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
158 #define NO_SQUARES 81
159 #define NO_SQUARES_1 80
163 #if defined HASHFILE || defined CACHE
164 # define PTBLBDSIZE (NO_SQUARES + NO_PIECES)
167 #include "dspwrappers.h" /* Display functions. */
170 #define SCORE_LIMIT 12000
172 /* masks into upper 16 bits of attacks array */
173 /* observe order of relative piece values */
174 #define CNT_MASK 0x000000FF
175 #define ctlP 0x00200000
176 #define ctlPp 0x00100000
177 #define ctlL 0x00080000
178 #define ctlN 0x00040000
179 #define ctlLp 0x00020000
180 #define ctlNp 0x00010000
181 #define ctlS 0x00008000
182 #define ctlSp 0x00004000
183 #define ctlG 0x00002000
184 #define ctlB 0x00001000
185 #define ctlBp 0x00000800
186 #define ctlR 0x00000400
187 #define ctlRp 0x00000200
188 #define ctlK 0x00000100
190 /* attack functions */
191 #define Pattack(c, u) (attack[c][u] > ctlP)
192 #define Anyattack(c, u) (attack[c][u] != 0)
194 /* hashtable flags */
195 #define truescore 0x0001
196 #define lowerbound 0x0002
197 #define upperbound 0x0004
198 #define kingcastle 0x0008
199 #define queencastle 0x0010
200 #define evalflag 0x0020
203 #define BlackKing PieceList[black][0]
204 #define WhiteKing PieceList[white][0]
205 #define OwnKing PieceList[c1][0]
206 #define EnemyKing PieceList[c2][0]
209 /* board properties */
210 #define InBlackCamp(sq) ((sq) < 27)
211 #define InWhiteCamp(sq) ((sq) > 53)
212 #define InPromotionZone(side, sq) \
213 (((side) == black) ? InWhiteCamp(sq) : InBlackCamp(sq))
216 #define OPENING_HINT 0x141d /* P7g-7f (20->29) */
232 /* piece code defines */
271 #define pmask 0x000f /* 15 */
272 #define promote 0x0010 /* 16 */
273 #define dropmask 0x0020 /* 32 */
274 #define exact 0x0040 /* 64 */
275 #define tesuji 0x0080 /* 128 */
276 #define check 0x0100 /* 256 */
277 #define capture 0x0200 /* 512 */
278 #define draw 0x0400 /* 1024 */
279 #define stupid 0x0800 /* 2048 */
280 #define questionable 0x1000 /* 4096 */
281 #define kingattack 0x2000 /* 8192 */
282 #define book 0x4000 /* 16384 */
284 /* move quality flags */
285 #define goodmove tesuji
286 #define badmove stupid
288 #define difficult questionable
297 /***************** Table limits ********************************************/
300 * ttblsz must be a power of 2. Setting ttblsz 0 removes the transposition
306 #elif defined SMALL_MEMORY
307 # if defined SAVE_SSCORE
308 # define vttblsz (1 << 12)
310 # if defined EXTRA_2MB
311 # define vttblsz (1 << 12)
313 # define vttblsz (1 << 10)
317 # define vttblsz (100001)
320 #if defined SMALL_MEMORY
321 # define MINTTABLE (0)
323 # define MINTTABLE (8000) /* min ttable size -1 */
326 #define ttblsz vttblsz
328 #if defined SMALL_MEMORY
329 # if !defined SAVE_SSCORE
330 # define TREE 1500 /* max number of tree entries */
332 # define TREE 2500 /* max number of tree entries */
335 # define TREE 4000 /* max number of tree entries */
338 #define MAXDEPTH 40 /* max depth a search can be carried */
339 #define MINDEPTH 2 /* min search depth =1 (no hint), >1 hint */
340 #define MAXMOVES 300 /* max number of half moves in a game */
341 #define CPSIZE 235 /* size of lang file max */
343 #if defined SMALL_MEMORY
344 # if defined SAVE_SSCORE
345 # define ETABLE (1 << 10) /* static eval cache */
347 # if defined EXTRA_2MB
348 # define ETABLE (1 << 10) /* static eval cache */
350 # define ETABLE (1 << 8) /* static eval cache */
354 # define ETABLE (10001) /* static eval cache */
357 /***************** tuning paramaters *******************/
359 #if defined VERY_SLOW_CPU
360 # define MINRESPONSETIME 300
361 #elif defined SLOW_CPU
362 # define MINRESPONSETIME 200
364 # define MINRESPONSETIME 100 /* 1 s */
