Author: Frank Phillips
Date: 11:09:12 10/19/00
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On October 18, 2000 at 17:13:11, Robert Hyatt wrote: >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 > > >Why not the one in crafty? Eugene wrote the .S version... Enbarassingly, I have never figured out how to get my program to compile with x86.s, even though the makefile used to work on an earlier version of gcc.
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