matsig.h File Reference

#include "common.h"
#include <algorithm>
#include <string>

Include dependency graph for matsig.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Macros
#define	SHIFT_BP   0
#define	SHIFT_BN   4
#define	SHIFT_BB   6
#define	SHIFT_BR   8
#define	SHIFT_BQ   10
#define	SHIFT_WP   12
#define	SHIFT_WN   16
#define	SHIFT_WB   18
#define	SHIFT_WR   20
#define	SHIFT_WQ   22
#define	MASK_BP   0x0000000F
#define	MASK_BN   0x00000030
#define	MASK_BB   0x000000C0
#define	MASK_BR   0x00000300
#define	MASK_BQ   0x00000C00
#define	MASK_WP   0x0000F000
#define	MASK_WN   0x00030000
#define	MASK_WB   0x000C0000
#define	MASK_WR   0x00300000
#define	MASK_WQ   0x00C00000
#define	MATSIG_FlipColor(x)   ((x) >> 12) | (((x) & 0x00000FFF) << 12)
#define	MATSIG_Has_WQ(x)   ((x) & MASK_WQ)
#define	MATSIG_Has_BQ(x)   ((x) & MASK_BQ)
#define	MATSIG_Has_WR(x)   ((x) & MASK_WR)
#define	MATSIG_Has_BR(x)   ((x) & MASK_BR)
#define	MATSIG_Has_WB(x)   ((x) & MASK_WB)
#define	MATSIG_Has_BB(x)   ((x) & MASK_BB)
#define	MATSIG_Has_WN(x)   ((x) & MASK_WN)
#define	MATSIG_Has_BN(x)   ((x) & MASK_BN)
#define	MATSIG_Has_WP(x)   ((x) & MASK_WP)
#define	MATSIG_Has_BP(x)   ((x) & MASK_BP)
#define	MATSIG_HasQueens(x)   ((x) & (MASK_WQ | MASK_BQ))
#define	MATSIG_HasRooks(x)   ((x) & (MASK_WR | MASK_BR))
#define	MATSIG_HasBishops(x)   ((x) & (MASK_WB | MASK_BB))
#define	MATSIG_HasKnights(x)   ((x) & (MASK_WN | MASK_BN))
#define	MATSIG_HasPawns(x)   ((x) & (MASK_WP | MASK_BP))
#define	MATSIG_Count_WQ(x)   (((x) & MASK_WQ) >> SHIFT_WQ)
#define	MATSIG_Count_BQ(x)   (((x) & MASK_BQ) >> SHIFT_BQ)
#define	MATSIG_Count_WR(x)   (((x) & MASK_WR) >> SHIFT_WR)
#define	MATSIG_Count_BR(x)   (((x) & MASK_BR) >> SHIFT_BR)
#define	MATSIG_Count_WB(x)   (((x) & MASK_WB) >> SHIFT_WB)
#define	MATSIG_Count_BB(x)   (((x) & MASK_BB) >> SHIFT_BB)
#define	MATSIG_Count_WN(x)   (((x) & MASK_WN) >> SHIFT_WN)
#define	MATSIG_Count_BN(x)   (((x) & MASK_BN) >> SHIFT_BN)
#define	MATSIG_Count_WP(x)   (((x) & MASK_WP) >> SHIFT_WP)
#define	MATSIG_Count_BP(x)   (((x) & MASK_BP) >> SHIFT_BP)

