MdePkg/Library/BaseLib/X64/InterlockedDecrement.c

   1 /** @file
   2   InterlockedDecrement function
   3
   4   Copyright (c) 2006 - 2007, 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 //
  16 // Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics
  17 //
  18 long _InterlockedDecrement(
  19    long * lpAddend
  20 );
  21
  22 #pragma intrinsic(_InterlockedDecrement)
  23
  24 UINT32
  25 EFIAPI
  26 InternalSyncDecrement (
  27   IN      UINT32                    *Value
  28   )
  29 {
  30   return _InterlockedDecrement (Value);
  31 }
  32