X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftypes.h;h=d725c1367bf66504b41d79ec014688668502d96f;hp=7ebe3f61f8580b0b241a9c0580b8f83768a57fc0;hb=4840643fedbfc33d118cdc13c8435b062e3da99b;hpb=64d29a633066e39b62af5ee0bbf32645994744ec diff --git a/src/types.h b/src/types.h index 7ebe3f61..d725c136 100644 --- a/src/types.h +++ b/src/types.h @@ -54,16 +54,17 @@ # include // Intel header for _mm_popcnt_u64() intrinsic #endif +#if defined(USE_PEXT) +# include // Header for _pext_u64() intrinsic +#else +# define _pext_u64(b, m) (0) +#endif + # if !defined(NO_PREFETCH) && (defined(__INTEL_COMPILER) || defined(_MSC_VER)) # include // Intel and Microsoft header for _mm_prefetch() # endif #define CACHE_LINE_SIZE 64 -#if defined(_MSC_VER) || defined(__INTEL_COMPILER) -# define CACHE_LINE_ALIGNMENT __declspec(align(CACHE_LINE_SIZE)) -#else -# define CACHE_LINE_ALIGNMENT __attribute__ ((aligned(CACHE_LINE_SIZE))) -#endif #ifdef _MSC_VER # define FORCE_INLINE __forceinline @@ -79,6 +80,12 @@ const bool HasPopCnt = true; const bool HasPopCnt = false; #endif +#ifdef USE_PEXT +const bool HasPext = true; +#else +const bool HasPext = false; +#endif + #ifdef IS_64BIT const bool Is64Bit = true; #else @@ -88,9 +95,8 @@ const bool Is64Bit = false; typedef uint64_t Key; typedef uint64_t Bitboard; -const int MAX_MOVES = 256; -const int MAX_PLY = 120; -const int MAX_PLY_PLUS_6 = MAX_PLY + 6; +const int MAX_MOVES = 256; +const int MAX_PLY = 128; /// A move needs 16 bits to be stored /// @@ -124,7 +130,7 @@ enum CastlingSide { KING_SIDE, QUEEN_SIDE, CASTLING_SIDE_NB = 2 }; -enum CastlingRight { // Defined as in PolyGlot book hash key +enum CastlingRight { NO_CASTLING, WHITE_OO, WHITE_OOO = WHITE_OO << 1, @@ -179,7 +185,9 @@ enum Value { KnightValueMg = 817, KnightValueEg = 846, BishopValueMg = 836, BishopValueEg = 857, RookValueMg = 1270, RookValueEg = 1278, - QueenValueMg = 2521, QueenValueEg = 2558 + QueenValueMg = 2521, QueenValueEg = 2558, + + MidgameLimit = 15581, EndgameLimit = 3998 }; enum PieceType { @@ -197,14 +205,15 @@ enum Piece { enum Depth { - ONE_PLY = 2, + ONE_PLY = 1, - 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_ZERO = 0, + DEPTH_QS_CHECKS = 0, + DEPTH_QS_NO_CHECKS = -1, + DEPTH_QS_RECAPTURES = -5, - DEPTH_NONE = -127 * ONE_PLY + DEPTH_NONE = -6, + DEPTH_MAX = MAX_PLY }; enum Square { @@ -258,24 +267,15 @@ inline Score make_score(int mg, int eg) { return Score((mg << 16) + eg); } /// Extracting the signed lower and upper 16 bits is not so trivial because /// according to the standard a simple cast to short is implementation defined /// and so is a right shift of a signed integer. -inline Value mg_value(Score s) { return Value(((s + 0x8000) & ~0xffff) / 0x10000); } - -/// On Intel 64 bit we have a small speed regression with the standard conforming -/// version. Therefore, in this case we use faster code that, although not 100% -/// standard compliant, seems to work for Intel and MSVC. -#if defined(IS_64BIT) && (!defined(__GNUC__) || defined(__INTEL_COMPILER)) - -inline Value eg_value(Score s) { return Value(int16_t(s & 0xFFFF)); } - -#else +inline Value mg_value(Score s) { + return Value(((s + 0x8000) & ~0xffff) / 