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Micro optimize and rename move_promotion()

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Rename to move_is_promotion() to be more clear, also add
a new function move_promotion_piece() to get the
promotion piece type in the few places where is needed.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-06-20 08:31:39 +01:00
parent b1e79fed99
commit 3a4d6e2034
7 changed files with 30 additions and 26 deletions
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12
src/position.cpp
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@@ -555,12 +555,12 @@ bool Position::move_is_check(Move m, Bitboard dcCandidates) const {
&& (direction_between_squares(from, ksq) != direction_between_squares(to, ksq)))
return true;
if (move_promotion(m)) // Promotion with check?
if (move_is_promotion(m)) // Promotion with check?
{
Bitboard b = occupied_squares();
clear_bit(&b, from);
switch (move_promotion(m))
switch (move_promotion_piece(m))
{
case KNIGHT:
return bit_is_set(piece_attacks<KNIGHT>(to), ksq);
@@ -721,7 +721,7 @@ void Position::do_move(Move m, StateInfo& newSt, Bitboard dcCandidates) {
if (move_is_castle(m))
do_castle_move(m);
else if (move_promotion(m))
else if (move_is_promotion(m))
do_promotion_move(m);
else if (move_is_ep(m))
do_ep_move(m);
@@ -1005,7 +1005,7 @@ void Position::do_promotion_move(Move m) {
board[from] = EMPTY;
// Insert promoted piece
promotion = move_promotion(m);
promotion = move_promotion_piece(m);
assert(promotion >= KNIGHT && promotion <= QUEEN);
set_bit(&(byColorBB[us]), to);
set_bit(&(byTypeBB[promotion]), to);
@@ -1152,7 +1152,7 @@ void Position::undo_move(Move m) {
if (move_is_castle(m))
undo_castle_move(m);
else if (move_promotion(m))
else if (move_is_promotion(m))
undo_promotion_move(m);
else if (move_is_ep(m))
undo_ep_move(m);
@@ -1304,7 +1304,7 @@ void Position::undo_promotion_move(Move m) {
assert(piece_on(from) == EMPTY);
// Remove promoted piece
promotion = move_promotion(m);
promotion = move_promotion_piece(m);
assert(piece_on(to)==piece_of_color_and_type(us, promotion));
assert(promotion >= KNIGHT && promotion <= QUEEN);
clear_bit(&(byColorBB[us]), to);