/* ffs -- find first set bit in a word, counted from least significant end. For Motorola 88000. This file is part of the GNU C Library. Copyright (C) 1991, 1992, 1997, 2004, 2005 Free Software Foundation, Inc. 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. */ #include #undef ffs #ifdef __GNUC__ int __ffs (x) int x; { int cnt; if (x == 0) return 0; asm ("ff1 %0,%1" : "=r" (cnt) : "r" (x & -x)); return cnt + 1; } weak_alias (__ffs, ffs) libc_hidden_builtin_def (ffs) #else #include #endif