4 * Main header file for GNU Shogi.
6 * ----------------------------------------------------------------------
8 * Copyright (c) 2012 Free Software Foundation
10 * GNU SHOGI is based on GNU CHESS
12 * This file is part of GNU SHOGI.
14 * GNU Shogi is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the
16 * Free Software Foundation; either version 3 of the License,
17 * or (at your option) any later version.
19 * GNU Shogi is distributed in the hope that it will be useful, but WITHOUT
20 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
21 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
24 * You should have received a copy of the GNU General Public License along
25 * with GNU Shogi; see the file COPYING. If not, see
26 * <http://www.gnu.org/licenses/>.
27 * ----------------------------------------------------------------------
31 /* Hack for anal-retentive ANSI-compliance if desired: */
34 /* FIXME: this file needs to be reorganized in some rational manner. */
39 #include "config.h" /* Portability #defines. */
41 #include "opts.h" /* Various option-setting #defines. */
47 typedef enum { DISPLAY_RAW, DISPLAY_CURSES, DISPLAY_X } display_t;
48 extern display_t display_type;
50 #define XSHOGI (display_type == DISPLAY_X)
51 #define NOT_CURSES ((display_type == DISPLAY_X) \
52 || (display_type == DISPLAY_RAW))
55 /* Miscellaneous globals. */
57 extern short hard_time_limit; /* If you exceed time limit, you lose. */
58 extern short barebones; /* Don't print of stats for x interface. */
59 extern short nolist; /* Don't list game after exit. */
63 * Options for various compilers/OSs.
67 * type small_short must cover -128 .. 127. In case of trouble,
68 * try commenting out "signed". If this doesn't help, use short.
71 #define small_short signed char
72 #define small_ushort unsigned char
75 typedef small_short BYTE;
76 typedef small_ushort UBYTE;
78 typedef unsigned short USHORT;
80 typedef unsigned int UINT;
82 typedef unsigned long ULONG;
85 #if !defined(HAVE_MEMCPY) && !defined(HAVE_BCOPY)
86 # define array_copy(src, dst, len) \
89 char *psrc = (char *)src, *pdst = (char *)dst; \
90 for (i = len; i; pdst[--i] = psrc[i]); \
92 # define array_zero(dst, len) \
95 char *pdst = (char *)dst; \
96 for (i = len; i; pdst[--i] = 0); \
98 #elif !defined(HAVE_MEMCPY) /* BSD and derivatives */
99 # define array_copy(src, dst, len) bcopy(src, dst, len)
100 # define array_zero(dst, len) bzero(dst, len)
101 #else /* System V and derivatives */
102 # define array_copy(src, dst, len) memcpy(dst, src, len)
103 # define array_zero(dst, len) memset(dst, 0, len)
113 * Standard header files.
122 #include <sys/param.h>
123 #include <sys/types.h>
124 #include <sys/times.h>
125 #include <sys/ioctl.h>
128 #if TIME_WITH_SYS_TIME
129 # include <sys/time.h>
133 # include <sys/time.h>
142 extern char *binbookfile;
145 extern char *bookfile;
149 extern void movealgbr(short m, char *s);
156 #define MAX_CAPTURED 19
157 #define NO_PTYPE_PIECES 15
160 #define NO_SQUARES (NO_COLS*NO_ROWS)
162 #define ROW_NAME(n) ('a' + NO_ROWS - 1 - n)
163 #define COL_NAME(n) ('1' + NO_COLS - 1 - n)
165 #if defined HASHFILE || defined CACHE
166 # define PTBLBDSIZE (NO_SQUARES + NO_PIECES)
169 #include "dspwrappers.h" /* Display functions. */
172 #define SCORE_LIMIT 12000
174 /* masks into upper 16 bits of attacks array */
175 /* observe order of relative piece values */
176 #define CNT_MASK 0x000000FF
177 #define ctlP 0x00200000
178 #define ctlPp 0x00100000
179 #define ctlL 0x00080000
180 #define ctlN 0x00040000
181 #define ctlLp 0x00020000
