Re: [PATCH][2.5][RFT] sfence wmb for K7,P3,VIAC3-2(?)

Dave Jones (davej@codemonkey.org.uk)
Tue, 1 Apr 2003 17:26:15 +0100


On Tue, Apr 01, 2003 at 11:07:21AM -0500, Zwane Mwaikambo wrote:

> > Yes, you're correct. It was SSE1, not SSE2.
> > The problem Zwane encountered is that early Athlons don't support SSE1,
> > only XP+ do
>
> hmm wouldn't they illegal op? Some tested this on an Athlon 600.

I'm not 100% sure on this, but I *think* 3dnow had an sfence which was
opcode compatable with SSE's instruction.

Dave
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