1#include "io.h" 2 3int main(void) 4{ 5 long long rt, dsp, rs; 6 long long achi, acli; 7 long long res, resdsp; 8 9 achi = 0x87654321; 10 acli = 0x12345678; 11 rs = 0x8; 12 13 res = 0x2100000000123456; 14 resdsp = 0x01; 15 16 __asm 17 ("mthi %2, $ac1\n\t" 18 "mtlo %3, $ac1\n\t" 19 "dextrv_r.l %0, $ac1, %4\n\t" 20 "rddsp %1\n\t" 21 : "=r"(rt), "=r"(dsp) 22 : "r"(achi), "r"(acli), "r"(rs) 23 ); 24 25 dsp = (dsp >> 23) & 0x1; 26 27 if ((dsp != resdsp) || (rt != res)) { 28 printf("dextrv_r.l error\n"); 29 return -1; 30 } 31 32 achi = 0x87654321; 33 acli = 0x12345678; 34 rs = 0x0; 35 36 res = 0x12345678; 37 resdsp = 0x01; 38 39 __asm 40 ("mthi %2, $ac1\n\t" 41 "mtlo %3, $ac1\n\t" 42 "dextrv_r.l %0, $ac1, %4\n\t" 43 "rddsp %1\n\t" 44 : "=r"(rt), "=r"(dsp) 45 : "r"(achi), "r"(acli), "r"(rs) 46 ); 47 48 dsp = (dsp >> 23) & 0x1; 49 50 if ((dsp != resdsp) || (rt != res)) { 51 printf("dextrv_r.l error\n"); 52 return -1; 53 } 54 55 return 0; 56} 57