[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibOptDxe / Ia32 / SetMem.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:
#
#   SetMem.Asm
#
# Abstract:
#
#   SetMem function
#
# Notes:
#
#------------------------------------------------------------------------------

    .386:
    .code:

.globl ASM_PFX(InternalMemSetMem)

#------------------------------------------------------------------------------
#  VOID *
#  InternalMemSetMem (
#    IN VOID   *Buffer,
#    IN UINTN  Count,
#    IN UINT8  Value
#    )
#------------------------------------------------------------------------------
ASM_PFX(InternalMemSetMem):
    push    %edi
    movl    12(%esp),%ecx
    movb    16(%esp),%al
    movb    %ah, %al
    shrd    $16, %eax, %edx
    shld    $16, %edx, %eax
    movl    %edx, %ecx
    movl    8(%esp),%edi
    shrd    $2, %ecx, %ecx
    rep 
    stosl
    movl    %ecx, %edx
    andl    $3, %ecx
    rep
    stosb
    movl    8(%esp),%eax
    pop     %edi
    ret
Commit	Line	Data
631f060b	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	# SetMem.Asm
	15	#
	16	# Abstract:
	17	#
	18	# SetMem function
	19	#
	20	# Notes:
	21	#
	22	#------------------------------------------------------------------------------
	23
	24	.386:
	25	.code:
	26
85c25283	27	.globl ASM_PFX(InternalMemSetMem)
631f060b	28
	29	#------------------------------------------------------------------------------
	30	# VOID *
	31	# InternalMemSetMem (
	32	# IN VOID *Buffer,
	33	# IN UINTN Count,
	34	# IN UINT8 Value
	35	# )
	36	#------------------------------------------------------------------------------
85c25283	37	ASM_PFX(InternalMemSetMem):
631f060b	38	push %edi
631f060b	39	movl 12(%esp),%ecx
5053cf7f	40	movb 16(%esp),%al
85c25283	41	movb %ah, %al
5053cf7f	42	shrd $16, %eax, %edx
5053cf7f	43	shld $16, %edx, %eax
85c25283	44	movl %edx, %ecx
631f060b	45	movl 8(%esp),%edi
85c25283	46	shrd $2, %ecx, %ecx
	47	rep
	48	stosl
	49	movl %ecx, %edx
	50	andl $3, %ecx
631f060b	51	rep
	52	stosb
	53	movl 8(%esp),%eax
	54	pop %edi
	55	ret