1053 lines
25 KiB
C
1053 lines
25 KiB
C
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/*************************************************************************
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* *
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* YAP Prolog %W% %G% *
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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: Yap.h.m4 *
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* mods: *
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* comments: main header file for YAP *
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* version: $Id: Yap.h,v 1.9 2002-06-01 04:29:01 vsc Exp $ *
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*************************************************************************/
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#include "config.h"
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/*
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#define RATIONAL_TREES 1
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#define DEPTH_LIMIT 1
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#define COROUTINING 1
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#define YAPOR 1
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#define ANALYST 1
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*/
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#define MULTI_ASSIGNMENT_VARIABLES 1
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#if defined(TABLING)
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#error Do not explicitly define TABLING
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#endif /* YAPOR */
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#if defined(TABLING_BATCHED_SCHEDULING) && defined(TABLING_LOCAL_SCHEDULING)
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#error Do not define multiple tabling scheduling strategies
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#endif /* TABLING_BATCHED_SCHEDULING || TABLING_LOCAL_SCHEDULING */
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#if defined(TABLING_BATCHED_SCHEDULING) || defined(TABLING_LOCAL_SCHEDULING)
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#define TABLING 1
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#endif /* TABLING_BATCHED_SCHEDULING || TABLING_LOCAL_SCHEDULING */
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#if defined(YAPOR)
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#error Do not explicitly define YAPOR
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#endif /* YAPOR */
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#if (defined(ENV_COPY) && (defined(ACOW) || defined(SBA))) || (defined(ACOW) && defined(SBA))
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#error Do not define multiple or-parallel models
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#endif /* (ENV_COPY && (ACOW || SBA)) || (ACOW && SBA) */
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#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
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#define YAPOR 1
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#endif /* ENV_COPY || ACOW || SBA */
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#if defined(TABLING) && (defined(ACOW) || defined(SBA))
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#error Currently TABLING only works with ENV_COPY
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#endif /* TABLING && (ACOW || SBA) */
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#ifdef YAPOR
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#define FIXED_STACKS 1
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#endif /* YAPOR */
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#if defined(YAPOR) || defined(TABLING)
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#undef TRAILING_REQUIRES_BRANCH
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#endif /* YAPOR || TABLING */
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#if ANALYST
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#ifdef USE_THREADED_CODE
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#undef USE_THREADED_CODE
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#endif
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#endif
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#ifdef COROUTINING
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#ifndef TERM_EXTENSIONS
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#define TERM_EXTENSIONS 1
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#endif
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#endif
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#ifdef SBA
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#ifdef YAPOR
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#ifndef FROZEN_STACKS
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#define FROZEN_STACKS 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_STACKS
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#define FROZEN_STACKS 1
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#endif
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#endif
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#ifdef _MSC_VER /* Microsoft's Visual C++ Compiler */
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/* adjust a config.h from mingw32 to work with vc++ */
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#ifdef HAVE_GCC
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#undef HAVE_GCC
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#endif
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#ifdef USE_THREADED_CODE
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#undef USE_THREADED_CODE
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#endif
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#define inline __inline
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#define YAP_VERSION "Yap-4.3.21"
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#define BIN_DIR "c:\\Program Files\\Yap\\bin"
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#define LIB_DIR "c:\\Program Files\\Yap\\lib\\Yap"
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#define SHARE_DIR "c:\\Program Files\\Yap\\share\\Yap"
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#ifdef HOST_ALIAS
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#undef HOST_ALIAS
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#endif
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#define HOST_ALIAS "i386-pc-win32"
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#ifdef HAVE_IEEEFP_H
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#undef HAVE_IEEEFP_H
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#endif
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#ifdef HAVE_UNISTD_H
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#undef HAVE_UNISTD_H
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#endif
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#ifdef HAVE_SYS_TIME_H
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#undef HAVE_SYS_TIME_H
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#endif
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#endif
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#ifdef __MINGW32__
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#ifndef _WIN32
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#define _WIN32 1
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#endif
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#endif
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#if HAVE_GCC
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#define MIN_ARRAY 0
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#define DUMMY_FILLER_FOR_ABS_TYPE
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#else
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#define MIN_ARRAY 1
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#define DUMMY_FILLER_FOR_ABS_TYPE int dummy;
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#endif
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#ifndef ADTDEFS_C
