4 * Main header file for GNU Shogi.
6 * ----------------------------------------------------------------------
7 * Copyright (c) 1993, 1994, 1995 Matthias Mutz
8 * Copyright (c) 1999 Michael Vanier and the Free Software Foundation
10 * GNU SHOGI is based on GNU CHESS
12 * Copyright (c) 1988, 1989, 1990 John Stanback
13 * Copyright (c) 1992 Free Software Foundation
15 * This file is part of GNU SHOGI.
17 * GNU Shogi is free software; you can redistribute it and/or modify it
18 * under the terms of the GNU General Public License as published by the
19 * Free Software Foundation; either version 3 of the License,
20 * or (at your option) any later version.
22 * GNU Shogi is distributed in the hope that it will be useful, but WITHOUT
23 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
24 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
27 * You should have received a copy of the GNU General Public License along
28 * with GNU Shogi; see the file COPYING. If not, see
29 * <http://www.gnu.org/licenses/>.
30 * ----------------------------------------------------------------------
34 /* Hack for anal-retentive ANSI-compliance if desired: */
37 /* FIXME: this file needs to be reorganized in some rational manner. */
42 #include "config.h" /* Portability #defines. */
44 #include "opts.h" /* Various option-setting #defines. */
50 typedef enum { DISPLAY_RAW, DISPLAY_CURSES, DISPLAY_X } display_t;
51 extern display_t display_type;
53 #define XSHOGI (display_type == DISPLAY_X)
54 #define NOT_CURSES ((display_type == DISPLAY_X) \
55 || (display_type == DISPLAY_RAW))
58 /* Miscellaneous globals. */
60 extern short hard_time_limit; /* If you exceed time limit, you lose. */
61 extern short barebones; /* Don't print of stats for x interface. */
62 extern short nolist; /* Don't list game after exit. */
66 * Options for various compilers/OSs.
70 * type small_short must cover -128 .. 127. In case of trouble,
71 * try commenting out "signed". If this doesn't help, use short.
74 #define small_short signed char
75 #define small_ushort unsigned char
78 typedef small_short BYTE;
79 typedef small_ushort UBYTE;
81 typedef unsigned short USHORT;
83 typedef unsigned int UINT;
85 typedef unsigned long ULONG;
88 #if !defined(HAVE_MEMCPY) && !defined(HAVE_BCOPY)
89 # define array_copy(src, dst, len) \
92 char *psrc = (char *)src, *pdst = (char *)dst; \
93 for (i = len; i; pdst[--i] = psrc[i]); \
95 # define array_zero(dst, len) \
98 char *pdst = (char *)dst; \
99 for (i = len; i; pdst[--i] = 0); \
101 #elif !defined(HAVE_MEMCPY) /* BSD and derivatives */
102 # define array_copy(src, dst, len) bcopy(src, dst, len)
103 # define array_zero(dst, len) bzero(dst, len)
104 #else /* System V and derivatives */
105 # define array_copy(src, dst, len) memcpy(dst, src, len)
106 # define array_zero(dst, len) memset(dst, 0, len)
116 * Standard header files.
