Marco Costalba
063e2441b1
Retire USE_COMPACT_ROOK_ATTACKS and USE_FOLDED_BITSCAN defines
...
This greatly simplifies bitboard.cpp that now has only two setups,
respectively for 32 and 64 bits CPU according to IS_64BIT define
that is automatically set but can be tweaked manually in
bitboard.h
No functional change both in 32 and in 64 bits.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-07-03 07:52:10 +01:00
Marco Costalba
3376c68f4b
Introduce bitcount.h
...
It will be used for POPCNT intrinsics.
For now no bianry and functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-05-21 16:19:20 +02:00
Marco Costalba
3e40bd0648
Introduce do_move_bb() to update bitboards after a move
...
Avoid a clear_bit() + set_bit() sequence but update bitboards
with only one xor instructions.
This is faster and simplifies the code.
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-05-21 10:55:23 +02:00
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
74160ac602
Big headers cleanup
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No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-03-19 12:55:32 +01:00
Marco Costalba
c32904f0a0
Revert previous commit.
...
Optimization is correct but slightly slower
so it is a pessimization :-)
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-02-04 19:40:09 +01:00
Marco Costalba
6cfb661ca5
Yet another count_1s() optimization
...
No functional change
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-01-25 19:29:15 +01:00
Marco Costalba
be43219136
Rever count_1s() optimizations
...
They are wrong for all ones case.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-01-25 18:00:57 +01:00
Marco Costalba
3e6e57231e
Rewrite count_1s() to be similar to 64bit counterpart
...
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-01-11 17:15:18 +01:00
Marco Costalba
14c1fd4d27
Micro optimize count_1s_max_15() for 32 bit system
...
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2009-01-11 17:05:29 +01:00
Marco Costalba
389dc0e83b
Add behind_bb() helper to simplify code logic
...
No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-12-10 00:14:24 +01:00
Marco Costalba
aaad48464b
Add a see() function that take only destination square
...
In this case firstlocates the least valuable attacker, if any,
then proceed as usual.
This will be used by next patch.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-12-10 00:13:59 +01:00
Marco Costalba
74f1efee26
Manual merge
2008-10-26 21:44:58 +01:00
Marco Costalba
af59cb1d63
Refactor Position::pinned_pieces() to use templates
...
Also better document this interesting function.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:04 +02:00
Marco Costalba
279ed7ed48
Quiet a warning on Intel compiler
...
Plus usual trailing whitespace noise.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:55:43 +02:00
Marco Costalba
5dc2312121
Update copyright info
...
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:20 +02:00
Marco Costalba
d3600c39a7
Update copyright info
...
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-19 20:43:33 +01:00
Marco Costalba
d6618d7325
Add auto configuration for 32/64 bits
...
Instead of manually adjust defines in bitboard.h
now proper ones are automatically set.
It is anyhow possible to still set them manually
in case of problems.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-09-25 07:51:56 +02:00
Marco Costalba
bb751d6c89
Initial import of Glaurung 2.1
2008-09-01 07:59:13 +02:00