Typedefs
typedef uint32_t	matSigT

Functions
uint	matsig_getCount (matSigT m, pieceT p)
matSigT	matsig_setCount (matSigT m, pieceT p, uint count)
std::string	matsig_makeString (matSigT matsig)
bool	matsig_isReachable (matSigT mStart, matSigT mTarget, bool promos, bool upromo)
bool	matsig_isReachablePawns (matSigT mStart, matSigT mTarget)
matSigT	matsig_Make (const byte *materialCounts)
bool	hpSig_PossibleMatch (uint hpSig, const byte *changeList)
bool	hpSig_Prefix (const byte *changeListA, const byte *changeListB)
uint	hpSig_Final (const byte *changeList)
uint	hpSig_AddPawn (uint hpSig, colorT color, fyleT fyle)
uint	hpSig_ClearPawn (uint hpSig, colorT color, fyleT fyle)
std::pair< uint16_t, uint16_t >	hpSig_make (const pieceT *board)
	Creates a 16-bits bitmap of the missing pawns in the home ranks. More...
bool	hpSig_match (int hpSig, int nMoved, const byte *changeList)

Variables
const matSigT	MASK_BY_PIECE [16]
const uint	SHIFT_BY_PIECE [16]
const matSigT	MATSIG_Empty = 0
const matSigT	MATSIG_StdStart
const uint	HPSIG_Empty = 0x0
const uint	HPSIG_StdStart = 0xFFFF

Macro Definition Documentation

MASK_BB

#define MASK_BB   0x000000C0

Definition at line 56 of file matsig.h.

MASK_BN

#define MASK_BN   0x00000030

Definition at line 55 of file matsig.h.

MASK_BP

#define MASK_BP   0x0000000F

Definition at line 54 of file matsig.h.

MASK_BQ

#define MASK_BQ   0x00000C00

Definition at line 58 of file matsig.h.

MASK_BR

#define MASK_BR   0x00000300

Definition at line 57 of file matsig.h.

MASK_WB

#define MASK_WB   0x000C0000

Definition at line 61 of file matsig.h.

MASK_WN

#define MASK_WN   0x00030000

Definition at line 60 of file matsig.h.

MASK_WP

#define MASK_WP   0x0000F000

Definition at line 59 of file matsig.h.

MASK_WQ

#define MASK_WQ   0x00C00000

Definition at line 63 of file matsig.h.

MASK_WR

#define MASK_WR   0x00300000

Definition at line 62 of file matsig.h.

MATSIG_Count_BB

#define MATSIG_Count_BB

(

x

)

(((x) & MASK_BB) >> SHIFT_BB)

Definition at line 138 of file matsig.h.

MATSIG_Count_BN

#define MATSIG_Count_BN

(

x

)

(((x) & MASK_BN) >> SHIFT_BN)

Definition at line 140 of file matsig.h.

MATSIG_Count_BP

#define MATSIG_Count_BP

(

x

)

(((x) & MASK_BP) >> SHIFT_BP)

Definition at line 142 of file matsig.h.

MATSIG_Count_BQ

#define MATSIG_Count_BQ

(

x

)

(((x) & MASK_BQ) >> SHIFT_BQ)

Definition at line 134 of file matsig.h.

MATSIG_Count_BR

#define MATSIG_Count_BR

(

x

)

(((x) & MASK_BR) >> SHIFT_BR)

Definition at line 136 of file matsig.h.

MATSIG_Count_WB

#define MATSIG_Count_WB

(

x

)

(((x) & MASK_WB) >> SHIFT_WB)

Definition at line 137 of file matsig.h.

MATSIG_Count_WN

#define MATSIG_Count_WN

(

x

)

(((x) & MASK_WN) >> SHIFT_WN)

Definition at line 139 of file matsig.h.

MATSIG_Count_WP

#define MATSIG_Count_WP

(

x

)

(((x) & MASK_WP) >> SHIFT_WP)

Definition at line 141 of file matsig.h.

MATSIG_Count_WQ

#define MATSIG_Count_WQ

(

x

)

(((x) & MASK_WQ) >> SHIFT_WQ)

Definition at line 133 of file matsig.h.

MATSIG_Count_WR

#define MATSIG_Count_WR

(

x

)

(((x) & MASK_WR) >> SHIFT_WR)

Definition at line 135 of file matsig.h.

MATSIG_FlipColor

#define MATSIG_FlipColor

(

x

)

((x) >> 12) | (((x) & 0x00000FFF) << 12)

Definition at line 108 of file matsig.h.

