1 #include<stdio.h>
2 #include<assert.h>
3
main()4 int main()
5 {
6 int rd, rs, rt;
7 int dsp;
8 int result;
9
10 rs = 0x12345678;
11 rt = 0x87654321;
12 result = 0x12348765;
13
14 __asm
15 ("wrdsp $0\n\t"
16 "precrq_rs.ph.w %0, %1, %2\n\t"
17 : "=r"(rd)
18 : "r"(rs), "r"(rt)
19 );
20 assert(result == rd);
21
22 rs = 0x7FFFC678;
23 rt = 0x865432A0;
24 result = 0x7FFF8654;
25
26 __asm
27 ("wrdsp $0\n\t"
28 "precrq_rs.ph.w %0, %2, %3\n\t"
29 "rddsp %1\n\t"
30 : "=r"(rd), "=r"(dsp)
31 : "r"(rs), "r"(rt)
32 );
33 assert(((dsp >> 22) & 0x01) == 1);
34 assert(result == rd);
35
36 rs = 0xBEEFFEED;
37 rt = 0x7FFF8000;
38 result = 0xBEF07FFF;
39
40 __asm
41 ("wrdsp $0\n\t"
42 "precrq_rs.ph.w %0, %2, %3\n\t"
43 "rddsp %1\n\t"
44 : "=r"(rd), "=r"(dsp)
45 : "r"(rs), "r"(rt)
46 );
47 assert(((dsp >> 22) & 0x01) == 1);
48 assert(result == rd);
49
50 return 0;
51 }
52