test_sub.c (490B)
1 #include <stdio.h> 2 3 int main(void) 4 { 5 int a, b; 6 int result; 7 8 a = 0x100; 9 b = 0x100; 10 result = 0x0; 11 __asm 12 ("l.sub %0, %0, %1\n\t" 13 : "+r"(a) 14 : "r"(b) 15 ); 16 if (a != result) { 17 printf("sub error\n"); 18 return -1; 19 } 20 21 a = 0xffff; 22 b = 0x1; 23 result = 0xfffe; 24 __asm 25 ("l.sub %0, %0, %1\n\t" 26 : "+r"(a) 27 : "r"(b) 28 ); 29 if (a != result) { 30 printf("sub error\n"); 31 return -1; 32 } 33 34 return 0; 35 }