125 #include <sys/param.h>
126 #include <sys/types.h>
127 #include <sys/times.h>
128 #include <sys/ioctl.h>
131 #if TIME_WITH_SYS_TIME
132 # include <sys/time.h>
136 # include <sys/time.h>
145 extern char *binbookfile;
148 extern char *bookfile;
152 extern void movealgbr(short m, char *s);
159 #define MAX_CAPTURED 19
160 #define NO_PTYPE_PIECES 15
163 #define NO_SQUARES (NO_COLS*NO_ROWS)
165 #define ROW_NAME(n) ('a' + NO_ROWS - 1 - n)
166 #define COL_NAME(n) ('1' + NO_COLS - 1 - n)
168 #if defined HASHFILE || defined CACHE
169 # define PTBLBDSIZE (NO_SQUARES + NO_PIECES)
172 #include "dspwrappers.h" /* Display functions. */
175 #define SCORE_LIMIT 12000
177 /* masks into upper 16 bits of attacks array */
178 /* observe order of relative piece values */
179 #define CNT_MASK 0x000000FF
180 #define ctlP 0x00200000
181 #define ctlPp 0x00100000
182 #define ctlL 0x00080000
183 #define ctlN 0x00040000
184 #define ctlLp 0x00020000
185 #define ctlNp 0x00010000
186 #define ctlS 0x00008000
187 #define ctlSp 0x00004000
188 #define ctlG 0x00002000
189 #define ctlB 0x00001000
190 #define ctlBp 0x00000800
191 #define ctlR 0x00000400
192 #define ctlRp 0x00000200
193 #define ctlK 0x00000100
195 /* attack functions */
196 #define Pattack(c, u) (attack[c][u] > ctlP)
197 #define Anyattack(c, u) (attack[c][u] != 0)
199 /* hashtable flags */
200 #define truescore 0x0001
201 #define lowerbound 0x0002
202 #define upperbound 0x0004
203 #define kingcastle 0x0008
204 #define queencastle 0x0010
205 #define evalflag 0x0020
208 #define BlackKing PieceList[black][0]
209 #define WhiteKing PieceList[white][0]
210 #define OwnKing PieceList[c1][0]
211 #define EnemyKing PieceList[c2][0]
214 /* board properties */
215 #define InBlackCamp(sq) ((sq) < 27)
216 #define InWhiteCamp(sq) ((sq) > 53)
217 #define InPromotionZone(side, sq) \
218 (((side) == black) ? InWhiteCamp(sq) : InBlackCamp(sq))
221 #define OPENING_HINT 0x141d /* P7g-7f (20->29) */
237 /* piece code defines */
277 #define pmask 0x000f /* 15 */
278 #define promote 0x0010 /* 16 */
279 #define dropmask 0x0020 /* 32 */
280 #define exact 0x0040 /* 64 */
281 #define tesuji 0x0080 /* 128 */
282 #define check 0x0100 /* 256 */
283 #define capture 0x0200 /* 512 */
284 #define draw 0x0400 /* 1024 */
285 #define stupid 0x0800 /* 2048 */
286 #define questionable 0x1000 /* 4096 */
287 #define kingattack 0x2000 /* 8192 */
288 #define book 0x4000 /* 16384 */
290 /* move quality flags */
291 #define goodmove tesuji
292 #define badmove stupid
294 #define difficult questionable
303 /***************** Table limits ********************************************/
306 * ttblsz must be a power of 2. Setting ttblsz 0 removes the transposition
312 #elif defined SMALL_MEMORY
313 # if defined SAVE_SSCORE
314 # define vttblsz (1 << 12)
316 # if defined EXTRA_2MB
317 # define vttblsz (1 << 12)
319 # define vttblsz (1 << 10)
323 # define vttblsz (100001)
326 #if defined SMALL_MEMORY
327 # define MINTTABLE (0)
329 # define MINTTABLE (8000) /* min ttable size -1 */
332 #define ttblsz vttblsz
334 #if defined SMALL_MEMORY
335 # if !defined SAVE_SSCORE
336 # define TREE 1500 /* max number of tree entries */
338 # define TREE 2500 /* max number of tree entries */
341 # define TREE 4000 /* max number of tree entries */
344 #define MAXDEPTH 40 /* max depth a search can be carried */
345 #define MINDEPTH 2 /* min search depth =1 (no hint), >1 hint */
346 #define MAXMOVES 300 /* max number of half moves in a game */
347 #define CPSIZE 235 /* size of lang file max */
349 #if defined SMALL_MEMORY
350 # if defined SAVE_SSCORE
351 # define ETABLE (1 << 10) /* static eval cache */
353 # if defined EXTRA_2MB
354 # define ETABLE (1 << 10) /* static eval cache */
