1/*-
2 * Copyright (c) 2003 Tim J. Robbins.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
| 1/*-
2 * Copyright (c) 2003 Tim J. Robbins.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
|
29
30/*
31 * int
32 * wcscmp(const wchar_t *s1, const wchar_t *s2) --
33 * Return an integer greater than, equal to, or less than 0, when
34 * the string s1 is greater than, equal to, or less than the string s2.
35 */
36ENTRY(wcscmp)
37 pushl %edi
38 pushl %esi
39 movl 12(%esp),%edi /* s1 */
40 movl 16(%esp),%esi /* s2 */
41.p2align 4,0x90
42top: movl (%edi),%eax
43 cmpl %eax,(%esi)
44 jne no0
45 testl %eax,%eax
46 jz same
47 movl 4(%edi),%eax
48 cmpl %eax,4(%esi)
49 jne no4
50 testl %eax,%eax
51 jz same
52 movl 8(%edi),%eax
53 cmpl %eax,8(%esi)
54 jne no8
55 testl %eax,%eax
56 jz same
57 movl 12(%edi),%eax
58 cmpl %eax,12(%esi)
59 jne no12
60 leal 16(%edi),%edi
61 leal 16(%esi),%esi
62 testl %eax,%eax
63 jnz top
64.p2align 2,0x90
65same: xorl %eax,%eax
66 popl %esi
67 popl %edi
68 ret
69.p2align 2,0x90
70no12: leal 4(%esi),%esi
71.p2align 2,0x90
72no8: leal 4(%esi),%esi
73.p2align 2,0x90
74no4: leal 4(%esi),%esi
75.p2align 2,0x90
76no0: subl (%esi),%eax
77 popl %esi
78 popl %edi
79 ret
80END(wcscmp)
| 29
30/*
31 * int
32 * wcscmp(const wchar_t *s1, const wchar_t *s2) --
33 * Return an integer greater than, equal to, or less than 0, when
34 * the string s1 is greater than, equal to, or less than the string s2.
35 */
36ENTRY(wcscmp)
37 pushl %edi
38 pushl %esi
39 movl 12(%esp),%edi /* s1 */
40 movl 16(%esp),%esi /* s2 */
41.p2align 4,0x90
42top: movl (%edi),%eax
43 cmpl %eax,(%esi)
44 jne no0
45 testl %eax,%eax
46 jz same
47 movl 4(%edi),%eax
48 cmpl %eax,4(%esi)
49 jne no4
50 testl %eax,%eax
51 jz same
52 movl 8(%edi),%eax
53 cmpl %eax,8(%esi)
54 jne no8
55 testl %eax,%eax
56 jz same
57 movl 12(%edi),%eax
58 cmpl %eax,12(%esi)
59 jne no12
60 leal 16(%edi),%edi
61 leal 16(%esi),%esi
62 testl %eax,%eax
63 jnz top
64.p2align 2,0x90
65same: xorl %eax,%eax
66 popl %esi
67 popl %edi
68 ret
69.p2align 2,0x90
70no12: leal 4(%esi),%esi
71.p2align 2,0x90
72no8: leal 4(%esi),%esi
73.p2align 2,0x90
74no4: leal 4(%esi),%esi
75.p2align 2,0x90
76no0: subl (%esi),%eax
77 popl %esi
78 popl %edi
79 ret
80END(wcscmp)
|