Author: Sune Fischer
Date: 00:23:46 02/22/02
Go up one level in this thread
On February 22, 2002 at 00:51:26, Uri Blass wrote: >On February 21, 2002 at 20:19:42, Antonio Dieguez wrote: > >>On February 21, 2002 at 20:16:42, Antonio Dieguez wrote: >> >>>On February 21, 2002 at 08:49:58, Sune Fischer wrote: >>> >>>[snip] >>>>BTW: are you using a UnMakeMove function or do you use a backup? >>>>I do a backup, seems both faster and simpler than to unmake the move, I'm a >>>>little confused as to why some would unmake. >>> >>>because unmake is faster for them. >>> >>>when I implemented an unmake instead of using a backup I got a speed up of 20%. >>>I wish it were the other way but my ugly unmake is just faster for me. >>> >>>a. >> >>well actually at least 20%, it went to almost 90% sometimes. >> >>love and peace. > >I believe that it is not going to be faster for me. >I believe that calculating the new attack tables in unmake cannot be faster than >backup for my program but I did not try so I do not know. > >Uri Hmm, my board struct is a mere 200 bytes, it's 10x faster for me to backup 200 bytes than to unmake the move. Most of the 200 bytes would need accessing in an unmake funtion anyway. -S.
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