Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.arch > #6609

ffs16

From jgk@panix.com (Joe keane)
Newsgroups comp.arch, comp.lang.c
Subject ffs16
Date 2012-04-22 21:36 +0000
Organization Public Access Networks Corp.
Message-ID <jn1tku$pga$1@reader1.panix.com> (permalink)

Cross-posted to 2 groups.

Show all headers | View raw


case A

    int ffs16a(int x)
    {
	int res;

	if ((x & 0xFF) == 0)
	    res = kk_ffstab[x & 0xFF];
	else
	    res = kk_ffstab[x >> 8 & 0xFF] + 8;
	return res;
    }

case B

    int ffs16b(int x)
    {
	int resl;
	int resh;
	int res;

	fla = (x & 0xFF) != 0;
	resl = kk_ffstab[x & 0xFF];
	resh = kk_ffstab[x >> 8 & 0xFF] + 8;
	res = (fla - 1) & resl | (0 - fla) & resh;
	return res;
    }

Back to comp.arch | Previous | Next — Next in thread | Find similar | Unroll thread


Thread

ffs16 jgk@panix.com (Joe keane) - 2012-04-22 21:36 +0000
  Re: ffs16 Keith Thompson <kst-u@mib.org> - 2012-04-22 15:23 -0700
  Re: ffs16 Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-04-22 20:37 -0400
    Re: ffs16 Philip Lantz <prl@canterey.us> - 2012-04-24 06:36 -0700
      Re: ffs16 Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-04-24 20:32 -0400
        Re: ffs16 Philip Lantz <prl@canterey.us> - 2012-04-25 00:30 -0700
  Re: ffs16 Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-04-23 16:22 +0200
    Re: ffs16 Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-04-23 21:46 -0400
      Re: ffs16 Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-04-24 14:16 +0200
        Re: ffs16 Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-04-24 20:40 -0400
    Re: ffs16 jgk@panix.com (Joe keane) - 2012-04-24 19:06 +0000
      Re: ffs16 Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-04-25 00:38 +0200
        Re: ffs16 jgk@panix.com (Joe keane) - 2012-04-25 20:08 +0000
          Re: ffs16 "James Van Buskirk" <not_valid@comcast.net> - 2012-04-25 15:06 -0600
            Re: ffs16 "James Van Buskirk" <not_valid@comcast.net> - 2012-04-25 16:30 -0600
        Re: ffs16 jgk@panix.com (Joe keane) - 2012-04-25 21:25 +0000
          Re: ffs16 Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-04-26 01:38 +0200
            Re: ffs16 jgk@panix.com (Joe keane) - 2012-04-26 19:34 +0000
            Re: ffs16 jgk@panix.com (Joe keane) - 2012-04-26 20:41 +0000
              Re: ffs16 Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-04-27 02:47 +0200
  Re: ffs16 MitchAlsup <MitchAlsup@aol.com> - 2012-04-23 13:01 -0700
    Re: ffs16 Terje Mathisen <"terje.mathisen at tmsw.no"> - 2012-04-24 03:28 +0200
      Re: ffs16 nmm1@cam.ac.uk - 2012-04-24 09:15 +0100
      Re: ffs16 Chris Gray <cg@GraySage.com> - 2012-04-24 13:37 -0600

csiph-web