1a8009654f
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@20 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
1150 lines
31 KiB
C
1150 lines
31 KiB
C
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: init.c *
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* Last rev: *
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* mods: *
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* comments: initializing a prolog session *
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* *
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*************************************************************************/
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#ifdef SCCS
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static char SccsId[] = "%W% %G%";
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#endif
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/*
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* The code from this file is used to initialize the environment for prolog
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*
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*/
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#include "Yap.h"
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#include "yapio.h"
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#include "clause.h"
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#ifdef LOW_LEVEL_TRACER
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#include "tracer.h"
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#endif
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#ifdef YAPOR
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#include "or.macros.h"
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#endif /* YAPOR */
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#if defined(YAPOR) || defined(TABLING)
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#if HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#endif /* YAPOR || TABLING */
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#if HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef SBA
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#ifdef YAPOR
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#ifndef FROZEN_REGS
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#define FROZEN_REGS 1
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#endif
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#endif
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#endif
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#ifdef TABLING
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#ifndef FROZEN_REGS
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#define FROZEN_REGS 1
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#endif
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#endif
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#ifdef DEBUG
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#ifdef MACC
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STATIC_PROTO(void InTTYLine, (char *));
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#endif
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#endif
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STATIC_PROTO(void SetOp, (int, int, char *));
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STATIC_PROTO(void InitOps, (void));
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STATIC_PROTO(void InitDebug, (void));
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STATIC_PROTO(void CleanBack, (PredEntry *, CPredicate, CPredicate));
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STATIC_PROTO(void InitStdPreds,(void));
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STATIC_PROTO(void InitFlags, (void));
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STATIC_PROTO(void InitCodes, (void));
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STATIC_PROTO(void InitVersion, (void));
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STD_PROTO(void InitModules, (void));
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STD_PROTO(void exit, (int));
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#ifdef DEBUG
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char Option[20];
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#endif
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/************** YAP PROLOG GLOBAL VARIABLES *************************/
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/************* variables related to memory allocation ***************/
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ADDR HeapBase, LocalBase, GlobalBase, TrailBase, TrailTop, ForeignCodeBase, ForeignCodeTop, ForeignCodeMax;
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/* Functor FunctorDouble, FunctorLongInt, FunctorDBRef; */
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/************ variables concerned with Error Handling *************/
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char *ErrorMessage; /* used to pass error messages */
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Term Error_Term; /* used to pass error terms */
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yap_error_number Error_TYPE; /* used to pass the error */
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/********* flags for comunication with prolog system predicates *****/
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int Parm[10];
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#ifdef MPWSHELL
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/********** informing if we are in the MPW shell ********************/
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int mpwshell = FALSE;
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#endif
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#ifdef EMACS
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int emacs_mode = FALSE;
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char emacs_tmp[256], emacs_tmp2[256];
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#endif
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#if HAVE_SIGNAL
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int snoozing = FALSE;
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#endif
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/************ variable concerned with version number *****************/
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char version_number[] = YAP_VERSION;
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/******************** compiler information ***************************/
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int optimizer_on = TRUE;
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/******************* the line for the current parse **********************/
