From: "Alexei A. Frounze" <alex DOT fru AT mtu-net DOT ru>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Inline ASM
Date: Fri, 24 Mar 2000 22:41:22 +0300
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Yes, I tried. I have *really* working program.

VGAsel is selector coresponding to allocted descriptor that points to
the realmode 0A000h segment.

IMO there is no lobbering. But sure, I should specify used registers.


Dieter Buerssner wrote:
> Alexei, have you tried this? It can't work in general, because
> your inline assembly clobbers registers eax and edi, without
> giving the compiler a chance to know this. I.e. when declaring
> 
> unsigned short VGA_sel;
> 
> and commenting everything besides the inline assembly,
> the compiler w'ont generate code that saves edi accross the function
> call...

-- 
Alexei A. Frounze