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Subject: Re: BitScan with reset - not so impressive with 3DNow!

Author: Jeremiah Penery

Date: 08:03:09 12/04/02

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On December 04, 2002 at 04:39:10, Gian-Carlo Pascutto wrote:

>On December 03, 2002 at 16:14:57, Jeremiah Penery wrote:
>
>>BSF/BSR on a P3 are like 1-2 cycle operations.  On Athlon, they're more than 10
>>cycles, plus they block other execution resources.
>
>How about the P4?
>
>--
>GCP

I assumed P4 was the same as P3, but I never could find instruction timing data
for P4.



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