Category: video
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