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
);