the
	  BIOS will read sector 1, head 0, track 0 of the first hard disk.
	  This sector should contain a master bootstrap loader and a partition
	  table (see #0502).  After loading the master boot sector at
	  0000h:7C00h, the master bootstrap loader is given control.  It will
	  scan the partition table for an active partition, and will then load
	  the operating system's bootstrap loader (contained in the first
	  sector of the active partition) and give it control.
	true IBM PCs and most clones issue an INT 18 if neither floppy nor hard
	  disk have a valid boot sector
	to accomplish a warm boot equivalent to Ctrl-Alt-Del, store 1234h in
	  0040h:0072h and jump to FFFFh:0000h.	For a cold boot equivalent to
	  a reset, store 0000h at 0040h:0072h before jumping.
	VDISK.SYS hooks this interrupt to allow applications to find out how
	  much extended memory has been used by VDISKs (see #0501).  DOS 3.3+
	  PRINT hooks INT 19 but does not set up a correct VDISK header block
	  at the beginning of its INT 19 handler segment, thus causing some
	  programs to overwrite extended memory which is already in use.
	the default handler is at F000h:E6F2h for 100% compatible BIOSes
	MS-DOS 3.2+ hangs on booting (even from floppy) if the hard disk
	  contains extended partitions which point at each other in a loop,
	  since it will never find the end of the linked list of extended
	  partitions
	under Windows Real and Enhanced modes, calling INT 19 will hang the
	  system in the same was as under bare DOS; under Windows Standard
	  mode, INT 19 will successfully perform a cold reboot as it appears
	  to have been redirected to a MOV AL,0FEh/OUT 64h,AL sequence
SeeAlso: INT 14/AH=17h,INT 18,INT 5B"PC Cluster"

Format of VDISK header block (at beginning of INT 19 handler's segment):
Offset	Size	Description	(Table 0501)
 00h 18 BYTEs	n/a (for VDISK.SYS, the device driver header)
 12h 11 BYTEs	signature string "VDISK	 Vn.m" for VDISK.SYS version n.m
 1Dh 15 BYTEs	n/a
 2Ch  3 BYTEs	linear address of first byte of available extended memory

Format of hard disk master boot sector:
Offset	Size	Description	(Table 0502)
 00h 446 BYTEs	Master bootstrap loader code
1BEh 16 BYTEs	partition record for partition 1 (see #0503)
1CEh 16 BYTEs	partition record for partition 2
1DEh 16 BYTEs	partition record for partition 3
1EEh 16 BYTEs	partition record for partition 4
1FEh	WORD	signature, AA55h indicates valid boot block

Format of partition record:
Offset	Size	Description	(Table 0503)
 00h	BYTE	boot indicator (80h = active partition)
 01h	BYTE	partition start head
 02h	BYTE	partition start sector (bits 0-5)
 03h	BYTE	partition start track (bits 8,9 in bits 6,7 of sector)
 04h	BYTE	operating system indicator (see #0504)
 05h	BYTE	partition end head
 06h	BYTE	partition end sector (bits 0-5)
 07h	BYTE	partition end track (bits 8,9 in bits 6,7 of sector)
 08h	DWORD	sectors preceding partition
 0Ch	DWORD	length of partition in sectors
SeeAlso: #0502

(Table 0504)
Values for operating system indicator:
 00h	empty
 01h	DOS 12-bit FAT
 02h	XENIX root file system
 03h	XENIX /usr file system (obsolete)
 04h	DOS 16-bit FAT (up to 32M)
 05h	DOS 3.3+ extended partition
 06h	DOS 3.31+ Large File System (16-bit FAT, over 32M)
 07h	QNX
 07h	OS/2 HPFS
 07h	Windows NT NTFS
 07h	Advanced Unix
 08h	AIX bootable partition, SplitDrive
 09h	AIX data partition
 09h	Coherent filesystem
 0Ah	OS/2 Boot Manager
 0Ah	OPUS
 0Ah	Coherent swap partition
 10h	OPUS
 11h	OS/2 Boot Manager hidden 12-bit FAT partition
 12h	Compaq Diagnostics partition
 14h	(resulted from using Novell DOS 7.0 FDISK to delete Linux Native part)
 14h	OS/2 Boot Manager hidden sub-32M 16-bit FAT partition
 16h	OS/2 Boot Manager hidden over-32M 16-bit FAT partition
 17h	OS/2 Boot Manager hidden HPFS partition
 18h	AST special Windows swap file
 24h	NEC MS-DOS 3.x
 3Ch	PowerQuest PartitionMagic recovery partition
 40h	VENIX 80286
 42h	SFS (Secure File System) by Peter Gutmann
 50h	Disk Manager, read-only partition
 51h	Disk Manager, read/write partition
 51h	Novell???
 52h	CP/M
 52h	Microport System V/386
 56h	GoldenBow VFeature
 61h	SpeedStor
 63h	Unix SysV/386, 386/ix
 63h	Mach, MtXinu BSD 4.3 on Mach
 63h	GNU HURD
 64h	Novell NetWare
 65h	Novell NetWare (3.11)
 70h	DiskSecure Multi-Boot
 75h	PC/IX
 80h	Minix v1.1 - 1.4a
 81h	Minix v1.4b+
 81h	Linux
 81h	Mitac Advanced Disk Manager
 82h	Linux Swap partition
 83h	Linux native file system (ext2fs/xiafs)
 84h	OS/2-renumbered type 04h partition (related to hiding DOS C: drive)
 93h	Amoeba file system
 94h	Amoeba bad block table
 A5h	FreeBSD
 B7h	BSDI file system (secondarily swap)
 B8h	BSDI swap partition (secondarily file system)
 C1h	DR-DOS 6.0 LOGIN.EXE-secured 12-bit FAT partition
 C4h	DR-DOS 6.0 LOGIN.EXE-secured 16-bit FAT partition
 C6h	DR-DOS 6.0 LOGIN.EXE-secured Huge partition
 C7h	Cyrnix Boot
 DBh	CP/M, Concurrent CP/M, Concurrent DOS
 DBh	CTOS (Convergent Technologies OS)
 E1h	SpeedStor 12-bit FAT extended partition
 E4h	SpeedStor 16-bit FAT extended partition
 F2h	DOS 3.3+ secondary
 F4h	SpeedStor
 FEh	LANstep
 FFh	Xenix bad block table
SeeAlso: #0503
--------B-1A00-------------------------------
INT 1A - TIME - GET SYSTEM TIME
	AH = 00h
Return: CX:DX = number of clock ticks since midnight
	AL = midnight flag, nonzero if midnight passed since time last read
Notes:	there are approximately 18.2 clock ticks per second, 1800B0h per 24 hrs
	IBM and many clone BIOSes set the flag for AL rather than incrementing
	  it, leading to loss of a day if two consecutive midnights pass
	  without a request for the time (e.g. if the system is on but idle)
	since the midnight flag is cleared, if an application calls this
	  function after midnight before DOS does, DOS will not receive the
	  midnight flag and will fail to advance the date
SeeAlso: AH=01h,AH=02h,INT 21/AH=2Ch,INT 62/AX=0099h
--------B-1A01-------------------------------
INT 1A - TIME - SET SYSTEM TIME
	AH = 01h
	CX:DX = number of clock ticks since midnight
SeeAlso: AH=00h,AH=03h,INT 21/AH=2Dh
--------B-1A02-------------------------------
INT 1A - TIME - GET REAL-TIME CLOCK TIME (AT,XT286,PS)
	AH = 02h
Return: CF clear if successful
	    CH = hour (BCD)
	    CL = minutes (BCD)
	    DH = seconds (BCD)
	    DL = daylight savings flag (00h standard time, 01h daylight time)
	CF set on error (i.e. clock not running or in middle of update)
Note:	this function is also supported by the Sperry PC, which predates the
	  IBM AT; the data is returned in binary rather than BCD on the Sperry,
	  and DL is always 00h
SeeAlso: AH=00h
--------B-1A03-------------------------------
INT 1A - TIME - SET REAL-TIME CLOCK TIME (AT,XT286,PS)
	AH = 03h
	CH = hour (BCD)
	CL = minutes (BCD)
	DH = seconds (BCD)
	DL = daylight savings flag (00h standard time, 01h daylight time)
Note:	this function is also supported by the Sperry PC, which predates the
	  IBM AT; the data is specified in binary rather than BCD on the
	  Sperry, and the value of DL is ignored
SeeAlso: AH=01h
--------B-1A04-------------------------------
INT 1A - TIME - GET REAL-TIME CLOCK DATE (AT,XT286,PS)
	AH = 04h
Return: CF clear if successful
	    CH = century (BCD)
	    CL = year (BCD)
	    DH = month (BCD)
	    DL = day (BCD)
	CF set on error
SeeAlso: AH=02h,AH=04h"Sperry",AH=05h,INT 21/AH=2Ah
--------b-1A04-------------------------------
INT 1A - Sperry PC - GET REAL-TIME CLOCK DATE
	AH = 04h
Return: CF clear if successful
	    CL = year-1980
	    DH = month (binary)
	    DL = day (binary)
	CF set on error
SeeAlso: AH=02h,AH=04h,AH=05h"Sperry",INT 21/AH=2Ah
--------B-1A05-------------------------------
INT 1A - TIME - SET REAL-TIME CLOCK DATE (AT,XT286,PS)
	AH = 05h
	CH = century (BCD)
	CL = year (BCD)
	DH = month (BCD)
	DL = day (BCD)
SeeAlso: AH=04h,INT 21/AH=2Bh
--------b-1A04-------------------------------
INT 1A - Sperry PC - SET REAL-TIME CLOCK DATE
	AH = 04h
	CL = year-1980
	DH = month (binary)
	DL = day (binary)
SeeAlso: AH=02h,AH=04h"Sperry",AH=05h,INT 21/AH=2Bh
--------B-1A06-------------------------------
INT 1A - TIME - SET ALARM (AT,XT286,PS)
	AH = 06h
	CH = hour (BCD)
	CL = minutes (BCD)
	DH = seconds (BCD)
Return: CF set on error (alarm already set or clock stopped for update)
	CF clear if successful
Notes:	the alarm occurs every 24 hours until turned off, invoking INT 4A each
	  time
	the BIOS does not check for invalid values for the time, so the CMOS
	  clock chip's "don't care" setting (any values between C0h and FFh)
	  may be used for any or all three part.  For example, to create an
	  alarm once a minute, every minute, call with CH=C0h, CL=C0h, and
	  DH=00h.
SeeAlso: AH=07h,INT 4A
--------B-1A07-------------------------------
INT 1A - TIME - CANCEL ALARM (AT,XT286,PS)
	AH = 07h
Return: alarm disabled
Note:	does not disable the real-time clock's IRQ
SeeAlso: AH=06h,INT 70
--------B-1A08-------------------------------
INT 1A - TIME - SET RTC ACTIVATED POWER ON MODE (CONVERTIBLE)
	AH = 08h
	CH = hours in BCD
	CL = minutes in BCD
	DH = seconds in BCD
SeeAlso: AH=09h
--------B-1A09-------------------------------
INT 1A - TIME - READ RTC ALARM TIME AND STATUS (CONV,PS30)
	AH = 09h
Return: CH = hours in BCD
	CL = minutes in BCD
	DH = seconds in BCD
	DL = alarm status
	    00h alarm not enabled
	    01h alarm enabled but will not power up system
	    02h alarm will power up system
SeeAlso: AH=08h
--------B-1A0A-------------------------------
INT 1A - TIME - READ SYSTEM-TIMER DAY COUNTER (XT2,PS)
	AH = 0Ah
Return: CF set on error
	CF clear if successful
	    CX = count of days since Jan 1,1980
SeeAlso: AH=04h,AH=0Bh
--------B-1A0B-------------------------------
INT 1A - TIME - SET SYSTEM-TIMER DAY COUNTER (XT2,PS)
	AH = 0Bh
	CX = count of days since Jan 1,1980
Return: CF set on error
	CF clear if successful
SeeAlso: AH=05h,AH=0Ah
--------J-1A10-------------------------------
INT 1A - NEC PC-9800 series - PRINTER - INITIALIZE
	AH = 10h
	???
Return: ???
SeeAlso: AH=11h,AH=12h,INT 17/AH=01h
--------J-1A11-------------------------------
INT 1A - NEC PC-9800 series - PRINTER - OUTPUT CHARACTER
	AH = 11h
	???
Return: ???
SeeAlso: AH=10h,AH=12h,INT 17/AH=00h
--------J-1A12-------------------------------
INT 1A - NEC PC-9800 series - PRINTER - SENSE STATUS
	AH = 12h
	???
Return: ???
SeeAlso: AH=10h,AH=11h,INT 17/AH=02h
--------A-1A3601-----------------------------
INT 1A - WORD PERFECT v5.0 Third Party Interface - INSTALLATION CHECK
	AX = 3601h
Return: DS:SI = routine to monitor keyboard input, immediately preceded by the
		ASCIZ string "WPCORP\0"
Notes:	WordPerfect 5.0 will call this interrupt at start up to determine if a
	  third party product wants to interface with it.  The third party
	  product must intercept this interrupt and return the address of a
	  keyboard monitor routine.
	Before checking for keyboard input, and after every key entered by the
	  user, Word Perfect will call the routine whose address was provided
	  in DS:SI with the following parameters:
		Entry:	AX = key code or 0
			BX = WordPerfect state flag
		Exit:	AX = 0 or key code
			BX = 0 or segment address of buffer with key codes
	See the "WordPerfect 5.0 Developer's Toolkit" for further information.
SeeAlso: INT 16/AX=5500h
--------N-1A6108-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_SENDWITHREPLY" - SEND MSG AND GET REPLY
	AX = 6108h
	STACK:	WORD	conversation ID (0000h-0009h)
		DWORD	pointer to message buffer
		WORD	length of message
		DWORD	pointer to reply buffer
		WORD	length of reply buffer
		WORD	0000h (use default "Cparams" structure)
Return: AX = status (see #0505)
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
SeeAlso: AX=6205h

(Table 0505)
Values for SNAP.EXE status:
 0000h	successful
 F830h	"SNAP_ABORTED"
 FC04h	"SNAP_SERVERDIED"
 FC05h	"SNAP_RESEND"
 FC06h	"SNAP_SELECTFAILED"
 FC07h	"SNAP_WRONGVERSION"
 FC08h	"SNAP_INVALIDACK"
 FC09h	"SNAP_TIMEOUT"
 FC0Ah	"SNAP_SERVERREJECT"
 FC0Bh	"SNAP_NOREPLYDUE"
 FC0Ch	"SNAP_NOAUTHENTICATE"/"SNAP_GUARDIAN_ERROR"
 FC0Dh	"SNAP_NOINIT"
 FC0Eh	"SNAP_SOCKETERROR"
 FC0Fh	"SNAP_BUFFERLIMIT"
 FC10h	"SNAP_INVALIDCID"
 FC11h	"SNAP_INVALIDOP"
 FC12h	"SNAP_XMITFAIL"
 FC13h	"SNAP_NOMORERETRIES"
 FC14h	"SNAP_BADPARMS"
 FC15h	"SNAP_NOMEMORY"
 FC16h	"SNAP_NOMORECONVS"
 FFFFh	failed (invalid function/parameter)
--------N-1A6205-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_SENDNOREPLY" - SEND MSG, DON'T AWAIT REPLY
	AX = 6205h
	STACK:	WORD	conversation ID (0000h-0009h)
		DWORD	pointer to message
		WORD	length of message
		WORD	0000h (use default "Cparms" structure)
Return: AX = status (see #0505)
	STACK unchanged
SeeAlso: AX=6108h
--------N-1A6308-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_BEGINCONV" - BEGIN CONVERSATION
	AX = 6308h
	STACK:	WORD	offset of ASCIZ "guardian"
		WORD	offset of ASCIZ hostname
		WORD	offset of ASCIZ server name
		WORD	offset of ASCIZ userid
		WORD	offset of ASCIZ password
		WORD	offset of password length
		WORD	offset of password type
		WORD	offset of "Cparms" structure (see #0506)
Return: ???
	STACK unchanged
Note:	all stacked offsets are within the SNAP data segment (use AX=6A01h
	  to allocate a buffer)
SeeAlso: AX=6405h,AX=7202h

Format of SNAP.EXE Cparms structure:
Offset	Size	Description	(Table 0506)
 00h	WORD	retry delay in seconds
 02h	WORD	timeout delay in seconds
 04h	WORD	maximum buffer size
 06h	WORD	encryption level
--------N-1A6405-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_ENDCONV" - END CONVERSATION
	AX = 6405h
	STACK:	WORD	conversation ID (0000h-0009h)
		DWORD	pointer to message buffer
		WORD	length of message
		WORD	0000h (use default "Cparms" structure)
Return: AX = status (see #0505)
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
SeeAlso: AX=6308h
--------N-1A6900-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_DATASEG" - GET RESIDENT DATA SEGMENT
	AX = 6900h
Return: AX = value used for DS by resident code
SeeAlso: AX=6A01h,AX=6F01h
--------N-1A6A01-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_ALLOC" - ALLOCATE BUFFER IN SNAP DATA SEGMENT
	AX = 6A01h
	STACK:	WORD	number of bytes to allocate
Return: AX = offset of allocated buffer or 0000h if out of memory
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
SeeAlso: AX=6B01h
--------N-1A6B01-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_FREE" - DEALLOCATE BUFFER IN SNAP DATA SEGMENT
	AX = 6B01h
	STACK:	WORD	offset within SNAP data segment of previously allocated
			buffer
Return: STACK unchanged
Note:	this call is a NOP if the specified offset is 0000h
SeeAlso: AX=6A01h
--------N-1A6C04-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_COPYTO" - COPY DATA TO RESIDENT SNAP PACKAGE
	AX = 6C04h
	STACK:	WORD	offset within SNAP data segment of dest (nonzero)
		WORD	segment of source buffer
		WORD	offset of source buffer
		WORD	number of bytes to copy
Return: AX = offset of byte after last one copied to destination
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
SeeAlso: AX=6D04h
--------N-1A6D04-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_COPYFROM" - COPY DATA FROM RESIDENT SNAP PACKAGE
	AX = 6D04h
	STACK:	WORD	offset within SNAP data segment of source buffer
		WORD	segment of destination buffer
		WORD	offset of destination buffer
		WORD	number of bytes to copy
Return: AX = offset of byte after last one copied from source
	buffer filled
	STACK unchanged
SeeAlso: AX=6C04h
--------N-1A6E01-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_SETDEBUG" - SET ???
	AX = 6E01h
	STACK:	WORD	new value for ???
Return: AX = old value of ???
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
--------N-1A6F01-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_CHKINSTALL" - INSTALLATION CHECK
	AX = 6F01h
	STACK: WORD 0000h
Return: AX = status
	    0000h SNAP is resident
	    other SNAP not present
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol, and is
	  required by PCVENUS (a network shell).  The combination of SNAP and
	  PCVENUS allows the use of the Andrew File System as one or more
	  networked drives.
SeeAlso: AX=6900h,AX=7400h
--------N-1A7002-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_SETANCHOR"
	AX = 7002h
	STACK:	WORD	anchor number (0000h-0009h)
		WORD	new value for the anchor
Return: AX = status
	    0000h successful
	    FFFFh failed (top word on stack not in range 00h-09h)
	STACK unchanged
SeeAlso: AX=7101h
--------N-1A7101-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_GETANCHOR"
	AX = 7101h
	STACK:	WORD	anchor number (0000h-0009h)
Return: AX = anchor's value
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
SeeAlso: AX=7002h
--------N-1A7202-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_SETCONVPARMS" - SET CONVERSATION PARAMETERS
	AX = 7202h
	STACK:	WORD	conversation ID (0000h-0009h)
		WORD	offset within resident data segment of "Cparms"
			  structure (see #0506)
Return: AX = status???
	STACK unchanged
SeeAlso: AX=6308h
--------N-1A7302-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_CLIENTVERSION" - ???
	AX = 7302h
	STACK:	WORD	conversation ID (0000h-0009h)
		WORD	offset within resident data segment of ???
Return: AX = ???
	???
	STACK unchanged
SeeAlso: AX=7400h
--------N-1A7400-----------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_VERSION" - GET VERSION
	AX = 7400h
Return: AX = version (AH=major, AL=minor)
Note:	this call is only valid if SNAP is installed
SeeAlso: AX=7302h,INT 1A/AX=6F01h
--------N-1A75-------------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_NOP" - ???
	AH = 75h
	AL = ???
Return: AX = ??? (0000h)
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
--------N-1A76-------------------------------
INT 1A - SNAP.EXE 3.2+ - "SNAP_802_5" - ???
	AH = 76h
	AL = ???
Return: AX = ???
--------N-1A77-------------------------------
INT 1A - SNAP.EXE 3.4 - ???
	AH = 77h
	AL = ??? (at least 01h)
	STACK:	WORD	???
		???
Return: ???
	STACK unchanged
--------N-1A7802-----------------------------
INT 1A - SNAP.EXE 3.4 - ???
	AX = 7802h
	STACK:	WORD	???
		WORD	???
Return: ???
	STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
	  which implements the Simple Network Application Protocol
--------s-1A7F-------------------------------
INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND???
	AH = 7Fh
	???
Return: ???
Note:	this function is not supported by the Tandy 1000SL/TL BIOS
SeeAlso: AH=80h,AH=83h,AH=85h
--------s-1A80-------------------------------
INT 1A - PCjr, Tandy 2500???, Tandy 1000SL/TL - SET UP SOUND MULTIPLEXOR
	AH = 80h
	AL = 00h source is 8253 channel 2
	     01h source is cassette input
	     02h source is I/O channel "Audio IN"
	     03h source is sound generator chip
Note:	although documented in the 1000TL Technical Reference, the 1000TL
	  BIOS has just an IRET for this call
SeeAlso: AH=7Fh,AH=83h
--------X-1A80-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET NUMBER OF ADAPTERS
	AH = 80h
Return: CF clear if successful
	    CX = 5353h ('SS') if Socket Services installed
		AL = number of adapters present (0-16)
	    AH destroyed
	CF set on error
	    AH = error code (see #0507)
SeeAlso: AH=83h"PCMCIA"

(Table 0507)
Values for PCMCIA error codes:
 01h	"BAD_ADAPTER" nonexistent adapter
 02h	"BAD_ATTRIBUTE" invalid attribute specified
 03h	"BAD_BASE" invalid system memory base address
 04h	"BAD_EDC" invalid EDC generator specified
 05h	"BAD_INDICATOR" invalid indicator specified
 06h	"BAD_IRQ" invalid IRQ channel specified
 07h	"BAD_OFFSET" invalid PCMCIA card offset specified
 08h	"BAD_PAGE" invalid page specified
 09h	"BAD_READ" unable to complete request
 0Ah	"BAD_SIZE" invalid window size specified
 0Bh	"BAD_SOCKET" nonexistent socket specified
 0Ch	"BAD_TECHNOLOGY" unsupported Card Technology for writes
 0Dh	"BAD_TYPE" unavailable window type specified
 0Eh	"BAD_VCC" invalid Vcc power level index specified
 0Fh	"BAD_VPP" invalid Vpp1 or Vpp2 power level index specified
 10h	"BAD_WAIT" invalid number of wait states specified
 11h	"BAD_WINDOW" nonexistent window specified
 12h	"BAD_WRITE" unable to complete request
 13h	"NO_ADAPTERS" no adapters installed, but Socket Services is present
 14h	"NO_CARD" no card in socket
--------X-1A81-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - REGISTER STATUS CHANGE CALLBACK
	AH = 81h
	DS:DX -> callback routine (see #0508) or 0000h:0000h to disable
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (see #0507)
Note:	the callback will be invoked on any socket changes whose notification
	  has not been disabled with the status change enable mask; it may be
	  invoked either while processing a hardware interrupt from the adapter
	  or while processing the following Socket Services request
SeeAlso: AH=80h"PCMCIA",AH=82h"PCMCIA"

(Table 0508)
Values PCMCIA callback routine is invoked with:
	AL = adapter number
	BH = status change interrupt enable mask (see #0509)
	BL = socket number
	DH = current socket status (see #0510)
	DL = current card status (see #0511)
Return: all registers preserved
Notes:	the callback may be invoked during a hardware interrupt, and may not
	  call on Socket Services
	the callback will be invoked once for each socket with a status change

Bitfields for PCMCIA status change interrupt enable mask:
Bit(s)	Description	(Table 0509)
 7	card detect change
 6	ready change
 5	battery warning change
 4	battery dead change
 3	insertion request
 2	ejection request
 1-0	reserved (0)

Bitfields for PCMCIA current socket status:
Bit(s)	Description	(Table 0510)
 7	card changed
 6	reserved (0)
 5	card insertion complete
 4	card ejection complete
 3	card insertion request pending
 2	card ejection request pending
 1	card locked
 0	reserved (0)

Bitfields for PCMCIA current card status:
Bit(s)	Description	(Table 0511)
 7	card detect
 6	ready
 5	battery voltage detect 2 (battery warning)
 4	battery voltage detect 1 (battery dead)
 3-1	reserved (0)
 0	write protected
--------s-1A8100-----------------------------
INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND - INSTALLATION CHECK
	AX = 8100h
Return: AL > 80h if supported
	AX = 00C4h if supported (1000SL/TL)
	    CF set if sound chip is busy
	    CF clear  if sound chip is free
Note:	the value of CF is not definitive; call this function until CF is
	  clear on return, then call AH=84h"Tandy"
--------s-1A82-------------------------------
INT 1A - Tandy 2500???, Tandy 1000SL/TL - DIGITAL SOUND - RECORD SOUND
	AH = 82h
	ES:BX -> buffer for sound samples
	CX = length of buffer
	DX = transfer rate (1-4095, 1 is fastest)
Return: AH = 00h
	CF set if sound busy
	CF clear if sound chip free
Note:	the value in DX should be 1/10 the corresponding value for
	  INT 1A/AH=83h on the 1000TL, 1/11.5 on the 1000SL.  Call
	  INT 1A/AX=8100h and INT 1A/AH=84h before invoking this function.
	The BIOS issues an INT 15/AX=91FBh when the input is complete
	DMA across a 64K boundary is masked by the BIOS
--------X-1A82-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - REGISTER CARD TECHNOLOGY CALLBACK
	AH = 82h
	DS:DX -> callback routine (see #0512) or 0000h:0000h
Return: CF clear if successful
	    AH destroyed
	CF set on error
		 AH = error code (see #0507)
Note:	the callback is invoked on a Write Multiple request with an unsupported
	  card technology type
SeeAlso: AH=81h"PCMCIA",AH=94h

(Table 0512)
Values PCMCIA callback routine is invoked with:
	ES:AX -> Low-Level Socket Services Routines (see #0514)
	BH = socket attributes (see #0513)
	CX = number of bytes or words to write
	DS:SI -> data buffer to be written
	DX:DI -> 26-bit linear card address
	BP = card technology type
Return: CF clear if successful
	CF set on error
	    AH = error code (07h,0Ch,12h,14h) (see #0507)

Bitfields for PCMCIA socket attributes:
Bit(s)	Description	(Table 0513)
 7-4	reserved (0)
 3	packed buffer
 2	even bytes only (only valid if 1 set)
 1	data width (clear = byte, set = word)
 0	memory type (clear = common, set = attribute)

Format of PCMCIA Low-Level Socket Services Routines:
Offset	Size	Description	(Table 0514)
 00h	WORD	offset of Write Many routine (see #0515)
 02h	WORD	offset of Write One routine (see #0516)
 04h	WORD	offset of Read One routine (see #0517)
 06h	WORD	offset of Increment Offset routine (see #0518)
 08h	WORD	offset of Set Offset routine (see #0519)
 0Ah	WORD	offset of Get Status routine (see #0520)

(Table 0515)
Call Write Many routine with:
	BH = socket attributes (see #0513)
	CX = number of bytes or words to write
	DS:SI -> data to be written
Return: CF clear if successful
	CF set on error

(Table 0516)
Call Write One routine with:
	AL/AX = data to be written
	BH = socket attributes (see #0513)
Return: CF clear if successful
	CF set on error

(Table 0517)
Call Read One routine with:
	BH = socket attributes (see #0513)
Return: CF clear if successful
	    AL/AX = data read
	CF set on error

(Table 0518)
Call Increment Offset routine with:
	BH = socket attributes (see #0513)
Return: CF clear if successful
	CF set on error

(Table 0519)
Call Set Offset routine with:
	DX:DI = new offset address
Return: CF clear if successful
	CF set on error

(Table 0520)
Call Get Status routine with:
	nothing
Return: AL = current card status (see #0511)
--------s-1A83-------------------------------
INT 1A - Tandy 2500, Tandy 1000L series - START PLAYING DIGITAL SOUND
	AH = 83h
	AL = volume (0=silence, 7=highest)
	CX = number of bytes to play
	DX = time between sound samples (multiples of 273 nanoseconds)
	    only bits 11-0 used
	ES:BX -> sound data (array of 8-bit unsigned PCM samples)
Return: AH = 00h
	CF set if sound is busy
	CF clear if sound chip is free
Notes:	this call returns immediately while the sound plays in the
	  background; the sound chip is clocked at 3.57 MHz, with the low 12
	  bits of DX specifying the clock divisor
	The BIOS appears to call INT 15/AX=91FBh when the sound device
	  underflows to allow another INT 1A/AH=83h for seamless playing of
	  long sounds.
SeeAlso: AH=84h"Tandy",INT 15/AH=91h
--------X-1A83-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET SOCKET SERVICES VERSION NUMBER
	AH = 83h
	AL = adapter number
Return: CF clear if successful
	    AX = Socket Services version (BCD)
	    BX = implementation version (BCD)
	    CX = 5353h ("SS")
	    DS:SI -> ASCIZ implementor description
	CF set on error
	    AH = error code (01h) (see #0507)
Note:	the current version (from the Revision A.00 documentation) of Socket
	  Services is 1.00 (AX=0100h)
SeeAlso: AH=80h"PCMCIA"
--------s-1A84-------------------------------
INT 1A - Tandy 2500, Tandy 1000L series - STOP PLAYING DIGITAL SOUND
	AH = 84h
Return: ???
Note:	the BIOS will call INT 15/AX=91FBh when the sound has stopped playing
SeeAlso: AH=83h"Tandy",AH=85h"Tandy"
--------X-1A84-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - INQUIRE ADAPTER
	AH = 84h
	AL = adapter number
Return: CF clear if successful
		 AH destroyed
	    BH = number of windows
	    BL = number of sockets (1-16)
	    CX = number of EDCs
	    DH = capabilities (see #0521)
	    DL = status change interrupt used (only if DH bit 3 set)(see #0522)
	CF set on error
	    AH = error code (01h) (see #0507)
SeeAlso: AH=80h"PCMCIA",AH=85h"PCMCIA",AH=87h

Bitfields for PCMCIA capabilities:
Bit(s)	Description	(Table 0521)
 7-6	reserved (0)
 5	status change interrupt is hardware shareable
 4	status change interrupt is software shareable
 3	status change interrupt
 2	data bus width is per-socket rather than per-window
 1	power management is per-adapter rather than per-socket
 0	indicators are per-adapter rather than per-socket

(Table 0522)
Values for PCMCIA status change interrupt usage:
 00h-0Fh IRQ level
 10h	NMI
 11h	I/O check
 12h	bus error
 13h	vendor specific
 14h-FFh reserved
--------s-1A85-------------------------------
INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND???
	AH = 85h
	???
Return: ???
Note:	this function is not supported by the Tandy 1000SL/TL BIOS
SeeAlso: AH=7Fh,AH=83h"Tandy"
--------X-1A85-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET ADAPTER
	AH = 85h
	AL = adapter number
Return: CF clear if successful
	    AH destroyed
	    DH = adapter attributes (see #0523)
	CF set on error
	    AH = error code (01h) (see #0507)
SeeAlso: AH=84h"PCMCIA",AH=86h

Bitfields for PCMCIA adapter attributes:
Bit(s)	Description	(Table 0523)
 7-5	reserved (0)
 4	hardware share status change
 3	software share status change
 2	enable status change interrupts
 1	adapter preserves state information during reduced power consumption
 0	attempting to reduce power consumption
--------X-1A86-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - SET ADAPTER
	AH = 86h
	AL = adapter number
	DH = new adapter attributes (see #0523)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h) (see #0507)
SeeAlso: AH=84h"PCMCIA",AH=85h"PCMCIA"
--------X-1A87-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - INQUIRE WINDOW
	AH = 87h
	AL = adapter number
	BH = window number
Return: CF clear if successful
	    AH destroyed
	    BL = capabilities (see #0524)
	    CX = bitmap of assignable sockets
	    DH = EISA A15-A12 address lines (in bits 7-4, bits 3-0 = 0)
	    DL = supported access speeds (see #0525)
	    DS:SI -> Memory Window Characteristics table (see #0526)
	    DS:DI -> I/O Window Characteristics table (see #0527)
	CF set on error
	    AH = error code (01h,11h) (see #0507)
SeeAlso: AH=84h"PCMCIA",AH=88h,AH=89h,AH=8Ch

Bitfields for PCMCIA window capabilities:
Bit(s)	Description	(Table 0524)
 7-5	reserved (0)
 4	separate enable for EISA comon space
 3	EISA I/O mappable
 2	I/O space
 1	attribute memory
 0	common memory

Bitfields for PCMCIA supported access speeds:
Bit(s)	Description	(Table 0525)
 7	reserved (0)
 6	600 ns
 5	300 ns
 4	250 ns
 3	200 ns
 2	150 ns
 1	100 ns
 0	WAIT line monitoring

Format of PCMCIA Memory Window Characteristics table:
Offset	Size	Description	(Table 0526)
 00h	WORD	window capabilities (see #0528)
 02h	WORD	minimum base address in 4K pages
 04h	WORD	maximum base address in 4K pages
 06h	WORD	minimum window size in 4K pages
 08h	WORD	maximum window size in 4K pages
 0Ah	WORD	window size granularity (4K units)
 0Ch	WORD	required base address alignment (4K units)
 0Eh	WORD	required card offset alignment (4K units)

Format of PCMCIA I/O Window Characteristics table:
Offset	Size	Description	(Table 0527)
 00h	WORD	window capabilities (see #0528)
 02h	WORD	minimum base address in bytes
 04h	WORD	maximum base address in bytes
 06h	WORD	minimum window size in bytes
 08h	WORD	maximum window size in bytes
 0Ah	WORD	window size granularity (bytes)

Bitfields for PCMCIA window capabilities:
Bit(s)	Description	(Table 0528)
 0	programmable base address
 1	programmable window size
 2	window disable/enable supported
 3	8-data bus
 4	16-data bus
 5	base address alignment on size boundary required
 6	power-of-two size granularity
---memory windows---
 7	card offset must be aligned on size boundary
 8	paging hardware available
 9	paging hardware shared
 10	page disable/enable supported
 11-15	reserved (0)
---I/O windows---
 7-15	reserved (0)
--------X-1A88-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET WINDOW
	AH = 88h
	AL = adapter number
	BH = window number
Return: CF clear if successful
	    AH destroyed
	    BL = socket number (0-16) (0 = not assigned)
	    CX = window size (bytes for I/O window, 4K units for memory window)
	    DH = window attributes (see #0529)
	    DL = access speed (only one bit set) (see #0525)
	    SI = window base address (bytes if I/O, 4K units if memory)
	    DI = card offset address (memory only, 4K units)
	CF set on error
	    AH = error code (01h,11h) (see #0507)
SeeAlso: AH=87h,AH=89h,AH=8Ah

Bitfields for PCMCIA window attributes:
Bit(s)	Description	(Table 0529)
 0	memory-mapped rather than I/O-mapped
 1	attribute memory rather than common (memory-mapped)
	EISA mapped (I/O)
 2	enabled
 3	16-data path
 4	subdivided into pages (memory-mapped only)
 5	non-specific access slot enable (EISA-mapped only)
 6-7	reserved (0)
--------X-1A89-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - SET WINDOW
	AH = 89h
	AL = adapter number
	BH = window number
	BL = socket number
	CX = window size (bytes if I/O window, 4K units if memory window)
	DH = window attributes (see #0529)
	DL = access speed (only one bit set) (see #0525)
	SI = window base address (bytes if I/O, 4K units if memory window)
	DI = card offset addrress (memory only, 4K units)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,03h,07h,08h,0Ah,0Bh,0Dh,10h,11h) (see #0507)
SeeAlso: AH=87h,AH=88h,AH=8Bh
--------X-1A8A-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET PAGE
	AH = 8Ah
	AL = adapter number
	BH = window number
	BL = page number
Return: CF clear if successful
	    AH destroyed
	    DX = page attributes (see #0530)
	    DI = memory card offset (4K units)
	CF set on error
	    AH = error code (01h,08h,11h) (see #0507)
Notes:	this function is only valid for memory-mapped windows
	the socket being operated on is implied by the previous AH=89h call
SeeAlso: AH=88h,AH=8Bh

Bitfields for PCMCIA page attributes:
Bit(s)	Description	(Table 0530)
 0	page enabled
 15-1	reserved (0)
--------X-1A8B-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - SET PAGE
	AH = 8Bh
	AL = adapter number
	BH = window number
	BL = page number
	DX = page attributes (see #0530)
	DI = memory card offset (4K units)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,02h,07h,08h,11h) (see #0507)
Notes:	this function is only valid for memory-mapped windows
	the socket being operated on is implied by the previous AH=89h call
SeeAlso: AH=89h,AH=8Ah
--------X-1A8C-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - INQUIRE SOCKET
	AH = 8Ch
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
Return: CF clear if successful
	    AH destroyed
	    DH = capabilities (see #0531)
	    DL = hardware indicators (see #0532)
	    DS:SI -> Socket Characteristics table (see #0533)
	    DS:DI -> Power Management table (see #0535)
	CF set on error
	    AH = error code (01h,0Bh) (see #0507)
SeeAlso: AH=87h,AH=8Dh,AH=8Eh

Bitfields for PCMCIA socket capabilities:
Bit(s)	Description	(Table 0531)
 0	card change
 1	card lock
 2	insert card (motor control)
 3	eject card (motor control)
 4-7	reserved (0)

Bitfields for PCMCIA socket hardware indicators:
Bit(s)	Description	(Table 0532)
 0	busy status
 1	write-protected
 2	battery status
 3	card lock status
 4	XIP status (eXecute-In-Place)
 5-7	reserved (0)

Format of PCMCIA Socket Characteristics table:
Offset	Size	Description	(Table 0533)
 00h	WORD	supported card types (see #0534)
 02h	WORD	steerable IRQ levels (bit 0 = IRQ0 to bit 15 = IRQ15)
 04h	WORD	additional steerable IRQ levels
		bit 0: NMI
		bit 1: I/O check
		bit 2: bus error
		bit 3: vendor-unique
		bits 4-7 reserved (0)

Bitfields for supported card types:
Bit(s)	Description	(Table 0534)
 0	memory card
 1	I/O card
 2-7	reserved (0)

Format of PCMCIA Power Management table:
Offset	Size	Description	(Table 0535)
 00h	WORD	number of entries in table (0 if power management not avail)
 02h 2N BYTEs	power levels
		byte 0: voltage in 0.1V units
		byte 1: power supply
			bit 7: Vcc
			bit 6: Vpp1
			bit 5: Vpp2
--------X-1A8D-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET SOCKET
	AH = 8Dh
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
Return: CF clear if successful
	    AH destroyed
	    BH = status change interrupt enable mask (see #0509)
	    CH = Vcc level (lower nybble) (see #0535)
	    CL = Vpp1 level (upper nybble) and Vpp2 level (lower nybble)
	    DH = current socket status (see #0510)
	    DL = indicators (see #0532)
	    SI = card type (see #0536)
	    DI = IRQ level steering (I/O only) (see #0537)
	CF set on error
	    AH = error code (01h,0Bh) (see #0507)
SeeAlso: AH=8Ch,AH=8Eh

Bitfields for PCMCIA card type:
Bit(s)	Description	(Table 0536)
 0	memory
 1	I/O
 2-15	reserved (0)

Bitfields for PCMCIA I/O level steering:
Bit(s)	Description	(Table 0537)
 15	interrupt steering enabled
 14-5	reserved (0)
 4-0	IRQ level (0-15=IRQ,16=NMI,17=I/O check,18=bus error,19=vendor)
--------X-1A8E-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - SET SOCKET
	AH = 8Eh
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
	BH = status change interrupt enable mask (see #0509)
	CL = Vpp1 level (upper nybble) and Vpp2 level (lower nybble)
	DH = current socket status (see #0510)
	DL = indicators (see #0532)
	SI = card type (see #0536)
	DI = IRQ level steering (I/O only) (see #0537)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,02h,05h,06h,0Bh,0Eh,0Fh) (see #0507)
SeeAlso: AH=8Ch,AH=8Dh
--------X-1A8F-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET CARD
	AH = 8Fh
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
Return: CF clear if successful
	    AH destroyed
	    DL = current card status (see #0511)
	CF set on error
	    AH = error code (01h,0Bh) (see #0507)
SeeAlso: AH=8Dh,AH=90h
--------X-1A90-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - RESET CARD
	AH = 90h
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,0Bh,14h) (see #0507)
Note:	toggles RESET pin of the specified card, but does not wait after
	  toggling the pin; it is the caller's responsibility to avoid
	  accessing the card before it is ready again
--------X-1A91-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - READ ONE
	AH = 91h
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
	BH = attributes (see #0538)
	DX:SI = card address
Return: CF clear if successful
	    AH destroyed
	    CL/CX = value read
	CF set on error
	    AH = error code (01h,07h,09h,0Bh,14h) (see #0507)
	    CX may be destroyed
Note:	this function is only valid for I/O-mapped sockets
SeeAlso: AH=92h,AH=93h,INT 21/AX=440Dh"IOCTL"

Bitfields for PCMCIA attributes:
Bit(s)	Description	(Table 0538)
 2	even bytes only
 1	word rather than byte
 0	attribute memory instead of common memory
--------X-1A92-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - WRITE ONE
	AH = 92h
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
	BH = attributes (see #0538)
	CL/CX = value to write
	DX:SI = card address
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,07h,0Bh,12h,14h) (see #0507)
Note:	this function is only valid for I/O-mapped sockets; it also does not
	  implement Card Technology handling--use AH=94h when writing to
	  non-RAM technologies
SeeAlso: AH=91h,AH=94h,INT 21/AX=440Dh"IOCTL"
--------X-1A93-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - READ MULTIPLE
	AH = 93h
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
	BH = attributes (see #0538)
	CX = number of bytes or words to read
	DX:SI = card address
	DS:DI -> data buffer to be filled
Return: CF clear if successful
	    AH destroyed
	CF set on error
		 AH = error code (01h,07h,09h,0Bh,14h) (see #0507)
Note:	this function is only available on I/O-mapped sockets
SeeAlso: AH=91h,AH=94h,INT 21/AX=440Dh"IOCTL"
--------X-1A94-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - WRITE MULTIPLE
	AH = 94h
	AL = adapter number
	BL = socket number (01h to maximum supported by adapter)
	BH = attributes (see #0538)
	CX = number of bytes or words to read
	DX:DI = card address
	DS:SI -> buffer containing data
	BP = Card Technology type (0000h = RAM)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,07h,0Bh,0Ch,12h,14h) (see #0507)
Notes:	this function is only available on I/O-mapped sockets
	Socket Services calls the Card Technology callback (see #0512) for
	  any card technology it does not directly support
SeeAlso: AH=82h"PCMCIA",AH=92h,AH=93h,INT 21/AX=440Dh"IOCTL"
--------X-1A95-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - INQUIRE ERROR DETECTION CODE
	AH = 95h
	AL = adapter number
	BH = EDC generator number
Return: CF clear if successful
	    AH destroyed
	    CX = bitmap of assignable sockets
	    DH = EDC capabilities (see #0539)
	    DL = supported EDC types (see #0540)
	CF set on error
	    AH = error code (01h,04h) (see #0507)
SeeAlso: AH=96h,AH=9Ch

Bitfields for EDC capabilities:
Bit(s)	Description	(Table 0539)
 0	unidirectional only generation
 1	bidirectional only generation
 2	register-based (I/O-mapped) support
 3	memory-mapped support
 4	pausable
 5-7	reserved (0)

Bitfields for supported EDC types:
Bit(s)	Description	(Table 0540)
 0	8-checksum
 1	16-CRC-SDLC
 2-7	reserved (0)
--------X-1A96-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - GET ERROR DETECTION CODE
	AH = 96h
	AL = adapter number
	BH = EDC generator number
Return: CF clear if successful
	    AH destroyed
	    BL = socket number
	    DH = EDC attributes (see #0541)
	    DL = EDC type (see #0540) (only one bit set)
	CF set on error
	    AH = error code (01h,04h) (see #0507)
SeeAlso: AH=95h,AH=97h,AH=9Ch

Bitfields for EDC attributes:
Bit(s)	Description	(Table 0541)
 0	unidirectional only
 1	(if 0 set) clear=read, set=write
 2-7	reserved (0)
--------X-1A97-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - SET ERROR DETECTION CODE
	AH = 97h
	AL = adapter number
	BH = EDC generator
	BL = socket number
	DH = EDC attributes (see #0541)
	DL = EDC type (see #0540) (only one bit may be set)
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,02h,04h,0Bh) (see #0507)
SeeAlso: AH=96h,AH=9Ch
--------X-1A98-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - START ERROR DETECTION CODE
	AH = 98h
	AL = adapter number
	BH = EDC generator
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,04h) (see #0507)
SeeAlso: AH=96h,AH=99h,AH=9Bh,AH=9Ch
--------X-1A99-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - PAUSE ERROR DETECTION CODE
	AH = 99h
	AL = adapter number
	BH = EDC generator
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,04h) (see #0507)
SeeAlso: AH=9Ah
--------X-1A9A-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - RESUME ERROR DETECTION CODE
	AH = 9Ah
	AL = adapter number
	BH = EDC generator
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (01h,04h) (see #0507)
SeeAlso: AH=99h,AH=98h
--------X-1A9B-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - STOP ERROR DETECTION CODE
	AH = 9Bh
	AL = adapter number
	BH = EDC generator
Return: CF clear if successful
	    AH destroyed
	CF set on error
	    AH = error code (see #0507)
SeeAlso: AH=98h,AH=99h,AH=9Ch
--------X-1A9C-------------------------------
INT 1A - PCMCIA Socket Services v1.00 - READ ERROR DETECTION CODE
	AH = 9Ch
	AL = adapter number
	BH = EDC generator
Return: CF clear if successful
	    AH destroyed
	    DL/DX = computed checksum or CRC
	CF set on error
	    AH = error code (01h,04h) (see #0507)
SeeAlso: AH=95h,AH=96h,AH=98h,AH=99h,AH=9Bh
--------X-1A9D-------------------------------
INT 1A - Intel PCMCIA ExCA Card Services - API
	AH = 9Dh
	AL = subfunction (see #0542)
	???
Return: ???
Note:	this API is supported by recent versions of the AMI BIOS

(Table 0542)
Values for PCMCIA ExCA Card Services subfunction number:
 00h	Client Services: Get Number of Sockets
 01h	Advanced Client Utilities: Initialize
 02h	Client Services: Register Client
 03h	Client Services: Deregister Client
 04h	Advanced Client Utilities: Enumerate Clients
 05h	Client Services: Register SCB
 06h	Client Services: Deregister SCB
 07h	Advanced Client Utilities: Register MTD
 08h	Advanced Client Utilities: Deregister MTD
 09h	Advanced Client Utilities: Enumerate MTD
 0Ah	Client Services: Get Status
 0Bh	Client Services: Reset Card
 0Ch	Client Utilities: Get First Tuple
 0Dh	Client Utilities: Get Next Tuple
 0Eh	Client Utilities: Determine First Region
 0Fh	Client Utilities: Determine Next Region
 10h	Client Utilities: Get First Region
 11h	Client Utilities: Get Next Region
 12h	Client Utilities: Get First Partition
 13h	Client Utilities: Get Next Partition
 14h	Bulk Memory Services: Open Region
 15h	Bulk Memory Services: Read Memory
 16h	Bulk Memory Services: Write Memory
 17h	Bulk Memory Services: Copy Memory
 18h	Bulk Memory Services: Erase Memory
 19h	Resource Management: Request I/O
 1Ah	Resource Management: Release I/O
 1Bh	Resource Management: Request Memory
 1Ch	Client Services: Modify Window
 1Dh	Resource Management: Release Memory
 1Eh	Client Services: Map Mem Page
 1Fh	Advanced Client Utilities: Return SS Entry
 20h	Advanced Client Utilities: Map Log to Phy
 21h	Advanced Client Utilities: Map Log Phy to Log
 22h	Resource Management: Request IRQ
 23h	Resource Management: Release IRQ
 24h	Bulk Memory Services: Close Region
--------X-1A9E-------------------------------
INT 1A - PCMCIA Socket Services v2.1 - ???
	AH = 9Eh
	???
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,18h)
	???
--------X-1A9F-------------------------------
INT 1A - PCMCIA Socket Services v2.1 - ???
	AH = 9Fh
	???
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,18h)
	???
SeeAlso: AH=9Eh,AH=A0h"PCMCIA",AH=AEh"PCMCIA"
--------c-1AA0-------------------------------
INT 1A U - Disk Spool II v2.07+ - INSTALLATION CHECK
	AH = A0h
Return: AH = B0h if installed
	    AL = pending INT 1A/AH=D0h subfunction if nonzero???
	    ES = code segment
	    ES:BX -> name of current spool file
	    ES:SI -> current despool file
	    CL = despooler state (00h disabled, 41h enabled)
	    CH = spooler state (00h disabled, 41h enabled)
	    DL = despooler activity
		00h currently active printing a file
		41h standing by
	    DH = 00h ???
	       = 41h ???
	    DI = 0000h ???
		 0001h ???
Program: Disk Spool II is a shareware disk-based print spooler by Budget
	  Software Company
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=ABh,AH=C0h,AH=D0h,AH=E1h
--------X-1AA0-------------------------------
INT 1A - PCMCIA Socket Services v2.1 - ???
	AH = A0h
	???
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,18h)
	???
SeeAlso: AH=9Fh,AH=AEh
--------c-1AAB-------------------------------
INT 1A U - Disk Spool II v1.83 - INSTALLATION CHECK
	AH = ABh
Return: AH = BAh if installed
	    AL = pending INT 1A/AH=ADh subfunction if nonzero???
	    ES = code segment
	    ES:BX -> name of current spool file
	    ES:SI -> current despool file
	    CL = despooler state (00h disabled, 41h enabled)
	    CH = spooler state (00h disabled, 41h enabled)
	    DL = despooler activity
		00h currently active printing a file
		41h standing by
	    DH = 00h ???
	       = 41h ???
	    DI = 0000h ???
		 0001h ???
Program: Disk Spool II is a shareware disk-based print spooler by Budget
	  Software Company
SeeAlso: AH=A0h,AH=ACh,AH=ADh,AH=E1h
--------c-1AAC-------------------------------
INT 1A U - Disk Spool II v1.83 - INSTALLATION CHECK
	AH = ACh
Return: (see AH=ABh)
Note:	this function is identical to AH=ABh
SeeAlso: AH=A0h,AH=ABh,AH=ADh
--------c-1AAD-------------------------------
INT 1A U - Disk Spool II v1.83 - FUNCTION CALLS
	AH = ADh
	AL = function code (see #0543)
Return: AH = 00h if successful
SeeAlso: AH=ABh

(Table 0543)
Values for Disk Spool function code:
 02h	enable spooler only
 03h	enable the despooler
 04h	disable the despooler
 08h	inhibit popup menu
 09h	enable popup menu
 0Ah	???
 0Bh	disable the spooler
 0Ch	start despooler after last successfully printed document???
 0Dh	start despooler at the exact point where it last left off???
 0Eh	pop up the menu
 0Fh	???
 11h	???
 14h	???
 15h	???
 16h	???
 17h	???
 18h	???
 19h	???
 20h	clear file pointed to by the despooler???
 21h	???
 22h	???
 23h	???
 30h	???
--------X-1AAE-------------------------------
INT 1A - PCMCIA Socket Services v2.1 - API
	AH = AEh
	SI = function
	    0002h ???
	    0100h ???
	    0101h ???
	    8000h ???
	    8001h ???
	details not yet available
Return: CF clear if successful
	CF set on error
	    AH = error code
		02h ???
		0Bh ???
		11h ???
		15h invalid function
		17h ???
--------X-1AAF-------------------------------
INT 1A - PCMCIA v2 - API
	AH = AFh
	details not yet available
--------!---Section--------------------------
Interrupt List, part 4 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------X-1AB000-----------------------------
INT 1A U - HP 100LX/200LX - PCMCIA - ???
	AX = B000h
	ES:BX -> parameter block ???
Return: CF clear if ???
	CF set if ???
Note:	called by HP 100LX/200LX PCMCIA client CIC100.EXE
--------d-1AB001CX4D52-----------------------
INT 1A - Microsoft Real-Time Compression Interface (MRCI) - ROM-BASED SERVER
	AX = B001h
	CX = 4D52h ("MR")
	DX = 4349h ("CI")
Return: CX = 4943h ("IC") if installed
	DX = 524Dh ("RM") if installed
	    ES:DI -> MRCINFO structure (see #0544)
Note:	this call is functionally identical to INT 2F/AX=4A12h, which should
	  be called first, as this call is used for the first, ROM-based
	  MRCI server, while the other call is used for RAM-based servers
	  which may be partially or entirely replacing a prior server
SeeAlso: INT 2F/AX=4A12h

Format of MRCINFO structure:
Offset	Size	Description	(Table 0544)
 00h  4 BYTEs	vendor signature
		"MSFT" Microsoft
 04h	WORD	server version (high=major)
 06h	WORD	MRCI specification version
 08h	DWORD	address of server entry point (see #0546)
 0Ch	WORD	bit flags: server capabilities (see #0545)
 0Eh	WORD	bit flags: hardware assisted capabilities (see #0545)
 10h	WORD	maximum block size supported by server (at least 8192 bytes)

Bitfields for MRCI capabilities:
Bit(s)	Description	(Table 0545)
 0	standard compress
 1	standard decompress
 2	update compress
 3	MaxCompress (not present in initial public release)
 4	reserved
 5	incremental decompress
 6	MRCI 2.0 standard compress
 7	MRCI 2.0 standard decompress
 8-14	reserved
 15	this structure is in ROM and can't be modified
	(server capabilities only)

(Table 0546)
Call MRCI entry point with:
	DS:SI -> MRCREQUEST structure (see #0547)
	CX = type of client (0000h application, 0001h file system)
	AX = operation
	    0001h perform standard compression
	    0002h perform standard decompression
	    0004h perform update compression
	    0008h perform MaxCompress
	    0020h perform incremental decompression
	    0040h perform MRCI 2.0 standard compression
	    0080h perform MRCI 2.0 standard decompression
	AX = FFFFh clear flags
	    BX = bitmask of flags to clear (set bits in BX are flags to clear)
Return: AX = status
	    0000h successful
	    0001h invalid function
	    0002h server busy, try again
	    0003h destination buffer too small
	    0004h incompressible data
	    0005h bad compressed data format
	BP destroyed (MS-DOS 6.2)
Note:	MRCI driver may chain to a previous driver

Format of MRCREQUEST structure:
Offset	Size	Description	(Table 0547)
 00h	DWORD	pointer to source buffer
 04h	WORD	size of source buffer (0000h = 64K)
 06h	WORD	(UpdateCompress only)
		(call) offset in source buffer of beginning of changed data
		(ret) offset in destination buffer of beginning of changed
			  compressed data
 08h	DWORD	pointer to destination buffer
		must contain original compressed data for UpdateCompress
 0Ch	WORD	size of destination buffer (0000h = 64K)
		any compression: size of buffer for compressed data
		standard decompression: number of bytes to be decompressed
		incremental decompression: number of byte to decompress now
		(ret) actual size of resulting data
 0Eh	WORD	client compressed data storage allocation size
 10h	DWORD	incremental decompression state data
		set to 00000000h before first incremental decompression call
Notes:	the source and destination buffers may not overlap
	the source and destination buffer sizes should normally be the same
	application should not update the contents of the MRCREQUEST structure
	  between incremental decompression calls
--------X-1AB101-----------------------------
INT 1A - Intel PCI BIOS v2.0c - INSTALLATION CHECK
	AX = B101h
Return: AH = 00h if installed
	    CF clear
	    EDX = 20494350h (' ICP')
	    EDI = physical address of protected-mode entry point (see #0550)
	    AL = PCI hardware characteristics (see #0549)
	    BH = PCI interface level major version (BCD)
	    BL = PCI interface level minor version (BCD)
	    CL = number of last PCI bus in system
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Note:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
SeeAlso: AX=B181h

(Table 0548)
Values for PCI BIOS v2.0c status codes:
 00h	successful
 81h	unsupported function
 83h	bad vendor ID
 86h	device not found
 87h	bad PCI register number

Bitfields for PCI hardware characteristics:
Bit(s)	Description	(Table 0549)
 0	configuration space access mechanism 1 supported
 1	configuration space access mechanism 2 supported
 2-3	reserved
 4	Special Cycle generation mechanism 1 supported
 5	Special Cycle generation mechanism 2 supported
 6-7	reserved

(Table 0550)
Call protected-mode entry point with:
	registers as for real/V86-mode INT call
	CS = ring 0 descriptor with access to full address space
Return: as for real/V86-mode call
--------X-1AB102-----------------------------
INT 1A - Intel PCI BIOS v2.0c - FIND PCI DEVICE
	AX = B102h
	CX = device ID
	DX = vendor ID
	SI = device index (0-n)
Return: CF clear if successful
	CF set on error
	AH = status (00h,83h,86h) (see #0548)
	    00h successful
		BH = bus number
		BL = device/function number (bits 7-3 device, bits 2-0 func)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	device ID FFFFh may be reserved as a wildcard in future implementations
	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
	all devices sharing a single vendor ID and device ID may be enumerated
	  by incrementing SI from 0 until error 86h is returned
SeeAlso: AX=B182h
--------X-1AB103-----------------------------
INT 1A - Intel PCI BIOS v2.0c - FIND PCI CLASS CODE
	AX = B103h
	ECX = class code (bits 23-0)
	    xx400000h = multimedia device, video subclass
	    xx408000h = multimedia device, other multimedia device
	SI = device index (0-n)
Return: CF clear if successful
	CF set on error
	AH = status (00h,86h) (see #0548)
	    00h successful
		BH = bus number
		BL = device/function number (bits 7-3 device, bits 2-0 func)
	    86h device not found
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
	all devices sharing the same Class Code may be enumerated by
	  incrementing SI from 0 until error 86h is returned
SeeAlso: AX=B183h
--------X-1AB106-----------------------------
INT 1A - Intel PCI BIOS v2.0c - PCI BUS-SPECIFIC OPERATIONS
	AX = B106h
	BL = bus number
	EDX = Special Cycle data
Return: CF clear if successful
	CF set on error
	AH = status (00h,81h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Note:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
SeeAlso: AX=B186h
--------X-1AB108-----------------------------
INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION BYTE
	AX = B108h
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	BH = bus number
	DI = register number (0000h-00FFh)
Return: CF clear if successful
		 CL = byte read
	CF set on error
	AH = status (00h,87h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on entry were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B188h
--------X-1AB109-----------------------------
INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION WORD
	AX = B109h
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	BH = bus number
	DI = register number (0000h-00FFh)
Return: CF clear if successful
	    CX = word read
	CF set on error
	AH = status (00h,87h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on entry were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B189h
--------X-1AB10A-----------------------------
INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION DWORD
	AX = B10Ah
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (0000h-00FFh)
Return: CF clear if successful
	    ECX = dword read
	CF set on error
	AH = status (00h,87h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on entry were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B18Ah
--------X-1AB10B-----------------------------
INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION BYTE
	AX = B10Bh
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (0000h-00FFh)
	CL = byte to write
Return: CF clear if successful
	CF set on error
	AH = status (00h,87h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on entry were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B18Bh
--------X-1AB10C-----------------------------
INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION WORD
	AX = B10Ch
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (multiple of 2 less than 0100h)
	CX = word to write
Return: CF clear if successful
	CF set on error
	AH = status (00h,87h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on entry were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B18Ch
--------X-1AB10D-----------------------------
INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION DWORD
	AX = B10Dh
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (multiple of 4 less than 0100h)
	ECX = dword to write
Return: CF clear if successful
	CF set on error
	AH = status (00h,87h) (see #0548)
	EAX, EBX, ECX, and EDX may be modified
	all other flags (except IF) may be modified
Notes:	this function may require up to 1024 byte of stack; it will not enable
	  interrupts if they were disabled before making the call
	the meanings of BL and BH on entry were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B18Dh
--------X-1AB181-----------------------------
INT 1A - Intel PCI BIOS v2.0c - INSTALLATION CHECK (32-bit)
	AX = B181h
Return: as for AX=B101h
SeeAlso: AX=B101h
--------X-1AB182-----------------------------
INT 1A - Intel PCI BIOS v2.0c - FIND PCI DEVICE (32-bit)
	AX = B182h
	CX = device ID
	DX = vendor ID
	SI = device index (0-n)
Return: as for AX=B102h
SeeAlso: AX=B102h
--------X-1AB183-----------------------------
INT 1A - Intel PCI BIOS v2.0c - FIND PCI CLASS CODE (32-bit)
	AX = B183h
	ECX = class code (bits 23-0)
	SI = device index (0-n)
Return: as for AX=B103h
SeeAlso: AX=B103h
--------X-1AB186-----------------------------
INT 1A - Intel PCI BIOS v2.0c - PCI BUS-SPECIFIC OPERATIONS (32-bit)
	AX = B186h
	BH = bus number
	EDX = Special Cycle data
Return: as for AX=B106h
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B106h
--------X-1AB188-----------------------------
INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION BYTE (32-bit)
	AX = B188h
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (0000h-00FFh)
Return: as for AX=B108h
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B108h
--------X-1AB189-----------------------------
INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION WORD (32-bit)
	AX = B189h
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (0000h-00FFh)
Return: as for AX=B109h
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B109h
--------X-1AB18A-----------------------------
INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION DWORD (32-bit)
	AX = B18Ah
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (0000h-00FFh)
Return: as for AX=B10Ah
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B10Ah
--------X-1AB18B-----------------------------
INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION BYTE (32-bit)
	AX = B18Bh
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (0000h-00FFh)
	CL = byte to write
Return: as for AX=B10Bh
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B10Bh
--------X-1AB18C-----------------------------
INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION WORD (32-bit)
	AX = B18Ch
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (multiple of 2 less than 0100h)
	CX = word to write
Return: as for AX=B10Ch
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B10Ch
--------X-1AB18D-----------------------------
INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION DWORD (32-bit)
	AX = B18Dh
	BH = bus number
	BL = device/function number (bits 7-3 device, bits 2-0 function)
	DI = register number (multiple of 4 less than 0100h)
	ECX = dword to write
Return: as for AX=B10Dh
Note:	the meanings of BL and BH on return were exchanged between the initial
	  drafts of the specification and final implementation
SeeAlso: AX=B10Dh
--------X-1AB400-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - INSTALLATION CHECK
	AX = B400h
Return: CF clear if installed
	AX = 0000h if installed
	    BH = ??? (02h)
	    BL = ??? (08h)
	    CX = ??? (0002h)
	    EDX = 47464341h ('GFCA', which is byte-swapped 'ACFG')
	    SI = ??? (001Fh)
SeeAlso: AX=B401h,AX=B402h,AX=B403h,AX=B404h,AX=B405h,AX=B406h,AX=B407h
SeeAlso: @xxxxh:xxxxh"Plug-and-Play"

(Table 0551)
Values for Intel Plug-and-Play AUTO-CONFIGURATION error codes:
 0000h	successful
 0051h	???
 0055h	unable to read/write configuration table from/to nonvolatile storage
 0056h	not a valid configuration table or wrong table version
 0059h	buffer too small
 FFFFh	???
--------X-1AB401-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET DEFAULT CONFIG TABLE
	AX = B401h
Return: CF clear if successful
	    AX = 0000h
	    BX = maximum size of configuration table??? (1000h)
	    CX = ??? (2000h)
	    EDI = linear/physical address of ESCD table (see #0552)
	CF set on error
	    AX = error code (see #0551)
SeeAlso: AX=B400h,AX=B402h,@xxxxh:xxxxh"Plug-and-Play"

Format of Intel Plug-and-Play Extended System Configuration Data table:
Offset	Size	Description	(Table 0552)
 00h	WORD	total length of this table
 02h  4 BYTEs	signature "ACFG"
 06h	BYTE	minor version number
 07h	BYTE	major version number (currently 02h)
 08h	BYTE	number of boards listed in the configuration data
 09h  3 BYTEs	reserved (00h)
 0Ch	var	board data
	WORD	checksum
Notes:	this table contains information about the standard devices in the
	  system, such as serial ports, parallel ports, etc.  For each device,
	  it includes at least the I/O port address (03F8h,02F8h,0378h,etc).
	the sum of all words in the table, including the checksum field (with
	  implied zero padding if the length is odd), must equal 0000h
SeeAlso: #0553

Format of Extended System Configuration Data Board Header:
Offset	Size	Description	(Table 0553)
 00h	WORD	length of this header in bytes
 02h	BYTE	slot number
		00h motherboard
		01h-0Fh ISA/EISA
		10h-40h	PCI
 03h	BYTE	reserved (00h)
SeeAlso: #0552,#0554

Format of Extended System Configuration Data Freeform Board Header:
Offset	Size	Description	(Table 0554)
 00h  4 BYTEs	signature "ACFG"
 04h	BYTE	minor version number
 05h	BYTE	major version number (currently 02h)
 06h	BYTE	board type
		01h ISA
		02h EISA
		04h PCI
		08h PCMCIA
		10h PnPISA
		20h MCA
 07h	BYTE	reserved (00h)
 08h	WORD	disabled functions (bit N set = function N disabled)
 0Ah	WORD	configuration error functions
 0Ch	WORD	reconfigurable functions (bit N set = function N reconfig'able)
 0Eh  2 BYTEs	reserved (00h)
SeeAlso: #0557,#0558

Format of Extended System Configuration Data Freeform PCI Device Data:
Offset	Size	Description	(Table 0555)
 00h	BYTE	PCI bus number
 01h	BYTE	PCI device and function number
 02h	WORD	PCI device identifier
 04h	WORD	PCI vendor ID
		1002h = ATI
 06h  2 BYTEs	reserved (00h)
SeeAlso: #0555,#0558

Format of Extended System Configuration Data Freeform PnP ISA Board ID:
Offset	Size	Description	(Table 0556)
 00h	DWORD	vendor ID (EISA device identifier)
 04h	DWORD	serial number
SeeAlso: #0556,#0557

Format of Extended System Configuration Data PnP ISA ECD Extension Function:
Offset	Size	Description	(Table 0557)
 00h	WORD	001Eh (length of this structure)
 02h	BYTE	01h (selection size)
 03h	BYTE	00h (selection data)
 04h	BYTE	C0h (function information byte) (see #0560)
 05h	BYTE	18h (size of following free-format data)
 06h 16 BYTEs	freeform board header (see #0554)
 16h  8 BYTEs	Plug-and-Play board ID (see #0556)
Note:	ECD = Extended Configuration Data; this structure must be the last
	  "function" for a particular ISA Plug-and-Play board
SeeAlso: #0558

Format of Extended System Configuration Data PCI ECD Extension Function:
Offset	Size	Description	(Table 0558)
 00h	WORD	length of this structure (at least 001Eh, up to 0056h)
 02h	BYTE	01h (selection size)
 03h	BYTE	00h (selection data)
 04h	BYTE	C0h (function information byte) (see #0560)
 05h	BYTE	size of following free-format data (at least 18h, max 50h)
 06h 16 BYTEs	freeform board header (see #0554)
 16h 8N BYTEs	PCI board ID (see #0555) for one to eight boards
Notes:	ECD = Extended Configuration Data; this structure must be the last
	  "function" for a particular PCI board
	AMI BIOS v1.00.05.AX1 sets the length field to 001Ch for entries with
	  a single board ID, apparently treating the field as the length of
	  the remainder of the structure instead of the full structure's length
SeeAlso: #0557

Bitfields for EISA ID and Slot Information:
Bit(s)	Description	(Table 0559)
 3-0	selector among duplicate configuration file names (0000 if no dups)
 5-4	slot type
	00 expansion slot
	01 embedded
	10 virtual slot
	11 reserved
 6	ID is readable
 7	duplicate IDs present
 8	board can be disabled
 9	IOCHKERR supported
 10	board or entries locked
 13-11	reserved
 14	board does not have or need configuration file
 15	configuration not complete
SeeAlso: #0560

Bitfields for EISA Function Information:
Bit(s)	Description	(Table 0560)
 0	subtype data
 1	memory information (see #0561)
 2	IRQ information (see #0563)
 3	DMA information (see #0564)
 4	port range information (see #0565)
 5	port initialization data (see #0566)
 6	free form data
 7	function disabled
SeeAlso: #0557,#0558,#0559 

Format of EISA Memory Information:
Offset	Size	Description	(Table 0561)
 00h	WORD	memory information flags (see #0562)
 02h  3 BYTEs	high 24 bits of memory start address (LSB first)
 05h	WORD	memory size in K (0000h = 65536K)
SeeAlso: #0560

Bitfields for EISA Memory Information Flags:
Bit(s)	Description	(Table 0562)
 0	writable (RAM rather than ROM)
 1	cached
 2	write-back cache rather than write-through
 4-3	memory type
	00 system
	01 expantion
	10 virtual
	11 other
 5	shared
 6	reserved (0)
 7	more entries follow
 9-8	memory width
	00 byte
	01 word
	10 dword
	11 reserved
 11-10	decoded address lines
	00 = 20
	01 = 24
	10 = 32
	11 reserved
 15-12	reserved (0)
SeeAlso: #0561

Bitfields for EISA IRQ Information:
Bit(s)	Description	(Table 0563)
 3-0	IRQ number
 4	reserved (0)
 5	IRQ triggering (0 = edge, 1 = level)
 6	IRQ is shareable
 7	more entries follow
 15-8	reserved (0)
SeeAlso: #0560

Bitfields for EISA DMA Information:
Bit(s)	Description	(Table 0564)
 2-0	DMA channel number
 5-3	reserved (0)
 6	shareable
 7	more entries follow
 9-8	reserved
 11-10	DMA transfer size
	00 byte
	01 word
	10 dword
	11 word, but count in bytes
 13-12	DMA timing
	00 ISA-compatible
	01 EISA type "A"
	10 EISA type "B"
	11 EISA type "C"/"F" (burst)
 15-14	reserved (0)
SeeAlso: #0560

Format of EISA Port Range Information:
Offset	Size	Description	(Table 0565)
 00h	BYTE	port description
		bits 4-0: number of sequential ports
		bit 5 reserved (0)
		bit 6: shareable
		bit 7: more entries follow
 01h	WORD	I/O port address
SeeAlso: #0560,#0566

Format of EISA Port Initialization Data:
Offset	Size	Description	(Table 0566)
 00h	BYTE	flags
		bits 1-0: port size
			00 byte
			01 word
			10 dword
			11 reserved
		bit 2: masked write
		bits 6-3 reserved (0)
		bit 7: more entries follow
 01h	???
SeeAlso: #0560,#0565
--------X-1AB402-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - COPY AND VERIFY CONFIG TABLE
	AX = B402h
	DS:SI -> configuration table (see #0552)
	ES:DI -> buffer for copy of configuration table
Return: CF clear if successful
	    AX = 0000h
	CF set on error
	    AX = error code (0055h,0056h) (see #0551)
Note:	the buffer pointed at by ES:DI must be at least as large as the
	  maximum configuration table size reported by AX=B401h
SeeAlso: AX=B400h,AX=B401h
--------X-1AB403-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - ???
	AX = B403h
	DS:SI -> configuration table (see #0552)
Return: CF clear if successful
	    AX = 0000h
	CF set on error
	    AX = error code (0055h) (see #0551)
Note:	sets the configuration table's checksum field, then ???
SeeAlso: AX=B400h
--------X-1AB404-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - ???
	AX = B404h
	BX = ???
Return: CF clear if successful
	    AX = 0000h
	    BX = ???
	    CX = ???
	    DX = ???
	CF set on error
	    AX = error code (0051h) (see #0551)
SeeAlso: AX=B400h
--------X-1AB405-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET ???
	AX = B405h
Return: AX = ??? (0008h)
SeeAlso: AX=B400h
--------X-1AB406-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET ???
	AX = B406h
	ES:DI -> ??? header (see #0567)
Return: CF clear if successful
	    AX = 0000h
	    WORD ES:[DI] = size of returned data
	CF set on error
	    AX = error code (0059h) (see #0551)
	    WORD ES:[DI] = required size of buffer
SeeAlso: AX=B400h

Format of Intel Plug-and-Play AUTO-CONFIGURATION ??? header:
Offset	Size	Description	(Table 0567)
 00h	WORD	length of structure buffer
 02h	DWORD	-> structure array buffer (see #0568)

Format of Intel Plug-and-Play AUTO-CONFIGURATION ??? structure entry [array]:
Offset	Size	Description	(Table 0568)
 00h	BYTE	???
 01h	BYTE	???
 02h	BYTE	???
 03h	WORD	???
 05h	BYTE	???
 06h	WORD	???
 08h	BYTE	???
 09h	WORD	???
 0Bh	BYTE	???
 0Ch	WORD	???
 0Eh	WORD	???
SeeAlso: #0567
--------X-1AB407-----------------------------
INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - ???
	AX = B407h
	EDX = length of ???
	EDI = physical address of ???
Return: CF clear if successful
	    AX = 0000h
	    EDI = ???
	CF set on error
		 AX = error code (FFFFh) (see #0551)
Note:	returns error if EDI < 000c0000h="" seealso:="" ax="B400h" --------x-1ab4-------------------------------="" int="" 1a="" -="" intel="" plug-and-play="" auto-configuration="" -="" 32-bit="" api="" ah="B4h" al="function" (80h-87h)="" further="" details="" not="" yet="" available="" note:="" these="" functions="" are="" 32-bit="" versions="" of="" functions="" 00h-07h="" --------c-1ac0-------------------------------="" int="" 1a="" u="" -="" disk="" spool="" ii="" v2.07+="" -="" alternate="" installation="" check="" ah="C0h" return:="" (see="" ah="A0h)" notes:="" this="" call="" is="" identical="" to="" ah="A0h" this="" function="" is="" also="" supported="" by="" vertisoft's="" emulaser="" utility="" elspl,="" as="" that="" is="" a="" licensed="" version="" of="" disk="" spool="" ii="" seealso:="" ah="A0h,AH=ABh,AH=D0h" --------u-1accccbxcccc-----------------------="" int="" 1a="" u="" -="" datefix="" -="" installation="" check="" ax="CCCCh" bx="CCCCh" cx="0000h" return:="" cx="CCCCh" if="" installed="" es:bx="" -=""> original interrupt handler
Program: DATEFIX is a public-domain TSR to correct the date on AT&T 6300
	  machines, where the realtime clock's calendar wraps after 1991
SeeAlso: AH=FEh,AH=FFh"AT&T"
--------c-1AD0-------------------------------
INT 1A U - Disk Spool II v2.07+ - FUNCTION CALLS
	AH = D0h
	AL = function code
	    01h enable spooler and despooler
	    02h enable spooler only
	    03h enable despooler at beginning of file
	    04h disable the despooler
	    05h disable the despooler and spooler
	    06h clear the spool file
	    08h inhibit the popup menu
	    09h enable the popup menu
	    0Ah ??? (called by Disk Spool's INT 21 handler)
	    0Bh disable the spooler
	    0Ch start despooler after last successfully printed document
	    0Dh start despooler at the exact point where it last left off
	    0Eh pop up the menu
	    0Fh ???
	    11h start new spool file??? (called by Disk Spool's INT 21 handler
			when a program terminates)
	    14h ???
	    15h delete despool file and reset ???
	    16h ??? (writes something to unknown file)
	    17h ??? (writes something to despool file, then reads something
			else and ???)
	    18h ??? (reads something from despool file, and then ???)
	    19h ??? (creates/truncates spool file)
	    20h clear file pointed to by the despooler
	    21h ??? (writes something to unknown file)
	    22h ??? (writes something to spool file if spooler/despooler using
			same file)
	    23h ??? (opens/creates unknown file, then ???)
	    30h ???
	    31h ???
	    32h beep
	    33h append CRLF to spool file???
	    34h ???
	    35h ???
	    36h ???
	    37h append CRLF to spool file and start a new spool file???
	    38h ???
	    40h ??? (v4.05)
		 41h ??? (v4.05)
	    51h ??? (called by Disk Spool's INT 21 handler)
	    52h ??? (called by Disk Spool's INT 21 handler)
	    57h ???
	    5Ah ??? (v4.05)
	    5Bh ??? (v4.05)
	    5Ch ??? (v4.05)
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=A0h,AH=ADh
--------c-1AE0-------------------------------
INT 1A - Disk Spool II v4.0x - ENABLE/DISABLE
	AH = E0h
	AL = subfunction
	    01h enable spooler
	    02h disable spooler
	    03h enable despooler
	    04h disable despooler
	CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
Return: AH = status
	    00h successful
	    F0h printer port not managed by Disk Spool II
	    FFH failed
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=A0h,AH=E1h,AX=E301h,AX=E401h
--------c-1AE1-------------------------------
INT 1A - Disk Spool II v4.0x - GET STATUS
	AH = E1h
	CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
Return: AH = status
	    00h successful
		CL = despooler state (00h disabled, 41h enabled)
		CH = spooler state (00h disabled, 41h enabled)
		DL = despooler activity (00h standing by, 41h printing)
		ES:BX -> ASCIZ name of current spool file (or next if AutoSpool
			or AutoDespool enabled)
		ES:SI -> ASCIZ name of current despool file
		ES:DI -> 3-byte file extension used by Disk Spool II
	    F0h printer port not managed by Disk Spool II
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=A0h,AH=E0h,AH=E2h
----------1AE11B-----------------------------
INT 1A - TheGrab v4.60 - ???
	AX = E11Bh
	???
Return: ??? (may destroy all registers)
SeeAlso: AX=E11Dh
----------1AE11D-----------------------------
INT 1A - TheGrab v4.60 - INSTALLATION CHECK
	AX = E11Dh
Return: ES:DI -> signature block (see #0569) if installed
	    CX = length of signature block (000Fh)
Program: TheGrab is a resident ANSI screen grabber bundled with TheDraw
SeeAlso: AX=E11Bh

Format of TheGrab signature block:
Offset	Size	Description	(Table 0569)
 00h	BYTE	08h
 01h  8 BYTEs	ASCIZ "THEGRAB"
 09h  6 BYTEs	??? (zeros)
--------c-1AE2-------------------------------
INT 1A - Disk Spool II v4.0x - GET SPOOL FILES
	AH = E2h
	AL = which
	    01h first
	    02h next (can only call after "first")
	CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
Return: AH = status
	    00h successful
		ES:BX -> ASCIZ filename
	    F0h no (more) spool files
	    FFh failed
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=E0h,AH=E1h
--------c-1AE301-----------------------------
INT 1A - Disk Spool II v4.0x - GET SPOOL FILE STATUS
	AX = E301h
	ES:BX -> ASCIZ filename (max 32 chars)
Return: AH = status
	    00h successful
		ES:SI -> spool file status record (see #0570)
	    F0h not a spool file
	    FFh failed
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=E0h,AX=E302h,AX=E401h

Format of Disk Spool II spool file status record:
Offset	Size	Description	(Table 0570)
 00h	BYTE	hour of creation or last update
 01h	BYTE	minute of creation or last update
 02h	BYTE	year-1980 of creation or last update
 03h	BYTE	month of creation or last update
 04h	BYTE	day of creation or last update
 05h	BYTE	total number of copies to print
 06h	BYTE	number of copies already printed
 07h	BYTE	printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
 08h	BYTE	save status (00h delete after printing, 01h save)
 09h	BYTE	file status
		01h done printing, but being saved
		02h on hold
		03h queued for printing
		04h being spooled
		05h being despooled (i.e. printed)
 0Ah 16 BYTEs	ASCIZ description
 1Ah  2 WORDs	file size in bytes (high,low)
 1Eh  2 WORDs	bytes left to print (high,low)
--------c-1AE302-----------------------------
INT 1A - Disk Spool II v4.0x - UPDATE SPOOL FILE
	AX = E302h
	ES:BX -> ASCIZ filename (max 32 chars)
	ES:SI -> spool file status record (see #0570)
Return: AH = status
	    00h successful
	    F0h not a spool file
	    FFh failed
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=E0h,AX=E301h,AX=E401h
--------c-1AE401-----------------------------
INT 1A - Disk Spool II v4.0x - SPOOL EXISTING FILE
	AX = E401h
	ES:BX -> ASCIZ filename (max 32 chars)
	CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
Return: AH = status
	    00h successful
	    FFh failed
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=E1h,AX=E302h,AX=E402h
--------c-1AE402-----------------------------
INT 1A U - Disk Spool II v4.0x - SPOOL EXISTING FILE???
	AX = E402h
	ES:BX -> ASCIZ filename (max 32 chars)
	CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2)
Return: AH = status
	    00h successful
	    FFh failed
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=E1h,AX=E302h,AX=E401h
--------c-1AE5-------------------------------
INT 1A U - Emulaser ELSPL.COM - ???
	AH = E5h
	???
Return: ???
Program: ELSPL.COM is a licensed version of Disk Spool II which is distributed
	  as part of Vertisoft's Emulaser PostScript emulator
SeeAlso: AH=A0h,INT 17/AH=03h
--------c-1AEE-------------------------------
INT 1A U - Disk Spool II v4.05 - ???
	AH = EEh
	AL = printer port???
	???
Return: ???
Note:	this function is also supported by Vertisoft's Emulaser utility ELSPL,
	  as that is a licensed version of Disk Spool II
SeeAlso: AH=E1h
--------U-1AF7-------------------------------
INT 1A - RighTime v1.1 - TEMPORARILY DISABLE
	AH = F7h
Program: RighTime is a TSR by G.T. Becker which continuously adjusts the system
	  time to correct for clock drift
Note:	any AH value from F0h-F7h or F9h-FEh will perform this function in
	  version 1.1, but F7h is the function called by transient portion
SeeAlso: AH=F8h,AH=FFh"RighTime"
--------U-1AF8-------------------------------
INT 1A - RighTime v1.1 - ENABLE
	AH = F8h
Program: RighTime is a TSR by G.T. Becker which continuously adjusts the system
	  time to correct for clock drift
Note:	RighTime is TeSseRact-compatible (see INT 2F/AX=5453h) and modifies its
	  TeSseRact program identifier based on its current state: "RighTime"
	  when enabled, "RighTim"F7h when disabled.
SeeAlso: AH=F7h,AH=FFh"RighTime"
--------b-1AFE-------------------------------
INT 1A - AT&T 6300 - READ TIME AND DATE
	AH = FEh
Return: BX = day count (0 = Jan 1, 1984)
	CH = hour
	CL = minute
	DH = second
	DL = hundredths
SeeAlso: AX=CCCCh/BX=CCCCh,AH=FFh"AT&T",INT 21/AH=2Ah,INT 21/AH=2Ch
--------b-1AFF-------------------------------
INT 1A - AT&T 6300 - SET TIME AND DATE
	AH = FFh
	BX = day count (0 = Jan 1, 1984)
	CH = hour
	CL = minute
	DH = second
	DL = hundredths
Return: ???
SeeAlso: AX=CCCCh/BX=CCCCh,AH=FEh,INT 21/AH=2Bh,INT 21/AH=2Dh
--------U-1AFF-------------------------------
INT 1A - RighTime v1.1 - PERMANENTLY DISABLE
	AH = FFh
Program: RighTime is a TSR by G.T. Becker which continuously adjusts the system
	  time to correct for clock drift
Note:	upon being permanently disabled, RighTime closes the file handle
	  referencing its executable (which is updated with time correction
	  information every two minutes while RighTime is enabled).
--------s-1AFF00-----------------------------
INT 1A - SND - INSTALLATION CHECK???
	AX = FF00h
Return: AL = version??? (02h)
	AH = busy flag (00h if not in a SND call, 01h if SND currently active)
Note:	the SND API is also supported by IC (Internal Commands) v2.0, a
	  shareware TSR by Geoff Friesen which extends COMMAND.COM's internal
	  command set
SeeAlso: AX=FF01h,AX=FF02h,AX=FF04h,AX=FF05h
--------s-1AFF01-----------------------------
INT 1A - SND - PAUSE
	AX = FF01h
	DX = number of clock ticks to delay
Return: AH = status
	    00h successful
	    01h SND busy
Notes:	if successful, execution returns to the caller after the delay expires;
	  if SND is busy, execution returns immediately
	the IC v2.0 implementation of this API makes no special allowance for
	  time rollover at midnight, which can cause the delay to be over one
	  hour if this function is called just before the BIOS time count
	  rolls over and the delay extends into the next day
SeeAlso: AX=FF00h,INT 15/AH=86h,INT 62/AX=0096h,INT 7F/AH=E8h,INT 80/BX=0009h
SeeAlso: INT E0/CL=BDh
--------s-1AFF02-----------------------------
INT 1A - SND - START SOUND
	AX = FF02h
	DX = frequency in Hertz (14h-FFFFh)
Return: AH = status
	    00h successful
	    01h SND busy
SeeAlso: AX=FF00h,AX=FF01h,AX=FF03h
--------s-1AFF03-----------------------------
INT 1A - SND - STOP SOUND
	AX = FF03h
Return: AH = status
	    00h successful
	    01h busy
Note:	turns off any sound currently being emitted by the PC's speaker unless
	  SND is currently busy processing an API call (this includes
	  background music).  Use AX=FF05h to stop the sound even if an API
	  call is in progress.
SeeAlso: AX=FF00h,AX=FF02h,AX=FF05h
--------s-1AFF04-----------------------------
INT 1A - SND - PLAY MUSIC STRING IN BACKGROUND
	AX = FF04h
	DS:DX -> ASCIZ music string
Return: AH = status
		 00h successful (music begins playing in background)
	    01h busy
Note:	the music string accepted by SND is not the same as that accepted by
	  BASIC and other programs which process music strings
SeeAlso: AX=FF00h,AX=FF05h,INT 80/BX=0006h
--------s-1AFF05-----------------------------
INT 1A - SND - UNCONDITIONALLY STOP SOUND
	AX = FF05h
Return: AH = 00h (successful)
Note:	this function is the same as AX=FF03h, but will stop the sound even if
	  SND is currently busy, such as playing background music
SeeAlso: AX=FF00h,AX=FF03h,INT 80/BX=0007h
--------B-1B---------------------------------
INT 1B C - KEYBOARD - CONTROL-BREAK HANDLER
Desc:	this interrupt is automatically called when INT 09 determines that
	  Control-Break has been pressed
Note:	normally points to a short routine in DOS which sets the Ctrl-C flag,
	  thus invoking INT 23h the next time DOS checks for Ctrl-C.
SeeAlso: INT 23
--------B-1C---------------------------------
INT 1C - TIME - SYSTEM TIMER TICK
Desc:	this interrupt is automatically called on each clock tick by the INT 08
	  handler
Notes:	this is the preferred interrupt to chain when a program needs to be
	  invoked regularly
	not available on NEC 9800-series PCs
SeeAlso: INT 08,INT E2"PC Cluster"
--------B-1D---------------------------------
INT 1D - SYSTEM DATA - VIDEO PARAMETER TABLES
Note:	the default parameter table (see #0571) is located at F000h:F0A4h for
	  100% compatible BIOSes
SeeAlso: INT 10/AH=00h

Format of video parameters:
Offset	Size	Description	(Table 0571)
 00h 16 BYTEs	6845 register values for modes 00h and 01h
 10h 16 BYTEs	6845 register values for modes 02h and 03h
 20h 16 BYTEs	6845 register values for modes 04h and 05h
 30h 16 BYTEs	6845 register values for modes 06h and 07h
 40h	WORD	bytes in video buffer for modes 00h and 01h (0800h)
 42h	WORD	bytes in video buffer for modes 02h and 03h (1000h)
 44h	WORD	bytes in video buffer for modes 04h and 05h (4000h)
 46h	WORD	bytes in video buffer for mode 06h (4000h)
 48h  8 BYTEs	columns on screen for each of modes 00h through 07h
 50h  8 BYTEs	CRT controller mode bytes for each of modes 00h through 07h
Note:	QEMM v7.5 Stealth appears to copy only the first 40h bytes of this
	  table into always-accessible memory
--------B-1E---------------------------------
INT 1E - SYSTEM DATA - DISKETTE PARAMETERS
Note:	the default parameter table (see #0572) is located at F000h:EFC7h for
	  100% compatible BIOSes
SeeAlso: INT 13/AH=0Fh,INT 41,INT 4D/AH=0Ah

Format of diskette parameter table:
Offset	Size	Description	(Table 0572)
 00h	BYTE	first specify byte
		bits 7-4: step rate
		bits 3-0: head unload time (0Fh = 240 ms)
 01h	BYTE	second specify byte
		bits 7-1: head load time (01h = 4 ms)
		bit    0: non-DMA mode (always 0)
 02h	BYTE	delay until motor turned off (in clock ticks)
 03h	BYTE	bytes per sector (00h = 128, 01h = 256, 02h = 512, 03h = 1024)
 04h	BYTE	sectors per track
 05h	BYTE	length of gap between sectors (2Ah for 5.25", 1Bh for 3.5")
 06h	BYTE	data length (ignored if bytes-per-sector field nonzero)
 07h	BYTE	gap length when formatting (50h for 5.25", 6Ch for 3.5")
 08h	BYTE	format filler byte (default F6h)
 09h	BYTE	head settle time in milliseconds
 0Ah	BYTE	motor start time in 1/8 seconds
SeeAlso: #1878 at INT 4D/AH=09h
--------B-1F---------------------------------
INT 1F - SYSTEM DATA - 8x8 GRAPHICS FONT
Desc:	this vector points at 1024 bytes of graphics data, 8 bytes for each
	  character 80h-FFh
Note:	graphics data for characters 00h-7Fh stored at F000h:FA6Eh in 100%
	  compatible BIOSes
SeeAlso: INT 10/AX=5000h,INT 43
--------b-1F12-------------------------------
INT 1F U - C&T "SuperState" BIOS - POWER OFF
	AH = 12h
Return: none
Note:	POWER OFF
--------b-1F17-------------------------------
INT 1F U - C&T "SuperState" BIOS - EXECUTE FAR PROC ROUTINE ON SuperState
	AH = 17h
	ES:DI -> far procedure
Return: all registers except AH,ES,DI
Note:	You can change the BIOS area (F000h:0000h - F000h:FFFFh) only through
	  this function
--------b-1F19-------------------------------
INT 1F U - C&T "SuperState" BIOS - ENABLE AUTO WAKEUP AND SET TIME AND DATE
	AH = 19h
	AL = hour in BCD
	BH = minutes in BCD
	BL = seconds in BCD
	CH = year century in BCD (must be 19h)
	CL = year low in BCD
	DH = month in BCD
	DL = date in BCD
Return: CF clear
--------b-1F1C-------------------------------
INT 1F U - C&T "SuperState" BIOS - SET SUSPEND TIMEOUT
	AH = 1Ch
	BX = sec until suspend starts
Return: None	   
--------b-1F1D-------------------------------
INT 1F U - C&T "SuperState" BIOS - SET SLEEP TIMEOUT
	AH = 1Dh
	BX = sec until sleep starts
Return: None	   
--------J-1F90-------------------------------
INT 1F - NEC PC-9801 - COPY EXTENDED MEMORY
	AH = 90h
	ES:BX -> global descriptor table (see #0375 at INT 15/AH=87h)
	CX = number of bytes to copy
	SI = 0000h
	DI = 0000h
Return: CF clear if successful
	CF set on error
	???
SeeAlso: INT 15/AH=87h
--------b-1FF5--BLFA-------------------------
INT 1F U - C&T "SuperState" BIOS - REQUEST PASSWORD INPUT
	AH = F5h
	BL = FAh
Return: none
Note:	this function will not return until the correct password is entered
SeeAlso: AH=F5h/BL=FDh,AX=F5h/BL=FEh
--------b-1FF5--BLFD-------------------------
INT 1F U - C&T "SuperState" BIOS - ENCRYPT PASSWORD
	AH = F5h
	BL = FDh
	CX:SI = input string
	DX:DI = encrypted string
	BH = length of input string
Return: CF set on error
SeeAlso: AH=F5h/BL=FAh,AX=F5h/BL=FEh
--------b-1FF5--BLFE-------------------------
INT 1F U - C&T "SuperState" BIOS - SET PASSWORD
	AH = F5h
	BL = FEh
	CX:SI -> input string
	BH = length of input string (if BH = 00h, clear password)
Return: CF set on error
Note:	the input string must be encrypted by INT 1Fh/AH=F5h/BL=FDh
SeeAlso: AH=F5h/BL=FDh,AX=F5h/BL=FFh
--------b-1FF5--BLFF-------------------------
INT 1F U - C&T "SuperState" BIOS - GET ENCRYPTED PASSWORD
	AH = F5h
	BL = FFh
	DX:DI = string buffer
Return: CF set on error
	CF clear if successful
	    BH = length of input string (if BH = 00h, password is not valid)
	    DX:DI -> encrypted password string
SeeAlso: AH=F5h/BL=FDh,AX=F5h/BL=FEh
--------b-1FFB-------------------------------
INT 1F U - C&T "SuperState" BIOS - GET/SET CPU SPEED
	AH = FBh
	BL = function 
		 00h get CPU speed
		Return: AL = current CPU speed (00h = fast, 01h = slow)
	    01h set CPU speed
		AL = new CPU speed (00h = fast, 01h = slow)
SeeAlso: AH=FCh/BL=00h
--------b-1FFC--BL00-------------------------
INT 1F U - C&T "SuperState" BIOS - GET ALARM STATUS
	AH = FCh
	BL = 00h
Return: AL = current alarm state (00h = disabled, 01h = enabled)
SeeAlso: AH=FCh/BL=01h,AH=FCh/BL=02h
--------b-1FFC--BL01-------------------------
INT 1F U - C&T "SuperState" BIOS - SET ALARM STATUS
	AH = FCh
	BL = 01h
	AL = new alarm state (00h = disabled, 01h = enabled)
SeeAlso: AH=FCh/BL=00h,AH=FCh/BL=03h
--------b-1FFC--BL02-------------------------
INT 1F U - C&T "SuperState" BIOS - GET ALARM TIME
	AH = FCh
	BL = 02h
Return: CH = hour by BCD
	CL = min by BCD
	DH = sec by BCD
SeeAlso: AH=FCh/BL=00h,AH=FCh/BL=03h,AH=FCh/BL=04h
--------b-1FFC--BL03-------------------------
INT 1F U - C&T "SuperState" BIOS - SET ALARM TIME
	AH = FCh
	BL = 03h
	CH = hour by BCD
	CL = min by BCD
	DH = sec by BCD
Return: CF set on error (incorrect time format or Alarm is not enable) 
SeeAlso: AH=FCh/BL=01h,AH=FCh/BL=02h,AH=FCh/BL=05h
--------b-1FFC--BL04-------------------------
INT 1F U - C&T "SuperState" BIOS - GET ALARM DATE
	AH = FCh
	BL = 04h
Return: CH = year century by BCD
	CL = year low by BCD
	DH = month by BCD
	DL = date by BCD
SeeAlso: AH=FCh/BL=02h,AH=FCh/BL=05h
--------b-1FFC--BL05-------------------------
INT 1F U - C&T "SuperState" BIOS - SET ALARM DATE
	AH = FCh
	BL = 05h
	CH = year century by BCD
	CL = year low by BCD
	DH = month by BCD
	DL = date by BCD
Return: CF set on error (incorrect date format or Alarm is not enable) 
SeeAlso: AH=FCh/BL=03h,AH=FCh/BL=04h
--------b-1FFD--BL00-------------------------
INT 1F U - C&T "SuperState" BIOS - GET AUTO WAKE UP STATUS
	AH = FDh
	BL = 00h
Return: AL = current wake-up state (00h = disabled, 01h = enabled)
SeeAlso: AH=FDh/BL=01h,AH=FDh/BL=02h
--------b-1FFD--BL01-------------------------
INT 1F U - C&T "SuperState" BIOS - SET AUTO WAKE UP STATUS
	AH = FDh
	BL = 01h
	AL = new wake-up state (00h = disabled, 01h = enabled)
SeeAlso: AH=FDh/BL=00h,AH=FDh/BL=03h
--------b-1FFD--BL02-------------------------
INT 1F U - C&T "SuperState" BIOS - GET AUTO WAKE UP TIME
	AH = FDh
	BL = 02h
Return: CH = hour by BCD
	CL = min by BCD
	DH = sec by BCD
SeeAlso: AH=FDh/BL=00h,AH=FDh/BL=03h
--------b-1FFD-------------------------------
INT 1F U - C&T "SuperState" BIOS - SET AUTO WAKE UP TIME
       AH = FDh
       BL = 3h
       CH = hour by BCD
       CL = min by BCD
       DH = sec by BCD
Return: CF set on error (incorrect Time format or Auto Wake up is not enable) 
SeeAlso: AH=FDh/BL=01h,AH=FDh/BL=02h
--------b-1FFD--BL04-------------------------
INT 1F U - C&T "SuperState" BIOS - GET AUTO WAKE UP DATE
	AH = FDh
	BL = 04h
Return: CH = year century in BCD
	CL = year low in BCD
	DH = month in BCD
	DL = date in BCD
SeeAlso: AH=FDh/BL=02h,AH=FDh/BL=05h
--------b-1FFD--BL05-------------------------
INT 1F U - C&T "SuperState" BIOS - SET AUTO WAKE UP DATE
	AH = FDh
	BL = 05h
	CH = year century in BCD
	CL = year low in BCD
	DH = month in BCD
	DL = date in BCD
Return: CF set on error (incorrect date format or Auto Wake up is not enable) 
SeeAlso: AH=FDh/BL=03h,AH=FDh/BL=04h
--------O-20---------------------------------
INT 20 - Minix - SEND/RECEIVE MESSAGE
	AX = process ID of other process
	BX -> message
	CX = operation (1 send, 2 receive, 3 send&receive)
Program: Minix is a Version 7 Unix-compatible operating system by Andrew
	  Tanenbaum
Note:	the message contains the system call number (numbered as in V7
	  Unix(tm)) and the call parameters
--------D-20---------------------------------
INT 20 - DOS 1+ - TERMINATE PROGRAM
	CS = PSP segment
Return: never
Note:	(see INT 21/AH=00h)
SeeAlso: INT 21/AH=00h,INT 21/AH=4Ch
--------G-20---------------------------------
INT 20 - COMTROL HOSTESS i/ISA DEBUGGER - INVOKE FIRMWARE DEBUGGER
	???
Return: ???
SeeAlso: INT 21"COMTROL"
--------G-21---------------------------------
INT 21 - COMTROL HOSTESS i/ISA DEBUGGER - GET SEGMENT FOR CONTROL PROGRAM USE
	???
Return: AX = first segment available for control program use
SeeAlso: INT 20"COMTROL",INT 22"COMTROL"
--------D-2100-------------------------------
INT 21 - DOS 1+ - TERMINATE PROGRAM
	AH = 00h
	CS = PSP segment
Notes:	Microsoft recommends using INT 21/AH=4Ch for DOS 2+
	execution continues at the address stored in INT 22 after DOS performs
	  whatever cleanup it needs to do
	if the PSP is its own parent, the process's memory is not freed; if
	  INT 22 additionally points into the terminating program, the
	  process is effectively NOT terminated
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=26h,AH=31h,AH=4Ch,INT 20,INT 22
--------D-2101-------------------------------
INT 21 - DOS 1+ - READ CHARACTER FROM STANDARD INPUT, WITH ECHO
	AH = 01h
Return: AL = character read
Notes:	^C/^Break are checked, and INT 23 executed if read
	character is echoed to standard output
	standard input is always the keyboard and standard output the screen
	  under DOS 1.x, but they may be redirected under DOS 2+
SeeAlso: AH=06h,AH=07h,AH=08h,AH=0Ah
--------D-2102-------------------------------
INT 21 - DOS 1+ - WRITE CHARACTER TO STANDARD OUTPUT
	AH = 02h
	DL = character to write
Return: AL = last character output (despite the official docs which state
		nothing is returned) (at least DOS 3.3-5.0)
Notes:	^C/^Break are checked, and INT 23 executed if pressed
	standard output is always the screen under DOS 1.x, but may be
	  redirected under DOS 2+
	the last character output will be the character in DL unless DL=09h
	  on entry, in which case AL=20h as tabs are expanded to blanks
SeeAlso: AH=06h,AH=09h
--------D-2103-------------------------------
INT 21 - DOS 1+ - READ CHARACTER FROM STDAUX
	AH = 03h
Return: AL = character read
Notes:	keyboard checked for ^C/^Break, and INT 23 executed if detected
	STDAUX is usually the first serial port
SeeAlso: AH=04h,INT 14/AH=02h,INT E0/CL=03h
--------D-2104-------------------------------
INT 21 - DOS 1+ - WRITE CHARACTER TO STDAUX
	AH = 04h
	DL = character to write
Notes:	keyboard checked for ^C/^Break, and INT 23 executed if detected
	STDAUX is usually the first serial port
	if STDAUX is busy, this function will wait until it becomes free
SeeAlso: AH=03h,INT 14/AH=01h,INT E0/CL=04h
--------D-2105-------------------------------
INT 21 - DOS 1+ - WRITE CHARACTER TO PRINTER
	AH = 05h
	DL = character to print
Notes:	keyboard checked for ^C/^Break, and INT 23 executed if detected
	STDPRN is usually the first parallel port, but may be redirected under
	  DOS 2+
	if the printer is busy, this function will wait
SeeAlso: INT 17/AH=00h
--------D-2106-------------------------------
INT 21 - DOS 1+ - DIRECT CONSOLE OUTPUT
	AH = 06h
	DL = character (except FFh)
Return: AL = character output (despite official docs which state nothing is
		returned) (at least DOS 3.3-5.0)
Notes:	does not check ^C/^Break
	writes to standard output, which is always the screen under DOS 1.x,
	  but may be redirected under DOS 2+
SeeAlso: AH=02h,AH=09h
--------D-2106--DLFF-------------------------
INT 21 - DOS 1+ - DIRECT CONSOLE INPUT
	AH = 06h
	DL = FFh
Return: ZF set if no character available
	    AL = 00h
	ZF clear if character available
	    AL = character read
Notes:	^C/^Break are NOT checked
	if the returned character is 00h, the user pressed a key with an
	  extended keycode, which will be returned by the next call of this
	  function
	this function reads from standard input, which is always the keyboard
	  under DOS 1.x, but may be redirected under DOS 2+
	although the return of AL=00h when no characters are available is not
	  documented, some programs rely on this behavior
SeeAlso: AH=0Bh
--------D-2107-------------------------------
INT 21 - DOS 1+ - DIRECT CHARACTER INPUT, WITHOUT ECHO
	AH = 07h
Return: AL = character read from standard input
Notes:	does not check ^C/^Break
	standard input is always the keyboard under DOS 1.x, but may be
	  redirected under DOS 2+
	if the interim console flag is set (see AX=6301h), partially-formed
	  double-byte characters may be returned
SeeAlso: AH=01h,AH=06h,AH=08h,AH=0Ah
--------D-2108-------------------------------
INT 21 - DOS 1+ - CHARACTER INPUT WITHOUT ECHO
	AH = 08h
Return: AL = character read from standard input
Notes:	^C/^Break are checked, and INT 23 executed if detected
	standard input is always the keyboard under DOS 1.x, but may be
	  redirected under DOS 2+
	if the interim console flag is set (see AX=6301h), partially-formed
	  double-byte characters may be returned
SeeAlso: AH=01h,AH=06h,AH=07h,AH=0Ah,AH=64h
--------D-2109-------------------------------
INT 21 - DOS 1+ - WRITE STRING TO STANDARD OUTPUT
	AH = 09h
	DS:DX -> '$'-terminated string
Return: AL = 24h (the '$' terminating the string, despite official docs which
		state that nothing is returned) (at least DOS 3.3-5.0)
Notes:	^C/^Break are checked, and INT 23 is called if either pressed
	standard output is always the screen under DOS 1.x, but may be
	  redirected under DOS 2+
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=02h,AH=06h"OUTPUT"
--------D-210A-------------------------------
INT 21 - DOS 1+ - BUFFERED INPUT
	AH = 0Ah
	DS:DX -> buffer (see #0573)
Return: buffer filled with user input
Notes:	^C/^Break are checked, and INT 23 is called if either detected
	reads from standard input, which may be redirected under DOS 2+
	if the maximum buffer size (see #0573) is set to 00h, this call returns
	  immediately without reading any input
SeeAlso: AH=0Ch,INT 2F/AX=4810h

Format of DOS input buffer:
Offset	Size	Description	(Table 0573)
 00h	BYTE	maximum characters buffer can hold
 01h	BYTE	(call) number of chars from last input which may be recalled
		(ret) number of characters actually read, excluding CR
 02h  N BYTEs	actual characters read, including the final carriage return
--------K-210A00-----------------------------
INT 21 - WCED v1.6+ - INSTALLATION CHECK
	AX = 0A00h
	DS:DX -> 6-byte buffer whose first two bytes must be 00h
Return: buffer offset 02h-05h filled with "Wced" if installed
Program: WCED is a free command-line editor and history utility by Stuart
	  Russell
SeeAlso: AH=FFh"CED"
--------D-210B-------------------------------
INT 21 - DOS 1+ - GET STDIN STATUS
	AH = 0Bh
Return: AL = status
	    00h if no character available
	    FFh if character is available
Notes:	^C/^Break are checked, and INT 23 is called if either pressed
	standard input is always the keyboard under DOS 1.x, but may be
	  redirected under DOS 2+
	if the interim console flag is set (see AX=6301h), this function
	  returns AL=FFh if a partially-formed double-byte character is
	  available
SeeAlso: AH=06h"INPUT",AX=4406h
--------v-210B56-----------------------------
INT 21 - VIRUS - "Perfume" - INSTALLATION CHECK
	AX = 0B56h
Return: AX = 4952h if resident
SeeAlso: AX=0D20h,INT 12/AX=4350h/BX=4920h,INT 13/AH=F2h
--------D-210C-------------------------------
INT 21 - DOS 1+ - FLUSH BUFFER AND READ STANDARD INPUT
	AH = 0Ch
	AL = STDIN input function to execute after flushing buffer
	other registers as appropriate for the input function
Return: as appropriate for the specified input function
Note:	if AL is not one of 01h,06h,07h,08h, or 0Ah, the buffer is flushed but
	  no input is attempted
SeeAlso: AH=01h,AH=06h"INPUT",AH=07h,AH=08h,AH=0Ah
--------D-210D-------------------------------
INT 21 - DOS 1+ - DISK RESET
	AH = 0Dh
Return: (DOS 6 only) CF clear (earlier versions preserve CF)
Notes:	This function writes all modified disk buffers to disk, but does not
	  update the directory information (that is only done when files are
	  closed or a SYNC call is issued)
SeeAlso: AX=5D01h,INT 13/AH=00h,INT 2F/AX=1120h
--------v-210D20-----------------------------
INT 21 - VIRUS - "Crazy Imp" - INSTALLATION CHECK
	AX = 0D20h
Return: AX = 1971h if resident
SeeAlso: AX=0B56h,AH=30h/DX=ABCDh
--------D-210E-------------------------------
INT 21 - DOS 1+ - SELECT DEFAULT DRIVE
	AH = 0Eh
	DL = new default drive (00h = A:, 01h = B:, etc)
Return: AL = number of potentially valid drive letters
Notes:	under Novell NetWare, the return value is always 32, the number of
	  drives that NetWare supports
	under DOS 3+, the return value is the greatest of 5, the value of
	  LASTDRIVE= in CONFIG.SYS, and the number of drives actually present
	on a DOS 1.x/2.x single-floppy system, AL returns 2 since the floppy
	  may be accessed as either A: or B:
	otherwise, the return value is the highest drive actually present
	DOS 1.x supports a maximum of 16 drives, 2.x a maximum of 63 drives,
	  and 3+ a maximum of 26 drives
SeeAlso: AH=19h,AH=3Bh,AH=DBh
--------v-210E--DLAD-------------------------
INT 21 U - Novell DOS 7 - SDRes v27.03 - INSTALLATION CHECK
	AH = 0Eh
	DL = ADh
Return: AL = BAh if installed
Program: SDRes is the resident portion of the Search&Destroy antiviral by
	  Fifth Generation Systems, as bundled with Novell DOS 7
Note:	SDRes will terminate programs which test for the presence of viruses
	  using interrupt-based installation calls, saying that the program
	  may be infected
SeeAlso: AH=0Eh/DL=AEh,AH=0Eh/DL=AFh,AH=4Ah/BX=00B6h,INT 13/AX=A759h
--------v-210E--DLAE-------------------------
INT 21 U - Novell DOS 7 - SDRes v27.03 - CLEAR ??? FLAG
	AH = 0Eh
	DL = AEh
SeeAlso: AH=0Eh/DL=ADh,AH=0Eh/DL=AFh,INT 13/AX=A759h
--------v-210E--DLAF-------------------------
INT 21 U - Novell DOS 7 - SDRes v27.03 - SET ??? FLAG
	AH = 0Eh
	DL = AFh
SeeAlso: AH=0Eh/DL=ADh,AH=0Eh/DL=AEh,INT 13/AX=A759h
--------D-210F-------------------------------
INT 21 - DOS 1+ - OPEN FILE USING FCB
	AH = 0Fh
	DS:DX -> unopened File Control Block (see #0574)
Return: AL = status
	    00h successful
	    FFh file not found or access denied
Notes:	(DOS 3.1+) file opened for read/write in compatibility mode
	an unopened FCB has the drive, filename, and extension fields filled
	  in and all other bytes cleared
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
	DR-DOS checks password attached with AX=4303h
BUG:	APPEND for DOS 3.3+ corrupts DX if the file is not found
SeeAlso: AH=10h,AH=16h,AH=3Dh,AX=4303h

Format of File Control Block:
Offset	Size	Description	(Table 0574)
 -7	BYTE	extended FCB if FFh
 -6   5 BYTEs	reserved
 -1	BYTE	file attribute if extended FCB
 00h	BYTE	drive number (0 = default, 1 = A, etc)
 01h  8 BYTEs	blank-padded file name
 09h  3 BYTEs	blank-padded file extension
 0Ch	WORD	current block number
 0Eh	WORD	logical record size
 10h	DWORD	file size
 14h	WORD	date of last write (see #0877 at AX=5700h)
 16h	WORD	time of last write (see #0876 at AX=5700h) (DOS 1.1+)
 18h  8 BYTEs	reserved (see #0575,#0576,#0577,#0578,#0579)
 20h	BYTE	record within current block
 21h	DWORD	random access record number (if record size is > 64 bytes, high
		  byte is omitted)
Note:	to use an extended FCB, you must specify the address of the FFh flag at
	  offset -7, rather than the address of the drive number field

Format of FCB reserved field for DOS 1.0:
Offset	Size	Description	(Table 0575)
 16h	WORD	location in directory (if high byte = FFh, low byte is device
		  ID)
 18h	WORD	number of first cluster in file
 1Ah	WORD	current absolute cluster number on disk
 1Ch	WORD	current relative cluster number within file
		(0 = first cluster of file, 1 = second cluster, etc.)
 1Eh	BYTE	dirty flag (00h = not dirty)
 1Fh	BYTE	unused

Format of FCB reserved field for DOS 1.10-1.25:
Offset	Size	Description	(Table 0576)
 18h	BYTE	bit 7: set if logical device
		bit 6: not dirty
		bits 5-0: disk number or logical device ID
 19h	WORD	starting cluster number on disk
 1Bh	WORD	current absolute cluster number on disk
 1Dh	WORD	current relative cluster number within file
 1Fh	BYTE	unused

Format of FCB reserved field for DOS 2.x:
Offset	Size	Description	(Table 0577)
 18h	BYTE	bit 7: set if logical device
		bit 6: set if open???
		bits 5-0: ???
 19h	WORD	starting cluster number on disk
 1Bh	WORD	???
 1Dh	BYTE	???
 1Eh	BYTE	???
 1Fh	BYTE	???

Format of FCB reserved field for DOS 3.x:
Offset	Size	Description	(Table 0578)
 18h	BYTE	number of system file table entry for file
 19h	BYTE	attributes
		bits 7,6: 00 = SHARE.EXE not loaded, disk file
			  01 = SHARE.EXE not loaded, character device
			  10 = SHARE.EXE loaded, remote file
			  11 = SHARE.EXE loaded, local file or device
		bits 5-0: low six bits of device attribute word
---SHARE.EXE loaded, local file---
 1Ah	WORD	starting cluster of file on disk
 1Ch	WORD	(DOS 3.x) offset within SHARE of sharing record
		  (see #0849 at AH=52h)
 1Eh	BYTE	file attribute
 1Fh	BYTE	???
---SHARE.EXE loaded, remote file---
 1Ah	WORD	number of sector containing directory entry
 1Ch	WORD	relative cluster within file of last cluster accessed
 1Eh	BYTE	absolute cluster number of last cluster accessed
 1Fh	BYTE	???
---SHARE.EXE not loaded---
 1Ah	BYTE	(low byte of device attribute word AND 0Ch) OR open mode
 1Bh	WORD	starting cluster of file
 1Dh	WORD	number of sector containing directory entry
 1Fh	BYTE	number of directory entry within sector
Note:	if FCB opened on character device, DWORD at 1Ah is set to the address
	  of the device driver header, then the BYTE at 1Ah is overwritten.

Format of FCB reserved field for DOS 5.0:
Offset	Size	Description	(Table 0579)
 18h	BYTE	number of system file table entry for file
 19h	BYTE	attributes
		bits 7,6: 00 = SHARE.EXE not loaded, disk file
			  01 = SHARE.EXE not loaded, character device
			  10 = SHARE.EXE loaded, remote file
			  11 = SHARE.EXE loaded, local file or device
		bits 5-0: low six bits of device attribute word
---SHARE.EXE loaded, local file---
 1Ah	WORD	starting cluster of file on disk
 1Ch	WORD	unique sequence number of sharing record
 1Eh	BYTE	file attributes
 1Fh	BYTE	unused???
---SHARE.EXE loaded, remote file---
 1Ah	WORD	network handle
 1Ch	DWORD	network ID
---SHARE not loaded, local device---
 1Ah	DWORD	pointer to device driver header
 1Eh  2 BYTEs	unused???
---SHARE not loaded, local file---
 1Ah	BYTE	extra info
		bit 7: read-only attribute from SFT
		bit 6: archive attribute from SFT
		bits 5-0: high bits of sector number
 1Bh	WORD	starting cluster of file
 1Dh	WORD	low word of sector number containing directory entry
 1Fh	BYTE	number of directory entry within sector
--------D-2110-------------------------------
INT 21 - DOS 1+ - CLOSE FILE USING FCB
	AH = 10h
	DS:DX -> File Control Block (see #0574)
Return: AL = status
	    00h successful
	    FFh failed
Notes:	a successful close forces all disk buffers used by the file to be
	  written and the directory entry to be updated
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=0Fh,AH=16h,AH=3Eh
--------D-2111-------------------------------
INT 21 - DOS 1+ - FIND FIRST MATCHING FILE USING FCB
	AH = 11h
	DS:DX -> unopened FCB (see #0574), may contain '?' wildcards
Return: AL = status
	    00h successful
		[DTA] unopened FCB for first matching file
		 FFh no matching filename, or bad FCB
Notes:	the type of the returned FCB depends on whether the input FCB was a
	  normal or an extended FCB
	the data returned in the DTA is actually the drive number (or extended
	  FCB header and drive number) followed by the file's directory entry
	  (see #0580); this format happens to be compatible with an unopened
	  FCB
	for extended FCBs with search attribute 08h, the volume label (if any)
	  will be returned even if the current directory is not the root dir.
	DOS 3+ also allows the '*' wildcard
	the search FCB must not be modified if AH=12h will be used to continue
	  searching; DOS 3.3 has set the following parts of the FCB:
		 0Ch	BYTE	???
		 0Dh	WORD	directory entry number of matching file
		 0Fh	WORD	cluster number of current directory
		 11h  4 BYTEs	???
		 15h	BYTE	drive number (1=A:)
	this function is used by many copy protection schemes to obtain the
	  starting cluster of a file
SeeAlso: AH=12h,AH=1Ah,AH=4Eh,INT 2F/AX=111Bh

Format of DOS directory entry:
Offset	Size	Description	(Table 0580)
 00h  8 BYTEs	blank-padded filename
 08h  3 BYTEs	blank-padded file extension
 0Bh	BYTE	attributes
 0Ch 10 BYTEs	reserved
		used by DR-DOS to store file password
 16h	WORD	time of creation or last update (see #0876 at AX=5700h)
 18h	WORD	date of creation or last update (see #0877 at AX=5700h)
 1Ah	WORD	starting cluster number
 1Ch	DWORD	file size
--------D-2112-------------------------------
INT 21 - DOS 1+ - FIND NEXT MATCHING FILE USING FCB
	AH = 12h
	DS:DX -> unopened FCB (see #0574)
Return: AL = status
	    00h successful
		[DTA] = unopened FCB
	    FFh no more matching filenames
Note:	(see AH=11h)
	assumes that successful FindFirst executed on search FCB before call
SeeAlso: AH=1Ah,AH=4Fh,INT 2F/AX=111Ch
--------D-2113-------------------------------
INT 21 - DOS 1+ - DELETE FILE USING FCB
	AH = 13h
	DS:DX -> unopened FCB (see #0574), filename filled with template for
		deletion ('?' wildcards allowed)
Return: AL = status
	    00h one or more files successfully deleted
	    FFh no matching files or all were read-only or locked
Notes:	DOS 1.25+ deletes everything in the current directory (including
	  subdirectories) and sets the first byte of the name to 00h (entry
	  never used) instead of E5h if called on an extended FCB with
	  filename '???????????' and bits 0-4 of the attribute set (bits 1 and
	  2 for DOS 1.x).  This may have originally been an optimization to
	  minimize directory searching after a mass deletion (DOS 1.25+ stop
	  the directory search upon encountering a never-used entry), but can
	  corrupt the filesystem under DOS 2+ because subdirectories are
	  removed without deleting the files they contain.
	currently-open files should not be deleted
	MS-DOS allows deletion of read-only files with an extended FCB, whereas
	  Novell NetWare, DR-DOS 6, and Novell DOS 7 do not
SeeAlso: AH=41h,INT 2F/AX=1113h
--------D-2114-------------------------------
INT 21 - DOS 1+ - SEQUENTIAL READ FROM FCB FILE
	AH = 14h
	DS:DX -> opened FCB (see #0574)
Return: AL = status
		 00h successful
	    01h end of file (no data)
	    02h segment wrap in DTA
	    03h end of file, partial record read
	[DTA] = record read from file
Notes:	reads a record of the size specified in the FCB beginning at the
	  current file position, then updates the current block and current
	  record fields in the FCB
	if a partial record was read, it is zero-padded to the full size
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=0Fh,AH=15h,AH=1Ah,AH=3Fh,INT 2F/AX=1108h
--------D-2115-------------------------------
INT 21 - DOS 1+ - SEQUENTIAL WRITE TO FCB FILE
	AH = 15h
	DS:DX -> opened FCB (see #0574)
	[DTA] = record to write
Return: AL = status
	    00h successful
	    01h disk full
	    02h segment wrap in DTA
Notes:	writes a record of the size specified in the FCB beginning at the
	  current file position, then updates the current block and current
	  record fields in the FCB
	if less than a full sector is written, the data is placed in a DOS
	  buffer to be written out at a later time
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=0Fh,AH=14h,AH=1Ah,AH=40h,INT 2F/AX=1109h
--------D-2116-------------------------------
INT 21 - DOS 1+ - CREATE OR TRUNCATE FILE USING FCB
	AH = 16h
	DS:DX -> unopened FCB (see #0574), wildcards not allowed
Return: AL = status
	    00h successful
	    FFh directory full or file exists and is read-only or locked
Notes:	if file already exists, it is truncated to zero length
	if an extended FCB is used, the file is given the attribute in the
	  FCB; this is how to create a volume label in the disk's root dir
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=0Fh,AH=10h,AH=3Ch
--------D-2117-------------------------------
INT 21 - DOS 1+ - RENAME FILE USING FCB
	AH = 17h
	DS:DX -> modified FCB (see also #0574)
		the old filename ('?' wildcards OK) is in the standard location
		while the new filename ('?' wildcards OK) is stored in the 11
		bytes beginning at offset 11h
Return: AL = status
	    00h successfully renamed
	    FFh no matching files,file is read-only, or new name already exists
Notes:	subdirectories may be renamed using an extended FCB with the
	  appropriate attribute, as may volume labels
	DR-DOS checks password attached with AX=4303h before permitting rename
SeeAlso: AH=0Fh,AH=13h,AX=4303h,AH=56h,INT 2F/AX=1111h
--------D-2118-------------------------------
INT 21 - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY
	AH = 18h
Return: AL = 00h
Note:	corresponds to the CP/M BDOS function "get bit map of logged drives",
	  which is meaningless under MS-DOS
SeeAlso: AH=1Dh,AH=1Eh,AH=20h,AX=4459h,INT 60/DI=0513h
--------D-2119-------------------------------
INT 21 - DOS 1+ - GET CURRENT DEFAULT DRIVE
	AH = 19h
Return: AL = drive (00h = A:, 01h = B:, etc)
Note:	Novell NetWare uses the fact that DOS 2.x COMMAND.COM issues this call
	  from a particular location every time it starts a command to
	  determine when to issue an automatic EOJ
SeeAlso: AH=0Eh,AH=47h,AH=BBh
--------D-211A-------------------------------
INT 21 - DOS 1+ - SET DISK TRANSFER AREA ADDRESS
	AH = 1Ah
	DS:DX -> Disk Transfer Area (DTA)
Notes:	the DTA is set to PSP:0080h when a program is started
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=11h,AH=12h,AH=2Fh,AH=4Eh,AH=4Fh
--------D-211B-------------------------------
INT 21 - DOS 1+ - GET ALLOCATION INFORMATION FOR DEFAULT DRIVE
	AH = 1Bh
Return: AL = sectors per cluster (allocation unit)
	CX = bytes per sector
	DX = total number of clusters
	DS:BX -> media ID byte (see #0581)
Note:	under DOS 1.x, DS:BX points at an actual copy of the FAT; later
	  versions return a pointer to a copy of the FAT's ID byte
SeeAlso: AH=1Ch,AH=36h

(Table 0581)
Values for media ID byte:
 FFh	floppy, double-sided, 8 sectors per track (320K)
 FEh	floppy, single-sided, 8 sectors per track (160K)
 FDh	floppy, double-sided, 9 sectors per track (360K)
 FCh	floppy, single-sided, 9 sectors per track (180K)
 FAh	HP 200LX D: ROM disk, 16 sectors per track (995K)
	HP 200LX E: (Stacker host drive ???)
 F9h	floppy, double-sided, 15 sectors per track (1.2M)
	floppy, double-sided, 9 sectors per track (720K,3.5")
 F8h	hard disk
 F0h	other media
	(e.g. floppy, double-sized, 18 sectors per track -- 1.44M,3.5")
--------D-211C-------------------------------
INT 21 - DOS 1+ - GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE
	AH = 1Ch
	DL = drive (00h = default, 01h = A:, etc)
Return: AL = sectors per cluster (allocation unit), or FFh if invalid drive
	CX = bytes per sector
	DX = total number of clusters
	DS:BX -> media ID byte (see #0581)
Notes:	under DOS 1.x, DS:BX points at an actual copy of the FAT; later
	  versions return a pointer to a copy of the FAT's ID byte
	on a DBLSPACE drive, the total number of clusters is based on the
	  estimated compression ratio
SeeAlso: AH=1Bh,AH=36h
--------D-211D-------------------------------
INT 21 - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY
	AH = 1Dh
Return: AL = 00h
Note:	corresponds to the CP/M BDOS function "get bit map of read-only
	  drives", which is meaningless under MS-DOS
SeeAlso: AH=18h,AH=1Eh,AH=20h,AX=4459h
--------D-211E-------------------------------
INT 21 - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY
	AH = 1Eh
Return: AL = 00h
Note:	corresponds to the CP/M BDOS function "set file attributes" which was
	 meaningless under MS-DOS 1.x
SeeAlso: AH=18h,AH=1Dh,AH=20h
--------D-211F-------------------------------
INT 21 - DOS 1+ - GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE
	AH = 1Fh
Return: AL = status
	    00h successful
		DS:BX -> Drive Parameter Block (DPB) (see #0582 for DOS 1.x,
			AH=32h for DOS 2+)
	    FFh invalid drive
Note:	this call was undocumented prior to the release of DOS 5.0; however,
	  only the DOS 4+ version of the DPB has been documented
SeeAlso: AH=32h

Format of DOS 1.1 and MS-DOS 1.25 drive parameter block:
Offset	Size	Description	(Table 0582)
 00h	BYTE	sequential device ID
 01h	BYTE	logical drive number (0=A:)
 02h	WORD	bytes per sector
 04h	BYTE	highest sector number within a cluster
 05h	BYTE	shift count to convert clusters into sectors
 06h	WORD	starting sector number of first FAT
 08h	BYTE	number of copies of FAT
 09h	WORD	number of directory entries
 0Bh	WORD	number of first data sector
 0Dh	WORD	highest cluster number (number of data clusters + 1)
 0Fh	BYTE	sectors per FAT
 10h	WORD	starting sector of directory
 12h	WORD	address of allocation table
Note:	the DOS 1.0 table is the same except that the first and last fields
	  are missing; see INT 21/AH=32h for the DOS 2+ version
--------D-2120-------------------------------
INT 21 - DOS 1+ - NULL FUNCTION FOR CP/M COMPATIBILITY
	AH = 20h
Return: AL = 00h
Note:	corresponds to the CP/M BDOS function "get/set default user
	  (sublibrary) number", which is meaningless under MS-DOS
SeeAlso: AH=18h,AH=1Dh,AH=1Eh,AX=4459h
--------D-2121-------------------------------
INT 21 - DOS 1+ - READ RANDOM RECORD FROM FCB FILE
	AH = 21h
	DS:DX -> opened FCB (see #0574)
Return: AL = status
	    00h successful
	    01h end of file, no data read
	    02h segment wrap in DTA, no data read
	    03h end of file, partial record read
	[DTA] = record read from file
Notes:	the record is read from the current file position as specified by the
	  random record and record size fields of the FCB
	the file position is not updated after reading the record
	if a partial record is read, it is zero-padded to the full size
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=14h,AH=22h,AH=27h,AH=3Fh
--------D-2122-------------------------------
INT 21 - DOS 1+ - WRITE RANDOM RECORD TO FCB FILE
	AH = 22h
	DS:DX -> opened FCB (see #0574)
	[DTA] = record to write
Return: AL = status
		 00h successful
	    01h disk full
	    02h segment wrap in DTA
Notes:	the record is written to the current file position as specified by the
	  random record and record size fields of the FCB
	the file position is not updated after writing the record
	if the record is located beyond the end of the file, the file is
	  extended but the intervening data remains uninitialized
	if the record only partially fills a disk sector, it is copied to a
	  DOS disk buffer to be written out to disk at a later time
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=15h,AH=21h,AH=28h,AH=40h
--------D-2123-------------------------------
INT 21 - DOS 1+ - GET FILE SIZE FOR FCB
	AH = 23h
	DS:DX -> unopened FCB (see #0574), wildcards not allowed
Return: AL = status
	    00h successful (matching file found)
		FCB random record field filled with size in records, rounded up
		to next full record
	    FFh failed (no matching file found)
Notes:	not supported by MS Windows 3.0 DOSX.EXE DOS extender
	MS-DOS returns nonsense if the FCB record number field is set to a very
	  large positive number, and status FFh if negative; DR-DOS returns the
	  correct file size in both cases
BUG:	APPEND for DOS 3.3+ corrupts DX if the file is not found
SeeAlso: AH=42h
--------D-2124-------------------------------
INT 21 - DOS 1+ - SET RANDOM RECORD NUMBER FOR FCB
	AH = 24h
	DS:DX -> opened FCB (see #0574)
Notes:	computes the random record number corresponding to the current record
	  number and record size, then stores the result in the FCB
	normally used when switching from sequential to random access
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=21h,AH=27h,AH=42h
--------D-2125-------------------------------
INT 21 - DOS 1+ - SET INTERRUPT VECTOR
	AH = 25h
	AL = interrupt number
	DS:DX -> new interrupt handler
Notes:	this function is preferred over direct modification of the interrupt
	  vector table
	some DOS extenders place an API on this function, as it is not
	  directly meaningful in protected mode
	under DR-DOS 5.0+, this function does not use any of the DOS-internal
	  stacks and may thus be called at any time
	Novell NetWare (except the new DOS Requester) monitors the offset of
	  any INT 24 set, and if equal to the value at startup, substitutes
	  its own handler to allow handling of network errors; this introduces
	  the potential bug that any program whose INT 24 handler offset
	  happens to be the same as COMMAND.COM's will not have its INT 24
	  handler installed
SeeAlso: AX=2501h,AH=35h
--------E-212501-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - RESET DOS EXTENDER DATA STRUCTURES
	AX = 2501h
	SS = application's original SS or DS (FlashTek X-32VM)
Return: CF clear if successful
	CF set on error
	    caller is operating on X-32 stack (FlashTek X-32VM)
Notes:	Phar Lap uses INT 21/AH=25h as the entry point for all 386/DOS-Extender
	  system calls.	 Only available when directly using 386/DOS-Extender or
	  a compatible DOS extender, or when using a product that was created
	  using 386-DOS/Extender or a compatible
	this function is also supported by FlashTek X-32VM
SeeAlso: AH=30h"Phar Lap"
--------E-212502-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET PROTECTED-MODE INTERRUPT VECTOR
	AX = 2502h
	CL = interrupt number
Return: CF clear
	ES:EBX = CS:EIP of protected-mode interrupt handler
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2503h,AX=2504h,INT 31/AX=0204h
--------E-212503-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET REAL-MODE INTERRUPT VECTOR
	AX = 2503h
	CL = interrupt number
Return: CF clear
	EBX = CS:IP of real-mode interrupt handler
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2502h,AX=2504h,AH=35h,INT 31/AX=0200h
--------E-212504-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - SET PROTECTED-MODE INTERRUPT VECTOR
	AX = 2504h
	CL = interrupt number
	DS:EDX = CS:EIP of protected-mode interrupt handler
Return: CF clear
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2502h,AX=2505h,INT 31/AX=0205h
--------E-212505-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - SET REAL-MODE INTERRUPT VECTOR
	AX = 2505h
	CL = interrupt number
	EBX = CS:IP of real-mode interrupt handler
Return: CF clear
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2503h,AX=2504h,INT 31/AX=0201h
--------E-212506-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - SET INT TO ALWAYS GAIN CNTRL IN PR. MODE
	AX = 2506h
	CL = interrupt number
	DS:EDX = CS:EIP of protected-mode interrupt handler
Return: CF clear
Notes:	this function modifies both the real-mode low-memory interrupt
	  vector table and the protected-mode Interrupt Descriptor Table (IDT)
	interrupts occurring in real mode are resignaled in protected mode
	this function is also supported by FlashTek X-32VM
--------E-212507-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - SET REAL- & PROTECTED-MODE INT VECTORS
	AX = 2507h
	CL = interrupt number
	DS:EDX = CS:EIP of protected-mode interrupt handler
	EBX = CS:IP of real-mode interrupt handler
Return: CF clear
Notes:	interrupts are disabled until both vectors have been modified
	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2504h,AX=2505h
--------E-212508-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET SEGMENT LINEAR BASE ADDRESS
	AX = 2508h
	BX = segment selector
Return: CF clear if successful
	    ECX = linear base address of segment
	CF set if invalid segment selector
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2509h
--------E-212509-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - CONVERT LINEAR TO PHYSICAL ADDRESS
	AX = 2509h
	EBX = linear address to convert
Return: CF clear if successful
	    ECX = physical address (carry flag clear)
	CF set if linear address not mapped in page tables
SeeAlso: AX=2508h
--------E-212509-----------------------------
INT 21 P - FlashTek X-32VM - GET SYSTEM SEGMENTS AND SELECTORS
	AX = 2509h
Return: CF clear
	EAX high word = default DS
	AX = alias for 16-bit data segment
	BX = real mode code segment
	EDX high word = selector covering full 4GB address space
	DX = default SS
	ESI high word = PSP selector
	SI = environment selector
--------E-21250A-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - MAP PHYSICAL MEMORY AT END OF SEGMENT
	AX = 250Ah
	ES = segment selector in the Local Descriptor Table (LDT) of segment
	     to modify
	EBX = physical base address of memory to map (multiple of 4K)
	ECX = number of physical 4K pages to map
Return: CF clear if successful
	    EAX = 32-bit offset in segment of mapped memory
	CF set on error
	    EAX = error code
		08h insufficient memory to create page tables
		09h invalid segment selector
SeeAlso: INT 31/AX=0800h
--------E-21250C-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET HARDWARE INTERRUPT VECTORS
	AX = 250Ch
Return: CF clear
	AL = base interrupt vector for IRQ0-IRQ7
	AH = base interrupt vector for IRQ8-IRQ15
	BL = interrupt vector for BIOS print screen function (Phar Lap only)
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: INT 31/AX=0400h,INT 67/AX=DE0Ah
--------E-21250D-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET REAL-MODE LINK INFORMATION
	AX = 250Dh
Return: CF clear
	EAX = CS:IP of real-mode callback procedure (see #0583) that will
		  call through from real mode to a protected-mode routine
	EBX = 32-bit real-mode address of intermode call data buffer
	ECX = size in bytes of intermode call data buffer
	ES:EDX = protected-mode address of intermode call data buffer
Notes:	this function is also supported by FlashTek X-32VM
	X-32VM guarantees the intermode buffer to be at least 4 KB
SeeAlso: AX=250Eh

(Table 0583)
Call Phar Lap real-mode callback with:
	STACK:	DWORD	offset to protected-mode code
		WORD	placeholder for protected-mode CS
		DWORD	pointer to selector structure (see #0584)
			or 0000h:0000h for defaults
		var	parameters for protected-mode procedure
Return: via FAR return

Format of Phar Lap selector structure:
Offset	Size	Description	(Table 0584)
 00h	WORD	protected-mode GS selector
 02h	WORD	protected-mode FS selector
 04h	WORD	protected-mode ES selector
 06h	WORD	protected-mode DS selector
--------E-21250E-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - CALL REAL-MODE PROCEDURE
	AX = 250Eh
	EBX = CS:IP of real-mode procedure to call
	ECX = number of two-byte words to copy from protected-mode stack
	      to real-mode stack
Return: CF clear if successful
	    all segment registers unchanged
	    all general registers contain values set by real-mode procedure
		 all other flags set as they were left by real-mode procedure
	    stack unchanged
	CF set on error
	    EAX = error code
		01h not enough real-mode stack space
Note:	this function is also supported by FlashTek X-32VM; under X-32VM, the
	  call will fail if ECX > 0000003Fh
SeeAlso: AX=250Dh,AX=2510h,AH=E1h"OS/286",INT 31/AX=0301h
--------E-21250F-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - CONVERT PROTECTED-MODE ADDRESS TO MS-DOS
	AX = 250Fh
	ES:EBX = 48-bit protected-mode address to convert
	ECX = 00000000h or length of data in bytes
Return: CF clear if successful (address < 1mb="" and="" contiguous)="" ecx="32-bit" real-mode="" ms-dos="" address="" cf="" set="" on="" error="" (address="">= 1MB or not contiguous)
	    ECX = linear address
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2510h
--------E-212510-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - CALL REAL-MODE PROCEDURE, REGISTERS
	AX = 2510h
	EBX = CS:IP of real-mode procedure to call
	ECX = number of two-byte words to copy to protected-mode stack to
	      real-mode stack
	DS:EDX -> pointer to parameter block (see #0585)
Return: CF clear if successful
	    all segment registers unchanged,
	    EDX unchanged
	    all other general registers contain values set by real-mode proc
	    all other flags are set as they were left by real-mode procedure
	    real-mode register values are returned in the parameter block
	CF set on error
	    EAX = error code
		01h not enough real-mode stack space
Note:	unlike most of the preceding 25xxh functions, this one is not
	  supported by FlashTek X-32VM
SeeAlso: AX=250Eh,AX=250Fh

Format of Phar Lap real-mode call parameter block:
Offset	Size	Description	(Table 0585)
 00h	WORD	real-mode DS value
 02h	WORD	real-mode ES value
 04h	WORD	real-mode FS value
 06h	WORD	real-mode GS value
 08h	DWORD	real-mode EAX value
 0Ch	DWORD	real-mode EBX value
 10h	DWORD	real-mode ECX value
 14h	DWORD	real-mode EDX value
--------E-212511-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - ISSUE REAL-MODE INTERRUPT
	AX = 2511h
	DS:EDX -> parameter block (see #0586)
Return: all segment registers unchanged
	EDX unchanged
	all other registers contain values set by the real-mode int handler
	the flags are set as they were left by the real-mode interrupt handler
	real-mode register values are returned in the parameter block
Note:	this function is also supported by FlashTek X-32VM
SeeAlso: AX=2503h,AX=2505h,AX=250Eh,AH=E3h"OS/286",INT 31/AX=0300h

Format of Phar Lap real-mode interrupt parameter block:
Offset	Size	Description	(Table 0586)
 00h	WORD	interrupt number
 02h	WORD	real-mode DS value
 04h	WORD	real-mode ES value
 06h	WORD	real-mode FS value
 08h	WORD	real-mode GS value
 0Ah	DWORD	real-mode EAX value
 0Eh	DWORD	real-mode EDX value
Note: all other real-mode values set from protected-mode registers
--------E-212512-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - LOAD PROGRAM FOR DEBUGGING
	AX = 2512h
	DS:EDX -> pointer to ASCIZ program name
	ES:EBX -> pointer to parameter block (see #0588)
	ECX = size in bytes of LDT buffer
Return: CF clear if successful
	    EAX = number of segment descriptors in LDT
	CF set on error
	    EAX = error code (see #0587)
SeeAlso: AX=2517h

(Table 0587)
Values for Phar Lap error code:
 02h	file not found or path invalid
 05h	access denied
 08h	insufficient memory
 0Ah	environment invalid
 0Bh	invalid file format
 80h	LDT too small

Format of Phar Lap program load parameter block:
Offset	Size	Description	(Table 0588)
Input:
 00h	DWORD	32-bit offset of environment string
 04h	WORD	segment of environment string
 06h	DWORD	32-bit offset of command-tail string
 0Ah	WORD	segment of command-tail string
 0Ch	DWORD	32-bit offset of LDT buffer (size in ECX)
 10h	WORD	segment of LDT buffer
Output:
 12h	WORD	real-mode paragraph address of PSP (see also AH=26h)
 14h	WORD	real/protected mode flag
		0000h  real mode
		0001h  protected mode
 16h	DWORD	initial EIP value
 1Ah	WORD	initial CS value
 1Ch	DWORD	initial ESP value
 20h	WORD	initial SS value
 22h	WORD	initial DS value
 24h	WORD	initial ES value
 26h	WORD	initial FS value
 28h	WORD	initial GS value
--------E-212513-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - ALIAS SEGMENT DESCRIPTOR
	AX = 2513h
	BX = segment selector of descriptor in GDT or LDT
	CL = access-rights byte for alias descriptor
	CH = use-type bit (USE16 or USE32) for alias descriptor
Return: CF clear if successful
	    AX = segment selector for created alias
	CF set on error
	    EAX = error code
		08h insufficient memory (can't grow LDT)
		09h invalid segment selector in BX
--------E-212514-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - CHANGE SEGMENT ATTRIBUTES
	AX = 2514h
	BX = segment selector of descriptor in GDT or LDT
	CL = new access-rights byte
	CH = new use-type bit (USE16 or USE32)
Return: CF clear if successful
	CF set on error
	    EAX = error code
		09h invalid selector in BX
SeeAlso: AX=2515h,INT 31/AX=0009h
--------E-212515-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET SEGMENT ATTRIBUTES
	AX = 2515h
	BX = segment selector of descriptor in GDT or LDT
Return: CF clear if successful
	    CL = access-rights byte for segment
	    CH = use-type bit (USE16 or USE32)
	ECX<16-31> destroyed
	CF set on error
	    EAX = error code
		09h invalid segment selector in BX
SeeAlso: AX=2514h
--------E-212516-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v2.2+ - FREE ALL MEMORY OWNED BY LDT
	AX = 2516h
Return: CF clear
Note:	this function must be called from Ring 0 or the CS descriptor is freed
--------E-212517-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v2.1c+ - GET INFO ON DOS DATA BUFFER
	AX = 2517h
Return: CF clear
	ES:EBX -> data buffer (protected mode address)
	ECX -> data buffer (real mode address)
	EDX = size of data buffer in bytes
Note:	the data buffer's address changes after calls to AX=2512h and AX=252Ah
SeeAlso: AX=2512h,AX=252Ah,AX=2530h
--------E-212518-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender 2.1c+ - SPECIFY HANDLER FOR MOVED SEGMENTS
	AX = 2518h
	ES:EBX -> function to call when a segment is moved
Return: CF clear
	ES:EBX -> previous handler
--------E-212519-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - GET ADDITIONAL MEMORY ERROR INFO
	AX = 2519h
Return: CF clear
	EAX = error code
	    0000h  no error
	    0001h  out of physical memory
	    0002h  out of swap space (unable to grow swap file)
	    0003h  out of LDT entries and unable to grow LDT
	    0004h  unable to change extended memory allocation mark
	    FFFFFFFFh	paging disabled
Note:	VMM is the Virtual Memory Manager option
--------E-21251A-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - LOCK PAGES IN MEMORY
	AX = 251Ah
	EDX = number of 4k pages to lock
	if BL = 00h
	    ECX = linear address of first page to lock
	if BL = 01h
	    ES:ECX -> pointer to first page to lock
Return: CF clear if successful
	CF set on error
	    EAX = error code
		08h insufficient memory
		09h invalid address range
SeeAlso: AX=251Bh,AX=EB06h,INT 31/AX=0600h
--------E-21251B-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - UNLOCK PAGES
	AX = 251Bh
	EDX = number of pages to unlock
	if BL = 00h
	    ECX = linear address of first page to unlock
	if BL = 01h
	    ES:ECX -> pointer to first page to unlock
Return: CF clear if successful
	CF set on error
	    EAX = error code
		09h invalid address range
SeeAlso: AX=251Ah,AX=EB07h,INT 31/AX=0601h
--------E-21251C-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM v2.1c+ - FREE PHYSICAL MEMORY PAGES
	AX = 251Ch
	BH = preservation flag (00h preserve contents, 01h discard contents)
	EDX = number of pages to free
	BL = address type
	    00h linear address
		ECX = linear address of first page to be freed
	    01h pointer
		ES:ECX -> first page to be freed
Return: CF clear if successful
	CF set on error
	    EAX = error code
		08h memory error, swap space full, no VMM or DPMI
		09h invalid address
--------E-21251D-----------------------------
INT 21 OP - Phar Lap 386/DOS-Extender VMM v2.1c - READ PAGE-TABLE ENTRY
	AX = 251Dh
	BL = address type
	    00h linear address
		ECX = linear address of page table entry to read
	    01h pointer
		ES:ECX -> page table entry to read
Return: CF clear if successful
	    EAX = contents of page table entry
	CF set on error
	    EAX = error code
		09h invalid address or NOPAGE option set
		78h invalid under DPMI
Note:	this function is obsolete; use AX=252Bh/BH=09h instead
SeeAlso: AX=251Eh,AX=252Bh/BH=09h,AX=EB00h,INT 31/AX=0506h
--------E-21251E-----------------------------
INT 21 OP - Phar Lap 386/DOS-Extender VMM v2.1c - WRITE PAGE-TABLE ENTRY
	AX = 251Eh
	BL = address type
	    00h linear address
		ECX = linear address of page table entry to read
	    01h pointer
		ES:ECX -> page table entry to read
	EDX = new value for page table entry
Return: CF clear if successful
	CF set on error
	    EAX = error code
		09h invalid address or NOPAGE option set
		82h not compatible with DPMI
Note:	this call is obsolete; use AX=252Bh/BH=0Ah instead
SeeAlso: AX=251Dh,AX=252Bh/BH=0Ah,INT 31/AX=0507h
--------E-21251F-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - EXHANGE TWO PAGE-TABLE ENTRIES
	AX = 251Fh
	BL = address type
	    00h linear address
		ECX = linear address of first page table entry
		EDX = linear address of second page table entry
	    01h pointer
		ES:ECX -> first page table entry
		ES:EDX -> second page table entry
Return: CF clear if successful
	CF set on error
	    EAX = error code
		09h invalid address or NOPAGE option set
		82h not compatible with DPMI
SeeAlso: AX=251Dh,AX=251Eh
--------E-212520-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - GET MEMORY STATISTICS
	AX = 2520h
	DS:EDX -> pointer to buffer at least 100 bytes in size (see #0589)
	BL = 0 (don't reset VM stats), 1 (reset VM stats)
Return: carry flag clear

Format of Phar Lap VM statistics buffer:
Offset	Size	Description	(Table 0589)
 00h	DWORD	VM status
		0001h VM subsystem is present
		0000h VM not present
 04h	DWORD	"nconvpg" number of conventional memory pages available
 08h	DWORD	"nbimpg" number of Compaq built-in memory pages available
 0Ch	DWORD	"nextpg" total number of extended memory pages
 10h	DWORD	"extlim" extender memory pages limit
 14h	DWORD	"aphyspg" number of physical memory pages allocated to appl
 18h	DWORD	"alockpg" number of locked pages owned by application
 1Ch	DWORD	"sysphyspg" number physical memory pages allocated to system
 20h	DWORD	"nfreepg" number of free physical pages; approx if EMS VCPI
 24h	DWORD	linear address of beginning of application address space
 28h	DWORD	linear address of end of application address space
 2Ch	DWORD	number of seconds since last time VM stats were reset
 30h	DWORD	number of page faults since last time
 34h	DWORD	number of pages written to swap file since last time
 38h	DWORD	number of reclaimed pages (page faults on swapped pages)
 3Ch	DWORD	number of virtual pages allocated to the application
 40h	DWORD	size in pages of swap file
 44h	DWORD	number of system pages allocated with EMS calls
 48h	DWORD	minimum number of conventional memory pages
 4Ch	DWORD	maximum size in pages to which swap file can be increased
 50h	DWORD	"vmflags"
		bit 0 = 1 if page fault in progress
---v4.0+ ---
 54h	DWORD	number of physical pages guaranteed to be free
 58h	DWORD	number of free physical pages currently available
 5Ch	DWORD	size in pages of largest free block of memory (including disk
		  swap space)
 60h	DWORD	reserved
--------E-212521-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - LIMIT PROGRAM'S EXTENDED MEM USAGE
	AX = 2521h
	EBX = max 4k pages of physical extended memory which program may use
Return: CF clear if successful
	   EBX = maximum limit in pages
	   ECX = minimum limit in pages
	CF set on error
	    EAX = error code
		08h insufficient memory or -nopage switch used
SeeAlso: AX=2522h
--------E-212522-----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v2.2+ - SPECIFY ALTERNATE PAGE-FAULT HANDLR
	AX = 2522h
	ES:EBX -> alternate handler for page faults
Return: CF clear
	ES:EBX -> previous page-fault handler
SeeAlso: AX=2523h
--------E-212523-----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v2.2+ - SPECIFY OUT-OF-SWAP-SPACE HANDLER
	AX = 2523h
	???
Return: ???
Note:	this function takes a DWORD pointer and a DWORD pointer to a DWORD
	  pointer as arguments
SeeAlso: AX=2522h
--------E-212524-----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v2.2+ - INSTALL PAGE-REPLACEMENT HANDLERS
	AX = 2524h
	???
Return: ???
Note:	this function takes three DWORD pointers and three DWORD pointers to
	  DWORD pointers as arguments
--------E-212525-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - LIMIT PROGRAM'S CONVENT'L MEM USAGE
	AX = 2525h
	EBX = limit in 4k pages of physical conventional memory which program
	      may use
Return: CF clear if successful
	    EBX = maximum limit in pages
	    ECX = minimum limit in pages
	CF set on error
	    EAX = error code
		08h insufficient memory or -nopage switch used
SeeAlso: AX=2521h
--------E-212526-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET CONFIGURATION INFORMATION
	AX = 2526h
	???
Return: ???
Notes:	details are not yet available
	this function takes a pointer to the configuration buffer (see #0590)
	  and a poitner to a BYTE as arguments

Format of Phar Lap configuration buffer:
Offset	Size	Description	(Table 0590)
 00h	DWORD	flags 1 (see #0591)
 04h	DWORD	flags 2 (unused through v5.0)
 08h	DWORD	flags 3 (unused through v5.0)
 0Ch	DWORD	386|DOS-Extender major version
 10h	DWORD	386|DOS-Extender minor version
 14h	DWORD	first letter of text after minor version number in version str
 18h	DWORD	beta flag (00h normal release, 01h beta release)
 1Ch	DWORD	processor (3 = 386, 4 = 486)
 20h	DWORD	coprocessor (4 = none, 6 = 287, 7 = 387/486)
 24h	DWORD	Weitek coprocessor flag (0 = none, 1 = present)
 28h	DWORD	machine type (0 = IBM PC compatible, 1 = NEC 9800 series)
 2Ch	DWORD	machine class
		IBM: bus type (0=ISA, 1=MCA, 2=XT, 3=EISA)
		NEC: 0=normal mode, 1=high-res mode
 30h	DWORD	VCPI flag (0 = none, 1 = present)
 34h	DWORD	-WEITEK/-1167 switch (0 = AUTO, 1 = ON, 2 = OFF)
 38h	DWORD	-MINREAL setting
 3Ch	DWORD	-MAXREAL setting
 40h	DWORD	-MINIBUF setting
 44h	DWORD	-MAXIBUF setting
 48h	DWORD	size in bytes of DOS call data buffer
 4Ch	DWORD	number of interrupt stacks (-NISTACK)
 50h	DWORD	interrupt stack size (-ISTKSIZE)
 54h	DWORD	-REALBREAK setting
 58h	DWORD	-CALLBUFS
 5Ch	DWORD	-HWIVEC
 60h	DWORD	-PRIVEC
 64h	DWORD	-INTMAP
 68h	DWORD	-PRIMAP
 6Ch	DWORD	VCPI: master 8259 interrupt vector base (IRQ0 mapping)
 70h	DWORD	VCPI: slave 8259 interrupt vector base (IRQ8 mapping)
 74h	DWORD	BIOS print screen interrupt vector (0 if NEC)
 78h	DWORD	-EXTLOW setting
 7Ch	DWORD	-EXTHIGH setting
 80h	DWORD	lowest physical extended-memory address allocatable
 84h	DWORD	highest physical extended-memory address allocatable + 1
 88h	DWORD	special memory's physical base address (00000000h if none)
 8Ch	DWORD	special memory size in bytes (00000000h if none)
 90h	DWORD	-MAXVCPIMEM setting
 94h	DWORD	-VSCAN
 98h	DWORD	-SWAPCHK (0 = OFF, 1 = ON, 2 = FORCE, 3 = MAX)
 9Ch	DWORD	-CODESIZE setting
 A0h	DWORD	minimum swap file size (-MINSWFSIZE)
 A4h	DWORD	maximum swap fiel size (-MAXSWFSIZE)
 A8h	DWORD	page replacement policy (0 = LFU, 1 = NUR)
 ACh	DWORD	number of GDT entries (-NGDTENT)
 B0h	DWORD	number of LDT entries (-NLDTENT)
 B4h	DWORD	program's privilege level (0-3)
---386|DOS-Extender v3.0+ ---
 B8h	DWORD	-LOCKSTACK setting
 BCh	DWORD	-MAXEXTMEM
 C0h	DWORD	-MAXXMSMEM
 C4h	DWORD	-MAXPGMMEM
 C8h	DWORD	-DATATHRESHOLD
 CCh	DWORD	virtual memory manager flag (0 = not present, 1 = present)
 D0h	DWORD	Cyrix coprocessor flag (0 = no Cyrix EMC387, 1 = present)
 D4h	DWORD	-CYRIX setting (0 = AUTO, 1 = ON, 2 = OFF)
 D8h	DWORD	DPMI flag (0 = not present, 1 = present)
 DCh	DWORD	DPMI major version
 E0h	DWORD	DPMI minor version
 E4h	DWORD	DPMI capabilities flags (see #0592)
 E8h	DWORD	VCPI major version
 ECh	DWORD	VCPI minor version
 F0h	WORD	VCPI: IRQ0-7 physical base interrupt vector
 F2h	WORD	VCPI: IRQ8-15 physical base interrupt vector
 F4h	DWORD	XMS flag (0 = none, 1 = present)
 F8h	DWORD	XMS major version
 FCh	DWORD	XMS minor version
100h	WORD	application's CS selector
102h	WORD	application's DS selector
104h	WORD	application's PSP selector
106h	WORD	application's environment selector
108h	WORD	selector mapping entire first megabyte
10Ah	WORD	selector mapping text video memory
10Ch	WORD	selector mapping video memory (text for IBM, graphics for NEC)
10Eh	WORD	selector mapping Weitek address space, 0000h if not present
110h	WORD	selector mapping Cyrix EMC387 address space, 0000h if none
112h	WORD	reserved (0)
114h	DWORD	real-mode FAR entry point to call to switch to protected mode
		  with no saved context
118h	DWORD	size of LDT in bytes
---386|DOS-Extender v5.0+ ---
11Ch	DWORD	Windows flag (0 = not present, 1 = Windows present)
120h	DWORD	Windows major version
124h	DWORD	Windows minor version
128h	DWORD	Windows mode (0 = real/standard, 1 = enhanced)
12Ch	DWORD	OS/2 flag (0 = not present, 1 = OS/2 present)
130h	DWORD	OS/2 major version
134h	DWORD	OS/2 minor version
138h 50 DWORDs	reserved (0)

Bitfields for flags 1:
Bit(s)	Description	(Table 0591)
 0	-NOPAGE specified
 1	-A20 specified
 2	-VDISK specified
 3	-XT specified
 4	-AT specified
 5	-MCA specified
 6	-EISA specified
 7	-NORMRES specified (NEC only)
 8	-HIGHRES specified (NEC only)
 9	set if -SWFGROW1ST, clear if -NOSWFGROW1ST
 10	-NOVM specified
 11	-SAVEREGS specified
 12	unused (clear)
 13	-NOVCPI specified
 14	-NOMUL specified
 15	-NOBMCHK specified
 16	-NOSPCLMEM or -NOBIM
 17	-NOPGEXP specified
 18	-SWAPDEFDISK specified
---v3.0+ ---
 19	-SAVEINTS specified
 20	-NOLOAD specified
 21	-PAGELOG specified
 22	-OPENDENY specified
 23	-ERRATA17 specified
---v4.1+ ---
 24	-NESTDPMI specified
 25	-NONESTDPMI specified
 26	-NODPMI specified
 27	-NOPCDWEITEK specified
---v4.2+ ---
 28	-WININT21 specified

Bitfields for DPMI capabilities flags:
Bit(s)	Description	(Table 0592)
 0	paging supported
 1	physical device mapping
 2	conventional memory mapping
 3	exceptions restartable
--------E-212527-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - EN/DISABLE STATE SAVE ON INTERRUPTS
	AX = 2527h
	EBX = new status (00h disabled, 01h enabled)
Return: CF clear
	EBX = previous state save flag
SeeAlso: AX=2528h
--------E-212528-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - READ REGISTERS AFTER CTRL-C INT
	AX = 2528h
	DS:EBX -> buffer for registers (see #0593)
Return: CF clear if successful
	    DS:EBX buffer filled
	CF set on error
	    EAX = error code
		83h interrupt state save not enabled
		84h no active interrupt
SeeAlso: AX=2527h

Format of Phar Lap buffer for registers:
Offset	Size	Description	(Table 0593)
 00h  8 BYTEs	unused
 08h  4	DWORDs	EAX,EBX,ECX,EDX
 18h  4 DWORDs	ESI,EDI,EBP,ESP
 28h  6 WORDs	CS,DS,SS,ES,FS,GS
 34h	DWORD	EIP
 38h	DWORD	EFLAGS
--------E-212529-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - LOAD FLAT MODEL .EXP or .REX FILE
	AX = 2529h
	???
Return: ES:EBX -> parameter block (see #0594)
	???
Note:	details not available at this time
SeeAlso: AX=252Ah

Format of Phar Lap program load parameter block:
Offset	Size	Description	(Table 0594)
 00h	DWORD	initial EIP
 04h	WORD	initial CS
 06h	DWORD	initial ESP
 0Ah	WORD	initial SS
 0Ch  4 WORDs	initial DS, ES, FS, GS
 14h	DWORD	minimum size in bytes of program segment
 18h	DWORD	bytes of additional memory allocated
 1Ch	DWORD	flags
		bit 0: child linked with -UNPRIVILEGED
		---v6.0+ ---
		bit 1: child is PE file instead of .EXP
		bit 2: loaded file is a DLL
		bits 3-31 reserved
---v6.0+ ---
 20h	DWORD	module handles (PE files only)
 24h  7 DWORDs	reserved (0)
--------E-21252A-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM - NEW LOAD PROGRAM FOR DEBUG
	AX = 252Ah
	DS:EDX -> ASCIZ program name
	ES:EBX -> parameter block (see #0588)
	ECX = size of LDT buffer in bytes
	ESI = bit flags
	    bit 0: allow demand paging rather than loading entire program
	    bit 1: demand page from swap file rather than from .EXP
Return: CF clear if successful
	    EAX = VMM handle or FFFFFFFFh if none
	    ECX = number of descriptors in LDT buffer
	CF set on error
	    EAX = error code
		02h file error
		    EBX = file error code (see #0595)
		    ECX = DOS error code if EBX=1,2,3, or 8
		08h insufficient memory
		    EBX = memory error code (see #0596)
		80h LDT buffer too small
		87h called twice without intervening call to AX=2531h
SeeAlso: AX=2512h,AX=2517h,AX=2529h,AX=2531h

(Table 0595)
Values for Phar Lap file error code:
 01h	DOS open error
 02h	DOS seek error
 03h	DOS read error
 04h	not an .EXP or .REX file
 05h	invalid file format
 06h	-OFFSET is not a multiple of 64K
 07h	-NOPAGE incompatible with -REALBREAK/-OFFSET
 08h	DOS error loading .EXE file

(Table 0596)
Values for Phar Lap memory error code:
 01h	out of physical memory
 02h	out of swap space
 04h	unable to change extended memory allocation
 05h	-MAXPGMMEM exceeded
 06h	insufficient low memory to REALBREAK value
 07h	insufficient low memory for PSP and environment
--------E-21252BBH00-------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender - CREATE UNMAPPED PAGES
	AX = 252Bh
	BH = 00h
	???
Return: ???
--------E-21252BBH01-------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender - CREATE ALLOCATED PAGES
	AX = 252Bh
	BH = 01h
	???
Return: ???
--------E-21252BBH02-------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender - CREATE PHYSICAL DEVICE PAGES
	AX = 252Bh
	BH = 02h
	???
Return: ???
--------E-21252BBH03-------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender - MAP DATA FILE
	AX = 252Bh
	BH = 03h
	???
Return: ???
SeeAlso: AX=252Bh/BL=0Bh
--------E-21252BBH04-------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender - GET PAGE TYPES
	AX = 252Bh
	BH = 04h
	???
Return: ???
Note:	returns one word per page
SeeAlso: #0597

Bitfields for Phar Lap page information:
Bit(s)	Description	(Table 0597)
 7	mapped to read/write data file
 6	mapped to read-only data file
 5	swapped to disk
 4	locked
 3-0	page type
	0 unmapped
	1 allocated
	2 physical device page
--------E-21252B-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - VIRTUAL MEMORY MANAGEMENT - PAGE LOCKING
	AX = 252Bh
	BH = function
	    05h lock pages
	    06h unlock pages
	BL = address type
	    00h linear address
		ECX = linear start address of memory region
	    01h segmented address
		ES:ECX -> start of memory region
	EDX = size of memory region in bytes
Return: CF clear if successful
	CF set on error
Note:	this function is also supported by FlashTek X-32VM; if X-32 is not
	  using virtual memory, this function always succeeds
--------E-21252B-----------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender - FREE PHYSICAL PAGES
	AX = 252Bh
	BH = function (07h,08h)
	???
Return: ???
--------E-21252BBH09-------------------------
INT 21 P - Phar Lap 386/DOS-Extender v4.1 - GET PAGETABLE ENTRY/PAGE TABLE INFO
	AX = 252Bh
	BH = 09h
	BL = subfunction
	    00h get page table entry by linear address
		ECX = linear address for which to get page table entry
		 01h get page table entry by logical address
		ES:ECX = address for which to get page table entry
Return: CF clear if successful
	    EAX = page table entry
	    EBX = additional page table information
	CF set on error
	    EAX = error code
		0009h invalid address
		0082h running under DPMI
SeeAlso: AX=251Dh,AX=252Bh/BH=0Ah
--------E-21252BBH0A-------------------------
INT 21 P - Phar Lap 386/DOS-Extender v4.1 - SET PAGETABLE ENTRY/PAGE TABLE INFO
	AX = 252Bh
	BH = 0Ah
	BL = subfunction
	    00h set page table entry for linear address
		ECX = linear address for which to get page table entry
	    01h set page table entry for logical address
		ES:ECX = address for which to get page table entry
	ESI = page table entry
	EDI = additional page table information
Return: CF clear if successful
	CF set on error
		 EAX = error code
		0009h invalid address
		0082h running under DPMI
SeeAlso: AX=252Bh/BH=09h
--------E-21252BBH0B-------------------------
INT 21 P - Phar Lap 386/DOS-Extender v4.1+ - MAP DATA FILE AT FILE OFFSET
	AX = 252Bh
	BH = 0Bh
	BL = subfunction
	    00h by linear address
		ECX = linear address at which to map data file
	    01h by logical address
		ES:ECX = logical address at which to map data file
	EDX = number of bytes to map
	DS:ESI -> mapping structure (see #0598)
	DS:EDI -> ASCIZ filename
Return: CF clear if successful
	CF set on error
	    EAX = error code
		0002h file error
		    ECX = phase (01h opening file, 02h seeking, 03h reading)
		    EDX = error code returned by DOS
		0009h invalid address
		0081h invalid parameters or 386|VMM not present
		0086h all 386|VMM file handles already in use
SeeAlso: AX=252Bh/BH=03h,AX=252Bh/BH=09h

Format of Phar Lap mapping structure:
Offset	Size	Description	(Table 0598)
 00h	DWORD	starting file offset to be mapped
 04h	DWORD	DOS file access and sharing modes (see #0628 at INT 21/AH=3Dh)
--------E-21252C-----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v3.0 - ADD UNMAPPED PAGES AT END OF SEGMENT
	AX = 252Ch
	BX = segment selector
	ECX = number of 4K pages to add
Return: CF clear if successful
	    EAX = offset in segment of beginning of unmapped pages
	CF set on error
	    EAX = error code
		08h insufficent memory
		09h invalid selector
		82h not supported by current DPMI
--------E-21252D-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM v2.3+ - CLOSE VMM FILE HANDLE
	AX = 252Dh
	EBX = VMM file handle
Return: CF clear if successful
	CF set on error
	    EAX = error code (81h invalid VMM handle)
--------E-21252E-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM v2.3+ - GET/SET VMM PARAMETERS
	AX = 252Eh
	CL = direction (00h get parameters, 01h set parameters)
	DS:EBX -> parameter buffer (see #0599)
Return: CF clear if successful
	CF set on error
	    EAX = error code (81h bad parameter value)

Format of Phar Lap VMM parameter buffer:
Offset	Size	Description	(Table 0599)
 00h	DWORD	flags
		bit 0: page fault logging enabled
		---v5.0+ ---
		bit 1: swap extender to disk during DOS EXEC call
		bit 2: don't zero allocated memory
 04h	DWORD	scan period for page aging, in milliseconds
 08h	DWORD	maximum size (in bytes) to check on each page scan
 0Ch 52 BYTEs	unused
--------E-21252F-----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v3.0 - WRITE RECORD TO VMM PAGE LOG FILE
	AX = 252Fh
	DS:EBX -> data to be written
	CX = size of data in bytes
Return: CF clear if successful
	CF set on error
	    EAX = error code (85h no page log file or not 386/VMM)
--------E-212530-----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v2.3+ - SET SIZE OF BUFFER FOR DOS CALLS
	AX = 2530h
	ECX = size of data buffer in bytes (1024 to 65536)
Return: CF clear if successful
	CF set on error
	    EAX = error code
		08h insufficient low memory
		81h invalid size
SeeAlso: AX=2517h
--------E-212531-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM v3.0 - READ/WRITE LDT DESCRIPTOR
	AX = 2531h
	BX = segment selector
	ECX = direction (00h read, 01h write)
	DS:EDX -> 8-byte buffer for descriptor contents
Return: CF clear if successful
	CF set on error
	    EAX = error code
		81h invalid selector
		82h DPMI running, or not a code or data segment
--------E-212532-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - GET EXCEPTION HANDLER VECTOR
	AX = 2532h
	CL = exception number (00h-0Fh)
Return: CF clear if successful
	    ES:EBX = CS:EIP of current exception handler
	CF set on error (CL > 0Fh)
Notes:	this call is also supported by the FlashTek X-32VM extender
	this function is incompatible with 386|VMM; use AX=2522h instead
SeeAlso: AX=2522h,AX=2533h
--------E-212533-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - SET EXCEPTION HANDLER VECTOR
	AX = 2533h
	CL = exception number (00h-0Fh)
	DS:EDX = CS:EIP of new exception handler
Return: CF clear if successful
	CF set on error (CL > 0Fh)
Notes:	this call is also supported by the FlashTek X-32VM extender
	this function is incompatible with 386|VMM; use AX=2522h instead
SeeAlso: AX=2522h,AX=2532h
--------E-212534-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v3.0+ - GET INTERRUPT FLAG
	AX = 2534h
Return: CF clear
	EAX = interrupt state (00h disabled, 01h enabled)
--------E-212535-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v3.0+ - READ/WRITE SYSTEM REGISTERS
	AX = 2535h
	EBX = direction (00h read registers, 01h write)
	DS:EDX -> system register record (see #0600)
Return: CF clear
Note:	this call is only available under MS Windows if PHARLAP.386 VDD is
	  installed

Format of Phar Lap system register record:
Offset	Size	Description	(Table 0600)
 00h	DWORD	CR0
 04h  4 DWORDs	DR0,DR1,DR2,DR3
 14h  2 DWORDs	reserved
 1Ch  2 DWORDs	DR6,DR7
 24h  3 DWORDs	reserved
--------E-212536----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v3.0+ - MIN/MAX EXTENDED/CONV MEMORY USAGE
	AX = 2536h
	EBX = bit flags
	    bit 0: modifying conventional memory rather than extended memory
	    bit 1: setting maximum memory usage rather than minimum
	ECX = new limit in 4K pages
Return: CF clear if successful
	    EAX = new limit
	CF set on error
	    EAX = error code (08h memory error or -NOPAGE set)
	    EBX = maximum limit in pages
	    ECX = minimum limit in pages
--------E-212537----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v3.0 - ALLOCATE DOS MEMORY ABOVE DOS BUFFER
	AX = 2537h
	BX = number of paragraphs to allocate
Return: CF clear if successful
	    AX = real-mode segment of allocated block
	CF set on error
	    AX = error code
		07h MS-DOS memory chain corrupted
		08h insufficient low memory
	    BX = size in paragraphs of largest free block
SeeAlso: AH=48h
--------E-212538----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v3.0 - READ PROTMODE REGS AFTER SFTWARE INT
	AX = 2538h
	DS:EBX -> buffer for registers (see #0593)
	ECX = register record to retrieve
	    00h first interrupt state
	    01h next interrupt state
		EDX = handle for current interrupt state
Return: CF clear if successful
	    DS:EBX buffer filled
	    EDX = handle of current interrupt state
	    ESI = number of interrupt which occurred
	CF set on error
	    EAX = error code
		81h invalid handle in EDX
		83h register saving not enabled
		84h no more interrupt states
SeeAlso: AX=2527h,AX=2528h
--------E-212539----------------------------
INT 21 P - Phar Lap 386/DOS-Ext VMM v3.0 - GET OFFSET OF .EXP FILE HEADER
	AX = 2539h
	BX = MS-DOS file handle for open file
Return: CF clear if successful
	    EAX = offset of .EXP header in file
	CF set on error
	    EAX = error code (02h file error)
	    EBX = file error code
		02h DOS error seeking
		03h DOS error reading
		04h invalid file type	
		05h invalid file format
	    ECX = DOS error code if EBX=02h or 03h
	current file position in file modified
--------E-21253A----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v3.0+ - INSTALL MOD. SEG FAILURE HANDLER
	AX = 253Ah
	ES:EBX -> function to be called when INT 21/AH=4Ah is about to return
		an error
Return: CF clear
	ES:EBX -> previous handler
SeeAlso: AH=4Ah
--------E-21253B----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v3.0+ - JUMP TO REAL MODE CODE, NO CONTEXT
	AX = 253Bh
	DS:EBX -> buffer containing register contents (see #0593)
Return: never returns
SeeAlso: AX=2528h
--------E-21253C-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender VMM v3.0+ - SHRINK 386|VMM SWAP FILE
	AX = 253Ch
Return: CF clear
	EAX = old size of swap file in bytes
	EBX = new size of swap file in bytes
--------E-21253D-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender v4.0+ - READ/WRITE IDT DESCRIPTOR
	AX = 253Dh
	BL = interrupt number
	ECX = direction (0 = read, 1 = write)
	DS:EDX -> 8-byte buffer for descriptor
Return: CF clear if successful
	    DS:EDX filled if reading
	CF set on error
	    EAX = error code (0082h if running under DPMI)
Desc:	access hardware-level IDT rather than the internal 386/DOS-Extender
	  shadow IDT
Notes:	this call will always fail under DPMI because it is not possible to
	  access the IDT
	the descriptor is not checked when writing
	this call can normally be used only by programs running in ring 0
	  because the processor does not allow an interrupt to be vectored to
	  a less privileged ring
--------E-21253F-----------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender v6.0+ - ALLOCATE LDT DESCRIPTOR
	AX = 253Fh
	BX = LDT descriptor to allocate (0000h for any)
	???
Return: ???
--------E-212540-----------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender v6.0+ - FORCE ALIAS OF SEGMENT
	AX = 2540h
	???
Return: ???
--------E-212544-----------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender v6.0+ - FREE DLL
	AX = 2544h
	???
Return: ???
--------E-212545-----------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender v6.0+ - GET/SET PROCEDURE ADDRESS
	AX = 2545h
	ECX = direction (00h get, 01h set)
	???
Return: ???
--------E-212546-----------------------------
INT 21 Pu - Phar Lap 386/DOS-Extender v6.0+ - GET MODULE HANDLE
	AX = 2546h
	???
Return: ???
--------E-2125C0-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - ALLOCATE MS-DOS MEMORY BLOCK
	AX = 25C0h
	BX = number of 16-byte paragraphs of MS-DOS memory requested
Return: CF clear if successful
	    AX = real-mode paragraph address of memory
	CF set on error
	    AX = error code
		07h MS-DOS memory control blocks destroyed
		08h insufficient memory
	    BX = size in paragraphs of largest available memory block
SeeAlso: AX=25C1h,AX=25C2h
--------E-2125C1-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - RELEASE MS-DOS MEMORY BLOCK
	AX = 25C1h
	CX = real-mode paragraph address of memory block to free
Return: CF clear if successful
	    EAX destroyed
	CF set on error
	    AX = error code
		07h MS-DOS memory control blocks destroyed
		09h invalid memory block address in CX
SeeAlso: AX=25C0h,AX=25C2h
--------E-2125C2-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - MODIFY MS-DOS MEMORY BLOCK
	AX = 25C2h
	BX = new requested block size in paragraphs
	CX = real-mode paragraph address of memory block to modify
Return: CF clear if successful
	    EAX destroyed
	CF set on error
	    AX = error code
		07h MS-DOS memory control blocks destroyed
		08h insufficient memory
		09h invalid memory block address in CX
	    BX = size in paragraphs of largest available memory block
SeeAlso: AX=25C0h,AX=25C1h
--------E-2125C3-----------------------------
INT 21 P - Phar Lap 386/DOS-Extender - EXECUTE PROGRAM
	AX = 25C3h
	ES:EBX -> pointer to parameter block (see #0602)
	DS:EDX -> pointer to ASCIZ program filename
Return: CF clear if successful
	    all registers unchanged
	CF set on error
	    EAX = error code (see #0601)

(Table 0601)
Values for Phar Lap error code:
 01h	function code in AL is invalid ???
 02h	file not found or path invalid
 05h	access denied
 08h	insufficient memory to load program
 0Ah	environment invalid
 0Bh	invalid file format

Format of parameter block:
Offset	Size	Description	(Table 0602)
 00h	DWORD	32-bit offset of environment string
 04h	WORD	segment selector of environment string
 06h	DWORD	32-bit offset of command-tail string
 0Ah	WORD	segment selector of command-tail string
--------D-2126-------------------------------
INT 21 - DOS 1+ - CREATE NEW PROGRAM SEGMENT PREFIX
	AH = 26h
	DX = segment at which to create PSP (see #0603)
Notes:	new PSP is updated with memory size information; INTs 22h, 23h, 24h
	  taken from interrupt vector table; the parent PSP field is set to 0
	(DOS 2+) DOS assumes that the caller's CS is the segment of the PSP to
	  copy
SeeAlso: AH=4Bh,AH=50h,AH=51h,AH=55h,AH=62h,AH=67h

Format of Program Segment Prefix (PSP):
Offset	Size	Description	(Table 0603)
 00h  2 BYTEs	INT 20 instruction for CP/M CALL 0 program termination
		the CDh 20h here is often used as a signature for a valid PSP
 02h	WORD	segment of first byte beyond memory allocated to program
 04h	BYTE	(DOS) unused filler
		(OS/2) count of fake DOS version returns
 05h	BYTE	CP/M CALL 5 service request (FAR CALL to absolute 000C0h)
		BUG: (DOS 2+ DEBUG) PSPs created by DEBUG point at 000BEh
 06h	WORD	CP/M compatibility--size of first segment for .COM files
 08h  2 BYTEs	remainder of FAR JMP at 05h
 0Ah	DWORD	stored INT 22 termination address
 0Eh	DWORD	stored INT 23 control-Break handler address
 12h	DWORD	DOS 1.1+ stored INT 24 critical error handler address
 16h	WORD	segment of parent PSP
 18h 20 BYTEs	DOS 2+ Job File Table, one byte per file handle, FFh = closed
 2Ch	WORD	DOS 2+ segment of environment for process (see #0604)
 2Eh	DWORD	DOS 2+ process's SS:SP on entry to last INT 21 call
 32h	WORD	DOS 3+ number of entries in JFT (default 20)
 34h	DWORD	DOS 3+ pointer to JFT (default PSP:0018h)
 38h	DWORD	DOS 3+ pointer to previous PSP (default FFFFFFFFh in 3.x)
		used by SHARE in DOS 3.3
 3Ch	BYTE	DOS 4+ (DBCS) interim console flag (see AX=6301h)
 3Dh	BYTE	(APPEND) TrueName flag (see INT 2F/AX=B711h)
 3Eh	BYTE	(Novell NetWare) flag: next byte initialized if CEh
		(OS/2) capabilities flag
 3Fh	BYTE	(Novell NetWare) Novell task number if previous byte is CEh
 40h  2 BYTEs	DOS 5+ version to return on INT 21/AH=30h
 42h	WORD	(MSWindows3) selector of next PSP (PDB) in linked list
		Windows keeps a linked list of Windows programs only
 44h	WORD	(MSWindows3) "PDB_Partition"
 46h	WORD	(MSWindows3) "PDB_NextPDB"
 48h	BYTE	(MSWindows3) bit 0 set if non-Windows application (WINOLDAP)
 49h	BYTE	unused by DOS versions <= 6.00="" 4ch="" word="" (mswindows3)="" "pdb_entrystack"="" 4eh="" 2="" bytes="" unused="" by="" dos="" versions=""><= 6.00="" 50h="" 3="" bytes="" dos="" 2+="" service="" request="" (int="" 21/retf="" instructions)="" 53h="" 2="" bytes="" unused="" in="" dos="" versions=""><= 6.00="" 55h="" 7="" bytes="" unused="" in="" dos="" versions=""><= 6.00;="" can="" be="" used="" to="" make="" first="" fcb="" into="" an="" extended="" fcb="" 5ch="" 16="" bytes="" first="" default="" fcb,="" filled="" in="" from="" first="" commandline="" argument="" overwrites="" second="" fcb="" if="" opened="" 6ch="" 16="" bytes="" second="" default="" fcb,="" filled="" in="" from="" second="" commandline="" argument="" overwrites="" beginning="" of="" commandline="" if="" opened="" 7ch="" 4="" bytes="" unused="" 80h="" 128="" bytes="" commandline="" default="" dta="" command="" tail="" is="" byte="" for="" length="" of="" tail,="" n="" bytes="" for="" the="" tail,="" followed="" by="" a="" byte="" containing="" 0dh="" notes:="" in="" dos="" v3+,="" the="" limit="" on="" simultaneously="" open="" files="" may="" be="" increased="" by="" allocating="" memory="" for="" a="" new="" open="" file="" table,="" filling="" it="" with="" ffh,="" copying="" the="" first="" 20="" bytes="" from="" the="" default="" table,="" and="" adjusting="" the="" pointer="" and="" count="" at="" 34h="" and="" 32h.="" however,="" dos="" will="" only="" copy="" the="" first="" 20="" file="" handles="" into="" a="" child="" psp="" (including="" the="" one="" created="" on="" exec).="" network="" redirectors="" based="" on="" the="" original="" ms-net="" implementation="" use="" values="" of="" 80h-feh="" in="" the="" open="" file="" table="" to="" indicate="" remote="" files;="" novell="" netware="" also="" uses="" values="" from="" feh="" down="" to="" 80h="" or="" one="" more="" than="" files="(whichever" is="" greater)="" to="" indicate="" remote="" files="" ms-dos="" 5.00="" incorrectly="" fills="" the="" fcb="" fields="" when="" loading="" a="" program="" high;="" the="" first="" fcb="" is="" empty="" and="" the="" second="" contains="" the="" first="" parameter="" some="" dos="" extenders="" place="" protected-mode="" values="" in="" various="" psp="" fields="" such="" as="" the="" "parent"="" field,="" which="" can="" confuse="" psp="" walkers.="" always="" check="" either="" for="" the="" cdh="" 20h="" signature="" or="" that="" the="" suspected="" psp="" is="" at="" the="" beginning="" of="" a="" memory="" block="" which="" owns="" itself="" (the="" preceding="" paragraph="" should="" be="" a="" valid="" mcb="" with="" "owner"="" the="" same="" as="" the="" suspected="" psp).="" novell="" netware="" updates="" the="" fields="" at="" offsets="" 3eh="" and="" 3fh="" without="" checking="" that="" a="" legal="" psp="" segment="" is="" current;="" see="" ah="50h" for="" further="" discussion="" format="" of="" environment="" block:="" offset="" size="" description="" (table="" 0604)="" 00h="" n="" bytes="" first="" environment="" variable,="" asciz="" string="" of="" form="" "var="value" "="" n="" bytes="" second="" environment="" variable,="" asciz="" string="" ...="" n="" bytes="" last="" environment="" variable,="" asciz="" string="" of="" form="" "var="value" "="" byte="" 00h="" ---dos="" 3+---="" word="" number="" of="" strings="" following="" environment="" (normally="" 1)="" n="" bytes="" asciz="" full="" pathname="" of="" program="" owning="" this="" environment="" other="" strings="" may="" follow="" --------d-2127-------------------------------="" int="" 21="" -="" dos="" 1+="" -="" random="" block="" read="" from="" fcb="" file="" ah="27h" cx="number" of="" records="" to="" read="" ds:dx="" -=""> opened FCB (see #0574)
Return: AL = status
	    00h successful, all records read
	    01h end of file, no data read
	    02h segment wrap in DTA, no data read
	    03h end of file, partial read
	[DTA] = records read from file
	CX = number of records read (return AL = 00h or 03h)
Notes:	read begins at current file position as specified in FCB; the file
	  position is updated after reading
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=21h,AH=28h,AH=3Fh
--------D-2128-------------------------------
INT 21 - DOS 1+ - RANDOM BLOCK WRITE TO FCB FILE
	AH = 28h
	CX = number of records to write
	DS:DX -> opened FCB (see #0574)
	[DTA] = records to write
Return: AL = status
	    00h successful
	    01h disk full or file read-only
	    02h segment wrap in DTA
	CX = number of records written
Notes:	write begins at current file position as specified in FCB; the file
	  position is updated after writing
	if CX = 0000h on entry, no data is written; instead the file size is
	  adjusted to be the same as the file position specified by the random
	  record and record size fields of the FCB
	if the data to be written is less than a disk sector, it is copied into
	  a DOS disk buffer, to be written out to disk at a later time
	not supported by MS Windows 3.0 DOSX.EXE DOS extender
SeeAlso: AH=22h,AH=27h,AH=40h,AH=59h
--------D-2129-------------------------------
INT 21 - DOS 1+ - PARSE FILENAME INTO FCB
	AH = 29h
	AL = parsing options (see #0605)
	DS:SI -> filename string (both '*' and '?' wildcards OK)
	ES:DI -> buffer for unopened FCB
Return: AL = result code
	    00h successful parse, no wildcards encountered
		 01h successful parse, wildcards present
	    FFh failed (invalid drive specifier)
	DS:SI -> first unparsed character
	ES:DI buffer filled with unopened FCB (see #0574)
Notes:	asterisks expanded to question marks in the FCB
	all processing stops when a filename terminator is encountered
	cannot be used with filespecs which include a path (DOS 2+)
	Novell NetWare monitors the result code since an 'invalid drive' may
	  signal an attempt to reconnect a network drive; if there are no
	  connections to the specified drive, NetWare attempts to build a
	  connection and map the drive to the SYS:LOGIN directory
SeeAlso: AH=0Fh,AH=16h,AH=26h

Bitfields for parsing options:
Bit(s)	Description	(Table 0605)
 0	skip leading separators
 1	use existing drive number in FCB if no drive is specified, instead of
	  setting field to zero
 2	use existing filename in FCB if no base name is specified, instead of
	  filling field with blanks
 3	use existing extension in FCB if no extension is specified, instead of
	  filling field with blanks
 4-7	reserved (0)
--------D-212A-------------------------------
INT 21 - DOS 1+ - GET SYSTEM DATE
	AH = 2Ah
Return: CX = year (1980-2099)
	DH = month
	DL = day
---DOS 1.10+---
	AL = day of week (00h=Sunday)
SeeAlso: AH=2Bh"DOS",AH=2Ch,AH=E7h,INT 1A/AH=04h,INT 2F/AX=120Dh
--------D-212B-------------------------------
INT 21 - DOS 1+ - SET SYSTEM DATE
	AH = 2Bh
	CX = year (1980-2099)
	DH = month
	DL = day
Return: AL = status
	    00h successful
	    FFh invalid date, system date unchanged
Note:	DOS 3.3+ also sets CMOS clock
SeeAlso: AH=2Ah,AH=2Dh,INT 1A/AH=05h
--------E-212B--CX4149-----------------------
INT 21 - AI Architects - ??? - INSTALLATION CHECK
	AH = 2Bh
	CX = 4149h ('AI')
	DX = 413Fh ('A?')
Return: AL <> FFh if installed
Note:	Borland's TKERNEL makes this call
--------c-212B--CX4358-----------------------
INT 21 - Super PC-Kwik v3.20+ - INSTALLATION CHECK
	AH = 2Bh
	CX = 4358h ('CX')
Return: AL = FFh if PC-Kwik/PC-Cache not installed
	AL = 00h if installed
	    CF clear
	    CX = 6378h ('cx')
	    BX = ???
	    DX = version (DH = major version, DL = binary minor version)
Note:	PC Tools PC-Cache v5.x and Qualitas Qcache v4.00 are OEM versions of
	  Super PC-Kwik, and thus support this call (PC-Cache 5.1 corresponds
	  to PC-Kwik v3.20)
SeeAlso: INT 13/AH=A0h,INT 13/AH=B0h,INT 16/AX=FFA5h/CX=1111h
Index:	PC-Cache;installation check|Qualitas Qcache;installation check
Index:	installation check;PC-Cache 5.x|installation check;Qualitas Qcache
--------Q-212B--CX4445-----------------------
INT 21 - DESQview - INSTALLATION CHECK
	AH = 2Bh
	CX = 4445h ('DE')
	DX = 5351h ('SQ')
	AL = subfunction (DV v2.00+)
	    01h get version
		Return: BX = version (BH = major, BL = minor)
		Note: early copies of v2.00 return 0002h
	    02h get shadow buffer info, and start shadowing
		Return: BH = rows in shadow buffer
			BL = columns in shadow buffer
			DX = segment of shadow buffer
	    04h get shadow buffer info
		Return: BH = rows in shadow buffer
			BL = columns in shadow buffer
			DX = segment of shadow buffer
	    05h stop shadowing
Return: AL = FFh if DESQview not installed
Notes:	in DESQview v1.x, there were no subfunctions; this call only identified
	  whether or not DESQview was loaded.  DESQview v2.52 performs function
	  01h for all subfunction requests 0Ch and higher and appears to ignore
	  all lower-numbered functions not listed here.
	DESQview versions 2.50-2.52 are part of DESQview/X v1.0x; version 2.53
	  is part of DESQview/X v1.10; and version 2.63 is part of DESQview/X
	  v2.00.
BUG:	subfunction 05h does not appear to work correctly in DESQview 2.52
SeeAlso: INT 10/AH=FEh,INT 10/AH=FFh,INT 15/AX=1024h,INT 15/AX=DE30h
--------U-212B--CX454C-----------------------
INT 21 - ELRES v1.1 - INSTALLATION CHECK
	AH = 2Bh
	CX = 454Ch ('EL')
	DX = 5253h ('RS')
Return: ES:BX -> ELRES history structure (see #0606)
	DX = DABEh (signature, DAve BEnnett)
Program: ELRES is an MS-DOS return code (errorlevel) recorder by David H.
	  Bennett which stores recent errorlevel values, allows them to be
	  retrieved for use in batch files, and can place them in an
	  environment variable
SeeAlso: AH=4Bh"ELRES",AH=4Dh

Format of ELRES history structure:
Offset	Size	Description	(Table 0606)
 00h	WORD	number of return codes which can be stored by following buffer
 02h	WORD	current position in buffer (treated as a ring)
 04h  N BYTEs	ELRES buffer
--------m-212B01CX444D-----------------------
INT 21 - Quarterdeck DOS-UP.SYS v2.00 - INSTALLATION CHECK
	AX = 2B01h
	CX = 444Dh ('DM')
	DX = 4158h ('AX')
Return: AX = 0000h if installed
	    BX = version??? (0002h)
	    CX = 4845h ('HE')
	    DX = 5245h ('RE')
	    ES = DOS-UP driver segment
--------T-212B01CX5441-----------------------
INT 21 - TAME v2.10+ - INSTALLATION CHECK
	AX = 2B01h
	CX = 5441h ('TA')
	DX = 4D45h ('ME')
---v2.60---
	BH = ???
	    00h skip ???, else do
Return: AL = 02h if installed
	ES:DX -> data area in TAME-RES (see #0607,#0611,#0613)
Program: TAME is a shareware program by David G. Thomas which gives up CPU time
	  to other partitions under a multitasker when the current partition's
	  program incessantly polls the keyboard or system time

Format of TAME 2.10-2.20 data area:
Offset	Size	Description	(Table 0607)
 00h	BYTE	data structure minor version number (01h in TAME 2.20)
 01h	BYTE	data structure major version number (07h in TAME 2.20)
 02h	DWORD	number of task switches
 06h	DWORD	number of keyboard polls
 0Ah	DWORD	number of time polls
 0Eh	DWORD	number of times DESQview told program runs only in foreground
 12h	DWORD	original INT 10h
 16h	DWORD	original INT 14h
 1Ah	DWORD	original INT 15h
 1Eh	DWORD	original INT 16h
 22h	DWORD	original INT 17h
 26h	DWORD	original INT 21h
 2Ah	DWORD	original INT 28h
 2Eh	WORD	offset of TAME INT 10h handler
 30h	WORD	offset of TAME INT 14h handler
 32h	WORD	offset of TAME INT 15h handler
 34h	WORD	offset of TAME INT 16h handler
 36h	WORD	offset of TAME INT 17h handler
 38h	WORD	offset of TAME INT 21h handler
 3Ah	WORD	offset of TAME INT 28h handler
 3Ch	WORD	X in /max:X,Y or /freq:X,Y
 3Eh	WORD	Y in /max:X,Y or /freq:X,Y
 40h	WORD	number of polls remaining before next task switch
 42h	WORD	/KEYIDLE value
 44h	BYTE	interrupts already grabbed by TAME (see #0608)
 45h	BYTE	flags for interrupts which may be acted on (same bits as above)
 46h	BYTE	TAME enabled (01h) or disabled (00h)
 47h	BYTE	/TIMEPOLL (01h) or /NOTIMEPOLL (00h)
 48h	BYTE	/NOTIMER (01h) or /TIMER (00h)
 49h	BYTE	window or task number for this task
 4Ah	BYTE	multitasker type (see #0609)
 4Bh	BYTE	type of task switching selected
		bit 0: DESQview???
		bit 1: DoubleDOS???
		bit 2: TopView???
		bit 3: KeySwitch
		bit 4: HLT instruction
 4Ch	BYTE	???
 4Dh	BYTE	flags
		bit 1: /FREQ instead of /MAX
 4Eh	BYTE	/FG: value
 4Fh	BYTE	task switches left until next FGONLY DESQview API call
 50h	BYTE	???

Bitfields for interrupts already grabbed by TAME:
Bit(s)	Description	(Table 0608)
 0	INT 10h
 1	INT 14h
 2	INT 15h
 3	INT 16h
 4	INT 17h
 5	INT 21h
 6	INT 28h

(Table 0609)
Values for multitasker type:
 01h	DESQview
 02h	DoubleDOS
 03h	TopView
 04h	OmniView
 05h	VM/386

Bitfields for type of task switching selected:
Bit(s)	Description	(Table 0610)
 0	DESQview
 1	DoubleDOS
 2	TopView
 3	OmniView
 4	KeySwitch
 5	HLT instruction

Format of TAME 2.30 data area:
Offset	Size	Description	(Table 0611)
 00h	BYTE	data structure minor version number (02h in TAME 2.30)
 01h	BYTE	data structure major version number (0Ah in TAME 2.30)
 02h	DWORD	number of task switches
 06h	DWORD	number of keyboard polls
 0Ah	DWORD	number of time polls
 0Eh	DWORD	number of times DESQview told program runs only in foreground
 12h	DWORD	time of last /CLEAR or TAME-RES load
 16h	DWORD	time yielded
 1Ah	DWORD	time spent polling
 1Eh	DWORD	time spent waiting on key input with INT 16/AH=01h,11h
 22h	DWORD	original INT 10h
 26h	DWORD	original INT 14h
 2Ah	DWORD	original INT 15h
 2Eh	DWORD	original INT 16h
 32h	DWORD	original INT 17h
 36h	DWORD	original INT 21h
 3Ah	DWORD	original INT 28h
 3Eh	WORD	offset of TAME INT 10h handler
 40h	WORD	offset of TAME INT 14h handler
 42h	WORD	offset of TAME INT 15h handler
 44h	WORD	offset of TAME INT 16h handler
 46h	WORD	offset of TAME INT 17h handler
 48h	WORD	offset of TAME INT 21h handler
 4Ah	WORD	offset of TAME INT 28h handler
 4Ch	WORD	X in /max:X,Y or /freq:X,Y
 4Eh	WORD	Y in /max:X,Y or /freq:X,Y
 50h	WORD	number of polls remaining before next task switch
 52h	WORD	/KEYIDLE value
 54h	WORD	/FG: value
 56h	WORD	task switches left until next FGONLY DESQview API call
 58h	WORD	multitasker version
 5Ah	WORD	virtual screen segment
 5Ch	BYTE	interrupts already grabbed by TAME (see #0608)
 5Dh	BYTE	flags for interrupts which may be acted on (same bits as above)
 5Eh	BYTE	window or task number for this task
 5Fh	BYTE	multitasker type (see #0609)
 60h	BYTE	type of task switching selected (bit flags) (see #0610)
 61h	BYTE	watch_DOS
 62h	BYTE	action flags (see #0612)
 63h	BYTE	old status
 64h	WORD	signature DA34h

Bitfields for TAME action flags:
Bit(s)	Description	(Table 0612)
 0	TAME enabled
 1	/FREQ instead of /MAX (X and Y count fields are per tick)
 2	/TIMEPOLL
 3	/KEYPOLL
 4	inhibit timer
 5	enable status monitoring
SeeAlso: #0611,#0613

Format of TAME 2.60 data area:
Offset	Size	Description	(Table 0613)
 00h	BYTE	data structure minor version number (02h in TAME 2.60)
 01h	BYTE	data structure major version number (0Bh in TAME 2.60)
 02h	DWORD	number of task switches
 06h	DWORD	number of keyboard polls
 0Ah	DWORD	number of time polls
 0Eh	DWORD	number of times DESQview told program runs only in foreground
 12h	DWORD	time of last /CLEAR or TAME-RES load
 16h	DWORD	time yielded
 1Ah	DWORD	time spent polling
 1Eh	DWORD	time spent waiting on key input with INT 16/AH=01h,11h
 22h  4 BYTEs	???
 26h	DWORD	original INT 10h
 2Ah	DWORD	original INT 14h
 2Eh	DWORD	original INT 15h
 32h	DWORD	original INT 16h
 36h	DWORD	original INT 17h
 3Ah	DWORD	original INT 21h
 3Eh	DWORD	original INT 28h
 42h	WORD	offset of TAME INT 10h handler
 44h	WORD	offset of TAME INT 14h handler
 46h	WORD	offset of TAME INT 15h handler
 48h	WORD	offset of TAME INT 16h handler
 4Ah	WORD	offset of TAME INT 17h handler
 4Ch	WORD	offset of TAME INT 21h handler
 4Eh	WORD	offset of TAME INT 28h handler
 50h	WORD	X in /max:X,Y or /freq:X,Y
 52h	WORD	Y in /max:X,Y or /freq:X,Y
 54h	WORD	number of polls remaining before next task switch
 56h	WORD	/KEYIDLE value
 58h  4 BYTEs	???
 5Ch	WORD	X in /boost:X,Y
 5Eh	WORD	Y in /boost:X,Y
 60h	WORD	/FG: value
 62h	WORD	task switches remaining until next FGONLY DESQview API call
 64h	WORD	multitasker version ???
 66h	WORD	virtual screen segment
 68h	BYTE	interrupts already grabbed by TAME (see #0608)
 69h	BYTE	flags for interrupts which may be acted on (same bits as above)
 6Ah	BYTE	window or task number for this task
 6Bh	BYTE	multitasker type (see #0609)
 6Ch	BYTE	type of task switching selected (bit flags) (see #0610)
 6Dh	BYTE	watch_DOS
 6Eh	BYTE	action flags (see #0612)
 6Fh	BYTE	old status
 70h	WORD	signature DA34h
--------v-212B16CX0643-----------------------
INT 21 - VIRUS - "Maltese Amoeba" - INSTALLATION CHECK
	AX = 2B16h
	CX = 0643h
Return: AX = 1603h if installed
--------R-212B44BX4D41-----------------------
INT 21 - pcANYWHERE IV/LAN - INSTALLATION CHECK
	AX = 2B44h ('D')
	BX = 4D41h ('MA')
	CX = 7063h ('pc')
	DX = 4157h ('AW')
Return: AX = resident program
		 4F4Bh ('OK') if large host resident
	    6F6Bh ('ok') if small host resident
	CX:DX -> API entry point (see #0614)
SeeAlso: INT 16/AH=79h

(Table 0614)
Call pcANYWHERE API entry point with:
	AX = 0000h get pcANYWHERE IV version
	    DS:SI -> BYTE buffer for host type code
	    Return: AH = version number
		    AL = revision number
		    DS:DI buffer byte filled with
			00h full-featured host
			01h limited-feature LAN host
			other API may not be supported
	AX = 0001h initialize operation
	    DS:SI -> initialization request structure (see #0615)
	    Return: AX = function status (see #0618)
	AX = 0002h get status
	    Return: AH = current operating mode (see init req structure below)
		    AL = current connection status (see #0617)
	AX = 0003h suspend remote screen updates
	    Return: AX = function status (see #0618)
	AX = 0004h resume screen updates
	    Return: AX = function status (see #0618)
	AX = 0005h end current remote access session
	    DS:SI -> termination request structure (see #0616)
	    Return: AX = function status (see #0618)
	AX = 0006h remove pcANYWHERE IV from memory
	    Return: AX = status (see #0618)
	AX = 8000h read data from communications channel
	    DS:BX -> buffer
	    CX = buffer size
	    Return: AX >= number of characters read/available
		    AX < 0="" on="" error="" ax="8001h" write="" data="" to="" communications="" channel="" ds:bx="" -=""> buffer
	    CX = buffer size
	    Return: AX >= number of characters written
		    AX < 0="" on="" error="" ax="8002h" get="" connection="" status="" return:="" ax="status"> 0000h if connection active
			= 0000h if connection lost
			< 0000h="" on="" error="" format="" of="" pcanywhere="" initialization="" request="" structure:="" offset="" size="" description="" (table="" 0615)="" 00h="" byte="" operating="" mode="" 00h="" wait="" for="" a="" call="" 01h="" hot="" key="" activates="" 02h="" incoming="" call="" activates="" 03h="" initiate="" a="" call="" 01h="" 3="" bytes="" user="" id="" to="" append="" to="" config="" file="" names="" 04h="" word="" ds-relative="" pointer="" to="" path="" for="" config="" files="" 06h="" word="" ds-relative="" pointer="" to="" path="" for="" program="" files="" format="" of="" pcanywhere="" termination="" request="" structure:="" offset="" size="" description="" (table="" 0616)="" 00h="" byte="" operating="" mode="" after="" termination="" 00h="" wait="" for="" a="" call="" 01h="" hot="" key="" activates="" 02h="" incoming="" call="" activates="" 80h="" use="" current="" mode="" ffh="" remove="" from="" memory="" bitfields="" for="" current="" connection="" status:="" bit(s)="" description="" (table="" 0617)="" 0="" a="" physical="" connection="" is="" active="" 1="" remove="" screen="" updating="" is="" active="" 2="" connection="" checking="" is="" active="" 3="" hot="" key="" detection="" is="" active="" 4="" background="" file="" transfer="" is="" active="" (table="" 0618)="" values="" for="" pcanywhere="" function="" status:="" 0000h="" function="" completed="" successfully="" ffd1h="" unable="" to="" release="" interrupt="" vectors="" ffd2h="" unable="" to="" release="" allocated="" memory="" fff2h="" unable="" to="" establish="" a="" connection="" when="" operating="" mode="" is="" "initiate="" a="" call"="" fff3h="" modem="" configuration="" is="" invalid="" (corrupt="" config)="" fff4h="" modem="" initialization="" failed="" (no="" modem="" response)="" fff5h="" the="" communications="" device="" could="" not="" be="" initialized="" fff6h="" the="" host="" operator="" aborted="" the="" function="" fff7h="" the="" communications="" driver="" type="" specified="" in="" the="" configuration="" file="" is="" different="" than="" the="" one="" loaded="" when="" pcanywhere="" iv="" was="" started="" fff9h="" the="" configuration="" file="" is="" invalid="" fffah="" the="" configuration="" file="" could="" not="" be="" found="" fffbh="" no="" session="" is="" active="" fffch="" a="" remote="" access="" session="" is="" active="" fffdh="" the="" specified="" operating="" mode="" is="" invalid="" ----------212b--cx6269-----------------------="" int="" 21="" -="" wdtsr.com="" -="" installation="" check="" ah="2Bh" cx="6269h" ('bi')="" dx="742Dh" ('t-')="" return:="" al="FFh" if="" not="" installed="" al="77h" ('w')="" if="" wdtsr="" is="" installed="" cx="6174h" ('at')="" dx="6368h" ('ch')="" es="resident" code="" segment="" es:di="" -=""> identification and configuration data
Program: WDTSR is a driver for the bitWatch watchdog hardware by bit-design
	  GmbH
SeeAlso: AH=2Bh/CX=6269h"bitFOSSI",INT 14/AH=14h"FOSSIL",INT 15/AH=C3h
--------S-212B--CX6269-----------------------
INT 21 - bitFOSS - INSTALLATION CHECK
	AH = 2Bh
	CX = 6269h ('bi')
	DX = 7446h ('tF')
Return: AL = FFh if not installed
	AL = 4Fh ('O') if bitFOSS is installed
	    CX = 5353h ('SS')
	    DX = 494Ch ('IL')
		 ES = resident code segment
	    ES:DI -> identification data
Program: bitFOSS is a revision 5 FOSSIL driver
SeeAlso: AH=2Bh/CX=6269h"bitFOSSI",INT 11/AH=BCh
--------S-212B--CX6269-----------------------
INT 21 - bitFOSSI - INSTALLATION CHECK
	AH = 2Bh
	CX = 6269h ('bi')
	DX = 7449h ('tI')
Return: AL = FFh if not installed
	AL = 53h ('S') if bitFOSSI is installed
	    CX = 444Eh ('DN')
	    DX = 2D46h ('-F')
	    ES = resident code segment
	    ES:DI -> identification data
Program: bitFOSSI is a revision 5 FOSSIL driver for ???'s ISDN board
SeeAlso: AH=2Bh/CX=6269h/DX=7446h,INT 11/AH=BCh
--------D-212C-------------------------------
INT 21 - DOS 1+ - GET SYSTEM TIME
	AH = 2Ch
Return: CH = hour
	CL = minute
	DH = second
	DL = 1/100 seconds
Note:	on most systems, the resolution of the system clock is about 5/100sec,
	  so returned times generally do not increment by 1
	on some systems, DL may always return 00h
SeeAlso: AH=2Ah,AH=2Dh,AH=E7h,INT 1A/AH=00h,INT 1A/AH=02h,INT 1A/AH=FEh
SeeAlso: INT 2F/AX=120Dh
--------v-212C00CX534B-----------------------
INT 21 - SKUDO - INSTALLATION CHECK
	AX = 2C00h
	CX = 534Bh ('SK')
	DX = 5544h ('UD')
	BX = 4F21h ('O!')
Return: AX = 5349h ('SI') if installed
	    CH = version number
	    CL = subversion
Program: SKUDO is an antivirus TSR by Jordi Mas
--------D-212D-------------------------------
INT 21 - DOS 1+ - SET SYSTEM TIME
	AH = 2Dh
	CH = hour
	CL = minute
	DH = second
	DL = 1/100 seconds
Return: AL = result
	    00h successful
	    FFh invalid time, system time unchanged
Note:	DOS 3.3+ also sets CMOS clock
SeeAlso: AH=2Bh"DOS",AH=2Ch,INT 1A/AH=01h,INT 1A/AH=03h,INT 1A/AH=FFh"AT&T"
--------T-212D01CX7820-----------------------
INT 21 - PC-Mix - INSTALLATION CHECK
	AX = 2D01h
	CX = 7820h ('X ')
	DX = 6D69h ('MI')
Return: AL = 00h if installed
--------D-212E--DL00-------------------------
INT 21 - DOS 1+ - SET VERIFY FLAG
	AH = 2Eh
	DL = 00h (DOS 1.x/2.x only)
	AL = new state of verify flag
	    00h off
	    01h on
Notes:	default state at system boot is OFF
	when ON, all disk writes are verified provided the device driver
	  supports read-after-write verification
SeeAlso: AH=54h
--------D-212F-------------------------------
INT 21 - DOS 2+ - GET DISK TRANSFER AREA ADDRESS
	AH = 2Fh
Return: ES:BX -> current DTA
Note:	under the FlashTek X-32 DOS extender, the pointer is in ES:EBX
SeeAlso: AH=1Ah
--------D-2130-------------------------------
INT 21 - DOS 2+ - GET DOS VERSION
	AH = 30h
---DOS 5+ ---
	AL = what to return in BH
	    00h OEM number (as for DOS 2.0-4.0x)
	    01h version flag
Return: AL = major version number (00h if DOS 1.x)
	AH = minor version number
	BL:CX = 24-bit user serial number (most versions do not use this)
---if DOS <5 or="" al="00h---" bh="MS-DOS" oem="" number="" (see="" #0619)="" ---if="" dos="" 5+="" and="" al="01h---" bh="version" flag="" bit="" 3:="" dos="" is="" in="" rom="" other:="" reserved="" (0)="" notes:="" the="" os/2="" v1.x="" compatibility="" box="" returns="" major="" version="" 0ah="" (10)="" the="" os/2="" v2.x="" compatibility="" box="" returns="" major="" version="" 14h="" (20)="" os/2="" warp="" 3.0="" virtual="" dos="" machines="" report="" v20.30.="" the="" windows/nt="" dos="" box="" returns="" version="" 5.00,="" subject="" to="" setver="" dos="" 4.01="" and="" 4.02="" identify="" themselves="" as="" version="" 4.00;="" use="" int="" 21/ah="87h" to="" distinguish="" between="" the="" original="" european="" ms-dos="" 4.0="" and="" the="" later="" pc-dos="" 4.0x="" and="" ms-dos="" 4.0x="" ibm="" dos="" 6.1="" reports="" its="" version="" as="" 6.00;="" use="" the="" oem="" number="" to="" distinguish="" between="" ms-dos="" 6.00="" and="" ibm="" dos="" 6.1="" (there="" was="" never="" an="" ibm="" dos="" 6.0)="" ms-dos="" 6.21="" reports="" its="" version="" as="" 6.20;="" version="" 6.22="" returns="" the="" correct="" value="" the="" "chicago"="" beta="" returns="" version="" 7.00="" (reported="" in="" _microsoft_systems_journal_,="" august="" 1994).="" dr-dos="" 5.0="" and="" 6.0="" report="" version="" 3.31;="" novell="" dos="" 7="" reports="" ibm="" v6.00,="" which="" some="" software="" displays="" as="" ibm="" dos="" v6.10="" (because="" of="" the="" version="" mismatch="" in="" true="" ibm="" dos,="" as="" mentioned="" above)="" generic="" ms-dos="" 3.30,="" compaq="" ms-dos="" 3.31,="" and="" others="" identify="" themselves="" as="" pc-dos="" by="" returning="" oem="" number="" 00h="" the="" version="" returned="" under="" dos="" 4.0x="" may="" be="" modified="" by="" entries="" in="" the="" special="" program="" list="" (see="" #0874="" at="" ah="52h);" the="" version="" returned="" under="" dos="" 5+="" may="" be="" modified="" by="" setver--use="" ax="3306h" to="" get="" the="" true="" version="" number="" seealso:="" ax="3000h/BX=3000h,AX=3306h,AX=4452h,AH=87h,INT" 15/ax="4900h" seealso:="" int="" 2f/ax="122Fh,INT" 2f/ax="4010h,INT" 2f/ax="E002h" (table="" 0619)="" values="" for="" dos="" oem="" number:="" 00h="" ibm="" 01h="" compaq="" 02h="" ms="" packaged="" product="" 04h="" at&t="" 05h="" zds="" (zenith="" electronics)="" 06h="" hewlett-packard="" 07h="" zds="" (groupe="" bull)="" 0dh="" packard-bell="" 16h="" dec="" 23h="" olivetti="" 28h="" texas="" instruments="" 29h="" toshiba="" 33h="" novell="" (windows/386="" device="" ids="" only)="" 34h="" ms="" multimedia="" systems="" (windows/386="" device="" ids="" only)="" 35h="" ms="" multimedia="" systems="" (windows/386="" device="" ids="" only)="" 4dh="" hewlett-packard="" 5eh="" rxdos="" 66h="" phystechsoft="" (pts-dos)="" 99h="" general="" software's="" embedded="" dos="" eeh="" dr-dos="" efh="" novell="" dos="" ffh="" microsoft,="" phoenix="" --------e-2130-------------------------------="" int="" 21="" -="" phar="" lap="" 386/dos-extender,="" intel="" code="" builder="" -="" installation="" check="" ah="30h" eax="00003000h" ebx="50484152h" ("phar")="" return:="" al="major" dos="" version="" ah="minor" dos="" version="" eax="" bits="" 31-16="4458h" ('dx')="" if="" 386/dos-extender="" installed="" bl="ASCII" major="" version="" number="" eax="" bits="" 31-16="4243h" ('bc')="" if="" intel="" code="" builder="" installed="" edx="address" of="" gda="" seealso:="" ax="2501h,AX=FF00h,INT" 2f/ax="F100h" --------v-2130--dxabcd-----------------------="" int="" 21="" -="" virus="" -="" "possessed"="" -="" installation="" check="" ah="30h" dx="ABCDh" return:="" dx="DCBAh" if="" installed="" seealso:="" ax="0D20h,AX=30F1h" --------t-213000bx1234-----------------------="" int="" 21="" -="" ctask="" 2.0+="" -="" installation="" check="" ax="3000h" bx="1234h" ds:dx="" -=""> 8-byte version string (DX < fff0h)="" "ctask21",00h="" for="" v2.1-2.2="" return:="" al="DOS" major="" version="" ah="DOS" minor="" version="" cx:bx="" -=""> Ctask global data block
Program: CTask is a multitasking kernel for C written by Thomas Wagner
Note:	if first eight bytes of returned data block equal eight bytes passed
	  in, CTask is resident
--------O-213000BX3000-----------------------
INT 21 - PC-MOS/386 v3.0 - INSTALLATION CHECK/GET VERSION
	AX = 3000h
	BX = 3000h
	CX = DX = 3000h
Return: AX = PC-MOS version
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=30h,INT 38/AH=02h,INT 38/AH=10h
--------G-213022-----------------------------
INT 21 - StopPrg v2.0 - INSTALLATION CHECK
	AX = 3022h
Return: AX = DOS version (see AH=30h)
	CX = 1112h if StopPrg installed
	    BX = segment of resident code
Program: StopPrg is a resident program aborter by MAK-TRAXON's Prophet
Note:	StopPrg may be temporarily disabled by storing 9090h in the word at
	  0000h:04FEh
--------v-2130F1-----------------------------
INT 21 - VIRUS - "Dutch-555"/"Quit 1992" - INSTALLATION CHECK
	AX = 30F1h
Return: AL = 00h if resident
SeeAlso: AH=30h/DX=ABCDh,AX=330Fh
----------2130FFCX4445-----------------------
INT 21 - DESQ??? - INSTALLATION CHECK
	AX = 30FFh
	CX = 4445h ("DE")
	DX = 5351h ("SQ")
Return: BH = 05h if installed
	???
Note:	called by DUBLDISK.COM v2.6; this function is not supported by
	  DESQview, so it may be for DESQview's precursor DESQ.
SeeAlso: AX=4404h"DUBLDISK"
--------D-2131-------------------------------
INT 21 - DOS 2+ - TERMINATE AND STAY RESIDENT
	AH = 31h
	AL = return code
	DX = number of paragraphs to keep resident
Return: never
Notes:	the value in DX only affects the memory block containing the PSP;
	  additional memory allocated via AH=48h is not affected
	the minimum number of paragraphs which will remain resident is 11h
	  for DOS 2.x and 06h for DOS 3+
	most TSRs can save some memory by releasing their environment block
	  before terminating (see #0603 at AH=26h,AH=49h)
SeeAlso: AH=00h,AH=4Ch,AH=4Dh,INT 20,INT 22,INT 27
--------D-2132-------------------------------
INT 21 - DOS 2+ - GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE
	AH = 32h
	DL = drive number (00h = default, 01h = A:, etc)
Return: AL = status
	    00h successful
		DS:BX -> Drive Parameter Block (DPB) (see #0620) for specified
			  drive
	    FFh invalid or network drive
Notes:	the OS/2 compatibility box supports the DOS 3.3 version of this call
	  except for the DWORD at offset 12h
	this call updates the DPB by reading the disk; the DPB may be accessed
	  via the DOS list of lists (see #0840 at AH=52h) if disk access is not
	  desirable.
	undocumented prior to the release of DOS 5.0; only the DOS 4+ version
	  of the DPB has been documented, however
	supported by DR-DOS 3.41+; DR-DOS 3.41-6.0 return the same data as
	  MS-DOS 3.31
SeeAlso: AH=1Fh,AH=52h

Format of DOS Drive Parameter Block:
Offset	Size	Description	(Table 0620)
 00h	BYTE	drive number (00h = A:, 01h = B:, etc)
 01h	BYTE	unit number within device driver
 02h	WORD	bytes per sector
 04h	BYTE	highest sector number within a cluster
 05h	BYTE	shift count to convert clusters into sectors
 06h	WORD	number of reserved sectors at beginning of drive
 08h	BYTE	number of FATs
 09h	WORD	number of root directory entries
 0Bh	WORD	number of first sector containing user data
 0Dh	WORD	highest cluster number (number of data clusters + 1)
		16-bit FAT if greater than 0FF6h, else 12-bit FAT
 0Fh	BYTE	number of sectors per FAT
 10h	WORD	sector number of first directory sector
 12h	DWORD	address of device driver header
 16h	BYTE	media ID byte (see #0581)
 17h	BYTE	00h if disk accessed, FFh if not
 18h	DWORD	pointer to next DPB
---DOS 2.x---
 1Ch	WORD	cluster containing start of current directory, 0000h=root,
		FFFFh = unknown
 1Eh 64 BYTEs	ASCIZ pathname of current directory for drive
---DOS 3.x---
 1Ch	WORD	cluster at which to start search for free space when writing
 1Eh	WORD	number of free clusters on drive, FFFFh = unknown
---DOS 4.0-6.0---
 0Fh	WORD	number of sectors per FAT
 11h	WORD	sector number of first directory sector
 13h	DWORD	address of device driver header
 17h	BYTE	media ID byte (see #0581)
 18h	BYTE	00h if disk accessed, FFh if not
 19h	DWORD	pointer to next DPB
 1Dh	WORD	cluster at which to start search for free space when writing,
		usually the last cluster allocated
 1Fh	WORD	number of free clusters on drive, FFFFh = unknown
SeeAlso: #0875
--------D-2133-------------------------------
INT 21 - DOS 2+ - EXTENDED BREAK CHECKING
	AH = 33h
	AL = subfunction
		 00h get current extended break state
		Return: DL = current state, 00h = off, 01h = on
	    01h set state of extended ^C/^Break checking
		DL = new state
		    00h off, check only on character I/O functions
		    01h on, check on all DOS functions
		Return: (Novell DOS 7) DL = old state of extended Break checks
Note:	under DOS 3.1+ and DR-DOS, this function does not use any of the
	  DOS-internal stacks and may thus be called at any time
SeeAlso: AX=3302h
--------D-213302-----------------------------
INT 21 - DOS 3.x+ internal - GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE
	AX = 3302h
	DL = new state (00h for OFF, 01h for ON)
Return: DL = old state of extended BREAK checking
Notes:	this function does not use any of the DOS-internal stacks and may thus
	  be called at any time; one possible use is modifying Control-Break
	  checking from within an interrupt handler or TSR
	not supported by DR-DOS through version 6.0; newly-supported by
	  Novell DOS 7
SeeAlso: AH=33h
--------D-213303-----------------------------
INT 21 - DOS 4+ - UNUSED
	AX = 3303h
Return: nothing
Note:	this function and AX=3304h were apparently intended to support a
	  code-page switching flag for OS/2 compatibility (OS/2 allows a file
	  to have a code page as an attribute); however, this function has
	  always been a NOP in public releases of DOS.	See _DOS_Internals_
	  Chapter 2 for more information
SeeAlso: AX=3304h
--------D-213304-----------------------------
INT 21 - DOS 4+ - UNUSED
	AX = 3304h
Return: nothing
Note:	this function and AX=3303h were apparently intended to support a
	  code-page switching flag for OS/2 compatibility (OS/2 allows a file
	  to have a code page as an attribute); however, this function has
	  always been a NOP in public releases of DOS.	See _DOS_Internals_
	  Chapter 2 for more information
SeeAlso: AX=3303h
--------D-213305-----------------------------
INT 21 - DOS 4+ - GET BOOT DRIVE
	AX = 3305h
Return: DL = boot drive (1=A:,...)
Notes:	fully reentrant
	NEC 9800-series PCs always call the boot drive A: and assign the other
	  drive letters sequentially to the other drives in the system
	this call is supported by OS/2 Warp 3.0, but not earlier versions of
	  OS/2
--------D-213306-----------------------------
INT 21 - DOS 5+ - GET TRUE VERSION NUMBER
	AX = 3306h
Return: BL = major version
	BH = minor version
	DL = revision (bits 2-0, all others 0)
	DH = version flags
	    bit 3: DOS is in ROM
	    bit 4: DOS is in HMA
	AL = FFh if true DOS version < 5.0="" notes:="" this="" function="" always="" returns="" the="" true="" version="" number,="" unlike="" ah="30h," whose="" return="" value="" may="" be="" changed="" with="" setver="" because="" of="" the="" conflict="" from="" the="" cbis="" powerlan="" redirector="" (see="" next="" entry),="" programs="" should="" check="" whether="" bh="" is="" less="" than="" 100="" (64h)="" and="" bl="" is="" at="" least="" 5="" before="" accepting="" the="" returned="" bx="" as="" the="" true="" version="" number;="" however,="" even="" this="" is="" not="" entirely="" reliable="" when="" that="" redirector="" is="" loaded="" fully="" reentrant="" os/2="" v2.1="" will="" return="" bx="0A14h" (version="" 20.10)="" the="" windows="" nt="" dos="" box="" returns="" bx="3205h" (version="" 5.50)="" novell="" dos="" 7="" returns="" ibm="" v6.00,="" which="" some="" software="" displays="" as="" ibm="" dos="" v6.10="" (because="" of="" the="" version="" mismatch="" in="" true="" ibm="" dos="" mentioned="" for="" int="" 21/ah="30h)" bug:="" dr-dos="" 5.0="" and="" 6.0="" return="" cf="" set/ax="0001h" for="" int="" 21/ah="33h" subfunctions="" other="" than="" 00h-02h="" and="" 05h,="" while="" ms-dos="" returns="" al="FFh" for="" invalid="" subfunctions="" seealso:="" ah="30h,INT" 2f/ax="122Fh" --------n-213306-----------------------------="" int="" 21="" -="" cbis="" powerlan="" -="" network="" redirector="" -="" ax="3306h" return:="" ax="3306h" bl="???" (usually="" 00h)="" bh="???" (usually="" 00h="" or="" ffh)="" note:="" unknown="" function,="" is="" in="" conflict="" with="" dos="" 5+="" version="" call="" seealso:="" ax="3306h" dos""="" --------v-21330f-----------------------------="" int="" 21="" -="" virus="" -="" "burghofer"="" -="" installation="" check="" ax="330Fh" return:="" al="0Fh" if="" resident="" (dos="" returns="" al="FFh)" seealso:="" ax="30F1h,AX=33E0h" --------k-213341-----------------------------="" int="" 21="" -="" diet="" disk="" v1.0="" -="" installation="" check="" ax="3341h" return:="" dx="1234h" if="" installed="" cx="resident" code="" segment="" program:="" diet="" disk="" is="" a="" public="" domain="" transparent="" data="" file="" compressor="" by="" barry="" nance="" --------v-2133e0-----------------------------="" int="" 21="" -="" virus="" -="" "oropax"="" -="" installation="" check="" ax="33E0h" return:="" al="E0h" if="" resident="" (dos="" returns="" al="FFh)" seealso:="" ax="330Fh,AX=357Fh" --------d-2134-------------------------------="" int="" 21="" -="" dos="" 2+="" -="" get="" address="" of="" indos="" flag="" ah="34h" return:="" es:bx="" -=""> one-byte InDOS flag
Notes:	this function executes on the DOS stack, and thus cannot be called
	  while another DOS function is already executing; you should use
	  this function once at the beginning of the program and store the
	  returned pointer rather than calling it when requiring DOS access
	the value of InDOS is incremented whenever an INT 21 function begins
	  and decremented whenever one completes
	during an INT 28 call, it is safe to call some INT 21 functions even
	  though InDOS may be 01h instead of zero
	InDOS alone is not sufficient for determining when it is safe to
	  enter DOS, as the critical error handling decrements InDOS and
	  increments the critical error flag for the duration of the critical
	  error.  Thus, it is possible for InDOS to be zero even if DOS is
	  busy.
	SMARTDRV 4.0 sets the InDOS flag while flushing its buffers to disk,
	  then zeros it on completion
	the critical error flag is the byte immediately following InDOS in
	  DOS 2.x, and the byte BEFORE the InDOS flag in DOS 3+ and
	  DR-DOS 3.41+ (except COMPAQ DOS 3.0, where the critical error flag
	  is located 1AAh bytes BEFORE the critical section flag)
	for DOS 3.1+, an undocumented call exists to get the address of the
	  critical error flag (see AX=5D06h)
	this function was undocumented prior to the release of DOS 5.0.
SeeAlso: AX=5D06h,AX=5D0Bh,INT 15/AX=DE1Fh,INT 28
--------D-2135-------------------------------
INT 21 - DOS 2+ - GET INTERRUPT VECTOR
	AH = 35h
	AL = interrupt number
Return: ES:BX -> current interrupt handler
Note:	under DR-DOS 5.0+, this function does not use any of the DOS-internal
	  stacks and may thus be called at any time
SeeAlso: AH=25h,AX=2503h
--------E-213501-----------------------------
INT 21 P - FlashTek X-32VM - ALLOCATE PROTECTED-MODE SELECTOR
	AX = 3501h
Return: CF clear if successful
	    BX = new selector
	CF set on error (no more selectors available)
Note:	the new selector will be an expand-up read/write data selector with
	  undefined base and limit
SeeAlso: AX=3502h,INT 31/AX=0000h
--------E-213502-----------------------------
INT 21 P - FlashTek X-32VM - DEALLOCATE PROTECTED-MODE SELECTOR
	AX = 3502h
	BX = selector
Return: CF clear if successful
	CF set on error (invalid selector)
Note:	only selectors allocated via AX=3501h should be deallocated
SeeAlso: AX=3501h,INT 31/AX=0001h
--------E-213503-----------------------------
INT 21 P - FlashTek X-32VM - SET SELECTOR BASE ADDRESS
	AX = 3503h
	BX = selector
	ECX = base address
Return: CF clear if successful
	CF set on error (invalid selector)
SeeAlso: AX=3504h,AX=3505h,INT 31/AX=0007h
--------E-213504-----------------------------
INT 21 P - FlashTek X-32VM - GET SELECTOR BASE ADDRESS
	AX = 3504h
	BX = selector
Return: CF clear if successful
	    ECX = absolute base address of selector
	CF set on error (invalid selector)
SeeAlso: AX=3503h,INT 31/AX=0006h
--------E-213505-----------------------------
INT 21 P - FlashTek X-32VM - SET SELECTOR LIMIT
	AX = 3505h
	BX = selector
	ECX = desired limit
Return: CF clear if successful
	    ECX = actual limit set
	CF set on error (no more selectors available)
Note:	the limit will be rounded down to nearest 4K boundary if the requested
	  limit is greater than 1MB
SeeAlso: AX=3503h,INT 31/AX=0008h
--------E-21350A-----------------------------
INT 21 P - FlashTek X-32VM - PHYSICAL ADDRESS MAPPING
	AX = 350Ah
	EBX = absolute physical address
	ECX = size in bytes of area to map
Return: CF clear if successful
	CF set on error (insufficient memory or service refused by DPMI host)
Notes:	should not make repeated calls for the same physical address
	there is no provision for unmapping memory
--------E-21350B-----------------------------
INT 21 P - FlashTek X-32VM - UPDATE AND RETURN AVAILABLE FREE MEMORY
	AX = 350Bh
	DS = default selector for DS
Return: CF clear
	EAX = maximum amount of memory which can be allocated via AX=350Ch
SeeAlso: AX=350Ch
--------E-21350C-----------------------------
INT 21 P - FlashTek X-32VM - ALLOCATE A BLOCK OF MEMORY
	AX = 350Ch
	ECX = size of block in bytes
	DS = default DS
Return: CF clear if successful
	    EAX = near pointer to new block
	    EDX = new lowest legal value for stack
	CF set on error (requested size not multiple of 4K)
SeeAlso: AX=350Bh,AX=350Dh
--------E-21350D-----------------------------
INT 21 P - FlashTek X-32VM - RESERVE BLOCK OF MEMORY FOR 32-BIT STACK
	AX = 350Dh
	EBX = current ESP value
	ECX = size of block in bytes
	DS = default DS
Return: CF clear if successful
	    EBX = new value for ESP
	    EDX = suggested new limit for SS
	CF set on error
Note:	this function should only be called once during initialization
SeeAlso: AX=350Bh,AX=350Ch
--------v-21357F-----------------------------
INT 21 - VIRUS - "Agiplan"/"Month 4-6" - INSTALLATION CHECK
	AX = 357Fh
Return: DX = FFFFh if installed
SeeAlso: AX=33E0h,AX=3DFFh
--------D-2136-------------------------------
INT 21 - DOS 2+ - GET FREE DISK SPACE
	AH = 36h
	DL = drive number (00h = default, 01h = A:, etc)
Return: AX = FFFFh if invalid drive
	else
		 AX = sectors per cluster
	    BX = number of free clusters
	    CX = bytes per sector
	    DX = total clusters on drive
Notes:	free space on drive in bytes is AX * BX * CX
	total space on drive in bytes is AX * CX * DX
	"lost clusters" are considered to be in use
	according to Dave Williams' MS-DOS reference, the value in DX is
	  incorrect for non-default drives after ASSIGN is run
SeeAlso: AH=1Bh,AH=1Ch
--------D-213700-----------------------------
INT 21 - DOS 2+ - "SWITCHAR" - GET SWITCH CHARACTER
	AX = 3700h
Return: AL = status
	    00h successful
		DL = current switch character
	    FFh unsupported subfunction
Desc:	Determine the character which is used to introduce command switches.
	  This setting is ignored by DOS commands in version 4.0 and higher,
	  but is honored by many third-party programs.
Notes:	documented in some OEM versions of some releases of DOS
	supported by OS/2 compatibility box
	always returns AL=00h/DL=2Fh for MS-DOS 5+ and DR-DOS 3.41+
SeeAlso: AX=3701h
--------D-213701-----------------------------
INT 21 - DOS 2+ - "SWITCHAR" - SET SWITCH CHARACTER
	AX = 3701h
	DL = new switch character
Return: AL = status
	    00h successful
	    FFh unsupported subfunction
Notes:	documented in some OEM versions of some releases of DOS
	supported by OS/2 compatibility box
	ignored by MS-DOS 5+ and DR-DOS 3.41+; DR-DOS 6.0 leaves AX unchanged
SeeAlso: AX=3700h
--------D-2137-------------------------------
INT 21 - DOS 2.x and 3.3+ only - "AVAILDEV" - SPECIFY \DEV\ PREFIX USE
	AH = 37h
	AL = subfunction
	    02h get availdev flag
		Return: DL = 00h \DEV\ must precede character device names
			   = nonzero \DEV\ is optional
	    03h set availdev flag
		DL = 00h	\DEV\ is mandatory
		   = nonzero	\DEV\ is optional
Return: AL = status
		 00h successful
	    FFh unsupported subfunction
Notes:	all versions of DOS from 2.00 allow \DEV\ to be prepended to device
	  names without generating an error even if the directory \DEV does
	  not actually exist (other paths generate an error if they do not
	  exist).
	although MS-DOS 3.3+ and DR-DOS 3.41+ accept these calls, they have no
	  effect, and AL=02h always returns DL=FFh
--------k-2137D0BX899D-----------------------
INT 21 - DIET v1.43e - TSR INSTALLATION CHECK
	AX = 37D0h
	BX = 899Dh ('DI' + 'ET')
Return: AL = FFh if not present as TSR (default return value from DOS)
	AX = 0000h if installed as a TSR
	    CX = 899Dh
	    DX = version ID
Program: DIET is a transparent file copressor/decompressor by Teddy Matsumoto
SeeAlso: AX=37D1h,AX=37D2h,AX=37D4h,AX=37D6h,AX=37DFh,AX=4BF0h,AX=4BF1h
--------k-2137D1BX899D-----------------------
INT 21 - DIET v1.43e - GET DIET.EXE RESIDENT SEGMENT
	AX = 37D1h
	BX = 899Dh ('DI' + 'ET')
Return: AX = 0000h
	CX = code segment of TSR part of DIET.EXE
	DX = memory block segment of TSR DIET.EXE
		(0000h if installed as device driver)
SeeAlso: AX=37D0h,AX=37DFh
--------k-2137D2BX899D-----------------------
INT 21 - DIET v1.43e - GET TSR CONTROL FLAGS
	AX = 37D2h
	BX = 899Dh ('DI' + 'ET')
Return: AX = 0000h
	DL = control flag (00h active, else disabled)
	DH = skip flag (nonzero while TSR active)
SeeAlso: AX=37D0h,AX=37D3h,AX=37D4h
--------k-2137D3BX899D-----------------------
INT 21 - DIET v1.43e - SET TSR CONTROL FLAGS
	AX = 37D3h
	BX = 899Dh ('DI' + 'ET')
	DL = control flag (00h active, else disabled)
	DH = skip flag (00h)
Return: AX = 0000h
SeeAlso: AX=37D0h,AX=37D2h,AX=37D5h
--------k-2137D4BX899D-----------------------
INT 21 - DIET v1.43e - GET TSR OPTIONS
	AX = 37D4h
	BX = 899Dh ('DI' + 'ET')
Return: AX = 0000h
	DX = TSR options (see #0621)
SeeAlso: AX=37D0h,AX=37D2h,AX=37D5h

Bitfields for DIET TSR options:
Bit(s)	Description	(Table 0621)
 0	automated compression of DIETed file
 1	automated compression of newly-created file
 2	suppress DIET message
 3	display original file size
 4-15	reserved (0)
--------k-2137D5BX899D-----------------------
INT 21 - DIET v1.43e - SET TSR OPTIONS
	AX = 37D5h
	BX = 899Dh ('DI' + 'ET')
	DX = TSR options (see #0621)
Return: AX = 0000h
Program: DIET is a transparent file copressor/decompressor by Teddy Matsumoto
SeeAlso: AX=37D0h,AX=37D3h,AX=37D4h
--------k-2137D6BX899D-----------------------
INT 21 - DIET v1.43e - GET TEMPORARY DIRECTORY NAMES
	AX = 37D6h
	BX = 899Dh ('DI' + 'ET')
Return: AX = 0000h
	DS:DX -> name of temporary directory or 0000h:0000h for current dir
SeeAlso: AX=37D0h,AX=37D7h
--------k-2137D7BX899D-----------------------
INT 21 - DIET v1.43e - SET TEMPORARY DIRECTORY NAMES
	AX = 37D7h
	BX = 899Dh ('DI' + 'ET')
	DS:DX -> ASCIZ name of temporary directory (max 61 chars)
		0000h:0000h for current directory
Return: AX = 0000h
Note:	the specified directory name must include a drive letter and end with
	  a backslash
SeeAlso: AX=37D0h,AX=37D6h
--------k-2137DCBX899D-----------------------
INT 21 - DIET v1.43e - SET ADDRESS OF EXTERNAL PROCEDURE
	AX = 37DCh
	BX = 899Dh ('DI' + 'ET')
	DS:DX -> external procedure (see #0622)
Return: AX = 0000h
Note:	the resident code will call the specified external procedure at the
	  beginning of decompression and when compression is exited on failure
SeeAlso: AX=37DDh

(Table 0622)
Values DIET external procedure is called with:
	STACK:	WORD	class
			FFFDh creation failed for unknown reasons
			FFFEh creation failed due to lack of space
			FFFFh file creation error
			else file handle of DIETed file to be decompressed
		DWORD	-> compressed filename
		DWORD	-> decompressed or temporary filename
Return: SI,DI,BP,DS,ES must be preserved by external procedure
--------k-2137DDBX899D-----------------------
INT 21 - DIET v1.43e - RELEASE EXTERNAL PROCEDURE
	AX = 37DDh
	BX = 899Dh ('DI' + 'ET')
Program: DIET is a transparent file copressor/decompressor by Teddy Matsumoto
Note:	unlinks the external procedure specified by AX=37DCh
SeeAlso: AX=37DCh
--------k-2137DEBX899D-----------------------
INT 21 - DIET v1.43e - READ EMS STATUS
	AX = 37DEh
	BX = 899Dh ('DI' + 'ET')
Return: AX = 0000h
	CX = EMS status
	    0000h not used
	    0001h used as work area
	    0002h used for code and as work area
	DX = EMM handle when EMS is in use
--------k-2137DFBX899D-----------------------
INT 21 - DIET v1.43e - UNLOAD TSR
	AX = 37DFh
	BX = 899Dh ('DI' + 'ET')
Return: AX = status
	    0000h successful
	    00FFh failed
Program: DIET is a transparent file copressor/decompressor by Teddy Matsumoto
SeeAlso: AX=37D0h
Index:	uninstall;DIET
--------D-2138-------------------------------
INT 21 - DOS 2+ - GET COUNTRY-SPECIFIC INFORMATION
	AH = 38h
--DOS 2.x--
	AL = 00h get current-country info
	DS:DX -> buffer for returned info (see #0623,#0624)
Return: CF set on error
	    AX = error code (02h)
	CF clear if successful
	    AX = country code (MS-DOS 2.11 only)
	    buffer at DS:DX filled
--DOS 3+--
	AL = 00h for current country
	AL = 01h thru 0FEh for specific country with code <255 (see="" #0625)="" al="0FFh" for="" specific="" country="" with="" code="">= 255
	   BX = 16-bit country code (see #0625)
	DS:DX -> buffer for returned info (see #0624)
Return: CF set on error
	    AX = error code (02h)
	CF clear if successful
	    AX = country code (Novell NWDOS v7.0)
	    BX = country code
	    DS:DX buffer filled
Note:	this function is not supported by the Borland DPMI host, but no error
	  is returned; as a workaround, one should allocate a buffer in
	  conventional memory with INT 31/AX=0100h and simulate an INT 21 with
	  INT 31/AX=0300h
SeeAlso: AH=65h,INT 10/AX=5001h,INT 2F/AX=110Ch,INT 2F/AX=1404h

Format of DOS 2.00-2.10 country info:
Offset	Size	Description	(Table 0623)
 00h	WORD	date format  0 = USA	mm dd yy
			     1 = Europe dd mm yy
			     2 = Japan	yy mm dd
 02h	BYTE	currency symbol
 03h	BYTE	00h
 04h	BYTE	thousands separator char
 05h	BYTE	00h
 06h	BYTE	decimal separator char
 07h	BYTE	00h
 08h 24 BYTEs	reserved

Format of DOS 2.11+ country info:
Offset	Size	Description	(Table 0624)
 00h	WORD	date format (see #0623)
 02h  5 BYTEs	ASCIZ currency symbol string
 07h  2 BYTEs	ASCIZ thousands separator
 09h  2 BYTEs	ASCIZ decimal separator
 0Bh  2 BYTEs	ASCIZ date separator
 0Dh  2 BYTEs	ASCIZ time separator
 0Fh	BYTE	currency format
		bit 2 = set if currency symbol replaces decimal point
		bit 1 = number of spaces between value and currency symbol
		bit 0 = 0 if currency symbol precedes value
			1 if currency symbol follows value
 10h	BYTE	number of digits after decimal in currency
 11h	BYTE	time format
		bit 0 = 0 if 12-hour clock
			1 if 24-hour clock
 12h	DWORD	address of case map routine
		(FAR CALL, AL = character to map to upper case [>= 80h])
 16h  2 BYTEs	ASCIZ data-list separator
 18h 10 BYTEs	reserved

(Table 0625)
Values for country code:
 001h	United States
 002h	Canadian-French
 003h	Latin America
 01Fh	Netherlands
 020h	Belgium
 021h	France
 022h	Spain
 024h	Hungary (not supported by DR-DOS 5.0)
 026h	Yugoslavia (not supported by DR-DOS 5.0)
 027h	Italy
 029h	Switzerland
 02Ah	Czechoslovakia/Tjekia (not supported by DR-DOS 5.0)
 02Bh	Austria (DR-DOS 5.0)
 02Ch	United Kingdom
 02Dh	Denmark
 02Eh	Sweden
 02Fh	Norway
 030h	Poland (not supported by DR-DOS 5.0)
 031h	Germany
 037h	Brazil (not supported by DR-DOS 5.0)
 03Dh	International English [Australia in DR-DOS 5.0]
 051h	Japan (DR-DOS 5.0, MS-DOS 5.0+)
 052h	Korea (DR-DOS 5.0)
 056h	China (MS-DOS 5.0+)
 058h	Taiwan (MS-DOS 5.0+)
 05Ah	Turkey (MS-DOS 5.0+)
 15Fh	Portugal
 162h	Iceland
 166h	Finland
 311h	Middle East/Saudi Arabia (DR-DOS 5.0,MS-DOS 5.0+)
 3CCh	Israel (DR-DOS 5.0,MS-DOS 5.0+)
--------D-2138--DXFFFF-----------------------
INT 21 - DOS 3+ - SET COUNTRY CODE
	AH = 38h
	DX = FFFFh
	AL = 01h thru FEh for specific country with code <255 al="FFh" for="" specific="" country="" with="" code="">= 255
	   BX = 16-bit country code (see #0625)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
Note:	not supported by OS/2
SeeAlso: INT 2F/AX=1403h
--------D-2139-------------------------------
INT 21 - DOS 2+ - "MKDIR" - CREATE SUBDIRECTORY
	AH = 39h
	DS:DX -> ASCIZ pathname
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (03h,05h) (see #0885 at AH=59h)
Notes:	all directories in the given path except the last must exist
	fails if the parent directory is the root and is full
	DOS 2.x-3.3 allow the creation of a directory sufficiently deep that
	  it is not possible to make that directory the current directory
	  because the path would exceed 64 characters
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=3Ah,AH=3Bh,AH=6Dh,AH=71h,AH=E2h/SF=0Ah,INT 2F/AX=1103h
SeeAlso: INT 60/DI=0511h
--------D-213A-------------------------------
INT 21 - DOS 2+ - "RMDIR" - REMOVE SUBDIRECTORY
	AH = 3Ah
	DS:DX -> ASCIZ pathname of directory to be removed
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (03h,05h,06h,10h) (see #0885 at AH=59h)
Notes:	directory must be empty (contain only '.' and '..' entries)
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=39h,AH=3Bh,AH=71h,AH=E2h/SF=0Bh,INT 2F/AX=1101h,INT 60/DI=0512h
--------D-213B-------------------------------
INT 21 - DOS 2+ - "CHDIR" - SET CURRENT DIRECTORY
	AH = 3Bh
	DS:DX -> ASCIZ pathname to become current directory (max 64 bytes)
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (03h) (see #0885 at AH=59h)
Notes:	if new directory name includes a drive letter, the default drive is
	  not changed, only the current directory on that drive
	changing the current directory also changes the directory in which
	  FCB file calls operate
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
SeeAlso: AH=47h,AH=71h,INT 2F/AX=1105h
--------D-213C-------------------------------
INT 21 - DOS 2+ - "CREAT" - CREATE OR TRUNCATE FILE
	AH = 3Ch
	CX = file attributes (see #0626)
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    AX = file handle
	CF set on error
	    AX = error code (03h,04h,05h) (see #0885 at AH=59h)
Notes:	if a file with the given name exists, it is truncated to zero length
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
	DR-DOS checks the system password or explicitly supplied password at
	  the end of the filename against the reserved field in the directory
	  entry before allowing access
SeeAlso: AH=16h,AH=3Dh,AH=5Ah,AH=5Bh,AH=93h,INT 2F/AX=1117h

Bitfields for file attributes:
Bit(s)	Description	(Table 0626)
 0	read-only
 1	hidden
 2	system
 3	volume label (ignored)
 4	reserved, must be zero (directory)
 5	archive bit
 7	if set, file is shareable under Novell NetWare
--------D-213D-------------------------------
INT 21 - DOS 2+ - "OPEN" - OPEN EXISTING FILE
	AH = 3Dh
	AL = access and sharing modes (see #0627)
	DS:DX -> ASCIZ filename
	CL = attribute mask of files to look for (server call only)
Return: CF clear if successful
	    AX = file handle
	CF set on error
	    AX = error code (01h,02h,03h,04h,05h,0Ch,56h) (see #0885 at AH=59h)
Notes:	file pointer is set to start of file
	file handles which are inherited from a parent also inherit sharing
	  and access restrictions
	files may be opened even if given the hidden or system attributes
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
	DR-DOS checks the system password or explicitly supplied password at
	  the end of the filename against the reserved field in the directory
	  entry before allowing access
	sharing modes are only effective on local drives if SHARE is loaded
SeeAlso: AH=0Fh,AH=3Ch,AX=4301h,AX=5D00h,INT 2F/AX=1116h,INT 2F/AX=1226h

Bitfields for access and sharing modes:
Bit(s)	Description	(Table 0627)
 2-0	access mode
	000 read only
	001 write only
	010 read/write
	011 (DOS 5+ internal) passed to redirector on EXEC to allow
		case-sensitive filenames
 3	reserved (0)
 6-4	sharing mode (DOS 3+) (see #0628)
	000 compatibility mode
	001 "DENYALL" prohiboth read and write access by others
	010 "DENYWRITE" prohiwrite access by others
	011 "DENYREAD" prohiread access by others
	100 "DENYNONE" allow full access by others
	111 network FCB (only available during server call)
 7	inheritance
	if set, file is private to current process and will not be inherited
	  by child processes

(Table 0628)
Values of DOS file sharing behavior:
	  |	Second and subsequent Opens
 First	  |Compat  Deny	  Deny	 Deny	Deny
 Open	  |	   All	  Write	 Read	None
	  |R W RW R W RW R W RW R W RW R W RW
 - - - - -| - - - - - - - - - - - - - - - - -
 Compat R |Y Y Y  N N N	 1 N N	N N N  1 N N
	W |Y Y Y  N N N	 N N N	N N N  N N N
	RW|Y Y Y  N N N	 N N N	N N N  N N N
 - - - - -|
 Deny	R |C C C  N N N	 N N N	N N N  N N N
 All	W |C C C  N N N	 N N N	N N N  N N N
	RW|C C C  N N N	 N N N	N N N  N N N
 - - - - -|
 Deny	R |2 C C  N N N	 Y N N	N N N  Y N N
 Write	W |C C C  N N N	 N N N	Y N N  Y N N
	RW|C C C  N N N	 N N N	N N N  Y N N
 - - - - -|
 Deny	R |C C C  N N N	 N Y N	N N N  N Y N
 Read	W |C C C  N N N	 N N N	N Y N  N Y N
	RW|C C C  N N N	 N N N	N N N  N Y N
 - - - - -|
 Deny	R |2 C C  N N N	 Y Y Y	N N N  Y Y Y
 None	W |C C C  N N N	 N N N	Y Y Y  Y Y Y
	RW|C C C  N N N	 N N N	N N N  Y Y Y
Legend: Y = open succeeds, N = open fails with error code 05h
	C = open fails, INT 24 generated
	1 = open succeeds if file read-only, else fails with error code
	2 = open succeeds if file read-only, else fails with INT 24
SeeAlso: #0848
--------v-213DFF-----------------------------
INT 21 - VIRUS - "JD-448" - INSTALLATION CHECK
	AX = 3DFFh
Return: AX = 4A44h if resident
SeeAlso: AX=357Fh,AX=4203h
--------D-213E-------------------------------
INT 21 - DOS 2+ - "CLOSE" - CLOSE FILE
	AH = 3Eh
	BX = file handle
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (06h) (see #0885 at AH=59h)
Note:	if the file was written to, any pending disk writes are performed, the
	  time and date stamps are set to the current time, and the directory
	  entry is updated
SeeAlso: AH=10h,AH=3Ch,AH=3Dh,INT 2F/AX=1106h,INT 2F/AX=1227h
--------D-213F-------------------------------
INT 21 - DOS 2+ - "READ" - READ FROM FILE OR DEVICE
	AH = 3Fh
	BX = file handle
	CX = number of bytes to read
	DS:DX -> buffer for data
Return: CF clear if successful
	    AX = number of bytes actually read (0 if at EOF before call)
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Notes:	data is read beginning at current file position, and the file position
	  is updated after a successful read
	the returned AX may be smaller than the request in CX if a partial
	  read occurred
	if reading from CON, read stops at first CR
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
BUG:	Novell NETX.EXE v3.26 and 3.31 do not set CF if the read fails due to
	  a record lock (see AH=5Ch), though it does return AX=0005h; this
	  has been documented by Novell
SeeAlso: AH=27h,AH=40h,AH=93h,INT 2F/AX=1108h,INT 2F/AX=1229h
--------G-213F-------------------------------
INT 21 - Turbo Debug HARDWARE BREAKPOINTS - READ STATUS BLOCK
	AH = 3Fh
	BX = handle for character device "TDHDEBUG"
	CX = number of bytes to read
	DS:DX -> buffer for status block (see #0630)
Return: CF clear if successful
	    AX = number of bytes actually read
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
SeeAlso: AH=40h"Turbo Debug"

(Table 0629)
Values for status of Turbo Debugger command:
 00h	successful
 01h	invalid handle
 02h	no more breakpoints available
 03h	hardware does not support specified breakpoint type
 04h	previous command prevents execution
 05h	debugger hardware not found
 06h	hardware failure
 07h	invalid command
 08h	driver not initialized yet
 FEh	recursive entry (hardware breakpoint inside hw bp handler)

Format of Turbo Debugger status block:
Offset	Size	Description	(Table 0630)
 00h	BYTE	status of command (see #0629)
---status for command 01h---
 01h	WORD	device driver interface version number (currently 1)
 03h	WORD	device driver software version
 05h	BYTE	maximum simultaneous hardware breakpoints
 06h	BYTE	configuration bits (see #0631)
 07h	BYTE	supported breakpoint types (see #0632)
 08h	WORD	supported addressing match modes (see #0633)
 0Ah	WORD	supported data matches (see #0634)
 0Ch	BYTE	maximum data match length (01h, 02h, or 04h)
 0Dh	WORD	size of onboard memory (in KB)
 0Fh	WORD	maximum number of trace-back events
 11h	WORD	hardware breakpoint enable byte address segment (0000h if not
		  supported)
---status for command 04h---
 01h	BYTE	handle to use when referring to the just-set breakpoint

Bitfields for Turbo Debugger configuration bits:
Bit(s)	Description	(Table 0631)
 0	CPU and DMA accesses are distinct
 1	can detect DMA transfers
 2	supports data mask
 3	hardware pass counter on breakpoints
 4	can match on data as well as addresses

Bitfields for Turbo Debugger supported breakpoint types:
Bit(s)	Description	(Table 0632)
 0	memory read
 1	memory write
 2	memory read/write
 3	I/O read
 4	I/O write
 5	I/O read/write
 6	instruction fetch

Bitfields for Turbo Debugger supported addressing match modes:
Bit(s)	Description	(Table 0633)
 0	any address
 1	equal to test value
 2	not equal
 3	above test value
 4	below test value
 5	below or equal
 6	above or equal
 7	within range
 8	outside range

Bitfields for Turbo Debugger supported data matches:
Bit(s)	Description	(Table 0634)
 0	any data
 1	equal to test value
 2	not equal
 3	above test value
 4	below test value
 5	below or equal
 6	above or equal
 7	within range
 8	outside range
--------N-213F-------------------------------
INT 21 - PC/TCP IPCUST.SYS - READ CONFIGURATION DATA
	AH = 3Fh
	BX = handle for character device "$IPCUST"
	CX = number of bytes to read
	DS:DX -> buffer for configuration data (see #0635)
Return: CF clear if successful
		 AX = number of bytes actually read
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Notes:	if less than the entire data is read or written, the next read/write
	  continues where the previous one ended; IOCTL calls AX=4402h and
	  AX=4403h both reset the location at which the next operation starts
	  to zero
	the data pointer is also reset to zero if the previous read or write
	  reached or exceeded the end of the data, when the current function
	  is read and the previous was write, or vice versa
	v2.1+ uses a new configuration method, but allows the installation
	  of IPCUST.SYS for backward compatibility with other software which
	  must read the PC/TCP configuration
SeeAlso: AH=40h"IPCUST",AX=4402h"IPCUST",AX=4402h"FTPSOFT"

Format of PC/TCP configuration data:
Offset	Size	Description	(Table 0635)
 00h 12 BYTEs	IPCUST.SYS device driver header
 12h	BYTE	???
 13h	BYTE	???
 14h	WORD	???
 16h	BYTE	bit flags
		bit 0: send BS rather than DEL for BackSpace key
		bit 1: wrap long lines
 17h	BYTE	???
 18h 64 BYTEs	ASCIZ hostname
 58h 64 BYTEs	ASCIZ domain name
		(fully qualified domain name is hostname.domain-name)
 98h 16 BYTEs	ASCIZ username
 A8h 64 BYTEs	ASCIZ full name
 E8h 64 BYTEs	ASCIZ office address
128h 32 BYTEs	ASCIZ phone number
148h	WORD	offset from GMT in minutes
14Ah  4 BYTEs	ASCIZ timezone name
14Eh	WORD	number of time servers
150h  ? DWORDs	(big-endian) IP addresses for time servers
	???
164h	WORD	number of old-style name servers
166h  3 DWORDs	(big-endian) IP addresses for name servers
172h	WORD	number of domain name servers
174h  3 DWORDs	(big-endian) IP addresses for domain name servers
180h	DWORD	(big-endian) IP address of default gateway
184h	DWORD	(big-endian) IP address of log server
188h	DWORD	(big-endian) IP address of cookie server
18Ch	DWORD	(big-endian) IP address of lpr server
190h	DWORD	(big-endian) IP address of imagen print server
194h 54 BYTEs	???
1E8h	WORD	TCP default window size in bytes
1EAh	WORD	TCP low window size
1ECh 64 BYTEs	ASCIZ host tabel filename
22Ch  2 BYTEs	???
22Eh 80 BYTEs	ASCIZ mail relay host name
27Eh	BYTE	???
27Fh	BYTE	??? bit flags
280h 44 BYTEs	???
2ACh	WORD	???
2AEh 202 BYTEs	???
--------N-213F-------------------------------
INT 21 - WORKGRP.SYS - GET ENTRY POINT
	AH = 3Fh
	BX = file handle for device "NET$HLP$"
	CX = 0008h
	DS:DX -> buffer for entry point record (see #0705)
Return: CF clear if successful
	    AX = number of bytes actually read (0 if at EOF before call)
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Program: WORKGRP.SYS is the portion of Microsoft's Workgroup Connection which
	  permits communication with PCs running Windows for Workgroups or
	  LAN Manager
SeeAlso: AX=4402h"WORKGRP.SYS",INT 2F/AX=9400h
--------N-213F-------------------------------
INT 21 - BW-TCP - GET DRIVER INFO
	AH = 3Fh
	BX = file handle for device "ETHDEV27"
	CX = 002Bh
	DS:DX -> buffer for driver info (see #0636)
Return: CF clear if successful
	    AX = number of bytes actually read (0 if at EOF before call)
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Program: BW-TCP is a TCP/IP protocol stack by Beame & Whiteside Software
Notes:	the B&W socket library performs an INT 21/AX=4401h with DX=0060h before
	  making this call to retrieve the driver information; one should also
	  call the private API interrupt with AH=15h
	the installation check for the TCP/IP stack is to test for the
	  existence of the character device UDP-IP10
SeeAlso: INT 14/AH=56h,INT 62/AH=00h"ETHDEV",INT 63/AH=03h,INT 64/AH=00h
Index:	installation check;BW-TCP hardware driver
Index:	installation check;BW-TCP TCPIP.SYS

Format of BW-TCP driver info:
Offset	Size	Description	(Table 0636)
 00h	WORD	I/O base address
 02h	BYTE	shared memory page (01h = segment 0100h, etc.)
 03h	BYTE	interrupt vector for private API
 04h	BYTE	IRQ used by board
 05h	WORD	size of data buffer
 07h	WORD	maximum transfer window
 09h	WORD	time zone
 0Bh	BYTE	address type (01h user, 04h RARP, 05h BOOTP)
 0Ch	DWORD	internet address
 10h	WORD	"value" ???
 12h	BYTE	subnet mask
 13h	WORD	"ether_pointer" ???
 15h	WORD	offset in device driver of log server records (see #0637)
 17h	WORD	offset in device driver of name server records (see #0637)
 19h	WORD	offset in device driver of print server records (see #0637)
 1Bh	WORD	offset in device driver of time server records (see #0637)
 1Dh	WORD	offset in device driver of gateway records (see #0637)
 1Fh	WORD	segment address of device driver
 21h	BYTE	transfer size
 22h  9 BYTEs	network adapter board name
---11/21/91+ ---
 23h	BYTE	ETHDEV version (major in high nybble, minor in low nybble)
 24h	BYTE	ETHDEV revision
 25h	BYTE	TCPIP version (major in high nybble, minor in low nybble)
 26h	BYTE	TCPIP revision
 27h	BYTE	BWRPC version (major in high nybble, minor in low nybble)
 28h	BYTE	BWRPC revision
 29h	BYTE	BWNFS version (major in high nybble, minor in low nybble)
 2Ah	BYTE	BWNFS revision
 2Bh	BYTE	Telnet version (major in high nybble, minor in low nybble)
 2Ch	BYTE	Telnet revision
 2Dh	BYTE	NETBIOS version (major in high nybble, minor in low nybble)
 2Eh	BYTE	NETBIOS revision
Note:	for each driver, if version=0, the driver is not installed or does
	  not support the version check

Format of BW-TCP server records:
Offset	Size	Description	(Table 0637)
 00h	BYTE	number of server records following
 01h  N DWORDs	internet addresses of servers
--------y-213F-------------------------------
INT 21 - Trusted Access - NB.SYS - GET STATE
	AH = 3Fh
	BX = file handle for device "$$NB$$NB"
	CX = 0002h (size of state)
	DS:DX -> buffer for state record (see #0638)
Return: CF clear if successful
	    AX = number of bytes actually read (0 if at EOF before call)
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Program: Trusted Access is a security and access-control package by Lassen
	  Software, Inc.; NB.SYS is a device driver to prevent the user from
	  terminating CONFIG.SYS or AUTOEXEC.BAT with Ctrl-Break
SeeAlso: AH=40h"NB.SYS",AX=4101h

Format of Trusted Access state record:
Offset	Size	Description	(Table 0638)
 00h	BYTE	00h off, 01h on
 01h	BYTE	keys being disabled
		bit 0: Ctrl-Break
		bit 1: SysReq
		bit 2: Ctrl and Alt
		bit 3: Ctrl-Alt-Del
		bit 7: all keys (overrides other bits)
----------213F-------------------------------
INT 21 U - IFSHLP.SYS - GET ENTRY POINT
	AH = 3Fh
	BX = file handle for device "IFS$HLP$"
	CX = 0008h (size of buffer in bytes)
	DS:DX -> buffer for entry point record (see #0639)
Return: CF clear if successful
	    AX = number of bytes actually read (0 if at EOF before call)
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Program: IFSHLP.SYS is a support driver for Microsoft Windows for Workgroups
SeeAlso: AX=4402h"IFSHLP"

Format of IFSHLP.SYS entry point record:
Offset	Size	Description	(Table 0639)
 00h  4 BYTEs	(call) signature 70h E9h 34h 37h
		signature must be 34h 37h 70h EFh if called via IOCTL
 04h	DWORD	(ret) pointer to FAR call entry point (see #0640)

(Table 0640)
Call IFSHLP.SYS entry point with:
	STACK:	WORD	function number (00h-0Ch)
			00h ???
			01h set ??? intercept
			02h remove ??? intercept
			03h ??? LPT2
			04h ??? LPT1
			05h ??? and remove ??? intercept
			06h set ??? flag
			07h clear ??? flag
			08h get ??? flag word
			09h ???
			0Ah ???
			0Bh ???
			0Ch get ???
---if function 00h---
Return: AX = ??? (0024h seen)
	DX = resident code segment
---if function 01h---
	STACK:	DWORD	new intercept address
Return: AX = status
	    0000h successful
	    0001h failed (already set)
		DX = 0000h
---if function 02h---
Return: AX = status
	    0000h successful
	    0001h failed (not set)
	DX = 0000h
---if function 03h,04h---
	STACK:	WORD	???
Return: AX = 0000h
	DX = 0000h
---if function 05h---
	???
---if function 06h---
Return: AX = 0001h and DX = 0000h if already set
	AX,DX unchanged if successful
---if function 07h---
Return: AX = 0001h and DX = 0000h if not set
	AX,DX unchanged if successful
---if function 08h---
Return: DX = 0000h
	AX = flags (bit 0 set/cleared by functions 06h and 07h)
---if function 09h---
Return: AX = status
	    0000h successful
	    0001h failed (already called)
---if function 0Ah---
	STACK:	WORD	???
	???
---if function 0Bh---
Return: AX = status
		 0000h successful
	    0001h failed (not set)
---if function 0Ch---
Return: AX = 0000h
	ES:BX -> ??? data
---if function > 0Ch---
Return:	AX = 0001h
	DX = 0000h
--------D-2140-------------------------------
INT 21 - DOS 2+ - "WRITE" - WRITE TO FILE OR DEVICE
	AH = 40h
	BX = file handle
	CX = number of bytes to write
	DS:DX -> data to write
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Notes:	if CX is zero, no data is written, and the file is truncated or
	  extended to the current position
	data is written beginning at the current file position, and the file
	  position is updated after a successful write
	the usual cause for AX < cx="" on="" return="" is="" a="" full="" disk="" bug:="" a="" write="" of="" zero="" bytes="" will="" appear="" to="" succeed="" when="" it="" actually="" failed="" if="" the="" write="" is="" extending="" the="" file="" and="" there="" is="" not="" enough="" disk="" space="" for="" the="" expanded="" file="" (dos="" 5.0-6.0);="" one="" should="" therefore="" check="" whether="" the="" file="" was="" in="" fact="" extended="" by="" seeking="" to="" 0="" bytes="" from="" the="" end="" of="" the="" file="" (int="" 21/ax="4202h/CX=0/DX=0)" under="" the="" flashtek="" x-32="" dos="" extender,="" the="" pointer="" is="" in="" ds:edx="" seealso:="" ah="28h,AH=3Fh,AH=93h,INT" 2f/ax="1109h" --------g-2140-------------------------------="" int="" 21="" -="" turbo="" debug="" hardware="" breakpoints="" -="" send="" cmd="" to="" hardware="" brkpnt="" driver="" ah="40h" bx="handle" for="" character="" device="" "tdhdebug"="" cx="number" of="" bytes="" to="" write="" ds:dx="" -=""> hardware breakpoint command (see #0641)
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Note:	results are retrieved by reading from the device
SeeAlso: AH=3Fh"Turbo Debug"

Format of Turbo Debugger hardware breakpoint commands:
Offset	Size	Description	(Table 0641)
 00h	BYTE	command code
		00h install interrupt vectors
		01h get hardware capabilities
		02h enable hardware breakpoints
		03h disable hardware breakpoints
		04h set hardware breakpoint
		05h clear hardware breakpoint
		06h set I/O base address and reset hardware
		07h restore interrupt vectors
---command code 00h---
 01h	DWORD	pointer to Turbo Debugger entry point to be jumped to on
		  hardware breakpoint; call with CPU state the same as on
		  the breakpoint except for pushing AX and placing an entry
		  code (FFh if breakout button or breakpoint handle) in AH
---command code 04h---
 01h	BYTE	breakpoint type
		00h memory read
		01h memory write
		02h memory read/write
		03h I/O read
		04h I/O write
		05h I/O read/write
		06h instruction fetch
 02h	BYTE	address matching mode (see #0642)
 03h	DWORD	32-bit linear low address
 07h	DWORD	32-bit linear high address
 0Bh	WORD	pass count
 0Dh	BYTE	data size (01h, 02h, or 04h)
 0Eh	BYTE	source of matched bus cycle (01h CPU, 02h DMA, 03h either)
 0Fh	BYTE	data-matching mode (see #0642)
 10h	DWORD	low data value
 14h	DWORD	high data value
 18h	DWORD	data mask specifying which bits of the data are tested
---command code 05h---
 01h	BYTE	handle of breakpoint to clear (breakpoint returned from command
		  04h)
---command code 06h---
 01h	WORD	base address of hardware debugger board

(Table 0642)
Values for Turbo Debugger address/data matching mode:
 00h	match any
 01h	equal to test value
 02h	different from test value
 03h	above test value
 04h	below test value
 05h	below or equal to test value
 06h	above or equal to test value
 07h	within inclusive range
 08h	outside specified range
--------N-2140-------------------------------
INT 21 - PC/TCP IPCUST.SYS - WRITE CONFIGURATION DATA
	AH = 40h
	BX = handle for character device "$IPCUST"
	CX = number of bytes to write
	DS:DX -> buffer for configuration data (AH=3Fh"IPCUST")
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Notes:	if less than the entire data is read or written, the next read/write
	  continues where the previous one ended; IOCTL calls AX=4402h and
	  AX=4403h both reset the location at which the next operation starts
	  to zero
	the data pointer is also reset to zero if the previous read or write
	  reached or exceeded the end of the data, when the current function
	  is read and the previous was write, or vice versa
	v2.1+ uses a new configuration method, but allows the installation
	  of IPCUST.SYS for backward compatibility with other software which
	  must read the PC/TCP configuration
SeeAlso: AH=3Fh"IPCUST",AX=4402h"IPCUST"
--------y-2140-------------------------------
INT 21 U - Trusted Access - NB.SYS - SET STATE
	AH = 40h
	BX = handle for character device "$$NB$$NB"
	DS:DX -> state record (see #0638)
	CX ignored
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (05h,06h) (see #0885 at AH=59h)
Program: Trusted Access is a security and access-control package by Lassen
	  Software, Inc.; NB.SYS is a device driver to prevent the user from
	  terminating CONFIG.SYS or AUTOEXEC.BAT with Ctrl-Break
SeeAlso: AH=3Fh"NB.SYS"
--------j-214000BX0002-----------------------
INT 21 - FARTBELL.EXE - INSTALLATION CHECK
	AX = 4000h
	BX = 0002h
	CX = 0000h
	DS:DX = 0000h:0000h
Return: CF clear if installed
	    AX = CS of resident code
Program: FARTBELL is a joke program by Guenther Thiele which makes various
	  noises when programs output a bell
SeeAlso: AX=4001h
--------j-214001BX0002-----------------------
INT 21 - FARTBELL.EXE - FORCE NOISE
	AX = 4001h
	BX = 0002h
	CX = 0000h
	DS:DX = 0000h:0000h
Program: FARTBELL is a joke program by Guenther Thiele which makes various
	  noises when programs output a bell
SeeAlso: AX=4000h
--------D-2141-------------------------------
INT 21 - DOS 2+ - "UNLINK" - DELETE FILE
	AH = 41h
	DS:DX -> ASCIZ filename (no wildcards, but see notes)
	CL = attribute mask for deletion (server call only, see notes)
Return: CF clear if successful
	    AX destroyed (DOS 3.3) AL seems to be drive of deleted file
	CF set on error
	    AX = error code (02h,03h,05h) (see #0885 at AH=59h)
Notes:	(DOS 3.1+) wildcards are allowed if invoked via AX=5D00h, in which case
	  the filespec must be canonical (as returned by AH=60h), and only
	  files matching the attribute mask in CL are deleted
	DR-DOS 5.0-6.0 returns error code 03h if invoked via AX=5D00h
	DOS does not erase the file's data; it merely becomes inaccessible
	  because the FAT chain for the file is cleared
	deleting a file which is currently open may lead to filesystem
	  corruption.  Unless SHARE is loaded, DOS does not close the handles
	  referencing the deleted file, thus allowing writes to a nonexistant
	  file.
	under DRDOS and DR Multiuser DOS, this function will fail if the file
	  is currently open
	under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
BUG:	DR-DOS 3.41 crashes if called via AX=5D00h
SeeAlso: AH=13h,AX=4301h,AX=4380h,AX=5D00h,AH=60h,AH=71h,AX=F244h
SeeAlso: INT 2F/AX=1113h
--------y-214101DXFFFE-----------------------
INT 21 - SoftLogic Data Guardian - ???
	AX = 4101h
	DX = FFFEh
Return: AX = 0000h if installed
Note:	resident code sets several internal variables on this call
SeeAlso: AH=3Fh"NB.SYS",INT 16/AX=FFA3h/BX=0000h
--------D-2142-------------------------------
INT 21 - DOS 2+ - "LSEEK" - SET CURRENT FILE POSITION
	AH = 42h
	AL = origin of move
	    00h start of file
	    01h current file position
	    02h end of file
	BX = file handle
	CX:DX = offset from origin of new file position
Return: CF clear if successful
	    DX:AX = new file position in bytes from start of file
	CF set on error
	    AX = error code (01h,06h) (see #0885 at AH=59h)
Notes:	for origins 01h and 02h, the pointer may be positioned before the
	  start of the file; no error is returned in that case, but subsequent
	  attempts at I/O will produce errors
	if the new position is beyond the current end of file, the file will
	  be extended by the next write (see AH=40h)
BUG:	using this method to grow a file from zero bytes to a very large size
	  can corrupt the FAT in some versions of DOS; the file should first
	  be grown from zero to one byte and then to the desired large size
SeeAlso: AH=24h,INT 2F/AX=1228h
--------v-214203-----------------------------
INT 21 - VIRUS - "Shake" - INSTALLATION CHECK
	AX = 4203h
Return: AX = 1234h if resident
SeeAlso: AX=3DFFh,AX=4243h
--------v-214243-----------------------------
INT 21 - VIRUS - "Invader" - INSTALLATION CHECK
	AX = 4243h
Return: AX = 5678h if resident
SeeAlso: AX=4203h,AX=4B04h
--------D-214300-----------------------------
INT 21 - DOS 2+ - GET FILE ATTRIBUTES
	AX = 4300h
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    CX = file attributes (see #0643)
	    AX = CX (DR-DOS 5.0)
	CF set on error
	    AX = error code (01h,02h,03h,05h) (see #0885 at AH=59h)
Notes:	under the FlashTek X-32 DOS extender, the filename pointer is in DS:EDX
	under DR-DOS 3.41 and 5.0, attempts to change the subdirectory bit are
	  simply ignored without an error
BUG:	Windows for Workgroups returns error code 05h (access denied) instead
	  of error code 02h (file not found) when attempting to get the
	  attributes of a nonexistent file.  This causes open() with O_CREAT
	  and fopen() with the "w" mode to fail in Borland C++.
SeeAlso: AX=4301h,AX=4310h,AH=71h,AH=B6h,INT 2F/AX=110Fh,INT 60/DI=0517h
--------D-214301-----------------------------
INT 21 - DOS 2+ - "CHMOD" - SET FILE ATTRIBUTES
	AX = 4301h
	CX = new file attributes (see #0643)
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,02h,03h,05h) (see #0885 at AH=59h)
Notes:	will not change volume label or directory attribute bits, but will
	  change the other attribute bits of a directory (the directory
	  bit must be cleared to successfully change the other attributes of a
	  directory, but the directory will not be changed to a normal file as
	  a result)
	MS-DOS 4.01 reportedly closes the file if it is currently open
	for security reasons, the Novell NetWare execute-only bit can never
	  be cleared; the file must be deleted and recreated
	under the FlashTek X-32 DOS extender, the filename pointer is in DS:EDX
	DOS 5.0 SHARE will close the file if it is currently open in sharing-
	  compatibility mode, otherwise a sharing violation critical error is
	  generated if the file is currently open
SeeAlso: AX=4300h,AX=4311h,AH=71h,INT 2F/AX=110Eh

Bitfields for file attributes:
Bit(s)	Description	(Table 0643)
 7	shareable (Novell NetWare)
 6	unused
 5	archive
 4	directory
 3	volume label
	execute-only (Novell NetWare)
 2	system
 1	hidden
 0	read-only
--------D-214302-----------------------------
INT 21 - DOS 7 (Chicago) - GET VOLUME INFORMATION
	AX = 4302h
	details not yet available
SeeAlso: AH=71h,AH=72h
--------O-214302-----------------------------
INT 21 - DR-DOS 3.41+ internal - GET ACCESS RIGHTS
	AX = 4302h
	DS:DX -> ASCIZ pathname
Return: CF clear if successful
	    CX = access rights (see #0644)
		 AX = CX (DR-DOS 5.0)
	CF set on error
	    AX = error code
Desc:	Determine which operations the calling program may perform on a
	  specified file without being required to provide a password.
Notes:	this protection scheme has been coordinated on all current Digital
	  Research/Novell operating systems (DR-DOS 3.41+, DRMDOS 5.x, and
	  FlexOS 2+)
	this function is documented in DR-DOS 6.0 and corresponds to the
	  "Get/Set File Attributes" function, subfunction 2, documented in
	  Concurrent DOS.
	only FlexOS actually uses the "execution" bits; DR-DOS 3.41+ treats
	  them as "read" bits.
	DR-DOS 3.41-5.x only use bits 0-3.  Only DR-DOS 6.0 using a
	  DRMDOS 5.x security system allowing for users and groups uses bits
	  4-11.
SeeAlso: AX=4303h

Bitfields for DR-DOS file access rights:
Bit(s)	Description	(Table 0644)
 0	owner delete requires password
 1	owner execution requires password (FlexOS)
 2	owner write requires password
 3	owner read requires password
 4	group delete requires password
 5	group execution requires password (FlexOS)
 6	group write requires password
 7	group read requires password
 8	world delete requires password
 9	world execution requires password (FlexOS)
 10	world write requires password
 11	world read requires password
--------O-214303-----------------------------
INT 21 - DR-DOS 3.41+ internal - SET ACCESS RIGHTS AND PASSWORD
	AX = 4303h
	CX = access rights
	     bits 11-0: access rights (see #0644)
	     bit 15: new password is to be set
	DS:DX -> ASCIZ pathname
	[DTA] = new password if CX bit 15 is set (blank-padded to 8 characters)
Return: CF clear if successful
	CF set on error
	    AX = error code
Notes:	if the file is already protected, the old password must be added after
	  the pathname, separated by a ";"
	this function is documented in DR-DOS 6.0 and corresponds to the
	  "Get/Set File Attributes" function, subfunction 3, documented in
	  Concurrent DOS.
SeeAlso: AH=0Fh,AH=17h,AX=4302h"DR-DOS",AX=4305h,AX=4454h
--------O-214304-----------------------------
INT 21 U - DR-DOS 5.0-6.0 internal - GET ENCRYPTED PASSWORD
	AX = 4304h
	DS:DX -> ASCIZ filename
	???
Return: CF clear if successful
	    CX = AX = 0000h if no password assigned to file
	CF set on error
	    AX = error code (see #0885 at AH=59h)
Note:	this function is only supported by DR-DOS 5.0 and 6.0 and DRMDOS 5.1
SeeAlso: AX=4303h,AX=4305h
--------O-214305-----------------------------
INT 21 U - DR-DOS 5.0-6.0 internal - SET EXTENDED FILE ATTRIBUTES
	AX = 4305h
	DS:DX -> ASCIZ filename
	???
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at AH=59h)
Desc:	this function allows the extended attributes, and optionally the
	  encrypted password, of a file to be set.
Note:	this function is only supported by DR-DOS 5.0 and 6.0 and DRMDOS 5.1
SeeAlso: AX=4304h,AX=4311h
--------O-214306-----------------------------
INT 21 - DR-DOS 6.0 - GET FILE OWNER
	AX = 4306h
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    AX = CX = value set with AX=4307h
	CF set on error
	    AX = error code (see #0885 at AH=59h)
SeeAlso: AX=4307h
--------O-214307-----------------------------
INT 21 - DR-DOS 6.0 - SET FILE OWNER
	AX = 4307h
	CX = ??? (owner identification number?)
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at AH=59h)
SeeAlso: AX=4306h
--------N-214310-----------------------------
INT 21 - Banyan VINES 2.1+ - GET EXTENDED FILE ATTRIBUTES
	AX = 4310h
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    CH = attributes (see #0645)
	CF set on error
	    AX = error code (01h,02h,03h,05h) (see #0885 at AH=59h)
Note:	the filename may be a directory but must be on a VINES file service
SeeAlso: AX=4300h,AX=4311h,AH=B6h,INT 2F/AX=110Fh
--------N-214311-----------------------------
INT 21 - Banyan VINES 2.1+ - SET EXTENDED FILE ATTRIBUTES
	AX = 4311h
	CH = new attributes (see #0645)
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,02h,03h,05h) (see #0885 at AH=59h)
Note:	the filename may be a directory but must be on a VINES file service
SeeAlso: AX=4301h,AX=4305h,AX=4310h,INT 2F/AX=110Eh

Bitfields for VINES extended file attributes:
Bit(s)	Description	(Table 0645)
 7	unused
 6	shareable
 5	execute-only
 4-0	unused
--------O-214380-----------------------------
INT 21 - Novell DOS 7 - UNDELETE PENDING DELETE FILE
	AX = 4380h
	???
Return: ???
SeeAlso: AH=41h,AX=4381h
--------O-214381-----------------------------
INT 21 - Novell DOS 7 - PURGE PENDING DELETE FILE
	AX = 4381h
	???
Return: ???
SeeAlso: AH=41h,AX=4380h
--------D-214400-----------------------------
INT 21 - DOS 2+ - IOCTL - GET DEVICE INFORMATION
	AX = 4400h
	BX = handle
Return: CF clear if successful
	    DX = device information word (see #0646)
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h) (see #0885 at AH=59h)
Notes:	value in DH corresponds to high byte of device driver's attribute word
	  if handle refers to a character device
	Novell NetWare reportedly does not return a drive number in bits 5-0
	  for a disk file
SeeAlso: AX=4401h,INT 2F/AX=122Bh

Bitfields for device information word:
Bit(s)	Description	(Table 0646)
 character device
  14	device driver can process IOCTL requests (see AX=4402h)
  13	output until busy supported
  11	driver supports OPEN/CLOSE calls
   7	set (indicates device)
   6	EOF on input
   5	raw (binary) mode
   4	device is special (uses INT 29)
   3	clock device
   2	NUL device
   1	standard output
   0	standard input
 disk file
  15	file is remote (DOS 3+)
  14	don't set file date/time on closing (DOS 3+)
  11	media not removable
   8	(DOS 4 only) generate INT 24 if no disk space on write or read past
	  end of file
   7	clear (indicates file)
   6	file has not been written
  5-0	drive number (0 = A:)
--------D-214401-----------------------------
INT 21 - DOS 2+ - IOCTL - SET DEVICE INFORMATION
	AX = 4401h
	BX = handle (must refer to character device)
	DX = device information word (see #0646)
	    (DH must be zero)
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4400h,INT 2F/AX=122Bh
--------D-214402-----------------------------
INT 21 - DOS 2+ - IOCTL - READ FROM CHARACTER DEVICE CONTROL CHANNEL
	AX = 4402h
	BX = file handle referencing character device
	CX = number of bytes to read
	DS:DX -> buffer
Return: CF clear if successful
		 AX = number of bytes actually read
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	format of data is driver-specific (see below for some specific cases)
SeeAlso: AX=4400h,AX=4403h,AX=4404h,INT 2F/AX=122Bh
--------N-214402-----------------------------
INT 21 - Network Driver Interface Specification (NDIS) 2.0.1 - PROTOCOL MANAGER
	AX = 4402h
	BX = file handle for device "PROTMAN$"
	CX = 000Eh (size of request block)
	DS:DX -> request block (see #0647,#0648,#0649,#0650,#0651,#0655,#0656)
Return: CF clear if successful
	    AX = number of bytes actually read
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4402h"FTPSOFT"

Format of NDIS request block for GetProtocolManagerInfo:
Offset	Size	Description	(Table 0647)
 00h	WORD	01h
 02h	WORD	returned status (see #0657)
 04h	DWORD	returned pointer to structure representing parsed user config
 08h	DWORD	unused
 0Ch	WORD	returned BCD version of NDIS on which Protocol Manager is based
SeeAlso: #0648,#0649,#0650,#0651,#0652,#0653,#0654,#0655,#0656

Format of NDIS request block for RegisterModule:
Offset	Size	Description	(Table 0648)
 00h	WORD	02h
 02h	WORD	returned status (see #0657)
 04h	DWORD	pointer to module's common characteristics table (see #0658)
 08h	DWORD	pointer to list of modules to which the module is to be bound
 0Ch	WORD	unused
SeeAlso: #0647,#0649,#0650,#0651,#0652,#0653,#0654,#0655,#0656

Format of NDIS request block for BindAndStart:
Offset	Size	Description	(Table 0649)
 00h	WORD	03h
 02h	WORD	returned status (see #0657)
 04h	DWORD	caller's virtual address in FailingModules structure
 08h	DWORD	unused
 0Ch	WORD	unused
SeeAlso: #0647,#0648,#0650,#0651,#0652,#0653,#0654,#0655,#0656

Format of NDIS request block for GetProtocolManagerLinkage:
Offset	Size	Description	(Table 0650)
 00h	WORD	04h
 02h	WORD	returned status (see #0657)
 04h	DWORD	returned dispatch point
 08h	DWORD	unused
 0Ch	WORD	returned protocol manager DS
Note:	the dispatch point may be called as follows instead of using this IOCTL
	STACK: WORD  protocol manager DS
	       DWORD pointer to request block
	Return: AX = returned status
		STACK popped
SeeAlso: #0647,#0648,#0649,#0651,#0652,#0653,#0654,#0655,#0656

Format of NDIS request block for GetProtocolIniPath:
Offset	Size	Description	(Table 0651)
 00h	WORD	05h
 02h	WORD	returned status (see #0657)
 04h	DWORD	pointer to a buffer for the ASCIZ pathname of PROTOCOL.INI
 08h	DWORD	unused
 0Ch	WORD	buffer length
SeeAlso: #0647,#0648,#0649,#0650,#0652,#0653,#0654,#0655,#0656

Format of NDIS request block for RegisterProtocolManagerInfo:
Offset	Size	Description	(Table 0652)
 00h	WORD	06h
 02h	WORD	returned status (see #0657)
 04h	DWORD	pointer to structure containing parsed user config file
 08h	DWORD	unused
 0Ch	WORD	length of structure
SeeAlso: #0647,#0648,#0649,#0650,#0651,#0653,#0654,#0655,#0656

Format of NDIS request block for InitAndRegister:
Offset	Size	Description	(Table 0653)
 00h	WORD	07h
 02h	WORD	returned status (see #0657)
 04h	DWORD	unused
 08h	DWORD	poitner to ASCIZ name of the module to be prebind initialized
 0Ch	WORD	unused
SeeAlso: #0647,#0648,#0649,#0650,#0651,#0652,#0654,#0655,#0656

Format of NDIS request block for UnbindAndStop:
Offset	Size	Description	(Table 0654)
 00h	WORD	08h
 02h	WORD	returned status (see #0657)
 04h	DWORD	failing modules as for BindAndStart
 08h	DWORD	if not 0000h:0000h, pointer to ASCIZ name of module to unbind
		if 0000h:0000h, terminate a set of previously dynamically
		  bound protocol modules
 0Ch	WORD	unused
SeeAlso: #0647,#0648,#0649,#0650,#0651,#0652,#0653,#0655,#0656

Format of NDIS request block for BindStatus:
Offset	Size	Description	(Table 0655)
 00h	WORD	09h
 02h	WORD	returned status (see #0657)
 04h	DWORD	must be 0000h:0000h
		on return, points to root tree
 08h	DWORD	0000h:0000h
 0Ch	WORD	unused under DOS
SeeAlso: #0647,#0648,#0649,#0650,#0651,#0652,#0653,#0654,#0656

Format of NDIS request block for RegisterStatus:
Offset	Size	Description	(Table 0656)
 00h	WORD	0Ah
 02h	WORD	returned status (0000h, 0008h, 002Ch) (see #0657)
 04h	DWORD	0000h:0000h
 08h	DWORD	pointer to 16-byte ASCIZ module name
 0Ch	WORD	0000h
Note:	not supported by the 10NET v5.0 PROTMAN$ driver
SeeAlso: #0647,#0648,#0649,#0650,#0651,#0652,#0653,#0654,#0655

(Table 0657)
Values for NDIS status code:
 0000h	success
 0001h	wait for release--protocol has retained control of the data buffer
 0002h	request queued
 0003h	frame not recognized
 0004h	frame rejected
 0005h	frame should be forwarded
 0006h	out of resource
 0007h	invalid parameter
 0008h	invalid function
 0009h	not supported
 000Ah	hardware error
 000Bh	transmit error
 000Ch	unrecognized destination
 000Dh	buffer too small
 0020h	already started
 0021h	binding incomplete
 0022h	driver not initialized
 0023h	hardware not found
 0024h	hardware failure
 0025h	configuration failure
 0026h	interrupt conflict
 0027h	MAC incompatible
 0028h	initialization failed
 0029h	no binding
 002Ah	network may be disconnected
 002Bh	incompatible OS version
 002Ch	already registered
 002Dh	path not found
 002Eh	insufficient memory
 002Fh	info not found
 00FFh	general failure
 F000h-FFFFh reserved for vendor-specific codes, treated as general failure

Format of NDIS common characteristics table:
Offset	Size	Description	(Table 0658)
 00h	WORD	size of table in bytes
 02h	BYTE	NDIS major version
 03h	BYTE	NDIS minor version
 04h	WORD	reserved
 06h	BYTE	module major version
 07h	BYTE	module minor version
 08h	DWORD	module function flag bits
		bit 0: binding at upper boundary supported
		bit 1: binding at lower boundary supported
		bit 2: dynamically bound
		bits 3-31 reserved, must be 0
 0Ch 16 BYTEs	ASCIZ module name
 1Ch	BYTE	upper boundary protocol level (see #0659)
 1Dh	BYTE	upper boundary interface type
		for MACs: 1 = MAC
		for data links and transports: to be defined
		for session: 1 = NCB
		any level: 0 = private (ISV-defined)
 1Eh	BYTE	lower boundary protocol level (see #0659)
 1Fh	BYTE	lower boundary interface type
		same as offset 1Dh
 20h	WORD	module ID filled in by protocol manager
 22h	WORD	module DS
 24h	DWORD	system request entry point
 28h	DWORD	pointer to service-specific characteristics (see #0661,#0663)
		0000h:0000h if none
 2Ch	DWORD	pointer to service-specific status, or 0000h:0000h if none
		  (see #0664)
 30h	DWORD	pointer to upper dispatch table (see #0660)
		0000h:0000h if none
 34h	DWORD	pointer to lower dispatch table (see #0660)
		0000h:0000h if none
 38h  2 DWORDs	reserved, must be 0
Note:	for compatibility with NDIS 1.x.x, a major version of 00h is
	  interpreted as 01h

(Table 0659)
Values for NDIS boundary protocol level:
 00h	physical
 01h	Media Access Control
 02h	Data link
 03h	network
 04h	transport
 05h	session
 FFh	not specified

Format of NDIS dispatch table:
Offset	Size	Description	(Table 0660)
 00h	DWORD	-> common characteristics table (see #0658)
 04h  4 BYTEs	???
 08h	DWORD	-> ??? function (called with 12 bytes of stack arguments)
 0Ch	DWORD	-> ??? function (called with 10 bytes of stack arguments)
 10h	DWORD	-> ??? function (called with 16 bytes of stack arguments)
 14h	DWORD	-> ??? function (called with 4 bytes of stack arguments)
 18h	DWORD	-> ??? function (called with 18 bytes of stack arguments)
 1Ch	DWORD	-> ??? function (called with 12 bytes of stack arguments)

Format of MAC Service-Specific Characteristics Table:
Offset	Size	Description	(Table 0661)
 00h	WORD	length of table in bytes
 02h 16 BYTEs	ASCIZ MAC type name, "802.3", "802.4", "802.5", "802.6", "DIX",
		  "DIX+802.3", "APPLETALK", "ARCNET", "FDDI", "SDLC", "BSC",
		  "HDLC", or "ISDN"
 12h	WORD	length of station addresses in bytes
 14h 16 BYTEs	permanent station address
 24h 16 BYTEs	current station address
 34h	DWORD	current functional adapter address (00000000h if none)
 38h	DWORD	pointer to multicast address list
 3Ch	DWORD	link speed in bits/sec
 40h	DWORD	service flags (see #0662)
 44h	WORD	maximum frame size which may be both sent and received
 46h	DWORD	total transmit buffer capacity in bytes
 4Ah	WORD	transmit buffer allocation block size in bytes
 4Ch	DWORD	total receive buffer capacity in bytes
 50h	WORD	receive buffer allocation block size in bytes
 52h  3 BYTEs	IEEE vendor code
 55h	BYTE	vendor adapter code
 56h	DWORD	pointer to ASCIZ vendor adapter description
 5Ah	WORD	IRQ used by adapter
 5Ch	WORD	transmit queue depth
 5Eh	WORD	maximum supported number of data blocks in buffer descriptors
 60h  N BYTEs	vendor-specific info
SeeAlso: #0663

Bitfields for service flags:
Bit(s)	Description	(Table 0662)
 0	supports broadcast
 1	supports multicast
 2	supports functional/group addressing
 3	supports promiscuous mode
 4	station address software settable
 5	statistics always current
 6	supports InitiateDiagnostics
 7	supports loopback
 8	MAC does primarily ReceiveChain indications instead of ReceiveLookahead
	indications
 9	supports IBM source routing
 10	supports MAC reset
 11	supports Open/Close adapter
 12	supports interrupt request
 13	supports source routing bridge
 14	supports GDT virtual addresses (OS/2 version)
 15	multiple TransferDatas allowed durign a single indication
 16	MAC normally sets FrameSize = 0 in ReceiveLookahead
 17-31	reserved, must be 0

Format of NetBIOS Service-Specific Characteristics Table:
Offset	Size	Description	(Table 0663)
 00h	WORD	length of table in bytes
 02h 16 BYTEs	ASCIZ type name of NetBIOS module
 12h	WORD	NetBIOS module code
 14h  N BYTEs	vendor-specific info
SeeAlso: #0661

Format of MAC Service-Specific Status Table:
Offset	Size	Description	(Table 0664)
 00h	WORD	length of table in bytes
 02h	DWORD	seconds since 0:00 1/1/70 when diagnostics last run
		(FFFFFFFFh = never)
 06h	DWORD	MAC status bits (see #0665)
 0Ah	WORD	current packet filter flags (see #0666)
 0Ch	DWORD	pointer to media-specific status table or 0000h:0000h
 10h	DWORD	seconds past 0:00 1/1/70 of last ClearStatistics
 14h	DWORD	total frames received (FFFFFFFFh = not counted)
 18h	DWORD	frames with CRC error (FFFFFFFFh = not counted)
 1Ch	DWORD	total bytes received (FFFFFFFFh = not counted)
 20h	DWORD	frames discarded--no buffer space (FFFFFFFFh = not counted)
 24h	DWORD	multicast frames received (FFFFFFFFh = not counted)
 28h	DWORD	broadcast frames received (FFFFFFFFh = not counted)
 2Ch	DWORD	frames with errors (FFFFFFFFh = not counted)
 30h	DWORD	overly large frames (FFFFFFFFh = not counted)
 34h	DWORD	frames less than minimum size (FFFFFFFFh = not counted)
 38h	DWORD	multicast bytes received (FFFFFFFFh = not counted)
 3Ch	DWORD	broadcast bytes received (FFFFFFFFh = not counted)
 40h	DWORD	frames discarded--hardware error (FFFFFFFFh = not counted)
 44h	DWORD	total frames transmitted (FFFFFFFFh = not counted)
 48h	DWORD	total bytes transmitted (FFFFFFFFh = not counted)
 4Ch	DWORD	multicast frames transmitted (FFFFFFFFh = not counted)
 50h	DWORD	broadcast frames transmitted (FFFFFFFFh = not counted)
 54h	DWORD	broadcast bytes transmitted (FFFFFFFFh = not counted)
 58h	DWORD	multicast bytes transmitted (FFFFFFFFh = not counted)
 5Ch	DWORD	frames not transmitted--timeout (FFFFFFFFh = not counted)
 60h	DWORD	frames not transmitted--hardware error (FFFFFFFFh = not countd)
 64h  N BYTEs	vendor-specific info

Bitfields for MAC status bits:
Bit(s)	Description	(Table 0665)
 0-2	operational status
	000 hardware not installed
	001 hardware failed startup diagnostics
	010 hardware configuration problem
	011 hardware fault
	100 operating marginally due to soft faults
	101 reserved
	110 reserved
	111 hardware fully operational
 3	MAC bound
 4	MAC open
 5	diagnostics in progress
 6-31	reserved

Bitfields for packet filter flags:
Bit(s)	Description	(Table 0666)
 0	directed/multicast or group/functional
 1	broadcast
 2	promiscuous
 3	all source routing
 4-15	reserved, must be zero
--------I-214402-----------------------------
INT 21 U - IBM SYSTEM 36/38 WORKSTATION EMULATION - VDI.SYS - GET ???
	AX = 4402h
	BX = handle for character device "GDMS"
	CX = number of bytes to read (>= 4)
	DS:DX -> buffer (see #0667)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX = number of bytes read

Format of System 36/38 emulator returned data:
Offset	Size	Description	(Table 0667)
 00h  4 BYTEs	???
 04h	DWORD	pointer to ???
 08h  4 BYTEs	???
--------m-214402-----------------------------
INT 21 U - LASTBYTE.SYS v1.19 - IOCTL - GET ??? TABLE
	AX = 4402h
	BX = handle for device "LA$TBYTE"
	CX = 0004h
	DS:DX -> DWORD to hold address of 39-byte table of ???
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX = number of bytes read
Program: LASTBYTE.SYS is part of the shareware "The Last Byte" memory
	  management package by Key Software Products
SeeAlso: AX=4402h"HIGHUMM"
--------m-214402-----------------------------
INT 21 - HIGHUMM.SYS v1.17+ - IOCTL - GET API ADDRESS
	AX = 4402h
	BX = handle for device "KSP$UMM"
	CX = 0004h
	DS:DX -> DWORD to hold entry point (see #0668)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX = number of bytes read
Program: HIGHUMM.SYS is part of the shareware "The Last Byte" memory management
	  package by Key Software Products
SeeAlso: AX=4402h"LASTBYTE"

(Table 0668)
Call HIGHUMM.SYS entry point with:
	AH = 00h allocate UMB (same as XMS function 10h) (see INT 2F/AX=4310h)
	    DX = size in paragraphs
		 Return: BX = segment number (if successful)
		    DX = size of requested block/size of largest block
	AH = 01h deallocate UMB (same as XMS func 11h) (see INT 2F/AX=4310h)
	    DX = segment number of UMB
	AH = 02h request a bank-switched memory block
	    DX = size in paragraphs
	    Return: BX = segment number (if successful)
		    DX = size of requested block/size of largest block
	AH = 03h release a bank-switched memory block
	    DX = segment number
	AH = 04h transfer data to/from high memory
	    DS:SI -> source
	    ES:DI -> destination
	    CX = length in bytes
	    Note: enables bank-switched memory, does the copy, then disables
		bank-switched memory
	AH = 05h get a word from bank-switched memory
	    ES:DI -> word to read
	    Return: DX = word
	AH = 06h put a word to bank-switched memory
	    ES:DI -> word to write
	    DX = word
	AH = 07h put a byte to bank-switched memory
		 ES:DI -> byte to write
	    DL = byte
	AH = 08h enable bank-switched memory
	    DS:SI -> 6-byte status save area
	AH = 09h disable bank-switched memory
	    DS:SI -> 6-byte save area from enable call (AH=08h)
	AH = 0Ah assign name to UMB or high bank-switched block
	    DX = segment number
	    DS:SI -> 8-byte blank-padded name
	AH = 0Bh locate UMB block by name
	    DS:SI -> 8-byte blank-padded name
	    Return: BX = segment number (if successful)
		    DX = size of block
	AH = 0Ch locate bank-switched block by name
	    DS:SI -> 8-byte blank-padded name
	    Return: BX = segment number (if successful)
		    DX = size of block
Return: AX = status code
	    0001h successful
	    0000h failed
		BL = error code
		    80h not implemented
		    B0h insufficient memory, smaller block available
			 B1h insufficient memory, no blocks available
		    B2h invalid segment number
Note:	only functions 00h and 01h are always available; the remaining
	  functions are only enabled if the proper commandline switch is given
--------c-214402-----------------------------
INT 21 - SMARTDRV.SYS v3.x only - IOCTL - GET CACHE STATUS
	AX = 4402h
	BX = file handle for device "SMARTAAR"
	CX = number of bytes to read (min 28h)
	DS:DX -> buffer for status record (see #0669)
Return: CF clear if successful
	    AX = number of bytes actually read
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4403h"SMARTDRV",INT 2F/AX=4A10h/BX=0000h

Format of SMARTDRV status record:
Offset	Size	Description	(Table 0669)
 00h	BYTE	write-through flag (always 01h)
 01h	BYTE	writes should be buffered (always 00h)
 02h	BYTE	cache enabled if 01h
 03h	BYTE	driver type (01h extended memory, 02h expanded)
 04h	WORD	clock ticks between cache flushes (currently unused)
 06h	BYTE	cache contains locked tracks if nonzero
 07h	BYTE	flush cache on INT 19 reboot if nonzero
 08h	BYTE	cache full track writes if nonzero
 09h	BYTE	double buffering (for VDS) state (00h off, 01h on, 02h dynamic)
 0Ah	DWORD	original INT 13 vector
 0Eh	BYTE	minor version number
 0Fh	BYTE	major version number
 10h	WORD	unused
 12h	WORD	sectors read			\
 14h	WORD	sectors already in cache	 > may be scaled rather than
 16h	WORD	sectors already in track buffer /  absolute counts
 18h	BYTE	cache hit rate in percent
 19h	BYTE	track buffer hit rate in percent
 1Ah	WORD	total tracks in cache
 1Ch	WORD	number of tracks in use
 1Eh	WORD	number of locked tracks
 20h	WORD	number of dirty tracks
 22h	WORD	current cache size in 16K pages
 24h	WORD	original (maximum) cache size in 16K pages
 26h	WORD	minimum cache size in 16K pages
 28h	DWORD	pointer to byte flag to increment for locking cache contents
--------d-214402-----------------------------
INT 21 - CD-ROM device driver - IOCTL INPUT
	AX = 4402h
	BX = file handle referencing character device for CD-ROM driver
	CX = number of bytes to read
	DS:DX -> control block (see #0671)
Return: CF clear if successful
	    AX = number of bytes actually read
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	the data returned depends on the first byte of the control block; the
	  remainder of the control block is filled by the driver
SeeAlso: AX=4403h"CD-ROM",INT 2F/AX=0802h

(Table 0670)
Values for CD-ROM data being requested:
 00h	device driver header address
 01h	drive head location
 02h	reserved
 03h	error statistics
 04h	audio channel info
 05h	raw drive bytes (uninterpreted and device-specific)
 06h	device status
 07h	sector size
 08h	volume size
 09h	media change status
 0Ah	audio disk info
 0Bh	audio track info
 0Ch	audio Q-Channel info
 0Dh	audio sub-channel info
 0Eh	UPC code
 0Fh	audio status info

Format of CD-ROM control block:
Offset	Size	Description	(Table 0671)
 00h	BYTE	data being requested (see #0670)
---function 00h---
 01h	DWORD	device driver header address (see also AH=52h)
---function 01h---
 01h	BYTE	addressing mode
		00h HSG
		01h Red Book
 02h	DWORD	current location of drive's head
		logical sector number in HSG mode
		frame/second/minute/unused in Red Book mode
		(HSG sector = minute * 4500 + second * 75 + frame - 150)
---function 03h---
 01h  N BYTEs	undefined as of 5 Aug 88 specification
---function 04h---
 01h	BYTE	input channel (0-3) for output channel 0
 02h	BYTE	volume for output channel 0
 03h	BYTE	input channel (0-3) for output channel 1
 04h	BYTE	volume for output channel 1
 05h	BYTE	input channel (0-3) for output channel 2
 06h	BYTE	volume for output channel 2
 07h	BYTE	input channel (0-3) for output channel 3
 08h	BYTE	volume for output channel 3
Notes:	output channels 0 and 1 are left and right, 2 and 3 are left prime and
	  right prime; a volume of 00h is off
	the default setting is for each input channel to be assigned to the
	  same-numbered output channel at full (FFh) volume
---function 05h---
 01h	BYTE	number of bytes read
 02h 128 BYTEs	buffer for drive bytes
---function 06h---
 01h	DWORD	device parameters (see #0672)
---function 07h---
 01h	BYTE	read mode
		00h cooked
		01h raw
 02h	WORD	sector size in bytes
---function 08h---
 01h	DWORD	volume size in sectors
---function 09h---
 01h	BYTE	media change status
		00h don't know
		01h media unchanged
		FFh media has been changed
---function 0Ah---
 01h	BYTE	lowest audio track number
 02h	BYTE	highest audio track number
 03h	DWORD	start address of lead-out track (Red Book format)
--function 0Bh---
 01h	BYTE	track number (set by caller)
 02h	DWORD	starting point of track (Red Book format)
 06h	BYTE	track control info
		bits 15,14,12: track type (notice: bits not contiguous!)
			000 two audio channels, no pre-emphasis
			001 two audio channels with pre-emphasis
			010 data track
			100 four audio channels, no pre-emphasis
			101 four audio channels with pre-emphasis
			other reserved
		bit 13: digital copy permitted
---function 0Ch---
 01h	BYTE	CONTROL and ADR byte (as received from drive)
 02h	BYTE	track number
 03h	BYTE	point or index
 04h	BYTE	minute	\
 05h	BYTE	second	 > running time within track
 06h	BYTE	frame	/
 07h	BYTE	zero
 08h	BYTE	"AMIN" or "PMIN"     \
 09h	BYTE	"ASEC" or "PSEC"      > running time on disk
 0Ah	BYTE	"AFRAME" or "PFRAME" /
---function 0Dh---
 01h	DWORD	starting frame address (Red Book format)
 05h	DWORD	transfer address
 09h	DWORD	number of sectors to read
Note:	copies 96 bytes of sub-channel info per sector into buffer
---function 0Eh---
 01h	BYTE	CONTROL and ADR byte
 02h  7 BYTEs	UPC/EAN code (13 BCD digits,low-order nybble of last byte is 0)
 09h	BYTE	zero
 0Ah	BYTE	"AFRAME"
---function 0Fh---
 ??? documentation not yet available
 01h	WORD	pause status (0000h not paused, 0001h paused)
 03h	DWORD	audio play start address
 07h	DWORD	??? audio play length or end address

Bitfields for CD-ROM device parameters:
Bit(s)	Description	(Table 0672)
 0	door open
 1	door unlocked
 2	supports raw reading in addition to cooked
 3	writable
 4	can play audio/video tracks
 5	supports interleaving
 6	reserved
 7	supports prefetch requests
 8	supports audio channel control
 9	supports Red Book addressing in addition to HSG
 10	audio is playing
 11	no disk in drive
 12	supports R-W subchannels
--------m-214402-----------------------------
INT 21 - Quarterdeck - QEMM-386 v5+ - GET API ENTRY POINT
	AX = 4402h
	BX = file handle for device "QEMM386$"
	CX = 0004h
	DS:DX -> DWORD buffer for API entry point
Return: CF clear if successful
	    buffer filled (see INT 67/AH=3Fh for entry point parameters)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	Quarterdeck recently (June 1993) documented this function, but the
	  documentation incorrectly states that it is only available for
	  QEMM 6+
SeeAlso: AX=4402h"HOOKROM",INT 2F/AX=D201h/BX=5145h,INT 67/AH=3Fh
--------Q-214402-----------------------------
INT 21 U - Quarterdeck - HOOKROM.SYS - GET HOOKED VECTOR TABLE
	AX = 4402h
	BX = file handle for device "HOOKROM$"
	CX = 0004h
	DS:DX -> DWORD buffer for address of hooked vector table (see #0673)
Return: CF clear if successful
	    DS:DX buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4402h/SF=01h

Format of HOOKROM.SYS hooked vector table entry:
Offset	Size	Description	(Table 0673)
 00h  5 BYTEs	FAR jump to actual interrupt handler
		(end of table if first byte is not EAh)
 05h	BYTE	interrupt vector number
--------d-214402-----------------------------
INT 21 - Advanced SCSI Programming Interface (ASPI) - INTERFACE
	AX = 4402h
	BX = file handle for device "SCSIMGR$"
	CX = 0004h or 0005h (see notes)
	DS:DX -> buffer for result (see #0674), set to zeros before call
Return: CF clear if successful
	    AX = 0004h or 0005h (see notes)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	the variant of the call requesting five bytes is an UNDOCUMENTED
	  extension supported by Adaptec's ASPI2DOS.SYS, ASPI4DOS.SYS, and
	  ASPI7DOS.SYS; if made of a host manager which does not support the
	  variant, only four bytes will be returned.  If the variant is
	  supported, Adaptec's WINASPI.DLL assumes that the host manager is
	  an "advanced" one which operates in either real or protected mode
	  (and thus does not require a DPMI INT 31/AX=0301h call to be invoked
	  from protected mode).	 Support of the five-byte variant also appears
	  to imply that an advanced ASPI host manager uses no temporary
	  storage space except the SRB (see #0676) and the stack, and that it
	  is fully reentrant.
	if called with a standard request for four bytes, even Adaptec's
	  advanced drivers return only the requested four bytes containing the
	  ASPI entry point address
	the function address is called with the address of a SCSI Request
	  Block (see #0676) on the stack and the caller must clean up the
	  stack
SeeAlso: AX=440Ch"ASPITAPE",INT 11/AH=FFh"WD7000"

Format of ASPI IOCTL result:
Offset	Size	Description	(Table 0674)
 00h	DWORD	function address
 04h	BYTE	number of SCSI host adapters supported by host manager

(Table 0675)
Values for ASPI request number:
 00h	"HA_INQ"	host adapter inquiry
 01h	"GET_TYPE"	get device type
 02h	"EXEC_SIO"	execute SCSI I/O
 03h	"ABORT_SRB"	abort SRB
 04h	"RESET_DEV"	reset SCSI device
 05h	"SET_HAPRMS"	set host adapter parameters
 06h	get disk drive information

Format of SCSI Request Block (64 bytes):
Offset	Size	Description	(Table 0676)
 00h	BYTE	request number (see #0675)
 01h	BYTE	request status (see #0677)
 02h	BYTE	host adapter ID
 03h	BYTE	request flags (see #0678)
 04h	DWORD	reserved
---request 00h---
 08h	BYTE	(ret) number of host adapters
 09h	BYTE	(ret) target adapter ID
 0Ah 16 BYTEs	(ret) SCSI manager ID
 1Ah 16 BYTEs	(ret) host adapter ID
 2Ah 16 BYTEs	(ret) host adapter-unique parameters
---request 01h---
 08h	BYTE	target ID
 09h	BYTE	logical unit number
 0Ah	BYTE	(ret) device type (see #0681)
---request 02h---
 08h	BYTE	target ID
 09h	BYTE	logical unit number
 0Ah	DWORD	data allocation length
 0Eh	BYTE	sense allocation length
 0Fh	DWORD	data buffer pointer
 13h	DWORD	next request pointer (for linking)
 17h	BYTE	CDB length
 18h	BYTE	(ret) host adapter status (see #0676)
 19h	BYTE	(ret) target status (see #0680)
 1Ah	DWORD	post routine address
 1Eh	WORD	real mode Post DS
 20h	DWORD	SRB pointer
 24h	WORD	reserved
 26h	DWORD	SRB physical address
 2Ah 22 BYTEs	SCSIMGR$ workspace
 40h  N BYTEs	CCB, including sense data (20-24 bytes)
---request 03h---
 08h	DWORD	address of SRB to abort
---request 04h---
 08h	BYTE	target ID
 09h	BYTE	logical unit number
 0Ah 14 BYTEs	reserved
 18h	BYTE	(ret) host adapter status (see #0679)
 19h	BYTE	(ret) target status (see #0680)
 1Ah	DWORD	post routine address
 1Eh 34 BYTEs	workspace
---request 05h---
 08h 16 BYTEs	host adapter-unique parameters
---request 06h---
 08h	BYTE	target ID
 09h	BYTE	logical unit number
 0Ah	BYTE	disk drive flags (see #0682)
 0Bh	BYTE	INT 13h drive number
 0Ch	BYTE	preferred head number translation
 0Dh	BYTE	preferred sector size translation
 0Eh 10 BYTEs	reserved
SeeAlso: #0683

(Table 0677)
Values for ASPI request status:
 00h	not done yet
 01h	completed successfully
 02h	aborted by host
 04h	SCSI I/O error
 80h	invalid
 81h	no adapter
 82h	no device attached
 else	status

Bitfields for ASPI request flags:
Bit(s)	Description	(Table 0678)
 0	posting enabled
 1	linking enabled
 2	direction
 3	transfer from SCSI target to host
 4	transfer from host to SCSI target
Note:	no data is transferred if both bits 3 and 4 are set

(Table 0679)
Values for host adapter status:
 00h	no error detected
 11h	select timeout
 12h	data overrun
 13h	bus error
 14h	bus failure

(Table 0680)
Values for target status:
 00h	no status
 02h	sense data stored in SRB
 08h	target busy
 18h	reservation error

(Table 0681)
Values for device type:
 00h	disk drive
 01h	tape drive (streamer)
 02h	printer
 03h	processor
 04h	WORM drive
 05h	CD-ROM drive
 06h	scanner
 07h	optical drive
 08h	autochanger
 09h	communications device

(Table 0682)
Values for disk drive flags:
 00h	no INT 13 access
 01h	INT 13 with DOS access
 02h	INT 13 without DOS access
 03h	invalid flags

Format of CCB:
Offset	Size	Description	(Table 0683)
 00h	BYTE	command code (see #0684)
 01h	BYTE	flags
		bits 4-0: vary by function
		bits 7-5: logical unit number
 02h	BYTE	"adr_1"
 03h	BYTE	"adr_0"
 04h	BYTE	length
 05h	BYTE	control
	...
 06h/0Ah 14 BYTEs buffer for sense data (see #0685)
SeeAlso: #0676

(Table 0684)
Values for CCB command code:
 00h	test unit ready
 01h	rewind
 03h	request sense data
 05h	get block size limits
 08h	Group 0 read
 0Ah	Group 0 write
 10h	write file marks
 11h	SCSI Space (set position?)
 12h	SCSI Inquire
 15h	set mode information
 16h	reserve SCSI device
 17h	release SCSI device
 19h	erase
 1Ah	request mode information
 1Bh	load/unload media
 1Dh	request target self-check
 24h	set window parameters
 25h	get window parameters
 28h	Group 1 read
 2Ah	Group 1 write
 31h	document feeder control
 34h	get scan data status
---vendor-specific commands---
 D3h	get document feeder status
 D4h	set document feeder mode

Format of sense data:
Offset	Size	Description	(Table 0685)
 00h	BYTE	error code (bit 7 set if valid)
 01h	BYTE	segment number
 02h	BYTE	sense key
		bit 6: EOM
		bit 5: ILI
		bits 0-3: sense key (see #0686)
 03h  4 BYTEs	information bytes
 07h	BYTE	additional sense length (0Ah)
 08h  4 BYTEs	command-specific information
 0Ch	BYTE	additional sense code
 0Dh	BYTE	additional sense code qualifier
 0Eh	BYTE	field replaceable unit code
 0Fh  3 BYTEs	sense key specific bytes

(Table 0686)
Values for sense key:
 00h	no sense data
 02h	SCSI unit not ready
 03h	media error
 04h	unrecoverable hardware error
 05h	illegal parameter in CDB
 06h	target has been reset
 0Bh	target aborted command
--------m-214402-----------------------------
INT 21 U - Qualitas 386MAX v6.00+ - IOCTL INPUT - GET STATE
	AX = 4402h
	BX = file handle for device "386MAX$$"
	CX = number of bytes to read
	DS:DX -> BYTE 03h followed by 386MAX state buffer (see #0687)
Return: CF clear if successful
	    buffer at DS:DX+1 filled
	    AX = number of bytes actually copied
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	if the value given in CX is less than the size of the state record
	  (5Ah for v6.01, 66h for v7.00), only a partial state record will be
	  returned
	the state is 40h bytes for 386MAX (actually ASTEMM) v2.20 ("386MAX$$"
	  did not exist yet, use "QMMXXXX0" and then "EMMXXXX0" instead) and
	  56h bytes for v5.11.
	to invoke 386MAX API functions, push DX onto the stack, load DX with
	  the word at offset 25h in the returned state, load all other
	  registers as needed for the desired function, and execute an
	  OUT DX,AL or OUT DX,AX; DX will be set to the pushed value on return
	  if it is not otherwise modified by the API function.	For safety,
	  in case a function is not supported or 386MAX is not present, SP
	  should be saved and restored around the API call.
	Windows 3.1 Standard mode, LAN Manager, and Windows for Workgroups all
	  use the 386MAX API; LAN Manager and Windows for Workgroups reportedly
	  make some calls incorrectly
SeeAlso: AX=4403h/SF=03h"386MAX",INT 67/AH=3Fh

Format of 386MAX v6.01+ state:
Offset	Size	Description	(Table 0687)
 -1	BYTE	(call) 03h
 00h  6 BYTEs	signature "386MAX"
 06h  4 BYTEs	version string "N;NN" or "N.NN" (i.e. "6;01" for v6.01)
		(';' by default; apparently changed to a period when 386MAX
		has linked high RAM into DOS's memory chain)
 0Ah	WORD	segment of low-memory portion of 386MAX.SYS
 0Ch  2 BYTEs	???
 0Eh	WORD	segment of ??? memory block or 0000h
 10h	WORD	bit flags 1 (see #0688)
 12h	WORD	starting address of video memory in KB
 14h  2 BYTEs	???
 16h	WORD	total high DOS memory in KB
 18h  2 BYTEs	???
 1Ah	WORD	available shared memory in KB
 1Ch	WORD	KBytes extended memory used by 386MAX
 1Eh  2 BYTEs	???
 20h	WORD	total extended memory in KB
 22h	WORD	IO port to write (OUT DX,AL) to invoke 386MAX INT 15 functions
 24h	WORD	IO port to write (OUT DX,AL) to invoke 386MAX API functions
		  (see #0701)
 26h	WORD	??? (depends on DOS version)
 28h	WORD	size of ??? in paragraphs
 2Ah	DWORD	machine type (see #0696)
 2Eh	DWORD	-> first DOS memory control block
 32h	WORD	system configuration flags (see #0689)
 34h	WORD	debugging flags 1 (see #0690)
 36h	WORD	debugging flags 2 (see #0691)
 38h  2 BYTEs	???
 3Ah	WORD	segment of first MCB in high memory chain
 3Ch	WORD	feature flags 1 (see #0693)
 3Eh	WORD	feature flags 2 (see #0694)
 40h	WORD	feature flags 3 (see #0695)
 42h	WORD	segment of first 386MAX control block??? (see #0697)
 44h	WORD	amount of memory to report available on INT 15/AH=88h
 46h  4 BYTEs	???
 4Ah	WORD	number of K at start of address space swapped with fast
		  extended memory (SWAP= parameter)
 4Ch  2 BYTEs	???
 4Eh	WORD	segment address of ???
 50h	WORD	debugging flags 3 (see #0692)
 52h	DWORD	old INT 21h
 56h	DWORD	pointer to 386MAX's EMS (INT 67h) handler
---386MAX v7.00---
 5Ah	DWORD	KB of extended memory managed by 386MAX
 5Eh	DWORD	bytes of extended memory (EXT= parameter)
 62h  4 BYTEs	???

Bitfields for 386MAX bit flags 1:
Bit(s)	Description	(Table 0688)
 1	???
 2	allow A20 to be enabled/disabled???
 3	??? (cleared by calling INT 67 functions or starting MSWindows)
 4	high RAM present???
 5	386MAX in AUTO mode
 6	386MAX enabled
 7	386MAX is providing EMS services
 8	??? (affects API function 08h)
 9	A20 gate closed (A20 disabled) (see INT 15/AX=2402h)
 10	Weitek support enabled
 11	???
 12	ROMs not shadowed???
 13	QPMS has been used
 14	???
 15	???

Bitfields for 386MAX system configuration flags:
Bit(s)	Description	(Table 0689)
 1	ROM compressed???
 3	???
 5	386MAX loaded into high memory
 6	Microchannel bus
 7	Weitek math coprocessor detected
 9	??? (also generates INT 01 on ??? and INT 03 on ???)
 11	PC/XT (thus only single 8259 interrupt controller present, DMA only
		in 1st megabyte, etc)
 13	LMLTOP= specified
 14	enable A20 control???
 15	???

Bitfields for 386MAX debugging flags 1:
Bit(s)	Description	(Table 0690)
 0	DEBUG=LED
 1	DEBUG=X67
 2	DEBUG=INV
 3	DEBUG=EMSPTED
 4	DEBUG=JMP
 5	DEBUG=CALL
 6	DEBUG=HLT
 7	DEBUG=PMR
 8	DEBUG=CR3
 9	DEBUG=CAPS or DEBUG=INT
 10	DEBUG=RC
 11	DEBUG=ROM
 12	DEBUG=XM
 13	DEBUG=SOR
 14	DEBUG=XR
 15	DEBUG=EMSERR (generate INT 01 on returning error from EMS call)

Bitfields for 386MAX debugging flags 2:
Bit(s)	Description	(Table 0691)
 0	DEBUG=ROMSWAP
 1	DEBUG=UNSHADOWROM
 2	DEBUG=COMPROM
 3	DEBUG=DPMIPHYS
 4	DEBUG=ALLROM
 5	DEBUG=VMS
 6	DEBUG=XMS (generate INT 01 on XMS calls)
 7	DEBUG=I06
 8	DEBUG=VCPI
 9	DEBUG=XDMA
 10	DEBUG=X09
 13	DEBUG=I67 (generate INT 01 on every INT 67 call)
 14	DEBUG=EVM (generate INT 01 on entering V86 mode)
 15	DEBUG=EMSSAVE or DEBUG=VDS

Bitfields for 386MAX debugging flags 3:
Bit(s)	Description	(Table 0692)
 10	DEBUG=EPM
 12	DEBUG=ABIOS
 13	DEBUG=XMSPTED
 14	DEBUG=TIME
 15	DEBUG=SCRUB

Bitfields for 386MAX feature flags 1:
Bit(s)	Description	(Table 0693)
 1	Weitek present
 2	no DPMI services
 3	NODMA
 4	TERSE
 5	NOROM
 6	NOPARITY
 8	NOFLEX (IGNOREFLEXFRAME)
 11	don't create UMBs
 12	don't backfill below video memory (NOLOW)
 13	FRAME= specified
 14	EXT= specified
 15	NOEMS, allow prior expanded memory manager to provide EMS

Bitfields for 386MAX feature flags 2:
Bit(s)	Description	(Table 0694)
 0	UNSHIFT specified (FORCEA20 disabled)
 1	NOXRAM
 2	NOSCSI specified
 3	SCREEN specified
 4	enabled EISADMA
 5	slow DMA
 6	RESETKEYB specified
 7	???
 9	TOP384
 10	???
 11	NOWARMBOOT
 12	USE= specified
 13	ROM= specified

Bitfields for 386MAX feature flags 3:
Bit(s)	Description	(Table 0695)
 0	Windows3 support enabled
 1	SHADOWROM
 2	don't compress ROM (NOCOMPROM)
 3	??? (related to PRGREG=)
 4	??? (related to PRGREG=)
 5	SHADOWRAM
 6	DOS4 specified
 7	NOLOADHIGH
 8	NOPULSE
 11	FORCEA20
 12	DMA buffer enabled
 13	NOSCRUB
 15	NOFRAME

Bitfields for 386MAX machine type:
Bit(s)	Description	(Table 0696)
 12	Amstrad
 13	Epson
 14	Zenith Data Systems
 15	"ASEM"
 16	NEC
 17	"HPRS" model codes 69h and 6Ah
 18	Dell
 19	"CA"
 20	ITT (Xtra Business Systems/Alcatel)
 21	Toshiba 5100
 22	Olivetti
 23	Quadram Quad386 (BIOS model FEh, submodel A6h)
 24	Tandy???
 25	AST 386
 26	INBOARD, ??? version
 27	INBOARD, ??? version
 28	INBOARD, ??? version
 29	"HPRS"
 30	Compaq 386
 31	JET386

Format of 386MAX control block:
Offset	Size	Description	(Table 0697)
 00h	WORD	segment of next block (FFFFh if last)
 02h	WORD	segment of previous block (FFFFh if first)
 04h 12 BYTEs	filename
 10h	WORD	resident size in paragraphs
 12h	WORD	environment size???
 14h	WORD	real prsent environment size + 1 (0000h if ENVSAVE used)
 16h  2 BYTEs	???
 18h	DWORD	initial size or SIZE=n in 386LOAD commandline
 1Ch	DWORD	SIZE=-1 ???
 20h	DWORD	SIZE= ???
 24h	BYTE	PRGREG= if specified, else FFh
 25h	BYTE	ENVREG= if specified, else FFh
 26h	BYTE	FlexFrame (00h not present, 01h present)
 27h  3 BYTEs	???
 2Ah	BYTE	GROUP= or 00h if not present
 2Bh	BYTE	???
 2Ch	WORD	PSP

Format of 386MAX high memory info record:
Offset	Size	Description	(Table 0698)
 00h	WORD	segment address of memory region
 02h	WORD	size of memory region in paragraphs
 04h	BYTE	type or flags???
		00h if locked out
		02h if EMS page frame
		04h if high RAM
		42h if ROM
 05h	BYTE	???

Format of 386MAX ROM shadowing record:
Offset	Size	Description	(Table 0699)
 00h	WORD	logical start segment of ROM??? (may be used by BlueMAX when it
		  squeezes together the ROMs to make room)
 02h	WORD	physical start segment of ROM
 04h  2 BYTEs	???
 06h	WORD	size of shadowed ROM in paragraphs
 08h  2 BYTEs	???
 0Ah	WORD	flags
		bit 15: shadowing enabled for this ROM???
		bit 14: ???
		bit 13: ???
		bit 12: ???
		bit 10: ???

(Table 0700)
Values for 386MAX memory type:
 00h	unused by EMS
 01h	DOS
 04h	page frame overlapping ROM???
 80h	high memory
 84h	page frame???
 87h	video ROM???
Note:	the type may be 00h (unused) if the 16K page is split among different
	  uses (such as ROM and high RAM)

(Table 0701)
Call 386MAX API (via OUT DX,AL) with:
	STACK: WORD value for DX
	AH = 00h unused
		Return: AH = 84h (unsupported function)
	AH = 01h get high memory information
		ES:DI -> buffer for array of high memory info records
			(see #0698)
		Return: CX = number of records placed in buffer
	AH = 02h get shadowed ROM info
		ES:DI -> buffer for array of ROM shadowing records (see #0699)
		Return: CX = number of records placed in buffer
	AH = 03h get 386MAX state
		ES:DI -> 90-byte buffer for state (see #0687)
		Return: AH = 00h (successful)
			buffer filled
	AH = 04h get memory types???
		ES:DI -> buffer for memory type info (array of bytes, one per
			16K page) (see #0700)
		Return:	CX = number of bytes placed in buffer
	AH = 05h get page table entries
		AL = A20 control (00h enable A20 first, 01h leave unchanged)
		CX = buffer size in bytes (0000h = enough for all memory from
			given start to end of memory managed by 386MAX)
		SI = first K to report (rounded down to 4K page)
		ES:DI -> buffer for returned page table entries
		Return: CX = number of bytes returned (four per 4K page)
			ES:DI buffer filled
	AH = 06h get memory speed info
		ES:DI -> buffer for memory speed records (see #0702)
		Return: AH = 00h (successful)
			CX = number of bytes placed in buffer
		Note:	this function can take over a second to execute
	AH = 07h map/unmap multiple handle pages
		DX = EMS handle (on stack)
		STACK: DWORD -> EMS mapping record
		Return:	AH = status (00h,80h,83h,8Ah,8Bh)
		Format of EMS mapping record:
		Offset	Size	Description
		 00h	WORD	function
				0000h use physical page numbers
				0001h use segment addresses
		 02h	WORD	EMS handle
		 04h	WORD	number of mapping entries following
		 06h 2N WORDs	logical page number and physical page/segment
				logical page FFFFh means unmap physical page
		SeeAlso: INT 67/AH=50h
	AH = 08h "EMM2_GOREAL" check whether possible to disable 386MAX
		AL = ??? (00h or nonzero)
		Return: AH = status (00h OK, A4h not possible at this time)
		Note:	if AL=00h, this function always returns success
	AH = 09h toggle Bit Flags 1 flags
		BX = bitmask of bit flags 1's flags to toggle (see #0688)
		Return: AH = 00h (successful)
		Note:	enables A20 first
	AH = 0Ah toggle Debugging Flags 1 flags
		BX = bitmask of Debugging Flags 1's bits to toggle (see #0690)
		Return: AH = 00h (successful)
		Notes:	enables A20 first
			does ??? if bit 3 on after specified bits are toggled
	AH = 0Bh toggle Debugging Flags 2 flags
		BX = bitmask of Debugging Flags 2's bits to toggle (see #0691)
		Return: AH = 00h (successful)
		Note:	enables A20 first
	AH = 0Ch toggle feature flags 3
		BX = bitmask of feature flags 3's bits to toggle (see #0695)
		Return: AH = 00h (successful)
		Note:	enables A20 first
	AH = 0Dh specify 386MAX high-memory location
		BX = segment address of high-memory real-mode portion of 386MAX
		CX = current segment of real-mode stub???
		Return: AH = status (00h successful)
			???
	AH = 0Eh CRT controller register virtualization
		AL = subfunction
		    00h allow access to CRTC I/O ports 03B4h/03B5h, 03D4h/03D5h
		    01h trap accesses to CRTC I/O ports
	AH = 0Fh reboot system
		Return: never
	AH = 10h unused
		Return: AH = 84h (unsupported function)
	AH = 11h get high memory information
		ES:DI -> 96-byte buffer for high memory info
		Return: AH = 00h (successful)
			ES:DI buffer filled
		Notes:	each byte in buffer contains bit flags for a 4K page in
			  the A000h-FFFFh region
				bit 0: page is writeable
				bit 1: physical address same as linear address
				bit 2: EMS page frame
				bit 6: page is part of the QPMS window
			this function can take over a second to execute,
			  because it does a 128K read for each page in an
			  attempt to flush any RAM cache the system may have
	AH = 12h shadow RAM mapping
		AL = subfunction
		    00h unshadow ROMs (except page FFh if NOWARMBOOT set)
		    01h map shadow RAM into ROM regions???
		Return: AH = 00h (successful) if AL=00h or 01h
			AH = 8Fh otherwise
	AH = 13h shadow RAM page protection
		AL = subfunction
		    00h set all shadowed ROM 4K pages to read-only
		    01h set all shadowed ROM 4K pages to read-write
		Return: AH = 00h (successful) if AL=00h or 01h
			AH = 8Fh otherwise
	AH = 14h get Programmable Option Select info???
		ES:DI -> 54-byte buffer for POS data???
		Return: AH = 00h if successful
			AH = A4h on error
		Note:	the buffer consists of nine 6-byte fields; the first
			  eight for slots 1-8, the last for the system board
	AH = 15h ???
		???
		Return: ???
	AH = 16h get 386MAX memory usage screen
		ES:DI -> buffer for memory info display
		CX = size of buffer in bytes
		Return:	ES:DI buffer filled with '$'-terminated string (if
				large enough to hold entire usage screen)
		Note:	the screen is 0303h bytes in v7.00
	AH = 17h Windows 3 startup/termination
		AL = subfunction
		    00h Windows3 initializing
			DX (on stack) = Windows startup flags
			DI = Windows version number (major in upper byte)
			ES:BX = 0000h:0000h
			DS:SI = 0000h:0000h
			Return: CX = 0000h if OK for Windows to load
				   <> 0 if Windows should not load
				ES:BX -> startup info structure
				DS:SI -> Virtual86 mode enable/disable callback
		    01h Windows3 terminating
			ES:BX -> ???
			DX (on stack) = Windows exit flags
			Return: ???
	AH = 18h QPMS (Qualitas Protected Memory Services)
		AL = subfunction
		    00h get QPMS configuration
			Return: BX = starting segment of QPMS memory window
				CX = number of 4K pages reserved for QPMS???
				DX = number of 4K pages in QPMS window???
		    01h map QPMS memory page???
			BX = 4K page number within memory reserved for QPMS???
			CL = 4K page number within QPMS memory window???
		    02h mark all QPMS memory read-only
		    03h mark all QPMS memory read-write
		Return: AH = status (00h,8Ah,8Bh,8Fh)
	AH = 19h get linear address for physical address
		EDX = physical address (low word on stack)
		Return: AH = status
			    00h successful
				EDX = linear address at which physical address
					may be accessed
			    8Bh physical address currently not addressable
		Note:	enables A20 first
	AH = 1Ah set page table entry
		EDX = new page table entry (low word on stack)
		ESI = linear address of page to map (bits 0-11 clear)
		Return: AH = status (00h,8Bh)
		Note:	enables A20 first
	AH = 1Bh get ???
		Return: AH = status
			BX = ???
			CX = number of ???
			EDX = physical address of ???
	AH = 1Ch get original interrupt vector
		AL = interrupt vector (00h-7Fh)
		Return: AH = 00h (successful)
			EDX = original vector before 386MAX loaded (segment in
				high word, offset in low word)
		Note:	no range checking is performed; requests for INTs 80h-
			  FFh will return random values
	AH = 1Dh display string???
		SI = ???
		Return: AH = 00h (successful)
			???
		Note:	this function appears to be broken in v7.00
	AH = 1Eh get memory info
		ES:DI -> memory info (see #0703)
		Return: ???
	AH = 1Fh get DPMI host information
		Return: AX = 0000h if successful
			BX = DPMI flags (see #1819 at INT 31/AX=0400h)
			CL = CPU type (02h = 80286, 03h = 80386, etc.)
			DX = DPMI ver supported (DH=major, DL=2-digit minor)
			SI = ???
			ES???:DI -> ???
		Note:	NOP if NODPMI switch specified
	AH = 20h (v7.00) get ???
	    AL = index of ???
	    Return: EDX = ??? for specified ???
	AH = 21h (v7.00) STACKS support
	    AL = 00h get STACKS parameters
		Return: BX = ??? (0060h for v7.00)
			CX = number of stacks for hardware interrupts
			DX = size of each stack in bytes
			SI = ??? (low and high bytes are separate values)
			DI = ??? (low and high bytes are separate values)
			    low byte = logical page number set by subfn 02h
			ES = ???
	    AL = 01h set ??? "EMM2_DSTKS"
		EBX = ???
		ECX = ???
	    AL = 02h set ???
		BL = logical page number for ??? (00h-03h)
		Return: AH = status (00h,8Ah)
	AH = 22h (v7.00) call ??? for every load module
	    AL = which function to call
		00h call ???
		else call ????
	    Return: AH = 00h
	    Note: if AL=00h, calls the protected-mode function pointed at by
		the DWORD at offset 22h from the start of each module installed
		by a LOAD= directive; if AL<>00h, it calls the function
		pointed at by the DWORD at offset 28h of the load module
	AH = 23h (v7.00) ???
	    AL = 00h set ???
		BL = ???
		Return:	AH = 00h or unchanged (depending on ???)
	    AL = 01h set ???
		BL = ???
		BH = ???
		CX = ???
		DX = ??? (on top of stack)
		Return: AH = status (00h if successful, 8Fh once table full)
		Note:	this call adds one entry to an internal table on each
			  call, until the table is full
	    AL = 02h get ???
		CX = size of buffer
		ES:DI -> buffer for ??? (60 bytes total data)
		Return: CX = number of bytes actually returned
		Note:	returns the array storing the values set with AX=2301h
		Format of one entry in array:
		Offset	Size	Description
		 00h	BYTE	??? (BL from subfn 01h)
		 01h	WORD	??? (CX from subfn 01h)
		 03h	BYTE	??? (BH from subfn 01h)
		 04h	WORD	??? (DX from subfn 01h)
	    AL = 03h set ??? name/path
		ES:DI -> buffer containing ASCIZ ???
	    AL = 04h get ???
		ES:DI -> buffer for ASCIZ ???
	    Note: the ASCIZ string for subfunctions 03h and 04h does not appear
		to be used by 386MAX, and may serve merely for communication
		between two other Qualitas programs
	AH = 24h (v7.00) high memory control
	    AL = 00h get high memory state
		Return: BX = current state
			    00h high memory removed from DOS memory chain
			    01h high memory included in DOS memory chain
	    AL = 01h set high memory state
		BX = new state
		    00h high memory removed from DOS memory chain
		    01h high memory included in DOS memory chain
		    else
			Return: ??? (error, but return varies according to ???)
	AH = 25h (v7.00) remove high RAM from DOS memory chain
	AH = 26h (v7.00) ???
	    BX = ???
	    CX = ???
	    SI = ???
	    DI = ???
	    Return: AH = status
		    BX = ???
		    CX = ???
	AH = 27h (v7.00) ???
	    AL = 00h get ???
		Return: BX = number of paragraphs for ???
	    AL = 01h ???
		BX = ???
		ES??? = ???
	    AL = 02h ???
		???
	    AL = 03h ???
		CX = ???
		DX = ???
		ES??? = ???
		Return: ???
	AH = 28h (v7.00) get ???
		Return: AH = status (00h,8Fh) (see #2253 at INT 67/AH=40h)
			if AH=00h,
			    CX = ???
			    DX = ???
	AH = 29h (v7.00) get ???
		Return: AX = ???
	AH = 40h-5Dh EMS services (see INT 67/AH=40h etc)
	AH = DEh VCPI services (see INT 67/AX=DE00h etc)
Return: AH = status (as for EMS INT 67 calls)
	    00h successful
	    80h internal error
	    81h hardware malfunction
	    83h invalid handle
	    84h	undefined function
	    8Ah invalid logical page nuber
	    8Bh illegal physical page number
	    8Fh undefined subfunction
	    A4h access denied
		 etc.
	STACK popped (value placed in DX if no specific return value for DX)

Format of 386MAX memory speed record:
Offset	Size	Description	(Table 0702)
 00h	DWORD	page table entry for 4K page
 04h	WORD	number of microticks (840ns units) required for REP LODSD of
		  entire 4K page

Format of 386MAX memory info [array]:
Offset	Size	Description	(Table 0703)
 00h	DWORD	linear start address
 04h	DWORD	size in bytes
 08h	WORD	XMS handle (if next byte = 04h)
		??? (if next byte = 05h)
		??? (if next byte = 06h)
		??? (if next byte = 13h)
		??? (if next byte = 14h)
		??? (if next byte = 15h)
		??? (if next byte = 23h)
		??? (if next byte = 24h)
		??? (if next byte = 26h)
		else unused
 0Ah	BYTE	type
		00h = ???, 01h = VDISK,
		02h = INT 15h extended memory, 03h = ??? extended,
		04h = XMS handle's memory, 05h = ???, 06h = ???, 07h = ???,
		08h = ???, 09h = ???, 0Ah = ???, 0Bh = ???,
		11h = ???, 12h = ???, 14h = ???, 15h = ???,
		19h = ???, 1Ah = ???, 1Bh = ???,
		1Ch = ???, 1Dh = ???, 1Eh = ???, 1Fh = ???,
		20h = ???, 21h = ???, 23h = ???, 24h = ???,
		26h = ???
 0Bh	BYTE	??? (00h for types 00h-03h, 07h-0Bh, 19h-21h;
		     80h for types 04h/13h-15h/23h-26h;
			??? for type 05h)
--------V-214402-----------------------------
INT 21 - PGS1600.DEV - IOCTL - GET CONFIGURATION INFO
	AX = 4402h
	BX = file handle for device "PGS1600$"
	CX = 0018h (size of buffer)
	DS:DX -> configuration buffer (see #0704)
Return: CF clear if successful
	    buffer filled
	    AX = number of bytes actually copied
	CF set on error
		 AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: PGS1600.DEV is a device driver for the Cornerstone Technology PG1600
	  display adapter, which provides a 1600x1200 monochrome display as
	  well as one of two emulations, MDA or CGA.
SeeAlso: AX=4403h"PGS1600"

Format of PGS1600.DEV configuration information:
Offset	Size	Description	(Table 0704)
 00h	WORD	version (high byte = major, low byte = minor)
 02h	WORD	board initialisation mode
 04h	WORD	board I/O address
		03D0h CGA emulation
		03B0h MDA emulation
		0390h no emulation
		0350h no emulation, alternate
 06h	WORD	emulation buffer segment
		B800h	CGA emulation
		B000h	MDA emulation
		0000h	no emulation
 08h	WORD	PG1600 graphics buffer segment
 0Ah	WORD	number of bytes between consecutive graphic rows
 0Ch	WORD	horizontal pixel size
 0Eh	WORD	vertical pixel size
 10h	WORD	horizontal dots per inch
 12h	WORD	vertical dots per inch
 14h	WORD	graphics buffer bits per pixel
 16h	WORD	monitor bits per pixel
--------N-214402-----------------------------
INT 21 - PC/TCP IPCUST.SYS - RESET CONFIGURATION DATA READ POINTER
	AX = 4402h
	BX = file handle referencing device "$IPCUST"
	CX, DS:DX ignored
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	there are a total of 378h bytes of configuration data for IPCUST.SYS
	  version 2.05.	 If less than the entire data is read or written,
	  the next read/write continues where the previous one ended; this
	  call and AX=4403h both reset the location at which the next
	  operation starts to zero
	v2.1+ uses a new configuration method, but allows the installation
	  of IPCUST.SYS for backward compatibility with other software which
	  must read the PC/TCP configuration
SeeAlso: AH=3Fh"IPCUST",AH=40h"IPCUST",AX=4403h"IPCUST"
--------N-214402-----------------------------
INT 21 - WORKGRP.SYS - GET API ENTRY POINT
	AX = 4402h
	BX = file handle for device "NET$HLP$"
	CX = 0008h
	DS:DX -> buffer for entry point record (see #0705)
Return: CF clear if successful
	    AX = number of bytes actually read
	CF set on error
	    AX = error code
Program: WORKGRP.SYS is the portion of Microsoft's Workgroup Connection which
	  permits communication with PCs running Windows for Workgroups or
	  LAN Manager
SeeAlso: AH=3Fh"WORKGRP.SYS"

Format of WORKGRP.SYS entry point record:
Offset	Size	Description	(Table 0705)
 00h	WORD	3633h  \ signature???
 02h	WORD	EF6Fh  /
 04h	DWORD	address of entry point (see #0706)
Note:	first four bytes of buffer must be 6Fh E9h 33h 36h on entry when using
	  IOCTL rather than READ to get the entry point record

(Table 0706)
Call WORKGRP entry point with:
	STACK:	WORD	function number (0000h-0009h)
Return: STACK unchanged
SeeAlso: #0707,#0708,#0709,#0710,#0711,#0712,#0713,#0714

(Table 0707)
Call WORKGRP function 00h with:
	STACK:	WORD	0000h (function "get ???")
Return: DX:AX -> data table

(Table 0708)
Call WORKGRP function 01h with:
	STACK:	WORD	0001h (function "hook ???")
Return: STACK:	DWORD	pointer to ???
		WORD	0001h (function number)

(Table 0709)
Call WORKGRP function 02h with:
	STACK:	WORD	0002h (function "unhook ???")
	???
Return: ???

(Table 0710)
Call WORKGRP function 03h with:
	STACK:	WORD	0003h (function "reenable printer port")
		WORD	LPT port number
Return: ???

(Table 0711)
Call WORKGRP function 04h with:
	STACK:	WORD	0004h (function "disable printer port")
		WORD	LPT port number
Return: ???

(Table 0712)
Call WORKGRP function 05h with:
	STACK:	WORD	0005h (function "???")
		???
Return: ???

(Table 0713)
Call WORKGRP function 06h with:
	STACK:	WORD	0006h (function "???")
Return: STACK unchanged
	AX = 0000h
	DX = 0000h

(Table 0714)
Call WORKGRP functions 07h-09h with:
	STACK:	WORD	0007h-0009h (NOP functions)
Return: STACK unchanged
	AX = 0001h
	DX = 0000h
--------N-214402-----------------------------
INT 21 - 10NET v5.0 - 10BEUI.DOS - API
	AX = 4402h
	BX = file handle referencing device "10BEUI$"
	DS:DX -> parameter record (see #0715)
	CX ignored
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4402h"10MEMMGR",INT 6F/AH=00h"10NET"

Format of 10NET 10BEUI.DOS parameter record:
Offset	Size	Description	(Table 0715)
 00h	WORD	000Ah (function number???)
 02h	WORD	???
 04h	DWORD	pointer to buffer for ???
 08h  4 BYTEs	???
 0Ch	WORD	transfer size
--------N-214402-----------------------------
INT 21 - 10NET v5.0 - 10MEMMGR.SYS - API
	AX = 4402h
	BX = file handle referencing device "MEMMGR0$"
	DS:DX -> 6-byte buffer for interface info (see #0716)
	CX ignored
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4402h"10BEUI",INT 6F/AH=00h"10NET"

Format of 10NET 10MEMMGR.SYS interface info:
Offset	Size	Description	(Table 0716)
 00h	DWORD	address of entry point (see #0717)
 04h	WORD	version (0500h for v5.00)

(Table 0717)
Call 10NET 10MEMMGR.SYS entry point with:
	AL = 01h ???
		 BX = ???
	    Return: CF clear if successful
		    CF set on error
			AX = error code
	AL = 02h ???
	    ???
	AL = 03h ???
	    ???
	AL = 04h set/restore memory allocation strategy
	    BX = subfunction
		0000h set strategy
		0001h restore strategy
	    Return: CF clear if successful
		    CF set on error (if function disabled)
		    various registers destroyed
	AL = other
	    Return: CF set
		    AX = 0000h
		    BL = 01h
--------V-214402-----------------------------
INT 21 - Compaq AG1024.SYS - RGDI - GET DRIVER LOCATION
	AX = 4402h
	BX = file handle for device "$$$$RGDI"
	CX = 0006h (size of returned data)
	DS:DX -> location record (see #0718)
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: AG1024.SYS is a device driver for the Advanced Graphics 1024 adapter
SeeAlso: AX=4403h"RGDI"

Format of Compaq AG1024.SYS location record:
Offset	Size	Description	(Table 0718)
 00h	WORD	signature 55AAh
 02h	WORD	segment of ???
 04h	WORD	segment of device driver's code
--------N-214402-----------------------------
INT 21 - FTPSOFT.DOS v3.1 - GET ???
	AX = 4402h
	BX = file handle for device "FTPSOFT$"
	CX = size of buffer
	DS:DX -> buffer for data (see #0719)
Return: CF clear if successful
	    buffer filled
	CF set on error
		 AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: FTPSOFT.DOS is a device driver for Protocol Manager support from
	   FTP Software, Inc.
SeeAlso: AH=3Fh"PC/TCP",AX=4402h"NDIS"

Format of FTPSOFT.DOS data:
Offset	Size	Description	(Table 0719)
 00h	WORD	(call) BA98h (if different, no data returned)
 02h	DWORD	-> NDIS common characteristics table
		  (see #0658 at AX=4402h"NDIS")
 06h	DWORD	(call) -> new dispatch table (see #0660 at AX=4402h"NDIS")
 0Ah	DWORD	-> 28-byte buffer for ??? data
 0Eh	DWORD	???
 12h	DWORD	-> FAR function to reset dispatch jump table to defaults
 16h	BYTE	???
Note:	the addresses in the new dispatch table are copied into an internal
	  jump table which may be reset by calling the function pointed at by
	  offset 12h
--------n-214402-----------------------------
INT 21 U - PenDOS PENDEV.SYS - GET ENTRY POINTS
	AX = 4402h
	BX = file handle for device "$$PENDOS" or "$$PD_REG"
	CX = size of buffer (4 for $$PENDOS and a 4,8,12, or 16 for $$PD_REG)
	DS:DX -> buffer for entry point record (see #0720)
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: A limited version of PenDOS by Communication Intelligence Corporation,
	  which provides pen capability to keyboard-based programs, is bundled
	  with IBM DOS 6.1
SeeAlso: AX=4403h"PENDEV.SYS"

Format of PENDEV.SYS entry point record:
Offset	Size	Description	(Table 0720)
 00h	DWORD	-> array of jumps
 04h	WORD	offset of function to retrieve entry point (see #0721)
 06h  2 BYTEs	signature "Pe"
 08h	WORD	offset of function to set entry point (see #0722)
 0Ah  2 BYTEs	signature "nD"
 0Ch	WORD	offset of function to clear entry point (see #0723)
 0Eh	WORD	signature "OS"

(Table 0721)
Call PENDEV.SYS function to retrieve entry point with:
	AX = index of entry point (0-9)
Return: CF clear if successful
	    DX:AX -> desired entry point
	CF set on error (AX out of range)

(Table 0722)
Call PENDEV.SYS function to set entry point with:
	AX = index of entry point (0-9)
	DX:SI -> new handler
Return: CF clear if successful
	CF set on error (AX out of range)

(Table 0723)
Call PENDEV.SYS function to clear entry point with:
	AX = index of entry point (0-9)
Return: CF clear if successful
	CF set on error (AX out of range)
Note:	resets the jump at the specified entry point to its default target,
	  which simply returns
--------N-214402-----------------------------
INT 21 U - LAN Manager - TCPDRV.DOS - API
	AX = 4402h
	BX = file handle referencing device "TCPDRV$"
	CX = 0019h
	DS:DX -> buffer containing request block (see #0724)
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: TCPDRV.DOS is the low-level device driver supporting LAN Manager's
	  TCP/IP protocol stack

Format of TCPDRV.DOS request block:
Offset	Size	Description	(Table 0724)
 00h	BYTE	(call) function number
		00h initialize ???
		06h get ???
		07h get ???
 01h	BYTE	(call) 00h
		(ret) error code if error, unchanged if successful
 02h	WORD	signature 4354h ('CT')
---function 00h---
 04h	DWORD	(call) pointer to ??? FAR function
		function is called with ES:BX -> device driver request used to
		  invoke this function
 08h  4 BYTEs	???
 0Ch	DWORD	(call) pointer to ??? record, WORD at offset 22h is read
 10h	DWORD	(ret) -> ??? buffer if 0000h:0000h on call
---function 06h---
 04h  4 BYTEs	???
 08h	DWORD	(ret) pointer to ???
---function 07h---
 04h	DWORD	(ret) pointer to ??? record
--------y-214402-----------------------------
INT 21 U - PC Tools 9 CPRLOW.EXE - GET CODE AND DATA ADDRESSES
	AX = 4402h
	BX = file handle referencing device "RECLOWLD"
	DS:DX -> buffer for address list (see #0725)
	CX ignored
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)

Format of CPRLOW address list:
Offset	Size	Description	(Table 0725)
 00h	WORD	segment of CPRLOW code
 02h	WORD	offset in code segment of ??? entry point
		(switches into protected mode)
 04h	WORD	offset in code segment of jump array (see #0726)
 06h	WORD	segment of copy of interrupt vector table at CPRLOW load time
Note:	neither the entry point nor the jump array is valid until after a
	  CPR /LOAD, because CPR.EXE installs the code into CPRLOW at runtime.

Format of CPRLOW jump array:
Offset	Size	Description	(Table 0726)
 00h  3 BYTEs	initialize CPRLOW interrupt hooks
 03h  3 BYTEs	reset timers and enable CPR (hotkey enable)
 06h  3 BYTEs	disable CPR (hotkey disable)
 09h  3 BYTEs	clear ??? flag, hotkey disable, and ???
 0Ch  3 BYTEs	initialize delay loop counter (destroys AX,BX,CX,DX)
 0Fh  3 BYTEs	disable CPR completely (commandline /DISABLE)
 12h  3 BYTEs	enable ??? if CPR enabled by both cmdline and hotkey
 15h  3 BYTEs	enable CPR (commandline /ENABLE)
--------s-214402-----------------------------
INT 21 U - Creative Technology CTMMSYS.SYS v1.00.01 - API
	AX = 4402h
	BX = file handle for device "CTMMSYS$"
	CX = 0004h (size of data)
	DS:DX -> buffer for entry point (see #0727)
Return: CF clear if successful
	    buffer updated
	CF set on error
		 AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: CTMMSYS.SYS is the Creative DOS Multimedia Architecture Integration
	  driver
SeeAlso: AX=4402h"CTSB2",INT 80/BX=0000h"SBFM"

Format of CTMMSYS.SYS entry point record:
Offset	Size	Description	(Table 0727)
 00h	DWORD	(call) signature 4D6D7443h (ASCII "CtmM")
		(ret) pointer to CTMMSYS entry point (see #0728)
SeeAlso: #0729

(Table 0728)
Call CTMMSYS.SYS entry point with:
	AX = ???
	STACK:	WORD	???
		WORD	???
		WORD	??? (0001h,0002h,0005h,0006h)
		WORD	???
		DWORD	-> ???
		WORD	???
		WORD	???
Return: DX:AX = ??? or error code
		0000h:000Bh invalid value for ???
		0000h:000Fh API call already in progress
SeeAlso: #0727
--------s-214402-----------------------------
INT 21 U - Creative Technology CTSB2.SYS v1.01.01 - API
	AX = 4402h
	BX = file handle for device "CTSOUND0"
	CX = 0004h (size of data)
	DS:DX -> buffer for entry point (see #0729)
Return: CF clear if successful
	    buffer updated
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: CTMMSYS.SYS is the Creative DOS Multimedia Architecture Integration
	  driver
SeeAlso: AX=4402h"CTMMSYS",INT 80/BX=0000h"SBFM"

Format of CTSB2.SYS entry point record:
Offset	Size	Description	(Table 0729)
 00h	DWORD	(call) signature 4D6D7443h (ASCII "CtmM")
		(ret) pointer to CTSB2 entry point (see #0730)
SeeAlso: #0727

(Table 0730)
Call CTSB2.SYS entry point with:
	AX = ???
	STACK:	DWORD	-> ???
		WORD	function number
			(0100h,0200h,0300h,0400h,0500h,0600h,0701h)
		DWORD	-> ???
		WORD	???
		WORD	???
Return: DX:AX = ??? or error code
		0000h:0004h invalid subfunction???
		0000h:000Bh invalid value for ???
		0000h:000Fh API call already in progress
SeeAlso: #0729
--------m-214402-----------------------------
INT 21 U - Novell DOS 7 EMM386.EXE - GET STATE RECORD???
	AX = 4402h
	BX = file handle for device "EMMXXXX0"
	CX = 003Eh (size of state record)
	DS:DX -> buffer for state record (see #0731)
Return: CF clear if successful
	    buffer filled (see #2208 at INT 67/AH=3Fh)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)

Format of Novell DOS 7 EMM386.EXE state record:
Offset	Size	Description	(Table 0731)
 00h	WORD	signature EDC0h
 02h 60 BYTEs	???
--------m-214402SF00-------------------------
INT 21 U - Memory Managers - GET API ENTRY POINT
	AX = 4402h subfn 00h
	BX = file handle for device "EMMXXXX0"
	CX = 0006h (size of buffer in bytes)
	DS:DX -> buffer for API entry point record (see #0732)
		first byte must be 00h on entry
Return: CF clear if successful
	    buffer filled (see #2208 at INT 67/AH=3Fh)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	this function is supported by Microsoft EMM386.EXE v4.45+ and
	  CEMM v5.10+, and is intended for use by MS Windows as it starts up
	if no other program has hooked INT 67, an alternate installation
	  check for CEMM is testing for the string
	  "COMPAQ EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
	  handler's segment; if present, the word at offset 12h contains the
	  offset of the API entry point
SeeAlso: AX=4402h/SF=01h,AX=4402h/SF=02h,AX=4402h"EMM386",INT 67/AH=3Fh

Format of memory manager API entry point record:
Offset	Size	Description	(Table 0732)
 00h	WORD	??? (0022h for CEMM 5.11, 0025h for MS EMM386 v4.45)
 02h	DWORD	manager's private API entry point
		(see #0733,#2271 at INT 67/AX=FFA5h)

(Table 0733)
Call CEMM v5.10+ entry point with:
	AH = 00h get memory manager's state
	    Return: AH = state
			bit 0: turned OFF
			bit 1: AUTO mode enabled
	AH = 01h set memory manager's state
	    AL = new state (00h ON, 01h OFF, 02h AUTO)
	    Return: CF clear if successful
		    CF set on error
	AH = 02h Weitek coprocessor support
	    AL = subfunction
		00h get Weitek support state
		    Return: AL = status
				bit 0: Weitek coprocessor is present
				bit 1: Weitek support is enabled
		01h turn on Weitek support
		02h turn off Weitek support
	    Return: CF clear if successful
		    CF set on error
			AH = error code (01h invalid subfunc, 02h no Weitek)
	AH = 05h get statistics
	    ???
	AH > 06h
	    Return: CF set
		    AH = 01h (invalid function)
Notes:	AH=03h,04h,06h are NOPs which return CF clear, presumably for backwards
	  compatibility with earlier versions of CEMM
	in v5.11, AH=05h merely prints an error message (using INT 21/AH=09h)
	  stating that a different version of CEMM is installed and it is
	  therefore not possible to display the statistics
--------m-214402SF01-------------------------
INT 21 U - Memory Managers - GET EMM IMPORT STRUCTURE ADDRESS
	AX = 4402h subfn 01h
	BX = file handle for device "EMMXXXX0"
	CX = 0006h (size of buffer in bytes)
	DS:DX -> buffer for EMM import structure record (see #0734)
		first byte must be 01h on entry
Return: CF clear if successful
	    buffer filled (see also #2208 at INT 67/AH=3Fh)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	this function is supported by Microsoft EMM386.EXE v4.45+,
	  QEMM-386 v6+, and CEMM v5.10+, and is intended for use by MS Windows
	  as it starts up
	for QEMM-386, this call always returns an error if Windows3 support
	  has been disabled with the NW3 switch
SeeAlso: AX=4402h/SF=00h,AX=4402h"EMM386",INT 2F/AX=D201h/BX=5145h
SeeAlso: INT 67/AH=3Fh

Format of EMM import structure record:
Offset	Size	Description	(Table 0734)
 00h	DWORD	physical address of EMM import structure (see #0735)
 04h	BYTE	EMM import structure major version
 05h	BYTE	EMM import structure minor version
Note:	version 1.00 contains only EMS information (Windows 3.0+)
	version 1.10 contains UMB/XMS/HMA/EMS information (Windows 3.1)
	version 1.11 is version 1.10 plus memory manager maker/product name
SeeAlso: #2248

Format of Global EMM Import record:
Offset	Size	Description	(Table 0735)
 00h	BYTE	bit flags
		bit 2: ???
		bit 3: free EMM386 virtual HMA only if hma_page_table_paddr!=0
		bit 4: no UMB???
 01h	BYTE	reserved (0)
 02h	WORD	size of structure in bytes
 04h	WORD	structure version
 06h	DWORD	reserved
 0Ah 384 BYTEs	64 EMS frame status records (see #0736), one per 16K of
		  real-mode 1M address space
18Ah	BYTE	??? (must be at least 3*number_of_EMS_frames+4)
18Bh	BYTE	number of UMB frame descriptors following
18Ch 4N DWORDs	UMB frame descriptors
		each is 4 DWORDs giving physical page numbers for the four
		  4K pages of a 16K EMS frame (00000000h if non-UMB page)
var	BYTE	number of EMS handle info records following
    16N BYTEs	EMS handle info records (see #0738)
---version 1.10+ ---
	DWORD	realmode INT 67 vector (used by Windows to set breakpoints)
	DWORD	physical address of HMA page table values
	BYTE	number of free page entries following
     2N DWORDs	free page entries
		each is:
		    DWORD	physical page number
		    DWORD	number of consecutive physical pages
	BYTE	number of XMS handle info records following
		00h if memory manager does not emulate XMS or has real mode
		  XMS code which can execute in the Windows environment
    12N BYTEs	XMS handle info records (see #0739)
	BYTE	number of free UMB info records following
     2N WORDs	free UMB info records
		each is:
		    WORD	real mode start segment
		    WORD	size in paragraphs
---version 1.11---	
     20 BYTEs	blank-padded maker name
     20 BYTEs	blank-padded product name

Format of EMS frame status record:
Offset	Size	Description	(Table 0736)
 00h	BYTE	frame type (see #0737)
 01h	BYTE	owner handle (00h/FFh = none) from frame including UMB
		index to UMB frame descriptors
 02h	WORD	logical page for frame, 7FFFh if none, FFFFh if non-EMS frame
 04h	BYTE	EMS physical page number (FFh for non-EMS = don't care???)
 05h	BYTE	flags for non-EMS frames (00h for EMS frame)
		bits 0,1 for first 4K, bits 2,3 for second 4K, etc:
		  10: direct mapping (linear address = physical address)
		  01: UMB mapping

Bitfields for EMS frame type:
Bit(s)	Description	(Table 0737)
 0	EMS frame
 1	(if EMS frame) in standard 64K page frame
 2	first 4K of frame is UMB
 3	second 4K of frame is UMB
 4	third 4K of frame is UMB
 5	last 4K of frame is UMB

Format of EMS handle info record:
Offset	Size	Description	(Table 0738)
 00h	BYTE	handle number (00h = system handle)
 01h	BYTE	flags
		bit 0: normal handle rather than system handle
		bit 2: ??? (set by some EMS managers)
 02h  8 BYTEs	EMS handle's name
 0Ah	WORD	number of 16K pages for handle
 0Ch	DWORD	physical address of page table entries forming page map
Note:	all values should be zero for the system handle if no large frame
	  support is present

Format of XMS handle info record:
Offset	Size	Description	(Table 0739)
 00h	WORD	handle
 02h	WORD	flags
		bit 0: handle usable by Windows
			(already in use when Windows started if clear)
		bit 1: reserved (0)
 04h	DWORD	size in KB (may be zero, used only if flags bit 0 set)
 08h	DWORD	physical address (only if flags bit 0 set)
--------m-214402SF02-------------------------
INT 21 U - Memory Managers - GET MEMORY MANAGER VERSION
	AX = 4402h subfn 02h
	BX = file handle for device "EMMXXXX0"
	CX = 0002h (size of buffer in bytes)
	DS:DX -> buffer for memory manager version (see #0740)
		first byte must be 02h on entry
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	this function is supported by Microsoft EMM386.EXE v4.45+ and
	  CEMM v5.10+, and is intended for use by MS Windows as it starts up
SeeAlso: AX=4402h/SF=00h,AX=4402h"EMM386",INT 67/AH=3Fh

Format of memory manager version:
Offset	Size	Description	(Table 0740)
 00h	BYTE	major version
 01h	BYTE	minor version (binary)
--------m-214402-----------------------------
INT 21 U - Microsoft EMM386.EXE v4.45 - GET MEMORY MANAGER INFORMATION
	AX = 4402h
	BX = file handle for device "EMMXXXX0"
	CX = size of buffer in bytes (varies, see #0741)
	DS:DX -> buffer for returned data (see #0741)
		first byte must be set on entry to indicate desired data
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	an error is returned if the number of bytes to be read does not match
	  the number of bytes returned for the specified data item
	this function is part of the interface which allows MS Windows to
	  cooperate with memory managers
SeeAlso: AX=4402h/SF=00h,AX=4402h/SF=01h,AX=4402h/SF=02h,INT 67/AX=FFA5h

Format of EMM386.EXE data buffer:
Offset	Size	Description	(Table 0741)
 00h	BYTE	(call) function
		03h get ???
		04h get ???
---function 03h---
 00h	WORD	???
 02h	WORD	???
---function 04h---
 00h	WORD	segment of UMB containing EMM386 code/data
 02h	WORD	number of paragraphs of EMM386 code/data in UMB
 04h	WORD	???
----------214402-----------------------------
INT 21 U - IFSHLP.SYS - GET ENTRY POINT
	AX = 4402h
	BX = file handle for device "IFS$HLP$"
	CX = 0008h (size of buffer in bytes)
	DS:DX -> buffer for entry point record (see #0639 at AH=3Fh"IFSHLP")
Return: CF clear if successful
	    buffer filled
	CF set on error
		 AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AH=3Fh"IFSHLP"
--------D-214403-----------------------------
INT 21 - DOS 2+ - IOCTL - WRITE TO CHARACTER DEVICE CONTROL CHANNEL
	AX = 4403h
	BX = file handle referencing character device
	CX = number of bytes to write
	DS:DX -> data to write
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	format of data is driver-specific (see below for some specific cases)
	if the file handle refers to "4DOSSTAK", the 4DOS (v2.x-3.03)
	  KEYSTACK.SYS driver will push the specified characters on the
	  keyboard stack; similarly for "NDOSSTAK", the NDOS KEYSTACK.SYS
	  driver will push the characters onto the keyboard stack
SeeAlso: AX=4400h,AX=4402h,AX=4405h,INT 2F/AX=122Bh,INT 2F/AX=D44Dh
SeeAlso: INT 2F/AX=D44Fh
--------c-214403-----------------------------
INT 21 - SMARTDRV.SYS v3.x only - IOCTL - CACHE CONTROL
	AX = 4403h
	BX = handle for device "SMARTAAR"
	CX = number of bytes to write
	DS:DX -> SMARTDRV control block (see #0743)
Return: CF clear if successful
	    AX = number of bytes actually written
		0000h if control block too small for given command
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4402h"SMARTDRV",INT 2F/AX=4A10h/BX=0000h

(Table 0742)
Values for SMARTDRV function code:
 00h	flush cache
 01h	flush and discard cache
 02h	disable caching (flushes and discards cache first)
 03h	enable caching
 04h	control write caching
 05h	set flushing tick count
 06h	lock cache contents
 07h	unlock cache contents
 08h	set flush-on-reboot flag
 09h	unused
 0Ah	control full-track caching
 0Bh	reduce cache size
 0Ch	increase cache size
 0Dh	set INT 13 chain address

Format of SMARTDRV control block:
Offset	Size	Description	(Table 0743)
 00h	BYTE	function code (see #0742)
---functions 00h-03h,06h,07h---
 no additional fields
---function 04h---
 01h	BYTE	write caching control action
		00h turn off write-through
		01h turn on write-through
		02h turn off write buffering (also flushes cache)
		03h turn on write buffering (also flushes cache)
---function 05h---
 01h	WORD	number of timer ticks between cache flushes
---function 08h---
 01h	BYTE	new flush-on-reboot flag (00h off, 01h on)
---function 0Ah---
 01h	BYTE	full-track writes are
		00h not cached
		01h cached
---functions 0Bh,0Ch---
 01h	WORD	number of 16K pages by which to increase/reduce cache size
---function 0Dh---
 01h	DWORD	new address to which to chain on INT 13
Note:	the previous address is not preserved
--------d-214403-----------------------------
INT 21 - CD-ROM device driver - IOCTL OUTPUT
	AX = 4403h
	BX = file handle referencing character device for CD-ROM driver
	CX = number of bytes to write
	DS:DX -> control block (see #0744)
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4402h"CD-ROM",INT 2F/AX=0802h

Format of CR-ROM control block:
Offset	Size	Description	(Table 0744)
 00h	BYTE	function code
		00h eject disk
		01h lock/unlock door
		02h reset drive
		03h control audio channel
		04h write device control string
		05h close tray
---functions 00h,02h,05h---
 no further fields
---function 01h---
 01h	BYTE	lock function
		00h unlock door
		01h lock door
---function 03h---
 01h	BYTE	input channel (0-3) for output channel 0
 02h	BYTE	volume for output channel 0
 03h	BYTE	input channel (0-3) for output channel 1
 04h	BYTE	volume for output channel 1
 05h	BYTE	input channel (0-3) for output channel 2
 06h	BYTE	volume for output channel 2
 07h	BYTE	input channel (0-3) for output channel 3
 08h	BYTE	volume for output channel 3
Note:	output channels 0 and 1 are left and right, 2 and 3 are left prime and
	  right prime; a volume of 00h is off
---function 04h---
 01h  N BYTEs	bytes to send directly to the CD-ROM drive without
		  interpretation
--------d-214403-----------------------------
INT 21 - Brian Antoine Seagate ST-01 SCSI.SYS - IOCTL - EXECUTE COMMANDS
	AX = 4403h
	BX = handle for device "SCSITAPE"
	CX = number of bytes to write
	DS:DX -> SCSITAPE control block (see #0745)
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4405h"ST-01",INT 78/AH=10h

Format of SCSITAPE control block:
Offset	Size	Description	(Table 0745)
 00h	WORD	command type
		'F' Format (argument 1 = interleave, argument 2 = format type)
		'E' Erase
		'R' Rewind
		'L' Load
		'N' No Load
		'S' Space (argument 1 = count, argument 2 = type)
		'M' File Mark (argument 1 = count)
		'A' Reassign
 02h	WORD	argument 1
 04h	WORD	argument 2
 06h	WORD	segment of command buffer
 08h	WORD	offset of command buffer
 0Ah	WORD	length of command buffer
--------E-214403-----------------------------
INT 21 U - AI Architects - OS/x86??? - API
	AX = 4403h
	BX = handle for device "AIA_OS"
	CX = number of bytes to write (ignored)
	DS:DX -> 12-byte buffer (see #0746), first byte is command:
		  81h installation check
		  82h get API entry point
		  84h uninstall
Return: CF clear if successful
	    AX = number of bytes actually written
	    DS:DX buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Ch,0Dh) (see #0885 at AH=59h)
Notes:	these functions are only available if the DOS extender was loaded as a
	  device driver in CONFIG.SYS
	called by TKERNEL (a licensed version of AI Architects/Ergo OS/x86)
SeeAlso: INT 2F/AX=FBA1h/BX=0081h,INT 2F/AX=FBA1h/BX=0082h
Index:	installation check;OS/x86|entry point;OS/x86|uninstall;OS/x86

Format of buffer on return:
Offset	Size	Description	(Table 0746)
 00h  4 BYTEs	signature "IABH"
---if function 81h---
 (no additional fields)
---if function 82h---
 04h	DWORD	pointer to API entry point (see INT 2F/AX=FBA1h/BX=0082h)
---if function 84h---
 04h	WORD	success indicator
 06h	WORD	segment of ???
 08h	WORD	segment of ??? memory block to free if nonzero
 0Ah	WORD	segment of ??? memory block to free if nonzero
--------V-214403-----------------------------
INT 21 - PGS1600.DEV - IOCTL - SET CONFIGURATION???
	AX = 4403h
	BX = file handle for device "PGS1600$"
	CX = 0018h (size of buffer)
	DS:DX -> configuration buffer (see #0704 at AX=4402h"PGS1600")
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: PGS1600.DEV is a device driver for the Cornerstone Technology PG1600
	  display adapter, which provides a 1600x1200 monochrome display as
	  well as one of two emulations, MDA or CGA.
SeeAlso: AX=4402h"PGS1600"
--------N-214403-----------------------------
INT 21 - PC/TCP IPCUST.SYS - RESET CONFIGURATION DATA READ POINTER
	AX = 4403h
	BX = file handle referencing device "$IPCUST"
	CX, DS:DX ignored
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Notes:	there are a total of 378h bytes of configuration data for IPCUST.SYS
	  version 2.05.	 If less than the entire data is read or written,
	  the next read/write continues where the previous one ended; this
	  call and AX=4402h both reset the location at which the next
	  operation starts to zero
	v2.1+ uses a new configuration method, but allows the installation
	  of IPCUST.SYS for backward compatibility with other software which
	  must read the PC/TCP configuration
SeeAlso: AH=3Fh"IPCUST",AH=40h"IPCUST",AX=4402h"IPCUST"
--------V-214403-----------------------------
INT 21 - Compaq AG1024.SYS - CPQ_MGES - IOCTL OUTPUT
	AX = 4403h
	BX = file handle referencing device "CPQ_MGES"
	DS:DX -> request packet (see #0747)
	CX ignored
Return: CF clear if successful
	    AX destroyed
	    data buffer filled (if applicable)
	    first word of request packet set to number of bytes of data
	      available (amount returned is smaller of this and requested
	      amount)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: AG1024.SYS is a device driver for the Advanced Graphics 1024 adapter
SeeAlso: AX=4403h"RGDI"

Format of Compaq AG1024.SYS request packet:
Offset	Size	Description	(Table 0747)
 00h	WORD	function
		0000h get ??? (26h bytes)
		0001h get ??? (36h bytes)
		0002h set ??? (same as returned by function 0001h)
		0003h get ??? (6 bytes)
		0004h get ???
		0005h get ???
		0006h get ??? (10h bytes)
		0007h set ??? (same as returned by function 0006h)
---functions 00h-03h,06h,07h---
 02h	WORD	size of data buffer
 04h	DWORD	-> buffer for function's data
 ---functions 04h,05h---
 02h	WORD	???
 04h	WORD	size of data buffer
 06h	DWORD	-> buffer to receive data
--------V-214403-----------------------------
INT 21 - Compaq AG1024.SYS - RGDI - IOCTL OUTPUT
	AX = 4403h
	BX = file handle referencing device "$$$$RGDI"
	DS:DX -> request packet (see #0748)
	CX ignored
Return: CF clear if successful
	    AX destroyed
	    data buffer filled (if applicable)
	    first word of request packet set to number of bytes of data
	      available (amount returned is smaller of this and requested
	      amount)
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: AG1024.SYS is a device driver for the Advanced Graphics 1024 adapter
SeeAlso: AX=4402h"RGDI",AX=4403h"CPQ_MGES"

Format of Compaq AG1024.SYS request packet:
Offset	Size	Description	(Table 0748)
 00h	WORD	function
		0000h get entry points
		0001h get ???
 02h	DWORD	address of buffer for returned data
--------m-214403SF01-------------------------
INT 21 U - Qualitas 386MAX v6.01+ - TURN 386MAX OFF
	AX = 4403h subfn 01h
	BX = handle for device "386MAX$$"
	DS:DX -> BYTE 01h
	CX ignored
Return: DS:DX -> BYTE status (00h = successful)
	CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	this function will fail if any EMS or UMBs are in use
SeeAlso: AX=4403h/SF=02h,AX=4403h/SF=03h,AX=4403h/SF=05h
--------m-214403SF02-------------------------
INT 21 U - Qualitas 386MAX v6.01+ - TURN 386MAX ON
	AX = 4403h subfn 02h
	BX = handle for device "386MAX$$"
	DS:DX -> BYTE 02h
	CX ignored
Return: DS:DX -> BYTE status (00h = successful)
	CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4403h/SF=01h,AX=4403h/SF=03h,AX=4403h/SF=05h
--------m-214403SF03-------------------------
INT 21 U - Qualitas 386MAX v6.01+ - SET STATE
	AX = 4403h subfn 03h
	BX = handle for device "386MAX$$"
	CX = number of bytes to copy (up to size of state buffer)
	DS:DX -> BYTE 03h followed by state buffer
		  (see #0687 at AX=4402h"386MAX")
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
		 AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	the first byte of the buffer must be either 01h, 02h, or 03h
	  (specifying the version of the state record) and the buffer must
	  contain CX bytes AFTER the initial byte
SeeAlso: AX=4402h"386MAX"
--------m-214403SF05-------------------------
INT 21 U - Qualitas 386MAX v7.00+ - LIMIT AUTOMATIC ACTIVATION TO STD EMS CALLS
	AX = 4403h subfn 05h
	BX = handle for device "386MAX$$"
	DS:DX -> BYTE 05h
	CX ignored
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Desc:	specifies that 386MAX will only shift from AUTO to ON mode on standard
	  EMS calls INT 67/AH=40h-5Dh
SeeAlso: AX=4403h/SF=02h,AX=4403h/SF=03h,AX=4403h/SF=06h
--------m-214403SF06-------------------------
INT 21 U - Qualitas 386MAX v7.00+ - ALLOW AUTOMATIC ACTIVATION ON ANY INT 67
	AX = 4403h subfn 06h
	BX = handle for device "386MAX$$"
	DS:DX -> BYTE 06h
	CX ignored
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Desc:	specified that 386MAX should shift from AUTO to ON mode on any INT 67
	  call other than INT 67/AH=3Fh
SeeAlso: AX=4403h/SF=01h,AX=4403h/SF=03h,AX=4403h/SF=05h
--------n-214403-----------------------------
INT 21 U - PenDOS PENDEV.SYS - ???
	AX = 4403h
	BX = file handle for device "$$PENDOS" or "$$PD_REG"
	CX = size of buffer
	DS:DX -> buffer containing ???
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: A limited version of PenDOS by Communication Intelligence Corporation,
	  which provides pen capability to keyboard-based programs, is bundled
	  with IBM DOS 6.1
Note:	this call sets the WORD at offset 1Ah into the device driver request
	  header used to call the driver to 0000h.
SeeAlso: AX=4402h"PENDEV.SYS"
--------D-214404-----------------------------
INT 21 - DOS 2+ - IOCTL - READ FROM BLOCK DEVICE CONTROL CHANNEL
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc.)
	CX = number of bytes to read
	DS:DX -> buffer
Return: CF clear if successful
	    AX = number of bytes actually read
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	format of data is driver-specific
SeeAlso: AX=4402h,AX=4405h,INT 2F/AX=122Bh
--------k-214404-----------------------------
INT 21 - Stacker - GET DEVICE DRIVER ADDRESS AND SET VOLUME NUMBER
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc.)
	CX = 0004h
	DS:DX -> DWORD buffer to receive device driver address
Return: buffer filled with pointer into Stacker device driver (see #1341):
	  driver + 19h if Stacker Anywhere controls this drive
	  driver + 1Ah if Stacker controls this drive
	  unchanged else
Notes:	in addition to returning the address of the Stacker device driver,
	  this call also sets the volume number at offset 58h in the device
	  driver (see #1341 at INT 25/AX=CDCDh)
	Stacker Anywhere does not link its built-in device driver into
	  the standard device driver chain, but it can be found via CDS/DPB
	this call can be used as an installation check for all versions of
	  Stacker and Stacker Anywhere to avoid the INT 25 call
SeeAlso: AX=4408h,AX=440Eh,AH=52h,INT 25/AX=CDCDh
--------k-214404-----------------------------
INT 21 - Stacker - GET STACVOL FILE SECTORS
	AX = 4404h
	BL = drive number (0 is current drive)
	CX = byte count (i.e., 200h = 1 sector)
	DS:DX -> buffer (see #0749)
Return: Data Buffer contains the number of sectors requested from the
	  STACVOL physical file for the drive specified.

Format of Stacker buffer:
Offset	Size	Description	(Table 0749)
 00h	WORD	01CDh
 02h	WORD	sector count
 04h	DWORD	number of starting sector
 08h	DWORD	far pointer to Data Buffer
--------k-214404-----------------------------
INT 21 - DUBLDISK.SYS v2.6 - GET INFO
	AX = 4404h
	BL = drive number of DoubleDisk drive (00h = default, 01h = A:, etc.)
	CX = number of bytes (000Ah-0014h, call ignored otherwise)
	DS:DX -> data record (see #0750)
Return: CF clear if successful
	    AX = number of bytes read
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: DUBLDISK.SYS is the device driver portion of DoubleDisk, a disk
	  expander by Vertisoft Systems, Inc.
Note:	the installation check for v2.6 consists of scanning memory for the
	  signature "FAT 2.6  byte:", which is immediately followed by a data
	  table (see #0751)
BUG:	VOPT (a disk optimizer by Golden Bow Software) assumes that any driver
	  which returns the "correct" number of bytes when the first word of
	  the buffer for the data record contains the signature value 4444h is
	  DoubleDisk; a workaround is for the non-DoubleDisk driver to return
	  no data if the signature is present
SeeAlso: AX=440Dh
Index:	installation check;DUBLDISK.SYS

Format of DUBLDISK data record:
Offset	Size	Description	(Table 0750)
 00h	WORD	(call) signature 4444h
 02h	BYTE	(call) function
			00h ???
			01h ???
---function 00h---
 02h	BYTE	(ret) ???
 03h	BYTE	(ret) ???
---function 01h---
 02h	WORD	(ret) 4444h
 04h	WORD	allocation unit size???
 06h	WORD	???
 08h	WORD	???
 0Ah	BYTE	???

