/* * 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(); }