Author: Eugene Nalimov
Date: 16:10:32 06/15/00
Go up one level in this thread
That's not true for some systems. Int is still 32 bits, but "natural" word size is 64 bits. Eugene On June 15, 2000 at 17:28:26, Tom Kerrigan wrote: >On June 15, 2000 at 06:15:55, Christophe Theron wrote: > >>On June 14, 2000 at 17:29:07, Dave Gomboc wrote: >> >>>On June 14, 2000 at 16:17:25, Christophe Theron wrote: >>> >>>>The availability of 64 bits processors changes nothing. Unless some 64 bits >>>>processors are so lousy that 8, 16 and 32 bits operations become slower than 64 >>>>bits ops...! :) >>> >>>I don't think it is unusual for certain operations on sizes smaller than the >>>processor word size to take longer than they would if they used the processor's >>>word size. Indeed, it wouldn't even be unusual for it to be possible without >>>first sign-extending or zero-extending from the smaller size to the processor >>>word size. AFAIK, 80x86 is a bit freaky in that it tries very hard to support >>>8-bit and 16-bit operations in registers as quickly as 32-bit operations. >>> >>>Dave >> >> >>That would be a very unfair way for bitboards to win the contest! :) >> >> >> Christophe > >Just define everything in your program as an int. It will automatically use the >processor's word size, so problem solved. :) >-Tom
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