Messages in this thread | | | Date | Tue, 09 Sep 2008 10:01:44 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [git pull] x86 fixes |
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Andi Kleen wrote: > Krzysztof Halasa <khc@pm.waw.pl> writes: > >> Linus Torvalds <torvalds@linux-foundation.org> writes: >> >>> - "modern 32-bit": PPro and better. Can take CMOV, MMX and TSC for >>> granted. >> VIA C3 (Samuel 2/Ezra, 600 - 1000 MHz?, common on VIA EPIA-*: home >> theatres etc) can't CMOV. > > AFAIK they fixed that in newer BIOS with a microcode update. It's > slow, but it works. >
Yes, but if it's slower than jmp+mov than you actively want to avoid it.
-hpa
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