182 #define ctlNp 0x00010000
183 #define ctlS 0x00008000
184 #define ctlSp 0x00004000
185 #define ctlG 0x00002000
186 #define ctlB 0x00001000
187 #define ctlBp 0x00000800
188 #define ctlR 0x00000400
189 #define ctlRp 0x00000200
190 #define ctlK 0x00000100
192 /* attack functions */
193 #define Pattack(c, u) (attack[c][u] > ctlP)
194 #define Anyattack(c, u) (attack[c][u] != 0)
196 /* hashtable flags */
197 #define truescore 0x0001
198 #define lowerbound 0x0002
199 #define upperbound 0x0004
200 #define kingcastle 0x0008
201 #define queencastle 0x0010
202 #define evalflag 0x0020
205 #define BlackKing PieceList[black][0]
206 #define WhiteKing PieceList[white][0]
207 #define OwnKing PieceList[c1][0]
208 #define EnemyKing PieceList[c2][0]
211 /* board properties */
212 #define InBlackCamp(sq) ((sq) < 27)
213 #define InWhiteCamp(sq) ((sq) > 53)
214 #define InPromotionZone(side, sq) \
215 (((side) == black) ? InWhiteCamp(sq) : InBlackCamp(sq))
218 #define OPENING_HINT 0x141d /* P7g-7f (20->29) */
234 /* piece code defines */
273 #define pmask 0x000f /* 15 */
274 #define promote 0x0010 /* 16 */
275 #define dropmask 0x0020 /* 32 */
276 #define exact 0x0040 /* 64 */
277 #define tesuji 0x0080 /* 128 */
278 #define check 0x0100 /* 256 */
279 #define capture 0x0200 /* 512 */
280 #define draw 0x0400 /* 1024 */
281 #define stupid 0x0800 /* 2048 */
282 #define questionable 0x1000 /* 4096 */
283 #define kingattack 0x2000 /* 8192 */
284 #define book 0x4000 /* 16384 */
286 /* move quality flags */
287 #define goodmove tesuji
288 #define badmove stupid
290 #define difficult questionable
299 /***************** Table limits ********************************************/
302 * ttblsz must be a power of 2. Setting ttblsz 0 removes the transposition
308 #elif defined SMALL_MEMORY
309 # if defined SAVE_SSCORE
310 # define vttblsz (1 << 12)
312 # if defined EXTRA_2MB
313 # define vttblsz (1 << 12)
315 # define vttblsz (1 << 10)
319 # define vttblsz (100001)
322 #if defined SMALL_MEMORY
323 # define MINTTABLE (0)
325 # define MINTTABLE (8000) /* min ttable size -1 */
328 #define ttblsz vttblsz
330 #if defined SMALL_MEMORY
331 # if !defined SAVE_SSCORE
332 # define TREE 1500 /* max number of tree entries */
334 # define TREE 2500 /* max number of tree entries */
337 # define TREE 4000 /* max number of tree entries */
340 #define MAXDEPTH 40 /* max depth a search can be carried */
341 #define MINDEPTH 2 /* min search depth =1 (no hint), >1 hint */
342 #define MAXMOVES 300 /* max number of half moves in a game */
343 #define CPSIZE 235 /* size of lang file max */
345 #if defined SMALL_MEMORY
346 # if defined SAVE_SSCORE
347 # define ETABLE (1 << 10) /* static eval cache */
349 # if defined EXTRA_2MB
350 # define ETABLE (1 << 10) /* static eval cache */
352 # define ETABLE (1 << 8) /* static eval cache */
356 # define ETABLE (10001) /* static eval cache */
359 /***************** tuning paramaters *******************/
361 #if defined VERY_SLOW_CPU
362 # define MINRESPONSETIME 300
363 #elif defined SLOW_CPU
364 # define MINRESPONSETIME 200
366 # define MINRESPONSETIME 100 /* 1 s */
371 #define CHKDEPTH 1 /* always look forward CHKDEPTH
372 * half-moves if in check */
374 #if defined SLOW_CPU || defined VERY_SLOW_CPU
375 # define DEPTHBEYOND 7 /* Max to go beyond Sdepth */
377 # define DEPTHBEYOND 11 /* Max to go beyond Sdepth */
380 #define HASHDEPTH 4 /* depth above which to use HashFile */
381 #define HASHMOVELIMIT 40 /* Use HashFile only for this many moves */
382 #define PTVALUE 0 /* material value below which pawn threats at
