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Commit	Line	Data
	1	/*
	2	* Copyright (c) 2005-2006 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	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
	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	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.
	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23
	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
	33	ret
	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
	43	ret
	44
	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
	63	ret