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Subject: Re: There is huge potential to improve further

Author: Gerd Isenberg

Date: 00:30:33 07/11/03

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On July 10, 2003 at 21:05:09, Russell Reagan wrote:

>Thanks Gerd. This method seems approximately equal to the bsf assembler method
>in speed on my Athlon (maybe a hair slower). Maybe this will be the fastest on a
>64-bit cpu?

On x86-32 Walter's routine should be faster - due the mul64 call with three 32
bit muls (vector path on athlon). On x86-64 there is only one mul rax, and that
is double direct path.

Gerd

• Re: There is huge potential to improve further Walter Faxon 06:03:06 07/11/03
  • Re: There is huge potential to improve further Walter Faxon 06:47:17 07/11/03
    • Re: There is huge potential to improve further Gerd Isenberg 14:25:07 07/11/03
    • Re: There is huge potential to improve further Gerd Isenberg 10:53:19 07/11/03
      • Re: There is huge potential to improve further Russell Reagan 11:14:17 07/11/03
        • Re: There is huge potential to improve further Gerd Isenberg 11:24:52 07/11/03
  • Re: There is huge potential to improve further Gerd Isenberg 06:37:21 07/11/03

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