cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

test-mul64.c (1738B)

      1/*
      2 * Test 64x64 -> 128 multiply subroutines
      3 *
      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.
      6 *
      7 */
      8
      9#include "qemu/osdep.h"
     10#include "qemu/host-utils.h"
     11
     12
     13typedef struct {
     14    uint64_t a, b;
     15    uint64_t rh, rl;
     16} Test;
     17
     18static const Test test_u_data[] = {
     19    { 1, 1, 0, 1 },
     20    { 10000, 10000, 0, 100000000 },
     21    { 0xffffffffffffffffULL, 2, 1, 0xfffffffffffffffeULL },
     22    { 0xffffffffffffffffULL, 0xffffffffffffffffULL,
     23      0xfffffffffffffffeULL, 0x0000000000000001ULL },
     24    { 0x1122334455667788ull, 0x8877665544332211ull,
     25      0x092228fb777ae38full, 0x0a3e963337c60008ull },
     26};
     27
     28static const Test test_s_data[] = {
     29    { 1, 1, 0, 1 },
     30    { 1, -1, -1, -1 },
     31    { -10, -10, 0, 100 },
     32    { 10000, 10000, 0, 100000000 },
     33    { -1, 2, -1, -2 },
     34    { 0x1122334455667788ULL, 0x1122334455667788ULL,
     35      0x01258f60bbc2975cULL, 0x1eace4a3c82fb840ULL },
     36};
     37
     38static void test_u(void)
     39{
     40    int i;
     41
     42    for (i = 0; i < ARRAY_SIZE(test_u_data); ++i) {
     43        uint64_t rl, rh;
     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);
     47    }
     48}
     49
     50static void test_s(void)
     51{
     52    int i;
     53
     54    for (i = 0; i < ARRAY_SIZE(test_s_data); ++i) {
     55        uint64_t rl, rh;
     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);
     59    }
     60}
     61
     62int main(int argc, char **argv)
     63{
     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);
     67    return g_test_run();
     68}