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

//\r
// Include common header file for this module.\r
//\r
#include "CommonHeader.h"\r
\r
#------------------------------------------------------------------------------\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
.globl _InternalMemSetMem64\r
\r
#------------------------------------------------------------------------------\r
#  VOID *\r
#  EFIAPI\r
#  InternalMemSetMem64 (\r
#    IN VOID   *Buffer,\r
#    IN UINTN  Count,\r
#    IN UINT64 Value\r
#    );\r
#------------------------------------------------------------------------------\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      L_SetQwords\r
    movlhps %xmm0, %xmm0\r
L2:\r
    movntdq %xmm0, (%edx)\r
    leal    16(%edx), %edx\r
    loop    L2\r
    mfence\r
L_SetQwords:\r
    jnc     L3\r
    movq    %xmm0, (%edx)\r
L3:\r
    ret\r
Commit	Line	Data
e1f414b6	1	//\r
	2	// Include common header file for this module.\r
	3	//\r
	4	#include "CommonHeader.h"\r
	5	\r
	6	#------------------------------------------------------------------------------\r
	7	#\r
	8	# Copyright (c) 2006, Intel Corporation\r
	9	# All rights reserved. This program and the accompanying materials\r
	10	# are licensed and made available under the terms and conditions of the BSD License\r
	11	# which accompanies this distribution. The full text of the license may be found at\r
	12	# http://opensource.org/licenses/bsd-license.php\r
	13	#\r
	14	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	15	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	16	#\r
	17	# Module Name:\r
	18	#\r
	19	# SetMem64.S\r
	20	#\r
	21	# Abstract:\r
	22	#\r
	23	# SetMem64 function\r
	24	#\r
	25	# Notes:\r
	26	#\r
	27	#------------------------------------------------------------------------------\r
	28	\r
	29	.globl _InternalMemSetMem64\r
	30	\r
	31	#------------------------------------------------------------------------------\r
	32	# VOID *\r
	33	# EFIAPI\r
	34	# InternalMemSetMem64 (\r
	35	# IN VOID *Buffer,\r
	36	# IN UINTN Count,\r
	37	# IN UINT64 Value\r
	38	# );\r
	39	#------------------------------------------------------------------------------\r
	40	_InternalMemSetMem64:\r
	41	movl 4(%esp), %eax\r
	42	movl 8(%esp), %ecx\r
	43	testb $8, %al\r
	44	movl %eax, %edx\r
	45	movq 0xc(%esp), %xmm0\r
	46	jz L1\r
	47	movq %xmm0, (%edx)\r
	48	addl $8, %edx\r
	49	decl %ecx\r
	50	L1:\r
	51	shrl %ecx\r
	52	jz L_SetQwords\r
	53	movlhps %xmm0, %xmm0\r
	54	L2:\r
	55	movntdq %xmm0, (%edx)\r
	56	leal 16(%edx), %edx\r
	57	loop L2\r
	58	mfence\r
	59	L_SetQwords:\r
	60	jnc L3\r
	61	movq %xmm0, (%edx)\r
	62	L3:\r
	63	ret\r