mirror of https://gitee.com/openkylin/qemu.git
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
|
|
* Test bitops routines
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include <glib.h>
|
|
#include <stdint.h>
|
|
#include "qemu/bitops.h"
|
|
|
|
typedef struct {
|
|
uint32_t value;
|
|
int start;
|
|
int length;
|
|
int32_t result;
|
|
} S32Test;
|
|
|
|
typedef struct {
|
|
uint64_t value;
|
|
int start;
|
|
int length;
|
|
int64_t result;
|
|
} S64Test;
|
|
|
|
static const S32Test test_s32_data[] = {
|
|
{ 0x38463983, 4, 4, -8 },
|
|
{ 0x38463983, 12, 8, 0x63 },
|
|
{ 0x38463983, 0, 32, 0x38463983 },
|
|
};
|
|
|
|
static const S64Test test_s64_data[] = {
|
|
{ 0x8459826734967223ULL, 60, 4, -8 },
|
|
{ 0x8459826734967223ULL, 0, 64, 0x8459826734967223LL },
|
|
};
|
|
|
|
static void test_sextract32(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) {
|
|
const S32Test *test = &test_s32_data[i];
|
|
int32_t r = sextract32(test->value, test->start, test->length);
|
|
|
|
g_assert_cmpint(r, ==, test->result);
|
|
}
|
|
}
|
|
|
|
static void test_sextract64(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(test_s32_data); i++) {
|
|
const S32Test *test = &test_s32_data[i];
|
|
int64_t r = sextract64(test->value, test->start, test->length);
|
|
|
|
g_assert_cmpint(r, ==, test->result);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(test_s64_data); i++) {
|
|
const S64Test *test = &test_s64_data[i];
|
|
int64_t r = sextract64(test->value, test->start, test->length);
|
|
|
|
g_assert_cmpint(r, ==, test->result);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
g_test_init(&argc, &argv, NULL);
|
|
g_test_add_func("/bitops/sextract32", test_sextract32);
|
|
g_test_add_func("/bitops/sextract64", test_sextract64);
|
|
return g_test_run();
|
|
}
|