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
60
61
62
63
64
|
/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef INCLUDE_PRIVATE_DSP_ARCH_X86_COPY_H_
#define INCLUDE_PRIVATE_DSP_ARCH_X86_COPY_H_
namespace lsp
{
namespace x86
{
void copy(float *dst, const float *src, size_t count)
{
IF_ARCH_X86_64(size_t tmp);
ARCH_X86_64_ASM
(
__ASM_EMIT("mov %[count], %[tmp]")
__ASM_EMIT("shr $1, %[count]")
__ASM_EMIT("jz 1f")
__ASM_EMIT("rep movsq")
__ASM_EMIT("1:")
__ASM_EMIT("test $1, %[tmp]")
__ASM_EMIT("jz 2f")
__ASM_EMIT("movsd ")
__ASM_EMIT("2:")
: [dst] "+D" (dst), [src] "+S" (src),
[tmp] "=&r" (tmp), [count] "+c" (count)
:
: "cc", "memory"
);
ARCH_I386_ASM
(
__ASM_EMIT("rep movsl")
: [dst] "+D" (dst), [src] "+S" (src),
[count] "+c" (count)
:
: "cc", "memory"
);
}
}
}
#endif /* INCLUDE_PRIVATE_DSP_ARCH_X86_COPY_H_ */
|
