Int 10/AH=12h/BL=35h

VIDEO - ALTERNATE FUNCTION SELECT (PS) - DISPLAY-SWITCH INTERFACE

AH = 12h
BL = 35h
AL = subfunction
00h initial adapter video off
01h initial planar video on
02h switch active video off
03h switch inactive video on
80h *UNDOCUMENTED* set system board video active flag
ES:DX -> buffer for 128 byte save area (if AL = 00h-03h)

Return:
AL = 12h if function supported

Desc: Switch between two video adapters which may otherwise have address conflicts

See Also: AX=BF00h - AX=BF01h - INT 6D"VGA"

Category: Video - Int 10h - V

Interrups Categories Contents

Shopping
Forum
EMail
Index
Home