linux-kernel - Re: Spinlock assembly clarification

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Message-ID: <1310971310.2509.27.camel@edumazet-laptop>
Date:	Mon, 18 Jul 2011 08:41:50 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Frank Coldwell <spaceportz@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Spinlock assembly clarification

Le lundi 18 juillet 2011 à 09:30 +0400, Frank Coldwell a écrit :

> So to understand this I look at intel manual for these instructions,
> and I could not find anything
> for instruction xaddw ??
> 

Look for XADD

The W suffix means we operate on a 16bit word.

http://faydoc.tripod.com/cpu/xadd.htm


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