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Move constant bitboard arrays from header to cpp file

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This avoid to duplicate storage allocation for every file
where they are used.

Note that simple numeric constant can remain in header because
are automatically folded by the compiler.

Patch suggested by Tord.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-07-17 16:18:33 +01:00
parent 0d69ac33ff
commit b3b1d3aaa7
2 changed files with 54 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
src/bitboard.cpp
View File

@@ -163,6 +163,53 @@ const int RShift[64] = {
#endif // defined(IS_64BIT) #endif // defined(IS_64BIT)
const Bitboard SquaresByColorBB[2] = { BlackSquaresBB, WhiteSquaresBB };
const Bitboard FileBB[8] = {
FileABB, FileBBB, FileCBB, FileDBB, FileEBB, FileFBB, FileGBB, FileHBB
};
const Bitboard NeighboringFilesBB[8] = {
FileBBB, FileABB|FileCBB, FileBBB|FileDBB, FileCBB|FileEBB,
FileDBB|FileFBB, FileEBB|FileGBB, FileFBB|FileHBB, FileGBB
};
const Bitboard ThisAndNeighboringFilesBB[8] = {
FileABB|FileBBB, FileABB|FileBBB|FileCBB,
FileBBB|FileCBB|FileDBB, FileCBB|FileDBB|FileEBB,
FileDBB|FileEBB|FileFBB, FileEBB|FileFBB|FileGBB,
FileFBB|FileGBB|FileHBB, FileGBB|FileHBB
};
const Bitboard RankBB[8] = {
Rank1BB, Rank2BB, Rank3BB, Rank4BB, Rank5BB, Rank6BB, Rank7BB, Rank8BB
};
const Bitboard RelativeRankBB[2][8] = {
{ Rank1BB, Rank2BB, Rank3BB, Rank4BB, Rank5BB, Rank6BB, Rank7BB, Rank8BB },
{ Rank8BB, Rank7BB, Rank6BB, Rank5BB, Rank4BB, Rank3BB, Rank2BB, Rank1BB }
};
const Bitboard InFrontBB[2][8] = {
{ Rank2BB | Rank3BB | Rank4BB | Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank3BB | Rank4BB | Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank4BB | Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank6BB | Rank7BB | Rank8BB,
Rank7BB | Rank8BB,
Rank8BB,
EmptyBoardBB
},
{ EmptyBoardBB,
Rank1BB,
Rank2BB | Rank1BB,
Rank3BB | Rank2BB | Rank1BB,
Rank4BB | Rank3BB | Rank2BB | Rank1BB,
Rank5BB | Rank4BB | Rank3BB | Rank2BB | Rank1BB,
Rank6BB | Rank5BB | Rank4BB | Rank3BB | Rank2BB | Rank1BB,
Rank7BB | Rank6BB | Rank5BB | Rank4BB | Rank3BB | Rank2BB | Rank1BB
}
};
Bitboard RMask[64]; Bitboard RMask[64];
int RAttackIndex[64]; int RAttackIndex[64];

