diff options
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf | 2 | ||||
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.nasm | 68 |
2 files changed, 70 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf b/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf index 8ab21350b4..bfa40b066b 100644 --- a/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf +++ b/MdePkg/Library/BaseMemoryLibSse2/BaseMemoryLibSse2.inf @@ -59,6 +59,7 @@ Ia32/ZeroMem.S
Ia32/SetMem64.nasm
Ia32/SetMem64.S
+ Ia32/SetMem32.nasm
Ia32/SetMem32.S
Ia32/SetMem16.S
Ia32/SetMem.S
@@ -77,6 +78,7 @@ Ia32/ZeroMem.asm
Ia32/SetMem64.nasm
Ia32/SetMem64.asm
+ Ia32/SetMem32.nasm
Ia32/SetMem32.asm
Ia32/SetMem16.asm
Ia32/SetMem.asm
diff --git a/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.nasm b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.nasm new file mode 100644 index 0000000000..e0848f2041 --- /dev/null +++ b/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem32.nasm @@ -0,0 +1,68 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; 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.nasm
+;
+; Abstract:
+;
+; SetMem32 function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; InternalMemSetMem32 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT32 Value
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalMemSetMem32)
+ASM_PFX(InternalMemSetMem32):
+ push edi
+ mov edx, [esp + 12]
+ mov edi, [esp + 8]
+ xor ecx, ecx
+ sub ecx, edi
+ and ecx, 15 ; ecx + edi aligns on 16-byte boundary
+ mov eax, [esp + 16]
+ jz .0
+ shr ecx, 2
+ cmp ecx, edx
+ cmova ecx, edx
+ sub edx, ecx
+ rep stosd
+.0:
+ mov ecx, edx
+ and edx, 3
+ shr ecx, 2
+ jz @SetDwords
+ movd xmm0, eax
+ pshufd xmm0, xmm0, 0
+.1:
+ movntdq [edi], xmm0
+ add edi, 16
+ loop .1
+ mfence
+@SetDwords:
+ mov ecx, edx
+ rep stosd
+ mov eax, [esp + 8]
+ pop edi
+ ret
+
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