From e1f414b6a7d8a0424e0e01f655b09a4612b4d0e8 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 22 Jun 2007 03:21:45 +0000
Subject: Import some basic libraries instances for Mde Packages.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2704 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../BaseMemoryLibRepStr/Ia32/CompareMem.asm        | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm

(limited to 'MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm')

diff --git a/MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm b/MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm
new file mode 100644
index 0000000000..dabd337a7c
--- /dev/null
+++ b/MdePkg/Library/BaseMemoryLibRepStr/Ia32/CompareMem.asm
@@ -0,0 +1,59 @@
+//
+// 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:
+;
+;   CompareMem.Asm
+;
+; Abstract:
+;
+;   CompareMem function
+;
+; Notes:
+;
+;   The following BaseMemoryLib instances share the same version of this file:
+;
+;       BaseMemoryLibRepStr
+;       BaseMemoryLibMmx
+;       BaseMemoryLibSse2
+;
+;------------------------------------------------------------------------------
+
+    .686
+    .model  flat,C
+    .code
+
+;------------------------------------------------------------------------------
+; INTN
+; EFIAPI
+; InternalMemCompareMem (
+;   IN      CONST VOID                *DestinationBuffer,
+;   IN      CONST VOID                *SourceBuffer,
+;   IN      UINTN                     Length
+;   );
+;------------------------------------------------------------------------------
+InternalMemCompareMem   PROC    USES    esi edi
+    mov     esi, [esp + 12]
+    mov     edi, [esp + 16]
+    mov     ecx, [esp + 20]
+    repe    cmpsb
+    movzx   eax, byte ptr [esi - 1]
+    movzx   edx, byte ptr [edi - 1]
+    sub     eax, edx
+    ret
+InternalMemCompareMem   ENDP
+
+    END
-- 
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