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      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 }
    105