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Message-ID: <4639A527.5080909@argo.co.il>
Date:	Thu, 03 May 2007 12:02:31 +0300
From:	Avi Kivity <avi@...o.co.il>
To:	Andi Kleen <ak@...e.de>
CC:	Ulrich Drepper <drepper@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Why ssse3?

Andi Kleen wrote:
> On Thursday 03 May 2007 00:56:26 Ulrich Drepper wrote:
>   
>> Andi Kleen wrote:
>>     
>>> Nope. SSE3 != SSSE3. The additional S means Supplemential.
>>>
>>> It's probably because the few changes didn't justify a SSE4
>>>       
>> OK, the problem is that the actual sse3 bit is misnamed.  According to
>> Intel's docs bit 0 of ECX is "sse", the kernel uses "pni".  Too bad.
>>     
>
> PNI (Prescott New Instructions) was the original engineering code name. Unfortunately
> it was added too early before the marketing name was known and then it couldn't be 
> changed anymore.
>   

Perhaps sse3 could be added as an alias to pni.


-- 
error compiling committee.c: too many arguments to function

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