Format of DUBLDISK signature data table:
Offset	Size	Description	(Table 0751)
 00h  5 BYTEs	???
 05h	BYTE	first drive number
 06h	BYTE	number of drives
 07h	???
--------k-214404-----------------------------
INT 21 - DBLSPACE.BIN - IOCTL - FLUSH OR INVALIDATE INTERNAL CACHES
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = 000Ah (size of DSPACKET structure)
	DS:DX -> DSPACKET structure (see #0752)
Return: CF clear if IOCTL successful -- check DSPACKET for actual status
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4405h"DBLSPACE",INT 2F/AX=4A11h/BX=0000h

Format of DoubleSpace DSPACKET structure:
Offset	Size	Description	(Table 0752)
 00h	WORD	signature 444Dh ("DM")
 02h	BYTE	command code
		46h ('F') flush internal caches
		49h ('I') flush and invalidate internal caches
 03h	WORD	result code
		(ret) 4F4Bh ("OK") if successful, else unchanged
 05h  5 BYTEs	padding
--------k-214404-----------------------------
INT 21 - DBLSPACE.BIN v6.2 - IOCTL - GET ??? FOR SPECIFIED DRIVE
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = size of DSPACKET structure (ignored in DOS 6.2)
	DS:DX -> DSPACKET structure (see #0753)
Return: CF clear if IOCTL successful -- check DSPACKET for actual status
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4405h"DBLSPACE",INT 2F/AX=4A11h/BX=0000h

Format of DoubleSpace DSPACKET structure:
Offset	Size	Description	(Table 0753)
 00h	WORD	signature 444Dh ("DM")
 02h	BYTE	command code
		53h ('S') get ??? for specified drive
 03h	WORD	result code
		(ret) 4F4Bh ("OK") if successful, else unchanged
 05h	DWORD	(ret) pointer to 96-byte ??? data
 09h	DWORD	(ret) pointer to ??? data
 0Dh  3 BYTEs	reserved
----------214404-----------------------------
INT 21 U - DoubleTools v1.0 - GET ???
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = 0006h
	DS:DX -> DoubleTools structure (see #0754)
Return: CF clear if IOCTL successful -- check DSPACKET for actual status
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	the Transporter device driver has the signature 55h 61h 50h 74h
	  ("DaPt") twelve bytes after it beginning
	
Format of DoubleTools structure:
Offset	Size	Description	(Table 0754)
 00h	WORD	(call) signature 55h AAh
		(ret) signature 78h 70h ("xp")
 02h	WORD	(call) signature 52h 16h
		(ret) ???
 04h	WORD	(ret) segment of driver's DS (same as its PSP)
--------d-214404-----------------------------
INT 21 U - xDISK v3.31 - CONFIGURE
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = 0047h (length of version string)
	DS:DX -> 79-byte buffer for version string and ???
	DS:0081h = commandline containing new switches for driver
Return: CF clear if successful
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: xDISK is a shareware resizeable EMS RAMdisk by FM de Monasterio
SeeAlso: AX=4405h"xDISK",INT 2F/AH=DDh/BX=7844h"xDISK"
--------c-214404-----------------------------
INT 21 - COMBI-disk v1.13 - GET DATA RECORD
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = 0032h (length of data packet)
	DS:DX -> buffer for data packet (see #0755)
Return: CF clear if successful
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: COMBI-disk is a shareware combination cache and RAMdisk sharing a
	  single pool of memory by Vadim V. Vlasov
Note:	the installation check consists of scanning the valid drives for one
	  which returns a correctly-sized data packet with the proper
	  signature in the first field
SeeAlso: AX=4405h"COMBI"
Index:	installation check;COMBI-disk

Format of COMBI-disk data packet:
Offset	Size	Description	(Table 0755)
 00h  6 BYTEs	ASCIZ signature "COMBI"
 06h	WORD	version (high byte = major, low = decimal minor version)
 08h	BYTE	current options (see below)
 09h	BYTE	sectors per allocation block
 0Ah	WORD	maximum buffer in KB
 0Ch	WORD	current buffer in KB (less than max if XMS memory being lent)
 0Eh	WORD	total number of allocation blocks
 10h	WORD	current number of allocation blocks
 12h	WORD	number of blocks being used by RAM disk
 14h	WORD	number of blocks being used by cache or unused
 16h	WORD	number of dirty cache blocks
 18h	WORD	number of blocks which could not be written out due to errors
 1Ah	WORD	total number of read requests
 1Ch	WORD	total number of sectors read
 1Eh	WORD	number of BIOS read requests (cache misses)
 20h	WORD	number of sectors read via BIOS (cache misses)
 22h	WORD	total number of write requests
 24h	WORD	total number of sectors written
 26h	WORD	number of BIOS write requests
 28h	WORD	number of sectors written via BIOS
 2Ah	WORD	number of RAM disk read requests
 2Ch	WORD	number of sectors read from RAM disk
 2Eh	WORD	number of RAM disk write requests
 30h	WORD	number of sectors written to RAM disk
--------d-214404-----------------------------
INT 21 - SFS v1.00 - GET CONFIGURATION INFORMATION
	AX = 4404h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = 001Ah (length of data packet)
	DS:DX -> buffer for data packet (see #0756)
Return: CF clear if successful
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: SFS (Secure FileSystem) is a shareware encrypting disk driver by
	  Peter C. Gutmann
SeeAlso: AX=4405h"SFS"

Format of SFS data packet:
Offset	Size	Description	(Table 0756)
 00h  4 BYTEs	signature string "SFS1"
 04h	WORD	SFS unit number (0-based)
 06h	WORD	drive on which the SFS volume is mounted
 08h	DWORD	sector offset of logical volume from start of physical volume
		0 if logical volume = physical volume
 0Ch	WORD	flag: 00h = no disk mounted, 01h = disk mounted
 0Eh	WORD	flag: 00h read/write, 01h read-only
 10h	WORD	quick-unmount hotkey (high byte = shift state, low = scan code)
 12h	WORD	auto-unmount time in minutes, or 0000h if already expired, or
		FFFFh if not set
 14h	WORD	time in minutes remaining before auto-unmount
 16h	WORD	internal driver check code
		0000h no error
		0001h driver consistency check failed
		0002h unit consistency check failed
 18h	WORD	disk access mode
		0000h BIOS
		0001h IDE direct access
		0002h SCSI direct access
--------D-214405-----------------------------
INT 21 - DOS 2+ - IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL
	AX = 4405h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = number of bytes to write
	DS:DX -> data to write
Return: CF clear if successful
		 AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	format of data is driver-specific
SeeAlso: AX=4403h,AX=4404h,INT 2F/AX=122Bh
--------d-214405-----------------------------
INT 21 - Brian Antoine Seagate ST-01 SCSI.SYS - IOCTL - EXECUTE COMMANDS
	AX = 4405h
	BX = drive number (00h = default, 01h = A:, etc)
	CX = number of bytes to write
	DS:DX -> SCSIDISK control block (see also #0745 at AX=4403h"ST-01")
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4403h"ST-01"
--------k-214405-----------------------------
INT 21 U - DBLSPACE.BIN - IOCTL - FLUSH OR INVALIDATE INTERNAL CACHES
	AX = 4405h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = 000Ah (size of DSPACKET structure)
	DS:DX -> DSPACKET structure (see #0757)
Return: CF clear if IOCTL successful -- check DSPACKET for actual status
		 AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	this call is identical to the documented AX=4404h
SeeAlso: AX=4404h"DBLSPACE",INT 2F/AX=4A11h/BX=0000h

Format of DoubleSpace DSPACKET structure:
Offset	Size	Description	(Table 0757)
 00h	WORD	signature 444Dh ("DM")
 02h	BYTE	command code
		46h ('F') flush internal caches
		49h ('I') flush and invalidate internal caches
 03h	WORD	result code
		(ret) 4F4Bh ("OK") if successful, else unchanged
 05h  5 BYTEs	padding
--------d-214405-----------------------------
INT 21 U - xDISK v3.31 - ???
	AX = 4405h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = number of bytes to write
	DS:DX -> buffer containing version string
	???
Return: CF clear if successful
		 AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: xDISK is a shareware resizeable EMS RAMdisk by FM de Monasterio
SeeAlso: AX=4404h"xDISK",INT 2F/AH=DDh/BX=7844h"xDISK"
--------d-214405-----------------------------
INT 21 - COMBI-disk v1.13 - CONTROL COMBI-disk
	AX = 4405h
	BL = drive number (00h = default, 01h = A:, etc) for RAM disk
	CX = number of bytes to write
	DS:DX -> buffer containing command packet (see #0759)
Return: CF clear if successful
	    AX = number of bytes actually transferred
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
SeeAlso: AX=4404h"COMBI"

(Table 0758)
Values for COMBI-disk command code:
 80h	flush cache
 81h	change options byte
 82h	shrink memory
 83h	expand memory
 84h	get dirty block information
 85h	reset write errors
 86h	reset counters

Format of COMBI-disk command packet:
Offset	Size	Description	(Table 0759)
 00h	WORD	version
 02h	BYTE	command code (see #0758)
---command code 80h---
 no additional fields
---command code 81h---
 03h	BYTE	new options byte (see #0760)
---command code 82h---
 03h	WORD	number of KB to release
---command code 83h---
 03h	WORD	number of KB to expand
---command code 84h---
 03h	DWORD	-> buffer for block info (see #0761)
---command code 85h---
 03h	DWORD	block ID
---command code 86h---
 03h	BYTE	which counters to reset
		bit 0: hard disk read counts
		bit 1: hard disk write counts
		bit 2: RAM disk read/write counts
Note:	multiple commands may be placed in a single packet by stringing
	  together as many command/argument pairs as desired

Bitfields for COMBI-disk options byte:
Bit(s)	Description	(Table 0760)
 0	cache off
 1	cache frozen
 2	write caching enabled
 3	delayed writing disabled
 5	fix memory allocation (no XMS lending)
 6	no 'sector not found' error

Format of COMBI-disk block info:
Offset	Size	Description	(Table 0761)
 00h	DWORD	block ID
 04h	BYTE	bitmask of valid sectors in block
 05h	BYTE	bitmask of dirty sectors in block
 06h	BYTE	last error returned by BIOS
 07h	BYTE	number of errors
--------D-214405-----------------------------
INT 21 - SFS v1.00 - DRIVER CONTROL
	AX = 4405h
	BL = drive number (00h = default, 01h = A:, etc)
	CX = number of bytes to write
	DS:DX -> data to write (see #0763)
Return: CF clear if successful
	    AX = number of bytes actually written
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Program: SFS (Secure FileSystem) is a shareware encrypting disk driver by
	  Peter C. Gutmann
SeeAlso: AX=4404h"SFS"

(Table 0762)
Values for SFS control function:
 00h	"PACKET_SET_DISKINFO"	 set disk parameters
 01h	"PACKET_SET_KEYINFO"	 set keying information
 02h	"PACKET_SET_READONLY"	 select read/write or read-only
 03h	"PACKET_SET_DRIVENO"	 set drive number to mount
 04h	"PACKET_SET_MOUNTSTATUS" set mount status
 05h	"PACKET_SET_UNMOUNT"	 set/clear quick-unmount hotkey
 06h	"PACKET_SET_TIMEOUT"	 set/clear auto-unmount timeout

Format of SFS control data packet:
Offset	Size	Description	(Table 0763)
 00h	WORD	signature 4330h ('C0')
 02h	WORD	function (see #0762)
---function 00h---
 04h	WORD	sector size in bytes
 06h	BYTE	sectors per cluster
 07h	WORD	number of boot sectors
 09h	BYTE	number of copies of FAT
 0Ah	WORD	size of root directory in entries
 0Ch	WORD	number of sectors on disk, 16-bit
 0Eh	BYTE	media descriptor byte
 0Fh	WORD	sectors per FAT
 11h	WORD	sectors per track
 13h	WORD	number of heads
 15h	DWORD	number of hidden sectors
 19h	DWORD	number of sectors on disk, 32-bit
---function 01h---
 04h 20 BYTEs	master IV for encrypted disk
 18h 64 BYTEs	NDC/SHS keying information
---function 02h---
 04h	WORD	read-only state: 00h read-only, 01h read/write
---function 03h---
 04h	WORD	drive number (see #0764)
 06h	DWORD	sector offset of logical volume from start of physical volume
		0 if logical volume = physical volume
---function 04h---
 04h	WORD	mount status (00h unmounted, 01h mounted)
---function 05h---
 04h	WORD	hotkey (high byte = shift state, low byte = scan code or 00h)
		0000h to disable hotkey
---function 06h---
 04h	WORD	timeout in minutes before automatic unmount
		0000h to disable auto-unmount
Notes:	the data for function 00h corresponds to a DOS BPB (see AH=53h)
	functions 00h, 01h, and 03h automatically unmount the encrypted drive
	unmounting a drive with function 04h also destroys the encryption
	  information in the driver and forces all dirty buffers to be flushed

Bitfields for SFS drive number:
Bit(s)	Description	(Table 0764)
 15-12	drive access mode
	0000 BIOS access
	0001 direct IDE access
	0010 direct SCSI access
---if BIOS access---
 11-8	unused (0)
 7-0	BIOS drive number
---if IDE access---
 11-8	unused (0)
 7-0	IDE drive number
---if SCSI access---
 11-8	SCSI host number
 7-4	SCSI target ID
 3-0	SCSI logical unit number
--------D-214406-----------------------------
INT 21 - DOS 2+ - IOCTL - GET INPUT STATUS
	AX = 4406h
	BX = file handle
Return: CF clear if successful
	    AL = input status
		00h not ready (device) or at EOF (file)
		FFh ready
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	files may not register as being at EOF if positioned there by AH=42h
SeeAlso: AX=4407h,INT 2F/AX=122Bh
--------D-214407-----------------------------
INT 21 - DOS 2+ - IOCTL - GET OUTPUT STATUS
	AX = 4407h
	BX = file handle
Return: CF clear if successful
	    AL = input status
		00h not ready
		FFh ready
	CF set on error
	    AX = error code (01h,05h,06h,0Dh) (see #0885 at AH=59h)
Note:	for DOS 2+, files are always ready for output, even if the disk is
	  full or no media is in the drive
SeeAlso: AX=4406h,INT 2F/AX=122Bh
--------D-214408-----------------------------
INT 21 - DOS 3.0+ - IOCTL - CHECK IF BLOCK DEVICE REMOVABLE
	AX = 4408h
	BL = drive number (00h = default, 01h = A:, etc)
Return: CF clear if successful
	    AX = media type (0000h removable, 0001h fixed)
	CF set on error
	    AX = error code (01h,0Fh) (see #0885 at AH=59h)
Note:	in addition to the normal operation, if Stacker is installed, this
	  call also sets the volume number at offset 58h in the Stacker
	  device driver (except under DR-DOS 3.41-5.0, which do not pass
	  through this call to the driver; use AX=440Eh instead)
	  (see AX=4404h"Stacker",AX=440Eh,INT 25/AX=CDCDh)
SeeAlso: AX=4400h,AX=4404h"Stacker",AX=4409h,INT 2F/AX=122Bh
--------D-214409-----------------------------
INT 21 - DOS 3.1+ - IOCTL - CHECK IF BLOCK DEVICE REMOTE
	AX = 4409h
	BL = drive number (00h = default, 01h = A:, etc)
Return: CF clear if successful
	    DX = device attribute word
		bit 15: drive is SUBSTituted
		bit 12: drive is remote
		bit  9: direct I/O not allowed
	CF set on error
	    AX = error code (01h,0Fh) (see #0885 at AH=59h)
Note:	on local drives, DX bits not listed above are the attribute word from
	  the device driver header (see #0858 at AH=52h); for remote drives,
	  the other bits appear to be undefined for DOS versions prior to 5.0
	  (they are all cleared in DOS 5+)
	checking whether DX=0800h on return appears to be a fairly reliable
	  method for detecting Microsoft's RAMDRIVE, though not for other
	  ramdisks (there appears to be no simple yet foolproof method for
	  detecting ramdisks, although the presence of only a single copy of
	  the FAT and only a single head on non-removable devices is a fairly
	  good indicator)
SeeAlso: AX=4400h,AX=4408h,AX=440Ah,INT 2F/AX=122Bh
--------D-21440A-----------------------------
INT 21 - DOS 3.1+ - IOCTL - CHECK IF HANDLE IS REMOTE
	AX = 440Ah
	BX = handle
Return: CF clear if successful
	    DX = attribute word (as stored in SFT)
		bit 15: set if remote
		bit 14: date/time not set on close
	CF set on error
	    AX = error code (01h,06h) (see #0885 at AH=59h)
Notes:	if file is remote, Novell Advanced NetWare 2.0 returns the number of
	  the file server on which the handle is located in CX
	DR-DOS 3.41 and 5.0 clear all bits of DX except bit 15
SeeAlso: AX=4400h,AX=4409h,AH=52h,INT 2F/AX=122Bh
--------D-21440B-----------------------------
INT 21 - DOS 3.1+ - IOCTL - SET SHARING RETRY COUNT
	AX = 440Bh
	CX = pause between retries (default 1)
	DX = number of retries (default 3)
Return: CF clear if successful
	CF set on error
	    AX = error code (01h) (see #0885 at AH=59h)
Notes:	delay is dependent on processor speed (value in CX specifies number of
	  64K-iteration empty loops to execute)
	if DX=0000h on entry, the retry count is left unchanged
SeeAlso: AH=52h,INT 2F/AX=1224h,INT 2F/AX=122Bh
--------D-21440C-----------------------------
INT 21 - DOS 3.2+ - IOCTL - GENERIC CHARACTER DEVICE REQUEST
	AX = 440Ch
	BX = device handle
	CH = category code (see #0765)
	CL = function number (see #0766)
	DS:DX -> parameter block (see #0767,#0768,#0769,#0770,#0771,#0772)
	SI = parameter to pass to driver (European MS-DOS 4.0, OS/2 comp box)
	DI = parameter to pass to driver (European MS-DOS 4.0, OS/2 comp box)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    DS:DX -> iteration count if CL=65h
	    SI = returned value (European MS-DOS 4.0, OS/2 comp box)
	    DI = returned value (European MS-DOS 4.0, OS/2 comp box)
Note:	DR-DOS 3.41 and 5.0 return error code 16h on CL=45h,65h if the device
	  does not support a retry counter
SeeAlso: AX=440Dh,INT 2F/AX=0802h,INT 2F/AX=122Bh,INT 2F/AX=14FFh
SeeAlso: INT 2F/AX=1A01h

(Table 0765)
Values for IOCTL category code:
 00h	unknown (DOS 3.3+)
 01h	COMn: (DOS 3.3+)
 03h	CON (DOS 3.3+)
 05h	LPTn:
 9Eh	Media Access Control driver (STARLITE)
 00h-7Fh reserved for Microsoft
 80h-FFh reserved for OEM/user-defined

(Table 0766)
Values for generic character IOCTL function:
 00h	MAC driver Bind (STARLITE) (see #0767)
 45h	set iteration (retry) count (see #0768)
 4Ah	select code page (see #0769)
 4Ch	start code-page preparation (see #0770)
 4Dh	end code-page preparation (see #0771)
 5Fh	set display information (DOS 4+) (see #0772)
 65h	get iteration (retry) count
 6Ah	query selected code page (see #0769)
 6Bh	query prepare list (see #0773)
 7Fh	get display information (DOS 4+) (see #0772)
Note:	bit assignments for function code:
		 bit 7: set to ignore if unsupported, clear to return error
	    bit 6: set if passed to driver, clear if intercepted by DOS
	    bit 5: set if queries data from device, clear if sends command
	    bits 4-0: subfunction

Format of parameter block for function 00h:
Offset	Size	Description	(Table 0767)
 00h  8 BYTEs	ASCIZ signature "STARMAC"
 08h	WORD	version
 0Ah	WORD	flags
		bit 0: media requires connect or listen request before use
		bit 1: network is a LAN (broadcast/multicast supported)
		bit 2: point-to-point network
 0Ch	WORD	handle for use with MAC driver's private interface (filled in
		by MAC driver)
 0Eh	WORD	context
 10h	WORD	approximate speed in KB/sec (filled in by MAC driver)
 12h	WORD	approximate cost in cents per hour (filled in by MAC driver)
 14h	WORD	maximum packet size in bytes (filled in by MAC driver)
 16h	WORD	addressing format (filled in by MAC driver)
		0000h general addressing
		0001h Ethernet addressing
		0002h Token Ring addressing
		0003h Token Bus addressing
 18h	DWORD	Send entry point (filled in by MAC driver)
 1Ch	DWORD	RegisterEventHandler entry point (filled in by MAC driver)
 20h	DWORD	SetPacketFilter entry point (filled in by MAC driver)
 24h	DWORD	UnBind entry point (filled in by MAC driver)

Format of parameter block for function 45h:
Offset	Size	Description	(Table 0768)
 00h	WORD	number of times output is attempted before driver assumes
		  device is busy

Format of parameter block for functions 4Ah and 6Ah:
Offset	Size	Description	(Table 0769)
 00h	WORD	length of data
 02h	WORD	code page ID
 04h 2N BYTEs	DCBS (double byte character set) lead byte range
		  start/end for each of N ranges (DOS 4.0)
	WORD	0000h  end of data (DOS 4.0)

Format of parameter block for function 4Ch:
Offset	Size	Description	(Table 0770)
 00h	WORD	flags
		DISPLAY.SYS = 0000h
		PRINTER.SYS bit 0 clear to prepare downloaded font, set to
			prepare cartridge selection
 02h	WORD	length of remainder of parameter block
 04h	WORD	number of code pages following
 06h  N WORDs	code page 1,...,N

Format of parameter block for function 4Dh:
Offset	Size	Description	(Table 0771)
 00h	WORD	length of data
 02h	WORD	code page ID

Format of parameter block for functions 5Fh and 7Fh:
Offset	Size	Description	(Table 0772)
 00h	BYTE	level (0 for DOS 4.x-6.0)
 01h	BYTE	reserved (0)
 02h	WORD	length of following data (14)
 04h	WORD	control flags
		bit 0 set for blink, clear for intensity
		bits 1-15 reserved
 06h	BYTE	mode type (1=text, 2=graphics)
 07h	BYTE	reserved (0)
 08h	WORD	colors
		0000h = monochrome
		else N bits per pixel
 0Ah	WORD	pixel columns
 0Ch	WORD	pixel rows
 0Eh	WORD	character columns
 10h	WORD	character rows

Format of parameter block for function 6Bh:
Offset	Size	Description	(Table 0773)
 00h	WORD	length of following data
 02h	WORD	number of hardware code pages
 04h  N WORDs	hardware code pages 1,...,N
	WORD	number of prepared code pages
      N WORDs	prepared code pages 1,...,N
--------d-21440C-----------------------------
INT 21 - Greg Shenaut ASPITAPE.SYS - INTERFACE
	AX = 440Ch
	BX = device handle
	CH = category code
	    07h tape (ASPITAPE.SYS)
	CL = function
	    01h "mtop" - perform tape operation
	    02h "mtget" - get tape status
	    03h ignore end-of-tape errors
		 04h enable end-of-tape errors
	DS:DX -> parameter block (see #0774,#0775)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    DS:DX -> data block
Notes:	This device driver is a simple DOS interface to the Adaptec Advanced
	  SCSI Programming Interface (ASPI).  It provides the following device
	  names as access to the SCSI tape, 'RMTx' (rewind on close) and
	  'NRMTx' (NO rewind on close) where x can go from 0 to 3.  There may
	  also be the following names 'MTx' and 'NMTx' which default to 1024
	  byte blocks.	The names may also have a '$' appended to try and make
	  them unique from file names of 'RMT0' etc.
	once opend these devices must be put into RAW mode
SeeAlso: AX=4402h"ASPI"

Format of ASPITAPE.SYS mtop parameter block:
Offset	Size	Description	(Table 0774)
 00h	WORD	operation code
		00h "MTWEOF" - write an end-of-file record
		01h "MTFSF" - forward space file
		02h "MTBSF" - backward space file
		03h "MTFSR" - forward space record
		04h "MTBSR" - backward space record
		05h "MTREW" - rewind
		06h "MTOFFL" - rewind and unload
		07h "MTNOP" - perform TEST UNIT READY
 02h	DWORD	repetition count

Format of ASPITAPE.SYS mtget parameter block:
Offset	Size	Description	(Table 0775)
 00h	BYTE	ASPI host ID
 01h	BYTE	SCSI target ID
 02h	BYTE	SCSI logical unit number
 03h	BYTE	device parameters
		bit 0: drive must use fixed-block read and write
		bit 7: drive is an ASPI device
 04h	BYTE	current device state (see #0776)
 05h	BYTE	unit number within driver
 06h	WORD	fixed block blocksize
 08h	BYTE	last SCSI status
 09h	BYTE	last SCSI sense key
 0Ah	WORD	last SCSI opcode (packed) (see #0777)
 0Ch	WORD	residual bytes from SCSI opcode

Bitfields for ASPITAPE.SYS current device state:
Bit(s)	Description	(Table 0776)
 0	device currently opened in buffered mode
 1	drive currently opened in nonbuffered mode
 2	rewind drive on last close
 3	drive has been written on
 4	drive has been read from
 5	next read will return 0 bytes
 6	EOM will resemble EOF
 7	drive may be busy rewinding

Bitfields for SCSI opcode:
Bit(s)	Description	(Table 0777)
 0-7	SCSI operation (SCSI packet byte 0)
 8-10	SCSI flags (SCSI packet byte 1)
 11-12	ASPI "Direction Bits" (ASPI SRB byte 3)
--------D-21440D-----------------------------
INT 21 - DOS 3.2+ - IOCTL - GENERIC BLOCK DEVICE REQUEST
	AX = 440Dh
	BL = drive number (00h=default,01h=A:,etc)
	CH = category code (see #0778)
	CL = minor code (function) (see #0779)
	DS:DX -> (DOS) parameter block (see #0780,#0782,#0783,#0784,#0785)
	SI:DI -> (OS/2 comp box) parameter block (see #0786,#0788,#0789,#0790)
Return: CF set on error
	    AX = error code (01h,02h) (see #0885 at AH=59h)
	CF clear if successful
	    DS:DX -> data block if CL=60h or CL=61h
Notes:	DOS 4.01 seems to ignore the high byte of the number of directory
	  entries in the BPB for diskettes.
	functions 46h and 66h undocumented in DOS 4.x, documented for DOS 5+
	the DUBLDISK.SYS v2.6 driver only supports minor codes 60h and 67h
	DR-DOS 3.41-6.0 only support minor codes 40h-42h and 60h-62h; all
	  other minor codes return error code 16h
	some PCMCIA calls reportedly appear to be dangerous for MS-DOS versions
	  prior to 5.0
	minor code 60h normally produces no I/O except with AutoMount=1 for
	  DBLSPACE/DRVSPACE
SeeAlso: AX=440Ch,AH=69h,INT 2F/AX=0802h,INT 2F/AX=122Bh

(Table 0778)
Values for block device IOCTL category code:
 08h	disk drive
 00h-7Fh reserved for Microsoft
 80h-FFh reserved for OEM/user-defined

(Table 0779)
Values for generic block IOCTL minor code:
 00h	(OS/2)	\ used to lock/unlock a drive
 01h	(OS/2)	/
 40h	set device parameters (see #0780)
 41h	write logical device track (see #0782)
 42h	format and verify logical device track (see #0783)
 46h	(DOS 4+) set volume serial number (see #0785,AH=69h)
 47h	(DOS 4+) set access flag (see #0786)
 48h	(Enh. Disk Drive Spec) set media lock state (see #0787,INT 13/AH=45h)
 49h	(Enh. Disk Drive Spec) eject media in drive (see INT 13/AH=49h)
 50h	(PCMCIA) attribute memory write
 51h	(PCMCIA) common memory write
 52h	(PCMCIA) force media change (DOS 5+ ???) (see #0788)
 53h	(PCMCIA) erase drive
 54h	(PCMCIA) erase media
 56h	(PCMCIA) set erase status callback
 57h	(PCMCIA) append Card Information Structure (CIS) tuple
 58h	(PCMCIA) erase CIS tuples
 60h	get device parameters (see #0780)
 61h	read logical device track (see #0782)
 62h	verify logical device track (see #0784)
 66h	(DOS 4+) get volume serial number (see #0785,AH=69h)
 67h	(DOS 4+) get access flag (see #0786)
 68h	(DOS 5+) sense media type (see #0789)
 70h	(PCMCIA) attribute memory read
 73h	(PCMCIA) get memory media information (DOS 5+ ???) (see #0790)
 76h	(PCMCIA) get erase status callback
 77h	(PCMCIA) get first Card Information Structure (CIS) tuple
 78h	(PCMCIA) get next CIS tuple
 7Fh	(PCMCIA) get ??? information (see #0791,#0792)

Format of parameter block for functions 40h, 60h:
Offset	Size	Description	(Table 0780)
 00h	BYTE	special functions
		bit 0 set if function to use current BPB, clear if Device
			  BIOS Parameter Block field contains new default BPB
		bit 1 set if function to use track layout fields only
			must be clear if CL=60h
		bit 2 set if all sectors in track same size (should be set)
		bits 3-7 reserved
 01h	BYTE	device type (see #0781)
 02h	WORD	device attributes
		bit 0 set if nonremovable medium
		bit 1 set if door lock ("changeline") supported
		bits 2-15 reserved
 04h	WORD	number of cylinders
 06h	BYTE	media type
		for 1.2M drive
		    00h 1.2M disk (default)
		    01h 320K/360K disk
		F8h for DUBLDISK.SYS v2.6 expanded drives
		always 00h for other drive types
 07h 31 BYTEs	device BPB (see #0875 at AH=53h), bytes after BPB offset 1Eh
		  omitted
---function 40h only---
 26h	WORD	number of sectors per track (start of track layout field)
		(maximum 63)
 28h  N word pairs: number,size of each sector in track

(Table 0781)
Values for device type:
 00h	320K/360K disk
 01h	1.2M disk
 02h	720K disk
 03h	single-density 8-inch disk
 04h	double-density 8-inch disk
 05h	fixed disk
 06h	tape drive
 07h	(DOS 3.3+) other type of block device, normally 1.44M floppy
 08h	read/write optical disk
 09h	(DOS 5+) 2.88M floppy

Format of parameter block for functions 41h, 61h:
Offset	Size	Description	(Table 0782)
 00h	BYTE	special functions (reserved, must be zero)
 01h	WORD	number of disk head
 03h	WORD	number of disk cylinder
 05h	WORD	number of first sector to read/write
 07h	WORD	number of sectors
 09h	DWORD	transfer address

Format of parameter block for function 42h:
Offset	Size	Description	(Table 0783)
 00h	BYTE	reserved, must be zero (DOS <3.2) bit="" 0="0:" format/verify="" track="" 1:="" format="" status="" call="" (dos="" 3.2+),="" don't="" actually="" format="" bits="" 1-7="" reserved,="" must="" be="" zero="" value="" on="" return="" (dos="" 3.3+):="" 00h="" specified="" tracks,="" sectors/track="" supported="" by="" bios="" 01h="" function="" not="" supported="" by="" bios="" 02h="" specified="" tracks,="" sectors/track="" not="" allowed="" for="" drive="" 03h="" no="" disk="" in="" drive="" 01h="" word="" number="" of="" disk="" head="" 03h="" word="" number="" of="" disk="" cylinder="" format="" of="" parameter="" block="" for="" function="" 62h:="" offset="" size="" description="" (table="" 0784)="" 00h="" byte="" reserved,="" must="" be="" zero="" (dos=""><3.2) bit="" 0="0:" verify="" single="" track="" 1:="" verify="" multiple="" tracks="" bits="" 1-7="" reserved,="" must="" be="" zero="" value="" on="" return="" (dos="" 3.3+):="" 00h="" specified="" tracks,="" sectors/track="" supported="" by="" bios="" 01h="" function="" not="" supported="" by="" bios="" 02h="" specified="" tracks,="" sectors/track="" not="" allowed="" for="" drive="" 03h="" no="" disk="" in="" drive="" 01h="" word="" number="" of="" disk="" head="" 03h="" word="" number="" of="" disk="" cylinder="" 05h="" word="" number="" of="" tracks="" to="" verify="" (equivalent="" to="" 255="" or="" fewer="" sectors)="" format="" of="" parameter="" block="" for="" functions="" 46h,="" 66h:="" offset="" size="" description="" (table="" 0785)="" 00h="" word="" (call)="" info="" level="" (should="" be="" 0000h)="" 02h="" dword="" disk="" serial="" number="" (binary)="" 06h="" 11="" bytes="" volume="" label="" or="" "no="" name="" "="" 11h="" 8="" bytes="" filesystem="" type="" "fat12="" "="" or="" "fat16="" "="" (cl="66h" only)="" format="" of="" parameter="" block="" for="" functions="" 47h,="" 67h:="" offset="" size="" description="" (table="" 0786)="" 00h="" byte="" special-function="" field="" (must="" be="" zero)="" 01h="" byte="" disk-access="" flag,="" nonzero="" if="" access="" allowed="" by="" driver="" format="" of="" parameter="" block="" for="" function="" 48h:="" offset="" size="" description="" (table="" 0787)="" 00h="" byte="" (call)="" locking="" operation="" 00h="" lock="" media="" in="" drive="" 01h="" unlock="" media="" 02h="" get="" locking="" status="" 01h="" byte="" (ret)="" drive's="" lock="" status="" format="" of="" parameter="" block="" for="" function="" 52h:="" 00h="" byte="" (call)="" unused???="" (table="" 0788)="" (ret)="" 00h="" if="" flash/ata="" drive="" but="" no="" card="" inserted="" unchanged="" otherwise="" notes:="" the="" absense="" of="" a="" flash="" card="" should="" be="" tested="" by="" checking="" the="" dos="" error="" code="" rather="" than="" the="" returned="" byte="" the="" parameter="" byte="" is="" cleared="" to="" 00h="" erroneously="" by="" the="" award="" pcdisk.exe="" v1.02c="" pcmcia/ata="" driver="" if="" no="" ata="" card="" is="" inserted="" (bug="" corrected="" in="" pcdisk.exe="" v1.02h="" and="" later)="" not="" supported="" by="" the="" systemsoft="" atadrv.exe="" and="" the="" phoenix="" pcmata.sys="" pcmcia/ata="" drivers="" format="" of="" parameter="" block="" for="" function="" 68h:="" offset="" size="" description="" (table="" 0789)="" 00h="" byte="" 01h="" for="" default="" media="" type,="" 00h="" for="" any="" other="" media="" type="" (see="" also="" int="" 13/ah="20h" compaq")"="" 01h="" byte="" 02h="" for="" 720k,="" 07h="" for="" 1.44m,="" 09h="" for="" 2.88m="" format="" of="" parameter="" block="" for="" function="" 73h:="" offset="" size="" description="" (table="" 0790)="" 00h="" byte="" 00h="" ata="" card="" inserted="" 80h="" ata="" card="" not="" inserted="" 01h="" byte="" length="" of="" parameter="" block="" apparently="" always="" 40h="" 02h="" byte="" 00h="" ata="" card="" not="" inserted="" 0dh="" ata="" card="" inserted="" 03h="" 2="" bytes="" (apparently="" always="" 00h)="" 05h="" byte="" drive="" number="" (0="first)" 06h="" byte="" total="" number="" of="" drives="" 07h="" byte="" 00h="" ata="" card="" not="" inserted="" 01h="" ata="" card="" inserted="" 08h="" 17="" bytes="" 19h="" byte="" 00h="" ata="" card="" not="" inserted="" 01h="" ata="" card="" inserted="" 1ah="" byte="" (apparently="" always="" 01h)="" 1bh="" byte="" 00h="" ata="" card="" not="" inserted="" 01h="" ata="" card="" inserted="" 1ch="" 2="" bytes="" (apparently="" always="" 0015h)="" 1eh="" 2="" bytes="" 20h="" 2="" bytes="" (apparently="" always="" 0110h)="" 22h="" 15="" bytes="" 31h="" 2="" bytes="" (apparently="" always="" 7000h)="" 33h="" 11="" bytes="" driver="" signature="" "award="" pdisk"="" for="" award="" pcdisk.exe="" pcmcia/ata="" driver="" "ms-bios="" "="" for="" hp="" 200lx="" generic="" ata="" driver="" 3eh="" 2="" bytes="" notes:="" parameter="" structure="" possibly="" depends="" on="" driver="" this="" function="" is="" not="" supported="" by="" the="" systemsoft="" atadrv.exe="" and="" the="" phoenix="" pcmata.sys="" pcmcia/ata="" drivers="" format="" of="" parameter="" block="" for="" function="" 7fh="" for="" systemsoft="" atadrv.exe:="" offset="" size="" description="" (table="" 0791)="" 00h="" dword="" -=""> unknown location within driver
Note:	function supported by the SystemSoft ATADRV.EXE PCMCIA/ATA driver
	  but not by the Award PCDISK.EXE PCMCIA/ATA driver
SeeAlso: #0792

Format of parameter block for function 7Fh for Phoenix PCMATA.SYS:
Offset	Size	Description	(Table 0792)
 00h  8 BYTEs	???
Note:	this function supported by the Phoenix PCMATA.SYS PCMCIA/ATA driver
	  but not by the Award PCDISK.EXE PCMCIA/ATA driver
SeeAlso: #0791
--------D-21440E-----------------------------
INT 21 - DOS 3.2+ - IOCTL - GET LOGICAL DRIVE MAP
	AX = 440Eh
	BL = drive number (00h=default,01h=A:,etc)
Return: CF set on error
	    AX = error code (01h,0Fh) (see #0885 at AH=59h)
	CF clear if successful
	    AL = 00h block device has only one logical drive assigned
		 1..26 the last letter used to reference the drive (1=A:,etc)
Notes:	DR-DOS 3.41-5.0 DRIVER.SYS does not support drive mapping and thus
	  always returns AL=00h
	in addition to the normal operation, if Stacker is installed, this
	  call also sets the volume number at offset 58h in the Stacker
	  device driver (DR-DOS 3.41-5.0 only; use AX=4408h otherwise)
	  (see AX=4404h"Stacker",INT 25/AX=CDCDh)
SeeAlso: AX=4408h,AX=440Fh,INT 2F/AX=122Bh
--------D-21440F-----------------------------
INT 21 - DOS 3.2+ - IOCTL - SET LOGICAL DRIVE MAP
	AX = 440Fh
	BL = physical drive number (00h=default,01h=A:,etc))
Return: CF set on error
	    AX = error code (01h,0Fh) (see #0885 at AH=59h)
	CF clear if successful
	    drive now responds to next logical drive number
Notes:	maps logical drives to physical drives, similar to DOS's treatment of
	  a single physical floppy drive as both A: and B:
	DR-DOS 3.41-5.0 DRIVER.SYS does not support drive mapping and thus
	  always returns an error on this function
SeeAlso: AX=440Eh,INT 2F/AX=122Bh
--------D-214410-----------------------------
INT 21 - DOS 5+ - IOCTL - QUERY GENERIC IOCTL CAPABILITY (HANDLE)
	AX = 4410h
	BX = handle for device
	CH = category code (see #0765)
	CL = function code (see #0766)
Return: CF clear if successful
	    AX = 0000h	specified IOCTL function is supported
	CF set on error
	    AL = 01h	IOCTL capability not available
Note:	a program which wishes to use Generic IOCTL calls beyond those in the
	  standard DOS 3.2 set may use this call first to see whether a
	  particular call is supported
SeeAlso: AX=440Ch,AX=440Dh,AX=4411h
--------d-214410BXFFFF-----------------------
INT 21 U - NewSpace - ENABLE DRIVER
	AX = 4410h
	BX = FFFFh
Program: NewSpace is a TSR by Isogon Corporation which automatically compresses
	  all files as they are written and decompresses them as they are read
Note:	compressed files are not accessible unless the driver is enabled
SeeAlso: AX=4411h/BX=FFFFh
--------D-214411-----------------------------
INT 21 - DOS 5+ - IOCTL - QUERY GENERIC IOCTL CAPABILITY (DRIVE)
	AX = 4411h
	BL = drive number
	CH = category code (see #0778)
	CL = function code (see #0779)
Return: CF clear if successful
	    AX = 0000h	specified IOCTL function is supported
	CF set on error
	    AL = 01h	IOCTL capability not available
Note:	a program which wishes to use Generic IOCTL calls beyond those in the
	  standard DOS 3.2 set may use this call first to see whether a
	  particular call is supported
SeeAlso: AX=440Ch,AX=440Dh,AX=4410h
--------d-214411BXFFFF-----------------------
INT 21 U - NewSpace - DISABLE DRIVER
	AX = 4411h
	BX = FFFFh
Program: NewSpace is a TSR by Isogon Corporation which automatically compresses
	  all files as they are written and decompresses them as they are read
Note:	compressed files are not accessible unless the driver is enabled
SeeAlso: AX=4410h/BX=FFFFh
--------O-214412-----------------------------
INT 21 O - DR-DOS 5.0-6.0 - DETERMINE DOS TYPE
	AX = 4412h
	CF set
Return: CF set if not DR-DOS
		 AX = error code (see #0885 at AH=59h)
	CF clear if DR-DOS
	    DX = AX = version code (see #0794)
Note:	this obsolete call, which is no longer supported in Novell DOS 7, is
	  identical to AX=4452h
SeeAlso: AX=4452h
--------d-214412BXFFFF-----------------------
INT 21 U - NewSpace - INSTALLATION CHECK???
	AX = 4412h
	BX = FFFFh
Return: AX = PSP segment of NewRes (resident driver for NewSpace)
	BX:DX -> ???
	CX = ???
SeeAlso: AX=4411h/BX=FFFFh
--------d-214413BXFFFF-----------------------
INT 21 U - NewSpace - GET ???
	AX = 4413h
	BX = FFFFh
Return: AX = code segment of NewRes (resident driver for NewSpace)
	BX = offset of ???
SeeAlso: AX=4412h/BX=FFFFh
--------O-214414-----------------------------
INT 21 OU - DR-DOS 5.0-6.0 - SET GLOBAL PASSWORD
	AX = 4414h
	DS:DX -> password string (blank-padded to 8 characters)
Desc:	Specify the master password for accessing files.
Note:	this obsolete call, which is no longer supported in Novell DOS 7, is
	  identical to AX=4454h
SeeAlso: AX=4454h
--------d-214414BXFFFF-----------------------
INT 21 U - NewSpace - DEBUGGING DUMP
	AX = 4414h
	BX = FFFFh
Return: debugging dump written to X:\NEWSPACE.SMP
SeeAlso: AX=4413h/BX=FFFFh,AX=44FFh/BX=FFFFh
--------O-2144-------------------------------
INT 21 OU - DR-DOS 5.0-6.0 - HISTORY BUFFER, SHARE, AND HILOAD CONTROL
	AH = 44h
	AL = 16h to 18h
Note:	these obsolete subfunctions (which are no longer supported in Novell
	  DOS 7) are identical to AX=4456h through 4458h
SeeAlso: AX=4456h,AX=4457h,AX=4458h
--------O-214451-----------------------------
INT 21 - Concurrent DOS v3.2+ - INSTALLATION CHECK
	AX = 4451h
Return: CF set if not Concurrent DOS
		 AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AH = single-user/multiuser nature
		10h single-user
		    AL = operating system version ID (see #0794)
		14h multiuser
		    AL = operating system version ID (see #0793)
Notes:	as of Concurrent DOS/XM 5.0 (possibly earlier), the version is stored
	  in the environment variable VER
	use this function if you are looking for multiuser capabilities,
	  AX=4452h for single-user
	this function should never return the single-user values
SeeAlso: AX=4452h,AX=4459h

(Table 0793)
Values for Digital Research operating system version ID:
 32h	Concurrent PC DOS 3.2
 41h	Concurrent DOS 4.1
 50h	Concurrent DOS/XM 5.0 or Concurrent DOS/386 1.1
 60h	Concurrent DOS/XM 6.0 or Concurrent DOS/386 2.0
 62h	Concurrent DOS/XM 6.2 or Concurrent DOS/386 3.0
 66h	DR Multiuser DOS 5.1
 67h	Concurrent DOS 5.1
--------O-214452-----------------------------
INT 21 - DR-DOS 3.41+ - DETERMINE DOS TYPE/GET DR-DOS VERSION
	AX = 4452h ("DR")
	CF set
Return: CF set if not DR-DOS
	    AX = error code (see #0885 at AH=59h)
	CF clear if DR-DOS
	    AX = version code
	    AH = single-user/multiuser nature
		10h single-user
		    AL = operating system version ID (see #0794)
		14h multiuser
		    AL = operating system version ID (see #0793)
	    DX modified (see note)
Notes:	the DR-DOS version is stored in the environment variable VER
	use this function if looking for single-user capabilities, AX=4451h
	  if looking for multiuser; this call should never return multiuser
	  values
	in DR-DOS 3.41-6.0, DX=AX on return; for Novell DOS 7, DH=AH but DL=00h
	  (reportedly, DH=00h when booting NWDOS7 from installation disks)
	Novell DOS 7 returns error code 0001h if SETVER 255.x is in effect for
	  the calling program
SeeAlso: AX=4412h,AX=4451h,AX=4459h

(Table 0794)
Values for Digital Research operating system version ID:
 60h	DOS Plus
 63h	DR-DOS 3.41
 64h	DR-DOS 3.42
 65h	DR-DOS 5.00
 67h	DR-DOS 6.00
 70h	PalmDOS
 71h	DR-DOS 6.0 March 1993 "business update"
 72h	Novell DOS 7.0
--------O-214454-----------------------------
INT 21 U - DR-DOS 3.41+ - SET GLOBAL PASSWORD
	AX = 4454h
	DS:DX -> password string (blank-padded to 8 characters)
Desc:	Specify the master password for accessing files.
SeeAlso: AX=4303h,AX=4414h
--------O-214456-----------------------------
INT 21 U - DR-DOS 5.0+ - HISTORY BUFFER CONTROL
	AX = 4456h
	DL = control flags (see #0795)
Return: AL = previous value of state flags (see #0796)
Note:	DR-DOS 6.0 only checks bit 0 and ignores the rest of DL
SeeAlso: #0797

Bitfields for control flags:
Bit(s)	Description	(Table 0795)
 0	whose buffer: 0=application, 1=COMMAND.COM
---Novell DOS 7---
 1	toggle HISTORY usage
 2	toggle INSERT state 
Note:	only one bit at a time may be used

Bitfields for state flags:
Bit(s)	Description	(Table 0796)
 0	HISTORY buffer enabled
 1	INSERT enabled
 2-5	unused
 7	whose buffer: 0=application, 1=COMMAND.COM
--------O-214457-----------------------------
INT 21 U - DR-DOS 5.0+ - SHARE/HILOAD CONTROL
	AX = 4457h
	DH = subfunction
	    00h enable/disable SHARE
		DL = 00h disable
		   = 01h enable
			else Return: AX = ???
	    01h get HILOAD status
		Return: AX = status
			    0000h off
			    0001h on
	    02h set HILOAD status
		DL = new state (00h off, 01h on)
		Return: AX = ???
	    other
		Return: AX = ???
Note:	This was seen called by COMMAND.COM of DR-DOS 6.0; it does not seem
	  to be supported by Novell DOS 7
SeeAlso: AX=4457h/DX=FFFFh
--------O-214457DXFFFF-----------------------
INT 21 U - DR-DOS 6.0 - GET SHARE STATUS
	AX = 4457h
	DX = FFFFh
Return: AX = SHARE status
SeeAlso: INT 2F/AX=1000h
--------O-214458-----------------------------
INT 21 U - DR-DOS 5.0+ internal - GET POINTER TO INTERNAL VARIABLE TABLE
	AX = 4458h
Return: ES:BX -> internal variable table (see #0797,#0798)
	AX = ??? (0B50h for DR-DOS 5.0, 0A56h for DR-DOS 6.0, 0FE4h for
		  Novell DOS 7)
SeeAlso: AX=4452h

Format of DR-DOS 5.0-6.0 internal variable table:
Offset	Size	Description	(Table 0797)
 00h	WORD	???
 02h	WORD	segment of ???
 04h	WORD	offset within DOS data segment of history control structure
		  for COMMAND.COM history buffer (see #0799)
 06h	WORD	offset within DOS data segment of history control structure
		  for application history buffer (see #0799)
 08h	BYTE	initial history state flags (see #0796)
 09h  2 BYTEs	???
 0Bh	WORD	KB of extended memory at startup
 0Dh	BYTE	number of far jump entry points
 0Eh	WORD	segment containing far jumps to DR-DOS entry points (see #0800)
 10h	WORD	(only if kernel loaded in HMA) offset in HMA of first free HMA
		  memory block (see #0801) or 0000h if none; segment is FFFFh
 12h	WORD	pointer to segment of environment variables set in CONFIG,
		  or 0000h if already used
---DR-DOS 6.0---
 14h	WORD	(only if kernel loaded in HMA) offset in HMA of first used HMA
		memory block (see #0801) or 0000h if none; segment is FFFFh
 16h  8 BYTEs	???
 1Eh	WORD	offset in DOS data segment of full COUNTRY.SYS filename
 20h  8 BYTEs	???
 28h	WORD	offset in DOS data segment of SHARE hook table
 2Ah  2 BYTEs	???
 2Ch	WORD	offset in DOS data segment of far pointer to INT 2F/AX=1000h
		  handler
Note:	the segment used for the DR-DOS 6.0 CONFIG environment variables
	  (excluding COMSPEC, VER and OS) is only useful for programs/drivers
	  called from CONFIG.SYS. The word is set to zero later when the area
	  is copied to the COMMAND.COM environment space.  This allows
	  CONFIG.SYS to pass information to AUTOEXEC.BAT.

Format of Novell DOS 7 internal variable table:
Offset	Size	Description	(Table 0798)
 00h	???
 1Eh	WORD	offset of COUNTRY.SYS filename
 42h 16 DWORDs	pointers to ??? entry points
	???

Format of history control structure:
Offset	Size	Description	(Table 0799)
 00h	WORD	segment of buffer
 02h	WORD	size of buffer in bytes
 04h	WORD	???

Format of kernel entry jump table for DR-DOS 5.0-6.0:
Offset	Size	Description	(Table 0800)
 00h  5 BYTEs	far jump to kernel entry point for CP/M CALL 5
 05h  5 BYTEs	far jump to kernel entry point for INT 20
 0Ah  5 BYTEs	far jump to kernel entry point for INT 21
 0Fh  5 BYTEs	far jump to kernel entry point for INT 22 (RETF)
 14h  5 BYTEs	far jump to kernel entry point for INT 23 (RETF)
 19h  5 BYTEs	far jump to kernel entry point for INT 24
 1Eh  5 BYTEs	far jump to kernel entry point for INT 25
 23h  5 BYTEs	far jump to kernel entry point for INT 26
 28h  5 BYTEs	far jump to kernel entry point for INT 27
 2Dh  5 BYTEs	far jump to kernel entry point for INT 28
 32h  5 BYTEs	far jump to kernel entry point for INT 2A (IRET)
 37h  5 BYTEs	far jump to kernel entry point for INT 2B (IRET)
 3Ch  5 BYTEs	far jump to kernel entry point for INT 2C (IRET)
 41h  5 BYTEs	far jump to kernel entry point for INT 2D (IRET)
 46h  5 BYTEs	far jump to kernel entry point for INT 2E (IRET)
 4Bh  5 BYTEs	far jump to kernel entry point for INT 2F
Notes:	all of these entry points are indirected through this jump table
	  to allow the kernel to be relocated into high memory while leaving
	  the actual entry addresses in low memory for maximum compatibility
	some of these entry points (22h,23h,24h,2Eh,2Fh) are replaced as soon
	  as COMMAND.COM is loaded, and return immediately to the caller, some
	  returning an error code (the original handler for INT 2F returns
	  AL=03h [fail]).

Format of HMA Memory Block (DR-DOS 6.0 kernel loaded in HMA):
Offset	Size	Description	(Table 0801)
 00h	WORD	offset of next HMA Memory Block (0000h if last block)
 02h	WORD	size of this block in bytes (at least 10h)
 04h	BYTE	type of HMA Memory Block (interpreted by MEM)
		00h system
		01h KEYB
		02h NLSFUNC
		03h SHARE
		04h TaskMAX
		05h COMMAND
 05h	var	TSR (or system) code and data. DR-DOS TSR's, such as KEYB,
		  hooks interrupts using segment FFFEh instead FFFFh.
--------O-214459-----------------------------
INT 21 - DR MultiUser DOS 5.0 - API
	AX = 4459h
	CL = function (see #2602 at INT E0"CP/M")
	DS,DX = parameters
Notes:	DR-DOS 5.0 and Novell DOS 7 return CF set and AX=0001h
	this API is also available on INT E0
SeeAlso: AX=4452h,INT E0"CP/M"
--------N-2144E0-----------------------------
INT 21 U - Sun PC-NFS - API???
	AX = 44E0h
	DS:DX -> ???
	SS:BP -> stack frame (see #0802)
Return: ???
Note:	this function is also supported by Beame&Whiteside's BWPCNFS shim; the
	  description presented here was derived from that shim

Format of PC-NFS stack frame:
Offset	Size	Description	(Table 0802)
 00h	WORD	-> previous stack frame
 02h	DWORD	return address
--------d-2144FFBXFFFF-----------------------
INT 21 U - NewSpace - ???
	AX = 44FFh
	BX = FFFFh
	DX = ???
Program: NewSpace is a TSR by Isogon Corporation which automatically compresses
	  all files as they are written and decompresses them as they are read
SeeAlso: AX=4414h/BX=FFFFh
--------!---Section--------------------------
Interrupt List, part 5 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------D-2145-------------------------------
INT 21 - DOS 2+ - "DUP" - DUPLICATE FILE HANDLE
	AH = 45h
	BX = file handle
Return: CF clear if successful
	    AX = new handle
	CF set on error
	    AX = error code (04h,06h) (see #0885 at AH=59h)
Notes:	moving file pointer for either handle will also move it for the other,
	  because both will refer to the same system file table
	for DOS versions prior to 3.3, file writes may be forced to disk by
	  duplicating the file handle and closing the duplicate
SeeAlso: AH=3Dh,AH=46h
--------D-2146-------------------------------
INT 21 - DOS 2+ - "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE
	AH = 46h
	BX = file handle
	CX = file handle to become duplicate of first handle
Return: CF clear if successful
	CF set on error
	    AX = error code (04h,06h) (see #0885 at AH=59h)
Notes:	closes file with handle CX if it is still open
	DOS 3.30 hangs if BX=CX on entry
	moving file pointer for either handle will also move it for the other,
	  because both will refer to the same system file table
SeeAlso: AH=3Dh,AH=45h
--------D-2147-------------------------------
INT 21 - DOS 2+ - "CWD" - GET CURRENT DIRECTORY
	AH = 47h
	DL = drive number (00h = default, 01h = A:, etc)
	DS:SI -> 64-byte buffer for ASCIZ pathname
Return: CF clear if successful
	    AX = 0100h (undocumented)
	CF set on error
	    AX = error code (0Fh) (see #0885 at AH=59h)
Notes:	the returned path does not include a drive or the initial backslash
	many Microsoft products for Windows rely on AX being 0100h on success
	under the FlashTek X-32 DOS extender, the buffer pointer is in DS:ESI
SeeAlso: AH=19h,AH=3Bh,AH=71h,INT 15/AX=DE25h
--------D-2148-------------------------------
INT 21 - DOS 2+ - ALLOCATE MEMORY
	AH = 48h
	BX = number of paragraphs to allocate
Return: CF clear if successful
	    AX = segment of allocated block
	CF set on error
	    AX = error code (07h,08h) (see #0885 at AH=59h)
	    BX = size of largest available block
Notes:	DOS 2.1-6.0 coalesces free blocks while scanning for a block to
	  allocate
	.COM programs are initially allocated the largest available memory
	  block, and should free some memory with AH=49h before attempting any
	  allocations
	under the FlashTek X-32 DOS extender, EBX contains a protected-mode
	  near pointer to the allocated block on a successful return
SeeAlso: AH=49h,AH=4Ah,AH=58h,AH=83h
--------D-2149-------------------------------
INT 21 - DOS 2+ - FREE MEMORY
	AH = 49h
	ES = segment of block to free
Return: CF clear if successful
	CF set on error
	    AX = error code (07h,09h) (see #0885 at AH=59h)
Notes:	apparently never returns an error 07h, despite official docs; DOS 2.1+
	  code contains only an error 09h exit
	DOS 2.1-6.0 does not coalesce adjacent free blocks when a block is
	  freed, only when a block is allocated or resized
	the code for this function is identical in DOS 2.1-6.0 except for
	  calls to start/end a critical section in DOS 3+
SeeAlso: AH=48h,AH=4Ah
--------D-214A-------------------------------
INT 21 - DOS 2+ - RESIZE MEMORY BLOCK
	AH = 4Ah
	BX = new size in paragraphs
	ES = segment of block to resize
Return: CF clear if successful
	CF set on error
	    AX = error code (07h,08h,09h) (see #0885 at AH=59h)
	    BX = maximum paragraphs available for specified memory block
Notes:	under DOS 2.1-6.0, if there is insufficient memory to expand the block
	  as much as requested, the block will be made as large as possible
	DOS 2.1-6.0 coalesces any free blocks immediately following the block
	  to be resized
SeeAlso: AH=48h,AH=49h,AH=83h
--------v-214A--BX00B6-----------------------
INT 21 - VIRUS???
	AH = 4Ah
	BX = 00B6h
	ES = CX
Return: ???
Note:	this call is intercepted by the Search&Destroy SDRes v27.03 bundled
	  with Novell DOS 7, and is presumably some virus's installation check
SeeAlso: AH=0Eh/DL=ADh,AH=4Ah/BX=FFFFh,AH=D2h"VIRUS"
--------v-214A--BXFFFF-----------------------
INT 21 - VIRUS???
	AH = 4Ah
	BX = FFFFh
	CX = 0568h
	SI = 0129h
	DI = 0000h
	ES = BP
Return: ???
Note:	this call is intercepted by the Search&Destroy SDRes v27.03 bundled
	  with Novell DOS 7, and is presumably some virus's installation check
SeeAlso: AH=0Eh/DL=ADh,AH=4Ah/BX=00B6h
--------D-214B-------------------------------
INT 21 - DOS 2+ - "EXEC" - LOAD AND/OR EXECUTE PROGRAM
	AH = 4Bh
	AL = type of load
		 00h load and execute
	    01h load but do not execute
	    03h load overlay (see #0804)
	    04h load and execute in background (European MS-DOS 4.0 only)
		"Exec & Go" (see also AH=80h)
	DS:DX -> ASCIZ program name (must include extension)
	ES:BX -> parameter block (see #0803,#0804,#0805)
	CX = mode (subfunction 04h only)
		0000h child placed in zombie mode after termination
		0001h child's return code discarded on termination
Return: CF clear if successful
	    BX,DX destroyed
	    if subfunction 01h, process ID set to new program's PSP; get with
		INT 21/AH=62h
	CF set on error
	    AX = error code (01h,02h,05h,08h,0Ah,0Bh) (see #0885 at AH=59h)
Notes:	DOS 2.x destroys all registers, including SS:SP
	under ROM-based DOS, if no disk path characters (colons or slashes)
	  are included in the program name, the name is searched for in the
	  ROM module headers (see #0808) before searching on disk
	for functions 00h and 01h, the calling process must ensure that there
	  is enough unallocated memory available; if necessary, by releasing
	  memory with AH=49h or AH=4Ah
	for function 01h, the AX value to be passed to the child program is put
	  on top of the child's stack
	for function 03h, DOS assumes that the overlay is being loaded into
	  memory allocated by the caller
	function 01h was undocumented prior to the release of DOS 5.0
	some versions (such as DR-DOS 6.0) check the parameters and parameter
	  block and return an error if an invalid value (such as an offset of
	  FFFFh) is found
	background programs under European MS-DOS 4.0 must use the new
	  executable format
	this function ignores the filename extension, instead checking the
	  first two bytes of the file to determine whether there is a valid
	  .EXE header (see #0807); if not, the file is assumed to be in .COM
	  format.  If present, the file may be in any of several formats which
	  are extensions of the original .EXE format (see #0806)
	.COM-format executables begin running with the following register
	  values:
		AL = 00h if first FCB has valid drive letter, FFh if not
		AH = 00h if second FCB has valid drive letter, FFh if not
		CS,DS,ES,SS = PSP segment
		SP = offset of last word available in first 64K segment
		(note: AX is always 0000h under DESQview)
	old-format executables begin running with the following register
	  values:
		AL = 00h if first FCB has valid drive letter, FFh if not
		AH = 00h if second FCB has valid drive letter, FFh if not
		DS,ES = PSP segment
		SS:SP as defined in .EXE header
		(note: AX is always 0000h under DESQview)
	new executables begin running with the following register values
		AX = environment segment
		BX = offset of command tail in environment segment
		CX = size of automatic data segment (0000h = 64K)
		ES,BP = 0000h
		DS = automatic data segment
		SS:SP = initial stack
	  the command tail corresponds to an old executable's PSP:0081h and
	  following, except that the 0Dh is turned into a NUL (00h); new
	  format executables have no PSP
	under the FlashTek X-32 DOS extender, only function 00h is supported
	  and the pointers are passed in DS:EDX and ES:EBX
	DR-DOS 6 always loads .EXE-format programs with no fixups and 
	  .COM-format programs starting with 9Ch 55h (PUSHF/PUSH BP) above the
	  64K mark to avoid the EXEPACK bug, by extending the memory block
	  containing the program's environment; this code is disabled if the
	  name of the parent program as stored in the MCB is 'WIN'.
BUGS:	DOS 2.00 assumes that DS points at the current program's PSP
	Load Overlay (subfunction 03h) loads up to 512 bytes too many if the
	  file contains additional data after the actual overlay
SeeAlso: AX=4B05h,AH=4Ch,AH=4Dh,AH=64h"OS/2",AH=8Ah,INT 2E,INT 60/DI=0604h

Format of EXEC parameter block for AL=00h,01h,04h:
Offset	Size	Description	(Table 0803)
 00h	WORD	segment of environment to copy for child process (copy caller's
		  environment if 0000h)
 02h	DWORD	pointer to command tail to be copied into child's PSP
 06h	DWORD	pointer to first FCB to be copied into child's PSP
 0Ah	DWORD	pointer to second FCB to be copied into child's PSP
 0Eh	DWORD	(AL=01h) will hold subprogram's initial SS:SP on return
 12h	DWORD	(AL=01h) will hold entry point (CS:IP) on return
SeeAlso: #0804,#0805

Format of EXEC parameter block for AL=03h:
Offset	Size	Description	(Table 0804)
 00h	WORD	segment at which to load overlay
 02h	WORD	relocation factor to apply to overlay if in .EXE format
SeeAlso: #0803,#0805

Format of EXEC parameter block for FlashTek X-32:
Offset	Size	Description	(Table 0805)
 00h	PWORD	48-bit far pointer to environment string
 06h	PWORD	48-bit far pointer to command tail string
SeeAlso: #0803,#0804

(Table 0806)
Values for the executable types understood by various environments:
 MZ	old-style DOS executable (see #0807)
 NE	Windows or OS/2 1.x segmented ("new") executable (see #0809)
 LE	Windows virtual device driver (VxD) linear executable (see #0822)
 LX	variant of LE used in OS/2 2.x (see #0822)
 W3	Windows WIN386.EXE file; a collection of LE files
 PE	Win32 (Windows NT and Win32s) portable executable based on Unix COFF
 DL	HP 100LX/200LX system manager compliant executable (.EXM)
 MP	old PharLap .EXP (see #0832)
 P2	PharLap 286 .EXP (see #0833)
 P3	PharLap 386 .EXP (see #0833)

Format of .EXE file header:
Offset	Size	Description	(Table 0807)
 00h  2 BYTEs	.EXE signature, either "MZ" or "ZM" (5A4Dh or 4D5Ah)
		  (see also #0806)
 02h	WORD	number of bytes in last 512-byte page of executable
 04h	WORD	total number of 512-byte pages in executable (includes any
		partial last page)
 06h	WORD	number of relocation entries
 08h	WORD	header size in paragraphs
 0Ah	WORD	minimum paragraphs of memory to allocation in addition to
		executable's size
 0Ch	WORD	maximum paragraphs to allocate in addition to executable's size
 0Eh	WORD	initial SS relative to start of executable
 10h	WORD	initial SP
 12h	WORD	checksum (one's complement of sum of all words in executable)
 14h	DWORD	initial CS:IP relative to start of executable
 18h	WORD	offset within header of relocation table
		40h or greater for new-format (NE,LE,LX,W3,PE,etc.) executable
 1Ah	WORD	overlay number (normally 0000h = main program)
---new executable---
 1Ch  4 BYTEs	???
 20h	WORD	behavior bits
 22h 26 BYTEs	reserved for additional behavior info
 3Ch	DWORD	offset of new executable (NE,LE,etc) header within disk file,
		or 00000000h if plain MZ executable
---Borland TLINK---
 1Ch  2 BYTEs	??? (apparently always 01h 00h)
 1Eh	BYTE	signature FBh
 1Fh	BYTE	TLINK version (major in high nybble, minor in low nybble)
 20h  2 BYTEs	??? (v2.0 apparently always 72h 6Ah, v3.0+ seems always 6Ah 72h)
---ARJ self-extracting archive---
 1Ch  4 BYTEs	signature "RJSX" (older versions, new signature is "aRJsfX" in
		the first 1000 bytes of the file)
---LZEXE 0.90 compressed executable---
 1Ch  4 BYTEs	signature "LZ09"
---LZEXE 0.91 compressed executable---
 1Ch  4 BYTEs	signature "LZ91"
---PKLITE compressed executable---
 1Ch	BYTE	minor version number
 1Dh	BYTE	bits 0-3: major version
		bit 4: extra compression
		bit 5: huge (multi-segment) file
 1Eh  6 BYTEs	signature "PKLITE" (followed by copyright message)
---LHarc 1.x self-extracting archive---
 1Ch  4 BYTEs	unused???
 20h  3 BYTEs	jump to start of extraction code
 23h  2 BYTEs	???
 25h 12 BYTEs	signature "LHarc's SFX "
---LHA 2.x self-extracting archive---
 1Ch  8 BYTEs	???
 24h 10 BYTEs	signature "LHa's SFX " (v2.10) or "LHA's SFX " (v2.13)
---TopSpeed C 3.0 CRUNCH compressed file---
 1Ch	DWORD	018A0001h
 20h	WORD	1565h
---PKARCK 3.5 self-extracting archive---
 1Ch	DWORD	00020001h
 20h	WORD	0700h
---BSA (Soviet archiver) self-extracting archive---
 1Ch	WORD	000Fh
 1Eh	BYTE	A7h
---LARC self-extracting archive---
 1Ch  4 BYTEs	???
 20h 11 BYTEs	"SFX by LARC "
---LH self-extracting archive---
 1Ch  8 BYTEs	???
 24h  8 BYTEs	"LH's SFX "
---other linkers---
 1Ch	var	optional information
---
  N   N DWORDs	relocation items
Notes:	if word at offset 02h is 4, it should be treated as 00h, since pre-1.10
	  versions of the MS linker set it that way
	if both minimum and maximum allocation (offset 0Ah/0Ch) are zero, the
	  program is loaded as high in memory as possible (DOS only checks
	  the maximum allocation, however)
	the maximum allocation is set to FFFFh by default
	additional data may be contained in the file beyond the end of the
	  load image described by the .EXE header; this data may be overlays,
	  the actual executable for newer-format executables, or debugging
	  information (see #0813,#0837)

Format of ROM Module Header:
Offset	Size	Description	(Table 0808)
 00h  2 BYTEs	ROM signature 55h, AAh
 02h	BYTE	size of ROM in 512-byte blocks
 03h  3 BYTEs	POST initialization entry point (near JMP instruction)
 06h	ROM Program Name List [array]
	Offset	Size	Description
	 00h	BYTE	length of ROM program's name (00h if end of name list)
	 01h  N BYTEs	program name
	 N+1  3 BYTEs	program entry point (near JMP instruction)

Format of new executable header:
Offset	Size	Description	(Table 0809)
 00h  2 BYTEs	"NE" (4Eh 45h) signature
 02h  2 BYTEs	linker version (major, then minor)
 04h	WORD	offset from start of this header to entry table (see #0816)
 06h	WORD	length of entry table in bytes
 08h	DWORD	file load CRC (0 in Borland's TPW)
 0Ch	BYTE	program flags (see #0810)
 0Dh	BYTE	application flags (see #0811)
 0Eh	WORD	auto data segment index
 10h	WORD	initial local heap size
 12h	WORD	initial stack size (added to data seg, 0000h if SS <> DS)
 14h	DWORD	program entry point (CS:IP), "CS" is index into segment table
 18h	DWORD	initial stack pointer (SS:SP), "SS" is segment index
		if SS=automatic data segment and SP=0000h, the stack pointer is
		  set to the top of the automatic data segment, just below the
		  local heap
 1Ch	WORD	segment count
 1Eh	WORD	module reference count
 20h	WORD	length of nonresident names table in bytes
 22h	WORD	offset from start of this header to segment table (see #0814)
 24h	WORD	offset from start of this header to resource table
 26h	WORD	offset from start of this header to resident names table
 28h	WORD	offset from start of this header to module reference table
 2Ah	WORD	offset from start of this header to imported names table
		(array of counted strings, terminated with a string of length
		  00h)
 2Ch	DWORD	offset from start of file to nonresident names table
 30h	WORD	count of moveable entry point listed in entry table
 32h	WORD	file alignment size shift count
		0 is equivalent to 9 (default 512-byte pages)
 34h	WORD	number of resource table entries
 36h	BYTE	target operating system
		00h unknown
		01h OS/2
		02h Windows
		03h European MS-DOS 4.x
		04h Windows 386
		05h BOSS (Borland Operating System Services)
		81h PharLap 286|DOS-Extender, OS/2
		82h PharLap 286|DOS-Extender, Windows
 37h	BYTE	other EXE flags (see #0812)
 38h	WORD	offset to return thunks or start of gangload area
 3Ah	WORD	offset to segment reference thunks or length of gangload area
 3Ch	WORD	minimum code swap area size
 3Eh  2 BYTEs	expected Windows version (minor version first)
Note:	this header is documented in detail in the Windows 3.1 SDK Programmer's
	  Reference, Vol 4.

Bitfields for new executable program flags:
Bit(s)	Description	(Table 0810)
 0-1	DGROUP type
	  0 = none
	  1 = single shared
	  2 = multiple (unshared)
	  3 = (null)
 2	global initialization
 3	protected mode only
 4	8086 instructions
 5	80286 instructions
 6	80386 instructions
 7	80x87 instructions

Bitfields for new executable application flags:
Bit(s)	Description	(Table 0811)
 0-2	application type
	001 full screen (not aware of Windows/P.M. API)
	010 compatible with Windows/P.M. API
	011 uses Windows/P.M. API
 3	is a Family Application (OS/2)
 5	0=executable, 1=errors in image
 6	non-conforming program (valid stack is not maintained)
 7	DLL or driver rather than application
	(SS:SP info invalid, CS:IP points at FAR init routine called with
	  AX=module handle which returns AX=0000h on failure, AX nonzero on
	  successful initialization)

Bitfields for other new .EXE flags:
Bit(s)	Description	(Table 0812)
 0	supports long filenames
 1	2.X protected mode
 2	2.X proportional font
 3	gangload area

Format of Codeview trailer (at end of executable):
Offset	Size	Description	(Table 0813)
 00h	WORD	signature 4E42h ('NB')
 02h	WORD	Microsoft debug info version number
 04h	DWORD	Codeview header offset
SeeAlso: #0837

Format of new executable segment table record:
Offset	Size	Description	(Table 0814)
 00h	WORD	offset in file (shift left by alignment shift to get byte offs)
 02h	WORD	length of image in file (0000h = 64K)
 04h	WORD	segment attributes (see #0815)
 06h	WORD	number of bytes to allocate for segment (0000h = 64K)
Note:	the first segment table entry is entry number 1
SeeAlso: #0817

Bitfields for segment attributes:
Bit(s)	Description	(Table 0815)
 0	data segment rather than code segment
 1	unused???
 2	real mode
 3	iterated
 4	movable
 5	sharable
 6	preloaded rather than demand-loaded
 7	execute-only (code) or read-only (data)
 8	relocations (directly following code for this segment)
 9	debug info present
 10,11	80286 DPL bits
 12	discardable
 13-15	discard priority

Format of new executable entry table item (list):
Offset	Size	Description	(Table 0816)
 00h	BYTE	number of entry points (00h if end of entry table list)
 01h	BYTE	segment number (00h if end of entry table list)
 02h 3N BYTEs	entry records
		Offset	Size	Description
		 00h	BYTE	flags
				bit 0: exported
				bit 1: single data
				bits 2-7: unused???
		 01h	WORD	offset within segment

Format of new executable relocation data (immediately follows segment image):
Offset	Size	Description	(Table 0817)
 00h	WORD	number of relocation items
 02h 8N BYTEs	relocation items
		Offset	Size	Description
		 00h	BYTE	relocation type
				00h LOBYTE
				02h BASE
				03h PTR
				05h OFFS
				0Bh PTR48
				0Dh OFFS32
		 01h	BYTE	flags
				bit 2: additive
		 02h	WORD	offset within segment
		 04h	WORD	target address segment
		 06h	WORD	target address offset
SeeAlso: #0814,#0818

Format of new executable resource data:
Offset	Size	Description	(Table 0818)
 00h	WORD	alignment shift count for resource data
 02h  N RECORDs resources
	Format of resource record:
	Offset	Size	Description
	 00h	WORD	type ID
			0000h if end of resource records
			>= 8000h if integer type
			else offset from start of resource table to type string
	 02h	WORD	number of resources of this type
	 04h	DWORD	reserved for runtime use
	 08h  N Resources (see #0819)
Note:	resource type and name strings are stored immediately following the
	  resource table, and are not null-terminated
SeeAlso: #0819

Format of new executable resource entry:
Offset	Size	Description	(Table 0819)
 00h	WORD	offset in alignment units from start of file to contents of
		the resource data
 02h	WORD	length of resource image in bytes
 04h	WORD	flags
		bit 4: moveable
		bit 5: shareable
		bit 6: preloaded
 06h	WORD	resource ID
		>= 8000h if integer resource
		else offset from start of resource table to resource string
 08h	DWORD	reserved for runtime use
Notes:	resource type and name strings are stored immediately following the
	  resource table, and are not null-terminated
	strings are counted strings, with a string of length 0 indicating the
	  end of the resource table
SeeAlso: #0818,#0820

Format of new executable module reference table [one bundle of entries]:
Offset	Size	Description	(Table 0820)
 00h	BYTE	number of records in this bundle (00h if end of table)
 01h	BYTE	segment indicator
		00h unused
		FFh movable segment, segment number is in entry
		else segment number of fixed segment
 02h  N RECORDs
	Format of segment record
	Offset	Size	Description
	 00h	BYTE	flags
			bit 0: entry is exported
			bit 1: entry uses global (shared) data
			bits 7-3: number of parameter words
	---fixed segment---
	 01h	WORD	offset
	---moveable segment---
	 01h  2 BYTEs	INT 3F instruction (CDh 3Fh)
	 03h	BYTE	segment number
	 05h	WORD	offset
Note:	table entries are numbered starting from 1
SeeAlso: #0821

Format of new executable resident/nonresident name table entry:
Offset	Size	Description	(Table 0821)
 00h	BYTE	length of string (00h if end of table)
 01h  N BYTEs	ASCII text of string
 N+1	WORD	ordinal number (index into entry table)
Notes:	the first string in the resident name table is the module name; the
	  first entry in the nonresident name table is the module description
	the strings are case-sensitive; if the executable was linked with
	  /IGNORECASE, all strings are in uppercase
SeeAlso: #0820

Format of Linear Executable (enhanced mode executable) header:
Offset	Size	Description	(Table 0822)
 00h  2 BYTEs	"LE" (4Ch 45h) signature (Windows)
		"LX" (4Ch 58h) signature (OS/2)
 02h	BYTE	byte order (00h = little-endian, nonzero = big-endian)
 03h	BYTE	word order (00h = little-endian, nonzero = big-endian)
 04h	DWORD	executable format level
 08h	WORD	CPU type (see also INT 15/AH=C9h)
		01h Intel 80286 or upwardly compatible
		02h Intel 80386 or upwardly compatible
		03h Intel 80486 or upwardly compatible
		04h Intel Pentium (80586) or upwardly compatible
		20h Intel i860 (N10) or compatible
		21h Intel "N11" or compatible
		40h MIPS Mark I (R2000, R3000) or compatible
		41h MIPS Mark II (R6000) or compatible
		42h MIPS Mark III (R4000) or compatible
 0Ah	WORD	target operating system
		01h OS/2
		02h Windows
		03h European DOS 4.0
		04h Windows 386
 0Ch	DWORD	module version
 10h	DWORD	module type (see #0823)
 14h	DWORD	number of memory pages
 18h	Initial CS:EIP
	DWORD	object number
	DWORD	offset
 20h	Initial SS:ESP
	DWORD	object number
	DWORD	offset
 28h	DWORD	memory page size
 2Ch	DWORD	(Windows LE) bytes on last page
		(OS/2 LX) page offset shift count
 30h	DWORD	fixup section size
 34h	DWORD	fixup section checksum
 38h	DWORD	loader section size
 3Ch	DWORD	loader section checksum
 40h	DWORD	offset of object table (see #0824)
 44h	DWORD	object table entries
 48h	DWORD	object page map table offset (see #0826)
 4Ch	DWORD	object iterate data map offset
 50h	DWORD	resource table offset
 54h	DWORD	resource table entries
 58h	DWORD	resident names table offset (see #0827)
 5Ch	DWORD	entry table offset (see #0828,#0829)
 60h	DWORD	module directives table offset
 64h	DWORD	Module Directives entries
 68h	DWORD	Fixup page table offset
 6Ch	DWORD	Fixup record table offset (see #0831)
 70h	DWORD	imported modules name table offset
 74h	DWORD	imported modules count
 78h	DWORD	imported procedures name table offset
 7Ch	DWORD	per-page checksum table offset
 80h	DWORD	data pages offset
 84h	DWORD	preload page count
 88h	DWORD	non-resident names table offset
 8Ch	DWORD	non-resident names table length
 90h	DWORD	non-resident names checksum
 94h	DWORD	automatic data object
 98h	DWORD	debug information offset
 9Ch	DWORD	debug information length
 A0h	DWORD	preload instance pages number
 A4h	DWORD	demand instance pages number
 A8h	DWORD	extra heap allocation
 ACh 12 BYTEs	reserved
 B8h	DWORD	offset of VERSIONINFO resource (MS-Windows VxD only)
 BCh	DWORD	pointer to ??? (dynamically-loadable VxDs only???)
 C0h	WORD	device ID (MS-Windows VxD only)
 C2h	WORD	DDK version (MS-Windows VxD only)
Note:	used by EMM386.EXE, QEMM, and Windows 3.0 Enhanced Mode drivers

Bitfields for Linear Executable module type:
Bit(s)	Description	(Table 0823)
 2	initialization (only for DLLs) 0 = global, 1 = per-process
 4	no internal fixups in executable image
 5	no external fixups in executable image
 8-10	API compatibility
	0 = unknown
	1 = incompatible with PM windowing \
	2 = compatible with PM windowing    > (only for
	3 = uses PM windowing API	   /	programs)
 13	module not loadable (only for programs)
 15-17	module type
	000 program
	001 library (DLL)
	011 protected memory library module
	100 physical device driver
	110 virtual device driver
 30	per-process library termination
	(requires valid CS:EIP, can't be set for .EXE)

Format of object table entry:
Offset	Size	Description	(Table 0824)
 00h	DWORD	virtual size in bytes
 04h	DWORD	relocation base address
 08h	DWORD	object flags (see #0825)
 0Ch	DWORD	page map index
 10h	DWORD	page map entries (see #0826)
 14h  4 BYTEs	reserved??? (apparently always zeros)

Bitfields for object flags:
Bit(s)	Description	(Table 0825)
 0	readable
 1	writable
 2	executable
 3	resource
 4	discardable
 5	shared
 6	preloaded
 7	invalid
 8-9	type
	00 normal
	01 zero-filled
	10 resident
	11 resident and contiguous
 10	resident and long-lockable
 11	reserved
 12	16:16 alias required
 13	"BIG" (Huge: 32-bit)
 14	conforming
 15	"OBJECT_I/O_PRIVILEGE_LEVEL"
 16-31	reserved

Format of object page map table entry:
Offset	Size	Description	(Table 0826)
 00h	BYTE	??? (usually 00h)
 01h	WORD	(big-endian) index to fixup table
		0000h if no relocation info
 03h	BYTE	type (00h hard copy in file, 03h some relocation needed)

Format of resident names table entry:
Offset	Size	Description	(Table 0827)
 00h	BYTE	length of name
 01h  N BYTEs	name
 N+1  3 BYTEs	???

Format of LE linear executable entry table:
Offset	Size	Description	(Table 0828)
 00h	BYTE	number of entries in table
 01h 10 BYTEs per entry
		Offset	Size	Description
		 00h	BYTE	bit flags
				bit 0: non-empty bundle
				bit 1: 32-bit entry
		 01h	WORD	object number
		 03h	BYTE	entry type flags
				bit 0: exported
				bit 1: uses single data rather than instance
				bit 2: reserved
				bits 3-7: number of stack parameters
		 04h	DWORD	offset of entry point
		 08h  2 BYTEs	???
Note:	empty bundles (bit flags at 00h = 00h) are used to skip unused indices,
	  and do not contain the remaining nine bytes

Format of LX linear executable entry table [array]:
Offset	Size	Description	(Table 0829)
 00h	BYTE	number of bundles following (00h = end of entry table)
 01h	BYTE	bundle type
		00h empty
		01h 16-bit entry
		02h 286 callgate entry
		03h 32-bit entry
		04h forwarder entry
		bit 7 set if additional parameter typing information is present
---bundle type 00h---
 no additional fields
---bundle type 01h---
 02h	WORD	object number
 04h	BYTE	entry flags
		bit 0: exported
		bits 7-3: number of stack parameters
 05h	WORD	offset of entry point in object (shifted by page size shift)
---bundle type 02h---
 02h	WORD	object number
 04h	BYTE	entry flags
		bit 0: exported
		bits 7-3: number of stack parameters
 05h	WORD	offset of entry point in object
 07h	WORD	reserved for callgate selector (used by loader)
---bundle type 03h---
 02h	WORD	object number
 04h	BYTE	entry flags
		bit 0: exported
		bits 7-3: number of stack parameters
 05h	DWORD	offset of entry point in object
---bundle type 04h---
 02h	WORD	reserved
 04h	BYTE	forwarder flags
		bit 0: import by ordinal
		bits 7-1 reserved
 05h	WORD	module ordinal
		(forwarder's index into Import Module Name table)
 07h	DWORD	procedure name offset or import ordinal number
Note:	all fields after the first two bytes are repeated N times

Bitfields for linear executable fixup type:
Bit(s)	Description	(Table 0830)
 7	ordinal is BYTE rather than WORD
 6	16-rather than 8-object number/module ordinal
 5	addition with DWORD rather than WORD
 4	relocation info has size with new two bytes at end
 3	reserved (0)
 2	set if add to destination, clear to replace destination
 1-0	type
	00 internal fixup
	01 external fixup, imported by ordinal
	10 external fixup, imported by name
	11 internal fixup via entry table

Format of linear executable fixup record:
Offset	Size	Description	(Table 0831)
 00h	BYTE	type
		bits 7-4: modifier (0001 single, 0011 multiple)
		bits 3-0: type
			0000 byte offset
			0010 word segment
			0011 16-bit far pointer (DWORD)
			0101 16-bit offset
			0110 32-bit far pointer (PWORD)
			0111 32-bit offset
			1000 near call or jump, WORD/DWORD based on seg attrib
 01h	BYTE	linear executable fixup type (see #0830)
---if single type---
 02h	WORD	offset within page
 04h	relocation information
	---internal fixup---
	BYTE	object number
	---external,ordinal---
	BYTE	one-based module number in Import Module table
	BYTE/WORD ordinal number
	WORD/DWORD value to add (only present if modifier bit 4 set)
	---external,name---
	BYTE	one-based module number in Import Module table
	WORD	offset in Import Procedure names
	WORD/DWORD value to add (only present if modifier bit 4 set)
---if multiple type---
 02h	BYTE	number of items
 03h	var	relocation info as for "single" type (see above)
      N WORDs	offsets of items to relocate

Format of old Phar Lap .EXP file header:
Offset	Size	Description	(Table 0832)
 00h  2 BYTEs	"MP" (4Dh 50h) signature
 02h	WORD	remainder of image size / page size (page size = 512h)
 04h	WORD	size of image in pages
 06h	WORD	number of relocation items
 08h	WORD	header size in paragraphs
 0Ah	WORD	minimum number of extra 4K pages to be allocated at the end
		  of program, when it is loaded
 0Ch	WORD	maximum number of extra 4K pages to be allocated at the end
		  of program, when it is loaded
 0Eh	DWORD	initial ESP
 12h	WORD	word checksum of file
 14h	DWORD	initial EIP
 18h	WORD	offset of first relocation item
 1Ah	WORD	overlay number
 1Ch	WORD	??? (wants to be 1)
SeeAlso: #0833

Format of new Phar Lap .EXP file header:
Offset	Size	Description	(Table 0833)
 00h  2 BYTEs	signature ("P2" for 286 .EXP executable, "P3" for 386 .EXP)
 02h	WORD	level (01h flat-model file, 02h multisegmented file)
 04h	WORD	header size
 06h	DWORD	file size in bytes
 0Ah	WORD	checksum
 0Ch	DWORD	offset of run-time parameters within file (see #0835)
 10h	DWORD	size of run-time parameters in bytes
 14h	DWORD	offset of relocation table within file
 18h	DWORD	size of relocation table in bytes
 1Ch	DWORD	offset of segment information table within file (see #0834)
 20h	DWORD	size of segment information table in bytes
 24h	WORD	size of segment information table entry in bytes
 26h	DWORD	offset of load image within file
 2Ah	DWORD	size of load image on disk
 2Eh	DWORD	offset of symbol table within file
 32h	DWORD	size of symbol table in bytes
 36h	DWORD	offset of GDT within load image
 3Ah	DWORD	size of GDT in bytes
 3Eh	DWORD	offset of LDT within load image
 42h	DWORD	size of LDT in bytes
 46h	DWORD	offset of IDT within load image
 4Ah	DWORD	size of IDT in bytes
 4Eh	DWORD	offset of TSS within load image
 52h	DWORD	size of TSS in bytes
 56h	DWORD	minimum number of extra bytes to be allocated at end of program
		(level 1 executables only)
 5Ah	DWORD	maximum number of extra bytes to be allocated at end of program
		(level 1 executables only)
 5Eh	DWORD	base load offset (level 1 executables only)
 62h	DWORD	initial ESP
 66h	WORD	initial SS
 68h	DWORD	initial EIP
 6Ch	WORD	initial CS
 6Eh	WORD	initial LDT
 70h	WORD	initial TSS
 72h	WORD	flags
		bit 0: load image is packed
		bit 1: 32-bit checksum is present
		bits 4-2: type of relocation table
 74h	DWORD	memory requirements for load image
 78h	DWORD	32-bit checksum (optional)
 7Ch	DWORD	size of stack segment in bytes
 80h 256 BYTEs	reserved (0)
SeeAlso: #0832,#0836

Format of Phar Lap segment information table entry:
Offset	Size	Description	(Table 0834)
 00h	WORD	selector number
 02h	WORD	flags
 04h	DWORD	base offset of selector
 08h	DWORD	minimum number of extra bytes to be allocated to the segment

Format of 386|DOS-Extender run-time parameters:
Offset	Size	Description	(Table 0835)
 00h  2 BYTEs	signature "DX" (44h 58h)
 02h	WORD	minimum number of real-mode params to leave free at run time
 04h	WORD	maximum number of real-mode params to leave free at run time
 06h	WORD	minimum interrupt buffer size in KB
 08h	WORD	maximum interrupt buffer size in KB
 0Ah	WORD	number of interrupt stacks
 0Ch	WORD	size in KB of each interrupt stack
 0Eh	DWORD	offset of byte past end of real-mode code and data
 12h	WORD	size in KB of call buffers
 14h	WORD	flags
		bit 0: file is virtual memory manager
		bit 1: file is a debugger
 16h	WORD	unprivileged flag (if nonzero, executes at ring 1, 2, or 3)
 18h 104 BYTEs	reserved (0)

Format of Phar Lap repeat block header:
Offset	Size	Description	(Table 0836)
 00h	WORD	byte count
 02h	BYTE	repeat string length

Format of Borland debugging information header (following load image):
Offset	Size	Description	(Table 0837)
 00h	WORD	signature 52FBh
 02h	WORD	version ID
 04h	DWORD	size of name pool in bytes
 08h	WORD	number of names in name pool
 0Ah	WORD	number of type entries
 0Ch	WORD	number of structure members
 0Eh	WORD	number of symbols
 10h	WORD	number of global symbols
 12h	WORD	number of modules
 14h	WORD	number of locals (optional)
 16h	WORD	number of scopes in table
 18h	WORD	number of line-number entries
 1Ah	WORD	number of include files
 1Ch	WORD	number of segment records
 1Eh	WORD	number of segment/file correlations
 20h	DWORD	size of load image after removing uninitialized data and debug
		  information
 24h	DWORD	debugger hook; pointer into debugged program whose meaning
		  depends on program flags
 28h	BYTE	program flags
		bit 0: case-sensitive link
		bit 1: pascal overlay program
 29h	WORD	no longer used
 2Bh	WORD	size of data pool in bytes
 2Dh	BYTE	padding
 2Eh	WORD	size of following header extension (currently 00h, 10h, or 20h)
 30h	WORD	number of classes
 32h	WORD	number of parents
 34h	WORD	number of global classes (currently unused)
 36h	WORD	number of overloads (currently unused)
 38h	WORD	number of scope classes
 3Ah	WORD	number of module classes
 3Ch	WORD	number of coverage offsets
 3Eh	DWORD	offset relative to symbol base of name pool
 42h	WORD	number of browser information records
 44h	WORD	number of optimized symbol records
 46h	WORD	debugging flags
 48h  8 BYTEs	padding
Note:	additional information on the Borland debugging info may be found in
	  Borland's Open Architecture Handbook
SeeAlso: #0813
--------U-214B-------------------------------
INT 21 - ELRES v1.0 only - INSTALLATION CHECK
	AH = 4Bh
	DS:DX = 0000h:0000h
Return: ES:BX -> ELRES history structure (see #0606 at AH=2Bh/CX=454Ch)
	DX = DABEh (signature, DAve BEnnett)
Program: ELRES is an MS-DOS return code (errorlevel) recorder by David H.
	  Bennett
SeeAlso: AH=2Bh/CX=454Ch
--------v-214B04-----------------------------
INT 21 - VIRUS - "MG", "699"/"Thirteen Minutes" - INSTALLATION CHECK
	AX = 4B04h
Return: CF clear if "MG" resident
	AX = 044Bh if "699"/"Thirteen Minutes" resident
SeeAlso: AX=4243h,AH=4Ah/BX=FFFFh,AX=4B21h
--------D-214B05-----------------------------
INT 21 - DOS 5+ - SET EXECUTION STATE
	AX = 4B05h
	DS:DX -> execution state structure (see #0838)
Return: CF clear if successful
	    AX = 0000h
	CF set on error
	    AX = error code (see #0885 at AH=59h)
Note:	used by programs which intercept AX=4B00h to prepare new programs for
	  execution (including setting the DOS version number).	 No DOS, BIOS
	  or other software interrupt may be called after return from this call
	  before commencement of the child process.  If DOS is running in the
	  HMA, A20 is turned off on return from this call.
SeeAlso: AH=4Bh

Format of execution state structure:
Offset	Size	Description	(Table 0838)
 00h	WORD	reserved (00h)
 02h	WORD	type flags
		bit 0: program is an .EXE
		bit 1: program is an overlay
 04h	DWORD	pointer to ASCIZ name of program file
 08h	WORD	PSP segment of new program
 0Ah	DWORD	starting CS:IP of new program
 0Eh	DWORD	program size including PSP
--------v-214B20-----------------------------
INT 21 - VIRUS - "Holocaust"/"Telefonica" - ???
	AX = 4B20h
SeeAlso: AX=4B04h,AX=4B21h
--------v-214B21-----------------------------
INT 21 C - VIRUS - "Holocaust"/"Telefonica" - ???
	AX = 4B21h
Note:	called at completion of virus installation
SeeAlso: AX=4B04h,AX=4B20h,AX=4B25h
--------v-214B25-----------------------------
INT 21 - VIRUS - "1063"/"Mono" - INSTALLATION CHECK
	AX = 4B25h
Return: DI = 1234h if resident
SeeAlso: AX=4B21h,AX=4B40h
--------v-214B40-----------------------------
INT 21 - VIRUS - "Plastique"/"AntiCad" - INSTALLATION CHECK
	AX = 4B40h
Return: AX = 5678h if resident
SeeAlso: AX=4B25h,AX=4B41h,AX=4B4Ah
--------v-214B41-----------------------------
INT 21 - VIRUS - "Plastique"/"AntiCad" - ???
	AX = 4B41h
	???
Return: ???
SeeAlso: AX=4B40h
--------v-214B4A-----------------------------
INT 21 - VIRUS - "Jabberwocky" - INSTALLATION CHECK
	AX = 4B4Ah
Return: AL = 57h if resident
SeeAlso: AX=4B40h,AX=4B4Bh
--------v-214B4B-----------------------------
INT 21 - VIRUS - "Horse-2" - INSTALLATION CHECK
	AX = 4B4Bh
Return: CF clear if resident
SeeAlso: AX=4B4Ah,AX=4B4Dh
--------v-214B4D-----------------------------
INT 21 - VIRUS - "Murphy-2", "Patricia"/"Smack" - INSTALLATION CHECK
	AX = 4B4Dh
Return: CF clear if resident
SeeAlso: AX=4B4Ah,AX=4B50h
--------v-214B50-----------------------------
INT 21 - VIRUS - "Plastique-2576"/"AntiCad-2576" - INSTALLATION CHECK
	AX = 4B50h
Return: AX = 1234h if resident
SeeAlso: AX=4B4Dh,AX=4B53h,AX=4B60h
--------v-214B53-----------------------------
INT 21 - VIRUS - "Horse" - INSTALLATION CHECK
	AX = 4B53h
Return: CF clear if resident
SeeAlso: AX=4B50h,AX=4B53h/BX=2121h,AX=4B55h
--------v-214B53BX2121-----------------------
INT 21 - VIRUS - "One Half" - INSTALLATION CHECK
	AX = 4B53h
	BX = 2121h
	CX = 1212h
	DX = 0236h
Return: AX = 454Bh if installed
SeeAlso: AX=4B50h,AX=4B53h,AX=4B55h
--------v-214B55-----------------------------
INT 21 - VIRUS - "Sparse" - INSTALLATION CHECK
	AX = 4B55h
Return: AX = 1231h if resident
SeeAlso: AX=4B53h,AX=4B59h
--------v-214B59-----------------------------
INT 21 - VIRUS - "Murphy-1", "Murphy-4" - INSTALLATION CHECK
	AX = 4B59h
Return: CF clear if resident
SeeAlso: AX=4B50h,AX=4B5Eh
--------v-214B5E-----------------------------
INT 21 - VIRUS - "Brothers" - INSTALLATION CHECK
	AX = 4B5Eh
Return: CF clear if resident
SeeAlso: AX=4B59h,AX=4B87h
--------v-214B60-----------------------------
INT 21 - VIRUS - "Plastique-2576"/"AntiCad-2576" - ???
	AX = 4B60h
	???
Return: ???
SeeAlso: AX=4B50h
--------v-214B87-----------------------------
INT 21 - VIRUS - "Shirley" - INSTALLATION CHECK
	AX = 4B87h
Return: AX = 6663h if resident
SeeAlso: AX=4B5Eh,AX=4B95h
--------v-214B95-----------------------------
INT 21 - VIRUS - "Zherkov-1882" - INSTALLATION CHECK
	AX = 4B95h
Return: AX = 1973h if resident
SeeAlso: AX=4B87h,AX=4BA7h
--------v-214BA7-----------------------------
INT 21 - VIRUS - "1876"/"Dash-em" - INSTALLATION CHECK
	AX = 4BA7h
Return: AX = B459h if resident
SeeAlso: AX=4B95h,AX=4BAAh
--------v-214BAA-----------------------------
INT 21 - VIRUS - "Nomenklatura" - INSTALLATION CHECK
	AX = 4BAAh
Return: CF clear if resident
SeeAlso: AX=4BA7h,AX=4BAFh
--------v-214BAF-----------------------------
INT 21 - VIRUS - "948"/"Screenplus1", "Magnitogorsk" - INSTALLATION CHECK
	AX = 4BAFh
Return: AL = AFh if "Magnitogorsk" resident
	AL = FAh if "948"/"Screenplus1" resident
SeeAlso: AX=4BAAh,AX=4BDDh
--------v-214BDD-----------------------------
INT 21 - VIRUS - "Lozinsky"/"Zherkov" - INSTALLATION CHECK
	AX = 4BDDh
Return: AX = 1234h
SeeAlso: AX=4BAFh,AX=4BFEh
--------v-214BEE-----------------------------
INT 21 - F-DRIVER.SYS v1.14+ - GRAB INT 21
	AX = 4BEEh
Return: AX = status
	    1234h grab was successful
	    2345h failed (INT 21 grabbed previously)
Program: F-DRIVER.SYS is part of the shareware F-PROT virus/trojan protection
	  package by Fridrik Skulason
Note:	when called the first time, this function moves the INT 21 monitoring
	  code from its original location in the INT 21 chain to be the first
	  thing called by INT 21.  This is the mechanism used by F-NET.
SeeAlso: INT 2F/AX=4653h
--------k-214BF0-----------------------------
INT 21 - DIET v1.10+ (Overlay Mode) - INSTALLATION CHECK
	AX = 4BF0h
Return: CF clear if installed
	    AX = 899Dh
Program: DIET is an executable-compression program by Teddy Matsumoto
SeeAlso: AX=37D0h,AX=4BF1h
--------k-214BF1-----------------------------
INT 21 - DIET v1.10+ (Overlay Mode) - EXPAND PROGRAM???
	AX = 4BF1h
Return: ???
SeeAlso: AX=37D0h,AX=4BF0h
--------v-214BFE-----------------------------
INT 21 - VIRUS - "Hitchcock", "Dark Avenger-1028", "1193" - INSTALLATION CHECK
	AX = 4BFEh
Return: AX = 1234h if "Hitchcock" resident
	AX = ABCDh if "1193"/"Copyright" resident
	DI = 55BBh if "Dark Avenger-1028" resident
SeeAlso: AX=4BDDh,AX=4BFFh"Justice"
--------v-214BFF-----------------------------
INT 21 - VIRUS - "USSR-707", "Justice", "Europe 92" - INSTALLATION CHECK
	AX = 4BFFh
Return: BL = FFh if "USSR-707" resident
	DI = 55AAh if "Justice" resident
	CF clear if "Europe 92" resident
SeeAlso: AX=4BFEh,AX=4BFFh"Cascade",AX=5252h
--------v-214BFFSI0000-----------------------
INT 21 - VIRUS - "Cascade" - INSTALLATION CHECK
	AX = 4BFFh
	SI = 0000h
	DI = 0000h
Return: DI = 55AAh if installed
SeeAlso: AX=4BFFh"Justice",AX=5252h
--------D-214C-------------------------------
INT 21 - DOS 2+ - "EXIT" - TERMINATE WITH RETURN CODE
	AH = 4Ch
	AL = return code
Return: never returns
Notes:	unless the process is its own parent (see #0603 at AH=26h, offset 16h
	  in PSP), all open files are closed and all memory belonging to the
	  process is freed
	all network file locks should be removed before calling this function
SeeAlso: AH=00h,AH=26h,AH=4Bh,AH=4Dh,INT 15/AH=12h/BH=02h,INT 20,INT 22
SeeAlso: INT 60/DI=0601h
----------214C57-----------------------------
INT 21 - Headroom - ???
	AX = 4C57h
	DS:DX -> target address
Note:	jumps to target address instead of terminating program
SeeAlso: AX=5758h
--------D-214D-------------------------------
INT 21 - DOS 2+ - GET RETURN CODE (ERRORLEVEL)
	AH = 4Dh
Return: AH = termination type
	    00h normal (INT 20,INT 21/AH=00h, or INT 21/AH=4Ch)
	    01h control-C abort
	    02h critical error abort
	    03h terminate and stay resident (INT 21/AH=31h or INT 27)
	AL = return code
Notes:	the word in which DOS stores the return code is cleared after being
	  read by this function, so the return code can only be retrieved once
	COMMAND.COM stores the return code of the last external command it
	  executed as ERRORLEVEL
	this call should not be used if the child was started with AX=4B04h;
	  use AH=8Ah instead
	the following sequence will close a Virtual DOS Machine under OS/2 2.0:
	  MOV	AH,4Dh
	  INT	21h
	  HLT
	  DB	02h,0FDh
	  This sequence is the only way to close a specific VDM which was
	  booted from floppy or a disk image.
SeeAlso: AH=4Bh,AH=4Ch,AH=8Ah
--------D-214E-------------------------------
INT 21 - DOS 2+ - "FINDFIRST" - FIND FIRST MATCHING FILE
	AH = 4Eh
	AL = special flag for use by APPEND (see note below)
	CX = file attribute mask (see #0643 at AX=4301h) (bits 0 and 5 ignored)
	    0088h (Novell DOS 7) find first deleted file
	DS:DX -> ASCIZ file specification (may include path and wildcards)
Return: CF clear if successful
	    [DTA] = FindFirst data block (see #0839)
	CF set on error
	    AX = error code (02h,03h,12h) (see #0885 at AH=59h)
Notes:	for search attributes other than 08h, all files with at MOST the
	  specified combination of hidden, system, and directory attributes
	  will be returned.  Under DOS 2.x, searching for attribute 08h
	  (volume label) will also return normal files, while under DOS 3+
	  only the volume label (if any) will be returned.
	this call also returns successfully if given the name of a character
	  device without wildcards.  DOS 2.x returns attribute 00h, size 0,
	  and the current date and time.  DOS 3+ returns attribute 40h and the
	  current date and time.
	immediately after an INT 2F/AX=B711h (APPEND return found name), the
	  name at DS:DX will be overwritten; if AL=00h on entry, the actual
	  found pathname will be stored, otherwise, the actual found path
	  will be prepended to the original filespec without a path.
	under LANtastic, this call may be used to obtain a list of a server's
	  shared resources by searching for "\\SERVER\*.*"; a list of printer
	  resources may be obtained by searching for "\\SERVER\@*.*"
	under the FlashTek X-32 DOS extender, the filespec pointer is in DS:EDX
BUGS:	under DOS 3.x and 4.x, the second and subsequent calls to this function
	  with a character device name (no wildcards) and search attributes
	  which include the volume-label bit (08h) will fail unless there is
	  an intervening DOS call which implicitly or explicity performs a
	  directory search without the volume-label bit.  Such implicit
	  searches are performed by CREATE (AH=3Ch), OPEN (AH=3Dh), UNLINK
	  (AH=41h), and RENAME (AH=56h)
	DR-DOS 3.41 and 5.0 return the Directory attribute for the volume label
SeeAlso: AH=11h,AH=4Fh,AX=4301h,AH=71h,INT 2F/AX=111Bh,INT 2F/AX=B711h

Format of FindFirst data block:
Offset	Size	Description	(Table 0839)
---PC-DOS 3.10, PC-DOS 4.01, MS-DOS 3.2/3.3/5.0---
 00h	BYTE	drive letter (bits 0-6), remote if bit 7 set
 01h 11 BYTEs	search template
 0Ch	BYTE	search attributes
---DOS 2.x (and some DOS 3.x???)---
 00h	BYTE	search attributes
 01h	BYTE	drive letter
 02h 11 BYTEs	search template
---WILDUNIX.COM---
 00h 12 BYTEs	15-character wildcard search pattern and drive letter (packed)
 0Ch	BYTE	search attributes
---DOS 2.x and most 3.x---
 0Dh	WORD	entry count within directory
 0Fh	DWORD	pointer to DTA???
 13h	WORD	cluster number of start of parent directory
---PC-DOS 4.01, MS-DOS 3.2/3.3/5.0---
 0Dh	WORD	entry count within directory
 0Fh	WORD	cluster number of start of parent directory
 11h  4 BYTEs	reserved
---all versions, documented fields---
 15h	BYTE	attribute of file found
 16h	WORD	file time (see #0876 at AX=5700h)
 18h	WORD	file date (see #0877 at AX=5700h)
 1Ah	DWORD	file size
 1Eh 13 BYTEs	ASCIZ filename+extension
--------f-214E-------------------------------
INT 21 - WILDUNIX.COM internal - INSTALLATION CHECK
	AH = 4Eh
	DS:DX = 0000h:0000h
Return: AH = 99h if installed
Program: WILDUNIX.COM is a resident Unix-style wildcard expander by Steve
	  Hosgood and Terry Barnaby
--------D-214F-------------------------------
INT 21 - DOS 2+ - "FINDNEXT" - FIND NEXT MATCHING FILE
	AH = 4Fh
	[DTA] = data block from previous FindFirst or FindNext call
Return: CF clear if successful
	CF set on error
	    AX = error code (12h) (see #0885 at AH=59h)
Note:	under Novell DOS 7, if the FindFirst call (AH=4Eh) had CX=0088h, then
	  the next matching deleted file will be returned
BUG:	DR-DOS 3.41 and 5.0 return the Directory attribute for the volume label
SeeAlso: AH=12h,AH=4Eh,AH=71h,AH=72h
--------D-2150-------------------------------
INT 21 - DOS 2+ internal - SET CURRENT PROCESS ID (SET PSP ADDRESS)
	AH = 50h
	BX = segment of PSP for new process
Notes:	DOS uses the current PSP address to determine which processes own files
	  and memory; it corresponds to process identifiers used by other OSs
	under DOS 2.x, this function cannot be invoked inside an INT 28h
	  handler without setting the Critical Error flag
	under MS-DOS 3+ and DR-DOS 3.41+, this function does not use any of
	  the DOS-internal stacks and may thus be called at any time, even
	  during another INT 21h call
	some Microsoft applications such as Quick C 2.51 use segments of 0000h
	  and FFFFh and direct access to the SDA (see #0892 at AX=5D06h) to
	  test whether they are running under MS-DOS rather than a compatible
	  OS; although one should only call this function with valid PSP
	  addresses, any program hooking it should be prepared to handle
	  invalid addresses
	this function is supported by the OS/2 compatibility box
	this call was undocumented prior to the release of DOS 5.0
SeeAlso: AH=26h,AH=51h,AH=62h
--------D-2151-------------------------------
INT 21 - DOS 2+ internal - GET CURRENT PROCESS ID (GET PSP ADDRESS)
	AH = 51h
Return: BX = segment of PSP for current process
Notes:	DOS uses the current PSP address to determine which processes own files
	  and memory; it corresponds to process identifiers used by other OSs
	under DOS 2.x, this function cannot be invoked inside an INT 28h
	  handler without setting the Critical Error flag
	under DOS 3+, this function does not use any of the DOS-internal stacks
	  and may thus be called at any time, even during another INT 21h call
	supported by OS/2 compatibility box
	identical to the documented AH=62h
	this call was undocumented prior to the release of DOS 5.0
SeeAlso: AH=26h,AH=50h,AH=62h
--------D-2152-------------------------------
INT 21 U - DOS 2+ internal - "SYSVARS" - GET LIST OF LISTS
	AH = 52h
Return: ES:BX -> DOS list of lists (see #0840)
Notes:	partially supported by OS/2 v1.1 compatibility box (however, most
	  pointers are FFFFh:FFFFh, LASTDRIVE is FFh, and the NUL header "next"
	  pointer is FFFFh:FFFFh).
	partially supported by the Windows NT DOS box; contains only a
	  rudimentary Current Directory Structure (see #0857)
	on return, ES points at the DOS data segment (see also INT 2F/AX=1203h)
	Quarterdeck's suggested check for the use of its DOSDATA.SYS or
	  DOS-UP.SYS is to test whether the list-of-lists segment is greater
	  than the segment of the first memory block; a better check for
	  DOS-UP.SYS is INT 21/AX=2B01h/CX=444Dh
SeeAlso: INT 2F/AX=1203h

Format of List of Lists:
Offset	Size	Description	(Table 0840)
 -24	WORD	(DOS 3.1+) contents of CX from INT 21/AX=5E01h
 -22	WORD	(DOS ???+) LRU counter for FCB caching
 -20	WORD	(DOS ???+) LRU counter for FCB opens
 -18	DWORD	(DOS ???+) address of OEM function handler (see INT 21/AH=F8h)
			FFFFh:FFFFh if not installed or not available
 -14	WORD	(DOS ???+) offset in DOS CS of code to return from INT 21 call
 -12	WORD	(DOS 3.1+) sharing retry count (see AX=440Bh)
 -10	WORD	(DOS 3.1+) sharing retry delay (see AX=440Bh)
 -8	DWORD	(DOS 3+) pointer to current disk buffer
 -4	WORD	(DOS 3+) pointer in DOS data segment of unread CON input
		when CON is read via a handle, DOS reads an entire line,
		  and returns the requested portion, buffering the rest
		  for the next read.  0000h indicates no unread input
 -2	WORD	segment of first memory control block (see #0841)
 00h	DWORD	pointer to first Drive Parameter Block (see #0620 at AH=32h)
 04h	DWORD	-> first System File Table (see #0851,#0852,#0853,#0854)
 08h	DWORD	pointer to active CLOCK$ device's header (most recently loaded
		  driver with CLOCK bit set)
 0Ch	DWORD	pointer to active CON device's header (most recently loaded
		  driver with STDIN bit set)
---DOS 2.x---
 10h	BYTE	number of logical drives in system
 11h	WORD	maximum bytes/block of any block device
 13h	DWORD	pointer to first disk buffer (see #0861,#0862)
 17h 18 BYTEs	actual NUL device driver header (not a pointer!)
		NUL is always the first device on DOS's linked list of device
		  drivers. (see #0858)
---DOS 3.0---
 10h	BYTE	number of block devices
 11h	WORD	maximum bytes/block of any block device
 13h	DWORD	pointer to first disk buffer (see #0862,#0864)
 17h	DWORD	pointer to array of current directory structures (see #0855)
 1Bh	BYTE	value of LASTDRIVE command in CONFIG.SYS (default 5)
 1Ch	DWORD	pointer to STRING= workspace area
 20h	WORD	size of STRING area (the x in STRING=x from CONFIG.SYS)
 22h	DWORD	pointer to FCB table
 26h	WORD	the y in FCBS=x,y from CONFIG.SYS
 28h 18 BYTEs	actual NUL device driver header (not a pointer!)
		NUL is always the first device on DOS's linked list of device
		  drivers. (see #0858)
---DOS 3.1-3.3---
 10h	WORD	maximum bytes per sector of any block device
 12h	DWORD	pointer to first disk buffer in buffer chain (see #0862)
 16h	DWORD	pointer to array of current directory structures (see #0855)
 1Ah	DWORD	pointer to system FCB tables (see #0852,#0853,#0854)
 1Eh	WORD	number of protected FCBs (the y in the CONFIG.SYS FCBS=x,y)
 20h	BYTE	number of block devices installed
 21h	BYTE	number of available drive letters (largest of 5, installed
		  block devices, and CONFIG.SYS LASTDRIVE=).  Also size of
		  current directory structure array.
 22h 18 BYTEs	actual NUL device driver header (not a pointer!)
		NUL is always the first device on DOS's linked list of device
		  drivers. (see #0858)
 34h	BYTE	number of JOIN'ed drives
---DOS 4.x---
 10h	WORD	maximum bytes per sector of any block device
 12h	DWORD	pointer to disk buffer info record (see #0864,#0865)
		Note: although the initialization code in IO.SYS uses this
		  pointer, MSDOS.SYS does not, instead using the hardcoded     
		  address of the info record
 16h	DWORD	pointer to array of current directory structures
		(see #0855,#0856)
 1Ah	DWORD	pointer to system FCB tables (see #0852,#0853,#0854)
 1Eh	WORD	number of protected FCBs (the y in the CONFIG.SYS FCBS=x,y)
		(always 00h for DOS 5.0)
 20h	BYTE	number of block devices installed
 21h	BYTE	number of available drive letters (largest of 5, installed
		  block devices, and CONFIG.SYS LASTDRIVE=).  Also size of
		  current directory structure array.
 22h 18 BYTEs	actual NUL device driver header (not a pointer!)
		NUL is always the first device on DOS's linked list of device
		  drivers. (see #0858)
 34h	BYTE	number of JOIN'ed drives
 35h	WORD	pointer within IBMDOS code segment to list of special program
		  names (see #0874)
		(always 0000h for DOS 5.0)
 37h	DWORD	pointer to FAR routine for resident IFS utility functions
		(see #0870)
		may be called by any IFS driver which does not wish to
		  service functions 20h or 24h-28h itself
 3Bh	DWORD	pointer to chain of IFS (installable file system) drivers
 3Fh	WORD	the x in BUFFERS x,y (rounded up to multiple of 30 if in EMS)
 41h	WORD	number of lookahead buffers (the y in BUFFERS x,y)
 43h	BYTE	boot drive (1=A:)
 44h	BYTE	flag: 01h to use DWORD moves (80386+), 00h otherwise
 45h	WORD	extended memory size in KB
---DOS 5.0-6.0---
 10h 39 BYTEs	as for DOS 4.x (see above)
 37h	DWORD	pointer to SETVER program list or 0000h:0000h
 3Bh	WORD	(DOS=HIGH) offset in DOS CS of function to fix A20 control
		  when executing special .COM format
 3Dh	WORD	PSP of most-recently EXECed program if DOS in HMA, 0000h if low
		used for maintaining count of INT 21 calls which disable A20
		  on return
 3Fh  8 BYTEs	as for DOS 4.x (see above)
---Windows NT DOS Box---
 10h  6 BYTEs	???
 16h	DWORD	pointer to array of current directory structures (see #0857)
 1Ah  6 BYTEs	???
 20h	BYTE	number of block devices installed
 21h	BYTE	number of local drive letters (= installed block devices)
		Also size of current directory structure array.
 22h 18 BYTEs	actual NUL device driver header (not a pointer!)
		NUL is always the first device on DOS's linked list of device
		  drivers. (see #0858)

Format of DOS memory control block (see also below):
Offset	Size	Description	(Table 0841)
 00h	BYTE	block type: 5Ah if last block in chain, otherwise 4Dh
 01h	WORD	PSP segment of owner or special flag value (see #0842)
 03h	WORD	size of memory block in paragraphs
 05h  3 BYTEs	unused by MS-DOS
		(386MAX) if locked-out block, region start/prev region end
---DOS 2.x,3.x---
 08h  8 BYTEs	unused
---DOS 4+ ---
 08h  8 BYTEs	ASCII program name if PSP memory block or DR-DOS UMB,
		  else garbage
		null-terminated if less than 8 characters
Notes:	the next MCB is at segment (current + size + 1)
	under DOS 3.1+, the first memory block is the DOS data segment,
	  containing installable drivers, buffers, etc.	 Under DOS 4+ it is
	  divided into subsegments, each with its own memory control block
	  (see #0845), the first of which is at offset 0000h.
	for DOS 5+, blocks owned by DOS may have either "SC" or "SD" in bytes
	  08h and 09h.	"SC" is system code or locked-out inter-UMB memory,
	  "SD" is system data, device drivers, etc.
	Some versions of DR-DOS use only seven characters of the program name,
	  placing a NUL in the eighth byte.
SeeAlso: #0843,#0844,#0845

(Table 0842)
Values for special flag PSP segments:
 0000h	free
 0006h	DR-DOS XMS UMB
 0007h	DR-DOS excluded upper memory ("hole")
 0008h	belongs to DOS
 FFF7h	386MAX v6.01+ ???
 FFFAh	386MAX UMB control block (see #0697 at AX=4402h"386MAX")
 FFFDh	386MAX locked-out memory
 FFFEh	386MAX UMB (normally immediately follows its control block)
 FFFFh	386MAX v6.01+ device driver

Format of MS-DOS 5+ UMB control block:
Offset	Size	Description	(Table 0843)
 00h	BYTE	type: 5Ah if last block in chain, 4Dh otherwise
 01h	WORD	first available paragraph in UMB if control block at start
		  of UMB, 000Ah if control block at end of UMB
 03h	WORD	length in paragraphs of following UMB or locked-out region
 05h  3 BYTEs	unused
 08h  8 BYTEs	block type name: "UMB" if start block, "SM" if end block in UMB

Format of STARLITE (General Software's Embedded DOS) memory control block:
Offset	Size	Description	(Table 0844)
 00h	BYTE	block type: 5Ah if last block in chain, otherwise 4Dh
 01h	WORD	PSP segment of owner, 0000h if free, 0008h if belongs to DOS
 03h	WORD	size of memory block in paragraphs
 05h	BYTE	unused
 06h	WORD	segment address of next memory control block (0000h if last)
 08h	WORD	segment address of previous memory control block or 0000h
 0Ah  6 BYTEs	reserved

Format of DOS 4+ data segment subsegment control blocks:
Offset	Size	Description	(Table 0845)
 00h	BYTE	subsegment type (blocks typically appear in this order)
		"D"  device driver
		"E"  device driver appendage
		"I"  IFS (Installable File System) driver
		"F"  FILES=  control block storage area (for FILES>5)
		"X"  FCBS=   control block storage area, if present
		"C"  BUFFERS EMS workspace area (if BUFFERS /X option used)
		"B"  BUFFERS=  storage area
		"L"  LASTDRIVE=	 current directory structure array storage area
		"S"  STACKS=  code and data area, if present (see #0846,#0847)
		"T"  INSTALL= transient code
 01h	WORD	paragraph of subsegment start (usually the next paragraph)
 03h	WORD	size of subsegment in paragraphs
 05h  3 BYTEs	unused
 08h  8 BYTEs	for types "D" and "I", base name of file from which the driver
		  was loaded (unused for other types)

Format of data at start of STACKS code segment (if present):
Offset	Size	Description	(Table 0846)
 00h	WORD	???
 02h	WORD	number of stacks (the x in STACKS=x,y)
 04h	WORD	size of stack control block array (should be 8*x)
 06h	WORD	size of each stack (the y in STACKS=x,y)
 08h	DWORD	pointer to STACKS data segment
 0Ch	WORD	offset in STACKS data segment of stack control block array
 0Eh	WORD	offset in STACKS data segment of last element of that array
 10h	WORD	offset in STACKS data segment of the entry in that array for
		  the next stack to be allocated (initially same as value in
		  0Eh and works its way down in steps of 8 to the value in
		  0Ch as hardware interrupts pre-empt each other)
Note:	the STACKS code segment data may, if present, be located as follows:
    DOS 3.2:	The code segment data is at a paragraph boundary fairly early
		  in the IBMBIO segment (seen at 0070:0190h)
    DOS 3.3:	The code segment is at a paragraph boundary in the DOS data
		  segment, which may be determined by inspecting the segment
		  pointers of the vectors for those of interrupts 02h, 08h-0Eh,
		  70h, 72-77h which have not been redirected by device drivers
		  or TSRs.
    DOS 4+	Identified by sub-segment control block type "S" within the DOS
		  data segment.
SeeAlso: #0848,INT B4"STACKMAN"

Format of array elements in STACKS data segment:
Offset	Size	Description	(Table 0847)
 00h	BYTE	status: 00h=free, 01h=in use, 03h=corrupted by overflow of
		  higher stack.
 01h	BYTE	not used
 02h	WORD	previous SP
 04h	WORD	previous SS
 06h	WORD	ptr to word at top of stack (new value for SP). The word at the
		  top of the stack is preset to point back to this control
		  block.

Format of SHARE.EXE hooks (DOS 3.1-6.00):
Offset	Size	Description	(Table 0848)
(offsets from first system file table--pointed at by ListOfLists+04h)
-3Ch	DWORD	pointer to FAR routine for ???
		Note: not called by MS-DOS 3.3, set to 0000h:0000h by
			SHARE 3.3+
-38h	DWORD	pointer to FAR routine called on opening file
		on call, internal DOS location points at filename
		  (see #0892 at AX=5D06h)
		Return: CF clear if successful
			CF set on error
			    AX = DOS error code (24h) (see #0885 at AH=59h)
		Note: SHARE directly accesses DOS-internal data to get name of
			file just opened
-34h	DWORD	pointer to FAR routine called on closing file
		ES:DI -> system file table
		Note: does something to every Record Lock Record for file
-30h	DWORD	pointer to FAR routine to close all files for given computer
		(called by AX=5D03h)
-2Ch	DWORD	pointer to FAR routine to close all files for given process
		(called by AX=5D04h)
-28h	DWORD	pointer to FAR routine to close file by name
		(called by AX=5D02h)
		DS:SI -> DOS parameter list (see #0891 at AX=5D00h)
		   DPL's DS:DX -> name of file to close
		Return: CF clear if successful
			CF set on error
			    AX = DOS error code (03h) (see #0885 at AH=59h)
-24h	DWORD	pointer to FAR routine to lock region of file
		call with BX = file handle
			  ---DOS 3.x---
			  CX:DX = starting offset
			  SI:AX = size
			  ---DOS 4+---
			  DS:DX -> lock range
					DWORD start offset
					DWORD size in bytes
		Return: CF set on error
			    AL = DOS error code (21h) (see #0885 at AH=59h)
		Note: not called if file is marked as remote
-20h	DWORD	pointer to FAR routine to unlock region of file
		call with BX = file handle
			  ---DOS 3.x---
			  CX:DX = starting offset
			  SI:AX = size
			  ---DOS 4+---
			  DS:DX -> lock range
					DWORD start offset
					DWORD size in bytes
		Return: CF set on error
			    AL = DOS error code (21h) (see #0885 at AH=59h)
		Note: not called if file is marked as remote
-1Ch	DWORD	pointer to FAR routine to check if file region is locked
		call with ES:DI -> system file table entry for file
			CX = length of region from current position in file
		Return: CF set if any portion of region locked
			    AX = 0021h
-18h	DWORD	pointer to FAR routine to get open file list entry
		(called by AX=5D05h)
		call with DS:SI -> DOS parameter list (see #0891 at AX=5D00h)
			DPL's BX = index of sharing record
			DPL's CX = index of SFT in SFT chain of sharing rec
		Return: CF set on error or not loaded
				 AX = DOS error code (12h) (see #0885 at AH=59h)
			CF clear if successful
			    ES:DI -> filename
			    CX = number of locks owned by specified SFT
			    BX = network machine number
			    DX destroyed
-14h	DWORD	pointer to FAR routine for updating FCB from SFT???
		call with DS:SI -> unopened FCB
			  ES:DI -> system file table entry
		Return: BL = C0h???
		Note: copies following fields from SFT to FCB:
		   starting cluster of file	  0Bh	 1Ah
		   sharing record offset	  33h	 1Ch
		   file attribute		  04h	 1Eh
-10h	DWORD	pointer to FAR routine to get first cluster of FCB file ???
		call with ES:DI -> system file table entry
			  DS:SI -> FCB
		Return: CF set if SFT closed or sharing record offsets
				mismatched
			CF clear if successful
			    BX = starting cluster number from FCB
-0Ch	DWORD	pointer to FAR routine to close file if duplicate for process
		DS:SI -> system file table
		Return: AX = number of handle in JFT which already uses SFT
		Note: called during open/create of a file
		Note: if SFT was opened with inheritance enabled and sharing
			mode 111, does something to all other SFTs owned by
			same process which have the same file open mode and
			sharing record
-08h	DWORD	pointer to FAR routine for closing file
		Note: closes various handles referring to file most-recently
			opened
-04h	DWORD	pointer to FAR routine to update directory info in related SFT
		  entries
		call with ES:DI -> system file table entry for file (see #0853)
			  AX = subfunction (apply to each related SFT)
				00h: update time stamp (offset 0Dh) and date
				     stamp (offset 0Fh)
				01h: update file size (offset 11h) and starting
				     cluster (offset 0Bh).  Sets last-accessed
				     cluster fields to start of file if file
				     never accessed
				02h: as function 01h, but last-accessed fields
				     always changed
				03h: do both functions 00h and 02h
		Note: follows ptr at offset 2Bh in system file table entries
		Note: NOP if opened with no-inherit or via FCB
Notes:	most of the above hooks (except -04h, -14h, -18h, and -3Ch) assume
	  either that SS=DOS DS or SS=DS=DOS DS and directly access
	  DOS-internal data
	sharing hooks are not supported by DR-DOS 5-6; they appear to be
	  supported by Novell DOS 7, with a segment of 0000h indicating the
	  DOS data segment
SeeAlso: #0849,#0850

Format of sharing record:
Offset	Size	Description	(Table 0849)
 00h	BYTE	flag
		00h free block
		01h allocated block
		FFh end marker
 01h	WORD	size of block
 03h	BYTE	checksum of pathname (including NUL)
		if sum of ASCII values is N, checksum is (N/256 + N%256)
 04h	WORD	offset in SHARE's DS of first Record Lock Record (see #0850)
 06h	DWORD	pointer to start of system file table chain for file
 0Ah	WORD	unique sequence number
 0Ch	var	ASCIZ full pathname
Note:	not supported by DR-DOS SHARE 1.1 and 2.0; will reportedly be
	  supported by Novell DOS 7
SeeAlso: #0848,#0850

Format of SHARE.EXE Record Lock Record:
Offset	Size	Description	(Table 0850)
 00h	WORD	offset in SHARE's DS of next lock table in list or 0000h
 02h	DWORD	offset in file of start of locked region
 06h	DWORD	offset in file of end of locked region
 0Ah	DWORD	pointer to System File Table entry for this file
 0Eh	WORD	PSP segment of lock's owner
---DOS 5+ ---
 10h	WORD	lock type: (00h lock all, 01h lock writes only)
SeeAlso: #0848,#0849,#0851,#0854

Format of DOS 2.x system file tables:
Offset	Size	Description	(Table 0851)
 00h	DWORD	pointer to next file table (offset FFFFh if last)
 04h	WORD	number of files in this table
 06h  28h bytes per file
	Offset	Size	Description
	 00h	BYTE	number of file handles referring to this file
	 01h	BYTE	file open mode (see #0627 at AH=3Dh)
	 02h	BYTE	file attribute
	 03h	BYTE	drive (0 = character device, 1 = A, 2 = B, etc)
	 04h 11 BYTEs	filename in FCB format (no path,no period,blank-padded)
	 0Fh	WORD	???
	 11h	WORD	???
	 13h	DWORD	file size???
	 17h	WORD	file date in packed format (see #0877 at AX=5700h)
	 19h	WORD	file time in packed format (see #0876 at AX=5700h)
	 1Bh	BYTE	device attribute (see #0646 at AX=4400h)
	---character device---
	 1Ch	DWORD	pointer to device driver
	---block device---
	 1Ch	WORD	starting cluster of file
	 1Eh	WORD	relative cluster in file of last cluster accessed
	------
	 20h	WORD	absolute cluster number of current cluster
	 22h	WORD	???
	 24h	DWORD	current file position???
SeeAlso: #0852,#0853,#0854

Format of DOS 3.0 system file tables and FCB tables:
Offset	Size	Description	(Table 0852)
 00h	DWORD	pointer to next file table (offset FFFFh if last)
 04h	WORD	number of files in this table
 06h  38h bytes per file
	Offset	Size	Description
	 00h-1Eh as for DOS 3.1+ (see #0853)
	 1Fh	WORD	byte offset of directory entry within sector
	 21h 11 BYTEs	filename in FCB format (no path/period, blank-padded)
	 2Ch	DWORD	(SHARE.EXE) pointer to previous SFT sharing same file
	 30h	WORD	(SHARE.EXE) network machine number which opened file
			(Windows Enhanced mode DOSMGR uses the virtual machine
			  ID as the machine number; see INT 2F/AX=1683h)
	 32h	WORD	PSP segment of file's owner (first three entries for
			  AUX/CON/PRN contain segment of IO.SYS startup code)
	 34h	WORD	(SHARE.EXE) offset in SHARE code seg of share record
	 36h	WORD	??? apparently always 0000h
SeeAlso: #0851,#0853,#0854

Format of DOS 3.1-3.3x, DR-DOS 5.0-6.0 system file tables and FCB tables:
Offset	Size	Description	(Table 0853)
 00h	DWORD	pointer to next file table (offset FFFFh if last)
 04h	WORD	number of files in this table
 06h  35h bytes per file
	Offset	Size	Description
	 00h	WORD	number of file handles referring to this file
	 02h	WORD	file open mode (see AX=6C00h, #0627 at AH=3Dh)
			bit 15 set if this file opened via FCB
	 04h	BYTE	file attribute (see #0643 at AX=4301h)
	 05h	WORD	device info word (see #0646 at AX=4400h)
			bit 15 set if remote file
			bit 14 set means do not set file date/time on closing
			bit 12 set means don't inherit on EXEC
			bits 5-0 drive number for disk files
	 07h	DWORD	pointer to device driver header if character device
			else pointer to DOS Drive Parameter Block
			  (see #0620 at AH=32h)
	 0Bh	WORD	starting cluster of file
	 0Dh	WORD	file time in packed format (see #0876 at AX=5700h)
			not used for character devices in DR-DOS
	 0Fh	WORD	file date in packed format (see #0877 at AX=5700h)
			not used for character devices in DR-DOS
	 11h	DWORD	file size
	---system file table---
	 15h	DWORD	current offset in file (may be larger than size of
			  file; INT 21/AH=42h does not check new position)
	---FCB table---
	 15h	WORD	counter for last I/O to FCB
	 17h	WORD	counter for last open of FCB
			(these are separate to determine the times of the
			  latest I/O and open)
	---
	 19h	WORD	relative cluster within file of last cluster accessed
	 1Bh	WORD	absolute cluster number of last cluster accessed
			0000h if file never read or written???
	 1Dh	WORD	number of sector containing directory entry
	 1Fh	BYTE	number of dir entry within sector (byte offset/32)
	 20h 11 BYTEs	filename in FCB format (no path/period, blank-padded)
	 2Bh	DWORD	(SHARE.EXE) pointer to previous SFT sharing same file
	 2Fh	WORD	(SHARE.EXE) network machine number which opened file
			(Windows Enhanced mode DOSMGR uses the virtual machine
			  ID as the machine number; see INT 2F/AX=1683h)
	 31h	WORD	PSP segment of file's owner (see #0603 at AH=26h)
			  (first three entries for AUX/CON/PRN contain segment
			  of IO.SYS startup code)
	 33h	WORD	offset within SHARE.EXE code segment of
			  sharing record (see #0849)  0000h = none
SeeAlso: #0851,#0852,#0854

Format of DOS 4.0-6.0 system file tables and FCB tables:
Offset	Size	Description	(Table 0854)
 00h	DWORD	pointer to next file table (offset FFFFh if last)
 04h	WORD	number of files in this table
 06h  3Bh bytes per file
	Offset	Size	Description
	 00h	WORD	number of file handles referring to this file
			FFFFh if in use but not referenced
	 02h	WORD	file open mode (see AX=6C00h,#0627 at AH=3Dh)
			bit 15 set if this file opened via FCB
	 04h	BYTE	file attribute (see #0643 at AX=4301h)
	 05h	WORD	device info word (see also #0646 at AX=4400h)
			bit 15 set if remote file
			bit 14 set means do not set file date/time on closing
			bit 13 set if named pipe
			bit 12 set if no inherit
			bit 11 set if network spooler
			bit 7  set if device, clear if file (only if local)
			bits 6-0 as for AX=4400h
	 07h	DWORD	pointer to device driver header if character device
			else pointer to DOS Drive Parameter Block
			  (see #0620 at AH=32h) or REDIR data
	 0Bh	WORD	starting cluster of file (local files only)
	 0Dh	WORD	file time in packed format (see #0876)
	 0Fh	WORD	file date in packed format (see #0877)
	 11h	DWORD	file size
	 15h	DWORD	current offset in file (SFT)
			LRU counters (FCB table, two WORDs)
	---local file---
	 19h	WORD	relative cluster within file of last cluster accessed
	 1Bh	DWORD	number of sector containing directory entry
	 1Fh	BYTE	number of dir entry within sector (byte offset/32)
	---network redirector---
	 19h	DWORD	pointer to REDIRIFS record
	 1Dh  3 BYTEs	???
	------
	 20h 11 BYTEs	filename in FCB format (no path/period, blank-padded)
	 2Bh	DWORD	(SHARE.EXE) pointer to previous SFT sharing same file
	 2Fh	WORD	(SHARE.EXE) network machine number which opened file
			(Windows Enhanced mode DOSMGR uses the virtual machine
			  ID as the machine number; see INT 2F/AX=1683h)
	 31h	WORD	PSP segment of file's owner (see #0603 at AH=26h)
			  (first three entries for AUX/CON/PRN contain segment
			  of IO.SYS startup code)
	 33h	WORD	offset within SHARE.EXE code segment of
			sharing record (see #0808)  0000h = none
	 35h	WORD	(local) absolute cluster number of last clustr accessed
			(redirector) ???
	 37h	DWORD	pointer to IFS driver for file, 0000000h if native DOS
Note:	the OS/2 2.0 DOS Boot Session does not properly fill in the filename
	  field due to incomplete support for SFTs; the OS/2 2.0 DOS Window
	  does not appear to support SFTs at all
SeeAlso: #0851,#0852,#0853

Format of current directory structure (CDS) (array, LASTDRIVE entries):
Offset	Size	Description	(Table 0855)
 00h 67 BYTEs	ASCIZ path in form X:\PATH (local) or UNC form
		  \\MACH\PATH (network, see notes below)
 43h	WORD	drive attributes (see also note below and AX=5F07h)
		bit 15: uses network redirector	 \ invalid if 00, installable
		bit 14: physical drive		 / file system if 11
		bit 13: JOIN'ed	  \ path above is true path that would be
		bit 12: SUBST'ed  / needed if not under SUBST or JOIN
		bit  7: remote drive hidden from redirector's assign-list and
			  exempt from network connection make/break commands;
			  set for CD-ROM drives
 45h	DWORD	pointer to Drive Parameter Block for drive
		  (see #0620 at AH=32h)
---local drives---
 49h	WORD	starting cluster of current directory
		0000h = root, FFFFh = never accessed
 4Bh	WORD	??? seems to be FFFFh always
 4Dh	WORD	??? seems to be FFFFh always
---network drives---
 49h	DWORD	pointer to redirector or REDIRIFS record, or FFFFh:FFFFh
		(DOS 4 only) available for use by IFS driver
 4Dh	WORD	stored user data from INT 21/AX=5F03h
------
 4Fh	WORD	offset in current directory path of backslash corresponding to
		  root directory for drive
		this value specifies how many characters to hide from the
		  "CHDIR" and "GETDIR" calls; normally set to 2 to hide the
		  drive letter and colon, SUBST, JOIN, and networks change it
		  so that only the appropriate portion of the true path is
		  visible to the user
---DOS 4+ ---
 51h	BYTE	(DOS 4 only, remote drives) device type
		04h network drive
 52h	DWORD	pointer to IFS driver (DOS 4) or redirector block (DOS 5+) for
		  this drive, 00000000h if native DOS
 56h	WORD	available for use by IFS driver
Notes:	the path for invalid drives is normally set to X:\, but may be empty
	  after JOIN x: /D in DR-DOS 5.0 or NET USE x: /D in older LAN versions
	normally, only one of bits 13&12 may be set together with bit 14, but
	  DR-DOS 5.0 uses other combinations for bits 15-12: 0111 JOIN,
	  0001 SUBST, 0101 ASSIGN (see #0856)
	Windows for Workgroups 3.11 network sets the path to the local
	  drive and directory even for network drives; in that case the
	  UNC form \\SERVER\SHARE can be obtained with INT 21/AX=5F02h
	  or INT 21/AX=5F46h
SeeAlso: #0856

Format of DR-DOS 5.0-6.0 current directory structure entry (array):
Offset	Size	Description	(Table 0856)
 00h 67 BYTEs	ASCIZ pathname of actual root directory for this logical drive
 43h	WORD	drive attributes
		1000h SUBSTed drive
		3000h??? JOINed drive
		4000h physical drive
		5000h ASSIGNed drive
		7000h JOINed drive
		8000h network drive
 45h	BYTE	physical drive number (0=A:) if this logical drive is valid
 46h	BYTE	??? apparently flags for JOIN and ASSIGN
 47h	WORD	cluster number of start of parent directory (0000h = root)
 49h	WORD	entry number of current directory in parent directory
 4Bh	WORD	cluster number of start of current directory
 4Dh	WORD	used for media change detection (details not available)
 4Fh	WORD	cluster number of SUBST/JOIN "root" directory
		0000h if physical root directory
SeeAlso: #0855

Format of Windows NT Current Directory Structure (CDS) (array):
Offset	Size	Description	(Table 0857)
 00h 67 BYTEs	ASCIZ path in form X:\ (does not show either current directory
		  or network path)
 43h  4 BYTEs	???
Note:	the WinNT CDS contains only as many entries as there are local drives,
	  not LASTDRIVE entries.

Format of DOS device driver header:
Offset	Size	Description	(Table 0858)
 00h	DWORD	pointer to next driver, offset=FFFFh if last driver
 04h	WORD	device attributes (see #0859,#0860)
 06h	WORD	device strategy entry point
		call with ES:BX -> request header
		  (see #1382 at INT 2F/AX=0802h)
 08h	WORD	device interrupt entry point
---character device---
 0Ah  8 BYTEs	blank-padded character device name
---block device---
 0Ah	BYTE	number of subunits (drives) supported by driver
 0Bh  7 BYTEs	normally unused; sometimes contains signature to indicate
		  specific drivers:
		"GFS	"   LapLink III device driver DD.BIN
		"STAC-CD"   Stacker/Stacker Anywhere (see AX=4404h"Stacker")
		"SIDExxx"   PCMCIA driver ATADRV.EXE (see AX=440Dh)
		"$PCMATA"   PCMCIA driver PCMATA.SYS (see AX=440Dh)
		"DSKREET"   NortonUtils v5+ Diskreet (see INT 2F/AX=FE00h)
---
 12h	WORD	(CD-ROM driver) reserved, must be 0000h
		appears to be another device chain
 14h	BYTE	(CD-ROM driver) drive letter (must initially be 00h)
 15h	BYTE	(CD-ROM driver) number of units
 16h  6 BYTEs	(CD-ROM driver) signature 'MSCDnn' where 'nn' is version
			(currently '00')
SeeAlso: #1341 at INT 25/AX=CDCDh,#1557 at INT 2F/AX=5600h

Bitfields for device attributes (character device):
Bit(s)	Description	(Table 0859)
 15	set (indicates character device)
 14	IOCTL supported (see AH=44h)
 13	(DOS 3+) output until busy supported
 12	reserved
 11	(DOS 3+) OPEN/CLOSE/RemMedia calls supported
 10-8	reserved
 7	(DOS 5+) Generic IOCTL check call supported (driver command 19h)
	(see AX=4410h,AX=4411h)
 6	(DOS 3.2+) Generic IOCTL call supported (driver command 13h)
	(see AX=440Ch,AX=440Dh)
 5	reserved
 4	device is special (use INT 29 "fast console output")
 3	device is CLOCK$ (all reads/writes use transfer record described
	  below)
 2	device is NUL
 1	device is standard output
 0	device is standard input
Note:	for European MS-DOS 4.0, bit 11 also indicates that bits 8-6 contain a
	  version code (000 = DOS 3.0,3.1; 001 = DOS 3.2;
	  010 = European DOS 4.0)
SeeAlso: #0860,#0858

Bitfields for device attributes (block device):
Bit(s)	Description	(Table 0860)
 15	clear (indicates block device)
 14	IOCTL supported
 13	non-IBM format
 12	network device (device is remote)
 11	(DOS 3+) OPEN/CLOSE/RemMedia calls supported
 10	reserved
 9	direct I/O not allowed??? (set by DOS 3.3 DRIVER.SYS for "new" drives)
 8	??? set by DOS 3.3 DRIVER.SYS for "new" drives
 7	(DOS 5+) Generic IOCTL check call supported (driver command 19h)
	(see AX=4410h,AX=4411h)
 6	(DOS 3.2+) Generic IOCTL call supported (driver command 13h)
	implies support for commands 17h and 18h
	  (see AX=440Ch,AX=440Dh,AX=440Eh,AX=440Fh)
 5-2	reserved
 1	driver supports 32-bit sector addressing (DOS 3.31+)
 0	 reserved
Note:	for European MS-DOS 4.0, bit 11 also indicates that bits 8-6 contain a
	  version code (000 = DOS 3.0,3.1; 001 = DOS 3.2;
	  010 = European DOS 4.0)
SeeAlso: #0859,#0858

Format of DOS 2.x disk buffer:
Offset	Size	Description	(Table 0861)
 00h	DWORD	pointer to next disk buffer, offset = FFFFh if last
		least-recently used buffer is first in chain
 04h	BYTE	drive (0=A, 1=B, etc), FFh if not in use
 05h  3 BYTEs	unused??? (seems always to be 00h 00h 01h)
 08h	WORD	logical sector number
 0Ah	BYTE	number of copies to write (1 for non-FAT sectors)
 0Bh	BYTE	sector offset between copies if multiple copies to be written
 0Ch	DWORD	pointer to DOS Drive Parameter Block (see #0620 at AH=32h)
 10h		buffered data
SeeAlso: #0862,#0864,#0865,#0867

Format of DOS 3.x disk buffer:
Offset	Size	Description	(Table 0862)
 00h	DWORD	pointer to next disk buffer, offset = FFFFh if last
		least-recently used buffer is first in chain
 04h	BYTE	drive (0=A,1=B, etc), FFh if not in use
 05h	BYTE	buffer flags (see #0863)
 06h	WORD	logical sector number
 08h	BYTE	number of copies to write (1 for non-FAT sectors)
 09h	BYTE	sector offset between copies if multiple copies to be written
 0Ah	DWORD	pointer to DOS Drive Parameter Block (see #0620 at AH=32h)
 0Eh	WORD	unused??? (almost always 0)
 10h		buffered data
SeeAlso: #0861,#0864,#0865,#0867

Bitfields for DOS 3.x disk buffer flags:
Bit(s)	Description	(Table 0863)
 7	???
 6	buffer dirty
 5	buffer has been referenced
 4	???
 3	sector in data area
 2	sector in a directory, either root or subdirectory
 1	sector in FAT
 0	boot sector??? (guess)
SeeAlso: #0868

Format of DOS 4.00 (pre UR 25066) disk buffer info:
Offset	Size	Description	(Table 0864)
 00h	DWORD	pointer to array of disk buffer hash chain heads (see #0866)
 04h	WORD	number of disk buffer hash chains (referred to as NDBCH below)
 06h	DWORD	pointer to lookahead buffer, zero if not present
 0Ah	WORD	number of lookahead sectors, else zero (the y in BUFFERS=x,y)
 0Ch	BYTE	00h if buffers in EMS (/X), FFh if not
 0Dh	WORD	EMS handle for buffers, zero if not in EMS
 0Fh	WORD	EMS physical page number used for buffers (usually 255)
 11h	WORD	??? seems always to be 0001h
 13h	WORD	segment of EMS physical page frame
 15h	WORD	??? seems always to be zero
 17h  4 WORDs	EMS partial page mapping information???
SeeAlso: #0861,#0862,#0865,#0869

Format of DOS 4.01 (from UR 25066 Corrctive Services Disk on) disk buffer info:
Offset	Size	Description	(Table 0865)
 00h	DWORD	pointer to array of disk buffer hash chain heads (see #0866)
 04h	WORD	number of disk buffer hash chains (referred to as NDBCH below)
 06h	DWORD	pointer to lookahead buffer, zero if not present
 0Ah	WORD	number of lookahead sectors, else zero (the y in BUFFERS=x,y)
 0Ch	BYTE	01h, possibly to distinguish from pre-UR 25066 format
 0Dh	WORD	??? EMS segment for BUFFERS (only with /XD)
 0Fh	WORD	??? EMS physical page number of EMS seg above (only with /XD)
 11h	WORD	??? EMS segment for ??? (only with /XD)
 13h	WORD	??? EMS physical page number of above (only with /XD)
 15h	BYTE	??? number of EMS page frames present (only with /XD)
 16h	WORD	segment of one-sector workspace buffer allocated in main memory
		  if BUFFERS/XS or /XD options in effect, possibly to avoid DMA
		  into EMS
 18h	WORD	EMS handle for buffers, zero if not in EMS
 1Ah	WORD	EMS physical page number used for buffers (usually 255)
 1Ch	WORD	??? appears always to be 0001h
 1Eh	WORD	segment of EMS physical page frame
 20h	WORD	??? appears always to be zero
 22h	BYTE	00h if /XS, 01h if /XD, FFh if BUFFERS not in EMS
SeeAlso: #0861,#0862,#0864,#0869

Format of DOS 4.x disk buffer hash chain head (array, one entry per chain):
Offset	Size	Description	(Table 0866)
 00h	WORD	EMS logical page number in which chain is resident, -1 if not
		  in EMS
 02h	DWORD	pointer to least recently used buffer header.  All buffers on
		  this chain are in the same segment.
 06h	BYTE	number of dirty buffers on this chain
 07h	BYTE	reserved (00h)
Notes:	buffered disk sectors are assigned to chain N where N is the sector's
	  address modulo NDBCH,	 0 <= n=""><= ndbch-1="" each="" chain="" resides="" completely="" within="" one="" ems="" page="" this="" structure="" is="" in="" main="" memory="" even="" if="" buffers="" are="" in="" ems="" format="" of="" dos="" 4.0-6.0="" disk="" buffer:="" offset="" size="" description="" (table="" 0867)="" 00h="" word="" forward="" ptr,="" offset="" only,="" to="" next="" least="" recently="" used="" buffer="" 02h="" word="" backward="" pointer,="" offset="" only="" 04h="" byte="" drive="" (0="A,1=B," etc)="" if="" bit="" 7="" clear="" sft="" index="" if="" bit="" 7="" set="" ffh="" if="" not="" in="" use="" 05h="" byte="" buffer="" flags="" (see="" #0868)="" 06h="" dword="" logical="" sector="" number="" (local="" buffers="" only)="" 0ah="" byte="" number="" of="" copies="" to="" write="" for="" fat="" sectors,="" same="" as="" number="" of="" fats="" for="" data="" and="" directory="" sectors,="" usually="" 1="" 0bh="" word="" offset="" in="" sectors="" between="" copies="" to="" write="" for="" fat="" sectors="" 0dh="" dword="" pointer="" to="" dos="" drive="" parameter="" block="" (see="" #0620="" at="" ah="32h)" 11h="" word="" size="" of="" data="" in="" buffer="" if="" remote="" buffer="" (see="" flags="" above)="" 13h="" byte="" reserved="" (padding)="" 14h="" buffered="" data="" note:="" for="" dos="" 4.x,="" all="" buffered="" sectors="" which="" have="" the="" same="" hash="" value="" (computed="" as="" the="" sum="" of="" high="" and="" low="" words="" of="" the="" logical="" sector="" number="" divided="" by="" the="" number="" of="" disk="" buffer="" chains)="" are="" on="" the="" same="" doubly-linked="" circular="" chain;="" for="" dos="" 5+,="" only="" a="" single="" circular="" chain="" exists.="" the="" links="" consist="" of="" offset="" addresses="" only,="" the="" segment="" being="" the="" same="" for="" all="" buffers="" in="" the="" chain.="" seealso:="" #0861,#0862,#0864="" bitfields="" for="" dos="" 4.0-6.0="" disk="" buffer="" flags:="" bit(s)="" description="" (table="" 0868)="" 7="" remote="" buffer="" 6="" buffer="" dirty="" 5="" buffer="" has="" been="" referenced="" (reserved="" in="" dos="" 5+)="" 4="" search="" data="" buffer="" (only="" valid="" if="" remote="" buffer)="" 3="" sector="" in="" data="" area="" 2="" sector="" in="" a="" directory,="" either="" root="" or="" subdirectory="" 1="" sector="" in="" fat="" 0="" reserved="" seealso:="" #0863="" format="" of="" dos="" 5.0-6.0="" disk="" buffer="" info:="" offset="" size="" description="" (table="" 0869)="" 00h="" dword="" pointer="" to="" least-recently-used="" buffer="" header="" (may="" be="" in="" hma)="" (see="" #0867)="" 04h="" word="" number="" of="" dirty="" disk="" buffers="" 06h="" dword="" pointer="" to="" lookahead="" buffer,="" zero="" if="" not="" present="" 0ah="" word="" number="" of="" lookahead="" sectors,="" else="" zero="" (the="" y="" in="" buffers="x,y)" 0ch="" byte="" buffer="" location="" 00h="" base="" memory,="" no="" workspace="" buffer="" 01h="" hma,="" workspace="" buffer="" in="" base="" memory="" 0dh="" dword="" pointer="" to="" one-segment="" workspace="" buffer="" in="" base="" memory="" 11h="" 3="" bytes="" unused="" 14h="" word="" 16h="" byte="" flag:="" int="" 24="" fail="" while="" making="" an="" i/o="" status="" call="" 17h="" byte="" temp="" storage="" for="" user="" memory="" allocation="" strategy="" during="" exec="" 18h="" byte="" counter:="" number="" of="" int="" 21="" calls="" for="" which="" a20="" is="" off="" 19h="" byte="" bit="" flags="" bit="" 0:="" bit="" 1:="" switches="/W" specified="" in="" config.sys="" (don't="" load="" wina20.sys="" when="" ms="" windows="" 3.0="" starts)="" bit="" 2:="" in="" exec="" state="" (int="" 21/ax="4B05h)" 1ah="" word="" offset="" of="" unpack="" code="" start="" (used="" only="" during="" int="" 21/ax="4B05h)" 1ch="" byte="" bit="" 0="" set="" iff="" umb="" mcb="" chain="" linked="" to="" normal="" mcb="" chain="" 1dh="" word="" minimum="" paragraphs="" of="" memory="" required="" by="" program="" being="" execed="" 1fh="" word="" segment="" of="" first="" mcb="" in="" upper="" memory="" blocks="" or="" ffffh="" if="" dos="" memory="" chain="" in="" base="" 640k="" only="" (first="" umb="" mcb="" usually="" at="" 9fffh,="" locking="" out="" video="" memory="" with="" a="" dos-owned="" memory="" block)="" the="" mcb="" this="" word="" points="" at="" contains="" a="" valid="" link="" into="" high="" memory="" even="" if="" it="" is="" marked="" with="" a="" 'z'="" indicating="" the="" last="" memory="" block="" 21h="" word="" paragraph="" from="" which="" to="" start="" scanning="" during="" memory="" allocation="" seealso:="" #0864,#0865="" (table="" 0870)="" call="" ifs="" utility="" function="" entry="" point="" with:="" ah="20h" miscellaneous="" functions="" al="00h" get="" date="" return:="" cx="year" dh="month" dl="day" al="01h" get="" process="" id="" and="" computer="" id="" return:="" bx="current" psp="" segment="" dx="active" network="" machine="" number="" al="05h" get="" file="" system="" info="" es:di="" -=""> 16-byte info buffer
		Return: buffer filled
			Offset	Size	Description
			 00h  2 BYTEs	unused
			 02h	WORD	number of SFTs (actually counts only
					the first two file table arrays)
			 04h	WORD	number of FCB table entries
			 06h	WORD	number of proctected FCBs
			 08h  6 BYTEs	unused
			 0Eh	WORD	largest sector size supported
	    AL = 06h get machine name
		ES:DI -> 18-byte buffer for name
		Return: buffer filled with name starting at offset 02h
	    AL = 08h get sharing retry count
		Return: BX = sharing retry count
	    AL = other
		Return: CF set
	AH = 21h get redirection state
		BH = type (03h disk, 04h printer)
		Return: BH = state (00h off, 01h on)
	AH = 22h ??? some sort of time calculation
		AL = 00h ???
		    nonzero ???
	AH = 23h ??? some sort of time calculation
	AH = 24h compare filenames
	    DS:SI -> first ASCIZ filename
	    ES:DI -> second ASCIZ filename
	    Return: ZF set if files are same ignoring case and / vs \
	AH = 25h normalize filename
	    DS:SI -> ASCIZ filename
	    ES:DI -> buffer for result
	    Return: filename uppercased, forward slashes changed to backslashes
	AH = 26h get DOS stack
	    Return: DS:SI -> top of stack
		    CX = size of stack in bytes
	AH = 27h increment InDOS flag
	AH = 28h decrement InDOS flag
Note:	IFS drivers which do not wish to implement functions 20h or 24h-28h may
	  pass them on to the default handler pointed at by [LoL+37h]
SeeAlso: #0871,#0872

Format of IFS driver list:
Offset	Size	Description	(Table 0871)
 00h	DWORD	pointer to next driver header
 04h  8 BYTEs	IFS driver name (blank padded), as used by FILESYS command
 0Ch  4 BYTEs	???
 10h	DWORD	pointer to IFS utility function entry point (see #0870)
		call with ES:BX -> IFS request (see #0872)
 14h	WORD	offset in header's segment of driver entry point
	???
SeeAlso: #0870,#0872

Format of IFS request block:
Offset	Size	Description	(Table 0872)
 00h	WORD	total size in bytes of request
 02h	BYTE	class of request
		02h ???
		03h redirection
		04h ???
		05h file access
		06h convert error code to string
		07h ???
 03h	WORD	returned DOS error code
 05h	BYTE	IFS driver exit status
		00h success
		01h ???
		02h ???
		03h ???
		04h ???
		FFh internal failure
 06h 16 BYTEs	???
---request class 02h---
 16h	BYTE	function code
		04h ???
 17h	BYTE	unused???
 18h	DWORD	pointer to ???
 1Ch	DWORD	pointer to ???
 20h  2 BYTEs	???
---request class 03h---
 16h	BYTE	function code
 17h	BYTE	???
 18h	DWORD	pointer to ???
 1Ch	DWORD	pointer to ???
 22h	WORD	returned ???
 24h	WORD	returned ???
 26h	WORD	returned ???
 28h	BYTE	returned ???
 29h	BYTE	unused???
---request class 04h---
 16h	DWORD	pointer to ???
 1Ah	DWORD	pointer to ???
---request class 05h---
 16h	BYTE	function code
		01h flush disk buffers
		02h get disk space
		03h MKDIR
		04h RMDIR
		05h CHDIR
		06h delete file
		07h rename file
		08h search directory
		09h file open/create
		0Ah LSEEK
		0Bh read from file
		0Ch write to file
		0Dh lock region of file
		0Eh commit/close file
		0Fh get/set file attributes
		10h printer control
		11h ???
		12h process termination
		13h ???
	---class 05h function 01h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	BYTE	???
	 27h	BYTE	???
	---class 05h function 02h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	WORD	returned total clusters
	 28h	WORD	returned sectors per cluster
	 2Ah	WORD	returned bytes per sector
	 2Ch	WORD	returned available clusters
	 2Eh	BYTE	returned ???
	 2Fh	BYTE	???
	---class 05h functions 03h,04h,05h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	DWORD	pointer to directory name
	---class 05h function 06h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	WORD	attribute mask
	 28h	DWORD	pointer to filename
	---class 05h function 07h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	WORD	attribute mask
	 28h	DWORD	pointer to source filespec
	 2Ch	DWORD	pointer to destination filespec
	---class 05h function 08h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	BYTE	00h FINDFIRST
			01h FINDNEXT
	 28h	DWORD	pointer to FindFirst search data + 01h if FINDNEXT
	 2Ch	WORD	search attribute if FINDFIRST
	 2Eh	DWORD	pointer to filespec if FINDFIRST
	---class 05h function 09h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 26h	WORD	???  \ together, specify open vs. create, whether or
	 28h	WORD	???  / not to truncate
	 2Ah  4 BYTEs	???
	 2Eh	DWORD	pointer to filename
	 32h  4 BYTEs	???
	 36h	WORD	file attributes on call
			returned ???
	 38h	WORD	returned ???
	---class 05h function 0Ah---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 26h	BYTE	seek type (02h = from end)
	 28h	DWORD	offset on call
			returned new absolute position
	---class 05h functions 0Bh,0Ch---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 28h	WORD	number of bytes to transfer
			returned bytes actually transferred
	 2Ah	DWORD	transfer address
	---class 05h function 0Dh---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 26h	BYTE	file handle???
	 27h	BYTE	unused???
	 28h	WORD	???
	 2Ah	WORD	???
	 2Ch	WORD	???
	 2Eh	WORD	???
	---class 05h function 0Eh---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 26h	BYTE	00h commit file
			01h close file
	 27h	BYTE	unused???
	---class 05h function 0Fh---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h  4 BYTEs	???
	 26h	BYTE	02h GET attributes
			03h PUT attributes
	 27h	BYTE	unused???
	 28h 12 BYTEs	???
	 34h	WORD	search attributes???
	 36h	DWORD	pointer to filename
	 3Ah	WORD	(GET) returned ???
	 3Ch	WORD	(GET) returned ???
	 3Eh	WORD	(GET) returned ???
	 40h	WORD	(GET) returned ???
	 42h	WORD	(PUT) new attributes
			(GET) returned attributes
	---class 05h function 10h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 26h	WORD	???
	 28h	DWORD	pointer to ???
	 2Ch	WORD	???
	 2Eh	BYTE	???
	 2Fh	BYTE	subfunction
			01h get printer setup
			03h ???
			04h ???
			05h ???
			06h ???
			07h ???
			21h set printer setup
	---class 05h function 11h---
	 17h  7 BYTEs	???
	 1Eh	DWORD	pointer to ???
	 22h	DWORD	pointer to IFS open file structure (see #0873)
	 26h	BYTE	subfunction
	 27h	BYTE	unused???
	 28h	WORD	???
	 2Ah	WORD	???
	 2Ch	WORD	???
	 2Eh	BYTE	???
	 2Fh	BYTE	???
	---class 05h function 12h---
	 17h 15 BYTEs	unused???
	 26h	WORD	PSP segment
	 28h	BYTE	type of process termination
	 29h	BYTE	unused???
	---class 05h function 13h---
	 17h 15 BYTEs	unused???
	 26h	WORD	PSP segment
---request class 06h---
 16h	DWORD	returned pointer to string corresponding to error code at 03h
 1Ah	BYTE	returned ???
 1Bh	BYTE	unused
---request class 07h---
 16h	DWORD	pointer to IFS open file structure (see #0873)
 1Ah	BYTE	???
 1Bh	BYTE	unused???
SeeAlso: #0871,#0870,#0873

Format of IFS open file structure:
Offset	Size	Description	(Table 0873)
 00h	WORD	???
 02h	WORD	device info word
 04h	WORD	file open mode
 06h	WORD	???
 08h	WORD	file attributes
 0Ah	WORD	owner's network machine number
 0Ch	WORD	owner's PSP segment
 0Eh	DWORD	file size
 12h	DWORD	current offset in file
 16h	WORD	file time
 18h	WORD	file date
 1Ah 11 BYTEs	filename in FCB format
 25h	WORD	???
 27h	WORD	hash value of SFT address
		(low word of linear address + segment&F000h)
 29h  3 WORDs	network info from SFT
 2Fh	WORD	???

Format of one item in DOS 4+ list of special program names:
Offset	Size	Description	(Table 0874)
 00h	BYTE	length of name (00h = end of list)
 01h  N BYTEs	name in format name.ext
 N    2 BYTEs	DOS version to return for program (major,minor)
		(see AH=30h,INT 2F/AX=122Fh)
---DOS 4 only---
 N+2	BYTE	number of times to return fake version number (FFh = always)
Note:	if the name of the executable for the program making the DOS "get
	  version" call matches one of the names in this list, DOS returns the
	  specified version rather than the true version number
--------v-215252-----------------------------
INT 21 - VIRUS - "516"/"Leapfrog" - INSTALLATION CHECK
	AX = 5252h
Return: BX = FFEEh if resident
SeeAlso: AX=4BFFh"Cascade",AX=58CCh
--------D-2153-------------------------------
INT 21 - DOS 2+ internal - TRANSLATE BIOS PARAMETER BLOCK TO DRIVE PARAM BLOCK
	AH = 53h
	DS:SI -> BIOS Parameter Block (see #0875)
	ES:BP -> buffer for Drive Parameter Block (see #0620 at AH=32h)
Return: ES:BP buffer filled
Notes:	for DOS 3+, the cluster at which to start searching is set to 0000h
	  and the number of free clusters is set to FFFFh (unknown)
	if the number of sectors per cluster is set to zero, MS-DOS will hang
	  at startup because it computes the internally-used shift count by
	  shifting this value right until the carry flag is set; since this
	  will never happen when the field is zero, MS-DOS hangs

Format of BIOS Parameter Block:
Offset	Size	Description	(Table 0875)
 00h	WORD	number of bytes per sector
 02h	BYTE	number of sectors per cluster
 03h	WORD	number of reserved sectors at start of disk
 05h	BYTE	number of FATs
 06h	WORD	number of entries in root directory
 08h	WORD	total number of sectors
		for DOS 4+, set to zero if partition >32M, then set DWORD at
		  15h to actual number of sectors
 0Ah	BYTE	media ID byte (see #0581)
 0Bh	WORD	number of sectors per FAT
---DOS 2.13---
 0Dh	WORD	number of sectors per track
 0Fh	WORD	number of heads
 11h	WORD	number of hidden sectors
---DOS 3+---
 0Dh	WORD	number of sectors per track
 0Fh	WORD	number of heads
 11h	DWORD	number of hidden sectors
 15h 11 BYTEs	reserved
---DOS 4+ ---
 15h	DWORD	total number of sectors if word at 08h contains zero
 19h  6 BYTEs	???
 1Fh	WORD	number of cylinders
 21h	BYTE	device type
 22h	WORD	device attributes (removable or not, etc)
---DR-DOS 5+ ---
 15h	DWORD	total number of sectors if word at 08h contains zero
 19h  6 BYTEs	reserved
---European MS-DOS 4.00---
 15h	DWORD	total number of sectors if word at 08h contains zero
		(however, this DOS does not actually implement >32M partitions)
SeeAlso: #0620
--------D-2154-------------------------------
INT 21 - DOS 2+ - GET VERIFY FLAG
	AH = 54h
Return: AL = verify flag
	    00h off
	    01h on (all disk writes verified after writing)
SeeAlso: AH=2Eh
--------D-2155-------------------------------
INT 21 - DOS 2+ internal - CREATE CHILD PSP
	AH = 55h
	DX = segment at which to create new PSP
	SI = (DOS 3+) value to place in memory size field at DX:[0002h]
Return: CF clear if successful
Notes:	creates a "child" PSP rather than making an exact copy of the current
	  PSP; the new PSP's parent pointer is set to the current PSP and the
	  reference count for each inherited file is incremented
	(DOS 2+) sets current PSP to DX
	(DOS 3+) marks "no inherit" file handles as closed in child PSP
SeeAlso: AH=26h,AH=50h
--------D-2156-------------------------------
INT 21 - DOS 2+ - "RENAME" - RENAME FILE
	AH = 56h
	DS:DX -> ASCIZ filename of existing file (no wildcards, but see below)
	ES:DI -> ASCIZ new filename (no wildcards)
	CL = attribute mask (server call only, see below)
Return: CF clear if successful
	CF set on error
	    AX = error code (02h,03h,05h,11h) (see #0885)
Notes:	allows move between directories on same logical volume
	this function does not set the archive attribute
	  (see #0643 at AX=4301h), which results in incremental backups not
	  backing up the file under its new name
	open files should not be renamed
	(DOS 3+) allows renaming of directories
	(DOS 3.1+) wildcards are allowed if invoked via AX=5D00h, in which case
	  error 12h (no more files) is returned on success, and both source and
	  destination specs must be canonical (as returned by AH=60h).
	  Wildcards in the destination are replaced by the corresponding char
	  of each source file being renamed.  Under DOS 3.x, the call will fail
	  if the destination wildcard is *.* or equivalent; under DR-DOS 5.0,
	  the call will fail if any wildcards are used.	 When invoked via
	  AX=5D00h, only those files matching the attribute mask in CL are
	  renamed.
	under the FlashTek X-32 DOS extender, the old-name pointer is in DS:EDX
	  and the new-name pointer is in ES:EDI (DS must equal ES)
	(DOS 2.x only) this function renames file by creating a new directory
	  entry with the new name,then marking the old entry deleted
BUG:	under DR-DOS 3.41, this function will generate a new directory entry
	  with the new name (including any wildcards) which can only be removed
	  with a sector editor when invoked via AX=5D00h
SeeAlso: AH=17h,AX=4301h,AX=5D00h,AH=60h,AH=71h
--------D-215700-----------------------------
INT 21 - DOS 2+ - GET FILE'S DATE AND TIME
	AX = 5700h
	BX = file handle
Return: CF clear if successful
	    CX = file's time (see #0876)
	    DX = file's date (see #0877)
	CF set on error
	    AX = error code (01h,06h) (see #0885)
Note:	under DR-DOS 3.41 and 5.0, this function returns 0 (no date/time) for
	  character devices; MS-DOS returns date and time of opening
SeeAlso: AX=5701h

Bitfields for file time:
Bit(s)	Description	(Table 0876)
 15-11	hours (0-23)
 10-5	minutes
 4-0	seconds/2

Bitfields for file date:
Bit(s)	Description	(Table 0877)
 15-9	year - 1980
 8-5	month
 4-0	day
--------D-215701-----------------------------
INT 21 - DOS 2+ - SET FILE'S DATE AND TIME
	AX = 5701h
	BX = file handle
	CX = new time (see #0876)
	DX = new date (see #0877)
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,06h) (see #0885)
SeeAlso: AX=5700h
--------D-215702-----------------------------
INT 21 - DOS 4.x only - GET EXTENDED ATTRIBUTES FOR FILE
	AX = 5702h
	BX = file handle
	CX = size of result buffer or 0000h
	DS:SI -> EAP list (see #0878)
	ES:DI -> buffer for returned EAV list (see #0881)
Return: CF clear if successful
	    CX = size of returned data
	CF set on error
	    AX = error code (see #0885)
Desc:	get the current value of one or more extended attributes
Notes:	if CX=0000h on entry, ES:DI is ignored and no data is actually
	  returned, only the amount of data which is available
	the default DOS 4 behavior is to return a single word of 0000h (no
	  structures) in the result buffer if CX>=0002h on entry
SeeAlso: AX=5703h,AX=5704h,AH=6Eh,INT 2F/AX=112Dh

Format of EAP (extended attribute properties) list:
Offset	Size	Description	(Table 0878)
 00h	WORD	number of EAP structures following
 02h	var	array of EAP structures (see #0879)
SeeAlso: #0881

Format of EAP (extended attribute property) structure:
Offset	Size	Description	(Table 0879)
 00h	BYTE	attribute type
		01h boolean (either 00h or 01h)
		02h number (BYTE, WORD, or DWORD)
		03h string
		04h date stamp
		05h time stamp
 01h	WORD	EAP flags (see #0880)
 03h	BYTE	size of reference string (name)
 04h  N BYTEs	reference string

Bitfields for EAP flags:
Bit(s)	Description	(Table 0880)
 12	unchangeable
 13	ignore
 14	unchangeable
 15	used by COMMAND.COM for code page, but not understood by ATTRIB

Format of EAV (extended attribute value) list:
Offset	Size	Description	(Table 0881)
 00h	WORD	number of EAV structures following
 02h	var	array of Extended Attribute Value structures (see #0882)
SeeAlso: #0878

Format of Extended Attribute Value structures:
Offset	Size	Description	(Table 0882)
 00h  4 BYTEs	???
 04h	BYTE	size of reference string
 05h	WORD	size of value
 07h	var	reference string
	var	value
--------O-215702-----------------------------
INT 21 - OS/2 v1.1+ Family API - DosQFileInfo
	AX = 5702h
	BX = file handle
	CX = size of buffer for information
	DX = level of information
	ES:DI -> buffer for information
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5702h/BX=FFFFh,AX=5703h"OS/2"
--------O-215702BXFFFF-----------------------
INT 21 - OS/2 v1.1+ Compatibility Box Family API - DosQPathInfo
	AX = 5702h
	BX = FFFFh
	CX = size of buffer for information
	DX = level of information (0002h)
	DS:SI -> filename
	ES:DI -> buffer for FAPI path information (see #0883)
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AX = error code
SeeAlso: AX=5702h"OS/2",AX=5703h/BX=FFFFh

Format of FAPI path information:
Offset	Size	Description	(Table 0883)
 00h 22 BYTEs	???
 16h	DWORD	extended attribute size (none present if less than 5)
--------D-215703-----------------------------
INT 21 - DOS 4.x only - GET EXTENDED ATTRIBUTE PROPERTIES
	AX = 5703h
	BX = file handle
	CX = size of result buffer or 0000h
	ES:DI -> result buffer
Return: CF clear if successful
	    CX = size of returned data
	CF set on error
	    AX = error code (see #0885)
	ES:DI -> zero word (DOS 4.0) if CX >= 2 on entry
Desc:	get a list of the extended attributes which are defined for the
	  specified file
Notes:	if CX=0000h on entry, ES:DI is ignored and no data is actually
	  returned, only the amount of data which is available
	the default DOS 4 behavior is to return a trivial EAP list consisting
	  of the single word 0000h (no EAP structures) if CX>=0002h on entry
SeeAlso: AX=5702h,AX=5704h,AH=6Eh,INT 2F/AX=112Dh
--------O-215703-----------------------------
INT 21 - OS/2 v1.1+ Family API - DosSetFileInfo
	AX = 5703h
	BX = file handle
	CX = size of information buffer
	DX = level of information
	ES:DI -> information buffer
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5702h"OS/2",AX=5703h/BX=FFFFh
--------O-215703BXFFFF-----------------------
INT 21 - OS/2 v1.1+ Family API - DosSetPathInfo
	AX = 5703h
	BX = FFFFh
	CX = size of information buffer
	DX = level of information
	DS:SI -> filename
	ES:DI -> information buffer
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5702h/BX=FFFFh,AX=5703h"OS/2"
--------D-215704-----------------------------
INT 21 - DOS 4.x only - SET EXTENDED ATTRIBUTES
	AX = 5704h
	BX = file handle
	ES:DI -> EAV list (see #0881)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885)
Note:	the default DOS 4 behavior is to do nothing and return successfully
SeeAlso: AX=5702h,AX=5703h,INT 2F/AX=112Dh
----------215757BX5757-----------------------
INT 21 U - IBM Genie - Resident Manager - INSTALLATION CHECK
	AX = 5757h
	BX = 5757h
Return: AX = 0000h if installed
	    BX = ???
		 DX = ???
	    DS:SI -> list of 27 DWORD entry point addresses
Program: IBM Genie is a set of utility TSRs by Helix Software
Note:	other functions possible if BX <> 5757h, but details not yet available
----------215758-----------------------------
INT 21 U - Headroom - API
	AX = 5758h
	BL = function
	    00h ???
	    01h get Headroom location
		Return: CF clear if installed
			    AX = PSP segment of Headroom TSR
			    BX = paragraphs of memory used by Headroom
			CF set if not (normal DOS return)
		Note:	this function is also used as an installation check
	    02h get INT 21 handler
		Return: CF clear
			ES:BX -> Headroom's INT 21 handler
		Note: also sets unknown flag
	    03h launch application???
		DS:SI -> 233-byte application record
		Return: ???
	    04h ???
		???
		Return: CF clear
	    05h get swap directory
		Return: CF clear
			DX:AX -> ASCIZ swap directory name
	    06h ???
		DX = ???
		Return: CF clear
	    07h ???
	    08h ???
	    09h get current application
		Return: BX = application number
	    0Ah ???
		DX = application number
		DS:SI = ???
		Return: ???
	    0Bh ???
	    0Ch ???
		DX = application number
		???
		Return: ???
	    0Dh ???
		DX = application number
		???
		Return: ???
	    0Eh get ???
		Return: CF clear
			AX = ???
	    0Fh set ??? flag
	    10h clear ??? flag
	    11h find application by name
		DS:SI -> ASCIZ application name
		Return: CF clear
			AX = application number or FFFFh if not loaded
	    12h ???
		DX = application number
		Return: CF clear
			???
	    13h ???
		Return: CF clear
	    14h ???
		same as function 13h
	    15h set ???
		DX = ???
	    16h get ???
		Return: AX = ??? set by function 15h
		 17h get ???
		Return: BX = ???
			CX = ??? (may be pointer in BX:CX)
	    18h BUG: branches incorrectly due to fencepost error
Program: Headroom is a TSR/task switcher by Helix Software
SeeAlso: AX=4C57h,AX=5757h,INT 2F/AX=5758h
--------D-2158-------------------------------
INT 21 - DOS 2.11+ - GET OR SET MEMORY ALLOCATION STRATEGY
	AH = 58h
	AL = subfunction
	    00h get allocation strategy
		Return: AX = current strategy (see #0884)
	    01h set allocation strategy
		BL = new allocation strategy (see #0884)
		BH = 00h (DOS 5+)
Return: CF clear if successful
	CF set on error
	    AX = error code (01h) (see #0885)
Notes:	the Set subfunction accepts any value in BL for DOS 3.x and 4.x;
	  2 or greater means last fit
	the Get subfunction returns the last value set
	setting an allocation strategy involving high memory does not
	  automatically link in the UMB memory chain; this must be done
	  explicitly with AX=5803h in order to actually allocate high memory
	a program which changes the allocation strategy should restore it
	  before terminating
	Toshiba MS-DOS v2.11 supports subfunctions 00h and 01h, as does the
	  TI Professional MS-DOS v2.13
	DR-DOS 3.41 reportedly reverses subfunctions 00h and 01h
SeeAlso: AH=48h,AH=49h,AH=4Ah,INT 2F/AX=4310h,INT 67/AH=3Fh

(Table 0884)
Values for DOS memory allocation strategy:
 00h low memory first fit
 01h low memory best fit
 02h low memory last fit
---DOS 5+ ---
 40h high memory first fit
 41h high memory best fit
 42h high memory last fit
 80h first fit, try high then low memory
 81h best fit, try high then low memory
 82h last fit, try high then low memory
--------D-2158-------------------------------
INT 21 - DOS 5+ - GET OR SET UMB LINK STATE
	AH = 58h
	AL = subfunction
	    02h get UMB link state
		Return: AL = current link state
			    00h UMBs not part of DOS memory chain
			    01h UMBs in DOS memory chain
	    03h set UMB link state
		BX = new link state
		    0000h remove UMBs from DOS memory chain
		    0001h add UMBs to DOS memory chain
Return: CF clear if successful
	CF set on error
	    AX = error code (01h) (see #0885)
Note:	a program which changes the UMB link state should restore it before
	  terminating
--------v-2158CC-----------------------------
INT 21 - VIRUS - "1067"/"Headcrash" - INSTALLATION CHECK
	AX = 58CCh
Return: CF clear if resident
SeeAlso: AX=5252h,AX=58DDh,AX=6969h
--------v-2158DD-----------------------------
INT 21 - VIRUS - "1067"/"Headcrash" - GET ORIGINAL INT 21h VECTOR
	AX = 58DDh
Return: CX = code segment of virus
	ES:BX = old INT 21h vector
SeeAlso: AX=5252h,AX=58CCh,AX=6969h
--------D-2159--BX0000-----------------------
INT 21 - DOS 3+ - GET EXTENDED ERROR INFORMATION
	AH = 59h
	BX = 0000h
Return: AX = extended error code (see #0885)
	BH = error class (see #0887)
	BL = recommended action (see #0888)
	CH = error locus (see #0889)
	ES:DI may be pointer (see #0886, error code list below)
	CL, DX, SI, BP, and DS destroyed
Notes:	functions available under DOS 2.x map the true DOS 3+ error code into
	  one supported under DOS 2.x
	you should call this function to retrieve the true error code when an
	  FCB or DOS 2.x call returns an error
	under DR-DOS 5.0, this function does not use any of the DOS-internal
	  stacks and may thus be called at any time
SeeAlso: AH=59h/BX=0001h,AX=5D0Ah,INT 2F/AX=122Dh

(Table 0885)
Values for DOS extended error code:
 00h (0)   no error
 01h (1)   function number invalid
 02h (2)   file not found
 03h (3)   path not found
 04h (4)   too many open files (no handles available)
 05h (5)   access denied
 06h (6)   invalid handle
 07h (7)   memory control block destroyed
 08h (8)   insufficient memory
 09h (9)   memory block address invalid
 0Ah (10)  environment invalid (usually >32K in length)
 0Bh (11)  format invalid
 0Ch (12)  access code invalid
 0Dh (13)  data invalid
 0Eh (14)  reserved
 0Fh (15)  invalid drive
 10h (16)  attempted to remove current directory
 11h (17)  not same device
 12h (18)  no more files
---DOS 3+---
 13h (19)  disk write-protected
 14h (20)  unknown unit
 15h (21)  drive not ready
 16h (22)  unknown command
 17h (23)  data error (CRC)
 18h (24)  bad request structure length
 19h (25)  seek error
 1Ah (26)  unknown media type (non-DOS disk)
 1Bh (27)  sector not found
 1Ch (28)  printer out of paper
 1Dh (29)  write fault
 1Eh (30)  read fault
 1Fh (31)  general failure
 20h (32)  sharing violation
 21h (33)  lock violation
 22h (34)  disk change invalid (ES:DI -> media ID structure)(see #0886)
 23h (35)  FCB unavailable
 24h (36)  sharing buffer overflow
 25h (37)  (DOS 4+) code page mismatch
 26h (38)  (DOS 4+) cannot complete file operation (out of input)
 27h (39)  (DOS 4+) insufficient disk space
 28h-31h   reserved
 32h (50)  network request not supported
 33h (51)  remote computer not listening
 34h (52)  duplicate name on network
 35h (53)  network name not found
 36h (54)  network busy
 37h (55)  network device no longer exists
 38h (56)  network BIOS command limit exceeded
 39h (57)  network adapter hardware error
 3Ah (58)  incorrect response from network
 3Bh (59)  unexpected network error
 3Ch (60)  incompatible remote adapter
 3Dh (61)  print queue full
 3Eh (62)  queue not full
 3Fh (63)  not enough space to print file
 40h (64)  network name was deleted
 41h (65)  network: Access denied
 42h (66)  network device type incorrect
 43h (67)  network name not found
 44h (68)  network name limit exceeded
 45h (69)  network BIOS session limit exceeded
 46h (70)  temporarily paused
 47h (71)  network request not accepted
 48h (72)  network print/disk redirection paused
 49h (73)  network software not installed
	    (LANtastic) invalid network version
 4Ah (74)  unexpected adapter close
	    (LANtastic) account expired
 4Bh (75)  (LANtastic) password expired
 4Ch (76)  (LANtastic) login attempt invalid at this time
 4Dh (77)  (LANtastic v3+) disk limit exceeded on network node
 4Eh (78)  (LANtastic v3+) not logged in to network node
 4Fh (79)  reserved
 50h (80)  file exists
 51h (81)  reserved
 52h (82)  cannot make directory
 53h (83)  fail on INT 24h
 54h (84)  (DOS 3.3+) too many redirections
 55h (85)  (DOS 3.3+) duplicate redirection
 56h (86)  (DOS 3.3+) invalid password
 57h (87)  (DOS 3.3+) invalid parameter
 58h (88)  (DOS 3.3+) network write fault
 59h (89)  (DOS 4+) function not supported on network
 5Ah (90)  (DOS 4+) required system component not installed
 64h (100) (MSCDEX) unknown error
 65h (101) (MSCDEX) not ready
 66h (102) (MSCDEX) EMS memory no longer valid
 67h (103) (MSCDEX) not High Sierra or ISO-9660 format
 68h (104) (MSCDEX) door open

Format of media ID structure:
Offset	Size	Description	(Table 0886)
 00h 12 BYTEs	ASCIZ volume label of required disk
 0Ch	DWORD	serial number (DOS 4+)

(Table 0887)
Values for DOS Error Class:
 01h	out of resource (storage space or I/O channels)
 02h	temporary situation (file or record lock)
 03h	authorization (denied access)
 04h	internal (system software bug)
 05h	hardware failure
 06h	system failure (configuration file missing or incorrect)
 07h	application program error
 08h	not found
 09h	bad format
 0Ah	locked
 0Bh	media error
 0Ch	already exists
 0Dh	unknown

(Table 0888)
Values for DOS Suggested Action:
 01h	retry
 02h	delayed retry
 03h	prompt user to reenter input
 04h	abort after cleanup
 05h	immediate abort
 06h	ignore
 07h	retry after user intervention

(Table 0889)
Values for DOS Error Locus:
 01h	unknown or not appropriate
 02h	block device (disk error)
 03h	network related
 04h	serial device (timeout)
 05h	memory related
--------D-2159--BX0001-----------------------
INT 21 - European MS-DOS 4.0 - GET HARD ERROR INFORMATION
	AH = 59h
	BX = 0001h
Return: ES:DI -> hard error information packet (see #0890) for most recent
		hard (critical) error
SeeAlso: AH=59h/BX=0000h,AH=95h,INT 24

Format of European MS-DOS 4.0 hard error information packet:
Offset	Size	Description	(Table 0890)
 00h	WORD	contents of AX at system entry
 02h	WORD	Process ID which encountered error
 04h	WORD	contents of AX at time of error
 06h	BYTE	error type
		00h physical I/O error
		01h disk change request
		02h file sharing violation
		03h FCB problem
		04h file locking violation
		05h bad FAT
		06h network detected error
 07h	BYTE	INT 24 error code
 08h	WORD	extended error code (see #0885)
 0Ah	DWORD	pointer to associated device
--------D-215A-------------------------------
INT 21 - DOS 3+ - CREATE TEMPORARY FILE
	AH = 5Ah
	CX = file attribute (see #0643 at AX=4301h)
	DS:DX -> ASCIZ path ending with a '\' + 13 zero bytes to receive the
		generated filename
Return: CF clear if successful
	    AX = file handle opened for read/write in compatibility mode
	    DS:DX pathname extended with generated name for temporary file
	CF set on error
	    AX = error code (03h,04h,05h) (see #0885)
Desc:	creates a file with a unique name which must be explicitly deleted
BUGS:	COMPAQ DOS 3.31 hangs if the pathname is at XXXXh:0000h; it apparently
	  wraps around to the end of the segment
	MS-DOS 5.00 revisions A and B and PC-DOS 5.00 revision A reportedly
	  hang the system if the specified path is the root directory and the
	  root directory is full (no free directory entries)
Note:	under the FlashTek X-32 DOS extender, the path pointer is in DS:EDX
SeeAlso: AH=3Ch,AH=5Bh
--------D-215B-------------------------------
INT 21 - DOS 3+ - CREATE NEW FILE
	AH = 5Bh
	CX = file attribute (see #0643 at AX=4301h)
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    AX = file handle opened for read/write in compatibility mode
	CF set on error
	    AX = error code (03h,04h,05h,50h) (see #0885)
Notes:	unlike AH=3Ch, this function will fail if the specified file exists
	  rather than truncating it; this permits its use in creating semaphore
	  files because it is an atomic "test and set" operation
	under the FlashTek X-32 DOS extender, the filename pointer is in DS:EDX
SeeAlso: AH=3Ch,AH=5Ah
--------D-215C-------------------------------
INT 21 - DOS 3+ - "FLOCK" - RECORD LOCKING
	AH = 5Ch
	AL = subfunction
	    00h lock region of file
	    01h unlock region of file
	BX = file handle
	CX:DX = start offset of region within file
	SI:DI = length of region in bytes
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,06h,21h,24h) (see #0885)
Notes:	error returned unless SHARE or network installed
	an unlock call must specify the same region as some prior lock call
	locked regions become entirely inaccessible to other processes
	duplicate handles created with AH=45h or AH=46h inherit locks, but
	  handles inherited by child processes (see AH=4Bh) do not
	under DR-DOS 3.41 and 5.0, if a process opens a file without the no-
	  inherit flag and then starts a child, any locks set by the parent
	  are ignored, and the child will only get an error if it tries to
	  lock an area previously locked by the parent process
SeeAlso: AX=440Bh,AH=BCh,AH=BEh,INT 2F/AX=110Ah,INT 2F/AX=110Bh
--------D-215D00-----------------------------
INT 21 U - DOS 3.1+ internal - SERVER FUNCTION CALL
	AX = 5D00h
	DS:DX -> DOS parameter list (see #0891)
	DPL contains all register values for a call to INT 21h
Return: as appropriate for function being called
Notes:	does not check AH.  Out of range values will crash the system
	executes using specified computer ID and process ID
	sharing delay loops skipped
	a special sharing mode is enabled to handle FCBs opened across network
	wildcards are enabled for DELETE (AH=41h) and RENAME (AH=56h) under
	  MS-DOS; under DR-DOS 3.41, wildcards corrupt the filesystem; and
	  under DR-DOS 5.0-6.0, the call returns error code 03h due to improper
	  support for the server function call (see below)
	an extra file attribute parameter is enabled for OPEN (AH=3Dh),
	  DELETE (AH=41h), and RENAME (AH=56h)
	functions which take filenames require canonical names (as returned
	  by AH=60h); this is apparently to prevent multi-hop file forwarding
BUGS:	the OS/2 2.0 DOS Boot Session incorrectly maps DOS drive letters,
	  seemingly ignoring HPFS drives
	DR-DOS 5.0-6.0 merely recursively call INT 21 after loading the
	  registers from the DPL, leading to problems for peer-to-peer
	  networks
SeeAlso: AH=3Dh,AH=41h,AH=56h,AH=60h

Format of DOS parameter list:
Offset	Size	Description	(Table 0891)
 00h	WORD	AX
 02h	WORD	BX
 04h	WORD	CX
 06h	WORD	DX
 08h	WORD	SI
 0Ah	WORD	DI
 0Ch	WORD	DS
 0Eh	WORD	ES
 10h	WORD	reserved (0)
 12h	WORD	computer ID (0 = current system)
 14h	WORD	process ID (PSP segment on specified computer)
Note:	under Windows Enhanced mode, the computer ID is normally the virtual
	  machine ID (see INT 2F/AX=1683h), though this can reportedly be
	  changed by setting UniqueDOSPSP= in SYSTEM.INI
--------D-215D01-----------------------------
INT 21 U - DOS 3.1+ internal - COMMIT ALL FILES FOR SPECIFIED COMPUTER/PROCESS
	AX = 5D01h
	DS:DX -> DOS parameter list (see #0891), only computer ID and
		  process ID fields used
Return: CF set on error
	    AX = error code (see #0885)
	CF clear if successful
Notes:	flushes buffers and updates directory entries for each file which has
	  been written to; if remote file, calls INT 2F/AX=1107h
	the computer ID and process ID are stored but ignored under DOS 3.3
	not supported by DR-DOS 3.41 and 5.0; returns error code 01h
SeeAlso: AH=0Dh,AH=68h,INT 2F/AX=1107h
--------D-215D02-----------------------------
INT 21 U - DOS 3.1+ internal - SHARE.EXE - CLOSE FILE BY NAME
	AX = 5D02h
	DS:DX -> DOS parameter list (see #0891), only fields DX, DS,
		  computer ID, and process ID used
	DPL's DS:DX -> ASCIZ name of file to close
Return: CF set on error
	    AX = error code (see #0885)
	CF clear if successful
Notes:	error unless SHARE is loaded (calls [SysFileTable-28h])
	  (see #0848 at AH=52h)
	name must be canonical fully-qualified, such as returned by AH=60h
	not supported by DR-DOS 3.41 and 5.0; returns error code 01h
	not supported by Novell DOS 7
SeeAlso: AX=5D03h,AX=5D04h,AH=3Eh,AH=60h
--------D-215D03-----------------------------
INT 21 U - DOS 3.1+ internal - SHARE.EXE - CLOSE ALL FILES FOR GIVEN COMPUTER
	AX = 5D03h
	DS:DX -> DOS parameter list (see #0891), only computer ID used
Return: CF set on error
	    AX = error code (see #0885)
	CF clear if successful
Notes:	error unless SHARE is loaded (calls [SysFileTable-30h])
	  (see #0848 at AH=52h)
	not supported by DR-DOS 3.41 and 5.0; returns error code 01h
	not supported by Novell DOS 7
SeeAlso: AX=5D02h,AX=5D04h
--------D-215D04-----------------------------
INT 21 U - DOS 3.1+ internal - SHARE.EXE - CLOSE ALL FILES FOR GIVEN PROCESS
	AX = 5D04h
	DS:DX -> DOS parameter list (see #0891), only computer ID and
		  process ID fields used
Return: CF set on error
	    AX = error code (see #0885)
	CF clear if successful
Notes:	error unless SHARE is loaded (calls [SysFileTable-2Ch])
	   (see #0848 at AH=52h)
	not supported by DR-DOS 3.41 and 5.0; returns error code 01h
	not supported by Novell DOS 7
SeeAlso: AX=5D02h,AX=5D03h,INT 2F/AX=111Dh
--------D-215D05-----------------------------
INT 21 U - DOS 3.1+ internal - SHARE.EXE - GET OPEN FILE LIST ENTRY
	AX = 5D05h
	DS:DX -> DOS parameter list (see #0891)
	DPL's BX = index of sharing record (see #0849 at AH=52h)
	DPL's CX = index of SFT in sharing record's SFT list
Return: CF clear if successful
	    ES:DI -> ASCIZ filename
	    BX = network machine number of SFT's owner
	    CX = number of locks held by SFT's owner
	CF set if either index out of range
	    AX = 0012h (no more files)
Notes:	error unless SHARE is loaded (calls [SysFileTable-18h])
	  (see #0848 at AH=52h)
	names are always canonical fully-qualified, such as returned by AH=60h
	not supported by DR-DOS 3.41 and 5.0 and Novell DOS 7, but does not
	  return an error, instead destroying AX
SeeAlso: AH=5Ch,AH=60h
--------D-215D06-----------------------------
INT 21 U - DOS 3.0+ internal - GET ADDRESS OF DOS SWAPPABLE DATA AREA
	AX = 5D06h
Return: CF set on error
	   AX = error code (see #0885)
	CF clear if successful
	    DS:SI -> nonreentrant data area (includes all three DOS stacks)
		(critical error flag is first byte) (see #0892)
	    CX = size in bytes of area which must be swapped while in DOS
	    DX = size in bytes of area which must always be swapped
Notes:	the Critical Error flag is used in conjunction with the InDOS flag
	  (see AH=34h) to determine when it is safe to enter DOS from a TSR
	setting CritErr flag allows use of functions 50h/51h from INT 28h under
	  DOS 2.x by forcing use of correct stack
	swapping the data area allows reentering DOS unless DOS is in a
	  critical section delimited by INT 2A/AH=80h and INT 2A/AH=81h,82h
	under DOS 4.0, AX=5D0Bh should be used instead of this function
	SHARE and other DOS utilities consult the byte at offset 04h in the
	  DOS data segment (see INT 2F/AX=1203h) to determine the SDA format
	  in use: 00h = DOS 3.x, 01h = DOS 4.0-6.0, other = error.
	DR-DOS 3.41+ supports this function, but the SDA format beyond the
	  first 18h bytes is completely different from MS-DOS
SeeAlso: AX=5D0Bh,INT 2A/AH=80h,INT 2A/AH=81h,INT 2A/AH=82h

Format of DOS 3.10-3.30 Swappable Data Area:
Offset	Size	Description	(Table 0892)
 -34	BYTE	(DOS 3.10+) printer echo flag (00h off, FFh active)
 -31	BYTE	(DOS 3.30) current switch character
 -28	BYTE	(DOS 3.30) incremented on each INT 21/AX=5E01h call
 -27 16 BYTEs	(DOS 3.30) machine name set by INT 21/AX=5E01h
 -11  5 WORDs	zero-terminated list of offsets which need to be patched to
		  enable critical-section calls (see INT 2A/AH=80h)
 -1	BYTE	unused padding
---start of actual SDA---
 00h	BYTE	critical error flag ("ErrorMode")
 01h	BYTE	InDOS flag (count of active INT 21 calls)
 02h	BYTE	drive on which current critical error occurred, or FFh
		(DR-DOS sets to drive number during INT 24, 00h otherwise)
 03h	BYTE	locus of last error
 04h	WORD	extended error code of last error
 06h	BYTE	suggested action for last error
 07h	BYTE	class of last error
 08h	DWORD	ES:DI pointer for last error
 0Ch	DWORD	current DTA (Disk Transfer Address)
		note: may point into SDA during the DOS EXEC function
		  (see AH=4Bh), so programs which swap the SDA must be
		  prepared to move the DTA to a private buffer if they
		  might be invoked during an EXEC
 10h	WORD	current PSP
 12h	WORD	stores SP across an INT 23
 14h	WORD	return code from last process termination (zerod after reading
		  with AH=4Dh)
 16h	BYTE	current drive
 17h	BYTE	extended break flag
---remainder need only be swapped if in DOS---
 18h	WORD	value of AX on call to INT 21
 1Ah	WORD	PSP segment for sharing/network
 1Ch	WORD	network machine number for sharing/network (0000h = us)
 1Eh	WORD	first usable memory block found when allocating memory
 20h	WORD	best usable memory block found when allocating memory
 22h	WORD	last usable memory block found when allocating memory
 24h	WORD	memory size in paragraphs (used only during initialization)
 26h	WORD	last entry checked during directory search
 28h	BYTE	flag: INT 24 returned Fail
 29h	BYTE	flags: allowable INT 24 actions (passed to INT 24 in AH)
 2Ah	BYTE	directory flag (00h directory, 01h file)
 2Bh	BYTE	flag: FFh if Ctrl-Break termination, 00h otherwise
 2Ch	BYTE	flag: allow embedded blanks in FCB
 2Dh	BYTE	padding (unused)
 2Eh	BYTE	day of month
 2Fh	BYTE	month
 30h	WORD	year - 1980
 32h	WORD	number of days since 1-1-1980
 34h	BYTE	day of week (0 = Sunday)
 35h	BYTE	flag: console swapped during read from device
 36h	BYTE	flag: safe to call INT 28 if nonzero
 37h	BYTE	flag: if nonzero, INT 24 Abort turned into INT 24 Fail
		(set only during process termination)
 38h 26 BYTEs	device driver request header (see #1382 at INT 2F/AX=0802h)
 52h	DWORD	pointer to device driver entry point (used in calling driver)
 56h 22 BYTEs	device driver request header for I/O calls
 6Ch 14 BYTEs	device driver request header for disk status check
 7Ah	DWORD	pointer to device I/O buffer???
 7Eh	WORD	???
 80h	WORD	???
 82h	BYTE	type of PSP copy (00h=simple for INT 21/AH=26h, FFh=make child)
 83h	BYTE	padding (unused)
 84h  3 BYTEs	24-bit user number (see AH=30h)
 87h	BYTE	OEM number (see #0619 at AH=30h)
 88h	WORD	offset to error code conversion table for INT 25/INT 26
 8Ah  6 BYTEs	CLOCK$ transfer record (see #0893)
 90h	BYTE	device I/O buffer for single-byte I/O functions
 91h	BYTE	padding??? (unused)
 92h 128 BYTEs	buffer for filename
112h 128 BYTEs	buffer for filename
192h 21 BYTEs	findfirst/findnext search data block (see #0839 at AH=4Eh)
1A7h 32 BYTEs	directory entry for found file (see #0580 at AH=11h)
1C7h 81 BYTEs	copy of current directory structure for drive being accessed
218h 11 BYTEs	FCB-format filename for device name comparison
223h	BYTE	terminating NUL for above filename
224h 11 BYTEs	wildcard destination specification for rename (FCB format)
22Fh	BYTE	terminating NUL for above spec
230h	BYTE	???
231h	WORD	destination file/directory starting sector
233h  5 BYTEs	???
238h	BYTE	extended FCB file attribute
239h	BYTE	type of FCB (00h regular, FFh extended)
23Ah	BYTE	directory search attributes
23Bh	BYTE	file open/access mode
23Ch	BYTE	file found/delete flag
		bit 0: file found
		bit 4: file deleted
23Dh	BYTE	flag: device name found on rename, or file not found
23Eh	BYTE	splice flag (file name and directory name together)
23Fh	BYTE	flag indicating how DOS function was invoked
		(00h = direct INT 20/INT 21, FFh = server call AX=5D00h)
240h	BYTE	sector position within cluster
241h	BYTE	flag: translate sector/cluster (00h no, 01h yes)
242h	BYTE	flag: 00h if read, 01h if write
243h	BYTE	current working drive number
244h	BYTE	cluster factor
245h	BYTE	flag: cluster split mode
246h	BYTE	line edit (AH=0Ah) insert mode flag (nonzero = on)
247h	BYTE	canonicalized filename referred to existing file/dir if FFh
248h	BYTE	volume ID flag
249h	BYTE	type of process termination (00h-03h) (see AH=4Dh)
24Ah	BYTE	file create flag (00h = no, search only)
24Bh	BYTE	value with which to replace first byte of deleted file's name
		  (normally E5h, but 00h as described under INT 21/AH=13h)
24Ch	DWORD	pointer to Drive Parameter Block for critical error invocation
		temp: used during process termination
250h	DWORD	pointer to stack frame containing user registers on INT 21
254h	WORD	stores SP across INT 24
256h	DWORD	pointer to DOS Drive Parameter Block for ???
25Ah	WORD	saving partial cluster number
25Ch	WORD	temp: sector of work current cluster
25Eh	WORD	high part of cluster number (only low byte referenced)
260h	WORD	??? temp
262h	BYTE	Media ID byte returned by AH=1Bh,1Ch
263h	BYTE	padding (unused)
264h	DWORD	pointer to device header when filename is character device
268h	DWORD	pointer to current SFT
26Ch	DWORD	pointer to current directory structure for drive being accessed
270h	DWORD	pointer to caller's FCB
274h	WORD	number of SFT to which file being opened will refer
276h	WORD	temporary storage for file handle
278h	DWORD	pointer to a JFT entry in process handle table
		  (see #0603 at AH=26h)
27Ch	WORD	offset in DOS DS of first filename argument
27Eh	WORD	offset in DOS DS of second filename argument
280h	WORD	offset of last component in pathname or FFFFh
282h	WORD	offset of transfer address to add
284h	WORD	last relative cluster within file being accessed
286h	WORD	temp: absolute cluster number being accessed
288h	WORD	directory sector number
28Ah	WORD	??? current cluster number
28Ch	WORD	current relative sector number within file
28Eh	WORD	current sector number
290h	WORD	current byte offset within sector
292h	DWORD	current offset in file
296h	DWORD	temp: file byte count
29Ah	WORD	temp: file byte count
29Ch	WORD	free file cluster entry
29Eh	WORD	last file cluster entry
2A0h	WORD	next file cluster number
2A2h	DWORD	number of bytes appended to file
2A6h	DWORD	pointer to current work disk buffer
2AAh	DWORD	pointer to working SFT
2AEh	WORD	used by INT 21 dispatcher to store caller's BX
2B0h	WORD	used by INT 21 dispatcher to store caller's DS
2B2h	WORD	temporary storage while saving/restoring caller's registers
2B4h	DWORD	pointer to prev call frame (offset 250h) if INT 21 reentered
		also switched to for duration of INT 24
2B8h 21 BYTEs	FindFirst search data for source file(s) of a rename operation
		(see #0839 at AH=4Eh)
2CDh 32 BYTEs	directory entry for file being renamed (see #0580 at AH=11h)
2EDh 331 BYTEs	critical error stack
   403h	 35 BYTEs scratch SFT
438h 384 BYTEs	disk stack (functions greater than 0Ch, INT 25,INT 26)
5B8h 384 BYTEs	character I/O stack (functions 01h through 0Ch)
---DOS 3.2,3.3x only---
738h	BYTE	device driver lookahead flag (usually printer) (see AH=64h)
739h	BYTE	volume change flag
73Ah	BYTE	flag: virtual open
73Bh	BYTE	???
SeeAlso: #0895

Format of CLOCK$ transfer record:
Offset	Size	Description	(Table 0893)
 00h	WORD	number of days since 1-Jan-1980
 02h	BYTE	minutes
 03h	BYTE	hours
 04h	BYTE	hundredths of second
 05h	BYTE	seconds
--------D-215D07-----------------------------
INT 21 U - DOS 3.1+ network - GET REDIRECTED PRINTER MODE
	AX = 5D07h
Return: DL = mode
	    00h redirected output is combined
	    01h redirected output in separate print jobs
SeeAlso: AX=5D08h,AX=5D09h,INT 2F/AX=1125h
--------D-215D08-----------------------------
INT 21 U - DOS 3.1+ network - SET REDIRECTED PRINTER MODE
	AX = 5D08h
	DL = mode
	    00h redirected output is combined
	    01h redirected output placed in separate jobs, start new print job
		now
SeeAlso: AX=5D07h,AX=5D09h,INT 2F/AX=1125h
--------D-215D09-----------------------------
INT 21 U - DOS 3.1+ network - FLUSH REDIRECTED PRINTER OUTPUT
	AX = 5D09h
Notes:	forces redirected printer output to be printed, and starts a new print
	  job
	this function is also supported by 10Net, which calls it Terminate All
	  Spool Jobs, and does not flush if in "combine" mode
SeeAlso: AX=5D07h,AX=5D08h,INT 2F/AX=1125h
--------D-215D0A-----------------------------
INT 21 - DOS 3.1+ - SET EXTENDED ERROR INFORMATION
	AX = 5D0Ah
	DS:DX -> 11-word DOS parameter list (see #0891)
Return: nothing.  next call to AH=59h will return values from fields AX,BX,CX,
	  DX,DI, and ES in corresponding registers
Notes:	documented for DOS 5+, but undocumented in earlier versions
	the MS-DOS Programmer's Reference incorrectly states that this call was
	  introduced in DOS 4, and fails to mention that the ERROR structure
	  passed to this function is a DOS parameter list.
BUGS:	DR-DOS 3.41 and 5.0 read the value for ES from the DS field of the
	  DPL; fortunately, MS-DOS ignores the DS field, allowing a generic
	  routine which sets both DS and ES fields to the same value
	Novell DOS 7 does not save the pointer, which is always reported as
	  0000h:0000h by AH=59h
SeeAlso: AH=59h/BX=0000h
--------D-215D0B-----------------------------
INT 21 OU - DOS 4.x only internal - GET DOS SWAPPABLE DATA AREAS
	AX = 5D0Bh
Return: CF set on error
	    AX = error code (see #0885)
	CF clear if successful
	    DS:SI -> swappable data area list (see #0894)
Notes:	copying and restoring the swappable data areas allows DOS to be
	  reentered unless it is in a critical section delimited by calls to
	  INT 2A/AH=80h and INT 2A/AH=81h,82h
	SHARE and other DOS utilities consult the byte at offset 04h in the
	  DOS data segment (see INT 2F/AX=1203h) to determine the SDA format
	  in use: 00h = DOS 3.x, 01h = DOS 4.0-6.0, other = error.
	DOS 5+ use the SDA format listed below, but revert back to the DOS 3.x
	  call for finding the SDA (see #0892)
SeeAlso: AX=5D06h,INT 2A/AH=80h,INT 2A/AH=81h,INT 2A/AH=82h,INT 2F/AX=1203h

Format of DOS 4.x swappable data area list:
Offset	Size	Description	(Table 0894)
 00h	WORD	count of data areas
 02h  N BYTEs	"count" copies of data area record
		Offset	Size	Description
		 00h	DWORD	address
		 04h	WORD	length and type
				bit 15 set if swap always, clear if swap in DOS
				bits 14-0: length in bytes
SeeAlso: #0895

Format of DOS 4.0-6.0 swappable data area:
Offset	Size	Description	(Table 0895)
 -34	BYTE	printer echo flag (00h off, FFh active)
 -31	BYTE	current switch character (ignored by DOS 5+)
 -28	BYTE	incremented on each INT 21/AX=5E01h call
 -27 16 BYTEs	machine name set by INT 21/AX=5E01h
 -11  5 WORDs	zero-terminated list of offsets which need to be patched to
		  enable critical-section calls (see INT 2A/AH=80h)
		(all offsets are 0D0Ch, but this list is still present for
		  DOS 3.x compatibility)
 -1	BYTE	unused padding
---start of actual SDA---
 00h	BYTE	critical error flag ("ErrorMode")
 01h	BYTE	InDOS flag (count of active INT 21 calls)
 02h	BYTE	drive on which current critical error occurred or FFh
 03h	BYTE	locus of last error
 04h	WORD	extended error code of last error
 06h	BYTE	suggested action for last error
 07h	BYTE	class of last error
 08h	DWORD	ES:DI pointer for last error
 0Ch	DWORD	current DTA (Disk Transfer Address)
		note: may point into SDA during the DOS EXEC function
		  (see AH=4Bh), so programs which swap the SDA must be
		  prepared to move the DTA to a private buffer if they
		  might be invoked during an EXEC
 10h	WORD	current PSP
 12h	WORD	stores SP across an INT 23
 14h	WORD	return code from last process termination (zerod after reading
		  with AH=4Dh)
 16h	BYTE	current drive
 17h	BYTE	extended break flag
 18h	BYTE	flag: code page switching
 19h	BYTE	flag: copy of previous byte in case of INT 24 Abort
---remainder need only be swapped if in DOS---
 1Ah	WORD	value of AX on call to INT 21
 1Ch	WORD	PSP segment for sharing/network
 1Eh	WORD	network machine number for sharing/network (0000h = us)
 20h	WORD	first usable memory block found when allocating memory
 22h	WORD	best usable memory block found when allocating memory
 24h	WORD	last usable memory block found when allocating memory
 26h	WORD	memory size in paragraphs (used only during initialization)
 28h	WORD	last entry checked during directory search
 2Ah	BYTE	flag: nonzero if INT 24 Fail
 2Bh	BYTE	flags: allowable INT 24 responses (passed to INT 24 in AH)
 2Ch	BYTE	flag: do not set directory if nonzero
 2Dh	BYTE	flag: program aborted by ^C
 2Eh	BYTE	flag: allow embedded blanks in FCB
		may also allow use of "*" wildcard in FCBs
 2Fh	BYTE	padding (unused)
 30h	BYTE	day of month
 31h	BYTE	month
 32h	WORD	year - 1980
 34h	WORD	number of days since 1-1-1980
 36h	BYTE	day of week (0 = Sunday)
 37h	BYTE	flag: console swapped during read from device
 38h	BYTE	flag: safe to call INT 28 if nonzero
 39h	BYTE	flag: abort currently in progress, turn INT 24 Abort into Fail
 3Ah 30 BYTEs	device driver request header (see #1382 at INT 2F/AX=0802h) for
		  device calls
 58h	DWORD	pointer to device driver entry point (used in calling driver)
 5Ch 22 BYTEs	device driver request header for I/O calls
 72h 14 BYTEs	device driver request header for disk status check
 80h	DWORD	pointer to device I/O buffer
 84h	WORD	???
 86h	WORD	??? (0)
 88h	BYTE	type of PSP copy (00h=simple for INT 21/AH=26h, FFh=make child)
 89h	DWORD	start offset of file region to lock/unlock
 8Dh	DWORD	length of file region to lock/unlock
 91h	BYTE	padding (unused)
 92h  3 BYTEs	24-bit user number (see AH=30h)
 95h	BYTE	OEM number (see #0619 at AH=30h)
 96h  6 BYTEs	CLOCK$ transfer record (see #0893 at AX=5D06h)
 9Ch	BYTE	device I/O buffer for single-byte I/O functions
 9Dh	BYTE	padding???
 9Eh 128 BYTEs	buffer for filename
11Eh 128 BYTEs	buffer for filename
19Eh 21 BYTEs	findfirst/findnext search data block (see #0839 at AH=4Eh)
1B3h 32 BYTEs	directory entry for found file (see #0619 at AH=11h)
1D3h 88 BYTEs	copy of current directory structure for drive being accessed
22Bh 11 BYTEs	FCB-format filename for device name comparison
236h	BYTE	terminating NUL for above filename
237h 11 BYTEs	wildcard destination specification for rename (FCB format)
242h	BYTE	terminating NUL for above filespec
243h	BYTE	???
244h	WORD	???
246h  5 BYTEs	???
24Bh	BYTE	extended FCB file attributes
24Ch	BYTE	type of FCB (00h regular, FFh extended)
24Dh	BYTE	directory search attributes
24Eh	BYTE	file open/access mode
24Fh	BYTE	??? flag bits
		reportedly 00h when deleting a file under MSDOS 5.0
250h	BYTE	flag: device name found on rename, or file not found
251h	BYTE	splice flag??? (file name and directory name together)
252h	BYTE	flag indicating how DOS function was invoked
		(00h = direct INT 20/INT 21, FFh = server call AX=5D00h)
253h	BYTE	sector position within cluster
254h	BYTE	??? (flag: translate sector/cluster)
255h	BYTE	??? (flag: 00h if read, 01h if write)
256h	BYTE	current working drive number
257h	BYTE	cluster factor
258h	BYTE	???
259h	BYTE	line edit (AH=0Ah) insert mode flag (nonzero = on)
25Ah	BYTE	canonicalized filename referred to existing file/dir if FFh
25Bh	BYTE	volume ID flag
25Ch	BYTE	type of process termination (00h-03h) (see AH=4Dh)
25Dh	BYTE	???
25Eh	BYTE	??? file create flag (00h = no, search only)
25Fh	BYTE	??? (value for deleted file's first byte)
260h	DWORD	pointer to Drive Parameter Block for critical error invocation
264h	DWORD	pointer to stack frame containing user registers on INT 21
268h	WORD	stores SP across INT 24
26Ah	DWORD	pointer to DOS Drive Parameter Block for ???
26Eh	WORD	segment of disk buffer
270h	WORD	??? (saving partial cluster number)
272h	WORD	??? (temp: sector of work current cluster)
274h	WORD	??? (high part of cluster number)
276h	WORD	??? (temp)
278h	BYTE	Media ID byte returned by AH=1Bh,1Ch
279h	BYTE	??? (doesn't seem to be referenced)
27Ah	DWORD	pointer to device header if filename is character device
27Eh	DWORD	pointer to current SFT
282h	DWORD	pointer to current directory structure for drive being accessed
286h	DWORD	pointer to caller's FCB
28Ah	WORD	SFT index to which file being opened will refer
28Ch	WORD	temporary storage for file handle
28Eh	DWORD	pointer to a JFT entry in process handle table
		  (see #0603 at AH=26h)
292h	WORD	offset in DOS DS of first filename argument
294h	WORD	offset in DOS DS of second filename argument
296h	WORD	??? (offset of last component in pathname or FFFFh)
298h	WORD	offset of transfer address to add
29Ah	WORD	last relative cluster within file being accessed
29Ch	WORD	temp: absolute cluster number being accessed
29Eh	WORD	directory sector number
2A0h	WORD	???
2A2h	WORD	??? directory cluster number
2A4h	DWORD	current relative sector number within file
2A8h	DWORD	??? (current sector number)
2ACh	WORD	??? (current byte offset within sector)
2AEh	DWORD	current offset in file
2B2h	WORD	???
2B4h	WORD	bytes in partial sector
2B6h	WORD	number of sectors
2B8h	WORD	??? (free file cluster entry)
2BAh	WORD	??? (last file cluster entry)
2BCh	WORD	??? (next file cluster number)
2BEh	DWORD	number of bytes appended to file
2C2h	DWORD	pointer to current work disk buffer
2C6h	DWORD	pointer to working SFT
2CAh	WORD	used by INT 21 dispatcher to store caller's BX
2CCh	WORD	used by INT 21 dispatcher to store caller's DS
2CEh	WORD	temporary storage while saving/restoring caller's registers
2D0h	DWORD	pointer to prev call frame (offset 264h) if INT 21 reentered
		also switched to for duration of INT 24
2D4h	WORD	open mode/action for INT 21/AX=6C00h
2D6h	BYTE	??? (set to 00h by INT 21h dispatcher, 02h when a read is
		  performed, and 01h or 03h by INT 21/AX=6C00h)
2D7h	WORD	??? apparently unused
2D9h	DWORD	stored ES:DI for AX=6C00h
2DDh	WORD	extended file open action code (see #0966 at AX=6C00h)
2DFh	WORD	extended file open attributes (see #0965 at AX=6C00h)
2E1h	WORD	extended file open file mode (see AX=6C00h)
2E3h	DWORD	pointer to filename to open (see AX=6C00h)
2E7h	WORD	??? temp DX storage or 0000h or temp data buffer size from
		  disk buffer
2E9h	WORD	???
2EBh	BYTE	???
2ECh	WORD	stores DS during call to [List-of-Lists + 37h]
2EEh	WORD	???
2F0h	BYTE	???
2F1h	WORD	??? bit flags
2F3h	DWORD	pointer to user-supplied filename
2F7h	DWORD	pointer to ???
2FBh	WORD	stores SS during call to [List-of-Lists + 37h]
2FDh	WORD	stores SP during call to [List-of-Lists + 37h]
2FFh	BYTE	flag, nonzero if stack switched in calling [List-of-Lists+37h]
300h 21 BYTEs	FindFirst search data for source file(s) of a rename operation
		(see #0839 at AH=4Eh)
315h 32 BYTEs	directory entry for file being renamed (see #0580 at AH=11h)
335h 331 BYTEs	critical error stack
480h 384 BYTEs	disk stack (functions greater than 0Ch, INT 25,INT 26)
600h 384 BYTEs	character I/O stack (functions 01h through 0Ch)
780h	BYTE	device driver lookahead flag (usually printer) (see AH=64h)
781h	BYTE	volume change flag
782h	BYTE	flag: virtual open
783h	BYTE	???
784h	WORD	???
786h	WORD	???
788h	WORD	???
78Ah	WORD	???
SeeAlso: #0892,#0894
--------D-215E00-----------------------------
INT 21 - DOS 3.1+ network - GET MACHINE NAME
	AX = 5E00h
	DS:DX -> 16-byte buffer for ASCIZ machine name
Return: CF clear if successful
	    CH = validity
		00h name invalid
		nonzero valid
		    CL = NetBIOS number for machine name
		    DS:DX buffer filled with blank-paded name
	CF set on error
	    AX = error code (01h) (see #0885 at AH=59h)
Note:	supported by OS/2 v1.3+ compatibility box, PC-NFS
SeeAlso: AX=5E01h
--------N-215E00-----------------------------
INT 21 - 10NET v5.0 - GET MACHINE NAME
	AX = 5E00h
Return: CL = redirector's NetBIOS name number
	ES:DI -> network node ID
SeeAlso: AX=5E01h"10NET"
--------D-215E01CH00-------------------------
INT 21 - DOS 3.1+ network - SET MACHINE NAME
	AX = 5E01h
	CH = 00h undefine name (make it invalid)
	   <> 0	 define name
	CL = name number
	DS:DX -> 15-character blank-padded ASCIZ name
SeeAlso: AX=5E00h
--------N-215E01-----------------------------
INT 21 - 10NET v5.0 - GET LOCAL 10NET CONFIGURATION TABLE
	AX = 5E01h
	CX = length of buffer
	DS:DX -> buffer for 10Net configuration table (see #821)
SeeAlso: AX=5E00h"10NET",INT 6F/AH=02h,INT 6F/AH=03h

Format of 10Net Configuration Table:
Offset	Size	Description	(Table 0896)
 00h  8 BYTEs	user name
 08h 15 BYTEs	node ID
 17h  3 BYTEs	unique portion of Ethernet address
 1Ah	BYTE	Who group number
 1Bh	WORD	services mask (see #0898)
 1Dh	DWORD	serial number
 21h	BYTE	maximum concurrent users with same serial number allowed on net
 22h	BYTE	chat mask (see #0899)
 23h	BYTE	internal system bits (see #0900)
 24h  9 BYTEs	version number in format MM.mm.xxx
 2Dh	BYTE	flag: 01h if machine is a PS/2
 2Eh	BYTE	flag: 03h if 80386
 2Fh	BYTE	spool termination mode: 01h concatenate, 02h truncate
		(see AX=5D09h)
 30h	WORD	autospool timeout in clock ticks
 32h	WORD	monitor timeout in clock ticks
 34h	WORD	unused
 36h	WORD	chat timeout in clock ticks
 38h	WORD	netBIOS session timeout in half-seconds
 3Ah	WORD	datagram send timeout in seconds
 3Ch	WORD	keyboard value for initiating chat mode
 3Eh	WORD	Who timeout in clock ticks
 40h	BYTE	flag: 01h if server should process rom NetBIOS Post return
 41h	BYTE	flag: 01h if FCBs should be recycled
 42h  3 BYTEs	signature "DBG"
 45h	BYTE	last interrupt (21h or 6Fh)
 46h	BYTE	last INT 21 AH value
 47h	BYTE	last INT 6F AH value
 48h	WORD	last item posted
 4Ah	WORD	last item free-posted
 4Ch	WORD	last item handled by server
 4Eh	WORD	last redirector send NCB
 50h	WORD	last redirector receive NCB
 52h  4 BYTEs	signature "TABL"
 56h	WORD	offset of datagram buffer table header (see #0897)
 58h	WORD	offset of chat buffer table header (see #0897)
 5Ah	WORD	offset of Raw buffer table header (see #0897)
 5Ch	WORD	offset of Workstation buffer table header (see #0897)
 5Eh	WORD	offset of server receive-any table header (see #0897)
 60h	WORD	offset of Tiny buffer table header (see #0897)
 62h	WORD	offset of zero-length buffer table (NCBs) (see #0897)
 64h	WORD	offset of Rdr (Redirector Mount) table header (see #0897)
 66h	WORD	offset of Ntab (Redirector Session) table header (see #0897)
 68h	WORD	offset of FCB table header (see #0897)
 6Ah	WORD	offset of user file handle table header (see #0897)
 6Ch	WORD	offset of workstation printer RDR extension table header
 6Eh	WORD	offset of server shared device table header (see #0897)
 70h	WORD	offset of server connection table header (see #0897)
 72h	WORD	offset of server login table header (see #0897)
 74h	WORD	offset of server file table header (see #0897)
 76h	WORD	offset of server shared file table header (see #0897)
 78h	WORD	offset of server record lock table header (see #0897)
 7Ah	WORD	offset of remote printer claim table header (see #0897)
 7Ch	WORD	offset of remote printer device table header (see #0897)
 7Eh	WORD	offset of print server mount table header (see #0897)
 80h	WORD	offset of print server sessions table header (see #0897)
 82h	WORD	offset of print server print job structure table header
 84h	WORD	offset of print server pooled device table header (see #0897)
 86h	WORD	size of workstation buffer
 88h	WORD	size of server receive-any buffer
 8Ah	WORD	size of server raw I/O buffer
 8Ch  6 BYTEs	reserved
 92h	DWORD	pointer to profile pathname
 96h	BYTE	datagram retry count
 97h	BYTE	NetBIOS LAN adapter number
 98h  6 BYTEs	physical Ethernet address
 9Eh	BYTE	NetBIOS server name number
 9Fh	BYTE	NetBIOS redirector name number
 A0h	BYTE	10Net interrupt number
 A1h	BYTE	flag: chat is loaded
 A2h	BYTE	flag: INT 6F APIs permanently loaded
 A3h	BYTE	flag: file security present
 A4h	WORD	reserved
 A6h	BYTE	fixed mount bitmask for drives A:-H:
 A7h	BYTE	reserved
 A8h	WORD	10Net system flags (see #0901)
 AAh	BYTE	monitor flags (see #0902)
 ABh  5 BYTEs	reserved
 B0h	WORD	offset of monitor timer block
 B2h	WORD	offset of server timer block
 B4h	WORD	offset of chat timer block
 B6h	WORD	timer chain
 B8h  4 BYTEs	signature "TALS"
 BCh	WORD	number of 10Net sends
 BEh	WORD	number of 10Net receives
 C0h	WORD	number of no-buffer conditions
 C2h	WORD	number of dropped posted messages
 C4h	WORD	number of server NCB errors
 C6h	WORD	number of redirector NCB errors
 C8h	WORD	number of datagram send/receive errors
 CAh	WORD	number of dropped Whos
 CCh	WORD	number of dropped submits
 CEh	WORD	number of session aborts
 D0h	BYTE	number of NetBIOS interface-busy errors
 D1h	BYTE	last NetBIOS bad post command
 D2h	BYTE	last NetBIOS bad redirector command
 D3h	BYTE	do send datagram send/receive error command
 D4h	DWORD	-> DOS system parameter table
 D8h	WORD	number of DOS physical drives
 DAh	WORD	offset of DOS PSP field in DOS data segment
 DCh	WORD	offset of in-DOS flag in DOS data segment
 DEh	WORD	DOS data segment
 E0h	WORD	offset of DOS SFT in DOS data segment
 E2h	WORD	offset of number-of-physical-units field in DOS data segment
 E4h	WORD	10Net code segment
 E6h	WORD	10Net data segment
 E8h	WORD	10Net common server segment
 EAh	WORD	10Net file server segment
 ECh	WORD	10Net print server segment
 EEh	WORD	10Net remote printer segment
Note:	documentation lists field at offset D0h as a WORD, but all following
	  offsets are as though it were a BYTE; if it is indeed a WORD, all
	  offsets after D0h must be increased by one byte

Format of 10Net Table Header:
Offset	Size	Description	(Table 0897)
 -16  4 BYTEs	table identifier
 -12	WORD	peak number of tables allocated
 -10	WORD	number of tables currently in use
 -8	WORD	total number of tables
 -6	WORD	size of each table
 -4	WORD	offset of first allocated table
 -2	WORD	offset of first free table

Bitfields for 10NET services mask:
Bit(s)	Description	(Table 0898)
 0	workstation
 1	file server
 2	print queue server
 3	de-spool server

Bitfields for 10NET chat mask:
Bit(s)	Description	(Table 0899)
 0	chat permitted
 1	bell enabled
 2	chat keyboard initiated
 3	in INT 16 handler
 4	in Get Input
 5	display has timed out
 6	chat is idle

Bitfields for 10NET internal system bits:
Bit(s)	Description	(Table 0900)
 0	submit permitted
 1	submit initiated
 2	submit executing
 3	internal client call/chat/spool/autospool
 4	in spool termination
 5	print permitted
 6	waiting for keyboard input

Bitfields for 10NET System Flags:
Bit(s)	Description	(Table 0901)
 0	in NetBIOS
 1	processing INT 28
 2	is server
 3	in net user-DOS function
 4	in DOS user-DOS function
 5	in net for user non-DOS function
 6	in server DOS function
 7	in server non-DOS function
 8	in terminate
 10	in user on server request
 13	in DOS for user on server
 14	disable critical error handler

Bitfields for Monitor Flags:
Bit(s)	Description	(Table 0902)
 0	waiting for monitor response
 4	in monitor get-input routine
 5	monitor display timeout
 6	sensing for escape key
--------D-215E02-----------------------------
INT 21 - DOS 3.1+ network - SET NETWORK PRINTER SETUP STRING
	AX = 5E02h
	BX = redirection list index (see AX=5F02h)
	CX = length of setup string
	DS:SI -> setup string
Return: CF clear if successful
	CF set on error
		 AX = error code (01h) (see #0885 at AH=59h)
Note:	also supported by 10NET v5.0
SeeAlso: AX=5E03h,INT 2F/AX=111Fh
--------D-215E03-----------------------------
INT 21 - DOS 3.1+ network - GET NETWORK PRINTER SETUP STRING
	AX = 5E03h
	BX = redirection list index (see AX=5F02h)
	ES:DI -> 64-byte buffer for setup string
Return: CF clear if successful
	    CX = length of setup string
	    ES:DI buffer filled
	CF set on error
	    AX = error code (01h) (see #0885 at AH=59h)
Note:	also supported by 10NET v5.0, but 10NET is documented as using DS:SI
	  instead of ES:DI
SeeAlso: AX=5E02h,INT 2F/AX=111Fh
--------D-215E04-----------------------------
INT 21 - DOS 3.1+ network - SET PRINTER MODE
	AX = 5E04h
	BX = redirection list index (see AX=5F02h)
	DX = mode
	    bit 0: set if binary, clear if text (tabs expanded to blanks)
Return: CF set on error
		 AX = error code (see #0885 at AH=59h)
	CF clear if successful
Note:	calls INT 2F/AX=111Fh with 5E04h on stack
SeeAlso: AX=5E05h"DOS",INT 2F/AX=111Fh
--------N-215E04-----------------------------
INT 21 - 10NET v5.0 - INITIATE PRINT JOB
	AX = 5E04h
	BX = zero-based redirection list index (see AX=5F02h)
	DS:DX -> extended workstation printer setup structure (see #0903)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at AH=59h)
SeeAlso: AX=5E05h"10NET",AX=5E06h"10NET"

Format of 10NET extended workstation printer setup structure:
Offset	Size	Description	(Table 0903)
 00h	BYTE	notification flags (see #0904)
 01h	BYTE	job control mask (see #0905)
 02h	WORD	days to retain file
 04h	WORD	test print length
 06h	BYTE	number of copies to print
 07h	BYTE	compression algorithm
 08h	BYTE	tab width (00h = don't expand)
 09h	BYTE	initiation type (00h normal, 01h non-spooled)
 0Ah 38 BYTEs	job start operation notification instructions
 30h 32 BYTEs	comment for job
 50h 64 BYTEs	output filename or non-spooled file

Bitfields for 10NET notification flags:
Bit(s)	Description	(Table 0904)
 0	user at print start
 1	operator at start, with reply
 2	user at print completion
 3	operator at completion, with reply
 4	user on queue switch
 5	operator on queue switch, with reply
 6	user on print error

Bitfields for 10NET job control mask:
Bit(s)	Description	(Table 0905)
 0	print banner page
 1	eject page at end of job
 2	mark as "held" (queue but don't print)
 3	rush job (queue at top)
 4	overwrite file with zeros before deletion
 5	hyperspool if possible
--------D-215E05-----------------------------
INT 21 - DOS 3.1+ network - GET PRINTER MODE
	AX = 5E05h
	BX = redirection list index (see AX=5F02h)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    DX = printer mode (see AX=5E04h)
Note:	calls INT 2F/AX=111Fh with 5E05h on stack
SeeAlso: AX=5E04h"DOS",INT 2F/AX=111Fh
--------N-215E05-----------------------------
INT 21 - 10NET v5.0 - TERMINATE PRINT JOB
	AX = 5E05h
	BX = zero-based redirection list index (see AX=5F02h)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at AH=59h)
Note:	this call resets the spool termination mode to "truncate"
	  (see AX=5D08h)
SeeAlso: AX=5E04h"10NET",AX=5E06h
--------N-215E06-----------------------------
INT 21 - 10NET v5.0 - GET/SET 10NET WORKSTATION PRINTER SETUP STRUCTURE
	AX = 5E06h
	BX = zero-based redirection list index (see AX=5F02h)
	CX = operation (06h set, 07h get)
	DS:DX -> buffer for setup structure (same as first nine bytes of
		  workstation printer setup) (see #0903)
Return: CF clear if successful
	    DS:DX buffer updated on get
	CF set on error
	    AX = error code (see #0885 at AH=59h)
SeeAlso: AX=5E04h"10NET",AX=5E05h"10NET"
--------D-215F00-----------------------------
INT 21 - DOS 3.1+ network - GET REDIRECTION MODE
	AX = 5F00h
	BL = redirection type
	    03h printer
	    04h disk drive
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    BH = redirection state
		00h off
		01h on
Note:	calls INT 2F/AX=111Eh with AX on top of the stack
SeeAlso: AX=5F01h,INT 2F/AX=111Eh
--------D-215F01-----------------------------
INT 21 - DOS 3.1+ network - SET REDIRECTION MODE
	AX = 5F01h
	BL = redirection type
	    03h printer
	    04h disk drive
	BH = redirection state
	    00h off
	    01h on
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
Notes:	when redirection is off, the local device (if any) rather than the
	  remote device is used
	calls INT 2F/AX=111Eh with AX on top of the stack
SeeAlso: AX=5F00h,INT 2F/AX=111Eh,INT 60/AX=0002h
--------D-215F02-----------------------------
INT 21 - DOS 3.1+ network - GET REDIRECTION LIST ENTRY
	AX = 5F02h
	BX = zero-based redirection list index
	CX = 0000h (LANtastic)
	DS:SI -> 16-byte buffer for ASCIZ local device name or drive letter
		  followed by colon
	ES:DI -> 128-byte buffer for ASCIZ network name
Return: CF clear if successful
	    BH = device status
		00h valid
		01h invalid
		02h valid (connected from inside Windows for Workgroups v3.11)
	    BL = device type
		03h printer
		04h disk drive
	    CX = user data previously set with AX=5F03h
	    DS:SI and ES:DI buffers filled
	    DX,BP destroyed
	CF set on error
	    AX = error code (01h,12h) (see #0885 at AH=59h)
Notes:	this function is passed through to INT 2F/AX=111Eh by the DOS kernel
	error code 12h is returned if BX is greater than the size of the list
	also supported by Banyan VINES, PC-NFS, LANtastic, and 10NET
	the returned device name may or may not include a colon, depending on
	  the network software
SeeAlso: AX=5F03h,AX=5F46h,INT 2F/AX=111Eh
--------D-215F03-----------------------------
INT 21 - DOS 3.1+ network - REDIRECT DEVICE
	AX = 5F03h
	BL = device type
	    03h printer
	    04h disk drive
	CX = user data to save
		0000h for LANtastic
		4E57h ("NW") for NetWare 4.0 requester
	DS:SI -> ASCIZ local device name (16 bytes max)
	ES:DI -> ASCIZ network name + ASCIZ password (128 bytes max total)
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,03h,05h,08h,0Fh,12h) (see #0885 at AH=59h)
Notes:	if device type is disk drive, DS:SI must point at either a null string
	  or a string consisting the drive letter followed by a colon; if a
	  null string, the network attempts to access the destination without
	  redirecting a local drive
	the DOS kernel calls INT 2F/AX=111Eh with AX on top of the stack
	also supported by Banyan VINES, LANtastic, and 10NET
SeeAlso: AX=5F02h,AX=5F04h,INT 2F/AX=111Eh,INT 60/AX=0002h
--------D-215F04-----------------------------
INT 21 - DOS 3.1+ network - CANCEL REDIRECTION
	AX = 5F04h
	DS:SI -> ASCIZ local device name or path
	CX = 4E57h ("NW") for NetWare 4.0 requester
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,03h,05h,08h,0Fh,12h) (see #0885 at AH=59h)
Notes:	the DS:SI string must be either a local device name, a drive letter
	  followed by a colon, or a network directory beginning with two
	  backslashes
	the DOS kernel calls INT 2F/AX=111Eh with AX on top of the stack
	also supported by Banyan VINES, LANtastic, and 10NET
SeeAlso: AX=5F03h,INT 2F/AX=111Eh,INT 60/AX=0003h
--------D-215F05-----------------------------
INT 21 - DOS 4+ network - GET EXTENDED REDIRECTION LIST ENTRY
	AX = 5F05h
	BX = redirection list index
	DS:SI -> buffer for ASCIZ source device name
	ES:DI -> buffer for destination ASCIZ network path
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX = server's network process ID handle (10NET)
	    BH = device status flag (bit 0 clear if valid)
	    BL = device type (03h if printer, 04h if drive)
	    CX = stored parameter value (user data) from AX=5F03h
	    BP = NETBIOS local session number
		 DS:SI buffer filled
	    ES:DI buffer filled
Notes:	the local session number allows sharing the redirector's session number
	if an error is caused on the NETBIOS LSN, the redirector may be unable
	  to correctly recover from errors
	the DOS kernel calls INT 2F/AX=111Eh with AX on top of the stack
	supported by DR-DOS 5.0
	also supported by 10NET v5.0
SeeAlso: AX=5F06h"Network",INT 2F/AX=111Eh
--------O-215F05-----------------------------
INT 21 - STARLITE architecture - MAP LOCAL DRIVE LETTER TO REMOTE FILE SYSTEM
	AX = 5F05h
	DL = drive number (0=A:)
	DS:SI -> ASCIZ name of the object to map the drive to
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
SeeAlso: AX=5F06h"STARLITE",INT 60/AX=0002h
--------N-215F06-----------------------------
INT 21 U - Network - GET FULL REDIRECTION LIST
	AX = 5F06h
	???
Return: ???
Notes:	similar to AX=5F02h and AX=5F05h, but also returns redirections
	  excluded from those calls for various reasons
	calls INT 2F/AX=111Eh with AX on top of the stack
SeeAlso: AX=5F05h"DOS",INT 2F/AX=111Eh
--------O-215F06-----------------------------
INT 21 - STARLITE architecture - UNMAP DRIVE LETTER
	AX = 5F06h
	DL = drive to be unmapped (0=A:)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
SeeAlso: AX=5F05h"STARLITE",INT 60/AX=0003h
--------D-215F07-----------------------------
INT 21 - DOS 5+ - ENABLE DRIVE
	AX = 5F07h
	DL = drive number (0=A:)
Return: CF clear if successful
	CF set on error
	    AX = error code (0Fh) (see #0885 at AH=59h)
Notes:	simply sets the "valid" bit in the drive's CDS
	this function is not supported by Novell DOS 7
SeeAlso: AH=52h,AX=5F08h"DOS"
--------O-215F07-----------------------------
INT 21 - STARLITE architecture - MAKE NAMED OBJECT AVAILABLE ON NETWORK
	AX = 5F07h
	DS:SI -> ASCIZ name of object to offer to network
	ES:DI -> ASCIZ name under which object will be known on the network
		MUST begin with three slashes
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
SeeAlso: AX=5F08h"STARLITE"
--------D-215F08-----------------------------
INT 21 - DOS 5+ - DISABLE DRIVE
	AX = 5F08h
	DL = drive number (0=A:)
Return: CF clear if successful
	CF set on error
	    AX = error code (0Fh) (see #0885 at AH=59h)
Notes:	simply clears the "valid" bit in the drive's CDS
	this function is not supported by Novell DOS 7
SeeAlso: AH=52h,AX=5F07h"DOS"
--------O-215F08-----------------------------
INT 21 - STARLITE architecture - REMOVE GLOBAL NETWORK NAME OF OBJECT
	AX = 5F08h
	DS:SI -> ASCIZ network name (not local name) of object to unshare
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
SeeAlso: AX=5F07h"STARLITE"
--------O-215F09-----------------------------
INT 21 - STARLITE architecture - BIND TO NETWORK DEVICE
	AX = 5F09h
	DS:DX -> ASCIZ name of the device driver to attach to
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
Note:	the STARLITE distributed file system can attach to multiple networks
	  simultaneously
SeeAlso: AX=5F0Ah
--------O-215F0A-----------------------------
INT 21 - STARLITE architecture - DETACH FROM NETWORK DEVICE
	AX = 5F0Ah
	DS:DX -> ASCIZ name of device driver to detach from
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
SeeAlso: AX=5F09h
--------N-215F30-----------------------------
INT 21 U - LAN Manager Enhanced DOS - GET REDIRECTOR VERSION
	AX = 5F30h
Return: AX = version (AH=major,AL=minor)
--------N-215F32-----------------------------
INT 21 u - Named Pipes - LOCAL DosQNmPipeInfo
	AX = 5F32h
	BX = handle
	CX = size of _PIPEINFO structure
	DX = level (must be 0001h)
	DS:SI -> _PIPEINFO structure (see #0906)
Return: CF clear if successful
	    _PIPEINFO structure filled in
	CF set on error
	    AX = error code
Note:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F33h,AX=5F34h

Format of Named Pipes _PIPEINFO structure:
Offset	Size	Description	(Table 0906)
 00h	WORD	size of outgoing buffer
 02h	WORD	size of incoming buffer
 04h	BYTE	maximum number of instances allowed
 05h	BYTE	current number of instances
 06h	BYTE	length of the name (including terminating NUL)
 07h  N BYTEs	name
--------N-215F33-----------------------------
INT 21 u - Named Pipes - LOCAL DosQNmPHandState
	AX = 5F33h
	BX = handle
Return: CF clear if successful
	    AH = pipe mode bit mask (see #0907)
	    AL = maximum number of instances
	CF set on error
	    AX = error code
Note:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F32h,AX=5F34h

Bitfields for Named Pipes pipe mode:
Bit(s)	Description	(Table 0907)
 7	set if nonblocking, clear if blocking
 6	set if server end, clear if client end
 2	set if write in message mode, clear if write in byte mode
 0	set if read in message mode, clear if read in byte mode
--------N-215F34-----------------------------
INT 21 u - Named Pipes - LOCAL DosSetNmPHandState
	AX = 5F34h
	BX = handle
	CX = pipe mode bit mask
	    bit 15: set if nonblocking, clear if blocking
	    bit	 8: set if read in message mode, clear if read in byte mode
Return: CF clear if successful
	CF set if error
	    AX = error code
Note:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F32h,AX=5F33h,AX=5F36h
--------N-215F35-----------------------------
INT 21 u - Named Pipes - LOCAL DosPeekNmPipe
	AX = 5F35h
	BX = handle
	CX = buffer length
	DS:SI -> buffer
Return:	CF set on error
	    AX = error code
	CF clear if successful (LAN Manager v1-v2)
	AX = 0000h if successful (LAN Manager 3.x)
	---if successful---
	    CX = bytes read
	    SI = bytes left in the pipe
	    DX = bytes left in the current message
	    AX = pipe status (v1-v2) (see #0908)
	    DI = pipe status (v3.x)
Note:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F38h,AX=5F39h,AX=5F51h

(Table 0908)
Values for pipe status:
 0001h	disconnected
 0002h	listening
 0003h	connected
 0004h	closing
--------N-215F36-----------------------------
INT 21 u - Named Pipes - LOCAL DosTransactNmPipe
	AX = 5F36h
	BX = handle
	CX = in buffer length
	DS:SI -> in buffer
	DX = out buffer length
	ES:DI -> out buffer
Return: CF clear if successful
	    CX = bytes read
	CF set on error
	    AX = error code
Note:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F34h,AX=5F37h
--------N-215F37-----------------------------
INT 21 u - Named Pipes - DosCallNmPipe
	AX = 5F37h
	DS:SI -> DosCallNmPipe stack frame (see #0909)
Return: CF clear if successful
	    CX = bytes read
	CF set on error
	    AX = error code
Note:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F36h,AX=5F38h

Format of Named Pipes DosCallNmPipe stack frame:
Offset	Size	Description	(Table 0909)
 00h	DWORD	timeout
 04h	DWORD	-> bytes read WORD (not used!!)
 08h	WORD	out buffer length
 0Ah	DWORD	address of out buffer
 0Eh	WORD	in buffer length
 10h	DWORD	address of in buffer
 14h	DWORD	address of pipe name
--------N-215F38-----------------------------
INT 21 u - Named Pipes - LOCAL DosWaitNmPipe - AWAIT AVAIL. OF PIPE INSTANCE
	AX = 5F38h
	DS:DX -> pipe name
	BX:CX = timeout value
Return: CF clear if successful
	CF set if error
	    AX = error code
Notes:	when a client gets a return code of ERROR_PIPE_BUSY on attempting to
	  open a pipe, it should issue this call to wait until the pipe
	  instance becomes available again; on return from this call, the
	  client must attempt to open the pipe once again
	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
SeeAlso: AX=5F37h,AX=5F39h
--------N-215F39-----------------------------
INT 21 U - Named Pipes - LOCAL DosRawReadNmPipe
	AX = 5F39h
	BX = handle
	CX = buffer length
	DS:DX -> buffer
Return: CF clear if successful
	    CX = bytes read
	CF set if error
	    AX = error code
Notes:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
	not documented in the LAN Manager Toolkit
SeeAlso: AX=5F35h,AX=5F3Ah,INT 2F/AX=1186h
--------N-215F3A-----------------------------
INT 21 U - Named Pipes - LOCAL DosRawWriteNmPipe
	AX = 5F3Ah
	BX = handle
	CX = buffer length
	DS:DX -> buffer
Return: CF clear if successful
	    CX = bytes written
	CF set if error
	    AX = error code
Notes:	this function was introduced by LAN Manager but is also supported by
	  the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
	  Machines, and others
	not documented in the LAN Manager Toolkit
SeeAlso: AX=5F39h,AX=5F3Bh,INT 2F/AX=118Fh
--------N-215F3B-----------------------------
INT 21 u - LAN Manager Enhanced DOS - NetHandleSetInfo
	AX = 5F3Bh
	BX = handle
	CX = handle_info_1 structure length or sizeof DWORD
	DI = parameter number to set
	    0000h all
	    0001h number of milliseconds
	    0002h number of characters
	DS:DX -> handle_info_1 structure (DI=0000h) (see #0910)
		or DWORD (DI=0001h or 0002h)
	SI = level of information (0001h)
Return: CF clear if successful
	    CX = total bytes available
	CF set if error
	    AX = error code
SeeAlso: AX=5F3Ch

Format of LAN Manager handle_info_1 structure:
Offset	Size	Description	(Table 0910)
 00h	DWORD	number of milliseconds which workstation collects data before
		  it sends the data to the named pipe
 04h	DWORD	number of characters which workstation collects before it
		  sends the data to the named pipe
--------N-215F3C-----------------------------
INT 21 u - LAN Manager Enhanced DOS - NetHandleGetInfo
	AX = 5F3Ch
	BX = handle
	CX = length of handle_info_1 structure
	DS:DX -> handle_info_1 structure (see #0910)
	SI = level of information (must be 0001h)
Return: CF clear if successful
	    CX = total bytes available
	CF set if error
	    AX = error code
SeeAlso: AX=5F3Bh
--------N-215F3D-----------------------------
INT 21 U - LAN Manager Enhanced DOS - WRITE MAILSLOT???
	AX = 5F3Dh
	???
Return: ???
--------N-215F3E-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetSpecialSMB
	AX = 5F3Eh
	???
Return: ???
Note:	This function is not documented anywhere in the LAN Manager 2.x Toolkit
	  but was documented in LAN Manager 1.x manuals.
--------N-215F3F-----------------------------
INT 21 U - LAN Manager Enhanced DOS - REMOTE API CALL
	AX = 5F3Fh
	CX = api number
	ES:DI -> data descriptor
	ES:SI -> parameter descriptor
	ES:DX -> auxiliary descriptor (if DX <> 0)
	???
Return: ???
--------N-215F40-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetMessageBufferSend
	AX = 5F40h
	DS:DX -> NetMessageBufferSend parameter structure (see #0911)
Return: AX = error code

Format of LAN Manager NetMessageBufferSend parameter structure:
Offset	Size	Description	(Table 0911)
 00h	DWORD	-> recipient name (name for specific user, name* for domain
		      wide name, * for broadcast)
 04h	DWORD	-> buffer
 08h	WORD	length of buffer
--------N-215F41-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetServiceEnum
	AX = 5F41h
	BL = level of detail (0000h, 0001h or 0002h)
	CX = buffer length
	ES:DI -> buffer of service_info_0, service_info_1, or service_info_2
		(see #0912,#0913,#0914)
Return: CF clear if successful
	    CX = entries read
	    DX = total available
	CF set on error
	    AX = error code

Format of LAN Manager service_info_0 structure:
Offset	Size	Description	(Table 0912)
 00h 16 BYTEs	name
SeeAlso: #0913,#0914

Format of service_info_1 structure:
Offset	Size	Description	(Table 0913)
 00h 16 BYTEs	name
 10h	WORD	status bitmask (see #0915)
 12h	DWORD	status code (see #0916)
		(also see Microsoft LAN Manager Programmer's Reference)
 16h	WORD	process id
SeeAlso: #0912,#0914

Format of service_info_2 structure:
Offset	Size	Description	(Table 0914)
 00h 16 BYTEs	name
 10h	WORD	status bitmask (see #0915)
 12h	DWORD	status code (see #0916)
 16h	WORD	process id
 18h 64 BYTEs	text
SeeAlso: #0912,#0913

Bitfields for LAN Manager status bitmask:
Bit(s)	Description	(Table 0915)
 0,1	00 uninstall
		01 install pending
		10 uninstall pending
		11 installed
 2,3	00 active
		01 Continue pending
		10 Pause pending
		11 paused
 4	uninstallable
 5	pausable
 8	disk redirector paused
 9	spooled device redirector paused (printing)
 10	communication device redirector paused

(Table 0916)
Values for LAN Manager status code:
 high word
    3051 Bad parameter value
    3052 A parameter is missing
    3053 An unknown parameter was specified
	 3054 The resource is insufficient
    3055 Configuration is faulty
    3056 An MS-DOS or MS OS/2 error occured
    3057 An internal error occured
    3058 An ambiguous parameter name was given
    3059 A duplicate parameter exists
    3060 The service was terminated by NetSeviceControl when it did not respond
    3061 The service program file could not be executed
    3062 The subservice failed to start
    3063 There is a conflict in the value or use of these parameters
    3064 There is a problem with the file
 low word
    3070 There is insufficient memory
    3071 There is insufficeient disk space
    3072 Unable to create thread
    3073 Unable to create process
    3074 A security failure occured
    3075 There is bad or missing default path
    3076 Network software is not installed
    3077 Server software is not installed
    3078 The server could not access the UAS database
    3079 The action requires user-level security
    3080 The log directory is invalid
	 3081 The LAN group specificed could not be used
    3082 The computername is being used as a message alias on another computer
    3083 The workstation failed to announce the servername
    3084 The user accounts system is not configured properly
--------N-215F42-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetServiceControl
	AX = 5F42h
	DH = opcode
	    00h interrogate status
	    01h pause
	    02h continue
	    03h uninstall
	DL = argument
	    01h disk resource
	    02h print resource
	    04h communications resource (not implemented for DOS)
	ES:BX -> NetServiceControl parameter structure (see #0917)
Return: CF clear if successful
	CF set on error
	    AX = error code

Format of LAN Manager NetServiceControl parameter structure:
Offset	Size	Description	(Table 0917)
 00h	DWORD	-> service name
 04h	WORD	result buffer size
 06h	DWORD	-> result buffer as service_info_2 structure
--------N-215F43-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL DosPrintJobGetId
	AX = 5F43h
	BX = handle of remote print job
	CX = size of PRIDINFO struture
	ES:DI -> PRIDINFO structure (see #0918)
Return: CF clear if successful
	    PRIDINFO filled in
	CF set on error
	    AX = error code

Format of LAN Manager PRIDINFO structure:
Offset	Size	Description	(Table 0918)
 00h	WORD	job id
 02h 16 BYTEs	server name
 12h 13 BYTEs	queue name
 1Fh  1 BYTE	pad
--------N-215F44-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetWkstaGetInfo
	AX = 5F44h
	BX = information level (00h, 01h, or 0Ah)
	CX = buffer size
	ES:DI -> buffer in which to store info
Return: AX = error code
	DX = amount of buffer used (or required)
SeeAlso: AX=5F45h,AX=5F49h
--------N-215F45-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetWkstaSetInfo
	AX = 5F45h
	BX = level (0000h or 0001h)
	CX = buffer size
	DX = parameter to set
	ES:DI -> buffer
Return: CF clear if successful
	CF set if error
	    AX = error code
SeeAlso: AX=5F44h
--------N-215F46-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetUseEnum
	AX = 5F46h
	BX = level (0000h or 0001h)
	CX = size of buffer
	ES:DI -> buffer of use_info_0 or use_info_1 structures
		  (see #0919,#0920)
Return: CF clear if successful
	    CX = entries read
	    DX = total available entries
	CF set if error
	    AX = error code
SeeAlso: AX=5F47h,AX=5F48h,AX=5F4Ch

Format of LAN Manager use_info_0 structure:
Offset	Size	Description	(Table 0919)
 00h  9 BYTEs	local device name
 09h	BYTE	padding
 0Ah	DWORD	-> remote device name in UNC form \\server\share
SeeAlso: #0920

Format of LAN Manager use_info_1 structure:
Offset	Size	Description	(Table 0920)
 00h  9 BYTEs	Local device name
 09h	BYTE	padding
 0Ah	DWORD	-> remote device name in UNC form \\server\share
 0Eh	DWORD	-> password
 12h	WORD	network link status
		(00h OK, 02h disconnected, else unsure)
 14h	WORD	use type (-1 wildcard, 0 disk, 1 print, 2 com, 3 ipc)
 16h	WORD	ignored
 18h	WORD	ignored
SeeAlso: #0919
--------N-215F47-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetUseAdd
	AX = 5F47h
	BX = level (0001h)
	CX = size of use_info_1 structure
	ES:DI -> use_info_1 structure (see #0920)
Return: CF clear on success
	CF set on error
	    AX = error code
SeeAlso: AX=5F46h,AX=5F48h
--------N-215F48-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetUseDel
	AX = 5F48h
	BX = force level
	    0000h no force
	    0001h force
	    0002h lots of force
	ES:DI -> buffer as either the local device name or UNC remote name
Return: CF clear on success
	CF set on error
	    AX = error code
SeeAlso: AX=5F46h,AX=5F48h,AX=5F49h
--------N-215F49-----------------------------
INT 21 u - LAN Manager Enhanced DOS - NetUseGetInfo
	AX = 5F49h
	DS:DX -> NetUseGetInfo parameter structure (see #0921)
Return: CF clear on success
	    DX = total available
	CF set on error
	    AX = error code
SeeAlso: AX=5F44h,AX=5F47h

Format of LAN Manager NetUseGetInfo parameter structure:
Offset	Size	Description	(Table 0921)
 00h	DWORD	pointer to either the local device name or UNC remote name
 04h	WORD	level of information (0000h or 0001h)
 06h	DWORD	pointer to buffer of use_info_0 or use_info_1 structures
 0Ah	WORD	length of buffer
--------N-215F4A-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetRemoteCopy
	AX = 5F4Ah
	DS:DX -> NetRemoteCopy parameter structure (see #0922)
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Bh

Format of LAN Manager NetRemoteCopy parameter structure:
Offset	Size	Description	(Table 0922)
 00h	DWORD	-> source name as UNC
 04h	DWORD	-> destination name as UNC
 08h	DWORD	-> source password
 0Ch	DWORD	-> destination password
 10h	WORD	destination open bitmap
		if destination path exists
		    0000h open fails
		    0001h file is appended
		    0002h file is overwritten
		if destination path doesn't exist
		    0000h open fails
		    0010h file is created
 12h	WORD	copy control bitmap (see #0923)
 14h	DWORD	-> copy_info buffer
 18h	WORD	length of copy_info buffer

Bitfields for LAN Manager copy control:
Bit(s)	Description	(Table 0923)
 0	destination must be a file
 1	destination must be a directory
 2	destination is opened in ascii mode instead of binary
 3	source is opened in ascii mode instead of binary
 4	verify all write operations
--------N-215F4B-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetRemoteMove
	AX = 5F4Bh
	DS:DX -> NetRemoteMove parameter structure (see #0924)
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Ah

Format of LAN Manager NetRemoteMove parameter structure:
Offset	Size	Description	(Table 0924)
 00h	DWORD	-> source name as UNC
 04h	DWORD	-> destination name as UNC
 08h	DWORD	-> source password
 0Ch	DWORD	-> destination password
 10h	WORD	destination open bitmap
		if destination path exists
		    0000h open fails
		    0001h file is appended
		    0002h file is overwritten
		if destination path doesn't exist
		    0000h open fails
		    0010h file is created
 12h	WORD	move control bitmap
		    0001h destination must be a file
		    0002h destination must be a directory
 14h	DWORD	-> move_info buffer
 18h	WORD	length of move_info buffer
--------N-215F4C-----------------------------
INT 21 u - LAN Manager Enhanced DOS - LOCAL NetServerEnum
	AX = 5F4Ch
	BX = level (0000h or 0001h)
	CX = buffer length
	ES:DI -> buffer in which to store information
Return: CF clear if successful
	    ES:DI -> server_info_X structures (depending on level)
		  (see #0925,#0926)
	    BX = entries read
	    CX = total entries available
	CF set on error
	    AX = error code
Notes:	this function is also supported by the Novell DOS Named Pipe Extender
	this function has been obseleted by NetServerEnum2
SeeAlso: AX=5F53h

Format of LAN Manager server_info_0 structure:
Offset	Size	Description	(Table 0925)
 00h 16 BYTEs	name
SeeAlso: #0926

Format of LAN Manager server_info_1 structure:
Offset	Size	Description	(Table 0926)
 00h 16 BYTEs	name
 10h	BYTE	major version in lower nibble
 11h	BYTE	minor version
 12h	DWORD	server type bitmask (see #0927)
 16h	DWORD	-> comment string
SeeAlso: #0925

Bitfields for LAN Manager server type:
Bit(s)	Description	(Table 0927)
 0	workstation
 1	server
 2	SQL server
 3	primary domain controller
 4	backup domain controller
 5	time server
 6	Apple File Protocol (AFP) server
 7	Novell server
 8	Domain Member (v2.1+)
 9	Print Queue server (v2.1+)
 10	Dialin server (v2.1+)
 11	Unix server (v2.1+)
--------N-215F4D-----------------------------
INT 21 u - LAN Manager Enhanced DOS - DosMakeMailslot
	AX = 5F4Dh
	BX = message size
	CX = mailslot size (must be bigger than message size by at least 1)
			   (minimum 1000h, maximum FFF6h)
			   (buffer must be 9 bytes bigger than this)
	DS:SI -> name
	ES:DI -> memory buffer
Return: CF clear if successful
	    AX = handle
	CF set on error
		 AX = error code
SeeAlso: AX=5F4Eh,AX=5F4Fh,AX=5F50h,AX=5F51h
--------N-215F4E-----------------------------
INT 21 u - LAN Manager Enhanced DOS - DosDeleteMailslot
	AX = 5F4Eh
	BX = handle
Return: CF clear if successful
	    ES:DI -> memory to be freed (allocated during DosMakeMailslot)
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Dh,AX=5F4Fh
--------N-215F4F-----------------------------
INT 21 u - LAN Manager Enhanced DOS - DosMailslotInfo
	AX = 5F4Fh
	BX = handle
Return: CF clear if successful
	    AX = max message size
	    BX = mailslot size
	    CX = next message size
	    DX = next message priority
	    SI = number of messages waiting
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Dh,AX=5F4Eh,AX=5F50h
--------N-215F50-----------------------------
INT 21 u - LAN Manager Enhanced DOS - DosReadMailslot
	AX = 5F50h
	BX = handle
	DX:CX = timeout
	ES:DI -> buffer
Return: CF clear if successful
	    AX = bytes read
	    CX = next item's size
	    DX = next item's priority
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Dh,AX=5F4Fh,AX=5F51h,AX=5F52h
--------N-215F51-----------------------------
INT 21 u - LAN Manager Enhanced DOS - DosPeekMailslot
	AX = 5F51h
	BX = handle
	ES:DI -> buffer
Return: CF clear if successful
	    AX = bytes read
	    CX = next item's size
	    DX = next item's priority
	CF set on error
	    AX = error code
SeeAlso: AX=5F35h,AX=5F4Fh,AX=5F50h,AX=5F52h
--------N-215F52-----------------------------
INT 21 u - LAN Manager Enhanced DOS - DosWriteMailslot
	AX = 5F52h
	BX = class
	CX = length of buffer
	DX = priority
	ES:DI -> DosWriteMailslot parameter structure (see #0928)
	DS:SI -> mailslot name
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Fh,AX=5F50h,AX=5F51h

Format of LAN Manager DosWriteMailslot parameter structure:
Offset	Size	Description	(Table 0928)
 00h	DWORD	timeout
 04h	DWORD	-> buffer
--------N-215F53-----------------------------
INT 21 u - LAN Manager Enhanced DOS - NetServerEnum2
	AX = 5F53h
	DS:SI -> NetServerEnum2 parameter structure (see #0929)
Return: CF clear if successful
	    BX = entries read
	    CX = total entries available
	CF set on error
	    AX = error code
SeeAlso: AX=5F4Ch

Format of LAN Manager NetServerEnum2 parameter structure:
Offset	Size	Description	(Table 0929)
 00h	WORD	level (0000h or 0001h)
 02h	DWORD	-> buffer as array of server_info_??? structures (see #0931)
 06h	WORD	length of buffer
 08h	DWORD	server type bitmask (see #0930)
 0Ch	DWORD	-> Domain name (may be 0000h:0000h for all local domains)

Bitfields for LAN Manager server type:
Bit(s)	Description	(Table 0930)
 0	workstation
 1	server
 2	SQL server
 3	primary domain controller
 4	backup domain controller
 5	time server
 6	Apple File Protocol (AFP) server
 7	Novell server
 8	Domain Member (v2.1+)
 9	Print Queue server (v2.1+)
 10	Dialin server (v2.1+)
 11	Unix server (v2.1+)
Note:	set all (FFFFFFFFh) for All Types

Format of LAN Manager server_info_0 structure:
Offset	Size	Description	(Table 0931)
 00h 16 BYTEs	name
SeeAlso: #0932

Format of LAN Manager server_info_1 structure:
Offset	Size	Description	(Table 0932)
 00h 16 BYTEs	name
 10h	BYTE	major version in lower nibble
 11h	BYTE	minor version
 12h	DWORD	server type (bits 0-11) (see #0930)
 16h	DWORD	-> comment string
SeeAlso: #0931
--------N-215F55----------------------------
INT 21 U - LAN Manager Enhanced DOS - KILL ALL CONNECTIONS???
	AX = 5F55h
	BX = ???
Return: CF clear if successful
	CF set on error
	    AX = error code
--------N-215F80-----------------------------
INT 21 - LANtastic - GET LOGIN ENTRY
	AX = 5F80h
	BX = login entry index (0-based)
	ES:DI -> 16-byte buffer for machine name
Return: CF clear if successful
	    buffer filled with machine name ("\\" prefix removed)
	    DL = adapter number (v3+)
	CF set on error
	    AX = error code
Note:	the login entry index corresponds to the value BX used in AX=5F83h
SeeAlso: AX=5F83h
--------N-215F81-----------------------------
INT 21 - LANtastic - LOGIN TO SERVER
	AX = 5F81h
	ES:DI -> ASCIZ login path followed immediately by ASCIZ password
	BL = adapter number
		 FFh try all valid adapters
	    00h-07h try only specified adapter
Return: CF clear if successful
	CF set on error
	    AX = error code
Notes:	login path is of form "\\machine\username"
	if no password is used, the string at ES:DI must be terminated with
	  three NULs for compatibility with LANtastic v3.0.
SeeAlso: AX=5F82h,AX=5F84h
--------N-215F82-----------------------------
INT 21 - LANtastic - LOGOUT FROM SERVER
	AX = 5F82h
	ES:DI -> ASCIZ server name (in form "\\machine")
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F81h,AX=5F88h,AX=5FCBh
--------N-215F83-----------------------------
INT 21 - LANtastic - GET USERNAME ENTRY
	AX = 5F83h
	BX = login entry index (0-based)
	ES:DI -> 16-byte buffer for username currently logged into
Return: CF clear if successful
		 DL = adapter number (v3+)
	CF set on error
	    AX = error code
Note:	the login entry index corresponds to the value BX used in AX=5F80h
SeeAlso: AX=5F80h
--------N-215F84-----------------------------
INT 21 - LANtastic - GET INACTIVE SERVER ENTRY
	AX = 5F84h
	BX = server index not currently logged into
	ES:DI -> 16-byte buffer for server name which is available for logging
		in to ("\\" prefix omitted)
Return: CF clear if successful
	    DL = adapter number to non-logged in server is on
	CF set on error
	    AX = error code
SeeAlso: AX=5F81h
--------N-215F85-----------------------------
INT 21 - LANtastic - CHANGE PASSWORD
	AX = 5F85h
	ES:DI -> buffer containing "\\machine\oldpassword" 00h "newpassword"00h
Return: CF clear if successful
	CF set on error
	    AX = error code
Notes:	must be logged into the named machine
	this function is illegal for group accounts
--------N-215F86-----------------------------
INT 21 - LANtastic - DISABLE ACCOUNT
	AX = 5F86h
	ES:DI -> ASCIZ machine name and password in form "\\machine\password"
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	must be logged into the named machine and concurrent logins set to 1
	  by NET_MGR.  Requires system manager to re-enable account.
--------N-215F87-----------------------------
INT 21 - LANtastic v3+ - GET ACCOUNT
	AX = 5F87h
	DS:SI -> 128-byte buffer for account information (see #0933)
	ES:DI -> ASCIZ machine name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
	BX destroyed
Note:	must be logged into the specified machine

Format of LANtastic user account structure:
Offset	Size	Description	(Table 0933)
 00h 16 BYTEs	blank-padded username (zero-padded for v4.x)
 10h 16 BYTEs	reserved (00h)
 20h 32 BYTEs	user description
 40h	BYTE	privilege bits (see #0934)
 41h	BYTE	maximum concurrent users
 42h 42 BYTEs	bit map for disallowed half hours, beginning on Sunday
		(bit set if half-hour not an allowed time)
 6Ch	WORD	internal (0002h)
 6Eh  2 WORDs	last login time
 72h  2 WORDs	account expiration date (MS-DOS-format year/month:day)
 76h  2 WORDs	password expiration date (0 = none)
 7Ah	BYTE	number of days to extend password after change (1-31)
		00h if no extension required
---v3.x---
 7Bh  5 BYTEs	reserved
---v4.x---
 7Bh	BYTE	storage for first letter of user name when deleted (first
		  character is changed to 00h when deleting account)
 7Ch	BYTE	extended privileges
 7Dh  3 BYTEs	reserved

Bitfields for LANtastic privilege bits:
Bit(s)	Description	(Table 0934)
 7	bypass access control lists
 6	bypass queue protection
 5	treat as local process
 4	bypass mail protection
 3	allow audit entry creation
 2	system manager
 0	user cannot change password
--------N-215F88-----------------------------
INT 21 - LANtastic v4.0+ - LOGOUT FROM ALL SERVERS
	AX = 5F88h
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F82h
--------N-215F97-----------------------------
INT 21 - LANtastic - COPY FILE
	AX = 5F97h
	CX:DX = number of bytes to copy (FFFFFFFFh = entire file)
	SI = source file handle
	DI = destination file handle
Return: CF clear if successful
	    DX:AX = number of bytes copied
	CF set on error
	    AX = error code
Note:	copy is performed by server
--------N-215F98-----------------------------
INT 21 - LANtastic - SEND UNSOLICITED MESSAGE
	AX = 5F98h
	DS:SI -> message buffer (see #0935)
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	v4.1- return no errors
SeeAlso: AX=5F99h

Format of LANtastic message buffer:
Offset	Size	Description	(Table 0935)
 00h	BYTE	reserved
 01h	BYTE	message type
		00h general
		01h server warning
		02h-7Fh reserved
		80h-FFh user-defined
 02h 16 BYTEs	ASCIZ destination machine name
 12h 16 BYTEs	ASCIZ server name which user must be logged into
 22h 16 BYTEs	ASCIZ user name
 32h 16 BYTEs	ASCIZ originating machine name (filled in when received)
 42h 80 BYTEs	message text
--------N-215F99-----------------------------
INT 21 - LANtastic - GET LAST RECEIVED UNSOLICITED MESSAGE
	AX = 5F99h
	ES:DI -> messsage buffer (see #0935)
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F98h
--------N-215F9A-----------------------------
INT 21 - LANtastic - GET MESSAGE PROCESSING FLAGS
	AX = 5F9Ah
Return: CF clear if successful
	    DL = bits describing processing of received messages (see #0936)
	CF set on error
	    AX = error code
SeeAlso: AX=5F9Bh,AX=5F9Ch,AX=5F9Dh

Bitfields for unsolicited message processing flags:
Bit(s)	Description	(Table 0936)
 0	beep before message is delivered
 1	deliver message to message service
 2	pop up message automatically (v3+)
--------N-215F9B-----------------------------
INT 21 - LANtastic - SET MESSAGE PROCESSING FLAGS
	AX = 5F9Bh
	DL = bits describing processing for received unsolicited messages
	     (see #0936)
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5F9Ah,AX=5F9Eh
--------N-215F9C-----------------------------
INT 21 - LANtastic v3+ - POP UP LAST RECEIVED MESSAGE
	AX = 5F9Ch
	CX = time to leave on screen in clock ticks
	DH = 0-based screen line on which to place message
Return: CF clear if successful
	CF set on error
	    AX = error code (0Bh)
Notes:	the original screen contents are restored when the message is removed
	the message will not appear, and an error will be returned, if the
	  screen is in a graphics mode
SeeAlso: AX=5F9Ah
--------N-215F9D-----------------------------
INT 21 - LANtastic v4.1+ - GET REDIRECTOR CONTROL BITS
	AX = 5F9Dh
Return: DL = redirector control bits
		bit 7: set to notify on print job completion
SeeAlso: AX=5F9Ah,AX=5F9Eh
--------N-215F9E-----------------------------
INT 21 - LANtastic v4.1+ - SET REDIRECTOR CONTROL BITS
	AX = 5F9Eh
	DL = redirector control bits (see AX=5F9Dh)
Return: nothing
SeeAlso: AX=5F9Bh,AX=5F9Dh
--------N-215FA0-----------------------------
INT 21 - LANtastic - GET QUEUE ENTRY
	AX = 5FA0h
	BX = queue entry index (0000h is first entry)
	DS:SI -> buffer for queue entry (see #0937)
	ES:DI -> ASCIZ server name in form "\\name"
Return: CF clear if successful
	CF set on error
	    AX = error code
	BX = entry index for next queue entry (BX-1 is current index)
SeeAlso: AX=5FA1h,AX=5FA2h

Format of LANtastic queue entry:
Offset	Size	Description	(Table 0937)
 00h	BYTE	status of entry (see #0938)
 01h	DWORD	size of spooled file
 05h	BYTE	type of entry (see #0939)
 06h	BYTE	output control (see #0940)
 07h	WORD	number of copies
 09h	DWORD	sequence number of queue entry
 0Dh 48 BYTEs	pathname of spooled file
 3Dh 16 BYTEs	user who spooled file
 4Dh 16 BYTEs	name of machine from which file was spooled
 5Dh	WORD	date file was spooled (see #0877 at AX=5700h)
 5Fh	WORD	time file was spooled (see #0876 at AX=5700h)
 61h 17 BYTEs	ASCIZ destination device or user name
 72h 48 BYTEs	comment field

(Table 0938)
Values for status of LANtastic queue entry:
 00h	empty
 01h	being updated
 02h	being held
 03h	waiting for despool
 04h	being despooled
 05h	canceled
 06h	spooled file could not be accessed
 07h	destination could not be accessed
 08h	rush job

(Table 0939)
Values for type of LANtastic queue entry:
 00h	printer queue file
 01h	message
 02h	local file
 03h	remote file
 04h	to remote modem
 05h	batch processor file

Bitfields for output control:
Bit(s)	Description	(Table 0940)
 6	don't delete (for mail)
 5	mail file contains voice mail (v3+)
 4	mail message has been read
 3	response has been requested for this mail
--------N-215FA1-----------------------------
INT 21 - LANtastic - SET QUEUE ENTRY
	AX = 5FA1h
	BX = handle of opened queue entry
	DS:SI -> queue entry (see #0937)
Return: CF clear if successful
	CF set on error
	    AX = error code
Notes:	the only queue entry fields which may be changed are output control,
	  number of copies, destination device, and comment
	the handle in BX is that from a create or open (INT 21/AH=3Ch,3Dh)
	  call on the file "\\server\\@MAIL" or "\\server\@name" (for
	  printer queue entries)
SeeAlso: AX=5FA0h,AX=5FA2h,AX=5FA9h
--------N-215FA2-----------------------------
INT 21 - LANtastic - CONTROL QUEUE
	AX = 5FA2h
	BL = control command
	    00h start despooling (privileged)
	    01h halt despooling (privileged)
	    02h halt despooling at end of job (privileged)
	    03h pause despooler at end of job (privileged)
	    04h print single job (privileged)
	    05h restart current job (privileged)
	    06h cancel the current job
		 07h hold queue entry
	    08h release a held queue entry
	    09h make queue entry a rushed job (privileged)
	CX:DX = sequence number to control (commands 06h-09h)
	DX = physical printer number (commands 00h-05h)
	    00h-02h LPT1-LPT3
	    03h,04h COM1,COM2
	    other	all printers
	ES:DI -> ASCIZ server name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
--------N-215FA3-----------------------------
INT 21 - LANtastic v3+ - GET PRINTER STATUS
	AX = 5FA3h
	BX = physical printer number (00h-02h = LPT1-LPT3, 03h-04h = COM1-COM2)
	DS:SI -> buffer for printer status (see #0941)
	ES:DI -> ASCIZ server name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
	BX = next physical printer number
Note:	you must be logged in to the specified server

Format of LANtastic printer status:
Offset	Size	Description	(Table 0941)
 00h	BYTE	printer state (see #0942)
 01h	WORD	queue index of print job being despooled
		FFFFh if not despooling--ignore all following fields
 03h	WORD	actual characters per second being output
 05h	DWORD	number of characters actually output so far
 09h	DWORD	number of bytes read from spooled file so far
 0Dh	WORD	copies remaining to print

Bitfields for LANtastic printer state:
Bit(s)	Description	(Table 0942)
 7	printer paused
 0-6	0 printer disabled
	1 will stop at end of job
	2 print multiple jobs
--------N-215FA4-----------------------------
INT 21 - LANtastic v3+ - GET STREAM INFO
	AX = 5FA4h
	BX = 0-based stream index number
	DS:SI -> buffer for stream information (see #0943)
	ES:DI -> ASCIZ machine name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
	BX = next stream number
SeeAlso: AX=5FA5h

Format of LANtastic stream information:
Offset	Size	Description	(Table 0943)
 00h	BYTE	queueing of jobs for logical printer (0=disabled,other=enabled)
 01h 11 BYTEs	logical printer resource template (may contain ? wildcards)
--------N-215FA5-----------------------------
INT 21 - LANtastic v3+ - SET STREAM INFO
	AX = 5FA5h
	BX = 0-based stream index number
	DS:SI -> buffer containing stream information (see #0943)
	ES:DI -> ASCIZ machine name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5FA4h
--------N-215FA7-----------------------------
INT 21 - LANtastic - CREATE USER AUDIT ENTRY
	AX = 5FA7h
	DS:DX -> ASCIZ reason code (max 8 bytes)
	DS:SI -> ASCIZ variable reason string (max 128 bytes)
	ES:DI -> ASCIZ machine name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	you must be logged in to the specified server and have the "U"
	  privilege to execute this call
--------N-215FA9-----------------------------
INT 21 - LANtastic v4.1+ - SET EXTENDED QUEUE ENTRY
	AX = 5FA9h
	BX = handle of opened queue entry
	DS:SI -> queue entry (see #0937)
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	functions exactly the same as AX=5FA1h except the spooled filename is
	  also set.  This call supports direct despooling.
SeeAlso: AX=5FA1h
--------N-215FB0-----------------------------
INT 21 - LANtastic - GET ACTIVE USER INFORMATION
	AX = 5FB0h
	BX = server login entry index
	DS:SI -> buffer for active user entry (see #0944)
	ES:DI -> ASCIZ machine name in form "\\server"
Return: CF clear if successful
	CF set on error
	    AX = error code
	BX = next login index
SeeAlso: AX=5FB2h

Format of LANtastic active user entry:
Offset	Size	Description	(Table 0944)
 00h	WORD	virtual circuit number
 02h	BYTE	login state (see #0945)
 03h	BYTE	last command issued (see #0946)
 04h  5 BYTEs	number of I/O bytes (40-bit unsigned number)
 09h  3 BYTEs	number of server requests (24-bit unsigned)
 0Ch 16 BYTEs	name of user who is logged in
 1Ch 16 BYTEs	name of remote logged in machine
 2Ch	BYTE	extended privileges (v4+???)
		bit 0: user cannot change his password
 2Dh	WORD	time left in minutes (0000h = unlimited) (v4+???)

Bitfields for login state:
Bit(s)	Description	(Table 0945)
 0	fully logged in
 1	remote program load login
 2	user has system manager privileges
 3	user can create audit entries
 4	bypass mail protection
 5	treat as local process
 6	bypass queue protection
 7	bypass access control lists

(Table 0946)
Values for last LANtastic command:
 00h	login
 01h	process termination
 02h	open file
 03h	close file
 04h	create file
 05h	create new file
 06h	create unique file
 07h	commit data to disk
 08h	read file
 09h	write file
 0Ah	delete file
 0Bh	set file attributes
 0Ch	lock byte range
 0Dh	unlock byte range
 0Eh	create subdirectory
 0Fh	remove subdirectory
 10h	rename file
 11h	find first matching file
 12h	find next matching file
 13h	get disk free space
 14h	get a queue entry
 15h	set a queue entry
 16h	control the queue
 17h	return login information
 18h	return link description
 19h	seek on file
 1Ah	get server's time
 1Bh	create audit entry
 1Ch	open file in multitude of modes
 1Dh	change password
 1Eh	disable account
 1Fh	local server file copy
---v3+---
 20h	get username from account file
 21h	translate server's logical path
 22h	make indirect file
 23h	get indirect file contents
 24h	get physical printer status
 25h	get logical print stream info
 26h	set logical print stream info
 27h	get user's account record
---v4+---
 28h	request server shutdown
 29h	cancel server shutdown
 2Ah	stuff server's keyboard
 2Bh	write then commit data to disk
 2Ch	set extended queue entry
 2Dh	terminate user from server
 2Eh	enable/disable logins
 2Fh	flush server caches
 30h	change username
 31h	get extended queue entry
	(same as get queue, but can return named fields blanked)
--------N-215FB1-----------------------------
INT 21 - LANtastic - GET SHARED DIRECTORY INFORMATION
	AX = 5FB1h
	DS:SI -> 64-byte buffer for link description
	ES:DI -> ASCIZ machine and shared directory name in form
		 "\\machine\shared-resource"
Return: CF clear if successful
	    CX = access control list privileges for requesting user (see #0947)
	CF set on error
	    AX = error code

Bitfields for LANtastic access control list:
Bit(s)	Description	(Table 0947)
 4	(I) allow expansion of indirect files
 5	(A) allow attribute changing
 6	(P) allow physical access to device
 7	(E) allow program execution
 8	(N) allow file renaming
 9	(K) allow directory deletion
 10	(D) allow file deletion
 11	(L) allow file/directory lookups
 12	(M) allow directory creation
 13	(C) allow file creation
 14	(W) allow open for write and writing
 15	(R) allow open for read and reading
--------N-215FB2-----------------------------
INT 21 - LANtastic v3+ - GET USERNAME FROM ACCOUNT FILE
	AX = 5FB2h
	BX = username entry index (0 for first)
	DS:SI -> 16-byte buffer for username
	ES:DI -> ASCIZ server name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
	BX = next queue entry index
SeeAlso: AX=5FB0h
--------N-215FB3-----------------------------
INT 21 - LANtastic v3+ - TRANSLATE PATH
	AX = 5FB3h
	DS:SI -> 128-byte buffer for ASCIZ result
	ES:DI -> full ASCIZ path, including server name
	DX = types of translation to be performed
	    bit 0: expand last component as indirect file
	    bit 1: return actual path relative to server's physical disk
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	always expands any indirect files along the path
SeeALso: AX=5FB4h,INT 21/AH=60h
--------N-215FB4-----------------------------
INT 21 - LANtastic v3+ - CREATE INDIRECT FILE
	AX = 5FB4h
	DS:SI -> 128-byte buffer containing ASCIZ contents of indirect file
	ES:DI -> full ASCIZ path of indirect file to create, incl machine name
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	the contents of the indirect file may be any valid server-relative path
SeeAlso: AX=5FB3h,AX=5FB5h
--------N-215FB5-----------------------------
INT 21 - LANtastic v3+ - GET INDIRECT FILE CONTENTS
	AX = 5FB5h
	DS:SI -> 128-byte buffer for ASCIZ indirect file contents
	ES:DI -> full ASCIZ path of indirect file
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5FB4h
--------N-215FB6-----------------------------
INT 21 - LANtastic v4.1+ - SET AUTO-LOGIN DEFAULTS
	AX = 5FB6h
	ES:DI -> pointer to ASCIZ default user name, immediately followed by
		ASCIZ password
	BL = adapter number to use for default login attempt
		 FFh try all valid adapters
	    00h-05h try adapter 0-5 explicitly
Return: CF clear if successful
	CF set on error
	    AX = error code
Notes:	call with ES:DI -> two nulls to disable auto-login
SeeAlso: AX=5FB7h
--------N-215FB7-----------------------------
INT 21 - LANtastic v4.1+ - GET AUTO-LOGIN DEFAULTS
	AX = 5FB7h
	ES:DI -> pointer to 16-byte buffer to store ASCIZ auto-login user name
Return: CF clear if successful
	    DL = adapter number used for default login attempt
		FFh all valid adapters will be tried
		00h-05h specified adapter will be tried explicitly
	CF set on error
	    AX = error code
SeeAlso: AX=5F81h,AX=5FB6h
--------N-215FC0-----------------------------
INT 21 - LANtastic - GET TIME FROM SERVER
	AX = 5FC0h
	DS:SI -> time block (see #0948)
	ES:DI -> ASCIZ server name to get time from
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AH=E7h

Format of LANtastic time block:
Offset	Size	Description	(Table 0948)
 00h	WORD	year
 02h	BYTE	day
 03h	BYTE	month
 04h	BYTE	minutes
 05h	BYTE	hour
 06h	BYTE	hundredths of second
 07h	BYTE	second
--------N-215FC8-----------------------------
INT 21 - LANtastic v4.0+ - SCHEDULE SERVER SHUTDOWN
	AX = 5FC8h
	ES:DI -> ASCIZ server name in form "\\machine"
	DS:SI -> ASCIZ reason string (80 characters)
	CX = number of minutes until shutdown (0 = immediate)
	DX = option flags (see #0949)
Return: CF clear if successful
	CF set on error
		 AX = error code
SeeAlso: AX=5FC9h

Bitfields for LANtastic option flags:
Bit(s)	Description	(Table 0949)
 0	auto reboot
 1	do not notify users
 2	halt after shutdown
 3	shutdown due to power fail (used by UPS)
 4-7	reserved
 8-14	user definable
 15	reserved
--------N-215FC9-----------------------------
INT 21 - LANtastic v4.0+ - CANCEL SERVER SHUTDOWN
	AX = 5FC9h
	ES:DI -> ASCIZ server name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	you must have the "S" privilege to use this call
SeeAlso: AX=5FC8h
--------N-215FCA-----------------------------
INT 21 - LANtastic v4.0+ - STUFF SERVER KEYBOARD BUFFER
	AX = 5FCAh
	ES:DI -> ASCIZ server name in form "\\machine"
	DS:SI -> ASCIZ string to stuff (128 bytes)
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	you must have the "S" privilege to use this call
	maximum number of characters that can be stuffed is determined by the
	  server's RUN BUFFER SIZE.
SeeAlso: INT 16/AH=05h
--------N-215FCB-----------------------------
INT 21 - LANtastic v4.1+ - TERMINATE USER
	AX = 5FCBh
	ES:DI -> ASCIZ server name in form "\\machine"
	DS:SI -> blank-padded username.	 A null char = wildcard.
	DS:DX -> blank-padded machine name.  A null char = wildcard.
	CX = minutes until termination (0 = immediate)
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	you must have the "S" privilege to use this call
	you cannot log yourself out using this call
SeeAlso: AX=5F82h
--------N-215FCC-----------------------------
INT 21 - LANtastic v4.1+ - GET/SET SERVER CONTROL BITS
	AX = 5FCCh
	ES:DI -> ASCIZ server name in form "\\machine"
	CX = bit values (value of bits you want to set) (see #0950)
	DX = bit mask (bits you are interested in, 0 = get only) (see #0950)
Return: CF clear if successful
	    CX = control bits after call (see #0950)
	CF set on error
	    AX = error code
Note:	you must have the "S" privilege to SET, anyone can GET.

Bitfields for control bits:
Bit(s)	Description	(Table 0950)
 0	disable logins
--------N-215FCD-----------------------------
INT 21 - LANtastic v4.1+ - FLUSH SERVER CACHES
	AX = 5FCDh
	ES:DI -> ASCIZ server name in form "\\machine"
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	you must have the "S" privilege to use this call.
--------N-215FD0-----------------------------
INT 21 - LANtastic - GET REDIRECTED PRINTER TIMEOUT
	AX = 5FD0h
Return: CF clear if successful
	    CX = redirected printer timeout in clock ticks of 55ms
		0000h if timeout disabled
	CF set on error
	    AX = error code
SeeAlso: AX=5FD1h
--------N-215FD1-----------------------------
INT 21 - LANtastic - SET REDIRECTED PRINTER TIMEOUT
	AX = 5FD1h
	CX = printer timeout in clock ticks of 55ms, 0000h to disable timeouts
Return: CF clear if successful
	CF set on error
	    AX = error code
SeeAlso: AX=5FD0h
--------N-215FE0-----------------------------
INT 21 C - LANtastic - GET DOS SERVICE VECTOR
	AX = 5FE0h
Return: CF clear if successful
	    ES:BX -> current FAR service routine
	CF set on error
		 AX = error code
Note:	the service routine is called by the LANtastic redirector whenever DOS
	  may safely be called, permitting external TSRs and drivers to hook
	  into LANtastic's DOS busy flag checking
SeeAlso: AX=5FE1h,INT 28,INT 2A/AH=84h
--------N-215FE1-----------------------------
INT 21 - LANtastic - SET DOS SERVICE VECTOR
	AX = 5FE1h
	ES:BX -> FAR routine to call when DOS services are available
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	new handler must chain to previous handler as its first action
SeeAlso: AX=5FE0h
--------N-215FE2-----------------------------
INT 21 - LANtastic - GET MESSAGE SERVICE VECTOR
	AX = 5FE2h
Return: CF clear if successful
	    ES:BX -> current FAR message service routine
	CF set on error
	    AX = error code
SeeAlso: AX=5FE0h,AX=5FE3h
--------N-215FE3-----------------------------
INT 21 - LANtastic - SET MESSAGE SERVICE VECTOR
	AX = 5FE3h
	ES:BX -> FAR routine for processing network messages
Return: CF clear if successful
	CF set on error
	    AX = error code
Notes:	handler must chain to previous handler as its first action
	on invocation, ES:BX -> just-received message
SeeAlso: AX=5FE2h
--------D-2160-------------------------------
INT 21 - DOS 3.0+ - "TRUENAME" - CANONICALIZE FILENAME OR PATH
	AH = 60h
	DS:SI -> ASCIZ filename or path
	ES:DI -> 128-byte buffer for canonicalized name
Return: CF set on error
	    AX = error code
		02h invalid component in directory path or drive letter only
		03h malformed path or invalid drive letter
	    ES:DI buffer unchanged
	CF clear if successful
	    AH = 00h
	    AL = destroyed (00h or 5Ch or last char of current dir on drive)
	    buffer filled with qualified name of form D:\PATH\FILE.EXT or
			\\MACHINE\PATH\FILE.EXT
Desc:	determine the canonical name of the specified filename or path,
	  corresponding to the undocumented TRUENAME command in COMMAND.COM
Notes:	the input path need not actually exist
	letters are uppercased, forward slashes converted to backslashes,
	  asterisks converted to appropriate number of question marks, and
	  file and directory names are truncated to 8.3 if necessary.  (DR-DOS
	  3.41 and 5.0 do not expand asterisks)
	'.' and '..' in the path are resolved
	filespecs on local drives always start with "d:", those on network
	  drives always start with "\\"
	if path string is on a JOINed drive, the returned name is the one that
	  would be needed if the drive were not JOINed; similarly for a
	  SUBSTed, ASSIGNed, or network drive letter.	Because of this, it is
	  possible to get a qualified name that is not legal under the current
	  combination of SUBSTs, ASSIGNs, JOINs, and network redirections
	under DOS 3.3 through 6.00, a device name is translated differently if
	  the device name does not have an explicit directory or the directory
	  is \DEV (relative directory DEV from the root directory works
	  correctly).  In these cases, the returned string consists of the
	  unchanged device name and extension appended to the string X:/
	  (forward slash instead of backward slash as in all other cases) where
	  X is the default or explicit drive letter.
	functions which take pathnames require canonical paths if invoked via
	  INT 21/AX=5D00h
	supported by OS/2 v1.1 compatibility box
	NetWare 2.1x does not support characters with the high bit set; early
	  versions of NetWare 386 support such characters except in this call.
	  In addition, NetWare returns error code 3 for the path "X:\"; one
	  should use "X:\." instead.
	for DOS 3.3-6.0, the input and output buffers may be the same, as the
	  canonicalized name is built in an internal buffer and copied to the
	  specified output buffer as the very last step
	for DR DOS 6.0, this function is not automatically called when on a
	  network.  Device drivers reportedly cannot make this call from their
	  INIT function.  Using the same pointer for both input and output
	  buffers is not supported in the April 1992 and earlier versions of
	  DR DOS
	Corel's CORELCDX and MSCDEX without the /S switch return canonical
	  names of the form "\\D.\A.\path", where "D" is the CD-ROM drive
	  letter and "A" appears to indicate the first physical CD-ROM drive;
	  MSCDEX with the /S switch returns a canonical name with embedded
	  blanks
SeeAlso: AX=5FB3h,INT 2F/AX=1123h,INT 2F/AX=1221h
--------D-2161-------------------------------
INT 21 - DOS 3+ - UNUSED
	AH = 61h
Return: AL = 00h
Note:	this function does nothing and returns immediately
--------O-2161--BP6467-----------------------
INT 21 U - OS/2 v1.x FAPI - OS/2 FILE SYSTEM JOIN/SUBST
	AH = 61h
	BP = 6467h ("dg")
	AL = function
	    00h list
	    01h add
	    02h delete
	BX = drive number
	CX = size of buffer
	SI = type (0002h JOIN, 0003h SUBST)
	ES:DI -> buffer
Return: ???
Notes:	used by JOIN and SUBST to communicate with the OS/2 file system
	also supported by OS/2 v2.0+ Virtual DOS Machines
--------D-2162-------------------------------
INT 21 - DOS 3+ - GET CURRENT PSP ADDRESS
	AH = 62h
Return: BX = segment of PSP for current process
Notes:	under DOS 3+, this function does not use any of the DOS-internal stacks
	  and may thus be called at any time, even during another INT 21h call
	the current PSP is not necessarily the caller's PSP
	identical to the undocumented AH=51h
SeeAlso: AH=50h,AH=51h
--------D-216300-----------------------------
INT 21 - DOS 2.25 only - GET LEAD BYTE TABLE ADDRESS
	AX = 6300h
Return: CF clear if successful
	    DS:SI -> lead byte table (see #0951)
	CF set on error
	    AX = error code (01h) (see #0885 at AH=59h)
Notes:	does not preserve any registers other than SS:SP
	the US version of MS-DOS 3.30 treats this as an unused function,
	  setting AL=00h and returning immediately
SeeAlso: AX=6301h,AH=07h,AH=08h,AH=0Bh

Format of double-byte character set lead byte table entry:
Offset	Size	Description	(Table 0951)
 00h  2 BYTEs	low/high ends of a range of leading byte of double-byte chars
 02h  2 BYTEs	low/high ends of a range of leading byte of double-byte chars
	...
  N   2 BYTEs	00h,00h end flag
--------D-216300-----------------------------
INT 21 - Far East DOS 3.2+ - GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE
	AX = 6300h
Return: AL = error code
	    00h successful
		DS:SI -> DBCS table (see #0952)
		all other registers except CS:IP and SS:SP destroyed
	    FFh not supported
Notes:	probably identical to AH=63h/AL=00h for DOS 2.25
	the US version of MS-DOS 3.30 treats this as an unused function,
	  setting AL=00h and returning immediately
	the US version of DOS 4.0+ accepts this function, but returns an empty
	  list
SeeAlso: AX=6300h"DOS 2.25"

Format of DBCS table:
Offset	Size	Description	(Table 0952)
 00h  2 BYTEs	low/high ends of a range of leading byte of double-byte chars
 02h  2 BYTEs	low/high ends of a range of leading byte of double-byte chars
	...
  N   2 BYTEs	00h,00h end flag
--------D-216301-----------------------------
INT 21 - DOS 2.25, Far East DOS 3.2+ - SET KOREAN (HANGEUL) INPUT MODE
	AX = 6301h
	DL = new mode
	    00h return only full characters on DOS keyboard input functions
	    01h return partially-formed (interim) characters also
Return: AL = status
	    00h successful
	    FFh invalid mode
Note:	Novell DOS 7 simply stores DL in the caller's PSP (see #0603 at AH=26h)
SeeAlso: AH=07h,AH=08h,AH=0Bh,AH=63h,AX=6302h
--------D-216302-----------------------------
INT 21 - DOS 2.25, Far East DOS 3.2+ - GET KOREAN (HANGEUL) INPUT MODE
	AX = 6302h
Return: AL = status
	    00h successful
		DL = current input mode
		    00h return only full characters (clears interim flag)
		    01h return partial characters (sets interim flag)
	    FFh not supported
Note:	Novell DOS 7 simply reads the value out of the caller's PSP, so it
	  can return values other than 00h or 01h if the last call to AX=6301h
	  used another value
SeeAlso: AH=07h,AH=08h,AH=0Bh,AH=63h,AX=6301h
--------D-2164-------------------------------
INT 21 - DOS 3.2+ internal - SET DEVICE DRIVER LOOKAHEAD FLAG
	AH = 64h
	AL = flag
		00h (default) call device driver function 5 (non-dest read)
			before INT 21/AH=01h,08h,0Ah
	    nonzero don't call driver function 5
Return: nothing (MS-DOS)
	CF set, AX=error code??? (DR-DOS 5.0, which does not support this call)
Notes:	this function is called by the DOS 3.3+ PRINT.COM
	under MS-DOS, this function does not use any of the DOS-internal stacks
	  and may thus be called at any time, even during another DOS call
SeeAlso: AH=01h,AH=08h,AH=0Ah,AX=5D06h
--------O-2164--DX0000-----------------------
INT 21 U - OS/2 v2.0+ Virtual DOS Machine - ENABLE AUTOMATIC TITLE SWITCH
	AH = 64h
	DX = 0000h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
Note:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
SeeAlso: AH=64h/DX=0001h,INT 21/AH=4Bh
--------O-2164--DX0001-----------------------
INT 21 U - OS/2 v2.0+ Virtual DOS Machine - SET SESSION TITLE
	AH = 64h
	DX = 0001h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
	ES:DI -> new ASCIZ title (max 12 char) or "" to restore default title
Note:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
SeeAlso: AH=64h/DX=0000h,AH=64h/DX=0002h,INT 15/AH=12h/BH=05h
--------O-2164--DX0002-----------------------
INT 21 U - OS/2 v2.0+ Virtual DOS Machine - GET SESSION TITLE
	AH = 64h
	DX = 0002h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
	ES:DI -> 13-byte buffer for current title
Return: buffer filled (single 00h if title never changed)
Note:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
SeeAlso: AH=64h/DX=0000h,AH=64h/DX=0001h,INT 15/AH=12h/BH=05h
--------O-2164--DX0003-----------------------
INT 21 U - OS/2 v2.1 Virtual DOS Machine - GET LASTDRIVE
	AH = 64h
	DX = 0003h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
Return: AL = highest drive supported
Notes:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
	used by WinOS2
	not supported by OS/2 Warp 3.0, check list of lists instead (see #0840)
SeeAlso: AH=52h
--------O-2164--DX0004-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - GET SIZE OF PTDA JFT
	AH = 64h
	DX = 0004h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
Return: AX = number of entries in OS/2 JFT for VDM
Notes:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
	in an OS/2 VDM, the DOS Job File Table in the PSP contains an index
	  into the OS/2 JFT in the Per-Task Data Area rather than an SFT index
	  because the OS/2 SFT can contain more than 255 entries
--------O-2164--DX0005-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - GET SECOND SFT FLAGS WORD
	AH = 64h
	DX = 0005h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
	DI = DOS file handle
Return: AX = value of second flags word from OS/2 SFT entry for file
Notes:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
	the OS/2 SFT has two flags words rather than DOS's one word, and this
	  function provides access to the word which is not present in DOS
--------O-2164--DX0006-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - UNLOAD DOSKRNL SYMBOLS & LOAD PROGR
	AH = 64h
	DX = 0006h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
	ES:DI -> ASCIZ filespec
	DS = base address for loading
Notes:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
	this function is only supported by the kernel debugging version of
	  OS2KRNL
--------O-2164--DX0007-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - GET WinOS2 CALL GATE ADDRESS
	AH = 64h
	DX = 0007h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
Return: AX = call gate address
Notes:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
	used by WinOS2 to make direct calls to OS2KRNL, bypassing the overhead
	  of DOSKRNL
--------O-2164--DX0008-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - GET LOADING MESSAGE
	AH = 64h
	DX = 0008h (function number)
	CX = 636Ch (magic value, "cl")
	BX = 0000h (indicates special request)
Return: DS:DX -> '$'-terminated message "Loading.  Please wait."
Notes:	if CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug
	  in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
	this function permits National Language Support for the initial message
	  displayed while WinOS2 starts a full-screen session
--------O-2164--CX636C-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - OS/2 API support
	AH = 64h
	CX = 636Ch ("cl")
	BX = API ordinal (see #0953)
	other registers as appropriate for API call
Return: as appropriate for API call
SeeAlso: AH=64h/BX=0025h,AH=64h/BX=00B6h,AH=64h/BX=00CBh

(Table 0953)
Values for OS/2 API ordinal:
 0025h	DOS32StartSession
 0082h	DosGetCP
 00B6h	DosQFSAttach
 00BFh	DosEditName
 00CBh	DosForceDelete
 0144h	Dos32CreateEventSem
 0145h	Dos32OpenEvenSem
 0146h	Dos32CloseEventSem
 0147h	Dos32ResetEventSem
 0148h	Dos32PostEventSem
 0149h	Dos32WaitEventSem
 014Ah	Dos32QueryEventSem
 014Bh	Dos32CreateMutexSem
 014Ch	Dos32OpenMutexSem
 014Dh	Dos32CloseMutexSem
 014Eh	Dos32RequestMutexSem
 014Fh	Dos32ReleaseMutexSem
 0150h	Dos32QueryMutexSem
 0151h	Dos32CreateMuxWaitSem
 0152h	Dos32OpenMuxWaitSem
 0153h	Dos32CloseMuxWaitSem
 0154h	Dos32WaitMuxWaitSem
 0155h	Dos32AddMuxWaitSem
 0156h	Dos32DeleteMuxWaitSem
 0157h	Dos32QueryMuxWaitSem
--------O-2164--BX0025-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - OS/2 API DOS32StartSession
	AH = 64h
	BX = 0025h (API ordinal)
	CX = 636Ch ("cl")
	DS:SI -> STARTDATA structure (see #0954)
Return: AX = return code
SeeAlso: AH=64h/CX=636Ch,AH=64h/BX=00B6h

Format of OS/2 Virtual DOS Machine STARTDATA structure:
Offset	Size	Description	(Table 0954)
 00h	WORD	length of structure (must be 0018h,001Eh,0020h,0032h,or 003Ch)
 02h	WORD	relation of new process to caller (00h independent, 01h child)
 04h	WORD	fore/background (00h foreground, 01h background)
 06h	WORD	trace options (00h-02h, 00h = no trace)
 08h	DWORD	pointer to ASCIZ program title (max 62 chars) or 0000h:0000h
 0Ch	DWORD	pointer to ASCIZ program name (max 128 chars) or 0000h:0000h
 10h	DWORD	pointer to ASCIZ program args (max 144 chars) or 0000h:0000h
 14h	DWORD	"TermQ" (currently reserved, must be 00000000h)
 18h	DWORD	pointer to environment (max 486 bytes) or 0000h:0000h
 1Ch	WORD	inheritance (00h or 01h)
 1Eh	WORD	session type
		00h OS/2 session manager determines type (default)
		01h OS/2 full-screen
		02h OS/2 window
		03h PM
		04h VDM full-screen
		07h VDM window
 20h	DWORD	pointer to ASCIZ icon filename (max 128 chars) or 0000h:0000h
 24h	DWORD	"PgmHandle" (currently reserved, must be 00000000h)
 28h	WORD	"PgmControl"
 2Ah	WORD	initial column
 2Ch	WORD	initial row
 2Eh	WORD	initial width
 30h	WORD	initial height
 32h	WORD	reserved (0)
 34h	DWORD	"ObjectBuffer" (currently reserved, must be 00000000h)
 38h	DWORD	"ObjectBufferLen" (currently reserved, must be 00000000h)
--------O-2164--BX00B6-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - OS/2 API DosQFSAttach
	AH = 64h
	BX = 00B6h (API ordinal)
	CX = 636Ch (magic value "cl")
	DS = user's data segment
	ES:DI -> FSQAttachStruc (see #0955)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX = 0000h
	    data buffer filled
SeeAlso: AH=64h/CX=636Ch

Format of OS/2 Virtual DOS Machine FSQAttachStruc:
Offset	Size	Description	(Table 0955)
 00h	DWORD	reserved
 04h	DWORD	pointer to the offset of the data buffer length
 08h	DWORD	pointer to the offset of the data buffer
 0Ch	WORD	FSA Info level
 0Eh	WORD	ordinal index into table
 10h	DWORD	pointer to the offset of the device name
Notes:	The segment value of the buffer, buffer length, and device
	  name MUST all be the same.  It is defined on entry in the DS
	  register.  The details of each info level are defined in the
	  OS/2 CP Reference.
--------O-2164--BX00CB-----------------------
INT 21 U - OS/2 v2.1+ Virtual DOS Machine - OS/2 API DosForceDelete
	AH = 64h
	BX = 00CBh (API ordinal)
	CX = 636Ch (magic value "cl")
	DS:DX -> ASCIZ filename
Return: CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (02h,03h,05h) (see #0885 at AH=59h)
Desc:	delete a file without saving it to the undelete directory
SeeAlso: AH=41h,AH=64h/CX=636Ch
--------D-2165-------------------------------
INT 21 - DOS 3.3+ - GET EXTENDED COUNTRY INFORMATION
	AH = 65h
	AL = info ID
	    01h get general internationalization info
	    02h get pointer to uppercase table
	    04h get pointer to filename uppercase table
		 05h get pointer to filename terminator table
	    06h get pointer to collating sequence table
	    07h (DOS 4+) get pointer to Double-Byte Character Set table
	BX = code page (FFFFh=global code page)
	DX = country ID (FFFFh=current country)
	ES:DI -> country information buffer (see #0956)
	CX = size of buffer (>= 5)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    CX = size of country information returned
	    ES:DI -> country information
Notes:	AL=05h appears to return same info for all countries and codepages; it
	  has been documented for DOS 5+, but was undocumented in ealier
	  versions
	NLSFUNC must be installed to get info for countries other than the
	  default
	subfunctions 02h and 04h are identical under OS/2
SeeAlso: AH=38h,INT 2F/AX=1401h,INT 2F/AX=1402h,INT 2F/AX=14FEh

Format of country information:
Offset	Size	Description	(Table 0956)
 00h	BYTE	info ID
---if info ID = 01h---
 01h	WORD	size
 03h	WORD	country ID
 05h	WORD	code page
 07h 34 BYTEs	country-dependent info (see AH=38h)
---if info ID = 02h---
 01h	DWORD	pointer to uppercase table (see #0957)
---if info ID = 04h---
 01h	DWORD	pointer to filename uppercase table (see #0958)
---if info ID = 05h---
 01h	DWORD	pointer to filename character table (see #0959)
---if info ID = 06h---
 01h	DWORD	pointer to collating table (see #0960)
---if info ID = 07h (DOS 4+)---
 01h	DWORD	pointer to DBCS lead byte table (see #0961)

Format of uppercase table:
Offset	Size	Description	(Table 0957)
 00h	WORD	table size
 02h 128 BYTEs	uppercase equivalents (if any) of chars 80h to FFh

Format of filename uppercase table:
Offset	Size	Description	(Table 0958)
 00h	WORD	table size
 02h 128 BYTEs	uppercase equivalents (if any) of chars 80h to FFh

Format of filename terminator table:
Offset	Size	Description	(Table 0959)
 00h	WORD	table size (not counting this word)
 02h	BYTE	??? (01h for MS-DOS 3.30-6.00)
 03h	BYTE	lowest permissible character value for filename
 04h	BYTE	highest permissible character value for filename
 05h	BYTE	??? (00h for MS-DOS 3.30-6.00)
 06h	BYTE	first excluded character in range \ all characters in this
 07h	BYTE	last excluded character in range  / range are illegal
 08h	BYTE	??? (02h for MS-DOS 3.30-6.00)
 09h	BYTE	number of illegal (terminator) characters
 0Ah  N BYTEs	characters which terminate a filename:	."/\[]:|<>+=;,
Note:	partially documented for DOS 5+, but undocumented for earlier versions

Format of collating table:
Offset	Size	Description	(Table 0960)
 00h	WORD	table size
 02h 256 BYTEs	values used to sort characters 00h to FFh

Format of DBCS lead byte table:
Offset	Size	Description	(Table 0961)
 00h	WORD	length
 02h 2N BYTEs	start/end for N lead byte ranges
	WORD	0000h	(end of table)
--------D-2165-------------------------------
INT 21 - DOS 4+ - COUNTRY-DEPENDENT CHARACTER CAPITALIZATION
	AH = 65h
	AL = function
	    20h capitalize character
		DL = character to capitalize
		Return: DL = capitalized character
	    21h capitalize string
		DS:DX -> string to capitalize
		CX = length of string
	    22h capitalize ASCIZ string
		DS:DX -> ASCIZ string to capitalize
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
Note:	these calls have been documented for DOS 5+, but were undocumented in
	  DOS 4.x.
--------D-216523-----------------------------
INT 21 U - DOS 4+ internal - DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE
	AX = 6523h
	DL = character
	DH = second character of double-byte character (if applicable)
Return: CF set on error
	CF clear if successful
	    AX = type
		00h no
		01h yes
		02h neither yes nor no
--------D-2165-------------------------------
INT 21 U - DOS 4+ internal - COUNTRY-DEPENDENT FILENAME CAPITALIZATION
	AH = 65h
	AL = function
	    A0h capitalize filename character
		DL = character to capitalize
		Return: DL = capitalized character
	    A1h capitalize counted filename string
		DS:DX -> filename string to capitalize
		CX = length of string
	    A2h capitalize ASCIZ filename
		DS:DX -> ASCIZ filename to capitalize
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
Note:	nonfunctional in DOS 4.00 through 6.00 due to a bug (the code sets a
	  pointer depending on the high bit of AL, but doesn't clear the
	  bit before branching by function number).
--------D-216601-----------------------------
INT 21 - DOS 3.3+ - GET GLOBAL CODE PAGE TABLE
	AX = 6601h
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    BX = active code page (see #0962)
	    DX = system code page (see #0962)
SeeAlso: AX=6602h
--------D-216602-----------------------------
INT 21 - DOS 3.3+ - SET GLOBAL CODE PAGE TABLE
	AX = 6602h
	BX = active code page (see #0962)
	DX = system code page (active page at boot time)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX = EB41h (Novell NWDOS v7.0 when NLSFUNC not installed and
		  request was for previously-active code page)
SeeAlso: AX=6601h,INT 2F/AX=14FFh

(Table 0962)
Values for code page:
 437	US
 850	Multilingual
 852	Slavic/Latin II (DOS 5+)
 857	Turkish
 860	Portugal
 861	Iceland
 863	Canada (French)
 865	Norway/Denmark
--------D-2167-------------------------------
INT 21 - DOS 3.3+ - SET HANDLE COUNT
	AH = 67h
	BX = size of new file handle table for process
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at AH=59h)
Desc:	adjust the size of the per-process open file table, thus raising or
	  lowering the limit on the number of files the caller can open
	  simultaneously
Notes:	if BX <= 20,="" no="" action="" is="" taken="" if="" the="" handle="" limit="" has="" not="" yet="" been="" increased,="" and="" the="" table="" is="" copied="" back="" into="" the="" psp="" if="" the="" limit="" is="" currently=""> 20 handles
	for file handle tables of > 20 handles, DOS 3.30 never reuses the
	  same memory block, even if the limit is being reduced; this can lead
	  to memory fragmentation as a new block is allocated and the existing
	  one freed
	only the first 20 handles are copied to child processes in DOS 3.3-6.0
	increasing the file handles here will not, in general, increase the
	  number of files that can be opened using the runtime library of a
	  high-level language such as C
	Novell DOS 7 reportedly terminates the calling program if the JFT is
	  being reduced in size and there are any open file handles beyond
	  the portion of the JFT being retained
BUGS:	the original release of DOS 3.30 allocates a full 64K for the handle
	  table on requests for an even number of handles
	DR-DOS 3.41 and 5.0 will lose track of any open file handles beyond
	  the portion of the JFT retained after the call; MS-DOS will indicate
	  error 04h if any of the JFT entries to be removed are open
SeeAlso: AH=26h,AH=86h
--------D-2168-------------------------------
INT 21 - DOS 3.3+ - "FFLUSH" - COMMIT FILE
	AH = 68h
	BX = file handle
Return: CF clear if successful
	    all data still in DOS disk buffers is written to disk immediately,
	      and the file's directory entry is updated
	CF set on error
	    AX = error code (see #0885 at AH=59h)
SeeAlso: AX=5D01h,AH=6Ah,INT 2F/AX=1107h
--------D-2169-------------------------------
INT 21 U - DOS 4+ internal - GET/SET DISK SERIAL NUMBER
	AH = 69h
	AL = subfunction
	    00h get serial number
	    01h set serial number
	BL = drive (0=default, 1=A, 2=B, etc)
	BH = info level (00h only for DOS; OS/2 allows other levels)
	DS:DX -> disk info (see #0963)
Return: CF set on error
	    AX = error code (see #0885 at AH=59h)
	CF clear if successful
	    AX destroyed
	    (AL = 00h) buffer filled with appropriate values from extended BPB
	    (AL = 01h) extended BPB on disk set to values from buffer
Notes:	does not generate a critical error; all errors are returned in AX
	error 0005h given if no extended BPB on disk
	does not work on network drives (error 0001h)
	buffer after first two bytes is exact copy of bytes 27h thru 3Dh of
	  extended BPB on disk
	this function is supported under Novell NetWare versions 2.0A through
	  3.11; the returned serial number is the one a DIR would display,
	  the volume label is the NetWare volume label, and the file system
	  is set to "FAT16".
	the serial number is computed from the current date and time when the
	  disk is created; the first part is the sum of the seconds/hundredths
	  and month/day, the second part is the sum of the hours/minutes and
	  year
	the volume label which is read or set is the one stored in the extended
	  BPB on disks formatted with DOS 4.0+, rather than the special root
	  directory entry used by the DIR command in COMMAND.COM (use AH=11h
	  to find that volume label)
SeeAlso: AX=440Dh

Format of disk info:
Offset	Size	Description	(Table 0963)
 00h	WORD	info level (zero)
 02h	DWORD	disk serial number (binary)
 06h 11 BYTEs	volume label or "NO NAME    " if none present
 11h  8 BYTEs	(AL=00h only) filesystem type--string "FAT12   " or "FAT16   "
--------O-2169-------------------------------
INT 21 - DR-DOS 5.0 - NULL FUNCTION
	AH = 69h
Return: AL = 00h
SeeAlso: AH=18h
--------v-216969-----------------------------
INT 21 - VIRUS - "Rape-747" - INSTALLATION CHECK
	AX = 6969h
Return: AX = 0666h if resident
SeeAlso: AX=58CCh,AH=76h"VIRUS"
--------d-2169FFDX0000-----------------------
INT 21 U - CUBIT v4.00 - GET CUBIT INT 21 HANDLER
	AX = 69FFh
	DX = 0000h
	BX = CB00h (magic value)
Return: ES:BX -> CUBITR.EXE handler for INT 21
Note:	the installation check consists of testing that the first eight bytes
	  at the returned interrupt handler are EBh 07h "CUBITR" (a short
	  jump around the signature followed by the signature); the byte
	  following the signature (i.e. ES:[BX+8]) indicates whether CUBITR
	  is active (01h) or disabled (00h)
SeeAlso: AX=69FFh/DX=CFBFh
Index:	installation check;CUBIT
--------d-2169FFDXCFBF-----------------------
INT 21 U - CUBIT v4.00 - UNINSTALL
	AX = 69FFh
	DX = CFBFh
	CX = EFCFh
	BX = CB00h (magic value)
Return: ES:BX -> CUBITR.EXE handler for INT 21
	CX = status
	    2020h successful
	    2222h failed
Note:	if DX is neither 0000h nor CFBFh on entry, some other code is executed
SeeAlso: AX=69FFh/DX=0000h
--------D-216A-------------------------------
INT 21 U - DOS 4+ - COMMIT FILE
	AH = 6Ah
	BX = file handle
Return: CF clear if successful
	    AH = 68h
	CF set on error
	    AX = error code (06h) (see #0885 at AH=59h)
Note:	identical to AH=68h in DOS 5.0-6.0; not known whether this is the case
	  in DOS 4.x
SeeAlso: AH=68h
--------D-216B-------------------------------
INT 21 U - DOS 4.0 internal - IFS IOCTL
	AH = 6Bh
	AL = subfunction
	    00h ???
		DS:SI -> Current Directory Structure???
		CL = drive (1=A:)
	    01h ???
		DS:SI -> ???
		CL = file handle???
	    02h ???
		DS:SI -> Current Directory Structure???
		DI = ???
		CX = drive (1=A:)
Return: CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	passed through to INT 2F/AX=112Fh with AX on top of stack
SeeAlso: AH=6Bh"DOS 5",INT 2F/AX=112Fh
--------D-216B-------------------------------
INT 21 U - DOS 5+ - NULL FUNCTION
	AH = 6Bh
Return: AL = 00h
Note:	this function does nothing and returns immediately
SeeAlso: AH=6Bh"DOS 4"
--------D-216C00-----------------------------
INT 21 - DOS 4+ - EXTENDED OPEN/CREATE
	AX = 6C00h
	BL = open mode as in AL for normal open (see also AH=3Dh)
	    bit 7: inheritance
	    bits 4-6: sharing mode
	    bit 3 reserved
	    bits 0-2: access mode
	BH = flags
	    bit 6 = auto commit on every write (see also AH=68h)
	    bit 5 = return error rather than doing INT 24h
	CX = create attribute (see #0965)
	DL = action if file exists/does not exist (see #0966)
	DH = 00h (reserved)
	DS:SI -> ASCIZ file name
Return: CF set on error
	   AX = error code (see #0885 at AH=59h)
	CF clear if successful
	   AX = file handle
	   CX = status (see #0964)
Notes:	the PC LAN Program only supports DL=01h, DL=10h/sharing=compatibility,
	  and DL=12h
	DR-DOS reportedly does not support this function and does not return
	  an "invalid function call" error when this function is used.
	the documented bits of BX are stored in the SFT when the file is opened
	  (see #0853,#0854)
BUG:	this function has bugs (at least in DOS 5.0 and 6.2) when used with
	  drives handled via the network redirector (INT 2F/AX=112Eh):
	    - CX (attribute) is not passed to the redirector if DL=11h,
	    - CX does not return the status, it is returned unchanged because
	      DOS does a PUSH CX/POP CX when calling the redirector.
SeeAlso: AH=3Ch,AH=3Dh,AX=6C01h,AH=71h,INT 2F/AX=112Eh

(Table 0964)
Values for extended open function status:
 01h	file opened
 02h	file created
 03h	file replaced

Bitfields for file create attribute:
Bit(s)	Description	(Table 0965)
 6-15	reserved
 5	archive
 4	reserved
 3	volume label
 2	system
 1	hidden
 0	readonly

Bitfields for action:
Bit(s)	Description	(Table 0966)
 7-4	action if file does not exist
	0000 fail
	0001 create
 3-0	action if file exists
	0000 fail
	0001 open
	0010 replace/open
--------O-216C01-----------------------------
INT 21 U - OS/2 v2.0 - "DosOpen2"
	AX = 6C01h
	BL = open mode as in AL for normal open (see also AH=3Dh)
	    bit 7: inheritance
	    bits 4-6: sharing mode
	    bit 3 reserved
	    bits 0-2: access mode
	BH = flags
		 bit 6 = auto commit on every write (see also AH=68h)
	    bit 5 = return error rather than doing INT 24h
	CX = create attribute (see #0965)
	DL = action if file exists/does not exist (see #0966)
	DH = 00h (reserved)
	DS:SI -> ASCIZ file name
	ES:DI -> EAOP structure
Return: CF set on error
	   AX = error code (see #0885 at AH=59h)
	CF clear if successful
	   AX = file handle
	   CX = status (see #0964)
Note:	this function is virtually identical to AX=6C00h, but supports OS/2's
	  extended attributes
SeeAlso: AX=5704h,AX=6C00h,AH=6Fh"OS/2"
--------D-216D-------------------------------
INT 21 U - DOS 5+ ROM - FIND FIRST ROM PROGRAM
	AH = 6Dh
	DS:DX -> ASCIZ program name (may contain wildcrds)
Return: CF clear if found
	    [DTA] = ROM search structure (see #0967)
	CF set if not found
	    AX = error code
		0002h name not found in ROM
		0003h name contains colon or backslash
Notes:	the '*' wildcard matches all remaining characters in a ROM program's
	  name; any following characters in the search mask are ignored up to
	  another asterisk, which must be matched by an asterisk in the
	  found program's name.
	the search mask and program names may contain multiple periods
SeeAlso: AH=1Ah,AH=4Eh,AH=6Eh,AX=6F00h,AX=6F02h

Format of ROM search structure:
Offset	Size	Description	(Table 0967)
 00h 13 BYTEs	ASCIZ name of found ROM program
 0Dh	DWORD	address at which to resume search (do not modify)
 11h	var	ASCIZ search mask passed in (do not modify)
--------O-216D-------------------------------
INT 21 U - OS/2 v1.x FAPI - "DosMkDir2"
	AH = 6Dh
	???
Return: ???
Note:	also supported by OS/2 v2.0+ Virtual DOS Machines
SeeAlso: AH=39h
--------O-216D-------------------------------
INT 21 U - Novell DOS 7 - NOP
	AH = 6Dh
Return: AX = 0000h
Note:	this function invokes the same code as other NOP functions such as
	  AH=18h and AH=61h
--------D-216E-------------------------------
INT 21 U - DOS 5+ ROM - FIND NEXT ROM PROGRAM
	AH = 6Eh
	[DTA] = result of previous FindFirst ROM (see AH=6Dh)
Return: CF clear if found
	    [DTA] = updated ROM search structure (see #0967)
	CF set if not found
	    AX = 0012h (no more matches)
SeeAlso: AH=4Fh,AH=6Dh
--------O-216E-------------------------------
INT 21 U - OS/2 v1.x FAPI - "DosENumAttrib"
	AH = 6Eh
	???
Return: ???
Note:	also supported by OS/2 v2.0+ Virtual DOS Machines
SeeAlso: AX=5703h,AH=6Fh"OS/2",INT 2F/AX=112Dh
--------O-216F-------------------------------
INT 21 U - OS/2 v1.x FAPI - "DosQMaxEASize" - GET MAXIMUM SIZE OF EXTENDED ATTR
	AH = 6Fh
	???
Return: ???
Note:	also supported by OS/2 v2.0+ Virtual DOS Machines
SeeAlso: AX=5703h,AX=6C01h,AH=6Eh"OS/2"
--------D-216F00-----------------------------
INT 21 U - DOS 5+ ROM - GET ROM SCAN START ADDRESS
	AX = 6F00h
Return: CF clear
	AL = 00h
	BX = current ROM scan starting segment
SeeAlso: AH=6Dh,AX=6F01h,AX=6F02h
--------D-216F01-----------------------------
INT 21 U - DOS 5+ ROM - SET ROM SCAN START ADDRESS
	AX = 6F01h
	BX = new ROM scan starting address
Return: CF clear
	AL = 00h
SeeAlso: AX=6F00h,AX=6F03h
--------D-216F02-----------------------------
INT 21 U - DOS 5+ ROM - GET EXCLUSION REGION LIST
	AX = 6F02h
	ES:BX -> buffer for exclusion region list (see #0968)
Return: CF clear
	AL = 00h
	ES:BX = 0000h:0000h on error, unchanged if buffer filled
SeeAlso: AX=6F00h,AX=6F03h

Format of ROM exclusion region list:
Offset	Size	Description	(Table 0968)
 00h	WORD	number of entries
 02h 2N WORDs	start/end segments of N excluded regions
--------D-216F03-----------------------------
INT 21 U - DOS 5+ ROM - SET EXCLUSION REGION LIST
	AX = 6F03h
	DS:DX -> new exclusion region list (see #0968)
Return: CF clear
	AL = 00h
Notes:	DOS saves only the pointer and assumes that the contents of the list
	  are never changed, and that regions do not overlap
	if AL > 03h on entry, DOS returns CF set/AL=01h
SeeAlso: AX=6F01h,AX=6F02h
----------217070BX6060-----------------------
INT 21 - PCW Weather Card interface - GET DATA SEGMENT
	AX = 7070h
	BX = 6060h
	CX = 7070h
	DX = 7070h
	SI = 7070h
	DI = 7070h
Return: AX = segment of data structure (see #0969)
Notes:	the data structure is at offset 516 from this segment
	the update byte is at offset 514 from this segment.  Updates are
	  once per second while this byte is nonzero and it is decremented
	  once per second.  While this byte is 0 updates are once per minute.
SeeAlso: AX=7070h/BX=7070h

Format of PCW Weather Card data structure:
Offset	Type	Description	(Table 0969)
 00h	WORD	hour
 02h	WORD	minute
 04h	WORD	second
 06h	WORD	day
 08h	WORD	month
 0Ah	WORD	year
 0Ch	WORD	???
 0Eh	WORD	relative barometric pressure (in 1/100 inches)
 10h	WORD	???
 12h	WORD	???
 14h	WORD	temperature 1 (in 1/10 degrees F)
 16h	WORD	temperature 1 lowest (in 1/10 degrees F)
 18h	WORD	temperature 1 highest (in 1/10 degrees F)
 1Ah	WORD	temperature 2 (in 1/10 degrees F)
 1Ch	WORD	temperature 2 lowest (in 1/10 degrees F)
 1Eh	WORD	temperature 2 highest (in 1/10 degrees F)
 20h	WORD	wind speed (in MPH)
 22h	WORD	average of 60 wind speed samples (in MPH)
 24h	WORD	highest wind speed (in MPH)
 26h	WORD	wind chill factor  (in 1/10 degrees F)
 28h	WORD	lowest wind chill factor (in 1/10 degrees F)
 2Ah	WORD	???
 2Ch	WORD	wind direction (in degrees)
 2Eh	WORD	accumulated daily rainfall (in 1/10 inches)
 30h	WORD	accumulated annual rainfall (in 1/10 inches)
----------217070BX7070-----------------------
INT 21 - PCW Weather Card interface - INSTALLATION CHECK
	AX = 7070h
	BX = 7070h
	CX = 7070h
	DX = 7070h
	SI = 7070h
	DI = 7070h
Return: AX = 0070h
	BX = 0070h
	CX = 0070h
	DX = 0070h
	SI = 0070h
	DI = 0070h
SeeAlso: AX=7070h/BX=6060h,AX=8080h
--------D-2171-------------------------------
INT 21 - DOS 7 (Chicago) - LONG FILENAME FUNCTIONS
	AH = 71h
	AL = function
	    39h create directory
	    3Ah remove directory
	    3Bh set current directory
	    41h delete file
	    43h get file attributes (BL=00h), set file attributes (BL=01h)
	    47h get current directory
	    4Eh find first file
	    4Fh find next file
	    56h move (rename) file
	    6Ch create/open file
Return: CF set on error
	    AX = error code
		7100h if function not supported
	CF clear if successful
	    other registers as for corresponding "old" DOS function
Notes:	if error 7100h is returned, the old-style function should be called
	AX=714Eh returns a "search handle" which must be passed to AX=714Fh;
	  when the search is complete, AH=72h must be called to terminate
	  the search
SeeAlso: AH=39h,AH=3Ah,AH=3Bh,AH=41h,AH=43h,AH=47h,AH=4Eh,AH=4Fh,AH=56h,AH=6Ch
SeeAlso: AH=72h
--------D-2172-------------------------------
INT 21 - DOS 7 (Chicago) - "FindClose" - TERMINATE DIRECTORY SEARCH
	AH = 72h
	details not yet available
Note:	this function must be called after starting a search with AX=714Eh,
	  to indicate that the search handle returned by that function will
	  no longer be used
SeeAlso: AH=4Eh,AH=71h
--------v-2176-------------------------------
INT 21 - VIRUS - "Klaeren"/"Hate" - INSTALLATION CHECK
	AH = 76h
Return: AL = 48h if resident
SeeAlso: AX=6969h,AX=7700h"VIRUS"
--------v-217700-----------------------------
INT 21 - VIRUS - "Growing Block" - INSTALLATION CHECK
	AX = 7700h
Return: AX = 0920h if resident
SeeAlso: AH=76h,AX=7BCEh,AH=7Fh
--------V-217734-----------------------------
INT 21 U - SCROLLit v1.7 - INSTALLATION CHECK
	AX = 7734h
Return: DX = 3477h if installed
	    AX = segment of resident code
Program: ScrollIt is a shareware backscroll utility by Bromfield Software
	  Products
--------U-217761-----------------------------
INT 21 - WATCH.COM v3.2+ - INSTALLATION CHECK
	AX = 7761h ('wa')
Return: AX = 6177h
Note:	WATCH.COM is part of the "TSR" package by TurboPower Software
SeeAlso: INT 16/AX=7761h
----------217BCE-----------------------------
INT 21 - VIRUS - "Whisper"/"Taipan" - INSTALLATION CHECK???
	AX = 7BCEh
Return: ???
SeeAlso: AX=7700h,AH=7Fh"VIRUS"
--------v-217F-------------------------------
INT 21 - VIRUS - "Squeaker" - INSTALLATION CHECK
	AH = 7Fh
Return: AH = 80h if resident
SeeAlso: AX=7BCEh,AH=83h"VIRUS"
--------D-2180-------------------------------
INT 21 - European MS-DOS 4.0 - "AEXEC" - EXECUTE PROGRAM IN BACKGROUND
	AH = 80h
	CX = mode
	    0000h place child in zombie mode on exit to preserve exit code
	    0001h discard child process and exit code on termination
	DS:DX -> ASCIZ full program name
	ES:BX -> parameter block (as for AX=4B00h)
Return: CF clear if successful
	    AX = Command Subgroup ID (CSID)
	CF set on error
	    AX = error code (see #0885 at AH=59h)
Program: European MS-DOS 4.0 was written for Siemens in Germany and then used
	  by several other European OEMs; its release falls between mainstream
	  versions 3.2 and 3.3
Desc:	asynchronously execute a program, creating a new process for it
Notes:	this function is called by the DETACH command
	there is a system-wide limit of 32 processes
	the CSID is used to identify all processes that have been spawned by
	  a given process, whether directly or indirectly
	programs to be run in the background must use the new executable format
	  (see #0809 at AH=4Bh)
	background processes may only perform asynchronous (background) EXECs,
	  either this function or AX=4B04h
	background processes may execute INT 11, INT 12, INT 21, INT 2A, and
	  INT 2F at any time; they may execute INT 10 and INT 16 only while
	  they have opened a popup screen via INT 2F/AX=1401h; no other
	  interrupts may be executed from the background
	background processes may not use drive B: or overlay their code
	  segments
	see AX=8700h for an installation check
	the "NE" new executable format made its first appearance in European
	  MS-DOS 4.0
SeeAlso: AH=4Bh,AH=87h,INT 2F/AX=1400h"POPUP"
----------218080-----------------------------
INT 21 - PCW Weather Card interface - UNINSTALL PCW.COM AND FREE MEMORY
	AX = 8080h
Return: ???
SeeAlso: AX=7070h/BX=7070h
--------D-2181-------------------------------
INT 21 - European MS-DOS 4.0 - "FREEZE" - STOP A PROCESS
	AH = 81h
	BX = flag (00h freeze command subtree, 01h only specified process)
	CX = Process ID of head of command subtree
Return: CF clear if successful
	CF set on error
	    AX = error code (no such process)
Desc:	temporarily suspend a process or a process and all of its children
Note:	if BX=0001h, this call will not return until the process is actually
	  frozen, which may not be until after it unblocks from an I/O
	  operation
SeeAlso: AH=82h,AH=89h,AX=8E00h,INT 15/AX=101Dh
--------D-2182-------------------------------
INT 21 - European MS-DOS 4.0 - "RESUME" - RESTART A PROCESS
	AH = 82h
	BX = flag (00h resume command subtree, 01h only specified process)
	CX = Process ID of head of command subtree
Return: CF clear if successful
	CF set on error
	    AX = error code (no such process)
Desc:	restart a previously-suspended process or a process and all of its
	  children
SeeAlso: AH=81h,INT 15/AX=101Eh
--------D-2183-------------------------------
INT 21 - European MS-DOS 4.0 - "PARTITION" - GET/SET FOREGROUND PARTITION SIZE
	AH = 83h
	AL = function
	    00h get size
	    01h set new size
		BX = new size in paragraphs
Return: CF clear if successful
	    BX = current size (function 00h) or old size (function 01h)
	CF set on error
	    AX = error code (01h,07h,0Dh)(see #0885 at AH=59h)
Desc:	specify or determine how much memory may be allocated by the foreground
	  process
Note:	if the partition size is set to 0000h, no partition management is done
	  and all memory allocation is compatible with DOS 3.2.
	the partition size can be changed regardless of what use is being made
	  of the changed memory; subsequent allocations will follow the
	  partition rules (foreground processes may allocate only foreground
	  memory; background processes allocate background memory first, then
	  foreground memory)
SeeAlso: AH=48h,AH=4Ah
--------v-2183-------------------------------
INT 21 - VIRUS - "SVC" - INSTALLATION CHECK
	AH = 83h
Return: DX = 1990h if resident
SeeAlso: AH=76h,AH=84h"VIRUS"
--------v-2184-------------------------------
INT 21 - VIRUS - "SVC 5.0" or "SVC 6.0" - INSTALLATION CHECK
	AH = 84h
Return: DX = 1990h if resident
	    BH = version number (major in high nybble, minor in low)
SeeAlso: AH=83h"VIRUS",AH=89h"VIRUS"
--------D-218400-----------------------------
INT 21 - European MS-DOS 4.0 - "CREATMEM" - CREATE A SHARED MEMORY AREA
	AX = 8400h
	BX = size in bytes (0000h = 65536)
	CX = flags
	    bit 6: zero-initialize segment
	DS:DX -> ASCIZ name (must begin with "\SHAREMEM\")
Return: CF clear if successful
	    AX = segment address of shared memory global object
	CF set on error
	    AX = error code (06h,08h) (see #0885 at AH=59h)
Desc:	create an area of memory which may be accessed by multiple processes
Notes:	shared memory objects are created as special files (thus the
	  restriction on the name)
	on successful creation, the reference count is set to 1
SeeAlso: AX=8401h,AX=8402h,INT 15/AX=DE19h
--------D-218401-----------------------------
INT 21 - European MS-DOS 4.0 - "GETMEM" - OBTAIN ACCESS TO SHARED MEMORY AREA
	AX = 8401h
	CX = flags
	    bit 7: writable segment (ignored by MS-DOS 4.0)
	DS:DX -> ASCIZ name (must begin with "\SHAREMEM\")
Return: CF clear if successful
	    AX = segment address of shared memory global object
	    CX = size in bytes
	CF set on error
	    AX = error code (invalid name)
Desc:	get address of a previously-created area of memory which may be
	  accessed by multiple processes
Note:	this call increments the reference count for the shared memory area
SeeAlso: AX=8400h,AX=8402h
--------D-218402-----------------------------
INT 21 - European MS-DOS 4.0 - "RELEASEMEM" - FREE SHARED MEMORY AREA
	AX = 8402h
	BX = handle (segment address of shared memory object)
Return: CF clear if successful
	CF set on error
	    AX = error code (no such name)
Desc:	indicate that the specified area of shared memory will no longer be
	  used by the caller
Note:	the reference count is decremented and the shared memory area is
	  deallocated if the new reference count is zero
SeeAlso: AX=8400h,AX=8401h,INT 15/AX=DE19h
--------D-2185-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 85h
	???
Return: ???
--------D-2186-------------------------------
INT 21 - European MS-DOS 4.0 - "SETFILETABLE" - INSTALL NEW FILE HANDLE TABLE
	AH = 86h
	BX = total number of file handles in new table
Return: CF clear if successful
	CF set on error
	    AX = error code (06h,08h) (see #0885 at AH=59h)
Desc:	adjust the size of the per-process open file table, thus raising or
	  lowering the limit on the number of files the caller can open
	  simultaneously
Notes:	any currently-open files are copied to the new table
	if the table is increased beyond the default 20 handles, only the
	  first 20 will be inherited by child processes
	error 06h is returned if the requested number of handles exceeds
	  system limits or would require closing currently-open files
SeeAlso: AH=26h,AH=67h
--------D-2187-------------------------------
INT 21 - European MS-DOS 4.0 - "GETPID" - GET PROCESS IDENTIFIER
	AH = 87h
Return: AX = PID
	BX = parent process's PID
	CX = Command Subgroup ID (CSID)
Program: European MS-DOS 4.0 was written for Siemens in Germany and then used
	  by several other European OEMs; its release falls between mainstream
	  versions 3.2 and 3.3
Desc:	determine an identifier by which to access the calling process
Notes:	called by MS C v5.1 getpid() function
	this function apparently must return AX=0001h for INT 21/AH=80h to
	  succeed
	one possible check for European MS-DOS 4.0 is to issue this call with
	  AL=00h and check whether AL is nonzero on return
SeeAlso: AH=30h,AH=62h,AH=80h
Index:	installation check;European MS-DOS 4.0
--------D-2188-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 88h
	???
Return: ???
SeeAlso: AH=87h
--------D-2189-------------------------------
INT 21 - European MS-DOS 4.0 - SLEEP
	AH = 89h
	CX = time in milliseconds or 0000h to give up time slice
Return: CF clear if successful
	    CX = 0000h
	CF set on error
	    AX = error code (interrupted system call)
	    CX = sleep time remaining
Desc:	suspend the calling process for the specified duration
Notes:	the sleep interval is rounded up to the next higher increment of the
	  scheduler clock, and may be extended further if other processes are
	  running
	this call may be interrupted by signals (see AH=8Dh)
	reportedly called by Microsoft C 4.0 startup code
	background processes have higher priority than the foreground process,
	  and should thus periodically yield the CPU
SeeAlso: AH=81h,INT 15/AX=1000h,INT 2F/AX=1680h,INT 7A/BX=000Ah
--------v-2189-------------------------------
INT 21 - VIRUS - "Vriest" - INSTALLATION CHECK
	AH = 89h
Return: AX = 0123h if resident
SeeAlso: AH=84h"VIRUS",AH=90h"VIRUS"
--------D-218A-------------------------------
INT 21 - European MS-DOS 4.0 - "CWAIT" - WAIT FOR CHILD TO TERMINATE
	AH = 8Ah
	BL = range (00h command subtree, 01h any child)
	BH = suspend flag
	    00h suspend if children exist but none are dead
	    01h return if no dead children
	CX = Process ID of head of command subtree
Return: CF clear if successful
	    AH = termination type (see #0970)
	    AL = return code from child or aborting signal
	    BX = PID of child (0000h if no dead children)
	CF set on error
	    AX = error code (no child,interrupted system call)
Desc:	get return code from an asynchronously-executed child program,
	  optionally waiting if no return code is available
SeeAlso: AH=4Bh,AH=4Dh,AH=80h,AH=8Dh

(Table 0970)
Values for termination type:
 00h	normal termination
 01h	aborted by Control-C
 02h	aborted by I/O error
 03h	terminate and stay resident
 04h	aborted by signal
 05h	aborted by program error
--------D-218B-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 8Bh
	???
Return: ???
SeeAlso: AH=87h
--------D-218C-------------------------------
INT 21 - European MS-DOS 4.0 - SET SIGNAL HANDLER
	AH = 8Ch
	AL = signal number (see #0971)
	BL = action (see #0972)
	DS:DX -> signal handler (see #0973)
Return: CF clear if successful
	    AL = previous action
	    ES:BX -> previous signal handler
	CF set on error
	    AX = error code (01h,invalid SigNumber or Action)
		  (see #0885 at AH=59h)
Desc:	set the routine which will be invoked on a number of exceptional
	  conditions
Note:	all signals will be sent to the most recently installed handler
SeeAlso: AH=8Dh

(Table 0971)
Values for European MS-DOS 4.0 signal number:
 01h	SIGINTR		Control-C or user defined interrupt key
 08h	SIGTERM		program termination
 09h	SIGPIPE		broken pipe
 0Dh	SIGUSER1	reserved for user definition
 0Eh	SIGUSER2	reserved for user definition

(Table 0972)
Values for signal action:
 00h	SIG_DFL		terminate process on receipt
 01h	SIG_IGN		ignore signal
 02h	SIG_GET		signal is accepted
 03h	SIG_ERR		sender gets error
 04h	SIG_ACK		acknowledge received signal and clear it, but don't
			  change current setting

(Table 0973)
Values signal handler is called with:
	AL = signal number (see #0971)
	AH = signal argument
Return: RETF, CF set: terminate process
	RETF, CF clear, ZF set: abort any interrupted system call with an error
	RETF, CF clear, ZF clear: restart any interrupted system call
	IRET: restart any interrupted system call
Note:	the signal handler may also perform a nonlocal GOTO by resetting the
	  stack pointer and jumping; before doing so, it should dismiss the
	  signal by calling this function with BL=04h
--------D-218D-------------------------------
INT 21 - European MS-DOS 4.0 - SEND SIGNAL
	AH = 8Dh
	AL = signal number (see #0971)
	BH = signal argument
	BL = action
	    00h send to entire command subtree
	    01h send only to specified process
	DX = Process ID
Return: CF clear if successful
	CF set on error
	    AX = error code (01h,06h)(see #0885 at AH=59h)
Desc:	invoke the exceptional-condition handler for the specified process
Note:	error 06h may be returned if one or more of the affected processes
	  have an error handler for the signal
SeeAlso: AH=8Ch
--------D-218E00BH00-------------------------
INT 21 - European MS-DOS 4.0 - "SETPRI" - GET/SET PROCESS PRIORITY
	AX = 8E00h
	BH = 00h
	BL = action
	    00h set priority for command subtree
	    01h set priority for specified process only
	CX = Process ID
	DH = 00h
	DL = change in priority (00h to get priority)
Return: CF clear if successful
	    DL = process priority
	    DH destroyed
	CF set on error
	    AX = error code (01h,no such process)(see #0885 at AH=59h)
Desc:	specify or determine the execution priority of the specified process
	  or the process and all of its children
SeeAlso: AH=81h
--------D-218F-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 8Fh
	???
Return: ???
SeeAlso: AH=87h
--------D-2190-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 90h
	???
Return: ???
SeeAlso: AH=87h
--------v-2190-------------------------------
INT 21 - VIRUS - "Carioca" - INSTALLATION CHECK
	AH = 90h
Return: AH = 01h if resident
SeeAlso: AH=89h"VIRUS",AX=9753h"VIRUS"
--------D-2191-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 91h
	???
Return: ???
SeeAlso: AH=87h
--------D-2192-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 92h
	???
Return: ???
SeeAlso: AH=87h
--------D-2193-------------------------------
INT 21 - European MS-DOS 4.0 - "PIPE" - CREATE A NEW PIPE
	AH = 93h
	CX = size in bytes
Return: CF clear if successful
	    AX = read handle
	    BX = write handle
	CF set on error
	    AX = error code (08h) (see #0885 at AH=59h)
Desc:	create a communications channel which may be used for interprocess
	  data and command exchanges
SeeAlso: AH=3Ch,AH=3Fh,AH=40h,AH=84h
--------D-2194-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 94h
	???
Return: ???
SeeAlso: AH=87h
--------D-2195-------------------------------
INT 21 - European MS-DOS 4.0 - HARD ERROR PROCESSING
	AH = 95h
	AL = new state
	   00h enabled
	   01h disabled, automatically fail hard errors
Return: AX = previous setting
Desc:	specify whether hard (critical) errors should automatically fail the
	  system call or invoke an INT 24
SeeAlso: INT 24
--------D-2196-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 96h
	???
Return: ???
--------D-2197-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 97h
	???
Return: ???
--------v-219753-----------------------------
INT 21 - VIRUS - "Nina" - INSTALLATION CHECK
	AX = 9753h
Return: never (executes original program) if virus resident
SeeAlso: AH=90h"VIRUS",AX=A1D5h"VIRUS"
--------D-2198-------------------------------
INT 21 U - European MS-DOS 4.0 - ???
	AH = 98h
	???
Return: ???
--------D-2199-------------------------------
INT 21 u - European MS-DOS 4.0 - "PBLOCK" - BLOCK A PROCESS
	AH = 99h
	DS:BX -> memory location to block on
	CX = timeout in milliseconds
	DH = nonzero if interruptable
Return: CF clear if awakened by event
	    AX = 0000h
	CF set if unusual wakeup
	    ZF set if timeout, clear if interrupted by signal
	    AX = nonzero
Desc:	suspend calling process until another process sends a "restart" signal
	  or a timeout occurs
SeeAlso: AH=9Ah,INT 2F/AX=0802h
--------D-219A-------------------------------
INT 21 u - European MS-DOS 4.0 - "PRUN" - UNBLOCK A PROCESS
	AH = 9Ah
	DS:BX -> memory location processes may have blocked on
Return: AX = number of processes awakened
	ZF set if no processes awakened
Program: European MS-DOS 4.0 was written for Siemens in Germany and then used
	  by several other European OEMs; its release falls between mainstream
	  versions 3.2 and 3.3
Desc:	restart all processes waiting for the specified "restart" signal
SeeAlso: AH=99h,INT 2F/AX=0802h
--------I-21A0-------------------------------
INT 21 - Attachmate Extra! - GET 3270 DISPLAY STATE
	AH = A0h
Return: AL = display status (see #0974)
	BX = host window status (see #0975)
Program: Attachmate Extra! is a 3270 emulator by Attachmate Corporation
SeeAlso: AH=A1h

Bitfields for Attachmate Extra! display status:
Bit(s)	Description	(Table 0974)
 7	0=windowed, 1=enlarged
 6-3	current screen profile number 0-9
 2-0	active window number (0=PC, 1-4=host B-E, 5-6=notepad F-G)

Bitfields for host window status:
Bit(s)	Description	(Table 0975)
 15	reserved
 14	0=host E window installed, 1=not
 13	0=host E terminal on, 1=off
 12	0=host E window displayed, 1=not
 11	reserved
 10	0=host D window installed, 1=not
 9	0=host D terminal on, 1=off
 8	0=host D window displayed, 1=not
 7	reserved
 6	0=host C window installed, 1=not
 5	0=host C terminal on, 1=off
 4	0=host C window displayed, 1=not
 3	reserved
 2	0=host B window installed, 1=not
 1	0=host B terminal on, 1=off
 0	0=host B window displayed, 1=not
--------I-21A1-------------------------------
INT 21 - Attachmate Extra! - SET 3270 DISPLAY STATE
	AH = A1h
	AL = new display status byte (see #0974)
SeeAlso: AH=A0h,AH=A2h
--------v-21A1D5-----------------------------
INT 21 - VIRUS - "789"/"Filehider" - INSTALLATION CHECK
	AX = A1D5h
Return: AX = 900Dh if resident
SeeAlso: AX=9753h,AX=A55Ah
--------I-21A2-------------------------------
INT 21 - Attachmate Extra! - SET HOST WINDOW STATE
	AH = A2h
	AL = new host window status byte (see #0976)
SeeAlso: AH=A1h

Bitfields for Attachmate Extra! host window status:
Bit(s)	Description	(Table 0976)
 7	0=power off, 1=power on
 6	0=not installed, 1=installed
 5-3	reserved
 2-0	window number 1-4=host B-E
--------I-21A3-------------------------------
INT 21 - Attachmate Extra! - SEND KEYSTROKES TO HOST WINDOW
	AH = A3h
	AL = window number (1-4=host B-E)
	CX = 0001h
	DS:BX -> keystroke buffer
	DL = zero if keystroke buffer contains host function code (see #0977),
	      non-zero if keystroke buffer contains ASCII character
Return: CX = zero if character sent, non-zero if not
	BX incremented if CX=0

(Table 0977)
Values for Attachmate Extra! host function code:
 00h=reserved	10h=PF16	20h=Clear	30h=SysReq
 01h=PF1	11h=PF17	21h=Print	31h=ErInp
 02h=PF2	12h=PF18	22h=Left	32h=ErEof
 03h=PF3	13h=PF19	23h=Right	33h=Ident
 04h=PF4	14h=PF20	24h=Up		34h=Test
 05h=PF5	15h=PF21	25h=Down	35h=Reset
 06h=PF6	16h=PF22	26h=Home	36h=DevCncl
 07h=PF7	17h=PF23	27h=Fast Left	37h=Dup
 08h=PF8	18h=PF24	28h=Fast Right	38h=FldMark
 09h=PF9	19h=Alt on	29h=Bksp	39h=Enter
 0Ah=PF10	1Ah=Alt off	2Ah=Insert	3Ah=CrSel
 0Bh=PF11	1Bh=Shift on	2Bh=Delete
 0Ch=PF12	1Ch=Shift off	2Ch=Backtab
 0Dh=PF13	1Dh=PA1		2Dh=Tab
 0Eh=PF14	1Eh=PA2		2Eh=Newline
 0Fh=PF15	1Fh=PA3		2Fh=Attn
--------I-21A4-------------------------------
INT 21 - Attachmate Extra! - GET HOST WINDOW BUFFER ADDRESS
	AH = A4h
	AL = window number (1-4=host B-E)
Return: DS:BX -> 3270 display buffer
SeeAlso: AH=A5h,AH=B8h
--------I-21A5-------------------------------
INT 21 - Attachmate Extra! - GET HOST WINDOW CURSOR POSITION
	AH = A5h
	AL = window number (1-4=host B-E)
Return: BX = cursor position (80 * row + column, where 0:0 is upper left)
Note:	if the host window is configured with the Extended Attribute (EAB)
	  feature, multiply the cursor position by 2 to obtain the byte offset
	  into the display buffer
SeeAlso: AH=A4h
--------v-21A55A-----------------------------
INT 21 - VIRUS - "Eddie-2" - INSTALLATION CHECK
	AX = A55Ah
Return: AX = 5AA5h if resident
SeeAlso: AX=A1D5h,AX=AA00h
--------v-21AA00-----------------------------
INT 21 - VIRUS - "Blinker" - INSTALLATION CHECK
	AX = AA00h
Return: AX = 00AAh if resident
SeeAlso: AX=A55Ah,AX=AA03h
--------v-21AA03-----------------------------
INT 21 - VIRUS - "Backtime" - INSTALLATION CHECK
	AX = AA03h
Return: AX = 03AAh if resident
SeeAlso: AX=AA00h,AH=ABh
--------v-21AB-------------------------------
INT 21 - VIRUS - "600" or "Voronezh"-family - INSTALLATION CHECK
	AH = ABh
Return: AX = 5555h if resident
SeeAlso: AX=AA03h,AX=BBBBh"VIRUS"
--------I-21AF-------------------------------
INT 21 - Attachmate Extra! - GET TRANSLATE TABLE ADDRESS
	AH = AFh
Return: DS:BX -> translate tables (see #0978)

Format of Attachmate Extra! translate tables:
Offset	Size	Description	(Table 0978)
 00h 256 BYTEs	ASCII to 3270 buffer code translate table
100h 256 BYTEs	3270 buffer code to ASCII translate table
200h 256 BYTEs	3270 buffer code to EBCDIC translate table
300h 256 BYTEs	EBCDIC to 3270 buffer code translate table
--------N-21B300-----------------------------
INT 21 U - Novell NetWare - CHECK LIP/PACKET SIGNING/IPX CHECKSUM SUPPORT???
	AX = B300h
Return: AX = 0000h if supported???
Note:	this function appeared with the packet signing/Large Internet Packets/
	  IPX Checksum-aware NetWare shells
SeeAlso: AX=B301h,AX=B302h
--------N-21B301-----------------------------
INT 21 U - Novell NetWare - CHECK SIGNATURE LEVEL???
	AX = B301h
Return: AX = 0000h if supported???
	    BX:CX indicate signature level (see #0979)
Note:	this function appeared with the packet signing/Large Internet Packets/
	  IPX Checksum-aware NetWare shells
SeeAlso: AX=B300h,AX=B304h,#1581 at INT 2F/AX=7A20h/BX=0000h

(Table 0979)
Values for signature level indicator:
 0000h:0000h = signature level 0
 0002h:0000h = signature level 1
 0202h:0000h = signature level 2
 0202h:0202h = signature level 3
--------N-21B302-----------------------------
INT 21 U - Novell NetWare - START PACKET SIGNING
	AX = B302h
	CX = server connection (1-8)
	DS:SI -> 24-byte buffer containing ???
Return: ???
Notes:	this function appeared with the packet signing/Large Internet Packets/
	  IPX Checksum-aware NetWare shells
	if packet signing is active, this call is required if and only if the
	  last call successfully authenticated the workstation to the server
SeeAlso: AX=B300h,#1581
--------N-21B304-----------------------------
INT 21 U - Novell NetWare - SET SIGNATURE LEVEL
	AX = B304h
	BX:CX = new signature level (see AX=B301h)
Return: ???
Note:	this function appeared with the packet signing/Large Internet Packets/
	  IPX Checksum-aware NetWare shells
SeeAlso: AX=B300h,AX=B301h,AX=B306h,#1581
--------N-21B306-----------------------------
INT 21 - Novell NetWare - RENEGOTIATE SECURITY LEVEL
	AX = B306h
	CX = server connection number (01h-08h)
Return: ???
Note:	this function appeared with the packet signing/Large Internet Packets/
	  IPX Checksum-aware NetWare shells
SeeAlso: AX=B300h,AX=B304h,#1581
--------N-21B4-------------------------------
INT 21 U - Novell NetWare - "AttachHandle"
	AH = B4h
	DS:SI -> input buffer (see #0980)
Return: AX = DOS file handle or return code
Note:	this is an interface provided by NetWare to give DOS file access to
	  NetWare files on non-DOS systems such as Macintosh, OS/2, and Unix
SeeAlso: AX=E909h

Format of Novell NetWare input buffer:
Offset	Size	Description	(Table 0980)
 00h	BYTE	"WorkFileServer"
 01h	BYTE	access code
 02h	DWORD	"OpenHandle"
 06h	WORD	"OpenHandleCount"
 08h	DWORD	"OpenFileSize"
Note:	the six bytes at 02h-07h appear to be the six-byte NetWare handle
	  returned by AX=E909h
--------N-21B500-----------------------------
INT 21 U - Novell NetWare - VNETWARE.386 API - GET INSTANCE DATA
	AX = B500h
Return: ES:BX -> data
	CX = length
SeeAlso: AX=B501h,AX=B502h
--------N-21B501-----------------------------
INT 21 U - Novell NetWare - VNETWARE.386 API - END VIRTUAL MACHINE
	AX = B501h
SeeAlso: AX=B500h,AX=B502h
--------N-21B502-----------------------------
INT 21 U - Novell NetWare - VNETWARE.386 API - START VIRTUAL MACHINE
	AX = B502h
SeeAlso: AX=B500h,AX=B501h
--------N-21B5-------------------------------
INT 21 - Novell NetWare shell 3.01 - TASK MODE CONTROL
	AH = B5h
	AL = subfunction
	    03h get task mode
		Return: AH = 00h
			AL = current task mode byte (see #0981)
	    04h get task mode pointer
		Return: ES:BX -> task mode byte
Notes:	the task mode byte specifies how task cleanup should be performed, but
	  is declared to be version-dependent
	allows a program to disable the automatic cleanup for programs managing
	  task swapping, etc.

