tests/tcg/openrisc/test_div.c

   1 #include <stdio.h>
   2
   3 int main(void)
   4 {
   5     int a, b, c;
   6     int result;
   7
   8     b = 0x120;
   9     c = 0x4;
  10     result = 0x48;
  11     __asm
  12     ("l.div  %0, %1, %2\n\t"
  13      : "=r"(a)
  14      : "r"(b), "r"(c)
  15     );
  16     if (a != result) {
  17         printf("div error\n");
  18         return -1;
  19     }
  20
  21     result = 0x4;
  22     __asm
  23     ("l.div %0, %1, %0\n\t"
  24      : "+r"(a)
  25      : "r"(b)
  26     );
  27     if (a != result) {
  28         printf("div error\n");
  29         return -1;
  30     }
  31
  32     b = 0xffffffff;
  33     c = 0x80000000;
  34     result = 0;
  35     __asm
  36     ("l.div %0, %1, %2\n\t"
  37      : "=r"(a)
  38      : "r"(b), "r"(c)
  39     );
  40     if (a != result) {
  41         printf("div error\n");
  42         return -1;
  43     }
  44
  45     b = 0x80000000;
  46     c = 0xffffffff;
  47     __asm
  48     ("l.div %0, %1, %2\n\t"
  49      : "=r"(a)
  50      : "r"(b), "r"(c)
  51     );
  52
  53     return 0;
  54 }