Author: Chuck
Date: 15:43:39 06/28/99
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[snip] >>>I think for Pentium optimation is this a good result for AMD. >>> >>>Thanks Bob for Crafty another and thanks Dann. >>> >>>Dann, you must Crafty optimize for AMD K6-3 not for Pentium :-)) >> >>Let me toss my two cents worth in here... >> >>The Microsoft C compilers only optimize with Intel chips as targets >>and then only in a general way. The only way I know of to optimize >>for AMD chips is hand-crafted assembler. Any other opinions welcome. >> >>Larry >> >>> >>>Kind regards >>>Frank This is correct. Maybe a later version of some C compiler will have specific optimizations for AMD (because it sells so much) but not yet. However, I believe the standard Pentium optimizations should be beneficial to the AMD CPU's as well. I expect most standard Chess instructions, such as AND's, OR's, and MOVe's probably get executed in 1 instruction. At least, as a programmer, that's your goal. However, I don't have charts to verify this for AMD chips. The only other CPU-specific optimizations you might make that I can think of right off would be to try to get certain code & data retained in a register or in cache. 'Course, your registers are very limited. Anybody have any other ideas for CPU optimization? Chuck
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