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
|
#include "io.h"
int main(void)
{
long long rs, rt, dsp;
long long achi, acli;
long long acho, aclo;
long long resl, resh;
achi = 0x4;
acli = 0x4;
rs = 0x5678123443218765;
rt = 0x4321876556781234;
resh = 0x4;
resl = 0x342fcbd4;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"mulsaq_s.w.qh $ac1, %4, %5\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
: "=r"(acho), "=r"(aclo)
: "r"(achi), "r"(acli), "r"(rs), "r"(rt)
);
if ((acho != resh) || (aclo != resl)) {
printf("1 mulsaq_s.w.qh wrong\n");
return -1;
}
achi = 0x4;
acli = 0x4;
rs = 0x8000800087654321;
rt = 0x8000800012345678;
resh = 0x3;
resl = 0xffffffffe5e81a1c;
__asm
("mthi %3, $ac1\n\t"
"mtlo %4, $ac1\n\t"
"mulsaq_s.w.qh $ac1, %5, %6\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
"rddsp %2\n\t"
: "=r"(acho), "=r"(aclo), "=r"(dsp)
: "r"(achi), "r"(acli), "r"(rs), "r"(rt)
);
dsp = (dsp >> 17) & 0x1;
if ((dsp != 0x1) || (acho != resh) || (aclo != resl)) {
printf("2 mulsaq_s.w.qh wrong\n");
return -1;
}
return 0;
}
|