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int StartLine = 1;
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int StartCh = 0;
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int CurFileNo = 0;
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int compile_mode = 0;
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/******************* intermediate buffers **********************/
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char FileNameBuf[YAP_FILENAME_MAX], FileNameBuf2[YAP_FILENAME_MAX];
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/********* Prolog State ********************************************/
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int PrologMode = BootMode;
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#if PUSH_REGS
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REGSTORE standard_regs;
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REGSTORE *regp;
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#else
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REGSTORE REGS;
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#endif
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/* module data */
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SMALLUNSGN CurrentModule = 0;
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/************** Access to yap initial arguments ***************************/
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char **yap_args;
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int yap_argc;
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/************** Extensions to Terms ***************************************/
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#ifdef COROUTINING
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/* array with the ops for your favourite extensions */
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ext_op attas[attvars_ext+1];
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#endif
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/************** Debugger support ***************************************/
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#ifdef DEBUG
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int output_msg = FALSE;
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#endif
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/************ variables concerned with Error Handling *************/
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sigjmp_buf RestartEnv; /* used to restart after an abort execution */
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/************ table of C-Predicates *************/
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CPredicate c_predicates[MAX_C_PREDS];
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cmp_entry cmp_funcs[MAX_CMP_FUNCS];
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/************** declarations local to init.c ************************/
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static char *optypes[] =
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{"", "xfx", "xfy", "yfx", "xf", "yf", "fx", "fy"};
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#define xfx 1
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#define xfy 2
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#define yfx 3
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#define xf 4
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#define yf 5
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#define fx 6
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#define fy 7
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#define Nill NULL
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#ifdef DEBUG
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#define LOGFILE "logfile"
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/* static */ YP_FILE *logfile;
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int
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DebugPutc(int sno, int ch)
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{
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if (Option['l' - 96])
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(void) putc(ch, logfile);
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return (YP_putc(ch, YP_stderr));
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}
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static char my_line[200] = {0};
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static char *lp = my_line;
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static YP_File curfile;
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#ifdef MACC
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static void
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InTTYLine(char *line)
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{
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char *p = line;
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char ch;
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while ((ch = InKey()) != '\n' && ch != '\r')
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if (ch == 8) {
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if (line < p)
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BackupTTY(*--p);
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} else
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TTYChar(*p++ = ch);
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TTYChar('\n');
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*p = 0;
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}
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#endif
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void
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DebugSetIFile(char *fname)
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{
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if (curfile)
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YP_fclose(curfile);
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curfile = YP_fopen(fname, "r");
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if (curfile == Nill) {
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curfile = stdin;
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YP_fprintf(YP_stderr,"[ Warning: can not open %s for input]\n", fname);
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}
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}
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void
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DebugEndline()
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{
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*lp = 0;