0x10000); +} inline Value eg_value(Score s) { return Value((int)(unsigned(s) & 0x7FFFU) - (int)(unsigned(s) & 0x8000U)); } -#endif - -#define ENABLE_SAFE_OPERATORS_ON(T) \ +#define ENABLE_BASE_OPERATORS_ON(T) \ inline T operator+(const T d1, const T d2) { return T(int(d1) + int(d2)); } \ inline T operator-(const T d1, const T d2) { return T(int(d1) - int(d2)); } \ inline T operator*(int i, const T d) { return T(i * int(d)); } \ @@ -285,26 +285,32 @@ inline T& operator+=(T& d1, const T d2) { return d1 = d1 + d2; } \ inline T& operator-=(T& d1, const T d2) { return d1 = d1 - d2; } \ inline T& operator*=(T& d, int i) { return d = T(int(d) * i); } -#define ENABLE_OPERATORS_ON(T) ENABLE_SAFE_OPERATORS_ON(T) \ +ENABLE_BASE_OPERATORS_ON(Score) + +#define ENABLE_FULL_OPERATORS_ON(T) \ +ENABLE_BASE_OPERATORS_ON(T) \ inline T& operator++(T& d) { return d = T(int(d) + 1); } \ inline T& operator--(T& d) { return d = T(int(d) - 1); } \ inline T operator/(const T d, int i) { return T(int(d) / i); } \ inline T& operator/=(T& d, int i) { return d = T(int(d) / i); } -ENABLE_OPERATORS_ON(Value) -ENABLE_OPERATORS_ON(PieceType) -ENABLE_OPERATORS_ON(Piece) -ENABLE_OPERATORS_ON(Color) -ENABLE_OPERATORS_ON(Depth) -ENABLE_OPERATORS_ON(Square) -ENABLE_OPERATORS_ON(File) -ENABLE_OPERATORS_ON(Rank) +ENABLE_FULL_OPERATORS_ON(Value) +ENABLE_FULL_OPERATORS_ON(PieceType) +ENABLE_FULL_OPERATORS_ON(Piece) +ENABLE_FULL_OPERATORS_ON(Color) +ENABLE_FULL_OPERATORS_ON(Depth) +ENABLE_FULL_OPERATORS_ON(Square) +ENABLE_FULL_OPERATORS_ON(File) +ENABLE_FULL_OPERATORS_ON(Rank) + +#undef ENABLE_FULL_OPERATORS_ON +#undef ENABLE_BASE_OPERATORS_ON /// Additional operators to add integers to a Value inline Value operator+(Value v, int i) { return Value(int(v) + i); } inline Value operator-(Value v, int i) { return Value(int(v) - i); } - -ENABLE_SAFE_OPERATORS_ON(Score) +inline Value& operator+=(Value& v, int i) { return v = v + i; } +inline Value& operator-=(Value& v, int i) { return v = v - i; } /// Only declared but not defined. We don't want to multiply two scores due to /// a very high risk of overflow. So user should explicitly convert to integer. @@ -315,9 +321,6 @@ inline Score operator/(Score s, int i) { return make_score(mg_value(s) / i, eg_value(s) / i); } -#undef ENABLE_OPERATORS_ON -#undef ENABLE_SAFE_OPERATORS_ON - extern Value PieceValue[PHASE_NB][PIECE_NB]; struct ExtMove { @@ -395,14 +398,6 @@ inline bool opposite_colors(Square s1, Square s2) { return ((s >> 3) ^ s) & 1; } -inline char to_char(File f, bool tolower = true) { - return char(f - FILE_A + (tolower ? 'a' : 'A')); -} - -inline char to_char(Rank r) { - return char(r - RANK_1 + '1'); -} - inline Square pawn_push(Color c) { return c == WHITE ? DELTA_N : DELTA_S; } @@ -433,14 +428,7 @@ inline Move make(Square from, Square to, PieceType pt = KNIGHT) { } inline bool is_ok(Move m) { - return from_sq(m) != to_sq(m); // Catches also MOVE_NULL and MOVE_NONE -} - -#include - -inline const std::string to_string(Square s) { - char ch[] = { to_char(file_of(s)), to_char(rank_of(s)), 0 }; - return ch; + return from_sq(m) != to_sq(m); // Catch also MOVE_NULL and MOVE_NONE } #endif // #ifndef TYPES_H_INCLUDED