X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftt.cpp;h=75542d49e648964c0d1cdc762b7991e0dc3bb226;hp=76cd9218aad633997240f01217396e1b6aa54ff6;hb=7b20bb6e1a98758e6afabe4e654761685c8dafa5;hpb=91cc82aa2566e6b6fa60cf82298250d6e4e2dd46 diff --git a/src/tt.cpp b/src/tt.cpp index 76cd9218..75542d49 100644 --- a/src/tt.cpp +++ b/src/tt.cpp @@ -1,7 +1,7 @@ /* Stockfish, a UCI chess playing engine derived from Glaurung 2.1 Copyright (C) 2004-2008 Tord Romstad (Glaurung author) - Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad + Copyright (C) 2008-2015 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 @@ -32,6 +32,8 @@ TranspositionTable TT; // Our global transposition table void TranspositionTable::resize(size_t mbSize) { + assert(sizeof(TTCluster) == CacheLineSize / 2); + size_t newClusterCount = size_t(1) << msb((mbSize * 1024 * 1024) / sizeof(TTCluster)); if (newClusterCount == clusterCount) @@ -40,7 +42,7 @@ void TranspositionTable::resize(size_t mbSize) { clusterCount = newClusterCount; free(mem); - mem = calloc(clusterCount * sizeof(TTCluster) + CACHE_LINE_SIZE - 1, 1); + mem = calloc(clusterCount * sizeof(TTCluster) + CacheLineSize - 1, 1); if (!mem) { @@ -49,7 +51,7 @@ void TranspositionTable::resize(size_t mbSize) { exit(EXIT_FAILURE); } - table = (TTCluster*)((uintptr_t(mem) + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1)); + table = (TTCluster*)((uintptr_t(mem) + CacheLineSize - 1) & ~(CacheLineSize - 1)); } @@ -75,7 +77,7 @@ TTEntry* TranspositionTable::probe(const Key key, bool& found) const { TTEntry* const tte = first_entry(key); const uint16_t key16 = key >> 48; // Use the high 16 bits as key inside the cluster - for (unsigned i = 0; i < TTClusterSize; ++i) + for (int i = 0; i < TTClusterSize; ++i) if (!tte[i].key16 || tte[i].key16 == key16) { if (tte[i].key16) @@ -86,7 +88,7 @@ TTEntry* TranspositionTable::probe(const Key key, bool& found) const { // Find an entry to be replaced according to the replacement strategy TTEntry* replace = tte; - for (unsigned i = 1; i < TTClusterSize; ++i) + for (int i = 1; i < TTClusterSize; ++i) if ( (( tte[i].genBound8 & 0xFC) == generation8 || tte[i].bound() == BOUND_EXACT) - ((replace->genBound8 & 0xFC) == generation8) - (tte[i].depth8 < replace->depth8) < 0)