Mail Archives: djgpp/2001/06/09/16:00:20

From: Jonathan Kirwan <jkirwan AT easystreet DOT com>
Newsgroups: comp.lang.asm.x86,comp.os.msdos.djgpp
Subject: Re: error linking asm module
Approved: CLAX86 Moderators <ccrayne AT crayne DOT org>
Date: Sat, 9 Jun 2001 19:45:48 +0000 (UTC)
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I'm not the least bit familiar with AT&T syntax, using only MASM.  I'm
not in COMD, but in CLAX.  But I've a few questions.

On Sat, 09 Jun 2001 13:41:36 GMT, rendeg AT my-dejanews DOT com (Rennie
deGraaf) wrote:

>    and 0x01, %eax

Is this intentional?  I noticed that elsewhere, you appeared to use a
'$' before inline instruction constants (code space.)  Here, there is
no '$'.

>    movb $_buffer, %cl

Given what I can guess about the syntax, this attempts to move the
address of _buffer to CL.  Of course, the address is 32 bits and CL is
only 8.  Is this a possible source for the error?  And also, where do
you initialize the upper 24 bits of ECX?  I see you save it, but I
must have missed where you initialize it.

>    movb %al, _newkey(%ecx)

What does this do??  And should there be a $ in front of the _newkey?
I might have guessed that ECX is a pointer, but above you only init 8
bits of the address.  So that can't be it.

Hopefully someone better informed will help.


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