1 #include<stdio.h>
2 #include<assert.h>
3 
main()4 int main()
5 {
6     int rt, rs, dsp;
7     int result;
8 
9     /* msb = 10, lsb = 5 */
10     dsp    = 0x305;
11     rt     = 0x12345678;
12     rs     = 0x87654321;
13     result = 0x12345438;
14     __asm
15         ("wrdsp %2, 0x03\n\t"
16          "insv  %0, %1\n\t"
17          : "+r"(rt)
18          : "r"(rs), "r"(dsp)
19         );
20     assert(rt == result);
21 
22     dsp    = 0x1000;
23     rt     = 0xF0F0F0F0;
24     rs     = 0xA5A5A5A5;
25     result = 0xA5A5A5A5;
26 
27     __asm
28         ("wrdsp %2\n\t"
29          "insv  %0, %1\n\t"
30          : "+r"(rt)
31          : "r"(rs), "r"(dsp)
32         );
33     assert(rt == result);
34 
35     return 0;
36 }
37