1#include "io.h" 2 3int main(void) 4{ 5 long long rd, rs, rt; 6 long long result; 7 8 rs = 0xFFFFFFFF; 9 rt = 0x000000FF; 10 result = 0xFFFFFF00; 11 __asm 12 ("modsub %0, %1, %2\n\t" 13 : "=r"(rd) 14 : "r"(rs), "r"(rt) 15 ); 16 if (result != rd) { 17 printf("modsub wrong\n"); 18 19 return -1; 20 } 21 22 rs = 0x00000000; 23 rt = 0x00CD1FFF; 24 result = 0x0000CD1F; 25 __asm 26 ("modsub %0, %1, %2\n\t" 27 : "=r"(rd) 28 : "r"(rs), "r"(rt) 29 ); 30 if (result != rd) { 31 printf("modsub wrong\n"); 32 33 return -1; 34 } 35 36 return 0; 37} 38