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      1 ;------------------------------------------------------------------------------
      2 ;
      3 ; MemoryFence() for AArch64
      4 ;
      5 ; Copyright (c) 2013, ARM Ltd. All rights reserved.
      6 ;
      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 ;------------------------------------------------------------------------------
     16 
     17     EXPORT MemoryFence
     18 
     19     AREA MemoryBarriers, CODE, READONLY
     20 
     21 ;/**
     22 ;  Used to serialize load and store operations.
     23 ;
     24 ;  All loads and stores that proceed calls to this function are guaranteed to be
     25 ;  globally visible when this function returns.
     26 ;
     27 ;**/
     28 ;VOID
     29 ;EFIAPI
     30 ;MemoryFence (
     31 ;  VOID
     32 ;  );
     33 ;
     34 MemoryFence FUNCTION
     35     dmb
     36     bx      lr
     37     ENDFUNC
     38 
     39     END
     40