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Date: Fri, 19 Mar 2010 22:25:41 +0300
From: Dmitry Marakasov <amdmi3@amdmi3.ru>
To: Steve Kargl <sgk@troutmask.apl.washington.edu>
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Cc: svn-src-head@freebsd.org, Xin LI <delphij@freebsd.org>,
	svn-src-all@freebsd.org, src-committers@freebsd.org,
	Matthew Jacob <mj@feral.com>
Subject: Re: svn commit: r205307 - head/sys/i386/conf
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* Steve Kargl (sgk@troutmask.apl.washington.edu) wrote:

> Can you explain?  AFAIK, SSE including floating point
> instructions.  Floating point operations aren't allowed
> in the kernel.

Afaik, there are also effecient memory copy/move/fill instructions,
that do not require floating point context. For example, movnti is
used in sse2_pagezero().

-- 
Dmitry Marakasov   .   55B5 0596 FF1E 8D84 5F56  9510 D35A 80DD F9D2 F77D
amdmi3@amdmi3.ru  ..:  jabber: amdmi3@jabber.ru    http://www.amdmi3.ru