MATSIG_Has_BB

#define MATSIG_Has_BB

(

x

)

((x) & MASK_BB)

Definition at line 118 of file matsig.h.

MATSIG_Has_BN

#define MATSIG_Has_BN

(

x

)

((x) & MASK_BN)

Definition at line 120 of file matsig.h.

MATSIG_Has_BP

#define MATSIG_Has_BP

(

x

)

((x) & MASK_BP)

Definition at line 122 of file matsig.h.

MATSIG_Has_BQ

#define MATSIG_Has_BQ

(

x

)

((x) & MASK_BQ)

Definition at line 114 of file matsig.h.

MATSIG_Has_BR

#define MATSIG_Has_BR

(

x

)

((x) & MASK_BR)

Definition at line 116 of file matsig.h.

MATSIG_Has_WB

#define MATSIG_Has_WB

(

x

)

((x) & MASK_WB)

Definition at line 117 of file matsig.h.

MATSIG_Has_WN

#define MATSIG_Has_WN

(

x

)

((x) & MASK_WN)

Definition at line 119 of file matsig.h.

MATSIG_Has_WP

#define MATSIG_Has_WP

(

x

)

((x) & MASK_WP)

Definition at line 121 of file matsig.h.

MATSIG_Has_WQ

#define MATSIG_Has_WQ

(

x

)

((x) & MASK_WQ)

Definition at line 113 of file matsig.h.

MATSIG_Has_WR

#define MATSIG_Has_WR

(

x

)

((x) & MASK_WR)

Definition at line 115 of file matsig.h.

MATSIG_HasBishops

#define MATSIG_HasBishops

(

x

)

((x) & (MASK_WB | MASK_BB))

Definition at line 126 of file matsig.h.

MATSIG_HasKnights

#define MATSIG_HasKnights

(

x

)

((x) & (MASK_WN | MASK_BN))

Definition at line 127 of file matsig.h.

MATSIG_HasPawns

#define MATSIG_HasPawns

(

x

)

((x) & (MASK_WP | MASK_BP))

Definition at line 128 of file matsig.h.

MATSIG_HasQueens

#define MATSIG_HasQueens

(

x

)

((x) & (MASK_WQ | MASK_BQ))

Definition at line 124 of file matsig.h.

MATSIG_HasRooks

#define MATSIG_HasRooks

(

x

)

((x) & (MASK_WR | MASK_BR))

Definition at line 125 of file matsig.h.

SHIFT_BB

#define SHIFT_BB   6

Definition at line 42 of file matsig.h.

SHIFT_BN

#define SHIFT_BN   4

Definition at line 41 of file matsig.h.

SHIFT_BP

#define SHIFT_BP   0

Definition at line 40 of file matsig.h.

SHIFT_BQ

#define SHIFT_BQ   10

Definition at line 44 of file matsig.h.

SHIFT_BR

#define SHIFT_BR   8

Definition at line 43 of file matsig.h.

SHIFT_WB

#define SHIFT_WB   18

Definition at line 47 of file matsig.h.

SHIFT_WN

#define SHIFT_WN   16

Definition at line 46 of file matsig.h.

SHIFT_WP

#define SHIFT_WP   12

Definition at line 45 of file matsig.h.

SHIFT_WQ

#define SHIFT_WQ   22

Definition at line 49 of file matsig.h.

SHIFT_WR

#define SHIFT_WR   20

Definition at line 48 of file matsig.h.

Typedef Documentation

matSigT

typedef uint32_t matSigT

Definition at line 25 of file matsig.h.

