Author: Vincent Diepeveen
Date: 20:29:09 08/17/02
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On August 17, 2002 at 23:24:27, Russell Reagan wrote: >On August 17, 2002 at 23:05:43, Vincent Diepeveen wrote: > >>this is a misunderstanding IMHO. Fritz is a mixture as far as i can >>see. Frans Morsch is on drugs i think saying he's bitboards. > >I think I remember hearing that he only uses regular (not rotated) bitboards >starting in either Fritz 6 or 7. I think that even if he does use them, it is >probably a mixture, so you are right. > >Russell Frans sees the MMX registers different from how we see it. We see it as useless things because we are in C or C++ or whatever. He is in assembly. He simply sees he can now and then do an instruction in MMX for free while the program runs on at the normal registers. If you write that at the lowest level, in assembly, you sure can use it. Also i don't doubt for pawn evaluation a 64 bits bitboard can work. In fact if an evaluation is small you can simply do the pawn evaluation in mmx, MEANWHILE IN PARALLEL, the other evaluation gets done. It's sick to just *consider* doing it, so that's perhaps exactly what Frans did. This guy is very good in assembly... Of course it must have been a fulltime job for 2 years or so... Every new processor he has to reinvent the wheel completely. Where i keep compatible in C. I can run on any processor. Soon also at any number too, 1000 or 2000 whatever number :) Frans never ports his program within a few months to the R14000 :)
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