blob: d776688985ed4ffec2e2c515e78fa6da1c25d57b (
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
60
61
62
63
|
/*
* Test the CONVERT TO DECIMAL instruction.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <assert.h>
#include <stdint.h>
#include <stdlib.h>
static uint64_t cvd(int32_t x)
{
uint64_t ret;
asm("cvd %[x],%[ret]" : [ret] "=R" (ret) : [x] "r" (x));
return ret;
}
static uint64_t cvdy(int32_t x)
{
uint64_t ret;
asm("cvdy %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x));
return ret;
}
static __uint128_t cvdg(int64_t x)
{
__uint128_t ret;
asm("cvdg %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x));
return ret;
}
int main(void)
{
__uint128_t m = (((__uint128_t)0x9223372036854775) << 16) | 0x8070;
assert(cvd(0) == 0xc);
assert(cvd(1) == 0x1c);
assert(cvd(25594) == 0x25594c);
assert(cvd(-1) == 0x1d);
assert(cvd(0x7fffffff) == 0x2147483647c);
assert(cvd(-0x80000000) == 0x2147483648d);
assert(cvdy(0) == 0xc);
assert(cvdy(1) == 0x1c);
assert(cvdy(25594) == 0x25594c);
assert(cvdy(-1) == 0x1d);
assert(cvdy(0x7fffffff) == 0x2147483647c);
assert(cvdy(-0x80000000) == 0x2147483648d);
assert(cvdg(0) == 0xc);
assert(cvdg(1) == 0x1c);
assert(cvdg(25594) == 0x25594c);
assert(cvdg(-1) == 0x1d);
assert(cvdg(0x7fffffffffffffff) == (m + 0xc));
assert(cvdg(-0x8000000000000000) == (m + 0x1d));
return EXIT_SUCCESS;
}
|
