/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2009 Marco Costalba
+ Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
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 32 bits of the data field are so defined
///
/// bit 0-16: move
-/// bit 17-19: not used
-/// bit 20-22: value type
+/// bit 17-18: not used
+/// bit 19-22: value type
/// bit 23-31: generation
class TTEntry {
public:
TTEntry() {}
TTEntry(uint32_t k, Value v, ValueType t, Depth d, Move m, int generation)
- : key_ (k), data((m & 0x1FFFF) | (t << 20) | (generation << 23)),
+ : key_ (k), data((m & 0x1FFFF) | (t << 19) | (generation << 23)),
value_(int16_t(v)), depth_(int16_t(d)) {}
uint32_t key() const { return key_; }
Depth depth() const { return Depth(depth_); }
Move move() const { return Move(data & 0x1FFFF); }
Value value() const { return Value(value_); }
- ValueType type() const { return ValueType((data >> 20) & 7); }
+ ValueType type() const { return ValueType((data >> 19) & 0xF); }
int generation() const { return (data >> 23); }
private:
public:
TranspositionTable();
~TranspositionTable();
- void set_size(unsigned mbSize);
+ void set_size(size_t mbSize);
void clear();
void store(const Key posKey, Value v, ValueType type, Depth d, Move m);
TTEntry* retrieve(const Key posKey) const;
unsigned writes; // heavy SMP read/write access here
unsigned char pad_after[64];
- unsigned size;
+ size_t size;
TTCluster* entries;
uint8_t generation;
};