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
dec_to_hex(unsigned long * addr)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
main()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