| #include<stdio.h> |
| #include<assert.h> |
| |
| int main() |
| { |
| int rd, rs, rt, dsp; |
| int result, resultdsp; |
| |
| rs = 0x80000000; |
| rt = 0x0ffc0000; |
| result = 0xF0040000; |
| resultdsp = 0; |
| |
| __asm |
| ("mulq_s.ph %0, %2, %3\n\t" |
| "rddsp %1\n\t" |
| : "=r"(rd), "=r"(dsp) |
| : "r"(rs), "r"(rt) |
| ); |
| dsp = (dsp >> 21) & 0x01; |
| assert(rd == result); |
| assert(dsp == resultdsp); |
| |
| rs = 0x80001234; |
| rt = 0x80004321; |
| result = 0x7FFF098B; |
| resultdsp = 1; |
| |
| __asm |
| ("mulq_s.ph %0, %2, %3\n\t" |
| "rddsp %1\n\t" |
| : "=r"(rd), "=r"(dsp) |
| : "r"(rs), "r"(rt) |
| ); |
| dsp = (dsp >> 21) & 0x01; |
| assert(rd == result); |
| assert(dsp == resultdsp); |
| |
| return 0; |
| } |