1#------------------------------------------------------------------------------
2#
3# Copyright (c) 2006 - 2008, 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
32ASM_GLOBAL ASM_PFX(InternalMemScanMem64)
33
34#------------------------------------------------------------------------------
35# CONST VOID *
36# EFIAPI
37# InternalMemScanMem64 (
38#   IN      CONST VOID                *Buffer,
39#   IN      UINTN                     Length,
40#   IN      UINT64                    Value
41#   );
42#------------------------------------------------------------------------------
43ASM_PFX(InternalMemScanMem64):
44    push    %edi
45    movl    12(%esp), %ecx
46    movl    16(%esp), %eax
47    movl    20(%esp), %edx
48    movl    8(%esp), %edi
49L0:
50    cmpl    (%edi), %eax
51    leal    8(%edi), %edi
52    loopne  L0
53    jne     L1
54    cmpl    -4(%edi), %edx
55    jecxz   L1
56    jne     L0
57L1:
58    leal    -8(%edi), %eax
59    cmovne  %ecx, %eax
60    pop     %edi
61    ret
62