1 /*
2  * Test R5900-specific MFLO1 and MFHI1.
3  */
4 
5 #include <stdio.h>
6 #include <inttypes.h>
7 #include <assert.h>
8 
9 int main()
10 {
11     int32_t rs  = 12207031, rt  = 305175781;
12     int32_t rs1 = 32452867, rt1 = 49979687;
13     int64_t lo, hi, lo1, hi1;
14     int64_t r, r1;
15 
16     /* Test both LO/HI and LO1/HI1 to verify separation. */
17     __asm__ __volatile__ (
18             "    mult $0, %4, %5\n"
19             "    mult1 $0, %6, %7\n"
20             "    mflo %0\n"
21             "    mfhi %1\n"
22             "    mflo1 %2\n"
23             "    mfhi1 %3\n"
24             : "=r" (lo),  "=r" (hi),
25               "=r" (lo1), "=r" (hi1)
26             : "r" (rs),  "r" (rt),
27               "r" (rs1), "r" (rt1));
28     r  = ((int64_t)hi  << 32) | (uint32_t)lo;
29     r1 = ((int64_t)hi1 << 32) | (uint32_t)lo1;
30 
31     assert(r  == 3725290219116211);
32     assert(r1 == 1621984134912629);
33 
34     return 0;
35 }
36