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#define EXTERN static
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#else
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#define EXTERN
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#endif
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/* truth-values */
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#define TRUE 1
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#define FALSE 0
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/* null pointer */
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#define NIL 0
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/* Basic types */
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/* defines integer types Int and UInt (unsigned) with the same size as a ptr
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** and integer types Short and UShort with half the size of a ptr
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*/
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#if SIZEOF_INT_P==4
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#if SIZEOF_INT==4
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/* */ typedef int Int;
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/* */ typedef unsigned int UInt;
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#elif SIZEOF_LONG_INT==4
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/* */ typedef long int Int;
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/* */ typedef unsigned long int UInt;
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#else
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# error Yap require integer types of the same size as a pointer
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#endif
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#if SIZEOF_SHORT_INT==2
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/* */ typedef short int Short;
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/* */ typedef unsigned short int UShort;
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#else
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# error Yap requires integer types half the size of a pointer
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#endif
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#elif SIZEOF_INT_P==8
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# if SIZEOF_INT==8
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/* */ typedef int Int;
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/* */ typedef unsigned int UInt;
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#elif SIZEOF_LONG_INT==8
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/* */ typedef long int Int;
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/* */ typedef unsigned long int UInt;
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# elif SIZEOF_LONG_LONG_INT==8
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/* */ typedef long long int Int;
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/* */ typedef unsigned long long int UInt;
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# else
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# error Yap requires integer types of the same size as a pointer
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# endif
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# if SIZEOF_SHORT_INT==4
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/* */ typedef short int Short;
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/* */ typedef unsigned short int UShort;
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# elif SIZEOF_INT==4
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/* */ typedef int Short;
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/* */ typedef short int UShort;
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# else
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# error Yap requires integer types half the size of a pointer
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# endif
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#else
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# error Yap requires pointers of size 4 or 8
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#endif
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/* */ typedef double Float;
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#if SIZEOF_INT<SIZEOF_INT_P
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#define SHORT_INTS 1
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#else
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#define SHORT_INTS 0
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#endif
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#if DEBUG
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extern char Option[20];
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#endif
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/* #define FORCE_SECOND_QUADRANT 1 */
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#if defined(FORCE_SECOND_QUADRANT)
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#define IN_SECOND_QUADRANT 1
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#define MMAP_ADDR 0x42000000
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#endif
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#if !IN_SECOND_QUADRANT
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#if __linux__ || __FreeBSD__ || __NetBSD__ || mips || __APPLE__
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#if defined(YAPOR) && defined(__alpha)
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#define MMAP_ADDR 0x40000000
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#elif mips
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#define MMAP_ADDR 0x02000000
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#elif __APPLE__
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#define MMAP_ADDR 0x01000000
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#else
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#define MMAP_ADDR 0x09000000
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#endif
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#elif __svr4__ || defined(__SVR4)
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#define MMAP_ADDR 0x02000000
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#elif defined(_WIN32) || defined(__CYGWIN__)
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#define MMAP_ADDR 0x30000000L
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#endif
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#endif /* !IN_SECOND_QUADRANT */
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#if defined(MMAP_ADDR) && (USE_MMAP || USE_SHMAT || _WIN32) && !__simplescalar__
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#define HEAP_INIT_BASE (MMAP_ADDR)
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#define AtomBase ((char *)MMAP_ADDR)
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#else
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#define HEAP_INIT_BASE ((CELL)HeapBase)
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#define AtomBase (HeapBase)
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#endif
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#ifndef SHORT_ADDRESSES
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# define LONG_ADDRESSES 1
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#else
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# define LONG_ADDRESSES 0
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#endif
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#ifndef ALIGN_LONGS
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#define ALIGN_LONGS 1
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#endif
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/* basic data types */
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typedef UInt CELL;
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typedef UShort BITS16;
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typedef Short SBITS16;
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typedef UInt BITS32;
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#if ALIGN_LONGS
