]>
Commit | Line | Data |
---|---|---|
3464700f PM |
1 | /* |
2 | * Test bitops routines | |
3 | * | |
4 | * This work is licensed under the terms of the GNU LGPL, version 2 or later. | |
5 | * See the COPYING.LIB file in the top-level directory. | |
6 | * | |
7 | */ | |
8 | ||
a5ebc0eb | 9 | #include "qemu/osdep.h" |
3464700f PM |
10 | #include "qemu/bitops.h" |
11 | ||
12 | typedef struct { | |
13 | uint32_t value; | |
14 | int start; | |
15 | int length; | |
16 | int32_t result; | |
17 | } S32Test; | |
18 | ||
19 | typedef struct { | |
20 | uint64_t value; | |
21 | int start; | |
22 | int length; | |
23 | int64_t result; | |
24 | } S64Test; | |
25 | ||
26 | static const S32Test test_s32_data[] = { | |
27 | { 0x38463983, 4, 4, -8 }, | |
28 | { 0x38463983, 12, 8, 0x63 }, | |
29 | { 0x38463983, 0, 32, 0x38463983 }, | |
30 | }; | |
31 | ||
32 | static const S64Test test_s64_data[] = { | |
5cb6be2c SH |
33 | { 0x8459826734967223ULL, 60, 4, -8 }, |
34 | { 0x8459826734967223ULL, 0, 64, 0x8459826734967223LL }, | |
3464700f PM |
35 | }; |
36 | ||
37 | static void test_sextract32(void) | |
38 | { | |
39 | int i; | |
40 | ||
41 | for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) { | |
42 | const S32Test *test = &test_s32_data[i]; | |
43 | int32_t r = sextract32(test->value, test->start, test->length); | |
44 | ||
45 | g_assert_cmpint(r, ==, test->result); | |
46 | } | |
47 | } | |
48 | ||
49 | static void test_sextract64(void) | |
50 | { | |
51 | int i; | |
52 | ||
53 | for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) { | |
54 | const S32Test *test = &test_s32_data[i]; | |
55 | int64_t r = sextract64(test->value, test->start, test->length); | |
56 | ||
57 | g_assert_cmpint(r, ==, test->result); | |
58 | } | |
59 | ||
60 | for (i = 0; i < ARRAY_SIZE(test_s64_data); i++) { | |
61 | const S64Test *test = &test_s64_data[i]; | |
62 | int64_t r = sextract64(test->value, test->start, test->length); | |
63 | ||
64 | g_assert_cmpint(r, ==, test->result); | |
65 | } | |
66 | } | |
67 | ||
68 | int main(int argc, char **argv) | |
69 | { | |
70 | g_test_init(&argc, &argv, NULL); | |
71 | g_test_add_func("/bitops/sextract32", test_sextract32); | |
72 | g_test_add_func("/bitops/sextract64", test_sextract64); | |
73 | return g_test_run(); | |
74 | } |