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key: key_misc 由8位下降到2位

This commit is contained in:
Calcitem 2020-10-01 15:18:26 +08:00
parent 032a514c5a
commit 6e22421d8e
1 changed files with 2 additions and 16 deletions
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18
src/position.cpp
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@ -1254,26 +1254,12 @@ inline Key Position::revert_key(Square s)
Key Position::update_key_misc()
{
const int KEY_MISC_BIT = 8;
const int KEY_MISC_BIT = 2;
st->key = st->key << KEY_MISC_BIT >> KEY_MISC_BIT;
Key hi = 0;
#if 0
if (sideToMove == WHITE) {
hi |= 1U;
}
#endif
#if 0
if (action == ACTION_REMOVE) {
hi |= 1U << 1;
}
hi |= static_cast<Key>(pieceCountInHand[BLACK]) << 4; // TODO: may use phase is also OK?
#endif
hi |= static_cast<Key>(pieceCountNeedRemove) << 2;
hi |= static_cast<Key>(pieceCountNeedRemove);
st->key = st->key | (hi << (CHAR_BIT * sizeof(Key) - KEY_MISC_BIT));