/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* Copyright (c) 1992, 1997 NeXT Software, Inc. All rights reserved. * * File: libc/gen/ppc/ffs.s * * Find the first bit set (starting with the least significant bit). * * HISTORY * * 24-Jan-1997 Umesh Vaishampayan (umeshv@NeXT.com) * Ported to PPC. * * 19-Jan-1998 Matt Watson (mwatson@apple.com) * Simplified * * 10-Mar-1998 Matt Watson (mwatson@apple.com) * Correctified * */ .text .align 2 .globl _ffs _ffs: neg r0,r3 and r3,r0,r3 cntlzw r3,r3 subfic r3,r3,32 blr