#------------------------------------------------------------------------------ | |
# | |
# 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: | |
# | |
# SetMem16.asm | |
# | |
# Abstract: | |
# | |
# SetMem16 function | |
# | |
# Notes: | |
# | |
#------------------------------------------------------------------------------ | |
ASM_GLOBAL ASM_PFX(InternalMemSetMem16) | |
#------------------------------------------------------------------------------ | |
# VOID * | |
# EFIAPI | |
# InternalMemSetMem16 ( | |
# IN VOID *Buffer, | |
# IN UINTN Count, | |
# IN UINT16 Value | |
# ) | |
#------------------------------------------------------------------------------ | |
ASM_PFX(InternalMemSetMem16): | |
push %edi | |
movl 12(%esp), %edx | |
movl 8(%esp), %edi | |
xorl %ecx, %ecx | |
subl %edi, %ecx | |
andl $15, %ecx # ecx + edi aligns on 16-byte boundary | |
movl 16(%esp), %eax | |
jz L0 | |
shrl %ecx | |
cmpl %edx, %ecx | |
cmova %edx, %ecx | |
subl %ecx, %edx | |
rep | |
stosw | |
L0: | |
movl %edx, %ecx | |
andl $7, %edx | |
shrl $3, %ecx | |
jz L_SetWords | |
movd %eax, %xmm0 | |
pshuflw $0, %xmm0, %xmm0 | |
movlhps %xmm0, %xmm0 | |
L1: | |
movntdq %xmm0, (%edi) | |
addl $16, %edi | |
loop L1 | |
mfence | |
L_SetWords: | |
movl %edx, %ecx | |
rep | |
stosw | |
movl 8(%esp), %eax | |
pop %edi | |
ret |