/*
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) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
using namespace std;
/// Version number. If Version is left empty, then Tag plus current
-/// date (in the format YYMMDD) is used as a version number.
+/// date, in the format DD-MM-YY, are used as a version number.
static const string Version = "";
static const string Tag = "";
-/// engine_info() returns the full name of the current Stockfish version.
-/// This will be either "Stockfish YYMMDD" (where YYMMDD is the date when
-/// the program was compiled) or "Stockfish <version number>", depending
-/// on whether Version is empty.
+/// engine_info() returns the full name of the current Stockfish version. This
+/// will be either "Stockfish <Tag> DD-MM-YY" (where DD-MM-YY is the date when
+/// the program was compiled) or "Stockfish <Version>", depending on whether
+/// Version is empty.
const string engine_info(bool to_uci) {
{
date >> month >> day >> year;
- s << Tag << setfill('0') << " " << year.substr(2)
- << setw(2) << (1 + months.find(month) / 4) << setw(2) << day;
+ s << Tag << string(Tag.empty() ? "" : " ") << setfill('0') << setw(2) << day
+ << "-" << setw(2) << (1 + months.find(month) / 4) << "-" << year.substr(2);
}
s << cpu64 << popcnt << (to_uci ? "\nid author ": " by ")
}
+/// Convert system time to milliseconds. That's all we need.
+
+Time::point Time::now() {
+ sys_time_t t; system_time(&t); return time_to_msec(t);
+}
+
+
/// Debug functions used mainly to collect run-time statistics
static uint64_t hits[2], means[2];
int cpu_count() {
-#if defined(_WIN32) || defined(_WIN64)
+#if defined(_WIN32)
SYSTEM_INFO s;
GetSystemInfo(&s);
return s.dwNumberOfProcessors;
void timed_wait(WaitCondition& sleepCond, Lock& sleepLock, int msec) {
-#if defined(_WIN32) || defined(_WIN64)
+#if defined(_WIN32)
int tm = msec;
#else
timespec ts, *tm = &ts;
- uint64_t ms = Time::current_time().msec() + msec;
+ uint64_t ms = Time::now() + msec;
ts.tv_sec = ms / 1000;
ts.tv_nsec = (ms % 1000) * 1000000LL;
#else
-# include <xmmintrin.h>
-
void prefetch(char* addr) {
-# if defined(__INTEL_COMPILER) || defined(__ICL)
+# if defined(__INTEL_COMPILER)
// This hack prevents prefetches to be optimized away by
// Intel compiler. Both MSVC and gcc seems not affected.
__asm__ ("");
# endif
- _mm_prefetch(addr, _MM_HINT_T2);
- _mm_prefetch(addr+64, _MM_HINT_T2); // 64 bytes ahead
+# if defined(__INTEL_COMPILER) || defined(_MSC_VER)
+ _mm_prefetch(addr, _MM_HINT_T0);
+# else
+ __builtin_prefetch(addr);
+# endif
}
#endif