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Subject: Re: A "Chess Chip"?

Author: Keith Evans

Date: 16:24:35 06/20/02

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On June 20, 2002 at 18:24:59, Tom Glenn wrote:

> Isn't the  "Brutus"  program based on development
> of a new 'chess-chip'  ......????
>
> Kind of like a modern day 'ChessMachine'

It uses an FPGA which is a type of programmable logic. (see
http://www.xilinx.com/ and look for information on their Virtex parts if you're
interested in learning more.) A custom chess chip would be significantly faster
and cheaper to produce in volume than a FPGA, but the up front costs would be
much larger. Plus since you would never ship any significant volumes of a chess
chip you would end up pissing off your foundry since you would probably have to
lie about your volume to get them interested in working with you.

There is a service called MOSIS available which could enable a chip hacker to
pull something like this off for low volumes, but still the tools that you need
to do chip design are very expensive. I don't see it happening.

However there might be some combination of cheap CPU + cheap FPGA which would
prove interesting for small chess computers. The goal wouldn't be to beat the
performance of the highest end desktop, but to give decent performance in a
small package.

Here's an interesting approach - Excaliber makes small chess computers and I
believe that the chip is somewhat custom. If they went with the Arc processor in
the future they could add a few custom chess instructions to get a little
performace boost.

-Keith



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