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
|
#include<stdio.h>
#include<assert.h>
int main()
{
int rs, rt;
int ach = 5, acl = 5;
int resulth, resultl;
rs = 0x00FF00FF;
rt = 0x00010002;
resulth = 0x05;
resultl = 0x0302;
__asm
("mthi %0, $ac1\n\t"
"mtlo %1, $ac1\n\t"
"dpa.w.ph $ac1, %2, %3\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
: "+r"(ach), "+r"(acl)
: "r"(rs), "r"(rt)
);
assert(ach == resulth);
assert(acl == resultl);
ach = 6, acl = 7;
rs = 0xFFFF00FF;
rt = 0xFFFF0002;
resulth = 0x05;
resultl = 0xfffe0206;
__asm
("mthi %0, $ac1\n\t"
"mtlo %1, $ac1\n\t"
"dpa.w.ph $ac1, %2, %3\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
: "+r"(ach), "+r"(acl)
: "r"(rs), "r"(rt)
);
assert(ach == resulth);
assert(acl == resultl);
return 0;
}
|
