none/tests/s390x/cvd.c

   1 #include <stdio.h>
   2
   3 static signed int test[] ={
   4         0,
   5         1,
   6         -1,
   7         0x7fffffff,
   8         0x80000000,
   9         0x12345678,
  10         0x87654321,
  11         0x55555555,
  12         0x11111111,
  13         0xaaaaaaaa,
  14 };
  15
  16
  17 static unsigned long hex_to_dec(signed int num)
  18 {
  19         unsigned long dec;
  20         asm ("cvd %1,%0" : "=S" (dec) : "d" (num) : );
  21         return dec;
  22 }
  23
  24 int main()
  25 {
  26         int i;
  27
  28         for (i = 0; i < sizeof(test) / sizeof(test[0]); i++)
  29                 printf("%lx\n", hex_to_dec(test[i]));
  30         return 0;
  31 }