diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ebc/Synchronization.c')
-rw-r--r-- | MdePkg/Library/BaseLib/Ebc/Synchronization.c | 57 |
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;
+}
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