X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 10 - video

Click above to get retro games delivered to your door ever month! X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 10 - video - read light pen position (all but ps)

[<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]

INT 10 - VIDEO - READ LIGHT PEN POSITION (all but PS)
        AH = 04h
Return: AH = 00h light pen switch not activated
           = 01h light pen values in registers
            DH,DL = row,column of current position
            CH = raster line (0-199) (EGA) old graphics modes
            CX = (EGA) raster line (0-nnn) new graphics modes
            BX = pixel column (0-319 or 0-639)

Online resources provided by: http://www.X-Hacker.org --- NG 2 HTML conversion by Dave Pearson