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}
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static int eolflg = 1;
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int
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DebugGetc()
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{
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int ch;
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if (eolflg) {
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if (curfile != Nill) {
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if (YP_fgets(my_line, 200, curfile) == 0)
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curfile = Nill;
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}
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if (curfile == Nill)
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YP_fgets(my_line, 200, stdin);
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eolflg = 0;
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lp = my_line;
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}
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if ((ch = *lp++) == 0)
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ch = '\n', eolflg = 1;
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if (Option['l' - 96])
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putc(ch, logfile);
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return (ch);
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}
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#endif
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void
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UserCPredicate(char *name, CPredicate def, unsigned int arity)
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{
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InitCPred(name, arity, def, UserCPredFlag);
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}
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void
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UserBackCPredicate(char *name, CPredicate init, CPredicate cont,
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unsigned int arity, int extra)
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{
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InitCPredBack(name, arity, extra, init, cont, UserCPredFlag);
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}
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int IsOpType(char *type)
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{
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int i;
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for (i = 1; i <= 7; ++i)
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if (strcmp(type, optypes[i]) == 0)
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break;
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return (i <= 7);
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}
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int
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OpDec(int p, char *type, Atom a)
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{
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int i;
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AtomEntry *ae = RepAtom(a);
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OpEntry *info;
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for (i = 1; i <= 7; ++i)
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if (strcmp(type, optypes[i]) == 0)
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break;
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if (i > 7) {
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Error(DOMAIN_ERROR_OPERATOR_SPECIFIER,MkAtomTerm(LookupAtom(type)),"op/3");
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return(FALSE);
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}
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if (p) {
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if (i == 1 || i == 2 || i == 4)
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p |= DcrlpFlag;
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if (i == 1 || i == 3 || i == 6)
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p |= DcrrpFlag;
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}
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WRITE_LOCK(ae->ARWLock);
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info = RepOpProp(LockedGetAProp(ae, OpProperty));
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if (EndOfPAEntr(info)) {
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info = (OpEntry *) AllocAtomSpace(sizeof(OpEntry));
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info->KindOfPE = Ord(OpProperty);
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info->NextOfPE = RepAtom(a)->PropOfAE;
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RepAtom(a)->PropOfAE = AbsOpProp(info);
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INIT_RWLOCK(info->OpRWLock);
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WRITE_LOCK(info->OpRWLock);
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WRITE_UNLOCK(ae->ARWLock);
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info->Prefix = info->Infix = info->Posfix = 0;
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} else {
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WRITE_LOCK(info->OpRWLock);
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WRITE_UNLOCK(ae->ARWLock);
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}
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if (i <= 3) {
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if (info->Posfix != 0) /* there is a posfix operator */ {
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/* ISO dictates */
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WRITE_UNLOCK(info->OpRWLock);
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Error(PERMISSION_ERROR_CREATE_OPERATOR,MkAtomTerm(a),"op/3");
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return(FALSE);
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}
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info->Infix = p;
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} else if (i <= 5) {
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if (info->Infix != 0) /* there is an infix operator */ {
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/* ISO dictates */
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WRITE_UNLOCK(info->OpRWLock);
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Error(PERMISSION_ERROR_CREATE_OPERATOR,MkAtomTerm(a),"op/3");
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return(FALSE);
