1#------------------------------------------------------------------------------ 2# 3# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> 4# This program and the accompanying materials 5# are licensed and made available under the terms and conditions of the BSD License 6# which accompanies this distribution. The full text of the license may be found at 7# http://opensource.org/licenses/bsd-license.php. 8# 9# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11# 12# Module Name: 13# 14# SetMem32.asm 15# 16# Abstract: 17# 18# SetMem32 function 19# 20# Notes: 21# 22#------------------------------------------------------------------------------ 23 24ASM_GLOBAL ASM_PFX(InternalMemSetMem32) 25 26#------------------------------------------------------------------------------ 27# VOID * 28# EFIAPI 29# InternalMemSetMem32 ( 30# IN VOID *Buffer, 31# IN UINTN Count, 32# IN UINT32 Value 33# ); 34#------------------------------------------------------------------------------ 35ASM_PFX(InternalMemSetMem32): 36 push %edi 37 movl 12(%esp), %edx 38 movl 8(%esp), %edi 39 xorl %ecx, %ecx 40 subl %edi, %ecx 41 andl $15, %ecx # ecx + edi aligns on 16-byte boundary 42 movl 16(%esp), %eax 43 jz L0 44 shrl $2, %ecx 45 cmpl %edx, %ecx 46 cmova %edx, %ecx 47 subl %ecx, %edx 48 rep 49 stosl 50L0: 51 movl %edx, %ecx 52 andl $3, %edx 53 shrl $2, %ecx 54 jz L_SetDwords 55 movd %eax, %xmm0 56 pshufd $0, %xmm0, %xmm0 57L1: 58 movntdq %xmm0, (%edi) 59 addl $16, %edi 60 loop L1 61 mfence 62L_SetDwords: 63 movl %edx, %ecx 64 rep 65 stosl 66 movl 8(%esp), %eax 67 pop %edi 68 ret 69