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typedef CELL SFLAGS;
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#else
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typedef BITS16 SFLAGS;
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#endif
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typedef char *ADDR;
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typedef CELL OFFSET;
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typedef unsigned char *CODEADDR;
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#define WordSize sizeof(BITS16)
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#define CellSize sizeof(CELL)
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#define SmallSize sizeof(SMALLUNSGN)
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/* type casting macros */
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#define Addr(V) ((ADDR) (V))
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#define Unsigned(V) ((CELL) (V))
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#define Signed(V) ((Int) (V))
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#define CodePtr(V) ((CODEADDR)(V))
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#define CellPtr(V) ((CELL *)(V))
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#define OpCodePtr(V) ((OPCODE *)(V))
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#define OpRegPtr(V) ((OPREG *)(V))
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#define SmallPtr(V) ((SMALLUNSGN *)(V))
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#define WordPtr(V) ((BITS16 *)(V))
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#define DisplPtr(V) ((DISPREG *)(V))
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#define TermPtr(V) ((Term *) (V))
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/* Abstract Type Definitions for YAPProlog */
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typedef CELL Term;
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#if !defined(YAPOR) && !defined(THREADS)
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#include <nolocks.h>
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#else
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#ifdef i386
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#include <locks_x86.h>
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#endif
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#if defined(sparc) || defined(__sparc)
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#include <locks_sparc.h>
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#endif
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#ifdef mips
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#include <locks_mips.h>
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#endif
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#ifdef __alpha
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#include <locks_alpha.h>
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#endif
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#endif
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/********************** use an auxiliary function for ranges ************/
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#ifdef __GNUC__
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#define IN_BETWEEN(MIN,X,MAX) (Unsigned((Int)(X)-(Int)(MIN)) <= \
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Unsigned((Int)(MAX)-(Int)(MIN)) )
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#define OUTSIDE(MIN,X,MAX) (Unsigned((Int)(X)-(Int)(MIN)) > \
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Unsigned((Int)(MAX)-(Int)(MIN)) )
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#else
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#define IN_BETWEEN(MIN,X,MAX) ((void *)(X) >= (void *)(MIN) && (void *)(X) <= (void *)(MAX))
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#define OUTSIDE(MIN,X,MAX) ((void *)(X) < (void *)(MIN) || (void *)(X) > (void *)(MAX))
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#endif
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/* ************************* Atoms *************************************/
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#include "Atoms.h"
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/* ************************* Coroutining **********************************/
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#ifdef COROUTINING
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/* Support for co-routining */
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#include "corout.h"
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#endif
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/********* abstract machine registers **********************************/
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#include "amidefs.h"
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#include "Regs.h"
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#if defined(YAPOR) ||defined(THREADS)
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#ifdef mips
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#include <locks_mips_funcs.h>
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#endif
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#ifdef __alpha
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#include <locks_alpha_funcs.h>
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#endif
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#endif
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/************ variables concerned with Error Handling *************/
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#include <setjmp.h>
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#if defined(SIMICS) || !HAVE_SIGSETJMP
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#define sigjmp_buf jmp_buf
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#define sigsetjmp(Env, Arg) setjmp(Env)
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#define siglongjmp(Env, Arg) longjmp(Env, Arg)
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#endif
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extern sigjmp_buf RestartEnv; /* used to restart after an abort */
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/* Support for arrays */
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#include "arrays.h"
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/************ variables concerned with Error Handling *************/
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/* Types of Errors */
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typedef enum {
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YAP_NO_ERROR,
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FATAL_ERROR,
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INTERNAL_ERROR,
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PURE_ABORT,
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/* ISO_ERRORS */
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DOMAIN_ERROR_ARRAY_OVERFLOW,
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DOMAIN_ERROR_ARRAY_TYPE,
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DOMAIN_ERROR_IO_MODE,
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DOMAIN_ERROR_MUTABLE,
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DOMAIN_ERROR_NON_EMPTY_LIST,
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DOMAIN_ERROR_NOT_LESS_THAN_ZERO,
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DOMAIN_ERROR_NOT_NL,
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DOMAIN_ERROR_NOT_ZERO,
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DOMAIN_ERROR_OUT_OF_RANGE,
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DOMAIN_ERROR_OPERATOR_PRIORITY,
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DOMAIN_ERROR_OPERATOR_SPECIFIER,
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DOMAIN_ERROR_RADIX,
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DOMAIN_ERROR_SHIFT_COUNT_OVERFLOW,
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DOMAIN_ERROR_SOURCE_SINK,
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DOMAIN_ERROR_STREAM,
