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
|
#include<stdio.h>
#include<assert.h>
int main()
{
int rt, rs;
int achi, acli;
int dsp;
int acho, aclo;
int resulth, resultl;
int resdsp;
achi = 0x00000005;
acli = 0x0000B4CB;
rs = 0x0000FF06;
rt = 0x0000CB00;
resulth = 0x00000005;
resultl = 0x006838CB;
__asm
("mthi %2, $ac1\n\t"
"mtlo %3, $ac1\n\t"
"maq_s.w.phr $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)
);
assert(resulth == acho);
assert(resultl == aclo);
achi = 0x00000006;
acli = 0x0000B4CB;
rs = 0x00008000;
rt = 0x00008000;
resulth = 0x00000006;
resultl = 0x8000B4CA;
resdsp = 1;
__asm
("mthi %3, $ac1\n\t"
"mtlo %4, $ac1\n\t"
"maq_s.w.phr $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)
);
assert(resulth == acho);
assert(resultl == aclo);
assert(((dsp >> 17) & 0x01) == resdsp);
return 0;
}
|