/************************************************************************* * * * YAP Prolog * * * * Yap Prolog was developed at NCCUP - Universidade do Porto * * * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * * ************************************************************************** * * * File: absmi.c * * comments: Portable abstract machine interpreter * * Last rev: $Date: 2005-11-15 00:50:49 $,$Author: vsc $ * * $Log: not supported by cvs2svn $ * Revision 1.183 2005/11/07 15:35:47 vsc * fix bugs in garbage collection of tabling. * * Revision 1.182 2005/11/05 03:02:33 vsc * get rid of unnecessary ^ in setof * Found bug in comparisons * * Revision 1.181 2005/11/04 15:39:14 vsc * absmi should PREG, never P!! * * Revision 1.180 2005/10/28 17:38:49 vsc * sveral updates * * Revision 1.179 2005/10/18 17:04:43 vsc * 5.1: * - improvements to GC * 2 generations * generic speedups * - new scheme for attvars * - hProlog like interface also supported * - SWI compatibility layer * - extra predicates * - global variables * - moved to Prolog module * - CLP(R) by Leslie De Koninck, Tom Schrijvers, Cristian Holzbaur, Bart * Demoen and Jan Wielemacker * - load_files/2 * * from 5.0.1 * * - WIN32 missing include files (untested) * - -L trouble (my thanks to Takeyuchi Shiramoto-san)! * - debugging of backtrable user-C preds would core dump. * - redeclaring a C-predicate as Prolog core dumps. * - badly protected YapInterface.h. * - break/0 was failing at exit. * - YAP_cut_fail and YAP_cut_succeed were different from manual. * - tracing through data-bases could core dump. * - cut could break on very large computations. * - first pass at BigNum issues (reported by Roberto). * - debugger could get go awol after fail port. * - weird message on wrong debugger option. * * Revision 1.178 2005/10/15 17:05:23 rslopes * enable profiling on amd64 * * Revision 1.177 2005/09/09 17:24:37 vsc * a new and hopefully much better implementation of atts. * * Revision 1.176 2005/09/08 22:06:44 rslopes * BEAM for YAP update... * * Revision 1.175 2005/08/12 17:00:00 ricroc * TABLING FIX: support for incomplete tables * * Revision 1.174 2005/08/05 14:55:02 vsc * first steps to allow mavars with tabling * fix trailing for tabling with multiple get_cons * * Revision 1.173 2005/08/04 15:45:49 ricroc * TABLING NEW: support to limit the table space size * * Revision 1.172 2005/08/02 03:09:48 vsc * fix debugger to do well nonsource predicates. * * Revision 1.171 2005/08/01 15:40:36 ricroc * TABLING NEW: better support for incomplete tabling * * Revision 1.170 2005/07/06 19:33:51 ricroc * TABLING: answers for completed calls can now be obtained by loading (new option) or executing (default) them from the trie data structure. * * Revision 1.169 2005/07/06 15:10:01 vsc * improvements to compiler: merged instructions and fixes for -> * * Revision 1.168 2005/06/04 07:27:33 ricroc * long int support for tabling * * Revision 1.167 2005/06/03 08:26:31 ricroc * float support for tabling * * Revision 1.166 2005/06/01 20:25:22 vsc * == and \= should not need a choice-point in -> * * Revision 1.165 2005/06/01 14:02:45 vsc * get_rid of try_me?, retry_me? and trust_me? instructions: they are not * significantly used nowadays. * * Revision 1.164 2005/05/26 18:07:32 vsc * fix warning * * Revision 1.163 2005/04/10 04:01:07 vsc * bug fixes, I hope! * * Revision 1.162 2005/04/07 17:48:53 ricroc * Adding tabling support for mixed strategy evaluation (batched and local scheduling) * UPDATE: compilation flags -DTABLING_BATCHED_SCHEDULING and -DTABLING_LOCAL_SCHEDULING removed. To support tabling use -DTABLING in the Makefile or --enable-tabling in configure. * NEW: yap_flag(tabling_mode,MODE) changes the tabling execution mode of all tabled predicates to MODE (batched, local or default). * NEW: tabling_mode(PRED,MODE) changes the default tabling execution mode of predicate PRED to MODE (batched or local). * * Revision 1.161 2005/03/13 06:26:09 vsc * fix excessive pruning in meta-calls * fix Term->int breakage in compiler * improve JPL (at least it does something now for amd64). * * Revision 1.160 2005/03/07 17:49:14 vsc * small fixes * * Revision 1.159 2005/03/04 20:29:55 ricroc * bug fixes for YapTab support * * Revision 1.158 2005/03/01 22:25:07 vsc * fix pruning bug * make DL_MALLOC less enthusiastic about walking through buckets. * * Revision 1.157 2005/02/08 18:04:17 vsc * library_directory may not be deterministic (usually it isn't). * * Revision 1.156 2005/01/13 05:47:25 vsc * lgamma broke arithmetic optimisation * integer_y has type y * pass original source to checker (and maybe even use option in parser) * use warning mechanism for checker messages. * * Revision 1.155 2004/12/28 22:20:34 vsc * some extra bug fixes for trail overflows: some cannot be recovered that easily, * some can. * * Revision 1.154 2004/12/05 05:01:21 vsc * try to reduce overheads when running with goal expansion enabled. * CLPBN fixes * Handle overflows when allocating big clauses properly. * * Revision 1.153 2004/11/19 22:08:35 vsc * replace SYSTEM_ERROR by out OUT_OF_WHATEVER_ERROR whenever appropriate. * * Revision 1.152 2004/11/19 17:14:12 vsc * a few fixes for 64 bit compiling. * * Revision 1.151 2004/11/04 18:22:28 vsc * don't ever use memory that has been freed (that was done by LU). * generic fixes for WIN32 libraries * * Revision 1.150 2004/10/26 20:15:36 vsc * More bug fixes for overflow handling * * Revision 1.149 2004/10/14 22:14:52 vsc * don't use a cached version of ARG1 in choice-points * * Revision 1.148 2004/09/30 21:37:40 vsc * fixes for thread support * * Revision 1.147 2004/09/30 19:51:53 vsc * fix overflow from within clause/2 * * Revision 1.146 2004/09/27 20:45:02 vsc * Mega clauses * Fixes to sizeof(expand_clauses) which was being overestimated * Fixes to profiling+indexing * Fixes to reallocation of memory after restoring * Make sure all clauses, even for C, end in _Ystop * Don't reuse space for Streams * Fix Stream_F on StreaNo+1 * * Revision 1.145 2004/09/17 20:47:35 vsc * fix some overflows recorded. * * Revision 1.144 2004/09/17 19:34:49 vsc * simplify frozen/2 * * Revision 1.143 2004/08/16 21:02:04 vsc * more fixes for ! * * Revision 1.142 2004/08/11 16:14:51 vsc * whole lot of fixes: * - memory leak in indexing * - memory management in WIN32 now supports holes * - extend Yap interface, more support for SWI-Interface * - new predicate mktime in system * - buffer console I/O in WIN32 * * Revision 1.141 2004/07/23 21:08:44 vsc * windows fixes * * Revision 1.140 2004/07/22 21:32:20 vsc * debugger fixes * initial support for JPL * bad calls to garbage collector and gc * debugger fixes * * Revision 1.139 2004/07/03 03:29:24 vsc * make it compile again on non-linux machines * * Revision 1.138 2004/06/29 19:04:40 vsc * fix multithreaded version * include new version of Ricardo's profiler * new predicat atomic_concat * allow multithreaded-debugging * small fixes * * Revision 1.137 2004/06/23 17:24:19 vsc * New comment-based message style * Fix thread support (at least don't deadlock with oneself) * small fixes for coroutining predicates * force Yap to recover space in arrays of dbrefs * use private predicates in debugger. * * Revision 1.136 2004/06/17 22:07:22 vsc * bad bug in indexing code. * * Revision 1.135 2004/06/09 03:32:02 vsc * fix bugs * * Revision 1.134 2004/06/05 03:36:59 vsc * coroutining is now a part of attvars. * some more fixes. * * Revision 1.133 2004/05/13 20:54:57 vsc * debugger fixes * make sure we always go back to current module, even during initizlization. * * Revision 1.132 2004/04/29 03:45:49 vsc * fix garbage collection in execute_tail * * Revision 1.131 2004/04/22 20:07:02 vsc * more fixes for USE_SYSTEM_MEMORY * * Revision 1.130 2004/04/22 03:24:17 vsc * trust_logical should protect the last clause, otherwise it cannot * jump there. * * Revision 1.129 2004/04/16 19:27:30 vsc * more bug fixes * * Revision 1.128 2004/04/14 19:10:22 vsc * expand_clauses: keep a list of clauses to expand * fix new trail scheme for multi-assignment variables * * Revision 1.127 2004/03/31 01:03:09 vsc * support expand group of clauses * * Revision 1.126 2004/03/19 11:35:42 vsc * trim_trail for default machine * be more aggressive about try-retry-trust chains. * - handle cases where block starts with a wait * - don't use _killed instructions, just let the thing rot by itself. * * Revision 1.125 2004/03/10 14:59:54 vsc * optimise -> for type tests * * Revision 1.124 2004/03/08 19:31:01 vsc * move to 4.5.3 * * * * *************************************************************************/ #define IN_ABSMI_C 1 #include "absmi.h" #include "heapgc.h" inline static Functor AritFunctorOfTerm(Term t) { if (IsVarTerm(t)) { return(FunctorDBRef); } if (IsApplTerm(t)) { return(FunctorOfTerm(t)); } else { if (IsIntTerm(t)) return(FunctorLongInt); else return(FunctorDBRef); } } #define RINT(v) return(MkIntegerTerm(v)) #define RFLOAT(v) return(MkFloatTerm(v)) #define RBIG(v) return(Yap_MkBigIntTerm(v)) #define RERROR() return(TermNil) #define ArithIEval(t,v) Yap_Eval(Deref(t),v) #define E_FUNC Term #define E_ARGS #define USE_E_ARGS #include "arith2.h" #ifdef COROUTINING /* Imagine we are interrupting the execution, say, because we have a spy point or because we have goals to wake up. This routine saves the current live temporary registers into a structure pointed to by register ARG1. The registers are then recovered by a nasty builtin called */ static Term push_live_regs(yamop *pco) { CELL *lab = (CELL *)(pco->u.l.l); CELL max = lab[0]; CELL curr = lab[1]; CELL *start = H; Int tot = 0; if (max) { CELL i; lab += 2; H++; for (i=0; i <= max; i++) { if (i == 8*CellSize) { curr = lab[0]; lab++; } if (curr & 1) { CELL d1; tot+=2; H[0] = MkIntTerm(i); d1 = XREGS[i]; deref_head(d1, wake_up_unk); wake_up_nonvar: /* just copy it to the heap */ H[1] = d1; H += 2; continue; { CELL *pt0; deref_body(d1, pt0, wake_up_unk, wake_up_nonvar); /* bind it, in case it is a local variable */ if (pt0 <= H) { /* variable is safe */ H[1] = (CELL)pt0; } else { d1 = Unsigned(H+1); RESET_VARIABLE(H+1); Bind_Local(pt0, d1); } } H += 2; } curr >>= 1; } start[0] = (CELL)Yap_MkFunctor(AtomTrue, tot); return(AbsAppl(start)); } else { return(TermNil); } } #endif #if LOW_PROF #include #include #include #define TestMode (GCMode | GrowHeapMode | GrowStackMode | ErrorHandlingMode | InErrorMode | AbortMode) int Yap_absmiEND(void); void prof_alrm(int signo, siginfo_t *si, ucontext_t *sc); void prof_alrm(int signo, siginfo_t *si, ucontext_t *sc) { #if __linux__ && (defined(i386) || defined(__amd64__)) void * oldpc=(void *) sc->uc_mcontext.gregs[14]; /* 14= REG_EIP */ if (Yap_PrologMode & TestMode) { fprintf(FProf,"%p %p\n", (void *) (Yap_PrologMode & TestMode), P); return; } // printf("[%p,%p] -> %p\n", Yap_ABSMI_OPCODES[_try_me], Yap_ABSMI_OPCODES[_p_execute_tail], oldpc); // if (oldpc<(void *) &Yap_absmi || oldpc> (void *) Yap_ABSMI_OPCODES[_p_execute_tail]) { if (oldpc<(void *) &Yap_absmi || oldpc> (void *) &Yap_absmiEND) { fprintf(FProf,"%p %p\n", (void *) oldpc, P); return; } fprintf(FProf,"0 %p\n", PREG); #endif return; } #endif #if defined(ANALYST) || defined(DEBUG) char *Yap_op_names[_std_top + 1] = { #define OPCODE(OP,TYPE) #OP #include "YapOpcodes.h" #undef OPCODE }; #endif Int Yap_absmi(int inp) { #if BP_FREE /* some function might be using bp for an internal variable, it is the callee's responsability to save it */ yamop* PCBACKUP = P1REG; #endif #ifdef LONG_LIVED_REGISTERS register CELL d0, d1; register CELL *pt0, *pt1; #endif /* LONG_LIVED_REGISTERS */ #if SHADOW_P register yamop *PREG = P; #endif /* SHADOW_P */ #if SHADOW_CP register yamop *CPREG = CP; #endif /* SHADOW_CP */ #if SHADOW_HB register CELL *HBREG = HB; #endif /* SHADOW_HB */ #if SHADOW_CrFl register CELL CFREG = CreepFlag; #endif /* SHADOW_CP */ #if SHADOW_Y register CELL *YREG = Yap_REGS.YENV_; #endif /* SHADOW_Y */ #if SHADOW_S register CELL *SREG = Yap_REGS.S_; #else #define SREG S #endif /* SHADOW_S */ /* The indexing register so that we will not destroy ARG1 without * reason */ #define I_R (XREGS[0]) #if USE_THREADED_CODE /************************************************************************/ /* Abstract Machine Instruction Address Table */ /* This must be declared inside the function. We use the asm directive */ /* to make it available outside this function */ /************************************************************************/ static void *OpAddress[] = { #define OPCODE(OP,TYPE) && OP #include "YapOpcodes.h" #undef OPCODE }; #endif /* USE_THREADED_CODE */ #if SHADOW_REGS /* work with a local pointer to the registers */ register REGSTORE *regp = &Yap_REGS; #endif /* SHADOW_REGS */ #if PUSH_REGS /* useful on a X86 with -fomit-frame-pointer optimisation */ /* The idea is to push REGS onto the X86 stack frame */ /* first allocate local space */ REGSTORE absmi_regs; REGSTORE *old_regs = Yap_regp; #endif /* PUSH_REGS */ #if USE_THREADED_CODE /* absmadr */ if (inp > 0) { Yap_ABSMI_OPCODES = OpAddress; #if BP_FREE P1REG = PCBACKUP; #endif return(0); } #endif /* USE_THREADED_CODE */ #if PUSH_REGS old_regs = &Yap_REGS; /* done, let us now initialise this space */ init_absmi_regs(&absmi_regs); /* the registers are all set up, let's swap */ #ifdef THREADS pthread_setspecific(Yap_yaamregs_key, (const void *)&absmi_regs); ThreadHandle[worker_id].current_yaam_regs = &absmi_regs; #else Yap_regp = &absmi_regs; #endif #undef Yap_REGS #define Yap_REGS absmi_regs #endif /* PUSH_REGS */ #if SHADOW_REGS /* use regp as a copy of REGS */ regp = &Yap_REGS; #ifdef REGS #undef REGS #endif #define REGS (*regp) #endif /* SHADOW_REGS */ setregs(); reset_absmi: #if !S_IN_MEM CACHE_A1(); #endif SP = SP0; #if USE_THREADED_CODE JMPNext(); /* go execute instruction at P */ #else /* when we start we are not in write mode */ { op_numbers opcode = _Ystop; op_numbers old_op; #ifdef DEBUG_XX unsigned long ops_done; #endif goto nextop; nextop_write: old_op = opcode; opcode = PREG->u.o.opcw; goto op_switch; nextop: old_op = opcode; opcode = PREG->opc; op_switch: #ifdef ANALYST Yap_opcount[opcode]++; Yap_2opcount[old_op][opcode]++; #ifdef DEBUG_XX ops_done++; /* if (B->cp_b > 0x103fff90) fprintf(stderr,"(%ld) doing %s, done %s, B is %p, HB is %p, H is %p\n", ops_done,Yap_op_names[opcode],Yap_op_names[old_op],B,B->cp_h,H);*/ #endif #endif /* ANALYST */ switch (opcode) { #endif /* USE_THREADED_CODE */ noheapleft: saveregs(); if (!Yap_growheap(FALSE, 0, NULL)) { Yap_Error(OUT_OF_HEAP_ERROR, TermNil, "YAP failed to grow heap: %s", Yap_ErrorMessage); setregs(); FAIL(); } setregs(); goto reset_absmi; #if !OS_HANDLES_TR_OVERFLOW notrailleft: /* if we are within indexing code, the system may have to * update a S */ #if SHADOW_S S = SREG; #endif /* YREG =was pointing to where we were going to build the * next choice-point. The stack shifter will need to know this * to move the local stack */ if (YREG > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } else { ASP = YREG+E_CB; } saveregs(); if(!Yap_growtrail (sizeof(CELL) * 16 * 1024L, FALSE)) { Yap_Error(OUT_OF_TRAIL_ERROR,TermNil,"YAP failed to reserve %ld bytes in growtrail",sizeof(CELL) * 16 * 1024L); setregs(); FAIL(); } setregs(); goto reset_absmi; #endif /* OS_HANDLES_TR_OVERFLOW */ BOp(Ystop, e); if (YREG > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } else { ASP = YREG; } Yap_StartSlots(); saveregs(); #if PUSH_REGS restore_absmi_regs(old_regs); #endif #if BP_FREE P1REG = PCBACKUP; #endif return 1; ENDBOp(); BOp(Nstop, e); if (YREG > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } else { ASP = YREG; } Yap_StartSlots(); saveregs(); #if PUSH_REGS restore_absmi_regs(old_regs); #endif #if BP_FREE P1REG = PCBACKUP; #endif return (0); ENDBOp(); /***************************************************************** * Plain try - retry - trust instructions * *****************************************************************/ /* try_me Label,NArgs */ Op(try_me, ld); /* check if enough space between trail and codespace */ check_trail(TR); /* I use YREG =to go through the choicepoint. Usually YREG =is in a * register, but sometimes (X86) not. In this case, have a * new register to point at YREG =*/ CACHE_Y(YREG); /* store arguments for procedure */ store_at_least_one_arg(PREG->u.ld.s); /* store abstract machine registers */ store_yaam_regs(PREG->u.ld.d, 0); /* On a try_me, set cut to point at previous choicepoint, * that is, to the B before the cut. */ set_cut(S_YREG, B); /* now, install the new YREG =*/ B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); PREG = NEXTOP(PREG, ld); GONext(); ENDOp(); /* retry_me Label,NArgs */ Op(retry_me, ld); CACHE_Y(B); /* After retry, cut should be pointing at the parent * choicepoint for the current B */ restore_yaam_regs(PREG->u.ld.d); restore_at_least_one_arg(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); PREG = NEXTOP(PREG, ld); GONext(); ENDOp(); /* trust_me UnusedLabel,NArgs */ Op(trust_me, ld); CACHE_Y(B); #ifdef YAPOR if (SCH_top_shared_cp(B)) { SCH_last_alternative(PREG, B_YREG); restore_at_least_one_arg(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B->cp_b); } else #endif /* YAPOR */ { pop_yaam_regs(); pop_at_least_one_arg(PREG->u.ld.s); /* After trust, cut should be pointing at the new top * choicepoint */ #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B); } PREG = NEXTOP(PREG, ld); SET_BB(B_YREG); ENDCACHE_Y(); GONext(); ENDOp(); /***************************************************************** * Profiled try - retry - trust instructions * *****************************************************************/ /* profiled_enter_me Pred */ Op(enter_profiling, p); LOCK(PREG->u.p.p->StatisticsForPred.lock); PREG->u.p.p->StatisticsForPred.NOfEntries++; UNLOCK(PREG->u.p.p->StatisticsForPred.lock); PREG = NEXTOP(PREG, p); GONext(); ENDOp(); /* profiled_enter */ Op(enter_a_profiling, e); { PredEntry *pen = RepPredProp((Prop)IntegerOfTerm(ENV[-EnvSizeInCells-2])); PREG = NEXTOP(PREG, e); LOCK(pen->StatisticsForPred.lock); pen->StatisticsForPred.NOfEntries++; UNLOCK(pen->StatisticsForPred.lock); } GONext(); ENDOp(); /* profiled_retry Label,NArgs */ Op(retry_profiled, p); LOCK(PREG->u.p.p->StatisticsForPred.lock); PREG->u.p.p->StatisticsForPred.NOfRetries++; UNLOCK(PREG->u.p.p->StatisticsForPred.lock); PREG = NEXTOP(PREG, p); GONext(); ENDOp(); /* profiled_retry_me Label,NArgs */ Op(profiled_retry_me, ld); CACHE_Y(B); /* After retry, cut should be pointing at the parent * choicepoint for the current B */ LOCK(PREG->u.ld.p->StatisticsForPred.lock); PREG->u.ld.p->StatisticsForPred.NOfRetries++; UNLOCK(PREG->u.ld.p->StatisticsForPred.lock); restore_yaam_regs(PREG->u.ld.d); restore_args(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); PREG = NEXTOP(PREG, ld); GONext(); ENDOp(); /* profiled_trust_me UnusedLabel,NArgs */ Op(profiled_trust_me, ld); CACHE_Y(B); #ifdef YAPOR if (SCH_top_shared_cp(B)) { SCH_last_alternative(PREG, B_YREG); restore_args(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B->cp_b); } else #endif /* YAPOR */ { pop_yaam_regs(); pop_args(PREG->u.ld.s); /* After trust, cut should be pointing at the new top * choicepoint */ #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B); } SET_BB(B_YREG); ENDCACHE_Y(); LOCK(PREG->u.ld.p->StatisticsForPred.lock); PREG->u.ld.p->StatisticsForPred.NOfRetries++; UNLOCK(PREG->u.ld.p->StatisticsForPred.lock); PREG = NEXTOP(PREG, ld); GONext(); ENDOp(); /***************************************************************** * Call count instructions * *****************************************************************/ /* count_enter_me Label,NArgs */ Op(count_call, p); LOCK(PREG->u.p.p->StatisticsForPred.lock); PREG->u.p.p->StatisticsForPred.NOfEntries++; UNLOCK(PREG->u.p.p->StatisticsForPred.lock); ReductionsCounter--; if (ReductionsCounter == 0 && ReductionsCounterOn) { saveregs(); Yap_Error(CALL_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PredEntriesCounter--; if (PredEntriesCounter == 0 && PredEntriesCounterOn) { saveregs(); Yap_Error(PRED_ENTRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PREG = NEXTOP(PREG, p); GONext(); ENDOp(); /* count_enter_me Label,NArgs */ Op(count_a_call, e); { PredEntry *pen = RepPredProp((Prop)IntegerOfTerm(ENV[-EnvSizeInCells-2])); PREG = NEXTOP(PREG, e); LOCK(pen->StatisticsForPred.lock); pen->StatisticsForPred.NOfEntries++; UNLOCK(pen->StatisticsForPred.lock); ReductionsCounter--; if (ReductionsCounter == 0 && ReductionsCounterOn) { saveregs(); Yap_Error(CALL_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PredEntriesCounter--; if (PredEntriesCounter == 0 && PredEntriesCounterOn) { saveregs(); Yap_Error(PRED_ENTRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } } GONext(); ENDOp(); /* count_retry Label,NArgs */ Op(count_retry, p); LOCK(PREG->u.p.p->StatisticsForPred.lock); PREG->u.p.p->StatisticsForPred.NOfRetries++; UNLOCK(PREG->u.p.p->StatisticsForPred.lock); RetriesCounter--; if (RetriesCounter == 0 && RetriesCounterOn) { saveregs(); Yap_Error(RETRY_COUNTER_UNDERFLOW,TermNil,""); JMPNext(); setregs(); } PredEntriesCounter--; if (PredEntriesCounter == 0 && PredEntriesCounterOn) { saveregs(); Yap_Error(PRED_ENTRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PREG = NEXTOP(PREG, p); GONext(); ENDOp(); /* count_retry_me Label,NArgs */ Op(count_retry_me, ld); CACHE_Y(B); /* After retry, cut should be pointing at the parent * choicepoint for the current B */ LOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock); ((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.NOfRetries++; UNLOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock); RetriesCounter--; if (RetriesCounter == 0 && RetriesCounterOn) { saveregs(); Yap_Error(RETRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PredEntriesCounter--; if (PredEntriesCounter == 0 && PredEntriesCounterOn) { saveregs(); Yap_Error(PRED_ENTRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } restore_yaam_regs(PREG->u.ld.d); restore_args(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); PREG = NEXTOP(PREG, ld); GONext(); ENDOp(); /* count_trust_me UnusedLabel,NArgs */ Op(count_trust_me, ld); CACHE_Y(B); #ifdef YAPOR if (SCH_top_shared_cp(B)) { SCH_last_alternative(PREG, B_YREG); restore_args(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B->cp_b); } else #endif /* YAPOR */ { pop_yaam_regs(); pop_args(PREG->u.ld.s); /* After trust, cut should be pointing at the new top * choicepoint */ #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B); } SET_BB(B_YREG); ENDCACHE_Y(); RetriesCounter--; if (RetriesCounter == 0) { saveregs(); Yap_Error(RETRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PredEntriesCounter--; if (PredEntriesCounter == 0) { saveregs(); Yap_Error(PRED_ENTRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } LOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock); ((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.NOfRetries++; UNLOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock); PREG = NEXTOP(PREG, ld); GONext(); ENDOp(); /***************************************************************** * enter a logical semantics dynamic predicate * *****************************************************************/ /* only meaningful with THREADS on! */ /* lock logical updates predicate. */ Op(lock_lu, p); #if defined(YAPOR) || defined(THREADS) PP = PREG->u.p.p; READ_LOCK(PP->PRWLock); if (PP->cs.p_code.TrueCodeOfPred != PREG) { PREG = PP->cs.p_code.TrueCodeOfPred; READ_UNLOCK(PP->PRWLock); PP = NULL; GONext(); } #endif PREG = NEXTOP(PREG, p); GONext(); ENDOp(); /* only meaningful with THREADS on! */ /* lock logical updates predicate. */ Op(unlock_lu, e); PREG = NEXTOP(PREG, e); #if defined(YAPOR) || defined(THREADS) if (PP) { READ_UNLOCK(PP->PRWLock); PP = NULL; } #endif GONext(); ENDOp(); /* enter logical pred */ BOp(stale_lu_index, Ill); { yamop *ipc; #if defined(YAPOR) || defined(THREADS) PredEntry *pe = PREG->u.Ill.p; #endif /* update ASP before calling IPred */ ASP = YREG+E_CB; if (ASP > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } saveregs(); #if defined(YAPOR) || defined(THREADS) LOCK(pe->PELock); if (PP) { /* PP would be NULL for local preds */ READ_UNLOCK(PP->PRWLock); PP = NULL; } if (!same_lu_block(PREG_ADDR, PREG)) { PREG = *PREG_ADDR; UNLOCK(pe->PELock); JMPNext(); } #endif ipc = Yap_CleanUpIndex(PREG->u.Ill.I); setregs(); /* restart index */ PREG = ipc; UNLOCK(pe->PELock); if (PREG == NULL) FAIL(); CACHE_A1(); JMPNext(); } ENDBOp(); /* enter logical pred */ BOp(enter_lu_pred, Ill); /* mark the indexing code */ { LogUpdIndex *cl = PREG->u.Ill.I; PREG = PREG->u.Ill.l1; LOCK(cl->ClLock); /* indicate the indexing code is being used */ #if defined(YAPOR) || defined(THREADS) /* just store a reference */ INC_CLREF_COUNT(cl); TRAIL_CLREF(cl); #else if (!(cl->ClFlags & InUseMask)) { cl->ClFlags |= InUseMask; TRAIL_CLREF(cl); } #endif UNLOCK(cl->ClLock); #if defined(YAPOR) || defined(THREADS) if (PP) { /* PP would be NULL for local preds */ READ_UNLOCK(PP->PRWLock); PP = NULL; } #endif } GONext(); ENDBOp(); /* trust a logical pred, that is, release the code */ BOp(trust_logical_pred, l); /* unmark the indexing code */ /* mark the indexing code */ { LogUpdIndex *cl = (LogUpdIndex *)PREG->u.l.l; PREG = NEXTOP(PREG, l); /* check if we are the ones using this code */ #if defined(YAPOR) || defined(THREADS) LOCK(cl->ClLock); DEC_CLREF_COUNT(cl); /* clear the entry from the trail */ TR = --(B->cp_tr); /* actually get rid of the code */ if (cl->ClRefCount == 0 && cl->ClFlags & ErasedMask) { yamop *next = PREG->u.ld.d; UNLOCK(cl->ClLock); if (next != FAILCODE) { LogUpdClause *lcl = ClauseCodeToLogUpdClause(next); /* I am the last one using this clause, hence I don't need a lock to dispose of it */ LOCK(lcl->ClLock); if (lcl->ClRefCount == 1) { /* make sure the clause isn't destroyed */ /* always add an extra reference */ INC_CLREF_COUNT(lcl); TRAIL_CLREF(lcl); } UNLOCK(lcl->ClLock); } PREG = Yap_ErLogUpdIndex(cl, PREG); } else { UNLOCK(cl->ClLock); } #else if (TrailTerm(B->cp_tr-1) == CLREF_TO_TRENTRY(cl) && B->cp_tr != B->cp_b->cp_tr) { cl->ClFlags &= ~InUseMask; TR = --B->cp_tr; /* next, recover space for the indexing code if it was erased */ if (cl->ClFlags & ErasedMask) { yamop *next = PREG->u.ld.d; if (next != FAILCODE) { LogUpdClause *lcl = ClauseCodeToLogUpdClause(next); /* make sure we don't erase the clause we are jumping too */ if (lcl->ClRefCount == 1 && !(lcl->ClFlags & InUseMask)) { lcl->ClFlags |= InUseMask; TRAIL_CLREF(lcl); } } PREG = Yap_ErLogUpdIndex(cl, PREG); } } #endif } GONext(); ENDBOp(); /* enter logical pred */ BOp(alloc_for_logical_pred, EC); /* say that an environment is using this clause */ /* we have our own copy for the clause */ #if defined(YAPOR) || defined(THREADS) { LogUpdClause *cl = (LogUpdClause *)PREG->u.EC.ClBase; LOCK(cl->ClLock); /* always add an extra reference */ INC_CLREF_COUNT(cl); TRAIL_CLREF(cl); UNLOCK(cl->ClLock); if (PP) { READ_UNLOCK(PP->PRWLock); PP = NULL; } } #else { LogUpdClause *cl = (LogUpdClause *)PREG->u.EC.ClBase; if (!(cl->ClFlags & InUseMask)) { /* Clause *cl = (Clause *)PREG->u.EC.ClBase; PREG->u.EC.ClTrail = TR-(tr_fr_ptr)Yap_TrailBase; PREG->u.EC.ClENV = LCL0-YENV;*/ cl->ClFlags |= InUseMask; TRAIL_CLREF(cl); } } #endif PREG = NEXTOP(PREG, EC); GONext(); ENDBOp(); /* copy database term */ BOp(copy_idb_term, e); { LogUpdClause *cl = ClauseCodeToLogUpdClause(PREG); Term t; ASP = YREG; saveregs(); while ((t = Yap_FetchTermFromDB(cl->ClSource)) == 0L) { if (Yap_Error_TYPE == OUT_OF_ATTVARS_ERROR) { Yap_Error_TYPE = YAP_NO_ERROR; if (!Yap_growglobal(NULL)) { Yap_Error(OUT_OF_ATTVARS_ERROR, TermNil, Yap_ErrorMessage); FAIL(); } } else { Yap_Error_TYPE = YAP_NO_ERROR; if (!Yap_gc(3, ENV, CP)) { Yap_Error(OUT_OF_STACK_ERROR, TermNil, Yap_ErrorMessage); FAIL(); } } } if (!Yap_IUnify(ARG2, t)) { setregs(); FAIL(); } if (!Yap_IUnify(ARG3, MkDBRefTerm((DBRef)cl))) { setregs(); FAIL(); } setregs(); #if defined(YAPOR) || defined(THREADS) LOCK(cl->ClLock); /* always add an extra reference */ INC_CLREF_COUNT(cl); TRAIL_CLREF(cl); UNLOCK(cl->ClLock); if (PP) { READ_UNLOCK(PP->PRWLock); PP = NULL; } #else if (!(cl->ClFlags & InUseMask)) { /* Clause *cl = (Clause *)PREG->u.EC.ClBase; PREG->u.EC.ClTrail = TR-(tr_fr_ptr)Yap_TrailBase; PREG->u.EC.ClENV = LCL0-YENV;*/ cl->ClFlags |= InUseMask; TRAIL_CLREF(cl); } #endif } PREG = CPREG; YREG = ENV; #ifdef DEPTH_LIMIT DEPTH = YREG[E_DEPTH]; #endif GONext(); ENDBOp(); /* unify with database term */ BOp(unify_idb_term, e); { LogUpdClause *cl = ClauseCodeToLogUpdClause(PREG); saveregs(); if (!Yap_IUnify(ARG2, cl->ClSource->Entry)) { setregs(); FAIL(); } if (!Yap_IUnify(ARG3, MkDBRefTerm((DBRef)cl))) { setregs(); FAIL(); } setregs(); /* say that an environment is using this clause */ /* we have our own copy for the clause */ #if defined(YAPOR) || defined(THREADS) LOCK(cl->ClLock); /* always add an extra reference */ INC_CLREF_COUNT(cl); TRAIL_CLREF(cl); UNLOCK(cl->ClLock); if (PP) { READ_UNLOCK(PP->PRWLock); PP = NULL; } #else if (!(cl->ClFlags & InUseMask)) { /* Clause *cl = (Clause *)PREG->u.EC.ClBase; PREG->u.EC.ClTrail = TR-(tr_fr_ptr)Yap_TrailBase; PREG->u.EC.ClENV = LCL0-YENV;*/ cl->ClFlags |= InUseMask; TRAIL_CLREF(cl); } #endif } PREG = CPREG; YREG = ENV; #ifdef DEPTH_LIMIT DEPTH = YREG[E_DEPTH]; #endif GONext(); ENDBOp(); /***************************************************************** * try and retry of dynamic predicates * *****************************************************************/ /* spy_or_trymark */ BOp(spy_or_trymark, ld); READ_LOCK(((PredEntry *)(PREG->u.ld.p))->PRWLock); PREG = (yamop *)(&(((PredEntry *)(PREG->u.ld.p))->OpcodeOfPred)); READ_UNLOCK(((PredEntry *)(PREG->u.ld.p))->PRWLock); goto dospy; ENDBOp(); /* try_and_mark Label,NArgs */ BOp(try_and_mark, ld); check_trail(TR); #if defined(YAPOR) || defined(THREADS) #ifdef YAPOR /* The flags I check here should never change during execution */ CUT_wait_leftmost(); #endif /* YAPOR */ READ_LOCK(((PredEntry *)(PREG->u.ld.p))->PRWLock); if (PREG->u.ld.p->CodeOfPred != PREG) { /* oops, someone changed the procedure under our feet, fortunately this is no big deal because we haven't done anything yet */ READ_UNLOCK(((PredEntry *)(PREG->u.ld.p))->PRWLock); PREG = PREG->u.ld.p->CodeOfPred; JMPNext(); } #endif CACHE_Y(YREG); PREG = PREG->u.ld.d; /* I've got a read lock on the DB, so I don't need to care... niaaahh.... niahhhh... */ LOCK(DynamicLock(PREG)); /* one can now mess around with the predicate */ READ_UNLOCK(((PredEntry *)(PREG->u.ld.p))->PRWLock); BEGD(d1); d1 = PREG->u.ld.s; store_args(d1); store_yaam_regs(PREG, 0); ENDD(d1); set_cut(S_YREG, B); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); #if defined(YAPOR) || defined(THREADS) INC_CLREF_COUNT(ClauseCodeToDynamicClause(PREG)); UNLOCK(DynamicLock(PREG)); TRAIL_CLREF(ClauseCodeToDynamicClause(PREG)); #else if (FlagOff(InUseMask, DynamicFlags(PREG))) { SetFlag(InUseMask, DynamicFlags(PREG)); TRAIL_CLREF(ClauseCodeToDynamicClause(PREG)); } #endif PREG = NEXTOP(PREG,ld); JMPNext(); ENDBOp(); BOp(count_retry_and_mark, ld); RetriesCounter--; if (RetriesCounter == 0) { saveregs(); Yap_Error(RETRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } PredEntriesCounter--; if (PredEntriesCounter == 0) { saveregs(); Yap_Error(PRED_ENTRY_COUNTER_UNDERFLOW,TermNil,""); setregs(); JMPNext(); } /* enter a retry dynamic */ ENDBOp(); BOp(profiled_retry_and_mark, ld); LOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock); ((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.NOfRetries++; UNLOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock); /* enter a retry dynamic */ ENDBOp(); /* retry_and_mark Label,NArgs */ BOp(retry_and_mark, ld); #ifdef YAPOR CUT_wait_leftmost(); #endif /* YAPOR */ /* need to make the DB stable until I get the new clause */ READ_LOCK(PREG->u.ld.p->PRWLock); CACHE_Y(B); PREG = PREG->u.ld.d; LOCK(DynamicLock(PREG)); READ_UNLOCK(PREG->u.ld.p->PRWLock); restore_yaam_regs(PREG); restore_args(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); #if defined(YAPOR) || defined(THREADS) INC_CLREF_COUNT(ClauseCodeToDynamicClause(PREG)); TRAIL_CLREF(ClauseCodeToDynamicClause(PREG)); UNLOCK(DynamicLock(PREG)); #else if (FlagOff(InUseMask, DynamicFlags(PREG))) { SetFlag(InUseMask, DynamicFlags(PREG)); TRAIL_CLREF(ClauseCodeToDynamicClause(PREG)); } #endif PREG = NEXTOP(PREG,ld); JMPNext(); ENDBOp(); /***************************************************************** * Failure * *****************************************************************/ /* trust_fail */ BOp(trust_fail, e); #ifdef YAPOR { choiceptr cut_pt; cut_pt = B->cp_b; CUT_prune_to(cut_pt); B = cut_pt; } #else B = B->cp_b; #endif /* YAPOR */ goto fail; ENDBOp(); #ifdef YAPOR shared_fail: B = LOCAL_top_cp; SET_BB(PROTECT_FROZEN_B(B)); goto fail; #endif /* YAPOR */ /* fail */ PBOp(op_fail, e); fail: { register tr_fr_ptr pt0 = TR; #if defined(YAPOR) || defined(THREADS) if (PP) { READ_UNLOCK(PP->PRWLock); PP = NULL; } #endif PREG = B->cp_ap; CACHE_TR(B->cp_tr); PREFETCH_OP(PREG); failloop: if (pt0 == S_TR) { SP = SP0; #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { int go_on = TRUE; yamop *ipc = PREG; while (go_on) { op_numbers opnum = Yap_op_from_opcode(ipc->opc); go_on = FALSE; switch (opnum) { #ifdef TABLING case _table_load_answer: low_level_trace(retry_table_loader, LOAD_CP(B)->cp_pred_entry, NULL); break; case _table_try_answer: case _table_retry_me: case _table_trust_me: case _table_retry: case _table_trust: case _table_completion: low_level_trace(retry_table_generator, GEN_CP(B)->cp_pred_entry, (CELL *)(GEN_CP(B) + 1)); break; case _table_answer_resolution: low_level_trace(retry_table_consumer, CONS_CP(B)->cp_pred_entry, NULL); break; case _trie_retry_null: case _trie_trust_null: case _trie_retry_var: case _trie_trust_var: case _trie_retry_val: case _trie_trust_val: case _trie_retry_atom: case _trie_trust_atom: case _trie_retry_list: case _trie_trust_list: case _trie_retry_struct: case _trie_trust_struct: case _trie_retry_extension: case _trie_trust_extension: case _trie_retry_float: case _trie_trust_float: case _trie_retry_long: case _trie_trust_long: low_level_trace(retry_table_loader, UndefCode, NULL); break; #endif /* TABLING */ case _or_else: case _or_last: low_level_trace(retry_or, (PredEntry *)ipc, &(B->cp_a1)); break; case _retry2: case _retry3: case _retry4: case _trust_logical_pred: ipc = NEXTOP(ipc,l); go_on = TRUE; break; case _retry_c: case _retry_userc: low_level_trace(retry_pred, ipc->u.lds.p, B->cp_args); break; case _retry_profiled: case _count_retry: ipc = NEXTOP(ipc,p); go_on = TRUE; break; case _retry_me: case _trust_me: case _count_retry_me: case _count_trust_me: case _profiled_retry_me: case _profiled_trust_me: case _retry_and_mark: case _profiled_retry_and_mark: case _retry: case _trust: low_level_trace(retry_pred, ipc->u.ld.p, B->cp_args); break; case _Nstop: case _Ystop: low_level_trace(retry_pred, NULL, B->cp_args); break; default: break; } } } #endif /* LOW_LEVEL_TRACER */ #ifdef FROZEN_STACKS #ifdef SBA if (pt0 < TR_FZ || pt0 > (tr_fr_ptr)Yap_TrailTop) #else if (pt0 < TR_FZ) #endif /* SBA */ { TR = TR_FZ; TRAIL_LINK(pt0); } else #endif /* FROZEN_STACKS */ RESTORE_TR(); GONext(); } BEGD(d1); d1 = TrailTerm(pt0-1); pt0--; if (IsVarTerm(d1)) { #if defined(SBA) && defined(YAPOR) /* clean up the trail when we backtrack */ if (Unsigned((Int)(d1)-(Int)(H_FZ)) > Unsigned((Int)(B_FZ)-(Int)(H_FZ))) { RESET_VARIABLE(STACK_TO_SBA(d1)); } else #endif /* normal variable */ RESET_VARIABLE(d1); goto failloop; } /* pointer to code space */ /* or updatable variable */ #if defined(TERM_EXTENSIONS) || defined(FROZEN_STACKS) || defined(MULTI_ASSIGNMENT_VARIABLES) if (IsPairTerm(d1)) #endif /* TERM_EXTENSIONS || FROZEN_STACKS || MULTI_ASSIGNMENT_VARIABLES */ { register CELL flags; CELL *pt1 = RepPair(d1); #ifdef LIMIT_TABLING if ((ADDR) pt1 == Yap_TrailBase) { sg_fr_ptr sg_fr = (sg_fr_ptr) TrailVal(pt0); TrailTerm(pt0) = AbsPair((CELL *)(pt0 - 1)); SgFr_state(sg_fr)--; /* complete_in_use --> complete : compiled_in_use --> compiled */ insert_into_global_sg_fr_list(sg_fr); goto failloop; } #endif /* LIMIT_TABLING */ #ifdef FROZEN_STACKS /* TRAIL */ /* avoid frozen segments */ #ifdef SBA if ((ADDR) pt1 >= HeapTop) #else if ((ADDR) pt1 >= Yap_TrailBase) #endif /* SBA */ { pt0 = (tr_fr_ptr) pt1; goto failloop; } #endif /* FROZEN_STACKS */ flags = *pt1; #if defined(YAPOR) || defined(THREADS) if (FlagOn(DBClMask, flags)) { DBRef dbr = DBStructFlagsToDBStruct(pt1); int erase; LOCK(dbr->lock); DEC_DBREF_COUNT(dbr); erase = (dbr->Flags & ErasedMask) && (dbr->ref_count == 0); UNLOCK(dbr->lock); if (erase) { saveregs(); Yap_ErDBE(dbr); setregs(); } } else { if (flags & LogUpdMask) { if (flags & IndexMask) { LogUpdIndex *cl = ClauseFlagsToLogUpdIndex(pt1); int erase; LOCK(cl->ClLock); DEC_CLREF_COUNT(cl); erase = (cl->ClFlags & ErasedMask) && !