(Table 0981)
Values for NetWare task mode byte in version 3.01:
 00h-03h reserved
 04h	 no task cleanup
--------N-21B505-----------------------------
INT 21 U - Novell NetWare - VNETWARE.386 API - SET VIRTUAL MACHINE ID
	AX = B505h
	???
Return: ???
SeeAlso: AX=B502h,AX=B506h
--------N-21B506-----------------------------
INT 21 U - Novell NetWare - VNETWARE.386 API - GET VIRTUAL MACH SUPPORT LEVEL
	AX = B506h
Return: AX = ??? (0002h)
SeeAlso: AX=B505h
--------N-21B507-----------------------------
INT 21 - Novell NetWare - NetWare Shell - GET NUMBER OF PACKET BURST BUFFERS
	AX = B507h
Return: AL = number of packet burst buffers (configured at shell load time)
--------N-21B6-------------------------------
INT 21 - Novell NetWare - FILE SERVICES - EXTENDED FILE ATTRIBUTES
	AH = B6h
	AL = subfunction
	    00h get extended file attributes
	    01h set extended file attributes
		CL = extended file attributes (see #0982)
	DS:DX -> ASCIZ pathname (max 255 bytes)
Return: CF set on error
	    AL = error code
		8Ch caller lacks privileges
		FEh not permitted to search directory
		FFh file not found
	CF clear if successful
	    AL = 00h (success)
	    CL = current extended file attributes (see #0982)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=4300h,AH=E3h/SF=0Fh

Bitfields for NetWare extended file attributes:
Bit(s)	Description	(Table 0982)
 2-0	search mode (executables only)
	000 none (use shell's default search)
	001 search on all opens without path
	010 do not search
	011 search on read-only opens without path
	100 reserved
	101 search on all opens
	110 reserved
	111 search on all read-only opens
 3	reserved
 4	transactions on file tracked
 5	file's FAT indexed
 6	read audit (to be implemented)
 7	write audit (to be implemented)
--------N-21B7-------------------------------
INT 21 U - Novell NetWare - "HoldFileModeSet" (obsolete)
	AH = B7h
	AL = new value for HoldFileFlag
Return: AL = previous value of HoldFileFlag
Note:	this function provided backward compatibility with a bug in early
	  DOS versions and CP/M, but is no longer used or supported
--------I-21B8-------------------------------
INT 21 - Attachmate Extra! - DISABLE HOST BUFFER UPDATES
	AH = B8h
	AL = window number (1-4=host B-E)
	DL = 01h
Notes:	only valid in CUT mode
	next AID keystroke (eg Enter) enables host buffer updates
SeeAlso: AH=A4h
--------N-21B800-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET DEFAULT CAPTURE FLAGS
	AX = B800h
	CX = size of reply buffer (01h-3Fh)
	ES:BX -> reply buffer for capture flags table (see #0983)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 2.0+
SeeAlso: AX=B801h,AX=B802h,AH=DFh/DL=00h,AH=DFh/DL=04h

Format of NetWare capture flags table:
Offset	Size	Description	(Table 0983)
 00h	BYTE	status (used internally, should be set to 00h)
 01h	BYTE	print flags (see #0984)
 02h	BYTE	tab size (01h-12h, default 08h)
 03h	BYTE	printer number on server (00h-04h, default 00h)
 04h	BYTE	number of copies to print (00h-FFh, default 01h)
 05h	BYTE	form type required in printer (default 00h)
 06h	BYTE	reserved
 07h 13 BYTEs	text to be placed on banner page
 14h	BYTE	reserved
 15h	BYTE	default local printer (00h = LPT1)
 16h	WORD	(big-endian) timeout in clock ticks for flushing capture file
		  on inactivity, or 0000h to disable timeout
 18h	BYTE	flush capture file on LPT close if nonzero
 19h	WORD	(big-endian) maximum lines per page
 1Bh	WORD	(big-endian) maximum characters per line
 1Dh 13 BYTEs	name of form required in printer
 2Ah	BYTE	LPT capture flag
		00h inactive, FFh LPT device is being captured
 2Bh	BYTE	file capture flag
		00h if no file specified, FFh if capturing to file
 2Ch	BYTE	timing out (00h if no timeout in effect, FFh if timeout counter
		  running)
 2Dh	DWORD	(big-endian) address of printer setup string
 31h	DWORD	(big-endian) address of printer reset string
 35h	BYTE	target connection ID
 36h	BYTE	capture in progress if FFh
 37h	BYTE	job queued for printing if FFh
 38h	BYTE	print job valid if FFh
 39h	DWORD	bindery object ID of print queue if previous byte FFh
 3Dh	WORD	(big-endian) print job number (1-999)

Bitfields for NetWare print flags:
Bit(s)	Description	(Table 0984)
 2	print capture file if interrupted by loss of connection
 3	no automatic form feed after print job
 6	printing control sequences interpreted by print service
 7	print banner page before capture file
--------N-21B801-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET DEFAULT CAPTURE FLAGS
	AX = B801h
	CX = size of buffer (01h-3Fh)
	ES:BX -> buffer containing capture flags table (see #0983)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 2.0+
SeeAlso: AX=B800h,AX=B803h,AH=DFh/DL=00h,AH=DFh/DL=04h
--------N-21B802-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET SPECIFIC CAPTURE FLAGS
	AX = B802h
	CX = size of reply buffer (01h-3Fh)
	DH = LPT port (00h-02h)
	ES:BX -> reply buffer for capture flags table (see #0983)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B803h,AH=DFh/DL=00h,AH=DFh/DL=04h
--------N-21B803-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET SPECIFIC CAPTURE FLAGS
	AX = B803h
	CX = size of buffer (01h-3Fh)
	DH = LPT port (00h-02h)
	ES:BX -> buffer containing capture flags table (see #0983)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B803h,AH=DFh/DL=00h,AH=DFh/DL=04h
--------N-21B804-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET DEFAULT LOCAL PRINTER
	AX = B804h
Return: DH = default LPT port (00h-02h)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B805h,AH=DFh/DL=00h
--------N-21B805-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET DEFAULT LOCAL PRINTER
	AX = B805h
	DH = new default LPT port (00h-02h)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B800h,AX=B804h,AH=DFh/DL=00h
--------N-21B806-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET CAPTURE PRINT QUEUE
	AX = B806h
	DH = LPT port (00h-02h)
	BX:CX = print queue's object ID
Return: AL = status
	    00h successful
	    FFh job already set
Desc:	specify the print queue on which a print job is to be placed the next
	  time a capture is started on the given printer port
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B801h,AX=B807h,AH=E0h/SF=09h
--------N-21B807-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET CAPTURE PRINT JOB
	AX = B807h
	DH = LPT port (00h-02h)
	BX = job number (see AH=E3h/SF=68h)
	SI:DI:CX = NetWare file handle (see AH=E3h/SF=68h)
Return: AL = status
	    00h successful
	    FFh job already queued
Desc:	specify the capture file and print job to be used for subsequent
	  output to the given printer port
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AX=B801h,AX=B806h,AH=E0/SF=09h,AH=E3h/SF=68h
--------N-21B808-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET BANNER USER NAME
	AX = B808h
	ES:BX -> 12-byte buffer for user name
Return: AL = status
	    00h successful
Desc:	get the user name which is printed on the banner page
Notes:	this function is supported by Advanced NetWare 2.1+
	the default name is the login name of the user
SeeAlso: AX=B809h
--------N-21B809-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SET BANNER USER NAME
	AX = B809h
	ES:BX -> 12-byte buffer containing user name
Return: AL = status
	    00h successful
Desc:	specify the user name which is printed on the banner page
Notes:	this function is supported by Advanced NetWare 2.1+
	the default name is the login name of the user
SeeAlso: AX=B808h
--------N-21B9-------------------------------
INT 21 U - Novell NetWare - "SpecialAttachableFunction"
	AH = B9h
	AL = FFh to hook this function
	    ES:BX -> function to invoke on AH=B9h when AL<>FFh
Note:	this function is no longer used or supported by current versions of
	  NetWare
--------N-21BA-------------------------------
INT 21 U - Novell NetWare - "ReturnCommandComPointers"
	AH = BAh
Return: DX = environment segment
	ES:DI -> COMMAND.COM drive
Desc:	used to edit the COMSPEC and PATH variables in the master environment
	  when mapping network drives
Note:	this function was documented in older Novell documents which are no
	  longer available
--------N-21BB-------------------------------
INT 21 - Novell NetWare - WORKSTATION - SET END OF JOB STATUS
	AH = BBh
	AL = new EOJ flag
	    00h disable EOJs
	    01h enable EOJs
Return: AL = old EOJ flag
Desc:	specify whether the network shell should automatically generate an
	  End of Job call when the root command processor regains control
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=19h,AH=D6h
--------v-21BBBB-----------------------------
INT 21 - VIRUS - "Hey You" - INSTALLATION CHECK
	AX = BBBBh
Return: AX = 6969h
SeeAlso: AH=ABh"VIRUS",AH=BEh"VIRUS"
--------N-21BC-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOG PHYSICAL RECORD
	AH = BCh
	AL = flags (see #0986)
	BX = file handle
	CX:DX = starting offset in file
	SI:DI = length of region to lock
	BP = timeout in timer ticks (1/18 sec)
		0000h = don't wait if already locked
Return: AL = status (see #0985)
Desc:	add the specified physical record to the log table, optionally locking
	  it
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=5Ch,AH=BDh,AH=BEh,AH=BFh,AH=C2h,AH=D0h

(Table 0985)
Values for NetWare status:
 00h	successful
 96h	no dynamic memory for file
 FEh	timed out
 FFh	failed

Bitfields for NetWare flags:
Bit(s)	Description	(Table 0986)
 0	lock as well as log record
 1	non-exclusive lock
--------N-21BD-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE PHYSICAL RECORD
	AH = BDh
	BX = file handle
	CX:DX = starting offset in file
	SI:DI = length of record
Return: AL = status
	    00h successful
	    FFh record not locked
Desc:	unlock the specified physical record but do not remove it from log
	  table
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=BCh,AH=BEh"NetWare",AH=C0h,AH=C3h,AH=D2h
--------N-21BE-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR PHYSICAL RECORD
	AH = BEh
	BX = file handle
	CX:DX = starting offset within file
	SI:DI = record length in bytes
Return: AL = status
	    00h successful
	    FFh specified record not locked
Desc:	unlock the physical record and remove it from the log table
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=5Ch,AH=BCh,AH=BDh,AH=C1h,AH=C4h,AH=D4h
--------v-21BE-------------------------------
INT 21 - VIRUS - "Datalock" - INSTALLATION CHECK
	AH = BEh
Return: AX = 1234h if resident
SeeAlso: AX=BBBBh,AX=BE00h
--------v-21BE00-----------------------------
INT 21 - VIRUS - "USSR-1049" - INSTALLATION CHECK
	AX = BE00h
	CF set
Return: CF clear if resident
SeeAlso: AH=BEh"VIRUS",AH=C0h"VIRUS"
--------N-21BF-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - LOG/LOCK RECORD (FCB)
	AH = BFh
	AL = flags (see #0986)
	DS:DX -> opened FCB (see #0574 at AH=0Fh)
	BX:CX = offset
	BP = lock timeout in timer ticks (1/18 sec) if AL nonzero
	SI:DI = length
Return: AL = error code (see #0985)
Note:	this function was added in NetWare 4.6, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=BCh,AH=C0h"NetWare",AH=C2h"NetWare"
--------!---Section--------------------------
Interrupt List, part 6 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------N-21C0-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - RELEASE RECORD (FCB)
	AH = C0h
	DS:DX -> non-extended FCB (see #0574 at AH=0Fh)
	BX:CX = offset
Return: AL = error code (see #0985)
Notes:	unlocks record but does not remove it from log table
	this function was added in NetWare 4.6, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=BDh,AH=BFh,AH=C1h"NetWare",AH=C3h
--------v-21C0-------------------------------
INT 21 - VIRUS - "Slow"/"Zerotime", "Solano" - INSTALLATION CHECK
	AH = C0h
Return: AX = 0300h if "Slow"/"Zerotime" resident
	AX = 1234h if "Solano" resident
SeeAlso: AX=BE00h,AH=C1h"VIRUS",AX=C301h"VIRUS"
--------N-21C1-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - CLEAR RECORD (FCB)
	AH = C1h
	DS:DX -> opened FCB (see #0574 at AH=0Fh)
	BX:CX = offset
Return: AL = error code (see #0985)
Note:	unlocks record and removes it from log table
	this function was added in NetWare 4.6, but was removed some time prior
	  to Advanced NetWare, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=BEh,AH=C0h"NetWare",AH=C4h
--------v-21C1-------------------------------
INT 21 - VIRUS - "Solano" - ???
	AH = C1h
	???
Return: ???
SeeAlso: AH=C0h"VIRUS"
--------N-21C2-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOCK PHYSICAL RECORD SET
	AH = C2h
	AL = flags
	    bit 1: non-exclusive lock
	BP = lock timeout in timer ticks (1/18 sec) 0000h = no wait
Return: AL = status
	    00h successful
	    FEh timed out
	    FFh failed
Desc:	attempt to lock all physical records listed in the log table
Notes:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	status FFh will be returned if one or more physical records have been
	  exclusively locked by another process
SeeAlso: AH=BFh,AH=C3h,AH=D1h
--------v-21C2-------------------------------
INT 21 - VIRUS - "Scott's Valley" - ???
	AH = C2h
	???
Return: ???
SeeAlso: AH=C0h"VIRUS"
--------N-21C3-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE PHYSICAL RECRD SET
	AH = C3h
Desc:	unlock all currently-locked physical records in the log table, but do
	  not remove them from the table
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=BDh,AH=C0h,AH=C2h"NetWare",AH=C4h,AH=D3h
--------v-21C301DXF1F1-----------------------
INT 21 - VIRUS - "905"/"Backfont" - INSTALLATION CHECK
	AX = C301h
	DX = F1F1h
Return: DX = 0E0Eh if resident
SeeAlso: AH=C0h"VIRUS",AX=C500h"VIRUS"
--------N-21C4-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR PHYSICAL RECORD SET
	AH = C4h
Desc:	unlock all physical records in the log table and remove them from the
	  log table
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=BEh,AH=C1h,AH=D5h
--------N-21C500-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - OPEN SEMAPHORE
	AX = C500h
	DS:DX -> semaphore name (counted string, max 127 bytes)
	CL = initial value for semaphore
Return: AL = status
	    00h successful
		BL = number of processes having semaphore open
		CX:DX = semaphore handle
	    03h name length greater than 127 (see Novell document FYI.A.4611)
	    FEh invalid name length
	    FFh invalid semaphore value
Notes:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	the semaphore's value is incremented by AX=C503h and decremented by
	  AX=C502h
SeeAlso: AX=C501h,AX=C502h,AX=C503h,AX=C504h
--------v-21C500-----------------------------
INT 21 - VIRUS - "Sverdlov" - INSTALLATION CHECK
	AX = C500h
Return: AX = 6731h if resident
SeeAlso: AX=C301h"VIRUS",AH=C6h"VIRUS"
--------N-21C501-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - EXAMINE SEMAPHORE
	AX = C501h
	CX:DX = semaphore handle
Return: AL = status
	    00h successful
		CX = semaphore value (-127 to 127)
		DL = count of processes which have the semaphore open
	    FFh invalid handle
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C502h,AX=C504h
--------N-21C502-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - WAIT ON SEMAPHORE
	AX = C502h
	CX:DX = semaphore handle
	BP = timeout limit in timer ticks (1/18 sec)
		0000h return immediately if semaphore already zero or negative
Return: AL = status
	    00h successful
	    FEh timeout
	    FFh invalid handle
Desc:	decrement the semaphore's value, optionally waiting until its value
	  becomes positive before decrementing
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C501h,AX=C503h
--------N-21C503-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - SIGNAL SEMAPHORE
	AX = C503h
	CX:DX = semaphore handle
Return: AL = status
	    00h successful
	    01h semaphore value overflowed
	    FFh invalid handle
Desc:	increment the semaphore's value and signal the first process (if any)
	  in the queue waiting on the semaphore
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C502h
--------N-21C504-----------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLOSE SEMAPHORE
	AX = C504h
	CX:DX = semaphore handle
Return: AL = status
	    00h successful
	    FFh invalid handle
Desc:	decrement the semaphore's open count, and delete the semaphore if the
	  count reaches zero
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AX=C500h"NetWare",AX=C501h
--------N-21C6-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - GET OR SET LOCK MODE
	AH = C6h
	AL = subfunction
	    00h set old "compatibility" mode (default)
	    01h set new extended locks mode
	    02h get lock mode
Return: AL = current lock mode
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	the locking mode should be 01h for NetWare 4.61+ and Advanced
	  NetWare 1.0+ locking calls, and 00h for all older calls
SeeAlso: AH=BCh,AH=C4h,AH=D0h
--------v-21C6-------------------------------
INT 21 - VIRUS - "Socha" - INSTALLATION CHECK
	AH = C6h
Return: AL = 55h if resident
SeeAlso: AX=C500h"VIRUS",AX=C603h
--------v-21C603-----------------------------
INT 21 - VIRUS - "Yankee Doodle" or "MLTI" - INSTALLATION CHECK
	AX = C603h
	BX = version number (002Ch or 002Dh)
	CF set
Return: CF clear if resident
	ZF set if resident and input BX matches version
SeeAlso: AX=C500h"VIRUS",AX=C700h"VIRUS"
--------N-21C700-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - BEGIN TRANSACTION
	AX = C700h
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AL = error code
		96h out of memory
		FEh implicit transaction already active, converted to explicit
		FFh explicit transaction already active
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C701h,AX=C702h,AX=C703h
--------v-21C700-----------------------------
INT 21 - VIRUS - "MH-757" - INSTALLATION CHECK
	AX = C700h
Return: AL = 07h if resident
SeeAlso: AX=C603h"VIRUS",AH=CBh"VIRUS"
--------N-21C701-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - END TRANSACTION
	AX = C701h
Return: AL = status (00h,FDh-FFh) (see #0987)
	    00h successful
		CX:DX = transaction number
	CF clear except when AL=FFh
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C700h"NetWare",AX=C703h

(Table 0987)
Values for NetWare TTS status:
 00h	successful
 FDh	transaction tracking disabled
 FEh	transaction ended records locked
 FFh	no explicit transaction active
--------N-21C702-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - INSTALLATION CHECK
	AX = C702h
Return: AL = status
	    00h not available
	    01h available
	    FDh available but disabled
Desc:	determine whether the default file server supports TTS
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
--------N-21C703-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - ABORT TRANSACTION
	AX = C703h
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AL = error code (FDh-FFh) (see #0987)
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AX=C700h"NetWare",AX=C701h,AX=C704h
--------N-21C704-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - TRANSACTION STATUS
	AX = C704h
	CX:DX = transaction number (see AX=C701h)
Return: AL = status
	    00h successful
	    FFh not yet written to disk
Desc:	verify that a transaction has actually been written to disk
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
	transactions are written to disk in the order in which they are ended,
	  but it may take as much as five seconds for the data to be written
SeeAlso: AX=C700h"NetWare",AX=C701h,AX=C703h
--------N-21C705-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - GET APPLICTN THRESHOLDS
	AX = C705h
Return: AL = status
	    00h successful
	CL = maximum logical record locks (default 0)
	CH = maximum physical record locks (default 0)
Desc:	get the per-application limits on record locks allowed before an
	  implicit transaction is begun
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
	if either limit is FFh, implicit transactions are disabled for the
	  corresponding lock type
SeeAlso: AX=C706h,AX=C707h
--------N-21C706-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - SET APPLICTN THRESHOLDS
	AX = C706h
	CL = maximum logical record locks (default 0)
	CH = maximum physical record locks (default 0)
Return: AL = status
	    00h successful
Desc:	specify the per-application limits on record locks allowed before an
	  implicit transaction is begun
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
	if either limit is set to FFh, implicit transactions are disabled for
	  the corresponding lock type
SeeAlso: AX=C705h,AX=C708h
--------N-21C707-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - GET WORKSTN THRESHOLDS
	AX = C707h
Return: AL = status
	    00h successful
	CL = maximum logical record locks (default 0)
	CH = maximum physical record locks (default 0)
Desc:	get the per-workstation limits on record locks allowed before an
	  implicit transaction is begun
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
	if either limit is FFh, implicit transactions are disabled for the
	  corresponding lock type
SeeAlso: AX=C705h,AX=C708h
--------N-21C708-----------------------------
INT 21 - Novell NetWare - TRANSACTION TRACKING SYSTEM - SET WORKSTN THRESHOLDS
	AX = C708h
	CL = maximum logical record locks (default 0)
	CH = maximum physical record locks (default 0)
Return: AL = status
	    00h successful
Desc:	specify the per-workstation limits on record locks allowed before an
	  implicit transaction is begun
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
	if either limit is set to FFh, implicit transactions are disabled for
	  the corresponding lock type
SeeAlso: AX=C706h,AX=C707h
--------N-21C8-------------------------------
INT 21 O - Novell NetWare - BEGIN LOGICAL FILE LOCKING
	AH = C8h
	if function C6h lock mode 00h:
	    DL = mode
		00h no wait
		01h wait
	if function C6h lock mode 01h:
	    BP = timeout in timer ticks (1/18 sec)
Return: AL = error code
Desc:	used to provide TTS support for applications which are not aware of
	  Novell's Transaction Tracking System
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=C9h
--------N-21C9-------------------------------
INT 21 O - Novell NetWare - END LOGICAL FILE LOCKING
	AH = C9h
Return: AL = error code
Desc:	used to provide TTS support for applications which are not aware of
	  Novell's Transaction Tracking System
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=C8h
--------N-21CA-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - LOG/LOCK PERSONAL FILE (FCB)
	AH = CAh
	DS:DX -> FCB (see #0574 at AH=0Fh)
	if function C6h lock mode 01h:
	    AL = log and lock flag
		00h log file only
		01h lock as well as log file
	    BP = lock timeout in timer ticks (1/18 sec)
Return: AL = error code
	    00h successful
	    96h no dynamic memory for file
	    FEh timeout
	    FFh failed
Desc:	provides file locking support for FCBs
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=CBh
--------v-21CA15-----------------------------
INT 21 - VIRUS - "Piter" - ???
	AX = CA15h
	???
Return: ???
SeeAlso: AH=CCh"VIRUS"
--------N-21CB-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOCK FILE SET
	AH = CBh
	if function C6h lock mode 00h:
	    DL = mode (00h no wait, 01h wait)
	if function C6h lock mode 01h:
	    BP = lock timeout in timer ticks (1/18 sec), 0000h = no wait
Return: AL = status (00h,FEh,FFh) (see #0988)
Desc:	attempt to lock all files listed in the log table
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	status FFh will be returned if one or more of the files have already
	  been exclusively locked by another process
SeeAlso: AH=CAh,AH=CDh,AH=D1h,AH=EBh

(Table 0988)
Values for NetWare status:
 00h	successful
 FEh	timed out
 FFh	failed
--------v-21CB-------------------------------
INT 21 - VIRUS - "Milous" - INSTALLATION CHECK
	AH = CBh
Return: AL = 07h if resident
SeeAlso: AX=C700h"VIRUS",AX=CB02h
--------v-21CB02-----------------------------
INT 21 - VIRUS - "Witcode" - INSTALLATION CHECK
	AX = CB02h
Return: AX = 02CBh if resident
SeeAlso: AH=CBh"VIRUS",AH=CCh"VIRUS"
--------N-21CC-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - RELEASE FILE (FCB)
	AH = CCh
	DS:DX -> FCB (see #0574 at AH=0Fh)
Return: none
Desc:	unlocks file, but does not remove it from the log table or close it
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=CAh,AH=CDh
--------v-21CC-------------------------------
INT 21 - VIRUS - "Westwood" - INSTALLATION CHECK
	AH = CCh
Return: AX = 0700h if resident
SeeAlso: AX=CB02h,AH=CDh"VIRUS",AX=D000h"VIRUS"
--------N-21CD-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE FILE SET
	AH = CDh
Return: none
Desc:	unlock all files listed in the log table, but don't remove them from
	  the table
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=CBh,AH=CCh,AH=CFh,AH=D3h
--------v-21CD-------------------------------
INT 21 - VIRUS - "Westwood" - ???
	AH = CDh
	???
Return: ???
SeeAlso: AH=CCh"VIRUS"
--------N-21CE-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - CLEAR FILE (FCB)
	AH = CEh
	DS:DX -> FCB (see #0574 at AH=0Fh)
Return: AL = error code
Desc:	unlocks file and removes it from log table, then closes all opened and
	  logged occurrences
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AH=CAh,AH=CFh,AH=EDh"NetWare"
--------N-21CF-------------------------------
INT 21 - LANstep - ???
	AH = CFh
	???
Return: ???
Program: LANstep is a redesign of the Waterloo Microsystems PORT network
--------N-21CF-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR FILE SET
	AH = CFh
Return: AL = 00h
Desc:	unlock and remove all files from log table
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=CAh,AH=CEh,AH=EBh"NetWare"
--------N-21D0-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOG LOGICAL RECORD
	AH = D0h
	DS:DX -> record string (counted string, max 99 data bytes)
	if function C6h lock mode 01h: (Novell, NTNX only)
	    AL = flags
		bit 0: lock as well as log the record
		bit 1: non-exclusive lock
	    BP = lock timeout in timer ticks (1/18 sec)
Return: AL = status
	    00h successful
	    96h no dynamic memory for file
	    FEh timed out
	    FFh unsuccessful
Desc:	add the specified logical record name to the log table, and optionally
	  lock the record
Notes:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+,
	  Banyan VINES, and Alloy NTNX
	locks on logical record names are advisory and may be ignored by other
	  applications
SeeAlso: AH=BCh,AH=D1h,AH=D2h,AH=D4h,AH=EBh
--------v-21D000-----------------------------
INT 21 - VIRUS - "Fellowship" - INSTALLATION CHECK
	AX = D000h
Return: BX = 1234h if resident
SeeAlso: AH=CCh"VIRUS",AH=D5h"VIRUS",AX=D5AAh
--------N-21D1-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOCK LOGICAL RECORD SET
	AH = D1h
	AL = lock type (00h exclusive, 01h shareable)
	if function C6h lock mode 00h:
	    DL = mode (00h no wait, 01h wait)
	if function C6h lock mode 01h: (Novell only)
	    BP = lock timeout in timer ticks (1/18 sec), 0000h no wait
Return: AL = status (see #0988)
Desc:	attempt to lock all logical record names listed in the log table
Notes:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+,
	  Banyan VINES, and Alloy NTNX
	status FFh will be returned if one or more logical records have been
	  exclusively locked by another process
	locks on logical record names are advisory and may be ignored by other
	  applications
SeeAlso: AH=C2h,AH=CBh,AH=D0h,AH=D3h,AH=D5h
--------N-21D2-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE LOGICAL RECORD
	AH = D2h
	DS:DX -> semaphore identifier (counted string up to 99 chars long)
Return: AL = status
	    00h successful
	    FFh no such record
Desc:	unlock the logical record name but do not remove it from the log table
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
	  Banyan VINES, and Alloy NTNX
	locks on logical record names are advisory and may be ignored by other
	  applications
SeeAlso: AH=BDh,AH=D0h,AH=D3h,AH=D4h
--------v-21D2-------------------------------
INT 21 - VIRUS???
	AH = D2h
	???
Return: ???
Note:	this call is intercepted by the Search&Destroy SDRes v27.03 bundled
	  with Novell DOS 7, and is presumably some virus's installation check
SeeAlso: AH=4Ah/BX=00B6h
--------N-21D3-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE LOGICAL RECORD SET
	AH = D3h
Desc:	unlock all currently-locked logical record names in the log table, but
	  do not remove them from the table
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
	  Banyan VINES, and Alloy NTNX
	locks on logical record names are advisory and may be ignored by other
	  applications
SeeAlso: AH=C3h,AH=CDh,AH=D1h,AH=D2h,AH=D5h
--------N-21D4-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR LOGICAL RECORD
	AH = D4h
	DS:DX -> logical record name (counted string up to 99 chars long)
Return: AL = status (00h,FFh) (see #0989)
Desc:	unlock and remove the logical record name from the log table
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
	  Banyan VINES, and Alloy NTNX
	locks on logical record names are advisory and may be ignored by other
	  applications
SeeAlso: AH=BEh,AH=D0h,AH=D2h,AH=D5h

(Table 0989)
Values for NetWare status:
 00h	successful
 FFh	no such record name
--------N-21D5-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR LOGICAL RECORD SET
	AH = D5h
Return: AL = error code (00h,FFh) (see #0989)
Desc:	unlock and remove all logical record name from the log table
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
	  Banyan VINES, and Alloy NTNX
	locks on logical record names are advisory and may be ignored by other
	  applications
SeeAlso: AH=D1h,AH=D3h,AH=D4h
--------v-21D5-------------------------------
INT 21 - VIRUS - "Carfield" - ???
	AH = D5h
	???
Return: ???
SeeAlso: AX=D5AAh,AH=F3h"Carfield"
--------v-21D5AA-----------------------------
INT 21 - VIRUS - "Diamond-A", "Diamond-B" - INSTALLATION CHECK
	AX = D5AAh
Return: AX = 2A55h if "Diamond-A" resident
	AX = 2A03h if "Diamond-B"-family virus resident
SeeAlso: AX=D000h,AH=D5h"VIRUS",AX=D5AAh/BP=DEAAh
--------v-21D5AABPDEAA-----------------------
INT 21 - VIRUS - "Dir" - INSTALLATION CHECK
	AX = D5AAh
	BP = DEAAh
Return: SI = 4321h if resident
SeeAlso: AX=D5AAh,AX=DADAh"VIRUS"
--------N-21D6-------------------------------
INT 21 - Novell NetWare - WORKSTATION - END OF JOB
	AH = D6h
	BX = job flag (0000h current job, FFFFh all processes on workstation)
Return: AL = error code
Desc:	unlocks and clears all locked or logged files and records held by the
	  process(es), closes all files, resets error and lock modes, and
	  releases all network resources
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=BBh,AH=D7h
--------N-21D7-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - SYSTEM LOGOUT
	AH = D7h
Return: AL = error code
Desc:	this function closes the caller's open files, logs it out from all
	  file servers, detaches the workstation from all non-default file
	  servers, and maps a drive to the default server's SYS:LOGIN directory
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=D6h,AH=E3h/SF=14h,AH=F1h
--------N-21D8-------------------------------
INT 21 - Novell NetWare, Banyan VINES - ALLOCATE RESOURCE
	AH = D8h
	DL = resource number
Return: AL = status (00h successful, FFh unsucessful)
Note:	this function is no longer used or supported by NetWare, and is not
	  documented in Novell documents
SeeAlso: AH=D9h
--------N-21D9-------------------------------
INT 21 - Novell NetWare, Banyan VINES - DEALLOCATE RESOURCE
	AH = D9h
	DL = resource number
Return: AL = status (00h successful, FFh unsucessful)
Note:	this function is no longer used or supported by NetWare, and is not
	  documented in Novell documents
SeeAlso: AH=D8h
--------N-21DA-------------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME INFO WITH NUMBER
	AH = DAh
	DL = volume number
	ES:DI -> reply buffer (see #0990)
Return: AL = 00h
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
	operator console rights are not required to make this call
	reported total blocks and total unused blocks include the Hot Fix
	  Table; the NetWare shell's implementation of INT 21/AH=36h will
	  report values larger than 268MB as 268MB.
SeeAlso: AH=36h,AH=E2h/SF=15h,AH=E3h/SF=E9h

Format of NetWare reply buffer:
Offset	Size	Description	(Table 0990)
 00h	WORD	sectors/block
 02h	WORD	total blocks on volume
 04h	WORD	unused blocks
 06h	WORD	total directory entries
 08h	WORD	unused directory entries
 0Ah 16 BYTEs	volume name, null padded
 1Ah	WORD	removable flag, 0000h = not removable
Note:	all words are big-endian
--------v-21DADA-----------------------------
INT 21 - VIRUS - "Gotcha" - INSTALLATION CHECK
	AX = DADAh
Return: AH = A5h
SeeAlso: AX=D5AAh,AX=DAFEh"VIRUS"
--------v-21DAFE-----------------------------
INT 21 - VIRUS - "Plovdiv 1.3" - INSTALLATION CHECK
	AX = DAFEh
Return: AX = 1234h if resident
SeeAlso: AX=DADAh,AH=DDh"VIRUS",AH=DEh"VIRUS"
--------N-21DB-------------------------------
INT 21 - Novell NetWare - WORKSTATION - GET NUMBER OF LOCAL DRIVES
	AH = DBh
Return: AL = number of local disks as set by LASTDRIVE in CONFIG.SYS
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=0Eh
--------N-21DC-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET CONNECTION NUMBER
	AH = DCh
Return: AL = logical connection number
	    00h if NetWare not loaded or this machine is a non-dedicated server
	CX = station number in ASCII (CL = first digit)
Notes:	this function is supported by NetWare 4.0+, Banyan VINES, and Alloy
	  NTNX
	station number only unique for those PCs connected to same semaphore
	  service
SeeAlso: AH=F2h"NetWare"
--------d-21DC-------------------------------
INT 21 - PCMag PCMANAGE/DCOMPRES - TURN ON/OFF
	AH = DCh
	DX = state
	    0000h turn on
	    0001h turn off
SeeAlso: AX=FEDCh
--------N-21DD-------------------------------
INT 21 - Novell NetWare - WORKSTATION - SET NetWare ERROR MODE
	AH = DDh
	DL = error mode
	    00h invoke INT 24 on critical I/O errors (default)
	    01h return NetWare extended error code in AL
	    02h return error code in AL, mapped to standard DOS error codes
Return: AL = previous error mode
Note:	this function is supported by Advanced NetWare 2.0+
SeeAlso: INT 24
--------v-21DD-------------------------------
INT 21 - VIRUS - "Jerusalem"-family - RELOCATE VIRUS???
	AH = DDh
	CX = number of bytes to copy
	DS:SI -> source of copy
	ES:DI -> destination of copy
Return: does not return normally; return address is caller's CS:0100h with
	  AX = ???
SeeAlso: AH=E0h"VIRUS",AH=EEh"VIRUS"
--------v-21DE-------------------------------
INT 21 - VIRUS - "Durban" - INSTALLATION CHECK
	AH = DEh
Return: AH = DFh if resident
SeeAlso: AX=DAFEh,AX=DEDEh"VIRUS"
--------v-21DE-------------------------------
INT 21 - VIRUS - "April 1st EXE" - ???
	AH = DEh
	???
Return: ???
--------N-21DE-------------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - SET BROADCAST MODE
	AH = DEh
	DL = broadcast mode
	    00h receive server and workstation broadcasts (default)
	    01h receive server broadcasts, discard user messages
	    02h store server broadcasts for retrieval
	    03h store all broadcasts for retrieval
Return: AL = new broadcast mode
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
--------N-21DE--DL04-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - GET BROADCAST MODE
	AH = DEh
	DL = 04h
Return: AL = current broadcast mode
	    00h receive server and workstation broadcasts (default)
	    01h receive server broadcasts, discard user message
	    02h store server broadcasts for retrieval
	    03h store all broadcasts for retrieval
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
--------N-21DE-------------------------------
INT 21 - Novell NetWare - SHELL TIMER INTERRUPT CHECKS
	AH = DEh
	DL = function
	    05h disable shell timer interrupt checks
	    06h enable shell timer interrupt checks
Return: ???
Note:	this function was added in NetWare 4.0, but is not listed in current
	  Novell documentation and is probably no longer supported
--------v-21DEDE-----------------------------
INT 21 - VIRUS - "Brothers" - INSTALLATION CHECK
	AX = DEDEh
Return: AH = 41h if resident
SeeAlso: AH=DEh"VIRUS",AH=E0h"VIRUS"
--------N-21DF--DL00-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - START LPT CAPTURE
	AH = DFh
	DL = 00h
Return: AL = status
	    00h successful
Desc:	this function redirects the default LPT to a capture file on the file
	  server
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
	a print job is queued when the first character of output is captured
SeeAlso: AX=B800h,AX=B804h,AH=DFh/DL=01h,AH=DFh/DL=02h,AH=DFh/DL=03h
SeeAlso: AH=DFh/DL=04h,AX=F003h
--------N-21DF--DL01-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - END LPT CAPTURE
	AH = DFh
	DL = 01h
Return: AL = status
	    00h successful
Desc:	stop redirecting the default LPT, close the capture file, and release
	  the job in the print queue for printing
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
	after this call, the default LPT defaults to local printing
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=02h,AH=DFh/DL=03h,AH=DFh/DL=05h
--------N-21DF--DL02-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - CANCEL LPT CAPTURE
	AH = DFh
	DL = 02h
Return: AL = status
	    00h successful
Desc:	this function ends the capture of the default LPT, removes the job from
	  the print queue, and deletes the capture file unless it is a
	  permanent capture file
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
	after this call, the default LPT defaults to local printing
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=06h
--------N-21DF--DL03-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - FLUSH LPT CAPTURE
	AH = DFh
	DL = 03h
Return: AL = status
	    00h successful
Desc:	this function closes the current capture file for the default LPT
	  and starts printing it if it is not a permanent capture file
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX; under NTNX, it sends a print break (see INT 17/AH=84h)
	if more data is sent to the LPT port after this call, a new capture
	  file will be opeend
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=01h,AH=DFh/DL=02h,AH=DFh/DL=07h
--------N-21DF--DL04-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - START SPECIFIC LPT CAPTURE
	AH = DFh
	DL = 04h
	DH = LPT port (00h-02h)
Return: AL = status
	    00h successful
Desc:	this function redirects the specified LPT to a capture file on the file
	  server
Notes:	this function is supported by Advanced NetWare 2.1+
	a print job is queued when the first character of output is captured
SeeAlso: AX=B800h,AH=DFh/DL=00h,AH=DFh/DL=05h,AH=DFh/DL=06h,AH=DFh/DL=07h
SeeAlso: AX=F003h
--------N-21DF--DL05-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - END SPECIFIC LPT CAPTURE
	AH = DFh
	DL = 05h
	DH = LPT port (00h-02h)
Return: AL = status
	    00h successful
Desc:	stop redirecting the specified LPT, close the capture file, and release
	  the job in the print queue for printing
Notes:	this function is supported by Advanced NetWare 2.1+
	after this call, the specified LPT defaults to local printing
SeeAlso: AH=DFh/DL=01h,AH=DFh/DL=04h,AH=DFh/DL=06h,AH=DFh/DL=07h
--------N-21DF--DL06-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - CANCEL SPECIFIC LPT CAPTURE
	AH = DFh
	DL = 06h
	DH = LPT port (00h-02h)
Return: AL = status
	    00h successful
Desc:	this function ends the capture of the specified LPT, removes the job
	  from the print queue, and deletes the capture file unless it is a
	  permanent capture file
Notes:	this function is supported by Advanced NetWare 2.1+
	after this call, the specified LPT defaults to local printing
SeeAlso: AH=DFh/DL=02h,AH=DFh/DL=04h,AH=DFh/DL=05h,AH=DFh/DL=07h
--------N-21DF--DL07-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - FLUSH SPECIFIC LPT CAPTURE
	AH = DFh
	DL = 07h
	DH = LPT port (00h-02h)
Return: AL = status
	    00h successful
Desc:	this function closes the current capture file for the specified LPT
	  and starts printing it if it is not a permanent capture file
Notes:	this function is supported by Advanced NetWare 2.1+
	if more data is sent to the LPT port after this call, a new capture
	  file will be opeend
SeeAlso: AH=DFh/DL=03h,AH=DFh/DL=04h,AH=DFh/DL=05h,AH=DFh/DL=06h
--------T-21DF00DX534C-----------------------
INT 21 U - Software Carousel - INSTALLATION CHECK
	AX = DF00h
	DX = 534Ch ("SL")
	DI = 534Ch ("SL")
Return: AX = 00FFh if installed
	    ???
Program: Software Carousel is a task switcher by SoftLogic Solutions, Inc.
--------T-21DF01-----------------------------
INT 21 - Software Carousel - SWITCH TO ANOTHER TASK
	AX = DF01h
	BL = task number (00h = next task)
Return: AL = status
	    00h Carousel not running
	    01h successful
	    FFh unsucessful
		AH = error code (01h,02h) (see #0991)

(Table 0991)
Values for Software Carousel error code:
 00h	invalid subfunction in AL
 01h	invalid task number
 02h	tried to switch to task with no memory size
 03h	tried to kill program in partition with no program running
 04h	tried to change size of an active memory partition
 05h	invalid memory size
 06h	tried to send command to task with a pending previous command
--------T-21DF02-----------------------------
INT 21 - Software Carousel - KILL PROGRAM IN MEMORY PARTITION
	AX = DF02h
	BL = task number
Return: AL = status
	    00h Carousel not running
	    01h successful
	    FFh unsucessful
		AH = error code (01h,03h) (see #0991)
--------T-21DF03-----------------------------
INT 21 - Software Carousel - GET PARTITION SIZE AND PROGRAM STATUS
	AX = DF03h
	BL = task number
Return: AL = status
	    00h Carousel not running
	    01h successful
		BL = partition state (00h no program running, 01h prog running)
		DX = partition size in KB
		 FFh unsucessful
		AH = error code (01h) (see #0991)
SeeAlso: AX=DF05h
--------T-21DF04-----------------------------
INT 21 - Software Carousel - GET PARTITION NAME
	AX = DF04h
	BL = task number
Return: AL = status
	    00h Carousel not running
	    01h successful
		CX = length of name (00h if default partition name)
		ES:BX -> partition name (if CX nonzero)
	    FFh unsucessful
		AH = error code (01h) (see #0991)
SeeAlso: AX=DF06h
--------T-21DF05-----------------------------
INT 21 - Software Carousel - CHANGE PARTITION SIZE
	AX = DF05h
	BL = task number
	DX = new size in KB
Return: AL = status
	    00h Carousel not running
	    01h successful
		 FFh unsucessful
		AH = error code (01h,04h,05h) (see #0991)
	BX = minimum size allowed
	CX = maximum size available
SeeAlso: AX=DF03h
--------T-21DF06-----------------------------
INT 21 - Software Carousel - CHANGE PARTITION NAME
	AX = DF06h
	BL = task number
	CX = length of new name (00h to use default, max 18h)
	DS:SI -> new name
Return: AL = status
	    00h Carousel not running
	    01h successful
	    FFh unsucessful
		AH = error code (01h) (see #0991)
SeeAlso: AX=DF04h
--------T-21DF07-----------------------------
INT 21 - Software Carousel - SEND COMMAND TO MEMORY SECTION
	AX = DF07h
	BL = task number
	CX = length of command (max 8 chars)
	DS:SI -> command line
Return: AL = status
	    00h Carousel not running
	    01h successful
	    FFh unsucessful
		AH = error code (01h,06h) (see #0991)
Note:	the maximum length seems too small and may be a typo for 80 characters
--------T-21DF08-----------------------------
INT 21 - Software Carousel - SELECTIVELY ENABLE/DISABLE MENU AND SWITCHING
	AX = DF08h
	BL = new state of keyboard (00h disabled, 01h enabled)
Return: AL = status
	    00h Carousel not running
	    01h successful
Program: Software Carousel is a task switcher by SoftLogic Solutions, Inc.
Note:	when the keyboard is is disabled, the user may neither access the
	  Carousel menu nor switch to another memory section
--------T-21DF09-----------------------------
INT 21 - Software Carousel - BOOT THE SYSTEM
	AX = DF09h
Return: AL = status
	    00h Carousel not running
	    FFh unsucessful
		AH = error code (01h,03h) (see #0991)
Note:	this function never returns if successful
--------T-21DF0A-----------------------------
INT 21 - Software Carousel - GET MEMORY SIZE/PARTITION NUMBER OF CURRENT TASK
	AX = DF0Ah
Return: AL = status
	    00h Carousel not running
	    01h successful
		BL = task number
		DX = memory size in KB
	    FFh unsucessful
		AH = error code (01h,03h) (see #0991)
--------T-21DF0B-----------------------------
INT 21 - Software Carousel - SET TASK SWITCH CALLBACK
	AX = DF0Bh
	BH = interrupt number or 00h
	BL = function number to invoke on partition switch
	CL = function number to call when it is safe for resident programs
		to perform DOS calls
	DS:DX -> FAR function to call if BH=00h
Return: AL = status
	    00h Carousel not running
	    01h successful
	    FFh unsucessful
		AH = error code (01h,03h) (see #0991)
Notes:	the specified interrupt or FAR function is called with AH set to the
	  appropriate one of the values specified in BL and CL, and BL set to
	  the new task number
	the function specified by CL will not be called until the notification
	  is enabled with AX=DF0Ch
SeeAlso: AX=DF0Ch
--------T-21DF0C-----------------------------
INT 21 - Software Carousel - ENABLE DOS-CALL SAFETY NOTIFICATION
	AX = DF0Ch
Return: AL = status
	    00h Carousel not running
	    01h successful
Program: Software Carousel is a task switcher by SoftLogic Solutions, Inc.
SeeAlso: AX=DF0Bh
--------O-21E0-------------------------------
INT 21 - Digital Research DOS Plus - CALL BDOS
	AH = E0h
	CL = BDOS function number (see #2602 at INT E0"CP/M")
	other registers as appropriate for function
Return: as appropriate for function
SeeAlso: AX=4459h,INT E0"CP/M"
--------E-21E0-------------------------------
INT 21 - OS/286, OS/386 - INITIALIZE REAL PROCEDURE
	AH = E0h
	???
Return: ???
SeeAlso: AH=E1h"OS/286"
--------T-21E0-------------------------------
INT 21 - DoubleDOS - MENU CONTROL
	AH = E0h
	AL = subfunction
	    01h exchange tasks
	    73h resume invisible job if suspended
	    74h kill other job
	    75h suspend invisible job
Note:	identical to AH=F0h
SeeAlso: AH=F0h"DoubleDOS"
--------v-21E0-------------------------------
INT 21 - VIRUS - "Jerusalem", "Armagedon" - INSTALLATION CHECK
	AH = E0h
Return: AX = 0300h if "Jerusalem" resident
	AX = DADAh if "Armagedon" resident
SeeAlso: AH=DEh"VIRUS",AX=DEDEh"VIRUS",AX=E00Fh
--------N-21E0-------------------------------
INT 21 - Novell NetWare, Alloy NTNX - PRINT SPOOLING
	AH = E0h
	DS:SI -> request buffer (see #0992)
	ES:DI -> reply buffer
Return: AL = status
Note:	this function was added in NetWare 4.0, but is no longer listed in
	  current Novell documentation and may no longer be supported
SeeAlso: AH-E3h/SF=68h

Format of NetWare request buffer:
Offset	Size	Description	(Table 0992)
 00h	WORD	length of following data
 02h	BYTE	subfunction
		00h spool data to a capture file
		01h close and queue capture file
		02h set spool flags
		03h spool existing file
		04h get spool queue entry
		05h remove entry from spool queue
 03h	???
--------N-21E0--SF06-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET PRINTER STATUS
	AH = E0h subfn 06h
	DS:SI -> request buffer (see #0993)
	ES:DI -> reply buffer (see #0994)
Return: AL = status
	    00h successful
	    FFh no such printer
Desc:	get current state of specified printer attached to the server
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX

Format of NetWare "Get Printer Status" request buffer:
Offset	Size	Description	(Table 0993)
 00h	WORD	0002h (length of following data)
 02h	BYTE	06h (subfunction "Get Printer Status")
 03h	BYTE	printer number (00h-04h)
SeeAlso: #0994

Format of NetWare "Get Printer Status" reply buffer:
Offset	Size	Description	(Table 0994)
 00h	WORD	(call) 0004h (size of following results buffer)
 02h	BYTE	flag: 00h printer active, FFh printer halted
 03h	BYTE	flag: 00h printer online, 01h printer offline
 04h	BYTE	current form type
 05h	BYTE	target printer number (00h-04h)
		same as number in request buffer unless rerouted by server
		  console
SeeAlso: #0993
--------N-21E0--SF09-------------------------
INT 21 - Novell NetWare - PRINT SERVICES - SPECIFY CAPTURE FILE
	AH = E0h subfn 09h
	DS:SI -> request buffer (see #0995)
	ES:DI -> reply buffer (see #0996)
Return: AL = status
	    00h successful
	    9Ch invalid path
Desc:	create a permanent capture file for the next print capture to be
	  started
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	the caller must have read, write, and create rights for the directory
	  containing the capture file

Format of NetWare "Specify Capture File" request buffer:
Offset	Size	Description	(Table 0995)
 00h	WORD	length of following data (max 102h)
 02h	BYTE	09h (subfunction "Specify Capture File")
 03h	BYTE	directory handle or 00h
 04h	BYTE	length of filename
 05h  N BYTEs	name of capture file
SeeAlso: #0996

Format of NetWare reply buffer:
Offset	Size	Description	(Table 0996)
 00h	WORD	(call) 0000h (no results returned)
SeeAlso: #0995
--------v-21E00F-----------------------------
INT 21 - VIRUS - "8-tunes" - INSTALLATION CHECK
	AX = E00Fh
Return: AX = 4C31h if resident
SeeAlso: AH=E0h"VIRUS",AH=E1h"VIRUS"
--------E-21E1-------------------------------
INT 21 - OS/286, OS/386 - ISSUE REAL PROCEDURE CALL
	AH = E1h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AH=E0h"OS/286",AH=E2h"OS/286",AH=E3h"OS/286",AX=250Eh,INT 31/AX=0301h
--------T-21E1-------------------------------
INT 21 - DoubleDOS - CLEAR KEYBOARD BUFFER FOR CURRENT JOB
	AH = E1h
SeeAlso: AH=E2h"DoubleDOS",AH=E3h"DoubleDOS",AH=E8h"DoubleDOS"
SeeAlso: AH=F1h"DoubleDOS"
--------v-21E1-------------------------------
INT 21 - VIRUS - "Mendoza", "Fu Manchu" - INSTALLATION CHECK
	AH = E1h
Return: AX = 0300h if "Mendoza" resident
	AX = 0400h if "Fu Manchu" resident
SeeAlso: AX=E00Fh,AH=E4h"VIRUS"
--------N-21E1--SF00-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - SEND BROADCAST MESSAGE
	AH = E1h subfn 00h
	DS:SI -> request buffer (see #0997)
	ES:DI -> reply buffer (see #0998)
Return: AL = status
	    00h successful
	    FEh I/O error or out of dynamic workspace
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=DEh"NetWare",AH=DEh/DL=04h,AH=E1h/SF=01h,AH=E1h/SF=04h
SeeAlso: AH=E1h/SF=09h

Format of NetWare "Send Broadcast Message" request buffer:
Offset	Size	Description	(Table 0997)
 00h	WORD	length of following data (max 9Eh)
 02h	BYTE	00h (subfunction "Send Broadcast Message")
 03h	BYTE	number of connections (01h-64h)
 04h  N BYTEs	list of connections to receive broadcast message
	BYTE	length of message (01h-37h)
      N BYTEs	broadcast message (no control characters or characters > 7Eh)
SeeAlso: #0998

Format of NetWare "Send Broadcast Message" reply buffer:
Offset	Size	Description	(Table 0998)
 00h	WORD	(call) size of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	list of per-connection results
		00h successful
		FCh message rejected due to lack of buffer space
		FDh invalid connection number
		FFh blocked (see also AH=E1h/SF=02h)
SeeAlso: #0997
--------N-21E1--SF01-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - GET BROADCAST MESSAGE
	AH = E1h subfn 01h
	DS:SI -> request buffer (see #0999)
	ES:DI -> reply buffer (see #1000)
Return: AL = status
	    00h successful
		 FCh full message queue
	    FEh out of dynamic workspace
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=DEh/DL=04h,AH=E1h/SF=00h,AH=E1h/SF=05h,AH=E1h/SF=09h

Format of NetWare "Get Broadcast Message" request buffer:
Offset	Size	Description	(Table 0999)
 00h	WORD	0001h (length of following data)
 02h	BYTE	01h (subfunction "Get Broadcast Message")
SeeAlso: #1000

Format of NetWare "Get Broadcast Message" reply buffer:
Offset	Size	Description	(Table 1000)
 00h	WORD	(call) size of following results buffer (max 38h)
 02h	BYTE	length of message (00h-37h)
		00h if no broadcast messages pending
 03h  N BYTEs	message (no control characters or characters > 7Eh)
SeeAlso: #0999
--------N-21E1-------------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - ENABLE/DISABLE BROADCAST MESSAGES
	AH = E1h
	DS:SI -> request buffer (see #1001)
	ES:DI -> reply buffer (see #1002)
Return: AL = error code
Note:	these functions are supported by NetWare 4.0+ but are not listed in
	  _NetWare_System_Calls--DOS_; they may be obsolete
SeeAlso: AH=E1h/SF=00h,AH=E1h/SF=04h,AH=E1h/SF=09h

Format of NetWare "Enable/Disable Broadcast Messages" request buffer:
Offset	Size	Description	(Table 1001)
 00h	WORD	length of following data (max 9Eh)
 02h	BYTE	subfunction
		02h disable station broadcasts
		03h enable station broadcasts
 03h	???
SeeAlso: #1002

Format of NetWare "Enable/Disable Broadcast Messages" reply buffer:
Offset	Size	Description	(Table 1002)
 00h	WORD	(call) size of following results buffer
 02h	???
SeeAlso: #1001
--------N-21E1--SF04-------------------------
INT 21 O - Novell NetWare - MESSAGE SERVICES - SEND PERSONAL MESSAGE
	AH = E1h subfn 04h
	DS:SI -> request buffer (see #1003)
	ES:DI -> reply buffer (see #1004)
Return: AL = status
	    00h successful
	    FEh I/O error or out of dynamic workspace
Notes:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0-2.x
	message pipes use CPU time on the file server; IPX, SPX, or NetBIOS
	  connections should be used for peer-to-peer communications as these
	  protocols do not use file server time
SeeAlso: AH=E1h/SF=00h,AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of NetWare "Send Personal Message" request buffer:
Offset	Size	Description	(Table 1003)
 00h	WORD	length of following data (max E5h)
 02h	BYTE	04h (subfunction "Send Personal Message")
 03h	BYTE	number of connections (01h-64h)
 04h  N BYTEs	list of connections to receive broadcast message
	BYTE	length of message (01h-7Eh)
      N BYTEs	message (no control characters or characters > 7Eh)
SeeAlso: #1004

Format of NetWare "Send Personal Message" reply buffer:
Offset	Size	Description	(Table 1004)
 00h	WORD	(call) size of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	list of per-connection results
		00h successful
		FCh message rejected because queue is full (contains 6 msgs)
		FDh incomplete pipe
		FFh failed
SeeAlso: #1003
--------N-21E1--SF05-------------------------
INT 21 O - Novell NetWare - MESSAGE SERVICES - GET PERSONAL MESSAGE
	AH = E1h subfn 05h
	DS:SI -> request buffer (see #1005)
	ES:DI -> reply buffer (see #1006)
Return: AL = status
	    00h successful
	    FEh out of dynamic workspace
Desc:	return the oldest message in the default file server's message queue
	  for the calling workstation
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0-2.x
SeeAlso: AH=E1h/SF=01h,AH=E1h/SF=04h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of NetWare "Get Personal Message" request buffer:
Offset	Size	Description	(Table 1005)
 00h	WORD	0001h (length of following data)
 02h	BYTE	05h (subfunction "Get Personal Message")
SeeAlso: #1006

Format of NetWare "Get Personal Message" reply buffer:
Offset	Size	Description	(Table 1006)
 00h	WORD	(call) size of following results buffer (max 80h)
 02h	BYTE	connection number of sending station
 03h	BYTE	length of message (00h-7Eh)
		00h if no personal messages pending
 04h  N BYTEs	message (no control characters or characters > 7Eh)
SeeAlso: #1005
--------N-21E1--SF06-------------------------
INT 21 O - Novell NetWare - MESSAGE SERVICES - OPEN MESSAGE PIPE
	AH = E1h subfn 06h
	DS:SI -> request buffer (see #1007)
	ES:DI -> reply buffer (see #1008)
Return: AL = status
	    00h successful
	    FEh out of dynamic workspace
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0-2.x
SeeAlso: AH=E1h/SF=04h,AH=E1h/SF=07h,AH=E1h/SF=08h

Format of NetWare "Open Message Pipe" request buffer:
Offset	Size	Description	(Table 1007)
 00h	WORD	length of following data (max 66h)
 02h	BYTE	06h (subfunction "Open Message Pipe")
 03h	BYTE	number of pipes to open (01h-64h)
 04h  N BYTEs	list of connection numbers
SeeAlso: #1008,#1009,#1012

Format of NetWare "Open Message Pipe" reply buffer:
Offset	Size	Description	(Table 1008)
 00h	WORD	(call) size of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	list of results
		00h successful
		FEh incomplete (target half not yet created)
		FFh failed
SeeAlso: #1007,#1010,#1013
--------N-21E1--SF07-------------------------
INT 21 O - Novell NetWare - MESSAGE SERVICES - CLOSE MESSAGE PIPE
	AH = E1h subfn 07h
	DS:SI -> request buffer (see #1009)
	ES:DI -> reply buffer (see #1010)
Return: AL = status
	    00h successful
		 FCh full message queue
	    FEh out of dynamic workspace
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0-2.x
SeeAlso: AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=08h

Format of NetWare "Close Mesage Pipe" request buffer:
Offset	Size	Description	(Table 1009)
 00h	WORD	length of following data (max 66h)
 02h	BYTE	07h (subfunction "Close Message Pipe")
 03h	BYTE	number of pipes to close (01h-64h)
 04h  N BYTEs	list of connection numbers
SeeAlso: #1007,#1010

Format of NetWare "Close Message Pipe" reply buffer:
Offset	Size	Description	(Table 1010)
 00h	WORD	(call) size of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	list of results
		00h successful
		FDh failed
		FFh no such pipe
SeeAlso: #1008,#1009
--------N-21E1--SF08-------------------------
INT 21 O - Novell NetWare - MESSAGE SERVICES - CHECK PIPE STATUS
	AH = E1h subfn 08h
	DS:SI -> request buffer (see #1012)
	ES:DI -> reply buffer (see #1013)
Return: AL = status (see #1011)
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0-2.x
SeeAlso: AH=E1h/SF=05h,AH=E1h/SF=06h,AH=E1h/SF=07h

(Table 1011)
Values for NetWare function status:
 00h	successful
 FCh	full message queue
 FEh	out of dynamic workspace

Format of NetWare "Check Pipe Status" request buffer:
Offset	Size	Description	(Table 1012)
 00h	WORD	length of following data (max 66h)
 02h	BYTE	08h (subfunction "Check Pipe Status")
 03h	BYTE	number of pipes to monitor (01h-64h)
 04h  N BYTEs	list of connection numbers
SeeAlso: #1007,#1013

Format of NetWare "Check Pipe Status" reply buffer:
Offset	Size	Description	(Table 1013)
 00h	WORD	(call) size of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	list of pipe statuses
		00h open
		FEh incomplete
		FFh closed
SeeAlso: #1008,#1012
--------N-21E1--SF09-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - BROADCAST TO CONSOLE
	AH = E1h subfn 09h
	DS:SI -> request buffer (see #1014)
	ES:DI -> reply buffer (see #1015)
Return: AL = status (see #1011)
Desc:	send a one-line message to the system console on the default file
	  server
Note:	this function is supported by NetWare 4.0+ and Advanced NetWare 1.0+
SeeAlso: AH=DEh/DL=04h,AH=E1h/SF=00h,AH=E1h/SF=01h,AH=E3h/SF=D1h

Format of NetWare "Broadcast to Console" request buffer:
Offset	Size	Description	(Table 1014)
 00h	WORD	length of following data (max 3Eh)
 02h	BYTE	09h (subfunction "Broadcast to Console")
 03h	BYTE	length of message (01h-3Ch)
 04h  N BYTEs	message (no control characters or characters > 7Eh)
SeeAlso: #1015

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1015)
 00h	WORD	(call) 0000h (no results returned)
SeeAlso: #1014
--------E-21E2-------------------------------
INT 21 - OS/286, OS/386 - SET REAL PROCEDURE SIGNAL HANDLER
	AH = E2h
	???
Return: ???
SeeAlso: AH=E0h"OS/286",AH=E1h"OS/286",AH=E6h"OS/286"
--------N-21E2-------------------------------
INT 21 - DoubleDOS - SEND CHARACTER TO KEYBOARD BUFFER OF OTHER JOB
	AH = E2h
	AL = character
Return: AL = 00h successful
	     01h buffer full (128 characters)
SeeAlso: AH=E1h"DoubleDOS",AH=E3h"DoubleDOS",AH=E8h"DoubleDOS"
SeeAlso: AH=F2h"DoubleDOS"
--------N-21E2--SF00-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SET DIRECTORY HANDLE
	AH = E2h subfn 00h
	DS:SI -> request buffer (see #1017)
	ES:DI -> reply buffer (see #1018)
Return: AL = status (00h,98h,9Bh,9Ch) (see #1016)
Desc:	set the target handle to reference the directory specified by the
	  source handle and the source path; both handles must refer to the
	  same file server
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	the target handle is not changed if this function fails
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=12h,AH=E2h/SF=13h

(Table 1016)
Values for NetWare function status:
 00h	successful
 84h	not permitted to create
 8Ah	not permitted to delete
 8Bh	not permitted to rename
 8Ch	not permitted to modify
 98h	nonexistent volume
 9Bh	invalid directory handle
 9Ch	invalid path
 9Eh	invalid filename
 9Fh	directory currently in use
 A0h	directory not empty
 C6h	no console rights
 FCh	no such bindery object

Format of NetWare "Set Directory Handle" request buffer:
Offset	Size	Description	(Table 1017)
 00h	WORD	length of following data (max 103h)
 02h	BYTE	00h (subfunction "Set Directory Handle")
 03h	BYTE	directory handle of target
 04h	BYTE	directory handle of source
 05h	BYTE	length of source directory path (01h-FFh)
 06h  N BYTEs	source directory path

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1018)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E2--SF01-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET DIRECTORY PATH
	AH = E2h subfn 01h
	DS:SI -> request buffer (see #1019)
	ES:DI -> reply buffer (see #1020)
Return: AL = status (00h,9Bh) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=02h,AH=E2h/SF=03h,AH=E2h/SF=1Ah,AH=E9h

Format of NetWare "Get Directory Path" request buffer:
Offset	Size	Description	(Table 1019)
 00h	WORD	0002h (length of following data)
 02h	BYTE	01h (subfunction "Get Directory Path")
 03h	BYTE	directory handle
SeeAlso: #1020,#1021

Format of NetWare "Get Directory Path" reply buffer:
Offset	Size	Description	(Table 1020)
 00h	WORD	(call) length of following data buffer
 02h	BYTE	length of directory path (01h-FFh)
 03h  N BYTEs	full directory path including volume
SeeAlso: #1019,#1022
--------N-21E2--SF02-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SCAN DIRECTORY INFORMATION
	AH = E2h subfn 02h
	DS:SI -> request buffer (see #1021)
	ES:DI -> reply buffer (see #1022)
Return: AL = status (00h,98h,9Bh,9Ch) (see #1016)
Desc:	get information about the first or next subdirectory of the specified
	  directory
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=03h,AH=E2h/SF=19h

Format of NetWare "Scan Directory Information" request buffer:
Offset	Size	Description	(Table 1021)
 00h	WORD	length of following data (max 104h)
 02h	BYTE	02h (subfunction "Scan Directory Information")
 03h	BYTE	directory handle
 04h	WORD	(big-endian) subdirectory number
		0000h for first call, returned subdir number + 1 on next call
 06h	BYTE	length of directory path
 07h  N BYTEs	directory path
SeeAlso: #1019,#1022

Format of NetWare "Scan Directory Information" reply buffer:
Offset	Size	Description	(Table 1022)
 00h	WORD	(call) 001Ch (length of following data buffer)
 02h 16 BYTEs	subdirectory name
 12h	DWORD	(big-endian) date and time of creation (see #1023)
 16h	DWORD	(big-endian) object ID of owner
 1Ah	BYTE	maximum directory rights (see #1026)
 1Bh	BYTE	unused
 1Ch	WORD	(big-endian) subdirectory number
SeeAlso: #1020,#1021

Bitfields for NetWare date and time:
Bit(s)	Description	(Table 1023)
 31-25	year-1980
 24-21	month
 20-16	day
 15-11	hour
 10-5	minute
 4-0	second
--------N-21E2--SF03-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET EFFECTIVE DIRECTORY RIGHTS
	AH = E2h subfn 03h
	DS:SI -> request buffer (see #1024)
	ES:DI -> reply buffer (see #1025)
Return: AL = status (00h,98h,9Bh) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=02h

Format of NetWare "Get Effective Directory Rights" request buffer:
Offset	Size	Description	(Table 1024)
 00h	WORD	length of following data (max 102h)
 02h	BYTE	03h (subfunction "Get Effective Directory Rights")
 03h	BYTE	directory handle
 04h	BYTE	length of directory path (00h-FFh)
 05h  N BYTEs	directory path
SeeAlso: #1025,#1027

Format of NetWare "Get Effective Directory Rights" reply buffer:
Offset	Size	Description	(Table 1025)
 00h	WORD	(call) 0001h (length of following data buffer)
 02h	BYTE	effective directory rights (see #1026)
SeeAlso: #1024

Bitfields for NetWare directory rights:
Bit(s)	Description	(Table 1026)
 0	reading allowed
 1	writing allowed
 2	opens allowed
 3	file creation allowed
 4	deletion allowed
 5	"parental" may create/delete subdirectories and grant/revoke trustee
	  rights
 6	directory search allowed
 7	file attributes may be changed
SeeAlso: #1025,#1027
--------N-21E2--SF04-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - MODIFY MAXIMUM RIGHTS MASK
	AH = E2h subfn 04h
	DS:SI -> request buffer (see #1027)
	ES:DI -> reply buffer (see #1028)
Return: AL = status (00h,8Ch,98h,9Ch) (see #1016)
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=03h,AH=E2h/SF=0Ah,AH=E2h/SF=0Dh

Format of NetWare "Modify Maximum Rights Mask" request buffer:
Offset	Size	Description	(Table 1027)
 00h	WORD	length of following data (max 104h)
 02h	BYTE	04h (subfunction "Modify Maximum Rights Mask")
 03h	BYTE	directory handle
 04h	BYTE	rights to grant (see #1026)
 05h	BYTE	rights to revoke (see #1026)
 06h	BYTE	length of directory path (00h-FFh)
 07h  N BYTEs	directory path
Note:	the rights specified at offset 05h are revoked first, and then the
	  rights specified at offset 04h are added to the resulting rights
	  mask
SeeAlso: #1024,#1028

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1028)
 00h	WORD	(call) 0000h (no results returned)
SeeAlso: #1027
--------N-21E2--SF05-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME NUMBER
	AH = E2h subfn 05h
	DS:SI -> request buffer (see #1029)
	ES:DI -> reply buffer (see #1030)
Return: AL = status (00h,98h) (see #1016)
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=DAh,AH=E2h/SF=02h,AH=E2h/SF=05h,AH=E2h/SF=15h,AH=E3h/SF=E9h

Format of NetWare "Get Volume Number" request buffer:
Offset	Size	Description	(Table 1029)
 00h	WORD	length of following data (max 12h)
 02h	BYTE	05h (subfunction "Get Volume Number")
 03h	BYTE	length of volume name (01h-10h)
 04h  N BYTEs	volume name
SeeAlso: #1030

Format of NetWare "Get Volume Number" reply buffer:
Offset	Size	Description	(Table 1030)
 00h	WORD	(call) 0001h (length of following results buffer)
 02h	BYTE	volume number
SeeAlso: #1029
--------N-21E2--SF06-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME NAME
	AH = E2h subfn 06h
	DS:SI -> request buffer (see #1031)
	ES:DI -> reply buffer (see #1032)
Return: AL = status (00h,98h) (see #1016)
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=DAh,AH=E2h/SF=02h,AH=E2h/SF=05h,AH=E2h/SF=15h,AH=E2h/SF=1Ah
SeeAlso: AH=E3h/SF=E9h

Format of NetWare "Get Volume Name" request buffer:
Offset	Size	Description	(Table 1031)
 00h	WORD	0002h (length of following data)
 02h	BYTE	06h (subfunction "Get Volume Name")
 03h	BYTE	volume number
SeeAlso: #1032

Format of NetWare "Get Volume Name" reply buffer:
Offset	Size	Description	(Table 1032)
 00h	WORD	(call) 0011h (length of following results buffer)
 02h	BYTE	length of volume name
 03h 16 BYTEs	NUL-padded volume name
SeeAlso: #1031
--------N-21E2--SF0A-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - CREATE DIRECTORY
	AH = E2h subfn 0Ah
	DS:SI -> request buffer (see #1033)
	ES:DI -> reply buffer (see #1034)
Return: AL = status (00h,84h,98h,FCh) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=39h,AH=E2h/SF=0Bh,AH=E2h/SF=0Fh

Format of NetWare "Create Directory" request buffer:
Offset	Size	Description	(Table 1033)
 00h	WORD	length of following data (max 103h)
 02h	BYTE	0Ah (subfunction "Create Directory")
 03h	BYTE	directory handle
 04h	BYTE	maximum directory rights (see #1026)
 05h	BYTE	length of directory path (00h-FFh)
 06h  N BYTEs	directory path
SeeAlso: #1034,#1035

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1034)
 00h	WORD	(call) 0000h (no data returned)
SeeAlso: #1033,#1035
--------N-21E2--SF0B-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - DELETE DIRECTORY
	AH = E2h subfn 0Bh
	DS:SI -> request buffer (see #1035)
	ES:DI -> reply buffer (see #1034)
Return: AL = status (00h,8Ah,98h,9Bh,9Ch,9Fh,A0h) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=3Ah,AH=E2h/SF=0Ah,AH=E2h/SF=0Fh

Format of NetWare "Delete Directory" request buffer:
Offset	Size	Description	(Table 1035)
 00h	WORD	length of following data (max 103h)
 02h	BYTE	0Bh (subfunction "Delete Directory")
 03h	BYTE	directory handle
 04h	BYTE	unused
 05h	BYTE	length of directory path (00h-FFh)
 06h  N BYTEs	directory path
SeeAlso: #1033,#1034
--------N-21E2--SF0C-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SCAN DIRECTORY FOR TRUSTEES
	AH = E2h subfn 0Ch
	DS:SI -> request buffer (see #1036)
	ES:DI -> reply buffer (see #1037)
Return: AL = status (00h,9Ch) (see also #1016)
	    9Ch no more trustees
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=0Dh,AH=E2h/SF=0Eh,AH=E3h/SF=47h

Format of NetWare "Scan Directory For Trustees" request buffer:
Offset	Size	Description	(Table 1036)
 00h	WORD	length of following data (max 103h)
 02h	BYTE	0Ch (subfunction "Scan Directory For Trustees")
 03h	BYTE	directory handle
 04h	BYTE	sequence number
		00h on first call, increment for each subsequent call
 05h	BYTE	length of directory path (00h-FFh)
 06h  N BYTEs	directory path
SeeAlso: #1037,#1038

Format of NetWare "Scan Directory For Trustees" reply buffer:
Offset	Size	Description	(Table 1037)
 00h	WORD	(call) 0031h (length of following results buffer)
 02h 16 BYTEs	directory name
 12h  4 BYTEs	date and time of creation
 16h	DWORD	(big-endian) object ID of owner
 1Ah  5 DWORDs	(big-endian) object IDs of Trustees 0 through 4
		00000000h = end of group
 2Eh  5 BYTEs	directory rights for Trustees 0 through 4 (see #1026)
SeeAlso: #1036,#1040
--------N-21E2--SF0D-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - ADD TRUSTEE TO DIRECTORY
	AH = E2h subfn 0Dh
	DS:SI -> request buffer (see #1038)
	ES:DI -> reply buffer (see #1040)
Return: AL = status (00h,8Ch,FCh) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=0Ch,AH=E2h/SF=0Eh,AH=E3h/SF=47h

Format of NetWare "Add Trustee To Directory" request buffer:
Offset	Size	Description	(Table 1038)
 00h	WORD	length of following data (max 107h)
 02h	BYTE	0Dh (subfunction "Add Trustee To Directory")
 03h	BYTE	directory handle
 04h	DWORD	(big-endian) object ID of trustee
 08h	BYTE	trustee directory rights (see #1026)
 09h	BYTE	length of directory path (00h-FFh)
 0Ah  N BYTEs	directory path
SeeAlso: #1040
--------N-21E2--SF0E-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - DELETE TRUSTEE FROM DIRECTORY
	AH = E2h subfn 0Eh
	DS:SI -> request buffer (see #1039)
	ES:DI -> reply buffer (see #1040)
Return: AL = status (00h,98h,9Bh,9Ch) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=0Ch,AH=E2h/SF=0Dh

Format of NetWare "Delete Trustee From Directory" request buffer:
Offset	Size	Description	(Table 1039)
 00h	WORD	length of following data (max 107h)
 02h	BYTE	0Eh (subfunction "Delete Trustee From Directory")
 03h	BYTE	directory handle
 04h	DWORD	(big-endian) object ID of trustee
 08h	BYTE	unused
 09h	BYTE	length of directory path (00h-FFh)
 0Ah  N BYTEs	directory path
SeeAlso: #1040

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1040)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E2--SF0F-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - RENAME DIRECTORY
	AH = E2h subfn 0Fh
	DS:SI -> request buffer (see #1041)
	ES:DI -> reply buffer (see #1040)
Return: AL = status (00h,8Bh,9Bh,9Ch,9Eh) (see #1016)
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	directories SYS:LOGIN, SYS:MAIL, and SYS:PUBLIC must not be renamed
SeeAlso: AH=56h,AH=E2h/SF=0Ah,AH=E2h/SF=0Bh

Format of NetWare "Rename Directory" request buffer:
Offset	Size	Description	(Table 1041)
 00h	WORD	length of following data (max 111h)
 02h	BYTE	0Fh (subfunction "Rename Directory")
 03h	BYTE	directory handle
 04h	BYTE	length of directory path (00h-FFh)
 05h  N BYTEs	directory path
	BYTE	length of new directory name (01h-0Eh)
      N BYTEs	new directory name
--------N-21E2--SF10-------------------------
INT 21 - Novell NetWare - FILE SERVICES - PURGE ERASED FILES
	AH = E2h subfn 10h
	DS:SI -> request buffer (see #1042)
	ES:DI -> reply buffer (see #1040)
Return: AL = status (00h,C6h) (see #1043)
Desc:	purges files marked for deletion on the file server by the calling
	  workstation
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=13h,AH=41h,AH=E2h/SF=11h,AH=E3h/SF=CEh,AX=F244h

Format of NetWare "Purge Erased Files" request buffer:
Offset	Size	Description	(Table 1042)
 00h	WORD	0001h (length of following data)
 02h	BYTE	10h (subfunction "Purge Erased Files")
--------N-21E2--SF11-------------------------
INT 21 - Novell NetWare - FILE SERVICES - RESTORE ERASED FILE
	AH = E2h subfn 11h
	DS:SI -> request buffer (see #1044)
	ES:DI -> reply buffer (see #1045)
Return: AL = status (00h,98h,FFh) (see #1043)
Desc:	restores one file marked for deletion which has not yet been purged
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=13h,AH=41h,AH=E2h/SF=10h,AH=E3h/SF=CEh,AX=F244h

(Table 1043)
Values for NetWare function status:
 00h	successful
 98h	nonexistent volume
 9Ch	invalid path
 C6h	no console rights
 FFh	no more erased files

Format of NetWare "Restore Erased File" request buffer:
Offset	Size	Description	(Table 1044)
 00h	WORD	length of following data (max 13h)
 02h	BYTE	11h (subfunction "Restore Erased File")
 03h	BYTE	directory handle or 00h
 04h	BYTE	length of volume name
 05h  N BYTEs	volume name (including colon)
Note:	if both a directory handle and a volume name are specified, the volume
	  name overrides the handle
SeeAlso: #1045

Format of NetWare "Restore Erased File" reply buffer:
Offset	Size	Description	(Table 1045)
 00h	WORD	(call) 001Eh (size of following results buffer)
 02h 15 BYTEs	ASCIZ name of erased file
 11h 15 BYTEs	ASCIZ name under which file was restored
SeeAlso: #1044
--------N-21E2--SF12-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - ALLOC PERMANENT DIRECTORY HANDLE
	AH = E2h subfn 12h
	DS:SI -> request buffer (see #1046)
	ES:DI -> reply buffer (see #1047)
Return: AL = status (00h,98h,9Ch) (see #1043)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=00h,AH=E2h/SF=13h,AH=E2h/SF=14h

Format of NetWare "Allocate Permanent Directory Handle" request buffer:
Offset	Size	Description	(Table 1046)
 00h	WORD	length of following data (max 103h)
 02h	BYTE	12h (subfunction "Allocate Permanent Directory Handle")
 03h	BYTE	directory handle
 04h	BYTE	drive ('A'-'Z')
 05h	BYTE	length of directory path
 06h  N BYTEs	directory path
SeeAlso: #1047,#1048

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1047)
 00h	WORD	(call) 0002h (size of following results buffer)
 02h	BYTE	new directory handle
 03h	BYTE	effective directory rights (see #1026)
--------N-21E2--SF13-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - ALLOC TEMPORARY DIRECTORY HANDLE
	AH = E2h subfn 13h
	DS:SI -> request buffer (see #1048)
	ES:DI -> reply buffer (see #1050)
Return: AL = status (00h,98h,9Ch) (see #1043)
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	this call is the same as AH=E2h/SF=12h except that the directory handle
	  will be automatically deallocated when the calling application
	  executes an End of Job call (AH=D6h) or terminates
SeeAlso: AH=D6h,AH=E2h/SF=00h,AH=E2h/SF=12h,AH=E2h/SF=14h,AH=E2h/SF=16h

Format of NetWare "Allocate Temporary Directory Handle" request buffer:
Offset	Size	Description	(Table 1048)
 00h	WORD	length of following data (max 103h)
 02h	BYTE	13h (subfunction "Allocate Temporary Directory Handle")
 03h	BYTE	directory handle
 04h	BYTE	drive ('A'-'Z')
 05h	BYTE	length of directory path
 06h  N BYTEs	directory path
SeeAlso: #1046,#1049
--------N-21E2--SF14-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - DEALLOCATE DIRECTORY HANDLE
	AH = E2h subfn 14h
	DS:SI -> request buffer (see #1049)
	ES:DI -> reply buffer (see #1050)
Return: AL = status (00h,9Bh) (see #1016)
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=12h,AH=E2h/SF=13h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1049)
 00h	WORD	0002h (length of following data)
 02h	BYTE	14h (subfunction "Deallocate Directory Handle")
 03h	BYTE	directory handle

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1050)
 00h	WORD	(call) 0000h (no returned data)
--------N-21E2--SF15-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME INFO WITH HANDLE
	AH = E2h subfn 15h
	DS:SI -> request buffer (see #1051)
	ES:DI -> reply buffer (see #1052)
Return: AL = status
	    00h successful
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=DAh,AH=E2h/SF=02h,AH=E2h/SF=06h,AH=E2h/SF=19h,AH=E3h/SF=E9h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1051)
 00h	WORD	0002h (length of following data)
 02h	BYTE	15h (subfunction "Get Volume Info With Handle")
 03h	BYTE	directory handle

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1052)
 00h	WORD	(call) 001Ch (length of following results buffer)
 02h	WORD	(big-endian) sectors per block
 04h	WORD	(big-endian) total blocks on volume
 06h	WORD	(big-endian) blocks available on volume
 08h	WORD	(big-endian) total directory slots
 0Ah	WORD	(big-endian) directory slots available
 0Ch 16 BYTEs	NUL-padded volume name
 1Ch	WORD	(big-endian) flag: volume removable if nonzero
--------N-21E2--SF16-------------------------
INT 21 u - Novell NetWare - DIRECTORY SERVICES - ALLOC SPECIAL TEMP DIR HANDLE
	AH = E2h subfn 16h
	DS:SI -> request buffer (see #1053)
	ES:DI -> reply buffer
Return: AL = status
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX,
	  but is not described in _NetWare_System_Calls--DOS_
SeeAlso: AH=E2h/SF=13h,AH=E2h/SF=14h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1053)
 00h	WORD	length of following data
 02h	BYTE	16h (subfunction "Allocate Special Temporary Directory Handle")
	???
--------N-21E2--SF17-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SAVE DIRECTORY HANDLE
	AH = E2h subfn 17h
	DS:SI -> request buffer (see #1054)
	ES:DI -> reply buffer (see #1055)
Return: AL = status
	    00h successful
	    else network error code
Note:	this function is supported by Advanced NetWare 2.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=12h,AH=E2h/SF=17h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1054)
 00h	WORD	0002h (length of following data)
 02h	BYTE	18h (subfunction "Restore Directory Handle")
 03h	BYTE	directory handle

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1055)
 00h	WORD	(call) 0010h (length of following results buffer)
 02h 16 BYTEs	save buffer
--------N-21E2--SF18-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - RESTORE DIRECTORY HANDLE
	AH = E2h subfn 18h
	DS:SI -> request buffer (see #1056)
	ES:DI -> reply buffer (see #1057)
Return: AL = status
	    00h successful
	    else network error code
Desc:	restore a previously saved directory handle to reproduce an executing
	  environment, possibly on a different execution site
Note:	this function is supported by Advanced NetWare 2.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=12h,AH=E2h/SF=17h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1056)
 00h	WORD	0011h (length of following data)
 02h	BYTE	18h (subfunction "Restore Directory Handle")
 03h 16 BYTEs	save buffer

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1057)
 00h	WORD	(call) 0002h (length of following results buffer)
 02h	BYTE	new directory handle
 03h	BYTE	effective rights (see #1026)
--------N-21E2--SF19-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SET DIRECTORY INFORMATION
	AH = E2h subfn 19h
	DS:SI -> request buffer (see #1058)
	ES:DI -> reply buffer (see #1059)
Return: AL = status (00h,9Bh,9Ch) (see #1016)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=02h,AH=E2h/SF=0Fh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1058)
 00h	WORD	length of following data (max 10Bh)
 02h	BYTE	19h (subfunction "Set Directory Information")
 03h	BYTE	directory handle
 04h	DWORD	(big-endian) date and time of creation
 08h	DWORD	(big-endian) object ID of owner
 0Ch	BYTE	maximum directory rights (see #1026)
 0Dh	BYTE	length of directory path
 0Eh  N BYTEs	directory path

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1059)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E2--SF1A-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PATH FROM DIRECTORY ENTRY
	AH = E2h subfn 1Ah
	DS:SI -> request buffer (see #1060)
	ES:DI -> reply buffer (see #1061)
Return: AL = status
	    00h successful
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=01h,AH=E2h/SF=06h,AH=E3h/SF=D7h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1060)
 00h	WORD	0004h (length of following data)
 02h	BYTE	1Ah (subfunction "Get Path From Directory Entry")
 03h	BYTE	volume number (00h-1Fh)
 04h	WORD	(big-endian) directory entry number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1061)
 00h	WORD	(call) size of following results record (max 200h)
 02h 256 BYTEs	path
--------E-21E3-------------------------------
INT 21 - OS/286, OS/386 - ISSUE REAL INTERRUPT
	AH = E3h
	AL = interrupt number
	???
Return: ???
Note:	protected mode only???
SeeAlso: AH=E1h"OS/286",INT 31/AX=0300h
--------T-21E3-------------------------------
INT 21 - DoubleDOS - ADD CHARACTER TO KEYBOARD BUFFER OF CURRENT JOB
	AH = E3h
	AL = character
Return: AL = status
	    00h successful
	    01h buffer full (128 characters)
SeeAlso: AH=E1h"DoubleDOS",AH=E2h"DoubleDOS",AH=E8h"DoubleDOS"
SeeAlso: AH=F3h"DoubleDOS"
--------N-21E3-------------------------------
INT 21 - Novell NetWare - CONNECTION CONTROL
	AH = E3h
	DS:SI -> request buffer (see #1062)
	ES:DI -> reply buffer (see #1063)
Return: AL = status
	    00h successful
	    else error code
Note:	supported by NetWare 4.0+, Advanced NetWare 1.0+, and Alloy NTNX
SeeAlso: AH=E3h/SF=0Ah,AH=E3h/SF=32h,AH=E3h/SF=64h,AH=E3h/SF=C8h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1062)
 00h	WORD	length of following data
 02h	BYTE	subfunction number
		00h login
		01h change password
		02h map user to station set
		03h map object to number
		04h map number to object
		05h get station's logged information
		06h get station's root mask (obsolete)
		07h map group name to number
		08h map number to group name
		09h get memberset M of group G
	var	depends on subfunction
Notes:	the above subfunctions are not described in _NetWare_System_Calls--DOS_
	see separate entries below for other subfunctions
SeeAlso: #1063,#1064,#1067

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1063)
 00h	WORD	(call) length of following buffer space for results
	var	depends on subfunction
SeeAlso: #1062

Format of NetWare object property:
Offset	Size	Description	(Table 1064)
 00h 1-16 BYTEs property name (see also #1065)
  N	BYTE	flags
		bit 0: property is dynamic
		bit 1: property is a set rather than an item
 N+1	BYTE	security levels (see #1066)
	???

(Table 1065)
Values for names of well-known NetWare properties:
 ACCOUNT_BALANCE
 ACCOUNT_SERVERS
 GROUP_MEMBERS
 GROUPS_I'M_IN
 IDENTIFICATION		user's name
 LOGIN_CONTROL
 NET_ADDRESS
 OPERATORS
 PASSWORD
 SECURITY_EQUALS

(Table 1066)
Values for NetWare security levels:
 00h	"anyone" everyone may access
 01h	"logged" only logged-in clients may access
 02h	"object" only clients logged-in with object's name, type, and password
 03h	"supervisor" only clients logged-in with supervisor privileges
 04h	"NetWare" only NetWare may access
Note:	the above values are stored in a nybble; the high half-byte is write
	  access and the low half-byte is read access

(Table 1067)
Values for NetWare object type:
 0000h	unknown
 0001h	user
 0002h	user group
 0003h	print queue
 0004h	file server
 0005h	job server
 0006h	gateway
 0007h	print server
 0008h	archive queue
 0009h	archive server
 000Ah	job queue
 000Bh	administration
 0026h	remote bridge server
 0047h	advertising print server
 0048h-8000h reserved
 FFFFh	wild (used only for finding objects)
--------N-21E3--SF0A-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - ENTER LOGIN AREA
	AH = E3h subfn 0Ah
	DS:SI -> request buffer (see #1068)
	ES:DI -> reply buffer (see #1069)
Return: AL = status
	    00h successful
Desc:	change the login directory for the calling workstation
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=D7h,AH=E3h/SF=14h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1068)
 00h	WORD	length of following data (max 102h)
 02h	BYTE	0Ah (subfunction "Enter Login Area")
 03h	BYTE	number of local drives
 04h	BYTE	length of subdirectory name (00h-FFh)
 05h  N BYTEs	name of subdirectory under SYS:LOGIN where to find the login
		  utility

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1069)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E3--SF0C-------------------------
INT 21 U - Novell NetWare - VERIFY NETWORK SERIAL NUMBER
	AH = E3h subfn 0Ch
	DS:SI -> request buffer (see #1070)
	ES:DI -> reply buffer (see #1071)
Return: AL = status
	    00h successful
Note:	if the network serial number to be verified is correct, the reply
	  buffer will contain the corresponding application number
SeeAlso: AH=E3h/SF=12h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1070)
 00h	WORD	0005h (length of following data)
 02h	BYTE	0Ch (subfunction "Verify Network Serial Number")
 03h	DWORD	(big-endian) network serial number to verify

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1071)
 00h	WORD	(call) 0002h (size of following results buffer)
 02h	WORD	(big-endian) application number
--------N-21E3--SF0D-------------------------
INT 21 - Novell NetWare - MESSAGE SERVICES - LOG NETWORK MESSAGE
	AH = E3h subfn 0Dh
	DS:SI -> request buffer (see #1072)
	ES:DI -> reply buffer (see #1069)
Return: AL = status
	    00h successful
Desc:	append a line to the default file server's NET$LOG.MSG file
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E1h/SF=09h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1072)
 00h	WORD	length of following data (max 52h)
 02h	BYTE	0Dh (subfunction "Log Network Message")
 03h	BYTE	length of message (01h-50h)
 04h  N BYTEs	message (no control characters or characters > 7Eh)
--------N-21E3--SF0E-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DISK UTILIZATION
	AH = E3h subfn 0Eh
	DS:SI -> request buffer (see #1074)
	ES:DI -> reply buffer (see #1075)
Return: AL = status (00h,98h,F2h) (see #1073)
Notes:	this function is supported by Advanced NetWare 2.1+
	the caller must have bindery object read privileges
SeeAlso: AH=E3h/SF=11h,AH=E3h/SF=D6h,AH=E3h/SF=D9h,AH=E3h/SF=E6h,AH=E3h/SF=E9h

(Table 1073)
Values for NetWare function status:
 00h	successful
 98h	nonexistent volume
 F2h	not permitted to read object

Format of NetWare request buffer:
Offset	Size	Description	(Table 1074)
 00h	WORD	0005h (length of following data)
 02h	BYTE	0Eh (subfunction "Get Disk Utilization")
 03h	BYTE	volume number (00h-1Fh)
 04h	DWORD	(big-endian) object ID

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1075)
 00h	WORD	(call) 000Bh (size of following results buffer)
 02h	BYTE	volume number (00h-1Fh)
 03h	DWORD	(big-endian) object ID
 07h	WORD	(big-endian) directories used by object
 09h	WORD	(big-endian) files created by object
 0Bh	WORD	(big-endian) disk blocks used by object-created files
--------N-21E3--SF0F-------------------------
INT 21 - Novell NetWare - FILE SERVICES - SCAN FILE INFORMATION
	AH = E3h subfn 0Fh
	DS:SI -> request buffer (see #1077)
	ES:DI -> reply buffer (see #1078)
Return: AL = status (see #1076)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=B6h,AH=E3h/SF=10h

(Table 1076)
Values for NetWare function status:
 00h	successful
 89h	not permitted to search directory
 FFh	no more matching files

Format of NetWare request buffer:
Offset	Size	Description	(Table 1077)
 00h	WORD	length of following data (max 105h)
 02h	BYTE	0Fh (subfunction "Scan File Information")
 03h	WORD	(big-endian) sequence number
		FFFFh on first call
 05h	BYTE	directory handle or 00h
 06h	BYTE	search attributes (see #0643 at AX=4301h)
 07h	BYTE	length of filespec
 08h  N BYTEs	ASCIZ uppercase filespec

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1078)
 00h	WORD	(call) 005Eh (size of following results buffer)
 02h	WORD	next sequence number (place in request buffer for next call)
 04h 14 BYTEs	ASCIZ filename
 12h	BYTE	file attributes (see #0643 at AX=4301h)
 13h	BYTE	extended file attributes (see #0982 at AH=B6h)
 14h	DWORD	(big-endian) file size in bytes
 18h	WORD	(big-endian) file's creation date (see #0877 at AX=5700h)
 1Ah	WORD	(big-endian) date of last access (see #0876 at AX=5700h)
 1Ch	DWORD	(big-endian) date and time of last update (see #1023)
 20h	DWORD	(big-endian) object ID of owner
 24h	DWORD	(big-endian) date and time last archived (see #1023)
 28h 55 BYTEs	reserved
Note:	the official documentation erroneously lists the field at offset 04h as
	  15 bytes and thus shifts the remaining fields by one byte
--------N-21E3--SF10-------------------------
INT 21 - Novell NetWare - FILE SERVICES - SET FILE INFORMATION
	AH = E3h subfn 10h
	DS:SI -> request buffer (see #1079)
	ES:DI -> reply buffer (see #1080)
Return: AL = status
		 00h successful
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
	the caller must have modify privileges on the directory containing the
	  file
SeeAlso: AH=B6h,AH=E3h/SF=0Fh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1079)
 00h	WORD	length of following data (max 151h)
 02h	BYTE	10h (subfunction "Set File Information")
 03h	BYTE	file attributes (see #0643 at AX=4301h)
 04h	BYTE	extended file attributes (see #0982 at AH=B6h)
 05h  4 BYTEs	reserved
 09h	WORD	(big-endian) file's creation date (see #0877 at AX=5700h)
 0Bh	WORD	(big-endian) date of last access (see #0876 at AX=5700h)
 0Dh	DWORD	(big-endian) date and time of last update (see #1023)
 11h	DWORD	(big-endian) object ID of owner
 15h	DWORD	(big-endian) date and time last archived (see #1023)
 19h 56 BYTEs	reserved
 51h	BYTE	directory handle or 00h
 52h	BYTE	search attributes (see #0643 at AX=4301h)
 53h	BYTE	length of filename
 54h  N BYTEs	filename

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1080)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SF11-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER INFORMATION
	AH = E3h subfn 11h
	DS:SI -> request buffer (see #1081)
	ES:DI -> reply buffer (see #1082)
Return: AL = status
	    00h successful
Desc:	determine the version of software installed on the file server and
	  how it is configured
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=0Eh,AE3h/SF=12h,AH=E3h/SF=CDh,AH=E3h/SF=D3h,AH=E3h/SF=E7h
SeeAlso: AH=E7h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1081)
 00h	WORD	0001h (length of following data)
 02h	BYTE	11h (subfunction "Get File Server Information")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1082)
 00h	WORD	(call) 0080h (size of following results buffer)
 02h 48 BYTEs	server's name
 32h	BYTE	NetWare version
 33h	BYTE	NetWare subversion (0-99)
 34h	WORD	(big-endian) number of connections supported
		NetWare 4.01 reportedly returns maximum simulataneously-used
		  connections
 36h	WORD	(big-endian) number of connections in use
 38h	WORD	(big-endian) maximum connected volumes
---Advanced NetWare 2.1+ ---
 3Ah	BYTE	operating system revision number
 3Bh	BYTE	fault tolerance (SFT) level
 3Ch	BYTE	TTS level
 3Dh	WORD	(big-endian) maximum simultaneously-used connections
		NetWare 4.01 reportedly returns number of connections in use
 3Fh	BYTE	accounting version
 40h	BYTE	VAP version
 41h	BYTE	queueing version
 42h	BYTE	print server version
 43h	BYTE	virtual console version
 44h	BYTE	security restrictions level
 45h	BYTE	internetwork bridge version
 46h 60 BYTEs	reserved
--------N-21E3--SF12-------------------------
INT 21 - Novell NetWare - GET NETWORK SERIAL NUMBER
	AH = E3h subfn 12h
	AL = 00h
	BX = CX = DX = 0000h
	DS:SI -> request buffer (see #1083)
	ES:DI -> reply buffer (see #1084)
Return: AL = status
	    00h successful
Desc:	return the serial number and application number for the software
	  installed on the file server
Notes:	this function is supported by Advanced NetWare 2.1+
	reportedly, the workstation crashes if AL,BX,CX, and DX are not all
	  zero
SeeAlso: AH=E3h/SF=0Ch,AH=E3h/SF=11h

Format of NetWare request buffer:
offset	 size	description	(Table 1083)
 00h	 WORD	0001h (length of following data)
 02h	 BYTE	12h (subfunction "Get Serial Number")

Format of NetWare reply buffer:
offset	 size	description	(Table 1084)
 00h	 WORD	(call) 0006h (size of following results buffer)
 02h   4 BYTEs	(big-endian) NetWare server serial number
 06h   2 BYTEs	(big-endian) NetWare application serial number
--------N-21E3--SF13-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET INTERNET ADDRESS
	AH = E3h subfn 13h
	DS:SI -> request buffer (see #1085)
	ES:DI -> reply buffer (see #1086)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=DCh"NetWare",AH=E3h/SF=16h,AH=EEh"NetWare"

Format of NetWare request buffer:
Offset	Size	Description	(Table 1085)
 00h	WORD	0002h (length of following data)
 02h	BYTE	13h (subfunction "Get Internet Address")
 03h	BYTE	logical connection number (01h-64h)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1086)
 00h	WORD	(call) 000Ch (length of following results buffer)
 02h  4 BYTEs	network number
 06h  6 BYTEs	physical node address
 0Ch  2 BYTEs	socket number
--------N-21E3--SF14-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - LOGIN TO FILE SERVER
	AH = E3h subfn 14h
	DS:SI -> request buffer (see #1087)
	ES:DI -> reply buffer (see #1088)
Return: AL = status
	    00h successful
Desc:	this function retrieves a list indicating the connection numbers under
	  which a bindery object is logged into the default file server
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=D7h"NetWare",AH=F1h"NetWare"

Format of NetWare request buffer:
Offset	Size	Description	(Table 1087)
 00h	WORD	length of following data (max B3h)
 02h	BYTE	14h (subfunction "Login To File Server")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object's name
	BYTE	length of password
		N BYTEs	password

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1088)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E3--SF15-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET OBJECT CONNECTION NUMBERS
	AH = E3h subfn 15h
	DS:SI -> request buffer (see #1089)
	ES:DI -> reply buffer (see #1090)
Return: AL = status
	    00h successful
Desc:	this function retrieves a list indicating the connection numbers under
	  which a bindery object is logged into the default file server
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=DCh"NetWare",AH=E3h/SF=16h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1089)
 00h	WORD	length of following data (max 33h)
 02h	BYTE	15h (subfunction "Get Object Connection Numbers")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1090)
 00h	WORD	(call) length of following results buffer (max 65h)
 02h	BYTE	number of connections
 03h  N BYTEs	connection list
--------N-21E3--SF16-------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET CONNECTION INFORMATION
	AH = E3h subfn 16h
	DS:SI -> request buffer (see #1091)
	ES:DI -> reply buffer (see #1092)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=D7h,AH=DCh"NetWare",AH=E3h/SF=14h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1091)
 00h	WORD	0002h (length of following data)
 02h	BYTE	16h (subfunction "Get Connection Information")
 03h	BYTE	logical connection number (01h-64h)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1092)
 00h	WORD	(call) 003Eh (length of following results buffer)
 02h	DWORD	(big-endian) object ID for object logged in on the connection
		00000000h if no object logged in
 06h	WORD	(big-endian) type of object
 08h 48 BYTEs	name of object
 38h  7 BYTEs	login time (see #1093)
Note:	much of the Novell documentation incorrectly states the reply buffer
	  length as 3Fh instead of 40h, which corresponds to a results length
	  of 3Dh (61) bytes instead of the correct 3Eh (62) bytes

Format of NetWare login time:
Offset	Size	Description	(Table 1093)
 00h	BYTE	year (80-99 = 1980-1999, 00-79 = 2000-2079)
 01h	BYTE	month (1-12)
 02h	BYTE	day (1-31)
 03h	BYTE	hour (0-23)
 04h	BYTE	minute (0-59)
 05h	BYTE	second (0-59)
 06h	BYTE	day of week (0 = Sunday)
--------N-21E3--SF32-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CREATE BINDERY OBJECT
	AH = E3h subfn 32h
	DS:SI -> request buffer (see #1095)
	ES:DI -> reply buffer (see #1096)
Return: AL = status (see #1094)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=33h,AH=E3h/SF=34h,AH=E3h/SF=38h,AH=E3h/SF=39h

(Table 1094)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 EEh	object already exists
 EFh	invalid name
 F0h	wildcard not allowed
 F1h	invalid bindery security level
 F3h	not permitted to rename object
 F4h	not permitted to delete objects
 F5h	not permitted to create objects
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1095)
 00h	WORD	length of following data (max 35h)
 02h	BYTE	32h (subfunction "Create Bindery Object")
 03h	BYTE	object flag (00h static, 01h dynamic)
 04h	BYTE	object security levels
 05h	WORD	(big-endian) type of object
 07h	BYTE	length of object's name
 08h  N BYTEs	object's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1096)
 00h	WORD	0000h (no data returned)
--------N-21E3--SF33-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - DELETE BINDERY OBJECT
	AH = E3h subfn 33h
	DS:SI -> request buffer (see #1097)
	ES:DI -> reply buffer (see #1096)
Return: AL = status (see #1094)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=34h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1097)
 00h	WORD	length of following data (max 33h)
 02h	BYTE	33h (subfunction "Delete Bindery Object")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object's name
--------N-21E3--SF34-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - RENAME BINDERY OBJECT
	AH = E3h subfn 34h
	DS:SI -> request buffer (see #1098)
	ES:DI -> reply buffer (see #1096)
Return: AL = status (see #1094)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=33h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1098)
 00h	WORD	length of following data (max 63h)
 02h	BYTE	34h (subfunction "Rename Bindery Object")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object's name
	BYTE	length of new name (01h-2Fh)
      N BYTEs	new name
--------N-21E3--SF35-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - GET BINDERY OBJECT ID
	AH = E3h subfn 35h
	DS:SI -> request buffer (see #1099)
	ES:DI -> reply buffer (see #1100)
Return: AL = status (00h,96h,FCh,FEh,FFh) (see #1101)
Notes:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
	the requesting workstation must be logged into the file server with
	  read access to the bindery object
SeeAlso: AH=E3h/SF=36h,AH=E3h/SF=44h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1099)
 00h	WORD	length of following data (max 33h)
 02h	BYTE	35h (subfunction "Get Bindery Object ID")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name
 06h  N BYTEs	object's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1100)
 00h	WORD	(call) 0036h (length of following buffer space)
 02h	DWORD	(big-endian) object ID
 06h	WORD	(big-endian) type of object
 08h 48 BYTEs	object name
--------N-21E3--SF36-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - GET BINDERY OBJECT NAME
	AH = E3h subfn 36h
	DS:SI -> request buffer (see #1102)
	ES:DI -> reply buffer (see #1103)
Return: AL = status (see #1101)
Notes:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
	the requesting workstation must be logged into the file server with
	  read access to the bindery object
SeeAlso: AH=E3h/SF=35h,AH=E3h/SF=44h

(Table 1101)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 EFh	invalid name
 F0h	wildcard not allowed
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1102)
 00h	WORD	0005h (length of following data)
 02h	BYTE	36h (subfunction "Get Bindery Object Name")
 03h	DWORD	(big-endian) object ID

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1103)
 00h	WORD	(call) 0036h (length of following buffer space)
 02h	DWORD	(big-endian) object ID
 06h	WORD	(big-endian) type of object
 08h 48 BYTEs	object name
--------N-21E3--SF37-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - SCAN BINDERY OBJECT
	AH = E3h subfn 37h
	DS:SI -> request buffer (see #1104)
	ES:DI -> reply buffer (see #1105)
Return: AL = status (see #1101)
Notes:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
	the requesting workstation must be logged into the file server with
	  read access to the bindery object
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=33h,AH=E3h/SF=38h,AH=E3h/SF=3Ch

Format of NetWare request buffer:
Offset	Size	Description	(Table 1104)
 00h	WORD	length of following data (max 37h)
 02h	BYTE	37h (subfunction "Scan Bindery Object")
 03h	DWORD	(big-endian) last object ID
 07h	WORD	(big-endian) type of object
 09h	BYTE	length of object's name
 0Ah  N BYTEs	object's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1105)
 00h	WORD	(call) 0039h (length of following buffer space)
 02h	DWORD	(big-endian) object ID
		FFFFFFFFh for first call
 06h	WORD	(big-endian) type of object
 08h 48 BYTEs	object name (counted string)
 38h	BYTE	object flag (00h static, 01h dynamic)
 39h	BYTE	object's security levels
 3Ah	BYTE	object properties flag (00h no, FFh yes)
--------N-21E3--SF38-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CHANGE BINDERY OBJECT SECURITY
	AH = E3h subfn 38h
	DS:SI -> request buffer (see #1106)
	ES:DI -> reply buffer (see #1109)
Return: AL = status (00h,96h,F0h,F1h,FBh,FCh,FEh,FFh) (see #1107)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=3Bh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1106)
 00h	WORD	length of following data (max 34h)
 02h	BYTE	38h (subfunction "Change Bindery Object Security")
 03h	BYTE	new security levels
 04h	WORD	(big-endian) type of object
 06h	BYTE	length of object's name (01h-2Fh)
 07h  N BYTEs	object name
--------N-21E3--SF39-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CREATE PROPERTY
	AH = E3h subfn 39h
	DS:SI -> request buffer (see #1108)
	ES:DI -> reply buffer (see #1109)
Return: AL = status (see #1107)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=3Bh

(Table 1107)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 EDh	property already exists
 EFh	invalid name
 F0h	wildcard not allowed
 F1h	invalid bindery security level
 F6h	not permitted to delete properties
 F7h	not permitted to create properties
 FBh	no such property
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1108)
 00h	WORD	length of following data (max 45h)
 02h	BYTE	39h (subfunction "Create Property")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object's name
	BYTE	property flags
	BYTE	property security levels
	BYTE	length of property's name (01h-0Fh)
      N BYTEs	property's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1109)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E3--SF3A-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - DELETE PROPERTY
	AH = E3h subfn 3Ah
	DS:SI -> request buffer (see #1110)
	ES:DI -> reply buffer (see #1109)
Return: AL = status (see #1107)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=32h,AH=E3h/SF=39h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1110)
 00h	WORD	length of following data (max 43h)
 02h	BYTE	3Ah (subfunction "Delete Property")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object's name
	BYTE	length of property's name (01h-0Fh)
		N BYTEs	property's name
--------N-21E3--SF3B-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CHANGE PROPERTY SECURITY
	AH = E3h subfn 3Bh
	DS:SI -> request buffer (see #1112)
	ES:DI -> reply buffer (see #1109)
Return: AL = status (see #1111)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=38h

(Table 1111)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 F0h	wildcard not allowed
 F1h	invalid bindery security level
 FBh	no such property
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1112)
 00h	WORD	length of following data (max 44h)
 02h	BYTE	3Bh (subfunction "Change Property Security")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object name
	BYTE	new property security levels
	BYTE	length of property's name
      N BYTEs	property name
--------N-21E3--SF3C-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - SCAN PROPERTY
	AH = E3h subfn 3Ch
	DS:SI -> request buffer (see #1113)
	ES:DI -> reply buffer (see #1114)
Return: AL = status (00h,96h,F1h,FBh,FCh,FEh,FFh) (see #1111)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=37h,AH=E3h/SF=3Bh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1113)
 00h	WORD	length of following data (max 47h)
 02h	BYTE	3Ch (subfunction "Scan Property")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object name
	DWORD	(big-endian) sequence number
		FFFFFFFFh for first call
	BYTE	length of property's name (01h-0Fh)
      N BYTEs	property's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1114)
 00h	WORD	(call) 0018h (length of following results buffer)
 02h 16 BYTEs	property name
 12h	BYTE	property flags
 13h	BYTE	property security levels
 14h	DWORD	(big-endian) sequence number
 18h	BYTE	property value flag (00h no, FFh yes)
 19h	BYTE	more properties (00h no, FFh yes)
--------N-21E3--SF3D-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - READ PROPERTY VALUE
	AH = E3h subfn 3Dh
	DS:SI -> request buffer (see #1116)
	ES:DI -> reply buffer (see #1117)
Return: AL = status (see #1115)
Desc:	retrieve one 128-byte segment of the specified property's value
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=39h,AH=E3h/SF=3Ch,AH=E3h/SF=3Eh

(Table 1115)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 E8h	not item property
 ECh	no such segment
 F0h	wildcard not allowed
 F1h	invalid bindery security level
 F8h	not permitted to write property
 F9h	not permitted to read property
 FBh	no such property
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1116)
 00h	WORD	length of following data (max 44h)
 02h	BYTE	3Dh (subfunction "Read Property Value")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object name
	BYTE	segment number (01h on first call, increment until done)
	BYTE	length of property's name (01h-0Fh)
      N BYTEs	property name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1117)
 00h	WORD	(call) 0082h (length of following results buffer)
 02h 128 BYTEs	property's value
 82h	BYTE	more segments (00h no, FFh yes)
 83h	BYTE	property's flags
--------N-21E3--SF3E-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - WRITE PROPERTY VALUE
	AH = E3h subfn 3Eh
	DS:SI -> request buffer (see #1118)
	ES:DI -> reply buffer (see #1119)
Return: AL = status (see #1115)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=39h,AH=E3h/SF=3Ch,AH=E3h/SF=3Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1118)
 00h	WORD	length of following data (max C5h)
 02h	BYTE	3Eh (subfunction "Write Property Value")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object name
	BYTE	segment number (01h on first call, increment until done)
	BYTE	erase remaining segments (00h no, FFh yes)
	BYTE	length of property's name (01h-0Fh)
      N BYTEs	property name
    128 BYTEs	property value segment

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1119)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E3--SF3F-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - VERIFY BINDERY OBJECT PASSWORD
	AH = E3h subfn 3Fh
	DS:SI -> request buffer (see #1121)
	ES:DI -> reply buffer (see #1119)
Return: AL = status (see #1120)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=40h

(Table 1120)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 F0h	wildcard not allowed
 FBh	no such property
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure: no such object, bad password, no password for object,
	  or invalid old password

Format of NetWare request buffer:
Offset	Size	Description	(Table 1121)
 00h	WORD	length of following data (max 133h)
 02h	BYTE	3Fh (subfunction "Verify Bindery Object Password")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object name
	BYTE	length of password (00h-7Fh)
      N BYTEs	password
--------N-21E3--SF40-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CHANGE BINDERY OBJECT PASSWORD
	AH = E3h subfn 40h
	DS:SI -> request buffer (see #1122)
	ES:DI -> reply buffer (see #1123)
Return: AL = status (see #1120)
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=3Fh,AH=E3h/SF=41h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1122)
 00h	WORD	length of following data (max 133h)
 02h	BYTE	40h (subfunction "Change Bindery Object Password")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name (01h-2Fh)
 06h  N BYTEs	object name
	BYTE	length of old password (00h-7Fh)
      N BYTEs	old password
	BYTE	length of new password (00h-7Fh)
      N BYTEs	new password

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1123)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E3--SF41-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - ADD BINDERY OBJECT TO SET
	AH = E3h subfn 41h
	DS:SI -> request buffer (see #1125)
	ES:DI -> reply buffer (see #1123)
Return: AL = status (see #1124)
Desc:	add the specified object to a set property
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=40h,AH=E3h/SF=42h,AH=E3h/SF=43h

(Table 1124)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 E9h	member already exists
 EAh	member does not exist
 EBh	not a group property
 F0h	wildcard not allowed
 F8h	can't write property
 F9h	not permitted to read property
 FBh	no such property
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1125)
 00h	WORD	length of following data (max 75h)
 02h	BYTE	41h (subfunction "Add Bindery Object to Set")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name
 06h  N BYTEs	object name
	BYTE	length of property name (01h-0Fh)
      N BYTEs	property name
	WORD	(big-endian) type of member object
	BYTE	length of member object's name
      N BYTEs	member object's name
--------N-21E3--SF42-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - DELETE BINDERY OBJECT FROM SET
	AH = E3h subfn 42h
	DS:SI -> request buffer (see #1126)
	ES:DI -> reply buffer (see #1127)
Return: AL = status (see #1124)
Desc:	delete the specified object from a set property
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=40h,AH=E3h/SF=42h,AH=E3h/SF=43h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1126)
 00h	WORD	length of following data (max 75h)
 02h	BYTE	42h (subfunction "Delete Bindery Object from Set")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name
 06h  N BYTEs	object name
	BYTE	length of property name (01h-0Fh)
      N BYTEs	property name
	WORD	(big-endian) type of member object
	BYTE	length of member object's name
      N BYTEs	member object's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1127)
 00h	WORD	(call) 0000h (no data returned)
--------N-21E3--SF43-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - IS BINDERY OBJECT IN SET
	AH = E3h subfn 43h
	DS:SI -> request buffer (see #1128)
	ES:DI -> reply buffer (see #1127)
Return: AL = status (see #1124)
Desc:	determine whether the specified object is a member of the given set
	  property
Notes:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
	the caller must have read access to the property
SeeAlso: AH=E3h/SF=41h,AH=E3h/SF=42h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1128)
 00h	WORD	length of following data (max 75h)
 02h	BYTE	43h (subfunction "Is Bindery Object In Set")
 03h	WORD	(big-endian) type of object
 05h	BYTE	length of object's name
 06h  N BYTEs	object's name
	BYTE	length of property's name
      N BYTEs	property's name
	WORD	(big-endian) type of member object
	BYTE	length of member object's name
      N BYTEs	member object's name
--------N-21E3--SF44-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - CLOSE BINDERY
	AH = E3h subfn 44h
	DS:SI -> request buffer (see #1129)
	ES:DI -> reply buffer (see #1127)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E3h/SF=45h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1129)
 00h	WORD	0001h (length of following data)
 02h	BYTE	44h (subfunction "Close Bindery")
--------N-21E3--SF45-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - OPEN BINDERY
	AH = E3h subfn 45h
	DS:SI -> request buffer (see #1130)
	ES:DI -> reply buffer (see #1127)
Return: AL = status
	    00h successful
Notes:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
	the bindery may only be opened by the supervisor or an object with
	  equivalent privileges
SeeAlso: AH=E3h/SF=44h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1130)
 00h	WORD	0001h (length of following data)
 02h	BYTE	45h (subfunction "Open Bindery")
--------N-21E3--SF46-------------------------
INT 21 - Novell NetWare - BINDERY SERVICES - GET BINDERY ACCESS LEVEL
	AH = E3h subfn 46h
	DS:SI -> request buffer (see #1131)
	ES:DI -> reply buffer (see #1132)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX

Format of NetWare request buffer:
Offset	Size	Description	(Table 1131)
 00h	WORD	0001h (length of following data)
 02h	BYTE	46h (subfunction "Get Bindery Access Level")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1132)
 00h	WORD	0005h (length of following buffer)
 02h	BYTE	security levels
 03h	DWORD	(big-endian) object ID
--------N-21E3--SF47-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - SCAN BINDERY OBJ TRUSTEE PATHS
	AH = E3h subfn 47h
	DS:SI -> request buffer (see #1133)
	ES:DI -> reply buffer (see #1134)
Return: AL = status (00h,96h,F0h,F1h,FCh,FEh,FFh) (see #1135)
Desc:	iterate through the directories to which an object is a trustee
Note:	this function is supported by Advanced NetWare 1.0+ and Alloy NTNX
SeeAlso: AH=E2h/SF=0Ch,AH=E2h/SF=0Dh,AH=E2h/SF=0Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1133)
 00h	WORD	0008h (length of following data)
 02h	BYTE	47h (subfunction "Scan Bindery Object Trustee Paths")
 03h	BYTE	volume number (00h-1Fh)
 04h	WORD	(big-endian) last sequence number (FFFFh on first call)
 06h	DWORD	(big-endian) object ID

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1134)
 00h	WORD	(call) length of following results buffer (max 107h)
 02h	WORD	(big-endian) next sequence number
 04h	DWORD	(big-endian) object ID
 08h	BYTE	trustee directory rights (see #1026 at AH=E2h/SF=03h)
 09h	BYTE	length of trustee path
 0Ah  N BYTEs	trustee path
--------N-21E3--SF64-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CREATE QUEUE
	AH = E3h subfn 64h
	DS:SI -> request buffer (see #1136)
	ES:DI -> reply buffer (see #1137)
Return: AL = status (00h,96h,99h,9Bh,9Ch,EDh-F1h,F5h,F7h,FCh,FEh,FFh)
		(see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation with supervisor privileges
SeeAlso: AH=E3h/SF=65h,AH=E3h/SF=66h,AH=E3h/SF=68h,AH=E3h/SF=6Bh

(Table 1135)
Values for NetWare function status:
 00h	successful
 96h	server out of memory
 99h	directory full
 9Bh	invalid directory handle
 9Ch	invalid path
 D0h	queue error
 D1h	no such queue
 D2h	no server for queue
 D3h	no queue rights
 D4h	queue full
 D5h	no queue job
 D6h	no job rights
 D7h	queue servicing error
 D9h	station is not a server
 DAh	queue halted
 DBh	too many queue servers
 EDh	property already exists
 EEh	object already exists
 EFh	invalid name
 F0h	wildcard not allowed
 F1h	invalid bindery security level
 F5h	not permitted to create object
 F7h	not permitted to create property
 FCh	no such object
 FEh	server bindery locked
 FFh	bindery failure

Format of NetWare request buffer:
Offset	Size	Description	(Table 1136)
 00h	WORD	length of following data (max ABh)
 02h	BYTE	64h (subfunction "Create Queue")
 03h	WORD	(big-endian) queue type
 05h	BYTE	length of queue's name (01h-2Fh)
 06h  N BYTEs	queue's name
	BYTE	directory handle or 00h
	BYTE	length of path name (01h-76h)
      N BYTEs	path name of directory in which to create queue subdirectory

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1137)
 00h	WORD	(call) 0004h (size of following results buffer)
 02h	DWORD	(big-endian) object ID of queue
--------N-21E3--SF65-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - DESTROY QUEUE
	AH = E3h subfn 65h
	DS:SI -> request buffer (see #1138)
	ES:DI -> reply buffer (see #1143)
Return: AL = status (00h,96h,9Ch,D0h,D1h,FFh) (see also AH=E3h/SF=64h)
	    FFh hardware failure
Desc:	abort all active jobs, detach all job servers, remove all job entries,
	  delete all job files, remove the queue object and its properties
	  from the bindery, and delete the queue's subdirectory
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=64h,AH=E3h/SF=66h,AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=70h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1138)
 00h	WORD	0005h (length of following data)
 02h	BYTE	65h (subfunction "Destroy Queue")
 03h	DWORD	(big-endian) object ID of queue
--------N-21E3--SF66-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE CURRENT STATUS
	AH = E3h subfn 66h
	DS:SI -> request buffer (see #1139)
	ES:DI -> reply buffer (see #1140)
Return: AL = status (00h,96h,9Ch,D1h-D3h,F1h,FCh,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation which is security-equivalent to a
	  member of the queue's Q_USERS or Q_OPERATORS properties
SeeAlso: AH=E3h/SF=64h,AH=E3h/SF=67h,AH=E3h/SF=6Fh,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1139)
 00h	WORD	0005h (length of following data)
 02h	BYTE	66h (subfunction "Read Queue Current Status")
 03h	DWORD	(big-endian) object ID of queue

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1140)
 00h	WORD	(call) 0085h (size of following results)
 02h	DWORD	(big-endian) object ID of queue
 06h	BYTE	status of queue (see #1141)
 07h	BYTE	number of jobs in queue (00h-FAh)
 08h	BYTE	number of servers attached to queue (00h-19h)
 09h 25 DWORDs	list of object IDs of attached servers
 6Dh 25 BYTEs	list of attached servers' stations
 86h	BYTE	(call) maximum number of servers to return

Bitfields for NetWare queue status:
Bit(s)	Description	(Table 1141)
 0	operator disabled addition of new jobs
 1	operator refuses additional job servers attaching
 2	operator disabled job servicing
--------N-21E3--SF67-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - SET QUEUE CURRENT STATUS
	AH = E3h subfn 67h
	DS:SI -> request buffer (see #1142)
	ES:DI -> reply buffer (see #1143)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must have operator privileges
SeeAlso: AH=E3h/SF=64h,AH=E3h/SF=66h,AH=E3h/SF=6Fh,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1142)
 00h	WORD	0006h (length of following data)
 02h	BYTE	67h (subfunction "Set Queue Current Status")
 03h	DWORD	(big-endian) object ID of queue
 07h	BYTE	queue status (see #1141)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1143)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SF68-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CREATE QUEUE JOB AND FILE
	AH = E3h subfn 68h
	DS:SI -> request buffer (see #1144)
	ES:DI -> reply buffer (see #1145)
Return: AL = status (00h,96h,99h,9Ch,D0h-D4h,DAh,EDh,EFh-F1h,F7h,FCh,FEh,FFh)
		(see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation which is security-equivalent to a
	  member of the queue's Q_USER property
SeeAlso: AX=B807h,AH=E0h"SPOOLING",AH=E3h/SF=69h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1144)
 00h	WORD	0107h (length of following data)
 02h	BYTE	68h (subfunction "Close File and Start Queue Job")
 03h	DWORD	(big-endian) object ID of queue
 07h	BYTE	client station
 08h	BYTE	client task number
 09h	DWORD	(big-endian) object ID of client
 0Dh	DWORD	(big-endian) object ID of target server
		FFFFFFFh if any server acceptable
 11h  6 BYTEs	target execution time (year,month,day,hour,minute,second)
		FFFFFFFFFFFFh to execute as soon as possible
 17h  6 BYTEs	job entry time (year,month,day,hour,minute,second)
 1Dh	WORD	(big-endian) job number
 1Fh	WORD	(big-endian) job type
 21h	BYTE	job position
 22h	BYTE	job control flags
 23h 14 BYTEs	ASCIZ job file name
 31h  6 BYTEs	job file handle
 37h	BYTE	server station
 38h	BYTE	server task number
 39h	DWORD	(big-endian) object ID of server
 3Dh 50 BYTEs	ASCIZ job description string
 6Fh 152 BYTEs	client record area

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1145)
 00h	WORD	(call) 0036h (size of following results buffer)
 02h	BYTE	client station
 03h	BYTE	client task number
 04h	DWORD	(big-endian) object ID of client
 08h	DWORD	(big-endian) object ID of target server
 0Ch  6 BYTEs	target execution time (year,month,day,hour,minute,second)
 12h  6 BYTEs	job entry time (year,month,day,hour,minute,second)
 18h	WORD	(big-endian) job number
 1Ah	WORD	(big-endian) job type
 1Ch	BYTE	job position
 1Dh	BYTE	job control flags
 1Eh 14 BYTEs	ASCIZ job file name
 2Ch  6 BYTEs	job file handle
 32h	BYTE	server station
 33h	BYTE	server task number
 34h	DWORD	(big-endian) object ID of server or 00000000h
--------N-21E3--SF69-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CLOSE FILE AND START QUEUE JOB
	AH = E3h subfn 69h
	DS:SI -> request buffer (see #1146)
	ES:DI -> reply buffer (see #1147)
Return: AL = status (00h,96h,D0h,D1h,D3h,D5h,D6h,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on the workstation which created the job
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1146)
 00h	WORD	0007h (length of following data)
 02h	BYTE	69h (subfunction "Close File and Start Queue Job")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1147)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SF6A-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - REMOVE JOB FROM QUEUE
	AH = E3h subfn 6Ah
	DS:SI -> request buffer (see #1148)
	ES:DI -> reply buffer (see #1147)
Return: AL = status (00h,96h,D0h,D1h,D5h,D6h,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must have created the job or be an operator
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1148)
 00h	WORD	0007h (length of following data)
 02h	BYTE	6Ah (subfunction "Remove Job From Queue")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number
--------N-21E3--SF6B-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - GET QUEUE JOB LIST
	AH = E3h subfn 6Bh
	DS:SI -> request buffer (see #1149)
	ES:DI -> reply buffer (see #1150)
Return: AL = status (00h,96h,9Ch,D0h-D3h,FCh,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation which is security-equivalent to a
	  member of the Q_USERS or Q_OPERATORS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1149)
 00h	WORD	0005h (length of following data)
 02h	BYTE	6Bh (subfunction "Get Queue Job List")
 03h	DWORD	(big-endian) object ID of queue

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1150)
 00h	WORD	(call) size of following results buffer (max 1F6h)
 02h	WORD	(big-endian) job count
 04h  N WORDs	(big-endian) list of job numbers by position in queue
	WORD	maximum job numbers
--------N-21E3--SF6C-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE JOB ENTRY
	AH = E3h subfn 6Ch
	DS:SI -> request buffer (see #1151)
	ES:DI -> reply buffer (see #1152)
Return: AL = status (00h,96h,D0h-D3h,D5h,FCh,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation which is security-equivalent to a
	  member of the Q_USERS, Q_OPERATORS, or Q_SERVERS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1151)
 00h	WORD	0007h (length of following data)
 02h	BYTE	6Ch (subfunction "Read Queue Job Entry")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1152)
 00h	WORD	(call) 0100h (size of following results)
 02h	BYTE	client station number
 03h	BYTE	client task number
 04h	DWORD	object ID of client
 08h	DWORD	(big-endian) object ID of target server
		FFFFFFFFh if any server acceptable
 0Ch  6 BYTEs	target execution time (year,month,day,hour,minute,second)
		FFFFFFFFFFFFh if serviced as soon as possible
 12h  6 BYTEs	job entry time (year,month,day,hour,minute,second)
 18h	WORD	(big-endian) job number
 1Ah	WORD	(big-endian) job type
 1Ch	BYTE	job position
 1Dh	BYTE	job control flags (see #1153)
 1Eh 14 BYTEs	ASCIZ job filename
 2Ch  6 BYTEs	job file handle
 32h	BYTE	server station
 33h	BYTE	server task number
 34h	DWORD	object ID of server
 38h 50 BYTEs	ASCIZ job description string
 6Ah 152 BYTEs	client record area

Bitfields for NetWare job control flags:
Bit(s)	Description	(Table 1153)
 3	job will be serviced automatically if connection broken
 4	job remains in queue after server aborts job
 5	client has not filled associated job file
 6	User Hold--job advances, but cannot be serviced until this is
	  cleared by user or operator
 7	Operator Hold--job advances, but cannot be serviced until this is
	  cleared by an operator
--------N-21E3--SF6D-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CHANGE QUEUE JOB ENTRY
	AH = E3h subfn 6Dh
	DS:SI -> request buffer (see #1154)
	ES:DI -> reply buffer (see #1156)
Return: AL = status (00h,96h,D0h,D1h,D5h,D7h,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be an operator or the user who created the job
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Ch,AH=E3h/SF=6Eh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1154)
 00h	WORD	0105h (length of following data)
 02h	BYTE	6Dh (subfunction "Change Queue Job Entry")
 03h	DWORD	(big-endian) object ID of queue
 07h	BYTE	client station number
 08h	BYTE	client task number
 09h	DWORD	(big-endian) object ID of client
 0Dh	DWORD	(big-endian) object ID of target server
 11h  6 BYTEs	target execution time (year,month,day,hour,minute,second)
 17h  6 BYTEs	job entry time (year,month,day,hour,minute,second)
 1Dh	WORD	(big-endian) job number
 1Fh	WORD	(big-endian) job type
 21h	BYTE	job position
 22h	BYTE	job control flags (see #1153)
 23h 14 BYTEs	ASCIZ job filename
 31h  6 BYTEs	job file handle
 37h	BYTE	server station
 38h	BYTE	server task number
 39h	DWORD	object ID of server
 3Dh 50 BYTEs	ASCIZ job description string
 6Fh 152 BYTEs	client record area
--------N-21E3--SF6E-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CHANGE QUEUE JOB POSITION
	AH = E3h subfn 6Eh
	DS:SI -> request buffer (see #1155)
	ES:DI -> reply buffer (see #1156)
Return: AL = status (00h,96h,D0h,D1h,D5h,D6h,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be an operator
	if the specified position is greater than the number of jobs in the
	  queue, the job is placed at the end of the queue
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ah,AH=E3h/SF=6Ch,AH=E3h/SF=6Dh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1155)
 00h	WORD	0008h (length of following data)
 02h	BYTE	6Eh (subfunction "Change Queue Job Position")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number
 09h	BYTE	new position in queue (01h-FAh)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1156)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SF6F-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - ATTACH QUEUE SERVER TO QUEUE
	AH = E3h subfn 6Fh
	DS:SI -> request buffer (see #1157)
	ES:DI -> reply buffer (see #1156)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,DAh,DBh,FEh,FFh)
		(see also AH=E3h/SF=64h)
	    FFh bindery failure, or no such property, or no such member
Desc:	attach the calling job server to the specified queue
Notes:	this function is supported by Advanced NetWare 2.1+
	a queue may have up to 25 job servers attached
	the calling workstation must be security-equivalent to a member of the
	  queue's Q_SERVERS property
SeeAlso: AH=E3h/SF=70h,AH=E3h/SF=71h,AH=E3h/SF=72h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1157)
 00h	WORD	0005h (length of following data)
 02h	BYTE	6Fh (subfunction "Attach Queue Server To Queue")
 03h	DWORD	(big-endian) object ID of queue
--------N-21E3--SF70-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - DETACH QUEUE SERVER FROM QUEUE
	AH = E3h subfn 70h
	DS:SI -> request buffer (see #1158)
	ES:DI -> reply buffer (see #1156)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D2h,FEh,FFh) (see #1135)
Desc:	remove the calling job server from the specified queue's list of
	  servers
Notes:	this function is supported by Advanced NetWare 2.1+
	the caller must have previously attached itself to the queue
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=72h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1158)
 00h	WORD	0005h (length of following data)
 02h	BYTE	70h (subfunction "Detach Queue Server From Queue")
 03h	DWORD	(big-endian) object ID of queue
--------N-21E3--SF71-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - SERVICE QUEUE JOB AND OPEN FILE
	AH = E3h subfn 71h
	DS:SI -> request buffer (see #1159)
	ES:DI -> reply buffer (see #1145)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,D5h,D9h,DAh,FEh,FFh)
		(see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	the caller must be on a workstation which is security-equivalent to a
	  member of the queue's Q_USERS, Q_OPERATORS, or Q_SERVERS properties
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=72h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1159)
 00h	WORD	0007h (length of following data)
 02h	BYTE	71h (subfunction "Service Queue Job and Open File")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) target job type
		FFFFh any
--------N-21E3--SF72-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - FINISH SERVICING QUEUE JOB AND FILE
	AH = E3h subfn 72h
	DS:SI -> request buffer (see #1160)
	ES:DI -> reply buffer (see #1162)
Return: AL = status (00h,96h,D0h,D1h,D6h) (see #1135)
Desc:	inform the Queue Management System (QMS) that the queue server has
	  completed a job
Notes:	this function is supported by Advanced NetWare 2.1+
	the caller must be a job server which has previously obtained a job
	  for servicing
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=71h,AH=E3h/SF=73h,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1160)
 00h	WORD	000Bh (length of following data)
 02h	BYTE	72h (subfunction "Finish Servicing Queue Job and File")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number
 09h	DWORD	(big-endian) charge
--------N-21E3--SF73-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - ABORT SERVICING QUEUE JOB AND FILE
	AH = E3h subfn 73h
	DS:SI -> request buffer (see #1161)
	ES:DI -> reply buffer (see #1162)
Return: AL = status (00h,96h,D0h,D1h,D6h,D9h) (see #1135)
Desc:	inform the Queue Management System (QMS) that the queue server is
	  unable to service a previously-accepted job
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=6Fh,AH=E3h/SF=71h,AH=E3h/SF=72h,AH=E3h/SF=76h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1161)
 00h	WORD	0007h (length of following data)
 02h	BYTE	73h (subfunction "Abort Servicing Queue Job and File")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1162)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SF74-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - CHANGE TO CLIENT RIGHTS
	AH = E3h subfn 74h
	DS:SI -> request buffer (see #1163)
	ES:DI -> reply buffer (see #1162)
Return: AL = status (00h,96h,D0h,D1h,D5h,D9h) (see #1135)
Desc:	temporarily assume the login identity of the client submitting the
	  job being serviced
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be a job server which has obtained a job for servicing
SeeAlso: AH=E3h/SF=75h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1163)
 00h	WORD	0007h (length of following data)
 02h	BYTE	74h (subfunction "Change To Client Rights")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number
--------N-21E3--SF75-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - RESTORE QUEUE SERVER RIGHTS
	AH = E3h subfn 75h
	DS:SI -> request buffer (see #1164)
	ES:DI -> reply buffer (see #1162)
Return: AL = status (00h,96h,9Ch,D0h,D1h,D3h,D5h,D9h,DAh,FEh,FFh) (see #1135)
Desc:	restore server's own identity after assuming the login identity of the
	  client submitting the job being serviced
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be a job server which has previously changed its identity
SeeAlso: AH=E3h/SF=74h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1164)
 00h	WORD	0001h (length of following data)
 02h	BYTE	75h (subfunction "Change To Client Rights")
--------N-21E3--SF76-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - READ QUEUE SERVER CURRENT STATUS
	AH = E3h subfn 76h
	DS:SI -> request buffer (see #1165)
	ES:DI -> reply buffer (see #1166)
Return: AL = status (00h,96h,9Ch,D1h-D3h,F1h,FCh,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation which is security-equivalent to a
	  member of the Q_USERS or Q_OPERATORS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ch,AH=E3h/SF=6Fh,AH=E3h/SF=77h,AH=E3h/SF=78h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1165)
 00h	WORD	000Ah (length of following data)
 02h	BYTE	76h (subfunction "Read Queue Server Current Status")
 03h	DWORD	(big-endian) object ID of queue
 07h	DWORD	(big-endian) object ID of server
 0Bh	BYTE	server station

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1166)
 00h	WORD	(call) 0040h (size of following results)
 02h 64 BYTEs	server status record (format depends on server)
		first four bytes should contain estimated "price" for an
		  average job
--------N-21E3--SF77-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - SET QUEUE SERVER CURRENT STATUS
	AH = E3h subfn 77h
	DS:SI -> request buffer (see #1167)
	ES:DI -> reply buffer (see #1168)
Return: AL = status (00h,96h,9Ch,D0h,D1h,FEh,FFh) (see #1135)
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be a job server which has attached itself to the queue
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ch,AH=E3h/SF=6Fh,AH=E3h/SF=76h,AH=E3h/SF=78h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1167)
 00h	WORD	0045h (length of following data)
 02h	BYTE	77h (subfunction "Set Queue Server Current Status")
 03h	DWORD	(big-endian) object ID of queue
 02h 64 BYTEs	server status record (format depends on server)
		first four bytes should contain estimated "price" for an
		  average job

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1168)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SF78-------------------------
INT 21 - Novell NetWare - QUEUE SERVICES - GET QUEUE JOB'S FILE SIZE
	AH = E3h subfn 78h
	DS:SI -> request buffer (see #1169)
	ES:DI -> reply buffer (see #1170)
Return: AL = status (see also #1135)
	    00h successful
Notes:	this function is supported by Advanced NetWare 2.1+
	caller must be on a workstation which is security-equivalent to a
	  member of the queue's Q_USERS, Q_OPERATORS, or Q_SERVERS properties
SeeAlso: AH=E3h/SF=68h,AH=E3h/SF=6Ch,AH=E3h/SF=71h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1169)
 00h	WORD	0007h (length of following data)
 02h	BYTE	78h (subfunction "Get Queue Job's File Size")
 03h	DWORD	(big-endian) object ID of queue
 07h	WORD	(big-endian) job number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1170)
 00h	WORD	(call) 000Ah (size of following results)
 02h	DWORD	(big-endian) object ID of queue
 06h	WORD	(big-endian) job number
 08h	DWORD	(big-endian) size of job file in bytes
--------N-21E3--SF96-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - GET ACCOUNT STATUS
	AH = E3h subfn 96h
	DS:SI -> request buffer (see #1172)
	ES:DI -> reply buffer (see #1173)
Return: AL = status (00h,C0h,C1h) (see #1171)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=97h,AH=E3h/SF=98h,AH=E3h/SF=99h

(Table 1171)
Values for NetWare function status:
 00h	successful
 C0h	no account privileges
 C1h	no account balance
 C2h	credit limit exceeded
 C3h	too many holds on account

Format of NetWare request buffer:
Offset	Size	Description	(Table 1172)
 00h	WORD	length of following data (max 33h)
 02h	BYTE	96h (subfunction "Get Account Status")
 03h	WORD	(big-endian) type of bindery object
 05h	BYTE	length of object name (01h to 2Fh)
 06h  N BYTEs	object name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1173)
 00h	WORD	(call) length of following buffer space
 02h	DWORD	(big-endian) account balance
 06h	DWORD	(big-endian) credit limit
		signed number indicating lowest allowable account balance
 0Ah 120 BYTEs	reserved
 82h	DWORD	(big-endian) object ID, server 1
 86h	DWORD	(big-endian) hold amount, server 1
	...
 F8h	DWORD	(big-endian) object ID, server 16
 FCh	DWORD	(big-endian) hold amount, server 16
Note:	the reply buffer lists the servers which have placed holds on a portion
	  of the account balance, and the amount reserved by each
--------N-21E3--SF97-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - SUBMIT ACCOUNT CHARGE
	AH = E3h subfn 97h
	DS:SI -> request buffer (see #1174)
	ES:DI -> reply buffer (see #1176)
Return: AL = status (00h,C0h-C2h) (see #1171)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=96h,AH=E3h/SF=98h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1174)
 00h	WORD	length of following data (max 13Fh)
 02h	BYTE	97h (subfunction "Submit Account Charge")
 03h	WORD	(big-endian) service type
 05h	DWORD	(big-endian) amount to be charged to account
 09h	DWORD	(big-endian) amount of prior hold to be cancelled
 0Dh	WORD	(big-endian) type of bindery object
 0Fh	WORD	(big-endian) type of comment
		8000h-FFFFh reserved for experimental use
 11h	BYTE	length of object's name
 12h  N BYTEs	object name
	BYTE	length of comment
      N BYTEs	comment
--------N-21E3--SF98-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - SUBMIT ACCOUNT HOLD
	AH = E3h subfn 98h
	DS:SI -> request buffer (see #1175)
	ES:DI -> reply buffer (see #1176)
Return: AL = status (00h,C0h-C3h) (see #1171)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=96h,AH=E3h/SF=97h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1175)
 00h	WORD	length of following data (max 37h)
 02h	BYTE	98h (subfunction "Submit Account Hold")
 03h	DWORD	(big-endian) amount of account balance to reserve
 07h	WORD	(big-endian) type of bindery object
 09h	BYTE	length of object's name
 0Ah  N BYTEs	object name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1176)
 00h	WORD	0000h (no data returned)
--------N-21E3--SF99-------------------------
INT 21 - Novell NetWare - ACCOUNTING SERVICES - SUBMIT ACCOUNT NOTE
	AH = E3h subfn 99h
	DS:SI -> request buffer (see #1177)
	ES:DI -> reply buffer (see #1176)
Return: AL = status (00h,C0h) (see #1171)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=96h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1177)
 00h	WORD	length of following data (max 137h)
 02h	BYTE	99h (subfunction "Submit Account Note")
 03h	WORD	(big-endian) type of service
 05h	WORD	(big-endian) type of bindery object
 07h	WORD	(big-endian) type of comment
		8000h-FFFFh reserved for experimental use
 09h	BYTE	length of object's name
 0Ah  N BYTEs	object name
	BYTE	length of comment
      N BYTEs	comment
--------N-21E3--SFC8-------------------------
INT 21 - Novell NetWare - FILE SERVER - CHECK CONSOLE PRIVILEGES
	AH = E3h subfn C8h
	DS:SI -> request buffer (see #1178)
	ES:DI -> reply buffer (see #1176)
Return: AL = status (00h,C6h) (see #1181)
Desc:	determine whether the caller is a console operator
Notes:	this function is supported by Advanced NetWare 2.1+
	NetWare determines console privileges by checking the file server's
	  OPERATOR property for the caller's object ID
SeeAlso: AH=E3h/SF=C9h,AH=E3h/SF=D1h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1178)
 00h	WORD	0001h (length of following data)
 02h	BYTE	C8h (subfunction "Check Console Privileges")
--------N-21E3--SFC9-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER DESCRIPTION STRINGS
	AH = E3h subfn C9h
	DS:SI -> request buffer (see #1179)
	ES:DI -> reply buffer (see #1180)
Return: AL = status
	    00h successful
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must be attached to the file server
SeeAlso: AH=E3h/SF=11h,AH=E3h/SF=CDh,AH=E3h/SF=E8h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1179)
 00h	WORD	0001h (length of following data)
 02h	BYTE	C9h (subfunction "Get File Server Description Strings")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1180)
 00h	WORD	(call) 0200h (size of following results buffer)
 02h	var	ASCIZ name of company distributing this copy of NetWare
	var	ASCIZ version and revision
      9 BYTEs	ASCIZ revision date (mm/dd/yy)
	var	ASCIZ copyright notice
--------N-21E3--SFCA-------------------------
INT 21 - Novell NetWare - FILE SERVER - SET FILE SERVER DATE AND TIME
	AH = E3h subfn CAh
	DS:SI -> request buffer (see #1182)
	ES:DI -> reply buffer (see #1184)
Return: AL = status (00h,C6h) (see #1181)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=2Bh,AH=2Dh,AH=E3h/SF=C8h,AH=E7h

(Table 1181)
Values for NetWare function status:
 00h	successful
 C6h	no console rights

Format of NetWare request buffer:
Offset	Size	Description	(Table 1182)
 00h	WORD	0007h (length of following data)
 02h	BYTE	CAh (subfunction "Set File Server Date And Time")
 03h	BYTE	year (00-79 = 2000-2079, 80-99 = 1980-1999)
 04h	BYTE	month (1-12)
 05h	BYTE	day (1-31)
 06h	BYTE	hour (0-23)
 07h	BYTE	minute
 08h	BYTR	second
--------N-21E3--SFCB-------------------------
INT 21 - Novell NetWare - FILE SERVER - DISABLE FILE SERVER LOGIN
	AH = E3h subfn CBh
	DS:SI -> request buffer (see #1183)
	ES:DI -> reply buffer (see #1184)
Return: AL = status (00h,C6h) (see #1181)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CCh,AH=E3h/SF=D3h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1183)
 00h	WORD	0001h (length of following data)
 02h	BYTE	CBh (subfunction "Disable File Server Login")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1184)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SFCC-------------------------
INT 21 - Novell NetWare - FILE SERVER - ENABLE FILE SERVER LOGIN
	AH = E3h subfn CCh
	DS:SI -> request buffer (see #1185)
	ES:DI -> reply buffer (see #1184)
Return: AL = status (00h,C6h) (see #1181)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CBh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1185)
 00h	WORD	0001h (length of following data)
 02h	BYTE	CCh (subfunction "Enable File Server Login")
--------N-21E3--SFCD-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER LOGIN STATUS
	AH = E3h subfn CDh
	DS:SI -> request buffer (see #1186)
	ES:DI -> reply buffer (see #1187)
Return: AL = status (00h,C6h) (see #1181)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CBh,AH=E3h/SF=CCh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1186)
 00h	WORD	0001h (length of following data)
 02h	BYTE	CDh (subfunction "Get File Server Login Status")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1187)
 00h	WORD	(call) 0001h (size of following results buffer)
 02h	BYTE	login state (00h disabled, 01h enabled)
--------N-21E3--SFCE-------------------------
INT 21 - Novell NetWare - FILE SERVICES - PURGE ALL ERASED FILES
	AH = E3h subfn CEh
	DS:SI -> request buffer (see #1188)
	ES:DI -> reply buffer (see #1190)
Return: AL = status (00h,C6h) (see #1181)
Desc:	all files marked for deletion on the file server are purged, regardless
	  of which workstation actually erased them
Notes:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	the calling workstation must have console operator privileges
SeeAlso: AH=13h,AH=E2h/SF=10h,AH=E3h/SF=C8h,AX=F244h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1188)
 00h	WORD	0001h (length of following data)
 02h	BYTE	CEh (subfunction "Purge All Erased Files")
--------N-21E3--SFCF-------------------------
INT 21 - Novell NetWare - FILE SERVER - DISABLE TRANSACTION TRACKING
	AH = E3h subfn CFh
	DS:SI -> request buffer (see #1189)
	ES:DI -> reply buffer (see #1190)
Return: AL = status (00h,C6h) (see #1181)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D0h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1189)
 00h	WORD	0001h (length of following data)
 02h	BYTE	CFh (subfunction "Disable Transaction Tracking")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1190)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SFD0-------------------------
INT 21 - Novell NetWare - FILE SERVER - ENABLE TRANSACTION TRACKING
	AH = E3h subfn D0h
	DS:SI -> request buffer (see #1191)
	ES:DI -> reply buffer (see #1190)
Return: AL = status (00h,C6h) (see #1195)
Desc:	restart transaction tracking after being stopped either explicitly by
	  AH=E3h/SF=CFh or automatically due to a full transaction volume
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CFh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1191)
 00h	WORD	0001h (length of following data)
 02h	BYTE	D0h (subfunction "Enable Transaction Tracking")
--------N-21E3--SFD1-------------------------
INT 21 - Novell NetWare - FILE SERVER - SEND CONSOLE BROADCAST
	AH = E3h subfn D1h
	DS:SI -> request buffer (see #1192)
	ES:DI -> reply buffer (see #1194)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
	the broadcast message will not be received by workstations which have
	  disabled broadcasts with AH=E1h/SF=02h
SeeAlso: AH=E1h/SF=02h,AH=E1h/SF=09h,AH=E3h/SF=C8h,AH=E3h/SF=D3h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1192)
 00h	WORD	length of following data (max A2h)
 02h	BYTE	D1h (subfunction "Send Console Broadcast")
 03h	BYTE	number of connections to receive message
		00h = all, else specific list below
 04h  N BYTEs	connection list
	BYTE	length of message (max 3Ch)
      N BYTEs	message
--------N-21E3--SFD2-------------------------
INT 21 - Novell NetWare - FILE SERVER - CLEAR CONNECTION NUMBER
	AH = E3h subfn D2h
	DS:SI -> request buffer (see #1193)
	ES:DI -> reply buffer (see #1194)
Return: AL = status (00h,C6h) (see #1195)
Desc:	close the open files and release all file locks for a connection,
	  abort transactions if a TTS file server, and detach from the file
	  server
Notes:	this function is supported by Advanced NetWare 2.1+
	the caller must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=C9h,AH=E3h/SF=D1h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1193)
 00h	WORD	0002h (length of following data)
 02h	BYTE	D2h (subfunction "Clear Connection Number")
 03h	BYTE	connection number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1194)
 00h	WORD	(call) 0000h (no results returned)
--------N-21E3--SFD3-------------------------
INT 21 - Novell NetWare - FILE SERVER - DOWN FILE SERVER
	AH = E3h subfn D3h
	DS:SI -> request buffer (see #1196)
	ES:DI -> reply buffer (see #1194)
Return: AL = status (00h,C6h,FFh) (see #1195)
Desc:	take down the file server
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have SUPERVISOR privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CBh,AH=E3h/SF=CFh,AH=E3h/SF=D1h

(Table 1195)
Values for NetWare function status:
 00h	successful
 C6h	no console rights
 FFh	files open

Format of NetWare request buffer:
Offset	Size	Description	(Table 1196)
 00h	WORD	0002h (length of following data)
 02h	BYTE	D3h (subfunction "Down File Server")
 03h	BYTE	flag: force down even if files open if nonzero
--------N-21E3--SFD4-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SYSTEM STATISTICS
	AH = E3h subfn D4h
	DS:SI -> request buffer (see #1197)
	ES:DI -> reply buffer (see #1198)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=C8h,AH=E3h/SF=D9h,AH=E3h/SF=E7h,AH=E3h/SF=E8h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1197)
 00h	WORD	0001h (length of following data)
 02h	BYTE	D4h (subfunction "Get File System Statistics")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1198)
 00h	WORD	(call) 0028h (size of following results buffer)
 02h	DWORD	clock ticks since system started
 06h	WORD	maximum open files set by configuration
 08h	WORD	maximum files open concurrently
 0Ah	WORD	current number of open files
 0Ch	DWORD	total files opened
 10h	DWORD	total file read requests
 14h	DWORD	total file write requests
 18h	WORD	current changed FATs
 1Ah	WORD	total changed FATs
 1Ch	WORD	number of FAT write errors
 1Eh	WORD	number of fatal FAT write errors
 20h	WORD	number of FAT scan errors
 22h	WORD	maximum concurrently-indexed files
 24h	WORD	current number of indexed files
 26h	WORD	number of attached indexed files
 28h	WORD	number of indexed files available
Note:	all fields except the first are big-endian
--------N-21E3--SFD5-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET TRANSACTION TRACKING STATISTICS
	AH = E3h subfn D5h
	DS:SI -> request buffer (see #1199)
	ES:DI -> reply buffer (see #1200)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=CFh,AH=E3h/SF=D0h,AH=E3h/SF=E8h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1199)
 00h	WORD	0001h (length of following data)
 02h	BYTE	D5h (subfunction "TTS Get Statistics")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1200)
 00h	WORD	(call) length of following results buffer (max 1BCh)
 02h	DWORD	(big-endian) clock ticks since system started
 06h	BYTE	transaction tracking supported if nonzero
		(all following fields are invalid if zero)
 07h	BYTE	transaction tracking enabled
 08h	WORD	(big-endian) transaction volume number
 0Ah	WORD	(big-endian) maximum simultaneous transactions configured
 0Ch	WORD	(big-endian) maximum simultaneous transactions since startup
 0Eh	WORD	(big-endian) current transactions in progress
 10h	DWORD	(big-endian) total transactions performed
 14h	DWORD	(big-endian) total write transactions
 18h	DWORD	(big-endian) total transactions backed out
 1Ch	WORD	(big-endian) number of unfilled backout requests
 1Eh	WORD	(big-endian) disk blocks used for transaction tracking
 20h	DWORD	(big-endian) blocks allocated for tracked-file FATs
 24h	DWORD	(big-endian) number of file size changes during a transaction
 28h	DWORD	(big-endian) number of file truncations during a transaction
 2Ch	BYTE	number of records following
 2Dh	Active Transaction Records [array]
	Offset	Size	Description
	 00h	BYTE	logical connection number
	 01h	BYTE	task number
--------N-21E3--SFD6-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DISK CACHE STATISTICS
	AH = E3h subfn D6h
	DS:SI -> request buffer (see #1201)
	ES:DI -> reply buffer (see #1202)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D5h,AH=E3h/SF=D8h,AH=E3h/SF=D9h,AH=E3h/SF=E6h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1201)
 00h	WORD	0001h (length of following data)
 02h	BYTE	D6h (subfunction "Get Disk Cache Statistics")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1202)
 00h	WORD	(call) 004Eh (length of following results buffer)
 02h	DWORD	clock ticks since system started
 06h	WORD	number of cache buffers
 08h	WORD	size of cache buffer in bytes
 0Ah	WORD	number of dirty cache buffers
 0Ch	DWORD	number of cache read requests
 10h	DWORD	number of cache write requests
 14h	DWORD	number of cache hits
 18h	DWORD	number of cache misses
 1Ch	DWORD	number of physical read requests
 20h	DWORD	number of physical write requests
 24h	WORD	number of physical read errors
 26h	WORD	number of physical write errors
 28h	DWORD	cache get requests
 2Ch	DWORD	cache full write requests
 30h	DWORD	cache partial write requests
 34h	DWORD	background dirty writes
 38h	DWORD	background aged writes
 3Ch	DWORD	total cache writes
 40h	DWORD	number of cache allocations
 44h	WORD	thrashing count
 46h	WORD	number of times LRU block was dirty
 48h	WORD	number of reads on cache blocks not yet filled by writes
 4Ah	WORD	number of times a fragmented write occurred
 4Ch	WORD	number of cache hits on unavailable block
 4Eh	WORD	number of times a cache block was scrapped
Note:	all fields except the first are big-endian
--------N-21E3--SFD7-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DRIVE MAPPING TABLE
	AH = E3h subfn D7h
	DS:SI -> request buffer (see #1203)
	ES:DI -> reply buffer (see #1204)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D6h,AH=E3h/SF=D9h,AH=E3h/SF=E6h,AH=E3h/SF=E9h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1203)
 00h	WORD	0001h (length of following data)
 02h	BYTE	D7h (subfunction "Get Drive Mapping Table")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1204)
 00h	WORD	(call) 00ECh (length of following results buffer)
 02h	DWORD	(big-endian) clock tick elapsed since system started
 06h	BYTE	fault tolerance (SFT) level
 07h	BYTE	number of logical drives attached to server
 08h	BYTE	number of physical drives attached to server
 09h  5 BYTEs	disk channel types (00h none, 01h XT, 02h AT, 03h SCSI,
		  04h disk coprocessor drive, 32h-FFh value-added drive types)
 0Eh	WORD	(big-endian) number of outstanding controller commands
 10h 32 BYTEs	drive mapping table (FFh = no such drive)
 30h 32 BYTEs	drive mirror table (secondary physical drive, FFh = none)
 50h 32 BYTEs	dead mirror table (last drive mapped to, FFh if never mirrored)
 70h	BYTE	physical drive being remirrored (FFh = none)
 71h	BYTE	reserved
 72h	DWORD	(big-endian) remirrored block
 76h 60 BYTEs	SFT error table (internal error counters)
--------N-21E3--SFD8-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL DISK STATISTICS
	AH = E3h subfn D8h
	DS:SI -> request buffer (see #1205)
	ES:DI -> reply buffer (see #1206)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D9h,AH=E3h/SF=E9h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1205)
 00h	WORD	0002h (length of following data)
 02h	BYTE	D8h (subfunction "Get Physical Disk Statistics")
 03h	BYTE	physical disk number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1206)
 00h	WORD	(call) 005Dh (size of following results record)
 02h	DWORD	(big-endian) clock ticks since system started
 06h	BYTE	physical disk channel
 07h	BYTE	flag: drive removable if nonzero
 08h	BYTE	physical drive type
 09h	BYTE	drive number within controller
 0Ah	BYTE	controller number
 0Bh	BYTE	controller type
 0Ch	DWORD	(big-endian) size of drive in 4K disk blocks
 10h	WORD	(big-endian) number of cylinders on drive
 12h	BYTE	number of heads
 13h	BYTE	number of sectors per track
 14h 64 BYTEs	ASCIZ drive make and model
 54h	WORD	(big-endian) number of I/O errors
 56h	DWORD	(big-endian) start of Hot Fix table
 5Ah	WORD	(big-endian) size of Hot Fix table
 5Ch	WORD	(big-endian) number of Hot Fix blocks available
 5Eh	BYTE	flag: Hot Fix disabled if nonzero
--------N-21E3--SFD9-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET DISK CHANNEL STATISTICS
	AH = E3h subfn D9h
	DS:SI -> request buffer (see #1207)
	ES:DI -> reply buffer (see #1208)
Return: AL = status (00h,C6h) (see #1195)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=D8h,AH=E3h/SF=E6h,AH=E3h/SF=E9h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1207)
 00h	WORD	0002h (length of following data)
 02h	BYTE	D9h (subfunction "Get Disk Channel Statistics")
 03h	BYTE	channel number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1208)
 00h	WORD	(call) 00A8h (size of following results record)
 02h	DWORD	(big-endian) clock ticks since system started
 06h	WORD	(big-endian) channel run state (see #1209)
 08h	WORD	(big-endian) channel synchronization state (see #1210)
 0Ah	BYTE	driver type
 0Bh	BYTE	major version of driver
 0Ch	BYTE	minor version of driver
 0Dh 65 BYTEs	ASCIZ driver description
 4Eh	WORD	(big-endian) first I/O address used
 50h	WORD	(big-endian) length of first I/O address
 52h	WORD	(big-endian) second I/O address used
 54h	WORD	(big-endian) length of second I/O address
 56h  3 BYTEs	first shared memory address
 59h  2 BYTEs	length of first shared memory address
 5Bh  3 BYTEs	second shared memory address
 5Eh  2 BYTEs	length of second shared memory address
 60h	BYTE	first interrupt number in-use flag
 61h	BYTE	first interrupt number used
 62h	BYTE	second interrupt number in-use flag
 63h	BYTE	second interrupt number used
 64h	BYTE	first DMA channel in-use flag
 65h	BYTE	first DMA channel used
 66h	BYTE	second DMA channel in-use flag
 67h	BYTE	second DMA channel used
 68h	BYTE	flags
 69h	BYTE	reserved
 6Ah 80 BYTEs	ASCIZ configuration description

(Table 1209)
Values for channel run state:
 0000h	running
 0001h	being stopped
 0002h	stopped
 0003h	nonfunctional

(Table 1210)
Values for channel synchronization state:
 0000h	not in use
 0002h	used by NetWare, no other requests
 0004h	used by NetWare, other requests
 0006h	in use, not needed by NetWare
 0008h	in use, needed by NetWare
 000Ah	channel released, NetWare should use it
--------N-21E3--SFDA-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S TASK INFORMATION
	AH = E3h subfn DAh
	DS:SI -> request buffer (see #1211)
	ES:DI -> reply buffer (see #1212)
Return: AL = status (00h,C6h) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DBh,AH=E3h/SF=DFh,AH=E3h/SF=E1h,AH=E3h/SF=E5h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1211)
 00h	WORD	0003h (length of following data)
 02h	BYTE	DAh (subfunction "Get Connection's Task Information")
 03h	WORD	(big-endian) logical connection number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1212)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	BYTE	lock status of connection (see #1213)
 03h	var	Lock Status Information (see #1214)
 N	BYTE	number of records following
 N+1	Active Task Information Records [array]
	Offset	Size	Description
	 00h	BYTE	task number (01h-FFh)
	 01h	BYTE	task state
			01h in TTS explicit transaction
			02h in TTS implicit transaction
			04h shared fileset lock active

(Table 1213)
Values for lock status of connection:
 00h	no locks
 01h	waiting on physical record lock
 02h	waiting on file lock
 03h	waiting on logical record lock
 04h	waiting on semaphore

Format of Lock Status Information:
Offset	Size	Description	(Table 1214)
---lock status 00h---
 no fields
---lock status 01h---
 00h	BYTE	number of waiting task
 01h	DWORD	start address
 05h	DWORD	end address
 09h	BYTE	volume number
 0Ah	WORD	directory entry number
 0Ch 14 BYTEs	ASCIZ filename
---lock status 02h---
 00h	BYTE	number of waiting task
 01h	BYTE	volume number
 02h	WORD	directory entry number
 04h 14 BYTEs	ASCIZ filename
---lock status 03h---
 00h	BYTE	number of waiting task
 01h	BYTE	length of record name
 02h  N BYTEs	ASCIZ record name
---lock status 04h---
 00h	BYTE	number of waiting task
 01h	BYTE	length of semaphore's name
 02h  N BYTEs	ASCIZ semaphore name
--------N-21E3--SFDB-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S OPEN FILES
	AH = E3h subfn DBh
	DS:SI -> request buffer (see #1215)
	ES:DI -> reply buffer (see #1216)
Return: AL = status (00h,C6h) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E2h/SF=1Ah,AH=E3h/SF=C8h,AH=E3h/SF=DAh,AH=E3h/SF=DCh,AH=E3h/SF=DFh
SeeAlso: AH=E3h/SF=E1h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1215)
 00h	WORD	0005h (length of following data)
 02h	BYTE	DBh (subfunction "Get Connection's Open Files")
 03h	WORD	(big-endian) logical connection number
 05h	WORD	(big-endian) last record seen (0000h on first call)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1216)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	WORD	next request record (place in "last record" field on next call)
		0000h if no more records
 04h	BYTE	number of records following
 05h	var	array of File Information Records (see #1217)

Format of NetWare File Information Record:
Offset	Size	Description	(Table 1217)
 00h	BYTE	task number
 01h	BYTE	lock flags (see #1218)
 02h	BYTE	access flags (see #1219)
 03h	BYTE	lock type
		00h no lock
		FEh file lock
		FFh locked by Begin Share File Set
 04h	BYTE	volume number (00h-1Fh)
 05h	WORD	(big-endian) directory entry
 07h 14 BYTEs	ASCIZ filename

Bitfields for lock flags:
Bit(s)	Description	(Table 1218)
 0	file is locked
 1	file opened Shareable
 2	logged
 3	file opened Normal
 6	TTS holding lock
 7	Transaction Flag set on file

Bitfields for access flags:
Bit(s)	Description	(Table 1219)
 0	file open for reading by calling station
 1	file open for writing by calling station
 2	deny reads by other stations
 3	deny writes by other stations
 4	file detached
 5	TTS Holding Detach
 6	TTS Holding Open
--------N-21E3--SFDC-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTIONS USING A FILE
	AH = E3h subfn DCh
	DS:SI -> request buffer (see #1220)
	ES:DI -> reply buffer (see #1221)
Return: AL = status (00h,C6h) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DAh,AH=E3h/SF=DBh,AH=E3h/SF=DFh,AH=E3h/SF=E1h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1220)
 00h	WORD	length of following data (max 104h)
 02h	BYTE	DCh (subfunction "Get Connections Using a File")
 03h	WORD	(big-endian) last record (0000h on first call)
 05h	BYTE	directory handle
 06h	BYTE	length of file path
 07h  N BYTEs	ASCIZ file path

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1221)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	WORD	(big-endian) count of tasks which have opened or logged file
 04h	WORD	(big-endian) count of tasks which have opened file
 06h	WORD	(big-endian) count of opens for reading
 08h	WORD	(big-endian) count of opens for writing
 0Ah	WORD	(big-endian) deny read count
 0Ch	WORD	(big-endian) deny write count
 0Eh	WORD	next request record (place in "last record" field on next call)
		0000h if no more records
 10h	BYTE	locked flag
		00h not locked exclusively
		else locked exclusively
 11h	BYTE	number of records following
 12h	var	array of File Usage Information Records (see #1222)

Format of NetWare File Usage Information Record:
Offset	Size	Description	(Table 1222)
 00h	WORD	(big-endian) logical connection number
 02h	BYTE	task number
 03h	BYTE	lock flags (see #1218)
 04h	BYTE	access flags (see #1219)
 05h	BYTE	lock type
		00h no lock
		FEh file lock
		FFh locked by Begin Share File Set
--------N-21E3--SFDD-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL RECORD LOCKS BY CONN&FILE
	AH = E3h subfn DDh
	DS:SI -> request buffer (see #1224)
	ES:DI -> reply buffer (see #1225)
Return: AL = status (00h,C6h,FFh) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DEh,AH=E3h/SF=DFh

(Table 1223)
Values for NetWare function status:
 00h	successful
 C6h	no console rights
 FFh	file not open

Format of NetWare request buffer:
Offset	Size	Description	(Table 1224)
 00h	WORD	0016h (length of following data)
 02h	BYTE	DDh (subfunction "Get Physical Record Locks by Connection and
		  File")
 03h	WORD	(big-endian) logical connection number
 05h	WORD	(big-endian) last record seen (0000h on first call)
 07h	BYTE	volume number (00h-1Fh)
 08h	WORD	(big-endian) directory handle
 0Ah 14 BYTEs	ASCIZ filename

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1225)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	WORD	next request record (place in "last record" on next call)
		0000h if no more records
 04h	BYTE	number of physical record locks
 05h	BYTE	number of records following
 06h	var	array of Physical Record Lock Info records (see #1226)

Format of NetWare Physical Record Lock Info:
Offset	Size	Description	(Table 1226)
 00h	BYTE	task number
 01h	BYTE	lock status (see #1227)
 02h	DWORD	(big-endian) starting offset of record in file
 06h	DWORD	(big-endian) ending offset of record in file

Bitfields for lock status:
Bit(s)	Description	(Table 1227)
 0	exclusive lock
 1	shareable lock
 2	logged
 6	lock held by TTS
--------N-21E3--SFDE-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL RECORD LOCKS BY FILE
	AH = E3h subfn DEh
	DS:SI -> request buffer (see #1228)
	ES:DI -> reply buffer (see #1229)
Return: AL = status (00h,C6h,FFh) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DDh,AH=E3h/SF=DFh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1228)
 00h	WORD	length of following data (max 104h)
 02h	BYTE	DEh (subfunction "Get Physical Record Locks by File")
 03h	WORD	(big-endian) last record seen (0000h on first call)
 05h	BYTE	directory handle
 06h	BYTE	length of filename
 07h  N BYTEs	ASCIZ filename

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1229)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	WORD	next request record (place in "last record" on next call)
		0000h if no more records
 04h	BYTE	number of physical record locks
 05h	BYTE	number of records following
 06h	var	array of Physical Record Lock Info records (see #1230)

Format of NetWare Physical Record Lock Info:
Offset	Size	Description	(Table 1230)
 00h	WORD	(big-endian) number of tasks logging record
 02h	WORD	(big-endian) number of tasks with shareable lock
 04h	DWORD	(big-endian) starting offset of record in file
 08h	DWORD	(big-endian) ending offset of record in file
 0Ch	WORD	(big-endian) logical connection number
 0Eh	BYTE	task number
 0Fh	BYTE	lock type
		00h none
		FEh file lock
		FFh Begin Share File Set lock
--------N-21E3--SFDF-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET LOGICAL RECORDS BY CONNECTION
	AH = E3h subfn DFh
	DS:SI -> request buffer (see #1231)
	ES:DI -> reply buffer (see #1232)
Return: AL = status (00h,C6h) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DDh,AH=E3h/SF=E0h,AH=E3h/SF=E2h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1231)
 00h	WORD	0005h (length of following data)
 02h	BYTE	DFh (subfunction "Get Logical Records By Connection")
 03h	WORD	(big-endian) logical connection number
 05h	WORD	(big-endian) last record seen (0000h on first call)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1232)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	WORD	next request record (place in "last record" field on next call)
		0000h if no more locked records
 09h	BYTE	number of records following
 0Ah	var	array of Logical Lock Information Records (see #1233)

Format of NetWare Logical Lock Information Record:
Offset	Size	Description	(Table 1233)
 00h	BYTE	task number
 01h	BYTE	lock status (see #1227)
 02h	BYTE	length of logical lock's name
 03h  N BYTEs	logical lock's name
--------N-21E3--SFE0-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET LOGICAL RECORD INFORMATION
	AH = E3h subfn E0h
	DS:SI -> request buffer (see #1234)
	ES:DI -> reply buffer (see #1235)
Return: AL = status (00h,C6h) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DDh,AH=E3h/SF=DFh,AH=E3h/SF=E2h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1234)
 00h	WORD	length of following data (max 67h)
 02h	BYTE	E0h (subfunction "Get Logical Record Information")
 03h	WORD	(big-endian) last record seen (0000h on first call)
 05h	BYTE	length of logical record's name
 06h  N BYTEs	logical record's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1235)
 00h	WORD	(call) size of following results record (max 200h)
 02h	WORD	(big-endian) number of logical connections logging the record
 04h	WORD	(big-endian) number of logical connections with shareable lock
 06h	WORD	(big-endian) next request record (place in "last record" field
		  on next call)
 08h	BYTE	locked exclusively if nonzero
 09h	BYTE	number of records following
 0Ah	var	array of Task Information Records (see #1236)

Format of NetWare Task Information Record:
Offset	Size	Description	(Table 1236)
 00h	WORD	(big-endian) logical connection number
 02h	BYTE	task number
 03h	BYTE	lock status (see #1227)
--------N-21E3--SFE1-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S SEMAPHORES
	AH = E3h subfn E1h
	DS:SI -> request buffer (see #1237)
	ES:DI -> reply buffer (see #1238)
Return: AL = status (00h,C6h) (see #1223)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DBh,AH=E3h/SF=DFh,AH=E3h/SF=E2h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1237)
 00h	WORD	0005h (length of following data)
 02h	BYTE	E1h (subfunction "Get Connection's Semaphores")
 03h	WORD	(big-endian) logical connection number
 05h	WORD	(big-endian) last record seen (0000h on first call)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1238)
 00h	WORD	(call) size of following results record (max 1FEh)
 02h	WORD	next request record (place in "last record" field on next call)
 04h	BYTE	number of records following
 05h	var	array of Semaphore Information Records (see #1239)

Format of NetWare Semaphore Information Record:
Offset	Size	Description	(Table 1239)
 00h	WORD	(big-endian) open count
 02h	BYTE	semaphore value (-128 to 127)
 03h	BYTE	task number
 04h	BYTE	lock type
 05h	BYTE	length of semaphore's name
 06h  N BYTEs	semaphore's name
     14 BYTEs	filename
--------N-21E3--SFE2-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET SEMAPHORE INFORMATION
	AH = E3h subfn E2h
	DS:SI -> request buffer (see #1240)
	ES:DI -> reply buffer (see #1241)
Return: AL = status (00h,C6h) (see #1245)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=E1h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1240)
 00h	WORD	length of following data (max 83h)
 02h	BYTE	E2h (subfunction "Get LAN Driver's Configuration Information")
 03h	WORD	(big-endian) last record seen (0000h on first call)
 05h	BYTE	length of semaphore's name (01h-7Fh)
 06h  N BYTEs	semaphore's name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1241)
 00h	WORD	(call) size of following results buffer (max 1FEh)
 02h	WORD	next request record (place in "last record" on next call)
		0000h if no more
 04h	WORD	(big-endian) number of logical connections opening semaphore
 06h	BYTE	semaphore value (-127 to 128)
 07h	BYTE	number of records following
 08h	var	array of Semaphore Information records (see #1242)

Format of NetWare Semaphore Information:
Offset	Size	Description	(Table 1242)
 00h	WORD	(big-endian) logical connection number
 02h	BYTE	task number
--------N-21E3--SFE3-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET LAN DRIVER'S CONFIGURATION INFO
	AH = E3h subfn E3h
	DS:SI -> request buffer (see #1243)
	ES:DI -> reply buffer (see #1244)
Return: AL = status (00h,C6h) (see #1245)
Notes:	this function is supported by Advanced NetWare 2.1+
	the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=E7h,AH=E3h/SF=E8h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1243)
 00h	WORD	0002h (length of following data)
 02h	BYTE	E3h (subfunction "Get LAN Driver's Configuration Information")
 03h	BYTE	LAN board (00h-03h)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1244)
 00h	WORD	(call) 00ACh (size of following results buffer)
 02h  4 BYTEs	network number
 06h  6 BYTEs	node number
 0Ch	BYTE	LAN driver installed (00h no--remaining fields invalid)
 0Dh	BYTE	option number selected at configuration time
 0Eh 160 BYTEs	configuration text
		ASCIZ hardware type
		ASCIZ hardware settings
--------N-21E3--SFE5-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S USAGE STATISTICS
	AH = E3h subfn E5h
	DS:SI -> request buffer (see #1246)
	ES:DI -> reply buffer (see #1247)
Return: AL = status (00h,C6h) (see #1245)
Notes:	this function is supported by Advanced NetWare 2.1+
	one must have console operator privileges to get statistics for logical
	  connections other than one's own
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=DAh,AH=E3h/SF=DBh,AH=E3h/SF=E1h

(Table 1245)
Values for NetWare function status:
 00h	successful
 C6h	no console rights

Format of NetWare request buffer:
Offset	Size	Description	(Table 1246)
 00h	WORD	0003h (length of following data)
 02h	BYTE	E5h (subfunction "Get Connection's Usage Statistics")
 03h	WORD	(big-endian) logical connection number

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1247)
 00h	WORD	(call) 0014h (size of following results record)
 02h	DWORD	(big-endian) clock ticks since server started
 06h  6 BYTEs	bytes read
 0Ch  6 BYTEs	bytes written
 12h	DWORD	(big-endian) total request packets
--------N-21E3--SFE6-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET BINDERY OBJECT DISK SPACE LEFT
	AH = E3h subfn E6h
	DS:SI -> request buffer (see #1248)
	ES:DI -> reply buffer (see #1249)
Return: AL = status (00h,C6h) (see #1245)
Notes:	this function is supported by Advanced NetWare 2.1+
	one must have console operator privileges to get the free space for
	  other bindery objects
SeeAlso: AH=E3h/SF=C8h,AH=E3h/SF=E8h,AH=E3h/SF=E9h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1248)
 00h	WORD	0005h (length of following data)
 02h	BYTE	E6h (subfunction "Get Bindery Object Disk Space Left")
 03h	DWORD	(big-endian) object ID

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1249)
 00h	WORD	(call) 000Fh (size of following results buffer)
 02h	DWORD	(big-endian) clock ticks elapsed since server started
 06h	DWORD	(big-endian) object ID
 0Ah	DWORD	(big-endian) 4K disk blocks available to user
 0Eh	BYTE	restrictions (00h enforced, FFh not enforced)
--------N-21E3--SFE7-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER LAN I/O STATISTICS
	AH = E3h subfn E7h
	DS:SI -> request buffer (see #1250)
	ES:DI -> reply buffer (see #1251)
Return: AL = status
	    00h successful
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=11h,AH=E3h/SF=D3h,AH=E3h/SF=E8h,AH=E7h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1250)
 00h	WORD	0001h (length of following data)
 02h	BYTE	E7h (subfunction "Get File Server LAN I/O Statistics")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1251)
 00h	WORD	(call) 0042h (size of following results buffer)
 02h	DWORD	clock ticks since system started
 06h	WORD	total routing buffers
 08h	WORD	maximum routing buffers used
 0Ah	WORD	current routing buffers used
 0Ch	DWORD	total file service packets
 10h	WORD	number of file service packets buffered
 12h	WORD	number of invalid connection packets
 14h	WORD	packets with bad logical connection numbers
 16h	WORD	number of packets received during processing
 18h	WORD	number of requests reprocessed
 1Ah	WORD	packets with bad sequence numbers
 1Ch	WORD	number of duplicate replies sent
 1Eh	WORD	number of acknowledgements sent
 20h	WORD	number of packets with bad request types
 22h	WORD	requests to attach to ws for which a request is being processed
 24h	WORD	requests to attach from ws which is already attaching
 26h	WORD	number of forged detach requests
 28h	WORD	detach requests with bad connection number
 2Ah	WORD	requests to detach from ws for which requests pending
 2Ch	WORD	number of cancelled replies
 2Eh	WORD	packets discarded due to excessive hop count
 30h	WORD	packets discarded due to unknown net
 32h	WORD	incoming packets discarded for lack of DGroup buffer
 34h	WORD	outgoing packets discarded due to lack of buffer
 36h	WORD	received packets destined for B,C, or D side drivers
 38h	DWORD	number of NetBIOS packets propagated through net
 3Ch	DWORD	total number of non-file-service packets
 40h	DWORD	total number of routed packets
Note:	all fields except the first are big-endian
--------N-21E3--SFE8-------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER MISC INFORMATION
	AH = E3h subfn E8h
	DS:SI -> request buffer (see #1252)
	ES:DI -> reply buffer (see #1253)
Return: AL = status (00h,C6h) (see #1245)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=E3h/SF=0Eh,AH=E3h/SF=11h,AH=E3h/SF=CDh,AH=E3h/SF=E7h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1252)
 00h	WORD	0001h (length of following data)
 02h	BYTE	E8h (subfunction "Get File Server Misc Information")

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1253)
 00h	WORD	(call) size of following results buffer (max 0048h)
 02h	DWORD	(big-endian) clock ticks since system started
 06h	BYTE	CPU type
		00h Motorola 68000
		01h Intel 8086, 8088, or V20
		02h Intel 80286+
 07h	BYTE	reserved
 08h	BYTE	number of service processes in server
 09h	BYTE	server utilization in percent
 0Ah	WORD	(big-endian) maximum bindery objects set by configuration
		0000h = unlimited
 0Ch	WORD	(big-endian) maximum number of bindery objects used
 0Eh	WORD	(big-endian) current number of bindery objects in use
 10h	WORD	(big-endian) total server memory in KB
 12h	WORD	(big-endian) wasted server memory in KB
		normally 0000h
 14h	WORD	number of records following (01h-03h)
 16h	var	array of Dynamic Memory Information records (see #1254)

Format of NetWare Dynamic Memory Information:
Offset	Size	Description	(Table 1254)
 00h	DWORD	(big-endian) total dynamic space
 04h	DWORD	(big-endian) maximum dynamic space used
 08h	DWORD	(big-endian) current dynamic space usage
--------N-21E3--SFE9-------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET VOLUME INFORMATION
	AH = E3h subfn E9h
	DS:SI -> request buffer (see #1255)
	ES:DI -> reply buffer (see #1256)
Return: AL = status
	    00h successful
Notes:	this function is supported by Advanced NetWare 2.1+
SeeAlso: AH=DAh,AH=E2h/SF=15h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1255)
 00h	WORD	0002h (length of following data)
 02h	BYTE	E9h (subfunction "Get Volume Information")
 03h	BYTE	directory handle

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1256)
 00h	WORD	(call) 0028h (length of following results buffer)
 02h	DWORD	(big-endian) elapsed system time
 06h	BYTE	volume number
 07h	BYTE	logical drive number
 08h	WORD	(big-endian) sectors per block
 0Ah	WORD	(big-endian) starting block
 0Ch	WORD	(big-endian) total blocks on volume
 0Eh	WORD	(big-endian) blocks available on volume
 10h	WORD	(big-endian) total directory slots
 12h	WORD	(big-endian) directory slots available
 14h	WORD	(big-endian) maximum directory entries actually used
 16h	BYTE	flag: volume hashed if nonzero
 17h	BYTE	flag: volume cached if nonzero
 18h	BYTE	flag: volume removable if nonzero
 19h	BYTE	flag: volume mounted if nonzero
 1Ah 16 BYTEs	NUL-padded volume name
--------N-21E4-------------------------------
INT 21 O - Novell NetWare - SET FILE ATTRIBUTES (FCB)
	AH = E4h
	CL = file attributes (see #1257)
	DX:DX -> FCB (see #0574 at AH=0Fh)
Return: AL = error code
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
SeeAlso: AX=4301h

Bitfields for NetWare file attributes:
Bit(s)	Description	(Table 1257)
 0	read only
 1	hidden
 2	system
 7	shareable
--------v-21E4-------------------------------
INT 21 - VIRUS - "Anarkia" - INSTALLATION CHECK
	AH = E4h
Return: AH = 04h if resident
SeeAlso: AH=E1h"VIRUS",AH=E7h"VIRUS"
--------T-21E400-----------------------------
INT 21 - DoubleDOS - INSTALLATION CHECK/PROGRAM STATUS
	AX = E400h
Return: AL = program status
	    00h if DoubleDOS not present
	    01h if running in visible DoubleDOS partition
	    02h if running in the invisible DoubleDOS partition
SeeAlso: AH=E5h"DoubleDOS",AX=F400h
--------E-21E400-----------------------------
INT 21 - OS/286, OS/386 - CHAIN TO REAL-MODE HANDLER
	AX = E400h
	???
Return: ???
Note:	protected mode only???
--------E-21E402-----------------------------
INT 21 - OS/286, OS/386 - SET PROTECTED-MODE TASK GATE
	AX = E402h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=E403h
--------E-21E403-----------------------------
INT 21 - OS/286, OS/386 - REMOVE PROTECTED-MODE TASK GATE
	AX = E403h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=E402h
--------N-21E5-------------------------------
INT 21 O - Novell NetWare - UPDATE FILE SIZE (FCB)
	AH = E5h
	DS:DX -> FCB (see #0574 at AH=0Fh)
Return: AL = (unreliable) return code
Notes:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
	on success, NetWare sets AL to zero; on errors it restores AL
--------T-21E5-------------------------------
INT 21 - DoubleDOS - OTHER PROGRAM STATUS
	AH = E5h
Return: AL = status
	    00h no program in other partition
	    01h program in other partition is running
	    02h program in other partition is suspended
SeeAlso: AX=E400h"DoubleDOS",AH=F5h"DoubleDOS"
--------E-21E500-----------------------------
INT 21 - OS/286, OS/386 - HEAP MANAGEMENT STRATEGY
	AX = E500h
	???
Return: ???
SeeAlso: AX=E501h
--------E-21E501-----------------------------
INT 21 - OS/286, OS/386 - FORCE HEAP COMPACTION
	AX = E501h
	???
Return: ???
SeeAlso: AX=E500h
--------N-21E6-------------------------------
INT 21 O - Novell NetWare - COPY FILE TO FILE (FCB)
	AH = E6h
	CX:DX = number of bytes to copy
	DS:SI -> opened source FCB
	ES:DI -> opened destination FCB
Return: AL = error code
	CX = ???
	DX = ???
Note:	this function was added in NetWare 4.0, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
--------E-21E6-------------------------------
INT 21 P - OS/286, OS/386 - ISSUE REAL PROCEDURE SIGNAL FROM PROTECTED MODE
	AH = E6h
	???
Return: ???
SeeAlso: AH=E2h"OS/286"
--------N-21E7-------------------------------
INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER DATE AND TIME
	AH = E7h
	DS:DX -> date/time buffer (see #1258)
Return: AL = error code
	    00h successful
	    FFh unsuccessful
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+,
	  Alloy NTNX, and Banyan VINES
SeeAlso: AH=2Ah,AH=2Ch,AX=5FC0h,AH=E3h/SF=CAh

Format of NetWare date/time buffer:
Offset	Size	Description	(Table 1258)
 00h	BYTE	year (80-99 = 1980-1999, 0-79 = 2000-2079)
 01h	BYTE	month (1=Jan)
 02h	BYTE	day
 03h	BYTE	hours
 04h	BYTE	minutes
 05h	BYTE	seconds
 06h	BYTE	day of week (0 = Sunday) (Novell and NTNX only)
--------E-21E7-------------------------------
INT 21 - OS/286, OS/386 - CREATE CODE SEGMENT
	AH = E7h
	???
Return: ???
SeeAlso: AH=E8h"OS/286",AH=E9h"OS/286",AH=EAh"OS/286"
--------v-21E7-------------------------------
INT 21 - VIRUS - "Spyer"/"Kiev" - INSTALLATION CHECK
	AH = E7h
Return: AH = 78h if resident
SeeAlso: AH=E4h"VIRUS",AX=EC59h
--------N-21E8-------------------------------
INT 21 O - Novell NetWare, Alloy NTNX - SET FCB RE-OPEN MODE
	AH = E8h
	DL = mode
	    00h no automatic re-open
	    01h auto re-open
Return: AL = error code
Desc:	provided backward compatibility with a bug in CP/M and early DOS vers
Note:	this function was added in NetWare 4.6, but was removed some time prior
	  to Advanced NetWare 2.15, and is no longer listed in current Novell
	  documentation
--------E-21E8-------------------------------
INT 21 - OS/286, OS/386 - SEGMENT CREATION
	AH = E8h
	AL = type
	    00h data segment
	    01h data window/alias
	    02h real segment
	    03h real window/alias
		CX:DX = size in bytes
		SI:BX -> start of desired memory block
		Return:	AX = selector
		 06h shareable segment
	???
Return: ???
SeeAlso: AH=E7h"OS/286",AH=E9h"OS/286"
--------T-21E8-------------------------------
INT 21 - DoubleDOS - SET/RESET KEYBOARD CONTROL FLAGS
	AH = E8h
	AL = program for which to set flags (00h this program, 01h other)
	DX = keyboard control flags (see #1259)
Return: DX = previous flags
Notes:	disabling Ctrl-PrtSc will allow the program to intercept the keystroke;
	  disabling any of the other keystrokes disables them completely
	identical to AH=F8h
SeeAlso: AH=E1h"DoubleDOS",AH=E2h"DoubleDOS",AH=E3h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"

Bitfields for DoubleDOS keyboard control flags:
Bit(s)	Description	(Table 1259)
 0	menu
 1	exchange
 2	entire keyboard enable/disable
 3	Ctrl-C
 4	Ctrl-PrtSc
 5	Alt/Erase
 6	Ctrl-Break
 7	Ctrl-NumLock
 8	shift-PrtSc
 9-13	undefined
 14	cancel key (clear keyboard buffer)
 15	suspend key
Note:	setting a enables the corresponding key or operatin, clearing a
	  disables it
--------E-21E9-------------------------------
INT 21 P - OS/286, OS/386 - CHANGE SEGMENTS
	AH = E9h
	AL = function
	    01h change code segment parameters
	    02h change data segment parameters
	    05h adjust segment limit
	    06h change segment base address
	???
Return: ???
SeeAlso: AH=E7h"OS/286",AH=E8h"OS/286",AH=EAh"OS/286",AH=EDh"OS/286"
SeeAlso: INT 31/AX=0007h,INT 31/AX=0008h
--------T-21E9-------------------------------
INT 21 - DoubleDOS - SET TIMESHARING PRIORITY
	AH = E9h
	AL = new priority (see #1260)
Return: AL = priority setting if AL=05h on entry
Note:	identical to AH=F9h
SeeAlso: AH=EAh"DoubleDOS",AH=EBh"DoubleDOS",AH=F9h"DoubleDOS"

(Table 1260)
Values for DoubleDOS timesharing priority:
 00h	visible program gets 70%, invisible gets 30% (default)
 01h	visible program gets 50%, invisible gets 50%
 02h	visible program gets 30%, invisible gets 70%
 03h	Top program gets 70%, bottom program gets 30%
 04h	Top program gets 30%, bottom program gets 70%
 05h	get current priority
--------N-21E900-----------------------------
INT 21 - Novell NetWare - DIRECTORY SERVICES - GET DIRECTORY HANDLE
	AX = E900h
	DX = drive number to check (0 = A:, ..., 25 = Z:, 26 ... 31)
Return: AL = directory handle
	AH = flags (drive not mapped if none set)
	    bit 0: permanent handle
	    bit 1: temporary handle
	    bit 7: mapped to local drive
Note:	this function is supported by NetWare 4.0+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E2h/SF=00h,AH=E2h/SF=01h,AH=E2h/SF=0Ah
--------N-21E905-----------------------------
INT 21 - Novell NetWare shell 3.01 - MAP A FAKE ROOT DIRECTORY
	AX = E905h
	BL = drive number (0=default, 1=A:, ...)
	DS:DX -> ASCIZ path for fake root (may include server name or be empty)
Return: CF set on error
	    AL = error code (03h,0Fh,11h) (see #0885 at AH=59h)
	CF clear if successful
Note:	if drive is not currently mapped, a drive mapping will be created
SeeAlso: AX=E906h
--------N-21E906-----------------------------
INT 21 - Novell NetWare shell 3.01 - DELETE FAKE ROOT DIRECTORY
	AX = E906h
	BL = drive number (0=default, 1=A:, ...)
Note:	drive remains mapped
SeeAlso: AX=E905h
--------N-21E907-----------------------------
INT 21 - Novell NetWare shell 3.01 - GET RELATIVE DRIVE DEPTH
	AX = E907h
	BL = drive number (0=default, 1=A:, ...)
Return: AL = number of directories below the fake root
	    FFh if no fake root assigned
SeeAlso: AX=E905h
--------N-21E908BL00-------------------------
INT 21 - Novell NetWare shell 3.01 - SET SHOW DOTS
	AX = E908h
	BL = 00h	don't return '.' or '..' during directory scans
	   = nonzero	directory scans will return '.' or '..' entries
Return: BL = previous show-dots setting
--------N-21E909-----------------------------
INT 21 - Novell NetWare - NetWare shell - CONVERT DOS FILE HANDLE TO NETWARE
	AX = E909h
	BX = DOS file handle
Return: AX = 0000h if successful
	    BX:CX:DX = NetWare file handle
Notes:	this function is partially a reverse of "AttachHandle" (AH=B4h)
	many NetWare 3.x functions use a four-byte file handle, which appears
	  to be the high four bytes of the six-byte NetWare handle
SeeAlso: AH=B4h"NetWare"
--------N-21EA-------------------------------
INT 21 - Novell NetWare, Alloy NTNX - RETURN SHELL VERSION
	AH = EAh
	AL = return version environment string
		 00h		don't return string
	    nonzero	return string in 40-byte buffer pointed to by ES:DI
		Return: buffer filled with three null-terminated entries:
			major operating system
			version
			hardware type
Return: AH = operating system (00h = MS-DOS)
	AL = hardware type
	    00h IBM PC
	    01h Victor 9000
	BH = major shell version
	BL = minor shell version
	CH = (v3.01+) shell type
	    00h conventional memory
	    01h expanded memory
	    02h extended memory
	CL = shell revision number
Note:	this function is supported by NetWare 4.6 and Advanced NetWare 1.0+
--------T-21EA-------------------------------
INT 21 - DoubleDOS - TURN OFF TASK SWITCHING
	AH = EAh
Return: task switching turned off
SeeAlso: AH=E9h"DoubleDOS",AH=EBh"DoubleDOS",AH=FAh"DoubleDOS"
SeeAlso: INT FA"DoubleDOS"
--------E-21EA-------------------------------
INT 21 - OS/286, OS/386 - ALLOCATE HUGE SEGMENT
	AH = EAh
	???
Return: ???
Note:	protected mode only???
SeeAlso: AH=E7h"OS/286",AH=E8h"OS/286",AH=E9h"OS/286"
--------N-21EB-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - LOG FILE
	AH = EBh
	DS:DX -> ASCIZ filename
	if function C6h lock mode 01h:
	    AL = flags
		00h log file only
		01h lock as well as log file
		    BP = lock timeout in timer ticks (1/18 second)
			0000h = don't wait if file already locked
Return: AL = status (see #1261)
Desc:	add the location and size of the specified file to the log table and
	  optionally lock the file
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=BCh"NetWare",AH=CAh,AH=D0h,AH=ECh"NetWare",AH=EDh"NetWare"

(Table 1261)
Values for NetWare status:
 00h	successful
 96h	no dynamic memory for file
 FEh	timed out
 FFh	failed
--------T-21EB-------------------------------
INT 21 - DoubleDOS - TURN ON TASK SWITCHING
	AH = EBh
Return: task switching turned on
SeeAlso: AH=E9h"DoubleDOS",AH=EAh"DoubleDOS",AH=FBh"DoubleDOS"
SeeAlso: INT FB"DoubleDOS"
--------E-21EB00-----------------------------
INT 21 - OS/386 VMM - GET A PAGE TABLE ENTRY BY LINEAR ADDRESS
	AX = EB00h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB02h,AX=EB04h,INT 31/AX=0506h
--------E-21EB02-----------------------------
INT 21 - OS/386 VMM - GET A PAGE TABLE ENTRY BY 16-BIT SEGMENT:OFFSET
	AX = EB02h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB00h,AX=EB04h
--------E-21EB03-----------------------------
INT 21 - OS/386 VMM - FREE MAPPED PAGES
	AX = EB03h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB05h,INT 31/AX=0801h
--------E-21EB04-----------------------------
INT 21 - OS/386 VMM - GET A PAGE TABLE ENTRY BY 32-BIT SEGMENT:OFFSET
	AX = EB04h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB00h,AX=EB02h
--------E-21EB05-----------------------------
INT 21 - OS/386 VMM - MAP PAGES
	AX = EB05h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB03h,INT 31/AX=0800h
--------E-21EB06-----------------------------
INT 21 - OS/386 VMM - LOCK PAGES IN MEMORY
	AX = EB06h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB07h,INT 31/AX=0600h
--------E-21EB07-----------------------------
INT 21 - OS/386 VMM - UNLOCK MEMORY PAGES
	AX = EB07h
	???
Return: ???
Note:	protected mode only???
SeeAlso: AX=EB06h,INT 31/AX=0601h
--------N-21EC-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - RELEASE FILE
	AH = ECh
	DS:DX -> ASCIZ filename
Return: AL = status
	    00h successful
		 FFh file not found
Desc:	unlock the specified file but retain it in the log table
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=CDh,AH=EBh"NetWare",AH=EDh"NetWare"
--------T-21EC-------------------------------
INT 21 - DoubleDOS - GET VIRTUAL SCREEN ADDRESS
	AH = ECh
Return: ES = segment of virtual screen
Desc:	determine the address of the virtual screen to which the program
	  should write instead of the actual video memory, so that the
	  multitasked programs do not interfere with each other's output
Notes:	screen address can change if task-switching is on!!
	identical to AH=FCh
SeeAlso: INT 10/AH=FEh,AH=FCh"DoubleDOS",INT FC"DoubleDOS"
--------E-21EC-------------------------------
INT 21 - OS/286, OS/386 - BLOCK TRANSFER
	AH = ECh
	???
Return: ???
--------v-21EC59-----------------------------
INT 21 - VIRUS - "Terror" - INSTALLATION CHECK
	AX = EC59h
Return: BP = EC59h if resident
SeeAlso: AH=E7h"VIRUS",AH=EEh"VIRUS"
--------N-21ED-------------------------------
INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - CLEAR FILE
	AH = EDh
	DS:DX -> ASCIZ filename
Return: AL = status
	    00h successful
	    FFh no files found
Desc:	unlock the file and remove it from the log table
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=CBh"NetWare",AH=CEh,AH=CFh,AH=EBh"NetWare",AH=ECh"NetWare"
--------E-21ED-------------------------------
INT 21 - OS/286, OS/386 - GET SEGMENT OR WINDOW DESCRIPTOR
	AH = EDh
	???
Return: ???
Note:	protected mode only???
SeeAlso: AH=E9h"OS/286"
--------N-21EE-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - GET PHYSICAL STATION ADDRESS
	AH = EEh
Return: CX:BX:AX = six-byte physical address
Note:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
SeeAlso: AH=E3h/SF=13h
--------T-21EE-------------------------------
INT 21 - DoubleDOS - GIVE AWAY TIME TO OTHER TASKS
	AH = EEh
	AL = number of 55ms time slices to give away
Return: returns after giving away time slices
SeeAlso: AH=FEh"DoubleDOS",INT FE"DoubleDOS"
--------v-21EE-------------------------------
INT 21 - VIRUS - "Jerusalem-G", "Pregnant" - INSTALLATION CHECK
	AH = EEh
Return: AX = 0300h if "Jerusalem-G" resident
	AL = 05h if "Pregnant" resident
SeeAlso: AH=DDh"VIRUS",AX=EC59h,AH=F0h"VIRUS"
--------N-21EF00-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DRIVE HANDLE TABLE
	AX = EF00h
Return: ES:SI -> network shell's 32-byte drive handle table
	AX = 0000h
Notes:	this function is supported by Advanced NetWare 1.0+
	each byte in the drive handle table contains the directory handle for
	  the corresponding drive, or 00h if not mapped to a directory
SeeAlso: AX=EF01h,AX=EF02h,AX=EF03h,AX=EF04h
--------N-21EF01-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DRIVE FLAG TABLE
	AX = EF01h
Return: ES:SI -> network shell's 32-byte drive flag table (see #1262)
	AX = 0000h
Notes:	this function is supported by Advanced NetWare 1.0+
	each byte in the drive flag table corresponds to a drive
SeeAlso: AX=EF00h,AX=EF02h,AX=EF03h

(Table 1262)
Values in NetWare drive flag table:
 00h	drive is not mapped
 01h	permanent network drive
 02h	temporary network drive
 80h	mapped to local drive
 81h	local drive used as permanent network drive
 82h	local drive used as temporary network drive
--------N-21EF02-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DRIVE CONNECTION ID TABLE
	AX = EF02h
Return: ES:SI -> network shell's 32-byte drive conection ID table
	AX = 0000h
Notes:	this function is supported by Advanced NetWare 1.0+
	each byte in the connection ID table corresponds to a drive and
	  contains either the connection ID (1-8) of the server for that drive
	  or 00h if the drive is not mapped to a file server
SeeAlso: AX=EF01h,AX=EF03h,AX=F002h
--------N-21EF03-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET CONNECTION ID TABLE
	AX = EF03h
Return: ES:SI -> network shell's connection ID table (see #1263)
	AX = 0000h
Note:	this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=EF00h,AX=EF02h,AX=EF04h,AX=F002h

Format of NetWare connection ID table [one entry of eight-element array]:
Offset	Size	Description	(Table 1263)
 00h	BYTE	in-use flag
		E0h AES temporary
		F8h IPX in critical section
		FAh processing
		FBh holding
		FCh AES waiting
		FDh waiting
		FEh receiving
		FFh sending
 01h	BYTE	order number assigned to server (1-8)
 02h	DWORD	(big-endian) file server's network address
 06h  6 BYTEs	(big-endian) file server's node address
 0Ch	WORD	(big-endian) socket number
 0Eh	WORD	(big-endian) base receive timeout in clock ticks
 10h  6 BYTEs	(big-endian) preferred routing node
 16h	BYTE	packet sequence number
 17h	BYTE	connection number (FFh = no connection)
 18h	BYTE	connection status (00h if active)
 19h	WORD	(big-endian) maximum receive timeout in clock ticks
 1Bh  5 BYTEs	reserved
--------N-21EF04-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET FILE SERVER NAME TABLE
	AX = EF04h
Return: ES:SI -> network shell's file server name table (see #1264)
	AX = 0000h
Note:	this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=EF03h

Format of file server name table:
Offset	Size	Description	(Table 1264)
 00h 48 BYTEs	ASCIZ server name for first entry in connection ID table
 30h 48 BYTEs	ASCIZ server name for second entry in connection ID table
	...
150h 48 BYTEs	ASCIZ server name for eighth entry in connection ID table
--------T-21F0-------------------------------
INT 21 - DoubleDOS - MENU CONTROL
	AH = F0h
	AL = subfunction
	    01h exchange tasks
	    73h resume invisible job if suspended
	    74h kill other job
	    75h suspend invisible job
Note:	identical to AH=E0h
SeeAlso: AH=E0h"DoubleDOS"
--------v-21F0-------------------------------
INT 21 - VIRUS - "Frere Jacques" - INSTALLATION CHECK
	AH = F0h
Return: AX = 0300h if resident
SeeAlso: AH=EEh"VIRUS",AH=F1h"VIRUS"
--------N-21F000-----------------------------
INT 21 - Novell NetWare - WORKSTATION - SET PREFERRED CONNECTION ID
	AX = F000h
	DL = connection ID of prefered file server (1-8) or 00h for none
Notes:	this function is supported by Advanced NetWare 1.0+
	the preferred connection ID is set to 00h by the shell on EOJ
SeeAlso: AH=D6h,AX=EF03h,AX=F001h,AX=F002h,AX=F005h
--------N-21F001-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET PREFERRED CONNECTION ID
	AX = F001h
Return: AL = connection ID of preferred file server (1-8), 00h if not set
Notes:	this function is supported by Advanced NetWare 1.0+
	the preferred connection ID is set to 00h by the shell on EOJ
SeeAlso: AH=D6h,AX=EF03h,AX=F000h,AX=F002h,AX=F005h
--------N-21F002-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET DEFAULT CONNECTION ID
	AX = F002h
Return: AL = connection ID of current default file server (1-8) (see AX=EF03h)
Note:	this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=EF03h,AX=F000h,AX=F004h
--------N-21F003-----------------------------
INT 21 - Novell NetWare - PRINT SERVICES - GET LPT CAPTURE STATUS
	AX = F003h
Return: AH = status
	    00h not active
	    FFh active
		AL = connection ID (01h-08h)
Note:	this function is supported by Advanced NetWare 1.0+
SeeAlso: AX=B800h,AX=B804h,AH=DFh/DL=00h,AH=DFh/DL=04h
--------N-21F004-----------------------------
INT 21 - Novell NetWare - WORKSTATION - SET PRIMARY CONNECTION ID
	AX = F004h
	DL = connection ID of primary file server (1-8) or 00h for none
Note:	this function is supported by Advanced NetWare 2.0+
SeeAlso: AH=D6h,AX=EF03h,AX=F000h,AX=F002h,AX=F005h
--------N-21F005-----------------------------
INT 21 - Novell NetWare - WORKSTATION - GET PRIMARY CONNECTION ID
	AX = F005h
Return: AL = connection ID of primary file server (1-8), 00h if not set
Notes:	this function is supported by Advanced NetWare 2.0+
	by default, the primary file server is the one from which the login
	  script executed; it is set to 00h if the workstation is not logged in
	  and when it detaches from its primary file server
SeeAlso: AH=D6h,AX=EF03h,AX=F000h,AX=F002h,AX=F004h
--------N-21F1-------------------------------
INT 21 - Novell NetWare - CONNECTION SERVICES - FILE SERVER CONNECTION
	AH = F1h
	AL = subfunction
	    00h attach to file server
		DL = preferred file server (01h-08h)
		 01h detach from file server
		DL = connection ID
	    02h logout from file server
		DL = connection ID
Return: AL = status (see #1265)
Note:	these functions are supported by Advanced NetWare 1.0+
SeeAlso: AH=D7h"NetWare",AH=E3h/SF=14h

(Table 1265)
Values for NetWare function status:
 00h	successful
 F8h	already attached to server
 F9h	connection table full
 FAh	no more server slots
 FCh	unknown file server
 FEh	server bindery locked
 FFh	no response from server, or connection does not exist
--------T-21F1-------------------------------
INT 21 - DoubleDOS - CLEAR KEYBOARD BUFFER FOR CURRENT JOB
	AH = F1h
SeeAlso: AH=E1h"DoubleDOS",AH=F2h"DoubleDOS",AH=F3h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
--------v-21F1-------------------------------
INT 21 - VIRUS - "F1-337" - ???
	AH = F1h
	???
Return: ???
SeeAlso: AH=F0h"VIRUS",AX=F1E9h
--------v-21F1E9-----------------------------
INT 21 - VIRUS - "Tremor" - INSTALLATION CHECK
	AX = F1E9h
Return: AX = installation state
	    CADEh installed, and calling program is infected
	    F100h not installed (normal DOS return value)
	    else  installed, but calling program is not infected
SeeAlso: AH=F1h"VIRUS",AX=F2AAh
--------N-21F2-------------------------------
INT 21 u - Novell NetWare v3.01+ shell interface - MULTIPLEXOR
	AH = F2h
	AL = function (see #1266)
	    (subfunction stored at DS:SI for AL=56h,57h,
	      DS:SI+2 for AL=15h-17h,23h, DS:SI+11h for AL=68h)
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (contents vary by function)
	ES:DI -> reply buffer (contents vary by function)
Return: AL = status
	reply buffer filled as appropriate for function
Note:	this is a multiplexor providing a "raw" interface to the underlying
	  NetWare Core Protocol.  Many functions which were accessed via a
	  separate AH function in older versions can also be accessed here,
	  but some NetWare 3.x calls appear to be available only here.
SeeAlso: AX=F244h,AX=F268h/SF=3Dh

(Table 1266)
Values for NetWare Core Protocol functions:
Fnc/Subfn	Description
01h	File Set Lock
02h	File Release Lock
03h	Log File (see AH=EBh"NetWare")
04h	Lock File Set (see AH=CBh"NetWare")
05h	Release File (see AH=CCh,AH=ECh"NetWare")
06h	Release File Set (see AH=CDh"NetWare")
07h	Clear File (see AH=CEh,AH=EDh"NetWare")
08h	Clear File Set (see AH=CFh"NetWare")
09h	Log Logical Record (see AH=D0h"NetWare")
0Ah	Lock Logical Record Set (see AH=D1h"NetWare")
0Bh	Clear Logical Record (see AH=D4h"NetWare")
0Ch	Release Logical Record (see AH=D2h"NetWare")
0Dh	Release Logical Record Set (see AH=D3h"NetWare")
0Eh	Clear Logical Record Set (see AH=D5h"NetWare")
0Fh	Allocate Resource (see AH=D8h"NetWare")
10h	Deallocate Resource (see AH=D9h"NetWare")
11h/0Ah	Get Printer Queue
11h/xxh	print spooling (see AX=E0xxh"NetWare")
12h	Get Volume Info with Number (see AH=DAh"NetWare")
13h	Get Station Number (see AH=DCh"NetWare")
14h	Get File Server Date and Time (see AH=E7h"NetWare")
15h/xxh	broadcast services (see AX=E1xxh"NetWare")
16h/0Fh	Rename Directory
16h/1Bh	Scan Salvagable Files
16h/1Ch	Recover Salvagable File
16h/1Dh	Purge Salvagable File
16h/1Eh	Scan Dir Entry
16h/1Fh	Get Dir ENtry
16h/20h	Scan Volume for Restrictions
16h/21h	Add User Disk Space Restriction (see AX=F216h/SF=21h)
16h/22h	Clear Volume Restrictions
16h/23h	Scan Dir Restrictions
16h/24h	Set Directory Disk Space Restriction (see AX=F216h/SF=24h)
16h/25h	Set Entry
16h/26h	Scan File or Directory For Extended Trustees (see AX=F216h/SF=26h)
16h/27h	Add Extended Trustee to Directory or File (see AX=F216h/SF=27h)
16h/28h	Scan File Physical
16h/29h	Get Object Disk Restrictions (see AX=F216h/SF=29h)
16h/2Ah	Get Effective Rights
16h/2Bh	Delete Trustee
16h/2Ch	Get Volume Usage
16h/2Dh	Get Dir Info
16h/2Eh	Move Entry
16h/2Fh	Fill Name Space Buffer
16h/30h	Get Name Space Entry
16h/31h	Open Data Stream
16h/32h	Get Object Effective Rights
16h/33h	Get Extended Volume Info
16h/F3h	Map Directory Number to Path
16h/xxh file/directory services (see AX=E2xxh"NetWare")
17h/17h	Get Encryption Key
17h/18h	Login Object Encrypted
17h/1Ch	Get Connection Information (see AX=F217h/SF=1Ch)
17h/1Fh	Get Connection List from Object
17h/48h	Get Bindery Object Access Level
17h/49h	Is Station a Manager?
17h/4Ah	Verify Bindery Object Password Encrypted
17h/4Bh	Change Bindery Object Password Encrypted
17h/4Ch	Get Relation of an Object
17h/D2h Clear Connection Number (Logout Station) (see AX=F217h/SF=D2h)
17h/EBh	Get Connection's Open Files (see AX=F217h/SF=EBh)
17h/ECh	Get Connections Using a File (see AX=F217h/SF=ECh)
17h/EEh	Get Physical Record Locks by File (see AX=F217h/SF=EEh)
17h/F2h Get Semaphore Information (see AX=F217h/SF=F2h)
17h/F3h Map Directory Number to Path (see AX=F217h/SF=F3h)
17h/F4h	Convert Path to Directory Entry (see AX=F217h/SF=F4h)
17h/xxh	connection control (see AX=E3xxh"NetWare")
18h	End of Job (see AH=D6h"NetWare")
19h	Logout (see AH=D7h"NetWare")
1Ah	Log Physical Record (see AH=BCh"NetWare")
1Bh	Lock Physical Record Set (see AH=C2h"NetWare")
1Ch	Release Physical Record (see AH=BDh"NetWare")
1Dh	Release Physical Record Set (see AH=C3h"NetWare")
1Eh	Clear Physical Record (see AH=BEh"NetWare")
1Fh	Clear Physical Record Set (see AH=C4h"NetWare")
20h/xxh	semaphore services (see AX=C5xxh"NetWare")
21h	Negotiate Buffer
22h/00h	TTS Is Available (see AX=C702h"NetWare")
22h/01h	TTS Begin Transaction (see AX=C700h"NetWare")
22h/02h	TTS End Transaction (see AX=C701h"NetWare")
22h/03h	TTS Abort Transaction (see AX=C703h"NetWare")
22h/04h	TTS Transaction Status (see AX=C704h"NetWare")
22h/05h	TTS Get Application Thresholds (see AX=C705h"NetWare")
22h/06h	TTS Set Application Thresholds (see AX=C706h"NetWare")
22h/07h	TTS Get Workstation Thresholds (see AX=C707h"NetWare")
22h/08h	TTS Set Workstation Thresholds (see AX=C708h"NetWare")
22h/09h	TTS Get Control Flags
22h/0Ah	TTS Set Control Flags
23h/01h	AFP Create Directory
23h/02h	AFP Create File
23h/03h	AFP Delete
23h/04h	AFP Get Entry ID From Name
23h/05h	AFP Get FIle Infomration
23h/06h	AFP Get Entry ID From NetWare Handle
23h/07h	AFP Rename
23h/08h	AFP Open File Fork
23h/09h	AFP Set File Information
23h/0Ah	AFP Scan File Information
23h/0Bh	AFP Alloc Temporary Dir Handle
23h/0Ch	AFP Get Entry ID From Path Name
3Dh	Commit File
3Eh	File Search Initialize (FindFirst)
3Fh	File Search Continue (FindNext)
40h	Search File
42h	File Close
43h	File Create
44h	Erase Files
45h	File Rename
46h	Set File Attributes
47h	Get File Size
48h	File Read
49h	File Write
4Ah	File Server Copy (see AH=F3h"NetWare")
4Bh	Set File Time and Date
4Ch	File Open
4Dh	Create New File
4Eh	Allow Task Access to File
4Fh	Set Extended File Attributes (see AH=B6h"NetWare")
55h	Get File Bit Map
56h/xx	extended attribute services (OS/2)
56h/01h	close extended attribute
56h/02h	write extended attribute
56h/03h	read extended attribute
56h/04h	enumerate extended attribute
56h/05h	duplicate EA
57h/01h	open/create file/directory
57h/02h	init search, continue with 57h/03h
57h/03h	Scan NS Entry Info
57h/04h	rename file/directory
57h/05h	scan for trustees
57h/06h	Get NS Entry Info (see AX=F257h/SF=06h)
57h/07h	Set NS Entry DOS Info
57h/08h	delete file/directory
57h/09h	set short directory handle
57h/0Ah	Add Trustee
57h/0Bh	Delete Trustee
57h/0Ch	Allocate Temp NS Dir Handle
57h/13h	Read NS Info
57h/15h	get path string for short directory handle
57h/16h	Get Directory Base
57h/17h	Get NS Info
57h/19h	Write NS Info
57h/1Ah	Read Extended NS Info
57h/1Bh	Write Extended NS Infor
57h/1Ch	Get NS Path
57h/1Dh	Get Effective Rights
58h/01h	Get Volume Audit Statistics
58h/02h	Add Audit Property
58h/03h	Login as Volume Auditor
58h/04h Change Auditor Password
58h/05h Check Audit Access
58h/06h	Remove Audit Property
58h/07h	Disable Auditing on Volume
58h/08h	Enable Auditing on Volume
58h/09h	Is User Audited?
58h/0Ah	Read Auditing Bit Map
58h/0Bh	Read Audit Config Header
58h/0Dh	Logout as Volume Auditor
58h/0Eh	Reset Auditing File
58h/0Fh	Reset Audit History File
58h/10h	Write Auditing Bit Map
58h/11h	Write Audit Config Header
58h/13h	Get Auditing Flags
58h/14h	Close Old Auditing File
58h/15h	Delete Old Auditing File
58h/16h	Check Audit Level Two Access
5Ah/01h	Get DM Info
61h	Negotiate LIP Buffer, packet signing, and IPX checksums
65h	Packet Burst Connection
68h/xxh NetWare 4.x directory services (subfn at DS:[SI+11h])
68h/01h NDS resolve name
68h/03h	NDS read property
68h/35h NDS get server address
68h/36h NDS set keys
68h/39h NDS begin login
68h/3Ah NDS finish login
68h/3Bh NDS begin authenticate
68h/3Ch NDS finish authenticate
68h/3Dh NDS Logout
72h	NetWare 4.x Time Services
7Bh/01h	Get Cache Information
7Bh/02h	Get File Server Information
7Bh/03h	Get NetWare File Systems Information
7Bh/04h	Get User Information
7Bh/05h	Get Packet Burst Information
7Bh/06h	Get IPX/SPX Information
7Bh/07h	Get Garbage Collection Information
7Bh/08h	Get CPU Information
7Bh/09h	Get Volume Switch Information
7Bh/0Ah	Get NLM Loaded List
7Bh/0Bh	Get NLM Information
7Bh/0Ch	Get Directory Cache Information
7Bh/0Dh	Get OS Version Information
7Bh/0Eh	Get Active Connection List by Type
7Bh/0Fh	Get NLM's Resource Tag List
7Bh/14h	Get Active LAN Board List
7Bh/15h	Get LAN Configuration Information
7Bh/16h	Get LAN Common Counters Information
7Bh/17h	Get LAN Custom Counters Information
7Bh/18h	Get LAN Config Strings
7Bh/19h	Get LSL Informatino
7Bh/1Ah	Get LSL Logical Board Statistics
7Bh/1Eh	Get Media Manager Object Information
7Bh/1Fh	Get Media Manager Object List
7Bh/20h	Get Media Manager Object Children List
7Bh/21h	Get Volume Segment List
7Bh/28h	Get Active Protocol Stacks
7Bh/29h	Get Protocol Stack Configuration Information
7Bh/2Ah	Get Protocol Stack Statistics Information
7Bh/2Bh	Get Protocol Stack Custom Information
7Bh/2Ch	Get Protocol Stack Numbers By Media Number
7Bh/2Dh	Get Protocol Stack Numbers By LAN Board Number
7Bh/2Eh	Get Media Name by Media Number
7Bh/2Fh	Get Loaded Media Number List
7Bh/32h	Get General Router and SAP Information
7Bh/33h	Get Network Router Information
7Bh/34h	Get Network Routers Information
7Bh/35h	Get Known Networks Information
7Bh/36h	Get Server Information
7Bh/38h	Get Known Servers Information
7Bh/3Ch	Get Server Set Commands Information
7Bh/3Dh	Get Server Set Categories
Note:	the subfunction is stored at DS:SI for AL=56h,57h, DS:SI+2 for
	  AL=15h-17h,23h
--------T-21F2-------------------------------
INT 21 - DoubleDOS - SEND CHARACTER TO KEYBOARD BUFFER OF OTHER JOB
	AH = F2h
	AL = character
Return: AL = status
	    00h successful
	    01h buffer full (128 characters)
SeeAlso: AH=E2h"DoubleDOS",AH=F1h"DoubleDOS",AH=F3h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
--------N-21F216SF21-------------------------
INT 21 - Novell NetWare v3+ - ADD USER DISK SPACE RESTRICTION
	AX = F216h subfn 21h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1267)
	ES:DI -> reply buffer (ignored)
Return: AL = status
SeeAlso: AX=F216h/SF=24h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1267)
 00h	WORD	000Ah (length of following data)
 02h	BYTE	21h (subfunction "Add User Disk Space Restriction")
 03h	BYTE	volume number
 04h	DWORD	(big-endian) object ID
 08h	DWORD	(big-endian) disk space limit in 4K blocks
		00000000h to 40000000h
--------N-21F216SF24-------------------------
INT 21 - Novell NetWare v3+ - SET DIRECTORY DISK SPACE RESTRICTION
	AX = F216h subfn 24h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1268)
	ES:DI -> reply buffer (ignored)
Return: AL = status
SeeAlso: AX=F216h/SF=21h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1268)
 00h	WORD	0006h (length of following data)
 02h	BYTE	24h (subfunction "Set Directory Disk Space Restriction")
 03h	BYTE	directory handle
 04h	DWORD	(big-endian) disk space limit in 4K blocks
		00000000h to remove restriction, negative to set to 0 blocks
--------N-21F216SF26-------------------------
INT 21 - Novell NetWare v3+ - SCAN FILE OR DIRECTORY FOR EXTENDED TRUSTEES
	AX = F216h subfn 26h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1269)
	ES:DI -> reply buffer (see #1270)
Return: AL = status
Desc:	get up to 20 extended trustee entries per call for a file or directory

Format of NetWare request buffer:
Offset	Size	Description	(Table 1269)
 00h	WORD	length of following data
 02h	BYTE	26h (subfunc "Scan File or Directory For Extended Trustees")
 03h	BYTE	directory handle
 04h	BYTE	sequence number
		00h for first call, increment by number of returned entries
 05h	BYTE	length of path
 06h  N BYTEs	pathname

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1270)
 00h	BYTE	number of entries returned (max 20)
 01h 20 DWORDs	(big-endian) list of object IDs
 51h 20 WORDs	list of associated trustee rights
--------N-21F216SF27-------------------------
INT 21 - Novell NetWare v3+ - ADD EXTENDED TRUSTEE TO DIRECTORY OR FILE
	AX = F216h subfn 27h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1271)
	ES:DI -> reply buffer (ignored)
Return: AL = status

Format of NetWare request buffer:
Offset	Size	Description	(Table 1271)
 00h	WORD	length of following data
 02h	BYTE	27h (subfunction "Add Extended Trustee to Directory or File")
 03h	BYTE	directory handle
 04h	DWORD	(big-endian) object ID
 08h	WORD	trustee rights (see #1272)
 0Ah	BYTE	path length
 0Bh  N BYTEs	path name

Bitfields for NetWare trustee rights:
Bit(s)	Description	(Table 1272)
 0	read
 1	write
 3	create
 4	delete
 5	access
 6	file
 7	modify
 8	supervisor
--------N-21F216SF29-------------------------
INT 21 - Novell NetWare v3+ - GET OBJECT DISK RESTRICTIONS
	AX = F216h subfn 29h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1273)
	ES:DI -> reply buffer (see #1274)
Return: AL = status
	reply buffer filled
Note:	this function returns successfully, showing no restriction, if an
	  invalid object ID is specified
SeeAlso: AX=F216h/SF=24h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1273)
 00h	WORD	0006h (length of following data)
 02h	BYTE	21h (subfunction "Get Object Disk Restrictions")
 03h	BYTE	volume number
 04h	DWORD	(big-endian) object ID

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1274)
 00h	DWORD	disk space limit
 04h	DWORD	disk space currently in use by object
--------N-21F217SF1C-------------------------
INT 21 - Novell NetWare v3+ - GET CONNECTION INFORMATION
	AX = F217h subfn 1Ch
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1275)
	ES:DI -> reply buffer (see #1276)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1275)
 00h	WORD	0005h (length of following data)
 02h	BYTE	1Ch (subfunction "Get Connection Information")
 03h	DWORD	target connection number
Note:	connection numbers greater than the maximum supported by the server
	  can cause ABENDs

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1276)
 00h	DWORD	(big-endian) unique user ID, 00000000h if no one logged in
 04h	WORD	(big-endian) user type
 06h 48 BYTEs	user name
 36h  7 BYTEs	login time (see #1258)
 3Dh	BYTE	reserved
--------N-21F217SFD2-------------------------
INT 21 - Novell NetWare v3+ - CLEAR CONNECTION NUMBER (LOGOUT STATION)
	AX = F217h subfn D2h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1277)
	ES:DI -> reply buffer (ignored)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1277)
 00h	WORD	0002h (length of following data)
 02h	BYTE	D2h (subfunction "Clear Connection Number")
 03h	BYTE	connection number
--------N-21F217SFEB-------------------------
INT 21 - Novell NetWare v3+ - GET CONNECTION'S OPEN FILES
	AX = F217h subfn EBh
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1278)
	ES:DI -> reply buffer (see #1279)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1278)
 00h	WORD	0005h (length of following data)
 02h	BYTE	EBh (subfunction "Get Connection's Open Files")
 03h	WORD	target connection number
 05h	WORD	last record seen (set to 0000h for first call)
Note:	connection numbers greater than the maximum supported by the server
	  can cause ABENDs

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1279)
 00h	WORD	next request record
 02h	WORD	number of records returned (max 28)
 04h 29N BYTEs	array of connection records (see #1280)

Format of NetWare connection record:
Offset	Size	Description	(Table 1280)
 00h	WORD	task number
 02h	BYTE	lock type
 03h	BYTE	access control
 04h	BYTE	lock flag
 05h	BYTE	volume number
 06h	DWORD	parent directory entry number
 0Ah	DWORD	directory entry number
 0Eh	BYTE	reserved
 0Fh	BYTE	data stream type
 10h	BYTE	file name length
 11h 12 BYTEs	file name
--------N-21F217SFEC-------------------------
INT 21 - Novell NetWare v3+ - GET CONNECTIONS USING A FILE
	AX = F217h subfn ECh
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1281)
	ES:DI -> reply buffer (see #1282)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1281)
 00h	WORD	0009h (length of following data)
 02h	BYTE	ECh (subfunction "Get Connections Using a File")
 03h	BYTE	data stream type
 04h	BYTE	volume number
 05h	DWORD	directory entry number
 09h	WORD	last record seen (0000h for first call)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1282)
 00h	WORD	next request record
 02h	WORD	use count
 04h	WORD	open count
 06h	WORD	number of times open for reading
 08h	WORD	number of times open for writing
 0Ah	WORD	Deny Read count
 0Ch	WORD	Deny Write count
 0Eh	BYTE	flag: locked
 0Fh	BYTE	data stream type
 10h	WORD	number of records returned (max 70)
 12h 7N BYTEs	returned records (see #1283)

Format of returned record:
Offset	Size	Description	(Table 1283)
 00h	WORD	connection number
 02h	WORD	task number
 04h	BYTE	lock type
 05h	BYTE	access flag
 06h	BYTE	lock flag
--------N-21F217SFEE-------------------------
INT 21 - Novell NetWare v3+ - GET PHYSICAL RECORD LOCKS BY FILE
	AX = F217h subfn EEh
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1284)
	ES:DI -> reply buffer (see #1285)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1284)
 00h	WORD	0009h (length of following data)
 02h	BYTE	EEh (subfunction "Get Physical Record Locks by File")
 03h	BYTE	data stream number
 04h	BYTE	volume number
 05h	DWORD	directory entry number
 09h	WORD	last record seen (0000h for first call)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1285)
 00h	WORD	next request record
 02h	WORD	number of locks
 04h 17N BYTEs	array of lock records, one per lock (see #1286)

Format of NetWare lock record:
Offset	Size	Description	(Table 1286)
 00h	WORD	logged count
 02h	WORD	number of shareable locks
 04h	DWORD	start offset of record
 08h	DWORD	end offset of record
 0Ch	WORD	logical connection number
 0Eh	WORD	task number
 10h	BYTE	lock type
--------N-21F217SFF2-------------------------
INT 21 - Novell NetWare v3+ - GET SEMAPHORE INFORMATION
	AX = F217h subfn F2h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1287)
	ES:DI -> reply buffer (see #1288)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1287)
 00h	WORD	length of following data (max 84h)
 02h	BYTE	F2h (subfunction "Get Semaphore Information")
 03h	WORD	last record seen (0000h on first call)
 05h	BYTE	length of semaphore name (max 128)
 06h  N BYTEs	semaphore name

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1288)
 00h	WORD	next request record
 02h	WORD	open count
 04h	BYTE	value of semaphore
 05h	WORD	number of records returned
 07h 2N WORDs	list of logical connection number/task number pairs
--------N-21F217SFF3-------------------------
INT 21 - Novell NetWare v3+ - MAP DIRECTORY NUMBER TO PATH
	AX = F217h subfn F3h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1289)
	ES:DI -> reply buffer (see #1290)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F217h/SF=F4h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1289)
 00h	WORD	0007h (length of following data)
 02h	BYTE	F3h (subfunction "Map Directory Number to Path")
 03h	BYTE	volume number
 04h	DWORD	directory entry number
 08h	BYTE	name space type

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1290)
 00h	BYTE	directory path length
 01h  N BYTEs	directory path (NetWare style, separated by length descriptors
		  rather than slashes or backslashes)
--------N-21F217SFF4-------------------------
INT 21 - Novell NetWare v3+ - CONVERT PATH TO DIRECTORY ENTRY
	AX = F217h subfn F4h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1291)
	ES:DI -> reply buffer (see #1292)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F217h/SF=F3h

Format of NetWare request buffer:
Offset	Size	Description	(Table 1291)
 00h	WORD	length of following data
 02h	BYTE	F4h (subfunction "Convert Path to Directory Entry")
 03h	BYTE	directory handle or 00h for none
 04h	BYTE	length of directory path
 05h  N BYTEs	directory path (must be fully qualified if no handle specified)

Format of NetWare reply buffer:
Offset	Size	Description	(Table 1292)
 00h	BYTE	(ret) volume number
 01h	DWORD	(ret) directory entry number
--------N-21F244-----------------------------
INT 21 - Novell NetWare - FILE SERVICES - ERASE FILES
	AX = F244h
	DS:SI -> request buffer (see #1294)
	ES:DI -> reply buffer (ignored???)
Return: AL = status (see #1293)
Note:	this function only marks the file for deletion; use AH=E2h/SF=CEh to
	  actually delete all marked files
SeeAlso: AH=13h,AH=41h,AH=E2h/SF=0Bh,AH=E3h/SF=CEh

(Table 1293)
Values for NetWare function status:
 00h	successful
 98h	nonexistent volume
 9Bh	invaid directory handle
 9Ch	invalid path
 FFh	no files found

Format of NetWare request buffer:
Offset	Size	Description	(Table 1294)
 00h	BYTE	directory handle
 01h	BYTE	search attributes (see #0643 at AX=4301h)
 02h	BYTE	length of filespec
 03h  N BYTEs	ASCIZ filespec (may include wildcards)
--------N-21F257SF06-------------------------
INT 21 - Novell NetWare v3+ - GET INFORMATION ABOUT FILE OR DIRECTORY
	AX = F257h subfn 06h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1295)
	ES:DI -> reply buffer (see #1297)
Return: AL = status
	reply buffer filled

Format of NetWare request buffer:
Offset	Size	Description	(Table 1295)
 00h	BYTE	06h (subfunction "Get NS Entry Info")
 01h	BYTE	name space
 02h	BYTE	destination name space
 03h	WORD	search attributes
 05h	DWORD	return information mask (see #1296)
 09h	BYTE	volume number
 0Ah	DWORD	directory base
 0Eh	BYTE	handle flag
		00h first byte of dir base is dir handle; ignore volume number
		01h dir base = unique ID, volume number set
		FFh volume number and dir base ignored, volume part of path
 0Fh	BYTE	number of path components
 10h  N BYTEs	list of path components (each a counted string)

Bitfields for return information mask:
Bit(s)	Description	(Table 1296)
 0	include filename
 1	data stream space allocated info
 2	attributes info
 3	data stream size info
 4	total space allocated for all data streams
 5	extended attributes info
 6	archive info
 7	modify info
 8	create info
 9	name space info
 10	directory info
 11	rights info

Format of NetWare reply buffer for name space info:
Offset	Size	Description	(Table 1297)
 00h 72 BYTEs	reserved
 48h	DWORD	creator's name space number
 4Ch 257 BYTEs	reserved
--------N-21F258SF01-------------------------
INT 21 - Novell NetWare v4+ - GET VOLUME AUDITING STATISTICS
	AX = F258h subfn 01h
	CX = length of request buffer in bytes (0005h)
	DX = length of reply buffer in bytes (0020h)
	DS:SI -> request buffer (see #1298)
	ES:DI -> reply buffer (see #1299)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F268h/SF=C8h

Format of NetWare "Get Volume Auditing Statistics" request buffer:
Offset	Size	Description	(Table 1298)
 00h	BYTE	01h (function "Get Volume Auditing Statistics")
 01h	DWORD	volume
SeeAlso: #1299

Format of NetWare "Get Volume Auditing Statistics" reply buffer:
Offset	Size	Description	(Table 1299)
 00h	WORD	auditing version (date)
 02h	WORD	audit file version (date)
 04h	DWORD	auditing enabled flag
 08h	DWORD	audit file's size
 0Ch	DWORD	audit configuration file's size
 10h	DWORD	maximum audit file size
 14h	DWORD	audit file size threshold
 18h	DWORD	number of audit records
 1Ch	DWORD	number of history records
SeeAlso: #1298,#1311
--------N-21F268SF01-------------------------
INT 21 - Novell NetWare v4+ - GET TREE NAME
	AX = F268h subfn 01h
	CX = length of request buffer in bytes (0001h)
	DX = length of reply buffer in bytes (0064h)
	DS:SI -> request buffer (see #1300)
	ES:DI -> reply buffer (see #1301)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F268h/SF=04h

Format of NetWare "Get Tree Name" request buffer:
Offset	Size	Description	(Table 1300)
 00h	BYTE	01h

Format of NetWare "Get Tree Name" reply buffer:
Offset	Size	Description	(Table 1301)
 00h	DWORD	???
 04h	DWORD	???
 08h 32 BYTEs	tree name, padded with underscores ('_')
 28h 60 BYTEs	???
--------N-21F268SF04-------------------------
INT 21 - Novell NetWare v4+ - GET BINDERY CONTEXT
	AX = F268h subfn 04h
	CX = length of request buffer in bytes (0001h)
	DX = length of reply buffer in bytes 
	DS:SI -> request buffer (see #1302)
	ES:DI -> reply buffer (see #1303)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F268h/SF=01h,AX=F268h/SF=C8h

Format of NetWare "Get Bindery Context" request buffer:
Offset	Size	Description	(Table 1302)
 00h	BYTE	04h

Format of NetWare "Get Bindery Context" reply buffer:
Offset	Size	Description	(Table 1303)
 00h	DWORD	length
 04h  N WORDs	Unicode bindery context string
--------N-21F268SF16-------------------------
INT 21 - Novell NetWare v4+ - NDS LIST PARTITIONS
	AX = F268h subfn 16h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1304)
	ES:DI -> reply buffer (see #1305)
Return: AL = status
	reply buffer filled
Note:	the length specified in CX must be exactly 13 bytes more than the
	  length field at offset 09h in the request buffer for this function
	  to be successful
SeeAlso: AX=F268h/SF=35h

Format of NetWare "NDS List Partitions" request buffer:
Offset	Size	Description	(Table 1304)
 00h	BYTE	02h
 01h	DWORD	??? (FFFFFFFFh)
 05h	DWORD	??? (00000202h)
 09h	DWORD	length (00000018h)
 0Dh	DWORD	??? (00000000h)
 11h	DWORD	function (00000016h) (subfunction "NDS List Partitions")
 15h	DWORD	??? (00000400h)
 19h	DWORD	API version (00000000h)
 1Dh	DWORD	??? (00000000h)
 21h	DWORD	iteration (FFFFFFFFh)
SeeAlso: #1305,#1306

Format of NetWare "NDS List Partitions" reply buffer:
Offset	Size	Description	(Table 1305)
 00h	DWORD	length
 04h	DWORD	???
 08h	DWORD	return code
 0Ch	DWORD	iteration
 10h 1000 BYTEs	returned data
SeeAlso: #1304
--------N-21F268SF35-------------------------
INT 21 - Novell NetWare v4+ - NDS GET SERVER NAME AND ADDRESS
	AX = F268h subfn 35h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1306)
	ES:DI -> reply buffer (see #1307)
Return: AL = status
	reply buffer filled
Note:	the length specified in CX must be exactly 13 bytes more than the
	  length field at offset 09h in the request buffer for this function
	  to be successful
SeeAlso: AX=F268h/SF=16h

Format of NetWare "NDS Get Server Name and Address" request buffer:
Offset	Size	Description	(Table 1306)
 00h	BYTE	02h
 01h	DWORD	??? (FFFFFFFFh)
 05h	DWORD	??? (00000202h)
 09h	DWORD	length (0000000Ch)
 0Dh	DWORD	??? (00000000h)
 11h	DWORD	function (00000035h) (subfunc "NDS Get Server Name and Addr")
 15h	DWORD	??? (00000400h)
SeeAlso: #1304,#1307

Format of NetWare "NDS Get Server Name and Address" reply buffer:
Offset	Size	Description	(Table 1307)
 00h	DWORD	length
 04h	DWORD	???
 08h	DWORD	return code
 0Ch	DWORD	length of name
 10h  N WORDs	Unicode server name string
	var	padding
	DWORD	??? (00000001h)
	DWORD	??? (00000000h)
	DWORD	??? (0000000Ch)
     12 BYTEs	server's IPX address
SeeAlso: #1306
--------N-21F268SF3D-------------------------
INT 21 - Novell NetWare v4+ - NDS LOGOUT
	AX = F268h subfn 3Dh
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1308)
	ES:DI -> reply buffer (see #1309)
Return: AL = status
	reply buffer filled

Format of NetWare "NDS Logout" request buffer:
Offset	Size	Description	(Table 1308)
 00h	BYTE	02h
 01h	DWORD	??? (FFFFFFFFh)
 05h	DWORD	??? (00000202h)
 09h	DWORD	length (0000000Ch)
 0Dh	DWORD	??? (00000000h)
 11h	DWORD	function (0000003Dh) (subfunction "NDS Logout")
 15h	DWORD	??? (00000000h)
SeeAlso: #1309

Format of NetWare "NDS Logout" reply buffer:
Offset	Size	Description	(Table 1309)
 00h	DWORD	length
 04h	DWORD	???
 08h	DWORD	return code
SeeAlso: #1308
--------N-21F268SFC8-------------------------
INT 21 - Novell NetWare v4+ - GET DS AUDITING STATISTICS
	AX = F268h subfn C8h
	CX = length of request buffer in bytes (0001h)
	DX = length of reply buffer in bytes (0020h)
	DS:SI -> request buffer (see #1310)
	ES:DI -> reply buffer (see #1311)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F258h/SF=01h,AX=F268h/SF=01h,AX=F268h/SF=04h

Format of NetWare "Get DS Auditing Statistics" request buffer:
Offset	Size	Description	(Table 1310)
 00h	BYTE	C8h
SeeAlso: #1311

Format of NetWare "Get DS Auditing Statistics" reply buffer:
Offset	Size	Description	(Table 1311)
 00h	WORD	auditing version (date)
 02h	WORD	audit file version (date)
 04h	DWORD	auditing enabled flag
 08h	DWORD	audit file's size
 0Ch	DWORD	audit configuration file's size
 10h	DWORD	maximum audit file size
 14h	DWORD	audit file size threshold
 18h	DWORD	number of audit records
 1Ch	DWORD	number of history records
SeeAlso: #1299,#1310
--------N-21F272-----------------------------
INT 21 - Novell NetWare v4+ - GET FILE SERVER UTC TIME
	AX = F272h
	CX = length of request buffer in bytes (0003h)
	DX = length of reply buffer in bytes (0064h)
	DS:SI -> request buffer (see #1312)
	ES:DI -> reply buffer (see #1313)
Return: AL = status
	reply buffer filled

Format of NetWare "Get File Server UTC Time" request buffer:
Offset	Size	Description	(Table 1312)
 00h	BYTE	??? (00h)
 01h	BYTE	??? (01h)
 02h	BYTE	??? (01h)
SeeAlso: #1313

Format of NetWare "Get File Server UTC Time" reply buffer:
Offset	Size	Description	(Table 1313)
 00h	DWORD	seconds
 04h	DWORD	???
 04h	DWORD	??? (00000204h)
 04h	DWORD	??? (00000000h)
 04h	DWORD	??? (00000000h)
 04h	DWORD	??? (FFFFFFFFh)
 04h	DWORD	??? (00000000h)
SeeAlso: #1312
--------N-21F27BSF33-------------------------
INT 21 - Novell NetWare v4+ - GET ROUTER INFO
	AX = F27Bh subfn 33h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1314)
	ES:DI -> reply buffer (see #1315)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F27Bh/SF=35h

Format of NetWare "Get Router Info" request buffer:
Offset	Size	Description	(Table 1314)
 00h	WORD	???
 02h	BYTE	33h (function "Get Router Info")
 03h	DWORD	network number
SeeAlso: #1315

Format of NetWare "Get Router Info" reply buffer:
Offset	Size	Description	(Table 1315)
 00h	DWORD	timestamp
 04h	DWORD	???
 08h	DWORD	network number
 0Ch	WORD	hops
 0Eh	WORD	???
 10h	WORD	time
SeeAlso: #1314,#1316
--------N-21F27BSF35-------------------------
INT 21 - Novell NetWare v4+ - GET KNOWN NETWORKS INFO
	AX = F27Bh subfn 35h
	CX = length of request buffer in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request buffer (see #1316)
	ES:DI -> reply buffer (see #1317)
Return: AL = status
	reply buffer filled
SeeAlso: AX=F27Bh/SF=33h

Format of NetWare "Get Router Info" request buffer:
Offset	Size	Description	(Table 1316)
 00h	WORD	???
 02h	BYTE	35h (function "Get Known Networks Info")
 03h	DWORD	??? (00000000h)
SeeAlso: #1317

Format of NetWare "Get Router Info" reply buffer:
Offset	Size	Description	(Table 1317)
 00h	DWORD	timestamp
 04h	DWORD	???
 08h	DWORD	number of records following
 0Ch	var	array of network info records
		Offset	Size	Description
		 00h	WORD	network number
		 04h	WORD	hops
		 06h	WORD	???
		 08h	WORD	time
SeeAlso: #1314,#1316
--------v-21F2AA-----------------------------
INT 21 - VIRUS - "PcVrsDs" - INSTALLATION CHECK
	AX = F2AAh
Return: AH = AAh if resident
SeeAlso: AH=F1h"VIRUS",AH=F3h"VIRUS"
--------N-21F3-------------------------------
INT 21 - Novell NetWare - FILE SERVICES - FILE SERVER FILE COPY
	AH = F3h
	ES:DI -> request buffer (see #1318)
Return: AL = status/error code
	CX:DX = number of bytes copied
Notes:	this function is supported by Advanced NetWare 2.0+
	both source and destination must be on the same file server
SeeAlso: AH=3Ch,AH=3Fh

Format of NetWare request buffer:
Offset	Size	Description	(Table 1318)
 00h	WORD	source file handle (as returned by AH=3Ch or AH=3Dh)
 02h	WORD	destination file handle
 04h	DWORD	starting offset in source
 08h	DWORD	starting offset in destination
 0Ch	DWORD	number of bytes to copy
--------T-21F3-------------------------------
INT 21 - DoubleDOS - ADD CHARACTER TO KEYBOARD BUFFER OF CURRENT JOB
	AH = F3h
	AL = character
Return: AL = 00h successful
	     01h buffer full (128 characters)
SeeAlso: AH=E3h"DoubleDOS",AH=F1h"DoubleDOS",AH=F2h"DoubleDOS"
SeeAlso: AH=F8h"DoubleDOS"
--------v-21F3-------------------------------
INT 21 - VIRUS - "Carfield" - INSTALLATION CHECK
	AH = F3h
Return: AX = 0400h if resident
SeeAlso: AH=D5h"Carfield",AX=F2AAh,AH=F7h"VIRUS"
--------T-21F400-----------------------------
INT 21 - DoubleDOS - INSTALLATION CHECK/PROGRAM STATUS
	AX = F400h
Return: AL = program status
	    00h if DoubleDOS not present
	    01h if running in visible DoubleDOS partition
	    02h if running in the invisible DoubleDOS partition
SeeAlso: AX=E400h,AH=F5h"DoubleDOS"
--------T-21F5-------------------------------
INT 21 - DoubleDOS - OTHER PROGRAM STATUS
	AH = F5h
Return: AL = program status
	    00h no program in other partition
	    01h program in other partition is running
	    02h program in other partition is suspended
SeeAlso: AH=E5h"DoubleDOS",AX=F400h"DoubleDOS"
--------v-21F7-------------------------------
INT 21 - VIRUS - "GP1" - INSTALLATION CHECK
	AH = F7h
Return: AX = 0300h if resident
SeeAlso: AH=F0h"VIRUS",AH=FBh"VIRUS"
--------D-21F8-------------------------------
INT 21 - DOS v2.11-2.13 - SET OEM INT 21 HANDLER
	AH = F8h
	DS:DX -> OEM INT 21 handler for functions F9h to FFh
		 FFFFh:FFFFh disables OEM handler
Notes:	this function is known to be supported by Toshiba T1000 ROM MS-DOS
	  v2.11, Sanyo MS-DOS v2.11, and TI Professional Computer DOS v2.13
	calls to AH=F9h through AH=FFH will return AL=00h if no handler set
	handler is called with all registers exactly as set by caller, and
	  should exit with IRET
SeeAlso: AH=F9h"OEM"
--------T-21F8-------------------------------
INT 21 - DoubleDOS - SET/RESET KEYBOARD CONTROL FLAGS
	AH = F8h
	AL = program for which to set flags
	    00h this program
	    01h other program
	DX = keyboard control flags (see #1259 at AH=E8h"DoubleDOS")
Return: DX = previous flags
Notes:	disabling Ctrl-PrtSc will allow the program to intercept the keystroke;
	  disabling any of the other keystrokes disables them completely
	this function is identical to AH=E8h
SeeAlso: AH=E8h"DoubleDOS",AH=F1h"DoubleDOS",AH=F2h"DoubleDOS"
SeeAlso: AH=F3h"DoubleDOS"
--------D-21F9-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = F9h
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=FAh"OEM"
--------T-21F9-------------------------------
INT 21 - DoubleDOS - SET TIMESHARING PRIORITY
	AH = F9h
	AL = priority
	    00h visible program gets 70%, invisible gets 30% (default)
	    01h visible program gets 50%, invisible gets 50%
	    02h visible program gets 30%, invisible gets 70%
	    03h Top program gets 70%, bottom program gets 30%
	    04h Top program gets 30%, bottom program gets 70%
	    05h get current priority
		Return: AL = priority setting
Note:	identical to AH=E9h
SeeAlso: AH=E9h"DoubleDOS",AH=FAh"DoubleDOS",AH=FBh"DoubleDOS"
--------D-21FA-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = FAh
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=F9h"OEM",AH=FBh"OEM"
--------T-21FA-------------------------------
INT 21 - DoubleDOS - TURN OFF TASK SWITCHING
	AH = FAh
Return: task switching turned off
SeeAlso: AH=EAh"DoubleDOS",AH=F9h"DoubleDOS",AH=FBh"DoubleDOS"
SeeAlso: INT FA"DoubleDOS"
--------v-21FA--DX5945-----------------------
INT 21 U - PC Tools v7+ VDEFEND, VSAFE, VWATCH - API
	AH = FAh
	DX = 5945h
	AL = function (00h-02h for VDEFEND, 00h-07h for VSAFE and VWATCH)
Return: varies by function
Note:	this API is identical to the API on INT 13/AH=FAh and INT 16/AH=FAh,
	  so it is listed in its entirety only under INT 16/AX=FA00h and
	  following
SeeAlso: INT 13/AX=FA00h,INT 16/AX=FA00h
--------D-21FB-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = FBh
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=FAh"OEM",AH=FCh"OEM"
--------T-21FB-------------------------------
INT 21 - DoubleDOS - TURN ON TASK SWITCHING
	AH = FBh
Return: task switching turned on
SeeAlso: AH=EBh"DoubleDOS",AH=F9h"DoubleDOS",AH=FAh"DoubleDOS"
SeeAlso: INT FB"DoubleDOS"
--------v-21FB-------------------------------
INT 21 - VIRUS - "Cinderella" - INSTALLATION CHECK
	AH = FBh
Return: AH = 00h if resident
SeeAlso: AH=F7h"VIRUS",AX=FB0Ah
--------v-21FB0A-----------------------------
INT 21 - VIRUS - "dBASE" - INSTALLATION CHECK
	AX = FB0Ah
Return: AX = 0AFBh if resident
SeeAlso: AH=FBh"VIRUS",AH=FCh"VIRUS"
--------D-21FC-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = FCh
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=FBh"OEM",AH=FDh"OEM"
--------T-21FC-------------------------------
INT 21 - DoubleDOS - GET VIRTUAL SCREEN ADDRESS
	AH = FCh
Return: ES = segment of virtual screen
Desc:	Determine the address of the virtual screen to which the program
	  should write instead of the actual video memory, so that the
	  multitasked programs do not interfere with each other's output.
Notes:	screen address can change if task-switching is on!!
	identical to AH=ECh
SeeAlso: AH=ECh"DoubleDOS",INT FC"DoubleDOS"
--------v-21FC-------------------------------
INT 21 - VIRUS - "Troi" - INSTALLATION CHECK
	AH = FCh
Return: AL = A5h if resident
SeeAlso: AX=FB0Ah"VIRUS",AH=FDh"VIRUS"
--------D-21FD-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = FDh
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=FCh"OEM",AH=FEh"OEM"
--------v-21FD-------------------------------
INT 21 - VIRUS - "Border" - INSTALLATION CHECK
	AH = FDh
Return: AH = 13h if resident
SeeAlso: AH=FCh"VIRUS",AH=FEh"VIRUS"
--------s-21FD12BX3457-----------------------
INT 21 - Gravis UltraSound - MegaEm - INSTALLATION CHECK
	AX = FD12h
	BX = 3457h
Return: AX = 5678h if installed
	BX = 1235h if installed
	    CL = interrupt vector used by MegaEm (default 81h)
Program: MegaEm is a protected-mode SoundBlaster, SoundCanvas, and MT-32
	  emulator for the Gravis UltraSound
SeeAlso: INT 2F/AX=CD00h/BX=464Fh,INT 7E/AX=00FEh"SBOS"
--------D-21FE-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = FEh
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=FDh"OEM",AH=FFh"OEM"
--------T-21FE-------------------------------
INT 21 - DoubleDOS - GIVE AWAY TIME TO OTHER TASKS
	AH = FEh
	AL = number of 55ms time slices to give away
Return: returns after giving away time slices
SeeAlso: AH=EEh"DoubleDOS",INT FE"DoubleDOS"
--------v-21FE-------------------------------
INT 21 - VIRUS - "483" - INSTALLATION CHECK
	AH = FEh
Return: AH = 00h if resident
SeeAlso: AH=FDh"VIRUS",AX=FE01h
--------v-21FE01-----------------------------
INT 21 - VIRUS - "Flip" - INSTALLATION CHECK
	AX = FE01h
Return: AX = 01FEh if resident
SeeAlso: AH=FEh"VIRUS",AX=FE02h
--------v-21FE02-----------------------------
INT 21 - VIRUS - "2468"/"Tequila" - INSTALLATION CHECK
	AX = FE02h
Return: AX = 01FDh if resident
SeeAlso: AX=FE01h,AX=FE03h,AX=FEDCh"VIRUS"
--------v-21FE03-----------------------------
INT 21 - VIRUS - "2468"/"Tequila" - DISPLAY VIRUS MESSAGE
	AX = FE03h
SeeAlso: AX=FE02h
--------d-21FEDC-----------------------------
INT 21 - PCMag PCMANAGE/DCOMPRES - INSTALLATION CHECK
	AX = FEDCh
Return: AX = CDEFh if installed
Program: the PCMANAGE/DCOMPRES combination from PC Magazine permits
	  infrequently-used files to be compressed to save space and
	  transparently expanded when accessed
SeeAlso: AH=DCh,INT 2D/AL=10h"dLite"
--------v-21FEDC-----------------------------
INT 21 - VIRUS - "Black Monday" - INSTALLATION CHECK
	AX = FEDCh
Return: AL = DCh if resident
SeeAlso: AX=FE02h,AX=FEFEh
--------v-21FEFE-----------------------------
INT 21 - VIRUS - "CIDER" - INSTALLATION CHECK
	AX = FEFEh
Return: SI = 1994h if resident
SeeAlso: AX=FEDCh"VIRUS",AH=FFh"VIRUS"
--------D-21FF-------------------------------
INT 21 - DOS v2.11-2.13 - OEM FUNCTION
	AH = FFh
Return: AL = 00h if no OEM function handler installed (see AH=F8h"OEM")
SeeAlso: AH=F8h"OEM",AH=FEh"OEM"
--------K-21FF-------------------------------
INT 21 - CED (Command EDitor) - INSTALLABLE COMMANDS
	AH = FFh
	AL = subfunction
	    00h add installable command
		BL = mode
		    bit 0 = 1 callable from DOS prompt
			 bit 1 = 1 callable from application
		DS:SI -> CR-terminated command name
		ES:DI -> FAR routine entry point
	    01h remove installable command
		DS:SI -> CR-terminated command name
	    02h reserved, may be used to test for CED installation
Return: CF clear if successful
	CF set on error
	    AX = error code
		01h invalid function
		02h command not found (subfunction 01h only)
		08h insufficient memory (subfunction 00h only)
		0Eh bad data (subfunction 00h only)
	AH = FFh if CED not installed
Program: CED is a shareware DOS command-line enhancer by Christopher J. Dunford
SeeAlso: AX=0A00h
--------E-21FF-------------------------------
INT 21 - DJ GO32.EXE 80386+ DOS extender - DOS EXTENSIONS
	AH = FFh
	AL = function
	    01h create file
	    02h open file
	    03h get file statistics
		 04h get time of day
	    05h set time of day
	    06h stat
	    07h system
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
SeeAlso: INT 10/AH=FFh"GO32"
--------K-21FF-------------------------------
INT 21 - DOSED.COM - INSTALLATION CHECK
	AH = FFh
	DS:SI -> "DOSED"
	ES = 0000h
Return: ES:DI -> "DOSED" if installed
Program: DOSED is a free DOS commandline editor/history buffer by Sverre H.
	  Huseby
--------v-21FF-------------------------------
INT 21 - VIRUS - "Sunday", "Tumen 0.5", "Hero" - INSTALLATION CHECK
	AH = FFh
Return: AH = 00h if "Tumen 0.5" or "Hero" resident
	AX = 0400h if "Sunday" resident
SeeAlso: AX=FEDCh"VIRUS",AX=FF0Fh
--------E-21FF-------------------------------
INT 21 UP - Rational Systems DOS/4GW - API
	AH = FFh
	DH = function (00h-17h) (see also separate entries below)
	DL = subfunction or argument
Return: CF clear if valid function number
	    AX = status???
	CF set if invalid function
SeeAlso: INT 15/AX=BFDCh
--------E-21FF--DH00-------------------------
INT 21 UP - Rational Systems DOS/4GW - VERSION CHECK???
	AH = FFh
	DH = 00h
	DL = ??? (78h seen)
Return: CF clear
	EAX = 4734FFFFh (high word is byte-swapped "4G") if DOS/4G installed   
Note:	Quarterdeck's DESQview/X X Toolkit library uses this call to determine
	  whether the direct-mapped linear 4GB segment's selector is 34h or 38h
SeeAlso: INT 21/AH=FFh"DOS/4GW"
--------E-21FF--DH02-------------------------
INT 21 UP - Rational Systems DOS/4GW - SET ???
	AH = FFh
	DH = 02h
	DL = ???
Return: CF clear
--------E-21FF--DH05-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 05h
	BX = ???
Return: ???
--------E-21FF--DH06-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 06h
	BX = ???
Return: ???
--------E-21FF--DH07-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 07h
	BX = ???
Return: ???
--------E-21FF--DH08-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 08h
	BX = ???
	CX = ???
	ES = ???
Return: ???
--------E-21FF--DH09-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET ???
	AH = FFh
	DH = 09h
Return: ES:BX -> ???
--------E-21FF--DH0A-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 0Ah
	AL = ???
	BX = ???
	CX = ???
Return: ES = ??? or 0000h
--------E-21FF--DH0B-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 0Bh
	AL = ???
	BX = ???
	CX = ???
Return: ???
--------E-21FF--DH0C-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET/SET ???
	AH = FFh
	DH = 0Ch
	DL = ??? (00h or 01h)
Return: CF clear if successful
	    AL = previous value of ???
	CF set on error (DL out of range)
	    AX = FFFFh
--------E-21FF--DH0D-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 0Dh
	???
Return: ???
--------E-21FF--DH0E-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 0Eh
Return: DX:AX -> XBRK structure (see #0382 at INT 15/AX=BF02h)
	BX = ???
	CX = ???
SeeAlso: INT 15/AX=BF02h
--------E-21FF--DH0F-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 0Fh
	???
Return: ???
--------E-21FF--DH10-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 10h
	AL = ???
	BX = ???
	CX = ???
	DI = ???
	SI = ???
Return: ???
Note:	among other things, frees two memory blocks via INT 21/AH=49h
--------E-21FF--DH11-------------------------
INT 21 UP - Rational Systems DOS/4GW - NOP
	AH = FFh
	DH = 11h
--------E-21FF--DH12-------------------------
INT 21 UP - Rational Systems DOS/4GW - EXCHANGE ??? POINTERS
	AH = FFh
	DH = 12h
	DS:SI -> new ???
	ES:DI -> new ???
Return: DS:SI -> previous ???
	ES:DI -> previous ???
--------E-21FF--DH13-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 13h
	AL = ???
	ES = ???
Return: ???
--------E-21FF--DH14-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 14h
	BX = ???
	CX = ???
Return: CF clear
	    AX = ???
	    DX = ???
--------E-21FF--DH15-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET ??? FUNCTIONS
	AH = FFh
	DH = 15h
Return: CF clear
	    DX:AX -> FAR function for ???
	    CX:BX -> FAR function for ???
	    SI:DI -> FAR function for ???
--------E-21FF--DH16-------------------------
INT 21 UP - Rational Systems DOS/4GW - GET ???
	AH = FFh
	DH = 16h
Return: AX = ???
--------E-21FF--DH17-------------------------
INT 21 UP - Rational Systems DOS/4GW - ???
	AH = FFh
	DH = 17h
	AL = ???
	DL = ???
Return: ???
--------N-21FF00-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET SYSTEM INFORMATION
	AX = FF00h
	CL = what to get
	    00h user information (see #1319)
	    01h drive mapping (see #1320)
	    02h printer server(s)
	    05h local DOS drive number
Return: ES:BX -> desired information
Program: TopWare Network Operating System is manufactured by Grand Computer
	  Company
Note:	this call is only supported on Workstations, not on the server
SeeAlso: AX=FF04h,INT 2F/AX=FF00h

Format of TopWare user information:
Offset	Size	Description	(Table 1319)
 00h	BYTE	node ID
 01h 15 BYTEs	user name
 10h	WORD	user number
 12h	BYTE	group number

Format of TopWare drive mapping [array]:
Offset	Size	Description	(Table 1320)
 00h	BYTE	bits 6-0: drive number (1=A:, etc.)
		bit 7: this is a server drive
 01h  3 BYTEs	mapping drive (for example, "C:\")
 04h 64 BYTEs	current directory
--------E-21FF00DX0078-----------------------
INT 21 - Rational Systems DOS/4G - INSTALLATION CHECK
	AX = FF00h
	DX = 0078h
Return: AL <> 00h if installed
	    GS = segment of kernel if nonzero
SeeAlso: INT 15/AX=BF02h
--------N-21FF04-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET/SET DEFAULT FILE PROTECTION ATTRIBS
	AX = FF04h
	CL = function
	    00h get protections
		Return: BH = read attribute
			BL = write attribute
	    01h set protections
		BH = read attribute
		BL = write attribute
Note:	this function is supported only on Workstations, not on the server
SeeAlso: AX=FF00h"TopWare"
--------v-21FF0F-----------------------------
INT 21 - FLU_SHOT+ v1.83 - INSTALLATION CHECK
	AX = FF0Fh
Return: AX = 0101h if resident
Program: FLU_SHOT+ is an antivirus/antitrojan program by Ross M. Greenberg and
	  Software Concepts Design
Note:	the "PSQR/1720" virus calls this function to determine whether
	  FLU_SHOT+ is present
SeeAlso: AH=FFh"VIRUS",AX=FF10h
--------v-21FF10-----------------------------
INT 21 - VIRUS - "Twins" - INSTALLATION CHECK
	AX = FF10h
Return: AL = 07h if resident
SeeAlso: AX=FF0Fh,AX=FFFEh
--------N-21FF80DHFF-------------------------
INT 21 - TopWare Network OS v5.10+ - SEND MESSAGE
	AX = FF80h
	DH = FFh
	DL = destination address (FFh for broadcast)
	CX = message length (max 2000)
	DS:SI -> message to be sent (see #1321)
Return: nothing
Program: TopWare Network Operating System is manufactured by Grand Computer
	  Company
Notes:	this function is supported on both Workstations and the server
	there is no guarantee that the message will be received correctly, or
	  at all, by the destination

Format of TopWare message:
Offset	Size	Description	(Table 1321)
 00h	BYTE	type code
		07h TopSend
		11h user application
		other reserved for TopWare
 01h	var	data
Note:	sending messages with a type code other than 11h will cause
	  unpredictable results
--------N-21FF82-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET STATION ADDRESS
	AX = FF82h
Return: AL = station address
Note:	this function is supported on both Workstations and the server
SeeAlso: AX=FF91h
--------N-21FF8C-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET STATUS OF TopShow/Emulated FUNCTION
	AX = FF8Ch
	BL = subfunction
	    00h get TopShow status
	    FFh get Emulated status
Return: AL = status
	    00h not installed
	    01h already installed
--------N-21FF8D-----------------------------
INT 21 - TopWare Network OS v5.10+ - CALL TopShow FUNCTION
	AX = FF8Dh
	CH = monochrome flag (01h monochrome, 00h not monochrome)
	CL = screen mode of station to be viewed (see #1322)
	BL = graphic page number for monochrome
Return: AL = status (00h successful, else failed)
SeeAlso: AX=FF8Eh,AX=FFCFh

(Table 1322)
Values for TopWare screen mode:
 00h	text mode
 01h	720x348
 02h	640x408
 03h	720x352
 04h	640x390
 05h	reserved
--------N-21FF8E-----------------------------
INT 21 - TopWare Network OS v5.10+ - CANCEL TopShow FUNCTION
	AX = FF8Eh
Return: AL = 00h (successful, TopShow removed)
SeeAlso: AX=FF8Dh
--------N-21FF91-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET FILE SERVER STATION NUMBER
	AX = FF91h
Return: AL = station number of file server
SeeAlso: AX=FF82h
--------N-21FF97-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET MAXIMUM STATION NUMBER (server only)
	AX = FF97h
Return: AL = maximum station number
SeeAlso: AX=FF98h
--------N-21FF98-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET MAXIMUM FILE NUMBER (server only)
	AX = FF98h
Return: AL = maximum file
SeeAlso: AX=FF97h
--------N-21FF9A-----------------------------
INT 21 - TopWare Network OS v5.10+ - RECEIVE OF USER-DEFINED PACKETS
	AX = FF9Ah
	ES:BX -> buffer for user-defined packet (see #1323)
Return: nothing

Format of TopWare user-defined packet:
Offset	Size	Description	(Table 1323)
 00h	BYTE	FFh
 01h	WORD	(call) length of data field plus 3
		(ret) length of received message (0000h if none received)
 03h	BYTE	destination ID (FFh for broadcast message)
 04h	BYTE	sending station ID
 05h	BYTE	type code (11h; all other codes reserved for TopWare)
 06h  N BYTEs	received message
--------N-21FF9F-----------------------------
INT 21 - TopWare Network OS v5.10+ - ENABLE/DISABLE TopTerm SERVICE
	AX = FF9Fh
	CL = new state (00h disable [disregard TopTerm packets], 01h enable)
Return: AL = status (00h successful, FFh failed)
Note:	this function is only supported by Workstations, not the server
--------N-21FFB0-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET SPOOLER PRINTING PRIORITY
	AX = FFB0h
Return: AL = priority status (see #1324)
SeeAlso: AX=FFB1h

Bitfields for TopWare printer priority status:
Bit(s)	Description	(Table 1324)
 2	LPT3 has high priority
 1	LPT2 has high priority
 0	LPT1 has high priority
--------N-21FFB1-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET SPOOLER PRINTING PRIORITY
	AX = FFB1h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CH = new priority (00h normal, 01h high)
Return: nothing
SeeAlso: AX=FFB0h
--------N-21FFB3-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET DEFAULT START-OF-JOB FORMFEED STATUS
	AX = FFB3h
Return: AL = starting formfeed status (see #1325)
SeeAlso: AX=FFB4h,AX=FFC0h

Bitfields for TopWare printer start-of-job formfeed status:
Bit(s)	Description	(Table 1325)
 2	LPT3 has formfeed enabled
 1	LPT2 has formfeed enabled
 0	LPT1 has formfeed enabled
--------N-21FFB4-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET DEFAULT START-OF-JOB FORMFEED STATUS
	AX = FFB4h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CH = new formfeed status (00h off, 01h on)
Return: nothing
SeeAlso: AX=FFB3h,AX=FFC1h
--------N-21FFBB-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET PRINTER SERVER STATION ADDRESS
	AX = FFBBh
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
Return: AL = current mapping printer server station number
	    00h if local
SeeAlso: AX=FFBCh
--------N-21FFBC-----------------------------
INT 21 - TopWare Network OS v5.10+ - CANCEL TopShow FUNCTION
	AX = FFBCh
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CL = printer server station address or 00h for local printer
Return: AL = status (00h successful, else failed)
SeeAlso: AX=FFBBh
--------N-21FFBD-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET CURRENT AUTOPRINT TIME
	AX = FFBDh
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
Return: AX = current AutoPrint timeout in clock ticks
SeeAlso: AX=FFBEh
--------N-21FFBE-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET AUTOPRINT TIME
	AX = FFBEh
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	BX = timeout in clock ticks
SeeAlso: AX=FFBDh
--------N-21FFBF-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET LOGON USER INFORMATION
	AX = FFBFh
	DX:BX -> buffer for logon information (see #1326)
Return: AL = status (00h successful, else failed)
	AH = number of logged-in stations

Format of TopWare logon information:
Offset	Size	Description	(Table 1326)
 00h	BYTE	station address
 01h 15 BYTEs	username
--------N-21FFC0-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET DEFAULT END-OF-JOB FORMFEED STATUS
	AX = FFC0h
Return: AL = ending formfeed status (see #1327)
SeeAlso: AX=FFB3h,AX=FFC1h

Bitfields for TopWare printer end-of-job formfeed status:
Bit(s)	Description	(Table 1327)
 2	LPT3 has formfeed enabled
 1	LPT2 has formfeed enabled
 0	LPT1 has formfeed enabled
--------N-21FFC1-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET DEFAULT END-OF-JOB FORMFEED STATUS
	AX = FFC1h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CH = new formfeed status (00h off, 01h on)
Return: nothing
SeeAlso: AX=FFB4h,AX=FFC0h
--------N-21FFC2-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET DEFAULT COPIES OF SPOOLING FILE
	AX = FFC2h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
Return: AL = default number of copies printed
SeeAlso: AX=FFC7h
--------N-21FFC3-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET SHARING STATUS OF PRINTER SERVER
	AX = FFC3h
Return: AL = sharing status of printers (see #1328)
	    FFh if not a printer server

Bitfields for TopWare printer sharing status:
Bit(s)	Description	(Table 1328)
 2	LPT3 is shared
 1	LPT2 is shared
 0	LPT1 is shared
--------N-21FFC4-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET/SET LPT PORT ON PRINT SERVER
	AX = FFC4h
	BL = subfunction
	    00h get
		Return: AL = mapped printer port on print server
	    01h set
		CL = network printer port (00h LPT1, 01h LPT2, 02h LPT3)
	CH = local printer (00h LPT1, 01h LPT2, 02h LPT3)
--------N-21FFC6-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET DEFAULT PRINT FILE HEADER
	AX = FFC6h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CL = header state (00h off, 01h on)
SeeAlso: AX=FFC8h
--------N-21FFC7-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET DEFAULT PRINT COPIES
	AX = FFC7h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CL = new default number of copies to print
SeeAlso: AX=FFC2h
--------N-21FFC8-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET DEFAULT PRINT FILE HEADER STATUS
	AX = FFC8h
Return: AL = header status for printers (see #1329)
SeeAlso: AX=FFC6h

Bitfields for TopWare print header status:
Bit(s)	Description	(Table 1329)
 2	LPT3 has headers enabled
 1	LPT2 has headers enabled
 0	LPT1 has headers enabled
--------N-21FFC9-----------------------------
INT 21 - TopWare Network OS v5.10+ - SET PRINTER SHARING
	AX = FFC9h
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CL = new sharing state (00h off, 01h on)
Return: AL = status (00h successful, FFh not printer server)
--------N-21FFCA-----------------------------
INT 21 - TopWare Network OS v5.10+ - MOVE FILE FROM ONE PRINT SERVER TO ANOTHER
	AX = FFCAh
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CL = original printer server station address
	BL = target printer server station address
	DS:DX -> filename (12 bytes)
Return: AL = status (00h successful, else failed)
SeeAlso: AX=FFCBh
--------N-21FFCB-----------------------------
INT 21 - TopWare Network OS v5.10+ - DELETE FILE FROM SPOOLING QUEUE
	AX = FFCBh
	CH = printer number (00h LPT1, 01h LPT2, 02h LPT3)
	CL = printer server station address
	DS:DX -> filename (12 bytes)
Return: AL = status (00h successful, else failed)
SeeAlso: AX=FFCAh
--------N-21FFCC-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET PRINT SERVER'S SPOOLING QUEUE STATUS
	AX = FFCCh
	CL = printer server station address
	BH = start item number of spooling file for print server
	BL = number of the item to be retrieved
	DS:DX -> buffer for queued file information (see #1330)
Return: AL = status
	    00h successful
		AH = number of spool files
		DS:DX buffer filled
	    nonzero failed

Format of TopWare queued file information buffer [16-item array, one element]:
Offset	Size	Description	(Table 1330)
 00h 12 BYTEs	filename
 0Ch	DWORD	size
 10h	WORD	date
 12h	WORD	time
 14h 15 BYTEs	username
 23h	BYTE	count
 24h	BYTE	flag: header
 25h	BYTE	print number
--------N-21FFCD-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET STATUS OF ALL PRINT SERVERS
	AX = FFCDh
	DS:DX -> buffer for server status (see #1331)
Return: AL = status
	    00h successful
		AH = number of print servers
	    nonzero failed

Format of TopWare server status:
Offset	Size	Description	(Table 1331)
 00h	BYTE	station address
 01h 15 BYTEs	username
 10h	BYTE	flag: 01h printer is shared, 00h sharing disabled
 11h	BYTE	number of files pending in queue
--------N-21FFCF-----------------------------
INT 21 - TopWare Network OS v5.10+ - CALL TopLook FUNCTION
	AX = FFCFh
	DH = page number (0-2, 2 is text mode)
	DL = type
	    00h look at specific screen
	    01h AutoLook on
	    FFh AutoLook off
	BH = station number wishing to look
	BL = station number to be looked at
	CH = monochrome flag (01h monochrome, 00h not monochrome)
	CL = screen mode (see #1322)
Return: AL = status (00h successful, nonzero failed)
SeeAlso: AX=FF8Dh
--------N-21FFD6-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET KEYCARD SERIAL NUMBER AND MAX USERS
	AX = FFD6h
	ES:BX -> 12-byte buffer for keycard serial number
Return: CX = maximum number of users
	ES:BX buffer filled
--------N-21FFD7-----------------------------
INT 21 - TopWare Network OS v5.10+ - GET NETWORK PROTECTION ATTRIBUTES STATUS
	AX = FFD7h
Return: AL = status (00h disabled, 01h enabled)
--------N-21FFE3DL00-------------------------
INT 21 - TopWare Network OS v5.10+ - INITIATE ACCESS TO SPECIFIC PACKET TYPE
	AX = FFE3h
	DL = 00h
	BX = packet type for Ethernet header (IP = 0800h, ARP = 0806h, etc.)
	ES:DI -> receive routine (see #1333)
Return: CF clear if successful
	    AX = handle number
	CF set on error
	    DH = error code (03h,05h,09h,0Ah,11h) (see #1332)
SeeAlso: AX=FFE3h/DL=01h

(Table 1332)
Values for TopWare error code:
 01h	invalid handle
 03h	no interfaces of the specified type found
 05h	bad packet type
 09h	insufficient space
 0Ah	type already being accessed
 0Ch	unable to send packet (usually hardware error)
 11h	invalid function

(Table 1333)
Values TopWare receive routine is called with:
	AX = function
	    0000h request packet buffer
		CX = packet size
		Return: ES:DI -> buffer or 0000h:0000h to discard packet
	    0001h packet copied
		CX = packet size
		DS:SI -> copied packet (same as returned ES:DI above)
--------N-21FFE3DL01-------------------------
INT 21 - TopWare Network OS v5.10+ - END ACCESS TO SPECIFIC PACKET TYPE
	AX = FFE3h
	DL = 01h
	BX = handle returned by AX=FFE3h/DL=00h
Return: CF clear if successful
	CF set on error
	    DH = error code (01h,11h) (see #1332)
Note:	the specified access handle will no longer be valid after this call
SeeAlso: AX=FFE3h/DL=00h
--------N-21FFE3DL02-------------------------
INT 21 - TopWare Network OS v5.10+ - SEND PACKET
	AX = FFE3h
	DL = 02h
	CX = length of data buffer
	DS:SI -> buffer containing data
Return: CF clear if successful
	CF set on error
	    DH = error code (0Ch,11h) (see #1332)
--------N-21FFE3DL03-------------------------
INT 21 - TopWare Network OS v5.10+ - GET LOCAL NETWORK INTERFACE ADDRESS
	AX = FFE3h
	DL = 03h
	ES:DI -> 6-byte buffer for address
SeeAlso: AX=FFE3h/DL=00h
--------v-21FFFE-----------------------------
INT 21 - VIRUS - "08/15"/"Many Fingers" - INSTALLATION CHECK
	AX = FFFEh
Return: AX = 0815h if resident
SeeAlso: AX=FF10h,AX=FFFFh
--------v-21FFFF-----------------------------
INT 21 - VIRUS - "Ontario", "Year 1992"/"B1M92" - INSTALLATION CHECK
	AX = FFFFh
Return: AX = 0000h if "Ontario" resident
	AX = 1992h if "Year 1992"/"B1M92" resident
SeeAlso: AX=FF0Fh,AX=FFFFh/CX=0000h,INT 6B"VIRUS"
--------v-21FFFFCX0000-----------------------
INT 21 - VIRUS - "Revenge" - INSTALLATION CHECK
	AX = FFFFh
	CX = 0000h
Return: CX = 0006h if resident
SeeAlso: AX=FFFFh,INT 6B"VIRUS"
--------D-22---------------------------------
INT 22 - DOS 1+ - PROGRAM TERMINATION ADDRESS
Desc:	this vector specifies the address of the routine which is to be given
	  control after a program is terminated; it should never be called
	  directly, since it does not point at an interrupt handler
Notes:	this vector is restored from the DWORD at offset 0Ah in the PSP during
	  termination, and then a FAR JMP is performed to the address in INT 22
	normally points at the instruction immediately following INT 21/AH=4Bh
	  call which loaded the current program
SeeAlso: INT 20,INT 21/AH=00h,INT 21/AH=31h,INT 21/AH=4Ch
--------G-22---------------------------------
INT 22 - COMTROL HOSTESS i/ISA DEBUGGER - CHANGE FIRMWARE DEBUGGING PORT
	AL = new firmware debugging port
Return: ???
SeeAlso: INT 21"COMTROL",INT 23"COMTROL"
--------D-23---------------------------------
INT 23 - DOS 1+ - CONTROL-C/CONTROL-BREAK HANDLER
---DOS 1.x---
Return: AH = 00h abort program
	if all registers preserved, restart DOS call
---DOS 2+---
	CF clear
Return: all registers preserved
	return via RETF with CF set or (MS-DOS 1,DR-DOS) RETF 2 with CF set
	    DOS will abort program with errorlevel 0
	else (RETF/RETF 2 with CF clear or IRET with CF ignored)
	    interrupted DOS call is restarted
Notes:	this interrupt is invoked whenever DOS detects a ^C or ^Break; it
	  should never be called directly
	MS-DOS 1.25 also invokes INT 23 on a divide overflow (INT 00)
	MS-DOS remembers the stack pointer before calling INT 23, and if it is
	  not the same on return, pops and discards the top word; this is what
	  permits a return with RETF as well as IRET or RETF 2
	MS-DOS 2.1+ ignores the returned CF if SP is the same on return as it
	  was when DOS called INT 23, so RETF 2 will not terminate the program
	Novell DOS 7 always pops a word if CF is set on return, so one should
	  not return with RETF 2 and CF set or IRET with the stored flags' CF
	  set
	any DOS call may safely be made within the INT 23 handler, although
	  the handler must check for a recursive invocation if it does
	  call DOS
SeeAlso: INT 1B
--------G-23---------------------------------
INT 23 - COMTROL HOSTESS i/ISA DEBUGGER - GET CONFIGURATION INFORMATION
	AL = query type
	    00h get old config map
		Return: AX = old config map
	    01h get dual-ported RAM map
		Return: BX:AX = dual-ported RAM map
	    02h get SCC port map
		Return: BX:AX = SCC port map
SeeAlso: INT 22"COMTROL",INT 26"COMTROL"
--------D-24---------------------------------
INT 24 C - DOS 1+ - CRITICAL ERROR HANDLER
Notes:	invoked when a critical (usually hardware) error is encountered by DOS
	  (see #1334); should never be called directly
	when DOS terminates a program, it copies the previous value of the
	  INT 24 vector out of the PSP (see #0603) and into the interrupt
	  vector table
SeeAlso: INT 21/AH=95h

(Table 1334)
Values critical error handler is called with:
	AH = type and processing flags (see #1335)
	AL = drive number if AH bit 7 clear
	BP:SI -> device driver header (BP:[SI+4] bit 15 set if char device)
	DI low byte contains error code if AH bit 7 set (see #1336)
	STACK:	DWORD	return address for INT 24 call
		WORD	flags pushed by INT 24
		WORD	original AX on entry to INT 21
		WORD	BX
		WORD	CX
		WORD	DX
		WORD	SI
		WORD	DI
		WORD	BP
		WORD	DS
		WORD	ES
		DWORD	return address for INT 21 call
		WORD	flags pushed by INT 21
Return:	AL = action code (see #1337)
	SS,SP,DS,ES,BX,CX,DX preserved
Notes:	the only DOS calls the handler may make are INT 21/AH=01h-0Ch,30h,59h
	if the handler returns to the application by popping the stack, DOS
	  will be in an unstable state until the first call with AH > 0Ch
	for DOS 3.1+, IGNORE (AL=00h) is turned into FAIL (AL=03h) on network
	  critical errors
	if IGNORE specified but not allowed, it is turned into FAIL
	if RETRY specified but not allowed, it is turned into FAIL
	if FAIL specified but not allowed, it is turned into ABORT
	(DOS 3+) if a critical error occurs inside the critical error handler,
	  the DOS call is automatically failed (AL set to 03h and the INT 24
	  call skipped)

Bitfields for critical error type and processing flags:
Bit(s)	Description	(Table 1335)
 7	clear = disk I/O error
	set   = -- if block device, bad FAT image in memory
		-- if char device, error code in DI
 6	unused
 5	Ignore allowed (DOS 3+)
 4	Retry allowed (DOS 3+)
 3	Fail allowed (DOS 3+)
 2-1	disk area of error
	00 = DOS area	01 = FAT
	10 = root dir	11 = data area
 0	set if write, clear if read

(Table 1336)
Values for critical error code:
 00h	write-protection violation attempted
 01h	unknown unit for driver
 02h	drive not ready
 03h	unknown command given to driver
 04h	data error (bad CRC)
 05h	bad device driver request structure length
 06h	seek error
 07h	unknown media type
 08h	sector not found
 09h	printer out of paper
 0Ah	write fault
 0Bh	read fault
 0Ch	general failure
 0Dh	(DOS 3+) sharing violation
 0Eh	(DOS 3+) lock violation
 0Fh	invalid disk change
 10h	(DOS 3+) FCB unavailable
 11h	(DOS 3+) sharing buffer overflow
 12h	(DOS 4+) code page mismatch
 13h	(DOS 4+) out of input
 14h	(DOS 4+) insufficient disk space

(Table 1337)
Values for critical error handler action code:
 00h	ignore error and continue processing request
 01h	retry operation
 02h	terminate program as though INT 21/AH=4Ch called (INT 20h for DOS 1.x)
 03h	fail system call in progress
--------D-25---------------------------------
INT 25 - DOS 1+ - ABSOLUTE DISK READ (except partitions > 32M)
	AL = drive number (00h = A:, 01h = B:, etc)
	CX = number of sectors to read (not FFFFh)
	DX = starting logical sector number (0000h - highest sector on drive)
	DS:BX -> buffer for data
Return: CF clear if successful
	CF set on error
	    AH = status (see #1338)
		 AL = error code (same as passed to INT 24 in DI)
	    AX = 0207h if more than 64K sectors on drive -- use new-style call
	may destroy all other registers except segment registers
Notes:	original flags are left on stack, and must be popped by caller
	this call bypasses the DOS filesystem
	examination of CPWIN386.CPL indicates that if this call fails with
	  error 0408h on an old-style (<32m) call,="" one="" should="" retry="" the="" call="" with="" the="" high="" bit="" of="" the="" drive="" number="" in="" al="" set="" novell="" dos="" 7="" decides="" whether="" the="" old-style="" or="" new-style="" (="">32M) version
	  of INT 25 must be used solely on the basis of the partition's size,
	  thus forcing use of the new-style call even for data in the first
	  32M of the partition
BUGS:	DOS 3.1 through 3.3 set the word at ES:[BP+1Eh] to FFFFh if AL is an
	  invalid drive number
	DR-DOS 3.41 will return with a jump instead of RETF, leaving the
	  wrong number of bytes on the stack; use the huge-partition version
	  (INT 25/CX=FFFFh) for all partition sizes under DR-DOS 3.41
SeeAlso: INT 13/AH=02h,INT 25/CX=FFFFh,INT 26

(Table 1338)
Values for disk I/O status:
 80h	device failed to respond (timeout)
 40h	seek operation failed
 20h	controller failed
 10h	data error (bad CRC)
 08h	DMA failure
 04h	requested sector not found
 03h	write-protected disk (INT 26 only)
 02h	bad address mark
 01h	bad command
--------D-25----CXFFFF-----------------------
INT 25 - DOS 3.31+ - ABSOLUTE DISK READ (>32M hard-disk partition)
	CX = FFFFh
	AL = drive number (0=A, 1=B, etc)
	DS:BX -> disk read packet (see #1339)
Return: CF clear if successful
	CF set on error
	    AH = status (see #1338)
	    AL = error code (same as passed to INT 24 in DI)
	    AX = 0207h if more than 64K sectors on drive -- use new-style call
	may destroy all other registers except segment registers
Notes:	partition is potentially >32M (and requires this form of the call) if
	  bit 1 of the device attribute word in the device driver is set
	original flags are left on stack, and must be removed by caller
	this call bypasses the DOS filesystem
SeeAlso: INT 13/AH=02h,INT 25,INT 26/CX=FFFFh

Format of disk read packet:
Offset	Size	Description	(Table 1339)
 00h	DWORD	sector number
 04h	WORD	number of sectors to read
 06h	DWORD	transfer address
--------k-25CDCD-----------------------------
INT 25 - Stacker - GET DEVICE DRIVER ADDRESS
	AX = CDCDh
	DS:BX -> buffer for address (see #1340)
	CX = 0001h
	DX = 0000h
Return: AX = CDCDh if Stacker installed
	    DS:BX buffer filled
Note:	not supported by Stacker Anywhere; to obtain the Stacker device
	  driver address and to detect drives controlled by all versions
	  of Stacker, INT 21/AX=4404h"Stacker" or lookup via the CDS and DPB
	  should be preferred (see INT 21/AH=52h)
	Stacker Anywhere does not link its built-in device driver into
	  the standard device driver chain, but it can be found via CDS/DPB
SeeAlso: INT 21/AX=4404h"Stacker"

Format of Stacker v2+ driver address buffer:
Offset	Size	Description	(Table 1340)
 00h	WORD	signature CDCDh
 02h	WORD	??? 0001h
 04h	DWORD	pointer to Stacker signature at device driver offset 1Ah
		  (see #1341)

Format of Stacker v2+ device driver:
Offset	Size	Description	(Table 1341)
 00h	DWORD	pointer to next driver, offset=FFFFh if last driver
		FFFFh:FFFFh for Stacker Anywhere
 04h	WORD	device attributes (see #0859,#0860)
 06h	WORD	device strategy entry point
 08h	WORD	device interrupt entry point
 0Ah	BYTE	number of subunits (drives) supported by driver
		0 for Stacker Anywhere
 0Bh  7 BYTEs	signature "STAC-CD" for Stacker and Stacker Anywhere
 12h  7 BYTEs	???
 19h	BYTE	always = 01h ?? (Stacker Anywhere points here)
 1Ah	WORD	signature A55Ah (all other Stacker versions point here)
 1Ch	WORD	Stacker version * 64h
		0C8h = 200, 012Ch = 300, 0190h = 400 (also Stacker Anywhere)
 1Eh	WORD	offset of volume-specific information offset table
		(list of WORDs, one per drive, containing offsets to various
		  information)
 20h 56 BYTEs	n/a
 58h	BYTE	volume number, set after INT 21/AX=4404h, INT 21/AX=4408h
		(use to index into volume-specific info offset table,
		should be set to FFh before and tested for change after)
 59h 19 BYTEs	n/a
 6Ch  4 BYTEs	ASCII string "SWAP"
 70h 26 BYTEs	drive mapping table (one byte for each drive A: through Z:)
		(only used for drives swapped by SSWAP.COM; other drives
		compressed by Stacker can be found with the standard device
		driver header signature (see INT 21/AH=52h)
---Stacker 4, Stacker Anywhere---
 8Ah 40	BYTEs	???
 B2h  4 BYTEs	ASCII string "SWP2"
 B6h 26 BYTEs	drive table ???
 D0h 150 BYTEs	???
166h 60 BYTEs	LZSINFO structure (see #1523 at INT 2F/AX=4A12h)
SeeAlso: #1342,#0858 at INT 21/AH=52h

Format of Stacker boot record:
Offset	Size	Description	(Table 1342)
1F0h  8 BYTEs	Stacker signature (first byte is CDh)
1F8h	DWORD	pointer to start of Stacker device driver
1FCh	WORD	Stacker volume number
1FEh	WORD	???
SeeAlso: #1341
--------c-25--FFSI4358-----------------------
INT 25 - PC-CACHE.SYS - INSTALLATION CHECK
	AL = FFh
	SI = 4358h
Return: SI = 6378h if installed
	    CX = segment of device driver PC-CACHE.SYS
	    DX = version (major in DH, minor in DL)
Program: PC-CACHE.SYS is a small device driver used by PC-Cache v5.x to obtain
	  access to certain disk drivers for devices such as Bernoulli drives
SeeAlso: INT 13/AH=A0h
--------D-26---------------------------------
INT 26 - DOS 1+ - ABSOLUTE DISK WRITE (except partitions > 32M)
	AL = drive number (00h = A:, 01h = B:, etc)
	CX = number of sectors to write (not FFFFh)
	DX = starting logical sector number (0000h - highest sector on drive)
	DS:BX -> data to write
Return: CF clear if successful
	CF set on error
	    AH = status (see #1338)
	    AL = error code (same as passed to INT 24 in DI)
		 AX = 0207h if more than 64K sectors on drive -- use new-style call
	may destroy all other registers except segment registers
Notes:	original flags are left on stack, and must be popped by caller
	this call bypasses the DOS filesystem, though DOS 5+ invalidates any
	  disk buffers referencing sectors which are written with this call
	examination of CPWIN386.CPL indicates that if this call fails with
	  error 0408h on an old-style (<32m) call,="" one="" should="" retry="" the="" call="" with="" the="" high="" bit="" of="" the="" drive="" number="" in="" al="" set="" novell="" dos="" 7="" decides="" whether="" the="" old-style="" or="" new-style="" (="">32M) version
	  of INT 26 must be used solely on the basis of the partition's size,
	  thus forcing use of the new-style call even for data in the first
	  32M of the partition
BUGS:	DOS 3.1 through 3.3 set the word at ES:[BP+1Eh] to FFFFh if AL is an
	  invalid drive number
	DR-DOS 3.41 will return with a jump instead of RETF, leaving the
	  wrong number of bytes on the stack; use the huge-partition version
	  (INT 26/CX=FFFFh) for all partition sizes under DR-DOS 3.41
SeeAlso: INT 13/AH=03h,INT 25,INT 26/CX=FFFFh
--------D-26----CXFFFF-----------------------
INT 26 - DOS 3.31+ - ABSOLUTE DISK WRITE (>32M hard-disk partition)
	CX = FFFFh
	AL = drive number (0=A, 1=B, etc)
	DS:BX -> disk write packet (see #1343)
Return: CF clear if successful
	CF set on error
	    AH = status (see #1338)
	    AL = error code (same as passed to INT 24 in DI)
	    AX = 0207h if more than 64K sectors on drive -- use new-style call
	may destroy all other registers except segment registers
Notes:	partition is potentially >32M (and requires this form of the call) if
	  bit 1 of the device attribute word in the device driver is set
	original flags are left on stack, and must be removed by caller
	this call bypasses the DOS filesystem, though DOS 5+ invalidates any
	  disk buffers referencing sectors which are written with this call
SeeAlso: INT 13/AH=03h,INT 25/CX=FFFFh,INT 26

Format of disk write packet:
Offset	Size	Description	(Table 1343)
 00h	DWORD	sector number
 04h	WORD	number of sectors to read
 06h	DWORD	transfer address
--------G-26---------------------------------
INT 26 - COMTROL HOSTESS i/ISA DEBUGGER - ENTER/EXIT EXTENDED ADDRESSING MODE
	???
Return: ???
SeeAlso: INT 23"COMTROL",INT 27"COMTROL"
--------D-27---------------------------------
INT 27 - DOS 1+ - TERMINATE AND STAY RESIDENT
	DX = number of bytes to keep resident (max FFF0h)
	CS = segment of PSP
Return: never
Notes:	this is an obsolete call
	INT 22, INT 23, and INT 24 are restored from the PSP
	does not close any open files
	the minimum number of bytes which will remain resident is 110h for
	  DOS 2.x and 60h for DOS 3+; there is no minimum for DOS 1.x, which
	  implements this service in COMMAND.COM rather than the DOS kernel
SeeAlso: INT 21/AH=31h
--------G-27---------------------------------
INT 27 - COMTROL HOSTESS i/ISA DEBUGGER - INVOKE REMOTE TURBO DEBUGGER KERNEL
	???
Return: ???
Desc:	invoke a copy of the remote Turbo Debugger kernel on the Hostess i
	  controller
SeeAlso: INT 20"COMTROL",INT 26"COMTROL"
--------D-28---------------------------------
INT 28 C - DOS 2+ - DOS IDLE INTERRUPT
	SS:SP = top of MS-DOS stack for I/O functions
Return: all registers preserved
Desc:	This interrupt is invoked each time one of the DOS character input
	  functions loops while waiting for input.  Since a DOS call is in
	  progress even though DOS is actually idle during such input waits,
	  hooking this function is necessary to allow a TSR to perform DOS
	  calls while the foreground program is waiting for user input.	 The
	  INT 28h handler may invoke any INT 21h function except functions
	  00h through 0Ch.
Notes:	under DOS 2.x, the critical error flag (the byte immediately after the
	  InDOS flag) must be set in order to call DOS functions 50h/51h from
	  the INT 28h handler without destroying the DOS stacks.
	calls to INT 21/AH=3Fh,40h from within an INT 28 handler may not use a
	  handle which refers to CON
	at the time of the call, the InDOS flag (see INT 21/AH=34h) is normally
	  set to 01h; if larger, DOS is truly busy and should not be reentered
	the default handler is an IRET instruction
	supported in OS/2 compatibility box
	the _MS-DOS_Programmer's_Reference_ for DOS 5.0 incorrectly documents
	  this interrupt as superseded
SeeAlso: INT 21/AH=34h,INT 2A/AH=84h,INT 2F/AX=1680h
--------D-29---------------------------------
INT 29 C - DOS 2+ - FAST CONSOLE OUTPUT
	AL = character to display
Return: nothing
Notes:	automatically called when writing to a device with bit 4 of its device
	  driver header set (see also INT 21/AH=52h)
	COMMAND.COM v3.2 and v3.3 compare the INT 29 vector against the INT 20
	  vector and assume that ANSI.SYS is installed if the segment is larger
	the default handler under DOS 2.x and 3.x simply calls INT 10/AH=0Eh
	the default handler under DESQview 2.2 understands the [2J
	  screen-clearing sequence, calls INT 10/AH=0Eh for all others
SeeAlso: INT 21/AH=52h,INT 2F/AX=0802h,INT 79
--------N-2A00-------------------------------
INT 2A - NETWORK - INSTALLATION CHECK
	AH = 00h
Return: AH <> 00h if installed
	CF set if NetWare v2.15 NetBIOS emulator installed
Note:	supported by PC LAN Program, LAN Manager, LANtastic, NetWare, 10NET,
	  etc.
SeeAlso: INT 5C
--------N-2A0000-----------------------------
INT 2A - AT&T Starlan Extended NetBIOS (var length names) - INSTALLATION CHECK
	AX = 0000h
Return: AH = DDh
SeeAlso: INT 5B
--------N-2A01-------------------------------
INT 2A - NETWORK (Microsoft,LANtastic) - EXECUTE NETBIOS REQUEST,NO ERROR RETRY
	AH = 01h
	ES:BX -> NCB (see #1894 at INT 5C)
Return: AL = NetBIOS error code
	AH = status
	    00h no error
	    01h error occurred
SeeAlso: AH=04h,AX=0500h,INT 5B,INT 5C"NetBIOS"
--------N-2A02-------------------------------
INT 2A - NETWORK (Microsoft) - SET NET PRINTER MODE
	AH = 02h
	???
Return: ???
--------N-2A0300-----------------------------
INT 2A - NETWORK - CHECK DIRECT I/O
	AX = 0300h
	DS:SI -> ASCIZ device name (may be full path or only drive specifier--
		  must include the colon)
Return: CF clear if direct physical addressing (INT 13,INT 25) permissible
	CF set if access via files only
Notes:	do not use direct disk accesses if this function returns CF set or the
	  device is redirected (INT 21/AX=5F02h)
	use AH=00h to determine whether the network is installed; if not,
	  direct physical access is allowed
	may take some time to execute, so programs which need to check
	  frequently should save the result of the first call
	this function is called by the DOS kernel on INT 25 and INT 26
	supported by PC LAN Program, LAN Manage, LANtastic, NetWare, 10NET,
	  etc.
SeeAlso: INT 13,INT 25,INT 26,INT 21/AX=5F02h
--------N-2A04-------------------------------
INT 2A - NETWORK - EXECUTE NetBIOS REQUEST
	AH = 04h
	AL = error retry
	    00h automatically retry request on errors 09h, 12h, and 21h
		  (see #1893 at INT 5C"NetBIOS")
	    01h no retry
	    02h ???
	ES:BX -> Network Control Block (see #1894 at INT 5C"NetBIOS")
Return: AX = 0000h if successful
	AH = 01h on error
	    AL = error code
Notes:	invokes either INT 5B or INT 5C as appropriate
	supported by PC LAN Program, LANtastic, LAN Manager, NetWare, 10NET,
	  etc.
	NetWare 2.15 NetBIOS emulator returns CF clear if successful, CF set
	  on error
	PC LAN Program defines any non-zero return value in AH as an error
	  indicator for subfunction 00h, and any non-zero return value in AX
	  as an error indicator for subfunction 01h
SeeAlso: AH=00h,AH=01h,AX=0500h,INT 5B,INT 5C"NetBIOS"
--------N-2A0500-----------------------------
INT 2A - NETWORK - GET NETWORK RESOURCE AVAILABILITY
	AX = 0500h
Return: AX reserved
	BX = number of network names available
	CX = number of network control blocks available
	DX = number of network sessions available
Notes:	supported by PC LAN Program, LAN Manager, LANtastic, NetWare, 10NET,
	  etc.
	the application should call this function before using any network
	  resources, and maintain its own count to avoid exceeding the
	  network's resource limits
SeeAlso: AH=00h,AH=01h,AH=04h,INT 5C"NetBIOS"
--------N-2A06-------------------------------
INT 2A - NETBIOS, LANtastic - NETWORK PRINT-STREAM CONTROL
	AH = 06h
	AL = function
	    01h set concatenation mode
		all printer output put in one job until return to DOS prompt
		 02h set truncation mode (default)
		printer open/close or BIOS/DOS output switch starts new job
	    03h flush printer output and start new print job
Return: CF set on error
	    AX = error code
	CF clear if successful
Notes:	subfunction 03h is equivalent to Ctrl/Alt/keypad-*
	supported by PC LAN Program, LANtastic, NetWare, 10NET, etc.
	LANtastic v4.x no longer supports this call
	this function sets the printer mode for all redirected printers
SeeAlso: INT 21/AX=5D08h,INT 21/AX=5D09h,INT 2F/AX=1125h
--------N-2A07-------------------------------
INT 2A U - PC Network v1.00 - RECEIVER.COM - ???
	AH = 07h
	???
Return: ???
Program: PC Network is an early networking package which was renamed the
	  IBM PC Local Area Network Program (PC LAN Program) as of v1.10
SeeAlso: AH=86h
--------N-2A2001-----------------------------
INT 2A - MS Networks or NETBIOS - ???
	AX = 2001h
	???
Return: ???
Note:	intercepted by DESQview 2.x
--------N-2A2002-----------------------------
INT 2A - NETWORK - ???
	AX = 2002h
	???
Return: ???
Note:	called by MS-DOS 3.30-6.00 APPEND
--------N-2A2003-----------------------------
INT 2A - NETWORK - ???
	AX = 2003h
	???
Return: ???
Note:	called by MS-DOS 3.30-6.00 APPEND
--------N-2A7802-----------------------------
INT 2A - NETWORK - PC LAN PROG v1.31+ - GET LOGGED ON USER NAME
	AX = 7802h
	ES:DI -> 8-byte buffer to be filled
Return: AL = 00h if no user logged on to Extended Services
	AL <> 00h if user logged on to Extended Services
	    buffer at ES:DI filled with name, padded to 8 chars with blanks.
--------D-2A80-------------------------------
INT 2A CU - NETWORK - BEGIN DOS CRITICAL SECTION
	AH = 80h
	AL = critical section number (00h-0Fh) (see #1344)
Notes:	normally hooked to avoid interrupting a critical section, rather than
	  called
	the handler should ensure that none of the critical sections are
	  reentered, usually by suspending a task which attempts to reenter
	  an active critical section
	the DOS kernel does not invoke critical sections 01h and 02h unless it
	  is patched.  DOS 3.1+ contains a zero-terminated list of words
	  beginning at offset -11 from the Swappable Data Area
	  (see #0892 at INT 21/AX=5D06h); each word contains the offset within
	  the DOS data segment of a byte which must be changed from C3h (RET)
	  to 50h (POP AX) under DOS 3.x or from 00h to a nonzero value under
	  DOS 4+ to enable use of critical sections.  For DOS 4+, all words in
	  this list point at the byte at offset 0D0Ch.
	MS Windows patches the DOS kernel's calls to INT 2A/AH=80h-81h into
	  far calls to its own handler, and does not reflect the calls back
	  to INT 2A unless SYSTEM.INI contains ReflectDOSInt2A=1 or
	  ModifyDOSInt2A=0 in the [386Enh] section
	Novell NETX does not issue INT 2A/AH=80h and INT 2A/AH=81h calls when
	  it intercepts INT 21 calls and processes them itself
SeeAlso: AH=81h,AH=82h,AX=8700h,INT 21/AX=5D06h,INT 21/AX=5D0Bh

(Table 1344)
Values for DOS critical section number:
 01h	DOS kernel, SHARE.EXE, DOSMGR
	apparently for maintaining the integrity of DOS/SHARE/NET
	  data structures
 02h	DOS kernel, DOSMGR
	ensures that no multitasking occurs while DOS is calling an
	  installable device driver
 05h	network redirector
 06h	DOS 4.x only IFSFUNC
 08h	ASSIGN.COM
 0Ah	MSCDEX
 0Fh	IBM PC LAN server (while intercepting INT 10/AH=06h,07h,0Eh)
--------D-2A81-------------------------------
INT 2A CU - NETWORK - END DOS CRITICAL SECTION
	AH = 81h
	AL = critical section number (00h-0Fh) (see #1344)
Notes:	normally hooked rather than called
	the handler should reawaken any tasks which were suspended due to an
	  attempt to enter the specified critical section
	MS Windows patches the DOS kernel's calls to INT 2A/AH=80h-81h into
	  far calls to its own handler, and does not reflect the calls back
	  to INT 2A unless SYSTEM.INI contains ReflectDOSInt2A=1 or
	  ModifyDOSInt2A=0 in the [386Enh] section
SeeAlso: AH=80h,AH=82h,AX=8700h
--------D-2A82-------------------------------
INT 2A CU - NETWORK - END DOS CRITICAL SECTIONS 0 THROUGH 7
	AH = 82h
Notes:	called by the INT 21h function dispatcher for function 0 and functions
	  greater than 0Ch except 59h, and on process termination
	the handler should reawaken any tasks which were suspended due to an
	  attempt to enter one of the critical sections 0 through 7
SeeAlso: AH=81h
--------N-2A84-------------------------------
INT 2A CU - NETWORK - KEYBOARD BUSY LOOP
	AH = 84h
Note:	similar to DOS's INT 28h, called from inside the DOS keyboard input
	  loop (i.e. INT 21/AH=07h or INT 21/AH=08h) to allow the network
	  software to process requests
SeeAlso: INT 28
--------N-2A86-------------------------------
INT 2A U - PC Network v1.00 - RECEIVER.COM - ???
	AH = 86h
	???
Return: ???
SeeAlso: AH=07h,AH=C4h
--------P-2A8700-----------------------------
INT 2A CU - PRINT - BEGIN BACKGROUND PRINTING
	AX = 8700h
	CF clear
Return: CF clear if OK to print in background now
	CF set if background printing not allowed at this time
Desc:	used to inform interested programs that PRINT is about to start its
	  background processing, and allow those programs to postpone the
	  processing if necessary
Notes:	when PRINT gains control and wants to begin printing, it calls this
	  function.  If CF is clear on return, PRINT begins its background
	  processing, and calls AX=8701h when it is done.  If CF is set on
	  return, PRINT will relinquish control immediately, and will not
	  call AX=8701h
	PCVENUS (an early network shell by IBM and CMU) hooks this call to
	  prevent background printing while its own code is active
SeeAlso: AH=80h,AH=81h,AX=8701h
--------P-2A8701-----------------------------
INT 2A CU - PRINT - END BACKGROUND PRINTING
	AX = 8701h
Desc:	used to inform interested programs that PRINT has completed its
	  background processing
Note:	called by PRINT after it has performed some background printing; not
	  called if AX=8700h returned with CF set.
SeeAlso: AX=8700h
--------N-2A89-------------------------------
INT 2A U - PC Network v1.00 - RECEIVER.COM - ???
	AH = 89h
	AL = ???  (ASSIGN uses 08h)
	???
Return: ???
--------I-2A90-------------------------------
INT 2A U - IBM PC 3270 EMULATION PROGRAM - ???
	AH = 90h
	???
Return: ???
Note:	the LANtastic redirector and SERVER.EXE use this function with AL=01h,
	  03h-07h,0Ch-11h
--------N-2AC2-------------------------------
INT 2A U - Network - ???
	AH = C2h
	AL = subfunction
	    07h ???
	    08h ???
	BX = 0001h
	???
Return: ???
Note:	this function is called by the DOS 3.30-6.00 APPEND
--------N-2AC4-------------------------------
INT 2A U - PC Network v1.00 - RECEIVER.COM - ???
	AH = C4h
	AL = subfunction
	    07h ???
	    08h ???
	BX = ???
	???
Return: ???
SeeAlso: AH=86h
--------N-2AD800-----------------------------
INT 2A U - Novell NetWare Lite - SERVER - SET ???
	AX = D800h
Return: nothing
Desc:	sets ??? flag, and sets ??? to initial value
Note:	called by CLIENT
SeeAlso: AX=D801h,AX=D850h
--------N-2AD801-----------------------------
INT 2A U - Novell NetWare Lite - SERVER - RESET ???
	AX = D801h
Return: nothing
Desc:	clears the ??? flag set by AX=D800h
Note:	called by CLIENT
SeeAlso: AX=D800h,AX=D850h
--------N-2AD850-----------------------------
INT 2A U - Novell NetWare Lite - CLIENT - INCREMENT ???
	AX = D850h
Return: nothing
Desc:	increments an internal byte-sized counter
Note:	this function is intercepted by DV/X 1.10 PEERSERV.DVR and the
	  Advanced NetWare 4.0 DOS Requester
SeeAlso: AX=D851h
--------N-2AD851-----------------------------
INT 2A U - Novell NetWare Lite - CLIENT - RESET ???
	AX = D851h
Return: nothing
Desc:	resets an internal byte-sized counter to zero
Note:	this function is intercepted by DV/X 1.10 PEERSERV.DVR and the
	  Advanced NetWare 4.0 DOS Requester
SeeAlso: AX=D850h
--------N-2AD852-----------------------------
INT 2A U - Novell NetWare - DOS Requester v1.03 - ???
	AX = D852h
Return: ???
Note:	calls the NetWare Lite SERVER installation check, and sets ??? pointer
SeeAlso: AX=D853h,INT 2F/AX=D880h
--------N-2AD853-----------------------------
INT 2A U - Novell NetWare - DOS Requester v1.03 - ???
	AX = D853h
Return: ???
Note:	clears the pointer set by AX=D852h
SeeAlso: AX=D852h
--------N-2AE0-------------------------------
INT 2A U - PC Network 1.00 - ???
	AH = E0h
	AL = subfunction??? (01h,02h, maybe others)
	???
Return: ???
Note:	called by PCNet 1.00 NET.COM, a shell program from which others are run
--------N-2AFF90-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
	AX = FF90h
Return: AX = ???
Note:	PREDIR.EXE is the network printer redirector included as part of the
	  PC/TCP system by FTP Software, Inc.
--------N-2AFF91-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
	AX = FF91h
	BX = ???
Return: AX = status???
--------N-2AFF92-----------------------------
INT 2A - PC/TCP PREDIR.EXE - INSTALLATION CHECK
	AX = FF92h
Return: AX = 0000h if installed
	   BX = redirected printer port (FFFFh if no printers redirected)
	   CX = version (CH = major, CL = minor)
Note:	PREDIR.EXE is the network printer redirector included as part of the
	  PC/TCP system by FTP Software, Inc.
--------N-2AFF93-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
	AX = FF93h
Return: AX = ???
--------N-2AFF94-----------------------------
INT 2A - PC/TCP PREDIR.EXE - ???
	AX = FF94h
	BX = ???
	CX = ???
	DX = ???
Return: AX = ???
Note:	PREDIR.EXE is the network printer redirector included as part of the
	  PC/TCP system by FTP Software, Inc.
--------N-2AFF95-----------------------------
INT 2A - PC/TCP PREDIR.EXE - GET CONFIGURATION STRINGS
	AX = FF95h
	CX = what to get
	    0000h ??? (returned pointer to "C:\COMMAND.COM")
	    0001h spooling program
	    0002h ???
	    0003h spool file name
	    0004h swap file name
Return: AX = status
	    0000h successful
	BX:DX -> ASCIZ configuration string
--------N-2AFF96-----------------------------
INT 2A - PC/TCP PREDIR.EXE - SET PRINT JOB TERMINATION CONFIGURATION
	AX = FF96h
	CX = what to set
	    0000h ???
	    0001h print-on-hotkey state
	    0002h print-on-exit state
	    0003h print job timeout in clock ticks
	    0004h print-on-EOF state
	BX = new value (0000h disabled, 0001h enabled except for timeout)
Return: AX = ???
SeeAlso: AX=FF97h
Note:	PREDIR.EXE is the network printer redirector included as part of the
	  PC/TCP system by FTP Software, Inc.
--------N-2AFF97-----------------------------
INT 2A - PC/TCP PREDIR.EXE - GET PRINT JOB TERMINATION CONFIGURATION
	AX = FF97h
	CX = what to get
	    0000h ???
	    0001h print-on-hotkey state
	    0002h print-on-exit state
	    0003h print job timeout in clock ticks
	    0004h print-on-EOF state
Return: AX = status
	    0000h successful
	BX = old value (0000h disabled, 0001 enabled except for timeout)
SeeAlso: AX=FF96h
--------D-2B---------------------------------
INT 2B - DOS 2+ - RESERVED
Note:	this vector is not used in DOS versions <= 6.00,="" and="" points="" at="" an="" iret="" --------d-2c---------------------------------="" int="" 2c="" -="" dos="" 2+="" -="" reserved="" note:="" this="" vector="" is="" not="" used="" in="" dos="" versions=""><= 6.00,="" and="" points="" at="" an="" iret="" --------o-2c---------------------------------="" int="" 2c="" -="" starlite="" architecture="" -="" kernel="" api="" note:="" starlite="" is="" an="" architecture="" by="" general="" software="" for="" a="" series="" of="" ms-dos="" compatible="" operating="" systems="" (oem="" dos,="" network="" dos,="" and="" smp="" dos)="" to="" be="" released="" in="" 1991.="" the="" interrupt="" number="" is="" subject="" to="" change="" before="" the="" actual="" release.="" --------m-2c---------------------------------="" int="" 2c="" r="" -="" cloaking="" -="" call="" protected-mode="" passalong="" chain="" notes:="" when="" this="" interrupt="" is="" invoked="" in="" v86="" mode,="" rm386="" will="" invoke="" the="" first="" in="" a="" chain="" of="" protected-mode="" handlers,="" and="" will="" only="" pass="" execution="" to="" the="" v86-mode="" int="" 2c="" handler="" if="" none="" of="" the="" handlers="" in="" the="" passalong="" chain="" handle="" the="" call="" instead.="" this="" is="" the="" method="" by="" which="" the="" real-mode="" stub="" of="" a="" cloaked="" application="" communicates="" with="" the="" protected-mode="" portion.="" the="" cloaking="" host="" calls="" the="" passalong="" chain="" with="" eax="58494E33h" ('win3')="" when="" ms="" windows="" starts="" up="" and="" with="" eax="334E4958h" ('3niw')="" when="" windows="" shuts="" down;="" between="" these="" two="" broadcasts,="" the="" additional="" windows-only="" cloaking="" services="" are="" available="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00,="" the="" memory="" manager="" included="" in="" helix="" software's="" netroom="" seealso:="" int="" 2c/ax="0009h,INT" 2f/ax="4310h" cloaking""="" --------m-2c0000-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" allocate="" gdt="" selector="" ax="0000h" ebx="base" address="" cl="access" mode="" byte="" ch="extended" access="" mode="" byte="" (omit="" limit="" field)="" edx="segment" limit="" return:="" cf="" clear="" if="" successful="" ax="selector" cf="" set="" on="" error="" ax="error" code="" (see="" #1345)="" notes:="" this="" int="" 2c="" interface="" is="" used="" by="" netroom's="" dpmi.exe="" v3.00="" to="" access="" extended="" memory,="" set="" the="" base="" address="" to="" the="" desired="" physical="" address="" plus="" 400000h="" (4m)="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00,="" the="" memory="" manager="" included="" in="" helix="" software's="" netroom="" seealso:="" ax="0001h,AX=0002h,AX=0003h,AX=0004h,AX=0005h,INT" 31/ah="57h,#0377" (table="" 1345)="" values="" for="" cloaking="" error="" code:="" 0001h="" no="" more="" selectors="" 0002h="" not="" a="" gdt="" ring="" 0="" selector="" 0003h="" invalid="" selector="" (out="" of="" range,="" not="" user="" selector)="" 0004h="" selector="" not="" allocated="" --------m-2c0001-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" free="" gdt="" selector="" ax="0001h" si="selector" return:="" cf="" clear="" if="" successful="" cf="" set="" on="" error="" ax="error" code="" (see="" #1345)="" note:="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00="" seealso:="" ax="0000h,INT" 2f/ax="4310h" cloaking""="" --------m-2c0002-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" set="" segment="" base="" address="" ax="0002h" si="selector" ebx="new" physical="" base="" addres="" return:="" cf="" clear="" if="" successful="" cf="" set="" on="" error="" ax="error" code="" (see="" #1345)="" note:="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00="" seealso:="" ax="0000h,AX=0003h,AX=0004h,INT" 31/ax="0007h,#0377" --------m-2c0003-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" set="" segment="" limit="" ax="0003h" si="selector" ebx="new" limit="" return:="" cf="" clear="" if="" successful="" cf="" set="" on="" error="" ax="error" code="" (see="" #1345)="" note:="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00="" seealso:="" ax="0000h,AX=0002h,AX=0004h,INT" 31/ax="0008h" --------m-2c0004-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" set="" segment="" access="" mode="" ax="0004h" si="selector" cl="new" access="" mode="" byte="" (see="" #0378)="" return:="" cf="" clear="" if="" successful="" cf="" set="" on="" error="" ax="error" code="" (see="" #1345)="" note:="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00="" seealso:="" ax="0000h,AX=0002h,AX=0003h,AX=0005h,INT" 31/ax="0009h" --------m-2c0005-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" set="" segment="" extended="" access="" mode="" ax="0005h" si="selector" cl="new" extended="" access="" mode="" byte="" (limit="" field="" ignored)="" (see="" #1346)="" return:="" cf="" clear="" if="" successful="" cf="" set="" on="" error="" ax="error" code="" (see="" #1345)="" note:="" this="" function="" was="" first="" introduced="" with="" rm386="" (ram-man/386)="" v6.00="" seealso:="" ax="0000h,AX=0002h,AX=0003h,AX=0004h,INT" 31/ax="0009h" bitfields="" for="" extended="" access="" mode="" byte:="" bit(s)="" description="" (table="" 1346)="" 7="" 4k="" granularity="" instead="" of="" byte="" granularity="" 6="" 32-bit="" code="" segment="" 5="" reserved="" (0)="" 4="" segment="" available="" to="" system="" seealso:="" #0379="" --------m-2c0006-----------------------------="" int="" 2c="" p="" -="" cloaking="" -="" get="" protected-mode="" interrupt="" vector="" ax="0006h" cl="vector" (00h-7fh)="" return:="" cf="" clear="" dx:ebx="" -=""> current interrupt handler
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0007h,INT 31/AX=0204h
--------m-2C0007-----------------------------
INT 2C P - Cloaking - SET PROTECTED-MODE INTERRUPT VECTOR
	AX = 0007h
	CL = vector (00h-7Fh)
	DX:EBX -> interrupt handler
Return: CF clear
Notes:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
	the IDT entry's type remains unchanged
SeeAlso: AX=0006h,INT 31/AX=0205h
--------m-2C0008-----------------------------
INT 2C P - Cloaking - GET PASSALONG ADDRESS
	AX = 0008h
Return: CF clear
	DX:EBX = current passalong address
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0009h,AX=002Ch,INT 2F/AX=4310h"Cloaking"
--------m-2C0009-----------------------------
INT 2C P - Cloaking - SET PASSALONG ADDRESS
	AX = 0009h
	DX:EBX = new value for passalong address (see #1347)
Return: CF clear
Notes:	when an INT 2C instruction is executed in V86 mode, the Cloaking host
	  calls the passalong address.	The handler should check whether the
	  upcall is of interest to it, and if not it should jump to the old
	  passalong address (retrieved with AX=0008h before the handler was
	  installed).  The final handler should return with CF clear to cause
	  the interrupt to be reflected back to V86 mode if none of the
	  passalong handlers is triggered
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0008h,AX=002Dh,INT 2C"CLOAKING"

(Table 1347)
Values Cloaking passalong address is called with:
	EAX = CS:IP of byte following INT 2C instruction invoking passalong
	SS:EBX -> caller registers (see #1348)
	CF clear
	others undefined
Return: CF clear: pass along to V86-mode INT 2C handler
	CF set: return immediately to V86 mode

Format of Cloaking caller registers:
Offset	Size	Description	(Table 1348)
 00h	DWORD	EDI
 04h	DWORD	ESI
 08h	DWORD	EBP
 0Ch	DWORD	reserved (ESP from PUSHAD instruction)
 10h	DWORD	EBX
 14h	DWORD	EDX
 18h	DWORD	ECX
 1Ch	DWORD	EAX
 20h	DWORD	error code
 24h	DWORD	EIP
 28h	WORD	CS
 2Ah	WORD	padding
 2Ch	DWORD	EFLAGS
 30h	DWORD	ESP
 34h	WORD	SS
 36h	WORD	padding
--remainder not available if protected-mode ring3 trap---
 38h	WORD	ES
 3Ah	WORD	padding
 3Ch	WORD	DS
 3Eh	WORD	padding
 40h	WORD	FS
 42h	WORD	padding
 44h	WORD	GS
 46h	WORD	padding
--------m-2C000A-----------------------------
INT 2C P - Cloaking - GET BASE ADDRESS OF GDT SELECTOR
	AX = 000Ah
	SI = selector
Return: CF clear if successful
	    EBX = segment base address
	CF set on error
		 AX = error code (see #1345)
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00, the
	  memory manager included in Helix Software's Netroom
SeeAlso: AX=0000h,AX=0002h,AX=000Bh
--------m-2C000B-----------------------------
INT 2C P - Cloaking - GET SELECTOR LIMIT
	AX = 000Bh
	SI = selector
Return: CF clear if successful
	    EBX = segment base address
	CF set on error
	    AX = error code (see #1345)
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=000Ah,INT 2F/AX=4310h"Cloaking"
--------m-2C---------------------------------
INT 2C P - RM386 v6.00 - CLOAKING - RESERVED FOR CLOAKED BIOS USE UNDER WINDOWS
	AX = function (000Ch-001Fh)
--------m-2C000F-----------------------------
INT 2C P - Cloaking v1.01 - "Simulate_Shell_Event"
	AX = 000Fh
	ECX = event code (see #1349)
	DX = subfunction for event
	EDX high word = boost value (see #1350)
	SI:EDI -> completion procedure
Return: CF clear if successful (event scheduled)
	CF set on error
Note:	this function is only available while MS Windows is running
SeeAlso: AX=0011h,AX=0012h,INT 2F/AX=1605h,INT 2F/AX=4310h"Cloaking"

(Table 1349)
Values for Cloaking shell event code:
 0414h	Hot key event
	subevent 0000h: Alt-Space
	subevent 0001h: Alt-Enter
	subevent 0002h: Dir-VM
 0415h	Switch context
	subevent 0000h for DOS VM context, nonzero for System VM context
 0416h	Clipboard event
 0417h	Termination event
	subevent 0000h for normal termination, nonzero for error
 0418h	Display message
	subevent 0000h for normal message, nonzero for system model ASAP
 0419h	Crash
 041Ah	Paste complete
	subevent 0000h: normal
	subevent 0001h: cancelled by user
	subevent 0002h: cancelled
 041Bh	Contention event
 041Ch	Screen switch
	subevent 0000h: forward
	subevent 0001h: back
 041Dh	Filesystem change
 041Eh	Check Focus
 041Fh	Panic

Bitfields for boost value:
Bit(s)	Description	(Table 1350)
 0	boost system VM until focus changes
 1	boost system VM on Switcher screen
 2	boost system VM until response
 3	boost system VM during clipboard activity
 4	boost system VM during print screen
 5	boost system VM during update
--------m-2C0011-----------------------------
INT 2C P - Cloaking v1.01 - "Switch_VMs_and_Call_back"
	AX = 0011h
	EBX = handle of VM to be made active
	SI:EDI -> 32-bit FAR completion procedure
Return: CF clear if successful (scheduled)
	CF set on error
Notes:	this function is only available while MS Windows is running
	the completion procedure is called with CF clear if the specified
	  VM has been made active, or with CF set on error
SeeAlso: AX=000Fh,AX=0012h
--------m-2C0012-----------------------------
INT 2C P - Cloaking v1.01 - "Query_Current_VM"
	AX = 0012h
Return: CF clear
	EBX = handle of active VM
	ESI = handle of system VM
	ECX = VM status flags (see #1351)
	EDX = shell flags (see #1352)
Note:	this function is only available while MS Windows is running in enhanced
	  mode
SeeAlso: AX=000Fh,AX=0011h,AX=0013h

Bitfields for VM status flags:
Bit(s)	Description	(Table 1351)
 0	in exclusive mode
 1	runs in background
 2	being created
 3	suspended
 4	not executable
 5	executing in protected mode
 6	contains PM application
 7	32-bit PM application
 8	called from VxD
 9	high priority background
 10	blocked on semaphore
 11	awakening
 12	has pageable V86
 13	has locked V86
 14	is scheduled
 15	idle
 16	closing

Bitfields for shell flags:
Bit(s)	Description	(Table 1352)
 2	windowed
 5	Alt-Tab reserved
 6	Alt-Esc reserved
 7	Alt-Space reserved
 8	Alt-PrtSc reserved
 9	Alt-Enter reserved
 10	Alt-PrtSc reserved
 11	PrtSc reserved
 12	polling enabled
 13	no HMA
 14	has shortcut key
 15	locked EMS handles
 16	locked XMS handles
 17	fast paste enabled
 18	locked V86 memory
 30	close-on-exit enabled	
--------m-2C0013-----------------------------
INT 2C P - Cloaking v1.01 - "Issue_System_Modal_Message"
	AX = 0013h
	EDX = message box flags (see #1353)
	DS:ECX -> ASCIZ message text
	DS:EDI -> ASCIZ caption
Return: CF clear
	EAX = response code
Note:	this function is only available while MS Windows is running in enhanced
	  mode
SeeAlso: AX=000Fh,AX=0012h

Bitfields for message box flags:
Bit(s)	Description	(Table 1353)
 3-0	response codes (see #1354)
 7-4	icon codes
	1 = Warning hand
	2 = exclamation mark
	4 = asterisk
 9-8	default response (0 = first button, 1 = second, 2 = third)
 12	message is system model
 15	don't change focus
 29	hang with interrupts enabled
 30	do not window
 31	execute ASAP

(Table 1354)
Values for response codes:
 00h	OK
 01h	OK, Cancel
 02h	Abort, Retry, Ignore
 03h	Yes, No, Cancel
 04h	Yes, No
 05h	Retry, Cancel
--------m-2C001D-----------------------------
INT 2C P - Cloaking v1.01 - GET INT 2C API HANDLER ENTRY POINT
	AX = 001Dh
Return: CF clear
	DX:EBX = selector:offset of Cloaking host INT 2C handler
Desc:	get the Cloaking host's entry point to bypass any other programs
	  which may have hooked INT 2C in protected mode
Note:	the returned entry point must be called with a simulated INT, i.e.
	  a PUSHD must precede the far call to the handler
SeeAlso: INT 2F/AX=4310h"Cloaking"
--------m-2C001E-----------------------------
INT 2C P - Cloaking v1.01 - CLEAR CRITICAL SECTION
	AX = 001Eh
Return: CF clear
Desc:	allow MS Windows to switch to another VM after having prevented it
	  by invoking a critical section
SeeAlso: AX=001Fh,INT 15/AX=101Ch,INT 2F/AX=1682h
--------m-2C001F-----------------------------
INT 2C P - Cloaking v1.01 - SET CRITICAL SECTION
	AX = 001Fh
Return: CF clear
Desc:	prevent MS Windows from switching to another VM
SeeAlso: AX=001Eh,INT 15/AX=101Bh,INT 2F/AX=1681h
--------m-2C0020-----------------------------
INT 2C P - Cloaking - GET SIZE OF PROTECTED-MODE STATE
	AX = 0020h
Return: EAX = number of bytes required for storing state
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0021h,AX=0022h
--------m-2C0021-----------------------------
INT 2C P - Cloaking - SAVE PROTECTED-MODE STATE
	AX = 0021h
	ES:EDI -> buffer for protected-mode state
Return: CF clear
	buffer filled
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0020h,AX=0022h
--------m-2C0022-----------------------------
INT 2C P - Cloaking - RESTORE PROTECTED-MODE STATE
	AX = 0022h
	DS:ESI -> buffer containing previously-saved protected-mode state
Return: CF clear if successful
	    state restored
	CF set on error (invalid buffer contents)
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0020h,AX=0021h
--------m-2C0023-----------------------------
INT 2C P - Cloaking - ISSUE PROTECTED-MODE XMS CALL
	AX = 0023h
Notes:	not currently implemented--NOP in RM386 v6.00
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
--------m-2C0024-----------------------------
INT 2C P - Cloaking - SET V86-MODE STACK
	AX = 0024h
	DX:EBX = new value for V86-mode SS:ESP
Return: nothing
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
--------m-2C0025-----------------------------
INT 2C P - Cloaking - CALL V86-MODE PROCEDURE
	AX = 0025h
	DS:EBX -> client register structure (see #1348)
Return: CF clear if successful
	    client register structure updated
	CF set if no more nested procedure call space available
Notes:	this call uses the V86-mode stack supplied in the client structure, and
	  calls the routine specified by CS:IP in the client structure
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0026h,AX=0027h,INT 31/AX=0301h
--------m-2C0026-----------------------------
INT 2C P - Cloaking - CALL V86-MODE INTERRUPT HANDLER
	AX = 0026h
	DS:EBX -> client register structure (see #1348)
	CX = interrupt number
Return: CF clear if successful
	    client register structure updated
	CF set if no more nested procedure call space available
Notes:	this call uses the V86-mode stack supplied in the client structure
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0025h,AX=0027h,INT 31/AX=0300h
--------m-2C0027-----------------------------
INT 2C P - Cloaking - CHAIN TO V86-MODE INTERRUPT HANDLER
	AX = 0027h
	DS:EBX -> client register structure (see #1348)
Return: CF clear if successful
	    client register structure updated
	CF set if no more nested procedure call space available
Notes:	this call uses the V86-mode stack supplied in the client structure,
	  and jumps to the address specified by CS:IP in the client structure
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0025h,AX=0026h
--------m-2C0028-----------------------------
INT 2C P - Cloaking - GET ESP0 FROM TSS
	AX = 0028h
Return: CF clear
	EAX = TSS's ESP0
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00, the
	  memory manager included in Helix Software's Netroom
--------m-2C0029-----------------------------
INT 2C P - Cloaking - SET SECONDARY STACK
	AX = 0029h
	DX:EBX = new value for SS:ESP of ring 3 secondary stack
Return: CF clear
Desc:	inform RM386 of the ring 3 interrupt stack location
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
--------m-2C002A-----------------------------
INT 2C P - Cloaking - SET 8259 IRQ BASE VECTORS
	AX = 002Ah
	BL = base vector of master interrupt controller
	CL = base vector of slave interrupt controller
Notes:	this call merely informs RM386 that the caller has changed the
	  interrupt mappings
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: INT 67/AX=DE0Bh
--------m-2C002BCH81-------------------------
INT 2C P - Cloaking - PROTECTED-MODE VIRTUAL DMA SERVICES
	AX = 002Bh
	CH = 81h
	CL = subfunction (02h-0Ch)
	other registers as appropriate for subfunction
Return: varies by function
	CF set on error
Notes:	these functions are equivalent to the INT 4B/AX=81xxh subfunctions
	  with the same numbers
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: INT 4B/AX=8102h,INT 4B/AX=810Ch
--------m-2C002C-----------------------------
INT 2C P - Cloaking - GET PORT-TRAPPING PASSALONG
	AX = 002Ch
Return: CF clear
	DX:EBX = current I/O trapping passalong address
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0008h,AX=002Dh
--------m-2C002D-----------------------------
INT 2C P - Cloaking - SET PORT-TRAPPING PASSALONG
	AX = 002Dh
	DX:EBX = new I/O trapping passalong address (see #1355)
Return: CF clear
Notes:	RM386 calls the passalong address whenever an access to a monitored
	  I/O port is attempted; the handler should check whether it is a port
	  that it is interested in, and if not call the previous passalong
	  address (which was retrieved with AX=002Ch before installing the
	  new handler)
	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=0009h,AX=002Ch,INT 67/AX=5DEAh

(Table 1355)
Values Cloaking port-trapping passalong address is called with:
	EAX = CS:IP of faulting instruction (unless executing in protected-mode
		ring 3)
	SS:EBX -> caller register structure (see #1348)
		check EFLAGS V86-mode bit for type
	CX = first two bytes of I/O instruction which was trapped
	DX = port to which I/O is being performed
	CF clear
Return: CF clear if RM386 should perform I/O operation
	CF set if I/O should be skipped
Note:	RM386 skips the trapped I/O instruction, so the passalong handler
	  should not modify the client CS:EIP
--------m-2C002E-----------------------------
INT 2C P - Cloaking - TRAP I/O PORT
	AX = 002Eh
	DX = port number to trap
Return: CF clear if successful
	CF set on error (port out of range or reserved)
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=002Fh,AX=0030h
--------m-2C002F-----------------------------
INT 2C PU - Cloaking - UNTRAP I/O PORT
	AX = 002Fh
	DX = port number for which to cancel trapping
Return: CF clear if successful
	CF set on error (port out of range or reserved)
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=002Eh,AX=0030h
--------m-2C0030-----------------------------
INT 2C PU - Cloaking - GET TRAPPING STATE OF SPECIFIED PORT
	AX = 0030h
	DX = port number
Return: CF clear if successful
	   BX = current state (0000h not trapped, 0001h trapped)
	CF set on error (port out of range or reserved)
Note:	this function was first introduced with RM386 (RAM-MAN/386) v6.00
SeeAlso: AX=002Eh,AX=002Fh
--------m-2C0031-----------------------------
INT 2C PU - RM386 v6.00 - BUG
	AX = 0031h
Program: RM386 (RAM-MAN/386) is the memory manager included in Helix Software's
	  Netroom
Note:	due to a fencepost error, RM386 v6.00 will branch unpredictably if
	  invoked with this function
--------m-2C0031-----------------------------
INT 2C P - Cloaking v1.01 - ALLOCATE V86 CALLBACK
	AX = 0031h
	DX:EBX = CS:EIP of protected-mode routine to be invoked by callback
Return: CF clear if successful
	    EBX = CS:IP of V86-mode callback handler
	CF set on error
SeeAlso: AX=0032h
--------m-2C0032-----------------------------
INT 2C P - Cloaking v1.01 - FREE V86 CALLBACK
	AX = 0032h
	EBX = CS:IP of V86-mode callback handler
Return: CF clear if successful
	CF set on error
	    AX = error code
		0005h invalid callback address
		0006h callback already free
SeeAlso: AX=0032h
----------2C0033-----------------------------
INT 2C P - Cloaking v1.01 - REGISTER CLOAKING CLIENT
	AX = 0033h
	DS:EDX -> client registration structure (see #1356)
Return: CF clear if successful
	CF set on error (linked list corrupt)
SeeAlso: AX=0034h,#1497 at INT 2F/AX=4310h"Cloaking"

Format of client registration structure:
Offset	Size	Description	(Table 1356)
 00h	PWORD	link to next structure
 06h	PWORD	link to previous structure
 0Ch  2 BYTEs	client version (major, minor)
 0Eh 20 BYTEs	client name
 22h	DWORD	physical address of client start
 26h	DWORD	client's total size in bytes
Note:	the link area should not be modified once the structure has been
	  used for the registration call
----------2C0034-----------------------------
INT 2C P - Cloaking v1.01 - UNREGISTER CLOAKING CLIENT
	AX = 0034h
	DS:EDX -> client registration structure (see #1356)
Return: CF clear if successful
	CF set on error (linked list corrupt)
Note:	the client must unregister before freeing the XMS block containing
	  its registration structure(s)
SeeAlso: AX=0033h,#1497 at INT 2F/AX=4310h"Cloaking"
--------D-2D---------------------------------
INT 2D - DOS 2+ - RESERVED
Note:	this vector is not used in DOS versions <= 6.00,="" and="" points="" at="" an="" iret="" bug:="" rm386="" v6.00-6.02="" (as="" distributed="" with="" helix's="" netroom="" v3.x)="" contains="" a="" stack="" bug="" in="" its="" protected-mode="" int="" 2d="" handler="" which="" causes="" a="" crash="" when="" int="" 2d="" is="" invoked="" from="" v86="" mode="" --------t-2d---------------------------------="" int="" 2d="" -="" alternate="" multiplex="" interrupt="" specification="" (amis)="" [v3.5.1]="" ah="multiplex" number="" al="function" 00h="" installation="" check="" return:="" al="00h" if="" free="" al="FFh" if="" multiplex="" number="" in="" use="" cx="binary" version="" number="" (ch="major," cl="minor)" dx:di="" -=""> signature string (see #1357) identifying
				    the program using the multiplex number
	    01h get entry point
		Return: AL = 00h if all API calls via INT 2D
			AL = FFh if entry point supported
			    DX:BX -> entry point for bypassing interrupt chain
	    02h uninstall
		DX:BX = return address for successful uninstall (may be
			ignored by TSR)
		Return: AL = status
			    00h not implemented
			    01h unsuccessful
			    02h can not uninstall yet, will do so when able
			    03h safe to remove, but no resident uninstaller
				(TSR still enabled)
				BX = segment of memory block with resident code
			    04h safe to remove, but no resident uninstaller
				(TSR now disabled)
				BX = segment of memory block with resident code
			    05h not safe to remove now, try again later
			    FFh successful
			return at DX:BX with AX destroyed if successful and
			  TSR honors specific return address
	    03h request pop-up
		Return: AL = status
			    00h not implemented or TSR is not a pop-up
			    01h can not pop up at this time, try again later
			    02h can not pop up yet, will do so when able
			    03h already popped up
			    04h unable to pop up, user intervention required
				BX = standard reason code
				    0000h unknown failure
				    0001h interrupt chain passes through memory
					  which must be swapped out to pop up
				    0002h swap-in failed
				CX = application's reason code if nonzero
			    FFh TSR popped up and was exited by user
				BX = return value
				    0000h no return value
				    0001h TSR unloaded
				    0002h-00FFh reserved
				    0100h-FFFFh application-dependent
	    04h determine chained interrupts
		BL = interrupt number (except 2Dh)
		Return: AL = status
			    00h not implemented
			    01h (obsolete) unable to determine
			    02h (obsolete) interrupt hooked
			    03h (obsolete) interrupt hooked, address returned
				DX:BX -> TSR's interrupt BL handler
			    04h list of hooked interrupts returned
				DX:BX -> interrupt hook list (see #1358)
			    FFh interrupt not hooked
		Notes:	since INT 2D is known to be hooked, the resident code
			  need not test for BL=2Dh (to minimize its size), and
			  the return value is therefore undefined in that case.
			BL is ignored if the TSR returns AL=04h; in that case,
			  the caller needs to scan the return list rather than
			  making additional calls to this function.  If the
			  return is not 00h or 04h, then the caller must cycle
			  through the remaining interrupt numbers it wishes to
			  check.
			return values 01h thru 03h are disparaged and will be
			  removed from the next version of this specification;
			  they are included for compatibility with version 3.3,
			  though they were probably never used in any
			  implementation
	    05h get hotkeys
		Return: AL = status
			    00h not implemented
			    FFh supported
				DX:BX -> hotkey list (see #1359)
	    06h-0Fh reserved for future enhancements
		Return: AL = 00h (not implemented)
	    other  application-dependent
Notes:	programs should not use fixed multiplex numbers; rather, a program
	  should scan all multiplex numbers from 00h to FFh, remembering the
	  first unused multiplex in case the program is not yet installed.
	  For multiplex numbers which are in use, the program should compare
	  the first 16 bytes of the signature string to determine whether it
	  is already installed on that multiplex number.  If not previously
	  installed, it should use the first free multiplex number.
	functions other than 00h are not valid unless a program is installed
	  on the selected multiplex number
	to be considered fully compliant with version 3.5 of the specification,
	  programs must implement at least functions 00h, 02h (no resident
	  uninstall code required), and 04h (return value 04h).	 TSRs that
	  provide hotkeys with which the user can activate them must also
	  implement function 05h.  The absolute minimum fully-compliant
	  implementation has an overhead of 64 bytes (80 bytes with function
	  05h) plus 22 bytes per hooked interrupt (for the interrupt sharing
	  protocol header and hook list entry).
	the signature string and description may be used by memory mappers
	  to display the installed programs
	users of this proposal should adhere to the IBM interrupt sharing
	  protocol (see #1363), which will permit removal of TSRs in
	  arbitrary order and interrupt handler reordering.  All TSRs
	  following this proposal should be removable, though they need not
	  keep the code for removing themselves resident; it is acceptable
	  for a separate program to perform the removal.
	A sample implementation including example TSRs and utility programs
	  may be found in a separate package distributed as AMISLnnn.ZIP
	  (AMISL091.ZIP as of this writing).
	Please let me know if you choose to follow this proposal.  The
	  signature and a list of the private API calls you use would be
	  appreciated, as well.
SeeAlso: INT 2F
Index:	installation check;Alternate Multiplex Interrupt Specification
Index:	installation check;AMIS|installation check;FASTMOUS
Index:	installation check;SPELLER|installation check;Monitor
Index:	installation check;NOLPT|installation check;NOTE
Index:	installation check;RBkeyswp|installation check;SWITCHAR
Index:	installation check;VGABLANK|installation check;EATMEM
Index:	installation check;RECALL|installation check;XPTR2
Index:	uninstall;Alternate Multiplex Interrupt Specification|uninstall;AMIS
Index:	entry point;Alternate Multiplex Interrupt|entry point;AMIS

Format of AMIS signature string:
Offset	Size	Description	(Table 1357)
 00h  8 BYTEs	blank-padded manufacturer's name (possibly abbreviated)
 08h  8 BYTEs	blank-padded product name
 10h 64 BYTEs	ASCIZ product description (optional, may be a single 00h)
Note:	it is not necessary to reserve a full 64 bytes for the description,
	  just enough to store the actual ASCIZ string
SeeAlso: #1364

Format of AMIS interrupt hook list [array]:
Offset	Size	Description	(Table 1358)
 00h	BYTE	interrupt number (last entry in array is 2Dh)
 01h	WORD	offset within hook list's segment of the interrupt handler
		this will point at the initial short jump of the interrupt
		  sharing protocol header (see #1363)

Format of AMIS hotkey list:
Offset	Size	Description	(Table 1359)
 00h	BYTE	type of hotkey checking (see #1360)
 01h	BYTE	number of hotkeys (may be zero if TSR can disable hotkeys)
 02h 6N BYTEs	array of hotkey definitions
		(one per hotkey, first should be primary hotkey)
		Offset	Size	Description
		 00h	BYTE	hotkey scan code (00h/80h if shift states only)
				hotkey triggers on release if bit 7 set
		 01h	WORD	required shift states (see #1361)
		 03h	WORD	disallowed shift states (see #1361)
		 05h	BYTE	hotkey flags (see #1362)
Notes:	except for bit 7, the shift states correspond exactly to the return
	  values from INT 16/AH=12h.  A set bit in the required states word
	  indicates that the corresponding shift state must be active when the
	  hotkey's scan code is received for the hotkey to be recognized; a
	  clear bit means that the corresponding state may be ignored.	A set
	  bit in the disallowed shift states word indicates that the
	  corresponding shift state must be inactive.
	for the disallowed-states word, if one of the "either" bits is set,
	  then both the corresponding left bit and right bit must be set
	examples:
		Ctrl-Alt-Del monitoring: 53h 000Ch 0003h 06h
		Alt-key tap (DESQview):	 B8h 0000h 0007h 08h
		Shf-Shf-N (NOTE.COM):	 31h 0003h 000Ch 00h
Index:	hotkeys;AMIS

Bitfields for type of AMIS hotkey checking:
Bit(s)	Description	(Table 1360)
 0	checks before chaining INT 09
 1	checks after chaining INT 09
 2	checks before chaining INT 15/AH=4Fh
 3	checks after chaining INT 15/AH=4Fh
 4	checks on INT 16/AH=00h,01h,02h
 5	checks on INT 16/AH=10h,11h,12h
 6	checks on INT 16/AH=20h,21h,22h
 7	reserved (0)

Bitfields for AMIS shift states:
Bit(s)	Description	(Table 1361)
 0	right shift pressed
 1	left shift pressed
 2	either control key pressed
 3	either Alt key pressed
 4	ScrollLock active
 5	NumLock active
 6	CapsLock active
 7	either shift key pressed
 8	left control key pressed
 9	left Alt key pressed
 10	right control key pressed
 11	right Alt key pressed
 12	ScrollLock pressed
 13	NumLock pressed
 14	CapsLock pressed
 15	SysReq key pressed
Notes:	if bit 2 is set, either control key may be pressed for the hotkey; if
	  bits 8 and 10 are both set, then both control keys must be pressed.
	  Similarly for bits 3 and 9/11, as well as 7 and 0/1.
	the SysReq key is often labeled SysRq

Bitfields for AMIS hotkey flags:
Bit(s)	Description	(Table 1362)
 0	hotkey chained before processing
 1	hotkey chained after processing
 2	others should pass through this hotkey so that it can be monitored
 3	hotkey will not activate if other keys pressed/released before hotkey
	  press is completed
 4	this key is remapped into some other key
 5-7	reserved (0)

Format of interrupt sharing protocol interrupt handler entry point:
Offset	Size	Description	(Table 1363)
 00h  2 BYTEs	short jump to actual start of interrupt handler, immediately
		  following this data block (EBh 10h)
 02h	DWORD	address of next handler in chain
 06h	WORD	signature 424Bh
 08h	BYTE	EOI flag
		00h software interrupt or secondary hardware interrupt handler
		80h primary hardware interrupt handler (will issue EOI)
 09h  2 BYTEs	short jump to hardware reset routine
		must point at a valid FAR procedure (may be just RETF)
 0Bh  7 BYTEs	reserved (0)
SeeAlso: INT F1"Common ISDN API",#2615

(Table 1364)
Values of AMIS signatures known to be in use:
 'Byrial J' 'EKLAVO  '	permits keyboard entry of Esperanto accented letters
 'CoveSoft' 'Burnout+'	shareware screen saver Burnout Plus
 'Crynwr  ' 'SPELLER '	TSR spelling-checker
 'CSJewell' 'Modula3L'	Curtis Jewell's Modula-3 compiler (non-TSR)
 'DAISYCHA' 'INDRIVER'	Advanced Parallel Port daisy chain driver (vendor name
			  in product description field, if desired)
			(see also INT 2D/AL=DCh)
 'ECLIPSE ' 'PLUMP   '	Eclipse Software's printer and plotter spooler
 'GraySoft' 'GIPC    '	GraySoft's Inter-Process Communications driver
 'heathh  ' 'Monitor '
 'Helge O '		TSRs by Helge Olav Helgesen
 'J. Berry' 'RATSR   '	RemoteAccess Network Manager workstation module
 'JWB	  ' 'RAMLIGHT'	James Birdsall's on-screen RAMdisk activity indicator
 'M Better' 'iHPFS   '	Marcus Better's HPFS filesystem driver for DOS
 'Nildram ' 'ST	     '	Screen Thief graphics screen grabber
 'R-Ware  ' 'dLite   '	run-time data decompression TSR
 'Ralf B  ' 'FASTMOUS'	example TSR included with sample AMIS library code
 'Ralf B  ' 'NOLPT n '	example TSR -- turn LPTn into bit-bucket
 'Ralf B  ' 'NOTE    '	example TSR -- popup note-taker
 'Ralf B  ' 'RBkeyswp'	RBkeyswap v3.0+ -- swap Esc/~ and LCtrl/CapsLock keys
 'Ralf B  ' 'SWITCHAR'	example TSR -- add switchar() support removed from DOS5
 'Ralf B  ' 'VGABLANK'	example TSR -- VGA-only screen blanker
 'Sally IS' 'Mdisk   '	removeable, resizeable RAMdisk
 'Sally IS' 'Scr2Tex '	screen dumper with output in (La)Tex format
 'Thaco	  ' 'NEST    '	Eirik Pedersen's programmer's delimiter matcher
 'TifaWARE' 'EATMEM  '	George A. Theall's public domain memory restrictor for
			testing programs (v1.1+)
 'TifaWARE' 'RECALL  '	public domain commandline editor and history (v1.2+)
 'Todd	  ' 'XPTR2   '	PC-to-Transputer interface by Todd Radel
SeeAlso: #1357
--------N-2D--10-----------------------------
INT 2D - RATSR 2.0+ - GET STATUS
	AL = 10h
	AH = AMIS multiplex number for RATSR
Return: AL = status
	    01h listening (no connection)
	    02h receiving	      \
	    03h sending		       > station being monitored
	    04h initializing receive  /
	AH = keyboard lock status (00h unlocked, 01h locked)
Program: RATSR is a utility by James Berry provided with
	  RemoteAccess/Professional, a commercial bulletin board system, that
	  allows remote control of a station over a network
SeeAlso: INT 2D"AMIS"
--------d-2D--10-----------------------------
INT 2D - dLite 1.0+ - GET PARAMETER BLOCK ADDRESS
	AL = 10h
	AH = AMIS multiplex number for dLite
Return: CF clear if successful
	    ES:BX -> parameter block (see #1365)
	CF set on error
Program: dLite is a shareware TSR by Rainer Schuetze which transparently
	  expands compressed files when they are read
SeeAlso: AL=11h"dLite",AL=12h"dLite",INT 21/AX=FEDCh"PCMANAGE"

Format of dLite parameter block:
Offset	Size	Description	(Table 1365)
 00h	BYTE	TSR flags (see #1366)
 01h	WORD	maximum number of programs needing original filesize
 03h	WORD	current number of programs needing original filesize
 05h	WORD	maximum number of files that can be handled by dLite (should
		  be the same as FILES= in CONFIG.SYS)
 07h	WORD	offset (in the same segment as the parameter block) of the
		  table of programs needing the original filesize (8 bytes
		  each,	without path or extension, uppercase, and zero \
		  terminated if	shorter than 8 bytes)

Bitfields for dLite TSR flags:
Bit(s)	Description	(Table 1366)
 0	deny FCB access
 1	dLite sleeping rather than activated
 2	always indicate original filesize when reading directory entries,
	  rather than only for specified programs
 3-7	reserved
SeeAlso: #1365
--------V-2D--10-----------------------------
INT 2D - Burnout Plus v3.00 - GET STATE/CONTROL INFORMATION
	AL = 10h
	AH = AMIS multiplex number for Burnout Plus
Return: AL = 01h
	BX = Burnout Plus status (see #1367)
	CX = record of features loaded (see #1368)
	ES:DI -> Burnout Plus control structure (see #1369)
Program: Burnout Plus is a DOS screen saver from Cove Software
SeeAlso: INT 14/AX=AA01h,INT 2D"AMIS"
Index:	screen saver;Burnout Plus

Bitfields for Burnout Plus status:
Bit(s)	Description	(Table 1367)
 0	screen is blanked
 1	MS Windows is active (Burnout Plus deactivated)
 2-15	reserved

Bitfields for Burnout Plus features loaded/features enabled:
Bit(s)	Description	(Table 1368)
 0	mouse activity monitor
 1	passkey support
 2	password support
 3	continuous clear
 4	software blanking
 5	video activity monitor
 6	disk activity monitor
 7	activating keystroke suppression
SeeAlso: #1369

Format of Burnout Plus control structure:
Offset	Size	Description	(Table 1369)
 00h	BYTE	size of structure in bytes
 01h	WORD	Burnout Plus version
 03h	WORD	screen blanking reset count in clock ticks
 05h	WORD	current countdown value in clock ticks
 07h	BYTE	type of timeout specification
 08h	BYTE	instant-blank hotkey
 09h	WORD	extended status information (see #1370)
		the bits for password, passkey, and software blanking are
		  ignored and cannot be enabled or disabled externally
 0Bh	WORD	features enabled (see #1368)
Note:	all fields except the first two may be modified by external programs
	  to affect the operation of Burnout Plus
Index:	hotkeys;Burnout Plus

Bitfields for extended Burnout Plus status information:
Bit(s)	Description	(Table 1370)
 0	Burnout Plus disabled
 1	force screen to blank on next clock tick
 2	restore screen if currently blanked
 3-15	reserved
Note:	1 and 2 are automatically cleared by Burnout Plus after blanking
	  or restoring the screen
SeeAlso: #1369
--------V-2D--10-----------------------------
INT 2D U - Screen Thief v1.00 - FREE HIGH MEMORY BUFFERS
	AL = 10h
	AH = AMIS multiplex number for Screen Thief
Return: nothing
Program: Screen Thief is a graphics screen grabber
Note:	releases any code and data stored in EMS, DOS UMBs, or XMS UMBs, but
	  does not release the low-memory stub; this may be used to effect a
	  partial uninstall if INT 2D/AL=02h fails
SeeAlso: INT D8"Screen Thief"
--------i-2D--10-----------------------------
INT 2D U - RAMLIGHT v1.0 - GET MONITORING INFORMATION
	AL = 10h
	AH = AMIS multiplex number for RAMLIGHT
Return: ES:BX -> array of fake device driver headers used in monitoring
	CX = number of drives being monitored???
--------d-2D--11-----------------------------
INT 2D - dLite 1.0+ - CHECK FOR dPressed FILE AND GET ORIGINAL SIZE
	AL = 11h
	AH = AMIS multiplex number for dLite
	BX = file handle
Return: CF clear if successful
	    DX:AX = size of uncompressed file
	CF set on error (not dPressed file)
SeeAlso: AL=10h"dLite",AL=12h"dLite"
--------d-2D--12-----------------------------
INT 2D - dLite 1.0+ - CHECK FOR dPressed FILE AND GET COMPRESSED SIZE
	AL = 12h
	AH = AMIS multiplex number for dLite
	BX = file handle
Return: CF clear if successful
	    DX:AX = size of compressed file
	CF set on error (not dPressed file)
SeeAlso: AL=10h"dLite",AL=11h"dLite"
--------b-2D--DC-----------------------------
INT 2D C - DAISY.SYS - BROADCAST: CHAIN RESCANNED
	AL = DCh
	AH = AMIS multiplex number for signature 'DAISYCHA' 'INDRIVER'
	DL = LPT Port Rescanned
Program: DAISY.SYS is a daisy chain manager for parallel port peripherals
	  conforming to the Advanced Parallel Port Committee's daisy chain
	  specification.
Desc:	This Broadcast is sent whenever daisy chain IDs are reassigned to
	  warn parallel port device drivers that their daisy chain ID may
	  have been changed.
Note:	This function is a callout from DAISY.SYS, NOT a call into DAISY.SYS
SeeAlso: INT 17/AX=0200h"Advanced Parallel Port"
--------!---Section--------------------------
Interrupt List, part 7 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------l-2E---------------------------------
INT 2E U - DOS 2+ - PASS COMMAND TO COMMAND INTERPRETER FOR EXECUTION
	DS:SI -> commandline to execute (see #1371)
Return: all registers except CS:IP destroyed
	AX = status (4DOS v4.0)
	   0000h successful
	   FFFFh error before processing command (not enough memory, etc)
	   other error number returned by command
Notes:	this call allows execution of arbitrary commands (including COMMAND.COM
	  internal commands) without loading another copy of COMMAND.COM
	if COMMAND.COM is the user's command interpreter, the primary copy
	  executes the command; this allows the master environment to be
	  modified by issuing a "SET" command, but changes in the master
	  environment will not become effective until all programs descended
	  from the primary COMMAND.COM terminate
	since COMMAND.COM processes the string as if typed from the keyboard,
	  the transient portion needs to be present, and the calling program
	  must ensure that sufficient memory to load the transient portion can
	  be allocated by DOS if necessary
	results are unpredictable if invoked by a program run from a batch file
	  because this call is not reentrant and COMMAND.COM uses the same
	  internal variables when processing a batch file
	hooked but ignored by 4DOS v3.0 COMMAND.COM replacement unless SHELL2E
	  has been loaded
	the MS-DOS 5 Programmer's Reference calls this "Reload Transient"

Format of DOS commandline:
Offset	Size	Description	(Table 1371)
 00h	BYTE	length of command string, not counting trailing CR
 01h	var	command string
  N	BYTE	0Dh (CR)
--------O-2E---------------------------------
INT 2E UP - Windows NT - NATIVE API
	EAX = function number
	EDX = address of parameter block
Return: ???
--------l-2E----BXE22E-----------------------
INT 2E - 4DOS v2.x-3.03 SHELL2E.COM - UNINSTALL
	BX = E22Eh
	DS:SI -> zero byte
Return: if successful, SHELL2E terminates itself with INT 21/AH=4Ch
----------2F---------------------------------
INT 2F - Multiplex - NOTES
	AH = identifier of program which is to handle the interrupt
		00h-7Fh reserved for DOS
	   B8h-BFh reserved for networks
	   C0h-FFh reserved for applications
	AL is the function code
   This is a general mechanism for verifying the presence of a TSR and
   communicating with it.  When searching for a free identifier code for AH
   using the installation check (AL=00h), the calling program should set
   BX/CX/DX to 0000h and must not depend on any registers other than CS:IP
   and SS:SP to be valid on return, since numerous programs now use additional
   registers on input and/or output for the installation check.
Notes:	Since the multiplex chain is growing so long, and beginning to
	  experience multiplex number collisions, I am proposing an alternate
	  multiplex interrupt on INT 2D.  If you decide to use the alternate
	  multiplex, please let me know.
	DOS and some other programs return values in the flags register, so
	  any TSR which chains by calling the previous handler rather than
	  jumping to it should ensure that the returned flags are preserved
	  and passed back to the original caller
SeeAlso: INT 2D
--------t-2F---------------------------------
INT 2F - BMB Compuscience Canada Utilities Interface - INSTALLATION CHECK
	AH = xx (dynamically assigned based upon a search for a multiplex
		 number which doesn't answer installed)
	AL = 00h installation check
	ES:DI = EBEBh:BEBEh
Return: AL = 00h not installed
	     01h not installed, not OK to install
	     FFh installed; if ES:DI was EBEBh:BEBEh on entry, ES:DI will point
		 to a string of the form 'MMMMPPPPPPPPvNNNN' where MMMM is a
		 short form of the manufacturer's name, PPPPPPPP is a product
		 name and NNNN is the product's version number
--------t-2F---------------------------------
INT 2F - Ross Wentworth's Turbo Pascal POPUP LIBRARY
	AH = programmer-selected multiplex number
	AL = function
	    00h installation check
		Return: AL = FFh if installed
	    01h get TSR interrupt vectors
		Return: DX:AX -> vector table (see #1372)
	    02h get TSR code segment
		Return: AX = code segment for all interrupt handlers
	    03h call user exit routine and release TSR's memory
	    04h get signature string
		Return: DX:AX -> counted string containing signature
	    05h get TSR's INT 2F handler
		Return: DX:AX -> INT 2F handler
		 06h enable/disable TSR
		BL = new state (00h disabled, 01h enabled)
	    07h activate TSR (popup if not disabled)
	    08h get hotkeys
		BL = which hotkey (00h = hotkey 1, 01h = hotkey 2)
		Return: AX = hotkey (AH = keyflags, AL = scancode)
	    09h set hotkey
		BL = which hotkey (00h = hotkey 1, 01h = hotkey 2)
		CX = new hotkey (CH = keyflags, CL = scancode)
	    0Ah-1Fh reserved
Index:	installation check;Ross Wentworth POPUP library
Index:	hotkeys;Ross Wentworth POPUP library

Format of POPUP vector table entry:
Offset	Size	Description	(Table 1372)
 00h	BYTE	vector number (00h = end of table)
 01h	DWORD	original vector
 05h	WORD	offset of interrupt handler in TSR's code segment
--------t-2F---------------------------------
INT 2F - CiriSOFT Spanish University of Valladolid TSR's Interface
	AH = xx (dynamically assigned based upon a search for a multiplex
		 number from C0h to FFh which doesn't answer installed)
	AL = 00h installation check
	ES:DI = 1492h:1992h
Return: AL = 00h not installed
	     01h not installed, not OK to install
	     FFh installed; and if ES:DI was 1492h:1992h on entry, ES:DI will
		   point to author_name_ver table (see #1373)
	AH = FFh
Note:	this interface permits advanced communication with TSRs: it is possible
	  to make a generic uninstall utility, advanced TSR relocator programs
	  in order to fit fragmented memory areas, etc.
See also: INT 2D"AMIS",INT 2F"Compuscience"
Index:	installation check;CiriSOFT TSR interface
Index:	uninstall;CiriSOFT TSR interface

Format of CiriSOFT author_name_ver table:
Offset	Size	Description	(Table 1373)
 -16	WORD	segment of the start of the resident TSR code (CS in programs
		  with PSP, XMS upper memory segment if installed as UMB...)
 -14	WORD	offset of the start of the resident TSR code (frequently 100h
		  in *.COM programs and 0 in upper memory TSR's).
 -12	WORD	memory used by TSR (in paragraphs). Knowing the memory area
		  used by TSR is possible to determine if hooked vectors are
		  still pointing it (and if it is safe to uninstall).
 -10	BYTE	characteristics byte (see #1374)
 -9	BYTE	number of multiplex entry used (redefinition available). Note
		  that the TSR must use THIS variable in it's INT 2Fh handler.
 -8	WORD	offset to vector_area table (see #1375)
 -6	WORD	offset to extra_area table (see #1376,bit 7 in offset -10)
 -4   4 BYTEs	signature string "*##*"
 00h	var	"AUTHOR:PROGRAM_NAME:VERSION",0	 (variable length, this area
		  is used in order to determine if the TSR is already resident
		  and it's version code; the ':' char is used as delimiter)

Bitfields for CiriSOFT characteristics byte:
Bit(s)	Description	(Table 1374)
 0-2	type
	000 normal program (with PSP)
	001 upper XMS memory block (needed HIMEM.SYS function to free memory
	      when uninstalling)
	010 device driver (*.SYS)
	011 device driver in EXE format
	1xx others (reserved)
 3-6	reserved
 7	set if extra_table defined and supported (see #1376)
SeeAlso: #1373

Format of CiriSOFT vector_area table:
Offset	Size	Description	(Table 1375)
 -1	BYTE	number of vectors intercepted by TSR
 00h	BYTE	first vector number
 01h	DWORD	first vector pointer before installing the TSR
 05h	BYTE	second vector number
 06h	DWORD	second vector pointer before installing the TSR
 0Ah	...	(and so on)
Note:	the TSR must use these variables to invoke the previous interrupt
	  handler routines
SeeAlso: #1373

Format of extra_area table (needed only to improve relocation feature):
Offset	Size	Description	(Table 1376)
 00h	WORD	offset to external_ctrl table (see #1377)
		0000h if not supported
 02h	WORD	reserved for future use (0)
SeeAlso: #1373

Format of CiriSOFT external_ctrl table:
Offset	Size	Description	(Table 1377)
 00h	BYTE	bit 0: TSR is relocatable (no absolute segment references)
 01h	WORD	offset to a variable which can activate/inhibit the TSR
 ---And if bit 0 in offset 00h is off:
 03h	DWORD	pointer to ASCIZ pathname for executable file which supports
		  /SR parameter (silent installation & inhibit)
 07h	DWORD	pointer to first variable to initialize on the copy reloaded
		  from the previous TSR still resident
 0Bh	DWORD	pointer to last variable (all variables packed in one block)
--------c-2F00-------------------------------
INT 2F U - DOS 2.x only PRINT.COM - ???
	AH = 00h
	???
Return: ???
Notes:	DOS 2.x PRINT.COM does not chain to previous INT 2F handler
	values in AH other than 00h or 01h cause PRINT to return the number of
	  files in the queue in AH
SeeAlso: AH=01h
--------P-2F00-------------------------------
INT 2F U - PSPRINT - PRINT JOB CONTROL
	AH = 00h
	???
Return: ???
--------c-2F0080-----------------------------
INT 2F - DOS 3.1+ PRINT - GIVE PRINT A TIME SLICE
	AX = 0080h
Return: after PRINT executes
Notes:	PRINT returns AL=01h if AH=00h but AL is not 80h on entry
	this function is not supported by the Novell DOS 7 PRINT.COM
--------N-2F00D8-----------------------------
INT 2F - Personal NetWare - VLM - ???
	AX = 00D8h
	???
Return: ???
Note:	hooked by one of the .VLMs loaded by VLM.EXE v1.10, but apparently a
	  NOP
--------c-2F01-------------------------------
INT 2F U - DOS 2.x only PRINT.COM - ???
	AH = 01h
	???
Return: ???
Notes:	DOS 2.x PRINT.COM does not chain to previous INT 2F handler
	values in AH other than 00h or 01h cause PRINT to return the number of
	  files in the queue in AH
SeeAlso: AH=00h
--------c-2F0100-----------------------------
INT 2F - DOS 3+ PRINT - INSTALLATION CHECK
	AX = 0100h
Return: AL = status
	    00h not installed
		 01h not installed, but not OK to install
	    FFh installed
		AH = 00h (Novell DOS 7)
SeeAlso: AX=0101h
--------c-2F0100SI20D6-----------------------
INT 2F U - PrintCache 3.1 PRINT.COM - INSTALLATION CHECK
	AX = 0100h
	SI = 20D6h
	DI = 8761h
Return: AX = 00FFh if installed
	DI = 0001h if PrintCache's PRINT.COM installed and magic values match
	    SI = resident code segment
Program: PrintCache PRINT.COM is a DOS PRINT replacement included in
	  LaserTools' PrintCache memory/disk-based print spooler package
Note:	if either of SI or DI differ from the indicated magic values, only AX
	  will be modified on return, for compatibility with DOS PRINT
SeeAlso: AX=0101h/SI=20D6h,AX=C000h"PCACHE"
--------c-2F0101-----------------------------
INT 2F - DOS 3+ PRINT - SUBMIT FILE FOR PRINTING
	AX = 0101h
	DS:DX -> submit packet (see #1378)
Return: CF clear if successful
	    AL = status
		01h added to queue
		9Eh now printing
	CF set on error
	    AX = error code (see #1379,#0885 at INT 21/AH=59h)
SeeAlso: AX=0102h

Format of PRINT submit packet:
Offset	Size	Description	(Table 1378)
 00h	BYTE	level (must be 00h)
 01h	DWORD	pointer to ASCIZ filename (no wildcards)

(Table 1379)
Values for PRINT error code:
 0001h	invalid function
 0002h	file not found
 0003h	path not found
 0004h	out of file handles
 0005h	access denied
 0008h	print queue full
 0009h	spooler busy
 000Ch	name too long
 000Fh	invalid drive
--------c-2F0101SI20D6-----------------------
INT 2F U - PrintCache v3.1 PRINT.COM - SUBMIT FILE FOR PRINTING
	AX = 0101h
	SI = 20D6h
	DI = 8761h
	DS:DX -> submit packet (see #1378)
	CL = print options
	    bit 4: use default options
Return: CF clear if successful
	    AL = status
		01h added to queue
		9Eh now printing
	CF set on error
	    AX = error code (see #1379)
Program: PrintCache PRINT.COM is a DOS PRINT replacement included in
	  LaserTools' PrintCache memory/disk-based print spooler package
Note:	if either SI or DI differs from the indicated magic values on entry,
	  PrintCache will use the default print options for the file for
	  compatibility with DOS PRINT
SeeAlso: AX=0100h/SI=20D6h,AX=0101h,AX=0107h"PrintCache"
--------c-2F0102-----------------------------
INT 2F - DOS 3+ PRINT - REMOVE FILE FROM PRINT QUEUE
	AX = 0102h
	DS:DX -> ASCIZ filename (wildcards allowed)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1379)
SeeAlso: AX=0101h,AX=0103h
--------c-2F0103-----------------------------
INT 2F - DOS 3+ PRINT - CANCEL ALL FILES IN PRINT QUEUE
	AX = 0103h
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1379)
SeeAlso: AX=0102h
--------c-2F0104-----------------------------
INT 2F - DOS 3+ PRINT - FREEZE PRINT QUEUE TO READ JOB STATUS
	AX = 0104h
Return: CF clear if successful
	    DX = error count since status last read
	    DS:SI -> print queue
	CF set on error
	    AX = error code (see #1379)
Desc:	get the list of print jobs, temporarily suspending PRINT's activities
	  to avoid changing the list while it is being examined
Notes:	the print queue is an array of 64-byte ASCIZ filenames terminated by
	  an empty filename; the first name is the file currently being printed
	printing is stopped until AX=0105h is called to prevent the queue
	  from changing while the filenames are being read
SeeAlso: AX=0101h,AX=0105h
--------c-2F0105-----------------------------
INT 2F - DOS 3+ PRINT - RESTART PRINT QUEUE AFTER STATUS READ
	AX = 0105h
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1379)
Desc:	restart PRINT's activities once an application finishes examining the
	  print queue
SeeAlso: AX=0104h
--------c-2F0106-----------------------------
INT 2F - DOS 3.3+ PRINT - GET PRINTER DEVICE
	AX = 0106h
Return: CF set if files in print queue
	    AX = error code 0008h (queue full)
	    DS:SI -> device driver header
	CF clear if print queue empty
	    AX = 0000h
Desc:	determine which device, if any, PRINT is currently using for output
Notes:	undocumented prior to the release of MS-DOS 5.0
	this function can be used to allow a program to avoid printing to the
	  printer on which PRINT is currently performing output
SeeAlso: AX=0104h
--------c-2F0107-----------------------------
INT 2F U - PrintCache v3.1 PRINT.COM - SET TRAILING FORM FEEDS
	AX = 0107h
	CL bit 0: output form feed between print jobs
Return: AL destroyed
SeeAlso: AX=0100h/SI=20D6h,AX=0101h/SI=20D6h
--------N-2F0200-----------------------------
INT 2F U - PC LAN PROGRAM REDIR/REDIRIFS internal - INSTALLATION CHECK
	AX = 0200h
Return: AL = FFh if installed
Desc:	determine whether the PC LAN Program redirector is installed
SeeAlso: AX=0201h,AX=0203h
--------N-2F0201-----------------------------
INT 2F U - PC LAN PROGRAM REDIR/REDIRIFS internal - ???
	AX = 0201h
Return: nothing???
Notes:	this function is called by the DOS 3.3+ PRINT.COM
	AX=0202h appears to be the opposite function
	these functions are supposedly used to signal opening and closing of
	  printers
SeeAlso: AX=0202h
--------N-2F0202-----------------------------
INT 2F U - PC LAN PROGRAM REDIR/REDIRIFS internal - ???
	AX = 0202h
	???
Return: nothing???
Notes:	this function is called by the DOS 3.3+ PRINT.COM
	these functions are supposedly used to signal opening and closing of
	  printers
SeeAlso: AX=0201h
--------N-2F0203-----------------------------
INT 2F U - PC LAN PROGRAM REDIR/REDIRIFS internal - ???
	AX = 0203h
Return: nothing???
Notes:	this function is called by the DOS 3.3+ PRINT.COM
	AX=0204h appears to be the opposite function
	these functions are supposedly used to signal opening and closing of
	  printers
SeeAlso: AX=0200h,AX=0204h
--------N-2F0204-----------------------------
INT 2F U - PC LAN PROGRAM REDIR/REDIRIFS internal - ???
	AX = 0204h
	???
Return: nothing???
Notes:	this function is called by the DOS 3.3+ PRINT.COM
	AX=0203h appears to be the opposite function
	these functions are supposedly used to signal opening and closing of
	  printers
SeeAlso: AX=0200h,AX=0203h
--------N-2F---------------------------------
INT 2F U - PC LAN PROGRAM REDIR/REDIRIFS internal - ???
	AX = 02xxh
	???
Return: ???
--------l-2F0500-----------------------------
INT 2F U - DOS 3+ CRITICAL ERROR HANDLER - INSTALLATION CHECK
	AX = 0500h
Return: AL = 00h not installed, OK to install
	     01h not installed, can't install
	     FFh installed
Desc:	determine whether a critical error message override is installed
Note:	this set of functions allows a user program to partially or completely
	  override the default critical error handler's message in COMMAND.COM
SeeAlso: AH=05h,INT 24
--------l-2F05-------------------------------
INT 2F CU - DOS 3+ CRITICAL ERROR HANDLER - EXPAND ERROR INTO STRING
	AH = 05h
---DOS 3.x---
	AL = extended error code (not zero)
---DOS 4+ ---
	AL = error type
	    01h DOS extended error code
	    02h parameter error
	BX = error code
Return: CF clear if successful
	    ES:DI -> ASCIZ error message (read-only)
	    AL = completion state
		00h message requires completion with device name, drive, etc.
		01h message is complete as returned
	CF set if error code can't be converted to string
	    AX,DI,ES destroyed
	other flags corrupted
Notes:	called at start of COMMAND.COM's default critical error handler if
	  installed by a user program, allowing partial or complete overriding
	  of the default error messages
	subfunction 02h is called by many DOS 4 external programs
	DR-DOS's COMMAND.COM appends additional info ("0 files copied") to the
	  returned string
SeeAlso: AX=0500h,AX=122Eh,INT 24
--------U-2F0600-----------------------------
INT 2F - DOS 3+ ASSIGN - INSTALLATION CHECK
	AX = 0600h
Return: AL = status
	    00h not installed
	    01h not installed, but not OK to install
	    FFh installed
Notes:	ASSIGN is not a TSR in DR-DOS 5.0; it is internally replaced by SUBST
	  (see INT 21/AH=52h)
	undocumented prior to the release of DOS 5.0
SeeAlso: AX=0601h,INT 21/AH=52h
--------U-2F0601-----------------------------
INT 2F U - DOS 3+ ASSIGN - GET DRIVE ASSIGNMENT TABLE
	AX = 0601h
Return: ES = segment of ASSIGN work area and assignment table
Note:	under DOS 3+, the 26 bytes starting at ES:0103h specify which drive
	  each of A: to Z: is mapped to.  Initially set to 01h 02h 03h....
SeeAlso: AX=0600h
--------D-2F0800-----------------------------
INT 2F U - DRIVER.SYS support - INSTALLATION CHECK
	AX = 0800h
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
		 FFh installed
Desc:	determine whether the internal support code used by DRIVER.SYS is
	  present; it is always present in DOS 3.2+
Note:	supported by DR-DOS 5.0
--------D-2F0801-----------------------------
INT 2F U - DRIVER.SYS support - ADD NEW BLOCK DEVICE
	AX = 0801h
	DS:DI -> drive data table (see #1386,#1387,#1388)
Return: AX,BX,SI,ES destroyed
Notes:	moves down internal list of drive data tables, copying and modifying
	  the drive description flags word for tables referencing same physical
	  drive
	the data table is appended to the chain of tables
	supported by DR-DOS 5.0
SeeAlso: AX=0803h
--------D-2F0802-----------------------------
INT 2F U - DRIVER.SYS support - EXECUTE DEVICE DRIVER REQUEST
	AX = 0802h
	ES:BX -> device driver request header (see #1382)
Return: request header updated as per requested operation
Notes:	supported by DR-DOS 5.0
	DOS 3.2 executes this function on any AL value from 02h through F7h;
	  DOS 4+ executes this function on AL=02h and AL=04h-F7h
	the command codes (see #1380) and structures described below apply
	  to all drivers which support the appropriate commands; this call is
	  just one of a number of ways in which a device driver request may
	  be invoked
	this call reportedly leaves one word on the stack under MS-DOS 6.2,
	  so the stack pointer should be saved and restored around the call
	  to this function
SeeAlso: AX=0800h,AX=0801h,AX=0803h,INT 21/AH=52h,INT 21/AH=99h,INT 21/AH=9Ah

(Table 1380)
Values for device driver command code:
 00h	INIT
 01h	MEDIA CHECK (block devices)
 02h	BUILD BPB (block devices)
 03h	IOCTL INPUT
 04h	INPUT
 05h	NONDESTRUCTIVE INPUT, NO WAIT (character devices)
 06h	INPUT STATUS (character devices)
 07h	INPUT FLUSH (character devices)
 08h	OUTPUT
 09h	OUTPUT WITH VERIFY
 0Ah	OUTPUT STATUS (character devices)
 0Bh	OUTPUT FLUSH (character devices)
 0Ch	IOCTL OUTPUT
 0Dh	(DOS 3+) DEVICE OPEN
 0Eh	(DOS 3+) DEVICE CLOSE
 0Fh	(DOS 3+) REMOVABLE MEDIA (block devices)
 10h	(DOS 3+) OUTPUT UNTIL BUSY (character devices)
 11h	(European MS-DOS 4.0) STOP OUTPUT (console screen drivers only)
 12h	(European MS-DOS 4.0) RESTART OUTPUT (console screen drivers only)
 13h	(DOS 3.2+) GENERIC IOCTL
 14h	unused
 15h	(European MS-DOS 4.0) RESET UNCERTAIN MEDIA FLAG
 16h	unused
 17h	(DOS 3.2+) GET LOGICAL DEVICE
 18h	(DOS 3.2+) SET LOGICAL DEVICE
 19h	(DOS 5+) CHECK GENERIC IOCTL SUPPORT
 80h	(CD-ROM) READ LONG
 81h	(CD-ROM) reserved
 82h	(CD-ROM) READ LONG PREFETCH
 83h	(CD-ROM) SEEK
 84h	(CD-ROM) PLAY AUDIO
 85h	(CD-ROM) STOP AUDIO
 86h	(CD-ROM) WRITE LONG
 87h	(CD-ROM) WRITE LONG VERIFY
 88h	(CD-ROM) RESUME AUDIO

Bitfields for device request status:
Bit(s)	Description	(Table 1381)
 15	error
 14-11	reserved
 10	??? set by DOS kernel on entry to some driver calls
 9	busy
 8	done (may be clear on return under European MS-DOS 4.0)
 7-0	error code if bit 15 set (see #1383)

Format of device driver request header:
Offset	Size	Description	(Table 1382)
 00h	BYTE	length of request header
 01h	BYTE	subunit within device driver
 02h	BYTE	command code (see #1380)
 03h	WORD	status (filled in by device driver) (see #1381)
---DOS---
 05h  4 BYTEs	reserved (unused in DOS 2.x and 3.x)
 09h	DWORD	(European MS-DOS 4.0 only) pointer to next request header in
			  device's request queue
		(other versions) reserved (unused in DOS 2.x and 3.x)
---STARLITE architecture---
 05h	DWORD	pointer to next request header
 09h  4 BYTEs	reserved
---command code 00h---
 0Dh	BYTE	(ret) number of units
 0Eh	DWORD	(call) pointer to DOS device helper function (see #1384)
			  (European MS-DOS 4.0 only)
		(call) pointer past end of memory available to driver (DOS 5+)
		(ret) address of first free byte following driver
 12h	DWORD	(call) pointer to commandline arguments
		(ret) pointer to BPB array (block drivers) or
			  0000h:0000h (character drivers)
 16h	BYTE	(DOS 3+) drive number for first unit of block driver (0=A)
   ---European MS-DOS 4.0---
 17h	DWORD	pointer to function to save registers on stack
   ---DOS 5+ ---
 17h	WORD	(ret) error-message flag
		0001h MS-DOS should display error msg on init failure
---command code 01h---
 0Dh	BYTE	media descriptor
 0Eh	BYTE	(ret) media status
		00h don't know
		01h media has not changed
		FFh media has been changed
 0Fh	DWORD	(return, DOS 3+) pointer to previous volume ID if OPEN/CLOSE/RM
		  bit in device header is set and disk changed
---command code 02h---
 0Dh	BYTE	media descriptor
 0Eh	DWORD	transfer address
		-> scratch sector if NON-IBM FORMAT bit in device header set
		-> first FAT sector otherwise
 12h	DWORD	pointer to BPB (set by driver) (see #0875 at INT 21/AH=53h)
---command codes 03h,0Ch--- (see also INT 21/AX=4402h,INT 21/AX=4403h)
 0Dh	BYTE	media descriptor (block devices only)
 0Eh	DWORD	transfer address
 12h	WORD	(call) number of bytes to read/write
		(ret) actual number of bytes read or written
---command codes 04h,08h,09h (except Compaq DOS 3.31, DR-DOS 6)---
 0Dh	BYTE	media descriptor (block devices only)
 0Eh	DWORD	transfer address
 12h	WORD	byte count (character devices) or sector count (block devices)
 14h	WORD	starting sector number (block devices only)
 16h	DWORD	(DOS 3+) pointer to volume ID if error 0Fh returned
 1Ah	DWORD	(DOS 4+) 32-bit starting sector number (block devices with
		  device attribute word bit 1 set only) if starting sector
		  number above is FFFFh (see INT 21/AH=52h)
---command codes 04h,08h,09h (Compaq DOS 3.31, DR-DOS 6)---
 0Dh	BYTE	media descriptor (block devices only)
 0Eh	DWORD	transfer address
 12h	WORD	byte count (character devices) or sector count (block devices)
 14h	DWORD	32-bit starting sector number (block devices only)
	Note:	to reliably determine which variant of the request block for
		  functions 04h,08h,09h has been passed to the driver, check
		  the length field as well as the word at offset 14h.  If the
		  length is 1Eh and 14h=FFFFh, use the DWORD at 1Ah as the
		  starting sector number; if the length is 18h, use the DWORD
		  at 14h; otherwise, use the WORD at 14h.
---command code 05h---
 0Dh	BYTE	byte read from device if BUSY bit clear on return
---command codes 06h,07h,0Ah,0Bh,0Dh,0Eh,0Fh---
 no further fields
---command code 10h---
 0Dh	BYTE	unused
 0Eh	DWORD	transfer address
 12h	WORD	(call) number of bytes to write
		(ret) actual number of bytes written
---command codes 11h,12h---
 0Dh	BYTE	reserved
---command code 15h---
 no further fields
---command codes 13h,19h---
 0Dh	BYTE	category code
		00h unknown
		01h COMn:
		03h CON
		05h LPTn:
		07h mouse (European MS-DOS 4.0)
		08h disk
		9Eh (STARLITE) Media Access Control driver
 0Eh	BYTE	function code
		00h (STARLITE) MAC Bind request
 0Fh	WORD	copy of DS at time of IOCTL call (apparently unused in DOS 3.3)
		SI contents (European MS-DOS 4.0)
 11h	WORD	offset of device driver header
		DI contents (European MS-DOS 4.0)
 13h	DWORD	pointer to parameter block from INT 21/AX=440Ch or AX=440Dh
---command codes 80h,82h---
 0Dh	BYTE	addressing mode
		00h HSG (default)
		01h Phillips/Sony Red Book
 0Eh	DWORD	transfer address (ignored for command 82h)
 12h	WORD	number of sectors to read
		(if 0 for command 82h, request is an advisory seek)
 14h	DWORD	starting sector number
		logical sector number in HSG mode
		frame/second/minute/unused in Red Book mode
		(HSG sector = minute * 4500 + second * 75 + frame - 150)
 18h	BYTE	data read mode
		00h cooked (2048 bytes per frame)
		01h raw (2352 bytes per frame, including EDC/ECC)
 19h	BYTE	interleave size (number of sectors stored consecutively)
 1Ah	BYTE	interleave skip factor
		(number of sectors between consecutive portions)
---command code 83h---
 0Dh	BYTE	addressing mode (see above)
 0Eh	DWORD	transfer address (ignored)
 12h	WORD	number of sectors to read (ignored)
 14h	DWORD	starting sector number (see also above)
---command code 84h---
 0Dh	BYTE	addressing mode (see above)
 0Eh	DWORD	starting sector number (see also above)
 12h	DWORD	number of sectors to play
---command codes 85h,88h---
 no further fields
---command codes 86h,87h---
 0Dh	BYTE	addressing mode (see above)
 0Eh	DWORD	transfer address (ignored in write mode 0)
 12h	WORD	number of sectors to write
 14h	DWORD	starting sector number (see also above)
 18h	BYTE	write mode
		00h mode 0 (write all zeros)
		01h mode 1 (default) (2048 bytes per sector)
		02h mode 2 form 1 (2048 bytes per sector)
		03h mode 2 form 2 (2336 bytes per sector)
 19h	BYTE	interleave size (number of sectors stored consecutively)
 1Ah	BYTE	interleave skip factor
		(number of sectors between consecutive portions)

(Table 1383)
Values for device driver error code:
 00h	write-protect violation
 01h	unknown unit
 02h	drive not ready
 03h	unknown command
 04h	CRC error
 05h	bad drive request structure length
 06h	seek error
 07h	unknown media
 08h	sector not found
 09h	printer out of paper
 0Ah	write fault
 0Bh	read fault
 0Ch	general failure
 0Dh	reserved
 0Eh	(CD-ROM) media unavailable
 0Fh	invalid disk change

(Table 1384)
Call European MS-DOS 4.0 device helper function with:
	DL = function
	    00h "SchedClock" called on each timer tick
		AL = tick interval in milliseconds
	    01h "DevDone" device I/O complete
		ES:BX -> request header
		Note:	must update status word first; may be called from
			  an interrupt handler
	    02h "PullRequest" pull next request from queue
		DS:SI -> DWORD pointer to start of device's request queue
		Return: ZF clear if pending request
			    ES:BX -> request header
			ZF set if no more requests
	    03h "PullParticular" remove specific request from queue
		DS:SI -> DWORD pointer to start of device's request queue
		ES:BX -> request header
		Return: ZF set if request header not found
	    04h "PushRequest" push the request onto the queue
		DS:SI -> DWORD pointer to start of device's request queue
		ES:BX -> request header
		interrupts disabled
	    05h "ConsInputFilter" keyboard input check
		AX = character (high byte 00h if PC ASCII character)
		Return: ZF set if character should be discarded
			ZF clear if character should be handled normally
		Note:	called by keyboard interrupt handler so DOS can scan
			  for special input characters
	    06h "SortRequest" push request in sorted order by starting sector
		DS:SI -> DWORD pointer to start of device's request queue
		ES:BX -> request header
		interrupts disabled
	    07h "SigEvent" send signal on keyboard event
		AH = event identifier
		Return: AL,FLAGS destroyed
	    09h "ProcBlock" block on event
		AX:BX = event identifier (typically a pointer)
		CX = timeout in ms or 0000h for never
		DH = interruptable flag (nonzero if pause may be interrupted)
		interrupts disabled
		Return: after corresponding ProcRun call
			CF clear if event wakeup, set if unusual wakeup
			ZF set if timeout wakeup, clear if interrupted
			AL = wakeup code, nonzero if unusual wakeup
			interrupts enabled
			BX,CX,DX destroyed
		Note:	block process and schedules another to run
	    0Ah "ProcRun" unblock process
		AX:BX = event identifier (typically a pointer)
		Return: AX = number of processes awakened
			ZF set if no processes awakened
			BX,CX,DX destroyed
	    0Bh "QueueInit" initialize/clear character queue
		DS:BX -> character queue structure (see #1385)
		Note:	the queue size field must be set before calling
	    0Dh "QueueWrite" put a character in the queue
		DS:BX -> character queue (see #1385)
		AL = character to append to end of queue
		Return: ZF set if queue is full
			ZF clear if character stored
	    0Eh "QueueRead" get a character from the queue
		DS:BX -> character queue (see #1385)
		Return: ZF set if queue is empty
			ZF clear if characters in queue
			    AL = first character in queue
	    10h "GetDOSVar" return pointer to DOS variable
		AL = index of variable
		    03h current process ID
		BX = index into variable if AL specifies an array
		CX = expected length of variable
		Return: CF clear if successful
			    DX:AX -> variable
			CF set on error
			    AX,DX destroyed
			BX,CX destroyed
		Note:	the variables may not be modified
	    14h "Yield" yield CPU if higher-priority task ready to run
		Return: FLAGS destroyed
	    1Bh "CritEnter" begin system critical section
		DS:BX -> semaphore (6 BYTEs, initialized to zero)
		Return: AX,BX,CX,DX destroyed
	    1Ch "CritLeave" end system critical section
		DS:BX -> semaphore (6 BYTEs, initialized to zero)
		Return: AX,BX,CX,DX destroyed
		Note:	must be called in the context of the process which
			  called CritEnter on the semaphore
Note:	the DWORD pointing at the request queue must be allocated by the driver
	  and initialized to 0000h:0000h.  It always points at the next request
	  to be executed

Format of European MS-DOS 4.0 character queue:
Offset	Size	Description	(Table 1385)
 00h	WORD	size of queue in bytes
 02h	WORD	index of next character out
 04h	WORD	count of characters in the queue
 06h  N BYTEs	queue buffer
--------D-2F0803-----------------------------
INT 2F U - DOS 4+ DRIVER.SYS support - GET DRIVE DATA TABLE LIST
	AX = 0803h
Return: DS:DI -> first drive data table in list (see #1386,#1387,#1388)
Note:	not available under DR-DOS 5.0
SeeAlso: AX=0801h

Format of DOS 3.30 drive data table:
Offset	Size	Description	(Table 1386)
 00h	DWORD	pointer to next table (offset FFFFh if last table)
 04h	BYTE	physical unit number (for INT 13)
 05h	BYTE	logical drive number (0=A:)
 06h 19 BYTEs	BIOS Parameter Block (see also INT 21/AH=53h)
		Offset	Size	Description
		 00h	WORD	bytes per sector
		 02h	BYTE	sectors per cluster, FFh if unknown
		 03h	WORD	number of reserved sectors
		 05h	BYTE	number of FATs
		 06h	WORD	number of root dir entries
		 08h	WORD	total sectors
		 0Ah	BYTE	media descriptor, 00h if unknown
		 0Bh	WORD	sectors per FAT
		 0Dh	WORD	sectors per track
		 0Fh	WORD	number of heads
		 11h	WORD	number of hidden sectors
 19h	BYTE	flags
		bit 6: 16-bit FAT instead of 12-bit FAT
 1Ah	WORD	number of DEVICE OPEN calls without corresponding DEVICE CLOSE
 1Ch 11 BYTEs	volume label or "NO NAME    " if none (always "NO NAME" for
		  fixed media)
 27h	BYTE	terminating null for volume label???
 28h	BYTE	device type (see #0781 at INT 21/AX=440Dh)
 29h	WORD	bit flags describing drive (see #1389)
 2Bh	WORD	number of cylinders
 2Dh 19 BYTEs	BIOS Parameter Block for highest capacity supported
 40h  3 BYTEs	???
 43h  9 BYTEs	filesystem type???, default = "NO NAME	"
		(apparently only MS-DOS 3.30 fixed media, nulls for removable
		  media and PC-DOS 3.30)
 4Ch	BYTE	least-significant byte of last-accessed cylinder number
---removable media---
 4Dh	DWORD	time of last access in clock ticks (FFFFFFFFh if never)
---fixed media---
 4Dh	WORD	partition (FFFFh = primary, 0001h = extended)
 4Fh	WORD	absolute cylinder number of partition's start on physical
		  drive (always FFFFh if primary partition)
SeeAlso: #1387,#1388

Format of COMPAQ DOS 3.31 drive data table:
Offset	Size	Description	(Table 1387)
 00h	DWORD	pointer to next table (offset FFFFh if last table)
 04h	BYTE	physical unit number (for INT 13)
 05h	BYTE	logical drive number (0=A:)
 06h 25 BYTEs	BIOS Parameter Block (see DOS 4.0-6.0 drive data table below)
 1Fh  6 BYTEs	reserved fields from BPB above???
 25h	BYTE	flags
		bit 6: 16-bit FAT instead of 12-bit FAT
		bit 5: large volume???
 26h	WORD	device-open count???
 28h 11 BYTEs	volume label or "NO NAME    " if none (always "NO NAME" for
		  fixed media)
 33h	BYTE	terminating null for volume label
 34h	BYTE	device type (see #0781 at INT 21/AX=440Dh)
 35h	WORD	bit flags describing drive (see #1389)
 37h	WORD	number of cylinders
 39h 25 BYTEs	BIOS parameter block for highest capacity drive supports
 52h  6 BYTEs	??? apparently always zeros
 58h	BYTE	least-significant byte of last-accessed cylinder number
---removable media---
 59h	DWORD	time of last access in clock ticks (FFFFFFFFh if never)
---fixed media---
 59h	WORD	partition (FFFFh = primary, 0001h = extended)
 5Bh	WORD	absolute cylinder number of partition's start on physical
		  drive (always FFFFh if primary partition)
SeeAlso: #1386,#1388

Format of DOS 4.0-6.0 drive data table:
Offset	Size	Description	(Table 1388)
 00h	DWORD	pointer to next table (offset FFFFh if last table)
 04h	BYTE	physical unit number (for INT 13)
 05h	BYTE	logical drive number (0=A:)
 06h 25 BYTEs	BIOS Parameter Block (see also INT 21/AH=53h)
		Offset	Size	Description
		 00h	WORD	bytes per sector
		 02h	BYTE	sectors per cluster, FFh if unknown
		 03h	WORD	number of reserved sectors
		 05h	BYTE	number of FATs
		 06h	WORD	number of root dir entries
		 08h	WORD	total sectors (see offset 15h if zero)
		 0Ah	BYTE	media descriptor, 00h if unknown
		 0Bh	WORD	sectors per FAT
		 0Dh	WORD	sectors per track
		 0Fh	WORD	number of heads
		 11h	DWORD	number of hidden sectors
		 15h	DWORD	total sectors if WORD at 08h is zero
 1Fh	BYTE	flags
		bit 6: 16-bit FAT instead of 12-bit
		bit 7: unsupportable disk (all accesses will return Not Ready)
 20h	WORD	device-open count
 22h	BYTE	device type (see #0781 at INT 21/AX=440Dh)
 23h	WORD	bit flags describing drive (see #1389)
 25h	WORD	number of cylinders (for partition only, if hard disk)
 27h 25 BYTEs	BIOS Parameter Block for default (highest) capacity supported
 40h  6 BYTEs	reserved (part of BPB above)
 46h	BYTE	last track accessed
---removable media---
 47h	DWORD	time of last access in clock ticks (FFFFFFFFh if never)
---fixed media---
 47h	WORD	partition (FFFFh = primary, 0001h = extended)
		always 0001h for DOS 5+
 49h	WORD	absolute cylinder number of partition's start on physical drive
		(FFFFh if primary partition in DOS 4.x)
------
 4Bh 11 BYTEs	volume label or "NO NAME    " if none (apparently taken from
		  extended boot record rather than root directory)
 56h	BYTE	terminating null for volume label
 57h	DWORD	serial number
 5Bh  8 BYTEs	filesystem type ("FAT12	  " or "FAT16	")
 63h	BYTE	terminating null for filesystem type
SeeAlso: #1386,#1387

Bitfields for flags describing drive:
Bit(s)	Description	(Table 1389)
 0	fixed media
 1	door lock ("changeline") supported
 2	current BPB locked
 3	all sectors in a track are the same size
 4	physical drive has multiple logical units
 5	current logical drive for shared physical drive
 6	disk change detected
 7	device parameters were changed (set DASD before formatting)
	(see #0780 at INT 21/AX=440Dh)
 8	disk reformatted (BPB of current media was changed)
 9	access flag (fixed media only, disables reads and writes)
	(see #0786 at INT 21/AX=440Dh)
--------f-2F1000-----------------------------
INT 2F - SHARE - INSTALLATION CHECK
	AX = 1000h
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
BUGS:	values of AL other than 00h put DOS 3.x SHARE into an infinite loop
	  (08E9: OR  AL,AL
	   08EB: JNZ 08EB) <- the="" buggy="" instruction="" (dos="" 3.3)="" values="" of="" al="" other="" than="" described="" here="" put="" pc-dos="" 4.00="" into="" the="" same="" loop="" (the="" buggy="" instructions="" are="" the="" same)="" notes:="" supported="" by="" os/2="" v1.3+="" compatibility="" box,="" which="" always="" returns="" al="FFh" if="" dos="" 4.01="" share="" was="" automatically="" loaded,="" file="" sharing="" is="" in="" an="" inactive="" state="" (due="" to="" the="" undocumented="" c="" flag="" used="" by="" the="" autoload="" code)="" until="" this="" call="" is="" made="" dos="" 5+="" chains="" to="" the="" previous="" handler="" if="" al=""><> 00h on entry
	Windows Enhanced mode hooks this call and reports that SHARE is
	  installed even when it is not
SeeAlso: AX=1080h,INT 21/AH=52h
--------d-2F1001-----------------------------
INT 2F U - DR-DOS 6.0 SHARE internal - SET ???
	AX = 1001h
	DX:BX -> ???function
Notes:	this function is also supported by SuperStor, a disk-compression
	  program by Addstor which is bundled with DR-DOS 6.0, and the
	  Novell DOS 7 DELWATCH.EXE
	the default handler for the pointer set by this call under DELWATCH
	  simply returns with CF set
SeeAlso: AX=1000h,AX=F800h
--------f-2F1040-----------------------------
INT 2F U - DOS 4 only SHARE internal - ???
	AX = 1040h
	???
Return: AL = FFh???
SeeAlso: AX=1000h
--------f-2F1080-----------------------------
INT 2F U - DOS 4 only SHARE internal - TURN ON FILE SHARING CHECKS
	AX = 1080h
Return: AL = status
	    F0h successful
	    FFh checking was already on
Note:	DOS 4.x SHARE has dual functions: FCB support for large (>32M) media
	  and file sharing checks.  The undocumented commandline flag /NC can
	  be used to disable the sharing code.
SeeAlso: AX=1000h,AX=1081h
--------f-2F1081-----------------------------
INT 2F U - DOS 4 only SHARE internal - TURN OFF FILE SHARING CHECKS
	AX = 1081h
Return: AL = status
	    F0h successful
	    FFh checking was already off
Note:	(see AX=1080h)
SeeAlso: AX=1000h,AX=1080h
----------2F10FE-----------------------------
INT 2F U - Novell DOS 7 DELWATCH.EXE - INSTALLATION CHECK
	AX = 10FEh
Return: AX = 20FFh if installed and active
	    DX:BX -> private entry point (see #1390)

(Table 1390)
Call DELWATCH private entry point with:
	AH = function
	    00h NOP???
		Return: AX = 0000h
			CX = 0004h (unsupported function)
	    01h disable DELWATCH on drive
		AL = drive number (00h = A:)
		Return: AX = status (0000h if failed, FFFFh if successful)
	    02h ???
		AL = drive number (00h = A:)
		???
		Return: ???
	    03h	???
		AL = drive number (00h = A:)
		CX = ??? (0000h/0001h)
		???
		Return: ???
	    04h ???
		AL = drive number (00h = A:)
		???
		Return: ???
	    05h ???
		AL = drive number (00h = A:)
		???
		Return: ???
	    06h enable DELWATCH on drive
		AL = drive number with bit 7 set (80h = A:, etc.)
		BX = maximum files of same name in one directory to save
		CX = maximum files to save on this disk
		???
		Return: AX = status
			    0000h failed
			    FFFFh successful
			CX = error code on failure
			    (0004h if AL < 80h="" on="" entry)="" 07h="" 08h="" set="" file="" extensions="" list="" al="sense" (00h="" exclude="" named="" extensions,="" 01h="" only="" named="" ext.)="" ds:bx="" -=""> 31-byte ASCIZ extension list (three blank-padded bytes
			  per extension)
		Return: AX = FFFFh (successful)
	    09h	???
		AL = drive number (00h = A:)
		???
		Return: ???
	    0Ah ???
		AL = drive number (00h = A:)
		???
		Return: ???
	    0Bh reset ???
		Return: AX = FFFFh (successful)
		see also function 0Dh
	    0Ch check if drive enabled
		AL = drive number with bit 7 set (80h = A:, etc.)
		Return: AX = state
			    0000h disabled or error (check CX)
			    0001h drive enabled
			CX = error code (0004h invalid drive number)
	    0Dh set ???
		BX = ???
		Return: AX = FFFFh (successful)
		see also function 0Bh
	    0Eh ???
		AL = drive number (00h = A:)
		???
		Return: ???
Return: AX = 0000h, CX = 0001h if DELWATCH busy
	registers unchanged if AH >= 0Fh on entry
--------O-2F10FF-----------------------------
INT 2F U - Multiplex - DR-DOS 5.0 - ???
	AX = 10FFh
	ES:BX -> ???
Note:	sets pointer in kernel
--------N-2F1100-----------------------------
INT 2F C - NETWORK REDIRECTOR - INSTALLATION CHECK
	AX = 1100h
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
		AH = product identifier (ad hoc by various manufacturers)
		    00h if PC Tools v8 DRIVEMAP
		    42h ('B') for Beame&Whiteside BWNFS v3.0a
		    6Eh ('n') for NetWare Lite v1.1 CLIENT
Notes:	this function is called by the DOS 3.1+ kernel
	in DOS 4.x only, the 11xx calls are all in IFSFUNC.EXE, not in the
	  PC LAN Program redirector; DOS 5+ moves the calls back into the
	  redirector
	the PC Network 1.00 redirector (renamed to PC LAN Program in 1.1-1.3)
	  only supports AL=00h-27h
--------d-2F1100SFDADA-----------------------
INT 2F - MSCDEX (MS CD-ROM Extensions) - INSTALLATION CHECK
	AX = 1100h subfn DADAh
	STACK: WORD DADAh
Return: AL = status
	    00h not installed, OK to install
		STACK unchanged
	    01h not installed, not OK to install
		STACK unchanged
	    FFh installed
		STACK: WORD	ADADh if MSCDEX installed
				DADBh if Lotus CD/Networker installed
Note:	although MSCDEX sets the stack word to ADADh on return, any value other
	  than DADAh is considered to mean that MSCDEX is already installed;
	  Lotus CD/Networker v4+ uses this feature to fool MSCDEX into
	  thinking it is already installed when it is in fact CD/Networker
	  that is installed
Index:	installation check;Lotus CD/Networker
Index:	Lotus CD/Networker;installation check
--------N-2F1101-----------------------------
INT 2F CU - NETWORK REDIRECTOR - REMOVE REMOTE DIRECTORY
	AX = 1101h
	SS = DOS DS
	SDA first filename pointer -> fully-qualified directory name
	SDA CDS pointer -> current directory structure for drive with dir
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1103h,AX=1105h,INT 21/AH=3Ah,INT 21/AH=60h
--------N-2F1102-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - REMOVE REMOTE DIRECTORY
	AX = 1102h
	SS = DOS DS
	SDA first filename pointer -> fully-qualified directory name
	SDA CDS pointer -> current directory structure for drive with dir
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	appears to be identical to AX=1101h; MS internal documentation calls
	  this function "SEQ_RMDIR"
SeeAlso: AX=1101h
--------N-2F1103-----------------------------
INT 2F CU - NETWORK REDIRECTOR - MAKE REMOTE DIRECTORY
	AX = 1103h
	SS = DOS DS
	SDA first filename pointer -> fully-qualified directory name
	SDA CDS pointer -> current directory structure for drive with dir
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1101h,AX=1105h,INT 21/AH=39h,INT 21/AH=60h
--------N-2F1104-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - MAKE REMOTE DIRECTORY
	AX = 1104h
	SS = DOS DS
	SDA first filename pointer -> fully-qualified directory name
	SDA CDS pointer -> current directory structure for drive with dir
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	appears to be identical to AX=1103h
SeeAlso: AX=1103h
--------N-2F1105-----------------------------
INT 2F CU - NETWORK REDIRECTOR - CHDIR
	AX = 1105h
	SS = DOS DS
	SDA first filename pointer -> fully-qualified directory name
	SDA CDS pointer -> current directory structure for drive with dir
Return: CF set on error
		 AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    CDS updated with new path
Notes:	this function is called by the DOS 3.1+ kernel
	directory string in CDS should not have a terminating backslash unless
	  the current directory is the root
SeeAlso: AX=1101h,AX=1103h,INT 21/AH=3Bh,INT 21/AH=60h
--------N-2F1106-----------------------------
INT 2F CU - NETWORK REDIRECTOR - CLOSE REMOTE FILE
	AX = 1106h
	BX = device info word from SFT
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive containing file
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    SFT updated (redirector must decrement open count, which may be
		  done with INT 2F/AX=1208h)
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1116h,AX=1201h,AX=1208h,AX=1227h,INT 21/AH=3Eh
--------N-2F1107-----------------------------
INT 2F CU - NETWORK REDIRECTOR - COMMIT REMOTE FILE
	AX = 1107h
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive containing file
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    all buffers for file flushed
	    directory entry updated
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: INT 21/AH=68h,INT 21/AX=5D01h
--------N-2F1108-----------------------------
INT 2F CU - NETWORK REDIRECTOR - READ FROM REMOTE FILE
	AX = 1108h
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive containing file
	CX = number of bytes
	SS = DOS DS
	SDA DTA field -> user buffer
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    CX = number of bytes read (0000h = end of file)
	    SFT updated
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1109h,AX=1229h,INT 21/AH=3Fh,INT 21/AX=5D06h
--------N-2F1109-----------------------------
INT 2F CU - NETWORK REDIRECTOR - WRITE TO REMOTE FILE
	AX = 1109h
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive containing file
	CX = number of bytes
	SS = DOS DS
	SDA DTA field -> user buffer
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    CX = number of bytes written
	    SFT updated
Notes:	this function is called by the DOS 3.1+ kernel
	PrintCache v3.1 PCACHE.EXE intercepts this function for SFTs where
	  the Device Driver Header field points at PCACHE, but does not
	  intercept any other network redirector functions
SeeAlso: AX=1107h,AX=1108h,INT 21/AH=40h,INT 21/AX=5D06h
--------N-2F110A-----------------------------
INT 2F CU - NETWORK REDIRECTOR (DOS 3.x only) - LOCK REGION OF FILE
	AX = 110Ah
	BX = file handle
	CX:DX = starting offset
	SI = high word of size
	STACK: WORD low word of size
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive containing file
	SS = DOS DS
Return: CF set on error
	   AL = DOS error code (see #0885 at INT 21/AH=59h)
	STACK unchanged
Notes:	this function is called by the DOS 3.10-3.31 kernel
	the redirector is expected to resolve lock conflicts
SeeAlso: AX=110Bh,INT 21/AH=5Ch
--------N-2F110A-----------------------------
INT 2F CU - NETWORK REDIRECTOR (DOS 4+) - LOCK/UNLOCK REGION OF FILE
	AX = 110Ah
	BL = function
	    00h lock
	    01h unlock
	CX = number of lock/unlock parameters (0001h for DOS 4.0-6.1)
	DS:DX -> parameter block (see #1391)
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive containing file
	SS = DOS DS
Return: CF set on error
	   AL = DOS error code (see #0885 at INT 21/AH=59h)
Notes:	this function is called by the DOS 4.0+ kernel
	the redirector is expected to resolve lock conflicts
SeeAlso: AX=110Bh,INT 21/AH=5Ch

Format of parameter block entry [array, but currently limited to single entry]:
Offset	Size	Description	(Table 1391)
 00h	DWORD	start offset
 04h	DWORD	size of region
--------N-2F110B-----------------------------
INT 2F CU - NETWORK REDIRECTOR (DOS 3.x only) - UNLOCK REGION OF FILE
	AX = 110Bh
	BX = file handle
	CX:DX = starting offset
	SI = high word of size
	STACK: WORD low word of size
	ES:DI -> SFT for file
	    SFT DPB field -> DPB of drive containing file
Return: CF set on error
	   AL = DOS error code (see #0885 at INT 21/AH=59h)
	STACK unchanged
Note:	this function is called by the DOS 3.1-3.31 kernel; DOS 4.0+ calls AX=110Ah instead
SeeAlso: AX=110Ah,INT 21/AH=5Ch
--------N-2F110C-----------------------------
INT 2F CU - NETWORK REDIRECTOR - GET DISK INFORMATION
	AX = 110Ch
	ES:DI -> current directory structure for desired drive
Return: CF clear if data valid
	    AL = sectors per cluster
	    AH = media ID byte
	    BX = total clusters
	    CX = bytes per sector
	    DX = number of available clusters
	CF set if data invalid
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: INT 21/AH=36h
--------N-2F110D-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - SET REMOTE FILE'S ATTRIBUTES
	AX = 110Dh
	SDA first filename pointer -> name of file
	???
Return: ???
Note:	similar to AX=110Eh
SeeAlso: AX=110Eh
--------N-2F110E-----------------------------
INT 2F CU - NETWORK REDIRECTOR - SET REMOTE FILE'S ATTRIBUTES
	AX = 110Eh
	SS = DOS DS
	SDA first filename pointer -> fully-qualified name of file
	SDA CDS pointer -> current directory structure for drive with file
	STACK: WORD new file attributes
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	STACK unchanged
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=110Dh,AX=110Fh,INT 21/AX=4301h,INT 21/AH=60h
--------N-2F110F-----------------------------
INT 2F CU - NETWORK REDIRECTOR - GET REMOTE FILE'S ATTRIBUTES AND SIZE
	AX = 110Fh
	SS = DOS DS
	SDA first filename pointer -> fully-qualified name of file
	SDA CDS pointer -> current directory structure for drive with file
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    AX = file attributes
	    BX:DI = file size
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=110Eh,INT 21/AX=4300h,INT 21/AH=60h
--------N-2F1110-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - GET REMOTE FILE'S ATTRIBUTES AND SIZE
	AX = 1110h
	SDA first filename pointer -> name of file
	???
Return: ???
Note:	appears to be similar to AX=110Fh
SeeAlso: AX=110Eh
--------N-2F1111-----------------------------
INT 2F CU - NETWORK REDIRECTOR - RENAME REMOTE FILE
	AX = 1111h
	SS = DS = DOS DS
	SDA first filename pointer = offset of fully-qualified old name
	SDA second filename pointer = offset of fully-qualified new name
	SDA CDS pointer -> current directory structure for drive with file
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1112h,INT 21/AH=56h,INT 21/AH=60h
--------N-2F1112-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - RENAME REMOTE FILE
	AX = 1112h
	SS = DS = DOS DS
	SDA first filename pointer -> name of file
	???
Return: ???
Note:	similar to AX=1111h
SeeAlso: AX=1111h
--------N-2F1113-----------------------------
INT 2F CU - NETWORK REDIRECTOR - DELETE REMOTE FILE
	AX = 1113h
	SS = DS = DOS DS
	SDA first filename pointer -> fully-qualified filename in DOS DS
	SDA CDS pointer -> current directory structure for drive with file
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Notes:	this function is called by the DOS 3.1+ kernel
	the filespec may contain wildcards
SeeAlso: AX=1114h,INT 21/AH=41h,INT 21/AH=60h
--------N-2F1114-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - DELETE REMOTE FILE
	AX = 1114h
	SDA first filename pointer -> name of file
	???
Return: ???
Note:	similar to AX=1113h
SeeAlso: AX=1113h
--------N-2F1115-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - OPEN REMOTE FILE
	AX = 1115h
	SS = DOS DS
	ES:DI -> SFT ???
	???
Return: ???
Note:	similar to AX=1116h
SeeAlso: AX=1116h,AX=112Eh
--------N-2F1116-----------------------------
INT 2F CU - NETWORK REDIRECTOR - OPEN EXISTING REMOTE FILE
	AX = 1116h
	ES:DI -> uninitialized SFT
	SS = DOS DS
	SDA first filename pointer -> fully-qualified name of file to open
	STACK: WORD file access and sharing modes (see #0627 at INT 21/AH=3Dh)
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    SFT filled (except handle count, which DOS manages itself)
	STACK unchanged
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1106h,AX=1115h,AX=1117h,AX=1118h,AX=112Eh,INT 21/AH=3Dh
SeeAlso: INT 21/AH=60h
--------N-2F1117-----------------------------
INT 2F CU - NETWORK REDIRECTOR - CREATE/TRUNCATE REMOTE FILE
	AX = 1117h
	ES:DI -> uninitialized SFT
	SS = DOS DS
	SDA first filename pointer -> fully-qualified name of file to open
	SDA CDS pointer -> current directory structure for drive with file
	STACK: WORD file creation mode
			low byte = file attributes (see #0626 at INT 21/AH=3Ch)
			high byte = 00h normal create, 01h create new file
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    SFT filled (except handle count, which DOS manages itself)
	STACK unchanged
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1106h,AX=1116h,AX=1118h,AX=112Eh,INT 21/AH=3Ch,INT 21/AH=60h
--------N-2F1118-----------------------------
INT 2F CU - NETWORK REDIRECTOR - CREATE/TRUNCATE FILE WITHOUT CDS
	AX = 1118h
	ES:DI -> uninitialized SFT
	SS = DOS DS
	SDA first filename pointer -> fully-qualified name of file
	STACK: WORD file creation mode
			low byte = file attributes
			high byte = 00h normal create, 01h create new file
Return: ???
	STACK unchanged
Note:	this function is called by the DOS 3.1+ kernel when creating a file
	  on a drive for which the SDA CDS pointer has offset FFFFh
SeeAlso: AX=1106h,AX=1116h,AX=1117h,AX=112Eh,INT 21/AH=60h
--------N-2F1119-----------------------------
INT 2F CU - NETWORK REDIRECTOR - FIND FIRST FILE WITHOUT CDS
	AX = 1119h
	SS = DS = DOS DS
	[DTA] = uninitialized 21-byte findfirst search data
	      (see #0839 at INT 21/AH=4Eh)
	SDA first filename pointer -> fully-qualified search template
	SDA search attribute = attribute mask for search
Return: CF set on error
		 AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    [DTA] = updated findfirst search data
		    (bit 7 of first byte must be set)
	    [DTA+15h] = standard directory entry for file
Notes:	this function is called by the DOS 3.1+ kernel
	DOS 4.x IFSFUNC returns CF set, AX=0003h
SeeAlso: AX=111Ah,AX=111Bh
--------N-2F111A-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - FIND NEXT FILE WITHOUT CDS
	AX = 111Ah
	???
Return: CF set
	    AX = error code (03h for DOS 4.01 IFSFUNC)
Note:	use AX=111Ch for DOS 5+
SeeAlso: AX=1119h,AX=111Ch
--------N-2F111B-----------------------------
INT 2F CU - NETWORK REDIRECTOR - FINDFIRST
	AX = 111Bh
	SS = DS = DOS DS
	[DTA] = uninitialized 21-byte findfirst search data
	      (see #0839 at INT 21/AH=4Eh)
	SDA first filename pointer -> fully-qualified search template
	SDA CDS pointer -> current directory structure for drive with file
	SDA search attribute = attribute mask for search
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    [DTA] = updated findfirst search data
		    (bit 7 of first byte must be set)
	    [DTA+15h] = standard directory entry for file
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1119h,AX=111Ch,INT 21/AH=4Eh,INT 21/AH=60h
--------N-2F111C-----------------------------
INT 2F CU - NETWORK REDIRECTOR - FINDNEXT
	AX = 111Ch
	SS = DS = DOS DS
	ES:DI -> CDS
	[DTA] = 21-byte findfirst search data
	      (see #0839 at INT 21/AH=4Eh)
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    [DTA] = updated findfirst search data
		    (bit 7 of first byte must be set)
	    [DTA+15h] = standard directory entry for file
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: AX=1119h,AX=111Bh,INT 21/AH=4Fh
--------N-2F111D-----------------------------
INT 2F CU - NETWORK REDIRECTOR - CLOSE ALL REMOTE FILES FOR PROCESS (ABORT)
	AX = 111Dh
	SS = DOS DS
	SDA PSP segment field = PSP of terminating process
Return: nothing
Notes:	used when a process is aborted; the process being terminated is
	  indicated by the "sharing PSP" field in the SDA (offset 1Ah/1Ch)
	this function is called by the DOS 3.1+ kernel
	closes all FCBs opened by process
SeeAlso: INT 21/AX=5D04h
--------N-2F111E-----------------------------
INT 2F CU - NETWORK REDIRECTOR - DO REDIRECTION
	AX = 111Eh
	SS = DOS DS
	STACK: WORD function to execute
		5F00h  get redirection mode
			BL = type (03h printer, 04h disk)
			Return: BH = state (00h off, 01h on)
		5F01h  set redirection mode
			BL = type (03h printer, 04h disk)
			BH = state (00h off, 01h on)
		5F02h  get redirection list entry
			BX = redirection list index
			DS:SI -> 16-byte local device name buffer
			ES:DI -> 128-byte network name buffer
			Return: must set user's BX to device type and CX to
				stored parameter value, using AX=1218h to get
				stack frame address
		5F03h  redirect device
			BL = device type (see INT 21/AX=5F03h)
			CX = stored parameter value
			DS:SI -> ASCIZ source device name
			ES:DI -> destination ASCIZ network path + ASCIZ passwd
		5F04h  cancel redirection
			DS:SI -> ASCIZ device name or network path
		5F05h  get redirection list extended entry
			BX = redirection list index
			DS:SI -> buffer for ASCIZ source device name
			ES:DI -> buffer for destination ASCIZ network path
			Return: BH = status flag
				BL = type (03h printer, 04h disk)
				CX = stored parameter value
				BP = NETBIOS local session number
		5F06h  similar to 5F05h???
Return: CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
	STACK unchanged
Notes:	this function is called by the DOS 3.1+ kernel on INT 21/AH=5Fh
	  (including LAN Manager calls)
	the PC Network 1.00 redirector does not support function 5F06h
SeeAlso: INT 21/AX=5F00h,INT 21/AX=5F01h,INT 21/AX=5F02h,INT 21/AX=5F03h
SeeAlso: INT 21/AX=5F04h,INT 21/AX=5F05h,INT 21/AX=5F06h
--------N-2F111F-----------------------------
INT 2F CU - NETWORK REDIRECTOR - PRINTER SETUP
	AX = 111Fh
	STACK: WORD function
		5E02h  set printer setup
		5E03h  get printer setup
		5E04h  set printer mode
		5E05h  get printer mode
Return: CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
	STACK unchanged
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: INT 21/AX=5E02h,INT 21/AX=5E03h,INT 21/AX=5E04h,INT 21/AX=5E05h
--------N-2F1120-----------------------------
INT 2F CU - NETWORK REDIRECTOR - FLUSH ALL DISK BUFFERS
	AX = 1120h
	DS = DOS DS
	???
Return: CF clear (successful)
Notes:	this function is called by the DOS 3.1+ kernel
	uses CDS array pointer and LASTDRIVE= entries in DOS list of lists
SeeAlso: INT 21/AH=0Dh,INT 21/AX=5D01h
--------N-2F1121-----------------------------
INT 2F CU - NETWORK REDIRECTOR - SEEK FROM END OF REMOTE FILE
	AX = 1121h
	CX:DX = offset (in bytes) from end
	ES:DI -> SFT
	    SFT DPB field -> DPB of drive with file
	SS = DOS DS
Return: CF set on error
	    AL = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    DX:AX = new file position
Note:	this function is called by the DOS 3.1+ kernel, but only when seeking
	  from the end of a file opened with sharing modes set in such a
	  manner that another process is able to change the size of the file
	  while it is already open
SeeAlso: AX=1228h,INT 21/AH=42h
--------N-2F1122-----------------------------
INT 2F CU - NETWORK REDIRECTOR - PROCESS TERMINATION HOOK
	AX = 1122h
	SS = DOS DS
	DS = PSP of process about to terminate
Return: ???
Notes:	this function is called by the DOS 3.1+ kernel
	after calling this function, the kernel calls INT 2F/AX=111Dh
SeeAlso: AX=111Dh,INT 21/AH=4Ch,INT 60/DI=0601h
--------N-2F1123-----------------------------
INT 2F CU - NETWORK REDIRECTOR - QUALIFY REMOTE FILENAME
	AX = 1123h
	DS:SI -> ASCIZ filename to canonicalize
	ES:DI -> 128-byte buffer for qualified name
Return: CF set if not resolved
Notes:	called by MS-DOS 3.1+ kernel, but not called by DR-DOS 5.0 unless the
	  filename matches the name of a character device
	called first when DOS attempts to resolve a filename (unless inside an
	  AX=5D00h server call); if this fails, DOS resolves the name locally
SeeAlso: AX=1221h,INT 21/AH=60h
--------N-2F1124-----------------------------
INT 2F CU - NETWORK REDIRECTOR - TURN OFF REMOTE PRINTER
	AX = 1124h
	ES:DI -> SFT
	SS = DOS DS
	???
Return: CX = ???
Note:	this function is called by the DOS 3.1+ kernel if AX=1126h returns CF set
SeeAlso: AX=1126h
--------N-2F1125-----------------------------
INT 2F CU - NETWORK REDIRECTOR - REDIRECTED PRINTER MODE
	AX = 1125h
	STACK: WORD subfunction
		5D07h get print stream state
			Return: DL = current state
		5D08h set print stream state
			DL = new state
		5D09h finish print job
Return: CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
	STACK unchanged
Note:	this function is called by the DOS 3.1+ kernel
SeeAlso: INT 21/AX=5D07h,INT 21/AX=5D08h,INT 21/AX=5D09h
--------N-2F1126-----------------------------
INT 2F CU - NETWORK REDIRECTOR - REMOTE PRINTER ECHO ON/OFF
	AX = 1126h
	ES:DI -> SFT for file handle 4???
	SS = DOS DS???
	???
Return: CF set on error
Notes:	this function is called by the DOS 3.1+ kernel
	called when print echoing (^P, ^PrtSc) changes state and STDPRN has
	  bit 11 of the device information word in the SFT set
SeeAlso: AX=1124h
--------N-2F1127-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - UNUSED
	AX = 1127h
Return: CF set
	    AX = 0001h (invalid function) (see #0885 at INT 21/AH=59h)
--------N-2F1128-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - UNUSED
	AX = 1128h
Return: CF set
	    AX = 0001h (invalid function) (see #0885 at INT 21/AH=59h)
--------N-2F1129-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - UNUSED
	AX = 1129h
Return: CF set
		 AX = 0001h (invalid function) (see #0885 at INT 21/AH=59h)
--------N-2F112A-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - CLOSE ALL FILES FOR PROCESS
	AX = 112Ah
	DS = DOS DS
	???
Return: ???
Note:	does something to each IFS driver
--------N-2F112B-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - GENERIC IOCTL
	AX = 112Bh
	SS = DOS DS
	CX = function/category
	DS:DX -> parameter block
	STACK: WORD value of AX on entry to INT 21 (440Ch or 440Dh)
	???
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	this function is called by the DOS 4.0 kernel
--------N-2F112C-----------------------------
INT 2F CU - NETWORK REDIRECTOR (DOS 4+) - "UPDATE_CB" - ???
	AX = 112Ch
	SS = DOS DS
	SDA current SFT pointer -> SFT for file
	???
Return: CF set on error
Note:	called by SHARE in DOS 5.0-6.0
--------N-2F112D-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - EXTENDED ATTRIBUTES
	AX = 112Dh
	BL = subfunction (value of AL on INT 21)
	    02h get extended attributes
	    03h get extended attribute properties
	    04h set extended attributes
		Return: CF clear
	    else ???
		Return: CX = ??? (00h or 02h for DOS 4.01)
	ES:DI -> SFT for file
	SS = DOS DS
Return: DS = DOS DS
Note:	this function is called by the DOS 4.0 kernel on INT 21/AX=5702h,
	  INT 21/AX=5703h, and INT 21/AX=5704h
SeeAlso: INT 21/AX=5702h,INT 21/AX=5703h,INT 21/AX=5704h,INT 21/AH=6Eh
--------N-2F112E-----------------------------
INT 2F CU - NETWORK REDIRECTOR (DOS 4+) - EXTENDED OPEN/CREATE FILE
	AX = 112Eh
	SS = DS = DOS DS
	ES:DI -> uninitialized SFT for file
	STACK: WORD file attribute for created/truncated file
			low byte = file attributes
			high byte = 00h normal create/open, 01h create new file
	SDA first filename pointer -> fully-qualified filename
	SDA extended file open action = action code
	      (see #0966 at INT 21/AX=6C00h)
	SDA extended file open mode = open mode for file (see INT 21/AX=6C00h)
Return: CF set on error
	    AX = error code
	CF clear if successful
	    CX = result code
		01h file opened
		02h file created
		03h file replaced (truncated)
	    SFT initialized (except handle count, which DOS manages itself)
Note:	this function is called by the DOS 4+ kernel
BUG:	this function is not called correctly under some DOS versions
	  (at least 5.0 and 6.2):
	    the file attribute on the stack is not correct if the action 
	      code is 11h,
		 the result code in CX is not passed back to the application.
SeeAlso: AX=1115h,AX=1116h,AX=1117h,INT 21/AX=6C00h
--------N-2F112F-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - IFS IOCTL
	AX = 112Fh
	SS = DOS DS
	STACK: WORD function in low byte
		00h ???
		    DS:SI -> Current Directory Structure???
		    CL = drive (1=A:)
		01h ???
		    DS:SI -> ???
		    CL = file handle???
		02h ???
		    DS:SI -> Current Directory Structure???
		    DI = ???
		    CX = drive (1=A:)
	???
Return: CF set on error
	    AX = DOS error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
Note:	this function is called by the DOS 4.0 kernel
SeeAlso: INT 21/AH=6Bh
--------N-2F1130-----------------------------
INT 2F CU - IFSFUNC.EXE (DOS 4.x only) - GET IFSFUNC SEGMENT
	AX = 1130h
Return: ES = CS of resident IFSFUNC
--------N-2F1180-----------------------------
INT 2F - LAN Manager Enhanced DOS Services - ???
	AX = 1180h
	???
Return: ???
--------N-2F1182-----------------------------
INT 2F - LAN Manager Enhanced DOS Services - INSTALL SERVICE
	AX = 1182h
	???
Return: ???
--------N-2F1184-----------------------------
INT 2F - LAN Manager Enhanced DOS - ???
	AX = 1184h
	???
Return: ???
--------N-2F1186-----------------------------
INT 2F - LAN Manager Enhanced DOS - DosReadAsynchNmPipe
	AX = 1186h
	DS:SI -> stack frame (see #1392)
Return: CF clear if successful
	CF set if error
	    AX = error code
Note:	LAN Manager enhance mode adds features beyond the standard redirector
	  file/printer services
SeeAlso: AX=118Fh,AX=1190h,AX=1191h,INT 21/AX=5F39h

Format of LAN Manager DosReadAsynchNmPipe stack frame:
Offset	Size	Description	(Table 1392)
 00h	DWORD	-> number of bytes read
 04h	WORD	size of buffer
 06h	DWORD	-> buffer
 0Ah	DWORD	-> return code
 0Eh	DWORD	function to call on completion as function( char far *buffer )
 12h	WORD	handle
--------N-2F118A-----------------------------
INT 2F - LAN Manager 2.0+ DOS Enhanced ENCRYPT.EXE - STREAM ENCRYPTION SERVICE
	AX = 118Ah
	BX = function (0000h or 0001h)
Return: CF clear if successful
	    AX = 1100h success
	CF set if error
	    AX = 0001h, etc.
SeeAlso: AX=1186h,AH=41h,AH=42h,AH=4Bh
--------N-2F118B-----------------------------
INT 2F - LAN Manager Enhanced DOS - ???
	AX = 118Bh
	???
Return: ???
--------N-2F118C-----------------------------
INT 2F - LAN Manager Enhanced DOS - ???
	AX = 118Ch
	???
Return: ???
--------N-2F118E-----------------------------
INT 2F - LAN Manager Enhanced DOS - ???
	AX = 118Eh
	???
Return: ???
--------N-2F118F-----------------------------
INT 2F - LAN Manager Enhanced DOS - DosWriteAsynchNmPipe
	AX = 118Fh
	DS:SI -> stack frame (see #1393)
Return: CF clear if successful
	CF set if error
	    AX = error code
SeeAlso: AX=1186h,AX=1191h,INT 21/AX=5F3Ah

Format of LAN Manager DosReadAsynchNmPipe stack frame:
Offset	Size	Description	(Table 1393)
 00h	DWORD	-> number of bytes read
 04h	WORD	Size of buffer
 06h	DWORD	-> buffer
 0Ah	DWORD	-> return code
 0Eh	DWORD	function to call on completion as function( char far *buffer )
 12h	WORD	handle
--------N-2F1190-----------------------------
INT 2F - LAN Manager Enhanced DOS - DosReadAsynchNmPipe2
	AX = 1190h
	DS:SI -> stack frame (see #1394)
Return: CF clear if successful
	CF set if error
	    AX = error code
SeeAlso: AX=1186h,AX=1191h

Format of LAN Manager DosReadAsynchNmPipe2 stack frame:
Offset	Size	Description	(Table 1394)
 00h	DWORD	-> number of bytes read
 04h	WORD	size of buffer
 06h	DWORD	-> buffer
 0Ah	DWORD	-> return code
 0Eh	DWORD	function to call on completion as function( char far *buffer )
 12h	WORD	handle
 14h	DWORD	???
--------N-2F1191-----------------------------
INT 2F - LAN Manager Enhanced DOS - DosWriteAsynchNmPipe2
	AX = 1191h
	DS:SI -> stack frame (see #1395)
Return: CF clear if successful
	CF set if error
	    AX = error code
SeeAlso: AX=118Fh,AX=1190h,INT 21/AX=5F3Ah

