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

.globl _InternalMemZeroMem

#------------------------------------------------------------------------------
#  VOID *
#  InternalMemZeroMem (
#    IN VOID   *Buffer,
#    IN UINTN  Count
#    );
#------------------------------------------------------------------------------
_InternalMemZeroMem:
    push    %edi
    xorl    %eax,%eax
    movl    8(%esp),%edi
    movl    12(%esp),%ecx
    movl    %ecx,%edx
    shrl    $2,%ecx
    andl    $3,%edx
    pushl   %edi
    rep
    stosl
    movl    %edx,%ecx
    rep
    stosb
    popl    %eax
    pop     %edi
    ret
Commit	Line	Data
f1baef62	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	# ZeroMem.Asm
	15	#
	16	# Abstract:
	17	#
	18	# ZeroMem function
	19	#
	20	# Notes:
	21	#
	22	#------------------------------------------------------------------------------
	23
	24	.globl _InternalMemZeroMem
	25
	26	#------------------------------------------------------------------------------
	27	# VOID *
	28	# InternalMemZeroMem (
	29	# IN VOID *Buffer,
	30	# IN UINTN Count
	31	# );
	32	#------------------------------------------------------------------------------
	33	_InternalMemZeroMem:
	34	push %edi
	35	xorl %eax,%eax
	36	movl 8(%esp),%edi
	37	movl 12(%esp),%ecx
	38	movl %ecx,%edx
	39	shrl $2,%ecx
	40	andl $3,%edx
	41	pushl %edi
	42	rep
	43	stosl
	44	movl %edx,%ecx
	45	rep
	46	stosb
	47	popl %eax
	48	pop %edi
	49	ret