53
src/bitboard.h
View File

@@ -40,7 +40,6 @@ const Bitboard EmptyBoardBB = 0ULL;
const Bitboard WhiteSquaresBB = 0x55AA55AA55AA55AAULL; const Bitboard WhiteSquaresBB = 0x55AA55AA55AA55AAULL;
const Bitboard BlackSquaresBB = 0xAA55AA55AA55AA55ULL; const Bitboard BlackSquaresBB = 0xAA55AA55AA55AA55ULL;
const Bitboard SquaresByColorBB[2] = { BlackSquaresBB, WhiteSquaresBB };
const Bitboard FileABB = 0x0101010101010101ULL; const Bitboard FileABB = 0x0101010101010101ULL;
const Bitboard FileBBB = 0x0202020202020202ULL; const Bitboard FileBBB = 0x0202020202020202ULL;
@@ -51,22 +50,6 @@ const Bitboard FileFBB = 0x2020202020202020ULL;
const Bitboard FileGBB = 0x4040404040404040ULL; const Bitboard FileGBB = 0x4040404040404040ULL;
const Bitboard FileHBB = 0x8080808080808080ULL; const Bitboard FileHBB = 0x8080808080808080ULL;
const Bitboard FileBB[8] = {
FileABB, FileBBB, FileCBB, FileDBB, FileEBB, FileFBB, FileGBB, FileHBB
};
const Bitboard NeighboringFilesBB[8] = {
FileBBB, FileABB|FileCBB, FileBBB|FileDBB, FileCBB|FileEBB,
FileDBB|FileFBB, FileEBB|FileGBB, FileFBB|FileHBB, FileGBB
};
const Bitboard ThisAndNeighboringFilesBB[8] = {
FileABB|FileBBB, FileABB|FileBBB|FileCBB,
FileBBB|FileCBB|FileDBB, FileCBB|FileDBB|FileEBB,
FileDBB|FileEBB|FileFBB, FileEBB|FileFBB|FileGBB,
FileFBB|FileGBB|FileHBB, FileGBB|FileHBB
};
const Bitboard Rank1BB = 0xFFULL; const Bitboard Rank1BB = 0xFFULL;
const Bitboard Rank2BB = 0xFF00ULL; const Bitboard Rank2BB = 0xFF00ULL;
const Bitboard Rank3BB = 0xFF0000ULL; const Bitboard Rank3BB = 0xFF0000ULL;
@@ -76,35 +59,13 @@ const Bitboard Rank6BB = 0xFF0000000000ULL;
const Bitboard Rank7BB = 0xFF000000000000ULL; const Bitboard Rank7BB = 0xFF000000000000ULL;
const Bitboard Rank8BB = 0xFF00000000000000ULL; const Bitboard Rank8BB = 0xFF00000000000000ULL;
const Bitboard RankBB[8] = { extern const Bitboard SquaresByColorBB[2];
Rank1BB, Rank2BB, Rank3BB, Rank4BB, Rank5BB, Rank6BB, Rank7BB, Rank8BB extern const Bitboard FileBB[8];
}; extern const Bitboard NeighboringFilesBB[8];
extern const Bitboard ThisAndNeighboringFilesBB[8];
const Bitboard RelativeRankBB[2][8] = { extern const Bitboard RankBB[8];
{ Rank1BB, Rank2BB, Rank3BB, Rank4BB, Rank5BB, Rank6BB, Rank7BB, Rank8BB }, extern const Bitboard RelativeRankBB[2][8];
{ Rank8BB, Rank7BB, Rank6BB, Rank5BB, Rank4BB, Rank3BB, Rank2BB, Rank1BB } extern const Bitboard InFrontBB[2][8];
};
const Bitboard InFrontBB[2][8] = {
{ Rank2BB | Rank3BB | Rank4BB | Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank3BB | Rank4BB | Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank4BB | Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank5BB | Rank6BB | Rank7BB | Rank8BB,
Rank6BB | Rank7BB | Rank8BB,
Rank7BB | Rank8BB,
Rank8BB,
EmptyBoardBB
},
{ EmptyBoardBB,
Rank1BB,
Rank2BB | Rank1BB,
Rank3BB | Rank2BB | Rank1BB,
Rank4BB | Rank3BB | Rank2BB | Rank1BB,
Rank5BB | Rank4BB | Rank3BB | Rank2BB | Rank1BB,
Rank6BB | Rank5BB | Rank4BB | Rank3BB | Rank2BB | Rank1BB,
Rank7BB | Rank6BB | Rank5BB | Rank4BB | Rank3BB | Rank2BB | Rank1BB
}
};
extern Bitboard SetMaskBB[65]; extern Bitboard SetMaskBB[65];
extern Bitboard ClearMaskBB[65]; extern Bitboard ClearMaskBB[65];