MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem16.S File Reference
Detailed Description
#------------------------------------------------------------------------------
#
# 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:
#
#
SetMem16.asm
#
# Abstract:
#
# SetMem16 function
#
# Notes:
#
#------------------------------------------------------------------------------
ASM_GLOBAL
ASM_PFX(InternalMemSetMem16)
#------------------------------------------------------------------------------
# VOID *
# InternalMemSetMem16 (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT16 Value
# )
#------------------------------------------------------------------------------
ASM_PFX(InternalMemSetMem16):
push edi
movl 16(esp), eax
shrdl $16, eax, edx
shldl $16, edx, eax
movl 12(esp), edx
movl 8(esp), edi
movl edx, ecx
andl $3, edx
shrl $2, ecx
jz L1
movd eax, mm0
movd eax, mm1
psllq $32, mm0
por mm1, mm0
L0:
movq mm0, (edi)
addl $8, edi
loop L0
L1:
movl edx, ecx
rep
stosw
movl 8(esp), eax
pop edi
ret