From: Brian Gerst <bgerst@didntduck.org>
To: sampersy@gmail.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: What does that "%U0" and "%X0" mean
Date: Fri, 07 Oct 2005 08:46:38 -0400 [thread overview]
Message-ID: <43466E2E.7030403@didntduck.org> (raw)
In-Reply-To: <007701c5cb37$da03d050$c901a8c0@sp>
sampersy@gmail.com wrote:
> What does that "%U0" and "%X0" mean in
> __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
>
> does any reference existing ?
The X and U prefixes are arch specific. This looks like ppc code. The
only references I've every found are the gcc source code. The gcc
source says:
U: Print 'u' if this has an auto-increment or auto-decrement.
X: Print 'x' if this is an indexed address.
--
Brian Gerst
prev parent reply other threads:[~2005-10-07 12:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-07 12:08 What does that "%U0" and "%X0" mean sampersy
2005-10-07 12:46 ` Brian Gerst [this message]
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