xref: /openbmc/qemu/tests/tcg/s390x/csst.c (revision da054c64)
1 #include <stdint.h>
2 #include <unistd.h>
3 
4 int main(void)
5 {
6     uint64_t parmlist[] = {
7         0xfedcba9876543210ull,
8         0,
9         0x7777777777777777ull,
10         0,
11     };
12     uint64_t op1 = 0x0123456789abcdefull;
13     uint64_t op2 = 0;
14     uint64_t op3 = op1;
15     uint64_t cc;
16 
17     asm volatile(
18         "    lghi %%r0,%[flags]\n"
19         "    la %%r1,%[parmlist]\n"
20         "    csst %[op1],%[op2],%[op3]\n"
21         "    ipm %[cc]\n"
22         : [op1] "+m" (op1),
23           [op2] "+m" (op2),
24           [op3] "+r" (op3),
25           [cc] "=r" (cc)
26         : [flags] "K" (0x0301),
27           [parmlist] "m" (parmlist)
28         : "r0", "r1", "cc", "memory");
29     cc = (cc >> 28) & 3;
30     if (cc) {
31         write(1, "bad cc\n", 7);
32         return 1;
33     }
34     if (op1 != parmlist[0]) {
35         write(1, "bad op1\n", 8);
36         return 1;
37     }
38     if (op2 != parmlist[2]) {
39         write(1, "bad op2\n", 8);
40         return 1;
41     }
42     return 0;
43 }
44