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DOMAIN_ERROR_STREAM_OR_ALIAS,
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DOMAIN_ERROR_STREAM_POSITION,
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DOMAIN_ERROR_TIMEOUT_SPEC,
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DOMAIN_ERROR_SYNTAX_ERROR_HANDLER,
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EVALUATION_ERROR_FLOAT_OVERFLOW,
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EVALUATION_ERROR_FLOAT_UNDERFLOW,
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EVALUATION_ERROR_INT_OVERFLOW,
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EVALUATION_ERROR_UNDEFINED,
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EVALUATION_ERROR_UNDERFLOW,
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EVALUATION_ERROR_ZERO_DIVISOR,
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EXISTENCE_ERROR_ARRAY,
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EXISTENCE_ERROR_SOURCE_SINK,
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EXISTENCE_ERROR_STREAM,
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INSTANTIATION_ERROR,
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PERMISSION_ERROR_ACCESS_PRIVATE_PROCEDURE,
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PERMISSION_ERROR_NEW_ALIAS_FOR_STREAM,
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PERMISSION_ERROR_CREATE_ARRAY,
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PERMISSION_ERROR_CREATE_OPERATOR,
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PERMISSION_ERROR_INPUT_BINARY_STREAM,
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PERMISSION_ERROR_INPUT_PAST_END_OF_STREAM,
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PERMISSION_ERROR_INPUT_STREAM,
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PERMISSION_ERROR_INPUT_TEXT_STREAM,
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PERMISSION_ERROR_MODIFY_STATIC_PROCEDURE,
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PERMISSION_ERROR_OPEN_SOURCE_SINK,
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PERMISSION_ERROR_OUTPUT_BINARY_STREAM,
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PERMISSION_ERROR_OUTPUT_STREAM,
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PERMISSION_ERROR_OUTPUT_TEXT_STREAM,
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PERMISSION_ERROR_RESIZE_ARRAY,
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PERMISSION_ERROR_REPOSITION_STREAM,
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REPRESENTATION_ERROR_CHARACTER,
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REPRESENTATION_ERROR_CHARACTER_CODE,
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REPRESENTATION_ERROR_MAX_ARITY,
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SYNTAX_ERROR,
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SYSTEM_ERROR,
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TYPE_ERROR_ARRAY,
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TYPE_ERROR_ATOM,
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TYPE_ERROR_ATOMIC,
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TYPE_ERROR_BYTE,
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TYPE_ERROR_CALLABLE,
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TYPE_ERROR_CHARACTER,
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TYPE_ERROR_COMPOUND,
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TYPE_ERROR_DBREF,
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TYPE_ERROR_DBTERM,
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TYPE_ERROR_EVALUABLE,
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TYPE_ERROR_FLOAT,
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TYPE_ERROR_INTEGER,
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TYPE_ERROR_KEY,
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TYPE_ERROR_LIST,
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TYPE_ERROR_NUMBER,
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TYPE_ERROR_PREDICATE_INDICATOR,
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TYPE_ERROR_PTR,
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TYPE_ERROR_UBYTE,
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TYPE_ERROR_VARIABLE,
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UNKNOWN_ERROR
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} yap_error_number;
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extern char *ErrorMessage; /* used to pass error messages */
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extern Term Error_Term; /* used to pass error terms */
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extern yap_error_number Error_TYPE; /* used to pass the error */
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typedef enum {
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YAP_INT_BOUNDED_FLAG = 0,
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MAX_ARITY_FLAG = 1,
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INTEGER_ROUNDING_FLAG = 2,
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YAP_MAX_INTEGER_FLAG = 3,
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YAP_MIN_INTEGER_FLAG = 4,
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CHAR_CONVERSION_FLAG = 5,
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YAP_DOUBLE_QUOTES_FLAG = 6,
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YAP_TO_CHARS_FLAG = 7,
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LANGUAGE_MODE_FLAG = 8,
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STRICT_ISO_FLAG = 9,
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SPY_CREEP_FLAG = 10,
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SOURCE_MODE_FLAG = 11,
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CHARACTER_ESCAPE_FLAG = 12,
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WRITE_QUOTED_STRING_FLAG = 13,
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ALLOW_ASSERTING_STATIC_FLAG = 14,
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HALT_AFTER_CONSULT_FLAG = 15,
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FAST_BOOT_FLAG = 16
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} yap_flags;
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#define STRING_AS_CHARS 0
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#define STRING_AS_ATOM 2
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#define QUINTUS_TO_CHARS 0
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#define ISO_TO_CHARS 1
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#define CPROLOG_CHARACTER_ESCAPES 0
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#define ISO_CHARACTER_ESCAPES 1
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#define SICSTUS_CHARACTER_ESCAPES 2
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#define NUMBER_OF_YAP_FLAGS FAST_BOOT_FLAG+1
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/************************ prototypes **********************************/
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#include "Yapproto.h"
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/************************ OPTYap configuration ************************/
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/* These must be included before unification handlers */
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#if defined(YAPOR) || defined(TABLING)
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#include "opt.config.h"
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#endif
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/***********************************************************************/
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/*
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absrectype Term = Int + Float + Atom + Pair + Appl + Ref + Var
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with AbsAppl(t) : *CELL -> Term
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and RepAppl(t) : Term -> *CELL
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and AbsPair(t) : *CELL -> Term
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and RepPair(t) : Term -> *CELL
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and IsIntTerm(t) = ...
