Marco Costalba
8a85007023
Test with SEE shortcut
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-26 10:11:13 +01:00
Marco Costalba
4397e6c03e
Better naming of pseudo-legality and legality testing
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No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-26 10:11:13 +01:00
Marco Costalba
4f14bd5032
Try to cleanup movepick
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Hopefully without regressions.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-26 10:11:13 +01:00
Marco Costalba
f8bc38a006
Restore original movepick modulo space inflation
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We have a regression somewhere here so restart from zero
and proceed one change at a time.
With this modification we have the same strenght of
"Introduce Stockfish" patch that is our strongest to date.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-26 10:11:13 +01:00
Marco Costalba
5dd9159106
Space inflate position: complete!
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-26 10:10:56 +01:00
Marco Costalba
ad956ef00a
Space inflate position until do_promotion_move()
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We will end some day ;-)
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:05 +02:00
Marco Costalba
d155cd88d1
Start to space inflate position.cpp
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It's a big file!
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:05 +02:00
Marco Costalba
2aebf8eb55
Fix a performance bug in generate_move_if_legal
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Use the pinned argument in pos.move_is_legal()
No functional change, simply use pos.move_is_legal() as
was meant to be.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:05 +02:00
Marco Costalba
1ac2f50145
Unify pinned and discovery checks code
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Templates are our friends here. No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:04 +02:00
Marco Costalba
af59cb1d63
Refactor Position::pinned_pieces() to use templates
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Also better document this interesting function.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:04 +02:00
Marco Costalba
2f8961beef
movegen: add SERIALIZE_MOVES and hides a bunch of loops
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Only syntactic sugar, perhaps we should leave as is, anyhow...
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:04 +02:00
Marco Costalba
af5743837d
Another generate_piece_moves() micro optimization
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This time on the for loop.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:10:04 +02:00
Marco Costalba
5e768e4b0a
Fix another template conversion bug in movegen
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Hopefully the last one.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-24 21:09:51 +02:00
Marco Costalba
2d867109d9
movegen: prefer (*mlist++) to mlist[n++]
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Teoretically faster, practically it helps to
removes some more lines.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-23 07:17:04 +02:00
Marco Costalba
b145e99559
Fix a bug in generate_pawn_captures()
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Introduced in "movegen: Introduce generate_pawn_captures()"
when unifiying black and white functions.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-23 07:17:04 +02:00
Marco Costalba
8f2c1c59eb
Fully templetize pawn move generators
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A little bit more syntax heavuer but surely faster.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-23 07:17:04 +02:00
Marco Costalba
c40249e9d2
Micro optimize generate_piece_moves()
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It is a time critical path. The biggest in move generation.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-21 00:10:27 +02:00
Marco Costalba
ce93a202b5
Another Intel warning sqeezed
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:57:13 +02:00
Marco Costalba
279ed7ed48
Quiet a warning on Intel compiler
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Plus usual trailing whitespace noise.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:55:43 +02:00
Marco Costalba
af6571856e
Shrink arguments in move generation functions
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Perhaps no speedup, but it is more readable.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:21 +02:00
Marco Costalba
0c8659721f
Fix a bug in king discoveries checks
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Introduced in "Add a generate_piece_checks() specialization for the king"
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:20 +02:00
Marco Costalba
5dc2312121
Update copyright info
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:20 +02:00
Marco Costalba
aa94f2f4c2
Last little touches to movegen
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No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:19 +02:00
Marco Costalba
d7161c1ce6
Rename PawnOffsets in PawnParams
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:19 +02:00
Marco Costalba
e2af0e775b
Pawn move generator: dispatch at compile time
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Instead of function pointers use templates to
dispatch shift operations.
It is more clear and possibly also faster because
branches are removed at compile time.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:19 +02:00
Marco Costalba
ad1bb084dd
Start to templetize pawn move generators
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Still very soft, we will see if compiler is
enough or we need more aggressive templetization.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:18 +02:00
Marco Costalba
760f77872f
Remove Positions::xxx_count() functions
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:18 +02:00
Marco Costalba
257689dec7
Remove white/black_pawn_attacks_square()
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:18 +02:00
Marco Costalba
ff211469ba
Templetize Position::xxx_attacks_square()
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:17 +02:00
Marco Costalba
d4f14a8e83
Remove Position::xxx_list() functions
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No useful, only obfuscating.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:17 +02:00
Marco Costalba
7eb290a509
Add a generate_piece_checks() specialization for the king
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Also reshuffle the code a bit.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:17 +02:00
Marco Costalba
d316b02771
Remove white/black_pawn_attacks()
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Unuseful syntactic sugar, obfuscates the
real code.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:17 +02:00
Marco Costalba
d9e54ceaa1
Prefer template to name decoration
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This also allows faster code although bigger.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:16 +02:00
Marco Costalba
691de79eaa
Fix a missing comma in BenchmarkPositions[]
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An old bug introduced in 3e0dc9ee84
almost
one month ago.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:16 +02:00
Marco Costalba
3f38cca072
Position::is_ok()give more info on failed test
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:16 +02:00
Marco Costalba
6b8a07eccc
Fix an assert due to a missing parentesis
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Bitwise operators precedence issue here, was
causing an assert.
This is a fallout from recent patches.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:15 +02:00
Marco Costalba
8e85aa3a65
Final semplification of generate_evasions()
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Now it's readable!
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:15 +02:00
Marco Costalba
4f18528a1c
Introduce generate_piece_blocking_evasions()
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Start to simplify generate_evasions
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:15 +02:00
Marco Costalba
4a4d62da13
Space inflate generate_evasions()
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-20 21:47:15 +02:00
Marco Costalba
72289fcfab
movegen: Introduce generate_pawn_noncaptures()
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This is the last of pawn moves generators converted
to new unified form.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:35 +02:00
Marco Costalba
73d0d2c0b2
movegen: Introduce generate_pawn_captures()
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Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:35 +02:00
Marco Costalba
c1257d45b2
movegen: Fix just introduced move counter bug
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This is what happens when you don't tests your patches !!
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:35 +02:00
Marco Costalba
34a515f20b
movegen: Introduce generate_pawn_checks()
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This greatly simplify redundant code.
Perhaps slihtly slower. Test needed.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:35 +02:00
Marco Costalba
5abe8a0816
generate_checks: fix a bug in black double pawn push
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It was written pos.black_pawn_attacks(ksq) instead of
pos.white_pawn_attacks(ksq)
Updated to the undrlying pos.pawn_attacks(WHITE, ksq)
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:34 +02:00
Marco Costalba
35fd5ce5bc
Space inflate generate_castle_moves()
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No functional change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:34 +02:00
Marco Costalba
146bb2dfa7
Unify pieces check generation with generate_piece_checks()
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Could be slower: test needed!
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:34 +02:00
Marco Costalba
ea16985ea5
Do not special case generate_king_moves()
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Teoretically a little slowdown. If after testing we
verify the slowdown has impact on ELO we revert the
change.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:34 +02:00
Marco Costalba
3b857d1625
Use a const pointer-to-member array for attacks
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Allow the compiler to optimize member
function access.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:34 +02:00
Marco Costalba
aa7121297d
Use pointer-to-members to remove a bunch of duplicated code
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Remove all generate_XXX_moves() functions, use an array
of pointer to members instead.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:34 +02:00
Marco Costalba
94f1b31484
movegen: revert see ordering in score_captures()
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It works better with MVV ordering.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
2008-10-18 21:35:33 +02:00