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Subject: Re: Bitscanning on the Opteron

Author: Anthony Cozzie

Date: 05:52:10 12/05/03

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Three questions:

1. What is the performance of the hardware bitscan, that is:

__asm("bsf %0, %1")

2. It would be very interesting to try again with the order of the masks
changed.  Eugene's version has an easy time of it because of the order (I
think).

3. Has anyone worked on optimizing popcount/FindMSB for the hammer?

anthony



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