1 files changed, 37 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/InterlockedDecrement.asm b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/InterlockedDecrement.asm
new file mode 100644
index 0000000..ffa1e58
--- /dev/null
+++ b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/InterlockedDecrement.asm
@@ -0,0 +1,37 @@
+; Copyright (c) 2004, 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:
+;
+;   InterlockedDecrement.Asm
+;
+; Abstract:
+;
+;   InterlockedDecrement function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    .code
+
+;------------------------------------------------------------------------------
+; UINT32
+; EFIAPI
+; InterlockedDecrement (
+;   IN      UINT32                    *Value
+;   );
+;------------------------------------------------------------------------------
+InternalSyncDecrement   PROC
+    lock    dec     dword ptr [rcx]
+    mov     eax, [rcx]
+    ret
+InternalSyncDecrement   ENDP
+
+    END