Author: Andrew Williams
Date: 13:26:54 10/18/00
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On October 18, 2000 at 16:13:13, Frank Phillips wrote: >Can anyone point me to a freeware version of Eugene?s FirstBit(), LastBit() and >PopCnt() assembly functions for Linux (gcc), preferably in the form of a >#define for inclusion in a header file. > >Much as I like Linux, my program is about 20 to 30 percent slower under Linux >than it is when compiled with MS VC++ under Windows. > >Profiling shows that the array based lookup to find the first or last bit is >taking most time. > >Frank Hi, I don't use assembly in my program, but there are some interesting routines here: http://www.df.lth.se/~john_e/fr_gems.html I don't know if they are written for a Linux assembler or not. Cheers Andrew
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