From:	"d-range!" <d-range AT thefridge DOT et DOT fnt DOT hvu DOT nl>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: WATCOM #pragma to DJGPP __asm__ ?!!
Date:	Mon, 26 Jan 1998 22:31:23 +0100
Organization:	World Online
Lines:	31
Message-ID:	<34CD00AB.8C850269@thefridge.et.fnt.hvu.nl>
References:	<199801260623 DOT WAA01719 AT adit DOT ap DOT net>
NNTP-Posting-Host:	hlv1-p233.worldonline.nl
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Nate Eldredge wrote:

> >My question: how can I make inline functions like this one to work with
> >DJGPP. I read the DJGPP assembler tutorial, and I know you can #define the
> >function like this,
> >
> >#define FixSHR(arg1,arg2,arg3) __asm__ \
> >            "sarl %1,%0" \
> >       : "=r" (arg3) \
> >       : "0" (arg1), "1" (arg2) \
> >       : "0";
> Try this:
> inline int FixSHR(int n, unsigned c)
> {
>    int result;
>    asm ("sarl %2,%0"
>         : "=g" (result)
>         : "0" (n), "cI" (c));
>    return result;
> }

Does this produce *inline* assembly? It looks like if the compiler makes a CALL
for every invocation.

> Incidentally, since your operands are `int', `FixSHR(a,b)' has the same
> effect as `a >> b'.

Ah... WATCOM always does SHR instead of SAR

d-range!                  d-range AT thefridge DOT et DOT fnt DOT hvu DOT nl

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