none/tests/s390x/cvb.c

   1 #include <stdio.h>
   2
   3 static unsigned long test[] ={
   4         0x000000000000000a,
   5         0x000000000000001a,
   6         0x000000000000012a,
   7         0x000000000000123a,
   8         0x000000000001234a,
   9         0x000000000012345a,
  10         0x000000000123456a,
  11         0x000000001234567a,
  12         0x000000012345678a,
  13         0x000000123456789a,
  14         0x000001234567890a,
  15         0x000000000000000b,
  16         0x000000000000001b,
  17         0x000000000000012b,
  18         0x000000000000123b,
  19         0x000000000001234b,
  20         0x000000000012345b,
  21         0x000000000123456b,
  22         0x000000001234567b,
  23         0x000000012345678b,
  24         0x000000123456789b,
  25         0x000001234567890b,
  26         0x000000000000000c,
  27         0x000000000000001c,
  28         0x000000000000012c,
  29         0x000000000000123c,
  30         0x000000000001234c,
  31         0x000000000012345c,
  32         0x000000000123456c,
  33         0x000000001234567c,
  34         0x000000012345678c,
  35         0x000000123456789c,
  36         0x000001234567890c,
  37         0x000000000000000d,
  38         0x000000000000001d,
  39         0x000000000000012d,
  40         0x000000000000123d,
  41         0x000000000001234d,
  42         0x000000000012345d,
  43         0x000000000123456d,
  44         0x000000001234567d,
  45         0x000000012345678d,
  46         0x000000123456789d,
  47         0x000001234567890d,
  48         0x000000000000000e,
  49         0x000000000000001e,
  50         0x000000000000012e,
  51         0x000000000000123e,
  52         0x000000000001234e,
  53         0x000000000012345e,
  54         0x000000000123456e,
  55         0x000000001234567e,
  56         0x000000012345678e,
  57         0x000000123456789e,
  58         0x000001234567890e,
  59         0x000000000000000f,
  60         0x000000000000001f,
  61         0x000000000000012f,
  62         0x000000000000123f,
  63         0x000000000001234f,
  64         0x000000000012345f,
  65         0x000000000123456f,
  66         0x000000001234567f,
  67         0x000000012345678f,
  68         0x000000123456789f,
  69         0x000001234567890f,
  70         /* min and max */
  71         0x000002147483647c,
  72         0x000002147483648d,
  73
  74 /* fixs390: we also need to check if invalid values cause a fixed-point-devide exception.
  75    Not yet implemented. */
  76 /*      0x000002147483648c,
  77         0x000002147483649d,
  78         0x00000000000000fa, */
  79
  80 };
  81
  82
  83 static signed int dec_to_hex(unsigned long *addr)
  84 {
  85         register signed int res asm("2") = 0;
  86         register unsigned long *_addr asm("4") = addr;
  87
  88         asm volatile(
  89         "       cvb %0,0(0,%1)"
  90                 : "=d" (res) : "d" (_addr) : "memory");
  91         return res & 0xffffffff;
  92 }
  93
  94
  95
  96
  97 int main()
  98 {
  99         int i;
 100
 101         for (i = 0; i < sizeof(test) / sizeof(test[0]); i++)
 102         printf("%d\n", dec_to_hex(&test[i]));
 103         return 0;
 104 }