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Subject: Re: 64 bits

Author: Tom Kerrigan

Date: 11:07:50 06/20/02

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On June 20, 2002 at 13:03:10, Robert Hyatt wrote:

>It could certainly be done.  However, I don't see what it would prove.
>Other than that 64 bit operations are more efficient when done in one
>"chunk" than in two.  That seems intuitive anyway.  It would also present
>a few problems, with the FirstOne() and LastOne() PopCnt() functions that
>use assembly on the PC but not on the 64 bit machines (yet).

How would this be a problem? Why are you talking about PCs? The experiment is to
force a 64-bit chip to use 32-bit ints for bitboards. The PC is not a 64-bit
platform (yet) so we're OBVIOUSLY not talking about it.

As for not seeing what the experiment would prove, I assume you're joking.

-Tom

• Re: 64 bits Robert Hyatt 17:56:44 06/20/02
  • Re: 64 bits Keith Evans 18:48:10 06/20/02
    • Re: 64 bits Robert Hyatt 12:03:56 06/21/02
      • Re: 64 bits Keith Evans 14:07:54 06/21/02
        • Re: 64 bits Robert Hyatt 18:21:50 06/21/02
          • Re: 64 bits Keith Evans 19:04:09 06/21/02
            • Re: 64 bits Robert Hyatt 20:22:02 06/21/02
              • Re: 64 bits Keith Evans 20:49:12 06/21/02
    • Re: 64 bits Dann Corbit 20:47:28 06/20/02

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