Format of LAN Manager DosReadAsynchNmPipe2 stack frame:
Offset	Size	Description	(Table 1395)
 00h	DWORD	-> number of bytes read
 04h	WORD	size of buffer
 06h	DWORD	-> buffer
 0Ah	DWORD	-> return code
 0Eh	DWORD	function to call on completion as function( char far *buffer )
 12h	WORD	handle
 14h	DWORD	???
--------D-2F1200-----------------------------
INT 2F U - DOS 3+ internal - INSTALLATION CHECK
	AX = 1200h
Return: AL = FFh (for compatibility with other INT 2F functions)
--------D-2F1201-----------------------------
INT 2F U - DOS 3+ internal - CLOSE CURRENT FILE
	AX = 1201h
	SS = DOS DS (must be using a DOS internal stack)
	SDA current SFT pointer -> SFT of file to close
Return: CF set on error
	BX???
	CX new reference count of SFT
	ES:DI -> SFT for file
SeeAlso: AX=1106h,AX=1227h,INT 21/AH=3Eh
--------D-2F1202-----------------------------
INT 2F U - DOS 3+ internal - GET INTERRUPT ADDRESS
	AX = 1202h
	STACK: WORD vector number
Return: ES:BX -> interrupt vector
	STACK unchanged
--------D-2F1203-----------------------------
INT 2F U - DOS 3+ internal - GET DOS DATA SEGMENT
	AX = 1203h
Return: DS = data segment of IBMDOS.COM/MSDOS.SYS
Note:	for DOS prior to version 5.0, the data segment is the same as the code
	  segment
--------D-2F1204-----------------------------
INT 2F U - DOS 3+ internal - NORMALIZE PATH SEPARATOR
	AX = 1204h
	STACK: WORD character to normalize
Return: AL = normalized character (forward slash turned to backslash, all
		  others unchanged)
	ZF set if path separator
	STACK unchanged
--------D-2F1205-----------------------------
INT 2F U - DOS 3+ internal - OUTPUT CHARACTER TO STANDARD OUTPUT
	AX = 1205h
	STACK: WORD character to output
Return: STACK unchanged
Note:	can be called only from within DOS
--------D-2F1206-----------------------------
INT 2F U - DOS 3+ internal - INVOKE CRITICAL ERROR
	AX = 1206h
	DI = error code
	BP:SI -> device driver header
	SS = DOS DS (must be using a DOS internal stack)
	STACK: WORD value to be passed to INT 24 in AX
Return: AL = 0-3 for Abort, Retry, Ignore, Fail
	STACK unchanged
SeeAlso: INT 24
--------D-2F1207-----------------------------
INT 2F U - DOS 3+ internal - MAKE DISK BUFFER MOST-RECENTLY USED
	AX = 1207h
	DS:DI -> disk buffer
Return: nothing
Desc:	move the indicated buffer to the end of the disk buffer chain (least-
	  recently used is first); under DOS 3.3, the buffer is then moved to
	  the start of the disk buffer chain if it was marked unused
Notes:	can be called only from within DOS
	this function is nearly the same as AX=120Fh
SeeAlso: AX=120Fh
--------D-2F1208-----------------------------
INT 2F U - DOS 3+ internal - DECREMENT SFT REFERENCE COUNT
	AX = 1208h
	ES:DI -> SFT
Return: AX = original value of reference count
Notes:	if the reference count was 1, it is set to FFFFh (since 0 indicates
	  that the SFT is not in use).	It is the caller's responsibility to
	  set the reference count to zero after cleaning up.
	used by network redirectors such as MSCDEX
SeeAlso: AX=1106h
--------D-2F1209-----------------------------
INT 2F U - DOS 3+ internal - FLUSH AND FREE DISK BUFFER
	AX = 1209h
	DS:DI -> disk buffer
Return: disk buffer marked unused, contents written to disk if buffer dirty
Note:	can be called only from within DOS
SeeAlso: AX=120Eh,AX=1215h
--------D-2F120A-----------------------------
INT 2F U - DOS 3+ internal - PERFORM CRITICAL ERROR INTERRUPT
	AX = 120Ah
	DS = SS = DOS DS (must be using a DOS internal stack)
	STACK: WORD extended error code
Return: AL = user response (0=ignore, 1=retry, 2=abort, 3=fail)
	CF clear if retry, set otherwise
	STACK unchanged
Notes:	can only be called during a DOS function call, as it uses various
	  fields in the SDA to set up the registers for the INT 24
	reportedly sets current DPB's first root directory sector to 1
SeeAlso: INT 24
--------D-2F120B-----------------------------
INT 2F U - DOS 3+ internal - SIGNAL SHARING VIOLATION TO USER
	AX = 120Bh
	ES:DI -> system file table entry for previous open of file
	STACK: WORD extended error code (should be 20h--sharing violation)
Return: CF clear if operation should be retried
	CF set if operation should not be retried
	    AX = error code (20h) (see #0885 at INT 21/AH=59h)
	STACK unchanged
Notes:	can only be called during a DOS function call
	should only be called if an attempt was made to open an already-open
	  file contrary to the sharing rules
	invokes INT 24 if SFT file opened via FCB or in compatibility mode with
	  inheritance allowed
--------D-2F120C-----------------------------
INT 2F U - DOS 3+ internal - OPEN DEVICE AND SET SFT OWNER/MODE
	AX = 120Ch
	SDA current SFT pointer -> SFT for file
	DS = DOS DS
	SS = DOS DS (must be using a DOS internal stack)
Return: ES, DI, AX destroyed
Notes:	invokes "device open" call on device driver for SFT
	changes owner of last-accessed SFT to calling process if it was opened
	  via FCB
	called by network redirectors such as MSCDEX
--------D-2F120D-----------------------------
INT 2F U - DOS 3+ internal - GET DATE AND TIME
	AX = 120Dh
	SS = DOS DS (must be using a DOS internal stack)
Return: AX = current date in packed format (see #0877 at INT 21/AX=5700h)
	DX = current time in packed format (see #0876 at INT 21/AX=5700h)
SeeAlso: INT 21/AH=2Ah,INT 21/AH=2Ch
--------D-2F120E-----------------------------
INT 2F U - DOS 3+ internal - MARK ALL DISK BUFFERS UNREFERENCED
	AX = 120Eh
	SS = DOS DS (must be using a DOS internal stack)
Return: DS:DI -> first disk buffer
Notes:	clears "referenced" flag on all disk buffers
	in DOS 5+, this has become essentially a NOP, invoking the same code
	  used by AX=1224h (SHARING DELAY)
SeeAlso: AX=1209h,AX=1210h,INT 21/AH=0Dh
--------D-2F120F-----------------------------
INT 2F U - DOS 3+ internal - MAKE BUFFER MOST RECENTLY USED
	AX = 120Fh
	DS:DI -> disk buffer
	SS = DOS DS (must be using a DOS internal stack)
Return: DS:DI -> next buffer in buffer list
Desc:	move the indicated buffer to the end of the disk buffer chain (least-
	  recently used is first); under DOS 3.3, the buffer is then moved to
	  the start of the disk buffer chain if it was marked unused
Note:	this function is the same as AX=1207h except that it returns a
	  pointer to the buffer following the specified buffer in the buffer
	  chain
SeeAlso: AX=1207h
--------D-2F1210-----------------------------
INT 2F U - DOS 3+ internal - FIND UNREFERENCED DISK BUFFER
	AX = 1210h
	DS:DI -> first disk buffer to check
Return: ZF clear if found
	    DS:DI -> first unreferenced disk buffer
	ZF set if not found
Note:	in DOS 5+, this has become essentially a NOP, invoking the same code
	  used by AX=1224h (SHARING DELAY)
SeeAlso: AX=120Eh
--------D-2F1211-----------------------------
INT 2F U - DOS 3+ internal - NORMALIZE ASCIZ FILENAME
	AX = 1211h
	DS:SI -> ASCIZ filename to normalize
	ES:DI -> buffer for normalized filename
Return: destination buffer filled with uppercase filename, with slashes turned
	to backslashes
SeeAlso: AX=121Eh,AX=1221h
--------D-2F1212-----------------------------
INT 2F U - DOS 3+ internal - GET LENGTH OF ASCIZ STRING
	AX = 1212h
	ES:DI -> ASCIZ string
Return: CX = length of string
SeeAlso: AX=1225h
--------D-2F1213-----------------------------
INT 2F U - DOS 3+ internal - UPPERCASE CHARACTER
	AX = 1213h
	STACK: WORD character to convert to uppercase
Return: AL = uppercase character
	STACK unchanged
--------D-2F1214-----------------------------
INT 2F U - DOS 3+ internal - COMPARE FAR POINTERS
	AX = 1214h
	DS:SI = first pointer
	ES:DI = second pointer
Return: ZF set if pointers are equal, ZF clear if not equal
--------D-2F1215-----------------------------
INT 2F U - DOS 3+ internal - FLUSH BUFFER
	AX = 1215h
	DS:DI -> disk buffer
	SS = DOS DS (must be using a DOS internal stack)
	STACK: WORD drives for which to skip buffer
		ignore buffer if drive same as high byte, or bytes differ and
		  the buffer is for a drive OTHER than that given in low byte
Return: STACK unchanged
Note:	can be called only from within DOS
SeeAlso: AX=1209h
--------D-2F1216-----------------------------
INT 2F U - DOS 3+ internal - GET ADDRESS OF SYSTEM FILE TABLE ENTRY
	AX = 1216h
	BX = system file table entry number
Return: CF clear if successful
	    ES:DI -> system file table entry
	CF set if BX greater than FILES=
Note:	supported by DR-DOS 5+
SeeAlso: AX=1220h
--------D-2F1217-----------------------------
INT 2F U - DOS 3+ internal - GET CURRENT DIRECTORY STRUCTURE FOR DRIVE
	AX = 1217h
	SS = DOS DS (must be using a DOS internal stack)
	STACK: WORD drive (0 = A:, 1 = B:, etc)
Return: CF set on error
	    (drive > LASTDRIVE)
	CF clear if successful
	    DS:SI -> current directory structure for specified drive
	STACK unchanged
SeeAlso: AX=1219h
--------D-2F1218-----------------------------
INT 2F U - DOS 3+ internal - GET CALLER'S REGISTERS
	AX = 1218h
Return: DS:SI -> saved caller's AX,BX,CX,DX,SI,DI,BP,DS,ES (on stack)
Note:	only valid while within DOS
--------D-2F1219-----------------------------
INT 2F U - DOS 3+ internal - SET DRIVE???
	AX = 1219h
	SS = DOS DS (must be using a DOS internal stack)
	STACK: WORD drive (0 = default, 1 = A:, etc)
Return: ???
	STACK unchanged
Notes:	calls AX=1217h
	builds a current directory structure if inside server call
	  (INT 21/AX=5D00h)
SeeAlso: AX=1217h,AX=121Fh
--------D-2F121A-----------------------------
INT 2F U - DOS 3+ internal - GET FILE'S DRIVE
	AX = 121Ah
	DS:SI -> filename
Return: AL = drive (0 = default, 1 = A:, etc, FFh = invalid)
	DS:SI -> filename without leading X: (if present)
SeeAlso: INT 21/AH=19h,INT 21/AH=60h
--------D-2F121B-----------------------------
INT 2F U - DOS 3+ internal - SET YEAR/LENGTH OF FEBRUARY
	AX = 121Bh
	CL = year - 1980
Return: AL = number of days in February
Note:	requires DS to be set to the DOS data segment
SeeAlso: INT 21/AH=2Bh
--------D-2F121C-----------------------------
INT 2F U - DOS 3+ internal - CHECKSUM MEMORY
	AX = 121Ch
	DS:SI -> start of memory to checksum
	CX = number of bytes
	DX = initial checksum
	SS = DOS DS (must be using a DOS internal stack)
Return: AX, CX destroyed
	DX = checksum
	DS:SI -> first byte after checksummed range
Notes:	used by DOS to determine day count since 1/1/80 given a date
	supported by DR-DOS 5.0+
SeeAlso: AX=121Dh
--------D-2F121D-----------------------------
INT 2F U - DOS 3+ internal - SUM MEMORY
	AX = 121Dh
	DS:SI -> memory to add up
	CX = 0000h
	DX = limit
Return: AL = byte which exceeded limit
	CX = number of bytes before limit exceeded
	DX = remainder after adding first CX bytes
	DS:SI -> byte beyond the one which exceeded the limit
Notes:	used by DOS to determine year or month given day count since 1/1/80
	supported by DR-DOS 5.0+
SeeAlso: AX=121Ch
--------D-2F121E-----------------------------
INT 2F U - DOS 3+ internal - COMPARE FILENAMES
	AX = 121Eh
	DS:SI -> first ASCIZ filename
	ES:DI -> second ASCIZ filename
Return: ZF set if filenames equivalent, ZF clear if not
Note:	supported by DR-DOS 5.0+
SeeAlso: AX=1211h,AX=1221h
--------D-2F121F-----------------------------
INT 2F U - DOS 3+ internal - BUILD CURRENT DIRECTORY STRUCTURE
	AX = 121Fh
	SS = DOS DS (must be using a DOS internal stack)
	STACK: WORD drive letter
Return: ES:DI -> current directory structure (will be overwritten by next call)
	STACK unchanged
--------D-2F1220-----------------------------
INT 2F U - DOS 3+ internal - GET JOB FILE TABLE ENTRY
	AX = 1220h
	BX = file handle
Return: CF set on error
	    AL = 6 (invalid file handle)
	CF clear if successful
	    ES:DI -> JFT entry for file handle in current process
Notes:	the byte pointed at by ES:DI contains the number of the SFT for the
	  file handle, or FFh if the handle is not open
	supported by DR-DOS 5.0+
SeeAlso: AX=1216h,AX=1229h
--------D-2F1221-----------------------------
INT 2F U - DOS 3+ internal - CANONICALIZE FILE NAME
	AX = 1221h
	DS:SI -> file name to be fully qualified
	ES:DI -> 128-byte buffer for resulting canonical file name
	SS = DOS DS (must be using a DOS internal stack)
Return: (see INT 21/AH=60h)
Note:	identical to INT 21/AH=60h
SeeAlso: AX=1123h,INT 21/AH=60h
--------D-2F1222-----------------------------
INT 2F U - DOS 3+ internal - SET EXTENDED ERROR INFO
	AX = 1222h
	SS = DOS data segment
	SS:SI -> 4-byte records
		BYTE	error code, FFh = last record
		BYTE	error class, FFh = don't change
		BYTE	suggested action, FFh = don't change
		BYTE	error locus, FFh = don't change
	SDA error code set
Return: SI destroyed
	SDA error class, error locus, and suggested action fields set
Note:	can be called only from within DOS
SeeAlso: AX=122Dh,INT 21/AH=59h,INT 21/AX=5D0Ah
--------D-2F1223-----------------------------
INT 2F U - DOS 3+ internal - CHECK IF CHARACTER DEVICE
	AX = 1223h
	DS = DOS DS
	SS = DOS DS (must be using a DOS internal stack)
	SDA+218h (DOS 3.10-3.30) = eight-character blank-padded name
	SDA+22Bh (DOS 4.0-6.0) = eight-character blank-padded name
Return: CF set if no character device by that name found
	CF clear if found
	    BH = low byte of device attribute word
Note:	can only be called from within DOS
SeeAlso: INT 21/AX=5D06h,INT 21/AX=5D0Bh
--------D-2F1224-----------------------------
INT 2F U - DOS 3+ internal - SHARING RETRY DELAY
	AX = 1224h
	SS = DOS DS (must be using a DOS internal stack)
Return: after delay set by INT 21/AX=440Bh, unless in server call
	  (INT 21/AX=5D00h)
Note:	delay is dependent on the processor speed, and is skipped entirely if
	  inside a server call
SeeAlso: INT 21/AX=440Bh,INT 21/AH=52h,INT 62/AX=0097h
--------D-2F1225-----------------------------
INT 2F U - DOS 3+ internal - GET LENGTH OF ASCIZ STRING
	AX = 1225h
	DS:SI -> ASCIZ string
Return: CX = length of string
Note:	supported by DR-DOS 5.0+
SeeAlso: AX=1212h
--------D-2F1226-----------------------------
INT 2F U - DOS 3.3+ internal - OPEN FILE
	AX = 1226h
	CL = access mode
	DS:DX -> ASCIZ filename
	SS = DOS DS (must be using a DOS internal stack)
Return: CF set on error
	    AL = error code (see #0885 at INT 21/AH=59h)
	CF clear if successful
	    AX = file handle
Notes:	can only be called from within DOS
	equivalent to INT 21/AH=3Dh
	used by NLSFUNC to access COUNTRY.SYS when invoked by the DOS kernel
SeeAlso: AX=1227h,INT 21/AH=3Dh
--------D-2F1227-----------------------------
INT 2F U - DOS 3.3+ internal - CLOSE FILE
	AX = 1227h
	BX = file handle
	SS = DOS DS (must be using a DOS internal stack)
Return: CF set on error
	    AL = 06h invalid file handle
	CF clear if successful
Notes:	can only be called from within DOS
	equivalent to INT 21/AH=3Eh
	used by NLSFUNC to access COUNTRY.SYS when invoked by the DOS kernel
SeeAlso: AX=1106h,AX=1201h,AX=1226h,INT 21/AH=3Eh
--------D-2F1228BP4200-----------------------
INT 2F U - DOS 3.3+ internal - MOVE FILE POINTER
	AX = 1228h
	BP = 4200h, 4201h, 4202h (see INT 21/AH=42h)
	BX = file handle
	CX:DX = offset in bytes
	SS = DOS DS (must be using a DOS internal stack)
Return: as for INT 21/AH=42h
Notes:	equivalent to INT 21/AH=42h, but may only be called from inside a DOS
	  function call
	sets user stack frame pointer to dummy buffer, moves BP to AX, performs
	  LSEEK, and restores frame pointer
	used by NLSFUNC to access COUNTRY.SYS when invoked by the DOS kernel
SeeAlso: INT 21/AH=42h
--------D-2F1229-----------------------------
INT 2F U - DOS 3.3+ internal - READ FROM FILE
	AX = 1229h
	BX = file handle
	CX = number of bytes to read
	DS:DX -> buffer
	SS = DOS DS (must be using a DOS internal stack)
Return: as for INT 21/AH=3Fh
Notes:	equivalent to INT 21/AH=3Fh, but may only be called when already inside
	  a DOS function call
	used by NLSFUNC to access COUNTRY.SYS when invoked by the DOS kernel
SeeAlso: AX=1226h,INT 21/AH=3Fh
--------D-2F122A-----------------------------
INT 2F U - DOS 3.3+ internal - SET FASTOPEN ENTRY POINT
	AX = 122Ah
	BX = entry point to set (0001h or 0002h)
	DS:SI -> FASTOPEN entry point (see #1396,#1397)
		(entry point not set if SI = FFFFh for DOS 4+)
Return: CF set if specified entry point already set
Notes:	entry point in BX is ignored under DOS 3.30
	both entry points set to same handler by DOS 4.01
	DOS 5.0 and 6.0 only set entry point 1

(Table 1396)
Values DOS 3.30+ FASTOPEN entry point is called with:
	AL = 01h  Lookup
	    CX = ??? seems to be offset
	    DI = ??? seems to be offset
	    SI = offset in DOS DS of filename
	AL = 02h  insert file into FASTOPEN cache
	AL = 03h  delete file from FASTOPEN cache
	    SI = offset in DOS DS of filename
	AL = 04h  purge FASTOPEN cache
	    AH = subfunction (00h,01h,02h)
	    ES:DI -> ???
	    CX = ??? (subfunctions 01h and 02h only)
Returns: CF set on error or not installed
Note: function 03h calls function 01h first
SeeAlso: #1397,#1398

(Table 1397)
Values PC-DOS 4.01 FASTOPEN is additionally called with:
	AL = 04h ???
	    AH = 03h
	    ???
	AL = 05h ???
	AL = 0Bh ???
	AL = 0Ch ???
	AL = 0Dh ???
	AL = 0Eh ???
	AL = 0Fh ???
	AL = 10h ???
SeeAlso: #1396,#1398

(Table 1398)
Values MS-DOS 5.0-6.0 FASTOPEN is additionally called with:
	AL = 04h  purge FASTOPEN cache
	    AH = 03h
	    ???
	AL = 05h ???
	    DL = drive (00h = A:)
	    ???
	AL = 06h ???
	    ???
SeeAlso: #1396,#1397
--------D-2F122B-----------------------------
INT 2F U - DOS 3.3+ internal - IOCTL
	AX = 122Bh
	BP = 44xxh
	SS = DOS DS (must be using a DOS internal stack)
	additional registers as appropriate for INT 21/AX=44xxh
Return: as for INT 21/AH=44h
Notes:	equivalent to INT 21/AH=44h, but may only be called when already inside
	  a DOS function call
	sets user stack frame pointer to dummy buffer, moves BP to AX, performs
	  IOCTL, and restores frame pointer
	used by NLSFUNC in accessing COUNTRY.SYS when invoked by the DOS kernel
SeeAlso: INT 21/AH=44h
--------D-2F122C-----------------------------
INT 2F U - DOS 3.3+ internal - GET DEVICE CHAIN
	AX = 122Ch
Return: BX:AX -> header of second device driver (NUL is first) in driver chain
Note:	although this function exists in DR-DOS 5.0 and Novell DOS 7, it
	  always returns 0000h:0000h
SeeAlso: INT 21/AH=52h
--------D-2F122D-----------------------------
INT 2F U - DOS 3.3+ internal - GET EXTENDED ERROR CODE
	AX = 122Dh
Return: AX = current extended error code
SeeAlso: AX=1222h,INT 21/AH=59h
--------D-2F122E-----------------------------
INT 2F U - DOS 4+ internal - GET OR SET ERROR TABLE ADDRESSES
	AX = 122Eh
	DL = subfunction
	    00h get standard DOS error table (see #1399)
		Return: ES:DI -> error table
				 (DOS 4: errors 00h-12h,50h-5Bh)
				 (DOS 5: errors 00h-26h,4Fh,51h-59h)
		 01h set standard DOS error table
		ES:DI -> error table
	    02h get parameter error table (errors 00h-0Ah)
		Return: ES:DI -> error table
	    03h set parameter error table
		ES:DI -> error table
	    04h get critical/SHARE error table (errors 13h-2Bh)
		Return: ES:DI -> error table
	    05h set critical/SHARE error table
		ES:DI -> error table
	    06h get ??? error table
		Return: ES:DI -> error table or 0000h:0000h
	    07h set ??? error table
		ES:DI -> error table
	    08h get error message retriever (see #1400)
		Return: ES:DI -> FAR procedure to fetch error message
	    09h set ??? error table
		ES:DI -> error table
Notes:	if the returned segment on a "get" is 0001h, then the offset specifies
	  the offset of the error message table within COMMAND.COM, and the
	  procedure returned by DL=08h should be called
	DOS 5+ COMMAND.COM does not allow setting any of the addresses (calls
	  with DL odd are ignored); they are always returned with segment 0001h
	for DOS 5.0, the standard and critical/SHARE error tables are combined
	  into a single error table
SeeAlso: AX=0500h,INT 21/AH=59h

Format of DOS 4.x error table:
Offset	Size	Description	(Table 1399)
 00h	BYTE	FFh
 01h  2 BYTEs	04h,00h (DOS version???)
 03h	BYTE	number of error headers following
 04h 2N WORDs	table of all error headers for table
		Offset	Size	Description
		 00h	WORD	error message number
		 02h	WORD	offset of error message from start of header
				error messages are count byte followed by msg
Note:	DOS 5 error tables consist of one word per error number; each word
	  contains either the offset of a counted string or 0000h

(Table 1400)
Call error retrieval function with:
	AX = error number (see #1401)
	DI = offset of error table
Return: ES:DI -> error message (counted string)
Notes:	this function needs to access COMMAND.COM if the messages were not
	  loaded into memory permanently with /MSG; the caller should assume
	  that the returned message will be overwritten by the next call of
	  the function
	supported by DR-DOS 5.0

(Table 1401)
Values for parameter errors:
 01h	Too many parameters
 02h	Required Parameter missing
 03h	Invalid switch
 04h	Invalid keyword
 06h	Parameter value not in allowed range
 07h	Parameter value not allowed
 08h	Parameter value not allowed
 09h	Parameter format not correct
 0Ah	Invalid parameter
 0Bh	Invalid parameter combination
--------D-2F122F-----------------------------
INT 2F U - DOS 4.x internal - SET DOS VERSION NUMBER TO RETURN
	AX = 122Fh
	DX = DOS version number (0000h = return true DOS version)
Note:	not available under DR-DOS 5.0 or 6.0
SeeAlso: INT 21/AH=30h,INT 21/AX=3306h
--------m-2F12FFBX0006-----------------------
INT 2F U - DR-DOS 6, Novell DOS 7 - EMM386.EXE - VIDEO MEMORY SPACE CONTROL
	AX = 12FFh
	BX = 0006h
	DX = 0000h
	CX = function
	    0000h get status of video memory space (MEMMAX /V)
	    0001h map memory into video memory space (MEMMAX +V)
	    0002h unmap memory from video memory space (MEMMAX -V)
Return: CF clear if successful
	    AX = 0000h (successful)
	    BX = segment of reserved video RAM
	    CX = segment of used video RAM
	    DX = segment of first upper MCB
Notes:	this functionality is provided by EMM386, and partially supported by
	  HIDOS.SYS
	BL specifies which program handles the call, BH is the function number
SeeAlso: AX=D201h/BX=4849h
--------O-2F12FFBX0007-----------------------
INT 2F U - Novell DOS 7 - SCRIPT.EXE - GET ???
	AX = 12FFh
	BX = 0007h
	CX = 0000h
Return: CF clear if installed
	    AX = 0000h
	    BX = ??? (4426h)
	    CX = ??? (0068h)
	    DX = PSP segment of resident code???
	    SI = ??? (4AFAh)
	    ES = resident code segment
--------m-2F12FFBX0106-----------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - GET VERSION???
	AX = 12FFh
	BX = 0106h
Return:	CF clear if successful
	    AX = 0000h (successful)
	    BX = EDC0h (signature)
	    CL = memory manager variant (02h,03h)
		(02h when DPMI/VCPI disabled, 03h when DPMI/VCPI loaded)
	    CH = ??? (00h)
	    DX = version??? (0300h for v3.0)
	    ES = segment of EMM386 low-memory stub
Notes:	BL specifies which program handles the call, BH is the function number
	if the word at ES:0012h is nonzero, if contains the offset within
	  segment ES of the CEMM-compatible entry point (see #1402)
	if no other program has hooked INT 67, an alternate installation
	  check is to test for the string
	  "NOVELL EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
	  handler's segment; the word immediately preceding this string
	  contains the offset of the API entry point if it is nonzero
Index:	entry point;Novell EMM386

(Table 1402)
Call Novell EMM386.EXE entry point with:
	AH = 00h get memory manager's status???
	    ???
	AH = 01h set memory manager's status???
	    ???
	AH = 02h Weitek coprocessor support???
	    AL = subfunction???
	more functions???
SeeAlso: #0733 at INT 21/AX=4402h/SF=02h,#2271 at INT 67/AX=FFA5h
--------m-2F12FFBL06-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - ???
	AX = 12FFh
	BL = 06h
	BH = function (02h-09h)
	???
Return: ???
--------O-2F12FFBX0EDC-----------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - CHECK IF MULTITASKING SUPPORT LOADED???
	AX = 12FFh
	BX = 0EDCh
Return: AX = 0000h if ??? loaded
	    CF clear
	    BX = 0000h
Notes:	called by Novell DOS 7 TaskMgr
	if this function returns with AX=0000h, then the code necessary to
	  support the API on INT 2F/AX=2780h is loaded and that API becomes
	  available for use
	because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this function must be invoked
	  with an actual INT 2F instruction instead of some simulation such
	  as a far call to the address in the interrupt vector table
SeeAlso: AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=03h,AX=2780h/CL=04h
--------D-2F13-------------------------------
INT 2F U - DOS 3.2+ - SET DISK INTERRUPT HANDLER
	AH = 13h
	DS:DX -> interrupt handler disk driver calls on read/write
	ES:BX = address to restore INT 13 to on system halt (exit from root
		 shell) or warm boot (INT 19)
Return: DS:DX set by previous invocation of this function
	ES:BX set by previous invocation of this function
Notes:	IO.SYS hooks INT 13 and inserts one or more filters ahead of the
	  original INT 13 handler.  The first is for disk change detection
	  on floppy drives, the second is for tracking formatting calls and
	  correcting DMA boundary errors, the third is for working around
	  problems in a particular version of IBM's ROM BIOS
	before the first call, ES:BX points at the original BIOS INT 13; DS:DX
	  also points there unless IO.SYS has installed a special filter for
	  hard disk reads (on systems with model byte FCh and BIOS date
	  "01/10/84" only), in which case it points at the special filter
	most DOS 3.2+ disk access is via the vector in DS:DX, although a few
	  functions are still invoked via an INT 13 instruction
	this is a dangerous security loophole for any virus-monitoring software
	  which does not trap this call ("INT13", "Nomenklatura", and many
	  Bulgarian viruses are known to use it to get the original ROM entry
	  point)
SeeAlso: INT 13/AH=01h,INT 19,INT 9D"VIRUS"
--------N-2F13-------------------------------
INT 2F U - MS-NET - ???
	AH = 13h
	???
Return: ???
Note:	supposedly used to move (or control the movement of) NCBs
--------U-2F1400-----------------------------
INT 2F C - NLSFUNC.COM - INSTALLATION CHECK
	AX = 1400h
Return: AL = 00h not installed, OK to install
	     01h not installed, not OK
	     FFh installed
Notes:	this function is called by the DOS v3.3+ kernel
	supported by OS/2 v1.3+ compatibility box, which always returns AL=FFh
	supported by DR-DOS 5.0
	documented for MS-DOS 5+, but undocumented in prior versions
SeeAlso: AX=1401h"NLSFUNC",AX=1402h"NLSFUNC"
--------D-2F1400-----------------------------
INT 2F - European MS-DOS 4.0 POPUP - "CheckPu" - INSTALLATION CHECK
	AX = 1400h
Return: AX = FFFFh if installed
	    BX = maximum memory required to save screen and keyboard info
	CF clear if successful
	CF set on error
	    AX = error code
		0002h invalid function
		0004h unknown error
Note:	the POPUP interface is used by background programs (see INT 21/AH=80h)
	  to communicate with the user
SeeAlso: AX=1401h"POPUP",AX=1402h"POPUP",AX=1403h"POPUP"
--------U-2F1401-----------------------------
INT 2F CU - NLSFUNC.COM - CHANGE CODE PAGE
	AX = 1401h
	DS:SI -> internal code page structure (see #1403)
	BX = new code page (see #0962 at INT 21/AX=6602h)
	DX = country code???
Return: AL = status
	     00h successful
	     else DOS error code
Note:	this function is called by the DOS v3.3+ kernel
SeeAlso: AX=1400h"NLSFUNC",AX=1402h"NLSFUNC",INT 21/AH=66h

Format of DOS 3.30 internal code page structure:
Offset	Size	Description	(Table 1403)
 00h  8 BYTEs	???
 08h 64 BYTEs	name of country information file
 48h	WORD	system code page
 4Ah	WORD	number of supported subfunctions
 4Ch  5 BYTEs	data to return for INT 21/AX=6502h
 51h  5 BYTEs	data to return for INT 21/AX=6504h
 56h  5 BYTEs	data to return for INT 21/AX=6505h
 5Bh  5 BYTEs	data to return for INT 21/AX=6506h
 60h 41 BYTEs	data to return for INT 21/AX=6501h
--------D-2F1401-----------------------------
INT 2F - European MS-DOS 4.0 POPUP - "PostPu" - OPEN/CLOSE POPUP SCREEN
	AX = 1401h
	DL = function (00h open, 01h close)
	DH = wait flag
	    00h block until screen opens
	    01h return error if screen is not available
	    02h urgent--always open screen immediately
Return: CF clear if successful
	    BX = amount of memory needed to save screen and keyboard info,
		0000h if default save location can be used (only if DH was 02h)
	CF set on error
Note:	the application using the screen is frozen until the popup screen is
	  closed
SeeAlso: AX=1400h"POPUP",AX=1402h"POPUP",AX=1403h"POPUP"
--------U-2F1402-----------------------------
INT 2F CU - NLSFUNC.COM - GET EXTENDED COUNTRY INFO
	AX = 1402h
	BP = subfunction (same as AL for INT 21/AH=65h)
	BX = code page (see #0962 at INT 21/AX=6602h)
	DX = country code (see #0625 at INT 21/AH=38h)
	DS:SI -> internal code page structure (see #1403)
	ES:DI -> user buffer
	CX = size of user buffer
Return: AL = status
	    00h successful
	    else DOS error code
Notes:	this function is called by the DOS v3.3+ kernel on INT 21/AH=65h
	code page structure apparently only needed for COUNTRY.SYS pathname
SeeAlso: AX=1401h"NLSFUNC",AX=1403h"NLSFUNC",AX=1404h,INT 21/AH=65h
--------D-2F1402-----------------------------
INT 2F - European MS-DOS 4.0 POPUP - "SavePu" - SAVE POPUP SCREEN
	AX = 1402h
	ES:DI -> save buffer (0000h:0000h for default buffer in POPUP)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1404)
SeeAlso: AX=1400h"POPUP",AX=1401h"POPUP",AX=1403h"POPUP"

(Table 1404)
Values for POPUP error code:
 0001h	process does not own screen
 0004h	unknown error
 0005h	invalid pointer
--------U-2F1403-----------------------------
INT 2F CU - NLSFUNC.COM - SET CODE PAGE
	AX = 1403h
	DS:SI -> internal code page structure (see #1403)
	BX = code page (see #0962 at INT 21/AX=6602h)
	DX = country code (see #0625 at INT 21/AH=38h)
Return: AL = status
	     ???
Note:	this function is called by the DOS v3.3+ kernel on INT 21/AH=38h
SeeAlso: AX=1402h"NLSFUNC",AX=1404h,INT 21/AH=38h"SET"
--------D-2F1403-----------------------------
INT 2F - European MS-DOS 4.0 POPUP - "RestorePu" - RESTORE SCREEN
	AX = 1403h
	ES:DI -> buffer containing saved screen
		(0000h:0000h for default buffer in POPUP)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1404)
SeeAlso: AX=1400h"POPUP",AX=1401h"POPUP",AX=1402h"POPUP"
--------U-2F1404-----------------------------
INT 2F CU - NLSFUNC.COM - GET COUNTRY INFO
	AX = 1404h
	BX = code page (see #0962 at INT 21/AX=6602h)
	DX = country code (see #0625 at INT 21/AH=38h)
	DS:SI -> internal code page structure (see #1403)
	ES:DI -> user buffer
Return: AL = status
	     ???
Notes:	this function is called by the DOS v3.3+ kernel on INT 21/AH=38h
	code page structure apparently only needed for COUNTRY.SYS pathname
SeeAlso: AX=1402h,AX=1403h,INT 21/AH=38h"GET"
--------U-2F14FE-----------------------------
INT 2F U - DR-DOS 5.0 NLSFUNC - GET EXTENDED COUNTRY INFORMATION
	AX = 14FEh
	BX = code page (FFFFh=global code page) (see #0962 at INT 21/AX=6602h)
	DX = country ID (FFFFh=current country) (see #0625 at INT 21/AH=38h)
	ES:DI -> country information buffer
	CL = info ID
	    01h get general internationalization info
	    02h get pointer to uppercase table
	    04h get pointer to filename uppercase table
	    05h get pointer to filename terminator table
	    06h get pointer to collating sequence table
	    07h get pointer to Double-Byte Character Set table
	CF set (used to return error if not installed)
Return: CF clear if successful
	    DS:SI -> requested information
	CF set on error
Notes:	DR-DOS 5.0 NLSFUNC returns CF set and AX=0001h if AL was not 00h, FEh,
	  or FFh on entry.
	the DR-DOS kernel calls this function on INT 21/AX=6501h
	the value in CL is not range-checked by the DR-DOS 5.0 NLSFUNC
SeeAlso: #1405,AX=14FFh,INT 21/AH=65h

Format of DR-DOS COUNTRY.SYS file:
Offset	Size	Description	(Table 1405)
 00h 126 BYTEs	copyright notice (terminated with Ctrl-Z, padded with NULs)
 7Eh	WORD	signature EDC1h
 80h	var	country pointer records
	Offset	Size	Description
	 00h	WORD	country code (0000h if end of array)
	 02h	WORD	code page
	 04h	WORD	??? (0000h)
	 06h  7 WORDs	offsets in file for data tables for subfunctions
			  01h-07h
 var	var	country information
--------U-2F14FF-----------------------------
INT 2F U - DR-DOS 5.0 NLSFUNC - PREPARE CODE PAGE
	AX = 14FFh
	BX = code page
Return: AX = ???
	ZF set if AX=0000h
Notes:	DR-DOS 5.0 NLSFUNC returns CF set and AX=0001h if AL was not 00h, FEh,
	  or FFh on entry.
	passes codepage preparation request to each character device supporting
	  the generic IOCTL call
SeeAlso: AX=14FEh,INT 21/AX=440Ch,INT 21/AX=6602h
--------U-2F1500-----------------------------
INT 2F - DOS 4.00 GRAPHICS.COM - INSTALLATION CHECK
	AX = 1500h
Return: AX = FFFFh
	ES:DI -> ??? (graphics data?)
Note:	this installation check conflicts with the CD-ROM Extensions
	  installation check; moved to AX=AC00h in later versions
SeeAlso: AX=AC00h
--------d-2F1500BX0000-----------------------
INT 2F - CD-ROM - INSTALLATION CHECK
	AX = 1500h
	BX = 0000h
Return: BX = number of CD-ROM drive letters used
	CX = starting drive letter (0=A:)
Notes:	this installation check DOES NOT follow the format used by other
	  software
	this installation check conflicts with the DOS 4.00 GRAPHICS.COM
	  installation check
SeeAlso: INT 2F/AX=D000h/BX=4D44h"Lotus"
--------c-2F1500CH90-------------------------
INT 2F U - CDBLITZ v2.11 - INSTALLATION CHECK
	AX = 1500h
	CH = 90h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CX = 1234h if installed
	    CF clear
	    DX = BCD version number (DH = major, DL = minor)
Program: CDBLITZ is a CD-ROM cache by Blitz 'n' Software, Inc.
SeeAlso: AX=1500h/CH=99h
--------c-2F1500CH91-------------------------
INT 2F U - CDBLITZ v2.11 - GET STATISTICS
	AX = 1500h
	CH = 91h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
	ES:BX -> statistics record (see #1406)
SeeAlso: AX=1500h/CH=90h,AX=1500h/CH=97h

Format of CDBLITZ statistics record:
Offset	Size	Description	(Table 1406)
 00h	WORD	cache mode (see also AX=1500h/CH=94h)
		0001h 'min', 0002h 'max'
 02h	DWORD	number of read calls???
 06h	DWORD	total number of sectors read
 0Ah	DWORD	unused??? (zero)
 0Eh	DWORD	number of cache hit sectors
 12h	WORD	cache size in KB
 14h	WORD	unused??? (zero)
 16h	WORD	cache state (0000h disabled, 0001h enabled)
--------c-2F1500CH92-------------------------
INT 2F U - CDBLITZ v2.11 - ENABLE CACHE
	AX = 1500h
	CH = 92h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
SeeAlso: AX=1500h/CH=90h,AX=1500h/CH=93h,AX=1500h/CH=94h
--------c-2F1500CH93-------------------------
INT 2F U - CDBLITZ v2.11 - DISABLE CACHE
	AX = 1500h
	CH = 93h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
SeeAlso: AX=1500h/CH=90h,AX=1500h/CH=92h,AX=1500h/CH=95h
--------c-2F1500CH94-------------------------
INT 2F U - CDBLITZ v2.11 - SET 'MAX' MODE (CACHE BOTH DIRECTORIES AND DATA)
	AX = 1500h
	CH = 94h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
SeeAlso: AX=1500h/CH=90h,AX=1500h/CH=92h,AX=1500h/CH=95h
--------c-2F1500CH95-------------------------
INT 2F U - CDBLITZ v2.11 - SET 'MIN' MODE (CACHE ONLY DIRECTORY ENTRIES)
	AX = 1500h
	CH = 95h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
SeeAlso: AX=1500h/CH=90h,AX=1500h/CH=94h
--------c-2F1500CH96-------------------------
INT 2F U - CDBLITZ v2.11 - FLUSH CACHE
	AX = 1500h
	CH = 96h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
Note:	this function resets the counts for number of sectors read and number
	  of cache hits, but no other values in the statistics record
	  (see #1406)
SeeAlso: AX=1500h/CH=90h
--------c-2F1500CH97-------------------------
INT 2F U - CDBLITZ v2.11 - GET CACHE STATISTICS
	AX = 1500h
	CH = 97h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
	AL = cache mode (01h 'min', 02h 'max') (see also AX=1500h/CH=94h)
	AH = cache state (00h disabled, 01h enabled)
	BX = cache size in KB
	DX:CX = total number of reads
	DI:SI = number of cache hits
SeeAlso: AX=1500h/CH=90h,AX=1500h/CH=91h
--------c-2F1500CH99-------------------------
INT 2F U - CDBLITZ v2.11 - UNINSTALL
	AX = 1500h
	CH = 99h (function number)
	BX = 1234h (magic value for CDBLITZ)
Return: CF clear
	???
Program: CDBLITZ is a CD-ROM cache by Blitz 'n' Software, Inc.
SeeAlso: AX=1500h/CH=90h
--------d-2F1501-----------------------------
INT 2F - CD-ROM - GET DRIVE DEVICE LIST
	AX = 1501h
	ES:BX -> buffer to hold drive letter list (5 bytes per drive letter)
Return: buffer filled, for each drive letter
	  BYTE	subunit number in driver
	  DWORD address of device driver header
--------d-2F1502-----------------------------
INT 2F - CD-ROM - GET COPYRIGHT FILE NAME
	AX = 1502h
	ES:BX -> 38-byte buffer for name of copyright file
	CX = drive number (0=A:)
Return: CF set if drive is not a CD-ROM drive
	    AX = 000Fh (invalid drive)
	CF clear if successful
SeeAlso: AX=1503h
--------d-2F1503-----------------------------
INT 2F - CD-ROM - GET ABSTRACT FILE NAME
	AX = 1503h
	ES:BX -> 38-byte buffer for name of abstract file
	CX = drive number (0=A:)
Return: CF set if drive is not a CD-ROM drive
	    AX = 000Fh (invalid drive)
	CF clear if successful
SeeAlso: AX=1502h,AX=1504h
--------d-2F1504-----------------------------
INT 2F - CD-ROM - GET BIBLIOGRAPHIC DOC FILE NAME
	AX = 1504h
	ES:BX -> 38-byte buffer for name of bibliographic documentation file
	CX = drive number (0=A:)
Return: CF set if drive is not a CD-ROM drive
	    AX = 000Fh (invalid drive)
	CF clear if successful
SeeAlso: AX=1502h,AX=1503h
--------d-2F1505-----------------------------
INT 2F - CD-ROM - READ VTOC
	AX = 1505h
	ES:BX -> 2048-byte buffer
	CX = drive number (0=A:)
	DX = sector index (0=first volume descriptor,1=second,...)
Return: CF set on error
	    AX = error code (15=invalid drive,21=not ready)
	CF clear if successful
	    AX = volume descriptor type (1=standard,FFh=terminator,0=other)
--------d-2F1506-----------------------------
INT 2F - CD-ROM - TURN DEBUGGING ON
	AX = 1506h
	BX = debugging function to enable
Note:	reserved for development
SeeAlso: AX=1507h
--------d-2F1507-----------------------------
INT 2F - CD-ROM - TURN DEBUGGING OFF
	AX = 1507h
	BX = debugging function to disable
Note:	reserved for development
SeeAlso: AX=1506h
--------d-2F1508-----------------------------
INT 2F - CD-ROM - ABSOLUTE DISK READ
	AX = 1508h
	ES:BX -> buffer
	CX = drive number (0=A:)
	SI:DI = starting sector number
	DX = number of sectors to read
Return: CF set on error
	    AL = error code (15=invalid drive,21=not ready)
	CF clear if successful
SeeAlso: AX=1509h
--------d-2F1509-----------------------------
INT 2F - CD-ROM - ABSOLUTE DISK WRITE
	AX = 1509h
	ES:BX -> buffer
	CX = drive number (0=A:)
	SI:DI = starting sector number
	DX = number of sectors to write
Note:	corresponds to INT 26h and is currently reserved and nonfunctional
SeeAlso: AX=1508h
--------d-2F150A-----------------------------
INT 2F - CD-ROM - RESERVED
	AX = 150Ah
--------d-2F150B-----------------------------
INT 2F - CD-ROM v2.00+ - DRIVE CHECK
	AX = 150Bh
	CX = drive number (0=A:)
Return: BX = ADADh if MSCDEX.EXE installed
	    AX = support status
		0000h if drive not supported
		nonzero if supported
SeeAlso: AX=150Dh
--------d-2F150C-----------------------------
INT 2F - CD-ROM v2.00+ - GET MSCDEX.EXE VERSION
	AX = 150Ch
Return: BH = major version
	BL = minor version
Note:	MSCDEX.EXE versions prior to 2.00 return BX=0
--------d-2F150D-----------------------------
INT 2F - CD-ROM v2.00+ - GET CD-ROM DRIVE LETTERS
	AX = 150Dh
	ES:BX -> buffer for drive letter list (1 byte per drive)
Return: buffer filled with drive numbers (0=A:).  Each byte corresponds
	to the drive in the same position for function 1501h
SeeAlso: AX=150Bh
--------d-2F150E-----------------------------
INT 2F - CD-ROM v2.00+ - GET/SET VOLUME DESCRIPTOR PREFERENCE
	AX = 150Eh
	BX = subfunction
	    00h get preference
		DX = 0000h
		Return: DX = preference settings
	    01h set preference
		DH = volume descriptor preference
		    01h = primary volume descriptor
		    02h = supplementary volume descriptor
		DL = supplementary volume descriptor preference
		    01h = shift-Kanji
	CX = drive number (0=A:)
Return: CF set on error
	    AX = error code (15=invalid drive,1=invalid function)
	CF clear if successful
--------d-2F150F-----------------------------
INT 2F - CD-ROM v2.00+ - GET DIRECTORY ENTRY
	AX = 150Fh
	CL = drive number (0=A:)
	CH bit 0 = copy flag
		clear if direct copy
		set if copy to structure which removes ISO/High Sierra diffs
	ES:BX -> ASCIZ path name
	SI:DI -> buffer for directory entry (see #1407,#1408)
		 minimum 255 bytes for direct copy
Return: CF set on error
	    AX = error code
	CF clear if successful
	    AX = disk format (0=High Sierra,1=ISO 9660)

Format of CD-ROM directory entry (direct copy):
Offset	Size	Description	(Table 1407)
 00h	BYTE  length of directory entry
 01h	BYTE  length of XAR in Logical Block Numbers
 02h	DWORD LBN of data, Intel (little-endian) format
 06h	DWORD LBN of data, Motorola (big-endian) format
 0Ah	DWORD length of file, Intel format
 0Eh	DWORD length of file, Motorola format
---High Sierra---
 12h  6 BYTEs date and time
 18h	BYTE  bit flags
 19h	BYTE  reserved
---ISO 9660---
 12h  7 BYTEs date and time
 19h	BYTE  bit flags
---both formats---
 1Ah	BYTE  interleave size
 1Bh	BYTE  interleave skip factor
 1Ch	WORD  volume set sequence number, Intel format
 1Eh	WORD  volume set sequence number, Motorola format
 20h	BYTE  length of file name
 21h  N BYTEs file name
	BYTE (optional) padding if filename is odd length
      N BYTEs system data
SeeAlso: #1408

Format of CD-ROM directory entry (canonicalized):
Offset	Size	Description	(Table 1408)
 00h	BYTE	length of XAR in Logical Block Numbers
 01h	DWORD	Logical Block Number of file start
 05h	WORD	size of disk in logical blocks
 07h	DWORD	file length in bytes
 0Bh  7 BYTEs	date and time
 12h	BYTE	bit flags
 13h	BYTE	interleave size
 14h	BYTE	interleave skip factor
 15h	WORD	volume set sequence number
 17h	BYTE	length of file name
 18h 38 BYTEs	ASCIZ filename
 3Eh	WORD	file version number
 40h	BYTE	number of bytes of system use data
 41h 220 BYTEs	system use data
SeeAlso: #1407
--------d-2F1510-----------------------------
INT 2F - CD-ROM v2.10+ - SEND DEVICE DRIVER REQUEST
	AX = 1510h
	CX = CD-ROM drive letter (0 = A, 1 = B, etc)
	ES:BX -> CD-ROM device driver request header (see #1382 at AX=0802h)
--------W-2F1600-----------------------------
INT 2F - MS Windows - WINDOWS ENHANCED MODE INSTALLATION CHECK
	AX = 1600h
Return: AL = status
	    00h neither Windows 3.x enhanced mode nor Windows/386 2.x running
	    01h Windows/386 2.x running
	    80h XMS version 1 driver installed (neither Windows 3.x enhanced
		  mode nor Windows/386 2.x running) (obsolete--see note)
	    FFh Windows/386 2.x running
	AL = anything else
	    AL = Windows major version number >= 3
	    AH = Windows minor version number
Notes:	INT 2F/AH=16h comprises an API for non-Windows programs (DOS device
	  drivers, TSRs, and applications) to cooperate with multitasking
	  Windows/386 2.x and Windows 3.x and higher enhanced mode.
	certain calls are also supported in the Microsoft 80286 DOS extender in
	  Windows standard mode
	this function served as the installation check and AX=1610h served to
	  get the driver entry point for XMS version 1, which is now obsolete.
	  Use AX=4300h and AX=4310h instead
SeeAlso: AX=160Ah,AX=1610h,AX=4300h,AX=4680h
Index:	installation check;XMS version 1
--------W-2F1602-----------------------------
INT 2F - MS Windows/386 2.x - GET API ENTRY POINT
	AX = 1602h
Return: ES:DI -> Windows/386 2.x API procedure entry point
Notes:	this interface is supported in Windows 3.x only for 2.x compatibility
	to get the current virtual machine (VM) ID in Windows/386 2.x:
	    AX = 0000h
	    ES:DI -> return address
	    JUMP to address returned from INT 2F/AX=1602h
	After JUMP, at return address:
	    BX = current VM ID.
SeeAlso: AX=C020h
--------W-2F1603-----------------------------
INT 2F - MS Windows/386 - GET INSTANCE DATA
	AX = 1603h
Return: AX = 5248h ('RH') if supported
	    DS:SI -> Windows/386 instance data (see #1409)
Notes:	reportedly supported by RM Nimbus MS-DOS 3.3 kernel
	this function is called by DOSMGR when AX=1607h/BX=0015h is not
	  supported, as is the case in DOS versions prior to 5.0
	see Geoff Chappell's book _DOS_Internals_ for additional discussions of
	  this function, DOSMGR's behavior, and instancing in general
SeeAlso: AX=1607h/BX=0015h

Format of Windows/386 instance data:
Offset	Size	Description	(Table 1409)
 00h	WORD	segment of IO.SYS (0000h = default 0070h)
 02h	WORD	offset in IO.SYS of STACKS data structure (DOS 3.2x)
		0000h if not applicable
 04h	WORD	number of instance data entries (max 32)
 06h	Array of instance data entries
	Offset	Size	Description
	 00h	WORD	segment (0002h = DOS kernel)
	 02h	WORD	offset
	 04h	WORD	size
--------W-2F1605-----------------------------
INT 2F - MS Windows - WINDOWS ENHANCED MODE & 286 DOSX INIT BROADCAST
	AX = 1605h
	ES:BX = 0000h:0000h
	DS:SI = 0000h:0000h
	CX = 0000h
	DX = flags
	    bit 0 = 0 if Windows enhanced-mode initialization
	    bit 0 = 1 if Microsoft 286 DOS extender initialization
	    bits 1-15 reserved (undefined)
	DI = version number (major in upper byte, minor in lower)
Return: CX = 0000h if okay for Windows to load
	CX = FFFFh (other registers unchanged) if Windows 3.0 in standard mode
	CX <> 0 if Windows should not load
	ES:BX -> startup info structure (see #1410)
	DS:SI -> virtual86 mode enable/disable callback or 0000h:0000h
	      (see #1413)
Notes:	the Windows enhanced mode loader and Microsoft 286 DOS extender will
	  broadcast an INT 2F/AX=1605h call when initializing.	Any DOS device
	  driver or TSR can watch for this broadcast and return the appropriate
	  values.  If the driver or TSR returns CX <> 0, it is also its
	  responsibility to display an error message.
	each handler must first chain to the prior INT 2F handler with
	  registers unchanged before processing the call
	if the handler requires local data on a per-VM basis, it must store the
	  returned ES:BX in the "next" field of a startup info structure and
	  return a pointer to that structure in ES:BX
	a single TSR may set the V86 mode enable/disable callback; if DS:SI is
	  already nonzero, the TSR must fail the initialization by setting CX
	  nonzero
	MSD checks for Windows 3.0 running in standard mode by testing whether
	  CX=FFFFh and other registers are unchanged on return
	Novell DOS v7.0 (Update 8 - Update 11) TASKMGR in multitasking mode
	  uses this broadcast, even if TASKMGR.INI sets WinPresent= to OFF
	Micrsoft's EMM386.EXE for DOS 5+ when installed with the NOEMS option
	  changes its driver name from EMMQXXX0 to EMMXXXX0 while Windows is
	  active
SeeAlso: AX=1606h,AX=1608h,AX=4B05h

Format of Windows Startup Information Structure:
Offset	Size	Description	(Table 1410)
 00h  2 BYTEs	major, minor version of info structure
 02h	DWORD	pointer to next startup info structure or 0000h:0000h
 06h	DWORD	pointer to ASCIZ name of virtual device file or 0000h:0000h
 0Ah	DWORD	virtual device reference data (see #1412)
		(only used if above nonzero)
 0Eh	DWORD	pointer to instance data records (see #1411) or 0000h:0000h

Format of one Instance Item in array:
Offset	Size	Description	(Table 1411)
 00h	DWORD	address of instance data (end of array if 0000h:0000h)
 04h	WORD	size of instance data

Format of Virtual Device Reference Data:
Offset	Size	Description	(Table 1412)
 00h	DWORD	physical address of ??? or 00000000h
 04h	DWORD	physical address of ??? table
 08h	DWORD	"DEST_PAGE" address to which pages must be mapped
 0Ch  N DWORDs	"SRC_PAGE" physical addresses of the pages
		00000000h = end of table
Note:	EMM386.EXE sets the first pointer to the start of the device driver
	  chain, the second pointer to a field of 40h bytes followed by a
	  16-bit offset to the end of the SRC_PAGE table, and DEST_PAGE to
	  the start segment of the UMB area

(Table 1413)
Values Windows virtual mode enable/disable procedure is called with:
	AX = 0000h disable V86 mode
	AX = 0001h enable V86 mode
	interrupts disabled
Return: CF set on error
	CF clear if successful
	interrupts disabled
--------W-2F1606-----------------------------
INT 2F - MS Windows - WINDOWS ENHANCED MODE & 286 DOSX EXIT BROADCAST
	AX = 1606h
	DX = flags
	    bit 0 = 0 if Windows enhanced-mode exit
	    bit 0 = 1 if Microsoft 286 DOS extender exit
	    bits 1-15 reserved (undefined)
Notes:	if the init broadcast fails (AX=1605h returned CX <> 0), then this
	  broadcast will be issued immediately.
	this call will be issued in real mode
	Novell DOS v7.0 (Update 8 - Update 10) TASKMGR in multitasking mode
	  uses this broadcast, even if TASKMGR.INI sets Win31Present= to OFF
SeeAlso: AX=1605h,AX=1609h
--------W-2F1607-----------------------------
INT 2F - MS Windows - VIRTUAL DEVICE CALL OUT API
	AX = 1607h
	BX = virtual device ID (see #1419)
	CX = (usually) callout subfunction
Return: (usually) AX,BX,CX,DX,ES contain results
Notes:	more of a convention than an API, this call specifies a standard
	  mechanism for Windows enhanced-mode virtual devices (VxD's) to talk
	  to DOS device drivers and TSRs
	see below for details on several virtual devices
SeeAlso: AX=1605h,AX=1607h/BX=000Ch,AX=1607h/BX=0014h,AX=1607h/BX=0015h
SeeAlso: AX=1607h/BX=0018h,AX=1684h,AX=C020h
--------W-2F1607BX0006-----------------------
INT 2F - MS Windows - "V86MMGR" VIRTUAL DEVICE API
	AX = 1607h
	BX = 0006h (VxD identifier of "V86MMGR")
	CX = 0000h
Return: AX = status
	    0000h if local A20 state changed
	    1607h if A20 unchanged
	    other if global A20 state changed
--------W-2F1607BX000C-----------------------
INT 2F - MS Windows - "VMD" VIRTUAL MOUSE DEVICE API
	AX = 1607h
	BX = 000Ch (VxD identifier of "VMD")
Return: CX = nonzero if mouse driver already virtualized
Note:	VMD (Virtual Mouse Driver) calls this and then checks whether CX is
	  nonzero; if yes, it will not automatically virtualize the mouse
	  driver.  This would be used if MOUSE.COM already virtualizes
	  itself using the Windows API.
SeeAlso: AX=1607h/BX=0014h,AX=1607h/BX=0015h
----------2F1607BX0010-----------------------
INT 2F C - MS Windows 3.1 - "BLOCKDEV" VIRTUAL HARD DISK DEVICE API
	AX = 1607h
	BX = 0010h (VxD identifier of "BLOCKDEV")
	CX = function
	    0001h starting FastDisk compatibility tests
	    0002h ending FastDisk compatibility tests
	    0003h check if FastDisk installation allowed
		Return: CX = 0000h if allowed
Note:	this interface is called by the Windows FastDisk driver (such as
	  WDCTRL) when it thinks that the INT 13h handler immediately below
	  IO.SYS's INT 13h code is not in ROM; it should be supported by any
	  program which hooks itself underneath IO.SYS's INT 13h code with
	  INT 2F/AH=13h
SeeAlso: AX=1607h/BX=0014h,INT 2F/AH=13h
--------W-2F1607BX0014-----------------------
INT 2F - MS Windows - "VNETBIOS" VIRTUAL DEVICE API
	AX = 1607h
	BX = 0014h (VxD identifier of "VNETBIOS")
Return: ES:DI -> 128-byte table specifying VNETBIOS actions for each NetBIOS
		command code (see #1414)
Note:	VNETBIOS (Virtual NetBIOS) calls this function to determine whether
	  the NetBIOS has an extensions Windows should know about
SeeAlso: AX=1607h/BX=000Ch,AX=1607h/BX=0010h,AX=1607h/BX=0015h

(Table 1414)
Values for VNETBIOS action code:
 00h	"VN_Unknown" unknown command
 04h	"VN_No_Map"  no memory mapping necessary
 08h	"VN_Map_In"  input buffer is quickly used, so no global mapping needed
 0Ch	"VN_Map_In"  output buffer is quickly used, so no global mapping needed
 10h	"VN_Map_In_Out"	 buffer is quickly used, so no global mapping needed
 14h	"VN_Chain_Send"	 the chain-send command
 18h	"VN_Cancel"	special case for cancel command
 1Ch	"VN_Buffer_In"	buffer is incoming
 20h	"VN_Buffer_Out" buffer is outgoing
 24h	"VN_Buffer_In_Out" buffer used for both incoming and outgoing data
--------D-2F1607BX0015-----------------------
INT 2F C - MS Windows - "DOSMGR" VIRTUAL DEVICE API
	AX = 1607h
	BX = 0015h (VxD identifier of "DOSMGR")
	CX = function
	    0000h query instance processing
		DX = 0000h
		Return: CX = state
			    0000h not instanced
			    other instanced (DOS 5+ kernel returns 0001h)
				DX = segment of DOS drivers or 0000h for
					default of 0070h
				ES:BX -> patch table (see #1416)
	    0001h set patches in DOS
		DX = bit mask of patch requests (see #1415)
		Return: AX = B97Ch
			BX = bit mask of patches applied (see #1415)
			DX = A2ABh
	    0002h remove patches in DOS (ignored by DOS 5.0 kernel)
		DX = bit mask of patch requests (see function 0001h)
		Return: CX = 0000h (DOS 5-6)
		Note:	return values are ignored by DOSMGR in Windows 3.1
		 0003h get size of DOS data structures
		DX = bit mask of request (only one bit can be set)
		    bit 0: Current Directory Structure size
		Return: if supported request:
			    AX = B97Ch
			    CX = size in bytes of requested structure
			    DX = A2ABh
			else:
			    CX = 0000h
			    all other registers preserved
	    0004h determine instanced data structures
		Return: AX = B97Ch if supported
			DX = A2ABh if supported (DOS 5+ kernel returns 0000h)
			BX = bit mask of instanced items
			    bit 0: CDS
			    bit 1: SFT
			    bit 2: device list
			    bit 3: DOS swappable data area
	    0005h get device driver size
		ES = segment of device driver
		Return: DX:AX = 0000h:0000h on error (not dev. driver segment)
			DX:AX = A2ABh:B97Ch if successful
			    BX:CX = size of device driver in bytes
Notes:	DOSMGR (DOS Manager) will check whether the OEM DOS/BIOS data has
	  been instanced via this API and will not perform its own default
	  instancing of the normal DOS/BIOS data if so; if this API is not
	  supported, DOSMGR will also try to access instancing data through
	  INT 2F/AX=1603h
	these functions are supported by the DOS 5+ kernel; DOSMGR contains
	  tables of instancing information for earlier versions of DOS
	see Geoff Chappell's book _DOS_Internals_ for additional discussions of
	  DOSMGR's behavior and instancing in general
SeeAlso: AX=1603h,AX=1605h,AX=1607h/BX=000Ch,AX=1607h/BX=0014h,AX=1684h

Bitfields for DOSMGR patch requests:
Bit(s)	Description	(Table 1415)
 0	enable critical sections
 1	NOP setting/checking user ID
 2	turn INT 21/AH=3Fh on STDIN into polling loop
 3	trap stack fault in "SYSINIT" to WIN386
 4	BIOS patch to trap "Insert disk X:" to WIN386

Format of DOSMGR patch table:
Offset	Size	Description	(Table 1416)
 00h  2 BYTEs	DOS version (major, minor)
 02h	WORD	offset in DOS data segment of "SAVEDS"
 04h	WORD	offset in DOS data segment of "SAVEBX"
 06h	WORD	offset in DOS data segment of InDOS flag
 08h	WORD	offset in DOS data segment of User ID word
 0Ah	WORD	offset in DOS data segment of "CritPatch" table to enable
		  critical section calls (see INT 2A/AH=80h)
 0Ch	WORD	(DOS 5+ only) offset in DOS data segment of "UMB_HEAD",
		  containing segment of last MCB in conventional memory
--------W-2F1607BX0018-----------------------
INT 2F C - MS Windows - "VMPoll" VIRTUAL DEVICE - IDLE CALLOUT
	AX = 1607h
	BX = 0018h (VMPoll VxD ID)
	CX = 0000h
Return: AX = status
	    0000h if timeslice used
	    nonzero if timeslice not needed
Note:	when VMPoll makes this callout, all virtual machines are idle
SeeAlso: AX=1607h
--------W-2F1607BX0021--------------------------------------
INT 2F C - MS Windows - "PageFile" VIRTUAL DEVICE - GET LOCK BYTE
	AX = 1607h
	BX = 0021h (PageFile VxD ID)
	CX = 0000h
Return: AX = status
		 0000h success
		ES:DI -> cache lock byte in disk cacher
	    other no disk cache or unsupported
Notes:	PageFile issues this call on real-mode initialization in order to allow
	  disk caches to provide it with a byte which it can use to temporarily
	  lock the disk cache; VMPOLL also issues this call, so it is made
	  twice each time Windows starts up
	if this call fails, PageFile falls back to other techniques for locking
	  the disk cache
SeeAlso: AX=1607h
--------E-2F1607BX22C0-----------------------
INT 2F - Rational Systems DOS/4GW - ???
	AX = 1607h
	BX = 22C0h
	???
Return: ???
SeeAlso: INT 15/AX=BF02h,INT 15/AX=BF04h
--------W-2F1608-----------------------------
INT 2F C - MS Windows - WINDOWS ENHANCED MODE INIT COMPLETE BROADCAST
	AX = 1608h
Notes:	called after all installable devices have been initialized
	real-mode software may be called between the Windows enhanced-mode init
	  call (AX=1605h) and this call; the software must detect this
	  situation
SeeAlso: AX=1605h,AX=1609h
--------W-2F1609-----------------------------
INT 2F C - MS Windows - WINDOWS ENHANCED MODE BEGIN EXIT BROADCAST
	AX = 1609h
Note:	called at the beginning of a normal exit sequence; not made in the
	  event of a fatal system crash
SeeAlso: AX=1606h,AX=1608h
--------W-2F160A-----------------------------
INT 2F - MS Windows 3.1 - IDENTIFY WINDOWS VERSION AND TYPE
	AX = 160Ah
Return: AX = 0000h if call supported
	    BX = version (BH=major, BL=minor)
	    CX = mode (0002h = standard, 0003h = enhanced)
SeeAlso: AX=1600h,AX=4680h
--------W-2F160B-----------------------------
INT 2F - MS Windows 3.1 - IDENTIFY TSRs
	AX = 160Bh
	ES:DI -> communication structure (see #1417) or 0000h:0000h
Return: ES:DI -> communication structure
Desc:	this call allows Windows-aware TSRs to make themselves known to
	  Windows.
Note:	the TSR should allocate a communication structure, place the given
	  ES:DI pointer in the first field, and return a pointer to the new
	  structure
SeeAlso: AX=1605h,AX=160Ch,AX=4B01h,AX=4B05h

Format of TSR-to-Windows communication structure:
Offset	Size	Description	(Table 1417)
 00h	DWORD	pointer to next structure
 04h	WORD	PSP segment
 06h	WORD	API version ID (0100h)
 08h	WORD	EXEC flags
		bit 0: "WINEXEC"
		bit 1: "LOADLIBRARY"
		bit 2: "OPENDRIVER"
 0Ah	WORD	"exec_cmd_show"
 0Ch	DWORD	"exec_cmd"
 10h  4 BYTEs	reserved (0)
 14h	DWORD	pointer to TSR ID block (see #1418)
 18h	DWORD	pointer to TSR data block or 0000h:0000h

Format of Norton Utilities 6.0 TSR ID block:
Offset	Size	Description	(Table 1418)
 00h	WORD	length of name string
 02h  N BYTEs	name of TSR's executable
--------W-2F160C-----------------------------
INT 2F - MS Windows 3.1 - DETECT ROMs
	AX = 160Ch
	???
Return: ???
Note:	used by ROM Windows
SeeAlso: AX=160Bh
--------m-2F1610-----------------------------
INT 2F - XMS v1.x only - GET DRIVER ADDRESS
	AX = 1610h
	details unavailable
Note:	this function and AX=1600h were only used in XMS version 1 and are now
	  obsolete.  Use AX=4300h and AX=4310h instead
SeeAlso: AX=1600h,AX=4310h
--------W-2F1680-----------------------------
INT 2F - MS Windows, DPMI, various - RELEASE CURRENT VIRTUAL MACHINE TIME-SLICE
	AX = 1680h
Return: AL = status
	    00h if the call is supported
	    80h (unchanged) if the call is not supported
Notes:	programs can use this function in idle loops to enhance performance
	  under multitaskers; this call is supported by MS Windows 3.0, DOS 5+,
	  DPMI 1.0+, and in OS/2 2.0+ for multitasking DOS applications
	does not block the program; it just gives up the remainder of the time
	  slice
	should not be used by Windows-specific programs
	when called very often without intermediate screen output under WIN 3+,
	  the VM will go into an idle-state and will not receive the next slice
	  before 8 seconds. This time can be changed in SYSTEM.INI through
	  "IdleVMWakeUpTime=". Setting to zero results in a long wait.
SeeAlso: INT 15/AX=1000h,INT 15/AX=5305h,INT 21/AH=89h,INT 7A/BX=000Ah
--------W-2F1681-----------------------------
INT 2F - MS Windows 3+ - BEGIN CRITICAL SECTION
	AX = 1681h
Notes:	used to prevent a task switch from occurring
	should be followed by an INT 2F/AX=1682h call as soon as possible
	nested calls are allowed, and must be followed by an appropriate number
	  of "end critical section" calls
	not supported in Windows/386 2.x. Get INDOS flag with INT 21/AH=34h and
	  increment by hand.
SeeAlso: AX=1682h,INT 15/AX=101Bh,INT 21/AH=34h
--------W-2F1682-----------------------------
INT 2F - MS Windows 3+ - END CRITICAL SECTION
	AX = 1682h
Notes:	not supported in Windows/386 2.x.  Get InDOS flag with INT 21/AH=34h
	  and decrement by hand, taking care not to decrement InDOS flag
	  through zero
SeeAlso: AX=1681h,INT 15/AX=101Ch,INT 21/AH=34h
--------W-2F1683-----------------------------
INT 2F - MS Windows 3+ - GET CURRENT VIRTUAL MACHINE ID
	AX = 1683h
Return: BX = current virtual machine (VM) ID
Notes:	Windows itself currently runs in VM 1, but this can't be relied upon
	VM IDs are reused when VMs are destroyed
	an ID of 0 will never be returned
SeeAlso: AX=1684h,AX=1685h,AX=168Bh
--------W-2F1684-----------------------------
INT 2F - MS Windows - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = virtual device (VxD) ID (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point, or 0:0 if the VxD does not support an API
Note:	some Windows enhanced-mode virtual devices provide services that
	  applications can access.  For example, the Virtual Display Device
	  (VDD) provides an API used in turn by WINOLDAP.
SeeAlso: AX=1683h

(Table 1419)
Values for MS Windows VxD ID:
Value	Name   CallOut V86 PM	Description
 0000h	LPT	    N	N  N	DOS386 LPT Device (Windows for Workgroups 3.11)
 0000h	MSODISUP    N	N  N	MS ODI Support (Windows for Workgroups 3.11)
 0000h	NWNBLINK    N	N  N	Netware NetBIOS (Windows for Workgroups 3.11)
 0000h	SERIAL	    N	N  N	DOS386 Serial Device (Windows for Workgrp 3.11)
 0001h	VMM		N  N	Virtual Machine Manager
 0002h	Debug
 0003h	VPICD		Y  Y	Virtual Prog. Interrupt Controller (PIC) Device
 0004h	VDMAD		N  N	Virtual Direct Memory Access (DMA) Device
 0005h	VTD		Y  Y	Virtual Timer Device
 0006h	V86MMGR	    Y	N  N	Virtual 8086 Mode Device
 0007h	PageSwap	N  N	Paging Device
 0008h	Parity		N  N	Parity-check trapper
 0009h	Reboot		N  Y	Ctrl-Alt-Del handler
 000Ah	VDD		N  Y	Virtual Display Device (GRABBER)
 000Bh	VSD		N  N	Virtual Sound Device
 000Ch	VMD	    Y	Y  Y	Virtual Mouse Device
 000Dh	VKD		N  Y	Virtual Keyboard Device
 000Eh	VCD		N  Y	Virtual COMM Device
 000Fh	VPD			Virtual Printer Device
 0010h	VHD			Virtual Hard Disk Device (Windows 3.0)
 0010h	BLOCKDEV	N  N	Virtual Hard Disk Device (Windows 3.1)
 0010h	IOS	    N	N  N	DOS386 IOS Device (Windows for Workgroups 3.11)
 0010h	IOS		N  Y	(Chicago)
 0011h	VMCPD		Y  Y	Virtual Math CoProcessor Device
 0012h	EBIOS		N  N	Reserve EBIOS page (e.g., on PS/2)
 0013h	BIOSXLAT	N  N	Map ROM BIOS API between prot & V86 mode
 0014h	VNETBIOS    Y	N  N	Virtual NetBIOS Device
 0015h	DOSMGR	    Y	Y  N	DOS data instancing (see #1422)
 0016h	WINLOAD
 0017h	SHELL		N  Y
 0018h	VMPOLL		N  N
 0019h	VPROD
 001Ah	DOSNET		N  N	assures network integrity across VMs
 001Ah	VNETWARE	Y  Y	Novell NetWare DOSNET replacement
 001Bh	VFD		N  N	Virtual Floppy Device
 001Ch	VDD2			Secondary display adapter
 001Ch	LoadHi		N  N	Netroom LoadHi Device (RMLODHI.VXD)
 001Ch	LoadHi		N  N	386MAX LoadHi Device (386MAX.VXD)
 001Ch	LoadHi		N  N	Win386 LoadHi Device (EMM386.EXE)
 001Dh	WINDEBUG	N  Y
 001Dh	TDDebug		N  Y
 001Eh	TSRLoad			TSR instance utility
 001Fh	BiosHook		BIOS interrupt hooker VxD
 0020h	Int13	    N	N  N
 0021h	PageFile	N  Y	Paging File device
 0022h	SCSI
 0023h	MCA_POS
 0024h	SCSIFD			SCSI FastDisk device
 0025h	VPEND			Pen device
 0026h	APM			Advanced Power Management
 0027h	VXDLDR	     N	Y  Y	VXDLDR (Windows for Workgroups 3.11)
 0028h	NDIS	     N	Y  Y	Network Driver Interface Specification
				  (Windows for Workgroups 3.11)
 002Ah	VWIN32		N  Y	(Chicago)
 002Bh	VCOMM	     N	Y  Y	DOS386 VCOMM Device (Windows for Workgrps 3.11)
 002Dh	W32S	     Y	N  Y	WIN32s
 0030h	MACH32	     N	N  Y	ATI Mach32 video card
 0031h	NETBEUI	     N	N  N	NETBEUI (Windows for Workgroups 3.11)
 0032h	SERVER	     N	Y  Y	Int21 File Server (Windows for Workgroups 3.11)
 0033h	CONFIGMG	Y  Y	(Chicago)
 0033h	EDOS		N  N	Windows DOS Box Enhancer by Mom's Software
 0034h	DWCFGMG.SYS		Plug-and-Play configuration manager
 0036h	VFBACKUP	Y  Y	(Chicago)
 0038h	VCOND		Y  Y	(Chicago)
 003Ah	VPMTD	     N	N  Y	IFAX Scheduler Device (Windows for Workgr 3.11)
 003Bh	DSVXD		Y  N	DoubleSpace VxD from MS-DOS v6.x
 0051h	ISAPNP		N  N
 008Dh	ESDI_506	N  N	(Chicago)
 0090h	voltrack	N  N
 00FDh	FAKEIDE		N  N	(Chicago)
 0102h	CV1		N  N	Microsoft C/C++ 7.00+ CodeView for Windows
 0200h	VIPX		Y  Y	NetWare Virtual IPX Driver
 0201h	VNWLSERV	N  N	NetWare Lite 1.1 Server (SERVER.EXE)
 0202h	WINICE		Y  Y	SoftICE/W
 0203h	VCLIENT		N  Y	NetWare Lite 1.1+ Client
 0205h	VCAFT		N  N	Novell Virtual CAFT Driver (LANalyzer for Win)
 0205h	BCW		Y  Y	Nu-Mega Bounds Checker for Windows
 0206h	VTXRX		N  N	Novell Virtual TXRX Driver (LANalyzer for Win)
 0234h	VCOMMUTE	Y  Y	PC Tools Commute
 0442h	VTDAPI		N  Y	MMSys Win386 VTAPI Device
 0444h	VADMAD			Autoinitialize DMA (Windows 3.0)
 0445h	VSBD		Y  Y	WinResKit: Sound Blaster Device
 0446h	VADLIBD	     Y	Y  Y	MMSys Win386 AdLib Device (v3.x)
 045Dh	VflatD		N  Y	dva.386, part of WIN32s
 0460h	UNIMODEM	N  Y
 0480h	VNetSup	     N	Y  Y	Virtual Net Support (Windows for Workgrps 3.11)
 0481h	VRedir	     N	N  N	Redirector File System Driver
				  (Windows for Workgroups 3.11)
 0482h	VBrowse		Y  Y	Win386 Virtual Browser
 0483h	VSHARE		N  N	Windows for Workgroups Virtual SHARE
 0484h	IFSMgr	     Y	Y  N	Installable File System Manager
				  (Windows for Workgroups 3.11)
 0486h	VFAT	     N	Y  Y	Win386 HPFS Driver (Windows for Workgrps 3.11)
 0487h	NWLINK		Y  Y	Win386 Virtual Packet Exchange Protocol
 0487h	NWSUP	     Y	N  N	NetWare Vnetbios shim
 048Bh	VCache	     N	Y  Y	Virtual File Cache (Windows for Workgrps 3.11)
 048Bh	VCACHE		Y  Y
 048Dh	RASMAC		Y  Y	enhanced mode Win4Workgroups RASMAC device
 1021h	VMB		Y  Y	Microsoft C/C++ 7.00 WXSRVR
 1022h	Vpfd		Y  Y	Microsoft C/C++ 7.00
 1025h	MMD		Y  Y	Microsoft C/C++ 8.00, Visual C/C++ 1.00
 2020h	PIPE		Y  Y	by Thomas W. Olson, in Windows/DOS DevJrn 5/92
 21EAh	VADLIBWD	N  Y	Adlib Waveform Driver by John Ridges
 2200h	VFINTD		Y  Y	Norton VFINTD (Norton Desktop)
 22C0h	???	    Y		Rational Systems DOS/4GW ??? 
 2402h	ZMAX		N  N	Qualitas 386MAX v7 DOSMAX handler
 24A0h	VNSS		N  Y	Norton Screen Saver (Norton Desktop)
 24A1h	VNDWD		Y  Y	Norton VNDWD Device (Norton Desktop)
 24A2h	SYMEvent	Y  Y	Norton Utilities v8
 2540h	VILD		Y  N	INTERLNK client from MS-DOS v6.x
 2640h	VASBID		N  Y	WinResKit: Artisoft Sounding Board Device
 2860h	COMMTASK    N	N  Y	Windows 386-mode preemptive tasker by James
				  A. Kenemuth of Interabang Computing
 28A1h	PharLap	    Y	Y  Y	PharLap 386|DOS-Extender DOSXNT.386
 28C0h	VXD	    N	Y  Y	Generic VxD for real and protected mode by
				  Andrew Schulman in MSJ February 1993
 2925h	EDOS		Y  Y	Enhanced DOS by Firefly Software
 292Dh	VSBPD		Y  Y	Sound Blaster Pro
 3098h	VstlthD	    N	N  N	for QEMM Stealth ROM mode
 310Eh	WPS		N  Y	MS DevNet CD-ROM: Windows Process Status
 32CBh	VFRAD		Y  Y	Dr.Franz - Simulatan's diagnotics VFRAD.386
 4321h	POSTMSG		Y  Y	(see #1436)
 7A5Fh	SIWVID	    Y	Y  Y	Soft-ICE for Windows video driver
 7FE0h	VSWITCHD	Y  N	by Jeff Prosise
 7FE0h	VWFD	    N	Y  Y	reports windowed/fullscreen state
				  by Neil Sandlin of Microsoft
 7FE1h	VWATCHD	    N	Y  Y	basic driver w/ no functionality except tracing
				  by Keith Jin of Microsoft PSS
 7FE5h	VFINTD	    N	Y  Y	Virtual Floppy Interrupt trapper by Neil
				  Sandlin of Microsoft
 7FE7h	VMPAGES	    N	Y  Y	demonstration of exporting VxD services, by
				  Neil Sandlin of Microsoft
 7FE8h	VPOSTD		Y  Y	PostMessage() demo by Curtis J. Palmer of MS
 7FE9h	VIdleD	    N	N  N	demonstration of Call_When_Idle function, by
				  Bernie McIlroy of Microsoft
 7FEBh	VMIOD	    N	N  N	Virtual Monitor I/O Traffic Device, by Neil
				  Sandlin of Microsoft
 7FEDh	VMIRQD	    N	N  N	Virtual Monitor IRQ Traffic Device, by Neil
				  Sandlin of Microsoft
 8888h	VbillD			Bill Potvin II's for reversing Compaq LTE video
 EEEEh	VEPSD		N  N	Virtual Extended Paging Services for
				  Borland C++ v4.0
Note:	The high bit of the VxD ID is reserved for future use. The
	next 10 bits are the OEM number which is assigned by Microsoft. The
	low 5 bits are the device number.  Naturally, this scheme has not
	been adhered to since there are now more than 32 different VxDs.
--------W-2F1684BX0005-----------------------
INT 2F - MS Windows - VTD - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0005h (virtual device ID for VTD device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1420)
		  0000h:0000h if the VxD does not support an API

(Table 1420)
Call VTD.386 entry point with:
	AX = 0000h get VTD version number
	    Return: AH = major version
		    AL = minor version
	AX = 0100h get current clock tick time
		 Return: EDX:EAX = clock tick time in 840ns units since Windows was
				started
	AX = 0101h get current system time in milliseconds
	    Return: EAX = time in milliseconds that Windows has been running
	AX = 0102h get current virtual machine time
	    Return: EAX = cumulative amount of time the virtual machine has
			been active, in milliseconds
Note:	this entry point should only be called directly when TOOLHELP.DLL
	  TimerCount() cannot be called
--------W-2F1684BX0009-----------------------
INT 2F - MS Windows - REBOOT - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0009h (virtual device ID for REBOOT device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1421)
		  0000h:0000h if the VxD does not support an API

(Table 1421)
Call REBOOT protected-mode entry point with:
	AX = function
	    0100h warm boot
		Return: never
		Note:	broadcasts "Reboot_Processor" message, which is caught
			  by the VKD device
	    0201h set KERNEL Ctrl-Alt-Del handler
		ES:DI -> new Ctrl-Alt-Del handler
		DS:SI -> KERNEL reboot sanity check byte
		Return: CF clear
		Notes:	if an application installs its own handler and then
			  chains to Windows' handler, Windows will no longer
			  be able to detect hung applications, and will always
			  produce an "Application not responding" dialog
			DS must contain a writable, fixed selector because
			  the provided address is converted to a linear address
			  before being stored
			when Ctrl-Alt-Del is pressed in the system VM, Reboot
			  sets the sanity check byte to zero, schedules a
			  750ms wait, and then tests whether the check byte is
			  still zero; if not, it displays a message that there
			  is no hung application and then exits
	    0202h get KERNEL Ctrl-Alt-Del handler
		Return: CF clear
			ES:DI -> current Ctrl-Alt-Del handler
		Note:	the default handler is located in KERNEL
	    0203h display "Application not responding" dialog box
		ES:DI -> ASCIZ name of hung application
		Return: never if user pressed Ctrl-Alt-Del a second time
			CF clear
			AX = result
			    0000h user pressed Esc
			    0001h user pressed Enter
		Note:	this function is used by the default Windows
			  Ctrl-Alt-Del handler
	    0204h set/reset protected-mode INT 01 handler
		CX:EDX -> new protected-mode INT 01 handler
		CX = 0000h restore protected-mode INT 01 handler
		Return: CF clear
		Notes:	if CX is nonzero, the current handler address is saved
			  internally before the new handler is set; this saved
			  address is then used when CX is zero on entry
			used by Windows' default Ctrl-Alt-Del handler; actual
			  fatal exit to DOS will be done on next INT 01
		Warning: opened files are not closed and remain open as
			  orphaned files in DOS
Note:	functions 0201h and 0203h are not useful outside the system VM
--------W-2F1684BX0015-----------------------
INT 2F - MS Windows - DOSMGR - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0015h (virtual device ID for DOSMGR device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1422)
		  0000h:0000h if the VxD does not support an API

(Table 1422)
Call DOSMGR entry point with:
	AX = 0000h get DOSMGR version
	    Return: CF clear
		    AX = version (AH = major, AL = minor)
	AX = 0001h set critical focus
	    Return: CF clear
	AX = 0002h crash current virtual machine
	    Return: never
	    Note:   displays message box stating that "application has been
		      stopped by the DOSMGR device"
	AX = 0003h enter critical section
	    Note:   this function assumes that the code for INT 2A/AX=8001h
		      and INT 2A/AX=8002h have been modified for Windows
	AX = 0004h get VM ID byte
	    Return: CF clear if successful
			ES:DI -> VM ID byte
		    CF set on error
	    Note:   this function fails if the INT 2A modifications have not
				yet been applied
	AX = 0005h inform Windows of possible media change
	    BL = drive number (00h=A:)
	    Return: CF clear if successful
		    CF set on error
--------W-2F1684BX0017-----------------------
INT 2F U - MS Windows - SHELL - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0017h (virtual device ID for SHELL device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1423)
		  0000h:0000h if the VxD does not support an API
SeeAlso: AX=1684h/BX=0021h

(Table 1423)
Call SHELL entry point with:
	EDX = function number (0000h-0016h, mostly unknown)
	    0000h get version number
		Return: AX = version number
			EBX = system VM handle
	    0001h "SHELL_Get_SYSVM_Info" get system VM information
		Return: CF clear
			AX bit 0 set if system VM executing exclusively
			BX = background time slice priority
			CX = foreground time slice priority
			SI = minimum time slice in milliseconds
	    0002h "SHELL_Set_SYSVM_Info" set system VM information
		AX bit 0 set if system VM should execute exclusively (ignored?)
		BX = background time slice priority (1-10000)
		CX = foreground time slice priority (1-10000)
		SI = minimum time slice in milliseconds (1-10000)
		Return: CF clear if successful
	    0003h "SHELL_Crt_VM" create a virtual machine
		ES:EDI -> SEB structure (see #1424)
		Return: CF clear if successful
			   EAX = VM handle
			CF set on error
			   EDX,EAX = result from GetSetDetailedVMError()
	    0004h "SHELL_Destroy_VM" destroy a virtual machine
		EBX = VM handle (not system VM)
		Return: nothing
	    0005h "SHELL_Set_Focus"
		EBX = VM handle
		ECX = ???
		Return: nothing
	    0006h "SHELL_Get_VM_State"
		EBX = VM handle (not system VM)
		ES:EDI -> ??? structure
		Return: CF clear if successful
	    0007h "SHELL_Set_VM_State"
		EBX = VM handle (not system VM)
		ES:EDI -> ??? structure
	    0008h "SHELL_Debug_Out"
		???
		Return: ???
		Note:	dummy function in retail version of MS Windows
	    0009h "SHELL_VMDA_Init"
		???
		Return: ???
	    000Ah "SHELL_VMDA_Exit"
		???
		Return: ???
	    000Bh "SHELL_Get_Message_Txt"
		???
		Return: ???
	    000Ch "SHELL_Event_Complete"
		???
		Return: ???
	    000Dh "SHELL_Get_Contention_Info"
		???
		Return: ???
	    000Eh "SHELL_Get_Clip_Info"
		???
		Return: ???
	    000Fh "SHELL_Set_Paste"
		???
		Return: ???
	    0010h "SHELL_Switcher_Assist"
		???
		Return: ???
	    0011h "SHELL_Get_FileSysChng"
		???
		Return: ???
	    0012h "SHELL_Query_Destroy"
		???
		Return: ???
	    0013h "SHELL_SetFocus_Cur_VM" set input focus to current VM
		???
		Return: ???
	    0014h "SHELL_User_Busy_API"
		???
		Return: ???
		 0015h "SHELL_Chng_Hot_Key"
		???
		Return: ???
	    0016h "SHELL_Get_TermInfo"
		???
		Return: ???
Return: CF set if called from VM other than system VM
	    EAX = FFFFFFFFh
Note:	except for function 0013h, this API may only be called from the system
	  VM

Format of Shell Execution Block (SEB):
Offset	Size	Description	(Table 1424)
 00h	DWORD	PIF flags (see #1425)
 04h	DWORD	display flags (see #1426)
 08h	PWORD	-> pathname of .EXE to run
 0Eh	PWORD	-> argument list
 14h	PWORD	-> working drive/directory
 1Ah	WORD	desired number of V86 pages for virtual machine
 1Ch	WORD	minimum number of V86 pages for VM
 1Eh	WORD	foreground priority
 20h	WORD	background priority
 22h	WORD	maximum KB of EMS
 24h	WORD	minimum KB of EMS
 26h	WORD	maximum KB of XMS
 28h	WORD	minimum KB of XMS
 2Ah	WORD	???
 2Ch	WORD	???
 2Eh 128 BYTEs	title
Note:	the PWORDs at offsets 08h,0Eh, and 14h consist of a DWORD offset
	  followed by a WORD selector

Bitfields for 386 Enhanced Mode PIF flags:
Bit(s)	Description	(Table 1425)
 0	exclusive use of processor when VM is fullscreen
 1	VM runs in background
 2	VM runs in window
 3-4	???
 5	Alt-Tab reserved
 6	Alt-Esc reserved
 7	Alt-Space reserved
 8	Alt-Enter reserved
 9	Alt-PrtSc reserved
 10	PrtSc reserved
 11	Ctrl-Esc reserved
 12	VM will release idle time slice
 13	VM not allowed to use high mem
 14	unknown
 15	VM expanded mem not pageable
 16	VM extended mem not pageable
 17	Fast paste from clipboard enabled
 18	VM app memory not pageable
 30	Close VM when app exits

Bitfields for SHELL display options:
Bit(s)	Description	(Table 1426)
 0	emulate text mode
 1	monitor text port
 2	monitor low graphics port
 3	monitor high graphics port
 7	Retain video memory
--------W-2F1684BX0021-----------------------
INT 2F U - MS Windows - PAGEFILE - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0021h (virtual device ID for PAGEFILE device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1427)
		  0000h:0000h if the VxD does not support an API
SeeAlso: AX=1684h/BX=0017h

(Table 1427)
Call PAGEFILE entry point with:
	AX = function
	    0000h get version
		Return: CF clear
			AX = version (AH = major, AL = minor)
	    0001h get swap file info
		DS:SI -> 128-byte buffer for swap file full pathname
		DS:DI -> 128-byte buffer for SPART.PAR full pathname
		Return: CF clear
			AL = pager type (see #1428)
			AH = flags
			    bit 7: swap file corrupted
			ECX = maximum size of swap file
			DS:SI buffer filled if paging enabled
			DS:DI buffer filled if permanent swap file
	    0002h delete permanent swap file on exit
		Return: CF clear
	    0003h get current temporary swap file size
		Return: CF clear
			DX:AX = current swap file size in bytes
				0000h:0000h if permanent swap file
Note:	this API is only available in protected mode, and may only be called
	  from the system VM

(Table 1428)
Values for MS Windows PAGEFILE pager type:
 00h	paging disabled
 01h	MSDOS
 02h	BIOS
 03h	32-bit disk access
SeeAlso: #1427
--------W-2F1684BX0034-----------------------
INT 2F U - Intel Plug-and-Play - CONFIGURATION MANAGER - GET ENTRY POINT
	AX = 1684h
	BX = 0034h (ID for Configuration Manager) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> API entry point (see #1429)
		  0000h:0000h if Configuration Manager not loaded
Index:	installation check;Plug-and-Play Configuration Manager

(Table 1429)
Call Configuration Manager entry point with:
	AX = function
	    0000h "CM_GetVersion" get supported DDI version
		Return: AH = major version (01h)
			AL = minor version (00h)
			BX = number of devices identified by configuration
		Note:	returns AX = 0000h if no config manager installed
	    0001h "CM_GetConfig" get device configuration
		BX = device index
		ES:DI -> buffer for configuration information (see #1430)
		Return: AX = status
			    0000h successful
				ES:DI buffer filled
			    other error code (0001h = index out of range)
	    0002h "CM_LockConfig" lock device configuration
		ES:DI -> configuration information
		Return: AX = status
			    0000h successful
				ES:DI buffer filled with assigned config
			    0001h resources conflict
			    0002h invalid request or configuration info
	    0003h "CM_UnlockConfig" unlock device configuration
		ES:DI -> configuration information
		Return: AX = status
			    0000h successful
				ES:DI buffer filled with assigned config
				 0001h invalid request or configuration info

Format of Configuration Information Structure:
Offset	Size	Description	(Table 1430)
 00h	DWORD	bus ID
 04h	DWORD	device ID
 08h	DWORD	serial number
 0Ch	DWORD	logical ID
 10h	DWORD	flags
---ISA bus---
 14h	BYTE	Card Select Number
 15h	BYTE	logical device number
 16h	WORD	Read Data port
------
 18h	WORD	number of memory windows
 1Ah  9 DWORDs	physical base addresses of memory windows
 3Eh  9 DWORDs	length of memory windows
 62h  9 WORDs	memory window attributes
 74h	WORD	number of I/O ports
 76h 20 WORDs	I/O port base addresses
 B6h 20 WORDs	lengths of I/O port ranges
 F6h	WORD	number of IRQs
 F8h  7 BYTEs	IRQ registers
 FFh  7 BYTEs	IRQ attributes
106h	WORD	number of DMA channels
108h  7 BYTEs	DMA channels used
10Fh  7 WORDs	DMA channel attributes
11Dh  3 BYTEs	reserved
SeeAlso: #1429
--------W-2F1684BX0444-----------------------
INT 2F - MS Windows - VADMAD - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0444h (virtual device ID for VADMAD device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1431)
		  0000h:0000h if the VxD does not support an API

(Table 1431)
Call VADMAD entry point with:
	DX = operation
	    0000h set VADMAD mode
		AX = desired mode
	    0001h set VADMAD channel
		AX = desired channel
Note:	after setting mode/channel, start the DMA operation with an OUT to
	  I/O port 0Bh (channels 0-3) or D6h (channels 4-7)
--------W-2F1684BX0750-----------------------
INT 2F - MS Windows - VSWITCHD - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 0750h (virtual device ID for VSWITCHD device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1432)
		  0000h:0000h if the VxD does not support an API

(Table 1432)
Call VSWITCHD entry point with:
	AX = function
	    0000h toggle windowed mode (simulate Alt-Enter keypress)
		Return: nothing
	    0001h get windowed mode
		Return: CF clear if VM is windowed
			CF set if VM is full-screen
--------W-2F1684BX2925-----------------------
INT 2F - MS Windows - EDOS - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 2925h (virtual device ID for EDOS device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1433)
		  0000h:0000h if the VxD does not support an API

(Table 1433)
Call EDOS entry point with:
	AX = 0000h get EDOS version number
	    Return: AH = major version
		    AL = minor version
	AX = 0001h display message
	    CX = 0
	    DX:BX -> ASCIZ Message
	AX = 0002h get EDOS error coded
	    Return: EAX = time in milliseconds that Windows has been running
	AX = 0003h execute windows program
	    Return: EAX = cumulative amount of time the virtual machine has
			been active, in milliseconds
	AX = 0008h get/set priority
	    BX = 0000h??? foreground
		 0001h background
	    DI = 0000h get
		 0001h set
	    DX = priority setting
	    Return: CX = foreground priority
		    DX = background priority
		    BX:AX = flags
			00000001h exclusive ON
			00000010h background ON
		    SI = CPU percentage
--------W-2F1684BX310E-----------------------
INT 2F - MS Windows - WPS - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 310Eh (virtual device ID for WPS device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1434)
		  0000h:0000h if the VxD does not support an API

(Table 1434)
Call WPS protected-mode entry point with:
	DX = function
	    0000h get WPS.386 version
		Return: CF clear
			AX = version (AH = major, AL = minor)
	    0001h get number of installed VxDs
		Return: CF clear
			AX = number of installed VxDs
	    0002h get VxD characteristics
		AX = number of VxD
		ES:BX -> buffer for VxD characteristics structure (see #1435)
		Return: CF clear
			ES:BX buffer filled

Format of WPS.386 VxD characteristics structure:
Offset	Size	Description	(Table 1435)
 00h	WORD	VxD ID number
 02h	BYTE	VxD minor version
 03h	BYTE	VxD major version
 04h	BYTE	DDK minor version
 05h	BYTE	DDK major version
 06h	WORD	flags
		bit 0: V86 API supported
		bit 1: PM API supported
		bit 2: services supported
 08h	DWORD	start order
 0Ch  9 BYTEs	ASCIZ VxD name
--------W-2F1684BX8888-----------------------
INT 2F - MS Windows - POSTMSG - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 8888h (virtual device ID for POSTMSG device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1436,#1438)
		  0000h:0000h if the VxD does not support an API

(Table 1436)
Call POSTMSG protected-mode entry point with:
	AX = window handle
	CX:BX -> callback procedure (see #1437)
Return: nothing
Note:	this call registers a WinApp with the VxD; the callback must be in a
	  fixed, non-discardable code segment
SeeAlso: #1438

(Table 1437)
Values POSTMSG callback routine is called with:
	STACK:	DWORD	"lParam" parameter from DOSApp
		WORD	"wParam" parameter from DOSApp
		WORD	Windows message number (WM_USER + 100)
		DWORD	registered hwnd

(Table 1438)
Call POSTMSG V86-mode entry point with:
	BX = wParam value to pass to protected-mode callback
	DX:AX = lParam value to pass to protected-mode callback
Return: CF clear if successful
	CF set on error (no WinApp registered)
SeeAlso: #1436
--------W-2F1684BX8888-----------------------
INT 2F - MS Windows - VbillD - GET DEVICE API ENTRY POINT
	AX = 1684h
	BX = 8888h (virtual device ID for VbillD device) (see #1419)
	ES:DI = 0000h:0000h
Return: ES:DI -> VxD API entry point (see #1439)
		  0000h:0000h if the VxD does not support an API

(Table 1439)
Call VbillD entry point with:
	AX = function
	    0001h set reverse video
	    0002h set normal video
Return: ???
--------W-2F1685-----------------------------
INT 2F - MS Windows - SWITCH VMs AND CALLBACK
	AX = 1685h
	BX = VM ID of virtual machine to switch to
	CX = flags (see #1440)
	DX:SI = priority boost (see VMM.INC)
	ES:DI -> FAR procedure to callback
Return: CF set on error
		 AX = error code
		01h invalid VM ID
		02h invalid priority boost
		03h invalid flags
	CF clear if successful
	    event will be or has been called
Notes:	some DOS devices, such as networks, need to call functions in a
	  specific VM. This call forces the appropriate VM to be installed.
	the callback procedure must preserve all registers and return with IRET
SeeAlso: AX=1683h,INT 15/AX=1117h,AX=DB06h"WINGO"

Bitfields for VM switching flags:
Bit(s)	Description	(Table 1440)
 0	wait until interrupts enabled
 1	wait until critical section unowned
 2-15	reserved (zero)
--------E-2F1686-----------------------------
INT 2F - DOS Protected-Mode Interface - DETECT MODE
	AX = 1686h
Return: AX = 0000h if operating in protected mode under DPMI (INT 31 available)
	AX nonzero if in real/V86 mode or no DPMI (INT 31 not available)
SeeAlso: AX=1687h
--------E-2F1687-----------------------------
INT 2F - DOS Protected-Mode Interface - INSTALLATION CHECK
	AX = 1687h
Return: AX = 0000h if installed
	    BX = flags
		bit 0: 32-bit programs supported
	    CL = processor type (02h=80286, 03h=80386, 04h=80486)
	    DH = DPMI major version
	    DL = two-digit DPMI minor version (binary)
	    SI = number of paragraphs of DOS extender private data
	    ES:DI -> DPMI mode-switch entry point (see #1441)
	AX nonzero if not installed
SeeAlso: AX=1686h,AX=43E0h,AX=DE01h/BX=4450h,AX=FB42h/BX=0001h
SeeAlso: INT 31/AX=0400h,INT 31/AX=5702h,INT 38/AH=10h

(Table 1441)
Call DPMI mode switch entry point with:
	AX = flags
	    bit 0: set if 32-bit program
	ES = real mode segment of buffer for DPMI private data (ignored if
		SI was zero)
Return: CF set on error
	    program still in real mode
	    AX = error code (DPMI 1.0+)
			 8011h unable to allocate all necessary descriptors
	       8021h 32-bit program specified, but 16-bit DPMI host
	CF clear if successful
	    CS = 16-bit selector corresponding to real-mode CS
	    SS = selector corresponding to real-mode SS (64K limit)
	    DS = selector corresponding to real-mode DS (64K limit)
	    ES = selector to program's PSP (100h byte limit)
	    FS = GS = 0
	    high word of ESP = 0 if 32-bit program
	    program now in protected mode
Note:	this entry point is only called for the initial switch to protected
	  mode
--------W-2F1688BX0BAD-----------------------
INT 2F U - MS Windows 3.0, 386MAX v6.01 - GET ALIAS SELECTOR TO LDT
	AX = 1688h
	BX = 0BADh
Return: AX = 0000h if supported
	    BX = alias selector for LDT
Note:	use the LSL instruction or GetSelectorLimit() to find LDT size
	this call should be considered obsolete for Windows 3.1+, as the
	  alias selector can be retrieved via the API entry point for
	  "MS-DOS" retrieved from INT 2F/AX=168Ah (see #1443)
--------W-2F1689-----------------------------
INT 2F U - MS Windows 3.0+ - KERNEL IDLE CALL
	AX = 1689h
	???
Return: ???
SeeAlso: AX=1680h,INT 15/AX=1000h,INT 28
--------E-2F168A-----------------------------
INT 2F - DPMI 0.9+ - GET VENDOR-SPECIFIC API ENTRY POINT
	AX = 168Ah
	DS:(E)SI = selector:offset of ASCIZ vendor name (see #1442)
Return: AL = status
	    00h successful
	       ES:(E)DI -> extended API entry point
	    8Ah unsuccessful
Notes:	the vendor name is used to determine which entry point to return; it is
	  case-sensitive
	available in protected mode only
	32-bit applications use ESI and EDI, 16-bit applications use SI and DI
	this call is present but not documented for DPMI 0.9
	the Borland C++ 3.1 DPMILOAD does not handle requests for entry points
	  other than the MS-DOS one gracefully, producing an unhandled
	  exception report; this has been fixed in the Borland Pascal 7 version
SeeAlso: INT 31/AX=0A00h,INT 31/AH=57h

(Table 1442)
Values for DPMI vendor-specific API names:
 "MS-DOS"	MS Windows and 386MAX v6.00+ (see #1443)
 "386MAX"	386MAX v6.00+
 "HELIX_DPMI"	Helix Netroom's DPMI server
 "Phar Lap"	Phar Lap 286|DOS-Extender RUN286 (see #1444)

(Table 1443)
Call Windows-support ("MS-DOS") entry point with:
	AX = 0100h get LDT alias selector
Return: CF clear if successful
	    AX = alias selector
	CF set on error

(Table 1444)
Call Phar Lap RUN286 entry point with:
	AX = 0000h (function "load MSW")
	BX = new value for MSW register (low word of CR0)
Return: ???
--------W-2F168B-----------------------------
INT 2F - MS Windows 3.1 - SET FOCUS TO SPECIFIED VIRTUAL MACHINE
	AX = 168Bh
	BX = virtual machine ID (see AX=1683h), 0000h for current DOS box
Return: AL = 00h if focus set to specified VM
Notes:	documented on the Microsoft Developer's Network CD-ROM
	if the VM is a windowed DOS box, it will be set to full screen
SeeAlso: AX=1683h
--------W-2F168C-----------------------------
INT 2F - MS Windows 3.1 - RESTART COMMAND
	AX = 168Ch
	???
Return: ???
Note:	WIN.COM executes specified application
--------W-2F1700-----------------------------
INT 2F - MS Windows "WINOLDAP" - IDENTIFY WinOldAp VERSION
	AX = 1700h
Return: AX = 1700h if this version of WINOLDAP doesn't support clipboard
	AX <> 1700h
	    AL = WINOLDAP major version
	    AH = WINOLDAP minor version
Program: WinOldAp (WINOLDAP.MOD) is a Microsoft Windows extension supporting
	  "old" (character-mode) application access to Dynamic Data Exchange,
	  menus, and the Windows clipboard.
Note:	this installation check DOES NOT follow the format used by other
	  software of returning AL=FFh
SeeAlso: AX=1701h,AX=4601h
Index:	installation check;WINOLDAP
--------W-2F1701-----------------------------
INT 2F - MS Windows "WINOLDAP" - OPEN CLIPBOARD
	AX = 1701h
Return: AX = status
	    nonzero success
	    0000h   clipboard is already open
SeeAlso: AX=1700h,AX=1702h,AX=1703h,AX=1704h
--------W-2F1702-----------------------------
INT 2F - MS Windows "WINOLDAP" - EMPTY CLIPBOARD
	AX = 1702h
Return: AX = status
	    nonzero clipboard has been emptied
	    0000h   failure
SeeAlso: AX=1700h,AX=1701h,AX=1703h,AX=1704h
--------W-2F1703-----------------------------
INT 2F - MS Windows "WINOLDAP" - SET CLIPBOARD DATA
	AX = 1703h
	DX = clipboard format supported by WinOldAp (see #1445)
	ES:BX -> data (see #1446,#1447)
	SI:CX = size of data
Return: AX = status
	    nonzero data copied into the Clipboard
		 0000h   failure

(Table 1445)
Values for WinOldAp clipboard format:
 01h	text
 02h	bitmap
 03h	metafile picture
 04h	SYLK
 05h	DIF
 06h	TIFF
 07h	OEM text
 08h	DIB bitmap
 80h	special format (used by Windows WRITE, maybe other Windows applets???)
 81h	DSP text
 82h	DSP bitmap

Format of Windows Clipboard bitmap:
Offset	Size	Description	(Table 1446)
 00h	WORD	type (0000h)
 02h	WORD	width of bitmap in pixels
 04h	WORD	height of bitmap in pixels
 06h	WORD	bytes per line
 08h	BYTE	number of color planes
 09h	BYTE	number of adjacent color bits in pixel
 0Ah	DWORD	pointer to start of data
 0Eh	WORD	width in 0.1mm units
 10h	WORD	height in 0.1mm units
 12h  N BYTEs	bitmap data

Format of Windows metafile picture:
Offset	Size	Description	(Table 1447)
 00h	WORD	mapping mode
 02h	WORD	X extent
 04h	WORD	Y extent
 06h	WORD	picture data
--------W-2F1704-----------------------------
INT 2F - MS Windows "WINOLDAP" - GET CLIPBOARD DATA SIZE
	AX = 1704h
	DX = clipboard format supported by WinOldAp (see #1445)
Return:	DX:AX = size of data in bytes, including any headers
		0000h:0000h if no data in this format in the Clipboard
Note:	Windows reportedly rounds up the size of the data to a multiple of 32
	  bytes
--------W-2F1705-----------------------------
INT 2F - MS Windows "WINOLDAP" - GET CLIPBOARD DATA
	AX = 1705h
	DX = clipboard format supported by WinOldAp (see #1445)
	ES:BX -> buffer
Return: AX = status
	    nonzero success
	    0000h   error, or no data in this format in Clipboard
--------W-2F1708-----------------------------
INT 2F - MS Windows "WINOLDAP" - CloseClipboard
	AX = 1708h
Return: AX = status
	    0000h failure
	    nonzero success
--------W-2F1709-----------------------------
INT 2F - MS Windows "WINOLDAP" - COMPACT CLIPBOARD
	AX = 1709h
	SI:CX = desired size in bytes
Return: DX:AX = number of bytes in largest block of free memory
Note:	WinOldAp is responsible for including the size of any headers
--------W-2F170A-----------------------------
INT 2F - MS Windows "WINOLDAP" - GET DEVICE CAPABILITIES
	AX = 170Ah
	DX = GDI information index (see #1448)
Return: AX = integer value of the desired item
	      (see #1449,#1450,#1451,#1452,#1453,#1454,#1455)
Note:	This function returns the device-capability bits for the given display

(Table 1448)
Values for GDI information index:
 00h	device driver version
 02h	device classification
 04h	width in mm
 06h	height in mm
 08h	width in pixels
 0Ah	height in pixels
 0Ch	bits per pixel
 0Eh	number of bit planes
 10h	number of brushes supported by device
 12h	number of pens supported by device
 14h	number of markers supported by device
 16h	number of fonts supported by device
 18h	number of colors
 1Ah	size required for device descriptor
 1Ch	curve capabilities
 1Eh	line capabilities
 20h	polygon capabilities
 22h	text capabilities
 24h	clipping capabilities
 26h	bitblt capabilities
 28h	X aspect
 2Ah	Y aspect
 2Ch	length of hypotenuse of aspect
 58h	logical pixels per inch of width
 5Ah	logical pixels per inch of height
SeeAlso: #1449,#1450,#1451,#1452,#1453,#1454,#1455

(Table 1449)
Values for device classification:
 00h	vector plotter
 01h	raster display
 02h	raster printer
 03h	raster camera
 04h	character-stream, PLP
 05h	Metafile, VDM
 06h	display-file
SeeAlso: #1448,#1450,#1451,#1452,#1453,#1454,#1455

Bitfields for curve capabilities:
Bit(s)	Description	(Table 1450)
 0	circles
 1	pie wedges
 2	chord arcs
 3	ellipses
 4	wide lines
 5	styled lines
 6	wide styled lines
 7	interiors
SeeAlso: #1448,#1449,#1451,#1452,#1453,#1454,#1455

Bitfields for line capabilities:
Bit(s)	Description	(Table 1451)
 1	polylines
 2	markers
 3	polymarkers
 4	wide lines
 5	styled lines
 6	wide styled lines
 7	interiors
SeeAlso: #1448,#1449,#1450,#1452,#1453,#1454,#1455

Bitfields for polygon capabilities:
Bit(s)	Description	(Table 1452)
 0	polygons
 1	rectangles
 2	trapezoids
 3	scanlines
 4	wide borders
 5	styled borders
 6	wide styled borders
 7	interiors
SeeAlso: #1448,#1449,#1450,#1451,#1453,#1454,#1455

Bitfields for text capabilities:
Bit(s)	Description	(Table 1453)
 0	output precision character
 1	output precision stroke
 2	clippping precision stroke
 3	90-degree character rotation
 4	arbitrary character rotation
 5	independent X and Y scaling
 6	double-size
 7	integer scaling
 8	continuous scaling
 9	bold
 10	italic
 11	underline
 12	strikeout
 13	raster fonts
 14	vector fonts
 15	reserved
SeeAlso: #1448,#1449,#1450,#1451,#1452,#1454,#1455

(Table 1454)
Values for clipping capabilities:
 00h	none
 01h	clipping to rectangles
SeeAlso: #1448,#1449,#1450,#1451,#1452,#1453,#1455

Bitfields for raster capabilities:
Bit(s)	Description	(Table 1455)
 0	simple bitBLT
 1	device requires banding support
 2	device requires scaling support
 3	supports >64K bitmap
SeeAlso: #1448,#1449,#1450,#1451,#1452,#1453,#1454
----------2F18-------------------------------
INT 2F U - MS-Manager
	AH = 18h
	???
Return: ???
--------l-2F1900-----------------------------
INT 2F U - DOS 4.x only SHELLB.COM - INSTALLATION CHECK
	AX = 1900h
Return: AL = status
	    00h not installed
	    FFh installed
--------l-2F1901-----------------------------
INT 2F U - DOS 4.x only SHELLB.COM - SHELLC.EXE INTERFACE
	AX = 1901h
	BL = SHELLC type
	    00h transient
	    01h resident
	DS:DX -> far call entry point for resident SHELLC.EXE
Return: ES:DI -> SHELLC.EXE workspace within SHELLB.COM
Note:	SHELLB.COM and SHELLC.EXE are parts of the DOS 4.x shell
--------l-2F1902-----------------------------
INT 2F U - DOS 4.x only SHELLB.COM - COMMAND.COM INTERFACE
	AX = 1902h
	ES:DI -> ASCIZ full filename of current batch file, with at least the
		  final filename element uppercased
	DS:DX -> buffer for results
Return: AL = 00h  failed, either
		(a) final filename element quoted at ES:DI does not match
				identity of shell batch file quoted as parameter of most
		      recent call of SHELLB command, or
		(b) no more Program Start Commands available.
	AL= FFh	 success, then:
		memory at DS:[DX+1] onwards filled as:
		DX+1:	BYTE	count of bytes of PSC
		DX+2: N BYTEs	Program Start Command text
			BYTE	0Dh terminator
Desc:	COMMAND.COM executes the result of this call in preference to
	  reading a command from a batch file.	Thus the batch file does not
	  advance in execution for so long as SHELLB provides PSCs from its
	  workspace.
Note:	The PSCs are planted in SHELLB workspace by SHELLC, the user
	  menu interface.  The final PSC of a sequence is finished with a
	  GOTO COMMON, which causes a loop back in the batch file which called
	  SHELLC so as to execute SHELLC again.	 The check on batch file name
	  permits PSCs to CALL nested batch files while PSCs are still stacked
	  up for subsequent execution.
--------l-2F1903-----------------------------
INT 2F U - DOS 4.x only SHELLB.COM - COMMAND.COM interface
	AX = 1903h
	ES:DI -> ASCIZ batch file name as for AX=1902h
Return: AL = status
		 FFh quoted batch file name matches last SHELLB parameter
	    00h it does not
--------l-2F1904-----------------------------
INT 2F U - DOS 4.x only SHELLB.COM - SHELLB transient to TSR intrface
	AX = 1904h
Return: ES:DI -> name of current shell batch file:
		WORD	number of bytes of name following
		BYTEs	(8 max) uppercase name of shell batch file
--------V-2F1A00-----------------------------
INT 2F - DOS 4+ ANSI.SYS - INSTALLATION CHECK
	AX = 1A00h
Return: AL = FFh if installed
Notes:	AVATAR.SYS also responds to this call
	documented for DOS 5+, but undocumented for DOS 4.x
--------V-2F1A00BX414E-----------------------
INT 2F - ANSIPLUS.SYS v2.00+ - INSTALLATION CHECK
	AX = 1A00h
	BX = 414Eh ('AN')
	CX = 5349h ('SI')
	DX = 2B2Bh ('++')
Return: AL = FFh if installed
	    CF clear
	    ES:BX -> INT 29 entry point
		 CX = ANSIPLUS BCD version number (v3.10+, CH=major, CL=minor)
	    DL = capabilities (v4.00+)
		00h full capability driver
		01h reduced capability driver
		2Bh full capability driver (before v4.00)
Program: ANSIPLUS.SYS is a CON device driver by Kristofer Sweger which
	  replaces the normal ANSI.SYS is a more powerful version with many
	  additional features
Notes:	ANSIPLUS also identifies itself as ANSI.SYS if BX,CX, or DX differ
	  from the magic values above
	an additional installation check is to test for the signature
	  "ANSIPLUS" 12 bytes before the INT 29 entry point; the version
	  number is also available as a four-character ASCII string (e.g.
	  "4.00") four bytes before the entry point
SeeAlso: AX=1AA5h,AX=1AA6h,AX=1AA7h,AX=1AA8h,AX=1AA9h,AX=1AAAh,AX=D44Fh
--------V-2F1A00BX4156-----------------------
INT 2F - AVATAR.SYS - INSTALLATION CHECK
	AX = 1A00h
	BX = 4156h ('AV')
	CX = 4154h ('AT')
	DX = 4152h ('AR')
Return: AL = FFh if installed
	    CF clear
		 BX = AVATAR protocol level supported
	    CX = driver type
		0000h AVATAR.SYS
		4456h DVAVATAR.COM inside DESQview window
	    DX = 0016h
Program: AVATAR.SYS is a CON replacement by George Adam Stanislav which
	  interprets AVATAR command codes in the same way that ANSI interprets
	  ANSI command codes
Notes:	AVATAR also identifies itself as ANSI.SYS if BX, CX, or DX differ from
	  the magic values
SeeAlso: AX=1A21h,AX=1A3Ch,AX=1A3Fh,AX=1A52h,AX=1A72h,AX=1A7Dh,AX=1AADh"AVATAR"
--------V-2F1A01-----------------------------
INT 2F U - DOS 4+ ANSI.SYS internal - GET/SET DISPLAY INFORMATION
	AX = 1A01h
	CL = function
	    7Fh for GET
	    5Fh for SET
	DS:DX -> parm block as for INT 21,AX=440Ch,CX=037Fh/035Fh respectively
Return:	CF clear if successful
	    AX destroyed
	CF set on error
	    AX = error code (many non-standard)
Note:	presumably this is the DOS IOCTL interface to ANSI.SYS
SeeAlso: AX=1A02h,INT 21/AX=440Ch
--------V-2F1A02-----------------------------
INT 2F U - DOS 4+ ANSI.SYS internal - MISCELLANEOUS REQUESTS
	AX = 1A02h
	DS:DX -> parameter block (see #1456)
Return: CF clear if successful
	CF set on error
	    AX = error code
Note:	DOS 5+ chains to previous handler if AL > 02h on call
SeeAlso: AX=1A01h

Format of ANSI.SYS parameter block:
Offset	Size	Description	(Table 1456)
 00h	BYTE	subfunction
		00h set/reset interlock
		01h get /L flag
 01h	BYTE	interlock state
		00h=reset, 01h=set
		  This interlock prevents some of the ANSI.SYS post-processing
		  in its hook onto INT 10, AH=00h mode set
 02h	BYTE	(returned)
		00h if /L not in effect
		01h if /L in effect
--------V-2F1A21-----------------------------
INT 2F - AVATAR.SYS - SET DRIVER STATE
	AX = 1A21h (AL='!')
	DS:SI -> command string with one or more state characters (see #1457)
	CX = length of command string
Return: CF set on error (invalid subfunction)
	CF clear if successful
Note:	the characters in the state string are interpreted left to right, and
	  need not be in any particular order
SeeAlso: AX=1A00h/BX=4156h,AX=1A3Fh

(Table 1457)
Values for AVATAR.SYS state characters:
 'a'	activate driver
 'd'	disable driver
 'f'	use fast screen output
 'g'	always convert gray keys (+ and -) to function keys
 'G'	never convert gray keys
 'l'	convert gray keys only when ScrollLock active
 's'	use slow screen output
 't'	Tandy 1000 keyboard (not yet implemented)
--------V-2F1A3C-----------------------------
INT 2F U - AVATAR.SYS v0.11 - ???
	AX = 1A3Ch
	???
Return: CX = 0000h
SeeAlso: AX=1A00h/BX=4156h,AX=1A21h,AX=1A3Eh
--------V-2F1A3E-----------------------------
INT 2F U - AVATAR.SYS v0.11 - ???
	AX = 1A3Eh
	CL = ???
	CH = ???
	DL = ???
	DH = ???
Return: CL = ???
	CH = ???
	DL = ???
	DH = ???
SeeAlso: AX=1A3Ch,AX=1A3Fh
--------V-2F1A3F-----------------------------
INT 2F - AVATAR.SYS - QUERY DRIVER STATE
	AX = 1A3Fh (AL='?')
	ES:DI -> buffer
	CX = length of buffer in bytes
Return: CF clear
	CX = actual size of returned info
Note:	the returned information consists of multiple letters whose meanings
	  are described under AX=1A21h
SeeAlso: AX=1A00h/BX=4156h,AX=1A21h,AX=1A44h
--------S-2F1A42BX4156-----------------------
INT 2F - AVATAR Serial Dispatcher - INSTALL IRQ3 HANDLER
	AX = 1A42h
	BX = 4156h ('AV')
	ES:DI -> FAR handler for serial port using IRQ3
	DS = data segment needed by handler
Return: AX = status/return value
	    0000h if no more room
	    1A42h if ASD not installed
	    else handle to use when uninstalling
Notes:	the handler need not save/restore registers or signal EOI to the
	  interrupt controller
	the handler should return AX=0000h if the interrupt was meant for it,
	  and either leave AX unchanged or return a non-zero value otherwise
	the most recently installed handler will be called first, continuing
	  to earlier handlers until one returns AX=0000h
SeeAlso: AX=1A43h,AX=1A62h
--------S-2F1A43BX4156-----------------------
INT 2F - AVATAR Serial Dispatcher - INSTALL IRQ4 HANDLER
	AX = 1A43h
	BX = 4156h ('AV')
	ES:DI -> FAR handler for serial port using IRQ4
	DS = data segment needed by handler
Return: AX = status/return value
	    0000h if no more room
	    1A43h if ASD not installed
	    else handle to use when uninstalling
Notes:	(see AX=1A42h)
SeeAlso: AX=1A42h,AX=1A63h
--------V-2F1A44BX4156-----------------------
INT 2F - AVATAR.SYS v0.11+ - GET DATA SEGMENT
	AX = 1A44h
	BX = 4156h ('AV')
Return: AX = 0000h
	DS = data segment
	CX = size of data segment
Note:	AVATAR.SYS calls this function whenever it is invoked.	If each
	  process under a multitasker hooks this function and provides a
	  separate data segment, AVATAR.SYS becomes fully reentrant.
SeeAlso: AX=1A21h,AX=1A3Fh,AX=1A52h
--------V-2F1A52-----------------------------
INT 2F U - AVATAR.SYS v0.11 - GET ???
	AX = 1A52h
	CX = size of buffer
	ES:DI -> buffer
Return: ??? copied into user buffer
Note:	the maximum size of the data which may be copied is returned by
	  AX=1A72h
SeeAlso: AX=1A53h,AX=1A72h
--------V-2F1A53-----------------------------
INT 2F U - AVATAR.SYS v0.11 - ???
	AX = 1A53h
	CL = ??? (00h-05h)
	???
Return: ???
SeeAlso: AX=1A00h/BX=4156h,AX=1A52h,AX=1A72h
--------S-2F1A62BX4156-----------------------
INT 2F - AVATAR Serial Dispatcher - UNINSTALL IRQ3 HANDLER
	AX = 1A62h
	BX = 4156h ('AV')
	CX = handle for IRQ routine returned by AX=1A42h
SeeAlso: AX=1A42h,AX=1A63h
--------S-2F1A63BX4156-----------------------
INT 2F - AVATAR Serial Dispatcher - UNINSTALL IRQ4 HANDLER
	AX = 1A63h
	BX = 4156h ('AV')
	CX = handle for IRQ routine returned by AX=1A43h
SeeAlso: AX=1A43h,AX=1A62h
--------V-2F1A72-----------------------------
INT 2F U - AVATAR.SYS v0.11 - GET ??? SIZE
	AX = 1A72h
Return: CX = maximum size of ???
SeeAlso: AX=1A00h/BX=4156h,AX=1A52h,AX=1A7Bh,AX=1AADh"AVATAR"
--------V-2F1A7B-----------------------------
INT 2F U - AVATAR.SYS v0.11 - ???
	AX = 1A7Bh
Return: AX = 0000h
	CX = 0000h
SeeAlso: AX=1A00h/BX=4156h,AX=1A72h,AX=1A7Dh
--------V-2F1A7D-----------------------------
INT 2F U - AVATAR.SYS v0.11 - ???
	AX = 1A7Dh
Return: AX = ???
SeeAlso: AX=1A00h/BX=4156h,AX=1A7Bh
--------V-2F1AA5-----------------------------
INT 2F - ANSIPLUS v4.00+ - GET/SET ANSIPLUS CLIPBOARD
	AX = 1AA5h
	DH = subfunction
	    00h get clipboard information
		 01h get clipboard text
	    02h set clipboard text
	    03h append text to clipboard
	    04h clear clipboard
	    05h paste clipboard to keyboard
	ES:BX -> data area for subfunctions 01h, 02h, and 03h
	CX = size of data area (maximum size for subfunction 01h, actual size
	    to add to clipboard for subfunctions 02h and 03h)
Return: AL = status
	    00h successful
	    01h unsupported subfunction (reduced capability driver)
	    02h insufficient space
	    A5h unsupported function (ANSIPLUS before v4.00)
	ES:BX -> ANSIPLUS local clipboard data
	CX = number of bytes currently in local clipboard
	DX = maximum size of local clipboard
SeeAlso: AX=1A00h/BX=414Eh,AX=1AA6h
--------V-2F1AA6-----------------------------
INT 2F - ANSIPLUS v4.00+ - ENABLE/DISABLE ANSIPLUS DRIVER
	AX = 1AA6h
	BH = function
	    00h get hooked interrupts
	    01h set hooked interrupts mask
		BL = new interrupts mask (see #1458)
Return: BL = previous interrupts mask (see #1458)
SeeAlso: AX=1A00h/BX=414Eh,AX=1AA7h

Desc:	used to temporarily disable any prior copies of ANSIPLUS when a new
	  copy is installed, such as in a multitasking system like DESQview
Note:	only the most-recently loaded copy of ANSIPLUS on the current INT 2F
	  chain responds to this call

Bitfields for ANSIPLUS hooked interrupts mask:
Bit(s)	Description	(Table 1458)
 0	INT 09 hook disabled
 1	INT 10 hook disabled
 2	INT 15 hook disabled
 3	INT 16 hook disabled
 4	INT 1C hook disabled
 5	reset all bits when INT 29 called
 6	INT 29 hook disabled
 7	INT 33, INT 74, or other mouse event hook disabled
--------V-2F1AA7-----------------------------
INT 2F - ANSIPLUS v4.00+ - ENABLE/DISABLE ANSIPLUS FEATURES
	AX = 1AA7h
	BL = function
		 00h prevent scroll-back saves
	    01h enable scroll-back saves
	    02h disable key reprogramming and lock changes by escape sequences
	    03h enable key reprogramming by escape sequences
	    04h	disable and lock key stacking changes by escape sequences
	    05h allow key stacking by escape sequences
Return: nothing
SeeAlso: AX=1AA6h
--------V-2F1AA8-----------------------------
INT 2F - ANSIPLUS v3.10+ - GET NEXT ANSIPLUS SCROLLBACK LINE
	AX = 1AA8h
Return: AL = status
	    00h successful
		ES:BX -> screen line (character and attribute pairs)
		CX = length of line in bytes, 0000h if no more lines or
		      unsupported video mode
	    01h unsupported video mode active
	    02h screen currently scrolled back
	    03h reduced capability driver
	    A8h unsupported function (driver before v3.10)
SeeAlso: AX=1A00h/BX=414Eh,AX=1AA9h
--------V-2F1AA9-----------------------------
INT 2F - ANSIPLUS v3.10+ - GET ANSIPLUS SCROLLBACK INFORMATION
	AX = 1AA9h
Return: AL = status
	    00h successful
		BX = current number of lines in scrollback buffer
		CX = number of bytes in one line
	    01h unsupported video mode active
	    02h screen currently scrolled back
	    03h reduced capability driver
	    A9h unsupported function (driver before v3.10)
Desc:	determine how much data is in the scrollback buffer and initialize
	  scrollback retrieval to return the first line on the next call to
	  AX=1AA8h
SeeAlso: AX=1A00h/BX=414Eh,AX=1AA8h
--------V-2F1AAA-----------------------------
INT 2F - ANSIPLUS v3.01+ - GET/SET ANSIPLUS SCREEN SAVER BLANKING TIME
	AX = 1AAAh
	BX = function
	    FFFFh to get current blanking time
	    other to set time
		CX = blanking time in clock ticks (0000h-7FFFh)
Return: BX = current blanking time
	CX = blanking time when last set
SeeAlso: AX=1A00h/BX=414Eh,AX=1AABh
--------V-2F1AAB-----------------------------
INT 2F - ANSIPLUS v3.01+ - SET ANSIPLUS KEY REPEAT RATE
	AX = 1AABh
	BX = repeat rate in characters per second
	    0000h use BIOS repeat rate
Return: nothing
SeeAlso: AX=1A00h/BX=414Eh,AX=1AAAh,AX=1AACh
--------V-2F1AAC-----------------------------
INT 2F - ANSIPLUS v3.00+ - LOAD CHARACTER GENERATOR
	AX = 1AACh
	BH = number of bytes per character pattern
	BL = VGA/EGA character table to be loaded
	CX = number of characters to load
	DX = starting character code (offset into Map2 block)
	ES:BP -> user character table to be loaded
Return: AX = 1100h
Desc:	load the EGA/VGA character generator without the BIOS function's
	  side effects of resetting the video mode and color palette
SeeAlso: AX=1A00h/BX=414Eh,AX=1AABh,AX=1AADh"ANSIPLUS",INT 10/AX=1100h
--------V-2F1AAD-----------------------------
INT 2F - ANSIPLUS v2.00+ - ANSIPLUS DEVICE STATUS REPORT
	AX = 1AADh
	BL = report request code (81h-96h for v4.00)
	CX = color selector or key code, if required by request
Return: AX = first reported result
	BX = second result
	CX = third result, if applicable (unchanged otherwise)
	DX = fourth result, if applicable (unchanged otherwise)
Desc:	get device status reports equivalent to those for Esc [#n sequences
	  while bypassing any device redirection and avoiding the need to
	  parse the returned result
Note:	the report request code in BL is identical to the number in the
	  corresponding Esc [#n sequence
SeeAlso: AX=1A00h/BX=414Eh,AX=1AACh
--------V-2F1AADDX0000-----------------------
INT 2F U - AVATAR.SYS v0.11 - ???
	AX = 1AADh
	DX = 0000h
	CX = subfunction (00h-0Ch)
	???
Return: AX = 0000h if DX was nonzero
	???
SeeAlso: AX=1A00h/BX=4156h,AX=1A72h
--------V-2F1AAC-----------------------------
INT 2F - ANSIPLUS v3.00+ - LOAD CHARACTER GENERATOR
	AX = 1AACh
--------m-2F1B00-----------------------------
INT 2F U - DOS 4+ XMA2EMS.SYS extension internal - INSTALLATION CHECK
	AX = 1B00h
Return: AL = FFh if installed
Note:	XMA2EMS.SYS extension is only installed if DOS has page frames to hide.
	This extension hooks onto INT 67/AH=58h and returns from that call data
	  which excludes the physical pages being used by DOS.
SeeAlso: AH=1Bh"FRAME INFO"
--------m-2F1B-------------------------------
INT 2F U - DOS 4+ XMA2EMS.SYS extension internal - GET HIDDEN FRAME INFORMATION
	AH = 1Bh
	AL <> 00h
	DI = hidden physical page number
Return: AX = FFFFh if failed (no such hidden page)
	AX = 0000h if OK, then
	    ES = segment of page frame
	    DI = physical page number
Notes:	this corresponds to the data edited out of the INT 67/AH=58h call
	FASTOPEN makes this call with AL = FFh
SeeAlso: AX=1B00h
--------V-2F2300-----------------------------
INT 2F - DR-DOS 5.0 GRAFTABL - INSTALLATION CHECK
	AX = 2300h
Return: AH = FFh
Note:	this installation check does not follow the usual format
SeeAlso: AH=23h,AX=2E00h
--------V-2F23-------------------------------
INT 2F - DR-DOS 5.0 GRAFTABL - GET GRAPHICS DATA
	AH = 23h
	AL nonzero
Return: AH = FFh
	ES:BX -> graphics data (8 bytes for each character from 80h to FFh)
SeeAlso: AX=2300h,AX=2E00h
--------T-2F2700-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - INSTALLATION CHECK
	AX = 2700h
Return: AL = status
	    00h not installed
	    FFh installed
Note:	the TaskMAX API is also supported by Novell DOS 7 TASKMGR in
	  taskswitching mode
--------T-2F2701-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET STATUS
	AX = 2701h
Return: AX = maximum simultaneous tasks
	BX = index into TASK_IDS of current foreground task
	CX = currently-active tasks
	DX = version number (DL = major, DH = minor)
	    (DR-DOS 6.0 = 0001h, Novell DOS 7 = 0002h)
	ES:SI -> TASK_IDS
	ES:DI -> name table (array of 8-byte names, NUL-terminated if <8 chars)="" notes:="" do="" not="" attempt="" to="" create="" a="" new="" task="" if="" cx="=" ax="" the="" task's="" index="" is="" its="" position="" on="" the="" task="" menu,="" while="" its="" id="" is="" the="" position="" within="" the="" internal="" task="" name="" table="" seealso:="" ax="2714h,AX=2716h" --------t-2f2702-----------------------------="" int="" 2f="" -="" dr-dos="" 6.0="" taskmax="" -="" get="" per-task="" ems="" limit="" ax="2702h" return:="" dx="maximum" pages="" int="" 67/ah="42h" will="" report="" available="" note:="" taskmax="" does="" not="" limit="" ems="" allocations="" other="" than="" by="" limiting="" the="" amount="" which="" is="" reported="" as="" being="" available="" at="" a="" given="" time="" seealso:="" ax="2703h,INT" 67/ah="42h" --------t-2f2703-----------------------------="" int="" 2f="" -="" dr-dos="" 6.0="" taskmax="" -="" set="" per-task="" ems="" limit="" ax="2703h" dx="maximum" pages="" int="" 67/ah="42h" should="" report="" available="" return:="" dx="new" maximum="" for="" reporting="" note:="" the="" taskmax="" api="" is="" also="" supported="" by="" novell="" dos="" 7="" taskmgr="" in="" taskswitching="" mode="" seealso:="" ax="2702h,INT" 67/ah="42h" --------t-2f2704-----------------------------="" int="" 2f="" -="" dr-dos="" 6.0="" taskmax="" -="" register/unregister="" task="" manager="" ax="2704h" dl="subfunction" 00h="" unregister="" task="" manager="" 01h="" register="" task="" manager="" return:="" dl="status" 00h="" registered="" 01h="" unregistered="" notes:="" a="" task="" manager="" replaces="" taskmax's="" menu="" system="" with="" its="" own="" user="" interface;="" while="" one="" is="" registered,="" the="" taskmax="" hotkeys="" and="" ctrl-alt-del="" invoke="" the="" manager="" rather="" than="" the="" built-in="" menu="" system="" unregister="" the="" task="" manager="" before="" terminating="" it="" seealso:="" ax="2705h" index:="" hotkeys;taskmax="" --------t-2f2705-----------------------------="" int="" 2f="" -="" dr-dos="" 6.0="" taskmax="" -="" enable/disable="" direct="" switching="" ax="2705h" dl="subfunction" 00h="" disable="" keystrokes="" for="" switching="" to="" next/prev/specified="" task="" 01h="" enable="" return:="" nothing="" note:="" should="" only="" be="" called="" by="" a="" registered="" task="" manager="" (see="" ax="2704h)" seealso:="" ax="2704h,AX=2706h" --------t-2f2706-----------------------------="" int="" 2f="" -="" dr-dos="" 6.0="" taskmax="" -="" switch="" to="" specified="" task="" ax="2706h" dx="task" index="" (see="" ax="2701h)" of="" task="" to="" be="" activated="" return:="" dx="task" index="" of="" previously-active="" task="" note:="" the="" taskmax="" api="" is="" also="" supported="" by="" novell="" dos="" 7="" taskmgr="" in="" taskswitching="" mode="" seealso:="" ax="2705h,AX=2707h,AX=2715h" --------t-2f2707-----------------------------="" int="" 2f="" -="" dr-dos="" 6.0="" taskmax="" -="" create="" new="" task="" ax="2707h" ds:dx="" -=""> ASCIZ pathname of executable
	ES:BX -> parameter block (see #1459)
	CX = number of ticks before automatic return to task manager
		(0000h = run until termination or explicitly switched)
Return: DX = new task's task index (FFFFh if task terminated)
SeeAlso: AX=2706h,AX=2708h

Format of TaskMAX parameter block:
Offset	Size	Description	(Table 1459)
 00h	WORD	reserved, should be 0000h
 02h	DWORD	pointer to command tail to be copied into child's PSP
 06h	DWORD	pointer to first FCB to be copied into child's PSP
 0Ah	DWORD	pointer to second FCB to be copied into child's PSP
--------T-2F2708-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - DELETE TASK
	AX = 2708h
	DX = task index
Return: DX = FFFFh (task deleted)
Notes:	this call should only be used for abnormal task termination, after
	  first checking for open files with AX=270Ch; should not be used
	  with programs that allocate EMS or XMS memory
	switches to specified task first
SeeAlso: AX=2707h
--------T-2F2709-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - NAME TASK
	AX = 2709h
	DX = task index
	DS:SI -> 8-byte name (8 NULs = remove name)
Return: AL = task flags
	    00h ID unused or task terminated
	    01h ID in use, task name table entry valid
	    81h ID in use, task name fixed
	BX = task ID
	ES:DI -> name in task name table (see AX=2701h)
Note:	the task retains the given name until it terminates or the name is
	  removed by specifying a name of 8 NULs.
SeeAlso: AX=2701h,AX=2707h
--------T-2F270A-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - CONVERT TASK INDEX TO TASK ID
	AX = 270Ah
	DX = task index
Return: DX = task ID (FFFFh if index invalid)
Note:	task IDs stay constant, while indexes can change when other tasks are
	  deleted
SeeAlso: AX=2701h,AX=270Bh
--------T-2F270B-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - CONVERT TASK ID TO TASK INDEX
	AX = 270Bh
	DX = task ID
Return: DX = task index (FFFFh if task not active)
Note:	the TaskMAX API is also supported by Novell DOS 7 TASKMGR in
	  taskswitching mode
SeeAlso: AX=270Ah
--------T-2F270C-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - CHECK OPEN FILES
	AX = 270Ch
	DX = task index
Return: AX = number of files currently open for specified task
SeeAlso: AX=2708h
--------T-2F270D-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - CHECK IF TASK RUNNING PRIMARY COMMAND INTERPRETER
	AX = 270Dh
	DX = task index
Return: DX = status
	    0000h if primary command interpreter (COMMAND.COM, etc.) running
	    0001h if not in root shell for task
Note:	TaskMAX will return 0001h if the specified task has spawned another
	  command interpreter with AX=2707h
SeeAlso: AX=2707h,AX=270Ch
--------T-2F270E-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET/SET TEXT PASTE LEAD-IN
	AX = 270Eh
	CX = length of string (max 15 keystrokes, 0000h to get current string)
	DS:SI -> pasting lead-in string (character/scan-code pairs)
Return: ES:DI -> current lead-in string
Note:	the specified sequence of keystrokes is sent to the application before
	  every line of a text-mode spreadsheet paste
SeeAlso: AX=270Fh,AX=2710h,AX=2713h
--------T-2F270F-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET/SET NUMERIC PASTE LEAD-IN
	AX = 270Fh
	CX = length of string (max 15 keystrokes, 0000h to get current string)
	DS:SI -> pasting lead-in string (character/scan-code pairs)
Return: ES:DI -> current lead-in string
Note:	the specified sequence of keystrokes is sent to the application before
	  every number in a numeric-mode spreadsheet paste
SeeAlso: AX=270Eh,AX=2710h,AX=2711h,AX=2713h
--------T-2F2710-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET/SET PASTE LINE TERMINATOR STRING
	AX = 2710h
	CX = length of string (max 15 keystrokes, 0000h to get current string)
	DS:SI -> pasting terminator string (character/scan-code pairs)
Return: ES:DI -> current terminator string
Note:	the specified sequence of keystrokes is sent to the application after
	  every line of a spreadsheet paste operation
SeeAlso: AX=270Eh,AX=270Fh,AX=2713h
--------T-2F2711-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET/SET NUMERIC PASTE DECIMAL POINT
	AX = 2711h
	DX = ASCII code for separator (FFFFh to get current)
Return: DL = current separator character
SeeAlso: AX=270Fh
--------T-2F2712-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - INITIATE EXPORTING TASK DATA
	AX = 2712h
	DX = task index
--------T-2F2713-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - INITIATE PASTE OPERATION
	AX = 2713h
	DX = task index
	CX = paste mode
	    0000h alphanumeric
	    0001h numeric
	    0002h text
SeeAlso: AX=270Eh,AX=270Fh,AX=2710h,AX=2711h
--------T-2F2714-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET SWAP SPACE INFO
	AX = 2714h
Return: CX = total KB of swap space
	DX = available KB of swap space
SeeAlso: AX=2701h
--------T-2F2715-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - SWITCH TO TASK MANAGER
	AX = 2715h
Return: only after calling task is again selected
SeeAlso: AX=2706h
--------T-2F2716-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - GET PASTE BUFFER STATUS
	AX = 2716h
Return: AX = 0000h if AX=2716h,AX=2717h,AX=2718h supported
	    CX = bytes in paste buffer
	    DX = current generation number (updated after every copy operation)
SeeAlso: AX=2701h,AX=2713h,AX=2714h,AX=2717h,AX=2718h
--------T-2F2717-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - PASTE DATA DIRECTLY TO APPLICATION BUFFER
	AX = 2717h
	CX = bytes in destination buffer
	ES:DI -> destination buffer
Return: AX = 0000h if function supported
	    CX = bytes actually copied (FFFFh if buffer too small)
	    DX = current generation number for paste buffer
Note:	the destination buffer may be too small if another task adds more data
	  to the paste buffer after the AX=2716h call but before this call
SeeAlso: AX=2713h,AX=2716h,AX=2718h
--------T-2F2718-----------------------------
INT 2F - DR-DOS 6.0 TaskMAX - COPY DATA DIRECTLY INTO PASTE BUFFER
	AX = 2718h
	CX = bytes in source buffer
	DS:SI -> source buffer (plain ASCII, lines terminated with CR LF)
Return: AX = 0000h if function supported
	    CX = bytes actually copied
	    DX = current generation number for paste buffer
SeeAlso: AX=2712h,AX=2716h,AX=2717h
--------T-2F2719-----------------------------
INT 2F - Novell DOS 7 TaskMGR - NOP
	AX = 2719h to 271Bh
--------T-2F271C-----------------------------
INT 2F U - Novell DOS 7 TaskMGR - ???
	AX = 271Ch
	DX = ???
	    bit 0: ???
Return: ???
	---if DX bit 0 set---
	AX = 0031h
	CX = 0000h
BUG:	if the task switcher is running, and DX bit 0 is set on call, this
	  function will crash because its exit code attempts to pop several
	  registers which are not pushed when DX bit 0 is set
--------m-2F2780CL01-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = 01h (function number)
	CH = subfunction
	    00h unused
		Return: CX = status (0002h) (see #1460)
	    01h unused
		Return: CX = status (0002h) (see #1460)
	    02h ???
		BX = ??? (0005h-000Fh)
		Return: CX = status (0000h,0030h) (see #1460)
	    03h allocate ???
		DX = ???
		Return: CX = status (0000h,0003h) (see #1460)
	    04h get ???
		Return: CX = 0000h (successful)
			BX = selector for EMM386 data segment
			EBX high word cleared
	    05h ???
		EDX = ???
		Return: ???
	    06h return to real mode via triple fault
	    07h debugger break
		Note:	calls INT 03, then INT 21/AH=02h to output a question
			  mark
		 08h get ???
		Return: CX = 0000h (successful)
			EBX = ??? (0 or 2)
	    09h ???
	    0Ah ???
	    0Bh unused
		Return: CX = status (0002h) (see #1460)
	    0Ch ??? manipulates DOS memory chain
	    0Dh ???
		EBX = ???
		EDX = ???
		Return: ???
	    0Eh ???
		Return: CX = 0000h (successful)
			BL = ???     \ or BX = 0000h
			BH = ???     /
	    0Fh get ???
		Return: CX = 0000h (successful)
			EBX = ???
	    10h get and set ???
		EDX = ???
		Return: CX = 0000h (successful)
			EBX = old value of ???
		 11h get ???
		Return: CX = 0000h (successful)
			EBX = ??? (0100h)
	    12h get and set ???
		DX = ???
		Return: CX = 0000h (successful)
			AX = old value of ???
	    13h ???
		Return: CX = status (0000h,003Fh) (see #1460)
			AX = ???
	    14h ???
		EDX = ???
		Return: CX = status (0000h,003Fh) (see #1460)
	    15h ???
		BX = segment of ???
		Return: CX = 0000h (successful)
			BX = segment of ???
	    16h ???
	    17h ???
		EBX = subfunction (0-2)
		Return: CX = status (0002h if EBX>2) (see #1460)
			???
	    18h unused
		Return: CX = status (0002h) (see #1460)
Return: CX = status (most subfunctions)
	(E)AX and/or (E)BX contain return values, depending on function
Notes:	called by DPMS.EXE and EMM386.EXE
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=02h,AX=2780h/CL=03h,AX=2780h/CL=04h

(Table 1460)
Values for Novell DOS 7 EMM386 function status:
 0000h	successful
 0001h	invalid function???
 0002h	invalid subfunction
 0003h	???
 0004h	invalid ??? index
 0005h	???
 0006h	???
 0007h	???
 0009h	???
 000Ah	???
 000Bh	invalid ??? handle
 000Ch	???
 000Dh	???
 000Eh	???
 000Fh	???
 0014h	???
 0023h	???
 0030h	???
 003Fh	???
--------m-2F2780CL02-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = 02h (function number)
	CH = subfunction
	    00h ???
		???
		Return: CX = status (0000h,0023h, others???) (see #1460)
			BX = ??? (0000h if CX=0000h, FFFFh if CX=0023h)
		Note:	calls func 04h/sf 03h, func 04h/sf 1Eh,func 02h/sf 43h,
			  func 02h/sf 0Bh, and func 04h/sf 01h
	    01h get and clear ???
		DX = ??? handle or 0000h for default
		Return: CX = status (0000h,000Bh) (see #1460)
			EBX = old value of ??? if successful
			EDX destroyed
	    02h ???
		DX = index of ???
		Return: CX = status (0000h,0004h,0005h) (see #1460)
			EBX = 0000FFFFh on error, 00000000h if successful
	    03h ???
		DX = index of ???
		Return: CX = status (0000h,0004h,0006h) (see #1460)
			BX = FFFFh on error, 0000h if successful
	    04h ???
		Return: CX = status (0000h,0007h,000Ah) (see #1460)
	    05h ???
		EDX -> ??? data (first 8 bytes seem to be name)
		Return: CX = status (0000h,0009h,000Dh) (see #1460)
	    06h ???
		Note:	calls fn 02h/subfn 05h, then fn 02h/subfn 40h
	    07h ???
		EDX = ???
		Return: CX = status (0000h,0009h,000Eh) (see #1460)
	    08h ???
		EDX = ???
		Return: CX = status (0000h,0009h,000Eh) (see #1460)
		 09h ???
		EDX = ???
		Return: CX = status (0000h,0009h,000Fh) (see #1460)
	    0Ah ???
		EDX = ???
		Return: CX = status (0000h,0009h,000Fh) (see #1460)
	    0Bh ???
		DX = ???
		Return: CX = 0000h (successful)
	    0Ch ???
		Return: CX = 0000h (successful)
	    0Dh ???
		Return: CX = status (0000h,0023h) (see #1460)
			BX = FFFFh on error, 0000h if successful
		Note:	calls fn 04h/subfn 03h, fn 04h/subfn 1Eh,
			  fn 02h/subfn 43h, fn 02h/subfn 0Bh, fn 04h/sub 01h
	    0Eh ???
		???
		Return: CX = status (0000h,000Ch) (see #1460)
			EBX = ??? if successful
	    0Fh ???
		BX = ???
		DX = ??? handle or 0000h for default
		Return: CX = status (0000h,000Bh) (see #1460)
	    10h get ??? handle
		Return: CX = 0000h (successful)
			BX = handle of default ???
			EBX high word cleared
	    11h ???
		DX = ??? handle or 0000h for default
		BX = ??? (handle???)
		Return:	CX = status (0000h,000Bh,0014h) (see #1460)
	    12h ???
		BX = ???
		DX = ???
		Return: CX = 0000h (successful)
	    13h ???
		DX = ???
		Return: CX = status (see #1460)
	    14h ???
		BX = ???
		DX = ???
		Return: CX = status (0000h,0014h) (see #1460)
			BX = FFFFh on error, ??? if successful
	    15h set ??? flags
		BX = ??? (low two bits only)
		DX = ??? handle or 0000h for default
		Return: CX = status (0000h,000Bh) (see #1460)
			BX = new value of ??? flags (entire word)
			EBX high register cleared
	    16h clear ??? flag for default ???
		Return: CX = 0000h (successful)
	    17h ???
	    18h ???
	    19h ???
	    1Ah ???
	    1Bh ???
	    1Ch ???
	    1Dh ???
	    1Eh ???
	    1Fh ???
	    20h ???
	    21h ???
	    22h ???
	    23h ???
	    24h ???
	    25h ???
	    26h ???
	    27h ???
		 28h ???
	    29h ???
	    2Ah ???
	    2Bh ???
	    2Ch ???
	    2Dh ???
	    2Eh ???
	    2Fh ???
	    30h ???
	    31h ???
	    32h ???
	    33h ???
	    34h ???
	    35h ???
	    36h ???
	    37h ???
	    38h ???
	    39h ???
	    3Ah ???
	    3Bh ???
	    3Ch ???
	    3Eh ???
	    3Fh ???
		 40h ???
	    41h ???
	    42h ???
	    43h ???
	    44h ???
	    45h ???
	    46h ???
	    47h ???
Return: CX = status (most subfunctions)
	(E)AX and/or (E)BX contain return values, depending on function
Notes:	called by DPMS.EXE and EMM386.EXE
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=03h,AX=2780h/CL=04h
--------m-2F2780CL03-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = 03h (function number)
	CH = subfunction
	    00h ???	
		 01h ???
	    02h ???
	    03h ???
	    04h ???
	    05h ???
	    06h ???
	    07h ???
	    08h ???
	    09h ???
	    0Ah ???
	    0Bh ???
	    0Ch ???
	    0Dh ???
	    0Eh ???
	    0Fh ???
	    10h ???
	    11h ???
	    12h ???
	    13h ???
	    14h ???
	    15h ???
	    16h ???
	    17h ???
		 18h ???
	    19h ???
	    1Ah ???
	    1Bh ???
	    1Ch ???
	    1Dh ???
	    1Eh ???
	    1Fh ???
	    20h ???
	    21h ???
	    22h ???
	    23h ???
	    24h ???
	    25h ???
	    26h ???
	    27h ???
	    28h ???
	    29h ???
	    2Ah ???
	    2Bh ???
	    2Ch ???
	    2Dh ???
	    2Eh ???
		 2Fh ???
	    30h ???
	    31h ???
	    32h ???
	    33h ???
	    34h ???
	    35h ???
	    36h ???
	    37h ???
Return: CX = status (most subfunctions)
	(E)AX and/or (E)BX contain return values, depending on function
Notes:	called by DPMS.EXE and EMM386.EXE
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=04h
--------m-2F2780CL04-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = 04h (function number)
	CH = subfunction
		 00h ???
	    01h ???
	    02h ???
	    03h ???
	    04h ???
	    05h ???
	    06h ???
	    07h ???
	    08h ???
	    09h ???
	    0Ah ???
	    0Bh ???
	    0Ch ???
	    0Dh ???
	    0Eh ???
	    0Fh ???
	    10h ???
	    11h ???
	    12h ???
	    13h ???
	    14h ???
	    15h ???
	    16h ???
		 17h ???
	    18h ???
	    19h ???
	    1Ah ???
	    1Bh ???
	    1Ch ???
	    1Dh ???
	    1Eh ???
	    1Fh ???
	    20h ???
	    21h ???
	    22h ???
	    23h ???
	    24h ???
	    25h ???
	    26h ???
	    27h ???
	    28h ???
	    29h ???
	    2Ah ???
	    2Bh ???
	    2Ch ???
	    2Dh ???
		 2Eh ???
	    2Fh ???
	    30h ???
	    31h ???
	    32h ???
Return: CX = status (most subfunctions)
	(E)AX and/or (E)BX contain return values, depending on function
Notes:	called by DPMS.EXE and EMM386.EXE
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=03h
--------m-2F2780CL05-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = 05h
	???
Return: ???
Notes:	called by DPMS.EXE and EMM386.EXE
	the handler for this function may be set by one of the subfunctions
	  of AX=2780h/CL=01h; the default handler returns AX=BX=FFFFh and
	  CX=0001h (see #1460)
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=03h
--------m-2F2780CL06-------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = 06h
	???
Return: ???
Notes:	called by DPMS.EXE and EMM386.EXE
	the handler for this function may be set by one of the subfunctions
	  of AX=2780h/CL=01h; the default handler returns AX=BX=FFFFh and
	  CX=0001h (see #1460)
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=03h
--------m-2F2780-----------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - MULTITASKING API
	AX = 2780h
	CL = function (07h-0Fh)
	???
Return: ???
Notes:	called by DPMS.EXE and EMM386.EXE
	the handlers for each of these functions may be set individually by
	  one of the subfunctions of AX=2780h/CL=01h; the default handlers
	  return with all registers unchanged
	this API is only available if AX=12FFh/BX=0EDCh returns successfully;
	  because the request is handled on the initial trap to the memory
	  manager caused by INT instructions, this API must be invoked with
	  an actual INT 2F instruction instead of some simulation such as a
	  far call to the address in the interrupt vector table
SeeAlso: AX=12FF/BX=0EDCh,AX=2780h/CL=01h,AX=2780h/CL=02h,AX=2780h/CL=03h
--------T-2F2781-----------------------------
INT 2F U - Novell DOS 7 TaskMGR - BEGIN CRITICAL SECTION???
	AX = 2781h
Return: ???
SeeAlso: AX=2782h
--------T-2F2782-----------------------------
INT 2F U - Novell DOS 7 TaskMGR - END CRITICAL SECTION???
	AX = 2782h
Return: ???
SeeAlso: AX=2781h
--------m-2F2783-----------------------------
INT 2F U - Novell DOS 7 - EMM386.EXE - GET ???
	AX = 2783h
Return: AX = ???
	BX = ???
--------T-2F278F-----------------------------
INT 2F U - Novell DOS 7 TaskMGR - ??? API
	AX = 278Fh
	as for INT 2F/AX=2780h
Return: as for INT 2F/AX=2780h
Note:	Novell DOS 7 TaskMGR passes this call through to INT 2F/AX=2780h
	  without changing any other registers
SeeAlso: AX=2780h,AX=2782h
--------F-2F2A-------------------------------
INT 2F - Gammafax DOS Dispatcher INTERFACE
	AH = 2Ah
Note:	details not available at this time
SeeAlso: AX=8000h"FaxBIOS",AX=C000h/BX=444Bh,AX=CB00h,AX=CBDDh,INT 66"BitFax"
--------V-2F2E00-----------------------------
INT 2F U - Novell DOS 7 - GRAFTABL - INSTALLATION CHECK
	AX = 2E00h
Return: AH = FFh if installed
Note:	this installation check does not follow the usual format of setting
	  AL to FFh
SeeAlso: AX=2300h,AH=2Eh"GRAFTABL"
--------V-2F2E-------------------------------
INT 2F U - Novell DOS 7 - GRAFTABL - GET FONT TABLE
	AH = 2Eh
	AL nonzero
Return: AH = FFh if installed
	    ES:BX -> graphics data (8 bytes per character from 80h to FFh)
SeeAlso: AX=2E00h,AH=23h"GRAFTABL"
--------t-2F3900-----------------------------
INT 2F - Kingswood TSR INTERFACE - COMPATIBILITY MODE
	AX = 3900h
Return: AL = status
	    00h not installed
	    FFh one or more TSRs using this interface is installed
		DX may be destroyed
Note:	this function is provided to that the multiplex number will appear used
	  to other programs
SeeAlso: AH=39h/BL=00h
--------t-2F39--BL00-------------------------
INT 2F - Kingswood TSR INTERFACE - INSTALLATION CHECK
	AH = 39h
	BL = 00h
	AL = TSR ID number (01h-FFh, currently only 01h-1Bh used) (see #1461)
Return: AL = status
	    00h not installed
	    FFh installed
		DX = segment address of resident module
Note:	All of Kingswood Software's TSRs use this interface.  Usually the
	  resident module is installed by allocating a block of upper memory,
	  setting its owner ID to 000Ah (used by DOS), and filling the MCB name
	  field with the TSR's name.
SeeAlso: #1462,AX=3900h,AH=39h/BL=01h

(Table 1461)
Values for Kingswood TSR ID number:
 01h	TSR Windows
 02h	NOBUSY
 03h	CD STACK
 04h	DISK WATCH
 05h	PUSHBP
 06h	ALIAS
 07h	KEYMACRO
 08h	SLOWDOWN
 09h	ANSIGRAB
 0Ah	TEE
 0Bh	FASTMOUS
 0Ch	EXTWILD
 0Dh	BREAKOUT
 0Eh	STOPDISK
 0Fh	MEMINIT
 10h	JANUSEXT
 11h	CAPS
 12h	ANSI
 13h	TRAPPER
 14h	EATMEM
 15h	WPJOKE
 16h	SHOWDOS
 17h	LOGINTS
 18h	BLANKVGA
 19h	SWAPEXEC
 1Ah	SHELL
 1Bh	TSRGAMES

Format of Kingswood TSR modules:
Offset	Size	Description	(Table 1462)
 00h  4 BYTEs	signature "FTSR"
 04h	WORD	segment address of this module (used to check validity)
 06h	WORD	number of words to skip (usually 0000h if no PSP present)
 08h  N WORDs	module-defined data that must be at a fixed segment offset
		(usually only a PSP if file access is required)
     5N BYTEs	interrupt list (see #1463)
	BYTE	FFh terminator

Format of Kingswood TSR interrupt list entry:
Offset	Size	Description	(Table 1463)
 00h	BYTE	interrupt number (00h-FEh)
 01h	WORD	offset within segment of DWORD pointer to previous interrupt
 03h	WORD	offset within segment of begin of interrupt handler code
--------t-2F39--BL01-------------------------
INT 2F - Kingswood TSR INTERFACE - REMOVAL CHECK
	AH = 39h
	BL = 01h
	AL = TSR ID number (01h-FFh) (see #1461)
Return: AL = status
	    00h not ready to be removed
	    FFh resident module may be removed by deassigning the interrupts
		  hooked by the TSR and deallocating the TSR's memory block
	AH,BX,CX,DX,ES may be destroyed
SeeAlso: AX=3900h,AH=39h/BL=00h
--------t-2F39-------------------------------
INT 2F - Kingswood TSR INTERFACE - APPLICATION-SPECIFIC FUNCTION CALLS
	AH = 39h
	BL = function number (02h-FFh)
	AL = TSR ID number (01h-FFh) (see #1461)
	CX,DX,SI,DI,DS,ES may contain parameters
	BH reserved for use by the function dispatcher
Return: as appropriate for the called function
SeeAlso: AX=3900h,AH=39h/BL=00h,AX=3901h/BL=02h
--------r-2F3901BL02-------------------------
INT 2F - Kingswood TSR Windows - OPEN WINDOW
	AX = 3901h
	BL = 02h
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Notes:	opens the next TSR window on top of any others.	 Only three
	  TSR windows can be opened at any one time.  The three windows
	  are all 40x11 characters, partly overlapping.
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=03h,AX=3901h/BL=05h,AX=3901h/BL=06h
--------r-2F3901BL03-------------------------
INT 2F - Kingswood TSR Windows - HIDE WINDOWS
	AX = 3901h
	BL = 03h
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Notes:	Hide any visible TSR windows from view.
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=02h,AX=3901h/BL=05h
--------r-2F3901BL04-------------------------
INT 2F - Kingswood TSR Windows - SHOW WINDOWS
	AX = 3901h
	BL = 04h
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Notes:	Re-display all TSR windows after a HIDE WINDOWS call.
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=02h,AX=3901h/BL=03h
--------r-2F3901BL05-------------------------
INT 2F - Kingswood TSR Windows - CLOSE WINDOW
	AX = 3901h
	BL = 05h
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Notes:	Close the last opened TSR window.
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=02h
--------r-2F3901BL06-------------------------
INT 2F - Kingswood TSR Windows - SET WINDOW TITLE
	AX = 3901h
	BL = 06h
	DS:SI -> title string
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=02h
--------r-2F3901BL07-------------------------
INT 2F - Kingswood TSR Windows - POSITION CURSOR
	AX = 3901h
	BL = 07h
	CH = Y coordinate (0-10)
	CL = X coordinate (0-39)
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Note:	the hardware cursor is always disabled when a TSR window is opened;
	  this call only sets a text position
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=08h,AX=3901h/BL=09h
--------r-2F3901BL08-------------------------
INT 2F - Kingswood TSR Windows - DISPLAY STRING
	AX = 3901h
	BL = 08h
	DS:SI -> string
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Notes:	The text is not clipped.
	This routine understands Tab, NewLine and Carriage Return
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=07h
--------r-2F3901BL09-------------------------
INT 2F - Kingswood TSR Windows - SCROLL WINDOW
	AX = 3901h
	BL = 09h
	CL = scroll direction: 01h up, FFh down, 00h clear window
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=07h
--------r-2F3901BL0A-------------------------
INT 2F - Kingswood TSR Windows - SOUND BEEPER
	AX = 3901h
	BL = 0Ah
	DX = sound divisor, or 0 for silence.
	     (divide 1843200 by required frequency to get value for DX)
	CL = sound length in 18.2 Hz clock ticks
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
SeeAlso: AH=39h/BL=00h
--------r-2F3901BL0B-------------------------
INT 2F - Kingswood TSR Windows - ADD OR REMOVE USER
	AX = 3901h
	BL = 0Bh
	CL = number of users increment: +1 if adding a new user
					-1 if removing a user
Return: AX = error code (0000h if successful)
	SI,DI,DS,ES preserved
Note:	the TSR windows resident module may only be removed when the internal
	  user count is zero
SeeAlso: AH=39h/BL=00h,AX=3901h/BL=02h
--------V-2F3912BL03-------------------------
INT 2F - Kingswood ANSI display driver - SET COMPATIBILITY MODE
	AX = 3912h
	BL = 03h
	CL = new mode (00h fast, FFh BIOS)
Return: AL = old compatibility mode
	SI,DI,DS,ES preserved
SeeAlso: AX=3900h,AX=3912h/BL=04h
--------V-2F3912BL04-------------------------
INT 2F - Kingswood ANSI display driver - SET FLAGS
	AX = 3912h
	BL = 04h
	CL = new flags (see #1464)
Return: AL = old flags
	SI,DI,DS,ES preserved
SeeAlso: AX=3900h,AX=3912h/BL=03h

Bitfields for Kingswood ANSI flags:
Bit(s)	Description	(Table 1464)
 0	do not wrap at end of line
 1	wait for beeps to end before displaying next character
 2	do not use graphics cursor
--------W-2F4000-----------------------------
INT 2F - Windows 3.x (OS/2 2.x???) - GET VIRTUAL DEVICE DRIVER (VDD) CAPABLTIES
	AX = 4000h
Return: AL = video virtualization (see #1465)
Note:	this function is used by display drivers to find out what capabilities
	  exist for the VDD driver and also trigger the VDD driver to call
	  functions 4005h and 4006h.  This function also gives the Video Driver
	  hardware access to the video registers.

(Table 1465)
Values for Windows video virtualization:
 01h	does not virtualize video access
 02h	virtualizes the video when in text mode
 03h	virtualizes the video when in text mode or single plane graphics modes
 04h	virtualizes the video when in text mode, single plane graphics modes,
	  and VGA multiplane modes
 FFh	virtualizes the video fully
--------O-2F4001-----------------------------
INT 2F C - OS/2 compatibility box - SWITCHING DOS TO BACKGROUND
	AX = 4001h
Note:	called by OS/2 when the DOS box is about to be placed in the background
	  and the video driver should save any necessary state
SeeAlso: AX=4002h,AX=4005h
--------O-2F4002-----------------------------
INT 2F C - OS/2 compatibility box - SWITCHING DOS TO FOREGROUND
	AX = 4002h
Note:	called by OS/2 when the DOS box is about to be placed in the foreground
	  and the video driver should restore the previously-saved state
SeeAlso: AX=4001h,AX=4006h
--------W-2F4003-----------------------------
INT 2F - Windows 3.x - ENTERING VIDEO DRIVER CRITICAL SECTION
	AX = 4003h
Note:	This critical section must be exited within 1 second.
SeeAlso: AX=4004h
--------W-2F4004-----------------------------
INT 2F - Windows 3.x - EXITING VIDEO DRIVER CRITICAL SECTION
	AX = 4004h
SeeAlso: AX=4003h
--------W-2F4005-----------------------------
INT 2F C - Windows 3.x - SWITCHING DOS TO BACKGROUND
	AX = 4005h
Note:	called by Windows when the DOS box is about to be placed in the
	  background and the video driver should save any necessary state
	  information (this may be called only in Standard mode)
SeeAlso: AX=4001h,AX=4006h
--------W-2F4006-----------------------------
INT 2F C - Windows 3.x - SWITCHING DOS TO FOREGROUND
	AX = 4006h
Note:	called by Windows when the DOS box is about to be placed in the
	  foreground and the video driver should restore any necessary state
	  information (this may be called only in Standard mode)
SeeAlso: AX=4002h,AX=4005h
--------W-2F4007-----------------------------
INT 2F - Windows 3.x - ENABLE VDD TRAPPING OF VIDEO REGISTERS
	AX = 4007h
Note:	used by Windows Standard mode
--------O-2F4010-----------------------------
INT 2F - OS/2 v2.0+ - INSTALLATION CHECK / GET VERSION
	AX = 4010h
Return: AX = 4010h if OS/2 not installed
	AX = 0000h for OS/2 Warp 3.0
	BX = OS/2 version if installed
Note:	OS/2 Warp 3.0 
SeeAlso: INT 21/AH=30h,INT 21/AX=3306h
--------E-2F4040-----------------------------
INT 2F - PharLap 286|DOS-Extender Lite v2.5 - ???
	AX = 4040h
Return: BX:CX -> ???
--------N-2F4100-----------------------------
INT 2F - DOS Enhanced LAN Manager 2.0+ MINIPOP/NETPOPUP - INSTALLATION CHECK
	AX = 4100h
Return: CF clear if successful
	    AL = FFh
	CF set on error
	    AX = ???
Notes:	MINIPOP and NETPOPUP provide a network message popup service
	LAN Manager enhanced mode adds features beyond the standard redirector
	  file/printer services
SeeAlso: AX=118Ah,AX=4103h,AX=4104h,AH=42h,AH=4Bh
--------N-2F4103-----------------------------
INT 2F - DOS Enhanced LAN Manager 2.0+ MINIPOP/NETPOPUP - ???
	AX = 4103h
Return: ???
SeeAlso: AX=4100h,AX=4104h
--------N-2F4104-----------------------------
INT 2F - DOS Enhanced LAN Manager 2.0+ MINIPOP/NETPOPUP - ???
	AX = 4104h
Return: ???
SeeAlso: AX=4100h,AX=4103h
--------N-2F42-------------------------------
INT 2F - LAN Manager 2.0 DOS Enhanced MSRV.EXE - MESSENGER SERVICE
	AH = 42h
	???
Return: ???
Note:	LAN Manager enhanced mode adds features beyond the standard redirector
	  file/printer services
SeeAlso: AX=118Ah,AX=4100h,AH=4Bh
--------m-2F4300-----------------------------
INT 2F - EXTENDED MEMORY SPECIFICATION (XMS) v2+ - INSTALLATION CHECK
	AX = 4300h
Return: AL = 80h XMS driver installed
	AL <> 80h no driver
Notes:	XMS gives access to extended memory and noncontiguous/nonEMS memory
	  above 640K
	this installation check DOES NOT follow the format used by other
	  software
SeeAlso: AX=4310h
Index:	installation check;XMS version 2+
--------m-2F4308-----------------------------
INT 2F U - HIMEM.SYS v2.77+ - GET A20 HANDLER NUMBER
	AX = 4308h
Return: AL = 43h if supported
	    BL = A20 handler number (value of /MACHINE:nn switch)
	    BH = AT A20 switch time (00h medium, 01h fast, 02h slow)
Note:	if the A20 handler number returned in BL is 00h, an external handler
	  is being used (see AX=4330h)
SeeAlso: AX=4309h,AX=4330h
--------m-2F4309-----------------------------
INT 2F U - HIMEM.SYS v3.09+ - GET XMS HANDLE TABLE
	AX = 4309h
Return: AL = 43h if function supported
	    ES:BX -> XMS handle table (see #1466)
Note:	HIMEM.SYS v3.09 is part of MS-DOS 6.0.
SeeAlso: AX=4308h

Format of XMS handle table:
Offset	Size	Description	(Table 1466)
 00h	BYTE	??? (01h in HIMEM.SYS v3.09)
 01h	BYTE	size of one handle descriptor
 02h	WORD	number of handles (default = 20h)
 04h	DWORD	pointer to XMS handle array (see #1467)
SeeAlso: #1496

Format of XMS handle descriptor [array]:
Offset	Size	Description	(Table 1467)
 00h	BYTE	flag
		01h=free, 02h=used, 04h=in pool but not associated with any EMB
 01h	BYTE	lock count (00h=unlocked)
 02h	DWORD	address of XMS block in KB (shift left by 10 for abs. address)
 06h	DWORD	size of XMS block in KB
--------m-2F4310-----------------------------
INT 2F - EXTENDED MEMORY SPECIFICATION (XMS) v2+ - GET DRIVER ADDRESS
	AX = 4310h
Return: ES:BX -> driver entry point (see #1468,#1469,#1472,#1479,#1488,#1493)
Notes:	HIMEM.SYS v2.77 chains to previous handler if AH is not 00h or 10h
	HIMEM.SYS requires at least 256 bytes free stack space when calling
	  the driver entry point
SeeAlso: AX=4300h,AX=4310h"Cloaking",AX=4310h"Netroom"

Format of XMS driver entry point:
Offset	Size	Description	(Table 1468)
 00h  5 BYTEs	jump to actual handler
		either short jump (EBh XXh) followed by three NOPs or
		  far jump (EAh XXXX:XXXX) to a program which has hooked itself
		  into the XMS driver chain
Note:	to hook into the XMS driver chain, a program should follow the chain of
	  far jumps until it reaches the short jump of the driver at the end
	  of the chain; this short jump is to be replaced with a far jump to
	  the new handler's entry point, which should contain a short jump
	  followed by three NOPs.  The new handler must return to the address
	  pointed at by the short jump which was overwritten.  Using this
	  method, the new handler becomes the first to see every XMS request.

(Table 1469)
Call the XMS driver "Get XMS version number" function with:
	AH = 00h
Return: AX = XMS version (in BCD, AH=major, AL=minor)
	BX = internal revision number (in BCD for HIMEM.SYS)
	DX = High Memory Area (HMA) state
	    0001h HMA (1M to 1M + 64K) exists
	    0000h HMA does not exist
SeeAlso: #1470,#1471,#1476,#1477,#1483

(Table 1470)
Call the XMS driver "Request High Memory Area" function with:
	AH = 01h
	DX = memory in bytes (for TSR or device drivers)
	    FFFFh if application program
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,90h,91h,92h) (see #1494)
Note:	HIMEM.SYS will fail function 01h with error code 91h if AL=40h and
	  DX=KB free extended memory returned by last call of function 08h
SeeAlso: #1471,#1503

(Table 1471)
Call the XMS driver "Release High Memory Area" function with:
	AH = 02h
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,90h,93h) (see #1494)
SeeAlso: #1470

(Table 1472)
Call the XMS driver "Global enable A20, for using the HMA" function with:
	AH = 03h
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,82h) (see #1494)
SeeAlso: #1473,#1474

(Table 1473)
Call the XMS driver "Global disable A20" function with:
	AH = 04h
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,82h,94h) (see #1494)
SeeAlso: #1472,#1475

(Table 1474)
Call the XMS driver "Local enable A20" function with:
	AH = 05h
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,82h) (see #1494)
Note:	this function is used for direct access to extended memory
SeeAlso: #1472,#1475

(Table 1475)
Call the XMS driver "Local disable A20" function with:
	AH = 06h
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,82h,94h) (see #1494)
SeeAlso: #1473,#1474

(Table 1476)
Call the XMS driver "Query A20 state" function with:
	AH = 07h
Return: AX = status
	    0001h enabled
	    0000h disabled
		BL = error code (00h,80h,81h) (see #1494)
SeeAlso: #1469,#1477

(Table 1477)
Call the XMS driver "Query free extended memory" function with:
	AH = 08h
	BL = 00h (some implementations leave BL unchanged on success)
Return: AX = size of largest extended memory block in KB
	DX = total extended memory in KB
	BL = error code (00h,80h,81h,A0h) (see #1494)
Note:	this function does not include the HMA in the returned memory sizes
SeeAlso: #1469,#1476,#1478,#1490

(Table 1478)
Call the XMS driver "Allocate extended memory block" function with:
	AH = 09h
	DX = Kbytes needed
Return: AX = status
	    0001h success
		DX = handle for memory block
	    0000h failure
		BL = error code (80h,81h,A0h) (see #1494)
SeeAlso: #1477,#1480,#1483,#1484,#1485,#1491

(Table 1479)
Call the XMS driver "Free extended memory block" function with:
	AH = 0Ah
	DX = handle of block to free
Return: AX = status
		 0001h success
	    0000h failure
		BL = error code (80h,81h,A2h,ABh) (see #1494)
SeeAlso: #1478,#1491

(Table 1480)
Call the XMS driver "Move extended memory block" function with:
	AH = 0Bh
	DS:SI -> EMM structure (see #1495)
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h-82h,A3h-A9h) (see #1494)
Note:	if either handle in the EMM structure is 0000h, the corresponding
	  offset is considered to be an absolute segment:offset address in
	  directly addressable memory
SeeAlso: #1478,#1481

(Table 1481)
Call the XMS driver "Lock extended memory block" function with:
	AH = 0Ch
	DX = handle of block to lock
Return: AX = status
		 0001h success
		DX:BX = 32-bit linear address of locked block
	    0000h failure
		BL = error code (80h,81h,A2h,ACh,ADh) (see #1494)
Note:	MS Windows 3.x rejects this function for handles allocated after
	  Windows started
SeeAlso: #1478,#1480,#1482

(Table 1482)
Call the XMS driver "Unlock extended memory block" function with:
	AH = 0Dh
	DX = handle of block to unlock
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,A2h,AAh) (see #1494)
SeeAlso: #1481

(Table 1483)
Call the XMS driver "Get handle information" function with:
	AH = 0Eh
	DX = handle for which to get info
Return: AX = status
		 0001h success
		BH = block's lock count
		BL = number of free handles left
		DX = block size in KB
	    0000h failure
		BL = error code (80h,81h,A2h) (see #1494)
BUG:	MS Windows 3.10 acts as though unallocated handles are in use
Note:	MS Windows 3.00 has problems with this call
SeeAlso: #1469,#1478,#1492

(Table 1484)
Call the XMS driver "Reallocate extended memory block" function with:
	AH = 0Fh
	DX = handle of block
	BX = new size of block in KB
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,81h,A0h-A2h,ABh) (see #1494)
SeeAlso: #1478,#1487

(Table 1485)
Call the XMS driver "Request upper memory block" function with:
	AH = 10h
	DX = size of block in paragraphs
Return: AX = status
	    0001h success
		BX = segment address of UMB
		DX = actual size of block
	    0000h failure
		BL = error code (80h,B0h,B1h) (see #1494)
		DX = largest available block
Notes:	Upper Memory consists of non-EMS memory between 640K and 1024K
	the XMS driver need not implement functions 10h through 12h to be
	  considered compliant with the standard
SeeAlso: #1478,#1486,#1504

(Table 1486)
Call the XMS driver "Release upper memory block" function with:
	AH = 11h
	DX = segment address of UMB to release
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,B2h) (see #1494)
Note:	the XMS driver need not implement functions 10h through 12h to be
	  considered compliant with the standard
SeeAlso: #1479,#1485,#1487

(Table 1487)
Call the XMS v3.0+ driver "Reallocate upper memory block" function with:
	AH = 12h
	DX = segment address of UMB to resize
	BX = new size of block in paragraphs
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,B0h,B2h) (see #1494)
		DX = maximum available size (RM386)
Note:	the XMS driver need not implement functions 10h through 12h to be
	  considered compliant with the standard
SeeAlso: #1484,#1485,#1486,#1502

(Table 1488)
Call the QEMM v5.11 "???" function with:
	AH = 34h  (QEMM 5.11 only, undocumented)
	???
Return: ???
SeeAlso: #1489

(Table 1489)
Call the QEMM v5.11 "???" function with:
	AH = 44h  (QEMM 5.11 only, undocumented)
	???
Return: ???
SeeAlso: #1488,#1502

(Table 1490)
Call the XMS v3.0 driver "Query free extended memory" function with:
	AH = 88h
Return: EAX = largest block of extended memory, in KB
	BL = status (00h,80h,81h,A0h) (see #1494)
	ECX = physical address of highest byte of memory
	    (valid even on error codes 81h and A0h)
	EDX = total Kbytes of extended memory (0 if status A0h)
BUG:	HIMEM v3.03-3.07 crash on an 80286 machine if any of the 8Xh functions
	  are called
SeeAlso: #1477,#1491

(Table 1491)
Call the XMS v3.0 driver "Allocate any extended memory" function with:
	AH = 89h
	EDX = Kbytes needed
Return: AX = status
	    0001h success
		DX = handle for allocated block (free with AH=0Ah) (see #1479)
	    0000h failure
		BL = status (80h,81h,A0h,A1h,A2h) (see #1494)
SeeAlso: #1478,#1490

(Table 1492)
Call the XMS v3.0 driver "Get extended EMB handle information" function with:
	AH = 8Eh
	DX = handle
Return: AX = status
	    0001h success
		BH = block's lock count
		CX = number of free handles left
		EDX = block size in KB
	    0000h failure
		BL = status (80h,81h,A2h) (see #1494)
BUG:	MS-DOS 6.0 HIMEM.SYS leaves CX unchanged
SeeAlso: #1483,#1491,#1493

(Table 1493)
Call the XMS v3.0 driver "Reallocate any extended memory block" function with:
	AH = 8Fh
	DX = unlocked memory block handle
	EBX = new size in KB
Return: AX = status
	    0001h success
	    0000h failure
		BL = status (80h,81h,A0h-A2h,ABh) (see #1494)
BUG:	HIMEM v3.03-3.07 crash on an 80286 machine if any of the 8Xh functions
	  are called
SeeAlso: #1484,#1492

(Table 1494)
Values for XMS error code returned in BL:
 00h	successful
 80h	function not implemented
 81h	Vdisk was detected
 82h	an A20 error occurred
 8Eh	a general driver error
 8Fh	unrecoverable driver error
 90h	HMA does not exist or is not managed by XMS provider
 91h	HMA is already in use
 92h	DX is less than the /HMAMIN= parameter
 93h	HMA is not allocated
 94h	A20 line still enabled
 A0h	all extended memory is allocated
 A1h	all available extended memory handles are allocated
 A2h	invalid handle
 A3h	source handle is invalid
 A4h	source offset is invalid
 A5h	destination handle is invalid
 A6h	destination offset is invalid
 A7h	length is invalid
 A8h	move has an invalid overlap
 A9h	parity error occurred
 AAh	block is not locked
 ABh	block is locked
 ACh	block lock count overflowed
 ADh	lock failed
 B0h	only a smaller UMB is available
 B1h	no UMB's are available
 B2h	UMB segment number is invalid

Format of EMM structure:
Offset	Size	Description	(Table 1495)
 00h	DWORD	number of bytes to move (must be even)
 04h	WORD	source handle
 06h	DWORD	offset into source block
 0Ah	WORD	destination handle
 0Ch	DWORD	offset into destination block
Notes:	if source and destination overlap, only forward moves (source base
	  less than destination base) are guaranteed to work properly
	if either handle is zero, the corresponding offset is interpreted
	  as a real-mode address referring to memory directly addressable
	  by the processor

Format of XMS handle info [array]:
Offset	Size	Description	(Table 1496)
 00h	BYTE	handle
 01h	BYTE	lock count
 02h	DWORD	handle size
 06h	DWORD	handle physical address (only valid if lock count nonzero)
SeeAlso: #1466
--------m-2F4310-----------------------------
INT 2F - Cloaking - REAL-MODE API
	AX = 4310h
Return: ES:BX -> driver entry point (see #1468,#1497,#1498,#1499,#1500)
SeeAlso: AX=4310h"XMS"

(Table 1497)
Call the Cloaking v1.01 "Client Registration" function with:
	AH = 7Eh
	BX = subfunction
	    0000h get client registration count
	    0001h get client registration structures
		ES:DI -> buffer for registration structures
Return: AX = status
	    0000h failed
	    0001h successful
		---subfunction 00h---
		BX = size of client structure in bytes
		CX = number of clients installed
		---subfunction 01h---
		ES:DI buffer filled
SeeAlso: #1498,#1500,INT 2C/AX=0033h

(Table 1498)
Call the Cloaking v1.01 "Verify Cloaking Host" function with:
	AH = 7Fh
Return: AX = status
	    0000h failed
	    0001h (successful) if installed
		BX = version (0101h for v1.01)
		CX = flags
		    bit 0: host is VCPI-based
		DS:DX -> ASCIZ Cloaking host signature
		    "CLOAKING.EXE"0, followed by a far-call entry point to
		      uninstall host (see #1499) in Helix's CLOAKING.EXE
SeeAlso: #1497,#1500
Index:	installation check;Cloaking host|installation check;CLOAKING.EXE

(Table 1499)
Call the CLOAKING.EXE "Uninstall Host" function with:
Return:	AX = 4F4Bh ('OK') if successfully uninstalled protected-mode code

(Table 1500)
Call the Cloaking "Start Protected-Mode Client" function with:
	AH = 82h
	DX = XMS handle of locked block containing protected-mode code
	CL = code size (00h 16-bit, else 32-bit)
	ESI, EDI = parameters to pass to protected-mode code
Return: AX = status
	    nonzero success
	    0000h failed
		BL = error code (A2h,B0h) (see #1494)
Notes:	this function calls a user initialization function at offset 0 in
	  the XMS memory block (see #1501)
	supported by Helix's RM386 v6.00 and Helix's CLOAKING.EXE
SeeAlso: #1497,#1498

(Table 1501)
Values user initialization function is called with:
	EBX = physical address of block's start
	ESI = user data from function 82h call
	EDI = user data from function 82h call
	CS = code selector for XMS block at EBX (16-bit or 32-bit)	
	DS = data selector for XMS block, starting at EBX
	ES = selector for V86 memory access to full real-mode 1088K
	GS = selector for full 4G flat address space
	SS:ESP -> stack provided by host
Return: via 32-bit FAR return
Note:	the initialization function may call any protected-mode Cloaking
	  service; it should store the values of DS, ES, and GS for future
	  reference
--------m-2F4310-----------------------------
INT 2F - Helix Netroom RM386 v6.00 - XMS EXTENSIONS
	AX = 4310h
Return: ES:BX -> driver entry point (see #1502,#1503,#1504,#1505)
Notes:	HIMEM.SYS v2.77 chains to previous handler if AH is not 00h or 10h
	HIMEM.SYS requires at least 256 bytes free stack space when calling
	  the driver entry point
SeeAlso: AX=4300h,AX=4310h"XMS",AX=4310h"Cloaking"

(Table 1502)
Call the Netroom RM386 v6.00 "Reallocate upper memory block" function with:
	AH = 80h
	DX = segment address of UMB to resize
	BX = new size of block in paragraphs
Return: AX = status
	    0001h success
	    0000h failure
		BL = error code (80h,B0h,B2h) (see #1494)
		DX = maximum available size
Note:	this function is identical to function 12h
SeeAlso: #1487,#1503

(Table 1503)
Call the Netroom RM386 v6.00 "re-enable HMA allocation" function with:
	AH = 81h
Return: AX = 0001h (success)
SeeAlso: #1470,#1502,#1504

(Table 1504)
Call the Netroom RM386 v6.00 "Create new UMB entry" function with:
	AH = 83h
	BX = segment of high-memory block
	DX = first page of start of block
	CX = number of consecutive pages in block
	DI = start of UMB in block
Return: AX = 0001h (success)
	DI = segment of first high-DOS block
Note:	the new UMB is not linked into the high-memory chain
SeeAlso: #1485,#1503,#1505

(Table 1505)
Call the Netroom RM386 v6.00 "Get all XMS handles info" function with:
	AH = 84h
	CX = size of buffer for handle info
	ES:DI -> buffer for handle info (see #1496)
Return: AX = 0001h (success)
	DX = current number of allocated XMS handles
SeeAlso: #1504,#1490
--------m-2F4320-----------------------------
INT 2F U - HIMEM.SYS - Mach 20 SUPPORT
	AX = 4320h
	???
Return: ???
--------m-2F4330-----------------------------
INT 2F CU - HIMEM.SYS v2.77+ - GET EXTERNAL A20 HANDLER ADDRESS
	AX = 4330h
Return: AL = 80h if external A20 handler provided
	    ES:BX -> external A20 handler (see #1506)
	    CL = A20 detection support
		00h handler is unable to report A20 state
		01h handler supports function 0002h to report A20 state
Note:	HIMEM.SYS calls this function to allow an external program to provide
	  an A20 handler (i.e. to support a machine not supported by HIMEM
	  itself)
SeeAlso: AX=4308h,AX=4310h

(Table 1506)
Call parameters for external A20 handler are:
	AX = function
	    0000h disable A20
	    0001h enable A20
	    0002h get A20 state
Return: AX = status (functions 0000h and 0001h)
		 0000h failure
	    0001h successful
	AX = A20 state (function 0002h)
	    0000h disabled
	    0001h enabled
Note:	HIMEM.SYS only calls function 0002h if the returned CL indicated that
	  the handler supports the call
--------E-2F43E0BX0000-----------------------
INT 2F - DOS Protected Mode Services (DPMS) v1.0 - INSTALLATION CHECK
	AX = 43E0h
	BX = 0000h
	CX = 4450h ('DP')
	DX = 4D53h ('MS')
Return: AX = 0000h if installed
	    CF clear
	    ES:DI -> server structure (see #1507)
	    ES:BX -> registration structure (pre-NWDOS 7 beta spec) (see #1509)
Note:	the DPMS 1.0 server included with the original release of Novell DOS
	  7.0 supports both the beta and 1.0 specification, setting ES:BX even
	  if CX and DX are not as specified on entry (since the beta
	  specification did not use those registers).  However, the DPMS 1.1
	  server included with the March 1994 update does not support the beta
	  specification
SeeAlso: AX=43E1h,AX=43E2h,AX=43E3h,INT 2F/AX=1687h
Index:	signature strings;DPMS

Format of DPMS 1.0 server structure:
Offset	Size	Description	(Table 1507)
 00h  4 BYTEs	signature string "DPMS"
 04h  2 BYTEs	DPMS version (major,minor)
 06h  8 BYTEs	blank-padded server OEM name
 0Eh  2 BYTEs	OEM server version (major,minor)
 10h	WORD	DPMS flags (see #1508)
 12h	BYTE	CPU type
		(02h = 286, 03h = 386 or higher, higher values allowed)

Bitfields for DPMS flags:
Bit(s)	Description	(Table 1508)
 0	fast processor reset available (286 only)
 1	DPMS server is enabled
 2	memory is remapped
 3-15	reserved (undefined)

Format of beta DPMS registration structure:
Offset	Size	Description	(Table 1509)
 00h	DWORD	real-mode API entry point (see #1511)
 04h	DWORD	16-bit protected-mode API entry point (see #1511)
 08h  8 BYTEs	reserved (0)
 10h  8 BYTEs	blank-padded server OEM name
 18h	WORD	flags
		bit 0: fast processor reset available (286 only)
		bits 1-15 reserved (undefined)
 1Ah  2 BYTEs	DPMS version (major,minor)
 1Ch	BYTE	CPU type (02h = 286, 03h = 386 or higher)
----------2F43E1-----------------------------
INT 2F - DOS Protected Mode Services (DPMS) v1.0 - REGISTER CLIENT
	AX = 43E1h
	CX = required protected-mode stack size in bytes
	ES:DI -> DPMS client interface structure (see #1510)
Return: AX = 0000h if supported
	   CF clear
	   ES:DI buffer filled with API entry point code from offset 0Ah
Note:	the client is allowed to copy the returned API code to any location in
	  memory, and need not keep the three code fields together
SeeAlso: AX=43E0h,AX=43E2h,AX=43E3h

Format of DPMS client interface structure:
Offset	Size	Description	(Table 1510)
 00h	WORD	0000h (structure version / flags)
 02h  8 BYTEs	blank-padded client name
 0Ah  7 BYTEs	real/virtual-86 mode API code (see #1511)
 11h	BYTE	space for return instruction
		set to C3h for near return, CBh for far return
 12h  7 BYTEs	16-bit protected-mode API code (see #1511)
 19h	BYTE	space for return instruction
		set to C3h for near return, CBh for far return
 1Ah  9 BYTEs	32-bit protected-mode API code (see #1511)
 23h	BYTE	space for return instruction
		set to C3h for near return, CBh for far return
Note:	the DPMS server fills the return opcode bytes with zeros and DPMS
	  requests will thus crash the system unless the application
	  explicitly sets them (some early versions set them to C3h by
	  default, but one should not rely on that)

(Table 1511)
Call DPMS entry point with:
	AX = 0000h unregister client from server
 ---control transfer functions---
	AX = 0100h call protected-mode procedure
		CX = number of words of stack to copy
		ES:(E)DI -> callup/down register structure (see #1513)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0101h call real-mode procedure (RETF return)
		CX = number of words of stack to copy
		ES:(E)DI -> callup/down register structure (see #1513)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0102h call real-mode procedure (IRET return)
		CX = number of words of stack to copy
		ES:(E)DI -> callup/down register structure (see #1513)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0103h call real-mode interrupt handler
		BL = interrupt number
		CX = number of words of stack to copy
		ES:(E)DI -> callup/down register structure (see #1513)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0104h register default protected mode procedure
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0105h register default real-mode procedure (RETF return)
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
		Note:	the procedure will be called from 16-bit prot. mode
	AX = 0106h register default real-mode procedure (IRET return)
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
		Note:	the procedure will be called from 16-bit prot. mode
	AX = 0107h register default real-mode interrupt handler
		BL = interrupt number
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
		Note:	the handler will be called from 16-bit protected mode
	AX = 0108h register default real-mode procedure (RETF return)
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
		Note:	the procedure will be called from 32-bit prot. mode
	AX = 0109h register default real-mode procedure (IRET return)
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
		Note:	the procedure will be called from 32-bit prot. mode
	AX = 010Ah register default real-mode interrupt handler
		BL = interrupt number
		ES:(E)DI -> default register structure (see #1514)
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
		Note:	the handler will be called from 32-bit protected mode
 ---descriptor management---
	AX = 0200h allocate descriptors
		CX = number of descriptors to allocate
		Return: CF clear if successful
			    AX = selector for first descriptor allocated
			CF set on error
			    AX = error code (see #1512)
	AX = 0201h free a descriptor
		BX = selector for descriptor
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0202h create alias descriptor
		BX = selector for descriptor to be aliased
		Return: CF clear if successful
			    AX = alias descriptor
			CF set on error
			    AX = error code (see #1512)
	AX = 0203h build alias to real-mode segment
		BX = descriptor
		CX = real-mode segment
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0204h set descriptor base
		BX = descriptor
		CX:DX = base address
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0205h set descriptor limit
		BX = descriptor
		CX = limit
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0206h set descriptor type/attribute
		BX = descriptor
		CL = type
		CH = attribute
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0207h get descriptor base
		BX = descriptor
		Return: CF clear if successful
			    CX:DX = base address
			CF set on error
			    AX = error code (see #1512)
 ---linear memory functions---
	AX = 0300h get size of largest free block of memory
		Return: CF clear if successful
			    BX:CX = size
			CF set on error
			    AX = error code (see #1512)
	AX = 0301h allocate block of extended memory
		BX:CX = required size
		Return: CF clear if successful
			    BX:CX = base address
			    SI:DI = handle
			CF set on error
			    AX = error code (see #1512)
	AX = 0302h free block of extended memory
		SI:DI = handle
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0303h map linear memory
		ES:(E)DI -> DDS (see #1515)
		Return: CF clear if successful
			    BX:CX = base address
			    SI:DI = handle
			CF set on error
			    AX = error code (see #1512)
	AX = 0304h unmap linear memory
		SI:DI = handle
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0305h get page table entries
		ESI = linear address
		(E)CX = count
		ES:(E)DI -> buffer for page table entries
		Return: CF clear if successful
			    ES:(E)DI buffer filled
			CF set on error
			    AX = error code (see #1512)
	AX = 0306h set page table entries
		EBX = linear memory handle
		ESI = linear address
		(E)CX = count
		ES:(E)DI -> buffer containing page table entries
		Return: CF clear if successful
			CF set on error
			    AX = error code (see #1512)
	AX = 0307h get largest mappable block size
		Return: CF clear if successful
				 BX:CX = size
			CF set on error
			    AX = error code (see #1512)
 ---miscellaneous---
	AX = 0400h relocate segment to extended memory
		ES:SI = base address
		CX = limit
		BL = type
		BH = attribute
		DX = selector or 0000h
		Return: CF clear if successful
			    AX = selector
			    BX:CX = new base address
			    SI:DI = handle
			CF set on error
			    AX = error code (see #1512)
Note:	the beta DPMS specification, which is still supported by the Novell
	  DOS 7.0 DPMS host, only supported functions 0100h-0103h, 0200h-0207h,
	  0300h-0304h, and 0400h

(Table 1512)
Values for DPMS error code:
 8000h	general error
 8001h	unsupported function
 8002h	unable to switch to protected mode
 8004h	no default stack defined
 8005h	unknown client
 8010h	resource unavailable
 8011h	descriptor unavailable
 8012h	linear memory unavailable
 8013h	physical memory unavailable
 8021h	invalid value
 8022h	invalid selector
 8023h	invalid handle
 8025h	invalid linear address

Format of DPMS callup/down register structure:
Offset	Size	Description	(Table 1513)
 00h	DWORD	EDI
 04h	DWORD	ESI
 08h	DWORD	EBP
 0Ch  4 BYTEs	reserved (0) (ESP, may be used by DPMS server)
 10h	DWORD	EBX
 14h	DWORD	EDX
 18h	DWORD	ECX
 20h	DWORD	EAX
 24h	DWORD	EIP
 28h	WORD	CS
 2Ah  2 BYTEs	reserved (0)
 2Ch	DWORD	EFLAGS
 30h	DWORD	ESP
 34h	WORD	SS
 36h  2 BYTEs	reserved (0)
 38h	WORD	ES
 3Ah  2 BYTEs	reserved (0)
 3Ch	WORD	DS
 3Eh  2 BYTEs	reserved (0)
 40h	WORD	FS
 42h  2 BYTEs	reserved (0)
 44h	WORD	GS
 46h  2 BYTEs	reserved (0)

Format of DPMS default register structure:
Offset	Size	Description	(Table 1514)
 00h	DWORD	EIP
 04h	WORD	CS
 06h  2 BYTEs	reserved (0)
 08h	WORD	number of words to copy from stack to stack
 0Ah	BYTE	(call) 00h
		(ret) nonzero if call could not be made
 0Bh	BYTE	reserved (may be used by some servers)
 0Ch	DWORD	ESP
 10h	WORD	SS
 12h  2 BYTEs	reserved (0)
 14h	WORD	ES
 16h  2 BYTEs	reserved (0)
 18h	WORD	DS
 1Ah  2 BYTEs	reserved (0)
 1Ch	WORD	FS
 1Eh  2 BYTEs	reserved (0)
 20h	WORD	GS
 22h  2 BYTEs	reserved (0)
 24h  9 BYTEs	API entry code (filled in by server)

Format of DPMS lock DDS:
Offset	Size	Description	(Table 1515)
 00h	DWORD	total size in bytes
 04h	DWORD	offset
 08h	WORD	segment or selector
 0Ah	WORD	reserved
 0Ch	WORD	maximum number of physical blocks structure has space for
 0Eh	WORD	number of physical blocks listed
 10h	DWORD	physical address of first block
 14h	DWORD	size in bytes of first block
	...
----------2F43E2-----------------------------
INT 2F - DOS Protected Mode Services (DPMS) v1.0 - ENABLE/DISABLE DPMS
	AX = 43E2h
	BX = new state (0000h disable, 0001h enable)
Return: AX = 0000h if supported
Note:	this function should normally be called only by system software
SeeAlso: AX=43E0h,AX=43E1h,AX=43E3h
----------2F43E3BX0000-----------------------
INT 2F - DOS Protected Mode Services (DPMS) v1.0 - DPMS STARTUP BROADCAST
	AX = 43E3h
	BX = 0000h
	CX = 4450h ('DP')
	DX = 4D53h ('MS')
SeeAlso: AX=43E0h,AX=43E4h 
----------2F43E4BX0000-----------------------
INT 2F - DOS Protected Mode Services (DPMS) v1.0 - DPMS EXIT BROADCAST
	AX = 43E4h
	BX = 0000h
	CX = 4450h ('DP')
	DX = 4D53h ('MS')
SeeAlso: AX=43E0h,AX=43E3h
--------E-2F44-------------------------------
INT 2F U - DOS Extender support???
	AH = 44h
	AL = function (at least 0Bh, 15h, 17h)
	???
Return: ???
Note:	called by Codeview for Windows
SeeAlso: AH=86h
--------G-2F4500-----------------------------
INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - INSTALLATION CHECK
	AX = 4500h
Return: AL = installation status
	    01h if PROF.COM installed
	    02h if VPROD.386 installed
SeeAlso: AX=4501h,AX=4502h
--------G-2F4501-----------------------------
INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - SETUP PROFILER
	AX = 4501h
	BX = CSIPS buffer size in KB (first parameter for ProfSetup)
	CX = output limit in KB (second parameter for ProfSetup)
Note:	this call is not supported by PROF.COM
SeeAlso: AX=4502h,AX=4503h
--------G-2F4502-----------------------------
INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - SET SAMPLING RATE
	AX = 4502h
	BL = sampling rate for PROF.COM (0 < bl=""><= 13)="" (01h="8192/s," 04h="1024/s," 08h="32/s," 0dh="1/s)" cx="sampling" rate="" for="" vprod.386="" note:="" for="" prof.com,="" this="" programs="" the="" cmos="" clock="" by="" setting="" bl+2="" as="" the="" low="" four="" bits="" of="" cmos="" register="" 0ah.="" the="" interruption="" rate="" is="" 1="" shl="" (15="" -="" bl)="" per="" second.="" seealso:="" ax="4501h,AX=4503h" --------g-2f4503-----------------------------="" int="" 2f="" u="" -="" microsoft="" profiler="" (prof.com/vprod.386)="" -="" start="" profiling="" ax="4503h" notes:="" profiling="" is="" also="" turned="" on="" by="" the="" key="" combinations="" leftshift="" +="" rightshift="" +="" alt="" and="" leftshift="" +="" rightshift="" +="" ctrl="" for="" prof.com,="" this="" call="" programs="" the="" cmos="" clock="" by="" reading="" register="" 0ch,="" and="" setting="" bit="" 6="" of="" register="" 0bh.="" it="" then="" makes="" sure="" that="" irq8="" is="" unmasked="" seealso:="" ax="4504h" --------g-2f4504-----------------------------="" int="" 2f="" u="" -="" microsoft="" profiler="" (prof.com/vprod.386)="" -="" stop="" profiling="" ax="4504h" notes:="" profiling="" is="" also="" turned="" off="" by="" the="" key="" combination="" leftshift="" +="" rightshift="" for="" prof.com,="" this="" programs="" the="" cmos="" clock="" by="" reading="" register="" 0ch="" and="" clearing="" bit="" 6="" of="" register="" 0bh.="" it="" then="" masks="" irq8.="" seealso:="" ax="4503h,AX=4505h,AX=4506h,AX=4507h" --------g-2f4505-----------------------------="" int="" 2f="" u="" -="" microsoft="" profiler="" (prof.com/vprod.386)="" -="" clear="" profiling="" data="" ax="4505h" seealso:="" ax="4503h,AX=4504h,AX=4506h" --------g-2f4506-----------------------------="" int="" 2f="" u="" -="" microsoft="" profiler="" (prof.com/vprod.386)="" -="" "profflush"="" ax="4506h" seealso:="" ax="4505h,AX=4507h" --------g-2f4507-----------------------------="" int="" 2f="" u="" -="" microsoft="" profiler="" (prof.com/vprod.386)="" -="" "proffinish"="" ax="4507h" note:="" this="" call="" is="" essentially="" a="" "profstop"="" (ax="4504h)" followed="" by="" "profflush"="" (ax="4506h)" seealso:="" ax="4504h,AX=4505h,AX=4506h" --------g-2f4508-----------------------------="" int="" 2f="" u="" -="" microsoft="" profiler="" (prof.com/vprod.386)="" -="" alternate="" segdebug="" iface="" ax="4508h" bx="ordinal" (or="" 0000h)="" cx="segment" dx="instance" (or="" 0000h)="" si="type" (or="" 0000h)="" es:di="" -=""> ASCIZ module name
Notes:	this call is an alternate entry to the profiler's SEGDEBUG
	  interface, but only to function 0, for notifying the profiler of
	  each new segment loaded.  The SHOWHITS utility then examines the
	  profiler's output files (CSIPS.DAT and SEGENTRY.DAT) in conjunction
	  with symbol files to provide information in a useful form.
	this call does not have a corresponding Windows function
SeeAlso: AX=4500h
--------D-2F4601-----------------------------
INT 2F CU - MS Windows WINOLDAP - SWITCHING ???
	AX = 4601h
Return: ???
Note:	the DOS 5+ kernel intercepts this function and copies the MCB
	   following the caller's PSP memory block into the DOS data segment;
	   in conjunction with AX=4602h, this intercept is used by DOS to
	   avoid corruption of the Windows real-mode heap's end sentinel
SeeAlso: AX=1700h,AX=4602h
--------D-2F4602-----------------------------
INT 2F CU - MS Windows WINOLDAP - SWITCHING ???
	AX = 4602h
Return: ???
Note:	the DOS 5+ kernel intercepts this function and copies the
	  previously-saved MCB from the DOS data segment into the MCB following
	  the caller's PSP memory block; in conjunction with AX=4601h, this
	  intercept is used by DOS to avoid corruption of the Windows real-mode
	  heap's end sentinel
SeeAlso: AX=1700h,AX=4601h
--------E-2F46-------------------------------
INT 2F U - Windows/286 DOS Extender
	AH = 46h
	AL = subfunction (03h,04h)
Return: ???
Note:	these two subfunctions are called by MS Windows 3.0
--------v-2F4653CX0002-----------------------
INT 2F - F-PROT v1.x only - F-LOCK.EXE - API
	AX = 4653h
	CX = 0002h
	BX = subfunction
	    0000h  installation check
		Return: AX = FFFFh
	    0001h  uninstall
		Return: AX,BX,ES destroyed
	    0002h  disable (v1.08 and below only)
	    0003h  enable (v1.08 and below only)
Program: F-LOCK is part of the shareware F-PROT virus/trojan protection
	  package by Fridrik Skulason
SeeAlso: AX=4653h/CX=0003h,AX=CA00h,INT 21/AX=4BEEh
Index:	installation check;F-LOCK|uninstall;F-LOCK
--------v-2F4653CX0003-----------------------
INT 2F - F-PROT v1.x only - F-XCHK.EXE - API
	AX = 4653h
	CX = 0003h
	BX = subfunction
	    0000h  installation check
		Return: AX = FFFFh
	    0001h  uninstall
		Return: AX,BX,ES destroyed
Program: F-XCHK is part of the shareware F-PROT virus/trojan protection
	  package by Fridrik Skulason
SeeAlso: AX=4653h/CX=0002h,AX=4653h/CX=0004h,AX=CA00h
Index:	installation check;F-XCHK|uninstall;F-XCHK
--------v-2F4653CX0004-----------------------
INT 2F - F-PROT v1.x only - F-POPUP.EXE - API
	AX = 4653h
	CX = 0004h
	BX = subfunction
	    0000h  installation check
		Return: AX = FFFFh
	    0001h  uninstall
		Return: AX,BX,ES destroyed
	    0002h  disable (v1.08 and below only)
		   display message (v1.14+)
			other registers: ???
	    0003h  enable (v1.08 and below only)
		   display message (v1.14+)
			other registers: ???
			Return: AX = key pressed by user
Program: F-POPUP is part of the shareware F-PROT virus/trojan protection
	  package by Fridrik Skulason
SeeAlso: AX=4653h/CX=0003h,AX=4653h/CX=0005h,AX=CA00h
Index:	installation check;F-POPUP|uninstall;F-POPUP
--------v-2F4653CX0005-----------------------
INT 2F - F-PROT v1.x only - F-DLOCK.EXE - API
	AX = 4653h
	CX = 0005h
	BX = subfunction
	    0000h installation check
		Return: AX = FFFFh
	    0001h uninstall
		Return: AX,BX,ES destroyed
Program: F-DLOCK is part of the shareware F-PROT virus/trojan protection
	  package by Fridrik Skulason
SeeAlso: AX=4653h/CX=0004h,AX=CA00h
Index:	installation check;F-DLOCK|uninstall;F-DLOCK
--------W-2F4680-----------------------------
INT 2F U - MS Windows v3.0 - INSTALLATION CHECK
	AX = 4680h
Return: AX = result
	    0000h MS Windows 3.0 running in real (/R) or standard (/S) mode,
		  or DOS 5 DOSSHELL active
	    nonzero  no Windows, Windows prior to 3.0, or Windows3 in enhanced
		  mode
Note:	Windows 3.1 finally provides an installation check which works in all
	  modes (see AX=160Ah)
SeeAlso: AX=1600h,AX=160Ah
----------2F47-------------------------------
INT 2F U - ???
	AH = 47h
	???
Return: ???
Note:	reportedly called by Microsoft BASIC Compiler v7.0
--------K-2F4800-----------------------------
INT 2F - DOS 5+ DOSKEY - INSTALLATION CHECK
	AX = 4800h
Return: AL = nonzero if installed (DOS 5.0 and 6.0 return AX=AA02h)
	    ES = segment of DOSKEY resident portion
Note:	DOSKEY chains if AL is not 00h or 10h on entry
SeeAlso: AX=4800h"PCED",AX=4810h
--------K-2F4800-----------------------------
INT 2F - PCED v2.1 - INSTALLATION CHECK
	AX = 4800h
Return: AX = AACDh if installed
	    ES = segment of PCED kernel (PCED has multiple code segments)
Program: PCED v2.1 is a command line editor/history/macro facility by
	  Cove Software.  It is the commercial version of the freeware CED.
Notes:	DOSKEY also responds to this call if installed, returning AX=AA02h.
	unlike DOSKEY, PCED does *not* chain if AL contains an
	  unsupported function code.  It IRETs with all registers intact.
--------K-2F4810-----------------------------
INT 2F - DOS 5+ DOSKEY, PCED v2.1 - READ INPUT LINE FROM CONSOLE
	AX = 4810h
	DS:DX -> line buffer (see #0573 at INT 21/AH=0Ah)
Return: AX = 0000h if successful
Notes:	the first byte (length) of the buffer MUST be 80h, or DOSKEY chains to
	  the previous handler; PCED allows sizes other than 80h
	if the user's input is a macro name, no text is placed in the buffer
	  even though AX=0000h on return; the program must immediately issue
	  this call again to retrieve the expansion of the macro.  Similarly,
	  if the user enters a special parameter such as $*, this call must
	  be repeated to retrieve the expansion; on the second call, DOSKEY
	  overwrites the macro name on the screen with its expansion.
	unlike DOSKEY, PCED expands all macros on the first call, so it is
	  not necessary to make two calls; since the buffer is not empty on
	  return, DOSKEY-aware programs will not make the second call
	DOSKEY chains if AL is not 00h or 10h on entry
SeeAlso: AX=4800h,INT 21/AH=0Ah
--------K-2F48C0-----------------------------
INT 2F - PCED v2.1 - PCED API
	AX = 48C0h
	DX = API function code
	other registers as required by the specified function
Return: CF clear if successful
	CF set on error
	    AX = PCED error code
	other registers as appropriate for API function
Program: PCED v2.1 is a command line editor/history/macro facility by
	  Cove Software.  It is the commercial version of the freeware CED.
Note:	the full API information is available from Cove Software
SeeAlso: AX=4800h"PCED",AX=48C1h,AX=48C2h,AX=48C3h
----------2F48C1BL00-------------------------
INT 2F - PCED/VSTACK - INSTALLATION CHECK
	AX = 48C1h
	BL = 00h
Return: AX = 0000h if installed
	    BX = VSTACK resident segment
Program: VSTACK is a resident backscroll utility included as part of the PCED
	  package by Cove Software
Note:	chains if BL <> 00h on entry
SeeAlso: AX=48C0h,AX=48C2h
----------2F48C2BL00-------------------------
INT 2F - PCED/ATTRIB - INSTALLATION CHECK
	AX = 48C2h
	BL = 00h
Return: AX = 0000h if installed
	    BX = ATTRIB resident segment
Program: ATTRIB is a resident file attribute changer included as part of the
	  PCED package by Cove Software
Note:	chains if BL <> 00h on entry
SeeAlso: AX=48C0h,AX=48C1h,AX=48C3h
--------K-2F48C3BL00-------------------------
INT 2F - PCED/KEYDEF - INSTALLATION CHECK
	AX = 48C3h
	BL = 00h
Return: AX = 0000h if installed
	    BX = KEYDEF resident segment
Program: KEYDEF is a resident keyboard redefinition utility included as part
	  of the PCED package by Cove Software
Note:	chains if BL <> 00h on entry
SeeAlso: AX=48C0h,AX=48C2h,AX=48C4h
----------2F48C4BL00-------------------------
INT 2F - PCED/FLIST - INSTALLATION CHECK
	AX = 48C4h
	BL = 00h
Return: AX = 0000h if installed
	    BX = FLIST resident segment
Program: FLIST is a resident filelist processor included as part of the PCED
	  package by Cove Software
Note:	chains if BL <> 00h on entry
SeeAlso: AX=48C0h,AX=48C3h,AX=48C5h
----------2F48C5BL00-------------------------
INT 2F - PCED/ASSOC - INSTALLATION CHECK
	AX = 48C5h
	BL = 00h
Return: AX = 0000h if installed
	    BX = ASSOC resident segment
Program: ASSOC is a resident utility included as part of the PCED package which
	  associated files with executable programs based on their extensions
Note:	chains if BL > 02h on entry
SeeAlso: AX=48C0h,AX=48C4h,AX=48C5h/BL=01h,AX=48C5h/BL=02h
----------2F48C5BL01-------------------------
INT 2F - PCED/ASSOC - VERSION CHECK
	AX = 48C5h
	BL = 01h
Return: AX = 0000h if installed
	    BX = binary ASSOC version (BL = major, BH = minor)
Note:	chains if BL > 02h on entry
SeeAlso: AX=48C0h,AX=48C5h/BL=00h,AX=48C5h/BL=02h
----------2F48C5BL02-------------------------
INT 2F - PCED/ASSOC - ASSOCIATION TEST
	AX = 48C5h
	BL = 02h
	DS:SI -> ASCIZ filename
Return: AX = status
	    0000h if filename is unknown
	    0001h if there is an association defined for the file
	BX destroyed
Program: ASSOC is a resident utility included as part of the PCED package which
	  associated files with executable programs based on their extensions
Note:	chains if BL > 02h on entry
SeeAlso: AX=48C0h,AX=48C5h/BL=00h,AX=48C5h/BL=01h
----------2F49-------------------------------
INT 2F U - ???
	AH = 49h
	???
Return: ???
Note:	reportedly called by DOS 5.0 installation
--------D-2F4A00CX0000-----------------------
INT 2F CU - DOS 5+ - FLOPPY-DISK LOGICAL DRIVE CHANGE NOTIFICATION
	AX = 4A00h
	CX = 0000h
	DH = new drive number
	DL = current drive number
Return: CX = FFFFh to skip "Insert diskette for drive X:" message
Note:	called by MS-DOS 5.0+ IO.SYS just before displaying the message
	  "Insert diskette for drive X:" on single-floppy systems
--------D-2F4A01-----------------------------
INT 2F - DOS 5+ - QUERY FREE HMA SPACE
	AX = 4A01h
Return: BX = number of bytes available in HMA (0000h if DOS not using HMA)
	ES:DI -> start of available HMA area (FFFFh:FFFFh if not using HMA)
Note:	called by Windows 3.1 DOSX.EXE
SeeAlso: AX=4310h,AX=4A02h
--------D-2F4A02-----------------------------
INT 2F - DOS 5+ - ALLOCATE HMA SPACE
	AX = 4A02h
	BX = number of bytes
Return: ES:DI -> start of allocated HMA block or FFFFh:FFFFh
	BX = number of bytes actually allocated (rounded up to next paragraph
	      for DOS 5.0 and 6.0)
Notes:	this call is not valid unless DOS is loaded in the HMA (DOS=HIGH)
	called by Windows 3.1 DOSX.EXE
SeeAlso: AX=4A01h
--------T-2F4A05-----------------------------
INT 2F U - DOS 5+ DOSSHELL - TASK SWITCHING API???
	AX = 4A05h
	SI = function
	    0000h reset???
	    0001h ???
		ES:BP -> 80-byte buffer containing ???
	    0002h ???
	    0003h ???
	    0004h ???
		BL = ???
	    0005h ???
		 0006h get ???
		Return: ES:SI -> ???
	    0007h get ???
		Return: AX = ???
	    0008h get ???
		Return: DX:AX -> ??? (internal control data of some kind)
	    0009h get ???
		Return: ES:SI -> ??? (apparently identical to function 0006h)
	    000Ah ???
		BL = length of buffer
		ES:BP -> buffer containing ???
	    000Bh get ???
		Return: AX = ???
	    000Ch ???
		BL = ???
		Return: if BL nonzero on entry
			    DX:AX -> ???
			if BL = 00h on entry
			    ES:SI -> ???
Notes:	DOSSHELL chains to the previous handler if SI is not one of the values
	  listed above
	the DOSSWAP.EXE module calls functions 03h,04h,05h,07h,08h,09h,0Ch
	the Windows 3.1 DSWAP.EXE and WSWAP.EXE task switchers use these calls
SeeAlso: AX=4B01h
--------D-2F4A06-----------------------------
INT 2F CU - DOS 5+ - DOS SUPERVISOR "REBOOT PANEL" - ADJUST MEMORY SIZE
	AX = 4A06h
	DX = segment following last byte of conventional memory
Return: DX = segment following last byte of memory available for use by DOS
Desc:	used to override the default memory size when booting diskless
	  workstations
Notes:	called by MS-DOS 5+ IO.SYS startup code if the signature "RPL" is
	  present three bytes beyond the INT 2F handler; this call overrides
	  the value returned by INT 12
	hooked by RPL code at the top of memory to protect itself from being
	  overwritten; DOS builds a memory block with owner = 0008h and name
	  "RPL" which must be freed by the RPL code when it is done
SeeAlso: INT 12,INT 18
--------N-2F4A07-----------------------------
INT 2F U - RESERVED FOR PROTMAN SUPPORT
	AX = 4A07h
	???
Return: ???
--------c-2F4A10BX0000-----------------------
INT 2F - SMARTDRV v4.00+ - INSTALLATION CHECK AND HIT RATIOS
	AX = 4A10h
	BX = 0000h
	CX = EBABh (v4.1+; see Note)
Return: AX = BABEh if installed
	    DX:BX = cache hits
	    DI:SI = cache misses
	    CX = number of dirty cache elements
	    BP = version in BCD (4.10 = 0410h)
Notes:	most of the SMARTDRV API, including this call, is supported by
	  PC-Cache v8.0 and recent versions of the Norton Caches
	if DBLSPACE.BIN is installed but SMARTDRV has not yet been installed,
	  then calls of this function with CX<>EBABh on entry cause
	  DBLSPACE.BIN to display the error message
	  "Cannot run SMARTDrive 4.0 with DoubleSpace" and abort the caller
	  with INT 21/AX=4C00h
	SMARTDRV v3.x had a completely different API using IOCTL calls, which
	  was also supported by the Norton Caches
SeeAlso: AX=4A10h/BX=0001h,AX=4A10h/BX=0004h,AX=4A10h/BX=0005h
SeeAlso: AX=4A10h/BX=0007h,AX=4A10h/BX=1234h,AX=4A11h/BX=0000h
SeeAlso: INT 21/AX=4402h"SMARTDRV",INT 21/AX=4403h"SMARTDRV"
----------2F4A10BX0000-----------------------
INT 2F U - Novell NWCACHE - ???
	AX = 4A10h
	BX = 0000h
	CX = 0EDCh
Return: ???
SeeAlso: AX=4A10h/BX=0001h"NWCACHE"
--------c-2F4A10BX0001-----------------------
INT 2F - SMARTDRV v4.00+ - FLUSH BUFFERS (COMMIT CACHE)
	AX = 4A10h
	BX = 0001h
Note:	this function is also supported by PC-Cache v8.0.
SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0002h
----------2F4A10BX0001-----------------------
INT 2F U - Novell NWCACHE - ???
	AX = 4A10h
	BX = 0001h
	CX = 0EDCh
Return: ???
SeeAlso: AX=4A10h/BX=0000h"NWCACHE"
--------c-2F4A10BX0002-----------------------
INT 2F - SMARTDRV v4.00+ - RESET CACHE
	AX = 4A10h
	BX = 0002h
Note:	this function is also supported by PC-Cache v8.0.
SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0001h
--------c-2F4A10BX0003-----------------------
INT 2F - SMARTDRV v4.00+ - STATUS
	AX = 4A10h
	BX = 0003h
	BP = drive number (0=A, 1=B, etc.)
	DL = subfunction
	    00h only get information
	    01h turn on read cache
	    02h turn off read cache
	    03h turn on write cache
	    04h turn off write cache
Return: AX = BABEh if OK
	DL = status (see #1516)
	DL = FFh if drive does not exist
Notes:	If the read cache is off, reads will not be cached, but writes will
	  continue to be cached if the write-cache is enabled.
	this function is also supported by PC-Cache v8.0.
SeeAlso: AX=4A10h/BX=0000h

Bitfields for SMARTDRV status:
Bit(s)	Description	(Table 1516)
 7	not cached
 6	write-through (not write-cached)
 0-5	real drive number (0=A, 1=B...)
--------c-2F4A10BX0004-----------------------
INT 2F - SMARTDRV v4.00+ - GET CACHE SIZE
	AX = 4A10h
	BX = 0004h
Return: AX = size in elements of full-sized cache
	BX = current size in elements
	CX = size of one element in bytes
	DX = number of elements under Windows
Note:	this function is also supported by PC-Cache v8.0.
SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0003h,AX=4A10h/BX=0005h
--------c-2F4A10BX0005-----------------------
INT 2F - SMARTDRV v4.00+ - GET DOUBLE-BUFFER STATUS
	AX = 4A10h
	BX = 0005h
	BP = drive number (0=A, 1=B...)
Return: AX = BABEh if double-buffered
	    ES:DI -> 16-byte array of status bytes for fixed disks (see #1517)
SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0003h,AX=4A10h/BX=0006h

(Table 1517)
Values for SMARTDRV status byte:
 00h	state unknown
 FFh	drive double-buffered
 else	not double-buffered
--------c-2F4A10BX0006-----------------------
INT 2F CU - SMARTDRV v4.00+ - CHECK IF DRIVE CACHEABLE
	AX = 4A10h
	BX = 0006h
	CL = drive number (01h = A:)
Return: AX = 0006h if drive should not be cached by SMARTDRV
Note:	called by SMARTDRV at startup to determine whether it should cache
	  a particular drive
SeeAlso: AX=4A10h/BX=0000h
--------c-2F4A10BX0007-----------------------
INT 2F - SMARTDRV v4.00+ - GET DEVICE DRIVER FOR DRIVE
	AX = 4A10h
	BX = 0007h
	BP = drive number (00h=A:)
Return: DL = unit number within device driver
	ES:DI -> device driver header for drive
Note:	this function is also supported by PC-Cache v8.0.
	this call is reported to always return the driver header of the
	  standard block driver (A:-C:+) for SmartDrive v5.00 from MS-DOS 6.2
SeeAlso: AX=4A10h/BX=0000h,AX=4A11h/BX=0003h,AX=4A11h/BX=0004h
--------c-2F4A10BX0008-----------------------
INT 2F - SMARTDRV v4.20+ - GET/SET FLUSH BEFORE PROMPT, CD-ROM SUPPORT
	AX = 4A10h
	BX = 0008h
	DL = subfunction
	    00h set
		DH = new states
		    bit 0: flush before prompt
		    bits 1-7 reserved (0)
	    01h get
		Return: DH = status flags
			    bit 0: (v4.2+) flush before prompt
			    bit 1: (v5.0+) CD-ROM caching support installed
Note:	v4.2 was an interim release to fix problems in the SMARTDRV included
	  with MS-DOS 6.00; v5.00 is included with MS-DOS 6.2
--------c-2F4A10BX000A-----------------------
INT 2F - SMARTDRV v4.00+ - GET ELEMENT STATUS TABLE
	AX = 4A10h
	BX = 000Ah
Return: ES:BX -> information pointer table (see #1518)
Note:	this function is also supported by PC-Cache v8.0.
SeeAlso: AX=4A10h/BX=0000h

Format of SMARTDRV information pointer table:
Offset	Size	Description	(Table 1518)
 00h	WORD	offset of ??? byte/word array (byte if elements < 2000h="" bytes)="" 02h="" word="" offset="" of="" dirty="" flag="" byte/word="" array="" (byte="" if="" elts="">< 2000h)="" each="" byte/word="" is="" a="" bit="" string="" of="" the="" dirty="" sectors="" in="" element="" 04h="" word="" offset="" of="" word="" array="" containing="" low="" halves="" of="" unique="" identifiers="" for="" the="" corresponding="" element's="" contents="" 06h="" word="" offset="" of="" word="" array="" containing="" high="" halves="" of="" unique="" identifiers="" for="" the="" corresponding="" element's="" contents="" 08h="" word="" offset="" of="" word="" containing="" current="" number="" of="" elements="" in="" cache="" --------c-2f4a10bx1234-----------------------="" int="" 2f="" -="" smartdrv="" v4.00+="" -="" signal="" serious="" error="" ax="4A10h" bx="1234h" desc:="" this="" function="" pops="" up="" a="" message="" box="" saying="" that="" a="" serious="" error="" occurred="" and="" to="" hit="" r="" to="" retry,="" then="" waits="" for="" the="" keypress="" note:="" this="" function="" is="" also="" supported="" by="" pc-cache="" v8.0.="" seealso:="" ax="4A10h/BX=0000h" --------k-2f4a11bx0000-----------------------="" int="" 2f="" -="" dblspace.bin="" -="" "getversion"="" -="" installation="" check="" ax="4A11h" bx="0000h" return:="" ax="0000h" (successful)="" bx="444Dh" ("dm")="" cl="first" drive="" letter="" used="" by="" dblspace="" (41h="" ['a']="A:)" ch="number" of="" drive="" letters="" used="" by="" dblspace="" dx="internal" dblspace.bin="" version="" number="" (bits="" 14-0)="" bit="" 15="" set="" if="" dblspace.bin="" has="" not="" yet="" been="" relocated="" to="" final="" position="" in="" memory="" (i.e.="" dblspace.sys="" ove)="" program:="" dblspace.bin="" is="" the="" resident="" driver="" for="" doublespace,="" the="" disk-compression="" software="" bundled="" with="" ms-dos="" 6.0="" and="" 6.20="" notes:="" this="" function="" is="" also="" supported="" by="" the="" version="" of="" superstor="" bundled="" with="" ibm="" dos="" 6.x="" and="" "preloading"="" versions="" of="" stacker="" the="" complete="" dblspace.bin="" api="" is="" still="" supported="" by="" ms-dos="" 6.22's="" drvspace.bin="" seealso:="" ax="4A11h/BX=0001h,AX=4A11h/BX=0002h,AX=4A11h/BX=0003h" seealso:="" ax="4A11h/BX=0005h,AX=4A11h/BX=0007h,AX=4A11h/BX=FFFFh" seealso:="" int="" 21/ax="4404h" dblspace""="" --------k-2f4a11bx0001-----------------------="" int="" 2f="" -="" dblspace.bin="" -="" "getdrivemapping"="" -="" get="" drive="" mapping="" ax="4A11h" bx="0001h" dl="drive" number="" (0="A:)" return:="" ax="status" (see="" also="" #1519)="" 0000h="" successful="" if="" dl="" was="" compressed="" drive,="" bl="host" drive="" (bit="" 7="" set="" if="" drive="" is="" compressed)="" else="" if="" dl="" was="" host="" drive,="" bl="compressed" drive="" else="" bl="specified" drive="" (if="" available="" for="" doublespace)="" bh="DoubleSpace" sequence="" number="" other="" error="" code="" (0101h)="" (see="" #1519)="" apparently="" never="" returned="" for="" the="" ms-dos="" 6.2="" doublespace="" note:="" the="" compressed="" volume="" file="" for="" the="" specified="" compressed="" drive="" is="" host:\dblspace.sequence="" seealso:="" ax="4A11h/BX=0000h" (table="" 1519)="" values="" for="" dblspace="" function="" status:="" 0000h="" successful="" 0100h="" bad="" function="" 0101h="" invalid="" drive="" 0102h="" not="" a="" compressed="" drive="" 0103h="" drive="" already="" swapped="" 0104h="" drive="" not="" swapped="" --------k-2f4a11bx0002-----------------------="" int="" 2f="" -="" dblspace.bin="" -="" "swap="" drive"="" -="" swap="" drive="" letters="" of="" cvf="" and="" host="" drive="" ax="4A11h" bx="0002h" dl="drive" number="" (0="A:)" of="" compressed="" drive="" to="" swap="" with="" its="" host="" return:="" ax="status" (0000h,0101h,0102h,0103h)="" (see="" #1519)="" note:="" this="" function="" is="" intended="" for="" use="" by="" dblspace.exe="" only="" seealso:="" ax="4A11h/BX=0000h" --------k-2f4a11bx0003-----------------------="" int="" 2f="" -="" dblspace.bin="" -="" "dsgetentrypoints"="" -="" get="" device="" driver="" entry="" points="" ax="4A11h" bx="0003h" cl="drive" number="" (0="A:)" of="" compressed="" drive="" return:="" cl="FFh" on="" error="" (not="" compressed="" drive)="" cl=""><> FFh driver unit number of host drive
	    ES:SI -> device driver's strategy routine
	    ES:DI -> device driver's interrupt routine
	BX destroyed
Note:	in conjunction with subfunction 0004h, this call allows disk caches
	  like SMARTDRV to apply a device driver wrapper to DoubleSpaced
	  drives just like SMARTDRV applies to regular block devices
SeeAlso: AX=4A10h/BX=0007h,AX=4A11h/BX=0000h,AX=4A11h/BX=0004h
--------k-2F4A11BX0004-----------------------
INT 2F - DBLSPACE.BIN - "DSSetEntryPoints" - SET DEVICE DRIVER ENTRY POINTS
	AX = 4A11h
	BX = 0004h
	CL = drive number (0=A:) of compressed drive
	DL = unit number for new driver entry points
	DH = 00h
	ES:SI -> device driver strategy routine to call for drive
	ES:DI -> device driver interrupt routine to call for drive
Return: CL = FFh on error (not a compressed drive)
	BX destroyed
Program: DBLSPACE.BIN is the resident driver for DoubleSpace, the
	  disk-compression software bundled with MS-DOS 6.0
Note:	in conjunction with subfunction 0003h, this call allows disk caches
	  like SMARTDRV to apply a device driver wrapper to DoubleSpaced
	  drives just like SMARTDRV applies to regular block devices
SeeAlso: AX=4A10h/BX=0007h,AX=4A11h/BX=0000h,AX=4A11h/BX=0003h
--------k-2F4A11BX0005-----------------------
INT 2F - DBLSPACE.BIN - "ActivateDrive" - MOUNT COMPRESSED DRIVE
	AX = 4A11h
	BX = 0005h
	DL = drive number (0=A:) to assign to new drive
	ES:SI -> activation record (see #1520)
Return: status returned in activation record (see #1521)
SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0006h

Format of DBLSPACE activation record:
Offset	Size	Description	(Table 1520)
 00h  2 BYTEs	signature "MD" (4Dh 44h)
 02h	BYTE	4Dh ('M') mount command
 03h	BYTE	error code (set to FFh before calling) (see #1521)
 04h	BYTE	host drive number (0=A:)
 05h	???	DISK_UNIT structure (not documented)

(Table 1521)
Values for DBLSPACE Mount error code:
 00h	successful
 01h	drive letter not available for DoubleSpace
 02h	drive letter already in use
 03h	no more disk units (increase MaxRemovableDrives in .INI)
 09h	CVF too fragmented
--------k-2F4A11BX0006-----------------------
INT 2F - DBLSPACE.BIN - "DeactivateDrive" - UNMOUNT COMPRESSED DRIVE
	AX = 4A11h
	BX = 0006h
	DL = drive number (0=A:) to unmount
Return: AX = status (0000h,0102h) (see #1519)
SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0005h
--------k-2F4A11BX0007-----------------------
INT 2F - DBLSPACE.BIN - "GetDriveSpace" - GET SPACE AVAIL ON COMPRESSED DRIVE
	AX = 4A11h
	BX = 0007h
	DL = compressed drive number (0=A:)
Return: AX = status (0000h,0102h) (see also #1519)
	    0000h successful
		DS:SI -> free space record (see #1522)
Program: DBLSPACE.BIN is the resident driver for DoubleSpace, the
	  disk-compression software bundled with MS-DOS 6.0
SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0008h

Format of DBLSPACE free space record:
Offset	Size	Description	(Table 1522)
 00h	DWORD	total number of sectors in drive's sector heap
 04h	DWORD	number of free sectors in drive's sector heap
--------k-2F4A11BX0008-----------------------
INT 2F - DBLSPACE.BIN - "GetFileFragmentSpace" - GET SIZE OF FRAGMENT HEAP
	AX = 4A11h
	BX = 0008h
	DL = compressed drive number (0=A:)
Return: AX = status (0000h,0102h) (see also #1519)
	    0000h successful
		BX = maximum entries in File Fragment heap
		CX = available entries in File Fragment heap
SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0007h,AX=4A11h/BX=0009h
--------k-2F4A11BX0009-----------------------
INT 2F - DBLSPACE.BIN - "GetExtraInfo" - DETERMINE NUMBER OF DISK_UNIT STRUCTS
	AX = 4A11h
	BX = 0009h
	DL = compressed drive number (0=A:)
Return: AX = status (see also #1519)
	    0000h successful
		CL = number of DISK_UNIT structures allocated
			  (see AX=4A11h/BX=0005h)
		CH = DoubleGuard enabled-checks bitflags in bits 6-0 (DOS 6.2)
Note:	the DoubleGuard checks are enabled or disabled as a block by the
	  DoubleGuard= line in DBLSPACE.INI; they may be individually set with
	  the CheckSum= line.
SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0008h
--------k-2F4A11BX000A-----------------------
INT 2F - DBLSPACE.BIN v6.2 - SET AUTOMOUNT DRIVES
	AX = 4A11h
	BX = 000Ah
	CX:DX = bitmask of drives on which to enable AutoMount
		(DX bit 0 = A:, CX bit 0 = P:, etc.)
Return: AX = 0000h if supported
	    CX:DX = old mask or 0000h:0000h on error
	BX destroyed
SeeAlso: AX=4A11h/BX=000Bh
--------k-2F4A11BX000B-----------------------
INT 2F - DBLSPACE.BIN v6.2 - GET AUTOMOUNT DRIVES
	AX = 4A11h
	BX = 000Bh
Return: AX = 0000h if supported
	    CX:DX = mask of drives with AutoMount enabled
		0000h:0000h on error
	BX destroyed
SeeAlso: AX=4A11h/BX=000Ah
--------k-2F4A11BXFFFE-----------------------
INT 2F U - DBLSPACE.BIN - RELOCATE
	AX = 4A11h
	BX = FFFEh
	ES = segment to which to relocate DBLSPACE.BIN
Return: ???
Notes:	called by DBLSPACE.SYS to relocate DBLSPACE.BIN to its final position
	  in memory
	this function also unhooks and discards the code providing this
	  function and AX=4A11h/BX=FFFFh
	this function is also supported by the version of SuperStor bundled
	  with IBM DOS 6.x and "preloading" versions of Stacker
SeeAlso: AX=4A11h/BX=FFFFh
--------k-2F4A11BXFFFF-----------------------
INT 2F U - DBLSPACE.BIN - GET RELOCATION SIZE
	AX = 4A11h
	BX = FFFFh
Return: AX = number of paragraphs needed by DBLSPACE.BIN
Note:	used by DBLSPACE.SYS to relocate the DBLSPACE driver to its final
	  position in memory
	this function is also supported by the version of SuperStor bundled
	  with IBM DOS 6.x and "preloading" versions of Stacker
SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=FFFEh
--------k-2F4A12CX4D52-----------------------
INT 2F - Microsoft Realtime Compression Interface (MRCI) - RAM-BASED SERVER
	AX = 4A12h
	CX = 4D52h ("MR")
	DX = 4349h ("CI")
Return: CX = 4943h ("IC") if installed
	DX = 524Dh ("RM") if installed
	    ES:DI -> MRCINFO structure (see #0544 at INT 1A/AX=B001h)
Note:	this call is functionally identical to INT 1A/AX=B001h, but should be
	  called first, as the latter call is used for the first, ROM-based
	  MRCI server, while this call is used for RAM-based servers which
	  may be partially or entirely replacing a prior server
SeeAlso: AX=4A12h/CX=5354h,INT 1A/AX=B001h
--------k-2F4A12CX5354-----------------------
INT 2F - Stacker 4 LZS Compression Interface (LZSAPI)
	AX = 4A12h
	CX = 5354h ("ST")
	DX = 4143h ("AC")
Return: AX = 4F4Bh ("OK") if installed
	CX = 7374h ("st") if installed
	DX = 6163h ("ac") if installed
	    ES:DI -> entry point in LZSAPI server (usually, driver
		      STACKER.COM) containing far address of an actual
		      LZSINFO structure (see #1523)
SeeAlso: AX=4A12h/CX=4D52h,INT 25/AX=CDCDh

Format of LZSINFO structure:
Offset	Size	Description	(Table 1523)
 00h  6 BYTEs	signature "LZSAPI"
 06h	WORD	server version (200 (0C8h) for Stacker 4 and Stacker Anywhere)
 08h  4 BYTEs	vendor signature
		"STAC" = Stac Electronics, Inc.
 0Ch  6 BYTEs	???
 12h	WORD	bit flags: server status/capabilities (see #1524)
 14h	DWORD	-> Stacker 3.X-compatible compression procedure
 18h	DWORD	-> Stacker 3.X-compatible decompression procedure
 1Ch  4 BYTEs	reserved (always set to 0)
 20h	DWORD	-> incremental Stacker 3.x-compatible compression procedure
		  (see #1525)
 24h  4 BYTEs	???
 28h	DWORD	-> incremental Stacker 3.x-compatible decompression procedure
		  (see #1526)
 2Ch  4	BYTES	???
 30h	DWORD	-> new (Stacker 4) compression procedure
 34h  4 BYTEs	???
 38h	DWORD	-> new (Stacker 4) decompression procedure
Notes:	Stacker 4 usally keeps two different data-compression algorithms in
	  memory (preferably in XMA):
	    1) new (Stacker 4) data compression algorithm (4K LZ77 with hashing
		  and static Huffman encoding), and
	    2) old (Stacker 3.x-compatible) one (2K LZ77 with hashing), which
		  is used to work with STACVOL files created under older
		  versions of Stacker.

Bitfields for LZSAPI capabilities:
Bit(s)	Description	(Table 1524)
 0	???
 1	busy/error flag
 2-10	???
 11	maximum compressor/decompressor presented

(Table 1525)
Call Stacker 3.x-style non-incremental functions with:
	STACK:	DWORD	return address for compress/decompress procedure
		WORD	compression algorithm parameters (see #1527)
		WORD	size of destination buffer (in bytes)
		DWORD	address of destination buffer
		WORD	size of source buffer (in bytes)
		DWORD	address of source buffer
Return: (compression/decompression procedure)
	AX = size of resulting data in destination buffer
	    0000h if error (either destination buffer too small or error in
		  compressed data)

(Table 1526)
Call Stacker 4-style incremental procedures with:
	STACK:	DWORD	return address for compr./decompr. procedure
		DWORD	address of LZSSWAP structure (see #1528)
			if 0000:0000, procedure uses non-incremental technique
		WORD	compression algorithm parameters (see #1527)
		WORD	size of destination buffer (in bytes)
		DWORD	address of destination buffer
		WORD	size of source buffer (in bytes)
		DWORD	address of source buffer

(Table 1527)
Values for Compression algorithm parameters:
Value	Compression level (/P=xx parameter)
 07F9h	  1
 0621h	  2
 0625h	  3
 0665h	  4
 0669h	  5
 06E9h	  6
 06EDh	  7
 07D1h	  8
 07D9h	  9

Format of LZSSWAP structure:
Offset	Size	Description	(Table 1528)
 00h  2 BYTEs	signature "CS"
 02h  6 BYTEs	reserved
 08h	DWORD	address of destination buffer swapping procedure
 0Ch	DWORD	address of stack swapping procedure
--------k-2F4A13-----------------------------
INT 2F U - DBLSPACE.BIN - GET ??? ENTRY POINTS
	AX = 4A13h
Return: AX = 134Ah if supported
	    ES:BX -> entry point record (see #1529)
SeeAlso: AX=4A11h/BX=0000h

Format of DBLSPACE entry point record:
Offset	Size	Description	(Table 1529)
 00h	DWORD	pointer to FAR function for ???
 04h  5 BYTEs	FAR JUMP instruction to ???
--------N-2F4B-------------------------------
INT 2F - LAN Manager 2.0 DOS Enh NETWKSTA.EXE - NETWORK WORKSTATION REDIRECTOR
	AH = 4Bh
	???
Return: ???
Note:	LAN Manager enhanced mode adds features beyond the standard redirector
	  file/printer services
SeeAlso: AX=118Ah,AX=4100h,AH=42h
--------T-2F4B01-----------------------------
INT 2F C - DOS 5+ TASK SWITCHER - BUILD CALLOUT CHAIN
	AX = 4B01h
	CX:DX -> task switcher entry point (see #1532)
	ES:BX = 0000h:0000h
Return: ES:BX -> callback info structure (see #1530) or 0000h:0000h
Notes:	called by the task switcher
	this function is hooked by clients which require notification of task
	  switcher activities; the call must first be passed on to the prior
	  handler with registers unchanged using a simulated interrupt.	 On
	  return, the client must build a callback info structure and store
	  the returned ES:BX in the "next" field, then return the address of
	  its own callback info structure.
	a client program must add itself to the notification chain if it
	  provides services to other programs; before terminating, it must
	  remove itself from the chain by calling the task switcher's entry
	  point with AX=0005h (see #1532)
	the task switcher entry point should not be saved, as it is subject to
	  change and will be provided on any notification call
	the Windows 3.1 Standard Mode supports this API
SeeAlso: AX=160Bh,AX=4B02h

Format of task switcher callback info structure:
Offset	Size	Description	(Table 1530)
 00h	DWORD	pointer to next callback info structure
 04h	DWORD	pointer to notification function (see #1531)
 08h	DWORD	reserved
 0Ch	DWORD	address of zero-terminated list of API info structures
		(see #1534)

(Table 1531)
Values task switcher notification function is called with:
	AX = function
	    0000h switcher initialization
		Return: AX = status
			    0000h if OK to load
			    nonzero to abort task switcher
	    0001h query suspend
		BX = session ID
		Return: AX = status
			    0000h if OK to switch session
			    0001h if not
	    0002h suspend session
		BX = session ID
		interrupts disabled
		Return: AX = 0000h if OK to switch session
			   = 0001h if not
	    0003h activate session
		BX = session ID
		CX = session status flags
			bit 0: set if first activation of session
			bits 1-15: reserved (0)
		interrupts disabled
		Return: AX = 0000h
	    0004h session active
		BX = session ID
		CX = session status flags
			bit 0: set if first activation of session
			bits 1-15: reserved (0)
		Return: AX = 0000h
	    0005h create session
		BX = session ID
		Return: AX = 0000h if OK to create session
			   = 0001h if not
	    0006h destroy session
		BX = session ID
		Return: AX = 0000h
	    0007h switcher termination
		BX = flags
		    bit 0: set if calling switcher is only switcher loaded
		    bits 1-15: reserved (0)
		Return: AX = 0000h
	ES:DI -> task switcher entry point (see #1532)
Notes:	function 0000h is generally called by the program which controls or
	  invokes the task switcher, rather than by the task switcher itself;
	  the entry point supplied to this function is not necessarily the
	  entry point to the task switcher itself, and may be 0000h:0000h.  If
	  any client indicates that loading is not possible, all clients will
	  be called with function 0007h; thus it is possible for a client to
	  receive a termination notice without a corresponding initialization
	  notice.
	except for functions 0002h and 0003h, the notification handler is
	  called with interrupts enabled and may make any INT 21h function
	  call; interrupts must not be enabled in functions 0002h and 0003h
	function 0007h may be called with ES:DI = 0000h:0000h if the entry
	  point is no longer valid
--------T-2F4B02BX0000-----------------------
INT 2F - DOS 5+ TASK SWITCHER - INSTALLATION CHECK
	AX = 4B02h
	BX = 0000h
	ES:DI = 0000h:0000h
Return: ES:DI = 0000h:0000h if task switcher not loaded
	ES:DI -> task switcher entry point (see #1532) if loaded
	    AX = 0000h
Notes:	the returned entry point is that for the most-recently loaded task
	  switcher; the entry points for prior task switchers may be determined
	  with the "get version" call (see #1532)
	this function is supported by PC Tools v8+ CPTASK
SeeAlso: AX=4A05h,AX=4B03h

(Table 1532)
Call task switcher entry point with:
	AX = 0000h get version
		Return: CF clear if successful
			    AX = 0000h
			    ES:BX -> task switcher version struct (see #1533)
			CF set if unsupported function
	AX = 0001h test memory region
		ES:DI -> first byte to be tested
		CX = size of region to test
		Return: CF clear if successful
			    AX = memory type of tested region
				0000h global
				0001h global and local
				0002h local (replaced on session switch)
			CF set if unsupported function
	AX = 0002h suspend switcher
		ES:DI -> new task switcher's entry point
		Return: CF clear if successful
			    AX = state
				0000h switcher has been suspended
				0001h switcher not suspended, new switcher must
					abort
				0002h switcher not suspended, but new switcher
					may run anyway
			CF set if unsupported function
	AX = 0003h resume switcher
		ES:DI -> new task switcher's entry point
		Return: CF clear if successful
			    AX = 0000h
			CF set if unsupported function
	AX = 0004h hook notification chain
		ES:DI -> callback info structure to be added to chain
			  (see #1530)
		Return: CF clear if successful
			    AX = 0000h
			CF set if unsupported function
	AX = 0005h unhook notification chain
		ES:DI -> callback info structure to be removed from chain
			  (see #1530)
		Return: CF clear if successful
			    AX = 0000h
			CF set if unsupported function
	AX = 0006h query API support
		BX = asynchronous API identifier
		Return: CF clear if successful
			    AX = 0000h
			    ES:BX -> API info structure (see #1534) for the
				      client which provides the highest
				      level of API support
			CF set if unsupported function

Format of task switcher version structure:
Offset	Size	Description	(Table 1533)
 00h	WORD	major version of supported protocol  (current protocol is 1.0)
 02h	WORD	minor version of supported protocol
 04h	WORD	major version of task switcher
 06h	WORD	minor version of task switcher
 08h	WORD	task switcher ID (see AX=4B03h)
 0Ah	WORD	operation flags
		bit 0: set if task switcher disabled
		bits 1-15: reserved (0)
 0Ch	DWORD	pointer to ASCIZ task switcher name
		("MS-DOS Shell Task Switcher" for DOSSHELL task switcher)
 10h	DWORD	pointer to previous task switcher's entry point or 0000h:0000h

Format of API info structure:
Offset	Size	Description	(Table 1534)
 00h	WORD	size of structure in bytes (000Ah)
 02h	WORD	API identifier
		0001h NetBIOS
		0002h 802.2
		0003h TCP/IP
		0004h LAN Manager named pipes
		0005h Novell NetWare IPX
 04h	WORD	major version \ of highest version of API for which the support
 06h	WORD	minor version / level specified in the next field is provided
 08h	WORD	support level
		0001h minimal support
		0002h API-level support
		0003h switcher compatibility
		0004h seamless compatibility
--------T-2F4B03-----------------------------
INT 2F - DOS 5+ TASK SWITCHER - ALLOCATE SWITCHER ID
	AX = 4B03h
	ES:DI -> task switcher entry point (see #1532)
Return: AX = 0000h
	BX = switcher ID (0001h-000Fh), or 0000h if no more available
Notes:	if a task switcher has determined that it is the first to be loaded, it
	  must allocate an identifier for itself and provide this function to
	  all subsequent task switchers; if it is not the first to be loaded,
	  it must call this function to allocate an ID.	 The switcher ID is
	  used as the high four bits of all session identifiers to ensure
	  unique session IDs.
	if no more switcher IDs are available, the new task switcher making the
	  call must terminate or disable itself
	the task switcher providing the identifiers may call the new task
	  switcher's entry point as needed
	this call is available from within DOSSHELL even if the task switcher
	  is not installed
	this function is supported by PC Tools v8+ CPTASK, but appears to
	  always return an ID of 0000h
SeeAlso: AX=4B02h,AX=4B04h
--------T-2F4B04-----------------------------
INT 2F - DOS 5+ TASK SWITCHER - FREE SWITCHER ID
	AX = 4B04h
	BX = switcher ID
	ES:DI -> task switcher entry point (see #1532)
Return: AX = 0000h
	BX = status
	    0000h successful
	    other error (invalid ID or ID not allocated)
Notes:	called by a task switcher when it exits, unless it was the first loaded
	  and is providing the support for AX=4B03h and AX=4B04h
	the task switcher providing the identifiers may call the terminating
	  task switcher's entry point as needed
	this call is available from within DOSSHELL even if the task switcher
	  is not installed
	this call is supported by PC Tools v8+ CPTASK, but appears to return
	  sucessfully no matter which ID is given
SeeAlso: AX=4B02h,AX=4B03h
--------T-2F4B05-----------------------------
INT 2F C - DOS 5+ TASK SWITCHER - IDENTIFY INSTANCE DATA
	AX = 4B05h
	ES:BX = 0000h:0000h
	CX:DX -> task switcher entry point (see #1532)
Return: ES:BX -> startup info structure (see #1535) or 0000h:0000h
Notes:	called by task switcher
	clients with instance data should hook this call, pass it through to
	  the previous handler with unchanged registers using a simulated
	  interrupt.  On return, the client should create a startup info
	  structure (see #1535), store the returned ES:BX in the "next"
	  field, and return the address of the created structure in ES:BX
	all MS-DOS function calls are available from within this call
SeeAlso: AX=1605h,AX=160Bh,AX=4B02h

Format of task switcher startup info structure:
Offset	Size	Description	(Table 1535)
 00h  2 BYTEs	major, minor version of info structure (03h,00h)
 02h	DWORD	pointer to next startup info structure or 0000h:0000h
 06h	DWORD	0000h:0000h (ignored)
 0Ah	DWORD	ignored
 0Eh	DWORD	pointer to instance data records (see #1536)

Format of one instance data record in array:
Offset	Size	Description	(Table 1536)
 00h	DWORD	address of instance data (end of array if 0000h:0000h)
 04h	WORD	size of instance data
--------W-2F4B06-----------------------------
INT 2F - MS Windows - WIN.COM - GET ??? POINTER TO WIN.COM
	AX = 4B06h
Return:	AX = 0000h
	ES:BX -> ??? function in WIN.COM
Note:	the entry point is called with
	    AX = 0001h or 0003h
	    BX = ???
SeeAlso: AX=4B80h
--------W-2F4B20-----------------------------
INT 2F - MS Windows 3 - WIN.COM - SET PROGRAM TO EXECUTE ON EXIT
	AX = 4B20h
Return: AX = 0000h if successful
	    DX:CX -> 256-byte buffer for pathname and commandline (see #1537)
Note:	when the Windows function ExitWindows is called with an exit code of
	  44h, WIN.COM executes the program specified in the returned buffer
	  and then restarts Windows

Format of WIN.COM buffer:
Offset	Size	Description	(Table 1537)
 00h 128 BYTEs	ASCIZ pathname of program to execute
 80h 128 BYTEs	commandline for program
--------W-2F4B80-----------------------------
INT 2F - MS Windows - WSWAP.EXE - RESET INTERNAL VARIABLES
	AX = 4B80h
Return: nothing
Note:	called by WINOLDAP.MOD
SeeAlso: AX=4B06h
--------p-2F4C-------------------------------
INT 2F U - Advanced Power Management
	AH = 4Ch
	AL = function
	    00h version check
	    01h suspend system requested
		 FFh suspend/resume battery notification
	???
Return: ???
----------2F4D-------------------------------
INT 2F U - ???
	AH = 4Dh
	???
Return: ???
Note:	reportedly called by Kana Kanji Converter and MSKK
--------N-2F4E53BL00-------------------------
INT 2F - SilverNET v2+ - INSTALLATION CHECK
	AX = 4E53h ("NS")
	BL = 00h (function "installation check")
	BH = module ID (see #1538)
Return: AX = 0000h if specified module installed
	BX = 4E53h if installed
Program: SilverNET is an SMB-compatible peer-to-peer NOS for DOS or
	  Windows systems, by Net-Source, Inc. of Santa Clara, CA.
SeeAlso: AX=4E53h/BL=01h,AX=4E53h/BL=02h,AX=B800h,AX=B809h

(Table 1538)
Values for SilverNET module ID:
 01h	SilverCACHE
 02h	Workstation
 03h	NetBIOS
 04h	Peer
 20h	NS Share
 80h	NetWare help TSR
--------N-2F4E53BL01-------------------------
INT 2F - SilverNET - GET RUNTIME PARAMETER
	AX = 4E53h ("NS")
	BL = 01h (function "get runtime parameter")
	BH = module ID (see #1538)
	CX = parameter index (see #1539,#1541,#1542)
Return: AX = WORD value at specified index (see #1540)
Desc:	retrieve a word of data from the specified SilverNET module

(Table 1539)
Values for SilverNET Peer parameter index (* = read-only):
 00h *	maximum outstanding SMB buffers
 02h *	maximum logged-in nodes
 04h *	number of shareable resources
 06h *	number of characters to print per time slice
 08h *	number of printers that can be shared
 0Ah *	number of nodes logged in
 0Ch *	number of files to allow opened
 0Eh	how fast to despool (/PSLICE)
 10h	audit flag
 24h *	far pointer to resource table (each resource is 96 bytes in length)
 32h *	far pointer to SFT (internal if SilverNET files > CONFIG.SYS files,
	else DOS SFT)
 36h	spool flags (see #1540)

Bitfields for spool flags:
Bit(s)	Description	(Table 1540)
 0	LPT1 needs despooling
 1	LPT2 needs despooling
 2	LPT2 needs despooling
 4	COM1 needs despooling
 5	COM2 needs despooling
 6	COM3 needs despooling

(Table 1541)
Values for NS Share parameter index (* = read-only):
 00h	version number (high byte = minor, low byte = major)
 10h *	segment of first lock record (other records in consecutive paragraphs)
	(if PSP field = 0000h, lock record is free)
 12h *	maximum possible number of lock records
 14h *	starting segment of sharing buffer
	(NS Share's sharing records are identical to DOS SHARE except that
	  fields which are normally offsets into SHARE are segment numbers)
 18h *	size of sharing buffer in paragraphs
 1Ah *	total free paragraphs in sharing buffer
 1Ch *	current number of shared files
 1Eh *	current number of locked records

(Table 1542)
Values for Workstation parameter index (* = read-only):
 00h	version number (high byte = minor, low byte = major)
 02h *	size of each network buffer for file operations
 04h *	number of redirector file buffers
 06h *	size of each print cache buffer
 08h *	number of network LPT printers
 0Ch	flush time in ticks (idle time on network printer before flushing)
 0Eh	(16 WORDs) last active time for each printer
 2Eh *	stub segment if program split into two parts
 60h	receive name number for datagram listens
 62h *	18-byte machine name
 74h *	LASTDRIVE (01h = A:, etc.)
 7Ch	row number of message box on screen
 7Eh	message time in clock ticks
 82h *	number of network adapters in use
 84h	station ID broadcast flag (never set on redirectors)
 96h *	NetBIOS names left
 98h *	NCBs left
 9Ah *	sessions left
 A2h *	total number of network printers (LPT+COM)
 A4h *	number of serial network printers
 A8h *	segment containing file cache buffers
 AAh *	segment containing print cache buffers
 ACh *	bytes remaining free in HMA before program loaded
 AEh *	start of free memory in HMA
 B2h *	flag: using HMA
--------N-2F4E53BL02-------------------------
INT 2F - SilverNET - SET RUNTIME PARAMETERS
	AX = 4E53h ("NS")
	BL = 02h (function "set runtime parameters")
	BH = module ID (see #1538)
	CX = parameter index (see #1541,#1542)
	DX = new value for specified parameter
Desc:	set a WORD value in the specified SilverNET module
Note:	not all indexed parameters are writable; modifying a read-only
	  parameter can result in system crashes
SeeAlso: AX=4E53h/BL=00h,AX=4E53h/BL=01h
--------N-2F5100-----------------------------
INT 2F U - ODIHLP.EXE - INSTALLATION CHECK
	AX = 5100h
Return: AL = FFh if installed
	    BX = 0000h
	    DX:SI -> signature string "ODI$HLP$"
Program: ODIHLP is a real-mode helper allowing the Windows for Workgroups 3.11
	  protected-mode NDIS3 protocol to work with real-mode ODI drivers
	  and LSL.COM
Note:	the returned signature string might be the first field of a structure
SeeAlso: AX=C000h"LSL.COM"
--------k-2F5200-----------------------------
INT 2F - JAM.SYS v1.10+ - "GetVersion" - INSTALLATION CHECK
	AX = 5200h
Return: AH = 80h (successful) if installed
	BX = internal JAM.SYS version number
	CX = size of JAMINFO structure (see #1543,#1544)
	DX = JAM.SYS segment address
Program: JAM.SYS is a main component of the JAM Real-Time Data Compression
	  Utilities by George A. Reznik and friends (JAM Software).
SeeAlso: AX=5201h

Format of JAMINFO v1.10 structure:
Offset	Size	Description	(Table 1543)
 00h 25 BYTEs	extended BIOS parameter block (BPB)
 19h 11 BYTEs	???
 25h	DWORD	total number of sectors in JAM archive file
		(size of compressed data area)
 29h	BYTE	flags (see #1545)
 2Ah 127 BYTEs	full JAM archive file name
 A9h	WORD	the number of fragments in archive file
 ABh 96 BYTEs	archive file fragmentation list -
		array of 16 FRAGMENT structures (see #1546)
10Bh	DWORD	address of the host-drive DPB (Drive Parameter Block)
10Fh	DWORD	number of free sectors in JAM archive file
113h	WORD	device status word (see #1547)
SeeAlso: #1544

Format of JAMINFO v1.20 structure:
Offset	Size	Description	(Table 1544)
 00h 25 BYTEs	extended BIOS parameter block (BPB)
 19h	BYTE	physical driver number
 1Ah	BYTE	reserved
 1Bh	BYTE	extended boot record signature
 1Ch	DWORD	volume serial number
 20h 11 BYTEs	volume label
 2Bh  8 BYTEs	file system ID
 33h	DWORD	total number of sectors in JAM archive file
		(size of compressed data area)
 37h	BYTE	flags (see #1545)
 38h 128 BYTEs	full JAM archive file name
 B8h	WORD	the number of fragments in archive file
 BAh 96 BYTEs	archive file fragmentation list -
		array of 16 FRAGMENT structures (see #1546)
11Ah	DWORD	address of the host-drive DPB (Drive Parameter Block)
11Eh	DWORD	number of free sectors in JAM archive file
122h	WORD	device status word (see #1547)
Note:	the first 33h bytes are copied from the archive file's boot sector
SeeAlso: #1543

Bitfields for JAMINFO flags:
Bit(s)	Description	(Table 1545)
 2-0	reserved
 3	(v1.20+)
 4	enable direct write requests (Int 26h, non-DOS requests, etc.)
 5	read-only mode
 6	no write-behind caching
 7	full undelete-compatible allocation strategy
SeeAlso: #1543,#1544

Format of JAM FRAGMENT structure:
Offset	Size	Description	(Table 1546)
 00h	WORD	starting sector (low word)
 02h	BYTE	starting sector (high byte)
 03h	WORD	size of fragment (low word)
 05h	BYTE	size of fragment (high byte)
SeeAlso: #1543,#1544

(Table 1547)
Values for JAM.SYS status (high byte):
 00h	successful
 01h	drive is not a JAM drive
 02h	drive is already attached
 03h	archive file cluster size value is larger than driver's one
 04h	drive is not attached
 05h	drive is locked
 06h	drive is not locked
 07h	bad physical-level request
 08h	host drive reading/writing error
 09h	bad entries in JAM descriptor table
 0Ah	compressed data integrity error
 0Bh	archive file overflow
 0Ch	bad DOS request
 0Dh	incorrect parameters in JAMINFO structure
Note:	the low byte of the status is the DOS error code for the Host drive
SeeAlso: #1383 at INT 2F/AX=0802h
--------k-2F5201-----------------------------
INT 2F - JAM.SYS v1.10+ - "GetInfo" - GET COMPRESSED DRIVE INFORMATION
	AX = 5201h
	DL = compressed drive number (0-default, 1-A:, etc.)
	DS:BX -> buffer for JAMINFO structure (see #1543,#1544)
Return: AH = status (00h,01h) (see #1547)
SeeAlso: AX=5200h
--------k-2F5202-----------------------------
INT 2F - JAM.SYS v1.10+ - "Attach" - MOUNT COMPRESSED DRIVE
	AX = 5202h
	DL = drive number (0-default, 1-A:, etc.) to attach to the JAM
	      archive file
	DS:BX -> pointer to JAMINFO structure (see #1543,#1544), which
	      contains parameters of the JAM file to mount, and pointer
	      to the host drive DPB (i.e. DPB of the drive on which the
	      JAM file is located)
Return: AH = status (00h,02h,03h,08h,09h,0Dh) (see also #1547)
	    03h archive file cluster size value is larger than driver's - not
		  mounted
	    09h bad entries in JAM descriptor table - file mounted read-only
	AL = host drive error code (see #1383 at INT 2F/AX=0802h)
SeeAlso: AX=5203h
--------k-2F5203-----------------------------
INT 2F - JAM.SYS v1.10+ - "Detach" - UNMOUNT COMPRESSED DRIVE
	AX = 5203h
	DL = drive number (0-default, 1-A:, etc.) to detach
Return: AH = status (00h,01h,04h,05h,08h,09h,0Bh,0Dh) (see #1547)
	AL = host drive error code (see #1383 at INT 2F/AX=0802h)
SeeAlso: AX=5202h
--------k-2F5204-----------------------------
INT 2F - JAM.SYS v1.10+ - "Lock" - LOCK COMPRESSED DRIVE
	AX = 5204h
	DL = drive number (0-default, 1-A:, etc.) to lock
Return: AH = status (00h,01h,04h,05h,08h,09h,0Bh,0Dh) (see #1547)
	AL = host drive error code (see #1383 at INT 2F/AX=0802h)
SeeAlso: AX=5205h, AX=5206h, AX=5207h
--------k-2F5205-----------------------------
INT 2F - JAM.SYS v1.10+ - "UnLock" - UNLOCK COMPRESSED DRIVE
	AX = 5205h
	DL = drive number (0-default, 1-A:, etc.) to unlock
Return: AH = status (00h,01h,04h,06h,08h,09h,0Dh) (see #1547)
	AL = host drive error code (see #1383 at INT 2F/AX=0802h)
SeeAlso: AX=5204h, AX=5206h, AX=5207h
Note:	Lock and UnLock functions were added to the JAM API to prevent
	  asynchronous physical-level access (see AX=5206h,AX=5207h) to
	  compressed data on JAM drives. In other words, two or more programs
	  which use JAM API (say, JMAX optimizer and JCHKDSK - disk checker)
	  cannot be run on the same JAM drive simultaneously.
--------k-2F5206-----------------------------
INT 2F - JAM.SYS v1.10+ - "Read" - PHYSICAL READ DATA FROM JAM ARCHIVE
	AX = 5206h
	DL = drive number (0-default, 1-A:, etc.)
	DS:BX -> disk transfer packet (see #1548)
Return: AH = status (00h,01h,04h,06h,07h,08h,0Dh) (see #1547)
	AL = host drive error code (see #1383 at INT 2F/AX=0802h)
Program: JAM.SYS is a main component of the JAM Real-Time Data Compression
	  Utilities by George A. Reznik and friends (JAM Software).
SeeAlso: AX=5207h

Format of disk transfer packet:
Offset	Size	Description	(Table 1548)
 00h	DWORD	sector number
 04h	WORD	number of sectors to read(write)
 06h	DWORD	transfer address
--------k-2F5207-----------------------------
INT 2F - JAM.SYS v1.10+ - "Write" - PHYSICAL WRITE DATA TO JAM ARCHIVE
	AX = 5207h
	DL = drive number (0-default, 1-A:, etc.)
	DS:BX -> disk transfer packet (see #1548)
Return: AH = status (00h,01h,04h,06h,07h,08h,0Dh) (see #1547)
	AL = host drive error code (see #1383 at INT 2F/AX=0802h)
SeeAlso: AX=5206h
--------p-2F53-------------------------------
INT 2F U - POWER.EXE - APM event broadcasting???
	AH = 53h
	AL = event???
	    05h CPU idle
	    0Bh PM event broadcast API
Return: ???
Note:	called by MS Windows 3.1 POWER.DRV; hooked by MS Mouse driver v8.20+
	  and PC-Cache v8.0
SeeAlso: AX=530Bh,AH=54h,INT 33/AX=002Fh
--------p-2F530B-----------------------------
INT 2F U - ??? (MOUSEPWR.COM, others) - ???
	AX = 530Bh
	BX = subfunction
	    0003h ???
	    0004h ???
	???
Return: ???
Note:	it appears that subfunction 0003h reads or restores the current mouse
	  settings (the MS Mouse driver hooks AX=530Bh), and 0004h might be
	  the converse
--------p-2F5400-----------------------------
INT 2F U - POWER.EXE - INSTALLATION CHECK
	AX = 5400h
Return: AX = POWER.EXE version (AH = major, AL = minor) if installed
	BX = 504Dh ("PM")
	CF clear
Note:	called by MS Windows 3.1 POWER.DRV
SeeAlso: AH=53h,AX=5401h,AX=5402h,AX=5481h,AX=5482h
--------p-2F5401-----------------------------
INT 2F U - POWER.EXE - GET/SET POWER STATUS
	AX = 5401h
	BH = function
	    00h get status
		Return: BL = current power management status (see #1549)
	    01h set status
		BL = new power managment status (see #1549)
Return: AX = function status (see #1550)
Note:	called by MS Windows 3.1 POWER.DRV
SeeAlso: AH=53h,AX=5400h,AX=5402h,AX=5403h

Bitfields for power management status:
Bit(s)	Description	(Table 1549)
 0	POWER.EXE power management enabled
 1	APM firmware power management enabled
 2-7	reserved (0)
Notes:	bit 1 is ignored if there is no APM firmware
	bits 1-0: 00 = POWER OFF, 10 = POWER STD, 11 = POWER ADV

(Table 1550)
Values for POWER.EXE function status:
 0000h	successful
 0002h	"ERROR_PM_ALREADY_CONNECTED"
 0003h	"ERROR_PM_NOT_CONNECTED"
 0087h	"ERROR_PM_INVALID_PARAMETER"
--------p-2F5402-----------------------------
INT 2F U - POWER.EXE - GET/SET IDLE DETECTION STRATEGY
	AX = 5402h
	BH = subfunction
	    00h get
	    other set
		BL = detection strategy (00h-0Fh or FFh)
Return: BX = current/new detection strategy
SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5481h,AX=5482h
--------p-2F5403-----------------------------
INT 2F U - POWER.EXE - GET/SET ADVANCED POWER MANAGEMENT SETTING
	AX = 5403h
	BX = new power management setting or 0000h to get current setting
Return: AX = status
	    0000h successful
		BX = power management setting (see #1551)
	    other error code
SeeAlso: AX=5401h,AX=5480h

(Table 1551)
Values for power management setting:
 0001h-0005h "min"
 0006h	     "reg"
 0007h-0008h "max"
--------t-2F5453-----------------------------
INT 2F - TesSeRact RAM-RESIDENT PROGRAM INTERFACE
	AX = 5453h
	BX = subfunction
	    00h installation check
		CX = 0000h
		DS:SI -> 8-char blank-padded name (see #1552)
		Return: AX = FFFFh installed
				CX = ID number of already-installed copy
			AX = anything else, not installed
				CX = ID number for TSR when installed
	    01h get user parameters
		CX = TSR ID number
		Return: AX = status
			    0000h successful
				ES:BX -> user parameter block (see #1553)
			    nonzero failed
	    02h check if hotkey in use
		CL = scan code of hot key
		Return: AX = FFFFh hot key conflicts with another TSR
			     otherwise safe to use the hotkey
	    03h replace default critical error handler
		CX = TSR ID number
		DS:SI -> new routine for INT 24h
		Return: AX = nonzero, unable to install new handler
	    04h get internal data area
		CX = TSR ID number
		Return: AX = status
			    0000h successful
				ES:BX -> TSR's internal data area (see #1554)
				 nonzero, TSR not found
	    05h set multiple hot keys
		CX = TSR ID number
		DL = number of additional hot keys to allocate
		DS:SI -> table of hot keys
			BYTE  hotkey scan code
			BYTE  hotkey shift state
			BYTE  flag value to pass to TSR (nonzero)
		Return: AX = nonzero, unable to install hot keys
	    06h - 0Fh reserved
	    10h enable TSR
		CX = TSR ID number
		Return: AX = nonzero, unable to enable
	    11h disable TSR
		CX = TSR ID number
		Return: AX = nonzero, unable to disable
	    12h unload TSR
		CX = TSR ID number
		Return: AX = nonzero, invalid TSR number
		Note: if any interrupts used by TSR have been grabbed by
			another TSR, the TesSeRact routines will wait until
			it is safe to remove the indicated TSR from memory
	    13h restart TSR
		CX = TSR ID number of TSR which was unloaded but is still in
		     memory
		Return: AX = nonzero, unable to restart TSR
	    14h get status word
		CX = TSR ID number
		Return: AX = FFFFh invalid ID number
			   = other, successful
				BX = bit flags
	    15h set status word
		CX = TSR ID number
		DX = new bit flags
		Return: AX = nonzero, unable to set status word
	    16h get INDOS state at popup
		CX = TSR ID number
		Return: AX = 0000h successful
			    BX = value of INDOS flag
	    17h - 1Fh reserved
	    20h call user procedure
		CX = TSR ID number
		ES:DI -> user-defined data
		Return: AX = 0000h successful
	    21h stuff keystrokes into keyboard buffer
		CX = TSR ID number
		DL = speed
		    00h stuff keystrokes only when buffer is empty
		    01h stuff up to four keystrokes per clock tick
		    02h stuff up to 15 keystrokes per clock tick
		DH = scan code flag
		    if zero, buffer contains alternating ASCII and scan codes
		    if nonzero, buffer contains only ASCII codes
		SI = number of keystrokes
		ES:DI -> buffer to stuff
		Return: AX = 0000h success
			     F0F0h user aborted with ^C or ^Break
			     other unable to stuff keystrokes
	    22h (v1.10) trigger popup
		CX = TSR ID number
		Return: AX = 0000h success, TSR will either pop up or beep to
				   indicate that it is unable to pop up
			     nonzero invalid ID number
	    23h (v1.10) invoke TSR's background function
		CX = TSR ID number
		Return: AX = 0000h success
			     FFFFh not safe to call background function
			     nonzero invalid ID number
	    24h - 2Fh reserved
Notes:	Borland's THELP.COM popup help system for Turbo Pascal and Turbo C
	  (versions 1.x and 2.x only) fully supports the TesSeRact API, as
	  do the SWAP?? programs by Innovative Data Concepts.
	AVATAR.SYS supports functions 00h and 01h (only the first three fields
	  of the user parameter block) using the name "AVATAR  "
SeeAlso: AX=CAFEh,INT 16/AX=55FFh,INT 2D"AMIS"
Index:	installation check;TesSeRact TSR interface|uninstall;TesSeRact

(Table 1552)
Values for TesSeRact names:
 "AVATAR  "	AVATAR.SYS
 "QeditTSR"	TSR version of SemWare's Qedit editor
 "SCRNBLNK"	Trusted Access screen blanker

Format of TesSeRact User Parameter Block:
Offset	Size	Description	(Table 1553)
 00h  8 BYTEs	blank-padded TSR name
 08h	WORD	TSR ID number
 0Ah	DWORD	bitmap of supported functions
 0Eh	BYTE	scan code of primary hotkey
		00h = pop up when shift states match
		FFh = no popup (if shift state also FFh)
 0Fh	BYTE	shift state of primary hotkey
		FFh = no popup (if scan code also FFh)
 10h	BYTE	number of secondary hotkeys
 11h	DWORD	pointer to extra hotkeys set by func 05h
 15h	WORD	current TSR status flags
 17h	WORD	PSP segment of TSR
 19h	DWORD	DTA for TSR
 1Dh	WORD	default DS for TSR
 1Fh	DWORD	stack at popup
 23h	DWORD	stack at background invocation
Index:	hotkeys;TesSeRact TSR interface

Format of TSR internal data area:
Offset	Size	Description	(Table 1554)
 00h	BYTE	revision level of TesSeRact library
 01h	BYTE	type of popup in effect
 02h	BYTE	INT 08 occurred since last invocation
 03h	BYTE	INT 13 occurred since last invocation
 04h	BYTE	active interrupts
 05h	BYTE	active soft interrupts
 06h	BYTE	DOS major version
 07h	BYTE	how long to wait before popping up
 08h	DWORD	pointer to INDOS flag
 0CH	DWORD	pointer to DOS critical error flag
 10h	WORD	PSP segment of interrupted program
 12h	WORD	PSP segment of prog interrupted by INT 28
 14h	DWORD	DTA of interrupted program
 18h	DWORD	DTA of program interrupted by INT 28
 1Ch	WORD	SS of interrupted program
 1Eh	WORD	SP of interrupted program
 20h	WORD	SS of program interrupted by INT 28
 22h	WORD	SP of program interrupted by INT 28
 24h	DWORD	INT 24 of interrupted program
 28h  3 WORDs	DOS 3+ extended error info
 2Eh	BYTE	old BREAK setting
 2Fh	BYTE	old VERIFY setting
 30h	BYTE	were running MS WORD 4.0 before popup
 31h	BYTE	MS WORD 4.0 special popup flag
 32h	BYTE	enhanced keyboard call in use
 33h	BYTE	delay for MS WORD 4.0
11 times (for INTs 08h,09h,13h,16h,1Ch,21h,28h,2Fh,1Bh,23h, and 24h):
	DWORD	old interrupt vector
	BYTE	interrupt number
	WORD	offset in TesSeRact code segment of new interrupt handler
--------p-2F5480-----------------------------
INT 2F U - POWER.EXE - GET/SET ???
	AX = 5480h
	BX = direction
	    0000h get
	    other set
	CX = size of buffer (at least 0010h)
	DS:SI -> buffer
Return: AX = status
	    0000h successful
	    other error code
SeeAlso: AX=5400h,AX=5481h,AX=548Fh
--------p-2F5481-----------------------------
INT 2F U - POWER.EXE - GET STATISTICS
	AX = 5481h
	BX = which statistics
	    0000h idle detection
	    0001h APM statistics
	CX = length of buffer in bytes
	DS:SI -> buffer for statistics (see #1555,#1556)
Return: AX = status
	    0000h successful
	    0071h "ERROR_PM_BUFFER_TOO_SMALL"
	    0087h "ERROR_PM_INVALID_PARAMETER"
SeeAlso: AH=53h,AX=5400h,AX=5480h,AX=5402h,AX=5482h

Format of POWER.EXE idle detection statistics:
Offset	Size	Description	(Table 1555)
 00h	DWORD	"CPU_ON_TIME" total time CPU is active with POWER.EXE idle
		  detection enabled, in timer ticks
 04h	DWORD	"CPU_IDLE_TIME" timer ticks during which CPU was idle
		(divide by previous to get idle	rate)
 08h	DWORD	total idle calls
 0Ch	DWORD	"TOTAL_APP_IDLE" total INT 2Fh idle calls
 10h	DWORD	"TOTAL_DOS_YIELD" total INT 28h idle calls
 14h	DWORD	"TOTAL_KEY_IDLE" total INT 16h idle calls
 18h	DWORD	"TOTAL_DOS_IDLE" total INT 2Ah idle calls

Format of APM statistics:
Offset	Size	Description	(Table 1556)
 00h	DWORD	"RESUME_COUNT" total number of resumes since last APM_ENABLE
--------p-2F5482-----------------------------
INT 2F U - POWER.EXE - GET/SET APM POLLING FREQUENCY
	AX = 5482h
	BX = new polling frequency or 0000h to get current frequency
Return: AX = 0000h (successful)
	BX = current frequency if BX=0000h on entry
SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5480h,AX=5481h,AX=548Fh
--------p-2F548F-----------------------------
INT 2F U - POWER.EXE - GET/SET ???
	AX = 548Fh
	BX = ??? or 0000h to get current ???
Return: AX = 0000h (successful)
	BX = current ???
	CX = ???
SeeAlso: AX=5400h,AX=5480h,AX=5482h
--------l-2F5500-----------------------------
INT 2F U - DOS 5+ - COMMAND.COM INTERFACE
	AX = 5500h
Return: AX = 0000h if an instance of COMMAND.COM is already running
	DS:SI -> entry point table
Notes:	used to access the shareable portion of COMMAND.COM, which may have
	  been moved into the HMA; only the primary COMMAND.COM retains this
	  portion
	procedures called from a dispatcher in COMMAND's resident portion;
	  most assume that the segment address of the resident portion is on
	  the stack and are thus not of general use
SeeAlso: AX=5501h
--------l-2F5501-----------------------------
INT 2F U - DOS 5+ - ROM COMMAND.COM INTERFACE
	AX = 5501h
Return: ???
Note:	used to determine whether the caller is the first instance of ROM
	  COMMAND.COM
SeeAlso: AX=5500h
--------R-2F5600-----------------------------
INT 2F - INTERLNK - INSTALLATION CHECK
	AX = 5600h
	DX = magic value FFFFh
	BL = instance number (00h = any, 01h = first loaded, etc.)
Return: AL = FFh if installed
	    BL = instance number
	    CX = ??? (apparently always 0001h)
	    DX = resident CS of driver, DX:0000h -> header (see #1557)
SeeAlso: AX=5601h,AX=5602h,INT 60/AX=0000h

Format of Interlnk device driver header:
Offset	Size	Description	(Table 1557)
 00h	DWORD	pointer to next driver, offset=FFFFh if last driver
 04h	WORD	device attributes (see #0859,#0860)
 06h	WORD	device strategy entry point
 08h	WORD	device interrupt entry point
 0Ah  8 BYTEs	character device name "NUL2    "
 12h 165 BYTEs	???
 B7h 67 BYTEs	fully qualified Interlnk filename
 FAh  6 BYTEs	???
100h	DWORD	pointer back to Interlnk filename at offset B7h
104h  8 BYTEs	???
10Ch	BYTE	total number of redirected drives
10Dh	BYTE	first local drive number (0=A:)
10Eh	BYTE	printer redirection (0=no, 1=yes)
10Fh	BYTE	???
110h  3	BYTEs	LPT1...3 status (0FFh=invalid)
113h 26 BYTEs	remote drive number (0=A:, 0FEh=unused) (see note below)
12Dh 26 BYTEs	always 0FEh ???
147h 26 BYTEs	always 0FFh ???
Note:	to obtain the remote drive number, subtract the value at offset 10Ch
	  from the local drive number before indexing into the table at 113h
	  (example: if local drives F, G, H are remote drives C, F, E then
	  the first three bytes at offset 113h are 02h, 05h, 04h)
	for each instance of Interlnk, an extra device driver is loaded, but
	  all have the same device name NUL2
SeeAlso: #0858 at INT 21/AH=52h
--------R-2F5601-----------------------------
INT 2F - INTERLNK - CHECK IF REDIRECTED DRIVE
	AX = 5601h
	DX = magic value FFFFh
	BH = drive number (0=A:)
	BL = 00h
Return: (as for AL=00h if redirected drive)
SeeAlso: AX=5600h
--------R-2F5602-----------------------------
INT 2F - INTERLNK - GET ???
	AX = 5602h
	DX = magic value FFFFh
Return: CX = ???
SeeAlso: AX=5600h
----------2F57-------------------------------
INT 2F U - ???
	AH = 57h
	???
Return: ???
Note:	reportedly used by Iomega Corp.
--------c-2F5758BX4858-----------------------
INT 2F U - Helix Multimedia Cloaking - CACHECLK - INSTALLATION CHECK
	AX = 5758h
	BX = 4858h ('HX')
	DX = 4443h ('DC')
	CX <> 5758h
Return: BX = 6878h if installed
	DX = 6463h if installed
		CX = version (CH=major,CL=minor)
Program: CACHECLK is a 'Cloaked' disk cache by Helix Software
Note:	returns with registers unchanged if CX=5758h on entry
SeeAlso: INT 16/AX=5758h/BX=4858h,INT 2F/AX=4310h"Cloaking"
--------X-2F5D00-----------------------------
INT 2F U - PCMCIA - AWARD PCDISK - GET INFO FROM DRIVER ???
	AX = 5D00h
Return: ES:BX -> ???
Note:	supported by Ventura Micro / Award PCDISK.EXE v1.02c PCMCIA/ATA driver
SeeAlso: AX=5D01h,INT 21/AX=440Dh
--------X-2F5D01-----------------------------
INT 2F U - PCMCIA - AWARD PCDISK - PUT INFO INTO DRIVER ???
	AX = 5D01h
	ES:BX -> ???
Return: nothing
Note:	supported by Ventura Micro / Award PCDISK.EXE v1.02c PCMCIA/ATA driver
SeeAlso: AX=5D00h,INT 21/AX=440Dh
--------s-2F60FFDL00-------------------------
INT 2F U - IPLAY v1.00b - INSTALLATION CHECK
	AX = 60FFh
	DL = 00h (function number)
	BX = 5344h ('SD')
	CX = 4D50h ('MP')
Return: AX = 4F4Bh ('OK') if installed
Program: IPLAY is the Inertia Player by Prime and Excalibur for .MODules
	  (digitized music files)
Note:	in version 1.00b, any value for DL except 01h invokes this function
SeeAlso: AX=60FFh/DL=01h
--------s-2F60FFDL01-------------------------
INT 2F U - IPLAY v1.00b - GET DATA SEGMENT
	AX = 60FFh
	DL = 01h (function number)
	BX = 5344h ('SD')
	CX = 4D50h ('MP')
Return: AX = data segment
Program: IPLAY is the Inertia Player by Prime and Excalibur for .MODules
	  (digitized music files)
SeeAlso: AX=60FFh/DL=00h
--------v-2F6282-----------------------------
INT 2F U - PC Tools v7.0+ VDEFEND, VSAFE, VWATCH, DATAMON - SET ??? ADDRESS
	AX = 6282h
	CX:DX -> ??? or 0000h:0000h
	DI = segment of ??? record (see #1558) or 0000h/FFFFh to ignore
Return: BX = 0062h
Note:	if CX:DX = 0000h:0000h on entry, the ??? address is not changed
	  (DATAMON only)
SeeAlso: INT 13/AH=FAh"VSAFE",INT 21/AH=FAh"VDEFEND"

Format of VSAFE/VWATCH record:
Offset	Size	Description	(Table 1558)
 00h	DWORD	???
 04h	WORD	offset of ??? in record's segment
		VSAFE 2.0 sets byte at +01h to 56h or 58h
		VWATCH 2.1 sets byte at +02h to 56h or 58h
 06h  2 BYTEs	???
 08h	BYTE	??? (01h/other)
--------v-2F6284BX0000-----------------------
INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT	- INSTALLATION CHECK
	AX = 6284h
	BX = 0000h
	CX = 0000h
Return: AX = segment of resident code
	BX = 5555h
	CX = 5555h
Note:	also supported by DOS 6 UNDELETE which is licensed from PC Tools
SeeAlso: AX=6284h/BX=0001h,INT 16/AX=FFA3h
--------v-2F6284BX0001-----------------------
INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ???
	AX = 6284h
	BX = 0001h
	CX = 0001h
Return: AX:BX -> ??? data (see #1559)
	CX = BX
SeeAlso: AX=6284h/BX=0000h

Format of DPROTECT data for v9.0:
Offset	Size	Description	(Table 1559)
 00h  5 BYTEs	???
 05h	WORD	resident code segment (may be segment of DWORD at +03h)
 07h	DWORD	-> FAR function to sound alert tone
	???
--------v-2F6284BX0002-----------------------
INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET OPTIONS
	AX = 6284h
	BX = 0002h
	CX = 0002h
Return: AX = options (see #1560)
	BX = ??? (0000h for v9)
	CX = AX
	DX = BX
Note:	also supported by DOS 6 UNDELETE which is licensed from PC Tools
SeeAlso: AX=6284h/BX=0000h,AX=6284h/BX=0003h

Bitfields for DATAMON/DPROTECT options:
Bit(s)	Description	(Table 1560)
 1	???
 12	disabled
 13	using Delete Sentry
 14	using Delete Tracker
--------v-2F6284BX0003-----------------------
INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - SET OPTION??? FLAGS
	AX = 6284h
	BX = 0003h
	CX = flags (see #1561)
	DX = flags
	    bit 15: ???
Note:	v9 DPROTECT only checks bit 12 of CX, and ignores DX entirely
SeeAlso: AX=6284h/BX=0002h

Bitfields for DATAMON/DPROTECT CX flags:
Bit(s)	Description	(Table 1561)
 3	???
 5	???
 10	???
 12	disable DATAMON/DPROTECT
--------v-2F6284BX0004-----------------------
INT 2F U - PC Tools v8 DATAMON, v9+ DPROTECT - ???
	AX = 6284h
	BX = 0004h
	CX = 0004h
Return: AX = 5555h
	BX = ??? (0800h)
	CX = ??? (FCCCh for v8, FCCBh for v9)
--------V-2F6400-----------------------------
INT 2F - SCRNSAV2.COM - INSTALLATION CHECK
	AX = 6400h
Return: AL = installation state
	    00h not installed
	    FFh installed
Program: SCRNSAV2.COM is a screen saver for PS/2s with VGA by Alan Ballard
SeeAlso: INT 10/AX=5555h,INT 14/AX=AA01h
Index:	screen saver;SCRNSAV2
--------N-2F7000-----------------------------
INT 2F - License Service API - INSTALLATION CHECK
	AX = 7000h
	CX = license server index (0000h to 001Fh)
Return: AL = status
	    00h not installed
		 FFh installed
Notes:	The License Service API is being maintained by Microsoft but is being
	  supported by a large number of companies including Apple, Banyan,
	  DEC, HP, Lotus, Microsoft, Novell, Software Publishers Association,
	  and Wordperfect (not a complete list!)
	Each license service provider must search for the next free index
	  slot to use
SeeAlso: AX=7001h,AX=7003h,AX=7004h,AX=7005h
--------N-2F7001-----------------------------
INT 2F - License Service API - REQUEST LICENSE
	AX = 7001h
	CX = license server index (0000h to 001Fh)
	DS:DX -> SLSREQUEST structure (see #1562)
Return: AX = status
	    0000h success
	    else  provider error code
	ES:BX = provider specific handle for the license context
SeeAlso: AX=7002h,AX=7004h,AX=7005h

Format of License Service SLSREQUEST structure:
Offset	Size	Description	(Table 1562)
 00h	DWORD	(ret) status code
 04h	DWORD	(ret) handle identifying context
 08h	DWORD	(call) address of Publisher string
 0Ch	DWORD	(call) address of Product string
 10h	DWORD	(call) address of Version string
 14h	DWORD	units required
 18h	DWORD	address of comment string
 1Ch	DWORD	address of SLSCHALLENGE structure (see #1563)

Format of License Service SLSCHALLENGE structure:
Offset	Size	Description	(Table 1563)
 00h	DWORD	algorithm (currently always 1)
 04h	DWORD	secret to be challenged (1-255)
 08h	DWORD	size of challenge in bytes (1-255)
 0Ch  N BYTEs	challenge data
--------N-2F7002-----------------------------
INT 2F - License Service API - RELEASE LICENSE
	AX = 7002h
	CX = license server index (0000h to 001Fh)
	DS:DX -> SLSRELEASE structure (see #1564)
	ES:BX = provider specific handle for the license context
Return: AL = status
	    00h not installed
	    FFh installed
SeeAlso: AX=7001h,AX=7005h

Format of License Service SLSRELEASE structure:
Offset	Size	Description	(Table 1564)
 00h	DWORD	handle indentifying license context
 04h	DWORD	total units consumed
 08h	DWORD	address of comment string
--------N-2F7003-----------------------------
INT 2F - License Service API - UPDATE
	AX = 7003h
	CX = license server index (0000h to 001Fh)
	DS:DX -> SLSUPDATE structure (see #1565)
	ES:BX = provider specific handle for the license context
Return: AL = status
	    00h not installed
	    FFh installed
SeeAlso: AX=7004h,AX=7005h

Format of License Service SLSUPDATE structure:
Offset	Size	Description	(Table 1565)
 00h	DWORD	(ret) status code
 04h	DWORD	(call) handle identifying license context
 08h	DWORD	(call) total units consumed
 0Ch	DWORD	additional units required
 10h	DWORD	address of comment string
 14h	DWORD	address of SLSCHALLENGE structure (see #1563)
--------N-2F7004-----------------------------
INT 2F - License Service API - GET ERROR
	AX = 7004h
	CX = license server index (0000h to 001Fh)
	DS:DX -> SLSGETERROR structure (see #1566)
	ES:BX = provider specific handle for the license context
Return: AL = status
	    00h not installed
	    FFh installed
SeeAlso: AX=7000h,AX=7001h

Format of License Service SLSGETERROR structure:
Offset	Size	Description	(Table 1566)
 00h	DWORD	(ret) status code
 04h	DWORD	handle identifying license context
 08h	DWORD	error code
 0Ch	DWORD	buffer size in bytes
 10h  N BYTEs	data buffer
--------N-2F7005-----------------------------
INT 2F - License Service API - QUERY LICENSE
	AX = 7005h
	CX = license server index (0000h to 001Fh)
	DS:DX -> SLSQUERY structure (see #1567)
	ES:BX = provider specific handle for the license context
Return: AL = status
	    00h not installed
	    FFh installed
SeeAlso: AX=7001h,AX=7002h

Format of License Service SLSQUERY structure:
Offset	Size	Description	(Table 1567)
 00h	DWORD	(ret) status code
 04h	DWORD	handle identifying license context
 08h	DWORD	information index
 0Ch	DWORD	buffer size in bytes
 10h  N BYTEs	data buffer
--------K-2F7041BX4B70-----------------------
INT 2F U - HP 200LX - KEY200 - INSTALLATION CHECK
	AX = 7041h
	BX = 4B70h
Return: BX = 7965h if keyboard remapper KEY200.COM installed
--------d-2F7200-----------------------------
INT 2F - SRDISK v1.30+ - INSTALLATION CHECK
	AX = 7200h
Return: AL = FFh if installed
	    ES = segment of device driver header (see #1568)
Program: SRDISK is a freeware resizeable RAMdisk by Marko Kohtala
SeeAlso: AX=7201h

Format of SRDISK device driver header:
Offset	Size	Description	(Table 1568)
 00h 10 BYTEs	same as standard device driver header
		  (see #0858 at INT 21/AH=52h)
 0Ah	BYTE	number of subunits (drives) supported by driver
 0Bh  3 BYTEs	signature "SRD"
 0Eh  4 BYTEs	memory type string ("XMS "/"EMS ")
 12h  4 BYTEs	ASCII driver version string "N.NN"
 16h	BYTE	00h
 17h	BYTE	configuration format version (currently 00h or 01h)
 18h	WORD	offset of drive configuration data
--------d-2F7201-----------------------------
INT 2F - SRDISK v2.02 - GET CODE/DATA SEGMENT
	AX = 7201h
Return: AL = FFh if installed
	    ES = segment of device driver header
Program: SRDISK is a freeware resizeable RAMdisk by Marko Kohtala
SeeAlso: AX=7200h
--------!---Section--------------------------
Interrupt List, part 8 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------N-2F7A00-----------------------------
INT 2F - Novell NetWare - LOW-LEVEL API (IPX) INSTALLATION CHECK
	AX = 7A00h
Return: AL = status
	    00h not installed
	    FFh installed
		ES:DI -> FAR entry point for routines accessed exclusively
			  through INT 7A in NetWare versions through 2.0a.
			  Call with same values as INT 7A
		ES:BX -> two bytes containing IPX major/minor version
			(IPXODI v2.12; BX unchanged by older IPX drivers)
SeeAlso: AX=7AFFh/BX=0000h,AX=D800h,INT 64"Novell",INT 7A"Novell"
--------N-2F7A10-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - GET TBMI STATUS
	AX = 7A10h
Return: DH = major TBMI version number
	DL = minor TBMI version number (01h for v1.1)
	CX = segment address of TBMI resident part
	BX = status word of TBMI (see #1569)
Note:	TBMI is the Task-Switched Buffer Manager Interface
SeeAlso: AX=7A11h,AX=7A12h,AX=7A13h,AX=7A14h

Bitfields for NetWare TBMI status word:
Bit(s)	Description	(Table 1569)
 0	INT2F intercepted by TBMI
 1	INT7A intercepted by TBMI
 2	INT64 intercepted by TBMI
 3-14	reserved or unused ???
 15	outstanding task ID was detected
--------N-2F7A11-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - GET INT2F HANDLERS
	AX = 7A11h
Return: ES:BX -> old INT 2F handler
	DS:DX -> TBMI INT 2F handler
SeeAlso: AX=7A10h,AX=7A12h,AX=7A13h,AX=7A1Ah
--------N-2F7A12-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - GET INT64 HANDLERS
	AX = 7A12h
Return: ES:BX -> old INT 64 handler
	DS:DX -> TBMI INT 64 handler
SeeAlso: AX=7A10h,AX=7A11h,AX=7A13h
--------N-2F7A13-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - GET INT7A HANDLERS
	AX = 7A13h
Return: ES:BX -> old INT 7A handler
	DS:DX -> TBMI INT 7A handler
SeeAlso: AX=7A10h,AX=7A11h,AX=7A12h
--------N-2F7A14-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - GET STATISTICS
	AX = 7A14h
	CX = statistic to retrieve
	    0000h available diagnostic functions???
		Return: CX = maximum available function??? (000Ch for v2.0)
	    0001h buffers in use
		Return: CX = TBMI buffers currently in use
	    0002h maximum buffers used
		Return: CX = maximum number of buffers ever in use
	    0003h unavailable buffers
		Return: CX = count of unavailable TBMI buffers
	    0004h old interrupt usage
		Return: CX = TBMI accesses to intercepted old vectors INT 2F,
			      INT 64, and INT 7A
	    0005h far call usage
		Return: CX = TBMI accesses to IPX/SPX far call handler (not
			      including internal accesses)
	    0006h task buffering
		Return: CX = TBMI task buffering status (enabled/disabled or
			      disable/enable switch count???)
	    0007h current task ID
		Return: CX = TBMI current task ID number (0000h if ???)
	    0008h outstanding ID count
		Return: CX = number of outstanding TBMI IDs
	    0009h configured ECBs
		Return: CX = number of TBMI Event Control Blocks configured
	    000Ah configured data ECBs
		Return: CX = number of TBMI data ECBs configured
	    000Bh configured sockets
		Return: CX = number of TBMI sockets configured (from NETCFG)
	    000Ch current sockets
		Return: CX = number of TBMI sockets currently in use
Return: BX = maximum supported subfunction (000Ch)
SeeAlso: AX=7A10h
--------N-2F7A15-----------------------------
INT 2F OU - Novell NetWare - TBMI v1.1 only - RESET ???
	AX = 7A15h
Return: BX = new value of ???
Desc:	set ??? to its default value
Note:	this call is a NOP under TBMI v2.0 (TBMI2)
SeeAlso: AX=7A17h
--------N-2F7A16-----------------------------
INT 2F OU - Novell NetWare - TBMI v1.1 only - ???
	AX = 7A16h
	CX = ???
	???
Return: ???
Note:	this call is a NOP under TBMI v2.0 (TBMI2)
--------N-2F7A17-----------------------------
INT 2F OU - Novell NetWare - TBMI v1.1 only - ???
	AX = 7A17h
	???
Return: BX = old value of ???
	CX = new value of ???
Note:	this call is a NOP under TBMI v2.0 (TBMI2)
SeeAlso: AX=7A15h
--------N-2F7A18-----------------------------
INT 2F U - Novell NetWare - TASKID v1.0 - INSTALLATION CHECK
	AX = 7A18h
Return: AL = FFh if installed
	    BX = configuration flags (see #1570)
	    CX = resident code segment
SeeAlso: AX=7A10h

Bitfields for NetWare TASKID configuration flags:
Bit(s)	Description	(Table 1570)
 0	INT 2F hooked
 3	INT 08 hooked
 other	unused
--------N-2F7A19-----------------------------
INT 2F U - Novell NetWare - TASKID v1.0 - GET INT 08 HANDLERS
	AX = 7A19h
Return: AL = FFh
	DS:DX -> TASKID INT 08 handler
	ES:BX -> original INT 08 handler
--------N-2F7A1A-----------------------------
INT 2F U - Novell NetWare - TASKID v1.0 - GET INT 2F HANDLERS
	AX = 7A1Ah
Return: AL = FFh
	DX:DX -> TASKID INT 2F handler
	ES:BX -> original INT 2F handler
SeeAlso: AX=7A11h,AX=7A19h
--------N-2F7A1B-----------------------------
INT 2F U - Novell NetWare - TASKID v1.0 - GET DIAGNOSTICS INFORMATION
	AX = 7A1Bh
	CX = desired information
	    0000h supported functions
		 0001h TASKID ID number
		Return: CX = ID number
	    0002h set-ID count
		Return: CX = ID set count
Return: AL = FFh
	BX = highest supported subfunction number (0002h)
SeeAlso: AX=7A14h,AX=7A18h
--------N-2F7A1C-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - ???
	AX = 7A1Ch
	BP = ???
	CX:DX = ???
Return: AX = 70FFh
--------N-2F7A1D-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - ???
	AX = 7A1Dh
	???
Return: ES = ???
	???
	SI destroyed
--------N-2F7A1E-----------------------------
INT 2F U - Novell NetWare - TBMI v1.1+ - ???
	AX = 7A1Eh
	ES:SI -> ???
	???
Return: ???
--------N-2F7A20BX0000-----------------------
INT 2F - Novell NetWare - Adv NetWare 4.0 DOS Requester - GET VLM CALL ADDRESS
	AX = 7A20h
	BX = 0000h
Return: AX = 0000h on success (installed)
	    ES:BX -> far call address for DOS Requester (see #1571)
Notes:	the DOS Requester replaces the NetWare Shell (ANETx, NETx) on
	  NetWare LAN's as of the release of Advanced NetWare 4.0 (1993).  It
	  is backward compatible with NetWare 2.1x through 3.11 servers as
	  well.	 Note that there was a NetWare 4.0 in the early 1980's, which
	  can cause confusion.
	this call is used as the installation check by VLM.EXE, which is the
	  loader for all the modules of the DOS Requester
	.VLMs are standard old .EXE format executables whose normal entry point
	  merely terminates to prevent loading from the command line.  The
	  real entry point is found by looking at the VLM header at the
	  beginning of the load image (see #1574)
Index:	installation check;NetWare 4.0 DOS Requester

(Table 1571)
Call DOS Requester entry point with:
	STACK:	WORD	destination function
		WORD	destination VLM ID (see #1573)
		WORD	source VLM ID (0000h = application program)
	registers as appropriate for function
Return: AX = status code (0000h,8811h,8846h,8848h,8853h) (see #1572)
	other registers as appropriate for function
	STACK popped

(Table 1572)
Values for VLM status code:
 0000h	successful
 88xxh	error generated by requester
 8801h	invalid or non-attached connection handle
 8803h	cannot add CDS
 8804h	bad path
 8811h	nonexistent function called
 8836h	attempted function with invalid parameter
 8846h	???
 8848h	non-loaded or nonexistent VLM called
 884Dh	no more SFT entries (too many handles)
 8850h	too many reply fragments
 8853h	???
 89xxh	error generated by server, low byte = return code from server

(Table 1573)
Values for VLM identifier:
 0001h	VLM.EXE		Virtual Loadable Modules manager (see also #1575)
 0010h	CONN.VLM	connection table manager (see also #1576)
 0020h	TRAN.VLM	transport protocol multiplexor (see also #1578)
 0021h	IPXNCP.VLM	transport protocol implementation using IPX (see #1580)
 0022h	reserved for TCPNCP.VLM
 0030h	NWP.VLM		NetWare protocol multiplexor (see also #1581)
 0031h	BIND.VLM
 0032h	NDS.VLM		NetWare Directory Services (see also #1582)
 0033h	PNW.VLM		Personal NetWare
 0034h	RSA.VLM		RSA encryption for directory services re-authentication
 0040h	REDIR.VLM	DOS redirector (see also #1583)
 0041h	FIO.VLM		file I/O (see also #1585)
 0042h	PRINT.VLM	printer redirector (see also #1586)
 0043h	GENERAL.VLM	misc functions for NETx and REDIR (see also #1587)
 0050h	NETX.VLM	NetWare shell compatibility (see also #1588)
 0060h	AUTO.VLM	auto-reconnect/auto-retry
 0061h	SECURITY.VLM	enhanced security module
 0100h	NMR.VLM		NetWare management responder

Format of VLM header:
Offset	Size	Description	(Table 1574)
 00h	DWORD	-> initialization entry point
 04h	DWORD	-> VLM API entry point
 08h	DWORD	-> ??? entry point
 0Ch	DWORD	-> ??? entry point
 10h	DWORD	-> ??? entry point
	...
 var	DWORD	00000000h (end of entry point list)
      4 BYTEs	signature "NVlm"
	WORD	VLM identifier
Note:	the number of entry points in the header is reported as "Func" in the
	  VLM /D display.

(Table 1575)
Call VLM Manager (VLM.EXE, ID 0001h) with:
Func	Description/Registers
 01h	VLM Statistics

(Table 1576)
Call Connection Manager (CONN.VLM, ID 0010h) with:
Func	Description/Registers
 01h	Conn Get Version
 03h	Conn Statistics
 04h	Conn Alloc Handle
 05h	Conn Validate Handle
	CX = connection handle
	Return: AX = 0000h if valid handle
 06h	Conn Free Handle
 07h	Conn Get Entry Field
	BH = connection parameter (see #1577)
	CX = connection handle
	DX = value if BH is non-array parameter
	DH = offset in array if BH is array parameter
	DL = number of bytes to copy if BH is array
	ES:DI -> return buffer if BH is array
	Return: AX = 0000h if successful
		DX = value if non-array parameter
		DH = maximum number of bytes in buffer if array parameter
		DL = number of bytes copied if array
		BX destroyed
 08h	Conn Set Entry Field
	BH = connection parameter (see #1577)
	CX = connection handle
	DX = value if BH is non-array parameter
	DH = offset in array if BH is array parameter
	DL = number of bytes to copy if BH is array
	DS:SI -> buffer if BH is array
	Return: AX = 0000h if successful
		DH = maximum number of bytes in buffer
		DL = number of bytes copied
		BX destroyed
 09h	Conn Reset Entry Field
	BH = connection parameter (see #1577)
	CX = connection handle
	Return: AX = 0000h if successful
		BX,DX destroyed
 0Ah	Conn Lookup Handle
 0Dh	Conn Name Lookup
	BL = lookup type (00h equal, 40h not equal)
	BH = connection parameter (see #1577)
	CX = connection handle, 0000h if first
	DX = value if BH is non-array parameter
	DH = offset in array if BH is array parameter
	DL = number of bytes to copy if BH is array
	DS:SI -> buffer if BH is array
	Return: AX = 0000h if successful
		CX = handle matching given parameters
 0Eh	Conn Name To Handle
	DS:SI -> uppercased server name
	CX = length of server name, 0000h if ASCIZ name
	Return: AX = error code or 0000h if successful
		    CX = connection handle if successful
 0Fh	Conn Get Num Connections
	Return: DX = number of connections
		CX destroyed

(Table 1577)
Values for NetWare Connection Manager CEI (Connection Entry Information):
 number	flags	description
 00h	FR	error
 1	WL	VLM id of transport protocol (NDS/BIND/PNW)
 2	FR	???
 3	F	authenticated
 4	F	packet burst supported
 5	FR	SFT3 change
 6	FR	???
 7	FR	packet burst reset needed
 8	W	server version
 9	W	???
 0Ah	W	distance to server
 0Bh	W	???
 0Ch	B	NCP sequence number
 0Dh	W	connection number
 0Eh	B	???
 0Fh	WL	VLM id for transport protocol (IPXNCP)
 10h	W	???
 11h	A	transport specific buffer
		12 byte server address
		6 byte	router address
		2 byte round trip time
 12h	FR	broadcast message waiting
 13h	W	large internet packets supported
 14h	B	security options
		01h CRC enabled
		02h packet signing enabled
		20h packet signing active
 15h	W	???
 16h	FR	???
Note:	flag meanings
	    F=flag value
	    B=byte value
	    W=word value
	    A=array
	    R=resettable
		 L=settable only before authentication
	    others=read only
SeeAlso: #1576

(Table 1578)
Call TRAN.VLM (VLM ID 0020h) with:
Func	Description/Registers
 01h	Tran Get Version
 03h	Tran Statistics
 06h	Tran Request Reply (see INT 21/AH=F2h)
	AL = request code (see #1266 at INT 21/AH=F2h)
	BH = error handler flag
	    00h default error handler
	    01h return network errors to caller
	    02h handle network errors in requester
	BL = request list length (max 5 fragments) (see #1579)
	CX = connection handle
	DH = 00h (reserved)
	DL = reply list length (max 5 fragments) (see #1579)
	DS:SI -> address list
	ES:DI -> address list
	Return: AX = error code, 0000h if successful
		BX,DX destroyed
		reply buffer updated if successful
 08h	Tran Schedule/Cancel Event
 09h	Tran Get Max Size
 0Ah	Tran Broadcast Mux

Format of TRAN.VLM request/reply fragment descriptor (array):
Offset	Size	Description	(Table 1579)
 00h	DWORD	address of buffer
 04h	WORD	length of buffer

(Table 1580)
Call IPXNCP.VLM (VLM ID 0021h) with:
Func	Description/Registers
 01h	IPX Get Version
 03h	IPX Statistics
 06h	IPXNCP Request Reply???
	functionally equivalent to Tran Request Reply???

(Table 1581)
Call NWP.VLM (VLM ID 0030h) with:
Func	Description/Registers
 01h	NWP Get Version
 03h	NWP Statistics
 04h	NWP Connect
 05h	NWP Disconnect
 06h	NWP Attach
 08h	NWP Login
 09h	NWP Logout
 0Ah	NWP Get Bindery Object/Get Message Handler
 0Eh	NWP Ordered Send To All
 0Fh	NWP Preferred Handler
 10h	NWP ???
	AL = subfunction
	    01h get security flags (see also INT 21/AX=B301h)
		Return: BX:CX indicates signature level
				= 0100h:0000h if signature level=0
				= 0300h:0000h if signature level=1
				= 0302h:0000h if signature level=2
				= 0302h:0202h if signature level=3
	    02h create session keys (see also INT 21/AX=B302h)
		CX = server connection handle
		DS:SI -> 24-byte input buffer
	    04h set security flags (see also INT 21/AX=B304h)
		BL:CL = new flags
	    06h renegotiate security level (see also INT 21/AX=B306h)
		CX = server connection number (01h-08h)

(Table 1582)
Call NDS.VLM (VLM ID 0032h) with:
Func	Description/Registers
 01h	NDS Get Version
 03h	NDS Statistics
 08h	NDS Fragment Request
 0Ch	NDS ???
	BX = subfunction
	    0000h get default name context
		ES:DI -> output buffer
	    0002h read from TDS
		CX = reply buffer length
		DX = 0110h ???
		SI = offset in TDS
		ES:DI -> reply buffer
	    0003h write to TDS
	    0005h "NWDSChangeResourceConnection/Lock Connection"
		CX = connection handle
		DL = subfunction (00h-09h)
		    04h = NWDSChangeResourceOnConnection
		    07h = NWDSChangeResourceOnConnection
		    08h = NWDSLockConnection
		 0007h "NWDSSetMonitoredConnection"
	    000Ah set NDS CEI Info
		DL = buffer length
		DS:SI -> input buffer

(Table 1583)
Call REDIR.VLM (VLM ID 0040h) with:
Func	Description/Registers
 01h	Redir Get Version
 03h	Redir Statistics
 04h	Redir Build SFT (see INT 21/AH=B4h"NetWare")
	CX = connection handle
	ES:DI -> SFT build request (see #1584)
	Return: AX = 0000h if successful
		    BX = DOS file handle
 05h	Redir DOS To NW Handle
 08h	Redir Specific
	BX = 0000h get item
	    DS:SI -> ASCIZ string "LPTx" (x='1'-'9') or drive spec ("d:")
	    ES:DI -> reply buffer for "\\server\resource",00h,"path",00h

Format of NetWare SFT build request:
Offset	Size	Description	(Table 1584)
 00h  6 BYTEs	NetWare handle
 06h 18 BYTEs	???
 18h	LONG	file size
 1Ch  8 BYTEs	???

(Table 1585)
Call File I/O FIO.VLM (VLM ID 0041h) with:
Func	Description/Registers
 01h	FIO Get Version
 03h	FIO Statistics
 04h	FIO Remote Copy

(Table 1586)
Call PRINT.VLM (VLM ID 0042h) with:
Func	Description/Registers
 01h	Print Get Version
 03h	Print Statistics
 04h	Print Get/Set Data
 05h	Print Open Capture File
 07h	Print Get Num Of Printers
 08h	Print Redirection
	CX = connection handle
	DX = printer (0=LPT1)
	BX = destination
	    0000h redirect device to queue
		AX = length of queue name, 0000h to use queue ID
		DS:SI -> uppercased ASCIZ queue name
		ES:DI -> queue ID, 0000h:0000h to use queue name
	    0003h redirect device to file
		AX = 0000h or 4E57h ('NW')
		ES:DI -> ASCIZ path of file
	Return: AX = 0000h if successful
 09h	Print Flush And Close Job
 0Ch	Print Get/Set Banner Name

(Table 1587)
Call GENERAL.VLM (VLM ID 0043h) with:
Func	Description/Registers
 01h	Gen Get Version
 03h	Gen Statistics
 04h	Gen Get/Set Primary
 09h	Gen Return Drive Info

(Table 1588)
Call NETX.VLM (VLM ID 0050h) with:
Func	Description/Registers
 01h	NetX Get Version
 03h	NetX Statistics

(Table 1589)
Call SECURITY.VLM (VLM ID 0061h) with:
Func	Description/Registers
 04h	???
	AL = subfunction
	    01h compute session key
		DS:SI -> 24-byte input buffer
		ES:DI -> 8-byte output buffer
--------N-2F7A20BX0001-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM CallA ADDRESS
	AX = 7A20h
	BX = 0001h
Return: AX = 0000h if request was handled
	    ES:BX -> CallA entry point (see #1590)

(Table 1590)
Call VLM CallA entry point with:
	AX = function
	    0000h submit
	    0001h cancel (not implemented)
	ES:DI -> Overlay Asynchronous Control Block structure (see #1591)

Format of Overlay Asynchronous Control Block (OACB):
Offset	Size	Description	(Table 1591)
 00h	DWORD	link to next OACB, 0000h:0000h if last
 04h	DWORD	callback address or 0000h:0000h
 08h	BYTE	InUse flag (00h if complete)
 09h	BYTE	flag, reserved for VLM use
 0Ah	WORD	destination VLM
 0Ch	WORD	destination function
 0Eh	WORD	temporary storage for VLM.EXE
 10h  6 BYTEs	reserved
 16h  6 DWORDs	EAX,EBX,ECX,EDX,ESI,EDI
 2Eh  4 WORDs	DS,ES,FS,GS (FS and GS not used)
--------N-2F7A20BX0002-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM MULTIPLEX ADDRESS
	AX = 7A20h
	BX = 0002h
Return: AX = 0000h
	ES:BX -> VLM multiplex entry point (see #1592)
Note:	for v1.10, this function is only available while VLM.EXE is loading
	  the .VLM modules, because ES is destroyed on return

(Table 1592)
Call DOS Requester entry point with:
	BX = function???
	    0000h
		DX = ???
		DI = ???
		BP = ???
	    0002h
		CX = ???
	    0003h
		DX = ???
		BP = ???
	    0006h
		AH = subfunction???
		AL = ???
		STACK: variable (0, 4, 10, 14 bytes seen)
--------N-2F7A20BX0003-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM PARSE API ADDRESS
	AX = 7A20h
	BX = 0003h
Return: AX = 0000h if request was handled
	    ES:BX -> VLM parse API entry point
--------N-2F7A20BX0004-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM MULTICAST CALLOUT
	AX = 7A20h
	BX = 0004h
Return: AX = 0000h if request was handled
	    ES:BX -> VLM multicast data (see #1593)

Format of DOS Requester data:
Offset	Size	Description	(Table 1593)
 00h	DWORD	pointer to ??? (code)
 04h  4 BYTEs	???
 08h	DWORD	pointer to ??? (code) (see #1594)
	???

(Table 1594)
Call offset 08h function with:
	AL = function (00h-07h)
	???
Return: ???
--------N-2F7A20BX0005-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM INT 24 ADDRESS
	AX = 7A20h
	BX = 0005h
Return: AX = 0000h if request was handled
		 ES:BX -> VLM INT 24 handler
--------N-2F7A20BX0006-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT
	AX = 7A20h
	BX = 0006h
Return: AX = 0000h if request was handled
	    ES:BX -> ??? entry point (RETF in v1.03 and v1.10)
--------N-2F7A20BX0007-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT
	AX = 7A20h
	BX = 0007h
Return: AX = 0000h
	ES:BX -> ??? entry point (RETF in v1.03 and v1.10)
--------N-2F7A20BX0008-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT
	AX = 7A20h
	BX = 0008h
Return: AX = 0000h
	ES:BX -> ??? entry point (RETF in v1.03 and v1.10)
--------N-2F7A20BX0080-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT
	AX = 7A20h
	BX = 0080h
Return: AX = 0000h
	ES:BX -> ??? entry point (RETF in v1.03 and v1.10)
Note:	this function is identical to AX=7A20h/BX=0006h in v1.03 and v1.10
--------N-2F7A20BX0081-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT
	AX = 7A20h
	BX = 0081h
Return: AX = 0000h
	ES:BX -> ??? entry point (RETF in v1.03 and v1.10)
Note:	this function is identical to AX=7A20h/BX=0007h in v1.03 and v1.10
--------N-2F7A20BX0082-----------------------
INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT
	AX = 7A20h
	BX = 0082h
Return: AX = 0000h
	ES:BX -> ??? entry point (RETF in v1.03 and v1.10)
Note:	this function is identical to AX=7A20h/BX=0008h in v1.03 and v1.10
--------N-2F7A21-----------------------------
INT 2F C - Novell NetWare - DOS Requester - BROADCAST CALLBACK
	AX = 7A21h
	CX = server connection
Return: CX = 0000h if broadcast handled
SeeAlso: AX=7A22h,AX=7A85h
--------N-2F7A22-----------------------------
INT 2F C - Novell NetWare - DOS Requester - BROADCAST/SFT3 INFORM
	AX = 7A22h
	DL = function
	    21h ('!') broadcast
	    40h ('@') SFT3 inform
Return: AX = 0000h if event handled
SeeAlso: AX=7A21h
--------N-2F7A2F-----------------------------
INT 2F U - Novell NetWare - IPXODI v2.12 - GET ???
	AX = 7A2Fh
Return: AX = 0000h if supported and active
	    BX = version??? (0001h)
	    ES:DI -> entry point (see #1595)
Note:	IPXODI v2.12 is distributed as part of the Personal NetWare system
	  bundled with Novell DOS 7
SeeAlso: INT 7A/BX=001Fh

(Table 1595)
Call IPXODI entry point with:
	BX = function
	    0000h ???
		ES:SI -> ??? data
		 0001h ???
		AX = ???
		Return: ES:SI -> ??? data
	    0002h get ??? address
		Return: ES:SI -> ??? buffer
	    0003h send SPX packet???
		AL = ???
		CX = ???
		DX = ???
		SI = ???
		Return: ??? (registers from a call to INT 7A/BX=0016h)
Return: BX corrupted
--------N-2F7A2FBX0EDC-----------------------
INT 2F U - Personal NetWare - HRMIB - UNINSTALL
	AX = 7A2Fh
	BX = 0EDCh
Return: ???
SeeAlso: AX=7AA0h
--------N-2F7A40-----------------------------
INT 2F U - Novell NetWare - TCP/IP Protocol Stack - INSTALLATION CHECK
	AX = 7A40h
Return: AX = 7AFFh if installed
	    BX = ??? bit flags (see #1596)
		 CX = version (CH=major, CL=minor)
	    DX = 0000h
	    ES:DI -> entry point for TCP/IP stack (see #1597)
Notes:	Novell's LAN Workplace for DOS TCPIP.EXE also supports this interface
	this function is also supported by the Beame&Whiteside BWLWP40 shim,
	  but it only returns AL and ES:DI, and does not support AX=7A41h
SeeAlso: AX=7A41h,INT 15/AX=DE2Eh,INT 60"Excelan"

Bitfields for returned BX:
Bit(s)	Description	(Table 1596)
 0	???
 1	???
 15-2	reserved???

(Table 1597)
Call NetWare TCP/IP entry point with:
	ES:SI -> parameter block (see #1598)
Return: ES:SI parameter block updated

Format of NetWare TCP/IP parameter block:
Offset	Size	Description	(Table 1598)
 00h  4 BYTEs	???
 04h	WORD	(ret) ???
 06h	WORD	(ret) ???
 08h	DWORD	-> FAR routine called if bit 7 of function code set
 0Ch	BYTE	flags???
 0Dh  7 BYTEs	???
 14h	BYTE	(ret) ???
 15h	BYTE	(call) function code (bit 7 set if ???) (see #1599)
 16h	BYTE	socket number
 17h	BYTE	(ret) result or error code
 18h  4 WORDs	parameter words 0 to 3 (see #1599 for usage)
 20h	WORD	length of packet sent/received
 22h	WORD	number of pointer/length pairs following
 24h 6N BYTEs	buffer descriptors, each
		Offset	Size	Description
		 00h	DWORD	pointer to buffer
		 04h	WORD	length of buffer

(Table 1599)
Values for NetWare TCP/IP function code:
 01h	"accept"
 02h	"bind"
 03h	close socket
	Call:	socket number field set
 04h	"connect"
 05h	get IP address
	Call:	socket number field set to 0000h
	Return:	parameter words 1 and 2 contain caller's IP address
 06h	get hardware address
 07h	"getpeername"
 08h	get socket name
 0Ah	get netmask
 0Bh	"ioctl"
 0Ch	"listen"
 0Dh	"select"
 10h	"shutdown"
 11h	open socket
	Call:	socket number field set to 0000h
		parameter word 0 = desired protocol (6 = TCP, 17 = UDP)
	Return: socket number set
 12h	"read"
 13h	"recvfrom"
	Call:	socket number set
		packet length and buffer descriptors set
	Return:	packet length and receive buffers updated
		parameter word 1 = source port number
		parameter words 2 and 3 = source IP address
 14h	"write"
 15h	"sendto"
	Call:	socket number set
		flags field = ???
		parameter word 0 = 0000h
		parameter word 1 = destination port number
		parameter words 2 and 3 = destination IP address
		packet length and buffer descriptors set
 16h	get BOOTP data
Note:	these functions are based on the Unix socket interface
--------N-2F7A41-----------------------------
INT 2F - Novell NetWare - TCP/IP Protocol Stack - WINDOWS SUPPORT???
	AX = 7A41h
	ES:DI -> FAR entry point for ??? (will be called with BX=1,2,3,4)
Return: AX = 7AFFh if supported
	    BX = ??? (see #1596)
	    CX = version (CH=major, CL=minor)
	    DX = 0000h
	    ES:SI -> DWORD containing passed value of ES:DI
	    ES:DI -> entry point for TCP/IP stack
Notes:	Novell's LAN Workplace for DOS TCPIP.EXE also supports this interface
	the pointer which is set to ES:DI is cleared to 0000h:0000h when
	  a Windows exit broadcast is received
SeeAlso: AX=7A40h
--------N-2F7A42-----------------------------
INT 2F - Novell NetWare - TCPIP.EXE v4.1 - GET ??? ENTRY POINT
	AX = 7A42h
Return: AX = 7AFFh if supported
	    ES:DI -> ??? entry point (see #1600)

(Table 1600)
Call NetWare TCPIP.EXE entry point with:
	DX = ???
	ES:DI -> ??? (see #1601)
Return: AX = 0000h
	other registers destroyed

Format of data buffer:
Offset	Size	Description	(Table 1601)
 00h	WORD	offset of WORD ??? or 0000h
 02h	WORD	offset of DWORD ??? or 0000h
 04h	WORD	offset of DWORD ??? or 0000h
--------N-2F7A43-----------------------------
INT 2F - Novell NetWare - TCPIP.EXE v4.1 - GET ???
	AX = 7A43h
Return: AX = 7AFFh if supported
	    DX = offset of ???
SeeAlso: AX=7A44h
--------N-2F7A44-----------------------------
INT 2F - Novell NetWare - TCPIP.EXE v4.1 - SET ???
	AX = 7A44h
	DX = offset of ??? (see AX=7A43h)
Return: AX = 7AFFh if supported
SeeAlso: AX=7A43h
--------N-2F7A4C-----------------------------
INT 2F - Novell NetWare - TCPIP.EXE v4.1 - GET ???
	AX = 7A4Ch
Return: AX = 7AFFh if supported
	    BX = ??? (0037h)
	    CX = ??? (001Ch)
--------N-2F7A4DBX0001-----------------------
INT 2F - Novell NetWare - ???
	AX = 7A4Dh
	BX = 0001h
	ES:DI -> ???
Return: AL = FFh if ???
	    ES:DI -> ???
Note:	called by NETBIOS.EXE v3.01
--------N-2F7A4E-----------------------------
INT 2F - Novell LAN Workplace for DOS - RARPD.EXE - INSTALLATION CHECK
	AX = 7A4Eh
Return: AX = 7AFFh if installed
SeeAlso: AX=7A4Fh"RARPD"
--------N-2F7A4F-----------------------------
INT 2F - Novell LAN Workplace for DOS - RARPD.EXE - UNINSTALL
	AX = 7A4Fh
Return: AX = 7AFFh if installed
	DX,ES destroyed
Note:	this call conflicts with SNMP.EXE (both RARPD and SNMP are supplied
	  with LAN Workplace for DOS!), such that running SNMP will uninstall
	  RARPD as SNMP checks whether it is already installed!
SeeAlso: AX=7A4Eh"RARPD",AX=7A4Fh/BX=0001h
--------N-2F7A4FBX0001-----------------------
INT 2F - Novell NetWare - SNMP.EXE - INSTALLATION CHECK
	AX = 7A4Fh
	BX = 0001h
Return: AX = 7AFFh if installed
Note:	this call conflicts with RARPD.EXE (both SNMP and RARPD are supplied
	  with LAN Workplace for DOS!), such that running SNMP will uninstall
	  RARPD as SNMP checks whether it is already installed!
SeeAlso: AX=7A4Fh"RARPD",AX=7A4Fh/BX=0002h
--------N-2F7A4FBX0002-----------------------
INT 2F - Novell NetWare - SNMP.EXE - ???
	AX = 7A4Fh
	BX = 0002h
Return: AL = status
	    4Fh if failed
	    FFh if successful
SeeAlso: AX=7A4Fh/BX=0001h
--------N-2F7A80-----------------------------
INT 2F C - Novell NetWare - SHELL 3.01d BROADCAST - ABNORMAL EXIT
	AX = 7A80h
Return: nothing
Notes:	called on abnormal exit of the NetWare shell to notify other Novell
	  TSRs that it is unsafe to call the shell in the future.
	must be passed through so that all interested programs see the exit
	on receiving this call, IPXODI clears an internal pointer to a
	  default value; Novell's NETBIOS.EXE clears its INT 21h pointer to
	  0000h:0000h and stops calling it
SeeAlso: AX=7A81h
--------N-2F7A81-----------------------------
INT 2F C - Novell NetWare - SHELL 3.01d BROADCAST - SET SHELL INT 21 HANDLER
	AX = 7A81h
	CX:DX -> shell's INT 21h entry point
Return: nothing
Notes:	the shell calls this function as it loads to allow interested TSRs
	  and drivers to make a local copy of the shell's entry point
	must be passed through so that all interested programs see it
--------N-2F7A85-----------------------------
INT 2F C - Novell NetWare - shell 3.01 - BROADCAST INFORM
	AX = 7A85h
	CX = broadcast server number
Return: CX = 0000h if broadcast message handled by another program
	CX unchanged if broadcast not handled
SeeAlso: AX=7A21h
--------N-2F7A90-----------------------------
INT 2F U - Novell NetWare - NETBIOS.EXE 3+ - INSTALLATION CHECK
	AX = 7A90h
Return: AL = 00h if present
	    BX = ???
	    CX = PSP segment of NETBIOS resident code
SeeAlso: AX=7AFEh
--------N-2F7AA0-----------------------------
INT 2F U - Personal NetWare - HRMIB - ???
	AX = 7AA0h
	BX = function
	    0000h ???
	    0001h ???
Return: ???
SeeAlso: AX=7A2Fh/BX=0EDCh
--------N-2F7AC1-----------------------------
INT 2F - LAN HiJack - LHR - DISABLE???
	AX = 7AC1h
Program: LAN HiJack is a NetWare utility by KDS Software which allows a user
	  to take over control of a workstation remotely; LHR is the program
	  run on the slave workstation
SeeAlso: AX=7AC8h,AX=7AC9h,AX=7ACFh
--------N-2F7AC2-----------------------------
INT 2F - LAN HiJack - LHR - SYNCHRONIZE SHIFT STATES???
	AX = 7AC2h
Note:	sets BIOS keyboard status byte to an internal variable
SeeAlso: AX=7AC3h,AX=7ACFh
--------N-2F7AC3-----------------------------
INT 2F - LAN HiJack - LHR - CLEAR ??? FLAG
	AX = 7AC3h
SeeAlso: AX=7AC2h,AX=7ACFh
--------N-2F7AC8-----------------------------
INT 2F - LAN HiJack - LHR - ENABLE FUNCTIONS
	AX = 7AC8h
	BL = function(s) to enable (see #1602)
SeeAlso: AX=7AC1h,AX=7AC9h,AX=7ACFh

Bitfields for LAN HiJack function(s) to enable/disable:
Bit(s)	Description	(Table 1602)
 0	???
 1	remote keyboard enabled
 2	support remote's mouse
 3-7	unused
--------N-2F7AC9-----------------------------
INT 2F - LAN HiJack - LHR - DISABLE FUNCTIONS
	AX = 7AC9h
	BL = function(s) to disable (see #1602)
SeeAlso: AX=7AC1h,AX=7AC8h
--------N-2F7ACA-----------------------------
INT 2F - LAN HiJack - LHJ - ???
	AX = 7ACAh
	BL = ???
Return: ???
Program: LAN HiJack is a NetWare utility by KDS Software which allows a user
	  to take over control of a workstation remotely; LHJ is the program
	  run on the controlling workstation
--------N-2F7ACB-----------------------------
INT 2F - LAN HiJack - LHJ - ???
	AX = 7ACBh
	BX = ???
Return: ???
Note:	this function appears to be related to the keyboard
SeeAlso: AX=7ACCh
--------N-2F7ACC-----------------------------
INT 2F - LAN HiJack - LHJ - ???
	AX = 7ACCh
	BX = ???
Return: ???
Note:	this function appears to be related to the mouse
SeeAlso: AX=7ACBh
--------N-2F7ACFBX0000-----------------------
INT 2F - LAN HiJack - LHR - INSTALLATION CHECK
	AX = 7ACFh
	BX = 0000h
Return: BX = segment of resident code if installed
Program: LAN HiJack is a NetWare utility by KDS Software which allows a user
	  to take over control of a workstation remotely; LHR is the program
	  run on the slave workstation
--------N-2F7AF0-----------------------------
INT 2F - Novell NetWare - DOSNP.EXE v1.30G - INSTALLATION CHECK
	AX = 7AF0h
Return: AL = FFh if present
	    ES = 7AF0h
		 CX = PSP segment of resident code
--------N-2F7AF1-----------------------------
INT 2F - Novell NetWare - Access Server Driver - INSTALLATION CHECK
	AX = 7AF1h
	BL = sequence number (01h first driver, 02h second, 00h no driver)
Return: AX <> 7AF1h if present
	    BH = total number of drivers
	    ---if BL nonzero on entry---
	    AL = number of ports provided by specified driver
	    ES:DI -> driver entry point
		      (see #1603,#1604,#1605,#1606,#1607,#1608,#1609,#1610)
	    ES:DX -> ID string
SeeAlso: INT 7A/BX=001Ch

(Table 1603)
Call Access Server driver "initialize port" function with:
	AH = 01h
	AL = port number (00h-0Fh)
	ES:BX -> configuration parameter block (see #1616)
	interrupts disabled
Return: CF clear if successful
	CF set on error
SeeAlso: #1604

(Table 1604)
Call Access Server driver "get port status" function with:
	AH = 02h
	AL = port number (00h-0Fh)
	interrupts disabled
Return: CF clear if successful
	    BL = transmitter status (see #1613)
	    BH = receiver status (see #1614)
	    DL = external status signals (see #1615)
	CF set on error
	interrupts disabled
SeeAlso: #1603,#1605,#1608

(Table 1605)
Call Access Server driver "get input from port" function with:
	AH = 03h
	AL = port number (00h-0Fh)
	CX = size of data buffer
	ES:BX -> buffer for data
	interrupts disabled
Return: CF clear if successful
	CF set on error
	interrupts disabled
	CX = number of bytes read
Note:	the driver will add a NUL to the buffer when a break signal is detected
SeeAlso: #1605,#1606

(Table 1606)
Call driver "send output data to port" function with:
	AH = 04h
	AL = port number (00h-0Fh)
	CX = number of bytes to send
	ES:BX -> buffer containing data
	interrupts disabled
Return: CF clear if successful
	CF set on error
	interrupts disabled
	CX = number of bytes actually written
SeeAlso: #1605,#1607

(Table 1607)
Call driver "get I/O character counts" function with:
	AH = 05h
	AL = port number (00h-0Fh)
	interrupts disabled
Return: CF clear if successful
	    BX = number of bytes pending transmission
	    CX = number of bytes available for reading
	CF set on error
	interrupts disabled
SeeAlso: #1605,#1606

(Table 1608)
Call driver "control XON/XOFF" function with:
	AH = 06h
	AL = port number (00h-0Fh)
	DL = new state
	    (00h software flow control disabled, else enabled)
	interrupts disabled
Return: CF clear if successful
	CF set on error
	interrupts disabled
SeeAlso: #1609

(Table 1609)
Call driver "get error counts and statistics" function with:
	AH = 07h
	AL = port number (00h-0Fh)
	ES:BX -> buffer for statistics (see #1617)
	interrupts disabled
Return: CF clear if successful
	    ES:BX buffer filled
	CF set on error
	interrupts disabled
SeeAlso: #1610,#1611,#1612

(Table 1610)
Call driver "general request" function with:
	AH = 08h
	AL = port number (00h-0Fh)
	DX = requested operations
	    bit 0: flush transmit buffers
	    bit 1: flush receive buffers
	    bit 4: define XON/XOFF characters
	ES:BX -> XON/XOFF characters (see #1618) if DX bit 4 set
	interrupts disabled
Return: CF clear if successful
	CF set on error
	interrupts disabled

(Table 1611)
Call driver "deadman timer management" function with:
	AH = 09h
	AL = port number (00h-0Fh)
	BX = next time interval in seconds (0000h to disable timer)
	interrupts disabled
Return: CF clear
	interrupts disabled
SeeAlso: #1612

(Table 1612)
Call driver "get buffer sizes" function with:
	AH = 0Ah
	AL = port number (00h-0Fh)
	interrupts disabled
Return: CF clear if successful
	   BX = size of transmit buffer
	   CX = size of receive buffer
	CF set on error
	interrupts disabled
SeeAlso: #1611

(Table 1613)
Values for Access Server transmitter status:
 00h	uninitialized
 01h	ready, not transmitting
 02h	transmitting
 03h	XOFF received
 04h	transmitting, buffer full
 05h	XOFF received and buffer full

(Table 1614)
Values for Access Server receiver status:
 00h	uninitialized
 01h	ready
 02h	receive buffer full, data may have been lost

Bitfields for external status signals:
Bit(s)	Description	(Table 1615)
 7,6	undefined
 5	CTS active
 4	DSR active
 3	DCD active
 2,1	undefined
 0	ring indicator

Format of Access Server configuration parameter block:
Offset	Size	Description	(Table 1616)
 00h	BYTE	receive baud rate index
		00h 50 bps, 01h 75 bps, 02h 110 bps, 03h 134.5 bps,
		04h 150 bps, 05h 300 bps, 06h 600 bps, 07h 1200 bps,
		08h 1800 bps, 09h 2000 bps, 0Ah 2400 bps, 0Bh 3600 bps,
		0Ch 4800 bps, 0Dh 7200 bps, 0Eh 9600 bps, 0Fh 19200 bps,
		10h 38400 bps, 11h 57600 bps, 12h 115200 bps
 01h	BYTE	receive bits per character (0=5 bits..3=8 bits)
 02h	BYTE	receive stop bits
 03h	BYTE	receive parity
		00h none, 01h odd, 02h even, 03h mark, 04h space
 04h	BYTE	transmit baud rate index (same as receive baud rate)
 05h	BYTE	transmit bits per character (0=5 bits..3=8 bits)
 06h	BYTE	transmit stop bits
 07h	BYTE	transmit parity (same as receive parity)
 08h	BYTE	DTR state (00h off, 01h on)
 09h	BYTE	RTS state (00h off, 01h on)
 0Ah	BYTE	flow control (00h none, 01h XON/XOFF, 02h RTS/CTS, 03h both)
 0Bh	BYTE	break control (00h off, 01h on)

Format of Access Server statistics:
Offset	Size	Description	(Table 1617)
 00h	BYTE	port number
 01h	BYTE	external status signals (see #1615)
 02h	BYTE	transmitter status (see #1613)
 03h	BYTE	receiver status (see #1614)
 04h	DWORD	number of characters received
 08h	DWORD	number of characters transmitted
 0Ch	WORD	input parity errors
 0Eh	WORD	input framing errors
 10h	WORD	lost characters due to hardware overrun
 12h	WORD	lost characters due to data buffer overrun
Note:	the counts are not allowed to wrap around; once a count reaches FFFFh
	  or FFFFFFFFh, it is no longer incremented

Format of Access Server XON/XOFF characters:
Offset	Size	Description	(Table 1618)
 00h	BYTE	04h (number of bytes following)
 01h	BYTE	transmit XON character
 02h	BYTE	transmit XOFF character
 03h	BYTE	receive XON character
 04h	BYTE	receive XOFF character
--------N-2F7AFE-----------------------------
INT 2F - Novell NetWare - DOSNP.EXE - INSTALLATION CHECK
	AX = 7AFEh
Return: AL = FFh if present
		 ES = (data???) segment of DOSNP
Program: DOSNP.EXE provides "named pipes" support for DOS workstations running
	   NetWare
Note:	the NetWare shell calls this function and refuses to load if DOSNP is
	  present
SeeAlso: AX=7A90h
--------N-2F7AFFBX0000-----------------------
INT 2F - Novell NetWare - TBMI v1.1+ - INSTALLATION CHECK / Windows SUPPORT
	AX = 7AFFh
	BX = 0000h
	CX = 4E65h ("Ne")
	DX = 7457h ("tW")
	ES:DI -> Windows support procedure (see #1619)
Return: AL = FFh if installed
	    CX = configured sockets (14h)
	    DS:SI -> data table ???
	    ES:DI -> IPX far call handler
Notes:	for IPX/SPX this call reportedly returns DS:SI pointing to the table
	  of pointers to service events queue head and tail
	this function is also supported by IPXODI; v2.12 does not change DS,
	  but does set SI to an internal address
SeeAlso: AX=7AFFh/BX=0001h

(Table 1619)
Values Windows support procedure called with:
	BP = function
	    0001h Get ECB
		BX = socket number
		Return: ES:SI -> ECB or 0000h:0000h if none available
	    0002h Count Listen ECBs
		AX = BX = socket
		Return: CX = number of listen ECBs for socket
				(must be >= 2 for SPX to work)
	    0003h ???
	    0004h Inform task switcher of ECB locations
		Note:	registers other than those listed above are equal
			  to the values when IPX was called
Note:	the support function will not be called if IPX is called with BX
	  bit 15 set
--------N-2F7AFFBX0001-----------------------
INT 2F - Novell NetWare - TBMI v1.1+, shell v3.01d - INSTALLATION CHECK???
	AX = 7AFFh
	BX = 0001h
	CX = 4E65h ("Ne")
	DX = 7457h ("tW")
Return: AL = FFh if installed
		 CX = ???  (8000h)
	    SI = ??? (or -> ???) (0002h and 0007h seen)
	    ES:DI -> IPX far call handler
	    ES:DX -> 6-byte data area ???
Note:	this function is also supported by IPXODI, but IPXODI v2.12 does not
	  return ES:DX
SeeAlso: AX=7AFFh/BX=0000h
--------d-2F7F00-----------------------------
INT 2F - Jim Harper's CD-ROM redirector SCSI driver - INSTALLATION CHECK
	AX = 7F00h
Return: AL = FFh if installed
SeeAlso: AX=7F01h,AX=7F02h,AX=7F03h
--------d-2F7F01-----------------------------
INT 2F - Jim Harper's CD-ROM redirector SCSI driver - DO COMMAND
	AX = 7F01h
	DS:DX -> command record (see #1620)
Return: AL = status
	    00h successful
	    else error code
SeeAlso: AX=7F00h,AX=7F02h,INT 11/AH=FFh"SDLP",INT 21/AX=4402h"ASPI"
SeeAlso: INT 4F/AX=8100h

Format of CD-ROM redirector command record:
Offset	Size	Description	(Table 1620)
 00h	BYTE	ID
 01h 10 BYTEs	CDB (Command Descriptor Block) for operation
 0Bh	WORD	segment of buffer
 0Dh	WORD	offset of buffer
 0Fh	BYTE	status
 10h	BYTE	sense
 12h	WORD	count
--------d-2F7F02-----------------------------
INT 2F - Jim Harper's CD-ROM redirector SCSI driver - DO RESET
	AX = 7F02h
SeeAlso: AX=7F00h,AX=7F01h
--------d-2F7F03-----------------------------
INT 2F - Jim Harper's CD-ROM redirector SCSI driver - UNINSTALL
	AX = 7F03h
Return: AL = status
	    00h successful
	    01h unable to uninstall
SeeAlso: AX=7F00h
----------2F7F24-----------------------------
INT 2F - Multiplex - ???
	AX = 7F24h
	???
Return: ???
Note:	called by PC/370, an IBM 370 emulator by Donald S. Higgins
----------2F7F26-----------------------------
INT 2F - Multiplex - ???
	AX = 7F26h
	???
Return: ???
Note:	called by PC/370, an IBM 370 emulator by Donald S. Higgins
--------N-2F8000-----------------------------
INT 2F - EASY-NET - INSTALLATION CHECK
	AX = 8000h
Return: AL = 00h not installed
	     FFh installed
Program: EASY-NET is a shareware two-machine serial-port network
--------N-2F8000-----------------------------
INT 2F - Nanosoft, Inc. TurboNET server - INSTALLATION CHECK
	AX = 8000h
Return: AL = FFh if installed
	    BX = CS of resident code
	    CX = ??? (03FCh)
Program: TurboNET is a NetBIOS-based file redirector and server; a
	  demonstration version may be downloaded from Nanosoft's BBS
SeeAlso: AX=8100h
--------t-2F8000-----------------------------
INT 2F - CS_TSR specification - TSR INSTALLATION CHECK
	AX = 8000h
	DS:SI -> 4-byte CS_TSR signature (11h 43h 53h 10h)
Return: AL = status
	    00h no CS_TSR-compliant TSRs installed
	    01h installed, but signature did not match
	    FFh installed, signature matches
		ES:DI -> resident process block (see #1621) of last installed
			  TSR (if DS:SI pointed at signature on entry)
Program: the CS_TSR specification is a standardized TSR interface by Compact
	  Soft group in Kiev, Ukraine
Desc:	determine whether any CS_TSR-compliant TSRs are installed on the
	  selected multiplex number
Range:	AH=80h to AH=FFh
SeeAlso: AX=8001h"CS_TSR",AX=8002h"CS_TSR",AX=8003h"CS_TSR"

Format of CS_TSR process block:
Offset	Size	Description	(Table 1621)
 00h  4 BYTEs	CS_TSR signature 11h 43h 53h 10h
 04h	BYTE	INT 2F multiplex number
 05h	WORD	virtual process handle (unique among loaded TSRs)
 07h  2 BYTEs	version (binary minor version, then major version)
 09h	WORD	PSP segment of TSR
 0Bh	DWORD	pointer to ASCIZ program name
 0Fh  3 BYTEs	program creation date (day, month, year)
 12h  3 BYTEs	process start time (seconds, minutes, hours)
 15h  3 BYTEs	process start date (day, month, year)
--------F-2F8000DX0000-----------------------
INT 2F - FaxBIOS interface - INSTALLATION CHECK
	AX = 8000h
	DX = 0000h
	DI = 0000h
Return: AL = FFh if installed
	DX:DI -> signature "FaxBiosjpc"
Range:	AH=80h to AH=FFh, selected by scanning multiplex numbers for signature
SeeAlso: AH=2Ah,AX=80FBh
--------N-2F8001-----------------------------
INT 2F - Nanosoft, Inc. TurboNET server - ???
	AX = 8001h
	DS:SI -> 16-byte buffer for ???
Return: AH = status
	    00h successful
	    01h error (TurboNET busy)
Note:	makes NetBIOS calls
--------t-2F8001-----------------------------
INT 2F - CS_TSR specification - GET HANDLE (TSR-SPECIFIC INSTALLATION CHECK)
	AX = 8001h
	DS:SI -> ASCIZ signature string for desired TSR (see #1622)
Return: BX = process handle or 0000h if specified TSR not installed
	ES:DI -> process block for TSR (see #1621) if BX<>0000h
Note:	A widely-available copy of ASCII billing itself as "ASCII 2.OO by
	  Nick Zaikin Jr." is in fact a hacked copy of the Compact Soft
	  ASCII v4.23 which is identical except for the changed attribution
	  and version (in fact, some instances of "4.23" were missed); the
	  hacked copy requires the signature string
	  "ASCII 2.OO by Nick Zaikin Jr." instead of the unhacked version's
	  simple signature "ASCII"
SeeAlso: AX=8000h"CS_TSR",AX=8002h"CS_TSR"

(Table 1622)
Values for CS_TSR signature strings:
 "ASCII"	ASCII, a popup ASCII table with character input
 "Halculator"	HALC, a 32-bit RPN WYSIWIH calculator with undo and ptr support
 "AntiTurbo"	AT!, an intelligent system slow-down utility
--------t-2F8002-----------------------------
INT 2F - CS_TSR specification - GET PROCESS BLOCK BY PROCESS HANDLE
	AX = 8002h
	BX = process handle for TSR (see AX=8001h"CS_TSR")
Return: ES:DI -> process block for specified TSR (see #1621)
		unchanged if no match for process handle
Note:	This function is used to allocate a process handle when the TSR
	  installs itself, by setting ES:DI to point at something other than
	  a CS_TSR process block's signature string and iterating through the
	  possible process handles (0001h to FFFFh) until ES:DI is returned
	  unchanged
SeeAlso: AX=8000h"CS_TSR",AX=8001h"CS_TSR",AX=8003h"CS_TSR"
--------t-2F8003-----------------------------
INT 2F - CS_TSR specification - CUSTOM SUBFUNCTION
	AX = 8003h
	BX = process handle for TSR (see AX=8001h"CS_TSR")
	other registers vary by TSR
Return: vary by TSR, unchanged if not supported
Program: the CS_TSR specification is a standardized TSR interface by Compact
	  Soft group in Kiev, Ukraine
SeeAlso: AX=8000h"CS_TSR",AX=8001h"CS_TSR",AX=8002h"CS_TSR"
--------F-2F80FB-----------------------------
INT 2F - FaxBIOS interface - COMMAND SUBMISSION
	AX = 80FBh
	BX = function number (see #1623)
	DX:DI -> command buffer
		  (see #1625,#1628,#1629,#1630,#1631,#1632,#1637,#1643,#1650)
Return: AL = FFh if submitted OK
	CX = result code (see #1624)
Range:	AH=80h to AH=FFh, selected by scanning multiplex numbers for signature
SeeAlso: AX=8000h"FaxBIOS",AX=CBDDh

(Table 1623)
Values for FaxBIOS function number:
 0001h	SYS_LOGIN
 0002h	SYS_LOGOUT
 0003h	SYS_GET_FAXAPP_INFO
 0004h	STAT_IO_GET
 0005h	STAT_FAXBIOS_GET
 0006h	PDIR_OPEN
 0007h	PDIR_CLOSE (see #1633)
 0008h	PDIR_READ_PERSON (see #1634)
 0009h	PDIR_PARTIAL_READ
 000Ah	PDIR_READ_GROUP
 000Bh	PDIR_READ_MEMBER_LIST
 000Ch	PDIR_WRITE_PERSON
 000Dh	PDIR_WRITE_GROUP
 000Eh	PDIR_DELETE_PERSON
 000Fh	PDIR_DELETE_GROUP
 0010h	PDIR_READ_GROUP_LIST
 0011h	PDIR_IN_GROUP
 0012h	PDIR_OUT_GROUP
 0013h	SCHED_OPEN (see #1635)
 0014h	SCHED_ADD_DEST (see #1636)
 0015h	SCHED_ADD_FILE (see #1637)
 0016h	SCHED_SET_PARAMS (see #1638)
 0017h	SCHED_CANCEL (see #1635)
 0018h	SCHED_CLOSE (see #1639)
 0019h	SLOG_OPEN (see #1640)
 001Ah	SLOG_CLOSE (see #1640)
 001Bh	SLOG_SHORT_ENV_STAT
 001Ch	SLOG_LONG_ENV_STAT
 001Dh	SLOG_DEST_STAT
 001Eh	SLOG_FILE_STAT
 001Fh	SLOG_CANCEL_ENV
 0020h	RLOG_OPEN (see #1640)
 0021h	RLOG_CLOSE (see #1640)
 0022h	RLOG_READ
 0023h	GRAPH_GET_FILE_TYPE (see #1641)
 0024h	GRAPH_EXPORT_FILE
 0025h	GRAPH_GET_LAYOUT_INFO
 0026h	GRAPH_CREATE_FILE (see #1642)
 0027h	GRAPH_CLOSE_FILE (see #1643)
 0028h	GRAPH_CREATE_PAGE (see #1644)
 0029h	GRAPH_WRITE (see #1645)
 002Ah	GRAPH_END_PAGE
 002Bh	GRAPH_OPEN_FILE (see #1646)
 002Ch	GRAPH_GOTO_PAGE (see #1647)
 002Dh	GRAPH_READ (see #1648)
 002Eh	IOCTL_GET
 002Fh	IOCTL_SET
 0030h	IOCTL_ANSWER_FAX (see #1649)
 0031h	IOCTL_DIAL (see #1650)

(Table 1624)
Values for FaxBIOS result code:
 0000h	successful
 0001h	not prepared or servicing another client (busy)
 0002h	call failed due to sharing (LOCKED)
 0003h	logged-in client limit reached (FULL)
 0004h	transport denied (TRANSPORT_DENIED)
 0005h	not implemented (NOT_IMPLEMENTED)
 0006h	aborted while in progress (ABORTED)
 0007h	permissions denied (PERMISSION_DENIED)
 0008h	requested data is no longer valid (NO_LONGER_VALID)
 0080h	unspecified system error occurred
 0081h	an internal file was not found
 0082h	an internal file could not be created
 0083h	an internal file could not be opened
 0084h	an internal file could not be closed
 0085h	error occurred writing to an internal file
 0086h	error occurred reading from an internal file
 0087h	bad or corrupted file encountered
 0088h	an access violation occurred
 0089h	an internal file is empty
 008Ah	insufficient memory to process request
 008Bh	FaxBIOS was unable to issue a handle
 008Ch	an error internal to FaxBIOS occurred
 008Dh	no room on disk
 0100h	unspecified error accessing client file
 0101h	file not found
 0102h	creation fault
 0103h	open fault
 0104h	close fault
 0105h	write fault
 0106h	read fault
 0107h	file corrupted
 0108h	access violation
 0109h	empty file
 0200h	unspecified argument error
 0201h	bad function
 0202h	bad option
 0203h	bad structure size
 0204h	bad buffer size
 0205h	bad client ID
 0300h	unspecified error with token
 0301h	cover sheet token was invalid
 0302h	logo token was invalid
 0303h	signature token was invalid
 0304h	font token was invalid
 0305h	phone directory token was invalid
 0306h	outbound route token was invalid
 0307h	priority token was invalid
 0308h	sort token was invalid
 0309h	billing token was invalid
 0400h	unspecified handle error
 0401h	bad Phone Directory handle
 0402h	bad scheduling handle
 0403h	bad read send log handle
 0404h	bad read receive log handle
 0405h	bad graphics handle
 0500h	data passed in structure was invalid
 0501h	name field given is invalid
 0502h	phone number given is invalid
 0503h	poll code submitted is invalid
 0504h	file type constant was invalid
 0505h	BFT constant not defined or supported
 0506h	resolution not defined or supported
 0507h	page length not defined or supported
 0508h	page width not defined or supported
 0509h	date & time requested are ridiculous
 050Ah	Subject text was not an ASCIZ string
 050Bh	From text was not an ASCIZ string
 050Ch	requested envelope ID was not found
 050Dh	requested envelope ID is not valid
 050Eh	envelope requested was not found
 050Fh	destination index is out of range
 0510h	file index is out of range
 0511h	index into receive log is out of range
 0512h	file name specified was incomplete or invalid
 0513h	page selected was out of range
 0514h	bit width more than byte width
 0515h	mode for open is not defined
 0516h	person index is out of range
 0517h	person ID is out of range
 0518h	group index out of range or invalid
 0519h	group ID out of range or invalid
 051Ah	range of indices to read is invalid
 051Bh	group name given is invalid
 051Ch	field_to_use is badly specified
 051Dh	predicate invalid for field specified
 0600h	unspecified client procedure error
 0601h	device of interest is not present
 0602h	device of interest has been removed
 0603h	device of interest is not responding
 0604h	device of interest is disabled
 0605h	could not dial because device was in use
 0606h	maximum destination limit exceeded
 0607h	maximum file limit exceeded
 0608h	scheduling closed with no destination
 0609h	scheduling closed with no files or poll
 060Ah	scheduling closed with no parameters specified
 060Bh	file type specified does not match file
 060Ch	file type specified is not supported
 060Dh	file submitted is not exportable
 060Eh	file type specified is not imageable
 060Fh	error converting file
 0610h	envelope could not be cancelled
 0611h	Phone Directory is full
 0612h	record is already in the Phone Directory
 0613h	selected group in Phone Directory is full
 0614h	person is already in the group
 0615h	person is not in the group & cannot be removed
 0616h	a graphics file to be created already exists
 0617h	a graphics file to be read is empty
 0618h	GRAPH_CREATE_PAGE called before GRAPH_END_PAGE
 0619h	graph read or write attempted without goto or create
 061Ah	graph page contains no data
 061Bh	Phone Directory is already open for this client
 061Ch	schedule log is already open for this client
 061Dh	receive log is aready open for this client
 061Eh	Phone Directory function requires write mode
 0800h	denied exclusive use of the API

Format of FaxBIOS SYS_LOGIN command buffer:
Offset	Size	Description	(Table 1625)
 00h	WORD	structure size
 02h	WORD	function number
 04h	WORD	return code
 06h	WORD	client ID
 08h	WORD	API Major Version
 0Ah	WORD	API Minor Version
 0Ch	DWORD	reserved for manufacturer's use
 10h 22 BYTEs	manufacturer's ID
 26h	WORD	highest possible device number
 28h	WORD	maximum destinations per envelope
 2Ah	WORD	maximum files per envelope
 2Ch	WORD	FaxBIOS capabilities (see #1626)
 2Eh	DWORD	T.30 capabilities (see #1627)
 32h	WORD	IPC handle
 34h	DWORD	amount of memory needed to load
 38h	WORD	scope (00h for public, nonzero for private)
 3Ah  6 BYTEs	future expansion
 40h	WORD	structure size

Bitfields for FaxBIOS capabilities:
Bit(s)	Description	(Table 1626)
 0	transmit supported
 1	receive supported
 2	IOCTL supported
 3	IOCTL_DIAL supported
 4	IOCTL_ANSWER_FAX supported
 5	manual transmit supported
 6	optional phone services supported
 7	canonical phone objects
 8	seam with next supported

Bitfields for T.30 capabilities:
Bit(s)	Description	(Table 1627)
 0	low vertical resolution (minimum)
 1	high vertical resolution
 2	page width 107mm (4.21 in)
 3	page width 151mm (5.91 in)
 4	page width 215mm (8.46 in) (minimum)
 5	page width 255mm (10.04 in)
 6	page width 303mm (11.93 in)
 7	unused
 8	page length 297mm (11.69 in) (minimum)
 9	page length 364mm (14.33 in)
 10	page length 279mm (11 in)
 11	page length unlimited
 12	Group 4 resolution 300x300
 13	Group 4 resolution 400x400
 14	able to respond to poll from remote
 15	able to poll remote
 16	binary file transfer supported

Format of FaxBIOS SYS_LOGOUT command buffer:
Offset	Size	Description	(Table 1628)
 00h	WORD	structure size
 02h	WORD	function number
 04h	WORD	return code
 06h	WORD	client ID
 08h	DWORD	client tag (for client's internal use)
 0Ch  6 BYTEs	future expansion
 12h	WORD	structure size

Format of FaxBIOS SYS_GET_FAXAPP_INFO command buffer:
Offset	Size	Description	(Table 1629)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch 80 BYTEs	FaxBIOS data
 5Ch 80 BYTEs	default cover
 ACh 80 BYTEs	default logo
 FCh 80 BYTEs	default signature
14Ch 80 BYTEs	default font 10
19Ch 80 BYTEs	default font 165
1ECh 80 BYTEs	default user font
23Ch 80 BYTEs	default Pdir
28Ch 80 BYTEs	default sort
2DCh 10 BYTEs	default bill
2E6h 10 BYTEs	default route
2F0h 40 BYTEs	default cover sheet form
318h 34 BYTEs	valid dial characters
33Ah  6 BYTEs	local country code
340h  6 BYTEs	local city or area code
346h  6 BYTEs	future expansion
34Ch	WORD	structure size

Format of FaxBIOS STAT_IO_GET command buffer:
Offset	Size	Description	(Table 1630)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	device number
 0Eh	WORD	current activity
 10h	WORD	number of rings (if ringing)
 12h	WORD	number of fascimiles transmitted
 14h	WORD	number of fascimiles received
 16h	WORD	status of last transmission
 18h	WORD	envelope number of last transmission
 1Ah	WORD	index of last destination in envelope
 1Ch	WORD	status of last reception
 1Eh	WORD	current page (if session in progress)
 20h 80 BYTEs	current file
 70h 104 BYTEs	remote number
 D8h 20 BYTEs	last name
 ECh 20 BYTEs	first name
100h 32 BYTEs	company name
120h 32 BYTEs	notes
140h	WORD	current envelope ID (if sending)
142h	WORD	total pages in transmission (if sending)
144h  6 BYTEs	future expansion
14h	WORD	structure size

Format of FaxBIOS STAT_FAXBIOS_GET command buffer:
Offset	Size	Description	(Table 1631)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	status ID
 0Eh	WORD	currenty FaxBIOS function number
 10h	WORD	current Client ID being serviced
 12h	WORD	number of things to do
 14h	WORD	number of them done
 16h	WORD	number of pages to do (if any)
 18h	WORD	number of them done
 1Ah	WORD	number of files to do
 1Ch	WORD	number of them done
 1Eh 80 BYTEs	current File
 6Eh	WORD	0 if all devices are idle
 70h	WORD	number of fascimiles transmitted
 72h	WORD	number of fascimiles received
 74h	WORD	status of last transmission in system
 76h	WORD	envelope ID of last transmission
 78h	WORD	index of last destination in envelope
 7Ah	WORD	status of last reception in system
 7Ch	DWORD	time of next transmission
 80h  6 BYTEs	future expansion
 86h	WORD	structure size

Format of FaxBIOS PDIR_OPEN command buffer:
Offset	Size	Description	(Table 1632)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch 80 BYTEs	Phone Directory token
 5Ch 80 BYTEs	sort order token
 ACh	WORD	open Mode (0 = read, 1 = write)
 AEh	WORD	Phone Directory handle
 B0h	WORD	number of people
 B2h	WORD	number of groups
 B4h	WORD	bitmap of fields supported by partial read
 B6h  6 BYTEs	future expansion
 BCh	WORD	structure size

Format of FaxBIOS PDIR_CLOSE command buffer:
Offset	Size	Description	(Table 1633)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	Phone Directory handle
 0Eh  6 BYTEs	future expansion
 14h	WORD	structure size

Format of FaxBIOS PDIR_READ_PERSON command buffer:
Offset	Size	Description	(Table 1634)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	Phone Directory handle
 0Eh	WORD	retrieve by index
 10h	WORD	person ID or index
 12h	WORD	how many groups person is in
 14h	WORD	person ID
 16h 20 BYTEs	last name
 2Ah 20 BYTEs	first name
 3Eh 32 BYTEs	company
 5Eh 32 BYTEs	notes
 7Eh  6 BYTEs	FAX country code
 84h  6 BYTEs	FAX city/area code
 8Ah 14 BYTEs	FAX local number
 98h 14 BYTEs	FAX extension
 A6h 24 BYTEs	reserved
 BEh  6 BYTEs	voice country code
 C4h  6 BYTEs	voice city/area code
 CAh 14 BYTEs	voice local number
 D8h 14 BYTEs	voice extension
 E6h 24 BYTEs	reserved
 FEh 10 BYTEs	outbound routing information
108h 10 BYTEs	billing information, credit card etc
112h	DWORD	remote FAX capabilities
116h 21 BYTEs	T.30 poll code of FAX number
12Bh 15 BYTEs	reserved
13Ah  6 BYTEs	future expansion
140h	WORD	structure size

Format of FaxBIOS SCHED_OPEN, SCHED_CANCEL command buffer:
Offset	Size	Description	(Table 1635)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	scheduler handle
 0Eh  6 BYTEs	future expansion
 14h	WORD	structure size

Format of FaxBIOS SCHED_ADD_DEST command buffer:
Offset	Size	Description	(Table 1636)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	schedule handle
 0Eh	WORD	device number if manual send wanted
 10h	WORD	non-zero if poll desired
 12h	WORD	person ID
 14h 20 BYTEs	last name
 28h 20 BYTEs	first name
 3Ch 32 BYTEs	company
 5Ch 32 BYTEs	notes
 7Ch  6 BYTEs	FAX country code
 82h  6 BYTEs	FAX city/area code
 88h 14 BYTEs	FAX local number
 96h 14 BYTEs	FAX extension
 A4h 24 BYTEs	reserved
 BCh  6 BYTEs	voice country code
 C2h  6 BYTEs	voice city/area code
 C8h 14 BYTEs	voice local number
 D6h 14 BYTEs	voice extension
 E4h 24 BYTEs	reserved
 FCh 10 BYTEs	outbound routing information
106h 10 BYTEs	billing information, credit card etc
110h	DWORD	remote FAX capabilities
114h 21 BYTEs	T.30 poll code of FAX number
129h 15 BYTEs	reserved
138h  6 BYTEs	future expansion
13Eh	WORD	structure size
SeeAlso: #1637

Format of FaxBIOS SCHED_ADD_FILE command buffer:
Offset	Size	Description	(Table 1637)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	schedule handle
 0Eh	WORD	file type
		0000h unidentified
		0001h native file format
		0002h ASCII
		0003h FaxBIOS Tiff Class F
 10h 80 BYTEs	file name
 60h 80 BYTEs	font token
 B0h	WORD	conversion options bitmap
 B2h	WORD	resolution
		0000h standard 98 lines per inch, 204 dpi
		0001h fine 196 lines per inch, 204 dpi
		0002h Group4 300 dpi
		0003h Group4 400 dpi
 B4h	WORD	page length
		0000h 279 mm (11 in)
		0001h 297 mm (11.69 in)
		0002h 364 mm (14.33 in)
		0003h unlimited
 B6h	WORD	page width
		0000h 215 mm (8.46 in)
		0001h 255 mm (10.04 in)
		0002h 303 mm (11.93 in)
		0003h 151 mm (5.91 in)
		0004h 107 mm (4.21 in)
 B8h	WORD	binary file transfer specification
		0000h only as FAX
		0001h only as file (for non-faxable files)
		0002h as file when possible else FAX
 BAh	WORD	seam flag (nonzero for seam with next)
 BCh	WORD	delete flag (nonzero to delete when done)
 BEh  6 BYTEs	future expansion
 C4h	WORD	structure size
SeeAlso: #1636,#1638

Format of FaxBIOS SCHED_SET_PARAMS command buffer:
Offset	Size	Description	(Table 1638)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	scheduler handle
 0Eh	DWORD	time to send
 10h 10 BYTEs	priority token
 1Ch 80 BYTEs	logo file token
 6Ch 80 BYTEs	signature file token
 BCh 80 BYTEs	cover page token
10Ch 40 BYTEs	Subject text
134h 40 BYTEs	From text
15Ch	WORD	user ID
15Eh  6 BYTEs	future expansion
164h	WORD	structure size
SeeAlso: #1636,#1637,#1639

Format of FaxBIOS SCHED_CLOSE command buffer:
Offset	Size	Description	(Table 1639)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	scheduler handle
 0Eh	WORD	envelope ID generated
 10h  6 BYTEs	future expansion
 16h	WORD	structure size
SeeAlso: #1638

Format of FaxBIOS SLOG_OPEN, SLOG_CLOSE, RLOG_OPEN, RLOG_CLOSE command buffer:
Offset	Size	Description	(Table 1640)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	log handle
 0Eh	WORD	number of entries
 10h  6 BYTEs	future expansion
 16h	WORD	structure size

Format of FaxBIOS GRAPH_GET_FILE_TYPE command buffer:
Offset	Size	Description	(Table 1641)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch 80 BYTEs	filename
 5Ch	WORD	file type
		0000h unidentified
		0001h native file format
		0002h ASCII
		0003h FaxBIOS Tiff Class F
 5Eh	WORD	bitmap of supported capabilities
 60h  6 BYTEs	future expansion
 66h	WORD	structure size
SeeAlso: #1642,#1643

Format of FaxBIOS GRAPH_CREATE_FILE command buffer:
Offset	Size	Description	(Table 1642)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch 80 BYTEs	filename
 5Ch	WORD	graph handle
 5Eh  6 BYTEs	future expansion
 64h	WORD	structure size
SeeAlso: #1641,#1643,#1644

Format of FaxBIOS GRAPH_CLOSE_FILE, GRAPH_END_PAGE command buffer:
Offset	Size	Description	(Table 1643)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	graph handle
 0Eh  6 BYTEs	future expansion
 14h	WORD	structure size
SeeAlso: #1642,#1644

Format of FaxBIOS GRAPH_CREATE_PAGE command buffer:
Offset	Size	Description	(Table 1644)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	graph handle
 0Eh	WORD	resolution
 10h	WORD	page width
 12h  6 BYTEs	future expansion
 18h	WORD	structure size
SeeAlso: #1642,#1643,#1645

Format of FaxBIOS GRAPH_WRITE_PAGE command buffer:
Offset	Size	Description	(Table 1645)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	graph handle
 0Eh	DWORD	pointer to storage for image
 12h	WORD	band height in lines
 14h	WORD	width of page image in bytes
 16h	WORD	facsimile page width constant
 18h	WORD	width of page image in bits
 1Ah	WORD	number of bytes actually processed
 1Ch  6 BYTEs	future expansion
 22h	WORD	structure size
SeeAlso: #1644,#1646

Format of FaxBIOS GRAPH_OPEN_FILE command buffer:
Offset	Size	Description	(Table 1646)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch 80 BYTEs	filename
 5Ch	WORD	file type
 5Eh	WORD	graph handle
 60h	WORD	number of pages
 62h  6 BYTEs	future expansion
 68h	WORD	structure size
SeeAlso: #1645,#1647

Format of FaxBIOS GRAPH_GOTO_PAGE command buffer:
Offset	Size	Description	(Table 1647)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	graph handle
 0Eh	WORD	page number
 10h	WORD	vertical resolution
 12h	WORD	page width
 14h	DWORD	page length
 18h  6 BYTEs	future expansion
 1Eh	WORD	structure size
SeeAlso: #1645,#1646,#1648

Format of FaxBIOS GRAPH_READ_PAGE command buffer:
Offset	Size	Description	(Table 1648)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	graph handle
 0Eh	DWORD	pointer to storage for image
 12h	WORD	band height in lines
 14h	WORD	width of page image in bytes
 16h	WORD	facsimile page width constant
 18h	WORD	width of page image in bits
 1Ah	WORD	number of bytes actually processed
 1Ch  6 BYTEs	future expansion
 22h	WORD	structure size

Format of FaxBIOS IOCTL_ANSWER_FAX command buffer:
Offset	Size	Description	(Table 1649)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	device number
 0Eh  6 BYTEs	future expansion
 14h	WORD	structure size
SeeAlso: #1650

Format of FaxBIOS IOCTL_DIAL command buffer:
Offset	Size	Description	(Table 1650)
 00h 12 BYTEs	common data (see SYS_LOGOUT above)
 0Ch	WORD	device number
 0Eh  6 BYTEs	country code
 14h  6 BYTEs	city or area code
 1Ah 14 BYTEs	local number
 28h 14 BYTEs	extension
 36h 14 BYTEs	reserved
 4Eh  6 BYTEs	future expansion
 54h	WORD	structure size
SeeAlso: #1649
--------N-2F8100-----------------------------
INT 2F U - Nanosoft, Inc. TurboNET redirector - INSTALLATION CHECK
	AX = 8100h
Return: AL = FFh if installed
Program: TurboNET is a NetBIOS-based file redirector and server; a
	  demonstration version may be downloaded from Nanosoft's BBS
SeeAlso: AX=8000h"TurboNET"
--------N-2F8101-----------------------------
INT 2F U - Nanosoft, Inc. TurboNET redirector - ???
	AX = 8101h
Return: AL = ???
	DL = ???
--------N-2F8102-----------------------------
INT 2F U - Nanosoft, Inc. TurboNET redirector - ???
	AX = 8102h
Return: AL = ???
	DL = ???
--------N-2F8103-----------------------------
INT 2F U - Nanosoft, Inc. TurboNET redirector - GET MACHINE NAME???
	AX = 8103h
	ES:DI -> 17-byte buffer
Return: buffer filled
--------N-2F8104-----------------------------
INT 2F U - Nanosoft, Inc. TurboNET redirector - ???
	AX = 8104h
	BL = ???
	BH = ???
	CX = ???
	DX = ???
	DS:SI -> 16-byte buffer containing ???
Return: AL = 00h ???
--------N-2F8105-----------------------------
INT 2F U - Nanosoft, Inc. TurboNET redirector - ???
	AX = 8105h
	CX = ??? (don't change current value if 0000h)
	DX = ??? (don't change current value if 0000h)
Return: AL = 00h successful
--------s-2F8200-----------------------------
INT 2F - RESPLAY - SAMPLE/PLAYBACK
	AX = 8200h
	DX:DI -> start of sample space
	CX:BX = length in bytes
Return: AX = status (see #1651)
Program: RESPLAY is a freeware sound sampling/playback utility by Mark J. Cox
SeeAlso: AX=8201h"RESPLAY",AX=8210h

(Table 1651)
Values for RESPLAY status:
 1000h	successful
 2000h	not initialized (see AX=8210h)
 other	RESPLAY not installed
--------G-2F8200-----------------------------
INT 2F U - Nanosoft, Inc. CAPDOS - INSTALLATION CHECK
	AX = 8200h
Return: AL = FFh if installed
Program: CAPDOS is a TSR by Nanosoft, Inc. which allows INT 21h calls to be
	  captured and recorded for later analysis
SeeAlso: AX=8100h,AX=8201h"CAPDOS",AX=8202h"CAPDOS",AX=8203h"CAPDOS"
SeeAlso: AX=8204h"CAPDOS"
--------s-2F8201-----------------------------
INT 2F - RESPLAY - INSTALLATION CHECK
	AX = 8201h
Return: AX = 7746h if installed
SeeAlso: AX=8202h"RESPLAY",AX=8210h
--------G-2F8201-----------------------------
INT 2F - Nanosoft, Inc. CAPDOS - CLEAR QUEUE
	AX = 8201h
Note:	resets queue of captured INT 21 calls
SeeAlso: AX=8200h"CAPDOS"
--------s-2F8202-----------------------------
INT 2F - RESPLAY - UNINSTALL
	AX = 8202h
Return: AX = status
	    1000h successful
SeeAlso: AX=8201h"RESPLAY",AX=8210h"RESPLAY"
--------G-2F8202-----------------------------
INT 2F - Nanosoft, Inc. CAPDOS - START COLLECTION
	AX = 8202h
SeeAlso: AX=8200h"CAPDOS",AX=8203h"CAPDOS"
--------G-2F8203-----------------------------
INT 2F - Nanosoft, Inc. CAPDOS - STOP COLLECTION
	AX = 8203h
SeeAlso: AX=8200h"CAPDOS",AX=8202h"CAPDOS",AX=8204h"CAPDOS"
--------G-2F8204-----------------------------
INT 2F - Nanosoft, Inc. CAPDOS - GET QUEUE PARAMETERS
	AX = 8204h
Return: AH = flag: queue wrapped if nonzero
	BX = index of current start of queue
	CX = size of queue in entries
SeeAlso: AX=8200h"CAPDOS",AX=8202h"CAPDOS",AX=8205h"CAPDOS"
--------G-2F8205-----------------------------
INT 2F - Nanosoft, Inc. CAPDOS - GET QUEUE ITEM
	AX = 8205h
	BX = queue item number
Return: AX,BX,CX,DX,SI,DI,DS,ES as on entry to captured DOS call
SeeAlso: AX=8200h"CAPDOS",AX=8204h"CAPDOS"
--------s-2F8210-----------------------------
INT 2F - RESPLAY - INITIALIZE
	AX = 8210h
	BL = sound device number (see #1652)
	BH = sample rate in multiples of 250 Hz (14h to A0h)
	CL = direction
	    00h playback
	    01h sample
Return: AX = status (see #1651)
SeeAlso: AX=8200h"RESPLAY"

(Table 1652)
Values for RESPLAY sound device:
 00h	printer port LPT1
 01h	printer port LPT2
 02h	prototype board at I/O address 0300h
 03h	printer port (alternative LPT1)
 04h	internal speaker
----------2F86-------------------------------
INT 2F U - ???
	AH = 86h
	AL = function (at least 06h and 07h)
	???
Return: ???
Note:	called by Codeview for Windows
SeeAlso: AH=44h
--------U-2F8900-----------------------------
INT 2F - WHOA!.COM - INSTALLATION CHECK
	AX = 8900h
Return: AL = state
	    00h not installed
	    FFh installed
Program: WHOA!.COM is a system slow-down utility by Brad D Crandall
SeeAlso: AX=8901h,AX=8902h
--------U-2F8901-----------------------------
INT 2F - WHOA!.COM - UNINSTALL
	AX = 8901h
Return: AL = status
	    FDh successful
		 FEh error
SeeAlso: AX=8900h
--------U-2F8902-----------------------------
INT 2F - WHOA!.COM - SET DELAY COUNT
	AX = 8902h
	BX = delay count (larger values slow system down more)
Return: AL = status
	    FDh successful
	    FEh error
Program: WHOA!.COM is a system slow-down utility by Brad D Crandall
SeeAlso: AX=8900h
--------U-2F9000-----------------------------
INT 2F U - RAID - INSTALLATION CHECK
	AX = 9000h
Return: AL = FFh if installed
Program: RAID (Resident AID) is a TSR utility program by Ross Neilson Wentworth
	  that resides mostly in EMS
--------U-2F9001-----------------------------
INT 2F U - RAID - GET ???
	AX = 9001h
Return: DX:AX -> ???
SeeAlso: AX=9000h
--------U-2F9002-----------------------------
INT 2F U - RAID - GET RESIDENT SEGMENT
	AX = 9002h
Return: AX = segment of resident (conventional memory) portion
SeeAlso: AX=9000h
--------U-2F9003-----------------------------
INT 2F U - RAID - UNINSTALL
	AX = 9003h
Return: ???
SeeAlso: AX=9000h
--------U-2F9004-----------------------------
INT 2F U - RAID - GET ???
	AX = 9004h
Return: AX = first available paragraph past end of resident portion???
	CX destroyed
SeeAlso: AX=9000h
--------e-2F92-------------------------------
INT 2F - Network Courier E-Mail - API
	AH = 92h
	AL = function
	    00h installation check
	    01h uninstall
	    02h pop down MICRO.EXE notification window
	    03h ???
		 04h ???
	    05h ???
Return: ???
Program: The Network Courier is an electronic mail package by Consumers
	  Software of Vancouver, BC which was bought by Microsoft in 1991 and
	  renamed Microsoft Mail v3.0.
SeeAlso: AX=9400h,AX=9401h,AX=9402h,AH=9Ch
Index:	installation check;Network Courier E-Mail
Index:	uninstall;Network Courier E-Mail
--------R-2F9200-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - BUG
	AX = 9200h
Program: DRIVEMAP is a redirector which allows drives on computers connected
	  over the parallel or serial ports to appear as local drives
BUG:	jumps to data because jump table entry is 0000h
Note:	DRIVEMAP returns AX=FFFFh if not a valid function number in AL
--------R-2F9201-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - CHECK IF MAPPED DRIVE
	AX = 9201h
	DL = drive number (01h = A:, etc.)
Return: AL = 92h if mapped drive
	AH may be destroyed (v8.0 DRIVEMAP returns AX=0000h if not mapped)
SeeAlso: AX=9204h,AX=920Bh
--------R-2F9202-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - UNINSTALL
	AX = 9202h
	BX = caller's CS
Return: AX = status
	    0000h failed
	    nonzero successful
SeeAlso: AX=9204h
--------R-2F9203-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET VERSION
	AX = 9203h
Return: AH = major version
	AL = minor version
	CX = segment of resident code
Note:	the DRIVEMAP included with PC Tools v8.0 is version 1.00
SeeAlso: AX=9204h,INT 16/AX=FF70h
--------R-2F9204-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - INSTALLATION CHECK
	AX = 9204h
Return: AX = 9200h if installed
	   BL = ???
	   CX = segment of resident code
Program: DRIVEMAP is a redirector which allows drives on computers connected
	  over the parallel or serial ports to appear as local drives
SeeAlso: AX=9201h,AX=9202h,AX=9203h
--------R-2F9205-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - SET ???
	AX = 9205h
	BX = ??? to set
Return: CX = new value of ???
--------R-2F9206-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9206h
	???
Return: ???
--------R-2F9207-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET ???
	AX = 9207h
	???
Return: AX = ???
--------R-2F9208-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9208h
	???
Return: ???
--------R-2F9209-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9209h
	???
Return: AX = ???
	BX = ???
	CX = ???
	DX = ???
--------R-2F920A-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 920Ah
	BX = ???
Return: AX = ??? or FFFBh on error
--------R-2F920B-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - SET DRIVE MAPPING
	AX = 920Bh
	BL = drive letter (41h ['A'] = A:, etc)
	CX = ??? (0000h removes mapping)
Return: AX = ??? or FFF8h on error
SeeAlso: AX=9201h,AX=920Dh
--------R-2F920C-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 920Ch
	???
Return: AX = ??? (0002h)
	CX = ??? (0000h)
--------R-2F920D-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET DRIVE TYPE
	AX = 920Dh
	BL = drive letter (41h ['A'] = A:, etc)
Return: AX = type flags
		bit 0: ???
		bit 1: available
		bit 5: local
	BX = ???
	CX = segment of resident code (apparently an unintended side effect)
Program: DRIVEMAP is a redirector which allows drives on computers connected
	  over the parallel or serial ports to appear as local drives
SeeAlso: AX=9218h,INT 16/AX=FF70h
--------R-2F920E-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - SET LPT MAPPING
	AX = 920Eh
	BX = port number (0-2)
	CX = ??? (0000h to unmap)
Return: ???
--------R-2F920F-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET ???
	AX = 920Fh
	ES:DI -> 3-byte buffer for ???
Return: CX = 0000h
	ES:DI buffer filled
--------R-2F9210-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9210h
	???
Return: ???
--------R-2F9211-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET ???
	AX = 9211h
	ES:DI -> 8-word buffer for ???
Return: CX = 0000h
	ES:DI buffer filled
--------R-2F9212-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - CRITICAL SECTION???
	AX = 9212h
	BX = phase
	    0000h leave critical section???
	    nonzero enter critical section???
--------R-2F9213-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9213h
	BX = function number (0000h-000Bh)
	???
Return: ???
--------R-2F9214-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET ???
	AX = 9214h
	ES:DI -> 6-word buffer for ???
Return: CX = 0000h
	AX = ???
	ES:DI buffer filled
--------R-2F9215-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET ???
	AX = 9215h
	ES:DI -> 100-word buffer for ???
Return: CX = 0000h
	ES:DI buffer filled
--------R-2F9216-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9216h
	ES:DI -> ???
Return: ???
--------R-2F9217-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9217h
	DS:SI -> 25-word buffer containing ???
Return: ???
--------R-2F9218-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET LPT TYPE???
	AX = 9218h
	BX = port number???
Return: AX = ???
	BX = ??? (0000h)
	CX = ??? (0000h)
Program: DRIVEMAP is a redirector which allows drives on computers connected
	  over the parallel or serial ports to appear as local drives
--------R-2F9219-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 9219h
	???
Return: ???
--------R-2F921A-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 921Ah
	???
Return: AH = ???
	AL = ???
	BX = ???
--------R-2F921B-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 921Bh
	???
Return: AX = ???
	CX = segment of resident code (apparently an unintended side effect)
--------R-2F921C-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 921Ch
	???
Return: ???
--------R-2F921D-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - GET ???
	AX = 921Dh
Return: AX = ???
--------R-2F921E-----------------------------
INT 2F U - PC Tools v8.0 DRIVEMAP - ???
	AX = 921Eh
	???
Return: ???
Program: DRIVEMAP is a redirector which allows drives on computers connected
	  over the parallel or serial ports to appear as local drives
Note:	this function sets two variables to 24h each
SeeAlso: INT 16/AX=FF70h
--------V-2F93-------------------------------
INT 2F - InnerMission v1.7+ - INSTALLATION CHECK
	AH = 93h
	BX = CX = AX
Return: AL = state
	    FFh if installed and BX=CX=AX on entry
		BX = segment of resident code
	    01h if installed but BX or CX differ from AX (multiplex number not
		  available)
Program: InnerMission is a shareware graphical screen blanker by Kevin Stokes
SeeAlso: INT 14/AX=AA01h,INT 2F/AX=6400h
Index:	screen saver;InnerMission
--------e-2F9400-----------------------------
INT 2F - MICRO.EXE - INSTALLATION CHECK
	AX = 9400h
Return: AL = 07h or 08h if installed
Program: MICRO.EXE is a TSR of the Microsoft Mail part of Workgroup Connection
SeeAlso: AH=92h"Network Courier",AX=9401h,AX=9402h,AX=9403h,AX=9404h
SeeAlso: INT 21/AH=3Fh"WORKGRP.SYS"
--------e-2F9401-----------------------------
INT 2F - MICRO.EXE - SET ??? FLAG
	AX = 9401h
SeeAlso: AX=9400h,AX=9403h
--------e-2F9402-----------------------------
INT 2F - MICRO.EXE - ???
	AX = 9402h
	???
Return: ???
SeeAlso: AX=9400h
--------e-2F9403-----------------------------
INT 2F - MICRO.EXE - SET ??? FLAG
	AX = 9403h
SeeAlso: AX=9400h,AX=9404h
--------e-2F9404-----------------------------
INT 2F - MICRO.EXE - CLEAR ??? FLAG
	AX = 9404h
	ES:DI -> name of executable from which MICRO.EXE was started
Note:	if the specified name is identical to the name of the program file
	  from which MICRO was started, the ??? flag is cleared; otherwise,
	  it is left unchanged
SeeAlso: AX=9400h,AX=9403h
--------V-2F96C7-----------------------------
INT 2F U - STRETCH - INSTALLATION CHECK
	AX = 96C7h
Return: AX = AAAAh if installed
Program: stretch.exe is a TSR for Toshiba Laptops to avoid blank screen areas
	  in VGA text modes by increasing inter-line spacing
--------e-2F9C-------------------------------
INT 2F - Network Courier E-Mail OPERATOR.EXE - API
	AH = 9Ch
	AL = subfunction
	    01h uninstall
Return: ???
Program: The Network Courier is an electronic mail package by Consumers
	  Software of Vancouver, BC which was bought by Microsoft in 1991 and
	  renamed Microsoft Mail v3.0.
SeeAlso: AH=92h
Index:	uninstall;Network Courier E-Mail OPERATOR.EXE
--------G-2F9E00-----------------------------
INT 2F U - INTMON v2.1 - INSTALLATION CHECK
	AX = 9E00h
Return: AX = FFFFh if installed
	    BX = segment of resident code
Program: INTMON is a shareware interactive interrupt monitoring TSR for 386
	  and higher machines by Celso Minnitti, Jr.
SeeAlso: AX=9E01h,AX=9E02h,AX=9E03h,AX=9F00h
--------G-2F9E01-----------------------------
INT 2F U - INTMON v2.1 - RESET
	AX = 9E01h
Return: ???
Desc:	this function specifies that INTMON should assume that any interrupts
	  on which it is currently awaiting a return have completed (i.e.
	  interrupts which never return such as INT 20 and INT 27)
SeeAlso: AX=9E00h,AX=9E03h
--------G-2F9E02-----------------------------
INT 2F U - INTMON v2.1 - DISPLAY CPU REGISTERS???
	AX = 9E02h
Return: ???
SeeAlso: AX=9E00h
--------G-2F9E03-----------------------------
INT 2F U - INTMON v2.1 - HOOK INTERRUPT???
	AX = 9E03h
	BH = interrupt number???
Return: ???
Note:	if AL > 03h on entry, INTMON 2.1 returns immediately
SeeAlso: AX=9E00h,AX=9E01h
--------G-2F9F00-----------------------------
INT 2F U - INTCFG v2.1 - INSTALLATION CHECK
	AX = 9F00h
Return: AX = FFFFh if installed
Program: INTCFG is an optionally-resident control program for INTMON by Celso
	  Minnitti, Jr.
SeeAlso: AX=9E00h,AX=9F01h,AX=9F30h,AX=9F49h
--------G-2F9F01-----------------------------
INT 2F U - INTCFG v2.1 - ???
	AX = 9F01h
	???
Return: ???
SeeAlso: AX=9F00h
--------G-2F9F30-----------------------------
INT 2F U - INTCFG v2.1 - GET ???
	AX = 9F30h
Return: AX = ??? (0002h)
SeeAlso: AX=9F00h
--------G-2F9F49-----------------------------
INT 2F U - INTCFG v2.1 - UNINSTALL
	AX = 9F49h
Return: AX,DX,DS,ES destroyed
SeeAlso: AX=9F00h
--------E-2FA1--BX0081-----------------------
INT 2F - Ergo DOS extenders - INSTALLATION CHECK
	AH = A1h
	BX = 0081h
	AL = which
	    FEh OS/286,OS/386
	    FFh HummingBoard DOS extender
	ES:DI -> 16-byte buffer
Return: if installed, first four bytes of ES:DI buffer are "IABH"
Note:	since TKERNEL is a licensed version, it is likely that subfunctions
	  BX=0082h and BX=0084h are present and function identically to the
	  AX=FBA1h/BX=008xh calls
SeeAlso: AX=ED00h,AX=FBA1h/BX=0081h,INT 15/AX=BF02h
--------m-2FA189-----------------------------
INT 2F U - Biologic HRAMDEV.SYS - API
	AX = A189h
	BX = subfunction
	    0000h set ???
	    0001h remove ???
	    0002h get status ???
	    0003h enable ???
	    0004h disable ???
	    0005h set ??? flag
	    0006h clear ??? flag
	    0007h set ??? flag
	    0008h clear ??? flag
		 0009h set ???
	ES:DI -> function-specific arguments
		if func 0000h: 20-byte buffer containing ???
		if func 0001h: 20-byte buffer for returned ???
		if func 0002h: 16-byte buffer for returned ???
		if func 0009h: WORD containing ???
Return: BX = A189h if installed
	AH = status
	    00h successful
	    FFh failed or invalid function number
Program: HRAMDEV.SYS is a part of the shareware package HRAM by Biologic which
	  provides improved high memory access under MS-DOS 5.0
Note:	functions 00h and 01h use a stack of four entries; function 01h always
	  removes the values stored with the most recent function 00h call
	  which has not yet been matched with a function 01h call.
--------U-2FA4E0-----------------------------
INT 2F - Futurus Team - INSTALLATION CHECK
	AX = A4E0h
Return: AL = 52h ("R") if installed
	    AH = major version plus 30h ("0")
	    ES:BX -> ??? (INT A4 handler???)
Note:	older versions of Right Hand Man (from which Team evolved) store the
	  signature "RH" at offset 103h in the INT 2F handler's segment
SeeAlso: INT A4"Right Hand Man"
--------U-2FA900-----------------------------
INT 2F - METZTSR.COM - INSTALLATION CHECK
	AX = A900h
	CF set
Return: CF clear if resident
	    AX = 97FFh
	CF set if not present
Notes:	METZTSR.COM prevents METZ applications (such as the MAGIC screen
	  saver) inactivity timeout while running a DOSapp under MS Windows.
	the default multiplex number is A9h, but may be set to any value from
	  80h to FFh with a commandline switch
SeeAlso: AX=A901h,AX=A902h
--------U-2FA901-----------------------------
INT 2F - METZTSR.COM - GET TIME OF LAST KEYBOARD ACTIVITY
	AX = A901h
	CF set
Return: CF clear if successful
	    AX:DX = BIOS time at which INT 09 was last invoked
	CF set if not present
SeeAlso: INT 09,INT 1A/AH=00h
--------U-2FA902-----------------------------
INT 2F - METZTSR.COM - SET METZ Ctrl-Alt-Del FLAG
	AX = A902h
	BL = new value
	    00h Ctrl-Alt-Del not allowed
	    else Ctrl-Alt-Del allowed (startup default is 01h)
	CF set
Return: CF clear if successful
	    AX = 97FFh
	CF set if not resident
SeeAlso: AX=A903h
--------U-2FA903-----------------------------
INT 2F - METZTSR.COM - GET METZ Ctrl-Alt-Del FLAG
	AX = A903h
	CF set
Return: CF clear if successful
	    AX = 97FFh if Ctrl-Alt-Del allowed
	    AX = 0000h if Ctrl-Alt-Del not allowed
	CF set if not resident
SeeAlso: AX=A902h
--------U-2FAA00-----------------------------
INT 2F - VIDCLOCK.COM - INSTALLATION CHECK
	AX = AA00h
Return: AL = 00h not installed
	     FFh installed
Program: VIDCLOCK.COM is a memory-resident clock by Thomas G. Hanlin III
--------f-2FAB00-----------------------------
INT 2F - Btrieve Multi-User - INSTALLATION CHECK
	AX = AB00h
Return: AL = 4Dh if installed
SeeAlso: AX=AB01h,AX=AB02h,INT 7B"Btrieve"
--------f-2FAB01-----------------------------
INT 2F - Btrieve Multi-User - EXECUTE Btrieve OPERATION
	AX = AB01h
	BX = process ID
	DS:DX -> 38-byte parameter record (see #2425 at INT 7B"Btrieve")
Return: AL = status
	    00h OK
	    other retry after calling INT 7F/AX=0200h
SeeAlso: AX=AB00h,AX=AB02h,INT 7B"Btrieve",INT 7F/AX=0200h
--------f-2FAB02-----------------------------
INT 2F - Btrieve Multi-User - GET NEW PROCESS ID
	AX = AB02h
Return: AL = 00h successful
	    BX = process ID
	AL > 00h failed, retry after calling INT 7F/AX=0200h
SeeAlso: AX=AB00h,AX=AB01h,INT 7B"Btrieve",INT 7F/AX=0200h
--------V-2FAC00-----------------------------
INT 2F - DOS 4.01+ GRAPHICS.COM - INSTALLATION CHECK
	AX = AC00h
Return: AX = FFFFh
	ES:DI -> ??? (graphics data?) (not documented)
Note:	this installation check was moved here to avoid the conflict with the
	  CD-ROM extensions that occurred in DOS 4.00
SeeAlso: AX=1500h"GRAPHICS"
--------V-2FAC00DI1092-----------------------
INT 2F - QRIP/TSR - GIVE CPU TO QRIP
	AX = AC00h
	DI = 1092h
Return: nothing
Program: QRIP/TSR is a shareware TSR by Shane Hathaway implementing the Remote
	  Imaging Protocol (RIP, RIPscrip) used by several BBS systems to
	  provide a graphical user interface
Desc:	give QRIP some CPU time to update music and flashing timers
Notes:	if DI <> 1092h on entry, QRIP chains the call
	this function should be called regularly whenever the terminal program
	  is otherwise idle; the updates are automatically performed on any
	  other QRIP call
SeeAlso: AX=AC01h,AX=ACF0h
--------V-2FAC01DI1092-----------------------
INT 2F - QRIP/TSR - CHANGE INTERNAL FLAGS
	AX = AC01h
	DI = 1092h
	BX = flags to be turned on (see #1653)
	CX = flags to be turned off (see #1653)
Return: AX = 9142h if installed
	    DX = DOS-takeover flag (nonzero if QRIP able to take over DOS)
	    ---if DX nonzero---
	    BX = QRIP version number in hex (BH = major, BL = minor)
	    CX = new flags (see #1653)
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC00h/DI=1092h,AX=ACF0h

Bitfields for QRIP internal flags:
Bit(s)	Description	(Table 1653)
 0	ANSI emulation enabled (default on)
 1	RIP emulation enabled (default on)
 2	graphical commands allowed (default on)
 3	TTY text allowed (default on)
 4	disable @ variables (default off in TSR mode)
 5	wait for key on RIP "end scene" command (default off)
 6	anti-stripping (default off in TSR mode)
 7	sound enabled (default on)
 8	automatic message filter (default off in TSR mode)
 9	display-only mode (no user prompts)
 10	TTY text suppression (default off in TSR mode)
 11-15	reserved
--------V-2FAC02DI1092-----------------------
INT 2F - QRIP/TSR - TURN OFF GRAPHICS SCREEN
	AX = AC02h
	DI = 1092h
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC03h,AX=ACF0h
--------V-2FAC03DI1092-----------------------
INT 2F - QRIP/TSR - TURN ON GRAPHICS SCREEN
	AX = AC03h
	DI = 1092h
Return: nothing
Notes:	if DI <> 1092h on entry, QRIP chains the call
	this function does not restore the contents of the screen (see AX=AC15h)
SeeAlso: AX=AC02h,AX=AC14h,AX=AC15h
--------V-2FAC04DI1092-----------------------
INT 2F - QRIP/TSR - OUTPUT STRING THROUGH QRIP
	AX = AC04h
	DI = 1092h
	DX:BX -> string
	CX = length of string
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC05h,AX=AC09h,AX=AC0Ah,AX=ACF0h
--------V-2FAC05DI1092-----------------------
INT 2F - QRIP/TSR - OUTPUT NULL-TERMINATED STRING THROUGH QRIP
	AX = AC05h
	DI = 1092h
	DX:BX -> ASCIZ string
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC04h,AX=AC06h,AX=AC09h,AX=AC0Ah,AX=ACF0h
--------V-2FAC06DI1092-----------------------
INT 2F - QRIP/TSR - RECEIVE CHARACTERS FROM QRIP
	AX = AC06h
	DI = 1092h
Return: AX = character to send to BBS (0001h-00FFh) or special code (see #1654)
	BX = string-waiting flag
	    0001h entire string waiting to be sent to terminal (call AX=AC0Ch)
	CX = DX = AX
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC04h,AX=AC05h,AX=AC0Ch,AX=AC16h,AX=AC18h,AX=AC1Ah

(Table 1654)
Values for QRIP special codes:
 0000h	if none
 0100h	wait for user keypress (must call AX=AC16h/BL=00h or AX=AC18h)
 0101h	both/middle mouse button pressed
 0102h	entering block mode (up/download) (call AX=AC1Ah)
 0103h	right mouse button pressed
 0104h	BBS requested status bar on
 0105h	BBS requested status bar off
 0106h	BBS requested VT-102 terminal emulation
	(keypad keys should send VT-102 escape codes)
 0107h	BBS requested VT-102 mode off
 0108h	BBS requested doorway mode (raw IBM keyboard ASCII/scan code pairs)
 0109h	BBS requested doorway mode off
 010Ah	hotkey mode on
 010Bh	hotkey mode off
 010Ch	BBS requested Tab-key button changing on
 010Dh	BBS requested Tab-key mode off
 010Eh	XOFF (use flow control to stop incoming characters)
 010Fh	XON (use flow control to resume incoming characters)
 0110h-0119h BBS requested application (0-9) be run
	application 0 should be a standard text editor
 01FFh	send ASCII 00h to BBS 
Note:	for special codes 0104h to 010Dh, the terminal program should report
	  any mode changes it make in response by calling AX=AC16h
--------V-2FAC07DI1092-----------------------
INT 2F - QRIP/TSR - GET FONT DIRECTORY
	AX = AC07h
	DI = 1092h
Return: DX:BX -> 80-byte internal buffer containing ASCIZ font directory name
Notes:	if DI <> 1092h on entry, QRIP chains the call
	the application may change the font directory by overwriting the
	  returned buffer, ensuring that it does not exceed 80 bytes incl. NUL
	if changed, the new path will not become effective until the graphics
	  screen is reinitialized
SeeAlso: AX=AC08h,AX=ACF0h
--------V-2FAC08DI1092-----------------------
INT 2F - QRIP/TSR - GET ICON DIRECTORY
	AX = AC08h
	DI = 1092h
Return: DX:BX -> 80-byte internal buffer containing ASCIZ icon directory name
Notes:	if DI <> 1092h on entry, QRIP chains the call
	the application may change the icon directory by overwriting the
	  returned buffer, ensuring that it does not exceed 80 bytes incl. NUL,
	  and includes a trailing backslash
	if changed, the new path becomes effective immediately
SeeAlso: AX=AC07h,AX=ACF0h
--------V-2FAC09DI1092-----------------------
INT 2F - QRIP/TSR - OUTPUT STRING THROUGH QRIP
	AX = AC09h
	DI = 1092h
	DX:BX -> string
	CX = length of string
Return: AX = character to send to BBS (0001h-00FFh) or special code (see #1654)
	BX = string-waiting flag
	    0001h entire string waiting to be sent to terminal (call AX=AC0Ch)
	CX = DX = AX
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC04h,AX=AC06h,AX=AC0Ah,AX=ACF0h
--------V-2FAC0ADI1092-----------------------
INT 2F - QRIP/TSR - OUTPUT NULL-TERMINATED STRING THROUGH QRIP
	AX = AC0Ah
	DI = 1092h
	DX:BX -> ASCIZ string
Return: AX = character to send to BBS (0001h-00FFh) or special code (see #1654)
	BX = string-waiting flag
	    0001h entire string waiting to be sent to terminal (call AX=AC0Ch)
	CX = DX = AX
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC05h,AX=AC06h,AX=AC09h,AX=ACF0h
--------V-2FAC0BDI1092-----------------------
INT 2F - QRIP/TSR - EXECUTE RIP "END SCENE" COMMAND
	AX = AC0Bh
	DI = 1092h
Return: nothing
Notes:	if DI <> 1092h on entry, QRIP chains the call
	enables all mouse buttons and cancels the RIP timeout
SeeAlso: AX=AC01h,AX=AC04h,AX=ACF0h
--------V-2FAC0CDI1092-----------------------
INT 2F - QRIP/TSR - GET STRING TO BE SENT TO BBS
	AX = AC0Ch
	DI = 1092h
Return: AX = status
	    0000h nothing to be sent
	    0001h a string is waiting to be sent
		DX:BX -> string to be sent (may contain NULs)
		CX = length of string
	    0002h special code waiting (call AX=AC06h)
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC06h,AX=ACF0h
--------V-2FAC0DDI1092-----------------------
INT 2F - QRIP/TSR - SET PROTECTED SCREEN AREA
	AX = AC0Dh
	DI = 1092h
	CL = number of text lines at bottom of screen to protect (00h = off)
	BL = attribute with which to fill area (bit 7 = high-int. background)
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC0Eh,AX=AC0Fh,AX=AC10h,AX=ACF0h
--------V-2FAC0EDI1092-----------------------
INT 2F - QRIP/TSR - WRITE ASCIZ STRING IN PROTECTED AREA
	AX = AC0Eh
	DI = 1092h
	DX:BX -> ASCIZ string to be written
	CL = column at which to begin writing
	CH = row number within protected area (00h = first line)
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC0Dh,AX=AC0Fh,AX=AC10h,AX=ACF0h
--------V-2FAC0FDI1092-----------------------
INT 2F - QRIP/TSR - SCROLL PROTECTED AREA
	AX = AC0Fh
	DI = 1092h
	BH,BL = row,column of upper-left corner in protected area
	DH,DL = row,column of lower-right corner
	CL = number of lines to scroll up
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC0Dh,AX=AC0Eh,AX=AC10h,AX=ACF0h
--------V-2FAC10DI1092-----------------------
INT 2F - QRIP/TSR - SET OUTPUT COLOR FOR PROTECTED AREA
	AX = AC10h
	DI = 1092h
	BL = new attribute (bit 7 set for high-intensity background)
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC0Dh,AX=AC0Eh,AX=AC0Fh,AX=AC11h,AX=ACF0h
--------V-2FAC11DI1092-----------------------
INT 2F - QRIP/TSR - CONVERT PROTECTED AREA TO ENTIRE SCREEN
	AX = AC11h
	DI = 1092h
	BX = mode (0000h = normal protect, 0001h = allow full-screen access)
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC0Dh,AX=AC0Eh,AX=AC0Fh,AX=AC10h,AX=AC12h,AX=ACF0h
--------V-2FAC12DI1092-----------------------
INT 2F - QRIP/TSR - BEGIN POPUP-WINDOW MODE
	AX = AC12h
	DI = 1092h
Return: nothing
Notes:	if DI <> 1092h on entry, QRIP chains the call
	while popup-mode is in effect, the terminal program can write to the
	  screen (and easily restore it) by outputting a RIP file with AX=AC04h
	  or AX=AC05h
	QRIP will automatically drop out of popup-window mode if the terminal
	  program invokes RIP pick-lists
	any changes to the protected area will be restored when popup-window
	  mode is cancelled
SeeAlso: AX=AC04h,AX=AC11h,AX=AC13h,AX=ACF0h
--------V-2FAC13DI1092-----------------------
INT 2F - QRIP/TSR - END POPUP-WINDOW MODE
	AX = AC13h
	DI = 1092h
Return: nothing
Notes:	if DI <> 1092h on entry, QRIP chains the call
	restores screen
SeeAlso: AX=AC12h,AX=ACF0h
--------V-2FAC14DI1092-----------------------
INT 2F - QRIP/TSR - SAVE GRAPHICS SCREEN AND SWITCH TO TEXT MODE
	AX = AC14h
	DI = 1092h
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC03h,AX=AC15h
--------V-2FAC15DI1092-----------------------
INT 2F - QRIP/TSR - RESTORE GRAPHICS SCREEN
	AX = AC15h
	DI = 1092h
Return: nothing
Desc:	restores the graphics screen saved by the last call to AX=AC14h
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC03h,AX=AC14h
--------V-2FAC16DI1092-----------------------
INT 2F - QRIP/TSR - REPORT MODE CHANGE TO QRIP
	AX = AC16h
	DI = 1092h
	BL = new mode
	    00h terminate key wait
	    01h status bar on
	    02h status bar off
	    03h VT-102 mode on
	    04h VT-102 mode off
	    05h doorway mode on
	    06h doorway mode off
	    07h hotkeys mode on
		 08h hotkeys mode off
	    09h tabkey mode on
	    0Ah tabkey mode off
Return: nothing
Notes:	if DI <> 1092h on entry, QRIP chains the call
	all modes default to OFF when QRIP is first installed
--------V-2FAC17DI1092-----------------------
INT 2F - QRIP/TSR - CALL (EXECUTE) A RIP FILE
	AX = AC17h
	DI = 1092h
	DX:BX -> ASCIZ filename for RIP file to be executed
Return: nothing
Notes:	if DI <> 1092h on entry, QRIP chains the call
	the specified file may be in the current icon directory, the QRIP
	  startup directory, or the current directory; any pathnames specified
	  with the filename are ignored
--------V-2FAC18DI1092-----------------------
INT 2F - QRIP/TSR - SEND USER KEY TO QRIP
	AX = AC18h
	DI = 1092h
	BX = key (00xxh is normal ASCII, xx00h is an extended key)
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC06h,AX=ACF0h
--------V-2FAC19DI1092-----------------------
INT 2F - QRIP/TSR - HANGUP
	AX = AC19h
	DI = 1092h
Return: nothing
Desc:	inform QRIP that carrier has been lost
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=ACF0h
--------V-2FAC1ADI1092-----------------------
INT 2F - QRIP/TSR - GET RIP_ENTER_BLOCK_MODE INFORMATION
	AX = AC1Ah
	DI = 1092h
Return: AH = requested protocol (see #1655)
	AL = file type (see #1656)
	DX:BX -> ASCIZ filename or 0000h:0000h
	CX = length of filename
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=ACF0h

(Table 1655)
Values for QRIP protocol identifier:
 00h	Xmodem (checksum)
 01h	Xmodem-CRC
 02h	Xmodem-1K
 03h	Xmodem-1K-G
 04h	Kermit
 05h	Ymodem
 06h	Ymodem-G
 07h	Zmodem with crash recovery
 08h-0Fh same as 00h-07h, but for uploading instead of downloading
SeeAlso: #1656

(Table 1656)
Values for QRIP file type:
 00h	RIP file sequence to be displayed
 01h	RIP file sequence to be stored in icon directory
 02h	ICN file sequence to be stored in icon directory
 03h	HLP file sequence to be stored, then auto-loaded if needed
 04h	COMPOSITE DYNAMIC file sequence (batch protocols only)
 05h	ACTIVE DYNAMIC file sequence (batch protocols only)
Note:	for file types 04h and 05h, any .RIP or .ICN files are stored in
	  the icon directory; in mode 05h, any .RIP files are also played
	  back as they are received
SeeAlso: #1655
--------V-2FAC1BDI1092-----------------------
INT 2F - QRIP/TSR - SET SYSTEM FONT SIZE
	AX = AC1Bh
	DI = 1092h
	BX = font size (see #1657)
Return: nothing
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC04h,AX=ACF0h

(Table 1657)
Values for QRIP font size specifier:
 00h	8x8 font, 80x43 screen
 01h	7x8 font, 90x43 screen
 02h	8x14 font, 80x25 screen
 03h	7x14 font, 90x25 screen
 04h	16x14 font, 40x25 screen
--------V-2FACF0DI1092-----------------------
INT 2F - QRIP/TSR - INSTALLATION CHECK
	AX = ACF0h
	DI = 1092h
Return: AX = 9142h if installed
	    DX = DOS-takeover flag (nonzero if QRIP able to take over DOS)
	    ---if DX nonzero---
	    BX = QRIP version number in hex (BH = major, BL = minor)
		 CX = current flags (see AX=AC01h)
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=AC00h/DI=1092h,AX=AC01h,AX=AC04h,AX=AC06h,AX=AC1Ah,AX=ACFFh
--------V-2FACFFDI1092-----------------------
INT 2F - QRIP/TSR - UNINSTALL
	AX = ACFFh
	DI = 1092h
Return: AX = status
	    0000h unable to remove (interrupt vector hooked by another prog)
	    0001h successful
	    0002h unable to take over DOS at this time (retry uninstall)
Note:	if DI <> 1092h on entry, QRIP chains the call
SeeAlso: AX=ACF0h
--------V-2FAD00-----------------------------
INT 2F U - DOS 3.3+ DISPLAY.SYS internal - INSTALLATION CHECK
	AX = AD00h
Return: AL = FFh if installed
	    BX = ??? (0100h for MS-DOS 3.3+)
Note:	DOS 5+ DISPLAY.SYS chains to previous handler if AL is not one of the
	  subfunctions listed here
--------O-2FAD00-----------------------------
INT 2F U - DR-DOS 3.41,5.0 KEYB - INSTALLATION CHECK
	AX = AD00h
Return: AX = FFFFh if installed
SeeAlso: AX=AD80h
--------V-2FAD01-----------------------------
INT 2F U - DOS 3.3+ DISPLAY.SYS internal - SET ACTIVE CODE PAGE
	AX = AD01h
	BX = new code page
Return: CF clear if successful
	    AX = 0001h
	CF set on error (unsupported code page)
	    AX = 0000h
SeeAlso: AX=AD02h
--------O-2FAD01-----------------------------
INT 2F U - DR-DOS 3.41,5.0 KEYB - GET CONFIGURATION
	AX = AD01h
Return: BX = current code page
	CX = current keyboard layout (0100h = US, 0102h = foreign)
	ES = resident code segment
SeeAlso: AX=AD83h
--------V-2FAD02-----------------------------
INT 2F U - DOS 3.3+ DISPLAY.SYS internal - GET ACTIVE CODE PAGE
	AX = AD02h
Return: CF set if code page never set
	    AX = 0001h
		 BX = FFFFh (assume first hardware code page)
	CF clear if successful
	    BX = current code page
SeeAlso: AX=AD01h,AX=AD03h
--------V-2FAD03-----------------------------
INT 2F U - DOS 3.3+ DISPLAY.SYS internal - GET CODE PAGE INFORMATION
	AX = AD03h
	ES:DI -> buffer for code page information (see #1658)
	CX = size of buffer in bytes
Return: CF set if buffer too small
	CF clear if successful
	    ES:DI buffer filled
SeeAlso: AX=AD01h,AX=AD02h

Format of DOS 5.0-6.0 DISPLAY.SYS code page information:
Offset	Size	Description	(Table 1658)
 00h	WORD	number of software code pages
 02h	WORD	??? (0003h)
 04h	WORD	number of hardware code pages
 06h  N WORDs	hardware code page numbers
      N WORDs	software (prepared) code pages (FFFFh if not yet prepared)
--------V-2FAD04-----------------------------
INT 2F U - DOS 4.x only DISPLAY.SYS internal - ???
	AX = AD04h
	???
Return: ???
--------V-2FAD10-----------------------------
INT 2F U - DOS 4.x DISPLAY.SYS internal - INSTALLATION CHECK???
	AX = AD10h
	???
Return: AX = FFFFh
	BX = ??? (0100h in PC-DOS 4.01)
--------V-2FAD10-----------------------------
INT 2F U - DOS 5+ DISPLAY.SYS internal - ???
	AX = AD10h
	???
Return: CF clear if successful
	CF set on error
Note:	this function is a NOP if the active code page has never been set
	  (AX=AD02h returns BX=FFFFh); its purpose otherwise is not known
--------V-2FAD40-----------------------------
INT 2F - DOS 4+ - ???
	AX = AD40h
	DX = ???
	???
Return: ???
Note:	called by PC-DOS 4.01 PRINT.COM
--------K-2FAD80-----------------------------
INT 2F u - DOS 3.3+ KEYB.COM internal - INSTALLATION CHECK
	AX = AD80h
Return: AL = FFh if installed
	    BX = version number (BH = major, BL = minor)
	    ES:DI -> internal data (see #1659)
Notes:	MS-DOS 3.30, PC-DOS 4.01, and MS-DOS 5.00 all report version 1.00.
	this function was undocumented prior to the release of DOS 5.0

Format of KEYB internal data:
Offset	Size	Description	(Table 1659)
 00h	DWORD	original INT 09
 04h	DWORD	original INT 2F
 08h  6 BYTEs	???
 0Eh	WORD	flags
 10h	BYTE	???
 11h	BYTE	???
 12h  4 BYTEs	???
 16h  2 BYTEs	country ID letters
 18h	WORD	current code page
---DOS 3.3---
 1Ah	WORD	pointer to first item in list of code page tables???
 1Ch	WORD	pointer to ??? item in list of code page tables
 1Eh  2 BYTEs	???
 20h	WORD	pointer to key translation data (see #1661)
 22h	WORD	pointer to last item in code page table list (see #1660)
 24h  9 BYTEs	???
---DOS 4.01---
 1Ah  2 BYTEs	???
 1Ch	WORD	pointer to first item in list of code page tables???
 1Eh	WORD	pointer to ??? item in list of code page tables
 20h  2 BYTEs	???
 22h	WORD	pointer to key translation data (see #1661)
 24h	WORD	pointer to last item in code page table list (see #1660)
 26h  9 BYTEs	???

