[comp.sys.ibm.pc.programmer] SVGA register programming

tpf@jdyx.UUCP (Tom Friedel) (03/05/90)

I am still looking for any information on setting SVGA modes,
mainly 256 color, with out using the BIOS.  This is by definition
chip-set specific, and is often video card specifuc.  I was also
wondering how OS/2 handles this (do they load the video BIOS?)
I've had better luck with the chip-set technical manuals than 
unassembling the BIOS, but there has to be a better way.
Commercial references welcome.

tom jdyx!tpf
 
-- 
Tom Friedel  JDyx Enterprises (404) 320-7624 tpf@jdyx.UUCP 
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nelson@sun.soe.clarkson.edu (Russ Nelson) (03/05/90)

In article <1990Mar4.211117.15287@jdyx.UUCP> tpf@jdyx.UUCP (Tom Friedel) writes:

   I am still looking for any information on setting SVGA modes,
   mainly 256 color, with out using the BIOS.  This is by definition
   chip-set specific, and is often video card specific.
   I've had better luck with the chip-set technical manuals than 
   unassembling the BIOS, but there has to be a better way.

An answer:
    Have you ever seen John Bridges' VGAKIT?  It contains code to detect and
    bank switch many (all?) of the VGA chip sets.
A question:
    Where did you get chip-set technical manuals?  If you got them from the
    manufacturers, could you post the names and addresses?

--
--russ (nelson@clutx [.bitnet | .clarkson.edu])  Russ.Nelson@$315.268.6667
Violence never solves problems, it just changes them into more subtle problems