#------------------------------------------------------------------------------ # # Copyright (c) 2006, Intel Corporation # 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: # # InterlockedCompareExchange32.Asm # # Abstract: # # InternalSyncCompareExchange32 function # # Notes: # #------------------------------------------------------------------------------ #------------------------------------------------------------------------------ # UINT32 # EFIAPI # InternalSyncCompareExchange32 ( # IN UINT32 *Value, # IN UINT32 CompareValue, # IN UINT32 ExchangeValue # ); #------------------------------------------------------------------------------ .global _InternalSyncCompareExchange32 _InternalSyncCompareExchange32: movl 4(%esp),%ecx movl 8(%esp),%eax movl 12(%esp),%edx lock cmpxchgl %edx,(%ecx) ret