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Subject: Re: kogge-stone, rotated bitboards, "raytracing" - on 32 or 64-bit platf

Author: Tony Werten

Date: 23:14:32 10/01/04

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On October 01, 2004 at 19:41:24, Gerd Isenberg wrote:

>On September 28, 2004 at 17:49:21, martin fierz wrote:
>
>>On September 27, 2004 at 17:27:45, Gerd Isenberg wrote:
>>
>>>On September 25, 2004 at 06:21:13, martin fierz wrote:
>>>
>Yes, Kogge-Stone and even more dumb7fill do often a lot of "stupid" work.
>But 4 for 1 compensates that a bit. Depending on the design, one may profit from
>the other parallel nature of fill-routines - to work setwise (not to mention
>bitscanless).
>
>That becomes even more interesting if you feed up a set of safe target squares
>of a sliding piece to get a set of progessive mobility - move targets in two
>moves.
>

I was thinking about that.

Generate safe squares for a piece, feed the resulting BB back to the generate
squares and if the resulting BB does not differ very much from the first, the
piece is locked up ?

Tony



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