Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!ucsd!swrinde!cs.utexas.edu!uunet!comp.vuw.ac.nz!am.dsir.govt.nz!marcamd!mercury!kcbbs!kc
From: Gary_Wong@kcbbs.gen.nz (Gary Wong)
Newsgroups: comp.os.msdos.programmer
Subject: Determining Video Subsystem Type ...
Message-ID: <1991Jun20.001034.14362@kcbbs.gen.nz>
Date: 20 Jun 91 00:10:34 GMT
References: <1991Jun14.133809.14503@eng3.sci.com>
Lines: 21
Organisation: Kappa Crucis Unix BBS, Auckland, New Zealand

Well I'm no expert on this, and can't help you for detecting a super 
vga, but it doesn't look like anybody's replied so here's some assembly 
that will detect what you want through the BIOS:
Call function $1A of interrupt $10 with AL set to 0, and you will get 07 or $0
$07 or $08 returned in BL if a VGA is active.  You will also get $0A 
or $0B if they have an MCGA.  If you get any other result, or if AL 
is not set to $1A, then check for other cards:

Call INT $10 with AH=$12, BL = $10.  If BL is returned as $10, they 
don't have an EGA, so keep looking...

Call  INT $10 , AH = $0F, and if AL is 7 then they have either a mono 
adapter or a Hercules.

Otherwise they could have anything.  Probably a CGA, but possibly something 
like the built in PCjr graphics.  

Don't count on this working.  I have used it before & it works on standard 
stuff, but it won't detect super vga.  Good luck anyway.

Gary.