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X86_64
hi all,
I read everything and its opposite :-(
the core2 (penryn) have or not instruction popcnt()?
thx
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 Bruno
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11/28/2008 8:42:11 AM |
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(Bruno Causse) <spamtrap@crayne.org> wrote:
>
>I read everything and its opposite :-(
>
>the core2 (penryn) have or not instruction popcnt()?
No. Penryn includes a large subset of SSE4 (also called SSE4.1), but it
does not include 7 of the instructions (CRC32, PCMPESTRI, PCMPESTRM,
PCMPISTRI, PCMPISTRM, PCMPGTQ, and POPCNT). The full set is called SSE4.2
and first appeared in Nehalem.
--
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.
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Tim
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11/28/2008 7:27:01 PM
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