Int 10 Fn 03  - Video - Get Cursor Position And Size                       [V]

   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

See Also: AH=01h,AH=02h,AH=12h/BL=34h