369 #define CHKDEPTH 1 /* always look forward CHKDEPTH
370 * half-moves if in check */
372 #if defined SLOW_CPU || defined VERY_SLOW_CPU
373 # define DEPTHBEYOND 7 /* Max to go beyond Sdepth */
375 # define DEPTHBEYOND 11 /* Max to go beyond Sdepth */
378 #define HASHDEPTH 4 /* depth above which to use HashFile */
379 #define HASHMOVELIMIT 40 /* Use HashFile only for this many moves */
380 #define PTVALUE 0 /* material value below which pawn threats at
382 #define ZDEPTH 3 /* depth beyond which to check
383 * ZDELTA for extra time */
384 #define ZDELTA 10 /* score delta per ply to cause
385 * extra time to be given */
388 /* about 1/2 second worth of nodes for your machine */
389 #if defined VERY_SLOW_CPU
390 /* check the time every ZNODES positions */
391 # define ZNODES (flag.tsume ? 20 : 50)
392 #elif defined SLOW_CPU
393 # define ZNODES (flag.tsume ? 40 : 100)
395 # define ZNODES (flag.tsume ? 400 : 1000)
398 #define MAXTCCOUNTX 10 /* max number of time clicks
399 * per search to complete ply */
400 #define MAXTCCOUNTR 4 /* max number of time clicks
401 * per search extensions*/
402 #define SCORESPLIM 8 /* Score space doesn't apply after this stage */
403 #define SDEPTHLIM (Sdepth + 1)
404 #define HISTORYLIM 4096 /* Max value of history killer */
407 # if defined SMALL_MEMORY
408 # define HISTORY_MASK 0x8000 /* mask to MSB of history index */
409 # define HISTORY_SIZE 0x10000 /* size of history table */
411 # define HISTORY_MASK (1 << 15) /* mask to MSB of history index */
412 # define HISTORY_SIZE (1 << 16) /* size of history table */
415 /* smaller history table, but dangerous because of collisions */
416 # define HISTORY_MASK 0x3fff /* mask to significant bits
417 * of history index */
418 # if defined SMALL_MEMORY
419 # define HISTORY_SIZE 0x4000 /* size of history table */
421 # define HISTORY_SIZE (1 << 14) /* size of history table */
425 #define sizeof_history (sizeof(unsigned short) * (size_t)HISTORY_SIZE)
428 /* Map from.to (8bit.8bit) to from.to (0.7bit.8bit) */
429 # define khmove(mv) (mv & 0x7fff)
430 # define hmove(mv) ((mv & 0x7fff) ^ 0x5555)
432 /* Map from.to (8bit.8bit) to from.to (00.7bit.7bit) */
433 /* Swap bits of ToSquare in case of promotions, hoping that
434 no catastrophic collision occurs. */
435 # define khmove(mv) (((mv & 0x7f00) >> 1) | \
436 ((mv & 0x0080) ? ((mv & 0x007f) ^ 0x007f) : (mv & 0x007f)))
437 # define hmove(mv) (khmove(mv) ^ 0x2aaa)
440 /* mask color to 15th bit */
442 # define hindex(c, mv) ((c ? HISTORY_MASK : 0) | hmove(mv))
444 /* for white, swap bits, hoping that no catastrophic collision occurs. */
445 # define hindex(c, mv) (c ? ((~hmove(mv)) & HISTORY_MASK) : hmove(mv))
448 #define EWNDW 10 /* Eval window to force position scoring at depth
449 * greater than (Sdepth + 2) */
450 #define WAWNDW 90 /* alpha window when computer black */
451 #define WBWNDW 90 /* beta window when computer black */
452 #define BAWNDW 90 /* alpha window when computer white */
453 #define BBWNDW 90 /* beta window when computer white */
454 #define BXWNDW 90 /* window to force position scoring at lower */
455 #define WXWNDW 90 /* window to force position scoring at lower */
457 #define DITHER 5 /* max amount random can alter a pos value */
458 #define LBONUS 1 /* points per stage value of L increases */
459 #define BBONUS 2 /* points per stage value of B increases */
460 #define RBONUS 2 /* points per stage value of R increases */
462 #define QUESTIONABLE (valueK) /* Penalty for questionable moves. */
468 #define STUPID (valueR << 1) /* Penalty for stupid moves. */
470 #define KINGPOSLIMIT (-1) /* King positional scoring limit */
