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Subject: Re: Assembly Programmers Challenge! (repost and clarification)

Author: David Rasmussen

Date: 16:56:18 01/21/03

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On January 21, 2003 at 19:47:37, David Rasmussen wrote:

>
>These worked for me (although not faster. I guess the compilers were optimizing
>the superfluous loads away). The PopCount() on the other hand, does not work for
>me.
>
>/David

Executing for example this line:

	cout << "COUNT: " << PopCount(BitBoard(0xFFFFF8)) << endl;

outputs

COUNT: 5

and

	cout << "COUNT: " << PopCount(BitBoard(0xFFFF88)) << endl;

outputs

COUNT: 2

and

	cout << "COUNT: " << PopCount(BitBoard(0xF8)) << endl;

outputs: 5

It only seems to look at the first byte of the input, and the numbers returned
are nonsense.

/David

• Re: Assembly Programmers Challenge! (repost and clarification) David Rasmussen 17:04:10 01/21/03
  • Re: Assembly Programmers Challenge! (repost and clarification) Gerd Isenberg 23:46:02 01/21/03
    • Re: Assembly Programmers Challenge! (repost and clarification) Matt Taylor 23:54:44 01/21/03
      • Re: Assembly Programmers Challenge! (repost and clarification) Gerd Isenberg 00:00:22 01/22/03
        • Re: Assembly Programmers Challenge! (repost and clarification) Matt Taylor 01:20:04 01/22/03
          • Re: Assembly Programmers Challenge! (repost and clarification) Gerd Isenberg 02:32:43 01/22/03

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