summaryrefslogtreecommitdiffstats
path: root/qemu/tests/tcg/mips/mips32-dsp/addwc.c
blob: 8a8d81fab4caa339b7db8439a6eb0ba123d1ce42 (plain)
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
#include<stdio.h>
#include<assert.h>

int main()
{
    int rd, rs, rt;
    int dspi, dspo;
    int result;

    rs     = 0x10FF01FF;
    rt     = 0x10010001;
    dspi   = 0x00002000;
    result = 0x21000201;
    __asm
        ("wrdsp %3\n"
         "addwc %0, %1, %2\n\t"
         : "=r"(rd)
         : "r"(rs), "r"(rt), "r"(dspi)
        );
    assert(rd == result);

    rs     = 0xFFFF1111;
    rt     = 0x00020001;
    dspi   = 0x00;
    result = 0x00011112;
    __asm
        ("wrdsp %3\n"
         "addwc %0, %1, %2\n\t"
         : "=r"(rd)
         : "r"(rs), "r"(rt), "r"(dspi)
        );
    assert(rd == result);

    rs     = 0x8FFF1111;
    rt     = 0x80020001;
    dspi   = 0x00;
    result = 0x10011112;
    __asm
        ("wrdsp %4\n"
         "addwc %0, %2, %3\n\t"
         "rddsp %1\n\t"
         : "=r"(rd), "=r"(dspo)
         : "r"(rs), "r"(rt), "r"(dspi)
        );
    assert(rd == result);
    assert(((dspo >> 20) & 0x01) == 1);

    return 0;
}