(cl->ClRefCount); UNLOCK(cl->ClLock); if (erase) { saveregs(); /* at this point, we are the only ones accessing the clause, hence we don't need to have a lock it */ Yap_ErLogUpdIndex(cl, NULL); setregs(); } } else { LogUpdClause *cl = ClauseFlagsToLogUpdClause(pt1); int erase; LOCK(cl->ClLock); DEC_CLREF_COUNT(cl); erase = (cl->ClFlags & ErasedMask) && !(cl->ClRefCount); UNLOCK(cl->ClLock); if (erase) { saveregs(); /* at this point, we are the only ones accessing the clause, hence we don't need to have a lock it */ Yap_ErLogUpdCl(cl); setregs(); } } } else { DynamicClause *cl = ClauseFlagsToDynamicClause(pt1); int erase; LOCK(cl->ClLock); DEC_CLREF_COUNT(cl); erase = (cl->ClFlags & ErasedMask) && !(cl->ClRefCount); UNLOCK(cl->ClLock); if (erase) { saveregs(); /* at this point, we are the only ones accessing the clause, hence we don't need to have a lock it */ Yap_ErCl(cl); setregs(); } } } #else ResetFlag(InUseMask, flags); *pt1 = flags; if (FlagOn(ErasedMask, flags)) { if (FlagOn(DBClMask, flags)) { saveregs(); Yap_ErDBE(DBStructFlagsToDBStruct(pt1)); setregs(); } else { saveregs(); if (flags & LogUpdMask) { if (flags & IndexMask) { Yap_ErLogUpdIndex(ClauseFlagsToLogUpdIndex(pt1), NULL); } else { Yap_ErLogUpdCl(ClauseFlagsToLogUpdClause(pt1)); } } else { Yap_ErCl(ClauseFlagsToDynamicClause(pt1)); } setregs(); } } #endif goto failloop; } #ifdef MULTI_ASSIGNMENT_VARIABLES else /* if (IsApplTerm(d1)) */ { CELL *pt = RepAppl(d1); /* AbsAppl means */ /* multi-assignment variable */ /* so the next cell is the old value */ #ifdef FROZEN_STACKS pt[0] = TrailVal(pt0-1); pt0 -= 1; #else pt[0] = TrailTerm(pt0-1); pt0 -= 2; #endif /* FROZEN_STACKS */ goto failloop; } #endif ENDD(d1); ENDCACHE_TR(); } ENDPBOp(); /************************************************************************\ * Cut & Commit Instructions * \************************************************************************/ /* cut */ Op(cut, e); PREG = NEXTOP(PREG, e); BEGD(d0); /* assume cut is always in stack */ d0 = YREG[E_CB]; #ifdef YAPOR CUT_prune_to((choiceptr) d0); #endif /* YAPOR */ if (SHOULD_CUT_UP_TO(B,(choiceptr) d0)) { /* cut ! */ while (B->cp_b < (choiceptr)d0) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ trim_trail: HBREG = PROTECT_FROZEN_H(B->cp_b); #ifdef FROZEN_STACKS { tr_fr_ptr pt0, pt1, pbase; pbase = B->cp_tr; pt0 = pt1 = TR - 1; while (pt1 >= pbase) { BEGD(d1); d1 = TrailTerm(pt1); if (IsVarTerm(d1)) { if (d1 < (CELL)HBREG || d1 > Unsigned(B->cp_b)) { TrailTerm(pt0) = d1; TrailVal(pt0) = TrailVal(pt1); pt0--; } pt1--; } else if (IsPairTerm(d1)) { CELL *pt = RepPair(d1); #ifdef LIMIT_TABLING if ((ADDR) pt == Yap_TrailBase) { sg_fr_ptr sg_fr = (sg_fr_ptr) TrailVal(pt1); SgFr_state(sg_fr)--; /* complete_in_use --> complete : compiled_in_use --> compiled */ insert_into_global_sg_fr_list(sg_fr); } else #endif /* LIMIT_TABLING */ if ((ADDR) pt >= Yap_TrailBase) { /* skip, this is a problem because we lose information, namely active references */ pt1 = (tr_fr_ptr)pt; } else if ((*pt & (LogUpdMask|IndexMask)) == (LogUpdMask|IndexMask)) { LogUpdIndex *cl = ClauseFlagsToLogUpdIndex(pt); int erase; LOCK(cl->ClLock); DEC_CLREF_COUNT(cl); cl->ClFlags &= ~InUseMask; erase = (cl->ClFlags & ErasedMask) && !(cl->ClRefCount); UNLOCK(cl->ClLock); if (erase) { /* at this point, we are the only ones accessing the clause, hence we don't need to have a lock it */ saveregs(); Yap_ErLogUpdIndex(cl, NULL); setregs(); } } else { TrailTerm(pt0) = d1; TrailVal(pt0) = TrailVal(pt1); pt0--; } pt1--; } else if (IsApplTerm(d1)) { if (IN_BETWEEN(HBREG,RepAppl(d1),B->cp_b)) { /* deterministic binding to multi-assignment variable */ pt1 -= 2; } else { TrailVal(pt0) = TrailVal(pt1); TrailTerm(pt0) = d1; TrailVal(pt0-1) = TrailVal(pt1-1); TrailTerm(pt0-1) = TrailTerm(pt1-1); pt0 -= 2; pt1 -= 2; } } else { TrailTerm(pt0) = d1; TrailVal(pt0) = TrailVal(pt1); pt0--; pt1--; } ENDD(d1); } if (pt0 != pt1) { int size; pt0++; size = TR - pt0; memcpy(pbase, pt0, size * sizeof(struct trail_frame)); TR = pbase + size; } } #else { tr_fr_ptr pt1, pt0; pt1 = pt0 = B->cp_tr; while (pt1 != TR) { BEGD(d1); d1 = TrailTerm(pt1); if (IsVarTerm(d1)) { if (d1 < (CELL)HBREG || d1 > Unsigned(B->cp_b)) { #ifdef FROZEN_STACKS TrailVal(pt0) = TrailVal(pt1); #endif /* FROZEN_STACKS */ TrailTerm(pt0) = d1; pt0++; } pt1++; } else if (IsApplTerm(d1)) { if (IN_BETWEEN(HBREG,RepAppl(d1),B->cp_b)) { #ifdef FROZEN_STACKS pt1 += 2; #else pt1 += 3; #endif } else { #ifdef FROZEN_STACKS TrailVal(pt0) = TrailVal(pt1); TrailTerm(pt0) = d1; TrailVal(pt0+1) = TrailVal(pt1+1); TrailTerm(pt0+1) = TrailTerm(pt1+1); pt0 += 2; pt1 += 2; #else TrailTerm(pt0+1) = TrailTerm(pt1+1); TrailTerm(pt0) = TrailTerm(pt0+2) = d1; pt0 += 3; pt1 += 3; #endif /* FROZEN_STACKS */ } } else if (IsPairTerm(d1)) { CELL *pt = RepPair(d1); if ((*pt & (LogUpdMask|IndexMask)) == (LogUpdMask|IndexMask)) { LogUpdIndex *cl = ClauseFlagsToLogUpdIndex(pt); int erase; LOCK(cl->ClLock); DEC_CLREF_COUNT(cl); cl->ClFlags &= ~InUseMask; erase = (cl->ClFlags & ErasedMask) && !(cl->ClRefCount); UNLOCK(cl->ClLock); if (erase) { /* at this point, we are the only ones accessing the clause, hence we don't need to have a lock it */ saveregs(); Yap_ErLogUpdIndex(cl, NULL); setregs(); } } else { TrailTerm(pt0) = d1; pt0++; } pt1++; } else { TrailTerm(pt0) = d1; pt0++; pt1++; } ENDD(d1); } TR = pt0; } #endif /* FROZEN_STACKS */ B = B->cp_b; SET_BB(PROTECT_FROZEN_B(B)); } ENDD(d0); GONext(); ENDOp(); /* cut_t */ /* cut_t does the same as cut */ Op(cut_t, e); PREG = NEXTOP(PREG, e); BEGD(d0); /* assume cut is always in stack */ d0 = YREG[E_CB]; #ifdef YAPOR CUT_prune_to((choiceptr) d0); #endif /* YAPOR */ if (SHOULD_CUT_UP_TO(B,(choiceptr) d0)) { /* cut ! */ while (B->cp_b < (choiceptr)d0) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B->cp_b); #ifdef SBA if (ENV > (CELL *) top_b || ENV < H) YREG = (CELL *) top_b; #else if (ENV > (CELL *) top_b) YREG = (CELL *) top_b; #endif /* SBA */ else YREG = (CELL *)((CELL)ENV + ENV_Size(CPREG)); } #else if (ENV > (CELL *)B->cp_b) { YREG = (CELL *)B->cp_b; } else { YREG = (CELL *) ((CELL) ENV + ENV_Size(CPREG)); } #endif /* FROZEN_STACKS */ YREG[E_CB] = d0; goto trim_trail; } ENDD(d0); GONext(); ENDOp(); /* cut_e */ Op(cut_e, e); PREG = NEXTOP(PREG, e); BEGD(d0); /* we assume dealloc leaves in S the previous env */ d0 = SREG[E_CB]; #ifdef YAPOR CUT_prune_to((choiceptr) d0); #endif /* YAPOR */ if (SHOULD_CUT_UP_TO(B,(choiceptr)d0)) { /* cut ! */ while (B->cp_b < (choiceptr)d0) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ goto trim_trail; } ENDD(d0); GONext(); ENDOp(); /* save_b_x Xi */ Op(save_b_x, x); BEGD(d0); d0 = PREG->u.x.x; #if defined(SBA) && defined(FROZEN_STACKS) XREG(d0) = MkIntegerTerm((Int)B); #else XREG(d0) = MkIntegerTerm(LCL0-(CELL *) (B)); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, x); ENDD(d0); GONext(); ENDOp(); /* save_b_y Yi */ Op(save_b_y, y); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.y.y,MkIntegerTerm((Int)B)); #else YREG[PREG->u.y.y] = MkIntegerTerm(LCL0-(CELL *) (B)); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, y); GONext(); ENDOp(); /* commit_b_x Xi */ Op(commit_b_x, x); BEGD(d0); d0 = XREG(PREG->u.x.x); #ifdef COROUTINING CACHE_Y_AS_ENV(YREG); check_stack(NoStackCommitX, H); ENDCACHE_Y_AS_ENV(); do_commit_b_x: #endif /* skip a void call and a label */ PREG = NEXTOP(NEXTOP(NEXTOP(PREG, x),sla),l); { choiceptr pt0; #if defined(SBA) && defined(FROZEN_STACKS) pt0 = (choiceptr)IntegerOfTerm(d0); #else pt0 = (choiceptr)(LCL0-IntegerOfTerm(d0)); #endif /* SBA && FROZEN_STACKS */ #ifdef YAPOR CUT_prune_to(pt0); #endif /* YAPOR */ if (SHOULD_CUT_UP_TO(B,pt0)) { while (B->cp_b < pt0) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ goto trim_trail; } } ENDD(d0); GONext(); ENDOp(); /* commit_b_y Yi */ Op(commit_b_y, y); BEGD(d0); d0 = YREG[PREG->u.y.y]; #ifdef COROUTINING CACHE_Y_AS_ENV(YREG); check_stack(NoStackCommitY, H); ENDCACHE_Y_AS_ENV(); do_commit_b_y: #endif PREG = NEXTOP(NEXTOP(NEXTOP(PREG, y),sla),l); { choiceptr pt0; #if defined(SBA) && defined(FROZEN_STACKS) pt0 = (choiceptr)IntegerOfTerm(d0); #else pt0 = (choiceptr)(LCL0-IntegerOfTerm(d0)); #endif /* SBA && FROZEN_STACKS */ #ifdef YAPOR CUT_prune_to(pt0); #endif /* YAPOR */ if (SHOULD_CUT_UP_TO(B,pt0)) { while (B->cp_b < pt0) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ goto trim_trail; } } ENDD(d0); GONext(); ENDOp(); /************************************************************************* * Call / Proceed instructions * *************************************************************************/ /* Macros for stack trimming */ /* execute Label */ BOp(execute, p); { PredEntry *pt0; CACHE_Y_AS_ENV(YREG); pt0 = PREG->u.p.p; #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { low_level_trace(enter_pred,pt0,XREGS+1); } #endif /* LOW_LEVEL_TRACE */ CACHE_A1(); ALWAYS_LOOKAHEAD(pt0->OpcodeOfPred); BEGD(d0); d0 = (CELL)B; #ifndef NO_CHECKING check_stack(NoStackExecute, H); #endif PREG = pt0->CodeOfPred; ENV_YREG[E_CB] = d0; ENDD(d0); #ifdef DEPTH_LIMIT if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is prolog */ if (pt0->ModuleOfPred) { if (DEPTH == MkIntTerm(0)) FAIL(); else DEPTH = RESET_DEPTH(); } } else if (pt0->ModuleOfPred) DEPTH -= MkIntConstant(2); #endif /* DEPTH_LIMIT */ /* this is the equivalent to setting up the stack */ ALWAYS_GONext(); ALWAYS_END_PREFETCH(); ENDCACHE_Y_AS_ENV(); } ENDBOp(); NoStackExecute: SREG = (CELL *) PREG->u.p.p; if (ActiveSignals & YAP_CDOVF_SIGNAL) { ASP = YREG+E_CB; if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); goto noheapleft; } if (ActiveSignals) goto creep; else goto NoStackExec; /* dexecute Label */ /* joint deallocate and execute */ BOp(dexecute, p); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,PREG->u.p.p,XREGS+1); #endif /* LOW_LEVEL_TRACER */ CACHE_Y_AS_ENV(YREG); { PredEntry *pt0; CACHE_A1(); pt0 = PREG->u.p.p; #ifndef NO_CHECKING /* check stacks */ check_stack(NoStackDExecute, H); #endif #ifdef DEPTH_LIMIT if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is primitives */ if (pt0->ModuleOfPred) { if (DEPTH == MkIntTerm(0)) FAIL(); else DEPTH = RESET_DEPTH(); } } else if (pt0->ModuleOfPred) DEPTH -= MkIntConstant(2); #endif /* DEPTH_LIMIT */ PREG = pt0->CodeOfPred; ALWAYS_LOOKAHEAD(pt0->OpcodeOfPred); /* do deallocate */ CPREG = (yamop *) ENV_YREG[E_CP]; ENV_YREG = ENV = (CELL *) ENV_YREG[E_E]; #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif /* SBA */ else ENV_YREG = (CELL *)((CELL)ENV_YREG + ENV_Size(CPREG)); } #else if (ENV_YREG > (CELL *)B) { ENV_YREG = (CELL *)B; } else { ENV_YREG = (CELL *) ((CELL) ENV_YREG + ENV_Size(CPREG)); } #endif /* FROZEN_STACKS */ WRITEBACK_Y_AS_ENV(); /* setup GB */ ENV_YREG[E_CB] = (CELL) B; ALWAYS_GONext(); ALWAYS_END_PREFETCH(); } ENDCACHE_Y_AS_ENV(); ENDBOp(); BOp(fcall, sla); CACHE_Y_AS_ENV(YREG); ENV_YREG[E_CP] = (CELL) CPREG; ENV_YREG[E_E] = (CELL) ENV; #ifdef DEPTH_LIMIT ENV_YREG[E_DEPTH] = DEPTH; #endif /* DEPTH_LIMIT */ ENDCACHE_Y_AS_ENV(); ENDBOp(); BOp(call, sla); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,PREG->u.sla.sla_u.p,XREGS+1); #endif /* LOW_LEVEL_TRACER */ CACHE_Y_AS_ENV(YREG); { PredEntry *pt; pt = PREG->u.sla.sla_u.p; CACHE_A1(); #ifndef NO_CHECKING check_stack(NoStackCall, H); #endif ENV = ENV_YREG; /* Try to preserve the environment */ ENV_YREG = (CELL *) (((char *) ENV_YREG) + PREG->u.sla.s); CPREG = NEXTOP(PREG, sla); ALWAYS_LOOKAHEAD(pt->OpcodeOfPred); PREG = pt->CodeOfPred; #ifdef DEPTH_LIMIT if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is primitives */ if (pt->ModuleOfPred) { if (DEPTH == MkIntTerm(0)) FAIL(); else DEPTH = RESET_DEPTH(); } } else if (pt->ModuleOfPred) DEPTH -= MkIntConstant(2); #endif /* DEPTH_LIMIT */ #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif /* SBA */ } #else if (ENV_YREG > (CELL *) B) { ENV_YREG = (CELL *) B; } #endif /* FROZEN_STACKS */ WRITEBACK_Y_AS_ENV(); /* setup GB */ ENV_YREG[E_CB] = (CELL) B; #ifdef YAPOR SCH_check_requests(); #endif /* YAPOR */ ALWAYS_GONext(); ALWAYS_END_PREFETCH(); } ENDCACHE_Y_AS_ENV(); ENDBOp(); NoStackCall: /* on X86 machines S will not actually be holding the pointer to pred */ if (ActiveSignals & YAP_CREEP_SIGNAL) { PredEntry *ap = PREG->u.sla.sla_u.p; if (ap->PredFlags & HiddenPredFlag) { CACHE_Y_AS_ENV(YREG); CACHE_A1(); ENV = ENV_YREG; /* Try to preserve the environment */ ENV_YREG = (CELL *) (((char *) YREG) + PREG->u.sla.s); CPREG = NEXTOP(PREG, sla); ALWAYS_LOOKAHEAD(ap->OpcodeOfPred); PREG = ap->CodeOfPred; check_depth(DEPTH, ap); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif } #else if (ENV_YREG > (CELL *) B) { ENV_YREG = (CELL *) B; } #endif /* FROZEN_STACKS */ WRITEBACK_Y_AS_ENV(); /* setup GB */ ENV_YREG[E_CB] = (CELL) B; #ifdef YAPOR SCH_check_requests(); #endif /* YAPOR */ ALWAYS_GONext(); ALWAYS_END_PREFETCH(); ENDCACHE_Y_AS_ENV(); } else { SREG = (CELL *) ap; goto creepc; } } SREG = (CELL *) PREG->u.sla.sla_u.p; if (ActiveSignals & YAP_CDOVF_SIGNAL) { ASP = (CELL *) (((char *) YREG) + PREG->u.sla.s); if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); goto noheapleft; } if (ActiveSignals) { goto creepc; } ASP = (CELL *) (((char *) YREG) + PREG->u.sla.s); if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); saveregs(); if (!Yap_gc(((PredEntry *)SREG)->ArityOfPE, YREG, NEXTOP(PREG, sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs(); JMPNext(); /* don't forget I cannot creep at deallocate (where to?) */ /* also, this is unusual in that I have already done deallocate, so I don't need to redo it. */ NoStackDeallocate: if (ActiveSignals & YAP_CREEP_SIGNAL) { GONext(); } ASP = YREG; /* cut_e */ if (SREG <= ASP) { ASP = SREG-EnvSizeInCells; } if (ActiveSignals & YAP_CDOVF_SIGNAL) { goto noheapleft; } if (ActiveSignals) { if (Yap_op_from_opcode(PREG->opc) == _cut_e) { /* followed by a cut */ ARG1 = MkIntegerTerm(LCL0-(CELL *)SREG[E_CB]); SREG = (CELL *)RepPredProp(Yap_GetPredPropByFunc(FunctorCutBy,1)); } else { SREG = (CELL *)RepPredProp(Yap_GetPredPropByAtom(AtomTrue,0)); } goto creep; } saveregs(); if (!Yap_gc(0, ENV, CPREG)) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs(); JMPNext(); #ifdef COROUTINING /* This is easier: I know there is an environment so I cannot do allocate */ NoStackCommitY: /* find something to fool S */ if (!ActiveSignals || ActiveSignals & YAP_CDOVF_SIGNAL) { goto do_commit_b_y; } if (!(ActiveSignals & YAP_CREEP_SIGNAL)) { SREG = (CELL *)RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(AtomRestoreRegs,2),0)); XREGS[0] = YREG[PREG->u.y.y]; PREG = NEXTOP(PREG,y); goto creep_either; } /* don't do debugging and friends here */ goto do_commit_b_y; /* Problem: have I got an environment or not? */ NoStackCommitX: /* find something to fool S */ if (!ActiveSignals || ActiveSignals & YAP_CDOVF_SIGNAL) { goto do_commit_b_x; } if (!