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Rewrite generate_pawn_moves() and simplify evasions

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Big cleanup and semplification of pawns evasions that
now are pseudo-legal as the remaining moves. This
allow us to remove a lot of tricky code.

Verified against perft: no functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-11-03 12:29:07 +01:00
parent deecb3757c
commit 0855d93de8
6 changed files with 118 additions and 188 deletions
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2
src/movegen.h
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@@ -35,7 +35,7 @@
extern MoveStack* generate_captures(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_noncaptures(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_non_capture_checks(const Position& pos, MoveStack* mlist, Bitboard dc);
extern MoveStack* generate_evasions(const Position& pos, MoveStack* mlist, Bitboard pinned);
extern MoveStack* generate_evasions(const Position& pos, MoveStack* mlist);
extern MoveStack* generate_moves(const Position& pos, MoveStack* mlist, bool pseudoLegal = false);
extern bool move_is_legal(const Position& pos, const Move m, Bitboard pinned);
extern bool move_is_legal(const Position& pos, const Move m);