[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibMmx / Ia32 / SetMem16.S

#------------------------------------------------------------------------------
#
# Copyright (c) 2006, Intel Corporation
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
# Module Name:
#
#   SetMem16.asm
#
# Abstract:
#
#   SetMem16 function
#
# Notes:
#
#------------------------------------------------------------------------------

.globl _InternalMemSetMem16

#------------------------------------------------------------------------------
#  VOID *
#  InternalMemSetMem16 (
#    IN VOID   *Buffer,
#    IN UINTN  Count,
#    IN UINT16 Value
#    )
#------------------------------------------------------------------------------
_InternalMemSetMem16:
    push    %edi
    movl    16(%esp), %eax
    shrdl   $16, %eax, %edx
    shldl   $16, %edx, %eax
    movl    12(%esp), %edx
    movl    8(%esp), %edi
    movl    %edx, %ecx
    andl    $3, %edx
    shrl    $2, %ecx
    jz      L1
    movd    %eax, %mm0
    movd    %eax, %mm1
    psllq   $32, %mm0
    por     %mm1, %mm0
L0:
    movq    %mm0, (%edi)
    addl    $8, %edi
    loopl   L0
L1:
    movl    %edx, %ecx
    rep
    stosw
    movl    8(%esp), %eax
    pop     %edi
    ret
Commit	Line	Data
	1	#------------------------------------------------------------------------------
	2	#
	3	# Copyright (c) 2006, Intel Corporation
	4	# All rights reserved. This program and the accompanying materials
	5	# are licensed and made available under the terms and conditions of the BSD License
	6	# which accompanies this distribution. The full text of the license may be found at
	7	# http://opensource.org/licenses/bsd-license.php
	8	#
	9	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
	10	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
	11	#
	12	# Module Name:
	13	#
	14	# SetMem16.asm
	15	#
	16	# Abstract:
	17	#
	18	# SetMem16 function
	19	#
	20	# Notes:
	21	#
	22	#------------------------------------------------------------------------------
	23
	24	.globl _InternalMemSetMem16
	25
	26	#------------------------------------------------------------------------------
	27	# VOID *
	28	# InternalMemSetMem16 (
	29	# IN VOID *Buffer,
	30	# IN UINTN Count,
	31	# IN UINT16 Value
	32	# )
	33	#------------------------------------------------------------------------------
	34	_InternalMemSetMem16:
	35	push %edi
	36	movl 16(%esp), %eax
	37	shrdl $16, %eax, %edx
	38	shldl $16, %edx, %eax
	39	movl 12(%esp), %edx
	40	movl 8(%esp), %edi
	41	movl %edx, %ecx
	42	andl $3, %edx
	43	shrl $2, %ecx
	44	jz L1
	45	movd %eax, %mm0
	46	movd %eax, %mm1
	47	psllq $32, %mm0
	48	por %mm1, %mm0
	49	L0:
	50	movq %mm0, (%edi)
	51	addl $8, %edi
	52	loopl L0
	53	L1:
	54	movl %edx, %ecx
	55	rep
	56	stosw
	57	movl 8(%esp), %eax
	58	pop %edi
	59	ret