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Subject: Re: Resources about rotated bitboards

Author: Alessandro Damiani

Date: 03:42:22 01/18/04

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>>As Gerd said, the two additional instructions can be put into the SlideIndexXX.
>>I am going to test the smaller tables.
>
>While I am not doing it exactly as he does, I found the 75% memory reduction
>helped performance.
>

Mmmh. Currently by switching to the smaller tables worsened performance by about
25%. I could improve it a bit (register calculation instead of table look-up),
but it is still about that margin slower. Maybe it has to do with my old
machine, a Pentium II 450MHz (512kByte L2 cache)??

puzzled

Alessandro



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