Annotation of src/common/lib/libc/arch/mips/string/strrchr.S, Revision 1.2
1.2 ! matt 1: /* $NetBSD: strrchr.S,v 1.1 2009/07/16 21:25:36 dsl Exp $ */
1.1 dsl 2:
3: /*-
4: * Copyright (c) 1991, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * This code is derived from software contributed to Berkeley by
8: * Ralph Campbell.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. Neither the name of the University nor the names of its contributors
19: * may be used to endorse or promote products derived from this software
20: * without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: */
34:
35: #include <mips/asm.h>
36:
37: #if defined(LIBC_SCCS) && !defined(lint)
38: ASMSTR("from: @(#)rindex.s 8.1 (Berkeley) 6/4/93")
1.2 ! matt 39: ASMSTR("$NetBSD: strrchr.S,v 1.1 2009/07/16 21:25:36 dsl Exp $")
1.1 dsl 40: #endif /* LIBC_SCCS and not lint */
41:
42: #ifdef __ABICALLS__
43: .abicalls
44: #endif
45:
46: LEAF(strrchr)
47: XLEAF(rindex)
48: move v0, zero # default if not found
49: 1:
50: lbu a3, 0(a0) # get a byte
1.2 ! matt 51: PTR_ADDU a0, a0, 1
1.1 dsl 52: bne a3, a1, 2f
1.2 ! matt 53: PTR_SUBU v0, a0, 1 # save address of last match
1.1 dsl 54: 2:
55: bne a3, zero, 1b # continue if not end
56: j ra
57: END(strrchr)
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