1*3303f017SFredrik Noring /*
2*3303f017SFredrik Noring * Test R5900-specific MFLO1 and MFHI1.
3*3303f017SFredrik Noring */
4*3303f017SFredrik Noring
5*3303f017SFredrik Noring #include <stdio.h>
6*3303f017SFredrik Noring #include <inttypes.h>
7*3303f017SFredrik Noring #include <assert.h>
8*3303f017SFredrik Noring
main()9*3303f017SFredrik Noring int main()
10*3303f017SFredrik Noring {
11*3303f017SFredrik Noring int32_t rs = 12207031, rt = 305175781;
12*3303f017SFredrik Noring int32_t rs1 = 32452867, rt1 = 49979687;
13*3303f017SFredrik Noring int64_t lo, hi, lo1, hi1;
14*3303f017SFredrik Noring int64_t r, r1;
15*3303f017SFredrik Noring
16*3303f017SFredrik Noring /* Test both LO/HI and LO1/HI1 to verify separation. */
17*3303f017SFredrik Noring __asm__ __volatile__ (
18*3303f017SFredrik Noring " mult $0, %4, %5\n"
19*3303f017SFredrik Noring " mult1 $0, %6, %7\n"
20*3303f017SFredrik Noring " mflo %0\n"
21*3303f017SFredrik Noring " mfhi %1\n"
22*3303f017SFredrik Noring " mflo1 %2\n"
23*3303f017SFredrik Noring " mfhi1 %3\n"
24*3303f017SFredrik Noring : "=r" (lo), "=r" (hi),
25*3303f017SFredrik Noring "=r" (lo1), "=r" (hi1)
26*3303f017SFredrik Noring : "r" (rs), "r" (rt),
27*3303f017SFredrik Noring "r" (rs1), "r" (rt1));
28*3303f017SFredrik Noring r = ((int64_t)hi << 32) | (uint32_t)lo;
29*3303f017SFredrik Noring r1 = ((int64_t)hi1 << 32) | (uint32_t)lo1;
30*3303f017SFredrik Noring
31*3303f017SFredrik Noring assert(r == 3725290219116211);
32*3303f017SFredrik Noring assert(r1 == 1621984134912629);
33*3303f017SFredrik Noring
34*3303f017SFredrik Noring return 0;
35*3303f017SFredrik Noring }
36