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Subject: Re: crafty 20.0

Author: Andreas Guettinger

Date: 12:26:27 08/26/05

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On August 26, 2005 at 15:09:29, Robert Hyatt wrote:

>I just released version 20.0.  The only new feature beyond 19.20, is that the
>book files (*.bin) are now portable.  That is, you can build a book on a
>big-endian architecture, and use it on a little-endian architecture.  You can
>build a book on a 32 bit architecture, and use it on a 64 bit architecture.
>Etc.  This was a sore point with me for quite a while...  some systems/compilers
>make structures multiples of 8 bytes, some multiples of 4, some are big-endian,
>some are little-endian.  In the 2004 WCCC blitz tournament, I gave peter a book
>that was made on my 32 bit systems, which produced some bizarre stuff on the 64
>bit opteron.  I decided to fix that.
>
>20.1 will be out as soon as I get all the bit renumbering done.  Nothing new
>other than a very slight expected speedup due to the removal of the 63 - bit#
>translation required between the Intel BSF/BSR and the Cray LEADZ bit numbering
>schemes...
>
>20.2 and beyond are a planned complete revision of the Evaluation, but these
>changes will not be released publicly until after the next WCCC event...

Does this mean we should download a new book.bin file too?

regards
Andy



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