/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2004-2023 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/>.
*/
-// To profile with callgrind uncomment following line
-//#define USE_CALLGRIND
-
-#include <cstdio>
#include <iostream>
-#include <string>
#include "bitboard.h"
-#include "evaluate.h"
+#include "endgame.h"
#include "position.h"
+#include "psqt.h"
+#include "search.h"
+#include "syzygy/tbprobe.h"
#include "thread.h"
-#include "ucioption.h"
-
-#ifdef USE_CALLGRIND
-#include <valgrind/callgrind.h>
-#endif
-
-using namespace std;
+#include "tt.h"
+#include "uci.h"
-extern bool execute_uci_command(const string& cmd);
-extern void benchmark(int argc, char* argv[]);
-extern void init_kpk_bitbase();
+using namespace Stockfish;
int main(int argc, char* argv[]) {
- // Disable IO buffering for C and C++ standard libraries
- setvbuf(stdin, NULL, _IONBF, 0);
- setvbuf(stdout, NULL, _IONBF, 0);
- cout.rdbuf()->pubsetbuf(NULL, 0);
- cin.rdbuf()->pubsetbuf(NULL, 0);
-
- // Startup initializations
- init_bitboards();
- init_uci_options();
- Position::init_zobrist();
- Position::init_piece_square_tables();
- init_eval(1);
- init_kpk_bitbase();
- init_threads();
-
-#ifdef USE_CALLGRIND
- CALLGRIND_START_INSTRUMENTATION;
-#endif
-
- if (argc < 2)
- {
- // Print copyright notice
- cout << engine_name() << " by " << engine_author() << endl;
+ std::cout << engine_info() << std::endl;
- if (CpuHasPOPCNT)
- cout << "Good! CPU has hardware POPCNT." << endl;
+ CommandLine::init(argc, argv);
+ UCI::init(Options);
+ Tune::init();
+ PSQT::init();
+ Bitboards::init();
+ Position::init();
+ Bitbases::init();
+ Endgames::init();
+ Threads.set(size_t(Options["Threads"]));
+ Search::clear(); // After threads are up
+ Eval::NNUE::init();
- // Wait for a command from the user, and passes this command to
- // execute_uci_command() and also intercepts EOF from stdin to
- // ensure that we exit gracefully if the GUI dies unexpectedly.
- string cmd;
- while (getline(cin, cmd) && execute_uci_command(cmd)) {}
- }
- else if (string(argv[1]) == "bench" && argc < 8)
- benchmark(argc, argv);
- else
- cout << "Usage: stockfish bench [hash size = 128] [threads = 1] "
- << "[limit = 12] [fen positions file = default] "
- << "[depth, time, perft or node limited = depth]" << endl;
+ UCI::loop(argc, argv);
- exit_threads();
- quit_eval();
+ Threads.set(0);
return 0;
}