MdePkg/Library/BaseLib/X64/InterlockedCompareExchange32.c

   1 /** @file
   2   InterlockedCompareExchange32 function
   3
   4   Copyright (c) 2006, Intel Corporation<BR>
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #if _MSC_EXTENSIONS
  16
  17 //
  18 // Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics
  19 //
  20 long _InterlockedCompareExchange(
  21    long volatile * Destination,
  22    long Exchange,
  23    long Comperand
  24 );
  25
  26 #pragma intrinsic(_InterlockedCompareExchange)
  27
  28 UINT32
  29 EFIAPI
  30 InternalSyncCompareExchange32 (
  31   IN      UINT32                    *Value,
  32   IN      UINT32                    CompareValue,
  33   IN      UINT32                    ExchangeValue
  34   )
  35 {
  36   return _InterlockedCompareExchange (Value, ExchangeValue, CompareValue);
  37 }
  38
  39
  40 #endif