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and IsAtomTerm(t) = ...
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and IsVarTerm(t) = ...
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and IsPairTerm(t) = ...
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and IsApplTerm(t) = ...
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and IsFloatTerm(t) = ...
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and IsRefTerm(t) = ...
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and IsNonVarTerm(t) = ! IsVar(t)
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and IsNumterm(t) = IsIntTerm(t) || IsFloatTerm(t)
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and IsAtomicTerm(t) = IsNumTerm(t) || IsAtomTerm(t)
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and IsPrimitiveTerm(t) = IsAtomicTerm(t) || IsRefTerm(t)
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and MkIntTerm(n) = ...
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and MkFloatTerm(f) = ...
|
|
and MkAtomTerm(a) = ...
|
|
and MkVarTerm(r) = ...
|
|
and MkApplTerm(f,n,args) = ...
|
|
and MkPairTerm(hd,tl) = ...
|
|
and MkRefTerm(R) = ...
|
|
|
|
and PtrOfTerm(t) : Term -> CELL * = ...
|
|
and IntOfTerm(t) : Term -> int = ...
|
|
and FloatOfTerm(t) : Term -> flt = ...
|
|
and AtomOfTerm(t) : Term -> Atom = ...
|
|
and VarOfTerm(t) : Term -> *Term = ....
|
|
and HeadOfTerm(t) : Term -> Term = ...
|
|
and TailOfTerm(t) : Term -> Term = ...
|
|
and FunctorOfTerm(t) : Term -> Functor = ...
|
|
and ArgOfTerm(i,t) : Term -> Term= ...
|
|
and RefOfTerm(t) : Term -> DBRef = ...
|
|
|
|
*/
|
|
|
|
/*
|
|
YAP can use several different tag schemes, according to the kind of
|
|
machine we are experimenting with.
|
|
*/
|
|
|
|
#if LONG_ADDRESSES && defined(OLD_TAG_SCHEME)
|
|
|
|
#include "Tags_32bits.h"
|
|
|
|
#endif /* LONG_ADDRESSES && defined(OLD_TAG_SCHEME) */
|
|
|
|
/* AIX will by default place mmaped segments at 0x30000000. This is
|
|
incompatible with the high tag scheme. Linux-ELF also does not like
|
|
if you place things in the lower addresses (power to the libc people).
|
|
*/
|
|
#if (defined(_AIX) || defined(_WIN32) || defined(sparc) || defined(__sparc) || defined(mips) || defined(__FreeBSD__) || defined(_POWER) || defined(__linux__) || defined(IN_SECOND_QUADRANT)) && !defined(TABLING)
|
|
#define USE_LOW32_TAGS 1
|
|
#endif
|
|
|
|
#if LONG_ADDRESSES && SIZEOF_INT_P==4 && !defined(OLD_TAG_SCHEME) && !defined(USE_LOW32_TAGS)
|
|
|
|
#include "Tags_32Ops.h"
|
|
|
|
#endif /* LONG_ADDRESSES && !defined(OLD_TAG_SCHEME) && !defined(USE_LOW32_TAGS) */
|
|
|
|
#if LONG_ADDRESSES && SIZEOF_INT_P==4 && !defined(OLD_TAG_SCHEME) && defined(USE_LOW32_TAGS)
|
|
|
|
#include "Tags_32LowTag.h"
|
|
|
|
#endif /* LONG_ADDRESSES && !defined(OLD_TAG_SCHEME) */
|
|
|
|
#if LONG_ADDRESSES && SIZEOF_INT_P==8 && !defined(OLD_TAG_SCHEME)
|
|
|
|
#include "Tags_64bits.h"
|
|
|
|
#endif /* LONG_ADDRESSES && SIZEOF_INT_P==8 && !defined(OLD_TAG_SCHEME) */
|
|
|
|
#if !LONG_ADDRESSES
|
|
|
|
#include "Tags_24bits.h"
|
|
|
|
#endif /* !LONG_ADDRESSES */
|
|
|
|
#ifdef TAG_LOW_BITS_32
|
|
#define MBIT 0x80000000
|
|
#define RBIT 0x40000000
|
|
|
|
#if IN_SECOND_QUADRANT
|
|
#define INVERT_RBIT 1 /* RBIT is 1 by default */
|
|
#endif
|
|
|
|
#else
|
|
|
|
#if defined(SBA) && defined(__linux__)
|
|
#define MBIT /* 0x20000000 */ MKTAG(0x1,0) /* mark bit */
|
|
#else
|
|