384 #define ZDEPTH 3 /* depth beyond which to check
385 * ZDELTA for extra time */
386 #define ZDELTA 10 /* score delta per ply to cause
387 * extra time to be given */
390 /* about 1/2 second worth of nodes for your machine */
391 #if defined VERY_SLOW_CPU
392 /* check the time every ZNODES positions */
393 # define ZNODES (flag.tsume ? 20 : 50)
394 #elif defined SLOW_CPU
395 # define ZNODES (flag.tsume ? 40 : 100)
397 # define ZNODES (flag.tsume ? 400 : 1000)
400 #define MAXTCCOUNTX 10 /* max number of time clicks
401 * per search to complete ply */
402 #define MAXTCCOUNTR 4 /* max number of time clicks
403 * per search extensions*/
404 #define SCORESPLIM 8 /* Score space doesn't apply after this stage */
405 #define SDEPTHLIM (Sdepth + 1)
406 #define HISTORYLIM 4096 /* Max value of history killer */
409 # if defined SMALL_MEMORY
410 # define HISTORY_MASK 0x8000 /* mask to MSB of history index */
411 # define HISTORY_SIZE 0x10000 /* size of history table */
413 # define HISTORY_MASK (1 << 15) /* mask to MSB of history index */
414 # define HISTORY_SIZE (1 << 16) /* size of history table */
417 /* smaller history table, but dangerous because of collisions */
418 # define HISTORY_MASK 0x3fff /* mask to significant bits
419 * of history index */
420 # if defined SMALL_MEMORY
421 # define HISTORY_SIZE 0x4000 /* size of history table */
423 # define HISTORY_SIZE (1 << 14) /* size of history table */
427 #define sizeof_history (sizeof(unsigned short) * (size_t)HISTORY_SIZE)
430 /* Map from.to (8bit.8bit) to from.to (0.7bit.8bit) */
431 # define khmove(mv) (mv & 0x7fff)
432 # define hmove(mv) ((mv & 0x7fff) ^ 0x5555)
434 /* Map from.to (8bit.8bit) to from.to (00.7bit.7bit) */
435 /* Swap bits of ToSquare in case of promotions, hoping that
436 no catastrophic collision occurs. */
437 # define khmove(mv) (((mv & 0x7f00) >> 1) | \
438 ((mv & 0x0080) ? ((mv & 0x007f) ^ 0x007f) : (mv & 0x007f)))
439 # define hmove(mv) (khmove(mv) ^ 0x2aaa)
442 /* mask color to 15th bit */
444 # define hindex(c, mv) ((c ? HISTORY_MASK : 0) | hmove(mv))
446 /* for white, swap bits, hoping that no catastrophic collision occurs. */
447 # define hindex(c, mv) (c ? ((~hmove(mv)) & HISTORY_MASK) : hmove(mv))
450 #define EWNDW 10 /* Eval window to force position scoring at depth
451 * greater than (Sdepth + 2) */
452 #define WAWNDW 90 /* alpha window when computer black */
453 #define WBWNDW 90 /* beta window when computer black */
454 #define BAWNDW 90 /* alpha window when computer white */
455 #define BBWNDW 90 /* beta window when computer white */
456 #define BXWNDW 90 /* window to force position scoring at lower */
457 #define WXWNDW 90 /* window to force position scoring at lower */
459 #define DITHER 5 /* max amount random can alter a pos value */
460 #define LBONUS 1 /* points per stage value of L increases */
461 #define BBONUS 2 /* points per stage value of B increases */
462 #define RBONUS 2 /* points per stage value of R increases */
464 #define QUESTIONABLE (valueK) /* Penalty for questionable moves. */
470 #define STUPID (valueR << 1) /* Penalty for stupid moves. */
472 #define KINGPOSLIMIT (-1) /* King positional scoring limit */
473 #define KINGSAFETY 32
474 #define MAXrehash (7)
476 /******* parameters for Opening Book ****************/
478 #define BOOKSIZE 8000 /* Number of unique position/move
479 * combinations allowed */
480 #define BOOKMAXPLY 40 /* Max plys to keep in book database */
481 #define BOOKFAIL (BOOKMAXPLY / 2) /* if no book move found for BOOKFAIL