Format of code page table list entries:
Offset	Size	Description	(Table 1660)
 00h	WORD	pointer to next item, FFFFh = last
 02h	WORD	code page
 04h  2 BYTEs	???

Format of KEYB translation data:
Offset	Size	Description	(Table 1661)
 00h	WORD	size of data in bytes, including this word
 02h N-2 BYTEs	???
--------K-2FAD81-----------------------------
INT 2F - DOS 3.3+ KEYB.COM - SET KEYBOARD CODE PAGE
	AX = AD81h
	BX = code page (see #0962 at INT 21/AX=6601h)
Return: CF set on error
	    AX = 0001h (code page not available)
	CF clear if successful
Notes:	called by DISPLAY.SYS
	this function was undocumented prior to the release of DOS 5.0
SeeAlso: AX=AD82h
--------K-2FAD82-----------------------------
INT 2F - DOS 3.3+ KEYB.COM - SET KEYBOARD MAPPING
	AX = AD82h
	BL = new state
	    00h US keyboard (Control-Alt-F1)
	    FFh foreign keyboard (Control-Alt-F2)
Return: CF set on error (BL not 00h or FFh)
	CF clear if successful
Note:	this function was undocumented prior to the release of DOS 5.0
SeeAlso: AX=AD81h,AX=AD83h
--------K-2FAD83-----------------------------
INT 2F - DOS 5+ KEYB.COM - GET KEYBOARD MAPPING
	AX = AD83h
Return: BL = current state
	    00h US keyboard
	    FFh foreign keyboard
SeeAlso: AX=AD82h
--------l-2FAE00-----------------------------
INT 2F U - DOS 3.3+ internal - INSTALLABLE COMMAND - INSTALLATION CHECK
	AX = AE00h
	DX = magic value FFFFh
	CH = FFh
	CL = length of command line tail (4DOS v4.0)
	DS:BX -> command line buffer (see #1662)
	DS:SI -> command name buffer (see #1663)
	DI = 0000h (4DOS v4.0)
Return: AL = FFh if this command is a TSR extension to COMMAND.COM
	AL = 00h if the command should be executed as usual
Notes:	This call provides a mechanism for TSRs to install permanent
	  extensions to the command repertoire of COMMAND.COM.	It appears
	  that COMMAND.COM makes this call before executing the current
	  command line, and does not execute it itself if the return is FFh.
	APPEND hooks this call, to allow subsequent APPEND commands to
	  execute without re-running APPEND
SeeAlso: AX=AE01h

Format of COMMAND.COM command line buffer:
Offset	Size	Description	(Table 1662)
 00h	BYTE	max length of command line, as in INT 21/AH=0Ah
 01h	BYTE	count of bytes to follow, excluding terminating 0Dh
      N BYTEs	command line text, terminated by 0Dh

Format of command name buffer:
Offset	Size	Description	(Table 1663)
 00h	BYTE	length of command name
 01h  N BYTEs	uppercased command name (blank-padded to 11 chars by 4DOS v4)
--------l-2FAE01-----------------------------
INT 2F U - DOS 3.3+ internal - INSTALLABLE COMMAND - EXECUTE
	AX = AE01h
	DX = magic value FFFFh
	CH = 00h
	CL = length of command name (4DOS v4.0)
	DS:BX -> command line buffer (see #1662)
	DS:SI -> command name buffer (see #1663)
Return: DS:SI buffer updated
	  if length byte is nonzero, the following bytes contain the uppercase
	  internal command to execute and the command line buffer contains the
	  command's parameters (the first DS:[SI] bytes are ignored)
Notes:	this call requests execution of the command which a previous call to
	  AX=AE00h indicated was resident
	APPEND hooks this call
BUG:	Novell DOS 7.0's COMMAND.COM will attempt to run a disk program with
	  the indicated name even if the returned length byte is zero, because
	  the register used to flag this case is clobbered without first
	  checking it.	The workaround is to set the command name buffer to
	  "REM" followed by enough blanks to pad out the original command's
	  length, which will also work with MS-DOS 6.
	  (from padgett@tccslr.dnet.mmc.com)
SeeAlso: AX=AE00h
----------2FAF00-----------------------------
INT 2F U - ???
	AX = AF00h
	???
Return: AX = 0000h if interface supported
SeeAlso: AX=AF02h,AX=AF03h,AX=AF04h,AX=AF13h,AX=AF30h
----------2FAF02-----------------------------
INT 2F U - ???
	AX = AF02h
	???
Return: ES = ???
SeeAlso: AX=AF00h
----------2FAF03-----------------------------
INT 2F U - ???
	AX = AF03h
	???
Return: DX = ???
SeeAlso: AX=AF00h
----------2FAF04-----------------------------
INT 2F U - ???
	AX = AF04h
	???
Return: ???
SeeAlso: AX=AF00h
----------2FAF05-----------------------------
INT 2F U - ???
	AX = AF05h
	???
Return: ???
SeeAlso: AX=AF00h
----------2FAF12-----------------------------
INT 2F U - ???
	AX = AF12h
	???
Return: ES = ???
SeeAlso: AX=AF00h
----------2FAF13-----------------------------
INT 2F U - ???
	AX = AF13h
	???
Return: ???
SeeAlso: AX=AF00h
----------2FAF30-----------------------------
INT 2F U - ???
	AX = AF30h
	???
Return: ???
SeeAlso: AX=AF00h
----------2FAFDE-----------------------------
INT 2F - Disk-Emu - INSTALLATION CHECK / VERSION CHECK
	AX = AFDEh
	ES:DI -> 14-byte buffer for data (see #1664)
Return: AX = CFDEh (Carlos Fernandez Disk-Emu) if installed
	    BX = version (BH = major, BL = minor)

Format of Disk-Emu information data:
Offset	Size	Description	(Table 1664)
 00h	BYTE	number of tracks
 01h	BYTE	sectors per track
 02h	WORD	bytes per sector
 04h	BYTE	number of heads
 05h	BYTE	flag: 00h inactive, 01h active
 06h	BYTE	write protection (00h none, 01h full, 02h pseudo)
 07h	BYTE	saved (00h some unsaved data, 01h all data saved)
 08h	BYTE	disk in memory (00h no, 01h yes)
 09h	WORD	EMS handle
 0Bh	WORD	XMS handle
 0Dh	BYTE	memory type used for disk (00h XMS, 01h EMS)
--------V-2FB000-----------------------------
INT 2F - DOS 3.3+ GRAFTABL.COM - INSTALLATION CHECK
	AX = B000h
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
Notes:	called by DISPLAY.SYS
	documented for DOS 5.0, but undocumented in prior versions
SeeAlso: AX=2300h,AX=2E00h,AX=B001h
--------V-2FB001-----------------------------
INT 2F - DOS 3.3+ GRAFTABL.COM - GET GRAPHICS FONT TABLE
	AX = B001h
	DS:BX -> DWORD buffer for address of 8x8 font table
Return: buffer filled
	AL = FFh
Note:	PC-DOS 3.30/4.01 and MS-DOS 6.0 set the font table offset to 0130h,
	  MS-DOS 3.30 sets it to 0030h
SeeAlso: AH=2Eh"GRAFTABL",AX=B000h
--------I-2FB400-----------------------------
INT 2F - IBM PC3270 EMULATION PROG v3 - INSTALLATION CHECK
	AX = B400h
Return: AL = FFh if installed
--------I-2FB401-----------------------------
INT 2F - IBM PC3270 EMULATION PROG v3 - GET HOST BUFFER ADDRESS
	AX = B401h
Return: ES -> host screen buffer (PC ASCII format)
	ES unchanged if communications not started
--------I-2FB402-----------------------------
INT 2F - IBM PC3270 EMULATION PROG v3 - ???
	AX = B402h
	BX = ???
Return: ???
--------I-2FB403-----------------------------
INT 2F - IBM PC3270 EMULATION PROG v3 - ???
	AX = B403h
	???
Return: ???
--------I-2FB404-----------------------------
INT 2F - IBM PC3270 EMULATION PROG v3 - ???
	AX = B404h
	???
Return: ???
--------I-2FB405-----------------------------
INT 2F - IBM PC3270 EMULATION PROG v3 - ???
	AX = B405h
	???
Return: ???
----------2FB700-----------------------------
INT 2F - APPEND - INSTALLATION CHECK
	AX = B700h
Return: AL = status
	    00h not installed
	    FFh installed
Note:	MS-DOS 3.30 APPEND refuses to install itself when run inside TopView or
	  a TopView-compatible environment
SeeAlso: AX=B702h
----------2FB701-----------------------------
INT 2F U - APPEND v3.21 only - GET APPEND PATH
	AX = B701h
Return: ES:DI -> active APPEND path
Notes:	the only version of APPEND known to support this call is the APPEND
	  shipped with Microtek MS-DOS 3.21; MS-DOS 3.30-6.00 APPEND displays
	  "Incorrect APPEND Version" and aborts the caller
	use AX=B704h first, and only call this function if that one is not
	  supported
SeeAlso: AX=B700h,AX=B704h
----------2FB702-----------------------------
INT 2F - APPEND - VERSION CHECK
	AX = B702h
Return: AX = FFFFh if not DOS 4.0 APPEND (also if DOS 5.0 APPEND)
	AL = major version number
	AH = minor version number, otherwise
SeeAlso: AX=B700h,AX=B710h
----------2FB703-----------------------------
INT 2F U - DOS 3.3, DOS 5.0 APPEND - HOOK INT 21
	AX = B703h
	ES:DI -> INT 21 handler APPEND should chain to
Return: ES:DI -> APPEND's INT 21 handler
Note:	each invocation of this function toggles a flag which APPEND uses to
	  determine whether to chain to the user handler or the original
	  INT 21
SeeAlso: AX=B700h,AX=B706h
----------2FB704-----------------------------
INT 2F - DOS 3.3+ APPEND - GET APPEND PATH
	AX = B704h
Return: ES:DI -> active APPEND path (128 bytes max)
Note:	some versions of append do not support this call, and return ES
	  unchanged; in this case, you should call AX=B701h to get the APPEND
	  path
SeeAlso: AX=B701h
----------2FB706-----------------------------
INT 2F - DOS 4+ APPEND - GET APPEND FUNCTION STATE
	AX = B706h
Return: BX = APPEND state (see #1665)
SeeAlso: AX=B700h,AX=B707h

Bitfields for APPEND state:
Bit(s)	Description	(Table 1665)
 0	set if APPEND enabled
 1-11	reserved
 12	(DOS 5.0) set if APPEND applies directory search even if a drive has
	  been specified
 13	set if /PATH flag active
 14	set if /E flag active (environment var APPEND exists)
 15	set if /X flag active
----------2FB707-----------------------------
INT 2F - DOS 4+ APPEND - SET APPEND FUNCTION STATE
	AX = B707h
	BX = APPEND state bits (see #1665)
SeeAlso: AX=B700h,AX=B706h
----------2FB710-----------------------------
INT 2F U - DOS 3.3+ APPEND - GET VERSION INFO
	AX = B710h
Return: AX = current APPEND state (see #1665)
	BX = ??? (0000h in MS-DOS 3.30 and 5.00)
	CX = ??? (0000h in MS-DOS 3.30 and 5.00)
	DL = major version
	DH = minor version
SeeAlso: AX=B700h,AX=B702h
----------2FB711-----------------------------
INT 2F - DOS 4+ APPEND - SET RETURN FOUND NAME STATE
	AX = B711h
Note:	if the next INT 21h call (and ONLY the next) is function 3Dh, 43h, or
	  6Ch (also 4B03h and 4Eh if /X active), the fully qualified filename
	  is written over top of the filename passed to the INT 21h call.  The
	  application must provide a sufficiently large buffer.	 This state is
	  reset after the next INT 21h call processed by APPEND.
	APPEND uses the byte at offset 3Dh in the PSP
	  (see #0603 at INT 21/AH=26h) to store the flag telling it to
	  overwrite the filename
BUG:	DOS 4.0 APPEND reportedly overwrites DS:DX instead of DS:SI for
	  INT 21/AH=6Ch
SeeAlso: INT 21/AH=26h,INT 21/AH=4Eh
--------N-2FB800-----------------------------
INT 2F - NETWORK - INSTALLATION CHECK
	AX = B800h
Return: AL = status
	    00h	    not installed
	    nonzero installed
	      BX = installed component flags (test in this order!)
		   bit 6   server
		   bit 2   messenger
		   bit 7   receiver
		   bit 3   redirector
		   bit 1   LANPUP (LANtastic 4.0)
Notes:	this function is supported by PC LAN Program, LAN Manager, LANtastic,
	  NetWare Lite, SilverNET, 10NET, etc.
	LANtastic and NetWare Lite use only BL for the return value, preserving
	  BH; LAN Manager and DOS LAN Requester return BH=00h.	This permits
	  differentiation between those two groups by setting BH to a nonzero
	  value before the call and checking its value on return.
SeeAlso: AX=4E53h,AX=B809h
--------N-2FB800CXF041-----------------------
INT 2F - 10NET - INSTALLATION CHECK
	AX = B800h
	CX = F041h
Return: AL = status
	    00h	    not installed
	    nonzero installed
		BX = installed component flags (test in this order!)
		   bit 6   server
		   bit 2   messenger
		   bit 7   receiver
		   bit 3   redirector
		   bit 1   LANPUP (LANtastic 4.0)
		CX = 10Net data segment
		CX:DX -> 10Net Configuration Table
			  (see #0896 at INT 21/AX=5E01h"10NET")
Note:	if CX <> F041h on entry, neither CX nor DX will be changed, and this
	  call becomes identical to the standard installation check above
SeeAlso: AX=B800h"network",INT 21/AX=5E01h"10NET"
--------N-2FB803-----------------------------
INT 2F - NETWORK - GET NETWORK EVENT POST HANDLER
	AX = B803h
Return: ES:BX -> current event post handler (see AX=B804h)
Note:	this function is supported by PC LAN Program, 10NET v5.0
SeeAlso: AC=B800h,AX=B804h,AX=B903h
--------N-2FB804-----------------------------
INT 2F - NETWORK - SET NETWORK EVENT POST HANDLER
	AX = B804h
	CX = (10NET) 0370h if 10Windows is hooking post handler
	ES:BX -> new event post handler (see #1666)
Notes:	used in conjunction with AX=B803h to hook into the network event post
	  routine
	this function is supported by PC LAN Program, 10NET v5.0
	The specified handler is called on any network event.  Two events are
	  defined: message received and critical network error.
SeeAlso: AX=B800h,AX=B803h,AX=B904h

(Table 1666)
Values network post routine is called with:
	AX = 0000h single block message
	    DS:SI -> ASCIZ originator name
	    DS:DI -> ASCIZ destination name
	    ES:BX -> text header (see #1667)
	AX = 0001h start multiple message block
		 CX = block group ID
	    DS:SI -> ASCIZ originator name
	    DS:DI -> ASCIZ destination name
	AX = 0002h multiple block text
	    CX = block group ID
	    ES:BX -> text header (see #1667)
	AX = 0003h end multiple block message
	    CX = block group ID
	AX = 0004h message aborted due to error
	    CX = block group ID
	AX = 0101h server received badly formatted network request
	    Return: AX = FFFFh (PC LAN will process error)
	AX = 0102h unexpected network error
	    ES:BX -> NCB (see #1894 at INT 5C)
	AX = 0103h server received INT 24 error
	    other registers as for INT 24, except AH is in BH
	    Return: as below, but only 0000h and FFFFh allowed
Return: AX = response code
	    0000h user post routine processed message
	    0001h PC LAN will process message, but message window not displayed
	    FFFFh PC LAN will process message

Format of text header:
Offset	Size	Description	(Table 1667)
 00h	WORD	length of text (maximum 512 bytes)
 02h  N BYTEs	text of message
Note:	all CRLF sequences in message text are replaced by 14h; all other
	  values below 20h (space) are reserved
--------N-2FB807-----------------------------
INT 2F - NETWORK - GET NetBIOS NAME NUMBER OF MACHINE NAME
	AX = B807h
Return: CH = NetBIOS name number of the machine name
SeeAlso: INT 21/AX=5E00h
--------N-2FB808-----------------------------
INT 2F U - NETWORK - RELINK KEYBOARD HANDLER
	AX = B808h
	ES:BX -> INT 09 handler network should call after it finishes INT 09
Notes:	this call replaces the address to which the network software chains on
	  an INT 09 without preserving the original value.  This allows a prior
	  handler to unlink, but does not allow a new handler to be added
	  such that the network gets the INT 09 first unless the new handler
	  completely takes over INT 09 and never chains.
	this function is called by the DOS 3.2 KEYBxx.COM
SeeAlso: AX=B908h
--------N-2FB809-----------------------------
INT 2F - NETWORK - LANtastic, NetWare Lite - VERSION CHECK
	AX = B809h
Return: AH = major version
	AL = minor version (decimal)
Notes:	this function is supported in this form by LANtastic, NetWare Lite,
	  SilverNET, ...
	NetWare Lite returns its own version number rather than a PC LAN
	  compatibility version
SeeAlso: AX=4E53h,AX=B800h,AX=B809h"PC LAN Program"
--------N-2FB809-----------------------------
INT 2F - NETWORK - PC LAN Program - VERSION CHECK
	AX = B809h
Return: AH = minor version (decimal)
	AL = major version
Notes:	this function is supported in this form by PC LAN Program, LAN Manager,
	  the DOS LAN Requester, and 10NET v5.0
	10NET returns version 1.10 (AX=0A01h) for compatibility
SeeAlso: AX=4E53h,AX=B800h,AX=B809h"LANtastic"
--------N-2FB80A-----------------------------
INT 2F u - PC Network 1.00 - ???
	AX = B80Ah
	???
Return: ???
Program: PC Network is an early networking package which was renamed the
	  IBM PC Local Area Network Program (PC LAN Program) as of v1.10
Note:	called by RECEIVER (equivalent to NetWare Lite SERVER)
--------N-2FB80F-----------------------------
INT 2F - DOS LAN Requester - GET START PARAMETERS
	AX = B80Fh
	CX = size of return data buffer
	ES:DI -> return data buffer (see #1668)
Return: AX = status
	     00h     network started
	     nonzero network not started
	CX = number of bytes returned in buffer
	ES:DI buffer filled
SeeAlso: AX=B809h"PC LAN Program"

Format of DOS LAN Requester return data buffer:
Offset	Size	Description	(Table 1668)
 00h	BYTE	major version
 01h	BYTE	minor version
 02h	WORD	configuration flags given when network was started (see #1669)
 04h 15 BYTEs	NET START machine name (space padded)
 13h	BYTE	00h
 14h 9	BYTEs	NET START domain name (NULL padded)
 1Dh	BYTE	00h
 1Eh 32 BYTEs	/WRK heuristics string (space padded, not terminated)
 3Eh	WORD	/SRV value
 40h	WORD	/ASG value
 42h	WORD	/NBC value
 44h	WORD	/NBS value
 46h	WORD	/BBC value
 48h	WORD	/BBS value
 4Ah	WORD	/PBC value
 4Ch	WORD	/PBS value
 4Eh	WORD	/PFS value
 50h	WORD	/PFT value
 52h	WORD	/PWT value
 54h	WORD	/KUC value
 56h	WORD	/KST value
 58h	WORD	/NVS value
 5Ah	WORD	/NMS value
 5Ch	WORD	/NDB value
 5Eh	WORD	/MBI value
 60h	BYTE	NetBIOS name number for machine name
 61h	BYTE	NetBIOS name number for domain name
 62h	WORD	NetBIOS sessions required for configuration
 64h	WORD	NetBIOS commands required for configuration
 66h	WORD	NetBIOS names required for configuration
 68h 128 BYTEs	NET START path (LANROOT)
 E8h	BYTE	00h

Bitfields for configuration flags:
Bit(s)	Description	(Table 1669)
 0	/NVS nonzero
 1	/NMS nonzero
 2	/API
 3	/HIM
 4	/LIM
 5	/ENC
 6	/POP
 7	/EMS
 8	/RPL
 9-12	reserved
 13	RDR started
 14	RCV started
 15	User is currently logged on
--------N-2FB900-----------------------------
INT 2F - PC Network RECEIVER.COM - INSTALLATION CHECK
	AX = B900h
Return: AL = state
	    00h if not installed
		 FFh if installed
--------N-2FB901-----------------------------
INT 2F - PC Network RECEIVER.COM - GET RECEIVER.COM INT 2F HANDLER ADDRESS
	AX = B901h
Return: AL = ???
	ES:BX -> RECEIVER.COM INT 2F handler
Desc:	allows more efficient execution by letting the caller bypass any other
	  INT 2F handlers which have been added since RECEIVER.COM was
	  installed
--------N-2FB903-----------------------------
INT 2F - PC Network RECEIVER.COM - GET RECEIVER.COM POST ADDRESS
	AX = B903h
Return: ES:BX -> POST handler
SeeAlso: AX=B803h,AX=B904h
--------N-2FB904-----------------------------
INT 2F - PC Network RECEIVER.COM - SET RECEIVER.COM POST ADDRESS
	AX = B904h
	ES:BX -> new POST handler
SeeAlso: AX=B804h,AX=B903h
--------N-2FB905-----------------------------
INT 2F - PC Network RECEIVER.COM - GET FILENAME
	AX = B905h
	DS:BX -> 128-byte buffer for filename 1
	DS:DX -> 128-byte buffer for filename 2
Return: buffers filled from RECEIVER.COM internal buffers
Note:	use of filenames is unknown, but one appears to be for storing messages
SeeAlso: AX=B906h
--------N-2FB906-----------------------------
INT 2F - PC Network RECEIVER.COM - SET FILENAME
	AX = B906h
	DS:BX -> 128-byte buffer for filename 1
	DS:DX -> 128-byte buffer for filename 2
Return: RECEIVER.COM internal buffers filled from user buffers
Note:	use of filenames is unknown, but one appears to be for storing messages
SeeAlso: AX=B905h
--------N-2FB908-----------------------------
INT 2F - PC Network RECEIVER.COM - UNLINK KEYBOARD HANDLER
	AX = B908h
	ES:BX -> INT 09 handler RECEIVER should call after it finishes INT 09
Note:	this call replaces the address to which RECEIVER.COM chains on an
	  INT 09 without preserving the original value.	 This allows a prior
	  handler to unlink, but does not allow a new handler to be added
	  such that RECEIVER gets the INT 09 first.
SeeAlso: AX=B808h
--------V-2FBC00-----------------------------
INT 2F - Windows 3.0, DOS 5+ EGA.SYS - INSTALLATION CHECK
	AX = BC00h
Return: AL = state
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
		BX = 5456h ("TV")
Range:	AH=80h to AH=FFh, selected by commandline switch
SeeAlso: AX=BC06h"EGA",INT 10/AH=FAh"EGA"
--------s-2FBC00BX3F3F-----------------------
INT 2F - MediaVision MVSOUND.SYS - INSTALLATION CHECK
	AX = BC00h
	BX = 3F3Fh ('??')
	CX = 0000h
	DX = 0000h
Return: if installed, BX XOR CX XOR DX = 4D56h ('MV')
Program: MVSOUND.SYS is a driver for the MediaVision ProAudio Spectrum family
	  of sound boards; its primary programmer was Bryan Crane
SeeAlso: AX=BC01h"MVSOUND",AX=BC02h,AX=BC03h,AX=BC04h,AX=BC06h"MVSOUND"
--------s-2FBC01-----------------------------
INT 2F - MediaVision MVSOUND.SYS - GET VERSION
	AX = BC01h
	BX = magic value 6D20h ('m ')
	CX = magic value 2076h (' v')
	DX = magic value 2020h ('  ')
Return: BX = ASCII major version (leading zeros significant)
	CX = ASCII minor version (leading zeros significant)
SeeAlso: AX=BC00h/BX=3F3Fh
--------s-2FBC02-----------------------------
INT 2F - MediaVision MVSOUND.SYS - GET STATE TABLE POINTER
	AX = BC02h
Return: BX:DX -> state table
SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC03h
--------s-2FBC03-----------------------------
INT 2F - MediaVision MVSOUND.SYS - GET FUNCTION TABLE POINTER
	AX = BC03h
Return: BX:DX -> function table
SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC02h
--------s-2FBC04-----------------------------
INT 2F - MediaVision MVSOUND.SYS - GET DMA AND IRQ CHANNELS
	AX = BC04h
Return: AX = 4D56h ('MV')
	BL = DMA channel
	CL = IRQ number
SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC01h"MVSOUND"
--------V-2FBC06-----------------------------
INT 2F U - MS Windows 3.0, DOS 5+ EGA.SYS - GET VERSION INFO
	AX = BC06h
Return: BX = 5456h ("TV")
	CH = major version
	CL = minor version
	DL = revision
SeeAlso: AX=BC00h"EGA",INT 10/AH=FAh"EGA"
--------s-2FBC06-----------------------------
INT 2F - MediaVision MVSOUND.SYS - GET STATUS STRING
	AX = BC06h
Return: AX = 4D56h ('MV')
	DX:BX -> status string (first byte 0Ch if no status message to display)
SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC01h"MVSOUND",AX=BC0Bh"MVSOUND"
--------s-2FBC0B-----------------------------
INT 2F - MediaVision MVSOUND.SYS - GET EXECUTABLE PATH
	AX = BC0Bh
Return: BX:DX -> ASCIZ path for MVPROAS.EXE, 0000h:0000h if not available
SeeAlso: AX=BC00h/BX=3F3Fh
--------U-2FBE00-----------------------------
INT 2F - REDVIEW - INSTALLATION CHECK
	AX = BE00h
Return: AL = FFh if installed
Program: REDVIEW is a public-domain TSR by Alexandr Novy and Petr Horak which
	  copies data sent to standard output to standard error when the
	  former has been redirected to a file, thus allowing the data to
	  be seen on the screen at the same time it is captured in a file
--------N-2FBF00-----------------------------
INT 2F - PC LAN PROGRAM REDIRIFS.EXE internal - INSTALLATION CHECK
	AX = BF00h
Return: AL = FFh if installed
--------N-2FBF01-----------------------------
INT 2F U - PC LAN PROGRAM REDIRIFS.EXE internal - ???
	AX = BF01h
	???
Return: ???
--------N-2FBF80-----------------------------
INT 2F - PC LAN PROG REDIR.SYS internal - SET REDIRIFS ENTRY POINT
	AX = BF80h
	ES:DI -> FAR entry point to IFS handler in REDIRIFS
Return: AL = FFh if installed
	    ES:DI -> internal workspace
Note:	all future IFS calls to REDIR.SYS are passed to the ES:DI entry point
--------F-2FC0-------------------------------
INT 2F - MTEZ XpressFax Hardware TSR (CLASS2) - API
	AH = C0h
	AL = function code (01h to 15h)
Return: ???
SeeAlso: AX=C000h/BX=444Bh,AX=CB00h/BX=4D53h
--------N-2FC000-----------------------------
INT 2F - Novell ODI Link Support Layer (LSL.COM) - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    DX:BX -> FAR entry point (see #1670,#1671,#1672)
	    ES:SI -> signature string "LINKSUP$"
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	on return, ES = DX for LSL v1.10 and v2.05; LSL makes use of this in
	  its search for a previous installation
SeeAlso: AX=5100h,AX=C000h"NESL"

(Table 1670)
Call LSL function "Request MLID Registration" with:
	BX = 0001h
	ES:SI -> registration??? record (see #1674)
	DS:DI -> buffer for LSL information block (see #1675)
Return: AX = completion code (0000h,8001h) (see #1673)
	DS:DI buffer filled if successful
	BX,CX corrupted
Note:	see "Novell LAN Driver Developer's Guide, Volume III" for more details

(Table 1671)
Call LSL function "get support entry points" with:
	BX = 0002h
	ES:SI -> buffer for entry point record (see #1676)
Return: ES:SI buffer filled

(Table 1672)
Call LSL function "Request MLID API entry point" with:
	BX = 0003h
Return: ES:SI -> MLID (Multiple Link Interface Driver) API entry point
		(call with BX=function 00h-10h, not range-checked)
Note:	LSL v1.10 and v2.05 execute BX=0003h for BX=0000h and any BX >= 0003h

(Table 1673)
Values for LSL completion code:
 0000h	successful
 8001h	out of resources
 8002h	bad parameter
 8003h	no more items
 8004h	item not present
 8005h	failed
 8006h	receive overflow
 8007h	canceled
 8008h	bad command
 8009h	duplicate entry
 800Ah	no such handler
 800Bh	no such driver

Format of LSL registration record:
Offset	Size	Description	(Table 1674)
 00h	DWORD	-> ??? FAR function (to be called with ES:SI -> ??? and
		  returning AX = completion code)
 04h	DWORD	-> ???
 08h	DWORD	-> ??? data (at least 3Eh bytes)

Format of LSL information block:
Offset	Size	Description	(Table 1675)
 00h	DWORD	-> ??? entry point (called with BX=function 00h-11h)
 04h	WORD	???
 06h	WORD	???
Note:	due to a fencepost error, LSL v2.05 (distributed with Novell DOS 7)
	  will crash if the above entry point is called with BX=0012h

Format of entry point record:
Offset	Size	Description	(Table 1676)
 00h	DWORD	pointer to protocol support entry point in LSL (see #1677)
 04h	DWORD	pointer to general support entry point in LSL (see #1678)

(Table 1677)
Call protocol support entry point with:
	BX = function number
	    0000h ???
	    0001h ???
	    0002h ???
	    0003h "ScheduleAESEvent"
		ES:SI -> AES ECB to be scheduled (see #1681)
		Return: ES,SI preserved
	    0004h "CancelAESEvent"
		ES:SI -> ECB to be cancelled (see #1681)
		Return: ES,SI preserved
	    0005h "GetIntervalMarker"
		Return: DX:AX = current interval marker in milliseconds
			all other registers preserved
	    0006h "RegisterStack"
		AX = logical board number
		ES:SI -> bound stack info structure (see #1691)
		Return: BX = assigned Stack ID if AX=0000h
	    0007h "DeRegisterStack"
		AX = protocol stack's assigned Stack ID
	    0008h "RegisterDefaultStack"
		AX = logical board number
		ES:SI -> stack info structure (see #1692)
	    0009h "DeRegisterDefaultStack"
		AX = logical board number
	    000Ah "RegisterPrescanStack"
		AX = logical board number
		ES:SI -> stack info structure (see #1692)
	    000Bh "DeRegisterPrescanStack"
		AX = logical board number
	    000Ch "SendPacket"
		ES:SI -> send ECB
		Return: interrupts disabled
	    000Dh ???
	    000Eh ???
	    000Fh ???
	    0010h "GetStackIDFromName"
		ES:SI -> counted NUL-terminated protocol name (max 15 chars)
		Return: BX = Stack ID if AX=0000h
	    0011h "GetPIDFromStackIDBoard"
		AX = Stack ID for protocol
		CX = logical board number
		ES:SI -> 6-byte buffer for protocol ID
	    0012h "GetMLIDControlEntry"
		AX = logical board number
		Return: ES:SI -> MLID control handler (see #1679) if AX=0000h
	    0013h "GetProtocolControlEntry"
		AX = Stack ID or
			FFFEh Prescan stack
			    CX = logical board number
			FFFFh default protocol
			    CX = logical board number
		Return: ES:SI -> protocol stack control entry point if AX=0000h
				  (see #1680)
	    0014h "GetLSLStatistics"
		Return: AX = 0000h (successful)
			ZF set
			ES:SI -> LSL statistics table (see #1683)
	    0015h "BindStack"
		AX = protocol stack's assigned Stack ID
		CX = logical board number
	    0016h "UnbindStack"
		AX = protocol stack's assigned Stack ID
		CX = logical board number
	    0017h "AddProtocolID"
		AX = frame type ID code
		ES:SI -> 6-byte protocol ID
		CX:DI -> counted NUL-terminated short protocol name (max 15 ch)
	    0018h "RelinquishControl"
		Return: after LSL performs any necessary background processing
	    0019h "GetLSLConfiguration"
		Return: AX = 0000h (successful)
			ZF set
			ES:SI -> LSL configuration table (see #1682)
	    001Ah "GetTickMarker"
		Return: AX = number of 55ms ticks since LSL loaded
			BX destroyed
Return: AX = completion code (see #1673)
	ZF set if successful
	SS:SP, DS, BP preserved; most other registers may be destroyed

(Table 1678)
Call general support entry point with:
	BX = function number
	    0000h "Allocate Memory" (obsolete)
		 always returns AX=8008h (BAD_COMMAND)
	    0001h "Free Memory" (obsolete)
		 always returns AX=8008h (BAD_COMMAND)
	    0002h "Realloc Memory" (obsolete)
		 always returns AX=8008h (BAD_COMMAND)
		 0003h "Memory Statistics" (obsolete)
		 always returns AX=8008h (BAD_COMMAND)
	    0004h "Add Memory To Pool" (obsolete)
		 always returns AX=8008h (BAD_COMMAND)
	    0005h "AddGeneralService"
		ES:SI -> General Service Control Block (see #1693)
	    0006h "RemoveGeneralService"
		ES:SI -> General Service Control Block (see #1693)
	    0007h "GetNETcfgPath"
		Return: AX = 0000h (successful)
			DS:DX -> ASCIZ pathname for NET.CFG
	    0008h U ???	 (in LSL 1.10)
		Return: AX = 0000h
			ES:SI -> ??? (a 22-byte data area)
	    000Ah "GetCriticalSectionStatus"
		Return: BX = total outstanding calls to "StartCriticalSection"
	    000Bh "ServiceEvents"
		interrupts disabled
		Return: interrupts disabled
	    0010h "GetStackECB"
		DS:DI -> Lookahead structure (see #1694)
		interrupts disabled
		Return: ES:SI -> ECB if successful (AX=0000h,ZF set)
			interrupts disabled
	    8000h-FFFFh reserved for user general service providers
Return: AX = completion code (see #1673)
	ZF set if successful
	SS:SP, DS, BP preserved

(Table 1679)
Call MLID control handler with:
	AX = logical board number
	BX = function number
	    0000h "GetMLIDConfiguration"
		Return: ES:SI -> MLID's configuration table if successful
				  (see #1686 for format)
	    0001h "GetMLIDStatistics"
		Return: ES:SI -> MLID's statistics table if successful
				  (see #1686 for format)
	    0002h "AddMulticastAddress"
		ES:SI -> 6-byte multicast address to add
	    0003h "DeleteMulticastAddress"
		ES:SI -> 6-byte multicast address to delete
	    0005h "MLIDShutdown"
		CX = type
		    0000h permanent (also deregisters from LSL)
			 other temporary (shutdown hardware only)
	    0006h "MLIDReset" reinitialize board / restart from temp shutdown
	    0007h "Create Connection" (obsolete?)
		???
	    0008h "Delete Connection" (obsolete?)
		???
	    0009h "SetLookAheadSize"
		CX = requested lookahead size (00h-80h)
	    000Ah "PromiscuousChange"
		CX = what to receive promiscuously
		    bit 0: MAC frames
		    bit 1: non-MAC frames
	    000Bh "RegisterReceiveMonitor"
		CX = subfunction
		    0000h disable receive monitoring
		    else  enable receive monitoring
		ES:SI -> monitor receive routine
		ES:DI -> monitor transmit routine
	    000Ch "Driver Poll" (obsolete?)
		???
Return: AX = completion code (see #1673)
	ZF set if successful
Note:	not all boards/MLIDs support function 0010h; see bit 13 in the MLID
	  mode flags field of the MLID's configuration table

(Table 1680)
Call protocol stack control entry point with:
	BX = function number
	    0000h "GetProtocolStackConfiguration"
		Return: ES:SI -> protocol stack's configuration table
				   (see #1685)
	    0001h "GetProtocolStackStatistics"
		Return: ES:SI -> protocol stack's statistics table (see #1684)
	    0002h "BindToMLID"
		CX = board number to bind to
		ES:SI -> implementation-dependant parameter string
	    0003h "UnBindFromMLID"
		CX = board number from which protocol should unbind
		ES:SI -> optional implementation-dependant parameter string
	    0004h "MLIDDeRegistered"
		CX = board number that has de-registered from LSL
Return: AX = status
	    0000h successful
	    else implementation-dependant error codes
	ZF set if successful
	SS:SP, DS, BP preserved

Format of AES ECB:
Offset	Size	Description	(Table 1681)
 00h	DWORD	"AESLink" pointer used by LSL for list management
 04h	DWORD	number of milliseconds to wait
 08h	DWORD	"AESStatus" (is set to 00000000h when AES ESR is invoked)
 0Ch	DWORD	-> function to be invoked when time expires
		ES:SI will point to this structure on entry,
		DS, BP, and SS:SP must be preserved.
SeeAlso: #1695

Format of LSL Configuration Table:
Offset	Size	Description	(Table 1682)
 00h	BYTE	major version of configuration table
 01h	BYTE	minor version of configuration table (decimal, 0-99)
 02h  8 BYTEs	reserved
 0Ah	BYTE	LSL major version (decimal)
 0Bh	BYTE	LSL minor version (decimal, 0-99)
---LSL 1.0x ---
 0Ch 14 BYTEs	reserved
---LSL 1.10+ ---
 0Ch	WORD	maximum number of boards which LSL can handle
 0Eh	WORD	maximum number of protocol IDs which LSL can handle
 10h 12 BYTEs	reserved

Format of LSL Statistics Table:
Offset	Size	Description	(Table 1683)
 00h	BYTE	major version of statistics table format
 01h	BYTE	minor version of statistics table format (decimal, 0-99)
 02h	WORD	"GenericCounters" number of counters in static portion of
		  table
 04h	DWORD	"ValidCountersMask" bit mask indicating which generic
		  counters are actually used.  Bit 31 = TotalTxPackets, bit 30
		  is the next field, etc.
 08h	DWORD	"TotalTxPackets" total SendPacket requests made
 0Ch	DWORD	reserved
 10h	DWORD	reserved
 14h	DWORD	"AESEventsCount" number of completed AES events
 18h	DWORD	"PostponedEvents" number of events postponed due to critical
		  sections inside the MLIDs
 1Ch	DWORD	"CancelAESFailures" number of times CancelAESEvent failed
 20h	DWORD	reserved
 24h	DWORD	reserved
 28h	DWORD	"TotalRxPackets" total number of GetStackECB requests
 2Ch	DWORD	"UnclaimedPackets" total number of packets not consumed by a
		  protocol stack
 30h	WORD	"NumberCustom" number of custom variables that follow
 32h  N DWORDs	custom counters
      N DWORDs	-> CustomCounterStrN (one per custom counter)
	var	length-prepended and NULL terminated string for Counter 0
	...
	var	length-prepended and NULL terminated string for Counter N-1
SeeAlso: #1684,#1690

Format of Protocol Stack Statistics Table:
Offset	Size	Description	(Table 1684)
 00h	BYTE	statistics table major version
 01h	BYTE	statistics table minor version (decimal, 0-99)
 02h	WORD	number of generic counters following
 04h	DWORD	"ValidCountersMask" (bitmask, bit 31 is TotalTxPackets)
 08h	DWORD	TotalTxPackets
 0Ch	DWORD	TotalRxPackets
 10h	DWORD	IgnoredRxPackets
 14h	WORD	number of custom counters
 16h  N DWORDs	custom counters
      N DWORDs	-> CustomCounterStrN (one per custom counter)
	var	length-prepended and NULL terminated string for Counter 0
	...
	var	length-prepended and NULL terminated string for Counter N-1
SeeAlso: #1683,#1690

Format of Protocol Stack Configuration Table:
Offset	Size	Description	(Table 1685)
 00h	BYTE	configuration table major version
 01h	BYTE	configuration table minor version (decimal, 0-99)
 02h	DWORD	-> counted NUL-terminated long descriptive name for protocol
 06h	DWORD	-> counted NUL-terminated short name for protocol (15 chars)
 0Ah	BYTE	protocol stack major version
 0Bh	BYTE	protocol stack minor version (decimal, 0-99)
 0Ch 16 BYTEs	reserved for future use

Format of MLID Configuration Table:
Offset	Size	Description	(Table 1686)
 00h 26 BYTEs	signature 'HardwareDriverMLID	     ' (8 spaces on end)
 1Ah	BYTE	configuration table major version
 1Bh	BYTE	configuration table minor version (decimal, 0-99)
 1Ch  6 BYTEs	node address
 22h	WORD	MLID mode flags (see #1687)
 24h	WORD	board number
 26h	WORD	board instance (if more than one of same board installed)
 28h	WORD	maximum packet size
 2Ah	WORD	BestDataSize
 2Ch	WORD	WorstDataSize
 2Eh	DWORD	-> counted NUL-terminated long name for NIC
 32h	DWORD	-> counted NUL-terminated short name for NIC (8 chars max)
 36h	DWORD	-> counted NUL-terminated Frame and Media type
 3Ah	WORD	reserved (0000h)
 3Ch	WORD	frame type ID
 3Eh	WORD	TransportTime (milliseconds)
 40h	DWORD	-> SourceRouteHandler for TokenRing. (Used by ROUTE.COM)
 44h	WORD	lookahead size
 46h	WORD	line speed (Mbps if high bit clear, else Kbps)
 48h	WORD	QueueDepth
 4Ah  6 BYTEs	reserved (0)
 50h	BYTE	driver major version
 51h	BYTE	driver minor version (decimal, 0-99)
 52h	WORD	bus/multicast flags (see #1688)
 54h	WORD	send retries
 56h	DWORD	ConfigTableLink
 5Ah	WORD	MLID sharing flags (see #1689)
 5Ch	WORD	slot number
 5Eh	WORD	I/O address 1
 60h	WORD	I/O range 1
 62h	WORD	I/O address 2
 64h	WORD	I/O range 2
 66h	DWORD	memory address 1
 6Ah	WORD	memory size 1
 6Ch	DWORD	memory address 2
 70h	WORD	memory size 2
 72h	BYTE	interrupt line 1
 73h	BYTE	interrupt line 2
 74h	BYTE	DMA line 1
 75h	BYTE	DMA line 2

Bitfields for MLID mode flags:
Bit(s)	Description	(Table 1687)
 15	MLID supports Octet Reversal
 14	node address is non-canonical
 13	promiscuous mode is supported
 12-8	reserved
 7	LDataSize field in LookAhead structure supported
 6	raw send supported
 5	MLID needs to be polled by LSL
 4	reserved (0)
 3	multicasting is supported
 2	not currently used by DOS ODI, set to 0.
 1	network card uses DMA.
 0	RealDriverBit, always set to 1.

Bitfields for bus/multicast flags:
Bit(s)	Description	(Table 1688)
 10-9	specialized multicast support
	00 = Group addressing is default for medium
	01 = Invalid
	10 = Filter group address in MLID.
	11 = Adapter filters group address.
 2	supports Micro Channel cards
 1	supports ISA cards
 0	supports EISA cards

Bitfields for MLID sharing flags:
Bit(s)	Description	(Table 1689)
 8	NIC can share DMA2
 7	NIC can share DMA1
 6	NIC can share IRQ2
 5	NIC can share IRQ1
 4	NIC can share Memory2
 3	NIC can share Memory1
 2	NIC can share IO2
 1	NIC can share IO1
 0	MLID is currently shut down

Format of MLID Statistics Table:
Offset	Size	Description	(Table 1690)
 00h	BYTE	driver statistics table major version
 01h	BYTE	driver statistics table minor version (decimal, 0-99)
 02h	WORD	number of generic counters (typically 13)
 04h	DWORD	"ValidCountersMask" (bit mask, bit 31 is TotalTxCount)
 08h	DWORD	TotalTxCount
 0Ch	DWORD	TotalRxCount
 10h	DWORD	NoECBAvailableCount
 14h	DWORD	TxTooBigCount
 18h	DWORD	TxTooSmallCount
 1Ch	DWORD	RxOverflowCount
 20h	DWORD	RxTooBigCount
 24h	DWORD	RxTooSmallCount
 28h	DWORD	TxMiscCount
 2Ch	DWORD	RxMiscCount
 30h	DWORD	TxRetryCount
 34h	DWORD	RxChecksumErrorCount
 38h	DWORD	RxMismatchCount
 3Ch	WORD	number of custom counters
 3Eh  N DWORDs	custom counters
      N DWORDs	-> CustomCounterStrN (one per custom counter)
	var	length-prepended and NULL terminated string for Counter 0
	...
	var	length-prepended and NULL terminated string for Counter N-1
SeeAlso: #1683,#1684

Format of bound stack info structure:
Offset	Size	Description	(Table 1691)
 00h	DWORD	-> protocol stack's short name (counted, NUL-terminated)
 04h	DWORD	-> receive handler
 08h	DWORD	-> control handler

Format of stack info structure:
Offset	Size	Description	(Table 1692)
 00h	DWORD	-> receive handler
 04h	DWORD	-> control handler

Format of General Service Control Block:
Offset	Size	Description	(Table 1693)
 00h	DWORD	-> next GSCB (maintained internally by LSL)
 04h	DWORD	-> entry point for general service handler
 08h	WORD	command code for this general service (8000h-FFFFh)
Note:	the control block must not be altered or deallocated until the general
	  service is removed

Format of Lookahead structure:
Offset	Size	Description	(Table 1694)
 00h	DWORD	-> Media header
 04h	DWORD	-> lookahead buffer
 08h	WORD	length of lookahead buffer
 0Ah  6 BYTEs	protocol ID
 10h	WORD	logical board number
 12h	WORD	lookahead size

Format of ODI ECB:
Offset	Size	Description	(Table 1695)
 00h	DWORD	link to next ECB
 04h	DWORD	link to previous ECB
 08h	WORD	general status
		0000h received successfully
		8006h packet overflow
		8007h reception aborted (data not valid)
 0Ah	DWORD	-> event service routine or RETF (never 0000h:0000h)(see #1696)
 0Eh	WORD	protocol stack identifier
 10h  6 BYTEs	protocol ID (sending only)
 16h	WORD	MLID board number (sending only)
 18h  6 BYTEs	MAC destination address
 1Eh  4 BYTEs	driver workspace
 22h  4 BYTEs	protocol workspace
 26h	WORD	total length of sent buffer
 28h	WORD	fragment count
 2Ah  2 WORDs	segment,offset of first fragment buffer
 2Eh	WORD	length of first fragment buffer
	...
SeeAlso: #1681

(Table 1696)
Values event service routine is called with:
	ES:SI -> associated ODI ECB (see #1695)
	interrupts disabled
Return: DS,BP,SS,SP preserved
	interrupt disabled
Notes:	the service routine may invoke any IPX/ODI function except CloseSocket
	it is safe to send a packet and wait for completion if enough stack
	  space is available
--------N-2FC000-----------------------------
INT 2F - Novell NetWare Event Service Layer (NESL) 1.0 - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    DX:BX -> FAR entry point (see #1697,#1698,#1699,#1700,#1701,#1702)
		 ES:SI -> signature string "NESL_EVENTS"
Program: NESL is a generic interface for event handling in ODI drivers and
	  other NetWare-oriented modules.  Primarily intended to support
	  power management and "hot swapping" of PCMCIA cards, but it is not
	  limited to this.
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"Link Support Layer",AX=C000h"NETWARN"

(Table 1697)
Call NESL function GetNESLConfigPointer with:
	BX = 0000h
Return: AX = completion code (0000h,8008h) (see #1703)
	ES:SI -> NESL configuration table if successful (see #1704)
	BP,DS,STACK preserved
Desc:	Obtain a pointer to the NESL Configuration Table
SeeAlso: #1698,#1701

(Table 1698)
Call NESL function RegisterEventProducer with:
	BX = 0001h
	ES:SI -> Producer Event Control Block (PECB) (see #1705)
Return: AX = completion code (0000h, 8005h, 8008h) (see #1703)
	ES:SI -> still points to PECB
	BP,DS,STACK preserved
Desc:	Allows a module to register as a producer of a given event class
Note:	PECB_ClassName and PECB_Flags must be filled in on entry
SeeAlso: #1577,#1699,#1700,#1701

(Table 1699)
Call NESL function DeRegisterEventProducer with:
	BX = 0002h
	ES:SI -> PECB previously passed to RegisterEventProducer (see #1705)
Return: AX = completion code (0000h, 8002h, 8008h) (see #1703)
	ES:SI -> still points to PECB
	BP,DS,STACK preserved
Desc:	Allows a module to de-register as a producer of a given event class
SeeAlso: #1698,#1702

(Table 1700)
Call NESL function EventNotification with:
	BX = 0003h
	ES:SI -> PECB previously registered (see #1705)
Return: AX = completion code (0h, 8005h, 8008h) (see #1703)
	ES:SI -> still points to PECB
	BP,DS,STACK preserved
Desc:	Allows a module to signal that an event has just occurred in a given
	  event class.
Notes:	Once called, NESL will generate corresponding callouts for this
	  event, as described in Table #1707.
	on entry, the PECB_DataPtr must point at an Event Parameter Block (EPB)
	  (see #1708) filled in to match the desired event
SeeAlso: #1698

(Table 1701)
Call NESL function RegisterEventConsumer with:
	BX = 0004h
	ES:SI -> Consumer Event Control Block (CECB) (see #1706)
Return: AX = completion code (0h, 8005h, 8008h) (see #1703)
	ES:SI -> still points to CECB
	BP,DS,STACK preserved
Desc:	Allows a module to register as a consumer of a given event class
Note:	on entry, the CECB_ClassName, CECB_NotifProc and CECB_OSILevel must be
	  filled in.
SeeAlso: #1698,#1702

(Table 1702)
Call NESL function DeRegisterEventConsumer with:
	BX = 0005h
	ES:SI -> CECB previously passed to RegisterEventConsumer (see #1706)
Return: AX = completion code (0h, 8002h, 8008h) (see #1703)
	ES:SI -> still points to CECB
	BP,DS,STACK preserved
Desc:	Allows a module to de-register as a consumer of a given event class
SeeAlso: #1699,#1701

(Table 1703)
Values for NESL Error code:
 0000h	Successful
 8002h	Bad Parameter
 8005h	Fail
 8008h	Bad Command

Format of NESL Configuration Table:
Offset	Size	Description	(Table 1704)
 00h	WORD	NESL_Cfg_MajVer	 Major Version of this table (=1)
 02h	WORD	NESL_Cfg_MinVer	 Minor Version of this table (=0)
 04h	DWORD	NESL_Cfg_ModLName   -> ASCIZ long name of NESL module
		(typically -> "NetWare Event Service Layer for 16-Bit DOS")
 08h	DWORD	NESL_Cfg_ModSName   -> ASCIZ short name of NESL module
		(typically -> "NESL")
 0Ch	WORD	NESL_Cfg_ModMajVer  Major Version of NESL itself (=1)
 0Eh	WORD	NESL_Cfg_ModMinVer  Minor Version of NESL itself (=0)

Format of NESL Producer Event Control Block (PECB):
Offset	Size	Description	(Table 1705)
 00h	WORD	PECB_MajVer  Major Version of this structure (=1)
 02h	WORD	PECB_MinVer  Minor Version of this structure (=0)
 04h	DWORD	PECB_NextProducer   -> next PECB.  NULL if last.
 08h	DWORD	PECB_ClassName	    -> ASCIZ string identifying event 
					  class (see #1709)
 0Ch	DWORD	PECB_ConsumerList   -> list of consumers for this event class
 10h	DWORD	PECB_DataPtr	    -> points to additional data during events
 14h	DWORD	PECB_Flags
		Bit 0	=0  consumers should be called "top down" for this
			    event class.  (OSI level 7 down to OSI level 1)
			=1  consumers should be called "bottom up"
		Bits 1-31   Reserved =0
 18h  8 BYTEs	PECB_Reserved (all zeros)
Note:	Although the event producer provides the memory for the PECB, the
	  NESL module controls this memory until the event class is
	  de-registered.
	While owned by NESL, this structure should be treated as read-only,
	  except for the PECB_DataPtr field.

Format of NESL Consumer Event Control Block (CECB):
Offset	Size	Description	(Table 1706)
 00h	WORD	CECB_MajVer  Major Version of this structure (=1)
 02h	WORD	CECB_MinVer  Minor Version of this structure (=0)
 04h	DWORD	CECB_NextConsumer   -> next CECB.  NULL if last.
 08h	DWORD	CECB_ClassName	    -> ASCIZ string identifying event 
					  class (see #1709)
 0Ch	DWORD	CECB_NotifProc	    -> FAR CALL event handler (see #1707)
 10h	WORD	CECB_OSILevel
		Bits 4-7 = OSI Layer of this module (1 through 7)
		Bits 0-3 = relative ordering with other modules on same layer
 13h 14 BYTEs	CECB_Reserved (all zeros)
Note:	Although the event consumer provides the memory for the CECB, the
	  NESL module controls this memory until the consumer is de-registered.
	While owned by NESL, this structure should be treated as read-only,

(Table 1707)
Values NESL Consumer Notification Procedure is called with:
	ES:SI -> Event Parameter Block (EPB) (see #1708)
Return: AX = completion code (0000h, 8005h) (see #1703)
	ES:SI -> still points to EPB
Desc:	Called by NESL to notify the consumer when an event has occurred in
	  an event class for which it has registered.
SeeAlso: #1706

Format of NESL Event Parameter Block (EPB):
Offset	Size	Description	(Table 1708)
 00h	WORD	EPB_MajVer  Major Version of this structure (=1)
 02h	WORD	EPB_MinVer  Minor Version of this structure (=0)
 04h	DWORD	EPB_ClassName  -> ASCIZ string identifying event class 
				  (see #1709)
 08h	DWORD	EPB_EventName  -> ASCIZ string identifying event within 
				  class (see #1710)
 0Ch	DWORD	EPB_ModuleName -> ASCIZ string identifying module 
				  producing event
 10h	DWORD	EPB_DataPtr0   -> event-defined data or NULL if not used
 14h	DWORD	EPB_DataPtr1   -> event-defined data or NULL if not used
 18h  8 BYTEs	EPB_Reserved (all zeros)

(Table 1709)
Values for NESL Event Class Names:
 Event Class		Description
 -------------------	-----------------------------------------
 Service Suspend	Suspension of a service.  Called top-down.
 Service Resume		Resumption/availability of a service. Called bottom-up.
 Service/Status Change	Change in status or level of service.  Called top-down.
 Suspend Request	Request to suspend a service.  Called bottom-up.
Note:	Contact Novell Labs to register new event classes.

(Table 1710)
Values for NESL Event Names:
 Event Name			Class		    Description
 --------------------------	-------------	    ---------------------------
 MLID Cable Disconnect		Service Suspend	    Cable disconnected from NIC
 MLID Card Removal		Service Suspend	    PCMCIA card removed
 MLID Hardware Failure		Service Suspend	    Serious hardware 
							  failure in NIC
 MLID Not In Range		Service Suspend	    Wireless access point 
							  is out of range
 MLID Shutdown			Service Suspend	    MLID was shut down
 MLID Media Access Denied	Service Suspend	    Access to physical 
							  medium unsuccessful
 MLID Cable Reconnect		Service Resume	    Cable re-connected to NIC
 MLID Card Insertion Complete	Service Resume	    PCMCIA card inserted
 MLID In Range			Service Resume	    Wireless access point 
							  in range
 MLID Reset			Service Resume	    MLID was just reset
 MLID Access Point Change	Serv/Status Change  Station has moved to 
							  new access point
 MLID Speed Change		Serv/Status Change  Change in communic. speed
Note:	Contact Novell Labs to register new event names.
	For all predefined events above, EPB_DataPtr0 (see #1708) points
	  to the MLID Configuration table (see AX=C000h"ODI") for the
	  affected MLID.
--------N-2FC000-----------------------------
INT 2F - Novell NetWare Connect NETWARN - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    SI = segment of resident portion
Program: NETWARN is a utility supplied with NetWare Connect to warn a
	  remote dialup user when programs are about to be loaded slowly over
	  the modem link.
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	on return, verify that it is NETWARN responding by examining signature
	  at in NETWARN's data table in the resident segment (see #1711)
SeeAlso: AX=C000h"ODI",AX=C000h"NESL"

Format of NETWARN Configuration structure:
Offset	Size	Description	(Table 1711)
 103h 7 BYTEs	signature string "NETWARN"
 10Ah	BYTE	major version in ASCII (="1")
 10Bh	BYTE	minor version in ASCII (="0")
 10Ch	DWORD	minimum size of EXE cared about in bytes (/S=xxxx)
 110h	WORD	same value in kilobytes (see 0113h, bit 4 below)
 112h	BYTE	multiplex code (AH value) actually being used
 113h	WORD	options (see #1712)
 115h	DWORD	INT 21h vector before NETWARN loaded
 119h	DWORD	INT 2Fh vector before NETWARN loaded
 11Dh 16 BYTEs	ASCIIZ local name of last device which was checked
 12Dh 128 BYTEs ASCIIZ remote name of last device which was checked
Note:	the specified offsets are from the start of the resident segment

Bitfields for NETWARN options:
Bit(s)	Description	(Table 1712)
 0	??? (=0)
 1	/U (Unload) selected (never in resident)
 2	/E (Enabled) Will trap & check EXEC's
 3	/D (Disabled) No EXEC checking done
 4	/S (Size) was set (see 010Ch, 0110h above)
 5	/P (Path shown)
 6	/H or /? (Help) (never in resident)
SeeAlso: #1711
--------f-2FC000-----------------------------
INT 2F - FN32 32 character filename utilities - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
		ES:DI -> signature string "FN32 32CHAR TSR"
Program: FN32 is a TSR which supports 32 character filenames under PC/MS-DOS
Note:	the TSR intercepts INT 21 calls and performs filename substitution by
	  managing dictionary files in each directory which contains long
	  filenames
--------M-2FC000-----------------------------
INT 2F - QMR - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    ES:DI -> signature string "QMR1!"
Program: QMR (Cove Software, Quick Mouse Reset) monitors the mouse
	  service interrupt (int 33h) and substitutes a fast software
	  reset (mouse fn 21h) for the slow hardware reset (mouse fn 0).
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C001h"QMR",AX=C002h"QMR",AX=C003h"QMR"
--------V-2FC000-----------------------------
INT 2F - VGAsave v1.93 - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    BX = segment of resident code
Program: VGAsave is a freeware VGA-specific, mouse-aware screenblanker by Bill
	  Javurek
Range:	AH=C0h to AH=FFh, selected by scanning for a free multiplex number
Note:	the transient portion of VGAsave compares the first 38 bytes of the
	  resident code (addressed through BX) against its own copy of the
	  resident code to complete the installation check
SeeAlso: INT 14/AX=AA01h,INT 2F/AH=93h
Index:	screen saver;VGAsave
--------V-2FC000-----------------------------
INT 2F - AD-DOS - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    BX = 4144h ('AD')
	    CX = 2D44h ('-D')
	    DX = 4F53h ('OS')
Program: AD-DOS is the DOS version of the After Dark screen blanker for
	  MS Windows
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C001h,AX=C003h,AX=C005h,AX=C007h,AX=C009h,AX=C020h,INT 14/AX=AA01h
Index:	screen saver;AD-DOS
--------U-2FC000-----------------------------
INT 2F U - WANG_ER.COM - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    ES = segment of resident code
Program: WANG_ER is a TSR from Compaq which permits Compaq systems equipped
	  with 3-mode floppy drives to read Wang document diskettes
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	The installation check is completed by comparing the resident code
	  with the copy in the transient program
--------i-2FC000-----------------------------
INT 2F O - ASPIHOOK.SYS - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if multiplex number in use
	    ES:DI -> ASCIZ signature "ASPIHOOK" if ASPIHOOK.SYS installed
Program: ASPIHOOK is a device driver for monitoring SCSI activity through an
	  ASPI host manager; it is part of the Personal Measure system
	  activity monitor from Spirit of Performance, Inc.
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"PMEASURE"
--------i-2FC000-----------------------------
INT 2F - PMEASURE.EXE - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if multiplex number in use
	    ES:DI -> ASCIZ signature "PMEASURE.EXE" if PMEASURE.EXE installed
Program: PMEASURE.EXE is a TSR for monitoring system hardware activity which
	  is part of the Personal Measure system activity monitor from Spirit
	  of Performance, Inc.
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	If a Personal Measure Hook Module, such as ASPIHOOK.SYS, is already
	  installed, PMEASURE.EXE uses the next highest free multiplex number.
SeeAlso: AX=C000h"ASPIHOOK",AX=C000h"PERSONAL MEASURE"
--------i-2FC000-----------------------------
INT 2F - PERSONAL MEASURE - HOOK MODULE INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	ES:DI -> signature string "PMEASUREHOOK"
	AX = C000 if not installed, per mux id conventions
	DH = major release number (binary)
	DL = minor release number (binary)
Program: The Personal Measure system activity monitor from Spirit of
	  Performance, Inc. uses an extensible series of modules to hook
	  into various operating system interfaces and monitor system calls.
	  Current hook modules are ASPIHOOK.SYS for ASPI device activity
	  and CDRHOOK.SYS for non-ASPI CD-ROM activity.	 All hook modules
	  share the same mux id.
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"PMEASURE.EXE",AX=C001h"PERSONAL MEASURE"
--------c-2FC000-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
		 SI = signature value 20D6h
	    DI = signature value 8761h
	    ES:BX -> configuration table (see #1713)
	    CX = ??? (0300h)
	    DX = ??? (0020h)
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=0100h/SI=20D6h,AX=C001h"PCACHE"

Format of PrintCache configuration table:
Offset	Size	Description	(Table 1713)
 00h 26 BYTEs	ASCIZ signature string "TORQ Configuration Table: "
 1Ah  2 BYTEs	???
 1Ch	DWORD	-> data table (see #1714)
 20h  4 BYTEs	ASCIZ version string ("3.1" for v3.1)
 24h  5 BYTEs	???
 29h 12 BYTEs	ASCIZ version date string ("Aug 31 1993" for v3.1)
 35h	WORD	buffered port type (01h = LPT, 02h = COM)
 37h	WORD	buffered port BIOS port number
 39h  5 BYTEs	ASCIZ buffered port name ("LPTn" or "COMn")
 3Eh	WORD	physical port type (01h = LPT, 02h = COM)
 40h	WORD	physical port BIOS port number
 42h  5 BYTEs	ASCIZ physical port name ("LPTn" or "COMn")
 47h	BYTE	port driver IRQ
 48h 21 BYTEs	???
 5Dh	WORD	buffer size in K
 5Fh 27 BYTEs	???
 7Ah	BYTE	popup hotkey shift states (see #0442 at INT 16/AH=02h)
 7Bh	BYTE	popup hotkey scan code (see #0005 at INT 09h"IRQ1")
 7Ch  4 BYTEs	???
 80h 20 BYTEs	ASCIZ printer type name
	???

Format of PrintCache data table:
Offset	Size	Description	(Table 1714)
 00h  2 BYTEs	???
 02h	DWORD	-> ??? entry point
	???
--------U-2FC000-----------------------------
INT 2F - Frank Kintrup TSR Utilities - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    BX = program ID (see #1715)
	    CX = 464Bh (signature "FK")
	    DX = revision number (DH = major, DL = minor)
		 ES = resident segment of TSR
Range:	AH=C0h to AH=FFh, selected by searching for a free multiplex number
SeeAlso: AX=C001h"Kintrup",AX=C002h"Kintrup"

(Table 1715)
Values for Frank Kintrup TSR program ID:
 4153h	"AS"	ASCII.COM	ASCII table with paste function
 434Ch	"CL"	CLOCK.COM	clock with date/time display and alarm
 5043h	"PC"	PCALC.COM	programmer's calculator with paste function
 5343h	"SC"	SCRSAVE.COM	screen saver with mouse support and hotkey
 5544h	"UD"	UNDEL.COM	undelete program like SMARTCAN or DPROTECT
--------K-2FC000-----------------------------
INT 2F U - HP 100LX/200LX - PUSHKEYS - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if possibly installed
Range:	AH=C0h to AH=FFh, selected by scanning for signature with AL=AEh
SeeAlso: AX=C001h"HP 100LX",AX=C0AEh"HP 100LX",AX=C0AFh"HP 100LX"
--------V-2FC000-----------------------------
INT 2F - DIMWIT - INSTALLATION CHECK
	AX = C000h
Return: AL = FFh if installed
	    ES:DI -> signature string "DIMDOS" or "DIMWIN"
Program: DIMWIT is a freeware Windows-aware screen blanker by Larry Board
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"AD-DOS",AX=C001h"DIMWIT"
Index:	screen saver;DIMWIT
--------F-2FC000BX444B-----------------------
INT 2F - MTEZ XpressFax Hardware TSR (CLASS2) - INSTALLATION CHECK
	AX = C000h
	BX = 444Bh ('DK')
	CX = 4A4Eh ('AN')
Return: AL = status
	    00h not installed, OK to install
	    FFh installed
		BX = 646Bh ('dk')
		CX = 6A6Eh ('an')
Range:	AH=C0h to AH=FFh, selected automatically
SeeAlso: AH=C0h"MTEZ"
----------2FC000-----------------------------
INT 2F U - TSENGP.COM - INSTALLATION CHECK
	AX = C000h
Return: AL = status
	    00h not installed, OK to install
	    FFh installed
		DS = segment of resident code
Program: TSENGP.COM is a TSR supplied by Compaq to fix an incompatibility
	  between some applications and Tseng ET4000-based video adapters
Range:	AH=C0h to AH=FFh, selected automatically
Note:	the installation check is completed by comparing the first eleven
	  bytes at DS:005Fh against the TSR's code (80h FCh 06h 74h 0Ah
	  80h FCh 07h 74h 05h EAh)
--------M-2FC001-----------------------------
INT 2F - QMR - REQUEST HARDWARE RESET
	AX = C001h
Return: ES = QMR code segment
	AL destroyed
Desc:	this function is used to force a full mouse reset when QMR is installed
SeeAlso: AX=C000h"QMR",AX=C002h"QMR"
--------V-2FC001-----------------------------
INT 2F - DIMWIT - GET CONFIGURATION DATA
	AX = C001h
Return: ES:DI -> TSR configuration data (see #1716)
Program: DIMWIT is a freeware Windows-aware screen blanker by Larry Board
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"DIMWIT",AX=C001h"AD-DOS"
Index:	screen saver;DIMWIT

Format of DIMWIT TSR configuration data:
Offset	Size	Description	(Table 1716)
 00h	WORD	blanking delay in clock ticks
 02h	BYTE	instant-blanking hotkey scan code
		Ctrl and Alt must also be pressed
--------V-2FC001ES0000-----------------------
INT 2F - AD-DOS - GET RESIDENT CODE SEGMENT
	AX = C001h
	ES = 0000h
Return: AL = 00h if successful
	    ES = AD-DOS TSR Code Segment
SeeAlso: AX=C000h"AD-DOS",AX=C001h"DIMWIT"
Index:	screen saver;AD-DOS
--------c-2FC001-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ENTRY POINTS
	AX = C001h
Return: AL = FFh if installed
	    ES:BX -> ???
	    ES:DX -> ???
	    ES:SI -> ???
	    ES:DI -> ??? (equivalent to AX=C002h)
SeeAlso: AX=C000h"PCACHE",AX=C002h"PCACHE"
--------U-2FC001-----------------------------
INT 2F - Frank Kintrup TSR Utilities - CLOCK - DISABLE DISPLAY UPDATE
	AX = C001h
Range:	AH=C0h to AH=FFh, selected by searching for a free multiplex number
SeeAlso: AX=C000h"Kintrup",AX=C002h"Kintrup"
--------K-2FC001CX03FB-----------------------
INT 2F U - HP 100LX/200LX - PUSHKEYS - INTERNAL - UNINSTALL
	AX = C001h
	CX = 03FBh return address to continue uninstall if possible
Return: program uninstalled
Range:	AH=C0h to AH=FFh, selected by scanning for signature with AL=AEh
SeeAlso: AX=C000h"HP 100LX",AX=C0AEh"HP 100LX",AX=C0AFh"HP 100LX"
--------i-2FC001-----------------------------
INT 2F - PERSONAL MEASURE - PASS PARAMETERS TO HOOK MODULE(S)
	AX = C001h
	DX = segment of PMEASURE.EXE or 0000h
	BX = offset in PMEASURE.EXE or 0000h
	CX = offset in PMEASURE.EXE or 0000h
Return: None
Program: PMEASURE.EXE is a TSR for monitoring system hardware activity which
	  is part of the Personal Measure system activity monitor from Spirit
	  of Performance, Inc.	PMEASURE uses this call to inform its hook
	  modules whether or not it is running and to pass information about
	  shared data and procedures.
Warning: This information documents a function that is private to Personal
	  Measure and is provided as information only.	It should NOT be called
	  by any software other than Personal Measure.
SeeAlso: AX=C000h"PERSONAL MEASURE HOOK MODULE"
--------V-2FC002-----------------------------
INT 2F - AD-DOS - CHECK FOR NEW INPUT
	AX = C002h
Return: AL = 00h if successful
	    BX = status
		0000h no input since last check
		0001h new input available
Note:	this call also resets the new-input flag
SeeAlso: AX=C000h"AD-DOS",AX=C004h
Index:	screen saver;AD-DOS
--------M-2FC002-----------------------------
INT 2F - QMR - DISABLE QMR
	AX = C002h
Return: ES = QMR code segment
	AL destroyed
Desc:	this call temporarily disables QMR
SeeAlso: AX=C000h"QMR",AX=C003h"QMR"
--------c-2FC002-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - GET BUFFER SIZE
	AX = C002h
Return: AX = ??? in K
	BX = size of print buffer in K
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
SeeAlso: AX=C000h"PCACHE"
--------U-2FC002-----------------------------
INT 2F - Frank Kintrup TSR Utilities - CLOCK - ENABLE DISPLAY UPDATE
	AX = C002h
Range:	AH=C0h to AH=FFh, selected by searching for a free multiplex number
SeeAlso: AX=C000h"Kintrup",AX=C002h"Kintrup"
--------V-2FC003-----------------------------
INT 2F - AD-DOS - SET MINUTES TO WAIT
	AX = C003h
	BX = minutes to wait before blanking screen
Return: AL = 00h if successful
Program: AD-DOS is the DOS version of the After Dark screen blanker for
	  MS Windows
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	this call also resets the delay timer
SeeAlso: AX=C000h"AD-DOS",AX=C004h
Index:	screen saver;AD-DOS
--------M-2FC003-----------------------------
INT 2F - QMR - ENABLE QMR
	AX = C003h
Return: ES = QMR code segment
	AL destroyed
Desc:	this call enables QMR after it has been disabled
SeeAlso: AX=C000h"QMR",AX=C002h"QMR"
--------c-2FC003-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? FLAG
	AX = C003h
Return: BX destroyed
SeeAlso: AX=C004h"PCACHE"
--------V-2FC004-----------------------------
INT 2F - AD-DOS - GET MINUTES TO WAIT
	AX = C004h
Return: AL = 00h if successful
	    BX = minutes to wait before blanking screen
SeeAlso: AX=C000h"AD-DOS",AX=C003h"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC004-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - CLEAR ??? FLAG
	AX = C004h
Return: BX destroyed
SeeAlso: AX=C003h"PCACHE"
--------V-2FC005-----------------------------
INT 2F - AD-DOS - SET BLANKER STATUS
	AX = C005h
	BX = new state (0000h inactive, 0001h active) (default 0001h)
Return: AL = 00h if successful
SeeAlso: AX=C006h"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC005-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C005h
	???
Return: BX destroyed
	???
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=C000h"PCACHE"
--------V-2FC006-----------------------------
INT 2F - AD-DOS - GET BLANKER STATUS
	AX = C006h
Return: AL = 00h if successful
	    BX = current state of screen blanker (0000h inactive, 0001h active)
Program: AD-DOS is the DOS version of the After Dark screen blanker for
	  MS Windows
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"AD-DOS",AX=C005h"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC006-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C006h
	???
Return: BX destroyed
	???
Note:	this function appears to be identical to AX=C007h
SeeAlso: AX=C000h"PCACHE",AX=C007h"PCACHE"
--------V-2FC007-----------------------------
INT 2F - AD-DOS - SET HOT KEY
	AX = C007h
	BX = hot key
	CL = hot key shift status
Return: AL = 00h if successful
SeeAlso: AX=C008h"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC007-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C007h
	???
Return: BX destroyed
	???
Note:	this function appears to be identical to AX=C006h
SeeAlso: AX=C000h"PCACHE",AX=C006h"PCACHE"
--------V-2FC008-----------------------------
INT 2F - AD-DOS - GET CURRENT HOT KEY
	AX = C008h
Return: AX = status
	    0000h successful
		BX = Hot Key
		CL = Hot Key Shift Status
	    0008h otherwise
SeeAlso: AX=C000h"AD-DOS",AX=C007h"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC008-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - CLEAR ??? FLAG
	AX = C008h
Return: BX destroyed
SeeAlso: AX=C000h"PCACHE",AX=C009h"PCACHE"
--------V-2FC009-----------------------------
INT 2F - AD-DOS - UNBLANK MONITOR
	AX = C009h
Return: AL = 00h if successful
Program: AD-DOS is the DOS version of the After Dark screen blanker for
	  MS Windows
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	this function works by simulating keyboard activity
Index:	screen saver;AD-DOS
--------c-2FC009-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? FLAG
	AX = C009h
Return: BX destroyed
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=C000h"PCACHE",AX=C008h"PCACHE"
--------V-2FC00A-----------------------------
INT 2F - AD-DOS - ???
	AX = C00Ah
Return: AX = status
	    0000h successful
		BH = ??
		BL = ??
	    000Ah failed
Index:	screen saver;AD-DOS
--------c-2FC00A-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C00Ah
	???
Return: AH = bit flags
	    bit 5: ???
	AL = bit flags
	    bit 4: ???
	    bit 3: ???
	BX destroyed
	???
SeeAlso: AX=C000h"PCACHE"
--------V-2FC00B-----------------------------
INT 2F - AD-DOS - ???
	AX = C00Bh
Return: AX = status
	    0000h successful
	    000Bh failed
Index:	screen saver;AD-DOS
--------c-2FC00B-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - NOP
	AX = C00Bh
Return: BX destroyed
SeeAlso: AX=C000h"PCACHE"
--------V-2FC00C-----------------------------
INT 2F - AD-DOS - SET ??? INTERNAL FLAG TO 01h
	AX = C00Ch
Return: AX = status
	    0000h successful
	    000Ch failed
Program: AD-DOS is the DOS version of the After Dark screen blanker for
	  MS Windows
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Index:	screen saver;AD-DOS
--------c-2FC00C-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ???
	AX = C00Ch
Return: AX = ??? (0000h)
	BX = ??? (0000h)
	CX = ??? (0100h)
	DL = ???
	DH = ???
SeeAlso: AX=C000h"PCACHE"
--------c-2FC00D-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ???
	AX = C00Dh
	DL = ???
Return: BX destroyed
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=C000h"PCACHE"
--------V-2FC00E-----------------------------
INT 2F - AD-DOS - SET PASSWORD STATUS
	AX = C00Eh
	BX = new state (0000h disabled, 0001h enabled)
Return: ???
SeeAlso: AX=C000h"AD-DOS",AX=C00Fh"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC00E-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - INSTALL ???
	AX = C00Eh
	ES:DX -> ???
Return: BX destroyed
Note:	ES:DX is stored internally if the variable is currently 0000h:0000h,
	  but ignored if already set; a counter is incremented
SeeAlso: AX=C000h"PCACHE",AX=C00Fh"PCACHE"
--------V-2FC00F-----------------------------
INT 2F - AD-DOS - GET PASSWORD STATUS
	AX = C00Fh
Return: BX = current state (0000h disabled, 0001h enabled)
SeeAlso: AX=C00Eh"AD-DOS"
Index:	screen saver;AD-DOS
--------c-2FC00F-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - REMOVE ???
	AX = C00Fh
Return: BX destroyed
Note:	this function decrements the counter used by AX=C00Eh, and clears the
	  internal pointer variable to 0000h:0000h when it reaches zero
SeeAlso: AX=C000h"PCACHE",AX=C00Eh"PCACHE"
--------c-2FC010-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ???
	AX = C010h
	CX = index of ??? table (00h-02h, others treated as 00h)
	SI = offset into data table
Return:	AL = byte at specified offset into table
	BX destroyed
SeeAlso: AX=C000h"PCACHE"
--------c-2FC011-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ???
	AX = C011h
Return: AX = ??? (0007h)
	BX = ??? (0001h)
	CH = ???
	CL = ???
SeeAlso: AX=C000h"PCACHE"
--------c-2FC012-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ???
	AX = C012h
Return: AX = ???
	BX = ???
	CX = ???
	DX = ???
SeeAlso: AX=C000h"PCACHE"
--------c-2FC013-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C013h
	???
Return: BX destroyed
	???
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=C000h"PCACHE"
--------c-2FC014-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C014h
	???
Return: BX destroyed
	???
SeeAlso: AX=C000h"PCACHE"
--------c-2FC015-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C015h
	???
Return: BX destroyed
	???
SeeAlso: AX=C000h"PCACHE"
--------c-2FC016-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - INCREMENT ???
	AX = C016h
Return: BX destroyed
SeeAlso: AX=C000h"PCACHE",AX=C017h"PCACHE"
--------c-2FC017-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - DECREMENT ???
	AX = C017h
Return: BX destroyed
SeeAlso: AX=C000h"PCACHE",AX=C016h"PCACH"
--------c-2FC018-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C018h
	???
Return: BX destroyed
	???
Note:	the first instruction of this function is an indirect jump which points
	  at a RET by default
SeeAlso: AX=C000h"PCACHE",AX=C019h"PCACHE"
--------c-2FC019-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C019h
	???
Return: BX destroyed
	???
Note:	the first instruction of this function is an indirect jump which points
	  at a RET by default
SeeAlso: AX=C000h"PCACHE",AX=C018h"PCACHE"
--------c-2FC01A-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - CLEAR ??? FLAG
	AX = C01Ah
Return: BX destroyed
SeeAlso: AX=C000h"PCACHE",AX=C01Bh"PCACHE"
--------c-2FC01B-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? FLAG
	AX = C01Bh
Return: BX destroyed
SeeAlso: AX=C000h"PCACHE",AX=C01Ah"PCACHE"
--------c-2FC01C-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - ???
	AX = C01Ch
	???
Return: AX = ???
	BX destroyed
SeeAlso: AX=C000h"PCACHE"
--------c-2FC01D-----------------------------
INT 2F U - PrintCache v3.1 PCACHE.EXE - NOP
	AX = C01Dh to C01Fh
Return: BX destroyed
Program: PCACHE is the resident print spooler portion of PrintCache by
	  LaserTools; it may use either memory or disk space to spool output
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=C000h"PCACHE"
--------V-2FC020-----------------------------
INT 2F - AD-DOS - GET AND RESET VxD API STATUS
	AX = C020h
Return: AL = 00h if successful
	    BX = VxD API Status
		0000h no error
		0001h error
		0100h neither Windows 3.X enhanced mode nor Windows/386 2.x
			  is running
		0200h VM API entry point not found (VxD not installed)
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
Note:	this call resets the VxD API Status to zero
SeeAlso: AX=1602h,AX=1607h
Index:	screen saver;AD-DOS
--------V-2FC04E-----------------------------
INT 2F - Explosiv v2.00+ - NON-TSR EXECUTING CHECK
	AX = C04Eh
Return: AL = 4Fh if Explosiv is running but not memory-resident
Program: Explosiv is a shareware animated screen blanker for DOS and Windows 3
	  by H&G Software (Reidar Gresseth and Chris Hook)
Range:	AH=C0h to AH=C9h, selected by configuration
SeeAlso: AX=C050h
Index:	screen saver;Explosiv
--------V-2FC050-----------------------------
INT 2F - Explosiv v2.00+ - INSTALLATION CHECK
	AX = C050h
Return: AL = 51h if installed
	---v3.0+ ---
		 BX = interval in clock ticks
	    CH = animation display color (00h mono, 01h tinge, 02h color)
	    CL = animation delay factor
	    DH = animation parameters
	    DL = INT 10 checking (00h on, 01h off)
	    SI = number of bytes available for animation code
	    DI = display type (00h VGA, 01h EGA, 02h CGA, 03h HGC, 04h MDA)
Program: Explosiv is a shareware animated screen blanker for DOS and Windows 3
	  by H&G Software (Reidar Gresseth and Chris Hook)
Range:	AH=C0h to AH=C9h, selected by configuration
SeeAlso: AH=93h,AX=C000h"AD-DOS",AX=C04Eh,AX=C052h,AX=C054h"v3"
SeeAlso: INT 14/AX=AA01h
Index:	screen saver;Explosiv
--------V-2FC052-----------------------------
INT 2F - Explosiv v2.00+ - UNINSTALL
	AX = C052h
	DX:BX = address to return to on successful uninstall
Return: at specified address if successful
	AL = 53h on error
Note:	specified return address must have the segment of the caller's PSP
SeeAlso: AX=C050h
Index:	screen saver;Explosiv
--------V-2FC054-----------------------------
INT 2F - Explosiv v2.x - GET ANIMATION DELAY FACTOR
	AX = C054h
Return: AL = delay factor
SeeAlso: AX=C057h
Index:	screen saver;Explosiv
----------2FC054-----------------------------
INT 2F - Explosiv v3.0+ - UPDATE PARAMETERS
	AX = C054h
	BX = new interval in clock ticks
	CH = animation display color (00h mono, 01h tinge, 02h color)
	CL = animation delay factor
	DH = animation parameters
	DL = INT 10 checking (00h on, 01h off)
SeeAlso: AX=C050h
--------V-2FC055-----------------------------
INT 2F - Explosiv v2.x - SET BLANKING INTERVAL
	AX = C055h
	BX = new interval in clock ticks
Index:	screen saver;Explosiv
--------V-2FC056-----------------------------
INT 2F - Explosiv v2.x - SET ANIMATION DISPLAY TYPE
	AX = C056h
	BL = animated display type (00h mono, 01h color)
SeeAlso: AX=C058h"v2.x"
Index:	screen saver;Explosiv
--------V-2FC056-----------------------------
INT 2F - Explosiv v3.0+ - ENABLE/DISABLE EXPLOSIV
	AX = C056h
	BX = new state
	    0000h disabled
	    0100h enabled
	    0101h enabled, but never blank
	    0102h enabled, always blank
--------V-2FC057-----------------------------
INT 2F - Explosiv v2.x - SET ANIMATION DELAY FACTOR
	AX = C057h
	BL = delay factor
SeeAlso: AX=C054h"v2.x"
Index:	screen saver;Explosiv
--------V-2FC058-----------------------------
INT 2F - Explosiv v2.x - SET ANIMATION PARAMETER
	AX = C058h
	BL = animation parameter
Note:	the animation parameter has different interpretations for each display
SeeAlso: AX=C056h"v2.x"
Index:	screen saver;Explosiv
----------2FC058-----------------------------
INT 2F - Explosiv v3.0+ - LOAD NEW ANIMATION DISPLAY CODE
	AX = C058h
	BX = file handle for file containing display code
	CX = number of bytes to load
	DX = offset at which animation code should be loaded
Return: AL = status (see #1717)
Note:	if AL=00h-03h on return, the file will be closed

(Table 1717)
Values for Explosiv function status:
 00h	successful
 01h	code too large to available space
 02h	no data read, load aborted
 03h	incomplete load, default blanking display loaded instead
 58h	unexpected offset in DX
--------V-2FC059-----------------------------
INT 2F - Explosiv v2.x - DISABLE EXPLOSIV
	AX = C059h
Note:	clears flag set by AX=C05Ah
SeeAlso: AX=C05Ah
Index:	screen saver;Explosiv
--------V-2FC05A-----------------------------
INT 2F u - Explosiv v2.x - ENABLE EXPLOSIV
	AX = C05Ah
	BL = ???
Note:	sets flag cleared by AX=C059h then stores BL
SeeAlso: AX=C059h,AX=C05Bh
Index:	screen saver;Explosiv
--------V-2FC05B-----------------------------
INT 2F - Explosiv v2.x - CHANGE ANIMATION DISPLAY
	AX = C05Bh
	BL = animation display
Note:	this function fails silently if the requested display is not in memory
SeeAlso: AX=C05Ah,AX=C05Ch
Index:	screen saver;Explosiv
--------V-2FC05C-----------------------------
INT 2F - Explosiv v2.x - SET INT 10 CHECKING
	AX = C05Ch
	BL = new state of INT 10 checking (00h enabled, 01h disabled)
SeeAlso: AX=C05Bh
Index:	screen saver;Explosiv
--------K-2FC0AE-----------------------------
INT 2F U - HP 100LX/200LX - PUSHKEYS - INSTALLATION CHECK
	AX = C0AEh
Return: AX = 4453h if installed
	CX = 5259h if installed
Range:	AH=C0h to AH=FFh, selected by scanning for signature
SeeAlso: AX=C000h"HP 100LX",AX=C001h"HP 100LX",AX=C0AFh"HP 100LX"
--------K-2FC0AF-----------------------------
INT 2F U - HP 100LX/200LX - PUSHKEYS - INTERNAL - GET BUFFER ADDRESS
	AX = C0AFh
Return: ES:DI -> buffer (behind code)
Range:	AH=C0h to AH=FFh, selected by scanning for signature with AL=AEh
SeeAlso: AX=C000h"HP 100LX",AX=C001h"HP 100LX",AX=C0AEh"HP 100LX"
--------N-2FC100-----------------------------
INT 2F U - Personal NetWare - STPIPX v1.00 - INSTALLATION CHECK
	AX = C100h
Return: AL = FFh if installed
	    ES:SI -> signature string "STP-IPX$"
	    BX = version??? (0001h for v1.00)
	    DI corrupted
Note:	AH=C1h is the default value; STPIPX probably scans a range of
	  multiplex numbers to find a free one, as LSL does
SeeAlso: AX=C000h"LSL",AX=C101h
----------2FC101-----------------------------
INT 2F U - Personal NetWare - STPIPX v1.00 - UNINSTALL
	AX = C101h
Return: AL = status???
	BX corrupted
SeeAlso: AX=C101h
--------d-2FC300-----------------------------
INT 2F - SETWPR.COM - INSTALLATION CHECK
	AX = C300h
Return: AL = FFh if installed
Program: SETWPR is a hard-disk write-protection TSR by Jaroslaw Rafa
SeeAlso: AX=C302h"SETWPR"
--------k-2FC300DX0000-----------------------
INT 2F U - SpaceManager - INSTALLATION CHECK
	AX = C300h
	DX = 0000h
Return: AL = FFh if any SpaceManager programs installed
	    BX = 6F73h
	    CX = 6F68h
Program: SpaceManager is an enhancement for MS-DOS DoubleSpace by Vertisoft
	  Systems, Inc.
Range:	AH=C3h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C300h/DX=0666h
--------k-2FC300-----------------------------
INT 2F U - SpaceManager - INSTALLATION VERIFICATION
	AX = C300h
	DX = program identifier (see #1718) or 0666h for any SpaceManager prog
	BX = 4F53h ('OS')
	CX = 4F48h ('OH')
Return: AL = FFh if BX/CX as specified and specified program installed
	    BX = 6F73h ('os')
	    CX = 6F68h ('oh')
Range:	AH=C3h to AH=FFh, selected by scanning for first free multiplex number
Note:	this call is chained if BX,CX, or DX are not as specified above
SeeAlso: AX=C300h/DX=0000h

(Table 1718)
Values for SpaceManager program identifier:
 9000h	SMOUNT (SuperMount)
 9001h	SELECTC (SelectCompress)
 9002h	SUPERX (SuperExchange)
 9003h	FORTUNE (FortuneTeller)
--------k-2FC301-----------------------------
INT 2F U - SpaceManager - ???
	AX = C301h
	DX = program identifier (9000h,9001h,9003h) (see #1718)
	???
Return: ???
--------k-2FC302-----------------------------
INT 2F U - SpaceManager - ENABLE PROGRAM
	AX = C302h
	DX = program identifier (9000h,9001h,9003h) (see #1718)
Return: AX destroyed
SeeAlso: AX=C303h,AX=C306h
--------d-2FC302-----------------------------
INT 2F - SETWPR.COM - SET WRITE-PROTECTION STATE
	AX = C302h
	BL = new state
	    00h disk may be written
	    01h disk write-protected
Return: AL = FFh if installed
Program: SETWPR is a hard-disk write-protection TSR by Jaroslaw Rafa
SeeAlso: AX=C300h"SETWPR"
--------k-2FC303-----------------------------
INT 2F U - SpaceManager - DISABLE PROGRAM
	AX = C303h
	DX = program identifier (9000h,9001h,9003h) (see #1718)
Return: AX destroyed
SeeAlso: AX=C302h,AX=C306h
--------k-2FC304-----------------------------
INT 2F U - SpaceManager - GET PER-DRIVE ENABLEMENT TABLE
	AX = C304h
	DX = program identifier (9000h,9001h,9003h) (see #1718)
Return: ES:BX -> 26-byte drive table (00h disabled for drive, 01h enabled)
	AX destroyed
--------k-2FC305DX9003-----------------------
INT 2F U - SpaceManager - FORTUNE.EXE - NOP
	AX = C305h
	DX = 9003h
Return: AX destroyed
--------k-2FC305-----------------------------
INT 2F U - SpaceManager - ???
	AX = C305h
	DX = program identifier (9000h,9001h) (see #1718)
	???
Return: ???
--------k-2FC306-----------------------------
INT 2F U - SpaceManager - CHECK WHETHER PROGRAM ENABLED
	AX = C306h
	DX = program identifier (9000h,9001h,9003h) (see #1718)
Return: AL = current state (00h disabled, FAh enabled)
	AH destroyed
SeeAlso: AX=C302h,AX=C303h
--------k-2FC307DX9001-----------------------
INT 2F U - SpaceManager - SELECTC - ???
	AX = C307h
	DX = 9001h
	BX = ???
	CX = ???
	???
Return: ???
--------k-2FC308DX9001-----------------------
INT 2F U - SpaceManager - SELECTC - ???
	AX = C308h
	DX = 9001h
	???
Return: ???
--------d-2FC64CBX5553-----------------------
INT 2F U - Smart Prompt - INSTALLATION CHECK
	AX = C64Ch
	BX = 5553h
Return: AX = 4CC6h if installed
	BX = 5355h if installed
Program: Smart Prompt (SMARTPMT) is a freeware TSR by Steve Gibson which forces
	  an immediate flush of SmartDrive's (and compatible caches') buffers
	  on returning to the DOS prompt
--------V-2FC700CX434C-----------------------
INT 2F u - COLAP - INSTALLATION CHECK
	AX = C700h
	CX = 434Ch  "CL"
Return: AL = FFh if installed
Program: colap.com is a freeware TSR by Eric Meyer which controls contrast
	  and brightness of color laptops by changing the VGA palette colors;
	  for Toshiba laptops there are more hotkeys for shutting off display
	  and harddisk.
--------v-2FC900BP0000-----------------------
INT 2F U - ThunderByte??? - INSTALLATION CHECK
	AX = C900h
	BP = 0000h
Return: AL = FFh if installed
	    BP >= 0014h
Note:	called by TBSCANX
SeeAlso: AX=C987h,AX=CA00h
--------v-2FC987-----------------------------
INT 2F U - ThunderByte??? - DISINFECT FILE???
	AX = C987h
	BX:DX -> filename
	BX:CX -> virus name
Return: AX = status
	    0000h successful???
Note:	called by TBSCANX
SeeAlso: AX=CA00h
--------r-2FC9FF-----------------------------
INT 2F C - StackMan - INSTALLATION BROADCAST
	AX = C9FFh
	BL = BCD version number
	CX = number of stacks
	DX = stack size in bytes
Program: StackMan is a freeware stack manager by Franz Veldman of ESaSS B.V.
	  which functions as a replacement for the DOS STACK= command as well
	  as permitting multiple TSRs to share a pool of stack space
Notes:	called by StackMan when it goes resident to inform interested TSRs that
	  its API is available
	the installation check consists of testing for the string "STACKXXX" at
	  offset 0Ah from the INT B4 handler
SeeAlso: INT B4"StackMan",INT B5"StackMan"
Index:	installation check;STACKMAN|broadcasts;STACKMAN installation
--------F-2FCA-------------------------------
INT 2F - FAXPLUS - FAX TSR
	AH = CAh
	???
Return: ???
Program: FAXTSR is a resident FAX send/receive module for FAXPLUS by Frans
	  Veldman
SeeAlso: AH=2Ah"Gammafax"
--------v-2FCA00BX5442-----------------------
INT 2F - TBSCANX - INSTALLATION CHECK
	AX = CA00h
	BX = 5442h ('TB')
Return: AL = state
	    00h not installed
	    FFh installed
		BX = 7462h ('tb') if BX was 5442h on entry
Program: TBSCANX is a resident virus scanning module by Frans Veldman.
Note:	programs may perform virus checks on themselves, other program files,
	  or their data files by invoking the TBSCANX API.
SeeAlso: AX=4653h,AX=C900h
--------v-2FCA01-----------------------------
INT 2F - TBSCANX - GET STATUS
	AX = CA01h
Return: AH = BCD version number (v2.2+)
	    CAh for versions before 2.2
	AL = state (00h = disabled, 01h = enabled)
	CX = number of signatures which will be searched
---v2.0---
	BX = EMS handle, 0000h if not using EMS
---v2.3+---
	BX = segment of swap area, 0000h if not swapped
	DX = EMS or XMS handle (XMS handle if BX=0000h), FFFFh if not using EMS
SeeAlso: AX=CA02h
--------v-2FCA02-----------------------------
INT 2F - TBSCANX - SET STATE
	AX = CA02h
	BL = new state (00h = disabled, 01h = enabled)
SeeAlso: AX=CA01h
--------v-2FCA03-----------------------------
INT 2F - TBSCANX - SCAN BUFFER
	AX = CA03h
	CX = size of buffer
	DS:DX -> buffer containing data to scan
Return: CF clear if no virus signatures found
	    BX,ES destroyed
	CF set if signature found
	    ES:BX -> ASCIZ virus name (v2.3+)
	    DS:DX -> ASCIZ virus name (v2.0)
	AX,CX,DX destroyed (v2.3+)
	all other registers except CS:IP and SS:SP destroyed (v2.0)
SeeAlso: AX=CA04h
--------v-2FCA04-----------------------------
INT 2F - TBSCANX - SCAN FILE
	AX = CA04h
	DS:DX -> filename
Return: CF clear if no virus signatures found
	    BX,ES destroyed
	CF set if signature found
	    ES:BX -> ASCIZ virus name
	AX,CX,DX destroyed
Note:	this function requires at least 4K free memory
SeeAlso: AX=CA03h
--------U-2FCAFEBX0000-----------------------
INT 2F U - THELP v3.0 - INSTALLATION CHECK
	AX = CAFEh
	BX = 0000h
Return: BX = segment of resident code if installed
	    0000h if not installed
SeeAlso: AX=5453h,INT 2D"AMIS"
--------F-2FCB00-----------------------------
INT 2F - Communicating Applications Specification - INSTALLATION CHECK
	AX = CB00h
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
Note:	AH = CBh is the default identifier, but may be reconfigured
SeeAlso: AH=2Ah,AX=8000h"FaxBIOS",AX=CB0Eh,AX=CBDCh
--------F-2FCB00BX4D53-----------------------
INT 2F - MTEZ XpressFax CASMGR - INSTALLATION CHECK
	AX = CB00h
	BX = 4D53h ('MS')
	CX = 4949h ('II')
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
		BX = 6D73h ('ms')
		CX = 6969h ('ii')
Note:	this function is equivalent to the standard CASMGR installation check,
	  but uses the additional magic values to identify which CAS is
	  installed
SeeAlso: AH=2Ah,AX=8000h"FaxBIOS",AX=C000h/BX=444Bh,AX=CB0Eh,AX=CB16h
--------F-2FCB01-----------------------------
INT 2F - Communicating Applications Specification - SUBMIT A TASK
	AX = CB01h
	DS:DX -> ASCIZ name of task control file
Return: AX >= 0: event handle
	AX < 0:="" two's="" complement="" of="" error="" code="" (see="" #1719)="" note:="" files="" needed="" for="" an="" event="" must="" be="" kept="" until="" task="" is="" complete="" or="" error="" seealso:="" ax="CB0Bh,AX=CB15h" (table="" 1719)="" values="" for="" cas="" error="" code:="" (ah="class," al="subcode," value="" passed="" back="" is="" 2's="" complement)="" class="" 00h="" ---="" fax="" warnings="" subcode="" 00h="" no="" error="" 02h="" bad="" scanline="" count="" 03h="" page="" sent="" with="" errors,="" could="" not="" retransmit="" 04h="" received="" data="" lost="" 05h="" invalid="" or="" missing="" logo="" file="" 06h="" filename="" does="" not="" match="" nonstandard="" format="" (nsf)="" header="" 07h="" file="" size="" does="" not="" match="" nsf="" header="" class="" 01h="" ---="" dos="" warnings="" (data="" was="" sent)="" subcode="" 01h="" invalid="" function="" 05h="" access="" denied="" 06h="" invalid="" handle="" others="" see="" int="" 21/ah="59h" class="" 02h="" ---="" fatal="" errors="" (data="" not="" sent)="" subcode="" 00h="" multiplex="" handler="" failed="" 01h="" unknown="" command="" 02h="" bad="" event="" handle="" 03h="" find="" next="" attempted="" before="" find="" first="" 04h="" no="" more="" events="" 07h="" invalid="" queue="" type="" 08h="" bad="" control="" file="" 09h="" communication="" board="" busy="" 0ah="" invalid="" command="" parameter="" 0bh="" can't="" uninstall="" resident="" code="" 0ch="" file="" exists="" 80h="" unknown="" task="" type="" 81h="" bad="" phone="" number="" 82h="" bad="" .pcx="" file="" header="" 83h="" unexpected="" eof="" 84h="" unexpected="" disconnect="" 85h="" too="" many="" dialing="" retries="" 86h="" no="" file="" specified="" for="" send="" 87h="" communication="" board="" timeout="" 88h="" received="" too="" many="" pages="" (="">1023) of data
		89h	manual connect initiated too long ago
		8Ah	hardware command set error
		8Bh	bad NonStandard Format (NSF) header file
  Class 03h	--- fatal DOS errors
	Subcode 02h	file not found
		03h	path not found
		others	see INT 21/AH=59h
  Class 04h	--- FAX errors
	Subcode 01h	remote unit not Group 3 compatible
		02h	remote unit did not send capabilities
		03h	other FAX machine incompatible
		04h	other FAX incapable of file transfers
		05h	exceeded retrain or FAX resend limit
		06h	line noise or failure to agree on bit rate
		07h	remote disconnected after receiving data
		08h	no response from remote after sending data
		09h	remote's capabilities incompatible
		0Ah	no dial tone (v1.2+)
		0Bh	invalid response from remote unit after sending data
		0Dh	phone line dead or remote unit disconnected
		0Eh	timeout while waiting for secondary dial tone (v1.2+)
		11h	invalid command from remote after receiving data
		15h	tried to receive from incompatible hardware
		5Ch	received data overflowed input buffer
		5Dh	remote unexpectedly stopped sending data
		5Eh	other FAX machine jammed (no data sent)
		5Fh	remote took too long to send fax scan line
		63h	can't get through to remote unit
		64h	user canceled event
  Class 05h	--- application-specific (v1.2+)
  ---Intel FAXPOP.EXE
	Subcode 00h	tried to send while in graphics mode
		01h	insufficient disk space
		02h	internal buffer overflow
  Class 06h	--- CAS implementation-specific (v1.2+)
--------F-2FCB02-----------------------------
INT 2F - Communicating Applications Specification - ABORT CURRENT EVENT
	AX = CB02h
Return: AX >= 0: event handle of aborted event
	AX < 0:="" error="" code="" (see="" #1719)="" note:="" termination="" could="" take="" up="" to="" 30="" seconds="" seealso:="" ax="CB08h,AX=CB10h" --------f-2fcb05-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" find="" first="" queue="" entry="" ax="CB05h" cx="status" of="" events="" to="" find="" 0000h="" successful="" completion="" 0001h="" waiting="" to="" be="" processed="" 0002h="" number="" has="" been="" dialed="" 0003h="" connection="" established,="" sending="" 0004h="" connection="" established,="" receiving="" 0005h="" event="" aborted="" ffffh="" find="" any="" event,="" regardless="" of="" status="" other="" negative="" values,="" match="" error="" code="" dh="direction" 00h="" chronological="" order,="" earliest="" to="" latest="" 01h="" reverse="" chronological="" order,="" latest="" to="" earliest="" dl="queue" to="" search="" 00h="" task="" queue="" 01h="" receive="" queue="" 02h="" log="" queue="" return:="" ax="0000h" successful="" bx="event" handle="" for="" found="" event="" ax="">< 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB06h,AX=CB07h" --------f-2fcb06-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" find="" next="" queue="" entry="" ax="CB06h" dl="queue" to="" search="" 00h="" task="" queue="" 01h="" receive="" queue="" 02h="" log="" queue="" return:="" ax="0000h" successful="" bx="event" handle="" for="" found="" event="" ax="">< 0="" error="" code="" (see="" #1719)="" note:="" direction="" of="" search="" is="" same="" as="" preceding="" find="" first="" call="" seealso:="" ax="CB05h" --------f-2fcb07-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" open="" file="" ax="CB07h" bx="event" handle="" from="" find="" (al="05h,06h)" or="" submit="" task="" (al="01h)" cx="receive" file="" number="" (ignored="" for="" task="" queue="" and="" log="" queue)="" 0000h="" open="" receive="" control="" file="" n="" open="" nth="" received="" data="" file="" dl="queue" 00h="" task="" queue="" 01h="" receive="" queue="" control="" file="" or="" received="" file,="" as="" given="" by="" cx="" 02h="" log="" queue="" 03h="" group="" file="" in="" task="" queue="" (v1.2+)="" 04h="" group="" file="" in="" log="" queue="" (v1.2+)="" return:="" ax="0000h" successful="" bx="DOS" file="" handle="" for="" requested="" file="" ax="">< 0="" error="" code="" (see="" #1719)="" note:="" the="" returned="" file="" handle="" has="" been="" opened="" in="" read-only="" mode="" and="" should="" be="" closed="" with="" int="" 21/ah="3Eh" after="" use="" seealso:="" ax="CB01h,AX=CB05h,AX=CB14h" --------f-2fcb08-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" delete="" file="" ax="CB08h" bx="event" handle="" cx="receive" file="" number="" 0000h="" delete="" all="" received="" files="" and="" receive="" control="" file="" n="" delete="" nth="" received="" file="" dl="queue" 00h="" delete="" control="" file="" in="" task="" queue="" and="" corresponding="" group="" file="" if="" it="" exists="" 01h="" delete="" file="" in="" receive="" queue,="" as="" given="" by="" cx="" 02h="" delete="" control="" file="" in="" log="" queue="" (individual="" deletions="" not="" recommended,="" to="" maintain="" integrity="" of="" log)="" and="" corresponding="" group="" file="" if="" it="" exists="" return:="" ax="0000h" successful="" ax="">< 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB02h,AX=CB09h" --------f-2fcb09-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" delete="" all="" files="" in="" q="" ax="CB09h" dl="queue" 00h="" delete="" all="" control="" files="" in="" task="" queue,="" including="" all="" group="" files="" 01h="" delete="" all="" files="" in="" receive="" queue="" 02h="" delete="" all="" control="" files="" in="" log="" queue,="" including="" all="" group="" files="" return:="" ax="0000h" successful="" ax="">< 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB08h" --------f-2fcb0a-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" event="" date="" ax="CB0Ah" bx="event" handle="" dl="queue" 00h="" task="" queue="" 01h="" receive="" queue="" 02h="" log="" queue="" return:="" ax="0000h" successful="" cx="year" dh="month" dl="day" ax="">< 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB0Bh,AX=CB0Ch" --------f-2fcb0b-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" set="" task="" date="" ax="CB0Bh" bx="event" handle="" (task="" event="" only)="" cx="year" dh="month" dl="day" return:="" ax="0000h" successful="" ax="">< 0="" error="" code="" (see="" #1719)="" note:="" setting="" a="" task's="" date="" and="" time="" to="" before="" the="" current="" date="" and="" time="" causes="" it="" to="" execute="" immediately="" seealso:="" ax="CB01h,AX=CB0Ah,AX=CB0Dh" --------f-2fcb0c-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" event="" time="" ax="CB0Ch" bx="event" handle="" dl="queue" 00h="" task="" queue="" 01h="" receive="" queue="" 02h="" log="" queue="" return:="" ax="0000h" successful="" ch="hour" cl="minute" dh="second" dl="00h" ax="">< 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB0Ah,AX=CB0Dh" --------f-2fcb0d-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" set="" task="" time="" ax="CB0Dh" bx="event" handle="" (task="" events="" only)="" ch="hour" cl="minute" dh="second" dl="" unused="" return:="" ax="0000h" successful="" ax="">< 0="" error="" code="" (see="" #1719)="" note:="" setting="" a="" task's="" date="" and="" time="" to="" before="" the="" current="" date="" and="" time="" causes="" it="" to="" execute="" immediately="" seealso:="" ax="CB0Bh,AX=CB0Ch,AX=CB10h" --------f-2fcb0e-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" external="" data="" block="" ax="CB0Eh" ds:dx="" -=""> 256-byte buffer for external data block (see #1720)
Return: AX = 0000h successful
	    DS:DX buffer filled
	AX < 0="" error="" code="" (see="" #1719)="" format="" of="" cas="" external="" data="" block:="" offset="" size="" description="" (table="" 1720)="" 00h="" byte="" cas="" major="" version="" 01h="" byte="" cas="" minor="" version="" 02h="" 68="" bytes="" asciz="" path="" to="" directory="" containing="" cas="" software,="" ends="" in="" slash="" 46h="" 13="" bytes="" asciz="" name="" of="" current="" phonebook="" (in="" cas="" directory)="" 53h="" 13="" bytes="" asciz="" name="" of="" current="" logo="" file="" (in="" cas="" directory)="" 60h="" 32="" bytes="" asciz="" default="" sender="" name="" 80h="" 21="" bytes="" asciz="" ccitt="" identification="" of="" fax="" device="" 95h="" 107="" bytes="" reserved="" --------f-2fcb0f-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get/set="" autoreceive="" ax="CB0Fh" dl="subfunction" 00h="" get="" current="" autoreceive="" state="" 01h="" set="" autoreceive="" state="" dh="number" of="" rings="" before="" answer,="" 00h="never" return:="" ax="0000h" autoreceive="" disabled="" ax="N" number="" of="" rings="" before="" answer="" ax="">< 0="" error="" code="" (see="" #1719)="" --------f-2fcb10-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" current="" event="" status="" ax="CB10h" ds:dx="" -=""> 512-byte buffer for status area (see #1722)
Return: AX = 0000h successful
		BX = event handle of current event or negative error code if
		      no current event
		buffer filled
	AX < 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB02h,AX=CB0Dh" (table="" 1721)="" values="" for="" cas="" event="" type:="" 00h="" send="" 01h="" receive="" 02h="" polled="" send="" 03h="" polled="" receive="" 04h="" to="" 7fh="" reserved="" ffh="" serious="" hardware="" error="" format="" of="" cas="" status="" area:="" offset="" size="" description="" (table="" 1722)="" 00h="" byte="" event="" type="" (see="" #1721)="" 01h="" byte="" transfer="" type="" 00h="" 200x200="" dpi,="" fax="" mode="" 01h="" 100x200="" dpi,="" fax="" mode="" 02h="" file="" transfer="" mode="" 03h="" to="" 7fh="" reserved="" 02h="" word="" event="" status="" (see="" #1723)="" 04h="" word="" event="" time="" (packed="" dos="" time="" format,="" see="" int="" 21/ax="5700h)" 06h="" word="" event="" date="" (packed="" dos="" date="" format,="" see="" int="" 21/ax="5700h)" 08h="" word="" number="" of="" files="" to="" transfer,="" max="" 7fffh="" 0ah="" word="" offset="" of="" file="" transfer="" record="" 0ch="" 47="" bytes="" asciz="" phone="" number="" to="" call="" 3bh="" 64="" bytes="" asciz="" application-specific="" tag="" string="" 7bh="" byte="" reserved="" (00h)="" 7ch="" byte="" connect="" time,="" seconds="" 7dh="" byte="" connect="" time,="" minutes="" 7eh="" byte="" connect="" time,="" hours="" 7fh="" dword="" total="" number="" of="" pages="" in="" all="" files="" 83h="" dword="" pages="" already="" transmitted="" 87h="" word="" number="" of="" files="" already="" transmitted="" 89h="" byte="" cover="" page="" flag="" 00h="" don't="" transmit="" cover="" page="" 01h="" transmit="" cover="" page="" 02h="" to="" 7fh="" reserved="" 8ah="" word="" total="" number="" of="" transmission="" errors="" 8ch="" 78="" bytes="" reserved="" (zeros)="" dah="" 21="" bytes="" asciz="" remote="" fax's="" ccitt="" identification="" efh="" 32="" bytes="" asciz="" destination="" name="" 10fh="" 32="" bytes="" asciz="" sender="" name="" 12fh="" 80="" bytes="" filename="" of="" pcx="" logo="" file="" (max="" 1780x800="" pixels)="" 17fh="" 128="" bytes="" file="" transfer="" record="" for="" current="" event="" (see="" #1724)="" (table="" 1723)="" values="" for="" cas="" event="" status:="" 0000h="" completed="" successfully="" 0001h="" waiting="" 0002h="" number="" dialed="" 0003h="" connected,="" sending="" 0004h="" connected,="" receiving="" 0005h="" aborted="" 0006h="" to="" 007fh="" reserved="" 0080h="" to="" 7fffh="" application-specific="" events="" 8000h="" to="" ffffh="" error="" codes="" format="" of="" cas="" file="" transfer="" record:="" offset="" size="" description="" (table="" 1724)="" 00h="" byte="" file="" type="" (ignored="" unless="" fax)="" 00h="" ascii="" 01h="" pcx="" 02h="" dcx="" 03h="" to="" 7fh="" reserved="" 01h="" byte="" text="" size="" for="" ascii="" fax="" file="" 00h="80" columns="" by="" 66="" lines="" (11="" inches)="" 01h="132" columns="" by="" 88="" lines="" (11="" inches)="" 02h="" to="" 7fh="" reserved="" 02h="" byte="" status="" of="" file="" 00h="" untouched="" 01h="" opened="" 02h="" moved="" 03h="" deleted="" 04h="" not="" yet="" received="" 05h="" to="" 7fh="" reserved="" 03h="" dword="" bytes="" already="" transmitted="" 07h="" dword="" file="" size="" in="" bytes="" 0bh="" word="" pages="" alread="" transmitted="" 0dh="" word="" number="" of="" pages="" in="" file="" 0fh="" 80="" bytes="" asciz="" filename="" 5fh="" byte="" 1/8="" inch="" page="" length="" if="" page="" length="" below="" set="" to="" 01h="" through="" 7fh,="" this="" value="" specifies="" additional="" 1/8="" inch="" increments="" to="" page="" length="" 60h="" byte="" page="" length="" 00h="11" inches="" 01h="" to="" 7fh="page" length="" is="" this="" number="" of="" inches="" plus="" value="" of="" 1/8="" inch="" field="" above="" 80h="" to="" feh="" reserved="" ffh="ASCII" pages="" ending="" with="" formfeed="" 61h="" 31="" bytes="" reserved="" (zeros)="" --------f-2fcb11-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" queue="" status="" ax="CB11h" dl="queue" to="" get="" status="" of="" 00h="" task="" queue="" 01h="" receive="" queue="" 02h="" log="" queue="" 03h="" send="" events="" (v1.2+)="" 04h="" receive="" events="" (v1.2+)="" return:="" ax="">= 0	 total number of changes made to queue, modulo 32768
	    BX = number of control files currently in queue
	    CX = number of received files (zero for task and log queues)
	AX < 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB12h" --------f-2fcb11dl03-------------------------="" int="" 2f="" -="" communicating="" applications="" spec="" v1.2+="" -="" get="" number="" of="" send="" events="" ax="CB11h" dl="03h" return:="" ax="number" of="" successful="" sends="" since="" resident="" manager="" started="" bx="number" of="" unsuccessful="" sends,="" including="" warnings="" seealso:="" ax="CB11h/DL=04h" --------f-2fcb11dl04-------------------------="" int="" 2f="" -="" communicating="" applications="" spec="" v1.2+="" -="" get="" number="" of="" receive="" events="" ax="CB11h" dl="04h" return:="" ax="number" of="" received="" file="" events="" since="" resident="" manager="" started="" bx="number" of="" received="" fax="" events="" seealso:="" ax="CB11h/DL=03h" --------f-2fcb12-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" hardware="" status="" ax="CB12h" ds:dx="" -=""> 128-byte status buffer (see #1725,#1727)
Return: AX = 0000h successful
	    DS:DX buffer filled with hardware-dependent status information
	   < 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB10h,AX=CB11h" format="" of="" status="" buffer="" for="" intel="" connection="" coprocessor:="" offset="" size="" description="" (table="" 1725)="" 00h="" byte="" connection="" coprocessor="" connection="" status="" flags="" (see="" #1728)="" 01h="" byte="" number="" of="" kilobytes="" of="" free="" buffer="" space="" 02h="" byte="" page="" buffer="" status="" bit="" 7:="" connection="" coprocessor="" has="" documents="" to="" send="" bits="" 6-0:="" number="" of="" pages="" in="" buffer="" 03h="" byte="" number="" of="" retries="" left="" for="" dialing="" number="" 04h="" byte="" page="" number="" to="" retransmit="" 05h="" byte="" communications="" status="" (see="" #1729)="" 06h="" byte="" baud="" rate="" (see="" #1726)="" 07h="" 3="" bytes="" reserved="" 0ah="" byte="" connection="" coprocessor="" hardware="" status="" (see="" #1730)="" 0bh="" byte="" connection="" coprocessor="" switch="" states="" (see="" #1731)="" 0ch="" byte="" communications="" flags="" (see="" #1732)="" 0dh="" byte="" reserved="" 0eh="" word="" error="" count="" (only="" valid="" while="" busy,="" reset="" when="" idle)="" 10h="" dword="" size="" of="" nonstandard="" format="" (nsf)="" file="" in="" bytes="" 14h="" byte="" 'a'="" if="" connection="" coprocessor="" board="" present="" 15h="" 9="" bytes="" reserved="" 1eh="" 21="" bytes="" asciz="" ccitt="" identification="" 33h="" 77="" bytes="" reserved="" note:="" the="" intel="" connection="" coprocessor="" and="" satisfaxtion="" may="" be="" distinguished="" by="" examining="" the="" byte="" at="" offset="" 14h="" bitfields="" for="" connection="" coprocessor="" baud="" rate:="" bit(s)="" description="" (table="" 1726)="" 7="" reserved="" 6-4="" baud="" rate="" 000="300" baud="" (v.21="" sdlc="" or="" hdlc="" mode)="" 100="2400" baud="" (v.27="" ter)="" 101="4800" baud="" (v.27="" ter)="" 110="7200" baud="" (v.29)="" 111="9600" baud="" (v.29)="" 3-0="" reserved,="" should="" be="" 0110="" format="" of="" status="" buffer="" for="" intel="" satisfaxtion="" board:="" offset="" size="" description="" (table="" 1727)="" 00h="" byte="" satisfaxtion="" connection="" status="" flags="" (see="" #1733)="" 01h="" byte="" satisfaxtion="" board="" state="" (see="" #1734)="" 02h="" byte="" number="" of="" kb="" free="" in="" buffer="" 03h="" byte="" number="" of="" pages="" or="" files="" in="" buffer="" 04h="" byte="" number="" of="" redials="" remaining="" on="" current="" number="" 05h="" byte="" fax="" page="" number="" to="" retransmit="" 06h="" byte="" current="" page/file="" in="" block="" transfer="" 07h="" byte="" number="" of="" rings="" received="" (only="" if="" auto-answer="" enabled)="" 08h="" word="" error="" count="" 0ah="" dword="" length="" of="" file="" being="" transferred="" 0eh="" 6="" bytes="" reserved="" 14h="" byte="" 'b'="" if="" satisfaxtion="" board="" present="" 15h="" 13="" bytes="" asciz="" transfer="" agent="" name="" 22h="" 5="" bytes="" asciz="" transfer="" agent="" version="" number="" 27h="" 13="" bytes="" asciz="" resident="" loader="" name="" 34h="" 5="" bytes="" asciz="" resident="" loader="" version="" number="" 39h="" 21="" bytes="" asciz="" remote="" csid="" 4eh="" 13="" bytes="" asciz="" resident="" manager="" name="" 5bh="" 5="" bytes="" asciz="" resident="" manager="" version="" number="" 60h="" 32="" bytes="" reserved="" note:="" the="" intel="" connection="" coprocessor="" and="" satisfaxtion="" may="" be="" distinguished="" by="" examining="" the="" byte="" at="" offset="" 14h="" bitfields="" for="" connection="" coprocessor="" connection="" status="" flags:="" bit(s)="" description="" (table="" 1728)="" 7="" hardware="" busy="" sending="" or="" receiving="" 6="" last="" page="" of="" data="" 5="" no="" data="" on="" current="" page="" 4="" retransmit="" request="" for="" current="" page="" being="" transmitted="" 3="" nsf="" (nonstandard="" file)="" mode="" active="" 2-0="" reserved="" bitfields="" for="" communications="" status:="" bit(s)="" description="" (table="" 1729)="" 7="" originating="" call="" 6="" fax="" message="" to="" be="" sent="" 5="" on="" line="" 4="" ring="" detected="" and="" receive="" enabled="" 3="" buffer="" dumped="" on="" receive="" 2-0="" hardware="" sequence="" state="" 000="" idle="" 001="" dial="" 010="" answer="" 011="" transmit="" 100="" receive="" 101="" pre-message="" 110="" post-message="" 111="" disconnect="" bitfields="" for="" connection="" coprocessor="" hardware="" status:="" bit(s)="" description="" (table="" 1730)="" 7="" modem="" option="" installed="" 6="" connection="" coprocessor="" has="" control="" of="" daa="" (not="" latched)="" 5="" on="" line="" (not="" latched)="" 4="" ring="" detected="" (not="" latched)="" 3="" data="" in="" command="" buffer="" (not="" latched)="" 2="" set="" if="" using="" dma="" channel="" 1,="" clear="" if="" using="" dma="" channel="" 3="" 1="" line="" length="" compensation="" 1="" set="" (not="" latched)="" 0="" line="" length="" compensation="" 0="" set="" (not="" latched)="" bitfields="" for="" connection="" coprocessor="" switch="" states:="" bit(s)="" description="" (table="" 1731)="" 7="" reserved="" 6="" unused="" 5="" spare="" switch="" open="" 4="" fax="" adr1="" switch="" open="" 3="" fax="" adr0="" switch="" open="" 2="" alternate="" interrupt="" switch="" open="" 1="" com="" sel="" 1="" switch="" open="" 0="" com="" sel="" 0="" switch="" open="" note:="" valid="" combinations="" of="" 0-2="" are="" 000="" com2="" irq3="" iobase="" 2f8h="" 001="" com1="" irq4="" iobase="" 3f8h="" 010="" com4="" irq3="" iobase="" 2e8h="" 011="" com3="" irq4="" iobase="" 3e8h="" 110="" com4="" irq2="" iobase="" 2e8h="" 111="" com3="" irq5="" iobase="" 3e8h="" bitfields="" for="" communications="" flags:="" bit(s)="" description="" (table="" 1732)="" 7="" reserved="" 6="" auxiliary="" relay="" forced="" on="" 5="" modem="" select="" relay="" forced="" on="" 4="" offhook="" relay="" forced="" on="" 3="" 9600="" bps="" enabled="" 2="" 7200="" bps="" enabled="" 1="" 4800="" bps="" enabled="" 0="" 2400="" bps="" enabled="" bitfields="" for="" satisfaxtion="" connection="" status="" flags:="" bit(s)="" description="" (table="" 1733)="" 7="" busy="" in="" t.30="" ccitt="" fax="" protocol="" 6="" data="" on="" current="" page/file="" (only="" used="" for="" block="" xfers)="" 5="" retransmission="" of="" last="" page="" requested="" 4="" in="" file="" transfer="" mode="" 3="" data="" in="" buffer="" 2="" data="" buffer="" dumped="" on="" receive="" 1="" 200x100="" dpi="" resolution="" instead="" of="" 200x200="" dpi="" 0="" data="" modem="" in="" use,="" fax="" image="" modem="" not="" available="" bitfields="" for="" satisfaxtion="" board="" state:="" bit(s)="" description="" (table="" 1734)="" 7="" reserved="" 6="" handset="" jack="" active,="" data="" and="" fax="" modems="" not="" available="" 5-3="" current="" rate="" 000="" 300="" bps="" (v.21="" hdlc)="" 100="" 2400="" bps="" (v.27="" ter)="" 101="" 4800="" bps="" (v.27="" ter)="" 110="" 7200="" bps="" (v.29)="" 111="" 9600="" bps="" (v.29)="" 2-0="" t.30="" ccitt="" protocol="" state="" 000="" idle="" 001="" dialing="" 010="" answering="" 011="" transmitting="" 100="" receiving="" 101="" pre-message="" 110="" post-message="" 111="" disconnect="" --------f-2fcb13dl00-------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" get="" diagnostics="" results="" ax="CB13h" dl="00h" return:="" ax="0040h" in="" progress="">= 0	   passed
	   < 0="" hardware-dependent="" failure="" code="" (see="" #1735,#1736)="" seealso:="" ax="CB13h/DL=01h" bitfields="" for="" intel="" connection="" coprocessor="" failure="" codes:="" bit(s)="" description="" (table="" 1735)="" 3="" 9600="" bps="" fax="" modem="" module="" failed="" 2="" sdlc="" chip="" failed="" 1="" ram="" failed="" 0="" rom="" checksum="" failed="" bitfields="" for="" intel="" satisfaxtion="" failure="" codes:="" bit(s)="" description="" (table="" 1736)="" 1="" 2400="" bps="" data="" modem="" failed="" 0="" 9600="" bps="" fax="" modem="" failed="" --------f-2fcb13dl01-------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" start="" diagnostics="" ax="CB13h" dl="01h" return:="" ax="0000h" successfully="" started="" ax="">< 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB13h/DL=00h" --------f-2fcb14-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" move="" received="" file="" ax="CB14h" bx="event" handle="" cx="receive" file="" number="" 0001h="" first="" received="" file="" n="" nth="" received="" file="" ds:dx="" -=""> ASCIZ string specifying new name for file (must not exist)
Return: AX = 0000h successful
	AX < 0="" error="" code="" (see="" #1719)="" --------f-2fcb15-----------------------------="" int="" 2f="" -="" communicating="" applications="" specification="" -="" submit="" file="" to="" send="" ax="CB15h" ds:dx="" -=""> variable-length data area (see #1737)
Return: AX >= 0 event handle
	AX < 0="" error="" code="" (see="" #1719)="" seealso:="" ax="CB01h" format="" of="" cas="" file="" submission="" data="" area:="" offset="" size="" description="" (table="" 1737)="" 00h="" byte="" transfer="" type="" 00h="200x200" dpi,="" fax="" mode="" 01h="100x200" dpi,="" fax="" mode="" 02h="file" transfer="" mode="" 03h="" to="" 7fh="" reserved="" 01h="" byte="" text="" size="" 00h="80" columns="" 01h="132" columns="" 02h="" to="" 7fh="" reserved="" 02h="" word="" time="" to="" send="" (dos="" packed="" time,="" see="" #0876="" at="" int="" 21/ax="5700h)" 04h="" word="" date="" to="" send="" (dos="" packed="" date,="" see="" #0877="" at="" int="" 21/ax="5700h)" 06h="" 32="" bytes="" asciz="" destination="" name="" 26h="" 80="" bytes="" asciz="" name="" of="" file="" to="" send="" 76h="" 47="" bytes="" asciz="" phone="" number="" to="" dial="" a5h="" 64="" bytes="" asciz="" application-specific="" tag="" string="" e5h="" byte="" reserved="" (00h)="" e6h="" byte="" cover="" page="" 00h="" don't="" send="" cover="" page="" 01h="" send="" cover="" page="" 02h="" to="" 7fh="" reserved="" e7h="" 23="" bytes="" reserved="" (zeros)="" feh="" variable="" asciz="" string="" containing="" text="" of="" cover="" page="" (if="" cover="" page="" flag="" set="" to="" 01h)="" --------f-2fcb16bx1234-----------------------="" int="" 2f="" -="" communicating="" applications="" spec="" v1.2+="" -="" unload="" resident="" manager="" ax="CB16h" bx="1234h" cx="5678h" dx="9ABCh" return:="" ax="0000h" successful="" ax="">< 0="" error="" code="" note:="" the="" mtez="" xpressfax="" casmgr="" ignores="" the="" values="" in="" bx,cx,="" and="" dx="" seealso:="" ax="C000h/BX=444Bh,AX=CB00h" index:="" uninstall;cas="" manager="" --------f-2fcb17-----------------------------="" int="" 2f="" -="" communicating="" applications="" spec="" v1.2+="" -="" set="" cover="" page="" status="" ax="CB17h" bx="event" handle="" cl="cover" page="" status="" 00h="" not="" read="" 01h="" read="" by="" user="" return:="" ax="0000h" successful="" ax="">< 0="" error="" code="" --------f-2fcb80-----------------------------="" int="" 2f="" -="" intel="" satisfaxtion="" casmgr="" -="" ax="CB80h" return:="" --------f-2fcb81-----------------------------="" int="" 2f="" -="" intel="" satisfaxtion="" casmgr="" -="" ax="CB81h" return:="" --------f-2fcb82-----------------------------="" int="" 2f="" -="" intel="" satisfaxtion="" casmgr="" -="" ax="CB82h" return:="" --------f-2fcbdcbl56-------------------------="" int="" 2f="" -="" comwave="" microfax="" specification="" -="" get="" status="" array="" ax="CBDCh" bl="56h" bh="line" number="" (starts="" with="" 1)="" cx:dx="" -=""> 32-byte status buffer or 80 character string
Return: AX = number of cards installed, or FFFFh on error
Program: Comwave manufacturers the Microfax line of fax cards which are a high-
	  performance multi-card FAX solution for OEMs.
Note:	defaults to AH=CBh but can be changed
SeeAlso: AX=CBDDh,AX=DA00h
--------F-2FCBDDBL56-------------------------
INT 2F - Comwave Microfax Specification - COMMAND SUBMISSION
	AX = CBDDh
	BL = 56h
	BH = ?
	CX:DX -> command to execute
Return: AX = status
	    0000h success
	    FFFFh on error
SeeAlso: AH=2Ah,AX=CBDCh,AX=80FBh
--------c-2FCC--SI5453-----------------------
INT 2F U - PC-Kwik Programs - API
	AH = CCh
	SI = 5453h or 7473h
	AL = function number (at least 00h,01h,04h,05h,07h,80h)
	DL = program identifier (see #1738)
Return: SI = 7473h
	other registers vary by function
Note:	Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
	  thus supports this call
SeeAlso: INT 21/AH=2Bh/CX=4358h

(Table 1738)
Values for PC-Kwik program identifier:
 00h	all installed PowerPak programs
 01h	SUPERPCK/SUPER/QCACHE v4.00+ (disk cache)
 02h	PCKSPL (print spooler)
 04h	PCKSCRN (screen accelerator)
 05h	PCKKEY (keyboard enhancer)
 06h	PCKRAMD (RAM disk)
 08h	PCKWIK.SYS
 10h	PCKCDROM (CD-ROM support for SUPERPCK)
--------N-2FCC00-----------------------------
INT 2F - Tsoft NFSDRVR - INSTALLATION CHECK
	AX = CC00h
Return: AX = 7777h
	BX = ???
	CX = ???
	DX = ???
	ES = data segment of resident portion
SeeAlso: AX=CC01h,AX=CC06h
--------N-2FCC01-----------------------------
INT 2F - Tsoft NFSDRVR - ???
	AX = CC01h
	???
Return: ???
SeeAlso: AX=CC00h
--------N-2FCC02-----------------------------
INT 2F - Tsoft NFSDRVR - ???
	AX = CC02h
	???
Return: ???
SeeAlso: AX=CC00h
--------N-2FCC03-----------------------------
INT 2F - Tsoft NFSDRVR - ???
	AX = CC03h
	???
Return: ???
SeeAlso: AX=CC00h
--------N-2FCC04-----------------------------
INT 2F - Tsoft NFSDRVR - ???
	AX = CC04h
	???
Return: ???
SeeAlso: AX=CC00h
--------N-2FCC05-----------------------------
INT 2F - Tsoft NFSDRVR - ???
	AX = CC05h
	???
Return: ???
SeeAlso: AX=CC00h
--------N-2FCC06-----------------------------
INT 2F - Tsoft NFSDRVR - ???
	AX = CC06h
	???
Return: ???
SeeAlso: AX=CC00h
----------2FCD00-----------------------------
INT 2F - Intel Image Processing Interface - INSTALLATION CHECK
	AX = CD00h
Return: AL = state
		 00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
SeeAlso: AX=CD02h"Image"
--------P-2FCD00-----------------------------
INT 2F - LaserPort Interface - INSTALLATION CHECK
	AX = CD00h
Return: AL = status
	    FFh installed
SeeAlso: AX=CD0Fh"LaserPort"
--------U-2FCD00-----------------------------
INT 2F - SWELL.EXE - INSTALLATION CHECK
	AX = CD00h
Return: AX = 00FFh installed
	    BH = major version
	    BL = minor version
Program: SWELL.EXE is a TSR which swaps programs to disk when they EXEC a child
	  process with INT 21/AH=4Bh
--------s-2FCD00BX464F-----------------------
INT 2F - Forte/Gravis - INSTALLATION CHECK
	AX = CD00h
	BX = 464Fh ('FO')
	CX = 5254h ('RT')
	DX = 4520h ('E ')
Return: AX = CDFFh if installed
	    BX = 4155h ('AU')
	    CX = 4449h ('DI')
	    DX = 4F20h ('O ')
	    ES:SI -> program ID string
SeeAlso: INT 21/AX=FD12h
----------2FCD01-----------------------------
INT 2F - Intel Image Processing Interface - SET DEVICE NAME
	AX = CD01h
	CX:BX -> ASCIZ character device name ("LPTn", "COMn", "PRN")
Return: AL = status
	    00h successful
		CX:BX -> internal character device name
	    80h error
--------U-2FCD01-----------------------------
INT 2F - SWELL.EXE - SUSPEND ONCE
	AX = CD01h
Return: AX = 0000h
SeeAlso: AX=CD02h"SWELL"
----------2FCD02-----------------------------
INT 2F - Intel Image Processing Interface - GET VERSION NUMBER
	AX = CD02h
Return: AL = status
	    00h/01h successful
		BH = major version number (BCD)
		BL = minor version number (BCD)
	    80h error
Note:	if return AL = 01h, the IPI supports network redirection
SeeAlso: AX=CD00h"Image"
--------U-2FCD02-----------------------------
INT 2F - SWELL.EXE - SUSPEND
	AX = CD02h
Return: AX = 0000h
SeeAlso: AX=CD03h"SWELL"
----------2FCD03-----------------------------
INT 2F - Intel Image Processing Interface - SELECT SCAN LINE
	AX = CD03h
	BX = scan line
	CX = requested density in dots per inch (300, 600, or 1200)
Return: AL = status (see also AX=CD04h"Image")
	    00h successful
		CX = density at which scan line was mapped
		ES:DI -> start of scan line
	    80h unsuccessful
	    81h scan line out of range
		 82h unsupported scan line density
	    83h out of memory
SeeAlso: AX=CD04h"Image"
--------U-2FCD03-----------------------------
INT 2F - SWELL.EXE - ACTIVATE
	AX = CD03h
Return: AX = 0000h
SeeAlso: AX=CD02h"SWELL"
----------2FCD04-----------------------------
INT 2F - Intel Image Processing Interface - MOVE BITMAP TO SCANLINE
	AX = CD04h
	CX:BX -> structure (see #1740)
Return: AL = status (see #1739)
SeeAlso: AX=CD03h"Image"

(Table 1739)
Values for IPI function status:
 00h	successful
 80h	unsuccessful
 81h	scan line out of range
 82h	unsupported scan line density
 83h	out of memory
 84h	unrecognized source
 85h	initialization error

Format of structure:
Offset	Size	Description	(Table 1740)
 00h	WORD	image source (0 = conventional memory, 1 = expanded memory)
 02h	DWORD	pointer to image data
 06h	WORD	scan line on which to place
 08h	WORD	bit offset from start of scan line at which to place
 0Ah	WORD	density of bitmap data (300, 600, or 1200 dpi)
 0Ch	WORD	width in bits of data
 0Eh	WORD	source logical page number
 10h	WORD	source handle (only if source in expanded memory)
 12h	WORD	source offset (only if source in expanded memory)
--------U-2FCD04-----------------------------
INT 2F - SWELL.EXE - TURN OFF VERBOSE MODE
	AX = CD04h
Return: AX = 0000h
SeeAlso: AX=CD05h"SWELL"
----------2FCD05-----------------------------
INT 2F - Intel Image Processing Interface - PRINT PAGE
	AX = CD05h
Return: AL = status (00h,80h) (see #1739)
Note:	page image is retained, so multiple calls will print multiple copies of
	  the page
SeeAlso: AX=CD06h"Image"
--------U-2FCD05-----------------------------
INT 2F - SWELL.EXE - TURN ON VERBOSE MODE
	AX = CD05h
Return: AX = 0000h
SeeAlso: AX=CD04h"SWELL"
----------2FCD06-----------------------------
INT 2F - Intel Image Processing Interface - CLEAR PAGE
	AX = CD06h
Return: AL = status (00h,80h) (see #1739)
Note:	palette is reset to default
SeeAlso: AX=CD09h"Image"
--------U-2FCD06-----------------------------
INT 2F - SWELL.EXE - UNINSTALL
	AX = CD06h
Return: AX = status
	    0000h uninstalled
	    8002h programs still swapped, not uninstalled
----------2FCD07-----------------------------
INT 2F - Intel Image Processing Interface - reserved
	AX = CD07h
SeeAlso: AX=CD00h"Image"
--------U-2FCD07-----------------------------
INT 2F - SWELL.EXE - GET INFO
	AX = CD07h
	ES:BX -> 32-byte buffer for info (see #1741)
Return: AX = status
	    0000h successful
		ES:BX buffer filled
	    8001h buffer wrong size

Format of SWELL.EXE info buffer:
Offset	Size	Description	(Table 1741)
 00h	WORD	20h  (total size of buffer)
 02h	BYTE	suspend-once mode active if nonzero
 03h	BYTE	00h active, 01h suspended
 04h	BYTE	00h quiet, 01h verbose
 05h	BYTE	"Borland support" (allowing INT 21/AX=4B01h) on if nonzero
 06h 26 BYTEs	unused???
----------2FCD08-----------------------------
INT 2F - Intel Image Processing Interface - SCREEN IMAGE
	AX = CD08h
	CX:BX -> structure (see #1742)
Return: AL = status (00h,80h-85h) (see #1739)
SeeAlso: AX=CD05h"Image",AX=CD09h"Image"

Format of IPI screen image structure:
Offset	Size	Description	(Table 1742)
 00h	WORD	image source (0 = conventional memory, 1 = expanded memory)
 02h	DWORD	pointer to image data
 06h	WORD	horizontal position on paper of left edge (in 1200 dpi units)
 08h	WORD	vertical position on paper of top edge (in 1200 dpi units)
 0Ah	WORD	left cropping (currently must be zero)
 0Ch	WORD	top cropping (currently must be zero)
 0Eh	WORD	width (currently must be 8000h)
 10h	WORD	height (currently must be 8000h)
 12h	WORD	horizontal size of image in 1200 dpi units
 14h	WORD	vertical size of image in 1200 dpi units
 16h	WORD	aspect ratio (currently reserved)
 18h	WORD	initialization flag (if 01h, initialization is performed)
 1Ah	WORD	pixels per line of source data
 1Ch	WORD	number of scan lines in source data
 1Eh	WORD	number of scan lines in packet
 20h	WORD	bits per pixel (1,2,4,6, or 8)
 22h	WORD	pixels per byte (1,2,4, or 8)
 24h	WORD	compression type (currently only 00h [uncompressed] supported)
 26h	WORD	source page number (if in expanded memory)
 28h	WORD	source handle (if in expanded memory)
 2Ah	WORD	source offset (if in expanded memory)
--------U-2FCD08-----------------------------
INT 2F - SWELL.EXE - UNUSED
	AX = CD08h
Return: AX = FFFFh (error)
----------2FCD09-----------------------------
INT 2F - Intel Image Processing Interface - LOAD SCREEN
	AX = CD09h
	CX:BX -> structure (see #1743)
Return: AL = status (00h,80h) (see #1739)
SeeAlso: AX=CD06h"Image Processing",AX=CD0Ah"Image Processing"

Format of IPI load screen structure:
Offset	Size	Description	(Table 1743)
 00h	BYTE	style
		44h ('D') diamond style
		4Ch ('L') line style
 01h	BYTE	reserved (00h)
 02h	WORD	frequency in lines per inch [sic]
		currently, coerced to nearest of 50, 60, 68, 70, 75, 85, or 100
 04h	WORD	screen angle in degrees (-360 to 360)
		currently coerced to nearest of -45, 0, 45, or 90
--------U-2FCD09-----------------------------
INT 2F - SWELL.EXE - TURN OFF "BORLAND SUPPORT"
	AX = CD09h
Return: AX = 0000h
SeeAlso: AX=CD0Ah"SWELL"
----------2FCD0A-----------------------------
INT 2F - Intel Image Processing Interface - LOAD PALETTE
	AX = CD0Ah
	CX:BX -> palette structure (see #1744)
Return: AL = status (00h,80h) (see #1739)
SeeAlso: AX=CD09h"Image Processing"

Format of IPI palette structure:
Offset	Size	Description	(Table 1744)
 00h	BYTE	bits per pixel for which palette is to be used (1,2,4,6, or 8)
 01h	2**N	palette translation values, one per possible pixel value
--------U-2FCD0A-----------------------------
INT 2F - SWELL.EXE - TURN ON "BORLAND SUPPORT"
	AX = CD0Ah
Return: AX = 0000h
SeeAlso: AX=CD09h"SWELL"
--------P-2FCD0F-----------------------------
INT 2F - LaserPort Interface - EXECUTE FUNCTION
	AX = CD0Fh
	BL = function
		01h enable
		02h disable
		03h ???
Return: AL = status
	    00h success
SeeAlso: AX=CD00h"LaserPort"
--------K-2FCF00-----------------------------
INT 2F - TEMPLEXX 1.0 - INSTALLATION CHECK
	AX = CF00h
Return: AL = FFh if installed
Program: TEMPLEXX is a popup keyboard template by Henson Scientific, Inc.
Note:	values in AL other than 00h cause an immediate return without modifying
	  any registers
--------G-2FD000-----------------------------
INT 2F C - MDEBUG display driver - GET DRIVER STATUS
	AX = D000h
Return: CF set on error
	    all other registers must be unchanged)
	CF clear if successful
	    AL = FFh
	    AH = driver semaphor
		00h driver is not active
		01h driver is active
	    BX = CS of the driver
	    CX = driver version (CH = major, CL = minor, must be >= 013Ch)
	    DL = buffer semaphor
		00h driver is not pending
		01h driver is pending between functions 02h and 03h
	    DH = show semaphor
		00h driver is not pending
		01h driver is pending between functions 04h and 05h
Program: MDEBUG is a shareware memory-resident debugging tool by Bernd
	  Schemmer, including a memory monitor, an interpreter and a
	  disassembler
Range:	AH=C0h to AH=FFh, selected by switch or programmatically
Notes:	MDEBUG can use any two consecutive multiplex numbers between C0h and
	  FFh; the default is D0h for the display driver and D1h for the
	  command driver (see INT 60/AH=00h"MDEBUG" for the actual multiplex
	  numbers used)
	this function MUST be reentrant, as MDEBUG calls it after every popup
	  before any other actions.  The handler should not change any
	  registers if the display is in an unsupported mode or in a mode
	  MDEBUG supports itself, e.g. a normal text mode with at least 80x25
	  characters (i.e. 80x43 or 132x44 (v1.60+)). In this case MDEBUG will
	  not call any of the other functions for this popup session.
	MDEBUG will not call the other functions if the returned version is
	  less than the actual version of MDEBUG.
	if the driver is reentrant, DL and DH should be 00h
SeeAlso: AX=D001h,AX=D002h,AX=D003h,AX=D004h,AX=D005h
--------M-2FD000-----------------------------
INT 2F - ZWmous - INSTALLATION CHECK
	AX = D000h
Return: AX = 5A57h ("ZW") if installed
	    BX = segment of resident code
Program: ZWmous is a shareware TSR by Zen Wu which permits the use of a mouse
	  with many non-mouse applications by entering the letter under the
	  mouse cursor on button presses
SeeAlso: INT 33/AX=0003h
--------N-2FD000-----------------------------
INT 2F - Lotus CD/Networker - INSTALLATION CHECK
	AX = D000h
Return: AL = FFh if CD/Networker TSR is loaded
	BX = 4D44h ("MD") signature
	CX = Windows mode word (from INT 2F/AX=1600h) at time of TSR load
	DX = bitmap identifying all loaded CD/Networker TSRs.
Notes:	INT 2F/AH=D0h is used by CD/Networker to communicate between a
	  resident redirector TSR and a transient program that controls the
	  TSR's CD-ROM drive emulation (volume attachments, caching, etc).
	At present there is only one CD/Networker TSR; the bitmap always = 4.
SeeAlso: AX=D002h"Lotus",INT 2F/AX=1500h"CD-ROM"
--------G-2FD001-----------------------------
INT 2F C - MDEBUG display driver - INITIALIZE DRIVER
	AX = D001h
Return: CF set on error
	AL = driver semaphor
	AH = buffer semaphor
Range:	AH=C0h to AH=FFh, selected by switch or programmatically
Notes:	MDEBUG calls this function after every successful call of the function
	  00h. The function should reset all internal data and the status of
	  the driver. If this function returns an error, MDEBUG will not call
	  the other functions in this popup session.
	MDEBUG can use any two consecutive multiplex numbers between C0h and
	  FFh; the default is D0h for the display driver and D1h for the
	  command driver
SeeAlso: AX=D000h
--------G-2FD002-----------------------------
INT 2F C - MDEBUG display driver - SAVE GRAPHIC DATA
	AX = D002h
Return: CF set on error
	CF clear if successful
	    display memory saved and display switched to one of the text modes
			02h, 03h or 07h.
Note:	MDEBUG calls this function only once every popup session before
	  displaying its windows.
SeeAlso: AX=D000h,AX=D003h
--------N-2FD002BX4D44-----------------------
INT 2F - Multiplex - Lotus CD/Networker GET DATA AREA
	AX = D002h
	BX = 4D44h
	DX = bitmap identifying one loaded CD/Networker TSR
Return: ES:DI -> data area owned by TSR
Note:	the format of the data area changes with each minor revision, so it
	  cannot be counted on
SeeAlso: AX=D000h"Lotus"
--------G-2FD003-----------------------------
INT 2F C - MDEBUG display driver - RESTORE GRAPHIC DATA
	AX = D003h
Return: CF set on error
	CF clear if successful
	    display restored to the mode it was in before calling AX=D002h and
	      the display memory is restored
Note:	MDEBUG calls this function only once every popup session just before
	 it exits to normal DOS.
SeeAlso: AX=D000h,AX=D002h
--------G-2FD004-----------------------------
INT 2F - MDEBUG display driver - SHOW SAVED DATA
	AX = D004h
Return: CF set on error
	CF clear if successful
	    display switched to mode it was in before calling AX=D002h and the
	      display memory is restored
Note:	This function needn't save the display memory before changing it.
SeeAlso: AX=D000h,AX=D005h
--------G-2FD005-----------------------------
INT 2F - MDEBUG display driver - SWITCH BACK TO TEXT SCREEN
	AX = D005h
Return: CF set on error
	CF clear if successful
	    display restored to mode it was in before calling AX=D004h
Note:	This function needn't save or change the display memory
SeeAlso: AX=D000h,AX=D004h
--------G-2FD0-------------------------------
INT 2F - MDEBUG display driver - RESERVED FUNCTION NUMBERS
	AH = D0h
	AL = 06h-7Fh
Note:	these functions are reserved for future use
--------G-2FD0-------------------------------
INT 2F - MDEBUG display driver - USER DEFINED FUNCTION NUMBERS
	AH = D0h
	AL = 80h-FFh
Note:	these functions numbers are reserved for user defined features (e.g.
	  communication between the transient und resident parts of the driver)
--------G-2FD100-----------------------------
INT 2F C - MDEBUG command driver - GET STATUS
	AX = D100h
	BX = version of MDEBUG (BH = major, BL = minor)
	CX = command driver counter
---v1.60+---
	DS:SI -> MDEBUG identification table (see #1745)
	ES = segment of display memory used by MDEBUG
	DI = size of video mode used by MDEBUG
	    (high byte = lines, low byte = columns)
Return: DL = FFh
	BX = version number of the driver if it is less than the version in BX,
	      else unchanged
	CX incremented
Program: MDEBUG is a shareware memory-resident debugging tool by Bernd
	  Schemmer, including a memory monitor, an interpreter, and a
	  disassembler
Range:	AH=C0h to AH=FFh, selected by switch or programmatically
Notes:	called by MDEBUG at start of popup session; if the version number
	  returned in BX is less than 1.52 (1.60 for MDEBUG v1.70), MDEBUG will
	  not call any of the other functions during this popup session
	MDEBUG can use any two consecutive multiplex numbers between C0h and
	  FFh; the default is D0h for the display driver and D1h for the
	  command driver (see INT 60/AH=00h"MDEBUG" for the multiplex numbers
	  actually used)
	this function must end with a far call to the old INT 2F handler after
	  changing the registers
	this function MUST be reentrant
	command drivers must also declare the following data at the given
	  offsets in the code segment
		100h  3 BYTEs	JMP-command in .COM-files
		103h	BYTE	NOP-command (90h)
		104h 26 BYTEs	signature "Kommandotreiber für MDEBUG"
		11Eh 12 BYTEs	name of driver, e.g. "MDHISDRV.COM"
				each driver must have a unique name
	MDEBUG will pass every key and command to the command driver(s) before
	  checking for a valid internal command
SeeAlso: AX=D000h,AX=D101h

Format of MDEBUG identification table:
Offset	Size	Description	(Table 1745)
 -2	WORD	entry offset
 00h	WORD	CS of MDEBUG
 02h	DWORD	old INT 08h vector
 06h	DWORD	old INT 09h vector
 0Ah	DWORD	address INT 16h routine used by MDEBUG
 0Eh	BYTE	length of version string
 0Fh  N BYTEs	version string
--------G-2FD101-----------------------------
INT 2F - MDEBUG command driver - INITIALIZE DRIVER
	AX = D101h
	CX = command driver counter
Return: DL = status
	    FFh if successful
		CX incremented
	    else error: all registers unchanged
Note:	this function must end with a  far call to the old INT 2F handler after
	  changing the registers
	this function must be reentrant
--------G-2FD102-----------------------------
INT 2F - MDEBUG command driver - EXECUTE INTERPRETER COMMAND
	AX = D102h
	BL = first character of the interpreter command
	BH = last character of the interpreter command (or blank)
	DS:SI -> parameter for the interpreter command as ASCIZ string
	DS:DI -> MDEBUG data structure (see #1747)
Return: AL = FFh
	CF set on error
	    AH = error number (see #1746)
	    DS:SI -> ASCIZ error message (max 30 characters) if AH=0Ch
	CF clear if successful
	    AH = return code
		00h continue processing the command line
		01h leave MDEBUG popup session
		02h leave MDEBUG popup session and automatically popup again
		      if the InDOS flag is zero
		03h not used (same as 00h)
		04h not used (same as 00h)
		05h put new command line into the input buffer,
		    DS:SI -> new command line (ASCIZ string, max 66 chars)
		06h process new command line
		    DS:SI -> new command line (ASCIZ string, max 66 chars)
	       else unknown status, but continue processing commmand line
Note:	this function must end with a far call to the old INT 2F handler (with
	  registers unchanged) if the driver does not support the interpreter
	  command in BX.  Otherwise, the driver must not chain to the old
	  INT 2F.

(Table 1746)
Values for MDEBUG error number:
 01h	syntax error
 02h	first shell of the command.com is activ
 03h	Esc pressed
 04h	break pressed
 05h	DOS is busy
 06h	command ended
 07h	division by zero
 08h	invalid display driver
 09h	invalid command driver
 0Ah	error 8 and 9
 0Bh	unknown error
 0Ch	new error
 else	unknown error

Format of MDEBUG data structure:
Offset	Size	Description	(Table 1747)
 00h	WORD	register SE
 02h	WORD	register OF
 04h	WORD	register FS
 06h	WORD	register FO
 08h	WORD	register AX
 0Ah	WORD	register BX
 0Ch	WORD	register CX
 0Eh	WORD	register DX
 10h	WORD	register SI
 12h	WORD	register DI
 14h	WORD	register DS
 16h	WORD	register ES
 18h	WORD	register BP
 1Ah	WORD	register SS
 1Ch	WORD	register SP
 1Eh	WORD	register FL (flags)
 20h	WORD	register R0
 22h	WORD	register R1
 24h	WORD	register R2
 26h	WORD	register R3
 28h	WORD	register R4
 2Ah	WORD	register R5
 2Ch	WORD	register R6
 2Eh	WORD	register R7
 30h	WORD	register R8
 32h	WORD	register CS, return-address
 34h	WORD	register IP, return-address
 36h	DWORD	saved pointer to data for key  (v1.60)
		saved monitor address (v1.70)
 3Ah 12 WORDs	saved register values on last popup entry (for  key)
		(original register values at popup entry of MDEBUG)
		AX, BX, CX, DX, SI, DI, DS, ES, BP, SS, SP, flags
 52h 12 WORDs	saved register values on last popup exit (for  key)
		AX, BX, CX, DX, SI, DI, DS, ES, BP, SS, SP, flags
 6Ah	DWORD	address of the DOS-invars-table
 6Eh	DWORD	address of the InDOS flag
 72h	WORD	offset of the register which is used for the segment of the
		  first monitor window
 74h	WORD	offset of the register which is used for the offset of the
		  first monitor window
 76h	WORD	name of the register which is used for the segment of the
		  first monitor segment
 78h	WORD	name of the register which is used for the offset of the first
		  monitor window
 7Ah	WORD	pseudo register 1
 7Ch	WORD	pseudo register 2
--------G-2FD103-----------------------------
INT 2F - MDEBUG command driver - EXECUTE KEY IN THE MONITOR
	AX = D103h
	BX = key code (like result of an interrupt 16h call)
	CX = cursor position
	    0000h in the ASCII column of the monitor
	    0001h in one of the hex fields of the monitor
	DS:SI -> MDEBUG data structure (see #1747)
	ES:DI -> actual byte in the monitor
Return: AL = FFh
	AH = return code
	    00h key processed, read next key
	    01h leave MDEBUG popup session
	    02h leave MDEBUG popup session and automatically popup again if DOS
		  is not busy
	    03h signal an error (beep)
	    04h driver has redefined the key, proceed with the new key
		BX = new key code
		MDEBUG will not pass the new key to the command driver(s)
	   else treat like code 00h
Note:	this function must end with a far call to the old INT 2F handler (with
	  registers unchanged) if the driver does not support the key in BX.
	  Otherwise, the driver must not chain to the old INT 2F.
SeeAlso: AX=D104h
--------G-2FD104-----------------------------
INT 2F - MDEBUG command driver - EXECUTE KEY IN THE INTERPRETER
	AX = D104h
	DS:SI -> MDEBUG data structure (see #1747)
Return: AL = FFh
	AH = return code
	    00h key processed, read next key
	    01h leave MDEBUG popup session
	    02h leave MDEBUG popup session and automactically popup again if
		  DOS is not busy
	    03h signal an error (beep)
	    04h driver has redefined the key, proceed with the new key
		BX = new key code
		MDEBUG won't pass the new key to the command driver(s)
	    05h put new command line into the input buffer
		DS:SI -> new command line (ASCIZ string, max 66 chars)
	    06h process new command line
		DS:SI -> new command line (ASCIZ string, max 66 chars)
	   else treat like code 00h
Note:	this function must end with a far call to the old INT 2F handler if the
	  driver does not support the key in BX.  Otherwise, the driver must
	  not chain to the old INT 2F.
SeeAlso: AX=D103h
--------G-2FD1-------------------------------
INT 2F - MDEBUG command driver - RESERVED FUNCTIONS
	AH = D1h
	AL = 05h-0Ah
Note:	these functions are reserved for future use
--------G-2FD110-----------------------------
INT 2F - MDEBUG command driver - GET ADDRESS OF THE OLD INT 2F
	AX = D110h
Return: DL = FFh
	ES:BX -> next program in the chain for INT 2F
	CX = code segment of this driver
	DI = offset of driver identification table (see #1748) (v1.60+)
Notes:	only called by the transient part of the driver
	must be reentrant and the driver must not chain this function to the
	  old INT 2F

Format of the MDEBUG driver identification table:
Offset	Size	Description	(Table 1748)
 00h  26 BYTEs	 signature "Kommandotreiber für MDEBUG"
					     ^- Note: ASCII 129,German U-umlaut
 27h  12 BYTEs	 name of driver, e.g. "MDHISDRV.COM"
		 each driver must have a unique name
--------G-2FD111-----------------------------
INT 2F - MDEBUG command driver - START DRIVER
	AX = D111h
Return: DL = FFh
Notes:	only called by the transient part of the driver to inform the resident
	  part that it is installed
	the function must be reentrant and the driver mustn't chain this
	  function to the old INT 2F
SeeAlso: AX=D101h,AX=D112h
--------G-2FD112-----------------------------
INT 2F - MDEBUG command driver - END DRIVER
	AX = D112h
Return: DL = FFh
Notes:	only called by the transient part of the driver to inform the resident
	  part that it will be released after this function
	the function must be reentrant and the driver mustn't chain this
	  function to the old INT 2F
SeeAlso: AX=D101h,AX=D111h
--------G-2FD1-------------------------------
INT 2F - MDEBUG command driver - RESERVED FUNCTIONS
	AH = D1h
	AL = 13h-7Fh
Note:	these functions are reserved for future use
--------G-2FD1-------------------------------
INT 2F - MDEBUG command driver - USER DEFINED FUNCTIONS
	AH = D1h
	AL = 80h-FFh
Note:	these functions are reserved for user defined features (e.g.
	  communication between the transient und resident parts of the driver)
--------U-2FD200-----------------------------
INT 2F - PCL-838.EXE - INSTALLATION CHECK
	AX = D200h
Return: AL = FFh if installed??? (documented as AX = return value)
Program: PCL-838 is a resident utility for controlling a stepmotor adapter
	  board by Advantec
SeeAlso: AX=D201h"PCL-838",AX=D202h"PCL-838"
--------Q-2FD200BX5144-----------------------
INT 2F - Quarterdeck RPCI - INSTALLATION CHECK
	AX = D200h
	BX = 5144h ("QD")
	CX = 4D45h ("ME")
	DX = 4D30h ("M0")
Return: AL = FFh installed
	if BX,CX,DX registers were as specified on entry:
	    BX = 4D45h ("ME")
	    CX = 4D44h ("MD")
	    DX = 5652h ("VR")
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
Notes:	the Quarterdeck RPCI (Resident Program Communication Interface) is
	  supported by QEMM v5.0+, QRAM, MANIFEST, VIDRAM, etc.
	for AL <> 0, if the BX/CX/DX values don't match the identifier of a
	  Quarterdeck product, it just chains to the previous INT 2F handler
SeeAlso: AX=D201h/BX=4849h,AX=D201h/BX=4D41h,AX=D201h/BX=4D45h
SeeAlso: AX=D201h/BX=5145h,AX=D201h/BX=5649h
--------U-2FD201-----------------------------
INT 2F - PCL-838.EXE - UNINSTALL
	AX = D201h
Return: AX = return value
SeeAlso: AX=D200h"PCL-838",AX=D202h"PCL-838"
--------m-2FD201BX4849-----------------------
INT 2F - Quarterdeck RPCI - GET QD HIMEM PRESENCE
	AX = D201h
	BX = 4849h ("HI")
	CX = 4D45h ("ME")
	DX = 4D51h ("MQ")
Return: BX = 4F4Bh ("OK")
	ES:DI -> HIMEM entry point
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
SeeAlso: AX=D200h,AX=D201h/BX=5145h
--------m-2FD201BX4849-----------------------
INT 2F - Quarterdeck RPCI - QEMM/QRAM v5.0+ - GET HIRAM MEMORY CHAIN
	AX = D201h
	BX = 4849h ("HI")
	CX = 5241h ("RA")
	DX = 4D30h ("M0")
Return: BX = 4F4Bh ("OK")
	CX = segment of start of HIRAM chain
	DX = reserved block owner (QEMM/QRAM code segment)
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
Note:	the HIRAM memory chain has the same format as the regular DOS 4.0
	  memory chain (see #0841 at INT 21/AH=52h), except that XMS Upper
	  Memory Blocks have the block header program name field set to
	  "UMB"; blocks whose "owner" field is set to the reserved segment
	  returned in DX are locked-out regions such as video memory and ROMs.
SeeAlso: AX=12FFh/BX=0006h,AX=D200h
--------G-2FD201BX4D41-----------------------
INT 2F U - Quarterdeck RPCI - MANIFEST v1.0+ - INSTALLATION CHECK
	AX = D201h
	BX = 4D41h ("MA")
	CX = 4E49h ("NI")
	DX = 4645h ("FE")
Return: BX = 5354h ("ST") if installed
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
SeeAlso: AX=D200h
--------E-2FD201BX4D45-----------------------
INT 2F U - Quarterdeck RPCI - DVDOS4GX.DVR - ???
	AX = D201h
	BX = 4D45h ("ME")
	CX = 5155h ("QU")
	DX = 5044h ("PD")
Return: AL = FFh
	BX = 4F4Bh ("OK")
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
Note:	this function is called by QEMM 6.03
	performs a variety of actions before setting return registers
SeeAlso: AX=D200h
--------m-2FD201BX5145-----------------------
INT 2F - Quarterdeck RPCI - QEMM v5.0+ - INSTALLATION CHECK
	AX = D201h
	BX = 5145h ("QE")
	CX = 4D4Dh ("MM")
	DX = 3432h ("42")
Return: BX = 4F4Bh ("OK")
	ES:DI -> QEMM API entry point (see INT 67/AH=3Fh)
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
Note:	this call is not available under QEMM v6.00 unless Windows3 support
	  has been disabled with the NW3 switch to QEMM386.SYS
SeeAlso: AX=D200h,AX=D201h/BX=4849h,INT 67/AH=3Fh
--------V-2FD201BX5649-----------------------
INT 2F u - Quarterdeck RPCI - VIDRAM v5.0+ - INSTALLATION CHECK
	AX = D201h
	BX = 5649h ("VI")
	CX = 4452h ("DR")
	DX = 414Dh ("AM")
Return: BX = 4F4Bh ("OK")
	ES:DI -> VIDRAM entry point (see #1749)
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
SeeAlso: AX=D200h

(Table 1749)
Call VIDRAM entry point with:
	AH = 00h get status
		Return: AL = VIDRAM state (see #1750)
			BL = extra RAM status (see #1751)
			BH = feature flags (see #1752)
			CL = current monitor (01h = mono, 80h = color)
			SI = current top of memory (paragraph)
			DI = segment of start of HiRAM chain
	AH = 01h setup
		AL = VIDRAM state (see #1750)
		BL = extra RAM status (see #1751)
		BH = feature flags (see #1752)
		CL = monitor (01h = monochrome, 80h = color)
		SI = new top of memory (paragraph)
		DI = segment of start of HiRAM chain
	AH = 02h get end address of VIDRAM code
		Return: ES:DI -> VIDRAM partial map context (see #1753,#1754)
Return: CF set on error
	CF clear if successful

(Table 1750)
Values for VIDRAM state:
 00h	off
 01h	no EGA graphics
 02h	no graphics at all

(Table 1751)
Values for VIDRAM extra RAM status:
 00h	VIDRAM does not use extra RAM
 01h	VIDRAM uses EMS as extra RAM
 02h	VIDRAM uses EGA as extra RAM
 
Bitfields for VIDRAM feature flags:
Bit(s)	Description	(Table 1752)
 0	override enabled
 1	mapped memory detected in A000h-B000h range
 2	top of memory not at 640K
 3	MDA detected
 4	high RAM exists in video area
 5	mapped memory detected in video area
 6-7	reserved???

Format of VIDRAM partial map context (EMS 3.2):
Offset	Size	Description	(Table 1753)
 00h	BYTE	EMS version ID (32h)
 01h	WORD	EMM handle for this entry
 03h	BYTE	number of frames
 04h	BYTE	first page frame
 05h	WORD	offset from ES to previously saved map

Format of VIDRAM partial map context (EMS 4.0):
Offset	Size	Description	(Table 1754)
 00h	BYTE	EMS version ID (40h)
 01h	WORD	mappable segment count
 03h  N WORD	mappable segments
	WORD	offset to previously saved map???
--------U-2FD202-----------------------------
INT 2F - PCL-838.EXE - EXECUTE PCL838 COMMANDS
	AX = D202h
	CX:BX -> parameter table
Return: AX = return value
SeeAlso: AX=D200h"PCL-838",AX=D201h"PCL-838"
--------R-2FD300BX4562-----------------------
INT 2F U - TeleReplica - INSTALLATION CHECK
	AX = D300h
	BX = 4562h
	CX = 2745h
	DX = serial port I/O base address??? (03F8h for v3.9)
Return: SI = segment of resident code
	AX = 251Dh
	BX = DF21h
	CX = F321h
	DX = ???
--------R-2FD3CB-----------------------------
INT 2F U - LapLink Quick Connect v6 - API
	AX = D3CBh
	CX = function
	    0002h get ???
		Return: BX:AX -> ???
			CL = ???
			CH = ???
			DX = ???
			DI = COM1 I/O port???
			SI = COM2 I/O port???
	    0003h initialization???
	    0004h ???
	    0005h initialization???
	    0006h reset/clear ???
		Return: AX = 0000h
			ES:DI -> next byte after ??? cleared by this call
	    0007h initialization???
	    0008h uninstall
		Return: BX = status
			    0000h successful
			    FFFFh incomplete, stub remains in memory
Return: CX = 534Bh (except function 0002h)
Index:	uninstall;LapLink Quick Connect
--------l-2FD44D-----------------------------
INT 2F - 4DOS.COM v2.1+ - API
	AX = D44Dh
	BH = function
	    00h installation check
		Return: AX = 44DDh
			BL = major version number
			BH = minor version number
			CX = PSP segment address for current invocation
			DL = 4DOS shell number (0 for the first (root) shell,
			      updated each time a new copy is loaded)
	    01h (internal, v2.1-3.03) terminate current copy of 4DOS
		Return: nothing
		(internal, v4.0) ???
		Return: AX = 44DDh
			ES:BX -> data area (see #1755)
	    02h ???
		DX = ???
	---v2.1-3.03 only---
	    03h EXEC program
		CX:DX -> EXEC record (see #1756)
	    FEh deallocate shell number (passed through to root shell)
		???
	    FFh allocate shell number (passed through to root shell)
Note:	bug in v3.00 will crash system if unrecognized value in BH
SeeAlso: AX=D44Eh,AX=E44Dh,INT 21/AX=4403h
Index:	installation check;4DOS|installation check;NDOS

Format of 4DOS v4.0 data area:
Offset	Size	Description	(Table 1755)
 00h  2 BYTEs	???
 06h	WORD	XMS handle for swapping
	???

Format of 4DOS EXEC record:
Offset	Size	Description	(Table 1756)
 00h	WORD	offset of ASCIZ program name in same segment as EXEC record
 02h	WORD	offset of DOS commandline in same segment as EXEC record
 04h	WORD	segment of environment for child process (see INT 21/AH=26h)
--------l-2FD44E-----------------------------
INT 2F C - 4DOS v3.0+ - AWAITING USER INPUT
	AX = D44Eh
---4DOS v3.01+---
	BX = condition
	    0000h 4DOS is ready to display prompt
	    0001h 4DOS has displayed the prompt, about to accept user input
Return: the handler must preserve SI, DI, BP, SP, DS, ES, and SS
Note:	v3.00 only makes the call corresponding to BX=0001h, does not set BX
SeeAlso: AX=D44Dh
--------K-2FD44FBX0000-----------------------
INT 2F - 4DOS v4.0+ - KSTACK.COM - INSTALLATION CHECK
	AX = D44Fh
	BX = 0000h
Return: AX = 44DDh if installed
Note:	this function is also supported by ANSIPLUS v3.01+ and K3PLUS v6.20+,
	  which emulate the 4DOS and NDOS keystack
SeeAlso: AX=D44Fh/BX=0001h,AX=E44Fh/BX=0000h
--------K-2FD44FBX0001-----------------------
INT 2F - 4DOS v4.0+ - KSTACK.COM - PLACE KEYSTROKES INTO KEYSTACK
	AX = D44Fh
	BX = 0001h
	CX = number of keystrokes (01h-FFh)
	DS:DX -> keystroke list (one word per keystroke)
Return: AX = status
	    0000h successful
	    nonzero failed
	BX,CX,DX destroyed
Notes:	the keystrokes are the exact values to return from subsequent calls to
	  INT 16 with AH=00h,01h,10h, or 11h, with the following exceptions:
		0000h causes subfunctions 01h and 11h to indicate an empty
		      keyboard buffer
		FFFFh is followed by a word indicating the number of clock
		      ticks to delay before the next faked keystroke
	v4.00 KSTACK overwrites any unread keystrokes from the previous
	  invocation, and does not range-check CX; it will overwrite memory
	  following the resident portion if CX is greater than 100h.
	this function is also supported by ANSIPLUS v3.01+ and K3PLUS v6.20+,
	  which emulate the 4DOS and NDOS keystack
SeeAlso: AX=D44Fh/BX=0000h,INT 16/AH=00h,INT 21/AX=4403h
--------G-2FD600-----------------------------
INT 2F - HEART.COM - INSTALLATION CHECK
	AX = D600h
Return: AX = 0303h (two hearts) if installed
	    ES:DI -> buffer (see #1757)
Program: HEART.COM is a CPU lock-up/critical indicator utility by Mitch Davis.
Notes:	Once the host program has identified the address of the data area, it
	  can change this to indicate safe/critical, alternate colours, etc.
	The entries for the color table are in char/attrib form.  Every two
	  entries form a pair which is alternated between 68 times a minute.
	  The first half of the table is for color videos, the second mono.
	  Within each half, the first half is for the safe chars, and the
	  second for the critical chars.

Format of HEART.COM buffer:
Offset	Size	Description	(Table 1757)
 00h  8 WORDs	table of colors/attributes (see notes above)
 10h	BYTE	flags
		bit 0: program is in critical section, so flash double
		      exclamation mark
		bit 1: program is in safe code, so flash the heart character
 11h	WORD	position of heartbeat on screen, normally 009Eh (last column
		of second line)
--------T-2FD600-----------------------------
INT 2F U - VEDIT VSWAP - INSTALLATION CHECK
	AX = D600h
Return: AL = D6h if installed
Program: VSWAP is the resident portion of VEDIT's "swapper" capability; VEDIT
	  is a programmer's text editor by Greenview Data.
SeeAlso: AX=D601h,AX=D602h
--------T-2FD601-----------------------------
INT 2F U - VEDIT VSWAP - ???
	AX = D601h
	BL = subfunction number???
Return: BL = return code ???
	ES = resident portion's data??? segment
	DX = resident portion's code segment
SeeAlso: AX=D600h"VSWAP"
--------T-2FD602-----------------------------
INT 2F U - VEDIT VSWAP - EXEC PROGRAM WITH SWAP
	AX = D602h
	other registers set as for INT 21/AX=4B00h
Return: CF set on error
		 AL = error code
		82h = failure due to ???
	CF clear on success
SeeAlso: AX=D600h"VSWAP",INT 21/AH=4Bh"EXEC"
--------N-2FD701BX0000-----------------------
INT 2F - Banyan VINES v4+ - GET BANV INTERRUPT NUMBER
	AX = D701h
	BX = 0000h
Return: AX = 0000h if installed
	    BX = interrupt number (60h to 66h)
	   nonzero not present
Note:	if AX is nonzero, VINES 3.x or earlier may be installed, thus it is
	  necessary to examine the four bytes preceding the handlers for
	  INT 60 through INT 66 for the string "BANV"
SeeAlso: AX=D702h,AX=D703h,AX=D704h
--------N-2FD702-----------------------------
INT 2F U - Banyan VINES v4+ - PCPRINT interface
	AX = D702h
	BX = function
	???
Return: ???
SeeAlso: AX=D701h,AX=D703h,INT 61/AX=0005h"Banyan"
--------N-2FD703-----------------------------
INT 2F U - Banyan VINES v4+ - MAIL interface
	AX = D703h
	BX = function
	???
Return: ???
SeeAlso: AX=D702h,AX=D704h
--------N-2FD704-----------------------------
INT 2F U - Banyan VINES v4+ - Streettalk Directory Assistance interface
	AX = D704h
	BX = function
	???
Return: ???
SeeAlso: AX=D703h,INT 61/AX=0007h/BX=0002h"Banyan",INT 61/AX=0007h/BX=0008h
--------N-2FD800-----------------------------
INT 2F U - Novell NetWare Lite - CLIENT.EXE - INSTALLATION CHECK
	AX = D800h
Return: AL = FFh if installed
	    DX = version number (0100h for v1.0, 0101h for v1.1)
	    BX = data segment of resident copy
	    ES:DI -> private API entry point (see #1758)
	    SI = segment of resident code
SeeAlso: AX=7A00h,AX=D880h

(Table 1758)
Call CLIENT API entry point with:
	BX = function
	    0000h get ???
		Return: DX = CLIENT version??? (0101h for v1.1)
			ES:BX -> ??? data
	    0001h ???
	    0002h ???
	    0003h ???
	    0004h ???
	    0005h ???
		DL = ???
		???
		Return: ???
	    0006h get module name???
		ES:DI -> 16-byte buffer
		Return: CX = ???
			ES:DI filled with "NWLITE_CLIENT" 00h 00h 00h
	    0007h ???
		DX:CX = ???
		???
		Return: ???
	    0008h ???
		 0009h ???
		DL = ???
		ES:DI -> 16-byte buffer for ???
		Return: CF clear if successful
			    AX = 0000h
			    CX = 0000h
			    SI,DI destroyed
			CF set on error
			    AX = error code 4903h
	    000Ah ???
		AH = subfunction
		    00h get ???
		    01h clear/set ??? flag
			AL = new state (00h cleared, 01h set)
		    02h set ???
			DX = new value of ???
		Return: DX = old value of ???
	    000Bh ???
		AX = ???
		???
		Return: ???
	    000Ch ???
		AX = ???
		???
		Return: ???
	    000Dh ???
		AX = ???
		???
		Return: ???
	    000Eh get original INT 17
		Return: CF clear
			ES:BX -> original INT 17
	    000Fh ???
	    0010h ???
		AX = ???
		???
		Return: ???
	    0011h get ???
		Return: CF clear
			DL = ???
	    0012h get ???
		AL = index of ???
		ES:DI -> 10-byte buffer for ???
		Return: CF clear if successful
			    ES:DI buffer filled
			    AX,CX destroyed
			CF set on error
			    AX = error code (4907h if AL out of range)
	    0013h get ???
		Return: CF clear
			DH = ???
			DL = ???
	    0014h ???
		DL = ???
		???
		Return: CF clear if successful
			    ???
			CF set on error
			    AX = error code 8056h
	    0015h ???
		DX = ???
		Return: ES:DI -> ???
	    other
		Return: CF set
			AX = 0001h (invalid function)
--------N-2FD856-----------------------------
INT 2F U - Novell NetWare Lite v1.1 - SERVER - GET ???
	AX = D856h
Return: AX = 0001h if supported???
	BX = ??? (0004h for v1.1)
	CX = ??? (0F20h for v1.1)
	DS = segment of resident code
	ES = data segment of resident copy
Note:	this function is also supported by Personal NetWare SERVER, bundled
	  with Novell DOS 7
--------N-2FD880-----------------------------
INT 2F U - Novell NetWare Lite v1.0+ - SERVER - INSTALLATION CHECK
	AX = D880h
Return: AL = FFh if installed
	    DX = version number (0100h for v1.0, 0101h for v1.1)
	    BX = data segment of resident copy
	    CL = current state (00h SERVER is disabled, 01h SERVER is active)
	    ES:DI -> private API entry point (see #1759)
	    SI = ??? (offset of configuration info?)
Note:	this function is also supported by Personal NetWare SERVER, but DI is
	  not set; instead, ES:SI points at the API entry point
SeeAlso: AX=7A00h,AX=D800h,INT 2A/AX=D852h

(Table 1759)
Call SERVER API entry point with:
	BX = function
	    0000h ???
		???
		Return: ???
		Note: closes open files by calling INT 21/AH=3Eh
	    0001h get connection information
		DX = connection number (0001h-max connections)
		ES:DI -> 28-byte buffer for connection information
		Return: CF clear if successful
			    ES:DI buffer filled
			CF set on error
			    AX = FFFFh
	---Personal NetWare only---
	    0002h ???
	    0003h ???
	    0004h ???
	    0005h ???
	    0006h ???
	    0007h ???
	    other
		Return: CF set
			AX = 0001h (invalid function)
--------d-2FD8C0-----------------------------
INT 2F U - Novell NLCACHE,NWCACHE - INSTALLATION CHECK
	AX = D8C0h
Return: AL = FFh if installed
	    CL = cache variant (01h NLCACHEC, 02h NLCACHEX, 03h NLCACHEM)
	    DH = major version??? (01h for v1.1)
	    DL = minor version??? (01h for v1.1)
	    ES:DI -> private API entry point (see #1760)
Program: NLCACHE is a disk cache included with NetWare Lite
SeeAlso: AX=D800h,AX=D880h

(Table 1760)
Call NLCACHE/NWCACHE API entry point with:
	BX = function
	    0000h ???
		???
		Return: CF clear if successful
			    AX = 0000h
			    ???
			CF set on error
			    AX = error code
	    0001h (NWCACHE only) ???
		ES:DI -> buffer for ???
		Return: ???
	    other
		Return: CF set
			AX = 0001h (invalid function)
--------F-2FDA00-----------------------------
INT 2F - ZyXEL ZFAX - INSTALLATION CHECK
	AX = DA00h
Return: AH = enabled state (00h = enabled, 01h = disabled)
	AL = 5Ah installed
Program: ZFAX is the bundled FAX software which comes with the ZyXEL model
	  fax modems.
Note:	This function, and the other DAxxh functions, may apply only to version
	  1 of the software; see AX=DB00h for the version 2 installation check
SeeAlso: AX=CBDCh,AX=DA01h,AX=DA02h,AX=DA03h,AX=DB00h
--------F-2FDA01-----------------------------
INT 2F - ZyXEL ZFAX - UNINSTALL
	AX = DA01h
Return: AL = 00h Success
	     01h Failure
SeeAlso: AX=DA00h,AX=DB01h
--------F-2FDA02-----------------------------
INT 2F - ZyXEL ZFAX - DISABLE
	AX = DA02h
Return: AL = 00h
SeeAlso: AX=DA03h,AX=DB02h
--------F-2FDA03-----------------------------
INT 2F - ZyXEL ZFAX - ENABLE
	AX = DA03h
Return: AL = 00h
SeeAlso: AX=DA02h,AX=DB03h
--------G-2FDA55-----------------------------
INT 2F U - TRAP.COM - INSTALLATION CHECK
	AX = DA55h
	DL = interrupt number
	DH = ???
Return: if installed
	    AH = interrupt number
	    AL = ???
	    ES:BX -> ???
Program: TRAP is an interrupt call tracer by Patrick Phillipot/Udo Chrosziel
Note:	a separate copy of TRAP is loaded for each interrupt to be traced; thus
	  the interrupt number is part of the installation check
--------N-2FDAB2-----------------------------
INT 2F U - Beame&Whiteside BWSNMP - INSTALLATION CHECK
	AX = DAB2h
Return: AX = 00FFh if installed
	    BX:CX -> MIB table
Program: BWSNMP is part of the BW-NFS package
SeeAlso: INT 62/AH=00h"ETHDEV"
--------F-2FDB00-----------------------------
INT 2F - ZyXEL ZFAX v2+ - INSTALLATION CHECK
	AX = DB00h
Return:	AL = 5Bh if installed (v2.x)
	    ES:BX -> ???
	AX = 00DBh if installed (v3)
	    ES:BX -> ZFAX configuration table (see #1761)
Program: ZFAX is the bundled FAX software which comes with the ZyXEL model
	  fax modems.
SeeAlso: AX=CBDCh,AX=DA00h,AX=DB01h,AX=DB02h,AX=DB03h

Format of ZFAX Configuration Table:
Offset	Size	Description	(Table 1761)
 00h	WORD	version number (0300h for v3.0)
 02h	BYTE	reserved
 03h 70 BYTEs	ZFAX working path
 49h 128 BYTEs	path to external editor
 C9h 128 BYTEs	path to external terminal emulator
149h 128 BYTEs	path to Ring Shell
1C9h 128 BYTEs	path to DOS Shell
249h 128 BYTEs	path to Data Shell
2C9h 70 BYTEs	path to Chinese font
30Fh	BYTE	printer type (see #1762)
310h	BYTE	printer port (00h = LPT1, etc.)
311h	BYTE	type of graphics adapter
		(00h auto-detect, 01h VGA, 02h EGA, 03h CGA, 04h Hercules)
312h	BYTE	display type
		(00h auto-detect, 01h LCD, 02h color, 03h mono)
313h	BYTE	scan code for ZFAX hotkey
314h	BYTE	shift mask for ZFAX hotkey
315h	BYTE	tone/pulse dialing (00h tone, 01h pulse)
316h	BYTE	Caller ID (00h disabled, 01h enabled)
317h	BYTE	Distinctive Ring (00h disabled, 01h enabled)
318h	BYTE	normal ring answer type (see #1763)
319h	BYTE	Ring 1 answer type (see #1763)
31Ah	BYTE	Ring 2 answer type (see #1763)
31Bh	BYTE	Ring 3 answer type (see #1763)
31Ch	BYTE	COM port for modem
31Dh	BYTE	speaker volume (00h-07h)
31Eh	BYTE	modem dial timer, seconds
31Fh	WORD	user-defined COM port I/O address
321h	BYTE	user-defined COM port IRQ number
322h 81 BYTEs	dial prefix string
373h 79 BYTEs	dial postfix string
3C2h	BYTE	ring count until automatic answer
3C3h	BYTE	retry count on busy signal
3C4h	BYTE	redial delay in seconds
3C5h	WORD	system password
3C7h	BYTE	reserved
3C8h	BYTE	voice file compression format
		00h CELP at 9600bps
		01h two-bit ADPCM at 19200bps
		03h three-bit ADPCM at 28800bps
3C9h	BYTE	voice system: DTMF 0 action (see #1764)
3CAh	BYTE	voice system: DTMF 1 action
3CBh	BYTE	voice system: DTMF 2 action
3CCh	BYTE	voice system: DTMF 3 action
3CDh	BYTE	voice system: DTMF 4 action
3CEh	BYTE	voice system: DTMF 5 action
3CFh	BYTE	voice system: DTMF 6 action
3D0h	BYTE	voice system: DTMF 7 action
3D1h	BYTE	voice system: DTMF 8 action
3D2h	BYTE	voice system: DTMF 9 action (see #1764)
3D3h	WORD	reserved
3D5h 25 BYTEs	local FAX ID to display on page header
3EEh 20 BYTEs	local FAX ID sent to remote FAX
402h	BYTE	FAX page size
		00h A4 (210x297mm)
		01h B4 (250x353mm)
		02h A3 (297x420mm)
403h	BYTE	FAX resolution
		00h normal (3.85 pixels/mm)
		01h high (7.7 pixels/mm)
404h	BYTE	FAX coding scheme
		00h 1-D, modified Huffman coding
		01h 2-D, modified READ coding
405h	BYTE	left margin for text in millimeters
406h	BYTE	vertical insertion for text in mm (0-20)
407h	BYTE	horizontal insertion in mm (0-20)
408h	BYTE	maximum text lines per page
409h	BYTE	text type (00h ASCII, 01h WordStar-formatted)
40Ah	BYTE	PCX image resize (00h disabled, 01h enabled)
40Bh	BYTE	AutoPrint (00h disabled, 01h enabled)
40Ch	BYTE	cover page (00h disabled, 01h enabled)
40Dh 81 BYTEs	cover page logo filename
45Eh 65 BYTEs	cover page sender name
49Fh	BYTE	print capture (00h disabled, 01h enabled)
4A0h	BYTE	send immediately (00h disabled, 01h enabled)
4A1h	BYTE	print capture printer port
4A2h	BYTE	print capture timer in seconds
4A3h	BYTE	scan code for print capture hotkey
4A4h	BYTE	shift mask for print capture hotkey
4A5h	BYTE	DataShell type
		00h internal Zmodem, 01h Data Shell, 02h disable
4A6h	BYTE	video I/O type
		00h auto-detect, 01h use BIOS, 02h direct writes
4A7h	BYTE	call transfer digits
4A8h	WORD	voice recorder maximum time in seconds (0-999)

(Table 1762)
Values for ZFAX printer type:
 00h	EPSON FX (9 pins)
 01h	EPSON LQ (24 pins)
 02h	HP Laser Jet II, letter size
 03h	HP Laser Jet II, legal size
 04h	HP Laser Jet II, A4 size
 05h	HP Laser Jet III, letter size
 06h	HP Laser Jet III, legal size
 07h	HP Laser Jet III, A4 size

(Table 1763)
Values for Ring Answer Type:
 00h	voice system
 01h	FAX only
 02h	Data Shell
 03h	Ring Shell
 04h	DOS Shell
 05h	ignore

(Table 1764)
Values for DTMF action:
 00h	none
 01h	page operator
 02h	FaxBack
 03h	announcement
 04h	call transfer
 05h	receive FAX
 06h	receive data
 07h	voice mailbox
 08h	DOS Shell Out
 09h	Data Shell Out
--------U-2FDB00-----------------------------
INT 2F U - WINGO.COM - INSTALLATION CHECK
	AX = DB00h
Return: AX = FFFFh if installed
	CX = 5749h ('WI') if installed
	DX = 4E47h ('NG') if installed
	    ES = segment of resident code
Program: WINGO.COM is TSR for starting Windows programs from DOS
	  prompt (together with companion Windows program 
	  WINSTART.EXE) written by Douglas Boling, contributing editor of
	  PC Magazine
Range:	AH=DBh to AH=FFh, selected by scanning for a free multiplex number
SeeAlso: AX=DB01h"WINGO",AX=DB02h"WINGO",AX=DB03h"WINGO",AX=DB04h"WINGO"
SeeAlso: AX=DB05h"WINGO",AX=DB06h"WINGO"
--------F-2FDB01-----------------------------
INT 2F - ZyXEL ZFAX v2+ - UNINSTALL
	AX = DB01h
Return: AX = status
	    0000h successful
	    0001h ZFAX is busy
	    0002h another program resident above ZFAX
Note:	this function unhooks the vectors taken by the ZFAX TSR if they have
	  not been hooked by other TSRs and releases the TSR's memory
	ZFAX v2.x crashes the contributor's machine when this function is
	  called
SeeAlso: AX=DA01h,AX=DB00h
--------U-2FDB01-----------------------------
INT 2F U - WINGO.COM - SET CALLBACK FUNCTION POINTER
	AX = DB01h
	CX:DX -> new callback function
Return: AX = 0000h
	CX:DX -> end of resident code (stack ???)
Desc:	the callback function is used for WINGO <-> WINSTART communication
SeeAlso: AX=DB00h"WINGO",AX=DB02h"WINGO",AX=DB03h"WINGO",AX=DB04h"WINGO"
SeeAlso: AX=DB05h"WINGO",AX=DB06h"WINGO"
--------F-2FDB02-----------------------------
INT 2F - ZyXEL ZFAX v2.x - DISABLE
	AX = DB02h
Return: AL = 00h
SeeAlso: AX=DA02h,AX=DB00h,AX=DB03h
--------U-2FDB02-----------------------------
INT 2F U - WINGO.COM - RESET CALLBACK FUNCTION POINTER
	AX = DB02h
Return: AX = 0000h
Desc:	the callback function is used for WINGO <-> WINSTART communication
SeeAlso: AX=DB00h"WINGO",AX=DB01h"WINGO",AX=DB03h"WINGO",AX=DB04h"WINGO"
SeeAlso: AX=DB05h"WINGO",AX=DB06h"WINGO"
--------F-2FDB03-----------------------------
INT 2F - ZyXEL ZFAX v2.x - ENABLE
	AX = DB03h
Return: AL = 00h
SeeAlso: AX=DA03h,AX=DB00h,AX=DB02h
--------U-2FDB03-----------------------------
INT 2F U - WINGO.COM - SET ??? FLAG
	AX = DB03h
Return: AX = 0000h
SeeAlso: AX=DB00h"WINGO",AX=DB04h"WINGO",AX=DB05h"WINGO",AX=DB06h"WINGO"
--------U-2FDB04-----------------------------
INT 2F U - WINGO.COM - RESET ??? FLAG
	AX = DB04h
Return: AX = 0000h
SeeAlso: AX=DB00h"WINGO",AX=DB03h"WINGO",AX=DB05h"WINGO",AX=DB06h"WINGO"
--------U-2FDB05-----------------------------
INT 2F U - WINGO.COM - GET ??? FLAG
	AX = DB05h
Return: AX = 0000h
	DX = unknown flag - 0 or 1
Program: WINGO.COM is TSR for starting Windows programs from DOS 
	  prompt (together with companion Windows program 
	  WINSTART.EXE) written by Douglas Boling, contributing editor of
	  PC Magazine
SeeAlso: AX=DB00h"WINGO",AX=DB03h"WINGO",AX=DB04h"WINGO"
--------U-2FDB06-----------------------------
INT 2F U - WINGO.COM - CALL CALLBACK FUNCTION
	AX = DB06h
Return: AX = return value of INT 2F/AX=1685h
Note:	uses Windows service INT 2F/AX=1685h (SWITCH VMs AND CALLBACK) to
	  call the callback function previously set by AX=DB01h
	used for WINGO <-> WINSTART communication
SeeAlso: AX=1685h, AX=DB00h"WINGO",AX=DB01h"WINGO",AX=DB02h"WINGO",
SeeAlso: AX=DB03h"WINGO",AX=DB04h"WINGO",AX=DB05h"WINGO"
--------F-2FDB10-----------------------------
INT 2F - ZyXEL ZFAX v3 - EXECUTE ZFAX MAIN MENU
	AX = DB10h
--------F-2FDB11-----------------------------
INT 2F - ZyXEL ZFAX v3 - SEND FAX
	AX = DB11h
	DS:SI -> filename including path
	DS:BX -> remote FAX number
Return:	AX = status (see #1765)
SeeAlso: AX=DB12h,AX=DB13h,AX=DB14h,AX=DB20h,AX=DB21h

(Table 1765)
Values for ZFAX status:
 00h	OK
 01h	invalid DOS function
 02h	file not found
 03h	path not found
 04h	no file handle available
 05h	access denied by DOS
 06h	invalid handle
 07h	disk full
 10h	printer error
 11h	no graphics font
 12h	no ZFAX font
 20h	DCD dropped while sending
 21h	not ZyXEL modem
 22h	busy
 23h	no response from COM port
 24h	no carrier
 25h	no dial tone
 26h	no answer
 27h	no response
 28h	failed to send FAX
 30h	user aborted
 40h	critical error on disk
 50h	parameter error
--------F-2FDB12-----------------------------
INT 2F - ZyXEL ZFAX v3 - PRINT FAX
	AX = DB12h
	DS:SI -> filename, including path
Return: AX = status
SeeAlso: AX=DB11h,AX=DB13h,AX=DB14h
--------F-2FDB13-----------------------------
INT 2F - ZyXEL ZFAX v3 - CONVERT FAX
	AX = DB13h
	DS:SI -> source filename, including path
	DS:BX -> destination filename, including path
	CX = destination file format
	    00h FAX, 01h PCX, 02h TIFF, 03h PRN
Return: AX = status
SeeAlso: AX=DB11h,AX=DB12h,AX=DB14h,AX=DB22h
--------F-2FDB14-----------------------------
INT 2F - ZyXEL ZFAX v3 - VIEW FAX
	AX = DB14h
	DS:SI -> source filename, including path
Return: AX = status
SeeAlso: AX=DB11h,AX=DB12h,AX=DB14h
--------F-2FDB20-----------------------------
INT 2F - ZyXEL ZFAX v3 - POLL FAX
	AX = DB20h
	DS:SI -> remote FAX number
Return: AX = status
SeeAlso: AX=DB11h,AX=DB21h
--------F-2FDB21-----------------------------
INT 2F - ZyXEL ZFAX v3 - SEND VOICE
	AX = DB21h
	DS:SI -> filename including path
	DS:BX -> remote phone number
Return:	AX = status
SeeAlso: AX=DB11h,AX=DB20h,AX=DB22h,AX=DB23h,AX=DB24h
--------F-2FDB22-----------------------------
INT 2F - ZyXEL ZFAX v3 - CONVERT VOICE FILE
	AX = DB22h
	DS:SI -> source filename, including path
	DS:BX -> destination filename, including path
	CX = destination format
	    00h two-bit ADPCM, 01h three-bit ADPCM, 02h VOC
Return:	AX = status
SeeAlso: AX=DB13h,AX=DB20h,AX=DB21h,AX=DB23h
--------F-2FDB23-----------------------------
INT 2F - ZyXEL ZFAX v3 - RECORD VOICE FILE
	AX = DB23h
	DS:SI -> destination filename, including path
	CX = recording channel (0 = telephone line, 1 = microphone/speaker)
	DX = voice file format
	    00h CELP, 01h two-bit ADPCM, 02h three-bit ADPCM
Return: AX = status
SeeAlso: AX=DB21h,AX=DB22h,AX=DB24h
--------F-2FDB24-----------------------------
INT 2F - ZyXEL ZFAX v3 - PLAY VOICE FILE
	AX = DB24h
	DS:SI -> name of voice file, including path
	CX = playback channel (0 = telephone line, 1 = microphone/speaker)
Return: AX = status
SeeAlso: AX=DB21h,AX=DB22h,AX=DB24h
--------F-2FDB25-----------------------------
INT 2F - ZyXEL ZFAX v3 - ANSWER MODEM WITH VOICE SYSTEM
	AX = DB25h
Return: AX = status
SeeAlso: AX=DB21h,AX=DB22h,AX=DB26h,AX=DB27h,AX=DB28h
--------F-2FDB26-----------------------------
INT 2F - ZyXEL ZFAX v3 - DIAL PHONE
	AX = DB26h
	DS:SI -> remote phone number
Return: AX = status
SeeAlso: AX=DB25h
--------F-2FDB27-----------------------------
INT 2F - ZyXEL ZFAX v3 - RECEIVE FAX - ANSWER MODEM AND SET TO FAX MODE
	AX = DB27h
Return: AX = status
SeeAlso: AX=DB25h,AX=DB28h
--------F-2FDB28-----------------------------
INT 2F - ZyXEL ZFAX v3 - RECEIVE FAX DATA - ANSWER MODEM IN MULTI-AUDIO MODE
	AX = DB28h
Return: AX = status
SeeAlso: AX=DB25h,AX=DB27h,AX=DB31h
--------F-2FDB31-----------------------------
INT 2F - ZyXEL ZFAX v3 - SEND DATA - DIAL NUMBER AND UPLOAD FILE WITH ZMODEM
	AX = DB31h
	DS:SI -> source file name, including path
	DS:BX -> remote data number
Return: AX = status
SeeAlso: AX=DB00h,AX=DB28h
--------F-2FDB40-----------------------------
INT 2F - ZyXEL ZFAX v3 - INTERNAL TERMINAL
	AX = DB40h
Return: AX = status
SeeAlso: AX=DB00h
--------K-2FDC00-----------------------------
INT 2F - GOLD.COM - INSTALLATION CHECK
	AX = DC00h
Return: AL = state
	    00h not installed
		 FFh installed
Program: GOLD is a TSR by Bob Eager which makes the NumLock key return the code
	  for F1; the purpose is to improve Kermit's VTxxx emulation
--------K-2FDC01-----------------------------
INT 2F - GOLD.COM - GET STATE
	AX = DC01h
Return: AL = status
	    00h off
	    01h on
SeeAlso: AX=DC00h,AX=DC02h
--------K-2FDC02-----------------------------
INT 2F - GOLD.COM - SET STATE
	AX = DC02h
	DL = new state
	    00h off
	    01h on
Return: AL = 00h (OK)
SeeAlso: AX=DC01h
--------t-2FDD-------------------------------
INT 2F - CappaCom programs - API
	AH = DDh
	AL = 00h general installation check
	    Return: AL = FFh if any CappaCom programs are resident
	AL = FEh get info
	    Return: ES:BX -> TSR info list (see #1766)
	AL = program identifier
	    BH = function
		FDh get version
		    Return: BX = version
		FFh installation check
		    Return: AL = FFh if installed
				BX = version
				ES = segment of resident code
		others vary by program
Return: AL = status
	    bit 7 set on error
	    AL = 81h unknown function
Note:	CappaCom was originally SoftCom but changed its name due to a trademark
	  conflict
Index:	installation check;SoftCom programs
Index:	installation check;CappaCom programs

Format of CappaCom TSR info list:
Offset	Size	Description	(Table 1766)
 00h  9 BYTEs	blank-padded ASCIZ program name
 09h	BYTE	program ID
 0Ah	WORD	program's PSP segment
 0Ch	WORD	program version (major in high byte)
 0Eh	DWORD	pointer to next item in info list or 0000h:0000h
 12h	BYTE	number of interrupts hooked
 13h  5 BYTEs	interrupt numbers hooked by program
 18h  8 BYTEs	reserved
----------2FDD-------------------------------
INT 2F - MIXFIX.EXE - API
	AH = DDh
	AL = function
	    00h installation check
		Return: AX = 00DDh if installed
			    BX = version (BH = major, BL = minor)
	    41h/61h get From: address
		Return: AX = 0001h
			ES:BX -> ASCIZ 4d address of mail sender ("1:2/3.4")
	    49h/69h get To: address
		Return: AX = 0001h
			ES:BX -> ASCIZ 4d address of recipient ("1:2/3.4")
	    4Ah/6Ah get subject of mail
		Return: AX = 0001h
			ES:BX -> ASCIZ subject of handled mail
	    4Dh/6Dh get mail name
		Return: AX = 0001h
			ES:BX -> ASCIZ full name of current mail file
	    4Eh/6Eh get From: field
		Return: AX = 0001h
			ES:BX -> ASCIZ From: field of mail (mail sender's name)
Program: MIXFIX by "KIV without Co" is a FidoNet mail robot which may execute
	  other programs for mail handling.  The called programs may use the
	  services described here to retrieve information about the mail being
	  handled.
Index: installation check;MIXFIX.EXE
--------d-2FDD--BX7844-----------------------
INT 2F - xDISK v3.32+ - INSTALLATION CHECK
	AH = DDh
	BX = 7844h ('xD')
	CX = 4953h ('IS')
	DX = 4B3Fh ('K?')
	AL = desired drive (01h-1Ah) or 00h to check for xDISK on any drive
	ES:DI -> 25-byte data buffer (see #1767)
Return: AX = DDFFh if installed (on specified drive if AL nonzero on entry)
	   BX = 87BBh
	   DX = B4C0h
	   ES:DI buffer filled
	CX,CF destroyed
SeeAlso: INT 21/AX=4404h"xDISK",INT 21/AX=4405h"xDISK"

Format of xDISK data buffer:
Offset	Size	Description	(Table 1767)
 00h	DWORD	pointer to ASCIZ driver signature "xDISK unit: X"
 04h	BYTE	flag: 01h if disk linked to DOS, 00h if unlinked
 05h	BYTE	flag: 01h if write protected, 00h if not
 06h	BYTE	flag: 01h if root directory full, 00h if not
 07h	BYTE	flag: 01h if free space uncompacted, 00h if compacted
 08h	BYTE	resizing state: 00h not resizable, 01h resized, 80h resizable
 09h	BYTE	flag: 01h inelastic resizable disk, 00h elastic
 0Ah  2 BYTEs	reserved
 0Ch	BYTE	flag: 01h collapsed disk, 00h not collapsed
 0Dh	BYTE	flag: 01h using all EMS, 00h some EMS free
 0Eh	BYTE	flag: 01h password enabled, 00h disabled
 0Fh	BYTE	flag: 01h password audio feedback, 00h no feedback
 10h	BYTE	flag: 01h password video feedback, 00h no feedback
 11h	BYTE	flag: 01h confirm changes, 00h no confirmation
 12h	BYTE	flag: 01h terse display, 00h verbose display
 13h	BYTE	flag: 01h click speaker on disk access, 00h no click
 14h	BYTE	flag: 01h flash icon on disk access, 00h no icon flash
 15h	BYTE	FAT entry size: 00h 12-bit, FFh 16-bit
 16h	WORD	count of open files in RAM disk
 18h	BYTE	unused
--------Q-2FDE00BX4456-----------------------
INT 2F - DESQview v2.26+ External Device Interface - INSTALLATION CHECK
	AX = DE00h
	BX = 4456h ("DV")
	CX = 5844h ("XD")
	DX = 4931h ("I1")
Return: AL = FFh if installed (even if other registers do not match)
	if BX,CX, and DX were as specified on entry,
	    BX = 4845h ("HE")
	    CX = 5245h ("RE")
	    DX = 4456h ("DV")
Range:	AH=C0h to AH=FFh, selected by scanning AH=DEh-FFh, then AH=C0h-DDh
Note:	the XDI handler should not issue any DOS or BIOS calls, nor should it
	  issue DESQview API calls other than those allowed from hardware ints
SeeAlso: AX=DE02h,INT 15/AX=5400h
--------Q-2FDE01-----------------------------
INT 2F - DESQview v2.26+ External Device Interface - DRIVER CUSTOM SUBFUNCTION
	AX = DE01h
	BX = driver ID
	other registers as needed by driver
Notes:	XDI drivers should pass this call through to previous handler if ID
	  does not match
	DESQview never calls this function
--------Q-2FDE01BX4450-----------------------
INT 2F U - Quarterdeck QDPMI.SYS v1.0 - INSTALLATION CHECK
	AX = DE01h
	BX = 4450h ("DP")
	CX = 4D49h ("MI")
	DX = 3039h ("09")
Return: AL = FFh if installed
	    BX = 4D42h ("MB")
	    CX = 4921h ("I!")
	    DX = 8F4Fh
	    ES:DI -> filename of DPMI host overlay
Note:	the installation check consists of testing for the existence of the
	  character device QDPMI$$$
SeeAlso: INT 2F/AX=1687h,INT 31/AX=0000h
Index:	installation check;QDPMI
--------U-2FDE01BX5242-----------------------
INT 2F - DESQview v2.26+ XDI - CUSTOM SUBFUNCTION, Ralf Brown's XDI drivers
	AX = DE01h
	BX = 5242h ("RB")
	CX:DX = program identifier
		656F7000h ("eop",0) for DVeop
Return: AX = 5242h ("RB") if installed
		 ES:BX -> data or entry point (see #1768)
	    CX = version number (CH = major, CL = minor)

(Table 1768)
Call DVeop entry point with:
	ES:DI -> callback address or 0000h:0000h to remove callback
Return: AX = status
	    0000h failed (callback table full or attempted to remove non-
		  existent callback)
	    0001h successful
		ES:DI -> chaining address
	BX,CX,DX destroyed
Notes:	the callback function is called with a simulated interrupt when the
	  DESQview window containing it is closed; it should perform all
	  necessary cleanup and then perform a FAR jump to the chaining address
	  or an IRET if the chaining address is 0000h:0000h
	if the program wishes to remove itself before the window is closed, it
	  should call the DVeop entry point with the previously returned
	  chaining address and ignore the returned chaining address.
--------U-2FDE01BX7474-----------------------
INT 2F - DESQview v2.26+ XDI - CUSTOM SUBFUNCTION, DVTXDI.COM
	AX = DE01h
	BX = 7474h
	CL = function
	    00h installation check
		Return: AL = FFh
	    01h get process handle
		DX = keys on Open Window menu (DL = first, DH = second)
		Return: AX = process handle or 0000h if not running
	    02h (v1.3+) set TMAN handle
		DX = TMAN process handle
	    03h (v1.3+) set open keys to ignore on next CL=01h call
		DX = keys on Open Window menu (DL = first, DH = second)
Return: BX = 4F4Bh ("OK")
	DL destroyed
Note:	DVTXDI is distributed as part of the shareware products DVTree (DOS
	 shell/DESQview process manager) and DVTMAN by Mike Weaver
Index:	installation check;DVTXDI
--------U-2FDE01BX7575-----------------------
INT 2F - DESQview v2.26+ XDI - CUSTOM SUBFUNCTION, DVSIXDI.COM
	AX = DE01h
	BX = 7575h
	CX = function
	    0000h installation check
		Return: AX = 00FFh if installed
	    0001h turn on notification (currently unused)
		Return: AX = 0001h
	    0002h turn off notification (currently unused)
		Return: AX = 0001h
	    0003h get process information
		Return: AX = status
			    0000h failed
			    0001h successful
				BX = last instantaneous time slice
				    in 1/100s (v1.10)
				    in 1/18s (v1.11+)
				CX = number of processes
				DX = number of "(starting)" records (v2.00+)
				SI = number of records in process info array
				      (v2.00+) (always 15 for v1.x)
				ES:DI -> process info array (see #1769,#1770)
	    0004h get version
		Return: AH = major version
			AL = minor version
	    0005h (v1.10+) get time since DESQview started
		Return: DX:AX = 1/100s since DV start (v1.10)
			DX:AX = 1/18s since DV start (v1.11+)
	    0006h (v1.10+) get number of task switches
		Return: DX:AX = total task switches
			CX = task switches in last instantaneous interval
Notes:	DVSIXDI is part of the DVSI (DESQview System Information) package by
	  Daniel J. Bodoh
	for v1.00, function 0003h allocates common memory, which the caller
	  must deallocate after reading the process information; only the
	  currently used records are placed in the buffer
	for v1.10+, function 0003h merely returns a pointer to the internal
	  array of process information; the caller should make a copy of the
	  array while inside a critical section (see INT 15/AX=101Bh).	Only
	  those records with bit 7 of the first byte set are valid.
Index:	installation check;DVSIXDI

Format of DVSIXDI v1.00 information for one process:
Offset	Size	Description	(Table 1769)
 00h	BYTE	flags
		bit 7: process slot is valid
 01h	WORD	offset into DESQVIEW.DVO of program's record if started from
		  Open Windows menu, else undefined
 03h	WORD	Switch Windows window number
 05h	WORD	segment of process handle
 07h	WORD	number of tasks owned by process
 09h	WORD	mapping context of process (see #0306 at INT 15/AX=1016h)
 0Bh	DWORD	hook for other programs

Format of DVSIXDI v1.10-v2.00 information for one process:
Offset	Size	Description	(Table 1770)
 00h	BYTE	process flags (see #1771)
 01h	WORD	Open Window keys
 03h	WORD	Switch Windows number
 05h	WORD	segment of process handle
 07h	WORD	number of tasks for process
 09h	WORD	process mapping context
 0Bh	DWORD	time process started (relative to start of DESQview)
 0Fh	DWORD	time process last got CPU (relative to start of DESQview)
 13h	DWORD	time process last gave up CPU (relative to start of DESQview)
 17h	DWORD	total CPU time since process started
 1Bh	DWORD	CPU time at start of current instantaneous interval
 1Fh	DWORD	CPU time in current instantaneous interval
 23h	DWORD	hook for other programs
Note:	all times are in 1/100s for v1.10, in 1/18s for v1.11+

Bitfields for DVSIXDI process flags:
Bit(s)	Description	(Table 1771)
 7	valid record
 6	(v2.00+) record is allocated; if bit 7 clear, process is "(starting)"
	  and only offsets 01h and 09h are valid
 5	(v2.00+) this app currently owns the CPU
 4	reserved (0)
 3	DESQview system task
 2	reserved (0)
 1	task has keyboard (currently unused)
 0	task swapped out (currently unused)
--------Q-2FDE01BXFFFE-----------------------
INT 2F U - DESQview v2.26+ XDI - DVXMS.DVR - ???
	AX = DE01h
	BX = FFFEh
	CX = 4D47h ("MG")
	DX = 0052h (0,"R")
Return: AL = FFh
	DX = 584Dh
--------Q-2FDE02-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - DV INITIALIZATION COMPLETE
	AX = DE02h
	BX = mapping context of DESQview
	DX = handle of DESQview system task
Note:	driver should pass this call to previous handler after doing its work
SeeAlso: AX=DE03h,AX=DE0Fh,INT 15/AX=5400h
--------Q-2FDE03-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - DV TERMINATION
	AX = DE03h
	BX = mapping context of DESQview
	DX = handle of DESQview system task
Notes:	driver should pass this call to previous handler before doing its work
	DESQview makes this call when it is exiting, but before unhooking any
	  interrupt vectors
SeeAlso: AX=DE02h,AX=DE0Fh,INT 15/AX=5407h
--------Q-2FDE04-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - ADD PROCESS
	AX = DE04h
	BX = mapping context of new process (see #0306 at INT 15/AX=1016h)
	DX = handle of process
Return: nothing
Notes:	XMS XDI handler (installed by default) allocates a 22-byte record
	  (see #1772) from "common" memory to control access to XMS memory
	all DOS, BIOS, and DV API calls are valid in handler
	driver should pass this call to previous handler after processing it
SeeAlso: AX=DE05h,AX=DE06h,INT 15/AX=5401h

Format of XMS XDI structure:
Offset	Size	Description	(Table 1772)
 00h	DWORD	pointer to 10-byte record???
 04h	DWORD	pointer to next XMS XDI structure
 08h	WORD	mapping context
 0Ah	BYTE	???
 0Bh  5 BYTEs	XMS entry point to return for INT 2F/AX=4310h
		(FAR jump to next field)
 10h  6 BYTEs	FAR handler for XMS driver entry point
		(consists of a FAR CALL followed by RETF)
--------Q-2FDE05-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - REMOVE PROCESS
	AX = DE05h
	BX = mapping context of process (see #0306 at INT 15/AX=1016h)
	DX = handle of last task in process
Return: nothing
Notes:	XMS XDI handler releases the structure allocated by AX=DE04h
	driver should pass this call to previous handler before processing it
	all DOS, BIOS, and DV API calls except those generating a task switch
	  are valid in handler
SeeAlso: AX=DE04h,AX=DE07h,INT 15/AX=5402h
--------Q-2FDE06-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - CREATE TASK
	AX = DE06h
	BX = mapping context of process containing task
	DX = handle of new task
Notes:	driver should pass this call to previous handler after processing it
	all DOS, BIOS, and DV API calls are valid in handler
--------Q-2FDE07-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - TERMINATE TASK
	AX = DE07h
	BX = mapping context of process containing task
	DX = handle of task
Notes:	driver should pass this call to previous handler before processing it
	all DOS, BIOS, and DV API calls except those generating a task switch
	  are valid in handler
SeeAlso: AX=DE04h,AX=DE06h,AX=DE10h
--------Q-2FDE08-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - SAVE STATE
	AX = DE08h
	BX = mapping context of task being switched from
	      (see #0306 at INT 15/AX=1016h)
	DX = handle of task being switched from
Notes:	invoked prior to task swap, interrupts, etc
	driver should pass this call to previous handler after processing it
SeeAlso: AX=DE09h,INT 15/AX=5403h,INT 15/AX=DE27h
--------Q-2FDE09-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - RESTORE STATE
	AX = DE09h
	BX = mapping context of task being switched to
			(see #0306 at INT 15/AX=1016h)
	DX = handle of task being switched to
Notes:	state is restored except for interrupts
	driver should pass this call to previous handler before processing it
SeeAlso: AX=DE08h,INT 15/AX=5404h,INT 15/AX=DE27h
--------Q-2FDE0A-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - CHANGE KEYBOARD FOCUS
	AX = DE0Ah
	BX = mapping context of task receiving focus
	DX = handle of running task
Notes:	driver should pass this call to previous handler before processing it
	this call often occurs inside a keyboard interrupt
	DV 2.42 does not provide this call to XDI handlers running inside a
	  window; instead, it directly calls the INT 2F handler which was
	  active at the time DV started
SeeAlso: INT 15/AX=DE26h,INT 15/AX=DE2Fh
--------Q-2FDE0B-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - DVP PROCESSING COMPLETE
	AX = DE0Bh
	BX = mapping context of DESQview system task
	CX = number of system memory paragraphs required for the use of all
	      XDI drivers (DV will add this to system memory in DVP buffer)
	DX = handle of DESQview system task
	SI = mapping context of new process if it starts
	ES:DI -> DVP buffer
Return: CX incremented as needed
Notes:	once DV invokes this function, the DVP buffer contents may be changed
	driver should pass this call to previous handler before processing it
--------Q-2FDE0C-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - SWAP OUT PROCESS
	AX = DE0Ch
	BX = mapping context of task being swapped out
	      (see #0306 at INT 15/AX=1016h)
	DX = handle of DESQview system task
Note:	driver should pass this call to previous handler after processing it
--------Q-2FDE0D-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - SWAP IN PROCESS
	AX = DE0Dh
	BX = mapping context of process just swapped in
	      (see #0306 at INT 15/AX=1016h)
	DX = handle of DESQview system task
Note:	driver should pass this call to previous handler before processing it
--------Q-2FDE0E-----------------------------
INT 2F C - DESQview v2.26+ External Dev Interface - DVP START FAILED
	AX = DE0Eh
	BX = mapping context of DESQview system task
	DX = handle of DESQview system task
	SI = mapping context of failed process (same as for call to AX=DE0Bh)
Note:	driver should pass this call to previous handler after processing it
--------Q-2FDE0F-----------------------------
INT 2F C - DESQview v2.50+ External Dev Interface - INITIALIZE DV
	AX = DE0Fh
Note:	DESQview 2.50+ calls this function just before it completes its
	  initialization.  At the time of the call, DESQview has not yet
	  changed any interrupt vectors
SeeAlso: AX=DE02h
--------Q-2FDE10-----------------------------
INT 2F C - DESQview v2.50+ External Dev Interface - FREE TASK
	AX = DE10h
	BX = mapping context of process (see #0306 at INT 15/AX=1016h)
	DX = task handle of process
Note:	DESQview 2.50+ calls this function before it frees the task; it is
	  similar to AX=DE07h but allows the XDI handler to make calls which
	  cause context switches
SeeAlso: AX=DE06h,AX=DE07h
--------c-2FDF00-----------------------------
INT 2F - HyperWare programs - INSTALLATION CHECK
	AX = DF00h
	BX = product code (see #1773)
	CX = 0000h
	DX = 0000h
Return: AL = status
	    00h not installed
	    FFh multiplex number in use
		CX = 5948h ('YH') if selected product installed
		---HyperDisk---
		BX = code segment of resident portion
		DX = HyperDisk local data version
Program: HyperDisk is a shareware disk cache by HyperWare (Roger Cross)
Range:	AH=C0h to AH=FFh, selected by scanning AH=DFh, then AH=C0h-FFh
SeeAlso: INT 13/AX=8EEDh
Index:	installation check;HyperDisk|installation check;HyperStb
Index:	installation check;HyperKey|installation check;HyperScreen
Index:	HyperDisk;installation check|HyperStb;installation check
Index:	HyperKey;installation check|HyperScreen;installation check

(Table 1773)
Values for HyperWare product code:
 4248h	('BH') HyperStb
 4448h	('DH') HyperDisk v4.20+
 4B48h	('KH') HyperKey
 5348h	('SH') HyperScreen
--------Q-2FDF00BX5445-----------------------
INT 2F U - Quarterdeck TELTSR.COM - INSTALLATION CHECK
	AX = DF00h
	BX = 5445h ('TE')
	CX = 4C54h ('LT')
	DX = 5352h ('SR')
Return: BX = 5454h ('TT') if installed
	CX = 494Eh ('IN') if installed
	DX = 5454h ('ST') if installed
Program: TELTSR is a Telnet TSR included with Quarterdeck's DESQview/X v2.00
	  which provides an INT 14h interface to the network
Range:	AH=DEh to AH=FFh and AH=C0h to AH=DDh, selected by scanning
SeeAlso: AX=DF01h"TELTSR",AX=DF02h"TELTSR",INT 14/AH=56h
--------N-2FDF01BX0000-----------------------
INT 2F U - MSG.COM - INSTALLATION CHECK
	AX = DF01h
	BX = 0000h
Return: AX = FDFFh if installed
	   BX = segment of resident code
Program: MSG.COM is a TSR for intercepting incoming Novell broadcast 
	  messages written by Gary Dobbins (Dobbins@Arizona.Edu)
--------c-2FDF01BX4448-----------------------
INT 2F - HyperDisk v4.50+ - GET CURRENT CACHE STATE
	AX = DF01h
	BX = 4448h ('DH')
Return: AX = 0000h if function supported
	    BX = number of cache buffers in use
	    CX = number of cache buffers which have been modified
	    DL = caching flags (see #1774)
Range:	AH=C0h to AH=FFh, selected by scanning AH=DFh, then AH=C0h-FFh
SeeAlso: AX=DF00h,AX=DF02h

Bitfields for HyperDisk caching flags:
Bit(s)	Description	(Table 1774)
 0	staged writes enabled for floppy disks
 1	staged writes enabled for hard disks
 2	writes verified on floppy disks
 3	writes verified on hard disks
 4	reserved (0)
 5	reserved (0)
 6	floppy caching enabled
 7	all caching functions enabled
--------Q-2FDF01-----------------------------
INT 2F U - Quarterdeck TELTSR.COM - CLOSE CONNECTION
	AX = DF01h
Return: nothing???
Note:	invokes the DESQview/X socket API (see INT 15/AX=DE2Eh) function 0006h
	  to close the socket corresponding to the file handle set with
	  AX=DF02h; NOP if no file handle was ever set
SeeAlso: AX=DF00h"TELTSR",AX=DF02h"TELTSR"
--------c-2FDF02BX4448-----------------------
INT 2F - HyperDisk v4.50+ - SET CACHE STATE
	AX = DF02h
	BX = 4448h ('DH')
	DL = new caching flags (see #1774)
Return: AX = 0000h if supported
	    BX = number of cache buffers in use
	    CX = number of cache buffers which have been modified
	    DL = previous caching flags (see #1774)
Program: HyperDisk is a shareware disk cache by HyperWare (Roger Cross)
Range:	AH=C0h to AH=FFh, selected by scanning AH=DFh, then AH=C0h-FFh
SeeAlso: AX=DF00h,AX=DF01h
--------Q-2FDF02-----------------------------
INT 2F U - Quarterdeck TELTSR.COM - OPEN CONNECTION
	AX = DF02h
	BX = file handle for connection's socket
Return: AX = status
	    0000h successful
	    FFFFh no more room in TELTSR's JFT
Program: TELTSR is a Telnet TSR included with Quarterdeck's DESQview/X v2.00
Notes:	the indicated file handle becomes owned by TELTSR, and is closed in
	  the caller's JFT
	multiple calls to this function will override the previous assignment
	  without closing the previous file; use AX=DF01h before further calls
SeeAlso: AX=DF00h"TELTSR",AX=DF01h"TELTSR"
--------U-2FE000-----------------------------
INT 2F - SETDRVER.COM v2.10+ - INSTALLATION CHECK
	AX = E000h
Return: AX = 4A52h ("JR") if present
Program: SETDRVER is a public domain TSR by Jacob Rieper which sets the
	  apparent DOS version analogously to MS-DOS SETVER
Note:	this installation check differs from the usual one of returning AL=FFh
SeeAlso: AX=E001h,INT 21/AH=52h
--------K-2FE000DX5354-----------------------
INT 2F - StuffIt v3.21+ - INSTALLATION CHECK
	AX = E000h
	DX = 5354h ("ST")
Return: AL = FFh if installed
	    BX = version (BH = major, BL = BCD minor)
	    DX = segment of resident code
Program: StuffIt is a freeware delayed keyboard stuffer by Terje Mathisen
--------U-2FE001-----------------------------
INT 2F - SETDRVER.COM v2.10+ - GET SETDRVER VERSION
	AX = E001h
Return: AH = major version
	AL = minor version
SeeAlso: AX=E000h
--------U-2FE002-----------------------------
INT 2F - SETDRVER.COM v2.10+ - GET ORIGINAL DOS VERSION INFO
	AX = E002h
Return: AL = FFh if successful
	    BH = major DOS version
	    BL = minor DOS version
	    CH = DOS version flag
	    CL = OEM number
	    DH = major DR-DOS version number (FFh if unknown)
	    DL = minor DR-DOS version number (FFh if unknown)
SeeAlso: AX=E003h,AX=E007h,INT 21/AH=30h
--------U-2FE003-----------------------------
INT 2F - SETDRVER.COM v2.10+ - RESET INTERNAL VARIABLES
	AX = E003h
	BH = new major DOS version
	BL = new minor DOS version
	CH = new DOS version flag
	CL = new DOS revision number
	DH = new OEM number
SeeAlso: AX=E002h
--------U-2FE004-----------------------------
INT 2F - SETDRVER.COM v2.10+ - ENABLE TSR
	AX = E004h
Return: AL = FFh if successful
SeeAlso: AX=E000h,AX=E005h,AX=E006h
--------U-2FE005-----------------------------
INT 2F - SETDRVER.COM v2.10+ - DISABLE TSR
	AX = E005h
Return: AL = FFh if successful
SeeAlso: AX=E000h,AX=E004h,AX=E006h
--------U-2FE006-----------------------------
INT 2F - SETDRVER.COM v2.10+ - GET TSR STATUS
	AX = E006h
Return: AL = FFh if successful
	    BL = status
		01h resident and active
		02h resident and inactive
--------U-2FE007-----------------------------
INT 2F - SETDRVER.COM v2.10+ - GET TaskMAX STATUS AT INSTALLATION
	AX = E007h
Return: AL = FFh if successful
		 BL = status
		00h if TaskMAX not loaded before SETDRVER
		FFh if TaskMAX was loaded before SETDRVER
SeeAlso: AX=E003h
--------U-2FE0-------------------------------
INT 2F - SETDRVER.COM - RESERVED FOR FUTURE USE
	AH = E0h
	AL = 08h-10h
--------K-2FE100-----------------------------
INT 2F - Phantom2 v1.1+ - INSTALLATION CHECK
	AX = E100h
Return: AX = 0001h if installed
	    DS:SI -> ASCIZ hotkey name
	    DS:DI -> ASCIZ recording filename
Program: Phantom of the Keyboard II is a shareware keystroke recorder/replayer
	  by P2 Enterprises
SeeAlso: AX=E101h,AX=E102h,AX=E103h,AX=E300h
Index:	hotkeys;Phantom2
--------K-2FE101-----------------------------
INT 2F - Phantom2 v1.1+ - FUNCTION REQUEST
	AX = E101h
	BX = function mask (see #1775)
	CX = code for hotkey (as returned by INT 16/AH=00h) if BX bit 6 set
	DS:DX -> ASCIZ filespec if BX bit 7 set
SeeAlso: AX=E100h
Index:	hotkeys;Phantom2

Bitfields for Phantom2 function mask:
Bit(s)	Description	(Table 1775)
 0	record
 1	play
 2	QuickPlay
 3	loop
 4	mode display toggle
 5	sound toggle
 6	set hotkey
 7	set filespec
--------K-2FE102-----------------------------
INT 2F - Phantom2 v1.1+ - UNINSTALL
	AX = E102h
Return: AX = status
	    0001h removal successful
	    0002h not installed as TSR
	    FFFFh disabled but not removed
SeeAlso: AX=E100h
--------K-2FE103-----------------------------
INT 2F - Phantom2 v2.8 - SET ??? FLAG
	AX = E103h
Return: AX = 0001h
SeeAlso: AX=E100h
--------y-2FE200-----------------------------
INT 2F - SecureDevice - LOGIN TO DRIVE
	AX = E200h
	DL = drive number (0 = A:)
	DS:SI -> 104-byte key
Return: AL = status
	    00h unable to determine key's validity
	    01h key is valid
	    FFh key is invalid
Program: SecureDevice is a copylefted device driver by Max Loewenthal and
	  Arthur Helwig which turns one or more disk files into encrypted
	  logical drives
SeeAlso: AX=E201h,AX=E203h,AX=E209h
--------y-2FE201-----------------------------
INT 2F - SecureDevice - GET INFORMATION
	AX = E201h
	DX = driver index (0000h = first loaded)
Return: AL = number of volumes handled by driver
	DL = drive number of first volume (00h = A:)
SeeAlso: AX=E200h,AX=E203h,AX=E209h
--------y-2FE203-----------------------------
INT 2F - SecureDevice - DESTROY PASSWORD (LOGOUT FROM DRIVE)
	AX = E203h
	DL = drive number (00h = A:) or FFh for all drives
Return: nothing
SeeAlso: AX=E200h,AX=E209h
--------y-2FE209DX0000-----------------------
INT 2F - SecureDevice - INSTALLATION CHECK
	AX = E209h
	DX = 0000h
Return: AX = 1DEAh if installed
	    DX = number of drivers installed
--------K-2FE300-----------------------------
INT 2F - ANARKEY.COM - INSTALLATION CHECK
	AX = E300h
Return: AL = state
	    00h not installed
	    FEh if installed but suspended (v3.0+)
	    FFh installed
Program: ANARKEY.COM is a commandline recall program by Steven Calwas
Range:	AH=C0h to AH=FFh, selected by commandline switch
SeeAlso: AX=E100h,AX=E301h,AX=E302h,AX=E303h,AX=E304h,AX=E305h,AX=E306h
SeeAlso: AX=E307h,INT 66"Newkey"
--------V-2FE300-----------------------------
INT 2F - Blank - INSTALLATION CHECK
	AX = E300h
Return: AL = FFh if installed
	    ES = resident code segment
Program: Blank is a shareware screen blanker by Yonah Schmeidler
Note:	AH=E3h is the default, which may be reconfigured by the installation
	  program in the registered version
SeeAlso: AH=93h,AX=C050h,INT 14/AX=AA01h
Index:	screen saver;Blank
--------K-2FE301-----------------------------
INT 2F U - ANARKEY.COM v2+ - GET ???
	AX = E301h
Return: DX:BX -> ??? (see #1776,#1777)
SeeAlso: AX=E300h

Format of returned data structure for ANARKEY v2.0:
Offset	Size	Description	(Table 1776)
 -7   7 BYTEs	signature ('ANARKEY')
 00h	WORD	??? (I see 0001h in v2.0)
 02h	WORD	??? (I see 0001h in v2.0)
 04h	WORD	??? (I see 0 in v2.0)
 06h	WORD	PSP segment of next program loaded

Format of returned data structure for ANARKEY v3+:
Offset	Size	Description	(Table 1777)
 -1	BYTE	multiplex number
 00h	WORD	??? (I see 0001h in v3.0-4.0)
 02h	WORD	??? (I see 0001h in v3.0-4.0)
 04h	BYTE	??? (I see 0 in v3.0-4.0)
 05h	WORD	PSP segment of next program loaded
--------K-2FE302-----------------------------
INT 2F U - ANARKEY.COM v3+ - ???
	AX = E302h
	BL = ???
Return: ???
SeeAlso: AX=E300h
--------K-2FE303-----------------------------
INT 2F U - ANARKEY.COM v3+ - ANARKMD API
	AX = E303h
	BL = function
	    01h toggle insert mode
	    02h display contents of history buffer
	    03h write history buffer to file
		ES:DX -> file name
		 04h clear history buffer
	    05h undefine all aliases
	    06h show aliases
	    07h list programs using Unix switchar
	    08h jump to bottom of history buffer
	    09h (v4.0) add string to history buffer
		ES:DX -> ASCIZ string
	    0Ah (v4.0) ???
		ES:DX -> ???
	    0Bh (v4.0) copy string to edit buffer for use as next input line
		ES:DX -> ASCIZ string
	    0Ch (v4.0) ???
	    0Dh (v4.0) copy ??? to ???
	    0Eh (v4.0) ???
	    0Fh (v4.0) ???
	    10h (v4.0) set ??? flag
	    11h (v4.0) display error message about running in EMS under Windows
Return: ???
SeeAlso: AX=E300h
--------K-2FE304-----------------------------
INT 2F U - ANARKEY.COM v2+ - ???
	AX = E304h
	BL = ???
Return: ???
SeeAlso: AX=E300h
--------K-2FE305-----------------------------
INT 2F U - ANARKEY.COM v3+ - ENABLE/SUSPEND ANARKEY
	AX = E305h
	BL = new state
	    01h suspended
	    00h enabled
SeeAlso: AX=E300h
--------K-2FE306-----------------------------
INT 2F U - ANARKEY.COM v4.0 - GET ???
	AX = E306h
Return: AX = ???
SeeAlso: AX=E300h
--------K-2FE307-----------------------------
INT 2F U - ANARKEY.COM v4.0 - GET ???
	AX = E307h
Return: AX = ???
	BL = ???
SeeAlso: AX=E300h
--------l-2FE44D-----------------------------
INT 2F - NDOS - API
	AX = E44Dh
Program: NDOS is a version of 4DOS licensed to Symantec for inclusion in the
	  Norton Utilities
Note:	as NDOS is a licensed version of 4DOS v3.03, the API is identical to
	  that for 4DOS, except that AH=E4h instead of D4h and the installation
	  check returns AX=44EEh instead of AX=44DDh
SeeAlso: AX=D44Dh,AX=E44Eh
--------l-2FE44E-----------------------------
INT 2F C - NDOS - AWAITING USER INPUT
	AX = E44Eh
	BX = condition
	    0000h NDOS is ready to display prompt
	    0001h NDOS has displayed the prompt, about to accept user input
Return: handler must preserve SI, DI, BP, SP, DS, ES, and SS
SeeAlso: AX=E44Dh
--------K-2FE44FBX0000-----------------------
INT 2F - NDOS v4.0+ - KSTACK.COM - INSTALLATION CHECK
	AX = E44Fh
	BX = 0000h
Return: AX = 44EEh if installed
Program: NDOS is a version of 4DOS licensed to Symantec for inclusion in the
	  Norton Utilities
Note:	this function is also supported by ANSIPLUS v3.01+ and K3PLUS v6.20+,
	  which emulate the 4DOS and NDOS keystack
SeeAlso: AX=D44Fh/BX=0000h,AX=E44Fh/BX=0001h
--------K-2FE44FBX0001-----------------------
INT 2F - NDOS v4.0+ - KSTACK.COM - PLACE KEYSTROKES INTO KEYSTACK
	AX = E44Fh
	BX = 0001h
	CX = number of keystrokes (01h-FFh)
	DS:DX -> keystroke list (one word per keystroke)
Return: AX = status
	    0000h successful
	    nonzero failed
	BX,CX,DX destroyed
Notes:	the keystrokes are the exact values to return from subsequent calls to
	  INT 16 with AH=00h,01h,10h, or 11h, with the following exceptions:
		0000h causes subfunctions 01h and 11h to indicate an empty
		      keyboard buffer
		FFFFh is followed by a word indicating the number of clock
		      ticks to delay before the next faked keystroke
	v4.00 KSTACK overwrites any unread keystrokes from the previous
	  invocation, and does not range-check CX; it will overwrite memory
	  following the resident portion if CX is greater than 100h.
	this function is also supported by ANSIPLUS v3.01+ and K3PLUS v6.20+,
	  which emulate the 4DOS and NDOS keystack
SeeAlso: AX=E44Fh/BX=0000h,INT 16/AH=00h,INT 21/AX=4403h
--------E-2FED00-----------------------------
INT 2F - Phar Lap DOS EXTENDERS - INSTALLATION CHECK
	AX = ED00h
	BL = DOS extender ID (see #1778)
Return: AL = status
	    00h not installed
	    FFh installed
		SI = 5048h ("PH")
		DI = 4152h ("AR")
		CH = major version number
		CL = minor version number
		DX = flags
		    bit 0: running under DPMI
		    bit 1: running under Phar Lap VMM
		if running under DPMI:
		    BX = DPMI version (BH = major, BL = minor)
SeeAlso: AH=A1h,AX=F100h,AX=FBA1h

(Table 1778)
Values for Phar Lap DOS extender ID:
 01h	286dosx v1.3+ (Software Development Kit)
 02h	286dosx v1.3+ (Run-Time Kit)
 03h	386dosx v4.0+ (SDK)
 04h	386dosx v4.0+ (RTK)
--------E-2FED03-----------------------------
INT 2F R - Phar Lap 386/DOS-Extender v4.1 - GET EXTENDER ENTRY POINT
	AX = ED03h
	CX = real-mode code segment
	DX = real-mode data segment
Return: CF clear if successful
	    CX = protected-mode code segment selector
	    DX = protected-mode data segment selector
	    ES:DI -> real-mode entry point for calling protected-mode functions
		      (see INT 21/AX=250Dh)
	CF set on error
	    AX = error code
		0008h unable to allocate LDT descriptors
--------E-2FED10BL05-------------------------
INT 2F - Pharlap DOS Extender - ???
	AX = ED10h
	BL = 05h
	ES:SI -> ??? structure
Return:	AX = ???
	SI = ???
	DI = ???
SeeAlso: AX=ED00h,AX=ED11h
--------E-2FED11BL05-------------------------
INT 2F - Pharlap DOS Extender - FATAL EXIT TO REAL MODE ???
	AX = ED11h
	BL = 05h
	CX = ???
	DX = ???
	ES:SI -> ??? structure
	SS:SP = new stack ???
Return: ???
Note:	called immediately prior to terminating program with INT 21/AX=4CFFh
SeeAlso: AX=ED00h,AX=ED10h
--------K-2FED58-----------------------------
INT 2F U - K5.COM - INSTALLATION CHECK
	AX = ED58h
Return: AX = 000Dh if installed
	    BX = 9999h if driver active
	    ???
Program: K5 is an extended keyboard driver by Martin Gerdes, based on his K3
SeeAlso: INT 16/AX=AF20h
--------E-2FED80-----------------------------
INT 2F - Phar Lap 286|DOS Extender Lite v2.5 - ???
	AX = ED80h
	BL = DOS extender ID (see #1778)
	SI = 5048h ("PH")
	DI = 4152h ("AR")
	???
Return: ???
--------y-2FEE00-----------------------------
INT 2F - GRIDLOC.EXE - INSTALLATION CHECK
	AX = EE00h
Return: AL = FFh if installed
Program: GRIDLOC is a PC security program by Intelligent Security Systems, Inc.
SeeAlso: INT 21/AH=40h"NB.SYS"
--------U-2FEE00-----------------------------
INT 2F - XVIEW - INSTALLATION CHECK
	AX = EE00h
Return: AX = 00FFh if installed
Program: XVIEW is a hypertext viewer by Flambeaux Software, Inc.
--------N-2FEE00-----------------------------
INT 2F - WEB v4.02 - INSTALLATION CHECK
	AX = EE00h
Return: AL = status
	    00h not installed
	    FFh installed
Program: WEB is an IPX-based peer-to-peer network by Webcorp.
SeeAlso: AH=EEh"WEB",AX=EEF0h
--------U-2FEE01-----------------------------
INT 2F - XVIEW - POP UP GIVING TOPIC SEARCH KEYWORD
	AX = EE01h
	DS:DX -> ASCIZ string containing case-insensitive keyword to look up
Return: AX = status (see #1779)
Note:	the specified keyword should be a hyperlink in the _IndexPage of some
	  database; the current database is searched first
SeeAlso: AX=EE00h"XVIEW",AX=EE02h,AX=EE03h,AX=EE04h,AX=EE06h

(Table 1779)
Values for XVIEW function status:
 0000h	successful
 00F1h	unknown subfunction
 00F2h	unable to pop up
--------U-2FEE02-----------------------------
INT 2F - XVIEW - POP UP GIVING A PAGE NUMBER
	AX = EE02h
	DX = physical page number or anchor page number (see #1780)
Return: AX = status (see #1779)
Note:	physical page numbers are assigned by the hypertext compiler, and
	  will change if a page is inserted in the middle
SeeAlso: AX=EE00h"XVIEW",AX=EE01h,AX=EE05h,AX=EE06h

(Table 1780)
Values for XVIEW anchor page number:
 FFEAh	_Credits
 FFECh	_SearchTopics
 FFEDh	_SearchText
 FFF0h	_ManualList
 FFF5h	_HelpOnHelp
 FFF8h	_HomePage
 FFF9h	_IndexPage
--------U-2FEE03-----------------------------
INT 2F - XVIEW - POP UP GIVING FILENAME AND SEARCH TOPIC OR PAGE NUMBER
	AX = EE03h
	DS:DX -> data packet (see #1781)
Return: AX = status (see #1779)
SeeAlso: AX=EE00h"XVIEW",AX=EE01h,AX=EE02h,AX=EE06h

Format of XVIEW data packet:
Offset	Size	Description	(Table 1781)
 00h	DWORD	-> ASCIZ database filespec (0000h:0000h for current database)
 04h	DWORD	-> ASCIZ text to look up or 0000h:0000h
 08h	WORD	page number (0000h if keyword used)
 0Ah  6 BYTEs	reserved
--------U-2FEE04-----------------------------
INT 2F - XVIEW - POP UP AND READ SCREEN FOR SEARCH TOPIC KEYWORD
	AX = EE04h
Return: AX = status (see #1779)
Note:	equivalent to the action taken when the user presses the Alt-L hotkey
SeeAlso: AX=EE00h"XVIEW",AX=EE01h,AX=EE03h,AX=EE06h
--------U-2FEE05-----------------------------
INT 2F - XVIEW - POP UP TO MOST-RECENTLY VIEWED PAGE
	AX = EE05h
Return: AX = status (see #1779)
Note:	equivalent to the action taken when the user presses the Alt-H hotkey
SeeAlso: AX=EE00h"XVIEW",AX=EE02h,AX=EE06h
--------U-2FEE06-----------------------------
INT 2F - XVIEW - WAIT FOR POP-DOWN AND GET EXIT CODE
	AX = EE06h
Return: AX = status (see also AX=EE01h)
	    0001h specified filename is not an xText database
	    0002h no databases found
	    0003h bad data in file
	    0004h memory shortage
	    0005h unable to open the requested file
	    0007h invalid page number for file
Note:	although this call is not required, the exit code can alert the
	  caller to problems; if the call is not made, the program should
	  enforce a delay of about 1/2 second to allow the viewer to pop up,
	  and should not get keyboard input or attempt disk accesses during
	  the delay
SeeAlso: AX=EE00h"XVIEW",AX=EE01h,AX=EE02h,AX=EE03h,AX=EE04h,AX=EE05h
--------N-2FEE-------------------------------
INT 2F - WEB v4.02 - WEB MODULE INSTALLATION CHECK
	AH = EEh
	AL = module ID (see #1782)
Return: AX = 0000h if installed
	    ES:DI -> far entry point for module-specific API calls
		  (see #1783,#1784,#1785,#1786,#1787)
Program: WEB is an IPX-based peer-to-peer network by Webcorp.
SeeAlso: AX=EE00h"WEB"

(Table 1782)
Values for WEB module ID:
 10h	server module (SERVER.EXE)
 20h	client module (CLIENT.EXE)
 30h	mail module (MAIL.EXE)
 40h	spooler (PCSPOOL.EXE)
 50h	kernel module (KERNEL.EXE)
 60h	SAP module (KERNEL.EXE)
 70h	resident station manager (SM.EXE)
 90h	router module (ROUTER.EXE)

(Table 1783)
Call server module entry point with:
	BX = function
	    0000h remove server module
		Return: AX = status (0000h if successful, else WEB error code)
	    0001h create SYSINFO file
		Note:	the SYSINFO file is used by the station manager when
			  displaying info for a particular station
	    0002h get server object table
		Return: CX = number of server objects
			ES:DI -> server object table
		Note:	server objects include drives and devices that the
			  server module controls
	    0003h get server variables
		Return: ES:DI -> server variables

(Table 1784)
Call client module entry point with:
	BX = function
	    0000h remove client module
		Return: AX = status (0000h if successful, else WEB error code)
		 0001h decrement client-only flag
	    0002h increment client-only flag
	    0005h set device capture
		Note:	decrements DeviceOutput flag, telling the spooler that
			  it may trap device output again
	    0006h clear device capture
		Note:	increments DeviceOutput flag, telling the spooler that
			  it should not trap device output (this is used
			  internally by the spooler to prevent it from trapping
			  its own output)
	    0007h get client debug pointer
		Return: ES:DI -> client debug data structure (see #1788)
	    0008h get root drive
		Return: AL = WEB startup drive
	    0009h get maximum possible drive/device redirections
		Return: AL = maximum drive redirections
			CH = maximum LPTx redirections
			CL = maximum COMx redirections
	    000Ah suspend client
		Return: AX = previous value of Suspend flag
	    000Bh resume client
		Return: AX = previous value of Suspend flag
	    000Ch get instance data
		CX = maximum number of structures in array
		ES:DI -> buffer for array of WIN_INSTANCE_DATA structures
			  (see #1789)
		Return: CX = number of structures actually returned
		Note:	used internally by WEB4WIN

(Table 1785)
Call mail module entry point with:
	BX = function
	    0000h remove mail module
		Return: AX = status (0000h successful, else WEB error code)
	    0001h set mail poll
		Note:	schedules the WEB mail module
	    0002h set mail notify
		Note:	sets the Notify flag, which determines whether the
			  user will be notified when mail is received
	    0003h clear mail notify
		Note:	clears the Notify flag, which determines whether the
			  user will be notified when mail is received
	    0004h check whether new mail has arrived
		Return: AL = new mail status
			    00h no new mail since last call
			    else new mail has arrived
		Note:	also clears the new-mail flag after retrieving it
	    0005h send notify
		ES:DI -> name of WEB user to be notified
	    0006h get post office
		Return: ES:DI -> full network path of Post Office subdirectory

(Table 1786)
Call spooler entry point with:
	BX = function
	    0000h remove PCSpool module
		Return: AX = status (0000h successful, else WEB error code)
	    0001h set spooler poll
		Note:	schedules the WEB spooler
	    0002h check spooler changed
		Return:	AX = 0000h
		Note:	this call is a NOP in current versions of WEB

(Table 1787)
Call kernel entry point with:
	BX = function
	    0000h remove kernel module
		Return: AX = status (0000h successful, else WEB error code)
	    0001h set kernel ^S filter
		DL = new state (00h don't filter ^S, nonzero do filter)
	    0002h get kernel data area
		Return: ES:DI -> kernel data area
	    0003h display dialog box
		CL = dialog box type
		    00h password
		    01h E-Note received notification
		    02h Novell login
		    03h general notification
		DL = number of rows to display
		ES:SI -> array of far pointers to rows to be displayed
		ES:DI -> Pascal-style input buffer
		Return: AX = status (0000h successful, else error code)
	    0004h kernel service events
	    0005h get kernel's in-critical-section flag
		Return: ES:DI -> kernel InCriticalSection flag
	    0006h schedule DOS event
		AL = directive
		    00h do not ignore WEB ExtraBusy flag
		    01h ignore ExtraBusy flag
		    02h (WEB4WIN) check that current Windows VM is foregrnd VM
		ES:SI -> WEB AES Event Control Block (ECB) (see #1790)
		Notes:	the WEB Asynchronous Event Scheduler is similar to the
			  one used by IPX; this call schedules a special ECB
			  to be executed at a later time.  Unlike IPX ECBs,
			  the timeout must be set explicitly by the caller
			this function also calls function 0004h
	    0007h check busy
		AL = directive
		    00h do not ignore WEB ExtraBusy flag
		    01h ignore ExtraBusy flag
		    02h (WEB4WIN) check that current Windows VM is foregrnd VM
		Return: AX = status (0000h not busy, else busy)
	    0008h set keyboard intercept
		Note:	currently a NOP which returns immediately
	    0009h get keyboard intercept
		Note:	currently a NOP which returns immediately
	    000Ah get dialog flags
		Return: ES:DI -> kernel dialog flags (see #1791)
	    000Bh get network path
		Return: ES:DI -> fully-qualified network path of file where
				the screen is stored on Dialog calls
	    000Ch kernel alternate dialog
		CL = dialog box type
		    00h password
		    01h E-Note received notification
			 02h Novell login
		    03h general notification
		DL = number of rows to display
		ES:SI -> array of far pointers to rows to be displayed
		ES:DI -> Pascal-style input buffer
		Return: AX = status (0000h successful, else error code)
		Note:	this function is identical to function 0003h except
			  that it does not notify WEB4WIN of the impending
			  dialog request
	    000Dh get machine/operating system type
		Return: AX = machine/operating system type
			    01h IBM PC, MS-DOS
			    02h IBM PC, DOSV (Japanese)
			    03h NEC PC-9800, JDOS (Japanese)
			    04h IBM PC, Korean DBC DOS

Format of client debug data structure:
Offset	Size	Description	(Table 1788)
 00h	WORD	total files
 02h	WORD	files free
 04h	WORD	no files
 06h	WORD	minimum files
 08h	WORD	total FCBs
 0Ah	WORD	total safe FCBs
 0Ch	WORD	FCBs in use
 0Eh	WORD	wrong FCB
 10h	WORD	compressed
 12h	WORD	retransmits

Format of WIN_INSTANCE_DATA structure:
Offset	Size	Description	(Table 1789)
 00h	DWORD	real-mode pointer to data to be instanced
 04h	WORD	size of data to be instanced

Format of WEB AES Event Control Block:
Offset	Size	Description	(Table 1790)
 00h	DWORD	link address
 04h	WORD	ESR address
 08h	BYTE	InUse flag
 09h	BYTE	completion code
 0Ah  3 BYTEs	reserved
 0Dh	WORD	timeout
 0Fh	BYTE	IgnoreExtra flag
 10h	WORD	PSP
 12h	DWORD	DTA
 16h	WORD	AX value for DOS critical information
 18h	WORD	BX value for DOS critical information
 1Ah	WORD	CX value for DOS critical information
 1Ch	WORD	DX value for DOS critical information

(Table 1791)
Values for kernel dialog flags:
 01h	dialog will timeout
 02h	display stars instead of entered keystrokes
--------N-2FEEF0-----------------------------
INT 2F - WEB v4.02 - WEB GENERAL NOTIFICATION
	AX = EEF0h
	BX = notification function ID (see #1792)
Return: varies by notification function
Program: WEB is an IPX-based peer-to-peer network by Webcorp.
Note:	the notification functions are used internally by WEB modules to notify
	  other modules and external programs of actions or event, and should
	  never be called by an application
SeeAlso: AX=EE00h"WEB"

(Table 1792)
Values for WEB Notification Function ID:
 00h	node added
 01h	node deleted
 02h	dial attempt
 03h	dial failed
 04h	file close
 05h	close connection
 07h	check Windows mode
 20h	link up
 21h	link down
--------K-2FF000-----------------------------
INT 2F U - 4MAP - INSTALLATION CHECK
	AX = F000h
Return: AX = 00FFh
Program: 4MAP is a keybinding program for 4DOS (see AX=D44Dh) by Ho-Ping Tseng
Note:	returns AX=00FFh for any value of AL not listed here
SeeAlso: AX=D44Dh,AX=F001h,AX=F002h
--------K-2FF001-----------------------------
INT 2F U - 4MAP - GET KEY MAPPINGS
	AX = F001h
Return: ES:BX -> key mappings
SeeAlso: AX=F000h
--------K-2FF002-----------------------------
INT 2F U - 4MAP - INSERT CHARACTER INTO ???
	AX = F002h
	BL = character to insert
Return: AX = status
	    0000h successful
	    0001h buffer full
SeeAlso: AX=F000h,AX=F003h
--------K-2FF003-----------------------------
INT 2F U - 4MAP - INSERT CHARACTER INTO ???
	AX = F003h
	BL = character to insert
Return: AX = status
	    0000h successful
	    0001h buffer full
Program: 4MAP is a keybinding program for 4DOS (see AX=D44Dh) by Ho-Ping Tseng
SeeAlso: AX=F000h,AX=F002h
--------m-2FF1-------------------------------
INT 2F U - MIN-MEM v2.11 - INSTALLATION CHECK
	AH = F1h
	AL <> F1h
Return: AL = F1h if installed
Program: MIN-MEM is a shareware TSR manager by Biologic which permits up to 24
	  popup TSRs to be loaded but swapped out to disk, EMS, or XMS.	 One
	  TSR at a time is brought back into memory at the user's request.
--------E-2FF100-----------------------------
INT 2F - DOS EXTENDER INSTALLATION CHECK
	AX = F100h
Return: AL = FFh if DOS extender present
	    SI = 444Fh ("DO")
	    DI = 5358h ("SX")
Note:	supported or soon to be supported by Phar Lap, Rational, Ergo, and IGC
SeeAlso: AH=A1h,AX=ED00h,AX=FBA1h/BX=0081h,INT 15/AX=BF02h
--------W-2FF200-----------------------------
INT 2F - WINX - INSTALLATION CHECK
	AX = F200h
Return: AX = 00FFh if installed
Program: WINX is a DOS/Windows utilities by Al Williams which can be used to
	  launch Windows applications from a DOS Box; it was published in
	  "DOS and Windows Protected Mode-Programming with DOS Extenders"
	  (Addison-Wesley) and should not be confused with the Windows driver
	  of the same name which is part of the DESQview/X package
--------W-2FF201-----------------------------
INT 2F - WINX - RETURN ADDRESS OF SERVER BUFFER
	AX = F201h
Return: AX = status
	    FFFFh if WINX is busy processing a different request
	    0000h if successful
		BX:CX = address of server buffer (see #1793)

Format of WINX server buffer:
Offset	Size	Description	(Table 1793)
 00h	BYTE	command/status
		00h buffer available
		01h buffer contains result
		02h change directory
		03h execute program
		FFh terminate windows portion of WINX
 01h  ? BYTEs	command (03h) or directory (02h)
  or
 01h	DWORD	result (01h)
--------W-2FF202-----------------------------
INT 2F - WINX - SET SERVER'S WORKING DIRECTORY
	AX = F202h
	BX:CX -> directory
Return: AX = status
	    FFFFh if WINX is busy processing a different request
	    0000h if successful
SeeAlso: AX=F200h,AX=F203h
--------W-2FF203-----------------------------
INT 2F - WINX - EXECUTE COMMAND
	AX = F203h
	BX:CX -> command
Return: AX = status
	    0000h if successful
	    FFFFh if WINX is busy processing a different request
SeeAlso: AX=F200h,AX=F202h
--------G-2FF400-----------------------------
INT 2F - FINDIRQ.COM - INSTALLATION CHECK
	AX = F400h
Return: AL = 01h if installed
Program: FINDIRQ is a program by Rick Knoblaugh published in the 9/28/93 issue
	  of PC Magazine; when run as a TSR it can determine which IRQs are
	  used only when a device is active
SeeAlso: AX=F401h
--------G-2FF401CX5121-----------------------
INT 2F - FINDIRQ.COM - GET HOOKED INTERRUPTS
	AX = F401h
	CX = 5121h ('Q!')
Return: AX:DX -> hooked interrupt table (see #1794)
SeeAlso: AX=F400h

Format of FINDIRQ hooked interrupt table:
Offset	Size	Description	(Table 1794)
 00h	BYTE	1Ch
 01h	DWORD	FINDIRQ's INT 1C handler
 05h	DWORD	original INT 1C handler
 09h	BYTE	28h
 0Ah	DWORD	FINDIRQ's INT 28 handler
 0Eh	DWORD	original INT 28 handler
 12h	BYTE	2Fh
 13h	DWORD	FINDIRQ's INT 2F handler
 17h	DWORD	original INT 2F handler
--------d-2FF700-----------------------------
INT 2F - AUTOPARK.COM - INSTALLATION CHECK
	AX = F700h
Return: AL = state
	    00h not installed
	    FFh installed
Program: AUTOPARK.COM is a resident hard disk parker by Alan D. Jones
--------d-2FF701-----------------------------
INT 2F - AUTOPARK.COM - SET PARKING DELAY
	AX = F701h
	BX:CX = 32-bit count of 55ms timer ticks
--------d-2FF800CX4455-----------------------
INT 2F U - SuperStor PRO 2XON.COM - INSTALLATION CHECK
	AX = F800h
	CX = 4455h ("DU")
	DL = 45h ("E")
Return: AL = FFh if installed
	    ES:BX -> ASCII signature "Universal Data Exchange"
Program: SuperStor is a disk-compression program by Addstor.
Note:	returns AX=0001h if AL is not 00h or 01h
SeeAlso: AX=1001h,AX=F801h
--------d-2FF801CX4455-----------------------
INT 2F U - SuperStor PRO 2XON.COM - UNINSTALL
	AX = F801h
	CX = 4455h ("DU")
	DL = 45h ("E")
	ES:BX = return address if successful
Return: at specified address if successfully removed from memory
	else
	    AL = error code
	    ???
Program: SuperStor is a disk-compression program by Addstor.
Note:	returns AX=0001h if AL is not 00h or 01h
SeeAlso: AX=1001h,AX=F800h
--------*-2FFB-------------------------------
INT 2F - Multiplex - RESERVED BY BORLAND INTERNATIONAL
	AH = FBh
SeeAlso: AX=FB42h/BX=0001h
--------f-2FFB-------------------------------
INT 2F U - Conner Backup Exec AUTORES - API
	AH = FBh
	BL = function number (00h-07h)
	???
Return: ???
Program: AUTORES is a resident program launcher for unattended backups
--------a-2FFB00-----------------------------
INT 2F U - AutoBraille v1.1A - INSTALLATION CHECK
	AX = FB00h
Return: AX = 00FFh if installed
Program: AutoBraille is a shareware text-to-braille converter by KANSYS, Inc.
SeeAlso: INT 10/AX=3800h,INT 14/AX=F0F1h
--------U-2FFB00-----------------------------
INT 2F U - Jot-It! v1.50 - INSTALLATION CHECK
	AX = FB00h
Return: AX = FFFFh if installed
	    BX = version (BCD, BH=major, BL=minor)
SeeAlso: AX=FB03h"Jot-It",AX=FB01h"Jot-It"
--------a-2FFB01-----------------------------
INT 2F U - AutoBraille v1.1A - ???
	AX = FB01h
	???
Return: ???
--------U-2FFB01-----------------------------
INT 2F U - Jot-It! v1.50 - GET USER NAME
	AX = FB01h
Return: DX:BX -> ASCIZ user name
SeeAlso: AX=FB02h"Jot-It"
--------a-2FFB02-----------------------------
INT 2F U - AutoBraille v1.1A - ???
	AX = FB02h
Return: AH = ???
	AL = ???
--------U-2FFB02-----------------------------
INT 2F U - Jot-It! v1.50 - GET MESSAGE DIRECTORY
	AX = FB02h
Return: DX:BX -> ASCIZ name of directory in which messages are stored
SeeAlso: AX=FB01h"Jot-It"
--------a-2FFB03-----------------------------
INT 2F U - AutoBraille v1.1A - GET NEXT ???
	AX = FB03h
Return: AX = ???
--------U-2FFB03-----------------------------
INT 2F U - Jot-It! v1.50 - UNINSTALL
	AX = FB03h
Return: resident code removed from memory
Note:	CAUTION: NO checks are performed to ensure that the interrupt vectors
	  being unhooked (08h,09h,28h,2Fh) actually point at the Jot-It! code
SeeAlso: AX=FB00h"Jot-It"
--------a-2FFB-------------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AH = FBh
	AL = 04h-08h
Return: AX = 0000h
--------a-2FFB-------------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AH = FBh
	AL = 09h-0Fh (???, 0Eh = COM1, 0Fh = COM2)
Return: ???
Program: AutoBraille is a shareware text-to-braille converter by KANSYS, Inc.
--------a-2FFB-------------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AH = FBh
	AL = 10h-1Fh
	???
Return: ???
--------a-2FFB20-----------------------------
INT 2F U - AutoBraille v1.1A - SET ??? FLAGS
	AX = FB20h
	BL = flags to set
SeeAlso: AX=FB21h"AutoBraille"
--------a-2FFB21-----------------------------
INT 2F U - AutoBraille v1.1A - CLEAR ??? FLAGS
	AX = FB21h
	BL = flags to clear
SeeAlso: AX=FB20h"AutoBraille"
--------a-2FFB22-----------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AX = FB22h
	BL = ???
Program: AutoBraille is a shareware text-to-braille converter by KANSYS, Inc.
--------a-2FFB28-----------------------------
INT 2F U - AutoBraille v1.1A - ???
	AX = FB28h
	BX = ???
	???
Return: ???
SeeAlso: AX=FB29h"AutoBraille"
--------a-2FFB29-----------------------------
INT 2F U - AutoBraille v1.1A - ???
	AX = FB29h
	BX = ???
	???
Return: ???
SeeAlso: AX=FB28h"AutoBraille"
--------a-2FFB-------------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AH = FBh
	AL = 2Bh-34h
	BX = ???
--------a-2FFB35-----------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AX = FB35h
	BL = ???
--------a-2FFB36-----------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AX = FB36h
	BL = ???
--------a-2FFB37-----------------------------
INT 2F U - AutoBraille v1.1A - SET ???
	AX = FB37h
	BL = ???
Program: AutoBraille is a shareware text-to-braille converter by KANSYS, Inc.
--------E-2FFB42BX0001-----------------------
INT 2F PU - Borland C++ DPMILOAD.EXE - INSTALLATION CHECK???
	AX = FB42h
	BX = 0001h
Return: AX = version number??? (AL=major, AH=minor)
	CX = next-selector increment
---BC2.0---
	ES:BX -> 80-byte buffer for ???
	DX = DPMI version
---BC3.0---
	BX = ??? (0000h)
	DX = ???
	ES:SI -> list of valid selectors ???
Notes:	The version of DPMILOAD distributed with BC++ v2.0 identifies itself
	  as version 1.000, while the version distributed with BC++ 3.0
	  identifies itself as version 1.0; the former is 10864 bytes, the
	  latter 22180 bytes.  The BC2.0 version is a DPMI loader, while
	  the BC3.0 version also adds a DPMI host and DOS extender
	the BC++ 2.0 version displays an error message if called with BX
	  values other than 0001h-0008h
SeeAlso: AX=1687h,AX=FB42h/BX=1001h,AX=FB43h
--------E-2FFB42BX0002-----------------------
INT 2F PU - Borland C++ 2.0 DPMILOAD.EXE - ALLOCATE MEMORY
	AX = FB42h
	BX = 0002h
	CX = size in bytes
	DX = bit flags
	    bit 2: set to allocate DOS memory, clear for DPMI memory
	SI = selector of descriptor to be modified to access allocated memory
	DI = selector of a second descriptor to be modified
Return: AX = ??? or 0000h on error
	CX:DX = linear base address of DPMI memory block
	SI:DI = handle for DPMI memory block or FFFFh:FFFFh
	???
Note:	two segment descriptors may be set if a code and an aliased data
	  segment are required; if only one descriptor is needed, SI should
	  equal DI on entry
BUG:	when allocating DOS memory, the code computes the linear address by
	  multiplying the segment number by 4 rather than shifting by 4
SeeAlso: AX=FB42h/BX=0003h,AX=FB42h/BX=0008h,INT 31/AX=0501h
--------E-2FFB42BX0002-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ALLOCATE MEMORY
	AX = FB42h
	BX = 0002h
	ES:SI -> memory block info (see #1795)
Return: ???
Note:	The version of DPMILOAD distributed with BC++ v2.0 identifies itself
	  as version 1.000, while the version distributed with BC++ 3.0
	  identifies itself as version 1.0; the former is 10864 bytes, the
	  latter 22180 bytes.
SeeAlso: AX=FB42h/BX=0003h,AX=FB42h/BX=0008h,INT 31/AX=0501h

Format of DPMILOAD memory block info:
Offset	Size	Description	(Table 1795)
 00h	WORD	flags (see #1796)
 02h	DWORD	block size in bytes
---DPMI memory block---
 06h	DWORD	DPMI memory block handle
---DOS memory block---
 06h	WORD	real-mode segment of memory block
 08h	WORD	selector of memory block
---
 0Ah	DWORD	linear address of memory
 0Eh	WORD	memory operation error code
		0008h no more free LDT descriptors
---if flags bit 0 clear---
 10h	WORD	code segment selector for memory block or 0000h or FFFFh
 12h	WORD	data alias selector for memory block or 0000h or FFFFh
---if flags bit 0 set---
 10h	WORD	data segment selector for memory block or 0000h or FFFFh
 12h	WORD	unused???

Bitfields for DPMILOAD memory block flags:
Bit(s)	Description	(Table 1796)
 0	set if data segment rather than code segment
 1	information valid
 2	set if DOS memory block rather than DPMI memory block
 4	???
 15	set if no LDT selectors for memory block???
SeeAlso: #1795
--------E-2FFB42BX0003-----------------------
INT 2F PU - Borland C++ DPMILOAD.EXE - GET AVAILABLE MEMORY
	AX = FB42h
	BX = 0003h
Return: DX:AX = size of largest free block in paragraphs
		0000h:0000h on error (BC3.0 version only)
Note:	AX and DX are destroyed on error, but no other error indicator is
	  returned, under the BC++ 2.0 version of DPMILOAD
SeeAlso: AX=FB42h/BX=0002h
--------E-2FFB42BX0004-----------------------
INT 2F PU - Borland C++ DPMILOAD.EXE - LOAD PROTECTED-MODE EXECUTABLE???
	AX = FB42h
	BX = 0004h
	DS:DX -> ASCIZ filename of protected-mode executable
Return: CX = selector of ??? or 0000h
---BC3.0---
	DX = status (0000h,FFF4h,others???) (see #1797)
Note:	the filename may also be terminated by a CR rather than a NUL under the
	  BC++ 3.0 version of DPMILOAD

(Table 1797)
Values for DPMILOAD function status:
 0000h	successful
 0001h	??? failure
 0002h	invalid selector
 0004h	unknown error
 0008h	no more LDT descriptors available???
 FFDEh	unable to set descriptor
 FFDFh	unable to get segment base address
 FFE0h	???
 FFF2h	invalid parameter value
 FFF4h	component of filename too long (name not in 8.3 format)
 FFF5h	pathname too long (>79 chars)
 FFF6h	???
 FFF8h	???
 FFF9h	index out of range
 FFFAh	???
 FFFCh	invalid access to code segment???
 FFFEh	???
 FFFFh	general error
--------E-2FFB42BX0005-----------------------
INT 2F PU - Borland C++ DPMILOAD.EXE - GET ADDRESS OF ??? BY NAME
	AX = FB42h
	BX = 0005h
	CX = selector of DPMILOAD data (see #1798)
	DS:DX -> ASCIZ or CR-terminated name of ??? (case ignored)
Return: DX = status (see #1797)
	    0000h successful
		AX:BX -> ??? FAR function (called with two words on top of stk)
	    else
		BX destroyed
SeeAlso: AX=FB42h/BX=0006h,AX=FB42h/BX=000Eh

Format of DPMILOAD data:
Offset	Size	Description	(Table 1798)
 00h 12 BYTEs	???
 0Ch	WORD	??? bit flags
 0Eh 14 BYTEs	???
 1Ch	WORD	number of memory control records (see #1801)
 1Eh 25 BYTEs	???
 37h	BYTE	??? bit flags
		bit 4: data valid???
 38h  4 BYTEs	???
 3Ch	WORD	???
 3Eh 12 BYTEs	???
 46h	BYTE	??? counter
 47h	BYTE	???
 48h	BYTE	???
 49h	BYTE	???
 4Ah	WORD	???
 4Ch  2 BYTEs	???
 4Eh	WORD	offset of array of 64-byte memory control records
 52h	WORD	offset of name list (see #1799)
 54h  4 BYTEs	???
 58h	WORD	offset of array of 6-byte objects (see #1800)
 5Ah  8 BYTEs	???
 62h  9 BYTEs	ASCIZ name for ???
 6Bh  9 BYTEs	ASCIZ name for ???
	???

Format of name list entry [array]:
Offset	Size	Description	(Table 1799)
 00h	BYTE	length of name (00h if end of array)
 01h  N BYTEs	name
 N+1	WORD	1-based index into array of unknown 6-byte objects

Format of 6-byte objects:
Offset	Size	Description	(Table 1800)
 00h	BYTE	???
 01h	BYTE	???
 02h	BYTE	???
 03h	BYTE	1-based index of memory control record
 04h	WORD	???

Format of memory control record:
Offset	Size	Description	(Table 1801)
 00h 20 BYTEs	memory block info (see #1795)
 14h  6 BYTEs	???
 1Ah	BYTE	???
 1Bh  2 BYTEs	???
 1Dh	BYTE	??? bit flags
 1Eh 14 BYTEs	???
 2Ch	DWORD	pointer to ??? memory control record or 0000h:0000h
 30h	DWORD	pointer to ??? memory control record or 0000h:0000h
 34h	DWORD	pointer to next??? memory control record or 0000h:0000h
 38h	DWORD	pointer to prev??? memory control record or 0000h:0000h
 3Ch  4 BYTEs	???
Note:	the pointers at offsets 2Ch and 30h form a doubly-linked list, as do
	  the pointers at offsets 34h and 38h
--------E-2FFB42BX0006-----------------------
INT 2F PU - Borland C++ DPMILOAD.EXE - GET ADDRESS OF ??? BY NUMBER
	AX = FB42h
	BX = 0006h
	CX = selector of DPMILOAD data (see #1798)
	DX = 1-based index into array of ??? 6-byte objects
Return: DX = status (see #1797)
	    0000h successful
		AX:BX -> ??? FAR function (called with two words on top of stk)
	    else
		BX destroyed
SeeAlso: AX=FB42h/BX=0005h,AX=FB42h/BX=000Eh
--------E-2FFB42BX0007-----------------------
INT 2F PU - Borland C++ 2.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0007h
	CX = selector of ???
Return: ???
Note:	The version of DPMILOAD distributed with BC++ v2.0 identifies itself
	  as version 1.000, while the version distributed with BC++ 3.0
	  identifies itself as version 1.0; the former is 10864 bytes, the
	  latter 22180 bytes.
--------E-2FFB42BX0007-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0007h
	CX = selector of DPMILOAD data (see #1798)
	???
Return: DX = status (see #1797)
	    0000h successful
		AX = ???
--------E-2FFB42BX0008-----------------------
INT 2F PU - Borland C++ 2.0 DPMILOAD.EXE - FREE MEMORY BLOCK
	AX = FB42h
	BX = 0008h
	CX = bit flags
	    bit 2: set if DPMI memory, clear if DOS memory
	DX = selector of DOS memory block
	SI:DI = handle of DPMI memory block
Return: DX = 0000h on error, unchanged if succcessful
Note:	The version of DPMILOAD distributed with BC++ v2.0 identifies itself
	  as version 1.000, while the version distributed with BC++ 3.0
	  identifies itself as version 1.0; the former is 10864 bytes, the
	  latter 22180 bytes.
SeeAlso: AX=FB42h/BX=0002h
--------E-2FFB42BX0008-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - FREE MEMORY BLOCK
	AX = FB42h
	BX = 0008h
	ES:SI -> memory block info (see #1795)
Return: ???
SeeAlso: AX=FB42h/BX=0009h
--------E-2FFB42BX0009-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - RESIZE MEMORY BLOCK
	AX = FB42h
	BX = 0009h
	ES:SI -> memory block info (see #1795)
	???
Return: ???
SeeAlso: AX=FB42h/BX=0008h"3.0"
--------E-2FFB42BX000A-----------------------
INT 2F RU - Borland C++ 3.0 DPMILOAD.EXE - INIT DPMI HOST AND SPAWN SUBSHELL
	AX = FB42h
	BX = 000Ah
	CX = 0001h
	DX = ???
	SI = ???
Return: after user exits subshell
Notes:	this call is used by DPMIRES; unlike most of the DPMILOAD calls, this
	  function is not available in protected mode.
	the BC2.0 version of DPMILOAD is purely a DPMI loader, while the BC3.0
	  version also adds a DPMI host and DOS extender.
SeeAlso: AX=FB42h/BX=0004h,AX=FB42h/BX=0015h
--------E-2FFB42BX000B-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - UNUSED
	AX = FB42h
	BX = 000Bh
--------E-2FFB42BX000C-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - FREE DESCRIPTORS FOR MEMORY BLOCK???
	AX = FB42h
	BX = 000Ch
	ES:SI -> memory block info ??? (see #1795)
Return: DX = status???
SeeAlso: AX=FB42h/BX=000Fh
--------E-2FFB42BX000D-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - SIMULATE REAL MODE INTERRUPT
	AX = FB42h
	BX = 000Dh
	CX = number of words to copy from protected-mode to real mode stack
	DL = interrupt number
	DH = flags
	    bit 0: reset the interrupt controller and A20 line
	ES:DI -> real-mode call structure (see #1815 at INT 31/AX=0300h)
Return: CX = status
	    0000h successful
	    0001h failed
SeeAlso: INT 31/AX=0300h
--------E-2FFB42BX000E-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET ADDRESS OF ???
	AX = FB42h
	BX = 000Eh
	DS:DX -> ASCIZ or CR-terminated name of ???
Return: CX = selector of DPMILOAD data (see #1798) corresponding to name,
	      0000h on error
SeeAlso: AX=FB42h/BX=0006h,AX=FB42h/BX=001Fh
--------E-2FFB42BX000F-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - REALLOCATE LDT DESCRPS TO MEMBLK???
	AX = FB42h
	BX = 000Fh
	ES:SI -> memory block info (see #1795)
Return: ???
SeeAlso: AX=FB42h/BX=000Ch
--------E-2FFB42BX0010-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - CONVERT SEGMENT TO SELECTOR
	AX = FB42h
	BX = 0010h
	DX = segment number
Return: CX = status (0000h,0008h) (see also AX=FB42h/BX=0004h)
	    0000h successful
		DX = selector number for descriptor
	    0008h failed
SeeAlso: AX=FB42h/BX=0023h
--------E-2FFB42BX0011-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0011h
	CX = selector of DPMILOAD data (see #1798)
	???
Return: DX = status (0000h,0002h,FFFEh) (see also #1797)
	    0000h successful
		AX:BX -> ??? name
	    FFFEh ??? error
--------E-2FFB42BX0012-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0012h
	CX = selector for ???
Return: CX = selector for ???
--------E-2FFB42BX0013-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0013h
	CX = selector of DPMILOAD data (see #1798)
	DX = 1-based index of ???
Return: CX = status (0000h,0002h,FFF9h) (see also #1797)
	    0000h successful
		BX = ??? or 0000h
	    FFF9h ??? error
--------E-2FFB42BX0014-----------------------
INT 2F RU - Borland C++ 3.0 DPMILOAD.EXE - INSTALLATION CHECK
	AX = FB42h
	BX = 0014h
	CX = 0001h
Return: BX = 0000h if installed
Note:	unlike most of the DPMILOAD functions, this call is available only in
	  real or V86 mode
SeeAlso: AX=FB42h/BX=0001h,AX=FB42h/BX=000Ah
--------E-2FFB42BX0015-----------------------
INT 2F RU - Borland C++ 3.0 DPMILOAD.EXE - UNINSTALL
	AX = FB42h
	BX = 0015h
	CX = 0001h
Return: ???
Note:	unlike most of the DPMILOAD functions, this call is available only in
	  real or V86 mode
SeeAlso: AX=FB42h/BX=000Ah
--------E-2FFB42BX0016-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET ???
	AX = FB42h
	BX = 0016h
	CX = selector of DPMILOAD data (see #1798)
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
		CX = ???
--------E-2FFB42BX0017-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0017h
	CX = ???
	DX = ???
	???
Return: DX = status (0000h,0001h) (see #1797)
--------E-2FFB42BX0018-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - SET ???
	AX = FB42h
	BX = 0018h
	CX = ???
--------E-2FFB42BX0019-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0019h
	CX = selector for ???
	???
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
		CX = selector for ???
--------E-2FFB42BX001A-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 001Ah
	CX = selector for ???
	???
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
		 0004h failed
	CX:BX -> ???
--------E-2FFB42BX001B-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 001Bh
	CX = selector of DPMILOAD data (see #1798)
	DX = offset of ???
Return: DX = status (0000h,0002h) (see also #1797)
	    0000h successful
		BX = selector for ???
		CX = selector for ???
--------E-2FFB42BX001C-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 001Ch
	ES = selector for DPMILOAD data (see #1798)
	CX = 1-based index of ???
	DX = 1-based index of ???
Return: DX = status (0000h,0002h,FFF9h) (see #1797)
--------E-2FFB42BX001D-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET ???
	AX = FB42h
	BX = 001Dh
Return: CX:DX = ???
--------E-2FFB42BX001E-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 001Eh
	CX = ???
	???
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
	    FFF7h ??? error
	CX:BX -> ???
--------E-2FFB42BX001F-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET ADDRESS OF ???
	AX = FB42h
	BX = 001Fh
	DS:DX -> 8-character name of ???
	???
Return: CX = selector of DPMILOAD data (see #1798) for ???
		0000h on error
SeeAlso: AX=FB42h/BX=000Eh
--------E-2FFB42BX0020-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - NULL FUNCTION???
	AX = FB42h
	BX = 0020h
Return: DX = ??? (always 0000h)
--------E-2FFB42BX0021-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET PROCESSOR EXCEPTION HANDLER VECT
	AX = FB42h
	BX = 0021h
	CL = exception number (00h-1Fh)
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
		AX:BX = selector:offset of handler
	    FFF2h unable to get exception handler vector
SeeAlso: AX=FB42h/BX=0022h,AX=FB42h/BX=0024h,INT 31/AX=0202h
--------E-2FFB42BX0022-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - SET PROCESSOR EXCEPTION HANDLER VECT
	AX = FB42h
	BX = 0022h
	CL = exception number (00h-1Fh)
	SI:DX = selector:offset of new handler
Return: DX = status (0000h,0004h,FFF2h) (see #1797)
SeeAlso: AX=FB42h/BX=0021h,AX=FB42h/BX=0025h,INT 31/AX=0203h
--------E-2FFB42BX0023-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - CONVERT SELECTOR TO SEGMENT NUMBER
	AX = FB42h
	BX = 0023h
	CX = selector
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
		CX = real-mode segment number
	    FFF2h descriptor has invalid base address for real-mode segment
SeeAlso: AX=FB42h/BX=0010h
--------E-2FFB42BX0024-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET PROTECTED-MODE INTERRUPT VECTOR
	AX = FB42h
	BX = 0024h
	CL = interrupt number
Return: DX = status (0000h) (see also AX=FB42h/BX=0004h)
	AX:BX = selector:offset of handler
SeeAlso: AX=FB42h/BX=0025h,INT 31/AX=0204h
--------E-2FFB42BX0025-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - SET PROTECTED-MODE INTERRUPT VECTOR
	AX = FB42h
	BX = 0025h
	CL = interrupt number
	SI:DX = selector:offset of new handler
Return: DX = status (0000h,0004h,FFF2h) (see #1797)
SeeAlso: AX=FB42h/BX=0024h,INT 31/AX=0205h
--------E-2FFB42BX0026-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - ???
	AX = FB42h
	BX = 0026h
	CX = selector of DPMILOAD data (see #1798)
	DX = 1-based index of ???
	???
Return: DX = status (0000h,0002h,FFF9h) (see #1797)
	    0000h successful
		BX = offset of ??? within data structure
--------E-2FFB42BX0027-----------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - GET ???
	AX = FB42h
	BX = 0027h
	CX = selector of DPMILOAD data (see #1798)
	DX = offset of ???
Return: DX = status (see also AX=FB42h/BX=0004h)
	    0000h successful
		BX = ???
--------E-2FFB42BX0080-----------------------
INT 2F U - ??? - CALLED BY Borland C++ 3.0 DPMILOAD.EXE
	AX = FB42h
	BX = 0080h
	???
Return: AX = ???
	???
--------E-2FFB42BX0081-----------------------
INT 2F U - ??? - CALLED BY Borland C++ 3.0 DPMILOAD.EXE
	AX = FB42h
	BX = 0081h
	???
Return: AX = ???
	???
--------E-2FFB42BX1001-----------------------
INT 2F U - Borland RTM.EXE 1.0 - INSTALLATION CHECK???
	AX = FB42h
	BX = 1001h
Return: BX = 0000h
SeeAlso: AX=FB42h/BX=0001h,AX=FB42h/BX=1002h,AX=FB42h/BX=1003h
--------E-2FFB42BX1002-----------------------
INT 2F U - Borland RTM.EXE 1.0 - ???
	AX = FB42h
	BX = 1002h
	???
Return: ???
SeeAlso: AX=FB42h/BX=1001h
--------E-2FFB42BX1003-----------------------
INT 2F U - Borland RTM.EXE 1.0 - ???
	AX = FB42h
	BX = 1003h
	???
Return: ???
SeeAlso: AX=FB42h/BX=1001h
--------E-2FFB43-----------------------------
INT 2F PU - Borland C++ 3.0 DPMILOAD.EXE - NULL FUNCTION
	AX = FB43h
	BX = subfunction (at least 0000h-000Eh)
Notes:	this function is only present in protected mode; it does nothing but
	  an immediate IRET
	DPMILOAD.EXE itself calls various subfunctions:
	    subfunction 0004h is called with CX=selector of ???, DI=selector
		  of DPMILOAD data
	    subfunction 0008h is called with CX=selector of DPMILOAD data
SeeAlso: AX=FB42h/BX=0001h
--------G-2FFB43BX0100-----------------------
INT 2F PU - Borland TDX - INSTALLATION CHECK
	AX = FB43h
	BX = 0100h
Return: BX = FB43h if loaded
Program: TDX is Borland's Turbo Debugger variant for DPMI programs
Note:	Borland Pascal 7 DPMI programs use this call to check whether they
	  should install their own stack and general protection exception
	  handlers, or allow TDX to handle those exceptions
--------a-2FFB64-----------------------------
INT 2F U - AutoBraille v1.1A - GET ???
	AX = FB64h
Return: AX = ??? (0006h seen)
Program: AutoBraille is a shareware text-to-braille converter by KANSYS, Inc.
--------E-2FFBA1BX0081-----------------------
INT 2F U - TKERNEL (Borland DOS extender) - INSTALLATION CHECK
	AX = FBA1h
	BX = 0081h
	ES:DI -> 16-byte buffer
Return: if installed, first four bytes of ES:DI buffer are "IABH"
Program: TKERNEL is a licensed version of AI Architects/Ergo's OS/x86.
Note:	TKERNEL was present only in Borland C++ 2.0; with version 3.0, the DOS
	  extender was moved into DPMILOAD.
SeeAlso: AH=A1h,AX=F100h,AX=FBA1h/BX=0082h,AX=FBA1h/BX=0084h,INT 15/AX=BF02h
SeeAlso: INT 21/AX=4403h"TKERNEL"
--------E-2FFBA1BX0082-----------------------
INT 2F U - TKERNEL (Borland DOS extender) - GET ENTRY POINT
	AX = FBA1h
	BX = 0082h
	ES:DI -> response buffer (see #1802)
Return: ES:DI buffer filled
SeeAlso: AX=FBA1h/BX=0081h,AX=FBA1h/BX=0084h

Format of TKERNEL response buffer:
Offset	Size	Description	(Table 1802)
 00h  4 BYTEs	signature "IABH"
 04h	DWORD	pointer to FAR extender entry point (see #1803)

(Table 1803)
Call TKERNEL entry point with:
	AX = function number
	    0000h initialize???
		STACK:	WORD  ???
		Return: AX = status???
			STACK unchanged
	    0001h get version???
		Return: AX = 0200h for v2.0.34
	    0002h get ???
		Return: AX = ??? (011Eh or 0182h seen)
	    0003h load protected-mode executable
		STACK:	DWORD -> ASCIZ filename of executable
			DWORD	???
			DWORD -> program arguments (counted string plus CR)
			DWORD -> environment for protected-mode executable
				(terminated with two consecutive NULs)
			DWORD -> WORD buffer for ???
		Return: AX = status???
			STACK unchanged
	    0004h get descriptor
		STACK:	WORD	selector for which to get descriptor
			WORD	segment number (when running in real mode)
			DWORD -> buffer for descriptor
		Return: CF clear if successful
			    buffer filled
			CF set on error
			    AX destroyed???
			STACK unchanged
	    0005h ???
		STACK:	WORD	selector for ???
			WORD	subfunction number???
				0000h run previously-loaded program???
				0001h ??? (similar to 0000h)
				0002h
				0003h
				0005h ??? (similar to 0000h and 0001h)
		Return: AX = status???
			STACK unchanged
	    0006h ???
		STACK:	WORD ???
			DWORD -> WORD (call) max iterations of ???
				      (ret) remaining iterations
		Return: AX = ???
			STACK unchanged
	    0007h unused
		Return: AX = 0001h
	    0008h unused
		Return: AX = 0001h
	    0009h copy protected-mode memory into conventional memory
		STACK:	WORD	selector for source segment
			WORD	segment of source if in real mode???
			DWORD	offset of source
			WORD	number of bytes to copy
			DWORD -> low-memory destination
		Return: AX = status
			STACK unchanged
	    000Ah copy conventional memory into protected-mode memory
		STACK:	WORD	selector for destination segment
			WORD	segment of destination if in real mode???
			DWORD	offset of destination
			WORD	number of bytes to copy
			DWORD -> low-memory source
		Return: AX = status
			STACK unchanged
	    000Bh get ??? pointers
		STACK:	WORD desired pointer
				0000h get ???
				0002h get protected-mode CR3
				0003h get 4K page table buffer pointer
				else Return: DX:AX = FFFFh:FFFFh
		Return: DX:AX = requested pointer
			STACK unchanged
	    000Ch set ??? pointers
		STACK:	WORD desired pointer
				0000h set ???
				0002h set protected-mode CR3
				0003h set 4K page table buffer pointer
				else ignore
			DWORD new value for pointer
		Return: STACK unchanged
		 000Dh get ??? pointers
		STACK:	WORD desired pointer
				0000h get ???
				0001h get ???
				0002h get ???
				0003h get ???
				0004h get ???
				0005h get ???
				0006h get ???
				0007h get ???
				else Return: DX:AX = FFFFh:FFFFh
		Return: DX:AX = desired pointer
			STACK unchanged
	    000Eh set ??? pointer
		STACK:	WORD desired pointer
				0000h set ???
				0001h set ???
				0002h set ???
				0003h set ???
				0004h set ???
				0005h set ???
				0006h set ???
				0007h set ???
				else Return: DX:AX = FFFFh:FFFFh
		Return: STACK unchanged
	    000Fh get ???
		Return: AX = ??? (seen 0008h)
	    0010h get ???
		Return: AX = ???
	    0011h determine whether selector is valid
		STACK:	WORD	possible selector
		Return: AX = selector or 0000h if invalid
			STACK unchanged
	    0012h get physical address
		STACK:	WORD	selector for desired segment
			WORD	segment number if in real mode
			DWORD	offset within segment
		Return: DX:AX = 32-bit physical address or 00000000h on error
			BX destroyed
			STACK unchanged
	    0013h ???
		Note:	normally jumps to code for function 0012h
	    0014h copy protected-mode memory to conventional memory, with ???
		STACK:	WORD	selector for source segment
			WORD	segment of source if in real mode???
			DWORD	offset of source
			WORD	number of bytes to copy
			DWORD -> low-memory destination
		Return: AX = status???
			STACK unchanged
	    0015h copy conventional memory to protected-mode memory, with ???
		STACK:	WORD	selector for destination segment
			WORD	segment of destination if in real mode???
			DWORD	offset of destination
			WORD	number of bytes to copy
			DWORD -> low-memory source
		Return: AX = status???
			STACK unchanged
	    0016h set ??? pointer
		STACK:	WORD	unused
			DWORD -> ??? or 0000h:0000h
		Return: AX = 0000h
			STACK unchanged
	    0017h allocate real-mode procedure???
		STACK:	DWORD	ASCIZ name of procedure
			DWORD ???
			DWORD	address of subroutine to invoke
		Return: AX = status
			    0032h procedure by that name exists
				 0033h no more real-mode procedures available
			DX destroyed
			STACK unchanged
	    0018h unused
		Return: AX = 0001h
	    0019h get parameter block
		Return: DX:AX -> parameter block (format unknown at this time,
				  but 92h bytes)
				  (preceded by signature "!!PARAM-BLOCK!!")
	    001Ah get ???
		Return: AX = ??? (0148h seen)
	    001Bh free real-mode procedure???
		STACK:	DWORD -> ASCIZ name of procedure
		Return: ???
			STACK unchanged
	    001Ch check whether packets from protected mode task pending
		Return: AX = 0001h if packets pending, 0000h if not
	    001Dh set ???
		STACK:	DWORD ??? or 0000h:0000h
		Return: AX,BX destroyed
			STACK unchanged
	    001Eh ???
		STACK:	WORD ??? (high byte ignored)
			DWORD -> data structure (see below)
		Return: AX,BX,CX,DX destroyed
			data structure updated
			STACK unchanged
		Format of data structure:
		Offset	Size	Description
		 00h  2 BYTEs	unused
		 02h	WORD	???
		 04h	WORD	???
		 06h	WORD	???
		 08h  2 BYTEs	unused
		 0Ah	WORD	???
		 0Ch	WORD	(call) ???
				(ret) offset of this data structure (BUG?)
	    001Fh set ???
		STACK:	WORD ??? (set to 0001h if zero)
		Return: AX destroyed
			STACK unchanged
	    0020h ???
		STACK:	DWORD -> ??? (8 bytes of data)
		Return: AX = ???
			STACK unchanged
	    0021h ???
		STACK:	DWORD -> ??? (8 bytes of data)
			WORD	???
			WORD	???
		Return: AX = ???
			STACK unchanged
	    0022h ???
		STACK:	DWORD -> ??? (8 bytes of data)
			DWORD -> 4-byte buffer for results
		Return: AX = ???
			STACK unchanged
	    0023h ???
		STACK:	DWORD -> ??? (8 bytes of data)
		Return: AX = ???
			STACK unchanged
	    0024h set ???
		STACK:	WORD ???
		Return: AX destroyed
			STACK unchanged
	    0025h get ???
		Return: AX = ??? (value set with func 0024h)
	    0026h BUG: jumps to hyperspace due to fencepost error
	    FFFFh set DOS memory management functions
		BX:SI -> FAR routine for allocating DOS memory
			  (called with AH=48h,BX=number of paragraphs to alloc;
			  returns CF clear, AX=segment of allocated memory, or
				  CF set on error)
		CX:DI -> FAR routine for freeing DOS memory
			  (called with AH=49h,ES=segment of block to free;
			  returns CF set on error, AX=error code)
		Note: each of these pointers normally points at INT 21/RETF
	    other Return: AX = 0001h
Note:	BX may be destroyed by any of the API calls
--------E-2FFBA1BX0084-----------------------
INT 2F U - TKERNEL (Borland DOS extender) - UNINSTALL
	AX = FBA1h
	BX = 0084h
	ES:DI -> response buffer (see #1804)
Return: ES:DI buffer filled
SeeAlso: AX=FBA1h/BX=0081h,AX=FBA1h/BX=0084h

Format of TKERNEL response buffer:
Offset	Size	Description	(Table 1804)
 00h  4 BYTEs	signature "IABH"
 04h	WORD	success indicator
		0001h failed (INT 2F hooked by another program)
		unchanged if successful
 06h	WORD	segment of ???
 08h	WORD	segment of ??? memory block to free if nonzero
 0Ah	WORD	segment of ??? memory block to free if nonzero
--------s-2FFBFBES0000-----------------------
INT 2F U - SoundBlaster speech driver - INSTALLATION CHECK
	AX = FBFBh
	ES = 0000h
Return: ES nonzero if installed
	    ES:BX -> entry point data structure (see #1805)
SeeAlso: INT 80/BX=0000h,INT F3"SoundBlaster"

Format of SoundBlaster entry point data structure:
Offset	Size	Description	(Table 1805)
 00h  3 BYTEs	signature "FB "
 03h	BYTE	driver major version number???
 04h	DWORD	speech driver entry point (see #1806)
 08h 24 BYTEs	???
 20h  ? BYTEs	data buffer for calling speech driver

(Table 1806)
Call SoundBlaster speech driver entry point with:
	AL = function
	    07h speak a string
		data buffer (see #1805) contains:
			BYTE  length of string
		      N BYTEs string to speak
--------!---Section--------------------------
Interrupt List, part 9 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------N-2FFE00BX4454-----------------------
INT 2F - PC-NFS ??? - INSTALLATION CHECK
	AX = FE00h
	BX = 4454h ("DT")
	CX = 4B52h ("KR")
	DX = 4E4Dh ("NM")
Return: AL = FFh if installed
	   BX = 524Eh ("RM")
	   CX = 4D44h ("MD")
	   DX = 544Bh ("TK")
Note:	DV/X 1.10 DVPCNFS.DVR searches AH=FEh,FFh,C0h-FDh for a valid response
SeeAlso: AX=FE08h
--------N-2FFE00BX4454-----------------------
INT 2F - PC-NFS ??? - INSTALLATION CHECK
	AX = FE00h
	BX = 4454h ("DT")
	CX = 4B52h ("KR")
	DX = 544Dh ("TM")
Return: AL = FFh if installed
	   BX = 5254h ("RT")
	   CX = 4D44h ("MD")
	   DX = 544Bh ("TK")
Note:	DV/X 1.10 DVPCNFS.DVR searches AH=FEh,FFh,C0h-FDh for a valid response
SeeAlso: AX=FE08h
--------U-2FFE00DI4E55-----------------------
INT 2F U - NORTON UTILITIES 5.0+ TSRs - INSTALLATION CHECK/STATUS REPORT
	AX = FE00h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply
	    lowercase version of SI on entry (i.e. SI OR 2020h)
	AH = status
	    00h installed but disabled internally
	    01h installed and enabled
	AL = installed product
	    00h NCACHE-x or DISKREET
	    01h SPEEDRV / FILESAVE / EP / DISKMON v6+ installed
	    02h NCACHE2 / SMARTCAN
	    45h DISKMON v5 installed
	BX = length of *.INI file (DISKMON and FILESAVE/EP/SMARTCAN only)
			(see #1808,#1809)
	CX = segment of resident portion
	    FFFFh if completely loaded high (NCACHE)
---FILESAVE/EP---
	DL = ??? (apparently always 00h)
---DISKMON---
	DX = ??? (apparently always 1AE6h [v5] / 1B86h [v6] / 1C26h [v7])
Notes:	the value returned in CX is incorrect for NCACHE 6.00
	all Norton Caches install as SMARTAAR drivers like SMARTDRV v3
	NCACHE2 and SPEEDRV both support the SMARTDRV v4+ installation check
	to detect Diskreet NDisk drives use CDS/DPB (see INT 21/AH=52h)
SeeAlso: AX=4A10h/BX=0000h,AX=FE01h,AX=FE02h,AX=FE03h,AX=FE04h,AX=FE05h
SeeAlso: INT 21/AX=4402h"SMARTDRV"

(Table 1807)
Values for Norton Utilities TSR identifier:
 4346h	("CF") NCACHE-F (v5) / NCACHE (v6) / NCACHE2 (v7+) / SPEEDRV
 4353h	("CS") NCACHE-S (v5 only)
 4443h	("DC") DISKREET
 444Dh	("DM") DISKMON
 4653h	("FS") FILESAVE (v5) / EP (v6) / SMARTCAN (v7+)

Format of DISKMON.INI file:
Offset	Size	Description	(Table 1808)
-6Ch 108 BYTEs	(in memory copy only)
		list of filenames which are always protected:
		  IBMBIO.COM/IBMDOS.COM, IO.SYS/MSDOS.SYS, TBIOS.SYS/TDOS.SYS,
		  MIO.SYS/IO.BIN, COMMAND.COM
 00h	BYTE	??? always 01h
 01h	BYTE	disk light (00h off, 01h on)
 02h	BYTE	disk protection (00h off, 01h on)
 03h	BYTE	protected areas
		01h system area
		02h files
		03h system area and files
		04h entire disk
 04h	BYTE	floppy access (00h not allowed, 01h allowed)
 05h 27 BYTEs	filename extension list (9 entries)
		(lowercase, blank padded or = 000000h)
 20h 240 BYTEs	filename list (20 entries)
		(lowercase, name and extension blank padded, with '.')
Note:	CX:0508h -> copy in installed TSR (v5)
	CX:052Fh -> copy in installed TSR (v6)
	CX:04E0h -> copy in installed TSR (v7-v8)

Format of FILESAVE.INI / EP.INI / SMARTCAN.INI file:
Offset	Size	Description	(Table 1809)
 00h 26 BITs	drive list (bit set: file protection on, cleared: off):
 00h	BYTE	drives	A: - H:
 01h	BYTE	drives	I: - P:
 02h	BYTE	drives	Q: - X:
 03h	BYTE	drives	Y: - Z:
 04h	BYTE	which files to protect
		00h all files
		01h all files with extension in list
		02h all files except those with extension in list
 05h 27 BYTEs	filename extension list (9 entries, uppercase, ASCIZ)
 20h	BYTE	include files with archive bit clear (00h no, 01h yes)
 21h	WORD	number of days after which files are purged (0 = never)
 23h	WORD	max kilobytes of erased file space to hold (0 = all)
Note:	CX:03D2h -> copy in installed TSR (v5)
	CX:03F5h -> copy in installed TSR (v6)
	CX:0434h -> copy in installed TSR (v7-v8)
--------U-2FFE01DI4E55-----------------------
INT 2F U - NORTON UTILITIES 5.0+ TSRs - ENABLE
	AX = FE01h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply (lowercase version of entry SI, i.e. SI OR 2020h)
	AX = status
	    0002h successful (DISKMON, FILESAVE, EP)
	    FE00h successful (NCACHE-x, DISKREET)
Notes:	if the enable/disable calls are used on DISKMON or NCACHE-x, the status
	  report generated by the programs still indicates the previous state,
	  and DISKMON.INI is not updated
	apparently has no effect on DISKREET
SeeAlso: AX=FE00h,AX=FE02h
--------U-2FFE02DI4E55-----------------------
INT 2F U - NORTON UTILITIES 5.0+ TSRs - DISABLE
	AX = FE02h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply (lowercase version of entry SI, i.e. SI OR 2020h)
	AX = status
	    0004h successful (DISKMON, FILESAVE)
	    FE00h successful (NCACHE-x, DISKREET)
Notes:	(see also AX=FE01h)
	this function appears to be unsafe, as the cache buffers are not
	  flushed
SeeAlso: AX=FE00h,AX=FE01h
--------U-2FFE03DI4E55-----------------------
INT 2F U - NORTON UTILITIES 5.0+ TSRs - FLUSH BUFFERS
	AX = FE03h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply (lowercase version of entry SI, i.e. SI OR 2020h)
	AX = status
	    0006h successful???
Notes:	only supported by DISKMON, FILESAVE, and NCACHE-x
	useful for flushing NCACHE before rebooting
SeeAlso: AX=FE00h,AX=FE10h
--------U-2FFE04DI4E55-----------------------
INT 2F U - NORTON UTILITIES 5.0+ DISKMON, FILESAVE / EP - internal - ???
	AX = FE04h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply (lowercase version of entry SI, i.e. SI or 2020h)
	AX = status
	    0008h successful???
SeeAlso: AX=FE00h
--------U-2FFE05DI4E55-----------------------
INT 2F U - NORTON UTILITIES 5.0+ DISKMON, FILESAVE / EP - internal - ???
	AX = FE05h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply (lowercase version of entry SI, i.e. SI or 2020h)
	AX = status
	    000Ah successful???
Note:	reportedly dangerous
SeeAlso: AX=FE00h
--------N-2FFE08-----------------------------
INT 2F - PC-NFS ??? - GET ???
	AX = FE08h
Return: ES:BX -> ???
Notes:	DV/X 1.10 DVPCNFS.DVR searches AH=FEh,FFh,C0h-FDh for a valid response
	both the driver responding to AX=FE00h/DX=4E4Dh and the one responding
	  to AX=FE00h/DX=544Dh support this function
SeeAlso: AX=FE00h/BX=4454h
--------U-2FFE10DI4E55-----------------------
INT 2F U - NORTON UTILITIES 6.0 NCACHE - REBOOT
	AX = FE10h
	DI = 4E55h ("NU")
	SI = TSR identifier (see #1807)
Return: SI = TSR reply (lowercase version of entry SI, i.e. SI or 2020h)
	AX = status
Note:	probably used to flush NCACHE buffers and reboot when Ctrl-Alt-Del is
	  detected
SeeAlso: AX=FE03h
--------S-2FFEEF-----------------------------
INT 2F - RTS Control TSR - INSTALLATION CHECK
	AX = FEEFh
Return: AX = EFFEh if installed
	    BX = port address
Program: RTS Control TSR is a utility by Michal Szokolo to lower the RTS
	  signal on a COM port during disk accesses to avoid losing incoming
	  data
--------N-2FFF00-----------------------------
INT 2F - Topware Network Operating System - INSTALLATION CHECK
	AX = FF00h
Return: AL = status
	    00h not installed, OK to install
	    01h not installed, not OK to install
	    FFh installed
SeeAlso: AX=FF01h,AX=FF02h,AX=FF10h,INT 21/AX=FF00h"Topware",INT 7A"Topware"
--------N-2FFF01-----------------------------
INT 2F - Topware Network Operating System - GET VERSION
	AX = FF01h
Return: AX = version
SeeAlso: AX=FF00h,AX=FF02h
--------N-2FFF02-----------------------------
INT 2F - TopWare Network OS v5.10+ - GET TopNet VERSION STRING
	AX = FF02h
Return: ES:BX -> version string
SeeAlso: AX=FF00h,AX=FF01h
--------N-2FFF10-----------------------------
INT 2F - TopWare Network OS v5.10+ - TopTerm - INSTALLATION CHECK
	AX = FF10h
Return: AL = status (00h not installed, 01h installed)
SeeAlso: AX=FF00h,AX=FF11h,AX=FF12h,AX=FF13h
--------N-2FFF11-----------------------------
INT 2F - TopWare Network OS v5.10+ - TopTerm - ENABLE KEYBOARD SERVICE
	AX = FF11h
Note:	this function is only available on workstations, not on the server
SeeAlso: AX=FF10h,AX=FF12h
--------N-2FFF12-----------------------------
INT 2F - TopWare Network OS v5.10+ - TopTerm - DISABLE KEYBOARD SERVICE
	AX = FF12h
Note:	this function is only available on workstations, not on the server
SeeAlso: AX=FF10h,AX=FF11h
--------N-2FFF13-----------------------------
INT 2F - TopWare Network OS v5.10+ - TopTerm - SET INSTALLATION FLAG
	AX = FF13h
	CL = new state (00h off, 01h on)
SeeAlso: AX=FF10h
--------N-2FFF14-----------------------------
INT 2F - TopWare Network OS v5.10+ - START BACKGROUND RECEIVE VIDEO DATA
	AX = FF14h
Note:	this function is only available on workstations, not on the server
SeeAlso: AX=FF10h,AX=FF15h
--------N-2FFF15-----------------------------
INT 2F - TopWare Network OS v5.10+ - END BACKGROUND RECEIVE VIDEO DATA
	AX = FF15h
Note:	this function is only available on workstations, not on the server
SeeAlso: AX=FF10h,AX=FF14h
--------N-2FFF16-----------------------------
INT 2F - TopWare Network OS v5.10+ - SET CONTROL NUMBER OF "SHOW" SCREEN
	AX = FF16h
	BL = which to set (00h TopShow, FFh TopTerm)
	CX = destination screen
	    0000h all stations
	    0000h-00FFh (TopTerm only) send to group CL
	    8001h-80FEh send to station CL
SeeAlso: AX=FF18h
--------N-2FFF18-----------------------------
INT 2F - TopWare Network OS v5.10+ - SEND FULL SCREEN OF DATA FOR TopShow
	AX = FF18h
SeeAlso: AX=FF00h,AX=FF16h,AX=FF27h
--------N-2FFF23-----------------------------
INT 2F - TopWare Network OS v5.10+ - CLOSE SPOOL FILES AND START PRINTING
	AX = FF23h
SeeAlso: AX=FF00h
--------N-2FFF27-----------------------------
INT 2F - TopWare Network OS v5.10+ - GET "SHOW" TYPE
	AX = FF27h
Return: AL = type (00h complete version, 01h simple version)
	BL = "show" functions flag (00h disabled, 01h enabled)
SeeAlso: AX=FF16h,AX=FF18h
--------D-30---------------------------------
INT 30 - (NOT A VECTOR!) - DOS 1+ - FAR JMP instruction for CP/M-style calls
   the CALL 5 entry point does a FAR jump to here
Note:	under DOS 2+, the instruction at PSP:0005 points two bytes too low in
	  memory
SeeAlso: INT 21/AH=26h
--------V-30---------------------------------
INT 30 - QRIP/TSR - USED BY GRAPHICS LIBRARY
Program: QRIP/TSR is a shareware TSR by Shane Hathaway implementing the Remote
	  Imaging Protocol (RIP, RIPscrip) used by several BBS systems to
	  provide a graphical user interface
SeeAlso: INT 2F/AX=ACF0h
--------D-31---------------------------------
INT 31 - overwritten by CP/M jump instruction in INT 30
--------v-31---------------------------------
INT 31 - VIRUS - "Vacsina" series - INSTALLATION CHECK (NOT A VECTOR!)
Note:	if one of the Vacsina viruses is resident, the low byte of this
	  interrupt still contains the last byte of the INT 30 CP/M JMP
	  instruction, but the remaining three bytes are 7Fh 39h followed
	  by the Vacsina version number
SeeAlso: INT 21/AX=FFFFh"VIRUS",INT 32"VIRUS"
--------E-310000-----------------------------
INT 31 P - DPMI 0.9+ - ALLOCATE LDT DESCRIPTORS
	AX = 0000h
	CX = number of descriptors to allocate
Return: CF clear if successful
	    AX = base selector
	CF set on error
	    AX = error code (DPMI 1.0+) (see #1810)
Notes:	DPMI is the DOS Protected-Mode Interface
	the base and limit of the returned descriptors will be 0, and the type
	  will be "data"
	add the value returned by INT 31/AX=0003h to move to subsequent
	  descriptors if multiple descriptors were allocated
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0001h,AX=000Dh,INT 21/AX=3501h

(Table 1810)
Values for DPMI 1.0 error code:
 0000h-7FFFh DOS error passed through by DPMI
 8001h	unsupported function
 8002h	object in wrong state for function
 8003h	system integrity would be endangered
 8004h	deadlock detected
 8005h	pending serialization request cancelled
 8010h	out of DPMI internal resources
 8011h	descriptor unavailable
 8012h	linear memory unavailable
 8013h	physical memory unavailable
 8014h	backing store unavailable
 8015h	callback unavailable
 8016h	handle unavailable
 8017h	maximum lock count exceeded
 8018h	shared memory already serialized exclusively by another
 8019h	shared memory already serialized shared by another client
 8021h	invalid value for numeric or flag parameter
 8022h	invalid segment selector
 8023h	invalid handle
 8024h	invalid callback
 8025h	invalid linear address
 8026h	request not supported by hardware
--------E-310001-----------------------------
INT 31 P - DPMI 0.9+ - FREE LDT DESCRIPTOR
	AX = 0001h
	BX = selector to free
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8022h) (see #1810)
Notes:	only one descriptor is freed per call
	the program's initial CS, DS, and SS descriptors may be freed
	(DPMI 1.0+) any segment registers containing the freed selector are
	  set to 0000h
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0000h,AX=000Ah,AX=000Dh,INT 21/AX=3502h
--------E-310002-----------------------------
INT 31 P - DPMI 0.9+ - SEGMENT TO DESCRIPTOR
	AX = 0002h
	BX = real mode segment
Return: CF clear if successful
	    AX = selector corresponding to real mode segment (64K limit)
	CF set on error
	    AX = error code (DPMI 1.0+) (8011h) (see #1810)
Notes:	multiple calls for the same real mode segment return the same selector
	the returned descriptor can never be modified or freed
	not supported by MS Windows 3.0 in Standard mode
--------E-310003-----------------------------
INT 31 P - DPMI 0.9+ - GET NEXT SELECTOR INCREMENT VALUE
	AX = 0003h
Return: CF clear
	    AX = value to add to get next sequential selector
Notes:	the increment will be a power of two
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0000h
--------E-310004-----------------------------
INT 31 P - DPMI 0.9+ - LOCK SELECTOR
	AX = 0004h
	BX = selector to lock (prevent paging)
Return: ???
Note:	although marked as reserved in versions 0.9 and 1.0 of the DPMI
	  specification, this function is called by MS Windows TASKMAN,
	  PROGMAN, and KERNEL
SeeAlso: AX=0005h,AX=0600h
--------E-310005-----------------------------
INT 31 P - DPMI 0.9+ - UNLOCK SELECTOR
	AX = 0005h
	BX = selector to unlock (permit paging)
Return: ???
Note:	although marked as reserved in versions 0.9 and 1.0 of the DPMI
	  specification, this function is called by MS Windows TASKMAN,
	  PROGMAN, and KERNEL
SeeAlso: AX=0004h,AX=0601h
--------E-310006-----------------------------
INT 31 P - DPMI 0.9+ - GET SEGMENT BASE ADDRESS
	AX = 0006h
	BX = selector
Return: CF clear if successful
	    CX:DX = linear base address of segment
	CF set on error
	    AX = error code (DPMI 1.0+) (8022h) (see #1810)
Note:	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0007h,INT 21/AX=3504h
--------E-310007-----------------------------
INT 31 P - DPMI 0.9+ - SET SEGMENT BASE ADDRESS
	AX = 0007h
	BX = selector
	CX:DX = linear base address
Return: CF clear if successful
	CF set on error
		 AX = error code (DPMI 1.0+) (8022h,8025h) (see #1810)
Notes:	only modify descriptors allocated with INT 31/AX=0000h
	only the low 24 bits of the address will be used by 16-bit DPMI
	  implementations even on a 386 or higher
	DPMI 1.0+ automatically reloads any segment registers containing the
	  selector being modified
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0006h,AX=0008h,AX=0009h,AX=000Ch,INT 21/AX=3503h
SeeAlso: INT 21/AH=E9h"OS/286",INT 2C/AX=0002h
--------E-310008-----------------------------
INT 31 P - DPMI 0.9+ - SET SEGMENT LIMIT
	AX = 0008h
	BX = selector
	CX:DX = segment limit
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8021h,8022h,8025h) (see #1810)
Notes:	CX must be zero for 16-bit DPMI implementations
	limits greater than 1MB must be page aligned (low 12 bits set)
	only modify descriptors allocated with INT 31/AX=0000h
	DPMI 1.0+ automatically reloads any segment registers containing the
	  selector being modified
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0007h,AX=0009h,AX=000Ch,INT 21/AX=3505h,INT 21/AH=E9h"OS/286"
SeeAlso: INT 2C/AX=0003h,#0377 at INT 15/AH=89h
--------E-310009-----------------------------
INT 31 P - DPMI 0.9+ - SET DESCRIPTOR ACCESS RIGHTS
	AX = 0009h
	BX = selector
	CL = access rights/type byte (see #0378 at INT 15/AH=89h)
	CH = 80386 extended rights/type byte (see #0379 at INT 15/AH=89h)
	    (32-bit DPMI implementations only)
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8021h,8022h,8025h) (see #1810)
Notes:	if the Present bit is clear, CL bits 0-3 may have any value
	DPMI 1.0+ automatically reloads any segment registers containing the
	  selector being modified
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0007h,AX=0008h,AX=000Ch,INT 21/AX=2514h,INT 2C/AX=0004h
SeeAlso: INT 2C/AX=0005h
--------E-31000A-----------------------------
INT 31 P - DPMI 0.9+ - CREATE ALIAS DESCRIPTOR
	AX = 000Ah
	BX = selector
Return: CF clear if successful
		 AX = new data selector
	CF set on error
	    AX = error code (DPMI 1.0+) (8011h,8022h) (see #1810)
Notes:	fails if selector in BX is not a code segment or is invalid
	use INT 31/AX=0001h to free new selector
	future changes to the original selector will not be reflected in the
	  returned alias selector
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0001h
--------E-31000B-----------------------------
INT 31 P - DPMI 0.9+ - GET DESCRIPTOR
	AX = 000Bh
	BX = LDT selector
	ES:(E)DI -> 8-byte buffer for copy of descriptor
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (DPMI 1.0+) (8022h) (see #1810)
Notes:	16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=000Ch
--------E-31000C-----------------------------
INT 31 P - DPMI 0.9+ - SET DESCRIPTOR
	AX = 000Ch
	BX = LDT selector
	ES:(E)DI -> 8-byte buffer containing descriptor
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8021h,8022h,8025h) (see #1810)
Notes:	16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI
	only modify descriptors allocated with INT 31/AX=0000h
	DPMI 1.0+ automatically reloads any segment registers containing the
	  selector being modified
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=000Bh
--------E-31000D-----------------------------
INT 31 P - DPMI 0.9+ - ALLOCATE SPECIFIC LDT DESCRIPTOR
	AX = 000Dh
	BX = LDT selector
Return: CF clear if successful
	    descriptor allocated
	CF set on error
	    AX = error code (DPMI 1.0+) (8011h,8022h) (see #1810)
Notes:	free descriptor with INT 31/AX=0001h
	the first 16 descriptors (04h-7Ch) are reserved for this function, but
	  some may already be in use by other applications under DPMI 0.9;
	  DPMI 1.0 guarantees 16 descriptors per client
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0000h,AX=0001h
--------E-31000E-----------------------------
INT 31 P - DPMI 1.0+ - GET MULTIPLE DESCRIPTORS
	AX = 000Eh
	CX = number of descriptors to copy
	ES:(E)DI -> descriptor buffer (see #1811)
Return: CF clear if successful
	    descriptors copied
	CF set on error
	    AX = error code (8022h) (see #1810)
	    CX = number of descriptors successfully copied
Notes:	16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI
	if the function fails, the first CX descriptors are valid; the
	  remainder are not modified
SeeAlso: AX=000Bh,AX=000Fh

Format of DPMI descriptor buffer entry (one per descriptor to get):
Offset	Size	Description	(Table 1811)
 00h	WORD	selector (set by client)
 02h	QWORD	descriptor (set by host)
--------E-31000F-----------------------------
INT 31 P - DPMI 1.0+ - SET MULTIPLE DESCRIPTORS
	AX = 000Fh
	CX = number of descriptors to copy
	ES:(E)DI -> descriptor buffer (see #1812)
Return: CF clear if successful
	    descriptors copied
	CF set on error
	    AX = error code (8021h,8022h,8025h) (see #1810)
	    CX = number of descriptors successfully copied
Notes:	16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI
	if the function fails, the first CX descriptors are valid; the
	  remainder are not modified
	DPMI 1.0+ automatically reloads any segment registers containing a
	  selector being modified
SeeAlso: AX=000Ch,AX=000Eh

Format of DPMI descriptor buffer entry (one per descriptor to set):
Offset	Size	Description	(Table 1812)
 00h	WORD	selector
 02h	QWORD	descriptor
--------E-310100-----------------------------
INT 31 P - DPMI 0.9+ - ALLOCATE DOS MEMORY BLOCK
	AX = 0100h
	BX = number of paragraphs to allocate
Return: CF clear if successful
	    AX = real mode segment of allocated block
	    DX = first selector for allocated block
	CF set on error
	    AX = DOS error code (07h,08h) (see #0885 at INT 21/AH=59h)
		(DPMI 1.0+) DPMI error code (8011h) (see #1810)
	    BX = size (in paragraphs) of largest available block
Notes:	multiple contiguous selectors are allocated for blocks of more than 64K
	  if the caller is a 16-bit program
	never modify or deallocate returned descriptors
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0101h,AX=0501h
--------E-310101-----------------------------
INT 31 P - DPMI 0.9+ - FREE DOS MEMORY BLOCK
	AX = 0101h
	DX = selector of block
Return: CF set if successful
	CF set on error
	    AX = DOS error code (07h,09h) (see #0885 at INT 21/AH=59h)
Notes:	all descriptors allocated for the block are automatically freed
	DPMI 1.0+ automatically zeros any segment registers containing a
	  selector freed by this function
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0100h,AX=0102h,AX=0502h
--------E-310102-----------------------------
INT 31 P - DPMI 0.9+ - RESIZE DOS MEMORY BLOCK
	AX = 0102h
	BX = new block size in paragraphs
	DX = selector of block
Return: CF clear if successful
	CF set on error
	    AX = DOS error code (07h,08h,09h) (see #0885 at INT 21/AH=59h)
		(DPMI 1.0+) DPMI error code (8011h,8022h) (see #1810)
	    BX = maximum block size (in paragraphs) possible
Notes:	increasing the size of a block past a 64K boundary will fail if the
	  next descriptor in the LDT is already in use
	shrinking a block past a 64K boundary will cause some selectors to be
	  freed; DPMI 1.0+ automatically zeros any segment registers containing
	  a selector freed by this function
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0100h
--------E-310200-----------------------------
INT 31 P - DPMI 0.9+ - GET REAL MODE INTERRUPT VECTOR
	AX = 0200h
	BL = interrupt number
Return: CF clear
	CX:DX = segment:offset of real mode interrupt handler
Note:	the DPMI implementation is required to support all 256 vectors
SeeAlso: AX=0201h,AX=0204h,INT 21/AX=2503h
--------E-310201-----------------------------
INT 31 P - DPMI 0.9+ - SET REAL MODE INTERRUPT VECTOR
	AX = 0201h
	BL = interrupt number
	CX:DX = segment:offset of real mode handler
Return: CF clear
Note:	all memory that may be touched by a hardware interrupt handler must be
	  locked down with INT 31/AX=0600h
SeeAlso: AX=0200h,AX=0205h,AX=0600h,INT 21/AX=2505h
--------E-310202-----------------------------
INT 31 P - DPMI 0.9+ - GET PROCESSOR EXCEPTION HANDLER VECTOR
	AX = 0202h
	BL = exception number (00h-1Fh)
Return: CF clear if successful
	    CX:(E)DX = selector:offset of handler
	CF set on error
	    AX = error code (DPMI 1.0+) (8021h) (see #1810)
Notes:	16-bit programs receive the pointer in CX:DX, 32-bit programs in CX:EDX
	DPMI 1.0+ supports this function only for backward compatibility; use
		AX=0210h or AX=0211h instead
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0203h,AX=0210h,AX=0211h,INT 2F/AX=FB42h/BX=0021h
--------E-310203-----------------------------
INT 31 P - DPMI 0.9+ - SET PROCESSOR EXCEPTION HANDLER VECTOR
	AX = 0203h
	BL = exception number (00h-1Fh)
	CX:(E)DX = selector:offset of handler
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8021h,8022h) (see #1810)
Notes:	32-bit programs must supply an offset in EDX and use a 32-bit interrupt
	  stack frame on chaining to the next exception handler
	the handler should return using a FAR return
	all fault stack frames contain an error code, but it is only valid for
	  exceptions 08h and 0Ah-0Eh
	handlers will only be called if the exception occurs in protected mode,
	  and the DPMI host does not transparently handle the exception
	the handler may change certain values on the stack frame
	  (see #1813,#1814)
	DPMI 1.0+ supports this function only for backward compatibility; use
	   AX=0212h or AX=0213h instead
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0202h,AX=0212h,AX=0213h,INT 2F/AX=FB42h/BX=0022h

Format of stack frame for 16-bit programs: (offset from SS:SP)
Offset	Size	Description	(Table 1813)
 00h	DWORD	return CS:IP (do not change)
 04h	WORD	error code
 06h	DWORD	CS:IP of exception
 0Ah	WORD	flags
 0Ch	DWORD	SS:SP

Format of stack frame for 32-bit programs: (offset from SS:ESP)
Offset	Size	Description	(Table 1814)
 00h	DWORD	return EIP (do not change)
 04h	WORD	return CS selector (do not change)
 06h	WORD	reserved (do not change)
 08h	DWORD	error code
 0Ch	DWORD	EIP of exception
 10h	WORD	CS selector of exception
 12h	WORD	reserved (do not change)
 14h	DWORD	EFLAGS
 18h	DWORD	ESP
 1Ch	WORD	SS
 1Eh	WORD	reserved (do not change)
--------E-310204-----------------------------
INT 31 P - DPMI 0.9+ - GET PROTECTED MODE INTERRUPT VECTOR
	AX = 0204h
	BL = interrupt number
Return: CF clear
	CX:(E)DX = selector:offset of handler
Notes:	16-bit programs use CX:DX, 32-bit programs use CX:EDX
	DPMI implementations are required to support all 256 vectors
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0200h,AX=0205h,INT 21/AX=2502h,INT 2C/AX=0006h
SeeAlso: INT 2F/AX=FB42h/BX=0024h
--------E-310205-----------------------------
INT 31 P - DPMI 0.9+ - SET PROTECTED MODE INTERRUPT VECTOR
	AX = 0205h
	BL = interrupt number
	CX:(E)DX = selector:offset of handler
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8022h) (see #1810)
Notes:	16-bit programs use CX:DX, 32-bit programs use CX:EDX
	32-bit programs must use a 32-bit interrupt stack frame when chaining
	  to the next handler
	DPMI implementations are required to support all 256 vectors
	hardware interrupts are reflected to the virtual machine's primary
	  client, software interrupts to the current client
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0201h,AX=0204h,INT 21/AX=2504h,INT 2C/AX=0007h
SeeAlso: INT 2F/AX=FB42h/BX=0025h
--------E-310210-----------------------------
INT 31 P - DPMI 1.0+ - GET PROTECTED MODE EXTENDED PROCESSOR EXCEPTION HANDLER
	AX = 0210h
	BL = exception number (00h-1Fh)
Return: CF clear if successful
	    CX:(E)DX = selector:offset of exception handler
	CF set on error
	    AX = error code (8021h) (see #1810)
Note:	DPMI host reflects exception to current client's handler
SeeAlso: AX=0202h,AX=0211h,AX=0212h
--------E-310211-----------------------------
INT 31 P - DPMI 1.0+ - GET REAL MODE EXTENDED PROCESSOR EXCEPTION HANDLER
	AX = 0211h
	BL = exception number (00h-1Fh)
Return: CF clear if successful
	    CX:(E)DX = selector:offset of exception handler
	CF set on error
	    AX = error code (8021h) (see #1810)
Notes:	returns address of protected-mode handler for real-mode exception
	DPMI host performs a switch to protected mode, reflects the exception
	  to the virtual machine's primary client, and returns to real mode
	  on the handler's completion
SeeAlso: AX=0202h,AX=0210h,AX=0213h
--------E-310212-----------------------------
INT 31 P - DPMI 1.0+ - SET PROTECTED MODE EXTENDED PROCESSOR EXCEPTION HANDLER
	AX = 0212h
	BL = exception or fault number (00h-1Fh)
	CX:(E)DX = exception handler selector:offset
Return: CF clear if successful
	CF set on error
	    AX = error code (8021h,8022h) (see #1810)
Note:	DPMI host sends exception to current client's handler
SeeAlso: AX=0203h,AX=0210h,AX=0213h
--------E-310213-----------------------------
INT 31 P - DPMI 1.0+ - SET REAL MODE EXTENDED PROCESSOR EXCEPTION HANDLER
	AX = 0213h
	BL = exception or fault number (00h-1Fh)
	CX:(E)DX = exception handler selector:offset
Return: CF clear if successful
	CF set on error
	    AX = error code (8021h,8022h) (see #1810)
Notes:	specifies address of protected-mode handler for real-mode exception
	DPMI host performs a switch to protected mode, reflects the exception
	  to the virtual machine's primary client, and returns to real mode
	  on the handler's completion
SeeAlso: AX=0203h,AX=0211h,AX=0212h
--------E-310300-----------------------------
INT 31 P - DPMI 0.9+ - SIMULATE REAL MODE INTERRUPT
	AX = 0300h
	BL = interrupt number
	BH = flags
	    bit 0: reset the interrupt controller and A20 line (DPMI 0.9)
		    reserved, must be 0 (DPMI 1.0+)
	    others: reserved, must be 0
	CX = number of words to copy from protected mode to real mode stack
	ES:(E)DI = selector:offset of real mode call structure (see #1815)
Return: CF clear if successful
	    real mode call structure modified (all fields except SS:SP, CS:IP
	      filled with return values from real mode interrupt)
	CF set on error
	    AX = error code (DPMI 1.0+) (8012h,8013h,8014h,8021h)(see #1810)
	protected mode stack unchanged
Notes:	16-bit programs use ES:DI as pointer, 32-bit programs use ES:EDI
	CS:IP in the real mode call structure is ignored for this call,
	  instead, the indicated interrupt vector is used for the address
	the flags in the call structure are pushed on the real mode stack to
	  form an interrupt stack frame, and the trace and interrupt flags are
	  clear on entry to the handler
	DPMI will provide a small (30 words) real mode stack if SS:SP is zero
	the real mode handler must return with the stack in the same state as
	  it was on being called
SeeAlso: AX=0302h,INT 21/AX=2511h,INT 21/AH=E3h"OS/286",INT 2C/AX=0026h
SeeAlso: INT 2F/AX=FB42h/BX=000Dh

Format of DPMI real mode call structure:
Offset	Size	Description	(Table 1815)
 00h	DWORD	EDI
 04h	DWORD	ESI
 08h	DWORD	EBP
 0Ch	DWORD	reserved (00h)
 10h	DWORD	EBX
 14h	DWORD	EDX
 18h	DWORD	ECX
 1Ch	DWORD	EAX
 20h	WORD	flags
 22h	WORD	ES
 24h	WORD	DS
 26h	WORD	FS
 28h	WORD	GS
 2Ah	WORD	IP
 2Ch	WORD	CS
 2Eh	WORD	SP
 30h	WORD	SS
--------E-310301-----------------------------
INT 31 P - DPMI 0.9+ - CALL REAL MODE PROCEDURE WITH FAR RETURN FRAME
	AX = 0301h
	BH = flags
	    bit 0: reset the interrupt controller and A20 line (DPMI 0.9)
		    reserved, must be 0 (DPMI 1.0+)
	    others: reserved must be 0
	CX = number of words to copy from protected mode to real mode stack
	ES:(E)DI = selector:offset of real mode call structure
		  (see #1815 at INT 31/AX=0300h)
Return: CF clear if successful
	    real mode call structure modified (all fields except SS:SP, CS:IP
	      filled with return values from real mode interrupt)
	CF set on error
	    AX = error code (DPMI 1.0+) (8012h,8013h,8014h,8021h)(see #1810)
	protected mode stack unchanged
Notes:	16-bit programs use ES:DI as pointer, 32-bit programs use ES:EDI
	the real mode procedure must exit with a FAR return
	DPMI will provide a small (30 words) real mode stack if SS:SP is zero
	the real mode handler must return with the stack in the same state as
	  it was on being called
SeeAlso: AX=0300h,AX=0302h,INT 21/AX=250Eh,INT 21/AH=E1h"OS/286"
SeeAlso: INT 2C/AX=0025h
--------E-310302-----------------------------
INT 31 P - DPMI 0.9+ - CALL REAL MODE PROCEDURE WITH IRET FRAME
	AX = 0302h
	BH = flags
	    bit 0: reset the interrupt controller and A20 line (DPMI 0.9)
		    reserved, must be 0 (DPMI 1.0+)
	    others: reserved, must be 0
	CX = number of words to copy from protected mode to real mode stack
	ES:(E)DI = selector:offset of real mode call structure
		  (see #1815 at INT 31/AX=0300h)
Return: CF clear if successful
	    real mode call structure modified (all fields except SS:SP, CS:IP
	      filled with return values from real mode interrupt)
	CF set on error
	    AX = error code (DPMI 1.0+) (8012h,8013h,8014h,8021h)(see #1810)
	protected mode stack unchanged
Notes:	16-bit programs use ES:DI as pointer, 32-bit programs use ES:EDI
	the flags in the call structure are pushed on the real mode stack to
	  form an interrupt stack frame, and the trace and interrupt flags are
	  clear on entry to the handler
	the real mode procedure must exit with an IRET
	DPMI will provide a small (30 words) real mode stack if SS:SP is zero
	the real mode handler must return with the stack in the same state as
	  it was on being called
SeeAlso: AX=0300h
--------E-310303-----------------------------
INT 31 P - DPMI 0.9+ - ALLOCATE REAL MODE CALLBACK ADDRESS
	AX = 0303h
	DS:(E)SI = selector:offset of procedure to call
	ES:(E)DI = selector:offset of real mode call structure (see #1815)
Return: CF clear if successful
	    CX:DX = segment:offset of real mode call address (see #1816)
	CF set on error
	    AX = error code (DPMI 1.0+) (8015h) (see #1810)
Notes:	the real mode call structure is static, causing reentrancy problems;
	  its contents are only valid at the time of a callback
	the called procedure must modify the real mode CS:IP before returning
	values are returned to real mode by modifying the real mode call struc
	DPMI hosts must provide at least 16 callbacks per client
	the limited DPMI host built into Phar Lap's 286|DOS-Extender v2.5 does
	  not support this function
SeeAlso: AX=0304h,AX=0C00h

(Table 1816)
Values DPMI real-mode callback procedure is called with:
	DS:(E)SI = selector:offset of real mode SS:SP
	ES:(E)DI = selector:offset of real mode call structure
	SS:(E)SP = locked protected mode API stack
	interrupts disabled
Return: (with IRET)
	ES:(E)DI = selector:offset of real mode call structure to restore
--------E-310304-----------------------------
INT 31 P - DPMI 0.9+ - FREE REAL MODE CALLBACK ADDRESS
	AX = 0304h
	CX:DX = real mode callback address
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8024h) (see #1810)
Note:	the limited DPMI host built into Phar Lap's 286|DOS-Extender v2.5 does
	  not support this function
SeeAlso: AX=0303h
--------E-310305-----------------------------
INT 31 P - DPMI 0.9+ - GET STATE SAVE/RESTORE ADDRESSES
	AX = 0305h
Return: CF clear
	AX = size in bytes of state buffer
	BX:CX = real mode address of procedure to save/restore state
	SI:(E)DI = protected mode procedure to save/restore state (see #1817)
Notes:	the buffer size will be zero if it is not necessary to preserve state
	16-bit programs should call SI:DI, 32-bit programs should call SI:EDI
	this function is only needed if using the raw mode switch service
SeeAlso: AX=0306h

(Table 1817)
Call DPMI state-save procedures with:
	AL = direction
	    00h save state
	    01h restore state
	ES:(E)DI -> state buffer
Return: all registers preserved
--------E-310306-----------------------------
INT 31 P - DPMI 0.9+ - GET RAW MODE SWITCH ADDRESSES
	AX = 0306h
Return: CF clear
	BX:CX -> procedure to switch from real to protected mode (see #1818)
	SI:(E)DI -> procedure to switch from protected to real mode
Notes:	16-bit programs should jump to SI:DI, 32-bit programs should use SI:EDI
	the caller must save and restore the state of the task with AX=0305h
	not supported by MS Windows 3.0 in Standard mode
SeeAlso: AX=0305h

(Table 1818)
Values to JUMP at mode-switch procedures with:
	AX = new DS
	CX = new ES
	DX = new SS
	(E)BX = new (E)SP
	SI:(E)DI = new CS:(E)IP
Notes:	BP/EBP is preserved across the call, but AX/EAX, BX/EBX, CX/ECX,
	  DX/EDX, SI/ESI, and DI/EDI will be undefined; FS and GS will be 0000h
	interrupts will stay disabled during the entire mode switch if they
	  are disabled on entry to the mode-switch procedure
--------E-310400-----------------------------
INT 31 P - DPMI 0.9+ - GET DPMI VERSION
	AX = 0400h
Return: CF clear
	AH = major version of DPMI spec supported
	AL = two-digit minor version of DPMI spec supported
	BX = DPMI host flags (see #1819)
	CL = processor type (02h=80286, 03h=80386, 04h=80486)
	DH = curr value of virtual master interrupt controller base interrupt
	DL = curr value of virtual slave interrupt controller base interrupt
BUG:	Windows NT versions from the March 1993 beta to at least the Final
	  release with fixes to CSD002 report version 0090h (0.144); this has
	  reportedly been corrected in the Windows NT 3.5 beta
SeeAlso: AX=0401h,INT 21/AX=250Ch,INT 2F/AX=1687h,INT 67/AX=DE0Ah

Bitfields for DPMI host flags:
Bit(s)	Description	(Table 1819)
 0	running under an 80386 (32-bit) implementation
 1	processor returns to real mode for reflected interrupts instead of V86
	  mode
 2	virtual memory supported
 3	reserved (undefined)
 4-15	reserved (zero)
--------E-310401-----------------------------
INT 31 P - DPMI 1.0+ - GET DPMI CAPABILITIES
	AX = 0401h
	ES:(E)DI -> 128-byte buffer for host description (see #1820)
Return: CF clear if successful
	    AX = capabilities (see #1821)
	    CX = reserved (00h)
		 DX = reserved (00h)
	    buffer filled
	CF set on error (DPMI 0.9 only)
SeeAlso: AX=0400h

Format of DPMI host description:
Offset	Size	Description	(Table 1820)
 00h	BYTE	host major version number
 01h	BYTE	host minor version number
 02h 126 BYTEs	ASCIZ host vendor name

Bitfields for DPMI capabilities:
Bit(s)	Description	(Table 1821)
 0	paged accessed/dirty supported (see AX=0506h,AX=0507h)
 1	exceptions restartability supported
 2	device mapping supported (see AX=0508h)
 3	conventional memory mapping supported (see AX=0509h)
 4	demand zero-fill supported
 5	write-protect client capability supported
 6	write-protect host capability supported
 7-15	reserved
--------E-310500-----------------------------
INT 31 P - DPMI 0.9+ - GET FREE MEMORY INFORMATION
	AX = 0500h
	ES:(E)DI -> buffer for memory information (see #1822)
Return: CF clear
Notes:	16-bit programs use ES:DI, 32-bit programs use ES:EDI
	this function must be considered advisory because other applications
	  may affect the results at any time after the call
	fields not supported by the DPMI implementation are filled with
	  FFFFFFFFh
	DPMI 1.0+ supports this function solely for backward compatibility; use
	  AX=050Bh instead
	the limited DPMI host built into Phar Lap's 286|DOS-Extender v2.5 only
	  returns the first field in the memory information record
SeeAlso: AX=0501h,AX=050Bh,AX=0604h

Format of DPMI memory information:
Offset	Size	Description	(Table 1822)
 00h	DWORD	largest available block in bytes
 04h	DWORD	maximum unlocked page allocation
 08h	DWORD	maximum locked page allocation
 0Ch	DWORD	total linear address space in pages
 10h	DWORD	total unlocked pages
 14h	DWORD	free pages
 18h	DWORD	total physical pages
 1Ch	DWORD	free linear address space in pages
 20h	DWORD	size of paging file/partition in pages
 24h 12 BYTEs	reserved
--------E-310501-----------------------------
INT 31 P - DPMI 0.9+ - ALLOCATE MEMORY BLOCK
	AX = 0501h
	BX:CX = size in bytes
Return: CF clear if successful
	    BX:CX = linear address of block
	    SI:DI = memory block handle for resizing and freeing block
	CF set on error
	    AX = error code (DPMI 1.0+) (8012h-8014h,8016h,8021h)(see #1810)
Notes:	no selectors are allocated
	the memory block is allocated unlocked (can be locked with AX=0600h)
	allocations are often page granular (see AX=0604h)
	under MS Windows 3.10 Enhanced mode with paging enabled, it is possible
	  for this function to fail even if AX=0500h indicates that enough
	  memory is available
SeeAlso: AX=0000h,AX=0100h,AX=0500h,AX=0502h,AX=0503h,AX=0504h,AX=0D00h
SeeAlso: INT 2F/AX=FB42h/BX=0002h
--------E-310502-----------------------------
INT 31 P - DPMI 0.9+ - FREE MEMORY BLOCK
	AX = 0502h
	SI:DI = handle of memory block
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8023h) (see #1810)
Note:	any selectors allocated for the memory block must also be freed,
	  preferably before freeing the memory block
SeeAlso: AX=0001h,AX=0101h,AX=0501h,AX=0D01h
--------E-310503-----------------------------
INT 31 P - DPMI 0.9+ - RESIZE MEMORY BLOCK
	AX = 0503h
	BX:CX = new size in bytes (nonzero)
	SI:DI = handle of memory block
Return: CF clear if successful
	    BX:CX = new linear address
	    SI:DI = new handle of memory block
	CF set on error
	    AX = error code (DPMI 1.0+) (8012h-8014h,8016h,8021h,8023h)
		(see #1810)
Notes:	any selectors pointing at the block must be updated
	the previous memory block handle becomes invalid
	an error is returned if the new size is 0
SeeAlso: AX=0102h,AX=0501h,AX=0505h
--------E-310504-----------------------------
INT 31 P - DPMI 1.0+ - ALLOCATE LINEAR MEMORY BLOCK
	AX = 0504h
	EBX = page-aligned linear address of memory block (00000000h if any
	      address is acceptable)
	ECX = size in bytes (nonzero)
	EDX = flags
	    bit 0: set to create committed pages instead of uncommitted pages
	    bits 1-31 reserved (0)
Return: CF clear if successful
	    EBX = linear address of memory block
	    ESI = memory block handle
	CF set on error
	    AX = error code (8001h,8012h-8014h,8016h,8021h,8025h)(see #1810)
Note:	only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
SeeAlso: AX=0501h,AX=0505h
--------E-310505-----------------------------
INT 31 P - DPMI 1.0+ - RESIZE LINEAR MEMORY BLOCK
	AX = 0505h
	ESI = memory block handle
	ECX = new size in bytes (nonzero)
	EDX = flags
	    bit 0: create committed pages rather than uncommitted pages
	    bit 1: segment descriptor update required
		ES:EBX -> buffer containing array of WORDs with selectors
		EDI = number of selectors in array
	    bits 2-31 reserved (0)
Return: CF clear if successful
	    EBX = new linear base address
	    ESI = new memory block handle
	CF set on error
	    AX = error code (8001h,8012h-8014h,8016h,8021h,8023h)(see #1810)
Notes:	only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
	the old memory block handle becomes invalid
	if EDX bit 1 set and the block's base address is changed, DPMI updates
	  all descriptors for selectors in the update buffer which fall within
	  the memory block
SeeAlso: AX=0503h,AX=0504h
--------E-310506-----------------------------
INT 31 P - DPMI 1.0+ - GET PAGE ATTRIBUTES
	AX = 0506h
	ESI = memory block handle
	EBX = offset in memory block of first page
	ECX = number of pages
	ES:EDX -> array of WORDs to hold page attributes (see #1823)
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (8001h,8023h,8025h) (see #1810)
Notes:	only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
	if EBX is not page-aligned, it will be rounded down
SeeAlso: AX=0504h,AX=0507h,INT 21/AX=251Dh,INT 21/AX=EB00h

Bitfields for DPMI page attribute word:
Bit(s)	Description	(Table 1823)
 0-2	page type
	000 uncommitted
	001 committed
	010 mapped (see AX=0508h,AX=0509h)
	other currently unused
 3	page is read/write rather than read-only
 4	accessed/dirty bits supplied in bits 5 and 6
 5	page has been accessed (only valid if bit 4 set)
 6	page has been written (only valid if bit 4 set)
 7-15	reserved (0)
--------E-310507-----------------------------
INT 31 P - DPMI 1.0+ - MODIFY PAGE ATTRIBUTES
	AX = 0507h
	ESI = memory block handle
	EBX = offset in memory block of first page
	ECX = number of pages
	ES:EDX -> array of WORDs with new page attributes (see #1823)
Return: CF clear if successful
	CF set on error
	    AX = error code (8001h,8002h,8013h,8014h,8021h,8023h,8025h)
		(see #1810)
	    ECX = number of pages which have been set
Notes:	only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
	if EBX is not page-aligned, it will be rounded down
SeeAlso: AX=0504h,AX=0506h,INT 21/AX=251Eh
--------E-310508-----------------------------
INT 31 P - DPMI 1.0+ - MAP DEVICE IN MEMORY BLOCK
	AX = 0508h
	ESI = memory block handle
	EBX = page-aligned offset within memory block of page(s) to be mapped
	ECX = number of pages to map
	EDX = page-aligned physical address of device
Return: CF clear if successful
	CF set on error
	    AX = error code (8001h,8003h,8023h,8025h) (see #1810)
Notes:	only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
	support of this function is optional; hosts are also allowed to support
	  the function for some devices but not others
SeeAlso: AX=0504h,AX=0509h,AX=0800h,AX=0801h
--------E-310509-----------------------------
INT 31 P - DPMI 1.0+ - MAP CONVENTIONAL MEMORY IN MEMORY BLOCK
	AX = 0509h
	ESI = memory block handle
	EBX = page-aligned offset within memory block of page(s) to map
	ECX = number of pages to map
	EDX = page-aligned linear address of conventional (below 1M) memory
Return: CF clear if successful
	CF set on error
	    AX = error code (8001h,8003h,8023h,8025h) (see #1810)
Notes:	only supported by 32-bit DPMI hosts, but may be used by 16-bit clients
	support of this function is optional
SeeAlso: AX=0504h,AX=0508h,AX=0801h
--------E-31050A-----------------------------
INT 31 P - DPMI 1.0+ - GET MEMORY BLOCK SIZE AND BASE
	AX = 050Ah
	SI:DI = memory block handle
Return: CF clear if successful
	    SI:DI = size in bytes
	    BX:CX = base address
	CF set on error
	    AX = error code (8023h) (see #1810)
SeeAlso: AX=0501h,AX=0504h
--------E-31050B-----------------------------
INT 31 P - DPMI 1.0+ - GET MEMORY INFORMATION
	AX = 050Bh
	ES:(E)DI -> 128-byte buffer for memory information (see #1824)
Return: CF clear if successful
	CF set on error (DPMI 0.9 only)
Note:	16-bit programs use ES:DI, 32-bit programs must use ES:EDI
SeeAlso: AX=0500h

Format of DPMI memory information:
Offset	Size	Description	(Table 1824)
 00h	DWORD	total allocated bytes of physical memory controlled by host
 04h	DWORD	total allocated bytes of virtual memory controlled by host
 08h	DWORD	total available bytes of virtual memory controlled by host
 0Ch	DWORD	total allocated bytes of virtual memory for curr virtual mach
 10h	DWORD	total available bytes of virtual memory for curr virtual mach
 14h	DWORD	total allocated bytes of virtual memory for current client
 18h	DWORD	total available bytes of virtual memory for current client
 1Ch	DWORD	total locked bytes for current client
 20h	DWORD	maximum locked bytes for current client
 24h	DWORD	highest linear address available to current client
 28h	DWORD	largest available memory block in bytes
 2Ch	DWORD	minimum allocation unit in bytes
 30h	DWORD	allocation alignment unit size in bytes
 34h 76 BYTEs	reserved (00h)
--------E-310600-----------------------------
INT 31 P - DPMI 0.9+ - LOCK LINEAR REGION
	AX = 0600h
	BX:CX = starting linear address
	SI:DI = size of region in bytes
Return: CF clear if successful
	CF set on error
	    none of the memory is locked
	    AX = error code (DPMI 1.0+) (8013h,8017h,8025h) (see #1810)
Notes:	pages at beginning and end will be locked if the region overlaps them
	may be called multiple times for a given page; the DPMI host keeps a
	  lock count for each page
SeeAlso: AX=0004h,AX=0601h,INT 21/AX=251Ah,INT 21/AX=EB06h
--------E-310601-----------------------------
INT 31 P - DPMI 0.9+ - UNLOCK LINEAR REGION
	AX = 0601h
	BX:CX = starting linear address
	SI:DI = size of region in bytes
Return: CF clear if successful
	CF set on error
		 none of the memory is unlocked
	    AX = error code (DPMI 1.0+) (8002h,8025h) (see #1810)
Notes:	pages at beginning and end will be unlocked if the region overlaps them
	memory whose lock count has not reached zero remains locked
SeeAlso: AX=0005h,AX=0600h,INT 21/AX=251Bh,INT 21/AX=EB07h
--------E-310602-----------------------------
INT 31 P - DPMI 0.9+ - MARK REAL MODE REGION AS PAGEABLE
	AX = 0602h
	BX:CX = starting linear address
	SI:DI = size of region in bytes
Return: CF clear if successful
	CF set on error
	    none of the memory is made pageable
	    AX = error code (DPMI 1.0+) (8002h,8025h) (see #1810)
Notes:	must relock all unlocked real mode memory before terminating process
	  for DPMI 0.9; DPMI 1.0+ automatically relocks real mode memory
	pages at beginning and end will be unlocked if the region overlaps them
	pageability of real mode pages is binary, not a count
SeeAlso: AX=0600h,AX=0603h
--------E-310603-----------------------------
INT 31 P - DPMI 0.9+ - RELOCK REAL MODE REGION
	AX = 0603h
	BX:CX = starting linear address
	SI:DI = size of region in bytes
Return: CF clear if successful
	CF set on error
	    none of the memory is relocked
	    AX = error code (DPMI 1.0+) (8002h,8013h,8025h) (see #1810)
Notes:	pages at beginning and end will be relocked if the region overlaps them
	pageability of real mode pages is binary, not a count
SeeAlso: AX=0602h
--------E-310604-----------------------------
INT 31 P - DPMI 0.9+ - GET PAGE SIZE
	AX = 0604h
Return: CF clear if successful
	    BX:CX = page size in bytes
	CF set on error
	    AX = error code (DPMI 1.0+) (see also #1810)
		8001h unsupported, 16-bit host
BUG:	the Borland C++ 3.1 DPMILOAD returns with CF clear but BX and CX
	  unchanged
--------E-310700-----------------------------
INT 31 Pu - DPMI 0.9+ - MARK PAGES AS PAGING CANDIDATES
	AX = 0700h
	BX:CX = starting linear page number
	SI:DI = number of pages to mark as paging candidates
Return: ???
Note:	although marked as reserved in versions 0.9 and 1.0 of the DPMI
	  specification, this function is called by MS Windows TASKMAN,
	  PROGMAN, and KERNEL
SeeAlso: AX=0701h,AX=0702h
--------E-310701-----------------------------
INT 31 Pu - DPMI 0.9+ - DISCARD PAGES
	AX = 0701h
	BX:CX = starting linear page number
	SI:DI = number of pages to discard
Return: ???
Note:	although marked as reserved in versions 0.9 and 1.0 of the DPMI
	  specification, this function is called by MS Windows TASKMAN,
	  PROGMAN, and KERNEL
SeeAlso: AX=0700h,AX=0703h
--------E-310702-----------------------------
INT 31 P - DPMI 0.9+ - MARK PAGE AS DEMAND PAGING CANDIDATE
	AX = 0702h
	BX:CX = starting linear address
	SI:DI = number of bytes to mark as paging candidates
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8025h) (see #1810)
Notes:	this function is advisory, and does not force immediate paging
	partial pages will not be discarded
SeeAlso: AX=0700h,AX=0703h
--------E-310703-----------------------------
INT 31 P - DPMI 0.9+ - DISCARD PAGE CONTENTS
	AX = 0703h
	BX:CX = starting linear address
	SI:DI = number of bytes to mark as discarded
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8025h) (see #1810)
Notes:	this function is advisory, and may be ignored by DPMI implementations
	partial pages will not be discarded
SeeAlso: AX=0701h,AX=0702h
--------E-310800-----------------------------
INT 31 P - DPMI 0.9+ - PHYSICAL ADDRESS MAPPING
	AX = 0800h
	BX:CX = physical address (should be above 1 MB)
	SI:DI = size in bytes
Return: CF clear if successful
	    BX:CX = linear address which maps the requested physical memory
	CF set on error
	    AX = error code (DPMI 1.0+) (8003h,8021h) (see #1810)
Notes:	implementations may refuse this call because it can circumvent protects
	the caller must build an appropriate selector for the memory
	do not use for memory mapped in the first megabyte
SeeAlso: AX=0002h,AX=0508h,AX=0509h,AX=0801h,INT 21/AX=250Ah,INT 21/AX=EB05h
--------E-310801-----------------------------
INT 31 P - DPMI 1.0+ - FREE PHYSICAL ADDRESS MAPPING
	AX = 0801h
	BX:CX = linear address returned by AX=0800h
Return: CF clear if successful
	CF set on error
	    AX = error code (8025h) (see #1810)
Note:	should be called at end of access to device mapped with AX=0800h
SeeAlso: AX=0508h,AX=0509h,AX=0800h,INT 21/AX=EB03h
--------E-310900-----------------------------
INT 31 P - DPMI 0.9+ - GET AND DISABLE VIRTUAL INTERRUPT STATE
	AX = 0900h
Return: CF clear
	virtual interrupts disabled
	AL = previous interrupt state (00h disabled, 01h enabled)
	AH preserved
Notes:	the previous state may be restored simply by executing another INT 31
	a CLI instruction may be used if the previous state is unimportant,
	  but should be assumed to be very slow due to trapping by the host
SeeAlso: AX=0901h,AX=0902h
--------E-310901-----------------------------
INT 31 P - DPMI 0.9+ - GET AND ENABLE VIRTUAL INTERRUPT STATE
	AX = 0901h
Return: CF clear
	virtual interrupts enabled
	AL = previous interrupt state (00h disabled, 01h enabled)
	AH preserved
Notes:	the previous state may be restored simply by executing another INT 31
	a STI instruction may be used if the previous state is unimportant,
	  but should be assumed to be very slow due to trapping by the host
SeeAlso: AX=0900h,AX=0902h
--------E-310902-----------------------------
INT 31 P - DPMI 0.9+ - GET VIRTUAL INTERRUPT STATE
	AX = 0902h
Return: CF clear
	AL = current interrupt state (00h disabled, 01h enabled)
Note:	should be used rather than PUSHF because that instruction yields the
	  physical interrupt state rather than the per-client virtualized
	  interrupt flag
SeeAlso: AX=0900h,AX=0901h
--------E-310A00-----------------------------
INT 31 P - DPMI 0.9+ - GET VENDOR SPECIFIC API ENTRY POINT
	AX = 0A00h
	DS:(E)SI -> case-sensitive ASCIZ vendor name or identifier
Return: CF clear if successful
	    ES:(E)DI -> FAR extended API entry point
	    DS, FS, GS, EAX, EBX, ECX, EDX, ESI, EBP destroyed
	CF set on error
	    AX = error code (DPMI 1.0+) (8001h) (see #1810)
Notes:	extended API parameters are vendor-specific
	DPMI 1.0+ supports this function solely for backward compatibility; use
	  INT 2F/AX=168Ah instead
	this function is not supported by MS Windows 3.10, BC++ 3.1 DPMILOAD,
	  or QDPMI v1.0x; use INT 2F/AX=168Ah instead.	It is supported by
	  386MAX v7.01.
SeeAlso: INT 2F/AX=168Ah
--------E-310B00-----------------------------
INT 31 P - DPMI 0.9+ - SET DEBUG WATCHPOINT
	AX = 0B00h
	BX:CX = linear address
	DL = size (1,2,4 bytes)
	DH = type (00h execute, 01h write, 02h read/write)
Return: CF clear if successful
	    BX = watchpoint handle
	CF set on error
		 AX = error code (DPMI 1.0+) (8016h,8021h,8025h) (see #1810)
SeeAlso: AX=0212h,AX=0601h
--------E-310B01-----------------------------
INT 31 P - DPMI 0.9+ - CLEAR DEBUG WATCHPOINT
	AX = 0B01h
	BX = watchpoint handle
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8023h) (see #1810)
Note:	the watchpoint handle is freed
SeeAlso: AX=0B00h
--------E-310B02-----------------------------
INT 31 P - DPMI 0.9+ - GET STATE OF DEBUG WATCHPOINT
	AX = 0B02h
	BX = watchpoint handle
Return: CF clear if successful
	    AX = status flags
		bit 0: watch point has been executed since AX=0B00h or AX=0B03h
	CF set on error
	    AX = error code (DPMI 1.0+) (8023h) (see #1810)
SeeAlso: AX=0B00h,AX=0B03h
--------E-310B03-----------------------------
INT 31 P - DPMI 0.9+ - RESET DEBUG WATCHPOINT
	AX = 0B03h
	BX = watchpoint handle
Return: CF clear if successful
	CF set on error
	    AX = error code (DPMI 1.0+) (8023h) (see #1810)
SeeAlso: AX=0B02h
--------E-310C00-----------------------------
INT 31 P - DPMI 1.0+ - INSTALL RESIDENT HANDLER INIT CALLBACK
	AX = 0C00h
	ES:(E)DI -> resident service provider structure (see #1825)
Return: CF clear if successful
	CF set on error
	    AX = error code (8015h,8021h,8025h) (see #1810 at AX=0000h)
Note:	calling this function declares an intent to provide resident
	  protected mode services after terminating with AX=0C01h
SeeAlso: AX=0303h,AX=0C01h

Format of DPMI resident service provider structure:
Offset	Size	Description	(Table 1825)
 00h	QWORD	descriptor for 16-bit data segment
 08h	QWORD	descriptor for 16-bit code segment (zeros if not supported)
 10h	WORD	offset of 16-bit callback procedure
 12h  2 BYTEs	reserved
 14h	QWORD	descriptor for 32-bit data segment
 1Ch	QWORD	descriptor for 32-bit code segment (zeros if not supported)
 24h	DWORD	offset of 32-bit callback procedure
--------E-310C01-----------------------------
INT 31 P - DPMI 1.0+ - TERMINATE AND STAY RESIDENT
	AX = 0C01h
	BL = return code
	DX = number of paragraphs of DOS memory to reserve (0 or >= 6)
Return: never
Notes:	should only be used if the program will only provide services to
	  other DPMI programs
	any protected mode memory remains allocated to the program unless
	  explicitly freed before this call
	must first call AX=0C00h or program will simply be terminated
SeeAlso: AX=0C00h,INT 21/AH=31h
--------E-310D00-----------------------------
INT 31 P - DPMI 1.0+ - ALLOCATE SHARED MEMORY
	AX = 0D00h
	ES:(E)DI -> shared memory allocation request structure (see #1826)
Return: CF clear if successful
	    request structure updated
	CF set on error
	    AX = error code (8012h,8013h,8014h,8016h,8021h) (see #1810)
Note:	first 16 bytes of memory block will be initialized to zeros on the
	  first allocation
SeeAlso: AX=0501h,AX=0D01h,AX=0D02h

Format of DPMI shared memory allocation request structure:
Offset	Size	Description	(Table 1826)
 00h	DWORD	requested length of shared memory block in bytes
 04h	DWORD	(ret) allocated length of block
 08h	DWORD	(ret) shared memory handle
 0Ch	DWORD	(ret) linear address of memory block
 10h	PWORD	selector:offset32 of ASCIZ name for memory block
		(name max 128 bytes)
 16h  2 BYTEs	reserved
 18h  4 BYTEs	reserved (00h)
--------E-310D01-----------------------------
INT 31 P - DPMI 1.0+ - FREE SHARED MEMORY
	AX = 0D01h
	SI:DI = shared memory block handle
Return: CF clear if successful
	CF set on error
	    AX = error code (8023h) (see #1810)
Notes:	handle becomes invalid after this call
	DPMI maintains separate global and virtual machine use counts for each
	  shared memory block; when the global use counts reaches zero, the
	  block is finally destroyed
SeeAlso: AX=0502h,AX=0D00h
--------E-310D02-----------------------------
INT 31 P - DPMI 1.0+ - SERIALIZE SHARED MEMORY
	AX = 0D02h
	SI:DI = shared memory block handle
	DX = flags
	    bit 0: return immediately rather than suspending if serialization
		  unavailable
	    bit 1: shared rather than exclusive serialization
	    bits 2-15 reserved (0)
Return: CF clear if successful
	CF set on error
	    AX = error code (8004h,8005h,8017h-8019h,8023h) (see #1810)
Notes:	an exclusive serialization blocks any other serialization attempts for
	  the same block by another virtual machine; a shared serialization
	  blocks attempts at exclusive serialization by another virtual machine
	hosts are not required to detect deadlock
	a client's interrupt handler can cancel a serialization call which
	  caused it to block by calling AX=0D03h
SeeAlso: AX=0D00h,AX=0D03h
--------E-310D03-----------------------------
INT 31 P - DPMI 1.0+ - FREE SERIALIZATION ON SHARED MEMORY
	AX = 0D03h
	SI:DI = shared memory block handle
	DX = flags
	    bit 0: release shared serialization rather than exclusive serialztn
	    bit 1: free pending serialization
	    bits 2-15 reserved (0)
Return: CF clear if successful
	CF set on error
	    AX = error code (8002h,8023h) (see #1810 at AX=0000h)
SeeAlso: AX=0D00h,AX=0D02h
--------E-310E00-----------------------------
INT 31 P - DPMI 1.0+ - GET COPROCESSOR STATUS
	AX = 0E00h
Return: CF clear
	AX = coprocessor status (see #1827)
Note:	supported by 386MAX v6.01, which otherwise only supports DPMI 0.9
SeeAlso: AX=0E01h

Bitfields for DPMI coprocessor status:
Bit(s)	Description	(Table 1827)
 0	numeric coprocessor enabled for current client
 1	client is emulating coprocessor
 2	numeric coprocessor is present
 3	host is emulating coprocessor instructions
 4-7	coprocessor type
	0000 none
	0010 80287
	0011 80387
	0100 80486 with numeric coprocessor
	other reserved
 8-15	not used
--------E-310E01-----------------------------
INT 31 P - DPMI 1.0+ - SET EMULATION
	AX = 0E01h
	BX = coprocessor flag bits (see #1828)
Return: CF clear if successful
	CF set on error
	    AX = error code (8026h) (see #1810 at AX=0000h)
Note:	supported by 386MAX v6.01, which otherwise only supports DPMI 0.9
SeeAlso: AX=0E00h

Bitfields for DPMI coprocessor flags:
Bit(s)	Description	(Table 1828)
 0	enable numeric coprocessor for current client
 1	client will emulate coprocessor
 2-15	not used
--------E-3157-------------------------------
INT 31 - Netroom3 DPMI.EXE v3.00 - ???
	AH = 57h
	AL = subfunction (at least 02h,03h,04h,05h,07h,08h,09h,0Ah)
	???
Return: ???
SeeAlso: INT 2C/AX=0000h"RM386"
--------E-315702-----------------------------
INT 31 - Netroom3 DPMI.EXE v3.00 - SWITCH TO PROTECTED MODE
	AX = 5702h
	DX = PSP segment of caller
	STACK: WORD	???
	       WORD	flags (bit 0 set if 32-bit program)
Return: as for DPMI mode-switch entry point (see #1441 at INT 2F/AX=1687h)
Note:	this function is called by the real-mode DPMI mode-switch entry point
SeeAlso: INT 2F/AX=1687h
--------v-32---------------------------------
INT 32 - VIRUS - reportedly used by "Tiny" Viruses
SeeAlso: INT 21/AX=FFFFh"VIRUS",INT 31"VIRUS",INT 44"VIRUS"
--------v-32---------------------------------
INT 32 - VIRUS - "Plovdiv 1.3"/"Damage 1.3" - ORIGINAL INT 21h VECTOR
SeeAlso: INT 31"VIRUS",INT 9E"VIRUS"
--------M-330000-----------------------------
INT 33 - MS MOUSE - RESET DRIVER AND READ STATUS
	AX = 0000h
Return: AX = status
	    0000h hardware/driver not installed
	    FFFFh hardware/driver installed
	BX = number of buttons
	    0000h other than two
	    0002h two buttons (many drivers)
	    0003h Mouse Systems/Logitech three-button mouse
	    FFFFh two buttons
Notes:	to use mouse on a Hercules-compatible monographics card in graphics
	  mode, you must first set 0040h:0049h to 6 for page 0 or 5 for page 1,
	  and then call this function.	Logitech drivers v5.01 and v6.00
	  reportedly do not correctly use Hercules graphics in dual-monitor
	  systems, while version 4.10 does.
	the Logitech mouse driver contains the signature string "LOGITECH"
	  three bytes past the interrupt handler; many of the Logitech mouse
	  utilities check for this signature.
	Logitech MouseWare v6.30 reportedly does not support CGA video modes
	  if no CGA is present when it is started and the video board is
	  later switched into CGA emulation
SeeAlso: AX=0011h,AX=0021h,AX=002Fh,INT 62/AX=007Ah,INT 74
--------M-330001-----------------------------
INT 33 - MS MOUSE v1.0+ - SHOW MOUSE CURSOR
	AX = 0001h
SeeAlso: AX=0002h,INT 16/AX=FFFEh,INT 62/AX=007Bh,INT 6F/AH=06h"F_TRACK_ON"
--------M-330002-----------------------------
INT 33 - MS MOUSE v1.0+ - HIDE MOUSE CURSOR
	AX = 0002h
Note:	multiple calls to hide the cursor will require multiple calls to
	  function 01h to unhide it.
SeeAlso: AX=0001h,AX=0010h,INT 16/AX=FFFFh,INT 62/AX=007Bh
SeeAlso: INT 6F/AH=08h"F_TRACK_OFF"
--------M-330003-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN POSITION AND BUTTON STATUS
	AX = 0003h
Return: BX = button status (see #1829)
	CX = column
	DX = row
Note:	in text modes, all coordinates are specified as multiples of the cell
	  size, typically 8x8 pixels
SeeAlso: AX=0004h,AX=000Bh,INT 2F/AX=D000h"ZWmous"

Bitfields for mouse button status:
Bit(s)	Description	(Table 1829)
 0	left button pressed if 1
 1	right button pressed if 1
 2	middle button pressed if 1 (Mouse Systems/Logitech/Genius)
--------M-330004-----------------------------
INT 33 - MS MOUSE v1.0+ - POSITION MOUSE CURSOR
	AX = 0004h
	CX = column
	DX = row
Note:	the row and column are truncated to the next lower multiple of the cell
	  size (typically 8x8 in text modes); however, some versions of the
	  Microsoft documentation incorrectly state that the coordinates are
	  rounded
SeeAlso: AX=0003h,INT 62/AX=0081h,INT 6F/AH=10h"F_PUT_SPRITE"
--------M-330005-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN BUTTON PRESS DATA
	AX = 0005h
	BX = button number (see #1830)
Return: AX = button states (see #1829)
	BX = number of times specified button has been pressed since last call
	CX = column at time specified button was last pressed
	DX = row at time specified button was last pressed
Note:	at least for the Genius mouse driver, the number of button presses
	  returned is limited to 7FFFh
SeeAlso: AX=0006h,INT 62/AX=007Ch

(Table 1830)
Values for mouse button number:
 0000h	left
 0001h	right
 0002h	middle (Mouse Systems/Logitech/Genius mouse)
--------M-330006-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN BUTTON RELEASE DATA
	AX = 0006h
	BX = button number (see #1830)
Return: AX = button states (see #1829)
	BX = number of times specified button has been released since last call
	CX = column at time specified button was last released
	DX = row at time specified button was last released
Note:	at least for the Genius mouse driver, the number of button releases
	  returned is limited to 7FFFh
SeeAlso: AX=0005h,INT 62/AX=007Ch
--------M-330007-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE HORIZONTAL CURSOR RANGE
	AX = 0007h
	CX = minimum column
	DX = maximum column
Note:	in text modes, the minimum and maximum columns are truncated to the
	  next lower multiple of the cell size, typically 8x8 pixels
SeeAlso: AX=0008h,AX=0010h,AX=0031h,INT 62/AX=0080h
SeeAlso: INT 6F/AH=0Ch"F_SET_LIMITS_X"
--------M-330008-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE VERTICAL CURSOR RANGE
	AX = 0008h
	CX = minimum row
	DX = maximum row
Note:	in text modes, the minimum and maximum rows are truncated to the
	  next lower multiple of the cell size, typically 8x8 pixels
SeeAlso: AX=0007h,AX=0010h,AX=0031h,INT 62/AX=0080h
SeeAlso: INT 6F/AH=0Eh"F_SET_LIMITS_Y"
--------M-330009-----------------------------
INT 33 - MS MOUSE v3.0+ - DEFINE GRAPHICS CURSOR
	AX = 0009h
	BX = column of cursor hot spot in bitmap (-16 to 16)
	CX = row of cursor hot spot (-16 to 16)
	ES:DX -> mask bitmap (see #1831)
Notes:	in graphics modes, the screen contents around the current mouse cursor
	  position are ANDed with the screen mask and then XORed with the
	  cursor mask
	the Microsoft mouse driver v7.04 and v8.20 uses only BL and CL, so the
	  hot spot row/column should be limited to -128..127
	Microsoft KnowledgeBase article Q19850 states that the high bit is
	  right-most, but that statement is contradicted by all other available
	  documentation
SeeAlso: AX=000Ah,AX=0012h,AX=002Ah,INT 62/AX=007Fh,INT 6F/AH=0Ah"F_DEF_MASKS"

Format of mouse mask bitmap:
Offset	Size	Description	(Table 1831)
 00h 16 WORDs	screen mask
 10h 16 WORDs	cursor mask
Note:	each word defines the sixteen pixels of a row, low bit rightmost
--------M-33000A-----------------------------
INT 33 - MS MOUSE v3.0+ - DEFINE TEXT CURSOR
	AX = 000Ah
	BX = hardware/software text cursor
	    0000h software
		CX = screen mask
		DX = cursor mask
	    0001h hardware
		CX = start scan line
		DX = end scan line
Note:	when the software cursor is selected, the character/attribute data at
	  the current screen position is ANDed with the screen mask and then
	  XORed with the cursor mask
SeeAlso: AX=0009h,INT 62/AX=007Eh
--------M-33000B-----------------------------
INT 33 - MS MOUSE v1.0+ - READ MOTION COUNTERS
	AX = 000Bh
Return: CX = number of mickeys mouse moved horizontally since last call
	DX = number of mickeys mouse moved vertically
Notes:	a mickey is the smallest increment the mouse can sense
	positive values indicate down/right
SeeAlso: AX=0003h,AX=001Bh,AX=0027h
--------M-33000C-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE INTERRUPT SUBROUTINE PARAMETERS
	AX = 000Ch
	CX = call mask (see #1832)
	ES:DX -> FAR routine (see #1833)
SeeAlso: AX=0018h

Bitfields for mouse call mask:
Bit(s)	Description	(Table 1832)
 0	call if mouse moves
 1	call if left button pressed
 2	call if left button released
 3	call if right button pressed
 4	call if right button released
 5	call if middle button pressed (Mouse Systems/Logitech/Genius mouse)
 6	call if middle button released (Mouse Systems/Logitech/Genius mouse)
 7-15	unused
Note:	some versions of the Microsoft documentation incorrectly state that CX
	  bit 0 means call if mouse cursor moves

