Author: Robert Hyatt
Date: 08:45:14 03/02/06
Go up one level in this thread
On March 02, 2006 at 05:46:06, Rémi Coulom wrote: >On March 01, 2006 at 19:54:20, Robert Hyatt wrote: > >>On March 01, 2006 at 19:11:15, Jarkko Pesonen wrote: >> >>>Her is what open source Fruit/Toga is using >>> >>>index = PIECE_TO_12(board->square[MOVE_FROM(move)]) * 64 + >>>SQUARE_TO_64(MOVE_TO(move)); >> >> >>That is the same as everyone doing history I assume? 4096 entries per side... > >If you read the code carefully, you'll notice that it is not. It is 12 * 64. > >Rémi yes, but the history_index() function computes a 12 bit index. That is what is confusing. notice the index calculation above... from * 64 + to, which certainly gives a 12 bit index into a 12 * 64 table. That has to be a bug, or else I am missing something. Note that someone just sent me the pieces above, not the entire fruit source so I have not looked at the surrounding code to see if there is more to the story...
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