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}
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info->Posfix = p;
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} else {
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info->Prefix = p;
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}
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WRITE_UNLOCK(info->OpRWLock);
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return (TRUE);
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}
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static void
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SetOp(int p, int type, char *at)
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{
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#ifdef DEBUG
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if (Option[5])
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YP_fprintf(YP_stderr,"[setop %d %s %s]\n", p, optypes[type], at);
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#endif
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OpDec(p, optypes[type], LookupAtom(at));
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}
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/* Gets the info about an operator in a prop */
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Atom
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GetOp(OpEntry *pp, int *prio, int fix)
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{
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int n;
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SMALLUNSGN p;
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if (fix == 0) {
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p = pp->Prefix;
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if (p & DcrrpFlag)
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n = 6, *prio = (p ^ DcrrpFlag);
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else
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n = 7, *prio = p;
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} else if (fix == 1) {
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p = pp->Posfix;
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if (p & DcrlpFlag)
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n = 4, *prio = (p ^ DcrlpFlag);
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else
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n = 5, *prio = p;
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} else {
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p = pp->Infix;
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if ((p & DcrrpFlag) && (p & DcrlpFlag))
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n = 1, *prio = (p ^ (DcrrpFlag | DcrlpFlag));
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else if (p & DcrrpFlag)
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n = 3, *prio = (p ^ DcrrpFlag);
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else if (p & DcrlpFlag)
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n = 2, *prio = (p ^ DcrlpFlag);
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else
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n = 4, *prio = p;
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}
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return (LookupAtom(optypes[n]));
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}
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typedef struct OPSTRUCT {
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char *opName;
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short int opType, opPrio;
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} Opdef;
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static Opdef Ops[] = {
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{":-", xfx, 1200},
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{"-->", xfx, 1200},
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{"?-", fx, 1200},
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{":-", fx, 1200},
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{"dynamic", fx, 1150},
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{"initialization", fx, 1150},
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{"mode", fx, 1150},
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{"public", fx, 1150},
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{"multifile", fx, 1150},
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{"meta_predicate", fx, 1150},
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{"discontiguous", fx, 1150},
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#ifdef YAPOR
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{"sequential", fx, 1150},
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#endif /* YAPOR */
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#ifdef TABLING
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{"table", fx, 1150},
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#endif /* TABLING */
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{";", xfy, 1100},
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{"|", xfy, 1100},
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/* {";", yf, 1100}, not allowed in ISO */
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{"->", xfy, 1050},
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{",", xfy, 1000},
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{".", xfy, 999},
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{"\\+", fy, 900},
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{"not", fy, 900},
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{"=", xfx, 700},
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{"\\=", xfx, 700},
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{"is", xfx, 700},
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{"=..", xfx, 700},
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{"==", xfx, 700},
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{"\\==", xfx, 700},
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{"@<", xfx, 700},
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{"@>", xfx, 700},
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{"@=<", xfx, 700},
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{"@>=", xfx, 700},
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{"=:=", xfx, 700},
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{"=\\=", xfx, 700},
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{"<", xfx, 700},
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{">", xfx, 700},
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{"=<", xfx, 700},
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{">=", xfx, 700},
