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Subject: Re: Request help with "PopCount 16bit" and "Index of any one bit"

Author: Russell Reagan

Date: 12:52:18 04/07/03

Go up one level in this thread

You could use a lookup table for both of the things you want to do, and both
should be exceptionally fast. You could use 16-bit tables, or 8-bit tables with
a tiny amount of logic, and the 8-bit might run faster due to cache
friendliness. You'd just have to try and see which gives the best results.

• Maybe you're right but maybe you're not! Albert Bertilsson 13:19:26 04/07/03
  • Re: Maybe you're right but maybe you're not! Russell Reagan 13:32:04 04/07/03

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