Xref:	news2.mv.net comp.os.msdos.djgpp:3544
From:	terra AT diku DOT dk (Morten Welinder)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Memory problem
Date:	5 May 1996 19:55:04 GMT
Organization:	Department of Computer Science, U of Copenhagen
Lines:	22
Sender:	terra AT tyr DOT diku DOT dk
Message-ID:	<4mj12o$r72@vidar.diku.dk>
References:	<4mdcv7$2qgu AT venere DOT inet DOT it>
NNTP-Posting-Host:	tyr.diku.dk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

edoardo AT smartcom DOT it (Edo) writes:

>Can anyone help me with this little piece of code?

[snipped!]

Several problems:

1. You _must_ tell gcc what registers you're trashing in your
   assembler code.  Lokk up "extended asm" in the gcc info
   files.

2. _Don't_ use segment overrides as part of the addresses.
   (Use "es" as a separate instruction on the line before;
   this is a gas bug.)

3. You must restore the ES register yourself.

I don't have my machine here so I haven't actually tried your
code.  The above problems might be the key, though.

Morten

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