Ideally you need only ony DX that is DH for row and DL for coloumn to get the curosr position. 
the remaining CX are used for the size. 



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


If u think u need a sample come or further explanation. send me a mail its in the contact details. I will help u with what ever i can.