tests/tcg/openrisc/test_addc.c

   1 #include <stdio.h>
   2
   3 int main(void)
   4 {
   5     int a, b, c;
   6     int result;
   7
   8     b = 0x01;
   9     c = 0xffffffff;
  10     result = 1;
  11     __asm
  12     ("l.addc   %0, %1, %2\n\t"
  13      : "=r"(a)
  14      : "r"(b), "r"(c)
  15     );
  16     if (a != result) {
  17         printf("first addc error\n");
  18         return -1;
  19     }
  20
  21     b = 0x01;
  22     c = 0xffffffff;
  23     result = 0x80000001;
  24     __asm
  25     ("l.addc   %0, %1, %2\n\t"
  26      "l.movhi  %2, 0x7fff\n\t"
  27      "l.ori    %2, %2, 0xffff\n\t"
  28      "l.addc   %0, %1, %2\n\t"
  29      : "=r"(a)
  30      : "r"(b), "r"(c)
  31     );
  32     if (a != result) {
  33         printf("addc error\n");
  34         return -1;
  35     }
  36
  37     return 0;
  38 }