2 * Test 64x64 -> 128 multiply subroutines
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.
9 #include "qemu/osdep.h"
10 #include "qemu/host-utils.h"
18 static const Test test_u_data[] = {
20 { 10000, 10000, 0, 100000000 },
21 { 0xffffffffffffffffULL, 2, 1, 0xfffffffffffffffeULL },
22 { 0xffffffffffffffffULL, 0xffffffffffffffffULL,
23 0xfffffffffffffffeULL, 0x0000000000000001ULL },
24 { 0x1122334455667788ull, 0x8877665544332211ull,
25 0x092228fb777ae38full, 0x0a3e963337c60008ull },
28 static const Test test_s_data[] = {
32 { 10000, 10000, 0, 100000000 },
34 { 0x1122334455667788ULL, 0x1122334455667788ULL,
35 0x01258f60bbc2975cULL, 0x1eace4a3c82fb840ULL },
38 static void test_u(void)
42 for (i = 0; i < ARRAY_SIZE(test_u_data); ++i) {
44 mulu64(&rl, &rh, test_u_data[i].a, test_u_data[i].b);
45 g_assert_cmpuint(rl, ==, test_u_data[i].rl);
46 g_assert_cmpuint(rh, ==, test_u_data[i].rh);
50 static void test_s(void)
54 for (i = 0; i < ARRAY_SIZE(test_s_data); ++i) {
56 muls64(&rl, &rh, test_s_data[i].a, test_s_data[i].b);
57 g_assert_cmpuint(rl, ==, test_s_data[i].rl);
58 g_assert_cmpint(rh, ==, test_s_data[i].rh);
62 int main(int argc, char **argv)
64 g_test_init(&argc, &argv, NULL);
65 g_test_add_func("/host-utils/mulu64", test_u);
66 g_test_add_func("/host-utils/muls64", test_s);