Function Documentation

hpSig_AddPawn()

uint hpSig_AddPawn ( uint  hpSig, colorT  color, fyleT  fyle  )

inline

Definition at line 271 of file matsig.h.

hpSig_ClearPawn()

uint hpSig_ClearPawn ( uint  hpSig, colorT  color, fyleT  fyle  )

inline

Definition at line 282 of file matsig.h.

hpSig_Final()

uint hpSig_Final

(

const byte *

changeList

)

Definition at line 177 of file matsig.cpp.

hpSig_make()

std::pair<uint16_t, uint16_t> hpSig_make ( const pieceT *  board )

inline

Creates a 16-bits bitmap of the missing pawns in the home ranks.

Used to speed up the searches of positions with the same pawn structure.

Returns

a std::pair containing the bitmap and the number of moved pawns.

Definition at line 298 of file matsig.h.

hpSig_match()

bool hpSig_match ( int  hpSig, int  nMoved, const byte *  changeList  )

inline

Definition at line 325 of file matsig.h.

hpSig_PossibleMatch()

bool hpSig_PossibleMatch	(	uint	hpSig,
		const byte *	changeList
	)

Definition at line 97 of file matsig.cpp.

hpSig_Prefix()

bool hpSig_Prefix	(	const byte *	changeListA,
		const byte *	changeListB
	)

Definition at line 140 of file matsig.cpp.

matsig_getCount()

uint matsig_getCount ( matSigT  m, pieceT  p  )

inline

Definition at line 149 of file matsig.h.

matsig_isReachable()

bool matsig_isReachable	(	matSigT	mStart,
		matSigT	mTarget,
		bool	promos,
		bool	upromo
	)

Definition at line 56 of file matsig.cpp.

matsig_isReachablePawns()

bool matsig_isReachablePawns ( matSigT  mStart, matSigT  mTarget  )

inline

Definition at line 213 of file matsig.h.

matsig_Make()

matSigT matsig_Make ( const byte *  materialCounts )

inline

Definition at line 225 of file matsig.h.

matsig_makeString()

std::string matsig_makeString

(

matSigT

matsig

)

Definition at line 27 of file matsig.cpp.

matsig_setCount()

matSigT matsig_setCount ( matSigT  m, pieceT  p, uint  count  )

inline

Definition at line 159 of file matsig.h.

Variable Documentation

HPSIG_Empty

const uint HPSIG_Empty = 0x0

Definition at line 246 of file matsig.h.

HPSIG_StdStart

const uint HPSIG_StdStart = 0xFFFF

Definition at line 249 of file matsig.h.

MASK_BY_PIECE

const matSigT MASK_BY_PIECE[16]

Initial value:

= {
    0,        
    0,        
    MASK_WQ,  
    MASK_WR,  
    MASK_WB,  
    MASK_WN,  
    MASK_WP,  
    0, 0,     
    0,        
    MASK_BQ,  
    MASK_BR,  
    MASK_BB,  
    MASK_BN,  
    MASK_BP,  
    0         
}

Definition at line 70 of file matsig.h.

MATSIG_Empty

const matSigT MATSIG_Empty = 0

Definition at line 176 of file matsig.h.

MATSIG_StdStart

const matSigT MATSIG_StdStart

Initial value:

=
   ((1 << SHIFT_WQ) | (1 << SHIFT_BQ) | (2 << SHIFT_WR) | (2 << SHIFT_BR) |
    (2 << SHIFT_WB) | (2 << SHIFT_BB) | (2 << SHIFT_WN) | (2 << SHIFT_BN) |
    (8 << SHIFT_WP) | (8 << SHIFT_BP))

Definition at line 178 of file matsig.h.

SHIFT_BY_PIECE

const uint SHIFT_BY_PIECE[16]

Initial value:

= {
    0, 0,      
    SHIFT_WQ,  
    SHIFT_WR,  
    SHIFT_WB,  
    SHIFT_WN,  
    SHIFT_WP,  
    0, 0, 0,   
    SHIFT_BQ,  
    SHIFT_BR,  
    SHIFT_BB,  
    SHIFT_BN,  
    SHIFT_BP,  
    0          
}

Definition at line 89 of file matsig.h.