mirror of https://gitee.com/openkylin/qemu.git
71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
|
|
* 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();
|
|
}
|