(ActiveSignals & YAP_CREEP_SIGNAL)) { SREG = (CELL *)RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(AtomRestoreRegs,2),0)); #if USE_THREADED_CODE if (PREG->opc == (OPCODE)OpAddress[_fcall]) #else if (PREG->opc == _fcall) #endif { /* fill it up */ CACHE_Y_AS_ENV(YREG); ENV_YREG[E_CP] = (CELL) CPREG; ENV_YREG[E_E] = (CELL) ENV; #ifdef DEPTH_LIMIT ENV_YREG[E_DEPTH] = DEPTH; #endif /* DEPTH_LIMIT */ ENDCACHE_Y_AS_ENV(); } XREGS[0] = XREG(PREG->u.x.x); PREG = NEXTOP(PREG,x); goto creep_either; } /* don't do debugging and friends here */ goto do_commit_b_x; /* don't forget I cannot creep at ; */ NoStackEither: if (ActiveSignals & YAP_CREEP_SIGNAL) { goto either_notest; } /* find something to fool S */ SREG = (CELL *)RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(AtomRestoreRegs,1),0)); if (ActiveSignals & YAP_CDOVF_SIGNAL) { ASP = (CELL *) (((char *) YREG) + PREG->u.sla.s); if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); goto noheapleft; } if (ActiveSignals) { goto creep_either; } ASP = (CELL *) (((char *) YREG) + PREG->u.sla.s); if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); saveregs(); if (!Yap_gc(0, YREG, NEXTOP(PREG, sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs(); JMPNext(); creep_either: /* do creep in either */ ENV = YREG; CPREG = NEXTOP(PREG, sla); YREG = (CELL *) (((char *) YREG) + PREG->u.sla.s); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (YREG > (CELL *) top_b || YREG < H) YREG = (CELL *) top_b; #else if (YREG > (CELL *) top_b) YREG = (CELL *) top_b; #endif /* SBA */ else YREG = YREG + ENV_Size(CPREG); } #else if (YREG > (CELL *) B) YREG = (CELL *) B; #endif /* FROZEN_STACKS */ /* setup GB */ ARG1 = push_live_regs(CPREG); /* ARG0 has an extra argument for suspended cuts */ ARG2 = XREGS[0]; YREG[E_CB] = (CELL) B; goto creep; #endif creepc: /* do creep in call */ ENV = YREG; CPREG = NEXTOP(PREG, sla); YREG = (CELL *) (((char *) YREG) + PREG->u.sla.s); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (YREG > (CELL *) top_b || YREG < H) YREG = (CELL *) top_b; #else if (YREG > (CELL *) top_b) YREG = (CELL *) top_b; #endif /* SBA */ else YREG = YREG + ENV_Size(CPREG); } #else if (YREG > (CELL *) B) YREG = (CELL *) B; else /* I am not sure about this */ YREG = YREG + ENV_Size(CPREG); #endif /* FROZEN_STACKS */ /* setup GB */ YREG[E_CB] = (CELL) B; goto creep; NoStackDExecute: if (ActiveSignals & YAP_CREEP_SIGNAL) { PredEntry *ap = PREG->u.p.p; if (ap->PredFlags & HiddenPredFlag) { CACHE_Y_AS_ENV(YREG); CACHE_A1(); check_depth(DEPTH, ap); PREG = ap->CodeOfPred; ALWAYS_LOOKAHEAD(ap->OpcodeOfPred); /* do deallocate */ CPREG = (yamop *) ENV_YREG[E_CP]; ENV_YREG = ENV = (CELL *) ENV_YREG[E_E]; #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif else ENV_YREG = (CELL *)((CELL)ENV_YREG + ENV_Size(CPREG)); } #else if (ENV_YREG > (CELL *)B) { ENV_YREG = (CELL *)B; } else { ENV_YREG = (CELL *) ((CELL) ENV_YREG + ENV_Size(CPREG)); } #endif /* FROZEN_STACKS */ WRITEBACK_Y_AS_ENV(); /* setup GB */ ENV_YREG[E_CB] = (CELL) B; ALWAYS_GONext(); ALWAYS_END_PREFETCH(); ENDCACHE_Y_AS_ENV(); } else { SREG = (CELL *) ap; goto creepde; } } /* set SREG for next instructions */ SREG = (CELL *) PREG->u.p.p; if (ActiveSignals & YAP_CDOVF_SIGNAL) { ASP = YREG+E_CB; if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); goto noheapleft; } if (ActiveSignals) goto creepde; /* try performing garbage collection */ ASP = YREG+E_CB; if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); saveregs(); if (!Yap_gc(((PredEntry *)(SREG))->ArityOfPE, (CELL *)YREG[E_E], (yamop *)YREG[E_CP])) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs(); /* hopefully, gc will succeeded, and we will retry * the instruction */ JMPNext(); NoStackExec: /* try performing garbage collection */ ASP = YREG+E_CB; if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); saveregs(); if (!Yap_gc(((PredEntry *)(SREG))->ArityOfPE, ENV, CPREG)) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs(); /* hopefully, gc will succeeded, and we will retry * the instruction */ JMPNext(); creepde: /* first, deallocate */ CPREG = (yamop *) YREG[E_CP]; ENV = YREG = (CELL *) YREG[E_E]; #ifdef DEPTH_LIMIT YREG[E_DEPTH] = DEPTH; #endif /* DEPTH_LIMIT */ #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (YREG > (CELL *) top_b || YREG < H) YREG = (CELL *) top_b; #else if (YREG > (CELL *) top_b) YREG = (CELL *) top_b; #endif /* SBA */ else YREG = (CELL *) ((CELL)YREG + ENV_Size(CPREG)); } #else if (YREG > (CELL *) B) { YREG = (CELL *) B; } else { YREG = (CELL *) ((CELL) YREG + ENV_Size(CPREG)); } #endif /* FROZEN_STACKS */ /* setup GB */ YREG[E_CB] = (CELL) B; /* and now CREEP */ creep: #if _MSC_VER || defined(__MINGW32__) /* I need this for Windows and other systems where SIGINT is not proceesed by same thread as absmi */ LOCK(SignalLock); if (Yap_PrologMode & (AbortMode|InterruptMode)) { CFREG = CalculateStackGap(); UNLOCK(SignalLock); /* same instruction */ if (Yap_PrologMode & InterruptMode) { Yap_PrologMode &= ~InterruptMode; ASP = YREG+E_CB; if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); saveregs(); Yap_ProcessSIGINT(); setregs(); } JMPNext(); } UNLOCK(SignalLock); #endif #if SHADOW_S S = SREG; #endif BEGD(d0); d0 = ((PredEntry *)(SREG))->ArityOfPE; if (d0 == 0) { H[1] = MkAtomTerm((Atom) ((PredEntry *)(SREG))->FunctorOfPred); } else { H[d0 + 2] = AbsAppl(H); *H = (CELL) ((PredEntry *)(SREG))->FunctorOfPred; H++; BEGP(pt1); pt1 = XREGS + 1; for (; d0 > 0; --d0) { BEGD(d1); BEGP(pt0); pt0 = pt1; d1 = *pt0; deref_head(d1, creep_unk); creep_nonvar: /* just copy it to the heap */ pt1++; *H++ = d1; continue; derefa_body(d1, pt0, creep_unk, creep_nonvar); if (pt0 <= H) { /* variable is safe */ *H++ = (CELL)pt0; pt1++; } else { /* bind it, in case it is a local variable */ d1 = Unsigned(H); RESET_VARIABLE(H); pt1++; H += 1; Bind_Local(pt0, d1); } ENDP(pt0); ENDD(d1); } ENDP(pt1); } ENDD(d0); H[0] = Yap_Module_Name((PredEntry *)SREG); ARG1 = (Term) AbsPair(H); H += 2; LOCK(SignalLock); CFREG = CalculateStackGap(); #ifdef COROUTINING if (ActiveSignals & YAP_WAKEUP_SIGNAL) { ActiveSignals &= ~YAP_WAKEUP_SIGNAL; UNLOCK(SignalLock); ARG2 = Yap_ListOfWokenGoals(); SREG = (CELL *) (WakeUpCode); /* no more goals to wake up */ Yap_UpdateTimedVar(WokenGoals, TermNil); } else #endif SREG = (CELL *) CreepCode; UNLOCK(SignalLock); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,(PredEntry *)(SREG),XREGS+1); #endif /* LOW_LEVEL_TRACE */ PREG = ((PredEntry *)(SREG))->CodeOfPred; CACHE_A1(); JMPNext(); BOp(procceed, e); CACHE_Y_AS_ENV(YREG); PREG = CPREG; ENV_YREG = ENV; #ifdef DEPTH_LIMIT DEPTH = ENV_YREG[E_DEPTH]; #endif WRITEBACK_Y_AS_ENV(); JMPNext(); ENDCACHE_Y_AS_ENV(); ENDBOp(); Op(allocate, e); CACHE_Y_AS_ENV(YREG); PREG = NEXTOP(PREG, e); ENV_YREG[E_CP] = (CELL) CPREG; ENV_YREG[E_E] = (CELL) ENV; #ifdef DEPTH_LIMIT ENV_YREG[E_DEPTH] = DEPTH; #endif /* DEPTH_LIMIT */ ENV = ENV_YREG; ENDCACHE_Y_AS_ENV(); GONext(); ENDOp(); Op(deallocate, e); CACHE_Y_AS_ENV(YREG); PREG = NEXTOP(PREG, e); /* other instructions do depend on S being set by deallocate :-( */ SREG = YREG; CPREG = (yamop *) ENV_YREG[E_CP]; ENV = ENV_YREG = (CELL *) ENV_YREG[E_E]; #ifdef DEPTH_LIMIT DEPTH = ENV_YREG[E_DEPTH]; #endif /* DEPTH_LIMIT */ #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif /* SBA */ else ENV_YREG = (CELL *)((CELL) ENV_YREG + ENV_Size(CPREG)); } #else if (ENV_YREG > (CELL *) B) ENV_YREG = (CELL *) B; else ENV_YREG = (CELL *) ((CELL) ENV_YREG + ENV_Size(CPREG)); #endif /* FROZEN_STACKS */ WRITEBACK_Y_AS_ENV(); #ifndef NO_CHECKING /* check stacks */ check_stack(NoStackDeallocate, H); #endif ENDCACHE_Y_AS_ENV(); GONext(); ENDOp(); /********************************************** * OPTYap instructions * **********************************************/ #ifdef YAPOR #include "or.insts.i" #endif /* YAPOR */ #ifdef TABLING #include "tab.insts.i" #include "tab.tries.insts.i" #endif /* TABLING */ #ifdef BEAM extern int eam_am(PredEntry *); Op(run_eam, s); if (!eam_am((PredEntry *) PREG->u.s.s)) FAIL(); PREG = NEXTOP(PREG, s); GONext(); ENDOp(); #endif /************************************************************************\ * Get Instructions * \************************************************************************/ Op(get_x_var, xx); BEGD(d0); d0 = XREG(PREG->u.xx.xr); XREG(PREG->u.xx.xl) = d0; PREG = NEXTOP(PREG, xx); ENDD(d0); GONext(); ENDOp(); Op(get_y_var, yx); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yx.y; d0 = XREG(PREG->u.yx.x); PREG = NEXTOP(PREG, yx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ GONext(); ENDP(pt0); ENDD(d0); ENDOp(); /* The code for get_x_val is hard to follow because I use a * lot of jumps. The convention is that in the label * gval_X_YREG X refers to the state of the first argument, and * YREG to the state of the second argument */ Op(get_x_val, xx); BEGD(d0); d0 = XREG(PREG->u.xx.xl); deref_head(d0, gvalx_unk); /* d0 will keep the first argument */ gvalx_nonvar: /* first argument is bound */ BEGD(d1); d1 = XREG(PREG->u.xx.xr); deref_head(d1, gvalx_nonvar_unk); gvalx_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, xx); UnifyBound(d0, d1); BEGP(pt0); /* deref second argument */ deref_body(d1, pt0, gvalx_nonvar_unk, gvalx_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, xx); BIND(pt0, d0, bind_gvalx_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_gvalx_nonvar_var: #endif GONext(); ENDP(pt0); ENDD(d1); BEGP(pt0); /* first argument may be unbound */ deref_body(d0, pt0, gvalx_unk, gvalx_nonvar); /* first argument is unbound and in pt0 and in d0 */ BEGD(d1); d1 = XREG(PREG->u.xx.xr); deref_head(d1, gvalx_var_unk); gvalx_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, xx); BIND(pt0, d1, bind_gvalx_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_gvalx_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, gvalx_var_unk, gvalx_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, xx); UnifyCells(pt0, pt1, uc1, uc2); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc1: #endif GONext(); #ifdef COROUTINING uc2: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDD(d1); ENDP(pt0); ENDD(d0); ENDOp(); /* The code for get_y_val mostly uses the code for get_x_val */ Op(get_y_val, yx); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = YREG + PREG->u.yx.y; d0 = *pt0; /* From now on, it's just a copy of the code for get_x_val */ deref_head(d0, gvaly_unk); gvaly_nonvar: /* first argument is bound */ d1 = XREG(PREG->u.yx.x); deref_head(d1, gvaly_nonvar_unk); gvaly_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, yx); UnifyBound(d0, d1); BEGP(pt1); /* deref second argument */ deref_body(d1, pt1, gvaly_nonvar_unk, gvaly_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, yx); BIND(pt1, d0, bind_gvaly_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_gvaly_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, gvaly_unk, gvaly_nonvar); /* first argument is unbound */ d1 = XREG(PREG->u.yx.x); deref_head(d1, gvaly_var_unk); gvaly_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, yx); BIND(pt0, d1, bind_gvaly_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_gvaly_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, gvaly_var_unk, gvaly_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, yx); UnifyCells(pt0, pt1, uc3, uc4); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc3: #endif GONext(); #ifdef COROUTINING uc4: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(get_atom, xc); BEGD(d0); BEGD(d1); /* fetch arguments */ d0 = XREG(PREG->u.xc.x); d1 = PREG->u.xc.c; BEGP(pt0); deref_head(d0, gatom_unk); /* argument is nonvar */ gatom_nonvar: if (d0 == d1) { PREG = NEXTOP(PREG, xc); GONext(); } else { FAIL(); } deref_body(d0, pt0, gatom_unk, gatom_nonvar); /* argument is a variable */ PREG = NEXTOP(PREG, xc); BIND(pt0, d1, bind_gatom); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_gatom: #endif GONext(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(get_2atoms, cc); BEGD(d0); BEGD(d1); /* fetch arguments */ d0 = ARG1; BEGP(pt0); deref_head(d0, gatom_2unk); /* argument is nonvar */ gatom_2nonvar: if (d0 == PREG->u.cc.c1) { goto gatom_2b; } else { FAIL(); } deref_body(d0, pt0, gatom_2unk, gatom_2nonvar); /* argument is a variable */ BIND(pt0, PREG->u.cc.c1, gatom_2b); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cc.c1); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_2b: /* fetch arguments */ d0 = ARG2; d1 = PREG->u.cc.c2; BEGP(pt0); deref_head(d0, gatom_2bunk); /* argument is nonvar */ gatom_2bnonvar: if (d0 == d1) { PREG = NEXTOP(PREG, cc); GONext(); } else { FAIL(); } deref_body(d0, pt0, gatom_2bunk, gatom_2bnonvar); /* argument is a variable */ PREG = NEXTOP(PREG, cc); BIND(pt0, d1, gatom_2c); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); gatom_2c: #endif GONext(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(get_3atoms, ccc); BEGD(d0); BEGD(d1); /* fetch arguments */ d0 = ARG1; BEGP(pt0); deref_head(d0, gatom_3unk); /* argument is nonvar */ gatom_3nonvar: if (d0 == PREG->u.ccc.c1) { goto gatom_3b; } else { FAIL(); } deref_body(d0, pt0, gatom_3unk, gatom_3nonvar); /* argument is a variable */ BIND(pt0, PREG->u.ccc.c1, gatom_3b); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.ccc.c1); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_3b: /* fetch arguments */ d0 = ARG2; BEGP(pt0); deref_head(d0, gatom_3bunk); /* argument is nonvar */ gatom_3bnonvar: if (d0 == PREG->u.ccc.c2) { goto gatom_3c; } else { FAIL(); } deref_body(d0, pt0, gatom_3bunk, gatom_3bnonvar); /* argument is a variable */ BIND(pt0, PREG->u.ccc.c2, gatom_3c); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.ccc.c2); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_3c: /* fetch arguments */ d0 = ARG3; d1 = PREG->u.ccc.c3; BEGP(pt0); deref_head(d0, gatom_3cunk); /* argument is nonvar */ gatom_3cnonvar: if (d0 == d1) { PREG = NEXTOP(PREG, ccc); GONext(); } else { FAIL(); } deref_body(d0, pt0, gatom_3cunk, gatom_3cnonvar); /* argument is a variable */ PREG = NEXTOP(PREG, ccc); BIND(pt0, d1, gatom_3d); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); gatom_3d: #endif GONext(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(get_4atoms, cccc); BEGD(d0); BEGD(d1); /* fetch arguments */ d0 = ARG1; BEGP(pt0); deref_head(d0, gatom_4unk); /* argument is nonvar */ gatom_4nonvar: if (d0 == PREG->u.cccc.c1) { goto gatom_4b; } else { FAIL(); } deref_body(d0, pt0, gatom_4unk, gatom_4nonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccc.c1, gatom_4b); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccc.c1); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_4b: /* fetch arguments */ d0 = ARG2; BEGP(pt0); deref_head(d0, gatom_4bunk); /* argument is nonvar */ gatom_4bnonvar: if (d0 == PREG->u.cccc.c2) { goto gatom_4c; } else { FAIL(); } deref_body(d0, pt0, gatom_4bunk, gatom_4bnonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccc.c2, gatom_4c); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccc.c2); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_4c: /* fetch arguments */ d0 = ARG3; BEGP(pt0); deref_head(d0, gatom_4cunk); /* argument is nonvar */ gatom_4cnonvar: if (d0 == PREG->u.cccc.c3) { goto gatom_4d; } else { FAIL(); } deref_body(d0, pt0, gatom_4cunk, gatom_4cnonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccc.c3, gatom_4d); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccc.c3); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_4d: /* fetch arguments */ d0 = ARG4; d1 = PREG->u.cccc.c4; BEGP(pt0); deref_head(d0, gatom_4dunk); /* argument is nonvar */ gatom_4dnonvar: if (d0 == d1) { PREG = NEXTOP(PREG, cccc); GONext(); } else { FAIL(); } deref_body(d0, pt0, gatom_4dunk, gatom_4dnonvar); /* argument is a variable */ PREG = NEXTOP(PREG, cccc); BIND(pt0, d1, gatom_4e); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); gatom_4e: #endif GONext(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(get_5atoms, ccccc); BEGD(d0); BEGD(d1); /* fetch arguments */ d0 = ARG1; BEGP(pt0); deref_head(d0, gatom_5unk); /* argument is nonvar */ gatom_5nonvar: if (d0 == PREG->u.ccccc.c1) { goto gatom_5b; } else { FAIL(); } deref_body(d0, pt0, gatom_5unk, gatom_5nonvar); /* argument is a variable */ BIND(pt0, PREG->u.ccccc.c1, gatom_5b); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.ccccc.c1); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_5b: /* fetch arguments */ d0 = ARG2; BEGP(pt0); deref_head(d0, gatom_5bunk); /* argument is nonvar */ gatom_5bnonvar: if (d0 == PREG->u.ccccc.c2) { goto gatom_5c; } else { FAIL(); } deref_body(d0, pt0, gatom_5bunk, gatom_5bnonvar); /* argument is a variable */ BIND(pt0, PREG->u.ccccc.c2, gatom_5c); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.ccccc.c2); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_5c: /* fetch arguments */ d0 = ARG3; BEGP(pt0); deref_head(d0, gatom_5cunk); /* argument is nonvar */ gatom_5cnonvar: if (d0 == PREG->u.ccccc.c3) { goto gatom_5d; } else { FAIL(); } deref_body(d0, pt0, gatom_5cunk, gatom_5cnonvar); /* argument is a variable */ BIND(pt0, PREG->u.ccccc.c3, gatom_5d); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.ccccc.c3); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_5d: /* fetch arguments */ d0 = ARG4; BEGP(pt0); deref_head(d0, gatom_5dunk); /* argument is nonvar */ gatom_5dnonvar: if (d0 == PREG->u.ccccc.c4) { goto gatom_5e; } else { FAIL(); } deref_body(d0, pt0, gatom_5dunk, gatom_5dnonvar); /* argument is a variable */ BIND(pt0, PREG->u.ccccc.c4, gatom_5e); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.ccccc.c4); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_5e: /* fetch arguments */ d0 = ARG5; d1 = PREG->u.ccccc.c5; BEGP(pt0); deref_head(d0, gatom_5eunk); /* argument is nonvar */ gatom_5enonvar: if (d0 == d1) { PREG = NEXTOP(PREG, ccccc); GONext(); } else { FAIL(); } deref_body(d0, pt0, gatom_5eunk, gatom_5enonvar); /* argument is a variable */ PREG = NEXTOP(PREG, ccccc); BIND(pt0, d1, gatom_5f); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); gatom_5f: #endif GONext(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(get_6atoms, cccccc); BEGD(d0); BEGD(d1); /* fetch arguments */ d0 = ARG1; BEGP(pt0); deref_head(d0, gatom_6unk); /* argument is nonvar */ gatom_6nonvar: if (d0 == PREG->u.cccccc.c1) { goto gatom_6b; } else { FAIL(); } deref_body(d0, pt0, gatom_6unk, gatom_6nonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccccc.c1, gatom_6b); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccccc.c1); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_6b: /* fetch arguments */ d0 = ARG2; BEGP(pt0); deref_head(d0, gatom_6bunk); /* argument is nonvar */ gatom_6bnonvar: if (d0 == PREG->u.cccccc.c2) { goto gatom_6c; } else { FAIL(); } deref_body(d0, pt0, gatom_6bunk, gatom_6bnonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccccc.c2, gatom_6c); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccccc.c2); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_6c: /* fetch arguments */ d0 = ARG3; BEGP(pt0); deref_head(d0, gatom_6cunk); /* argument is nonvar */ gatom_6cnonvar: if (d0 == PREG->u.cccccc.c3) { goto gatom_6d; } else { FAIL(); } deref_body(d0, pt0, gatom_6cunk, gatom_6cnonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccccc.c3, gatom_6d); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccccc.c3); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_6d: /* fetch arguments */ d0 = ARG4; BEGP(pt0); deref_head(d0, gatom_6dunk); /* argument is nonvar */ gatom_6dnonvar: if (d0 == PREG->u.cccccc.c4) { goto gatom_6e; } else { FAIL(); } deref_body(d0, pt0, gatom_6dunk, gatom_6dnonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccccc.c4, gatom_6e); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccccc.c4); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_6e: /* fetch arguments */ d0 = ARG5; BEGP(pt0); deref_head(d0, gatom_6eunk); /* argument is nonvar */ gatom_6enonvar: if (d0 == PREG->u.cccccc.c5) { goto gatom_6f; } else { FAIL(); } deref_body(d0, pt0, gatom_6eunk, gatom_6enonvar); /* argument is a variable */ BIND(pt0, PREG->u.cccccc.c5, gatom_6f); #ifdef COROUTINING DO_TRAIL(pt0, PREG->u.cccccc.c5); if (pt0 < H0) Yap_WakeUp(pt0); #endif ENDP(pt0); gatom_6f: /* fetch arguments */ d0 = ARG6; d1 = PREG->u.cccccc.c6; BEGP(pt0); deref_head(d0, gatom_6funk); /* argument is nonvar */ gatom_6fnonvar: if (d0 == d1) { PREG = NEXTOP(PREG, cccccc); GONext(); } else { FAIL(); } deref_body(d0, pt0, gatom_6funk, gatom_6fnonvar); /* argument is a variable */ PREG = NEXTOP(PREG, cccccc); BIND(pt0, d1, gatom_6g); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); gatom_6g: #endif GONext(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); /* The next instructions can lead to either the READ stream * or the write stream */ OpRW(get_list, x); BEGD(d0); d0 = XREG(PREG->u.x.x); deref_head(d0, glist_unk); glist_nonvar: /* did we find a list? */ if (!IsPairTerm(d0)) { FAIL(); } START_PREFETCH(x); PREG = NEXTOP(PREG, x); /* enter read mode */ SREG = RepPair(d0); GONext(); END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, glist_unk, glist_nonvar); /* glist var */ /* enter write mode */ CACHE_S(); S_SREG = H; START_PREFETCH_W(x); PREG = NEXTOP(PREG, x); BEGD(d0); d0 = AbsPair(S_SREG); BIND(pt0, d0, bind_glist); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) { Yap_WakeUp(pt0); S_SREG = H; } bind_glist: #endif /* don't put an ENDD just after a label */ H = S_SREG + 2; ENDD(d0); WRITEBACK_S(S_SREG); GONextW(); END_PREFETCH_W(); ENDCACHE_S(); ENDP(pt0); ENDD(d0); ENDOpRW(); OpRW(get_struct, xf); BEGD(d0); d0 = XREG(PREG->u.xf.x); deref_head(d0, gstruct_unk); gstruct_nonvar: if (!IsApplTerm(d0)) FAIL(); /* we have met a compound term */ START_PREFETCH(xf); CACHE_S(); S_SREG = RepAppl(d0); /* check functor */ d0 = (CELL) (PREG->u.xf.f); if (*S_SREG != d0) { FAIL(); } WRITEBACK_S(S_SREG+1); ENDCACHE_S(); PREG = NEXTOP(PREG, xf); /* enter read mode */ GONext(); END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, gstruct_unk, gstruct_nonvar); /* Enter Write mode */ /* set d1 to be the new structure we are going to create */ START_PREFETCH_W(xf); BEGD(d1); d1 = AbsAppl(H); BIND(pt0, d1, bind_gstruct); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_gstruct: #endif /* now, set pt0 to point to the heap where we are going to * build our term */ pt0 = H; ENDD(d1); /* first, put the functor */ d0 = (CELL) (PREG->u.xf.f); *pt0++ = d0; H = pt0 + PREG->u.xf.a; PREG = NEXTOP(PREG, xf); /* set SREG */ SREG = pt0; /* update H */ GONextW(); END_PREFETCH_W(); ENDP(pt0); ENDD(d0); ENDOpRW(); Op(get_float, xc); BEGD(d0); d0 = XREG(PREG->u.xc.x); deref_head(d0, gfloat_unk); gfloat_nonvar: if (!IsApplTerm(d0)) FAIL(); /* we have met a preexisting float */ START_PREFETCH(xc); BEGP(pt0); pt0 = RepAppl(d0); /* check functor */ if (*pt0 != (CELL)FunctorDouble) { FAIL(); } BEGP(pt1); pt1 = RepAppl(PREG->u.xc.c); if ( pt1[1] != pt0[1] #if SIZEOF_DOUBLE == 2*SIZEOF_INT_P || pt1[2] != pt0[2] #endif ) FAIL(); ENDP(pt1); ENDP(pt0); PREG = NEXTOP(PREG, xc); /* enter read mode */ GONext(); END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, gfloat_unk, gfloat_nonvar); /* Enter Write mode */ /* set d1 to be the new structure we are going to create */ START_PREFETCH(xc); BEGD(d1); d1 = PREG->u.xc.c; PREG = NEXTOP(PREG, xc); BIND(pt0, d1, bind_gfloat); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_gfloat: #endif GONext(); ENDD(d1); END_PREFETCH(); ENDP(pt0); ENDD(d0); ENDOp(); Op(get_longint, xc); BEGD(d0); d0 = XREG(PREG->u.xc.x); deref_head(d0, glongint_unk); glongint_nonvar: if (!IsApplTerm(d0)) FAIL(); /* we have met a preexisting longint */ START_PREFETCH(xc); BEGP(pt0); pt0 = RepAppl(d0); /* check functor */ if (*pt0 != (CELL)FunctorLongInt) { FAIL(); } BEGP(pt1); pt1 = RepAppl(PREG->u.xc.c); if (pt1[1] != pt0[1]) FAIL(); ENDP(pt1); ENDP(pt0); PREG = NEXTOP(PREG, xc); /* enter read mode */ GONext(); END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, glongint_unk, glongint_nonvar); /* Enter Write mode */ /* set d1 to be the new structure we are going to create */ START_PREFETCH(xc); BEGD(d1); d1 = PREG->u.xc.c; PREG = NEXTOP(PREG, xc); BIND(pt0, d1, bind_glongint); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_glongint: #endif GONext(); ENDD(d1); END_PREFETCH(); ENDP(pt0); ENDD(d0); ENDOp(); Op(get_bigint, xc); BEGD(d0); d0 = XREG(PREG->u.xc.x); deref_head(d0, gbigint_unk); gbigint_nonvar: if (!IsApplTerm(d0)) FAIL(); /* we have met a preexisting bigint */ START_PREFETCH(xc); #ifdef USE_GMP BEGP(pt0); pt0 = RepAppl(d0); /* check functor */ if (*pt0 != (CELL)FunctorBigInt) #else if (TRUE) #endif { FAIL(); } #ifdef USE_GMP if (mpz_cmp(Yap_BigIntOfTerm(d0),Yap_BigIntOfTerm(PREG->u.xc.c))) FAIL(); #endif PREG = NEXTOP(PREG, xc); #ifdef USE_GMP ENDP(pt0); #endif /* enter read mode */ GONext(); END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, gbigint_unk, gbigint_nonvar); /* Enter Write mode */ /* set d1 to be the new structure we are going to create */ START_PREFETCH(xc); BEGD(d1); d1 = PREG->u.xc.c; PREG = NEXTOP(PREG, xc); BIND(pt0, d1, bind_gbigint); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_gbigint: #endif GONext(); ENDD(d1); END_PREFETCH(); ENDP(pt0); ENDD(d0); ENDOp(); /************************************************************************\ * Optimised Get List Instructions * \************************************************************************/ OpRW(glist_valx, xx); BEGD(d0); d0 = XREG(PREG->u.xx.xl); deref_head(d0, glist_valx_write); glist_valx_read: BEGP(pt0); /* did we find a list? */ if (!IsPairTerm(d0)) FAIL(); /* enter read mode */ START_PREFETCH(xx); pt0 = RepPair(d0); SREG = pt0 + 1; /* start unification with first argument */ d0 = *pt0; deref_head(d0, glist_valx_unk); /* first argument is in d0 */ glist_valx_nonvar: /* first argument is bound */ BEGD(d1); d1 = XREG(PREG->u.xx.xr); deref_head(d1, glist_valx_nonvar_unk); glist_valx_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, xx); UnifyBound(d0, d1); BEGP(pt1); /* deref second argument */ deref_body(d1, pt1, glist_valx_nonvar_unk, glist_valx_nonvar_nonvar); /* head bound, argument unbound */ PREG = NEXTOP(PREG, xx); BIND(pt1, d0, bind_glist_valx_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_glist_valx_nonvar_var: #endif GONext(); ENDP(pt1); ENDD(d1); /* head may be unbound */ derefa_body(d0, pt0, glist_valx_unk, glist_valx_nonvar); /* head is unbound, pt0 has the value */ d0 = XREG(PREG->u.xx.xr); deref_head(d0, glist_valx_var_unk); glist_valx_var_nonvar: /* head is unbound, second arg bound */ PREG = NEXTOP(PREG, xx); BIND_GLOBAL(pt0, d0, bind_glist_valx_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_valx_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d0, pt1, glist_valx_var_unk, glist_valx_var_nonvar); /* head and second argument are unbound */ PREG = NEXTOP(PREG, xx); UnifyGlobalRegCells(pt0, pt1, uc5, uc6); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc5: #endif GONext(); #ifdef COROUTINING uc6: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, glist_valx_write, glist_valx_read); CACHE_S(); /* enter write mode */ S_SREG = H; BEGD(d1); d1 = XREG(PREG->u.xx.xr); d0 = AbsPair(S_SREG); S_SREG[0] = d1; ENDD(d1); ALWAYS_START_PREFETCH_W(xx); #ifdef COROUTINING PREG = NEXTOP(PREG, xx); H = S_SREG + 2; WRITEBACK_S(S_SREG+1); #endif DBIND(pt0, d0, dbind); #ifndef COROUTINING /* include XREG on it */ PREG = NEXTOP(PREG, xx); H = S_SREG + 2; WRITEBACK_S(S_SREG+1); #endif #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); dbind: #endif ALWAYS_GONextW(); ALWAYS_END_PREFETCH_W(); ENDCACHE_S(); ENDP(pt0); ENDD(d0); ENDOpRW(); OpRW(glist_valy, xy); BEGD(d0); d0 = XREG(PREG->u.xy.x); deref_head(d0, glist_valy_write); glist_valy_read: BEGP(pt0); /* did we find a list? */ if (!IsPairTerm(d0)) FAIL(); START_PREFETCH(xy); /* enter read mode */ pt0 = RepPair(d0); SREG = pt0 + 1; /* start unification with first argument */ d0 = *pt0; deref_head(d0, glist_valy_unk); glist_valy_nonvar: /* first argument is bound */ BEGD(d1); BEGP(pt1); pt1 = YREG + PREG->u.xy.y; d1 = *pt1; PREG = NEXTOP(PREG, xy); deref_head(d1, glist_valy_nonvar_unk); glist_valy_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ SREG = pt0 + 1; UnifyBound(d0, d1); /* deref second argument */ derefa_body(d1, pt1, glist_valy_nonvar_unk, glist_valy_nonvar_nonvar); /* first argument bound, second unbound */ BIND(pt1, d0, bind_glist_valy_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_glist_valy_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, glist_valy_unk, glist_valy_nonvar); /* first argument is unbound */ BEGP(pt1); pt1 = YREG+PREG->u.xy.y; d1 = *pt1; deref_head(d1, glist_valy_var_unk); glist_valy_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, xy); BIND_GLOBAL(pt0, d1, bind_glist_valy_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_valy_var_nonvar: #endif GONext(); derefa_body(d1, pt1, glist_valy_var_unk, glist_valy_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, xy); UnifyGlobalRegCells(pt0, pt1, uc7, uc8); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc7: #endif GONext(); #ifdef COROUTINING uc8: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDD(d1); END_PREFETCH(); ENDP(pt0); BEGP(pt0); deref_body(d0, pt0, glist_valy_write, glist_valy_read); /* enter write mode */ START_PREFETCH_W(xy); BEGP(pt1); pt1 = H; d0 = AbsPair(pt1); BIND(pt0, d0, bind_glist_valy_write); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_valy_write: #endif BEGD(d0); /* include XREG on it */ d0 = YREG[PREG->u.xy.y]; pt1[0] = d0; ENDD(d0); H = pt1 + 2; SREG = pt1 + 1; ENDP(pt1); PREG = NEXTOP(PREG, xy); GONextW(); END_PREFETCH_W(); ENDP(pt0); ENDD(d0); ENDOpRW(); Op(gl_void_varx, xx); BEGD(d0); d0 = XREG(PREG->u.xx.xl); deref_head(d0, glist_void_varx_write); glist_void_varx_read: /* did we find a list? */ if (!IsPairTerm(d0)) FAIL(); ALWAYS_START_PREFETCH(xx); /* enter read mode */ BEGP(pt0); pt0 = RepPair(d0); d0 = pt0[1]; XREG(PREG->u.xx.xr) = d0; PREG = NEXTOP(PREG, xx); ALWAYS_GONext(); ENDP(pt0); ALWAYS_END_PREFETCH(); BEGP(pt0); deref_body(d0, pt0, glist_void_varx_write, glist_void_varx_read); /* enter write mode */ BEGP(pt1); pt1 = H; /* include XREG on it */ XREG(PREG->u.xx.xr) = Unsigned(pt1 + 1); RESET_VARIABLE(pt1); RESET_VARIABLE(pt1+1); H = pt1 + 2; BEGD(d0); d0 = AbsPair(pt1); BIND(pt0, d0, bind_glist_varx_write); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_varx_write: #endif PREG = NEXTOP(PREG, xx); ENDD(d0); ENDP(pt1); GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(gl_void_vary, xy); BEGD(d0); d0 = XREG(PREG->u.xy.x); deref_head(d0, glist_void_vary_write); glist_void_vary_read: /* did we find a list? */ if (!IsPairTerm(d0)) FAIL(); /* enter read mode */ BEGP(pt0); pt0 = RepPair(d0); d0 = pt0[1]; ENDP(pt0); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.xy.y,d0); #else YREG[PREG->u.xy.y] = d0; #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, xy); GONext(); BEGP(pt0); deref_body(d0, pt0, glist_void_vary_write, glist_void_vary_read); /* enter write mode */ BEGP(pt1); pt1 = H; /* include XREG on it */ #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.xy.y,Unsigned(pt1 + 1)); #else YREG[PREG->u.xy.y] = Unsigned(pt1 + 1); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, xy); RESET_VARIABLE(pt1); RESET_VARIABLE(pt1+1); d0 = AbsPair(pt1); H = pt1 + 2; BIND(pt0, d0, bind_glist_void_vary_write); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_void_vary_write: #endif GONext(); ENDP(pt1); ENDP(pt0); ENDD(d0); ENDOp(); Op(gl_void_valx, xx); BEGD(d0); d0 = XREG(PREG->u.xx.xl); deref_head(d0, glist_void_valx_write); glist_void_valx_read: BEGP(pt0); /* did we find a list? */ if (!IsPairTerm(d0)) FAIL(); /* enter read mode */ pt0 = RepPair(d0)+1; /* start unification with first argument */ d0 = *pt0; deref_head(d0, glist_void_valx_unk); glist_void_valx_nonvar: /* first argument is bound */ BEGD(d1); d1 = XREG(PREG->u.xx.xr); deref_head(d1, glist_void_valx_nonvar_unk); glist_void_valx_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, xx); UnifyBound(d0, d1); /* deref second argument */ BEGP(pt1); deref_body(d1, pt1, glist_void_valx_nonvar_unk, glist_void_valx_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, xx); BIND(pt1, d0, bind_glist_void_valx_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_glist_void_valx_nonvar_var: #endif GONext(); ENDP(pt1); ENDD(d1); /* first argument may be unbound */ derefa_body(d0, pt0, glist_void_valx_unk, glist_void_valx_nonvar); /* first argument is unbound */ BEGD(d1); d1 = XREG(PREG->u.xx.xr); deref_head(d1, glist_void_valx_var_unk); glist_void_valx_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, xx); BIND_GLOBAL(pt0, d1, bind_glist_void_valx_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_void_valx_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, glist_void_valx_var_unk, glist_void_valx_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, xx); UnifyGlobalRegCells(pt0, pt1, uc9, uc10); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc9: #endif GONext(); #ifdef COROUTINING uc10: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDD(d1); ENDP(pt0); BEGP(pt0); deref_body(d0, pt0, glist_void_valx_write, glist_void_valx_read); /* enter write mode */ BEGP(pt1); pt1 = H; d0 = AbsPair(SREG); BIND(pt0, d0, bind_glist_void_valx_write); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_void_valx_write: #endif BEGD(d0); /* include XREG on it */ d0 = XREG(PREG->u.xx.xr); RESET_VARIABLE(pt1); pt1[1] = d0; H = pt1 + 2; ENDD(d0); ENDP(pt1); PREG = NEXTOP(PREG, xx); GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(gl_void_valy, xy); BEGD(d0); d0 = XREG(PREG->u.xy.x); deref_head(d0, glist_void_valy_write); glist_void_valy_read: BEGP(pt0); /* did we find a list? */ if (!IsPairTerm(d0)) FAIL(); /* enter read mode */ pt0 = RepPair(d0)+1; /* start unification with first argument */ d0 = *pt0; deref_head(d0, glist_void_valy_unk); glist_void_valy_nonvar: /* first argument is bound */ BEGD(d1); BEGP(pt1); pt1 = YREG+PREG->u.xy.y; d1 = *pt1; deref_head(d1, glist_void_valy_nonvar_unk); glist_void_valy_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, xy); UnifyBound(d0, d1); /* deref second argument */ derefa_body(d1, pt1, glist_void_valy_nonvar_unk, glist_void_valy_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, xy); BIND(pt1, d0, bind_glist_void_valy_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_glist_void_valy_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, glist_void_valy_unk, glist_void_valy_nonvar); /* first argument is unbound */ BEGP(pt1); pt1 = YREG+PREG->u.xy.y; d1 = *pt1; deref_head(d1, glist_void_valy_var_unk); glist_void_valy_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, xy); BIND_GLOBAL(pt0, d1, bind_glist_void_valy_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_void_valy_var_nonvar: #endif GONext(); deref_body(d1, pt1, glist_void_valy_var_unk, glist_void_valy_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, xy); UnifyGlobalRegCells(pt0, pt1, uc11, uc12); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc11: #endif GONext(); #ifdef COROUTINING uc12: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDD(d1); ENDP(pt0); BEGP(pt0); deref_body(d0, pt0, glist_void_valy_write, glist_void_valy_read); /* enter write mode */ CACHE_S(); S_SREG = H; d0 = AbsPair(S_SREG); BIND(pt0, d0, bind_glist_void_valy_write); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_glist_void_valy_write: #endif /* include XREG on it */ BEGD(d1); d1 = YREG[PREG->u.xy.y]; RESET_VARIABLE(S_SREG); S_SREG[1] = d1; ENDD(d1); PREG = NEXTOP(PREG, xy); H = S_SREG + 2; ENDCACHE_S(); GONext(); ENDP(pt0); ENDD(d0); ENDOp(); /************************************************************************\ * Unify instructions * \************************************************************************/ Op(unify_x_var, ox); CACHE_S(); READ_IN_S(); BEGD(d0); d0 = *S_SREG; #if SBA if (d0 == 0) d0 = (CELL)S_SREG; #endif WRITEBACK_S(S_SREG+1); ALWAYS_START_PREFETCH(ox); XREG(PREG->u.ox.x) = d0; PREG = NEXTOP(PREG, ox); ALWAYS_GONext(); ALWAYS_END_PREFETCH(); ENDD(d0); ENDCACHE_S(); ENDOp(); OpW(unify_x_var_write, ox); CACHE_S(); READ_IN_S(); BEGP(pt0); pt0 = &XREG(PREG->u.ox.x); PREG = NEXTOP(PREG, ox); RESET_VARIABLE(S_SREG); *pt0 = (CELL) S_SREG; WRITEBACK_S(S_SREG+1); ENDP(pt0); ENDCACHE_S(); GONextW(); ENDOpW(); BOp(unify_l_x_var, ox); ALWAYS_START_PREFETCH(ox); BEGP(pt0); BEGD(d0); d0 = SREG[0]; pt0 = &XREG(PREG->u.ox.x); PREG = NEXTOP(PREG, ox); #if SBA if (d0 == 0) d0 = (CELL)SREG; #endif *pt0 = d0; ALWAYS_GONext(); ENDD(d0); ENDP(pt0); ALWAYS_END_PREFETCH(); ENDBOp(); BOp(unify_l_x_var_write, ox); ALWAYS_START_PREFETCH(ox); CACHE_S(); READ_IN_S(); BEGP(pt0); pt0 = &XREG(PREG->u.ox.x); PREG = NEXTOP(PREG, ox); RESET_VARIABLE(S_SREG); *pt0 = (CELL)S_SREG; ENDP(pt0); ENDCACHE_S(); ALWAYS_GONext(); ENDBOp(); ALWAYS_END_PREFETCH(); BOp(unify_x_var2, oxx); CACHE_S(); ALWAYS_START_PREFETCH(oxx); READ_IN_S(); BEGP(pt0); pt0 = &XREG(PREG->u.oxx.xr); BEGD(d0); d0 = S_SREG[0]; BEGD(d1); d1 = S_SREG[1]; #if SBA if (d0 == 0) d0 = (CELL)S_SREG; if (d1 == 0) d1 = (CELL)(S_SREG+1); #endif WRITEBACK_S(S_SREG+2); XREG(PREG->u.oxx.xl) = d0; PREG = NEXTOP(PREG, oxx); *pt0 = d1; ENDD(d0); ENDD(d1); ENDP(pt0); ALWAYS_GONext(); ENDBOp(); ALWAYS_END_PREFETCH(); ENDCACHE_S(); OpW(unify_x_var2_write, oxx); CACHE_S(); READ_IN_S(); BEGP(pt0); pt0 = &XREG(PREG->u.oxx.xr); RESET_VARIABLE(S_SREG); XREG(PREG->u.oxx.xl) = (CELL) S_SREG; S_SREG++; PREG = NEXTOP(PREG, oxx); RESET_VARIABLE(S_SREG); *pt0 = (CELL) S_SREG; ENDP(pt0); WRITEBACK_S(S_SREG+1); ENDCACHE_S(); GONextW(); ENDOpW(); BOp(unify_l_x_var2, oxx); ALWAYS_START_PREFETCH(oxx); CACHE_S(); READ_IN_S(); BEGP(pt0); pt0 = &XREG(PREG->u.oxx.xr); BEGD(d0); d0 = S_SREG[0]; BEGD(d1); d1 = S_SREG[1]; #if SBA if (d0 == 0) XREG(PREG->u.oxx.xl) = (CELL)S_SREG; else #endif XREG(PREG->u.oxx.xl) = d0; PREG = NEXTOP(PREG, oxx); #if SBA if (d1 == 0) *pt0 = (CELL)(S_SREG+1); else #endif *pt0 = d1; ENDD(d0); ENDD(d1); ENDP(pt0); ENDCACHE_S(); ALWAYS_GONext(); ENDBOp(); ALWAYS_END_PREFETCH(); Op(unify_l_x_var2_write, oxx); CACHE_S(); READ_IN_S(); BEGP(pt0); pt0 = &XREG(PREG->u.oxx.xr); XREG(PREG->u.oxx.xl) = (CELL) S_SREG; RESET_VARIABLE(S_SREG); S_SREG++; *pt0 = (CELL) S_SREG; PREG = NEXTOP(PREG, oxx); RESET_VARIABLE(S_SREG); ENDP(pt0); ENDCACHE_S(); GONext(); ENDOp(); Op(unify_y_var, oy); BEGD(d0); d0 = *SREG++; #if defined(SBA) #ifdef FROZEN_STACKS if (d0 == 0) { Bind_Local(YREG+PREG->u.oy.y,(CELL)(SREG-1)); } else { Bind_Local(YREG+PREG->u.oy.y,d0); } #else if (d0 == 0) { YREG[PREG->u.oy.y] = (CELL)(SREG-1); } else YREG[PREG->u.oy.y] = d0; #endif /* FROZEN_STACKS */ #else YREG[PREG->u.oy.y] = d0; #endif /* SBA */ PREG = NEXTOP(PREG, oy); GONext(); ENDD(d0); ENDOp(); OpW(unify_y_var_write, oy); CACHE_S(); READ_IN_S(); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.oy.y,(CELL) S_SREG); #else YREG[PREG->u.oy.y] = (CELL) S_SREG; #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, oy); RESET_VARIABLE(S_SREG); WRITEBACK_S(S_SREG+1); ENDCACHE_S(); GONextW(); ENDOpW(); Op(unify_l_y_var, oy); BEGD(d0); d0 = SREG[0]; #ifdef SBA #ifdef FROZEN_STACKS if (d0 == 0) { Bind_Local(YREG+PREG->u.oy.y,(CELL)SREG); } else { Bind_Local(YREG+PREG->u.oy.y,d0); } #else if (d0 == 0) { YREG[PREG->u.oy.y] = (CELL)SREG; } else { YREG[PREG->u.oy.y] = d0; } #endif /* FROZEN_STACKS */ #else YREG[PREG->u.oy.y] = d0; #endif /* SBA */ PREG = NEXTOP(PREG, oy); GONext(); ENDD(d0); ENDOp(); Op(unify_l_y_var_write, oy); CACHE_S(); READ_IN_S(); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.oy.y,(CELL) S_SREG); #else YREG[PREG->u.oy.y] = (CELL) S_SREG; #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, oy); RESET_VARIABLE(S_SREG); ENDCACHE_S(); GONext(); ENDOp(); OpW(unify_x_val_write, ox); /* we are in write mode */ *SREG++ = XREG(PREG->u.ox.x); PREG = NEXTOP(PREG, ox); GONextW(); ENDOpW(); /* We assume the value in X is pointing to an object in the * global stack */ Op(unify_x_val, ox); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, uvalx_unk); uvalx_nonvar: /* first argument is bound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, uvalx_nonvar_unk); uvalx_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, ox); SREG++; UnifyBound(d0, d1); /* deref second argument */ /* pt0 is in the structure and pt1 the register */ BEGP(pt1); deref_body(d1, pt1, uvalx_nonvar_unk, uvalx_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, ox); SREG++; BIND(pt1, d0, bind_uvalx_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_uvalx_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, uvalx_unk, uvalx_nonvar); /* first argument is unbound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, uvalx_var_unk); uvalx_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, ox); SREG++; BIND_GLOBAL(pt0, d1, bind_uvalx_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_uvalx_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, uvalx_var_unk, uvalx_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, ox); SREG++; UnifyGlobalRegCells(pt0, pt1, uc13, uc14); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc13: #endif GONext(); #ifdef COROUTINING uc14: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(unify_l_x_val_write, ox); /* we are in write mode */ SREG[0] = XREG(PREG->u.ox.x); PREG = NEXTOP(PREG, ox); GONext(); ENDOp(); /* We assume the value in X is pointing to an object in the * global stack */ Op(unify_l_x_val, ox); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ulvalx_unk); ulvalx_nonvar: /* first argument is bound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, ulvalx_nonvar_unk); ulvalx_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, ox); UnifyBound(d0, d1); BEGP(pt1); /* deref second argument */ deref_body(d1, pt1, ulvalx_nonvar_unk, ulvalx_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, ox); BIND(pt1, d0, bind_ulvalx_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_ulvalx_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, ulvalx_unk, ulvalx_nonvar); /* first argument is unbound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, ulvalx_var_unk); ulvalx_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, ox); BIND_GLOBAL(pt0, d1, bind_ulvalx_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulvalx_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, ulvalx_var_unk, ulvalx_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, ox); UnifyGlobalRegCells(pt0, pt1, uc15, uc16); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc15: #endif GONext(); #ifdef COROUTINING uc16: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); OpW(unify_y_val_write, oy); /* we are in write mode */ BEGD(d0); d0 = YREG[PREG->u.oy.y]; #if SBA if (d0 == 0) /* free variable */ *SREG++ = (CELL)(YREG+PREG->u.oy.y); else #endif *SREG++ = d0; ENDD(d0); PREG = NEXTOP(PREG, oy); GONextW(); ENDOpW(); /* We assume the value in X is pointing to an object in the * global stack */ Op(unify_y_val, oy); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, uvaly_unk); uvaly_nonvar: /* first argument is bound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, uvaly_nonvar_unk); uvaly_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, oy); SREG++; UnifyBound(d0, d1); /* deref second argument */ derefa_body(d1, pt1, uvaly_nonvar_unk, uvaly_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, oy); SREG++; BIND(pt1, d0, bind_uvaly_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_uvaly_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, uvaly_unk, uvaly_nonvar); /* first argument is unbound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, uvaly_var_unk); uvaly_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, oy); SREG++; BIND_GLOBAL(pt0, d1, bind_uvaly_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_uvaly_var_nonvar: #endif GONext(); derefa_body(d1, pt1, uvaly_var_unk, uvaly_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, oy); SREG++; UnifyGlobalRegCells(pt0, pt1, uc17, uc18); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc17: #endif GONext(); #ifdef COROUTINING uc18: DO_TRAIL(pt1, (CELL)pt1); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(unify_l_y_val_write, oy); /* we are in write mode */ BEGD(d0); d0 = YREG[PREG->u.oy.y]; #if SBA if (d0 == 0) /* new variable */ SREG[0] = (CELL)(YREG+PREG->u.oy.y); else #endif SREG[0] = d0; ENDD(d0); PREG = NEXTOP(PREG, oy); GONext(); ENDOp(); /* We assume the value in X is pointing to an object in the * global stack */ Op(unify_l_y_val, oy); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ulvaly_unk); ulvaly_nonvar: /* first argument is bound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, ulvaly_nonvar_unk); ulvaly_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, oy); UnifyBound(d0, d1); /* deref second argument */ derefa_body(d1, pt1, ulvaly_nonvar_unk, ulvaly_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, oy); BIND(pt1, d0, bind_ulvaly_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_ulvaly_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, ulvaly_unk, ulvaly_nonvar); /* first argument is unbound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, ulvaly_var_unk); ulvaly_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, oy); BIND_GLOBAL(pt0, d1, bind_ulvaly_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulvaly_var_nonvar: #endif GONext(); /* Here we are in trouble: we have a clash between pt1 and * SREG. We address this by storing SREG in d0 for the duration. */ derefa_body(d1, pt1, ulvaly_var_unk, ulvaly_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, oy); UnifyGlobalRegCells(pt0, pt1, uc19, uc20); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc19: #endif GONext(); #ifdef COROUTINING uc20: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); OpW(unify_x_loc_write, ox); /* we are in write mode */ BEGD(d0); d0 = XREG(PREG->u.ox.x); deref_head(d0, unify_x_loc_unk); unify_x_loc_nonvar: *SREG++ = d0; PREG = NEXTOP(PREG, ox); GONextW(); BEGP(pt0); deref_body(d0, pt0, unify_x_loc_unk, unify_x_loc_nonvar); /* move ahead in the instructions */ PREG = NEXTOP(PREG, ox); /* d0 is a variable, check whether we need to globalise it */ if (pt0 < H) { /* variable is global */ *SREG++ = Unsigned(pt0); GONextW(); } else { /* bind our variable to the structure */ CACHE_S(); READ_IN_S(); Bind_Local(pt0, Unsigned(S_SREG)); RESET_VARIABLE(S_SREG); WRITEBACK_S(S_SREG+1); ENDCACHE_S(); GONextW(); } ENDP(pt0); ENDD(d0); ENDOpW(); /* In the next instructions, we do not know anything about * what is in X */ Op(unify_x_loc, ox); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, uvalx_loc_unk); uvalx_loc_nonvar: /* first argument is bound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, uvalx_loc_nonvar_unk); uvalx_loc_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, ox); SREG++; UnifyBound(d0, d1); BEGP(pt1); /* deref second argument */ deref_body(d1, pt1, uvalx_loc_nonvar_unk, uvalx_loc_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, ox); SREG++; BIND(pt1, d0, bind_uvalx_loc_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_uvalx_loc_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, uvalx_loc_unk, uvalx_loc_nonvar); /* first argument is unbound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, uvalx_loc_var_unk); uvalx_loc_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, ox); SREG++; BIND_GLOBAL(pt0, d1, bind_uvalx_loc_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_uvalx_loc_var_nonvar: #endif GONext(); /* Here we are in trouble: we have a clash between pt1 and * SREG. We address this by storing SREG in d0 for the duration. */ BEGP(pt1); deref_body(d1, pt1, uvalx_loc_var_unk, uvalx_loc_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, ox); SREG++; UnifyGlobalRegCells(pt0, pt1, uc21, uc22); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc21: #endif GONext(); #ifdef COROUTINING uc22: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(unify_l_x_loc_write, ox); /* we are in write mode */ BEGD(d0); d0 = XREG(PREG->u.ox.x); deref_head(d0, ulnify_x_loc_unk); ulnify_x_loc_nonvar: SREG[0] = d0; PREG = NEXTOP(PREG, ox); GONext(); BEGP(pt0); deref_body(d0, pt0, ulnify_x_loc_unk, ulnify_x_loc_nonvar); /* d0 is a variable, check whether we need to globalise it */ PREG = NEXTOP(PREG, ox); if (pt0 < H) { /* variable is global */ SREG[0] = Unsigned(pt0); GONext(); } else { /* create a new Heap variable and bind our variable to it */ Bind_Local(pt0, Unsigned(SREG)); RESET_VARIABLE(SREG); GONext(); } ENDP(pt0); ENDD(d0); ENDOpW(); /* In the next instructions, we do not know anything about * what is in X */ Op(unify_l_x_loc, ox); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ulvalx_loc_unk); ulvalx_loc_nonvar: /* first argument is bound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, ulvalx_loc_nonvar_unk); ulvalx_loc_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, ox); UnifyBound(d0, d1); /* deref second argument */ deref_body(d1, pt0, ulvalx_loc_nonvar_unk, ulvalx_loc_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, ox); BIND(pt0, d0, bind_ulvalx_loc_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulvalx_loc_nonvar_var: #endif GONext(); /* first argument may be unbound */ derefa_body(d0, pt0, ulvalx_loc_unk, ulvalx_loc_nonvar); /* first argument is unbound */ d1 = XREG(PREG->u.ox.x); deref_head(d1, ulvalx_loc_var_unk); ulvalx_loc_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, ox); BIND_GLOBAL(pt0, d1, bind_ulvalx_loc_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulvalx_loc_var_nonvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, ulvalx_loc_var_unk, ulvalx_loc_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, ox); UnifyGlobalRegCells(pt0, pt1, uc23, uc24); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc23: #endif GONext(); #ifdef COROUTINING uc24: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); OpW(unify_y_loc_write, oy); /* we are in write mode */ BEGD(d0); BEGP(pt0); pt0 = YREG+PREG->u.oy.y; d0 = *pt0; deref_head(d0, unify_y_loc_unk); unify_y_loc_nonvar: *SREG++ = d0; PREG = NEXTOP(PREG, oy); GONextW(); derefa_body(d0, pt0, unify_y_loc_unk, unify_y_loc_nonvar); /* d0 is a variable, check whether we need to globalise it */ PREG = NEXTOP(PREG, oy); if (pt0 < H) { /* variable is global */ *SREG++ = Unsigned(pt0); GONextW(); } else { /* create a new Heap variable and bind our variable to it */ CACHE_S(); READ_IN_S(); Bind_Local(pt0, Unsigned(S_SREG)); RESET_VARIABLE(S_SREG); WRITEBACK_S(S_SREG+1); ENDCACHE_S(); GONextW(); } ENDP(pt0); ENDD(d0); ENDOpW(); Op(unify_y_loc, oy); /* we are in read mode */ BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, uvaly_loc_unk); uvaly_loc_nonvar: /* structure is bound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, uvaly_loc_nonvar_unk); uvaly_loc_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, oy); SREG++; UnifyBound(d0, d1); /* deref second argument */ derefa_body(d1, pt1, uvaly_loc_nonvar_unk, uvaly_loc_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, oy); SREG++; BIND(pt1, d0, bind_uvaly_loc_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_uvaly_loc_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, uvaly_loc_unk, uvaly_loc_nonvar); /* first argument is unbound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, uvaly_loc_var_unk); uvaly_loc_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, oy); SREG++; BIND_GLOBAL(pt0, d1, bind_uvaly_loc_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_uvaly_loc_var_nonvar: #endif GONext(); /* Here we are in trouble: we have a clash between pt1 and * SREG. We address this by storing SREG in d0 for the duration. */ derefa_body(d1, pt1, uvaly_loc_var_unk, uvaly_loc_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, oy); SREG++; UnifyGlobalRegCells(pt0, pt1, uc25, uc26); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc25: #endif GONext(); #ifdef COROUTINING uc26: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(unify_l_y_loc_write, oy); /* we are in