linux-mips
[Top] [All Lists]

Re: system.h asm fixes

To: Ralf Baechle <ralf@oss.sgi.com>
Subject: Re: system.h asm fixes
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Date: Wed, 19 Jun 2002 19:16:41 +0200 (MET DST)
Cc: Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de>, linux-mips@oss.sgi.com
In-reply-to: <20020618025204.A28165@dea.linux-mips.net>
Organization: Technical University of Gdansk
Sender: owner-linux-mips@oss.sgi.com
On Tue, 18 Jun 2002, Ralf Baechle wrote:

> > How can this work? A grep shows many instances of $1 usage,
> 
> Uses by assembler code only, not gcc.  Therefoe we don't need to protect
> C code against use of $at.

 Moreover, gcc assumes ".set at" is always in effect and includes macros
in its output that are known to clobber $1 and don't work with ".set
noat". 

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


<Prev in Thread] Current Thread [Next in Thread>