From: Frank Rowand <frank_rowand@mvista.com>
To: Jim Duey <jduey@ccc-dcs.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: PPC 405 Register Model
Date: Tue, 30 Oct 2001 12:31:37 -0800 [thread overview]
Message-ID: <3BDF0E29.8FFB2C7@mvista.com> (raw)
In-Reply-To: 3BD813CE000007B2@charlotte.ccc-dcs.com
Jim Duey wrote:
>
> I'm needing to do some inline assembly for the Walnut board running MVista's
> Hard Hat Linux and I'm concerned about clobbering registers. Can someone
> point me to docs or source code that describes the register usage of HHL on
> the 405GP?
If you use variable names instead of hard coding register numbers you
don't have to worry about clobbering registers. For example, look
at include/asm-ppc/atomic.h and you can find documentation of inline
assembly at:
http://gcc.gnu.org/onlinedocs/gcc-2.95.2/gcc_4.html#SEC93
-Frank
--
Frank Rowand <frank_rowand@mvista.com>
MontaVista Software, Inc
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-10-30 20:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-30 17:58 PPC 405 Register Model Jim Duey
2001-10-30 18:54 ` Jerry Van Baren
2001-10-30 20:31 ` Frank Rowand [this message]
2001-10-30 19:54 ` Scott Anderson
2001-10-30 20:53 ` Peter Barada
-- strict thread matches above, loose matches on Subject: below --
2001-10-30 19:40 Jim Duey
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