(Table 1833)
Values interrupt routine is called with:
	AX = condition mask (same bit assignments as call mask)
	BX = button state
	CX = cursor column
	DX = cursor row
	SI = horizontal mickey count
	DI = vertical mickey count
Notes:	some versions of the Microsoft documentation erroneously swap the
	  meanings of SI and DI
	in text modes, the row and column will be reported as a multiple of
	  the character cell size, typically 8x8 pixels
--------M-33000D-----------------------------
INT 33 - MS MOUSE v1.0+ - LIGHT PEN EMULATION ON
	AX = 000Dh
SeeAlso: AX=000Eh,INT 10/AH=04h
--------M-33000E-----------------------------
INT 33 - MS MOUSE v1.0+ - LIGHT PEN EMULATION OFF
	AX = 000Eh
SeeAlso: AX=000Dh
--------M-33000F-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE MICKEY/PIXEL RATIO
	AX = 000Fh
	CX = number of mickeys per 8 pixels horizontally (default 8)
	DX = number of mickeys per 8 pixels vertically (default 16)
SeeAlso: AX=0013h,AX=001Ah,INT 62/AX=0082h
--------M-330010-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE SCREEN REGION FOR UPDATING
	AX = 0010h
	CX,DX = X,Y coordinates of upper left corner
	SI,DI = X,Y coordinates of lower right corner
Note:	mouse cursor is hidden in the specified region, and needs to be
	  explicitly turned on again
SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"Genius MOUSE",AX=0031h
--------M-330010-----------------------------
INT 33 - Genius MOUSE - DEFINE SCREEN REGION FOR UPDATING
	AX = 0010h
	ES:DX -> update region list (see #1834)
Notes:	mouse cursor is hidden in the specified region, and needs to be
	  explicitly turned on again
	this version of the call is described in an August 1988 version of the
	  Genius Mouse programmer's reference; it has been changed to conform
	  to the Microsoft version shown above by version 9.06 (and possibly
	  earlier versions)
SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"MS MOUSE"

Format of Genius Mouse update region list:
Offset	Size	Description	(Table 1834)
 00h	WORD	left-most column
 02h	WORD	top-most row
 04h	WORD	right-most column
 06h	WORD	bottom-most row
--------M-330011-----------------------------
INT 33 - Genius Mouse 9.06 - GET NUMBER OF BUTTONS
	AX = 0011h
Return: AX = FFFFh
	BX = number of buttons
SeeAlso: AX=0000h
--------M-330012-----------------------------
INT 33 - MS MOUSE - SET LARGE GRAPHICS CURSOR BLOCK
	AX = 0012h
	BH = cursor width in words
	CH = rows in cursor
	BL = horizontal hot spot (-16 to 16)
	CL = vertical hot spot (-16 to 16)
	ES:DX -> bit map of screen and cursor maps
Return: AX = FFFFh if successful
SeeAlso: AX=0009h,AX=002Ah,AX=0035h
--------M-330013-----------------------------
INT 33 - MS MOUSE v5.0+ - DEFINE DOUBLE-SPEED THRESHOLD
	AX = 0013h
	DX = threshold speed in mickeys/second, 0000h = default of 64/second
Note:	if speed exceeds threshold, the cursor's on-screen motion is doubled
SeeAlso: AX=000Fh,AX=001Bh,AX=002Ch
--------M-330014-----------------------------
INT 33 - MS MOUSE v3.0+ - EXCHANGE INTERRUPT SUBROUTINES
	AX = 0014h
	CX = call mask (see #1832)
	ES:DX -> FAR routine
Return: CX = call mask of previous interrupt routine
	ES:DX = FAR address of previous interrupt routine
SeeAlso: AX=000Ch,AX=0018h
--------M-330015-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN DRIVER STORAGE REQUIREMENTS
	AX = 0015h
Return: BX = size of buffer needed to store driver state
SeeAlso: AX=0016h,AX=0017h,AX=0042h
--------M-330016-----------------------------
INT 33 - MS MOUSE v6.0+ - SAVE DRIVER STATE
	AX = 0016h
	BX = size of buffer (see AX=0015h)
	ES:DX -> buffer for driver state
Note:	although not documented (since the Microsoft driver does not use it),
	  many drivers appear to require BX on input
SeeAlso: AX=0015h,AX=0017h
--------M-330017-----------------------------
INT 33 - MS MOUSE v6.0+ - RESTORE DRIVER STATE
	AX = 0017h
	BX = size of buffer (see AX=0015h)
	ES:DX -> buffer containing saved state
Notes:	although not documented (since the Microsoft driver does not use it),
	  many drivers appear to require BX on input
	some mouse drivers range-check the values in the saved state based on
	  the current video mode; thus, the video mode should be restored
	  before the mouse driver's state is restored
SeeAlso: AX=0015h,AX=0016h
--------M-330018-----------------------------
INT 33 - MS MOUSE v6.0+ - SET ALTERNATE MOUSE USER HANDLER
	AX = 0018h
	CX = call mask (see #1835)
	ES:DX -> FAR routine to be invoked on mouse events (see #1836)
Return: AX = status
	    0018h if successful
	    FFFFh on error
Notes:	up to three handlers can be defined by separate calls to this function,
	  each with a different combination of shift states in the call mask;
	  calling this function again with a call mask of 0000h undefines the
	  specified handler (official documentation); specifying the same
	  call mask and an address of 0000h:0000h undefines the handler (real
	  life)
	some versions of the documentation erroneously reverse the order of
	  the bits in the call mask
SeeAlso: AX=000Ch,AX=0014h,AX=0019h

Bitfields for mouse call mask:
Bit(s)	Description	(Table 1835)
 0	call if mouse moves
 1	call if left button pressed
 2	call if left button released
 3	call if right button pressed
 4	call if right button released
 5	call if shift button pressed during event
 6	call if ctrl key pressed during event
 7	call if alt key pressed during event
Note:	at least one of 5-7 must be set

(Table 1836)
Values user handler is called with:
	AX = condition mask (same bit assignments as call mask)
	BX = button state
	CX = cursor column
	DX = cursor row
	SI = horizontal mickey count
	DI = vertical mickey count
Return: registers preserved
Note:	in text modes, the row and column will be reported as a multiple of
	  the cell size, typically 8x8 pixels
--------M-330019-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN USER ALTERNATE INTERRUPT VECTOR
	AX = 0019h
	CX = call mask (see #1835)
Return: BX:DX = user interrupt vector
	CX = call mask (0000h if not found)
Note:	attempts to find a user event handler (defined by function 18h)
	  whose call mask matches CX
SeeAlso: AX=0018h
--------M-33001A-----------------------------
INT 33 - MS MOUSE v6.0+ - SET MOUSE SENSITIVITY
	AX = 001Ah
	BX = horizontal speed \
	CX = vertical speed   / (see AX=000Fh)
	DX = double speed threshold (see AX=0013h)
SeeAlso: AX=0013h,AX=001Bh,INT 62/AX=0082h
--------M-33001B-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN MOUSE SENSITIVITY
	AX = 001Bh
Return: BX = horizontal speed
	CX = vertical speed
	DX = double speed threshold
SeeAlso: AX=000Bh,AX=001Ah
--------M-33001C-----------------------------
INT 33 - MS MOUSE v6.0+ - SET INTERRUPT RATE
	AX = 001Ch
	BX = rate (see #1837)
Notes:	only available on InPort mouse
	values greater than 4 may cause unpredictable driver behavior

(Table 1837)
Values for mouse interrupt rate:
 00h	no interrupts allowed
 01h	30 per second
 02h	50 per second
 03h	100 per second
 04h	200 per second
--------M-33001D-----------------------------
INT 33 - MS MOUSE v6.0+ - DEFINE DISPLAY PAGE NUMBER
	AX = 001Dh
	BX = display page number
Note:	the cursor will be displayed on the specified page
SeeAlso: AX=001Eh
--------M-33001E-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN DISPLAY PAGE NUMBER
	AX = 001Eh
Return: BX = display page number
SeeAlso: AX=001Dh
--------M-33001F-----------------------------
INT 33 - MS MOUSE v6.0+ - DISABLE MOUSE DRIVER
	AX = 001Fh
Return: AX = status
	    001Fh successful
		ES:BX = INT 33 vector before mouse driver was first installed
	    FFFFh unsuccessful
Notes:	restores vectors for INT 10 and INT 71 (8086) or INT 74 (286/386)
	if you restore INT 33 to ES:BX, driver will be completely disabled
	many drivers return AX=001Fh even though the driver has been disabled
SeeAlso: AX=0020h
--------M-330020-----------------------------
INT 33 - MS MOUSE v6.0+ - ENABLE MOUSE DRIVER
	AX = 0020h
Return: AX = status
	    0020h successful
	    FFFFh unsuccessful
Notes:	restores vectors for INT 10h and INT 71h (8086) or INT 74h (286/386)
	  which were removed by function 1Fh
	Microsoft's documentation states that no value is returned
SeeAlso: AX=001Fh
--------M-330021-----------------------------
INT 33 - MS MOUSE v6.0+ - SOFTWARE RESET
	AX = 0021h
Return: AX = status
	    FFFFh if mouse driver installed
		BX = number of buttons (FFFFh = two buttons)
	    0021h if mouse driver not installed
Note:	this call is identical to funtion 00h, but does not reset the mouse
SeeAlso: AX=0000h
--------M-330022-----------------------------
INT 33 - MS MOUSE v6.0+ - SET LANGUAGE FOR MESSAGES
	AX = 0022h
	BX = language (see #1838)
Note:	only available on international versions of the driver; US versions
	  ignore this call
SeeAlso: AX=0023h

(Table 1838)
Values for mouse driver language:
 00h	English
 01h	French
 02h	Dutch
 03h	German
 04h	Swedish
 05h	Finnish
 06h	Spanish
 07h	Portugese
 08h	Italian
--------M-330023-----------------------------
INT 33 - MS MOUSE v6.0+ - GET LANGUAGE FOR MESSAGES
	AX = 0023h
Return: BX = language (see #1838)
Note:	the US version of the driver always returns zero
SeeAlso: AX=0022h
--------M-330024-----------------------------
INT 33 - MS MOUSE v6.26+ - GET SOFTWARE VERSION, MOUSE TYPE, AND IRQ NUMBER
	AX = 0024h
Return: AX = FFFFh on error
	otherwise,
	    BH = major version
	    BL = minor version
	    CH = type (1=bus, 2=serial, 3=InPort, 4=PS/2, 5=HP)
	    CL = interrupt (0=PS/2, 2=IRQ2, 3=IRQ3,...,7=IRQ7)
SeeAlso: AX=004Dh,AX=006Dh
--------M-330025-----------------------------
INT 33 - MS MOUSE v6.26+ - GET GENERAL DRIVER INFORMATION
	AX = 0025h
Return: AX = general information (see #1839)
	BX = cursor lock flag for OS/2 to prevent reentrancy problems
	CX = mouse code active flag (for OS/2)
	DX = mouse driver busy flag (for OS/2)

Bitfields for general mouse driver information:
Bit(s)	Description	(Table 1839)
 15	driver loaded as device driver rather than TSR
 14	driver is newer integrated type
 13,12	current cursor type
	00 software text cursor
	01 hardware text cursor (CRT Controller's cursor)
	1X graphics cursor
 11-8	interrupt rate (see #1837)
 7-0	count of currently-active Mouse Display Drivers (MDD), the newer
	  integrated driver type
--------M-330026-----------------------------
INT 33 - MS MOUSE v6.26+ - GET MAXIMUM VIRTUAL COORDINATES
	AX = 0026h
Return: BX = mouse-disabled flag (0000h mouse enabled, nonzero disabled)
	CX = maximum virtual X (for current video mode)
	DX = maximum virtual Y
Note:	for driver versions before 7.05, this call returns the currently-set
	  maximum coordinates; v7.05+ returns the absolute maximum coordinates
SeeAlso: AX=0031h
--------M-330026-----------------------------
INT 33 - Genius Mouse 9.06 - ???
	AX = 0026h
Return: CX = 0204h if CX was 0105h on entry, else unchanged
--------M-330027-----------------------------
INT 33 - MS MOUSE v7.01+ - GET SCREEN/CURSOR MASKS AND MICKEY COUNTS
	AX = 0027h
Return: AX = screen-mask value (or hardware cursor scan-line start for v7.02+)
	BX = cursor-mask value (or hardware cursor scan-line stop for v7.02+)
	CX = horizontal mickeys moved since last call
	DX = vertical mickeys moved since last call
SeeAlso: AX=000Bh
--------M-330028-----------------------------
INT 33 - MS MOUSE v7.0+ - SET VIDEO MODE
	AX = 0028h
	CX = new video mode (call is NOP if 0000h)
	DH = Y font size (00h = default)
	DL = X font size (00h = default)
Return: CL = status (00h = successful)
Notes:	DX is ignored unless the selected video mode supports font size control
	when CX=0000h, an internal flag that had been set by a previous call
	  is cleared; this is required before a mouse reset
SeeAlso: AX=0029h,INT 10/AH=00h
--------M-330029-----------------------------
INT 33 - MS MOUSE v7.0+ - ENUMERATE VIDEO MODES
	AX = 0029h
	CX = previous video mode
		 0000h get first supported video mode
	    other get next supported mode after mode CX
Return: CX = first/next video mode (0000h = no more video modes)
	DS:DX -> description of video mode or 0000h:0000h if none
Notes:	the enumerated video modes may be in any order and may repeat
	the description string (if available) is terminated by '$' followed by
	  a NUL byte
SeeAlso: AX=0028h
--------M-33002A-----------------------------
INT 33 - MS MOUSE v7.02+ - GET CURSOR HOT SPOT
	AX = 002Ah
Return: AX = internal counter controlling cursor visibility
	BX = cursor hot spot column
	CX = cursor hot spot row
	DX = mouse type (see #1840)
Note:	the hot spot location is relative to the upper left corner of the
	  cursor block and may range from -128 to +127 both horizontally and
	  vertically
SeeAlso: AX=0009h,AX=0012h,AX=0035h

(Table 1840)
Values for mouse type:
 00h	none
 01h	bus
 02h	serial
 03h	InPort
 04h	IBM
 05h	Hewlett-Packard
--------M-33002B-----------------------------
INT 33 - MS MOUSE v7.0+ - LOAD ACCELERATION PROFILES
	AX = 002Bh
	BX = active acceleration profile
	    0001h-0004h or FFFFh to restore default curves
	ES:SI -> buffer containing acceleration profile data (see #1841)
Return: AX = success flag
SeeAlso: AX=002Ch,AX=002Dh,AX=0033h

Format of acceleration profile data:
Offset	Size	Description	(Table 1841)
 00h	BYTE	length of acceleration profile 1
 01h	BYTE	length of acceleration profile 2
 02h	BYTE	length of acceleration profile 3
 03h	BYTE	length of acceleration profile 4
 04h 32 BYTEs	threshold speeds for acceleration profile 1
 24h 32 BYTEs	threshold speeds for acceleration profile 2
 44h 32 BYTEs	threshold speeds for acceleration profile 3
 64h 32 BYTEs	threshold speeds for acceleration profile 4
 84h 32 BYTEs	speedup factor for acceleration profile 1
		(10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
 A4h 32 BYTEs	speedup factor for acceleration profile 2
		(10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
 C4h 32 BYTEs	speedup factor for acceleration profile 3
		(10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
 E4h 32 BYTEs	speedup factor for acceleration profile 4
		(10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
104h 16 BYTEs	name of acceleration profile 1 (blank-padded)
114h 16 BYTEs	name of acceleration profile 2 (blank-padded)
124h 16 BYTEs	name of acceleration profile 3 (blank-padded)
134h 16 BYTEs	name of acceleration profile 4 (blank-padded)
Note:	unused bytes in the threshold speed fields are filled with 7Fh and
	  unused bytes in the speedup factor fields are filled with 10h
--------M-33002C-----------------------------
INT 33 - MS MOUSE v7.0+ - GET ACCELERATION PROFILES
	AX = 002Ch
Return: AX = status (0000h success)
	BX = currently-active acceleration profile
	ES:SI -> acceleration profile data (see #1841)
SeeAlso: AX=002Bh,AX=002Dh,AX=0033h
--------M-33002D-----------------------------
INT 33 - MS MOUSE v7.0+ - SELECT ACCELERATION PROFILE
	AX = 002Dh
	BX = acceleration level
	    0001h-0004h to set profile, or FFFFh to get current profile
Return: AX = status
	    0000h successful
		ES:SI -> 16-byte blank-padded name of acceleration profile
	    FFFEh invalid acceleration curve number
		ES:SI destroyed
	BX = active acceleration curve number
SeeAlso: AX=0013h,AX=002Bh,AX=002Ch,AX=002Eh
--------M-33002E-----------------------------
INT 33 - MS MOUSE v8.10+ - SET ACCELERATION PROFILE NAMES
	AX = 002Eh
	BL = flag (if nonzero, fill ES:SI buffer with default names on return)
	ES:SI -> 64-byte buffer containing profile names (16 bytes per name)
Return: AX = status (0000h success)
	    FFFEh error for ATI Mouse driver
	ES:SI buffer filled with default names if BL nonzero on entry
Notes:	not supported by Logitech driver v6.10
	supported by ATI Mouse driver v7.04
SeeAlso: AX=002Ch,AX=002Dh,AX=012Eh,AX=022Eh
--------M-33002F-----------------------------
INT 33 - MS MOUSE v7.02+ - MOUSE HARDWARE RESET
	AX = 002Fh
Return: AX = status
Note:	invoked by mouse driver v8.20 on being called with INT 2F/AX=530Bh
SeeAlso: INT 2F/AH=53h
--------M-330030-----------------------------
INT 33 - MS MOUSE v7.04+ - GET/SET BallPoint INFORMATION
	AX = 0030h
	CX = command
	    0000h get status of BallPoint device
	    other set rotation angle and masks
		BX = rotation angle (-32768 to 32767 degrees)
		CH = primary button mask
		CL = secondary button mask
Return: AX = button status (FFFFh if no BallPoint) (see #1842)
	BX = rotation angle (0-360 degrees)
	CH = primary button mask
	CL = secondary button mask
Note:	not supported by the ATI Mouse driver which calls itself v7.04

Bitfields for BallPoint mouse button status:
Bit(s)	Description	(Table 1842)
 5	button 1
 4	button 2
 3	button 3
 2	button 4
 other	zero
--------M-330031-----------------------------
INT 33 - MS MOUSE v7.05+ - GET CURRENT MINIMUM/MAXIMUM VIRTUAL COORDINATES
	AX = 0031h
Return: AX = virtual X minimum
	BX = virtual Y minimum
	CX = virtual X maximum
	DX = virtual Y maximum
Note:	the minimum and maximum values are those set by AX=0007h and AX=0008h;
	  the default is minimum = 0 and maximum = absolute maximum
	  (see AX=0026h)
SeeAlso: AX=0007h,AX=0008h,AX=0010h,AX=0026h
--------M-330032-----------------------------
INT 33 - MS MOUSE v7.05+ - GET ACTIVE ADVANCED FUNCTIONS
	AX = 0032h
Return: AX = active function flags (FFFFh for v8.10)
	    bit 15: function 0025h supported
	    bit 14: function 0026h supported
	    ...
	    bit 0:  function 0034h supported
	BX = ??? (0000h) officially unused
	CX = ??? (E000h) officially unused
	DX = ??? (0000h) officially unused
--------M-330033-----------------------------
INT 33 - MS MOUSE v7.05+ - GET SWITCH SETTINGS AND ACCELERATION PROFILE DATA
	AX = 0033h
	CX = size of buffer
	    0000h get required buffer size
		Return: AX = 0000h
			CX = required size (0154h for Logitech v6.10, 0159h
				for MS v8.10-8.20)
	    other
		ES:DX -> buffer of CX bytes for mouse settings
		Return: AX = 0000h
			CX = number of bytes returned
			ES:DX buffer filled (see #1843)
SeeAlso: AX=002Bh

Format of mouse settings data buffer:
Offset	Size	Description	(Table 1843)
 00h	BYTE	mouse type
 01h	BYTE	current language
 02h	BYTE	horizontal sensitivity (00h-64h)
 03h	BYTE	vertical sensitivity (00h-64h)
 04h	BYTE	double-speed threshold (00h-64h)
 05h	BYTE	ballistic curve (01h-04h)
 06h	BYTE	interrupt rate (01h-04h)
 07h	BYTE	cursor override mask
 08h	BYTE	laptop adjustment
 09h	BYTE	memory type (00h-02h)
 0Ah	BYTE	SuperVGA support (00h,01h)
 0Bh	BYTE	rotation angle
 0Ch	BYTE	???
 0Dh	BYTE	primary button (01h-04h)
 0Eh	BYTE	secondary button (01h-04h)
 0Fh	BYTE	click lock enabled (00h,01h)
 10h 324 BYTEs	acceleration profile data (see #1841)
154h  5 BYTEs	??? (Microsoft driver, but not Logitech)
--------M-330034-----------------------------
INT 33 - MS MOUSE v8.0+ - GET INITIALIZATION FILE
	AX = 0034h
Return: AX = status (0000h successful)
	ES:DX -> ASCIZ initialization (.INI) file name
--------M-330035-----------------------------
INT 33 - MS MOUSE v8.10+ - LCD SCREEN LARGE POINTER SUPPORT
	AX = 0035h
	BX = function
	    FFFFh get current settings
		Return: AX = 0000h
			BH = style (see #1844)
			BL = size (see below)
			CH = threshold
			CL = active flag (00h disabled, 01h enabled)
			DX = delay
	    other
		BH = pointer style (see #1844)
		BL = size (00h small "1", 01h medium "1.5", 02h large "2")
		CH = threshold (00h-64h)
		CL = active flag (00h disable size change, 01h enable)
		DX = delay (0000h-0064h)
		Return: AX = 0000h
Note:	not supported by Logitech driver v6.10
SeeAlso: AX=0012h,AX=002Ah

(Table 1844)
Values for pointer style:
 00h	normal
 01h	reverse
 02h	transparent
--------M-330042-----------------------------
INT 33 - PCMOUSE - GET MSMOUSE STORAGE REQUIREMENTS
	AX = 0042h
Return: AX = status
	    0000h MSMOUSE not installed
	    0042h functions 42h, 50h, and 52h not supported
	    FFFFh successful
		BX = buffer size in bytes for functions 50h and 52h
Note:	this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0015h,AX=0050h,AX=0052h
--------M-330043-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - CONFIGURE MOUSE???
	AX = 0043h
	CX:BX -> configuration buffer (see #1845)
	DL = ???
Return: ???
Notes:	also calls routines for INT 33/AX=0053h and INT 33/AX=004Fh
	this function is also supported by the Genius Mouse 9.06 driver

Format of Mouse Systems configuration buffer:
Offset	Size	Description	(Table 1845)
 00h	WORD	I/O port address
 02h	BYTE	???
 03h	BYTE	interrupt number
 04h	BYTE	interrupt mask for interrupt controller
 05h  5 BYTEs	???
--------M-330044CXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - TOGGLE IGNORE ACCELERATION CMDS
	AX = 0044h
	CX = CDEFh
Return: AX = new state of "Ignore Application Acceleration Commands" flag
Note:	this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0045h
--------M-330045CXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - TOGGLE RESOLUTION DOUBLING
	AX = 0045h
	CX = CDEFh
Return: AX = new state of resolution doubling flag
Note:	this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0044h
--------M-330047-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SET BUTTON ASSIGNMENTS
	AX = 0047h
	ES:BX -> button assignments (3 bytes, combinations of "L", "M", "R")
Return: ???
Note:	also supported by Genius Mouse 9.06 driver
SeeAlso: AX=0067h
--------M-330048BXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - GET ???
	AX = 0048h
	BX = CDEFh
Return: CX = ???
	BH = ???
	BL = ??? (if 50h, driver is using PS/2 pointing device BIOS interface)
Note:	also supported by Genius Mouse 9.06 driver
--------M-33004B-----------------------------
INT 33 - Z-NIX MOUSE DRIVER v7.04d - INSTALLATION CHECK
	AX = 004Bh
Return: ES:DI -> signature/description string if installed
Note:	the signature string in v7.04d is
	  "Z-NIX;BUS,AUX,Serial 3-byte and 5-byte Mouse Driver;ZMOUSE;v7.04d"
--------M-33004CBXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SET ??? FLAG
	AX = 004Ch
	BX = CDEFh
Note:	also supported by Genius Mouse 9.06
SeeAlso: AX=006Ch
--------M-33004D-----------------------------
INT 33 - MS MOUSE - RETURN POINTER TO COPYRIGHT STRING
	AX = 004Dh
Return: ES:DI -> copyright message "*** This is Copyright 1983 Microsoft"
Notes:	also supported by Logitech, Kraft, Genius Mouse, and Mouse Systems
	  mouse drivers
	in the Genius Mouse 9.06 driver, the ASCIZ signature "KYE" immediately
	  follows the above copyright message (KYE Corp. manufactures the
	  driver)
SeeAlso: AX=0024h,AX=006Dh,AX=0666h
--------M-33004F-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ENABLE MOUSE
	AX = 004Fh
Return: nothing
Note:	also supported by Genius Mouse 9.06
SeeAlso: AX=0043h,AX=0053h
--------M-330050-----------------------------
INT 33 - PCMOUSE - SAVE MSMOUSE STATE
	AX = 0050h
	BX = buffer size (ignored by some driver versions)
	ES:DX -> buffer
Return: AX = FFFFh if successful
Notes:	the buffer must be large enough to hold the entire state, or following
	  data will be overwritten by state data in versions which ignore BX;
	  use INT 33/AX=0042h to get the required size
	this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0042h,AX=0052h
--------M-330052-----------------------------
INT 33 - PCMOUSE - RESTORE MSMOUSE STATE
	AX = 0052h
	BX = buffer size (ignored by some driver versions)
	ES:DX -> buffer
Return: AX = FFFFh if successful
Note:	also supported by Genius Mouse 9.06 driver
SeeAlso: AX=0050h
--------M-330053-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - DISABLE MOUSE
	AX = 0053h
Return: nothing
Note:	also supported by Genius Mouse 9.06
SeeAlso: AX=0043h,AX=004Fh
--------M-330054CXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SELECT ULTRARES ACCELERATION LEVEL
	AX = 0054h
	CX = CDEFh
	BX = new acceleration level (0-9)
Return: ???
Note:	this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=005Ah
--------M-330055-----------------------------
INT 33 - Kraft Mouse - GET ???
	AX = 0055h
Return: CX = ???
	DX = ???
	ES = ???
--------M-330058-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ???
	AX = 0058h
Return: AX = CS of driver
	CX:BX = original INT 33 vector
	DX = ???
Note:	this function is also supported by the Genius Mouse 9.06 driver
--------M-33005A-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SET ULTRARES ACCELERATIONS
	AX = 005Ah
	CX = number of WORDs to copy (max 0014h, but not range-checked)
	DX:SI -> buffer containing thresholds??? (CX words)
	DX:BX -> buffer containing acceleration values???
		(9*14h words, only first CX of each 14h used)
	???
Return: CF clear
	???
Note:	this function is also supported by Genius Mouse 9.06
SeeAlso: AX=0054h
--------M-330061BXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ???
	AX = 0061h
	BX = CDEFh
Return: CX = ???
Note:	also supported by Genius Mouse 9.06
--------M-330067-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - GET MOUSE BUTTONS???
	AX = 0067h
Return: BL = number of buttons???
Note:	also supported by Genius Mouse 9.06
SeeAlso: AX=0047h
--------M-33006A-----------------------------
INT 33 U - ATI Mouse - INSTALLATION CHECK
	AX = 006Ah
Return: AL = AAh
	AH = ???
	BH = ???
	BL = ???
	CL = ???
	CH = ???
Program: ATI's MOUSE.COM and MOUSE.SYS are drivers for the mouse port found on
	  some of ATI's video adapters
SeeAlso: AX=006Dh
--------M-33006C-----------------------------
INT 33 U - TRUEDOX Mouse driver v4.01 - GET/SET HARDWARE PARAMETERS
	AX = 006Ch
	BX = new IRQ (0003h or 0004h), or 0000h to get current values only
	CL = new IRQmask (sent to 8259)
	DX = new base I/O port
Return: BX = current IRQ
	DX = light pen state???
Note:	this is the mouse driver for the Dell Dimension series of computers, by
	  TRUEDOX Technology Corporation
SeeAlso: AX=00A1h,AX=0666h
--------M-33006CBXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - CLEAR ??? FLAG
	AX = 006Ch
	BX = CDEFh
Note:	also supported by Genius Mouse 9.06
SeeAlso: AX=004Ch
--------M-33006D-----------------------------
INT 33 - MS MOUSE - GET VERSION STRING
	AX = 006Dh
Return: ES:DI -> Microsoft version number of resident driver (see #1846)
Notes:	also supported by Logitech, Mouse Systems, Kraft, and Genius mouse
	  drivers
	the Mouse Systems 7.01 and Genius Mouse 9.06 drivers report their
	  Microsoft version as 7.00 even though they do not support any of the
	  functions from 0025h through 002Dh supported by the MS 7.00 driver
	  (the Genius Mouse driver supports function 0026h, but it differs
	  from the Microsoft function)
	the TRUEDOX 4.01 driver reports its version as 6.26 through this call,
	  but as 6.24 through AX=0024h
SeeAlso: AX=0024h,AX=004Dh,AX=006Ah,AX=266Ch

Format of Microsoft version number:
Offset	Size	Description	(Table 1846)
 00h	BYTE	major version
 01h	BYTE	minor version (BCD)
--------M-330070BXABCD-----------------------
INT 33 - Mouse Systems MOUSE DRIVER - POPUP.COM - INSTALLATION CHECK
	AX = 0070h
	BX = ABCDh
Return: AX = ABCDh if installed
	    BX:CX -> data structure (see #1847)
Notes:	this function is also supported by the Genius Mouse 9.06 driver
	the v7.01 POPUP.COM and menu drivers also check for the signature
	  CDh ABh BAh DCh at offset -2Ch from the interrupt handler
	if POPUP is not loaded, the returned data structure contains the proper
	  signature at offset 00h, but not at offset 08h

Format of Mouse Systems POPUP.COM data structure:
Offset	Size	Description	(Table 1847)
 00h	WORD	signature ABCDh
 02h	DWORD	pointer to info structure??? (see #1848)
 06h  2 BYTEs	???
 08h	WORD	signature ABCDh

Format of Mouse Systems POPUP.COM info structure:
Offset	Size	Description	(Table 1848)
 00h	WORD	driver version
 02h  8 BYTEs	???
 0Ah	WORD	segment of ???
	???
--------M-330072BXABCD-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ???
	AX = 0072h
	BX = ABCDh
Return: ???
Note:	this function is also supported by the Genius Mouse 9.06 driver
--------M-330073BXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - GET BUTTON ASSIGNMENTS
	AX = 0073h
	BX = CDEFh
	ES:DX -> 3-byte buffer for button assignments
Return: CX = number of buttons???
	ES:DX buffer filled (default is "LMR")
Note:	also supported by Genius Mouse 9.06
SeeAlso: AX=0067h
--------M-3300A0-----------------------------
INT 33 U - TRUEDOX Mouse driver - SET HARDWARE PC MODE (3 button)
	AX = 00A0h
Return: nothing
Note:	this function is only available if the mouse mode is switchable
	  through the power pins
SeeAlso: AX=006Ch"TRUEDOX",AX=00A1h"TRUEDOX"
--------M-3300A1-----------------------------
INT 33 U - TRUEDOX Mouse driver - SET HARDWARE MS MODE (2 button)
	AX = 00A1h
Return: nothing
Notes:	this function is only available if the mouse mode is switchable
	  through the power pins
	this is the mouse driver for the Dell Dimension series of computers, by
	  TRUEDOX Technology Corporation
SeeAlso: AX=006Ch"TRUEDOX",AX=00A0h"TRUEDOX",AX=00A6h,AX=0666h
--------M-3300A6-----------------------------
INT 33 U - TRUEDOX Mouse driver - SET RESOLUTION
	AX = 00A6h
	BX = new software resolution
	    0001h 50-200 dpi
	    0002h 200-400 dpi
	    0003h 400-800 dpi
Note:	this is the mouse driver for the Dell Dimension series of computers, by
	  TRUEDOX Technology Corporation
SeeAlso: AX=00A0h,AX=00A1h,AX=0666h
--------M-330100CX4752-----------------------
INT 33 - GRTMOUSE v1.00+ - INSTALLATION CHECK
	AX = 0100h
	CX = 4752h ('GR')
	DX = 544Dh ('TM')
Return: AX = 474Dh ('GM') if installed
	    CX = version number (CH = major, CL = minor)
Program: GRTMOUSE is a graphical-cursor driver for textmode by Tommer Leyvand
SeeAlso: AX=0101h,AX=0102h,AX=0103h,AX=0104h
--------M-330101-----------------------------
INT 33 - GRTMOUSE v1.00+ - SET MOUSE CURSOR SHAPE
	AX = 0101h
	DS:SI -> 16-byte cursor pattern
Return: CF clear if successful
SeeAlso: AX=0100h,AX=0102h
--------M-330102-----------------------------
INT 33 - GRTMOUSE v1.00+ - GET MOUSE CURSOR SHAPE
	AX = 0102h
	ES:DI -> 16-byte buffer for cursor pattern
SeeAlso: AX=0100h,AX=0101h
--------M-330103-----------------------------
INT 33 - GRTMOUSE v1.00+ - SET ACTIVE CHARACTERS
	AX = 0103h
	CH,CL,DH,DL = ASCII codes to be remapped to display mouse pointer
Note:	the default active characters are D0h,D1h,D6h,D8h; the active
	 characters should be in the range C0h to DFh
SeeAlso: AX=0100h,AX=0104h
--------M-330104-----------------------------
INT 33 - GRTMOUSE v1.00+ - GET ACTIVE CHARACTERS
	AX = 0104h
Return: CH,CL,DH,DL = ASCII codes for the active characters
SeeAlso: AX=0100h,AX=0103h
--------M-33012E-----------------------------
INT 33 - MS MOUSE v8.10+ - ???
	AX = 012Eh
	BL = ???
Return: AX = 0000h (MS)
	AX = FFFFh (ATI Mouse v7.04)
Note:	not supported by Logitech driver v6.10
SeeAlso: AX=002Eh,AX=022Eh
--------M-33022E-----------------------------
INT 33 - MS MOUSE v8.10+ - ???
	AX = 022Eh
	BL = ???
Return: AX = 0000h (MS)
	AX = FFFFh (ATI Mouse v7.04)
Note:	not supported by Logitech driver v6.10
SeeAlso: AX=002Eh,AX=012Eh
--------M-330666-----------------------------
INT 33 U - TRUEDOX Mouse driver v4.01 - GET COPYRIGHT STRING
	AX = 0666h
Return: DX:AX -> ASCII "Copyright 1987-1992 TRUEDOX Technology Corporation"
Note:	this is the mouse driver for the Dell Dimension series of computers,
	  by TRUEDOX Technology Corporation
SeeAlso: AX=004Dh,AX=00A6h,AX=0666h
--------M-33136C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 136Ch
	BX = ???
Return: AX = ???
	BX = ???
--------M-33146C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET/SET ???
	AX = 146Ch
	BL = function
	    00h set ???
		BH = new value (zero/nonzero to clear/set)
	    else get ???
		Return: ???
--------M-33156C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET SIGNATURE AND VERSION STRINGS
	AX = 156Ch
Return: ES:DI -> signature "LOGITECH MOUSE DRIVER"
	ES:SI -> version string, terminated with CRLF
--------M-33166C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 166Ch
	BL = ???
		 00h ???
	    01h ???
	    other ???
		BH = new value of ???
		Return: AX = FFFFh
--------M-33176C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 176Ch
	???
Return: ???
--------M-33186C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 186Ch
	???
Return: ???
--------M-33196C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 196Ch
	???
Return: ???
--------M-331A6C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET ???
	AX = 1A6Ch
Return: AX = FFFFh
	BX = ???
	CX = ???
SeeAlso: AX=1B6Ch
--------M-331B6C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - SET ???
	AX = 1B6Ch
	BX = new value for ??? (0000h-0003h)
Return: AX = FFFFh
SeeAlso: AX=1A6Ch
--------M-331C6C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 1C6Ch
	BX = ???
	    <42h =42h="">42h ???
		ES:DI -> ???
		Return: AX = ???
--------M-331D6C-----------------------------
INT 33 - LOGITECH MOUSE - GET COMPASS PARAMETER
	AX = 1D6Ch
Return: BX = direction (0=north, 1=south, 2=east, 3=west)
SeeAlso: AX=1E6Ch
--------M-331E6C-----------------------------
INT 33 - LOGITECH MOUSE - SET COMPASS PARAMETER
	AX = 1E6Ch
	BX = direction (0=north, 1=south, 2=east, 3=west)
SeeAlso: AX=1D6Ch
--------M-331F6C-----------------------------
INT 33 - LOGITECH MOUSE - GET BALLISTICS INFORMATION
	AX = 1F6Ch
Return: BX = 0=off, 1=on
	CX = 1=low, 2=high
SeeAlso: AX=002Ch,AX=236Ch
--------M-33206C-----------------------------
INT 33 - LOGITECH MOUSE - SET LEFT OR RIGHT PARAMETER
	AX = 206Ch
	BX = parameter (00h = right, FFh = left)
SeeAlso: AX=216Ch
--------M-33216C-----------------------------
INT 33 - LOGITECH MOUSE - GET LEFT OR RIGHT PARAMETER
	AX = 216Ch
Return: BX = parameter (00h = right, FFh = left)
SeeAlso: AX=206Ch
--------M-33226C-----------------------------
INT 33 - LOGITECH MOUSE - REMOVE DRIVER FROM MEMORY
	AX = 226Ch
Note:	this only frees memory; does not restore hooked interrupts
--------M-33236C-----------------------------
INT 33 - LOGITECH MOUSE - SET BALLISTICS INFORMATION
	AX = 236Ch
	BX = 0=off, 1=on
	CX = 1=low, 2=high
SeeAlso: AX=002Ch,AX=1F6Ch
--------M-33246C-----------------------------
INT 33 - LOGITECH MOUSE - GET PARAMETERS AND RESET SERIAL MOUSE
	AX = 246Ch
	ES:DX -> parameter table buffer (see #1849)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=0000h,AX=256Ch/BX=0000h,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h

Format of Logitech Mouse parameter table:
Offset	Size	Description	(Table 1849)
 00h	WORD	baud rate divided by 100  (serial mouse only)
 02h	WORD	emulation		  (serial mouse only)
 04h	WORD	report rate		  (serial mouse only)
 06h	WORD	firmware revision	  (serial mouse only)
 08h	WORD	00h			  (serial mouse only)
 0Ah	WORD	port			  (serial mouse only)
 0Ch	WORD	physical buttons
 0Eh	WORD	logical buttons
--------M-33256CBX0000-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET BAUD RATE (SERIAL MOUSE ONLY)
	AX = 256Ch
	BX = 0000h
	CX = rate (0=1200, 1=2400, 2=4800, 3=9600)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0001h,AX=256Ch/BX=0002h,AX=276Ch
--------M-33256CBX0001-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET EMULATION (SERIAL MOUSE ONLY)
	AX = 256Ch
	BX = 0001h
	CX = emulation type (see #1850)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0000h,AX=256Ch/BX=0003h,AX=276Ch

(Table 1850)
Values for Logitech mouse emulation type:
 00h	5 byte packed binary
 01h	3 byte packed binary
 02h	hexadecimal
 03h	relative bit pad
 04h	not supported
 05h	MM Series
 06h	not supported
 07h	Microsoft
--------M-33256CBX0002-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET REPORT RATE (SERIAL MOUSE ONLY)
	AX = 256Ch
	BX = 0002h
	CX = rate (0=10, 1=20, 2=35, 3=50, 4=70, 5=100, 6=150)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h,AX=276Ch
--------M-33256CBX0003-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET MOUSE PORT (SERIAL MOUSE ONLY)
	AX = 256Ch
	BX = 0003h
	CX = port (1, 2)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0000h,AX=256Ch/BX=0004h,AX=276Ch
--------M-33256CBX0004-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET MOUSE LOGICAL BUTTONS
	AX = 256Ch
	BX = 0004h
	CX = buttons (2, 3)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=276Ch
--------M-33266C-----------------------------
INT 33 - LOGITECH MOUSE - GET VERSION???
	AX = 266Ch
Return: BX = 'SS'
	CH = '4'  major version number
	CL = '1'  minor version number
SeeAlso: AX=006Dh
--------M-33276C-----------------------------
INT 33 - LOGITECH MOUSE - ??? Tries MMSeries, Baud 2400
	AX = 276Ch
SeeAlso: AX=256Ch
--------M-333000-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - INSTALLATION CHECK
	AX = 3000h
Return: AX = FFFFh if installed
	    BX = version number (BH = major, BL = minor)
Program: SMD is a programmer's library by Andy Hakim which provides a
	  graphics-style mouse cursor in text mode.  PrecisePoint is an
	  SMD-based TSR which replaces the block mouse cursor in text
	  applications.
SeeAlso: AX=0000h,AX=3001h,AX=3003h
--------M-333001-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - ENABLE SMOOTH MOUSE
	AX = 3001h
Return: AX = status (0000h = disabled, 0001h = enabled)
Note:	SMD remains disabled if running under Desqview or in graphics mode
SeeAlso: AX=0001h,AX=0002h,AX=3002h
--------M-333002-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - DISABLE SMOOTH MOUSE
	AX = 3002h
Return: AX = status (0000h = disabled, 0001h = enabled)
SeeAlso: AX=0001h,AX=0002h,AX=3000h,AX=3001h
--------M-333003-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - GET INFORMATION
	AX = 3003h
	BL = data structure selector
	    00h Primary Bitmap (used for 25 line mode) (see #1851)
	    01h Secondary Bitmap (used for 43/50 line modes) (see #1851)
	    02h Sacrifice Character Map (see #1852)
	    03h Program Information (see #1853)
Return: ES:DX -> selected data structure
SeeAlso: AX=3000h

Format of Primary/Secondary Bitmap [SMD_BITMAP_STRUCT]:
Offset	Size	Description	(Table 1851)
 00h	BYTE	vertical size of bitmap (00h - 10h)
 01h	BYTE	horizontal size of bitmap (00h - 10h)
 02h	BYTE	vertical hotspot position (00h - 10h)
 03h	BYTE	horizontal hotspot position (00h - 10h)
 04h 16 WORDs	cursor bitmap data
 14h 16 WORDs	screen bitmap data

Format of Sacrifice Character Map [SMD_SMAP_STRUCT]:
Offset	Size	Description	(Table 1852)
 00h	BYTE	bytes are character values (00h-FFh) used in place of the
 01h	BYTE	actual character for the corresponding position on the screen
 02h	BYTE	     +--------------+	  occupied by part or all of the mouse
 03h	BYTE	     | 0h | 1h | 2h |	  cursor
 04h	BYTE	     |----+----+----|
 05h	BYTE	     | 3h | 4h | 5h |
 06h	BYTE	     |----+----+----|
 07h	BYTE	     | 6h | 7h | 8h |
 08h	BYTE	     +--------------+

Format of Program Information [SMD_INFO_STRUCT]:
Offset	Size	Description	(Table 1853)
 00h	WORD	segment of old interrupt 33h handler
 02h	WORD	offset of old interrupt 33h handler
 04h	WORD	PSP of SMD
 06h	BYTE	ENABLE/DISABLE manual setting status
 07h	BYTE	ENABLE/DISABLE internal usage status
--------M-333004-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION
	AX = 3004h
SeeAlso: AX=3000h
--------M-333005-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION
	AX = 3005h
SeeAlso: AX=3000h
--------M-334F00-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET ???
	AX = 4F00h
Return: AX = 004Fh if supported
	BX = ???
	ES:DI -> ???
SeeAlso: AX=4F01h
--------M-334F01-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
	AX = 4F01h
	ES = ???
Return: AX = 004Fh if supported
	ES:DI -> ???
SeeAlso: AX=4F00h
--------M-336F00-----------------------------
INT 33 - Hewlett Packard - HP MOUSE DRIVER INSTALLATION CHECK
	AX = 6F00h
	BX <> 4850h
Return: BX = 4850h ('HP') if mouse driver written by Hewlett Packard
SeeAlso: INT 10/AX=6F00h,INT 14/AX=6F00h,INT 16/AX=6F00h,INT 17/AX=6F00h
--------M-338800-----------------------------
INT 33 U - InfoTrack IMOUSE.COM - UNHOOK MOUSE IRQ
	AX = 8800h
	BX <> FFFFh
Note:	the code is written to expect a subfunction number in AL, but only
	  function 00h has been implemented
SeeAlso: AX=8800h/BX=FFFFh
--------M-338800BXFFFF-----------------------
INT 33 U - InfoTrack IMOUSE.COM - GET ACTIVE IRQ
	AX = 8800h
	BX = FFFFh
Return: BL = number of IRQ being used by the mouse
SeeAlso: AX=8800h
--------T-33FFE6-----------------------------
INT 33 - Switch-It v3.23 - GET ??? PROGRAM
	AX = FFE6h
	CX = length of buffer
	ES:DI -> buffer for program name
Return: ES:DI buffer filled
Program: Switch-It is a task switcher supporting up to 100 programs
	  simultaneously by Better Software Technology, Inc.
--------T-33FFE7-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFE7h
Return: AX = ???
--------T-33FFE8-----------------------------
INT 33 - Switch-It v3.23 - ???
	AX = FFE8h
	CX = length of name including terminating NUL
	DS:SI -> ASCIZ program pathname
--------T-33FFE9-----------------------------
INT 33 - Switch-It v3.23 - SET ???
	AX = FFE9h
	BX = ???
--------T-33FFEA-----------------------------
INT 33 - Switch-It v3.23 - SET ???
	AX = FFEAh
	BL = ???
--------T-33FFEB-----------------------------
INT 33 - Switch-It v3.23 - SET ??? FLAG
	AX = FFEBh
--------T-33FFEC-----------------------------
INT 33 - Switch-It v3.23 - SET ???
	AX = FFECh
	BL = ???
--------T-33FFED-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFEDh
Return: AX = ??? (0001h)
	BX = ???
Program: Switch-It is a task switcher supporting up to 100 programs
	  simultaneously by Better Software Technology, Inc.
--------T-33FFEE-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFEEh
Return: AX = ???
--------T-33FFEF-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFEFh
Return: BX:AX -> ???
--------T-33FFF0-----------------------------
INT 33 - Switch-It v3.23 - SET ???
	AX = FFF0h
	BL = ???
--------T-33FFF1-----------------------------
INT 33 - Switch-It v3.23 - GET CONFIGURATION FILE
	AX = FFF1h
Return: BX:AX -> ASCIZ pathname of configuration file
Program: Switch-It is a task switcher supporting up to 100 programs
	  simultaneously by Better Software Technology, Inc.
--------T-33FFF2-----------------------------
INT 33 - Switch-It v3.23 - SET ??? FLAG
	AX = FFF2h
Return: AL = 01h
--------T-33FFF3-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFF3h
Return: AX = ???
--------T-33FFF4-----------------------------
INT 33 - Switch-It v3.23 - SET ???
	AX = FFF4h
	BX = ???
	CX = ???
--------T-33FFF5-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFF5h
Return: AX = ???
--------T-33FFF6-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFF6h
Return: AX = ???
--------T-33FFF7-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFF7h
	BX = index of ???
Return: AX = ???
--------T-33FFF8-----------------------------
INT 33 - Switch-It v3.23 - ???
	AX = FFF8h
	BX = ???
	CX = length of program name, including terminating NUL
	DS:SI -> ASCIZ program pathname
Return: ???
Program: Switch-It is a task switcher supporting up to 100 programs
	  simultaneously by Better Software Technology, Inc.
--------T-33FFF9-----------------------------
INT 33 - Switch-It v3.23 - NOP
	AX = FFF9h
--------T-33FFFA-----------------------------
INT 33 - Switch-It v3.23 - SET ???
	AX = FFFAh
	BX = index of program
SeeAlso: AX=FFFBh,AX=FFFCh
--------T-33FFFB-----------------------------
INT 33 - Switch-It v3.23 - GET ???
	AX = FFFBh
	BX = index of program
Return: AX = ??? (0000h or 0001h)
SeeAlso: AX=FFFAh,AX=FFFCh
--------T-33FFFC-----------------------------
INT 33 - Switch-It v3.23 - CLEAR ???
	AX = FFFCh
	BX = index of program
SeeAlso: AX=FFFAh,AX=FFFCh
--------T-33FFFD-----------------------------
INT 33 - Switch-It v3.23 - GET MEMORY ADDRESSES???
	AX = FFFDh
Return: AX = first available segment???
	BX = paragraph of top of conventional memory
	DX = PSP segment of SI.EXE
--------T-33FFFE-----------------------------
INT 33 - Switch-It v3.23 - INSTALLATION CHECK
	AX = FFFEh
Return: BX = ???
	DX = 5349h ("SI")
--------T-33FFFF-----------------------------
INT 33 - Switch-It v3.23 - ???
	AX = FFFFh
	BX = ???
Program: Switch-It is a task switcher supporting up to 100 programs
	  simultaneously by Better Software Technology, Inc.
--------r-34---------------------------------
INT 34 - FLOATING POINT EMULATION - OPCODE D8h
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of D8h
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 35,INT 3E
--------r-35---------------------------------
INT 35 - FLOATING POINT EMULATION - OPCODE D9h
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of D9h
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 34,INT 36
--------r-36---------------------------------
INT 36 - FLOATING POINT EMULATION - OPCODE DAh
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of DAh
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 35,INT 37
--------r-37---------------------------------
INT 37 - FLOATING POINT EMULATION - OPCODE DBh
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of DBh
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 36,INT 38
--------r-38---------------------------------
INT 38 - FLOATING POINT EMULATION - OPCODE DCh
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of DCh
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 37,INT 39
--------O-38---------------------------------
INT 38 - PC-MOS/386 v3.0 - API
Note:	this API was been moved to INT D4h sometime between versions 3.0 and
	  5.01; v3.0 supported at least functions 02h,04h,0703h,10h,11h, and
	  12h
SeeAlso: INT D4/AH=02h,INT D4/AH=04h,INT D4/AH=07h,INT D4/AH=10h,INT D4/AH=11h
--------r-39---------------------------------
INT 39 - FLOATING POINT EMULATION - OPCODE DDh
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of DDh
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 38,INT 3A
--------r-3A---------------------------------
INT 3A - FLOATING POINT EMULATION - OPCODE DEh
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of DEh
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 39,INT 3B
--------r-3B---------------------------------
INT 3B - FLOATING POINT EMULATION - OPCODE DFh
Desc:	this interrupt is used to emulate floating-point instructions with
	  an opcode of DFh
Note:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
SeeAlso: INT 3A,INT 3C
--------r-3C---------------------------------
INT 3C - FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE
Notes:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
	the generated code is  CD 3C xy mm ....
	  where xy is a modified ESC instruction and mm is the modR/M byte.
	  The xy byte appears to be encoded as
		s s 0 1 1 x x x	  or	s s 0 0 0 x x x
	  where "ss" specifies the segment override:
		00 -> DS:
		01 -> SS:
		10 -> CS:
		11 -> ES:
SeeAlso: INT 3B,INT 3D
--------r-3D---------------------------------
INT 3D - FLOATING POINT EMULATION - STANDALONE FWAIT
Notes:	the floating-point emulators in Borland and Microsoft languages and
	  Lahey FORTRAN use this interrupt
	this vector is modified but not restored by Direct Access v4.0, and
	  may be left dangling by other programs written with the same version
	  of compiled BASIC
SeeAlso: INT 3C,INT 3E
--------r-3E---------------------------------
INT 3E - FLOATING POINT EMULATION - Borland LANGUAGES "SHORTCUT" CALL
Notes:	the two bytes following the INT 3E instruction are the subcode
	  (see #1854) and a NOP (90h), except for subcodes DCh and DEh, where
	  the second byte is a register count (01h-08h)
	this vector is modified but not restored by Direct Access v4.0, and
	  may be left dangling by other programs written with the same version
	  of compiled BASIC
SeeAlso: INT 3D

(Table 1854)
Values for Borland floating-point shortcut subcode:
Subcode		Function
 DCh	load 8086 stack with 8087 registers; overwrites the 10*N bytes at the
	  top of the stack prior to the INT 3E with the 8087 register contents
 DEh	load 8087 registers from top of 8086 stack; ST0 is furthest from top
	  of 8086 stack
 E0h	round TOS and R1 to single precision, compare, pop twice
	  returns AX=8087 status word, FLAGS=8087 condition bits
 E2h	round TOS and R1 to double precision, compare, pop twice
	  returns AX=8087 status word, FLAGS=8087 condition bits
	Note: buggy in TPas5.5, because it sets the 8087 precision control
	  field to the undocumented value 01h; this results in actually
	  rounding to single precision
 E4h	compare TOS/R1 with two POP's
	  returns FLAGS=8087 condition bits
 E6h	compare TOS/R1 with POP
	  returns FLAGS=8087 condition bits
 E8h	FTST (check TOS value)
	  returns FLAGS=8087 condition bits
 EAh	FXAM (check TOS value)
	  returns AX=8087 status word
 ECh	sine(ST0)
 EEh	cosine(ST0)
 F0h	tangent(ST0)
 F2h	arctangent(ST0)
 F4h	ST0 = ln(ST0)
 F6h	ST0 = log2(ST0)
 F8h	ST0 = log10(ST0)
 FAh	ST0 = e**ST0
 FCh	ST0 = 2**ST0
 FEh	ST0 = 10**ST0
--------r-3F---------------------------------
INT 3F - Overlay manager interrupt (Microsoft LINK.EXE, Borland TLINK VROOMM)
Notes:	INT 3F is the default, and may be overridden while linking
	this vector is modified but not restored by Direct Access v4.0, and
	  may be left dangling by other programs written with the same version
	  of compiled BASIC
SeeAlso: INT FE"OVERLAY"
--------r-3F---------------------------------
INT 3F - Microsoft Dynamic Link Library manager
SeeAlso: INT 21/AH=4Bh
--------B-40---------------------------------
INT 40 - DISKETTE - ROM BIOS DISKETTE HANDLER RELOCATED BY HARD DISK BIOS
SeeAlso: INT 13,INT 47"SuperBIOS",INT 63
--------h-40---------------------------------
INT 40 - Z100 - Master 8259 - Parity error or S100 error
SeeAlso: INT 41"Z100",INT FF"Z100"
--------O-40---------------------------------
INT 40 - Acorn BBC Master 512 - "OSFIND" - OPEN FILE
	AL = operation
	    00h close file
	    40h open file for reading
	    80h open file for writing
		 C0h open file for random access
	DS:BX -> CR-terminated filename
Return: AL = file handle (00h if file closed or could not be opened)
Note:	the Acorn BBC Master 512 is an 80186-based add-on board for the
	  6502-based Master 128 which uses the original CPU as an I/O processor
SeeAlso: INT 41"Acorn",INT 42"Acorn",INT 43"Acorn",INT 44"Acorn",INT 4C"Acorn"
--------h-40---------------------------------
INT 40 - TI Professional PC - IRQ0 
Note:	on the TI Pro, IRQ0 is connected to the same pin on the expansion bus
	  that IBM connects to IRQ2
SeeAlso: INT 0A"IRQ2",INT 41"TI Professional"
--------B-41---------------------------------
INT 41 - SYSTEM DATA - HARD DISK 0 PARAMETER TABLE
Notes:	the default parameter table array is located at F000h:E401h in 100%
	  compatible BIOSes; the pointer may be overridden by the hard disk
	  controller's BIOS to support drive formats unknown to the ROM BIOS
	not used by some PS/2 models
SeeAlso: #1855,INT 13/AH=09h,INT 1E,INT 46,INT 60"Adaptec",INT C0"AMI"

Format of fixed disk parameters:
Offset	Size	Description	(Table 1855)
 00h	WORD	number of cylinders
 02h	BYTE	number of heads
 03h	WORD	starting reduced write current cylinder (XT only, 0 for others)
 05h	WORD	starting write precompensation cylinder number
 07h	BYTE	maximum ECC burst length (XT only)
 08h	BYTE	control byte (see #1856,#1857)
 09h	BYTE	standard timeout (XT only, 0 for others)
 0Ah	BYTE	formatting timeout (XT and WD1002 only, 0 for others)
 0Bh	BYTE	timeout for checking drive (XT and WD1002 only, 0 for others)
 0Ch	WORD	cylinder number of landing zone (AT and later only)
 0Eh	BYTE	number of sectors per track (AT and later only)
 0Fh	BYTE	reserved
SeeAlso: #0179,#0181

Bitfields for XT fixed disk control byte:
Bit(s)	Description	(Table 1856)
 2-0	drive step speed
	000  3ms
	100  200ms
	101  70ms (default)
	110  3ms
	111  3ms
 5-3	unused
 6	disable ECC retries
 7	disable access retries

Bitfields for AT fixed disk control byte:
Bit(s)	Description	(Table 1857)
 0	unused
 1	reserved (0)  (disable IRQ)
 2	reserved (0)  (no reset)
 3	set if more than 8 heads
 4	always 0
 5	set if manufacturer's defect map on max cylinder+1  (AT and later only)
 6	disable ECC retries
 7	disable access retries
--------h-41---------------------------------
INT 41 - Z100 - Master 8259 - Processor Swap
SeeAlso: INT 40"Z100",INT 42"Z100"
--------h-41---------------------------------
INT 41 - TI Professional PC - IRQ1
Note:	on the TI Pro, IRQ1 is connected to the same pin on the expansion bus
	  that IBM connects to IRQ3
SeeAlso: INT 0B"IRQ3",INT 40"TI Professional",INT 42"TI Professional"
--------O-41---------------------------------
INT 41 - Acorn BBC Master 512 - "OSGBPB" - MULTI-BYTE GET/PUT
	AL = function
	    01h put bytes sequentially
		 02h put bytes, ignoring sequential pointer
	    03h get bytes sequentially
	    04h get bytes, ignoring sequential pointer
	    05h get media title and boot option
	    06h get current device and directory
	    07h get current library and device
	    08h search directory
	DS:BX -> control block (see #1858)
Return: CF clear if successful
	CF set on error
	AL = 00h if operation attempted
	AL unchanged if unsupported function
SeeAlso: INT 40"Acorn",INT 42"Acorn",INT 43"Acorn"

Format of BBC Master control block:
Offset	Size	Description	(Table 1858)
 00h	BYTE	file handle
 01h	DWORD	pointer to data in either I/O processor or Tube processor
 05h	DWORD	number of bytes to be transferred
 09h	DWORD	transfer address
--------G-410000-----------------------------
INT 41 CPU - MS Windows debugging kernel - OUTPUT CHARACTER FOR USER
	AX = 0000h
	DS:DX -> character
Note:	the kernel calls this function when it wants the user program to
	  output a character
SeeAlso: AX=0001h
--------G-410001-----------------------------
INT 41 CPU - MS Windows debugging kernel - INPUT CHARACTER
	AX = 0001h
Return: AL = character	
Note:	the kernel calls this function when it needs to input a character
SeeAlso: AX=0000h
--------G-41000D-----------------------------
INT 41 CPU - MS Windows debugging kernel - TASK GOING OUT
	AX = 000Dh
SeeAlso: AX=000Eh
--------G-41000E-----------------------------
INT 41 CPU - MS Windows debugging kernel - TASK COMING IN
	AX = 000Eh
SeeAlso: AX=000Dh
--------G-410012-----------------------------
INT 41 CPU - MS Windows debugging kernel - "OutputDebugString"
	AX = 0012h
	DS:SI -> string (Windows 3.0)
	ES:SI -> string (Windows 3.1)
Return: nothing???
Note:	this function is called by the kernel when it wants to output a
	  string through the debugger
SeeAlso: AX=0050h,INT 68/AH=47h
--------G-41004F-----------------------------
INT 41 CPU - MS Windows debugging kernel - DEBUGGER INSTALLATION CHECK
	AX = 004Fh
Return: AX = F386h if debugger is present
SeeAlso: INT 68/AX=4400h
--------G-410050-----------------------------
INT 41 P - MS Windows debugging kernel - "DefineDebugSegment"
	AX = 0050h
	BX = segment number in executable (0-based)
	CX = selector
	DX = instance handle
	SI = segment flags (0=code, 1=data)
	ES:DI -> module name of owner
Return: ???
SeeAlso: AX=0012h,AX=004Fh
--------G-410051-----------------------------
INT 41 CPU - MS Windows debugging kernel - MOVE SEGMENT
	AX = 0051h
	???
Return: ???
SeeAlso: AX=0050h,AX=0052h
--------G-410052-----------------------------
INT 41 CPU - MS Windows debugging kernel - FREE SEGMENT
	AX = 0052h
	BX = freed selector
SeeAlso: AX=0050h,AX=0051h,AX=005Ch
--------G-410059-----------------------------
INT 41 CPU - MS Windows debugging kernel - LOAD TASK
	AX = 0059h
	???:BX = CS:IP of new task's starting point
--------G-41005C-----------------------------
INT 41 CPU - MS Windows debugging kernel - FREE INITIAL SEGMENT
	AX = 005Ch
	BX = freed selector
Note:	called only when KERNEL starts, once for CS and once for the DS alias
	  to CS
SeeAlso: AX=0052h
--------G-410060-----------------------------
INT 41 CPU - MS Windows debugging kernel -  END OF SEGMENT LOAD
	AX = 0060h
	???
Return: ???
SeeAlso: AX=0061h
--------G-410061-----------------------------
INT 41 CPU - MS Windows debugging kernel - END OF SEGMENT DISCARD
	AX = 0061h
	???
Return: ???
SeeAlso: AX=0060h
--------G-410062-----------------------------
INT 41 CPU - MS Windows debugging kernel - APPLICATION TERMINATING
	AX = 0062h
STACK:	BYTE	exit code
Return: ???
	STACK unchanged???
SeeAlso: AX=0064h
--------G-410063-----------------------------
INT 41 CPU - MS Windows debugging kernel - ASYNCHRONOUS STOP (Ctrl-Alt-SysReq)
	AX = 0063h
--------G-410064-----------------------------
INT 41 CPU - MS Windows debugging kernel - DLL LOADED
	AX = 0064h
	CX:BX = DLL entry point CS:IP
	SI = module handle
SeeAlso: AX=0062h,AX=0065h
--------G-410065-----------------------------
INT 41 CPU - MS Windows debugging kernel - MODULE REMOVED
	AX = 0065h
	ES = module handle
SeeAlso: AX=0064h
--------V-42---------------------------------
INT 42 - VIDEO - RELOCATED DEFAULT INT 10 VIDEO SERVICES (EGA,VGA)
Desc:	contains the address of the original INT 10 handler which an EGA+
	  video adapter replaces with its own on-board BIOS code
SeeAlso: INT 10
Note:	not used by PS/2 built-in VGA or XGA
--------h-42---------------------------------
INT 42 - Z100 - Master 8259 - Timer
SeeAlso: INT 41"Z100",INT 43"Z100"
--------h-42---------------------------------
INT 42 - TI Professional PC - IRQ2
Note:	on the TI Pro, IRQ0 is connected to the same pin on the expansion bus
	  that IBM connects to IRQ4
SeeAlso: INT 0C"IRQ4",INT 41"TI Professional",INT 43"TI Professional"
--------b-42---------------------------------
INT 42 - Western Digital WD1002 SuperBIOS - INT 40 CASCADE
Note:	if the second WD1002 controller in the system finds INT 40 already in
	  use, it uses this vector to cascade to the first controller's BIOS
SeeAlso: INT 40"DISKETTE",INT 47"SuperBIOS"
--------O-42---------------------------------
INT 42 - Acorn BBS Master 512 - "OSBPUT" - WRITE SINGLE BYTE TO FILE
	AL = byte to be written
	BH = file handle
Return: flags destroyed
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 43"Acorn",INT 47"Acorn",INT 49"Acorn"
--------V-427500-----------------------------
INT 42 U - Toshiba laptops - ???
	AX = 7500h
	BL = ??? (00h or 01h)
Return: ???
Note:	used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7501h,AX=7503h
--------V-427501-----------------------------
INT 42 U - Toshiba laptop - GET ??? DATA
	AX = 7501h
	DS:DI -> data area to be filled ???
Return: area filled with data ???
Note:	used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7500h,AX=7502h,AX=7503h
--------V-427502-----------------------------
INT 42 U - Toshiba laptops - SET ??? DATA
	AX = 7502h
	DS:DI -> data area ???
Return: ???
Note:	used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7501h,AX=7503h
--------V-427503-----------------------------
INT 42 - Toshiba laptops - GET DISPLAY STATUS
	AX = 7503h
Return: AX = 7575h if supported
	CX = 0001h if supported
	BH = display type (00h color, 03h monochrome)
	BL = display state
	    01h internal LCD display is active
	    02h external VGA display is active
	    03h both displays active / DeskStation display mode enabled
		(not possible on all machines)
Note:	used by VCHAD.EXE and supported by all Toshiba VGA laptops
	  (string "TOSHIBA " at F000:E010h should be checked before call)
	INT 42 normally points to F000:F065h but may be redirected by QEMM386
SeeAlso: AX=7500h,AX=7504h,INT 15/AH=C0h
--------V-427504-----------------------------
INT 42 U - Toshiba laptops - ???
	AX = 7504h
	BL = ???
Return: BH = ???
Note:	used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7500h,AX=7503h
--------V-43---------------------------------
INT 43 - VIDEO DATA - CHARACTER TABLE (EGA,MCGA,VGA)
Desc:	points at graphics data for characters 00h-7Fh of the current font
	  in 8x8 dot modes, graphics data for all characters in 8x14 and 8x16
	  modes
Note:	this is not a callable vector!
SeeAlso: INT 06"no-name",INT 1F,INT 44"VIDEO"
--------h-43---------------------------------
INT 43 - Z100 - Master 8259 - Slave 8259 input
Note:	slave runs in special fully nested mode
SeeAlso: INT 42"Z100",INT 44"Z100"
--------h-43---------------------------------
INT 43 - TI Professional PC - IRQ3 - TIMER1 25ms INTERVAL INTERRUPT
SeeAlso: INT 0B"IRQ3",INT 42"TI Professional",INT 44"TI Professional"
SeeAlso: INT 58"TI Professional"
--------O-43---------------------------------
INT 43 - Acorn BBC Master 512 - "OSBGET" - READ SINGLE BYTE FROM FILE
	BH = file handle
Return: CF clear if successful
		 AL = byte read from file
	CF set on error
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 42"Acorn",INT 46"Acorn"
--------V-44---------------------------------
INT 44 - VIDEO DATA - ROM BIOS CHARACTER FONT, CHARACTERS 00h-7Fh (PCjr)
Desc:	this vector points at graphics data for current character font
SeeAlso: INT 1F,INT 43"VIDEO"
--------N-44---------------------------------
INT 44 - Novell NetWare - HIGH-LEVEL LANGUAGE API
--------I-44---------------------------------
INT 44 - IBM 3270-PC High Level Language API
	DS:SI -> parameter control block
--------h-44---------------------------------
INT 44 - Z100 - Master 8259 - Serial A
SeeAlso: INT 43"Z100",INT 45"Z100"
--------h-44---------------------------------
INT 44 - TI Professional PC - IRQ4
Note:	on the TI Pro, IRQ4 is connected to the same pin on the expansion bus
	  that IBM connects to IRQ5
SeeAlso: INT 0D"IRQ5",INT 43"TI Professional",INT 45"TI Professional"
--------v-44---------------------------------
INT 44 - VIRUS - "Lehigh" - ORIGINAL INT 21h VECTOR
SeeAlso: INT 32"VIRUS",INT 60"VIRUS",INT 70"VIRUS",INT 9E"VIRUS"
--------O-4400-------------------------------
INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE
	AH = 00h
	AL = function
	    00h get current filing system
		Return: AL = filing system (see #1859)
	    01h get address of commandline tail
		Return: BX buffer filled with address of command tail in I/O
			      processor address space (use INT 4A/AL=05h to
			      retrieve)
	    FFh flush all files onto secondary storage
	BX -> 4-byte data buffer
Note:	the commandline tail is terminated with a carriage return (0Dh)
SeeAlso: INT 40"Acorn",INT 45"Acorn"

(Table 1859)
Values for BBC Master filing system:
 00h	none
 01h	1200 bps cassette
 02h	300 bps cassette
 03h	ROM FS
 04h	DFS
 05h	ANFS/NFS
 06h	TFS
 08h	ADFS
--------O-44---------------------------------
INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE
	AH = nonzero file handle
	AL = function
	    00h get sequential pointer for file
	    01h set sequential pointer for file
	    02h get length of file
	BX -> 4-byte data buffer
Return: BX buffer updated if appropriate
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 44/AH=00h,INT 45"Acorn",INT 4A"Acorn"
--------h-45---------------------------------
INT 45 - Z100 - Master 8259 - Serial B
SeeAlso: INT 44"Z100",INT 46"Z100"
--------h-45---------------------------------
INT 45 - TI Professional PC - IRQ5
Note:	on the TI Pro, IRQ5 is connected to the same pin on the expansion bus
	  that IBM connects to IRQ6
SeeAlso: INT 0E"IRQ6",INT 44"TI Professional",INT 46"TI Professional"
--------O-45---------------------------------
INT 45 - Acorn BBC Master 512 - "OSFILE" - READ/WRITE FILE OR DIRECTORY INFO
	AL = function
		 00h save block of memory as file
	    01h update directory entry for existing file
	    02h set load address for existing file
	    03h set execution address for existing file
	    04h set attributes for existing file
	    05h read directory
	    06h delete file
	    FFh load file
	DS:BX -> control block (see #1860)
Return: FLAGS destroyed
	AL = file type
	    00h not found
	    01h file found
	    02h directory found
	    FFh protected file
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 44"Acorn",INT 46"Acorn"

Format of BBC Master control block:
Offset	Size	Description	(Table 1860)
 00h	WORD	address of CR-terminated filename
 02h	DWORD	load address of file
 06h	DWORD	execution address of file
 0Ah	DWORD	start address of data to save
 0Eh	DWORD	end address of data to save, or file attributes
		file attributes in low byte (see #1861)
		other three bytes are filing-system specific file attributes

Bitfields for BBC Master file attributes:
Bit(s)	Description	(Table 1861)
 0	no owner read access
 1	no owner write access
 2	not executable by owner
 3	not deletable by owner
 4	no public read access
 5	no public write access
 6	not executable with public access
 7	not deletable with public access
--------B-46---------------------------------
INT 46 - SYSTEM DATA - HARD DISK 1 DRIVE PARAMETER TABLE
Note:	not used by some PS/2 models
SeeAlso: INT 13/AH=09h,INT 41,INT 60"Adaptec",INT C0"AMI"
--------h-46---------------------------------
INT 46 - Z100 - Master 8259 - Keyboard, Retrace, and Light Pen
SeeAlso: INT 45"Z100",INT 47"Z100"
--------h-46---------------------------------
INT 46 - TI Professional PC - IRQ6
Note:	on the TI Pro, IRQ6 is connected to the same pin on the expansion bus
	  that IBM connects to IRQ7
SeeAlso: INT 0F"IRQ7",INT 45"TI Professional",INT 47"TI Professional"
--------O-46---------------------------------
INT 46 - Acorn BBC Master 512 - "OSRDCH" - GET CHARACTER FROM CUR INPUT STREAM
Return: CF clear if successful
	    AL = character read
	CF set on error
	    AL = error code
SeeAlso: INT 40"Acorn",INT 43"Acorn",INT 47"Acorn",INT 49"Acorn"
--------h-47---------------------------------
INT 47 - Z100 - Master 8259 - Printer
SeeAlso: INT 46"Z100",INT 48"Z100"
--------h-47---------------------------------
INT 47 - TI Professional PC - IRQ7 - KEYBOARD USART
SeeAlso: INT 09"IRQ1",INT 46"TI Professional"
--------O-47---------------------------------
INT 47 - Acorn BBC Master 512 - "OSWRCH" - WRITE CHARACTER TO CUR OUTPUT STREAM
	AL = character to be written
Return: FLAGS destroyed
SeeAlso: INT 40"Acorn",INT 46"Acorn",INT 49"Acorn"
--------b-47---------------------------------
INT 47 - Western Digital WD1002-27X SuperBIOS - INT 40 CASCADE
Desc:	used by the second WD1002-27X controller to cascade to the first
	  controller's INT 40
SeeAlso: INT 40"DISKETTE",INT 42"SuperBIOS",INT 48"SuperBIOS"
----------478000-----------------------------
INT 47 - SQL Base - DATABASE ENGINE API
	AX = 8000h
	DS:BX -> parameter block, first word is function number (see #1862)
Program: SQL Base is a network-oriented database engine by Gupta Technologies
SeeAlso: AX=8001h

(Table 1862)
Values for SQL Base function number:
 01h	"SQLFINI" initalialize application's use of the database
 02h	"SQLFDON" application is done using the database
 03h	"SQLFCON" connect to a cursor/database
 04h	"SQLFDIS" disconnect from a cursor/database
 05h	"SQLFCOM" compile a SQL command
 06h	"SQLFEXE" execute a SQL command
 07h	"SQLFCEX" compile and execute a SQL command
 08h	"SQLFCMT" commit a transaction to the database
 09h	"SQLFDES" describe the items of a SELECT statement
 0Ah	"SQLFGFI" get fetch information
 0Bh	"SQLFFBK" fetch previous result row from SELECT statement
 0Ch	"SQLFFET" fetch next result row from SELECT statement
 0Dh	"SQLFEFB" enable fetch backwards
 0Eh	"SQLFPRS" position in result set
 0Fh	"SQLFURS" undo result set
 10h	"SQLFNBV" get number of bind variables
 11h	"SQLFBND" bind data variables
 12h	"SQLFBNN" bind numerics
 13h	"SQLFBLN" bind long number
 14h	"SQLFBLD" bind long data variables
 15h	"SQLFSRS" start restriction set processing
 16h	"SQLFRRS" restart restriction set processing
 17h	"SQLFCRS" close restriction set
 18h	"SQLFDRS" drop restriction set
 19h	"SQLFARF" apply Roll Forward journal
 1Ah	"SQLFERF" end Roll Forward journal
 1Bh	"SQLFSRF" start Roll Forward journal
 1Ch	"SQLFSTO" store a compiled SQL command
 1Dh	"SQLFRET" retrieve a compiled SQL command
 1Eh	"SQLFDST" drop a stored command
 1Fh	"SQLFCTY" get command type
 20h	"SQLFEPO" get error position
 21h	"SQLFGNR" get number of rows
 22h	"SQLFNSI" get number of select items
 23h	"SQLFRBF" get Roll Back flag
 24h	"SQLFRCD" get return code
 25h	"SQLFROW" get number of ROWs
 26h	"SQLFSCN" set cursor name
 27h	"SQLFSIL" set isolation level
 28h	"SQLFSLP" set log parameters
 29h	"SQLFSSB" set select buffer
 2Ah	"SQLFSSS" set sort space
 2Bh	"SQLFRLO" read long
 2Ch	"SQLFWLO" write long
 2Dh	"SQLFLSK" long seek
 2Eh	"SQLFGLS" get long size
 2Fh	"SQLFELO" end long operation
 30h	"SQLFRBK" roll back a transaction from the database
 31h	"SQLFERR" error message
 32h	"SQLFCPY" copy
 33h	"SQLFR01" reserved
 34h	"SQLFSYS" system
 35h	"SQLFSTA" statistics
 36h	"SQLFR02" reserved
 37h	"SQLFXAD" extra add
 38h	"SQLFXCN" extra character to number
 39h	"SQLFXDA" extra date add
 3Ah	"SQLFXDP" extra date picture
 3Bh	"SQLFXDV" extra divide
 3Ch	"SQLFXML" extra multiply
 3Dh	"SQLFXNP" extra number picture
 3Eh	"SQLFXPD" extra picture date
 3Fh	"SQLFXSB" extra subtract
 40h	"SQLFINS" install database
 41h	"SQLFDIN" deinstall database
 42h	"SQLFDIR" directory of databases
 43h	"SQLFTIO" timeout
 44h	"SQLFFQN" get fully qualified column name
 45h	"SQLFEXP" explain execution plan
 46h	"SQLFFER" get full error
 47h	"SQLFBKP" begin online backup
 48h	"SQLFRDC" read backup data chunk
 49h	"SQLFEBK" end backup
 4Ah	"SQLFRES" begin restore from backup
 4Bh	"SQLFWDC" write backup data chunk for restore
 4Ch	"SQLFRRD" recover restored database to consistent state
 4Dh	"SQLFERS" end restore
 4Eh	"SQLFNRR" return number of result set rows
 4Fh	"SQLFSTR" start restriction mode
 50h	"SQLFSPR" stop restriction mode
 51h	"SQLFCNC" connect 2
 52h	"SQLFCNR" connect with no recovery
 53h	"SQLFOMS" set output message size
 54h	"SQLFIMS" set input message size
 55h	"SQLFSCP" set cache pages
 56h	"SQLFDSC" describe items of a SELECT statement (external)
 57h	"SQLFLAB" get label info for items in SELECT statement
 58h	"SQLFCBV" clear bind variables
 59h	"SQLFGET" get database information
 5Ah	"SQLFSET" set database information
 5Bh	"SQLFTEC" translate error code
----------478001-----------------------------
INT 47 - SQL Base - GET VERSION NUMBER
	AX = 8001h
Return: ???
Program: SQL Base is a network-oriented database engine by Gupta Technologies
SeeAlso: AX=8000h
--------B-48---------------------------------
INT 48 - KEYBOARD - CORDLESS KEYBOARD TRANSLATION (PCjr)
SeeAlso: INT 49"PCjr"
--------h-48---------------------------------
INT 48 - Z100 - Slave 8259 - S100 vectored line 0
SeeAlso: INT 47"Z100",INT 49"Z100"
--------N-48---------------------------------
INT 48 - Watstar PC Network data pointer 1
SeeAlso: INT 49"Watstar"
--------b-48---------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE SERVICE ROUTINE
	no details available
SeeAlso: INT 40"TI Professional",INT 49"TI Professional"
SeeAlso: INT 4A"TI Professional",INT 4C"TI Professional",INT 4D/AH=00h
--------O-48---------------------------------
INT 48 - Acorn BBC Master 512 - "OSNEWL" - SEND NEWLINE TO OUTPUT STREAM
Return: FLAGS destroyed
Note:	writes a carriage return (0Dh) followed by a linefeed (0Ah)
SeeAlso: INT 40"Acorn",INT 47"Acorn",INT 49"Acorn"
--------b-48---------------------------------
INT 48 - Western Digital WD1002-27X SuperBIOS - DRIVE DATA (NOT A VECTOR!)
Note:	the second WD1002-27X controller in a system uses the low byte to
	  store the number of drives controlled by the second controller,
	  and the high word for temporary storage during track recalculation;
	  the first controller uses offsets 74h-77h in the BIOS data area
	  (see MEMORY.LST) to store data
SeeAlso: INT 47"SuperBIOS"
--------V-48---------------------------------
INT 48 U - Compaq UILIB.EXE - API
	AX = function (see #1863)
	BX = call type (0002h) (see #1864)
	???
Return: ???
Note:	returns AX=FFFFh if 1000h<><=2000h and="" ax="" is="" not="" one="" of="" the="" functions="" listed="" below="" seealso:="" ax="1A70h" (table="" 1863)="" values="" for="" valid="" uilib="" function="" number:="" 1000h="" 1160h="" 12d0h="" 1430h="" 1570h="" 1680h="" 17f0h="" 1920h="" 1a90h="" 1010h="" 1170h="" 12e0h="" 1440h="" 1578h="" 1690h="" 1800h="" 1930h="" 1aa0h="" 1020h="" 1180h="" 12f0h="" 1450h="" 1580h="" 16a0h="" 1810h="" 1940h="" 1030h="" 1190h="" 1300h="" 1460h="" 1590h="" 16b0h="" 1820h="" 1950h="" 1040h="" 11a0h="" 1310h="" 1470h="" 1594h="" 16c0h="" 1830h="" 1960h="" 1050h="" 11b0h="" 1320h="" 1480h="" 1598h="" 16d0h="" 1840h="" 1970h="" 1060h="" 11c0h="" 1330h="" 1490h="" 15a0h="" 16e0h="" 1848h="" 1980h="" 1070h="" 11d0h="" 1340h="" 14a0h="" 15b0h="" 16f0h="" 1850h="" 1990h="" 1080h="" 11e0h="" 1350h="" 14b0h="" 15c0h="" 1700h="" 1860h="" 19a0h="" 1090h="" 11f0h="" 1360h="" 14b8h="" 15d0h="" 1710h="" 1870h="" 19b0h="" 1095h="" 1200h="" 1370h="" 14bbh="" 15d4h="" 1720h="" 1878h="" 19c0h="" 1098h="" 1210h="" 1380h="" 14c0h="" 15d8h="" 1730h="" 1880h="" 19d0h="" 10a0h="" 1220h="" 1390h="" 14d0h="" 15e0h="" 1735h="" 1890h="" 19e0h="" 10c0h="" 1230h="" 13a0h="" 14e0h="" 15f0h="" 1740h="" 1898h="" 19f0h="" 10d0h="" 1240h="" 13b0h="" 14f0h="" 1600h="" 1750h="" 18a0h="" 1a00h="" 10e0h="" 1250h="" 13b8h="" 1500h="" 1610h="" 1770h="" 18b0h="" 1a10h="" 10f0h="" 1260h="" 13c0h="" 1508h="" 1620h="" 1780h="" 18c0h="" 1a20h="" 1100h="" 1270h="" 13d0h="" 1510h="" 1630h="" 1790h="" 18d0h="" 1a30h="" 1110h="" 1280h="" 13e0h="" 1520h="" 1640h="" 17a0h="" 18e0h="" 1a40h="" 1120h="" 1290h="" 13f0h="" 1530h="" 1650h="" 17b0h="" 18f0h="" 1a50h="" 1130h="" 12a0h="" 1400h="" 1540h="" 1660h="" 17c0h="" 1900h="" 1a60h="" 1140h="" 12b0h="" 1410h="" 1550h="" 1664h="" 17d0h="" 1909h="" 1a70h="" 1150h="" 12c0h="" 1420h="" 1560h="" 1670h="" 17e0h="" 1910h="" 1a80h="" --------v-481a70-----------------------------="" int="" 48="" u="" -="" compaq="" uilib.exe="" -="" installation="" check="" ax="1A70h" bx="call" type="" (see="" #1864)="" return:="" cx="5649h" ('vi')="" if="" installed="" dx="4557h" ('ew')="" if="" installed="" ax="version???" (0106h)="" (table="" 1864)="" values="" for="" uilib="" call="" type:="" 0000h="" near="" 0001h="" far="" 0002h="" int="" (only="" valid="" call="" type="" when="" using="" int="" 48)="" 0003h="" near="" --------b-49---------------------------------="" int="" 49="" -="" system="" data="" -="" non-keyboard="" scan-code="" translation="" table="" (pcjr)="" seealso:="" #1865,int="" 48"pcjr"="" format="" of="" pcjr="" scan-code="" translation="" table:="" offset="" size="" description="" (table="" 1865)="" 00h="" byte="" number="" of="" non-keyboard="" scancodes="" in="" the="" table="" 01h="" n="" words="" high="" byte="" 00h="" (nul)="" byte="" scancode="" with="" low="" order="" byte="" representing="" the="" scancode="" mapped="" values="" relative="" to="" their="" input="" values="" within="" the="" range="" of="" 56h="" through="" 7eh="" --------h-49---------------------------------="" int="" 49="" -="" z100="" -="" slave="" 8259="" -="" s100="" vectored="" line="" 1="" seealso:="" int="" 48"z100",int="" 4a"z100"="" --------v-49---------------------------------="" int="" 49="" -="" ti="" professional="" pc="" -="" crt="" device="" service="" routine="" apparently="" provides="" direct="" video="" display="" on="" the="" ti="" professional="" pc="" seealso:="" int="" 40"ti="" professional",int="" 48"ti="" professional"="" seealso:="" int="" 4a"ti="" professional",int="" 4b"ti="" professional",int="" 4d/ah="00h" seealso:="" int="" 57"ti="" professional"="" --------n-49---------------------------------="" int="" 49="" -="" watstar="" pc="" network="" data="" pointer="" 2="" seealso:="" int="" 48"watstar"="" --------o-49---------------------------------="" int="" 49="" -="" acorn="" bbc="" master="" 512="" -="" "osasci"="" -="" write="" character="" to="" cur="" output="" stream="" al="character" to="" be="" written="" return:="" flags="" destroyed="" note:="" converts="" carriage="" return="" (0dh)="" into="" crlf="" sequence="" (0dh="" 0ah)="" seealso:="" int="" 40"acorn",int="" 46"acorn",int="" 47"acorn",int="" 48"acorn"="" --------a-490001-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" turn="" on="" magnification="" ax="0001h" return:="" ax="status" (see="" #1866)="" bx,cx,dx="" destroyed="" program:="" magic="" (magnification="" in="" color)="" is="" a="" tsr="" by="" microsystems="" software,="" inc.="" providing="" 2x2="" text="" and="" graphics="" magnification="" on="" vga,="" xga,="" and="" svga="" note:="" int="" 49="" is="" the="" default,="" but="" may="" be="" overridden="" on="" the="" commandline.="" the="" actual="" interrupt="" in="" use="" may="" be="" found="" by="" searching="" for="" the="" signature="" "magic"="" or="" "xmagic"="" (for="" the="" deluxe="" version)="" immediately="" preceding="" the="" interrupt="" handler="" (this="" is="" also="" the="" installation="" check).="" magic="" uses="" coderunner,="" which="" places="" the="" signature="" "rt"="" at="" offset="" 0000h="" in="" the="" interrupt="" handler's="" segment,="" followed="" by="" magic's="" tsr="" id="" of="" "vmag".="" seealso:="" ax="0002h,AX=0003h,AX=0004h,AX=0008h" index:="" installation="" check;magic="" (table="" 1866)="" values="" for="" magic="" status:="" 0000h="" cannot="" magnify="" current="" video="" mode="" 0002h="" magnified="" (text="" mode)="" 0003h="" magnified="" (graphics="" mode)="" fffdh="" function="" works="" only="" in="" magnified="" mode="" ffffh="" magic="" busy,="" retry="" later="" --------a-490002-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" turn="" off="" magnification="" ax="0002h" return:="" ax="status" (see="" #1866)="" bx,cx,dx="" destroyed="" seealso:="" ax="0001h" --------a-490003-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" shift="" magnified="" window="" to="" include="" specified="" location="" ax="0003h" bx="vertical" position="" (character="" row="" [text]="" or="" pixel="" row="" [graphics])="" dx="horizontal" position="" (char="" column="" [text]="" or="" 8-pixel="" units="" [gr])="" return:="" ax="status" 0000h="" successful="" ffffh="" magic="" busy,="" retry="" later="" bx,cx,dx="" destroyed="" note:="" window="" is="" not="" moved="" if="" the="" position="" is="" inside="" the="" current="" window="" seealso:="" ax="0001h,AX=0004h,AX=0005h" --------a-490004-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" reposition="" magnified="" window="" ax="0004h" bx="vertical" position="" of="" upper="" left="" corner="" dx="horizontal" position="" return:="" ax="status" (see="" ax="0003h)" bx,cx,dx="" destroyed="" seealso:="" ax="0001h,AX=0003h,AX=0005h" --------a-490005-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" get="" position="" of="" magnified="" window="" ax="0005h" return:="" ax="status" 0000h="" successful="" bx="vertical" position="" (char="" row="" or="" pixel="" row)="" dx="horizontal" position="" (char="" column="" or="" 8-pixel="" units)="" ffffh="" magic="" busy,="" retry="" later="" bx,dx="" destroyed="" cx="" destroyed="" seealso:="" ax="0001h,AX=0003h,AX=0004h,AX=0006h,AX=0007h" --------a-490006-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" get="" size="" of="" full="" screen="" ax="0006h" return:="" ax="status" 0000h="" successful="" bx="vertical" size="" (char="" rows="" or="" pixel="" rows)="" dx="horizontal" size="" (char="" cols="" or="" 8-pixel="" units)="" ffffh="" magic="" busy,="" retry="" later="" bx,dx="" destroyed="" cx="" destroyed="" seealso:="" ax="0001h,AX=0005h,AX=0007h" --------a-490007-----------------------------="" int="" 49="" -="" magic="" v1.16+="" -="" get="" size="" of="" magnification="" window="" ax="0007h" return:="" ax="status" 0000h="" successful="" bx="vertical" size="" (char="" rows="" or="" pixel="" rows)="" dx="horizontal" size="" (char="" cols="" or="" 8-pixel="" units)="" fffeh="" invalid="" function="" ffffh="" magic="" busy,="" retry="" later="" bx,dx="" destroyed="" cx="" destroyed="" bug:="" in="" v1.16="" and="" v1.17,="" this="" function="" is="" not="" recognized="" as="" valid,="" but="" ax="0000h" is="" accepted="" and="" will="" branch="" into="" hyperspace="" seealso:="" ax="0001h,AX=0006h" --------a-490008-----------------------------="" int="" 49="" -="" magic="" v1.23+="" -="" set="" text="" mode="" magnification="" size="" ax="0008h" bx="scaling" factor="" (01h="1.4" times,="" 02h,="" 04h,="" 06h,="" 08h,="" 09h="12" times)="" return:="" ax="status" 0000h="" successful="" fffbh="" scaling="" factor="" only="" available="" in="" magic="" deluxe="" fffch="" already="" in="" magnified="" state,="" can't="" set="" size="" notes:="" this="" call="" specifies="" the="" amount="" a="" subsequent="" call="" to="" ax="0001h" should="" magnify="" the="" display="" scaling="" factors="" greater="" than="" 2="" are="" only="" available="" in="" magic="" deluxe="" seealso:="" ax="0001h" --------b-4a---------------------------------="" int="" 4a="" c="" -="" system="" -="" user="" alarm="" handler="" desc:="" this="" interrupt="" is="" invoked="" by="" the="" bios="" when="" a="" real-time="" clock="" alarm="" occurs;="" an="" application="" may="" use="" it="" to="" perform="" an="" action="" at="" a="" predetermined="" time.="" note:="" this="" interrupt="" is="" called="" from="" within="" a="" hardware="" interrupt="" handler,="" so="" all="" usual="" precautions="" against="" reentering="" dos="" must="" be="" taken="" seealso:="" int="" 1a/ah="06h" --------h-4a---------------------------------="" int="" 4a="" -="" z100="" -="" slave="" 8259="" -="" s100="" vectored="" line="" 2="" seealso:="" int="" 49"z100",int="" 4b"z100"="" --------b-4a---------------------------------="" int="" 4a="" -="" ti="" professional="" pc="" -="" keyboard="" device="" service="" routine="" no="" details="" available="" seealso:="" int="" 47"ti="" professional",int="" 48"ti="" professional"="" seealso:="" int="" 49"ti="" professional",int="" 4c"ti="" professional",int="" 4d/ah="00h" seealso:="" int="" 5b"ti="" professional"="" --------o-4a---------------------------------="" int="" 4a="" -="" acorn="" bbc="" master="" 512="" -="" "osword"="" -="" misc="" functions="" using="" control="" block="" al="function" code="" fah="" transfer="" data="" between="" 80186="" and="" 65c12="" i/o="" processor="" ds:bx="" -=""> control block (see #1867)
Return: FLAGS destroyed
	control block updated
Note:	there are more functions than are listed here, but details are not
	  available
SeeAlso: INT 40"Acorn",INT 4B"Acorn",INT 4C"Acorn"

Format of BBC Master control block for function FAh:
Offset	Size	Description	(Table 1867)
 00h	BYTE	number of parameters sent to I/O processor (0Dh,0Eh)
 01h	BYTE	number of parameters read from I/O processor (01h)
 02h	DWORD	I/O processor address
 06h	DWORD	80186 segment:offset address
 0Ah	WORD	number of bytes to transfer
 0Ch	BYTE	operation type
		00h write to 65C12 at 24 us/byte
		01h read from 65C12 at 24 us/byte
		02h write to 65C12 at 26 us/word
		03h read from 65C12 at 26 us/word
		04h write to 65C12 at 10 us/byte using 256-byte blocks
		05h read from 65C12 at 10 us/byte using 256-byte blocks
 0Dh	BYTE	65C12 memory access control (only used if offset 00h = 0Eh)
		(see #1868)

Bitfields for 65C12 memory access control:
Bit(s)	Description	(Table 1868)
 7	unused
 6	always use main screen memory if I/O addr 3000h-7FFFh (overrides bit 5)
 5	use shadow screen memory if screen address specified
 4	use current ROM rather than ROM selected by bits 3-0 (only if I/O
	  address between 8000h and BFFFh)
 3-0	paged ROM number
--------h-4B---------------------------------
INT 4B - Z100 - Slave 8259 - S100 vectored line 3
SeeAlso: INT 4A"Z100",INT 4C"Z100"
--------b-4B---------------------------------
INT 4B - TI Professional PC - PARALLEL PORT DEVICE SERVICE ROUTINE
	no details available
SeeAlso: INT 40"TI Professional",INT 48"TI Professional"
SeeAlso: INT 49"TI Professional",INT 4C"TI Professional",INT 4D/AH=00h
--------d-4B---------------------------------
INT 4B - Common Access Method SCSI interface (draft revision 1.9)
	ES:DI -> CAM Control Block (see #1880 at INT 4F/AX=8100h)
Notes:	the CAM committee moved the interface to INT 4F after revision 1.9
	  to avoid conflicting with the IBM SCSI interface and the Virtual
	  DMA specification
	the installation check for the driver is the string "SCSI_CAM" eight
	  bytes past the INT 4Bh handler
	the only driver to date reported to use the CAM interface on INT 4B
	  instead of INT 4F is from Future Domain (which has drivers for CAM
	  on either interrupt)
SeeAlso: INT 4F/AX=8100h
Index:	installation check;Common Access Method SCSI interface
--------O-4B---------------------------------
INT 4B - Acorn BBC Master 512 - "OSBYTE" - MISC FUNCTIONS USING REGISTER PARAMS
	AL = function code
	BL = first parameter
	BH = second parameter (if needed)
Return: BL = first return parameter
	BH = second return parameter
	CF depends on function
SeeAlso: INT 40"Acorn",INT 4A"Acorn",INT 4C"Acorn"
--------d-4B80-------------------------------
INT 4B - IBM SCSI interface
	AH = 80h
	AL = 00h-10h (Corel PowerSCSI INT4BCAM.SYS)
	further details not yet available
--------d-4B8102DX0000-----------------------
INT 4B - Virtual DMA Specification (VDS) - GET VERSION
	AX = 8102h
	DX = 0000h
Return: CF clear if successful
	    AH = major version number
	    AL = minor version number
	    BX = product number (see #1869)
	    CX = product revision number
		always 0000h for QMAPS and HPMM.SYS
		always 0001h for Microsoft's EMM386.EXE v4.20-4.41
	    DX = flags (see #1871)
	    SI:DI = maximum DMA buffer size
	CF set on error
	    AL = error code (see #1870)
Note:	bit 5 of 0040h:007Bh is supposed to be set if VDS is supported; this is
	  apparently not always the case
SeeAlso: INT 2C/AX=002Bh,INT 31
Index:	installation check;Virtual DMA Spec

(Table 1869)
Values for VDS product number:
 0000h	for Quadtel's QMAPS and Hewlett-Packard's HPMM.SYS
 0001h	for Microsoft's EMM386.EXE
 0003h	for Windows 3.x WIN386.EXE
 0300h	OS/2 (all versions to date)
 0EDCh	for DR-DOS 6.0 EMM386.SYS
 4560h	("E`") for Qualitas' 386MAX
 4D43h	("MC") for V Communications' Memory Commander
 5145h	("QE") for Quarterdeck's QEMM-386
 524Dh	("RM") for Helix's Netroom RM386

(Table 1870)
Values for VDS error code:
 01h	region not in contiguous memory
 02h	region crossed a physical alignment boundary
 03h	unable to lock pages
 04h	no buffer available
 05h	region too large for buffer
 06h	buffer currently in use
 07h	invalid memory region
 08h	region was not locked
 09h	number of physical pages greater than table length
 0Ah	invalid buffer ID
 0Bh	copy out of buffer range
 0Ch	invalid DMA channel number
 0Dh	disable count overflow
 0Eh	disable count underflow
 0Fh	function not supported
 10h	reserved flag bits set in DX

Bitfields for VDS flags:
Bit(s)	Description	(Table 1871)
 0	PC/XT bus (DMA in first megabyte only)
 1	physical buffer/remap region in first megabyte
 2	automatic remap enabled
 3	all memory is physically contiguous
 4-15	reserved (zero)
--------d-4B8103-----------------------------
INT 4B - Virtual DMA Specification - LOCK DMA REGION
	AX = 8103h
	DX = flags (see #1872)
	ES:DI -> DMA descriptor structure (see #1873,#1874,#1875)
Return: CF clear if successful
	    DDS physical address field filled in
	    DDS buffer ID field filled (0000h if no buffer allocated)
	CF set on error
	    AL = error code (see #1870)
	    DDS region size field filled wth maximum contiguous length in bytes
BUGS:	Windows 3.0 does not correctly support automatic remapping or copying
	  in enhanced mode
	Windows 3.0 in enhanced mode does not return a correct code on error
SeeAlso: AX=8104h,AX=8105h

Bitfields for VDS flags:
Bit(s)	Description	(Table 1872)
 0	reserved (zero)
 1	data should be copied into buffer (ignored if 2 set)
 2	buffer should not be allocated if region noncontiguous or crosses
	  physical alignment boundary specified by 4-5
 3	don't attempt automatic remap
 4	region must not cross 64K physical alignment boundary
 5	region must not cross 128K physical alignment boundary
 6-15	reserved (zero)

Format of DMA descriptor structure (DDS):
Offset	Size	Description	(Table 1873)
 00h	DWORD	region size
 04h	DWORD	offset
 08h	WORD	segment/selector
 0Ah	WORD	buffer ID
 0Ch	DWORD	physical address

Format of Extended DMA descriptor structure (EDDS):
Offset	Size	Description	(Table 1874)
 00h	DWORD	region size
 04h	DWORD	offset
 08h	WORD	segment/selector
 0Ah	WORD	reserved
 0Ch	WORD	number available
 0Eh	WORD	number used
 10h	DWORD	region 0 physical address
 14h	DWORD	region 0 size in bytes
 18h	DWORD	region 1 physical address
 1Ch	DWORD	region 1 size in bytes
	...

Format of Extended DMA descriptor structure (EDDS) with page table entries:
Offset	Size	Description	(Table 1875)
 00h	DWORD	region size
 04h	DWORD	offset
 08h	WORD	segment/selector
 0Ah	WORD	reserved
 0Ch	WORD	number available
 0Eh	WORD	number used
 10h	DWORD	page table entry 0 (same as 80386 page table entry)
 14h	DWORD	page table entry 1
	...
Note:	bits 1-11 of the page table entries should be zero; bit 0 set if page
	  is present and locked
--------d-4B8104-----------------------------
INT 4B - Virtual DMA Specification - UNLOCK DMA REGION
	AX = 8104h
	DX = flags
	    bit 0: reserved (zero)
	    bit 1: data should be copied out of buffer
	    bits 2-15 reserved (zero)
	ES:DI -> DMA descriptor structure (see #1873,#1874) with region size,
		  physical address, and buffer ID fields set
Return: CF clear if successful
	    DDS physical address field set
		 DDS buffer ID field set (0000h if no buffer allocated)
	CF set on error
	    AL = error code (see #1870)
	    DDS region size field filled wth maximum contiguous length in bytes
Note:	Windows 3.0 does not check whether the region extends beyond the end of
	  a segment
BUG:	Windows 3.0 in enhanced mode does not return a correct code on error
SeeAlso: AX=8103h,AX=8106h
--------d-4B8105-----------------------------
INT 4B - Virtual DMA Specification - SCATTER/GATHER LOCK REGION
	AX = 8105h
	DX = flags (see #1876)
	ES:DI -> Extended DMA descriptor structure (see #1874,#1875)
		  region size, linear segment, linear offset, and number avail
		  fields set
Return: CF clear if successful
	    EDDS number used field set
	    if DX bit 6 set, lower 12 bits of BX = offset in first page
	CF set on error
	    AL = error code (see #1870)
	    EDDS region size field filled with max length in bytes that can be
		  locked and described in the EDDS table
BUG:	Windows 3.0 in enhanced mode may return zero instead of the physical
	  page address for pages which were originally not present
SeeAlso: AX=8103h,AX=8106h

Bitfields for VDS flags:
Bit(s)	Description	(Table 1876)
 0-5	reserved (zero)
 6	EDDS should be returned with page table entries
 7	only present pages should be locked (not-present pages receive entry
	  of 0000h)
 8-15	reserved (zero)
--------d-4B8106-----------------------------
INT 4B - Virtual DMA Specification - SCATTER/GATHER UNLOCK REGION
	AX = 8106h
	DX = flags (see #1877)
	ES:DI -> Extended DMA descriptor structure (see #1874,#1875) returned
		  by AX=8105h
Return: CF clear if successful
	CF set on error
	    AL = error code (see #1870)
Note:	according to the Microsoft version of the VDS specification, the
	  actual scatter/gather list is ignored, while according to the IBM
	  version of the specification, "the result of a LOCK operation"
	  must be provided to this function
SeeAlso: AX=8104h,AX=8105h

Bitfields for VDS flags:
Bit(s)	Description	(Table 1877)
 0-5	reserved (zero)
 6	EDDS contains page table entries
 7	EDDS may contain not-present pages (entry = 0000h)
 8-15	reserved (zero)
--------d-4B8107-----------------------------
INT 4B - Virtual DMA Specification - REQUEST DMA BUFFER
	AX = 8107h
	DX = flags
	    bit 0: reserved (zero)
	    bit 1: data should be copied into buffer
	    bits  2-15 reserved (zero)
	ES:DI -> DMA descriptor structure (see #1873) with region size set
		  (also region offset and region segment if DX bit 1 set)
Return: CF clear if successful
	    DDS physical address and buffer ID set
	    DDS region size filled with length of buffer
	CF set on error
	    AL = error code (see #1870)
SeeAlso: AX=8108h
--------d-4B8108-----------------------------
INT 4B - Virtual DMA Specification - RELEASE DMA BUFFFER
	AX = 8108h
	DX = flags
	    bit 0: reserved (zero)
	    bit 1: data should be copied out of buffer
	    bits 2-15 reserved (zero)
	ES:DI -> DMA descriptor structure (see #1873,#1874) with buffer ID set
		  (also region size/region offset/segment if DX bit 1 set)
Return: CF clear if successful
	CF set on error
	    AL = error code (see #1870)
BUG:	under Windows 3.0 Enhanced mode, you must specify that data be copied
	  for this function to work correctly
SeeAlso: AX=8107h
--------d-4B8109DX0000-----------------------
INT 4B - Virtual DMA Specification - COPY INTO DMA BUFFER
	AX = 8109h
	DX = 0000h
	ES:DI -> DMA descriptor structure (see #1873,#1874) with buffer ID,
		  region segment/offset, and region size fields set
	BX:CX = starting offset into DMA buffer
Return: CF clear if successful
	CF set on error
	    AL = error code (see #1870)
BUG:	Windows 3.0 Enhanced mode does not correctly interpret the copy count
SeeAlso: AX=810Ah
--------d-4B810ADX0000-----------------------
INT 4B - Virtual DMA Specification - COPY OUT OF DMA BUFFER
	AX = 810Ah
	DX = 0000h
	ES:DI -> DMA descriptor structure (see #1873,#1875) with buffer ID,
		  region segment/offset, and region size fields set
	BX:CX = starting offset into DMA buffer
Return: CF clear if successful
	CF set on error
	    AL = error code (see #1870)
BUG:	Windows 3.0 Enhanced mode does not correctly interpret the copy count
SeeAlso: AX=8109h
--------d-4B810B-----------------------------
INT 4B - Virtual DMA Specification - DISABLE DMA TRANSLATION
	AX = 810Bh
	BX = DMA channel number
	DX = 0000h
Return: CF clear if successful
	CF set on error
		 AL = error code (see #1870)
SeeAlso: AX=810Ch
--------d-4B810C-----------------------------
INT 4B - Virtual DMA Specification - ENABLE DMA TRANSLATION
	AX = 810Ch
	BX = DMA channel number
	DX = 0000h
Return: CF clear if successful
	    ZF set if disable count decremented to zero
	CF set on error
	    AL = error code (see #1870)
SeeAlso: AX=810Bh
--------Q-4B810D-----------------------------
INT 4B - QEMM-386 - BUG
	AX = 810Dh
Note:	the code in QEMM v5.11 and 6.00 jumps to an invalid location on this
	  call
--------h-4C---------------------------------
INT 4C - Z100 - Slave 8259 - S100 vectored line 4
SeeAlso: INT 4B"Z100",INT 4D"Z100"
--------b-4C---------------------------------
INT 4C - TI Professional PC - CLOCK/ANALOG INTERFACE
	no details available
SeeAlso: INT 40"TI Professional",INT 49"TI Professional"
SeeAlso: INT 4A"TI Professional",INT 4B"TI Professional",INT 4D/AH=00h
SeeAlso: INT 58"TI Professional"
--------O-4C---------------------------------
INT 4C - Acorn BBC Master 512 - "OSCLI" - INTERPRET COMMAND LINE
	DS:BX -> CR-terminated command string
Return: FLAGS destroyed
SeeAlso: INT 40"Acorn",INT 4A"Acorn",INT 4B"Acorn"
--------h-4D---------------------------------
INT 4D - Z100 - Slave 8259 - S100 vectored line 5
SeeAlso: INT 4C"Z100",INT 4E"Z100"
--------B-4D00-------------------------------
INT 4D - TI Professional PC - DISK - RESET DISK SYSTEM
	AH = 00h
	DL = drive (if bit 7 is set both hard disks and floppy disks reset)
Return: AH = status (see #0140 at INT 13/AH=01h)
	CF clear if successful (returned AH=00h)
	CF set on error
Note:	this function is the same as INT 13/AH=00h on a standard PC BIOS
SeeAlso: AH=01h,AH=02h,AH=08h,AH=0Bh,INT 13/AH=00h,INT 46"TI Professional"
SeeAlso: INT 48"TI Professional",INT 4A"TI Professional"
--------B-4D01-------------------------------
INT 4D - TI Professional PC - DISK - GET STATUS OF LAST OPERATION
	AH = 01h
	DL = drive (bit 7 set for hard disk)
Return: CF clear if status unchanged
	CF set if status changed since last call
	AH = 00h
	AL = status of previous operation (see #0140 at INT 13/AH=01h)
Notes:	this function is nearly the same as INT 13/AH=01h on a standard PC BIOS
	the TI's BIOS tranparently performs a number of retries, and an error
	  status is only reported if all of the retries fail.  To get the error
	  status if the operation succeeded on a retry, use AH=07h instead
SeeAlso: AH=00h,AH=07h,INT 13/AH=01h
--------B-4D02-------------------------------
INT 4D - TI Professional PC - DISK - READ SECTOR(S) INTO MEMORY
	AH = 02h
	AL = number of sectors to read (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
	     high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> data buffer
Return: CF set on error
	    if AH = 11h (corrected ECC error), AL = burst length
	CF clear if successful
	AH = status (see #0140 at INT 13/AH=01h)
	AL = number of sectors transferred
	ES:BX -> buffer for last sector processed (including one with errors)
SeeAlso: AH=00h,AH=01h,AH=03h,AH=04h,INT 13/AH=02h
--------B-4D03-------------------------------
INT 4D - TI Professional PC - DISK - WRITE SECTOR(S) FROM MEMORY
	AH = 03h
	AL = number of sectors to write (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
	     high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> buffer containing data
Return: CF set on error
	    if AH = 11h (corrected ECC error), AL = burst length
	CF clear if successful
	AH = status (see #0140 at INT 13/AH=01h)
	AL = number of sectors transferred
	ES:BX -> buffer for last sector processed (including one with errors)
SeeAlso: AH=00h,AH=01h,AH=02h,AH=04h,INT 13/AH=03h
--------B-4D04-------------------------------
INT 4D - TI Professional PC - DISK - VERIFY DISK SECTOR CRC(S)
	AH = 04h
	AL = number of sectors to verify (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
	     high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> data buffer
Return: CF set on error
	    if AH = 11h (corrected ECC error), AL = burst length
	CF clear if successful
	AH = status (see #0140 at INT 13/AH=01h)
	AL = number of sectors transferred
	ES:BX -> buffer for last sector processed (including one with errors)
Note:	even though no data is transferred, ES:BX must still be valid
SeeAlso: AH=00h,AH=01h,AH=02h,AH=06h,INT 13/AH=04h
--------B-4D06-------------------------------
INT 4D - TI Professional PC - DISK - VERIFY DISK SECTOR(S)
	AH = 06h
	AL = number of sectors to verify (must be nonzero)
	CH = low eight bits of cylinder number
	CL = sector number 1-63 (bits 0-5)
		  high two bits of cylinder (bits 6-7, hard disk only)
	DH = head number
	DL = drive number (bit 7 set for hard disk)
	ES:BX -> data buffer
Return: CF set on error
	    if AH = 11h (corrected ECC error), AL = burst length
	CF clear if successful
	AH = status (see #0140 at INT 13/AH=01h)
	AL = number of sectors transferred
	ES:BX -> buffer for last sector processed (including one with errors)
Note:	even though no data is transferred, ES:BX must still be valid because
	  an actual comparison with disk data is performed, not just the CRC
	  check of the standard PC BIOS or INT 4D/AH=04h
SeeAlso: AH=00h,AH=01h,AH=02h,AH=04h,INT 13/AH=04h
--------B-4D07-------------------------------
INT 4D - TI Professional PC - DISK - GET RETRY STATUS OF LAST OPERATION
	AH = 07h
	DL = drive (bit 7 set for hard disk)
Return: CF clear if status unchanged
	CF set if status changed since last call
	AH = 00h
	AL = status of previous operation (see #0140 at INT 13/AH=01h)
Notes:	this function is nearly the same as INT 13/AH=01h on a standard PC BIOS
	the TI's BIOS tranparently performs a number of retries; this function
	  returns the error status of a failed operation even if the operation
	  succeeded on a retry
SeeAlso: AH=00h,AH=01h,INT 13/AH=01h
--------B-4D08-------------------------------
INT 4D - TI Professional PC - DISK - SET STANDARD DEVICE INTERFACE TABLE
	AH = 08h
	DL = drive number (00h-03h)
	AL = drive type
	    00h single-sided 48 tpi (40-track, 8 sectors, 512 bytes/sector)
	    01h double-sided 48 tpi (40-track, 8 sectors, 512 bytes/sector)
	    02h single-sided 96 tpi (80-track, 8 sectors, 512 bytes/sector)
	    03h double-sided 96 tpi (80-track, 8 sectors, 512 bytes/sector)
Return: nothing???
SeeAlso: AH=00h,AH=09h
--------B-4D09-------------------------------
INT 4D - TI Professional PC - DISK - SET DEVICE INTERFACE TABLE ADDRESS
	AH = 09h
	DL = drive number (00h-07h)
	ES:BX -> Device Interface Table (see #1878)
Return: nothing???
SeeAlso: AH=00h,AH=08h,AH=0Ah,INT 1E

Format of TI Professional PC Device Interface Table:
Offset	Size	Description	(Table 1878)
 00h	DWORD	-> entry point for disk routine
 04h	WORD	bytes per sector
 06h	BYTE	sectors per track
 07h	BYTE	number of heads
 08h	BYTE	number of cylinders
 09h	BYTE	retry count
 0Ah	BYTE	precompensation start
SeeAlso: #0572 at INT 1E
--------B-4D0A-------------------------------
INT 4D - TI Professional PC - DISK - GET DEVICE INTERFACE TABLE ADDRESS
	AH = 0Ah
	DL = drive number (00h-07h)
Return:	AH = status
	ES:BX -> Device Interface Table (see #1878)
SeeAlso: AH=00h,AH=08h,AH=09h,INT 1E
--------B-4D0B-------------------------------
INT 4D - TI Professional PC - DISK - TURN OFF ALL DRIVES
	AH = 0Bh
Return: AH = 00h
Note:	used for diagnostics or to conserve power
SeeAlso: AH=00h
--------h-4E---------------------------------
INT 4E - Z100 - Slave 8259 - S100 vectored line 6
SeeAlso: INT 4D"Z100",INT 4F"Z100"
--------b-4E---------------------------------
INT 4E - TI Professional PC - TIME-OF-DAY CLOCK DEVICE SERVICE ROUTINE
	no details available
SeeAlso: INT 40"TI Professional",INT 48"TI Professional"
SeeAlso: INT 4A"TI Professional",INT 4F"TI Professional"
--------h-4F---------------------------------
INT 4F - Z100 - Slave 8259 - S100 vectored line 7
SeeAlso: INT 4E"Z100"
--------b-4F---------------------------------
INT 4F - TI Professional PC - SYSTEM CONFIGURATION CALL
	no details available
SeeAlso: INT 40"TI Professional",INT 49"TI Professional"
SeeAlso: INT 4B"TI Professional",INT 4D/AH=00h,INT 4E"TI Professional"
--------d-4F8100-----------------------------
INT 4F - Common Access Method SCSI interface rev 2.3 - SEND CCB TO XPT/SIM
	AX = 8100h
	ES:BX -> CAM Control Block (CCB) (see #1880)
Return: AH = status
	    00h successful
	    01h invalid CCB address (0000h:0000h)
Note:	the SCSI Interface Module (SIM) may complete the requested function
	  and invoke the completion callback function before this call returns
SeeAlso: AX=8200h,INT 2F/AX=7F01h,INT 4B"Common Access Method"

(Table 1879)
Values for CAM function code:
 00h	NOP
 01h	execute SCSI I/O
 02h	get device type
 03h	path inquiry
 04h	release SIM queue
 05h	set async callback
 06h	set device type
 07h-0Fh reserved
 10h	abort SCSI command
 11h	reset SCSI bus
 12h	reset SCSI device
 13h	terminate I/O process
 14h-1Fh reserved
 20h	engine inquiry
 21h	execute engine request
 22h-2Fh reserved
 30h	enable logical unit number
 31h	execute target I/O
 32h-7Fh reserved
 80h-FFh vendor-specific functions

Format of CAM Control Block:
Offset	Size	Description	(Table 1880)
 00h	DWORD	physical address of this CCB
 04h	WORD	CAM control block length
 06h	BYTE	function code (see #1879)
 07h	BYTE	CAM status (see #1883)
 08h	BYTE	SCSI status
 09h	BYTE	path ID (FFh = XPT)
 0Ah	BYTE	target ID
 0Bh	BYTE	logical unit number
 0Ch	WORD	CAM flags (see #1881)
 0Eh	BYTE	CAM address flags (see #1882)
 0Fh	BYTE	target-mode flags (see #1884)
---function 02h---
 10h	DWORD	pointer to 36-byte buffer for inquiry data or 0000h:0000h
 14h	BYTE	peripheral device type of target logical unit number
---function 03h---
 10h	BYTE	version number (00h-07h prior to rev 1.7, 08h = rev 1.7,
		09h-FFh = rev no, i.e. 23h = rev 2.3)
 11h	BYTE	SCSI capabilities (see #1885)
 12h	BYTE	target mode support
		bit 7: processor mode
		bit 6: phase-cognizant mode
		bit 5-0: reserved
 13h	BYTE	miscellaneous flags
		bit 7: scanned high to low instead of low to high
		bit 6: removables not included in scan
		bit 5: inquiry data not kept by XPT
		bits 4-0: reserved
 14h	WORD	engine count
 16h 14 BYTEs	vendor-specific data
 24h	DWORD	size of private data area
 28h	DWORD	asynchronous event capabilities (see #1886)
 2Ch	BYTE	highest path ID assigned
 2Dh	BYTE	SCSI device ID of initiator
 2Eh  2 BYTEs	reserved
 30h 16 BYTEs	SIM vendor ID
 40h 16 BYTEs	HBA (host bus adaptor) vendor ID
 50h  4 BYTEs	operating-system dependant usage
---functions 00h,04h,11h,12h---
 no additional fields
---function 05h---
 10h	DWORD	asynchronous event enables (see function 03h above)
 14h	DWORD	pointer to asynchronous callback routine (see #1888)
 18h	DWORD	pointer to peripheral driver buffer
 1Ch	BYTE	size of peripheral buffer
---function 06h---
 10h	BYTE	peripheral device type of target
---functions 10h,13h---
 10h	DWORD	pointer to CCB to be aborted
---function 20h---
 10h	WORD	engine number
 12h	BYTE	engine type
		00h buffer memory
		01h lossless compression
		02h lossy compression
		03h encryption
 13h	BYTE	engine algorithm ID
		00h vendor-unique
		01h LZ1 variation 1 (STAC)
		02h LZ2 variation 1 (HP DCZL)
		03h LZ2 variation 2 (Infochip)
 14h	DWORD	engine memory size
---function 21h---
 10h	DWORD	pointer to peripheral driver
 14h  4 BYTEs	reserved
 18h	DWORD	OS-dependent request-mapping info
 1Ch	DWORD	address of completion callback routine
 20h	DWORD	pointer to scatter/gather list or data buffer
 24h	DWORD	length of data transfer
 28h	DWORD	pointer to engine buffer data
 2Ch  2 BYTEs	reserved
 2Eh	WORD	number of scatter/gather entries
 30h	DWORD	maximum destination data length
 34h	DWORD	length of destination data
 38h	DWORD	source residual length
 3Ch 12 BYTEs	reserved
 48h	DWORD	OS-dependent timeout value
 4Ch  4 BYTEs	reserved
 50h	WORD	engine number
 52h	WORD	vendor-unique flags
 54h  4 BYTEs	reserved
 58h  N BYTEs	private data area for SIM
---function 30h---
 10h	WORD	group 6 vendor-unique CDB length
 12h	WORD	group 7 vendor-unique CDB length
 14h	DWORD	pointer to target CCB list
 18h	WORD	number of target CCBs
---other functions---
 10h	DWORD	pointer to peripheral driver
 14h	DWORD	pointer to next CCB
 18h	DWORD	OS-dependent request mapping information
 1Ch	DWORD	address of completion callback routine (see #1887)
 20h	DWORD	pointer to scatter/gather list or data buffer
 24h	DWORD	length of data transfer
 28h	DWORD	pointer to sense info buffer
 2Ch	BYTE	length of sense info buffer
 2Dh	BYTE	CDB length
 2Eh	WORD	number of scatter/gather entries
 30h  4 BYTEs	reserved
 34h	BYTE	SCSI status
 35h  3 BYTEs	reserved
 38h	DWORD	residual length
 40h 12 BYTEs	Command Descriptor Block (CDB)
 44h	DWORD	OS-dependent timeout value
 48h	DWORD	pointer to message buffer
 4Ch	WORD	length of message buffer
 4Eh	WORD	vendor-unique flags
 50h	BYTE	tag queue action
 51h  3 BYTEs	reserved
 54h  N BYTEs	private data area for SIM

Bitfields for CAM flags:
Bit(s)	Description	(Table 1881)
 0	CDB is a pointer
 1	tagged queue action enable
 2	linked CDB
 3	disable callback on completion
 4	scatter/gather
 5	disable autosense
 7-6	direction (00 reserved, 01 in, 10 out, 11 no data transfer)
 9-8	reserved
 10	engine synchronize
 11	SIM queue freeze
 12	SIM queue priority
	1 head insertion
	0 tail insertion (normal)
 13	disable synchronous transfers	/ exclusive
 14	initiate synchronous transfers	\ mutually
 15	disable disconnect

Bitfields for CAM address flags:
Bit(s)	Description	(Table 1882)
 7	SG list/data (0 = host, 1 = engine)
 6	CDB pointer    (6-1: 0=virtual addr, 1=phys addr)
 5	SG list/data
 4	sense buffer
 3	message buffer
 2	next CCB
 1	callback on completion
 0	reserved

(Table 1883)
Values for CAM status:
 00h	request in progress
 01h	request successful
 02h	host aborted request
 03h	unable to abort request
 04h	request completed with error
 05h	CAM is busy
 06h	invalid request
 07h	invalid path ID
 08h	no such SCSI device
 09h	unable to terminate I/O process
 0Ah	timeout on target selection
 0Bh	timeout on command
 0Dh	receive message rejection
 0Eh	sent/received SCSI bus reset
 0Fh	detected uncorrectable parity error
 10h	Autosense request failed
 11h	no HBA detected
 12h	data over/underrun
 13h	bus freed unexpectedly
 14h	target bus phase sequence failure
 15h	CCB too small
 16h	requested capability not available
 17h	sent bus device reset
 18h	terminate I/O process
 38h	invalid LUN
 39h	invalid target ID
 3Ah	unimplemented function
 3Bh	nexus not established
 3Ch	invalid initiator ID
 3Dh	received SCSI Command Descriptor Block
 3Eh	LUN already enabled
 3Fh	SCSI bus busy
Note:	bit 6 set to indicate frozen SIM queue
	bit 7 set to indicate valid autosense

Bitfields for CAM target-mode flags:
Bit(s)	Description	(Table 1884)
 7	data buffer valid
 6	status valid
 5	message buffer valid
 4	reserved
 3	phase-cognizant mode
 2	target CCB available
 1	disable autodisconnect
 0	disable autosave/restore

Bitfields for SCSI capabilities:
Bit(s)	Description	(Table 1885)
 7	modify data pointers
 6	wide bus (32 bits)
 5	wide bus (16 bits)
 4	synchronous transfers
 3	linked commands
 2	reserved
 1	tagged queueing
 0	soft reset

Bitfields for CAM asynchronous event capabilities:
Bit(s)	Description	(Table 1886)
 31-24	vendor-specific
 23-8	reserved
 7	new devices found during rescan
 6	SIM module deregistered
 5	SIM module registered
 4	sent bus device reset to target
 3	SCSI AEN
 2	reserved
 1	unsolicited reselection
 0	unsolicited SCSI bus reset

(Table 1887)
Values completion callback function is called with:
	interrupts disabled
	ES:BX -> completed CCB

(Table 1888)
Values asynchronous callback function is called with:
	AH = opcode
	AL = path ID generating callback
	DH = target ID causing event
	DL = LUN causing event
	CX = data byte count (if applicable)
	ES:BX -> data buffer (if applicable)
Return: all registers preserved
--------d-4F8200CX8765-----------------------
INT 4F - Common Access Method SCSI interface rev 2.3 - INSTALLATION CHECK
	AX = 8200h
	CX = 8765h
	DX = CBA9h
Return: AH = 00h if installed
	    CX = 9ABCh
	    DX = 5678h
	    ES:DI -> "SCSI_CAM"
SeeAlso: AX=8100h,INT 4B"Common Access Method"
--------N-50---------------------------------
INT 50 - TIL Xpert AIM (X.25)
	AH = function
--------H-50---------------------------------
INT 50 - IRQ0 relocated by DESQview
Range:	INT 50 to INT F8, selected automatically
Notes:	this is the default location for older versions; DESQview v2.26+
	  searches for unused ranges of interrupts and uses the lowest
	  available range in its list for relocating these IRQs and the next
	  lowest for relocating IRQ8-IRQ15
	a range of eight interrupts starting at a multiple of 8 is considered
	  available if all vectors are identical and it has not been excluded
	  with an /XB:nn commandline switch
	the list of ranges for v2.26 is 50h,58h,68h,78h,F8h (if < two="" of="" these="" are="" available,="" f8h="" and="" then="" 50h="" are="" used="" anyway)="" the="" list="" of="" ranges="" for="" v2.31+="" is="" 68h,78h,88h-b8h,f8h="" (if="">< two="" of="" these="" are="" available,="" f8h="" and="" then="" f0h="" are="" used="" anyway)="" seealso:="" int="" 08"irq0",int="" 51"desqview",int="" 54"desqview",int="" 58"desqview"="" seealso:="" int="" d8"screen="" thief"="" --------h-50---------------------------------="" int="" 50="" -="" irq0="" relocated="" by="" ibm="" 3278="" emulation="" control="" program="" seealso:="" int="" 51"ibm="" 3278"="" --------h-50---------------------------------="" int="" 50="" -="" irq0="" relocated="" by="" os/2="" v1.x="" seealso:="" int="" 51"os/2"="" ----------50---------------------------------="" int="" 50="" -="" ti="" professional="" pc="" -="" fatal="" software="" error="" trap="" no="" details="" available="" note:="" for="" system="" use="" only="" seealso:="" int="" 40"ti="" professional",int="" 4f"ti="" professional"="" seealso:="" int="" 51"ti="" professional",int="" 53"ti="" professional"="" --------v-500000-----------------------------="" int="" 50="" -="" vanderaart="" text="" windows,="" pc="" thuis="" shell="" -="" open="" text="" window="" ax="0000h" es:bx="" -=""> name string or ES:0000h if none
	CH,CL = row,column of upper left corner
	DH,DL = row,column of lower right corner
Return: AX = window handle or
	    0000h if not installed
	    FFFFh on error
SeeAlso: AX=0001h,AX=0002h"TEXT WINDOWS"
--------V-500001-----------------------------
INT 50 - Vanderaart TEXT WINDOWS, PC Thuis Shell - CLOSE TEXT WINDOW
	AX = 0001h
	DI = window handle
SeeAlso: AX=0000h
--------V-500002-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - PUT CHARACTER IN WINDOW
	AX = 0002h
	BL = character
	BH = attribute
	DL = column
	DH = row
	DI = window handle
Return: AX = status
	    0000h if successful
	    FFFFh if outside window
SeeAlso: AX=0000h
--------l-500002-----------------------------
INT 50 - PC Thuis Organizer Shell - PLOT TEXT
	AX = 0002h
	ES:BX -> text string
	DH,DL = row,column of upper left corner
	DI = window handle
Return: AX = status
	    0000h successful (text fits in window)
	    FFFFh error
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
	  published in the June/July 1990 issue of PC Thuis Power magazine
--------V-500003-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - OUTPUT LINE TO WINDOW
	AX = 0003h
	ES:BX -> text string
	CX = string length (0000h if ASCIZ string)
	DL = position (FFh centered, else flush left)
	DH = starting row
	DI = window handle
Return: AX = status
	    0000h successful
	    FFFFh did not fit in window
--------l-500003-----------------------------
INT 50 - PC Thuis Organizer Shell - WRITE FILE
	AX = 0003h
	ES:BX -> data to be written
	CX = number of bytes to write
	DS:SI -> filename
Return: AX = status
	    0000h successful
	    FFFFh error
SeeAlso: AX=0004h"Shell"
--------V-500004-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - GET KEY
	AX = 0004h
	CH = type
	    00h any key
	    01h 'J' or 'N' (Dutch for yes/no)
Return: AX = key
SeeAlso: INT 16/AH=00h
--------l-500004-----------------------------
INT 50 - PC Thuis Organizer Shell - READ FILE
	AX = 0004h
	ES:BX -> buffer for data
	CX = number of bytes to read or 0000h for entire file
	DL = file type
	    01h setting shell
	    02h setting sterm
	    03h INT21 file
	DS:SI -> filename
Return: AX = status
	    0000h successful
	    FFFFh error
Note:	file type numbers are maintained by John Vanderaart; if a new file type
	  is needed, a type number should be requested from him through the
	  magazine:
		PC Thuis BV
		Spaarne 55
		2011 CE HAARLEM
		The Netherlands
SeeAlso: AX=0003h"Shell"
--------V-500005-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - CHANGE ATTRIBUTE
	AX = 0005h
	BL = new attribute
	CH,CL = row,column of upper left corner
	DH,DL = row,column of lower right corner
	DI = window handle
--------l-500005-----------------------------
INT 50 - PC Thuis Organizer Shell - PROMPT YES/NO
	AX = 0005h
	ES:BX -> prompt string (ES:0000h if no prompt)
Return: AX = key pressed
	    0000h "J" (Dutch "Ja" = "Yes")
	    FFFFh "N" (Dutch "Nee" = "No")
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
	  published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: AX=0008h"PC Thuis"
--------V-500006-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - EDIT LINE IN WINDOW
	AX = 0006h
	ES:BX -> text string
	CH = type of input (see #1889)
	DH,DL = row,column of upper left corner
	DI = window handle
Return: AX = key which terminated entry
	    0000h Enter
	    0001h Esc
	    0002h Down arrow
	    0003h Up arrow
	    0004h F10

(Table 1889)
Values for type of input to Vanderaart Text Windows:
 00h	everything
 01h	uppercase only
 02h	positive numbers
 03h	Dutch postal code ("9999 AA")
 04h	'J' or 'N' (Dutch yes/no)
 05h	telephone or FAX number
 06h	positive or negative number
 07h	date (dd/mm/yy)
 08h	money
 09h	'1' through '8'
 0Ah	'1' through '4'
 0Bh	uppercase filenames
--------l-500006-----------------------------
INT 50 - PC Thuis Organizer Shell - ALERT USER
	AX = 0006h
	ES:BX -> string
--------l-500007-----------------------------
INT 50 - PC Thuis Organizer Shell - DO LINE
	AX = 0007h
	ES:BX -> text string
	CX = string length in bytes (0000h if NUL-terminated)
	DL = FFh to center string, else flush left
	DH = upper left row
	DI = window handle
Return: AX = status
	    0000h successful
	    FFFFh error
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
	  published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: AX=0008h
--------l-500008-----------------------------
INT 50 - PC Thuis Organizer Shell - DO MENU
	AX = 0008h
	ES:BX -> menu structure
Return: AL = index 1 or FFh if not selected
	AH = index 2 or FFh if not selected
	BL = index 3 or FFh if not selected
	BH = index 4 or FFh if not selected
SeeAlso: AX=0005h"PC Thuis",AX=0007h,AX=000Ch
--------l-500009-----------------------------
INT 50 - PC Thuis Organizer Shell - MESSAGE ON
	AX = 0009h
	ES:BX -> message string
SeeAlso: AX=000Ah
--------l-50000A-----------------------------
INT 50 - PC Thuis Organizer Shell - MESSAGE OFF
	AX = 000Ah
SeeAlso: AX=0009h
--------l-50000B-----------------------------
INT 50 - PC Thuis Organizer Shell - CHANGE ATTRIBUTE
	AX = 000Bh
	BL = new attribute
	CH,CL = row,column of upper left corner
	DH,DL = row,column of lower right corner
	DI = window handle
--------l-50000C-----------------------------
INT 50 - PC Thuis Organizer Shell - DO REQUEST
	AX = 000Ch
	ES:BX -> request structure
Return: AX = status
	    0000h confirmed
	    FFFFh denied
SeeAlso: AX=0008h
--------l-50000D-----------------------------
INT 50 - PC Thuis Organizer Shell - EDIT LINE
	AX = 000Dh
	ES:BX -> text string
	CL = length
	CH = input type (see #1890)
	DH,DL = row,column of upper left corner
	DI = window handle
Return: AX = result code
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
	  published in the June/July 1990 issue of PC Thuis Power magazine

Bitfields for input type:
Bit(s)	Description	(Table 1890)
 0	force uppercase
 1	integer
 2	no spaces allowed
 3	no cursor keys
--------l-50000E-----------------------------
INT 50 - PC Thuis Organizer Shell - PLOT CHARACTER
	AX = 000Eh
	BL = character
	BH = attribute
	DH,DL = row,column at which to plot
	DI = window handle
Return: AX = status
		 0000h successful
	    FFFFh errror
--------l-50000F-----------------------------
INT 50 - PC Thuis Organizer Shell - EMPTY WINDOW
	AX = 000Fh
	BL = character
	BH = attribute
	DI = window handle
--------l-500010-----------------------------
INT 50 - PC Thuis Organizer Shell - TRACE MENU
	AX = 0010h
	ES:BX -> first menu structure
	CL = hotkey to look up
Return: AL = index 1 or FFh if not selected
	AH = index 2 or FFh if not selected
	BL = index 3 or FFh if not selected
	BH = index 4 or FFh if not selected
Index:	hotkeys;PC Thuis Organizer Shell
--------l-500011-----------------------------
INT 50 - PC Thuis Organizer Shell - MOVE MEMORY
	AX = 0011h
	DS:SI -> source
	ES:DI -> destination
	CX = number of bytes to move (0000h = until NUL string terminator???)
SeeAlso: AX=0012h
--------l-500012-----------------------------
INT 50 - PC Thuis Organizer Shell - COMPARE MEMORY
	AX = 0012h
	DS:SI -> source
	ES:DI -> destination
	CX = number of bytes to compare (0000h=until NUL string terminator???)
Return: AX = status
	    0000h same
	    FFFFh different
SeeAlso: AX=0011h
--------l-500013-----------------------------
INT 50 - PC Thuis Organizer Shell - GET KEY
	AX = 0013h
	CH = type flags
	    bit 0: force uppercase
	    bit 1: integer
	    bit 2: no spaces
Return: AX = keystroke
--------l-500014-----------------------------
INT 50 - PC Thuis Organizer Shell - SCROLL WINDOW
	AX = 0014h
	BL = direction
	    06h up
	    07h down
	BH = attribute
	DI = window handle
SeeAlso: INT 10/AH=06h,INT 10/AH=07h
--------l-500015-----------------------------
INT 50 - PC Thuis Organizer Shell - GET MEMORY HANDLE
	AX = 0015h
	BL = handle size
	    00h 65536 bytes (64K)
	    01h 65535 bytes (64K-1)
	    02h 32768 bytes (32K)
	    03h 32767 bytes (32K-1)
Return: AX = segment
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
	  published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: INT 21/AH=48h
--------H-51---------------------------------
INT 51 - IRQ1 relocated by DESQview
Range:	INT 51 to INT F9, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview"
--------H-51---------------------------------
INT 51 - IRQ1 relocated by IBM 3278 emulation control program
SeeAlso: INT 50"IBM 3278",INT 54"IBM 3278"
--------H-51---------------------------------
INT 51 - IRQ1 relocated by OS/2 v1.x
SeeAlso: INT 50"OS/2",INT 54"OS/2"
----------51---------------------------------
INT 51 - TI Professional PC - RESTART TIMING EVENT
	no details available
Note:	for system use only
SeeAlso: INT 50"TI Professional",INT 52"TI Professional"
--------H-52---------------------------------
INT 52 - IRQ2 relocated by DESQview
Range:	INT 52 to INT FA, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview"
--------H-52---------------------------------
INT 52 - IRQ2 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 50"IBM 3278",INT 51"OS/2"
----------52---------------------------------
INT 52 - TI Professional PC - CANCEL TIMING EVENT
	no details available
Note:	for system use only
SeeAlso: INT 51"TI Professional",INT 53"TI Professional"
--------H-53---------------------------------
INT 53 - IRQ3 relocated by DESQview
Range:	INT 53 to INT FB, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview"
--------H-53---------------------------------
INT 53 - IRQ3 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 50"IBM 3278",INT 51"OS/2"
----------53---------------------------------
INT 53 - TI Professional PC - SVC INTERFACE
	no details available
Note:	for use by multitaskers
SeeAlso: INT 50"TI Professional",INT 54"TI Professional"
--------N-53---------------------------------
INT 53 - WEB??? - API
	BX = function
	    0000h ???
		AX = ???
		Return: AX = ???
		 0004h ???
	    0009h ???
	    0015h
		AX = ???
		DX = ???
	    0017h
Return: ???
Notes:	the installation check consists of looking for the signature "WEBCO"
	  immediately prior to the interrupt handler
	the above calls are made by Show Partner F/X v3.6 (see INT 10/AH=53h)
Index:	installation check;unknown|installation check;WEBCO
--------H-54---------------------------------
INT 54 - IRQ4 relocated by DESQview
Range:	INT 54 to INT FC, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-54---------------------------------
INT 54 - IRQ4 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
----------54---------------------------------
INT 54 - TI Professional PC - ACTIVATE TASK SUBROUTINE
	no details available
Note:	for use by multitaskers
SeeAlso: INT 50"TI Professional",INT 53"TI Professional"
----------545400-----------------------------
INT 54 U - Toshiba PCMCIA2 - INSTALLATION CHECK
	AX = 5400h
Return: AX = 0054h if installed
	    CX:DX -> INT function handler
--------H-55---------------------------------
INT 55 - IRQ5 relocated by DESQview
Range:	INT 55 to INT FD, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-55---------------------------------
INT 55 - IRQ5 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
--------b-55---------------------------------
INT 55 - TI Professional PC - RESERVED FOR FUTURE USE
	no details available
SeeAlso: INT 50"TI Professional",INT 56"TI Professional"
--------H-56---------------------------------
INT 56 - IRQ6 relocated by DESQview
Range:	INT 56 to INT FE, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-56---------------------------------
INT 56 - IRQ6 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
--------b-56---------------------------------
INT 56 - TI Professional PC - RESERVED FOR FUTURE USE
	no details available
SeeAlso: INT 50"TI Professional",INT 55"TI Professional"
--------H-57---------------------------------
INT 57 - IRQ7 relocated by DESQview
Range:	INT 57 to INT FF, selected automatically
Note:	this is the default location for older versions; see INT 50"DESQview"
	  for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-57---------------------------------
INT 57 - IRQ7 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
--------b-57---------------------------------
INT 57 - TI Professional PC - CRT MAPPING HOOK
	no details available
SeeAlso: INT 49"TI Professional",INT 50"TI Professional"
--------H-58---------------------------------
INT 58 - IRQ8 relocated by DESQview 2.26+
Range:	INT 58 to INT F8, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 59"DESQview",INT 70
--------H-58---------------------------------
INT 58 - IRQ0 relocated by DoubleDOS
SeeAlso: INT 08
--------b-58---------------------------------
INT 58 - TI Professional PC - SYSTEM TIMER 25ms HOOK
	no details available
SeeAlso: INT 43"TI Professional",INT 4C"TI Professional"
SeeAlso: INT 5A"TI Professional"
--------H-59---------------------------------
INT 59 - IRQ9 relocated by DESQview 2.26+
Range:	INT 59 to INT F9, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 58"DESQview",INT 5A"DESQview",INT 71
--------H-59---------------------------------
INT 59 - IRQ1 relocated by DoubleDOS
SeeAlso: INT 09
--------b-59---------------------------------
INT 59 - TI Professional PC - COMMON ROM HARDWARE INTERRUPT EXIT VECTOR
Desc:	all hardware interrupts on the TI Pro jump indirectly to the handler
	  pointed at by this interrupt vector to finish their handling of
	  the hardware interrupt
Notes:	the default handler decrements the interrupt count, restores registers
	  (including the stack pointer), sends an EOI to the interrupt
	  controller, and finally does an IRET
	can be used by multitaskers which need to get control on a regular
	  basis
SeeAlso: INT 40"TI Professional",INT 47"TI Professional"
SeeAlso: INT 53"TI Professional"
--------V-59---------------------------------
INT 59 - GSS Computer Graphics Interface (GSS*CGI)
	DS:DX -> block of 5 array pointers
Return: CF set on error
	    AX = error code
	CF clear if successful
	    AX = return code
Note:	INT 59 is the means by which GSS*CGI language bindings communicate with
	  GSS*CGI device drivers and the GSS*CGI device driver controller.
	also used by the IBM Graphic Development Toolkit
--------H-5A---------------------------------
INT 5A - IRQ10 relocated by DESQview 2.26+
Range:	INT 5A to INT FA, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 59"DESQview",INT 5B"DESQview",INT 72
--------H-5A---------------------------------
INT 5A - IRQ2 relocated by DoubleDOS
SeeAlso: INT 0A
--------N-5A---------------------------------
INT 5A - PC Cluster adapter BIOS entry address
	???
Return: ???
SeeAlso: INT 5B"PC Cluster"
--------b-5A---------------------------------
INT 5A - TI Professional PC - SYSTEM TIMER 100ms HOOK
	no details available
Note:	this interrupt is invoked on every fourth timer interrupt
SeeAlso: INT 43"TI Professional",INT 4C"TI Professional"
SeeAlso: INT 58"TI Professional"
--------H-5B---------------------------------
INT 5B - IRQ11 relocated by DESQview 2.26+
Range:	INT 5B to INT FB, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5A"DESQview",INT 5C"DESQview",INT 73
--------H-5B---------------------------------
INT 5B - IRQ3 relocated by DoubleDOS
SeeAlso: INT 0B
--------N-5B---------------------------------
INT 5B - PC cluster adapter - RELOCATED INT 19
SeeAlso: INT 19,INT 5A"PC Cluster"
--------N-5B---------------------------------
INT 5B - AT&T Starlan Extended NetBIOS (variable length names)
	ES:BX -> Network Control Block (see #1891)
Return: AL = status (see #1893)
SeeAlso: INT 5C

Format of Starlan Network Control Block:
Offset	Size	Description	(Table 1891)
 00h	BYTE	ncb_command (see also #1895)
		70h send net Break
 01h	BYTE	ncb_retcode
 02h	BYTE	ncb_lsn
 03h	BYTE	ncb_num
 04h	DWORD	-> ncb_buffer
 08h	WORD	ncb_length
 0Ah 16 BYTEs	ncb_callname
 1Ah 16 BYTEs	ncb_name
 2Ah	BYTE	ncb_rto
 2Bh	BYTE	ncb_sto
 2Ch	DWORD	-> ncb_post	/* int (far *ncb_post)(); */
 30h	BYTE	ncb_lana_num
 31h	BYTE	ncb_cmd_cplt
 32h	DWORD	-> ncb_vname
 36h	BYTE	ncb_vnamelen
 37h  9 BYTEs	ncb_reserve
Note:	fields 00h-31h are the same as for a standard NetBIOS NCB (see #1894)
--------N-5B---------------------------------
INT 5B - Microsoft Network Transport Layer Interface
Note:	used by MS-NET for executing network commands
SeeAlso: INT 5C"NetBIOS"
--------N-5B---------------------------------
INT 5B - used by Alloy NTNX
--------N-5B---------------------------------
INT 5B - ISOLAN Multi Protocol Software
	ES:BX -> Transfer Control Block (see #1892)
Return: AL = status
Note:	this software interface allows multiple protocols/software packages
	  to access a BICC 411x network card

Format of ISOLAN Transfer Control Block:
Offset	Type	Description	(Table 1892)
 00h	BYTE	command code
		B3h Status
		F2h Activate
		F3h Deactivate
		F4h Send Data
 01h	BYTE	command identity
 02h	BYTE	virtual circuit ID
 03h	WORD	buffer length
 05h	DWORD	buffer pointer
 09h	BYTE	expedited data flag
 0Ah	BYTE	cancelable flag
 0Bh 16 BYTEs	local network address
 1Bh 16 BYTEs	remote network address
 2Bh	DWORD	asynchronous notification routine
 30h	DWORD	local network number
 34h	DWORD	remote network number
 38h	BYTE	call timeout
 39h	BYTE	not used
 3Ah  8 BYTEs	reserved
 42h	BYTE	command code extension
 43h	WORD	Blue Book MAC type
--------b-5B---------------------------------
INT 5B - TI Professional PC - KEYBOARD MAPPING HOOK
	no details available
Note:	used to remap the keyboard
SeeAlso: INT 15/AH=4Fh,INT 4A"TI Professional",INT 59"TI Professional"
SeeAlso: INT 5C"TI Professional",INT 5D"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"
--------U-5B5254DL04-------------------------
INT 5B U - SitBack v3.02R - GET ???
	AX = 5254h
	DL = 04h
Return: ES:BX -> ??? in resident portion
Program: SitBack is a background file backup utility by SitBack Technologies,
	  Inc. which initiates backups whenever the system is idle
SeeAlso: AX=8485h/DL=71h,AX=8485h/DL=72h
--------U-5B8485DL70-------------------------
INT 5B U - SitBack v3.02R - INSTALLATION CHECK
	AX = 8485h
	DL = 70h
Return: CX = 8485h if installed
	    DX:AX -> ??? (configuration data?)
Program: SitBack is a background file backup utility by SitBack Technologies,
	  Inc. which initiates backups whenever the system is idle
SeeAlso: AX=5254h/DL=04h,AX=8485h/DL=78h
--------U-5B8485DL71-------------------------
INT 5B U - SitBack v3.02R - SET ??? FLAG AND GET ??? ADDRESS
	AX = 8485h
	DL = 71h
Return: ES:BX -> FAR entry point to ???
Note:	the flag which is modified is located at the address returned by
	   AX=5254h/DL=04h
SeeAlso: AX=8485h/DL=72h
--------U-5B8485DL72-------------------------
INT 5B U - SitBack v3.02R - CLEAR ??? FLAG
	AX = 8485h
	DL = 72h
Note:	the flag which is modified is located at the address returned by
	   AX=5254h/DL=04h
SeeAlso: AX=8485h/DL=71h
--------U-5B8485DL73-------------------------
INT 5B U - SitBack v3.02R - ???
	AX = 8485h
	DL = 73h
	???
Return: ???
--------U-5B8485DL74-------------------------
INT 5B U - SitBack v3.02R - ???
	AX = 8485h
	DL = 74h
	???
Return: ???
--------U-5B8485DL75-------------------------
INT 5B U - SitBack v3.02R - ???
	AX = 8485h
	DL = 75h
	CX = ???
Return: ???
SeeAlso: AX=8485h/DL=76h
--------U-5B8485DL76-------------------------
INT 5B U - SitBack v3.02R - ???
	AX = 8485h
	DL = 76h
	CX = ???
Return: ???
Note:	conditionally calls the code for AX=8485h/DL=75h
SeeAlso: AX=8485h/DL=75h
--------U-5B8485DL77-------------------------
INT 5B U - SitBack v3.02R - SET ??? FLAG
	AX = 8485h
	DL = 77h
--------U-5B8485DL78-------------------------
INT 5B U - SitBack v3.02R - GET RESIDENT DATA SEGMENT
	AX = 8485h
	DL = 78h
Return: CX = 5342h if supported
	    ES = AX = segment of TSR data
SeeAlso: AX=8485h/DL=70h,AX=8485h/DL=79h
--------U-5B8485DL79-------------------------
INT 5B U - SitBack v3.02R - GET DTA
	AX = 8485h
	DL = 79h
Return: CX = 5342h if supported
	    ES:BX -> DTA set by last INT 21/AH=1Ah
Note:	this function is provided by SBOS.EXE rather than SB.EXE
SeeAlso: INT 21/AH=1Ah
--------U-5B8485DL7A-------------------------
INT 5B U - SitBack v3.02R - TOGGLE ???
	AX = 8485h
	DL = 7Ah
Return: CX = 5342h if supported
	    AL = new value of ??? (00h or 01h)
--------H-5C---------------------------------
INT 5C - IRQ12 relocated by DESQview 2.26+
Range:	INT 5C to INT FC, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5B"DESQview",INT 5D"DESQview",INT 74
--------H-5C---------------------------------
INT 5C - IRQ4 relocated by DoubleDOS
SeeAlso: INT 0C
--------N-5C---------------------------------
INT 5C - NetBIOS INTERFACE
	ES:BX -> network control block (NCB) (see #1894)
Return: AL = status (see #1893)
Program: NetBIOS was developed by Sytek, Inc. in 1984 as a high-level
	  programming interface to the IBM PC Network; the first implementation
	  was a ROM BIOS extension on Sytek's PCnet LAN adapter card, but many
	  current networks support NetBIOS as the session layer.
Note:	The Sytek PCnet card uses DMA 3.
SeeAlso: INT 2A/AH=01h,INT 2A/AH=04h,INT 5B

(Table 1893)
Values for NetBIOS status:
 00h	successful
 01h	bad buffer size
 03h	invalid NETBIOS command
 05h	timeout
 06h	receive buffer too small
 07h	No-ACK command failed
 08h	bad session number
 09h	LAN card out of memory
 0Ah	session closed
 0Bh	command has been cancelled
 0Dh	name already exists
 0Eh	local name table full
 0Fh	name still in use, can't delete
 11h	local session table full
 12h	remote PC not listening
 13h	bad NCB_NUM field
 14h	no answer to CALL or no such remote
 15h	name not in local name table
 16h	duplicate name
 17h	bad delete
 18h	abnormal end
 19h	name error, multiple identical names in use
 1Ah	bad packet
 21h	network card busy
 22h	too many commands queued
 23h	bad LAN card number
 24h	command finished while cancelling
 26h	command can't be cancelled
 30h	name defined by another process (OS/2)
 34h	NetBIOS environment not defined, must issue reset (OS/2)
 35h	required operating system resources exhausted (OS/2)
 36h	maximum applications exceeded (OS/2)
 37h	no SAPs available for NetBIOS (OS/2)
 38h	requested resources not available (OS/2)
 40h	Lana System Error
 41h	Lana Remote Hot Carrier
 42h	Lana Local Hot Carrier
 43h	Lana No Carrier Detected
 44h	unusual network condition
 45h-4Dh hardware error
 4Eh	token ring is broken
 4Fh	token ring error
 50h	adapter malfunction
 F7h	error in explicit INITIALIZE
 F8h	error in implicit OPEN
 F9h	TOKREUI internal error
 FAh	hardware adapter testing
 FBh	NetBIOS emulator not found
 FCh	OPEN or OPEN_SAP failure
 FDh	unexpected adapter closure
 FFh	NetBIOS busy (command pending)

Format of NetBIOS Network Control Block:
Offset	Size	Description	(Table 1894)
 00h	BYTE	command code (see #1895)
 01h	BYTE	return code (see #1893)
 02h	BYTE	local session number (LSN)
 03h	BYTE	"ncb_num" datagram table entry from ADD NAME
 04h	DWORD	-> I/O buffer
 08h	WORD	length of data in buffer
 0Ah 16 BYTEs	remote system to call
 1Ah 16 BYTEs	network name of local machine
 2Ah	BYTE	receive timeout in 1/2 seconds
 2Bh	BYTE	send timeout in 1/2 seconds
 2Ch	DWORD	-> FAR post handler	/* int (far *ncb_post)(); */
 30h	BYTE	network adapter number on which to execute command
		00h-03h IBM NetBIOS specs
		F0h-FFh Eicon NABios interface (see also INT 7B"Eicon")
 31h	BYTE	command completion code (see returned status above)
 32h 14 BYTEs	reserved for network card

(Table 1895)
Values for NetBIOS command code field in NCB:
 10h	start session with NCB_NAME name (call)
 11h	listen for call
 12h	end session with NCB_NAME name (hangup)
 14h	send data via NCB_LSN
 15h	receive data from a session
 16h	receive data from any session
 17h	send multiple data buffers
 20h	send unACKed message (datagram)
 21h	receive datagram
 22h	send broadcast datagram
 23h	receive broadcast datagram
 30h	add name to name table
 31h	delete name from name table
 32h	reset adapter card and tables
 33h	get adapter status (see #1896)
 34h	status of all sessions for name (see #1898)
 35h	cancel
 36h	add group name to name table
 48h	send data and receive data (LAN Manager NETBEUI.DOS)
 70h	unlink from IBM remote program (no F0h function)
 71h	send data without ACK
 72h	send multiple buffers without ACK
 72h	UngermannBass Register (conflicts with above function)
 73h	UngermannBass SendNmc
 74h	UngermannBass Callniu
 75h	UngermannBass Calladdr
 76h	UngermannBass Listenaddr
 77h	UngermannBass SendPkt
 78h	find name
 78h	UngermannBass RcvPkt (conflicts with above function)
 79h	token-ring protocol trace
 79h	UngermannBass SendAttn (conflicts with above function)
 7Ah	UngermannBass RcvAttn
 7Bh	UngermannBass Listenniu
 7Ch	UngermannBass RcvRaw
 7Dh	UngermannBass SendNmc2
 7Fh	Beame&Whiteside BWNB installation check (returns with return code and
	  completion code both set to 03h, while invalid functions return only
	  return code field set to 03h)
Note:	OR any of the above except 70h with 80h for non-waiting call

Format of NetBIOS structure "astatus":
Offset	Size	Description	(Table 1896)
 00h  6 BYTEs as_id
 06h	BYTE  as_jumpers
 07h	BYTE  as_post
 08h	BYTE  as_major
 09h	BYTE  as_minor
 0Ah	WORD  as_interval
 0Ch	WORD  as_crcerr
 0Eh	WORD  as_algerr
 10h	WORD  as_colerr
 12h	WORD  as_abterr
 14h	DWORD as_tcount
 18h	DWORD as_rcount
 1Ch	WORD  as_retran
 1Eh	WORD  as_xresrc
 20h  8 BYTEs as_res0
 28h	WORD  as_ncbfree
 2Ah	WORD  as_ncbmax
 2Ch	WORD  as_ncbx
 2Eh  4 BYTEs as_res1
 32h	WORD  as_sespend
 34h	WORD  as_msp
 36h	WORD  as_sesmax
 38h	WORD  as_bufsize
 3Ah	WORD  as_names
 3Ch 16 name structures	 as_name (see #1897)

Format of NetBIOS structure "name":
Offset	Size	Description	(Table 1897)
 00h 16 BYTEs "nm_name" symbolic name
 10h	BYTE  "nm_num" number associated with name
 11h	BYTE  nm_status

Format of NetBIOS structure "sstatus":
Offset	Size	Description	(Table 1898)
 00h	BYTE	number of sessions being reported
 01h	BYTE	number of sessions with this name
 02h	BYTE	number of outstanding receive datagrams
 03h	BYTE	number of outstanding ReceiveAnys
 04h	var	session structures (see #1899)

Format of NetBIOS structure "session":
Offset	Size	Description	(Table 1899)
 00h	BYTE	local session number
 01h	BYTE	state
		01h listen pending
		02h call pending
		03h session established
		04h hangup pending
		05h hangup done
		06h session aborted
 02h 16 BYTEs	local name
 12h 16 BYTEs	remote name
 22h	BYTE	number of outstanding receives
 23h	BYTE	number of outstanding sends/chainsends
--------N-5C---------------------------------
INT 5C - TOPS INTERFACE
	ES:BX -> Network Control Block
Note:	TOPS card uses DMA 1, 3 or none.
--------N-5C---------------------------------
INT 5C - ATALK.SYS - AppleTalk INTERFACE
	DX:BX -> control block (see #1901)
Return: none
Range:	INT 5Ch to INT 70h
Notes:	the signature 'AppleTalk' appears 16 bytes prior to the interrupt
	  handler; this serves as the installation check
Index:	installation check;ATALK.SYS|installation check;AppleTalk interface

(Table 1900)
Values for ATALK.SYS command code:
 01h	"AT_INIT"	    initialize the driver
 02h	"AT_KILL"
 03h	"AT_GETNETINFO" get current network info incl init status
 04h	"AT_GETCLOCKTICKS"
 05h	"AT_STARTTIMER"
 06h	"AT_RESETTIMER"
 07h	"AT_CANCELTIMER"
 10h	"LAP_INSTALL"
 11h	"LAP_REMOVE"
 12h	"LAP_WRITE"
 13h	"LAP_READ"
 14h	"LAP_CANCEL"
 20h	"DDP_OPENSOCKET"
 21h	"DDP_CLOSESOCKET"
 22h	"DDP_WRITE"
 23h	"DDP_READ"
 24h	"DDP_CANCEL"
 30h	"NBP_REGISTER"
 31h	"NBP_REMOVE"
 32h	"NBP_LOOKUP"
 33h	"NBP_CONFIRM"
 34h	"NBP_CANCEL"
 35h	"ZIP_GETZONELIST"
 36h	"ZIP_GETMYZONE"
 37h	"ZIP_TAKEDOWN"
 38h	"ZIP_BRINGUP"
 40h	"ATP_OPENSOCKET"
 41h	"ATP_CLOSESOCKET"
 42h	"ATP_SENDREQUEST"
 43h	"ATP_GETREQUEST"
 44h	"ATP_SENDRESPONSE"
 45h	"ATP_ADDRESPONSE"
 46h	"ATP_CANCELTRANS"
 47h	"ATP_CANCELRESPONSE"
 48h	"ATP_CANCELREQUEST"
 50h	"ASP_GETPARMS"
 51h	"ASP_CLOSESESSION"
 52h	"ASP_CANCEL"
 53h	"ASP_INIT"
 54h	"ASP_KILL"
 55h	"ASP_GETSESSION"
 56h	"ASP_GETREQUEST"
 57h	"ASP_CMDREPLY"
 58h	"ASP_WRTCONTINUE"
 59h	"ASP_WRTREPLY"
 5Ah	"ASP_CLOSEREPLY"
 5Bh	"ASP_NEWSTATUS"
 5Ch	"ASP_ATTENTION"
 5Dh	"ASP_GETSTATUS"
 5Eh	"ASP_OPENSESSION"
 5Fh	"ASP_COMMAND"
 60h	"ASP_WRITE"
 61h	"ASP_GETATTENTION"
 70h	"PAP_OPEN"
 71h	"PAP_CLOSE"
 72h	"PAP_READ"
 73h	"PAP_WRITE"
 74h	"PAP_STATUS"
 75h	"PAP_REGNAME"
 76h	"PAP_REMNAME"
 77h	"PAP_INIT"
 78h	"PAP_NEWSTATUS"
 79h	"PAP_GETNEXTJOB"
 7Ah	"PAP_KILL"
 7Bh	"PAP_CANCEL"

Format of AppleTalk control block:
Offset	Size	Description	(Table 1901)
 00h	WORD	command code (see #1900)
		OR with the following flags
		8000h start command then return
		4000h wait for interrupt service to complete
 02h	WORD	returned status
		0000h success (already initialized if func 01h)
 04h	DWORD	pointer to completion function
 08h	WORD	network number
 0Ah	BYTE	node ID
---if general func (01h,03h), control block continues:
 0Bh	BYTE	"inf_abridge"
 0Ch	WORD	"inf_config"
 0Eh	DWORD	pointer to buffer
 12h	WORD	buffer size
---if DDP function (20h-24h), control block continues:
 0Bh	BYTE	"ddp_addr_socket"
 0Ch	BYTE	"ddp_socket"
 0Dh	BYTE	"ddp_type"
 0Eh	DWORD	pointer to buffer
 12h	WORD	buffer size
 14h	BYTE	"ddp_chksum"
---if Name Binding Protocol (30h-34h), control block continues:
 0Bh	BYTE	"nbp_addr_socket"
 0Ch	WORD	"nbp_toget"
 0Eh	DWORD	pointer to buffer (see #1902)
 12h	WORD	buffer size
 14h	BYTE	"nbp_interval"
 15h	BYTE	"nbp_retry"
 16h	DWORD	"nbp_entptr"
---if AppleTalk Transaction Protocol (42h), control block continues:
 0Bh	BYTE	"atp_addr_socket"
 0Ch	WORD	"atp_socket"
 0Eh	DWORD	pointer to buffer
 12h	WORD	buffer size
 14h	BYTE	"atp_interval"
 15h	BYTE	"atp_retry"
 16h	BYTE	ATP flags
		bit 5: exactly one transaction
 17h	BYTE	"atp_seqbit"
 18h	BYTE	transaction ID
 19h  4 BYTEs	ATP user bytes
 1Dh	BYTE	number of BDS buffers
 1Eh	BYTE	number of BDS responses
 1Fh	DWORD	pointer to BDS buffers (see #1903)

Format of Name Binding Protocol Name-to-Address binding entries for NBP_LOOKUP:
Offset	Size	Description	(Table 1902)
 00h	WORD	"tup_address_network"
 02h	BYTE	"tup_address_notid"
 03h	BYTE	"tup_address_socket"
 04h	BYTE	"tup_enum"
 05h 99 BYTEs	name

Format of BDS entries:
Offset	Size	Description	(Table 1903)
 00h	DWORD	pointer to buffer
 04h	WORD	size of buffer
 06h	WORD	BDS data size
 08h  4 BYTEs	"bds_userbytes"
--------N-5C---------------------------------
INT 5C - IBM 802.2 INTERFACE (LLC)
	ES:BX -> CCB (see #1904)
Return: none

Format of IBM 802.2 CCB:
Offset	Size	Description	(Table 1904)
 00h	BYTE	adapter
 01h	BYTE	command code
 02h	BYTE	return code
 03h	BYTE	work
 04h	DWORD	pointer to ???
 08h	DWORD	pointer to completion function???
 0Ch	DWORD	pointer to parameters???
--------b-5C---------------------------------
INT 5C - TI Professional PC - KEYBOARD PAUSE KEY VECTOR
Desc:	toggle a pause flag which is checked by the CRT Device Service Routine
	  (see INT 49"TI Professional") and causes it to temporarily halt the
	  machine on the next video-related function (until a key is pressed)
SeeAlso: INT 09"IRQ1",INT 4A"TI Professional",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5D"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"
--------N-5C---------------------------------
INT 5C - $25 LAN - INSTALLATION CHECK
Notes:	current versions only check whether the vector is 0000h:0000h or not
	future versions are supposed to have the signature "NET" in the three
	  bytes preceding the INT 5C handler
--------N-5C04-------------------------------
INT 5C - $25 LAN - CHECK IF CONNECTION ALIVE
	AH = 04h
	AL = COM port (0 = default)
	CX = wait count in character times (should be at least 100)
Return: ZF set if link alive
--------H-5D---------------------------------
INT 5D - IRQ13 relocated by DESQview 2.26+
Range:	INT 5D to INT FD, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5C"DESQview",INT 5E"DESQview",INT 75
--------H-5D---------------------------------
INT 5D - IRQ5 relocated by DoubleDOS
SeeAlso: INT 0D,INT 5C"DoubleDOS"
--------b-5D---------------------------------
INT 5D - TI Professional PC - KEYBOARD BREAK KEY VECTOR
	no details available
SeeAlso: INT 09"IRQ1",INT 4A"TI Professional",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"
--------H-5E---------------------------------
INT 5E - IRQ14 relocated by DESQview 2.26+
Range:	INT 5E to INT FE, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5D"DESQview",INT 5F"DESQview",INT 76
--------H-5E---------------------------------
INT 5E - IRQ6 relocated by DoubleDOS
SeeAlso: INT 0E,INT 5D"DoubleDOS"
--------b-5E---------------------------------
INT 5E - TI Professional PC - KEYBOARD PRINT-SCREEN VECTOR
Desc:	dump the screen to the printer
Notes:	hooked by TI MS-DOS, which provides a PRTSCRN character device which
	  can invoke screen prints when a decimal digit (indicating the type
	  of screen dump) is written to it
	the TI MS-DOS print-screen routine allows selective dumps of text
	  only, graphics only, or text and graphics superimposed, in either
	  normal or reverse, by pressing the appropriate keystroke combination:
	  Shift-Print, Ctrl-Print, Alt-Print, Shift-Alt-Print, Ctrl-Alt-Print,
	  or Shift-Ctrl-Print.
	the BIOS default routine for this vector is an IRET
SeeAlso: INT 05,INT 4A"TI Professional",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5D"TI Professional",INT 5F"TI Professional"
--------H-5F---------------------------------
INT 5F - IRQ15 relocated by DESQview 2.26+
Range:	INT 5F to INT FF, selected automatically
Note:	this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5E"DESQview",INT 77
--------H-5F---------------------------------
INT 5F - IRQ7 relocated by DoubleDOS
SeeAlso: INT 0F,INT 5E"DoubleDOS"
--------b-5F---------------------------------
INT 5F C - TI Professional PC - KEYBOARD QUEUEING VECTOR
Desc:	hook for multitaskers to be informed when a keypress is placed in the
	  keyboard buffer
SeeAlso: INT 09,INT 4A"TI Professional",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5D"TI Professional",INT 5E"TI Professional"
--------b-5F00-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET VIDEO MODE
	AH = 00h
	AL = video mode
	    03h text,CGA color (100LX/200LX)
	    06h 640x200 CGA graphics (100LX/200LX)
	    07h text, system manager compliant
	    20h 240x128 mono graphics, system manager compliant
	    87h text, not system manager compliant
	    A0h 240x128 mono graphics, not system manager compliant
Notes:	the defaults after setting the mode to graphics are (0,0) logical
	  origin, full-screen clip region, (0,0) pen location, pen color 1,
	  pixel replacement FORCE, line type and fill mask all bits set
	modes 03h and 06h can also be set with the standard INT 10/AH=00h
SeeAlso: INT 0F"HP 95LX",INT 10/AH=00h,INT 15/AX=4DD4h
--------b-5F01-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET FILL MASK
	AH = 01h
	ES:DI -> 8-byte fill mask
Note:	the fill mask represents an 8x8 pixel box and is repeated as necessary
	  when drawing filled rectangles; it is always aligned with the byte
	  boundaries of video memory, regardless of the actual boundaries of
	  the rectangle
SeeAlso: AH=02h
--------b-5F02-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - GET CURRENT GRAPHICS INFO
	AH = 02h
	ES:DI -> graphics info record (see #1905)
Return: DX:AX -> filled graphics info record (for return to high-level langs)

Format of HP 95LX graphics info record:
Offset	Size	Description	(Table 1905)
 00h	BYTE	current video mode
 01h	BYTE	default video mode
 02h	WORD	display width in pixels
 04h	WORD	display height in pixels
 06h	WORD	current pen column
 08h	WORD	current pen row
 0Ah	WORD	current line type
 0Ch	WORD	current replacement rule
 0Eh	WORD	current pen color
 10h	WORD	current leftmost column of clip region
 12h	WORD	current rightmost column of clip region
 14h	WORD	current topmost row of clip region
 16h	WORD	current bottommost row of clip region
 18h	WORD	current column of logical origin
 1Ah	WORD	current row of logical origin
 1Ch  8 BYTEs	current fill mask
--------b-5F03-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET LOGICAL ORIGIN
	AH = 03h
	CX = column
	DX = row
SeeAlso: AH=04h
--------b-5F04-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET CLIP REGION
	AH = 04h
	CX = left-most column
	DX = top-most row
	SI = right-most column
	DI = bottom-most row
SeeAlso: AH=03h
--------b-5F05-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - DRAW RECTANGLE
	AH = 05h
	AL = fill type
	    00h outline, using current line type and color
	    01h solid, using current color
	    02h pattern, using current fill mask and color
	DX,CX = row,column of other corner of rectangle
Note:	the rectangle is drawn starting at the current pen position
SeeAlso: AH=01h,AH=06h,AH=07h
--------b-5F06-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - DRAW LINE
	AH = 06h
	DX,CX = row,column of end point
Note:	the line is drawn starting at the current pen position
SeeAlso: AH=05h,AH=07h
--------b-5F07-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - PLOT POINT
	AH = 07h
	DX,CX = row,column of point
Note:	also sets pen position to the specified point
SeeAlso: AH=06h,AH=08h,AH=0Ch
--------b-5F08-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - MOVE PEN
	AH = 08h
	DX,CX = row,column of new pen position
SeeAlso: AH=07h,AH=09h
--------b-5F09-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET PEN COLOR
	AH = 09h
	AL = new color (00h = white, 01h = black)
SeeAlso: AH=08h,AH=0Ah,AH=0Bh
--------b-5F0A-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET REPLACEMENT RULE
	AH = 0Ah
	AL = new replacement rule
	    00h force
	    01h AND
	    02h OR
	    03h XOR
	    ---100LX/200LX---
	    04h InvForce
	    05h InvAND
	    06h	InvOR
	    07h InvXOR
	    08h Txt
SeeAlso: AH=01h,AH=09h,AH=0Bh
--------b-5F0B-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET LINE TYPE
	AH = 0Bh
	CX = new line type
Note:	the line type specifies 16 bits which are repeated over and over while
	  drawing the pixels of a line
SeeAlso: AH=09h,AH=0Ah
--------b-5F0C-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - GET PIXEL
	AH = 0Ch
	DX,CX = row,column of pixel to read
Return: AX = pixel color
SeeAlso: AH=07h
--------b-5F0D-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - GET IMAGE
	AH = 0Dh
	DX,CX = row,column of first corner
	BP,SI = row,column of second corner
	ES:DI -> image buffer (see #1906)
Note:	the specified corners are included in the saved image
SeeAlso: AH=0Eh

Format of HP 95LX image buffer:
Offset	Size	Description	(Table 1906)
 00h	WORD	number of planes (always 01h on HP 95LX)
 02h	WORD	number of bits/pixel (always 01h on HP 95LX)
 04h	WORD	image width in pixels
 06h	WORD	image height in pixels
 08h  N BYTEs	image data
		requires (WIDTH+7)/8 * HEIGHT bytes
--------b-5F0E-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - PUT IMAGE
	AH = 0Eh
	AL = replacement rule (see #1907)
	DX,CX = row,column of top left corner
	ES:DI -> image buffer (see #1906)
Note:	if the specified image does not fit completely on the screen, this call
	  does nothing
SeeAlso: AH=0Dh

Bitfields for replacement rule:
Bit(s)	Description	(Table 1907)
 2	invert image before applying rule
 1-0	function (00 force, 01 AND, 10 OR, 11 XOR)
--------b-5F0F-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - WRITE TEXT
	AH = 0Fh
	AL = rotate flag (if nonzero, rotate 90 degrees counter-clockwise)
	DX,CX = row,column of first character's top left corner
	ES:DI -> ASCIZ text
--------b-5F10-------------------------------
INT 5F - HP 100LX/200LX GRAPHICS PRIMITIVES - GET FONT POINTER
	AH = 10h
	CX = font size of desired font
	    0808h  8x8	small  (80x25 text)
	    0A0Bh 11x10 medium (64x18 text)
	    100Ch 12x16 large  (40x16 text)
Return: DX:AX -> ptr to font or 0000h:fontID# if built-in font
SeeAlso: AH=11h
--------b-5F11-------------------------------
INT 5F - HP 100LX/200LX GRAPHICS PRIMITIVES - SET CURRENT FONT
	AH = 11h
	ES:DI -> ptr to font or 0000h:fontID# for built-in font
Note:	this function should be called immediately after AH=10h with the
	  pointer supplied by that call
SeeAlso: AH=10h
--------*-60---------------------------------
INT 60 - reserved for user interrupt
--------v-60---------------------------------
INT 60 - VIRUS - "Zero Bug" - INSTALLATION CHECK
Desc:	The "Zero Bug" virus hooks this vector.	 It considers itself installed
	  if offset 103h of the handler's segment contains the bytes "ZE"
SeeAlso: INT 32,INT 44"VIRUS",INT 61"SEMTEX"
--------d-60---------------------------------
INT 60 - Adaptec and OMTI controllers - DRIVE 0 DATA
SeeAlso: INT 41,INT 61"Adaptec",INT 62"Adaptec",INT 63"Adaptec",INT 64"Adaptec"
SeeAlso: INT C0"AMI"
Notes:	this vector stores the first four bytes of the parameter table for
	  hard disk 0
	these vectors are used by the following Adaptec controllers:
	    ACB 2370 A/B/C, ACB 2372 A/B/C, ACB 2333 A/B, 2322B-8, 2322B-16
	these vectors are NOT used by the following Adaptec controllers:
	    ACB 2310, ACB 2312, ACB 2320D, ACB 2322D
--------b-60---------------------------------
INT 60 - TI Professional PC - SYSTEM ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:	the low word of this vector contains the segment of the RAM data area
	  to be used by the system ROM at F400h:A000h, and the high word
	  contains the length of the data area (see #1908)
SeeAlso: INT 61"TI Professional PC",INT 66"TI Professional PC"

Format of TI Professional System ROM data area:
Offset	Size	Description	(Table 1908)
 00h	BYTE	port 00h shadow
 01h	BYTE	port 03h shadow
 02h	BYTE	port 04h shadow
 03h	WORD	system configuration word (see #1909)
 05h	BYTE	25ms count
 06h	WORD	offset of timing event 1 (0008h)
 08h	WORD	(event 1) offset of timing event 2 (0010h)
 0Ah	BYTE	(event 1) unused (FFh)
 0Bh	BYTE	(event 1) active flag (00h = off, 80h = on)
 0Ch	WORD	(event 1) count-down until end of event	
 0Eh	WORD	(event 1) event routine (in segment F400h) to call at timeout
 10h	WORD	(event 2) offset of timing event 3 (0018h)
 12h	BYTE	(event 2) unused (FFh)
 13h	BYTE	(event 2) active flag (00h = off, 80h = on)
 14h	WORD	(event 2) count-down until end of event	
 16h	WORD	(event 2) event routine (in segment F400h) to call at timeout
 18h	...
Note:	timing event 1 is the disk I/O timeout, and event 2 is the floppy disk
	  motor timeout

Bitfields for TI Professional System Configuration Word:
Bit(s)	Description	(Table 1909)
 0	drive A: installed
 1	drive B: installed
 2	drive C: installed
 3	drive D: installed
 4	drive A: is 80-track
 5	drive A: is double-sided
 6	60-Hz (USA,etc.) system instead of 50-Hz (Europe)
 7	hard disk installed
 8	serial port 1 installed
 9	serial port 2 installed
 10	serial port 3 installed
 11	serial port 4 installed
 14-12	installed graphics planes
	000 none
	001 plane A
	111 planes A, B, and C
 15	clock installed
SeeAlso: #1908
--------b-60---------------------------------
INT 60 - Atari Portfolio - USER INTERFACE FUNCTIONS
Desc:	supplies a number of subfunctions which perform such functions as
	  drawing boxes and menus, and provide input line editing
SeeAlso: INT 61"Atari"
--------V-60---------------------------------
INT 60 - Nabbit v2.0 - (NOT A VECTOR!) - INSTALLATION CHECK
Program: Nabbit is a shareware resident screen data grabber by RSE Inc.
Range:	INT 60 to INT 66, selected by searching for first free vector
Note:	the Nabbit installation check consists of testing whether the
	  interrupt vector points at the ASCIZ signature string "iG"
	  (69h 47h 00h)
--------V-60---------------------------------
INT 60 U - Buffit v3.0 - (NOT A VECTOR!) - INSTALLATION CHECK
Program: Buffit is a shareware scrollback utility by D.T. Hamilton
Range:	INT 60 to INT 6F, selected by searching for first free vector
Notes:	the Buffit installation check consists of testing whether the
	  interrupt vector points at the ASCII signature "Buffit  "
	there is a private entry point (see #1910) immediately following the
	  signature string, i.e. eight bytes beyond the address pointed at
	  by the interrupt vector

(Table 1910)
Call Buffit private entry point with:
	AH = function
	    00h get information and hotkey state
	    01h get information and toggle hotkey state
Return: AH = new hotkey state (00h enabled, 01h disabled)
	AL = hotkey scan code
	BH = hotkey shift states
	BL = ??? (01h)
	CX = segment of resident code
	DH = interrupt number used for signature pointer
	DL = ??? (00h)
	SI = INT 09 handler offset
	DI = INT 21 handler offset
Index:	hotkeys;Buffit
--------r-60---------------------------------
INT 60 - PC-IPC API
	STACK:	DWORD	pointer to parameter block (see #1911)
Return: STACK:	unchanged
Program: PC-IPC is a shareware TSR by Donnelly Software Engineering which
	  allows communication between independent programs
Range:	INT 00 to INT FF, selected by commandline switch

Format of PC-IPC parameter block:
Offset	Size	Description	(Table 1911)
 00h	WORD	caller's ID
 02h	WORD	to ID
 04h	WORD	command code (see #1912)
 06h	WORD	returned status (see #1913)
 08h	WORD	returned error code (see #1914)
 0Ah	WORD	size of data
 0Ch	DWORD	pointer to data buffer

(Table 1912)
Values for PC-IPC command code:
 01h "IPC_CMND_INQUIRE"	 inquire current status
	set status field, writes WORD to data buffer containing free
	  message space in bytes, and sets the "size" field to the
	  number of messages waiting
 02h "IPC_CMND_ENABLE"	reenable PC-IPC
	ignored unless called with the same ID that disabled PC-IPC
 03h "IPC_CMND_DISABLE" disable PC-IPC
 04h "IPC_CMND_INSTALL" reset PC-IPC
 06h "IPC_CMND_RDATA"	read data
	returns first message in data buffer, sets "size" to message length
	  and "to ID" field to sender's ID
	if no messages available, bit 4 of status is cleared and "size" is
	  set to zero
 07h "IPC_CMND_SDATA"	send data
 08h "IPC_CMND_REQID"	require user ID
	create a new recognized ID and return in "caller's ID" field
 09h "IPC_CMND_DELID"	cancel user ID
	delete caller's ID from pool of recognized IDs
 0Ah "IPC_CMND_RDATAW"	read data, wait if no messages available
 0Bh "IPC_CMND_VERS"	get PC-IPC version
	string representing version returned in data buffer, "size" field
	  set to length of string

Bitfields for returned status:
Bit(s)	Description	(Table 1913)
 0	unused
 1	IPC enabled
 2	IPC installed
 3	error
 4	message(s) available

(Table 1914)
Values for PC-IPC error code:
 00h	no error
 01h	invalid command or parameter
 02h	only process 0 can install/reset IPC
 03h	process can not install/reset IPC
 04h	IPC is not enabled
 05h	process can not disable IPC
 06h	invalid destination process ID
 07h	invalid sending process ID
 08h	invalid data destination
 09h	no more process IDs available
 0Ah	can not relinquish that process ID
 0Bh	message space is full
 0Ch	IPC is not installed
--------R-60---------------------------------
INT 60 - Tangram Arbiter - API
Desc:	Arbiter makes a PC disk look like a slow disk over an SNA link to an
	  IBM mainframe
Range:	INT 60h to INT 66h, selected by configuration parameter
Notes:	identified by string "@ARB_API" immediately following a short jump at
	  the interrupt handler address
--------N-60---------------------------------
INT 60 - Excelan LAN Workplace for DOS 3.5 - API
	ES:BX -> request packet (see #1915)
Return: request packet updated
Notes:	this interrupt is also supported by Beame&Whiteside's BWLWP35 shim,
	  which was used in creating this description
	the installation check consists of testing for the WORD 4142h ('AB')
	  immediately preceding the interrupt handler
BUG:	because BWLWP35 range-checks only the low byte of the function number,
	  and has a fencepost error even in that test, functions 000Bh and
	  XX01h-XX0Bh (XX nonzero) branch to random locations
SeeAlso: INT 2F/AX=7A40h

Format of Excelan request packet:
Offset	Size	Description	(Table 1915)
 00h 12 BYTEs	???
 0Ch	WORD	(ret) error code (see #1916)
 0Eh	DWORD	-> FAR function for ???
 12h	WORD	function number
		0001h ???
		0002h NOP
		0003h NOP
		0004h NOP
		0005h ???
		0006h get ??? record
		0007h NOP
		0008h reset ???
		0009h NOP
		000Ah set ???
	???
---function 01h---
 20h	BYTE	(call) subfunction (32h-3Bh)
		3Bh non-blocking I/O request (will be tested every clock tick)
 21h	BYTE	(ret) error code
		00h successful
		09h invalid connection number
		2Ah bad connection type
		45h ???
---function 01h, subfunction 32h---
 3Ah	WORD	(call) connection type (01h stream, 02h datagram)
---function 01h, subfunction 34h---
 26h	WORD	(call) ???
 28h	WORD	(call) ???
 2Ah	WORD	(call) ???
---function 01h, subfunction 35h---
 1Ah	WORD	(call) connection number???
 26h	WORD	(ret) ???
---function 01h, subfunction 36h---
 1Ah	WORD	(call) connection number???
 38h	WORD	???
---function 01h, subfunction 37h---
 24h	WORD	(ret) ???
 26h	WORD	(ret) ???
---function 01h, subfunction 38h---
 1Ah	WORD	(call) connection number???
---function 01h, subfunction 3Ah---
 22h	WORD	(call) ???
		667Eh ???
		667Fh ???
 24h	BYTE	(call 667Eh) ???
 24h	WORD	(return 667Fh) ???
---function 01h, subfunction 3Bh---
 0Eh	DWORD	(call) -> function to invoke for I/O or 0000h:0000h
		function called with AX = 0000h
				     STACK: DWORD -> request packet
					    WORD 0000h
			should return STACK unchanged
 1Ah	WORD	(call) connection number???
 21h	BYTE	(ret) set to 01h when I/O becomes possible
 22h	BYTE	(call) direction (00h write, 01h read)
 34h	DWORD	(ret) -> next pending request packet
---function 05h---
 1Eh	WORD	(call) ???
 20h	WORD	(call) ???
 34h	DWORD	(call) -> ???
---function 06h---
 16h	DWORD	(call) -> buffer for ??? record (see #1917)
 1Ah	WORD	(call) number of bytes to copy
 22h	WORD	(ret) number of bytes transferred
---function 08h---
 14h	WORD	(ret) ??? (0001h)
---function 0Ah---
 16h	DWORD	(call) -> WORD ???
 1Ch	WORD	(call) must be 000Ah for BWLWP35

(Table 1916)
Values for Excelan error code:
 0000h	successful
 002Dh	invalid function
 0050h	???

Format of ??? record:
Offset	Size	Description	(Table 1917)
 00h	WORD	offset of ???
 02h  4 BYTEs	???
 06h	DWORD	IP address (big-endian)
 0Ah  6 BYTEs	physical address (big-endian)
	???
--------N-60---------------------------------
INT 60 - TCPDRV 2.01 - TCP/IP Application Binary Interface (ABI)
Note:	The handler for the interrupt will start with a 2-byte NEAR jump
	  instruction, followed by the ASCIZ signature string "TCP DRVR".
	To find the interrupt being used by the driver, an application
	  should scan through interrupt vectors 60h to 7Fh until it finds
	  one with the "TCP DRVR" string.
	This specification is being proposed by Peter R. Tattam from the
	  University of Tasmania.
Index:	installation check;TCPDRV
--------G-60---------------------------------
INT 60 U - INTRSPY/CMDSPY v1.0 only - API
Program: INTRSPY is a script-driven debugger included with the book
	  _Undocumented_DOS_.
Notes:	INTRSPY will hook the first available interrupt in the range 60h-67h.
	The installation check is to
	  a) determine that the handler is an IRET instruction
	  b) the signature 0Dh "INTRSPY vN.NN" immediately precedes the handler
	If INTRSPY is installed, the DWORD immediately after the IRET stores
	  its entry point (see #1918)
	INTRSPY v2.0 (included with the second edition of the book) no longer
	  supports this API
Index:	installation check;INTRSPY

(Table 1918)
Call INTRSPY v1.0 entry point with:
	AH = function
	    00h ???
	    01h set current directory (for use in reporting)
		ES:DI -> counted string containing directory name (max 79 char)
	    02h set name of script file
		ES:DI -> counted string containing file name (max 79 chars)
	    03h set script arguments
		ES:DI -> counted string containing arguments (max 79 chars)
		 04h get directory set with function 01h
		ES:DI -> 80-byte buffer for directory name
	    05h get name of script file
		ES:DI -> 80-byte buffer for script filename
	    06h get script arguments
		ES:DI -> 80-byte buffer for script arguments
	    07h get ???
		CL = 00h-15h specifies what to get
		ES:DI -> WORD to be set with desired value on return
	    08h get ???
		ES:DI -> WORD to be set with returned value
	    09h get ???
		ES:DI -> WORD to be set with returned value
	    0Bh store code for interrupt handler???
		ES:DI -> data
		CX = number of bytes
	    0Ch ???
		ES:DI -> ???
	    0Dh get ???
		ES:DI -> BYTE to be set with returned value
	    0Eh set ??? flag
	    0Fh clear ??? flag
	    10h ???
		Return: AL = 04h or 05h if failed
	    11h ???
		Return: AL = 05h if failed
	    12h get ???
		ES:DI -> buffer
		Return: CX = number of bytes returned in buffer
	    13h ???
Return: AH = 00h
	AL = status
	    00h successful
	    01h invalid function
	    02h ???
	    03h ???
	    04h ???
	    05h ???
--------u-60---------------------------------
INT 60 U - PC/370 v4.2 - ???
	???
Return: ???
Program: PC/370 is an IBM 370 emulator by Donald S. Higgins
Range:	INT 00 to INT FF, selected by patching the executable
Note:	the documentation includes instructions for patching the system for
	  another interrupt
SeeAlso: INT 2F/AX=7F24h,INT DC"PC/370"
--------r-60---------------------------------
INT 60 - JPI TopSPEED Modula-2 v1 - PROCEDURE ENTRY TRAP
SeeAlso: INT 61"JPI"
--------N-60---------------------------------
INT 60 - FTP Packet Driver - PC/TCP Packet Driver Specification
Range:	INT 20 to INT FF
Notes:	The handler for the interrupt will start with a 3-byte jump
	  instruction, followed by the ASCIZ string "PKT DRVR" (the
	  terminating NUL is significant).
	To find the interrupt being used by the driver, an application should
	  scan through interrupt vectors 20h to FFh (60h through 80h for
	  v1.09- of the specification) until it finds one with the "PKT DRVR"
	  string.
	AH values of 80h to FFh have been reserved for user-defined additions.
--------I-60---------------------------------
INT 60 u - 3270-PC CONTROL PROGRAM - ???
--------b-60----DI0100-----------------------
INT 60 u - HP 95LX System Manager - WAIT FOR EVENT
	DI = 0100h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to event record (see #1920)
Return: event record filled
	STACK unchanged
Note:	this call will timeout after about 500ms
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0101h,INT 61"HP 95LX",INT 62"HP 95LX"

(Table 1919)
Values for HP 95LX event type:
 00h	no events
 01h	keystroke available
 02h	Ctrl-Break
 03h	reactivation (always follows deactivation event)
 04h	about to deactivate (sleep)
	next get-event call will not return until reactivated
 05h	forced application termination
 06h	1-2-3 bridge service request (only given to 1-2-3)
 07h	request to grow
 08h	request to shrink
 09h	application's alarm expired
 0Ah	daily chance to set an alarm
 0Bh	system date or time has been changed

Format of HP 95LX event record:
Offset	Size	Description	(Table 1920)
 00h	WORD	event type (see #1919)
 02h	WORD	ASCII code page 850 translation of keystroke
		or grow/shrink amount in paragraphs or 0000h if error
		or alarm expiration data
 04h	BYTE	scan code from BIOS
 05h	BYTE	shift key states at time keystroke is retrieved
 06h	WORD	LICS translation of keystroke
 08h	BYTE	function key number (1-2-3 only)
 09h	DWORD	pointer to 1-2-3 bridge record (see #1922)
		or pointer to time change structure (see #1921)
Note:	if the System Manager is awaiting the conclusion of a bridge service
	  or grow/shrink call and the event type field is set to FFFFh on
	  entry, the SysMgr will resume

Format of HP 95LX time change structure:
Offset	Size	Description	(Table 1921)
 00h	WORD	old year
 02h	BYTE	old month
 03h	BYTE	old date
 04h	BYTE	old day
 05h	BYTE	old hour
 06h	BYTE	old minute
 07h	BYTE	old second
 08h	BYTE	old hundredth of a second
 09h  9 BYTEs	new time in same format as old time
--------b-60----DI0101-----------------------
INT 60 u - HP 95LX System Manager - CHECK FOR EVENT
	DI = 0101h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD pointer to event record (INT 60/DI=0100h)
Return: event record filled
	STACK unchanged
Note:	this call returns immediately if no event is available
SeeAlso: INT 60/DI=0100h
--------b-60----DI0102-----------------------
INT 60 u - HP 95LX System Manager - "SH_STATUS"
	DI = 0102h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI0104-----------------------
INT 60 u - HP 95LX System Manager - LOTUS 1-2-3 BRIDGE SERVICES
	DI = 0104h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD pointer to bridge record (see #1922)
Return: ???
	STACK unchanged

Format of HP 95LX bridge record:
Offset	Size	Description	(Table 1922)
 00h	WORD	function code (see #1923)
 02h	WORD	return code from 1-2-3
 04h 16 BYTEs	ASCII range name
 14h	WORD	start column of range
 16h	WORD	start row of range
 18h	WORD	end column of range
 1Ah	WORD	end row of range
 1Ch	WORD	order in which data is placed in buffer
 1Eh	WORD	buffer size
 20h	WORD	offset within bridge record's segment of buffer for cell data

(Table 1923)
Values for HP 95LX function code:
 00h	test
 01h	get range
 02h	"GETRANGE_ADDR"
 03h	"SETRANGE_ADDR"
 04h	"GETRANGE_DATA"
 05h	"SETRANGE_DATA"
 06h	recalculate
 07h	get cursor
 08h	set cursor
 09h	redisplay
 0Ah	cell type
 0Bh	"CALCTYPE"
--------b-60----DI0105-----------------------
INT 60 u - HP 95LX System Manager - FLUSH KEYBOARD BUFFER
	DI = 0105h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI0106-----------------------
INT 60 u - HP 95LX System Manager - YIELD CPU
	DI = 0106h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=1000h,INT 2F/AX=1680h
--------b-60----DI0107-----------------------
INT 60 u - HP 95LX System Manager - "NO_FINI" - REFUSE TERMINATION REQUEST
	DI = 0107h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0200-----------------------
INT 60 u - HP 95LX System Manager - SETUP MENU
	DI = 0200h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to menu data (see #1924)
		DWORD	pointer to ???
		WORD	number of items on menu???
		WORD	???
		DWORD	pointer to ???
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0201h,INT 60/DI=0203h,INT 60/DI=0205h

Format of HP 95LX menu data:
Offset	Size	Description	(Table 1924)
 00h 80 BYTEs	first line of menu text
 50h 80 BYTEs	second line of menu text
 A0h 80 BYTEs	third line of menu text
 F0h	WORD	number of keywords
 F2h	WORD	index of currently highlighted keyword or FFFFh
 F4h	WORD	single prompt on top line if nonzero
 F6h 20 BYTEs	which line each of 20 keywords is located on
10Ah 20 BYTEs	offset of each of 20 keywords within its line
11Eh 20 BYTEs	length of each of 20 keywords
132h 20 BYTEs	first letter of each of 20 keywords
146h 20 WORDs	offsets of long prompts for each of 20 keywords
--------b-60----DI0201-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY OR REDISPLAY MENU
	DI = 0201h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to menu data (see #1924)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0202h,INT 60/DI=0206h
--------b-60----DI0202-----------------------
INT 60 u - HP 95LX System Manager - "MENU_ON" - ENABLE PROCESSING OF MENU
	DI = 0202h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to menu data (see #1924)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0201h,INT 60/DI=0203h
--------b-60----DI0203-----------------------
INT 60 u - HP 95LX System Manager - REMOVE MENU
	DI = 0203h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to menu data (see #1924)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0201h,INT 60/DI=0202h,INT 60/DI=0204h,INT 60/DI=0208h
--------b-60----DI0204-----------------------
INT 60 u - HP 95LX System Manager - LET SYSTEM MANAGER HANDLE MENU KEYSTROKE
	DI = 0204h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to menu data (see #1924)
		WORD	keystroke
		DWORD	pointer to WORD to receive selection number
Return: buffer for selection number filled with index of selected menu item or
	  FFFFh if no final selection yet
	STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0202h,INT 60/DI=0207h
--------b-60----DI0205-----------------------
INT 60 u - HP 95LX System Manager - INITIALIZE FILE SELECTION MENU
	DI = 0205h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file menu structure (see #1925)
		DWORD	pointer to edit record (see #1928 at INT 60/DI=0400h)
		DWORD	pointer to wildcard filespec for initial file list
		WORD	row???
		WORD	column???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0206h,INT 60/DI=0208h

Format of HP 95LX file menu structure:
Offset	Size	Description	(Table 1925)
 00h	DWORD	pointer to ASCIZ base directory name
 04h	DWORD	pointer to ASCIZ file pattern (wildcard filespec)
 08h	DWORD	pointer to file list workspace, at least 1024 bytes (see #1926)
 0Ch	WORD	size of file list workspace in bytes
 0Eh	WORD	starting row (-3 is topmost, 0 is first non-"reserved" line)
 10h	WORD	starting column
 12h	WORD	number of lines
 14h	WORD	number of columns
 16h	WORD	number of files displayed on each line
---the remaining fields are initialized by the System Manager---
 18h	WORD	0000h if first edit character, else multiline
 1Ah	WORD	number of files in file list
 1Ch	WORD	max files workspace has room for
 1Eh	WORD	file at top of list
 20h	WORD	index of file to highlight
 22h	WORD	index of file to unhighlight
 24h	WORD	current focus (01h FMENU, 02h EDIT)

Format of HP 95LX file list workspace entry:
Offset	Size	Description	(Table 1926)
 00h	BYTE	file attributes
 01h	WORD	file time (see #0876 at INT 21/AX=5700h)
 03h	WORD	file date (see #0877 at INT 21/AX=5700h)
 05h	DWORD	file size
 09h 13 BYTEs	ASCIZ filename
--------b-60----DI0206-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY/REDISPLAY FILE SELECTION MENU
	DI = 0206h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file menu structure (see #1925)
		DWORD	pointer to edit record (see #1928 at INT 60/DI=0400h)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0205h
--------b-60----DI0207-----------------------
INT 60 u - HP 95LX System Manager - LET SYSMGR PROCESS FILE SEL MENU KEYSTROKE
	DI = 0207h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file menu structure (see #1925)
		DWORD	pointer to edit record (see #1928 at INT 60/DI=0400h)
		WORD	keystroke
Return: AX = status (see #1927)
	STACK unchanged
SeeAlso: INT 60/DI=0205h,INT 60/DI=0208h

(Table 1927)
Values for HP 95LX System Manager status:
 0000h	keystroke processed, call INT 60/DI=0206h to refresh menu
 0001h	redisplay application area before refreshing menu
 0002h	user confirmed selection, filename is in edit record's buffer
 0003h	user aborted menu
 FFFBh	bad filename
 FFFCh	bad directory
 FFFDh	bad drive
 FFFEh	unknown keystroke
 FFFFh	keystroke known but invalid in current context
--------b-60----DI0208-----------------------
INT 60 u - HP 95LX System Manager - REMOVE FILE SELECTION MENU
	DI = 0208h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file menu structure (see #1925)
		DWORD	pointer to edit record (see #1928 at INT 60/DI=0400h)
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0205h,INT 60/DI=0206h
--------b-60----DI0300-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY STRING
	DI = 0300h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	starting row (-3 is topmost, 0 is first user line)
		WORD	starting column
		DWORD	pointer to string
		WORD	length of string
		WORD	display style: 0000h normal, 0001h reverse video
		WORD	"OSTYLE"
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0F03h,INT 60/DI=1005h
--------b-60----DI0301-----------------------
INT 60 u - HP 95LX System Manager - CLEAR PORTION OF SCREEN
	DI = 0301h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	starting row (-3 is topmost, 0 is first user line)
		WORD	starting column
		WORD	number of rows
		WORD	number of columns
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0302h,INT 60/DI=1005h
--------b-60----DI0302-----------------------
INT 60 u - HP 95LX System Manager - SCROLL PORTION OF SCREEN
	DI = 0302h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	starting row???
		WORD	starting column???
		WORD	height of scroll region???
		WORD	width of scroll region???
		WORD	number of lines to scroll region???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0301h
--------b-60----DI0303-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_XCHG"
	DI = 0303h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
		WORD	???
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0304-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_CHRATTR"
	DI = 0304h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0305-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_CHRRVRT"
	DI = 0305h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0307-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_CHRINV"
	DI = 0307h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0308-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_ROWS_COLS"
	DI = 0308h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI0309-----------------------
INT 60 u - HP 95LX System Manager - SET SCREEN (VIDEO???) MODE
	DI = 0309h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	new mode
Return: ???
	STACK unchanged
--------b-60----DI030A-----------------------
INT 60 u - HP 95LX System Manager - GET SCREEN (VIDEO???) MODE
	DI = 030Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI030B-----------------------
INT 60 u - HP 95LX System Manager - SET CURSOR POSITION
	DI = 030Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	row (-3 is topmost, 0 is first non-reserved line)
		WORD	column
Return: ???
	STACK unchanged
Note:	cursor is hidden if the specified position is not on the physical
	  display
SeeAlso: INT 10/AH=02h,INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0400-----------------------
INT 60 u - HP 95LX System Manager - "EDIT_INIT"
	DI = 0400h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to edit record (see #1928)
		DWORD	pointer to string to be edited
		WORD	initial length of string being edited
		WORD	maximum length of edited string
		WORD	row of edit field
		WORD	leftmost column of edit field
Return: ???
	STACK unchanged

Format of HP 95LX edit record:
Offset	Size	Description	(Table 1928)
 00h	WORD	current length of edit buffer
 02h	BYTE	flag for special processing on first character
 03h	BYTE	flags
		bit 0: tab handling
 04h	WORD	editing in prompt window?
 06h	DWORD	pointer to top line of prompt window message
 0Ah	WORD	length of top line of prompt
 0Ch	DWORD	pointer to second line of prompt window message
 10h	WORD	length of second line of prompt
 12h 80 BYTEs	workspace for editing
 62h  2 WORDs	line array needed for multi-line editing
 66h 36 BYTEs	multi-line edit record (see #1929)
 8Ah	WORD	displayable columns

Format of HP 95LX multi-line edit record:
Offset	Size	Description	(Table 1929)
 00h	DWORD	pointer to user-supplied edit buffer
 04h	WORD	length of edit buffer
 06h	WORD	current cursor position
 08h	WORD	starting row of edit area (-3 is topmost, 0 is first user line)
 0Ah	WORD	starting column of edit area
 0Ch	WORD	height of edit area
 0Eh	WORD	width of edit area
 10h	WORD	current top row (-3 is topmost, 0 is first user line)
 12h	WORD	number of rows displayable
 14h	BYTE	cursor column
 15h	BYTE	01h if buffer has been modified
 16h	BYTE	first displayable column (ticker fields only)
 17h	BYTE	01h if wordwrap enabled, FFh if ticker field
 18h	DWORD	pointer to array of line starts (at least one bigger than edit
		  area is high)
 1Ch	BYTE	currently marking?
 1Dh	BYTE	flag
 1Eh	WORD	offset of mark start
 20h	WORD	offset of mark end (inclusive)
 22h	WORD	displayable columns
--------b-60----DI0401-----------------------
INT 60 u - HP 95LX System Manager - EDIT ON TOP LINE
	DI = 0401h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to edit record (see #1928)
		DWORD	pointer to string to edit
		WORD	initial length of string being edited
		WORD	maximum length of edited string
		DWORD	pointer to first line of prompt
		WORD	length of first line
		DWORD	pointer to second line of prompt
		WORD	length of second line
Return: ???
	STACK unchanged
--------b-60----DI0402-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY OR REDISPLAY EDIT FIELD
	DI = 0402h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to edit record (see #1928)
Return: ???
	STACK unchanged
--------b-60----DI0403-----------------------
INT 60 u - HP 95LX System Manager - LET SYSTEM MANAGER PROCESS EDITING KEYSTROK
	DI = 0403h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to edit record (see #1928)
		WORD	keystroke
		DWORD	pointer to WORD buffer for result code
Return: result code buffer filled with 0001h if editing complete
	STACK unchanged
--------b-60----DI0404-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_INI"
	DI = 0404h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
		WORD	???
		WORD	???
		DWORD	pointer to ???
		WORD	???
		WORD	???
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0405-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_DIS"
	DI = 0405h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0406-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_KEY"
	DI = 0406h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0407-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_FIL"
	DI = 0407h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0408-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_MARK"
	DI = 0408h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0409-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_UNMARK"
	DI = 0409h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI040A-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_CUTMARK"
	DI = 040Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI040B-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_INS_STR"
	DI = 040Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0500-----------------------
INT 60 u - HP 95LX System Manager - OPEN FILE
	DI = 0500h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to filename
		WORD	length of filename
		WORD	???
		WORD	suppress buffering if nonzero
Return: AX = status
	STACK unchanged
SeeAlso: INT 60/DI=0501h,INT 60/DI=0502h,INT 60/DI=0508h

Format of HP 95LX file state record:
Offset	Size	Description	(Table 1930)
 00h	WORD	DOS file handle
 02h	WORD	state flags (see #1931)
 04h	DWORD	current DOS physical file offset (FFFFFFFFh if unknown)
 08h	DWORD	DOS file offset of start of buffer
 0Ch	DWORD	effective file offset as seen by caller
 10h	WORD	number of bytes in file buffer
---buffered I/O only---
 12h 512 BYTEs	file buffer

Bitfields for HP 95LX file state flags:
Bit(s)	Description	(Table 1931)
 0	buffer contents valid
 1	buffer is dirty and must be written
 2	unbuffered I/O
 3	file is a character device
SeeAlso: #1930
--------b-60----DI0501-----------------------
INT 60 u - HP 95LX System Manager - OPEN FILE IN READ-ONLY MODE
	DI = 0501h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to filename
		WORD	length of filename
		WORD	???
		WORD	suppress buffering if nonzero
Return: AX = status
	STACK unchanged
SeeAlso: INT 60/DI=0500h
--------b-60----DI0502-----------------------
INT 60 u - HP 95LX System Manager - CREATE NEW FILE
	DI = 0502h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to filename
		WORD	length of filename
		WORD	???
		WORD	suppress buffering if nonzero
Return: AX = status
	STACK unchanged
SeeAlso: INT 60/DI=0500h,INT 60/DI=0503h
--------b-60----DI0503-----------------------
INT 60 u - HP 95LX System Manager - CREATE OR TRUNCATE FILE
	DI = 0503h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to filename
		WORD	length of filename
		WORD	???
		WORD	suppress buffering if nonzero
Return: AX = status
	STACK unchanged
SeeAlso: INT 60/DI=0502h
--------b-60----DI0504-----------------------
INT 60 u - HP 95LX System Manager - READ FROM FILE
	DI = 0504h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to data buffer
		WORD	number of bytes to read
		DWORD	pointer to WORD in which to return actual bytes read
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0505h
--------b-60----DI0505-----------------------
INT 60 - HP 95LX System Manager - WRITE TO FILE
	DI = 0505h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to data
		WORD	length of data
Return: AX = status
	STACK unchanged
SeeAlso: INT 60/DI=0504h
--------b-60----DI0506-----------------------
INT 60 u - HP 95LX System Manager - SET FILE POSITION
	DI = 0506h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		2 WORDs	???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0507h
--------b-60----DI0507-----------------------
INT 60 u - HP 95LX System Manager - GET FILE POSITION
	DI = 0507h "M_TELL"
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
		DWORD	pointer to DWORD buffer for file position???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0506h
--------b-60----DI0508-----------------------
INT 60 u - HP 95LX System Manager - CLOSE FILE
	DI = 0508h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to file state record (see #1930)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0500h
--------b-60----DI0509-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_SETPAT"
	DI = 0509h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI050A-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_MATCH"
	DI = 050Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ??? (see #1932)
		DWORD	pointer to ???
Return: ???
	STACK unchanged

Format of HP 95LX pattern match control block:
Offset	Size	Description	(Table 1932)
 00h 43 BYTEs	FindFirst data block (see #0839 at INT 21/AH=4Eh)
 2Bh 80 BYTEs	full path name
 7Bh	BYTE	offset of last component of filename
 7Ch	BYTE	DOS function number (4Eh or 4Fh)
--------b-60----DI050B-----------------------
INT 60 u - HP 95LX System Manager - IDENTIFY FILENAME REFERENT
	DI = 050Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
		DWORD	pointer to ???
Return: ??? = result (see #1933)
	???
	STACK unchanged

(Table 1933)
Values returned by HP 95LX System Manager:
 0000h	nonexistent
 0001h	file
 0002h	directory
 0003h	character device
--------b-60----DI050C-----------------------
INT 60 u - HP 95LX System Manager - DELETE FILE
	DI = 050Ch "M_DELETE"
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI050D-----------------------
INT 60 u - HP 95LX System Manager - RENAME FILE
	DI = 050Dh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
		DWORD	pointer to ???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI050E-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_GETDIR"
	DI = 050Eh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI050F-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_SETDIR"
	DI = 050Fh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0510-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_VOLUME"
	DI = 0510h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0511-----------------------
INT 60 u - HP 95LX System Manager - MAKE A SUBDIRECTORY
	DI = 0511h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
SeeAlso: INT 21/AH=39h,INT 60/DI=0512h
--------b-60----DI0512-----------------------
INT 60 u - HP 95LX System Manager - REMOVE A SUBDIRECTORY
	DI = 0512h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
SeeAlso: INT 21/AH=3Ah,INT 60/DI=0511h
--------b-60----DI0513-----------------------
INT 60 u - HP 95LX System Manager - GET DEFAULT DRIVE
	DI = 0513h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ??? buffer for current drive
Return: ???
	STACK unchanged
SeeAlso: INT 21/AH=19h,INT 60/DI=0514h
--------b-60----DI0514-----------------------
INT 60 u - HP 95LX System Manager - SET DEFAULT DRIVE
	DI = 0514h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	new drive
Return: ???
	STACK unchanged
SeeAlso: INT 21/AH=0Eh,INT 60/DI=0513h
--------b-60----DI0515-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_FDATE"
	DI = 0515h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0516-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_GET_SYSDIR"
	DI = 0516h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0517-----------------------
INT 60 u - HP 95LX System Manager - GET FILE ATTRIBUTES
	DI = 0517h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
		DWORD	pointer to ??? buffer for file's attributes???
Return: ???
	STACK unchanged
SeeAlso: INT 21/AX=4300h,INT 60/DI=0518h
--------b-60----DI0518-----------------------
INT 60 u - HP 95LX System Manager - SET FILE ATTRIBUTES
	DI = 0518h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
		WORD	new attributes???
Return: ???
	STACK unchanged
SeeAlso: INT 21/AX=4301h,INT 60/DI=0517h
--------b-60----DI0519-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_COMMON_OPEN"
	DI = 0519h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		WORD	???
		WORD	???
		WORD	???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI051A-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_COPYDT"
	DI = 051Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI051B-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_GETFDT"
	DI = 051Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI051C-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_PUTFDT"
	DI = 051Ch
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0600-----------------------
INT 60 u - HP 95LX System Manager - PROCESS INITIALIZING
	DI = 0600h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0601h,INT 61"HP 95LX"
--------b-60----DI0601-----------------------
INT 60 u - HP 95LX System Manager - PROCESS TERMINATION
	DI = 0601h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: never
	STACK unchanged
SeeAlso: INT 21/AH=4Ch,INT 2F/AX=1122h,INT 60/DI=0600h
--------b-60----DI0602-----------------------
INT 60 u - HP 95LX System Manager - "M_LOCK" - PREVENT TASK SWITCHES
	DI = 0602h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=101Bh,INT 2F/AX=1681h,INT 60/DI=0603h
--------b-60----DI0603-----------------------
INT 60 u - HP 95LX System Manager - "M_UNLOCK" - ALLOW TASK SWITCHES
	DI = 0603h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=101Ch,INT 2F/AX=1682h,INT 60/DI=0602h
--------b-60----DI0604-----------------------
INT 60 u - HP 95LX System Manager - "M_SPAWN"
	DI = 0604h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 21/AH=4Bh
--------b-60----DI0605-----------------------
INT 60 u - HP 95LX System Manager - "M_APPCOUNT"
	DI = 0605h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI0606-----------------------
INT 60 u - HP 95LX System Manager - "M_REBOOT"
	DI = 0606h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 14/AH=17h"FOSSIL",INT 19
--------b-60----DI0607-----------------------
INT 60 u - HP 95LX System Manager - "M_SPAWNARG"
	DI = 0607h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0608-----------------------
INT 60 u - HP 95LX System Manager - "M_REG_APP_NAME"
	DI = 0608h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0609-----------------------
INT 60 u - HP 95LX System Manager - "M_APP_NAME"
	DI = 0609h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: DX:AX -> ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0700-----------------------
INT 60 u - HP 95LX System Manager - OPEN CLIPBOARD
	DI = 0700h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ??? = error code (see #1934)
	???
	STACK unchanged
SeeAlso: INT 60/DI=0701h,INT 60/DI=0702h

(Table 1934)
Values for HP 95LX error code:
 0000h	successful
 FFF8h	transfer request out of bounds
 FFF9h	no such representation
 FFFAh	no representation open
 FFFBh	a representation is already open
 FFFCh	representation already exists
 FFFDh	heap allocation failure
 FFFEh	clipboard not open
 FFFFh	clipboard access denied
--------b-60----DI0701-----------------------
INT 60 u - HP 95LX System Manager - CLOSE CLIPBOARD
	DI = 0701h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0700h,INT 60/DI=0702h
--------b-60----DI0702-----------------------
INT 60 u - HP 95LX System Manager - RESET CLIPBOARD
	DI = 0702h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0700h
--------b-60----DI0704-----------------------
INT 60 u - HP 95LX System Manager - "M_NEW_REP" - START A NEW REPRESENTATION???
	DI = 0704h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0705h,INT 60/DI=0706h,INT 60/DI=0707h
--------b-60----DI0705-----------------------
INT 60 u - HP 95LX System Manager - CLIPBOARD SERVICE "M_FINI_REP"
	DI = 0705h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0704h
--------b-60----DI0706-----------------------
INT 60 u - HP 95LX System Manager - CLIPBOARD SERVICE "M_REP_NAME"
	DI = 0706h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0704h,INT 60/DI=0707h
--------b-60----DI0707-----------------------
INT 60 u - HP 95LX System Manager - CLIPBOARD SERVICE "M_REP_INDEX"
	DI = 0707h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0704h,INT 60/DI=0706h
--------b-60----DI0708-----------------------
INT 60 u - HP 95LX System Manager - WRITE TO CLIPBOARD
	DI = 0708h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to data to be written???
		WORD	length of data???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0709h
--------b-60----DI0709-----------------------
INT 60 u - HP 95LX System Manager - READ FROM CLIPBOARD
	DI = 0709h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
		DWORD	pointer to buffer for data???
		WORD	length of buffer???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0708h
--------b-60----DI0800-----------------------
INT 60 u - HP 95LX System Manager - BEEP
	DI = 0800h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0801h,INT 60/DI=0802h,INT 60/DI=0803h
--------b-60----DI0801-----------------------
INT 60 u - HP 95LX System Manager - SOUND SERVICE "M_THUD"
	DI = 0801h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0800h,INT 60/DI=0802h,INT 60/DI=0803h
--------b-60----DI0802-----------------------
INT 60 u - HP 95LX System Manager - MAKE A SOUND PATTERN
	DI = 0802h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	pattern number (00h-06h)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0800h,INT 60/DI=0801h,INT 60/DI=0803h
--------b-60----DI0803-----------------------
INT 60 u - HP 95LX System Manager - TURN OFF SOUND
	DI = 0803h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0800h,INT 60/DI=0801h,INT 60/DI=0802h
--------b-60----DI0900-----------------------
INT 60 - HP 95LX System Manager - ALLOCATE REGULAR MEMORY BLOCK
	DI = 0900h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	size of block in bytes
Return: AX -> memory block
	STACK unchanged
Note:	System Manager-compliant applications are always small-model (64K code,
	  64K data)
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0902h,INT 60/DI=0903h
--------b-60----DI0902-----------------------
INT 60 u - HP 95LX System Manager - FREE REGULAR MEMORY BLOCK
	DI = 0902h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	offset of memory block???
Return: ???
	STACK unchanged
Note:	System Manager-compliant applications are always small-model (64K code,
	  64K data)
SeeAlso: INT 60/DI=0900h,INT 60/DI=0904h
--------b-60----DI0903-----------------------
INT 60 u - HP 95LX System Manager - ALLOCATE LARGE MEMORY BLOCK
	DI = 0903h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	size of block in bytes???
Return: AX -> memory block???
	STACK unchanged
SeeAlso: INT 60/DI=0900h,INT 60/DI=0904h
--------b-60----DI0904-----------------------
INT 60 u - HP 95LX System Manager - FREE LARGE MEMORY BLOCK
	DI = 0904h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	segment of memory block???
Return: AX -> ???
	STACK unchanged
SeeAlso: INT 60/DI=0902h,INT 60/DI=0903h
--------b-60----DI0B00-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_DTINFO"
	DI = 0B00h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B01-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GETDTM"
	DI = 0B01h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B02-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_SETDTM"
	DI = 0B02h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B03-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_XALARM"
	DI = 0B03h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0B04-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_ALARM"
	DI = 0B04h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to alarm record??? (see #1935)
		WORD	???
Return: ???
	STACK unchanged

Format of HP 95LX alarm record:
Offset	Size	Description	(Table 1935)
 00h	BYTE	hour
 01h	BYTE	minute
 02h	BYTE	second
 03h	BYTE	unused padding
 04h	WORD	rescheduling interval, in seconds
 06h	BYTE	are seconds significant?
 07h	BYTE	alarm sound
 08h 40 BYTEs	message displayed when alarm activates
 30h	BYTE	task ID of owner
 31h	BYTE	application's own use for sub-class
 32h  4 BYTEs	application's own use for private data
--------b-60----DI0B05-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_START_SW"
	DI = 0B05h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B06-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SW"
	DI = 0B06h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B07-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_STOP_SW"
	DI = 0B07h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B08-----------------------
INT 60 u - HP 95LX System Manager - "M_TELLTIME" - DISPLAY TIMESTAMP
	DI = 0B08h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	timestamp format (see #1936)
		WORD	row (-3 is topmost, 0 is first non-reserved line)
		WORD	column
Return: ???
	STACK unchanged

Bitfields for HP 95LX timestamp format:
Bit(s)	Description	(Table 1936)
 1-0	timestamp components
	00 date only
	01 time only
	10 date and time
	11 day and date
 4	supply am/pm
 5	supply seconds
 6	show year
 7	four-digit year
--------b-60----DI0B09-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SETTINGS"
	DI = 0B09h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ??? (see #1937)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B0Ah,INT 60/DI=0B0Fh

Format of HP 95LX system settings:
Offset	Size	Description	(Table 1937)
 00h	WORD	country code
 02h	WORD	speaker volume (00h-03h or FFh for off)
 04h	WORD	contrast level (00h-0Fh)
 06h	WORD	week start (00h Sunday, 01h Monday)
 08h	WORD	punctuation format (see #1938)
 0Ah	WORD	two-character language code (only 5355h = "US" byte-swapped)
 0Ch	WORD	current date format (see #1939)
 0Eh	WORD	current time format (see #1940)
 10h	WORD	collating sequence
		00h numbers first, 01h letters first, 02h ASCII
 12h 80 BYTEs	name of picture file
 62h 30 BYTEs	name
 80h 30 BYTEs	title
 9Eh 28 BYTEs	company name
 BAh	WORD	number of languages
 BCh  6 BYTEs	available languages
 C2h 66 BYTEs	language menu
104h  2 BYTEs	ASCIZ date separator
106h  2 BYTEs	ASCIZ time separator
108h	BYTE	date order
109h	BYTE	use 24 hour time?
10Ah 16 BYTEs	currency string
11Ah	WORD	currency string position (00h prefix, 01h suffix)
11Ch	WORD	keyboard (see #1941)
11Eh	WORD	printer baud rate
		00h 300, 01h 1200, 02h 2400, 03h 4800, 04h 9600, 05h 19200
120h	WORD	printer driver code
		00h Epson FX80, 01h HP Laserjet, 02h IBM ProPrinter
122h	WORD	printer interface (00h COM1, 01h COM2, 02h IR, 03h LPT1)
124h	WORD	system manager interrupt (60h by default)
126h	WORD	code page (01h CP850, 02h CP437)
128h	WORD	active exit key
12Ah	WORD	active menu key
12Ch	WORD	active CHAR key toggle
12Eh  6 BYTEs	alarm

(Table 1938)
Values for HP 95LX punctuation format:
 code	decimal arg	thousands
 00h	.	,	,
 01h	,	.	.
 02h	.	;	;
 03h	,	;	.
 04h	.	,	" "
 05h	,	.	" "
 06h	.	;	" "
 07h	,	;	" "

(Table 1939)
Values for HP 95LX current date format:
 00h	dd-mmm-yy
 01h	dd-mmm
 02h	mmm-yy
 03h	mm/dd/yy
 04h	dd/mm/yy
 05h	dd.mm.yy
 06h	yy-mm-dd
 07h	mm/dd
 08h	dd/mm
 09h	dd.mm
 0Ah	mm-dd

(Table 1940)
Values for HP 95LX current time format:
 00h	HH:MM:SS am/pm
 01h	HH:MM am/pm
 02h	HH:MM:SS
 03h	HH.MM.SS
 04h	HH,MM,SS
 05h	HHhMMmSSs
 06h	HH:MM
 07h	HH.MM
 08h	HH,MM
 09h	HHhMMm

(Table 1941)
Values for HP 95LX keyboard layout:
 0001h	Belgium
 0002h	French Canadian
 0004h	Denmark
 0008h	Finland
 0010h	French
 0020h	Finland
 0040h	Italy
 0080h	Netherlands
 0100h	Norway
 0200h	Portugal
 0400h	Spain
 0800h	Sweden
 1000h	Swiss French
 2000h	Swiss German
 4000h	United Kingdom
 8000h	USA
--------b-60----DI0B0A-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_SET_SETTINGS"
	DI = 0B0Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B09h
--------b-60----DI0B0B-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_START_TIMER"
	DI = 0B0Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B0Ch,INT 60/DI=0B0Dh
--------b-60----DI0B0C-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_STOP_TIMER"
	DI = 0B0Ch
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B0Bh,INT 60/DI=0B0Dh
--------b-60----DI0B0D-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_TIMER"
	DI = 0B0Dh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B0Bh,INT 60/DI=0B0Ch
--------b-60----DI0B0E-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_TELL_ANYTIME"
	DI = 0B0Eh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
		WORD	???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: DX:AX -> ???
	STACK unchanged
--------b-60----DI0B0F-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVCE "M_GET_SETTINGS_ADDR"
	DI = 0B0Fh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> system settings record (see #1937)
	STACK unchanged
SeeAlso: INT 60/DI=0B09h
--------b-60----DI0B10-----------------------
INT 60 u - HP 95LX System Manager - PARSE DATE SPECIFICATION
	DI = 0B10h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B11-----------------------
INT 60 u - HP 95LX System Manager - PARSE TIME SPECIFICATION
	DI = 0B11h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0B12-----------------------
INT 60 u - HP 95LX System Manager - SET DATE PARSING RULE
	DI = 0B12h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	new parsing rule (see #1942)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B13h

(Table 1942)
Values for HP 95LX date parsing rule:
 01h	day-month-year
 02h	month-day-year
 03h	year-month-day
 04h	"DMYO"
 05h	"MDYO"
 OR with 08h to get any year
--------b-60----DI0B13-----------------------
INT 60 u - HP 95LX System Manager - SET TIME PARSING RULE
	DI = 0B13h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	new parsing rule (see #1943)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0B12h

(Table 1943)
Values for HP 95LX time parsing rule:
 01h	HH:MM:SS (am/pm)
 02h	HH:MM:SS (24hr)
 03h	HHMM:SS (24hr)
 04h	HH:MM:SS.hh (24hr)
 05h	HH:MM (am/pm)
 06h	HH:MM (24hr)
 07h	HHMM (24hr)
--------b-60----DI0B14-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_POST_TIME"
	DI = 0B14h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI0B15-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_DAY_TRIGGER"
	DI = 0B15h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0C00-----------------------
INT 60 u - HP 95LX System Manager - OPEN PRINTER
	DI = 0C00h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0C01h,INT 60/DI=0C02h,INT 60/DI=0C03h
--------b-60----DI0C01-----------------------
INT 60 u - HP 95LX System Manager - CLOSE PRINTER
	DI = 0C01h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
Note:	relinquishes control of printer
SeeAlso: INT 60/DI=0C00h
--------b-60----DI0C02-----------------------
INT 60 u - HP 95LX System Manager - WRITE TO PRINTER
	DI = 0C02h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to data to be written
		WORD	length of data
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0C00h
--------b-60----DI0C03-----------------------
INT 60 u - HP 95LX System Manager - INITIALIZE PRINTER
	DI = 0C03h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0C00h
--------b-60----DI0C04-----------------------
INT 60 u - HP 95LX System Manager - "M_TRANS_PRINTER"
	DI = 0C04h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0C05-----------------------
INT 60 u - HP 95LX System Manager - "M_FALL_PRINTER"
	DI = 0C05h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0E00-----------------------
INT 60 u - HP 95LX System Manager - COMMUNICATIONS SERVICE "M_COMM_INIT"
	DI = 0E00h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: #1944,INT 60/DI=0E01h,INT 60/DI=0E02h

(Table 1944)
Values for HP 95LX error code:
 0000h	successful
 FFF1h	"E_BUSY"
 FFF2h	timeout
 FFF3h	framing error
 FFF4h	parity error
 FFF5h	overrun error
 FFF6h	"E_EMPTY"
 FFF7h	"E_CONECT"
 FFF8h	not open
 FFF9h	out of memory
 FFFAh	buffer overflow
 FFFBh	"E_NOFIT"
 FFFCh	unsupported
 FFFDh	"E_IVOPR"
 FFFEh	"E_IVCHN"
 FFFFh	"E_REOPEN"
--------b-60----DI0E01-----------------------
INT 60 u - HP 95LX System Manager - OPEN COMMUNICATIONS CHANNEL
	DI = 0E01h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to WORD buffer for comm channel handle
		WORD	communications line number (01h-04h)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E00h,INT 60/DI=0E02h
--------b-60----DI0E02-----------------------
INT 60 u - HP 95LX System Manager - CLOSE COMMUNICATIONS CHANNEL
	DI = 0E02h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	comm channel handle
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E00h,INT 60/DI=0E01h
--------b-60----DI0E03-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_GETMDM"
	DI = 0E03h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E04-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_ANSWER"
	DI = 0E04h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E05-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_DIAL"
	DI = 0E05h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0E06-----------------------
INT 60 u - HP 95LX System Manager - RESET COMMUNICATIONS CHANNEL
	DI = 0E06h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	comm channel handle
		WORD	reset options (see #1945)
Return: ???
	STACK unchanged

Bitfields for HP 95LX reset options:
Bit(s)	Description	(Table 1945)
 0	reset line
 1	flush transmit buffer
 2	flush receive buffer
 3	reset modem
 4	reset receiver's ^S state
 5	reset transmitter's ^S state
--------b-60----DI0E07-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_HANGUP"
	DI = 0E07h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E08-----------------------
INT 60 u - HP 95LX System Manager - SEND DATA OVER COMM CHANNEL
	DI = 0E08h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	comm channel handle
		DWORD	pointer to data to be sent
		WORD	option flags
			bit 0: send partial buffer
			bit 1: turn on receiver after sending
		DWORD	pointer to WORD containing length of data to be sent
Return: length WORD updated to contain number of bytes actually sent???
	STACK unchanged
SeeAlso: INT 60/DI=0E09h,INT 60/DI=0E0Bh
--------b-60----DI0E09-----------------------
INT 60 u - HP 95LX System Manager - QUERY COMM CHANNEL TRANSMIT QUEUE
	DI = 0E09h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ??? WORD
		DWORD	pointer to ??? WORD
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E0Ah
--------b-60----DI0E0A-----------------------
INT 60 u - HP 95LX System Manager - QUERY COMM CHANNEL RECEIVE QUEUE
	DI = 0E0Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	comm channel handle
		DWORD	pointer to WORD to get receive buffer size
		DWORD	pointer to WORD to get free bytes in receive buffer
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E09h,INT 60/DI=0E0Bh
--------b-60----DI0E0B-----------------------
INT 60 u - HP 95LX System Manager - RECEIVE DATA FROM COMM CHANNEL
	DI = 0E0Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	comm channel handle
		DWORD	pointer to data buffer
		DWORD	pointer to WORD (call) length of data buffer
					(ret) number of bytes received
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E08h,INT 60/DI=0E0Ah
--------b-60----DI0E0C-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_HAZCMD"
	DI = 0E0Ch
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E0D-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_COMAND"
	DI = 0E0Dh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E0E-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_BREAK"
	DI = 0E0Eh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E0F-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_FRCXON"
	DI = 0E0Fh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E10-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_FRCXOF"
	DI = 0E10h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E11-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_SETDTR"
	DI = 0E11h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E12-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_XMITNG"
	DI = 0E12h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E13-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_STATUS"
	DI = 0E13h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E14-----------------------
INT 60 u - HP 95LX System Manager - SET COMMUNICATIONS SETTINGS
	DI = 0E14h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	comm channel handle
		DWORD	pointer to communications settings (see #1946)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E15h

Format of HP 95LX communications settings:
Offset	Size	Description	(Table 1946)
 00h	BYTE	dial type ('T' tone, 'P' pulse)
 01h	WORD	baud rate divisor (115200/baud_rate)
 03h	BYTE	parity (00h none, 08h odd, 18h even, 28h mark, 38h space)
 04h	BYTE	stop bits (00h one, 04h two)
 05h	BYTE	data bits - 5
 06h	BYTE	software handshake
		01h none, 02h XOFF/XON, 04h XOFF/any, 08h ENQ/ACK
 07h	BYTE	infrared (01h off, 02h on)
 08h	BYTE	duplex (01h half, 02h full)
 09h	BYTE	echo (01h echo, 02h no echo)
--------b-60----DI0E15-----------------------
INT 60 u - HP 95LX System Manager - GET COMMUNICATIONS SETTINGS
	DI = 0E15h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to buffer for settings (see #1946)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0E14h
--------b-60----DI0E16-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_CNFGUR"
	DI = 0E16h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		WORD	???
		WORD	???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI0E17-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_QRYERR"
	DI = 0E17h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0F00-----------------------
INT 60 u - HP 95LX System Manager - "M_ERRMSG"
	DI = 0F00h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
		DWORD	pointer to ???
		WORD	???
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0F01-----------------------
INT 60 u - HP 95LX System Manager - DRAW STANDARD TITLE BOX
	DI = 0F01h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ASCIZ title string
Return: ???
	STACK unchanged
--------b-60----DI0F02-----------------------
INT 60 u - HP 95LX System Manager - "SHOWNAME"
	DI = 0F02h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI0F03-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY TWO-LINE MESSAGE BOX
	DI = 0F03h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to first line of message
		WORD	length of first line
		DWORD	pointer to second line of message
		WORD	length of second line
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0300h,INT 60/DI=0F04h,INT 60/DI=0F09h
--------b-60----DI0F04-----------------------
INT 60 u - HP 95LX System Manager - REMOVE MESSAGE BOX
	DI = 0F04h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0F03h,INT 60/DI=0F09h
--------b-60----DI0F05-----------------------
INT 60 u - HP 95LX System Manager - "M_COM_TIMER_ADDR"
	DI = 0F05h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
	STACK unchanged
--------b-60----DI0F06-----------------------
INT 60 u - HP 95LX System Manager - "M_COM_TIMER_COUNT_ADDR"
	DI = 0F06h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
	STACK unchanged
--------b-60----DI0F07-----------------------
INT 60 u - HP 95LX System Manager - "M_SYS_RSRC_ADDR"
	DI = 0F07h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
	STACK unchanged
--------b-60----DI0F08-----------------------
INT 60 u - HP 95LX System Manager - "M_BIOS_OUTSTR"
	DI = 0F08h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI0F09-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY THREE-LINE MESSAGE BOX
	DI = 0F09h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to first line of message
		WORD	length of first line
		DWORD	pointer to second line of message
		WORD	length of second line
		DWORD	pointer to third line of message
		WORD	length of third line
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0F03h,INT 60/DI=0F04h
--------b-60----DI0F0A-----------------------
INT 60 u - HP 95LX System Manager - DISABLE MACROS
	DI = 0F0Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0F0Bh
--------b-60----DI0F0B-----------------------
INT 60 u - HP 95LX System Manager - ENABLE MACROS
	DI = 0F0Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 60/DI=0F0Ah
--------b-60----DI0F0C-----------------------
INT 60 u - HP 95LX System Manager - "M_DATE_TIME_SEPS"
	DI = 0F0Ch
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI0F0D-----------------------
INT 60 u - HP 95LX System Manager - "M_FORM_FT"
	DI = 0F0Dh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: DX:AX -> ???
	STACK unchanged
--------b-60----DI0F0E-----------------------
INT 60 u - HP 95LX System Manager - "M_RAM_IV_INFO"
	DI = 0F0Eh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: DX:AX -> ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1005-----------------------
INT 60 u - HP 95LX System Manager - "M_DIRTY_SYNC" - FORCE SCREEN UPDATE
	DI = 1005h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
SeeAlso: INT 10/AH=FFh,INT 60/DI=0300h,INT 60/DI=0301h
--------b-60----DI1200-----------------------
INT 60 u - HP 95LX System Manager - RESOURCE SERVICE "MAP_RESOURCE_FILE"
	DI = 1200h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI1201-----------------------
INT 60 u - HP 95LX System Manager - "GET_RESOURCE_PTR"
	DI = 1201h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		WORD	???
Return: DX:AX -> ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1202-----------------------
INT 60 u - HP 95LX System Manager - "GET_RSRC_TAB_PTR"
	DI = 1202h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
	STACK unchanged
--------b-60----DI1203-----------------------
INT 60 u - HP 95LX System Manager - "INIT_SYSMGR_RSRCS"
	DI = 1203h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: ???
	STACK unchanged
--------b-60----DI1300-----------------------
INT 60 u - HP 95LX System Manager - INITIALIZE HELP SYSTEM
	DI = 1300h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI1301-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY HELP
	DI = 1301h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
--------b-60----DI1302-----------------------
INT 60 u - HP 95LX System Manager - "M_HELP_KEY"
	DI = 1302h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI1303-----------------------
INT 60 u - HP 95LX System Manager - "M_HELP_TERM"
	DI = 1303h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1400-----------------------
INT 60 u - HP 95LX System Manager - "M_ColInit"
	DI = 1400h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
Return: AX = ???
	STACK unchanged
--------b-60----DI1401-----------------------
INT 60 u - HP 95LX System Manager - "M_ColCpStr"
	DI = 1401h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI1402-----------------------
INT 60 u - HP 95LX System Manager - "M_ColLicsStr"
	DI = 1402h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1403-----------------------
INT 60 u - HP 95LX System Manager - "M_ColLicsChar"
	DI = 1403h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1404-----------------------
INT 60 u - HP 95LX System Manager - "M_ColToLower"
	DI = 1404h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI1405-----------------------
INT 60 u - HP 95LX System Manager - "M_ColCpSearch"
	DI = 1405h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
		DWORD	pointer to ???
		WORD	???
		WORD	???
Return: ???
	STACK unchanged
--------b-60----DI1406-----------------------
INT 60 u - HP 95LX System Manager - "M_ColToUpper"
	DI = 1406h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		DWORD	pointer to ???
		WORD	???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1500-----------------------
INT 60 u - HP 95LX System Manager - "GrDispInit"
	DI = 1500h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1501-----------------------
INT 60 u - HP 95LX System Manager - "GrDispClear"
	DI = 1501h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1502-----------------------
INT 60 u - HP 95LX System Manager - "GrDispDot"
	DI = 1502h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1503-----------------------
INT 60 u - HP 95LX System Manager - "GrDispDraw"
	DI = 1503h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1504-----------------------
INT 60 u - HP 95LX System Manager - "GrDispFill"
	DI = 1504h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1505-----------------------
INT 60 u - HP 95LX System Manager - "GrDispRead"
	DI = 1505h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1506-----------------------
INT 60 u - HP 95LX System Manager - "GrDispString"
	DI = 1506h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1507-----------------------
INT 60 u - HP 95LX System Manager - "GrDispPan"
	DI = 1507h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1508-----------------------
INT 60 u - HP 95LX System Manager - "GrDispZoom"
	DI = 1508h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI1509-----------------------
INT 60 u - HP 95LX System Manager - "GrDispSave"
	DI = 1509h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI150A-----------------------
INT 60 u - HP 95LX System Manager - "GrDispRestore"
	DI = 150Ah
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
--------b-60----DI150B-----------------------
INT 60 u - HP 95LX System Manager - "GrDispCorner"
	DI = 150Bh
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1604-----------------------
INT 60 u - HP 95LX System Manager - "CP_TO_LICS"
	DI = 1604h
	STACK:	2 WORDs unused dummies (for calls from high level languages)
		???
Return: ???
	STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------G-6000-------------------------------
INT 60 - SYS_PROF.EXE - PROFILER STATUS
	AH = 00h
Return: AX = 0000h    profiling is off
	    otherwise profiling is on
Note:	SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
	  Issue 47
SeeAlso: AH=01h"SYS_PROF",02h"SYS_PROF"
--------G-6000-------------------------------
INT 60 - MDEBUG - GET STATUS
	AH = 00h
	DS:SI -> password or a null byte
Return: AX = return code
	    FFFEh password is invalid
	    FFFDh display mode is invalid
		 else successful
		ES = value of the monitor register SE
		DI = value of the monitor register OF
		CH = monitor color
		CL = interpreter color
		BH = monitor start line
		BL = interpreter start line
		AH = makecode of the hotkey
		AL = ASCII code of the hotkey
		DL = status of special keys (only SHIFT, ALT, CTRL) for the
		      hotkey (coded as for the keyboard flag at 0040h:0017h)
		DH = basic process number for the communication with drivers
		      process number for the display driver, DH+1 = process
		      number for the command driver(s)
	DS:SI -> MDEBUG identification table (see #1947)
Program: MDEBUG is a shareware memory-resident debugging tool by Bernd
	  Schemmer, including a memory monitor, an interpreter, and a
	  disassembler
Notes:	MDEBUG uses INT 60 by default, but may be directed to any of INT 60
	  through INT 67; the interrupt handler is preceded by the signature
	  "USERINT" and is not chained
	if DS:SI points at a null byte, MDEBUG will prompt for a password if
	  passwords are active; enough stack space must be provided for an
	  INT 10h call (which MDEBUG uses while prompting for the password)
SeeAlso: AH=02h"MDEBUG"
Index:	hotkeys;MDEBUG

Format of MDEBUG identification table:
Offset	Size	Description	(Table 1947)
 -2	WORD	entry offset
 00h	WORD	CS of MDEBUG
 02h	DWORD	old INT 08h vector
 06h	DWORD	old INT 09h vector
 0Ah	DWORD	address INT 16h routine used by MDEBUG
 0Eh	BYTE	length of version string
 0Fh  N BYTEs	version string
--------N-600000-----------------------------
INT 60 - RIFS - CLIENT - INSTALLATION CHECK
	AX = 0000h
Return: AX = 1234h if installed
	CF clear
Program: RIFS is the Remote Installable File System by "kyle"
Range:	INT 60 to INT 66 and INT 18,selected by scanning for 0000h:0000h vector
Note:	the installation check consists of testing for the signature "RIFS"
	  immediately preceding the interrupt handler
SeeAlso: AX=0001h,AX=0005h,AX=0007h,AX=0008h,INT 2F/AX=56000h
--------N-600001-----------------------------
INT 60 - RIFS - CLIENT - UNINSTALL
	AX = 0001h
Return: CF clear if successful
SeeAlso: AX=0000h,AX=0009h
--------N-600002-----------------------------
INT 60 - RIFS - CLIENT - REMAP DRIVE
	AX = 0002h
	BH = local drive number
	BL = remote drive number
Return: CF clear if successful
	CF set on error
SeeAlso: AX=0000h,AX=0003h,AX=0004h,INT 21/AX=5F03h,INT 21/AX=5F05h"STARLITE"
--------N-600003-----------------------------
INT 60 - RIFS - CLIENT - UNMAP DRIVE
	AX = 0003h
	BL = drive to unmap
Return: CF clear if successful
	CF set on error
SeeAlso: AX=0000h,AX=0002h,AX=0004h,INT 21/AX=5F04h,INT 21/AX=5F06h"STARLITE"
--------N-600004-----------------------------
INT 60 - RIFS - CLIENT - UNMAP ALL DRIVES
	AX = 0004h
Return: CF clear if successful
	CF set on error
SeeAlso: AX=0000h,AX=0002h,AX=0003h
--------N-600005-----------------------------
INT 60 - RIFS - CLIENT - GET TRANSLATION TABLE
	AX = 0005h
Return: CF clear if successful
	    ES:BX -> translation table
	CF set on error
SeeAlso: AX=0000h,AX=0006h,AX=0007h
--------N-600006-----------------------------
INT 60 - RIFS - CLIENT - GET STATISTICS TABLE
	AX = 0006h
Return: CF clear if successful
	    ES:BX -> statistics table
	CF set on error
SeeAlso: AX=0000h,AX=0005h,AX=0007h,AX=000Ah
--------N-600007-----------------------------
INT 60 - RIFS - CLIENT - GET PORT TRANSLATION TABLE
	AX = 0007h
Return: CF clear if successful
	    CX = number of entries
	    ES:BX -> port mapping table
	CF set on error
SeeAlso: AX=0000h,AX=0005h
--------N-600008-----------------------------
INT 60 - RIFS - SERVER - INSTALLATION CHECK
	AX = 0008h
Return: CF clear if successful
	CF set on error
Range:	INT 60 to INT 66 and INT 18,selected by scanning for 0000h:0000h vector
Note:	the installation check consists of testing for the signature "RIFS"
	  immediately preceding the interrupt handler
SeeAlso: AX=0000h,AX=0009h,AX=000Ah,AX=000Bh
--------N-600009-----------------------------
INT 60 - RIFS - SERVER - UNINSTALL
	AX = 0009h
Return: CF clear if successful
	CF set on error
SeeAlso: AX=0001h,AX=0008h
--------N-60000A-----------------------------
INT 60 - RIFS - SERVER - GET STATISTICS TABLE
	AX = 000Ah
Return: CF clear if successful
	    ES:BX -> statistics table
	CF set on error
SeeAlso: AX=0006h,AX=0008h,AX=0009h,AX=000Bh
--------N-60000B-----------------------------
INT 60 - RIFS - SERVER - RESET
	AX = 000Bh
Return: CF clear if successful
	CF set on error
Note:	closes all open files
SeeAlso: AX=0008h,AX=0009h
--------G-6001-------------------------------
INT 60 - MDEBUG - GET ADDRESS OF THE HELP REGISTERS
	AH = 01h
	DS:SI -> password or a null byte
Return: AX = return code
	    FFFEh password is invalid
	    FFFDh display mode is invalid
	    else successful
		ES:DI point to the help registers of MDEBUG
	       ES:DI-02h  -> R0 (WORD)
	       ES:DI	  -> R1 (WORD)
	       ES:DI+02h  -> R2 (WORD)
	       ES:DI+04h  -> R3 (WORD)
	       ...
	       ES:DI+0Eh  -> R8 (WORD)
--------G-6001-------------------------------
INT 60 - SYS_PROF.EXE - TURN PROFILING OFF
	AH = 01h
Note:	SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
	  Issue 47
SeeAlso: AH=00h"SYS_PROF",02h"SYS_PROF"
--------N-6001FF-----------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - GET DRIVER INFO
	AX = 01FFh
	BX = handle returned by function 02h
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
	    BX = version
	    CH = network interface class (see #1949)
	    DX = interface type (see #1949)
	    CL = number
	    DS:SI -> name
	    AL = driver functions supported
		01h basic
		02h basic and extended
		05h basic and high-performance
		06h basic, high-performance, and extended
		FFh not installed
Note:	the handle in BX is optional for drivers written to v1.07 or later of
	  the packet driver specification

(Table 1948)
Values for Packet Driver error code:
 01h "BAD_HANDLE"	invalid handle number
 02h "NO_CLASS"		no interfaces of the specified class found
 03h "NO_TYPE"		no interfaces of the specified type found
 04h "NO_NUMBER"	no interfaces of the specified number found
 05h "BAD_TYPE"		bad packet type
 06h "NO_MULTICAST"	interface does not support multicast messages
 07h "CANT_TERMINATE"	this packet driver cannot terminate
 08h "BAD_MODE"		invalid receiver mode
 09h "NO_SPACE"		insufficient space
 0Ah "TYPE_INUSE"	type accessed but never released
 0Bh "BAD_COMMAND"	bad command
 0Ch "CANT_SEND"	packet could not be sent
 0Dh "CANT_SET"		hardware address could not be changed
 0Eh "BAD_ADDRESS"	hardware address has a bad length or format
 0Fh "CANT_RESET"	could not reset interface

(Table 1949)
Values for Packet Driver network interface classes/types:
    Class 01h  Ethernet/IEEE 802.3
	01h 3COM 3C500/3C501
	02h 3COM 3C505
	03h MICOM-Interlan NI5010
	04h BICC Data Networks 4110
	05h BICC Data Networks 4117
	06h MICOM-Interlan NP600
	08h Ungermann-Bass PC-NIC
	09h Univation NC-516
	0Ah TRW PC-2000
	0Bh MICOM-Interlan NI5210
	0Ch 3COM 3C503
	0Dh 3COM 3C523
	0Eh Western Digital WD8003
	0Fh Spider Systems S4
	10h Torus Frame Level
	11h 10Net Communications
	12h Gateway PC-bus
	13h Gateway AT-bus
	14h Gateway MCA-bus
	15h IMC PCnic
	16h IMC PCnic II
	17h IMC PCnic 8-bit
	18h Tigan Communications
	19h Micromatic Research
	1Ah Clarkson "Multiplexor"
	1Bh D-Link 8-bit
	1Ch D-Link 16-bit
	1Dh D-Link PS/2
	1Eh Research Machines 8
	1Fh Research Machines 16
	20h Research Machines MCA
	21h Radix Microsystems EXM1 16-bit
	22h Interlan Ni9210
	23h Interlan Ni6510
	24h Vestra LANMASTER 16-bit
	25h Vestra LANMASTER 8-bit
	26h Allied Telesis PC/XT/AT
	27h Allied Telesis NEC PC-98
	28h Allied Telesis Fujitsu FMR
	29h Ungermann-Bass NIC/PS2
	2Ah Tiara LANCard/E AT
	2Bh Tiara LANCard/E MC
	2Ch Tiara LANCard/E TP
	2Dh Spider Communications SpiderComm 8
	2Eh Spider Communications SpiderComm 16
	2Fh AT&T Starlan NAU
	30h AT&T Starlan-10 NAU
	31h AT&T Ethernet NAU
	32h Intel smart card
	33h Xircom Packet Adapter
	34h Aquila Ethernet
	35h Novell NE1000
	36h Novell NE2000
	37h SMC PC-510
	38h AT&T Fiber NAU
	39h NDIS to Packet Driver adapter
	3Ah Racal-InterLan ES3210
	3Bh General Systems ISDN simulated Ethernet
	3Ch Hewlett-Packard
	3Dh IMC EtherNic-8
	3Eh IMC EtherNic-16
	3Fh IMC EtherNic-MCA
	40h NetWorth EtherNext
	41h Dataco Scanet
	42h DEC DEPCA
	43h C-Net
	44h Gandalf LANLine
	45h Apricot built-in
	46h David Systems Ether-T
	47h ODI to Packet Driver adapter (see also AX=5100h)
	48h AMD Am21110-16
	49h Intel ICD Network controller family
	4Ah Intel ICD PCL2
	4Bh Intel ICD PCL2A
	4Ch AT&T LANPacer
	4Dh AT&T LANPacer+
	4Eh AT&T EVB
	4Fh AT&T StarStation
	50h SLIP simulated ethernet
	51h Racal-Interlan NIA310
	52h Racal-Interlan NISE
	53h Racal-Interlan NISE30
	54h Racal-Interlan NI6610
	55h Ethernet over IP/UDP
	56h ICL EtherTeam 16
	57h David Systems
	58h NCR WaveLAN
	59h Thomas Contrad TC5045
	5Ah Russ Nelson's Parallel Port driver
	5Bh Intell EtherExpress 16
	5Ch IBMTOKEN
	5Dh Zenith Z-Note
	5Eh 3Com 3C509
	5Fh Mylex LNE390
	60h Madge Smart Ringnode
	61h Novell NE2100
	62h Allied Telesis 1500
	63h Allied Telesis 1700
	64h Fujitsu EtherCoupler
    Class 02h  ProNET-10
	01h Proteon p1300
	02h Proteon p1800
    Class 03h  IEEE 802.5/ProNet-4 (without expanded RIFs)
	01h IBM Token-Ring Adapter
	02h Proteon p1340
	03h Proteon p1344
	04h Gateway PC-bus
	05h Gateway AT-bus
	06h Gateway MCA-bus
	07h Madge board
	39h NDIS to Packet Driver adapter
	47h ODI to Packet Driver adapter
    Class 04h  Omninet
	 Class 05h  Appletalk
	01h ATALK.SYS adapter
    Class 06h  Serial Line
	01h Clarkson 8250-SLIP
	02h Clarkson "Multiplexor"
	03h Eicon Technologies
    Class 07h  StarLAN (subsumed by Ethernet class)
    Class 08h  ARCnet
	01h Datapoint RIM
    Class 09h  AX.25
	01h Ottawa PI card
	02h Eicon Technologies
    Class 0Ah  KISS
    Class 0Bh  IEEE 802.3 with 802.2 headers
	types same as for class 01h
    Class 0Ch  FDDI with 802.2 headers
	01h Western Digital
	02h Frontier Technology
    Class 0Dh  Internet X.25
	01h Western Digital
	02h Frontier Technology
	03h Emerging Technologies
	04h The Software Forge
	05h Link Data Intelligent X.25
	06h Eicon Technologies
    Class 0Eh  N.T. LANSTAR (encapsulating DIX Ethernet)
	01h NT LANSTAR/8
	02h NT LANSTAR/MC
    Class 0Fh  SLFP (MIT serial specification)
	01h MERIT
    Class 10h  PPP (Point-to-Point Protocol)
	01h 8250/16550 UART
	02h Niwot Networks synch
	03h Eicon Technologies
    Class 11h  802.5 with expanded RIFs
	types same as for class 3
    Class 12h  reserved for LCP/NCPs
Note: class and type numbers are cleared through FTP Software
--------G-6002-------------------------------
INT 60 - MDEBUG - SET STATUS
	AH = 02h
	DS:SI -> password or a null byte
	ES = new value for the register SE
	DI = new value for the register OF
	CH = new monitor color if nonzero
	CL = new interpreter color if nonzero
	BH = new monitor start line if nonzero
	BL = new interpreter start line if nonzero
	AL = new ASCII code for the hotkey ('A'..'Z', 'a'..'z') if nonzero
	DL = new status of the special keys (SHIFT, ALT, CTRL) for the hotkey
	      if nonzero
	DH = if nonzero, new basic process number for communication with the
	      drivers (DH = multiplex number for the display driver,
	      DH+1 = multiplex number for the command driver or drivers)
Return: AX = return code
	    FFFFh call not allowed
	    FFFEh password is invalid
	    FFFDh display mode is invalid
	    0000h successful, status changed
	    else AL = error reasons (see #1950)
Note:	the values of the registers SE and OF are always changed, the other
	  values are only changed if they are valid
SeeAlso: AH=00h"MDEBUG"
Index:	hotkeys;MDEBUG

Bitfields for MDEBUG error reasons:
Bit(s)	Description	(Table 1950)
 0	invalid monitor start line
 1	invalid interpreter start line
 2	invalid hotkey
 3	invalid process number
 4-7	reserved
--------N-6002-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - ACCESS TYPE
	AH = 02h
	AL = interface class
	BX = interface type
	DL = interface number
	DS:SI -> type
	CX = length of type (0000h for all packets)
	ES:DI -> receiver function (see #1951)
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
	    AX = handle
SeeAlso: AH=03h"FTP"

(Table 1951)
Values packet driver receiver is called with when a packet is received:
	AX = subfunction
	    00h get packet buffer
		CX = buffer length
		DX = lookahead length (v1.10+)
		DS:SI -> lookahead buffer if DX nonzero (v1.10+)
		DI = error flags (class dependent) (v1.10+)
		Return: ES:DI -> packet buffer
				0000h:0000h means throw away packet
			CX = size of buffer (v1.10+), may be smaller than
			      incoming data
	    01h copy completed
		DS:SI -> buffer
		CX = bytes actually copied (v1.10+)
	BX = handle
--------G-6002-------------------------------
INT 60 - SYS_PROF.EXE - TURN PROFILING ON
	AH = 02h
Note:	SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
	  Issue 47
SeeAlso: AH=00h"SYS_PROF",01h"SYS_PROF"
--------G-6003-------------------------------
INT 60 - MDEBUG - POP UP
	AH = 03h
	DS:SI -> password or a null byte
	ES -> new value for the register SE
	DI -> new value for the register OF
Return: AX = return code (see #1952)
SeeAlso: AH=04h"MDEBUG"

(Table 1952)
Values for MDEBUG return code:
 FFFFh	call not allowed
 FFFEh	password is invalid
 FFFDh	display mode is invalid
 else	successful
--------N-6003-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - RELEASE TYPE
	AH = 03h
	BX = handle
Return: CF set on error
	   DH = error code (see #1948)
	CF clear if successful
SeeAlso: AH=02h"FTP"
--------G-6003-------------------------------
INT 60 - SYS_PROF.EXE - GET ADDRESS OF PROFILING TABLE
	AH = 03h
Return: ES:BX -> profiling table
Note:	SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
	  Issue 47
SeeAlso: AH=04h"SYS_PROF"
--------N-6004-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - SEND PACKET
	AH = 04h
	DS:SI -> buffer
	CX = length
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
Note:	the buffer may be modified immediately upon return from this call
SeeAlso: AH=0Bh
--------G-6004-------------------------------
INT 60 - MDEBUG - POP UP
	AH = 04h
	DS:SI -> password or a null byte
Return: AX = return code (see #1952)
SeeAlso: AH=03h"MDEBUG",AH=07h"MDEBUG"
--------G-6004-------------------------------
INT 60 - SYS_PROF.EXE - CLEAR PROFILING TABLE
	AH = 04h
Note:	SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
	  Issue 47
SeeAlso: AH=03h"SYS_PROF"
--------N-6005-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - TERMINATE DRIVER FOR HANDLE
	AH = 05h
	BX = handle (optional for v1.10+)
Return: CF set on error
	   DH = error code (see #1948)
	CF clear if successful
--------G-6005-------------------------------
INT 60 - MDEBUG - GET AND SET MDEBUG FLAGS
	AH = 05h
	DS:SI -> password or a null byte
	BL = new value for the semaphor of MDEBUG
	     00h  enable popup of MDEBUG
	     else disable popup of MDEBUG
Return: AX = return code
	    FFFEh password is invalid
	    FFFDh display mode is invalid
	    else successful
		BL = old value of the semaphor of MDEBUG
		BH = old value of the INT 08h semaphor
		    (this semaphor is always reset after this function)
--------N-6006-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - GET ADDRESS
	AH = 06h
	BX = handle (optional for v1.10+)
	ES:DI -> buffer
	CX = length
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
	    CX = length
Note:	copies the local net address associated with the handle into the buffer
--------G-6006-------------------------------
INT 60 - MDEBUG - GET PASSWORD STATUS
	AH = 06h
Return: AL = status
	    00h password inactive
	    01h password active
--------N-6007-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - RESET INTERFACE
	AH = 07h
	BX = handle (optional for v1.10+)
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
--------G-6007-------------------------------
INT 60 - MDEBUG v1.70+ - GET ACTIVE PART OF MDEBUG
	AH = 07h
Return: AL = active part for the next popup session of MDEBUG:
	    bit 0: the next popup session will start in the interpreter rather
		  than in the monitor
	    bit 1: the next popup session will sart in the online-help
SeeAlso: AH=03h"MDEBUG",AH=04h"MDEBUG"
--------G-6008-------------------------------
INT 60 - MDEBUG - UNUSED
	AH = 08h-FFh
Return: AX = FFFCh
--------N-600A-------------------------------
INT 60 - FTP Packet Driver 1.09+ - HIGH-PERF FUNC - GET PARAMETERS
	AH = 0Ah
Return: CF set on error
	    DH = error code (0Bh) (see #1948)
	CF clear if successful
	    ES:DI -> parameter table (see #1953)

Format of packet driver parameter table:
Offset	Size	Description	(Table 1953)
 00h	BYTE	major revision of packet driver spec driver conforms to
 01h	BYTE	minor revision of packet driver spec
 02h	BYTE	length of this structure in bytes
 03h	BYTE	length of a MAC-layer address
 04h	WORD	maximum transfer unit, including MAC headers
 06h	WORD	buffer size for multicast addr
 08h	WORD	number of receive buffers (one less than back-to-back MTU rcvs)
 0Ah	WORD	number of transmit buffers
 0Ch	WORD	interrupt number to hook for post-EOI processing, 00h=none
--------N-600B-------------------------------
INT 60 - FTP Packet Driver 1.09 - HIGH-PERF FUNC - ASYNCHRONOUS SEND PACKET
	AH = 0Bh
	DS:SI -> buffer
	CX = length of buffer
	ES:DI -> FAR function to call when buffer becomes available (see #1954)
Return: CF set on error
	    DH = error code (0Bh,0Ch) (see #1948)
	CF clear if successful
Notes:	unlike function 04h, the buffer is not available for modification as
	  soon as the call returns; the buffer may be queued by the driver and
	  not processed until later
	this function has been dropped from v1.10+ of the specification and
	  replaced by function 0Ch
SeeAlso: AH=04h"Packet Driver",AH=0Ch"Packet Driver"

(Table 1954)
Values packet driver completion function is called with:
	AX = result
	    00h copy OK
	    nonzero error
	ES:DI -> buffer passed to INT 60/AH=0Bh call
--------N-600C-------------------------------
INT 60 - FTP Packet Driver 1.10+ - HIGH-PERF FUNC - ASYNCHRONOUS SEND PACKET
	AH = 0Ch
	ES:DI -> pointer to IOCB (see #1955)
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
SeeAlso: AH=04h"Packet Driver",AH=0Bh"Packet Driver"

Format of packet driver IOCB:
Offset	Size	Description	(Table 1955)
 00h	DWORD	pointer to buffer
 04h	WORD	length of buffer
 06h	BYTE	flags
		bit 0: packet driver is finished with IOCB
		bit 1: application requests upcall when driver completes
 07h	DWORD	function address for upcall (see #1956)
 0Bh  4 BYTEs	future gather write
 0Fh	BYTE	???
 10h  8 BYTEs	private driver workspace

(Table 1956)
Values completion function is called with:
	ES:DI -> IOCB passed to INT 60/AH=0Ch
--------N-600C-------------------------------
INT 60 - Banyan VINES, 3com - GET STATION ADDRESS
	AH = 0Ch
Return: AL = status
	    00h successful
		ES:SI -> 6-byte station address
	    02h semaphore service is unavailable
--------N-600D-------------------------------
INT 60 - FTP Packet Driver 1.10+ - HIGH-PERF FUNC - DROP PACKET FROM QUEUE
	AH = 0Dh
	ES:DI -> IOCB
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
SeeAlso: AH=0Ch"Packet Driver"
--------N-6011-------------------------------
INT 60 - 3com, 10NET, Banyan VINES - LOCK AND WAIT
	AH = 11h
	AL = drive number or 0
	DX = number of seconds to wait
	ES:SI = Ethernet address or 0
	DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see #1957)
SeeAlso: AH=12h,AH=13h

(Table 1957)
Values for 3com semaphore status:
 00h	successful
 01h	timeout
 02h	server not responding
 03h	invalid semaphore name
 04h	semaphore list is full
 05h	invalid drive ID
 06h	invalid Ethernet address
 07h	not logged in
 08h	write to network failed
 09h	semaphore already logged for this CPU
--------N-6012-------------------------------
INT 60 - 3com, 10NET, Banyan VINES - LOCK
	AH = 12h
	AL = drive number or 00h
	ES:SI = Ethernet address or 0000h:0000h
	DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see also #1957)
	    01h semaphore currently locked by another PC
Note:	unlike function 11h, this function returns immediately
SeeAlso: AH=11h,AH=13h
--------N-6013-------------------------------
INT 60 - 3com, 10NET, Banyan VINES - UNLOCK
	AH = 13h
	AL = drive number or 00h
	ES:SI = Ethernet address or 0000h:0000h
	DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see also #1957)
	    01h semaphore not locked
SeeAlso: AH=11h,AH=12h
--------N-6014-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET RECEIVE MODE
	AH = 14h
	BX = handle (optional for v1.10+)
	CX = mode (see #1958)
Return: CF set on error
		DH = error code (01h,08h) (see #1948)
	CF clear if successful
SeeAlso: AH=15h

(Table 1958)
Values for packet driver receive mode:
 01h	turn off receiver
 02h	receive only packets sent to this interface
 03h	mode 2 plus broadcast packets
 04h	mode 3 plus limited multicast packets
 05h	mode 3 plus all multicast packets
 06h	all packets
 07h	raw mode for serial line only (v1.10+)
--------N-6015-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET RECEIVE MODE
	AH = 15h
	BX = handle (optional for v1.10+)
Return: CF set on error
	    DH = error code (01h) (see #1948)
	CF clear if successful
	    AX = receive mode (see #1958)
SeeAlso: AH=14h
--------N-6016-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET MULTICAST LIST
	AH = 16h
	ES:DI -> multicast list
	CX = length of list in bytes
Return: CF set on error
	    DH = error code (06h,09h,0Eh) (see #1948)
	CF clear if successful
SeeAlso: AH=17h
--------N-6017-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET MULTICAST LIST
	AH = 17h
Return: CF set on error
	    DH = error code (06h,09h) (see #1948 at AX=01FFh)
	CF clear if successful
	    ES:DI -> multicast addresses (do not modify)
	    CX = bytes of multicast addresses currently in use
SeeAlso: AH=16h
--------N-6018-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET STATISTICS
	AH = 18h
	BX = handle (optional for v1.10+)
Return: CF set on error
	    DH = error code (01h) (see #1948)
	CF clear if successful
	    DS:SI -> statistics (see #1959)

Format of packet driver statistics:
Offset	Size	Description	(Table 1959)
 00h	DWORD	packets in
 04h	DWORD	packets out
 08h	DWORD	bytes in
 0Ch	DWORD	bytes out
 10h	DWORD	errors in
 14h	DWORD	errors out
 18h	DWORD	packets dropped
--------N-6019-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET NETWORK ADDRESS
	AH = 19h
	ES:DI -> address
	CX = length of address
Return: CF set on error
	    DH = error code (0Dh,0Eh) (see #1948)
	CF clear if successful
	    CX = length
--------N-601A-------------------------------
INT 60 - FTP Packet Driver v1.10+ - EXTENDED FUNC - SEND RAW BYTES
	AH = 1Ah
	DS:SI -> buffer
	CX = length of buffer
Return: CF set on error
	    DH = error code (see #1948 at AX=01FFh)
	CF clear if successful
SeeAlso: AH=1Ch
--------N-601B-------------------------------
INT 60 - FTP Packet Driver v1.10+ - EXTENDED FUNC - FLUSH RAW BYTES RECEIVED
	AH = 1Bh
Return: CF set on error
	    DH = error code (see #1948)
	CF clear if successful
SeeAlso: AH=1Ch
--------N-601C-------------------------------
INT 60 - FTP Packet Driver v1.10+ - EXTENDED FUNC - FETCH RAW BYTES RECEIVED
	AH = 1Ch
	DS:SI -> buffer
	CX = length of buffer
	DX = timeout in clock ticks
Return: CF set on error
	    DH = error code (see #1948 at AX=01FFh)
	CF clear if successful
		 CX = number of bytes transferred to buffer
SeeAlso: AH=1Ah,AH=1Bh
--------a-60AD-------------------------------
INT 60 - AccessDOS - API
	AH = ADh
	AL = function
	    E1h ???
		Return: AX = ???
	    E2h get configuration
		Return: BX:AX -> configuration data
Program: AccessDOS is a public domain TSR developed at The Trace Research and
	  Development Center which provides extensions for keyboard, mouse,
	  and sound access by the visually, hearing, or motor-control
	  impaired.
Range:	INT 60 to INT 66, selected by scanning for 0000h:0000h vector
--------N-60E9-------------------------------
INT 60 - FTP Packet Driver - Crynwr Software - AUTOSELECT TRANSCEIVER
	AH = E9h
	???
Return: ???
--------!---Section--------------------------
Interrupt List, part 10 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------*-61---------------------------------
INT 61 - reserved for user interrupt
--------b-61---------------------------------
INT 61 - Atari Portfolio - EXTENDED BIOS
Desc:	provides subfunctions such as turning off the machine, accessing
	  internal variables, and mapping memory cards
SeeAlso: INT 60"Atari"
--------b-61---------------------------------
INT 61 - TI Professional PC - FACTORY ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:	the low word of this vector contains the segment of the RAM data area
	  to be used by the expansion ROM at F400h:0000h, and the high word
	  contains the length of the data area; this segment and size are
	  both set to 0000h if no ROM is installed at F400h:0000h
SeeAlso: INT 60"TI Professional PC",INT 62"TI Professional"
SeeAlso: INT 66"TI Professional PC"
--------b-61---------------------------------
INT 61 - HP 95LX System Manager - LOAD DS
SeeAlso: INT 0F"HP 95LX",INT 60"HP 95LX"
--------r-61---------------------------------
INT 61 - JPI TopSPEED Modula-2 v1 - PROCEDURE EXIT TRAP
SeeAlso: INT 60"JPI"
--------d-61---------------------------------
INT 61 - Adaptec and OMTI controllers - DRIVE 0 DATA
Desc:	this vector stores the second four bytes of the parameter table for
	  hard disk 0
SeeAlso: INT 60"Adaptec",INT 62"Adaptec",INT 63"Adaptec"
--------I-61---------------------------------
INT 61 - Sangoma CCIP (CCPOP 3270 resident module) INTERFACE
	BX:DX -> control block
SeeAlso: INT 67"Sangoma"
--------v-61---------------------------------
INT 61 - VIRUS - "SEMTEX"/"Screen Trasher" - INT 21h SUBSTITUTE
Note:	the virus copies the original INT 21h vector into INT 61h
SeeAlso: INT 21h,INT 60"VIRUS",INT 6B"VIRUS"
--------U-61---------------------------------
INT 61 - PC-Magazin - PAGE, SWAPx
	details not yet available
Program: PAGE and SWAPx are utilities from PC-Magazin, the German edition of
	  PC Magazine, issue 47/85, page 31
SeeAlso: INT 66"INCA"
--------N-61---------------------------------
INT 61 - TCPOpen kernel - API
	ES:BX -> request packet (see #1960)
Program: TCPOpen is a TCP/IP protocol stack by Lanera
Range:	INT 60 to INT 7F, selected by configuration file
Note:	there does not appear to be an installation check, though function
	  FFFFh can be used to verify that the software is indeed functioning

Format of TCPOpen request packet:
Offset	Size	Description	(Table 1960)
 00h  8 BYTEs	???
 08h	WORD	function number (0000h-001Ah or FFF9h-FFFFh)
 0Ah	WORD	???
 0Ch  2 BYTEs	???
 0Eh	WORD	(ret) return code
 10h  2 BYTEs	???
 12h	WORD	???
 14h	WORD	(ret) 0001h if requested function complete
 16h	WORD	(ret) ???
 18h  6 BYTEs	???
 1Eh	DWORD	-> ???
 22h	WORD	??? or 0000h
 24h	WORD	(ret) ???
SeeAlso: #1961

(Table 1961)
Call TCPOpen Function FFFFh: installation verification
Return: offset 10h = BEEFh
	offset 14h = 0001h
	offset 24h = ???
Index:	installation check;TCPOpen kernel
--------N-61---------------------------------
INT 61 - XFS v1.76 - XFSKRNL.EXE - API
	AX = function
	    8000h installation check???
		Return: AX = 0000h
	    8001h ???
		ES:DI -> DWORD ???
		Return: AX = status???
	    8002h ???
		BX = ???
		CX = ???
		ES:DI -> ???
		Return: AX = status???
	    8003h ???
		BX = ???
		CX = ???
		ES:DI -> ???
		Return: AX = status???
	    8004h ???
		BX = ???
		Return: AX = status???
		 8005h wait until ???
		Return: DX:AX = ???
	    8006h get ???
		Return: DX:AX -> ??? record
	    8007h set IP address??? (or htonl/ntohl)
		DX:BX = IP address???
		Return: DX:AX = byte-swapped IP address
	    8008h set IP address??? (or htonl/ntohl)
		DX:AX = IP address???
		Return: DX:AX = byte-swapped IP address
	    8009h ???
		ES:DI -> ???
		Return: DX:AX = ???
	    800Ah ???
	    800Bh ???
		Return: DX:AX = ???
	    800Ch ???
	    800Dh ???
	    800Eh ???
	    800Fh ???
	    8010h get ??? record
		Return: DX:AX -> ??? record
	    8011h ???
		 8012h ???
		BX = ???
		Return: DX:AX = ???
	    8013h get ??? record
		Return: DX:AX -> ??? record
	    8014h ???
		ES:DI -> ???
		Return: nothing
	    8015h get ??? record
		Return: DX:AX -> 8-byte ??? record
	    8016h get ??? record
		Return: DX:AX -> 6-byte ??? record
	    8017h ???
		ES:DI -> ???
		Return: DX:AX = ???
	    8018h get ??? record
		Return: DX:AX -> ??? record
	    8019h get ??? record
		Return: DX:AX -> 14-byte ??? record
	    801Ah get ??? record
		Return: DX:AX -> ??? record (max 98 bytes)
	    801Bh get ??? record
		Return: DX:AX -> ??? record
		 801Ch ???
		Return: nothing
	    801Dh get ???
		Return: AL = ???
	    801Eh ???
		Return: AX = ???
	    801Fh uninstall
		Return: AX = status
			    0000h successful
			    other interrupt which could not be released
	AX = other
		Return: AX:BX = ??? (0000h:0000h by default)
Program: XFS is a shareware Network File System client by Robert Juhasz
Range:	INT 60 to INT 65, selected by scanning for two consecutive free
	  vectors and hooking the first
SeeAlso: INT 62"XFS"
--------N-61---------------------------------
INT 61 - FTP Software PC/TCP - TCP/IP TSR System Call interface
	AH = system call number (see also entries below)
	    01h "pkt_alloc" (v2.05; this is "net_config" in v2.1+)
	    02h "pkt_free" (v2.05; this is "get_kernel_info" in v2.1+)
Return: CF clear if successful
	CF set on error
		 AL = basic error (see #1962)
	    AH = suberror number (see #1963,#1964)
Range:	INT 20h to INT E0h, selected by configuration
Notes:	the installation check consists of testing for the signature "TCPTSR"
	  three bytes beyond the start of the interrupt handler
BUG:	the SLIP kernel for v2.05 bounds-checks the wrong register, so values
	  greater than 54h in AH may crash the system.	Other kernels may have
	  this bug as well.
SeeAlso: INT 61/AH=00h"PC/TCP",INT 61/AH=2Ah,INT 61/AH=54h
Index:	installation check;PC/TCP

(Table 1962)
Values for PC/TCP error code:
 00h "NET_NOERR" successful
 01h "NET_ERR_INUSE" protocol or socket already in use
 02h "NET_DOS_ERR" MS-DOS error (returned as suberror code in AH)
 03h "NET_ERR_NOMEM" out of memory
 04h "NET_ERR_NOTNETCONN" not a network descriptor
 05h "NET_ERR_ILLEGALOP" invalid operation on given kind of network descriptor
 06h "NET_ERR_BADPKT" illegal or corrupted packet
 07h "NET_ERR_NOHOST" no host bound to specified connection
 08h "NET_ERR_CANTOPEN" unable to open file
 09h "NET_ERR_NET_UNREACHABLE" network is unreachable
 0Ah "NET_ERR_HOST_UNREACHABLE" host is unreachable (see subcodes below)
 0Bh "NET_ERR_PROT_UNREACHABLE" protocol is unreachable
 0Ch "NET_ERR_PORT_UNREACHABLE" port is unreachable
 0Dh "NET_ERR_TIMEOUT" operation timed out
 0Eh "NET_ERR_HOSTUNKNOWN" unable to resolve host name
 0Fh "NET_ERR_NOSERVERS" no name servers configured
 10h "NET_ERR_SERVER_ERR" bad reply from name server
	Subcodes: 0= no error, 1 = Host unreachable
 11h "NET_ERR_BADFORMAT" bad format for IP address or field in IP address struc
			is zero
 12h "NET_ERR_BADARG" invalid argument
 13h "NET_ERR_EOF" foreign host closed its end of connection
 14h "NET_ERR_RESET" connection has been reset
 15h "NET_ERR_WOULDBLOCK" recv() call was done on a non-blocking connection
			with no data available
 16h "NET_ERR_UNBOUND" insufficient resources to do operation
 17h "NET_ERR_NODESC" could not allocate network descriptor
 18h "NET_ERR_BADSYSCALL" invalid/unsupported kernel call
 19h "NET_ERR_CANTBROADCAST" unable to broadcast
 1Ah "NET_ERR_NOTESTAB" operation illegal because connection not established
 1Bh kernel busy, try again later
 1Ch "NET_ERR_ICMPMESG" an ICMP message was received (not on streams)
	(see subcodes below)
---v2.1+---
 1Dh "NET_ERR_TERMINATING" internal kernel fatal error
 1Eh "NET_ERR_TAG_LOCKED" not allowed to set this tag (net_config)
 1Fh "NET_ERR_BAD_INTERFACE" non existent interface specified
 20h "NET_ERR_BADCONFIG" kernel cannot run - bad configuration
 21h "NET_ERR_EMM" expanded memory error
 22h "NET_ERR_CANT_SHUTDOWN" cant unload kernel (multitasker running)
 23h "NET_ERR_PARKED_IN" unable to unhook DOS interrupt
 24h "NET_ERR_NOQIOS" ran out of resources; try again later
 25h "NET_ERR_WOULD_TRUNCATE" datagram too large and "don't truncate" was set

(Table 1963)
Values for subcodes of PC/TCP error 0Ah "NET_ERR_HOST_UNREACHABLE":
 00h	no error
 01h	host unreachable
 02h	ARP failed
 03h	hardware failure
 04h	link failure
 05h	no route
 06h	gateway down

(Table 1964)
Values for subcodes of PC/TCP error 1Ch "NET_ERR_ICMPMESG":
 07h	unrecognised
 08h	can't fragment
 09h	srcr_fail
 0Ah	source quench
 0Bh	time exceeded
 0Ch	parameter problem
 0Dh	admin_prohib. see also code 0Ah
--------N-6100-------------------------------
INT 61 U - PC/TCP kernel v2.05+ - GET DEBUG INFORMATION
	AH = 00h
	DS:SI -> 216-byte buffer for network debugging information (see #1965)
Return: CF clear
	AX = 0000h
	buffer filled
Notes:	this call is not documented by FTP, Inc. for any version
	most of the information returned by this call is available via the
	  documented get_kernel_info or net_info commands.
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=2Ah"PC/TCP"

Format of network debugging information:
Offset	Size	Description	(Table 1965)
 00h	DWORD	number of interrupts
 04h	DWORD	receive buffer low-water mark
 08h	DWORD	transmit buffer low-water mark
 0Ch	DWORD	number of packets received
 10h	DWORD	number of packets transmitted
 14h	DWORD	total receive errors
 18h	DWORD	total transmit errors
 1Ch  4 BYTEs	???
 20h	DWORD	receive resets
 24h	DWORD	transmit resets
 28h	DWORD	number of "runts" received
 2Ch	DWORD	number of alignment errors on received packets
 30h	DWORD	number of CRC errors on received packets
 34h	DWORD	number of parity errors on received packets
 38h	DWORD	number of receive overflow errors
 3Ch	DWORD	number of oversized packets received
 40h	DWORD	number of packets lost due to lack of buffers
 44h	DWORD	receive timeouts
 48h 32 BYTEs	???
 68h	DWORD	number of transmit collisions
 6Ch	DWORD	number of transmit timeouts
 70h	DWORD	number of transmit underflows
 74h	DWORD	number of lost "crs" on transmit
 78h	DWORD	number of times heartbeat failed on transmit
 7Ch 24 BYTEs	???
 94h	WORD	free packet buffers
 96h	WORD	total packet buffers
 98h	WORD	minimum number of packet buffers free since kernel started
 9Ah 24 BYTEs	???
 B2h	DWORD	pointer to TCP connection list???
 B6h	DWORD	pointer to IP routing table???
 BAh 30 BYTEs	???
--------N-6100-------------------------------
INT 61 - Banyan VINES - CALL A SERVICE
	AH = 00h
	AL = service ID (1..16)
	other registers vary by service
Return: AX = status (see #1968)
Desc:	Calls an adapter driver or redirector service. The service handler
	  pointers are stored at offset 0010h in the code segment of the
	  BANV interrupt handler (see #1966).
Note:	Banyan can use any interrupt from 60h through 66h.  The Banyan
	  interrupt handler is identified by the string "BANV" in the four
	  bytes immediately preceding the interrupt handler
SeeAlso: AH=01h,AH=03h

Format of the BANV code segment (revision 5.53):
Offset	Size	Description	(Table 1966)
 00h 16	BYTEs	reserved
 10h 16	DWORDs	far pointers to the service handlers (0 = not installed)
 50h	DWORD	far pointer to last called service
 54h	WORD	VINES revision
 56h	DWORD	VINES revision long
 5Ah	WORD	VINES revision (lower bound)
 5Ch	DWORD	VINES revision (lower bound) long
 60h	WORD	VINES revision (upper bound)
 62h	DWORD	VINES revision (upper bound) long
 66h	WORD	end of PCCONFIG area
 68h	WORD	start of PCCONFIG area
 6Ah  4	BYTEs	BANV interrupt identifier ("BANV")
 6Eh  N	BYTEs	BANV interrupt service
SeeAlso: #1967
--------V-610000-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ZOOM DISPLAY
	AX = 0000h
	BX = zoom factor (0-7)
Desc:	zooms the display based on the given zoom factor
Notes:	INT 61h is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0001h"OPTIMA",AX=0002h"OPTIMA",AX=0005h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"
--------N-610001-----------------------------
INT 61 - Banyan VINES - INTERNAL COMMUNICATION
	AX = 0001h
	BX -> internal communications control block (see #1967)
	DS = 0001h
	CX = caller's data segment
	DX = caller's data segment
Return: AX = status
	    0000h successful
	    00A5h resource not available
Range:	INT 60 to INT 66
Notes:	This service is handled by the adapter driver
	The existence of the following subfunctions has been verified:
	  0001h, 0002h, 0003h, 0004h, 0005h, 0008h, 0009h, 000Ah, 000Bh, 000Ch
	  0012h, 0013h, 0015h, 0016h

Format of internal communications control block:
Offset	Size	Description	(Table 1967)
 00h	WORD	subfunction number
 02h	WORD	magic number (FEFEh)
 04h	WORD	??? result, should be set to 0 before calling
 06h	WORD	??? reserved
 08h	WORD	??? caller's code segment if function 000Bh, 0 else
 0Ah	WORD	??? main input/output parameter
 0Ch	WORD	??? some output parameter
 0Eh	WORD	??? some input/output parameter
SeeAlso: #1966
--------N-610001SF0001-----------------------
INT 61 - Banyan VINES - "Sosock" - OPEN COMMUNICATIONS SOCKET
	AX = 0001h subfn 0001h
	DS:DX -> communications control block (function 0001h) (see #1969)
Return: AX = status (0000h-0002h,0098h,009Eh-00A2h) (see #1968)
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0002h,AX=0001h/SF=0008h,INT 15/AX=DE2Eh

(Table 1968)
Values for VINES status:
 0000h	successful
 0001h	service not installed
 0002h	invalid service ID
 0003h	invalid function
 0004h-000Ah reserved for BANV interface errors
 0097h	invalid socket identifier
 0098h	resource already in use
 009Bh	destination node unreachable
 009Ch	message overflow
 009Dh	destination socket nonexistent
 009Eh	address family does not exist
 009Fh	socket type does not exist
 00A0h	protocol does not exist
 00A1h	no more sockets available
 00A2h	no more buffer space available
 00A3h	timeout
 00A5h	resource not available
 00A6h	internal communication failure
 00B1h	resource disconnect

Format of VINES control block to open socket:
Offset	Size	Description	(Table 1969)
 00h	WORD	0001h
 02h	WORD	pointer to argument block
 04h	WORD	error return code
 06h  4 BYTEs	reserved
SeeAlso: #1970

Format of VINES argument block for opening socket:
Offset	Size	Description	(Table 1970)
 00h	WORD	pointer to 2-byte buffer for socket identifier
 02h	WORD	address family
		0003h Banyan
 04h	WORD	socket type
		in address family 0003h
		    0001h IPC socket
		    0002h SPP socket
 06h	WORD	protocol number
		FFFFh default
 08h	WORD	pointer to 16-byte buffer for socket address (see #1971)
 0Ah	WORD	local port number
		0000h if service should assign transient port number
		0001h to 01FFh well-known port number (assigned by Banyan)
SeeAlso: #1969

Format of Banyan VINES IPC port:
Offset	Size	Description	(Table 1971)
 00h	WORD	address family (always 0003h for Banyan ports)
 04h  4 BYTEs	network number (server's serial number)
 06h	WORD	subnet number  (0001h = server, 8000h-FFFEh = PC)
 08h	WORD	port ID (0001h-01FFh for "well-known" ports)
 0Ah	BYTE	hop count
 0Bh  5 BYTEs	filler
SeeAlso: #1976
--------N-610001SF0002-----------------------
INT 61 - Banyan VINES - "Sosend" - INITIATE OUTPUT EVENT
	AX = 0001h subfn 0002h
	DS:DX -> communications control block (function 0002h) (see #1972)
Return: AX = status (0000h-0002h,0097h,009Bh-009Dh,00A2h,00A3h,00B1h)
	    (see #1968)
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,AX=0001h/SF=0005h

Format of VINES control block for subfunction 0002h:
Offset	Size	Description	(Table 1972)
 00h	WORD	0002h
 02h	WORD	pointer to argument block (see #1973)
 04h	WORD	error return code (0000h,0097h,00A2h,00A3h,00A5h,00A6h,00B1h)
		(see #1968)
 06h  4 BYTEs	reserved
SeeAlso: #1977

Format of VINES argument block for subfunction 0002h:
Offset	Size	Description	(Table 1973)
 00h	WORD	routine metric
 02h	WORD	error return code
 04h	WORD	socket identifier
 06h	WORD	pointer to send buffer (see #1975)
 08h	WORD	length of send buffer
 0Ah	WORD	message request flags (see #1974)
 0Ch 16 BYTEs	socket address (see #1976)
 1Ch	WORD	timeout value in multiples of 200ms
 1Eh	WORD	connection identifier
 20h	WORD	type of request
		0001h send message
		0002h establish a virtual connection
		0003h terminate a virtual connection
SeeAlso: #1972,#1978

Bitfields for message request flags:
Bit(s)	Description	(Table 1974)
 0	async request
 1	reliable message
 2	flush receive buffer on overflow
 3	end of user message received
 4	vectored request (if set, send buffer contains buffer descriptors)
 5	connection-specific receive
 6	change to connection-specific receive mode
SeeAlso: #1973,#1978

Format of buffer descriptor:
Offset	Size	Description	(Table 1975)
 00h	WORD	data segment
 02h	WORD	buffer pointer
 04h	WORD	buffer length
 06h	WORD	character count
SeeAlso: #1973

Format of VINES socket address for unreliable datagrams:
Offset	Size	Description	(Table 1976)
 00h	WORD	0003h	  address family
 02h	DWORD	FFFFFFFFh network number
 06h	WORD	FFFFh	  subnet number
 08h	WORD		  local port number
 0Ah	BYTE	00h-0Fh	  hop count
 0Bh  5 BYTEs	0000h	  filler
SeeAlso: #1971
--------N-610001SF0003-----------------------
INT 61 - Banyan VINES - "Sorec" - RECEIVE INPUT EVENT NOTIFICATION
	AX = 0001h subfn 0003h
	DS:DX -> communications control block (function 0003h) (see #1977)
Return: AX = status (00-0Ah,97h,A2h,A3h) (see #1968)
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0002h

Format of VINES control block for subfunction 0003h:
Offset	Size	Description	(Table 1977)
 00h	WORD	0003h
 02h	WORD	pointer to argument block (see #1978)
 04h	WORD	error return code (0000h,0097h,00A2h,00A3h,00A5h,00A6h,00B1h)
		(see #1968)
 06h  4 BYTEs	reserved
SeeAlso: #1972,#1978,#1980

Format of VINES argument block for subfunction 0003h:
Offset	Size	Description	(Table 1978)
 00h	WORD	character count
 02h	WORD	error return code
 04h	WORD	socket identifier
 06h	WORD	pointer to receive buffer (see #1979)
 08h	WORD	length of receive buffer
 0Ah	WORD	message request flags (see #1974)
 0Ch 16 BYTEs	socket address (see #1971)
 1Ch	WORD	timeout value in multiples of 200ms
 1Eh	WORD	connection identifier
 20h	WORD	type of response
		0001h message received
		0002h virtual connection established
		0003h virtual connection terminated
SeeAlso: #1977,#1981

Format of buffer descriptor:
Offset	Size	Description	(Table 1979)
 00h	WORD	data segment
 02h	WORD	buffer pointer
 04h	WORD	buffer length
 06h	WORD	character count
SeeAlso: #1978
--------N-610001SF0004-----------------------
INT 61 - Banyan VINES - "Soclose" - CLOSE A SOCKET
	AX = 0001h subfn 0004h
	DS:DX -> communications control block (function 0004h) (see #1980)
Return: AX = status (0000h-000Ah,0097h) (see #1968)
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,INT 15/AX=DE2Eh

Format of VINES control block to close socket:
Offset	Size	Description	(Table 1980)
 00h	WORD	0004h
 02h	WORD	pointer to argument block (see #1981)
 04h	WORD	error return code (see #1968)
 06h  4 BYTEs	reserved
SeeAlso: #1977,#1983

Format of VINES argument block for closing socket:
Offset	Size	Description	(Table 1981)
 00h	WORD	socket identifier
SeeAlso: #1978,#1980,#1984
--------N-610001SF0005-----------------------
INT 61 - Banyan VINES - "Sowait" - WAIT FOR ASYNCHRONOUS EVENT COMPLETION
	AX = 0001h subfn 0005h
	DS:DX -> communications control block (see #1983)
Return: AX = status (0000h-000Ah,00A2h,00A3h) (see #1982)
Desc:	returns results for all asynchronous operations invoked from the
	  data segment used for this call
Range:	INT 60h to INT 66h
Notes:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0002h,AX=0001h/SF=0009h

(Table 1982)
Values for VINES function status:
 0000h	successful
 0001h	service not installed
 0002h	invalid service ID
 0003h-000Ah reserved for BANV interface errors
 00A2h	no more buffer space available
 00A3h	timeout event

Format of VINES control block for subfunction 0005h:
Offset	Size	Description	(Table 1983)
 00h	WORD	0005h
 02h	WORD	pointer to argument block (see #1984)
 04h	WORD	error return code
 06h  4 BYTEs	reserved
SeeAlso: #1980,#1985

Format of VINES argument block for subfunction 0005h:
Offset	Size	Description	(Table 1984)
 00h	WORD	pointer to WORD event pointer
 02h	WORD	timeout in multiples of 200ms, FFFFh = infinite
SeeAlso: #1981,#1983
--------N-610001SF0008-----------------------
INT 61 - Banyan VINES - "Sosession" - REGISTER APPLICATION WITH COMM SERVICE
	AX = 0001h subfn 0008h
	DS:DX -> communications control block (function 0008h) (see #1985)
Return: AX = status
	    0000h  successful
	    00A2h  no more buffer space available
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,AX=0001h/SF=0009h

Format of VINES control block for subfunction 0006h:
Offset	Size	Description	(Table 1985)
 00h	WORD	0008h
 02h	WORD	process type
		0001h transient process
		0002h resident process
 04h	WORD	error return code
 06h  4 BYTEs	reserved
SeeAlso: #1983,#1986
--------N-610001SF000B-----------------------
INT 61 - Banyan VINES - "Soint" - SET USER COMPLETION FUNCTION
	AX = 0001h subfn 000Bh
	DS:DX -> communications control block (function 000Bh) (see #1986)
Return: AX = status (00h-0Ah,A2h) (see #1982)
Range:	INT 60h to INT 66h
Note:	The Banyan interrupt handler is identified by the string "BANV" in
	  the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0005h,AX=0001h/SF=0008h

Format of VINES control block for subfunction 000Bh:
Offset	Size	Description	(Table 1986)
 00h	WORD	000Bh
 02h	WORD	pointer to argument block (see #1987)
 04h	WORD	error return code (see #1968)
 06h  2 BYTEs	reserved
 08h	WORD	user CS register
SeeAlso: #1985

Format of VINES argument block for subfunction 000Bh:
Offset	Size	Description	(Table 1987)
 00h	WORD	pointer to user interrupt function (see #1988)
 02h	WORD	pointer to user stack
 04h	WORD	initial timeout value in multiples of 200ms, FFFFh = infinite
SeeAlso: #1987

(Table 1988)
Values FAR user function is invoked with:
	SS = DS = ES = segment of control block
	STACK:	DWORD	return address
		WORD	argument pointer (sosend or sorec argument block)
		WORD	error return code
			0000h argument pointer is valid
			00A3h timeout
--------V-610001-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - CENTER ZOOM WINDOW
	AX = 0001h
	BX = X coordinate to center
	CX = Y coordinate to center
Desc:	Positions the zoom window such that the specified window-relative
	  coordinates appear as close as possible to the center of the
	  display.  Useful for scrolling and panning.
Range:	unknown
Notes:	INT 61h is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0002h"OPTIMA",AX=0005h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"
--------I-610002-----------------------------
INT 61 - Banyan VINES - 3270 INTERFACE
	AX = 0002h
	BH = function number (see #1989)
	DS:CX -> argument block (except BH=00h,1Ah) (see #1991)
Return: AX = status (see #1990)
Notes:	Either 3270/SNA or 3270/BSC interface may use AX=0002h, depending on
	  which is loaded first.  The other interface will use AX=000Ah
	Status codes greater than 63h indicate an inconsistency in the 3270/SNA
	  or 3270/BSC resident driver, which must be reloaded by the user

(Table 1989)
Values for VINES 3270 interface function number:
 00h "pi2reset"	 reset 3270/SNA or 3270/BSC driver
 02h "pi2bsc"	 (3270/BSC only)
 03h "pi2get"	 get information stored in 3270 resident driver
 04h "pi2put"	 store information in 3270 resident driver
 05h "pi2gcur"	 get current screen position
 07h "pi2sdat"	 send data keystroke
 08h "pi2scom"	 send command keystroke
 0Ah "pi2field"	 get field info for arbitrary screen positions
 0Fh "pi2stat"	 get logical unit/device status
 12h "pi2nlus"	 determine logical unit/device assignment
 13h "pi2gate"	 specifies comm port address to gateway service
 14h "pi2attach" attach a logical unit/device
 15h "pi2sdev"	 save logical unit/device info in resident driver
		(not supported in >3.0)
 16h "pi2gdev"	 get device information (not supported in >3.0)
 17h "pi2luinfo" get info about specific logical unit/device
 18h "pi2gerr"	 get finer error detail
 19h "pi2dhold"	 (3270/SNA only)  holds a 3270 device
 1Ah "pi2shut"	 release memory-resident module
 1Ch "pi2sprof"	 save profile info in res driver (not supp in >3.0)
 1Dh "pi2gprof"	 get prevsly stored profile info (not supp in >3.0)

(Table 1990)
Values for VINES 3270 status:
 0000h	successful
 000Bh	invalid parameter or data does not fit data area
 000Ch	another code path currently active in resident driver
 000Dh	operation currently not allowed
 0032h	encountered connection disconnect error
 0033h	encountered "sosend" completion error
 0034h	encountered "sosend" communication error
 0035h	attach request refused.	extended error info via "pi2gerr":
	01h resource unavailable
	02h invalid type
	03h version mismatch
	04h invalid logical unit number
	05h error during ARL processing
	06h no access for user
 0071h	encountered "sosock" error
 0072h	encountered unrecognizable error
 0073h	encountered "sowait" error (extended info via "pi2gerr")
 0074h	encountered invalid type-of-request on "sowait"
 0075h	encountered "sorec" error (extended info via "pi2gerr")
 0076h	encountered "sorec" completion error (ext info via "pi2gerr")
 0077h	encountered connection request
 0078h	encountered unrecognizable data
 0079h	encountered unknown connection ID (ext info via "pi2gerr")
SeeAlso: #1968

Format of argument block for BH=03h,04h:
Offset	Size	Description	(Table 1991)
 00h	WORD	size of data area (max 256)
 02h  N BYTEs	data area
SeeAlso: #1992,#1993,#1994

Format of argument block for BH=05h:
Offset	Size	Description	(Table 1992)
 00h	WORD	logical unit/device number
 02h	WORD	pointer to WORD buffer for cursor index
 04h	WORD	pointer to BYTE buffer for current field attribute
SeeAlso: #1991,#1993,#1994

Format of argument block for BH=07h:
Offset	Size	Description	(Table 1993)
 00h	WORD	logical unit/device number
 02h	WORD	ASCII data byte
 04h	WORD	pointer to WORD count of characters which will need updating
SeeAlso: #1991,#1992,#1994

Format of argument block for BH=08h:
Offset	Size	Description	(Table 1994)
 00h	WORD	logical unit/device number
 02h	WORD	3270 keystroke (see #1995)
SeeAlso: #1991,#1992,#1993,#1996

(Table 1995)
Values for 3270 keystroke:
 0000h	Enter
 0001h	Clear
 0002h	PA1
 0003h	PA2
 0004h	PA3
 0005h	PF1
 ...
 001Ch	PF24
 001Dh	CSELECT (cursor select)
 001Eh	Insert
 001Fh	Delete
 0020h	EOField
 0021h	EINPUT (erase input)
 0022h	Reset
 0023h	Attention
 0024h	SysReq
 0025h	Duplicate
 0026h	Fieldmark
 0027h	Home
 0028h	NextLine
 0029h	Tab
 002Ah	BackTab
 002Bh	cursor up
 002Ch	cursor down
 002Dh	cursor right
 002Eh	cursor left
 002Fh	double cursor right
 0030h	double cursor left
 0031h	PRINT
 0032h	CANCEL
 0033h	Backspace	

Format of argument block for BH=0Ah:
Offset	Size	Description	(Table 1996)
 00h	WORD	logical unit/device number
 02h	WORD	screen index
 04h	WORD	pointer to WORD buffer for field length
 06h	WORD	pointer to WORD buffer for offset in screen of field start
SeeAlso: #1994,#1997

Format of argument block for BH=0Fh:
Offset	Size	Description	(Table 1997)
 00h	WORD	logical unit/device number
 02h	WORD	clear mask (clear these bits of status after returning status)
 04h	WORD	pointer to WORD buffer for device status (see #1998)
SeeAlso: #1996,#1999

Bitfields for Banyan 3270 device status:
Bit(s)	Description	(Table 1998)
 10	status modified
 9	buffer modified
 8	set cursor
 5	sound alarm
 1-0	size of print line for printer logical units
	00  unformatted line
	01  40-character line
	10  64-character line
	11  80-character line

Format of argument block for BH=12h:
Offset	Size	Description	(Table 1999)
 00h	WORD	pointer to WORD buffer for number of logical units or devices
 02h	WORD	pointer to WORD buffer for version number
 04h	WORD	pointer to 64-byte buffer for logical unit/device list
SeeAlso: #1997,#2000

Format of argument block for BH=13h:
Offset	Size	Description	(Table 2000)
 00h 16 BYTEs	communications port address (see #1971)
SeeAlso: #1999,#2001

Format of argument block for BH=14h:
Offset	Size	Description	(Table 2001)
 00h	WORD	logical unit/device number
		0000h attach any free device of the specified type
 02h	WORD	logical unit/device type
		(3270/SNA) 01h, 02h, or 03h
		(3270/BSC) 02h display
		(3270/BSC) 03h printer
 04h	WORD	pointer to WORD buffer for attached logical unit/device number
SeeAlso: #2000,#2002

Format of argument block for BH=16h:
Offset	Size	Description	(Table 2002)
 00h	WORD	pointer to 18-byte buffer for device block (see #2007)
		first WORD must be set to desired logical unit/device number
SeeAlso: #2001,#2003

Format of argument block for BH=17h:
Offset	Size	Description	(Table 2003)
 00h	WORD	logical unit/device number
 02h	WORD	pointer to information block in caller's DS (see #2008)
SeeAlso: #2002,#2004

Format of argument block for BH=18h:
Offset	Size	Description	(Table 2004)
 00h	WORD	pointer to WORD buffer for major error code
 02h	WORD	pointer to WORD buffer for minor error code
SeeAlso: #2003,#2005

Format of argument block for BH=19h:
Offset	Size	Description	(Table 2005)
 00h	WORD	logical unit/device number
SeeAlso: #2004,#2006

Format of argument block for BH=1Ch,1Dh:
Offset	Size	Description	(Table 2006)
 00h	WORD	pointer to profile block in caller's DS (see #2011)
SeeAlso: #1991,#2005

Format of device block, argument block for BH=15h:
Offset	Size	Description	(Table 2007)
 00h	WORD	logical unit/device number
 02h	WORD	logical unit/device type
 04h	WORD	display model number
 06h	WORD	numeric checking
 08h	WORD	status line
 0Ah	BYTE	unprotected normal field attribute
 0Bh	BYTE	unprotected intensified field attribute
 0Ch	BYTE	protected normal field attribute
 0Dh	BYTE	protected intensified field attribute
 0Eh	WORD	reserved
 10h	WORD	printer port number

Format of information block:
Offset	Size	Description	(Table 2008)
 00h	WORD	device model number
 02h	DWORD	screen buffer pointer
 06h	DWORD	status line pointer (see #2009)
 0Ah	DWORD	reserved

Format of Banyan VINES 3270 status line:
Offset	Size	Description	(Table 2009)
 00h	BYTE	comm line status
		00h inactive
		01h active
 01h	BYTE	activation level
		01h physical unit activated
		02h logical unit also activated
		03h session is bound
 02h	BYTE	data traffic state
		00h inactive
		01h active
 03h	BYTE	screen ownership
		00h SLU->PLU session owns screen
		01h SLU->SSCP session owns screen
 04h	BYTE	keyboard status (see #2010)
 05h	BYTE	insert mode
		01h if in insert mode
 06h	BYTE	numeric
		01h if current screen buffer is numeric only
 07h	BYTE	printer status
		00h printer not assigned
		01h printer is inactive
		02h printer error
		03h currently printing
		04h printer is busy
		05h printer is very busy
 08h	BYTE	printer assignment
 09h	BYTE	maximum size of network name
 0Ah  N BYTEs	ASCIZ network name
	BYTE	maximum size of message window
      M BYTEs	null-terminated message window
	BYTE	code set
		00h EBCDIC
		01h ASCII
      M BYTEs	extended attributes
		01h extended attributes are in effect (stored at screen+1920)
		    each extended attribute specifies
		    bits 0,1: 00=normal, 01=blink, 10=reverse, 11=underscor
		    bits 2-4: 000=default,001=blue,010=red,011=pink,
			      100=green,101=turquoise,110=yellow,111=white
	BYTE	extended color
		01h other than base color is in effect

(Table 2010)
Values for Banyan VINES 3270 keyboard status:
 00h	UNLOCK - ready to accept data
 01h	TIME - aid was struck
 02h	SYSTEM - received response no restore
 03h	FUNCTION - unavailable keyboard function
 04h	INPUT - not currently used
 05h	ENDFIELD - field filled in insert mode
 06h	PROTECTED - attempt to enter in protected field
 07h	NUMERIC - attempt to enter in numeric field
 08h	PROGRAM - error in outbound data stream

Format of Banyan VINES 3270 profile block:
Offset	Size	Description	(Table 2011)
 00h 64 BYTEs	gateway service name
 40h 16 BYTEs	gateway comm port address
 50h	WORD	primary logical unit number
 52h	WORD	secondary logical unit type
 54h	WORD	secondary logical unit number
 56h	WORD	printer assignment
 58h 50 BYTEs	keyboard definitions filename
--------V-610002-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - END ZOOM
	AX = 0002h
Desc:	switches off zoom and returns window to its original state
Range:	unknown
Notes:	INT 61h is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610003SF00-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INIT USER BUFFER PTR INFO
	AX = 0003h subfn 00h
	DS:BX -> argument block (see #2013)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=08h,AX=0003h/SF=0Dh

(Table 2012)
Values for VINES function status:
 0000h	successful
 000Bh	invalid session ID
 000Ch	session not active
 000Dh	invalid request type
 000Eh	invalid parameters
 000Fh	out of heap space
 0010h	timeout on send
 0011h	Banyan communications error
 0012h	session not waiting for host
 0013h	session is active
 0014h	duplicate suspend session request
 0015h	no session suspended
 0016h	ring data buffer full
 0017h	printer error encountered
 0018h	Banyan communications error
 0019h	unable to make connection
 001Ah	no ring buffer specified at startup
 001Bh	service is down
 001Ch	invalid service name
 001Dh	service is closed
 001Eh	invalid connection name
 001Fh	max session limit reached for service
 0020h	access rights list for connection/dialout does not include this user
 0021h	service not responding
 0022h	missing telephone number
SeeAlso: #1968,#2016

Format of VINES argument block:
Offset	Size	Description	(Table 2013)
 00h	BYTE	session ID (00h)
 01h	BYTE	00h (func "initialize user buffer pointer information area")
 02h	WORD	-> user buffer ptr info area in caller's current DS (see #2014)

Format of user buffer ptr info area:
Offset	Size	Description	(Table 2014)
 00h	WORD	flags
		0000h don't read interface's data buffer
		0001h read data buffer
 02h	DWORD	pointer to ring buffer
 06h	WORD	length of ring buffer
 08h	WORD	ring buffer offset to last byte read by caller
 0Ah	DWORD	pointer to WORD containing offset of last byte
		  in ring buffer filled
 0Eh	DWORD	pointer to screen buffer
 12h	DWORD	pointer to field containing cursor position
 16h	DWORD	pointer to terminal status area (see #2015)

Format of VINES terminal status area:
Offset	Size	Description	(Table 2015)
 00h	BYTE	status of session: 4Eh=oNline, 46h=oFfline, 57h=Waiting
 01h	BYTE	terminal type (00h=VT100, 01h=TTY, 02h=VT52, 03h=IBM3101)
 02h	BYTE	current keypad mode (VT100,VT52 only)
		4Eh ("N") numeric mode
		41h ("A") application mode
 03h  4 BYTEs	current state of LEDs (VT100 only)
		00h off
		01h on
 07h	WORD	line error count
 09h	WORD	primary error code (see #2016)
 0Bh	WORD	secondary error code

(Table 2016)
Values for VINES primary error code:
 0000h	no error
 0001h	unable to make connection
 0002h	communications error, restart session
 0003h	async terminal emulation service unavailable
 0004h	lost carrier
 0005h	all matching lines busy
 0006h	no lines defined for connection name
 0007h	no dial lines available on server
 0008h	no matching dial lines available
 0009h	out of heap space
 000Ah	service error encountered
 000Bh	timed out waiting to connect
 000Ch	communications error
 000Dh	communications error
 000Eh	host wants file transferred to/from PC
 000Fh	host software changed session parameter
 0010h	host software changed tap settings
 0011h	host software changed LED indicator
 0012h	host software changed display background (secondary error code 00h for
	  white on black, 01h for black on white)
 0013h	host software changed display option (secondary error code 00h for off,
	  01h for on)
 0014h	communications error
 0015h	communications error
 0016h	unable to make connection
 0017h	unable to make connection
SeeAlso: #2012
--------N-610003SF01-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SEND TO HOST
	AX = 0003h subfn 01h
	DS:BX -> argument block (see #2017)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=02h,AX=0003h/SF=14h

Format of VINES argument block for Function 0003h subfunction 01h:
Offset	Size	Description	(Table 2017)
 00h	BYTE	session ID (00h)
 01h	BYTE	01h (function "send to host")
 02h	BYTE	type
		00h ASCII byte
		01h ASCII string
		02h terminal function code
		03h up arrow
		04h down arrow
		05h left arrow
		06h right arrow
		07h break
 03h  N BYTEs	type-specific info (see #2018)

Format of type-specific info:
Offset	Size	Description	(Table 2018)
---ASCII byte---
 03h	BYTE	byte to send to host
---ASCII string---
 03h	WORD	length of string
 05h	WORD	pointer to string
---terminal function code (VT52/VT100)---
 03h	BYTE	function code
		00h keypad 0
		01h keypad 1
		...
		09h keypad 9
		0Ah keypad -
		0Bh keypad ,
		0Ch keypad .
		0Dh keypad ENTER
		0Eh PF1
		0Fh PF2
		10h PF3
		11h PF4
---terminal function code (IBM3101)---
 03h	BYTE	function code
		00h PF1
		...
		07h PF8
		08h Home
SeeAlso: #2017
--------N-610003SF02-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - "CONTROL MONITOR"
	AX = 0003h subfn 02h
	DS:BX -> argument block (see #2019)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=03h,AX=0003h/SF=05h

Format of VINES argument block for Function 0003h subfunction 02h:
Offset	Size	Description	(Table 2019)
 00h	BYTE	session ID (00h)
 01h	BYTE	02h (function "control monitor")
 02h	BYTE	display flag
		00h don't display data received from host
		01h display data
--------N-610003SF03-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - "FLOW CONTROL DATA"
	AX = 0003h subfn 03h
	DS:BX -> argument block (see #2020)
Return: AX = status (see #2012)
Desc:	this function permits the caller to freeze/unfreeze the display and
	  the ring buffer
SeeAlso: AX=0003h/SF=02h,AX=0003h/SF=06h

Format of VINES argument block for Function 0003h subfunction 03h:
Offset	Size	Description	(Table 2020)
 00h	BYTE	session ID (00h)
 01h	BYTE	03h (function "flow control data")
 02h	BYTE	flow control flag
		00h allow characters to be put into display or ring buffer
		01h don't place any more characters into display or ring buffer
--------N-610003SF04-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - END ACTIVE SESSION
	AX = 0003h subfn 04h
	DS:BX -> argument block (see #2021)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=0Ah,AX=0003h/SF=0Dh,AX=0003h/SF=0Fh

Format of VINES argument block for ending active session:
Offset	Size	Description	(Table 2021)
 00h	BYTE	session ID (00h)
 01h	BYTE	04h (function "end active session")
--------N-610003SF05-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SET SESSION PARAMETER
	AX = 0003h subfn 05h
	DS:BX -> argument block (see #2022)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=06h,AX=0003h/SF=08h

Format of VINES argument block for setting session parameters:
Offset	Size	Description	(Table 2022)
 00h	BYTE	session ID (00h)
 01h	BYTE	05h (function "set session parameter")
 02h	BYTE	parameter number (see #2023)
 03h	BYTE	new parameter value

(Table 2023)
Values for parameter number:
 00h	line speed (00h=any, 01h=50, 02h=110, 03h=134.5, 04h=150,
		  05h=300, 06h=600, 07h=1200, 08h=2400, 09h=4800, 0Ah=9600)
 01h	parity (00h=none, 01h=odd, 02h=even)
 02h	duplex (00h=full, 01h=half)
 03h	character size (00h=7 bits, 01h=8 bits)
 04h	stop bits (00h=1, 01h=2)
 05h	XON/XOFF flow control (00h=no, 01h=yes)
 07h	intercharacter delay in tenths of a second
 08h	interline delay in tenths of a second
 09h	auto linefeed (00h=no, 01h=yes)
 0Ah	filter control characters (00h=no, 01h=yes)
 0Bh	terminal type (00h=VT100,01h=glassTTY,02h=VT52,03h=IBM3101)
 0Ch	auto wrap (00h=no, 01h=yes)
 0Dh	cursor shape (00h=underscore, 01h=block)
 0Eh	character set (00h=UK, 01h=US ASCII)
 0Fh	printer port (00h=LPT1, 01h=LPT2, 02h=LPT3)
SeeAlso: #2022
--------N-610003SF06-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET SESSION PARAMETER
	AX = 0003h subfn 06h
	DS:BX -> argument block (see #2024)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=05h,AX=0003h/SF=07h

Format of VINES argument block for getting session parameters:
Offset	Size	Description	(Table 2024)
 00h	BYTE	session ID (00h)
 01h	BYTE	06h (function "get session parameter")
 02h	BYTE	parameter number (see #2023)
 03h	BYTE	(ret) current parameter value
--------N-610003SF07-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SET TAB SETTINGS
	AX = 0003h subfn 07h
	DS:BX -> argument block (see #2025)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=05h,AX=0003h/SF=08h

Format of VINES argument block for setting tab settings:
Offset	Size	Description	(Table 2025)
 00h	BYTE	session ID (00h)
 01h	BYTE	07h (function "set tab settings")
 02h	WORD	pointer to 80-byte buffer in caller's current DS
		  each byte = 00h if no tab, 01h if tab at that position
--------N-610003SF08-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET TAB SETTINGS
	AX = 0003h subfn 08h
	DS:BX -> argument block (see #2026)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=07h

Format of VINES argument block for getting tab settings:
Offset	Size	Description	(Table 2026)
 00h	BYTE	session ID (00h)
 01h	BYTE	08h (function "get tab settings")
 02h	WORD	pointer to 80-byte buffer in caller's current DS
		each byte set to 00h if no tab, 01h if tab at that position
--------N-610003SF09-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - REFRESH EMULATION SCREEN
	AX = 0003h subfn 09h
	DS:BX -> argument block (see #2027)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=0Bh

Format of VINES argument block for Function 0003h subfunction 09h:
Offset	Size	Description	(Table 2027)
 00h	BYTE	session ID (00h)
 01h	BYTE	09h (function "refresh emulation screen")
--------N-610003SF0A-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SUSPEND SESSION TEMPORARILY
	AX = 0003h subfn 0Ah
	DS:BX -> argument block (see #2028)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=04h,AX=0003h/SF=09h,AX=0003h/SF=0Bh,AX=0003h/SF=0Dh

Format of VINES argument block:
Offset	Size	Description	(Table 2028)
 00h	BYTE	session ID (00h)
 01h	BYTE	0Ah (function "suspend session temporarily")
 02h	WORD	size of session information to be saved
 04h	WORD	pointer to buffer in caller's DS
--------N-610003SF0B-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - RESUME SUSPENDED SESSION
	AX = 0003h subfn 0Bh
	DS:BX -> argument block (see #2029)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=09h,AX=0003h/SF=0Ah

Format of VINES argument block:
Offset	Size	Description	(Table 2029)
 00h	BYTE	session ID (00h)
 01h	BYTE	0Bh (function "restore previously suspended session")
 02h	WORD	size of buffer into which session info is restored
 04h	WORD	pointer to buffer in caller's DS
--------N-610003SF0C-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SET SCROLL LOCK CHECKING
	AX = 0003h subfn 0Ch
	DS:BX -> argument block (see #2030)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h

Format of VINES argument block:
Offset	Size	Description	(Table 2030)
 00h	BYTE	session ID (00h)
 01h	BYTE	0Ch (function "set state of scroll lock checking")
 02h	BYTE	check_scroll_lock flag
		00h off
		01h on (display of host data stopped while ScrollLock on)
--------N-610003SF0D-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - EXIT EMULATION
	AX = 0003h subfn 0Dh
	DS:BX -> argument block (see #2031)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=04h,AX=0003h/SF=0Ah

Format of VINES argument block:
Offset	Size	Description	(Table 2031)
 00h	BYTE	session ID (00h)
 01h	BYTE	0Dh (function "exit emulation")
--------N-610003SF0E-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INTERRUPT ON CHAR FROM HOST
	AX = 0003h subfn 0Eh
	DS:BX -> argument block (see #2032)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=14h

Format of VINES argument block:
Offset	Size	Description	(Table 2032)
 00h	BYTE	session ID (00h)
 01h	BYTE	0Eh (function "interrupt on character from host")
 02h	DWORD	pointer to routine to be called (0000h:0000h = don't call)
 06h	DWORD	stack pointer to use when call is made
--------N-610003SF0F-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - START A SESSION
	AX = 0003h subfn 0Fh
	DS:BX -> argument block (see #2033)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=04h,AX=0003h/SF=0Bh

Format of VINES argument block:
Offset	Size	Description	(Table 2033)
 00h	BYTE	session ID (00h)
 01h	BYTE	0Fh (function "start a session")
 02h	WORD	pointer to information area in caller's current DS (see #2034)

Format of VINES information area:
Offset	Size	Description	(Table 2034)
 00h	WORD	length of service name
 02h	WORD	pointer to service name in caller's DS
 04h	BYTE	type of connection (00h=connection name, 01h=dialout)
 05h	WORD	length of connection name/telephone number
 07h	WORD	pointer to connection name/telephone number
--------N-610003SF10-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - START/STOP PRINTING
	AX = 0003h subfn 10h
	DS:BX -> argument block (see #2035)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=13h

Format of VINES argument block:
Offset	Size	Description	(Table 2035)
 00h	BYTE	session ID (00h)
 01h	BYTE	10h (function "start/stop printing of data received from host")
 02h	WORD	print capture flag (00h=off, 01h=on)
--------N-610003SF11-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET FILE TRANSFER PARAMETERS
	AX = 0003h subfn 11h
	DS:BX -> argument block (see #2036)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=12h

Format of VINES argument block:
Offset	Size	Description	(Table 2036)
 00h	BYTE	session ID (00h)
 01h	BYTE	11h (function "get file transfer parameters")
 02h	WORD	pointer to info area in caller's current DS (see #2037)

Format of VINES info area:
Offset	Size	Description	(Table 2037)
 00h	BYTE	protocol flag (00h none, 01h Kermit)
 01h	BYTE	direction flag (00h send, 01h receive)
 02h	BYTE	length of null-terminated PC filename
 03h	DWORD	pointer to null-terminated PC filename
 07h	BYTE	length of null-terminated host filename
 08h	DWORD	pointer to null-terminated host filename
--------N-610003SF12-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET CONNECTION INFORMATION
	AX = 0003h subfn 12h
	DS:BX -> argument block (see #2038)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=11h,AX=0003h/SF=15h

Format of VINES argument block:
Offset	Size	Description	(Table 2038)
 00h	BYTE	session ID (00h)
 01h	BYTE	12h (function "get connection information")
 02h	WORD	offset of buffer for connection information (see #2039)

Format of VINES connection information:
Offset	Size	Description	(Table 2039)
 00h	WORD	length of service name (returned)
 02h	WORD	pointer to 64-byte buffer for service name
 04h	BYTE	type of connection
		00h connection name
		01h dialout
 05h	WORD	length of connection name/telephone number
 07h	WORD	pointer to 64-byte buffer for name/telno
 09h	BYTE	server line number being used (returned)
--------N-610003SF13-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - START/STOP TRACING TRAFFIC
	AX = 0003h subfn 13h
	DS:BX -> argument block (see #2040)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=0Eh

Format of VINES argument block:
Offset	Size	Description	(Table 2040)
 00h	BYTE	session ID (00h)
 01h	BYTE	13h (function "start/stop tracing data traffic in session")
 02h	BYTE	trace flag (00h=off, 01h=on)
--------N-610003SF14-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INTERRUPT ON HOST MESSAGE
	AX = 0003h subfn 14h
	DS:BX -> argument block (see #2041)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=0Eh

Format of VINES argument block:
Offset	Size	Description	(Table 2041)
 00h	BYTE	session ID (00h)
 01h	BYTE	14h (function "interrupt on message from host")
 02h	DWORD	pointer to routine to be called (0000h:0000h = don't call)
 06h	DWORD	stack pointer to use when call is made
--------N-610003SF15-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - RESET ERROR
	AX = 0003h subfn 15h
	DS:BX -> argument block (see #2042)
Return: AX = status (see #2012)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=12h

Format of VINES argument block:
Offset	Size	Description	(Table 2042)
 00h	BYTE	session ID (00h)
 01h	BYTE	15h (function "reset error")
--------V-610003-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - REPORT ZOOM FACTOR
	AX = 0003h
Return: AX = zoom factor
Desc:	returns the current zoom factor
Range:	unknown
Notes:	INT 61h is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0005h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610004-----------------------------
INT 61 - Banyan VINES - FILE SERVICE CONTROL
	AX = 0004h
	DS:DX -> request block (see #2044)
Return: AX = status (see #2043)
Notes:	This service is handled by the redirector
	The request dispatch table contains dummy entries for requests 0Ah,
	  0Dh, 15h, 19h, and 1Ah, which always return error 0033h (invalid
	  request ID)

(Table 2043)
Values for Banyan VINES file service control status code:
 0000h	successful
 0002h	file not found
 0003h	path not found
 000Fh	invalid drive
 0015h	drive not ready
 0033h	invalid request ID
 0034h	drive not connected
 0037h	drive number out of range
 0038h	drive number not available
 003Ah	invalid operation
 0055h	drive already connected
 0057h	invalid number of entries

Format of Banyan VINES file service request block:
Offset	Size	Description	(Table 2044)
 00h	WORD	request ID (1..28)
 02h  n BYTES	additional parameters and result buffer
--------N-610004SF0001-----------------------
INT 61 - Banyan VINES - SET DRIVE CONNECTION
	AX = 0004h subfn 0001h
	DS:DX -> request block (see #2045)
Return: AX = status (0000h,0037h,0038h,0055h) (see #2043)
Desc:	Maps the specified file service to a DOS drive letter
Note:	If an empty service name is specified, an existing connection will
	  be removed
SeeAlso: AX=0004h/SF=0002h

Format of VINES Function 0004h/Subfunction 0001h request block:
Offset	Size	Description	(Table 2045)
 00h	WORD	0001h
 02h	BYTE	drive number (0=default, 1=A, ...)
 03h 16	BYTEs	reserved
 13h 64	BYTEs	null-terminated file service name
 53h  5	BYTEs	reserved
--------N-610004SF0002-----------------------
INT 61 - Banyan VINES - GET DRIVE CONNECTION
	AX = 0004h subfn 0002h
	DS:DX -> request block (see #2046)
Return: AX = status (0000h,0034h,0037h) (see #2043)
Desc:	Returns the StreetTalk name of the associated file service
SeeAlso: AX=0004h/SF=0001h,AX=0004h/SF=0003h

Format of VINES Function 0004h/Subfunction 0002h request block:
Offset	Size	Description	(Table 2046)
 00h	WORD	0002h
 02h	BYTE	drive number (0=default, 1=A, ...)
 03h 16	BYTEs	reserved
 13h 64	BYTEs	buffer for null-terminated file service name
 53h  5	BYTEs	reserved
--------N-610004SF0003-----------------------
INT 61 - Banyan VINES - GET NETWORK DRIVE MAP
	AX = 0004h subfn 0003h
	DS:DX -> request block (see #2047)
Return: AX = status
	    0000h drive map returned in request block
Desc:	Returns a bit map indicating which drive numbers are connected to a
	  file service
Note:	Only bits 0-25 are significant
SeeAlso: AX=0004h/SF=0002h

Format of VINES Function 0004h/Subfunction 0003h request block:
Offset	Size	Description	(Table 2047)
 00h	WORD	0003h
 02h	DWORD	buffer for drive map (bit0=A, bit1=B, ...)
--------N-610004SF0004-----------------------
INT 61 - Banyan VINES - SET USER NAME
	AX = 0004h subfn 0004h
	DS:DX -> request block (see #2048)
Return: AX = status (0000h) (see #2043)
Notes:	Other side effects, if any, not known
SeeAlso: AX=0004h/SF=0005h,AX=0006h/SF=0004h,AX=0007h/BX=0005h

Format of VINES Function 0004h/Subfunction 0004h request block:
Offset	Size	Description	(Table 2048)
 00h	WORD	0004h
 02h 64	BYTE	null-terminated user name
--------N-610004SF0005-----------------------
INT 61 - Banyan VINES - GET USER NAME
	AX = 0004h subfn 0005h
	DS:DX -> request block (see #2049)
Return: AX = status (see also #2043)
	    0000h user name returned in request block
Desc:	Returns the StreetTalk name of the currently logged in user
SeeAlso: AX=0004h/SF=0004h,AX=0006h/SF=0004h,AX=0007h/BX=0005h
SeeAlso: AX=0004h/SF=0004h

Format of VINES Function 0004h/Subfunction 0005h request block:
Offset	Size	Description	(Table 2049)
 00h	WORD	0005h (subfunction "Get User Name")
 02h 64	BYTE	buffer for null-terminated user name
--------N-610004SF0006-----------------------
INT 61 - Banyan VINES - TEST DRIVE CONNECTION
	AX = 0004h subfn 0006h
	DS:DX -> request block (see #2050)
Return: AX = status (see also #2043)
	    0000h connection flag returned in request block
Desc:	Returns a flag indicating if the drive is connected to a file service
SeeAlso: AX=0004h/SF=0007h

Format of VINES Function 0004h/Subfunction 0006h request block:
Offset	Size	Description	(Table 2050)
 00h	WORD	0006h (subfunction "Test Drive Connection")
 02h	BYTE	buffer for connection flag (1 = not connected, 2 = connected)
--------N-610004SF0007-----------------------
INT 61 - Banyan VINES - GET CONNECTION DATA STRUCTURES
	AX = 0004h subfn 0007h
	DS:DX -> request block (see #2051)
Return: AX = status (see also #2043)
	    0000h pointer returned in request block
	    0033h invalid request ID
Desc:	Returns pointers to various internal data structures

Format of VINES Function 0004h/Subfunction 0007h request block:
Offset	Size	Description	(Table 2051)
 00h	WORD	0007h
 02h	BYTE	request ID (0..7) (see #2052)
 03h	WORD	buffer for pointer segment
 05h	WORD	buffer for pointer offset
SeeAlso: #2053,#2054

(Table 2052)
Values for VINES pointer ID:
 00h	job file table ???
 01h	drive handle table
 02h	drive connection table
 03h	IPC port of drive Z:
 04h	end of drive connection table
 05h	???
 06h	???
 07h	redirector data segment (offset=0)
SeeAlso: #2051

Format of VINES drive handle table:
Offset	Size	Description	(Table 2053)
 00h	BYTE	handle to default drive (0 = not connected)
 01h	BYTE	handle to drive A: (0 = not connected)
	...
 1Ah	BYTE	handle to drive Z: (0 = not connected)
SeeAlso: #2054

Format of VINES drive connection table:
Offset	Size	Description	(Table 2054)
 00h	WORD	file service type (?) (0001h if drive Z:, 0000h else)
 02h 16	BYTEs	IPC port (contains the server serial number)
 12h 46	BYTEs	???
 40h 64	BYTEs	null-terminated StreetTalk name of associated file service
 80h 64	BYTEs	null-terminated root directory (/ROOT: parameter of SETDRIVE)
SeeAlso: #2053
--------N-610004SF0008-----------------------
INT 61 - Banyan VINES - GET SERVER SERIAL NUMBER
	AX = 0004h subfn 0008h
	DS:DX -> request block (see #2055)
Return: AX = status (0000h,000Fh,0015h) (see #2043)
Notes:	The server ID is extracted from the IPC port address of the associated
	  file service stored in the drive connection table
	The server serial number and the server subnet number are returned in
	  big-endian (Motorola) format (i.e. MSB first)
SeeAlso: AX=0004h/SF=0005h

Format of VINES request block for getting server serial number:
Offset	Size	Description	(Table 2055)
 00h	WORD	0008h
 02h	WORD	drive number (0=default, 1=A, ...)
 04h	DWORD	buffer for server serial number
 08h	WORD	buffer for server subnet number (always 0001h)
--------N-610004SF0009-----------------------
INT 61 - Banyan VINES - SET ??? PARAMETER
	AX = 0004h subfn 0009h
	DS:DX -> request block (see #2056)
Return: AX = status (0000h) (see #2043)
Notes:	The specified WORD parameter is copied to offset 1702h of the
	  redirector code segment (revision 5.53)
SeeAlso: AX=0004h/SF=000Bh

Format of VINES Function 0004h/Subfunction 0009h request block:
Offset	Size	Description	(Table 2056)
 00h	WORD	0009h
 02h	WORD	parameter
--------N-610004SF000B-----------------------
INT 61 - Banyan VINES - GET ??? DRIVE PARAMETER
	AX = 0004h subfn 000Bh
	DS:DX -> request block (see #2057)
Return: AX = status (0000h,0034h,0037h) (see #2043)
Notes:	This request returns a WORD value from the drive connection table
	  read from offset 0012h of the specified drive's entry (usually 0037h)
SeeAlso: AX=0004h/SF=0009h

Format of VINES Function 0004h/Subfunction 000Bh request block:
Offset	Size	Description	(Table 2057)
 00h	WORD	000Bh
 02h	BYTE	drive number (0=default, 1=A, ...)
 03h	WORD	buffer for parameter
--------N-610004SF000C-----------------------
INT 61 - Banyan VINES - LOGOUT FROM VINES
	AX = 0004h subfn 000Ch
	DS:DX -> request block (see #2058)
Return: AX = status 0000h (see #2043)
Desc:	Terminates a running VINES session and clears all session specific
	  buffers
SeeAlso: AX=0004h/SF=0008h

Format of VINES Function 0004h/Subfunction 000Ch request block:
Offset	Size	Description	(Table 2058)
 00h	WORD	000Ch
--------N-610004SF000E-----------------------
INT 61 - Banyan VINES - GET ACCESS RIGHTS LIST (ARL)
	AX = 0004h subfn 000Eh
	DS:DX -> request block (see #2059)
Return: AX = status (see also #2043)
	    0000h request has been processed
Desc:	Returns the owner, group, and extended access rights for the specified
	  file or directory
Note:	A status of 0000h does not necessarily indicate a successful request;
	  check the status word at offset 000Eh of the request block too
SeeAlso: AX=0004h/SF=000Fh

Format of VINES Function 0004h/Subfunction 000Eh request block:
Offset	Size	Description	(Table 2059)
 00h	WORD	000Eh (subfunction "Get Access Rights List")
 02h	BYTE	drive number (0=default, 1=A, ...)
 03h	BYTE	reserved
 04h	DWORD	pointer to path specification (drive letter ignored)
 08h	DWORD	pointer to ARL control block (see #2060)
 0Ch	WORD	buffer for number of ARL entries (1..5)
 0Eh	WORD	buffer for status (see #2061)

Format of ARL control block:
Offset	Size	Description	(Table 2060)
 00h 64	BYTEs	1st StreetTalk name (user, list, or service)
 40h	WORD	1st ARL
 42h 64	BYTEs	2nd StreetTalk name (user, list, or service)
 82h	WORD	2nd ARL
 84h 64	BYTEs	3rd StreetTalk name (user, list, or service)
 C4h	WORD	3rd ARL
 C6h 64	BYTEs	4th StreetTalk name (user, list, or service)
106h	WORD	4th ARL
108h 64	BYTEs	5th StreetTalk name (user, list, or service)
148h	WORD	5th ARL

(Table 2061)
Values for VINES Get/Set Access Rights List status:
 0000h	successful
 0002h	file not found
 0003h	path not found
 003Ah	invalid operation
 0057h	invalid number of entries
--------N-610004SF000F-----------------------
INT 61 - Banyan VINES - SET ACCESS RIGHTS LIST (ARL)
	AX = 0004h subfn 000Fh
	DS:DX -> request block (see #2062)
Return: AX = status (see also #2043)
	    0000h request has been processed
Desc:	Sets the owner, group, and extended access rights for the specified
	  file or directory
Note:	A status of 0000h does not necessarily indicate a successful request;
	  check the status word at offset 000Eh of the request block too
	If the number of ARL entries is less than 1 or greater than 5, error
	  0057h (invalid number of entries) is returned
SeeAlso: AX=0004h/SF=000Eh

Format of VINES Function 0004h/Subfunction 000Fh request block:
Offset	Size	Description	(Table 2062)
 00h	WORD	000Fh
 02h	BYTE	drive number (0=default, 1=A, ...)
 03h	BYTE	reserved
 04h	DWORD	pointer to path specification (drive letter ignored)
 08h	DWORD	pointer to ARL control block (see #2060)
 0Ch	WORD	number of ARL entries (1..5)
 0Eh	WORD	buffer for status (see #2061)
--------N-610004SF0010-----------------------
INT 61 - Banyan VINES - FILE SERVICE CONTROL - ???
	AX = 0004h subfn 0010h
	DS:DX -> request block (see #2063)
Return: AX = status (see also #2043)
	    0000h request has been processed
SeeAlso: AX=0004h/SF=000Fh

Format of VINES Function 0004h/Subfunction 0010h request block:
Offset	Size	Description	(Table 2063)
 00h	WORD	0010h
 02h	BYTE	drive number (0=default, 1=A, ...)
 03h	BYTE	reserved
 04h 64	BYTEs	???
 44h 16	BYTEs	IPC port (see #1971 at AX=0001h"Sosock")
--------V-610004-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ENTER SPECIFY MODE
	AX = 0004h
Range:	unknown
Notes:	Specify Mode is enabled by hot key (seeAlso below), and allows
	  panning and zooming via the numeric keypad.
	INT 61 is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0007h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610005-----------------------------
INT 61 - Banyan VINES - PRINT SERVICE CONTROL
	AX = 0005h
	DS:DX -> request block (see #2064)
Return: AX = status
	    0000h successful
	    0001h network software not installed or incompatible
Note:	This service is handled by the redirector
SeeAlso: INT 2F/AX=D702h

Format of VINES request block for printer control:
Offset	Size	Description	(Table 2064)
 00h	WORD	function
		0201h "endspool" all data for a print job has been sent
		0205h "getactive" get currently active printer port
		0207h ??? purpose unknown; called periodically every second
 02h	WORD	number of active port (1-3)
 04h	WORD	??? (0 for func 0201h, 3 for func 0205h)
 06h	WORD	0000h
--------V-610005-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync - QUERY ZOOM WINDOW
	AX = 0005h
	BX:CX -> buffer for window parameters (see #2065)
Range:	unknown
Notes:	INT 61 is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0003h"OPTIMA",AX=0006h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"

Format of Optima 1024 window parameters:
Offset	Size	Description	(Table 2065)
 00h	WORD	X start of zoom window
 02h	WORD	Y start of zoom window
 04h	WORD	X end of zoom window
 06h	WORD	Y end of zoom window
 08h	WORD	current zoom factor
 0Ah	WORD	zoom offset start X
 0Ch	WORD	zoom offset start Y
--------V-610006-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - SET ZOOM WINDOW
	AX = 0006h
	BX:CX -> zoom window description (see #2066)
Range:	unknown
Notes:	width of zoom window must be a multiple of the pixel replication (zoom)
	  factor
	INT 61 is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0001h"OPTIMA",AX=0005h"OPTIMA",AX=0008h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"

Format of Optima 1024 zoom window description:
Offset	Size	Description	(Table 2066)
 00h	WORD	X start of zoom window
 02h	WORD	Y start of zoom window
 04h	WORD	X end of zoom window
 06h	WORD	Y end of zoom window
--------N-610006-----------------------------
INT 61 - Banyan VINES - GET ADDRESS OF INTERNAL VARIABLE
	AX = 0006h
	BX = bits 14..0: request ID (see #2067)
	     bit  15:	 result destination flag (0 for ES:BX, 1 for AX:BX)
Return: AX = status
	    0000h successful
	    000Bh invalid request
	ES:BX -> internal variable (bit 15 of BX was not set)
	AX:BX -> internal variable (bit 15 of BX was set)
Note:	This service is handled by the redirector

(Table 2067)
Values for request IDs:
Request	Length	Description
 0000h	   1	???
 0001h	  16	StreetTalk port
 0002h	   4	StreetTalk session handle
 0003h	   6	colors
 0004h	  64	StreetTalk name of currently logged in user
 0005h	   0	old clear text password (always returns error code 000Bh)
 0006h	   0	default group (not applicable)
 0007h	   1	message queue count
 0008h	   1	message flag
 0009h	  16	TalkPort
 000Ah	   2	TalkPort socket
 000Bh	  64	StreetTalk name of mail service
 000Ch	   2	message timeout
 000Dh	   2	next message place
 000Eh	 246	message queue
 000Fh	  14	system nonce
 0010h	   2	failed login count
 0011h	   1	new mail message received
 0012h	   8	mail capabilities
 0013h	   3	printer port diverted
 0014h	  32	international location
 0015h	  16	IPC port of drive Z:
 0016h	1024	pointer to current directory table
 0017h	   2	maximum number of file volume mappings
 0018h	  24	routine to call back for messages
 0019h	   4	current virtual machine
 001Ah	  20	DOS redirector message bell tones
 001Bh	   2	various flags used for internal communication
 001Ch	   0	OS/2 client configuration (always returns error code 000Bh)
 001Dh	   8	redirector/IFS file version
 001Eh	   0	reserved (always returns error code 000Bh)
 001Fh	   4	address of VVINESD.386 dispatch
--------V-610007-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - QUERY APPLICATION KEY
	AX = 0007h
Return: AX = current state (0000h/0001h)
Desc:	returns the current toggle state of the application (END) key in
	  specify mode. E.g. in the OPTIMA AutoCAD driver, 0 means AutoCAD
	  calls INT 61/AX=0001h every time the crosshair cursor moves.
Notes:	In specify mode, the END key has been reserved for applications.
	INT 61 is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0001h"OPTIMA",AX=0004h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA",INT 7A/AX=0001h"AutoCAD"
--------N-610007BX0000-----------------------
INT 61 - Banyan VINES - RECONNECT TO STREETTALK
	AX = 0007h
	BX = 0000h
Return: AX = status (see #2068)
SeeAlso: AX=0007h/BX=0002h

(Table 2068)
Values for VINES function status:
 0000h	successful
 0001h	requested handler not installed or incompatible
 000Bh	service busy
 000Ch	invalid request ID
 03E9h	incorrect name syntax
 03EAh	organization name too long
 03EBh	group name too long
 03ECh	item name too long
 03EDh	StreetTalk name too long
 03F3h	organization not found
 03F4h	group not found
 03F5h	StreetTalk name not found
 03F8h	not a StreetTalk name
 0409h	modify access denied
 040Dh	appropriate StreetTalk name unavailable
 0411h	all matching names have been returned
 0412h	some groups unavailable, all available matches returned
--------N-610007BX0001-----------------------
INT 61 - Banyan VINES - GET MM PORT FOR A SERVICE
	AX = 0007h
	BX = 0001h
	DS:DX -> StreetTalk service name (64 bytes)
	DS:DI -> 16-byte buffer for IPC port (see #1971 at AX=0001h"Sosock")
Return: AX = status (see #2068)
Notes:	This function calls AX=0007/BX=0002h with the port count set to 1 and
	  the port type set to 00h
SeeAlso: AX=0007h/BX=0002h,AX=0007h/BX=0004h,AX=0007h/BX=000Ah
--------N-610007BX0002-----------------------
INT 61 - Banyan VINES - GET PORTS FOR A SERVICE
	AX = 0007h
	BX = 0002h
	DS:DX -> StreetTalk service name
	DS:DI -> port record block (see #2069)
Return: AX = status (see #2068)
Note:	if the requested number of ports is greater than five, it will be reset
	  to five
SeeAlso: AX=0007h,BX=0001h,AX=0007h/BX=0003h,AX=0007h/BX=0004h
SeeAlso: AX=0007h/BX=000Ah

Format of VINES port record block:
Offset	Size	Description	(Table 2069)
 00h	WORD	(call) number of 17-byte elements (01h-05h) to be filled
 02h	BYTE	(call) port type for first port
 03h 16 BYTEs	(ret) port (see #1971)
 13h	BYTE	(call) port type for second port
 14h 16 BYTEs	(ret) port (see #1971)
 24h	BYTE	(call) port type for third port
 25h 16 BYTEs	(ret) port (see #1971)
 35h	BYTE	(call) port type for fourth port
 36h 16 BYTEs	(ret) port (see #1971)
 46h	BYTE	(call) port type for fifth port
 47h 16 BYTEs	(ret) port (see #1971)
 57h	BYTE	reserved
SeeAlso: #2071
--------N-610007BX0003-----------------------
INT 61 - Banyan VINES - FIND A SERVICE
	AX = 0007h
	BX = 0003h
	DS:DX -> port control block (see #2070)
Return: AX = status (see AX=0007h)
SeeAlso: AX=0007h/BX=0002h,AX=0007h/BX=0004h,AX=0007h/BX=0005h

Format of port control block:
Offset	Size	Description	(Table 2070)
 00h	WORD	???
 02h	WORD	???
 04h 16	BYTEs	IPC port (see #1971 at AX=0001h"Sosock")
 14h  5	WORDs	???
SeeAlso: #2076
--------N-610007BX0004-----------------------
INT 61 - Banyan VINES - SET PORTS FOR A SERVICE
	AX = 0007h
	BX = 0004h
	DS:DX -> StreetTalk name of service (max 64 bytes)
	DS:DI -> port record block (see #2071)
Return: AX = status (see #2068)
SeeAlso: AX=0007h/BX=0002h,AX=0007h/BX=0003h,AX=0007h/BX=000Ah

Format of VINES port record block:
Offset	Size	Description	(Table 2071)
 00h	WORD	number of 17-byte elements
 02h	BYTE	port type for first port
 03h 16 BYTEs	first IPC port (see #1971)
 13h	BYTE	port type for second port
 14h 16 BYTEs	second IPC port (see #1971)
 24h	BYTE	port type for third port
 25h 16 BYTEs	third IPC port (see #1971)
 35h	BYTE	port type for fourth port
 36h 16 BYTEs	fourth IPC port (see #1971)
 46h	BYTE	port type for fifth port
 47h 16 BYTEs	fifth IPC port (see #1971)
 57h	BYTE	reserved
SeeAlso: #2069
--------N-610007BX0005-----------------------
INT 61 - Banyan VINES - GET USER NAME
	AX = 0007h
	BX = 0005h
	DS:DX -> 64-byte buffer for user's StreetTalk name
Return: AX = status (see also #2068)
	    0000h successful
	    0001h network software not installed or incompatible
Note:	if no user logged in, first byte of returned name will be 00h
SeeAlso: AX=0007h/BX=0007h
--------N-610007BX0006-----------------------
INT 61 - Banyan VINES - TRANSLATE ERROR INTO ASCII STRING
	AX = 0007h
	BX = 0006h
	SI = error code (>100)
	DS:DX -> 80-byte buffer for error text
Return: AX = status (see also #2068)
	    0000h successful
	    0001h network software not installed or incompatible
--------N-610007BX0007-----------------------
INT 61 - Banyan VINES - VERIFY EXISTENCE OF NAME AND RETURN CANONICAL FORM
	AX = 0007h
	BX = 0007h
	DS:DX -> NiceName block (see #2072)
Return: AX = status (see #2068)
SeeAlso: AX=0007h/BX=0005h,AX=0007h/BX=0008h

Format of VINES NiceName block:
Offset	Size	Description	(Table 2072)
 00h	WORD	type of name
		0064h (100) organization
		00C8h (200) group
		012Ch (300) item
 02h	WORD	pointer to ASCIZ input name
 04h	WORD	pointer to 64-byte buffer for output name
SeeAlso: #2073
--------N-610007BX0008-----------------------
INT 61 - Banyan VINES - ENUMERATE StreetTalk NAMES
	AX = 0007h
	BX = 0008h
	DS:DX -> enumerate block (see #2073)
Return: AX = status (see also #2068)
	    0000h successful
	    0411h all matching names have been returned
	    0412h some groups unavailable, all available matches returned
Note:	each program using this call should continue until a nonzero status
	  is returned; otherwise, some resources will not be freed for several
	  hours
SeeAlso: AX=0007h/BX=0005h,AX=0007h/BX=0007h,AX=0007h/BX=0009h

Format of VINES enumerate block:
Offset	Size	Description	(Table 2073)
 00h	WORD	return code
 02h	WORD	pointer to pattern string
 04h	WORD	enumerate type
		0064h (100) organization
		00C8h (200) group
		012Ch (300) item
 06h	WORD	enumerate class
		0000h unspecified (return all matching items)
		0001h user names
		0002h service names
		0003h list names
		0004h nicknames
 08h	WORD	pointer to category criteria block (see #2074) or 0
 0Ah	WORD	pointer to array of 64-byte returned names
 0Ch	WORD	number of names returned
 0Eh  6 BYTEs	reserved for subsequent enumerated calls (set to zeros on first
		  call)
SeeAlso: #2072

Format of category criteria block:
Offset	Size	Description	(Table 2074)
 00h	WORD	exclude flag
		0000h return only items with the specified categories
		0001h return all items except those with the given categories
 02h	WORD	number of categories (max 5, 0000h = match all categories)
 04h	WORD	category 1 value (see #2075)
 06h	WORD	category 2 value
 08h	WORD	category 3 value
 0Ah	WORD	category 4 value
 0Ch	WORD	category 5 value
SeeAlso: #2073

(Table 2075)
Values for common VINES service categories:
 0001h	server service
 0002h	file service
 0003h	print service
 0004h	mail service
 0005h	StreetTalk
 0006h	time service
 0007h	FTP service
 0008h	semaphore service
 0009h	3270/SNA service
 000Ah	terminal emulation service
 000Bh	asynchronous terminal service
 000Ch	NETBIOS service
 000Dh	PC-based service
 000Eh	BSC service
 000Fh	APPC service
 0010h	NM service
 0011h	VS service
 0012h	POP service
 0013h	AFP service
 0014h	VCS service
 0015h	EMS service
 0016h	LN service
 0017h	BS service
 0023h	RIPL service
 0064h	ADM service
SeeAlso: #2074
--------N-610007BX0009-----------------------
INT 61 - Banyan VINES - TRANSLATE ERROR INTO ASCII STRING (SELECTED PORT)
	AX = 0007h
	BX = 0009h
	SI = error code
	DS:DX -> 80-byte buffer for error text
	DS:DI -> IPC port (16 bytes; see AX=0001h#"Sosock" for port format)
Return: AX = status (see AX=0007h)
Note:	Same as AX=0007h/BX=0006h, except IPC port is specified explicitly
SeeAlso: AX=0007h/BX=0006h
--------N-610007BX000A-----------------------
INT 61 - Banyan VINES - internal, OS/2 only - GET MANY PORTS FOR SERVICE
	AX = 0007h
	BX = 000Ah
	DS:DX -> port control block (see #2076)
Return: AX = status (see AX=0007h)
Note:	This function cannot be called from applications, as the DS register
	  is checked against the redirector data segment address (status code
	  0001h will be returned if DS doesn't match)
SeeAlso: AX=0007h/BX=0001h,AX=0007h/BX=0002h,AX=0007h/BX=0004h

Format of port control block:
Offset	Size	Description	(Table 2076)
 00h	WORD	???
 02h	WORD	???
 04h 16	BYTEs	IPC port (see #1971 at AX=0001h"Sosock")
 14h 14 WORDs	???
SeeAlso: #2070
--------V-610008-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - SET ZOOM OFFSET
	AX = 0008h
	BX = X start of zoom offset
	CX = Y start of zoom offset
Desc:	specifies the first byte of video memory to appear in the zoom window
Range:	unknown
Notes:	INT 61 is the default interrupt; the actual interrupt number can be
	  obtained by calling INT 16/AH=FFh
	not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0006h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610008BX0000-----------------------
INT 61 - Banyan VINES - TALKPORT SERVICE - GET HANDLER ADDRESS
	AX = 0008h
	BX = 0000h
Return: AX = status
	    0000h successful
	ES:DX = far pointer to handler
Desc:	The TalkPort is a facility to display event messages (e.g. mail
	  received, printing on a local printer, ...) on the screen
Note:	This service is handled by the redirector
SeeAlso: AX=0008h/BX=0001h,AX=0008h/BX=0002h
--------N-610008BX0001-----------------------
INT 61 - Banyan VINES - TALKPORT SERVICE - SET HANDLER ADDRESS
	AX = 0008h
	BX = 0001h
	ES:DX -> new handler
Return: AX = status
	    0000h successful
SeeAlso: AX=0008h/BX=0000h
--------N-610008BX0002-----------------------
INT 61 - Banyan VINES - TALKPORT SERVICE - POST MESSAGE ON LOCAL DISPLAY
	AX = 0008h
	BX = 0002h
	CX = message display flags (see #2077)
	DS:DX -> ASCIZ string to display (only first 80 chars used)
Return: AX = status
	    0000h successful
	    000Bh message display function currently busy
	    000Ch message queue full
Notes:	queues up to three messages to be displayed on the bottom line
	This service is handled by the redirector
	In a DOS session, TalkPort messages are displayed on display line 25;
	  in a Windows session, TalkPort messages are displayed in dialog boxes
SeeAlso: AX=0008h/BX=0000h,AX=0008h/BX=0003h

Bitfields for VINES message display flags:
Bit(s)	Description	(Table 2077)
 0	message will remain on screen until user presses ^X
 1	ring bell after displaying message
 2	blink
--------N-610008BX0003-----------------------
INT 61 - Banyan VINES - TALKPORT SERVICE - INTERCEPT VINES 25th-LINE MESSAGES
	AX = 0008h
	BX = 0003h
	DS:DX -> request block (see #2078)
Return: AX = status
	    0000h successful
	    0001h network software not installed or incompatible
Notes:	message handler should not call BIOS or DOS functions, and should
	  either call next handler or simply return
	to stop intercepting messages, set prev and next request blocks to
	  point at each other
SeeAlso: AX=0008h/BX=0002h

Format of VINES request block for 25-th line messages:
Offset	Size	Description	(Table 2078)
 00h	DWORD	pointer to user-written message handler
 04h	DWORD	pointer to next request block (filled in by VINES)
 08h	DWORD	pointer to previous request block (filled in by VINES)
 0Ch	DWORD	pointer to message storage area (filled by VINES) (see #2079)

Format of message storage area:
Offset	Size	Description	(Table 2079)
 00h 16 BYTEs	IPC port of message sender (see #1971)
 10h	BYTE	message flags
 11h	WORD	reserved
 13h	BYTE	length of message
 14h 80 BYTEs	message text
SeeAlso: #2078
--------N-610009-----------------------------
INT 61 - Banyan VINES - NETBIOS CLIENT SERVICE
	AX = 0009h
	other parameters, if any, unknown
--------N-61000A-----------------------------
INT 61 - Banyan VINES - SECONDARY 3270 INTERFACE
	AX = 000Ah
Note:	either 3270/SNA or 3270/BSC interface will use AX=000Ah, depending on
	  which is loaded second.  The first interface loaded will use AX=0002h
SeeAlso: INT 61/AX=0002h
--------N-61000B-----------------------------
INT 61 - Banyan VINES - SEMAPHORE SERVICE
	AX = 000Bh
	other parameters, if any, unknown
--------N-61000C-----------------------------
INT 61 - Banyan VINES - 3270 KEYBOARD HANDLER
	AX = 000Ch
	other parameters, if any, unknown
--------N-61000D-----------------------------
INT 61 - Banyan VINES - T3270 SERVICE FUNCTION
	AX = 000Dh
	other parameters, if any, unknown
--------N-61000E-----------------------------
INT 61 - Banyan VINES - ENHANCED 3270 SERVICE
	AX = 000Eh
	other parameters, if any, unknown
--------N-61000F-----------------------------
INT 61 - Banyan VINES - COMM WINDOWS ENTRY POINT
	AX = 000Fh
	other parameters, if any, unknown
Note:	This service ist handled by the adapter driver
--------N-610010-----------------------------
INT 61 - Banyan VINES - INTERFACE TO NBNS
	AX = 0010h
	other parameters, if any, unknown
--------N-6101-------------------------------
INT 61 - Banyan VINES - CHECK SERVICE
	AH = 01h
	AL = service ID (see #2080)
Return: AX = status
	    0000h installed
	    0001h not installed
	    0002h invalid ID
	    0003h invalid function
Note:	Only the offset part of the service pointer is checked for a nonzero
	  value
SeeAlso: AH=00h,AH=02h"VINES",AH=03h"VINES"

(Table 2080)
Values for VINES service ID:
 01h	communications
 02h	primary 3270 emulation
 03h	async terminal emulation
 04h	file deflection
 07h	StreetTalk
 08h	environment
 0Ah	secondary 3270 emulation
 0Bh	semaphore service
 0Ch	3270 emulation active status
 0Dh	T3270 keyboard interrupt simulator
 0Eh	enhanced 3270 service
 0Fh	comm Windows entry point
 10h	interface to NBNS
--------N-6101--BX0000-----------------------
INT 61 u - PC/TCP kernel v2.1+ - "net_config" - CONFIGURE RUNNING KERNEL
	AH = 01h
	BX = 0000h
	DH = tag number
	DL = device number
	DS:SI -> buffer to send to kernel
	ES:DI -> integer containing size of buffer
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
Notes:	there are a large number of tags available; the items returned
	  all refer to local kernel configuration, and are not needed in
	  normal use.
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=02"PC/TCP"
--------N-6102-------------------------------
INT 61 - Banyan VINES - GET REVISION NUMBER
	AH = 02h
	DS:DX -> 2-byte buffer for result
Return: AX = 0000h installed
	    DS:DX buffer contains revision number as
		10000d * major_ver + 100d * minor_ver + patch_revision
SeeAlso: AH=01h"VINES",AH=04h"VINES",AH=07h"VINES"
--------N-6102--BX0000-----------------------
INT 61 u - PC/TCP kernel v2.1+ - "get_kernel_info" - GET MISCELLAN LOCAL INFO
	AH = 02h
	BX = 0000h
	DH = tag number
	DL = device number
	DS:SI -> buffer for result (up to 48 bytes for version <= 2.2)="" es:di="" -=""> integer containing size of buffer
Return: CF clear if successful
	    Data loaded into specified buffer, and size value altered
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
Notes:	there are a large number of tags available; the items returned
	  all refer to local kernel configuration, and are not needed in
	  normal use.
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=01h"PC/TCP"
--------N-6103-------------------------------
INT 61 - Banyan VINES - INSTALL SERVICE HANDLER
	AH = 03h
	AL = service ID (see #2080)
	DS:DX -> new service handler
Return: AX = 0000h successful
SeeAlso: AH=00h,AH=01h"VINES",AH=02h"VINES",AH=05h"VINES"
--------N-6104-------------------------------
INT 61 - Banyan VINES - CHECK VINES REVISION NUMBER IN RANGE
	AH = 04h
	DS:DX -> 2-byte buffer containing the VINES revision number
	    DS:DX buffer contains revision number as
		10000d * major_ver + 100d * minor_ver + patch_revision
Return: AX = status
	    0000h valid version
	    0004h out of range
Note:	For Revision 5.53, the valid range is 4.10(0) to 6.19(99)
SeeAlso: AH=02h"VINES",AH=07h"VINES",AH=08h"VINES"
--------N-6105-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "get_addr" - GET INTERNET ADDRESS OF NET DESCR
	AH = 05h
	BX = network descriptor
Return: CF clear if successful
	    DX:AX = Internet address of ND
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
Notes:	the installation check consists of testing for the signature "TCPTSR"
	  three bytes beyond the start of the interrupt handler
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=16h"PC/TCP"
SeeAlso: INT 63/AH=25h"BW-TCP"
--------N-6105-------------------------------
INT 61 - Banyan VINES - READ PCCONFIG BYTES
	AH = 05h
	CX = number of bytes to copy
	    (max. 0175h for VINES 4.00, max. 017Fh for VINES 4.10+)
	SI = offset of area to be copied (see #2081,#2082)
Return: AX = status
	    0000h successful
	    0004h out of range
Notes:	The PCCONFIG area is located in the code segment of the BANV handler
	To find out which PCCONFIG structure applies, call this function first
	  with CX=0006h to get the VINES revision number
SeeAlso: AH=02h"VINES",AH=04h"VINES",AH=06h"VINES",AH=0Bh"VINES"

Format of PCCONFIG area (VINES 4.00):
Offset	Size	Description	(Table 2081)
 00h  6	BYTEs	VINES revision (ASCII, zero-padded)
 06h  2	BYTEs	NEWREV-number (ASCII, two digits)
 08h	WORD	hardware interrupt level
 0Ah	WORD	DMA channel
 0Ch	WORD	I/O address
 0Eh	DWORD	adapter ROM address (linear)
 12h	DWORD	adapter RAM address (linear)
 16h	WORD	BANV interrupt
 18h 32	BYTEs	default login group #1
 38h 32	BYTEs	default login group #2
 58h 32	BYTEs	default login group #3
 78h	WORD	semaphore locking support flag
 7Ah	WORD	extended StreetTalk flag
 7Ch	WORD	maximum number of file volumes
 7Eh	WORD	NetBIOS flag
 80h 60	BYTEs	default network adapter
 BCh 60	BYTEs	default communications driver
 F8h	WORD	maximum number of SPP connections
 FAh	WORD	maximum number of open sockets
 FCh	WORD	communications buffer size (10..60 KB)
 FEh 20	BYTEs	location directory on drive Z:
112h 33	BYTEs	auxiliary configuration area #1 (see #2083)
133h 33	BYTEs	auxiliary configuration area #2
154h 33	BYTEs	auxiliary configuration area #3
SeeAlso: #2082

Format of PCCONFIG area (VINES 4.10+):
Offset	Size	Description	(Table 2082)
 00h  6	BYTEs	VINES revision (ASCII, zero-padded)
 06h  2	BYTEs	NEWREV-number (ASCII, two digits)
 08h	WORD	hardware interrupt level
 0Ah	WORD	DMA channel
 0Ch	WORD	I/O address
 0Eh	DWORD	adapter ROM address (linear)
 12h	DWORD	adapter RAM address (linear)
 16h	WORD	BANV interrupt
 18h 32	BYTEs	default login group #1
 38h 32	BYTEs	default login group #2
 58h 32	BYTEs	default login group #3
 78h	WORD	semaphore locking support flag
 7Ah	WORD	extended StreetTalk flag
 7Ch	WORD	named pipes support flag
 7Eh	WORD	maximum number of file volumes
 80h	WORD	NetBIOS flag
 82h 60	BYTEs	default network adapter
 BEh 60	BYTEs	default communications driver
 FAh	WORD	maximum number of SPP connections
 FCh	WORD	maximum number of open sockets
 FEh	WORD	communications buffer size (10..60 KB)
100h	WORD	number of mailslots
102h	WORD	maximum number of open files
104h	WORD	maximum number of NetBIOS sessions
106h	WORD	maximum number of NetBIOS commands
108h 20	BYTEs	location directory on drive Z:
11Ch 33	BYTEs	auxiliary configuration area #1 (see #2083)
13Dh 33	BYTEs	auxiliary configuration area #2
15Eh 33	BYTEs	auxiliary configuration area #3

Format of auxiliary configuration area:
Offset	Size	Description	(Table 2083)
 00h 16	BYTEs	item name (no zero terminator if length = 16)
 10h	BYTE	item value type (1=text, else numeric)
 11h 16	BYTEs	item value (string if type 1, else DWORD)
SeeAlso: #2081,#2082
--------N-6106-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_info" - GET INTERFACE STATISTICS
	AH = 06h
	BX = network descriptor (must be allocated and open)
	DS:SI -> 38-byte buffer for interface statistics (see #2084)
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (see #1962)
Desc:	returns the statistics relevant to the particular network interface
	   used by the specified network descriptor
Range:	INT 20 to INT E0, selected by configuration
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=05h"PC/TCP"

Format of PC/TCP interface statistics:
Offset	Size	Description	(Table 2084)
 00h	WORD	interface class (e.g. 802.3)
 02h	WORD	type (manufacturer) of interface
 04h	WORD	interface number
 06h	DWORD	(big-endian) IP address of interface
 0Ah	DWORD	subnet mask
 0Eh	WORD	0001h if interface is up
 10h	DWORD	total packets received
 14h	DWORD	total packets sent
 18h	DWORD	receive errors
 1Ch	DWORD	send errors
 20h	WORD	length of local net address (e.g. 0006h for Ethernet)
 22h	DWORD	pointer to local net address
--------N-6106-------------------------------
INT 61 - Banyan VINES - GET PCCONFIG BASE ADDRESS
	AH = 06h
	DS:DX -> 4-byte buffer for far pointer to PCCONFIG area
Return: AX = 0000h successful
Note:	The PCCONFIG area is located in the code segment of the BANV handler
SeeAlso: AH=05h"VINES",AH=0Bh"VINES"
--------N-6107-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_globalize" - MAKE NET DESCRIPTOR GLOBAL
	AH = 07h
	BX = local network descriptor
Return: CF clear if successful
	    AX = global network descriptor
	CF set on error
	    AX = error code (see #1962)
Notes:	the new network descriptor can be accessed from all processes and is
	  independent of DOS
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=08h"PC/TCP"
SeeAlso: INT 61/AH=29h
--------N-6107-------------------------------
INT 61 - Banyan VINES - GET VINES REVISION NUMBER (LONG)
	AH = 07h
	DS:DX -> 4-byte buffer for result
Return: AX = 0000h successful
	    DS:DX buffer contains revision number as
		10000d * major_ver + 100d * minor_ver + patch_revision
SeeAlso: AH=02h"VINES",AH=04h"VINES",AH=08h"VINES"
--------N-6108-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_release" - CLOSE A NETWORK DESCRIPTOR
	AH = 08h
	BX = network descriptor
Return: CF clear if successful
	    AX = 0000h (BWPCTCP shim)
	CF set on error
	    AX = error code (see #1962)
Range:	INT 20 to INT E0, selected by configuration
Note:	the descriptor will be closed and resources released.  If a stream
	  descriptor, the protocol (FIN etc) is completed unless the
	  non-blocking option has been set.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=09h"PC/TCP"
SeeAlso: INT 63/AH=0Eh"BW-TCP"
--------N-6108-------------------------------
INT 61 - Banyan VINES - CHECK VINES REVISION NUMBER IN RANGE (LONG)
	AH = 08h
	DS:DX -> 4-byte buffer containing the VINES revision number
	    DS:DX buffer contains revision number as
		10000d * major_ver + 100d * minor_ver + patch_revision
Return: AX = status
	    0000h valid version
	    0004h out of range
Note:	For Revision 5.53, the valid range is 4.10(0) to 6.19(99)
SeeAlso: AH=04h"VINES",AH=07h"VINES"
--------N-6109-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_releaseall" - CLOSE ALL NON-GLOBAL DESCRS
	AH = 09h
Return: CF clear
Range:	INT 20 to INT E0, selected by configuration
Notes:	this call performs function 08h on every non-global network descriptor.
	  Global descriptors must be released individually.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=08h"PC/TCP"
SeeAlso: INT 63/AH=0Eh"BW-TCP"
--------N-6109-------------------------------
INT 61 - Banyan VINES - GET VALUE OF AN OS/2 BACKEND VARIABLE
	AH = 09h
	other parameters, if any, unknown
SeeAlso: AH=0Ah"VINES"
--------N-610A-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_send" - ???
	AH = 0Ah
	???
Return: ???
Notes:	this function is described as "unused" in the v2.05 and v2.2
	  documentation
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: AH=0Bh
--------N-610A-------------------------------
INT 61 - Banyan VINES - SET VALUE OF AN OS/2 BACKEND VARIABLE
	AH = 0Ah
	other parameters, if any, unknown
SeeAlso: AH=09h"VINES"
--------N-610B-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_sendto" - ???
	AH = 0Bh
	???
Return: ???
Range:	INT 20 to INT E0, selected by configuration
Notes:	this function is described as "unused" in the v2.05 and v2.2
	  documentation
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: AH=0Ah
--------N-610B-------------------------------
INT 61 - Banyan VINES - SET PCCONFIG IN BACKEND
	AH = 0Bh
	other parameters, if any, unknown
SeeAlso: AH=05h"VINES",AH=06h"VINES"
--------N-610C-------------------------------
INT 61 u - PC/TCP kernel v2.05+ - "net_stat" - GET CONNECTION STATISTICS
	AH = 0Ch
	BX = network descriptor or one of the following:
	    FFFCh for kernel ICMP statistics (see #2088)
	    FFFDh for kernel UDP statistics (see #2087)
	    FFFEh for kernel IP statistics (see #2086)
	    FFFFh for kernel TCP statistics (see #2085)
	DS:DX -> 64-byte buffer
Return: CF clear if successful
	    buffer filled
	CF set on error
	    AX = error code (see #1962)
Notes:	the fields filled in for a network descriptor depend on the protocol
	  family used by that descriptor's connection
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"

Format of PC/TCP kernel TCP statistics:
Offset	Size	Description	(Table 2085)
 00h 16 BYTEs	unused
 10h	DWORD	bytes sent
 14h	DWORD	bytes received
 18h  8 BYTEs	unused
 20h	DWORD	packets sent
 24h	DWORD	packets received
 28h	DWORD	bad checksums
 2Ch	DWORD	count of window ignored by remote
 30h	DWORD	timeouts
 34h	DWORD	resets
 38h	DWORD	duplicate packets
 3Ch	DWORD	retransmits
SeeAlso: #2086,#2087,#2088

Format of PC/TCP kernel IP statistics:
Offset	Size	Description	(Table 2086)
 00h  8 BYTEs	unused
 08h	DWORD	invalid IP header length errors
 0Ch	DWORD	protocol errors (unwanted packets)
 10h	DWORD	duplicate fragments received
 14h	DWORD	bad fragments received
 18h	DWORD	security errors
 1Ch	DWORD	count of bad IP addresses received
 20h	DWORD	packets sent
 24h	DWORD	packets received
 28h	DWORD	bad checksums received
 2Ch	DWORD	total IP protocol errors
 30h	DWORD	fragmentation errors
 34h	DWORD	IP packets discarded + bad security + bad fragments
 38h	DWORD	fragments received
 3Ch  4 BYTEs	unused
SeeAlso: #2085,#2087,#2088

Format of PC/TCP kernel UDP statistics:
Offset	Size	Description	(Table 2087)
 00h 28 BYTEs	unused
 1Ch	DWORD	packets dropped for lack of buffers
 20h	DWORD	packets sent
 24h	DWORD	packets received
 28h	DWORD	bad checksums
 2Ch	DWORD	port not listening errors
 30h  4 BYTEs	unused
 34h	DWORD	truncated receives
 38h  8 BYTEs	unused
SeeAlso: #2085,#2086,#2088

Format of PC/TCP kernel ICMP statistics:
Offset	Size	Description	(Table 2088)
 00h	DWORD	"TimeEx" sent
 04h	DWORD	"TimeEx" received
 08h	DWORD	"ParamProb" sent
 0Ch	DWORD	"ParamProb" received
 10h	DWORD	redirects received
 14h	DWORD	source quenches received
 18h	DWORD	ICMP Echo Requests ("ping") sent
 1Ch	DWORD	ICMP Echo Requests received
 20h	DWORD	packets sent
 24h	DWORD	packets received
 28h	DWORD	bad packets received
 2Ch	DWORD	"DestUn" received
 30h	DWORD	packet send errors
 34h	DWORD	"DestUn" sent
 38h	DWORD	ICMP Echo replies received
 3Ch	DWORD	ICMP Echo replies sent
SeeAlso: #2085,#2086,#2087
--------N-610D-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "is_netnd" - CHECK IF NETWORK DESCRIPTOR VALID
	AH = 0Dh
	BX = possible network descriptor
Return: CF clear if valid
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=08h"PC/TCP"
SeeAlso: INT 61/AH=22h
--------N-610E-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_select" - DETECT READINESS OF NETWORK
	AH = 0Eh
	BX = maximum value of network descriptor for which to return info
	DS:DX -> 32-bit (max) array of bit flags for read readiness
	ES:DI -> 32-bit (max) array of bit flags for write readiness
Return: CF clear
Range:	INT 20 to INT E0, selected by configuration
Notes:	bits in the DS:DX buffer are set if the corresponding network
	  descriptor may be read without blocking; bits in the ES:DI buffer
	  are set if the corresponding network descriptor may be written
	  without blocking.  This implies that the network descriptor has
	  opened correctly and the protocol initialized.
	the installation check consists of testing for the signature "TCPTSR"
	  three bytes beyond the start of the interrupt handler
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-610F-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "get_netversion" - GET SOFTWARE VERSION
	AH = 0Fh
Return: CF clear
	AX = version (AH = major, AL = minor)
	BX = patch level
Notes:	patch levels are no longer used starting with version 2.10; instead,
	  the minor version level is incremented.
	Beame&Whiteside's BWPCTCP v3.0a shim reports version 2.05, but does not
	  set BX
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6110-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_shutdown" - UNINSTALL
	AH = 10h
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
Note:	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6111-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "disable_async" - DISABLE ASYNCHRONOUS HANDLERS
	AH = 11h
Return: CF clear
	AX = previous state
	    0000h async calls were already disabled
	    else  async calls were enabled
SeeAlso: INT 61"PC/TCP",INT 61/AH=12h
--------N-6112-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "enable_async" - ENABLE ASYNCHRONOUS HANDLERS
	AH = 12h
Return: CF clear
	AX = previous state
	    0000h async calls were disabled
	    else  async calls were already enabled
SeeAlso: INT 61"PC/TCP",INT 61/AH=11h
--------N-6113-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_connect" - OPEN A NETWORK CONNECTION
	AH = 13h
	BX = network descriptor (FFFFh for automatic net_getdesc)
	DX = protocol (see #2089)
	DS:SI -> buffer for "addr" structure (see #2090)
Return: CF clear if successful
	    AX = network descriptor used or allocated
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Notes:	resets the connection with AH=19h in various cases
	will wait for protocol on stream connections unless non-blocking was
	  set with AH=20h
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=18h,INT 61/AH=23h
SeeAlso: INT 63/AH=14h"BW-TCP"

(Table 2089)
Values for PC/TCP protocol:
 0001h	raw net (undocumented)
 0002h	raw IP
 0003h	datagram (UDP)
 0004h	stream (TCP)
 0005h	raw ICMP

Format of structure "addr":
Offset	Size	Description	(Table 2090)
 00h	DWORD	Internet address (network order)
 04h	WORD	remote socket number (network order)
 06h	WORD	local socket number (network order) 0000h means "you choose"
 08h	BYTE	protocol (see #2089)
--------N-6114-------------------------------
INT 61 Ou - PC/TCP kernel v2.05 - "net_recv" - NO LONGER SUPPORTED
	AH = 14h
	BX = network descriptor
Return: CF set
	    AX = 0018h (see #1962 at INT 61"PC/TCP")
Notes:	displays error message "Illegal system call!  Please upgrade your
	  PCserver software" to standard output
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=0Ah,INT 61/AH=15h
--------N-6115-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_recvfrom" - ???
	AH = 15h
	???
Return: ???
Notes:	this function is described as "unused" in the v2.2 documentation
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61/AH=0Bh,INT 61/AH=14h
--------N-6116-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_peer" - GET DATA ON REMOTE PEER
	AH = 16h
	BX = network descriptor
	DS:DX -> 9-byte buffer for "addr" structure (see #2090)
Return: CF clear if successful
		 buffer filled
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6117-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_reconfig" - RE-READ KERNEL CONFIGURATION
	AH = 17h
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Notes:	this routine is deprecated in v2.1+ and will eventually be withdrawn;
	  in v2.1+, this function calls AH=01h which should be used instead
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=01h"PC/TCP"
--------N-6118-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_eof" - CLOSE TRANSMIT SIDE OF CONNECTION
	AH = 18h
	BX = network descriptor
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	a TCP "FIN" command is sent and no further data may be transmitted,
	  although the connection remains open
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=13h"PC/TCP"
SeeAlso: INT 63/AH=0Eh"BW-TCP"
--------N-6119-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_abort" - RESET A NETWORK CONNECTION
	AH = 19h
	BX = network descriptor
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Desc:	immediately destroys the specified connection
Note:	send a TCP "RST" command if a stream connection is open
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=24h
--------N-611A-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_write" - WRITE TO THE NETWORK
	AH = 1Ah
	BX = network descriptor
	CX = number of bytes to transmit (0000h allowed)
	DX = send options (see #2091)
	DS:SI -> data to be written
Return: CF clear if successful
	    AX = number of bytes actually written
	    DX = ???
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20h to INT E0h, selected by configuration
Notes:	the installation check consists of testing for the signature "TCPTSR"
	  three bytes beyond the start of the interrupt handler
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Bh,INT 61/AH=1Ch
SeeAlso: INT 63/AH=19h"BW-TCP",INT 63/AH=1Bh"BW-TCP"

Bitfields for PC/TCP send options:
Bit(s)	Description	(Table 2091)
 0	signal "URG"ent data
 3	attempt rerouting on non-stream calls if first attempt fails
 4	send data with PUSH flag (no override of Nagle) (see option 0Ch)
 5	fail rather than truncating datagram
 6	fail rather than blocking
 7	broadcast packet
--------N-611B-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_read" - READ FROM THE NETWORK
	AH = 1Bh
	BX = network descriptor
	CX = maximum number of bytes to read
	DX = receive options (see #2092)
	DS:SI -> buffer for data
	ES:DI -> "addr" structure (see #2090) for remote from which to read
		0000h:0000h for any
Return: CF clear if successful
	    AX = number of bytes actually read
	    DX = ???
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Ah,INT 61/AH=1Dh

Bitfields for PC/TCP receive options:
Bit(s)	Description	(Table 2092)
 1	do not remove data from queue, just copy it
 2	do not copy data, just remove it from queue
 5	fail if datagram would be truncated
 6	do not block, return error if no data available
Note:	special case for UDP: if both 1 and 2 set, return number of datagrams
--------N-611C-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_writeto" - WRITE A DATAGRAM
	AH = 1Ch
	BX = network descriptor
	CX = number of bytes to transmit (0000h allowed)
	DX = send options (see #2091)
	DS:SI -> data to be written
	ES:DI -> "addr" structure (see #2090)
Return: CF clear if successful
	    AX = number of bytes actually written
	    DX = ???
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function differs from AH=1Ah in that the address and socket
	  numbers can be overridden
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Ah,INT 61/AH=1Dh
SeeAlso: INT 63/AH=21h"BW-TCP"
--------N-611D-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_readfrom" - READ A DATAGRAM
	AH = 1Dh
	BX = network descriptor
	CX = maximum number of bytes to read
	DX = receive options (see #2091)
	DS:SI -> buffer for received data
	ES:DI -> 9-byte buffer containing "addr" structure (see #2090)
Return: CF clear if successful
	    AX = number of bytes read
	    DX = ???
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Notes:	this function can read from any host or a designated host depending
	  on settings in the "addr" structure
	only for use with datagram or Raw descriptors
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Bh,INT 61/AH=1Ch
--------N-611E-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_flush" - FLUSH PENDING DATA
	AH = 1Eh
	BX = network descriptor
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
Notes:	bufferred data is transmitted immediately, overriding Nagle's algorithm
	  if necessary
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-611F-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_asynch" - SET UP ASYNCHRONOUS CALL-BACK
	AH = 1Fh
	BX = network descriptor
	CX = event type (see #2093)
	DS:SI -> event handler routine (see #2094)
	ES:DI = 32-bit hint passed to handler
Return: CF clear if successful
	    DS:DX -> previous handler
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	ICMP messages do not trigger events on stream connections
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"

(Table 2093)
Values for PC/TCP event type:
 00h	alarm
 01h	open (successfully opened stream connection)
 02h	receive (data available)
 03h	transmit (ACK received on stream connection)
 04h	transmit flush???
 05h	foreign close (remote host closed data connection)
 06h	close (local host closed connection and protocol is complete)
 07h	error (error code passed to handler as arg)

(Table 2094)
Values PC/TCP user event handler is called with:
	BX = network descriptor
	CX = event type (see #2093)
	DS:DX -> arg
	ES:DI = 32-bit hint value
	STACK:	small stack, possibly the DOS stack
--------N-6120-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "set_option" - SET AN OPTION ON A DESCRIPTOR
	AH = 20h
	BX = network descriptor
	CX = length of buffer (usually 04h)
	DS:DX -> buffer containing option
	SI = (ignored by v2.2-)
	DI = option to set (see #2095)
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	Beame&Whiteside's BWPCTCP shim only supports options 01h and 0Bh; all
	  others return CF clear
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=21h

(Table 2095)
Values for PC/TCP option to get or set:
 01h	set non-blocking mode if non-zero
 02h	timeout of call in milliseconds
 03h	user-defined 4-byte magic cookie (not used by kernel)
 04h	TCP window or UDP buffer count (WORD, unsigned)
 06h	do TCP keep-alives if non-zero
 09h	(v2.1+) set IP precedence
 0Ah	(v2.1+) set IP type of service
 0Bh	use a privileged port if port = 0
 0Ch	turn off TCP PUSH bit and don't flush buffer every write (see AH=1Ah)
Note:	use "C" true or false values for boolean options
--------N-6121-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "get_option" - GET OPTIONS APPLIED TO NET DESCR
	AH = 21h
	BX = network descriptor
	CX = length of buffer
	DS:DX -> buffer for return values
	SI = 0004h (ignored by v2.2-)
	DI = option (see #2095)
Return: CF clear if successful
	    DS:DX -> value (usually 32 bits) returned by selected option
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=20h
--------N-6122-------------------------------
INT 61 u - PC/TCP kernel v2.05+ - "net_getdesc" - ALLOCATE NETWORK DESCRIPTOR
	AH = 22h
Return: CF clear if successful
	    AX = network descriptor
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	the descriptor will be an integer in the range 00h-1Fh, and a DOS call
	  is made to allocate this as a file descriptor.  Hence a number may
	  not refer to a PC/TCP network descriptor and a DOS file handle
	  simultaneously.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=13h,INT 61/AH=29h
--------N-6123-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_listen" - LISTEN FOR INCOMING CONNECTIONS
	AH = 23h
	BX = network descriptor or FFFFh to allocate descriptor
	DX = type of service
	DS:SI -> "addr" structure (see #2090)
Return: CF clear if successful
	    AX = network descriptor
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Notes:	type of service and "addr" structure are as for AH=13h
	any of the address structure can be zero; normally local socket number
	  is filled in prior to call
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=13h
SeeAlso: INT 63/AH=12h"BW-TCP"
--------N-6124-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_abortall" - RESET ALL NETWORK CONNECTIONS
	AH = 24h
Return: always successful
Note:	performs "net_abort" (AH=19h) on all open non-global descriptors
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=19h
--------N-6125-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "ad_res_name" - GET HOST NAME GIVEN ADDRESS
	AH = 25h
	DX,BX = IP address in network order
	CX = length of buffer for name
	DS:SI -> buffer for host name
Return: CF clear if successful
	   buffer filled with ASCIZ host name
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function will use the host table and or DNS to resolve the
	  address, depending on kernel configuration.  Use this call for the
	  normal gethostbyaddr function.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=26h,INT 61/AH=27h
--------N-6126-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "ad_htable" - GET HOST NAME FROM LOCAL TABLE
	AH = 26h
	DX,BX = IP address in network order
	CX = length of buffer
	DS:SI -> buffer for host name
Return: CF clear if successful
	    buffer filled with ASCIZ host name
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Notes:	normally one would use AH=25h instead of this function
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=25h,INT 61/AH=27h
--------N-6127-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "ad_domain" - GET HOST NAME FROM DNS
	AH = 27h
	DX,BX = IP address in network order
	CX = length of buffer
	DS:SI -> buffer for host name
Return: CF clear if successful
	    buffer filled with ASCIZ host name
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	normally one would use AH=25h instead of this function
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=25h,INT 61/AH=26h
--------N-6128-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_swap" - EXCHANGE TWO NETWORK DESCRIPTORS
	AH = 28h
	BX = network descriptor 1
	CX = network descriptor 2
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	the two descriptors will exchange places; both must be local or both
	  global
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6129-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_getglobdesc" - ALLOCATE GLOBAL DESCRIPTOR
	AH = 29h
Return: CF clear if successful
	    AX = network descriptor
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	use this function rather than AH=22h to avoid a DOS call by the PC/TCP
	  kernel; the returned descriptor will be >= 40h and cannot be used
	  with "net_select" (AH=0Eh)
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=07h"PC/TCP"
SeeAlso: INT 61/AH=22h
--------N-612A-------------------------------
INT 61 - PC/TCP kernel v2.05+ - GET CONFIGURATION INFORMATION
	AH = 2Ah
	DS:SI -> 26-byte buffer for configuration information (see #2096)
Return: CF clear
	AX = 0000h
	buffer filled
Notes:	size of buffer may vary with kernel version; 26 bytes is the size for
	  versions 2.05 through 2.2
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"

Format of PC/TCP configuration information:
Offset	Size	Description	(Table 2096)
 00h	BYTE	maximum TCP connections available
 01h	BYTE	maximum UDP connections available
 02h	BYTE	maximum IP connections available
 03h	BYTE	maximum Raw Net connections available
 04h	BYTE	number of TCP connections currently in use
 05h	BYTE	number of UDP connections currently in use
 06h	BYTE	number of IP connections currently in use
 07h	BYTE	number of Raw Net connections currently in use
 08h	WORD	number of local network descriptors active
 0Ah	WORD	number of global network descriptors active
 0Ch	BYTE	maximum header size on network
 0Dh	BYTE	maximum trailer size on network
 0Eh	WORD	size of large packet buffer
 10h	WORD	number of network interfaces attached
 12h	DWORD	milliseconds since kernel started
 16h	DWORD	IP broadcast address
--------N-612B-------------------------------
INT 61 - PC/TCP kernel v2.02+ - "net_alarm" - SET TIMED ASYNCHRONOUS EVENT
	AH = 2Bh
	BX = network descriptor
	CX,DX = time before alarm in milliseconds
	DS:SI -> handler which will receive call (see #2094 at INT 61/AH=1Fh)
	ES:DI = 32-bit cookie passed to handler
Return: CF clear if successful
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Notes:	this function will cause a NET_AS_ALARM to be generated; it is intended
	  for TSRs, etc. to regain control periodically
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6130-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "icmp_ping" - SEND ICMP ECHO REQUEST (PING)
	AH = 30h
	BX,DX = IP address of host
	CX = length of data to send
Return: CF clear if successful (i.e. reply received)
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-61---------------------------------
INT 61 u - PC/TCP kernel v2.05 - NOP for SLIP kernel
	AH = function
	    31h "net_add_route"
	    32h "net_del_route"
	    33h "net_dump_routes"
Notes:	these functions are described as "unused" in the v2.2 documentation
	router configuration can be altered using INT 61/AH=01h
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
--------N-6132-------------------------------
INT 61 U - PC/TCP kernel v2.3 - GET ???
	AH = 32h
Return: AX = ???
Note:	this function is fully re-entrant, and may be called even when another
	  PC/TCP kernel call is already in progress
--------N-6134-------------------------------
INT 61 U - PC/TCP kernel v2.1+ - "icmp_destun" - ???
	AH = 34h
	???
Return: ???
Notes:	this function is described as "reserved" in the v2.2 documentation
	this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
--------N-6150-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_prs_addr" - TRANSLATE NUMERICAL IP ADDRESS
	AH = 50h
	DS:DX -> ASCIZ IP address as "dotted quad" (max 127 chars)
Return: CF clear if successful
	    DX:AX -> IP address
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6151-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_htable" - RESOLVE NAME USING HOST TABLE
	AH = 51h
	CX = size of destination buffer
	DS:DX -> ASCIZ host name (max 127 chars)
	ES:DI -> destination buffer or 0000h:0000h
Return: CF clear if successful
	    DX:AX -> IP address of host
	    destination buffer filled with canonical host name
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function calls DOS, and can fail if the DOS call fails
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6152-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_domain" - RESOLVE NAME USING DNS
	AH = 52h
	CX = size of destination buffer
	DS:DX -> ASCIZ host name (max 127 chars)
	ES:DI -> destination buffer or 0000h:0000h
Return: CF clear if successful
	    DX:AX -> IP address of host
	    destination buffer filled with canonical host name
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function will poll all configured domain name servers if necessary
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6153-------------------------------
INT 61 - PC/TCP kernel v2.05- - "nm_ien116" - RESOLVE HOST NAME USING IEN116
	AH = 53h
	DS:DX -> ASCIZ name to be resolved (max 127 chars)
Return: CF clear if successful
	    DX:AX -> IP address of host
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Range:	INT 20 to INT E0, selected by configuration
Note:	this function is not supported by v2.10+
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6154-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_res_name" - RESOLVE HOST NAME
	AH = 54h
	CX = size of destination buffer
	DS:DX -> ASCIZ host name (max 127 chars)
	ES:DI -> destination buffer or 0000h:0000h
Return: CF clear if successful
	    DX:AX -> IP address of host
	    destination buffer filled with canonical host name
	CF set on error
	    AX = error code (see #1962 at INT 61"PC/TCP")
Note:	this function uses all configured methods in turn to resolve the
	  name (numerical, then host table, then DNS, then IEN116)
BUG:	the SLIP kernel for v2.05 bounds-checks the wrong register, so values
	  greater than 54h in AH may crash the system.	Other kernels may have
	  this bug as well; it has been fixed in the v2.2 SLIPDRV kernel.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=50h,INT 61/AH=51h
SeeAlso: INT 61/AH=52h,INT 61/AH=53h
--------N-6155-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 55h
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-6156-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 56h
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-6157-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 57h
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-6158-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 58h
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-6159-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 59h
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-615A-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 5Ah
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-615B-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 5Bh
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-615C-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 5Ch
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-615D-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 5Dh
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-615E-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 5Eh
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------N-615F-------------------------------
INT 61 U - PC/TCP kernel v2.3 - ???
	AH = 5Fh
	???
Return: ???
SeeAlso: INT 61"PC/TCP"
--------*-62---------------------------------
INT 62 - reserved for user interrupt
--------d-62---------------------------------
INT 62 - Adaptec and OMTI controllers - DRIVE 0 DATA
Notes:	this vector stores the third four bytes of the parameter table for
	  hard disk 0
SeeAlso: INT 60"Adaptec",INT 61"Adaptec",INT 63"Adaptec"
--------b-62---------------------------------
INT 62 - TI Professional PC - OPTION ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:	the low word of this vector contains the segment of the RAM data area
	  to be used by the expansion ROM at F400h:2000h, and the high word
	  contains the length of the data area; this segment and size are
	  both set to 0000h if no ROM is installed at F400h:2000h
SeeAlso: INT 61"TI Professional PC",INT 63"TI Professional"
SeeAlso: INT 66"TI Professional PC"
--------b-62---------------------------------
INT 62 - HP 95LX - USED BY CALCULATOR
SeeAlso: INT 60"HP 95LX"
----------62---------------------------------
INT 62 - MS SQL Server/Sybase DBLIBRARY interface - ???
	AH = function (00h to 07h)
	CX = FFFEh
	DX = FFFFh
	???
Return: ???
Note:	the installation check consists of testing for the string "DBLIBRARY"
	  2 bytes past the interrupt handler
SeeAlso: AH=08h"SQL"
Index:	installation check;MS SQL Server|installation check;Sybase DBLIBRARY
----------62---------------------------------
INT 62 - MPAUSE - ???
	details not yet avialable
Program: MPAUSE is a program by Manfred Michael which appeared in the German
	 _EGA-Handbuch_ from  m&t-Verlag
--------N-62---------------------------------
INT 62 - XFS v1.76 - FILTERED PACKET DRIVER API
Program: XFS is a shareware Network File System client by Robert Juhasz
Desc:	XFS requires a packet driver to operate.  Since it does redirections,
	  etc., it provides its own packet driver entry point, changing the
	  signature string of the original packet driver to "XKT DRVR" so that
	  it will no longer be found by the packet driver installation check
Range:	INT 61 to INT 66, selected by scanning for two consecutive free
	  vectors and hooking the second
Note:	the installation check for this vector is the same as that for the
	  packet driver specification: scan for the signature string "PKT DRVR"
	  three bytes past the interrupt handler
SeeAlso: INT 60"Packet Driver",INT 61"XFS"
--------N-6200-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET PHYSICAL HARDWARE ADDRESS
	AH = 00h
	DS:DX -> 6-byte buffer for address
Return: AX = length of hardware address???
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=01h"ETHDEV",AH=04h"ETHDEV",AH=09h"ETHDEV",AH=0Eh"ETHDEV"
SeeAlso: AH=14h"ETHDEV",AH=18h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------V-620000-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCATE" - CREATE VIRTUAL VIDEO PAGE
	AX = 0000h
	BX = page number (0000h-003Fh)
Return: AX = status (0000h,0001h,0007h,0008h) (see #2097)
Program: FGDRIVER is the external video driver for the shareware
	  Fastgraph/Light by Ted Gruber Software
Notes:	For FGDRIVER v1.10, this function was "FG_GETMODE" (see AX=003Fh);
	  "FG_ALLOCATE" was AX=0042h
	The amount of memory required by the virtual video page depends on the
	  current video mode
	The installation check consists of testing for the signature "FG" ten
	  bytes beyond the start of the interrupt handler
SeeAlso: AX=0001h,AX=0002h,AX=0003h,AX=002Eh
Index:	installation check;Fastgraph/Light