#define RBIT /* 0x20000000 */ MKTAG(0x1,0) /* relocation chain bit */
|
|
#define MBIT /* 0x40000000 */ MKTAG(0x2,0) /* mark bit */
|
|
#endif
|
|
#endif
|
|
|
|
#define TermSize sizeof(Term)
|
|
|
|
/************* variables related to memory allocation *******************/
|
|
/* must be before TermExt.h */
|
|
extern ADDR HeapBase,
|
|
LocalBase,
|
|
GlobalBase,
|
|
TrailBase, TrailTop,
|
|
ForeignCodeBase, ForeignCodeTop, ForeignCodeMax;
|
|
|
|
|
|
/* applies to unbound variables */
|
|
|
|
inline EXTERN Term * VarOfTerm(Term t);
|
|
|
|
inline EXTERN Term * VarOfTerm(Term t)
|
|
{
|
|
return (Term *) (t);
|
|
}
|
|
|
|
|
|
#if SBA
|
|
|
|
inline EXTERN Term MkVarTerm(void);
|
|
|
|
inline EXTERN Term MkVarTerm()
|
|
{
|
|
return (Term) ((*H = 0, H++));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN int IsUnboundVar(Term);
|
|
|
|
inline EXTERN int IsUnboundVar(Term t)
|
|
{
|
|
return (int) (t == 0);
|
|
}
|
|
|
|
|
|
#else
|
|
|
|
inline EXTERN Term MkVarTerm(void);
|
|
|
|
inline EXTERN Term MkVarTerm()
|
|
{
|
|
return (Term) ((*H = (CELL) H, H++));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN int IsUnboundVar(Term);
|
|
|
|
inline EXTERN int IsUnboundVar(Term t)
|
|
{
|
|
return (int) (*VarOfTerm(t) == (t));
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
inline EXTERN CELL * PtrOfTerm(Term);
|
|
|
|
inline EXTERN CELL * PtrOfTerm(Term t)
|
|
{
|
|
return (CELL *) (*(CELL *)(t));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Functor FunctorOfTerm(Term);
|
|
|
|
inline EXTERN Functor FunctorOfTerm(Term t)
|
|
{
|
|
return (Functor) (*RepAppl(t));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Term MkAtomTerm(Atom);
|
|
|
|
inline EXTERN Term MkAtomTerm(Atom a)
|
|
{
|
|
return (Term) (TAGGEDA(AtomTag, (CELL)(a)-HEAP_INIT_BASE));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Atom AtomOfTerm(Term t);
|
|
|
|
inline EXTERN Atom AtomOfTerm(Term t)
|
|
{
|
|
return (Atom) (HEAP_INIT_BASE+NonTagPart(t));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN int IsAtomTerm(Term);
|
|
|
|
inline EXTERN int IsAtomTerm(Term t)
|
|
{
|
|
return (int) (CHKTAG((t), AtomTag));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Term MkIntTerm(Int);
|
|
|
|
inline EXTERN Term MkIntTerm(Int n)
|
|
{
|
|
return (Term) (TAGGED(NumberTag, (n)));
|
|
}
|
|
|
|
|
|
/*
|
|
A constant to subtract or add to a well-known term, we assume no
|
|
overflow problems are possible
|
|
*/
|
|
|
|
inline EXTERN Term MkIntConstant(Int);
|
|
|
|
inline EXTERN Term MkIntConstant(Int n)
|
|
{
|
|
return (Term) (NONTAGGED(NumberTag, (n)));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN int IsIntTerm(Term);
|
|
|
|
inline EXTERN int IsIntTerm(Term t)
|
|
{
|
|
return (int) (CHKTAG((t), NumberTag));
|
|
}
|
|
|
|
|
|
|
|
/* Needed to handle numbers:
|
|
these two macros are fundamental in the integer/float conversions */
|
|
|
|
#ifdef M_WILLIAMS
|
|
#define IntInBnd(X) (TRUE)
|
|
#else
|
|
#ifdef TAGS_FAST_OPS
|
|
#define IntInBnd(X) (Unsigned( ( (Int)(X) >> (32-7) ) + 1) <= 1)
|
|
#else
|
|
#define IntInBnd(X) ( (X) < MAX_ABS_INT && \
|
|
(X) > -MAX_ABS_INT-1L )
|
|
#endif
|
|
#endif
|
|
#ifdef C_PROLOG
|
|
#define FlIsInt(X) ( (X) == (Int)(X) && IntInBnd((X)) )
|
|
#else
|
|
#define FlIsInt(X) ( FALSE )
|
|
#endif
|
|
|
|
|
|
/*
|
|
There are two types of functors:
|
|
|
|
o Special functors mark special terms
|
|
on the heap that should be seen as constants.