471 #define KINGSAFETY 32
472 #define MAXrehash (7)
474 /******* parameters for Opening Book ****************/
476 #define BOOKSIZE 8000 /* Number of unique position/move
477 * combinations allowed */
478 #define BOOKMAXPLY 40 /* Max plys to keep in book database */
479 #define BOOKFAIL (BOOKMAXPLY / 2) /* if no book move found for BOOKFAIL
480 * turns stop using book */
481 #define BOOKPOCKET 64
482 #define BOOKRAND 1000 /* used to select an opening move
484 #define BOOKENDPCT 950 /* 5 % chance a BOOKEND will stop the book */
485 #define DONTUSE -32760 /* flag move as don't use */
486 #define ILLEGAL_TRAPPED -32761 /* flag move as illegal:
487 * no move from this square */
488 #define ILLEGAL_DOUBLED -32762 /* flag move as illegal:
489 * two pawns on one column */
490 #define ILLEGAL_MATE -32763 /* flag move as illegal:
491 * pawn drop with mate */
493 /*****************************************************/
497 unsigned long key, bd;
502 unsigned long hashbd;
504 unsigned char depth; /* unsigned char saves some space */
511 unsigned char bd[PTBLBDSIZE];
512 #endif /* HASHTEST */
515 #if defined HASHFILE || defined CACHE
518 unsigned long ehashbd;
520 #if !defined SAVE_SSCORE
521 short sscore[NO_SQUARES];
526 unsigned char bd[PTBLBDSIZE];
527 #endif /* CACHETEST */
531 extern short use_etable;
532 typedef struct etable etable_field[ETABLE];
533 extern etable_field *etab[2];
537 * CHECKME! Is this valid?
539 * persistent transposition table. By default, the size is (1 << vfilesz).
540 * If you change the size, be sure to run gnushogi -c [vfilesz]
541 * before anything else.
546 #if defined SMALL_MEMORY
554 unsigned char bd[PTBLBDSIZE];
555 unsigned char f, t, flags, depth, sh, sl;
558 #endif /* HASHFILE */
564 short score, reply, width;
566 unsigned short flags;
572 unsigned short gmove; /* this move */
573 short score; /* score after this move */
574 short depth; /* search depth this move */
575 long time; /* search time this move */
576 short fpiece; /* moved or dropped piece */
577 short piece; /* piece captured */
578 short color; /* color */
579 short flags; /* move flags capture, promote, castle */
580 short Game50; /* flag for repetition */
581 long nodes; /* nodes searched for this move */
582 unsigned long hashkey, hashbd; /* board key before this move */
586 struct TimeControlRec
595 short mate; /* the game is over */
596 short post; /* show principle variation */
597 short quit; /* quit/exit */
598 short regularstart; /* did the game start from standard
600 short reverse; /* reverse board display */
601 short bothsides; /* computer plays both sides */
602 short hash; /* enable/disable transposition table */
603 short force; /* enter moves */
604 short easy; /* disable thinking on opponents time */
605 short beep; /* enable/disable beep */
606 short timeout; /* time to make a move */
607 short musttimeout; /* time to make a move */
608 short back; /* time to make a move */
609 short rcptr; /* enable/disable recapture heuristics */
610 short rv; /* reverse video */
611 short stars; /* add stars to uxdsp screen */
612 short coords; /* add coords to visual screen */
614 short material; /* draw on lack of material */
615 short illegal; /* illegal position */
616 short onemove; /* timing is onemove */
617 short gamein; /* timing is gamein */
618 short tsume; /* first consider checks */
621 extern FILE *debugfile;
624 #define EVALFILE "/tmp/EVAL"
627 extern FILE *debug_eval_file;
628 extern short debug_moves;
632 extern short use_history;
633 extern unsigned short *history;
638 extern char ColorStr[2][10];
640 extern char mvstr[4][6];
641 extern unsigned short MV[MAXDEPTH];
