From owner-freebsd-stable  Thu Aug 16 18:34:43 2001
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Date: Thu, 16 Aug 2001 18:34:38 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: Juha Saarinen <juha@saarinen.org>
Cc: 'Kenneth W Cochran' <kwc@world.std.com>,
	'Kris Kennaway' <kris@obsecurity.org>, freebsd-stable@FreeBSD.ORG
Subject: Re: New kernel option CPU_ENABLE_SSE
Message-ID: <20010816183438.A81246@xor.obsecurity.org>
References: <200108162200.SAA21031@world.std.com> <01ef01c1269f$4f5635b0$0a01a8c0@den2>
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In-Reply-To: <01ef01c1269f$4f5635b0$0a01a8c0@den2>; from juha@saarinen.org on Fri, Aug 17, 2001 at 10:03:41AM +1200
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On Fri, Aug 17, 2001 at 10:03:41AM +1200, Juha Saarinen wrote:
> Go to Intel's Web site?
>=20
> Pentium 4, for instance, comes with SSE2.
>=20
> Is there anything in the FreeBSD OS code that makes use of SSE?

No.  There are one or two ports which have SSE asm code as an option,
but I don't think they've been changed to use it where applicable
(i.e. based on CPUTYPE).  The kernel mods are just to allow software
to use SSE at all (saving and restoring registers properly on context
switch, etc).

Kris

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