1 #include<stdio.h>
2 #include<assert.h>
3
main()4 int main()
5 {
6 int rd, rs, rt, dsp;
7 int result, resultdsp;
8
9 rs = 0x03FB1234;
10 rt = 0x0BCC4321;
11 result = 0x7fff7FFF;
12 resultdsp = 1;
13
14 __asm
15 ("mul_s.ph %0, %2, %3\n\t"
16 "rddsp %1\n\t"
17 : "=r"(rd), "=r"(dsp)
18 : "r"(rs), "r"(rt)
19 );
20 dsp = (dsp >> 21) & 0x01;
21 assert(rd == result);
22 assert(dsp == resultdsp);
23
24 rs = 0x7fffff00;
25 rt = 0xff007fff;
26 result = 0x80008000;
27 resultdsp = 1;
28
29 __asm
30 ("mul_s.ph %0, %2, %3\n\t"
31 "rddsp %1\n\t"
32 : "=r"(rd), "=r"(dsp)
33 : "r"(rs), "r"(rt)
34 );
35 dsp = (dsp >> 21) & 0x01;
36 assert(rd == result);
37 assert(dsp == resultdsp);
38
39 dsp = 0;
40 __asm
41 ("wrdsp %0\n\t"
42 :
43 : "r"(dsp)
44 );
45
46 rs = 0x00320001;
47 rt = 0x00210002;
48 result = 0x06720002;
49 resultdsp = 0;
50
51 __asm
52 ("mul_s.ph %0, %2, %3\n\t"
53 "rddsp %1\n\t"
54 : "=r"(rd), "=r"(dsp)
55 : "r"(rs), "r"(rt)
56 );
57 dsp = (dsp >> 21) & 0x01;
58 assert(rd == result);
59 assert(dsp == resultdsp);
60
61 return 0;
62 }
63