AX = 3912h BL = 03h CL = new mode (00h fast, FFh BIOS) Return:AL = old compatibility mode SI,DI,DS,ES preserved
Return:AL = old compatibility mode SI,DI,DS,ES preserved
See Also: AX=3900h - AX=3912h/BL=04h
Category: Video - Int 2Fh - K
