X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseMemoryLibSse2%2FIa32%2FSetMem32.S;h=f91169a6e00b3e96da3ee8a0b1f1013b10faf874;hp=8b0095a1e2b53b47a67763781076f0c983177c10;hb=f1baef624fb7119c54c3389a2cd99b108ee08f0e;hpb=e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8 diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S index 8b0095a1e2..f91169a6e0 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.S @@ -1,73 +1,68 @@ -// -// Include common header file for this module. -// -#include "CommonHeader.h" - -#------------------------------------------------------------------------------ -# -# 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: -# -# SetMem32.asm -# -# Abstract: -# -# SetMem32 function -# -# Notes: -# -#------------------------------------------------------------------------------ - -.globl _InternalMemSetMem32 - -#------------------------------------------------------------------------------ -# VOID * -# EFIAPI -# InternalMemSetMem32 ( -# IN VOID *Buffer, -# IN UINTN Count, -# IN UINT32 Value -# ); -#------------------------------------------------------------------------------ -_InternalMemSetMem32: - 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 $2, %ecx - cmpl %edx, %ecx - cmova %edx, %ecx - subl %ecx, %edx - rep - stosl -L0: - movl %edx, %ecx - andl $3, %edx - shrl $2, %ecx - jz L_SetDwords - movd %eax, %xmm0 - pshufd $0, %xmm0, %xmm0 -L1: - movntdq %xmm0, (%edi) - addl $16, %edi - loop L1 - mfence -L_SetDwords: - movl %edx, %ecx - rep - stosl - movl 8(%esp), %eax - pop %edi - ret +#------------------------------------------------------------------------------ +# +# 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: +# +# SetMem32.asm +# +# Abstract: +# +# SetMem32 function +# +# Notes: +# +#------------------------------------------------------------------------------ + +.globl _InternalMemSetMem32 + +#------------------------------------------------------------------------------ +# VOID * +# EFIAPI +# InternalMemSetMem32 ( +# IN VOID *Buffer, +# IN UINTN Count, +# IN UINT32 Value +# ); +#------------------------------------------------------------------------------ +_InternalMemSetMem32: + 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 $2, %ecx + cmpl %edx, %ecx + cmova %edx, %ecx + subl %ecx, %edx + rep + stosl +L0: + movl %edx, %ecx + andl $3, %edx + shrl $2, %ecx + jz L_SetDwords + movd %eax, %xmm0 + pshufd $0, %xmm0, %xmm0 +L1: + movntdq %xmm0, (%edi) + addl $16, %edi + loop L1 + mfence +L_SetDwords: + movl %edx, %ecx + rep + stosl + movl 8(%esp), %eax + pop %edi + ret