[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibSse2 / Ia32 / SetMem64.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2006, Intel Corporation\r
# All rights reserved. This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
# Module Name:\r
#\r
#   SetMem64.S\r
#\r
# Abstract:\r
#\r
#   SetMem64 function\r
#\r
# Notes:\r
#\r
#------------------------------------------------------------------------------\r
\r
#------------------------------------------------------------------------------\r
#  VOID *\r
#  InternalMemSetMem64 (\r
#    IN VOID   *Buffer,\r
#    IN UINTN  Count,\r
#    IN UINT64 Value\r
#    )\r
#------------------------------------------------------------------------------\r
.globl _InternalMemSetMem64\r
_InternalMemSetMem64:\r
    movl    4(%esp), %eax\r
    movl    8(%esp), %ecx\r
    testb   $8, %al\r
    movl    %eax, %edx\r
    movq    0xc(%esp), %xmm0\r
    jz      L1\r
    movq    %xmm0, (%edx)\r
    addl    $8, %edx\r
    decl    %ecx\r
L1: \r
    shrl    %ecx\r
    jz      @SetQwords\r
    movlhps %xmm0, %xmm0\r
L2: \r
    movntdq %xmm0, (%edx)\r
    leal    16(%edx), %edx\r
    loop    L2\r
    mfence\r
@SetQwords: \r
    jnc     L3\r
    movq    %xmm0, (%edx)\r
L3: \r
    ret\r
\r
\r
\r
Commit	Line	Data
	1	#------------------------------------------------------------------------------\r
	2	#\r
	3	# Copyright (c) 2006, Intel Corporation\r
	4	# All rights reserved. This program and the accompanying materials\r
	5	# are licensed and made available under the terms and conditions of the BSD License\r
	6	# which accompanies this distribution. The full text of the license may be found at\r
	7	# http://opensource.org/licenses/bsd-license.php\r
	8	#\r
	9	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	10	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	11	#\r
	12	# Module Name:\r
	13	#\r
	14	# SetMem64.S\r
	15	#\r
	16	# Abstract:\r
	17	#\r
	18	# SetMem64 function\r
	19	#\r
	20	# Notes:\r
	21	#\r
	22	#------------------------------------------------------------------------------\r
	23	\r
	24	#------------------------------------------------------------------------------\r
	25	# VOID *\r
	26	# InternalMemSetMem64 (\r
	27	# IN VOID *Buffer,\r
	28	# IN UINTN Count,\r
	29	# IN UINT64 Value\r
	30	# )\r
	31	#------------------------------------------------------------------------------\r
	32	.globl _InternalMemSetMem64\r
	33	_InternalMemSetMem64:\r
	34	movl 4(%esp), %eax\r
	35	movl 8(%esp), %ecx\r
	36	testb $8, %al\r
	37	movl %eax, %edx\r
	38	movq 0xc(%esp), %xmm0\r
	39	jz L1\r
	40	movq %xmm0, (%edx)\r
	41	addl $8, %edx\r
	42	decl %ecx\r
	43	L1: \r
	44	shrl %ecx\r
	45	jz @SetQwords\r
	46	movlhps %xmm0, %xmm0\r
	47	L2: \r
	48	movntdq %xmm0, (%edx)\r
	49	leal 16(%edx), %edx\r
	50	loop L2\r
	51	mfence\r
	52	@SetQwords: \r
	53	jnc L3\r
	54	movq %xmm0, (%edx)\r
	55	L3: \r
	56	ret\r
	57	\r
	58	\r
	59	\r