Author: Gerd Isenberg
Date: 00:03:01 03/29/05
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On March 28, 2005 at 20:56:05, Daniel Pineo wrote: > >Very neat. I hope to upgrade my poor PII333 next weekend and get an Athlon 64. > >I've been looking at what I can do with SIMD in my chess program. Maybe you can >help me figure something out: how can I parallelize table lookups? If I have a >64bit vector containing 8 8bit offsets into a table, is it possible to quickly >obtain a vector containing the values at those offsets? > >regards, >Dan Pineo Dan, i fear i can't help you with memory lookups. There is no way, to address memory with xmm or mmx registers. One way to "parallize" lookups is to combine e.g. two byte indices to a 16-bit word index - which requires exponential greater table space. Gerd
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