1 files changed, 64 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.c b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.c
new file mode 100644
index 0000000000..e1809f07e6
--- /dev/null
+++ b/EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/Ia32/EfiSetMemRep4.c
@@ -0,0 +1,64 @@
+/*++
+
+Copyright (c) 2007, 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:
+
+  EfiSetMemRep4.c
+
+Abstract:
+
+  This is the code that uses rep stosd SetMem service
+
+--*/
+
+#include "Tiano.h"
+
+VOID
+EfiCommonLibSetMem (
+  IN VOID   *Buffer,
+  IN UINTN  Count,
+  IN UINT8  Value
+  )
+/*++
+
+Input:  VOID   *Buffer - Pointer to buffer to write
+        UINTN  Count   - Number of bytes to write
+        UINT8  Value   - Value to write
+
+Output: None.
+
+Saves:
+
+Modifies:
+
+Description:  This function uses rep stosd to set memory.
+
+--*/
+{
+  __asm {
+    mov         ecx, Count
+    test        ecx, ecx
+    je          Exit
+    mov         al,  Value
+    mov         ah,  al
+    shrd        edx, eax, 16
+    shld        eax, edx, 16
+    mov         edx, ecx
+    mov         edi, Buffer
+    shr         ecx, 2
+    rep stosd
+    mov         ecx, edx
+    and         ecx, 3
+    rep stosb
+Exit:
+  }
+}
+