# include <immintrin.h> // Header for _pext_u64() intrinsic
# define pext(b, m) _pext_u64(b, m)
#else
-# define pext(b, m) (0)
+# define pext(b, m) 0
#endif
#ifdef USE_POPCNT
VALUE_MATE_IN_MAX_PLY = VALUE_MATE - 2 * MAX_PLY,
VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + 2 * MAX_PLY,
- PawnValueMg = 188, PawnValueEg = 248,
- KnightValueMg = 753, KnightValueEg = 832,
- BishopValueMg = 826, BishopValueEg = 897,
- RookValueMg = 1285, RookValueEg = 1371,
- QueenValueMg = 2513, QueenValueEg = 2650,
+ PawnValueMg = 171, PawnValueEg = 240,
+ KnightValueMg = 764, KnightValueEg = 848,
+ BishopValueMg = 826, BishopValueEg = 891,
+ RookValueMg = 1282, RookValueEg = 1373,
+ QueenValueMg = 2526, QueenValueEg = 2646,
MidgameLimit = 15258, EndgameLimit = 3915
};
PIECE_NB = 16
};
-const Piece Pieces[] = { W_PAWN, W_KNIGHT, W_BISHOP, W_ROOK, W_QUEEN, W_KING,
- B_PAWN, B_KNIGHT, B_BISHOP, B_ROOK, B_QUEEN, B_KING };
extern Value PieceValue[PHASE_NB][PIECE_NB];
enum Depth : int {
NORTH = 8,
EAST = 1,
- SOUTH = -8,
- WEST = -1,
+ SOUTH = -NORTH,
+ WEST = -EAST,
NORTH_EAST = NORTH + EAST,
SOUTH_EAST = SOUTH + EAST,
/// Multiplication of a Score by an integer. We check for overflow in debug mode.
inline Score operator*(Score s, int i) {
+
Score result = Score(int(s) * i);
assert(eg_value(result) == (i * eg_value(s)));
return Square(m & 0x3F);
}
+inline int from_to(Move m) {
+ return m & 0xFFF;
+}
+
inline MoveType type_of(Move m) {
return MoveType(m & (3 << 14));
}