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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* QEMU TILE-Gx helpers
*
* Copyright (c) 2015 Chen Gang
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>
*/
#include "cpu.h"
#include "qemu-common.h"
#include "exec/helper-proto.h"
/* Broadcast a value to all elements of a vector. */
#define V1(X) (((X) & 0xff) * 0x0101010101010101ull)
#define V2(X) (((X) & 0xffff) * 0x0001000100010001ull)
uint64_t helper_v1multu(uint64_t a, uint64_t b)
{
uint64_t r = 0;
int i;
for (i = 0; i < 64; i += 8) {
unsigned ae = extract64(a, i, 8);
unsigned be = extract64(b, i, 8);
r = deposit64(r, i, 8, ae * be);
}
return r;
}
uint64_t helper_v1shl(uint64_t a, uint64_t b)
{
uint64_t m;
b &= 7;
m = V1(0xff >> b);
return (a & m) << b;
}
uint64_t helper_v2shl(uint64_t a, uint64_t b)
{
uint64_t m;
b &= 15;
m = V2(0xffff >> b);
return (a & m) << b;
}
uint64_t helper_v1shru(uint64_t a, uint64_t b)
{
uint64_t m;
b &= 7;
m = V1(0xff << b);
return (a & m) >> b;
}
uint64_t helper_v2shru(uint64_t a, uint64_t b)
{
uint64_t m;
b &= 15;
m = V2(0xffff << b);
return (a & m) >> b;
}
uint64_t helper_v1shrs(uint64_t a, uint64_t b)
{
uint64_t r = 0;
int i;
b &= 7;
for (i = 0; i < 64; i += 8) {
r = deposit64(r, i, 8, sextract64(a, i + b, 8 - b));
}
return r;
}
uint64_t helper_v2shrs(uint64_t a, uint64_t b)
{
uint64_t r = 0;
int i;
b &= 15;
for (i = 0; i < 64; i += 16) {
r = deposit64(r, i, 16, sextract64(a, i + b, 16 - b));
}
return r;
}
|