text: /** @file
    InterlockedDecrement function
  
    Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
    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.
  
  **/
  
  
  
  
  /**
    Performs an atomic decrement of an 32-bit unsigned integer.
  
    Performs an atomic decrement of the 32-bit unsigned integer specified by
    Value and returns the decrement value. The decrement operation must be
    performed using MP safe mechanisms. The state of the return value is not
    guaranteed to be MP safe.
  
    @param  Value A pointer to the 32-bit value to decrement.
  
    @return The decrement value.
  
  **/
  UINT32
  EFIAPI
  InternalSyncDecrement (
    IN      volatile UINT32           *Value
    )
  {
    _asm {
      mov     eax, Value
      lock    dec     dword ptr [eax]
      mov     eax, [eax]
    }
  }
  