Esempio n. 1
0
force_inline
static move *generate_rook_moves(uint64_t rooks, const uint64_t occupied, const uint64_t targets, move *moves) {
    int from;
    int to;
    uint64_t posmoves;
    while (rooks) {
        from = lsb(rooks);
        posmoves = rook_attacks(from, occupied) & targets;
        while (posmoves) {
            to = lsb(posmoves);
            *moves++ = MOVE(from, to);
            clear_lsb(posmoves);
        }
        clear_lsb(rooks);
    }
    return moves;
}
Esempio n. 2
0
File: see.c Progetto: zakk/quasar
BITBOARD attacks_to_square(struct board_t *brd,short sq)
{
    BITBOARD bq,rq,kings;

    bq=brd->pcs[WHITE][BISHOP]|brd->pcs[WHITE][QUEEN]|
       brd->pcs[BLACK][BISHOP]|brd->pcs[BLACK][QUEEN];

    rq=brd->pcs[WHITE][ROOK]|brd->pcs[WHITE][QUEEN]|
       brd->pcs[BLACK][ROOK]|brd->pcs[BLACK][QUEEN];

    kings=setmask[brd->king[WHITE]]|setmask[brd->king[BLACK]];

    return((pawn_attacks[WHITE][sq]&brd->pcs[BLACK][PAWN])|
           (pawn_attacks[BLACK][sq]&brd->pcs[WHITE][PAWN])|
	   (knight_attacks[sq]&(brd->pcs[WHITE][KNIGHT]|brd->pcs[BLACK][KNIGHT]))|
	   (bishop_attacks(brd,sq)&bq)|
	   (rook_attacks(brd,sq)&rq)|
	   (king_attacks[sq]&kings));
}