356 # define ETABLE (1 << 8) /* static eval cache */
360 # define ETABLE (10001) /* static eval cache */
363 /***************** tuning paramaters *******************/
365 #if defined VERY_SLOW_CPU
366 # define MINRESPONSETIME 300
367 #elif defined SLOW_CPU
368 # define MINRESPONSETIME 200
370 # define MINRESPONSETIME 100 /* 1 s */
375 #define CHKDEPTH 1 /* always look forward CHKDEPTH
376 * half-moves if in check */
378 #if defined SLOW_CPU || defined VERY_SLOW_CPU
379 # define DEPTHBEYOND 7 /* Max to go beyond Sdepth */
381 # define DEPTHBEYOND 11 /* Max to go beyond Sdepth */
384 #define HASHDEPTH 4 /* depth above which to use HashFile */
385 #define HASHMOVELIMIT 40 /* Use HashFile only for this many moves */
386 #define PTVALUE 0 /* material value below which pawn threats at
388 #define ZDEPTH 3 /* depth beyond which to check
389 * ZDELTA for extra time */
390 #define ZDELTA 10 /* score delta per ply to cause
391 * extra time to be given */
394 /* about 1/2 second worth of nodes for your machine */
395 #if defined VERY_SLOW_CPU
396 /* check the time every ZNODES positions */
397 # define ZNODES (flag.tsume ? 20 : 50)
398 #elif defined SLOW_CPU
399 # define ZNODES (flag.tsume ? 40 : 100)
401 # define ZNODES (flag.tsume ? 400 : 1000)
404 #define MAXTCCOUNTX 10 /* max number of time clicks
405 * per search to complete ply */
406 #define MAXTCCOUNTR 4 /* max number of time clicks
407 * per search extensions*/
408 #define SCORESPLIM 8 /* Score space doesn't apply after this stage */
409 #define SDEPTHLIM (Sdepth + 1)
410 #define HISTORYLIM 4096 /* Max value of history killer */
413 # if defined SMALL_MEMORY
414 # define HISTORY_MASK 0x8000 /* mask to MSB of history index */
415 # define HISTORY_SIZE 0x10000 /* size of history table */
417 # define HISTORY_MASK (1 << 15) /* mask to MSB of history index */
418 # define HISTORY_SIZE (1 << 16) /* size of history table */
421 /* smaller history table, but dangerous because of collisions */
422 # define HISTORY_MASK 0x3fff /* mask to significant bits
423 * of history index */
424 # if defined SMALL_MEMORY
425 # define HISTORY_SIZE 0x4000 /* size of history table */
427 # define HISTORY_SIZE (1 << 14) /* size of history table */
431 #define sizeof_history (sizeof(unsigned short) * (size_t)HISTORY_SIZE)
434 /* Map from.to (8bit.8bit) to from.to (0.7bit.8bit) */
435 # define khmove(mv) (mv & 0x7fff)
436 # define hmove(mv) ((mv & 0x7fff) ^ 0x5555)
438 /* Map from.to (8bit.8bit) to from.to (00.7bit.7bit) */
439 /* Swap bits of ToSquare in case of promotions, hoping that
440 no catastrophic collision occurs. */
441 # define khmove(mv) (((mv & 0x7f00) >> 1) | \
442 ((mv & 0x0080) ? ((mv & 0x007f) ^ 0x007f) : (mv & 0x007f)))
443 # define hmove(mv) (khmove(mv) ^ 0x2aaa)
446 /* mask color to 15th bit */
448 # define hindex(c, mv) ((c ? HISTORY_MASK : 0) | hmove(mv))
450 /* for white, swap bits, hoping that no catastrophic collision occurs. */
451 # define hindex(c, mv) (c ? ((~hmove(mv)) & HISTORY_MASK) : hmove(mv))
454 #define EWNDW 10 /* Eval window to force position scoring at depth
455 * greater than (Sdepth + 2) */
456 #define WAWNDW 90 /* alpha window when computer black */
457 #define WBWNDW 90 /* beta window when computer black */
458 #define BAWNDW 90 /* alpha window when computer white */
459 #define BBWNDW 90 /* beta window when computer white */
460 #define BXWNDW 90 /* window to force position scoring at lower */
461 #define WXWNDW 90 /* window to force position scoring at lower */
463 #define DITHER 5 /* max amount random can alter a pos value */
464 #define LBONUS 1 /* points per stage value of L increases */
465 #define BBONUS 2 /* points per stage value of B increases */
