/* ffs -- find first set bit in a word, counted from least significant end.   For Intel 80x86, x>=6.   This file is part of the GNU C Library.   Copyright (C) 1991, 92, 93, 94, 97, 98 Free Software Foundation, Inc.   Contributed by Ulrich Drepper <drepper@cygnus.com>.   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 <string.h>#undef	ffs#ifdef	__GNUC__int__ffs (x)     int x;{  int cnt;  int tmp;  asm ("bsfl %2,%0\n"		/* Count low bits in X and store in %1.  */       "cmovel %1,%0\n"		/* If number was zero, use -1 as result.  */       : "=&r" (cnt), "=r" (tmp) : "rm" (x), "1" (-1));  return cnt + 1;}weak_alias (__ffs, ffs)#undef ffslweak_alias (__ffs, ffsl)#else#include <sysdeps/generic/ffs.c>#endif