From 5da3d377184465497da472ad71a26a578fe6a5dd Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 4 Apr 2004 06:17:27 +0000 Subject: Update. * sysdeps/powerpc/powerpc64/ffsll.c: New file. * sysdeps/powerpc/elf/libc-start.c: No need for a separate --- sysdeps/powerpc/powerpc64/ffsll.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 sysdeps/powerpc/powerpc64/ffsll.c (limited to 'sysdeps/powerpc/powerpc64/ffsll.c') diff --git a/sysdeps/powerpc/powerpc64/ffsll.c b/sysdeps/powerpc/powerpc64/ffsll.c new file mode 100644 index 0000000000..3a0018955e --- /dev/null +++ b/sysdeps/powerpc/powerpc64/ffsll.c @@ -0,0 +1,38 @@ +/* Find first set bit in a word, counted from least significant end. + For PowerPC. + Copyright (C) 1991, 1992, 1997, 1998, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Torbjorn Granlund (tege@sics.se). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#define ffsl __something_else +#include +#include + +#undef ffs + +int +__ffsll (long long int x) +{ + int cnt; + + asm ("cntlzd %0,%1" : "=r" (cnt) : "r" (x & -x)); + return 64 - cnt; +} +weak_alias (__ffsll, ffsll) +#undef ffsl +weak_alias (__ffsll, ffsl) -- cgit 1.4.1