/// _WIN64 Building on Windows 64 bit
#if defined(_WIN64) && defined(_MSC_VER) // No Makefile used
-# include <intrin.h> // MSVC popcnt and bsfq instrinsics
+# include <intrin.h> // Microsoft header for _BitScanForward64()
# define IS_64BIT
#endif
-#if defined(USE_POPCNT) && defined(__INTEL_COMPILER) && defined(_MSC_VER)
-# include <nmmintrin.h> // Intel header for _mm_popcnt_u64() intrinsic
+#if defined(USE_POPCNT) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))
+# include <nmmintrin.h> // Intel and Microsoft header for _mm_popcnt_u64()
#endif
#if !defined(NO_PREFETCH) && (defined(__INTEL_COMPILER) || defined(_MSC_VER))
VALUE_MATE_IN_MAX_PLY = VALUE_MATE - 2 * MAX_PLY,
VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + 2 * MAX_PLY,
- PawnValueMg = 198, PawnValueEg = 258,
- KnightValueMg = 817, KnightValueEg = 896,
- BishopValueMg = 836, BishopValueEg = 907,
- RookValueMg = 1270, RookValueEg = 1356,
- QueenValueMg = 2521, QueenValueEg = 2658,
+ PawnValueMg = 188, PawnValueEg = 248,
+ KnightValueMg = 753, KnightValueEg = 832,
+ BishopValueMg = 826, BishopValueEg = 897,
+ RookValueMg = 1285, RookValueEg = 1371,
+ QueenValueMg = 2513, QueenValueEg = 2650,
- MidgameLimit = 15581, EndgameLimit = 3998
+ MidgameLimit = 15258, EndgameLimit = 3915
};
enum PieceType {
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 };
+
enum Depth {
ONE_PLY = 1,
- DEPTH_ZERO = 0,
- DEPTH_QS_CHECKS = 0,
- DEPTH_QS_NO_CHECKS = -1,
- DEPTH_QS_RECAPTURES = -5,
+ DEPTH_ZERO = 0 * ONE_PLY,
+ DEPTH_QS_CHECKS = 0 * ONE_PLY,
+ DEPTH_QS_NO_CHECKS = -1 * ONE_PLY,
+ DEPTH_QS_RECAPTURES = -5 * ONE_PLY,
- DEPTH_NONE = -6,
- DEPTH_MAX = MAX_PLY
+ DEPTH_NONE = -6 * ONE_PLY,
+ DEPTH_MAX = MAX_PLY * ONE_PLY
};
+static_assert(!(ONE_PLY & (ONE_PLY - 1)), "ONE_PLY is not a power of 2");
+
enum Square {
SQ_A1, SQ_B1, SQ_C1, SQ_D1, SQ_E1, SQ_F1, SQ_G1, SQ_H1,
SQ_A2, SQ_B2, SQ_C2, SQ_D2, SQ_E2, SQ_F2, SQ_G2, SQ_H2,
extern Value PieceValue[PHASE_NB][PIECE_NB];
inline Color operator~(Color c) {
- return Color(c ^ BLACK);
+ return Color(c ^ BLACK); // Toggle color
}
inline Square operator~(Square s) {
return Square(s ^ SQ_A8); // Vertical flip SQ_A1 -> SQ_A8
}
+inline Piece operator~(Piece pc) {
+ return Piece(pc ^ 8); // Swap color of piece B_KNIGHT -> W_KNIGHT
+}
+
inline CastlingRight operator|(Color c, CastlingSide s) {
return CastlingRight(WHITE_OO << ((s == QUEEN_SIDE) + 2 * c));
}
}
inline Piece make_piece(Color c, PieceType pt) {
- return Piece((c << 3) | pt);
+ return Piece((c << 3) + pt);
}
inline PieceType type_of(Piece pc) {