1 #------------------------------------------------------------------------------ 2 # 3 # Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 4 # This program and the accompanying materials 5 # are licensed and made available under the terms and conditions of the BSD License 6 # which accompanies this distribution. The full text of the license may be found at 7 # http://opensource.org/licenses/bsd-license.php 8 # 9 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 # 12 # Module Name: 13 # 14 # InterlockedCompareExchange32.Asm 15 # 16 # Abstract: 17 # 18 # InterlockedCompareExchange32 function 19 # 20 # Notes: 21 # 22 #------------------------------------------------------------------------------ 23 #include <EdkIIGlueBase.h> 24 #------------------------------------------------------------------------------ 25 # UINT32 26 # EFIAPI 27 # InterlockedCompareExchange32 ( 28 # IN UINT32 *Value, 29 # IN UINT32 CompareValue, 30 # IN UINT32 ExchangeValue 31 # ); 32 #------------------------------------------------------------------------------ 33 .globl ASM_PFX(InternalSyncCompareExchange32) 34 ASM_PFX(InternalSyncCompareExchange32): 35 mov %edx, %eax 36 lock cmpxchg %r8d, (%rcx) 37 ret 38
