Author: Alessandro Scotti
Date: 14:36:01 01/13/05
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On January 13, 2005 at 17:18:46, Eric Oldre wrote: >so Prof. Hyatt can then use the following > >board->wPawns; >instead of the equiv. in my engine >board->bb_pieces[PIECEWPAWN]; Hi Eric, I think this particular is not important for speed. In both cases the compiler knows the exact address of the variable at compile time, and should generate identical code. But generally speaking, it's getting increasingly difficult to predict what helps and what doesn't. I've had sometimes improved the speed of my program by shuffling code around trying to make the cache happy. On a fortunate day I got a 27% speedup on a piece of the move generator by simply shifting a block of code a few lines (on a P4, it only gained 4% on a Athlon)... 8-O
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