Author: Robert Hyatt
Date: 19:32:28 06/16/00
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On June 16, 2000 at 20:54:22, Christophe Theron wrote: >On June 16, 2000 at 20:15:58, Robert Hyatt wrote: > >>On June 16, 2000 at 15:02:31, Oliver Roese wrote: >> >>>I recall, i saw a printout of horrible quality in a book, some long time ago. >>>So i know the code is available for the public. But it seems not to be found on >>>the net somehere. >>>Or am i wrong here? >>> >>>Oliver Roese >> >> >>Note that it was written in Compass (CDC assembly language). I am sure it is >>laying around somewhere... I used to have a copy of it myself. However, it was >>very hard to read... > > >I remember that I have read somewhere that Chess 4.x was entirely written in >Fortran 77. > >Well you must know better than me, as you have met the authors of the program... > > > Christophe It was definitely written in Compass. You will even find a reference to this in Chess Skill in Man and Machine. They wrote a few cute macros to help cut the size of the code down, but it was hard to read. Dave Cahlander still works at Cray I think (he worked for CDC and wrote the Compass assembler way back when). He might be a contact to get a copy of the source code. But in any case, I have personally been thru the code, and did some porting work when Harry and I were running it on a Cyber 176 at Livermore as a tune-up opponent for various chess events. Cray Blitz and most other programs were FORTRAN. But Chess 4.x and Duchess were pure assembler.
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