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Fix parametrized direction in pawns generation

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It worked by accident because we always called both directions,
but definition was wrong.

Functional change due to different generation order, but
perft numbers are the correct ones.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2011-07-15 11:40:09 +02:00
parent 9c8c0de538
commit 37d551fb39
1 changed files with 2 additions and 2 deletions
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4
src/movegen.cpp
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@@ -406,8 +406,8 @@ namespace {
const Bitboard TRank7BB = (Us == WHITE ? Rank7BB : Rank2BB); const Bitboard TRank7BB = (Us == WHITE ? Rank7BB : Rank2BB);
const Bitboard TRank3BB = (Us == WHITE ? Rank3BB : Rank6BB); const Bitboard TRank3BB = (Us == WHITE ? Rank3BB : Rank6BB);
const Square UP = (Us == WHITE ? DELTA_N : DELTA_S); const Square UP = (Us == WHITE ? DELTA_N : DELTA_S);
const Square RIGHT_UP = (Us == WHITE ? DELTA_NE : DELTA_SE); const Square RIGHT_UP = (Us == WHITE ? DELTA_NE : DELTA_SW);
const Square LEFT_UP = (Us == WHITE ? DELTA_NW : DELTA_SW); const Square LEFT_UP = (Us == WHITE ? DELTA_NW : DELTA_SE);
Square to; Square to;
Bitboard b1, b2, dc1, dc2, pawnPushes, emptySquares; Bitboard b1, b2, dc1, dc2, pawnPushes, emptySquares;