| #include "io.h" |
| |
| int main(void) |
| { |
| long long rd, rs, rt, dspreg, result, dspresult; |
| rs = 0x1111111111111111; |
| rt = 0x2222222222222222; |
| result = 0x1111111111111111; |
| dspresult = 0x00; |
| |
| __asm("subu_s.qh %0, %2, %3\n\t" |
| "rddsp %1\n\t" |
| : "=r"(rd), "=r"(dspreg) |
| : "r"(rs), "r"(rt) |
| ); |
| |
| dspreg = ((dspreg >> 20) & 0x01); |
| if ((rd != result) || (dspreg != dspresult)) { |
| printf("subu_s.qh error\n\t"); |
| return -1; |
| } |
| |
| |
| rs = 0x8888888888888888; |
| rt = 0xa888a888a888a888; |
| result = 0x0000000000000000; |
| dspresult = 0x01; |
| |
| __asm("subu_s.qh %0, %2, %3\n\t" |
| "rddsp %1\n\t" |
| : "=r"(rd), "=r"(dspreg) |
| : "r"(rs), "r"(rt) |
| ); |
| |
| dspreg = ((dspreg >> 20) & 0x01); |
| if ((rd != result) || (dspreg != dspresult)) { |
| printf("subu_s.qh error\n\t"); |
| return -1; |
| } |
| |
| return 0; |
| } |