1*0a6a1f1dSLionel Sambuc/* $NetBSD: strrchr.S,v 1.3 2015/05/26 06:55:08 matt Exp $ */ 2b6cbf720SGianluca Guida 3b6cbf720SGianluca Guida/*- 4b6cbf720SGianluca Guida * Copyright (c) 1991, 1993 5b6cbf720SGianluca Guida * The Regents of the University of California. All rights reserved. 6b6cbf720SGianluca Guida * 7b6cbf720SGianluca Guida * This code is derived from software contributed to Berkeley by 8b6cbf720SGianluca Guida * Ralph Campbell. 9b6cbf720SGianluca Guida * 10b6cbf720SGianluca Guida * Redistribution and use in source and binary forms, with or without 11b6cbf720SGianluca Guida * modification, are permitted provided that the following conditions 12b6cbf720SGianluca Guida * are met: 13b6cbf720SGianluca Guida * 1. Redistributions of source code must retain the above copyright 14b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer. 15b6cbf720SGianluca Guida * 2. Redistributions in binary form must reproduce the above copyright 16b6cbf720SGianluca Guida * notice, this list of conditions and the following disclaimer in the 17b6cbf720SGianluca Guida * documentation and/or other materials provided with the distribution. 18b6cbf720SGianluca Guida * 3. Neither the name of the University nor the names of its contributors 19b6cbf720SGianluca Guida * may be used to endorse or promote products derived from this software 20b6cbf720SGianluca Guida * without specific prior written permission. 21b6cbf720SGianluca Guida * 22b6cbf720SGianluca Guida * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23b6cbf720SGianluca Guida * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24b6cbf720SGianluca Guida * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25b6cbf720SGianluca Guida * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26b6cbf720SGianluca Guida * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27b6cbf720SGianluca Guida * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28b6cbf720SGianluca Guida * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29b6cbf720SGianluca Guida * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30b6cbf720SGianluca Guida * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31b6cbf720SGianluca Guida * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32b6cbf720SGianluca Guida * SUCH DAMAGE. 33b6cbf720SGianluca Guida */ 34b6cbf720SGianluca Guida 35b6cbf720SGianluca Guida#include <mips/asm.h> 36b6cbf720SGianluca Guida 37b6cbf720SGianluca Guida#if defined(LIBC_SCCS) && !defined(lint) 38b6cbf720SGianluca Guida ASMSTR("from: @(#)rindex.s 8.1 (Berkeley) 6/4/93") 39*0a6a1f1dSLionel Sambuc ASMSTR("$NetBSD: strrchr.S,v 1.3 2015/05/26 06:55:08 matt Exp $") 40b6cbf720SGianluca Guida#endif /* LIBC_SCCS and not lint */ 41b6cbf720SGianluca Guida 42b6cbf720SGianluca Guida#ifdef __ABICALLS__ 43b6cbf720SGianluca Guida .abicalls 44b6cbf720SGianluca Guida#endif 45b6cbf720SGianluca Guida 46b6cbf720SGianluca GuidaLEAF(strrchr) 47b6cbf720SGianluca GuidaXLEAF(rindex) 48*0a6a1f1dSLionel Sambuc and a1, 0xff # limit to byte value 49b6cbf720SGianluca Guida move v0, zero # default if not found 50b6cbf720SGianluca Guida1: 51b6cbf720SGianluca Guida lbu a3, 0(a0) # get a byte 52b6cbf720SGianluca Guida PTR_ADDU a0, a0, 1 53b6cbf720SGianluca Guida bne a3, a1, 2f 54b6cbf720SGianluca Guida PTR_SUBU v0, a0, 1 # save address of last match 55b6cbf720SGianluca Guida2: 56b6cbf720SGianluca Guida bne a3, zero, 1b # continue if not end 57b6cbf720SGianluca Guida j ra 58b6cbf720SGianluca GuidaEND(strrchr) 59