X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fhistory.cpp;h=6849839ca2305161b24b32e4be106de833126c2f;hp=a57e6de8da5a5324d09f586304130b64881573f1;hb=ba1a44f21665056bed6f4b767e1a5b1b381e7e22;hpb=9fc602bae74b8e09bd45ace3b42a8ce84d56b23c diff --git a/src/history.cpp b/src/history.cpp index a57e6de8..6849839c 100644 --- a/src/history.cpp +++ b/src/history.cpp @@ -41,8 +41,8 @@ History::History() { clear(); } /// History::clear() clears the history tables void History::clear() { - memset(history, 0, 2 * 8 * 64 * sizeof(int)); - memset(maxStaticValueDelta, 0, 2 * 8 * 64 * sizeof(int)); + memset(history, 0, 16 * 64 * sizeof(int)); + memset(maxStaticValueDelta, 0, 16 * 64 * sizeof(int)); } @@ -85,31 +85,14 @@ void History::failure(Piece p, Square to, Depth d) { } -/// History::move_ordering_score() returns an integer value used to order the -/// non-capturing moves in the MovePicker class. - -int History::move_ordering_score(Piece p, Square to) const { - - assert(piece_is_ok(p)); - assert(square_is_ok(to)); - - return history[p][to]; -} - - /// History::set_gain() and History::gain() store and retrieve the /// gain of a move given the delta of the static position evaluations /// before and after the move. -void History::set_gain(Piece p, Square to, Value delta) -{ +void History::set_gain(Piece p, Square to, Value delta) { + if (delta >= maxStaticValueDelta[p][to]) maxStaticValueDelta[p][to] = delta; else maxStaticValueDelta[p][to]--; } - -Value History::gain(Piece p, Square to) const -{ - return Value(maxStaticValueDelta[p][to]); -}