1#include "io.h" 2 3int main(void) 4{ 5 long long rt, rs, dsp; 6 long long achi, acli; 7 long long res, resdsp; 8 9 achi = 0x87654321; 10 acli = 0x12345678; 11 rs = 0x8; 12 13 res = 0xffffffff80000000; 14 resdsp = 0x1; 15 16 __asm 17 ("mthi %2, $ac1\n\t" 18 "mtlo %3, $ac1\n\t" 19 "dextrv_rs.w %0, $ac1, %4\n\t" 20 "rddsp %1\n\t" 21 : "=r"(rt), "=r"(dsp) 22 : "r"(achi), "r"(acli), "r"(rs) 23 ); 24 dsp = (dsp >> 23) & 0x1; 25 26 if ((dsp != resdsp) || (rt != res)) { 27 printf("dextrv_rs.w error\n"); 28 return -1; 29 } 30 31 achi = 0x00; 32 acli = 0x12345678; 33 rs = 0x8; 34 35 res = 0x123456; 36 resdsp = 0x1; 37 38 __asm 39 ("mthi %2, $ac1\n\t" 40 "mtlo %3, $ac1\n\t" 41 "dextrv_rs.w %0, $ac1, %4\n\t" 42 "rddsp %1\n\t" 43 : "=r"(rt), "=r"(dsp) 44 : "r"(achi), "r"(acli), "r"(rs) 45 ); 46 dsp = (dsp >> 23) & 0x1; 47 48 if ((dsp != resdsp) || (rt != res)) { 49 printf("dextrv_rs.w error\n"); 50 return -1; 51 } 52 53 return 0; 54} 55