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/*
* 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 "qemu/osdep.h"
#include "qemu/host-utils.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();
}
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