482 * turns stop using book */
483 #define BOOKPOCKET 64
484 #define BOOKRAND 1000 /* used to select an opening move
486 #define BOOKENDPCT 950 /* 5 % chance a BOOKEND will stop the book */
487 #define DONTUSE -32760 /* flag move as don't use */
488 #define ILLEGAL_TRAPPED -32761 /* flag move as illegal:
489 * no move from this square */
490 #define ILLEGAL_DOUBLED -32762 /* flag move as illegal:
491 * two pawns on one column */
492 #define ILLEGAL_MATE -32763 /* flag move as illegal:
493 * pawn drop with mate */
495 /*****************************************************/
499 unsigned long key, bd;
504 unsigned long hashbd;
506 unsigned char depth; /* unsigned char saves some space */
513 unsigned char bd[PTBLBDSIZE];
514 #endif /* HASHTEST */
517 #if defined HASHFILE || defined CACHE
520 unsigned long ehashbd;
522 #if !defined SAVE_SSCORE
523 short sscore[NO_SQUARES];
528 unsigned char bd[PTBLBDSIZE];
529 #endif /* CACHETEST */
533 extern short use_etable;
534 typedef struct etable etable_field[ETABLE];
535 extern etable_field *etab[2];
539 * CHECKME! Is this valid?
541 * persistent transposition table. By default, the size is (1 << vfilesz).
542 * If you change the size, be sure to run gnushogi -c [vfilesz]
543 * before anything else.
548 #if defined SMALL_MEMORY
556 unsigned char bd[PTBLBDSIZE];
557 unsigned char f, t, flags, depth, sh, sl;
560 #endif /* HASHFILE */
566 short score, reply, width;
568 unsigned short flags;
574 unsigned short gmove; /* this move */
575 short score; /* score after this move */
576 short depth; /* search depth this move */
577 long time; /* search time this move */
578 short fpiece; /* moved or dropped piece */
579 short piece; /* piece captured */
580 short color; /* color */
581 short flags; /* move flags capture, promote, castle */
582 short Game50; /* flag for repetition */
583 long nodes; /* nodes searched for this move */
584 unsigned long hashkey, hashbd; /* board key before this move */
588 struct TimeControlRec
597 short mate; /* the game is over */
598 short post; /* show principle variation */
599 short quit; /* quit/exit */
600 short regularstart; /* did the game start from standard
602 short reverse; /* reverse board display */
603 short bothsides; /* computer plays both sides */
604 short hash; /* enable/disable transposition table */
605 short force; /* enter moves */
606 short easy; /* disable thinking on opponents time */
607 short beep; /* enable/disable beep */
608 short timeout; /* time to make a move */
609 short musttimeout; /* time to make a move */
610 short back; /* time to make a move */
611 short rcptr; /* enable/disable recapture heuristics */
612 short rv; /* reverse video */
613 short stars; /* add stars to uxdsp screen */
614 short coords; /* add coords to visual screen */
616 short material; /* draw on lack of material */
617 short illegal; /* illegal position */
618 short onemove; /* timing is onemove */
619 short gamein; /* timing is gamein */
620 short tsume; /* first consider checks */
623 extern FILE *debugfile;
626 #define EVALFILE "/tmp/EVAL"
629 extern FILE *debug_eval_file;
630 extern short debug_moves;
634 extern short use_history;
635 extern unsigned short *history;
640 extern char ColorStr[2][10];
642 extern char mvstr[4][6];
643 extern unsigned short MV[MAXDEPTH];
645 extern int mycnt1, mycnt2;
647 extern struct leaf rootnode;
648 extern struct leaf *Tree;
649 extern struct leaf *root;
650 extern char savefile[], listfile[];
651 extern short TrPnt[];
652 extern small_short board[], color[];
653 extern const small_short sweep[NO_PIECES];
