Author: Bo Persson
Date: 09:50:31 11/02/99
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On November 02, 1999 at 11:18:55, Christophe Theron wrote: >On November 02, 1999 at 04:57:11, Dominic Marcello wrote: > [...] >> Also, is it worth using 64 bitboards on a machine with 32 bit registers? GCC >>can emulate it (long long int), but the resulting code looks rather messy. > >If you need 64 bits bitboard, you can go for it. The performances on a 32 bits >processor will not be the best, But not too bad either! The P5/P6 generations can execute 2-3 instructions per clock cycle, in effect turning a 64 bit instruction into two parallell 32 bit operations. Hard to tell the difference :-) > but it is assumed that future processors will >either offer 64 bits support or will execute the 2x32 bits operations needed to >manipulate 64 bits faster because of better parallelization. Bo Persson bop@malmo.mail.telia.com
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