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Date:      Wed, 16 Oct 2002 13:01:24 -0700
From:      Kris Kennaway <kris@obsecurity.org>
To:        Mark Miller <joup@bigfoot.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: CPU_ENABLE_SSE on a P2 Celeron?
Message-ID:  <20021016200124.GB13748@xor.obsecurity.org>
In-Reply-To: <20021015200131.O77260-100000@soda.csua.berkeley.edu>
References:  <20021015200131.O77260-100000@soda.csua.berkeley.edu>

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On Tue, Oct 15, 2002 at 08:04:10PM -0700, Mark Miller wrote:
>=20
> As far as I can tell, SSE applies only to pentium III cpus and later; is
> this correct?  dmesg reports for me
>=20
> CPU: Pentium II/Pentium II Xeon/Celeron (399.10-MHz 686-class CPU)
> Origin =3D "GenuineIntel"  Id =3D 0x665  Stepping =3D 5
> Features=3D0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,=
CMOV,PA
> T,PSE36,MMX,FXSR>
>=20
> Would enabling SSE in my kernel have any ill (positive) effects?

The Pentium II does not support SSE (as you can see from the above
feature list).

Kris

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