654 extern small_short PieceList[2][NO_SQUARES], PawnCnt[2][NO_COLS];
655 extern small_short Captured[2][NO_PIECES];
658 # define ClearCaptured() \
660 short piece, color; \
661 for (color = black; color <= white; color++) \
662 for (piece = 0; piece < NO_PIECES; piece++) \
663 Captured[color][piece] = 0; \
666 # define ClearCaptured() \
667 memset((char *)Captured, 0, (unsigned long)sizeof(Captured))
668 #endif /* HAVE_MEMSET */
670 extern small_short Mvboard[];
672 #if !defined SAVE_SVALUE
673 extern short svalue[NO_SQUARES];
676 extern short pscore[2]; /* eval.c */
677 extern int EADD; /* eval.c */
678 extern int EGET; /* eval.c */
679 extern struct flags flag;
680 extern short opponent, computer, INCscore;
681 extern short WAwindow, BAwindow, WBwindow, BBwindow;
682 extern short dither, player;
683 extern short xwndw, contempt;
684 extern long ResponseTime, ExtraTime, TCleft,
685 MaxResponseTime, et, et0, time0, ft;
688 #ifdef INTERRUPT_TEST
689 extern long itime0, it;
692 extern long reminus, replus;
693 extern long GenCnt, NodeCnt, ETnodes, EvalNodes, HashAdd, HashCnt,
694 HashCol, THashCol, FHashCnt, FHashAdd;
695 extern short HashDepth, HashMoveLimit;
696 extern struct GameRec *GameList;
697 extern short GameCnt, Game50;
698 extern short Sdepth, MaxSearchDepth;
700 extern struct TimeControlRec TimeControl;
702 extern short TCflag, TCmoves, TCminutes, TCseconds, OperatorTime;
703 extern int timecomp[MINGAMEIN], timeopp[MINGAMEIN];
704 extern int compptr, oppptr;
705 extern short XCmore, XCmoves[], XCminutes[], XCseconds[], XC;
706 extern const short otherside[];
707 extern const small_short Stboard[];
708 extern const small_short Stcolor[];
709 extern unsigned short hint;
711 extern short stage, stage2;
713 #define in_opening_stage (!flag.tsume && (stage < 33))
714 #define in_middlegame_stage (!flag.tsume && (stage >= 33) && (stage <= 66))
715 #define in_endgame_stage (flag.tsume || (stage > 66))
717 extern short ahead, hash;
718 extern short balance[2];
719 extern small_short ChkFlag[], CptrFlag[], TesujiFlag[];
720 extern short Pscore[], Tscore[];
721 extern /*unsigned*/ short rehash; /* -1 is used as a flag --tpm */
722 extern char version[], patchlevel[];
723 extern unsigned int ttbllimit;
724 extern unsigned int TTadd;
725 extern unsigned int ttblsize;
726 extern short mtl[], hung[];
727 extern small_short Pindex[];
728 extern small_short PieceCnt[];
729 extern short FROMsquare, TOsquare;
730 extern small_short HasPiece[2][NO_PIECES];
731 extern const short kingP[];
732 extern unsigned short killr0[], killr1[];
733 extern unsigned short killr2[], killr3[];
734 extern unsigned short PrVar[MAXDEPTH];
735 extern unsigned short PV, SwagHt, Swag0, Swag1, Swag2, Swag3, Swag4, sidebit;
736 extern short mtl[2], pmtl[2], hung[2];
737 extern const small_short relative_value[];
738 extern const long control[];
739 extern small_short diagonal(short delta);
740 extern const small_short promoted[NO_PIECES], unpromoted[NO_PIECES];
741 extern const small_short is_promoted[NO_PIECES];
743 typedef unsigned char next_array[NO_SQUARES][NO_SQUARES];
744 typedef small_short distdata_array[NO_SQUARES][NO_SQUARES];
746 extern const small_short inunmap[NO_SQUARES];
747 extern const small_short nunmap[(NO_COLS + 2)*(NO_ROWS + 4)];
749 #if defined SAVE_NEXTPOS
750 extern const small_short direc[NO_PTYPE_PIECES][8];
751 extern short first_direction(short ptyp, short *d, short sq);
752 extern short next_direction(short ptyp, short *d, short sq);
