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Mail Archives: djgpp/2002/04/03/01:17:37

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From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: help with inline AT&T assembly
Date: Wed, 03 Apr 2002 08:57:30 +0300
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Sterten wrote:
> 
> I wanted to convert my inner loop to assembly ,
> it did compile but it doesn't do what the C-routine does.
> I'm new to AT&T syntax , where is the mistake ?

I think the order of the operands is wrong: the AT&T syntax reverses them
(first source, then destination).  That is, "movl %%ebx,%1" puts what's in
EBX into the 1st arg, not the other way around.  The same reversal of
operands happens with addl.

I believe this is explained in section 17.1 of the DJGPP FAQ list.

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