Author: Dann Corbit
Date: 17:10:30 06/19/00
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On June 19, 2000 at 19:57:19, James Robertson wrote: >On June 19, 2000 at 19:37:14, Andrew Dados wrote: [snip] >>Even worse news: When I went down to asm as you did for bitboards, I was able to >>speed up capture detection for 0x88 by some 66% :) > >This is amazing.... did you improve the algorithm, or just are you 66% smarter >than the compiler? If you say the latter, expect to have many people asking you >to make sure optimizations are on when you recompile the C++ version. :) Almost astonishing. I would like to know the compiler and settings that were used. Ten years ago, you could almost always double the speed of a C program by an assembly rewrite, but I find that it is very difficult to improve on the modern optimizing compilers of today by a significant amount.
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