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Mail Archives: djgpp/1994/12/08/02:55:14

From: rossi AT cs DOT unibo DOT it (Davide Rossi)
Subject: Re: V2 and commercial level programs
To: dj AT stealth DOT ctron DOT com (DJ Delorie)
Date: Thu, 8 Dec 94 1:04:49 MET
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu

> 
> The part that doesn't work in DPMI currently is go32's automatic page
> frame based graphics memory window moving routines, which give you a
> virtual frame buffer.
> 
> You've always been able to write to the graphics window yourself,
> provided you knew how to move the vram window.  In V2, this is how you
> have to do it.
> 
So we simply need to add some VESA Bios Extension routine in a basic gfx
library (without having to mess with CBGRX) and the toy will be back again,
is this right?
A question about that: in VBE paging can be done usign both interrupt and
a far procedure call (an interrupt gives you the address to call).
Are there any tourble calling such a thing from DPMI?

Cheers,
	Davide.

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