1 files changed, 57 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ebc/Synchronization.c b/MdePkg/Library/BaseLib/Ebc/Synchronization.c
new file mode 100644
index 0000000..df591b2
--- /dev/null
+++ b/MdePkg/Library/BaseLib/Ebc/Synchronization.c
@@ -0,0 +1,57 @@
+/** @file
+  Implementation of synchronization functions on EBC.
+
+  Copyright (c) 2006, Intel Corporation<BR>
+  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:  Synchronization.c
+
+**/
+
+UINT32
+EFIAPI
+InternalSyncCompareExchange32 (
+  IN      volatile UINT32           *Value,
+  IN      UINT32                    CompareValue,
+  IN      UINT32                    ExchangeValue
+  )
+{
+  return *Value != CompareValue ? *Value :
+           ((*Value = ExchangeValue), CompareValue);
+}
+
+UINT64
+EFIAPI
+InternalSyncCompareExchange64 (
+  IN      volatile UINT64           *Value,
+  IN      UINT64                    CompareValue,
+  IN      UINT64                    ExchangeValue
+  )
+{
+  return *Value != CompareValue ? *Value :
+           ((*Value = ExchangeValue), CompareValue);
+}
+
+UINT32
+EFIAPI
+InternalSyncIncrement (
+  IN      volatile UINT32           *Value
+  )
+{
+  return ++*Value;
+}
+
+UINT32
+EFIAPI
+InternalSyncDecrement (
+  IN      volatile UINT32           *Value
+  )
+{
+  return --*Value;
+}