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Code Issues Releases Wiki Activity

Remove SquareBB

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root 2015-01-10 13:18:43 +00:00
parent 1aa5432cb2
commit 7df483068d
2 changed files with 0 additions and 27 deletions
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6
src/bitboard.cpp
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@ -7,7 +7,6 @@
int SquareDistance[SQUARE_NB][SQUARE_NB];
Bitboard SquareBB[SQUARE_NB];
Bitboard FileBB[FILE_NB];
Bitboard RankBB[RANK_NB];
Bitboard AdjacentFilesBB[FILE_NB];
@ -25,11 +24,6 @@ Bitboard PawnAttackSpan[COLOR_NB][SQUARE_NB];
void Bitboards::init() {
for (Square s = SQ_A1; s <= SQ_H8; ++s)
{
SquareBB[s] = 1ULL << s;
}
for (File f = FILE_A; f <= FILE_H; ++f)
FileBB[f] = f > FILE_A ? FileBB[f - 1] << 1 : FileABB;

21
src/bitboard.h
View file

@ -51,7 +51,6 @@ extern Bitboard BishopMagics [SQUARE_NB];
extern Bitboard* BishopAttacks[SQUARE_NB];
extern unsigned BishopShifts [SQUARE_NB];
extern Bitboard SquareBB[SQUARE_NB];
extern Bitboard FileBB[FILE_NB];
extern Bitboard RankBB[RANK_NB];
extern Bitboard AdjacentFilesBB[FILE_NB];
@ -69,26 +68,6 @@ extern Bitboard PseudoAttacks[PIECE_TYPE_NB][SQUARE_NB];
/// Overloads of bitwise operators between a Bitboard and a Square for testing
/// whether a given bit is set in a bitboard, and for setting and clearing bits.
inline Bitboard operator&(Bitboard b, Square s) {
return b & SquareBB[s];
}
inline Bitboard operator|(Bitboard b, Square s) {
return b | SquareBB[s];
}
inline Bitboard operator^(Bitboard b, Square s) {
return b ^ SquareBB[s];
}
inline Bitboard& operator|=(Bitboard& b, Square s) {
return b |= SquareBB[s];
}
inline Bitboard& operator^=(Bitboard& b, Square s) {
return b ^= SquareBB[s];
}
inline bool more_than_one(Bitboard b) {
return b & (b - 1);
}