On 4/6/07, Ed Schouten <ed_at_fxq.nl> wrote: > * Nikolas Britton <nikolas.britton_at_gmail.com> wrote: > > The legacy bits don't upset me, what upsets me is sacrificing > > performance so we can support a minority of legacy systems. IIRC? we > > could recode the Kernel for SSE2 math if the processor was guaranteed > > to have that SSE2. SSE2 adds 214 new instructions to the existing x86 > > instruction set. > > But SSE2 isn't even used in kernel space, not even on AMD64. As far as I > can see, the only exception I can see is pagezero. Just take a look at > src/sys/conf/kern.mk. If it's not even possible to use SSE2 in > kernelspace on amd64, why would it be possible to do so on i386? > Doesn't Apple use SSE2/3 in the kernel? IIRC Mac OS X (Darwin) running on a white box PC won't even boot if it's missing.Received on Fri Apr 06 2007 - 18:48:00 UTC
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