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{":", xfy, 600},
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{"+", yfx, 500},
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{"-", yfx, 500},
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{"/\\", yfx, 500},
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{"\\/", yfx, 500},
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{"#", yfx, 500},
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{"+", fx, 500},
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{"-", fx, 500},
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{"\\", fx, 500},
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{"*", yfx, 400},
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{"/", yfx, 400},
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{"<<", yfx, 400},
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{">>", yfx, 400},
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{"mod", xfx, 300},
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{"//", yfx, 400},
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{"**", xfx, 200},
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{"^", xfy, 200}
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};
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static void
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InitOps(void)
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{
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unsigned int i;
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for (i = 0; i < sizeof(Ops) / sizeof(*Ops); ++i)
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SetOp(Ops[i].opPrio, Ops[i].opType, Ops[i].opName);
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}
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static void
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InitDebug(void)
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{
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Atom At;
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#ifdef DEBUG
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int i;
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for (i = 1; i < 20; ++i)
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Option[i] = 0;
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if (output_msg) {
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char ch;
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opcode(_Ystop);
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#if !SHORT_INTS
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YP_fprintf(YP_stderr,"absmi address:%x\n", Unsigned(FunAdr(absmi)));
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#else
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YP_fprintf(YP_stderr,"absmi address:%lx\n", Unsigned(FunAdr(absmi)));
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#endif
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YP_fprintf(YP_stderr,"Set Trace Options:\n");
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YP_fprintf(YP_stderr,"a getch\t\tb token\t\tc Lookup\td LookupVar\ti Index\n");
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YP_fprintf(YP_stderr,"e SetOp\t\tf compile\tg icode\t\th boot\t\tl log\n");
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YP_fprintf(YP_stderr,"m Machine\n");
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while ((ch = YP_putchar(YP_getchar())) != '\n')
|
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if (ch >= 'a' && ch <= 'z')
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Option[ch - 'a' + 1] = 1;
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if (Option['l' - 96]) {
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logfile = YP_fopen(LOGFILE, "w");
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if (logfile == Nill) {
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YP_fprintf(YP_stderr,"can not open %s\n", LOGFILE);
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YP_getchar();
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exit(0);
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}
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YP_fprintf(YP_stderr,"logging session to file 'logfile'\n");
|
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#ifdef MAC
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|
SetTextFile(LOGFILE);
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lp = my_line;
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curfile = Nill;
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#endif
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}
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}
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#endif
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/* Set at half leash */
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At = LookupAtom("$leash");
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PutValue(At, MkIntTerm(10));
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}
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void
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InitCPred(char *Name, int Arity, CPredicate code, int flags)
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|
{
|
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Atom atom = LookupAtom(Name);
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PredEntry *pe = RepPredProp(PredProp(atom, Arity));
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pe->PredFlags = flags | StandardPredFlag | CPredFlag;
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pe->TrueCodeOfPred = pe->CodeOfPred = (CODEADDR) code;
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pe->OpcodeOfPred = opcode(_Ystop);
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pe->ModuleOfPred = CurrentModule;
|
|
if (!(flags & UserCPredFlag)) {
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|
c_predicates[NUMBER_OF_CPREDS] = code;
|
|
pe->StateOfPred = NUMBER_OF_CPREDS;
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NUMBER_OF_CPREDS++;
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}
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|
}
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|
|
void
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InitCmpPred(char *Name, int Arity, CmpPredicate cmp_code, CPredicate code, int flags)
|
|
{
|
|
Atom atom = LookupAtom(Name);
|
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PredEntry *pe = RepPredProp(PredProp(atom, Arity));
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|
|
pe->PredFlags = flags | StandardPredFlag | CPredFlag;
|
|
pe->CodeOfPred = (CODEADDR) code;
|
|
c_predicates[NUMBER_OF_CPREDS] = code;
|
|
pe->StateOfPred = NUMBER_OF_CPREDS;
