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78 commits

Author SHA1 Message Date
Marco Costalba
f2950ae206 Simplify bitbase.cpp 
Use a std::vector to store positions and
rearrange KPKPosition.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2013-02-13 20:13:44 +01:00
Marco Costalba
faaa1f1116 Don't push on the stack 200KB in one go 
This could be a limit on some platforms (as it seems
to be in Native Client). Patch from a SF fork on github:

47374afd6f

No functional change.
 2012-09-30 11:35:14 +02:00
Marco Costalba
7c1f8dbde9 Introduce namespace Bitbases 
Let's continue this namespace galore...

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2012-08-18 13:08:12 +01:00
Marco Costalba
6b5322ce00 Rename first_1 / last_1 in lsb / msb 
It seems more accurate: lsb is clear while 'first
bit' depends from where you look at the bitboard.

And fix compile in case of 64 bits platforms that
do not use BSFQ intrinsics.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2012-07-08 09:36:40 +01:00
Marco Costalba
5f5d056c8f Replace make_square() with operator|(File, Rank) 
Be fancy :-)

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2012-06-23 09:17:54 +01:00
Marco Costalba
0ecc920a09 Add a known draw case in kpk bitbase generation 
Early classify as known draws the positions
where white king is trapped on the rook file.

Suggested by Dan Honeycutt.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2012-05-19 08:45:16 +01:00
Marco Costalba
a94fd3bbec Reformat kpk bitbase 
Simplify and streamline the code. Verified all the
resulting bitbases are not changed.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2012-01-30 19:19:47 +01:00
Marco Costalba
a492a9dd07 Bitwise operator overloads between Bitboard and Square 
Yes, we try to be fancy here ;-)

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2012-01-29 10:59:50 +01:00
Marco Costalba
8307da0de7 Update copyright year to 2012 
And refresh Readme.txt while there.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-12-30 13:52:16 +01:00
Marco Costalba
a695ed65a8 Rename Pieces 
Align with PieceType naming convention and
make them more readable.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-12-28 10:38:48 +01:00
Marco Costalba
a44c5cf4f7 Prefer 0 to EmptyBoardBB 
Easier and even faster or at least easier to optimize.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-12-03 12:02:13 +01:00
Marco Costalba
c2c185423b Better naming borrowed from Critter 
In line with http://chessprogramming.wikispaces.com conventions.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-10-02 10:16:59 +01:00
Marco Costalba
15683034a7 Speed up kpk initialization 
The trick is to classify more position at first cycle,
so to reduce following work. Speed up is of about 50% !

Also some cleanup while there.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-06-15 12:11:35 +01:00
Marco Costalba
635be39acf Additional cleanup in bitbase.cpp 
Also better document what code does.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-03-12 18:22:22 +01:00
Marco Costalba
c1c0984452 Move KPKBitbase[] where it belongs 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-03-12 12:12:41 +01:00
Marco Costalba
d653aeca05 Fix a couple of issues in bitbase.cpp 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-03-12 11:22:02 +01:00
Marco Costalba
d9113d127b Rename NonSlidingAttacksBB[] in StepAttacksBB[] 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-03-10 08:10:26 +01:00
Marco Costalba
0fcda095df Move all enum types definitions to types.h 
Cleanup headers while there.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-02-23 21:52:55 +01:00
Marco Costalba
be5b32bb9c Another round of bitboard.cpp cleanups 
Also renamed StepAttackBB[] in NonSlidingAttacksBB[]

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2011-01-04 11:12:31 +01:00
Marco Costalba
469e7c5143 Retire bitbase.h 
Moved the only prototipe where is needed.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2010-11-07 10:53:19 +01:00
Marco Costalba
2adbb80b8b Space inflate bitbase.cpp 
Also heavy cleanup while there.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2010-07-11 12:05:06 +01:00
Marco Costalba
9fc602bae7 Updated copyright year to 2010 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2010-03-20 11:27:07 +01:00
Marco Costalba
5c81602d14 Update copyright year 
We are well in 2009 already.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-05-07 14:54:40 +02:00
Marco Costalba
feb5342b39 Safe guard some wild and ugly casts 
These casts are needed but plain ugly, at least be
sure they don't hide any subtle conversion bug.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-03-16 13:59:41 +01:00
Marco Costalba
b870f5a091 Silence a good bunch of Intel warnings 
Note that some pawns and material info has been switched
to int from int8_t.

This is a waste of space but it is not clear if we have a
faster or slower code (or nothing changed), some test should be
needed.

Few warnings still are alive.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-03-15 18:19:08 +01:00
Marco Costalba
c97104e854 Big trailing whitespace cleanup part 1 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2009-01-07 15:47:59 +01:00
Marco Costalba
5dc2312121 Update copyright info 
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
 2008-10-20 21:47:20 +02:00
Marco Costalba
bb751d6c89 Initial import of Glaurung 2.1 2008-09-01 07:59:13 +02:00