(Table 2097)
Values for FGDRIVER status:
 0000h	successful
 0001h	specified page is a physical or logical page
 0007h	virtual page created/released, but memory control blocks corrupted
 0008h	not enough memory
 0009h	attempt to free a page which was never created
 FFFCh	insufficient memory
 FFFDh	page already created, or exists as physical or virtual page
 FFFEh	invalid page number
 FFFFh	memory manager not initialized
--------V-620001-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCCMS" - CREATE LOGICAL VIDEO PAGE (CONVMEM)
	AX = 0001h
	BX = page number (0001h-003Fh)
Return: AX = status (0000h,FFFCh,FFFDh,FFFEh) (see #2097)
Notes:	For FGDRIVER v1.10, this function was "FG_SETMODE" (see AX=0093h);
	  "FG_ALLOCCMS" was AX=009Dh
	The only operation which is allowed on logical pages is "FG_COPYPAGE"
	  (see AX=0012h)
SeeAlso: AX=0000h,AX=0002h,AX=0003h,AX=0012h,AX=002Eh
--------V-620002-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCEMS" - CREATE LOGICAL VIDEO PAGE (EMS)
	AX = 0002h
	BX = page number (0001h-003Fh)
Return: AX = status (0000h,FFFCh,FFFDh,FFFEh) (see #2097)
Notes:	For FGDRIVER v1.10, this function was "FG_TESTMODE" (see AX=00A7h);
	  "FG_ALLOCEMS" was AX=009Eh
	You must first call "FG_INITEMS" (see AX=004Ch) before using this
	  function
	The only operation which is allowed on logical pages is "FG_COPYPAGE"
	  (see AX=0012h)
SeeAlso: AX=0000h,AX=0001h,AX=0003h,AX=0012h,AX=002Eh,AX=004Ch
--------V-620003-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCXMS" - CREATE LOGICAL VIDEO PAGE (XMS)
	AX = 0003h
	BX = page number (0001h-003Fh)
Return: AX = status (0000h,FFFCh,FFFDh,FFFEh) (see #2097)
Notes:	For FGDRIVER v1.10, this function was "FG_BESTMODE" (see AX=0005h),
	  and "FG_ALLOCXMS" was AX=009Fh
	You must first call "FG_INITXMS" (see AX=004Eh) before using this
	  function
	The only operation which is allowed on logical pages is "FG_COPYPAGE"
	  (see AX=0012h)
SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=0012h,AX=002Eh,AX=004Eh
--------V-620004-----------------------------
INT 62 u - FGDRIVER v1.10,3.03 - "FG_AUTOMODE" - GET VIDEO MODE W/MOST FEATURES
	AX = 0004h
Return: AX = proposed video mode number (see #2111 at AX=0093h)
Program: FGDRIVER is the external video driver for the shareware
	  Fastgraph/Light by Ted Gruber Software
SeeAlso: AX=0005h,AX=003Fh,AX=0093h,AX=00A1h,AX=00A7h
--------V-620005-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BESTMODE" - GET BEST VIDEO MODE GIVEN RESOLUTN
	AX = 0005h
	BX = horizontal resolution
	CX = vertical resolution
	DX = number of video pages required (both physical and virtual)
Return: AX = proposed video mode number or FFFFh if no matching video mode
Notes:	For FGDRIVER v1.10, this function was "FG_EGACHECK" (see AX=0023h);
	   "FG_BESTMODE" was AX=0003h
	You must first call "FG_SVGAINIT" (see AX=00A1h) to get SVGA video
	  modes
SeeAlso: AX=0004h,AX=003Fh,AX=0093h,AX=00A1h,AX=00A7h
--------V-620006-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BOX" - DRAW UNFILLED RECTANGLE
	AX = 0006h
	BX = left column
	CX = right column
	DX = top row
	SI = bottom row
Notes:	For FGDRIVER v1.10, this function was "FG_RESET" (see AX=0081h);
	  "FG_BOX" was AX=00A2h
	The rectangle is drawn in screen space, respecting the clipping region,
	  with edges of the width specified with "FG_BOXDEPTH" (see AX=0007h)
	  (default = 1 is set by "FG_SETMODE")
	This function has no effect in text modes
SeeAlso: AX=0007h,AX=0008h,AX=000Ch,AX=0014h,AX=001Bh,AX=0024h,AX=0076h
--------V-620007-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BOXDEPTH" - SET RECTANGLE BORDER WIDTH
	AX = 0007h
	BX = width of left and right edges in pixels (> 0)
	CX = width of top and bottom edges in pixels (> 0)
Note:	For FGDRIVER v1.10, this function was "FG_CURSOR" (see AX=0013h);
	  "FG_BOXDEPTH" was AX=00A3h
SeeAlso: AX=0006h,AX=0008h
--------V-620008-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BOXX" - XOR HOLLOW RECTANGLE
	AX = 0008h
	BX = left column
	CX = right column
	DX = top row
	SI = bottom row
Notes:	For FGDRIVER v1.10, this function was unused and "FG_BOXX" did not
	  exist yet
	The rectangle is XORed into screen space, respecting the clipping
	  region, with edges of the width specified with "FG_BOXDEPTH"
	  (see AX=0007h) (default = 1 is set by "FG_SETMODE")
	This function has no effect in text modes
SeeAlso: AX=0006h,AX=0007h,AX=001Fh,AX=0020h,AX=0077h
--------V-620009-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BUTTON" - GET JOYSTICK BUTTON STATE
	AX = 0009h
	BX = joystick number (0001h or 0002h)
Return: AX = button states
	    bit 0: top button pressed
	    bit 1: bottom button pressed
Note:	For FGDRIVER v1.10, this function was unused; "FG_BUTTON" was AX=0078h
SeeAlso: AX=0044h,AX=0046h,AX=004Dh,AX=0050h,AX=0061h
--------V-62000A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CAPSLOCK" - GET STATE OF CAPSLOCK KEY
	AX = 000Ah
Return: AX = CapsLock state (0000h off, 0001h on)
Note:	For FGDRIVER v1.10, this function was "FG_GETMAXX" (see AX=003Dh);
	  "FG_CAPSLOCK" was AX=0070h
SeeAlso: AX=006Ch,AX=0088h,AX=008Bh,AX=0094h
--------V-62000B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CHGATTR" - APPLY CURRENT TEXT ATTRIB TO CHARS
	AX = 000Bh
	BX = number of characters to recolor
Notes:	For FGDRIVER v1.10, this function was "FG_GETMAXY" (see AX=003Eh);
	  "FG_CHGATTR" was AX=0035h
	This call is ignored in graphics modes
	Starting at the current text cursor position, the specified number of
	  characters have their attributes to the current text attribute
SeeAlso: AX=000Ch,AX=0030h,AX=008Ah
--------V-62000C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CHGTEXT" - DISPLAY STRING AT CURSOR POSITION
	AX = 000Ch
	CX = length of string
	ES:BX -> string to be displayed
Return: text cursor updated
Notes:	For FGDRIVER v1.10, this function was "FG_XALPHA" (see AX=00B0h);
	  "FG_CHGTEXT" was AX=0036h
	This call is ignored in graphics modes
SeeAlso: AX=000Bh,AX=007Ch
--------V-62000D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CIRCLE" - DRAW UNFILLED CIRCLE
	AX = 000Dh
	BX = radius in horizontal screen space units (> 0)
Notes:	For FGDRIVER v1.10, this function was "FG_YALPHA" (see AX=00B2h);
	  "FG_CIRCLE" was AX=0030h
	The circle is drawn in screen space, centered at the current graphics
	  cursor position
	This call is ignored in text modes
SeeAlso: AX=0006h,AX=0008h,AX=000Eh,AX=0024h,AX=0079h
--------V-62000E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CIRCLEF" - DRAW FILLED CIRCLE
	AX = 000Eh
	BX = radius in horizontal screen space units (> 0)
Notes:	For FGDRIVER v1.10, this function was "FG_XCONVERT" (see AX=00B1h);
	  "FG_CIRCLEF" did not exist yet
SeeAlso: AX=0008h,AX=000Dh,AX=0025h,AX=0078h
--------V-62000F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CLIPMASK" - DISPLAY CLIPPED IMAGE (MASKING MAP)
	AX = 000Fh
	ES:BX -> array containing image stored as a masking map (see #2098)
	CX = number of pixel runs in masking map
	DX = width of masking map in pixels
Notes:	For FGDRIVER v1.10, this function was "FG_YCONVERT" (see AX=00B3h);
	   "FG_CLIPMASK" was AX=0052h
	This call is ignored in text modes and in native EGA and VGA graphics
	  modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
SeeAlso: AX=0010h,AX=001Dh,AX=002Ah,AX=0086h,AX=008Ch,AX=00A5h
--------V-620010-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CLPIMAGE" - DISPLAY CLIPPED IMAGE (BITMAP)
	AX = 0010h
	ES:BX -> mode-specific bitmap
	CX = width of bit map in bytes
	DX = height of bit map in pixel rows
Notes:	For FGDRIVER v1.10, this function was "FG_GETLINES" (see AX=003Bh);
	  "FG_CLPIMAGE" was AX=004Ah
	This call is ignored in text modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
	The current clipping region is used, extended to a byte boundary
SeeAlso: AX=000Fh,AX=0022h,AX=002Ch,AX=0038h,AX=0085h,AX=008Ch,AX=009Ah
--------V-620011-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CLPRECT" - DRAW FILLED RECTANGLE IN SCREEN SPCE
	AX = 0011h
	BX = screen space column of left edge
	CX = screen space column of right edge
	DX = screen space row of top edge
	SI = screen space row of bottom edge
Notes:	For FGDRIVER v1.10, this function was "FG_SETLINES" (see AX=0092h);
	  "FG_CLPRECT" was AX=002Bh
	This call is ignored in text modes
SeeAlso: AX=0006h,AX=000Fh,AX=0010h,AX=0021h,AX=0080h,AX=008Ch
--------V-620012-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_COPYPAGE" - TRANSFER VIDEO PAGE CONTENTS
	AX = 0012h
	BX = source page number (0000h-003Fh)
	CX = destination page number (0000h-003Fh)
Notes:	For FGDRIVER v1.10, this function was unused;"FG_COPYPAGE" was AX=005Fh
	If both source and destination pages are logical pages, they must both
	  be located in the same type (conventional, EMS, XMS) of memory
SeeAlso: AX=0083h,AX=0087h,AX=00A6h,AX=00A9h
--------V-620013-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CURSOR" - SPECIFY WHETHER TEXT CURSR IS VISIBLE
	AX = 0013h
	BX = new state (0000h invisible, 0001h visible)
Notes:	For FGDRIVER v1.10, this function was unused; "FG_CURSOR" was AX=0007h
	This call is ignored in text modes
SeeAlso: AX=000Ch,AX=0045h,AX=0047h,AX=0055h,AX=005Fh,AX=0063h,AX=0068h
SeeAlso: AX=00AFh
--------V-620014-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DASH" - DRAW DASHED LINE TO ABSOLUTE POSITION
	AX = 0014h
	BX = endpoint column
	CX = endpoint row
	DX = dash pattern (set bits cause drawn pixels)
Notes:	For FGDRIVER v1.10, this function was "FG_DEFCOLOR" (see AX=0016h);
	  "FG_DASH" was AX=0027h
	This call is ignored in text modes
	The starting point is the current graphics cursor position; the cursor
	  position is updated
SeeAlso: AX=0015h,AX=001Bh,AX=0076h
--------V-620015-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DASHREL" - DRAW DASHED LINE TO RELATVE POSITION
	AX = 0015h
	BX = endpoint column offset
	CX = endpoint row offset
	DX = dash pattern (set bits cause drawn pixels)
Notes:	For FGDRIVER v1.10, this function was "FG_GETCOLOR" (see AX=0034h);
	  "FG_DASHREL" was AX=0028h
	This call is ignored in text modes
	The starting point is the current graphics cursor position; the cursor
	  position is updated
SeeAlso: AX=0014h,AX=001Ch,AX=0076h
--------V-620016-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DEFCOLOR" - ASSIGN COLOR VALUE TO COLOR INDEX
	AX = 0016h
	BX = color index (0000h-00FFh)
	CX = new color value (0 to maximum color value for current video mode)
Notes:	For FGDRIVER v1.10, this function was "FG_GETINDEX" (see AX=0039h);
	  "FG_DEFCOLOR" was AX=0014h
	This call is ignored in text modes and 256-color graphics modes
SeeAlso: AX=0034h,AX=0039h,AX=008Dh
--------V-620017-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DEFPAGES" - DEF SRC/DEST PAGES FOR BLOCK XFERS
	AX = 0017h
	BX = source page
	CX = destination page
Desc:	specify the source and destination SVGA banks for block transfers on
	  extended video pages
Notes:	For FGDRIVER v1.10, this function was "FG_PALETTE" (see AX=006Fh);
	  "FG_DEFPAGES" did not exist yet
	This function is ignored if the video controller does not support
	  extended pages or the current video mode does not allow them
SeeAlso: AX=0012h,AX=00A9h
--------V-620018-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DISPFILE" - DISPLAY STORED IMAGE
	AX = 0018h
	ES:BX -> ASCIZ filename
	CX = image width in pixels (> 0)
	DX = image format
	    0000h Fastgraph standard pixel run format
	    0001h packed pixel run format
Notes:	For FGDRIVER v1.10, this function was "FG_PALETTES" (see AX=0070h);
	  "FG_DISPFILE" was AX=004Fh
	This call is ignored in text modes
	The image is displayed with its lower left corner at the current
	  graphics cursor position
SeeAlso: AX=0019h,AX=001Ah,AX=009Ah,AX=009Bh,AX=009Ch
--------V-620019-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DISPLAY" - DISPLAY IMAGE (STD PIXEL RUN FORMAT)
	AX = 0019h
	ES:BX -> pixel run map (pairs of bytes: color index, count)
	CX = number of pixel runs to display
	DX = width of image in pixels (> 0)
Notes:	For FGDRIVER v1.10, this function was "FG_SETATTR" (see AX=008Ah);
	  "FG_DISPLAY" was AX=004Dh
	This call is ignored in text modes
	The image is displayed with its lower left corner at the current
	  graphics cursor position
SeeAlso: AX=0018h,AX=001Ah,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62001A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DISPLAYP" - DISPLAY IMAGE (PACKED PIXEL RUNS)
	AX = 001Ah
	ES:BX -> pixel run map (trios of bytes: colors, count1, count2; colors
		  contains the color for the first run in its high nybble and
		  the color for the second run in its low nybble)
	CX = number of pixel runs to display
	DX = width of image in pixels (> 0)
Notes:	For FGDRIVER v1.10, this function was "FG_SETCOLOR" (see AX=008Dh);
	  "FG_DISPLAYP" was AX=004Eh
	This call is ignored in text modes
	The image is displayed with its lower left corner at the current
	  graphics cursor position
SeeAlso: AX=0018h,AX=0019h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62001B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAW" - DRAW SOLID LINE TO ABSOLUTE POSITION
	AX = 001Bh
	BX = endpoint column
	CX = endpoint row
Notes:	For FGDRIVER v1.10, this function was "FG_SETRGB" (see AX=0096h);
	  "FG_DRAW" was AX=0025h
	This call is ignored in text modes
	The starting point is the current graphics cursor position; the cursor
	  position is updated
SeeAlso: AX=0014h,AX=001Eh,AX=001Fh,AX=0024h,AX=0076h,AX=0077h
--------V-62001C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWMAP" - DISPLAY MODE-INDEPENDENT BIT MAP
	AX = 001Ch
	ES:BX -> bitmap (each set bit is pixel drawn in current color)
	CX = width of bitmap in bytes
	DX = height of bitmap in pixel rows
Note:	For FGDRIVER v1.10, this function was "FG_GETRGB" (see AX=0042h);
	  "FG_DRAWMAP" was AX=0047h
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=0038h,AX=007Eh,AX=0085h
--------V-62001D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWMASK" - DISPLAY IMAGE (MASKING MAP)
	AX = 001Dh
	ES:BX -> array containing image stored as a masking map (see #2098)
	CX = number of pixel runs in masking map
	DX = width of masking map in pixels
Notes:	For FGDRIVER v1.10, this function was "FG_MAPRGB" (see AX=005Ah);
	  "FG_DRAWMASK" was AX=0051h
	This call is ignored in text modes and in native EGA and VGA graphics
	  modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=0086h,AX=008Ch

Format of FGDRIVER masking map:
Offset	Size	Description	(Table 2098)
 00h	BYTE	length of first "protect" run (pixels remain unchanged)
 01h	BYTE	length of first "zero" run (pixels set to background color)
 02h	BYTE	length of second "protect" run
 03h	BYTE	length of second "zero" run
	...
--------V-62001E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWREL" - DRAW SOLID LINE TO RELATIVE POSITION
	AX = 001Eh
	BX = endpoint column offset
	CX = endpoint row offset
Notes:	For FGDRIVER v1.10, this function was "FG_ERASE" (see AX=0026h);
	  "FG_DRAWREL" was AX=0026h
	This call is ignored in text modes
	The starting point is the current graphics cursor position; the cursor
	  position is updated
SeeAlso: AX=0006h,AX=000Dh,AX=001Bh,AX=001Fh,AX=0024h,AX=0076h
--------V-62001F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWRELX" - XOR SOLID LINE TO RELATIVE POSITION
	AX = 001Fh
	BX = endpoint column offset
	CX = endpoint row offset
Desc:	draw a solid line, XORing each pixel onto the screen
Notes:	For FGDRIVER v1.10, this function was "FG_POINT" (see AX=0076h);
	  "FG_DRAWRELX" did not exist yet
	This call is ignored in text modes
	The starting point is the current graphics cursor position; the cursor
	  position is updated
SeeAlso: AX=0006h,AX=000Dh,AX=001Bh,AX=001Eh,AX=0024h,AX=0077h
--------V-620020-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWX" - XOR SOLID LINE TO ABSOLUTE POSITION
	AX = 0020h
	BX = endpoint column
	CX = endpoint row
Desc:	draw a solid line, XORing each pixel onto the screen
Notes:	For FGDRIVER v1.10, this function was "FG_GETPIXEL" (see AX=0041h);
	  "FG_DRAWX" did not exist yet
	This call is ignored in text modes
	The starting point is the current graphics cursor position; the cursor
	  position is updated
SeeAlso: AX=001Bh,AX=001Fh,AX=0076h
--------V-620021-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRECT" - DRAW DITHERED RECTANGLE IN SCRN SPACE
	AX = 0021h
	BX = screen space column of left edge
	CX = screen space column of right edge
	DX = screen space row of top edge
	SI = screen space row of bottom edge
	ES:DI -> dithering matrix (video-mode dependent)
Notes:	For FGDRIVER v1.10, this function was "FG_GETXPOS" (see AX=0045h);
	  "FG_DRECT" was AX=002Ch
	This call is ignored in text modes
SeeAlso: AX=0006h,AX=0008h,AX=0011h,AX=0031h,AX=0072h,AX=0080h
--------V-620022-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRWIMAGE" - DISPLAY BITMAPPED IMAGE
	AX = 0022h
	ES:BX -> video mode-specific bitmap
	CX = width of bitmap in bytes
	DX = height of bitmap in pixel rows
Notes:	For FGDRIVER v1.10, this function was "FG_GETYPOS" (see AX=0047h);
	  "FG_DRWIMAGE" was AX=0049h
	The image will be drawn with its lower left corner at the current
	  cursor position (either text or graphics)
SeeAlso: AX=0010h,AX=002Ch,AX=0038h,AX=007Eh,AX=0085h
--------V-620023-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_EGACHECK" - GET INFO ABOUT ACTIVE EGA DISPLAY
	AX = 0023h
Return: AX = number of 64K banks of video memory, or 0000h if no EGA or EGA
	      without an Enhanced Color Display
Note:	For FGDRIVER v1.10, this function was "FG_MOVE" (see AX=0068h);
	  "FG_EGACHECK" was AX=0005h
SeeAlso: AX=00A2h
--------V-620024-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ELLIPSE" - DRAW UNFILLED ELLIPSE IN SCRN SPACE
	AX = 0024h
	BX = horizontal semi-axis length in screen space units
	CX = vertical semi-axis length in screen space units
Notes:	For FGDRIVER v1.10, this function was "FG_MOVEREL" (see AX=0069h);
	  "FG_ELLIPSE" was AX=002Dh
	This call is ignored in text modes
	The ellipse is centered at the current graphics cursor position
SeeAlso: AX=0006h,AX=000Dh,AX=0025h,AX=0076h,AX=0079h
--------V-620025-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ELLIPSEF" - DRAW FILLED ELLIPSE IN SCREEN SPACE
	AX = 0025h
	BX = horizontal semi-axis length in screen space units
	CX = vertical semi-axis length in screen space units
Notes:	For FGDRIVER v1.10, this function was "FG_DRAW" (see AX=001Bh);
	  "FG_ELLIPSEF" did not exist yet
	This call is ignored in text modes
	The ellipse is centered at the current graphics cursor position
SeeAlso: AX=0006h,AX=000Eh,AX=0024h,AX=0076h,AX=0078h
--------V-620026-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ERASE" - CLEAR THE ACTIVE VIDEO PAGE
	AX = 0026h
Note:	For FGDRIVER v1.10, this function was "FG_DRAWREL" (see AX=001Eh);
	  "FG_ERASE" was AX=001Eh
	This function sets each pixel to 0 in graphics modes, each character
	  cell to a blank with a gray foreground attribute in text modes
SeeAlso: AX=0027h,AX=0029h,AX=002Bh
--------V-620027-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FADEIN" - FADE IN HIDDEN PAGE
	AX = 0027h
	BX = delay (0000h = fastest possible fade-in)
Notes:	For FGDRIVER v1.10, this function was "FG_DASH" (see AX=0014h);
	  "FG_FADEIN" was AX=0064h
	The current hidden page is copied to the current visible page in small
	  random sections to produce a fade-in effect
	This call is ignored in text modes
SeeAlso: AX=0026h,AX=0028h,AX=0029h
--------V-620028-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FADEOUT" - FADE OUT TO CURRENT COLOR
	AX = 0028h
	BX = delay (0000h = fastest possible fade-out)
Notes:	For FGDRIVER v1.10, this function was "FG_DASHREL" (see AX=0015h);
	  "FG_FADEOUT" was AX=0065h
	The current visible page is filled with pixels of the current color in
	  small random sections to give a fade-out effect
	This call is ignored in text modes
SeeAlso: AX=0026h,AX=0027h,AX=0029h
--------V-620029-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FILLPAGE" - FILL THE ACTIVE VIDEO PAGE
	AX = 0029h
Desc:	fill the active video page with pixels of the current color (graphics
	  modes) or the block character DBh with the current character
	  attributes (text modes)
Note:	For FGDRIVER v1.10, this function was "FG_SETCLIP" (see AX=008Ch);
	  "FG_FILLPAGE" did not exist yet
SeeAlso: AX=0026h,AX=0027h,AX=0028h
--------V-62002A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FLIPMASK" - DISPLAY INV CLIPPED IMAGE (MASKMAP)
	AX = 002Ah
	ES:BX -> array containing image stored as a masking map (see #2098)
	CX = number of pixel runs in masking map
	DX = width of masking map in pixels
Notes:	For FGDRIVER v1.10, this function was "FG_RECT" (see AX=0080h);
	  "FG_FLIPMASK" was AX=0054h
	This call is ignored in text modes and in native EGA and VGA graphics
	  modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ch,AX=0086h,AX=008Ch,AX=00A5h
--------V-62002B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FLOOD" - FLOOD FILL ARBITRARY CLOSED REGION
	AX = 002Bh
	BX = starting column
	CX = starting row
Desc:	fill the bounded region around the specified point (respecting clipping
	  region) with the currrent color
Notes:	For FGDRIVER v1.10, this function was "FG_CLPRECT" (see AX=0011h);
	  "FG_FLOOD" did not exist yet
	This function is ignored in text modes
SeeAlso: AX=0026h,AX=006Eh
--------V-62002C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FLPIMAGE" - DISPLAY INV CLIPPED IMAGE (BITMAP)
	AX = 002Ch
	ES:BX -> mode-specific bitmap
	CX = width of bit map in bytes
	DX = height of bit map in pixel rows
Notes:	For FGDRIVER v1.10, this function was "FG_DRECT" (see AX=0021h);
	  "FG_FLPIMAGE" was AX=004Ch
	This call is ignored in text modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
	The current clipping region is used, extended to a byte boundary
SeeAlso: AX=0010h,AX=0022h,AX=002Ah,AX=0038h,AX=0085h,AX=008Ch,AX=009Ah
--------V-62002D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FONTSIZE" - SPECIFY FONT SIZE FOR TEXT OUTPUT
	AX = 002Dh
	BX = desired character height in scan lines (8, 14, 16)
Notes:	For FGDRIVER v1.10, this function was "FG_ELLIPSE" (see AX=0024h);
	  "FG_FONTSIZE" did not exist yet
	This call is ignored if the current mode is not a VGA or SVGA graphics
	  mode, or the specified character height is not 8, 14, or 16
SeeAlso: AX=007Ch
--------V-62002E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FREEPAGE" - FREE VIRTUAL OR LOGICAL VIDEO PAGE
	AX = 002Eh
	BX = page number (0000h-003Fh)
Return: AX = status (0000h,0001h,0007h,0009h) (see #2097)
Note:	For FGDRIVER v1.10, this function was "FG_POLYGON" (see AX=0079h);
	  "FG_FREEPAGE" was AX=0043h
SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=0003h
--------V-62002F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETADDR" - GET SEGMENT OF ACTIVE VIDEO PAGE
	AX = 002Fh
Return: AX = segment of active video page
Note:	For FGDRIVER v1.10, this function was "FG_PAINT" (see AX=006Eh);
	  "FG_GETADDR" was AX=0044h
SeeAlso: AX=0036h,AX=008Fh
--------V-620030-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETATTR" - GET CHARACTER ATTRIB FOR POSITION
	AX = 0030h
	BX = row
	CX = column
Return: AX = character attribute at specified location on active video page
Notes:	For FGDRIVER v1.10, this function was "FG_CIRCLE" (see AX=000Dh);
	  "FG_GETATTR" was AX=0037h
	This call is ignored in graphics modes
SeeAlso: AX=000Bh,AX=0032h,AX=0034h,AX=008Ah
--------V-620031-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETBLOCK" - GRAB RECTANGLE OF DISPLAY
	AX = 0031h
	ES:BX -> buffer for screen contents
	CX = leftmost column
	DX = rightmost column
	SI = top row
	DI = bottom row
Notes:	For FGDRIVER v1.10, this function was unused, and "FG_GETBLOCK" did not
	  exist yet
	In text modes, coordinates are character positions; in graphics modes,
	  they are defined in screen space, and the left and right edges are
	  adjusted to a byte boundary if necessary
	Use "FG_IMAGESIZ" (see AX=004Bh) to determine the required buffer size
SeeAlso: AX=0038h,AX=004Bh,AX=007Dh
--------V-620032-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETCHAR" - GET CHARACTER FOR SCREEN POSITION
	AX = 0032h
	BX = row
	CX = column
Return: AX = character at specified location on active video page
Notes:	For FGDRIVER v1.10, this function was "FG_TEXT" (see AX=00A8h);
	  "FG_GETCHAR" was AX=0038h
	This call is ignored in graphics modes
SeeAlso: AX=000Bh,AX=0030h,AX=007Ch,AX=008Ah,AX=00A8h
--------V-620033-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETCLOCK" - GET CLOCK TICKS SINCE MIDNIGHT
	AX = 0033h
Return: DX:AX = number of clock ticks since midnight
Note:	For FGDRIVER v1.10, this function was "FG_LOCATE" (see AX=0055h);
	  "FG_GETCLOCK" was AX=0099h
SeeAlso: INT 1A/AH=00h
--------V-620034-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETCOLOR" - GET CURRENT TEXT ATTRIBUTE
	AX = 0034h
Return: AX = current text attribute or color index (graphics modes)
Note:	For FGDRIVER v1.10, this function was "FG_WHERE" (see AX=00AFh);
	  "FG_GETCOLOR" was AX=0015h
SeeAlso: AX=000Bh,AX=0030h,AX=008Ah
--------V-620035-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETDACS" - GET VIDEO DAC CONTENTS
	AX = 0035h
	CX = number of DAC registers to return (0001h to 0100h)
	DX = starting DAC register number (0000h to 00FFh)
	ES:BX -> buffer for DAC red/green/blue triples
Notes:	For FGDRIVER v1.10, this function was "FG_CHGATTR" (see AX=000Bh);
	  "FG_GETDACS" was AX=00A4h
	The register number wraps back to zero after FFh
SeeAlso: AX=0042h,AX=006Fh,AX=008Eh
--------V-620036-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETENTRY" - GET PAGE TYPE AND ADDRESS
	AX = 0036h
	ES:BX -> variable pointer record (see #2099)
	CX = page number (00h-3Fh)
Notes:	For FGDRIVER v1.10, this function was "FG_CHGTEXT" (see AX=000Ch);
	  "FG_GETENTRY" did not exist yet
	Page addresses are segments for pages stored in conventional memory
	  (including physical and virtual pages), and EMS or XMS handles for
	  pages stored in EMS or XMS
SeeAlso: AX=0000h,AX=008Fh

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2099)
 00h	WORD	segment of WORD buffer for page address
 02h	WORD	offset of WORD buffer for page address
 04h	WORD	segment of WORD buffer for page type (se #2100)
 06h	WORD	offset of WORD buffer for page type

(Table 2100)
Values for FGDRIVER page type:
 0000h	unallocated
 0001h	physical
 0002h	virtual
 0003h	logical page, stored in expanded memory (EMS)
 0004h	logical page, stored in extended memory (XMS)
 0005h	logical page, stored in conventional memory
--------V-620037-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETHPAGE" - GET CURRENT HIDDEN VIDEO PAGE NUM
	AX = 0037h
Return: AX = current hidden video page number (0000h-003Fh)
Note:	For FGDRIVER v1.10, this function was "FG_GETATTR" (see AX=0030h);
	  "FG_GETHPAGE" was AX=0040h
SeeAlso: AX=0040h,AX=0043h,AX=0091h
--------V-620038-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETIMAGE" - STORE IMAGE AS BITMAP
	AX = 0038h
	ES:BX -> buffer for video mode-specific bitmap
	CX = width of bitmap in bytes
	DX = height of bitmap in pixel rows
Note:	For FGDRIVER v1.10, this function was "FG_GETCHAR" (see AX=0032h);
	  "FG_GETIMAGE" was AX=0048h
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=007Eh,AX=0085h
--------V-620039-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETINDEX" - GET COLOR VALUE FOR COLOR INDEX
	AX = 0039h
	BX = color index (0000h to 00FFh)
Return: AX = color value for specified color index
Notes:	For FGDRIVER v1.10, this function was unused;"FG_GETINDEX" was AX=0016h
	This call returns the value passed to it in text and 256-color
	  graphics modes
SeeAlso: AX=0016h,AX=0034h
--------V-62003A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETKEY" - GET NEXT KEYSTROKE
	AX = 003Ah
	ES:BX -> variable pointer record (see #2101)
Return: (after next keystroke if no typeahead) variables updated
Note:	For FGDRIVER v1.10, this function was unused; "FG_GETKEY" was AX=006Eh
SeeAlso: AX=000Ah,AX=0051h,AX=0054h,AX=00ADh,INT 16/AH=00h

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2101)
 00h	WORD	segment of BYTE buffer for ASCII keycode
 02h	WORD	offset of BYTE buffer for ASCII keycode
 04h	WORD	segment of BYTE buffer for extended keycode
 06h	WORD	offset of BYTE buffer for extended keycode
--------V-62003B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETLINES" - GET TEXT ROWS FOR CURR VIDEO MODE
	AX = 003Bh
Return: AX = number of text rows on screen in current video mode
Note:	For FGDRIVER v1.10, this function was unused;"FG_GETLINES" was AX=0010h
SeeAlso: AX=0092h,AX=00A2h
--------V-62003C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMAP" - STORE IMAGE AS MODE-INDEPENDNT BITMAP
	AX = 003Ch
	ES:BX -> buffer for video mode-independent bitmap
	CX = width of bitmap in bytes
	DX = height of bitmap in pixel rows
Return: each bit in bitmap is set if corresponding pixel is of the current
	  color, cleared otherwise
Notes:	For FGDRIVER v1.10, this function was "FG_GETPAGE" (see AX=0040h);
	  "FG_GETMAP" was AX=0046h
	This call is ignored in text modes
SeeAlso: AX=0010h,AX=001Ch,AX=0022h
--------V-62003D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMAXX" - GET MAXIMUM COLUMN IN SCREEN SPACE
	AX = 003Dh
Return: AX = maximum X coordinate in screen space
	    (or character space if in text mode)
Note:	For FGDRIVER v1.10, this function was "FG_SETPAGE" (see AX=0095h);
	  "FG_GETMAXX" was AX=000Ah
SeeAlso: AX=003Eh,AX=00A1h
--------V-62003E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMAXY" - GET MAXIMUM ROW IN SCREEN SPACE
	AX = 003Eh
Return: AX = maximum Y coordinate in screen space
		(or character space if in text mode)
Note:	For FGDRIVER v1.10, this function was "FG_GETVPAGE" (see AX=0043h);
	  "FG_GETMAXY" was AX=000Bh
SeeAlso: AX=003Dh,AX=00A1h
--------V-62003F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMODE" - GET CURRENT VIDEO MODE NUMBER
	AX = 003Fh
	ES:BX -> WORD ???
Return: AX = current video mode number
Note:	For FGDRIVER v1.10, this function was "FG_SETVPAGE" (see AX=0098h);
	  "FG_GETMODE" was AX=0000h
SeeAlso: AX=0093h
--------V-620040-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETPAGE" - GET ACTIVE VIDEO PAGE NUMBER
	AX = 0040h
Return: AX = active video page (0000h-003Fh)
Note:	For FGDRIVER v1.10, this function was "FG_GETHPAGE" (see AX=0037h);
	  "FG_GETPAGE" was AX=003Ch
SeeAlso: AX=002Fh,AX=0036h,AX=0037h,AX=0043h,AX=0095h
--------V-620041-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETPIXEL" - GET COLOR OF SPECIFIED PIXEL
	AX = 0041h
	BX = column in screen space
	CX = row in screen space
Return: AX = color value of pixel (0 to num_colors-1)
	    0000h in text modes
Note:	For FGDRIVER v1.10, this function was "FG_SETHPAGE" (see AX=0091h);
	  "FG_GETPIXEL" was AX=0020h
SeeAlso: AX=0030h,AX=0032h,AX=0076h,AX=0077h
--------V-620042-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETRGB" - GET VIDEO DAC REGISTER CONTENTS
	AX = 0042h
	ES:BX -> variable pointer record (see #2102)
	CX = DAC register number
Return: variables updated
Notes:	For FGDRIVER v1.10, this function was "FG_ALLOCATE" (see AX=0000h);
	  "FG_GETRGB" was AX=001Ch
	This call is ignored in text modes and CGA/EGA video modes (since
	  they do not use DAC registers)
SeeAlso: AX=0035h,AX=006Fh,AX=008Eh

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2102)
 00h	WORD	segment of WORD buffer for red component of DAC register
 02h	WORD	offset of WORD buffer for red component
 04h	WORD	segment of WORD buffer for green component of DAC register
 06h	WORD	offset of WORD buffer for green component
 08h	WORD	segment of WORD buffer for blue component of DAC register
 0Ah	WORD	offset of WORD buffer for blue component
--------V-620043-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETVPAGE" - GET VISIBLE VIDEO PAGE NUMBER
	AX = 0043h
Return: AX = visible video page (0000h-003Fh)
Note:	For FGDRIVER v1.10, this function was "FG_FREEPAGE" (see AX=002Eh);
	  "FG_GETVPAGE" was AX=003Eh
SeeAlso: AX=0037h,AX=0040h,AX=0098h
--------V-620044-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETXJOY" - GET HORIZONTAL POSITION OF JOYSTICK
	AX = 0044h
	BX = joystick number (0001h or 0002h)
Return: AX = horizontal position of joystick
	    FFFFh if joystick uninitialized or not present
Notes:	For FGDRIVER v1.10, this function was "FG_GETADDR" (see AX=002Fh);
	  "FG_GETXJOY" was AX=0076h
	The actual coordinates are processor- and joystick-dependent
	You must call "FG_INITJOY" (AX=004Dh) before using this function
SeeAlso: AX=0009h,AX=0046h,AX=004Dh,AX=0050h,AX=0061h
--------V-620045-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETXPOS" - GET GRAPHICS CURSOR COLUMN
	AX = 0045h
Return: AX = screen space X coordinate of graphics cursor position
Note:	For FGDRIVER v1.10, this function was "FG_RESIZE" (see AX=0082h);
	  "FG_GETXPOS" was AX=0021h
SeeAlso: AX=0047h,AX=0068h,AX=0069h
--------V-620046-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETYJOY" - GET VERTICAL POSITION OF JOYSTICK
	AX = 0046h
	BX = joystick number (0001h or 0002h)
Return: AX = vertical position of joystick
	    FFFFh if joystick uninitialized or not present
Notes:	For FGDRIVER v1.10, this function was "FG_GETMAP" (see AX=003Ch);
	  "FG_GETYJOY" was AX=0077h
	The actual coordinates are processor- and joystick-dependent
	You must call "FG_INITJOY" (AX=004Dh) before using this function
SeeAlso: AX=0009h,AX=0044h,AX=004Dh,AX=0050h,AX=0061h
--------V-620047-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETYPOS" - GET GRAPHICS CURSOR ROW
	AX = 0047h
Return: AX = screen space Y coordinate of graphics cursor position
Note:	For FGDRIVER v1.10, this function was "FG_DRAWMAP" (see AX=001Ch);
	  "FG_GETYPOS" was AX=0022h
SeeAlso: AX=0045h,AX=0068h,AX=0069h
--------V-620048-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_HUSH" - STOP ASYNCHRONOUS SOUND IMMEDIATELY
	AX = 0048h
Notes:	For FGDRIVER v1.10, this function was "FG_GETIMAGE" (see AX=0038h);
	  "FG_HUSH" was AX=008Eh
	This function immediately stops any sounds started with "FG_MUSICB",
	  "FG_SOUNDS", or "FG_VOICES"; it is ignored if no asynchronous sound
	  is playing
SeeAlso: AX=0049h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-620049-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_HUSHNEXT" - STOP ASYNCHRONOUS SOUND
	AX = 0049h
Program: FGDRIVER is the external video driver for the shareware
	  Fastgraph/Light by Ted Gruber Software
Notes:	For FGDRIVER v1.10, this function was "FG_DRWIMAGE" (see AX=0022h);
	  "FG_HUSHNEXT" was AX=008Fh
	This function stops any sounds started with "FG_MUSICB", "FG_SOUNDS",
	  or "FG_VOICES" after the current repetition completes; it is ignored
	  unless asynchronous sound is continuous
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-62004A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_IMAGEBUF" - SPECIFY TEMPORARY IMAGE BUFFER
	AX = 004Ah
	ES:BX -> buffer to be used when creating or displaying GIF/PCX/PPR/SPR
		  images
	CX = size of buffer in bytes or 0000h to use internal buffer
Notes:	For FGDRIVER v1.10, this function was "FG_CLPIMAGE" (see AX=0010h);
	  "FG_IMAGEBUF" did not exist yet
	Fastgraph's internal buffer is 4096 bytes; this function allows the
	  application to define a larger buffer which will typically speed
	  processing
SeeAlso: AX=0057h,AX=0058h,AX=0059h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62004B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_IMAGESIZ" - DETERMINE IMAGE STORAGE REQUIREMENT
	AX = 004Bh
	BX = image width in pixels
	CX = image height in pixels
Note:	For FGDRIVER v1.10, this function was "FG_REVIMAGE" (see AX=0085h);
	  "FG_IMAGESIZ" was AX=0062h
Return: DX:AX = size in bytes of mode-specific bitmap for current video mode
SeeAlso: AX=0031h,AX=007Dh
--------V-62004C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INITEMS" - INITIALIZE EXPANDED MEMORY USE
	AX = 004Ch
Return: AX = status
	    0000h successful
	    FFFFh expanded memory manager inaccessible or not installed
Notes:	For FGDRIVER v1.10, this function was "FG_FLPIMAGE" (see AX=002Ch);
	  "FG_INITEMS" was AX=00A0h
SeeAlso: AX=0002h,AX=004Eh
--------V-62004D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INITJOY" - INITIALIZE JOYSTICK USE
	AX = 004Dh
	BX = joystick number (0001h or 0002h)
Return: AX = status
	    0000h successful
	    FFFFh joystick not connected or no game port
Notes:	For FGDRIVER v1.10, this function was "FG_DISPLAY" (see AX=0019h);
	  "FG_INITJOY" was AX=0075h
	Fastgraph assumes that the requested joystick is centered at the time
	  this function is called
SeeAlso: AX=0009h,AX=0044h,AX=0046h,AX=0050h,AX=0061h
--------V-62004E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INITXMS" - INITIALIZE EXTENDED MEMORY USE
	AX = 004Eh
Return: AX = status
	    0000h successful
	    FFFFh extended memory manager inaccessible or not installed
Note:	For FGDRIVER v1.10, this function was "FG_DISPLAYP" (see AX=001Ah);
	  "FG_INITXMS" was AX=00A1h
SeeAlso: AX=0003h,AX=004Ch
--------V-62004F-----------------------------
INT 62 u - FDGRIVER v3.03 - "FG_INSIDE" - CHECK IF POINT INSIDE CONVEX POLYGON
	AX = 004Fh
	ES:BX -> vertex array
	CX = number of vertices
	DX = screen space column of point to test
	SI = screen space row of point to test
Return: AX = result
	    0000h point is outside polygon
	    0001h point is inside polygon
		 undefined if not a convex polygon
Note:	For FGDRIVER v1.10, this function was "FG_DISPFILE" (see AX=0018h);
	  "FG_INSIDE" did not exist yet
SeeAlso: AX=0078h,AX=0079h,AX=007Ah
--------V-620050-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INTJOY" - GET KEYCODES CORRESP TO JOYSTICK POS
	AX = 0050h
	CX = joystick number (0001h or 0002h)
	ES:BX -> variable pointer record (see #2103)
Notes:	For FGDRIVER v1.10, this function was "FG_PATTERN" (see AX=0072h);
	  "FG_INTJOY" was AX=0079h
	If the indicated joystick has not been initialized with AX=0075h, both
	  the button code and joystick position will be set to 00h
	If either button is pressed, a button code of 0Dh is returned;
	  otherwise, a button code of 00h is returned
SeeAlso: AX=0009h,AX=0044h,AX=0046h,AX=004Dh,AX=0061h

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2103)
 00h	WORD	segment of BYTE buffer for button code
 02h	WORD	offset of BYTE buffer for button code
 04h	WORD	segment of BYTE buffer for joystick position
 06h	WORD	offset of BYTE buffer for joystick position
--------V-620051-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INTKEY" - GET KEYSTROKE, NO WAIT
	AX = 0051h
	ES:BX -> variable pointer record (see #2104)
Return: variables updated
Notes:	For FGDRIVER v1.10, this function was "FG_DRAWMASK" (see AX=001Dh);
	  "FG_INTKEY" was AX=006Fh
	If the keyboard buffer is empty, both the ASCII and extended keycodes
	  are set to 00h
SeeAlso: AX=000Ah,AX=003Ah,AX=0054h,AX=00ADh,INT 16/AH=01h

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2104)
 00h	WORD	segment of BYTE buffer for ASCII keycode
 02h	WORD	offset of BYTE buffer for ASCII keycode
 04h	WORD	segment of BYTE buffer for extended keycode
 06h	WORD	offset of BYTE buffer for extended keycode
--------V-620052-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_JUSTIFY" - SET TEXT OUTPUT JUSTIFICATION
	AX = 0052h
	BX = horizontal justification
	      (00h centered, 01h right-justified, FFh left-justified)
	CX = vertical justification
			(00h centered, 01h top of characters, FFh bottom of chars)
Note:	For FGDRIVER v1.10, this function was "FG_CLIPMASK" (see AX=000Fh);
	  "FG_JUSTIFY" did not exist yet
SeeAlso: AX=000Ch,AX=002Dh,AX=007Ch
--------V-620053-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_KBINIT" - ENABLE/DISABLE LOW-LEVEL KBD HANDLER
	AX = 0053h
	BX = new state (0000h disabled, 0001h enabled)
Notes:	For FGDRIVER v1.10, this function was "FG_REVMASK" (see AX=0086h);
	  "FG_KBINIT" did not exist yet
	When the low-level handler is enabled, "FG_GETKEY", "FG_INTKEY",
	  "FG_WAITKEY", and all other functions calling DOS or BIOS keyboard
	  services become unavailable
SeeAlso: AX=0054h
--------V-620054-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_KBTEST" - CHECK WHETHER SPECIFIED KEY PRESSED
	AX = 0054h
	BX = scan code of desired key
Return: AX = state
	    0000h key is not pressed
	    0001h key is currently pressed
Notes:	For FGDRIVER v1.10, this function was "FG_FLIPMASK" (see AX=002Ah);
	  "FG_KBTEST" did not exist yet
	The low-level keyboard handler must have been enabled with AX=0053h
SeeAlso: AX=0053h,INT 16/AH=01h
--------V-620055-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_LOCATE" - SET TEXT-MODE CURSOR POSITION
	AX = 0055h
	BX = row
	CX = column
Notes:	For FGDRIVER v1.10, this function was unused; "FG_LOCATE" was AX=0033h
	There are only eight text cursors shared by successive groups of
	  eight video pages (pages 0, 8, 16, ... share one cursor, 1, 9, ...
	  share the second, etc)
SeeAlso: AX=0045h,AX=0047h,AX=0068h,AX=00AFh
--------V-620056-----------------------------
INT 62 u - FGDRIVER v3.03 - UNUSED
	AX = 0056h
Return: AX destroyed
--------V-620057-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAKEPCX" - CREATE PCX FILE FROM SCREEN WINDOW
	AX = 0057h
	BX = left edge in screen space units
	CX = right edge in screen space units
	DX = top edge in screen space units
	SI = bottom edge in screen space units
	ES:DI -> ASCIZ filename of PCX file to create
Return: AX = status
	    0000h successful
	    0001h file not created
Notes:	For FGDRIVER v1.10, this function was unused; "FG_MAKEPCX" was AX=0061h
	The PCX file is created from the specified region of the active video
	  page; the left and right edges are adjusted to a byte boundary if
	  necessary
	If the specified file already exists, it is overwritten
	This call is ignored in text and Hercules low-resolution graphics modes
SeeAlso: AX=004Ah,AX=0058h,AX=0059h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-620058-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAKEPPR" - CREATE PACKED PIXEL RUN FILE
	AX = 0058h
	BX = left edge in screen space units
	CX = right edge in screen space units
	DX = top edge in screen space units
	SI = bottom edge in screen space units
	ES:DI -> ASCIZ filename of PPR file to create
Return: AX = status
	    0000h successful
	    0001h file not created
Notes:	For FGDRIVER v1.10, this function was unused; "FG_MAKEPPR" did not
	  exist yet
	The PPR file is created from the specified region of the active video
	  page; the left and right edges are adjusted to byte boundaries if
	  necessary
	If the specified file already exists, it is overwritten
	This call is ignored in text modes
SeeAlso: AX=004Ah,AX=0057h,AX=0059h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-620059-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAKESPR" - CREATE STANDARD PIXEL RUN FILE
	AX = 0059h
	BX = left edge in screen space units
	CX = right edge in screen space units
	DX = top edge in screen space units
	SI = bottom edge in screen space units
	ES:DI -> ASCIZ filename of SPR file to create
Return: AX = status
	    0000h successful
	    0001h file not created
Note:	For FGDRIVER v1.10, this function was unused; "FG_MAKESPR" did not
	  exist yet
	The SPR file is created from the specified region of the active video
	  page; the left and right edges are adjusted to byte boundaries if
	  necessary
	If the specified file already exists, it is overwritten
	This call is ignored in text modes
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62005A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAPRGB" - MAP COLOR COMPONENTS INTO PALETTE VAL
	AX = 005Ah
	BX = red component
	CX = green component
	DX = blue component
Return: AX = mode-specific palette value corresponding to specified components
Notes:	For FGDRIVER v1.10, this function was "FG_SAVE" (see AX=0087h);
	  "FG_MAPRGB" was AX=001Dh
	This function is only meaningful in 16-color graphics modes
SeeAlso: AX=0042h,AX=0096h
--------V-62005B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MEASURE" - GET DELAY UNITS PER CLOCK TICK
	AX = 005Bh
Return: AX = delay units per clock tick (processor-dependent)
Notes:	For FGDRIVER v1.10, this function was "FG_RESTORE" (see AX=0083h);
	  "FG_MEASURE" was AX=0098h
	These delay units are used by "FG_STALL" (see AX=009Fh)
SeeAlso: AX=009Fh
--------V-62005C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MEMAVAIL" - QUERY AMOUNT OF FREE MEMORY
	AX = 005Ch
Return: DX:AX = number of bytes of conventional memory available
Note:	For FGDRIVER v1.10, this function was "FG_TRANSFER" (see AX=00A9h);
	  "FG_MEMAVAIL" was AX=009Bh
SeeAlso: AX=004Ch,AX=005Dh
--------V-62005D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MEMORY" - GET SIZE OF VIDEO MEMORY
	AX = 005Dh
Return: AX = size of video memory in KB
Notes:	For FGDRIVER v1.10, this function was "FG_TCXFER" (see AX=00A6h);
	  "FG_MEMORY" did not exist yet
	You must first call "FG_SVGAINIT" (see AX=00A1h) before using this
	  function
SeeAlso: AX=005Ch
--------V-62005E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEBUT" - GET MOUSE BUTTON PRESS/RELEASE CNTS
	AX = 005Eh
	CX = mouse button (1 = left press, 2 = right press, 3 = middle press,
		  -1=left release, -2=right release, -3=middle release)
	ES:BX -> variable pointer record (see #2105)
Return: variables updated
Notes:	For FGDRIVER v1.10, this function was "FG_TCMASK" (see AX=00A5h);
	  "FG_MOUSEBUT" was AX=007Ch
	This function returns the count of presses or releases since the last
	  call to this function; if the count is zero, row and column will
	  also be zero
SeeAlso: AX=005Fh,AX=0061h,AX=0064h

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2105)
 00h	WORD	segment of WORD buffer for press/release count
 02h	WORD	offset of WORD buffer for press/release count
 04h	WORD	segment of WORD buffer for screen space col of last press/rls
 06h	WORD	offset of WORD buffer for screen space col of last press/rels
 08h	WORD	segment of WORD buffer for screen space row of last press/rls
 0Ah	WORD	offset of WORD buffer for screen space row of last press/rls
--------V-62005F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSECUR" - SPECIFY TEXT-MODE MOUSE CURSOR
	AX = 005Fh
	BX = screen mask
	CX = cursor mask
Notes:	For FGDRIVER v1.10, this function was "FG_COPYPAGE" (see AX=0012h);
	  "FG_MOUSECUR" was AX=007Eh
	This call is ignored in graphics modes
SeeAlso: AX=0065h,AX=0067h
--------V-620060-----------------------------
INT 62 u - FGDRIVER v1.10 only - "FG_DISPPCX" - DISPLAY PCX FILE
	AX = 0060h
	ES:BX -> ASCIZ filename
	CX = flags
	    bit 0: use current palette rather than PCX file's palette
	    bits 1-15 reserved (0)
Return: AX = status
	    0000h success
	    0001h file not found
	    0002h file is not a valid PCX file
Notes:	This call is ignored in text modes and Hercules low-resolution graphics
	The image is displayed with its upper left corner at the current
	  graphics cursor position
SeeAlso: AX=009Ah
--------V-620060-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEFIN" - UNHOOK FASTGRAPH MOUSE HANDLER
	AX = 0060h
Notes:	For FGDRIVER v1.10, this function was "FG_DISPPCX", which no longer
	  exists; "FG_MOUSEFIN" did not exist yet
	This function should be called before switching back to text mode if
	  "FG_MOUSEINI" was called while in an SVGA graphics mode
SeeAlso: AX=0061h
--------V-620061-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEINI" - INITIALIZE MOUSE SUPPORT
	AX = 0061h
Return: AX = status
	    0002h two-button mouse
	    0003h three-button mouse
	    FFFFh initialization failed
Notes:	For FGDRIVER v1.10, this function was "FG_MAKEPCX" (see AX=0057h);
	  "FG_MOUSEINI" was AX=007Ah
	After this call, the mouse cursor is invisible
SeeAlso: AX=0060h"3.03",AX=0062h,AX=0066h
--------V-620062-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSELIM" - SPECIFY MOUSE CURSOR LIMITS
	AX = 0062h
	BX = left-most position allowed for mouse cursor
	CX = right-most position allowed
	DX = top-most position allowed
	SI = bottom-most position allowed
Note:	For FGDRIVER v1.10, this function was "FG_IMAGESIZ" (see AX=004Bh);
	  "FG_MOUSELIM" was AX=0080h
SeeAlso: AX=0061h,AX=0063h,INT 33/AX=0007h,INT 33/AX=0008h
--------V-620063-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEMOV" - SET MOUSE CURSOR POSITION
	AX = 0063h
	BX = new column
	CX = new row
Notes:	For FGDRIVER v1.10, this function was unused;"FG_MOUSEMOV" was AX=0081h
	This function will not move the mouse cursor outside the bounding box
	  specified with AX=0080h
SeeAlso: AX=0062h,AX=0064h,INT 33/AX=0004h
--------V-620064-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEPOS" - GET CURRENT MOUSE POSITION
	AX = 0064h
	ES:BX -> variable pointer record (see #2106)
Notes:	For FGDRIVER v1.10, this function was "FG_FADEIN" (see AX=0027h);
	  "FG_MOUSEPOS" was AX=007Dh
SeeAlso: AX=0063h

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2106)
 00h	WORD	segment of WORD buffer for mouse column
 02h	WORD	offset of WORD buffer for mouse column
 04h	WORD	segment of WORD buffer for mouse row
 06h	WORD	offset of WORD buffer for mouse row
 08h	WORD	segment of WORD buffer for button status
 0Ah	WORD	offset of WORD buffer for button status
Note:	button status: bit 0 = left button, bit 1 = right, bit 2 = middle
--------V-620065-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEPTR" - SPECIFY GRAPH-MODE MOUSE CURSOR
	AX = 0065h
	ES:BX -> masks (16-byte screen mask followed by 16-byte cursor mask)
	CX = X offset of hot spot from upper left corner
	DX = Y offset of hot spot from upper left corner
Notes:	For FGDRIVER v1.10, this function was "FG_FADEOUT" (see AX=0028h);
	  "FG_MOUSEPTR" was AX=007Fh
	This call is ignored in text modes
SeeAlso: AX=005Fh,INT 33/AX=0009h
--------V-620066-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSESPD" - SET MOUSE CURSOR SPEED
	AX = 0066h
	BX = horizontal mickeys per eight pixels of movement (default 16)
	CX = vertical mickeys per eight pixels of movement (default 16)
Note:	For FGDRIVER v1.10, this function was "FG_PAN" (see AX=0071h);
	  "FG_MOUSESPD" was AX=0082h
SeeAlso: INT 33/AX=000Fh,INT 33/AX=001Ah
--------V-620067-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEVIS" - SET MOUSE CURSOR VISIBILITY
	AX = 0067h
	BX = new state (0000h invisible, 0001h visible)
Note:	For FGDRIVER v1.10, this function was "FG_SCROLL" (see AX=0089h);
	  "FG_MOUSEVIS" was AX=007Bh
SeeAlso: AX=0061h,INT 33/AX=0001h,INT 33/AX=0002h
--------V-620068-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOVE" - SET GRAPHICS CURSOR POSITION
	AX = 0068h
	BX = new column
	CX = new row
Notes:	For FGDRIVER v1.10, this function was unused; "FG_MOVE" was AX=0023h
	This call is ignored in text modes
SeeAlso: AX=0045h,AX=0047h,AX=0055h,AX=0063h,AX=0069h,AX=00AFh
--------V-620069-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOVEREL" - ADJUST GRAPHICS CURSOR POSITION
	AX = 0069h
	BX = column offset
	CX = row offset
Notes:	For FGDRIVER v1.10, this function was unused; "FG_MOVEREL" was AX=0024h
	This call is ignored in text modes
SeeAlso: AX=0045h,AX=0047h,AX=0068h
--------V-62006A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MUSIC" - PLAY SERIES OF NOTES
	AX = 006Ah
	ES:BX -> '$'-terminated music string in BASIC PLAY format
Return: after music completed
Notes:	For FGDRIVER v1.10, this function was unused; "FG_MUSIC" was AX=008Ch
	This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
	  AX=008Dh) is already in progress
SeeAlso: AX=006Bh,AX=009Dh,AX=00AAh
--------V-62006B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MUSICB" - PLAY SERIES OF NOTES IN BACKGROUND
	AX = 006Bh
	CX = number of repetitions (negative = continuous play)
	ES:BX -> '$'-terminated music string in BASIC PLAY format
Notes:	For FGDRIVER v1.10, this function was unused; "FG_MUSICB" was AX=008Dh
	This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
	  AX=008Dh) is already in progress
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-62006C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_NUMLOCK" - GET STATE OF NUMLOCK KEY
	AX = 006Ch
Return: AX = NumLock state (0000h off, 0001h on)
Note:	For FGDRIVER v1.10, this function was unused; "FG_NUMLOCK" was AX=0072h
SeeAlso: AX=000Ah,AX=0088h,AX=008Bh,AX=0094h
--------V-62006D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PAGESIZE" - GET VIDEO PAGE SIZE FOR CURR MODE
	AX = 006Dh
Return: DX:AX = page size in bytes
Note:	For FGDRIVER v1.10, this function was "FG_WAITKEY" (see AX=00ADh);
	  "FG_PAGESIZE" did not exist yet
SeeAlso: AX=005Dh
--------V-62006E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PAINT" - FLOOD CLOSED REGION WITH COLOR
	AX = 006Eh
	BX = column
	CX = row
Notes:	For FGDRIVER v1.10, this function was "FG_GETKEY" (see AX=003Ah);
	  "FG_PAINT" was AX=002Fh
	This function fills an arbitrary closed region around the specified
	  point with the current color; the screen edges are not considered
	  region boundaries
	This call is ignored in text modes
SeeAlso: AX=002Bh
--------V-62006F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PALETTE" - SET PALETTE / SET VIDEO DAC REGISTER
	AX = 006Fh
---CGA 4-color graphics---
	BX = CGA paletee number
	CX = background color
---CGA 2-color graphics---
	BX ignored
	CX = foreground color
---16-color graphics---
	BX = palette register number
	CX = palette value
---256-color graphics---
	BX = DAC register number
	CX =  DAC value
Notes:	For FGDRIVER v1.10, this function was "FG_INTKEY" (see AX=0051h);
	  "FG_PALETTE" was AX=0017h
	This function is ignored in text modes and Hercules graphics modes
	Few EGA/VGA adapters correctly set the foreground color in CGA mode 6
SeeAlso: AX=0035h,AX=0042h,AX=0070h,AX=008Eh
--------V-620070-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PALETTES" - SET ALL PALETTE REGISTERS
	AX = 0070h
	ES:BX -> array of 16 WORDs containing values for palette registers
		  (or first 16 DAC registers in 256-color modes)
Notes:	For FGDRIVER v1.10, this function was "FG_CAPSLOCK" (see AX=000Ah);
	  "FG_PALETTES" was AX=0018h
	This function is ignored in text modes, CGA and Hercules graphics modes
SeeAlso: AX=0035h,AX=0042h,AX=006Fh,AX=008Eh
--------V-620071-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PAN" - SET SCREEN ORIGIN
	AX = 0071h
	BX = new column for screen origin
	CX = new row for screen origin
Note:	For FGDRIVER v1.10, this function was "FG_SETCAPS" (see AX=008Bh);
	  "FG_PAN" was AX=0066h
SeeAlso: AX=0095h
--------V-620072-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PATTERN" - SPECIFY DISPLAY PATTERN FOR COLOR
	AX = 0072h
	BX = index of pattern to define
	CX = number of predefined display pattern
Notes:	For FGDRIVER v1.10, this function was "FG_NUMLOCK" (see AX=006Ch);
	  "FG_PATTERN" was AX=0050h
	When displaying a pixel run map, Fastgraph uses the pattern associated
	  with each color index rather than displaying the actual color
	This call has no effect in text and 256-color graphics modes
SeeAlso: AX=0021h,AX=0039h
--------V-620073-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PCXHEAD" - GET PCX FILE HEADER
	AX = 0073h
	ES:BX -> variable pointer record (see #2107)
Return: AX = status
		 0000h successful
	    FFFEh not a PCX file
	    FFFFh file does not exist
Note:	For FGDRIVER v1.10, this function was "FG_SETNUM" (see AX=0094h);
	  "FG_PCXHEAD" did not exist yet
SeeAlso: AX=0074h,AX=009Ah

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2107)
 00h	WORD	segment of ASCIZ filename
 02h	WORD	offset of ASCIZ filename
 04h	WORD	segment of 128-byte buffer for PCX header
 06h	WORD	offset of 128-byte buffer for PCX header
--------V-620074-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PCXMODE" - GET OPTIMAL VIDEO MODE FOR DISPLAY
	AX = 0074h
	ES:BX -> PCX header (see AX=0073h)
Return: AX = optimal video mode for PCX file
	    FFFEh not a valid PCX header
	    FFFFh unable to determine compatible video mode
Note:	For FGDRIVER v1.10, this function was "FG_SCRLOCK" (see AX=0088h);
	  "FG_PCXMODE" did not exist yet
SeeAlso: AX=0073h,AX=009Ah
--------V-620075-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PLAYING" - DETERMINE WHETHER ASYNC SOUND ACTIVE
	AX = 0075h
Return: AX = sound state (0 = no asynchronous sound, 1 = async sound playing)
Note:	For FGDRIVER v1.10, this function was "FG_INITJOY" (see AX=004Dh);
	  "FG_PLAYING" was AX=0091h
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-620076-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POINT" - DISPLAY A PIXEL
	AX = 0076h
	BX = column
	CX = row
Notes:	For FGDRIVER v1.10, this function was "FG_GETXJOY" (see AX=0044h);
	  "FG_POINT" was AX=001Fh
	This call is ignored in text modes
SeeAlso: AX=0006h,AX=001Bh,AX=0041h,AX=0077h
--------V-620077-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POINTX" - DISPLAY A PIXEL IN XOR MODE
	AX = 0077h
	BX = column
	CX = row
Notes:	For FGDRIVER v1.10, this function was "FG_GETYJOY" (see AX=0046h);
	  "FG_POINTX" did not exist yet
	This call is ignored in text modes
SeeAlso: AX=0041h,AX=0076h
--------V-620078-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYFILL" - DRAW A FILLED CONVEX POLYGON
	AX = 0078h
	CX = number of vertices
	ES:BX -> variable pointer record (see #2108)
Notes:	For FGDRIVER v1.10, this function was "FG_BUTTON" (see AX=0009h);
	  "FG_POLYFILL" did not exist yet
	The vertex array consists of pairs of words specifying the X and Y
	  coordinates of each vertex; the work array is used internally and
	  must contain at least four times as many bytes as the polygon is
	  high in pixels
	This function is ignored in text modes
	If the polygon is non-convex, only a portion of it may be filled
SeeAlso: AX=000Eh,AX=0025h,AX=0079h,AX=007Ah,AX=007Bh

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2108)
 00h	WORD	segment of vertex array
 02h	WORD	offset of vertex array
 04h	WORD	segment of work array
 06h	WORD	offset of work array
--------V-620079-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYGON" - DRAW AN UNFILLED POLYGON
	AX = 0079h
	CX = number of vertices in polygon
	ES:BX -> variable pointer record (see #2109)
Notes:	For FGDRIVER v1.10, this function was "FG_INTJOY" (see AX=0050h);
	  "FG_POLYGON" was AX=002Eh
	This call is ignored in text modes
SeeAlso: AX=0078h,AX=007Ah,AX=007Bh

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2109)
 00h	WORD	segment of WORD array containing vertex columns
 02h	WORD	offset of WORD array containing vertex columns
 04h	WORD	segment of WORD array containing vertex rows
 06h	WORD	offset of WORD array containing vertex rows
--------V-62007A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYLINE" - DRAW AN UNFILLED POLYGON
	AX = 007Ah
	CX = number of vertices in polygon
	ES:BX -> vertex array (see #2110)
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSEINI" (see AX=0061h);
	  "FG_POLYLINE" did not exist yet
	This function is equivalent to "FG_POLYGON", but uses only a single
	  array to define the vertices
	This call is ignored in text modes
SeeAlso: AX=0076h,AX=0078h,AX=0079h,AX=007Bh

Format of FGDRIVER vertex array element:
Offset	Size	Description	(Table 2110)
 00h	WORD	column
 02h	WORD	row
--------V-62007B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYOFF" - DEFINE POLYGON DRAWING OFFSET
	AX = 007Bh
	BX = horizontal offset (default 0)
	CX = vertical offset (default 0)
Desc:	define the offsets applied to all vertices of polygons drawn with
	  "FG_POLYFILL" or "FG_POLYLINE"
Note:	For FGDRIVER v1.10, this function was "FG_MOUSEVIS" (see AX=0067h);
	  "FG_POLYOFF" did not exist yet
SeeAlso: AX=0078h,AX=007Ah
--------V-62007C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PRINT" - DISPLAY STRING OF HARDWARE CHARACTERS
	AX = 007Ch
	CX = length of string
	ES:BX -> string to display
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSEBUT" (see AX=005Eh);
	  "FG_PRINT" did not exist yet
	The string is displayed in the current color, and the graphics cursor
	  is updated to be just to the right of the last displayed character
	This function is ignored in text modes
SeeAlso: AX=000Ch,AX=002Dh,AX=0052h
--------V-62007D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PUTBLOCK" - RESTORE RECTANGLE OF DISPLAY
	AX = 007Dh
	ES:BX -> buffer containing previously-saved image
	CX = left edge
	DX = right edge
	SI = top edge
	DI = bottom edge
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSEPOS" (see AX=0064h);
	  "FG_PUTBLOCK" did not exist yet
	In text modes, coordinates are character positions; in graphics modes,
	  they are defined in screen space, and the left and right edges are
	  adjusted to a byte boundary if necessary
SeeAlso: AX=0031h,AX=007Eh
--------V-62007E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PUTIMAGE" - DISPLAY MODE-SPECIFIC BITMAP IMAGE
	AX = 007Eh
	ES:BX -> buffer containing mode-specific bitmap
	CX = width in bytes
	DX = height in pixel rows
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSECUR" (see AX=005Fh);
	  "FG_PUTIMAGE" did not exist yet
	The bitmap is displayed with its lower left corner at the graphics
	  cursor position; color 0 is NOT treated as transparent
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=0038h,AX=007Dh
--------V-62007F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_QUIET" - STOP CONTINUOUS SYNCHRONOUS SOUND
	AX = 007Fh
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSEPTR" (see AX=0065h);
	  "FG_QUIET" was AX=0090h
	This call has no effect if there is no continuous sound playing
SeeAlso: AX=0048h,AX=006Ah,AX=009Eh,AX=00ABh
--------V-620080-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RECT" - DRAW UNFILLED RECTANGLE IN SCREEN SPACE
	AX = 0080h
	BX = left edge column
	CX = right edge column
	DX = top edge row
	SI = bottom edge row
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSELIM" (see AX=0062h);
	  "FG_RECT" was AX=002Ah
SeeAlso: AX=0006h,AX=0011h,AX=0021h,AX=0031h
--------V-620081-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESET" - ERASE SCREEN AND RESTORE SCREEN ATTR
	AX = 0081h
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSEMOV" (see AX=0063h);
	  "FG_RESET" was AX=0006h
	This call is ignored in graphics modes
	The screen attributes are only restored if ANSI.SYS is loaded
SeeAlso: AX=0026h,AX=0093h
--------V-620082-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESIZE" - SET GRAPHICS MODE VIDEO PAGE SIZE
	AX = 0082h
	BX = new page width in pixels
	CX = new page height in pixels
Notes:	For FGDRIVER v1.10, this function was "FG_MOUSESPD" (see AX=0066h);
	  "FG_RESIZE" was AX=0045h
	The visible page must be set to 0000h before making this call
	The mouse, joysticks, expanded memory, and extended memory must be
	  reinitialized after this call
SeeAlso: AX=006Dh,AX=008Fh
--------V-620083-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESTORE" - COPY REGION FROM HIDDEN TO VIS PAGE
	AX = 0083h
	BX = left edge column
	CX = right edge column
	DX = top edge row
	SI = bottom edge row
Notes:	For FGDRIVER v1.10, this function was unused; "FG_RESTORE" was AX=005Bh
	The left and right edges are adjusted to byte boundaries if necessary
SeeAlso: AX=0087h,AX=00A6h
--------V-620084-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESUME" - RESTART ASYNCHRONOUS SOUND
	AX = 0084h
Notes:	For FGDRIVER v1.10, this function was unused; "FG_RESUME" was AX=0092h
SeeAlso: AX=009Eh,AX=00A0h
--------V-620085-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_REVIMAGE" - DISPLAY REVERSED IMAGE (BITMAP)
	AX = 0085h
	ES:BX -> mode-specific bitmap
	CX = width of bitmap in bytes
	DX = height of bitmap in pixel rows
Notes:	For FGDRIVER v1.10, this function was unused;"FG_REVIMAGE" was AX=004Bh
	This call is ignored in text modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=0038h,AX=0086h,AX=008Ch,AX=009Ah
--------V-620086-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_REVMASK" - DISPLAY REVERSED IMAGE (MASKING MAP)
	AX = 0086h
	ES:BX -> array containing image stored as a masking map (see #2098)
	CX = number of pixel runs in masking map
	DX = width of masking map in pixels
Notes:	For FGDRIVER v1.10, this function was unused; "FG_REVMASK" was AX=0053h
	This call is ignored in text modes and in native EGA and VGA graphics
	  modes
	The image is drawn with its lower left corner at the current graphics
	  cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ah,AX=0085h,AX=008Ch,AX=00A5h
--------V-620087-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SAVE" - COPY REGION FROM VISIBLE TO HIDDEN PAGE
	AX = 0087h
	BX = left edge column
	CX = right edge column
	DX = top edge row
	SI = bottom edge row
Notes:	For FGDRIVER v1.10, this function was unused; "FG_SAVE" was AX=005Ah
	The left and right edges are adjusted to byte boundaries if necessary
SeeAlso: AX=0083h,AX=00A6h
--------V-620088-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SCRLOCK" - GET STATE OF SCROLL LOCK KEY
	AX = 0088h
Return: AX = ScrollLock state (0000h off, 0001h on)
Program: FGDRIVER is the external video driver for the shareware
	  Fastgraph/Light by Ted Gruber Software
Note:	For FGDRIVER v1.10, this function was "FG_SOUND" (see AX=009Dh);
	  "FG_SCRLOCK" was AX=0074h
SeeAlso: AX=000Ah,AX=006Ch,AX=008Bh,AX=0094h
--------V-620089-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SCROLL" - VERTICALLY SCROLL SCREEN REGION
	AX = 0089h
	BX = left edge column
	CX = right edge column
	DX = top edge row
	SI = bottom edge row
	DI = number of pixels by which to scroll (positive scrolls up,
	      negative scrolls down)
	ES = type of scroll
	    0000h circular (rows scrolled off are copied to vacated rows)
	    else vacated rows are filled with the current color
Notes:	For FGDRIVER v1.10, this function was "FG_SOUNDS" (see AX=009Eh);
	  "FG_SCROLL" was AX=0067h
	In graphics modes, the left and right edges are adjusted to byte
	  boundaries if necessary
	Circular scrolling uses part of the hidden page as a workspace
SeeAlso: AX=0071h,AX=0095h
--------V-62008A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETATTR" - SET TEXT-MODE CHARACTER ATTRIBUTE
	AX = 008Ah
	BX = foreground
	CX = background
	DX = blink (0000h nonblinking, 0001h blink)
Notes:	For FGDRIVER v1.10, this function was "FG_VOICE" (see AX=00AAh);
	  "FG_SETATTR" was AX=0019h
	This call is ignored in graphics modes
SeeAlso: AX=000Bh,,AX=0030h,AX=0034h
--------V-62008B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETCAPS" - SET STATE OF CAPSLOCK KEY
	AX = 008Bh
	BX = new state (0000h off, 0001h on)
Note:	For FGDRIVER v1.10, this function was "FG_VOICES" (see AX=00ABh);
	  "FG_SETCAPS" was AX=0071h
SeeAlso: AX=000Ah,AX=006Ch,AX=0088h,AX=0094h
--------V-62008C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETCLIP" - SET CLIPPING REGION
	AX = 008Ch
	BX = left edge of clipping region
	CX = right edge of clipping region
	DX = top edge of clipping region
	SI = bottom edge of clipping region
Note:	For FGDRIVER v1.10, this function was "FG_MUSIC" (see AX=006Ah);
	  "FG_SETCLIP" was AX=0029h
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ah,AX=0086h,AX=00A5h
--------V-62008D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETCOLOR" - SET CURRENT COLOR
	AX = 008Dh
	BX = new color index (or text attribute in text modes)
Note:	For FGDRIVER v1.10, this function was "FG_MUSICB" (see AX=006Bh);
	  "FG_SETCOLOR" was AX=001Ah
SeeAlso: AX=0016h,AX=0034h,AX=0039h
--------V-62008E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETDACS" - SET VIDEO DAC CONTENTS
	AX = 008Eh
	CX = number of DAC registers to set (0001h to 0100h)
	DX = starting DAC register number (0000h to 00FFh)
	ES:BX -> buffer containing DAC red/green/blue triples
Notes:	For FGDRIVER v1.10, this function was "FG_HUSH" (see AX=0048h);
	  "FG_SETDACS" was AX=00A5h
	The register number wraps back to zero after reaching FFh
	This call has no effect in text modes or graphics modes below 11h
SeeAlso: AX=0035h,AX=0042h,AX=006Fh,INT 10/AX=1012h
--------V-62008F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETENTRY" - SET TYPE AND ADDRESS OF VIDEO PAGE
	AX = 008Fh
	BX = page number (00h-3Fh)
	CX = page address
	DX = page type (see #2100 at AX=0036h)
Notes:	For FGDRIVER v1.10, this function was "FG_HUSHNEXT" (see AX=0049h);
	  "FG_SETENTRY" did not exist yet
SeeAlso: AX=002Eh,AX=0036h,AX=0093h
--------V-620090-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETFUNC" - SET LOGICAL OPERATION FOR VIDEO OPS
	AX = 0090h
	BX = operation
	    0000h replacement
	    0001h AND
	    0002h OR
	    0003h XOR
Notes:	For FGDRIVER v1.10, this function was "FG_QUIET" (see AX=007Fh);
	  "FG_SETFUNC" was AX=009Ch
	This function is only available in native EGA/VGA graphics modes
	  (0Dh to 12h)
SeeAlso: AX=001Ch,AX=0076h
--------V-620091-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETHPAGE" - SET HIDDEN VIDEO PAGE
	AX = 0091h
	BX = new hidden page (0000h to 003Fh)
Notes:	For FGDRIVER v1.10, this function was "FG_PLAYING" (see AX=0075h);
	  "FG_SETHPAGE" was AX=0041h
	The specified page must be a physical page or a virtual page
SeeAlso: AX=0037h,AX=0095h,AX=0098h
--------V-620092-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETLINES" - SET TEXT ROWS ON SCREEN
	AX = 0092h
	BX = new screen size (25, 43, 50)
Note:	For FGDRIVER v1.10, this function was "FG_RESUME" (see AX=0084h);
	  "FG_SETLINES" was AX=0011h
SeeAlso: AX=003Bh
--------V-620093-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETMODE" - SELECT VIDEO MODE AND INITIALIZE
	AX = 0093h
	BX = new video mode or FFFFh for current mode (see #2111)
	ES:DX -> WORD ???
Notes:	For FGDRIVER v1.10, this function was "FG_SUSPEND" (see AX=00A0h);
	  "FG_SETMODE" was AX=0001h
	This call resets the active video page to page 0000h, the clipping
	  region to the entire screen, text rows to 25, etc.
SeeAlso: AX=003Fh,INT 10/AH=00h

(Table 2111)
Values for FGDRIVER video mode:
 00h-07h standard BIOS modes
 09h	PCjr/Tandy1000 320x200x16
 0Bh	Hercules graphics 720x348
 0Ch	Hercules graphics 320x200
 0Dh-13h standard BIOS modes
 14h	VGA graphics 320x200x256
 15h	VGA graphics 320x400x256
 16h	VGA graphics 320x240x256
 17h	VGA graphics 320x480x256
 18h	SVGA graphics 640x400x256
 19h	SVGA graphics 640x480x256
 1Ah	SVGA graphics 800x600x256
 1Bh	SVGA graphics 1024x768x256
 1Ch	SVGA graphics 800x600x16
 1Dh	SVGA graphics 1024x768x16
--------V-620094-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETNUM" - SET STATE OF NUMLOCK KEY
	AX = 0094h
	BX = new state (0000h off, 0001h on)
Note:	For FGDRIVER v1.10, this function was unused; "FG_SETNUM" was AX=0073h
SeeAlso: AX=000Ah,AX=006Ch,AX=0088h,AX=008Bh
--------V-620095-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETPAGE" - SET ACTIVE VIDEO PAGE
	AX = 0095h
	BX = new video page (0000h to 003Fh)
Notes:	For FGDRIVER v1.10, this function was unused; "FG_SETPAGE" was AX=003Dh
	The specified page must be a physical or virtual page
SeeAlso: AX=002Fh,AX=0036h,AX=0037h,AX=0043h,AX=0071h
--------V-620096-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETRGB" - SET VIDEO DAC REGISTER CONTENTS
	AX = 0096h
	BX = palette or DAC register number
	CX = red color component
	DX = green component
	SI = blue component
Notes:	For FGDRIVER v1.10, this function was "FG_WAITFOR" (see AX=00ACh);
	  "FG_SETRGB" was AX=001Bh
	The register number may be negative for Tandy, PCjr, and 200-line
	  EGA graphics modes to specify an intense color
	This call has no effect in text, CGA graphics, and Hercules graphics
	  modes
SeeAlso: AX=0042h
--------V-620097-----------------------------
INT 62 u - FGDRIVER v3.03 - UNUSED
	AX = 0097h
Return: AX = 0000h
Note:	For FGDRIVER v1.10, this function was "FG_STALL" (see AX=009Fh)
--------V-620098-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETVPAGE" - SET VISIBLE VIDEO PAGE
	AX = 0098h
	BX = new video page (0000h to 003Fh)
Notes:	For FGDRIVER v1.10, this function was "FG_MEASURE" (see AX=005Bh);
	  "FG_SETVPAGE" was AX=003Fh
	The specified page must be a physical or virtual page
SeeAlso: AX=0037h,AX=0091h,AX=0095h
--------V-620099-----------------------------
INT 62 u - FGDRIVER v3.03 - UNUSED
	AX = 0099h
Return: AX destroyed
Note:	For FGDRIVER v1.10, this function was "FG_GETCLOCK" (see AX=0033h)
--------V-62009A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SHOWPCX" - DISPLAY IMAGE FROM PCX FILE
	AX = 009Ah
	ES:BX -> ASCIZ filename of PCX image
	CX = flags (see #2112)
Return: AX = status
	    0000h success
	    0001h file not found
	    0002h not a PCX file
Notes:	For FGDRIVER v1.10, this function was unused; "FG_SHOWPCX" did not
	  exist yet
	This function is ignored in text modes and Hercules low-res graphics
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=0059h,AX=0060h"1.10",AX=009Bh,AX=009Ch

Bitfields for FGDRIVER flags:
Bit(s)	Description	(Table 2112)
 0	use current palette rather than PCX file's palette
 1	display image at cursor position instead of position in PCX header
 2-15	reserved
--------V-62009B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SHOWPPR" - DISPLAY IMAGE FROM PPR FILE
	AX = 009Bh
	ES:BX -> ASCIZ filename of packed pixel run image
	CX = width in pixels (nonzero)
Return: AX = status
	    0000h successful
	    0001h file not found
Notes:	For FGDRIVER v1.10, this function was "FG_MEMAVAIL" (see AX=005Ch);
	  "FG_SHOWPPR" did not exist yet
	The image is displayed with its lower left corner at the current
	  graphics cursor position
	This function is ignored in text modes and 256-color graphics modes
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=0059h,AX=009Ah,AX=009Ch
--------V-62009C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SHOWSPR" - DISPLAY IMAGE FROM SPR FILE
	AX = 009Ch
	ES:BX -> ASCIZ filename of standard pixel run image
	CX = width in pixels (nonzero)
Return: AX = status
	    0000h successful
	    0001h file not found
Notes:	For FGDRIVER v1.10, this function was "FG_SETFUNC" (see AX=0090h);
	  "FG_SHOWSPR" did not exist yet
	The image is displayed with its lower left corner at the current
	  graphics cursor position
	This function is ignored in text modes
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=0059h,AX=009Ah,AX=009Bh
--------V-62009D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SOUND" - MAKE SOUND FOR SPECIFIED DURATION
	AX = 009Dh
	BX = frequency in Hertz (18-32767)
	CX = duration in clock ticks (0000h or negative for continuous sound)
Notes:	For FGDRIVER v1.10, this function was "FG_ALLOCCMS" (see AX=0001h);
	  "FG_SOUND" was AX=0088h
	This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
	  AX=008Dh) is already in progress
SeeAlso: AX=0048h,AX=006Ah,AX=009Eh,AX=00A0h,AX=00AAh
--------V-62009E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SOUNDS" - PLAY SOUNDS IN BACKGROUND
	AX = 009Eh
	CX = number of times to cycle through sound list
	ES:BX -> sounds array (see #2113)
Notes:	For FGDRIVER v1.10, this function was "FG_ALLOCEMS" (see AX=0002h);
	  "FG_SOUNDS" was AX=0089h
	This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
	  AX=008Dh) is already in progress
SeeAlso: AX=0048h,AX=006Bh,AX=009Dh,AX=00A0h,AX=00ABh

Format of FGDRIVER sounds array element:
Offset	Size	Description	(Table 2113)
 00h	WORD	frequency of sound in Hertz (0000h ends array)
 02h	WORD	duration of sound in clock ticks
--------V-62009F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_STALL" - PAUSE FOR SPECIFIED DURATION
	AX = 009Fh
	BX = duration in processor-dependent delay units (see AX=005Bh)
Return: after delay elapses
Note:	For FGDRIVER v1.10, this function was "FG_ALLOCXMS" (see AX=0003h);
	  "FG_STALL" was AX=0097h
SeeAlso: AX=005Bh,INT 2F/AX=1224h
--------V-6200A0-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SUSPEND" - TEMPORARILY STOP ASYNCHRONOUS SOUND
	AX = 00A0h
Notes:	For FGDRIVER v1.10, this function was "FG_INITEMS" (see AX=004Ch);
	  "FG_SUSPEND" was AX=0093h
	This call has no effect if there is no asynchronous sound in progress
	The program must not exit while sound is suspended
SeeAlso: AX=0048h,AX=006Ah,AX=009Eh,AX=00A0h,AX=00AAh
--------V-6200A1-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SVGAINIT" - INITIALIZE FASTGRAPH SVGA KERNEL
	AX = 00A1h
	BX = method (see #2114)
Return: AX = status
		 0000h no VESA BIOS or supported SVGA chipset
	    0001h using VESA BIOS
	    0002h-0016h specific chipset being used (same as "method" below)
Notes:	For FGDRIVER v1.10, this function was "FG_INITXMS" (see AX=004Eh);
	  "FG_SVGAINIT" did not exist yet
	This function must be called before attempting to set SVGA graphics
	  modes (18h to 1Dh) or using "FG_BESTMODE", "FG_TESTMODE", or
	  "FG_MEMORY"
SeeAlso: AX=0023h,AX=00A2h,AX=00A3h

(Table 2114)
Values for FGDRIVER SVGA method:
 0000h	autodetect, give chipset-specific code priority over VESA
 0001h	autodetect, give VESA priority over chipset-specific code
 0002h	Ahead type "A"
 0003h	Ahead type "B"
 0004h	ATI 18800
 0005h	ATI 18800-1
 0006h	ATI 28800
 0007h	Chips & Technologies 82c451/455/456
 0008h	C&T 82c452
 0009h	C&T 82c453
 000Ah	Genoa 6000 series
 000Bh	Oak OTI-067
 000Ch	Paradise PVGA1a
 000Dh	Paradise WD90C00/WD90C10
 000Eh	Paradise WD90C11/WD90C30/WD90C31
 000Fh	Trident 8800
 0010h	Trident 8900
 0011h	Tseng ET3000
 0012h	Tseng ET4000
 0013h	Video7
 0014h	Cirrus Logic 5400 series
 0015h	S3
 0016h	Trident 8900B/8900C/9000
--------V-6200A2-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SVGASTAT" - GET SVGA CHIPSET INFORMATION
	AX = 00A2h
Return: AX = chipset information (see #2115)
Note:	For FGDRIVER v1.10, this function was "FG_BOX" (see AX=0006h);
	  "FG_SVGASTAT" did not exist yet
SeeAlso: AX=0023h,AX=00A1h,AX=00A3h

Bitfields for FGDRIVER chipset information:
Bit(s)	Description	(Table 2115)
 0	SVGA kernel initialized
 1	VESA support enabled
 2	extended video pages available in modes 13-23
 3	SVGA chipset has separate read and write banks
 4-15	reserved (0)
--------V-6200A3-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SVGAVER" - GET FASTGRAPH SVGA KERNEL VERSION
	AX = 00A3h
	ES:BX -> variable pointer record (see #2116)
Note:	For FGDRIVER v1.10, this function was "FG_BOXDEPTH" (see AX=0007h);
	  "FG_SVGAVER" did not exist yet
SeeAlso: AX=00A1h,AX=00A2h

Format of FGDRIVER variable pointer record:
Offset	Size	Description	(Table 2116)
 00h	WORD	segment of WORD buffer for major version
 02h	WORD	offset of WORD buffer for major version
 04h	WORD	segment of WORD buffer for minor version (hundredths)
 06h	WORD	offset of WORD buffer for minor version
--------V-6200A4-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TCDEFINE" - DEFINE TRANSPARENCY OF COLOR INDEX
	AX = 00A4h
	BX = color index
	CX = transparency (00h opaque, other transparent)
Notes:	For FGDRIVER v1.10, this function was "FG_GETDACS" (see AX=0035h);
	  "FG_TCDEFINE" did not exist yet
	This function is ignored in text modes
SeeAlso: AX=00A5h,AX=00A6h
--------V-6200A5-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TCMASK" - SET TRANSPARENT COLORS
	AX = 00A5h
	BX = colors to consider transparent (bit 0 = color 0, etc)
Notes:	For FGDRIVER v1.10, this function was "FG_SETDACS" (see AX=008Eh);
	  "FG_TCMASK" was AX=005Eh
	This call is ignored in text modes
	The specified colors are considered transparent by "FG_TCXFER"
SeeAlso: AX=00A4h,AX=00A6h
--------V-6200A6-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TCXFER" - COPY REGION EXCLUDING TRANSPARENT
	AX = 00A6h
	CX = source video page
	DX = destination video page
	ES:BX -> copy record (see #2117)
Notes:	For FGDRIVER v1.10, this function was unused; "FG_TCXFER" was AX=005Dh
	Pixels which are in any of the colors defined as transparent with
	  "FG_TCMASK" (see AX=00A5h) are left unchanged in the destination
	  region
	The source and destination regions must not overlap if they are located
	  on the same page
	This call is ignored in text modes
SeeAlso: AX=00A4h,AX=00A5h,AX=00A9h
--------V-6200A7-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TESTMODE" - CHECK IF VIDEO MODE AVAILABLE
	AX = 00A7h
	BX = desired video mode (00h-17h, also 18h-1Dh after "FG_SVGAINIT")
	CX = required number of video pages (ignore memory size if <= 0)="" return:="" ax="status" 0000h="" mode="" not="" available="" with="" requested="" number="" of="" pages="" 0001h="" mode="" is="" available="" note:="" for="" fgdriver="" v1.10,="" this="" function="" was="" unused;"fg_testmode"="" was="" ax="0002h" seealso:="" ax="0005h,AX=0093h" --------v-6200a8-----------------------------="" int="" 62="" u="" -="" fgdriver="" v3.03="" -="" "fg_text"="" -="" display="" string="" of="" characters="" ax="00A8h" cx="length" of="" string="" es:bx="" -=""> string
Notes:	For FGDRIVER v1.10, this function was unused; "FG_TEXT" was AX=0032h
	The string is displayed starting at the text cursor position using the
	  current text attribute (text modes) or color index (graphics modes)
	The text cursor position is updated after this call
SeeAlso: AX=000Ch,AX=007Ch
--------V-6200A9-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TRANSFER" - COPY REGION
	AX = 00A9h
	CX = source video page
	DX = destination video page
	ES:BX -> copy record (see #2117)
Notes:	For FGDRIVER v1.10, this function was unused;"FG_TRANSFER" was AX=005Ch
	The source and destination regions must not overlap if they are located
	  on the same page
SeeAlso: AX=0083h,AX=0087h,AX=0089h,AX=00A6h

Format of FGDRIVER copy record:
Offset	Size	Description	(Table 2117)
 00h	WORD	left edge column of source region
 02h	WORD	right edge column of source region
 04h	WORD	top edge row of source region
 06h	WORD	bottom edge row of source region
 08h	WORD	left edge of destination
 0Ah	WORD	bottom edge of destination
--------V-6200AA-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_VOICE" - START SOUND
	AX = 00AAh
	BX = channel on TI sound chip
	    1-3 = channels 1-3, 4 = channel 4 with periodic noise,
	    5 = channel 4 with white noise
	CX = frequency in Hz (18-32767 for channels 1-3; 0=512 Hz, 1=1024 Hz,
	      2=2048 Hz for channels 4 and 5)
	DX = volume
	SI = duration in clock ticks (continuous if <= 0)="" program:="" fgdriver="" is="" the="" external="" video="" driver="" for="" the="" shareware="" fastgraph/light="" by="" ted="" gruber="" software="" notes:="" for="" fgdriver="" v1.10,="" this="" function="" was="" unused;="" "fg_voice"="" was="" ax="008Ah" this="" function="" is="" only="" available="" on="" the="" pcjr="" and="" tandy="" 1000="" machines="" seealso:="" ax="006Ah,AX=009Dh,AX=00ABh" --------v-6200ab-----------------------------="" int="" 62="" u="" -="" fgdriver="" v3.03="" -="" "fg_voices"="" -="" play="" sounds="" in="" background="" ax="00ABh" es:bx="" -=""> tone array (see #2118)
	CX = number of times to repeat tone array
Notes:	For FGDRIVER v1.10, this function was unused; "FG_VOICES" was AX=008Bh
	This function is only available on the PCjr and Tandy 1000 machines
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00AAh

Format of FGDRIVER tone array element:
Offset	Size	Description	(Table 2118)
 00h	WORD	channel number (0000h terminates array)
 02h	WORD	frequency
 04h	WORD	volume
 06h	WORD	duration in 1/72.8 seconds
--------V-6200AC-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WAITFOR" - DELAY FOR SPECIFIED DURATION
	AX = 00ACh
	BX = duration in clock ticks
Return: after delay elapses
Note:	For FGDRIVER v1.10, this function was unused; "FG_WAITFOR" was AX=0096h
SeeAlso: AX=009Fh,INT 1A/AX=FF01h
--------V-6200AD-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WAITKEY" - FLUSH KEYBOARD BUFFER AND AWAIT KEY
	AX = 00ADh
Return: after next key pressed
Note:	For FGDRIVER v1.10, this function was unused; "FG_WAITKEY" was AX=006Dh
SeeAlso: AX=000Ah,AX=003Ah,AX=0051h,AX=0054h,INT 16/AH=00h
--------V-6200AE-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WAITVR" - ENABLE/DISABLE VERTICAL RETRACE WAIT
	AX = 00AEh
	BX = new state (0000h disabled, 0001h enabled)
Note:	For FGDRIVER v1.10, this function was unused; "FG_WAITVR" did not
	  exist yet
--------V-6200AF-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WHERE" - GET CURRENT CURSOR POSITION
	AX = 00AFh
	ES:BX -> variable pointers (see #2119)
Return: indicated variables filled with cursor row and column for active
	  display
Note:	For FGDRIVER v1.10, this function was unused; "FG_WHERE" was AX=0034h
SeeAlso: AX=0045h,AX=0047h,AX=0055h,AX=0068h

Format of FGDRIVER variable pointers:
Offset	Size	Description	(Table 2119)
 00h	WORD	segment of WORD buffer for cursor row
 02h	WORD	offset of WORD buffer for cursor row
 04h	WORD	segment WORD buffer for cursor column
 06h	WORD	offset WORD buffer for cursor column
--------V-6200B0-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_XALPHA" - CONVERT SCREEN COLUMN TO CHAR COLUMN
	AX = 00B0h
	BX = screen space column
Return: AX = character space column containing specified coordinate
Note:	For FGDRIVER v1.10, this function was unused; "FG_XALPHA" was AX=000Ch
SeeAlso: AX=00B1h,AX=00B2h
--------V-6200B1-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_XCONVERT" - CONVERT CHAR COLUMN TO SCREEN COL
	AX = 00B1h
	BX = character space column
Return: AX = screen space column of leftmost pixel in specified character col
Note:	For FGDRIVER v1.10, this function was unused;"FG_XCONVERT" was AX=000Eh
SeeAlso: AX=00B0h,AX=00B3h
--------V-6200B2-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_YALPHA" - CONVERT SCREEN ROW TO CHARACTER ROW
	AX = 00B2h
	BX = screen space row
Return: AX = character space row containing specified coordinate
Note:	For FGDRIVER v1.10, this function was unused; "FG_YALPHA" was AX=000Dh
SeeAlso: AX=00B0h,AX=00B3h
--------V-6200B3-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_YCONVERT" - CONVERT CHARACTER ROW TO SCREEN ROW
	AX = 00B3h
	BX = character space row
Return: AX = screen space row of topmost pixel in specified character row
Program: FGDRIVER is the external video driver for the shareware
	  Fastgraph/Light by Ted Gruber Software
Note:	For FGDRIVER v1.10, this function was unused;"FG_YCONVERT" was AX=000Fh
SeeAlso: AX=00B1h,AX=00B2h
--------T-6201-------------------------------
INT 62 - Cswitch - GIVE UP REST OF TIME-SLICE
	AH = 01h
Program: Cswitch is a set of multitasking functions by Herb Rose
SeeAlso: AH=05h"Cswitch",AH=06h"Cswitch",INT 15/AX=1000h,INT 2F/AX=1680h
--------N-6201-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - NOP for ETHDEV.ODI
	AH = 01h
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6202-------------------------------
INT 62 - Cswitch - WAIT FOR SEMAPHORE
	AH = 02h
	DX = semaphore number (0-63)
Return: AX = FFFFh bad semaphore number
	     else  success
SeeAlso: AH=03h"Cswitch",AH=04h"Cswitch"
--------N-6202-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - INITIALIZE
	AH = 02h
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=00h"ETHDEV",AH=03h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6203-------------------------------
INT 62 - Cswitch - CHECK SEMAPHORE
	AH = 03h
	DX = semaphore number (0-63)
Return: AX = status
	    FFFFh not owned
	    else  owned
SeeAlso: AH=02h,AH=04h
--------N-6203-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET REAL IP ADDRESS
	AH = 03h
	DS:SI -> DWORD buffer for IP address
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6204-------------------------------
INT 62 - Cswitch - TRIGGER SEMAPHORE
	AH = 04h
	DX = semaphore number (0-63)
Return: AX = status
	    FFFFh bad semaphore number
	    else  success
SeeAlso: AH=02h"Cswitch",AH=03h"Cswitch"
--------N-6204-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - SET ???
	AH = 04h
	BX = ???
	ES:SI -> FAR routine for ???
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6205-------------------------------
INT 62 - Cswitch - SLEEP
	AH = 05h
	BX = seconds to sleep
SeeAlso: AH=01h"Cswitch",AH=06h"Cswitch",AH=08h"Cswitch"
--------N-6205-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 05h
	???
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6206-------------------------------
INT 62 - Cswitch - SUSPEND
	AH = 06h
SeeAlso: AH=05h"Cswitch",AH=08h"Cswitch"
--------N-6206-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 06h
	???
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6207-------------------------------
INT 62 - Cswitch - SPAWN
	AH = 07h
	ES:BX -> function address to start executing at
	CX = priority (1-10)
Return: AX = result/status
	    FFFDh  no free memory control blocks
	    FFFEh  no free task control blocks
	    FFFFh  not enough memory to create new task stack
	    >0	   the tcb number of the new task, indicating no error
SeeAlso: AH=0Fh"Cswitch",AH=10h"Cswitch"
--------N-6207-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 07h
	DS:SI -> ???
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6208-------------------------------
INT 62 - Cswitch - WAKE UP TASK
	AH = 08h
	BX = tcb identifier
SeeAlso: AH=05h,AH=06h
--------N-6208-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 08h
	CX = ???
	ES:SI -> ??? buffer (see #2120)
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"

Format of BW-TCP ??? buffer:
Offset	Size	Description	(Table 2120)
 00h  6 BYTEs	hardware address???
 06h  6 BYTEs	???
 0Ch	WORD	???
 0Eh	WORD	???
----------6208--CXFFFE-----------------------
INT 62 - MS SQL Server/Sybase DBLIBRARY interface - UNINSTALL/GET PSP ADDR
	AH = 08h
	CX = FFFEh
	DX = FFFFh
Return: AX = PSP address of resident DBLIBRARY
Note:	this call does not free the memory allocated to the TSR; the calling
	  code must do the deallocation.
SeeAlso: INT 62"DBLIBRARY"
--------T-6209-------------------------------
INT 62 - Cswitch - SET PRIORITY
	AH = 09h
	BX = new base priority (1-10)
Note:	the lower the priority is numerically, the more often the task will run
--------N-6209-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - HOOK TIMER INTERRUPT
	AH = 09h
Return: CF clear if successful
	    AX = handler ID
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=0Ah"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620A-------------------------------
INT 62 - Cswitch - TEST MESSAGE QUEUE
	AH = 0Ah
	DX = queue number (0-63)
Return: AX = result/message size
	    0000h nothing on queue
	    FFFFh bad queue number
	    else  number of bytes in first message in queue
SeeAlso: AH=0Bh"Cswitch",AH=0Ch"Cswitch"
--------N-620A-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - UNHOOK TIMER INTERRUPT
	AH = 0Ah
	DX = handler ID
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=09h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620B-------------------------------
INT 62 - Cswitch - SEND MESSAGE
	AH = 0Bh
	CX = number of bytes to write
	DS:SI -> buffer
	DX = queue number (0-63)
Return: AX = result/message size
	    0000h no message was on queue
	    FFFEh triggered by something arriving, redo the call
	    FFFFh bad queue number
	    else  number of bytes in message
SeeAlso: AH=0Ah"Cswitch",AH=0Ch"Cswitch"
--------N-620B-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ADD ???
	AH = 0Bh
	AL = ???
	DX = ???
	BP = ???
	ES:SI -> ???
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=0Ch"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620C-------------------------------
INT 62 - Cswitch - READ MESSAGE
	AH = 0Ch
	CX = number of bytes to read
	DS:SI -> buffer
	DX = queue number (0-63)
Return: AX = status
	    FFFFh bad queue number
	    else  number of bytes transferred
SeeAlso: AH=0Ah,AH=0Bh
--------N-620C-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - REMOVE ???
	AH = 0Ch
	DX = ???
	BP = ???
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=0Bh"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620D-------------------------------
INT 62 - Cswitch - DON'T ALLOW TASK TO BE SWAPPED OUT
	AH = 0Dh
SeeAlso: AH=0Eh"Cswitch"
--------N-620D-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - NOP for ETHDEV.ODI
	AH = 0Dh
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-620E-------------------------------
INT 62 - Cswitch - ALLOW TASK TO BE SWAPPED OUT
	AH = 0Eh
SeeAlso: AH=0Dh"Cswitch"
--------N-620E-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - BEGIN CRITICAL SECTION
	AH = 0Eh
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=0Fh"ETHDEV",AH=10h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-620F-------------------------------
INT 62 - Cswitch - LOAD AND RUN PROGRAM FROM DISK
	AH = 0Fh
	ES:BX -> command line
	CX = priority (1-10)
	DX = background flag (nonzero allows loading to EMS)
Return: AX = status
	    0000h task loader queue is full
	    0001h  no error
SeeAlso: AH=07h"Cswitch",AH=10h"Cswitch",AH=13h"Cswitch"
--------N-620F-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - END CRITICAL SECTION
	AH = 0Fh
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=0Eh"ETHDEV",AH=10h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6210-------------------------------
INT 62 - Cswitch - TERMINATE SPAWNED PROGRAM
	AH = 10h
SeeAlso: AH=07h"Cswitch",AH=0Fh"Cswitch"
--------N-6210-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - QUERY CRITICAL SECTION
	AH = 10h
Return: CF clear if no critical section active
	CF set if in critical section
SeeAlso: AH=0Eh"ETHDEV",AH=0Fh"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6211-------------------------------
INT 62 - Cswitch - GET TCB INFORMATION
	AH = 11h
	ES:BX -> a pointer which will be set to the tcb address
Return: AX = tcb indentifier
SeeAlso: AH=12h
--------N-6211-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - SET ???
	AH = 11h
	ES:SI -> ???
Return: CF clear
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6212-------------------------------
INT 62 - Cswitch - GET TCB ADDRESS
	AH = 12h
	ES:BX -> a pointer which will be set to the tcb table address
Return: AX = tcb indentifier
SeeAlso: AH=11h"Cswitch"
--------N-6212-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET SOCKET NUMBER???
	AH = 12h
Return: CF clear if successful
	    AX = socket number??? (memory variable incremented after reading)
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6213-------------------------------
INT 62 - Cswitch - CHECK STATUS OF PREVIOUS LOAD_TASK
	AH = 13h
Return: AX = result
	    FFFCh no Memory Control Blocks available
	    FFFDh no TCBs available
	    FFFEh insufficient memory
	    FFFFh cannot open file
	    0000h load in progress (not done yet)
		 else  tcb indentifier
SeeAlso: AH=0Fh
--------N-6213-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 13h
	CX = ???
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6214-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 14h
	ES:SI -> ???
Return: CF clear if successful
	    AL = 00h
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6215-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET ???
	AH = 15h
Return: CF clear if successful
	    AX = ??? (destroyed???)
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Notes:	call this function after reading the "ETHDEV27" device
	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6216-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 16h
	???
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6217-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
	AH = 17h
	DX = segment of ???
Return: CF clear
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6218-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ALLOCATE AND MAP EMS FOR DRIVER
	AH = 18h
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Notes:	calls function 17h after EMS allocated and mapped
	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------R-6247-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
	AH = 47h
	AL = subfunction (00h-31h)
	???
	CF set
Return: ???
Program: COMMUTE is a remote-control program bundled with Central Point
	  Software's PC Tools
--------R-6248-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
	AH = 48h
	AL = ???
	???
	CF set
Return: ???
--------R-6249-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
	AH = 49h
	???
	CF set
Return: ???
Note:	may be the same as AH=4Ch
--------R-624A-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
	AH = 4Ah
	AL = subfunction (00h-46h)
	???
	CF set
Return: ???
--------R-624B--BX1234-----------------------
INT 62 - PC Tools v7 COMMUTE - ???
	AH = 4Bh
	BX = 1234h
	CX = 1234h
	ES = ???
	CF set
Return: ???
Program: COMMUTE is a remote-control program bundled with Central Point
	  Software's PC Tools
--------R-624C-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
	AH = 4Ch
	BL = subfunction
	    00h ???
	    02h ???
Return: CF clear if successful
	CF set on error
--------R-626262-----------------------------
INT 62 - PC Tools v7 COMMUTE - INSTALLATION CHECK
	AX = 6262h
	CF set
Return: AX = 0000h
	BX = segment of resident code's PSP
Program: COMMUTE is a remote-control program bundled with Central Point
	  Software's PC Tools
--------s-62C0-------------------------------
INT 62 U - GWBTSR - API
	AH = C0h
	AL = function
	    00h installation check
		Return: AX = 00FFh if installed
	    01h ???
Program: GWBTSR is a huge (48K) resident mixer controller for the Gateway 2000
	  sound card (OEM version of Aztech Sound Galaxy)
Index:	installation check;GWBTSR
--------N-62FE-------------------------------
INT 62 - BW-TCP - ETHDRV.SYS - MAP EMS PAGE FRAME
	AH = FEh
	AL = direction
	    00h map in driver's memory block
	    01h map out driver's memory block
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4C to INT FB, selected by configuration
Notes:	this function is supported by at least the SLIP and ODI versions of
	  ETHDEV.SYS
	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: INT 21/AH=3Fh"BW-TCP",INT 62/AH=00h"ETHDEV",INT 62/AH=18h"ETHDEV"
SeeAlso: INT 63"BW-TCP",INT 64/AH=FEh
--------*-63---------------------------------
INT 63 - reserved for user interrupt
--------d-63---------------------------------
INT 63 - Adaptec and OMTI controllers - DRIVE 0 DATA
Desc:	this vector stores the last four bytes of the parameter table for
	  hard disk 0
SeeAlso: INT 60"Adaptec",INT 61"Adaptec",INT 62"Adaptec",INT 64"Adaptec"
--------b-63---------------------------------
INT 63 - TI Professional PC - OPTION ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:	the low word of this vector contains the segment of the RAM data area
	  to be used by the expansion ROM at F400h:4000h, and the high word
	  contains the length of the data area; this segment and size are
	  both set to 0000h if no ROM is installed at F400h:4000h
SeeAlso: INT 60"TI Professional PC",INT 62"TI Professional"
SeeAlso: INT 64"TI Professional PC"
----------63---------------------------------
INT 63 - Oracle SQL Protected Mode Executive - ???
--------d-63---------------------------------
INT 63 - 4+Power FLOPPY CONTROLLER - ORIGINAL INT 13/40
Desc:	the "4+Power" quad floppy controller BIOS hooks INT 13 (or INT 40 if
	  INT 13 has been moved there) and places the old value here
----------63---------------------------------
INT 63 - Kofax KF9X00 image manipulation card interface
--------Q-63---------------------------------
INT 63 - DESQview/X - SOCKET API
Notes:	parameters are passed by patching!! data field immediately following
	  the entry point, as detailed below (see #2121); the preferred
	  method for calling the socket API is via INT 15/AX=DE2Eh
	the installation check consists of testing for the string "dvxunix"
	  (yes, lowercase) at offset 9 from the interrupt handler start
	  (see #2121)
SeeAlso: INT 15/AX=DE2Eh,INT BE"DESQview"
Index:	installation check;DESQview/X socket interface

Format of DESQview/X socket interrupt handler entry:
Offset	Size	Description	(Table 2121)
 00h  3 BYTEs	near jump or short jump + NOP to actual interrupt handler
 03h	WORD	offset from following pointer for initial top of local stack
 05h	DWORD	pointer to argument/stack block (see INT 15/AX=DE2Eh)
 09h  7 BYTEs	signature "dvxunix"
--------b-6300-------------------------------
INT 63 - HP 100LX - MAP HIGH MEMORY
	AH = 00h
	AL = physical page (00h seg C000, 01h seg C400h, ...)
	BX = zero-based logical page
	CX = page number
	DX = device ID (00h system ROM, 05h plugin, etc.)
Return: ???
SeeAlso: AH=01h
--------N-6300-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET IP ADDRESS???
	AH = 00h
	DS:BX -> DWORD containing IP address (big-endian)
Return: CF clear if successful
	CF set on error
	AX destroyed
Range:	INT 4D to INT FC, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=01h"BW-TCP",AH=02h"BW-TCP"
--------b-6301-------------------------------
INT 63 - HP 100LX - SAVE/RESTORE MEMORY MAP
	AH = 01h
	AL = function (00h save, 01h restore)
	???
Return: ???
--------N-6301-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 01h
	ES:BX -> ???
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=00h"BW-TCP",AH=02h"BW-TCP"
--------N-6302-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 02h
	???
Return: ???
SeeAlso: AH=00h"BW-TCP",AH=01h"BW-TCP"
--------N-6303-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - GET IP ADDRESS
	AH = 03h
	DS:SI -> buffer for DWORD IP address (big-endian)
Return: AX destroyed
	CF clear if successful
	CF set on error
Note:	this call may use ARP or RARP to determine the address
--------N-6304-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 04h
	???
Return: ???
--------N-6305-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 05h
	DS:BX -> ???
	ES:SI -> ???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
--------N-6306-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 06h
	???
Return: ???
--------N-6307-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 07h
	???
Return: ???
--------N-6308-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET DEFAULT ??? HANDLER
	AH = 08h
	DS:BX -> DWORD containing IP address
Return: CF clear if successful
	CF set on error
	???
--------N-6309-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - INSTALL ??? HANDLERS
	AH = 09h
	BL = handler type
	ES:SI -> FAR handler of specified type
Return: ???
SeeAlso: AH=0Ah,AH=0Dh
--------N-630A-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - DELETE ??? HANDLERS
	AH = 0Ah
	BL = handler type
Return: CF clear if successful
	CF set on error (no handler of specified type installed)
SeeAlso: AH=09h
--------N-630B-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 0Bh
	AL = ???
	DL = ???
	DS:BX -> ???
	ES:SI -> ???
Return: ???
--------N-630C-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 0Ch
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
--------N-630D-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - INSTALL DEFAULT ??? HANDLER
	AH = 0Dh
	???
Return: ???
Note:	if not already installed, installs a type 06h handler with AH=09h
SeeAlso: AH=09h
--------N-630E-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - CLOSE NETWORK DESCRIPTOR
	AH = 0Eh
	???
Return: ???
SeeAlso: INT 61/AH=08h"PC/TCP",INT 61/AH=09h"PC/TCP",INT 61/AH=18h
--------N-630F-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 0Fh
	AL = ???
	SI = ???
	DS:DI -> ???
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
--------N-6310-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 10h
	DS:DI -> ???
	???
Return: ???
--------N-6311-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 11h
	???
Return: ???
--------N-6312-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - LISTEN FOR INCOMING CONNECTIONS
	AH = 12h
	DS:SI -> ???
	ES:BP -> ???
Return: ???
SeeAlso: INT 61/AH=23h
--------N-6313-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - NOP
	AH = 13h
Return: nothing
Range:	INT 4D to INT FC, selected by configuration
--------N-6314-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - OPEN NETWORK CONNECTION
	AH = 14h
	BX = network descriptor???
	DS:SI -> ???
	ES:BP -> ???
Return: ???
SeeAlso: INT 61/AH=13h"PC/TCP",INT 62/AH=13h"ETHDEV"
--------N-6315-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 15h
	DS:DI -> ???
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
--------N-6316-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - RESET NETWORK CONNECTION
	AH = 16h
	DS:DI -> ???
Return: ???
Note:	calls AH=17h after preprocessing
SeeAlso: AH=17h,INT 61/AH=19h"PC/TCP"
--------N-6317-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 17h
	DS:DI -> ???
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
SeeAlso: AH=18h
--------N-6318-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 18h
	DS:DI -> ???
	???
Return: ???
Note:	same as AH=17h, except performed with interrupts disabled
SeeAlso: AH=17h
--------N-6319-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - WRITE TO THE NETWORK
	AH = 19h
	DS:DI -> ???
	???
Return: BX = number of bytes NOT written
	???
Range:	INT 4D to INT FC, selected by configuration
Note:	calls AH=17h with interrupts disabled and ??? set to 01h
SeeAlso: AH=1Ah,AH=1Bh,INT 61/AH=1Ah"PC/TCP"
--------N-631A-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - READ FROM THE NETWORK
	AH = 1Ah
	CX = maximum number of bytes to read
	ES:BP -> ???
	???
Return: CX = number of bytes actually read
	???
SeeAlso: AH=19h,INT 61/AH=1Bh"PC/TCP"
--------N-631B-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 1Bh
	CX = ???
	ES:BP -> ???
Return: DX = ???
	???
Range:	INT 4D to INT FC, selected by configuration
--------N-631C-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 1Ch
	DS:DI -> ???
	???
Return: ???
Note:	calls AH=17h with ???
SeeAlso: AH=17h
--------N-631D-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 1Dh
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
--------N-631E-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 1Eh
	DS:BX -> DWORD containing IP address (big-endian)
	???
Return: CF clear if successful
	CF set on error
	???
--------N-631F-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET SOCKET ??? HANDLER
	AH = 1Fh
	BX = socket number
	ES:SI -> FAR function for ???
Return: CF clear if successful
	CF set on error (out of slots)
SeeAlso: AH=20h
--------N-6320-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - REMOVE SOCKET ??? HANDLER
	AH = 20h
	BX = socket number
Return: CF clear if successful
	CF set on error (not set)
Range:	INT 4D to INT FC, selected by configuration
SeeAlso: AH=1Fh
--------N-6321-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 21h
	ES:SI -> ???
Return: ???
SeeAlso: INT 61/AH=1Ch"PC/TCP"
--------N-6322-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - REMOVE ??? HANDLER
	AH = 22h
Return: CF clear
Range:	INT 4D to INT FC, selected by configuration
Note:	decrements a counter if not already zero, and calls AH=0Ah with BL=11h
	  if the counter reaches zero
--------N-6323-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 23h
	DS:BX -> ???
	ES:SI -> 6-byte buffer for ???
Return: CF clear if successful
	CF set on error
--------N-6324-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - GET SOCKET
	AH = 24h
Return: AX = socket number (0400h-FFFFh)
Range:	INT 4D to INT FC, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
SeeAlso: INT 62/AH=12h"ETHDEV",INT 64"BW-NFS"
--------N-6325-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - GET INTERNET ADDRESS
	AH = 25h
Return: CL:CH:DL:DH = caller's Internet address
SeeAlso: AH=26h,INT 61/AH=05h"PC/TCP"
--------N-6326-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET INTERNET ADDRESS???
	AH = 26h
	CL:CH:DL:DH = Internet address
Return: nothing
Range:	INT 4D to INT FC, selected by configuration
Note:	this function sets a different variable than AH=25h returns
SeeAlso: AH=25h
--------N-6327-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET ???
	AH = 27h
	BX = ???
	ES:SI -> ???
Return: ???
--------N-6328-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 28h
	???
Return: ???
--------N-6329-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
	AH = 29h
	???
Return: ???
Range:	INT 4D to INT FC, selected by configuration
Note:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
--------*-64---------------------------------
INT 64 - reserved for user interrupt
--------d-64---------------------------------
INT 64 - Adaptec controllers - DRIVE 1 DATA
Desc:	this vector stores the first four bytes of the parameter table for
	  hard disk 1
Notes:	these vectors are used by the following Adaptec controllers:
	    ACB 2370 A/B/C, ACB 2372 A/B/C, ACB 2333 A/B, 2322B-8, 2322B-16
	these vectors are NOT used by the following Adaptec controllers:
	    ACB 2310, ACB 2312, ACB 2320D, ACB 2322D
SeeAlso: INT 60"Adaptec",INT 65"Adaptec",INT 66"Adaptec",INT 67"Adaptec"
--------b-64---------------------------------
INT 64 - TI Professional PC - OPTION ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:	the low word of this vector contains the segment of the RAM data area
	  to be used by the expansion ROM at F400h:6000h, and the high word
	  contains the length of the data area; this segment and size are
	  both set to 0000h if no ROM is installed at F400h:6000h
SeeAlso: INT 60"TI Professional PC",INT 63"TI Professional"
SeeAlso: INT 65"TI Professional PC"
----------64---------------------------------
INT 64 - Oracle SQL Protected Mode Executive - ???
--------N-64---------------------------------
INT 64 - Novell NetWare to v2.0a - LOW-LEVEL API
Note:	equivalent to INT 7A for NetWare versions through 2.0a only; later
	  versions do not use this interrupt for IPX/SPX access, instead
	  getting an entry point from INT 2F/AX=7A00h
SeeAlso: INT 2F/AX=7A00h,INT 7A"Novell"
--------h-64---------------------------------
INT 64 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
SeeAlso: INT 65"DG10",INT 66"DG10"
--------r-64---------------------------------
INT 64 - Extended Batch Language v3.14+
	AH = function
	    00h to 5Fh chained to previous handler
	    60h to 6Ch reserved, return immediately
	    80h to FFh chained to previous handler
	    6Dh (v4.01+) insert tone in queue
		AL = ???
		CX = frequency in Hertz
		DL = duration in clock ticks
		Return: AL = 00h if note stored
			   = 01h if no room to store
	    6Eh clear ??? counter/flag
	    6Fh return counter/flag that AH=6Eh clears
	    70h ???
		AL = ???
	    71h ???
		AL = ???
	    72h ???
	    73h insert byte at end of keyboard buffer
		AL = byte to insert
		Return: AL = 00h if byte inserted
			   = 01h if no room to store
	    74h insert byte at front of keyboard buffer
		AL = byte to insert
		Return: AL = 00h if byte inserted
			   = 01h if no room to store
	    75h ???
	    76h get keyboard "stack" status
		AL = 'K' if kbd read will read physical keyboard
		     'S' if it will read EBL internal keyboard buffer
		AH = ???
	    77h clear internal keyboard buffer
	    78h ???
		AL = ???
	    79h ???
	    7Ah ???
		AL = ???
	    7Bh ???
		AL = ???
	    7Ch ???
		AL = ???
	    7Dh ???
		AL = ???
		 7Eh clear buffer for ???
	    7Fh installation check
		Return: CX = version in BCD
			DI = segment of ???
			BX = segment of next program's PSP???
Program: Extended Batch Language is a batch-file enhancer by Seaware
Notes:	the chaining does not check whether the interrupt had been hooked
	  before, so if you try to chain when the previous vector was
	  0000h:0000h, you'll be in trouble
	functions 72h and 7Ah-7Dh appear to be interfaces to the optional
	  floating-point and extended function packages
Index:	installation check;EBL|installation check;Extended Batch Language
--------d-64---------------------------------
INT 64 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
Note:	This vector is overwritten by Pdisk to install custom harddrive types.
	  It can either destroy 4 vectors and take no memory or TSR and take
	  up some memory.
SeeAlso: INT 65"Pdisk"
--------N-6401-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
	AH = 01h
	ES:BX -> ??? (at least 8 bytes)
	ES:BP -> DWORD ???
	???
Return: CF clear if successful
	    ???
	CF set on error
	    CX = 0000h
Range:	INT 4E to INT FD, selected by configuration
Notes:	the Beame&Whiteside TCP/IP protocol stack uses two consecutive
	  interrupts (62h and 63h by default); the BW-NFS client uses a third
	  consecutive interrupt (64h by default) if it is loaded
	the BWRPC installation check consists of determining the interrupt
	  vector assigned to it (two more than the value returned by reading
	  the ETHDEV27 device), and testing whether the word immediately
	  preceding the interrupt handler is 4257h ('BW')
SeeAlso: INT 62/AH=00h"ETHDEV",INT 63"BW-TCP"
Index:	installation checks;BWRPC
--------N-6402-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
	AH = 02h
	DS:DI -> ???
Return: ???
Note:	this call is passed directly through to INT 62/AH=07h
SeeAlso: INT 62/AH=07h"ETHDEV"
--------N-6403-------------------------------
INT 64 U - BW-NFS - BWRPC - ADD ???
	AH = 03h
	AL = ???
	BP = ???
	ES:SI -> ???
Return: ???
Note:	this call is passed directly through to INT 62/AH=0Bh
SeeAlso: AH=04h,INT 62/AH=0Bh"ETHDEV"
--------N-6404-------------------------------
INT 64 U - BW-NFS - BWRPC - REMOVE ???
	AH = 04h
	BP = ???
Return: ???
Range:	INT 4E to INT FD, selected by configuration
Note:	this call is passed directly through to INT 62/AH=0Ch
SeeAlso: AH=03h,INT 62/AH=0Ch"ETHDEV"
--------N-6405-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
	AH = 05h
	CX = ???
Return: ???
Note:	this call is passed directly through to INT 62/AH=13h
SeeAlso: INT 62/AH=13h"ETHDEV"
--------N-6406-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
	AH = 06h
	ES:SI -> ???
Return: AL = 00h if CF clear
Range:	INT 4E to INT FD, selected by configuration
Note:	this call is passed directly through to INT 62/AH=14h
SeeAlso: INT 62/AH=14h"ETHDEV"
--------N-6407-------------------------------
INT 64 U - BW-NFS - BWRPC - GET IP ADDRESS
	AH = 07h
Return: CX:DX = IP address
--------N-6410-------------------------------
INT 64 U - BW-NFS - BWRPC - CALL ETHDEV.SYS
	AH = 10h
	AL = ETHDEV function number
	other registers as appropriate for ETHDEV call
Return: as returned by ETHDEV
Note:	this call is passed directly through to INT 62
SeeAlso: INT 62/AH=00h"ETHDEV"
--------N-6411-------------------------------
INT 64 U - BW-NFS - BWRPC - NOP???
	AH = 11h
Return: CF clear
Range:	INT 4E to INT FD, selected by configuration
--------N-64FE-------------------------------
INT 64 - BW-NFS - BWRPC - MAP EMS PAGE FRAME
	AH = FEh
	AL = direction
	    00h map in driver's memory block
	    01h map out driver's memory block
Return: CF clear if successful
	CF set on error
	    AL = error code
Range:	INT 4E to INT FD, selected by configuration
Note:	this call is passed through directly to ETHDEV.SYS (see INT 62/AH=FEh)
SeeAlso: INT 21/AH=3Fh"BW-TCP",INT 62/AH=FEh,INT 63"BW-TCP"
--------*-65---------------------------------
INT 65 - reserved for user interrupt
--------d-65---------------------------------
INT 65 - Adaptec controllers - DRIVE 1 DATA
Desc:	this vector stores the second four bytes of the parameter table for
	  hard disk 1
SeeAlso: INT 64"Adaptec",INT 66"Adaptec",INT 67"Adaptec"
--------b-65---------------------------------
INT 65 - TI Professional PC - OPTION ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:	the low word of this vector contains the segment of the RAM data area
	  to be used by the expansion ROM at F400h:8000h, and the high word
	  contains the length of the data area; this segment and size are
	  both set to 0000h if no ROM is installed at F400h:8000h
SeeAlso: INT 60"TI Professional PC",INT 64"TI Professional"
SeeAlso: INT 66"TI Professional PC"
--------h-65---------------------------------
INT 65 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
SeeAlso: INT 64"DG10",INT 66"DG10"
--------N-65---------------------------------
INT 65 - FTP Software NDIS-Packet Driver adapter - POST PROCESSING INTERRUPT
--------U-65---------------------------------
INT 65 - SD.COM v6.2
Desc:	The unregistered version of SD62.COM uses the low byte of this vector
	  to count the number of invocations, displaying a registration
	  reminder each time after the 20th use.
--------d-65---------------------------------
INT 65 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
SeeAlso: INT 64"Pdisk",INT 66"Pdisk"
--------s-65---------------------------------
INT 65 - Ad Lib SOUND.COM - INTERFACE
	SI = function number (see also entries below)
	    0000h Init
		 0002h RelTimeStart
	    0003h SetState
	    0004h GetState
	    0005h Flush
	    0006h SetMode
	    0007h GetMode
	    0008h SetRelVolume
	    0009h SetTempo
	    000Ah SetTranspose
	    000Bh GetTranspose
	    000Ch SetActVoice
	    000Dh GetActVoice
	    000Eh PlayNoteDel
	    000Fh PlayNote
	    0010h SetTimbre
	    0011h SetPitch
	    0012h SetTickBeat
	    0013h NoteOn
	    0014h NoteOff
	    0015h Timbre
	    0016h SetPitchBend
	    0017h WaveForm
	ES:BX -> arguments
Note:	the installation check consists of checking for the signature block
	  immediately preceding the interrupt handler (see #2122)
SeeAlso: SI=8000h
Index:	installation check;Ad Lib SOUND.COM

Format of AdLib signature block:
Offset	Size	Description	(Table 2122)
 00h	WORD	version number
 02h 19 BYTEs	"SOUND-DRIVER-AD-LIB"
 15h	BYTE	01h
 16h	BYTE	01h
 17h	BYTE	00h
--------s-65----SI0000-----------------------
INT 65 - Ad Lib SOUND.COM - INITIALIZE (RESET)
	SI = 0000h
--------s-65----SI0003-----------------------
INT 65 - Ad Lib SOUND.COM - SET STATE
	SI = 0003h
	ES:BX -> WORD new state (0000h disabled, 0001h enabled)
SeeAlso: SI=0004h
--------s-65----SI0004-----------------------
INT 65 - Ad Lib SOUND.COM - GET STATE
	SI = 0004h
Return: AX = status
	    0000h all done playing sounds
	    else  still playing sounds
SeeAlso: SI=0003h
--------s-65----SI0006-----------------------
INT 65 - Ad Lib SOUND.COM - SET MODE
	SI = 0006h
	ES:BX -> WORD new mode (0000h melodic, 0001h percussive)
SeeAlso: SI=0007h
--------s-65----SI0007-----------------------
INT 65 - Ad Lib SOUND.COM - GET MODE
	SI = 0007h
Return: AX = mode
	    0000h melodic
	    0001h percussive
SeeAlso: SI=0006h
--------s-65----SI000C-----------------------
INT 65 - Ad Lib SOUND.COM - SET ACTIVE VOICE
	SI = 000Ch
	ES:BX -> WORD voice = 0000h to 0008h
SeeAlso: SI=000Dh
--------s-65----SI000D-----------------------
INT 65 - Ad Lib SOUND.COM - GET ACTIVE VOICE
	SI = 000Dh
Return: AX = voice (0000h to 0008h)
SeeAlso: SI=000Ch
--------s-65----SI8000-----------------------
INT 65 u - Media Vision FM.COM v4.1a+ - GET INTERNAL DATA STRUCTURES
	SI = 8000h
Return: DX:AX -> internal data structures
Program: FM.COM is an Ad Lib SOUND.COM-compatible driver for Media Vision's
	  Pro Audio Spectrum sound boards
SeeAlso: SI=8001h
--------s-65----SI8001-----------------------
INT 65 u - Media Vision FM.COM v4.1a+ - GET VOICE COUNT
	SI = 8001h
Return: AX = ???
	DX = number of voices??? (09h or 0Bh)
SeeAlso: SI=8000h
--------s-65----SI8002-----------------------
INT 65 - Media Vision FM.COM v4.1a+ - START BACKGROUND FM SOUNDS
	SI = 8002h
SeeAlso: SI=8003h
--------s-65----SI8003-----------------------
INT 65 - Media Vision FM.COM v4.1a+ - STOP BACKGROUND FM SOUNDS
	SI = 8003h
SeeAlso: SI=8002h
--------s-65----SI8004-----------------------
INT 65 U - Media Vision FM.COM v4.1a+ - GET ???
	SI = 8004h
Return: AX = ??? (0280h)
	DX = ??? (01A0h)
--------s-65----SI8005-----------------------
INT 65 U - Media Vision FM.COM v4.1a+ - ???
	SI = 8005h
	???
Return: ???
SeeAlso: SI=8000h
--------S-65---------------------------------
INT 65 U - EZRECV v1.0 - API
	AX = function
	    0000h ???
		Return: AX = ??? or FFFFh
	    0001h ???
		Return: AX = status (0000h or 0001h)
	    0002h ???
		Return: AX = status (0000h or 0001h)
	    0003h set ??? to 0001h
		Return: AX = 0000h
		 0004h ???
		Return: AX = ???
Return: BH = COM port being used
	BL = speed???
	CH = ???
	CL = ???
	DX = ???
	DS = ???
	ES = EZRECV data segment
Program: EZRECV is a background Zmodem file receiver by Express Consulting
--------*-66---------------------------------
INT 66 - reserved for user interrupt
--------d-66---------------------------------
INT 66 - Adaptec controllers - DRIVE 1 DATA
Desc:	this vector stores the third four bytes of the parameter table for
	  hard disk 1
SeeAlso: INT 64"Adaptec",INT 65"Adaptec",INT 67"Adaptec"
--------b-66---------------------------------
INT 66 - TI Professional PC - SYSTEM INFORMATION (NOT A VECTOR!)
Desc:	the low word of this vector contains the system memory size in
	  paragraphs; the third byte contains the number of outstanding
	  interrupt requests, and the fourth byte contains a description
	  of the installed drive types (see #2123)
SeeAlso: INT 60"TI Professional PC",INT 67"TI Professional"

Bitfields for TI Professional drive type information:
Bit(s)	Description	(Table 2123)
 7	floppy drive D: has 80 tracks
 6	floppy drive D: is double-sided
 5	floppy drive C: has 80 tracks
 4	floppy drive C: is double-sided
 3	floppy drive B: has 80 tracks
 2	floppy drive B: is double-sided
 1	floppy drive A: has 80 tracks
 0	floppy drive A: is double-sided
--------h-66---------------------------------
INT 66 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
SeeAlso: INT 64"DG10"
--------N-66---------------------------------
INT 66 C - Nanosoft, Inc. TurboNET - NETWORK PROCESSING ???
Program: TurboNET is a NetBIOS-based file redirector and server
Note:	hooked but not used (IRET) by both redirector and server; called from
	  server's INT 28 handler
SeeAlso: INT 2F/AX=8100h
--------d-66---------------------------------
INT 66 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
SeeAlso: INT 64"Pdisk",INT 67"Pdisk"
--------W-66---------------------------------
INT 66 - Microsoft Windows VITD.386 Virtual Interval Timer
Note:	This Windows 3.x Virtual Device Driver implements a virtual timer
	  which will expire and call INT 66.  This timer can be used to
	  calculate elapsed execution time etc.
--------K-66---------------------------------
INT 66 - Newkey v5.4 - INSTALLATION VECTOR
Return: immediately (IRET)
Program: Newkey is a shareware keyboard macro program by Frank A. Bell
Range:	INT 60h to INT 67h, selected by scanning for highest unused vector
Note:	the installation check consists of testing for the signature bytes
	  FDh FCh FFh FEh at offset 03h in the interrupt handlers segment
BUG:	the code obviously intends to use INT F0-FE, INT 70-77, and INT 68-6F
	  before falling back to INT 60-67, but only uses the last of these
	  ranges in v5.4
SeeAlso: INT 2F/AX=E300h
Index: installation checks;Newkey|Newkey;installation check
--------U-66---------------------------------
INT 66 - PC-Magazin - INCA
	details not yet availble
Program: INCA is a utility from PC-Magazin (the German edition of PC Magazine)
	  issue 51-52/85.
SeeAlso: INT 61"SWAPx"
--------F-6601-------------------------------
INT 66 - BitFax Scheduler - SET MODE???
	AH = 01h
SeeAlso: AH=02h
--------F-6602-------------------------------
INT 66 - BitFax Scheduler - SET MODE???
	AH = 02h
SeeAlso: AH=01h
--------F-6603-------------------------------
INT 66 - BitFax Scheduler - SCHEDULE FAX TRANSMISSIONS
	AH = 03h
	???
Return: ???
SeeAlso: AH=05h
--------F-6604-------------------------------
INT 66 - BitFax Scheduler - GET STATUS???
	AH = 04h
Return: AX = ??? (0000h or 0001h)
	DX = BitSched version???  (for versions >= 3.00)
	    9796h (ver. 3.00)
	    97E6h (ver. 3.02)
	    92D0h (ver. 3.04.06)
		 9510h (ver. 3.06.02)
SeeAlso: AH=06h,AX=3345h,INT 2F/AX=8000h"FaxBIOS"
--------F-6605-------------------------------
INT 66 - BitFax Scheduler - CONVERT FILE AND SEND FAX
	AH = 05h
	BX:CX -> command block (see #2124)
	???
Return: ???
SeeAlso: AH=03h

Format of BitFax command block:
Offset	Size	Description	(Table 2124)
 00h 18 BYTEs	configuration bytes???
 12h	BYTEs	ASCIZ temporary file name to place converted fax
 52h	BYTEs	ASCIZ directory containing BitFax executables
 92h	BYTEs	ASCIZ telephone number
 C2h	BYTE	cover page control (00h don't send, 01h do send cover page)
 C3h 15 BYTEs	configuration bytes???
 E2h	BYTEs	ASCIZ path of BITFAX.TRA file (containing additional
		  configuration information???)
122h	BYTEs	configuration bytes???
12Ch	BYTE	00h don't send cover page
		01h send cover page
12Dh  7 BYTEs	configuration bytes???
134h	BYTEs	ASCIZ path of file to send
174h	BYTEs	more configuration bytes???
	???
--------F-6606-------------------------------
INT 66 - BitFax Scheduler - SET MODE???
	AH = 06h
Return: DX = BitSched version??? (same as AH=04h)
SeeAlso: AH=04h
--------s-660688-----------------------------
INT 66 - IBMSND driver - PLAY 8-BIT DIGITIZED SOUND
	AX = 0688h
	DS:SI -> SNDSTRUC (see #2125)
Return: ???
Program: The IBMSND driver is part of John W. Ratcliff's
	   The IBM Digitized Sound Package
Note:	the installation check consists of looking for a valid signature
	  string six bytes prior to the interrupt handler; this string may
	  be either "KERN" or "MIDI" (in the latter case, call AX=0701h to
	  determine whether IBMSND is installed)
SeeAlso: AX=068Bh,AX=068Fh,AX=0701h

Format of IBMSND driver SNDSTRUC:
Offset	Size	Description	(Table 2125)
 00h	DWORD	-> audio data
 04h	WORD	length of audio data in bytes
 06h	DWORD	-> playback status flag
 0Ah	WORD	playback frequency
--------s-660689-----------------------------
INT 66 - IBMSND driver - REPORT SOUND DRIVER STATUS
	AX = 0689h
Return: AX = status
	    0000h no sound playing
	    0001h sound effect is currently playing
SeeAlso: AX=0688h,AX=068Bh,AX=068Ch
--------s-66068A-----------------------------
INT 66 - IBMSND driver - PREFORMAT SOUND
	AX = 068Ah
	DS:SI -> SNDSTRUC (see #2125)
Desc:	convert audio data into output hardware format
SeeAlso: AX=068Bh
--------s-66068B-----------------------------
INT 66 - IBMSND driver - PLAY PREFORMATTED SOUND
	AX = 068Bh
	DS:SI -> SNDSTRUC (see #2125)
Return: AX = ???
SeeAlso: AX=0688h,AX=068Ah,AX=068Fh
--------s-66068C-----------------------------
INT 66 - IBMSND driver - REPORT AUDIO DRIVER CAPABILITIES
	AX = 068Ch
Return: AX = capabilities (see #2126)
	DX = playback rate if fixed-frequency playback
SeeAlso: AX=0689h,AX=068Dh

Bitfields for IBMSND driver capabilities:
Bit(s)	Description	(Table 2126)
 0	can play audio in background
 1	data is massaged
 2	driver plays at fixed frequency, resampling input data to fit
 3	driver uses timer interrupt
--------s-66068D-----------------------------
INT 66 - IBMSND driver - REPORT CURRENT SAMPLE ADDRESS
	AX = 068Dh
Return: AX = current playback address
Desc:	determine what point in the audio data the playback has reached, for
	  synchronization with video or animation effects
Notes:	this function applies to background playback only
	the reported address may be an approximation rather than the exact
	  address
SeeAlso: AX=068Ch,AX=0691h
--------s-66068E-----------------------------
INT 66 - IBMSND driver - SET CALLBACK ADDRESS
	AX = 068Eh
	BX:DX -> callback function
	    0000h:0000h to disable callback
	DS = value to load into DS when calling the callback function
Desc:	specify the function to be called when playback of a sound effect is
	  completed
Note:	the callback function will typically be called during a hardware
	  interrupt, so all the usual precautions should be taken except for
	  preserving registers
SeeAlso: AX=0691h
--------s-66068F-----------------------------
INT 66 - IBMSND driver - STOP CURRENT SOUND
	AX = 068Fh
Desc:	cause any currently-playing sound effect to be terminated
SeeAlso: AX=0688h,AX=068Bh
--------s-660690-----------------------------
INT 66 - IBMSND driver - "SetAudioHardware" SET UP HARDWARE INFO [obsolete]
	AX = 0690h
Note:	this function is no longer implemented
--------s-660691-----------------------------
INT 66 - IBMSND driver - REPORT CALLBACK ADDRESS
	AX = 0691h
Return: AX:DX -> current callback function
	BX = original caller's DS register
Program: The IBMSND driver is part of John W. Ratcliff's
	   The IBM Digitized Sound Package
SeeAlso: AX=068Eh
--------s-660701-----------------------------
INT 66 - IBM Digitized Sound Package MIDI driver - GET DIGITIZED SOUND CAPABIL
	AX = 0701h
Return: AX = digitized sound capabilities
	    0000h if digitized sound driver (functions 06xxh) not available
Note:	the installation check for the MIDI driver is to test for the signature
	  "MIDI" six bytes before the interrupt handler
SeeAlso: AX=0688h
--------n-6610-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - GET ???
	AH = 10h
Return: CF clear
	AX = 0000h
	BX = ??? (0012h)
	DX:CX -> TDMOUSE INT 33 handler (IRET to hide mouse from other apps)
Program: TDMOUSE is a PenDOS hardware driver which allows a mouse to emulate
	  a touchpad; PenDOS is a set of programs by Communication Intelligence
	  Corporation which makes applications pen-aware
--------n-6611-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - SET ??? HANDLER
	AH = 11h
	DX:BX -> new handler for ???
Return: CF clear
	AX = 0000h
	DX:BX -> old handler for ??? (points at RETF by default)
--------n-6612-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - INITIALIZE
	AH = 12h
Return:	CF clear
	AX = 0000h
Note:	this function calls the old mouse handler with functions 0000h, 0002h,
	  0007h, 0008h, 000Fh, 0004h, and 000Ch (in that order)
SeeAlso: AH=13h
--------n-6613-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - SHUTDOWN???
	AH = 13h
Return: CF clear
	other register as returned by INT 33/AX=0000h
SeeAlso: AH=12h
--------n-6614-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - ???
	AH = 14h
	BX = ???
	CX = ???
Return: CF clear
	AX = 0000h
--------n-6615-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - SET ??? HANDLER
	AH = 15h
	DX:BX -> new handler for ???
Return: CF clear
	AX = 0000h
	DX:BX -> old handler (points at RETF by default)
--------n-6616-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - UNUSED FUNCTIONS
	AH = 16h to 1Fh
Return: CF set
Program: TDMOUSE is a PenDOS hardware driver which allows a mouse to emulate
	  a touchpad; PenDOS is a set of programs by Communication Intelligence
	  Corporation which makes applications pen-aware
--------n-6621-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 21h
Return: CF clear if successful
	CF set on error
Note:	this function sets ??? flag or counter (also set by AH=2Fh) to FFFFh
--------n-6622-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 22h
	DX:BX -> ???
	CL = ???
Return: CF clear if successful
	CF set on error
	???
SeeAlso: AH=24h
--------n-6623-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 23h
	???
Return: CF clear if successful
	CF set on error
	???
--------n-6624-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 24h
	DX:BX -> ???
	CL = ???
Return: CF clear if successful
	CF set on error
	???
SeeAlso: AH=22h
--------n-6625-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 25h
	CL = ??? (NOP if 00h)
	???
Return: CF clear if successful
	CF set on error
	???
--------n-6627-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 27h
	BL = ???
	BH = ???
	CL = ??? (0-3)
	DL = ??? (> BL)
	DH = ??? (> BH)
Return: ???
--------n-6628-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 28h
	???
Return: CF clear if successful
	CF set on error
	???
Note:	this function sets ??? flag or counter (also set by AH=2Fh) to FFFFh
--------n-6629-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 29h
	???
Return: ???
Note:	this function sets ??? flag or counter (also set by AH=2Fh) to FFFFh
--------n-662A-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 2Ah
	DL = ??? (nonzero)
	DH = ??? (nonzero)
Return: CF clear if successful
	CF set on error
	???
--------n-662B-------------------------------
INT 66 - PenDOS - PINK - ???
	AH = 2Bh
	???
Return: CF clear if successful
	CF set on error
	???
--------n-662F-------------------------------
INT 66 - PenDOS - PINK - INITIALIZE
	AH = 2Fh
	???
Return: AX = status
	    0000h failed
	    FFFFh successful
	???
Note:	this function sets ??? flag or counter to FFFFh and hooks INT 1Ch
--------F-663345-----------------------------
INT 66 - BitFax Scheduler - REMOVE TSR FROM MEMORY
	AX = 3345h
Return: AX = FFFFh error removing TSR
Note:	the installation check consists of checking for the signature
	  "BitFax Scheduler" beginning two bytes past the interrupt handler
SeeAlso: AH=04h,INT 2F/AH=2Ah,INT 2F/AX=CB00h
Index:	installation check;BitFax Scheduler
--------n-6640-------------------------------
INT 66 - PenDOS - PKEYUS - GET VERSION
	AH = 40h
Return: CF clear
	AX = 0000h
	BH = major version (02h for version bundled with IBM DOS 6.1)
	BL = minor version (00h for version bundled with IBM DOS 6.1)
	DL = ??? (4Eh)
	DH = ??? (0Eh)
--------n-6641-------------------------------
INT 66 - PenDOS - PKEYUS - SET ???
	AH = 41h
	BX = ???
	CL = ??? (08h-20h)
	DL = screen column??? (<= 50h)="" dh="screen" row???=""><= 3ch)="" return:="" ax="status" (0000h="" successful,="" 0001h="" error)="" note:="" this="" function="" also="" sets="" an="" internal="" flag="" seealso:="" ah="42h,AH=43h" --------n-6642-------------------------------="" int="" 66="" -="" pendos="" -="" pkeyus="" -="" ah="42h" return:="" cf="" clear="" ax="0000h" note:="" this="" function="" also="" clears="" the="" flag="" set="" by="" ah="41h" seealso:="" ah="41h" --------n-6643-------------------------------="" int="" 66="" -="" pendos="" -="" pkeyus="" -="" ah="43h" bx="???" dx="???" return:="" ax="status" 0000h="" if="" ah="41h" flag="" set="" else="" ah="???" al="???" bx="???" dx="???" seealso:="" ah="41h" --------n-6644-------------------------------="" int="" 66="" -="" pendos="" -="" pkeyus="" -="" unused="" functions="" ah="44h" to="" 4fh="" return:="" cf="" set="" --------n-6650-------------------------------="" int="" 66="" -="" pendos="" -="" pmouse="" -="" set="" ah="50h" bx="???" ch="???" dx="???" return:="" cf="" clear="" ax="0000h" --------n-6651-------------------------------="" int="" 66="" -="" pendos="" -="" pmouse="" -="" nop="" ah="51h" return:="" cf="" set="" --------n-6652-------------------------------="" int="" 66="" -="" pendos="" -="" pmouse="" -="" ah="52h" bx="???" cl="???" dx="???" return:="" --------n-6653-------------------------------="" int="" 66="" -="" pendos="" -="" pmouse="" -="" unused="" functions="" ah="53h" to="" 57h="" return:="" cf="" set="" --------n-66---------------------------------="" int="" 66="" -="" pendos="" -="" pmouse="" -="" alternate="" api="" ah="function" (58h-5fh)="" note:="" these="" functions="" exactly="" duplicate="" ah="50h-57h" ----------66aa02-----------------------------="" int="" 66="" -="" helptsr="" v2.10="" -="" installation="" check="" ax="AA02h" return:="" es:di="" -=""> 7 byte signature "HelpTSR" if resident
Program: HelpTSR is a resident viewer by David Jurgens for HelpPC
--------n-66C5-------------------------------
INT 66 - PenDOS - VLOAD - API
	AH = C5h
	???
Return: ???
--------t-66FFFBBXFFFB-----------------------
INT 66 - MicroHelp Stay-Res Plus - ???
	AX = FFFBh
	BX = FFFBh
	???
Return: ???
SeeAlso: AX=FFFEh,INT 2D"AMIS"
--------t-66FFFEBXFFFE-----------------------
INT 66 - MicroHelp Stay-Res/Stay-Res Plus - UNINSTALL
	AX = FFFEh
	BX = FFFEh
Return: only if unsuccessful
Notes:	installation check is for the interrupt handler to begin with the bytes
	  FBh 9Ch or 9Ch FAh, and the program name (not case-sensitive) to
	  appear at offset 0005h (older versions) or the offset returned by
	  AX=FFFFh/BX=FFF0h in the interrupt handler segment.
	Programs which use Stay-Res include ThesPlus (program name "THESPLUS")
	  and Personal Calendar (program name "CAL") by Paul Mun~oz-Colman.
SeeAlso: AX=FFFBh,AX=FFFFh,INT 2D"AMIS"
Index:	installation check;MicroHelp Stay-Res|installation check;ThesPlus
Index:	installation check;Personal Calendar|installation check;CAL
--------t-66FFFFBXFFF0-----------------------
INT 66 - MicroHelp Stay-Res Plus - FIND PROGRAM NAME
	AX = FFFFh
	BX = FFF0h
Return: DI = offset of program name in interrupt handler segment
SeeAlso: AX=FFFBh,AX=FFFEh,INT 2D"AMIS"
--------d-67---------------------------------
INT 67 - Adaptec controllers - DRIVE 1 DATA
Desc:	this vector stores the last four bytes of the parameter table for
	  hard disk 1
SeeAlso: INT 64"Adaptec",INT 65"Adaptec",INT 66"Adaptec"
--------b-67---------------------------------
INT 67 - TI Professional PC - SYSTEM DATA (NOT A VECTOR!)
Desc:	this vector contains the TI Pro's system configuration words
	  (see #2127)
SeeAlso: INT 66"TI Professional PC"

Bitfields for TI Professional PC System Configuration doubleword:
Bit(s)	Description	(Table 2127)
 0	8087 present
 31-1	reserved (0)
--------d-67---------------------------------
INT 67 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
SeeAlso: INT 64"Pdisk",INT 66"Pdisk"
--------I-67---------------------------------
INT 67 - Sangoma CCPOP 3270 resident module
SeeAlso: INT 61"Sangoma",INT 68"Sangoma"
--------U-67---------------------------------
INT 67 - CUCKOO.COM - INSTALLATION CHECK
Program: CUCKOO is a resident on-screen clock with optional hourly chime or
	  cuckoo by an unknown author with revisions by Thomas A. Lundin
Note:	this is not a vector; when loaded for the first time, CUCKOO.COM uses
	  the last unused (0000h:0000h) vector in the range 60h-67h to store
	  the signature value 434Ch:4F4Bh ('CLOK')
--------N-6700-------------------------------
INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE AND WAIT
	AH = 00h
	DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #2128)
	AH = semaphore owner if status=02h
SeeAlso: AH=01h,AH=02h"PC-NET",INT 7F/AH=00h

(Table 2128)
Values for PC-NET semaphore function status:
 00h	successful
 01h	invalid function
 02h	semaphore already locked
 03h	unable to lock semaphore
 04h	semaphore space exhausted
--------N-6701-------------------------------
INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE
	AH = 01h
	DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #2128)
	AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=02h"PC-NET",INT 7F/AH=01h"Alloy"
--------N-6702-------------------------------
INT 67 - PC-NET, Alloy NTNX - UNLOCK SEMAPHORE
	AH = 02h
	DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #2128)
	AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=01h"PC-NET",INT 7F/AH=02h
--------m-671E-------------------------------
INT 67 U - Qualitas 386MAX v7.00 - MEMLIMIT - INSTALLATION CHECK
	AH = 1Eh
Return: AH = 00h if installed
	    AL destroyed
	    ES:DI -> ASCII signature "MemLimit"
SeeAlso: AH=1Fh,INT 21/AX=4402h"386MAX"
--------m-671F-------------------------------
INT 67 U - Qualitas 386MAX v7.00 - MEMLIMIT - API
	AH = 1Fh
	DS:SI -> request packet (see #2129)
Return: AH = status (00h successful, 84h invalid function code, etc.)
SeeAlso: AH=1Eh

Format of 386MAX MEMLIMIT request packet:
Offset	Size	Description	(Table 2129)
 00h	WORD	function code (00h-0Fh)
 02h	WORD	return code (see #2130)
 04h  4 BYTEs	???
 08h	WORD	???
	???

(Table 2130)
Values for 386MAX MEMLIMIT return code:
 00h	unknown request
 01h	invalid parameter for VCPI limit
 02h	VCPI limit set
 03h	invalid parameter for EMS limit
 04h	EMS limit set
 05h	DPMI disabled
 06h	XMS disabled
 07h	XMS limit set
 08h	unable to uninstall
 09h	unloaded
--------m-673F--CX5145-----------------------
INT 67 U - QEMM-386 v4.23+ - INSTALLATION CHECK
	AH = 3Fh
	CX = 5145h ("QE")
	DX = 4D4Dh ("MM")
Return: AH = 00h if installed
	    ES:DI -> QEMM API entry point (see #2131,#2134,#2245)
Notes:	if no other program has hooked INT 67, an alternate installation
	  check is to test for the string
	  "QUARTERDECK EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
	  handler's segment; the word at offset 12h contains the offset in
	  the handler's segment of the API entry point
	although this function is still undocumented, Quarterdeck has recently
	  documented two alternate methods for determining the QEMM API entry
	  point, as well as several of the API functions
	MICEMM (Micronics Expanded Memory Manager) versions 2.0C and 4D support
	  the alternate QEMM installation check and entry point functions 00h,
	  02h, and 03h; version 4D only provides the signature string if the
	  commandline argument "DV" is provided
	386MAX v6.01 responds to this call, but DESQview 2.42 does not
	  recognize the returned entry point as providing QEMM's capabilities
	  because a) only functions 0Ch (different from QEMM 0Ch) and
			1000h-1009h are supported,
		  b) status is returned as for EMS functions, not QEMM funcs
		  c) the protected-mode entry point returned by function 1000h
			only supports functions 0Ch, 1004h, 1005h, and 100Ah
	the string check mentioned above is not supported by 386MAX
SeeAlso: AX=5BF0h,AH=DDh,AX=FFA5h,INT 15/AX=11DEh,INT 21/AX=4402h/SF=01h
SeeAlso: INT 21/AX=4402h"QEMM",INT 21/AX=4402h"386MAX",INT 2F/AX=D201h/BX=5145h

(Table 2131)
Values for calling QEMM "QPI_GetStatus" function:
	AH = 00h get QEMM state
Return: CF clear
	AL = QEMM state
	    bit 0 set if QEMM turned OFF
	    bit 1 set if in "Auto" mode
Note:	this function is officially documented
SeeAlso: #2132,#2133,#2134,#2245

(Table 2132)
Values for calling QEMM "QPI_SetStatus" function:
	AH = 01h set QEMM state
	AL = new state
	    bit 0 set: place QEMM in OFF state
Return: CF clear if successful
	CF set on error
Note:	this function is officially documented
SeeAlso: #2131

(Table 2133)
Values for calling QEMM QPI function 02h:
	AH = 02h get ???
Return: CF clear
	AX = segment of ??? data structure
	Data Structure
	Offset	Size	Description
	 00h	DWORD	page table entry for ???
		???
SeeAlso: #2134

(Table 2134)
Values for calling QEMM "QPI_GetVersion" function:
	AH = 03h get QEMM version
Return: CF clear
	AX = BX = version in BCD
Notes:	this function is officially documented.	 The most recent official docs
	  state that the version is returned in both AX and BX; older
	  documentation only mentions BX
	MICEMM returns AX=0001h, BX unchanged
SeeAlso: #2131,#2135

(Table 2135)
Values for calling QEMM QPI function 04h:
	AH = 04h allocate 4K page and set AUTO/ON mode
Return: CF clear if successful
	    DX = page number of a 4K page
	CF set if unable to allocate page
Note:	QEMM mode unchanged if not AUTO/OFF
SeeAlso: #2136

(Table 2136)
Values for calling QEMM QPI function 05h:
	AH = 05h free 4K page and turn QEMM off
	DX = page number returned by function 04h
Return: CF clear
Note:	QEMM mode unchanged if not AUTO/ON
SeeAlso: #2135,#2137

(Table 2137)
Values for calling QEMM QPI function 06h:
	AH = 06h make new mapping context???
	DX = page number of 4K page to hold page table
Return: CF clear
Note:	copies page table into given page and then sets ??? page table entry
	  to point at copy
SeeAlso: #2138,#2139

(Table 2138)
Values for calling QEMM QPI function 07h:
	AH = 07h get mapping context
Return: CF clear
	DX = page number of page table for current mapping context
SeeAlso: #2134,#2137,#2139

(Table 2139)
Values for calling QEMM QPI function 08h:
	AH = 08h set mapping context???
	DX = linear page number of page table
Return: CF clear
SeeAlso: #2134,#2137,#2138,#2140,#2142

(Table 2140)
Values for calling QEMM QPI function 09h:
	AH = 09h get linear page number for page table entry
	CX = page table index
Return: CF clear
	DX = linear page number
SeeAlso: #2141

(Table 2141)
Values for calling QEMM QPI function 0Ah:
	AH = 0Ah set linear page number for page table entry
	CX = page table index
	DX = linear page number
Return: CF clear
SeeAlso: #2140

(Table 2142)
Values for calling QEMM QPI function 0Bh:
	AH = 0Bh map 4K pages
	BX = number of pages
	CX = first page number (must be 0100h to allocate HMA)
	DX = EMS handle (memory belonging to EMS handle will be mapped
	      into the address space beginning with the first page
	      allocated to the handle)
Return: AH = 00h
SeeAlso: #2139,#2143

(Table 2143)
Values for calling QEMM QPI function 0Ch:
	AH = 0Ch get available memory
Return: CF clear
	BX = 0001h
	CX = total 4K pages???
	DX = number of 4K pages free
SeeAlso: #2142,#2144

(Table 2144)
Values for calling QEMM QPI function 0Dh:
	AH = 0Dh CRT controller I/O port trapping
	AL = mode
	    00h only trap on I/O ports 03C0h-03C5h, 03C7h, 03CAh-03CFh
	    01h trap on ports 03B4h, 03B5h, 03B8h, 03C6h, 03C8h, 03C9h,
		  03D4h, and 03D5h
	    02h only trap on I/O ports 03C6h, 03C8h, and 03C9h
Return: CF clear

(Table 2145)
Values for calling QEMM QPI function 0Eh:
	AH = 0Eh set cursor virtualization callbacks
	DS:BX -> FAR routine for getting hardware cursor address
	ES:DX -> FAR routine for setting hardware cursor address
Return: CF clear
Note:	both callbacks are invoked with CL indicating which
	  CRT controller register to access (0Eh for high
	  byte of cursor address, 0Fh for low byte)
	the DS:BX callback should return BX=cursor address;
	  ES:DX is called with BL or BH (depending on CL)
	  set to the appropriate half of the cursor's address

(Table 2146)
Values for calling QEMM QPI function 0Fh:
	AH = 0Fh unmap 4K pages
	CX = first page number
	DX = number of pages
Return: CF clear
	AL = 00h/01h if ???
Note:	if CX=0100h and DX=0010h, the HMA is remapped to
	  simulate a disabled A20

(Table 2147)
Values for calling QEMM QPI function 1000h:
	AX = 1000h get protected-mode interface
	DS:SI -> 16-byte buffer for two GDT entries
	ES:DI -> buffer for 4K page table
Return: CF clear
	EAX = offset of protected-mode API entry point
	DS:SI buffer filled with two GDT descriptors
		first is QEMM code segment, second is data???
	ES:DI buffer filled with 4K page table
	DI points to first unused page table entry
SeeAlso: INT 67/AX=DE01h

(Table 2148)
Values for calling QEMM QPI function 1001h:
	AX = 1001h get CPU debug registers
	ES:DI -> buffer for debug registers (8 DWORDs)
Return: CF clear
	BL = INT01 handling (see function 1002h)
	ES:DI buffer filled

(Table 2149)
Values for calling QEMM QPI function 1002h:
	AX = 1002h set CPU debug registers
	BL = INT01 handling
	    00h	 reflect all debugging exceptions as V86-mode INT 01's
	    else convert debugging exceptions other than single-step
		  into V86-mode INT 03's, single-step to INT 01's
	ES:DI -> buffer containing debug registers (8 DWORDs)
Return: CF clear
Notes:	identical to INT 67/AX=DE09h if BL=01h
	the INT01 handling flag is set to 01h by the general-protection
	  violation handler for certain privileged instructions

(Table 2150)
Values for calling QEMM QPI function 1003h:
	AX = 1003h get machine status word CR0
Return: CF clear
	EAX = contents of CR0
SeeAlso: INT 67/AX=DE07h

(Table 2151)
Values for calling QEMM QPI function 1004h:
	AX = 1004h allocate a 4K page
Return: CF clear if successful
	    EDX = linear address of allocated page
	CF set on error
SeeAlso: INT 67/AX=DE04h

(Table 2152)
Values for calling QEMM QPI function 1005h:
	AX = 1005h free 4K page
	EDX = linear address of page to free
Return: CF clear
SeeAlso: INT 67/AX=DE05h

(Table 2153)
Values for calling QEMM QPI function 1006h:
	AX = 1006h NOP
Return: CF set

(Table 2154)
Values for calling QEMM QPI function 1007h:
	AX = 1007h get maximum physical memory address
Return: CF clear
	EDX = physical address of highest 4K memory page
SeeAlso: INT 67/AX=DE02h

(Table 2155)
Values for calling QEMM QPI function 1008h:
	AX = 1008h get physical address of page in first megabyte
	CX = page number (linear address shifted right 12 bits)
Return: CF clear
	EDX = linear address of page
SeeAlso: function 1F00h

(Table 2156)
Values for calling QEMM QPI function 1009h:
	AX = 1009h switch to protected mode
	ESI = linear address in first megabyte of system reg values
	      (see INT 67/AX=DE0Ch)
	interrupts disabled
Return: interrupts disabled
	GDTR, IDTR, LDTR, TR loaded
	SS:ESP must have at least 16 bytes space, and the
	      entry point is required to set up a new stack
	      before enabling interrupts
	EAX, ESI, DS, ES, FS, GS destroyed

(Table 2157)
Values for calling QEMM QPI function 100Ah:
	AX = 100Ah switch back to virtual-86 mode
	DS = selector for data segment from function 1000h
	SS:ESP in first megabyte of linear memory
	interrupts disabled
	STACK:	QWORD  return address from FAR call to 32-bit segment
		DWORD  EIP
		DWORD  CS
		DWORD  reserved for EFLAGS
		DWORD  ESP
		DWORD  SS
		DWORD  ES
		DWORD  DS
		DWORD  FS
		DWORD  GS
	will switch to virtual86 mode with interrupts disabled, all
	  segment registers loaded, and EAX destroyed.

(Table 2158)
Values for calling QEMM QPI function 11h:
	AH = 11h get memory type map
	AL = zero/nonzero ??? (set by QEMM.COM but apparently ignored
	      by QEMM 6.00)
	ES:DI -> 256-byte buffer for memory types
Return: CF clear
	BL = ???
	ES:DI buffer filled
Note:	each byte of the buffer corresponds to a 4K page, and
	  contains the type of that page: 00h = mappable,
	  02h = mapped ROM, 03h = high RAM, 04h = excluded,
	  05h = video, 06h = ROM, 07h = adapter ROM,
	  08h = split ROM, 09h = page frame, 0Ah = RAMmable,
	  0Bh = conventional, 83h = high RAM under MS Windows

(Table 2159)
Values for calling QEMM QPI function 12h:
	AH = 12h get HIRAM chain
Return: CF clear
	BX = segment of first MCB in high memory
	    0000h if no high memory

(Table 2160)
Values for calling QEMM QPI function 1300h:
	AX = 1300h VIDRAMEGA???
	BL = 00h copy ???
	     nonzero copy ??? (reverse)
Return: CF clear
	AL = status
	    00h if all pages clean
	    01h if any page dirty

(Table 2161)
Values for calling QEMM QPI function 1301h:
	AX = 1301h check if pages modified
	DX:DI = start address of range to check
	CX = length of range in paragraphs
Return: CF clear
	CX = status
	    0000h none of the indicated pages is dirty
		DI destroyed
		 1000h one or more pages is dirty
		DI = low word of first dirty page's linear addr

(Table 2162)
Values for calling QEMM QPI function 1302h:
	AX = 1302h ???
	BL = ???
	BH = ???
	CX = ???
	SI = offset of ???
	DI = offset of ???
	???
Return: CF clear
	???
Note:	disables certain interrupts at the two 8259 PICs during
	  execution; also modifies CRT controller during
	  execution under certain circumstances

(Table 2163)
Values for calling QEMM QPI function 1303h:
	AX = 1303h initialize EGA graphics virtualization
	BX = number of pages (less 1) of EMS to allocate
Return: CF clear if successful
		 DX = EMS handle
	CF set on error

(Table 2164)
Values for calling QEMM QPI function 1304h:
	AX = 1304h shutdown EGA graphics virtualization
	DX = EMS handle being used for virtualization
Return: CF clear

(Table 2165)
Values for calling QEMM QPI function 1305h:
	AX = 1305h select portion of EGA graphics to virtualize???
	(related to graphics virtualization, changes memory mappings)
	CX = start offset within A000h segment of virtualized mem???
Return: CF clear
Note:	disables certain interrupts at the two 8259 PICs during
	  execution (see func 130Ch) and runs inside a QEMM
	  critical section

(Table 2166)
Values for calling QEMM QPI function 1306h:
	AX = 1306h set DESQview critical section counter address
	ES:BX -> WORD DESQview critical section counter or 0000h:0000h
Return: CF clear
Note:	also sets a pointer in the low-memory part of QEMM to
	  the current value of INT 15 if ES:BX not 0000h:0000h

(Table 2167)
Values for calling QEMM QPI function 1307h:
	AX = 1307h ??? (changes memory mappings for entire A000h segment)
Return: CF clear
Note:	disables certain interrupts at the two 8259 PICs during
	  execution (see func 130Ch) and runs inside a QEMM
	  critical section

(Table 2168)
Values for calling QEMM QPI function 1308h:
	AX = 1308h start/reset CRT controller I/O trapping
	BL = subfunction
	    00h restore CRTC I/O port trapping to previous state
	    else start trapping all accesses to I/O ports 03B0-03DF
Return: CF clear
Note:	if called more than once in a row with BL nonzero, the
	  original state of the I/O port trapping will be lost

(Table 2169)
Values for calling QEMM QPI function 1309h:
	AX = 1309h Hercules mode-change support
	ES:BX -> new address for Hercules mode-change callback
Return: CF clear
Note:	the callback function is called whenever the CRTC mode
	  register is written, with AL set to the value written

(Table 2170)
Values for calling QEMM QPI function 130Ah:
	AX = 130Ah virtualize EGA/VGA DAC registers (I/O ports 03C8h/03C9h)
	CX:DX -> DAC register virtualization buffer (see #2252)
		or 0000h:0000h to disable
Return: CF clear

(Table 2171)
Values for calling QEMM QPI function 130Bh:
	AX = 130Bh ???
	BL = ??? (??? or 00h)
Return: CF clear
	???
Note:	calls AX=130Eh in some cases

(Table 2172)
Values for calling QEMM QPI function 130Ch:
	AX = 130Ch set interrupts to mask
	BX = interrupts to mask out during AX=1302h,AX=1307h,AX=1308h,
	      AX=130Dh,AX=1310h (BL = master PIC, BH = slave PIC)
Return: CF clear

(Table 2173)
Values for calling QEMM QPI function 130Dh:
	AX = 130Dh map EGA memory at A0000h
	???
Return: CF clear
Note:	disables certain interrupts at the two 8259 PICs during execution
	  (see #2172) and runs inside a QEMM critical section
	calls AX=1307h (see #2167)

(Table 2174)
Values for calling QEMM QPI function 130Eh:
	AX = 130Eh ??? (modifies CRT controller setup)
	???
Return: CF clear

(Table 2175)
Values for calling QEMM QPI function 130Fh:
	AX = 130Fh reset ???
Return: CF clear

(Table 2176)
Values for calling QEMM QPI function 1310h:
	AX = 1310h copy modified pages to physical video RAM???
	???
Return: CF clear
Note:	disables certain interrupts at the two 8259 PICs during execution
	  (see #2172) and runs inside a QEMM critical section
	also calls AX=130Dh (see #2173)

(Table 2177)
Values for calling QEMM QPI function 1311h:
	AX = 1311h set ???
	BL = zero/nonzero???
Return: CF clear
Note:	certain operations will be performed with interrupts
	  (as set by AX=130Ch) enabled rather than disabled if
	  called with BL nonzero

(Table 2178)
Values for calling QEMM QPI function 1312h:
	AX = 1312h (v6.02) NOP???
Note:	called by DV 2.42, but appears to be a NOP in QEMM 6.02

(Table 2179)
Values for calling QEMM QPI function 1400h:
	AX = 1400h initialize DESQview "protection level" support
	ES:DI -> protection level configuration (at least 24 bytes)
		(see #2246)
	BL = highest ??? to return (one less than number of words)
Return: CF clear
	AX = ??? (4204h for v6.00)
Note:	QEMM also sets the protected mode INT 02 and INT 06
	  vectors to alternate handlers in certain cases

(Table 2180)
Values for calling QEMM QPI function 1401h:
	AX = 1401h turn off DESQview protection level support
		Return: CF clear
			???
		Notes:	clears the DV critical-section flag address set with
			  function 1306h
			QEMM also sets the protected mode INT 02 and INT 06
			  vectors to the default handlers if they had been
			  revectored by function 1400h

(Table 2181)
Values for calling QEMM QPI function 1402h:
	AX = 1402h set protection level???
		BL = protection level???
		    00h NOP
		    01h ???
		    02h ???
		    other (03h) ???
		ES:DI -> ???
		Return: CF clear
			???
		Format of Data structure:
		Offset	Size	Description
		 00h	WORD	segment of ??? (X, word at X:0136h set to X)
		 02h	WORD	segment of ??? (word at X:0124h set to this)
		 04h	WORD	number of paragraphs of ???
		 06h  3 WORDs	??? (copied to X:0000h)
		 0Ch	WORD	???

(Table 2182)
Values for calling QEMM QPI function 1403h:
	AX = 1403h add ??? to end of list and ??? (execute func 1406h)
		ES:DI -> ??? structure added to end of ??? list
			(at least 31 bytes, DWORD at offset 06h used for
			 storing pointer to next struc, WORD at offset 00h
			 seems to be a key or index)
		Return: CF clear

(Table 2183)
Values for calling QEMM QPI function 1404h:
	AX = 1404h NOP
		Return: CF clear

(Table 2184)
Values for calling QEMM QPI function 1405h:
	AX = 1405h remove ??? from ??? list
		BX = key???
		Return: CF clear

(Table 2185)
Values for calling QEMM QPI function 1406h:
	AX = 1406h ???
		???
		Return: CF clear
			???
		Notes:	this function is a NOP unless protection level 2 or 3
			  is active
			when not a NOP, one of the actions is to write-protect
			  certain memory pages

(Table 2186)
Values for calling QEMM QPI function 1407h:
	AX = 1407h ???
		???
		Return: CF clear
			???
		Note:	same as function 1406h, but only does anything if
			  protection level 2 is active

(Table 2187)
Values for calling QEMM QPI function 1408h:
	AX = 1408h unprotect???
		???
		Return: CF clear
			???

(Table 2188)
Values for calling QEMM QPI function 1409h:
	AX = 1409h abort program causing protection violation???
		???
		Return: CF clear
			???

(Table 2189)
Values for calling QEMM QPI function 140Ah:
	AX = 140Ah set ???
		BX = index of ???
		Return: CF clear
			???
		Notes:	no range checking is performed on BX
			this function is a NOP unless protection level 3 active

(Table 2190)
Values for calling QEMM QPI function 140Bh:
	AX = 140Bh get ???
		BX = index of ???
		SI = 0000h
		Return: CF clear
			SI = segment of 256-byte buffer??? or 0000h
		Notes:	no range checking is performed on BX
			this function is a NOP unless protection level 3 active

(Table 2191)
Values for calling QEMM QPI function 15h:
	AH = 15h set timer channel 0 virtualization buffer
		ES:BX -> WORD buffer for timer channel 0 divisor
			0000h:0000h to disable virtualization
		Return: CF clear

(Table 2192)
Values for calling QEMM v5.00+ QPI function 1600h:
	AX = 1600h get memory access status
		ES:DI -> 256-byte buffer
		Return: ES:DI buffer filled
		Note:	each byte of the buffer indicates the status of a 4K
			  page (bit 0 set if read, bit 1 set if written)

(Table 2193)
Values for calling QEMM v5.00+ QPI function 1601h:
	AX = 1601h set memory access status
		ES:DI -> 256-byte buffer containing access statuses (see #2192)

(Table 2194)
Values for calling QEMM v5.00+ QPI function 17h:
	AH = 17h get memory usage statistics
		ES:DI -> 81-byte buffer for memory statistics (see #2250)
		Return: CF clear

(Table 2195)
Values for calling QEMM v5.11+ QPI function 18h:
	AH = 18h check whether conventional memory mapped into address range
		ES:BX = starting address
		CX = number of 4K pages
		Return: CF clear
			AL = 00h one or more pages is remapped
			     01h all pages in range are conventional memory
				(physical address == virtual address)

(Table 2196)
Values for calling QEMM v5.11+ QPI function 19h:
	AH = 19h NOP
		Return: CF set

(Table 2197)
Values for calling QEMM v5.11+ "QPI_UntrappedIORead" function:
	AX = 1A00h get byte from I/O port
	DX = port number
Return: CF clear
	BL = port value
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2198)
Values for calling QEMM v5.11+ "QPI_UntrappedIOWrite" function:
	AX = 1A01h send byte to I/O port
	BL = value to send
	DX = port number
Return: CF clear
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2199)
Values for calling QEMM v5.11+ "QPI_UntrappedIOReadIndexed" function:
	AX = 1A02h
	BH = index value to send
	DX = base port number
Return: CF clear
	BL = value read from I/O port (DX+1)
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2200)
Values for calling QEMM v5.11+ "QPI_UntrappedIOWriteIndexed" function:
	AX = 1A03h send bytes to two consecutive I/O ports
	BH = value for first I/O port (DX)
	BL = value for second I/O port (DX+1)
	DX = base port number
Return: CF clear
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2201)
Values for calling QEMM v7.03+ "QPI_UntrappedIO" function:
	AX = 1A04h
	BX = value to write to port
	CX = direction and size
	    bit 2: output instead of input
	    bit 3: word instead of byte
	DX = I/O port to be accessed
Return: CF clear
	BX = value read (if CX indicates read)
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2202)
Values for calling QEMM v7.03+ function 1A05h
	AX = 1A05h
	???
Return: ???

(Table 2203)
Values for calling QEMM v7.03+ "QPI_GetIOCallback" function:
	AX = 1A06h
Return: CF clear
	ES:DI -> current I/O callback function
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2204)
Values for calling QEMM v7.03+ "QPI_SetIOCallback" function:
	AX = 1A07h
	ES:DI -> new I/O callback function
Return: CF clear
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2205)
Values for calling QEMM v7.03+ "QPI_GetPortTrap" function:
	AX = 1A08h
	DX = I/O port number
Return: CF clear
	BL = trapping state (00h not being trapped, 01h trap installed)
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2206)
Values for calling QEMM v7.03+ "QPI_SetPortTrap" function:
	AX = 1A09h
	DX = I/O port number
Return: CF clear
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2207)
Values for calling QEMM v7.03+ "QPI_ClearPortTrap" function:
	AX = 1A0Ah
	DX = I/O port number
Return: CF clear
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2208)
Values for calling QEMM v5.11+ QPI function 1B00h:
	AX = 1B00h get EMM Import Structure address
	ES:DI -> buffer for EMM import data structure (see #2248)
Return: CF set on error
	CF clear if successful
SeeAlso: INT 21/AX=4402h/SF=01h

(Table 2209)
Values for calling QEMM v5.11+ QPI function 1B01h:
	AX = 1B01h disable V86 mode
Return: CF set on error
	    (i.e. no Global EMM Import rec. allocated)
	CF clear if successful
Note:	shuts down EMS and initializes Global EMM Import record; this function
	  is invoked from the callback supplied by INT 2F/AX=1605h

(Table 2210)
Values for calling QEMM v5.11+ QPI function 1B02h:
	AX = 1B02h enable V86 mode
Return: CF set on error
	CF clear if successful
Note:	restarts EMS and frees Global EMM Import record; this function is
	  invoked from the callback supplied by INT 2F/AX=1605h

(Table 2211)
Values for calling QEMM v5.11+ QPI function 1B03h:
	AX = 1B03h MS Windows initializing
	CX = segment from which Windows init broadcast made???
	DX = Windows startup flags
	DI = Windows version number (major in upper byte)
Return: CF clear if successful
	    DS:SI -> V86 mode enable/disable callback
		  (see #1413 at INT 2F/AX=1605h)
	    ES:BX -> startup info structure (see #1410 at INT 2F/AX=1605h)
	CF set on error (unable to start Windows)
SeeAlso: INT 2F/AX=1605h

(Table 2212)
Values for calling QEMM v5.11+ QPI function 1B04h:
	AX = 1B04h MS Windows terminating
Return: CF clear

(Table 2213)
Values for calling QEMM v5.11+ QPI function 1B05h:
	AX = 1B05h determine whether program is driver
	DS:DX -> ASCIZ filename
Return: CF clear
	AL = status
	    01h if string ends in ".DRV"
	    FFh if string ends in "GDI.EXE"
	    00h otherwise
Note:	when MS Windows 3.0 standard mode starts, QEMM patches all drivers
	  until GDI.EXE is loaded

(Table 2214)
Values for calling QEMM v5.11+ QPI function 1B06h:
	AX = 1B06h patch protected-mode check in Windows driver
	CX = length of data pointed at by DS:DX
	DS:DX -> buffer containing Windows driver code
Return: CF clear
Note:	patches all SMSW x/TEST x,1 instruction sequences into MOV x,CS/VERW x
	  sequences, which has the effect that the protected-mode check will
	  only indicate protected mode in native protected mode and not in V86
	  mode

(Table 2215)
Values for calling QEMM v5.11+ QPI function 1B07h:
	AX = 1B07h
BUG: QEMM 6.00-7.01 accept this and branch randomly

(Table 2216)
Values for calling QEMM v5.11+ QPI function 1Bxxh:
	AX = 1B08h to 1BFFh
Return: CF set

(Table 2217)
Values for calling QEMM v5.11+ QPI function 1C00h:
	AX = 1C00h disable IRQ0-7 calldowns
Return: CF clear

(Table 2218)
Values for calling QEMM v5.11+ QPI function 1C01h:
	AX = 1C01h set V86-mode IRQ0-7 handlers
	ES:DI -> 8 DWORDs containing V86-mode handler addresses
Return: CF clear

(Table 2219)
Values for calling QEMM v5.11+ QPI function 1C02h:
	AX = 1C02h disable IRQ8-15 handlers
Return: CF clear

(Table 2220)
Values for calling QEMM v5.11+ QPI function 1C03h:
	AX = 1C03h set V86-mode IRQ8-15 handlers
	ES:DI -> 8 DWORDs containing V86-mode handler addresses
BUG:	although the jump table only contains four entries, QEMM 6.00 will
	  attempt to use it for any value of AL between 00h and 2Ah, thus
	  branching unpredictably for AL=04h-2Ah; QEMM v7.01 behaves
	  similarly for AL=04h-1Bh
Note:	when enabled, the appropriate IRQs are reflected back to the specified
	  handlers in virtual-86 mode after the CPU automatically invokes the
	  protected-mode handler inside QEMM

(Table 2221)
Values for calling QEMM v7.03+ "QPI_SimulateHWInt" function:
	AX = 1C04h
	BX = number of interrupt to simulate
Return: ???
Notes:	this function will allow proper simulation of a hardware interrupt
	  under DESQview and DESQview/X, where the correct interrupt handler
	  may be in a different process with a completely different address
	  space
	this function was officially documented with the release of QEMM v7.50

(Table 2222)
Values for calling QEMM v6.0x only QPI function 1D00h:
	AX = 1D00h switch to pre-Stealth interrupt vector table
Return: CF clear if supported (QEMM v6.x)
	CF set if not supported (QEMM v7+)
Notes:	also switches VGA Save table pointer (0040h:00A8h) and overwrites the
	  vectors currently assigned for use by the two interrupt controllers
	  (see INT 67/AX=DE0Ah) with the vectors for INT 08-0F and 70-77 (to
	  avoid crashing the system).
	functions 1Dxxh are not supported by QEMM v7.01, and always return CF
	  set

(Table 2223)
Values for calling QEMM v6.0x only QPI function 1D01h:
	AX = 1D01h restore user interrupt vector table
Return: CF clear if supported (QEMM v6.x)
	CF set if not supported (QEMM v7+)
Notes:	interrupts should be disabled around the AX=1D00h and AX=1D01h calls
	  because QEMM does not modify the memory maps to map in ROM, so
	  an interrupt could be disastrous
	clears any pending IRQ7 at end of function
	functions 1Dxxh are not supported by QEMM v7.01, and always return CF
	  set

(Table 2224)
Values for calling QEMM v6.00+ QPI function 1Dxxh:
	AX = 1D02h to 1DFFh
Return: CF set

(Table 2225)
Values for calling QEMM v6.00+ "QEMM_GET_INFO"/"QPI_GetInfo" function:
	AX = 1E00h get Stealth configuration
Return:	CF clear
	BL = memory configuration flags (documented as "reserved") (see #2249)
	BH = (v7.00+) disk buffer flags
	    bit 0: DISKBUFFRAME buffer instead of DISKBUF buffer
	    bit 1: buffer has already been used
	CL = stealth type (00h none, 46h Frame, 4Dh Map, 50h Protect)
	CH = suspend/resume interrupt (00h none)
	DL = (v7.00+) size of QEMM disk buffer in KB (00h none)
	DH = reserved (always 00h for v6.00)
	SI = reserved (always 0000h for v6.00)
	DI = reserved (always 0000h for v6.00)
Note:	this function is officially documented

(Table 2226)
Values for calling QEMM v6.00+ "QPI_GetStealthCount" function:
	AX = 1E01h get number of Stealth'ed ROMs
Return: CF clear
	BX = number of Stealth'ed ROMs
Note:	this function is officially documented

(Table 2227)
Values for calling QEMM v6.00+ "QPI_GetStealthList" function:
	AX = 1E02h
	ES:DI -> buffer for Stealth ROM info (see #2251)
Return: CF clear
	BX = number of Stealth'ed ROMs
	ES:DI buffer filled
Note:	this function is officially documented

(Table 2228)
Values for unimplemented Stealth information functions:
	AX = 1E03h to 1EFFh
Return: CF set


(Table 2229)
Values for calling QEMM v6.00+ "QEMM_GET_PTE"/"QPI_GetPTE" function:
	AX = 1F00h get page table entry
	CX = page number (0000h-010Fh)
Return:	CF clear
	EDX = page table entry
Note:	this function is officially documented

(Table 2230)
Values for calling QEMM v6.00+ "QEMM_SET_PTE"/"QPI_SetPTE" function:
	AX = 1F01h set page table entry
	CX = page number (0000h-010Fh)
	EDX = new page table entry
Return: CF clear
Note:	this function is officially documented
SeeAlso: function 1008h

(Table 2231)
Values for calling QEMM v6.00+ QPI function 1Fxxh:
	AX = 1F02h to 1FFFh
Return: CF set

(Table 2232)
Values for calling QEMM v6.00+ "QEMM_GET_VHI_INFO"/"QPI_GetVHIInfo" function:
	AX = 2000h "QEMM_GET_VHI_INFO" get VirtualHDIRQ information
Return: CF clear
	BL = flags
	    bit 7: VirtualHDIRQ setting respected
		  (set if Stealth active)
	    bits 6-1 reserved
	    bit 0: VirtualHDIRQ currently enabled
		(INT 15/AH=90h suppressed when enabled)
Note:	this function is officially documented
SeeAlso: #2233

(Table 2233)
Values for calling QEMM v6.00+ "QEMM_SET_VHI_INFO"/"QPI_SetVHIInfo" function:
	AX = 2001h set VirtualHDIRQ state
	BL bit 0 = new VirtualHDIRQ state
Return: CF clear
	BL = old VHI setting (bits 0 and 7, see #2232)
Note:	this function is officially documented
SeeAlso: #2232

(Table 2234)
Values for calling QEMM v6.00+ QPI function 20xxh:
	AX = 2002h to 20FFh
Return: CF set

(Table 2235)
Values for calling QEMM v6.00+ "QEMM_COPY_STEALTH_ROMS"/"QPI_CopyStealthRoms":
	AX = 2100h copy data from Stealthed address space
	DS:SI -> start address of hidden memory to copy
	ES:DI -> buffer for copied data
	ECX = number of bytes to copy
Return: CF clear if successful
	CF set on error (no Stealth or DS:SI < c000h:0000h="" or="" ds:si="" +="" ecx=""> 1M)
Note:	this function was officially documented with the release of QEMM 7.50

(Table 2236)
Values for calling QEMM v6.00+ QPI function 21xxh:
	AX = 2101h to 21FFh
Return: CF set

(Table 2237)
Values for calling QEMM v6.03+ QPI function 2200h:
	AX = 2200h DESQview/X support -- get ???
Return: CF clear
	ES:DI -> ???

(Table 2238)
Values for calling QEMM v6.03+ QPI function 2201h:
	AX = 2201h DESQview/X support -- set ???
	ES:DI -> ??? or 0000h:0000h
Return: CF clear if successful
	CF set on error

(Table 2239)
Values for calling QEMM v6.04+ QPI function 2300h:
	AX = 2300h get ???
	BX = which ??? to get (must be 0000h for v6.04)
Return: CF clear if successful
	    ES:DI -> ???
	CF set on error

(Table 2240)
Values for calling QEMM v6.04+ QPI function 2301h:
	AX = 2301h set ???
	BX = which ??? to set (must be 0000h for v6.04)
	ES:DI -> ???
Return: CF clear if successful
	CF set on error

(Table 2241)
Values for calling QEMM v6.04+ QPI function 2302h:
	AX = 2302h clear specified ???
	BX = which ??? to clear (must be 0000h for v6.04)
Return: CF clear if successful
	CF set on error

(Table 2242)
Values for calling QEMM v6.04+ QPI function 23FFh:
	AX = 23FFh clear all ???
Return: CF clear if successful
	CF set on error

(Table 2243)
Values for calling QEMM v6.04+ QPI function 23xxh:
	AX = 2303h to 23FEh
Return: CF set

(Table 2244)
Values for calling QEMM v7.01+ QPI function 24h:
	AH = 24h ST-DBL support
	AL = subfunction
	    00h set ???
		EDX -> information table (EDX = segment SHL 16 + offset)
	    01h ???
Return: CF clear if successful
	CF set on error

(Table 2245)
Values for calling QEMM unimplemented QPI functions:
	AH = 25h to FFh
Return: CF set

Format of QEMM protection level configuration:
Offset	Size	Description	(Table 2246)
 00h	WORD	segment of 128 breakpoint (INT 3) instructions for use in
		  DESQview protection level 3 interrupt vector checking, or
		  0000h to disable; in pl3, INTs 00-7F are pointed at these
		  breakpoints
 02h	DWORD	-> array of actual interrupt handler addresses for INT 00-7F
		  when interrupt vectors are pointed at protection level 3
		  breakpoints
 06h	DWORD	far pointer to ??? region list (see #2247)
 0Ah	DWORD	far pointer to buffer for returned ???
 0Eh	DWORD	seg:ofs of function to call on protection violation???
 12h	WORD	segment of ???
 14h	DWORD	far pointer to DWORD containing number of paragraphs of
		  ??? for segment at offset 12h
	???

Format of protection level Region List:
Offset	Size	Description	(Table 2247)
 00h	WORD	number of PAIRS of pointers to follow
 02h 2N DWORDs	start/end seg:ofs addresses of ??? regions
Note:	QEMM converts the segmented addresses into linear addresses in place

Format of EMM Import structure:
Offset	Size	Description	(Table 2248)
 00h	DWORD	physical address of EMM import struct
 04h	BYTE	major version (v6.00 sets to 01h)
 05h	BYTE	minor version (v6.00 sets to 00h/0Bh)
SeeAlso: INT 21/AX=4402h/SF=01h

Bitfields for memory configuration flags:
Bit(s)	Description	(Table 2249)
 0	conventional memory sorted
 1	conventional memory filled
 2	???
 3	???
 4	expanded memory is in use
 5	???

Format of QEMM 6.0 memory statistics:
Offset	Size	Description	(Table 2250)
 00h	BYTE	01h if Shadow RAM found, 00h otherwise
 01h	DWORD	initial conventional memory in bytes
 05h	DWORD	initial extended memory in bytes
 09h	DWORD	initial expanded memory in bytes
 0Dh	DWORD	initial "top" or "shadow" memory in bytes
 11h	DWORD	Unavailable conventional memory in bytes
 15h	DWORD	Unavailable extended memory in bytes
 19h	DWORD	Unavailable expanded memory in bytes
 1Dh	DWORD	Unavailable "top" or "shadow" memory in bytes
		Add to offset 49h for Total unavailable top/shadow.
 21h	DWORD	QEMM code size in bytes
 25h	DWORD	QEMM data size in bytes
 29h	DWORD	bytes used for TASKS=
 2Dh	DWORD	DMA buffer size
 31h	DWORD	bytes used for MAPS=
 35h	DWORD	bytes of high RAM
 39h	DWORD	bytes used by mapped ROMs
 3Dh	DWORD	bytes of conventional memory provided by QEMM
 41h	DWORD	bytes of extended memory NOT converted by QEMM (EXT=xxx)
 45h	DWORD	bytes of EMS/XMS pool memory provided by QEMM
 49h	DWORD	Unavailable "top" or "shadow" memory in bytes
		Add to offset 1Dh for Total unavailable top/shadow.
 4Dh	DWORD	conventional memory overhead in bytes
		(set to 0 by QEMM.COM prior to call)

Format of Stealth ROM info [array]:
Offset	Size	Description	(Table 2251)
 00h	WORD	starting segment of ROM
 02h	WORD	length of ROM in paragraphs

Format of QEMM EGA/VGA DAC register virtualization buffer:
Offset	Size	Description	(Table 2252)
 00h	BYTE	(temp) current color register number
 01h	BYTE	(temp) number of bytes written so far for current color reg
 02h 768 BYTEs	three bytes per color register
--------m-6740-------------------------------
INT 67 - LIM EMS - GET MANAGER STATUS
	AH = 40h
Return: AH = status (00h,80h,81h,84h) (see #2253)
Note:	this call can be used only after establishing that the EMS driver is in
	  fact present
SeeAlso: AH=3Fh,AX=FFA5h

(Table 2253)
Values for EMS function status:
 00h	successful
 80h	internal error
 81h	hardware malfunction
 83h	invalid handle
 84h	undefined function requested by application
 85h	no more handles available
 86h	error in save or restore of mapping context
 87h	insufficient memory pages in system
 88h	insufficient memory pages available
 89h	zero pages requested
 8Ah	invalid logical page number encountered
 8Bh	invalid physical page number encountered
 8Ch	page-mapping hardware state save area is full
 8Dh	save of mapping context failed
 8Eh	restore of mapping context failed
 8Fh	undefined subfunction
 90h	undefined attribute type
 91h	feature not supported
 92h	successful, but a portion of the source region has been overwritten
 93h	length of source or destination region exceeds length of region
	  allocated to either source or destination handle
 94h	conventional and expanded memory regions overlap
 95h	offset within logical page exceeds size of logical page
 96h	region length exceeds 1M
 97h	source and destination EMS regions have same handle and overlap
 98h	memory source or destination type undefined
 9Ah	specified alternate map register or DMA register set not supported
 9Bh	all alternate map register or DMA register sets currently allocated
 9Ch	alternate map register or DMA register sets not supported
 9Dh	undefined or unallocated alternate map register or DMA register set
 9Eh	dedicated DMA channels not supported
 9Fh	specified dedicated DMA channel not supported
 A0h	no such handle name
 A1h	a handle found had no name, or duplicate handle name
 A2h	attempted to wrap around 1M conventional address space
 A3h	source array corrupted
 A4h	operating system denied access
--------m-6741-------------------------------
INT 67 - LIM EMS - GET PAGE FRAME SEGMENT
	AH = 41h
Return: AH = status (see also AH=40h)
	    00h function successful
		BX = segment of page frame
SeeAlso: AH=58h,AH=68h
--------m-6742-------------------------------
INT 67 - LIM EMS - GET NUMBER OF PAGES
	AH = 42h
Return: AH = status (see also AH=40h)
	    00h function successful
		BX = number of unallocated pages
		DX = total number of pages
BUG:	DOS 6.0 EMM386.EXE causes a system lock-up or reboot if in AUTO mode
	  when this call is made; use AH=46h to ensure that EMM386 is ON
	  before making this call
SeeAlso: INT 2F/AX=2702h
--------m-6743-------------------------------
INT 67 - LIM EMS - GET HANDLE AND ALLOCATE MEMORY
	AH = 43h
	BX = number of logical pages to allocate
Return: AH = status (00h,80h,81h,84h,85h,87h,88h,89h) (see #2253)
	DX = handle if AH=00h
SeeAlso: AH=45h
--------m-6744-------------------------------
INT 67 - LIM EMS - MAP MEMORY
	AH = 44h
	AL = physical page number (0-3)
	BX = logical page number
	    or FFFFh to unmap (QEMM)
	DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Ah,8Bh) (see #2253)
SeeAlso: AH=69h
--------m-6745-------------------------------
INT 67 - LIM EMS - RELEASE HANDLE AND MEMORY
	AH = 45h
	DX = EMM handle
Return: AH = status (00h,80h,81h,83h,84h,86h) (see #2253)
SeeAlso: AH=43h
--------m-6746-------------------------------
INT 67 - LIM EMS - GET EMM VERSION
	AH = 46h
Return: AH = status (00h,80h,81h,84h) (see #2253)
	AL = EMM version number if AH=00h
--------m-6747-------------------------------
INT 67 - LIM EMS - SAVE MAPPING CONTEXT
	AH = 47h
	DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Ch-8Eh) (see #2253)
SeeAlso: AH=48h
--------m-6748-------------------------------
INT 67 - LIM EMS - RESTORE MAPPING CONTEXT
	AH = 48h
	DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Eh) (see #2253)
SeeAlso: AH=47h
--------m-6749-------------------------------
INT 67 - LIM EMS - reserved - GET I/O PORT ADDRESSES
	AH = 49h
Note:	defined in EMS 3.0, but undocumented in EMS 3.2
--------m-674A-------------------------------
INT 67 - LIM EMS - reserved - GET TRANSLATION ARRAY
	AH = 4Ah
Note:	defined in EMS 3.0, but undocumented in EMS 3.2
--------m-674B-------------------------------
INT 67 - LIM EMS - GET NUMBER OF EMM HANDLES
	AH = 4Bh
Return: AH = status (00h,80h,81h,83h,84h) (see #2253)
	BX = number of EMM handles if AH=00h
--------m-674C-------------------------------
INT 67 - LIM EMS - GET PAGES OWNED BY HANDLE
	AH = 4Ch
	DX = EMM handle
Return: AH = status (see #1504)
	BX = number of logical pages if AH=00h
SeeAlso: AH=4Dh
--------m-674D-------------------------------
INT 67 - LIM EMS - GET PAGES FOR ALL HANDLES
	AH = 4Dh
	ES:DI -> array to receive information
Return: AH = status (00h,80h,81h,84h) (see #2253)
	---if AH=00h---
	BX = number of active EMM handles
	array filled with 2-word entries, consisting of a handle and the
	  number of pages allocated to that handle
SeeAlso: AH=4Ch
--------m-674E-------------------------------
INT 67 - LIM EMS - GET OR SET PAGE MAP
	AH = 4Eh
	AL = subfunction
	    00h get mapping registers
	    01h set mapping registers
	    02h get and set mapping registers at once
	    03h get size of page-mapping array
	DS:SI -> array holding information (AL=01h/02h)
	ES:DI -> array to receive information (AL=00h/02h)
Return: AH = status (00h,80h,81h,84h,8Fh,A3h) (see also AH=40h)
	    00h successful
		AL = bytes in page-mapping array (AL=03h only)
		array pointed to by ES:DI receives mapping info (AL=00h/02h)
Notes:	this function was designed to be used by multitasking operating systems
	  and should not ordinarily be used by appplication software.
	MD386 returns the size of the page-mapping array in AX instead of AL
SeeAlso: AH=4Fh
--------m-674F-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET PARTIAL PAGE MAP
	AH = 4Fh
	AL = subfunction
	    00h get partial page map
	       DS:SI -> structure containing list of segments whose mapping
			contexts are to be saved
	       ES:DI -> array to receive page map
	    01h set partial page map
	       DS:SI -> structure containing saved partial page map
	    02h get size of partial page map
	       BX = number of mappable segments in the partial map to be saved
Return: AH = status (00h,80h,81h,84h,8Bh,8Fh,A3h) (see also AH=40h)
	    8Bh one of the specified segments is not mappable
	    A3h contents of partial page map corrupted or count of mappable
		segments exceeds total number of mappable segments in system
	AL = size of partial page map for subfunction 02h
SeeAlso: AH=4Eh
--------m-6750-------------------------------
INT 67 - LIM EMS 4.0 - MAP/UNMAP MULTIPLE HANDLE PAGES
	AH = 50h
	AL = subfunction
	    00h use physical page numbers
		 01h use segment addresses
	DX = handle
	CX = number of entries in array
	DS:SI -> mapping array (see #2254)
Return: AH = status (00h,80h,81h,83h,84h,8Ah,8Bh,8Fh) (see #2253)
SeeAlso: AH=40h

Format of EMS mapping array entry:
Offset	Size	Description	(Table 2254)
 00h	WORD	logical page number or FFFFh to unmap physical page
 02h	WORD	physical page number or segment address
--------m-6751-------------------------------
INT 67 - LIM EMS 4.0 - REALLOCATE PAGES
	AH = 51h
	DX = handle
	BX = number of pages to be allocated to handle
Return:	AH = status (00h,80h,81h,83h,84h,87h,88h) (see #2255)
	BX = actual number of pages allocated to handle

(Table 2255)
Values for EMS function status:
 00h	successful
 80h	internal error
 81h	hardware malfunction
 83h	invalid handle
 84h	undefined function requested
 87h	more pages requested than present in system
 88h	more pages requested than currently available
 8Ah	invalid logical page number encountered
 8Bh	invalid physical page number encountered
 8Fh	undefined subfunction
 90h	undefined attribute type
 91h	feature not supported
 A0h	no such handle name
 A1h	duplicate handle name
--------m-6752-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET HANDLE ATTRIBUTES
	AH = 52h
	AL = subfunction
	    00h get handle attributes
		Return: AL = attribute
			    00h handle is volatile
			    01h handle is nonvolatile
	    01h set handle attributes
		BL = new attribute (see returned AL)
	    02h get attribute capability
		Return: AL = attribute capability
			    00h only volatile handles supported
			    01h both volatile and non-volatile supported
	DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Fh-91h) (see #2253)
SeeAlso: AH=53h
--------m-6753-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET HANDLE NAME
	AH = 53h
	AL = subfunction
	    00h get handle name
	       ES:DI -> 8-byte buffer for handle name
	    01h set handle name
	       DS:SI -> 8-byte handle name
	DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Fh,A1h) (see #2253)
SeeAlso: AH=52h
--------m-6754-------------------------------
INT 67 - LIM EMS 4.0 - GET HANDLE DIRECTORY
	AH = 54h
	AL = subfunction
	    00h get handle directory
	       ES:DI -> buffer for handle directory (see #2256)
		 01h search for named handle
	       DS:SI -> 8-byte name
	    02h get total number of handles
Return: AL = number of entries in handle directory (subfunction 00h)
	DX = value of named handle (subfunction 01h)
	BX = total number of handles (subfunction 02h)
	AH = status (00h,80h,81h,84h,8Fh,A0h,A1h) (see also #2255)
	    A1h a handle found had no name

Format of EMS handle directory entry:
Offset	Size	Description	(Table 2256)
 00h	WORD	handle
 02h  8 BYTEs	handle's name
--------m-6755-------------------------------
INT 67 - LIM EMS 4.0 - ALTER PAGE MAP AND JUMP
	AH = 55h
	AL = subfunction
	    00h physical page numbers provided by caller
	    01h segment addresses provided by caller
	DX = handle
	DS:SI -> structure containing map and jump address
Return: (at target address unless error)
	AH = status (00h,80h,81h,83h,84h,8Ah,8Bh,8Fh) (see #2253)
SeeAlso: AH=56h
--------m-6756-------------------------------
INT 67 - LIM EMS 4.0 - ALTER PAGE MAP AND CALL
	AH = 56h
	AL = subfunction
	    00h physical page numbers provided by caller
		DX = handle
		DS:SI -> structure containing page map and call address
	    01h segment addresses provided by caller
		DX = handle
		DS:SI -> structure containing page map and call address
	    02h get page map stack space required
		Return: BX = stack space required
Return: (if successful, the target address is called.  Use a RETF to return and
	 restore mapping context)
	AH = status (00h,80h,81h,83h,84h,8Ah,8Bh,8Fh) (see #2253)
SeeAlso: AH=55h
--------m-6756FF-----------------------------
INT 67 - RM386 v6.00 - ???
	AX = 56FFh
	DS:SI -> ???
	???
Return: ???
--------m-6757-------------------------------
INT 67 - LIM EMS 4.0 - MOVE/EXCHANGE MEMORY REGION
	AH = 57h
	AL = subfunction
	    00h move memory region
	    01h exchange memory region
	DS:SI -> structure describing source and destination (see #2258)
Return: AH = status (see #2257)
Note:	source and destination may overlap for a move, in which case the copy
	  direction is chosen such that the destination receives an intact copy
	  of the source region

(Table 2257)
Values for EMS function status:
 00h	successful
 80h	internal error
 81h	hardware failure
 83h	invalid handle
 84h	undefined function requested
 8Ah	invalid logical page number encountered
 8Fh	undefined subfunction
 92h	successful, but a portion of the source region has been overwritten
 93h	length of source or destination region exceeds length of region
	  allocated to either source or destination handle
 94h	conventional and expanded memory regions overlap
 95h	offset within logical page exceeds size of logical page
 96h	region length exceeds 1M
 97h	source and destination EMS regions have same handle and overlap
 98h	memory source or destination type undefined
 A2h	attempted to wrap around 1M conventional address space

Format of EMS copy data:
Offset	Size	Description	(Table 2258)
 00h	DWORD	region length in bytes
 04h	BYTE	source memory type
		00h conventional
		01h expanded
 05h	WORD	source handle (0000h if conventional memory)
 07h	WORD	source initial offset (within page if EMS, segment if convent)
 09h	WORD	source initial segment (conv mem) or logical page (EMS)
 0Bh	BYTE	destination memory type
		00h conventional
		01h expanded
 0Ch	WORD	destination handle
 0Eh	WORD	destination initial offset
 10h	WORD	destination initial segment or page
--------m-6758-------------------------------
INT 67 - LIM EMS 4.0 - GET MAPPABLE PHYSICAL ADDRESS ARRAY
	AH = 58h
	AL = subfunction
	    00h get mappable physical address array
		ES:DI -> buffer to be filled with array (see #2259)
	    01h get number of entries in m.p.a. array
Return: CX = number of entries in array
	AH = status (00h,80h,81h,84h,8Fh) (see #2257)
Note:	the returned array for subfunction 00h is filled in physical segment
	  address order

Format of EMS mappable physical address entry:
Offset	Size	Description	(Table 2259)
 00h	WORD	physical page segment
 02h	WORD	physical page number
--------m-675857-----------------------------
INT 67 U - NETROOM??? - ???
	AX = 5857h
	BX = function??? (0057h,0059h,0159h seen)
	???
Return: ???
Note:	BX=0059h appears to be analogous to AX=5800h and BX=0159h appears to
	  be analogous to AX=5801h; BX=0057h appears to indicate whether
	  AX=580xh or AX=5857h/BX=0x59h should be used
SeeAlso: AX=5BF0h
--------m-6759-------------------------------
INT 67 - LIM EMS 4.0 - GET EXPANDED MEMORY HARDWARE INFORMATION
	AH = 59h
	AL = subfunction
	    00h get hardware configuration array
		ES:DI -> buffer to be filled with array (see #2260)
	    01h get unallocated raw page count
		Return: BX = unallocated raw pages
			DX = total raw pages
Return: AH = status (see also AH=58h"EMS 4.0")
	    A4h access denied by operating system
Note:	subfunction 00h is for use by operating systems only, and can be
	  enabled or disabled at any time by the operating system

Format of EMS hardware configuration array:
Offset	Size	Description	(Table 2260)
 00h	WORD	size of raw EMM pages in paragraphs
 02h	WORD	number of alternate register sets
 04h	WORD	size of mapping-context save area in bytes
 06h	WORD	number of register sets assignable to DMA
 08h	WORD	DMA operation type
		0000h DMA with alternate register sets
		0001h only one DMA register set
--------m-675A-------------------------------
INT 67 - LIM EMS 4.0 - ALLOCATE STANDARD/RAW PAGES
	AH = 5Ah
	AL = subfunction
	    00h allocate standard pages
	    01h allocate raw pages
	BX = number of pages to allocate
Return: DX = handle
	AH = status (00h,80h,81h,84h,85h,87h,88h,8Fh) (see #2253)
--------m-675B-------------------------------
INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET
	AH = 5Bh
	AL = subfunction
	    00h get alternate map register set
		Return: BL = current active alternate map register set number
			ES:DI -> map register context save area if BL=00h
	    01h set alternate map register set
		BL = new alternate map register set number
		ES:DI -> map register context save area if BL=0
	    02h get alternate map save array size
		Return: DX = array size in bytes
	    03h allocate alternate map register set
		Return: BL = number of map register set; 00h = not supported
	    04h deallocate alternate map register set
		BL = number of alternate map register set
Return: AH = status (00h,80h,81h,84h,8Fh,9Ah-9Dh,A3h,A4h) (see #2261)
Note:	this function is for use by operating systems only, and can be
	  enabled or disabled at any time by the operating system

(Table 2261)
Values for EMS function status:
 00h	successful
 80h	internal error
 81h	hardware malfunction
 84h	undefined function requested
 8Fh	undefined subfunction
 9Ah	specified alternate map register or DMA register set not supported
 9Bh	all alternate map register or DMA register sets currently allocated
 9Ch	alternate map register or DMA register sets not supported
 9Dh	undefined or unallocated alternate map register/DMA register set
 9Eh	dedicated DMA channels not supported
 9Fh	specified dedicated DMA channel not supported
 A3h	source array corrupted
 A4h	operating system denied access
--------m-675B-------------------------------
INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET - DMA REGISTERS
	AH = 5Bh
	AL = subfunction
	    05h allocate DMA register set
		Return: BL = DMA register set number, 00h if not supported
	    06h enable DMA on alternate map register set
	       BL = DMA register set number
	       DL = DMA channel number
	    07h disable DMA on alternate map register set
	       BL = DMA register set number
	    08h deallocate DMA register set
	       BL = DMA register set number
Return: AH = status (00h,80h,81h,84h,8Fh,9Ah-9Fh,A3h,A4h) (see #2261)
Note:	this function is for use by operating systems only, and can be
	  enabled or disabled at any time by the operating system
--------m-675BE0-----------------------------
INT 67 - MICEMM v4D, RM386 - GET LINEAR ADDRESS OF MEMORY
	AX = 5BE0h
	ES:BX -> memory for which to get linear address
Return: AH = 00h
	CX:DX = linear address of physical memory corresponding to ES:BX
Program: RAM-MAN/386 is the memory manager included with Helix's Netroom;
	  MICEMM is a memory manager for some Micronics motherboards
Note:	this has been superceded by AX=DE06h, which should be used instead
SeeAlso: AX=5BF0h,AX=5BF1h,AX=DE06h
--------m-675BE1-----------------------------
INT 67 - RM386 v6.00+ - GET MEMORY MANAGER SIZE
	AX = 5BE1h
Return: AH = 00h
	CX = code and data size in bytes
	DX:BX = physical address of RM386 code
	DI:SI = total size of RM386 area including handle tables
	BP = number of additional pages (high DOS, etc.)
SeeAlso: AX=5BE0h,AX=5BE2h
--------m-675BE2-----------------------------
INT 67 - RM386 v6.00+ - GET INTERRUPT VECTORS
	AX = 5BE2h
Return: DS:SI -> V86-mode table (see #2262)
	ES:BX -> ??? (undoc, middle of device driver interrupt routine!)
SeeAlso: AX=5BE0h,AX=5BE1h

Format of RM386 V86-mode table:
Offset	Size	Description	(Table 2262)
 00h	DWORD	original INT 13 vector
 04h	DWORD	original INT 15 vector
 08h	DWORD	original INT 19 vector
 0Ch	DWORD	original INT 21 vector
 10h	DWORD	original INT 4B vector
 14h	DWORD	original INT 67 vector
--------m-675BF0-----------------------------
INT 67 - MICEMM v4D, RM386 - INSTALLATION CHECK
	AX = 5BF0h
Return: AH = 00h if MICEMM or RM386 present
	    BX = code segment of driver
Program: MICEMM is the Micronics Expanded Memory Manager; RM386 is the memory
	  manager included in Helix Software's Netroom
SeeAlso: AH=3Fh,AX=5BE0h,AX=5BF1h
--------m-675BF1-----------------------------
INT 67 - MICEMM v4D, RM386 - GET ADDRESS MAP
	AX = 5BF1h
	ES:BX -> 256-byte (MICEMM) or 512-byte (RM386) buffer for memory types
Return: AH = 00h
	ES:BX buffer filled (see #2263)
Note:	each byte in the buffer specifies the type of a 4K page of memory
SeeAlso: AX=5BE0h,AX=5BF0h

(Table 2263)
Values for MICEMM/RM386 memory type:
 00h	unused (MICEMM), RAM/available (RM386)
 02h	DOS extension (XMS UMB)
 04h	shadowed ROM
 08h	mappable EMS
 10h	page frame
 20h	ROM
 40h	reserved (video memory, etc)
 80h	RAM (MICEMM), Windows UMB (RM386)
--------m-675BF2-----------------------------
INT 67 - RM386 - GET RM386 INTERNAL DATA
	AX = 5BF2h
	CX = size of buffer
	DS:SI -> buffer for internal data
	(documentation says ES:BX -> buffer, SI = offset within RM386)
Return: buffer filled
Note:	the data returned by this function is release-specific
SeeAlso: AX=5BF0h
--------m-675BF3-----------------------------
INT 67 - RM386 - RETURN TO REAL MODE
	AX = 5BF3h
Return: nothing
Note:	use AX=5DE0h instead of this functin
SeeAlso: AX=5BF0h,AX=5DE0h
--------m-675BF4-----------------------------
INT 67 - RM386 v6.00 - GET RM386 GLOBAL FLAGS
	AX = 5BF4h
Return: AH = 00h
	BX = global flags 1 (see #2264)
	CX = global flags 2 (see #2265)
	DX = global flags 3 (see #2266)
	SI = global flags 4 (see #2267)
SeeAlso: AX=5BF0h

Bitfields for RM386 global flags 1:
Bit(s)	Description	(Table 2264)
 0-3	reserved
 4	V86 mode
 5	reserved
 6	80386 or higher CPU
 7,8	reserved
 9	A20 enabled at startup
 10	"HIGH_IO"
 11	ROM
 12	large frame
 13,14	reserved
 15	PS/2-style A20 control

Bitfields for RM386 global flags 2:
Bit(s)	Description	(Table 2265)
 0	HMA in use
 1	XMS present
 2	using XMS driver memory
 3	HIGH (NEAT only)
 4-7	reserved
 8	NOBKTRAP
 9	NORESET
 10	ALTMAP
 11	NOFRAME
 12-15	reserved

Bitfields for RM386 global flags 3:
Bit(s)	Description	(Table 2266)
 0	NOTEST
 1	NOEBDA
 2	Windows3 support
 3	system board mouse
 4	DISKBUF
 5	EBDALOW
 6	A20 global enable flag
 7	A20 flag
 8	EBDA moved to stub
 9	VXD file was found
 10	reserved
 11	NOBOOTMAP
 12	AUTO
 13	PS/2 machine
 14	Compaq ROM merge active
 15	NOHMA set

Bitfields for RM386 global flags 4:
Bit(s)	Description	(Table 2267)
 0	"NOV8259" don't virtualize interrupt controller
 1	NOSCSI
 2	NOSCAN
 3	NOTR
 4	ALTBOOT
 5	NOCOMPQ
 6	KB2TRAP
 7	DESHADOW
 8	Video 7 VGA detected
 9	reserved
 10	NOVGA
 11	NOPS2
 12	DEBUG
 13	NOVKB
 14,15	reserved
--------m-675BF5-----------------------------
INT 67 - RM386 v6.00 - GET RM386 EMS HANDLE COUNT
	AX = 5BF5h
Return: AH = status
	    00h successful
		BX = current number of allocated EMS handles
	    84h function not available
SeeAlso: AX=5BF0h
--------m-675C-------------------------------
INT 67 - LIM EMS 4.0 - PREPARE EXPANDED MEMORY HARDWARE FOR WARM BOOT
	AH = 5Ch
Return: AH = status (see #2268)

(Table 2268)
Values for EMS function status:
 00h	successful
 80h	internal error
 81h	hardware malfunction
 84h	undefined function requested
--------m-675D-------------------------------
INT 67 - LIM EMS 4.0 - ENABLE/DISABLE OS FUNCTION SET FUNCTIONS
	AH = 5Dh
	AL = subfunction
	    00h enable OS Function Set
	    01h disable OS Function Set
	    02h return access key (resets memory manager, returns access key at
		next invocation)
	BX,CX = access key returned by first invocation
Return: BX,CX = access key, returned only on first invocation of function
	AH = status (see also AH=5Ch)
	    8Fh undefined subfunction
	    A4h operating system denied access
--------m-675D03-----------------------------
INT 67 u - Nanosoft MD386 - INTERNAL INITIALIZATION
	AX = 5D03h
	???
Return: ???
Program: MD386 is a subset EMS memory manager by Nanosoft specifically designed
	  for use with the MultiDOS Plus multitasker
SeeAlso: AX=5D04h,AX=5E00h
--------m-675D04-----------------------------
INT 67 - Nanosoft MD386 - GET ALTERNATE MAP STRUCTURE
	AX = 5D04h
	BX = alternate register set number
	ES:DI -> 1024-byte buffer for map structure
Return: AH = status (see #2253)
	buffer filled if AH=00h
Note:	used for debugging purposes
SeeAlso: AX=5D05h
--------m-675D05-----------------------------
INT 67 - Nanosoft MD386 - GET INTERNAL HANDLE TABLE
	AX = 5D05h
	BX = handle number
	ES:DI -> 1024-byte buffer for handle table
Return: AH = status (see #2253)
	buffer filled if AH=00h
Note:	used for debugging purposes
SeeAlso: AX=5D04h
--------m-675DE0-----------------------------
INT 67 - RM386 - DISABLE RM386
	AX = 5DE0h
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE1h
--------m-675DE1-----------------------------
INT 67 - RM386 - ENABLE RM386
	AX = 5DE1h
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE0h
--------m-675DE2-----------------------------
INT 67 - RM386 - GET PAGE TABLE
	AX = 5DE2h
	ES:DI -> 1088-byte buffer for page table
Return: ES:DI buffer filled
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE3h
--------m-675DE3-----------------------------
INT 67 - RM386 - SET PAGE TABLE
	AX = 5DE3h
	ES:DI -> 1088-byte buffer containing page table
Notes:	only the access bits of the page table are used, the remainder is
	  ignored
	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE2h
--------m-675DE4-----------------------------
INT 67 - RM386 - SET WRITE-PROTECTION FOR PAGE IN FIRST MEGABYTE
	AX = 5DE4h
	BL = page number
	BH = access (00h read-only, 01h read-write)
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
--------m-675DE5-----------------------------
INT 67 - RM386 - MAP PHYSICAL PAGE TO PHYSICAL SEGMENT
	AX = 5DE5h
	EBX = physical page number
	DX = page number in first megabyte to be remapped (linear-addr SHR 12)
Return: AH = status
	    00h successful
	    8Bh invalid destination page (not in first megabyte)
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE6h
--------m-675DE6-----------------------------
INT 67 - RM386 - MAP LOGICAL 4K PAGE TO PHYSICAL SEGMENT
	AX = 5DE6h
	BX = logical page number in 4K pages from beginning of memory for EMS
	      handle
	CX = segment in first megabyte to be remapped
	DX = previously-allocated EMS handle
Return: AH = status
	    00h successful
	    83h invalid handle
	    8Ah invalid logical page (out of handle's range)
	    8Bh invalid destination page (not in first megabyte)
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE5h
--------m-675DE7-----------------------------
INT 67 - RM386 - SET PAGE TABLE BITS FOR RANGE OF PAGES
	AX = 5DE7h
	BL = page table bits to be set (bits 2-0 = U/S, R/W, P)
	CX = number of pages to set
	DX = first page number to set (in first megabyte)
Return: AH = status
	    00h successful
	    8Bh invalid destination page (not in first megabyte)
	    A5h invalid page bits
	    A6h invalid page count (overflows first megabyte)
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
--------m-675DE8-----------------------------
INT 67 - RM386 - GET PARTIAL PAGE TABLE
	AX = 5DE8h
	BX = starting page number in first megabyte+HMA (0000h-010Fh)
	CX = number of page table entries to get
	ES:DI -> buffer for DWORD page table entries
Return: AH = status (00h successful, 8Bh invalid page)
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE9h
--------m-675DE9-----------------------------
INT 67 - RM386 - SET PARTIAL PAGE TABLE
	AX = 5DE9h
	BX = starting page number in first megabyte+HMA (0000h-010Fh)
	CX = number of page table entries to get
	DS:SI -> buffer of DWORD page table entries
Return: AH = status (00h successful, 8Bh invalid destination page)
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DE8h
--------m-675DEA-----------------------------
INT 67 - RM386 - V86-MODE I/O PORT TRAPPING CONTROL
	AX = 5DEAh
	BX = function
	    00h globally disable V86-mode trapping
	    01h globally enable V86-mode trapping
		CL = interrupt to use for trapping
	    02h get I/O trapping state
Return: AH = status
	    00h successful
		BX = current trapping state (function 02h)
		    0000h disabled, 0001h enabled
		CX = interrupt used as trap interrupt (functions 00h and 02h)
Notes:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
	when I/O trapping is enabled and I/O port access occurs, RM386
	  simulates an INT instruction for the specified interrupt; the
	  interrupt handler is responsible for decoding the trapped instruction
	  and performing the appropriate action.  INT 2C/AX=002Dh provides a
	  similar but more-easily used interface.
SeeAlso: AX=5DEBh,AH=EFh"RM386",INT 2C/AX=002Dh
--------m-675DEB-----------------------------
INT 67 - RM386 - V86-MODE I/O TRAPPING PORT CONTROL
	AX = 5DEBh
	BX = function
	    00h disable V86-mode trapping for specified port
	    01h enable V86-mode trapping for specified port
	    02h get V86-mode trapping state for specified port
	DX = port for which to enable/disable/query trapping
Return: AH = status
	    00h successful
		BX = current trapping state (00h off, 01h on) (function 02)
	    A7h invalid port ID
	    A8h reserved port--cannot trap/untrap (DMA/INT/KBD controllers)
Notes:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DEAh
--------m-675DFD-----------------------------
INT 67 U - RM386 v6.00 - ???
	AX = 5DFDh
	???
Return: ???
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DFEh
--------m-675DFE-----------------------------
INT 67 U - RM386 v6.00 - ???
	AX = 5DFEh
	???
Return: ???
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DFDh
--------m-675DFF-----------------------------
INT 67 U - RM386 v6.00 - ???
	AX = 5DFFh
	???
Return: ???
Note:	RM386 traps this function on the initial transition to protected
	  mode caused by the INT instruction, which means it can not be
	  overridden simply by hooking the interrupt
SeeAlso: AX=5DFDh,AX=5DFEh
--------m-675E00-----------------------------
INT 67 - Nanosoft MD386 - SET HARDWARE BREAKPOINT
	AX = 5E00h
	DH = breakpoint number (0-3)
	DL = breakpoint attributes (used to set DR7)
	CX:BX = linear address of breakpoint
SeeAlso: AX=5D03h,AX=5E01h
--------m-675E01-----------------------------
INT 67 - Nanosoft MD386 - GET HARDWARE DEBUG REGISTER
	AX = 5E01h
	BL = register number (0-3,7)
Return: CX:BX = value of specified DRx register
SeeAlso: AX=5E00h
--------m-675E02-----------------------------
INT 67 - Nanosoft MD386 - SET DEBUG EXCEPTION HANDLER
	AX = 5E02h
	CX:BX -> exception handler
Note:	the specified exception handler is called with a simulated interrupt
	  whenever a debug exception occurs which was caused by a hardware
	  breakpoint set with the debug registers
SeeAlso: AX=5E04h,AX=5E05h
--------m-675E03-----------------------------
INT 67 - Nanosoft MD386 - ENABLE/DISABLE MEMORY WRITE PROTECTION
	AX = 5E03h
	BL = register map set number
	BH = new state (00h read-only, else read-write)
	CX = linear page number (linear address SHR 12)
Note:	setting write protection in map set 0 will cause the setting to become
	  the default for newly-allocated map sets
--------m-675E04-----------------------------
INT 67 - Nanosoft MD386 - GET DEBUG EXCEPTION
	AX = 5E04h
Return: BL = debug exception (low byte of DR6 register)
SeeAlso: AX=5E02h,AX=5E05h
--------m-675E05-----------------------------
INT 67 - Nanosoft MD386 - IGNORE NEXT DEBUG EXCEPTION
	AX = 5E05h
Note:	may be required when using AX=5E02h for handling instruction
	  breakpoints
SeeAlso: AX=5E02h,AX=5E04h
--------m-6760-------------------------------
INT 67 - EEMS - GET PHYSICAL WINDOW ARRAY
	AH = 60h
	ES:DI -> buffer
Return: AH = status (see also AH=40h)
	AL = number of entries
	buffer at ES:DI filled
--------m-6761-------------------------------
INT 67 - EEMS - GENERIC ACCELERATOR CARD SUPPORT
	AH = 61h
	???
Return: ???
Note:	can be used by accelerator card manufacturer to flush RAM cache,
	  ensuring that the cache accurately reflects what the processor would
	  see without the cache.
--------m-6768-------------------------------
INT 67 - EEMS - GET ADDRESSES OF ALL PAGE FRAMES IN SYSTEM
	AH = 68h
	ES:DI -> buffer
Return: AH = status (see also AH=40h)
	AL = number of entries
	buffer at ES:DI filled
Note:	equivalent to LIM 4.0 function 58h
--------m-6769-------------------------------
INT 67 - EEMS - MAP PAGE INTO FRAME
	AH = 69h
	AL = frame number
	BX = page number
	DX = handle
Return: AH = status (see also AH=40h)
Note:	similar to EMS function 44h
SeeAlso: AH=44h,AH=50h,AH=6Ah
--------m-676A-------------------------------
INT 67 - EEMS - PAGE MAPPING
	AH = 6Ah
	AL = subfunction
	    00h save partial page map
		CH = first page frame
		CL = number of frames
		ES:DI -> buffer which is to be filled
	    01h restore partial page map
		CH = first page frame
		CL = number of frames
		DI:SI -> previously saved page map
	    02h save and restore partial page map
		CH = first page frame
		CL = number of frames
		ES:DI = buffer for current page map
		DI:SI = new page map
	    03h get size of save array
		CH = first page frame
		CL = number of frames
		Return: AL = size of array in bytes
	    04h switch to standard map register setting
	    05h switch to alternate map register setting
	    06h deallocate pages mapped to frames in conventional memory
		CH = first page frame
		CL = number of frames
Return: AH = status (see #2253)
Note:	similar to EMS function 4Eh, except that a subrange of pages can be
	  specified
SeeAlso: AH=69h
--------m-676B-------------------------------
INT 67 - DESQview 2.42-2.53 - BUG
	AH = 6Bh
Note:	the EMM.DVR portion of DESQview branches to a random location on this
	  function due to a fencepost error
--------m-67DD-------------------------------
INT 67 - Quadtel QMAPS - API
	AH = DDh
	AL = function
	???
Return: ???
Notes:	details are not yet available
	Hewlett-Packard's HPMM.SYS is a licensed version of QMAPS, and thus
	  supports this API
SeeAlso: AH=3Fh,AX=FFA5h
--------E-67DE00-----------------------------
INT 67 - Virtual Control Program Interface - INSTALLATION CHECK
	AX = DE00h
Return: AH = status
	    00h VCPI is present
		BH = major version number
		BL = minor version number
	    nonzero  VCPI not present
BUG:	MS Windows 3.00 is reported to "object violently" to this call.
SeeAlso: INT 2F/AX=1687h
--------E-67DE01-----------------------------
INT 67 - Virtual Control Program Interface - GET PROTECTED MODE INTERFACE
	AX = DE01h
	ES:DI -> 4K page table buffer
	DS:SI -> three descriptor table entries in GDT
		first becomes code segment descriptor, other two for use by
		  main control program
Return: AH = 00h successful
	    DI -> first unused page table entry in buffer
	    EBX -> protected mode entry point in code segment (see #2269)
	AH = nonzero  failed
Note:	protected mode entry point may be called with AX=DE00h-DE05h and
	  AX=DE0Ch (in each case, all other registers as appropriate for
	  the function)
SeeAlso: INT 2F/AX=1687h,INT 67/AH=3Fh

(Table 2269)
Call QEMM v6.03 protected mode entry point additionally with:
	AX = DF00h ???
		???
		Return: ???
	AX = DF01h ???
		???
		Return: ???
--------E-67DE02-----------------------------
INT 67 - Virtual Control Program Interface - GET MAX PHYSICAL MEMORY ADDRESS
	AX = DE02h
Return: AH = 00h  successful
	    EDX = physical address of highest 4K memory page
	AH nonzero: failed
SeeAlso: AH=3Fh
--------E-67DE03-----------------------------
INT 67 - Virtual Control Program Interface - GET NUMBER OF FREE 4K PAGES
	AX = DE03h
Return: AH = 00h  successful
	    EDX = number of free 4K pages
	AH nonzero: failed
Notes:	returns total number of pages available to ALL tasks in system
	also available in protected mode by calling the protected-mode VCPI
	  entry point (see AX=DE01h,#2269)
SeeAlso: AX=DE04h
--------E-67DE04-----------------------------
INT 67 - Virtual Control Program Interface - ALLOCATE A 4K PAGE
	AX = DE04h
Return: AH = 00h successful
	    EDX = physical address of allocated page
	AH nonzero: failed
Notes:	the client program is responsible for freeing all memory allocated
	  with this call before terminating
	also available in protected mode by calling the protected-mode VCPI
	  entry point (see AX=DE01h,#2269)
SeeAlso: AH=3Fh,AX=DE03h,AX=DE05h
--------E-67DE05-----------------------------
INT 67 - Virtual Control Program Interface - FREE 4K PAGE
	AX = DE05h
	EDX = physical address of 4K page
Return: AH = status
	    00h successful
	    nonzero failed
Note:	also available in protected mode by calling the protected-mode VCPI
	  entry point (see AX=DE01h,#2269)
SeeAlso: AH=3Fh,AX=DE04h
--------E-67DE06-----------------------------
INT 67 - Virtual Control Program Interface - GET PHYS ADDR OF PAGE IN FIRST MB
	AX = DE06h
	CX = page number (linear address shifted right 12 bits)
Return: AH = status
	    00h successful
		EDX = physical address of page
	    nonzero invalid page number (AH = 8Bh recommended)
SeeAlso: AX=5BE0h
--------E-67DE07-----------------------------
INT 67 - Virtual Control Program Interface - READ CR0
	AX = DE07h
Return: AH = 00h
	EBX = value of Control Register 0
SeeAlso: AH=3Fh,AX=DE07h
--------E-67DE08-----------------------------
INT 67 - Virtual Control Program Interface - READ DEBUG REGISTERS
	AX = DE08h
	ES:DI -> array of 8 DWORDs
Return: AH = 00h
	buffer filled with DR0 first, DR7 last, DR4 and DR5 unused
SeeAlso: AH=3Fh,AX=DE09h
--------E-67DE09-----------------------------
INT 67 - Virtual Control Program Interface - SET DEBUG REGISTERS
	AX = DE09h
	ES:DI -> array of 8 DWORDs holding new values of debug registers
Return: AH = 00h
Note:	values for DR4 and DR5 ignored
SeeAlso: AH=3Fh,AX=DE08h
--------E-67DE0A-----------------------------
INT 67 - Virtual Control Program Interface - GET 8259 INTERRUPT VECTOR MAPPINGS
	AX = DE0Ah
Return: AH = 00h successful
	    BX = first vector used by master 8259 (IRQ0)
	    CX = first vector used by slave 8259 (IRQ8)
	AH nonzero: failed
Note:	CX is undefined in systems without a slave 8259
SeeAlso: AX=DE0Bh,INT 21/AX=250Ch,INT 31/AX=0400h
--------E-67DE0B-----------------------------
INT 67 - Virtual Control Program Interface - SET 8259 INTERRUPT VECTOR MAPPINGS
	AX = DE0Bh
	BX = first vector used by master 8259
	CX = first vector used by slave 8259
	interrupts disabled
Return: AH = 00h successful
	AH nonzero: failed
Notes:	This call merely informs the server that the client has changed the
	  interrupt mappings.  The client may not change the mappings if they
	  have already been changed by the server or another client, and is
	  responsible for restoring the original mappings before terminating.
SeeAlso: AX=DE0Ah,INT 2C/AX=002Ah
--------E-67DE0C-----------------------------
INT 67 - Virtual Control Program Interface - SWITCH TO PROTECTED MODE
	AX = DE0Ch
	ESI = linear address in first megabyte of values for system
	      registers (see #2270)
	interrupts disabled
Return: interrupts disabled
	GDTR, IDTR, LDTR, TR loaded
	SS:ESP must have at least 16 bytes space, and the entry point is
			required to set up a new stack before enabling interrupts
	EAX, ESI, DS, ES, FS, GS destroyed
Note:	in protected mode, calling the protected-mode VCPI entry point with
	  AX = DE0Ch
	  DS = segment selector mapping entire linear address space obtained
		  via AX=DE01h
	  SS:ESP in first megabyte of linear memory
	  STACK:QWORD  return address from FAR call to 32-bit segment
		DWORD  EIP
		DWORD  CS
		DWORD  reserved for EFLAGS
		DWORD  ESP
		DWORD  SS
		DWORD  ES
		DWORD  DS
		DWORD  FS
		DWORD  GS
	  and interrupts disabled, will switch to virtual86 mode with
	    interrupts disabled, all segment registers loaded, and EAX
	    destroyed.
SeeAlso: AH=3Fh,INT 15/AH=89h,INT 38/AH=10h

Format of system register values for switch to protected mode:
Offset	Size	Description	(Table 2270)
 00h	DWORD	value for CR3
 04h	DWORD	linear address in first megabyte of value for GDTR
 08h	DWORD	linear address in first megabyte of value for IDTR
 0Ch	WORD	value for LDTR
 0Eh	WORD	value for TR
 10h	PWORD	CS:EIP of protected mode entry-point
--------m-67DE0F-----------------------------
INT 67 - Netroom3 - ???
	AX = DE0Fh
	???
Return: ???
Note:	called by Netroom's DPMI.EXE
--------m-67EF-------------------------------
INT 67 - RM386 v6.00+ - EXECUTE XMS FUNCTION
	AH = EFh
	AL = function (00h-12h,80h-8Fh)
	other register as appropriate for XMS function
Return: varies by function (see INT 2F/AX=4310h)
Note:	these functions appear to be equivalent to the XMS functions with the
	  same numbers
SeeAlso: AX=5DFFh"RM386",INT 2F/AX=4310h
--------m-67FFA5-----------------------------
INT 67 - Microsoft EMM386.EXE v4.20+ - INSTALLATION CHECK
	AX = FFA5h
Return: AX = 845Ah/84A5h if loaded
	    BX:CX -> API entry point (see #2271)
Notes:	this call is available even if EMM386 is not providing EMS
	the returned AX is 845Ah inside of MSWindows, 84A5h under bare DOS
	if no other program has hooked INT 67, an alternate installation
	  check is to test for the string
	  "MICROSOFT EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
	  handler's segment; the word immediately preceding this string
	  contains the offset of the API entry point
SeeAlso: AH=3Fh,AX=FFA5h/BX=4345h,INT 21/AX=4402h"EMM386.EXE"

(Table 2271)
Call EMM386.EXE API entry point with:
	AH = 00h get memory manager's status
	    Return: AH = status
			bit 0: not active (OFF)
			bit 1: in "Auto" mode
	AH = 01h set memory manager's state
	    AL = new state (00h ON, 01h OFF, 02h AUTO)
	AH = 02h Weitek coprocessor support
	    AL = subfunction
		00h get Weitek support state
		    Return: AL = status
				bit 0: Weitek coprocessor is present
				bit 1: Weitek support is enabled
		01h turn on Weitek support
		02h turn off Weitek support
     --- v4.20-4.41 only ---
	AH = 03h Windows support???
	    AL = subfunction (00h, 01h)
	AH = 04h print copyright notice to standard output
		 (using INT 21/AH=09h)
	AH = 05h print available report
		 (the one shown when running EMM386 from the DOS prompt)
SeeAlso: #0733 at INT 21/AX=4402h/SF=02h,#1402 at INT 2F/AX=12FFh/BX=0106h
--------m-67FFA5BX4345-----------------------
INT 67 U - Compaq CEMM v5.10+ - PRIVATE API
	AX = FFA5h
	BX = 4345h ("CE")
	DX = subfunction
	    0000h unshadow video ROM???
	    0001h shadow video ROM???
	    0002h map pages
		CX = number of pages (00h=one)
		ESI = linear address of first page to map into address space
		EDI = linear starting address at which pages are to be visible
	    0003h get ???
		Return: DX = ??? (0-2)
	    0004h BUG: crashes system due to fencepost error
Return: AH = 84h
	AL = status (84h = error, FFh = success)
Note:	if BX <> 4345h or DX > 0004h on entry, CEMM behaves identically to
	  Microsoft's EMM386 (see AX=FFA5h"EMM386")
SeeAlso: AX=FFA5h"EMM386",#0733 at INT 21/AX=4402h/SF=02h,#2271
--------!---Section--------------------------
Interrupt List, part 11 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------I-68---------------------------------
INT 68 - Sangoma CCPOP 3270 resident module
SeeAlso: INT 67"Sangoma",INT 92"Sangoma"
--------N-68---------------------------------
INT 68 - Novell NetWare LU6.2
Note:	the installation check consists of testing for the signature string
	  "APPC/PC" nine bytes before the interrupt handler
SeeAlso: AH=01h/SF=1B00h,AH=FAh
--------h-68---------------------------------
INT 68 C - HP Vectra AT - IRQ16 - 8041 SERVICE REQUEST
SeeAlso: INT 08"IRQ0",INT 69"HP Vectra",INT 6F"HP Vectra"
--------N-6801--SF1B00-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - DISPLAY
	AH = 01h subfn 1B00h
	DS:DX -> control block (see #2272)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2B00h,INT 68"Novell"

Format of APPC/PC "DISPLAY" control block:
Offset	Size	Description	(Table 2272)
 00h 12 BYTEs	reserved
 0Ch	WORD	1B00h (verb "DISPLAY")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	00h
 1Ah  8 BYTEs	(big-endian) logical unit ID
 22h  8 BYTEs	(big-endian) partner logical unit name
 2Ah  8 BYTEs	(big-endian) mode name
 32h	BYTE	logical unit session limit
 33h	BYTE	partner logical unit session limit
 34h	BYTE	node maximum negotiable session limit
 35h	BYTE	current session limit
 36h	BYTE	minimum negotiated winner limit
 37h	BYTE	maximum negotiated loser limit
 38h	BYTE	active session count
 39h	BYTE	active CONWINNER session count
 3Ah	BYTE	active CONLOSER session count
 3Bh	BYTE	session termination count
 3Ch	BYTE	bit 7: SESSION_TERMINATION_TARGET_DRAIN
		bit 6: SESSION_TERMINATION_SOURCE_DRAIN

(Table 2273)
Values for APPC/PC return code:
 0000h	successful
 0001h	BAD_TP_ID
 0002h	BAD_CONV_ID
 0003h	bad logical unit ID
 0008h	no physical unit attached
 0110h	bad state
 01B1h	BAD_PART_LUNAME
 01B2h	bad mode name
 0201h	physical unit already active
 0211h	logical unit already active
 0212h	BAD_PART_SESS
 0213h	BAD_RU_SIZES
 0214h	BAD_MODE_SESS
 0216h	BAD_PACING_CNT
 0219h	EXTREME_RUS
 021Ah	SNASVCMG_1
 0223h	SSCP_CONNECTED_LU
 0230h	invalid change
 0243h	too many TPs
 0272h	adapter close failure
 0281h	GET_ALLOC_BAD_TYPE
 0282h	unsuccessful
 0283h	DLC failure
 0284h	unrecognized DLC
 0286h	duplicate DLC
 0301h	SSCP_PU_SESSION_NOT_ACTIVE
 0302h	data exceeds RU size
 0401h	invalid direction
 0402h	invalid type
 0403h	segment overlap
 0404h	invalid first character
 0405h	table error
 0406h	conversion error
 F0010000h	APPC disabled
 F0020000h	APPC busy
 F0030000h	APPC abended
 F0040000h	incomplete
--------N-6801--SF2000-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - ATTACH PHYSICAL UNIT
	AH = 01h subfn 2000h
	DS:DX -> control block (see #2274)
Return: control block updated
SeeAlso: AH=01h/SF=2100h,AH=01h/SF=2B00h

Format of APPC/PC "Attach Physical Unit" control block:
Offset	Size	Description	(Table 2274)
 00h 12 BYTEs	reserved
 0Ch	WORD	2000h (verb "Attach Physical Unit")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	00h
 1Ah	BYTE	version
 1Bh	BYTE	release
 1Ch  8 BYTEs	(big-endian) net name
 24h  8 BYTEs	(big-endian) physical unit name
 2Ch  8 BYTEs	00h
 34h	DWORD	pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
		(see also AH=01h/SF=2100h)
 38h	DWORD	00h
 3Ch	BYTE	00h RETURN_CONTROL: COMPLETE
		01h RETURN_CONTROL: INCOMPLETE
--------N-6801--SF2100-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - ATTACH LOGICAL UNIT
	AH = 01h subfn 2100h
	DS:DX -> control block (see #2275)
Return: control block updated
SeeAlso: #2278,#2279,#2281,AH=01h/SF=2000h,AH=01h/SF=2200h,AH=01h/SF=2B00h

Format of APPC/PC "Attach Logical Unit" control block:
Offset	Size	Description	(Table 2275)
 00h 12 BYTEs	reserved
 0Ch	WORD	2100h (verb "Attach Logical Unit")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	70  offset to partner logical unit record
 1Ah  8 BYTEs	(big-endian) logical unit name
 22h  8 BYTEs	(big-endian) logical unit ID
 2Ah	BYTE	logical unit local address
 2Bh	BYTE	logical unit session limit
 2Ch	DWORD	pointer to CREATE_TP_EXIT routine,
		FFFFFFFFh = reject incoming ALLOCATEs
		00000000h = queue ALLOCATEs
 30h	DWORD	00h
 34h	DWORD	pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
 38h	DWORD	00h
 3Ch	BYTE	maximum TPs
 3Dh	BYTE	queue depth
 3Eh	DWORD	pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh=no pswd exit
 42h	DWORD	00h
 46h	WORD	total length of partner records
 48h	var	array of partner logical unit records (see #2276)
SeeAlso: #2278,#2279,#2281

Format of APPC/PC partner logical unit record:
Offset	Size	Description	(Table 2276)
 00h	WORD	length of this partner logical unit record
 02h	WORD	42  offset to mode records
 04h  8 BYTEs	(big-endian) partner logical unit name
 0Ch	BYTE	partner logical unit security capabilities
		bit 7: already verified
		bit 6: conversation level security
		bit 5: session level security
 0Dh	BYTE	partner logical unit session limit
 0Eh	WORD	partner logical unit maximum MC_SEND_LL
 10h  8 BYTEs	(big-endian) partner logical unit DLC name
 18h	BYTE	partner logical unit adapter number
 19h 17 BYTEs	(counted string) partner logical unit adapter address
 2Ah	WORD	total length of mode records
 2Ch 16N BYTEs	array of mode records (see #2277)

Format of mode record:
Offset	Size	Description	(Table 2277)
 00h	WORD	16  length of this mode record
 02h  8 BYTEs	(big-endian) mode name
 0Ah	WORD	RU_SIZE high bound
 0Ch	WORD	RU_SIZE low bound
 0Eh	BYTE	mode maximum negotiable session limit
 0Fh	BYTE	pacing size for receive

Routines defined by LU_LU_PASSWORD_EXIT, CREATE_TP_EXIT, and SYSTEM_LOG_EXIT
pointers are called by pushing the DWORD pointer to the verb on the stack and
then performing a FAR call.

Format of ACCESS_LU_LU_PW verb:
Offset	Size	Description	(Table 2278)
 00h 12 BYTEs	reserved
 0Ch	WORD	1900h (verb "ACCESS_LU_LU_PW")
 0Eh  8 BYTEs	(big-endian) logical unit ID
 16h  8 BYTEs	(big-endian) logical unit name
 1Eh  8 BYTEs	(big-endian) partner logical unit name
 26h 17 BYTEs	(counted string) partner fully qualified logical unit name
 37h	BYTE	password available (0=no, 1=yes)
 38h  8 BYTEs	password
SeeAlso: #2275,#2279,#2281

Format of CREATE_TP verb:
Offset	Size	Description	(Table 2279)
 00h 12 BYTEs	reserved
 0Ch	WORD	2300h (verb "CREATE_TP")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) sense code (see #2280)
 18h  8 BYTEs	(big-endian) TP ID
 20h  8 BYTEs	(big-endian) logical unit ID
 28h	DWORD	(big-endian) conversation ID
 2Ch	BYTE	0 basic conversation, 1 mapped conversation
 2Dh	BYTE	0 no sync level, 1 confirm
 2Eh	BYTE	reserved
 2Fh 65 BYTEs	(counted string) transaction program name
 70h  6 BYTEs	00h
 76h	WORD	length of ERROR_LOG_DATA to return
 78h	DWORD	pointer to ERROR_LOG_DATA buffer
 7Ch  8 BYTEs	(big-endian) partner logical unit name
 84h 18 BYTEs	(counted string) partner fully qualified logical unit name
 96h  8 BYTEs	(big-endian) mode name
 9Eh 12 BYTEs	00h
 AAh 11 BYTEs	(counted string) password
 B5h 11 BYTEs	(counted string) user ID
 C0h	BYTE	0 verification should be performed
		1 already verified
SeeAlso: #2278,#2281

(Table 2280)
Values for APPC/PC sense code:
 00000000h	Ok
 080F6051h	SECURITY_NOT_VALID
 084B6031h	TP_NOT_AVAIL_RETRY
 084C0000h	TP_NOT_AVAIL_NO_RETRY
 10086021h	TP_NAME_NOT_RECOGNIZED
 10086034h	CONVERSATION_TYPE_MISMATCH
 10086041h	SYNC_LEVEL_NOT_SUPPORTED

Format of SYSLOG verb:
Offset	Size	Description	(Table 2281)
 00h 12 BYTEs	reserved
 0Ch	WORD	2600h (verb "SYSLOG")
 0Eh 10 BYTEs	00h
 18h	WORD	(big-endian) type
 1Ah	DWORD	(big-endian) subtype
 1Eh	DWORD	pointer to ADDITIONAL_INFO
 22h	DWORD	(big-endian) conversation ID
 26h  8 BYTEs	(big-endian) TP ID
 2Eh  8 BYTEs	(big-endian) physical unit or logical unit name
 36h	WORD	length of data
 38h	DWORD	pointer to data
 3Ch	BYTE	00h
SeeAlso: #2278,#2279
--------N-6801--SF2200-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - DETACH LOGICAL UNIT
	AH = 01h subfn 2200h
	DS:DX -> control block (see #2282)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2100h,AH=01h/SF=2700h

Format of APPC/PC "Detach Logical Unit" control block:
Offset	Size	Description	(Table 2282)
 00h 12 BYTEs	reserved
 0Ch	WORD	2200h (verb "Detach Logical Unit")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h  8 BYTEs	(big-endian) logical unit ID
 20h	BYTE	00h
--------N-6801--SF2700-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - DETACH PHYSICAL UNIT
	AH = 01h subfn 2700h
	DS:DX -> control block (see #2283)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2100h,AH=01h/SF=2200h

Format of APPC/PC "Detach Physical Unit" control block:
Offset	Size	Description	(Table 2283)
 00h 12 BYTEs	reserved
 0Ch	WORD	2700h (verb "Detach Physical Unit")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	BYTE	00h  type: hard
		01h  type: soft
--------N-6801--SF2B00-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - ACTIVATE DLC
	AH = 01h subfn 2B00h
	DS:DX -> control block (see #2284)
Return: control block updated
SeeAlso: AH=01h/SF=1B00h,AH=01h/SF=2000h

Format of APPC/PC "Activate DLC" control block:
Offset	Size	Description	(Table 2284)
 00h 12 BYTEs	reserved
 0Ch	WORD	2B00h (verb "Activate DLC")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h  8 BYTEs	(big-endian) DLC name
 20h	BYTE	adapter number
--------N-6802--SF0100-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - ALLOCATE
	AH = 02h subfn 0100h
	DS:DX -> control block (see #2285)
Return: control block updated
SeeAlso: AH=02h/SF=0500h

Format of APPC/PC "Allocate" control block:
Offset	Size	Description	(Table 2285)
 00h 12 BYTEs	reserved
 0Ch	WORD	0100h (verb "Allocate" or "MC_Allocate")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	(MC_Allocate only) conversation type
		0 basic conversation
		1 mapped conversation
 27h	BYTE	SYNC_LEVEL (00h none, 01h confirm)
 28h	WORD	0000h
 2Ah	BYTE	RETURN_CONTROL
		00h when session allocated
		01h immediate
		02h when session free
 2Bh  8 BYTEs	00h
 33h  8 BYTEs	(big-endian) partner logical unit name
 3Bh  8 BYTEs	(big-endian) mode name
 43h 65 BYTEs	(counted string) TP name
 84h	BYTE	security (00h none, 01h same, 02h pgm)
 85h 11 BYTEs	00h
 90h 11 BYTEs	(counted string) password
 9Bh 11 BYTEs	(counted string) user ID
 A6h	WORD	PIP_DATA length
 A8h	DWORD	pointer to PIP_DATA

(Table 2286)
Values for APPC/PC primary return code:
 0000h	successful
 0001h	parameter check
 0002h	state check
 0003h	allocation error
 0005h	deallocate abended
 0006h	deallocate abended program
 0007h	deallocate abended SVC
 0008h	deallocate abended timer
 0009h	deallocate normal return
 000Ah	data posting blocked
 000Bh	posting not active
 000Ch	PROG_ERROR_NO_TRUNC
 000Dh	PROG_ERROR_TRUNC
 000Eh	PROG_ERROR_PURGING
 000Fh	CONV_FAILURE_RETRY
 0010h	CONV_FAILURE_NO_RETRY
 0011h	SVC_ERROR_NO_TRUNC
 0012h	SVC_ERROR_TRUNC
 0013h	SVC_ERROR_PURGING
 0014h	unsuccessful
 0018h	CNOS partner logical unit reject
 0019h	conversation type mixed
 F001h	APPC disabled
 F002h	APPC busy
 F003h	APPC abended
 F004h	incomplete

(Table 2287)
Values for APPC/PC error code:
 0001h	bad TP ID
 0002h	bad conversation ID
 0004h	allocation error, no retry
 0005h	allocation error, retry
 0006h	data area crosses segment boundary
 0010h	bad TPN length
 0011h	bad CONV length
 0012h	bad SYNC level
 0013h	bad security selection
 0014h	bad return control
 0015h	SEC_TOKENS too big
 0016h	PIP_LEN incorrect
 0017h	no use of SNASVCMG
 0018h	unknown partner mode
 0031h	confirm: SYNC_NONE
 0032h	confirm: bad state
 0033h	confirm: NOT_LL_BDY
 0041h	confirmed: bad state
 0051h	deallocate: bad type
 0052h	deallocate: flush bad state
 0053h	deallocate: confirm bad state
 0055h	deallocate: NOT_LL_BDY
 0057h	deallocate: log LL_WRONG
 0061h	flush: not send state
 0091h	post on receipt: invalid length
 0092h	post on receipt: not in receive state
 0093h	post on receipt: bad fill
 00A1h	prepare to receive:invalid type
 00A2h	prepare to receive: unfinished LL
 00A3h	prepare to receive: not in send state
 00B1h	receive and wait: bad state
 00B2h	receive and wait: NOT_LL_BDY
 00B5h	receive and wait: bad fill
 00C1h	receive immediate: not in receive state
 00C4h	receive immediate: bad fill
 00E1h	request to send: not in receive state
 00F1h	send data: bad LL
 00F2h	send data: not in send state
 0102h	send error: log LL wrong
 0103h	send error: bad type
 0121h	test: invalid type
 0122h	test: not in receive state
--------N-6802--SF0300-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - CONFIRM
	AH = 02h subfn 0300h
	DS:DX -> control block (see #2288)
Return: control block updated
SeeAlso: AH=02h/SF=0400h

Format of APPC/PC "Confirm" control block:
Offset	Size	Description	(Table 2288)
 00h 12 BYTEs	reserved
 0Ch	WORD	0300h (verb "Confirm" or "MC_Confirm")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	request to send received (0=no, 1=yes)
--------N-6802--SF0400-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - CONFIRMED
	AH = 02h subfn 0400h
	DS:DX -> control block (see #2289)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Confirmed" control block:
Offset	Size	Description	(Table 2289)
 00h 12 BYTEs	reserved
 0Ch	WORD	0400h (verb "Confirmed" or "MC_Confirmed")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
--------N-6802--SF0500-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - DEALLOCATE
	AH = 02h subfn 0500h
	DS:DX -> control block (see #2290)
Return: control block updated
SeeAlso: AH=02h/SF=0100h,AH=02h/SF=0300h

Format of APPC/PC "Deallocate" control block:
Offset	Size	Description	(Table 2290)
 00h 12 BYTEs	reserved
 0Ch	WORD	0500h (verb "Deallocate" or "MC_Deallocate")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	00h
 27h	BYTE	type
		00h SYNC_LEVEL
		01h FLUSH
		02h ABEND_PROC
		03h ABEND_SVC
		04h ABEND_TIMER
		05h ABEND
 28h	WORD	(MC_Deallocate only) length of error log data
 2Ah	DWORD	(MC_Deallocate only) pointer to error log data
--------N-6802--SF0600-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - FLUSH
	AH = 02h subfn 0600h
	DS:DX -> control block (see #2291)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Flush" control block:
Offset	Size	Description	(Table 2291)
 00h 12 BYTEs	reserved
 0Ch	WORD	0600h (verb "Flush" or "MC_Flush")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
--------N-6802--SF0700-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - GET ATTRIBUTES
	AH = 02h subfn 0700h
	DS:DX -> control block (see #2292)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Get_Attributes" control block:
Offset	Size	Description	(Table 2292)
 00h 12 BYTEs	reserved
 0Ch	WORD	0700h (verb "Get_Attributes" or "MC_Get_Attributes")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h  8 BYTEs	(big-endian) logical unit ID
 2Eh	BYTE	00h
 2Fh	BYTE	SYNC_LEVEL (0=none, 1=confirm)
 30h  8 BYTEs	(big-endian) mode name
 38h  8 BYTEs	(big-endian) own net name
 40h  8 BYTEs	(big-endian) own logical unit name
 48h  8 BYTEs	(big-endian) partner logical unit name
 50h 18 BYTEs	(counted string) partner's fully qualified logical unit name
 62h	BYTE	00h
 63h 11 BYTEs	(counted string) user ID
--------N-6802--SF0800-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - GET CONVERSATION TYPE
	AH = 02h subfn 0800h
	DS:DX -> control block (see #2293)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Get_Type" control block:
Offset	Size	Description	(Table 2293)
 00h 12 BYTEs	reserved
 0Ch	WORD	0800h (verb "Get_Type")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	(ret) type (0=basic conversation, 1=mapped conversation)
--------N-6802--SF0900-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - POST ON RECEIPT
	AH = 02h subfn 0900h
	DS:DX -> control block (see #2294)
Return: control block updated
SeeAlso: AH=02h/SF=0A00h

Format of APPC/PC "Post_on_Receipt" control block:
Offset	Size	Description	(Table 2294)
 00h 12 BYTEs	reserved
 0Ch	WORD	0900h (verb "Post_on_Receipt")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	WORD	maximum length
 28h	BYTE	fill (0=buffer, 1=LL)
--------N-6802--SF0A00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - PREPARE TO RECEIVE
	AH = 02h subfn 0A00h
	DS:DX -> control block (see #2295)
Return: control block updated
SeeAlso: AH=02h/SF=0900h,AH=02h/SF=0B00h

Format of APPC/PC "Prepare_to_Receive" control block:
Offset	Size	Description	(Table 2295)
 00h 12 BYTEs	reserved
 0Ch	WORD	0A00h (verb "Prepare_to_Receive" or "MC_Prepare_to_Receive")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	type (0=SYNC_LEVEL, 1=FLUSH)
 27h	BYTE	locks (0=short, 1=long)
--------N-6802--SF0B00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - RECEIVE AND WAIT
	AH = 02h subfn 0B00h
	DS:DX -> control block (see #2296)
Return: control block updated
SeeAlso: AH=02h/SF=0C00h,AH=02h/SF=0F00h

Format of APPC/PC "Receive_and_Wait" control block:
Offset	Size	Description	(Table 2296)
 00h 12 BYTEs	reserved
 0Ch	WORD	0B00h (verb "Receive_and_Wait" or "MC_Receive_and_Wait")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	type of information received (see #2297)
 27h	BYTE	(MC_Receive_and_Wait only) fill (0=buffer, 1=LL)
 28h	BYTE	Request_to_Send_Received (0=no, 1=yes)
 29h	WORD	maximum length
 2Bh	WORD	data length
 2Dh	DWORD	pointer to data

(Table 2297)
Values for type of information received:
 00h	data
 01h	data complete
 02h	data incomplete
 03h	confirm
 04h	confirm send
 05h	confirm deallocate
 06h	send
--------N-6802--SF0C00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - RECEIVE IMMEDIATE
	AH = 02h subfn 0C00h
	DS:DX -> control block (see #2298)
Return: control block updated
SeeAlso: AH=02h/SF=0B00h,AH=02h/SF=0F00h

Format of APPC/PC "Receive_Immediate" control block:
Offset	Size	Description	(Table 2298)
 00h 12 BYTEs	reserved
 0Ch	WORD	0C00h (verb "Receive_Immediate" or "MC_Receive_Immediate")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	type of information received (see #2297)
 27h	BYTE	(MC_Receive_Immediate only) fill (0=buffer, 1=LL)
 28h	BYTE	Request_to_Send_Received (0=no, 1=yes)
 29h	WORD	maximum length
 2Bh	WORD	data length
 2Dh	DWORD	pointer to data
--------N-6802--SF0E00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - REQUEST TO SEND
	AH = 02h subfn 0E00h
	DS:DX -> control block (see #2299)
Return: control block updated
SeeAlso: AH=02h/SF=0F00h,AH=02h/SF=1000h

Format of APPC/PC "Request_to_Send" control block:
Offset	Size	Description	(Table 2299)
 00h 12 BYTEs	reserved
 0Ch	WORD	0E00h (verb "Request_to_Send" or "MC_Request_to_Send")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
--------N-6802--SF0F00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - SEND DATA
	AH = 02h subfn 0F00h
	DS:DX -> control block (see #2300)
Return: control block updated
SeeAlso: AH=02h/SF=0E00h,AH=02h/SF=1000h

Format of APPC/PC "Send_Data" control block:
Offset	Size	Description	(Table 2300)
 00h 12 BYTEs	reserved
 0Ch	WORD	0F00h (verb "Send_Data" or "MC_Send_Data")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	request to send received (0=no, 1=yes)
 27h	BYTE	00h
 28h	WORD	data length
 2Ah	DWORD	pointer to data
--------N-6802--SF1000-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - SEND ERROR
	AH = 02h subfn 1000h
	DS:DX -> control block (see #2301)
Return: control block updated
SeeAlso: AH=02h/SF=0F00h

Format of APPC/PC "Send_Error" control block:
Offset	Size	Description	(Table 2301)
 00h 12 BYTEs	reserved
 0Ch	WORD	1000h (verb "Send_Error" or "MC_Send_Error")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	request to send received (0=no, 1=yes)
 27h	BYTE	type (0=program, 1=SVC)
 28h	DWORD	00h
 2Ch	WORD	(MC_Send_Error only) LOG_DATA length
 2Eh	DWORD	(MC_Send_Error only) pointer to LOG_DATA
--------N-6802--SF1200-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - TEST
	AH = 02h subfn 1200h
	DS:DX -> control block (see #2302)
Return: control block updated
SeeAlso: AH=02h/SF=1300h

Format of APPC/PC "Test" control block:
Offset	Size	Description	(Table 2302)
 00h 12 BYTEs	reserved
 0Ch	WORD	1200h (verb "Test" or "MC_Test")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	(MC_Test only) test (0=posted, 1=request_to_send received)
Note:	error code has different interpretations for:
	0 posted data
	1 posted not data (primary return code = 0)
	1 bad TP_ID (primary return code = 1)
--------N-6802--SF1300-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - WAIT
	AH = 02h subfn 1300h
	DS:DX -> control block (see #2303)
Return: control block updated
SeeAlso: AH=02h/SF=1200h

Format of APPC/PC "Wait" control block:
Offset	Size	Description	(Table 2303)
 00h 12 BYTEs	reserved
 0Ch	WORD	1300h (verb "Wait")
 0Eh	BYTE	1 if MC_ (mapped conversation) form of verb
		0 if basic verb
 0Fh  5 BYTEs	reserved (0)
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) error code (see #2287,#2302)
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	(big-endian) conversation ID
 26h	BYTE	number of conversations to wait on
		Note: error codes have interpretations as for AH=02h/SF=1200h
--------N-6803--SF2400-----------------------
INT 68 - APPC/PC - TP STARTED
	AH = 03h subfn 2400h
	DS:DX -> control block (see #2304)
Return: control block updated

Format of APPC/PC "TP Started" control block:
Offset	Size	Description	(Table 2304)
 00h 12 BYTEs	reserved
 0Ch	WORD	2400h (verb "TP Started")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	00h
 1Ah  8 BYTEs	(big-endian) logical unit ID
 22h  8 BYTEs	(big-endian) TP ID
--------N-6803--SF2800-----------------------
INT 68 - APPC/PC - GET ALLOCATE
	AH = 03h subfn 2800h
	DS:DX -> control block (see #2305)
Return: control block updated

Format of APPC/PC "Get ALLOCATE" control block:
Offset	Size	Description	(Table 2305)
 00h 12 BYTEs	reserved
 0Ch	WORD	2800h (verb "Get ALLOCATE")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	00h
 1Ah  8 BYTEs	(big-endian) logical unit ID
 22h	BYTE	type (00h dequeue, 01h test)
 23h	DWORD	pointer to CREATE_TP record
--------N-6803--SF2A00-----------------------
INT 68 - APPC/PC - CHANGE LOGICAL UNIT
	AH = 03h subfn 2A00h
	DS:DX -> control block (see #2306)
Return: control block updated

Format of APPC/PC "Change Logical Unit" control block:
Offset	Size	Description	(Table 2306)
 00h 12 BYTEs	reserved
 0Ch	WORD	2A00h (verb "Change Logical Unit")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	00h
 1Ah  8 BYTEs	(big-endian) logical unit ID
 22h	DWORD	pointer to CREATE_TP_EXIT routine
		00000000h queue ALLOCATEs
		FFFFFFFFh reject incoming ALLOCATEs
 26h	DWORD	00000000h
 2Ah	DWORD	pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh= don't log errors
 2Eh	DWORD	00000000h
 32h	BYTE	maximum TPs
 33h	BYTE	00h stop QUEUE_ALLOCATEs
		01h resume QUEUE_ALLOCATEs
 34h	DWORD	pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh = no exit
 38h	DWORD	00000000h
--------N-6804-------------------------------
INT 68 - APPC/PC - TRANSACTION PROCESSING
	AH = 04h
	DS:DX -> control block (see #2307)
Return: control block updated

Format of APPC/PC control block:
Offset	Size	Description	(Table 2307)
 00h 12 BYTEs	reserved
 0Ch	WORD	verb (action)
		2500h TP_ENDED
		2900h TP_VALID
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h	WORD	00h
 1Ah  8 BYTEs	(big-endian) TP_ID
 22h	DWORD	-> CREATE_TP record (only if verb = 2900h)
--------N-6805-------------------------------
INT 68 - APPC/PC - TRANSFER MESSAGE DATA
	AH = 05h
	DS:DX -> control block (see #2308)
Return: control block updated

Format of APPC/PC "Transfer Message Data" control block:
Offset	Size	Description	(Table 2308)
 00h 12 BYTEs	reserved
 0Ch	WORD	1C00h (verb "Transfer Message Data")
 0Eh	BYTE	data type
		00h user defined
		01h NMVT
		02h alert subvectors
		03h PDSTATS subvectors
 0Fh  5 BYTEs	00h
 14h	DWORD	(big-endian) return code (see #2273)
 18h 12 BYTEs	00h
 24h	BYTE	flags (see #2309)
 25h	BYTE	00h
 26h	WORD	length of data
 28h  N BYTEs	data

Bitfields for APPC/PC message transfer flags:
Bit(s)	Description	(Table 2309)
 0	don't add correlation subvector
 1	don't add product set ID subvector
 2	don't do SYSLOG
 3	don't send SSCP_PU_SESSION
SeeAlso: #2308
--------N-6806-------------------------------
INT 68 - APPC/PC - CHANGE NUMBER OF SESSIONS
	AH = 06h
	DS:DX -> control block (see #2310)
Return: control block updated

Format of APPC/PC "Change Number of Sessions" control block:
Offset	Size	Description	(Table 2310)
 00h 12 BYTEs	reserved
 0Ch	WORD	1500h (verb "Change Number of Sessions")
 0Eh  6 BYTEs	00h
 14h	WORD	(big-endian) primary return code (see #2286)
 16h	DWORD	(big-endian) secondary return code (see #2273,#2311)
 1Ah  8 BYTEs	(big-endian) logical unit ID
 22h  8 BYTEs	blanks
 2Ah  8 BYTEs	(big-endian) partner logical unit name
 32h  8 BYTEs	(big-endian) mode name
 3Ah	BYTE	bit 7: use MODE_NAME_SELECT_ALL rather than MODE_NAME
		bit 6: set negotiable values
 3Bh	BYTE	partner logical unit mode session limit
 3Ch	BYTE	minimum CONWINNERS_SOURCE
 3Dh	BYTE	maximum CONWINNERS_TARGET
 3Eh	BYTE	automatic activation
 3Fh	BYTE	00h
 40h	BYTE	flags
		bit 7: drain target
		bit 6: drain source
		bit 5: target responsible, not source

(Table 2311)
Values for secondary return code (see also AH=01h/SF=1B00h):
 0000h	accepted
 0001h	negotiated
 0003h	bad logical unit ID
 0004h	allocation failure, no retry
 0005h	allocation failure, retry
 0151h	can't raise limits
 0153h	all modes must reset
 0154h	bad SNASVCMG limits
 0155h	minimum greater than total
 0156h	mode closed (primary return code = 1)
	CNOS mode closed (primary return code = 18h)
 0157h	bad mode name (primary return code = 1)
	CNOS bad mode name (primary return code = 18h)
 0159h	reset SNA drains
 015Ah	single not SRC response
 015Bh	bad partner logical unit
 015Ch	exceeds maximum allowed
 015Dh	change SRC drains
 015Eh	logical unit detached
 015Fh	CNOS command race reject
--------N-6807-------------------------------
INT 68 - APPC/PC - PASSTHROUGH
	AH = 07h
	DS:DX -> control block (format depends on application subsystem)
Return: control block updated
SeeAlso: AH=FFh
----------684300-----------------------------
INT 68 U - ??? - INSTALLATION CHECK???
	AX = 4300h
Return: AX = F386h if ???
	???
Note:	called by Novell DOS 7.0 EMM386.EXE
SeeAlso: AX=4400h,INT 41/AX=004Fh
----------684400-----------------------------
INT 68 U - ???
	AX = 4400h
	BX = ???
	CX = ???
	DX = ???
	DS:SI = real-mode address of protected-mode GDT
	ES:DI = real-mode address of protected-mode IDT
Return: ???
Note:	called by Novell DOS 7.0 EMM386.EXE if AX=4300h returns AX=F386h
SeeAlso: AX=4300h
----------6847-------------------------------
INT 68 - MS Windows debugging kernel - OUTPUT STRING
	AH = 47h
	ES:SI -> string
Notes:	output a string (to inform a debugger of some events)
	KERNEL outputs "Windows Kernel Entry\r\n" on startup
SeeAlso: INT 41/AX=0012h
--------N-68FA-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE APPC
	AH = FAh
	AL bit 0 = new state (0 enable, 1 disable)
SeeAlso: AH=FDh,INT 68"Novell"
--------N-68FB-------------------------------
INT 68 - APPC/PC - CONVERT
	AH = FBh
	DS:DX -> control block (see #2312)
Return: control block updated

Format of APPC/PC "CONVERT" control block:
Offset	Size	Description	(Table 2312)
 00h 12 BYTEs	reserved
 0Ch	WORD	1A00h (verb "CONVERT")
 0Eh  6 BYTEs	00h
 14h	DWORD	(big-endian) return code
 18h	BYTE	conversion
		00h ASCII to EBCDIC
		01h EBCDIC to ASCII
 19h	BYTE	character set
		00h AE
		01h A
		02h G
 1Ah	WORD	length of string to convert
 1Ch	DWORD	pointer to source
 20h	DWORD	pointer to target
--------N-68FC-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE MESSAGE TRACING
	AH = FCh
	AL = new state
	    00h disable tracing
	    01h enable tracing
		DX = number of bytes to keep (0=all)
SeeAlso: AH=FDh,AH=FEh
--------N-68FD-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE API VERB TRACING
	AH = FDh
	AL = new tracing state (00h disabled, 01h enabled)
SeeAlso: AH=FAh,AH=FCh,AH=FEh
--------N-68FE-------------------------------
INT 68 - APPC/PC - SET TRACE DESTINATION
	AH = FEh
	AL = trace destinations (see #2313)
	DS:DX -> trace stats record if AL bit 0 set (see #2314)
SeeAlso: AH=FCh,AH=FDh

Bitfields for trace destinations:
Bit(s)	Description	(Table 2313)
 0	storage (DS:DX -> trace stats record)
 1	display
 2	file (trace written to file OUTPUT.PC)
 3	printer

Format of APPC/PC Trace Statistics Record:
Offset	Size	Description	(Table 2314)
 00h	DWORD	pointer to storage trace buffer
 04h	WORD	max number of 80-byte records in trace
 06h	WORD	(high-order byte first!) current record number (must init to 0)
 08h	DWORD	(high-order byte first!) number of records written (init to 0)
 0Ch	DWORD	reserved
Note:	do not move record while trace is active
--------N-68FF-------------------------------
INT 68 - APPC/PC - SET PASSTHROUGH
	AH = FFh
	DS:DX -> passthrough exit routine
SeeAlso: AH=07h,INT 68"Novell"
--------b-69---------------------------------
INT 69 - Zenith AT BIOS - ???
Note:	called by INT 09 handler
--------h-69---------------------------------
INT 69 C - HP Vectra AT - IRQ17 - KEYBOARD OUTPUT-BUFFER-FULL SERVICE ROUTINE
SeeAlso: INT 09"IRQ1",INT 68"HP Vectra",INT 6A"HP Vectra"
--------N-690100-----------------------------
INT 69 - DECnet DOS CTERM - INSTALLATION CHECK
	AX = 0100h
Return: AL = FFh if present
SeeAlso: AX=010Fh
--------N-690101-----------------------------
INT 69 - DECnet DOS CTERM - SEND BYTE
	AX = 0101h
	BL = character
	DX = session handle
Return: AH >= 80h on error
SeeAlso: AX=0102h
--------N-690102-----------------------------
INT 69 - DECnet DOS CTERM - READ BYTE
	AX = 0102h
	DX = session handle
Return: AH >= 80h on error
	AH < 80h="" if="" successful="" al="character" seealso:="" ax="0101h" --------n-690103-----------------------------="" int="" 69="" -="" decnet="" dos="" cterm="" -="" status="" ax="0103h" dx="session" handle="" return:="" ah="" status="" flags="" (see="" #2315)="" al="reason" code="" if="" decnet="" error="" (see="" #2316)="" seealso:="" ax="0104h" bitfields="" for="" decnet="" dos="" cterm="" status="" flags:="" bit(s)="" description="" (table="" 2315)="" 7="" session="" has="" been="" aborted="" 6="" decnet="" error="" 1="" trace="" data="" available="" 0="" receive="" data="" available="" (table="" 2316)="" values="" for="" reason="" code:="" 00h="" normal="" disconnect="" 01h="" unknown="" message="" from="" host="" 02h="" protocol="" violation="" from="" host="" 03h="" could="" not="" process="" the="" initiate="" message="" 04h="" error="" receiving="" message="" from="" host="" 05h="" error="" sending="" message="" to="" host="" 06h="" error="" checking="" for="" message="" from="" host="" 07h="" remote="" system="" does="" not="" support="" cterm="" 08h="" remote="" system="" does="" not="" support="" correct="" protocol="" version="" 09h="" did="" not="" receive="" bind="" message="" from="" host="" 0ah="" could="" not="" send="" bind="" message="" to="" host="" 0bh="" no="" more="" sessions="" available="" 0ch="" session="" does="" not="" exist="" 0dh="" not="" enough="" memory="" to="" complete="" operation="" 0eh="" connection="" has="" broken="" index:="" error="" codes;decnet="" dos="" cterm|decnet="" dos="" cterm;error="" codes="" --------n-690104-----------------------------="" int="" 69="" -="" decnet="" dos="" cterm="" -="" decnet="" status="" ax="0104h" dx="session" handle="" return:="" ax="reason" code="" (see="" #2316)="" note:="" use="" this="" call="" when="" ax="0103h" returns="" a="" decnet="" error="" seealso:="" ax="0103h" --------n-690105-----------------------------="" int="" 69="" -="" decnet="" dos="" cterm="" -="" open="" session="" ax="0105h" ds:bx="" -=""> ASCIZ node name
	ES:DX -> buffer for session control block (see #2332 at INT 6A/AH=D0h)
Return: AX <= 0="" on="" error="" ax=""> 0 session handle
SeeAlso: AX=0103h,AX=0106h,AX=010Ah
--------N-690106-----------------------------
INT 69 - DECnet DOS CTERM - CLOSE SESSION
	AX = 0106h
	DX = session handle
Return: AH = status
	    00h good close
	    other error code (see #2316)
SeeAlso: AX=0103h,AX=0105h
--------N-69010A-----------------------------
INT 69 - DECnet DOS CTERM - GET SESSION CONTROL BLOCK SIZE
	AX = 010Ah
Return: AX = length of session control block in bytes
SeeAlso: AX=0105h
--------N-69010B-----------------------------
INT 69 - DECnet DOS CTERM - GET DECnet SOCKET
	AX = 010Bh
	DX = session handle
Return: AX > 0	DECnet socket for the session
	AX = 0	no match for handle
--------N-69010F-----------------------------
INT 69 - DECnet DOS CTERM - DEINSTALL CTERM
	AX = 010Fh
Return: AH = status
		 00h successful uninstall
	    other error code (see #2316)
Note:	CTERM must have been the last TSR loaded in order to deinstall it
SeeAlso: AX=0100h
Index:	uninstall;DECnet DOS CTERM
--------N-690A-------------------------------
INT 69 - DECnet DOS 2.1+ - DATA LINK LAYER
	AH = 0Ah
	AL = function number (see #2317)
	ES:BX -> Datalink Communication Block (see #2319)
Return: AX = status (see #2318)
SeeAlso: INT 6D"DECnet"

(Table 2317)
Values for DECnet DOS Data Link Layer function:
 00h	initialize
 01h	open portal
 02h	close portal
 03h	enable multicast address
 04h	disable multicast address
 05h	transmit
 06h	request transmit buffer
 07h	deallocate transmit buffer
 08h	read channel status
 09h	read datalink portal list
 0Ah	read information about a datalink portal
 0Bh	read and/or clear counters
 0Ch	request to boot from a network server
 0Dh	enable Ethernet channel
 0Eh	disable Ethernet channel
 0Fh	start MOP/send a System ID message
 10h	stop MOP
 11h	get DECPARM
 12h	set DECPARM
 13h	external loopback

(Table 2318)
Values for DECnet DOS Data Link Layer status:
 00h	successful
 01h	hardware failed to initialize
 02h	channel state was not off (must be off to execute that command)
 03h	channel state is off (must be on to execute that command)
 04h	address not set
 05h	hardware missing
 06h	buffer too small
 07h	no more buffers available
 08h	no more resources available
 09h	promiscuous receiver active
 0Ah	non exclusive
 0Bh	unrecognized portal
 0Ch	protocol type in use
 0Dh	not a valid Multicast address
 0Eh	outstanding calls
 0Fh	hardware doesn't support receiving bad frames
 10h	none outstanding
 11h	no events
 12h	broken
 13h	buffer quota exceeded
 14h	already initialized
 15h	loopback failure
Index:	error codes;DECnet DOS|DECnet DOS;error codes

Format of Datalink Communication Block:
Offset	Size	Description	(Table 2319)
 00h	WORD	portal ID
 02h  6 BYTEs	source address
 08h  6 BYTEs	destination address
 0Eh	DWORD	buffer pointer
 12h	WORD	buffer length
 14h	WORD	operation
 16h	BYTE	pad flag (used on open)
		00h no pad
		01h pad
 17h	BYTE	mode flag (used on open)
		00h 802.3
		01h Ethernet
		02h promiscuous
 18h	DWORD	line status change function
 1Ch	DWORD	received data function
 20h	DWORD	transmitted data function
 24h	BYTE	maximum outstanding transmits/receives
 25h  2 BYTEs	protocol type
 27h	WORD	buffers lost
--------N-694001-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AX = 4001h
Return: CF clear
	AX = 0000h
	ES:SI -> ???
Range:	INT 60 to INT 7F, selected by configuration
Note:	the signature "SYSV" immediately before the interrupt handler serves
	  as the installation check
SeeAlso: AX=4002h
Index:	installation check;10NET SYSSVC
--------N-694002-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AX = 4002h
	???
Return: ???
Range:	INT 60 to INT 7F, selected by configuration
Note:	the signature "SYSV" immediately before the interrupt handler serves
	  as the installation check
--------N-694101-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AX = 4101h
Return: CF clear
	ES:SI -> ???
Range:	INT 60 to INT 7F, selected by configuration
SeeAlso: AX=4102h,AX=4103h,AX=4104h
--------N-694102-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AX = 4102h
	???
Return: ???
--------N-694103-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AX = 4103h
	???
Return: ???
--------N-694104-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AX = 4104h
	???
Return: ???
--------N-6942-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AH = 42h
	AL = function (01h-14h)
	???
Return: ???
Range:	INT 60 to INT 7F, selected by configuration
--------N-6943-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AH = 43h
	AL = function (01h-05h)
	???
Return: ???
--------N-6944-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
	AH = 44h
	AL = function (01h-03h)
	???
Return: ???
Range:	INT 60 to INT 7F, selected by configuration
--------N-6949-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - BUG
	AH = 49h
Note:	due to a fencepost error, this function branches to hyperspace
SeeAlso: AX=4001h,AH=FFh
--------G-696996-----------------------------
INT 69 - ISR.COM v1.00 - SPECIFY INTERRUPT HANDLER
	AX = 6996h
	DS:DX -> interrupt handler or 0000h:0000h to disable
Return: AX = 9669h
Program: ISR (Interrupt Service Reflector) is a TSR by Rich Bono which permits
	  a program to provide hardware interrupt handlers even while being
	  debugged with a debugger that swaps interrupt vectors during
	  debugging.
Note:	the interrupt vector which is to be reflected is set at installation
	  time and cannot be changed
--------N-69FF-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - SIGNAL SYSTEM ERROR
	AH = FFh
Return: never???
Desc:	displays "System Error" message and register dump, then halts system
Range:	INT 60 to INT 7F, selected by configuration
Notes:	the signature "SYSV" immediately before the interrupt handler serves
	  as the installation check
SeeAlso: AX=4001h,AH=49h
--------U-6A---------------------------------
INT 6A - OPTHELP.COM
Program: OPTHELP is an optionally-resident help system for SLR Systems's OPTASM
	  assembler
Range:	INT 60h to INT 7Fh, selected by configuration
--------N-6A---------------------------------
INT 6A - DECnet DOS - LOCAL AREA TRANSPORT PROGRAM
Note:	the installation check consists of testing for a signature area
	  immediately preceding the interrupt handler (see #2320)
SeeAlso: AH=01h/DH=FFh,INT 6B"DECnet",INT 6D"DECnet"
Index:	installation check;DECnet DOS Local Area Transport

Format of DECnet DOS signature area:
Offset	Size	Description	(Table 2320)
 -5	BYTE	major version number
 -4	BYTE	minor version number
 -3   3 BYTEs	signature (ASCII "LAT")
--------h-6A---------------------------------
INT 6A C - HP Vectra AT - IRQ18 - RESERVED HARDWARE INTERRUPT
SeeAlso: INT 0A"IRQ0",INT 69"HP Vectra",INT 6B"HP Vectra"
--------N-6A0000-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - INSTALLATION CHECK
	AX = 0000h
Return: AX = 4357h ('CW')
Program: Super-TCP is a TCP/IP protocol stack by Frontier Technologies Corp.
Note:	an alternate installation check is to test for the ASCIZ signature
	  "FTC Super-TCP" three bytes past the interrupt handler
SeeAlso: AX=0001h,AX=0002h,AX=000Fh,AX=0010h,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 61"PCTCP",INT 62/AH=00h"ETHDEV"
--------N-6A0001-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - ???
	AX = 0001h
	BH = function number
	    01h ???
		DS:SI -> ??? 24-byte record1 (see #2322)
		ES:DI -> buffer containing ???
	    02h ???
		DS:SI -> ??? 18-byte record2 (see #2323)
		ES:DI -> buffer containing ???
	    04h ???
		BL = subfunction
		    01h
			DS:SI -> ??? 28-byte record3 (see #2324)
			ES:DI -> buffer containing ???
		    02h
			DS:SI -> ??? 28-byte record3 (see #2324)
			ES:DI -> buffer containing ???
		    03h
			DS:SI -> ??? 28-byte record3 (see #2324)
		    else Return: AX = 0005h
	    05h ???
		DS:SI -> ??? 20-byte record4 (see #2325)
		ES:DI -> buffer containing ???
	    06h ???
		BL = subfunction
		    01h
			DS:SI -> ??? 40-byte record5 (see #2326)
		    02h
			DS:SI -> ??? 20-byte record6 (see #2327)
			ES:DI -> ???
		    03h
			DS:SI -> ??? 20-byte record6 (see #2327)
		    04h
			DS:SI -> ??? 46-byte record7 (see #2328)
		    else Return: AX = 0005h
	    11h ???
		DS:SI -> ??? 28-byte record8 (see #2329)
		ES:DI -> ???
Return: AX = function status (see #2321)
SeeAlso: AX=0000h

(Table 2321)
Values for Super-TCP function status:
 0000h	successful
 0005h	unsupported function
 000Ah	out of memory

Format of record1:
Offset	Size	Description	(Table 2322)
 00h  4 BYTEs	???
 04h	WORD	size of ES:DI buffer
 06h 18 BYTEs	???

Format of record2:
Offset	Size	Description	(Table 2323)
 00h  4 BYTEs	???
 04h	WORD	size of ES:DI buffer
 06h 12 BYTEs	???

Format of record3:
Offset	Size	Description	(Table 2324)
 00h  2 BYTEs	???
 02h	WORD	???
 04h	WORD	size of ES:DI buffer
 06h	WORD	???
 08h	WORD	operation number (for function 0401h)
 0Ah	DWORD	-> ???
 0Eh	WORD	(ret) ???
 10h 12 BYTEs	???

Format of record4:
Offset	Size	Description	(Table 2325)
 00h  4 BYTEs	???
 04h	WORD	size of ES:DI buffer
 06h 14 BYTEs	???

Format of record5:
Offset	Size	Description	(Table 2326)
 00h	BYTE	operation??? (00h-07h)
 01h	BYTE	???
 02h	WORD	(ret) ???
 04h	DWORD	-> ???
 08h  4 BYTEs	???
 0Ch	DWORD	-> ??? or 0000h:0000h
 10h 16 BYTEs	???
 20h	DWORD	???
 24h  4 BYTEs	???

Format of record6:
Offset	Size	Description	(Table 2327)
 00h  4 BYTEs	???
 04h	WORD	size of ES:DI buffer
 06h 14 BYTEs	???

Format of record7:
Offset	Size	Description	(Table 2328)
 00h	WORD	???
 02h	WORD	???
 04h	WORD	???
 06h 40 BYTEs	???

Format of record8:
Offset	Size	Description	(Table 2329)
 00h  4 BYTEs	???
 04h	WORD	size of ES:DI buffer
 06h  6 BYTEs	???
 0Ch	WORD	(ret) ???
 0Eh	WORD	operation??? (01h-03h)
 10h 12 BYTEs	???
--------N-6A0002-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - ???
	AX = 0002h
	BX = ??? (zero/nonzero)
	CX = ??? identifier (see AX=0004h)
	DS:SI -> 40-byte buffer for ??? or 0000h:0000h
	ES:DI -> buffer for ??? or 0000h:0000h
Return: AX = 0000h (successful) ???
	BL = ???
	BH = ???
	CX = ???
	DX = ???
--------N-6A0003-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - GET ??? DATA AREA
	AX = 0003h
Return: CX:DX -> data area (see #2330)

Format of Super-TCP data area:
Offset	Size	Description	(Table 2330)
 00h  2 BYTEs	???
 02h	DWORD	original INT 6A vector
 06h  2 BYTEs	???
 08h 96 BYTEs	array of 16 6-byte ???
 68h	WORD	number of elements of above array in use
 6Ah	WORD	???
	???
--------N-6A0004-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - ALLOCATE ???
	AX = 0004h
	CX = size in ???
Return: AX = 0000h (successful)
	CX = DX = ???
SeeAlso: AX=0005h,AX=000Fh
--------N-6A0005-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - FREE/CLOSE ???
	AX = 0005h
	CX = ??? identifier (from AX=0004h)
Return: AX = status (0000h successful, FFFFh failed)
SeeAlso: AX=0004h,AX=000Fh
--------N-6A000F-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - FREE/CLOSE ALL ???
	AX = 000Fh
Return: AX = 0000h (successful)
SeeAlso: AX=0000h,AX=0004h,AX=0005h
--------N-6A0010-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - UNINSTALL
	AX = 0010h
Return: AX = status
	    0000h successful
	    0002h can't uninstall, interrupt vector hooked by another program
Program: Super-TCP is a TCP/IP protocol stack by Frontier Technologies Corp.
Note:	if AX is not one of the values listed here on entry, Super-TCP
	  returns AX=FFFEh
SeeAlso: AX=0000h
--------N-6A01--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - SEND BYTE
	AH = 01h
	DH = FFh
	AL = character
	DL = handle
Return: AH >= 80h on error
SeeAlso: AH=02h
--------N-6A02--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - READ BYTE
	AH = 02h
	DH = FFh
	DL = handle
Return: AH < 80h="" if="" successful="" al="character" ah="">= 80h on error
SeeAlso: AH=01h
--------N-6A03--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - STATUS
	AH = 03h
	DH = FFh
	DL = handle
Return: AH = status flags (see #2331)

Bitfields for DECnet DOS LAT status flags:
Bit(s)	Description	(Table 2331)
 5	transmit buffer empty
 3	session in start state
 2	session not active
 1	unable to queue transmit data
 0	receive data available
--------N-6AD0--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - OPEN SESSION
	AH = D0h
	DH = FFh
	AL = password flag
	    FFh no password
	    0Fh password at ES:DI
	ES:BX -> LAT session control block (see #2332)
	ES:DI -> 16-byte blank-padded password (optional)
Return: AH = 00h success
	    DL = handle
SeeAlso: AX=D000h

Format of LAT Session Control Block:
Offset	Size	Description	(Table 2332)
 00h 18 BYTEs	service name
 12h 18 BYTEs	node name (future use)
 24h 18 BYTEs	port name (future use)
 36h	DWORD	-> session stopped post routine
 3Ah	DWORD	-> service table overflow post routine
 3Eh	DWORD	-> transmit post routine
 42h	DWORD	-> receive post routine
 46h	WORD	session status
		04h circuit failure
		08h stop slot received
---LAT v???---
 48h	WORD	slot state (LAT driver use)
 4Ah	WORD	local credits (LAT driver use)
 4Ch	DWORD	-> VCB (LAT driver use)
 50h	WORD	backward slot (LAT driver use)
 52h	WORD	forward slot (LAT driver use)
 54h	WORD	remote slot ID (LAT driver use)
 56h	WORD	local slot ID (LAT driver use)
 58h	WORD	slot byte count (LAT driver use)
 5Ah	BYTE	remote credits (LAT driver use)
 5Bh 255 BYTEs	transmitted data slot
15Ah	BYTE	number of receive data slots (4 recommended)
15Bh	BYTE	number of occupied slots
15Ch	BYTE	index of next receive slot to use
15Dh	BYTE	index of current receive slot
15Eh	WORD	pointer to first received character
160h  N WORDs	pointers to receive slots (buffers); each is 259 bytes
     259N BYTEs	buffers
Note:	set post routines to 0000h:0000h if polled operation will be used
---LAT v4.1.17---
 48h	WORD	session state (LAT driver use)
 4Ah	BYTE	local credits (LAT driver use)
 4Bh	DWORD	-> VCB (LAT driver use)
 4Fh	WORD	backward slot (LAT driver use)
 51h	WORD	forward slot (LAT driver use)
 53h	BYTE	remote slot ID (LAT driver use)
 54h	BYTE	local slot ID (LAT driver use)
 55h	BYTE	slot byte count (LAT driver use)
 56h	BYTE	remote credits (LAT driver use)
 57h 255 BYTEs	transmitted data slot
156h	BYTE	number of receive data slots (4 recommended)
157h	BYTE	number of occupied slots
158h	BYTE	index of next receive slot to use
159h	BYTE	index of current receive slot
15Ah	WORD	pointer to first received character
15Ch  N WORDs	pointers to receive slots (buffers); each is 259 bytes
     259N BYTEs	buffers
Note:	set post routines to 0000h:0000h if polled operation will be used
--------N-6AD000DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - CLOSE SESSION
	AX = D000h
	DH = FFh
	DL = handle
Return: AX = status (see #2333)
SeeAlso: AH=D0h

(Table 2333)
Values for DECnet DOS LAT function status:
 0000h	successful
 0001h	no such session
 0002h	session not running, try again later
--------N-6AD100DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - SEND BREAK
	AX = D100h
	DH = FFh
	DL = handle
Return: AX = 0000h if successful
	AH bit 7 set if unable to send break
--------N-6AD300DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - RESET LAT COUNTERS
	AX = D300h
	DH = FFh
SeeAlso: AX=D400h
--------N-6AD400DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - COPY LAT COUNTERS
	AX = D400h
	DH = FFh
	CX = buffer size
	ES:BX -> buffer for LAT counters
Return: AX = status
	    0000h counters copied into buffer
	    FFFFh buffer too small
SeeAlso: AX=D300h
--------N-6AD500DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - GET NEXT LAT SERVICE NAME
	AX = D500h
	DH = FFh
	ES:BX -> 17-byte buffer for name
Return: AH = 00h if successful
	   ES:BX buffer filled
	AX = FFFFh if end of table or no name available
Notes:	use this function to get the names of the hosts on the network
	successive calls are necessary to get all names
SeeAlso: AX=D600h
--------N-6AD600DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - LAT SERVICE TABLE RESET
	AX = D600h
	DH = FFh
Return: AX = number of service table entries
	BX = status
	    0000h service table has not overflowed
	    FFFFh service table has overflowed
SeeAlso: AX=D500h
--------N-6B---------------------------------
INT 6B - DECnet DOS - PORT DRIVER
Note:	the installation check consists of testing for a signature area
	  (see #2334) immediately preceding the interrupt handler
SeeAlso: INT 6A"DECnet",INT 6C"DECnet"
Index:	installation check;DECnet DOS Port Driver

Format of DECnet DOS signature area:
Offset	Size	Description	(Table 2334)
 -5	BYTE	major version number
 -4	BYTE	minor version number
 -3   3 BYTEs	signature (ASCII "PDV")
--------v-6B---------------------------------
INT 6B - VIRUS - "Saddam" - ORIGINAL INT 21h VECTOR
SeeAlso: INT 21/AX=FFFFh,INT 61"VIRUS",INT 70"VIRUS"
--------h-6B---------------------------------
INT 6B C - HP Vectra AT - IRQ19 - RESERVED HARDWARE INTERRUPT
SeeAlso: INT 0B"IRQ0",INT 6A"HP Vectra",INT 6C"HP Vectra"
--------S-6B0000-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED WRITE
	AX = 0000h
	CX = length
	ES:BX -> buffer
Return: CX = number of bytes written
Program: NASI is Novell's NetWare Asynchronous Services Interface (purchased
	  from Network Products Corp, who call it NCSI) which runs on
	  workstations; NACS is the NetWare Asynchronous Communications
	  Services module which runs on servers
Notes:	the installation check consists of testing for the signature string
	  "NCSI" three bytes past the interrupt handler; see also AH=02h.
	  As of version 3.0, Novell's NASI can be distinguished from NPC's
	  NCSI by the presence of an 'A' immediately following the signature
	this function is also supported by TelAPI, NPC NCSI, and Connection
	  Manager CLIENT.EXE; for TelAPI, nonzero values in AL specify a
	  connection ID
	Connection Manager returns CF set/AL=FFh if called while an INT 6B
	  call is already in progress
SeeAlso: AX=0100h,AH=18h,INT 14/AH=19h,INT 14/AH=E3h
--------S-6B0100-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED READ
	AX = 0100h
	CX = length of buffer
	ES:BX -> buffer
Return: CX = number of bytes read
Note:	also supported by TelAPI and NPC NCSI; for TelAPI, nonzero values in
	  AL specify a connection ID
SeeAlso: AX=0000h,AH=19h,INT 14/AH=18h,INT 14/AH=E2h,INT 14/AX=FF02h
--------S-6B02-------------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - INSTALL CHECK
	AH = 02h
	AL nonzero
Return: AL = 00h if present and OK
Note:	this function is also supported by TelAPI and NPC NCSI
SeeAlso: AX=0700h
--------S-6B0600-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - CONTROL
	AX = 0600h
	CX = command
	    02h send break
	    04h disconnect
	    06h hold
Return: CF clear if successful
	    AL = 00h
	CF set on error
		 AX < 0="" note:="" this="" function="" is="" also="" supported="" by="" telapi="" and="" npc="" ncsi="" --------s-6b0700-----------------------------="" int="" 6b="" -="" novell="" nasi/nacs,="" ungermann-bass="" net="" one="" serial="" i/o="" -="" get="" status="" ax="0700h" return:="" ch=""><> 00h if connection active
Notes:	this function is also supported by TelAPI and NPC NCSI
	Novell TelAPI returns CX=FF01h and CF clear
SeeAlso: AH=02h,AH=10h
--------N-6B08-------------------------------
INT 6B - TelAPI - ???
	AH = 08h
Return: CF clear
	    AL = 00h
	    CX = 0000h
Note:	this function also clears ??? flag
SeeAlso: INT 14/AX=FF00h
--------S-6B10-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - GET STATUS
	AH = 10h
	AL = connection ID (Novell TELAPI.EXE)
	CX = ???
Return: CF clear if successful
		 CL = ???
	    CH = ???
	CF set on error
	???
Notes:	this function is also supported by TelAPI
	when shelled out to an external protocol from Novell NASI, the circuit
	  whose status indicates that it is connected is the currently active
	  circuit
SeeAlso: AX=0700h,AH=12h,AH=1Fh
--------S-6B11--DX0001-----------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - ALLOCATE A VIRTUAL CIRCUIT
	AH = 11h
	DX = 0001h
	AL = 00h
	ES:BX -> service name string (8 characters, blank-padded)
Return: CF clear if successful
	    AL = virtual circuit number allocated (01h for Novell TELAPI.EXE)
	    CL = ??? (01h for Novell TELAPI.EXE)
	    CH = ??? (01h for Novell TELAPI.EXE)
	CF set on error
	    ???
Note:	this function is also supported by TelAPI
SeeAlso: AH=12h,AH=15h,AH=16h,AH=17h,AH=18h
--------S-6B12-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - VIRTUAL CIRCUIT STATUS
	AH = 12h
	AL = virtual circuit number
	CL = ???
	ES:BX -> ???
Return: ???
Note:	this function is also supported by TelAPI
SeeAlso: AH=10h,AH=15h,AH=1Ah,AH=1Bh,AH=1Fh
--------S-6B13-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE REQUEST/REPLY SERVICE NAME
	AH = 13h
	AL = virtual circuit number
	CL = direction (00h get, nonzero set)
	ES:BX -> buffer for/containing service name
Return: ???
Note:	this function is also supported by TelAPI
SeeAlso: AH=14h,AH=15h
--------S-6B14-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE SERVICE ADDRESS
	AH = 14h
	AL = virtual circuit number
	ES:BX -> buffer for/containing service address
Return: ???
Note:	this function is also supported by TelAPI, which only supports
	  retrieving the address
SeeAlso: AH=13h,AH=15h,AH=21h
--------S-6B15-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE VIRTUAL CIRCUIT CONFIG
	AH = 15h
	AL = virtual circuit number
	CL = direction (00h get, nonzero set)
	ES:BX -> buffer for/containing virtual circuit config (see #2335)
Return: ES:BX buffer filled
Note:	this function is also supported by TelAPI
SeeAlso: AH=13h"NCSI",AH=14h"NCSI"

Format of virtual circuit configuration:
Offset	Size	Description	(Table 2335)
 00h	WORD	buffer length
 02h	WORD	port ID
 04h	WORD	receive rate
 06h	WORD	receive word length
 08h	WORD	receive stop bits
 0Ah	WORD	receive parity
 0Ch	WORD	transmit rate
 0Eh	WORD	transmit word length
 10h	WORD	transmit stop bits
 12h	WORD	transmit parity
 14h	WORD	DTR
 16h	WORD	RTS
--------S-6B16-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - LOG AND/OR INITIALIZE VIRTUAL CIRCUIT
	AH = 16h
	AL = virtual circuit number
	CL = ??? switch (00h, ???)
Return: CF clear if successful
	    AL = virtual circuit number
	CF set on error
	    ???
Note:	this function is also supported by TelAPI, which always returns CF
	  clear and AL=00h
SeeAlso: AH=11h,AH=12h,AH=17h
--------S-6B17-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - DISCONNECT A VIRTUAL CIRCUIT
	AH = 17h
	AL = virtual circuit number
Return: CF clear if successful
	CF set on error
	???
Note:	this function is also supported by TelAPI, which always returns CF
	  clear and AL=00h
SeeAlso: AH=11h,AH=16h
--------S-6B18-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - WRITE DATA ON A VIRTUAL CIRCUIT
	AH = 18h
	AL = virtual circuit number
	CX = number of characters to send
	ES:BX -> buffer containing characters to be sent
Return: CF clear if successful
	CF set on error
	???
Note:	this function is also supported by TelAPI, which always returns CF
	  clear and AL=30h
SeeAlso: AX=0000h,AH=12h,AH=19h
--------S-6B19-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - READ DATA ON A VIRTUAL CIRCUIT
	AH = 19h
	AL = virtual circuit number
	CX = number of characters to read
	ES:BX -> buffer for received characters
Return: CX = 0000h if failed
	CX = nonzero (possibly number of characters received) if successful
Note:	this function is also supported by TelAPI
SeeAlso: AX=0100h,AH=12h,AH=18h
--------S-6B1A-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - RECEIVE STATUS
	AH = 1Ah
	???
Return: ???
SeeAlso: AH=12h,AH=1Bh
--------S-6B1B-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - TRANSMIT STATUS
	AH = 1Bh
	???
Return: ???
SeeAlso: AH=12h,AH=1Ah
--------S-6B1C-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - CLEAR RECEIVE BUFFER
	AH = 1Ch
	AL = circuit number
Return: nothing
SeeAlso: AH=1Dh"NCSI",AH=1Eh"NCSI"
--------S-6B1D-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - TRANSMIT BUFFER CONTROL
	AH = 1Dh
	???
Return: ???
SeeAlso: AH=1Ch,AH=1Eh
--------S-6B1E-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - ISSUE CONTROL REQUEST
	AH = 1Eh
	???
Return: ???
SeeAlso: AH=1Ch,AH=1Dh
--------S-6B1F-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - EXTERNAL STATUS
	AH = 1Fh
	???
Return: ???
SeeAlso: AH=10h,AH=12h
--------S-6B20-------------------------------
INT 6B - Connection Manager CLIENT.EXE - ???
	AH = 20h
	???
Return: ???
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
	  serial ports over an IPX or NetBIOS-based network
Note:	CLIENT.EXE returns CF set/AL=F9h if AH is not 00h to 21h on entry
--------S-6B21-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - QUERY NAME SERVICE
	AH = 21h
	AL = virtual circuit number
	CL = ??? (00h or 01h)
	ES:BX -> buffer for service name structure (see #2336)
Return: CF clear if successful
	    ES:BX buffer filled
	CF set on error
Notes:	a program should call this function after allocating a virtual circuit
	  and check that the general name matches the requested service
	prior to version 3.0, Novell's NASI returned the first available port;
	  v3.0+ returns the first port found--check the returned status to
	  determine whether the port is available
SeeAlso: AH=14h"NCSI"

Format of NCSI service name structure:
Offset	Size	Description	(Table 2336)
 00h	WORD	buffer length
 02h  8 BYTEs	service name
 0Ah  8 BYTEs	general name
 12h  8 BYTEs	specific name
 1Ah  4 BYTEs	???
---Novell NASI v3.0+ ---
 1Eh	BYTE	port number
 1Fh	BYTE	port status
		00h idle (available)
		01h allocated (available)
		02h connected
		03h on hold
----------6B6B-------------------------------
INT 6B - Tandy SCHOOLMATE PLUS - API
	AH = 6Bh
	AL = E0h to FFh
Note:	details not yet available
----------6C---------------------------------
INT 6C - system resume vector (CONVERTIBLE)
----------6C---------------------------------
INT 6C - DOS 3.2 Realtime Clock update
--------N-6C---------------------------------
INT 6C - DECnet DOS network scheduler
Notes:	the installation check consists of testing for a signature area
	  immediately preceding the interrupt handler (see #2337)
	also supported by DEC Pathworks for DOS
SeeAlso: INT 6B"DECnet",INT 6D"DECnet",INT 6E"DECnet"
Index:	installation check;DECnet DOS scheduler

Format of DECnet DOS signature area:
Offset	Size	Description	(Table 2337)
 -5	BYTE	major version number
 -4	BYTE	minor version number
 -3   3 BYTEs	signature (ASCII "SCH")
--------h-6C---------------------------------
INT 6C C - HP Vectra AT - IRQ20 - HP-HIL CONTROLLER INTERRUPT
SeeAlso: INT 0C"IRQ0",INT 6B"HP Vectra",INT 6D"HP Vectra"
--------V-6D---------------------------------
INT 6D - VIDEO - many VGA - VIDEO BIOS ENTRY POINT
Desc:	points at the original INT 10 entry point set up by the VGA BIOS
Note:	used by IBM, ATI VGA Wonder, Paradise, Video7, and NCR, and many others
SeeAlso: INT 10
--------V-6D---------------------------------
INT 6D - Trident SVGA - VIDEO BIOS HANDLER
Note:	the BIOS INT 10 handler on various Trident VGA cards consists merely
	  of a call to INT 6D followed by an IRET.
--------N-6D---------------------------------
INT 6D - DECnet DOS (before 2.1) - DATA LINK LAYER PROGRAM 
	AH = function
	???
Return: ???
Note:	the installation check consists of testing for a signature area
	  immediately preceding the interrupt handler (see #2338)
SeeAlso: INT 69/AH=0Ah,INT 6C"DECnet",INT 6E"DECnet"
Index:	installation check;DECnet DOS Data Link Layer

Format of DECnet DOS signature area:
Offset	Size	Description	(Table 2338)
 -5	BYTE	major version number
 -4	BYTE	minor version number
 -3   3 BYTEs	signature (ASCII "DLL")
--------h-6D---------------------------------
INT 6D C - HP Vectra AT - IRQ21 - RESERVED HARDWARE INTERRUPT
SeeAlso: INT 0D"IRQ0",INT 6C"HP Vectra",INT 6E"HP Vectra"
--------N-6E---------------------------------
INT 6E - DECnet DOS - DECnet NETWORK PROCESS API
Notes:	this is the main DECnet DOS access, and is described in Digital manual
	  AA-EB46B-TV ("DECnet-DOS Programmer's Reference Manual")
	there is a signature/data area immediately prior to the interrupt
	  handler which may be used as an installation check (see #2339)
Index:	installation check;DECnet DOS

Format of DECnet DOS signature area:
Offset	Size	Description	(Table 2339)
 -5	BYTE	major version number
 -4	BYTE	minor version number
 -3   3 BYTEs	signature (ASCII "DNP")
--------h-6E---------------------------------
INT 6E C - HP Vectra AT - IRQ22 - RESERVED HARDWARE INTERRUPT
SeeAlso: INT 0E"IRQ0",INT 6D"HP Vectra",INT 6F/AH=00h"HP Vectra"
--------N-6F---------------------------------
INT 6F - Novell NetWare - PCOX API (3270 PC terminal interface)
	AX = function
	    0000h enter terminal mode
		Return: AX = status
			    0000h no action requested
			    0001h screen save
	    0001h reset interface and set configuration parameters
		DX = bitfields
		    bits 2-0: model number
		    bits 4-3: I/O address
		    bits 6-5: DMA channel
		Return: nothing
	    0002h set display parameters
		DX = bitfields
		    bits 1-0: OIA mode
			 bits 4-2: monitor support
		Return: nothing
	    0003h read status
		Return: AX = status word (see #2340)
	    0004h read cursor position
		Return: AX = cursor position
	    0005h get character from device buffer
		DX = cursor position
		Return: AH = type (00h data, 01h attribute)
			AL = data or attribute character
	    0006h send character
		DH = type (00h ASCII, 01h extended code)
		DL = ASCII character or extended code
		Return: nothing
	    0007h set timeout
		DX = timeout in seconds
		Return: nothing
	    0008h wait for location to be modified
		DX = cursor position
		Return: AX = status (0000h modified, nonzero timeout)
	    0009h NOP
	    000Ah restore display
		Return: nothing
		 000Bh update device buffer
		Return: AX = cursor positoin
	    000Ch write string to add information area
		DS:DX -> string
		Return: nothing
	    000Dh maintenance operations
		DX = maintenance operation code
		Return: AX = operation status
	    000Eh get control program version
		Return: AH = release number (major version)
			AL = level number (minor version)
	    000Fh get microcode version
		Return: AH = release number (major version)
			AL = level number (minor version)
	    0010h save or display graphics
		BX = length of data buffer
		CX = subfunction request code
		DS:DX -> data buffer
		Return: AX = return code
			CX = length of PIF data
	    0011h perform structured field operation
		CX = request number
		DS:DX -> parameter list
		Return: AX = status word (see #2340)
			CX = error number
	    0012h set cursor position for direct write buffer
		DX = new cursor position
		Return: AX = status word (see #2340)
	    0013h write direct to buffer
		DL = character to be written
		DH = translation option
		Return: AX = status word (see #2340)
	    0014h write direct to buffer without echo
		DL = character to be written
		DH = translation option
		Return: AX = status word (see #2340)
	    0015h set direct write string length
		DX = string value
		Return: nothing
	    0016h write string direct to buffer
		DS:DX -> string
		Return: AX = status word (see #2340)
	    0017h write string direct to buffer, untranslated
		DS:DX -> string
		Return: AX = status word (see #2340)
	    0018h get direct-write cursor position
		Return: AX = cursor position
	    0019h convert row/column to cursor position
		DH = display row (1-43)
		DL = display column (1-132)
		Return: AX = cursor position
	    001Ah convert cursor position to row/column
		DX = cursor position
		Return: AH = display row
			AL = display column
	    001Bh find next field
		DX = initial cursor position
		Return: AX = field cursor position
	    001Ch find previous field
		DX = initial cursor position
		Return: AX = field cursor position
	    001Dh find next unprotected field
		DX = initial cursor position
		Return: AX = field cursor position
	    001Eh find previous unprotected field
		DX = initial cursor position
		Return: AX = field cursor position
	    001Fh find next protected field
		DX = initial cursor position
		Return: AX = field cursor position
	    0020h find previous protected field
		DX = initial cursor position
		Return: AX = field cursor position
	    0021h masked search forward
		DH = mask
		DL = search pattern
		Return: AX = cursor position or 0000h
	    0022h masked search backward
		DH = mask
		DL = search pattern
		Return: AX = cursor position or 0FFFh
	    0023h find field length
		DX = cursor position
		Return: AX = field length
	    0024h read field
		DS:DX -> buffer for field contents
		Return: AX = status word (see #2340)
	    0025h read screen
		DS:DX -> buffer for screen contents
		Return: AX = status word (see #2340)
	    0026h read buffer untranslated
		DX = cursor position
		Return: AX = buffer code
			CX:BX -> 3278/79 device buffer image
	    0027h enable/disable keyboard
		DL = new state of keyboard breaks (00h enabled, 01h disabled)
		Return: nothing
	    0028h select host session
		DL = session short name
		Return: AX = session information
	    0029h retrieve host session name
		AX = short name (DFT) or 0000h (not available, CUT mode)
	    002Ah get current device buffer size
		Return: AX = device buffer size
			CX = segment of EAB
	    002Bh arm modified location trigger
		DX = cursor position
		Return: AX = status (0000h not available, 0001h successful)

Bitfields for PCOX status word:
Bit(s)	Description	(Table 2340)
 0,1	cursor type
 2	cursor inhibited
 3	display inhibited
 4	feature step inhibited
 5	480-character format code
 6,7	unused
 8-10	model number (2-5)
 11	unit has been reset by controller (cleared after status returned)
 12	buffer has been written into (cleared after status returned)
 13	alarm has been sounded (cleared after status returned)
 14-15	monitor type (01 mono, 10 color, 11 hybrid)
--------N-6F00-------------------------------
INT 6F - 10NET - LOGIN
	AH = 00h
	DS:DX -> login record (see #2341)
Return: CL = security level
	AX = status (see #2342)
SeeAlso: AH=01h,AH=80h,INT 21/AX=4402h"10MEMMGR"

Format of 10NET login record:
Offset	Size	Description	(Table 2341)
 00h  8 BYTEs	user name
 08h  8 BYTEs	password
 10h 12 BYTEs	name of SuperStation

(Table 2342)
Values for 10NET status:
 0000h	successful
 01FFh	"RTO_NERR" transmit interrupt lost (time out on response)
 02FFh	"NET_NERR" network (hardware) error
 03FFh	"PAS_NERR" invalid password
 04FFh	"LRN_NERR" local resource not available
 05FFh	"SRN_NERR" server resource not available
 06FFh	"LNM_NERR" already logged in under different name
 07FFh	"LSF_NERR" login security failure (node)
 08FFh	"NLI_NERR" not logged in
 09FFh	"DIVZ_NERR" position calc error
 0AFFh	"NT1_NERR" receive subfunction not = send subfunction (i.e. read,write)
 0BFFh	"RFNC_NERR" request function not in range
 0CFFh	"NSFH_NERR" no more server file handle entries left
 0DFFh	"NFTAB_NERR" no more shared file table entries left
 0EFFh	"NUFH_NERR" no more user file handle entries left
 0FFFh	"CHAT_NERR" chat permit not on
 10FFh	"NSRV_NERR" not a server on request
 11FFh	"NOBD_NERR" no transporter board error
 12FFh	"STO_NERR" time out on send
 13FFh	"INF_NERR" item not found (spool item not on queue)
 14FFh	"DACS_NERR" DOS access incompatible
 15FFh	"RLOCK_NERR" record already locked
 16FFh	"IVP_NERR" invalid parameter
 17FFh	"RLTO_NERR" record lock time out error
 18FFh	"CSPL_NERR" currently spooling to named device
 19FFh	"DRP_NERR" dropped receive message (throttle)
 1AFFh	"SOPV_NERR" open sharing violation
 1BFFh	"NTUF_NERR" no more tuf entries left
 1CFFh	"NOWN_NERR" not file owner on open
 1DFFh	"RSEC_NERR" read security not passed
 1EFFh	"WSEC_NERR" write security not passed
 1FFFh	"GSEC_NERR" group security not passed
 20FFh	"SEC1_NERR" security file failure
 21FFh	"ACT1_NERR" activity file failure
 22FFh	"SPL1_NERR" spool control file failure
 23FFh	"NMT_NERR" device not mounted (spooling)
 24FFh	"RSPL_NERR" spool file has not been terminated
 25FFh	"DNSH_NERR" device not mounted or is not being shared
 26FFh	"DUP_NERR" duplicate node ID
 27FFh	"FNF_NERR" file not found error
 28FFh	"NMF_NERR" no more files
 29FFh	"UN_NERR" unknown internal system error
 2AFFh	"QCP_NERR" print queue is full or corrupted
 2BFFh	"IFNC_NERR" invalid function
 2CFFh	"IVH_NERR" invalid handle
 2DFFh	"TOF_NERR" too many files opened
 2EFFh	"PNF_NERR" path not found
 2FFFh	"SACT_NERR" named file is active
---10NET v5.0+ ---
 30FFh	"NAK_NERR" received NAK on send (destination out of buffers)
 31FFh	"RENT_NERR" reentrancy in driver F_SEND
 32FFh	"RECV_NERR" driver could not be put in receive mode
 33FFh	"NRLT_NERR" no more RLTAB entries left
 34FFh	"DIAL_NERR" function requires an unsupported dialect
 35FFh	"IVD_NERR" invalid device
 36FFh	"NALV_NERR" netname access level violated
 37FFh	"NPIDNF_NERR" network path not found
 38FFh	"SP_NERR" server is paused
 39FFh	"TMNM_NERR" too many remote user names
 3AFFh	"DUPD_NERR" duplicate network device
 3BFFh	"DIU_NERR" shared device in use, can't delete
 3CFFh	"NNWD_NERR" network name was deleted
 3DFFh	"NPFS_NERR" not enough space for print file
 3EFFh	"NNNF_NERR" network name not found (can't find the call name)
 3FFFh	"NB_NERR" network busy
 40FFh	"NDNLE_NERR" network device no longer exists
 41FFh	"NBCLE_NERR" NetBIOS command limit exceeded
 42FFh	"FINT24_NERR" Fail on INT 24h
 43FFh	"PEXP_NERR" password expired
 44FFh	"NPUP_NERR" new password error
 45FFh	"MAXS_NERR" maximum allowed disk space exceeded
 46FFh	"TDOW_NERR" time-of-day/day-of-week error
SeeAlso: #2369
Index:	error codes;10Net|10Net;error codes
--------b-6F00-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_ISR" (internal) - RESPOND TO LOGICAL ISR
	AH = 00h
	BP = ID for driver (see #2343)
	DH = data type (see #2344)
	DL = physical device driver's index (driver ID / 6)
	BX,CX = data
	ES:0000h -> physical device's Describe Record (see #2351)
	---keypress event data---
	    BH = keyboard state (only if bit 5 of DH set) (see #2345)
	    BL = scancode (if bit 4 of DH clear)
	    CX = number of scancodes in list (if bit 4 of DH set)
	    ES:SI -> scancode list (if bit 4 of DH set)
	---motion event data---
	    BX = new X position (abs device) or X increment (relative device)
	    CX = new Y position (abs device) or Y increment (relative device)
	---button event data
	    BL = button information
		bits 15-8 reserved
		bit 7: button state (0 = down, 1 = up)
		bits 6-0: button number (0-7)
	    BH = reserved
Return: AH = status (see #2346)
	BP,DS destroyed
	---if device is keyboard translator---
	    BL = translated scancode
	    BH = new keyboard state (if DH bit 5 set) (see #2345)
	    DH = new scancode type (see #2344)
Notes:	INT 6F corresponds to IRQ23 on the original HP Vectra AT, which is
	  unavailable because of its use as a BIOS extension software interrupt
	the INT 6F handler consists of an instruction to load DS with the
	  driver's data segment followed by an indexed far jump using BP to
	  select the destination vector; since the interrupt handler is
	  located immediately following the dispatch table, the HP_VECTOR_TABLE
	  may be found by looking at offset 0000h in the INT 6F segment, and
	  its size is equal to the offset of the interrupt handler
	each entry in the HP_VECTOR table consists of a DWORD for the driver's
	  entry point address and a WORD for the driver's data segment
	this function is not user-callable, as it is a response to a physical
	  event, and assumes that the caller has already handled the physical
	  interrupt and updated the Describe Record (see #2351) to reflect
	  the event
SeeAlso: INT 6C"HP Vectra",INT 6F/AH=02h"HP Vectra"

(Table 2343)
Values for HP Vectra EX-BIOS driver ID:
 0000h	V_SCOPY (null driver, but DS value points at system copyright string)
 0006h	V_DOLITTLE (null driver)
 000Ch	V_PNULL (null driver)
 0012h	V_SYSTEM
 0018h	reserved
 001Eh	V_S8259
 0024h	reserved
 002Ah	V_SINPUT
 0030h	reserved
 0036h	V_QWERTY (keyboard translator)
 003Ch	V_SOFTKEY (keyboard translator)
 0042h	V_FUNCTION (keyboard translator)
 0048h	V_NUMPAD (keyboard translator)
 004Eh	V_CCP (keyboard translator)
 0054h	V_SVIDEO
 005Ah	V_STRACK
 0060h	V_EVENT_TOUCH
 0066h	V_EVENT_TABLET
 006Ch	V_EVENT_POINTER
 0072h	reserved
 0078h	reserved
 007Eh	reserved
 0084h	reserved
 008Ah	V_CCPCUR (keyboard translator)
 0090h	V_RAW (keyboard translator)
 0096h	V_CCPNUM (keyboard translator)
 009Ch	V_OFF (keyboard translator)
 00A2h	V_CCPGID (translator: cursor control pad keys to GID data)
 00A8h	V_SKEY2FKEY (keyboard translator)
 00AEh	V_8041
 00B4h	V_PGID_CCP
 00BAh	C_LTABLET
 00C0h	V_LPOINTER (pointing device: mouse, etc.)
 00C6h	V_LTOUCH (touch screen)
 00CCh	V_LHPMOUSE
 00D2h	???
 ...
 0102h	???
 0108h	V_LNULL
 010Eh	reserved
 0114h	V_HPHIL
 011Ah-01C2h reserved
 016Eh	V_SCANDOOR (scancode management chip driver) (ES/QS/RS only)
 01C8h-0228h available

(Table 2344)
Values for HP Vectra EX-BIOS ISR data type:
 00h	reserved "T_KC_R0"
 01h	reserved "T_KC_R1"
 02h	ASCII data
 03h	reserved "T_KC_R3"
 04h	HP150 keyboard (ITF) scancode
 05h	reserved "T_KC_R5"
 06h	device-definable type
 07h	HP Vectra keyboard set
 08h	IBM AT scancode set
 09h	button data
 0Ah	IBM PC scancode set
 0Bh	Softkey keypad (F1-F8)
 0Ch	function key keypad (F1-F10)
 0Dh	HP Cursor Control Pad keypad
 0Eh	Qwerty keypad
 0Fh	Numeric keypad
 1xh	bit 4 set: string of CX scancode of type 0xh at ES:SI
 2xh	bit 5 set: BH contains current keyboard state
 40h	signed 8-bit relative data
 41h	signed 16-bit relative data
 42h	unsigned 8-bit absolute data
 43h	unsigned 16-bit absolute data
 45h	specially-formed data (80x25) generated by V_LTOUCH
 46h	specially-formed data (640x200) generated by V_LTABLET
 47h	specially-formed data (640x200) generated by V_LPOINTER

Bitfields for HP Vectra EX-BIOS keyboard state:
Bit(s)	Description	(Table 2345)
 0	Alt pressed
 1	Left Shift pressed
 2	Right Shift pressed
 3	Ctrl pressed
 4	CapsLock active
 5	NumLock active
 6	Right unlabeled key pressed (some international keyboards)
 7	Left unlabeled key pressed (some international keyboards)
SeeAlso: #0442

(Table 2346)
Values for HP Vectra EX-BIOS status:
 00h	successful
 02h	unsupported function
 04h	not serviced
 06h	done (no further processing should be performed on the ISR event)
 F2h	device is out of paper
 F4h	device is offline
 F6h	no more space for more drivers
 F8h	driver is busy
 FAh	bad parameter
 FEh	operation failed
Note:	status codes are always even; negative values (>= 80h) indicate errors
	  while positive values indicate exceptional conditions

Format of HP EX-BIOS driver header data:
Offset	Size	Description	(Table 2347)
 00h	WORD	driver attributes (see #2348)
 02h	WORD	string index of driver's name
 04h	WORD	driver's default logical device vector (see #2343)
 06h	WORD	driver's parent class (bitset) (see #2349)
 08h	WORD	driver's child class (bitset)
 0Ah	WORD	driver's parent vector
 0Ch	WORD	driver's child vector
 0Eh	BYTE	major subaddress
 0Fh	BYTE	minor subaddress
Notes:	this structure is located at offset 0 in the driver's data segment,
	  which in turn may be read from the HP_VECTOR_TABLE (see note in
	  main entry)
	only the first WORD is required, and everything from offset 6 onward
	  is only required if the device wishes to perform device mapping
SeeAlso: #2350,#2351

Bitfields for HP EX-BIOS driver header attributes:
Bit(s)	Description	(Table 2348)
 15	this is a complete driver header
 14	"ATR_DEVCFG" reserved
 13	driver can be mapped with the parent vector at offset 0Ah
 12	driver can be mapped with the child vector at offset 0Ch
 11-9	driver type
	000 reserved vector
	001 free vector
	010 EX-BIOS service
	011 logical driver (mapped from parent to child)
	100 mappable driver (cannot be last in driver chain)
	101 mappable driver that is last in driver chain
	110 input driver (mappable)
	111 reserved
 8	"ATR_STRING" reserved
 7	call SF_START whenever driver is remapped
 6-5	addressing requirements
	00 no subaddresses required
	01 requires major address be stored at offset 0Eh
	10 requires minor address be stored at offset 0Fh
	11 required major,minor, and mid addresses (minor in low nybble of
	      offset 0Fh, mid address in high nybble of 0Fh)
 4	driver can be shared between several parent drivers
 3	driver can be shared between several child drivers
 2	this driver header is in ROM
 1	"ATR_YIELD" reserved
 0	reserved
SeeAlso: #2347,#2349

Bitfields for HP EX-BIOS driver class:
Bit(s)	Description	(Table 2349)
 15	maps F1 to F8 softkeys
 14	keyboard
 13	cursor pad
 12	console device
 11	serial output device (may be capable of limited input)
 10	"CL_COMM" reserved
 9	interfaces multiple resources transparent to operating system
 8	serial output device filter (can be mapped between logical and physical
	  driver to perform translations)
 7	addressed block device
 6	priority boot device
 5	logical graphics input device
 4	physical graphics input device (can map to child of another driver)
 3	"CL_GID" can map to an event
 2	physical touch device
 1	reserved
 0	class extension bit
Note:	special values: FFFFh maps to all other devices (V_PNULL), and 0000h
	  maps to no other driver
SeeAlso: #2347

Format of HP EX-BIOS global data area:
Offset	Size	Description	(Table 2350)
 00h 20 BYTEs	reserved
 14h	BYTE	sound driver status
 15h	BYTE	number of pending key clicks (max 4) (see AH=34h/BP=0012h)
 16h	BYTE	current tick duration scaling factor
 17h	BYTE	current key click volume
 18h	WORD	current beep period (10 us increments) (see AH=3Ch/BP=0012h)
 1Ah	WORD	current beep duration (10 us increments)
 1Ch	BYTE	number of pending beep functions (max 4) (see AH=3Ah/BP=0012h)
 1Dh	BYTE	reserved
 1Eh	WORD	next unused string index number
 20h	...	reserved
SeeAlso: #2347

Format of HP EX-BIOS Driver Describe Record:
Offset	Size	Description	(Table 2351)
 00h 16 BYTEs	EX-BIOS driver header data (see #2347)
 10h	BYTE	device GID type
		bits 7-4: device type
		bits 3-0: physical device link address
 11h	BYTE	physical device ID (see #2353)
 12h	WORD	logical device status bits (see #2352)
 14h	BYTE	physical device vector number (driver ID / 6)
 15h	BYTE	maximum number of axes reported (0-2)
 16h	BYTE	device class
		bits 7-4: current class
		bits 3-0: default class
 17h	BYTE	number of buttons/prompts
		bits 7-4: number of prompts
		bits 3-0: number of buttons
 18h	BYTE	reserved
 19h	BYTE	(physical devices only) maximum output burst length
 1Ah	BYTE	(physical devices only) number of write registers
 1Bh	BYTE	(physical devices only) number of read registers
 1Ch	BYTE	button transition flags (bit 0 = button0, etc.)
 1Dh	BYTE	current button states (bit 0 = button0, etc.)
 1Eh	WORD	device resolution
 20h	WORD	maximum x-axis count
 22h	WORD	maximum y-axis count
 24h	WORD	X position data for absolute devices
 26h	WORD	Y position data for absolute devices
 28h	WORD	X delta for relative devices
 2Ah	WORD	Y delta for relative devices
 2Ch	WORD	(logical devices only) X-axis scaling accumulator
		(fraction of one logical unit)
 2Eh	WORD	(logical devices only) Y-axis scaling accumulator
		(fraction of one logical unit)

Bitfields for HP logical device status flags:
Bit(s)	Description	(Table 2352)
 15-5	reserved
 4	event enabled
 3	tracking enabled
 2	clipping enabled
 1	button error occurred
 0	interrupt in progress
SeeAlso: #2351

(Table 2353)
Values for HP-HIL device ID:
 00h-02h reserved
 03h	Swiss-French keyboard
 04h-06h reserved
 07h	Canadian-English keyboard
 08h-0Ah reserved
 0Bh	Italian keyboard
 0Ch	reserved
 0Dh	Dutch keyboard
 0Eh	Swedish keyboard
 0Fh	German keyboard
 10h-12h reserved
 13h	Spanish keyboard
 14h	reserved
 15h	Belgian (Flemish) keyboard
 16h	Finnish keyboard
 17h	UK keyboard
 18h	French-Canadian keyboard
 19h	Swiss-German keyboard
 1Ah	Nerwegian keyboard
 1Bh	Frensh keyboard
 1Ch	Danish keyboard
 1Dh	Katakana keyboard
 1Eh	Latin American-Spanish keyboard
 1Fh	US-American keyboard
 20h-2Bh reserved
 2Ch-2Fh tone generator
 30h-3Fh reserved
 40h-5Bh reserved (character entry)
 5Ch-5Fh barcode reader
 60h-67h reserved (relative positions)
 68h-6Bh mouse
 6Ch-6Fh trackball
 70h-7Fh reserved (relative positions)
 80h-87h reserved (absolute positions)
 88h-8Bh touchpad
 8Ch-8Fh touch screen
 90h-97h graphics tablet
 98h-9Fh reserved (absolute positions)
 A0h-BFh compressed keyboard (91-93 keys)
 C0h-DFh extended keyboard (107-109 keys)
 E0h-FFh standard keyboard (85-87 keys)
--------N-6F01-------------------------------
INT 6F - 10NET - LOGOFF
	AH = 01h
	DS:DX -> superstation ID or nulls (12 bytes)
Return: CX = number of files closed
	AX = status (see also #2342)
	    08FFh superstation ID not already logged in
SeeAlso: AH=00h"10NET",AH=81h
--------N-6F02-------------------------------
INT 6F - 10NET - STATUS OF NODE
	AH = 02h
	DS:DX -> 512-byte status record (see #2355)
Return:	CF clear if successful
	CF set on error
	    AX = error code (see #2342)
SeeAlso: INT 21/AX=5E01h"10NET"

(Table 2354)
Values for 10NET station type:
 00h	workstation
 01h	superstation
 02h	gateway station
 03h	gateway active
 04h	logged into multiple superstations
 05h	reserved

Format of 10NET node status record:
Offset	Size	Description	(Table 2355)
 00h  8 BYTEs	user name (0 if none)
 08h	BYTE	station type (see #2354)
 09h 24 BYTEs	list of superstations logged into more than one superstation
 21h 12 BYTEs	node ID
 2Dh	WORD	message count for this station (send for user node, receive for
		  superstations)
---for superstations only---
 2Fh	WORD	drives allocated (bit 0=A:, bit 1=B:,...)
 31h	BYTE	user service flags (see #2356)
 32h	BYTE	printers allocated (bit 0=LPT1,...)
 33h	BYTE	number of unprinted spool files
 34h	BYTE	number of opened files
 35h	BYTE	number of logged on nodes
 36h	BYTE	primary drive (1=A:)
 37h	BYTE	reserved
 38h  N BYTEs	list of logged on node IDs (each 12 bytes, max 37 IDs)
1F4h  3 BYTEs	time: sec/min/hrs
1F7h  3 BYTEs	date: day/mon/year-1980

Bitfields for 10NET user service flags:
Bit(s)	Description	(Table 2356)
 7	gate
 6	print permit on
 4	SUBMIT is on
 3	mail waiting for node
 2	calendar waiting for you
 1	news waiting for you
 0	mail waiting for you
--------b-6F0200-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_INIT" - START INITIALIZING DRIVER
	AX = 0200h
	BP = driver ID (see #2343)
	BX = "last-used DS" value from HP global data area (see #2350)
Return: AH = status (see #2346)
	BX = new "last-used DS" value
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0202h,AH=0Ah"F_INS_FIXOWNDS"
--------b-6F0202-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_START" - COMPLETE DRIVER INITIALIZ.
	AX = 0202h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0204h"HP Vectra"
--------W-6F0204-----------------------------
INT 6F C - MS Windows 3.0 - DOS APPLICATION SWITCH HOOK
	AX = 0204h
Return: AX = status
	    0000h switch is allowed
	    other switch not allowed
Note:	intercepting this call will allow a DOS application to ensure that
	  Windows will not switch away from it.
--------b-6F0204-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_REPORT_STATE" - GET DRIVER STATE
	AX = 0204h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	DX = device state from Logical Describe Record (see #2351,#2357)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0206h"HP Vectra"

Bitfields for HP Vectra V_HPHIL driver state:
Bit(s)	Description	(Table 2357)
 0	link configuration in progress
 1	reserved
 2	no devices attached
 3	general failure
 4,5	reserved
 6	HP-HIL driver open
 7	reserved
 8	link has been reconfigured
 9	error during output request
 10	reserved
 11	output request complete
 12	timeout
 13-15	reserved
--------b-6F0206-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_VERSION_DESC" - GET DRIVER VERSION
	AX = 0206h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BX = driver release date code
	    (BL = BCD years since 1960, BH = BCD week number within year)
	CX = length of version string
	ES:DI -> version string
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0204h"HP Vectra",AX=0208h
--------b-6F0208-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_DEF_ATTR" - RESET TO DEFAULT ATTR
	AX = 0208h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=020Ah,AX=020Ch
--------b-6F020A-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_GET_ATTR" - GET CURRENT ATTRIBUTES
	AX = 020Ah
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BX,CX = current attributes
	BP,DS destroyed
	---for V_LTOUCH, V_LPOINTER---
	    BX = logical width	
	    CX = logical height
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Ch
--------b-6F020C-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_SET_ATTR" - SET DEVICE ATTRIBUTES
	AX = 020Ch
	BP = driver ID (see #2343)
	BX,CX = new attributes
	---for V_LTOUCH, V_LPOINTER---
	    BX = new logical width
	    CX = new logical height
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Ah
--------b-6F020E-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_OPEN" - RESERVE DRIVER FOR ACCESS
	AX = 020Eh
	BP = driver ID (see #2343) for V_HPHIL, others
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	place device in open state, which allows output to the device
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=0210h
--------b-6F0210-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_CLOSE" - RELEASE DRIVER
	AX = 0210h
	BP = driver ID (see #2343) for V_HPHIL, others
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	place device in closed state, which disallows output to the device
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Eh
--------b-6F0212-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_TIMEOUT" - REPORT REQUESTED TIMEOUT
	AX = 0212h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	report to driver that a previously-requested timeout interval has
	  expired
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Eh,AX=0214h,AX=0216h
--------b-6F0214-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_INTERVAL" - 60 HZ INTERVAL EXPIRED
	AX = 0214h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	report to driver that a previously-requested 60 Hz interval has
	  expired
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Eh,AX=0212h,AX=0216h
--------b-6F0216-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_SYSTEM SF_TEST" - PERFORM HARDWARE TEST
	AX = 0216h
	BP = driver ID (see #2343)
Return: AH = status (see #2346)
	BP,DS destroyed
	---on failure---
	CX = length of reason string
	ES:DI -> string describing error
SeeAlso: AH=00h"HP Vectra",AX=0200h,AX=0208h,AX=020Eh,AX=0212h,AX=0214h
--------N-6F03-------------------------------
INT 6F - 10NET - GET ADDRESS OF CONFIGURATION TABLE
	AH = 03h
	DS:DI -> node ID (optional)
Return: ES:BX -> configuration table (see #2358)
SeeAlso: AH=13h,INT 21/AX=5E01h"10NET"

Format of 10NET configuration table:
Offset	Size	Description	(Table 2358)
-41	WORD	local device table address
-39	WORD	extended network error mapping table address
-37	WORD	shared device table address
-35	WORD	mounted device table address
-33	BYTE	receive buffer counter
-32	BYTE	collect buffer counter
-31	WORD	TUF address
-29	BYTE	enable flag
-28	BYTE	FCB keep flag
-27	WORD	reserved
---up to here, 10NET v3.3---
-25	WORD	count of dropped Send6F
-23	WORD	buffer start address
-21	WORD	comm driver base address
-19	WORD	send/receive retry count
-17	BYTE	number of 550ms loops before timeout
-16	WORD	UFH address
-14	WORD	CDIR address
-12	WORD	LTAB address
-10	WORD	SFH address
-8	WORD	FTAB address
-6	WORD	RLTAB address
-4	WORD	SMI address
-2	WORD	NTAB address
 00h	WORD	address of first CT_DRV
 02h	BYTE	number of DRV entries
 03h  8 BYTEs	login name
 0Bh 12 BYTEs	node ID (blank-padded)
 17h  6 BYTEs	node address
 1Dh	BYTE	flag
 1Eh	BYTE	CT_CFLG (chat permit)
		bit 1: sound bell
		bit 0: CHAT permit
 1Fh	BYTE	CT_PSFLG (see #2359)
 20h	BYTE	in 10Net flag
 21h	WORD	receive message count
 23h	WORD	send message count
 25h	WORD	retry count
 27h	WORD	failed count
 29h	WORD	driver errors
 2Bh	WORD	dropped responses/CHATs
 2Dh  9 BYTEs	LIST ID/NTAB address (3 entries--LPT1-3)
 36h  6 BYTEs	AUX ID/NTAB address (2 entries--COM1-2)
 3Ch	BYTE	active CB channel
 3Dh	BYTE	received 6F messages on queue
 3Eh  9 BYTEs	activity counters for channels 1-9
---beyond here, 10NET v3.3---
 47h	BYTE	bit 0: RS232 gate
		bit 1: Send6F gate (user set)
 48h	DWORD	pointer into gate (user set)
 4Ch	DWORD	pointer into 10Net send
 50h  N WORDs	addresses of timer blocks

Bitfields for CT_PSFLG:
Bit(s)	Description	(Table 2359)
 5	PRINT permit
 4	KB initiated
 3	CHAT called FOXPTRM
 2	SUBMIT active
 1	SUBMIT received
 0	SUBMIT permit
--------N-6F04-------------------------------
INT 6F - 10NET - SEND
	AH = 04h
	DS:BX -> send record (see #2360)
	DS:DX -> data (max 1024 bytes)
Return:	CF clear if successful
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AH=05h,AH=09h,AH=0Ah

Format of 10NET send record:
Offset	Size	Description	(Table 2360)
 00h 12 BYTEs	receiving node's ID
		if first byte has high-order bit set, message is directed to
		  the CT_RGATE vector at the receiver
		if second byte is 00h, first byte is taken as a CB
		  channel number and delivered to all nodes on same channel
 0Ch	WORD	 length of data at DX
--------b-6F04--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_BASEHPVT" - GET HP_VECTOR_TABLE ADDRESS
	AH = 04h
	BP = 0012h (driver ID for V_SYSTEM)
Return: AH = status (see #2346)
	ES = segment of HP_VECTOR_TABLE (see also AH=00h"HP Vectra")
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=06h"F_INS_XCHGFIX",AH=08h"F_INS_XCHGRSVD"
--------b-6F04--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_TRACK_INIT" - RESET TRACKING DRIVER TO DEFAULTS
	AH = 04h
	BP = 005Ah (driver ID for V_STRACK)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=06h"F_TRACK_ON",AH=08h"F_TRACK_OFF"
SeeAlso: AH=0Ah"F_DEF_MASKS",AH=0Ch"F_SET_LIMITS_X"
--------b-6F0400-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_LOCK" - RESERVE SUB-ADDRESSES
	AX = 0400h
	BP = driver ID (see #2343)
	DH,DL = major,minor address (optional)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	reserve specified sub-addresses on an already-allocated driver for
	  exclusive access
Note:	this function is documented as present but unsupported in the drivers
	  V_LTABLET, V_LPOINTER, and V_LTOUCH
SeeAlso: AH=02h"HP Vectra",AX=0402h"SF_UNLOCK"
--------b-6F0400BP001E-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_ENABLE_SVC" - UNMASK 8041 SVC INT
	AX = 0400h
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0402h"SF_DISABLE_SVC",AX=0404h"SF_ENABLE_KBD"
SeeAlso: AX=0408h"SF_ENABLE_HPHIL"
--------b-6F0400BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DEF_LINKS" - SET DEFAULT PARENTS
	AX = 0400h
	BP = 002Ah (driver ID for V_SINPUT)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	set the parent vectors in the physical device driver headers to their
	  system defaults
SeeAlso: AH=00h"HP Vectra",AX=0402h/BP=002Ah,AX=0404h/BP=002Ah
SeeAlso: AH=06h"F_INQUIRE"
--------b-6F0400BP0054-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_ID_HP" - INSTALLATION CHECK
	AX = 0400h
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #2346)
	BX = 4850h ('BP')
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0402h/BP=0054h,AX=0404h/BP=0054h,AX=0406h/BP=0054h
SeeAlso: AX=0408h/BP=0054h,AX=040Ah/BP=0054h
--------b-6F0400BP00CC-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_MOUSE_COM" - INIT INT 33 HANDLER
	AX = 0400h
	BP = 00CCh (driver ID for V_LHPMOUSE)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0402h/BP=00CCh
--------b-6F0402-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_UNLOCK" - RELEASE SUB-ADDRESSES
	AX = 0402h
	BP = driver ID (see #2343)
	DH,DL = major,minor address (optional)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	release specified sub-addresses from exclusive access
Note:	this function is documented as present but unsupported in the drivers
	  V_LTABLET, V_LPOINTER, and VLTOUCH
SeeAlso: AH=02h"HP Vectra",AX=0400h"SF_LOCK"
--------b-6F0402BP001E-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DISABLE_SVC" - MASK 8041 SVC INT
	AX = 0402h
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=001Eh,AX=0406h/BP=001Eh
SeeAlso: AX=040Ah/BP=001Eh
--------b-6F0402BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_GET_LINKS" - GET DRIVER LINK FIELDS
	AX = 0402h
	BP = 002Ah (driver ID for V_SINPUT)
	ES:SI -> buffer for link table (see #2361)
Return: AH = status (see #2346)
	ES:SI buffer filled
	BP,DS destroyed
Desc:	get the parent and child vectors for the seven supported physical
	  device drivers
SeeAlso: AH=00h"HP Vectra",AX=0400h"SF_DEF_LINKS",AX=0404h"SF_SET_LINKS"
SeeAlso: AH=06h"F_INQUIRE"

Format of HP Vectra EX-BIOS driver link table:
Offset	Size	Description	(Table 2361)
 00h	BYTE	vector number of HP-HIL device #1's child
 01h	BYTE	vector number of HP-HIL device #1's parent
	...
 0Ch	BYTE	vector number of HP-HIL device #7's child
 0Dh	BYTE	vector number of HP-HIL device #7's parent
--------b-6F0402BP0054-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_GET_INFO" - GET DISPLAY INFO
	AX = 0402h
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #2346)
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0400h/BP=0054h,AX=0404h/BP=0054h,AX=0406h/BP=0054h
SeeAlso: AX=0408h/BP=0054h,AX=040Ah/BP=0054h
--------b-6F0402BP00CC-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_MOUSE_COM" - FORCE INT 33 INIT
	AX = 0402h
	BP = 00CCh (driver ID for V_LHPMOUSE)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	set up INT 33 even if no mouse is installed
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=00CCh
--------b-6F0404-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_TRACK_ON" - GRAPHICS CURSOR ON
	AX = 0404h
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	enables graphics cursor tracking of the logical device's movement
SeeAlso: AH=00h"HP Vectra",AX=0400h,AX=0406h"SF_TRACK_OFF"
--------b-6F0404BP001E-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_ENABLE_KBD" - UNMASK 8041 OBF INT
	AX = 0404h
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0400h"SF_ENABLE_SVC",AX=0406h"SF_DISABLE_KBD"
SeeAlso: AX=0408h"SF_ENABLE_HPHIL"
--------b-6F0404BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_SET_LINKS" - SET DRIVER LINK FIELDS
	AX = 0404h
	BP = 002Ah (driver ID for V_SINPUT)
	ES:SI -> buffer containing link table (see #2361)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	specify the parent and child vectors for the seven supported physical
	  device drivers
SeeAlso: AH=00h"HP Vectra",AX=0400h"SF_DEF_LINKS",AX=0402h"SF_GET_LINKS"
SeeAlso: AH=06h"F_INQUIRE"
--------b-6F0404BP0054-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_SET_INFO" - SET EXT-CTRL INFO
	AX = 0404h
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #2346)
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0400h/BP=0054h,AX=0402h/BP=0054h,AX=0406h/BP=0054h
SeeAlso: AX=0408h/BP=0054h,AX=040Ah/BP=0054h
--------b-6F0406-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_TRACK_OFF" - GRAPHICS CURSOR OFF
	AX = 0406h
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	disables graphics cursor tracking of the logical device's movement
SeeAlso: AH=00h"HP Vectra",AX=0400h,AX=0404h"SF_TRACK_ON"
SeeAlso: AX=0408h"SF_CREATE_EVENT"
--------b-6F0406BP001E-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DISABLE_KBD" - MASK 8041 OBF INT
	AX = 0406h
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0402h"SF_DISABLE_SVC",AX=0404h"SF_ENABLE_KBD"
SeeAlso: AX=040Ah"SF_DISABLE_HPHIL"
--------b-6F0406BP0054-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_MOD_INFO" - SET EXT-CTRL REG
	AX = 0406h
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #2346)
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0400h/BP=0054h,AX=0402h/BP=0054h,AX=0404h/BP=0054h
SeeAlso: AX=0408h/BP=0054h,AX=040Ah/BP=0054h
--------b-6F0406BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_RECONFIGURE" - RECONFIG LINK
	AX = 0406h
	BP = 0114h (driver ID for V_HPHIL)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=020Eh,AX=0408h"SF_CRV_WR_PROMPTS"
SeeAlso: AX=0410h"SF_CRV_SELF_TEST"
--------b-6F0408-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CREATE_EVENT" - SET EVENT HANDLER
	AX = 0408h
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
	ES:SI -> new event handler (see AH=00h"HP Vectra")
	DX = new handler's DS
Return: AH = status (see #2346)
	ES:SI -> old event handler
	DX = old handler's DS
	BP,DS destroyed
Desc:	specify routine to be called on logical device events
Note:	when events occur, the event handler is called with the same registers
	  as the "F_ISR" function on AH=00h"HP Vectra"
SeeAlso: AH=00h"HP Vectra",AX=0400h,AX=0406h"SF_TRACK_OFF"
SeeAlso: AX=040Ah"SF_EVENT_ON",AX=040Ch"SF_EVENT_OFF",AH=06h"F_SAMPLE"
--------b-6F0408BP001E-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_ENABLE_HPHIL" - UNMASK HP-HIL INT
	AX = 0408h
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=001Eh,AX=0404h/BP=001Eh
SeeAlso: AX=040Ah/BP=001Eh
--------b-6F0408BP0054-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_GET_RES" - GET VIDMODE RESOLUTN
	AX = 0408h
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #2346)
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0400h/BP=0054h,AX=0402h/BP=0054h,AX=0404h/BP=0054h
SeeAlso: AX=0406h/BP=0054h,AX=040Ah/BP=0054h
--------b-6F0408BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_WR_PROMPTS" - WRITE PROMPT
	AX = 0408h
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	DL = prompt number
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=020Eh,AX=0406h/BP=0114h,AX=040Ah/BP=0114h

Bitfields for HP Vectra V_HPHIL device address indicator:
Bit(s)	Description	(Table 2362)
 15-14	reserved
 13	address in DH is valid (must be set, clear is reserved)
 12	valid value in DL
 11-0	reserved
--------b-6F040A-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_EVENT_ON" - ENABLE EVENT HANDLER
	AX = 040Ah
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0408h"SF_CREATE_EVENT",AX=040Ch"SF_EVENT_OFF"
SeeAlso: AX=040Eh"SF_CLIPPING_ON"
--------b-6F040ABP001E-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DISABLE_HPHIL" - MASK HP-HIL INT
	AX = 040Ah
	BP = 001Eh (driver ID for V_S8259)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0402h/BP=001Eh,AX=0406h/BP=001Eh
SeeAlso: AX=0408h/BP=001Eh
--------b-6F040ABP0054-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_VID_SET_MODE" - SET VIDEO MODE
	AX = 040Ah
	BP = 0054h (driver ID for V_SVIDEO)
	???
Return: AH = status (see #2346)
	BP,DS destroyed
	???
Note:	only partially documented
SeeAlso: AX=0400h/BP=0054h,AX=0402h/BP=0054h,AX=0404h/BP=0054h
SeeAlso: AX=0406h/BP=0054h,AX=0408h/BP=0054h
--------b-6F040ABP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CREATE_INTR" - CREATE INTERVAL ENTRY
	AX = 040Ah
	BP = 00AEh (driver ID for V_8041)
	BH = vector number of driver to be called regularly (vector addr / 6)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	add a driver to the list (max eight) of drivers which will be called
	  by the HP's 8041 at 60 Hz
Note:	the newly added entry will not be called until enabled with
	  AX=040Eh/BP=00AEh
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F040ABP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_WR_ACK" - ACKNOWLEDGE DEVICE
	AX = 040Ah
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	DL = acknowledge number (specific if 01h-07h, generic otherwise)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0406h/BP=0114h,AX=040Ch/BP=0114h
--------b-6F040C-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_EVENT_OFF" - DISABLE EVENT HANDLER
	AX = 040Ch
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0408h"SF_CREATE_EVENT",AX=040Ah"SF_EVENT_ON"
--------b-6F040CBP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DELET_INTR" - DELETE INTERVAL ENTRY
	AX = 040Ch
	BP = 00AEh (driver ID for V_8041)
	BH = vector number of driver to be removed (vector addr / 6)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	remove a driver to the list (max eight) of drivers which will be called
	  by the HP's 8041 at 60 Hz
SeeAlso: AH=00h"HP Vectra",AX=040Ah/BP=00AEh,AX=0410h/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F040CBP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_REPEAT" - SET KEY REPEAT RATE
	AX = 040Ch
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	DL = repeat rate (00h = 30 Hz, 01h = 60 Hz)
Return: AH = status (see #2346)
	BP,DS destroyed
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=00h"HP Vectra",AX=040Ah/BP=0114h,AX=040Eh/BP=0114h
--------b-6F040E-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CLIPPING_ON" - ENABLE CLIPPING
	AX = 040Eh
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	causes the physical device's motion to be clipped to prevent overflow
	  or underflow of the logical position
SeeAlso: AH=00h"HP Vectra",AX=040Ah"SF_EVENT_ON",AX=0410h"SF_CLIPPING_OFF"
--------b-6F040EBP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_ENABL_INTR" - START INTERRUPT SRVICE
	AX = 040Eh
	BP = 00AEh (driver ID for V_8041)
	BH = vector number of driver to be called regularly (vector addr / 6)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	enable 60 Hz calling of a driver previously added to the list of
	  drivers to be called by the HP's 8041
SeeAlso: AH=00h"HP Vectra",AX=040Ah/BP=00AEh,AX=0410h/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F040EBP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_DISABLE_REPEAT" - KEY REPT OFF
	AX = 040Eh
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
Return: AH = status (see #2346)
	BP,DS destroyed
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=0114h,AX=0410h/BP=0114h
SeeAlso: AX=0416h/BP=0114h
--------b-6F0410-----------------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CLIPPING_OFF" - DISABLE CLIPPING
	AX = 0410h
	BP = driver ID (see #2343) for V_LPOINTER, V_LTOUCH, V_LTABLET
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	disables clipping of the physical device's motion, which may cause
	  overflow or underflow of the logical position
SeeAlso: AH=00h"HP Vectra",AX=040Ah"SF_EVENT_ON",AX=040Eh"SF_CLIPPING_ON"
--------b-6F0410BP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DISBL_INTR" - END INTERRUPT SERVICE
	AX = 0410h
	BP = 00AEh (driver ID for V_8041)
	BH = vector number of driver (vector addr / 6)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	disable 60 Hz interval calls to the specified driver
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F0410BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_SELF_TEST" - PERFORM SELFTEST
	AX = 0410h
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	ES:SI -> buffer for result
Return: AH = status (see #2346)
	CX = number of bytes in buffer
	BP,DS destroyed
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=0114h,AX=0412h/BP=0114h
--------b-6F0412BP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_SET_RAMSW" - SET RAM SWITCH IN 8041
	AX = 0412h
	BP = 00AEh (driver ID for V_8041)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	sets a flag in the 8041 indicating that a second 256K bank of RAM
	  on the motherboard is enabled
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0414h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F0412BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_REPORT_STATUS" - GET DEVSTATUS
	AX = 0412h
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	ES:SI -> 15-byte buffer for status
Return: AH = status (see #2346)
	CX = number of bytes returned in buffer
	BP,DS destroyed
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=00h"HP Vectra",AX=0410h/BP=0114h,AX=0414h/BP=0114h
--------b-6F0414BP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CLR_RAMSW" - CLEAR 8041 RAM SWITCH
	AX = 0414h
	BP = 00AEh (driver ID for V_8041)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	clears a flag in the 8041 indicating that a second 256K bank of RAM
	  on the motherboard is enabled, causing the second bank to be disabled
Note:	this function should normally never be called
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0418h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F0414BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CRV_REPORT_NAME" - GET DEV NAME
	AX = 0414h
	BP = 0114h (driver ID for V_HPHIL)
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	ES:SI -> 15-byte buffer for name
Return: AH = status (see #2346)
	CX = number of bytes returned in buffer
	BP,DS destroyed
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=00h"HP Vectra",AX=0412h/BP=0114h
--------b-6F0416BP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_SET_CRTSW" - SET CRT TO MULTIMODE
	AX = 0416h
	BP = 00AEh (driver ID for V_8041)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	sets a flag in the 8041 indicating that the primary display is the
	  Multimode graphics adapter (default)
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0412h/BP=00AEh,AX=0418h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F0416BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_KEYBOARD_REPEAT" - SET TYPEMATIC
	AX = 0416h
	BP = 0114h (driver ID for V_HPHIL)
	BH = what to set (00h typematic rate, 01h delay, 02h both)
	BL = flag (00h = non-CCP keypad, 01h = Cursor Control Pad only)
	DL = rate
	    bits 7-4: delay value	
	    bits 3-0: typematic rate
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=040Eh/BP=0114h,AX=0418h/BP=0114h
--------b-6F0418BP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CLR_CRTSW" - SET CRT TO MONOCHROME
	AX = 0418h
	BP = 00AEh (driver ID for V_8041)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	clears a flag in the 8041, indicating that the primary display is the
	  monochrome adapter
SeeAlso: AH=00h"HP Vectra",AX=040Ch/BP=00AEh,AX=040Eh/BP=00AEh
SeeAlso: AX=0414h/BP=00AEh,AX=0416h/BP=00AEh,AX=041Ah/BP=00AEh
--------b-6F0418BP0114-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_KEYBOARD_LED" - SET KEYBOARD LEDS
	AX = 0418h
	BP = 0114h (driver ID for V_HPHIL)
	BL = new LED states
	    bit 0: scroll lock
	    bit 1: NumLock
	    bit 2: CapsLock
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=040Eh/BP=0114h,AX=0416h/BP=0114h
--------b-6F041ABP00AE-----------------------
INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_PASS_THRU" - SEND DATA BYTE TO 8041
	AX = 041Ah
	BP = 00AEh (driver ID for V_8041)
	BL = byte to send to 8041
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=040Ah/BP=00AEh,AX=040Eh/BP=00AEh
--------N-6F05-------------------------------
INT 6F - 10NET - RECEIVE
	AH = 05h
	CX = number of seconds before timeout
	DS:DX -> receive buffer (see #2363)
Return:	CF clear if successful
	    AH = FEh if dequeued message is a CB message
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AH=04h"10NET"

Format of 10NET receive buffer:
Offset	Size	Description	(Table 2363)
 00h 12 BYTEs	sending node's ID
 0Ch	WORD	length of message
 0Eh  N BYTEs	message (maximum 1024 bytes)
--------b-6F06-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_PUT_BYTE" - WRITE A BYTE OF DATA TO DEVICE
	AH = 06h
	BP = driver ID (see #2343) for V_HPHIL, others
	AL = value to output
	---if driver is V_HPHIL---
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	DL = HP-HIL device register (00h-7Fh)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	output a byte to a specific HP-HIL device register
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=04h"HP Vectra",AH=08h"F_GET_BYTE",AH=0Ah"F_PUT_BUFFER"
--------b-6F06-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_SAMPLE" - POLL CURRENT ABSOLUTE POSITION
	AH = 06h
	BP = driver ID (see #2343) for V_LTOUCH, V_LPOINTER, V_LTABLET, etc.
Return: AH = status (see #2346)
	BX = current logical X position
	CX = current logical Y position
	DL = button transitions (bit N = button N state has changed)
	DH = current button states (bit N = current button N state)
	ES:0000h -> logical device's Describe Record (see #2351)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=040Ah"SF_EVENT_ON",AX=040Eh"SF_CLIPPING_ON"
--------b-6F06--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_XCHGFIX" - EXCH VALUES WITH FIXED VECTOR
	AH = 06h
	BP = 0012h (driver ID for V_SYSTEM)
	BX = vector address
	DX = new value for DS
	ES:DI -> new CS:IP entry point
Return: AH = status (see #2346)
	DX = old value for DS
	ES:DI -> old CS:IP entry point
	BP,DS destroyed
Desc:	replace an existing EX-BIOS driver at a fixed HPVT location without
	  initialization
SeeAlso: AH=00h"HP Vectra",AH=04h"F_INS_BASEHPVT",AH=08h"F_INS_XCHGRSVD"
SeeAlso: AH=0Ah"F_INS_XCHGFREE",AH=0Ch"F_INS_FIXOWNDS"
--------b-6F06--BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INQUIRE" - GET DRIVER PHYSICAL DESCRIBE RECORD
	AH = 06h
	BP = 002Ah (driver ID for V_SINPUT)
	AL = HP-HIL physical device number (01h-07h)
Return: AH = status (see #2346)
	ES:SI -> physical describe record for driver
	BP,DS destroyed
Note:	the returned physical describe record must not be modified
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=002Ah,AH=08h/BP=002Ah,AH=0Ah/BP=002Ah
SeeAlso: AH=0Ch/BP=002Ah
--------b-6F06--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_TRACK_ON" - ENABLE CURSOR TRACKING
	AH = 06h
	BP = 005Ah (driver ID for V_STRACK)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=04h"F_TRACK_INIT",AH=08h"F_TRACK_OFF"
SeeAlso: AH=0Ah"F_DEF_MASKS",AH=0Ch"F_SET_LIMITS_X"
--------N-6F07-------------------------------
INT 6F - 10NET - LOCK HANDLE
	AH = 07h
	BX = file handle
	CX:DX = starting offset in file
	SI = record length
Return:	CF clear if successful
	CF set on error
	    AX = error code (see also AH=00h)
		0002h file not found
SeeAlso: AH=08h"10NET",AH=0Fh,INT 21/AH=5Ch
--------N-6F08-------------------------------
INT 6F - 10NET - UNLOCK HANDLE
	AH = 08h
	BX = file handle
	AL = mode
	    00h unlock all
	    01h unlock record at CX:DX
Return:	CF clear if successful
	CF set on error
	    AX = error code (see also AH=00h)
		0002h file not found
SeeAlso: AH=07h,AH=0Fh,INT 21/AH=5Ch
--------b-6F08-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_GET_BYTE" - READ A BYTE OF DATA FROM DEVICE
	AH = 08h
	BP = driver ID (see #2343) for V_HPHIL (0114h), others
	---if device is V_HPHIL---
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	DL = HP-HIL device register (00h-7Fh)
Return: AH = status (see #2346)
	AL = value read from device
	BP,DS destroyed
Desc:	generic read-byte function; for driver V_HPHIL, retrieves the value
	  of a specific HP-HIL device register
Note:	this function is only available if the driver is in the open state
	  (see AX=020Eh"SF_OPEN")
SeeAlso: AH=06h"F_PUT_BYTE",AH=0Ah"F_PUT_BUFFER",AH=0Ch"F_GET_BUFFER"
--------b-6F08--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_XCHGRSVD" - EXCH VALUES WITH RESRVED VECTOR
	AH = 08h
	BP = 0012h (driver ID for V_SYSTEM)
	DX = new value for DS
	ES:DI -> new CS:IP entry point
Return: AH = status (00h,F6h) (see also #2346)
	    00h successful
		BX = vector address used
		DX = old value for DS
		ES:DI -> old CS:IP entry point
	BP,DS destroyed
Desc:	exchange the supplied entry point and DS with the values in the next
	  reserved entry in the HP_VECTOR_TABLE
Note:	returns AH=F6h if no more reserved vectors are available
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=06h/BP=0012h,AH=0Ah/BP=0012h
SeeAlso: AH=0Ch/BP=0012h
--------b-6F08--BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INQUIRE_ALL" - GET DRIVER STATUS TABLE
	AH = 08h
	BP = 002Ah (driver ID for V_SINPUT)
	ES:SI -> buffer for device status table (see #2364)
Return: AH = status (see #2346)
	ES:SI buffer filled
	BP,DS destroyed
Note:	the returned physical describe record must not be modified
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=002Ah,AH=06h/BP=002Ah,AH=0Ah/BP=002Ah
SeeAlso: AH=0Ch/BP=002Ah

Format of HP Vectra HP-HIL physical device status table:
Offset	Size	Description	(Table 2364)
 00h	BYTE	status for HP-HIL device #1
		bit 0: device present
		bits 7-2 reserved
 01h	BYTE	device ID for HP-HIL device #1
	...
 0Ch	BYTE	status for HP-HIL device #7
 0Dh	BYTE	device ID for HP-HIL device #7
--------b-6F08--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_TRACK_OFF" - DISABLE CURSOR TRACKING
	AH = 08h
	BP = 005Ah (driver ID for V_STRACK)
Return: AH = status (see #2346)
	BP,DS destroyed
Note:	also removes the graphics cursor sprite from the screen
SeeAlso: AH=00h"HP Vectra",AH=04h"F_TRACK_INIT",AH=06h"F_TRACK_ON"
SeeAlso: AH=0Ah"F_DEF_MASKS",AH=0Ch"F_SET_LIMITS_X"
--------N-6F09-------------------------------
INT 6F - 10NET - SUBMIT
	AH = 09h
	DS:BX -> submit record (see #2365)
SeeAlso: AH=04h"10NET"

Format of 10NET submit record:
Offset	Size	Description	(Table 2365)
 00h 12 BYTEs	destination node ID (must be logged in)
 0Ch	WORD	length+2 of following 'command line' text
 0Eh  N BYTEs	command line text (<=100 bytes),="" system="" adds="" cr="" --------n-6f0a-------------------------------="" int="" 6f="" -="" 10net="" -="" chat="" ah="0Ah" ds:bx="" -=""> control parameters (see #2366)
	DS:DX -> chat message (see #2367)
SeeAlso: AH=04h"10NET",AH=8Ah

Format of 10NET chat control parameters:
Offset	Size	Description	(Table 2366)
 00h  8 BYTEs	sender ID, defaults to node's userID if nulls
 08h  8 BYTEs	destination user ID, 'EVERYONE' may be used
 10h 12 BYTEs	destination node ID

Format of 10NET chat message:
Offset	Size	Description	(Table 2367)
 00h	WORD	length+2 of following text
 02h  N BYTEs	text, max 101 bytes
--------b-6F0A-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_PUT_BUFFER" - WRITE A BUFFER TO DEVICE
	AH = 0Ah
	BP = driver ID (see #2343) for V_HPHIL (0114h), others
	CX = number of bytes to write
	ES:DI -> buffer containing data
	---if driver is V_HPHIL---
	BX = device address indicator (see #2362)
	DH = HP HIL device major address
	DL = HP-HIL device register (00h-7Fh)
Return: AH = status (see #2346)
	CX = number of unwritten bytes left in buffer
	BP,DS destroyed
SeeAlso: AH=06h"F_PUT_BYTE",AH=0Ah"F_PUT_BLOCK",AH=0Ch"F_GET_BUFFER"
SeeAlso: AH=0Eh"F_PUT_WORD"
--------b-6F0A-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_PUT_BLOCK" - WRITE BLOCKS TO DEVICE
	AH = 0Ah
	BP = driver ID (see #2343) for block device
	DH = device major number
	DL = device minor number
	ES:DI -> command block (see #2368)
Return: AH = status (see #2346)
	BX = operation status
	BP,DS destroyed
SeeAlso: AH=06h"F_PUT_BYTE",AH=0Ah"F_PUT_BUFFER",AH=0Ch"F_GET_BUFFER"
SeeAlso: AH=0Eh"F_PUT_WORD"

Format of HP Vectra F_PUT_BLOCK/F_GET_BLOCK command block:
Offset	Size	Description	(Table 2368)
 00h	DWORD	data transfer address
 04h	WORD	number of blocks
 06h	DWORD	block address (some devices only use low word)
--------b-6F0A--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_XCHGFREE" - EXCH VALUES WITH FREE VECTOR
	AH = 0Ah
	BP = 0012h (driver ID for V_SYSTEM)
	DX = new value for DS
	ES:DI -> new CS:IP entry point
Return: AH = status (00h,F6h) (see also #2346)
	    00h successful
		BX = vector address used
		DX = old value for DS
		ES:DI -> old CS:IP entry point
	BP,DS destroyed
Desc:	exchange the supplied entry point and DS with the values in the next
	  free entry in the HP_VECTOR_TABLE
Note:	returns AH=F6h if no more reserved vectors are available
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=06h/BP=0012h,AH=08h/BP=0012h
SeeAlso: AH=0Ch/BP=0012h
--------b-6F0A--BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INQUIRE_FIRST" - GET PHYSICAL DRIVER VECTOR
	AH = 0Ah
	BP = 002Ah (driver ID for V_SINPUT)
Return: AH = status (see #2346)
	BX = vector address for first HP-HIL device
	BP,DS destroyed
Note:	all seven HP-HIL devices use consecutive vectors in the
	  HP_VECTOR_TABLE	
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=002Ah,AH=06h/BP=002Ah,AH=08h/BP=002Ah
SeeAlso: AH=0Ch/BP=002Ah
--------b-6F0A--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_DEF_MASKS" - DEFINE GRAPHICS CURSOR MASKS
	AH = 0Ah
	BP = 005Ah (driver ID for V_STRACK)
	BH = width of save area in bytes
	BL = hot-spot X coordinate
	CH = height in scan lines
	CL = hot-spot Y coordinate
	ES:SI -> sprite mask (screen mask followed by XOR sprite mask)
Return: AH = status (see #2346)
	BP,DS destroyed
Note:	the save area is one byte wider than the actual sprite mask; the total
	  size of the sprite is at most 144 bytes
SeeAlso: AH=00h"HP Vectra",AH=04h"F_TRACK_INIT",AH=08h"F_TRACK_OFF"
SeeAlso: AH=0Ch"F_SET_LIMITS_X",AH=10h"F_PUT_SPRITE",AH=12h"F_REMOVE_SPRITE"
--------N-6F0B-------------------------------
INT 6F - 10NET - LOCK SEMAPHORE, RETURN IMMEDIATELY
	AH = 0Bh
	AL = drive number or 0
	ES:SI = Ethernet address or 0
	DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see #2369)
Note:	same as INT 60/AH=12h
SeeAlso: AH=0Ch"10NET",INT 60/AH=12h

(Table 2369)
Values for 10NET status:
 00h	successful
 01h	semaphore currently locked
 02h	server not responding
 03h	invalid semaphore name
 04h	semaphore list is full
 05h	invalid drive ID
 06h	invalid Ethernet address
 07h	not logged in
 08h	write to network failed
 09h	semaphore already logged in this CPU
SeeAlso: #2342
Index:	error codes;10-Net|10-Net;error codes
--------N-6F0C-------------------------------
INT 6F - 10NET - UNLOCK SEMAPHORE
	AH = 0Ch
	AL = drive number or 0
	ES:SI = Ethernet address or 0
	DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see also #2369)
	    01h semaphore not locked
Note:	same as INT 60/AH=13h
SeeAlso: AH=0Bh,INT 60/AH=13h
--------b-6F0C-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_GET_BUFFER" - READ A BUFFER OF DATA FROM DEVICE
	AH = 0Ch
	BP = driver ID (see #2343) for V_HPHIL (0114h), others
	CX = number of bytes or blocks to read
	DS:SI -> buffer for received data
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
SeeAlso: AH=08h"F_GET_BYTE",AH=0Ah"F_PUT_BUFFER",AH=0Ch"F_GET_BLOCK"
SeeAlso: AH=10h"F_GET_WORD"
--------b-6F0C-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_GET_BLOCK" - READ BLOCKS OF DATA FROM DEVICE
	AH = 0Ch
	BP = driver ID (see #2343)
	DH = device major number
	DL = device minor number
	ES:DI -> command block (see #2368)
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	BX = operation status
	BP,DS destroyed
SeeAlso: AH=08h"F_GET_BYTE",AH=0Ah"F_PUT_BLOCK",AH=0Ch"F_GET_BUFFER"
SeeAlso: AH=10h"F_GET_WORD"
--------b-6F0C--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FIXOWNDS" - INSTALL VALUES IN FIXED VECTOR
	AH = 0Ch
	BP = 0012h (driver ID for V_SYSTEM)
	BX = vector address used
	ES:DI -> new CS:IP entry point
Return: AH = status (00h) (see #2346)
	BP,DS destroyed
Note:	on installation, the given entry point will be invoked with an SF_INIT
	  call (see AX=0200h"SF_INIT"), which should return the routine's DS
	  in BX.  If the SF_INIT call returns with error code FEh, the power-on
	  self-test sequence will be called.
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=06h/BP=0012h,AH=08h/BP=0012h
SeeAlso: AH=0Eh/BP=0012h,AH=12h/BP=0012h
--------b-6F0C--BP002A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INQUIRE_ENTRY" - GET GID DRIVER ENTRY POINT
	AH = 0Ch
	BP = 002Ah (driver ID for V_SINPUT)
Return: AH = status (see #2346)
	ES:BX -> physical GID driver CS:IP
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AX=0400h/BP=002Ah,AH=06h/BP=002Ah,AH=08h/BP=002Ah
SeeAlso: AH=0Ah/BP=002Ah
--------b-6F0C--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SET_LIMITS_X" - SET HORIZONTAL TRACKING LIMITS
	AH = 0Ch
	BP = 005Ah (driver ID for V_STRACK)
	CX = minimum X coordinate
	DX = maximum X coordinate
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=005Ah,AH=08h/BP=005Ah,AH=0Eh/BP=005Ah
SeeAlso: AH=10h/BP=005Ah,AH=12h/BP=005Ah,INT 33/AX=0007h
--------N-6F0D-------------------------------
INT 6F - 10NET - "WHO" - ENUMERATE USERS ON NETWORK
	AH = 0Dh
	AL = type code
	    01h return superstations only
	    02h return non-superstations only
	    otherwise return all
	CX = length of data buffer
	DS:DX -> array of records to be filled (see #2370)
Return: CL = number of records returned (responding stations)
SeeAlso: AH=16h,AH=8Dh

Format of station record:
Offset	Size	Description	(Table 2370)
 00h 12 BYTEs	node ID
 0Ch	BYTE	station flags (see #2371)
---if AL = 01h---
 0Dh	BYTE	version number
 0Eh	WORD	level number of 10Net software in responding node
---if AL = 02h---
 0Dh  8 BYTEs	user ID
 15h	BYTE	version number
 16h	WORD	level number

Bitfields for station flags:
Bit(s)	Description	(Table 2371)
 1	workstation
 2	superstation
 3	xgate
 4	active gate
--------N-6F0E-------------------------------
INT 6F - 10NET - SPOOL/PRINT
	AH = 0Eh
	DS:DX -> spool/print record (see #2373)
Return:	CF clear if successful
	CF set on error
	    AX = error code (see also #2342)
		17FFh device not mounted
		18FFh already spooling to named device

(Table 2372)
Values for 10NET spooler operation code:
 0000h	initiate spool
 0001h	abort print
 0002h	close spool
 0003h	delete spool
 0004h	print
 0005h	get report info
 0006h	set chat template
 0007h	queue
 0008h	return queue
 0009h	queue non-spooled file for printing

Format of 10NET Spool/Print record:
Offset	Size	Description	(Table 2373)
 00h	WORD	operation code (see #2372)
 02h 11 BYTEs	file name in FCB format
---if operation code = 00h or 06h---
 0Dh	BYTE	notification flags (see #2374)
 0Eh	BYTE	days to keep (FFh=forever)
 0Fh	BYTE	bits 0,1: device (1=LPT1)
		bits 4-7: remote drive to store spool file (1=A,...)
 10h	WORD	length of following data area
 12h  N BYTEs	up to 64 bytes of description
---if operation code = 03h---
 0Dh  8 BYTEs	user ID to associate with filename
---if operation code = 04h---
 0Dh	WORD	block number
 0Fh  8 BYTEs	user ID to associate with filename
---if operation code = 05h---
 0Dh	BYTE	RRN to start retrieve
 0Eh	BYTE	bits 0,1: local print device (LPTx)
		bit 3: if set, return entries for all users
 0Fh	WORD	length of following area
 11h  N BYTEs	up to 1500 bytes to receive $SCNTL records returned
---if operation code = 07h---
 0Dh	BYTE	queue number
 0Eh	BYTE	bits 0,1: local print device (LPTx)
 0Fh	WORD	number of bytes of test print to be done
 11h	BYTE	code:
		01h print device
		02h test print count
		03h prn
---if operation code = 08h---
 0Dh	BYTE	queue location or $SCNTL location to start access
		returns next item for access:
		    00h-7Fh queued items
		    80h-FEh non-queued, non-printed items
		    FFh	no more items
 0Eh	WORD	unused
 10h	WORD	length of following area
 12h  N BYTEs	up to 64 bytes to receive $SCNTL records (see #2375)
---if operation code = 09h---
 0Dh  3 BYTEs	unused
 10h  N BYTEs	path to non-spooled file to be queued for printing

Bitfields for notification flags:
Bit(s)	Description	(Table 2374)
 7	queue to top
 6	do ID page
 5	no form feed
 4	reserved
 3	explicit queuing only
 2	notify at print completion
 1	notify server operator, with reply
 0	notify at print start

Format of 10NET $SCNTL record:
Offset	Size	Description	(Table 2375)
 00h  8 BYTEs	user ID
 08h 11 BYTEs	filename in FCB format
 13h  6 BYTEs	node ID
 19h  3 BYTEs	creation date
 1Ch	BYTE	notification flags (see #2374)
 1Dh	BYTE	retention time in days
 1Eh	BYTE	printing device (LPTx)
 1Fh  3 BYTEs	date last printed (0 = never)
 22h	BYTE	device containing spoolfile
 23h	WORD	bytes to print for test print
 25h	WORD	block number to start print
 27h	BYTE	reserved
--------b-6F0E-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_PUT_WORD" - WRITE WORD OF DATA TO DEVICE
	AH = 0Eh
	BP = driver ID (see #2343)
	DX = data word
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
SeeAlso: AH=06h"F_PUT_BYTE",AH=0Ah"F_PUT_BUFFER",AH=10h"F_GET_WORD"
--------b-6F0E-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_PUT_WORD" - WRITE A WORD OF DATA
	AH = 0Eh
	BP = driver ID (see #2343)
	??? details not yet available
Return: ???
SeeAlso: AH=06h"HP Vectra",AH=0Ah"HP Vectra",AH=10h"HP Vectra"
--------b-6F0E--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FIXGETDS" - INSTALL VALUES IN FIXED VECTOR
	AH = 0Eh
	BP = 0012h (driver ID for V_SYSTEM)
	BX = vector address used
	ES:DI -> new CS:IP entry point
Return: AH = status (00h) (see #2346)
	BP,DS destroyed
Note:	on installation, the given entry point will be invoked with an SF_INIT
	  call (see AX=0200h"SF_INIT"), with the "last used DS" value in BX;
	  the routine should adjust BX and return the new value.  If the
	  SF_INIT call returns with error code FEh, the power-on self-test
	  sequence will be called.
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=06h/BP=0012h,AH=0Ch/BP=0012h
SeeAlso: AH=10h/BP=0012h,AH=14h/BP=0012h
--------b-6F0E--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SET_LIMITS_Y" - SET VERTICAL TRACKING LIMITS
	AH = 0Eh
	BP = 005Ah (driver ID for V_STRACK)
	CX = minimum Y coordinate
	DX = maximum Y coordinate
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=005Ah,AH=08h/BP=005Ah,AH=0Ch/BP=005Ah
SeeAlso: AH=10h/BP=005Ah,AH=12h/BP=005Ah,INT 33/AX=0008h
--------N-6F0F-------------------------------
INT 6F - 10NET v5.0 - "RM LOCK" - ???
	AH = 0Fh
	???
Return: ???
SeeAlso: AH=07h,AH=08h"10NET"
--------N-6F10-------------------------------
INT 6F - 10NET - ATTACH/DETACH PRINTER
	AH = 10h
	AL = subfunction
	    00h initiate spooling if LPT1 is mounted
	    01h terminate spooling if LPT1 is mounted
SeeAlso: INT 21/AX=5D08h
--------b-6F0E-------------------------------
INT 6F - HP Vectra EX-BIOS - "F_GET_WORD" - READ WORD OF DATA FROM DEVICE
	AH = 0Eh
	BP = driver ID (see #2343)
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	DX = data word
	BP,DS destroyed
SeeAlso: AH=08h"F_GET_BYTE",AH=0Ch"F_GET_BUFFER",AH=0Eh"F_PUT_WORD"
--------b-6F10--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FIXGLBDS" - INSTALL VALUES IN FIXED VECTOR
	AH = 10h
	BP = 0012h (driver ID for V_SYSTEM)
	BX = vector address used
	ES:DI -> new CS:IP entry point
Return: AH = status (00h) (see #2346)
	BP,DS destroyed
Note:	on installation, the given entry point will be invoked with an SF_INIT
	  call (see AX=0200h"SF_INIT"), with BX set to the EX-BIOS global
	  data area. If the SF_INIT call returns with error code FEh, the
	  power-on self-test sequence will be called.
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=06h/BP=0012h
SeeAlso: AH=0Ch/BP=0012h,AH=0Eh/BP=0012h,AH=12h/BP=0012h,AH=16h/BP=0012h
--------b-6F10--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_PUT_SPRITE" - DISPLAY GRAPHICS CURSOR SPRITE
	AH = 10h
	BP = 005Ah (driver ID for V_STRACK)
	BX = X coordinate
	CX = Y coordinate
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=04h"F_TRACK_INIT",AH=08h"F_TRACK_OFF"
SeeAlso: AH=12h"F_REMOVE_SPRITE",INT 33/AX=0004h
--------N-6F11-------------------------------
INT 6F - 10NET - LOCK FCB
	AH = 11h
	AL = mode
		 01h sequential
	    02h random
	    03h random block
		CX = number of records
	DS:DX -> FCB (see #0574 at INT 21/AH=0Fh)
Return:	CF clear if successful
	CF set on error
	    AX = error code (see also #2342)
		0002h file not found
SeeAlso: AH=12h,INT 21/AH=0Fh
--------N-6F12-------------------------------
INT 6F - 10NET - UNLOCK FCB
	AH = 12h
	AL = mode
	    00h sequential
	    01h random
	    02h random block
		CX = number of records
	DS:DX -> FCB (see #0574 at INT 21/AH=0Fh)
Return:	CF clear if successful
	CF set on error
	    AX = error code (see also #2342)
		0002h file not found
SeeAlso: AH=11h
--------b-6F12--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FREEOWNDS" - INSTALL VALUES IN FREE VECTOR
	AH = 12h
	BP = 0012h (driver ID for V_SYSTEM)
	ES:DI -> new CS:IP entry point
Return: AH = status (00h) (see #2346)
	BP,DS destroyed
Note:	on installation, the given entry point will be invoked with an SF_INIT
	  call (see AX=0200h"SF_INIT"), which should return the routine's DS
	  in BX.  If the SF_INIT call returns with error code FEh, the power-on
	  self-test sequence will be called.
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=0Ch/BP=0012h,AH=14h/BP=0012h
SeeAlso: AH=16h/BP=0012h,AH=18h/BP=0012h
--------b-6F12--BP005A-----------------------
INT 6F - HP Vectra EX-BIOS - "F_REMOVE_SPRITE" - REMOVE GRAPHICS CURSOR SPRITE
	AH = 12h
	BP = 005Ah (driver ID for V_STRACK)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=06h"F_TRACK_ON",AH=10h"F_PUT_SPRITE"
--------N-6F13-------------------------------
INT 6F - 10NET v3.3+ - GET REMOTE CONFIGURATION TABLE ADDRESS
	AH = 13h
	DS:DX -> node ID, 12 bytes blank-padded
Return:	CF clear if successful
	    ES:BX = configuration table address on given machine
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AH=03h
--------N-6F14-------------------------------
INT 6F - 10NET v3.3+ - GET REMOTE MEMORY
	AH = 14h
	BX:SI = address of remote memory
	CX = length (<=1024 bytes)="" ds:dx="" -=""> node ID, 12 bytes blank-padded
	DS:DI -> area to receive remote memory image
Return:	CF clear if successful
	    CX = amount of memory copied to DS:SI
	CF set on error
	    AX = error code (see #2342)
--------b-6F14--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FREEGETDS" - INSTALL VALUES IN FREE VECTOR
	AH = 14h
	BP = 0012h (driver ID for V_SYSTEM)
	ES:DI -> new CS:IP entry point
Return: AH = status (00h) (see #2346)
	BP,DS destroyed
Note:	on installation, the given entry point will be invoked with an SF_INIT
	  call (see AX=0200h"SF_INIT"), with the "last used DS" value in BX;
	  the routine should adjust BX and return the new value.  If the
	  SF_INIT call returns with error code FEh, the power-on self-test
	  sequence will be called.
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=0Eh/BP=0012h,AH=12h/BP=0012h
SeeAlso: AH=16h/BP=0012h
--------N-6F1501-----------------------------
INT 6F - 10NET v3.3+ - GET SHARED DEVICE ENTRY
	AX = 1501h
	BX = zero-based index
	DS:SI -> node ID, 12 bytes blank-padded
	ES:DI -> 85-byte buffer for shared device table entry (see #2376)
Return:	CF clear if successful
	    ES:DI buffer contains shared device table entry of BXth device
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AX=1502h,AX=1503h,AX=9501h

Format of 10NET shared device table entry:
Offset	Size	Description	(Table 2376)
 00h  8 BYTEs	device
 08h  8 BYTEs	alias
 10h 64 BYTEs	path
 50h  8 BYTEs	password
 58h	BYTE	access
 59h  4 BYTEs	mask
--------N-6F1502-----------------------------
INT 6F - 10NET v3.3+ - SET SHARED DEVICE ENTRY
	AX = 1502h
	DS:SI -> node ID, 12 bytes blank-padded
	ES:DI -> valid shared device table entry
Return:	CF clear if successful
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AX=1501h,AX=1503h,AX=9502h
--------N-6F1503-----------------------------
INT 6F - 10NET v3.3+ - DELETE SHARED DEVICE ENTRY
	AX = 1503h
	BX = zero-based index
	DS:SI -> node ID, 12 bytes blank-padded
Return:	CF clear if successful
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AX=1501h,AX=1502h,AX=9503h
--------N-6F16-------------------------------
INT 6F - 10NET v5.0 - "GL WHO" - ???
	AH = 16h
	???
Return: ???
SeeAlso: AH=0Dh
--------b-6F16--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FREEGLBDS" - INSTALL VALUES IN FREE VECTOR
	AH = 16h
	BP = 0012h (driver ID for V_SYSTEM)
	ES:DI -> new CS:IP entry point
Return: AH = status (00h) (see #2346 at INT 6F/AH=00h"HP Vectra")
	BP,DS destroyed
Note:	on installation, the given entry point will be invoked with an SF_INIT
	  call (see AX=0200h"SF_INIT"), with BX set to the EX-BIOS global
	  data area.  If the SF_INIT call returns with error code FEh, the
	  power-on self-test sequence will be called.
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=10h/BP=0012h,AH=12h/BP=0012h
SeeAlso: AH=14h/BP=0012h,AH=18h/BP=0012h
--------N-6F17-------------------------------
INT 6F - 10NET v3.3+ - MOUNT
	AH = 17h
	AL = local drive number (0=A:)
	BL = remote drive letter or '1'..'3' for LPTn or '4' or '5' for COMx
	DS:DX -> node ID, 12 bytes blank-padded
Return:	CF clear if successful
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AH=18h
--------N-6F18-------------------------------
INT 6F - 10NET v3.3+ - UNMOUNT
	AH = 18h
	AL = local drive number (0=A:)
	BL = type
	    00h	    disk
	    01h-03h LPTn
	    04h,05h COMx
Return:	CF clear if successful
	CF set on error
	    AX = error code (see #2342)
SeeAlso: AH=17h
--------b-6F18--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_INS_FIND" - FIND DRIVER BY ATTRIBUTES
	AH = 18h
	BP = 0012h (driver ID for V_SYSTEM)
	AL = sense of test (00h equal, 02h non-equal)
	BX = AND mask
	DX = pattern
	SI = first vector address to search
	DI = offset in HP header of field to test
Return: AH = status (00h,FEh) (see #2346 at INT 6F/AH=00h"HP Vectra")
	BP,DS destroyed
	---if AH=00h---
	SI = first matching vector address
Desc:	compare successive drivers' header fields starting at address SI
	  until the header field AND BX is either equal or non-equal to DX
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=0Ch/BP=0012h,AH=10h/BP=0012h
SeeAlso: AH=12h/BP=0012h,AH=16h/BP=0012h
--------N-6F19-------------------------------
INT 6F U - 10NET v5.0 - AUDIT
	AH = 19h
	???
Return: ???
SeeAlso: AH=99h
--------N-6F1A-------------------------------
INT 6F U - 10NET v5.0 - "BULL" - ???
	AH = 1Ah
	???
Return: ???
--------N-6F1B-------------------------------
INT 6F U - 10NET v5.0 - "GMOUNT" - ???
	AH = 1Bh
	???
Return: ???
--------N-6F1C-------------------------------
INT 6F U - 10NET v5.0 - "GLOGIN" - GET LOGIN LIST
	AH = 1Ch
	???
Return: ???
--------N-6F1D-------------------------------
INT 6F U - 10NET v5.0 - "TABDATA" - ???
	AH = 1Dh
	???
Return: ???
--------N-6F1E-------------------------------
INT 6F U - 10NET v5.0 - "SCHED" - ???
	AH = 1Eh
	???
Return: ???
--------b-6F1E--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_RAM_GET" - GET EX-BIOS FREE RAM AREA
	AH = 1Eh
	BP = 0012h (driver ID for V_SYSTEM)
Return: AH = status (00h) (see #2346 at INT 6F/AH=00h"HP Vectra")
	BX = last-used DS
	DX = maximum DS
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=04h/BP=0012h,AH=20h/BP=0012h,AH=22h/BP=0012h
--------N-6F1F-------------------------------
INT 6F U - 10NET v5.0 - "WHOAMI" - ???
	AH = 1Fh
	???
Return: ???
--------N-6F20-------------------------------
INT 6F U - 10NET v5.0 - ???
	AH = 20h
	???
Return: ???
--------b-6F20--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_RAM_RET" - RESERVE EX-BIOS MEMORY
	AH = 20h
	BP = 0012h (driver ID for V_SYSTEM)
	BX = new value for "last-used DS"
	DX = new value for "maximum DS"
Return: AH = status (00h) (see #2346 at INT 6F/AH=00h"HP Vectra")
	BP,DS destroyed
Note:	the F_INS_FIXGETDS and F_INS_FREEGETDS functions
	  (see AH=0Eh/BP=0012h,AH=14h/BP=0012h) also modify the values returned
	  by this call, requiring care if both methods are used to allocate
	  memory
SeeAlso: AH=00h"HP Vectra",AH=0Eh/BP=0012h,AH=14h/BP=0012h,AH=1Eh/BP=0012h
--------N-6F21-------------------------------
INT 6F U - 10NET v5.0 - ???
	AH = 21h
	???
Return: ???
--------N-6F22-------------------------------
INT 6F U - 10NET v5.0 - ???
	AH = 22h
	???
Return: ???
--------b-6F22--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_CMOS_GET" - READ CMOS MEMORY
	AH = 22h
	BP = 0012h (driver ID of V_SYSTEM)
	BL = address of CMOS byte to read
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	AL = byte read
	BP,DS destroyed
Note:	supported by ES, QS, and RS series HP Vectras
SeeAlso: AH=00h"HP Vectra",AH=1Eh/BP=0012h,AH=24h/BP=0012h
--------b-6F24--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_CMOS_RET" - WRITE CMOS MEMORY
	AH = 24h
	BP = 0012h (driver ID of V_SYSTEM)
	BL = address of CMOS byte to write
	AL = new value
Return: AH = status (see #2346)
	BP,DS destroyed
Note:	updates the CMOS checksum fields (both IBM-standard and HP checksums)
SeeAlso: AH=00h"HP Vectra",AH=22h/BP=0012h
--------b-6F2A--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_YIELD" - GIVE UP CPU TO OTHER TASKS
	AH = 2Ah
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346)
	BP,DS destroyed
Note:	this is a hook for multitasking systems
SeeAlso: AH=00h"HP Vectra",INT 15/AX=1000h,INT 2F/AX=1680h
--------b-6F30--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_CLICK_ENABLE" - TURN ON KEYCLICKS
	AH = 30h
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
Desc:	enables keyclicks and flushes any pending keyclicks
SeeAlso: AH=32h/BP=0012h,AH=34h/BP=0012h,AH=36h/BP=0012h
--------b-6F32--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_CLICK_DISABLE" - TURN OFF KEYCLICKS
	AH = 32h
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	disables keyclicks and flushes any pending keyclicks
SeeAlso: AH=00h"HP Vectra",AH=30h/BP=0012h,AH=38h/BP=0012h
--------b-6F34--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_CLICK" - GENERATE KEYCLICK
	AH = 34h
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346)
	BP,DS destroyed
Desc:	generate a keyclick if fewer than four clicks are already pending
Note:	if keyclicks are already pending, the remaining click count is
	  incremented and the function returns immediately
SeeAlso: AH=00h"HP Vectra",AH=30h/BP=0012h,AH=36h/BP=0012h,AH=3Ah/BP=0012h
--------b-6F36--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_BEEP_ENABLE" - ENABLE BEEPS
	AH = 36h
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=30h/BP=0012h,AH=34h/BP=0012h,AH=38h/BP=0012h
--------b-6F38--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_BEEP_DISABLE" - DISABLE BEEPS
	AH = 38h
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=32h/BP=0012h,AH=36h/BP=0012h
--------b-6F3A--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_BEEP" - SOUND BEEP WITH CURRENT VALUES
	AH = 3Ah
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
Desc:	make a sound of the frequency and duration defined in the EX-BIOS
	  global data area (see #2350)
SeeAlso: AH=00h"HP Vectra",AH=34h/BP=0012h,AH=36h/BP=0012h,AH=38h/BP=0012h
SeeAlso: AH=3Ch/BP=0012h,AH=3Eh/BP=0012h
--------b-6F3C--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_SET_BEEP" - SET BEEP FREQUENCY AND DURATION
	AH = 3Ch
	BP = 0012h (driver ID of V_SYSTEM)
	BX = frequency in Hz (1-25000, 0 = off)
	DX = duration in 10-microsecond increments
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=3Ah/BP=0012h,AH=3Eh/BP=0012h,#2350
--------b-6F3E--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_SND_TONE" - SOUND TONE WITH FREQ AND DURATION
	AH = 3Eh
	BP = 0012h (driver ID of V_SYSTEM)
	BX = frequency in Hz (1-25000, 0 = off)
	DX = duration in 10-microsecond increments
Return: AH = status (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=3Ah/BP=0012h,AH=3Ch/BP=0012h,AH=40h/BP=0012h
--------b-6F40--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_STR_GET_FREE_INDEX" - FIND FREE STRING INDEX
	AH = 40h
	BP = 0012h (driver ID of V_SYSTEM)
Return: AH = status (see #2346)
	BX = next free string index
	BP,DS destroyed
Desc:	get the next string index available to user programs
SeeAlso: AH=00h"HP Vectra",AH=42h/BP=0012h,AH=44h/BP=0012h,AH=46h/BP=0012h
--------b-6F42--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_STR_DEL_BUCKET" - DEL HEADER FROM BUCKET LIST
	AH = 42h
	BP = 0012h (driver ID of V_SYSTEM)
	ES:DI -> bucket header (see #2377)
Return: AH = status (00h,FEh) (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=40h/BP=0012h,AH=44h/BP=0012h

Format of HP Vectra EX-BIOS bucket header:
Offset	Size	Description	(Table 2377)
 00h	DWORD	pointer to next bucket header (FFFFh:FFFFh if last)
 04h	WORD	upper bound on string index
 06h	WORD	lower bound on string index
 08h	DWORD	pointer to array of string offset pointers
 0Ch	WORD	segment of strings
Note:	the strings pointed at by the offset pointers are byte-counted ASCIZ
	  strings
--------b-6F44--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_STR_PUT_BUCKET" - ADD HEADER TO BUCKET HDR LIST
	AH = 44h
	BP = 0012h (driver ID of V_SYSTEM)
	ES:DI -> bucket header (see #2377)
Return: AH = status (00h) (see #2346)
	BP,DS destroyed
SeeAlso: AH=00h"HP Vectra",AH=42h/BP=0012h,AH=46h/BP=0012h
--------b-6F46--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_STR_GET_STRING" - FIND STRING IN BUCKET LIST
	AH = 46h
	BP = 0012h (driver ID of V_SYSTEM)
	BX = string index
Return: AH = status (00h,other) (see #2346)
	BP,DS destroyed
	---if successful---
	CX = length of string (excluding count byte and terminating NUL)
	DS:SI -> header for string
	ES:DI -> found string
SeeAlso: AH=00h"HP Vectra",AH=44h/BP=0012h,AH=48h/BP=0012h
--------b-6F48--BP0012-----------------------
INT 6F - HP Vectra EX-BIOS - "F_STR_GET_INDEX" - GET INDEX FOR STRING
	AH = 48h
	BP = 0012h (driver ID of V_SYSTEM)
	ES:DI -> ASCIZ string
Return: AH = status (00h,other) (see #2346 at AH=00h"HP Vectra")
	BP,DS destroyed
	---if successful---
	BX = index for the given string
SeeAlso: AH=00h"HP Vectra",AH=40h/BP=0012h,AH=46h/BP=0012h
--------N-6F80-------------------------------
INT 6F - 10NET v5.0 - LOGIN
	AH = 80h
	DS:DX -> login record (see #2378)
Return: CF clear if successful
	    BL = number of days until password expires (00h = never)
	    CL = security level
	CF set on error
	    AX = status (see #2342)
SeeAlso: AH=00h,AH=81h

Format of 10NET login record:
Offset	Size	Description	(Table 2378)
 00h  8 BYTEs	user name
 08h  8 BYTEs	password
 10h 15 BYTEs	server node ID
 1Fh  8 BYTEs	new password
 27h	BYTE	invoke mode (00h command line, 01h interactive)
--------N-6F81-------------------------------
INT 6F - 10NET v5.0 - LOGOUT
	AH = 81h
	DS:DX -> server node ID (DX=0000h for universal logout)
Return: AX = status (see #2342)
SeeAlso: AH=01h,AH=80h
--------N-6F8A-------------------------------
INT 6F - 10NET v5.0 - CHAT
	AH = 8Ah
	DS:BX -> chat parameters (see #2379)
	DS:DX -> chat message (see #2380)
Return: CF clear if successful
	CF set on error
	    AX = status (see #2342)
SeeAlso: AH=0Ah

Format of 10NET chat parameters:
Offset	Size	Description	(Table 2379)
 00h  8 BYTEs	sender's user name
 08h  8 BYTEs	destination user name
 10h 15 BYTEs	destination node (0 if broadcast-style chat)

Format of 10NET chat message:
Offset	Size	Description	(Table 2380)
 00h	WORD	message length
 02h  N BYTEs	chat message contents
--------N-6F8D-------------------------------
INT 6F - 10NET v5.0 - "WHO" - ENUMERATE USERS ON NETWORK
	AH = 8Dh
	BX = service mask (see #2381)
	CX = length of buffer
	DS:DX -> buffer for array of Who data structures (see #2382)
Return: CF clear if successful
	    CX = number of nodes matching service mask
	    DS:DX buffer filled
	CF set on error
	    AX = status (see #2342)
SeeAlso: AH=0Dh

Bitfields for 10NET service mask:
Bit(s)	Description	(Table 2381)
 0	workstation
 1	file server
 2	print server
 3	de-spool server

Format of 10NET Who data structure:
Offset	Size	Description	(Table 2382)
 00h  8 BYTEs	user name
 08h 15 BYTEs	node ID
 17h  3 BYTEs	unique portion of Ethernet address
 1Ah	BYTE	Who group number
 1Bh	WORD	service mask (see #2381)
 1Dh	DWORD	serial number
 21h	BYTE	maximum concurrent users with same serial number allowed on net
 22h	BYTE	chat mask (see #2383)
 23h	BYTE	internal system bits (see #2384)
 24h  9 BYTEs	version number in format MM.mm.xxx
 2Dh	BYTE	number of shared directories
 2Eh	BYTE	number of shared printer queues

Bitfields for 10NET chat mask:
Bit(s)	Description	(Table 2383)
 0	chat permitted
 1	bell enabled
 2	chat keyboard initiated
 3	in INT 16 handler
 4	in Get Input
 5	display has timed out
 6	chat is idle

Bitfields for 10NET internal system bits:
Bit(s)	Description	(Table 2384)
 0	submit permitted
 1	submit initiated
 2	submit executing
 3	internal client call/chat/spool/autospool
 4	in spool termination
 5	print permitted
 6	waiting for keyboard input
--------N-6F9501-----------------------------
INT 6F - 10NET v5.0 - GET SHARED DEVICE ENTRY
	AX = 9501h
	BX = zero-based index
	DS:SI -> server's node ID
	ES:DI -> buffer for shared device structure (see #2385)
Return: CF clear if successful
	CF set on error
		 AX = status (see #2342)
SeeAlso: AX=1501h,AX=9502h,AX=9503h,AX=9504h

Format of 10NET shared device structure:
Offset	Size	Description	(Table 2385)
 00h  8 BYTEs	alias
 08h	BYTE	type (02h modem, 03h print queue, 04h directory)
 09h	BYTE	access rights
		bit 0: read
		bit 1: write
		bit 2: create
 0Ah  8 BYTEs	password
 12h 32 BYTEs	comment
---directory---
 32h 64 BYTEs	pathname of shared directory
---print queue---
 32h	BYTE	notification bit mask (see #2386)
 33h	BYTE	job control bit mask (see #2387)
 34h	WORD	number of days to retain file
 36h	WORD	test print length
 38h	BYTE	number of copies to print
 39h	BYTE	compression algorithm
 3Ah	BYTE	tab width (00h = don't expand)
 3Bh	BYTE	priority
 3Ch	WORD	time to open queue (FFFFh = always)
 3Eh	WORD	time to close queue
 40h	WORD	pause following queue switch, in clock ticks
 42h	WORD	pause between print jobs, in clock ticks
 44h	BYTE	associate queue file existence mask
		bit 0: queue switch file exists
		bit 1: initiate file exists
		bit 2: abort file exists
 45h  6 BYTEs	character sequence for page eject
 4Bh	BYTE	status of print queue
		bit 0: queue is closed
 4Ch	WORD	number of jobs on queue
 4Eh	WORD	offset of next print job to be dispatched (FFFFh = none)
 50h	BYTE	number of print devices in printer pool
 51h	WORD	offset of first print device structure (FFFFh if empty)

Bitfields for notification flags:
Bit(s)	Description	(Table 2386)
 0	user at print start
 1	operator at start, with reply
 2	user at print completion
 3	operator at completion, with reply
 4	user on queue switch
 5	operator on queue switch, with reply
 6	user on print error

Bitfields for 10NET job control mask:
Bit(s)	Description	(Table 2387)
 0	print banner page
 1	eject page at end of job
 2	mark as "held" (queue but don't print)
 3	rush job (queue at top)
 4	overwrite file with zeros before deletion
 5	hyperspool if possible
--------N-6F9502-----------------------------
INT 6F - 10NET v5.0 - SET SHARED DEVICE ENTRY
	AX = 9502h
	DS:SI -> server's node ID
	ES:DI -> shared device structure (see #2385)
Return: CF clear if successful
	CF set on error
	    AX = status (see #2342)
SeeAlso: AX=1502h,AX=9501h,AX=9503h,AX=9504h
--------N-6F9503-----------------------------
INT 6F - 10NET v5.0 - DELETE SHARED DEVICE
	AX = 9503h
	BX = zero-based index
	DS:SI -> server's node ID
Return: CF clear if successful
	CF set on error
	    AX = status (see #2342)
SeeAlso: AX=1503h,AX=9501h,AX=9502h,AX=9504h
--------N-6F9504-----------------------------
INT 6F - 10NET v5.0 - ENUMERATE USERS OF SHARED DEVICE
	AX = 9504h
	BX = zero-based shared device index
	CX = zero-based user index
	DS:SI -> server's node ID
Return: CF clear if successful
	    ES:DI -> node ID of the CX'th user of the BX'th device
	CF set on error
	    AX = status (see #2342)
SeeAlso: AX=9501h,AX=9502h,AX=9503h
--------N-6F99-------------------------------
INT 6F - 10NET v5.0 - AUDIT
	AH = 99h
	DS:SI -> server's node ID
	ES:DI -> data to be appended to audit trail file (max 106 bytes)
Return: CF clear if successful
	CF set on error
	    AX = status (see #2342)
SeeAlso: AH=19h,AH=9Ch
--------N-6F9C-------------------------------
INT 6F - 10NET v5.0 - GET LOGIN LIST
	AH = 9Ch
	BX = zero-based index
Return: CF clear if successful
	    DS:DI -> BX'th node ID that caller's machine is logged into
	CF set on error
	    AX = status (see #2342)
--------H-70---------------------------------
INT 70 C - IRQ8 - CMOS REAL-TIME CLOCK
Desc:	this interrupt is called when the real-time clock chip generates an
	  alarm or periodic interrupt, among others.  The periodic interrupt
	  occurs 1024 times per second.
Nots:	many BIOSes turn off the periodic interrupt in the INT 70h handler
	  unless in an event wait (see INT 15/AH=83h or INT 15/AH=86h).
	may be masked by setting bit 0 on I/O port A1h
SeeAlso: INT 08,INT 0F"HP 95LX",INT 15/AH=01h"Amstrad",INT 15/AH=83h
SeeAlso: INT 15/AH=86h,INT 1A/AH=02h,INT 58"DESQview"
--------v-70---------------------------------
INT 70 - VIRUS - "Stupid" - ORIGINAL INT 21h VECTOR
Note:	the virus sets this interrupt to be the same as INT 21, and then
	  performs only INT 70 calls; since INT 70 is also generated by the
	  real-time clock on the PC/AT and higher, this could cause random
	  actions on an infected system
SeeAlso: INT 6B"VIRUS",INT 9E"VIRUS",INT E0"VIRUS"
--------H-71---------------------------------
INT 71 C - IRQ9 - REDIRECTED TO INT 0A BY BIOS
Notes:	may be masked by setting bit 1 on I/O port A1h
	the default BIOS handler invokes INT 0A for compatibility, since the
	  pin for IRQ2 on the PC expansion bus became the pin for IRQ9 on the
	  AT expansion bus.
	under DESQview, only the INT 15h vector and BASIC segment address (the
	  word at 0000h:0510h) may be assumed to be valid for the handler's
	  process
SeeAlso: INT 0A,INT 59
--------H-72---------------------------------
INT 72 C - IRQ10 - RESERVED
Note:	may be masked by setting bit 2 on I/O port A1h
SeeAlso: INT 5A
--------H-73---------------------------------
INT 73 C - IRQ11 - RESERVED
Note:	may be masked by setting bit 3 on I/O port A1h
SeeAlso: INT 5B
--------H-74---------------------------------
INT 74 C - IRQ12 - POINTING DEVICE (PS)
Notes:	may be masked by setting bit 4 on I/O port A1h
	under DESQview, only the INT 15h vector and BASIC segment address (the
	  word at 0000h:0510h) may be assumed to be valid for the handler's
	  process
SeeAlso: INT 33,INT 5C
--------H-75---------------------------------
INT 75 C - IRQ13 - MATH COPROCESSOR EXCEPTION (AT and up)
Desc:	redirected to INT 02 by the BIOS, for compatibility with the PC
Notes:	may be masked by setting bit 5 on I/O port A1h
	not all clones wire the coprocessor to generate this IRQ; some systems
	  generate an NMI (see INT 02) or assert the -ERROR pin on the CPU
	  (see INT 10"COPROCESSOR")
	under DESQview, only the INT 15h vector and BASIC segment address (the
	  word at 0000h:0510h) may be assumed to be valid for the handler's
	  process
SeeAlso: INT 10"COPROCESSOR",INT 5D
--------H-76---------------------------------
INT 76 C - IRQ14 - HARD DISK CONTROLLER OPERATION COMPLETE (AT and later)
Notes:	may be masked by setting bit 6 on I/O port A1h
	on the PS/2, this interrupt is designed to be shared with other
	  devices that produce an operation-complete interrupt, though
	  the only current user is the hard disk
SeeAlso: INT 0E"IRQ6",INT 15/AH=91h,INT 5E
--------H-77---------------------------------
INT 77 C - IRQ15 - RESERVED (AT,PS)
Note:	may be masked by setting bit 7 on I/O port A1h
SeeAlso: INT 5F
--------H-77---------------------------------
INT 77 C - IRQ15 - POWER CONSERVATION (Compaq SLT/286)
Note:	may be masked by setting bit 7 on I/O port A1h
SeeAlso: INT 15/AX=4600h,INT 5F
--------E-78---------------------------------
INT 78 - UofSalford DBOS DOS extender - API
	AH = function
	    00h (PB) display 32-bit memory specified by command argument
	    01h (PT) display 32-bit instruction(s) specified by command arg
	    02h specify offset to subsequent PB and PT commands
	    03h switch to protected mode
		DWORD following INT instruction point to map; protected-mode
			  entry point is immediately following the DWORD
		Return: never
		Note:	if bit 31 of the map address is set, only a stub was
			  loaded by DOS and DBOS will load the entire program
		 04h specify that subsequent load (AH=03h) should leave program in
		  memory
	    05h release program from memory
	    06h set break point at address and option count from commandline
	    07h resume program execution
	    08h single-step program
	    09h set read/write breakpoint using 386 debug registers
	    0Ah set write breakpoint using 386 debug register
	    0Bh set memory byte to new value
	    0Ch display CPU registers
	    0Dh run until specified program address reached
	    0Fh print trace from program map
	    10h specify an offset using a map symbol
	    14h print memory without any offset
	    18h switch DBOS into/out of test mode (ON/OFF commandline args)
	    1Dh get address of real/protected-mode communication buffer
		Return: ES:BP -> comm buffer
	    1Eh set real-mode memory size (specify how much real-mode memory
		  to leave free when running FTN77 programs)
	    22h uninstall DBOS
	    24h force DBOS to emulate coprocessor instructions
	    26h set named DBOS switches from commandline
	    27h reset named DBOS switched from commandline
		 2Ah set list of dynamic link libraries to contents of commandline
		  file
	    35h specify that subsequent load (AH=03h) should stop at first
		  instruction
Return: ???
Notes:	DBOS supports functions 00h through 50h; many of these functions
	  provide a low-level debugging interface
	command arguments are read from the calling program's PSP
SeeAlso: INT 79"DBOS"
Index:	uninstall;DBOS DOS extender
--------E-78---------------------------------
INT 78 - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ0
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 08,INT 10/AH=FFh"GO32",INT 79"GO32"
--------A-78---------------------------------
INT 78 R - AutoCAD Device Interface - PLOTTER - SEND COMMAND
	AX = function
	    0001h begin plot
		BX = file level
		    0000h ASCII file
		    0001h binary file
		    0002h AutoCAD DXB file
		    0003h installed ADI driver
	    0002h end plot (close plotter)
	    0003h move (pen up)
		BX = new X position
		CX = new Y position
	    0004h move (pen down)
		BX = new X position
		CX = new Y position
	    0005h select pen
		BX = pen number
	    0006h select drawing speed
		BX = drawing speed N
	    0007h select line style
		BX = line style N
	    0008h raise pen
	    0009h abort plot
Return: AX = 0000h (may be used for driver status in future releases)
SeeAlso: INT 79"AutoCAD",INT 7A/AX=0001h"AutoCAD",INT 7B/AX=8001h"AutoCAD"
--------d-78---------------------------------
INT 78 - ADP-60 IDE controller - ORIGINAL INT 13
SeeAlso: INT 79"ADP-60"
--------s-78-------------------------------
INT 78 - ULTRAMID - API
	AX = function
	--- digital functions ---
	    0000h start digital
		ES:DI -> Sound Structure
		Return: AX = voice used
	    0001h play next buffer
		ES:DI -> Sound Structure
	    0002h set panning
		BX = pan
		CX = voice
	    0003h set volume
		BX = volume
		CX = voice
	    0004h set rate (not yet implemented)
	    0005h pause digital
		CX = voice
	    0006h restart digital
		CX = voice
	    0007h stop digital
		CX = voice
	    0008h get digital position
		CX = voice
		Return: AX:DX -> position in PC buffer
	    0009h get voice status (not yet implemented)
	--- MIDI functions ---
	    000Ah load MIDI patches
		ES:DI -> MIDI track just after the Mtrk header
		BX:DX = length of MIDI track
	    000Bh load XMIDI patches
		ES:DI -> event buffer including the EVNT header
	    000Ch load patch
		CX = MIDI number of patch
	    000Dh unload patch
		CX = MIDI number of patch
	    000Eh start sequence
	    000Fh unload all patches
	    0010h MIDI out byte
		CX = MIDI byte
	    0011h MIDI out string
		CX = length
		ES:DI -> string of MIDI data
	    0012h all notes off
	--- resource functions ---
	    0013h allocate memory
		BX:DX = size of GUS memory needed
		Return: AX:DX = address of memory, or 0000:0000 if not avaiable
	    0014h free memory
		BX:DX = address of memory to be freed
	    0015h uninstall
	    0016h sem enter
	    0017h sem leave
	    0018h add external semaphore 
		BX:DX -> external semaphore
	    0019h clear external semaphore
		BX:DX -> external semaphore
	    001Ah application start
	    001Bh application end
Program: UltraMid is a TSR from Advanced Gravis to play MIDI and digital data
	   through the Gravis UltraSound (GUS)
Range:	INT 78 to INT 7F
Notes:	the installation check is testing for the signature "ULTRAMID" at
	  offset 0103h in the interrupt handler's segment
--------d-7800-------------------------------
INT 78 - TARGA.DEV - CMC International SCSI device driver - SET I/O PORT
	AH = 00h
	DX = interface board I/O port
Return: CF set on error
	    AL = error code (see #2388)
Note:	if this routine is not called, the port is the driver's default
	  (usually 0280h or 0300h)
	an installation check is performed by TARGA.DEV upon initialization
	  by checking for the string "SCSI" at offset 03h into the interrupt
	  handler
SeeAlso: AH=01h,AH=02h
Index:	installation check;TARGA.DEV

(Table 2388)
Values for TARGA.DEV error code:
 00h	illegal command given to SCSI code
 01h	invalid I/O port specified (must be from 100H to 3F8H, and must be on
	  an 8-port boundary)
 02h	invalid DMA channel specified (must be from 1 to 3)
 03h	invalid SCSI board number specified (must be from 0 to 7)
 04h	error from data register test during self-test
 05h	SCSI input signals not all 0 when SCSI RST activated
 06h	SCSI input signals not all 0 before selecting a SCSI device
 07h	BSY signal is active; SCSI bus is busy
 08h	SCSI board not selected, BSY signal did not come on in response to
	  raising SEL
 09h	time-out waiting for status state, signifying end of DMA transfer
----------7800-------------------------------
INT 78 - HugeRealMode Driver - API
	AH = 00h
	AL = function
	    00h installation check
		Return: AX = DBCA if installed
	    01h get entry point
		Return: ES:BX -> far call entry point
Program: the HugeRealMode driver was published in the German DOS Extra Nr. 20
	  (1992), and makes a 4G flat address space (for both data and code)
	  available to real-mode DOS programs
--------d-7801-------------------------------
INT 78 - TARGA.DEV - GET I/O PORT
	AH = 01h
Return: DX = current interface board I/O port
SeeAlso: AH=00h,AH=03h"TARGA"
--------d-7802-------------------------------
INT 78 - TARGA.DEV - SET DMA CHANNEL
	AH = 02h
	AL = interface board DMA channel
Return: CF set on error
	AL = error code (see #2388)
Note:	if this routine is not called, the DMA channel is the driver's default
	  (usually 3)
SeeAlso: AH=00h,AH=03h"TARGA"
--------d-7803-------------------------------
INT 78 - TARGA.DEV - GET DMA CHANNEL
	AH = 03h
Return: AL = current interface board DMA channel
SeeAlso: AH=01h,AH=02h
--------d-7804-------------------------------
INT 78 - TARGA.DEV - SET SCSI DEVICE NUMBER
	AH = 04h
	AL = SCSI device number
Return: CF set on error
	AL = error code (see #2388)
Note:	if this routine is not called, the device number used is the driver's
	  default (usually 0)
SeeAlso: AH=02h,AH=05h
--------d-7805-------------------------------
INT 78 - TARGA.DEV - GET SCSI DEVICE NUMBER
	AH = 05h
Return: AL = current SCSI device number
SeeAlso: AH=03h"TARGA",AH=04h
--------d-7806-------------------------------
INT 78 - TARGA.DEV - SET/CLEAR EARLY RETURN MODE
	AH = 06h
	AL = new state
	    00h clear early return mode
	    01h set early return mode
Note:	if early return mode is set then SCSI will return with no errors
	  when the last DMA transfer is started in a call with AH=13h or AH=14h
	if this routine is not called, early return mode is cleared
SeeAlso: AH=13h,AH=14h,AH=15h
--------d-7808-------------------------------
INT 78 - TARGA.DEV - INTERFACE BOARD SELF-TEST
	AH = 08h
Return: CF set on error
	AL = error code (see #2388)
Note:	the SCSI bus is also reset
SeeAlso: AH=09h
--------d-7809-------------------------------
INT 78 - TARGA.DEV - RESET SCSI BUS
	AH = 09h
Return: AL = error code if carry set (see #2388)
SeeAlso: AH=08h
--------d-7810-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND
	AH = 10h
	DS:SI -> command bytes (see #2389)
Return: AH = SCSI status byte
	CF clear if successful
	    AL = SCSI message byte
	CF set on error
	    AL = error code (see #2388)
SeeAlso: AH=11h,INT 21/AX=4403h"ST-01"

Format of SCSI Command:
Offset	Size	Description	(Table 2389)
 00h	BYTE	length of command
 01h	???	command bytes
--------d-7811-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND, RECEIVE DATA (PROGRAMMED I/O)
	AH = 11h
	DS:SI -> command bytes (see #2390)
	ES:BX -> data storage area
	CX = number of data bytes to transfer
Return: AH = SCSI status byte
	CF clear if successful
	    AL = SCSI message byte
	CF set on error
	    AL = error code (see #2388)
Note:	this command receives data internally one byte at a time
SeeAlso: AH=10h,AH=13h

Format of TARGA.DEV SCSI Command:
Offset	Size	Description	(Table 2390)
 00h	BYTE	length of command
 01h	???	command bytes
--------d-7812-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND AND DATA (PROGRAMMED I/O)
	AH = 12h
	DS:SI -> command bytes (see #2391)
	ES:BX -> data storage area
	CX = number of data bytes to transfer
Return: AH = SCSI status byte
	CF clear if successful
	    AL = SCSI message byte
	CF set on error
	    AL = error code (see #2388)
Note:	this command sends data internally one byte at a time
SeeAlso: AH=14h

Format of TARGA.DEV SCSI Command:
Offset	Size	Description	(Table 2391)
 00h	BYTE	length of command
 01h	???	command bytes
--------d-7813-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND, RECEIVE DATA (DMA)
	AH = 13h
	DS:SI -> command bytes (see #2392)
	ES:BX -> data storage area
	DX:CX = number of data bytes to transfer
Return: AH = SCSI status byte (if early return mode is clear)
	CF clear if successful
	    AL = SCSI message byte (if early return mode is clear)
	CF set on error
	    AL = error code (see #2388)
Note:	this command receives data using DMA
SeeAlso: AH=11h,AH=12h

Format of TARGA.DEV SCSI Command:
Offset	Size	Description	(Table 2392)
 00h	BYTE	length of command
 01h	???	command bytes
--------d-7814-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND AND DATA (DMA)
	AH = 14h
	DS:SI -> command bytes (see #2393)
	ES:BX -> data storage area
	DX:CX = number of data bytes to transfer
Return: AH = SCSI status byte (if early return mode is clear)
	CF clear if successful
	    AL = SCSI message byte (if early return mode is clear)
	CF set on error
	    AL = error code (see #2388)
Note:	this command sends data using DMA
SeeAlso: AH=12h,AH=13h

Format of TARGA.DEV SCSI Command:
Offset	Size	Description	(Table 2393)
 00h	BYTE	length of command
 01h	???	command bytes
--------d-7815-------------------------------
INT 78 - TARGA.DEV - FINISH DATA TRANSFER (DMA)
	AH = 15h
Return: AH = SCSI status byte
	CF clear if successful
	    AL = SCSI message byte
	CF set on error
	    AL = error code (see #2388)
Note:	if AH=06h was previously called to set the early return mode, this
	  function finishes a command AH=13h or AH=14h which returned before
	  the last DMA transfer was finished
SeeAlso: AH=06h,AH=13h,AH=14h
--------V-79---------------------------------
INT 79 - AVATAR.SYS - FAST GET KEYSTROKE
Return: CF set if no keystroke available
	    AX = FFFFh
	CF clear if key pressed
	    AX = keystroke
Program: AVATAR.SYS is a CON driver by George Adam Stanislav which interprets
	  AVATAR command codes just as ANSI.SYS interprets ANSI commands
Note:	if a keystroke is available, it is removed from the keyboard buffer
	  before being returned
SeeAlso: INT 29,INT 2F/AX=1A00h/BX=4156h
--------E-79---------------------------------
INT 79 - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ1
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 09,INT 78"GO32",INT 7A"GO32"
--------d-79---------------------------------
INT 79 U - ADP-60 IDE adapter - ???
SeeAlso: INT 78"ADP-60"
--------E-79---------------------------------
INT 79 - DBOS DOS Extender
	details not available
Desc:	this interrupt is used by an MS Windows virtual device driver with
	  which the DBOS extender communicates when run inside a Windows
	  Enhanced Mode DOS box
SeeAlso: INT 78"DBOS"
--------A-790001-----------------------------
INT 79 R - AutoCAD Device Interface - DIGITIZER - INITIALIZE
	AX = 0001h
	BX = interface level (0001h)
Return: AX = status (0000h initialization failed, 0001h init successful)
	BX = digitizer type
	    0000h relative pointing device (mouse, etc.)
	    0001h digitizing tablet
	CX = digitizer dataflow type
	    0000h continuous
	    0001h pauses between packets
SeeAlso: AX=0002h,AX=0003h,INT 7A/AX=0001h"AutoCAD"
--------A-790002-----------------------------
INT 79 R - AutoCAD Device Interface - DIGITIZER - TERMINATE
	AX = 0002h
SeeAlso: AX=0001h,AX=0003h
--------A-790003-----------------------------
INT 79 R - AutoCAD Device Interface - DIGITIZER - GET DIGITIZER STATUS
	AX = 0003h
Return: AX = status
	    0000h nothing
	    0002h tracking point (no button pressed)
		BX = X coordinate
		CX = Y coordinate
	    0003h picked point (button 0,A,B,C,D pressed)
		BX = X coordinate
		CX = Y coordinate
	    0004h button pick
		BX = button number
	    0005h button and coordinates
		BX = button number
		CX = X coordinate
		DX = Y coordinate
SeeAlso: AX=0001h,AX=0002h
--------N-7A---------------------------------
INT 7A U - Topware Network Operating System - ???
	AL = ???
	???
Return: ???
SeeAlso: INT 21/AX=FF00h"Topware",INT 2F/AX=FF00h
--------N-7A---------------------------------
INT 7A - X.PC Packet software interface
	ES:BX -> parameter block
SeeAlso: INT 60/AX=01FFh
--------E-7A---------------------------------
INT 7A - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ2
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 0A,INT 79"GO32",INT 7B"GO32"
--------P-7A---------------------------------
INT 7A O - PRINDIR - API (moved to INT 7C)
SeeAlso: INT 7C"PRINDIR"
--------N-7A---------------------------------
INT 7A - Novell NetWare - LOW-LEVEL API - Notes
Note:	this interrupt is used for IPX/SPX access in NetWare versions through
	  2.0a; in later versions, you should use INT 2F/AX=7A00h to get an
	  entry point even though INT 7A still exists.	For both INT 7A and
	  the FAR entry point, BX contains the function number; IPX is
	  sometimes called internally with BX bit 15 set, which causes the
	  handler to bypass some initial checks and an optional call to the
	  IPX Windows support handler set with INT 2F/AX=7AFFh/BX=0000h
	  (see #1619)
SeeAlso: INT 2F/AX=7A00h,INT 64"Novell",INT 7A/BX=0000h
--------N-7A----BX0000-----------------------
INT 7A - Novell NetWare - IPX Driver - OPEN SOCKET
	BX = 0000h
	AL = socket longevity
	    00h open until close or terminate
	    FFh open until close
	DX = socket number (high byte in DL)
	    0000h dynamic allocation
	    else  socket to open (see #2394)
Return: AL = return code
	    00h success
		DX = socket number
	    FEh socket table full
	    FFh socket already open
Notes:	TSRs which need to use sockets should set AL to FFh, non-resident
	  programs should normally use AL=00h
	IPX can be configured to support up to 150 open sockets on a
	  workstation, and defaults to 20
	this function is supported by Advanced NetWare 1.02+
SeeAlso: INT 7A/BX=0001h,INT 7A/BX=0004h,INT 7A/BX=0023h

(Table 2394)
Values for IPX socket number:
 0451h	File Service (NetWare Core Protocol)
 0452h	Service Advertising Protocol (see #2402)
 0453h	Routing Information Packet (see #2405)
 0455h	NetBIOS Packet
 0456h	diagnostics
 0457h	server serial numbers (labeled "Copy Protection" by Lanalyzer)
 4000h-7FFFh used for dynamic allocation
 4444h	Brightwork Development's SiteLock server
 5555h	Brightwork Development's SiteLock client (workstation)
 8000h-FFFFh assigned by Novell
 869Ch	ID Software's DOOM
Note:	SiteLock is an application metering product using IPX to communicate
	  between the application and the license server
--------N-7A----BX0001-----------------------
INT 7A - Novell NetWare - IPX Driver - CLOSE SOCKET
	BX = 0001h
	DX = socket number (high byte in DL) (see #2394)
Notes:	also cancels events set by any Event Control Blocks for the socket
	the program must close all open sockets before terminating
	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0000h
--------N-7A----BX0002-----------------------
INT 7A - Novell NetWare - IPX Driver - GET LOCAL TARGET
	BX = 0002h
	ES:SI -> target internetwork address (see #2409 at INT 7A/BX=000Bh)
	ES:DI -> 6-byte buffer for local target
Return: AL = return code
	    00h success
	       CX = expected one-way transfer time (clock ticks) for a 576-byte
		      packet
	       ES:DI -> local target
	    FAh unsuccessful (no path to destination)
Notes:	the internetwork address consists of a 4-byte network address followed
	  by a 6-byte node address.  The local target is only a 6-byte node
	  address.  If the target is in the same network, the local target is
	  just the node address of target; otherwise, the local target is the
	  node address of the bridge that leads to the target.
	this function may be called from inside IPX and AES Event Service
	  Routines, but not from other interrupt handlers
	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0009h
--------N-7A----BX0003-----------------------
INT 7A - Novell NetWare - IPX Driver - SEND PACKET
	BX = 0003h
	ES:SI -> Event Control Block (see #2395,#2396)
Notes:	returns immediately; IPX attempts to send the packet in the background
	this function is supported by Advanced NetWare 1.02+
	this function is nearly identical to BX=000Fh, except that it always
	  copies the source address into the IPX header assumed to be at the
	  beginning of the first fragment
SeeAlso: BX=0004h,BX=000Fh,INT 21/AH=EEh"Novell"

Format of IPX Event Control Block:
Offset	Size	Description	(Table 2395)
 00h	DWORD	Link
 04h	DWORD	-> Event Service Routine (00000000h if none) (see #2399)
 08h	BYTE	in use flag (see #2397)
 09h	BYTE	completion code (see #2398)
 0Ah	WORD	(big-endian) socket number (see #2394)
 0Ch  4 BYTEs	IPX workspace
 10h 12 BYTEs	driver workspace
 1Ch  6 BYTEs	immediate local node address
 22h	WORD	fragment count
 24h	var	fragment descriptors
		Offset	Size	Description
		 00h	DWORD	-> fragment data
		 04h	WORD	size of fragment in bytes.
Notes:	ESR is a far procedure that is called when the ECB has been handled.
	  On call, the in use flag is zero if the ECB has been handled,
	  non-zero otherwise. If the flag is zero, the completion code holds
	  the result of the event.
	the first fragment should start with an IPX header (see #2400)
	all fragments are concatenated and sent in one piece
	node address FFh FFh FFh FFh FFh FFh broadcasts to all nodes

Format of AES-ECB:
Offset	Size	Description	(Table 2396)
 00h	DWORD	Link
 04h	DWORD	ESR (Event Service Routine) address (see #2399)
 08h	BYTE	in use flag (see #2397)
 09h  5 BYTEs	AES workspace

(Table 2397)
Values for ECB in use flag:
 00h	available
 E0h	AES temporary
 F6h	\ special IPX/SPX processing for v3.02+
 F7h	/
 F8h	IPX in critical section
 F9h	SPX listening
 FAh	processing
 FBh	holding
 FCh	AES waiting
 FDh	AES couting down delay time
 FEh	awaiting packet reception
 FFh	sending packet

(Table 2398)
Values for ECB completion code:
 00h	success
 ECh	remote terminated connection without acknowledging packet
 EDh	abnormal connection termination
 EEh	invalid connection ID
 EFh	SPX connection table full
 F9h	event should not be cancelled
 FAh	cannot establish connection with specified destination
 FCh	cancelled
 FDh	malformed packet
 FEh	packet undeliverable
 FFh	physical error

(Table 2399)
Values Event Service Routine is called with:
	AL = caller's identity (00h = AES, FFh = IPX)
	ES:SI -> event control block
	interrupts disabled
Return: all registers preserved
SeeAlso: #2395,#2400

Format of IPX header:
Offset	Size	Description	(Table 2400)
 00h	WORD	(big-endian) checksum
 02h	WORD	(big-endian) length in bytes of total packet
 04h	BYTE	transport control
 05h	BYTE	packet type (see #2401)
 06h 10 BYTEs	destination internetwork address
 10h	WORD	(big-endian) destination socket
 12h 10 BYTEs	source internetwork address
 1Ch	WORD	(big-endian) source socket
SeeAlso: #2395,#2411

(Table 2401)
Values for IPX packet type:
 00h	unknown packet type
 01h	routing information packet
 02h	echo packet
 03h	error packet
 04h	packet exchange packet (always use this one)
 05h	SPX packet (see #2411)
 11h	NetWare Core Protocol
 14h	Propagated Packet (for NetWare), NetBIOS name packet
 15h-1Eh experimental protocols
Note:	undocumented packet type 14h will cross up to 16 networks deep in
	  all directions; as Aaron Martin of Origin Systems discovered, the
	  first 64 bytes of the IPX data in such packets should be considered
	  reserved, as IPX places the traversed server nodes there.

