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 = 0xffffffffffff8000; 14 resdsp = 0x1; 15 16 __asm 17 ("mthi %2, $ac1\n\t" 18 "mtlo %3, $ac1\n\t" 19 "dextrv_s.h %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_s.h error\n"); 28 return -1; 29 } 30 31 return 0; 32} 33