TIP: Click on subject to list as thread! ANSI
echo: 80xxx
to: ERIC NADEAU
from: HUGH NOLAND
date: 1997-07-22 09:36:00
subject: Re: Change video mode

Eric Nadeau wrote to Marc Melvin:
EN> ah and al are two 8 bits registers. To change your videomode with the
EN> BIOS, you put a 0 in ah and your videomode in al (and set bit 7 so it
EN> doesn't clear the screen). So it'd be:
EN>
EN> mov ah,0
EN> mov al,10000000xb + 3
EN> int 10h
 
I think the desire is to preserve some graphics on the screen on return
to text mode.  I don't know whether this is possible, but the code
above doesn't do it on my machine.  Instead, the original text screen
appears with every other column blacked out.
--- Maximus/2 3.01
---------------
* Origin: Madman BBS * Chico, California * 916-893-8079 * (1:119/88)

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