OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [newlib/] [libgloss/] [testsuite/] [libgloss.all/] [misc.c] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 39 lampret
/*
2
 * this file contains misc bug reports from WinBond.
3
 */
4
#include <stdio.h>
5
#include <math.h>
6
 
7
#if unix
8
#define pass(x) printf("PASS: %s\n", x);
9
#define fail(x) printf("FAIL: %s\n", x);
10
#endif
11
 
12
/*
13
    The compare operation is error. Because the constant value 1.0 is
14
    not correct. It seems compare with 0 in this statement.
15
 
16
HP-UX native:
17
   dist is 0.301
18
   PASS: float compare
19
   *cp = be9a1cac, *cp1 = be9a1cac
20
   PASS: float multiple 1
21
   PASS: float multiple 2
22
   32760 / (-2) = -16380
23
   PASS: float divide 1
24
   32760 / (-1) = -32760
25
   PASS: float divide 1
26
    These test only pass if the output matches:
27
    Correct output is
28
    1.0 = 1.000000E+00, 0.3010 = 3.000000E-01, -1.0 = -1.000000E+0
29
    1.0 = 1.000000E+00, 0.3010 = 3.010000E-01, -1.0 = -1.000000E+00
30
    These test only pass if the outut matches:
31
    Correct output is
32
    ans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00
33
    ans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00
34
 
35
 
36
Test run on Oki:
37
 
38
    dist is 0
39
    PASS: float compare
40
    *cp = be9a1cac, *cp1 = be9a1cac
41
    PASS: float multiple 1
42
    PASS: float multiple 2
43
    32760 / (-2) = -2147467268
44
    PASS: float divide 1
45
    32760 / (-1) = 32760
46
    PASS: float divide 1
47
    These test only pass if the output matches:
48
    Correct output is
49
    1.0 = 1.000000E+00, 0.3010 = 3.000000E-01, -1.0 = -1.000000E+0
50
    1.0 = 1.586860E-318, 0.3010 = -1.009091E-303, -1.0 = 5.290504E-315
51
    These test only pass if the outut matches:
52
    Correct output is
53
    ans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00
54
    ans = 4.940656E-324, ans1 = -5.299809E-315, ans2 = 5.290504E-315
55
 
56
 */
57
 
58
main()
59
{
60
  float dist = 0.3010;
61
 
62
  printf ("dist is %G\n", dist);
63
  if ( dist < 1.0 ) {
64
    pass ("float compare");
65
  } else {
66
    fail ("float compare");
67
  }
68
 
69
  test_1();
70
  test_2();
71
  test_3();
72
  test_4();
73
 
74
  fflush (stdout);
75
}
76
 
77
/*
78
 *    *cp = be9a1cac, *cp1 = 00000000
79
 */
80
test_1()
81
{
82
  float i, ans, ans1;
83
  unsigned int *cp=&ans, *cp1=&ans1;
84
 
85
  i = 0.3010;
86
  ans = (-1.0) * 0.3010 * 1.0;        /* OK */
87
  ans1 = (-1.0) * i * 1.0;            /* Disaster */
88
  printf ("*cp = %08x, *cp1 = %08x\n", *cp, *cp1);
89
 
90
  if (*cp != 0xbe9a1cac) {
91
    fail ("float multiple 1");
92
  } else {
93
    pass ("float multiple 1");
94
  }
95
 
96
  if (*cp1 != 0xbe9a1cac) {
97
    fail ("float multiple 2");
98
  } else {
99
    pass ("float multiple 2");
100
  }
101
}
102
 
103
/*
104
    Positive integer divide Negative integer may get interesting result.
105
    For examples:
106
    EX1: 32760 / (-2) = -2147467268
107
 */
108
test_2()
109
{
110
  int value, i, j;
111
 
112
  i = 32760;
113
  j = -2;
114
  value = i / (j);
115
  printf ("%d / (%d) = %d\n", i, j, value);
116
 
117
  if (value != -16380) {
118
    fail ("float divide 1");
119
  } else {
120
    pass ("float divide 1");
121
  }
122
}
123
 
124
/*
125
     EX2: 32760 / (-1) = 32760
126
 */
127
test_3()
128
{
129
  int value, i, j;
130
 
131
  i = 32760;
132
  j = -1;
133
  value = i / (j);
134
  printf ("%d / (%d) = %d\n", i, j, value);
135
 
136
  if (value != -32760) {
137
    fail ("float divide 1");
138
  } else {
139
    pass ("float divide 1");
140
  }
141
}
142
 
143
/*
144
    The data output format %e, %E, %g, %G in printf() can not work.
145
    Please test the following example:
146
 
147
    1.0 = 1.000000E+00, 0.3010 = 3.009999E-01, -1.0 = -1.000000E+00
148
    ans = 4.940656E-324, ans1 = -5.299809E-315, ans2 = 5.290504E-315
149
 */
150
test_4()
151
{
152
  float ans, ans1, ans2;
153
 
154
  ans = 1.0;
155
  ans1 = 0.3010;
156
  ans2 = -1.0;
157
 
158
  printf ("These test only pass if the output matches:\nCorrect output is\n1.0 = 1.000000E+00, 0.3010 = 3.000000E-01, -1.0 = -1.000000E+0\n");
159
  printf ("1.0 = %E, 0.3010 = %E, -1.0 = %E\n", 1.0, 0.3010, -1.0);
160
  printf ("These test only pass if the outut matches:\nCorrect output is\nans = 1.000000E+00, ans1 = 3.010000E-01, ans2 = -1.000000E+00\n");
161
  printf ("ans = %E, ans1 = %E, ans2 = %E\n", ans, ans1, ans2);
162
}
163
 
164
 
165
 
166
 
167
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.