write mode */ BEGD(d0); BEGP(pt0); pt0 = YREG+PREG->u.oy.y; d0 = *pt0; deref_head(d0, ulunify_y_loc_unk); ulunify_y_loc_nonvar: SREG[0] = d0; PREG = NEXTOP(PREG, oy); GONext(); derefa_body(d0, pt0, ulunify_y_loc_unk, ulunify_y_loc_nonvar); /* d0 is a variable, check whether we need to globalise it */ PREG = NEXTOP(PREG, oy); if (pt0 < H) { /* variable is global */ SREG[0] = Unsigned(pt0); GONext(); } else { /* create a new Heap variable and bind our variable to it */ CACHE_S(); READ_IN_S(); Bind_Local(pt0, Unsigned(S_SREG)); RESET_VARIABLE(S_SREG); ENDCACHE_S(); GONext(); } ENDP(pt0); ENDD(d0); ENDOp(); Op(unify_l_y_loc, oy); /* else we are in read mode */ BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ulvaly_loc_unk); ulvaly_loc_nonvar: /* structure is bound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, ulvaly_loc_nonvar_unk); ulvaly_loc_nonvar_nonvar: /* both arguments are bound */ /* we may have to bind structures */ PREG = NEXTOP(PREG, oy); UnifyBound(d0, d1); /* deref second argument */ derefa_body(d1, pt1, ulvaly_loc_nonvar_unk, ulvaly_loc_nonvar_nonvar); /* first argument bound, second unbound */ PREG = NEXTOP(PREG, oy); BIND(pt1, d0, bind_ulvaly_loc_nonvar_var); #ifdef COROUTINING DO_TRAIL(pt1, d0); if (pt1 < H0) Yap_WakeUp(pt1); bind_ulvaly_loc_nonvar_var: #endif GONext(); ENDP(pt1); /* first argument may be unbound */ derefa_body(d0, pt0, ulvaly_loc_unk, ulvaly_loc_nonvar); /* first argument is unbound */ BEGP(pt1); pt1 = YREG+PREG->u.oy.y; d1 = *pt1; deref_head(d1, ulvaly_loc_var_unk); ulvaly_loc_var_nonvar: /* first unbound, second bound */ PREG = NEXTOP(PREG, oy); BIND_GLOBAL(pt0, d1, bind_ulvaly_loc_var_nonvar); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulvaly_loc_var_nonvar: #endif GONext(); /* Here we are in trouble: we have a clash between pt1 and * SREG. We address this by storing SREG in d0 for the duration. */ derefa_body(d1, pt1, ulvaly_loc_var_unk, ulvaly_loc_var_nonvar); /* both arguments are unbound */ PREG = NEXTOP(PREG, oy); UnifyGlobalRegCells(pt0, pt1, uc27, uc28); #ifdef COROUTINING DO_TRAIL(pt0, (CELL)pt1); if (pt0 < H0) Yap_WakeUp(pt0); uc27: #endif GONext(); #ifdef COROUTINING uc28: DO_TRAIL(pt1, (CELL)pt0); if (pt1 < H0) Yap_WakeUp(pt1); GONext(); #endif ENDP(pt1); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); OpW(unify_void_write, o); CACHE_S(); READ_IN_S(); PREG = NEXTOP(PREG, o); RESET_VARIABLE(S_SREG); WRITEBACK_S(S_SREG+1); ENDCACHE_S(); GONextW(); ENDOpW(); Op(unify_void, o); SREG++; PREG = NEXTOP(PREG, o); GONext(); ENDOp(); Op(unify_l_void_write, o); PREG = NEXTOP(PREG, o); RESET_VARIABLE(SREG); GONext(); ENDOp(); Op(unify_l_void, o); PREG = NEXTOP(PREG, o); GONext(); ENDOp(); OpW(unify_n_voids_write, os); BEGD(d0); CACHE_S(); d0 = PREG->u.os.s; READ_IN_S(); PREG = NEXTOP(PREG, os); for (; d0 > 0; d0--) { RESET_VARIABLE(S_SREG); S_SREG++; } WRITEBACK_S(S_SREG); ENDCACHE_S(); ENDD(d0); GONextW(); ENDOpW(); Op(unify_n_voids, os); SREG += PREG->u.os.s; PREG = NEXTOP(PREG, os); GONext(); ENDOp(); Op(unify_l_n_voids_write, os); BEGD(d0); d0 = PREG->u.os.s; PREG = NEXTOP(PREG, os); CACHE_S(); READ_IN_S(); for (; d0 > 0; d0--) { RESET_VARIABLE(S_SREG); S_SREG++; } ENDCACHE_S(); ENDD(d0); GONext(); ENDOp(); Op(unify_l_n_voids, os); PREG = NEXTOP(PREG, os); GONext(); ENDOp(); OpW(unify_atom_write, oc); * SREG++ = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); GONextW(); ENDOpW(); Op(unify_atom, oc); BEGD(d0); BEGP(pt0); pt0 = SREG++; d0 = *pt0; deref_head(d0, uatom_unk); uatom_nonvar: if (d0 != PREG->u.oc.c) { FAIL(); } PREG = NEXTOP(PREG, oc); GONext(); derefa_body(d0, pt0, uatom_unk, uatom_nonvar); d0 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(pt0, d0, bind_uatom); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_uatom: #endif GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(unify_l_atom_write, oc); SREG[0] = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); GONext(); ENDOp(); Op(unify_l_atom, oc); BEGD(d0); BEGP(pt0); pt0 = SREG; d0 = *SREG; deref_head(d0, ulatom_unk); ulatom_nonvar: if (d0 != PREG->u.oc.c) { FAIL(); } PREG = NEXTOP(PREG, oc); GONext(); derefa_body(d0, pt0, ulatom_unk, ulatom_nonvar); d0 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(pt0, d0, bind_ulatom); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulatom: #endif GONext(); ENDP(pt0); ENDD(d0); ENDOp(); OpW(unify_n_atoms_write, osc); BEGD(d0); BEGD(d1); d0 = PREG->u.osc.s; d1 = PREG->u.osc.c; /* write N atoms */ CACHE_S(); READ_IN_S(); PREG = NEXTOP(PREG, osc); for (; d0 > 0; d0--) *S_SREG++ = d1; WRITEBACK_S(S_SREG); ENDCACHE_S(); ENDD(d1); ENDD(d0); GONextW(); ENDOpW(); Op(unify_n_atoms, osc); { register Int i = PREG->u.osc.s; /* not enough registers */ BEGD(d1); d1 = PREG->u.osc.c; for (; i > 0; i--) { BEGD(d0); BEGP(pt0); pt0 = SREG++; d0 = *pt0; deref_head(d0, uatom_n_var); uatom_n_nonvar: if (d0 != d1) { FAIL(); } continue; derefa_body(d0, pt0, uatom_n_var, uatom_n_nonvar); BIND_GLOBAL(pt0, d1, bind_unlatom); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_unlatom: continue; #endif ENDP(pt0); ENDD(d0); } ENDD(d1); } PREG = NEXTOP(PREG, osc); GONext(); ENDOp(); Op(unify_float, oc); BEGD(d0); BEGP(pt0); pt0 = SREG++; d0 = *pt0; deref_head(d0, ufloat_unk); ufloat_nonvar: if (!IsApplTerm(d0)) { FAIL(); } /* look inside term */ BEGP(pt0); pt0 = RepAppl(d0); BEGD(d0); d0 = *pt0; if (d0 != (CELL)FunctorDouble) { FAIL(); } ENDD(d0); BEGP(pt1); pt1 = RepAppl(PREG->u.oc.c); PREG = NEXTOP(PREG, oc); if ( pt1[1] != pt0[1] #if SIZEOF_DOUBLE == 2*SIZEOF_INT_P || pt1[2] != pt0[2] #endif ) FAIL(); ENDP(pt1); ENDP(pt0); GONext(); derefa_body(d0, pt0, ufloat_unk, ufloat_nonvar); BEGD(d1); d1 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(pt0, d1, bind_ufloat); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ufloat: #endif GONext(); ENDD(d1); ENDP(pt0); ENDD(d0); ENDOp(); Op(unify_l_float, oc); BEGD(d0); CACHE_S(); READ_IN_S(); d0 = *S_SREG; deref_head(d0, ulfloat_unk); ulfloat_nonvar: if (!IsApplTerm(d0)) { FAIL(); } BEGP(pt0); pt0 = RepAppl(d0); BEGD(d0); d0 = *pt0; if (d0 != (CELL)FunctorDouble) { FAIL(); } ENDD(d0); BEGP(pt1); pt1 = RepAppl(PREG->u.oc.c); PREG = NEXTOP(PREG, oc); if ( pt1[1] != pt0[1] #if SIZEOF_DOUBLE == 2*SIZEOF_INT_P || pt1[2] != pt0[2] #endif ) FAIL(); ENDP(pt1); ENDP(pt0); GONext(); derefa_body(d0, S_SREG, ulfloat_unk, ulfloat_nonvar); BEGD(d1); d1 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(S_SREG, d1, bind_ulfloat); #ifdef COROUTINING DO_TRAIL(S_SREG, d1); if (S_SREG < H0) Yap_WakeUp(S_SREG); bind_ulfloat: #endif GONext(); ENDD(d1); ENDCACHE_S(); ENDD(d0); ENDOp(); Op(unify_longint, oc); BEGD(d0); BEGP(pt0); pt0 = SREG++; d0 = *pt0; deref_head(d0, ulongint_unk); ulongint_nonvar: /* look inside term */ if (!IsApplTerm(d0)) { FAIL(); } BEGP(pt0); pt0 = RepAppl(d0); BEGD(d0); d0 = *pt0; if (d0 != (CELL)FunctorLongInt) { FAIL(); } ENDD(d0); BEGP(pt1); pt1 = RepAppl(PREG->u.oc.c); PREG = NEXTOP(PREG, oc); if (pt1[1] != pt0[1]) FAIL(); ENDP(pt1); ENDP(pt0); GONext(); derefa_body(d0, pt0, ulongint_unk, ulongint_nonvar); BEGD(d1); d1 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(pt0, d1, bind_ulongint); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulongint: #endif GONext(); ENDD(d1); ENDP(pt0); ENDD(d0); ENDOp(); Op(unify_l_longint, oc); BEGD(d0); CACHE_S(); READ_IN_S(); d0 = *S_SREG; deref_head(d0, ullongint_unk); ullongint_nonvar: if (!IsApplTerm(d0)) { FAIL(); } BEGP(pt0); pt0 = RepAppl(d0); BEGD(d0); d0 = *pt0; if (d0 != (CELL)FunctorLongInt) { FAIL(); } ENDD(d0); BEGP(pt1); pt1 = RepAppl(PREG->u.oc.c); PREG = NEXTOP(PREG, oc); if (pt1[1] != pt0[1]) FAIL(); ENDP(pt1); ENDP(pt0); GONext(); derefa_body(d0, S_SREG, ullongint_unk, ullongint_nonvar); BEGD(d1); d1 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(S_SREG, d1, bind_ullongint); #ifdef COROUTINING DO_TRAIL(S_SREG, d1); if (S_SREG < H0) Yap_WakeUp(S_SREG); bind_ullongint: #endif GONext(); ENDD(d1); ENDCACHE_S(); ENDD(d0); ENDOp(); Op(unify_bigint, oc); BEGD(d0); BEGP(pt0); pt0 = SREG++; d0 = *pt0; deref_head(d0, ubigint_unk); ubigint_nonvar: /* look inside term */ if (!IsApplTerm(d0)) { FAIL(); } #ifdef USE_GMP BEGP(pt0); pt0 = RepAppl(d0); BEGD(d0); d0 = *pt0; if (d0 != (CELL)FunctorBigInt) #endif { FAIL(); } #ifdef USE_GMP ENDD(d0); if (mpz_cmp(Yap_BigIntOfTerm(d0),Yap_BigIntOfTerm(PREG->u.oc.c))) FAIL(); PREG = NEXTOP(PREG, oc); #endif #ifdef USE_GMP ENDP(pt0); #endif GONext(); derefa_body(d0, pt0, ubigint_unk, ubigint_nonvar); BEGD(d1); d1 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(pt0, d1, bind_ubigint); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ubigint: #endif GONext(); ENDD(d1); ENDP(pt0); ENDD(d0); ENDOp(); Op(unify_l_bigint, oc); BEGD(d0); CACHE_S(); READ_IN_S(); d0 = *S_SREG; deref_head(d0, ulbigint_unk); ulbigint_nonvar: if (!IsApplTerm(d0)) { FAIL(); } #ifdef USE_GMP BEGP(pt0); pt0 = RepAppl(d0); BEGD(d0); d0 = *pt0; if (d0 != (CELL)FunctorBigInt) #endif { FAIL(); } #ifdef USE_GMP ENDD(d0); if (mpz_cmp(Yap_BigIntOfTerm(d0),Yap_BigIntOfTerm(PREG->u.oc.c))) FAIL(); PREG = NEXTOP(PREG, oc); #endif #ifdef USE_GMP ENDP(pt0); #endif GONext(); derefa_body(d0, S_SREG, ulbigint_unk, ulbigint_nonvar); BEGD(d1); d1 = PREG->u.oc.c; PREG = NEXTOP(PREG, oc); BIND_GLOBAL(S_SREG, d1, bind_ulbigint); #ifdef COROUTINING DO_TRAIL(S_SREG, d1); if (S_SREG < H0) Yap_WakeUp(S_SREG); bind_ulbigint: #endif GONext(); ENDD(d1); ENDCACHE_S(); ENDD(d0); ENDOp(); OpW(unify_list_write, o); PREG = NEXTOP(PREG, o); BEGD(d0); d0 = AbsPair(H); CACHE_S(); READ_IN_S(); SP -= 2; SP[0] = WRITE_MODE; SP[1] = Unsigned(S_SREG + 1); S_SREG[0] = d0; S_SREG = H; H = S_SREG + 2; WRITEBACK_S(S_SREG); ENDCACHE_S(); GONextW(); ENDD(d0); ENDOpW(); OpRW(unify_list, o); *--SP = Unsigned(SREG + 1); *--SP = READ_MODE; BEGD(d0); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ulist_unk); ulist_nonvar: if (!IsPairTerm(d0)) { FAIL(); } /* we continue in read mode */ START_PREFETCH(o); SREG = RepPair(d0); PREG = NEXTOP(PREG, o); GONext(); END_PREFETCH(); derefa_body(d0, pt0, ulist_unk, ulist_nonvar); /* we enter write mode */ START_PREFETCH_W(o); CACHE_S(); READ_IN_S(); S_SREG = H; PREG = NEXTOP(PREG, o); H = S_SREG + 2; d0 = AbsPair(S_SREG); WRITEBACK_S(S_SREG); ENDCACHE_S(); BIND_GLOBAL(pt0, d0, bind_ulist_var); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulist_var: #endif GONextW(); END_PREFETCH_W(); ENDP(pt0); ENDD(d0); ENDOpRW(); OpW(unify_l_list_write, o); /* we continue in write mode */ BEGD(d0); d0 = AbsPair(H); PREG = NEXTOP(PREG, o); CACHE_S(); READ_IN_S(); S_SREG[0] = d0; S_SREG = H; H = S_SREG + 2; WRITEBACK_S(S_SREG); ENDCACHE_S(); GONextW(); ENDD(d0); ENDOpW(); OpRW(unify_l_list, o); BEGD(d0); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ullist_unk); ullist_nonvar: START_PREFETCH(o); if (!IsPairTerm(d0)) { FAIL(); } /* we continue in read mode */ PREG = NEXTOP(PREG, o); SREG = RepPair(d0); GONext(); END_PREFETCH(); derefa_body(d0, pt0, ullist_unk, ullist_nonvar); /* we enter write mode */ START_PREFETCH_W(o); PREG = NEXTOP(PREG, o); CACHE_S(); READ_IN_S(); S_SREG = H; H = S_SREG + 2; d0 = AbsPair(S_SREG); WRITEBACK_S(S_SREG); ENDCACHE_S(); BIND_GLOBAL(pt0, d0, bind_ullist_var); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_ullist_var: #endif GONextW(); END_PREFETCH_W(); ENDP(pt0); ENDD(d0); ENDOpRW(); OpW(unify_struct_write, of); CACHE_S(); READ_IN_S(); *--SP = Unsigned(S_SREG + 1); *--SP = WRITE_MODE; /* we continue in write mode */ BEGD(d0); d0 = AbsAppl(H); S_SREG[0] = d0; S_SREG = H; d0 = (CELL) (PREG->u.of.f); *S_SREG++ = d0; H = S_SREG + PREG->u.of.a; PREG = NEXTOP(PREG, of); WRITEBACK_S(S_SREG); ENDCACHE_S(); ENDD(d0); GONextW(); ENDOpW(); OpRW(unify_struct, of); *--SP = Unsigned(SREG + 1); *--SP = READ_MODE; BEGD(d0); BEGP(pt0); pt0 = SREG; d0 = *pt0; START_PREFETCH(of); deref_head(d0, ustruct_unk); ustruct_nonvar: /* we are in read mode */ if (!IsApplTerm(d0)) { FAIL(); } CACHE_S(); READ_IN_S(); /* we continue in read mode */ S_SREG = RepAppl(d0); /* just check functor */ d0 = (CELL) (PREG->u.of.f); if (*S_SREG != d0) { FAIL(); } PREG = NEXTOP(PREG, of); WRITEBACK_S(S_SREG+1); ENDCACHE_S(); GONext(); END_PREFETCH(); derefa_body(d0, pt0, ustruct_unk, ustruct_nonvar); /* Enter Write mode */ START_PREFETCH_W(of); /* set d1 to be the new structure we are going to create */ BEGD(d1); d1 = AbsAppl(H); /* we know the variable must be in the heap */ BIND_GLOBAL(pt0, d1, bind_ustruct); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ustruct: #endif /* now, set pt0 to point to the heap where we are going to * build our term */ pt0 = H; ENDD(d1); /* first, put the functor */ d0 = (CELL) (PREG->u.of.f); *pt0++ = d0; H = pt0 + PREG->u.of.a; PREG = NEXTOP(PREG, of); /* set SREG */ SREG = pt0; /* update H */ GONextW(); END_PREFETCH_W(); ENDP(pt0); ENDD(d0); ENDOpRW(); OpW(unify_l_struc_write, of); BEGD(d0); d0 = AbsAppl(H); CACHE_S(); READ_IN_S(); S_SREG[0] = d0; S_SREG = H; d0 = (CELL) (PREG->u.of.f); *S_SREG++ = d0; H = S_SREG + PREG->u.of.a; PREG = NEXTOP(PREG, of); WRITEBACK_S(S_SREG); ENDCACHE_S(); ENDD(d0); GONextW(); ENDOpW(); OpRW(unify_l_struc, of); BEGD(d0); BEGP(pt0); pt0 = SREG; d0 = *pt0; deref_head(d0, ulstruct_unk); ulstruct_nonvar: /* we are in read mode */ START_PREFETCH(of); if (!IsApplTerm(d0)) { FAIL(); } /* we continue in read mode */ SREG = RepAppl(d0); /* just check functor */ d0 = (CELL) (PREG->u.of.f); if (*SREG++ != d0) { FAIL(); } PREG = NEXTOP(PREG, of); GONext(); END_PREFETCH(); derefa_body(d0, pt0, ulstruct_unk, ulstruct_nonvar); /* Enter Write mode */ /* set d1 to be the new structure we are going to create */ START_PREFETCH_W(of); BEGD(d1); d1 = AbsAppl(H); /* we know the variable must be in the heap */ BIND_GLOBAL(pt0, d1, bind_ulstruct); #ifdef COROUTINING DO_TRAIL(pt0, d1); if (pt0 < H0) Yap_WakeUp(pt0); bind_ulstruct: #endif /* now, set pt0 to point to the heap where we are going to * build our term */ pt0 = H; ENDD(d1); /* first, put the functor */ d0 = (CELL) (PREG->u.of.f); *pt0++ = d0; H = pt0 + PREG->u.of.a; PREG = NEXTOP(PREG, of); /* set SREG */ SREG = pt0; /* update H */ GONextW(); END_PREFETCH_W(); ENDP(pt0); ENDD(d0); ENDOpRW(); /************************************************************************\ * Put Instructions * \************************************************************************/ Op(put_x_var, xx); BEGP(pt0); pt0 = H; XREG(PREG->u.xx.xl) = Unsigned(pt0); H = pt0 + 1; XREG(PREG->u.xx.xr) = Unsigned(pt0); PREG = NEXTOP(PREG, xx); RESET_VARIABLE(pt0); ENDP(pt0); GONext(); ENDOp(); Op(put_y_var, yx); BEGP(pt0); pt0 = YREG + PREG->u.yx.y; XREG(PREG->u.yx.x) = (CELL) pt0; PREG = NEXTOP(PREG, yx); #if defined(SBA) && defined(FROZEN_STACKS) /* We must initialise a shared variable to point to the SBA */ if (Unsigned((Int)(pt0)-(Int)(H_FZ)) > Unsigned((Int)(B_FZ)-(Int)(H_FZ))) { *pt0 = (CELL)STACK_TO_SBA(pt0); } else #endif /* SBA && FROZEN_STACKS */ RESET_VARIABLE(pt0); ENDP(pt0); GONext(); ENDOp(); Op(put_x_val, xx); BEGD(d0); d0 = XREG(PREG->u.xx.xl); XREG(PREG->u.xx.xr) = d0; ENDD(d0); PREG = NEXTOP(PREG, xx); GONext(); ENDOp(); Op(put_xx_val, xxxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxxx.xl1); d1 = XREG(PREG->u.xxxx.xl2); XREG(PREG->u.xxxx.xr1) = d0; XREG(PREG->u.xxxx.xr2) = d1; ENDD(d1); ENDD(d0); PREG = NEXTOP(PREG, xxxx); GONext(); ENDOp(); Op(put_y_val, yx); BEGD(d0); d0 = YREG[PREG->u.yx.y]; #if SBA if (d0 == 0) /* new variable */ XREG(PREG->u.yx.x) = (CELL)(YREG+PREG->u.yx.y); else #endif XREG(PREG->u.yx.x) = d0; ENDD(d0); PREG = NEXTOP(PREG, yx); GONext(); ENDOp(); Op(put_unsafe, yx); BEGD(d0); BEGP(pt0); pt0 = YREG+PREG->u.yx.y; d0 = *pt0; deref_head(d0, punsafe_unk); punsafe_nonvar: XREG(PREG->u.yx.x) = d0; PREG = NEXTOP(PREG, yx); GONext(); derefa_body(d0, pt0, punsafe_unk, punsafe_nonvar); /* d0 is a variable, check whether we need to globalise it */ if (pt0 <= H || pt0 >= YREG) { /* variable is safe */ XREG(PREG->u.yx.x) = Unsigned(pt0); PREG = NEXTOP(PREG, yx); GONext(); } else { /* create a new Heap variable and bind our variable to it */ Bind_Local(pt0, Unsigned(H)); XREG(PREG->u.yx.x) = (CELL) H; RESET_VARIABLE(H); H++; PREG = NEXTOP(PREG, yx); GONext(); } ENDP(pt0); ENDD(d0); ENDOp(); Op(put_atom, xc); BEGD(d0); d0 = PREG->u.xc.c; XREG(PREG->u.xc.x) = d0; PREG = NEXTOP(PREG, xc); GONext(); ENDD(d0); ENDOp(); Op(put_list, x); CACHE_S(); READ_IN_S(); S_SREG = H; H += 2; BEGD(d0); d0 = AbsPair(S_SREG); XREG(PREG->u.x.x) = d0; PREG = NEXTOP(PREG, x); ENDD(d0); WRITEBACK_S(S_SREG); ENDCACHE_S(); GONext(); ENDOp(); Op(put_struct, xf); BEGD(d0); d0 = AbsAppl(H); XREG(PREG->u.xf.x) = d0; d0 = (CELL) (PREG->u.xf.f); *H++ = d0; SREG = H; H += PREG->u.xf.a; ENDD(d0); PREG = NEXTOP(PREG, xf); GONext(); ENDOp(); /************************************************************************\ * Write Instructions * \************************************************************************/ Op(write_x_var, x); XREG(PREG->u.x.x) = Unsigned(SREG); PREG = NEXTOP(PREG, x); RESET_VARIABLE(SREG); SREG++; GONext(); ENDOp(); Op(write_void, e); PREG = NEXTOP(PREG, e); RESET_VARIABLE(SREG); SREG++; GONext(); ENDOp(); Op(write_n_voids, s); BEGD(d0); d0 = PREG->u.s.s; PREG = NEXTOP(PREG, s); for (; d0 > 0; d0--) { RESET_VARIABLE(SREG); SREG++; } ENDD(d0); GONext(); ENDOp(); Op(write_y_var, y); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.y.y,Unsigned(SREG)); #else