MdePkg/Library/BaseMemoryLibOptDxe/X64/ZeroMem.S File Reference
Detailed Description
#
# ConvertAsm.py: Automatically generated from
ZeroMem.asm
#
#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2009, 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.S
#
# Abstract:
#
# ZeroMem function
#
# Notes:
#
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# VOID *
# InternalMemZeroMem (
# IN VOID *Buffer,
# IN UINTN Count
# );
#------------------------------------------------------------------------------
ASM_GLOBAL
ASM_PFX(InternalMemZeroMem)
ASM_PFX(InternalMemZeroMem):
pushq rdi
pushq rcx
xorq rax, rax
movq rcx, rdi
movq rdx, rcx
shrq $3, rcx
andq $7, rdx
cld
rep stosq
movq rdx, rcx
rep stosb
popq rax
popq rdi
ret