|
|
NUMBER_OF_CPREDS++;
|
|
pe->TrueCodeOfPred = (CODEADDR) cmp_code;
|
|
cmp_funcs[NUMBER_OF_CMPFUNCS].p = pe;
|
|
cmp_funcs[NUMBER_OF_CMPFUNCS].f = cmp_code;
|
|
NUMBER_OF_CMPFUNCS++;
|
|
pe->OpcodeOfPred = opcode(_Ystop);
|
|
}
|
|
|
|
void
|
|
InitAsmPred(char *Name, int Arity, int code, CPredicate def, int flags)
|
|
{
|
|
Atom atom = LookupAtom(Name);
|
|
PredEntry *pe = RepPredProp(PredProp(atom, Arity));
|
|
|
|
pe->PredFlags = flags | StandardPredFlag | (code);
|
|
pe->FirstClause = pe->LastClause = NIL;
|
|
if (def != NULL) {
|
|
pe->CodeOfPred = pe->TrueCodeOfPred = (CODEADDR)def;
|
|
c_predicates[NUMBER_OF_CPREDS] = def;
|
|
pe->StateOfPred = NUMBER_OF_CPREDS;
|
|
NUMBER_OF_CPREDS++;
|
|
pe->OpcodeOfPred = opcode(_Ystop);
|
|
} else {
|
|
pe->OpcodeOfPred = opcode(_undef_p);
|
|
pe->TrueCodeOfPred = pe->CodeOfPred =
|
|
(CODEADDR)(&(pe->OpcodeOfPred));
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
CleanBack(PredEntry *pe, CPredicate Start, CPredicate Cont)
|
|
{
|
|
yamop *code;
|
|
if (pe->FirstClause != pe->LastClause || pe->TrueCodeOfPred !=
|
|
pe->FirstClause || pe->CodeOfPred != pe->FirstClause) {
|
|
Error(SYSTEM_ERROR,TermNil,
|
|
"initiating a C Pred with backtracking");
|
|
return;
|
|
}
|
|
code = (yamop *)(pe->FirstClause);
|
|
if (pe->PredFlags & UserCPredFlag)
|
|
code->opc = opcode(_try_userc);
|
|
else
|
|
code->opc = opcode(_try_c);
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 2);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
c_predicates[pe->StateOfPred] = Start;
|
|
code->u.lds.d = (CODEADDR) Start;
|
|
code = NEXTOP(code,lds);
|
|
if (pe->PredFlags & UserCPredFlag)
|
|
code->opc = opcode(_retry_userc);
|
|
else
|
|
code->opc = opcode(_retry_c);
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 1);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
c_predicates[pe->StateOfPred+1] = Cont;
|
|
code->u.lds.d = (CODEADDR) Cont;
|
|
}
|
|
|
|
|
|
void
|
|
InitCPredBack(char *Name, int Arity, int Extra, CPredicate Start, CPredicate Cont, int flags)
|
|
{
|
|
PredEntry *pe;
|
|
Atom atom = LookupAtom(Name);
|
|
|
|
pe = RepPredProp(PredProp(atom, Arity));
|
|
if (pe->FirstClause != NIL)
|
|
CleanBack(pe, Start, Cont);
|
|
else {
|
|
Clause *cl;
|
|
yamop *code = ((Clause *)NIL)->ClCode;
|
|
pe->PredFlags = CompiledPredFlag | StandardPredFlag;
|
|
#ifdef YAPOR
|
|
pe->PredFlags |= SequentialPredFlag;
|
|
#endif /* YAPOR */
|
|
cl = (Clause
|
|
*)AllocCodeSpace((CELL)NEXTOP(NEXTOP(NEXTOP(code,lds),lds),e));
|
|
if (cl == NIL) {
|
|
Error(SYSTEM_ERROR,TermNil,"No Heap Space in InitCPredBack");
|
|
return;
|
|
}
|
|
cl->u.ClValue = 0;
|
|
cl->ClFlags = 0;
|
|
cl->Owner = LookupAtom("user");
|
|
code = cl->ClCode;
|
|
pe->TrueCodeOfPred = pe->CodeOfPred =
|
|
pe->FirstClause = pe->LastClause = (CODEADDR)code;
|
|
if (flags & UserCPredFlag)
|
|
pe->OpcodeOfPred = code->opc = opcode(_try_userc);
|
|
else
|
|
pe->OpcodeOfPred = code->opc = opcode(_try_c);
|
|
code->u.lds.d = (CODEADDR) Start;
|
|
pe->StateOfPred = NUMBER_OF_CPREDS;
|
|
c_predicates[NUMBER_OF_CPREDS] = Start;
|
|
NUMBER_OF_CPREDS++;
|
|
code->u.lds.p = (CODEADDR) pe;
|
|
code->u.lds.s = Arity;
|
|
code->u.lds.extra = Extra;
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 2);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
code = NEXTOP(code,lds);
|
|
if (flags & UserCPredFlag)
|
|
code->opc = opcode(_retry_userc);
|
|
else
|
|
code->opc = opcode(_retry_c);
|
|
code->u.lds.d = (CODEADDR) Cont;
|
|
c_predicates[NUMBER_OF_CPREDS] = Cont;
|
|
NUMBER_OF_CPREDS++;
|
|
code->u.lds.p = (CODEADDR) pe;
|
|
code->u.lds.s = Arity;
|
|
code->u.lds.extra = Extra;
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(code, 1);
|
|
PUT_YAMOP_SEQ(code);
|
|
#endif /* YAPOR */
|
|
code = NEXTOP(code,lds);
|
|
code->opc = opcode(_Ystop);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
InitStdPreds(void)
|
|
{
|
|
InitCPreds();
|
|
InitBackCPreds();
|
|
}
|
|
|
|
static void
|
|
InitFlags(void)
|
|
{
|
|
/* note that heap_regs must be set first */
|
|
|
|
#if USE_GMP
|
|
yap_flags[YAP_INT_BOUNDED_FLAG] = 0;
|
|
#else
|
|
yap_flags[YAP_INT_BOUNDED_FLAG] = 1;
|
|
#endif
|
|
yap_flags[MAX_ARITY_FLAG] = -1;
|
|
yap_flags[INTEGER_ROUNDING_FLAG] = 0;
|
|
yap_flags[YAP_MAX_INTEGER_FLAG] = (Int)(~((CELL)1 << (sizeof(Int)*8-1)));
|
|
yap_flags[YAP_MIN_INTEGER_FLAG] = (Int)(((CELL)1 << (sizeof(Int)*8-1)));
|
|
yap_flags[CHAR_CONVERSION_FLAG] = 1;
|
|
yap_flags[YAP_DOUBLE_QUOTES_FLAG] = 1;
|
|
yap_flags[YAP_TO_CHARS_FLAG] = QUINTUS_TO_CHARS;
|
|
yap_flags[LANGUAGE_MODE_FLAG] = 0;
|
|
yap_flags[STRICT_ISO_FLAG] = FALSE;
|
|
yap_flags[SPY_CREEP_FLAG] = 0;
|
|
yap_flags[SOURCE_MODE_FLAG] = FALSE;
|
|
yap_flags[CHARACTER_ESCAPE_FLAG] = ISO_CHARACTER_ESCAPES;
|
|
yap_flags[WRITE_QUOTED_STRING_FLAG] = FALSE;
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
yap_flags[ALLOW_ASSERTING_STATIC_FLAG] = FALSE;
|
|
#else
|
|
yap_flags[ALLOW_ASSERTING_STATIC_FLAG] = TRUE;
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
InitCodes(void)
|
|
{
|
|
Atom
|
|
AtomAltNot,
|
|
#ifdef COROUTINING
|
|
AtomArrayAccess,
|
|
#endif
|
|
AtomArrow,
|
|
AtomBraces,
|
|
AtomEq,
|
|
AtomGVar,
|
|
AtomNot,
|
|
AtomQuery,
|
|
AtomSemic,
|
|
AtomSpiedMetaCall,
|
|
AtomStream,
|
|
AtomStreamPos,
|
|
AtomVar;
|
|
|
|
#ifdef YAPOR
|
|
heap_regs->seq_def = TRUE;
|
|
heap_regs->getworkfirsttimecode.opc = opcode(_getwork_first_time);
|
|
heap_regs->getworkcode.opc = opcode(_getwork);
|
|
heap_regs->getworkcode.u.ld.p = (CODEADDR)RepPredProp(PredProp(LookupAtom("$getwork"), 0));
|
|
INIT_YAMOP_LTT(&(heap_regs->getworkcode), 0);
|
|
heap_regs->getworkcode_seq.opc = opcode(_getwork_seq);
|
|
INIT_YAMOP_LTT(&(heap_regs->getworkcode_seq), 0);
|
|
heap_regs->getworkcode_seq.u.ld.p = (CODEADDR)RepPredProp(PredProp(LookupAtom("$getwork_seq"), 0));
|
|
#endif /* YAPOR */
|
|
#ifdef TABLING
|
|
heap_regs->tablecompletioncode.opc = opcode(_table_completion);
|
|
heap_regs->tableanswerresolutioncode.opc = opcode(_table_answer_resolution);
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(&(heap_regs->tablecompletioncode), 0);
|
|
INIT_YAMOP_LTT(&(heap_regs->tableanswerresolutioncode), 0);
|
|
#endif /* YAPOR */
|
|
#endif /* TABLING */
|
|
heap_regs->failcode = opcode(_op_fail);
|
|
|
|
heap_regs->trustfailcode = opcode(_trust_fail);
|
|
|
|
heap_regs->env_for_yes_code.op = opcode(_call);
|
|
heap_regs->env_for_yes_code.s = -Signed(RealEnvSize);
|
|
heap_regs->env_for_yes_code.l = NULL;
|
|
heap_regs->env_for_yes_code.l2 = NULL;
|
|
heap_regs->yescode = opcode(_Ystop);
|
|
heap_regs->undef_op = opcode(_undef_p);
|
|
heap_regs->index_op = opcode(_index_pred);
|
|
|
|
#ifdef YAPOR
|
|
heap_regs->nocode.opc = opcode(_Nstop);
|
|
INIT_YAMOP_LTT(&(heap_regs->nocode), 1);
|
|
#else
|
|
heap_regs->nocode = opcode(_Nstop);
|
|
