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Subject: Re: FirstBit() in assembler

Author: Bo Persson

Date: 10:21:14 01/14/02

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On January 13, 2002 at 15:12:30, Severi Salminen wrote:

>>I do something like this (Dann Corbit's trick):
>>
>>        bsf eax dword ptr bitboard+4
>>        add eax 32
>>        bsf eax dword ptr bitboard
>>
>
>I'm doing allmost the same, but is it _certain_ that the 2nd bsf _never_ alters
>eax if nothing is found? Why don't they write "unaffected" but "undefined"???Can
>someone confirm this?
>
>Severi

This is like over-clocking the specification. It *seems* to work, even though
Intel says it should not.

As usual this probably means that it works fine, except during any WCCC event.

Bo Persson
bop2@telia.com



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