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SubjectRe: missing mxcsr initialization
On Thu, Oct 26, 2000 at 02:17:31AM +0200, Andrea Arcangeli wrote:
> > INTEL as well as the feature bit before enabling XMM and FXSR features (AMD
> > also has fxsr, but we currently don't do anything with it). I moved the
>
> FXSR is supported and it just works fine on Athlon too with the PIII patch.
> About XMM that bit is honoured by AMD specs too and it's mentioned explicitly
> that when that bit is enabled stremaming SIMD instructions (SSE) are supported
> by the CPU (that should be the case of an x86-64 when booted with an IA32
> kernel). So I'd trust that bit too all over the x86 implementations as we
> _just_ do with PSE/PGE and friends since a long time ago.

In addition VIA/Cyrix has announced to support SSE in their new Samuel CPU too
and I doubt they'll use a different bit.

-Andi
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