text: /** @file
  
    Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
    SPDX-License-Identifier: BSD-2-Clause-Patent
  
  **/
  
  #include <Base.h>
  #include <Library/BaseLib.h>
  #include <Library/FspCommonLib.h>
  
  /**
  
    Switch the current stack to the previous saved stack.
  
    @param[in]  NewStack         The new stack to be switched.
  
    @return OldStack         After switching to the saved stack,
                             this value will be saved in eax before returning.
  
  
  **/
  UINT32
  SwapStack (
    IN  UINT32  NewStack
    )
  {
    FSP_GLOBAL_DATA  *FspData;
    UINT32           OldStack;
  
    FspData            = GetFspGlobalDataPointer ();
    OldStack           = FspData->CoreStack;
    FspData->CoreStack = NewStack;
    return OldStack;
  }
  