Format of Service Advertising Protocol Service Query Packet:
Offset	Size	Description	(Table 2402)
 00h 30 BYTEs	IPX header
 1Eh	WORD	(big-endian) query type
		0001h general find service
		0003h find nearest server
 20h	WORD	(big-endian) server type (see INT 21/AH=E3h"NetWare")
SeeAlso: #2403

Format of Service Advertising Protocol Server Identification Packet:
Offset	Size	Description	(Table 2403)
 00h 30 BYTEs	IPX header
 1Eh	WORD	(big-endian) response type
		0002h general service
		0004h nearest service
 20h 64N BYTEs	server entries (1-7) (see #2404)
SeeAlso: #2402,#2405

Format of SAP server entry:
Offset	Size	Description	(Table 2404)
 00h	WORD	(big-endian) server type (see INT 21/AH=E3h"NetWare")
 02h 48 BYTEs	ASCIZ server name
 32h  2 WORDs	(big-endian) network number
 34h  3 WORDs	(big-endian) node number
 3Ch	WORD	(big-endian) socket number
 3Eh	WORD	(big-endian) number of hops between caller and server

Format of IPX Routing Information packet:
Offset	Size	Description	(Table 2405)
 00h 30 BYTEs	IPX header
 1Eh	WORD	operation (0001h request, 0002h response)
 20h 8N BYTEs	network entries (1-50) (see #2406)
SeeAlso: #2403

Format of RIP network entry:
Offset	Size	Description	(Table 2406)
 00h	DWORD	network number (FFFFFFFFh = general request)
 04h	WORD	(response) number of hops
 06h	WORD	(response) number of clock ticks to reach destination
--------N-7A----BX0004-----------------------
INT 7A - Novell NetWare - IPX Driver - LISTEN FOR PACKET
	BX = 0004h
	ES:SI -> Event Control Block (see BX=0003h)
Return: AL = status
	    00h successful
	    FFh no listening socket for packet
Desc:	this function provides IPX with an ECB for receiving an IPX packet, but
	  does not wait for a packet to arrive
Notes:	the application must open a socket and initialize the ECB's ESR
	  address, socket number, fragment count, and fragment descriptor
	  fields before invoking this function
	there is no limit on the number of ECBs which may simultaneously be
	  listening on a socket
	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0000h,BX=0003h
--------N-7A----BX0005-----------------------
INT 7A - Novell NetWare - IPX Driver - SCHEDULE IPX EVENT
	BX = 0005h
	AX = delay time in clock ticks
	ES:SI -> Event Control Block (see BX=0003h)
Note:	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0006h,BX=0007h,BX=0008h
--------N-7A----BX0006-----------------------
INT 7A - Novell NetWare - IPX Driver - CANCEL EVENT
	BX = 0006h
	ES:SI -> Event Control Block (see BX=0003h)
Return: AL = return code (see #2407)
Notes:	cannot cancel packets which the node's driver has already sent
	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0005h

(Table 2407)
Values for IPX return code:
 00h	success
 F9h	event in use
 FCh	event cancelled
 FFh	unsuccessful, event not in use, or unrecognized ECB flag
--------N-7A----BX0007-----------------------
INT 7A - Novell NetWare - IPX Driver - SCHEDULE SPECIAL EVENT
	BX = 0007h
	AX = delay time
	ES:SI -> Event Control Block (see BX=0003h)
Note:	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0006h
--------N-7A----BX0008-----------------------
INT 7A - Novell NetWare - IPX Driver - GET INTERVAL MARKER
	BX = 0008h
Return: AX = interval marker in clock ticks
Notes:	may be used to measure the time elapsed between two events, up to one
	  hour
	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0005h
--------N-7A----BX0009-----------------------
INT 7A - Novell NetWare - IPX Driver - GET INTERNETWORK ADDRESS
	BX = 0009h
	ES:SI -> buffer for own internetwork address (see #2408)
Return: ES:SI buffer filled
	SI destroyed
Note:	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0002h,BX=000Bh

Format of IPX internetwork address:
Offset	Size	Description	(Table 2408)
 00h  4 BYTEs	(big-endian) network number
 04h  6 BYTEs	(big-endian) node number within network
--------N-7A----BX000A-----------------------
INT 7A - Novell NetWare - IPX Driver - RELINQUISH CONTROL
	BX = 000Ah
Desc:	this call indicates that the application is idle and permits the IPX
	  driver to do some work
Note:	this function is supported by Advanced NetWare 1.02+
SeeAlso: INT 15/AX=1000h,INT 21/AH=89h,INT 2F/AX=1680h
--------N-7A----BX000B-----------------------
INT 7A - Novell NetWare - IPX Driver - DISCONNECT FROM TARGET
	BX = 000Bh
	ES:SI -> internetwork address (see #2409)
Notes:	this function permits the network software on the remote machine to
	  remove any virtual connection with the calling machine
	only use in point-to-point networks
	should never be called from within an Event Service Routine
	this function is supported by Advanced NetWare 1.02+
SeeAlso: BX=0002h,BX=0009h

Format of IPX internetwork address:
Offset	Size	Description	(Table 2409)
 00h  4 BYTEs	(big-endian) destination network
 04h  6 BYTEs	(big-endian) destination node
 0Ah  2 BYTEs	(big-endian) destination socket
--------N-7A----BX000C-----------------------
INT 7A U - Novell NetWare - IPX Driver - internal - INITIALIZE NETWORK ADDRESS
	BX = 000Ch
	CX:DX = global network address (see INT 7A/BX=0002h)
	ES:DI -> "OSINCRITICALSECTION" flag
	DS:SI -> current mode for socket
Note:	the address cannot be changed once it has been initialized
SeeAlso: INT 7A/BX=0024h
--------N-7A----BX000D-----------------------
INT 7A U - Novell NetWare - IPX Driver - internal - IPX GET PACKET SIZE
	BX = 000Dh
Return: AX = maximum packet size
	CX = retry count
SeeAlso: BX=001Ah
--------N-7A----BX000E-----------------------
INT 7A U - Novell NetWare - IPX Driver - internal - TERMINATE SOCKETS
	BX = 000Eh
Return: nothing
Notes:	this function terminates all sockets opened with the current mode; this
	  may be intended for future enhancements as the socket mode never
	  changes in v2.15
	called by the NetWare shell if a program terminates
--------N-7A----BX000F-----------------------
INT 7A - Novell NetWare - IPX Driver - INTERNAL - SEND PACKET
	BX = 000Fh
	ES:SI -> Event Control Block (see BX=0003h)
Note:	nearly identical to function 0003h, but does not copy address into
	  the first fragment, and bypasses normal error checking
SeeAlso: BX=0003h
--------N-7A----BX0010-----------------------
INT 7A - Novell NetWare - SPX Driver - INSTALLATION CHECK
	BX = 0010h
	AL = 00h
Return: AL = FFh if SPX loaded
	    BH = SPX major version
	    BL = SPX minor version
	    CX = maximum SPX connections
	    DX = SPX connections available
Notes:	this function is supported by Advanced NetWare 2.1+
	this interrupt is used for IPX/SPX access in NetWare versions through
	  2.0a; in later versions, you should use INT 2F/AX=7A00h to get an
	  entry point even though INT 7A still exists.	For both INT 7A and
	  the FAR entry point, BX contains the function number
	IPX is sometimes called internally with BX bit 15 set, which causes the
	  entry point handler to bypass some checks and an optional call to
	  the IPX Windows support handler set with INT 2F/AX=7AFFh/BX=0000h
	  (see #1619)
SeeAlso: BX=0015h
--------N-7A----BX0011-----------------------
INT 7A - Novell NetWare - SPX Driver - ESTABLISH SPX CONNECTION
	BX = 0011h
	AL = retry count
	AH = watchdog flag
	ES:SI -> Event Control Block (see BX=0003h)
Return: AL = status (see #2410)
	DX = assigned connection ID number
Desc:	attempt to establish a connection with a listening socket
Notes:	there should always be at least two SPX ECB's listening to a socket, so
	  that NetWare can perform its internal packet exchanges
	the first fragment should start with a SPX header (see #2411).	Fill
	  in all destination addresses.
	this function is supported by Advanced NetWare 2.1+
SeeAlso: BX=0000h,BX=0012h,BX=0013h,BX=0014h,BX=0015h

(Table 2410)
Values for SPX function status:
 00h	attempting to contact destination socket
 EFh	local connection table full
 FDh	buffer size not 42 or fragment count not 1
 FFh	sending socket not open

Format of SPX header:
Offset	Size	Description	(Table 2411)
 00h	WORD	(big-endian) checksum
 02h	WORD	(big-endian) length in bytes of total packet
 04h	BYTE	transport control
 05h	BYTE	packet type (see #2401 at INT 7A/BX=0003h)
 06h 10 BYTEs	destination internet address
 10h	WORD	(big-endian) destination socket
 12h 10 BYTEs	source internet address
 1Ch	WORD	(big-endian) source socket
 1Eh	BYTE	connection control (see #2412)
 1Fh	BYTE	datastream type
		FEh terminate connection request packet
		FFh terminate connection acknowledgement packet
		other user-defined, ignored by SPX
 20h	WORD	(big-endian) source connection ID
 22h	WORD	(big-endian) destination connection ID
 24h	WORD	(big-endian) sequence number
 26h	WORD	(big-endian) acknowledge number
 28h	WORD	(big-endian) allocation number
SeeAlso: #2400

Bitfields for SPX connection control:
Bit(s)	Description	(Table 2412)
 3-0	unused???
 4	end of message
 5	reserved
 6	acknowledgement required
 7	system packet
--------N-7A----BX0012-----------------------
INT 7A - Novell NetWare - SPX Driver - LISTEN FOR SPX CONNECTION
	BX = 0012h
	AH = watchdog flag (00h disabled, 01h enabled)
	AL = retry count (00h = default)
	ES:SI -> Event Control Block (see BX=0003h)
Notes:	there should always be at least two SPX ECB's listening to a socket, so
	  that NetWare can perform its internal packet exchanges
	this function is supported by Advanced NetWare 2.1+
SeeAlso: BX=0011h,BX=0013h,BX=0014h
--------N-7A----BX0013-----------------------
INT 7A - Novell NetWare - SPX Driver - TERMINATE SPX CONNECTION
	BX = 0013h
	DX = connection ID to terminate
	ES:SI -> Event Control Block (see BX=0003h)
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: BX=0011h,BX=0012h,BX=0014h
--------N-7A----BX0014-----------------------
INT 7A - Novell NetWare - SPX Driver - ABORT SPX CONNECTION
	BX = 0014h
	DX = connection ID to terminate
Notes:	this function is supported by Advanced NetWare 2.1+
	this function does not tell the other side that the connection has been
	  terminated
	also aborts any outstanding Establish Connection, Terminate Connection,
	  and Send Sequenced Packet commands
SeeAlso: BX=0011h,BX=0013h
--------N-7A----BX0015-----------------------
INT 7A - Novell NetWare - SPX Driver - GET SPX CONNECTION STATUS
	BX = 0015h
	DX = connection ID
	ES:SI -> status buffer (see #2413)
Return: AL = return code
	    00h connection still valid
		ES:SI -> status buffer filled
	    EEh no such connection
Note:	this function is supported by Advanced NetWare 2.1+
SeeAlso: BX=0010h,BX=0011h

Format of SPX status buffer:
Offset	Size	Description	(Table 2413)
 00h	BYTE	connection state
		01h waiting to establish connection
		02h starting (attempting to create connection)
		03h connection established
		04h terminating
 01h	BYTE	watchdog flag
		bit 0: used internally by SPX
		bit 1: SPX watchdog is monitoring connection
		bits 2-7 used internally by SPX
 02h	WORD	(big-endian) source connection ID
 04h	WORD	(big-endian) destination connection ID
 06h	WORD	(big-endian) sequence number of next packet sent
 08h	WORD	(big-endian) acknowledge number, expected sequence number of
		  next received packet
 0Ah	WORD	(big-endian) maximum sequence number remote SPX may send
		  without ACK from local SPX
 0Ch	WORD	(big-endian) remote acknowledge number, next sequence number
		  remote SPX expects to receive
 0Eh	WORD	(big-endian) remote allocation number, maximum sequence number
		  local SPX may send
 10h	WORD	(big-endian) connection socket
 12h  6 BYTEs	immediate node address--bridge on local network to destination
 18h 10 BYTEs	destination internetwork address (see #2409 at INT 7A/BX=000Bh)
 22h	WORD	(big-endian) retransmit count
 24h	WORD	(big-endian) estimated roundtrip delay
 26h	WORD	(big-endian) retransmitted packets
 28h	WORD	(big-endian) suppressed packets
 2Ah 12 BYTEs	??? (v2.15)
--------N-7A----BX0016-----------------------
INT 7A - Novell NetWare - SPX Driver - SEND SPX PACKET
	BX = 0016h
	DX = connection ID
	ES:SI -> Event Control Block (see BX=0003h)
Notes:	this function is supported by Advanced NetWare 2.1+
	CX may need to be 0001h ???
SeeAlso: BX=0011h,BX=0017h
--------N-7A----BX0017-----------------------
INT 7A - Novell NetWare - SPX Driver - LISTEN FOR SPX PACKET
	BX = 0017h
	DX = connection ID (unused in v2.15)
	ES:SI -> Event Control Block (see BX=0003h)
Notes:	this function is supported by Advanced NetWare 2.1+
	CX may need to be 0001h ???
SeeAlso: BX=0011h,BX=0016h
--------N-7A----BX0018-----------------------
INT 7A U - Novell NetWare - IPX Driver - internal - ADD DIAGNOSTIC ELEMENT
	BX = 0018h
	ES:SI -> diagnostic element (see #2414) to be added to Diagnostic Queue
Note:	this function is supported on file servers only under v2.15; v3.02 also
	  supports it on workstations
SeeAlso: BX=0019h

Format of IPX diagnostic element:
Offset	Size	Description	(Table 2414)
 00h	DWORD	pointer to next diagnostic element
 04h	DWORD	pointer to function for ???
 08h	DWORD	pointer to function for ???
--------N-7A----BX0019-----------------------
INT 7A U - Novell NetWare - IPX Driver - internal - CANCEL DIAGNOSTIC ELEMENT
	BX = 0019h
	ES:SI -> diagnostic element (see BX=0018h) to be removed
Note:	this function is supported on file servers only under v2.15; v3.02 also
	  supports it on workstations
SeeAlso: BX=0018h
--------N-7A----BX001A-----------------------
INT 7A - Novell NetWare - IPX Driver - internal - GET DRIVER PACKT SIZE LIMIT
	BX = 001Ah
Return: AX = packet size with preamble
	CX = IPX retry count
Note:	this function is has existed since November 1989; it is documented in
	  Novell document FYI.A.3709, 03May91
SeeAlso: BX=000Dh
--------N-7A----BX001B-----------------------
INT 7A U - Novell NetWare - IPX Driver - INTERNAL
	BX = 001Bh
	???
Return: ???
Notes:	this function is supported on file servers only under v2.15; v3.02 also
	  supports it on workstations
	used by NetWare Access Server, which may call INT 15/AX=1117h with
	  BX=0000h in some cases (it uses a modified DESQview)
--------N-7A----BX001C-----------------------
INT 7A U - Novell NetWare - NetWare Access Server - GET ???
	BX = 001Ch
Return: AX = length of ???
	ES:BX -> ???
Notes:	these functions are NOPs for standard IPX drivers such as IPXODI v2.12
SeeAlso: INT 2F/AX=7AF1h,INT 7A/BX=001Dh,INT 7A/BX=001Eh
--------N-7A----BX001D-----------------------
INT 7A U - Novell NetWare - NetWare Access Server - GET ??? ECB AND SOCKET
	BX = 001Dh
Return: DX = socket number chosen by IPX
	ES:SI -> ECB in IPX's code segment (will be listening)
	BX corrupted
Notes:	these functions are NOPs for standard IPX drivers such as IPXODI v2.12
SeeAlso: INT 2F/AX=7AF1h,INT 7A/BX=001Ch,INT 7A/BX=001Eh
--------N-7A----BX001E-----------------------
INT 7A U - Novell NetWare - NetWare Access Server - GET ??? ECB
	BX = 001Eh
Return: ES:SI -> ECB
	BX corrupted
Notes:	these functions are NOPs for standard IPX drivers such as IPXODI v2.12
SeeAlso: INT 2F/AX=7AF1h,INT 7A/BX=001Ch,INT 7A/BX=001Dh
--------N-7A----BX001F-----------------------
INT 7A - Novell NetWare - IPXODI v2.12+ - GET IPX FLAGS
	BX = 001Fh
	DX = 0000h
Return: AX = ???
	BX:CX -> ??? entry point (see #2415)
	DX = flags
	    bit 0: IPXODI rather than dedicated IPX
	    bit 1: checksumming functions 0020h-0022h supported
	ES:SI -> array of words containing used socket number (undocumented);
		0000h ends array
Note:	IPXODI v2.12 is distributed as part of the Personal NetWare system
	  bundled with Novell DOS 7
SeeAlso: BX=0020h,INT 2F/AX=7A2Fh

(Table 2415)
Call IPXODI entry point with:
	ES:SI -> ECB??? (offset 24h is far pointer to ??? data)
--------N-7A----BX0020-----------------------
INT 7A - Novell NetWare - IPXODI v2.12+ - SEND WITH CHECKSUM
	BX = 0020h
	ES:SI -> ECB (see #2395 at INT 7A/BX=0003h)
Return: DS preserved
	BX,BP corrupted
SeeAlso: BX=001Fh,BX=0021h,BX=0022h,INT 2F/AX=7A2Fh
--------N-7A----BX0021-----------------------
INT 7A - Novell NetWare - IPXODI v2.12+ - IPX GENERATE CHECKSUM
	BX = 0021h
	ES:SI -> ECB data (see #2395 at INT 7A/BX=0003h)
Return: ES,DS,SI preserved
	BX,BP corrupted
Notes:	the checksum and TransportControl fields of the IPX packet are updated
	this function enables interrupts and is fully reentrant
SeeAlso: BX=001Fh,BX=0020h,BX=0022h,INT 2F/AX=7A2Fh
--------N-7A----BX0022-----------------------
INT 7A - Novell NetWare - IPXODI v2.12+ - IPX VERIFY CHECKSUM
	BX = 0022h
	ES:SI -> ECB data (see #2395 at INT 7A/BX=0003h)
Return: AX = status (0000h checksum matches)
	DS,ES,SI preserved
	BX,BP corrupted
Note:	this function enables interrupts and is fully reentrant
SeeAlso: BX=001Fh,BX=0020h,BX=0021h,INT 2F/AX=7A2Fh
--------N-7A----BX0023-----------------------
INT 7A - Novell NetWare - IPXODI v2.12+ - OPEN LOOK-AHEAD SOCKET
	BX = 0023h
	AL = ???
	DX = socket number
	ES:SI -> Look Ahead handler (see #2416)
Return: AL = 00h if successful
	BX corrupted
Notes:	the socket will always be long-lived, and must thus be explicitly
	  closed with INT 7A/BX=0001h before the Look Ahead handler code is
	  removed from memory (i.e. the program terminates)
	this function is only supported if INT 2F/AX=7A00h returns ES:BX
	  pointing at an IPX version greater than 3.30
SeeAlso: INT 7A/BX=0000h,INT 7A/BX=0001h

(Table 2416)
Call IPX Look-Ahead handler with:
	AX = socket
	DS:SI -> look-ahead structure (see #1694 at INT 2F/AX=C000h"LSL")
	DF clear
	interrupt disabled (must remain disabled)
Return: AX = packet use
	    0000h application want packet
		ES:SI -> ODI ECB (see #1695 at INT 2F/AX=C000h"LSL")
	    8001h application does not want packet
	ZF set if AX=0000h
	DS,DI,BP,SS,SP preserved
--------N-7A----BX0024-----------------------
INT 7A U - Novell NetWare - IPXODI v2.20+ - SET INTERNETWORK ADDRESS
	BX = 0024h
	ES:SI -> buffer containing internetwork address (see #2409)
Return: BX,CX,SI,DI,ES destroyed
Note:	this function differs from INT 7A/BX=000Ch in that it unconditionally
	  sets the address
SeeAlso: INT 7A/BX=000Ch
--------A-7A0001-----------------------------
INT 7A R - AutoCAD Device Interface - DISPLAY - INITIALIZE (INIT1)
	AX = 0001h
	BX = configuration
	CX = interface level (0001h)
Return: AX = status
	    0000h initialization failed
	    0001h pre-v4.0 driver initialized successfully
	    0003h post-v3.1 driver initialized successfully (driver truncates
		  excessivly long packets)
	BX = width of graphics area in pixels, or 0000h if using packet
		  communication
	DX:CX -> packet-mode entry point (see #2417)
SeeAlso: AX=0001h,AX=0200h,AX=07D0h,INT 61/AX=0007h"OPTIMA",INT 78"AutoCAD"
SeeAlso: INT 79/AX=0001h,INT 7B/AX=8001h"AutoCAD",INT 7C"AutoShade"

(Table 2417)
Call packet-mode entry point with:
STACK:	DWORD	pointer to request packet (see #2418)
	WORD	length of packet

Format of request packet:
Offset	Size	Description	(Table 2418)
 00h	WORD	function number (00h-45h for Compaq VGADI41.EXE)
--------A-7A0200BX0000-----------------------
INT 7A R - AutoCAD Device Interface - RENDERING DEVICE - INITIALIZE (RDLINKUP)
	AX = 0200h
	BX = 0000h
	CX = interface level (0001h)
Return: BX = 0000h (driver uses packet communication)
	DX:CX -> packet-mode entry point (see #2417)
SeeAlso: AX=0001h"AutoCAD",INT 79/AX=0001h,INT 7B/AX=8001h"AutoCAD"
--------I-7A04-------------------------------
INT 7A - IBM 3270 Workstation Program API - CREATE A QUEUE
	AH = 04h
	???
Return: ???
SeeAlso: AH=06h
--------I-7A06-------------------------------
INT 7A - IBM 3270 Workstation Program API - DELETE A QUEUE
	AH = 06h
	???
Return: ???
SeeAlso: AH=04h
----------7A07D0-----------------------------
INT 7A R - AutoCAD Device Interface - Compaq VGADI41.EXE - GET ENTRY POINT
	AX = 07D0h
Return: AX = ??? (0003h)
	BX = 0000h
	DX:CX -> ADI entry point (see AX=0001h)
SeeAlso: AX=0001h
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - SESSION SERVICES
	AH = 09h
	BX = 8020h (synchronous request)
	CX = 0000h
	DX = ID of session manager (SESSMGR)
	AL = service (see #2419)
	ES:DI -> control block
Return: ???

(Table 2419)
Values for service:
 01h	get session ID
 02h	get session info
 04h	dettach from session
 05h	attach to session
 06h	get list of windows available
 07h	get environment of window
 08h	get 'PIF' (program information file) info
 0Ah	get base window ID
 0Bh	get cursor info
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - KEYBOARD SERVICES
	AH = 09h
	BX = 8020h (synchronous request)
	CX = 0000h
	DX = ID of keyboard manager
	AL = service number (see #2420)
	ES:DI -> control block
Return: ???

(Table 2420)
Values for 3270 Workstation Program keyboard service:
 01h	connect to keyboard
 02h	disconnect from keyboard
 03h	read from keyboard
 04h	send keystroke to session
 05h	disable input
 06h	enable input
 07h	update status code
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - WINDOW SERVICES
	AH = 09h
	BX = 8020h (synchronous request)
	CX = 00FFh
	DX = ID of window service controller (WSCTRL)
	AL = service number (see #2421)
	ES:DI -> control block
Return: ???

(Table 2421)
Values for 3270 Workstation Program window service:
 01h	connect to WS control
 02h	disconnect from WS control
 03h	add a window
 04h	change window's position on screen
 05h	change window's size
 06h	change window's color
 07h	change window's position in the presentation space
 08h	hide/unhide toggle
 09h	enlarge/reduce toggle
 0Ah	change screen background color
 0Bh	get window's position on screen
 0Ch	get window's size
 0Dh	get window's color
 0Eh	get window's position in the presentation space
 0Fh	determine whether hidden
 10h	determine whether enlarged
 11h	get background color
 12h	get window names
 13h	delete all windows from profile
 14h	pick active window
 15h	redraw screen
 16h	redraw window
 17h	delete a window from profile
 18h	get active window
 19h	get active screen
 1Ah	get window data
 1Bh	change window data
 1Ch	select active screen
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - PRESENTATION SPACE SERVICES
	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of PCPSM
	AL = service
	    01h define presentation space
	    02h delete presentation space
	    03h display presentation space
	    04h position cursor in presentation space
	    05h change default presentation space
	ES:DI -> control block
Return: ???
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - 3270 EMULATION
	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of 3270EML
	AL = service
	    01h connect
		 02h disconnect
	ES:DI -> control block
Return: ???
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - OPERATOR INFORMATION AREA
	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of OIAM
	AL = service
	    01h read Operator Information Area
	    02h read OIA subset
	ES:DI -> control block
Return: ???
Note: the OIA is the 25th line on the Host session
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - TRANSLATE DATA
	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of XLATE
	AL = service
	    01h translate from host characters to ASCII and vice versa
		(determined by control block byte 11)
	ES:DI -> control block
Return: ???
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - COPY SERVICE
	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of copy service
	AL = service
	    01h copy string from one presentation space to another
	    02h copy block from one presentation space to another
	    03h connect to PC session for copy
	    04h disconnect PC session from copy
	ES:DI -> control block
Return: ???
--------I-7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - Multi-DOS
	AH = 09h
	BX = 8020h
	CX = 00FFh
	ES:DI -> control block
	DX = ID of INDJQRY
		get environment size
	   = ID of INDJASY
		request DOS functions from workstation
	   = ID of MEMORY
		AL = function
		    01h allocate memory
		    02h deallocate memory
		    03h modify allocated size
Return: ???
--------I-7A09-------------------------------
INT 7A - IBM 3270 Workstation Program API - HOST SERVICES
	AH = 09h
	BX = request type (4000h async, 8028h synchronous)
	CX = 0000h
	DX = ID of MFIC
	AL = service (see #2422)
	ES:DI -> control block

(Table 2422)
Values for 3270 Workstation Program host service:
 01h	connect to host
 02h	disconnect from host
 03h	read DFT structured data from host
 04h	write DFT structured data to host
 05h	create a host buffer
--------I-7A13-------------------------------
INT 7A - IBM 3270 Workstation Program API - GET DATA FROM A QUEUE
	AH = 13h
	???
Return: ???
----------7A7A-------------------------------
INT 7A - Canon IX-30F Image Scanner SI3.SYS - INTERFACE
	AH = 7Ah
	???
Return: AX = status
	    0000h success
	    000Eh undefined function code
Range:	unknown, selected by device driver commandline arguments
--------I-7A81-------------------------------
INT 7A - IBM 3270 Workstation Program API - RESOLVE A GATE NAME
	AH = 81h
	ES:DI -> 8-char blank-padded gate name (see #2423)
Return: DX = gate ID

(Table 2423)
Values for 3270 Workstation Program gate name:
 "SESSMGR "
 "KEYBOARD"
 "WSCTRL  "
 "MFIC	  "
 "PCPSM	  "
 "3270EML "
 "COPY	  "
 "XLATE	  "
 "OIAM	  "
 "MEMORY  "
 "INDJQRY "
 "INDJASY "
--------I-7A83-------------------------------
INT 7A - IBM 3270 Workstation Program API - GET COMPLETION RESULTS
	AH = 83h
	???
Return: ???
--------I-7AFDCB-----------------------------
INT 7A - IBM Personal Communications/3270 - INSTALLATION CHECK
	AX = FDCBh
Return: DX:AX -> PCS/3270 signature block if loaded (see #2424)

Format of Personal Communications/3270 signature block:
Offset	Size	Description	(Table 2424)
 04h	WORD	PCS/3270 signature (5741h)
 06h	WORD	version (0501h = PCS/3270 v1.0)
--------I-7AFE01-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL SEND/RECEIVE FUNCTION
	AX = FE01h
	???
Return: ???
SeeAlso: AX=FE02h
--------I-7AFE02-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL SEND/RECEIVE FUNCTION
	AX = FE02h
	???
Return: ???
SeeAlso: AX=FE01h
--------I-7AFF01-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL API INITIALIZATION
	AX = FF01h
	ES:DI -> API function handler routine
Return: CX = 1200h
SeeAlso: AX=FF02h,AX=FF03h
--------I-7AFF02-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL API TERMINATION
	AX = FF02h
Return: CX = 1200h
SeeAlso: AX=FF01h
--------I-7AFF03-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL API INITIALIZATION
	AX = FF03h
	ES:DI -> send/receive function handler routine
Return: CX = 1200h
SeeAlso: AX=FF01h
--------I-7AFF04-----------------------------
INT 7A U - IBM PC3270 EMUL PROG v3 - INTERNAL ???
	AX = FF04h
	ES:DI -> ???
Return: CX = 1200h
--------f-7B---------------------------------
INT 7B - Btrieve API (single user)
	DS:DX -> 38-byte parameter record (see #2425)
Return: return code field set
Note:	Btrieve sets low byte of vector to 33h; this serves as the installation
	  check
SeeAlso: INT 2F/AX=AB01h,INT 7F/AX=0200h

Format of Btrieve parameter record:
Offset	Size	Description	(Table 2425)
 00h	DWORD	pointer to data buffer
 04h	WORD	data buffer length
 06h	DWORD	pointer to 90-byte record containing positioning info
		(should be same for all calls for same file)
 0Ah	DWORD	pointer to 38-byte FCB info buffer
		(should be same for all calls for same file)
 0Eh	WORD	function code (see #2426)
 10h	DWORD	pointer to file name/key buffer
 14h	BYTE	key length
 15h	BYTE	key number
 16h	DWORD	pointer to status code (see #2427)
 1Ah	WORD	interface code (version specific)
		6176h version 5.10

(Table 2426)
Values for function code:
 00h	open
 01h	close
 02h	insert
 03h	update
 04h	delete
 05h	get_equal
 06h	get_next
 07h	get_prev
 08h	get_greater
 09h	get_gr_eql
 0Ah	get_less
 0Bh	get_less_eq
 0Ch	get_first
 0Dh	get_last
 0Eh	create
 0Fh	stat
 10h	extend
 11h	set_dir: set directory information
 12h	get_dir: get directory information
 13h	begin_trans
 14h	end_trans
 15h	abort_trans
 16h	get_pos: get record position number
 17h	get_direct: get data by sending record position
 18h	step_next
 19h	stop
 1Ah	version
 1Bh	unlock
 1Ch	reset
 1Dh	set owner
 1Eh	clear owner
 1Fh	create supplemental index
 20h	drop supplemental index
 21h	step first
 22h	step last
 23h	step previous
 24h	get next extended: get multiple records using a filter
 25h	get previous extended: get multiple records using a filter
 26h	step next extended: get multiple records using a filter
 27h	step previous extended: get multiple records using a filter
 28h	insert extended: insert one or more records
 31h	???
Notes:	add 50 (32h) to any "get" operation to just return the key data
	add 100 (64h) for a single-record wait lock (automatically released
	  on next get)
	add 200 (C8h) for a single-record nowait lock (nowait lock returns
	  error 54h or 55h if record already locked)
	add 300 (12Ch) for a multiple-record wait lock (not released until
	  unlock called)
	add 400 (190h) for a multiple-record nowait lock (nowait lock returns
	  error 54h or 55h if record already locked)

(Table 2427)
Values for Btrieve status code:
 00h	successful
 01h	invalid operation
 02h	I/O error
 03h	file not open
 04h	key value not found
 05h	duplicate key value
 06h	invalid key number
 07h	different key number
 08h	invalid positioning
 09h	end of file
 0Ah	modifiable key value error
 0Bh	invalid file name
 0Ch	file not found
 0Dh	extended file error
 0Eh	pre-image open error
 0Fh	pre-image I/O error
 10h	expansion error
 11h	close error
 12h	disk full
 13h	unrecoverable error
 14h	record manager inactive
 15h	key buffer too short
 16h	data buffer length overrun
 17h	position block length
 18h	page size error
 19h	create I/O error
 1Ah	number of keys
 1Bh	invalid key position
 1Ch	invalid record length
 1Dh	invalid key length
 1Eh	not a Btrieve file
 1Fh	file already extended
 20h	extended I/O error
 22h	invalid extension name
 23h	directory error
 24h	transaction error
 25h	transaction is active
 26h	transaction control file I/O error
 27h	end/abort transaction error
 28h	transaction max files
 29h	operation not allowed
 2Ah	incomplete accelerated access
 2Bh	invalid record address
 2Ch	null key path
 2Dh	inconsistent key flags
 2Eh	access to file denied
 2Fh	maximum open files
 30h	invalid alternate sequence definition
 31h	key type error
 32h	owner already set
 33h	invalid owner
 34h	error writing cache
 35h	invalid interface
 36h	variable page error
 37h	autoincrement error
 38h	incomplete index
 39h	expanded memory error
 3Ah	compression buffer too short
 3Bh	file already exists
 3Ch	reject count reached
 3Dh	work space too small
 3Eh	incorrect descriptor
 3Fh	invalid extended insert
 40h	filter limit reached
 41h	incorrect field offset
 4Ah	automatic transaction abort
 4Dh	Btrieve engine busy or resource locked by another user
 4Eh	deadlock detected
 50h	conflict
 51h	lock error
 52h	lost position
 53h	read outside transaction
 54h	record in use
 55h	file in use
 56h	file table full
 57h	handle table full
 58h	incompatible open mode
 5Ah	redirected device table full
 5Bh	server error
 5Ch	transaction table full
 5Dh	incompatible lock type
 5Eh	permission error
 5Fh	session no longer valid
 60h	communications environment error
 61h	data message too small
 62h	internal transaction error
--------I-7B---------------------------------
INT 7B - Eicon Access API (3270/5250 gateways)
SeeAlso: INT 5C"NetBIOS"
--------E-7B---------------------------------
INT 7B - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ3
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 0B,INT 10/AH=FFh"GO32",INT 7A"GO32",INT 7C"GO32"
--------A-7B---------------------------------
INT 7B CR - AutoCAD Device Interface - PRINTER/PLOTTER - SEND PLOTTING DATA
	AX = data length (0000h-7FFFh)
	CX:BX -> data to be plotted
	DX = vertical position of line on page
Return: nothing
Notes:	This interrupt is called by AutoCAD to perform its output
	A data length of 0000h indicates that a blank line is to be output
SeeAlso: AX=8001h,AX=8002h,INT 78"AutoCAD",INT 7A/AX=0001h"AutoCAD"
----------7B---------------------------------
INT 7B - Novell XQL - XQL PRIMITIVES MANAGER API
	DS:DX -> parameter block (see #2429)
Return: parameter block updated

(Table 2428)
Values for Novell XQL function number:
 00h	log in
 01h	log out
 02h	"tNewFcn"
 03h	"tFreeFcn"
 04h	"tMoveFldFcn"
 05h	"tFieldFcn"
 06h	"tDescribeFcn"
 07h	"tFetchFcn"
 08h	"tComputeFcn"
 09h	"tOrderFcn"
 0Ah	"tRestrictFcn"
 0Bh	"tJoinFcn"
 0Ch	"tInsertFcn"
 0Dh	"tUpdateFcn"
 0Eh	"tUpdallFcn"
 0Fh	"tRemoveFcn"
 10h	"tRemallFcn"
 11h	"tResetFcn"
 12h	"tTransFcn"
 13h	"tStatFcn"
 14h	"tDDCreFcn"
 15h	"tStoreFcn"
 16h	"tRecallFcn"
 17h	"tStopFcn"
 18h	"tDDFileFcn"
 19h	"tDDFieldFcn"
 1Ah	"tDDIndexFcn"
 1Bh	"tDDModFcn"
 1Ch	"tDDViewFcn"
 1Dh	"tDDDrpFcn"
 1Eh	"tDDPathFcn"
 1Fh	"tDDAttrFcn"
 20h	"tDDFcn"
 21h	"tSecurFcn"
 22h	"tUserFcn"
 23h	"tAccessFcn"
 24h	"tPswdFcn"
 25h	"tCharFcn"
 26h	"tVersionFcn"
 27h	"tCnvFcn"
 28h	"tValFcn"
 29h	"tMaskFcn"
SeeAlso: #2429

Format of XQL parameter block:
Offset	Size	Description	(Table 2429)
 00h  4 BYTEs	signature "XQLP"
 04h	WORD	function number (see #2428)
 06h	WORD	handle
 08h	WORD	status
 0Ah	WORD	session ID
 0Ch	var	data record (varies by function)
---function 00h---
 0Ch	DWORD	-> user name
 10h	DWORD	-> password
 14h	DWORD	-> dictionary
 18h	DWORD	-> filepath
 1Ch	DWORD	-> machine name
 20h	WORD	process ID
---function 01h---
 no additional fields???
---function 02h---
 0Ch	DWORD	-> filename
 10h	DWORD	-> owner name
 14h	WORD	open mode
---function 03h---
 no additional fields???
---function 04h---
 0Ch	WORD	"frompos"
 0Eh	WORD	"topos"
---function 05h---
 0Ch	WORD	subfunction
 0Eh	WORD	position
 10h	WORD	count
 12h	DWORD	-> field list
---function 06h---
 0Ch	WORD	subfunction
 0Eh	WORD	length of description
 10h	WORD	position
 12h	WORD	count
 14h	DWORD	pointer to description list
---function 07h---
 0Ch	WORD	data length
 0Eh	WORD	"op"
 10h	DWORD	"select"
 14h	DWORD	"reject"
 18h	DWORD	pointer to data buffer
---function 08h---
 0Ch	DWORD	-> field name
 10h	WORD	field type
 12h	WORD	field size
 14h	WORD	"flddec"
 16h	WORD	"explen"
 18h	DWORD	pointer to "expbuf"
---function 09h---
 0Ch	WORD	count
 0Eh	DWORD	-> field list
---function 0Ah---
 0Ch	WORD	"newexp"
 0Eh	WORD	"explen"
 10h	DWORD	-> "expbuf"
---function 0Bh---
 0Ch	DWORD	-> filename
 10h	DWORD	-> owner name
 14h	WORD	type of join
 16h	WORD	"pCount"
 18h	DWORD	-> "pNames"
 1Ch	WORD	"sCount"
 1Eh	DWORD	-> "sNames"
---functions 0Ch, 0Dh, 0Fh---
 0Ch	WORD	file count
 0Eh	DWORD	-> file list
 12h	DWORD	count
 16h	DWORD	-> buffer
---function 0Eh---
 0Ch	WORD	file count
 0Eh	DWORD	-> file list
 12h	WORD	"op"
 14h	DWORD	"select"
 18h	DWORD	"reject"
 1Ch	WORD	count
 1Eh	DWORD	-> "res"
 22h	DWORD	-> "comp"
---function 10h---
 0Ch	WORD	file count
 0Eh	DWORD	-> file list
 12h	WORD	"op"
 14h	DWORD	"select"
 18h	DWORD	"reject"
---function 11h---
 0Ch	DWORD	machine name
---function 12h---
 0Ch	WORD	option
---function 13h---
 0Ch	WORD	subfunction
 0Eh	WORD	length of buffer
 10h	DWORD	-> buffer
---function 14h---
 0Ch	WORD	subfunction
 0Eh	DWORD	-> filename
 12h	WORD	"create"
 14h	DWORD	-> pathname
 18h	DWORD	-> owner name
 1Ch	WORD	owner access restrictions
 1Eh	WORD	number of fields
 20h	DWORD	-> field list
 24h	WORD	number of keys
 28h	DWORD	-> key list
 2Ch	WORD	"buflen"
 2Eh	DWORD	-> create parameters
---function 15h---
 0Ch	DWORD	-> "StoreName"
 10h	WORD	length of buffer
 12h	DWORD	-> buffer
---function 16h---
 0Ch	DWORD	-> "RecallName"
 10h	WORD	owner number
 12h	DWORD	-> owner list
 16h	WORD	open mode
 18h	WORD	length of buffer
 1Ah	DWORD	-> buffer
---function 17h---
 no additional fields???
---function 18h---
 0Ch	WORD	"rtype"
 0Eh	WORD	count
 10h	DWORD	-> "filebuf"
 14h	WORD	length of following buffer
 16h	DWORD	-> output buffer
---functions 19h, 1Ah---
 0Ch	WORD	"rtype"
 0Eh	WORD	count
 10h	DWORD	-> field buffer
 14h	WORD	length of following buffer
 16h	DWORD	-> output buffer
---function 1Bh---
 0Ch	WORD	subfunction
 0Eh	DWORD	-> filename
 12h	WORD	"create"
 14h	DWORD	-> pathname
 18h	DWORD	-> owner name
 1Ch	WORD	owner access restrictions
 1Eh	WORD	field count
 20h	DWORD	-> field list
 24h	WORD	number of keys
 26h	DWORD	-> list of keys
---function 1Ch---
 0Ch	WORD	count
 0Eh	DWORD	-> view name
 12h	WORD	length of following buffer
 14h	DWORD	-> output buffer
---function 1Dh---
 0Ch	DWORD	-> filename
 10h	WORD	file type
 12h	WORD	"deletepath"
---function 1Eh---
 0Ch	WORD	"dirtype"
 0Eh	DWORD	-> pathname
---function 1Fh---
 0Ch	WORD	function
 0Eh	DWORD	-> field name
 12h	WORD	attribute
 14h	WORD	size of buffer
 16h	DWORD	-> buffer for attributes
---function 20h---
 0Ch	DWORD	-> directory path
 10h	WORD	function
---function 21h---
 0Ch	DWORD	-> master password
 10h	WORD	"securityflag"
---function 22h---
 0Ch	DWORD	-> master password
 10h	WORD	function (add/modify/remove)
 12h	DWORD	-> user name
 16h	DWORD	-> password
 1Ah	WORD	global rights
 1Ch	WORD	count
 1Eh	WORD	length of following buffer
 20h	DWORD	-> "userbuf"
---function 23h---
 0Ch	DWORD	-> master password
 10h	DWORD	-> user name
 14h	WORD	function (allow/deny/getrights)
 16h	WORD	rights
 18h	DWORD	-> filename
 1Ch	WORD	number of field names in following buffer
 1Eh	DWORD	-> field names
 22h	WORD	maximum buffer length
 24h	DWORD	-> output buffer
---function 24h---
 0Ch	DWORD	-> user name
 10h	DWORD	-> password
---function 25h---
 0Ch	WORD	"charFcn"
 0Eh	WORD	"charType"
 10h	WORD	"charValue"
---function 26h---
 0Ch	DWORD	-> buffer
---function 27h---
 0Ch	WORD	option
 0Eh	WORD	type
 10h	WORD	size
 12h	WORD	"dec"
 14h	WORD	"dsize"
 16h	DWORD	-> value
 1Ah	DWORD	-> "retval"
 1Eh	DWORD	-> mask
 22h	WORD	"justify"
---function 28h---
 0Ch	DWORD	-> field name
 10h	WORD	length of buffer
 12h	DWORD	-> buffer for data
---function 29h---
 0Ch	WORD	option
 0Eh	WORD	type
 10h	WORD	size
 12h	WORD	"dec"
 14h	WORD	length of mask
 16h	DWORD	-> mask
--------A-7B8001-----------------------------
INT 7B R - AutoCAD Device Interface - PRINTER/PLOTTER - BEGIN PLOT
	AX = 8001h
	BX = file level
	    0000h binary file
	    0001h CAD/camera image file
	    0002h installed ADI driver
	CX = horizontal size in pixels
	DX = vertical size in pixels
Return: AX = status (0000h initialization failed, 0001h init successful)
	BX = allowed output format
	    0000h monochrome
	    0001h color (4 bits per pixel)
SeeAlso: AX=8002h,AX=8003h,INT 7B"AutoCAD",INT 7C"AutoShade"
--------A-7B8002-----------------------------
INT 7B R - AutoCAD Device Interface - PRINTER/PLOTTER - END PLOT
	AX = 8002h
SeeAlso: AX=8001h,AX=8003h
--------A-7B8003-----------------------------
INT 7B R - AutoCAD Device Interface - PRINTER/PLOTTER - ABORT PLOT
	AX = 8003h
SeeAlso: AX=8001h,AX=8002h
--------r-7C---------------------------------
INT 7C U - IBM REXX88PC command language
	???
--------E-7C---------------------------------
INT 7C - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ4
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 0C,INT 7B"GO32",INT 7D"GO32"
--------P-7C---------------------------------
INT 7C - PRINDIR v8.02+ - API
	AH = function
	   00h set output to Invisible mode
	   01h set output to LPT1
	   02h set output to LPT2
	   03h set output to LPT3
		04h set output to COM1
	   05h set output to COM2
	   06h set output to COM3
	   07h set output to COM4
	   08h set output to screen
	   09h set output to file
	   0Ah change file path
	       ES:DI -> new path
	       CX = length of path (max 41, but not range-checked)
	   0Bh change file name
	       ES:DI -> new filename
	       CX = length of new name (max 41, but not range-checked)
	   0Ch set redirected device
		(01h = LPT1 ... 03h = LPT3, 04h = COM1 ... 07h = COM4)
	   0Dh force buffer dump
	   0Eh set display color
	       AL = new color attribute (see #0013 at INT 10/AH=08h)
	   0Fh set popup hotkey
	       AL = hotkey scancode
	   10h toggle byte display
	       AL = new state (00h off, 01h on)
	   11h change buffer flush delay
	       AL = timer ticks before flush
Return: AX = status
	    0000h successful
	    0001h invalid function or nothing in buffer to be dumped
	    (documented as "nonzero = error")
Program: PRINDIR is a shareware printer-redirection program by J.M. Allen
	  Creations
Notes:	the installation check consists of testing for the ASCIZ signature
	  "PRINDIR N.NN" (where N.NN is the version number) two bytes beyond
	  the start of the interrupt handler
	prior versions of PRINDIR used INT 7A instead of INT 7C
SeeAlso: INT 7A"PRINDIR"
Index:	hotkeys;PRINDIR
--------A-7C---------------------------------
INT 7C - AutoShade v2 - RENDERING HARDCOPY DRIVER
Note:	this is the default interrupt vector for rendering hardcopy drivers
	  instead of INT 7A used by AutoCAD drivers
SeeAlso: INT 7A/AX=0001h"AutoCAD"
--------N-7C---------------------------------
INT 7C - SK-UPPS/SK-PASSPORT Data Link Interface (DLI) API
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an API on top of it Data Link Interface, allowing the
	  use of any of several network transport layers; this product is
	  called SK-PASSPORT in the USA.
Notes:	The installation check consists of testing for the ASCII signature
	  string "UPPS_DLI" immediately preceding the interrupt handler.
	To find the service interrupt being used by the driver, an application
	  should scan through the interrupt table until it finds an interrupt
	  vector with the "UPPS_DLI" string.
	There may be more than one DLI loaded, each having its own service
	  interrupt.
SeeAlso: AX=0000h,AX=0002h,AX=000Fh
Index:	installation check;SK-UPPS
--------N-7C0000-----------------------------
INT 7C - SK-UPPS Data Link Interface API - GET DRIVER VERSION
	AX = 0000h
Return: AH = major DLI version
	AL = minor DLI version
	DX = OEM signature (see #2430)
	CL = DLI 2.8+ topology: 1=Ethernet, 2=FDDI, 3=Token-Ring
SeeAlso: AX=0002h,AX=000Bh,AX=000Dh,AX=000Eh

(Table 2430)
Values for SK-UPPS Data Link Interface OEM signature (defined by SK):
 0001h		experimental
 3343h	('3C')	3COM
 4942h	('IB')	IBM
 4943h	('IC')	Intellicom
 494Eh	('IN')	Intel
 4B4Fh	('KO')	Kodiak
 4D41h	('MA')	Madge
 4E45h	('NE')	Novell
 4F43h	('OC')	Olicom
 5349h	('SI')	Siemens
 534Bh	('SK')	Schneider & Koch (SysKonnect)
 5744h	('WD')	Western Digital
--------N-7C0001-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DOWN DRIVER
	AX = 0001h
Return: AX = completion code (see #2431)
Note:	the DLI will refuse to unload if there are any protocols
	  (see AX=0007h) or clients (see AX=0010h) active.
Index:	uninstall;SK-UPPS Data Link Interface

(Table 2431)
Values for SK-UPPS completion code:
 0000h	SUCCESS
 0005h	INVALID_MULTICAST
 0006h	BUFFER_TOO_SMALL
 0007h	NO_BUFFERS_LEFT
 0008h	NO_RESOURCES_LEFT
 000Bh	ILLEGAL_PROTOCOL_ID
 000Ch	PROTOCOL_IN_USE
 000Dh	NO_MULTICAST_ADDRESS
 000Fh	PROTOCOLS_ACTIVE
 0010h	CLIENTS_ACTIVE
 001Bh	INVALID_MODE
 001Ch	MODE_NOT_SUPPORTED
 FFFFh	UNKNOWN_SERVICE
--------N-7C0002-----------------------------
INT 7C - SK-UPPS Data Link Interface API - GET DRIVER STATUS
	AX = 0002h
	ES:DI -> Status Information Block (SIB) (see #2443)
Return: AX = completion code (see #2431)
Note:	GET DRIVER INFO (AX=000Eh) should be used instead.
SeeAlso: AX=0000h,AX=000Bh,AX=000Dh,AX=000Eh
--------N-7C0003-----------------------------
INT 7C - SK-UPPS Data Link Interface API - CHANGE DRIVER ADDRESS
	AX = 0003h
	ES:DI -> new node address (6 bytes)
Return: AX = completion code (see #2431)
Note:	the DLI will refuse to change the address if any protocols
	  (see AX=0007h) are active
SeeAlso: AX=0001h,AX=000Eh
--------N-7C0004-----------------------------
INT 7C - SK-UPPS Data Link Interface API - REQUEST BUFFER
	AX = 0004h
	DX = protocol ID (see AX=0007h,#2434)
Return: AX = completion code (see also #2431)
	    0000h successful
		ES:BX -> Memory Buffer (Mbuf) (see #2432)
Note:	if the DLI has no free Mbufs, it will set an internal flag for the
	  protocol and later call the protocol's Event Upcall with
	  EV_BUFFER_AVAILABLE (see #2438,#2439) as soon as an Mbuf becomes
	  available.  There will only be one "buffer available" Upcall, even
	  if this function has been called several times before.
SeeAlso: AX=0005h,AX=0006h,AX=0012h,AX=0013h

Format of SK-UPPS Memory Buffer (Mbuf):
Offset	Size	Description	(Table 2432)
 00h	DWORD	-> NEXT Mbuf (linked list)
 04h	WORD	OFFSET of actual data within DATA area
 06h  2 BYTEs	reserved (currently unused)
 08h	WORD	LENGTH of actual data found in DATA area starting at OFFSET
 0Ah  2 BYTEs	reserved (currently unused)
 0Ch	DWORD	-> DATA area (size can be obtained via AX=000Eh call)
 10h	WORD	PROTOCOL ID of protocol currently "owning" the Mbuf
 12h	BYTE	IN USE flag; nonzero if Mbuf still in use by DLI (see AX=0006h)
 13h	BYTE	RECEIVE STATUS (bit 0-7 only; see AX=0007h - Receive Upcall)
--------N-7C0005-----------------------------
INT 7C - SK-UPPS Data Link Interface API - RELEASE BUFFER
	AX = 0005h
	ES:BX -> Mbuf (see #2432)
Return: nothing
SeeAlso: AX=0004h
--------N-7C0006-----------------------------
INT 7C - SK-UPPS Data Link Interface API - TRANSMIT FRAME
	AX = 0006h
	ES:BX -> Mbuf (see #2432)
Return: nothing
Notes:	The DLI will send LENGTH bytes found in the Mbuf's DATA area starting
	  at OFFSET. A complete and valid frame must be stored there. The DLI
	  will only copy the current node address (see AX=0003h) to the
	  source node field of the frame's MAC header.
	On Ethernet, the DLI will always send a minimum of 60 bytes, regardless
	  of the value found in the LENGTH field.
	This function returns immediately; the DLI will call the protocol's
	  Transmit Upcall (see #2433) when the frame has been sent.
	The Mbuf's IN USE field will be non-zero until the DLI calls the
	  Transmit Upcall.
SeeAlso: AX=0002h,AX=0004h,AX=0013h

(Table 2433)
Values SK-UPPS Transmit Upcall is called with:
	ES:BX -> Mbuf (NEXT field destroyed)
	interrupts disabled
Note:	On FDDI the bytes of the source and destination node fields in the MAC
	  header have been bit-swapped to physical address format.
--------N-7C0007-----------------------------
INT 7C - SK-UPPS Data Link Interface API - REGISTER PROTOCOL
	AX = 0007h
	ES:BX -> Protocol Control Block (see #2434)
Return: AX = completion code (see #2431)
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an API on top of its Data Link Interface, allowing the
	  use of any of several network transport layers
SeeAlso: AX=0008h,AX=000Bh

Format of SK-UPPS Protocol Control Block (PCB):
Offset	Size	Description	(Table 2434)
 00h	WORD	(big-endian) protocol type
 02h	WORD	protocol mode (see #2435)
 04h	DWORD	-> Receive Upcall routine (see #2436)
 08h	DWORD	-> Transmit Upcall routine
 0Ch	DWORD	-> Event Upcall routine (see #2438)
 10h	DWORD	-> ASCIZ protocol name (zero if none)
 14h	WORD	protocol ID will be returned here (always non-zero)

Bitfields for SK-UPPS protocol mode:
Bit(s)	Description	(Table 2435)
 0	promiscuous mode; protocol receives all frames regardless of their
	  destination (PROTOCOL TYPE must be FFFFh)
 1	if set, protocol's Event Upcall will be called on entry and exit of the
	  DLI's Interrupt Service Routine (see event codes below)
 2	DLI 2.2+ hook mode; protocol receives all directed frames destined for
	  this station (PROTOCOL TYPE must be FFFFh)
 3	DLI 2.3+ receive error frames (only valid in promiscuous mode (0))
 4-5	DLI 2.5+ frame type:
	00 Ethernet II; specify type code in PROTOCOL TYPE field (high-low)
	01 IEEE 802.2; specify Service Access Point (SAP) in MSB
	      (offset 0) of PROCOTOL TYPE field; LSB must be zero
	10 IEEE 802.2 with SNAP header; specify type code in PROTOCOL TYPE
	      field (high-low)
	11 reserved (currently unused)
 6	DLI 2.5+ if set, protocol's Event Upcall will be called with event code
	  EV_BUFFER_WANTED, when DLI runs out of Mbufs
 7	DLI 2.7+ chain mode; if set, client allows the specified frame type to
	  be shared with other clients
 8	DLI 2.8+ receive non-LLC frames rather than LLC frames
 9	DLI 2.8+ receive all multicast frames (see also AX=0009h)
 10-15	reserved (currently unused; must be zero)
Notes:	If PROTOCOL TYPE is FFFFh and neither the "promiscuous" nor the "hook"
	  mode is set, the protocol receives all frames that did not match
	  any registered frame type (demultiplexor mode).
	Protocols using "promiscuous", "hook" or "chain" mode should always
	  return from the Receive Upcall with the received Mbuf in ES:BX and
	  the Carry Flag set. The DLI will then pass the Mbuf to the FEED BACK
	  BUFFER function (see AX=000Fh).
	Some DLIs do not support all or even any of the "promiscuous",
	  "receive non-LLC" and "receive all multicasts" mode bits.

(Table 2436)
Values SK-UPPS Receive Upcall is called with:
 ES:BX -> Mbuf
 AX = receive status (see #2437) (also stored in Mbuf's RECEIVE STATUS field)
 interrupts disabled

Bitfields for SK-UPPS receive status:
Bit(s)	Description	(Table 2437)
 0-2	reserved (0), currently unused
 3	frame check sequence (FCS) error
 4	overflow (frame too long)
 5	framing error
 6	reserved (0), currently unused
 7	non-LLC frame (see 8 of PCB's protocol mode field)
 8-15	reserved (0), currently unused
Notes:	The protocol's Receive Upcall routine will be called whenever a frame
	  matching the specified frame type is received. A received frame is
	  passed to the protocol in the Mbuf's DATA area at OFFSET and its size
	  is LENGTH bytes.
	The receive status passed to the Receive Upcall in register AL is
	  always zero, except for protocols using "non-LLC" mode (8 of PCB's
	  protocol mode field) or "promiscuous" mode together with "receive
	  error frames" (0 & 3).
	Upcalls are FAR routines and must return with a RET FAR. If the Carry
	  Flag is set on return from a Receive or Transmit Upcall, then ES:BX
	  must point to an Mbuf, which the DLI will then pass to the RELEASE
	  BUFFER function (see AX=0005h). See also notes for PROTOCOL MODE.

(Table 2438)
Values SK-UPPS Event Upcall is called with:
 AX = event code (see #2439)
Note:	All Event Upcalls may be ignored by the protocol.

(Table 2439)
Values for SK-UPPS Event Upcall event code:
 00h	EV_BUFFER_AVAILABLE client may now call REQUEST BUFFER (AX=0004h)
 01h	EV_ISR_START	    start of Interrupt Service Routine
 02h	EV_ISR_END	    end of ISR (see bit 1 in PCB's protocol mode field)
 03h	EV_BUFFER_WANTED    DLI temporarily out of Mbufs
 04h	EV_NETWORK_STATUS   DLI 2.8+ network status -- DX=status (see #2440)
 05h	EV_IO_CONTROL	    DLI 2.8+ I/O control -- DX=subfunc (see AX=0016h)

Bitfields for EV_NETWORK_STATUS in register DX:
Bit(s)	Description	(Table 2440)
	Token-Ring		FDDI
 15	SIGNAL_LOSS		SIGNAL_LOSS
 14	HARD_ERROR		HARD_ERROR
 13	SOFT_ERROR		SOFT_ERROR
 12	TRANSMIT_BEACON		TRANSMIT_BEACON
 11	LOBE_WIRE_FAULT		PATH_TEST_FAILED
 10	AUTO_REMOVAL		SELF_TEST_REQUIRED
 9	reserved		reserved
 8	REMOVE_RECEIVED		REMOTE_DISCONNECT
 7	COUNTER_OVERFLOW	reserved
 6	SINGLE_STATION		DUPLICATE_ADDRESS
 5	RING_RECOVERY		NO_RING_OP_STATUS
 4	reserved		VERSION_MISMATCH
 3	reserved		STUCK_BYPASS
 2	reserved		FDDI_EVENT
 1	reserved		RING_OP_CHANGE
 0	reserved		reserved
Note:	EV_NETWORK_STATUS is not supported on Ethernet
--------N-7C0008-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DISABLE PROTOCOL
	AX = 0008h
	BX = protocol ID (see #2434)
Return: AX = completion code (see #2431)
Note:	the DLI will handle any Mbufs given to TRANSMIT FRAME (AX=0006h) as if
	  they had been given to TRANSMIT FRAME RELEASE (AX=0013h).
	all multicast addresses registered for this protocol will be disabled.
	after this function returns, the protocol's Upcall routines will no
	  longer be called.
SeeAlso: AX=0007h,AX=000Bh
--------N-7C0009-----------------------------
INT 7C - SK-UPPS Data Link Interface API - REGISTER MULTICAST
	AX = 0009h
	BX = protocol ID (see #2434)
	ES:DI -> multicast address (6 bytes)
Return: AX = completion code (see #2431)
Notes:	The broadcast address is always enabled.
	Set bit 9 of PCB's protocol mode field in REGISTER PROTOCOL call
	  (AX=0007h) to receive all multicast frames.
SeeAlso: AX=000Ah,AX=0014h
--------N-7C000A-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DISABLE MULTICAST
	AX = 000Ah
	BX = protocol ID (see #2434)
	ES:DI -> multicast address (6 bytes)
Return: AX = completion code (see #2431)
SeeAlso: AX=0009h,AX=0014h
--------N-7C000B-----------------------------
INT 7C - SK-UPPS Data Link Interface API - GET PROTOCOL LIST
	AX = 000Bh
	ES:DI -> protocol ID buffer
	CX = number of 2-byte protocol IDs that may be stored in buffer
Return: AX = completion code (see #2431)
	CX = number of active protocols (regardless of value returned in AX)
	protocol ID buffer filled with active protocol IDs
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an API on top of its Data Link Interface, allowing the
	  use of any of several network transport layers
Note:	If the buffer supplied is too small, CX still contains the total number
	  of active protocols and the buffer has been filled until full.
SeeAlso: AX=000Ch,AX=0014h
--------N-7C000C-----------------------------
INT 7C - SK-UPPS Data Link Interface API - GET PROTOCOL STATUS
	AX = 000Ch
	BX = protocol ID (see #2434,AX=000Bh)
	ES:DI -> Protocol Status Block (see #2441)
Return: AX = completion code (see #2431)
SeeAlso: AX=000Bh,AX=0014h

Format of SK-UPPS Protocol Status Block (PSB):
Offset	Size	Description	(Table 2441)
 00h	DWORD	-> ASCIZ protocol name
 04h	WORD	protocol mode (see #2435)
 06h	WORD	protocol type (see AX=0007h)
 08h	WORD	number of registered multicasts (see AX=0009h,AX=0014h)
--------N-7C000D-----------------------------
INT 7C - SK-UPPS Data Link Interface API - GET DRIVER STATISTICS
	AX = 000Dh
	BX = flag: 0=don't clear statistics, 1=clear statistics
	ES:DI -> Statistics Data Block (see #2442)
Return: AX = completion code (see #2431)
SeeAlso: AX=0002h,AX=0015h

Format of SK-UPPS Statistics Data Block (SDB):
Offset	Size	Description	(Table 2442)
 00h	DWORD	node uptime in ticks (1/18.21 sec.)
 04h	DWORD	bytes received
 08h	DWORD	bytes transmitted
 0Ch	DWORD	frames received
 10h	DWORD	frames transmitted
 14h	DWORD	multicast bytes received
 18h	DWORD	multicast frames received
 1Ch	DWORD	unrecognized frames
 20h	WORD	missed frames
 22h	WORD	frame check sequence (FCS) errors
 24h	WORD	framing errors
 26h	WORD	babbling errors
 28h	WORD	late collision errors
 2Ah	WORD	loss of carrier errors
 2Ch	WORD	16 retries failed errors
 2Eh	WORD	overflow errors
Note:	fields 26h through 2Ch are always zero, except in some very old
	  versions of the DLI.	Use GET MEDIA STATISTICS (AX=0015h) to get
	  more detailed information.
--------N-7C000E-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DLI 2.5+ - GET DRIVER INFO
	AX = 000Eh
	ES:DI -> Driver Information Block (see #2443)
	BX = offset of 1st field within DIB to be returned
	CX = number of bytes to be returned
Return: AX = completion code (see #2431)
	CX = number of bytes copied (regardless of value returned in AX)
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an API on top of its Data Link Interface, allowing the
	  use of any of several network transport layers
SeeAlso: AX=0000h,AX=0002h,AX=000Bh,AX=000Dh,AX=0015h

Format of SK-UPPS Driver Information Block (DIB):
Offset	Size	Description	(Table 2443)
 00h  6 BYTEs	physical node address (from adapter's ROM)
 06h  6 BYTEs	current node address (see AX=0003h)
 0Ch	BYTE	adapter id (defined by OEM)
 0Dh	BYTE	IRQ line (FFh if none)
 0Eh	DWORD	-> shared memory (zero if none)
 12h	DWORD	size of shared memory (zero if none)
 16h	WORD	base I/O port (zero if none)
 18h	BYTE	DMA line (FFh if none)
 19h	BYTE	DLI 2.4+ topology (see AX=0000h)
 1Ah	WORD	size of an Mbuf's DATA area (see #2432)
 1Ch  2 BYTEs	reserved (currently unused)
 1Eh	WORD	total number of Mbufs the DLI has
 20h	WORD	maximum number of Mbufs that can be allocated via REQUEST
		  BUFFER (AX=0004h) and SYNC REQUEST BUFFER (AX=0012h)
 ---- end of Status Information Block returned by GET DRIVER STATUS (AX=0002h)
 22h	DWORD	-> ASCIZ adapter name
 26h	WORD	number of I/O ports used (zero if none)
 28h	DWORD	line speed in bits/sec.
--------N-7C000F-----------------------------
INT 7C - SK-UPPS Data Link Interface API - FEED BACK BUFFER
	AX = 000Fh
	ES:BX -> Mbuf (see #2432)
Return: nothing
Notes:	A protocol may call this function instead of returning the Mbuf
	  directly from the Receive Upcall if it is running in "promiscuous",
	  "hook" or "chain" mode.
SeeAlso: AX=0007h
--------N-7C0010-----------------------------
INT 7C - SK-UPPS Data Link Interface API - CLIENT HOOK
	AX = 0010h
Return: nothing
Notes:	An application having no active protocols may call this function to
	  prevent the DLI from unloading.
SeeAlso: AX=0001h,AX=0011h
--------N-7C0011-----------------------------
INT 7C - SK-UPPS Data Link Interface API - CLIENT UNHOOK
	AX = 0011h
Return: nothing
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an API on top of its Data Link Interface, allowing the
	  use of any of several network transport layers
SeeAlso: AX=0010h
--------N-7C0012-----------------------------
INT 7C - SK-UPPS Data Link Interface API - SYNC REQUEST BUFFER
	AX = 0012h
	DX = protocol ID (see #2434)
Return: AX = completion code (see #2431)
	if AX=0000h: ES:BX -> Mbuf (see #2432)
Note:	If the protocol wants to be informed when an Mbuf becomes available,
	  REQUEST BUFFER (AX=0004h) should be used instead.
SeeAlso: AX=0004h,AX=0005h,AX=0006h,AX=0013h
--------N-7C0013-----------------------------
INT 7C - SK-UPPS Data Link Interface API - TRANSMIT FRAME RELEASE
	AX = 0013h
	ES:BX -> Mbuf (see #2432)
Return: nothing
Notes:	Returns immediately; The protocol's Transmit Upcall will NOT be called.
	The Mbuf may no more be used by the protocol in any way (i.e. the
	  Mbuf's IN USE field may not be polled).
SeeAlso: AX=0004h,AX=0013h
--------N-7C0014-----------------------------
INT 7C - SK-UPPS Data Link Interface API - GET MULTICAST LIST
	AX = 0014h
	BX = protocol ID (see #2434,AX=000Bh)
	ES:DI -> multicast address buffer
	CX = number of 6-byte multicast addresses that may be stored in buffer
Return: AX = completion code (see #2431)
	CX = number of registered multicast addresses for this protocol
	  (regardless of value returned in AX)
	multicast address buffer filled with multicast addresses registered for
	  this protocol
Note:	If the buffer supplied is too small, CX still contains the total number
	  of registered multicast addresses for this protocol and the buffer
	  has been completely filled
SeeAlso: AX=000Bh,AX=0009h,AX=000Ch
--------N-7C0015-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DLI 2.6+ - GET MEDIA STATISTICS
	AX = 0015h
	ES:DI -> media-specific statistics buffer (see #2444,#2445,#2446)
	BX = offset of 1st field within MSS to be returned
	CX = number of bytes to be returned
Return: AX = completion code (see #2431)
	CX = number of bytes copied (regardless of value returned in AX)
Note:	not supported by all DLIs (will return AX=FFFFh if not supported).
SeeAlso: AX=0000h,AX=000Dh

Format of SK-UPPS media-specific statistics for Ethernet:
Offset	Size	Description	(Table 2444)
 00h	DWORD	alignment errors
 04h	DWORD	frame check sequence (FCS) errors
 08h	DWORD	single collision frames
 0Ch	DWORD	multiple collision frames
 10h	DWORD	signal quality error (SQE) test errors
 14h	DWORD	deferred transmissions
 18h	DWORD	late collisions
 1Ch	DWORD	excessive collisions
 20h	DWORD	internal MAC transmit errors
 24h	DWORD	carrier sense errors
 28h	DWORD	excessive deferrals
 2Ch	DWORD	frame too longs
 30h	DWORD	in range length errors
 34h	DWORD	out of range length fields
 38h	DWORD	internal MAC receive errors

Format of SK-UPPS media-specific statistics for FDDI:
Offset	Size	Description	(Table 2445)
 00h	DWORD	SMT operating version id (refer to ANSI 7.1.2.2)
 04h	DWORD	SMT CF state: 1=Isolated, 2= Wrap_S, 3=Wrap_A, 4=Wrap_B,
		  5=Wrap_AB, 6=Thru (refer to ANSI SMT 9.7.4.3)
 08h	DWORD	SMT frames sent
 0Ch	DWORD	SMT frames received
 10h	DWORD	SMT ring up count
 14h  6 BYTEs	MAC upstream neighbour
 1Ah  6 BYTEs	MAC downstream neighbour
 20h	DWORD	MAC frame counter (refer to ANSI MAC 2.2.1)
 24h	DWORD	MAC error counter ( " )
 28h	DWORD	MAC lost counter ( " )
 2Ch	BYTE	port 1 link error estimate (ranges from 10**-4 to 10**-15 and
		  is reported as the absolute value of the exponent)
 2Dh	BYTE	port 2 link error estimate ( " )
 2Eh  2 BYTEs	reserved (currently unused)
 30h	DWORD	attachment class: 1=single-attachment (S PORT),
		  2=dual-attachment (A/B PORT pairs), 3=concentrator (M PORTs)
 34h	DWORD	attachment optical bypass present: 1=true, 2=false

Format of SK-UPPS media-specific statistics for Token-Ring:
Offset	Size	Description	(Table 2446)
 00h  6 BYTEs	upstream neighbour
 06h	WORD	local ring number
 08h	DWORD	ring up count
 0Ch	DWORD	signal loss errors
 10h	DWORD	lobe wire faults
 14h	DWORD	ring recovery count
 18h	DWORD	line errors
 1Ch	DWORD	burst errors
 20h	DWORD	ARI/FCI errors
 24h	DWORD	lost frame errors
 28h	DWORD	receive congestion errors
 2Ch	DWORD	frame copied errors
 30h	DWORD	token errors
 34h	DWORD	DMA bus errors
 38h	DWORD	DMA parity errors
 3Ch	DWORD	receive overflow errors
--------N-7C0016-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DLI 2.8+ - DRIVER I/O CONTROL
	AX = 0016h
	DX = subfunction; bits 14-15 specify direction of I/O:
		00 no data at all (ES:BX undefined)
		01 driver -> application (GET)
		10 application -> driver (SET)
		11 both directions (GET/SET)
	ES:BX -> I/O buffer (optional)
	CX = size of buffer (if ES:BX valid)
Return: AX = completion code; defined by OEM
Program: SK-UPPS is the Schneider & Koch Universal Portable Protocol Stack,
	  which provides an API on top of its Data Link Interface, allowing the
	  use of any of several network transport layers
Notes:	not supported by all DLIs (will return AX=FFFFh if not supported)
	subfunction codes are defined by OEMs
SeeAlso: AX=0001h
--------N-7C0017-----------------------------
INT 7C - SK-UPPS Data Link Interface API - DLI 2.8+ - INTERRUPT REQUEST
	AX = 0017h
Return: AX = completion code (see #2431)
Notes:	not supported by all DLIs (will return AX=FFFFh, if not supported).
	must be called with interrupts disabled; when the client re-enables
	  interrupts, an interrupt will be generated and reported to the client
	  through an Event Upcall (see AX=0007h [EV_ISR_START/EV_ISR_END])
SeeAlso: AX=0007h
--------t-7D---------------------------------
INT 7D O - [obsoleted proposal] - ALTERNATE MULTIPLEX INTERRUPT
Note:	this interface has been moved to INT 2D; there are no known
	  implementations on INT 7D
SeeAlso: INT 2D,INT 2F
--------S-7D---------------------------------
INT 7D U - YTERM 1.4 - CLOCK SUPPORT
SeeAlso: INT 7E"YTERM"
--------E-7D---------------------------------
INT 7D - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ5
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 0D,INT 7C"GO32",INT 7E"GO32"
--------U-7D---------------------------------
INT 7D - HyperPAD v2.2 - API ACCESS
Note:	this vector is hooked but immediately passed on (without checking
	  whether the previous handler was 0000h:0000h).  The sole purpose of
	  this vector is to provide the address of the data area described
	  below (see #2447).

Format of HyperPAD data area:
Offset	Size	Description	(Table 2447)
 -16h	DWORD	pointer to ??? FAR function
 -12h	DWORD	pointer to callback setting function
		[C calling conventions, (*callback)(int (_loadds far *)()) ]
 -0Eh 6 BYTEs	signature "BRC001"
 -08h	DWORD	pointer to previous INT 7D handler
 -04h	DWORD	pointer to ??? data
 00h		HyperPAD INT 7D handler
----------7D---------------------------------
INT 7D - IBM DOS 6.1 E.EXE - ???
Note:	E.EXE checks whether this interrupt is in use (not 0000h:0000h),
	  and if it is used, attempts to load E55VGA.EX instead of the 
	  default E.EX overlay.	 However, E55VGA.EX is not included in
	  IBM DOS 6.1.
----------7D00-------------------------------
INT 7D - SCSILink - RESET SCSI BUS
	AH = 00h
Program: SCSILink is a TSR by Cross Products Ltd which allows its PC-hosted
	  cross assemblers and similar products to communicate with Cross
	  Products hardware debuggers
Desc:	reset all devices on the SCSI bus
Note:	the installation check is the signature "SCSILINK" immediately prior
	  to the interrupt handler
Index:	installation check;SCSILink
----------7D01-------------------------------
INT 7D - SCSILink - CONNECT TO TARGET
	AH = 01h
	AL = target ID
Return: CF clear if successful
	CF set on error
	    AL = initiator error
	    AH = target error
Desc:	arbitrate the use of the bus and select the specified target device
----------7D02-------------------------------
INT 7D - SCSILink - SEND COMMAND
	AH = 02h
	ES:BX -> parameter block (see #2448)
Return: CF clear if successful
	CF set on error
	    AL = initiator error
	    AH = target error
Desc:	send the specified command block to the target device and perform any
	  related I/O

Format of SCSILink parameter block:
Offset	Size	Description	(Table 2448)
 00h	DWORD	size of command block
 04h	DWORD	address of command block (see #2449)
 08h	DWORD	size of buffer
 0Ch	DWORD	address of buffer

Format of SCSILink command block:
Offset	Size	Description	(Table 2449)
 00h		info not yet available
----------7D03-------------------------------
INT 7D - SCSILink - SET TIMEOUT
	AH = 03h
	AL = timeout selector (see #2450)
	BX = new value in 55ms ticks
Desc:	change an internal timeout value to allow communication with very
	  slow targets

(Table 2450)
Values for SCSILink timeout selector:
 00h	time to wait for bus (default 18)
 01h	time to wait for new phase (default 5)
 02h	maximum time to send/receive block (default 18)
 03h	time to wait for reselect (default 180)
----------7D04-------------------------------
INT 7D - SCSILink - GET ERROR STRING
	AH = 04h
	AL = error number
Return: ES:BX -> ASCIZ error string for error number
----------7D05-------------------------------
INT 7D - SCSILink - GET ADDRESS
	AH = 05h
Return: AL = DMA channel
	AH = initiator ID
	BX = card address
Desc:	determine the current hardware configuration
----------7D06-------------------------------
INT 7D - SCSILink - PUT DATA
	AH = 06h
	CX = number of bytes to store (0001h-0100h)
	ES:BX -> data to be saved
Return: CF clear if successful
	CF set on error
	    AL = error code (01h = too much data)
Note:	the specified data is stored in SCSILink's PSP
SeeAlso: AH=07h
----------7D07-------------------------------
INT 7D - SCSILink - GET DATA
	AH = 07h
	CX = number of bytes to retrieve (0001h-0100h)
	ES:BX -> buffer for data
Return: CF clear if successful
	CF set on error
	    AL = error code (01h = too much data)
Note:	retrieve data previously stored with AH=06h
SeeAlso: AH=06h
----------7D08-------------------------------
INT 7D - SCSILink - TERMINATE SESSION
	AH = 08h
Desc:	indicate to any other programs that intercept INT 7D that the program
	  has finished with the link
Note:	the program should call this function even if a SCSI error caused its
	  termination
----------7D09-------------------------------
INT 7D - SCSILink - POLL REQUEST
	AH = 09h
	AL = target ID
Return: AL = status
	    FEh resident driver experienced SCSI error
		 FFh resident driver handleded event
Desc:	give any drivers chained onto INT 7D a chance to handle an exception
	  not specifically handled by the calling program
Notes:	this service exists so that resident disk servers, etc. can continue
	  running even while debuggers and profilers are active
	the resident driver assumes that a connection has been established and
	  attempts to leave the target connected
--------*-7E---------------------------------
INT 7E - RESERVED FOR DIP, Ltd. ROM LIBRARY
--------S-7E---------------------------------
INT 7E U - YTERM 1.4 - ???
SeeAlso: INT 7D"YTERM",INT 7F"YTERM"
--------E-7E---------------------------------
INT 7E - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ6
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 0E,INT 7D"GO32",INT 7F"GO32"
--------s-7E00FE-----------------------------
INT 7E - SBOS - UNINSTALL
	AX = 00FEh
Return: nothing, SBOS removed
Program: SBOS is a SoundBlaster emulator for the Gravis UltraSound
Note:	this function may not be called if any SBOS vectors have been hooked
SeeAlso: INT 21/AX=FD12h
--------m-7E5857BL57-------------------------
INT 7E - XLOAD - INSTALLATION CHECK
	AX = 5857h
	BL = 57h
Return: AX = 0000h if installed
Program: XLOAD is the LOADHIGH-equivalent from Helix Software's Netroom
SeeAlso: AX=5857h/BL=5Ah,AX=5857h/BL=5Bh
--------m-7E5857BL5A-------------------------
INT 7E - XLOAD - GET ???
	AX = 5857h
	BL = 5Ah
Return: AX = 0000h
	CX = ???
	DS:SI -> ???
SeeAlso: AX=5857h/BL=57h,AX=5857h/BL=5Bh
--------m-7E5857BL5B-------------------------
INT 7E - XLOAD - GET XLOAD MEMORY SIZE
	AX = 5857h
	BL = 5Bh
Return: AX = 0000h
	CX = segment of XLOAD TSR
	DX = size of memory block in which XLOAD TSR is located
SeeAlso: AX=5857h/BL=57h,AX=5857h/BL=5Ah
--------!---Section--------------------------
Interrupt List, part 12 of 12
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994,1995 Ralf Brown
--------V-7F---------------------------------
INT 7F - Halo88 - API
	BX = function number (see #2451)
	additional parameters on stack
Return: ???
Program: Halo88 is a suite of graphics routines
Note:	according to Stuart Kemp, the code appears to make no provisions for
	   chaining

(Table 2451)
Values for Halo88 API function:
 64h	arc
 65h	bar
 66h	box
 67h	circle
 68h	clr
 69h	default hatch style
 6Ah	default line style
 6Bh	delhcur
 6Ch	delln / deltcur
 6Dh	ellipse
 6Eh	fill
 6Fh	flood
 70h	flood2
 71h	init graphics
 72h	init hcur
 73h	init marker
 74h	init tcur
 75h	inqarc
 76h	inqbknd
 77h	inqclr
 78h	inqerr
 79h	inqgcur
 7Ah	inqhcur
 7Bh	inqmarker
 7Dh	inqtcur
 7Eh	inqtext
 7Fh	lnabs
 80h	lnrel
 81h	markerabs
 82h	markerrel
 83h	moveabs
 84h	movehcurabs
 85h	movehcurrel
 86h	moverel
 87h	movetcurabs
 88h	movetcurrel
 89h	movefrom
 8Ah	moveto
 8Bh	pie
 8Ch	polylnabs
 8Dh	polylnrel
 8Eh	ptabs
 8Fh	ptrel
 91h	setasp
 92h	set color
 93h	set font
 94h	set hatch	style
 95h	set line style
 97h	settext
 98h	set text color
 99h	btext
 9Ah	setseg
 9Bh	display
 9Ch	setscreen
 9Eh	close graphics
 9Fh	ftinit
 A0h	ftlocate
 A1h	ftext
 A5h	set viewport
 A6h	set window
 A7h	set world
 AAh	ftcolor
 ACh	initlp
 ADh	inqasp
 AEh	inqdev
 AFh	inqdisplay
 B0h	inqft
 B1h	inqftcolor
 B2h	inqinterlace
 B3h	inqlpa
 B4h	inqlpg
 B5h	inqmode
 B6h	inqscreen
 B7h	inqversion
 B8h	roam
 B9h	scroll
 BAh	setieee
 BBh	set interlace
 BCh	shift
 BDh	start graphics
 BEh	vpan
 CBh	gwrite
 CCh	gread
 CDh	setxor
 CEh	rbox
 CFh	rcir
 D0h	rlnabs
 D1h	rlnrel
 D2h	delbox
 D3h	delcir
 D5h	setseg2
 DCh	worldoff
 DDh	mapwtod
 DEh	mapdtow
 DFh	mapwton
 E0h	mapntow
 E1h	mapdton
 E2h	mapntod
 E3h	inqworld
 E4h	inqviewport
 E5h	set line width
 E6h	lnjoint
 E7h	set locator
 E8h	read locator
 E9h	setdev
 EBh	setstext
 ECh	setstclr
 EDh	setstang
 EEh	stext
 EFh	inqstext
 F0h	setdegree
 F1h	inqstsize
 F2h	polyfabs
 F3h	polyfrel
 F4h	inqdrange
 F5h	inqstang
 F6h	orglocator
 F7h	inqlocator
 F8h	inqarea
 F9h	setipal
 FAh	setborder
 FBh	inqcrange
 FEh	setclip
 FFh	fcir
100h	setcrange
101h	setdrange
102h	setlattr
103h	polycabs
104h	polycrel
108h	memcom
109h	memexp
10Ah	memmov
10Eh	movefx
10Fh	movetx
110h	inqrgb
111h	save image
112h	restore image
113h	setapal
114h	setxpal
118h	inqtsize
12Eh	gprint
130h	setprn
131h	setpattr
133h	setbattr
135h	pexpand
136h	ptnorm
137h	pfnorm
13Bh	inqprn
13Ch	lopen
13Dh	lclose
13Eh	lappend
13Fh	lrecord
140h	lswitch
142h	inqfun
15Dh	lsetup
15Eh	lrest
15Fh	lsave
--------N-7F---------------------------------
INT 7F - CONVERGENT TECHNOLOGIES ClusterShare CTOS ACCESS VECTOR
	AL = request ID
	    01h "Request"/"RequestDirect"
		ES:BX -> pRq
		DX ignored
	    04h "Wait"
		ES:BX -> ppMsgRet
		DX = exchange
	    05h "AllocExch"
		ES:BX -> pExchRet
	    06h "DeAllocExch"
		DX = exchange
	    07h "Check"
		ES:BX -> ppMsgRet
		DX = exchange
	CX = 4354h ('CT')
Return: AX = status
	    0000h successful
--------S-7F---------------------------------
INT 7F - Telebit ACS SERIAL I/O
	ES:SI-> parameter block (see #2452)
Return: CF set on error
	CF clear on success
Notes:	the signature "PDGATEWRKSTNIF" appears just prior to the interrupt
	  handler; this serves as the installation check
Index:	installation check;Telebit ACS Serial I/O

Format of Telebit ACS parameter block:
Offset	Size	Description	(Table 2452)
 00h	BYTE	command (see #2453)
 01h	BYTE	gateway number
 02h	BYTE	reserved
 03h	BYTE	port
 04h 17 BYTEs	auxiliary buffer
 15h	BYTE	session
 16h	WORD	count of bytes passed to API
 18h	DWORD	buffer pointer passed to/from API
 1Ch	WORD	count of bytes passed from API
 1Eh	BYTE	return code (see #2454)

(Table 2453)
Values for Telebit ACS command:
 3Ch	status
 3Dh	connect
 3Eh	disconnect
 3Fh	read
 40h	data/command write
 41h	clear receive buffer
 42h	get configuration
 43h	get receiver status
 44h	raw write
 45h	search servers
 46h	set transmit buffer size

(Table 2454)
Values for Telebit ACS return code:
 00h	success
 01h	invalid session
 05h	servername invalid
 06h	NetWare fileserver bindery is locked
 07h	communication server not active
 08h	general failure in NetWare fileserver
 09h	not logged into a fileserver
 10h	connection table full
 11h	no response from communication server
 12h	connection attempt terminated abnormally
 13h	connection refused - no sessions available
 14h	gateway number/port already in use
 15h	invalid connection response
 16h	port invalid
 17h	incorrect version in server response
 18h	gateway number/port combination not configured
 19h	initialization has not been completed
 20h	no more sockets are available
 21h	no active poolname
 23h	FATAL internal interface error
 24h	registration of host workstation failed - name is already in use
 25h	registration of host workstation failed - workstation name table full
 26h	registration of host workstation failed - only one session may be
	  registered for dial-in
 FFh	Telebit ACS API is busy - retry later
--------N-7F---------------------------------
INT 7F - Non-dedicated NetWare 2.x File Server - ENTER CONSOLE MODE
Notes:	the installation check consists of checking for the signature "Lynn"
	  in the four bytes preceding the interrupt handler; if present, the
	  current program is running as a DOS task on a non-dedicated NetWare
	  2.x file server.
	Before placing the server into "console" mode, it is recommended that
	  NetWare broadcast messages be disabled with INT 21/AH=DEh/DL=00h.
SeeAlso: INT 21/AH=DEh/DL=04h
Index:	installation check;non-dedicated NetWare server
--------S-7F---------------------------------
INT 7F U - YTERM - ???
SeeAlso: INT 7E"YTERM"
--------E-7F---------------------------------
INT 7F - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ7
Notes:	this vector is overwritten when GO32 starts but is not restored by
	  early versions of the DOS extender
	the newest versions of GO32 dynamically allocate the vectors used
	  for the relocated IRQs, much as DESQview does (see INT 50"DESQview")
SeeAlso: INT 0F,INT 7E"GO32"
----------7F---------------------------------
INT 7F - Canon IXHND2 Scanner Interface
--------N-7F---------------------------------
INT 7F - Alloy 386/MultiWare (MW386), Novell-Type Network Executive (NTNX)
Notes:	the words at C800h:0000h and C800h:0002h will both be 584Eh if the
	  MW386 multitasking system is present (i.e. signature "NXNX")
	NTNX allows its API to be placed on a different interrupt than 7Fh at
	  load time.  To determine the actual vector used, open the device
	  "SPOOLER" with INT 21/AX=3D02h, place it in RAW mode with
	  INT 21/AX=4400h and INT 21/AX=4401h, then read one byte which will
	  be the actual interrupt number being used; the other interrupts may
	  be found with INT 7F/AH=09h/CL=03h
--------N-7F---------------------------------
INT 7F - Alloy NetWare Support Kit (ANSK) v2.2+ - INSTALLATION CHECK
Note:	a program may determine that it is running on an ANSK Slave by checking
	  the five bytes at F000h:0000h for the ASCIZ signature "ANSK"; this
	  address is RAM, and should not be written.  However, the above check
	  will not work on Slaves with <1mb ram="" or="" those="" using="" the="" slim.sys="" device="" driver="" --------n-7f00-------------------------------="" int="" 7f="" -="" alloy="" ntnx,="" mw386="" -="" semaphore="" lock="" and="" wait="" ah="00h" ds:dx="" -=""> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #2455)
	AH = semaphore owner if status=02h
SeeAlso: AH=01h,AH=02h,AH=41h,INT 67/AH=00h

(Table 2455)
Values for Alloy function status:
 00h	successful
 01h	invalid function
 02h	semaphore already locked
 03h	unable to lock/unlock semaphore
 04h	semaphore space exhausted
 05h	host/target PC did not respond (NTNX)
--------T-7F00-------------------------------
INT 7F - MultiLink Advanced v1.0+ - ENQUEUE SYSTEM RESOURCE
	AH = 00h
	BX = resource identifier
	AL = wait flag
Return: AL = status
	    00h successful
	    01h resource not available
	    02h user error
Notes:	the installation check consists of ensuring that the interrupt vector
	  is not pointing at segment 0000h, then checking whether the byte
	  at offset 0000h in the interrupt handler's segment is E9h
	function will not return until the resource is available if AL is
	  nonzero on entry
	a maximum of 100 resources may be enqueued at once
SeeAlso: AH=01h"MultiLink"
--------N-7F00-------------------------------
INT 7F - G8BPQ v4.07+ - GET NODE/SWITCH VERSION AND DESCRIPTION
	AH = 00h
	ES:SI -> buffer for "USERS" text string
Return: AX = 4250h ('BP') if installed
	BX = 5120h ('Q ') if installed
	DX = version number (DH = major, DL = minor)
	CX = length of returned string
Program: the G8BPQ AX25 Networking Package is amateur packet radio software by
	  John Wiseman which allows a PC to act as a node in an AX.25 network
SeeAlso: AH=01h"G8BPQ",AH=09h"G8BPQ"
--------N-7F01-------------------------------
INT 7F - Alloy NTNX, MW386 - SEMAPHORE LOCK
	AH = 01h
	DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #2455)
	AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=02h,AH=41h
--------T-7F01-------------------------------
INT 7F - MultiLink Advanced v1.0+ - DEQUEUE SYSTEM RESOURCE
	AH = 01h
	BX = resource identifier
Return: AL = status
	    00h successful
	    02h user error
Note:	the indicated resource may be dequeued even if it was enqueued by
	  another task
SeeAlso: AH=00h"MultiLink",AH=02h"MultiLink"
--------V-7F01-------------------------------
INT 7F - TIGA Communications Driver v2.05 - GET ENTRY POINTS
	AH = 01h
Return: BX = 1234h if installed
	    DX:AX -> array of FAR entry points
	    CH = driver major version
	    CL = driver minor version
Note:	TIGACD 2.05 returns CF set on unrecognized functions in AX
SeeAlso: AX=1234h,AX=4321h
--------N-7F01-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - SET APPLICATION FLAGS AND MASK
	AH = 01h
	AL = stream number (01h-40h)
	CL = new application flags
	    bit 7: monitored frames available via AH=0Bh"G8BPQ"
	DL = new application mask
Program: the G8BPQ AX25 Networking Package is amateur packet radio software by
	  John Wiseman which allows a PC to act as a node in an AX.25 network
Range:	INT 00h to INT FFh, set in configuration file BPQCFG.TXT for v4.03+
	  (earlier versions were hard-wired for INT 7F)
SeeAlso: AH=00h"G8BPQ",AH=02h"G8BPQ",AH=0Bh"G8BPQ"
--------I-7F0104BX0000-----------------------
INT 7F - HLLAPI (IBM 3270 High-Level Language API)/LLAPI (Rabbit Low Level API)
	AX = 0104h (HLLAPI gate ID)
	BX = 0000h
	DS:SI -> parameter control block (see #2456)
Return: parameter control block updated
Note:	the installation check for the Novell HLLAPI TSR is the signature
	  string "CXI" (for the company Novell bought) immediately prior to
	  the interrupt handler
SeeAlso: AX=0105h,AX=ABCDh

Format of HLLAPI parameter control block:
Offset	Size	Description	(Table 2456)
 00h  3 BYTEs	signature = 'PCB'
 03h	BYTE	function number (see #2457,#2458)
 04h	WORD	segment of control string
 06h	WORD	offset of control string
 08h	WORD	length of control string, unless explicit end-of-str char set
 0Ah	BYTE	unused (IBM)
		ControlString[0] (Rabbit)
 0Bh	WORD	return code (see #2460)
 0Dh	WORD	maximum length of control string (IBM)
		unused (Rabbit)

(Table 2457)
Values for HLLAPI function number:
 00h	OEM function (Query system for Attachmate implementation)
 01h	Connect presentation space
 02h	Disconnect presentation space
 03h	Send string of keystrokes as if typed from keyboard
 04h	Wait ~60s, returns status of presentation space
 05h	Copy current presentation space into a user-defined buffer
 06h	Search presentation space for first occurrence of a specified string
 07h	Query cursor location in current presentation space
 08h	Copy part or all of current presentation space into user buffer
 09h	Set session parameters; parameters vary by vendor (see #2459)
 0Ah	Get info on sessions currently connected
 0Bh	Lock current presentation space
 0Ch	Unlock previously locked presentation space
 0Dh	Return copy of operator info area (OIA) of current presentation space
 0Eh	get attribute byte for given position in the current presentation space
 0Fh	copy string of characters to the current presentation space
 10h	workstation control functions
 11h	storage manager functions, intended primarily for BASIC applications
	(not implemented by Rabbit)
 12h	set delay period in half-second intervals
 14h	get info on level of workstation support used
 15h	reset session parameters to default values
 16h	get detailed info on the current session
 17h	start host notification to application on presentation sp or OIA update
 18h	check host update when host notification enabled
 19h	stop host notification
 1Eh	search field within current presentation space for string
 1Fh	get first positionof a selected field in the current presentation space
 20h	get length of specified field
 21h	copy string into a specified field
 22h	copy specified field into a user-defined buffer
 23h	create alternate presentation space (IBM only), don't use with BASIC
 24h	switch to alternate presentation space (IBM only), not with BASIC
 25h	display cursor in specified area (IBM only), don't use with BASIC
 26h	display alternate presentation space (IBM only), don't use with BASIC
 27h	delete alternate presentation space (IBM only), don't use with BASIC
 28h	set cursor
 29h	start Close Intercept
 2Ah	query Close Intercept
 2Bh	stop Close Intercept
 32h	start intercepting keystrokes to allow filtering
 33h	get keystrokes after turning on interception
 34h	notify operator when keystroke rejected by filter subroutine
 35h	stop intercepting keystrokes
 5Ah	send file
 5Bh	receive file
 5Ch	run a program (not implemented by Rabbit)
 5Dh	execute DOS command (not implemented by Rabbit)
 63h	change presentation space position to PC display row/col or vice versa
 65h	connect to Window Services
 66h	disconnect from Window Services
 67h	set/query window coordinates
 68h	set/query window status
 69h	change presentation space name
 78h	connect Structured Fields
 79h	disconnect Structured Fields
 7Ah	query size of communications buffer
 7Bh	allocate communications buffer
 7Ch	free communications buffer
 7Dh	get request completion state
 7Eh	read Structured Fields
 7Fh	write Structured Fields
 FFh	Get info on DCA implementation

(Table 2458)
Values for LLAPI function number:
 80h	initialize LLAPI (internal call)
 83h	set Session ID (one-character ID)
 84h	read Session ID (one-character ID)
 85h	lock 327x keyboard
 86h	unlock 327x keyboard
 87h	wait for Clear to Send
 88h	type ASCII character
 89h	type 327x key
 8Ah	read keyboard lock state
 8Fh	force screen update
 90h	view session
 91h	relinquish (suspend foreground until background becomes idle)
 92h	poke screen character
 93h	poke translated character
 94h	peek screen character
 95h	peek translated character
 96h	set cursor position
 97h	send scan code (Rabbit only)
 98h	synchronize (returns after keystroke queue empty)
 99h	type PC key (Rabbit only)

(Table 2459)
Values for HLLAPI Function 09h Session Parameters:
 ASCII		??? (Rabbit only)
 ATTRIB		return attributes in hex
 NOATTRIB	return attributes as blanks
 CONPHYS	make physical connection
 CONLOG		only make logical connection
 EAB		copy extended attribute bytes along with data
 NOEAB		copy data only
 ESC=n		set escape character to "n" (default '@')
 EOT=n		set end of string character (default 00h)
 FPAUSE		full-duration pause
 FTNOWAIT	return immediately from functions 5Ah and 5Bh (Rabbit only)
 FTWAIT		wait for file transfer to complete (Rabbit only)
 IPAUSE		interruptable pause
 RABESC		??? (Rabbit only)
 NORABESC	??? (Rabbit only)
 SCANCODE	??? (Rabbit only)
 STRLEN		use explicit string lengths
 STREOT		use terminated strings
 SRCHALL	search entire presentation space
 SRCHFROM	search from specified offset
 SRCHFRWD	search forward from position 1
 SRCHBKWD	search backward from last position in presentation space
 TIMEOUT=n	??? (Rabbit only)
 TWAIT		wait specified time for keyboard ready
 LWAIT		wait until keyboard ready
 NWAIT		no wait
 TRON		enable tracing
 TROFF		disable tracing
 AUTORESET	send reset before sending keys with function 03h
 NORESET	don't send reset
 QUIET		don't display messages sent with INT 21/AH=09h
 NOQUIET	allow messages to be displayed
 TIMEOUT=n	set timeout in 30-second intervals, 0 = wait until ^Break
 XLATE		translate extended attribute bytes
 NOXLATE	don't translate
 NEWRET		use HLLAPI v3.0 return code conventions
 OLDRET		use HLLAPI v2.0 return code conventions

(Table 2460)
Values for Windows HLLAPI return code:
 00h	successful
 01h	Presentation Space not connected/requested size unavailable
 02h	invalid function or parameter error/invalid block ID
 03h	file transfer complete
 04h	file transfer complete (segmented)/Presentation Space busy
 05h	inhibited or keyboard locked
 06h	data truncated
 07h	invalid Presentation Space position
 08h	operation not available
 09h	system error
 0Ah	blocking error
 0Bh	resource not available
 0Ch	session stopped
 14h	undefined key combination
 15h	OIA updated
 16h	Presentation Space updated
 17h	both Presentation Space and OIA updated
 18h	no such field
 19h	no keystrokes available
 1Ah	Presentation Space or Operator Information Area changed
 1Bh	file transfer aborted
 1Ch	zero-length field
 1Eh	cursor type invalid
 1Fh	keystroke overflow
 20h	another application is already connected
 22h	message sent to host cancelled
 23h	transmission from host cancelled
 24h	lost contact with host
 25h	function successful
 26h	function incomplete
 27h	a DDM session is already connected
 28h	disconnected, but asynchronous requests still pending
 29h	buffer already in use
 2Ah	no matching request found
12Dh	invalid function number
12Eh	file not found
131h	access denied
134h	out of memory
136h	environment invalid
137h	format invalid
270Eh (9998) invalid Presentation Space ID
270Fh (9999) invalid row or column code
---Windows HLLAPI extensions---
F000h	asynchronous call already in progress
F001h	invalid asynchronous task ID
F002h	blocking call cancelled
F003h	underlying subsystem not started
F004h	unsupported application version
--------V-7F0105-----------------------------
INT 7F - IBM 8514/A Adapter Interface (HDILOAD.EXE)
	AX = 0105h
Return: CF set on error
	CF clear if successful
	    CX:DX -> array of FAR pointers to entry points (see #2461)
Note:	most functions are invoked by pushing the DWORD parameter block pointer
	  and then performing a FAR call via the appropriate vector of the
	  entry point array, placing the FAR address of the function's
	  parameter block on the top of the stack
SeeAlso: AX=0104h,AX=0106h,AX=ABCDh

(Table 2461)
Values for HDILOAD function number: (do FAR call via entry_points+4*function)
 08h	HOPEN	Open Adapter (see #2493)
 09h	HSMX	Set Mix (see #2522)
 10h	HINT	Interrupt (see #2489)
 13h	HLDPAL	Load Palette (see #2490)
 15h	HBBW	BitBLT Write Image Data (see #2476)
 17h	HBBR	BitBLT Read Image Data (see #2477)
 18h	HBBCHN	Chained Data Go (see #2475)
 19h	HBBC	BitBLT Copy Data (see #2474)
 1Dh	HQMODE	Get Current Mode (see #2499)
 20h	HRECT	Fill Rectangle (see #2501)
 22h	HCLOSE	Close Adapter and place in quiescent state (see #2482)
 30h	HINIT	Initialize State (see #2488)
 31h	HSYNC	Synchronize Adapter (see #2527)
 39h	HSPAL	Save Palette (see #2524)
 3Ah	HRPAL	Restore Palette (see #2504)
 ???	HSGQ	Set Graphics Quality (see #2513)
 ???	HSCOORD	Set Coordinate Type (see #2510)
 ???	HESC	Escape, Terminate Processing (see #2487)
 ???	HSBCOL	Set Background Color (see #2505)
 ???	HSBP	Set Bit Plane Controls (see #2506)
 ???	HSCMP	Set Color Comparison Register (see #2508)
 ???	HSCOL	Set Color (see #2509)
 ???	HSHS	Set Scissors (clipping rectangle) (see #2514)
 ???	HXLATE	Assign Text Color (see #2528)
 ???	HQMODES	Get Adapter Modes (see #2500)
 ???	HQDPS	Get Drawing Process State Size (see #2498)
 ???	HQDFPAL	Get Default Palette (see #2497)
 ???	HQCOORD	Get Coordinate Type (see #2495)
 ???	HQCP	Get Current Position (see #2496)
 ???	HSMODE	Change Mode (see #2520)
 ???	HLINE	Draw Line at Given Position (see #2491)
 ???	HCLINE	Draw Line at Current Position (see #2481)
 ???	HRLINE	Draw Line Relative from Given Position (see #2502)
 ???	HCRLINE	Draw Line Relative at Current Position (see #2484)
 ???	HSLT	Set Line Type (see #2517)
 ???	HSLW	Set Line Width (see #2519)
 ???	HSLPC	Save Line Pattern Count (see #2516)
 ???	HRLPC	Restore Line Pattern Count (see #2503)
 ???	HCBBW	BitBLT Write Image Data at Current Position (see #2478)
 ???	HBAR	Begin Area (see #2473)
 ???	HEAR	End Area (see #2485)
 ???	HSPATT	Set Pattern (see #2525)
 ???	HSPATTO	Set Pattern Reference Point (see #2526)
 ???	HEGS	Erase Graphics Screen (see #2486)
 ???	HSCP	Set Current Position (see #2511)
 ???	HMRK	Set Marker (see #2492)
 ???	HCMRK	Set Marker at Current Position (see #2483)
 ???	HSMARK	Set Marker Shape (see #2521)
 ???	HSCS	Set Character Set (see #2512)
 ???	HCHST	Write Character String at Given Position (see #2480)
 ???	HCCHST	Write Character String at Current Position (see #2479)
 ???	HSCELL	Set Cell Size for Alphanumeric Text (see #2507)
 ???	ABLOCKMFI Write Character/Attribute Block MFI (see #2464)
 ???	ABLOCKCGA Write Character Block CGA (see #2462)
 ???	AERASE	Erase Rectangle (see #2467)
 ???	ASCROLL Scroll Rectangle (see #2468)
 ???	ACURSOR	Set Alphanumerics Cursor Position (see #2466)
 ???	ASCUR	Set Alphanumeric Cursor Shape (see #2469)
 ???	ASFONT	Set Font (see #2470)
 ???	AXLATE	Assign Alphanumeric Color (see #2472)

Format of ABLOCKCGA parameter block:
Offset	Size	Description	(Table 2462)
 00h	WORD	000Ah (length of following data)
 02h	WORD	top-left coordinate of character block
 04h	WORD	width of block
 06h	DWORD	-> block of WORDs describing characters (see #2463)
 0Ah	BYTE	length of block in characters
 0Bh	BYTE	highlight attribute
		bit 4: transparent background
		bit 5: overstrike
		bit 6: reverse video
		bit 7: underscore
SeeAlso: #2464

Bitfields for one character in ABLOCKCGA character block:
Bit(s)	Description	(Table 2463)
 3-0	foreground attribute
 7-4	background attribute
 15-8	character code

Format of ABLOCKMFI parameter block:
Offset	Size	Description	(Table 2464)
 00h	WORD	0009h (length of following data)
 02h	WORD	top-left coordinate of character block
 04h	WORD	width of block
 06h	DWORD	-> block of DWORDs describing characters (see #2465)
 0Ah	BYTE	length of block in characters
SeeAlso: #2462

Bitfields for one character in ABLOCKMFI character block:
Bit(s)	Description	(Table 2465)
 7-0	reserved
 9-8	low two bits of font number
 12	transparent background
 13	overstrike
 14	reverse video
 15	underscore
 19-16	foreground color attribute
 23-20	background color attribute
 31-24	character code

Format of ACURSOR parameter block:
Offset	Size	Description	(Table 2466)
 00h	WORD	0002h (length of following data)
 02h	BYTE	column (0-based)
 03h	BYTE	row (0-based)
SeeAlso: #2469

Format of AERASE parameter block:
Offset	Size	Description	(Table 2467)
 00h	WORD	0005h (length of following data)
 02h	BYTE	left-most column (0-based)
 03h	BYTE	top-most row (0-based)
 04h	BYTE	rectangle's width in character cells
 05h	BYTE	rectangle's height in character cells
 06h	BYTE	background color (bits 7-4)
SeeAlso: #2468

Format of ASCROLL parameter block:
Offset	Size	Description	(Table 2468)
 00h	WORD	0006h (length of following data)
 02h	BYTE	left-most column (0-based) of source
 03h	BYTE	top-most row (0-based) of source
 04h	BYTE	rectangle's width in character cells
 05h	BYTE	rectangle's height in character cells
 06h	BYTE	left-most column (0-based) of destination
 07h	BYTE	top-most row (0-based) of destination
SeeAlso: #2467

Format of ASCUR parameter block:
Offset	Size	Description	(Table 2469)
 00h	WORD	0003h (length of following data)
 02h	BYTE	cursor start line (00h = top of cell, FFh = keep current shape)
 03h	BYTE	cursor stop line
 04h	BYTE	cursor attribute
		00h normal
		01h hidden
		02h left-arrow (requires start = 2 and stop = bottom of cell)
		03h right-arrow (requires start = 2 and stop = bottom of cell)
Notes:	no cursor is shown if the start line is greater than the stop line
	the alphanumeric cursor is hidden after each mode change
SeeAlso: #2466,INT 10/AH=01h

Format of ASFONT parameter block:
Offset	Size	Description	(Table 2470)
 00h	WORD	0005h (length of following data)
 02h	BYTE	font number (0-3)
 03h	DWORD	-> character set definition block (see #2471)

Format of 8514/A character set definition block:
Offset	Size	Description	(Table 2471)
 00h	BYTE	reserved
 01h	BYTE	type of character set
		00h bitmapped, 01h&02h reserved, 03h short-stroke font
 02h	BYTE	reserved
 03h	DWORD	reserved
 07h	BYTE	cell width in pixels
 08h	BYTE	cell height in pixels
 09h	BYTE	reserved
 0Ah	WORD	cell size in bytes
 0Ch	WORD	flags
		bit 15: reserved (0)
		bit 14: color bitmap
		bit 13: proportional spacing
 0Eh	DWORD	-> index table
 12h	DWORD	-> character width table
 16h	BYTE	initial code point
 17h	BYTE	final code point
 18h	DWORD	-> character definition table
 1Ch	WORD	reserved
 1Eh	DWORD	-> second character definition table
 22h	WORD	reserved
 24h	DWORD	-> third character definition table

Format of AXLATE parameter block:
Offset	Size	Description	(Table 2472)
 00h	WORD	0080h (length of following data)
 02h 64 BYTEs	character foreground translation table
 42h 64 BYTEs	character background translation table

Format of HBAR parameter block:
Offset	Size	Description	(Table 2473)
 00h	WORD	0000h (no data following)
SeeAlso: #2485

Format of HBBC parameter block:
Offset	Size	Description	(Table 2474)
 00h	WORD	0010h (length of following data)
 02h	WORD	data format
		0000h across-the-plane copy (color expansion)
		0008h through-the-plane copy
 04h	WORD	data rectangle's width
 06h	WORD	data rectangle's height
 08h	BYTE	source bit plane number (across-the-plane copies only)
 09h	BYTE	reserved
 0Ah  2 WORDs	X,Y coordinates of source's upper-left corner in display memory
 0Eh  2 WORDs	X,Y coordinates of destination's upper-left corner in
		  display memory
Note:	copies data from one location in video memory to another
SeeAlso: #2475

Format of HBBCHN parameter block:
Offset	Size	Description	(Table 2475)
 00h	WORD	0006h (length of following data)
 02h	DWORD	-> data buffer in system memory
 06h	WORD	number of bytes to transfer
Note:	this function performs the actual data transfer for a bitBLT set up
	  with HBBR, HBBW, or HCBBW
SeeAlso: #2474,#2476,#2477,#2478

Format of HBBR parameter block:
Offset	Size	Description	(Table 2476)
 00h	WORD	000Ch or 0014h (length of following data)
 02h	WORD	data format
		0000h across-the-plane copy (color expansion)
		0008h through-the-plane copy
 04h	WORD	data rectangle's width
 06h	WORD	data rectangle's height
 08h	BYTE	source bit plane number
 09h	BYTE	reserved
 0Ah  2 WORDs	X,Y coordinates of destination's upper-left corner in
		  display memory
---optional---
 0Eh	WORD	sub-rectangle left margin in pixels
 10h	WORD	sub-rectangle top margin in pixels
 12h	WORD	sub-rectangle width
 14h	WORD	sub-rectangle height
SeeAlso: #2475,#2476,#2478

Format of HBBW parameter block:
Offset	Size	Description	(Table 2477)
 00h	WORD	000Ah or 0012h (length of following data)
 02h	WORD	data format
		0000h across-the-plane copy (color expansion)
		0008h through-the-plane copy
 04h	WORD	data rectangle's width
 06h	WORD	data rectangle's height
 08h  2 WORDs	X,Y coordinates of destination in display memory
---optional---
 0Ch	WORD	sub-rectangle left margin in pixels
 0Eh	WORD	sub-rectangle top margin in pixels
 10h	WORD	sub-rectangle width
 12h	WORD	sub-rectangle height
SeeAlso: #2475,#2477,#2478

Format of HCBBW parameter block:
Offset	Size	Description	(Table 2478)
 00h	WORD	0006h or 000Eh (length of following data)
 02h	WORD	data format
		0000h across-the-plane copy (color expansion)
		0008h through-the-plane copy
 04h	WORD	data rectangle's width
 06h	WORD	data rectangle's height
---optional---
 08h	WORD	sub-rectangle left margin in pixels
 0Ah	WORD	sub-rectangle top margin in pixels
 0Ch	WORD	sub-rectangle width
 0Eh	WORD	sub-rectangle height
SeeAlso: #2475,#2476,#2477

Format of HCCHST parameter block:
Offset	Size	Description	(Table 2479)
 00h	WORD	length of following data
 02h  N BYTEs	ASCII string to display (length given by 'length' field above)
SeeAlso: #2480

Format of HCHST parameter block:
Offset	Size	Description	(Table 2480)
 00h	WORD	length of following data
 02h  2 WORDs	X,Y of left-bottom corner of string on screen
 06h  N BYTEs	ASCII string to display (length given by 'length' field above)
SeeAlso: #2479

Format of HCLINE parameter block:
Offset	Size	Description	(Table 2481)
 00h	WORD	length of following data (multiple of 4)
 02h 2N WORDs	X,Y coordinates for each of N points in polyline
Notes:	the first line segment is drawn beginning at the current position
	on completion, the current position is set to the last point drawn
SeeAlso: #2491,#2502,#2484

Format of HCLOSE parameter block:
Offset	Size	Description	(Table 2482)
 00h	WORD	0001h (length of following data)
 01h	BYTE	(ret) return code
SeeAlso: #2493

Format of HCMRK parameter block:
Offset	Size	Description	(Table 2483)
 00h	WORD	length of following data
 02h 2N WORDs	X,Y of N points
Note:	draws N+1 marker symbols, the first one at the current position
SeeAlso: #2492

Format of HCRLINE parameter block:
Offset	Size	Description	(Table 2484)
 00h	WORD	length of following data (multiple of 4)
 02h 2N WORDs	X,Y coordinates relative to the position of the previous point
		  (current position for first point) for each of N points in
		  polyline
Notes:	the first line segment is drawn beginning at the current position
	on completion, the current position is set to the last point drawn
SeeAlso: #2491,#2481,#2502

Format of HEAR parameter block:
Offset	Size	Description	(Table 2485)
 00h	WORD	0001h (length of following data)
 02h	BYTE	area definition flags
		bits 7-6: End Area type
			00 complete, perform fill
			01 suspend definition
			10 complete, but don't fill
SeeAlso: #2473

Format of HEGS parameter block:
Offset	Size	Description	(Table 2486)
 00h	WORD	0000h (no data following)

Format of HESC parameter block:
Offset	Size	Description	(Table 2487)
 00h	WORD	0000h (no data following)

Format of HINIT parameter block:
Offset	Size	Description	(Table 2488)
 00h	WORD	0002h (length of following data)
 02h	WORD	segment of task buffer
SeeAlso: #2527

Format of HINT parameter block:
Offset	Size	Description	(Table 2489)
 00h	WORD	0004h (length of following data)
 02h	DWORD	interrupt/event identifier
		bit 31: vertical blanking

Format of HLDPAL parameter block:
Offset	Size	Description	(Table 2490)
 00h	WORD	000Ah (length of following data)
 02h	BYTE	palette ID (00h = user, 01h = default)
 03h	BYTE	reserved
 04h	WORD	number of first palette entry
 06h	WORD	number of entries
 08h	DWORD	-> palette entries
SeeAlso: #2524

Format of HLINE parameter block:
Offset	Size	Description	(Table 2491)
 00h	WORD	length of following data (multiple of 4)
 02h 2N WORDs	X,Y coordinates for each of N points in polyline
Note:	on completion, the current position is set to the last point drawn
SeeAlso: #2481,#2502,#2484

Format of HMRK parameter block:
Offset	Size	Description	(Table 2492)
 00h	WORD	length of following data (multiple of 4)
 02h 2N WORDs	X,Y for N points
SeeAlso: #2483

Format of HOPEN parameter block:
Offset	Size	Description	(Table 2493)
 00h	WORD	0003h (length of following data)
 01h	BYTE	initialization flags
		bit 6: don't load default palette
		bit 7: clear bitplanes
 02h	BYTE	mode type (see #2494)
 03h	BYTE	(ret) return code
		bit 7: no adapter (hardware mismatch)
SeeAlso: #2482

(Table 2494)
Values for 8514/A display mode:
 0000h	12x20 characters, 1024x768
 0001h	8x14 characters, 640x480
 0002h	8x14 characters, 1024x768
 0003h	7x15 characters, 1024x768

Format of HQCOORD parameter block:
Offset	Size	Description	(Table 2495)
 00h	WORD	0004h (length of following data)
 02h	BYTE	(ret) coordinate format
		bits 7-4: bytes per coordinate
		bits 3-0: fraction bytes in coordinate
 03h	BYTE	(ret) relative coordinate format
		bits 7-4: bytes per coordinate
		bits 3-0: fraction bytes in coordinate
 04h	BYTE	(ret) number of dimensions (2-4)
 05h	BYTE	(ret) test results
		bit 7: coordinate format not supported
		bit 6: relative coordinate format not supported
		bit 5: specified dimension not supported

Format of HQCP parameter block:
Offset	Size	Description	(Table 2496)
 00h	WORD	0004h (length of following data)
 02h	WORD	(ret) current X position
 04h	WORD	(ret) current Y position

Format of HQDFPAL parameter block:
Offset	Size	Description	(Table 2497)
 00h	WORD	0040h (length of following data)
 02h 16	DWORDs	(ret) color index values
Note:	the default palette is set to match the default EGA/VGA 16-color
	  palettes

Format of HQDPS parameter block:
Offset	Size	Description	(Table 2498)
 00h	WORD	0006h (length of following data)
 02h	WORD	(ret) size of data buffer in bytes
 04h	WORD	(ret) stack size in bytes
 06h	WORD	(ret) size of palette save buffer in bytes

Format of HQMODE parameter block:
Offset	Size	Description	(Table 2499)
 00h	WORD	0012h (length of following data)
 02h	BYTE	current video mode (see #2494)
 03h	WORD	driver version
		bit 6: 80286/8086 CPU
		bit 5: 8 bit planes instead of 4 planes
		bits 4-0: hardware release number
 05h	BYTE	adapter type
		03h 8514/A
		04h XGA
 06h	BYTE	reserved (display type)
 07h	BYTE	character cell width
 08h	BYTE	character cell height
 09h	BYTE	number of bit planes
 0Ah	WORD	screen width (pixels)
 0Ch	WORD	screen height (pixels)
 0Eh	WORD	horizontal resolution (pixels/inch)
 10h	WORD	vertical resolution (pixels/inch)
 12h	BYTE	flag: 00h = monochrome, FFh = color
 13h	BYTE	intensity levels
SeeAlso: #2500

Format of HQMODES parameter block:
Offset	Size	Description	(Table 2500)
 00h	WORD	0021h (length of following data)
 02h	BYTE	(ret) adapter type
 03h 32 BYTEs	(ret) available display modes (FFh byte marks end of data)
SeeAlso: #2499

Format of HRECT parameter block:
Offset	Size	Description	(Table 2501)
 00h	WORD	0008h (legth of following data)
 02h  2 WORDs	X,Y coordinates of top left corner or rectangle
 06h	WORD	rectangle's width
 08h	WORD	rectangle's height
Note:	the rectangle is filled using the current pattern, color, and mix

Format of HRLINE parameter block:
Offset	Size	Description	(Table 2502)
 00h	WORD	length of following data (multiple of 4)
 02h  2 WORDs	X,Y coordinates of starting point
 06h 2N WORDs	X,Y coordinates relative to the position of the previous point
		  for each of N points in polyline
Note:	on completion, the current position is set to the last point drawn
SeeAlso: #2491,#2481,#2484

Format of HRLPC parameter block:
Offset	Size	Description	(Table 2503)
 00h	WORD	0000h (no data following)
Note:	used for continuity of lines crossing scissors boundaries
SeeAlso: #2516

Format of HRPAL parameter block:
Offset	Size	Description	(Table 2504)
 00h	WORD	0300h (length of following data)
 02h 768 BYTEs	buffer containing previously-saved palette table
SeeAlso: #2524

Format of HSBCOL parameter block:
Offset	Size	Description	(Table 2505)
 00h	WORD	0004h (length of following data)
 02h	DWORD	color index for new background color
SeeAlso: #2509

Format of HSBP parameter block:
Offset	Size	Description	(Table 2506)
 00h	WORD	000Ch (length of following data)
 02h	DWORD	bitmask for graphics updates
 06h	DWORD	bitmask for alphanumeric updates
 0Ah	DWORD	display bitmask

Format of HSCELL parameter block:
Offset	Size	Description	(Table 2507)
 00h	

Format of HSCMP parameter block:
Offset	Size	Description	(Table 2508)
 00h	WORD	0005h (length of following data)
 02h	DWORD	comparison color
 06h	BYTE	logical operation
		00h True
		01h pel > testcolor
		02h pel == testcolor
		03h pel < testcolor="" 04h="" false="" 05h="" pel="">= testcolor
		06h pel <> testcolor
		07h pel <= testcolor="" format="" of="" hscol="" parameter="" block:="" offset="" size="" description="" (table="" 2509)="" 00h="" word="" 0004h="" (length="" of="" following="" data)="" 02h="" dword="" color="" index="" for="" new="" foreground="" color="" seealso:="" #2505="" format="" of="" hscoord="" parameter="" block:="" offset="" size="" description="" (table="" 2510)="" 00h="" word="" 0003h="" (length="" of="" following="" data)="" 02h="" byte="" coordinate="" format="" bits="" 7-4:="" bytes="" per="" coordinate="" bits="" 3-0:="" fraction="" bytes="" in="" coordinate="" 03h="" byte="" relative="" coordinates="" format="" bits="" 7-4:="" bytes="" per="" coordinate="" bits="" 3-0:="" fraction="" bytes="" in="" coordinate="" 04h="" byte="" number="" of="" dimensions="" (2-4)="" format="" of="" hscp="" parameter="" block:="" offset="" size="" description="" (table="" 2511)="" 00h="" word="" 0004h="" (length="" of="" following="" data)="" 02h="" 2="" words="" x,y="" or="" coordinate="" for="" new="" current="" position="" format="" of="" hscs="" parameter="" block:="" offset="" size="" description="" (table="" 2512)="" 00h="" word="" 0004h="" (length="" of="" following="" data)="" 02h="" dword="" -=""> character set definition

Format of HSGQ parameter block:
Offset	Size	Description	(Table 2513)
 00h	WORD	0002h (length of following data)
 02h	WORD	quality settings (see #2515)

Format of HSHS parameter block:
Offset	Size	Description	(Table 2514)
 00h	WORD	0008h (length of following data)
 02h	WORD	left edge of clipping rectangle (-2048 to +6143)
 04h	WORD	right edge
 06h	WORD	top edge
 08h	WORD	bottom edget

Bitfields for 8514/A quality settings:
Bit(s)	Description	(Table 2515)
 15	reserved
 14	high precision
 13	reserved
 12-11	pel code
	00 not drawn
	01 drawn
	02 conditional on overpainting/mixes
 10	don't close areas to be filed
 9-0	reserved

Format of HSLPC parameter block:
Offset	Size	Description	(Table 2516)
 00h	WORD	0000h (no data following)
Note:	used for continuity of lines crossing scissors boundaries
SeeAlso: #2503

Format of HSLT parameter block:
Offset	Size	Description	(Table 2517)
 00h	WORD	0006h (length of following data)
 02h	BYTE	line type (see #2518)
 03h	BYTE	reserved
 04h	DWORD	-> user line-type definition (if user type)
SeeAlso: #2519

(Table 2518)
Values for 8514/A line type:
 00h	user line type
 01h	dotted
 02h	short dashes
 03h	dash-dot
 04h	double dotted
 05h	dashed
 06h	dash double dot
 07h	solid
 08h	invisible
SeeAlso: #2517

Format of HSLW parameter block:
Offset	Size	Description	(Table 2519)
 00h	WORD	0001h (length of following data)
 02h	BYTE	width of line in pixels
SeeAlso: #2517

Format of HSMODE parameter block:
Offset	Size	Description	(Table 2520)
 00h	WORD	0001h (length of following data)
 02h	BYTE	new display mode number (see #2494)

Format of HSMRK paramter block:
Offset	Size	Description	(Table 2521)
 00h	WORD	000Eh (length of following data)
 02h	BYTE	cell width
 03h	BYTE	cell height
 04h	BYTE	flags
 05h	BYTE	reserved
 06h	WORD	length of marker symbol
 08h	DWORD	-> image definition data
 0Ch	DWORD	-> color definition data
SeeAlso: #2525

Format of HSMX parameter block:
Offset	Size	Description	(Table 2522)
 00h	WORD	0002h (length of following data)
 02h	BYTE	foreground mix (see #2523)
 03h	BYTE	background mix (see #2523)

(Table 2523)
Values for 8514/A mix:
 00h	retain previous mix
 01h	source OR destination
 02h	source
 04h	source XOR destination
 05h	leave as-is
 06h	max(source,destination)
 07h	min(source,destination)
 08h	source+destination (clipped)
 09h	destination-source (clipped to zero)
 0Ah	source-destination (clipped to zero)
 0Bh	average source and destination
 10h	zero destination
 11h	source AND destination
 12h	source AND NOT destination
 13h	source
 14h	NOT source AND destination
 15h	leave as-is
 16h	source XOR destination
 17h	source OR destination
 18h	NOT source AND NOT destination
 19h	NOT (source XOR destination)
 1Ah	NOT destination
 1Bh	source OR NOT destination
 1Ch	NOT source
 1Dh	NOT source OR destination
 1Eh	NOT source OR NOT destination
 1Fh	set all bits of destination

Format of HSPAL parameter block:
Offset	Size	Description	(Table 2524)
 00h	WORD	0300h (length of following data)
 02h 768 BYTEs	buffer for palette table
SeeAlso: #2490,#2504

Format of HSPATT parameter block:
Offset	Size	Description	(Table 2525)
 00h	WORD	000Eh (length of following data)
 02h	BYTE	cell width
 03h	BYTE	cell height
 04h	BYTE	flags
 05h	BYTE	reserved
 06h	WORD	length of marker symbol
 08h	DWORD	-> image definition data
 0Ch	DWORD	-> color definition data
SeeAlso: #2521,#2526

Format of HSPATTO parameter block:
Offset	Size	Description	(Table 2526)
 00h	WORD	0004h (length of following data)
 02h  2 WORDs	X,Y of pattern reference point (origin)
SeeAlso: #2525

Format of HSYNC parameter block:
Offset	Size	Description	(Table 2527)
 00h	WORD	0002h (length of following data)
 02h	WORD	segment of task state buffer
SeeAlso: #2488

Format of HXLATE parameter block:
Offset	Size	Description	(Table 2528)
 00h	WORD	0020h (length of following data)
 02h 32 BYTEs	color index table
--------V-7F0105-----------------------------
INT 7F - IBM XGA Adapter Interface (XGAAIDOS.SYS)
	AX = 0105h
Return: CF set on error
	CF clear if successful
	    CX:DX -> array of FAR pointers to entry points (see #2461)
Note:	this API is a superset of the 8514/A Adapter Interface
	  (see AX=0105h"HDILOAD")
----------7F0106-----------------------------
INT 7F - HDILOAD Mach32 Adapter Interface - UNINSTALL
	AX = 0106h
Return: AX = 0105h if successfully unloaded
SeeAlso: AX=0105h
--------N-7F02-------------------------------
INT 7F - Alloy NTNX, MW386 - RELEASE SEMAPHORE
	AH = 02h
	DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #2455)
	AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=01h,AH=42h
--------T-7F02-------------------------------
INT 7F - MultiLink Advanced v1.0+ - RELEASE CPU
	AH = 02h
Return: ???
Desc:	yields CPU to other tasks
SeeAlso: AH=00h"MultiLink",AH=09h"MultiLink",INT 15/AX=1000h
--------N-7F02-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - SEND FRAME
	AH = 02h
	AL = stream number (01h-40h)
	CX = length of frame
	ES:SI -> frame to be sent
SeeAlso: AH=00h"G8BPQ",AH=03h"G8BPQ",AH=07h"G8BPQ",AH=0Ah"G8BPQ"
--------f-7F0200-----------------------------
INT 7F - Btrieve Multi-User - GIVE UP TIME???
	AX = 0200h
SeeAlso: INT 2F/AX=AB01h,INT 2F/AX=AB02h,INT 7B"Btrieve"
--------N-7F03-------------------------------
INT 7F - Alloy ANSK, NTNX, MW386 - GET USER NUMBER
	AH = 03h
Return: AL = user number
	AH = machine number (MW386)
Note:	this function call is the recommended method for a CPU-bound process to
	  prevent its priority from being lowered
SeeAlso: AH=04h,AH=05h,AH=A1h
--------N-7F03-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - RECEIVE FRAME
	AH = 03h
	AL = stream number (01h-40h)
	ES:DI -> buffer for frame (must be large enough for a full frame; 350
		  bytes is usually sufficient)
Return:	BX = number of pending frames (0000h if returned frame was last avail)
	CX = length of received frame
SeeAlso: AH=02h"G8BPQ",AH=07h"G8BPQ",AH=0Bh"G8BPQ"
--------N-7F04-------------------------------
INT 7F - Alloy NTNX, MW386 - GET NUMBER OF USERS
	AH = 04h
Return: AL = total number of users on currrent machine (MW386)
	AL = number of slaves on system (NTNX)
SeeAlso: AH=03h
--------N-7F04-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - GET STREAM STATUS
	AH = 04h
	AL = stream number (01h-40h)
Return: CX = state (0000h disconnected, 0001h connected)
	DX = delta state (0000h no change, 0001h changed since last check)
SeeAlso: AH=00h"G8BPQ",AH=02h"G8BPQ",AH=05h"G8BPQ"
--------N-7F05-------------------------------
INT 7F - Alloy NTNX (Host) - LOCK/UNLOCK SYSTEM, SPOOLER CONTROL
	AH = 05h
	AL = function
	    00h lock system (disable slave services)
	    01h unlock system
	    02h enable spooler
	    03h disable spooler
	    04h enable slave timer update
	    05h disable slave timer update
	    06h enable form feeds
	    07h disable form feeds
SeeAlso: INT 17/AH=A4h
--------N-7F05-------------------------------
INT 7F - Alloy NTNX (Slave), MW386 - GET USER PARAMETERS
	AH = 05h
	DX:DI -> buffer for user information record (see #2529)
Notes:	MW386 provides this function for backward compatibility only, and sets
	  many of the fields to zero because they are meaningless under MW386
	this function has no effect when called by the host (user 0)
SeeAlso: AH=03h

Format of Alloy user information record:
Offset	Size	Description	(Table 2529)
 00h	WORD	segment of video RAM
 02h	WORD	segment of secondary copy of video RAM
 04h	WORD	offset of screen update flag (see INT 10/AH=8Bh)
		flag nonzero if update needed
 06h	WORD	video NMI enable port
		(not used by MW386, set to 0000h)
 08h	WORD	video NMI disable port
		(not used by MW386, set to 0000h)
 0Ah	BYTE	processor type
		00h 8088
		01h V20
		02h 8086
		03h V30
		06h 80386
 0Bh	WORD	multitasking flag (00h = single tasking, 01h = multitasking)
		(not used by MW386, set to 0000h)
 0Dh	WORD	offset of terminal driver
		(not used by MW386, set to 0000h)
 0Fh	BYTE	port for console I/O
		(not used by MW386, set to 0000h)
 10h	WORD	offset of processor communication busy flag
		bit 7 set when slave communicating with host
 12h	WORD	pointer to FAR NX system call
		(not used by MW386, set to 0000h)
 14h	WORD	offset of 16-byte user configuration record (see AH=38h)
 16h	WORD	offset of command/status word
 18h	WORD	offset of screen valid flag (see INT 10/AH=93h)
		nonzero if screen must be repainted
 1Ah	WORD	offset of screen repaint flag
 1Ch	WORD	pointer to NEAR NX system call
		(not used by MW386, set to 0000h)
 1Eh	WORD	offset for intercept flags
		(not used by MW386, set to 0000h)
		intercept flag = FFh if MS-DOS intercepts should be disabled
 20h	WORD	offset of terminal lock flag (see INT 10/AH=92h)
		lock flag = FFh if backgrnd screen updates should be suspended
 22h 26 BYTEs	reserved
--------N-7F05-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - ACKNOWLEDGE STREAM STATUS CHANGE
	AH = 05h
	AL = stream number (01h-40h)
Note:	this function must be called in order to receive a report of another
	  status change
SeeAlso: AH=00h"G8BPQ",AH=04h"G8BPQ"
--------N-7F06-------------------------------
INT 7F - Alloy NTNX (Host) - GET SHARED DRIVE INFO
	AH = 06h
	AL = drive number (1=A:, 2=B:, etc)
	ES:DI -> drive info record (see #2530)
Return: AX = status
	    0000h successful
		ES:DI buffer filled
	    0001h not shared drive

Format of Alloy drive info record:
Offset	Size	Description	(Table 2530)
 00h	WORD	segment of drive IO-REQUEST structure (MS-DOS DPB)
 02h	WORD	segment of allocation map (owner table)
		one byte per FAT entry, containing user ID owning that entry
 04h	WORD	segment of master FAT for drive (copy of FAT on disk)
 06h	WORD	pointer to configuration file
 08h	WORD	total number of clusters
 0Ah	WORD	bytes per sector
 0Ch	WORD	sectors per cluster
 0Eh	BYTE	FAT type (0Ch = 12-bit, 10h = 16-bit)
--------N-7F06-------------------------------
INT 7F - Alloy NTNX (Slave) - ALLOCATE FREE CLUSTER ON SHARED DRIVE
	AH = 06h
	DL = drive number (1=A:,2=B:,etc)
	CX = number of clusters to allocate
Return: AH = status
	    00h successful
		CX = number of clusters still free
	    10h invalid shared drive request
		CL = first and second shared drives
	    11h invalid cluster count (must be 01h-FFh)
--------N-7F06-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - SESSION CONTROL
	AH = 06h
	AL = stream number (01h-40h)
	CX = subfunction
	    0000h connect to node
		DL bit 0: use BBS callsign instead of Node Call
	    0001h connect to node
		use BBS Call if APPLMASK=1
	    0002h disconnect
	    0003h return user to node
SeeAlso: AH=01h"G8BPQ",AH=04h"G8BPQ"
--------N-7F07-------------------------------
INT 7F - Alloy NTNX, MW386 - GET LIST OF SHARED DRIVES
	AH = 07h
Return: ES:DI -> shared drive list (see #2531)
Note:	MW386 considers all fixed disks to be shared drives; only C and D will
	  be returned as shared

Format of Alloy shared drive list:
Offset	Size	Description	(Table 2531)
 00h	BYTE	string length
 01h	BYTE	number of shared drives
 02h  N BYTEs	one byte per shared drive
--------N-7F07-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - GET BUFFER COUNTS FOR STREAM
	AH = 07h
	AL = stream number (01h-40h)
Return: BX = number of pending receive frames
	CX = number of unacknowledged sent frames
	DX = number of buffers available
SeeAlso: AH=02h"G8BPQ",AH=03h"G8BPQ"
--------N-7F08-------------------------------
INT 7F - Alloy NTNX (Host) - GET INTERRUPT VECTORS
	AH = 08h
	CL = function
	    00h get original interrupt vector
		 01h get Network Executive interrrupt
	AL = interrupt number
	DX:SI -> DWORD to hold interrupt vector
Return: AL = status
	    00h successful
	    01h interrupt vector not used by network executive
	    02h invalid subfunction
Note:	the network executive uses interrupts 02h,08h,09h,0Fh,10h,13h,16h-19h,
	  1Ch,20h,28h,2Ah,2Fh,5Bh,67h,7Fh,ECh, and F0h-FFh
SeeAlso: AH=09h/CL=03h,INT 21/AH=35h
--------N-7F08--CL02-------------------------
INT 7F - Alloy NTNX - SET MESSAGE DISPLAY TIMEOUT
	AH = 08h
	CL = 02h
	DX = timeout in seconds
Return: AL = status
	    00h successful
	    02h invalid subfunction
--------N-7F08-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - PORT CONTROL/INFORMATION
	AH = 08h
	AL = stream number (01h-40h)
Return: ES:DI -> 10-byte buffer containing blank-padded callsign
	---v4.05+ ---
	AL = radio port to which channel is connected (level 2)
	AH = session type (see #2532)
	BX = L2 paclen for session
	CX = maximum frame size
	DX = L4 window size or 0000h if not L4 circuit
Program: the G8BPQ AX25 Networking Package is amateur packet radio software by
	  John Wiseman which allows a PC to act as a node in an AX.25 network
SeeAlso: AH=01h"G8BPQ",AH=02h"G8BPQ",AH=03h"G8BPQ",AH=0Ah"G8BPQ"

Bitfields for G8BPQ session type:
Bit(s)	Description	(Table 2532)
 0	L2LINK
 1	SESSION
 2	UPLINK
 3	DOWNLIND
 5	BPQHOST
--------T-7F09-------------------------------
INT 7F - MultiLink Advanced v1.0+ - SET TASK PRIORITY
	AH = 09h
	AL = priority (0-7)
Note:	the installation check consists of ensuring that the interrupt vector
	  is not pointing at segment 0000h, then checking whether the byte
	  at offset 0000h in the interrupt handler's segment is E9h
Index:	installation check;MultiLink Advanced
SeeAlso: AH=00h"MultiLink",AH=0Ah"MultiLink"
--------N-7F09-------------------------------
INT 7F - G8BPQ - proposed addition - GET NODE/APPLICATION CALLSIGN AND ALIAS
	AH = 09h
	AL = application
	    00h node
	    01h BBS
	    02h HOST
	    03h SYSOP
	BL = what to get (00h callsign, 01h application name)
	ES:SI -> buffer for callsign/name string
Return: CX = length of returned string
SeeAlso: AH=00h"G8BPQ",AH=01h"G8BPQ",AH=0Ch"G8BPQ"
--------N-7F09-------------------------------
INT 7F - Alloy NTNX - ENABLE/DISABLE MUD FILE CHECKING
	AH = 09h
	CL = function
	    00h enable checking of RTNX.MUD file
	    01h disable RTNX.MUD checking
--------N-7F09--CL02-------------------------
INT 7F - Alloy NTNX - SWITCH HOST TO DEDICATED MODE
	AH = 09h
	CL = 02h
Note:	in dedicated mode, the host will only poll for I/O requests from the
	  slave processors, and not provide workstation services
--------N-7F09--CL03-------------------------
INT 7F - Alloy NTNX,MW386 - GET ALTERNATE INTERRUPT
	AH = 09h
	CL = 03h
	AL = default interrupt number (67h,7Fh,etc)
Return: CL = actual interrupt which handles specified interrupt's calls
SeeAlso: AH=08h
--------N-7F0A--CL00-------------------------
INT 7F - Alloy NTNX - GET SYSTEM FLAGS
	AH = 0Ah
	CL = 00h
	ES:DI -> buffer for system flags (see #2533)
Return: ES:DI buffer filled
Notes:	on a slave, only the NX_Busy flag is returned
	all three flags are at fixed positions, so this function only needs to
	  be called once
	an interrupt handler should only perform DOS or device accesses when
	  all three flags are 00h

Format of Alloy system flags:
Offset	Size	Description	(Table 2533)
 00h	DWORD	pointer to NX_Busy flag (nonzero when communicating with users)
 04h	DWORD	pointer to device driver busy flag
 08h	DWORD	pointer to InTimer flag
--------N-7F0A-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - TRANSMIT RAW (KISS) FRAME
	AH = 0Ah
	AL = radio port
	ES:SI -> buffer containing data to be sent
	CX = number of bytes to send
SeeAlso: AH=02h"G8BPQ",AH=08h"G8BPQ",AH=0Bh"G8BPQ"
--------T-7F0A-------------------------------
INT 7F - MultiLink Advanced v1.0+ - SET KEYBOARD TEST STATUS
	AH = 0Ah
	AL = task-switch status
	    00h normal (disable task when it repeatedly polls keyboard)
	    01h disable task until keyboard input available
	    FFh never disable task
Return: ???
SeeAlso: AH=09h"MultiLink"
--------N-7F0B--CL02-------------------------
INT 7F - Alloy NTNX (Host) - SET/RESET GRAPHICS DOS ON SLAVE
	AH = 0Bh
	CL = 02h
	AL = slave ID number
	CH = DOS to activate
	    00h graphics DOS
	    01h character DOS
Return: AL = status
	    00h successful
	    01h nothing done, proper DOS type already loaded
--------N-7F0B-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - RECEIVE TRACE (RAW DATA) FRAME
	AH = 0Bh
	ES:DI -> buffer for received data (see #2534)
Return: CX = number of bytes received
Note:	the specified buffer must be large enough to receive a full frame
SeeAlso: AH=03h"G8BPQ",AH=08h"G8BPQ",AH=0Ah"G8BPQ"

Format of G8BPQ received data:
Offset	Size	Description	(Table 2534)
 00h	WORD	internal control information
 02h	BYTE	port number (bit 7 set if transmitted frame)
 03h	WORD	frame length including this header
 05h	var	user data
--------N-7F0C-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - UPDATE SWITCH INFORMATION
	AH = 0Ch
	DX = function
	    0001h update beacon text
		CX = length of data
		ES:SI -> data to be sent in beacons
	    0002h (v4.07+) initiate NODES broadcast
SeeAlso: AH=09h"G8BPQ"
--------N-7F0D00-----------------------------
INT 7F - G8BPQ v4.07+ - HOST MODE - GET AVAILABLE STREAM
	AX = 0D00h
Return: AL = first available stream number, or FFh if none free
SeeAlso: AH=00h"G8BPQ",AH=0Dh
--------N-7F0D-------------------------------
INT 7F - G8BPQ v4.07+ - HOST MODE - ALLOCATE/DEALLOCATE STREAM
	AH = 0Dh
	AL = stream number (01h-FFh)
	CL = function
	    01h allocate stream
		Return: CX = status (0000h successful, else already in use)
	    02h deallocate stream
SeeAlso: AX=0D00h
--------N-7F0F-------------------------------
INT 7F - G8BPQ v4.00+ - HOST MODE - GET TIME MARKER
	AH = 0Fh
Return: AX = time marker (clock ticks modulo 64K)
Program: the G8BPQ AX25 Networking Package is amateur packet radio software by
	  John Wiseman which allows a PC to act as a node in an AX.25 network
SeeAlso: AH=01h"G8BPQ",AX=0D00h,INT 1A/AH=00h
--------N-7F10--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - OPEN CHANNEL
	AH = 10h
	CL = 00h
	AL = channel number
	DX:DI -> channel buffer
Return: AL = status (00h-03h,0Dh) (see #2535)
Note:	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=01h,AH=10h/CL=04h,AH=14h/CL=02h

(Table 2535)
Values for Alloy function status:
 00h	successful
 01h	busy
 02h	channel range error (not 00h-3Fh)
 03h	invalid subfunction
 0Ah	channel not open
 0Ch	channel already locked
 0Dh	unable to open
--------N-7F10--CL01-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - CLOSE CHANNEL
	AH = 10h
	CL = 01h
	AL = channel number
Return: AL = status (00h-03h,0Ah) (see #2535)
Note:	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=00h,AH=10h/CL=05h
--------N-7F10--CL02-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK CHANNEL
	AH = 10h
	CL = 02h
	AL = channel number
Return: AL = status (00h-03h,0Ah,0Ch) (see #2535)
Note:	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=03h,AH=10h/CL=06h,AH=10h/CL=08h
--------N-7F10--CL03-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK CHANNEL
	AH = 10h
	CL = 03h
	AL = channel number
Return: AL = status (00h-03h,0Ah) (see #2535)
Notes:	should only be used on channels locked with AH=10h/CL=02h, not on those
	  locked by receipt of a datagram
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=04h,AH=10h/CL=09h
--------N-7F10--CL04-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - RELEASE BUFFER
	AH = 10h
	CL = 04h
	AL = channel number
Return: AL = status (00h-03h) (see #2535)
Notes:	unlocks buffer after received datagram has been processed
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=00h
--------N-7F10--CL05-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - CLOSE ALL CHANNELS
	AH = 10h
	CL = 05h
Return: AL = status (00h-03h) (see #2535)
Notes:	clears all pending datagrams and clears buffer pointers before closing
	  the channels
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=01h
--------N-7F10--CL06-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK ALL OPEN CHANNELS
	AH = 10h
	CL = 06h
Return: AL = status (00h-03h) (see #2535)
Note:	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=08h
--------N-7F10--CL07-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK ALL LOCKED IDLE CHANNELS
	AH = 10h
	CL = 07h
Return: AL = status (00h-03h) (see #2535)
Notes:	unlocks all locked channels which have no pending datagrams
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=03h,AH=10h/CL=09h
--------N-7F10--CL08-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK MULTIPLE CHANNELS
	AH = 10h
	CL = 08h
	DX = maximum channel number to lock
Return: AL = status (00h-03h) (see #2535)
Notes:	locks channels numbered 00h through the value in DX
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=06h,AH=10h/CL=09h
--------N-7F10--CL09-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK MULTIPLE CHANNELS
	AH = 10h
	CL = 09h
	DX = maximum channel number to unlock
Return: AL = status (00h-03h) (see #2535)
Notes:	unlocks channels numbered 00h through the value in DX
	may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=03h,AH=10h/CL=07h,AH=10h/CL=08h
--------N-7F11-------------------------------
INT 7F - Alloy NTNX, MW386 - SEND DATAGRAM
	AH = 11h
	DX:SI -> request block (see #2537)
Return: AL = status (see #2536)
Note:	if wildcard channel FFh used, actual channel number will be filled in
SeeAlso: AH=12h

(Table 2536)
Values for Alloy function status:
 00h	successful
 01h	busy
 02h	channel range error (not 00h-3Fh)
 03h	invalid subfunction
 0Ah	packet too large (or <2 bytes="" if="" ntnx)="" 0bh="" can't="" send="" packet="" to="" itself="" 0ch="" invalid="" number="" of="" destinations="" 0dh="" destination="" channel="" number="" out="" of="" range="" 0eh="" destination="" user="" is="" busy="" 0fh="" destination="" user="" has="" locked="" channel="" 10h="" channel="" not="" open="" 11h="" no="" datagram="" server="" on="" destination="" (ntnx)="" format="" of="" alloy="" request="" block:="" offset="" size="" description="" (table="" 2537)="" 00h="" dword="" pointer="" to="" packet="" to="" send="" 04h="" word="" packet="" size="" in="" bytes="" (1-4096)="" 06h="" byte="" number="" of="" destinations="" for="" packet="" (max="" 1fh)="" 07h="" 31="" bytes="" destination="" user="" ids="" (ffh="broadcast" to="" all="" except="" sender)="" 26h="" 31="" bytes="" destination="" channels="" (ffh="first" available="" channel)="" 45h="" 31="" bytes="" return="" destination="" statuses="" --------n-7f12-------------------------------="" int="" 7f="" -="" alloy="" ntnx,="" mw386="" -="" acknowledge="" datagram="" ah="12h" al="channel" number="" being="" acknowledged="" di:dx="32-bit" status="" to="" return="" to="" sender="" return:="" al="status" (see="" #2538)="" note:="" also="" unlocks="" the="" channel,="" allowing="" the="" next="" datagram="" to="" be="" received="" seealso:="" ah="11h,AH=15h/CL=04h" (table="" 2538)="" values="" for="" alloy="" function="" status:="" 00h="" successful="" 01h="" busy="" 02h="" channel="" range="" error="" (not="" 00h-3fh)="" 03h="" invalid="" subfunction="" 0ah="" channel="" not="" open="" 0bh="" no="" message="" in="" channel="" 0ch="" destination="" slave="" busy--retry="" (ntnx)="" 0dh="" destination="" user="" not="" active="" 0eh="" destination="" slave="" not="" active="" (ntnx)="" 0fh="" destination="" disabled="" datagram="" service="" --------v-7f1234-----------------------------="" int="" 7f="" -="" tiga="" communications="" driver="" v2.05="" -="" uninstall="" ax="1234h" seealso:="" ax="4321h" --------n-7f13--cl00-------------------------="" int="" 7f="" -="" alloy="" ntnx,="" mw386="" -="" reset="" user="" datagrams="" ah="13h" cl="00h" note:="" clears="" all="" pending="" datagrams="" and="" removes="" all="" channels="" opened="" in="" ntnx="" compatibility="" mode="" --------n-7f14--cl00-------------------------="" int="" 7f="" -="" alloy="" ntnx,="" mw386="" -="" set="" receive="" isr="" ah="14h" cl="00h" dx:di="" -=""> application FAR receive service routine (see #2539)
Return: AL = status (00h-03h) (see #2538)
SeeAlso: AH=14h/CL=01h,AH=14h/CL=03h

(Table 2539)
Values Alloy receive service routine is called with:
	DH = sender ID
	DL = channel with datagram
	interrupts disabled
Return: AL = response code
	    00h leave buffer locked, set channel status, and repeat call later
	    01h release channel buffer
	    02h change buffer pointer to DX:DI
	AH,CX,DX,DI,SI may be destroyed
--------N-7F14--CL01-------------------------
INT 7F - Alloy NTNX, MW386 - SET ACKNOWLEDGE ISR
	AH = 14h
	CL = 01h
	DX:DI -> application FAR acknowledge service routine (see #2540)
Return: AL = status (00h-03h) (see #2538)
Note:	the service routine will be called as soon as an acknowledgment arrives
SeeAlso: AH=12h,AH=14h/CL=00h,AH=14h/CL=04h,AH=15h/CL=04h

(Table 2540)
Values Alloy acknowledge service routine is called with:
	DS:SI -> acknowledge structure (see #2544)
Return: AL = response code
	    00h application busy, network executive should call again later
	    01h acknowledge accepted
	AH,DX,SI may be destroyed
--------N-7F14--CL02-------------------------
INT 7F - Alloy NTNX, MW386 - SET CHANNEL BUFFER POINTER
	AH = 14h
	CL = 02h
	AL = channel number
	DX:DI -> receive buffer
Return: AL = status (00h-03h) (see #2538)
Note:	may be called from within a receive ISR or when a datagram is pending
SeeAlso: AH=10h/CL=00h,AH=14h/CL=00h
--------N-7F14--CL03-------------------------
INT 7F - Alloy NTNX, MW386 - GET RECEIVE ISR
	AH = 14h
	CL = 03h
Return: DX:DI -> current receive ISR
SeeAlso: AH=14h/CL=00h,AH=14h/CL=04h
--------N-7F14--CL04-------------------------
INT 7F - Alloy NTNX, MW386 - GET ACKNOWLEDGE ISR
	AH = 14h
	CL = 04h
Return: DX:DI -> current acknowledge ISR
SeeAlso: AH=14h/CL=01h,AH=14h/CL=03h
--------N-7F14--CL05-------------------------
INT 7F - Alloy NTNX (Host), MW386 - GET BUSY POINTER
	AH = 14h
	CL = 05h
	DX:DI -> buffer for busy structure (see #2541)
Return: DX:DI buffer filled

Format of Alloy busy structure:
Offset	Size	Description	(Table 2541)
 00h	DWORD	pointer to busy flag byte
 04h	WORD	fixed port address (FF00h)
--------N-7F15--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - GET CHANNEL STATUS
	AH = 15h
	CL = 00h
	AL = channel number
	DX:DI -> status structure (see #2542)
Return: AL = status (00h-03h) (see #2538)
SeeAlso: AH=15h/CL=01h

Format of Alloy channel status structure:
Offset	Size	Description	(Table 2542)
 00h	BYTE	channel status
		bit 0: channel open
		bit 1: channel buffer contains received data
		bit 7: channel locked
 01h	BYTE	sender ID
--------N-7F15--CL01-------------------------
INT 7F - Alloy NTNX, MW386 - GET NEXT FULL CHANNEL
	AH = 15h
	CL = 01h
	DX:DI -> full-channel structure (see #2543)
Return: AL = status
		 00h successful
	    01h busy
	    0Ah no datagrams available
Note:	MW386 v1.0 returns the lowest channel with a datagram; newer versions
	  and NTNX return the oldest datagram
SeeAlso: AH=15h/CL=00h

Format of Alloy full-channel structure:
Offset	Size	Description	(Table 2543)
 00h	BYTE	number of channel with oldest datagram
 01h	BYTE	sender ID
--------N-7F15--CL02-------------------------
INT 7F - Alloy NTNX, MW386 - GET MAXIMUM NUMBER OF CHANNELS
	AH = 15h
	CL = 02h
Return: AH = number of channels available (40h for MW386)
Note:	the application may always assume at least 32 channels available
SeeAlso: AH=15h/CL=03h
--------N-7F15--CL03-------------------------
INT 7F - Alloy NTNX, MW386 - GET MAXIMUM PACKET SIZE
	AH = 15h
	CL = 03h
	DX:DI -> WORD for return value
Return: buffer WORD filled with maximum packet size (4096 for MW386)
SeeAlso: AH=15h/CL=02h
--------N-7F15--CL04-------------------------
INT 7F - Alloy NTNX, MW386 - GET AND CLEAR ACKNOWLEDGE STATUS
	AH = 15h
	CL = 04h
	DX:DI -> status structure (see #2544)
Return: AL = status
	    00h successful
		DX:DI structure filled
	    01h busy
	    0Ah no acknowledgement has arrived
SeeAlso: AH=12h,AH=14h/CL=01h

Format of Alloy status structure:
Offset	Size	Description	(Table 2544)
 00h	BYTE	sender ID
 01h	BYTE	channel number
 02h  4 BYTEs	receiver status (see #2538)
--------N-7F16-------------------------------
INT 7F - Alloy NTNX, MW386 - DIRECT MEMORY TRANSFER
	AH = 16h
	DX:SI -> transfer structure (see #2545)
Return: AL = status
	    00h successful
	    0Ah source or destination out of range
	    0Bh transfer kernal busy--try again
Notes:	this call transfers memory contents directly between users; both source
	  and destination user IDs may differ from the caller's ID
	no segment wrap is allowed

Format of Alloy transfer structure:
Offset	Size	Description	(Table 2545)
 00h	WORD	bytes to transfer
 02h	BYTE	source ID
		FEh = caller
 03h	DWORD	source address
 07h	BYTE	destination ID
		FFh = all slaves except caller
		FEh = caller
 08h	DWORD	destination address
--------N-7F21-------------------------------
INT 7F - Alloy NTNX, MW386 - SEND MESSAGE OR COMMAND TO USER(S)
	AH = 21h
	AL = sender's user ID
	DS:DX -> control packet (see #2546)
Note:	messages or commands are ignored if disabled by the destination user
SeeAlso: AH=22h

Format of Alloy control packet:
Offset	Size	Description	(Table 2546)
 00h	BYTE	packet type
		00h message
		01h NTNX command
		02h MW386 command
 01h	BYTE	destination user ID or 'A' for all users
 02h 62 BYTEs	ASCIZ message (packet type 00h)
		BIOS keycodes terminated by NUL byte (type 01h) or word (02h)
Note:	a maximum of 16 keycodes will be processed for NTNX and MW386 commands
--------N-7F22-------------------------------
INT 7F - Alloy NTNX - GET MESSAGE
	AH = 22h
Return: pending messages displayed on user's screen
SeeAlso: AH=21h
--------N-7F24-------------------------------
INT 7F - Alloy NTNX, MW386 - ATTACH OR RELEASE DRIVE FOR LOW-LEVEL WRITE ACCESS
	AH = 24h
	CL = function
	    00h attach
		 01h release
	CH = drive (0=A:,1=B:,etc)
Return: AX = status (see #2547)
Note:	only drives on the current machine may be attached

(Table 2547)
Values for Alloy function status:
 00h	successful
 01h	invalid request
 02h	already attached
 03h	not attached
 04h	lock table full
--------N-7F24-------------------------------
INT 7F - Alloy NTNX - ATTACH/RELEASE HOST PROCESSOR
	AH = 24h
	CL = function
	    02h attach host
	    03h release host
Return: AX = status (see #2547)
Note:	the host processor may be attached in order to perform I/O via the host
--------N-7F25--CL00-------------------------
INT 7F - Alloy ANSK, NTNX, MW386 - GET NETWORK EXECUTIVE VERSION
	AH = 25h
	CL = 00h
Return: AH = version suffix letter
	CH = major version number
	CL = minor version number
SeeAlso: AH=25h/CL=01h
--------N-7F25--CL01-------------------------
INT 7F - Alloy ANSK, NTNX, MW386 - GET NETWORK EXECUTIVE TYPE
	AH = 25h
	CL = 01h
Return: CL = executive type (see #2548)
SeeAlso: AH=25h/CL=00h

(Table 2548)
Values for Alloy network executive type:
 00h	RTNX
 01h	ATNX
 02h	NTNX
 03h	BTNX
 04h	MW386
 05h	ANSK
----------7F2525-----------------------------
INT 7F - TIGA Communications Driver v2.05 - ???
	AX = 2525h
	BX = ???
Return: ???
SeeAlso: AX=4321h,AX=5555h
--------N-7F26--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - GET NTNX FILE MODE
	AH = 26h
	CL = 00h
Return: AX = file mode bits (see #2549)
Note:	MW386 does not support file modes, and always returns AX=001Fh
SeeAlso: AH=26h,AH=26h/CL=06h

Bitfields for Alloy file mode bits:
Bit(s)	Description	(Table 2549)
 0	directory protection enabled
 1	extended open enabled
 2	flush on every disk write
 3	flush on every disk write in locked interval
 4	flush on reads from simultaneously opened file
--------N-7F26-------------------------------
INT 7F - Alloy NTNX - SET FILE I/O CHECKING LEVEL
	AH = 26h
	CL = check type to set/reset
	    01h directory protection
		 02h extended open
	    03h flush on every disk write
	    04h flush on disk write if any lock set during write
	    05h flush on all reads if file written
	AL = new state (00h off, 01h on)
SeeAlso: AH=26h/CL=00h,AH=26h/CL=06h
--------N-7F26--CL06-------------------------
INT 7F - Alloy NTNX - CANCEL FLUSH ON WRITE
	AH = 26h
	CL = 06h
Note:	cancels flags set by AH=26h/CL=03h and AH=26h/CL=04h
SeeAlso: AH=26h/CL=00h
--------N-7F30-------------------------------
INT 7F - Alloy MW386 - GET PORT INFORMATION
	AH = 30h
	CX = MW386 port number
Return: AL = result
	    FFh if port not found
	    else driver unit number
		BL = port mode
		BH = port type
		    02h remote
		DH = owner's machine ID
		DL = owner's user ID
SeeAlso: INT 17/AH=8Bh
--------N-7F31-------------------------------
INT 7F - Alloy MW386 v1.x only - CHECK PORT ASSIGNMENT
	AH = 31h
	???
Return: ???
--------N-7F37-------------------------------
INT 7F - Alloy NTNX (Host) - GET SEMAPHORE TABLE
	AH = 37h
Return: ES:AX -> semaphore table
--------N-7F37-------------------------------
INT 7F - Alloy ANSK, NTNX (Slave) - DUMP STRING TO TERMINAL
	AH = 37h
	DS:DX -> ASCIZ string to display
Note:	if the string is empty, a terminal update will be forced
--------N-7F38-------------------------------
INT 7F - Alloy NTNX (Slave), MW386 - SET NEW TERMINAL DRIVER
	AH = 38h
	AL = new terminal driver number
	    FFh dummy driver
	    FEh current driver
	    FDh load new driver
		DS:SI -> new driver
SeeAlso: AH=39h
--------N-7F39-------------------------------
INT 7F - Alloy MW386 - SET TERMINAL DRIVER FOR ANOTHER USER
	AH = 39h
	AL = new terminal driver number
	    FFh dummy driver
	    FEh current driver
	    FDh load new driver
		DS:SI -> new driver
	DL = user number (FFh = caller)
	DH = machine number if DL <> FFh
Return: CF set if invalid user number
	CF clear if successful
Notes:	only available to supervisors
	the new driver number will not take effect until the user is rebooted
SeeAlso: AH=38h
--------N-7F3A-------------------------------
INT 7F - Alloy MW386 - GET TERMINAL PARAMETERS
	AH = 3Ah
	DL = user number (FFh = caller)
	DH = machine number
Return: CF clear if successful
		 AH = terminal driver number
	    AL = baud rate (00h = 38400, 01h = 19200, etc)
	    CL = parity (00h none, 01h even, 02h odd)
	    CH = handshaking (00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC)
	CF set if invalid user number
SeeAlso: AH=3Bh
--------N-7F3B-------------------------------
INT 7F - Alloy MW386 - SET TERMINAL PARAMETERS
	AH = 3Bh
	AL = baud rate (00h = 38400, 01h = 19200, etc)
	CL = parity (00h none, 01h even, 02h odd)
	CH = handshaking (00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC)
	DL = user number (FFh = caller)
	DH = machine number for user
Return: CF set if invalid user number
Notes:	only available to supervisors
	the new parameters will take effect immediately if the user's terminal
	  has not been started, else AH=3Dh must be called to post the changes
SeeAlso: AH=3Ah,AH=3Dh
--------N-7F3C-------------------------------
INT 7F - Alloy MW386 - ENABLE/DISABLE AUTOBAUD DETECT
	AH = 3Ch
	AL = new state (00h disabled, 01h enabled)
	DL = user number (FFh = caller)
	DH = machine number for user
Return: CF set if invalid user number
Note:	only available to supervisors
SeeAlso: AH=3Dh
--------N-7F3D-------------------------------
INT 7F - Alloy MW386 - POST TERMINAL CONFIGURATION CHANGES
	AH = 3Dh
Note:	should be called whenever a program changes the terminal type or its
	  parameters
SeeAlso: AH=3Bh
--------N-7F41-------------------------------
INT 7F - Alloy NTNX - LOCK FILE FOR USER
	AH = 41h
	AL = user ID
	DS:DX -> ASCIZ filename
Return: AL = status (see #2550)
Note:	requests exclusive read/write access to file
SeeAlso: AH=00h,AH=41h"MW386",AH=42h"NTNX"

(Table 2550)
Values for Alloy function status:
 00h	successful
 01h	invalid function
 02h	already locked
 03h	unable to lock
 04h	lock table full or semaphore space exhausted
--------N-7F41-------------------------------
INT 7F - Alloy MW386 - LOCK SEMAPHORE FOR USER
	AH = 41h
	AL = user ID
	DS:DX -> ASCIZ semaphore name
Return: AL = status (see #2550)
SeeAlso: AH=00h,AH=42h"MW386"
--------s-7F4150BHC1-------------------------
INT 7F U - Voyetra - AAPISG - API
	AX = 4150h ('AP')
	BH = C1h
	BL = function (00h-13h)
	    00h initialize (fails except first time called)
	???
Return: AX = status???
	    0000h successful	
	    0001h failed
Program: AAPISG is a driver by Voyetra for the Aztech Sound Galaxy sound board
BUG:	the function range check uses JL instead of JB, so it will cause a
	  crash if BL >= 80h on entry
SeeAlso: AX=4331h,AX=564Dh,AX=5658h
--------N-7F42-------------------------------
INT 7F - Alloy NTNX - UNLOCK FILE FOR USER
	AH = 42h
	AL = user ID
	DS:DX -> ASCIZ filename
Return: AL = status (see #2550)
SeeAlso: AH=00h,AH=41h"NTNX",AH=42h"MW386"
--------N-7F42-------------------------------
INT 7F - Alloy MW386 - UNLOCK SEMAPHORE FOR USER
	AH = 42h
	AL = user ID
	DS:DX -> ASCIZ semaphore name
Return: AL = status
	    00h successful
	    01h invalid function
	    03h unable to unlock semaphore
SeeAlso: AH=02h,AH=41h"MW386",AH=42h"NTNX"
----------7F4321-----------------------------
INT 7F - TIGA Communications Driver v2.05 - INSTALLATION CHECK
	AX = 4321h
Return: AX = 0000h if installed
Note:	INT 7F is the default, but may be overridden
SeeAlso: AH=01h"TIGA",AX=1234h,AX=2525h,AX=4321h,AX=5555h
--------s-7F4331BHC1-------------------------
INT 7F U - Voyetra - VAPISG - API
	AX = 4331h ('C1')
	BH = C1h
	BL = function (00h-7Ah)
	???
Return: ???
Program: VAPISG is a MIDI driver by Voyetra for the Aztech Sound Galaxy
	  sound board
SeeAlso: AX=4150h,AX=564Dh,AX=5658h
--------N-7F4E-------------------------------
INT 7F - Alloy MW386 v2+ - SET ERROR MODE
	AH = 4Eh
	AL = error mode flags
	    bit 0: display critical disk errors
	    bit 1: display sharing errors
	DX = 4E58h ("NX")
Return: AL = status
	    00h successful
SeeAlso: AH=4Fh
--------N-7F4F-------------------------------
INT 7F - Alloy MW386 v2+ - SET FCB MODE
	AH = 4Fh
	AL = FCB mode
	    02h read/write compatibility
	    42h read/write shared
	DX = 4E58h ("NX")
Return: AL = status
	    00h successful
--------V-7F5555-----------------------------
INT 7F - TIGA Communications Driver v2.05 - ???
	AX = 5555h
	BX = ???
Return: ???
SeeAlso: AX=4321h
--------s-7F564DBHC1-------------------------
INT 7F U - Voyetra Multimedia Player - VMP.EXE API
	AX = 564Dh ('VM')
	BH = C1h
	BL = function (00h-1Bh)
	    00h ???
		Return: CF clear
			AX = 0000h
	???
Return: AX = FFFFh if invalid function
	???
SeeAlso: AX=4331h,AX=5658h
--------s-7F5658BHC1-------------------------
INT 7F U - Voyetra - VAPISG - API
	AX = 5658h ('VX')
	BH = C1h
	BL = function (00h-1Bh)
	???
Return: ???
Program: VAPISG is a MIDI driver by Voyetra for the Aztech Sound Galaxy
	  sound board
SeeAlso: AX=4331h,AX=564Dh
--------N-7F81-------------------------------
INT 7F - Alloy NTNX - ATTACH DEVICE FOR USER
	AH = 81h
	AL = user ID
	DS:DX -> ASCIZ device name
SeeAlso: AH=82h
--------N-7F82-------------------------------
INT 7F - Alloy NTNX - RELEASE DEVICE FOR USER
	AH = 82h
	AL = user ID
	DS:DX -> ASCIZ device name
SeeAlso: AH=81h
--------N-7FA0-------------------------------
INT 7F - Alloy MW386 - GET USER NAME
	AH = A0h
	DL = user number (FFh = caller)
	DH = machine number for user
	ES:DI -> 17-byte buffer for ASCIZ user name
Return: CF set if invalid user number
SeeAlso: AH=03h,AH=A1h
--------N-7FA1-------------------------------
INT 7F - Alloy MW386 - GET MACHINE, USER, AND PROCESS NUMBER
	AH = A1h
Return: AL = process number
	DL = user number
	DH = machine number
SeeAlso: AH=03h,AH=A0h,AH=A2h
--------N-7FA2-------------------------------
INT 7F - Alloy MW386 - GET USER PRIVILEGE LEVEL
	AH = A2h
	DL = user number (FFh = caller)
	DH = machine number for user
Return: CF clear if successful
		 AL = privilege level
		00h supervisor
		01h high
		02h medium
		03h low
	CF set if invalid user number
SeeAlso: AH=A1h,AH=A3h
--------N-7FA3-------------------------------
INT 7F - Alloy MW386 - GET USER LOGIN STATE
	AH = A3h
	DL = user number
	DH = machine number for user
Return: CF clear if successful
	    AL = login state
		00h never logged in
		01h currently logged out
		03h currently logged in
	CF set if invalid user number or user not active
SeeAlso: AH=A2h
--------N-7FA4-------------------------------
INT 7F - Alloy MW386 - VERIFY USER PASSWORD
	AH = A4h
	DS:DX -> ASCIZ password (null-padded to 16 bytes)
Return: AL = status
	    00h	 accepted
	    else invalid password
--------N-7FA500-----------------------------
INT 7F - Alloy MW386 - GET USER STATUS
	AX = A500h
	DI = machine number and user number
Return: CF clear if successful
	    BX = user flags
		bit 5: allow messages
	    CL = scan code for task manager hotkey
	    CH = scan code for spooler hotkey
	    DL = scan code for task swapper hotkey
	    DH = modifier key status
	CF set if invalid user number
SeeAlso: AX=A501h
Index:	hotkeys;Alloy MW386
--------N-7FA501-----------------------------
INT 7F - Alloy MW386 - SET USER STATUS
	AX = A501h
	BX = user flags (see AX=A500h)
	CL = scan code for task manager hotkey
	CH = scan code for spooler hotkey
	DL = scan code for task swapper hotkey
	DH = modifier key status
	DI = machine number and user number
Return: CF set if invalid user number
Note:	must have supervisor privilege to set another user's status
SeeAlso: AX=A500h
Index:	hotkeys;Alloy MW386
--------V-7FABCDBX0000-----------------------
INT 7F - IBM 8516 Touch Screen Device Driver - GET API ENTRY
	AX = ABCDh
	BX = 0000h
Return: AX = total number of functions available
	ES:BX -> entry point array (see #2551)
SeeAlso: AX=0104h,AX=0105h

(Table 2551)
Values for 8516 Touch Screen function number:
 00h	check initialization and reset (see #2552)
 14h	set user-defined subroutine (see #2553)
Notes:	each driver function takes two stack parameters using Pascal calling
	  conventions: address of parameter block and address of results buffer
	all pointers are FAR pointers
	on return, AX contains the status of the call:
		 AX = 0000h successful
		 0001h invalid input
		 0002h interface error
		 0003h unable to perform function

Format of 8516 Touch Screen Function 00h parameter block:
Offset	Size	Description	(Table 2552)
 00h	WORD	0000h (function number)
Note:	this function should be called before any other device driver functions

Format of 8516 Touch Screen Function 00h results buffer:
Offset	Size	Description	(Table 2553)
 00h	WORD	touch screen status
		0000h unavailable
		0001h uncalibrated
		FFFFh available
 02h	WORD	aux mouse status (0000h not present, FFFFh present)
Notes:	the following driver parameters will have been reset to zero:
	  touchdown counter, liftoff counter, position at last touch, position
	  at last lift, int call mask, select on count, select off count,
	  pos select on count, pos select off count.
	the following driver parameters will have been reset as listed:
	  mouse emulation mode: left on
	  thresholds: 46 on screen, 96 push harder, 80 push release
	  x, y hysteresis: 400
	  data repeat rate: 40/sec
	  select mechanism: push-harder - first-touch
	  coordinate origin: upper left corner
	  filter frequency: medium
	  data block mask: all enabled
	  click lock: on
--------N-7FB0-------------------------------
INT 7F - Alloy NTNX, MW386 - RELEASE ALL SEMAPHORES FOR USER
	AH = B0h
	AL = user number
	DS = code segment
Note:	MW386 ignores AL and DS; it releases all semaphores locked using INT 67
	  or INT 7F locking functions
SeeAlso: AH=B1h,AH=B2h,AH=B3h,AH=B4h
--------N-7FB1--SF00-------------------------
INT 7F - Alloy NTNX, MW386 - RELEASE NORMAL SEMAPHORES FOR USER
	AH = B1h subfn 00h
	AL = (bits 7-5) 000
	     (bits 4-0) user ID
Note:	MW386 ignores AL; it releases all semaphores locked using INT 67 or
	  INT 7F locking functions
SeeAlso: AH=B0h,AH=B2h,AH=B3h,AH=B4h
--------N-7FB2--SF01-------------------------
INT 7F - Alloy NTNX - RELEASE MESSAGES FOR USER
	AH = B2h subfn 01h
	AL = (bits 7-5) 001
	     (bits 4-0) user ID
SeeAlso: AH=B0h,AH=B1h,AH=B3h,AH=B4h
--------N-7FB3--SF02-------------------------
INT 7F - Alloy NTNX - RELEASE FILES FOR USER
	AH = B3h subfn 02h
	AL = (bits 7-5) 010
	     (bits 4-0) user ID
SeeAlso: AH=B0h,AH=B1h,AH=B2h,AH=B4h
--------N-7FB4-------------------------------
INT 7F - Alloy NTNX - RELEASE DEVICES FOR USER
	AH = B4h
	AL = user ID
SeeAlso: AH=B0h,AH=B1h,AH=B2h,AH=B3h
--------N-7FC3-------------------------------
INT 7F - Alloy MW386 - WRITE BYTE TO TERMINAL AUX PORT
	AH = C3h
	AL = byte to write
Return: CF clear if successful
	CF set on error
SeeAlso: AH=C6h
--------N-7FC5-------------------------------
INT 7F - Alloy MW386 - CHANGE CONSOLE MODE
	AH = C5h
	AL = new console mode
	    00h keyboard indirect
	    01h keyboard direct
	    02h data handshake enforced
	    03h no data handshake
Return: CF clear if successful
	    AL = prior console mode
	CF set on error (caller is not remote user)
Note:	modes 2 and 3 may be used for input through the console port; no video
	  output should be performed in these modes
--------N-7FC6-------------------------------
INT 7F - Alloy MW386 - WRITE BYTE TO CONSOLE PORT
	AH = C6h
	AL = byte to write
Return: CF clear if successful
	CF set on error (caller is not remote user)
Note:	any terminal driver data translation will be bypassed
SeeAlso: AH=C3h,AH=C7h
--------N-7FC7-------------------------------
INT 7F - Alloy MW386 - READ CONSOLE DATA BYTE
	AH = C7h
Return: CF clear if successful
	    AL = byte read
	CF set on error (no data available or caller is not remote user)
Note:	used to read data after placing console in mode 2 or 3 (see AH=C5h)
SeeAlso: AH=C5h,AH=C6h,AH=C8h
--------N-7FC8-------------------------------
INT 7F - Alloy MW386 - READ CONSOLE DATA INTO BUFFER
	AH = C8h
	AL = maximum bytes to read
	ES:DI -> buffer for console data
Return: CF clear if successful
	    CX = number of bytes read
	CF set on error (caller is not remote user)
SeeAlso: AH=C7h
--------N-7FCF-------------------------------
INT 7F - Alloy NTNX - REBOOT USER PROCESSOR
	AH = CFh
	DS:DX -> ASCIZ string containing user number to be reset
SeeAlso: AH=D6h
--------N-7FD6-------------------------------
INT 7F - Alloy MW386 - RESET NETWORK EXECUTIVE
	AH = D6h
	DS:DX -> reset packet (see #2554)
Return: never if successful
Note:	all users will be shut down immediately if successful
SeeAlso: AH=CFh

Format of Alloy MW386 reset packet:
Offset	Size	Description	(Table 2554)
 00h	DWORD	reset code (60606060h)
 04h 16 BYTEs	ASCIZ supervisor password padded with nulls
--------N-7FD7-------------------------------
INT 7F - Alloy MW386 - POST EVENT
	AH = D7h
	AL = user number (if local event)
	DX = event number
--------N-7FD8-------------------------------
INT 7F - Alloy MW386 - FLUSH DISK BUFFERS
	AH = D8h
Return: CF set on error
Note:	forces all disk buffers to be written out immediately
SeeAlso: INT 21/AH=0Dh,INT 21/AX=5D01h,INT 2F/AX=1120h
--------N-7FDB-------------------------------
INT 7F - Alloy MW386 v2+ - GET MW386 INVOCATION DRIVE
	AH = DBh
Return: AL = drive from which MW386 was started (2=C:,3=D:,etc)
--------N-7FE0-------------------------------
INT 7F - Alloy MW386 - CREATE DOS TASK
	AH = E0h
	AL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
	DS:DX -> ASCIZ task name (max 16 bytes)
Return: CF clear if successful
	    AL = task create ID
	CF set on error
Note:	only foreground DOS tasks can use this function
SeeAlso: AH=E1h,AH=E2h,AH=E3h,AH=E6h,AH=E7h
--------N-7FE1-------------------------------
INT 7F - Alloy MW386 - GET DOS TASK PID FROM CREATE ID
	AH = E1h
	AL = create ID (from AH=E0h)
Return: AL = DOS process number
	CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
Note:	this function should not be called immediately after creating a new
	  DOS task, since the new task is being initialized by a concurrent
	  process
SeeAlso: AH=E0h,AH=E2h
--------N-7FE2-------------------------------
INT 7F - Alloy MW386 - SWITCH TO NEW DOS TASK
	AH = E2h
	AL = DOS process number (from AH=E1h)
Return: CF set on error (invalid process number or caller not foreground task)
Notes:	specified task becomes the foreground task and current task is placed
	  in the background
	may only be called by a foreground task
SeeAlso: AH=E0h,AH=E1h
--------N-7FE3-------------------------------
INT 7F - Alloy MW386 - CHANGE NAME OF DOS TASK
	AH = E3h
	DS:DX -> ASCIZ task name
---v1.x---
	AL = user number
---v2+---
	BH = user number
	BL = task number
Return: CF clear if successful
	CF set on error (invalid process number)
SeeAlso: AH=E0h,AH=E4h,AH=E5h
--------N-7FE4-------------------------------
INT 7F - Alloy MW386 - GET TASK NAME FROM PROCESS NUMBER
	AH = E4h
	ES:DI -> buffer for task name
---v1.x---
	AL = user number
---v2+---
	BH = user number
	BL = task number
Return: CF clear if successful
	    CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
	    DX = task flags
		bit 7: MS-DOS process
	    ES:DI buffer filled
	CF set on error (invalid process number)
SeeAlso: AH=E3h,AH=E5h
--------N-7FE5-------------------------------
INT 7F - Alloy MW386 - GET PROCESS NUMBER FROM TASK NAME
	AH = E5h
	DS:DX -> ASCIZ task name
	BH = user number
Return: CF clear if successful
	    AL = DOS process number
	    CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
	CF set on error (no match for name)
SeeAlso: AH=E3h,AH=E4h
--------N-7FE6-------------------------------
INT 7F - Alloy MW386 - GET NUMBER OF AVAILABLE USER TASKS
	AH = E6h
Return: AX = number of processes available to current user
SeeAlso: AH=E0h
--------N-7FE7-------------------------------
INT 7F - Alloy MW386 - REMOVE DOS TASK
	AH = E7h
	AL = DOS process number
Return:	CF clear if successful
	CF set on error (invalid process number or first process)
Note:	can only be called by a foreground task
SeeAlso: AH=E0h
--------N-7FE8-------------------------------
INT 7F - Alloy MW386 - DOS TASK DELAY
	AH = E8h
	CX = delay time in milliseconds
Note:	a delay of 0 may be used to surrender the current time slice
SeeAlso: INT 15/AX=1000h,INT 1A/AX=FF01h,INT 21/AH=EEh"DoubleDOS"
SeeAlso: INT 2F/AX=1680h
--------N-7FF0-------------------------------
INT 7F - Alloy MW386 - RESTRICT DIRECTORY TO GROUP
	AH = F0h
	AL = group number
	DS:DX -> ASCIZ directory name
Return: CF clear if successful
	    AX = status
		0002h directory not found
		0003h directory not found
		0005h directory in use, cannot be restricted
		02xxh restricted to group xxh
	CF set on error
Note:	the restriction on the directory may be removed by calling this
	  function with group 0, then using AH=F1h to assign the directory to
	  group 0
SeeAlso: AH=F1h,AH=F2h,AH=F3h
--------N-7FF1-------------------------------
INT 7F - Alloy MW386 - ASSIGN DIRECTORY TO GROUP
	AH = F1h
	AL = group number
	DS:DX -> ASCIZ directory name
Notes:	performs permanent assignment to a group; no immediate action is taken
	  unless the directory has been restricted with AH=F0h
	may be used to restrict a nonexistent directory
SeeAlso: AH=F0h
--------N-7FF2-------------------------------
INT 7F - Alloy MW386 - READ RESTRICTED DIRECTORY ENTRY
	AH = F2h
	CX = entry number
	ES:DI -> 64-byte buffer
Return: CF clear if successful
	    buffer filled with 63-byte directory info and 1-byte group number
	CF set on error (invalid entry)
SeeAlso: AH=F0h,AH=F3h
--------N-7FF3-------------------------------
INT 7F - Alloy MW386 - READ RESTRICTED DIRECTORY ENTRY FOR GROUP
	AH = F3h
	AL = group number
	CX = entry number
	ES:DI -> 64-byte buffer
Return: CF clear if successful
	    CX = next entry number
	    buffer filled with 63-byte directory info and 1-byte group number
	CF set on error (no more matching entries)
Note:	like AH=F2h, but only returns directories belonging to the specified
	  group
SeeAlso: AH=F2h
--------N-7FF8-------------------------------
INT 7F - Alloy MW386 - ASSIGN USER TO GROUP
	AH = F8h
	AL = group number
	DL = user number
	DH = machine number (currently 00h)
Return: CF clear if successful
	CF set on error (user already in maximum number of groups)
Note:	each user is allowed eight group assignments
SeeAlso: AH=F9h,AH=FAh
--------N-7FF9-------------------------------
INT 7F - Alloy MW386 - REMOVE USER FROM GROUP
	AH = F9h
	AL = group number
	DL = user number
	DH = machine number (currently 00h)
Return: CF clear if successful
	CF set if failed
SeeAlso: AH=F8h,AH=FAh
--------N-7FFA-------------------------------
INT 7F - Alloy MW386 - GET USER GROUP LIST
	AH = FAh
	DL = user number
	DH = machine number (currently 00h)
	ES:DI -> 16-byte buffer for group list
Return: CX = number of groups
	ES:DI buffer filled with group numbers
SeeAlso: AH=F8h,AH=F9h
--------N-7FFB-------------------------------
INT 7F - Alloy MW386 - ASSIGN GROUP NAME
	AH = FBh
	CL = group number
	ES:DI -> ASCIZ group name (max 17 bytes)
SeeAlso: AH=FCh
--------N-7FFC-------------------------------
INT 7F - Alloy MW386 - GET GROUP NAME
	AH = FCh
	CL = group number
	ES:DI -> 17-byte buffer for ASCIZ name
Return: ES:DI buffer filled
Note:	if the group has not been named, "(unnamed)" is returned
SeeAlso: AH=FBh
----------80---------------------------------
INT 80 - Q-PRO4 - ???
--------r-80---------------------------------
INT 80 - reserved for BASIC
Note:	this vector and INT 81 through INT ED are modified but not restored by
	  Direct Access v4.0, and may be left dangling by other programs
	  written with the same version of compiled BASIC
SeeAlso: INT 81"BASIC",INT 86"BASIC",INT EF"BASIC"
--------E-80---------------------------------
INT 80 - Phar Lap 386|DOS-Extender - RELOCATED PRINT-SCREEN
Note:	the extender relocates INT 05 to here by default, but can be told to
	  leave INT 05 alone with the commandline (or DOSX= environment
	  variable) flag -PRIVEC 5
SeeAlso: INT 05
----------80---------------------------------
INT 80 - BusLogic BT-946C PCI SCSI Adapter - SCRATCHPAD RAM (NOT A VECTOR!)
Note:	the factory-default location for the eight bytes of scratchpad RAM
	  needed by the SCSI adapter is 0000h:0200h, which is interrupt
	  vectors 80h and 81h
SeeAlso: INT 81"BusLogic"
--------s-80----BL00-------------------------
INT 80 - SBSIM - "STARTSND" - START SOUND ON SPECIFIED DRIVER
	BL = 00h
	BH = driver number (01h = FM, 02h=DDBV, 03h=memvoice, 05h=MIDI)
Return: AX = initialization result (see #2555)
Program: SBSIM is Creative Labs' SoundBlaster Simplified Interface Module,
	  which provides access to multiple drivers for the SoundBlaster
	  board through a single interface
Range:	INT 80h to INT BFh, selected automatically
Note:	the SBSIM installation check consists of testing for the signature
	  "SBSIM" at offset 103h in the interrupt handler's segment.
SeeAlso: INT 80/BL=01h"SBSIM",INT 80/BL=02h"SBSIM",INT 80/BL=03h"SBSIM"
SeeAlso: INT 80/BX=0000h"SBSIM"

(Table 2555)
Values for SBSIM error code:
 01h	busy--currently in use
 02h	bad driver specified
 03h	invalid function
 04h	voice process already active
 05h	couldn't start CT-VOICE
 06h	couldn't start CTVDSK
 07h	invalid SBSIM handle
 08h	buffer not initialized yet
 09h	bad filename
 0Ah	bad file handle
 0Bh	driver not started yet
 0Ch	XMS driver not installed
 0Dh	no free SBSIM handles
 0Eh	bad file type
 0Fh	couldn't free XMS block
 10h	invalid source selected
 11h	get pan position failed
 12h	set pan position failed
 13h	set volume failed
 14h	couldn't start fade/pan
 15h	couldn't stop fade/pan
 16h	couldn't pause fade/pan
 17h	not a fade/pan operation
 18h	bad mode for fade/pan
 19h	couldn't start fade/pan
 1Ah	source not fading/panning
 1Bh	FM or MIDI already playing
 1Ch	bad MIDI mapper format
--------s-80----BL01-------------------------
INT 80 - SBSIM - "PLAYSND" - PLAY MUSIC/VOICE ON SELECTED DRIVER
	BL = 01h
	BH = driver number (01h = FM, 02h=DDBV, 03h=memvoice, 05h=MIDI)
Return: AX = result (see #2555)
SeeAlso: INT 80/BL=00h"SBSIM",INT 80/BL=02h"SBSIM",INT 80/BL=04h"SBSIM"
--------s-80----BL02-------------------------
INT 80 - SBSIM - "STOPSND" - STOP MUSIC/VOICE ON SELECTED DRIVER
	BL = 02h
	BH = driver number (01h = FM, 02h=DDBV, 03h=memvoice, 05h=MIDI)
Return: nothing
SeeAlso: INT 80/BL=00h"SBSIM",INT 80/BL=01h"SBSIM",INT 80/BL=03h"SBSIM"
--------s-80----BL03-------------------------
INT 80 - SBSIM - "PAUSESND" - TEMPORARILY PAUSE PLAYBACK ON SELECTED DRIVER
	BL = 03h
	BH = driver number (01h = FM, 02h=DDBV, 03h=memvoice, 05h=MIDI)
Return: nothing
SeeAlso: INT 80/BL=00h"SBSIM",INT 80/BL=02h"SBSIM",INT 80/BL=04h"SBSIM"
SeeAlso: INT 80/BL=05h
--------s-80----BL04-------------------------
INT 80 - SBSIM - "RESUMESND" - RESTART PLAYBACK ON SELECTED DRIVER
	BL = 04h
	BH = driver number (01h = FM, 02h=DDBV, 03h=memvoice, 05h=MIDI)
Return: nothing
SeeAlso: INT 80/BL=00h"SBSIM",INT 80/BL=03h"SBSIM",INT 80/BL=05h"SBSIM"
--------s-80----BL05-------------------------
INT 80 - SBSIM - "GETSNDSTAT" - GET DRIVER'S STATUS
	BL = 05h
	BH = driver number (01h = FM, 02h=DDBV, 03h=memvoice, 05h=MIDI)
Return: AX = status
SeeAlso: INT 80/BL=00h"SBSIM",INT 80/BL=01h"SBSIM",INT 80/BL=03h"SBSIM"
--------s-80----BX0000-----------------------
INT 80 - SoundBlaster SBFM driver - GET VERSION
	BX = 0000h
Return: ???
Note:	SBFM installs at a free interrupt in the range 80h through BFh
SeeAlso: BX=0008h"SBFM",INT 2F/AX=FBFBh
--------s-80----BX0000-----------------------
INT 80 - SBSIM - "QUERYVERSION" - GET VERSION
	BX = 0000h
Return: AX = version (AH = major, AL = minor)
Program: SBSIM is Creative Labs' SoundBlaster Simplified Interface Module,
	  which provides access to multiple drivers for the SoundBlaster
	  board through a single interface
Range:	INT 80h to INT BFh, selected automatically
Note:	the SBSIM installation check consists of testing for the signature
	  "SBSIM" at offset 103h in the interrupt handler's segment.
SeeAlso: BX=0001h"SBSIM",BX=0005h"SBSIM",INT 21/AX=4402h"CTMMSYS"
SeeAlso: INT 80/BL=00h"SBSIM"
Index:	installation check;SBSIM|installation check;SoundBlaster
--------s-80----BX0001-----------------------
INT 80 - SoundBlaster SBFM driver - SET MUSIC STATUS BYTE ADDRESS
	BX = 0001h
	DX:AX -> music status byte
SeeAlso: BX=0000h"SBFM",BX=0002h"SBFM",BX=0003h"SBFM"
--------s-80----BX0001-----------------------
INT 80 - SBSIM - "QUERYDRIVERS" - CHECK DRIVERS INSTALLED
	BX = 0001h
Return: AX = bit flags for loaded drivers (see #2556)
SeeAlso: BX=0000h"SBSIM",BX=0002h"SBSIM",BX=0005h"SBSIM",INT 80/BL=00h"SBSIM"

Bitfields for SBSIM loaded drivers:
Bit(s)	Description	(Table 2556)
 0	FM
 1	double disk-buffered voice driver (DDBV)
 2	memory voice driver
 3	auxiliary driver (mixer)
 4	MIDI
--------s-80----BX0002-----------------------
INT 80 - SoundBlaster SBFM driver - SET INSTRUMENT TABLE
	BX = 0002h
	CX = number of instruments
	DX:AX -> instrument table
SeeAlso: BX=0000h"SBFM",BX=0001h"SBFM",BX=0005h"SBFM"
--------s-80----BX0002-----------------------
INT 80 - SBSIM - GETADDRESS" - GET SELECTED DRIVER'S ENTRY POINT
	BX = 0002h
	AX = driver (00h = FM,01h = DDBV,02h = memvoice,03h = mixer,04h = MIDI)
Return: CF clear if successful
		 DX:AX -> entry point
	CF set on error
SeeAlso: BX=0000h"SBSIM",BX=0001h"SBSIM",BX=0005h"SBSIM",INT 80/BL=00h"SBSIM"
--------s-80----BX0003-----------------------
INT 80 - SoundBlaster SBFM driver - SET SYSTEM CLOCK RATE
	BX = 0003h
	AX = clock rate divisor (1193180 / desired frequency in Hertz)
	    FFFFh to restore to 18.2 Hz
SeeAlso: BX=0000h"SBFM",BX=0001h"SBFM",BX=0004h"SBFM"
--------s-80----BX0004-----------------------
INT 80 - SoundBlaster SBFM driver - SET DRIVER CLOCK RATE
	BX = 0004h
	AX = driver clock rate divisor (1193180 / frequency in Hertz)
Note:	default frequency is 96 Hz
SeeAlso: BX=0000h"SBFM",BX=0003h"SBFM"
--------s-80----BX0005-----------------------
INT 80 - SoundBlaster SBFM driver - TRANSPOSE MUSIC
	BX = 0005h
	AX = semi-tone offset
SeeAlso: BX=0000h"SBFM",BX=0002h"SBFM",BX=0006h"SBFM"
--------s-80----BX0005-----------------------
INT 80 - SBSIM - "GETBUFFERINFO" - GET DRIVER'S BUFFER ADDRESS
	BX = 0005h
	AX = driver (00h = FM, 01h = DDB Voice, 04h = MIDI)
Return: CF clear if successful
	    DX:AX -> buffer
	    CX = buffer size in K
	CF set on error
Program: SBSIM is Creative Labs' SoundBlaster Simplified Interface Module,
	  which provides access to multiple drivers for the SoundBlaster
	  board through a single interface
Range:	INT 80h to INT BFh, selected automatically
Note:	the SBSIM installation check consists of testing for the signature
	  "SBSIM" at offset 103h in the interrupt handler's segment.
SeeAlso: BX=0000h"SBSIM",BX=0001h"SBSIM",BX=0002h"SBSIM",INT 80/BL=00h"SBSIM"
--------s-80----BX0006-----------------------
INT 80 - SoundBlaster SBFM driver - PLAY MUSIC
	BX = 0006h
	DX:AX -> music block
Return: AX = status
	    0000h successful
	    0001h music already active
SeeAlso: BX=0000h"SBFM",BX=0007h"SBFM",BX=000Ah"SBFM",INT 1A/AX=FF04h
--------s-80----BX0007-----------------------
INT 80 - SoundBlaster SBFM driver - STOP MUSIC
	BX = 0007h
Return: AX = status
	    0000h successful
	    0001h music not active
SeeAlso: BX=0000h"SBFM",BX=0006h"SBFM",BX=0009h"SBFM",INT 1A/AX=FF05h
--------s-80----BX0008-----------------------
INT 80 - SoundBlaster SBFM driver - RESET DRIVER
	BX = 0008h
Return: AX = status
	    0000h successful
	    0001h music is active
SeeAlso: BX=0000h"SBFM"
--------s-80----BX0009-----------------------
INT 80 - SoundBlaster SBFM driver - PAUSE MUSIC
	BX = 0009h
Return: AX = status
	    0000h successful
	    0001h no music active
SeeAlso: BX=0000h"SBFM",BX=0007h"SBFM",BX=000Ah"SBFM",INT 1A/AX=FF01h
--------s-80----BX000A-----------------------
INT 80 - SoundBlaster SBFM driver - RESUME MUSIC
	BX = 000Ah
Return: AX = status
	    0000h successful
		 0001h no music paused
SeeAlso: BX=0000h"SBFM",BX=0006h"SBFM",BX=0009h"SBFM"
--------s-80----BX000B-----------------------
INT 80 - SoundBlaster SBFM driver - SET USER-DEF TRAP FOR SYSTEM-EXCLUSIVE CMDS
	BX = 000Bh
	DX:AX -> trap routine
SeeAlso: BX=0000h"SBFM"
--------s-80----BX0400-----------------------
INT 80 - SBSIM - "GETVOLUME" - GET SOURCE'S VOLUME
	BX = 0400h
	AX = sound source (see #2557)
Return: CF clear if successful
	    AX = volume
	CF set on error
	    AX = error code (see #2555 at INT 80/BL=00h)
SeeAlso: BX=0401h"SBSIM"

(Table 2557)
Values for SBSIM sound source:
 00h	master volume
 01h	voice
 02h	FM
 03h	CD
 04h	line in
 05h	microphone
--------s-80----BX0401-----------------------
INT 80 - SBSIM - "SETVOLUME" - SET SOURCE'S VOLUME
	BX = 0401h
	AX = sound source (see #2557)
	DX = new volume
Return: AX = result (0000h = success) (see also INT 80/BL=00h)
SeeAlso: BX=0400h"SBSIM"
--------N-8001-------------------------------
INT 80 - QPC Software PKTINT.COM - INITIALIZE
	AH = 01h
Return: AX = 0000h
	CX = FFFFh
	DX = FFFFh
Notes:	this interrupt is the WinQVTNet protected mode interface to Windows 3.0
	all buffer pointers are reset back to 0
--------N-8002-------------------------------
INT 80 - QPC Software PKTINT.COM - GET BUFFER ADDRESSES
	AH = 02h
	BX = extra bytes to allocate per packet
Return: AX = segment address of 10K buffer (for receives???)
	BX = segment address of 2K buffer (for sends???)
SeeAlso: AH=05h
--------N-8003-------------------------------
INT 80 - QPC Software PKTINT.COM - GET ENTRY POINT
	AH = 03h
Return: CX:DX -> receive call address
Note:	the returned address can be used in the packet driver calls since it
	  will be a valid address in all DOS boxes
SeeAlso: AH=06h
--------N-8004-------------------------------
INT 80 - QPC Software PKTINT.COM - ENABLE???
	AH = 04h
	BX = ???
Return: ???
SeeAlso: AH=01h
--------N-8005-------------------------------
INT 80 - QPC Software PKTINT.COM - GET RECEIVE STATISTICS
	AH = 05h
Return: AX = amount of buffer currently in use
	BX = current offset in buffer
	CX = number of times receive has been called
SeeAlso: AH=02h
--------N-8006-------------------------------
INT 80 - QPC Software PKTINT.COM - REMOVE RECEIVED PACKET
	AH = 06h
Return: BX = next packet offset
	CX = number of bytes still buffered
	DX = size of packet released back into buffer pool
SeeAlso: AH=03h
--------r-81---------------------------------
INT 81 - reserved for BASIC
Note:	this vector is modified but not restored by Direct Access v4.0, and
	  may be left dangling by other programs written with the same version
	  of compiled BASIC
SeeAlso: INT 80"BASIC",INT 82"BASIC"
--------N-81---------------------------------
INT 81 - IBM TOKEN RING ADAPTER - ???
SeeAlso: INT 82"TOKEN RING",INT 91"TOKEN RING"
----------81---------------------------------
INT 81 - BusLogic BT-946C PCI SCSI Adapter - SCRATCHPAD RAM (NOT A VECTOR!)
Note:	the factory-default location for the eight bytes of scratchpad RAM
	  needed by the SCSI adapter is 0000h:0200h, which is interrupt
	  vectors 80h and 81h
SeeAlso: INT 80"BusLogic"
--------s-810200---------------------------
INT 81 - Gravis UltraSound - MegaEm - PROCESS COMMAND LINE
	AX = 0200h
	BX = PSP segment
	SI = ??? (data area)
Return:	AX = status (see #2558)
	BL = emulation state
	    bit 1   Emulation is on
	    bit 2   Emulation is off
Program: MegaEm is a protected-mode SoundBlaster, SoundCanvas, and MT-32
	  emulator for the Gravis UltraSound
Range:	INT ??? to INT ??? (see INT 21/AX=FD12h)
SeeAlso: AX=0202h,AX=0300h,AX=0400h,INT 21/AX=FD12h/BX=3457h

(Table 2558)
Values for MegaEm status:
 0000h	successful
 0001h	invalid command line optie
 0002h	display options
 0003h	???
 0004h	invalid number of voices specified
 0005h	could not load enough patches to provide acceptable emulation
 0006h	to many warnings on patch loading
 0007h	??? (not used anymore)
 0008h	/CO and SCSI don't work together
 0009h	invalid music volume
 000Ah	invalid master volume
 000Bh	/SC switch is no longer valid
 0100h	??? (some error on patch loading)
--------s-810202---------------------------
INT 81h - Gravis UltraSound - MegaEm - ???
	AX = 0202h
Return:	AX = ???
SeeAlso: AX=0200h,AX=0300h,AX=0400h,INT 21/AX=FD12h/BX=3457h
--------s-810300---------------------------
INT 81h - Gravis UltraSound - MegaEm - LOAD SAMPLE ???
	AX = 0300h
Return:	AX = ???
SeeAlso: AX=0200h,AX=0202h,AX=0400h,INT 21/AX=FD12h/BX=3457h
--------s-810400---------------------------
INT 81h - Gravis UltraSound - MegaEm - ???
	AX = 0400h
	BX = ??? (segment)
Return:	AX = ???
	BX = ???
Program: MegaEm is a protected-mode SoundBlaster, SoundCanvas, and MT-32
	  emulator for the Gravis UltraSound
SeeAlso: AX=0200h,AX=0202h,AX=0300h,INT 21/AX=FD12h/BX=3457h
--------r-82---------------------------------
INT 82 - reserved for BASIC
SeeAlso: INT 81"BASIC",INT 83"BASIC"
--------N-82---------------------------------
INT 82 - IBM TOKEN RING ADAPTER - ???
	AH = function
	    00h display message???
		DS:BX -> string
	???
Return: ???
SeeAlso: INT 81"TOKEN RING",INT 91"TOKEN RING"
--------r-83---------------------------------
INT 83 - reserved for BASIC
SeeAlso: INT 82"BASIC",INT 84"BASIC"
--------s-8300-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 00h
	???
Return: CF clear (successful)
	AX = ??? (0302h)
Program: JM Pro Tracker is a public-domain resident .MOD (digital music)
	  player by Josha Munnik

(Table 2559)
Values for JM Pro Tracker error code:
 000Ah	???
 000Bh	???
 0014h	???
 001Eh	some required parameters have not yet been set
 001Fh	already playing???
 FExxh	busy (API call already in progress)
 FFxxh	invalid function number
--------s-8301-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 01h
	DX = ??? or FFFFh
	???
Return: CF clear if successful
	CF set on error
	    AX = error code (see #2559)
--------s-8302-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 02h
	BX = ???
	???
Return: CF clear if successful
	    AX = ???
		 BX = ???
	    CX = ???
	    DX = ???
	    SI = ???
	CF set on error
	    AX = error code (000Ah,000Bh,other) (see #2559)
--------s-8303-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 03h
	BX = ??? (only low four bits, must be nonzero)
	CX = ???
	???
Return: CF clear if successful
	CF set on error
	    AX = error code (0014h) (see #2559)
--------s-8304-------------------------------
INT 83 - JM Pro Tracker v5.0 - SET DMA BUFFER???
	AH = 04h
	CX = number of bytes in suggested buffer
	ES:DI -> suggested buffer for DMA transfers???
Return: CF clear if successful
	    ES:AX -> actual buffer (filled with bytes of 80h)
	    CX = actual length (multiple of 4)
	CF set on error
	    AX = error code (see #2559)
Note:	the buffer must not cross a 64K DMA page boundary
--------s-8305-------------------------------
INT 83 - JM Pro Tracker v5.0 - SET ??? BUFFER
	AH = 05h
	CX = length of buffer
	ES:DI -> buffer for/containing ???
Return: CF clear (successful)
SeeAlso: AH=06h,AH=07h,AH=18h
--------s-8306-------------------------------
INT 83 - JM Pro Tracker v5.0 - SET ??? BUFFER
	AH = 06h
	CX = length of buffer
	ES:DI -> buffer for/containing ???
Return: CF clear (successful)
SeeAlso: AH=05h,AH=07h,AH=18h
--------s-8307-------------------------------
INT 83 - JM Pro Tracker v5.0 - SET ??? BUFFER
	AH = 07h
	BX = ???
	CX = length of buffer
	ES:DI -> buffer for/containing ???
Return: CF clear (successful)
SeeAlso: AH=05h,AH=06h,AH=18h
--------s-8308-------------------------------
INT 83 - JM Pro Tracker v5.0 - START PLAYING???
	AH = 08h
	???
Return: CF clear if successful
	   ???
	CF set on error
	    AX = error code (001Eh,001Fh) (see #2559)
SeeAlso: AH=09h,AH=0Ah
--------s-8309-------------------------------
INT 83 - JM Pro Tracker v5.0 - PAUSE???
	AH = 09h
	???
Return: CF clear if successful
	CF set on error
	    AX = error code (see #2559)
SeeAlso: AH=08h,AH=0Ah
--------s-830A-------------------------------
INT 83 - JM Pro Tracker v5.0 - RESUME???
	AH = 0Ah
	???
Return: CF clear if successful
	CF set on error
	    AX = error code (001Fh) (see #2559)
SeeAlso: AH=08h,AH=09h
--------s-830B-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 0Bh
	BX = ???
	???
Return: CF clear if successful
	CF set on error
--------s-830C-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 0Ch
	DX bit 5 = ???
	???
Return: CF clear if successful
	    BX = ??? (FFFFh)
	    CX = ??? (0000h)
	    DX = ???
	CF set on error
	    AX = error code (see #2559)
--------s-830D-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 0Dh
	BX = ???
	???
Return: CF clear (successful)
--------s-830E-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 0Eh
	BX = ??? (ignored if ES:DI = 0000h:0000h)
	ES:DI -> ??? or 0000h:0000h
Return: CF clear (successful)
--------s-830F-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 0Fh
	???
Return: CF clear if successful
	    AX = ???
	CF set on error
	    AX = error code (see #2559)
--------s-8310-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 10h
	BL = subfunction???
	CX = ???
	DX = ???
	???
Return: CF clear if successful
	    CX = DX = ???
	CF set on error
	    AX = error code (see #2559)
SeeAlso: AH=18h
--------s-8311-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 11h
	BL = ???
	CX = ???
Return: CF clear (successful)
--------s-8312-------------------------------
INT 83 - JM Pro Tracker v5.0 - CLEAR ???
	AH = 12h
Return: nothing
--------s-8313-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 13h
	BX = ???
Return: CF clear (successful)
--------s-8314-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 14h
	???
Return: CF clear (successful)
	BX = ???
--------s-8315-------------------------------
INT 83 - JM Pro Tracker v5.0 - GET ???
	AH = 15h
	BX = what to get (zero/nonzero)
Return: CF clear if successful
	    BX = ???
	    DX = ???
	CF set on error
	    AX = error code (see #2559)
--------s-8316-------------------------------
INT 83 - JM Pro Tracker v5.0 - ???
	AH = 16h
	AL = subfunction
	    00h ???
		Return: BX = ???
			CX = ???
			DX = ???
			ES:DI -> ???
			CF indicates ???
	    01h ???
		Return: BX = ???
			CX = ???
			DX = ???
Return: CF clear if successful
	CF set on error
	    AX = error code (FFxxh) (see #2559)
--------s-8317-------------------------------
INT 83 - JM Pro Tracker v5.0 - UNHOOK API INTERRUPT
	AH = 17h
Return: CF clear if successful
	CF set on error (hooked by another program)
--------s-8318-------------------------------
INT 83 - JM Pro Tracker v5.0 - SET BUFFERS
	AH = 18h
	ES:DI -> buffer-pointer structure (see #2560)
Return: nothing
SeeAlso: AH=05h,AH=06h,AH=07h,AH=10h

Format of JM Pro Tracker buffer-pointer structure:
Offset	Size	Description	(Table 2560)
 00h	WORD	length of ??? buffer (see AH=05h)
 02h	DWORD	-> ??? buffer (see AH=05h)
 06h	WORD	length of ??? buffer (see AH=06h)
 08h	DWORD	-> ??? buffer (see AH=06h)
 0Ch	WORD	length of ??? buffer (see AH=07h)
 0Eh	DWORD	-> ??? buffer (see AH=07h)
 12h	WORD	??? (see AH=07h)
 14h	WORD	??? (see AH=10h) (subfunction 01h)
 16h	WORD	??? (see AH=10h) (subfunction 01h)
 18h	WORD	??? (see AH=10h) (subfunction 00h)
 1Ah	WORD	??? (see AH=10h) (subfunction 01h)
--------r-84---------------------------------
INT 84 - reserved for BASIC
SeeAlso: INT 83"BASIC",INT 85"BASIC"
--------r-85---------------------------------
INT 85 - reserved for BASIC
Note:	INT 80 through INT ED are modified but not restored by Direct Access
	  v4.0, and may be left dangling by other programs written with the
	  same version of compiled BASIC
SeeAlso: INT 84"BASIC",INT 86"BASIC"
--------N-86---------------------------------
INT 86 - NetBIOS - ORIGINAL INT 18
Note:	some implementations of NetBIOS reportedly relocate INT 18 here
SeeAlso: INT 18
--------r-86---------------------------------
INT 86 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 85"BASIC",INT 87"BASIC"
--------r-86---------------------------------
INT 86 - APL*PLUS/PC - Terminate APL session and return to DOS
SeeAlso: INT 21/AH=4Ch,INT 87"APL"
--------r-87---------------------------------
INT 87 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 86"BASIC",INT 88"BASIC"
--------r-87---------------------------------
INT 87 - APL*PLUS/PC - ???
SeeAlso: INT 86"APL",INT 88/AL=00h
--------v-87---------------------------------
INT 87 - VIRUS - "ZeroHunt" - VIRAL CODE (NOT A VECTOR!)
Note:	the ZeroHunt virus copies its resident code down to 0000h:021Ch and
	  following
SeeAlso: INT 8B"VIRUS"
--------r-88---------------------------------
INT 88 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 87"BASIC",INT 89"BASIC"
--------r-88--00-----------------------------
INT 88 - APL*PLUS/PC - CREATE OBJECT OF ARBITRARY RANK OR SHAPE
	AL = 00h
	BX = STPTR of the variable to be assigned
	ES:SI -> model of type, rank, and shape (see #2561)
Return: ES:DI -> first data byte of object
	DX:CX = number of elements in the object
SeeAlso: INT C8"APL"

Format of APL*PLUS/PC shape model:
Offset	Size	Description	(Table 2561)
 00h	BYTE	type
		01h character (2-byte dimension sizes)
		02h integer (2-byte dimension sizes)
		08h floating point (2-byte dimension sizes)
		11h character (4-byte dimension sizes)
		12h integer (4-byte dimension sizes)
		18h floating point (4-byte dimension sizes)
 01h	BYTE	rank
 02h	(D)WORD first dimension of shape
 N	(D)WORD second dimension of shape
	...
--------r-88--01-----------------------------
INT 88 - APL*PLUS/PC - CREATE CHARACTER SCALAR/VECTOR/MATRIX <64k in="" size="" al="01h" ah="rank" bx="STPTR" of="" the="" variable="" to="" be="" assigned="" cx="first" dimension="" (if="" any)="" dx="second" dimension="" (if="" any)="" return:="" es:di="" -=""> object
	CX = number of elements in the object
Note:	each dimension must be 32767 or smaller
SeeAlso: AL=02h,AL=08h,INT C8"APL"
--------r-88--02-----------------------------
INT 88 - APL*PLUS/PC - CREATE INTEGER SCALAR/VECTOR/MATRIX <64k in="" size="" al="02h" ah="rank" bx="STPTR" of="" the="" variable="" to="" be="" assigned="" cx="first" dimension="" (if="" any)="" dx="second" dimension="" (if="" any)="" return:="" es:di="" -=""> object
	CX = number of elements in the object
Note:	each dimension must be 32767 or smaller
SeeAlso: AL=01h,AL=08h,INT C8"APL"
--------r-88--08-----------------------------
INT 88 - APL*PLUS/PC - CREATE FLOATING POINT SCALAR/VECTOR/MATRIX <64k in="" size="" al="08h" ah="rank" bx="STPTR" of="" the="" variable="" to="" be="" assigned="" cx="first" dimension="" (if="" any)="" dx="second" dimension="" (if="" any)="" return:="" es:di="" -=""> object
	CX = number of elements in the object
Note:	each dimension must be 32767 or smaller
SeeAlso: AL=01h,AL=02h,INT C8"APL"
--------r-88--F5-----------------------------
INT 88 - APL*PLUS/PC - FORCE OBJECT INTO REAL WORKSPACE FROM VIRTUAL
	AL = F5h
	BX = STPTR of object
SeeAlso: INT C8"APL"
--------r-88--F6-----------------------------
INT 88 - APL*PLUS/PC - MAKE NAME IMMUNE FROM OUTSWAPPING
	AL = F6h
	BX = STPTR of object
SeeAlso: AL=F7h,AL=F8h,INT C8"APL"
--------r-88--F7-----------------------------
INT 88 - APL*PLUS/PC - MAKE NAME ELIGIBLE FOR OUTSWAPPING
	AL = F7h
	BX = STPTR of object
SeeAlso: AL=F6h,AL=F8h,INT C8"APL"
--------r-88--F8-----------------------------
INT 88 - APL*PLUS/PC - REPORT WHETHER NAME IS ELIGIBLE FOR OUTSWAPPING
	AL = F8h
	BX = STPTR of object
Return: BX = name's outswapping status
	    0000h eligible
	    0001h not eligible
SeeAlso: AL=F6h,AL=F7h,INT C8"APL"
--------r-88--F9-----------------------------
INT 88 - APL*PLUS/PC - DETERMINE NAME STATUS
	AL = F9h
	ES:SI -> name
	CX = length of name
Return: CF set if name ill-formed or already in use
	    BX = STPTR if already in symbol table
	CF clear if name is available for use
	    BX = 0000h
Note:	does not force the name into the workspace
SeeAlso: AL=FEh,AL=FFh,INT C8"APL"
--------r-88--FC-----------------------------
INT 88 - APL*PLUS/PC - DETERMINE IF MEMORY AVAIL WITHOUT GARBAGE COLLECTION
	AL = FCh
	BX = amount of memory needed (paragraphs)
Return: CF clear if memory available
	CF set if a workspace compaction is required
SeeAlso: AL=FDh,INT C8"APL"
--------r-88--FD-----------------------------
INT 88 - APL*PLUS/PC - PERFORM GARBAGE COLLECTION AND RETURN AVAILABLE MEMORY
	AL = FDh
Return: BX = number of paragraphs available in workspace
SeeAlso: AL=FCh,INT C8"APL"
--------r-88--FE-----------------------------
INT 88 - APL*PLUS/PC - CREATE NAME
	AL = FEh
	ES:SI -> name
	CX = length of name
Return: BX = STPTR of name
	DX = interpreter's data segment
SeeAlso: AL=F9h,AL=FFh,INT C8"APL"
--------r-88--FF-----------------------------
INT 88 - APL*PLUS/PC - DETERMINE NAME STATUS
	AL = FFh
	ES:SI -> name
	CX = length of name
Return: CF set if name ill-formed or already in use
	    BX = STPTR if already in symbol table
	CF clear if name is available for use
	    BX = 0000h
Note:	forces the name into the workspace and makes it immune from outswapping
SeeAlso: AL=F9h,AL=FEh,INT C8"APL"
--------r-89---------------------------------
INT 89 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 88"BASIC",INT 8A"BASIC"
--------r-8A---------------------------------
INT 8A - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 89"BASIC",INT 8B"BASIC"
--------r-8A---------------------------------
INT 8A - APL*PLUS/PC - PRINT SCREEN
Note:	same as INT 05
SeeAlso: INT 05,INT 8C"APL",INT CA"APL"
--------r-8B---------------------------------
INT 8B - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 8A"BASIC",INT 8C"BASIC"
--------r-8B---------------------------------
INT 8B - APL*PLUS/PC - BEEP
Note:	same as printing a ^G via INT 21/AH=02h
SeeAlso: INT 21/AH=02h,INT CB"APL"
--------v-8B---------------------------------
INT 8B - VIRUS - "ZeroHunt" - INSTALLATION CHECK (NOT A VECTOR!)
Note:	if the ZeroHunt virus is resident, this vector will contain either
	  EE83h:019Bh (ZH-411) or EE83h:019Fh (ZH-415)
SeeAlso: INT 70"VIRUS",INT 87"VIRUS",INT 9C"VIRUS"
--------r-8C---------------------------------
INT 8C - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-8C---------------------------------
INT 8C - APL*PLUS/PC - CLEAR SCREEN MEMORY
	AX = flag
	    0000h do not save display attributes
	    0001h save attributes
SeeAlso: INT CC"APL"
--------r-8D---------------------------------
INT 8D - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-8E---------------------------------
INT 8E - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-8F---------------------------------
INT 8F - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-90---------------------------------
INT 90 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-90---------------------------------
INT 90 - APL*PLUS/PC - USED BY PORT 10 PRINTER DRIVER
--------r-91---------------------------------
INT 91 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------N-91---------------------------------
INT 91 - IBM TOKEN RING ADAPTER - ???
SeeAlso: INT 81"TOKEN RING",INT 82"TOKEN RING",INT 93"TOKEN RING"
--------r-92---------------------------------
INT 92 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------N-92---------------------------------
INT 92 - Sangoma X.25 INTERFACE PROGRAM
	BX:DX -> control block
SeeAlso: INT 68"Sangoma"
--------e-92E1-------------------------------
INT 92 - Da Vinci eMail Dispatcher INTERFACE
	AH = E1h
	AL = function
	BX = stack count (number of words to push)
	CX:DX -> stack data (in word-reversed order ready to push)
Return: AX = status (see #2562)
Note:	preserves BP, DS, SI, DI; other registers may be destroyed

(Table 2562)
Values for Da Vinci eMail function status:
 0001h	success
 FF97h	"ERS_NOT_AVAILABLE"
 FF99h	"ERS_TOO_MANY_NAMES"
 FF9Ah	"ERS_BAD_NAME_PASSWORD"
 FFE3h	"ERS_NAME_NOT_FOUND"
 FFF8h	"ERS_USE_STRING" (call NetGetError to get error string)
 FFFFh	"ERS_NO_SUCH_FILE"
--------e-92E100-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetInitStart"
	AX = E100h
	BX = size of parameter block in words (000Ah)
	CX:DX -> parameter block (see #2563)
Return: AX = 0001h success
Desc:	this function is used to initialize the dispatcher
SeeAlso: AX=E101h,AX=E103h

Format of Da Vinci eMail "NetInitStart" parameter block:
Offset	Size	Description	(Table 2563)
 00h	WORD	segment of ???
 02h	WORD	offset of ???
 04h	WORD	high part of long ???
 06h	WORD	low part of long ???
 08h	WORD	high part of long ???
 0Ah	WORD	low part of long ???
 0Ch	WORD	high part of long ???
 0Eh	WORD	low part of long ???
 10h	WORD	high part of long ???
 12h	WORD	low part of long ???
--------e-92E101BX0000-----------------------
INT 92 - Da Vinci eMail Dispatcher - "NetInitCheck"
	AX = E101h
	BX = 0000h
	CX:DX ignored
Return: AX = 0001h success
SeeAlso: AX=E100h,AX=E180h
--------e-92E102BX0000-----------------------
INT 92 - Da Vinci eMail Dispatcher - "NetCheckDriver"
	AX = E102h
	BX = 0000h
	CX:DX ignored
Return: AX = 0001h success
Desc:	this function is used to determine if the dispatcher is loaded
SeeAlso: AX=E10Bh,AX=E180h
--------e-92E103BX0000-----------------------
INT 92 - Da Vinci eMail Dispatcher - "NetTerminate"
	AX = E103h
	BX = 0000h
	CX:DX ignored
Return: AX = status (see #2562)
SeeAlso: AX=E100h
--------e-92E104-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetWhereIs"
	AX = E104h
	BX = size of parameter block in words (0006h)
	CX:DX -> parameter block (see #2564)
Return: AX = status (see #2562)
Desc:	this function is used to verify node address for usernames
SeeAlso: AX=E180h

Format of Da Vinci eMail "NetWhereIs" parameter block:
Offset	Size	Description	(Table 2564)
 00h	WORD	segment of node address buffer
 02h	WORD	offset of node address buffer
 04h	WORD	segment of uppercase username
 06h	WORD	offset of uppercase username
 08h	WORD	segment of "DVSEMAIL"
 0Ah	WORD	offset of "DVSEMAIL"
--------e-92E105-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetOpen"
	AX = E105h
	BX = size of parameter block in words (0007h)
	CX:DX -> parameter block (see #2565)
Return: AX = 0000h Error
	AX = handle
Desc:	this function is used to open a submission channel
SeeAlso: AX=E10Ah,AX=E106h,AX=E108h

Format of Da Vinci eMail "NetOpen" parameter block:
Offset	Size	Description	(Table 2565)
 00h	WORD	operation (1 = read, 2 = write)
 02h	WORD	segment of uppercase To: username
 04h	WORD	offset of uppercase To: username
 06h	WORD	segment of "DVSEMAIL"
 08h	WORD	offset of "DVSEMAIL"
 0Ah	WORD	segment of node address
 0Ch	WORD	offset of node address
--------e-92E106BX0004-----------------------
INT 92 - Da Vinci eMail Dispatcher - "NetRead"
	AX = E106h
	BX = 0004h
	CX:DX -> parameter block
Return: AX = 0001h
SeeAlso: AX=E108h
--------e-92E107BX0002-----------------------
INT 92 - Da Vinci eMail Dispatcher - "NetGetError"
	AX = E107h
	BX = 0002h
	CX:DX -> parameter block
Return: AX = 0001h
SeeAlso: AX=E109h,AX=E180h
--------e-92E108-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetWrite"
	AX = E108h
	BX = size of parameter block in words (0004h)
	CX:DX -> parameter block (see #2566)
Return: AX = amount written
Desc:	This function is used to write transactions to the dispatcher.
	  The command block is written first and then another call is used
	  to write the associated data.
SeeAlso: AX=E106h

Format of Da Vinci eMail "NetWrite" parameter block:
Offset	Size	Description	(Table 2566)
 00h	WORD	buffer count (see #2568)
 02h	WORD	segment of command buffer (see #2567)
 04h	WORD	offset of command buffer
 06h	WORD	handle from NetOpen

Format of Da Vinci eMail command buffer:
Offset	Size	Description	(Table 2567)
 00h	BYTE	command
		21h '!' Protocol commands for remote control
		41h 'A' Authorization protocol element
		42h 'B' Return(back) routing information
		    Associated data is the From: username
		43h 'C' Carbon Copy list
		    Associated data is a comma delimitted list of usernames
		44h 'D' Distribution list
		    Associated data is a comma delimitted list of usernames
		45h 'E' Mail end marker
		    No associated data
		48h 'H' Mail message header
		    Associated data is a message header buffer
		4Dh 'M' Mail message
		    Associated data is the body of the message
		4Fh 'O' Object
		50h 'P' Paperclip attachment
		52h 'R' Routing information
		    Associated data is the To: username
		53h 'S' Subject
		    Associated data is the subject of the message
		54h 'T' Trail of Reply/Forwards
 01h	BYTE	subcommand
 02h	DWORD	length of associated data

Format of Da Vinci eMail message header buffer:
Offset	Size	Description	(Table 2568)
 00h 30 BYTEs	subject line
 1Eh 24 BYTEs	To
 36h 24 BYTEs	From
 4Eh	DWORD	Time
		BYTE	00h
		BYTE	hour
		BYTE	minute
		BYTE	second
 52h	DWORD	Date
		BYTE	00h
		BYTE	year
		BYTE	month
		BYTE	day
 56h	DWORD	serial number (00000000h)
 5Ah	WORD	mail types (see #2569)
 5Ch	WORD	special types (0)

Bitfields for Da Vinci eMail mail types:
Bit(s)	Description	(Table 2569)
 7	blind carbon copy
 6	carbon copy
 5	priority
 4	confidential
 3	certified
 2	bulk
 1-0	class (first, second, third, bulk)
--------e-92E109-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetErrorFix" (UNUSED)
	AX = E109h
	BX = size of parameter block in words (0001h)
	CX:DX -> parameter block (see #2570)
Return: AX = FF97h (ERS_NOT_AVAILABLE)
SeeAlso: AX=E107h,AX=E180h

Format of Da Vinci eMail "NetErrorFix" parameter block:
Offset	Size	Description	(Table 2570)
 00h	WORD	???
--------e-92E10A-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetClose"
	AX = E10Ah
	BX = size of parameter block in words (0001h)
	CX:DX -> parameter block (see #2571)
Return: AX = 0001h
Desc:	this function is used to close a dispatcher handle
SeeAlso: AX=E105h

Format of Da Vinci eMail "NetClose" parameter block:
Offset	Size	Description	(Table 2571)
 00h	WORD	handle from NetOpen
--------e-92E10B-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetCheckQueue"
	AX = E10Bh
	BX = size of parameter block in words (0004h)
	CX:DX -> parameter block (see #2572)
Return: AX = 0001h
SeeAlso: AX=E102h,AX=E10Ch

Format of Da Vinci eMail "NetCheckQueue" parameter block:
Offset	Size	Description	(Table 2572)
 00h	WORD	segment of 24-byte username buffer
 02h	WORD	offset of 24-byte username buffer
 04h	WORD	segment of 24-byte protocol buffer
 06h	WORD	offset of 24-byte protocol buffer
--------e-92E10C-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetReadQueue"
	AX = E10Ch
	BX = size of parameter block in words (0002h)
	CX:DX -> parameter block (see #2573)
Return: AX = 0001h
SeeAlso: AX=E10Bh

Format of Da Vinci eMail "NetReadQueue" parameter block:
Offset	Size	Description	(Table 2573)
 00h	WORD	Segment of 128 byte node address buffer
 02h	WORD	Offset of 128 byte node address buffer
--------e-92E10D-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetSubmitName"
	AX = E10Dh
	BX = size of parameter block in words (0006h)
	CX:DX -> parameter block (see #2574)
Return: AX = status (see #2562)
Desc:	this function is used to verify username/password
SeeAlso: AX=E10Eh

Format of Da Vinci eMail "NetSubmitName" parameter block:
Offset	Size	Description	(Table 2574)
 00h	WORD	segment of uppercase password string
 02h	WORD	offset of uppercase password string
 04h	WORD	segment of uppercase username string
 06h	WORD	offset of uppercase username string
 08h	WORD	segment of "DVSEMAIL"
 0Ah	WORD	offset of "DVSEMAIL"
--------e-92E10E-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetRemoveName"
	AX = E10Eh
	BX = size of parameter block in words (0004h)
	CX:DX -> parameter block (see #2575)
Return: AX = 0001h
Desc:	this function is used to remove a username
SeeAlso: AX=E10Dh

Format of Da Vinci eMail "NetRemoveName" parameter block:
Offset	Type	Description	(Table 2575)
 00h	WORD	segment of uppercase username
 02h	WORD	offset of uppercase username
 04h	WORD	segment of "DVSEMAIL"
 06h	WORD	offset of "DVSEMAIL"
--------e-92E10FBX0000-----------------------
INT 92 - Da Vinci eMail Dispatcher - IS ANYONE THERE? QUERY
	AX = E10Fh
	BX = 0000h
	CX:DX ignored
Return: AX = 0001h
SeeAlso: AX=E180h
--------e-92E110-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetGetAltRoute"
	AX = E110h
	BX = size of parameter block in words (0006h)
	CX:DX -> parameter block (see #2576)
Return: AX = 0001h
SeeAlso: AX=E111h,AX=E113h

Format of Da Vinci eMail "NetGetAltRoute" parameter block:
Offset	Size	Description	(Table 2576)
 00h  6 WORDs	???
--------e-92E111-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetDeleteAltRoutes"
	AX = E111h
	BX = size of parameter block in words (0004h)
	CX:DX -> parameter block (see #2577)
Return: AX = 0001h
SeeAlso: AX=E110h,AX=E113h

Format of Da Vinci eMail "NetDeleteAltRoutes" parameter block:
Offset	Size	Description	(Table 2577)
 00h  4 WORDs	???
--------e-92E112-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetChangePassword"
	AX = E112h
	BX = size of parameter block in words (0008h)
	CX:DX -> parameter block (see #2578)
Return: AX = 0001h
SeeAlso: AX=E180h

Format of Da Vinci eMail "NetChangePassword" parameter block:
Offset	Size	Description	(Table 2578)
 00h  8 WORDs	???
--------e-92E113-----------------------------
INT 92 - Da Vinci eMail Dispatcher - "NetSetAltRoute"
	AX = E113h
	BX = size of parameter block in words (0008h)
	CX:DX -> parameter block (see #2579)
Return: AX = 0001h
SeeAlso: AX=E110h,AX=E111h

Format of Da Vinci eMail "NetSetAltRoute" parameter block:
Offset	Size	Description	(Table 2579)
 00h  8 WORDs	???
--------e-92E175-----------------------------
INT 92 - Da Vinci eMail Dispatcher - BECOME MICRO TSR
	AX = E175h
Return: AX = 0012h
	BX = PSP
SeeAlso: AX=E180h
--------e-92E180-----------------------------
INT 92 - Da Vinci eMail Dispatcher - INSTALLATION CHECK
	AX = E180h
Return: AX = 0012h if installed
	ES:DX -> '$'-terminated driver information string
SeeAlso: AX=E102h,AX=E105h,AX=E10Fh,AX=E175h
--------r-93---------------------------------
INT 93 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------N-93---------------------------------
INT 93 - IBM TOKEN RING ADAPTER - ???
SeeAlso: INT 81"TOKEN RING",INT 91"TOKEN RING"
--------r-94---------------------------------
INT 94 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------s-94----SI0000-----------------------
INT 94 u - PCM driver - INITIALIZE SOUND
	SI = 0000h
	ES:BX -> parameters
Return: ???
Program: PCM.COM is a sound driver for Media Vision's Pro Audio Spectrum
	  sound boards
Note:	the installation check consists of testing for the signature string
	  "PCMDRIVER" immediately preceding the interrupt handler; the word
	  preceding the signature gives the PCM driver's version
SeeAlso: SI=0001h,SI=0002h,SI=0003h,SI=0004h,SI=0005h,SI=000Ah
Index:	installation check;PCM driver|PCM.COM;installation check
Index:	PCM driver;installation check
--------s-94----SI0001-----------------------
INT 94 u - PCM driver - INITIALIZE PCM
	SI = 0001h
	ES:BX -> parameters
Return: ???
SeeAlso: SI=0000h,SI=0002h,SI=0003h,SI=000Ah
--------s-94----SI0002-----------------------
INT 94 u - PCM driver - INITIALIZE PCM INFO
	SI = 0002h
	ES:BX -> parameters (see #2580)
Return: ???
SeeAlso: SI=0000h,SI=0001h,SI=0003h,SI=000Ah

Format of PCM driver function 0002h parameters:
Offset	Size	Description	(Table 2580)
 00h	DWORD	rate
 04h	WORD	channel number
 06h	WORD	"comp"
 08h	WORD	"dsize"
--------s-94----SI0003-----------------------
INT 94 u - PCM driver - INITIALIZE DMA BUFFER
	SI = 0003h
	ES:BX -> parameters (see #2581)
Return: ???
SeeAlso: SI=0000h,SI=000Ah,SI=000Bh

Format of PCM driver function 0003h parameters:
Offset	Size	Description	(Table 2581)
 00h	DWORD	-> DMA buffer
 04h	WORD	size of DMA buffer
 06h	WORD	number of divisions
--------s-94----SI0004-----------------------
INT 94 u - PCM driver - INITIALIZE USER FUNCTION
	SI = 0004h
	ES:BX -> parameters (see #2582)
Return: ???
SeeAlso: SI=0000h,SI=0001h

Format of PCM driver function 0004h parameters:
Offset	Size	Description	(Table 2582)
 00h	DWORD	-> user function
--------s-94----SI0005-----------------------
INT 94 u - PCM driver - BEGIN AUDIO PLAY
	SI = 0005h
Return: ???
SeeAlso: SI=0000h,SI=0006h,SI=0007h,SI=0009h
--------s-94----SI0006-----------------------
INT 94 u - PCM driver - BEGIN AUDIO RECORD
	SI = 0006h
Return: ???
SeeAlso: SI=0005h,SI=0007h,SI=0009h
--------s-94----SI0007-----------------------
INT 94 u - PCM driver - PAUSE AUDIO PLAY/RECORD
	SI = 0007h
Return: ???
SeeAlso: SI=0005h,SI=0006h,SI=0008h
--------s-94----SI0008-----------------------
INT 94 u - PCM driver - RESUME AUDIO PLAY/RECORD
	SI = 0008h
Return: ???
SeeAlso: SI=0007h
--------s-94----SI0009-----------------------
INT 94 u - PCM driver - STOP AUDIO PLAY/RECORD
	SI = 0009h
Return: ???
SeeAlso: SI=0005h,SI=0006h,SI=0007h
--------s-94----SI000A-----------------------
INT 94 u - PCM driver - UNHOOK INTERRUPTS AND TURN OFF DMA
	SI = 000Ah
Return: ???
SeeAlso: SI=0000h,SI=0001h,SI=0003h
Index:	uninstall;PCM driver
--------s-94----SI000B-----------------------
INT 94 u - PCM driver - FIND VALID DMA BUFFER IN HUGE MEMORY BLOCK
	SI = 000Bh
	ES:BX -> parameters (see #2583)
Return: ???
SeeAlso: SI=0003h

Format of PCM driver functio 000Bh parameters:
Offset	Size	Description	(Table 2583)
 00h	DWORD	-> memory block to contain DMA buffer
 04h	WORD	desired size of DMA buffer
--------s-94----SI000D-----------------------
INT 94 u - Media Vision PCM.COM - GET STATUS
	SI = 000Dh
Return: AX = status (0000h = waiting) (see #2584)

Bitfields for PCM.COM status:
Bit(s)	Description	(Table 2584)
 0	playing
 1	recording
 2	SBplaying
 3	SBrecording
 14	SBpaused
 15	paused
--------s-94----SI8000-----------------------
INT 94 u - Media Vision PCM.COM - GET INTERNAL DMA BUFFER ADDRESS
	SI = 8000h
Return: DX:AX -> DMA buffer
Program: PCM.COM is a superset of the standard PCM driver which provides
	  additional functions for fine control of the driver
Note:	the installation check for the Media Vision PCM.COM "shark" functions
	  consists of testing for the signature "PCM-SHARK" at offset 107h in
	  the INT 94 handler's segment
SeeAlso: SI=8001h,SI=8004h
Index:	installation check;Media Vision PCM.COM|PCM.COM;installation check
Index:	Media Vision PCM.COM;"shark" functions
--------s-94----SI8001-----------------------
INT 94 u - Media Vision PCM.COM - GET INTERNAL DMA BUFFER SIZE AND DIVISIONS
	SI = 8001h
Return: AX = DMA buffer size
	DX = divisions
SeeAlso: SI=8000h
--------s-94----SI8002-----------------------
INT 94 u - Media Vision PCM.COM - CHECK BOARD ADDRESS
	SI = 8002h
Return: AX = status
	    0000h if board not at specified I/O address
	    other if board found
Note:	the I/O address is specified by ORing the base I/O port shifted left
	  four bits into SI before calling INT 94
SeeAlso: SI=8000h
--------s-94----SI8004-----------------------
INT 94 u - Media Vision PCM.COM - GET INTERNAL NOTE BUFFER
	SI = 8004h
Return: AX = offset of note buffer (segment = segment of internal DMA buffer)
	DX = size of buffer in note structures
SeeAlso: SI=8000h
--------s-94----SI8005-----------------------
INT 94 u - Media Vision PCM.COM - SINGLE-STEP QUEUE
	SI = 8005h
Return: ???
--------s-94----SI8011-----------------------
INT 94 u - Media Vision PCM.COM - INITIALIZE
	SI = 8011h
	ES:BX -> "iobf91" structure
Return: ???
--------s-94----SI8012-----------------------
INT 94 u - Media Vision PCM.COM - LOAD SOUND FOR LATER PLAY THROUGH KEYBOARD
	SI = 8012h
	ES:BX -> "i94f92buf" structure
Return: ???
SeeAlso: SI=8013h,SI=8014h
--------s-94----SI8013-----------------------
INT 94 u - Media Vision PCM.COM - GET INTERNAL SOUND USAGE
	SI = 8013h
Return: AX = number of sounds used
	DX = maximum handles
--------s-94----SI8014-----------------------
INT 94 u - Media Vision PCM.COM - GET DATA FOR SPECIFIED SOUND
	SI = 8014h
	ES:BX -> "i94f92buf" structure to be filled in
		sound number field set to desired sound
Return: AX = status
	    0000h successful
	    FFFFh sound number out of range
SeeAlso: SI=8012h,SI=8013h
--------s-94----SI8015-----------------------
INT 94 u - Media Vision PCM.COM - GET/SET INTERNAL DMA BUFFER
	SI = 8015h
	ES:BX -> DMA info structure (see #2585)
Return: ???

Format of PCM.COM DMA info structure:
Offset	Size	Description	(Table 2585)
 00h	DWORD	-> DMA buffer (offset FFFFh = return current buffer info)
 04h	WORD	DMA buffer size
 06h	WORD	divisions
--------s-94----SI8016-----------------------
INT 94 u - Media Vision PCM.COM - SIMULATE DOUBLE-SHIFT HOTKEY
	SI = 8016h
	AX = hotkey number (01h-08h)
Return: ???
SeeAlso: AL=02h/SI=8017h
--------s-94--01SI8017-----------------------
INT 94 u - Media Vision PCM.COM - CTRL-G INTERCEPT
	AL = 01h
	SI = 8017h
	AH = new state (00h off, 01h on)
Return: ???
SeeAlso: AL=02h/SI=8017h
--------s-94--02SI8017-----------------------
INT 94 u - Media Vision PCM.COM - DOUBLE-SHIFT-HOTKEY SOUND FEATURE
	AL = 02h
	SI = 8017h
	AH = new state (00h off, 01h on)
Return: ???
--------s-94--04SI8017-----------------------
INT 94 u - Media Vision PCM.COM - RANDOM SOUND FEATURE
	AL = 04h
	SI = 8017h
	AH = new state
	    00h off
	    01h on
		CX = minimum delay
		DX = maximum delay
Return: ???
--------s-94--08SI8017-----------------------
INT 94 u - Media Vision PCM.COM - NO ACTIVITY FEATURE
	AL = 08h
	SI = 8017h
	AH = new state
	    00h off
	    01h on
		DX:CX = delay
Return: ???
SeeAlso: AL=10h/SI=8017h
--------s-94--10SI8017-----------------------
INT 94 u - Media Vision PCM.COM - TIMER CONTROL
	AL = 10h
	SI = 8017h
	AH = timer options (see #2586)
	DX:CX = delay if AH bit 7 set (one-shot if DX bit 15 set)
Return: ???
SeeAlso: AL=08h/SI=8017h

Bitfields for PCM.COM timer options:
Bit(s)	Description	(Table 2586)
 7	set timer
 6	timer active (timer turned off if clear)
 5-0	timer number
--------s-94----SI8018-----------------------
INT 94 u - Media Vision PCM.COM - GET INFO
	SI = 8018h
	AL = what to get
	    00h "F92state"
	    01h "F92bkgd"
	    02h "I10timer"
	    03h "I08state"
Return: DX:AX -> desired information
--------r-95---------------------------------
INT 95 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-95---------------------------------
INT 95 - APL*PLUS/PC - DETERMINE R= SPACE
Note:	use only when the R= option is invoked on entering APL
--------r-96---------------------------------
INT 96 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-97---------------------------------
INT 97 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-98---------------------------------
INT 98 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-99---------------------------------
INT 99 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-9A---------------------------------
INT 9A - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 99,INT 9B
--------r-9B---------------------------------
INT 9B - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 9A,INT 9C"BASIC"
--------r-9C---------------------------------
INT 9C - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 9B,INT 9D"BASIC"
--------v-9C---------------------------------
INT 9C - VIRUS - "INT13" - ORIGINAL INT 13h VECTOR
SeeAlso: INT 8B"VIRUS",INT 9D"VIRUS",INT 9E"VIRUS",INT 9F"VIRUS"
--------r-9D---------------------------------
INT 9D - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 9C"BASIC",INT 9E"BASIC"
--------v-9D---------------------------------
INT 9D - VIRUS - "INT13" - ROM INT 13h ENTRY POINT
Note:	this vector is used by the virus to store the result of a call to
	  INT 2F/AH=13h
SeeAlso: INT 2F/AH=13h,INT 9C"VIRUS",INT 9E"VIRUS",INT 9F"VIRUS"
--------r-9E---------------------------------
INT 9E - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 9D"BASIC",INT 9F"BASIC"
--------v-9E---------------------------------
INT 9E - VIRUS - "INT13" - ORIGINAL INT 21h VECTOR
SeeAlso: INT 70"VIRUS",INT 9C"VIRUS",INT 9D"VIRUS",INT E0"VIRUS"
--------r-9F---------------------------------
INT 9F - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 9D"BASIC",INT A0"BASIC"
--------v-9F---------------------------------
INT 9F - VIRUS - "INT13" - STORAGE FOR USER INT 13h VECTOR
Note:	while it is infecting a file, the INT13 virus grabs INT 13 and uses
	  this interrupt to store the existing INT 13 vector for later
	  restoration
SeeAlso: INT 9C"VIRUS",INT 9D"VIRUS",INT D3"VIRUS"
--------r-A0---------------------------------
INT A0 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT 9F"BASIC",INT A1"BASIC"
--------r-A0---------------------------------
INT A0 - APL*PLUS/PC - USED BY APL/GSS*CGI GRAPHICS INTERFACE
SeeAlso: INT 59
--------r-A1---------------------------------
INT A1 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT A0"BASIC",INT A2"BASIC"
--------r-A2---------------------------------
INT A2 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT A1"BASIC",INT A3"BASIC"
--------r-A3---------------------------------
INT A3 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT A2"BASIC",INT A4"BASIC"
--------r-A4---------------------------------
INT A4 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT A3"BASIC",INT A5"BASIC"
--------U-A4---------------------------------
INT A4 U - Right Hand Man - API
	AH = function number (v3.3 supports functions 00h-52h)
Return: CF set on error
	CF clear if successful
Program: Right Hand Man is a TSR desk-top utility originally by Red E Products
	  which has evolved into Futurus Team
Note:	this interrupt is only hooked while popped up
SeeAlso: INT 2F/AX=A4E0h
--------r-A5---------------------------------
INT A5 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT A4"BASIC",INT A6"BASIC"
--------r-A6---------------------------------
INT A6 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT A5"BASIC",INT A7"BASIC"
--------r-A7---------------------------------
INT A7 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-A8---------------------------------
INT A8 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-A9---------------------------------
INT A9 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-AA---------------------------------
INT AA - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-AB---------------------------------
INT AB - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-AC---------------------------------
INT AC - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-AD---------------------------------
INT AD - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-AE---------------------------------
INT AE - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-AF---------------------------------
INT AF - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-B0---------------------------------
INT B0 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-B1---------------------------------
INT B1 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-B2---------------------------------
INT B2 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-B3---------------------------------
INT B3 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------U-B370-------------------------------
INT B3 - ZIPKEY - GET VERSION
	AH = 70h
Return: AH = major version
	AL = minor version
	CL = number of states and territories in current database
	DH = year of current database - 1900
	DL = month of current database's file date
Program: ZIPKEY is a resident ZIPCODE database by Eric Isaacson
Note:	if installed, the string "ZIPKEY" is present at offset 75h in the
	  interrupt handler's segment, and the byte at 7Bh contains the API
	  version number (00h for v1.x, 01h for v2.0)
--------U-B371-------------------------------
INT B3 - ZIPKEY - CONVERT TWO-LETTER ABBREVIATION TO STATE CODE
	AH = 71h
	BX = abbreviation, in either case (first letter in BL)
Return: CF set on error
	    AL = FFh
	CF clear if successful
		 AL = ZIPKEY state code
SeeAlso: AH=72h
--------U-B372-------------------------------
INT B3 - ZIPKEY - CONVERT STATE CODE TO TWO-LETTER ABBREVIATION
	AH = 72h
	BL = ZIPKEY state code
Return: CF set on error
	    AX destroyed
	CF clear if successful
	    AX = abbreviation, in upper case
SeeAlso: AH=71h,AH=73h
--------U-B373-------------------------------
INT B3 - ZIPKEY - CONVERT STATE CODE TO STATE NAME
	AH = 73h
	BL = ZIPKEY state code
	ES:DI -> buffer for name
Return: CF set on error
	    AX destroyed
	CF clear if successful
	    ES:DI points one byte beyond end of name
SeeAlso: AH=72h
--------U-B374-------------------------------
INT B3 - ZIPKEY - CONVERT ZIPCODE TO ASCII DIGITS
	AH = 74h
	DX = zipcode region (0-999)
	CH = last two digits of zipcode (0-99)
	ES:DI -> buffer
Return: CF set on error
	    AX destroyed
	CF clear if successful
	    ES:DI points one byte beyond end of digit string
--------U-B375-------------------------------
INT B3 - ZIPKEY - LOOK UP STATE CODE FOR ZIPCODE
	AH = 75h
	DX = zipcode region (0-999)
	CH = last two digits of zipcode (0-99)
Return: CF set on error (zipcode not found)
	    AL = suggested state code, FFh if none
	CF clear if successful
	    AL = ZIPKEY state code
	    BX = area code (v2.0+)
SeeAlso: AH=76h,AH=79h
--------U-B376-------------------------------
INT B3 - ZIPKEY - LOOK UP CITY AND STATE FOR ZIPCODE
	AH = 76h
	DX = zipcode region (0-999)
	CH = last two digits of zipcode (0-99)
	ES:DI -> buffer for name
Return: CF set on error
	    AL = suggested state code, FFh if none
	    ES:DI buffer filled with suggested city name
	CF clear if successful
	    AL = ZIPKEY state code
	    BX = area code (v2.0+)
	    ES:DI points one byte beyond end of name
SeeAlso: AH=75h,AH=78h,AH=7Eh
--------U-B377-------------------------------
INT B3 - ZIPKEY - PLAY BACK EXIT KEY FOR ENTRY WITH GIVEN ZIPCODE
	AH = 77h
	DX = zipcode region (0-999)
	CH = last two digits of zipcode (0-99)
	BX = 16-bit BIOS keycode for a defined ZIPKEY alternate exit key
Return: CF set on error
	    AX destroyed
	CF clear if successful
	    zipcode specification as defined by the BX keystroke is placed in
	      keyboard buffer, as if the user had popped up ZIPKEY and exited
	      by pressing the key specified by BX
--------U-B378-------------------------------
INT B3 - ZIPKEY - LOOK UP ZIPCODES FOR A GIVEN STATE AND CITY
	AH = 78h
	BL = ZIPKEY state code
	DS:SI -> city name, terminated with 0Dh if complete name, 00h if prefix
Return: BH = number of matching entries (set to 51 if more than 50)
	DX = zipcode region of first match (0-999)
	CL = last two digits of first zipcode in the range (0-99)
	CH = last two digits of last zipcode in the range (0-99)
	AX destroyed
SeeAlso: AH=79h,AH=7Ah
--------U-B379-------------------------------
INT B3 - ZIPKEY - LOOK UP ZIPCODES FOR A GIVEN CITY
	AH = 79h
	BL = ZIPKEY state code of first state to search
	DS:SI -> city name, terminated with 0Dh if complete name, 00h if prefix
Return: AL = ZIPKEY state code of first matching state
	BH = number of matching entries (set to 51 if more than 50)
	DX = zipcode region of first match (0-999)
	CL = last two digits of first zipcode in first range (0-99)
	CH = last two digits of last zipcode in first range (0-99)
Note:	to find all matching cities, repeat search with BL set to one more than
	  the returned AL
SeeAlso: AH=78h,AH=7Ah
--------U-B37A-------------------------------
INT B3 - ZIPKEY - FETCH AN ENTRY FROM A PREVIOUS LOOKUP
	AH = 7Ah
	BL = case number (0 to one less than value returned in BH by lookup)
Return: AL = ZIPKEY state code
	DX = zipcode region (0-999)
	CL = last two digits of first zipcode in the range (0-99)
	CH = last two digits of last zipcode in the range (0-99)
SeeAlso: AH=78h,AH=79h
--------U-B37B-------------------------------
INT B3 - ZIPKEY - GET VALUES NEEDED TO SAVE ZIPKEY CONTEXT
	AH = 7Bh
Return: BL = maximum number of characters for a city name
	BH = ZIPKEY state code for last city-name search, or FFh if none
	CX:DX = internal code identifying last city search
	AX destroyed
SeeAlso: AH=7Ch
--------U-B37C-------------------------------
INT B3 - ZIPKEY - RESTORE ZIPKEY CONTEXT
	AH = 7Ch
	BL = maximum number of characters for a city name
	BH = ZIPKEY state code for last city-name search, or FFh if none
	CX:DX = internal code returned by AH=7Bh
Return: CF set on error
	CF clear if successful
	AX destroyed
SeeAlso: AH=7Bh
--------U-B37D-------------------------------
INT B3 - ZIPKEY - REQUEST POP UP
	AH = 7Dh
	BL = index number to simulate pressing a hotkey
	    FFh for immediate popup with no playback on return
Return: CF set on error
	    AL = error code
		FDh already busy with another request
		FEh illegal function
	CF clear if successful
	    AX destroyed
	    window popped up and was closed by the user
SeeAlso: AH=70h
--------U-B37E-------------------------------
INT B3 - ZIPKEY - GET NAME OF PRIMARY CITY FOR A ZIPCODE REGION
	AH = 7Eh
	DX = zipcode region (0-999)
	ES:DI -> buffer for name
Return: CF set on error
		 AL = FFh region does not exist
	CF clear if successful
	    AL = ZIPKEY state code
	    ES:DI points one byte beyond end of name
SeeAlso: AH=76h
--------U-B37F-------------------------------
INT B3 - ZIPKEY - ENABLE/DISABLE HOTKEYS
	AH = 7Fh
	BL = function
	    00h turn off hotkeys
	    01h turn on hotkeys
	    02h return hotkey status
	    03h toggle hotkey status
Return: AL = hotkey status
	    00h off
	    01h on
--------U-B380-------------------------------
INT B3 - ZIPKEY v2.0+ - DETERMINE STATE FOR AREA CODE
	AH = 80h
	BX = telephone area code (decimal)
Return: CF clear if successful
	    AL = ZIPKEY state code
	    DX = first ZIP region for state (03E8h if Canada)
		 CX = number of ZIP regions in state
	CF set on error
	    AL = FFh
	    DX = 03E9h
--------r-B4---------------------------------
INT B4 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-B4---------------------------------
INT B4 - StackMan - REQUEST NEW STACK
Return: SS:SP -> new stack
Program: StackMan is a freeware stack manager by Franz Veldman of ESaSS B.V.
	  which functions as a replacement for the DOS STACK= command as well
	  as permitting multiple TSRs to share a pool of stack space
Note:	the installation check consists of testing for the string "STACKXXX" at
	  offset 0Ah from the interrupt handler
SeeAlso: INT 2F/AX=C9FFh,INT B5"STACKMAN"
Index:	installation check;STACKMAN
--------r-B5---------------------------------
INT B5 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT B4"BASIC",INT B6"BASIC"
--------r-B5---------------------------------
INT B5 - StackMan - RESTORE ORIGINAL STACK
	SS:SP -> stack returned by INT B4
Return: SS:SP restored to value before INT B4
SeeAlso: INT 2F/AX=C9FFh,INT B4"StackMan"
--------m-B5---------------------------------
INT B5 U - Netroom NETSWAP4 - ???
	???
Return: ???
SeeAlso: INT 31/AH=57h
--------r-B6---------------------------------
INT B6 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT B5"BASIC",INT B7"BASIC"
--------y-B6---------------------------------
INT B6 - (NOT A VECTOR!) - USED BY TBFENCE
Program: TBFence is a security program by ESaSS B.V. which transparently
	  encrypts floppies and optionally allows only encrypted diskettes to
	  be accessed
Note:	the low word of this vector (0000h:02D8h) contains the segment of the
	  TBFence INT 13h code, which starts with the signature word E487h;
	  this forms the installation check
	the highest byte of this vector contains the start of a FAR JMP
	  instruction to ???
SeeAlso: INT B7"TBFENCE"
Index:	installation check;TBFence
--------r-B7---------------------------------
INT B7 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT B6"BASIC",INT B8"BASIC"
--------y-B7---------------------------------
INT B7 - TBFENCE - ???
SeeAlso: INT B6"TBFENCE"
--------r-B8---------------------------------
INT B8 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT B7"BASIC",INT B9"BASIC"
--------r-B9---------------------------------
INT B9 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-BA---------------------------------
INT BA - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-BB---------------------------------
INT BB - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-BC---------------------------------
INT BC - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-BD---------------------------------
INT BD - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-BE---------------------------------
INT BE - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT BD"BASIC",INT BF"BASIC"
--------Q-BE---------------------------------
INT BE - DESQview/X - ???
Note:	points at an IRET
SeeAlso: INT 15/AX=BFDEh/BX=0006h,INT 63"DESQview"
--------r-BF---------------------------------
INT BF - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT BE"BASIC",INT C0"BASIC"
--------r-C0---------------------------------
INT C0 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT BF"BASIC",INT C1"BASIC"
--------d-C0---------------------------------
INT C0 - AMI BIOS - DRIVE 0 DATA
Note:	this vector is used by some AMI BIOSes to store the first four bytes
	  of the hard disk parameter table
SeeAlso: INT 41,INT 60"Adaptec",INT C1"AMI",INT C2"AMI",INT C3"AMI",INT C4"AMI"
--------r-C1---------------------------------
INT C1 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C0"BASIC",INT C2"BASIC"
--------d-C1---------------------------------
INT C1 - AMI BIOS - DRIVE 0 DATA
Note:	this vector is used by some AMI BIOSes to store the second four bytes
	  of the hard disk parameter table
SeeAlso: INT 41,INT 60"Adaptec",INT C0"AMI",INT C2"AMI",INT C3"AMI"
--------r-C2---------------------------------
INT C2 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C1"BASIC",INT C3"BASIC"
--------d-C2---------------------------------
INT C2 - AMI BIOS - DRIVE 0 DATA
Note:	this vector is used by some AMI BIOSes to store the third four bytes
	  of the hard disk parameter table
SeeAlso: INT 41,INT 60"Adaptec",INT C0"AMI",INT C1"AMI",INT C3"AMI"
--------r-C3---------------------------------
INT C3 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C2"BASIC",INT C4"BASIC"
--------d-C3---------------------------------
INT C3 - AMI BIOS - DRIVE 0 DATA
Note:	this vector is used by some AMI BIOSes to store the final four bytes
	  of the hard disk parameter table
SeeAlso: INT 41,INT 60"Adaptec",INT C0"AMI",INT C1"AMI",INT C2"AMI"
--------r-C4---------------------------------
INT C4 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C3"BASIC",INT C5"BASIC"
--------d-C4---------------------------------
INT C4 - AMI BIOS - DRIVE 1 DATA
Note:	this vector is used by some AMI BIOSes to store the first four bytes
	  of the second hard disk's parameter table
SeeAlso: INT 46,INT 64"Adaptec",INT C0"AMI",INT C5"AMI",INT C6"AMI",INT C7"AMI"
--------r-C5---------------------------------
INT C5 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C4"BASIC",INT C6"BASIC"
--------d-C5---------------------------------
INT C5 - AMI BIOS - DRIVE 1 DATA
Note:	this vector is used by some AMI BIOSes to store the second four bytes
	  of the second hard disk's parameter table
SeeAlso: INT 46,INT 64"Adaptec",INT C0"AMI",INT C4"AMI",INT C6"AMI",INT C7"AMI"
--------r-C6---------------------------------
INT C6 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C5"BASIC",INT C7"BASIC"
--------r-C6---------------------------------
INT C6 - APL*PLUS/PC - IDENTICAL TO INT 86
Note:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
SeeAlso: INT 86"APL"
--------d-C6---------------------------------
INT C6 - AMI BIOS - DRIVE 1 DATA
Note:	this vector is used by some AMI BIOSes to store the third four bytes
	  of the second hard disk's parameter table
SeeAlso: INT 46,INT 64"Adaptec",INT C0"AMI",INT C4"AMI",INT C5"AMI",INT C7"AMI"
--------r-C7---------------------------------
INT C7 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C6"BASIC",INT C8"BASIC"
--------r-C7---------------------------------
INT C7 - APL*PLUS/PC - ???
Note:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
SeeAlso: INT 87"APL"
--------d-C7---------------------------------
INT C7 - AMI BIOS - DRIVE 1 DATA
Note:	this vector is used by some AMI BIOSes to store the final four bytes
	  of the second hard disk's parameter table
SeeAlso: INT 46,INT 64"Adaptec",INT C0"AMI",INT C4"AMI",INT C5"AMI",INT C6"AMI"
--------r-C8---------------------------------
INT C8 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C7"BASIC",INT C9"BASIC"
--------r-C8---------------------------------
INT C8 - APL*PLUS/PC - IDENTICAL TO INT 88
Note:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
SeeAlso: INT 88"APL"
--------r-C9---------------------------------
INT C9 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C8"BASIC",INT CA"BASIC"
--------r-C9---------------------------------
INT C9 - APL*PLUS/PC - ???
Note:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
SeeAlso: INT 89"APL"
--------r-CA---------------------------------
INT CA - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT C9"BASIC",INT CB"BASIC"
--------r-CA---------------------------------
INT CA - APL*PLUS/PC - PRINT SCREEN
Note:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
SeeAlso: INT 8A"APL"
--------r-CB---------------------------------
INT CB - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT CA"BASIC",INT CC"BASIC"
--------r-CB---------------------------------
INT CB - APL*PLUS/PC - BEEP
Notes:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
	same as printing a ^G via INT 21/AH=02h
SeeAlso: INT 8B"APL"
--------r-CC---------------------------------
INT CC - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT CB"BASIC",INT CD"BASIC"
--------r-CC---------------------------------
INT CC - APL*PLUS/PC - CLEAR SCREEN MEMORY
	AX = flag
	    0000h do not save display attributes
	    0001h save attributes
Note:	STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
	  the older interrupts
SeeAlso: INT 8C"APL"
--------r-CD---------------------------------
INT CD - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT CC"BASIC",INT CE"BASIC"
--------r-CD---------------------------------
INT CD - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-CE---------------------------------
INT CE - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT CD"BASIC",INT CF"BASIC"
--------r-CE---------------------------------
INT CE - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-CF---------------------------------
INT CF - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT CE"BASIC",INT D0"BASIC"
--------r-CF---------------------------------
INT CF - APL*PLUS/PC - DEFAULT LOW-RESOLUTION TIMER FOR QUAD MF FUNCTION
SeeAlso: INT E0"APL"
--------r-D0---------------------------------
INT D0 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT CF"BASIC",INT D1"BASIC"
--------r-D0---------------------------------
INT D0 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------U-D0---------------------------------
INT D0 - [not a vector!] - NJFRERAM SIGNATURE VECTOR
Program: NJFRERAM is a resident free-memory display utility by Mike "Nifty
	  James" Blaszczak
Note:	if NJFRERAM is installed, this vector points at the signature "NJ"
Index:	installation check;NJFRERAM
--------r-D1---------------------------------
INT D1 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D0"BASIC",INT D2"BASIC"
--------r-D1---------------------------------
INT D1 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-D2---------------------------------
INT D2 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D1"BASIC",INT D3"BASIC"
--------r-D2---------------------------------
INT D2 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-D3---------------------------------
INT D3 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D2"BASIC",INT D4"BASIC"
--------r-D3---------------------------------
INT D3 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------v-D3---------------------------------
INT D3 - VIRUS - "Antiexe" - RELOCATED INT 13
SeeAlso: INT 9F"VIRUS"
--------r-D4---------------------------------
INT D4 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D3"BASIC",INT D5"BASIC"
--------r-D4---------------------------------
INT D4 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------O-D400-------------------------------
INT D4 O - PC-MOS/386 v5.01 - OBSOLETE FUNCTIONS
	AH = 00h and 01h
Return: nothing
Desc:	PC-MOS/386 v5.01 reports that these functions are no longer supported
	  and enters an endless loop
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
--------O-D402-------------------------------
INT D4 - PC-MOS/386 v3.0+ - GET SYSTEM CONTROL BLOCK POINTER
	AH = 02h
Return: AX = 0000h
	ES:BX -> System Control Block in V86 mode (see #2587)
	ES:EBX -> System Control Block in native mode (see #2587)
Note:	superseded by AH=26h
SeeAlso: AH=04h,AH=10h,AH=26h,AH=28h,AH=29h,AH=2Ah,INT 21/AX=3000h,INT 38

Format of PC-MOS/386 System Control Block:
Offset	Size	Description	(Table 2587)
 00h	WORD	pointer to first TCB in chain
 02h 17 BYTEs	reserved
 13h	WORD	pointer to current task's TCB
 15h	WORD	pointer to TCB of visible (console) task
--------O-D403-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET/SET EXTENDED DIRECTORY INFORMATION
	AH = 03h
	AL = subfunction (00h get, 01h set)
	DS:(E)DX -> pathname
	ES:(E)BX -> 10-byte buffer for directory information (see #2588)
Return: CF clear if successful
	    AL = permitted access level for file (00h-03h)
	    ES:(E)BX -> modified buffer (AL=01h on entry)
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Notes:	BX/DX are used in V86 mode, EBX/EDX in native mode
	the file class cannot be changed for files because it affects the
	  encryption method, but directories can have their classes changed

Format of PC-MOS/386 directory information:
Offset	Size	Description	(Table 2588)
 00h	BYTE	reserved (0)
 01h	BYTE	file class ('A'-'Z' or 00h)
 02h	DWORD	user ID of file creator
 06h	WORD	file creation time (see #0876 at INT 21/AX=5700h)
 08h	WORD	file creation date (see #0877 at INT 21/AX=5700h)
--------O-D404-------------------------------
INT D4 - PC-MOS/386 v3.0+ - GET TASK CONTROL BLOCK
	AH = 04h
	BX = task ID or FFFFh for calling task
Return: CF clear if successful
	    ES = segment of Task Control Block (TCB) (see #2589)
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Note:	superseded by AH=27h
SeeAlso: AH=02h,AH=27h,AH=28h,AH=29h,AH=2Ah,INT 38

Format of PC-MOS/386 Task Control Block:
Offset	Size	Description	(Table 2589)
 00h	BYTE	signature byte "H" if allocated from system memory pool
 01h	BYTE	header block ID, "T" = TCB
 02h	WORD	length of block in paragraphs
 04h	WORD	segment address of next header block (0000h if last)
 06h	WORD	segment address of previous header block (0000h if first)
 08h	WORD	pointer to next TCB
 0Ah	WORD	pointer to previous TCB
 0Ch	WORD	pointer to associated TCB (if applicable)
 0Eh	WORD	reserved
---TCB---
 10h	WORD	TCB task ID
 12h	WORD	native context save area
 14h	WORD	start address of task
 16h	WORD	end address of task
 18h	BYTE	task priority
 19h	BYTE	task time slice
 1Ah	BYTE	"TCBWAIT" run status of task
 1Bh	BYTE	"TCBSTAT" what the task is waiting for
 1Ch	DWORD	address of polling routine
 20h	BYTE	error code from last function call
 21h 11 BYTEs	name of currently executing task
 2Ch  4 BYTEs	???
 30h	BYTE	keyboard disabled if bit 1 set
 31h	BYTE	current shift state and toggles
 32h  2 BYTEs	???
 34h	BYTE	current video mode
 35h	BYTE	current video page
 36h	BYTE	number of text columns per screen
 37h	BYTE	number of text rows per screen
 38h	WORD	length of video buffer
 3Ah	WORD	video page length
 3Ch	WORD	apge start address in video RAM
 3Eh  4 WORDs	current cursor positions for four screen pages
 46h  8 BYTEs	???
 4Eh	WORD	current cursor type
 50h	BYTE	current palette setting
 51h	BYTE	original video mode
 52h	BYTE	start CRT row (00h or 01h)
 53h	BYTE	video RAM in task active
 54h	WORD	handle of video save area
 56h	WORD	page count of video save area
 58h	WORD	segment address of video save area
 5Ah	WORD	poitner to first Task File Block (see #2592)
 5Ch	WORD	pointer to first Current Directory Block (see #2595)
 5Eh	WORD	pointer to active Current Directory Block (see #2595)
 60h	BYTE	number of drives
 61h	BYTE	current drive (0=A:, etc.)
 62h	DWORD	disk transfer address
 66h  4 BYTEs	???
 6Ah	BYTE	verify flag (nonzero = on)
 6Bh	BYTE	break flag (nonzero = on)
 6Ch	WORD	share/lock retry count
 6Eh	WORD	ticks between share/lock retries
 70h	BYTE	remote printer flags (see #2590)
 71h	BYTE	ETX/ACK delay count
 72h	WORD	spooler segment address
 74h  2 BYTEs	???
 76h  3 BYTEs	remote printer redirection for LPT1 through LPT3 (see #2591)
 79h  2 BYTEs	???
 7Bh	DWORD	offset of username in TCB
 7Fh	BYTE	current output class
 80h  7 BYTEs	protection access rights, 2 bits per class (writeable!)
 87h 122 BYTEs	???
101h	BYTE	TCB sleep downcounter value
102h 20 BYTEs	???
116h	BYTE	last scan code
	...
5D0h	DWORD	far pointer to Device Driver Terminal's entry point
5D4h	WORD	offset of logical screen
5D6h	WORD	segment of logical screen
5D8h	WORD	cursor offset within page
5DAh	BYTE	screen columns
5DBh	WORD	async port number (0000h = none)
5DDh	DWORD	physical baudrate
5E1h 19 BYTEs	reserved for Device Driver Terminal (DDT)
	...
7A6h	DWORD	far pointer to unregister calling chain

Bitfields for PC-MOS/386 remote printer flags:
Bit(s)	Description	(Table 2590)
 0	LPT1 to terminal
 1	LPT2 to terminal
 2	LPT3 to terminal
 3	escape to printer pending
 4	use XON/XOFF
 5	use ETX/ACK
 6	waiting for ACK or XON
 7	transparent printing on

(Table 2591)
Values for PC-MOS/386 remote printer redirection:
 00h	not redirected
 01h	redirected to COM1
 ...
 18h	redirected to COM24
 51h	redirected to LPT1
 52h	redirected to LPT2
 53h	redirected to LPT3

Format of PC-MOS/386 Task File Block:
Offset	Size	Description	(Table 2592)
 00h	BYTE	signature byte "H" if allocated from system memory pool
 01h	BYTE	header block ID, "F" = task file block
 02h	WORD	length of block in paragraphs
 04h	WORD	segment address of next header block (0000h if last)
 06h	WORD	segment address of previous header block (0000h if first)
 08h	WORD	pointer to next TCB
 0Ah	WORD	pointer to previous TCB
 0Ch	WORD	pointer to associated TCB (if applicable)
 0Eh	WORD	reserved
---TFB---
 10h	WORD	segment address of next TFB
 12h	WORD	segment address of previous TFB
 14h	WORD	segment address of TFB's Global File Block (see #2594)
 16h	WORD	segment address of owner's PSP
 18h	WORD	file handle
 1Ah  3 BYTEs	???
 1Dh	DWORD	file position
 21h  4 BYTEs	???
 25h	BYTE	IOCTL flags (see #2593)
 26h  2 BYTEs	???

Bitfields for PC-MOS/386 IOCTL flags:
Bit(s)	Description	(Table 2593)
 0	stdin
 1	stdout
 2	null device
 3	clock device
 4	reserved
 5	ASCII mode instead of binary
 6	EOF encountered on input
 7	device rather than file

Format of PC-MOS/386 Global File Block:
Offset	Size	Description	(Table 2594)
 00h	BYTE	signature byte "H" if allocated from system memory pool
 01h	BYTE	header block ID, "G" = global file block
 02h	WORD	length of block in paragraphs
 04h	WORD	segment address of next header block (0000h if last)
 06h	WORD	segment address of previous header block (0000h if first)
 08h	WORD	pointer to next TCB
 0Ah	WORD	pointer to previous TCB
 0Ch	WORD	pointer to associated TCB (if applicable)
 0Eh	WORD	reserved
---GFB---
 10h 10 BYTEs	???
 1Ah	WORD	file attribute
 1Ch	BYTE	???
 1Dh	DWORD	address of device driver
 21h	WORD	first cluster
 23h	WORD	time of last modification
 25h	WORD	date of last modification
 27h	DWORD	size of file in bytes
 2Bh 11 BYTEs	???
 36h 11 BYTEs	device name or FCB-format filename
 41h	WORD	segment address of TFB list
 43h	WORD	segment address of first RLB (see #2597) (0000h = none)
 45h	BYTE	flag: nonzero if GFB refers to character device
 46h	WORD	address of Block Device Block (see #2596)
 48h	WORD	sector of file's directory entry
 4Ah	WORD	high word of file's directory entry
 4Ch	WORD	ofsset of directory entry within sector

Format of PC-MOS/386 Current Directory Block:
Offset	Size	Description	(Table 2595)
 00h	BYTE	signature byte "H" if allocated from system memory pool
 01h	BYTE	header block ID, "C" = current directory block
 02h	WORD	length of block in paragraphs
 04h	WORD	segment address of next header block (0000h if last)
 06h	WORD	segment address of previous header block (0000h if first)
 08h	WORD	pointer to next TCB
 0Ah	WORD	pointer to previous TCB
 0Ch	WORD	pointer to associated TCB (if applicable)
 0Eh	WORD	reserved
---CDB---
 10h	BYTE	drive number
 11h	BYTE	???
 12h 64 BYTEs	directory name
 52h	WORD	first directory cluster (0000h = root)

Format of PC-MOS/386 Block Device Block:
Offset	Size	Description	(Table 2596)
 00h	BYTE	signature byte "H" if allocated from system memory pool
 01h	BYTE	header block ID, "B" = block device block
 02h	WORD	length of block in paragraphs
 04h	WORD	segment address of next header block (0000h if last)
 06h	WORD	segment address of previous header block (0000h if first)
 08h	WORD	pointer to next TCB
 0Ah	WORD	pointer to previous TCB
 0Ch	WORD	pointer to associated TCB (if applicable)
 0Eh	WORD	reserved
---BDB---
 10h	BYTE	logical drive
 11h	BYTE	unit passed to driver
 12h	WORD	sector size
 14h	BYTE	cluster mask
 15h	BYTE	cluster shift count
 16h	WORD	starting sector of first FAT
 18h	BYTE	number of FATs
 19h	WORD	number of root directories
 1Bh	WORD	sector number of first data sector (cluster 0002h)
 1Dh	WORD	number of clusters + 1 (number of highest data cluster)
 1Fh	BYTE	number of sectors in FAT
 20h	WORD	beginning root directory sector number
 22h	DWORD	device driver address
 26h	BYTE	media descriptor byte
 27h  5 BYTEs	???
 2Ch	BYTE	flag: volume > 32MB
 2Dh	BYTE	???
 2Eh	BYTE	number of sectors per cluster
 2Fh	WORD	number of clusters on device
 31h	WORD	number of free clusters (FFFFh = unknown)
 33h	WORD	root directory cluster number
 35h	WORD	pointer to alias/subst string
 37h	WORD	TCB segment address of owner (0000h = none)

Format of PC-MOS/386 Record Lock Block:
Offset	Size	Description	(Table 2597)
 00h	BYTE	signature byte "H" if allocated from system memory pool
 01h	BYTE	header block ID, "R" = record lock block
 02h	WORD	length of block in paragraphs
 04h	WORD	segment address of next header block (0000h if last)
 06h	WORD	segment address of previous header block (0000h if first)
 08h	WORD	pointer to next TCB
 0Ah	WORD	pointer to previous TCB
 0Ch	WORD	pointer to associated TCB (if applicable)
 0Eh	WORD	reserved
---RLB---
 10h	WORD	segment address of owner's PSP
 12h	WORD	segment address of Global File Block (see #2594)
 14h	WORD	segment address of owner's Task File Block (see #2592)
 16h	DWORD	file offset of locked region start
 1Ah	DWORD	length of locked region
 1Eh	WORD	owner's handle for file
--------O-D407-------------------------------
INT D4 - PC-MOS/386 v3.0+ - WAIT FOR EVENT
	AH = 07h
	AL = events to monitor (see #2598)
	BX = number of timer ticks until timeout if AL bit 1 set
	CX = bitmap of IRQs to monitor if AL bit 2 set
		(bit 0 = IRQ0 .. bit 15 = IRQ15)
	DX = port to monitor if AL bit 3 set
Return: CF clear if successful
	    AL = type of event which woke up task (see #2598)
	    CX = IRQ (if any) which awakened task
	    DX = port (if any) which awakened task
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Note:	a device driver may make this call with AL=00h, which indicates that
	  the driver is responsible for setting and clearing the TCBWAIT field
	  in the TCB.  To put task to sleep, set TCBWAIT bits 2-0 to 001; to
	  reawaken it, set bit 1 (leaving other bits unchanged)
SeeAlso: AH=04h,INT 16/AH=00h,INT 38

Bitfields for PC-MOS/386 events to monitor:
Bit(s)	Description	(Table 2598)
 0	keystroke
 1	timeout
 2	IRQ
 3	port access
 7	return status of user poll routine (other ignored if set)
--------O-D410-------------------------------
INT D4 - PC-MOS/386 v3.0+ - ENTER/LEAVE NATIVE 386 EXECUTION MODE
	AH = 10h
	AL = direction (00h return to V86 mode, 01h enter native mode)
	CX = length in bytes of Native Context Area ( >=1024 )
	DX = segment of Native Context Area
Return: CF clear if successful
	    running in desired mode at instruction following INT D4 call
	    all segment registers converted to appropriate selectors/segments
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Note:	MS-DOS calls are available in protected mode
SeeAlso: AH=11h,AH=12h,AH=13h,INT 2F/AX=1687h,INT 67/AX=DE0Ch,INT 38
--------O-D411-------------------------------
INT D4 - PC-MOS/386 v3.0+ - ALLOCATE NATIVE MODE MEMORY BLOCK
	AH = 11h
	EBX = block length in bytes
Return: CF clear if successful
		 EBX = number of bytes actually allocated
	    ES = selector for allocated block
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
Note:	the memory must be released before the program terminates
SeeAlso: AH=10h,AH=12h,INT 38
--------O-D412-------------------------------
INT D4 - PC-MOS/386 v3.0+ - FREE NATIVE MODE MEMORY BLOCK
	AH = 12h
	ES = selector for block to free
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=10h,AH=11h,AH=13h,INT 38
--------O-D413-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET ALIAS FOR SELECTOR (NATIVE MODE ONLY)
	AH = 13h
	AL = type of alias selector (00h data, 01h stack, 02h code)
	BX = selector
Return: CF clear if successful
	    AX = new selector or 0000h if BX selector not found
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=11h,AH=12h
--------O-D416-------------------------------
INT D4 - PC-MOS/386 v5.01 - SET/CLEAR IRQ RESERVATION
	AH = 16h
	AL = function (00h clear, 01h set reservation)
	CX = IRQ number
Return: AX = status
	    (0000h successful, 0001h currently reserved by another task)
SeeAlso: AH=07h,INT 14/AH=11h"PC-MOS"
--------O-D419-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET TASK ID
	AH = 19h
Return: BX = caller's task ID
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=1Dh,AH=1Eh
--------O-D41A-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET/SET TASK PRIORITY
	AH = 1Ah
	AL = subfunction (00h read, 01h set, 02h get and set)
	BX = task ID (FFFFh for current task)
	CL = new priority value
Return: CF clear if successful
	    CL = current priority value
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=1Bh,AH=1Ch
--------O-D41B-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET/SET TIME SLICE
	AH = 1Bh
	AL = subfunction (00h read, 01h set, 02h get and set)
	BX = task ID (FFFFh for current task) (see AH=19h)
	CL = new time slice value
Return: CF clear if successful
	    CL = current time slice value
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=1Ah,AH=1Ch
--------O-D41C-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET/SET KEYBOARD MODE
	AH = 1Ch
	AL = subfunction (00h enable, 01h disable, 02h get mode)
	BX = task ID (FFFFh for current task)
Return: CF clear if successful
		 CL = current keyboard state
	CF set on error
	    AX = error code (INT 21/AH=59h)
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=1Ah,AH=1Bh
--------O-D41D-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET CURRENT PROGRAM NAME
	AH = 1Dh
	BX = task ID (FFFFh for current task) (see AH=19h)
	ES:DI -> buffer for program name (see #2599)
Return: CF clear if successful
	    ES:DI buffer filled
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=19h,AH=1Eh

Format of PC-MOS/386 program name buffer:
Offset	Size	Description	(Table 2599)
 00h  8 BYTEs	filename
 08h  3 BYTEs	extension
--------O-D41E-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET CURRENT USERNAME AND SECURITY CLASS
	AH = 1Eh
	BX = task ID (FFFFh for current task)
	ES:DI -> 4-byte buffer for username
Return: CF clear if successful
	    CL = security class
		20h (' ') none
		41h-5Ah ('A'-'Z') security level
	    ES:DI buffer filled
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=19h,AH=1Dh
--------O-D41F-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET TASK PARTITION INFORMATION
	AH = 1Fh
	BX = task ID (FFFFh for current task) (see AH=19h)
Return: CF clear if successful
	    CX = start segment of task
	    DX = ending segment of task
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=2Dh
--------O-D420-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET PORT AND BAUDRATE INFORMATION
	AH = 20h
	BX = task ID (FFFFh for current task) (see AH=19h)
Return: CF clear if successful
	    CX = port number (0000h if none)
	    DI:SI = baudrate (if CX nonzero)
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: INT 14/AH=0Ch"FOSSIL"
--------O-D421-------------------------------
INT D4 - PC-MOS/386 v5.01 - REMOVE A TASK
	AH = 21h
	BX = task ID (FFFFh for current task) (see AH=19h)
Return: CF clear if successful
	    AX = ASCII percentage of System Memory Pool used
		(AH = tens digit, AL = ones digit)
	    DS,SI destroyed
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=22h
--------O-D422-------------------------------
INT D4 - PC-MOS/386 v5.01 - ADD A TASK TO THE SYSTEM
	AH = 22h
	DS:SI -> addtask data structure (see #2601)
Return: CF clear if successful
	    ES = segment address of the new task's TCB data structure
	CF set on error
	    AX = error code (see #2600)
SeeAlso: AH=21h

(Table 2600)
Values for PC-MOS/386 error code:
 08h	insufficient memory
 0Bh	invalid addtask structure format
 12h	insufficient available space in system memory pool
 1Fh	general failure
 55h	already allocated
 57h	if task already in use or invalid parameter

Format of PC-MOS/386 addtask data structure:
Offset	Size	Description	(Table 2601)
 00h	WORD	task size in KB (min 16KB)
 02h	WORD	task ID (0000h for automatic selection)
 04h	BYTE	task class (' ' or 'A'-'Z')
 05h	DWORD	-> ASCIZ name of task startup batchfile
 09h	DWORD	-> task's terminal driver (0000000h = background task)
 0Dh	WORD	task port
 0Fh	DWORD	task baud rate
 13h	DWORD	(ret) total extended memory
 17h	DWORD	(ret) number of 4K extended memory pages allocated
 1Bh	WORD	(ret) paragraphs of system memory pool allocated
 1Dh	WORD	(ret) system memory pool size in paragraphs
 1Fh	WORD	(ret) ASCII task percentage of system memory pool
 21h  3 BYTEs	reserved
--------O-D423-------------------------------
INT D4 - PC-MOS/386 v5.01 - CHANGE TERMINAL DRIVER
	AH = 23h
	BX = task ID (FFFFh for current task)
	DS:SI -> entry point of the new Device Driver Terminal
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
--------O-D424-------------------------------
INT D4 U - PC-MOS/386 v5.01 - GET OPERATING SYSTEM SERIAL NUMBER
	AH = 24h
Return: DS:DX -> '$'-terminated string containing the serial number
--------O-D425-------------------------------
INT D4 - PC-MOS/386 v5.01 - IDENTIFY LOAD ADDRESS OF DEVICE DRIVER LOCATION
	AH = 25h
	DX = driver's CS value
Return: AX = segment address of driver in system memory pool
	    (0000h if the driver is not within the system memory pool)
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
--------O-D426-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET SYSTEM CONTROL BLOCK SEGMENT/SELECTOR
	AH = 26h
Return: DX = segment/selector of the System Control Block (see #2587)
Note:	this function supersedes AH=02h
SeeAlso: AH=02h,AH=27h,AH=28h,AH=29h,AH=2Ah
--------O-D427-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET TASK CONTROL BLOCK SEGMENT/SELECTOR
	AH = 27h
	BX = task ID (FFFFh if current task) (see AH=19h)
Return: CF clear if successful
	    DX = segment/selector for the Task Control Block (see #2589)
	CF set on error
	    AX = error code (INT 21/AH=59h)
Note:	this function supersedes AH=04h
SeeAlso: AH=26h,AH=28h,AH=29h,AH=2Ah
--------O-D428-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET CONTROL BLOCK DATA FROM SCB OR TCB
	AH = 28h
	BX = offset into control block at which to start reading
	CX = number of bytes to read
	DX = segment/selector of control block obtained via AH=26h or AH=27h
	ES:DI -> buffer for data
Return: CF clear if successful
	CF set on error
	    AX = error code (see also INT 21/AH=59h)
		05h access denied due to an invalid segment/selector
SeeAlso: AH=26h,AH=27h,AH=29h,AH=2Ah
--------O-D429-------------------------------
INT D4 - PC-MOS/386 v5.01 - WRITE CONTROL BLOCK DATA INTO SCB OR TCB
	AH = 29h
	BX = offset into control block at which to start writing
	CX = number of bytes to write
	DX = segment/selector of control block obtained via AH=26h or AH=27h
	DS:SI -> buffer containing data to be written
Return: CF clear if successful
	CF set on errro
	    AX = error code (see also INT 21/AH=59h)
		05h access denied due to an invalid segment/selector
Note:	 this function performs no bounds checking
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=26h,AH=27h,AH=28h,AH=2Ah
--------O-D42A-------------------------------
INT D4 - PC-MOS/386 v5.01 - SWAP CONTROL BLOCK DATA OF SCB OR TCB
	AH = 2Ah
	BX = offset into control block at which to start swap
	CX = number of bytes to swap
	DX = segment/selector of control block obtained via AH=26h or AH=27h
	DS:SI -> buffer containing new data and to receive current data
Return: CF clear if successful
	CF set on error
	    AX = error code (see also INT 21/AH=59h)
		05h access denied due to an invalid segment/selector
Note:	the interrupts are disabled during the swap to prevent corruption
SeeAlso: AH=26h,AH=27h,AH=28h,AH=29h
--------O-D42C-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET/SET SPOOLER PARAMETERS
	AH = 2Ch
	AL = function
	    00h set spooler timeout
		CX = timout value in seconds
	    01h get spooler timeout
		Return: CX = current timeout in seconds
	    02h get spooler parameters
		Return: CH = priority (00h-09h)
			CL = disposition (d, h, i, n, s)
			SI = class (a - z)
	    03h set spooler parameters
		CH = priority (00h-09h)
		CL = disposition (d, h, i, n, s)
		SI = class (a - z)
		BX = task ID (FFFFh for current task)
		DX = LPT number
Return: CF clear if successful
	CF set on error
	    AX = error code (see #0885 at INT 21/AH=59h)
SeeAlso: AH=00h,AH=02h,AH=03h
--------O-D42D-------------------------------
INT D4 - PC-MOS/386 v5.01 - GET MAXIMUM TASK SIZE
	AH = 2Dh
Return: DX = maximum task size in paragraphs
	BX = start address of task space
Program: PC-MOS/386 is a multitasking/multiuser MS-DOS-compatible operating
	  system by The Software Link, Inc.
SeeAlso: AH=1Fh,AH=22h
--------r-D5---------------------------------
INT D5 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D4"BASIC",INT D6"BASIC"
--------r-D5---------------------------------
INT D5 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-D6---------------------------------
INT D6 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D5"BASIC",INT D7"BASIC"
--------r-D6---------------------------------
INT D6 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-D7---------------------------------
INT D7 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D6"BASIC",INT D8"BASIC"
--------r-D7---------------------------------
INT D7 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------r-D8---------------------------------
INT D8 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D7"BASIC",INT D9"BASIC"
--------r-D8---------------------------------
INT D8 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------H-D8---------------------------------
INT D8 - Screen Thief v1.00 - RELOCATED IRQ0
Range:	INT 78h to INT E0h, selected by commandline switch
Note:	Screen Thief relocates IRQs 0 through 7 to INT D8 to INT DF by default,
	  but may be directed via a commandline switch to use any range
	  starting at a multiple of 8 between 78h and E0h
SeeAlso: INT 08"IRQ0",INT 2D/AL=10h"Screen Thief",INT 50"DESQview"
SeeAlso: INT D9"Screen Thief"
--------r-D9---------------------------------
INT D9 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D8"BASIC",INT DA"BASIC"
--------r-D9---------------------------------
INT D9 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------H-D9---------------------------------
INT D9 - Screen Thief v1.00 - RELOCATED IRQ1
Range:	INT 79h to INT E1h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 09"IRQ1",INT D8"Screen Thief",INT DA"Screen Thief"
--------r-DA---------------------------------
INT DA - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT D9"BASIC",INT DB"BASIC"
--------r-DA---------------------------------
INT DA - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------H-DA---------------------------------
INT DA - Screen Thief v1.00 - RELOCATED IRQ2
Range:	INT 7Ah to INT E2h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 0A"IRQ2",INT D9"Screen Thief",INT DB"Screen Thief"
--------r-DB---------------------------------
INT DB - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT DA"BASIC",INT DC"BASIC"
--------r-DB---------------------------------
INT DB - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------H-DB---------------------------------
INT DB - Screen Thief v1.00 - RELOCATED IRQ3
Range:	INT 7Bh to INT E3h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 0B"IRQ3",INT DA"Screen Thief",INT DC"Screen Thief"
--------u-DC---------------------------------
INT DC - PC/370 v4.1- - API
SeeAlso: INT 60"PC/370"
--------r-DC---------------------------------
INT DC - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT DB"BASIC",INT DD"BASIC"
--------r-DC---------------------------------
INT DC - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
--------H-DC---------------------------------
INT DC - Screen Thief v1.00 - RELOCATED IRQ4
Range:	INT 7Ch to INT E4h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 0C"IRQ4",INT DB"Screen Thief",INT DD"Screen Thief"
--------r-DD---------------------------------
INT DD - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT DC"BASIC",INT DE"BASIC"
--------r-DD---------------------------------
INT DD - STSC APL*PLUS/PC v9.0 - PLACE KEYSTROKE EVENTS IN INPUT BUFFER
	BX = where to place keystrokes
	    FFFFh insert before current buffer contents
	    0000h replace current contents
	    0001h insert after current contents
	CX = number of keystroke events to insert
	ES:SI -> data to be placed into buffer (list of WORD key codes)
	    4000h + N = normal ASCII keystroke N (N = 00h to FFh)
	    4100h + N = extended ASCII keystroke N (N = 03h to 84h)
SeeAlso: INT 16/AH=05h
--------H-DD---------------------------------
INT DD - Screen Thief v1.00 - RELOCATED IRQ5
Range:	INT 7Dh to INT E5h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 0D"IRQ5",INT DC"Screen Thief",INT DE"Screen Thief"
--------r-DE---------------------------------
INT DE - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT DD"BASIC",INT DF"BASIC"
--------r-DE---------------------------------
INT DE - APL*PLUS/PC - ???
Note:	appears to be the same as INT 16
--------H-DE---------------------------------
INT DE - Screen Thief v1.00 - RELOCATED IRQ6
Range:	INT 7Eh to INT E6h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 0E"IRQ6",INT DD"Screen Thief",INT DF"Screen Thief"
--------b-DF---------------------------------
INT DF - Victor 9000 - SuperBIOS
--------r-DF---------------------------------
INT DF - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT DE"BASIC",INT E0"BASIC"
--------r-DF---------------------------------
INT DF - APL*PLUS/PC - SAME AS INT 10
SeeAlso: INT 10
--------H-DF---------------------------------
INT DF - Screen Thief v1.00 - RELOCATED IRQ7
Range:	INT 7Fh to INT E7h, selected by commandline switch
Note:	(see INT D8"Screen Thief")
SeeAlso: INT 0F"IRQ7",INT DE"Screen Thief"
--------r-E0---------------------------------
INT E0 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT DF"BASIC",INT E1"BASIC"
--------r-E0---------------------------------
INT E0 - APL*PLUS/PC - RESTIME HIGH-RESOLUTION TIMER FOR QUAD MF FUNCTION
SeeAlso: INT CF"APL"
--------v-E0---------------------------------
INT E0 - VIRUS - "Micro-128" - ???
Note:	Micro-128 also overwrites the upper half of the interrupt table
SeeAlso: INT 9E"VIRUS",INT F1"VIRUS"
--------O-E0---------------------------------
INT E0 - CP/M-86, Concurrent CP/M, DR Multiuser DOS - FUNCTION CALLS
	CL = function number (see #2602,#2603)
	DS,DX = parameters
Return: as appropriate for function
	CX is often the error code (see #2604)
Notes:	several functions are covered in more detail in following entries
	most of these calls are also supported by Digital Research's DOS Plus
	  v2.1; the unsupported functions are 26h,29h-2Bh,3Ah,3Dh-62h,71h-8Ch,
	  90h-92h,94h-97h,9Bh-ABh, and AEh-FFh
SeeAlso: INT 21/AX=4459h,INT 21/AH=E0h"DOS Plus"

(Table 2602)
Values for CP/M-86,DR Multiuser DOS function number:
 00h	terminate calling process (see also INT 21/AH=00h)
 01h	read a character
 02h	write character to default console (see also INT 21/AH=02h)
 03h	read character from default AUX (see also INT 21/AH=03h)
 04h	write character to default AUX (see also INT 21/AH=04h)
 05h	write character to default list device (see also INT 21/AH=05h)
 06h	perform raw I/O on default console (see also INT 21/AH=06h)
 07h	return default AUX input status
 08h	return default AUX output status
 09h	write string to default console (see also INT 21/AH=09h)
 0Ah	read string from default console (see also INT 21/AH=0Ah)
 0Bh	return default console input status (see also INT 21/AH=0Bh)
 0Ch	get BDOS release ID
 0Dh	reset all disk drives (see also INT 21/AH=0Dh)
 0Eh	set default drive (see also INT 21/AH=0Eh)
 0Fh	open file via FCB (see also INT 21/AH=0Fh,#0574)
 10h	close file via FCB (see also INT 21/AH=10h)
 11h	search for first matching file with FCB (see also INT 21/AH=11h)
 12h	search for next matching file with FCB (see also INT 21/AH=12h)
 13h	delete file via FCB (see also INT 21/AH=13h)
 14h	sequential read via FCB (see also INT 21/AH=14h)
 15h	sequential write via FCB (see also INT 21/AH=15h)
 16h	create file via FCB (see also INT 21/AH=16h)
 17h	rename file via FCB (see also INT 21/AH=17h)
 18h	get bit map of logged drives
 19h	get default drive (see also INT 21/AH=19h)
 1Ah	set DMA address offset
 1Bh	get default disk allocation vector (see also INT 21/AH=1Bh)
 1Ch	set default drive to read-only
 1Dh	get bit map of read-only drives
 1Eh	set file attributes via FCB (see also INT 21/AX=4301h)
 1Fh	get address of disk parameter block (see also INT 21/AH=1Fh)
 20h	get/set default user number
 21h	read random record via FCB (see also INT 21/AH=21h)
 22h	write random record via FCB (see also INT 21/AH=22h)
 23h	compute file size with FCB (see also INT 21/AH=23h)
 24h	get FCB random record number (see also INT 21/AH=24h)
 25h	reset specified drives
 26h	access specified drives (not in DR DOS Plus v2.1)
 27h	free specified drives
 28h	write random with FCB, zero fill (see also also INT 21/AH=28h)
 2Ah	lock records in FCB file (see also INT 21/AH=5Ch)
 2Bh	unlock records in FCB file (see also INT 21/AH=5Ch)
 2Ch	set BDOS multisector count
 2Dh	set BDOS error mode
 2Eh	get free space on disk
 2Fh	load, initialize, and jump to process (see also INT 21/AH=4Bh)
 30h	flush write-deferred buffers
 31h	get/set system variable (DOS Plus v2.1)
 32h	call BIOS (XIOS) character routine (see #2603)
 33h	set DMA address segment
 34h	get DMA buffer address
 35h	CP/M-86 allocate maximum memory
 36h	allocate maximum memory at specified segment
 37h	CP/M-86 allocate memory segment (see also INT 21/AH=48h)
 38h	allocate memory at specified segment
 39h	CP/M-86 free specified memory segment (see also INT 21/AH=49h)
 3Ah	CP/M-86 free all memory (not in DOS Plus v2.1)
 3Bh	load .CMD file into memory
 3Ch	(DOS Plus v2.1) call RSX program
 40h	(DR-NET) log on a server
 41h	(DR-NET) log off a server
 42h	(DR-NET) send a message
 43h	(DR-NET) receive a message
 44h	(DR-NET) get network status
 45h	(DR-NET) get requestor configuration table
 46h	(DR-NET) set compatibility attributes
 47h	(DR-NET) get server configuration table
 48h	(DR-NET) set network error mode
 49h	(DR-NET) attach network
 4Ah	(DR-NET) detach network
 4Bh	(DR-NET) set default password
 4Ch	(DR-NET) get-set long timeout
 4Dh	(DR-NET) get parameter table
 50h	(DR-NET) get network information
 53h	get current time (see also INT 21/AH=2Ch)
 54h	set current time (see also INT 21/AH=2Dh)
 55h	get binary system date (see also INT 21/AH=2Ah)
 56h	set system date (see also INT 21/AH=2Bh)
 57h	allocate system flag
 58h	deallocate system flag
 59h	reserve memory in global area
 5Ah	lock physical drive
 5Bh	unlock physical drive
 5Ch	search path for executable file
 5Dh	load and execute command (see also INT 21/AH=4Bh)
 5Eh	get/set process exit code
 5Fh	set country information
 60h	get country information
 63h	truncate FCB file (see also INT 21/AH=28h)
 64h	create/update directory label
 65h	get directory label
 66h	get FCB date stamp and password mode
 67h	write extended FCB
 68h	set system date and time
 69h	get system date and time in binary
 6Ah	establish password for file access
 6Bh	get OS serial number
 6Ch	(DOS Plus v2.1) get/set program return code
 6Dh	get/set console mode
 6Eh	get/set string delimiter
 6Fh	write block to default console
 70h	write block to default list device
 71h	execute DOS-compatible function
 74h	set FCB time and date stamps
 80h	allocate memory
 82h	deallocate memory
 83h	poll I/O device
 84h	wait on system flag
 85h	set system flag
 86h	create message queue
 87h	open message queue
 88h	delete message queue
 89h	read from message queue
 8Ah	conditionally read from message queue
 8Bh	write to message queue
 8Ch	conditionally write to message queue
 8Dh	delay calling process
 8Eh	call process dispatcher (yield CPU)
 8Fh	terminate calling process (same as function 00h)
 90h	create a process
 91h	set calling process' priority
 92h	attach to default console
 93h	detach from default console
 95h	assign default console to process
 96h	interpret and execute commandline
 97h	resident procedure library
 98h	parse ASCII string into FCB (see also INT 21/AH=29h)
 99h	return default console
 9Ah	get address of system data (SYSDAT)
 9Bh	get system time and date
 9Ch	return calling process' descriptor
 9Dh	terminate process by name or PD address
 9Eh	attach to default list device
 9Fh	detach from default list device
 A0h	select default list device
 A1h	conditionally attach to default list device
 A2h	conditionally attach to default console
 A3h	get OS version number
 A4h	get default list device
 A5h	attach to default AUX
 A6h	detach from default AUX
 A7h	conditionally attach to default AUX
 A8h	set default AUX
 A9h	return default AUX
 ACh	read block from default AUX
 ADh	(DOS Plus v2.1) write block to default AUX
 B0h	configure default AUX
 B1h	get/set device control parameters
 B2h	send Break through default AUX
 B3h	allocate physical memory
 B4h	free physical memory
 B5h	map physical memory
 B6h	nondestructive message queue read
 B7h	timed wait on system flag
 B8h	get/set I/O port mapping
 B9h	set list device timeout
 BAh	set AUX timeout value
 BBh	execute XIOS service
 BDh	(DR Multiuser DOS) delay
 FFh	return 80386 to native mode

(Table 2603)
Values for DOS Plus v2.1 XIOS functions:
 00h	terminate program
 01h	???
 02h	check for console input status
 03h	read character from console
 04h	write character to console
 05h	write character to list device
 06h	write character to auxiliary device
 07h	read cahracter from auxiliary device
 0Fh	get list device status
 10h-14h reserved
 15h	device initialization
 16h	check console output status
 17h-7Fh reserved
---BBC Acorn---
 80h	get XIOS version
 81h	get Tube semaphore
 82h	release Tube semaphore
 83h	select text/graphics
 84h	update B&W graphics rectangle
 85h	update color graphics rectangle
 86h	get/release/update mouse
 87h	get system error info
 88h	entry in CLOCK called by WatchDog RSP
 89h	BBC OSBYTE function
 8Ah	BBC OSWORD function

(Table 2604)
Values for DR Multiuser DOS Error Return Code:
 00h	no error
 01h	system call not implemented
 02h	illegal system call number
 03h	cannot find memory
 04h	illegal flag number
 05h	flag overrun
 06h	flag underrun
 07h	no unused Queue Descriptors
 08h	no free queue buffer
 09h	cannot find queue
 0Ah	queue in use
 0Ch	no free Process Descriptors
 0Dh	no queue access
 0Eh	empty queue
 0Fh	full queue
 10h	CLI queue missing
 11h	no 8087 in system
 12h	no unused Memory Descriptors
 13h	illegal console number
 14h	no Process Descriptor match
 15h	no console match
 16h	no CLI process
 17h	illegal disk number
 18h	illegal filename
 19h	illegal filetype
 1Ah	character not ready
 1Bh	illegal Memory Descriptor
 1Ch	bad return from BDOS load
 1Dh	bad return from BDOS read
 1Eh	bad return from BDOS open
 1Fh	null command
 20h	not owner of resource
 21h	no CSEG in load file
 22h	process Descriptor exists on Thread Root
 23h	could not terminate process
 24h	cannot attach to process
 25h	illegal list device number
 26h	illegal password
 28h	external termination occurred
 29h	fixup error upon load
 2Ah	flag set ignored
 2Bh	illegal auxilliary device number
--------O-E0----CL03-------------------------
INT E0 - DR Multiuser DOS - "A_READ" - READ CHARACTER FROM AUX DEVICE
	CL = 03h
Return: AL = ASCII character
Notes:	A_READ reads the next 8-bit character from the logical auxilliary
	  input device (AUXn:); control is not returned to the calling
	  process until a character has been read.
	if another process owns AUX, this call blocks until the device becomes
	  available
SeeAlso: INT 21/AH=03h,INT E0/CL=04h,INT E0/CL=07h,INT E0/CL=A5h,INT E0/CL=ACh
--------O-E0----CL04-------------------------
INT E0 - DR Multiuser DOS - "A_WRITE" - WRITE CHARACTER TO AUX DEVICE
	CL = 04h
	DL = ASCII character
Return: nothing
Note:	if another process owns AUX, this call blocks until the device becomes
	  available
SeeAlso: INT 21/AH=04h,INT E0/CL=03h,INT E0/CL=08h,INT E0/CL=A5h,INT E0/CL=ADh
--------O-E0----CL07-------------------------
INT E0 - DR Multiuser DOS - "A_STATIN" - GET INPUT STATUS OF AUX DEVICE
	CL = 07h
Return: AL = status
	    00h not ready
	    FFh character available
Desc:	determine whether the current AUX device has input available
SeeAlso: INT E0/CL=03h,INT E0/CL=08h
--------O-E0----CL08-------------------------
INT E0 - DR Multiuser DOS - "A_STATOUT" - GET OUTPUT STATUS OF AUX DEVICE
	CL = 08h
Return: AL = status
	    00h not ready
	    FFh ready for output
Desc:	determine whether the current AUX device is able to accept more output
SeeAlso: INT E0/CL=04h,INT E0/CL=07h
--------O-E0----CL59-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "S_MEMORY" - RESERVE MEMORY IN GLOBAL AREA
	CL = 59h
	DX = size in bytes
Return: AX = status
		 FFFFh failed
	    other successful
		ES:BX -> reserved memory
--------O-E0----CL86-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_MAKE" - CREATE MESSAGE QUEUE
	CL = 86h
	DS:DX -> queue descriptor (see #2605)
Return: AX = status (0000h success, FFFFh failure)
	CX = error code (see #2604)
SeeAlso: INT E0/CL=87h

Format of DR Multiuser DOS queue descriptor:
Offset	Size	Description	(Table 2605)
 00h  2 WORDs	internal use, initialize to zeros
 04h	WORD	flags
 06h  8 BYTEs	queue name
 0Eh	WORD	length of message
 10h	WORD	number of messages
 12h  4 WORDs	internal use, initialize to zeros
 1Ah	WORD	offset in system area of buffer for messages
--------O-E0----CL87-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_OPEN" - OPEN MESSAGE QUEUE
	CL = 87h
	DS:DX -> queue parameter block (see #2606)
Return: AX = status (0000h success, FFFFh failure)
	CX = error code (see #2604)
SeeAlso: INT E0/CL=86h,INT E0/CL=89h

Format of DR Multiuser DOS queue parameter block:
Offset	Size	Description	(Table 2606)
 00h	WORD	internal use, initialize to zero
 02h	WORD	queue ID (set by INT E0/CL=87h)
 04h	WORD	internal use, initialize to zero
 06h	WORD	offset of queue message buffer
 08h  8 BYTEs	queue name
--------O-E0----CL89-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_READ" - READ MESSAGE QUEUE
	CL = 89h
	DS:DX -> queue parameter block (see #2606)
Return: AX = status (0000h success, FFFFh failure)
	CX = error code (see #2604)
SeeAlso: INT E0/CL=87h,INT E0/CL=8Ah,INT E0/CL=8Bh
--------O-E0----CL8A-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CREAD" - CONDITIONALLY READ MSG QUEUE
	CL = 8Ah
	DS:DX -> queue parameter block (see #2606)
Return: AX = status (0000h success, FFFFh failure)
	CX = error code (see #2604)
SeeAlso: INT E0/CL=87h,INT E0/CL=89h,INT E0/CL=8Ch
--------O-E0----CL8B-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_WRITE" - WRITE MESSAGE QUEUE
	CL = 8Bh
	DS:DX -> queue parameter block (see #2606)
Return: AX = status (0000h success, FFFFh failure)
	CX = error code (see #2604)
SeeAlso: INT E0/CL=89h,INT E0/CL=8Ch
--------O-E0----CL8C-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "Q_CWRITE" - CONDITIONALLY WRITE MSG QUEUE
	CL = 8Ch
	DS:DX -> queue parameter block (see #2606)
Return: AX = status (0000h success, FFFFh failure)
	CX = error code (see #2604)
SeeAlso: INT E0/CL=8Ah,INT E0/CL=8Bh
--------O-E0----CL8E-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "P_DISPATCH" - CALL DISPATCHER
	CL = 8Eh
	DX = FFFFh (optional) to force dispatch
Return: nothing
Desc:	allow other processes of the same or higher priority to run if they
	  are ready
Note:	if DX=FFFFh, a dispatch is forced even if no other process is ready
SeeAlso: INT E0/CL=91h
--------O-E0----CL91-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "P_PRIORITY" - SET PROCESS PRIORITY
	CL = 91h
	DL = new priority (00h highest to FFh lowest)
Note:	sets priority of calling process; transient processes are initialized
	  to priority C8h
SeeAlso: INT E0/CL=8Eh
--------O-E0----CL93-------------------------
INT E0 - ConcCP/M,DR Multiuser DOS - "C_DETACH" - DETACH FROM DEFAULT CONSOLE
	CL = 93h
Return: AX = status
	    0000h successfully detached
	    FFFFh detach failed
SeeAlso: INT E0/CL=A6h
--------O-E0----CLA5-------------------------
INT E0 - DR Multiuser DOS - "A_ATTACH" - ATTACH AUX DEVICE
	CL = A5h
Desc:	attaches the default auxiliary device to the calling process unless
	  it is already attached to another process, in which case the call
	  blocks until the device becomes available
Note:	this call should be used before attempting to read or write from
	  the AUX device; however, the I/O calls internally call this function
	  to ensure device ownership
SeeAlso: INT E0/CL=03h,INT E0/CL=04h,INT E0/CL=A6h,INT E0/CL=A7h,INT E0/CL=A8h
SeeAlso: INT E0/CL=ACh,INT E0/CL=ADh,INT E0/CL=B0h
--------O-E0----CLA6-------------------------
INT E0 - DR Multiuser DOS - "A_DETACH" - DETACH FROM AUX DEVICE
	CL = A6h
Return: AX = status
	    0000h successfully detached
	    FFFFh detach failed
	CX = error code
SeeAlso: INT E0/CL=93h,INT E0/CL=A5h,INT E0/CL=A7h
--------O-E0----CLA7-------------------------
INT E0 - DR Multiuser DOS - "A_CATTACH" - CONDITIONALLY ATTACH TO AUX DEVICE
	CL = A7h
Return: AX = status
	    0000h attached
	    FFFFh unable to attach
Desc:	attaches the default auxiliary device to the calling process if it is
	  available
Note:	does not block if the device is already in use
SeeAlso: INT E0/CL=A5h,INT E0/CL=A6h,INT E0/CL=A8h,INT E0/CL=B0h
--------O-E0----CLA8-------------------------
INT E0 - DR Multiuser DOS - "A_SET" - SET DEFAULT AUX DEVICE NUMBER
	CL = A8h
	DL = auxiliary device number
Return: AX = status
	    0000h successful
	    FFFFh failed
	CX = error code
Desc:	specify which physical device will become AUX
SeeAlso: INT E0/CL=A5h,INT E0/CL=A9h
--------O-E0----CLA9-------------------------
INT E0 - DR Multiuser DOS - "A_GET" - GET DEFAULT AUX DEVICE NUMBER
	CL = A9h
Return: AL = current default auxiliary device number
Desc:	determine which physical device is currently AUX
SeeAlso: INT E0/CL=A8h
--------O-E0----CLAC-------------------------
INT E0 - DR Multiuser DOS - "A_READBLK" - READ STRING FROM AUX DEVICE
	CL = ACh
	DS:DX -> character control block (CHCB) (see #2607)
Return: AX = number of characters read
Desc:	read characters from the default auxiliary (AUXn:) device into a buffer
	  until the buffer is full or the device is no longer ready
Notes:	if the device is initially not ready, blocks until at least one
	  character has been read
	if another process owns AUX, this call blocks until the device becomes
	  available
SeeAlso: INT E0/CL=03h,INT E0/CL=A5h,INT E0/CL=ADh

Format of DR Multiuser DOS character control block (CHCB):
Offset	Size	Description	(Table 2607)
 00h	DWORD	pointer to character buffer
 04h	WORD	length of character buffer
--------O-E0----CLAD-------------------------
INT E0 - DR Multiuser DOS - "A_WRITEBLK" - WRITE STRING TO AUX DEVICE
	CL = ADh
	DS:DX -> character control block (see #2607)
Return: AX = number of characters written
Note:	does not return until at least one character has been written
SeeAlso: INT E0/CL=04h,INT E0/CL=A5h,INT E0/CL=ACh
--------O-E0----CLB0-------------------------
INT E0 - DR Multiuser DOS - "A_CONFIG" - GET/SET AUX DEVICE PARAMETERS
	CL = B0h
	DX:DX -> AUX device parameter block (see #2608)
Return: AX = status
	    0000h successful
		parameter block updated
	    FFFFh failed
		CX = error code
SeeAlso: INT E0/CL=A5h,INT E0/CL=B1h

Format of DR Multiuser DOS AUX device parameter block:
Offset	Size	Description	(Table 2608)
 00h	BYTE	function (00h get, 01h set)
 01h	BYTE	baud rate (see #2610) FFh = don't change/unknown
 02h	BYTE	parity (see #2609)
 03h	BYTE	stop bits (00h one, 01h 1.5, 02h two, FFh unknown/don't change)
 04h	BYTE	data bits (05h-08h or FFh unknown/don't change)
 05h	BYTE	handshake (00h none, 01h DTS/DSR, 02h RTS/CTS, 04h XON/XOFF,
		FFh unknown/don't change)
 06h	BYTE	XON character, FFh unknown/don't change
 07h	BYTE	XOFF character, FFh unknown/don't change

(Table 2609)
Values for DR Multiuser DOS AUX parity:
 00h	none
 01h	odd
 02h	none
 03h	even
 04h	stick parity bit
 FFh	don't change/unknown

(Table 2610)
Values for DR Multiuser DOS AUX baud rate:
 00h	50 baud
 01h	62.5 baud
 02h	75 baud
 03h	110 baud
 04h	134.5 baud
 05h	150 baud
 06h	200 baud
 07h	300 baud
 08h	600 baud
 09h	1200 baud
 0Ah	1800 baud
 0Bh	2000 baud
 0Ch	2400 baud
 0Dh	3600 baud
 0Eh	4800 baud
 0Fh	7200 baud
 10h	9600 baud
 11h	19200 baud
 12h	38400 baud
 13h	56000 baud
 14h	76800 baud
 15h	115200 baud
--------O-E0----CLB1-------------------------
INT E0 - DR Multiuser DOS - "A_CONTROL" - GET/SET AUX CONTROL PARAMETERS
	CL = B1h
	DS:DX -> AUX device control block (see #2611)
Return: AX = status
	    0000h successful
		control block updated
	    FFFFh failed
		CX = error code
SeeAlso: INT E0/CL=B0h,INT E0/CL=B2h

Format of DR Multiuser DOS AUX device control block:
Offset	Size	Description	(Table 2611)
 00h	BYTE	function (00h get, 01h set)
 01h	BYTE	DTR state (00h low, 01h high, FFh unknown/don't change)
 02h	BYTE	RTS state (00h low, 01h high, FFh unknown/don't change)
 03h	BYTE	DSR state (00h low, 01h high, FFh unknown/don't change)
 04h	BYTE	CTS state (00h low, 01h high, FFh unknown/don't change)
 05h	BYTE	DCD state (00h low, 01h high, FFh unknown/don't change)
 06h	BYTE	RI state (00h inactive, 01h active, FFh unknown/don't change)
--------O-E0----CLB2-------------------------
INT E0 - DR Multiuser DOS - "A_BREAK" - SEND BREAK TO AUX DEVICE
	CL = B2h
	DX = duration of break in system ticks (0001h-FFFFh)
Return: AX = status
	    0000h successful
		break signal completed
	    FFFFh failed
		CX = error code
Note:	if the AUX device is currently owned by another process, this call will
	  block until the device becomes available
SeeAlso: INT E0/CL=A5h,INT E0/CL=B1h
--------O-E0----CLBD-------------------------
INT E0 - DR Multiuser DOS - "P_DELAY" - DELAY EXECUTION
	CL = BDh
	DX = delay in system ticks
Return: after the delay elapses
Notes:	the length of a system tick is installation-dependent (typically
	  1/50 or 1/60 second); the length may be determined by reading the
	  TICKSPERSEC value from the system data segment
	the actual delay before the process is rescheduled to run may be up to
	  one tick longer than requested; the delay between rescheduling and
	  actual execution cannot be predicted if higher-priority processes
	  are awaiting a turn at the CPU
SeeAlso: INT 15/AH=86h,INT 1A/AX=FF01h,INT 2F/AX=1224h,INT 62/AX=0096h
--------g-E00000-----------------------------
INT E0 - PCROBOTS v1.41 - "SWAPTASK" - END CURRENT ROBOT'S TURN
	AX = 0000h
Program: PCROBOTS is P.D. Smith's adaptation of Tom Poindexter's CROBOTS, in
	  which specially-written .COM or .EXE programs form robots battling
	  each other in a user-defined arena
--------g-E00001-----------------------------
INT E0 - PCROBOTS v1.41 - "MOVEMENT" - START MOVING
	AX = 0001h
	BX = speed (0-maximum for robot)
	CX = direction (0-359 degrees)
Notes:	the speed will change to the specified value at the maximum
	  acceleration the robot is capable of; if the robot is already moving
	  faster than its maximum maneuverability speed, it will not be able
	  to change direction
	this call also terminates the current robot's turn
SeeAlso: AX=0000h,AX=0002h,AX=0003h
--------g-E00002-----------------------------
INT E0 - PCROBOTS v1.41 - "SCAN" - SCAN FOR OTHER ROBOTS IN THE GIVEN DIRECTION
	AX = 0002h
	BX = direction (0-359 degrees)
	CX = resolution (0-45 degrees)
Return: AX = status
	    FFFFh if nothing detected
	    else robot ID (0-19)
		BX = range to detected robot
Notes:	the scan searches within CX degrees to either side of the specified
	  direction
	the scanner will see right through walls, but shells will not pass
	  through walls
	this call also terminates the current robot's turn
SeeAlso: AX=0000h,AX=0001h,AX=0003h
--------g-E00003-----------------------------
INT E0 - PCROBOTS v1.41 - "SHOOT" - FIRE A SHELL AT ANOTHER ROBOT
	AX = 0003h
	BX = direction (0-359 degrees)
	CX = range (0-700)
Return: AX = status (0000h not fired, else ID of shell fired)
Notes:	up to seven shells may be in flight for a robot at one time; the cannon
	  takes 50 ticks to reload
	this call also terminates the current robot's turn
SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=002Ch
--------g-E00010-----------------------------
INT E0 - PCROBOTS v1.41 - "GETXY" - GET ROBOT'S CURRENT POSITION
	AX = 0010h
Return: BX = current X coordinate (0-999)
	CX = current Y coordinate (0-999)
--------g-E00011-----------------------------
INT E0 - PCROBOTS v1.41 - "TRANSMIT" - SEND DATA TO ANOTHER ROBOT
	AX = 0011h
	BX = target robot ID
	CX = data to be sent
Return: AX = status (0000h data could not be sent, 0001h data sent)
Note:	this call costs one unit of battery power
--------g-E00012-----------------------------
INT E0 - PCROBOTS v1.41 - "RECEIVE" - GET DATA FROM OTHER ROBOTS
	AX = 0012h
Return: AX = status
	    0000h no data available
	    0001h data retrieved
		BX = sender's ID
		CX = data
Note:	each robot has a 20-word receive FIFO; if the FIFO is full, other
	  robots will be unable to send more data until some is read
--------g-E00013-----------------------------
INT E0 - PCROBOTS v1.41 - "DAMAGE" - DETERMINE HOW MUCH DAMAGE SUSTAINED
	AX = 0013h
Return: BX = damage status
Note:	the initial value depends on configuration, but is typically 100; as
	  the robot is damaged, it decreases
--------g-E00014-----------------------------
INT E0 - PCROBOTS v1.41 - "SPEED" - DETERMINE HOW FAST ROBOT IS MOVING
	AX = 0014h
Return: BX = current speed
--------g-E00015-----------------------------
INT E0 - PCROBOTS v1.41 - "BATTERY" - DETERMINE HOW MUCH BATTERY POWER LEFT
	AX = 0015h
Return: BX = current battery charge
Note:	the battery starts off with 1000 units of charge, and is constantly
	  being charged by solar panels and constantly discharged by motion;
	  the battery is charged at 4 units per turn and discharged at
	  0.1*speed units per turn.
--------g-E00016-----------------------------
INT E0 - PCROBOTS v1.41 - "TICKS" - DETERMINE HOW LONG SINCE GAME STARTED
	AX = 0016h
Return: BX:CX = number of game ticks elapsed (not related to real time)
--------g-E00017-----------------------------
INT E0 - PCROBOTS v1.41 - "L_SIN" - GET SCALED SINE OF AN ANGLE
	AX = 0017h
	BX = angle (0-359 degrees)
Return: BX:CX = 100000*sine of angle
SeeAlso: AX=0018h,AX=0019h,AX=001Ah,AX=001Bh
--------g-E00018-----------------------------
INT E0 - PCROBOTS v1.41 - "L_COS" - GET SCALED COSINE OF AN ANGLE
	AX = 0018h
	BX = angle (0-359 degrees)
Return: BX:CX = 100000*cosine of angle
SeeAlso: AX=0017h,AX=0019h,AX=001Ah
--------g-E00019-----------------------------
INT E0 - PCROBOTS v1.41 - "L_TAN" - GET SCALED TANGENT OF AN ANGLE
	AX = 0019h
	BX = angle (0-359 degrees)
Return: BX:CX = 100000*tangent of angle
SeeAlso: AX=0017h,AX=0018h,AX=001Ah
--------g-E0001A-----------------------------
INT E0 - PCROBOTS v1.41 - "L_ATAN" - GET ANGLE GIVEN SCALED TANGENT
	AX = 001Ah
	BX:CX = 100000*tangent of an angle
Return: AX = angle (-90 to +90 degrees)
SeeAlso: AX=0017h,AX=0018h,AX=0019h
--------g-E0001B-----------------------------
INT E0 - PCROBOTS v1.41 - "SQRT" - DETERMINE SQUARE ROOT OF A NUMBER 
	AX = 001Bh
	BX:CX = value
Return: BX:CX = square root
SeeAlso: AX=0017h
--------g-E0001C-----------------------------
INT E0 - PCROBOTS v1.41 - "SET_PATTERN" - SPECIFY ROBOT'S DISPLAY IMAGE
	AX = 001Ch
	BX:CX -> pattern array
Note:	the pattern array consists of five bytes, the low five bits of each
	  specifying the bit pattern for one line of the robot's screen display
--------g-E0001D-----------------------------
INT E0 - PCROBOTS v1.41 - "DEBUG_FLAG" - SET/CLEAR MARKERS NEXT TO ROBOT'S NAME
	AX = 001Dh
	BX = flag number (0 or 1)
	CX = new value (0 reset, 1 set)
Program: PCROBOTS is P.D. Smith's adaptation of Tom Poindexter's CROBOTS, in
	  which specially-written .COM or .EXE programs form robots battling
	  each other in a user-defined arena
Note:	the two flag markers may be used for any purpose, typically for
	  debugging to provide a visual display of progress
--------g-E0001E-----------------------------
INT E0 - PCROBOTS v1.41 - "BUY_ARMOUR" - BUY OR SELL ARMOR FOR ROBOT
	AX = 001Eh
	BX = number of armor units to buy (negative to sell)
Note:	each armor unit is worth 50 battery units; the robot's armor rating
	  will not go above its initial rating, so attempts to purchase more
	  will waste battery units
SeeAlso: AX=001Fh
--------g-E0001F-----------------------------
INT E0 - PCROBOTS v1.41 - "BUY_SHELLS" - BUY ADDITIONAL CANNON SHELLS
	AX = 001Fh
	BX = number of shells to buy
Note:	each shell costs ten battery units
SeeAlso: AX=001Eh,AX=0020h
--------g-E00020-----------------------------
INT E0 - PCROBOTS v1.41 - "SHELLS LEFT" - DETERMINE HOW MANY SHELLS ROBOT HAS
	AX = 0020h
Return: BX = number of shells remaining
SeeAlso: AX=001Fh
--------g-E00021-----------------------------
INT E0 - PCROBOTS v1.41 - "GET LOCAL MAP"
	AX = 0021h
	BX:CX -> 81-byte buffer for map (see #2612)
Return: buffer filled with 9x9 area of map centered on robot's position

(Table 2612)
Values for PCROBOTS map squares:
 2Eh '.' empty square
 44h 'D' damaging trap
 52h 'R' refueling point
 58h 'X' wall
--------g-E00022-----------------------------
INT E0 - PCROBOTS v1.41 - "INVISIBILITY" - CONTROL ROBOT'S INVISIBILITY DEVICE
	AX = 0022h
	BX = new state (0000h become visible, 0001h become invisible)
Notes:	this function has no effect if the robot is not capable of invisibility
	the robot can only stay invisible for 100 turns, after which it will
	  automatically become visible; it must also be remain visible for
	  as many turns as it was invisible before it can turn invisible
	  again
SeeAlso: AX=0024h,AX=0080h
--------g-E00023-----------------------------
INT E0 - PCROBOTS v1.41 - "GET_SHELL_STATUS" - FIND OUT WHAT HAPPENED TO SHELL
	AX = 0023h
Return: BX = status of last shell to land
	    0000h missed completely
	    0001h hit a wall
	    0002h hit a robot within 50-square radius
	    0003h hit a robot within 25-square radius
		 0004h hit a robot within 5-square radius
--------g-E00024-----------------------------
INT E0 - PCROBOTS v1.41 - "IS_INVISIBLE" - DETERMINE WHETHER ROBOT IS INVISIBLE
	AX = 0024h
Return: BX = visibility (0000h visible, 0001h invisible)
SeeAlso: AX=0022h,AX=0080h
--------g-E00025-----------------------------
INT E0 - PCROBOTS v1.41 - "L_ATAN2" - GET ARCTANGENT
	AX = 0025h
	BX = Y
	CX = X
Return: AX = angle (arctangent of Y/X)
--------g-E00026-----------------------------
INT E0 - PCROBOTS v1.41 - "GET_ROBOT_ID" - DETERMINE CURRENT ROBOT'S IDENTIFIER
	AX = 0026h
Return: AX = robot ID
--------g-E00027-----------------------------
INT E0 - PCROBOTS v1.41 - "REGISTER_IFF" - REGISTER FRIEND/FOE IDENT STRING
	AX = 0027h
	BX:CX = ASCIZ IFF string
Note:	the IFF string may only be set once
SeeAlso: AX=0028h,AX=0029h
--------g-E00028-----------------------------
INT E0 - PCROBOTS v1.41 - "CHECK_IFF" - QUERY FRIEND/FOE IDENTIFICATION STRING
	AX = 0028h
	BX = robot ID to test
Return: AX = status
	    0000h IFF strings match
	    0001h IFF strings differ or invalid robot ID
SeeAlso: AX=0027h
--------g-E00029-----------------------------
INT E0 - PCROBOTS v1.41 - "REGISTER_NAME" - SPECIFY ROBOT'S NAME
	AX = 0029h
	BX:CX -> ASCIZ name string
Note:	the name may only be set once
SeeAlso: AX=0027h,AX=002Ah
--------g-E0002A-----------------------------
INT E0 - PCROBOTS v1.41 - "FIND_NAME" - SEARCH FOR ROBOT WITH GIVEN NAME
	AX = 002Ah
	BX:CX -> ASCIZ name string
	DX = first ID to check
Return: AX = robot ID or FFFFh if no robot with specified name
SeeAlso: AX=0028h,AX=0029h,AX=002Bh
--------g-E0002B-----------------------------
INT E0 - PCROBOTS v1.41 - "GET_TEAM_ID" - DETERMINE TEAM MEMBERSHIP OF ROBOT
	AX = 002Bh
Return: AX = team ID (0-2) or FFFFh if 'loner'
SeeAlso: AX=0029h
--------g-E0002C-----------------------------
INT E0 - PCROBOTS v1.41 - "GET_ASHELL_STATUS" - FIND OUT WHAT HAPPENED TO SHELL
	AX = 002Ch
	BX = shell ID
Return: AX = status
	    0000h missed completely
	    0001h hit a wall
	    0002h hit a robot within a 50-square radius
	    0003h hit a robot within a 25-square radius
	    0004h hit a robot within a 5-square radius
	    0005h shell not known (too old or not yet fired)
	    0006h shell still in flight
SeeAlso: AX=0003h
--------g-E0002D-----------------------------
INT E0 - PCROBOTS v1.41 - "REGISTER_X" - SELECT AUTOMATIC X POSITION UPDATES
	AX = 002Dh
	BX:CX -> X word variable
Return: AX = status (0001h OK, 0000h problem with address)
Note:	after this call, PCROBOTS will automatically update the specified
	  word whenever the robot moves
SeeAlso: AX=002Eh
--------g-E0002E-----------------------------
INT E0 - PCROBOTS v1.41 - "REGISTER_Y" - SELECT AUTOMATIC Y POSITION UPDATES
	AX = 002Eh
	BX:CX -> Y word variable
Return: AX = status (0001h OK, 0000h problem with address)
Note:	after this call, PCROBOTS will automatically update the specified
	  word whenever the robot moves
SeeAlso: AX=002Dh
--------g-E00080-----------------------------
INT E0 - PCROBOTS v1.41 - "CONFIGURE" - CUSTOMIZE ROBOT
	AX = 0080h
	BX = basic configuration (see #2613)
	CX = advanced configuration (see #2614)
Return: AX = status (0001h OK, 0000h not first call in program)
Program: PCROBOTS is P.D. Smith's adaptation of Tom Poindexter's CROBOTS, in
	  which specially-written .COM or .EXE programs form robots battling
	  each other in a user-defined arena
Notes:	a maximum of ten points may be allocated to the robot; if you attempt
	  to allocate more, some items will be given a value of zero.  If this
	  function is not called, each attribute is set to the default value
	  of 2.
	if the invisibility option is chosen, the robot will start with only
	  900 cannon shells instead of the default 1000

Bitfields for PCROBOTS basic configuration:
Bit(s)	Description	(Table 2613)
 0-3	maximum speed (0-4 = 50,75,100,150,200)
 4-7	maneuverability (0-4 = 20%,35%,50%,75%,100%)
 8-11	cannon range (0-4 = 300,500,700,1000,1500)
 12-15	robot armor (0-4 = 50,75,100,150,200)

Bitfields for PCROBOTS advanced configuration:
Bit(s)	Description	(Table 2614)
 0-2	robot acceleration (0-4 = 5,7,10,15,20)
 3	capable of invisibility
--------r-E1---------------------------------
INT E1 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------N-E1---------------------------------
INT E1 - PC Cluster Disk Server Information (NOT A VECTOR!)
Desc:	points at a data table
SeeAlso: INT E2
--------O-E1---------------------------------
INT E1 - MP/M-86, - ALTERNATE CP/M-86 FUNCTION CALLS
	CL = function number (see #2602,#2603 at INT E0"CP/M")
	DS,DX = parameters
Return: as appropriate for function
	CX is often the error code (see #2604 at INT E0"CP/M")
Desc:	used by some applications which alter CP/M functions while running a
	  child program, to store the original INT E0 vector before
	  intercepting INT E0
SeeAlso: INT E0"CP/M"
--------r-E2---------------------------------
INT E2 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------N-E2---------------------------------
INT E2 - PC Cluster Program - RELOCATED INT 1C
SeeAlso: INT 1C
--------r-E3---------------------------------
INT E3 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-E40005-----------------------------
INT E4 - Logitech Modula v2.0 - MonitorEntry
	AX = 0005h
	BX = priority
SeeAlso: AX=0006h
--------r-E40006-----------------------------
INT E4 - Logitech Modula v2.0 - MonitorExit
	AX = 0006h
SeeAlso: AX=0005h
--------r-E4---------------------------------
INT E4 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-E5---------------------------------
INT E5 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-E6---------------------------------
INT E6 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-E7---------------------------------
INT E7 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-E8---------------------------------
INT E8 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-E9---------------------------------
INT E9 - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-EA---------------------------------
INT EA - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-EB---------------------------------
INT EB - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------r-EC---------------------------------
INT EC - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC
	BASIC.COM/BASICA.COM do not restore vector on termination
--------N-EC---------------------------------
INT EC - used by Alloy NTNX
--------r-EC---------------------------------
INT EC - Exact - RUNTIME INTERFACE MULTIPLEXOR
	AX = function number (0000h to 0140h)
	STACK:	DWORD address to return to
		any arguments required by function
Return: STACK:	return address popped, but otherwise unchanged
Desc:	this is the interface from applications to the runtime system by Exact
	  Automatisering B.V. of the Netherlands.  By using this interrupt,
	  it can provide DLL-style capabilities under MS-DOS.
Note:	the interrupt handler removes the return address and flags placed on
	  the stack by the INT EC, then jumps to the appropriate function
--------r-ED---------------------------------
INT ED - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
	INT 80 through INT ED are modified but not restored by Direct Access
	  v4.0, and may be left dangling by other programs written with the
	  same version of compiled BASIC
SeeAlso: INT EC"BASIC",INT EE"BASIC"
--------r-EE---------------------------------
INT EE - IBM ROM BASIC - used while in interpreter
Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT ED"BASIC",INT EE"BASIC"
--------r-EF---------------------------------
INT EF - BASIC - ORIGINAL INT 09 VECTOR
Note:	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT EE"BASIC",INT F0"BASIC"
--------O-EF----CX0473-----------------------
INT EF - GEM - INTERFACE
	CX = 0473h
	DS:DX -> GEM parameter block
--------r-F0---------------------------------
INT F0 - BASICA.COM, GWBASIC, compiled BASIC - ORIGINAL INT 08 VECTOR
Note:	BASICA.COM does not restore vector on termination
SeeAlso: INT EF"BASIC"
--------*-F1---------------------------------
INT F1 - reserved for user interrupt
--------s-F1---------------------------------
INT F1 - SPEECH.COM - CONVERT TEXT STRING TO SPEECH
	DS:BX -> '$'-terminated text string
Program: SPEECH.COM is a resident text-to-speech converter by Douglas Sisco
--------s-F1---------------------------------
INT F1 - Andy C. McGuire SPEECH.COM/SAY.COM
SeeAlso: INT F2"SPEECH"
--------U-F1---------------------------------
INT F1 - AQUEDUCT, PIPELINE - GET DATA AREA ADDRESS
Return: AX:BX -> data area
Program: AQUEDUCT and PIPELINE are TSRs by James W. Birdsall to connect COM1
	  and COM2 in software
Note:	The installation check consists of testing for the following signature
	  immediately preceding the interrupt handler: "JWBtvv" where 't' is
	  either "A" for AQUEDUCT or "P" for PIPELINE and "vv" is a two-digit
	  version number
Index:	installation check;AQUEDUCT|installation check;PIPELINE
--------N-F1---------------------------------
INT F1 - NetWare Remote Boot - INSTALLATION CHECK (NOT A VECTOR!)
Note:	if this vector contains the value 5774654Eh ("NetW"), the remote boot
	  BIOS extension is active, and access to the floppy disk is redirected
	  to an image file in the server's SYS:LOGIN directory
----------F1---------------------------------
INT F1 - Common ISDN API (CAPI) v1.1
	AH = function
	    01h API-REGISTER
	    02h API-RELEASE
	    03h API-PUT-MESSAGE
	    04h API-GET-MESSAGE
	    05h API-SET-SIGNAL
	    06h API-DEINSTALL
	    F0h API-GET-MANUFACTURER
	    F1h API-GET-VERSION
	    F2h API-GET-SERIAL-NUMBER
	    FFh API-MANUFACTURER (vendor-specific functions)
	information arrived too late for details to be included in this release
Return: AX = result
Range:	INT 00 to INT FF, selectable by program parameter
Notes:	the caller is required to provide at least 512 bytes of stack space
	the CAPI interrupt handler begins with a header which is nearly
	  identical to the IBM Interrupt Sharing Protocol header
	  (see #1363 at INT 2D), except that the short jump instruction to
	  a hardware reset handler at offset 09h is replaced by the signature
	  bytes "IA"
SeeAlso: INT F1"v2.0"
----------F1---------------------------------
INT F1 - Common ISDN API (CAPI) v2.0
	AL = function
	    01h CAPI_REGISTER
	    02h CAPI_RELEASE
	    03h CAPI_PUT_MESSAGE
	    04h CAPI_GET_MESSAGE
	    05h CAPI_SET_SIGNAL
	    F0h CAPI_GET_MANUFACTURER
	    F1h CAPI_GET_VERSION
	    F2h CAPI_GET_SERIAL_NUMBER
	    F3h CAPI_GET_PROFILE
	    FFh CAPI_MANUFACTURER (vendor-specific functions)
	AH = CAPI version * 10 (14h = 2.0)
	information arrived too late for details to be included in this release
Return: AX = result
Range:	INT 00 to INT FF, selectable by program parameter
Notes:	the caller is required to provide at least 512 bytes of stack space
	the CAPI v2.0 interrupt handler begins with a header (see #2615) which
	  is similar to the IBM Interrupt Sharing Protocol header
	  (see #1363 at INT 2D), yet different from both the ISP header and
	  the CAPI v1.1 header
SeeAlso: INT F1"v1.1"

Format of CAPI v2.0 interrupt handler entry point:
Offset	Size	Description	(Table 2615)
 00h  2 BYTEs	short jump to actual start of interrupt handler, immediately
		  following this data block (EBh 0Fh)
 02h	DWORD	address of next handler in chain
 06h	WORD	signature 424Bh
 08h	BYTE	EOI flag (80h)
		80h primary hardware interrupt handler (will issue EOI)
 09h  2 BYTEs	reserved (0)
		(is short jump to hardware reset routine in ISP header)
 0Bh  4 BYTEs	signature "CAPI"
 0Fh  2 BYTEs	two-digit CAPI version number in ASCII ('20')
SeeAlso: #1363 at INT 2D
--------v-F1---------------------------------
INT F1 - VIRUS - "Violetta" - ???
Note:	used but not chained by virus
SeeAlso: INT E0"VIRUS",INT FF"VIRUS"
--------*-F2---------------------------------
INT F2 - reserved for user interrupt
--------s-F2---------------------------------
INT F2 - Andy C. McGuire SPEECH.COM/SAY.COM
SeeAlso: INT F1"SPEECH"
----------F2---------------------------------
INT F2 - ICCTSR 1.0 - ImageCapture COLOR Developer's Kit - API
	AH = function number (see #2616)
	???
Return: ???
Program: ImageCapture is a product of International Computers
SeeAlso: INT F3"ICCTSR"

(Table 2616)
Values for ImageCapture function:
 01h	power up
 02h	power down
 03h	set controls
 04h	capture image
 05h	display image
 06h	read file
 07h	write file
 08h	write array
 09h	read pixel
 0Ah	write pixel
 0Bh	check if VGA present
 0Ch	set video mode
 0Dh	check for keystroke
 0Eh	delay
--------*-F3---------------------------------
INT F3 - reserved for user interrupt
--------s-F3---------------------------------
INT F3 - SoundBlaster - POINTER TO ECHO VALUE
Note:	this is not a vector, but a pointer to a DWORD containing the echo
	  value selected with SET-ECHO.EXE
SeeAlso: INT 2F/AX=FBFBh
----------F3---------------------------------
INT F3 - ICCTSR 1.0 - HANDSHAKE ID VECTOR
Program: ImageCapture is a product of International Computers
SeeAlso: INT F2"ICCTSR"
--------*-F4---------------------------------
INT F4 - reserved for user interrupt
--------T-F4---------------------------------
INT F4 - DoubleDOS - GIVE UP REST OF CURRENT CLOCK TICK AND ALL OF NEXT TICK
SeeAlso: INT 21/AH=EEh"DoubleDOS",INT FE"DoubleDOS"
--------*-F5---------------------------------
INT F5 - reserved for user interrupt
--------T-F5---------------------------------
INT F5 - DoubleDOS - ???
--------*-F6---------------------------------
INT F6 - reserved for user interrupt
--------T-F6---------------------------------
INT F6 - DoubleDOS - ???
--------*-F7---------------------------------
INT F7 - reserved for user interrupt
--------T-F7---------------------------------
INT F7 - DoubleDOS - ???
----------F700-------------------------------
INT F7 - FSBBS 2.0 - CONFIGURATION RECORD
	AH = 00h
	AL = function
	    00h get configuration record
		Return: DS:DX -> configuration record
	    01h set configuration record
		 02h get path for option
		DS:DX -> option name
		Return: DS:DX -> path
	    03h determine whether configuration record set
		Return: AX = status
			    0000h set
			    0001h not yet set
	    04h get link state
		Return: AX = state
			    0000h unlinked
			    0001h linked
Notes:	this information is preliminary and still subject to change
	all of the INT F7 calls for FSBBS are used for interprogram
	  communication between the BBS kernel and the programs it spawns
SeeAlso: AH=01h
----------F701-------------------------------
INT F7 - FSBBS 2.0 - USER RECORD
	AH = 01h
	AL = function
	    00h get user record for user currently online
		Return: DS:DX -> user record
	    01h set user record
		DS:DX -> user record
SeeAlso: AH=00h,AH=02h
----------F702-------------------------------
INT F7 - FSBBS 2.0 - GET ACCOUNT NAME
	AH = 02h
Return: DS:DX -> 8-character blank-padded account name
SeeAlso: AH=01h
----------F703-------------------------------
INT F7 - FSBBS 2.0 - TERMINAL NUMBER
	AH = 03h
	AL = function
	    00h get terminal index number
		Return: DX = index number
	    01h set terminal index number
		DX = terminal index
----------F704-------------------------------
INT F7 - FSBBS 2.0 - PASSDATA BUFFER
	AH = 04h
	AL = function
	    00h get PassData buffer contents
		DS:DX -> buffer for PassData contents
	    01h set PassData contents
		DS:DX -> buffer containing new PassData
		CH = length of data in buffer
----------F705-------------------------------
INT F7 - FSBBS 2.0 - TIMER FUNCTIONS
	AH = 05h
	AL = function
	    00h get time remaining
		Return: DX = number of minutes remaining
	    01h get current time
		Return: DS:DX -> 8-character time string
	    02h increment time
		DX = number of additional minutes
	    03h decrement time
		DX = number of minutes
SeeAlso: AH=06h
----------F706-------------------------------
INT F7 - FSBBS 2.0 - FUNCTION AVAILABILITY
	AH = 06h
	AL = function
	    00h determine whether function is available
		DX = index of function
	    01h set function availability
		DX = index of function
		???
SeeAlso: AH=05h,AH=07h
----------F707-------------------------------
INT F7 - FSBBS 2.0 - DUMP FUNCTIONS
	AH = 07h
	AL = function
	    00h get current dump mode
		Return: DL = mode
	    01h set dump mode
		DL = mode
SeeAlso: AH=06h
--------*-F8---------------------------------
INT F8 - reserved for user interrupt
--------h-F8---------------------------------
INT F8 - Sanyo MBC-550 - IRQ0 - 100 HZ INTERRUPT
SeeAlso: INT 08"IRQ0",INT F9"Sanyo",INT FA"Sanyo"
--------T-F8---------------------------------
INT F8 - DoubleDOS - ???
--------*-F9---------------------------------
INT F9 - reserved for user interrupt
--------T-F9---------------------------------
INT F9 - DoubleDOS - ???
--------h-F9---------------------------------
INT F9 - Sanyo MBC-550 - IRQ1 - ???
SeeAlso: INT 09"IRQ1",INT F8"Sanyo",INT FA"Sanyo"
--------*-FA---------------------------------
INT FA - reserved for user interrupt
--------h-FA---------------------------------
INT FA - Sanyo MBC-550 - IRQ2 - SERIAL PORT USART INTERRUPT
Note:	this vector is not used on the Tandy 1000TL
SeeAlso: INT 0A"IRQ2",INT F9"Sanyo",INT FB"Sanyo"
--------T-FA---------------------------------
INT FA - DoubleDOS - TURN OFF TIMESHARING
SeeAlso: INT 21/AH=EAh"DoubleDOS",INT FB"DoubleDOS"
--------*-FB---------------------------------
INT FB - reserved for user interrupt
--------h-FB---------------------------------
INT FB - Sanyo MBC-550 - IRQ3 - KEYBOARD USART RECEIVE INTERRUPT
SeeAlso: INT 0B"IRQ3",INT FA"Sanyo",INT FC"Sanyo"
--------T-FB---------------------------------
INT FB - DoubleDOS - TURN ON TIMESHARING
SeeAlso: INT 21/AH=EBh"DoubleDOS",INT FA"DoubleDOS"
--------*-FC---------------------------------
INT FC - reserved for user interrupt
--------T-FC---------------------------------
INT FC - DoubleDOS - GET CURRENT SCREEN BUFFER ADDRESS
Return: ES = segment of display buffer
Desc:	determine the address of the virtual screen to which the program
	  should write instead of the actual video memory, so that the
	  multitasked programs do not interfere with each other's output
Note:	the display buffer may be moved if multitasking is enabled
SeeAlso: INT 21/AH=ECh"DoubleDOS",INT FB"DoubleDOS"
--------h-FC---------------------------------
INT FC - Sanyo MBC-550 - IRQ4 - ???
SeeAlso: INT 0C"IRQ4",INT FB"Sanyo",INT FD"Sanyo"
--------*-FD---------------------------------
INT FD - reserved for user interrupt
--------T-FD---------------------------------
INT FD - DoubleDOS - ???
--------h-FD---------------------------------
INT FD - Sanyo MBC-550 - IRQ5 - ???
SeeAlso: INT 0D"IRQ5",INT FC"Sanyo",INT FE"Sanyo"
--------S-FD---------------------------------
INT FD - TFPCX - INSTALLATION CHECK
	AH = function (see separate entries below)
Program: TFPCX is an interface between modem and terminal program for packet-
	  radio communications
Notes:	the installation check consists of testing for the string "N5NX" three
	  bytes beyond the interrupt handler; INT FD is the default, but may
	  be changed, so the full installation check consists of scanning
	  for the signature
	TFPCX returns AX=FFFFh on any unsupported function call
SeeAlso: AH=01h,AH=03h,AH=FEh
--------S-FD01-------------------------------
INT FD - TFPCX - TEST FOR CHARACTER WAITING
	AH = 01h
Return: AX = status
	    0000h no characters waiting
	    0001h character available for input
Program: TFPCX is an interface between modem and terminal program for packet-
	  radio communications
SeeAlso: AH=02h
--------S-FD02-------------------------------
INT FD - TFPCX - GET CHARACTER
	AH = 02h
Return: AL = character
Notes:	this call is only allowed if AH=01h indicated that a character is
	  available
	all available characters should be read before sending any additional
	  characters
SeeAlso: AH=01h,AH=03h
--------S-FD03-------------------------------
INT FD - TFPCX - OUTPUT CHARACTER
	AH = 03h
	AL = character to send
SeeAlso: AH=02h
--------S-FDFE-------------------------------
INT FD - TFPCX - GET VERSION
	AH = FEh
Return: AH = major version
	AL = minor version
Program: TFPCX is an interface between modem and terminal program for packet-
	  radio communications
SeeAlso: AH=01h,AH=03h
--------B-FE---------------------------------
INT FE - AT/XT286/PS50+ - destroyed by return from protected mode
Note:	the ROM BIOS uses 0030h:0100h as the initial stack on startup, which
	  is the last fourth of the interrupt vector table.  If the processor
	  is returned to real mode via a hardware reset (the only possibility
	  on an 80286, though there are a number of ways of generating one),
	  then the BIOS startup code stacks three words on its scratch stack
	  before determining that a return to real mode has been requested.
	  As a result, INT FE and INT FF are corrupted.
SeeAlso: INT FF"XT286"
--------T-FE---------------------------------
INT FE - DoubleDOS - GIVE UP TIME
	AL = number of 55ms time slices to give away
Return: after other program (if active) has run
SeeAlso: INT 21/AH=EEh"DoubleDOS",INT F4"DoubleDOS"
--------G-FE---------------------------------
INT FE - Turbo Debugger 8086 v2.5+ - OVERLAY MANAGER
SeeAlso: INT 3F
--------h-FE---------------------------------
INT FE - Sanyo MBC-550 - IRQ6 - ???
SeeAlso: INT 0E"IRQ6",INT FD"Sanyo",INT FF"Sanyo"
--------B-FF---------------------------------
INT FF - AT/XT286/PS50+ - destroyed by return from protected mode
Note:	(see INT FE"XT286")
SeeAlso: INT FE"XT286"
--------b-FF---------------------------------
INT FF - Z100 - WARM BOOT
SeeAlso: INT 40"Z100"
--------h-FF---------------------------------
INT FF - Sanyo MBC-550 - IRQ7 - ???
SeeAlso: INT 0F"IRQ7",INT FE"Sanyo"
--------Q-FF---------------------------------
INT FF U - QEMM-386.SYS v6.0+ - internal
Notes:	requires that a byte in the conventional-memory stub be set to the
	  desired function number (00h through 0Ch)
SeeAlso: #2617

(Table 2617)
Values for QEMM internal functions:
 00h	reflect back to Virtual86-mode interrupt handler (default)
 01h	???
 02h	access DR7???
 03h	QPI upcall (see INT 67/AH=3Fh)
 04h	???
 05h	???
 06h	INT 15/AH=87h
 07h	EMS services (see INT 67/AH=40h,INT 67/AH=5Dh)
 08h	???
 09h	QEMM exception handler
 0Ah	XMS services (see INT 2F/AX=4310h)
 0Bh	Virtual DMA Services (see INT 4B/AX=8102h)
 0Ch	???
--------v-FF---------------------------------
INT FF - VIRUS - "Violetta" - ???
Note:	used but not chained by virus
SeeAlso: INT E0"VIRUS",INT F1"VIRUS"
--------V-FF----BX0000-----------------------
INT FF - PC/FORTH - GRAPHICS API - VIDEO STATUS CHANGE
	BX = 0000h
	DS:SI -> FORTH program counter
	SS:BP -> FORTH parameter stack
	SS:SP -> FORTH return stack
	DS:DX -> FORTH video parameter area
Desc:	called to inform graphics driver of any status changes such as video
	  mode changes, character color changes, graphics XOR mode turned on
	  or off, etc.
--------V-FF---------------------------------
INT FF - PC/FORTH - GRAPHICS API
	BX = function number
		 0001h function REDRAW
		 0002h function !PEL
		 0003h function @PEL
		 0004h function LINE
		 0005h function ARC
		 0006h function @BLOCK
		 0007h function !BLOCK
		 0008h function FLOOD
	DS:SI -> FORTH program counter
	SS:BP -> FORTH parameter stack
	SS:SP -> FORTH return stack
	details of parameters not available
--------!---Admin----------------------------
Highest Table Number = 2617
--------!---FILELIST-------------------------
Please redistribute all of the files comprising the interrupt list (listed at
the beginning of the list and in INTERRUP.1ST) unmodified as a group, in a
quartet of archives named INTER45A through INTER45D (preferably the original
authenticated PKZIP archives), and the utility programs in a fifth archive
called INTER45E.ZIP.
8086 Assembly Lanaugage Clear the screen

8086 Assembly Lanaugage Program to Draw a box

8086 Assembly Writing Directly to Video Memory B800

8086 Assembly Causes a Delay in terms of 1 60 of a second Delay Macro

8086 Assembly Hello World Application

8086 Assembly Terminate the program and return to Dos prompt

8086 Assembly Language Wati for a keystroke or pause macro

8086 Assembly Language Delay Macro

8086 Game Programming Collusion Detection

8086 Assembly Game Collusion Detection Macro

8086 Assembly Lanuage Set the video display mode

8086 Write matrix of bytes to a memory game pogramming

8086 Assembly Language code procedure for delay

8086 Code Type String or Display String

8086 Assembly Language Convert from Hex to ascii

8086 Assembly Language Press Any Key to Continue Dialog

8086 Assembly Dialogbox or display a box with shadow in text mode

8086 Assembly cls clrscr or clear the screen

8086 assembly language read a string using standard input keyboard

8086 assembly language compare two strings strcmp procedure

8086 Assemly file io proc procedure to open a file

8086 Interrupt List

8086 Assembly Close FIle. Close a file opened for read write

8086 assembly language

8086 Assembly Language Sound Blaster Programming Play wav File

8086 assembly language program to play sound using pc speaker



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