From:	"A. Sinan Unur" <asu1 AT cornell DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Help! Confused by problems with VESA programming.
Date:	Tue, 08 Jul 1997 09:53:27 -0400
Organization:	Cornell University
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Sender:	asu1 AT cornell DOT edu (Verified)
Message-ID:	<33C24657.4AF6@cornell.edu>
References:	<5psfn0$mpi$1 AT pulp DOT ucs DOT ualberta DOT ca>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Jon Martin wrote:
> 
> int main(void)
>         {
>         VBE_VgaInfo vgainfo;
>         VBE_ModeInfo modeinfo;
>         unsigned char colour;
>         int done = 0;
>         int y;
>         unsigned char virtscreen[307200];

i haven't checked the rest of the code but this probably is the culprit.
the default stack size for djgpp programs is 256K. you are asking for
about 300K. you could stubedit this to 1 Mb and see if it makes a
difference. however, a better programming practice would be to allocate
the memory for the virtual screen from the heap (using malloc).

  -- Sinan

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