From:	Francisco Gochez <arcanix AT erols DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Referencing externs from assembly modules
Date:	19 Oct 1996 16:20:33 GMT
Organization:	None
Lines:	10
Message-ID:	<54av4h$n5i@boursy.news.erols.com>
NNTP-Posting-Host:	spg-as40s44.erols.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

The GAS documentation states that any undefined symbol is automatically 
assumed to be external.  I have an assembly routine which might be 
considerably faster if I can use external variables, but I haven't been 
able to so far.  Whenever I use them, I get stack faults.  For example, 
say I have the following:
unsigned char *map;
I was using "_map" to refer to it from the assembly module, but it won't 
work.  I don't want to post the rountine , as it's somewhat long, but I 
will if it is really needed.  Can anyone help me out?

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