466 #define RBONUS 2 /* points per stage value of R increases */
468 #define QUESTIONABLE (valueK) /* Penalty for questionable moves. */
474 #define STUPID (valueR << 1) /* Penalty for stupid moves. */
476 #define KINGPOSLIMIT (-1) /* King positional scoring limit */
477 #define KINGSAFETY 32
478 #define MAXrehash (7)
480 /******* parameters for Opening Book ****************/
482 #define BOOKSIZE 8000 /* Number of unique position/move
483 * combinations allowed */
484 #define BOOKMAXPLY 40 /* Max plys to keep in book database */
485 #define BOOKFAIL (BOOKMAXPLY / 2) /* if no book move found for BOOKFAIL
486 * turns stop using book */
487 #define BOOKPOCKET 64
488 #define BOOKRAND 1000 /* used to select an opening move
490 #define BOOKENDPCT 950 /* 5 % chance a BOOKEND will stop the book */
491 #define DONTUSE -32760 /* flag move as don't use */
492 #define ILLEGAL_TRAPPED -32761 /* flag move as illegal:
493 * no move from this square */
494 #define ILLEGAL_DOUBLED -32762 /* flag move as illegal:
495 * two pawns on one column */
496 #define ILLEGAL_MATE -32763 /* flag move as illegal:
497 * pawn drop with mate */
499 /*****************************************************/
503 unsigned long key, bd;
508 unsigned long hashbd;
510 unsigned char depth; /* unsigned char saves some space */
517 unsigned char bd[PTBLBDSIZE];
518 #endif /* HASHTEST */
521 #if defined HASHFILE || defined CACHE
524 unsigned long ehashbd;
526 #if !defined SAVE_SSCORE
527 short sscore[NO_SQUARES];
532 unsigned char bd[PTBLBDSIZE];
533 #endif /* CACHETEST */
537 extern short use_etable;
538 typedef struct etable etable_field[ETABLE];
539 extern etable_field *etab[2];
543 * CHECKME! Is this valid?
545 * persistent transposition table. By default, the size is (1 << vfilesz).
546 * If you change the size, be sure to run gnushogi -c [vfilesz]
547 * before anything else.
552 #if defined SMALL_MEMORY
560 unsigned char bd[PTBLBDSIZE];
561 unsigned char f, t, flags, depth, sh, sl;
564 #endif /* HASHFILE */
570 short score, reply, width;
572 unsigned short flags;
578 unsigned short gmove; /* this move */
579 short score; /* score after this move */
580 short depth; /* search depth this move */
581 long time; /* search time this move */
582 short fpiece; /* moved or dropped piece */
583 short piece; /* piece captured */
584 short color; /* color */
585 short flags; /* move flags capture, promote, castle */
586 short Game50; /* flag for repetition */
587 long nodes; /* nodes searched for this move */
588 unsigned long hashkey, hashbd; /* board key before this move */
592 struct TimeControlRec
601 short mate; /* the game is over */
602 short post; /* show principle variation */
603 short quit; /* quit/exit */
604 short regularstart; /* did the game start from standard
606 short reverse; /* reverse board display */
607 short bothsides; /* computer plays both sides */
608 short hash; /* enable/disable transposition table */
609 short force; /* enter moves */
610 short easy; /* disable thinking on opponents time */
611 short beep; /* enable/disable beep */
612 short timeout; /* time to make a move */
613 short musttimeout; /* time to make a move */
614 short back; /* time to make a move */
615 short rcptr; /* enable/disable recapture heuristics */
616 short rv; /* reverse video */
617 short stars; /* add stars to uxdsp screen */
618 short coords; /* add coords to visual screen */
620 short material; /* draw on lack of material */
621 short illegal; /* illegal position */
622 short onemove; /* timing is onemove */
623 short gamein; /* timing is gamein */
624 short tsume; /* first consider checks */
627 extern FILE *debugfile;
630 #define EVALFILE "/tmp/EVAL"
633 extern FILE *debug_eval_file;
