Archipelago » qemu

/*

 * 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[] = {

    { 0x8459826734967223, 60, 4, -8 },

    { 0x8459826734967223, 0, 64, 0x8459826734967223 },

};

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();

}