/*
- Glaurung, a UCI chess playing engine.
- Copyright (C) 2004-2008 Tord Romstad
+ Stockfish, a UCI chess playing engine derived from Glaurung 2.1
+ Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
+ Copyright (C) 2008 Marco Costalba
- Glaurung is free software: you can redistribute it and/or modify
+ Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
- Glaurung is distributed in the hope that it will be useful,
+ Stockfish is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
public:
TTEntry();
TTEntry(Key k, Value v, ValueType t, Depth d, Move m, int generation);
- Key key() const;
- Depth depth() const;
- Move move() const;
- Value value() const;
- ValueType type() const;
- int generation() const;
+ Key key() const { return key_; }
+ Depth depth() const { return Depth(depth_); }
+ Move move() const { return Move(data & 0x7FFFF); }
+ Value value() const { return Value(value_); }
+ ValueType type() const { return ValueType((data >> 20) & 3); }
+ int generation() const { return (data >> 23); }
private:
Key key_;
int16_t depth_;
};
-
/// The transposition table class. This is basically just a huge array
/// containing TTEntry objects, and a few methods for writing new entries
/// and reading new ones.
void set_size(unsigned mbSize);
void clear();
void store(const Position &pos, Value v, Depth d, Move m, ValueType type);
- bool retrieve(const Position &pos, Value *value, Depth *d, Move *move,
- ValueType *type) const;
+ const TTEntry* retrieve(const Position &pos) const;
void new_search();
void insert_pv(const Position &pos, Move pv[]);
int full();
private:
- TTEntry* first_entry(const Position &pos) const;
+ inline TTEntry* first_entry(const Position &pos) const;
unsigned size;
int writes;