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DroidFish: Updated stockfish to the latest development version and included syzygy tablebases probing code.

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This commit is contained in:
Peter Osterlund
2014-10-12 12:38:00 +00:00
parent e621fb77bd
commit 8c99b770dd
35 changed files with 3197 additions and 1312 deletions
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13
DroidFish/jni/stockfish/bitboard.cpp
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@@ -149,7 +149,10 @@ const std::string Bitboards::pretty(Bitboard b) {
void Bitboards::init() {
for (Square s = SQ_A1; s <= SQ_H8; ++s)
BSFTable[bsf_index(SquareBB[s] = 1ULL << s)] = s;
{
SquareBB[s] = 1ULL << s;
BSFTable[bsf_index(SquareBB[s])] = s;
}
for (Bitboard b = 1; b < 256; ++b)
MS1BTable[b] = more_than_one(b) ? MS1BTable[b - 1] : lsb(b);
@@ -251,9 +254,8 @@ namespace {
void init_magics(Bitboard table[], Bitboard* attacks[], Bitboard magics[],
Bitboard masks[], unsigned shifts[], Square deltas[], Fn index) {
int MagicBoosters[][8] = { { 969, 1976, 2850, 542, 2069, 2852, 1708, 164 },
{ 3101, 552, 3555, 926, 834, 26, 2131, 1117 } };
int MagicBoosters[][RANK_NB] = { { 969, 1976, 2850, 542, 2069, 2852, 1708, 164 },
{ 3101, 552, 3555, 926, 834, 26, 2131, 1117 } };
RKISS rk;
Bitboard occupancy[4096], reference[4096], edges, b;
int i, size, booster;
@@ -301,7 +303,8 @@ namespace {
// Find a magic for square 's' picking up an (almost) random number
// until we find the one that passes the verification test.
do {
do magics[s] = rk.magic_rand<Bitboard>(booster);
do
magics[s] = rk.magic_rand<Bitboard>(booster);
while (popcount<Max15>((magics[s] * masks[s]) >> 56) < 6);
std::memset(attacks[s], 0, size * sizeof(Bitboard));