Author: Vincent Diepeveen
Date: 11:26:55 08/17/02
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On August 17, 2002 at 12:45:04, Uri Blass wrote: >On August 17, 2002 at 12:35:52, Dan Andersson wrote: > >>Pretty sure of yourself, are you? Would be interested to see you prove your >>statement. One thing first, how do you define bitboards? >> >>MvH Dan Andersson That is not enough. If nearly all of your evaluation code is using a 64 bits bitboard based approach then i would vote for it being called a bitboarder, if vaste majority of code would work on 32 bits processor too, then it's obviously a non-bitboarder. Any other form is a 'mixture'. BTW, i wonder how i get a bit out of a bitboard at the R14000 processor. How's crafty doing that? Or probably crafty never compiles on the thing without using zillions of branches for its bitboard functions? Hmmm, LET ME TRY!! >bitboards are 64 bit numbers that every bit >has a meaning about the board >(if you use nodes as 64 bit number it is not bitboard program) > >They should be also something that is not hash signature of >the position but something that can help you to calculate >information about the position. > >By this definition movei is not a bitboards based program. > >Uri
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