#endif /* YAPOR */
|
|
|
|
((yamop *)(&heap_regs->rtrycode))->opc = opcode(_retry_and_mark);
|
|
((yamop *)(&heap_regs->rtrycode))->u.ld.s = 0;
|
|
((yamop *)(&heap_regs->rtrycode))->u.ld.d = NIL;
|
|
#ifdef YAPOR
|
|
INIT_YAMOP_LTT(&(heap_regs->rtrycode), 1);
|
|
#endif /* YAPOR */
|
|
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
INIT_LOCK(heap_regs->free_blocks_lock);
|
|
INIT_LOCK(heap_regs->heap_used_lock);
|
|
INIT_LOCK(heap_regs->heap_top_lock);
|
|
INIT_LOCK(heap_regs->dead_clauses_lock);
|
|
#endif /* YAPOR */
|
|
heap_regs->clausecode.arity = 0;
|
|
heap_regs->clausecode.clause = NIL;
|
|
heap_regs->clausecode.func = NIL;
|
|
|
|
heap_regs->invisiblechain.Entry = 0;
|
|
INIT_RWLOCK(heap_regs->invisiblechain.AERWLock);
|
|
|
|
heap_regs->consultlow = (consult_obj *)AllocCodeSpace(sizeof(consult_obj)*InitialConsultCapacity);
|
|
if (heap_regs->consultlow == NIL) {
|
|
Error(SYSTEM_ERROR,TermNil,"No Heap Space in InitCodes");
|
|
return;
|
|
}
|
|
heap_regs->consultcapacity = InitialConsultCapacity;
|
|
heap_regs->profiling = FALSE;
|
|
heap_regs->update_mode = 0;
|
|
heap_regs->consultbase = heap_regs->consultsp =
|
|
heap_regs->consultlow + heap_regs->consultcapacity;
|
|
heap_regs->maxdepth = 0;
|
|
heap_regs->maxlist = 0;
|
|
|
|
heap_regs->atprompt = 0;
|
|
#ifdef COROUTINING
|
|
heap_regs->num_of_atts = 0; /* initially no attributes have been defined */
|
|
#endif
|
|
|
|
/* system boots in compile mode */
|
|
heap_regs->static_predicates_marked = TRUE;
|
|
/* use Quintus compatible atom_chars and number_chars, not ISO compatible */
|
|
heap_regs->static_predicates_marked = FALSE;
|
|
|
|
heap_regs->int_keys_size = INT_KEYS_DEFAULT_SIZE;
|
|
heap_regs->int_keys_timestamp = 0;
|
|
heap_regs->IntKeys = NULL;
|
|
heap_regs->int_bb_keys_size = INT_KEYS_DEFAULT_SIZE;
|
|
heap_regs->IntBBKeys = NULL;
|
|
heap_regs->char_conversion_table = NULL;
|
|
heap_regs->char_conversion_table2 = NULL;
|
|
heap_regs->number_of_cpreds = 0;
|
|
heap_regs->number_of_cmpfuncs = 0;
|
|
heap_regs->no_of_modules = 1;
|
|
heap_regs->primitives_module = 0;
|
|
heap_regs->user_module = 1;
|
|
heap_regs->atom_abol = LookupAtom("$abol");
|
|
AtomAltNot = LookupAtom("not");
|
|
heap_regs->atom_append = LookupAtom ("append");
|
|
heap_regs->atom_array = LookupAtom("$array");
|
|
#ifdef COROUTINING
|
|
AtomArrayAccess = LookupAtom("$array_arg");
|
|
#endif
|
|
AtomArrow = LookupAtom("->");
|
|
heap_regs->atom_assert = LookupAtom(":-");
|
|
heap_regs->atom_alarm = LookupAtom("$alarm");
|
|
AtomBraces = LookupAtom("{}");
|
|
heap_regs->atom_b = LookupAtom("$last_choice_pt");
|
|
heap_regs->atom_break = LookupAtom("$break");
|
|
heap_regs->atom_call = LookupAtom("call");
|
|
heap_regs->atom_catch = LookupAtom("$catch");
|
|
heap_regs->atom_comma = LookupAtom(",");
|
|
heap_regs->atom_cpu_time = LookupAtom("cputime");
|
|
heap_regs->atom_csult = LookupAtom("$csult");
|
|
heap_regs->atom_cut = LookupAtom("!");
|
|
heap_regs->atom_cut_by = LookupAtom("$cut_by");
|
|
#ifdef EUROTRA
|
|
#ifdef SFUNC
|
|
heap_regs->atom_dollar_undef = MkAtomTerm(LookupAtom("$undef"));
|
|
#endif
|
|
#endif
|
|
heap_regs->atom_e = LookupAtom("e");
|
|
heap_regs->atom_e_q = LookupAtom("=");
|
|
heap_regs->atom_eof = LookupAtom ("end_of_file");
|
|
AtomEq = LookupAtom("=");
|
|
#ifdef EUROTRA
|
|
heap_regs->atom_f_b = LookupAtom("fb");
|
|
#endif
|
|
heap_regs->atom_fail = LookupAtom("fail");
|
|
heap_regs->atom_false = LookupAtom("false");
|
|
heap_regs->atom_fast = LookupAtom("$fast");
|
|
heap_regs->atom_g_t = LookupAtom(">");
|
|
heap_regs->atom_gc = LookupAtom("$gc");
|
|
heap_regs->atom_gc_margin = LookupAtom("$gc_margin");
|
|
heap_regs->atom_gc_trace = LookupAtom("$gc_trace");
|
|
heap_regs->atom_gc_verbose = LookupAtom("$gc_verbose");
|
|
AtomGVar = LookupAtom("var");
|
|
heap_regs->atom_global = LookupAtom("global_sp");
|
|
heap_regs->atom_heap_used = LookupAtom("heapused");
|
|
heap_regs->atom_index = LookupAtom("$doindex");
|
|
heap_regs->atom_inf = LookupAtom("inf");
|
|
heap_regs->atom_l_t = LookupAtom("<");
|
|
heap_regs->atom_local = LookupAtom("local_sp");
|
|
heap_regs->atom_meta_call = LookupAtom("$call");
|
|
heap_regs->atom_minus = LookupAtom("-");
|
|
heap_regs->atom_nan = LookupAtom("nan");
|
|
AtomNot = LookupAtom("\\+");
|
|
heap_regs->atom_otherwise = LookupAtom("otherwise");
|
|
heap_regs->atom_pi = LookupAtom("pi");
|
|
heap_regs->atom_plus = LookupAtom("+");
|
|
heap_regs->atom_portray = LookupAtom("$portray");
|
|
heap_regs->atom_profile = LookupAtom("$profile");
|
|
AtomQuery = LookupAtom("?-");
|
|
heap_regs->atom_random = LookupAtom("random");
|
|
heap_regs->atom_read = LookupAtom("read");
|
|
heap_regs->atom_repeat = LookupAtom("repeat");
|
|
heap_regs->atom_restore_regs = LookupAtom("$restore_regs");
|
|
AtomSemic = LookupAtom(";");
|
|
heap_regs->atom_stack_free = LookupAtom("stackfree");
|
|
AtomStream = LookupAtom ("$stream");
|
|
AtomStreamPos = LookupAtom ("$stream_position");
|
|
heap_regs->atom_throw = LookupAtom("$throw");
|
|
heap_regs->atom_true = LookupAtom("true");
|
|
AtomSpiedMetaCall = LookupAtom("$spied_meta_call");
|
|
heap_regs->atom_user = LookupAtom ("user");
|
|
heap_regs->atom_usr_err = LookupAtom ("user_error");
|
|
heap_regs->atom_usr_in = LookupAtom ("user_input");
|
|
heap_regs->atom_usr_out = LookupAtom ("user_output");
|
|
AtomVar = LookupAtom("$VAR");
|
|
heap_regs->atom_version_number = LookupAtom("$version_name");
|
|
heap_regs->atom_write = LookupAtom ("write");
|
|
#ifdef USE_SOCKET
|
|
heap_regs->functor_af_inet = MkFunctor(LookupAtom("AF_INET"),2);
|
|
heap_regs->functor_af_local = MkFunctor(LookupAtom("AF_LOCAL"),1);
|
|
heap_regs->functor_af_unix = MkFunctor(LookupAtom("AF_UNIX"),1);
|
|
#endif
|
|
heap_regs->functor_alt_not = MkFunctor(AtomAltNot, 1);
|
|
#ifdef COROUTINING
|
|
heap_regs->functor_array_entry = MkFunctor(AtomArrayAccess, 3);
|
|
#endif
|
|
heap_regs->functor_arrow = MkFunctor(AtomArrow, 2);
|
|
heap_regs->functor_assert = MkFunctor(AtomAssert, 2);
|
|
#ifdef COROUTINING
|
|
heap_regs->functor_att_goal = MkFunctor(LookupAtom("$att_do"),2);
|
|
#endif
|
|
heap_regs->functor_braces = MkFunctor(AtomBraces, 1);
|
|
heap_regs->functor_call = MkFunctor(AtomCall, 1);
|
|
heap_regs->functor_cut_by = MkFunctor(AtomCutBy, 1);
|
|
heap_regs->functor_comma = MkFunctor(AtomComma, 2);
|
|
heap_regs->functor_csult = MkFunctor(AtomCsult, 1);
|
|
heap_regs->functor_eq = MkFunctor(AtomEq, 2);
|
|
heap_regs->functor_g_atom = MkFunctor(LookupAtom("atom"), 1);
|
|
heap_regs->functor_g_atomic = MkFunctor(LookupAtom("atomic"), 1);
|
|
heap_regs->functor_g_compound = MkFunctor(LookupAtom("compound"), 1);
|
|
heap_regs->functor_g_float = MkFunctor(LookupAtom("float"), 1);
|
|
heap_regs->functor_g_integer = MkFunctor(LookupAtom("integer"), 1);
|
|
