X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftt.h;h=02913efe7f66f0bd1a162de084bdbf1b54cb4a38;hp=4ca344123e5f070ec0a7c687d8cc45fbd05ddd67;hb=5a0581498cde3d0904924d8ef7ed25ea1a2c855a;hpb=c2c0ba875f429e497c936b61be9f75dcc88385a9 diff --git a/src/tt.h b/src/tt.h index 4ca34412..02913efe 100644 --- a/src/tt.h +++ b/src/tt.h @@ -1,13 +1,14 @@ /* - 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. @@ -40,12 +41,12 @@ 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) & 7); } + int generation() const { return (data >> 23); } private: Key key_; @@ -54,7 +55,6 @@ 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. @@ -67,14 +67,13 @@ 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; + 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;