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      1 ;------------------------------------------------------------------------------
      2 ;
      3 ; Copyright (c) 2006 - 2015, 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 ;   ScanMem64.Asm
     15 ;
     16 ; Abstract:
     17 ;
     18 ;   ScanMem64 function
     19 ;
     20 ; Notes:
     21 ;
     22 ;   The following BaseMemoryLib instances contain the same copy of this file:
     23 ;
     24 ;       BaseMemoryLibRepStr
     25 ;       BaseMemoryLibMmx
     26 ;       BaseMemoryLibSse2
     27 ;       BaseMemoryLibOptDxe
     28 ;       BaseMemoryLibOptPei
     29 ;
     30 ;------------------------------------------------------------------------------
     31 
     32     .686
     33     .model  flat,C
     34     .code
     35 
     36 ;------------------------------------------------------------------------------
     37 ; CONST VOID *
     38 ; EFIAPI
     39 ; InternalMemScanMem64 (
     40 ;   IN      CONST VOID                *Buffer,
     41 ;   IN      UINTN                     Length,
     42 ;   IN      UINT64                    Value
     43 ;   );
     44 ;------------------------------------------------------------------------------
     45 InternalMemScanMem64    PROC    USES    edi
     46     mov     ecx, [esp + 12]
     47     mov     eax, [esp + 16]
     48     mov     edx, [esp + 20]
     49     mov     edi, [esp + 8]
     50 @@:
     51     cmp     eax, [edi]
     52     lea     edi, [edi + 8]
     53     loopne  @B
     54     jne     @F
     55     cmp     edx, [edi - 4]
     56     jecxz   @F
     57     jne     @B
     58 @@:
     59     lea     eax, [edi - 8]
     60     jz      @F
     61     mov     eax, ecx
     62 @@:    
     63     ret
     64 InternalMemScanMem64    ENDP
     65 
     66     END
     67