Newsgroups:	comp.os.msdos.djgpp
From:	Elliott Oti <oti AT phys DOT uu DOT nl>
Subject:	Re: -O3 and -O2 breaks my NASM code
Sender:	usenet AT phys DOT uu DOT nl (News system Tijgertje)
Message-ID:	<Pine.OSF.4.03.9809181526100.26441-100000@ruunf0.phys.uu.nl>
In-Reply-To:	<6ttip0$ng8$1@news2.saix.net>
Date:	Fri, 18 Sep 1998 13:27:17 GMT
References:	<6ttip0$ng8$1 AT news2 DOT saix DOT net>
Mime-Version:	1.0
Organization:	Physics and Astronomy, University of Utrecht, The Netherlands
Lines:	23
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

On Fri, 18 Sep 1998, Rylan wrote:

> Hi,
> 
> I've ran into a situation where attempting to use -O3 and even -O2 with ANY
> code that calls NASM compiled functions (in their own, seperate .O) compiles
> fine but crashes the moment the NASM code is reached. This happens without a
> stack trace, nothing - the whole program just stops. Unoptimized compiles of
> the same code runs 100%.
> 
> Any ideas why, and how I can get NASM code to coexist with optimised DJGPP
> code?

Do you save all registers before calling the NASM functions? Does it still
crash even if you pop all registers?

  Elliott Oti
  http://www.fys.ruu.nl/~oti
  "Q: What did the elephant say to the naked man?
   A: It's cute but can you pick up peanuts with it?"

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