753 extern short next_position(short ptyp, short *d, short sq, short u);
755 extern short use_nextpos;
756 extern next_array *nextpos[NO_PTYPE_PIECES];
757 extern next_array *nextdir[NO_PTYPE_PIECES];
760 extern value_array *value;
761 extern fscore_array *fscore;
763 #ifndef SAVE_DISTDATA
764 extern short use_distdata;
765 extern distdata_array *distdata;
768 #ifndef SAVE_PTYPE_DISTDATA
769 extern short use_ptype_distdata;
770 extern distdata_array *ptype_distdata[NO_PTYPE_PIECES];
773 extern const small_short ptype[2][NO_PIECES];
775 extern long filesz, hashmask, hashbase;
776 extern FILE *hashfile;
777 extern unsigned int starttime;
780 typedef small_short Mpiece_array[2][NO_SQUARES];
781 extern Mpiece_array *Mpiece[NO_PIECES];
782 extern short ADVNCM[NO_PIECES];
784 #define computed_distance(a, b) \
785 ((abs(column(a) - column(b)) > abs(row(a) - row(b))) \
786 ? abs(column(a) - column(b)) : abs(row(a) - row(b)))
788 extern short distance(short a, short b);
789 extern short ptype_distance(short ptyp, short f, short t);
790 extern short piece_distance(short side, short piece, short f, short t);
797 #define STATIC_ROOK 'S'
798 #define RANGING_ROOK 'R'
800 extern char GameType[2];
801 void ShowGameType(void);
803 extern unsigned short bookmaxply;
804 extern unsigned int bookcount;
805 extern unsigned int booksize;
806 extern unsigned long hashkey, hashbd;
808 typedef struct hashval hashcode_array[2][NO_PIECES][NO_SQUARES];
809 typedef struct hashval drop_hashcode_array[2][NO_PIECES][NO_SQUARES];
811 extern hashcode_array *hashcode;
812 extern drop_hashcode_array *drop_hashcode;
815 #ifdef QUIETBACKGROUND
816 extern short background;
817 #endif /* QUIETBACKGROUND */
820 extern short use_ttable;
821 extern struct hashentry *ttable[2];
825 * hashbd contains a 32 bit "signature" of the board position. hashkey
826 * contains a 16 bit code used to address the hash table. When a move is
827 * made, XOR'ing the hashcode of moved piece on the from and to squares with
828 * the hashbd and hashkey values keeps things current.
831 #define UpdateHashbd(side, piece, f, t) \
835 hashbd ^= (*hashcode)[side][piece][f].bd; \
836 hashkey ^= (*hashcode)[side][piece][f].key; \
841 hashbd ^= (*hashcode)[side][piece][t].bd; \
842 hashkey ^= (*hashcode)[side][piece][t].key; \
846 #define UpdateDropHashbd(side, piece, count) \
848 hashbd ^= (*drop_hashcode)[side][piece][count].bd; \
849 hashkey ^= (*drop_hashcode)[side][piece][count].key; \
853 extern short rpthash[2][256];
856 #define row(a) ((a) / NO_COLS)
857 #define column(a) ((a) % NO_COLS)
858 #define locn(a, b) (((a) * NO_COLS) + b)
860 /* init external functions */
861 extern void InitConst(char *lang); /* init.c */
862 extern int Initialize_data(void); /* init.c */
863 extern void Free_data(void); /* init.c */
864 extern int Lock_data(void); /* init.c */
865 extern void Unlock_data(void); /* init.c */
866 extern void Initialize_dist(void); /* init.c */
867 extern void Initialize_eval(void); /* eval.c */
868 extern void NewGame(void);
869 extern int parse(FILE * fd, unsigned short *mv,
870 short side, char *opening);
871 extern void GetOpenings(void);
872 extern int OpeningBook(unsigned short *hint, short side);
876 REMOVE_PIECE = 1, ADD_PIECE
877 } UpdatePieceList_mode;
880 UpdatePieceList(short side, short sq, UpdatePieceList_mode iop);
884 FOREGROUND_MODE = 1, BACKGROUND_MODE
888 SelectMove(short side, SelectMove_mode iop);
896 unsigned short *bstline,
900 void PutInEETable(short side, int score);
901 int CheckEETable(short side);
902 int ProbeEETable(short side, short *score);
