[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibOptPei / 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:
#
#------------------------------------------------------------------------------

.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    %al, %ah
    shrd    $16, %eax, %edx
    shld    $16, %edx, %eax
    movl    %ecx, %edx
    movl    8(%esp),%edi
    shr    $2, %ecx
    rep stosl
    movl    %edx, %ecx
    andl    $3, %ecx
    rep stosb
    movl    8(%esp),%eax
    pop     %edi
    ret
Commit	Line	Data
7b3b4b29	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
85c25283	24	.globl ASM_PFX(InternalMemSetMem)
7b3b4b29	25
	26	#------------------------------------------------------------------------------
	27	# VOID *
	28	# InternalMemSetMem (
	29	# IN VOID *Buffer,
	30	# IN UINTN Count,
	31	# IN UINT8 Value
	32	# )
	33	#------------------------------------------------------------------------------
85c25283	34	ASM_PFX(InternalMemSetMem):
7b3b4b29	35	push %edi
7b3b4b29	36	movl 12(%esp),%ecx
5053cf7f	37	movb 16(%esp),%al
85c25283	38	movb %al, %ah
5053cf7f	39	shrd $16, %eax, %edx
5053cf7f	40	shld $16, %edx, %eax
85c25283	41	movl %ecx, %edx
7b3b4b29	42	movl 8(%esp),%edi
85c25283	43	shr $2, %ecx
	44	rep stosl
	45	movl %edx, %ecx
	46	andl $3, %ecx
	47	rep stosb
7b3b4b29	48	movl 8(%esp),%eax
	49	pop %edi
	50	ret