heap_regs->functor_g_number = MkFunctor(LookupAtom("number"), 1);
|
|
heap_regs->functor_g_primitive = MkFunctor(LookupAtom("primitive"), 1);
|
|
heap_regs->functor_g_var = MkFunctor(AtomGVar, 1);
|
|
heap_regs->functor_list = MkFunctor(LookupAtom("."), 2);
|
|
heap_regs->functor_module = MkFunctor(LookupAtom(":"), 2);
|
|
#ifdef MULTI_ASSIGNMENT_VARIABLES
|
|
heap_regs->functor_mutable = MkFunctor(LookupAtom("$mutable_variable"),
|
|
sizeof(timed_var)/sizeof(CELL));
|
|
#endif
|
|
heap_regs->functor_not = MkFunctor(AtomNot, 1);
|
|
heap_regs->functor_or = MkFunctor(AtomSemic, 2);
|
|
heap_regs->functor_portray = MkFunctor(AtomPortray, 1);
|
|
heap_regs->functor_query = MkFunctor(AtomQuery, 1);
|
|
heap_regs->functor_spied_meta_call = MkFunctor(AtomSpiedMetaCall, 1);
|
|
heap_regs->functor_stream = MkFunctor (AtomStream, 1);
|
|
heap_regs->functor_stream_pos = MkFunctor (AtomStreamPos, 3);
|
|
heap_regs->functor_stream_eOS = MkFunctor (LookupAtom("end_of_stream"), 1);
|
|
heap_regs->functor_v_bar = MkFunctor(LookupAtom("|"), 2);
|
|
heap_regs->functor_var = MkFunctor(AtomVar, 1);
|
|
#ifdef EUROTRA
|
|
heap_regs->term_dollar_u = MkAtomTerm(LookupAtom("$u"));
|
|
#endif
|
|
heap_regs->term_refound_var = MkAtomTerm(LookupAtom("$I_FOUND_THE_VARIABLE_AGAIN"));
|
|
heap_regs->n_of_file_aliases = 0;
|
|
heap_regs->file_aliases = NULL;
|
|
heap_regs->foreign_code_loaded = NULL;
|
|
heap_regs->yap_lib_dir = NULL;
|
|
heap_regs->size_of_overflow = 0;
|
|
/* make sure no one else can use these two atoms */
|
|
CurrentModule = 1;
|
|
heap_regs->pred_goal_expansion = RepPredProp(PredProp(LookupAtom("goal_expansion"),3));
|
|
CurrentModule = 0;
|
|
heap_regs->dead_clauses = NULL;
|
|
heap_regs->pred_meta_call = RepPredProp(PredProp(heap_regs->atom_meta_call,3));
|
|
ReleaseAtom(AtomOfTerm(heap_regs->term_refound_var));
|
|
}
|
|
|
|
static void
|
|
InitVersion(void)
|
|
{
|
|
PutValue(LookupAtom("$version_name"),
|
|
MkAtomTerm(LookupAtom(version_number)));
|
|
}
|
|
|
|
void
|
|
InitYaamRegs(void)
|
|
{
|
|
Atom at;
|
|
PredEntry *undefpe;
|
|
|
|
#if PUSH_REGS
|
|
/* Guarantee that after a longjmp we go back to the original abstract
|
|
machine registers */
|
|
regp = &standard_regs;
|
|
#endif /* PUSH_REGS */
|
|
PutValue (AtomBreak, MkIntTerm (0));
|
|
PutValue (AtomIndex, MkAtomTerm (AtomTrue));
|
|
AuxSp = (CELL *)AuxTop;
|
|
TR = (tr_fr_ptr)TrailBase;
|
|
#ifdef COROUTINING
|
|
H = H0 = ((CELL *) GlobalBase)+2048;
|
|
#else
|
|
H = H0 = (CELL *) GlobalBase;
|
|
#endif
|
|
LCL0 = ASP = (CELL *) LocalBase;
|
|
/* notice that an initial choice-point and environment
|
|
*must* be created since for the garbage collector to work */
|
|
B = NULL;
|
|
ENV = NULL;
|
|
P = CP = (yamop *)YESCODE;
|
|
#ifdef DEPTH_LIMIT
|
|
DEPTH = RESET_DEPTH();
|
|
#endif
|
|
at = FullLookupAtom("$undefp");
|
|
{
|
|
Prop p = GetPredProp (at, 1);
|
|
if (p == NIL) {
|
|
UndefCode = NULL;
|
|
} else {
|
|
undefpe = RepPredProp (p);
|
|
UndefCode = (CELL *) & (undefpe->CodeOfPred);
|
|
}
|
|
}
|
|
STATIC_PREDICATES_MARKED = FALSE;
|
|
#ifdef FROZEN_REGS
|
|
H = HB = H0 = H_FZ = H_BASE;
|
|
#ifdef SBA
|
|
BSEG =
|
|
#endif /* SBA */
|
|
BBREG = B_FZ = B_BASE;
|
|
TR = TR_FZ = TR_BASE;
|
|
#endif /* FROZEN_REGS */
|
|
|
|
}
|
|
|
|
|
|
#if defined(YAPOR) || defined(TABLING)
|
|
static void
|
|
InitYapOr(int Heap,
|
|
int Stack,
|
|
int Trail,
|
|
int aux_number_workers,
|
|
int aux_scheduler_loop,
|
|
int aux_delayed_release_load) {
|
|
|
|
#ifdef YAPOR
|
|
worker_id = 0;
|
|
#endif
|
|
|
|
/* starting message */
|
|
#ifdef YAPOR
|
|
if (aux_number_workers > MAX_WORKERS)
|
|
abort_optyap("excessive number of workers");
|
|
#ifdef ENV_COPY
|
|
INFORMATION_MESSAGE("YapOr: copy model - %d worker%s", aux_number_workers, aux_number_workers == 1 ? "":"s");
|
|
#elif ACOW
|
|
INFORMATION_MESSAGE("YapOr: acow model - %d worker%s", aux_number_workers, aux_number_workers == 1 ? "":"s");
|
|
#else /* SBA */
|
|
INFORMATION_MESSAGE("YapOr: sba model - %d worker%s", aux_number_workers, aux_number_workers == 1 ? "":"s");
|
|
#endif /* ENV_COPY - ACOW - SBA */
|
|
#endif /* YAPOR */
|
|
#ifdef TABLING
|
|
#ifdef TABLING_BATCHED_SCHEDULING
|
|
INFORMATION_MESSAGE("YapTab: batched scheduling");
|
|
#else /* TABLING_LOCAL_SCHEDULING */
|
|
INFORMATION_MESSAGE("YapTab: local scheduling");
|
|
#endif /* TABLING_SCHEDULING */
|
|
#endif /* TABLING */
|
|
#ifdef YAPOR
|
|
map_memory(Heap, Stack, Trail, aux_number_workers);
|
|
#else
|
|
InitMemory (Trail, Heap, Stack);
|
|
#endif
|
|
/* global initializations */
|
|
init_global(aux_number_workers, aux_scheduler_loop, aux_delayed_release_load);
|
|
init_signals();
|
|
}
|
|
#endif
|
|
|
|
void
|
|
InitStacks(int Heap,
|
|
int Stack,
|
|
int Trail,
|
|
int aux_number_workers,
|
|
int aux_scheduler_loop,
|
|
int aux_delayed_release_load
|
|
)
|
|
{
|
|
int i;
|
|
|
|
/* initialise system stuff */
|
|
|
|
#if PUSH_REGS
|
|
/* In this case we need to initialise the abstract registers */
|
|
regp = &standard_regs;
|
|
/* the emulator will eventually copy them to its own local
|
|
register array, but for now they exist */
|
|
#endif /* PUSH_REGS */
|
|
|
|
/* Init signal handling and time */
|
|
/* also init memory page size, required by later functions */
|
|
InitSysbits ();
|
|
|
|
/* sanity checking for data areas */
|
|
if (Trail < MinTrailSpace)
|
|
Trail = MinTrailSpace;
|
|
// if (Stack < MinStackSpace)
|
|
// Stack = MinStackSpace;
|
|
#if defined(YAPOR) || defined(TABLING)
|
|
{
|
|
#ifdef USE_HEAP
|
|
int OKHeap = MinHeapSpace+(sizeof(struct global_data) + aux_number_workers*sizeof(struct local_data))/1024;
|
|
#else
|
|
int OKHeap = MinHeapSpace+(sizeof(struct global_data) + aux_number_workers*sizeof(struct local_data)+OPT_CHUNK_SIZE)/1024;
|
|
#endif
|
|
if (Heap < OKHeap)
|
|
Heap = OKHeap;
|
|
}
|
|
#else
|
|
if (Heap < MinHeapSpace)
|
|
Heap = MinHeapSpace;
|
|
#endif
|
|
|
|
#if defined(YAPOR) || defined(TABLING)
|
|
InitYapOr(Heap,
|
|
Stack,
|
|
Trail,
|
|
aux_number_workers,
|
|
aux_scheduler_loop,
|
|
aux_delayed_release_load);
|
|
#else /* Yap */
|
|
InitMemory (Trail, Heap, Stack);
|
|
#endif /* YAPOR || TABLING */
|
|
for (i = 0; i < MaxHash; ++i) {
|
|
INIT_RWLOCK(HashChain[i].AERWLock);
|
|
HashChain[i].Entry = NIL;
|
|
}
|
|
LookupAtomWithAddress("FoundVar",&(SF_STORE->AtFoundVar));
|
|
ReleaseAtom(AtomFoundVar);
|
|
LookupAtomWithAddress("[]",&(SF_STORE->AtNil));
|
|
LookupAtomWithAddress(".",&(SF_STORE->AtDot));
|
|
CreepFlag = MinStackGap;
|
|
PutValue(LookupAtom("$catch_counter"),
|
|
MkIntTerm(0));
|
|
/* InitAbsmi must be done before InitCodes */
|
|
#ifdef MPW
|
|
InitAbsmi(REGS, FunctorList);
|
|
#else
|
|
InitAbsmi();
|
|
#endif
|
|
InitCodes();
|
|
InitOps();
|
|
InitDebug();
|
|
InitVersion();
|
|
InitSysPath();
|
|
InitFlags();
|
|
InitModules();
|
|
InitStdPreds();
|
|
}
|
|
|