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Subject: Re: Bitboard rotations -- how to move more than one bit at a time...

Author: Dann Corbit

Date: 00:03:58 06/02/02

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On June 01, 2002 at 08:12:39, James Swafford wrote:
[snip]
>I'm curious, though - what do you need to rotate that you're not doing
>incrementally in make()?  Updating a rotated board incrementally takes
>two table indexes and an xor.  If you're not updating incrementally,
>I'm guessing you're not using that bitboard in your move generator, so
>what's up? :)

suppose that you want to be able to change from 0x88 to bitboard (and back) as
quickly as possible.  If you don't have a full bitboard setup, you want to get
there as quickly as possible.



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