643 extern int mycnt1, mycnt2;
645 extern struct leaf rootnode;
646 extern struct leaf *Tree;
647 extern struct leaf *root;
648 extern char savefile[], listfile[];
649 extern short TrPnt[];
650 extern small_short board[], color[];
651 extern const small_short sweep[NO_PIECES];
652 extern small_short PieceList[2][NO_SQUARES], PawnCnt[2][NO_COLS];
653 extern small_short Captured[2][NO_PIECES];
656 # define ClearCaptured() \
658 short piece, color; \
659 for (color = black; color <= white; color++) \
660 for (piece = 0; piece < NO_PIECES; piece++) \
661 Captured[color][piece] = 0; \
664 # define ClearCaptured() \
665 memset((char *)Captured, 0, (unsigned long)sizeof(Captured))
666 #endif /* HAVE_MEMSET */
668 extern small_short Mvboard[];
670 #if !defined SAVE_SVALUE
671 extern short svalue[NO_SQUARES];
674 extern short pscore[2]; /* eval.c */
675 extern int EADD; /* eval.c */
676 extern int EGET; /* eval.c */
677 extern struct flags flag;
678 extern short opponent, computer, INCscore;
679 extern short WAwindow, BAwindow, WBwindow, BBwindow;
680 extern short dither, player;
681 extern short xwndw, contempt;
682 extern long ResponseTime, ExtraTime, TCleft,
683 MaxResponseTime, et, et0, time0, ft;
686 #ifdef INTERRUPT_TEST
687 extern long itime0, it;
690 extern long reminus, replus;
691 extern long GenCnt, NodeCnt, ETnodes, EvalNodes, HashAdd, HashCnt,
692 HashCol, THashCol, FHashCnt, FHashAdd;
693 extern short HashDepth, HashMoveLimit;
694 extern struct GameRec *GameList;
695 extern short GameCnt, Game50;
696 extern short Sdepth, MaxSearchDepth;
698 extern struct TimeControlRec TimeControl;
700 extern short TCflag, TCmoves, TCminutes, TCseconds, OperatorTime;
701 extern int timecomp[MINGAMEIN], timeopp[MINGAMEIN];
702 extern int compptr, oppptr;
703 extern short XCmore, XCmoves[], XCminutes[], XCseconds[], XC;
704 extern const short otherside[];
705 extern const small_short Stboard[];
706 extern const small_short Stcolor[];
707 extern unsigned short hint;
709 extern short stage, stage2;
711 #define in_opening_stage (!flag.tsume && (stage < 33))
712 #define in_middlegame_stage (!flag.tsume && (stage >= 33) && (stage <= 66))
713 #define in_endgame_stage (flag.tsume || (stage > 66))
715 extern short ahead, hash;
716 extern short balance[2];
717 extern small_short ChkFlag[], CptrFlag[], TesujiFlag[];
718 extern short Pscore[], Tscore[];
719 extern /*unsigned*/ short rehash; /* -1 is used as a flag --tpm */
720 extern char version[], patchlevel[];
721 extern unsigned int ttbllimit;
722 extern unsigned int TTadd;
723 extern unsigned int ttblsize;
724 extern short mtl[], hung[];
725 extern small_short Pindex[];
726 extern small_short PieceCnt[];
727 extern short FROMsquare, TOsquare;
728 extern small_short HasPiece[2][NO_PIECES];
729 extern const short kingP[];
730 extern unsigned short killr0[], killr1[];
731 extern unsigned short killr2[], killr3[];
732 extern unsigned short PrVar[MAXDEPTH];
733 extern unsigned short PV, SwagHt, Swag0, Swag1, Swag2, Swag3, Swag4, sidebit;
734 extern short mtl[2], pmtl[2], hung[2];
735 extern const small_short relative_value[];
736 extern const long control[];
737 extern small_short diagonal(short delta);
738 extern const small_short promoted[NO_PIECES], unpromoted[NO_PIECES];
739 extern const small_short is_promoted[NO_PIECES];
741 typedef unsigned char next_array[NO_SQUARES][NO_SQUARES];
742 typedef small_short distdata_array[NO_SQUARES][NO_SQUARES];
744 extern const small_short inunmap[NO_SQUARES];
745 extern const small_short nunmap[(NO_COLS + 2)*(NO_ROWS + 4)];
747 #if defined SAVE_NEXTPOS
748 extern const small_short direc[NO_PTYPE_PIECES][8];
