Mail Archives: djgpp/2003/08/07/05:46:14
Avi Berkovich <berkovis AT 012 DOT net DOT il> wrote:
> Hello,
> After running my old Vesa VBE2 code on XP, I realized that the DPMI
> function for mapping a physical address for the LFB doesn't work under XP.
In Windows XP support for any kind of direct, and sometimes even for
_indirect_, hardware access by DOS programs is somewhere between
miserable and non-existant.
In particular, you can mostly forget about any VBE support whatsoever.
The only thing you can get to work somewhat reliably are the original
VGA/MCGA modes from 13 years ago, i.e. 640x480 AT 16 and 320x200 AT 256
In other words: for this kind of program, you better stay away from XP.
--
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.
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