907 ProbeTTable(short side,
915 PutInTTable(short side,
923 extern void ZeroTTable(void);
924 extern void ZeroRPT(void);
925 extern void Initialize_ttable(void);
926 extern unsigned int urand(void);
929 extern void gsrand(unsigned int);
932 ProbeFTable(short side,
940 PutInFTable(short side,
949 # endif /* HASHFILE */
952 #if !defined SAVE_NEXTPOS
953 extern void Initialize_moves(void);
956 extern short generate_move_flags;
958 extern void MoveList(short side, short ply,
959 short in_check, short blockable);
960 extern void CaptureList(short side, short ply,
961 short in_check, short blockable);
965 SqAttacked(short square, short side, short *blockable);
977 UnmakeMove(short side,
985 InitializeStats(void);
996 extern short ScorePosition(short side);
997 extern void ExaminePosition(short side);
998 extern short ScorePatternDistance(short side);
999 extern void DetermineStage(short side);
1000 extern void UpdateWeights(short side);
1001 extern int InitMain(void);
1002 extern void ExitMain(void);
1003 extern void Initialize(void);
1004 extern void InputCommand(char *command);
1005 extern void ExitShogi(void);
1006 extern void ClearScreen(void);
1007 extern void SetTimeControl(void);
1008 extern void SelectLevel(char *sx);
1011 UpdateDisplay(short f,
1018 COMPUTE_AND_INIT_MODE = 1, COMPUTE_MODE
1019 #ifdef INTERRUPT_TEST
1020 , INIT_INTERRUPT_MODE, COMPUTE_INTERRUPT_MODE
1024 extern void ElapsedTime(ElapsedTime_mode iop);
1025 extern void SetResponseTime(short side);
1026 extern void CheckForTimeout(int score, int globalscore,
1027 int Jscore, int zwndw);
1028 extern void ShowSidetoMove(void);
1029 extern void ShowResponseTime(void);
1030 extern void ShowPatternCount(short side, short n);
1031 extern void SearchStartStuff(short side);
1032 extern void ShowDepth(char ch);
1033 extern void TerminateSearch(int);
1034 extern void ShowResults(short score, unsigned short *bstline, char ch);
1035 extern void PromptForMove(void);
1036 extern void SetupBoard(void);
1037 extern void algbr(short f, short t, short flag);
1038 extern void OutputMove(void);
1039 extern void ShowCurrentMove(short pnt, short f, short t);
1040 extern void ListGame(void);
1041 extern void ShowMessage(char *s);
1042 extern void ClearScreen(void);
1043 extern void gotoXY(short x, short y);
1044 extern void ClearEoln(void);
1045 extern void DrawPiece(short sq);
1046 extern void UpdateClocks(void);
1047 extern void DoDebug(void);
1048 extern void DoTable(short table[NO_SQUARES]);
1049 extern void ShowPostnValues(void);
1050 extern void ChangeXwindow(void);
1051 extern void SetContempt(void);
1052 extern void ChangeHashDepth(void);
1053 extern void ChangeBetaWindow(void);
1054 extern void GiveHint(void);
1055 extern void ShowPrompt(void);
1056 extern void EditBoard(void);
1057 extern void help(void);
1058 extern void ChangeSearchDepth(void);
1059 extern void skip(void);
1060 extern void skipb(void);
1061 extern void EnPassant(short xside, short f, short t, short iop);
1062 extern void ShowNodeCnt(long NodeCnt);
1063 extern void ShowLine(unsigned short *bstline);
1064 extern int pick(short p1, short p2);
1065 extern short repetition(void);
1066 extern void TimeCalc(void);
1069 DropPossible(short piece, short side, short sq); /* genmoves.c */
1072 IsCheckmate(short side, short in_check,
1073 short blockable); /* genmoves.c */
1078 VERIFY_AND_MAKE_MODE, VERIFY_AND_TRY_MODE, UNMAKE_MODE
1081 extern int VerifyMove(char *s, VerifyMove_mode iop, unsigned short *mv);
1082 extern unsigned short TTage;
1084 #endif /* _GNUSHOGI_H_ */