/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2004-2020 The Stockfish developers (see AUTHORS file)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#if !defined(EVALUATE_H_INCLUDED)
+#ifndef EVALUATE_H_INCLUDED
#define EVALUATE_H_INCLUDED
-#include "misc.h"
+#include <string>
+
#include "types.h"
class Position;
namespace Eval {
-extern void init();
-extern Value evaluate(const Position& pos, Value& margin);
-extern std::string trace(const Position& pos);
+ std::string trace(const Position& pos);
+ Value evaluate(const Position& pos);
+
+ extern bool useNNUE;
+ extern std::string eval_file_loaded;
+ void init_NNUE();
+ void verify_NNUE();
-const int TableSize = 262144;
+ namespace NNUE {
-struct Entry {
- Key key;
- Value value;
- int16_t margins[2];
-};
+ Value evaluate(const Position& pos);
+ Value compute_eval(const Position& pos);
+ void update_eval(const Position& pos);
+ bool load_eval_file(const std::string& evalFile);
-struct Table : HashTable<Entry, TableSize> {};
+ } // namespace NNUE
-}
+} // namespace Eval
-#endif // !defined(EVALUATE_H_INCLUDED)
+#endif // #ifndef EVALUATE_H_INCLUDED