|
|
|
|
o Standard functors mark normal applications.
|
|
|
|
*/
|
|
|
|
#include "TermExt.h"
|
|
|
|
#define IsAccessFunc(func) ((func) == FunctorAccess)
|
|
|
|
|
|
inline EXTERN Term MkIntegerTerm(Int);
|
|
|
|
inline EXTERN Term MkIntegerTerm(Int n)
|
|
{
|
|
return (Term) (IntInBnd(n) ? MkIntTerm(n) : MkLongIntTerm(n));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN int IsIntegerTerm(Term);
|
|
|
|
inline EXTERN int IsIntegerTerm(Term t)
|
|
{
|
|
return (int) (IsIntTerm(t) || IsLongIntTerm(t));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Int IntegerOfTerm(Term);
|
|
|
|
inline EXTERN Int IntegerOfTerm(Term t)
|
|
{
|
|
return (Int) (IsIntTerm(t) ? IntOfTerm(t) : LongIntOfTerm(t));
|
|
}
|
|
|
|
|
|
|
|
|
|
/*************** unification routines ***********************************/
|
|
|
|
#if SBA
|
|
#include "or.sbaamiops.h"
|
|
#else
|
|
#include "amiops.h"
|
|
#endif
|
|
|
|
/*************** High level macros to access arguments ******************/
|
|
|
|
|
|
inline EXTERN Term ArgOfTerm(int i, Term t);
|
|
|
|
inline EXTERN Term ArgOfTerm(int i, Term t)
|
|
{
|
|
return (Term) (Derefa(RepAppl(t) + (i)));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Term HeadOfTerm(Term);
|
|
|
|
inline EXTERN Term HeadOfTerm(Term t)
|
|
{
|
|
return (Term) (Derefa(RepPair(t)));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Term TailOfTerm(Term);
|
|
|
|
inline EXTERN Term TailOfTerm(Term t)
|
|
{
|
|
return (Term) (Derefa(RepPair(t) + 1));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Term ArgOfTermCell(int i, Term t);
|
|
|
|
inline EXTERN Term ArgOfTermCell(int i, Term t)
|
|
{
|
|
return (Term) ((CELL)(RepAppl(t) + (i)));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Term HeadOfTermCell(Term);
|
|
|
|
inline EXTERN Term HeadOfTermCell(Term t)
|
|
{
|
|
return (Term) ((CELL)(RepPair(t)));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Term TailOfTermCell(Term);
|
|
|
|
inline EXTERN Term TailOfTermCell(Term t)
|
|
{
|
|
return (Term) ((CELL)(RepPair(t) + 1));
|
|
}
|
|
|
|
|
|
|
|
/*************** variables concerned with atoms table *******************/
|
|
#define MaxHash 1001
|
|
|
|
/************ variables concerned with save and restore *************/
|
|
extern int splfild;
|
|
|
|
#define FAIL_RESTORE 0
|
|
#define DO_EVERYTHING 1
|
|
#define DO_ONLY_CODE 2
|
|
|
|
|
|
#ifdef EMACS
|
|
|
|
/******************** using Emacs mode ********************************/
|
|
|
|
extern int emacs_mode;
|
|
|
|
#endif
|
|
|
|
|
|
/************ variable concerned with version number *****************/
|
|
extern char version_number[];
|
|
|
|
/********* common instructions codes*************************/
|
|
|
|
#define MAX_PROMPT 256
|
|
|
|
#if USE_THREADED_CODE
|
|
|
|
/************ reverse lookup of instructions *****************/
|
|
typedef struct opcode_tab_entry {
|
|
OPCODE opc;
|
|
op_numbers opnum;
|
|
} opentry;
|
|
|
|
#endif
|
|
|
|
/******************* controlling the compiler ****************************/
|
|
extern int optimizer_on;
|
|
|
|
/******************* the line for the current parse **********************/
