X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fhistory.cpp;h=a57e6de8da5a5324d09f586304130b64881573f1;hp=8c20f7e0578feb521aa54b10bf25da7e2089f7ff;hb=1fc88071d1b982166de5af42e834e018ead80595;hpb=f37741cc83e620588d49bbb3a2349c9505e87f61

diff --git a/src/history.cpp b/src/history.cpp
index 8c20f7e0..a57e6de8 100644
--- a/src/history.cpp
+++ b/src/history.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) 2008-2009 Marco Costalba
+  Copyright (C) 2008-2010 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
@@ -42,7 +42,7 @@ History::History() { clear(); }
 
 void History::clear() {
   memset(history, 0, 2 * 8 * 64 * sizeof(int));
-  memset(maxStaticValueDelta, 0, 16 * 64 * 64 * sizeof(int));
+  memset(maxStaticValueDelta, 0, 2 * 8 * 64 * sizeof(int));
 }
 
 
@@ -101,15 +101,15 @@ int History::move_ordering_score(Piece p, Square to) const {
 /// gain of a move given the delta of the static position evaluations
 /// before and after the move.
 
-void History::set_gain(Piece p, Square from, Square to, Value delta)
+void History::set_gain(Piece p, Square to, Value delta)
 {
-  if (delta >= maxStaticValueDelta[p][from][to])
-      maxStaticValueDelta[p][from][to] = delta;
+  if (delta >= maxStaticValueDelta[p][to])
+      maxStaticValueDelta[p][to] = delta;
   else
-      maxStaticValueDelta[p][from][to]--;
+      maxStaticValueDelta[p][to]--;
 }
 
-Value History::gain(Piece p, Square from, Square to) const
+Value History::gain(Piece p, Square to) const
 {
-  return Value(maxStaticValueDelta[p][from][to]);
+  return Value(maxStaticValueDelta[p][to]);
 }