On Fri, 2003-01-10 at 15:10, Jurgen Kramer wrote:
> a) a kernel build for a VIA C3 doesn't use MMX, userspace programs can
> still use it
Basically true. It might be instructive to do more benching on this with
the C3 and MMX especially if the new cores add full prefetch stuff
> b) Both kernel and userspace can't use MMX any more
MMX is designed to need no OS support. SSE/SSE2 do need OS helpers but
not MMX.
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