/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
- Copyright (C) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, 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
const std::string compiler_info();
void prefetch(void* addr);
void start_logger(const std::string& fname);
+void* std_aligned_alloc(size_t alignment, size_t size);
+void std_aligned_free(void* ptr);
void* aligned_ttmem_alloc(size_t size, void*& mem);
void aligned_ttmem_free(void* mem); // nop if mem == nullptr
void dbg_print();
typedef std::chrono::milliseconds::rep TimePoint; // A value in milliseconds
-
static_assert(sizeof(TimePoint) == sizeof(int64_t), "TimePoint should be 64 bits");
-
inline TimePoint now() {
return std::chrono::duration_cast<std::chrono::milliseconds>
(std::chrono::steady_clock::now().time_since_epoch()).count();
#define sync_cout std::cout << IO_LOCK
#define sync_endl std::endl << IO_UNLOCK
-namespace Utility {
-
-/// Clamp a value between lo and hi. Available in c++17.
-template<class T> constexpr const T& clamp(const T& v, const T& lo, const T& hi) {
- return v < lo ? lo : v > hi ? hi : v;
-}
-
-}
/// xorshift64star Pseudo-Random Number Generator
/// This class is based on original code written and dedicated
{ return T(rand64() & rand64() & rand64()); }
};
+inline uint64_t mul_hi64(uint64_t a, uint64_t b) {
+#if defined(__GNUC__) && defined(IS_64BIT)
+ __extension__ typedef unsigned __int128 uint128;
+ return ((uint128)a * (uint128)b) >> 64;
+#else
+ uint64_t aL = (uint32_t)a, aH = a >> 32;
+ uint64_t bL = (uint32_t)b, bH = b >> 32;
+ uint64_t c1 = (aL * bL) >> 32;
+ uint64_t c2 = aH * bL + c1;
+ uint64_t c3 = aL * bH + (uint32_t)c2;
+ return aH * bH + (c2 >> 32) + (c3 >> 32);
+#endif
+}
/// Under Windows it is not possible for a process to run on more than one
/// logical processor group. This usually means to be limited to use max 64
void bindThisThread(size_t idx);
}
+namespace CommandLine {
+ void init(int argc, char* argv[]);
+
+ extern std::string binaryDirectory; // path of the executable directory
+ extern std::string workingDirectory; // path of the working directory
+}
+
#endif // #ifndef MISC_H_INCLUDED