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e9ce8d39 1/*
224c7076 2 * Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved.
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3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
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6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
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20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
e9ce8d39 23
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24 .text
25
26 .align 2
27 .globl _ffs
28_ffs:
29 movl $(-1), %edx
30 bsfl %edi, %eax
31 cmovel %edx, %eax
32 incl %eax
8e029c65 33 ret
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34
35
36 .align 2
37 .globl _ffsl
38_ffsl:
39 movl $(-1), %edx
40 bsfq %rdi, %rax
41 cmovel %edx, %eax
42 incl %eax
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43 ret
44
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45
46 .align 2
47 .globl _fls
48_fls:
49 movl $(-1), %edx
50 bsrl %edi, %eax
51 cmovel %edx, %eax
52 incl %eax
53 ret
54
55
56 .align 2
57 .globl _flsl
58_flsl:
59 movl $(-1), %edx
60 bsrq %rdi, %rax
61 cmovel %edx, %eax
62 incl %eax
e9ce8d39 63 ret