|
|
extern int StartLine;
|
|
extern int StartCh;
|
|
extern int CurFileNo;
|
|
|
|
/********************* how to write a Prolog term ***********************/
|
|
|
|
/********* Prolog may be in several modes *******************************/
|
|
|
|
typedef enum {
|
|
BootMode = 1, /* if booting or restoring */
|
|
UserMode = 2, /* Normal mode */
|
|
CritMode = 4, /* If we are meddling with the heap */
|
|
AbortMode = 8, /* expecting to abort */
|
|
InterruptMode = 16, /* under an interrupt */
|
|
InErrorMode = 32, /* under an interrupt */
|
|
ConsoleGetcMode = 64 /* blocked reading from console */
|
|
} prolog_exec_mode;
|
|
|
|
extern prolog_exec_mode PrologMode;
|
|
extern int CritLocks;
|
|
|
|
/************** Access to yap initial arguments ***************************/
|
|
|
|
extern char **yap_args;
|
|
extern int yap_argc;
|
|
|
|
/******************* controlling debugging ****************************/
|
|
extern int creep_on;
|
|
|
|
#ifdef YAPOR
|
|
#define YAPEnterCriticalSection() \
|
|
{ \
|
|
if (worker_id != GLOBAL_LOCKS_who_locked_heap) { \
|
|
LOCK(GLOBAL_LOCKS_heap_access); \
|
|
GLOBAL_LOCKS_who_locked_heap = worker_id; \
|
|
} \
|
|
PrologMode |= CritMode; \
|
|
CritLocks++; \
|
|
}
|
|
#define YAPLeaveCriticalSection() \
|
|
{ \
|
|
CritLocks--; \
|
|
if (!CritLocks) { \
|
|
PrologMode &= ~CritMode; \
|
|
if (PrologMode & InterruptMode) { \
|
|
PrologMode &= ~InterruptMode; \
|
|
ProcessSIGINT(); \
|
|
} \
|
|
if (PrologMode & AbortMode) { \
|
|
PrologMode &= ~AbortMode; \
|
|
Error(PURE_ABORT, 0, ""); \
|
|
} \
|
|
GLOBAL_LOCKS_who_locked_heap = MAX_WORKERS; \
|
|
UNLOCK(GLOBAL_LOCKS_heap_access); \
|
|
} \
|
|
}
|
|
#else
|
|
#define YAPEnterCriticalSection() \
|
|
{ \
|
|
PrologMode |= CritMode; \
|
|
CritLocks++; \
|
|
}
|
|
#define YAPLeaveCriticalSection() \
|
|
{ \
|
|
CritLocks--; \
|
|
if (!CritLocks) { \
|
|
PrologMode &= ~CritMode; \
|
|
if (PrologMode & InterruptMode) { \
|
|
PrologMode &= ~InterruptMode; \
|
|
ProcessSIGINT(); \
|
|
} \
|
|
if (PrologMode & AbortMode) { \
|
|
PrologMode &= ~AbortMode; \
|
|
Error(PURE_ABORT, 0, ""); \
|
|
} \
|
|
} \
|
|
}
|
|
#endif /* YAPOR */
|
|
|
|
/* when we are calling the InitStaff procedures */
|
|
#define AT_BOOT 0
|
|
#define AT_RESTORE 1
|
|
|
|
/********* whether we should try to compile array references ******************/
|
|
|
|
extern int compile_arrays;
|
|
|
|
/********* mutable variables ******************/
|
|
|
|
/* I assume that the size of this structure is a multiple of the size
|
|
of CELL!!! */
|
|
typedef struct TIMED_MAVAR{
|
|
CELL value;
|
|
CELL clock;
|
|
} timed_var;
|
|
|
|
/********* while debugging you may need some info ***********************/
|
|
|
|
#if DEBUG
|
|
extern int output_msg;
|
|
#endif
|
|
|
|
#if EMACS
|
|
extern char emacs_tmp[], emacs_tmp2[];
|
|
#endif
|
|
|
|
#if HAVE_SIGNAL
|
|
extern int snoozing;
|
|
#endif
|
|
|
|
#if defined(YAPOR) || defined(TABLING)
|
|
#include "opt.structs.h"
|
|
#include "opt.macros.h"
|
|
#include "opt.proto.h"
|
|
#endif /* YAPOR || TABLING */
|
|
|
|
#if SBA
|
|
#include "or.sbaunify.h"
|
|
#endif
|
|
|