#

# ConvertAsm.py: Automatically generated from ZeroMem.asm

#

#------------------------------------------------------------------------------

#

# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>

# 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.S

#

# Abstract:

#

# ZeroMem function

#

# Notes:

#

#------------------------------------------------------------------------------

#------------------------------------------------------------------------------

# VOID *

# InternalMemZeroMem (

# IN VOID *Buffer,

# IN UINTN Count

# );

#------------------------------------------------------------------------------

ASM_GLOBAL ASM_PFX(InternalMemZeroMem)

ASM_PFX(InternalMemZeroMem):

pushq %rdi

movq %rcx, %rdi

xorq %rcx, %rcx

xorl %eax, %eax

subq %rdi, %rcx

andq $15, %rcx

movq %rdi, %r8

jz L0

cmpq %rdx, %rcx

cmova %rdx, %rcx

subq %rcx, %rdx

rep stosb

L0:

movq %rdx, %rcx

andl $15, %edx

shrq $4, %rcx

jz L_ZeroBytes

pxor %xmm0, %xmm0

L1:

movntdq %xmm0, (%rdi) # rdi should be 16-byte aligned

addq $16, %rdi

loop L1

mfence

L_ZeroBytes:

movl %edx, %ecx

rep stosb

movq %r8, %rax

popq %rdi

ret