audk/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem.S

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ArmAsm
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#
# ConvertAsm.py: Automatically generated from SetMem.asm
#
#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2008, 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.S
#
# Abstract:
#
# SetMem function
#
# Notes:
#
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# VOID *
# EFIAPI
# InternalMemSetMem (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT8 Value
# )
#------------------------------------------------------------------------------
.intel_syntax noprefix
.globl ASM_PFX(InternalMemSetMem)
ASM_PFX(InternalMemSetMem):
push rdi
mov rax, r8
mov ah, al
movq mm0, rax
mov r8, rcx
mov rdi, r8 # rdi <- Buffer
mov rcx, rdx
and edx, 7
shr rcx, 3
jz L_SetBytes
pshufw mm0, mm0, 0x0
L0:
movntq [rdi], mm0
add rdi, 8
loop L0
mfence
L_SetBytes:
mov ecx, edx
rep stosb
mov rax, r8
pop rdi
ret