File IO in 8086

Open a file . This is only a procdure. U can go to index to get other procedures. for reading and writing files using 8086 assembly language


fopen proc near               ; requires si (offset filename)
     mov ah,3dh               ; on error cf is set and returns error code in
     mov dx,si                ; ax
     mov al,02h
     int 21h
     jc error_fopen_12
     mov word ptr [file_handle],ax
     ret
     error_fopen_12:
     stc
     ret
endp
file_handle dw 0