MdePkg/Library/BaseMemoryLibRepStr/Ia32/ScanMem32.S

   1 #------------------------------------------------------------------------------
   2 #
   3 # Copyright (c) 2006, Intel Corporation
   4 # All rights reserved. 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 #   ScanMem32.Asm
  15 #
  16 # Abstract:
  17 #
  18 #   ScanMem32 function
  19 #
  20 # Notes:
  21 #
  22 #   The following BaseMemoryLib instances share the same version of this file:
  23 #
  24 #       BaseMemoryLibRepStr
  25 #       BaseMemoryLibMmx
  26 #       BaseMemoryLibSse2
  27 #
  28 #------------------------------------------------------------------------------
  29
  30     .686:
  31     .code:
  32
  33 .global _InternalMemScanMem32
  34 _InternalMemScanMem32:
  35     push    %edi
  36     movl    12(%esp),%ecx
  37     movl    8(%esp),%edi
  38     movl    16(%esp),%eax
  39     repne   scasl
  40     leal    -4(%edi),%eax
  41     cmovnz  %ecx, %eax
  42     pop     %edi
  43     ret