X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.cpp;h=69a756d9ce9b0b68ab0eecce7758a4ced1e05401;hp=dc0b51525981ba3656159c5255ebd06977ef5695;hb=e06a117d5e78ec4edc051f2b161d36559f784d37;hpb=d8f683760c9eb6d2c4714ec83e717dd2143de55c

diff --git a/src/position.cpp b/src/position.cpp
index dc0b5152..69a756d9 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -377,7 +377,7 @@ void Position::set_state(StateInfo* si) const {
 
 
 /// Position::set() is an overload to initialize the position object with
-/// the given endgame code string like "KBPKN". It is manily an helper to
+/// the given endgame code string like "KBPKN". It is mainly a helper to
 /// get the material key out of an endgame code. Position is not playable,
 /// indeed is even not guaranteed to be legal.
 
@@ -595,7 +595,7 @@ bool Position::pseudo_legal(const Move m) const {
                && empty(to - pawn_push(us))))
           return false;
   }
-  else if (!(attacks_from(pc, from) & to))
+  else if (!(attacks_from(type_of(pc), from) & to))
       return false;
 
   // Evasions generator already takes care to avoid some kind of illegal moves
@@ -648,7 +648,7 @@ bool Position::gives_check(Move m) const {
       return false;
 
   case PROMOTION:
-      return attacks_bb(Piece(promotion_type(m)), to, pieces() ^ from) & square<KING>(~sideToMove);
+      return attacks_bb(promotion_type(m), to, pieces() ^ from) & square<KING>(~sideToMove);
 
   // En passant capture with check? We have already handled the case
   // of direct checks and ordinary discovered check, so the only case we
@@ -827,7 +827,7 @@ void Position::do_move(Move m, StateInfo& newSt, bool givesCheck) {
 
       // Update pawn hash key and prefetch access to pawnsTable
       st->pawnKey ^= Zobrist::psq[pc][from] ^ Zobrist::psq[pc][to];
-      prefetch(thisThread->pawnsTable[st->pawnKey]);
+      prefetch2(thisThread->pawnsTable[st->pawnKey]);
 
       // Reset rule 50 draw counter
       st->rule50 = 0;