Author: Daniel Clausen
Date: 07:03:02 05/25/02
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On May 25, 2002 at 09:50:27, Vincent Diepeveen wrote: >On May 25, 2002 at 09:32:58, Russell Reagan wrote: > >A few rude things can be done pretty quick with bitboards >at 64 bits processors, which is what Bob aimed at a year >or 10 ago, >but as soon as you want to evaluate things in detail, then >please remember what bitboards are: they provide 1 bit of >info a bitboard about a square. That's very little info. > Nothing prevents a bitboard-based program to use non-bitboard things as well. Eg I use a simple array 'piece_t square[64]' _additionally_ to all the bitboards, since it's much faster to use this when you have to find out what piece is on a certain square. Other bitboard-based programs probably also have this or similar information stored additionally to the many bitboards. Similarly, nothing prevents non-bitboard programs to use bitboards for certain things. E.g. (Hi Roy! :) using a bitboard for all pawns is quite common, AFAIK. Sargon
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