634 extern short debug_moves;
638 extern short use_history;
639 extern unsigned short *history;
644 extern char ColorStr[2][10];
646 extern char mvstr[4][6];
647 extern unsigned short MV[MAXDEPTH];
649 extern int mycnt1, mycnt2;
651 extern struct leaf rootnode;
652 extern struct leaf *Tree;
653 extern struct leaf *root;
654 extern char savefile[], listfile[];
655 extern short TrPnt[];
656 extern small_short board[], color[];
657 extern const small_short sweep[NO_PIECES];
658 extern small_short PieceList[2][NO_SQUARES], PawnCnt[2][NO_COLS];
659 extern small_short Captured[2][NO_PIECES];
662 # define ClearCaptured() \
664 short piece, color; \
665 for (color = black; color <= white; color++) \
666 for (piece = 0; piece < NO_PIECES; piece++) \
667 Captured[color][piece] = 0; \
670 # define ClearCaptured() \
671 memset((char *)Captured, 0, (unsigned long)sizeof(Captured))
672 #endif /* HAVE_MEMSET */
674 extern small_short Mvboard[];
676 #if !defined SAVE_SVALUE
677 extern short svalue[NO_SQUARES];
680 extern short pscore[2]; /* eval.c */
681 extern int EADD; /* eval.c */
682 extern int EGET; /* eval.c */
683 extern struct flags flag;
684 extern short opponent, computer, INCscore;
685 extern short WAwindow, BAwindow, WBwindow, BBwindow;
686 extern short dither, player;
687 extern short xwndw, contempt;
688 extern long ResponseTime, ExtraTime, TCleft,
689 MaxResponseTime, et, et0, time0, ft;
692 #ifdef INTERRUPT_TEST
693 extern long itime0, it;
696 extern long reminus, replus;
697 extern long GenCnt, NodeCnt, ETnodes, EvalNodes, HashAdd, HashCnt,
698 HashCol, THashCol, FHashCnt, FHashAdd;
699 extern short HashDepth, HashMoveLimit;
700 extern struct GameRec *GameList;
701 extern short GameCnt, Game50;
702 extern short Sdepth, MaxSearchDepth;
704 extern struct TimeControlRec TimeControl;
706 extern short TCflag, TCmoves, TCminutes, TCseconds, OperatorTime;
707 extern int timecomp[MINGAMEIN], timeopp[MINGAMEIN];
708 extern int compptr, oppptr;
709 extern short XCmore, XCmoves[], XCminutes[], XCseconds[], XC;
710 extern const short otherside[];
711 extern const small_short Stboard[];
712 extern const small_short Stcolor[];
713 extern unsigned short hint;
715 extern short stage, stage2;
717 #define in_opening_stage (!flag.tsume && (stage < 33))
718 #define in_middlegame_stage (!flag.tsume && (stage >= 33) && (stage <= 66))
719 #define in_endgame_stage (flag.tsume || (stage > 66))
721 extern short ahead, hash;
722 extern short balance[2];
723 extern small_short ChkFlag[], CptrFlag[], TesujiFlag[];
724 extern short Pscore[], Tscore[];
725 extern /*unsigned*/ short rehash; /* -1 is used as a flag --tpm */
726 extern char version[], patchlevel[];
727 extern unsigned int ttbllimit;
728 extern unsigned int TTadd;
729 extern unsigned int ttblsize;
730 extern short mtl[], hung[];
731 extern small_short Pindex[];
732 extern small_short PieceCnt[];
733 extern short FROMsquare, TOsquare;
734 extern small_short HasPiece[2][NO_PIECES];
735 extern const short kingP[];
736 extern unsigned short killr0[], killr1[];
737 extern unsigned short killr2[], killr3[];
738 extern unsigned short PrVar[MAXDEPTH];
739 extern unsigned short PV, SwagHt, Swag0, Swag1, Swag2, Swag3, Swag4, sidebit;
740 extern short mtl[2], pmtl[2], hung[2];
741 extern const small_short relative_value[];
742 extern const long control[];
743 extern small_short diagonal(short delta);
744 extern const small_short promoted[NO_PIECES], unpromoted[NO_PIECES];
745 extern const small_short is_promoted[NO_PIECES];
747 typedef unsigned char next_array[NO_SQUARES][NO_SQUARES];
748 typedef small_short distdata_array[NO_SQUARES][NO_SQUARES];
750 extern const small_short inunmap[NO_SQUARES];
