From mboxrd@z Thu Jan  1 00:00:00 1970
From: Grant Grundler <grundler@parisc-linux.org>
Subject: Re: [parisc-linux] Re: pa_memcpy: 2 small question
Date: Mon, 10 Jan 2005 10:17:10 -0700
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To: Joel Soete <soete.joel@tiscali.be>
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On Mon, Jan 10, 2005 at 06:12:24PM +0100, Joel Soete wrote:
> well any way if no trap occurs the results is put in %r0: I don't yet well
> understand this usage of %r0 as target reg (excepted for prefetching)?

writes to %r0 are simply discarded.
It's a handy target when we don't care about the result since
it will not cause any interlocks with previous or succesive instructions.

grant
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