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      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 ;   WriteDr4.Asm
     15 ;
     16 ; Abstract:
     17 ;
     18 ;   AsmWriteDr4 function
     19 ;
     20 ; Notes:
     21 ;
     22 ;------------------------------------------------------------------------------
     23 
     24     .code
     25 
     26 ;------------------------------------------------------------------------------
     27 ; UINTN
     28 ; EFIAPI
     29 ; AsmWriteDr4 (
     30 ;   IN UINTN Value
     31 ;   );
     32 ;------------------------------------------------------------------------------
     33 AsmWriteDr4 PROC
     34     ;
     35     ; There's no obvious reason to access this register, since it's aliased to
     36     ; DR6 when DE=0 or an exception generated when DE=1
     37     ;
     38     DB      0fh, 23h, 0e1h
     39     mov     rax, rcx
     40     ret
     41 AsmWriteDr4 ENDP
     42 
     43     END
     44