/* ffs -- find first set bit in a word, counted from least significant end. For mc68020, mc68030, mc68040. This file is part of the GNU C Library. Copyright (C) 1991, 1992, 1997, 1998 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 Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define ffsl __something_else #include #undef ffs #if defined (__GNUC__) && defined (__mc68020__) int __ffs (x) int x; { int cnt; asm ("bfffo %1{#0:#0},%0" : "=d" (cnt) : "dm" (x & -x)); return 32 - cnt; } weak_alias (__ffs, ffs) #undef ffsl weak_alias (__ffs, ffsl) #else #include #endif