749 extern short first_direction(short ptyp, short *d, short sq);
750 extern short next_direction(short ptyp, short *d, short sq);
751 extern short next_position(short ptyp, short *d, short sq, short u);
753 extern short use_nextpos;
754 extern next_array *nextpos[NO_PTYPE_PIECES];
755 extern next_array *nextdir[NO_PTYPE_PIECES];
758 extern value_array *value;
759 extern fscore_array *fscore;
761 #ifndef SAVE_DISTDATA
762 extern short use_distdata;
763 extern distdata_array *distdata;
766 #ifndef SAVE_PTYPE_DISTDATA
767 extern short use_ptype_distdata;
768 extern distdata_array *ptype_distdata[NO_PTYPE_PIECES];
771 extern const small_short ptype[2][NO_PIECES];
773 extern long filesz, hashmask, hashbase;
774 extern FILE *hashfile;
775 extern unsigned int starttime;
778 typedef small_short Mpiece_array[2][NO_SQUARES];
779 extern Mpiece_array *Mpiece[NO_PIECES];
780 extern short ADVNCM[NO_PIECES];
782 #define computed_distance(a, b) \
783 ((abs(column(a) - column(b)) > abs(row(a) - row(b))) \
784 ? abs(column(a) - column(b)) : abs(row(a) - row(b)))
786 extern short distance(short a, short b);
787 extern short ptype_distance(short ptyp, short f, short t);
788 extern short piece_distance(short side, short piece, short f, short t);
795 #define STATIC_ROOK 'S'
796 #define RANGING_ROOK 'R'
798 extern char GameType[2];
799 void ShowGameType(void);
801 extern unsigned short bookmaxply;
802 extern unsigned int bookcount;
803 extern unsigned int booksize;
804 extern unsigned long hashkey, hashbd;
806 typedef struct hashval hashcode_array[2][NO_PIECES][NO_SQUARES];
807 typedef struct hashval drop_hashcode_array[2][NO_PIECES][NO_SQUARES];
809 extern hashcode_array *hashcode;
810 extern drop_hashcode_array *drop_hashcode;
813 #ifdef QUIETBACKGROUND
814 extern short background;
815 #endif /* QUIETBACKGROUND */
818 extern short use_ttable;
819 extern struct hashentry *ttable[2];
823 * hashbd contains a 32 bit "signature" of the board position. hashkey
824 * contains a 16 bit code used to address the hash table. When a move is
825 * made, XOR'ing the hashcode of moved piece on the from and to squares with
826 * the hashbd and hashkey values keeps things current.
829 #define UpdateHashbd(side, piece, f, t) \
833 hashbd ^= (*hashcode)[side][piece][f].bd; \
834 hashkey ^= (*hashcode)[side][piece][f].key; \
839 hashbd ^= (*hashcode)[side][piece][t].bd; \
840 hashkey ^= (*hashcode)[side][piece][t].key; \
844 #define UpdateDropHashbd(side, piece, count) \
846 hashbd ^= (*drop_hashcode)[side][piece][count].bd; \
847 hashkey ^= (*drop_hashcode)[side][piece][count].key; \
851 extern short rpthash[2][256];
855 * FIXME: these should be more generic instead of using the
859 #define row(a) ((a) / 9)
860 #define column(a) ((a) % 9)
861 #define locn(a, b) (((a) * 9) + b)
863 /* init external functions */
864 extern void InitConst(char *lang); /* init.c */
865 extern int Initialize_data(void); /* init.c */
866 extern void Free_data(void); /* init.c */
867 extern int Lock_data(void); /* init.c */
868 extern void Unlock_data(void); /* init.c */
869 extern void Initialize_dist(void); /* init.c */
870 extern void Initialize_eval(void); /* eval.c */
871 extern void NewGame(void);
872 extern int parse(FILE * fd, unsigned short *mv,
873 short side, char *opening);
874 extern void GetOpenings(void);
875 extern int OpeningBook(unsigned short *hint, short side);
879 REMOVE_PIECE = 1, ADD_PIECE
880 } UpdatePieceList_mode;
883 UpdatePieceList(short side, short sq, UpdatePieceList_mode iop);
887 FOREGROUND_MODE = 1, BACKGROUND_MODE
891 SelectMove(short side, SelectMove_mode iop);
899 unsigned short *bstline,
903 void PutInEETable(short side, int score);
