#include "platform.h"
-#if defined(_WIN64)
+#if defined(_WIN64) && !defined(IS_64BIT)
# include <intrin.h> // MSVC popcnt and bsfq instrinsics
# define IS_64BIT
# define USE_BSFQ
# include <nmmintrin.h> // Intel header for _mm_popcnt_u64() intrinsic
#endif
+# if !defined(NO_PREFETCH) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))
+# include <xmmintrin.h> // Intel and Microsoft header for _mm_prefetch()
+# endif
+
#if defined(_MSC_VER) || defined(__INTEL_COMPILER)
# define CACHE_LINE_ALIGNMENT __declspec(align(64))
#else
WHITE_OOO = 2,
BLACK_OO = 4,
BLACK_OOO = 8,
- ALL_CASTLES = 15
+ ALL_CASTLES = 15,
+ CASTLE_RIGHT_NB = 16
};
enum CastlingSide {
KING_SIDE,
- QUEEN_SIDE
+ QUEEN_SIDE,
+ CASTLING_SIDE_NB = 2
+};
+
+enum Phase {
+ PHASE_ENDGAME = 0,
+ PHASE_MIDGAME = 128
};
enum ScaleFactor {
VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + MAX_PLY,
VALUE_ENSURE_INTEGER_SIZE_P = INT_MAX,
- VALUE_ENSURE_INTEGER_SIZE_N = INT_MIN
+ VALUE_ENSURE_INTEGER_SIZE_N = INT_MIN,
+
+ Mg = 0, Eg = 1,
+
+ PawnValueMg = 198, PawnValueEg = 258,
+ KnightValueMg = 817, KnightValueEg = 846,
+ BishopValueMg = 836, BishopValueEg = 857,
+ RookValueMg = 1270, RookValueEg = 1278,
+ QueenValueMg = 2521, QueenValueEg = 2558
};
enum PieceType {
NO_PIECE_TYPE = 0, ALL_PIECES = 0,
- PAWN = 1, KNIGHT = 2, BISHOP = 3, ROOK = 4, QUEEN = 5, KING = 6
+ PAWN = 1, KNIGHT = 2, BISHOP = 3, ROOK = 4, QUEEN = 5, KING = 6,
+ PIECE_TYPE_NB = 8
};
enum Piece {
NO_PIECE = 16, // color_of(NO_PIECE) == NO_COLOR
W_PAWN = 1, W_KNIGHT = 2, W_BISHOP = 3, W_ROOK = 4, W_QUEEN = 5, W_KING = 6,
- B_PAWN = 9, B_KNIGHT = 10, B_BISHOP = 11, B_ROOK = 12, B_QUEEN = 13, B_KING = 14
+ B_PAWN = 9, B_KNIGHT = 10, B_BISHOP = 11, B_ROOK = 12, B_QUEEN = 13, B_KING = 14,
+ PIECE_NB = 16
};
enum Color {
- WHITE, BLACK, NO_COLOR
+ WHITE, BLACK, NO_COLOR, COLOR_NB = 2
};
enum Depth {
SQ_A8, SQ_B8, SQ_C8, SQ_D8, SQ_E8, SQ_F8, SQ_G8, SQ_H8,
SQ_NONE,
+ SQUARE_NB = 64,
+
DELTA_N = 8,
DELTA_E = 1,
DELTA_S = -8,
};
enum File {
- FILE_A, FILE_B, FILE_C, FILE_D, FILE_E, FILE_F, FILE_G, FILE_H
+ FILE_A, FILE_B, FILE_C, FILE_D, FILE_E, FILE_F, FILE_G, FILE_H, FILE_NB = 8
};
enum Rank {
- RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8
+ RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8, RANK_NB = 8
};
#undef ENABLE_OPERATORS_ON
#undef ENABLE_SAFE_OPERATORS_ON
-const Value PawnValueMidgame = Value(198);
-const Value PawnValueEndgame = Value(258);
-const Value KnightValueMidgame = Value(817);
-const Value KnightValueEndgame = Value(846);
-const Value BishopValueMidgame = Value(836);
-const Value BishopValueEndgame = Value(857);
-const Value RookValueMidgame = Value(1270);
-const Value RookValueEndgame = Value(1278);
-const Value QueenValueMidgame = Value(2521);
-const Value QueenValueEndgame = Value(2558);
-
-extern const Value PieceValueMidgame[17]; // Indexed by Piece or PieceType
-extern const Value PieceValueEndgame[17];
-extern int SquareDistance[64][64];
+namespace Zobrist {
+
+ extern Key psq[COLOR_NB][PIECE_TYPE_NB][SQUARE_NB];
+ extern Key enpassant[FILE_NB];
+ extern Key castle[CASTLE_RIGHT_NB];
+ extern Key side;
+ extern Key exclusion;
+
+ void init();
+}
+
+CACHE_LINE_ALIGNMENT
+
+extern Score pieceSquareTable[PIECE_NB][SQUARE_NB];
+extern Value PieceValue[2][18]; // [Mg / Eg][piece / pieceType]
+extern int SquareDistance[SQUARE_NB][SQUARE_NB];
struct MoveStack {
Move move;