MdePkg/Library/BaseSynchronizationLib/Ipf/InterlockedCompareExchange16.s

   1 /// @file
   2 ///   Contains an implementation of InterlockedCompareExchange16 on Itanium-
   3 ///   based architecture.
   4 ///
   5 /// Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
   6 /// Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
   7 /// This program and the accompanying materials
   8 /// are licensed and made available under the terms and conditions of the BSD License
   9 /// which accompanies this distribution.  The full text of the license may be found at
  10 /// http://opensource.org/licenses/bsd-license.php.
  11 ///
  12 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14 ///
  15 /// Module Name:  InterlockedCompareExchange16.s
  16 ///
  17 ///
  18
  19 .auto
  20 .text
  21
  22 .proc   InternalSyncCompareExchange16
  23 .type   InternalSyncCompareExchange16, @function
  24 InternalSyncCompareExchange16::
  25         zxt2                r33 = r33
  26         mov                 ar.ccv = r33
  27         cmpxchg2.rel        r8  = [r32], r34
  28         mf
  29         br.ret.sptk.many    b0
  30 .endp   InternalSyncCompareExchange16