904 int CheckEETable(short side);
905 int ProbeEETable(short side, short *score);
910 ProbeTTable(short side,
918 PutInTTable(short side,
926 extern void ZeroTTable(void);
927 extern void ZeroRPT(void);
928 extern void Initialize_ttable(void);
929 extern unsigned int urand(void);
932 extern void gsrand(unsigned int);
935 ProbeFTable(short side,
943 PutInFTable(short side,
952 # endif /* HASHFILE */
955 #if !defined SAVE_NEXTPOS
956 extern void Initialize_moves(void);
959 extern short generate_move_flags;
961 extern void MoveList(short side, short ply,
962 short in_check, short blockable);
963 extern void CaptureList(short side, short ply,
964 short in_check, short blockable);
968 SqAttacked(short square, short side, short *blockable);
980 UnmakeMove(short side,
988 InitializeStats(void);
999 extern short ScorePosition(short side);
1000 extern void ExaminePosition(short side);
1001 extern short ScorePatternDistance(short side);
1002 extern void DetermineStage(short side);
1003 extern void UpdateWeights(short side);
1004 extern int InitMain(void);
1005 extern void ExitMain(void);
1006 extern void Initialize(void);
1007 extern void InputCommand(char *command);
1008 extern void ExitShogi(void);
1009 extern void ClearScreen(void);
1010 extern void SetTimeControl(void);
1011 extern void SelectLevel(char *sx);
1014 UpdateDisplay(short f,
1021 COMPUTE_AND_INIT_MODE = 1, COMPUTE_MODE
1022 #ifdef INTERRUPT_TEST
1023 , INIT_INTERRUPT_MODE, COMPUTE_INTERRUPT_MODE
1027 extern void ElapsedTime(ElapsedTime_mode iop);
1028 extern void SetResponseTime(short side);
1029 extern void CheckForTimeout(int score, int globalscore,
1030 int Jscore, int zwndw);
1031 extern void ShowSidetoMove(void);
1032 extern void ShowResponseTime(void);
1033 extern void ShowPatternCount(short side, short n);
1034 extern void SearchStartStuff(short side);
1035 extern void ShowDepth(char ch);
1036 extern void TerminateSearch(int);
1037 extern void ShowResults(short score, unsigned short *bstline, char ch);
1038 extern void PromptForMove(void);
1039 extern void SetupBoard(void);
1040 extern void algbr(short f, short t, short flag);
1041 extern void OutputMove(void);
1042 extern void ShowCurrentMove(short pnt, short f, short t);
1043 extern void ListGame(void);
1044 extern void ShowMessage(char *s);
1045 extern void ClearScreen(void);
1046 extern void gotoXY(short x, short y);
1047 extern void ClearEoln(void);
1048 extern void DrawPiece(short sq);
1049 extern void UpdateClocks(void);
1050 extern void DoDebug(void);
1051 extern void DoTable(short table[NO_SQUARES]);
1052 extern void ShowPostnValues(void);
1053 extern void ChangeXwindow(void);
1054 extern void SetContempt(void);
1055 extern void ChangeHashDepth(void);
1056 extern void ChangeBetaWindow(void);
1057 extern void GiveHint(void);
1058 extern void ShowPrompt(void);
1059 extern void EditBoard(void);
1060 extern void help(void);
1061 extern void ChangeSearchDepth(void);
1062 extern void skip(void);
1063 extern void skipb(void);
1064 extern void EnPassant(short xside, short f, short t, short iop);
1065 extern void ShowNodeCnt(long NodeCnt);
1066 extern void ShowLine(unsigned short *bstline);
1067 extern int pick(short p1, short p2);
1068 extern short repetition(void);
1069 extern void TimeCalc(void);
1072 DropPossible(short piece, short side, short sq); /* genmoves.c */
1075 IsCheckmate(short side, short in_check,
1076 short blockable); /* genmoves.c */
1081 VERIFY_AND_MAKE_MODE, VERIFY_AND_TRY_MODE, UNMAKE_MODE
1084 extern int VerifyMove(char *s, VerifyMove_mode iop, unsigned short *mv);
1085 extern unsigned short TTage;
1087 #endif /* _GNUSHOGI_H_ */