751 extern const small_short nunmap[(NO_COLS + 2)*(NO_ROWS + 4)];
753 #if defined SAVE_NEXTPOS
754 extern const small_short direc[NO_PTYPE_PIECES][8];
755 extern short first_direction(short ptyp, short *d, short sq);
756 extern short next_direction(short ptyp, short *d, short sq);
757 extern short next_position(short ptyp, short *d, short sq, short u);
759 extern short use_nextpos;
760 extern next_array *nextpos[NO_PTYPE_PIECES];
761 extern next_array *nextdir[NO_PTYPE_PIECES];
764 extern value_array *value;
765 extern fscore_array *fscore;
767 #ifndef SAVE_DISTDATA
768 extern short use_distdata;
769 extern distdata_array *distdata;
772 #ifndef SAVE_PTYPE_DISTDATA
773 extern short use_ptype_distdata;
774 extern distdata_array *ptype_distdata[NO_PTYPE_PIECES];
777 extern const small_short ptype[2][NO_PIECES];
779 extern long filesz, hashmask, hashbase;
780 extern FILE *hashfile;
781 extern unsigned int starttime;
784 typedef small_short Mpiece_array[2][NO_SQUARES];
785 extern Mpiece_array *Mpiece[NO_PIECES];
786 extern short ADVNCM[NO_PIECES];
788 #define computed_distance(a, b) \
789 ((abs(column(a) - column(b)) > abs(row(a) - row(b))) \
790 ? abs(column(a) - column(b)) : abs(row(a) - row(b)))
792 extern short distance(short a, short b);
793 extern short ptype_distance(short ptyp, short f, short t);
794 extern short piece_distance(short side, short piece, short f, short t);
801 #define STATIC_ROOK 'S'
802 #define RANGING_ROOK 'R'
804 extern char GameType[2];
805 void ShowGameType(void);
807 extern unsigned short bookmaxply;
808 extern unsigned int bookcount;
809 extern unsigned int booksize;
810 extern unsigned long hashkey, hashbd;
812 typedef struct hashval hashcode_array[2][NO_PIECES][NO_SQUARES];
813 typedef struct hashval drop_hashcode_array[2][NO_PIECES][NO_SQUARES];
815 extern hashcode_array *hashcode;
816 extern drop_hashcode_array *drop_hashcode;
819 #ifdef QUIETBACKGROUND
820 extern short background;
821 #endif /* QUIETBACKGROUND */
824 extern short use_ttable;
825 extern struct hashentry *ttable[2];
829 * hashbd contains a 32 bit "signature" of the board position. hashkey
830 * contains a 16 bit code used to address the hash table. When a move is
831 * made, XOR'ing the hashcode of moved piece on the from and to squares with
832 * the hashbd and hashkey values keeps things current.
835 #define UpdateHashbd(side, piece, f, t) \
839 hashbd ^= (*hashcode)[side][piece][f].bd; \
840 hashkey ^= (*hashcode)[side][piece][f].key; \
845 hashbd ^= (*hashcode)[side][piece][t].bd; \
846 hashkey ^= (*hashcode)[side][piece][t].key; \
850 #define UpdateDropHashbd(side, piece, count) \
852 hashbd ^= (*drop_hashcode)[side][piece][count].bd; \
853 hashkey ^= (*drop_hashcode)[side][piece][count].key; \
857 extern short rpthash[2][256];
860 #define row(a) ((a) / NO_COLS)
861 #define column(a) ((a) % NO_COLS)
862 #define locn(a, b) (((a) * NO_COLS) + b)
864 /* init external functions */
865 extern void InitConst(char *lang); /* init.c */
866 extern int Initialize_data(void); /* init.c */
867 extern void Free_data(void); /* init.c */
868 extern int Lock_data(void); /* init.c */
869 extern void Unlock_data(void); /* init.c */
870 extern void Initialize_dist(void); /* init.c */
871 extern void Initialize_eval(void); /* eval.c */
872 extern void NewGame(void);
873 extern int parse(FILE * fd, unsigned short *mv,
874 short side, char *opening);
875 extern void GetOpenings(void);
876 extern int OpeningBook(unsigned short *hint, short side);
880 REMOVE_PIECE = 1, ADD_PIECE
881 } UpdatePieceList_mode;
884 UpdatePieceList(short side, short sq, UpdatePieceList_mode iop);
888 FOREGROUND_MODE = 1, BACKGROUND_MODE
892 SelectMove(short side, SelectMove_mode iop);
