Author: Robert Hyatt
Date: 15:45:35 01/25/03
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On January 25, 2003 at 13:20:10, David Rasmussen wrote: >Talking bitboards, what is the most natural board orientation for IA32 >assembler? I would think that a1=0, a2=1 etc. would be unnatural, for example. > >/David That is irrelevant. What is important is which bit you number "0". On a Cray, the MSB should be "0", while on IA32 the LSB should be zero. For other machines, you want bit "0" to be the natural number for the first one bit you can detect. Most machines will probably want bit 0 = LSB, although the IBM Power PC is the opposite as it has a hardware instruction to count leading zeros, just like the Cray...
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