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Split transposition table lookup in a separate function

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This slims down the code and is a prerequisite for
future patches.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2008-09-06 15:53:43 +02:00
parent c2c0ba875f
commit a230dc1404
3 changed files with 39 additions and 72 deletions
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16
src/tt.h
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@@ -40,12 +40,12 @@ class TTEntry {
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_;
@@ -54,7 +54,6 @@ private:
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.
@@ -67,8 +66,7 @@ public:
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();