900 unsigned short *bstline,
904 void PutInEETable(short side, int score);
905 int CheckEETable(short side);
906 int ProbeEETable(short side, short *score);
911 ProbeTTable(short side,
919 PutInTTable(short side,
927 extern void ZeroTTable(void);
928 extern void ZeroRPT(void);
929 extern void Initialize_ttable(void);
930 extern unsigned int urand(void);
933 extern void gsrand(unsigned int);
936 ProbeFTable(short side,
944 PutInFTable(short side,
953 # endif /* HASHFILE */
956 #if !defined SAVE_NEXTPOS
957 extern void Initialize_moves(void);
960 extern short generate_move_flags;
962 extern void MoveList(short side, short ply,
963 short in_check, short blockable);
964 extern void CaptureList(short side, short ply,
965 short in_check, short blockable);
969 SqAttacked(short square, short side, short *blockable);
981 UnmakeMove(short side,
989 InitializeStats(void);
1000 extern short ScorePosition(short side);
1001 extern void ExaminePosition(short side);
1002 extern short ScorePatternDistance(short side);
1003 extern void DetermineStage(short side);
1004 extern void UpdateWeights(short side);
1005 extern int InitMain(void);
1006 extern void ExitMain(void);
1007 extern void Initialize(void);
1008 extern void InputCommand(char *command);
1009 extern void ExitShogi(void);
1010 extern void ClearScreen(void);
1011 extern void SetTimeControl(void);
1012 extern void SelectLevel(char *sx);
1015 UpdateDisplay(short f,
1022 COMPUTE_AND_INIT_MODE = 1, COMPUTE_MODE
1023 #ifdef INTERRUPT_TEST
1024 , INIT_INTERRUPT_MODE, COMPUTE_INTERRUPT_MODE
1028 extern void ElapsedTime(ElapsedTime_mode iop);
1029 extern void SetResponseTime(short side);
1030 extern void CheckForTimeout(int score, int globalscore,
1031 int Jscore, int zwndw);
1032 extern void ShowSidetoMove(void);
1033 extern void ShowResponseTime(void);
1034 extern void ShowPatternCount(short side, short n);
1035 extern void SearchStartStuff(short side);
1036 extern void ShowDepth(char ch);
1037 extern void TerminateSearch(int);
1038 extern void ShowResults(short score, unsigned short *bstline, char ch);
1039 extern void PromptForMove(void);
1040 extern void SetupBoard(void);
1041 extern void algbr(short f, short t, short flag);
1042 extern void OutputMove(void);
1043 extern void ShowCurrentMove(short pnt, short f, short t);
1044 extern void ListGame(void);
1045 extern void ShowMessage(char *s);
1046 extern void ClearScreen(void);
1047 extern void gotoXY(short x, short y);
1048 extern void ClearEoln(void);
1049 extern void DrawPiece(short sq);
1050 extern void UpdateClocks(void);
1051 extern void DoDebug(void);
1052 extern void DoTable(short table[NO_SQUARES]);
1053 extern void ShowPostnValues(void);
1054 extern void ChangeXwindow(void);
1055 extern void SetContempt(void);
1056 extern void ChangeHashDepth(void);
1057 extern void ChangeBetaWindow(void);
1058 extern void GiveHint(void);
1059 extern void ShowPrompt(void);
1060 extern void EditBoard(void);
1061 extern void help(void);
1062 extern void ChangeSearchDepth(void);
1063 extern void skip(void);
1064 extern void skipb(void);
1065 extern void EnPassant(short xside, short f, short t, short iop);
1066 extern void ShowNodeCnt(long NodeCnt);
1067 extern void ShowLine(unsigned short *bstline);
1068 extern int pick(short p1, short p2);
1069 extern short repetition(void);
1070 extern void TimeCalc(void);
1073 DropPossible(short piece, short side, short sq); /* genmoves.c */
1076 IsCheckmate(short side, short in_check,
1077 short blockable); /* genmoves.c */
1082 VERIFY_AND_MAKE_MODE, VERIFY_AND_TRY_MODE, UNMAKE_MODE
1085 extern int VerifyMove(char *s, VerifyMove_mode iop, unsigned short *mv);
1086 extern unsigned short TTage;
1088 #endif /* _GNUSHOGI_H_ */