| /* |
| * Test 64x64 -> 128 multiply subroutines |
| * |
| * 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/host-utils.h" |
| #include "qemu/osdep.h" |
| |
| |
| typedef struct { |
| uint64_t a, b; |
| uint64_t rh, rl; |
| } Test; |
| |
| static const Test test_u_data[] = { |
| { 1, 1, 0, 1 }, |
| { 10000, 10000, 0, 100000000 }, |
| { 0xffffffffffffffffULL, 2, 1, 0xfffffffffffffffeULL }, |
| { 0xffffffffffffffffULL, 0xffffffffffffffffULL, |
| 0xfffffffffffffffeULL, 0x0000000000000001ULL }, |
| { 0x1122334455667788ull, 0x8877665544332211ull, |
| 0x092228fb777ae38full, 0x0a3e963337c60008ull }, |
| }; |
| |
| static const Test test_s_data[] = { |
| { 1, 1, 0, 1 }, |
| { 1, -1, -1, -1 }, |
| { -10, -10, 0, 100 }, |
| { 10000, 10000, 0, 100000000 }, |
| { -1, 2, -1, -2 }, |
| { 0x1122334455667788ULL, 0x1122334455667788ULL, |
| 0x01258f60bbc2975cULL, 0x1eace4a3c82fb840ULL }, |
| }; |
| |
| static void test_u(void) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(test_u_data); ++i) { |
| uint64_t rl, rh; |
| mulu64(&rl, &rh, test_u_data[i].a, test_u_data[i].b); |
| g_assert_cmpuint(rl, ==, test_u_data[i].rl); |
| g_assert_cmpuint(rh, ==, test_u_data[i].rh); |
| } |
| } |
| |
| static void test_s(void) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(test_s_data); ++i) { |
| uint64_t rl, rh; |
| muls64(&rl, &rh, test_s_data[i].a, test_s_data[i].b); |
| g_assert_cmpuint(rl, ==, test_s_data[i].rl); |
| g_assert_cmpint(rh, ==, test_s_data[i].rh); |
| } |
| } |
| |
| int main(int argc, char **argv) |
| { |
| g_test_init(&argc, &argv, NULL); |
| g_test_add_func("/host-utils/mulu64", test_u); |
| g_test_add_func("/host-utils/muls64", test_s); |
| return g_test_run(); |
| } |