+++ /dev/null
-#------------------------------------------------------------------------------
-#
-# 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:
-#
-# SetMem.asm
-#
-# Abstract:
-#
-# SetMem function
-#
-# Notes:
-#
-#------------------------------------------------------------------------------
-
- .686:
- #.MODEL flat,C
- .xmm:
- .code:
-
-#------------------------------------------------------------------------------
-# VOID *
-# _mem_SetMem (
-# IN VOID *Buffer,
-# IN UINTN Count,
-# IN UINT8 Value
-# )
-#------------------------------------------------------------------------------
-.global _InternalMemSetMem
-_InternalMemSetMem:
- push %edi
- movl 12(%esp), %ecx # ecx <- Count
- movl 8(%esp), %edi # edi <- Buffer
- movl %ecx, %edx
- shrl $3, %ecx # # of Qwords to set
- movb 16(%esp), %al # al <- Value
- jz @SetBytes
- movb %al, %ah # ax <- Value | (Value << 8)
- pushl %ecx
- pushl %ecx
- movq %mm0, (%esp) # save mm0
- movd %eax, %mm0
- pshufw $0x0,%mm0,%mm0
-L0:
- movntq %mm0, (%edi)
- addl $8, %edi
- loop L0
- mfence
- movq (%esp), %mm0 # restore mm0
- popl %ecx # stack cleanup
- popl %ecx
-@SetBytes:
- andl $7, %edx
- movl %edx, %ecx
- rep
- stosb
- movl 8(%esp), %eax # eax <- Buffer as return value
- pop %edi
- ret