summaryrefslogtreecommitdiff
path: root/MdePkg/Library/BaseMemoryLibSse2/Ia32/SetMem64.S
blob: fa60007f5ae09d6f24edc48641f3e8e0195a6a87 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
#------------------------------------------------------------------------------
#
# Copyright (c) 2006, Intel Corporation
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
# Module Name:
#
#   SetMem64.S
#
# Abstract:
#
#   SetMem64 function
#
# Notes:
#
#------------------------------------------------------------------------------

#------------------------------------------------------------------------------
#  VOID *
#  InternalMemSetMem64 (
#    IN VOID   *Buffer,
#    IN UINTN  Count,
#    IN UINT64 Value
#    )
#------------------------------------------------------------------------------
.globl _InternalMemSetMem64
_InternalMemSetMem64:
    movl    4(%esp), %eax
    movl    8(%esp), %ecx
    testb   $8, %al
    movl    %eax, %edx
    movq    0xc(%esp), %xmm0
    jz      L1
    movq    %xmm0, (%edx)
    addl    $8, %edx
    decl    %ecx
L1: 
    shrl    %ecx
    jz      @SetQwords
    movlhps %xmm0, %xmm0
L2: 
    movntdq %xmm0, (%edx)
    leal    16(%edx), %edx
    loop    L2
    mfence
@SetQwords: 
    jnc     L3
    movq    %xmm0, (%edx)
L3: 
    ret