YREG[PREG->u.y.y] = Unsigned(SREG); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, y); RESET_VARIABLE(SREG); SREG++; GONext(); ENDOp(); Op(write_x_val, x); BEGD(d0); d0 = XREG(PREG->u.x.x); *SREG++ = d0; ENDD(d0); PREG = NEXTOP(PREG, x); GONext(); ENDOp(); Op(write_x_loc, x); BEGD(d0); d0 = XREG(PREG->u.x.x); PREG = NEXTOP(PREG, x); deref_head(d0, w_x_unk); w_x_bound: *SREG++ = d0; GONext(); BEGP(pt0); deref_body(d0, pt0, w_x_unk, w_x_bound); #if defined(SBA) && defined(FROZEN_STACKS) if (pt0 > H && pt0<(CELL *)B_FZ) { #else if (pt0 > H) { #endif /* SBA && FROZEN_STACKS */ /* local variable: let us bind it to the list */ #ifdef FROZEN_STACKS /* TRAIL */ Bind_Local(pt0, Unsigned(SREG)); #else TRAIL_LOCAL(pt0, Unsigned(SREG)); *pt0 = Unsigned(SREG); #endif /* FROZEN_STACKS */ RESET_VARIABLE(SREG); SREG++; GONext(); } else { *SREG++ = Unsigned(pt0); GONext(); } ENDP(pt0); ENDD(d0); ENDOp(); Op(write_y_val, y); BEGD(d0); d0 = YREG[PREG->u.y.y]; #if SBA if (d0 == 0) /* new variable */ *SREG++ = (CELL)(YREG+PREG->u.y.y); else #endif *SREG++ = d0; ENDD(d0); PREG = NEXTOP(PREG, y); GONext(); ENDOp(); Op(write_y_loc, y); BEGD(d0); BEGP(pt0); pt0 = YREG+PREG->u.y.y; d0 = *pt0; deref_head(d0, w_y_unk); w_y_bound: PREG = NEXTOP(PREG, y); *SREG++ = d0; GONext(); derefa_body(d0, pt0, w_y_unk, w_y_bound); #if defined(SBA) && defined(FROZEN_STACKS) if (pt0 > H && pt0<(CELL *)B_FZ) { #else if (pt0 > H) { #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, y); /* local variable: let us bind it to the list */ #ifdef FROZEN_STACKS Bind_Local(pt0, Unsigned(SREG)); #else *pt0 = Unsigned(SREG); TRAIL_LOCAL(pt0, Unsigned(SREG)); #endif /* FROZEN_STACKS */ RESET_VARIABLE(SREG); SREG++; GONext(); } else { PREG = NEXTOP(PREG, y); *SREG++ = Unsigned(pt0); GONext(); } ENDP(pt0); ENDD(d0); ENDOp(); Op(write_atom, c); BEGD(d0); d0 = PREG->u.c.c; *SREG++ = d0; ENDD(d0); PREG = NEXTOP(PREG, c); GONext(); ENDOp(); Op(write_n_atoms, sc); BEGD(d0); BEGD(d1); d0 = PREG->u.sc.s; d1 = PREG->u.sc.c; for (; d0 > 0; d0--) *SREG++ = d1; ENDD(d1); ENDD(d0); PREG = NEXTOP(PREG, sc); GONext(); ENDOp(); Op(write_list, e); BEGD(d0); d0 = AbsPair(H); *SREG++ = d0; /* I will not actually store the mode in the stack */ SP[-1] = Unsigned(SREG); SP[-2] = 1; /* Put instructions follow the main stream */ SP -= 2; SREG = H; H += 2; ENDD(d0); PREG = NEXTOP(PREG, e); GONext(); ENDOp(); Op(write_l_list, e); ALWAYS_START_PREFETCH(e); PREG = NEXTOP(PREG, e); BEGD(d0); CACHE_S(); READ_IN_S(); d0 = AbsPair(H); *S_SREG = d0; WRITEBACK_S(H); H += 2; ENDCACHE_S(); ENDD(d0); ALWAYS_END_PREFETCH(); GONext(); ENDOp(); Op(write_struct, f); BEGD(d0); d0 = AbsAppl(H); *SREG++ = d0; SP[-1] = Unsigned(SREG); SP[-2] = 1; /* Put instructions follow the main stream */ SP -= 2; d0 = (CELL) (PREG->u.f.f); *H++ = d0; ENDD(d0); BEGD(d0); d0 = PREG->u.f.a; PREG = NEXTOP(PREG, f); SREG = H; H += d0; ENDD(d0); GONext(); ENDOp(); Op(write_l_struc, f); BEGD(d0); d0 = AbsAppl(H); *SREG = d0; d0 = (CELL) (PREG->u.f.f); *H++ = d0; SREG = H; ENDD(d0); BEGD(d0); d0 = PREG->u.f.a; PREG = NEXTOP(PREG, f); H += d0; ENDD(d0); GONext(); ENDOp(); /************************************************************************\ * Save last unified struct or list * \************************************************************************/ /* vitor: I think I should kill these two instructions, by expanding the * othe instructions. */ OpW(save_pair_x_write, ox); XREG(PREG->u.ox.x) = AbsPair(SREG); PREG = NEXTOP(PREG, ox); GONextW(); ENDOpW(); Op(save_pair_x, ox); XREG(PREG->u.ox.x) = AbsPair(SREG); PREG = NEXTOP(PREG, ox); GONext(); ENDOp(); OpW(save_pair_y_write, oy); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.oy.y,AbsPair(SREG)); #else YREG[PREG->u.oy.y] = AbsPair(SREG); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, oy); GONextW(); ENDOpW(); Op(save_pair_y, oy); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.oy.y,AbsPair(SREG)); #else YREG[PREG->u.oy.y] = AbsPair(SREG); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, oy); GONext(); ENDOp(); OpW(save_appl_x_write, ox); XREG(PREG->u.ox.x) = AbsAppl(SREG - 1); PREG = NEXTOP(PREG, ox); GONextW(); ENDOpW(); Op(save_appl_x, ox); XREG(PREG->u.ox.x) = AbsAppl(SREG - 1); PREG = NEXTOP(PREG, ox); GONext(); ENDOp(); OpW(save_appl_y_write, oy); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.oy.y,AbsAppl(SREG-1)); #else YREG[PREG->u.oy.y] = AbsAppl(SREG - 1); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, oy); GONextW(); ENDOpW(); Op(save_appl_y, oy); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(YREG+PREG->u.oy.y,AbsAppl(SREG-1)); #else YREG[PREG->u.oy.y] = AbsAppl(SREG - 1); #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, oy); GONext(); ENDOp(); /************************************************************************\ * Instructions for implemeting 'or;' * \************************************************************************/ BOp(jump, l); PREG = PREG->u.l.l; JMPNext(); ENDBOp(); /* This instruction is called when the previous goal was interrupted when waking up goals */ BOp(move_back, l); PREG = (yamop *)(((char *)PREG)-(Int)(NEXTOP((yamop *)NULL,sla))); JMPNext(); ENDBOp(); /* This instruction is called when the previous goal was interrupted when waking up goals */ BOp(skip, l); PREG = NEXTOP(PREG,l); JMPNext(); ENDBOp(); Op(either, sla); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { low_level_trace(try_or, (PredEntry *)PREG, NULL); } #endif #ifdef COROUTINING CACHE_Y_AS_ENV(YREG); check_stack(NoStackEither, H); ENDCACHE_Y_AS_ENV(); either_notest: #endif BEGD(d0); /* Try to preserve the environment */ d0 = PREG->u.sla.s; BEGCHO(pt1); pt1 = (choiceptr) ((char *) YREG + (yslot) d0); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (pt1 > top_b || pt1 < (choiceptr)H) pt1 = top_b; #else if (pt1 > top_b) pt1 = top_b; #endif /* SBA */ } #else if (pt1 > B) { pt1 = B; } #endif /* FROZEN_STACKS */ pt1 = (choiceptr)(((CELL *) pt1)-1); *(CELL **) pt1 = YREG; store_yaam_regs_for_either(PREG->u.sla.sla_u.l, PREG); SREG = (CELL *) (B = pt1); #ifdef YAPOR SCH_set_load(pt1); #endif /* YAPOR */ SET_BB(pt1); ENDCHO(pt1); /* skip the current instruction plus the next one */ PREG = NEXTOP(NEXTOP(PREG, sla),l); GONext(); ENDD(d0); ENDOp(); Op(or_else, sla); H = HBREG = PROTECT_FROZEN_H(B); ENV = B->cp_env; B->cp_cp = PREG; #ifdef DEPTH_LIMIT DEPTH = B->cp_depth; #endif /* DEPTH_LIMIT */ SET_BB(PROTECT_FROZEN_B(B)); #ifdef YAPOR if (SCH_top_shared_cp(B)) { SCH_new_alternative(PREG, PREG->u.sla.sla_u.l); } else #endif /* YAPOR */ B->cp_ap = PREG->u.sla.sla_u.l; PREG = NEXTOP(PREG, sla); YREG = (CELL *) B->cp_a1; GONext(); ENDOp(); #ifdef YAPOR Op(or_last, sla); #else Op(or_last, p); #endif /* YAPOR */ BEGCHO(pt0); pt0 = B; #ifdef YAPOR if (SCH_top_shared_cp(B)) { H = HBREG = PROTECT_FROZEN_H(pt0); YREG = (CELL *) pt0->cp_a1; ENV = pt0->cp_env; #ifdef DEPTH_LIMIT DEPTH = pt0->cp_depth; #endif /* DEPTH_LIMIT */ SCH_new_alternative(PREG, NULL); } else #endif /* YAPOR */ { B = pt0->cp_b; H = PROTECT_FROZEN_H(pt0); YREG = (CELL *) pt0->cp_a1; ENV = pt0->cp_env; #ifdef DEPTH_LIMIT DEPTH = pt0->cp_depth; #endif /* DEPTH_LIMIT */ HBREG = PROTECT_FROZEN_H(B); } #ifdef YAPOR PREG = NEXTOP(PREG, sla); #else PREG = NEXTOP(PREG, p); #endif /* YAPOR */ SET_BB(PROTECT_FROZEN_B(B)); GONext(); ENDCHO(pt0); ENDOp(); /************************************************************************\ * Pop operations * \************************************************************************/ OpRW(pop_n, s); /* write mode might have been called from read mode */ BEGD(d0); d0 = PREG->u.os.s; SP = (CELL *) (((char *) SP) + d0); ENDD(d0); BEGD(d0); d0 = SP[0]; if (d0) { START_PREFETCH(s); SREG = (CELL *) (SP[1]); SP += 2; PREG = NEXTOP(PREG, s); GONext(); END_PREFETCH(); } else { START_PREFETCH_W(s); SREG = (CELL *) (SP[1]); SP += 2; PREG = NEXTOP(PREG, s); GONextW(); END_PREFETCH_W(); } ENDD(d0); ENDOpRW(); OpRW(pop, e); BEGD(d0); d0 = SP[0]; SREG = (CELL *) (SP[1]); SP += 2; if (d0) { START_PREFETCH(e); PREG = NEXTOP(PREG, e); GONext(); END_PREFETCH(); } else { START_PREFETCH_W(e); PREG = NEXTOP(PREG, e); GONextW(); END_PREFETCH_W(); } ENDD(d0); ENDOpRW(); /************************************************************************\ * Call C predicates instructions * \************************************************************************/ BOp(call_cpred, sla); if (!(PREG->u.sla.sla_u.p->PredFlags & ( SafePredFlag|HiddenPredFlag))) { CACHE_Y_AS_ENV(YREG); check_stack(NoStackCall, H); ENDCACHE_Y_AS_ENV(); } #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (YREG > (CELL *) top_b || YREG < H) ASP = (CELL *)top_b; #else if (YREG > (CELL *) top_b) ASP = (CELL *)top_b; #endif /* SBA */ else ASP = (CELL *)(((char *)YREG) + PREG->u.sla.s); } #else if (YREG > (CELL *) B) { ASP = (CELL *) B; } else { ASP = (CELL *) (((char *) YREG) + PREG->u.sla.s); } /* for slots to work */ #endif /* FROZEN_STACKS */ #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,PREG->u.sla.sla_u.p,XREGS+1); #endif /* LOW_LEVEL_TRACE */ BEGD(d0); CPredicate f = PREG->u.sla.sla_u.p->cs.f_code; PREG = NEXTOP(PREG, sla); saveregs(); d0 = (f)(); setregs(); if (!d0) { FAIL(); } CACHE_A1(); ENDD(d0); JMPNext(); ENDBOp(); /* Like previous, the only difference is that we do not */ /* trust the C-function we are calling and hence we must */ /* guarantee that *all* machine registers are saved and */ /* restored */ BOp(call_usercpred, sla); CACHE_Y_AS_ENV(YREG); check_stack(NoStackCall, H); ENDCACHE_Y_AS_ENV(); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (YREG > (CELL *) top_b || YREG < H) ASP = (CELL *) top_b; #else if (YREG > (CELL *) top_b) ASP = (CELL *) top_b; #endif /* SBA */ else ASP = (CELL *)(((char *)YREG) + PREG->u.sla.s); } #else if (YREG > (CELL *) B) ASP = (CELL *) B; else { ASP = (CELL *) (((char *) YREG) + PREG->u.sla.s); } /* for slots to work */ Yap_StartSlots(); Yap_PrologMode = UserCCallMode; #endif /* FROZEN_STACKS */ { PredEntry *p = PREG->u.sla.sla_u.p; #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,p,XREGS+1); #endif /* LOW_LEVEL_TRACE */ PREG = NEXTOP(PREG, sla); saveregs(); save_machine_regs(); SREG = (CELL *) YAP_Execute(p, p->cs.f_code); EX = 0L; } restore_machine_regs(); setregs(); Yap_PrologMode = UserMode; if (!SREG) { FAIL(); } JMPNext(); ENDBOp(); BOp(call_c_wfail, sdl); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (YREG > (CELL *) top_b || YREG < H) ASP = (CELL *) top_b; #else if (YREG > (CELL *) top_b) ASP = (CELL *) top_b; #endif /* SBA */ else { BEGD(d0); d0 = PREG->u.sdl.s; ASP = ((CELL *)YREG) + d0; ENDD(d0); } } #else if (YREG > (CELL *) B) ASP = (CELL *) B; else { BEGD(d0); d0 = PREG->u.sdl.s; ASP = ((CELL *) YREG) + d0; ENDD(d0); } #endif /* FROZEN_STACKS */ { CPredicate f = PREG->u.sdl.p->cs.f_code; saveregs(); SREG = (CELL *)((f)()); setregs(); } if (!SREG) PREG = PREG->u.sdl.l; else PREG = NEXTOP(PREG, sdl); CACHE_A1(); JMPNext(); ENDBOp(); BOp(try_c, lds); #ifdef YAPOR CUT_wait_leftmost(); #endif /* YAPOR */ CACHE_Y(YREG); S_YREG = S_YREG - PREG->u.lds.extra; store_args(PREG->u.lds.s); store_yaam_regs(NEXTOP(PREG, lds), 0); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); TRYCC: ASP = (CELL *)B; { CPredicate f = (CPredicate)(PREG->u.lds.f); saveregs(); SREG = (CELL *) ((f) ()); } setregs(); if (!SREG) { FAIL(); } if ((CELL *) B == YREG && ASP != (CELL *) B) { /* as Luis says, the predicate that did the try C might * have left some data on the stack. We should preserve * it, unless the builtin also did cut */ YREG = ASP; HBREG = PROTECT_FROZEN_H(B); SET_BB(B); } PREG = CPREG; YREG = ENV; JMPNext(); ENDBOp(); BOp(retry_c, lds); #ifdef YAPOR CUT_wait_leftmost(); #endif /* YAPOR */ CACHE_Y(B); CPREG = B_YREG->cp_cp; ENV = B_YREG->cp_env; H = PROTECT_FROZEN_H(B); #ifdef DEPTH_LIMIT DEPTH =B->cp_depth; #endif HBREG = H; restore_args(PREG->u.lds.s); ENDCACHE_Y(); goto TRYCC; ENDBOp(); BOp(try_userc, lds); #ifdef YAPOR CUT_wait_leftmost(); #endif /* YAPOR */ CACHE_Y(YREG); S_YREG = S_YREG - PREG->u.lds.extra; store_args(PREG->u.lds.s); store_yaam_regs(NEXTOP(PREG, lds), 0); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif SET_BB(B_YREG); ENDCACHE_Y(); TRYUSERCC: Yap_PrologMode = UserCCallMode; ASP = YENV; saveregs(); save_machine_regs(); SREG = (CELL *) YAP_Execute(PREG->u.lds.p, (CPredicate)(PREG->u.lds.f)); EX = 0L; restore_machine_regs(); setregs(); Yap_PrologMode = UserMode; if (!SREG) { FAIL(); } if ((CELL *) B == YREG && ASP != (CELL *) B) { /* as Luis says, the predicate that did the try C might * have left some data on the stack. We should preserve * it, unless the builtin also did cut */ YREG = ASP; HBREG = PROTECT_FROZEN_H(B); } PREG = CPREG; YREG = ENV; CACHE_A1(); JMPNext(); ENDBOp(); BOp(retry_userc, lds); #ifdef YAPOR CUT_wait_leftmost(); #endif /* YAPOR */ CACHE_Y(B); CPREG = B_YREG->cp_cp; ENV = B_YREG->cp_env; H = PROTECT_FROZEN_H(B); #ifdef DEPTH_LIMIT DEPTH =B->cp_depth; #endif HBREG = H; restore_args(PREG->u.lds.s); ENDCACHE_Y(); goto TRYUSERCC; ENDBOp(); /************************************************************************\ * support instructions * \************************************************************************/ BOp(index_pred, e); { PredEntry *ap = PredFromDefCode(PREG); WRITE_LOCK(ap->PRWLock); #if defined(YAPOR) || defined(THREADS) /* we do not lock access to the predicate, we must take extra care here */ if (ap->OpcodeOfPred != INDEX_OPCODE) { /* someone was here before we were */ PREG = ap->CodeOfPred; WRITE_UNLOCK(ap->PRWLock); JMPNext(); } #endif /* update ASP before calling IPred */ ASP = YREG+E_CB; if (ASP > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } saveregs(); Yap_IPred(ap, 0); /* IPred can generate errors, it thus must get rid of the lock itself */ setregs(); CACHE_A1(); PREG = ap->CodeOfPred; WRITE_UNLOCK(ap->PRWLock); } JMPNext(); ENDBOp(); #if THREADS BOp(thread_local, e); { PredEntry *ap = PredFromDefCode(PREG); ap = Yap_GetThreadPred(ap); PREG = ap->CodeOfPred; } JMPNext(); ENDBOp(); #endif BOp(expand_index, e); { PredEntry *pe = PredFromExpandCode(PREG); yamop *pt0; /* update ASP before calling IPred */ ASP = YREG+E_CB; if (ASP > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } #if defined(YAPOR) || defined(THREADS) if (PP == NULL) { READ_LOCK(pe->PRWLock); PP = pe; } LOCK(pe->PELock); if (!same_lu_block(PREG_ADDR, PREG)) { PREG = *PREG_ADDR; if (pe->PredFlags & (ThreadLocalPredFlag|LogUpdatePredFlag)) { READ_UNLOCK(pe->PRWLock); PP = NULL; } UNLOCK(pe->PELock); JMPNext(); } #endif saveregs(); pt0 = Yap_ExpandIndex(pe, 0); /* restart index */ setregs(); UNLOCK(pe->PELock); PREG = pt0; #if defined(YAPOR) || defined(THREADS) if (pe->PredFlags & (ThreadLocalPredFlag|LogUpdatePredFlag)) { READ_UNLOCK(pe->PRWLock); PP = NULL; } #endif JMPNext(); } ENDBOp(); BOp(expand_clauses, sp); { PredEntry *pe = PREG->u.sp.p; yamop *pt0; /* update ASP before calling IPred */ ASP = YREG+E_CB; if (ASP > (CELL *) PROTECT_FROZEN_B(B)) { ASP = (CELL *) PROTECT_FROZEN_B(B); } #if defined(YAPOR) || defined(THREADS) if (PP == NULL) { READ_LOCK(pe->PRWLock); PP = pe; } LOCK(pe->PELock); if (!same_lu_block(PREG_ADDR, PREG)) { PREG = *PREG_ADDR; if (pe->PredFlags & (ThreadLocalPredFlag|LogUpdatePredFlag)) { READ_UNLOCK(pe->PRWLock); PP = NULL; } UNLOCK(pe->PELock); JMPNext(); } #endif saveregs(); pt0 = Yap_ExpandIndex(pe, 0); /* restart index */ setregs(); UNLOCK(pe->PELock); PREG = pt0; #if defined(YAPOR) || defined(THREADS) if (pe->PredFlags & (ThreadLocalPredFlag|LogUpdatePredFlag)) { READ_UNLOCK(pe->PRWLock); PP = NULL; } #endif JMPNext(); } ENDBOp(); BOp(undef_p, e); /* save S for module name */ { PredEntry *pe = PredFromDefCode(PREG); BEGD(d0); READ_LOCK(pe->PRWLock); /* avoid trouble with undefined dynamic procedures */ if (pe->PredFlags & (DynamicPredFlag|LogUpdatePredFlag)) { READ_UNLOCK(pe->PRWLock); FAIL(); } d0 = pe->ArityOfPE; READ_UNLOCK(pe->PRWLock); if (d0 == 0) { H[1] = MkAtomTerm((Atom)(pe->FunctorOfPred)); } else { H[d0 + 2] = AbsAppl(H); *H = (CELL) pe->FunctorOfPred; H++; BEGP(pt1); pt1 = XREGS + 1; for (; d0 > 0; --d0) { BEGD(d1); BEGP(pt0); pt0 = pt1++; d1 = *pt0; deref_head(d1, undef_unk); undef_nonvar: /* just copy it to the heap */ *H++ = d1; continue; derefa_body(d1, pt0, undef_unk, undef_nonvar); if (pt0 <= H) { /* variable is safe */ *H++ = (CELL)pt0; } else { /* bind it, in case it is a local variable */ d1 = Unsigned(H); RESET_VARIABLE(H); H += 1; Bind_Local(pt0, d1); } ENDP(pt0); ENDD(d1); } ENDP(pt1); } ENDD(d0); H[0] = Yap_Module_Name(pe); ARG1 = (Term) AbsPair(H); H += 2; #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,UndefCode,XREGS+1); #endif /* LOW_LEVEL_TRACE */ } PREG = UndefCode->CodeOfPred; CACHE_A1(); JMPNext(); ENDBOp(); BOp(spy_pred, e); dospy: { PredEntry *pe = PredFromDefCode(PREG); BEGD(d0); d0 = pe->ArityOfPE; /* save S for ModuleName */ if (d0 == 0) { H[1] = MkAtomTerm((Atom)(pe->FunctorOfPred)); } else { *H = (CELL) pe->FunctorOfPred; H[d0 + 2] = AbsAppl(H); H++; BEGP(pt1); pt1 = XREGS + 1; for (; d0 > 0; --d0) { BEGD(d1); BEGP(pt0); pt0 = pt1++; d1 = *pt0; deref_head(d1, dospy_unk); dospy_nonvar: /* just copy it to the heap */ *H++ = d1; continue; derefa_body(d1, pt0, dospy_unk, dospy_nonvar); if (pt0 <= H) { /* variable is safe */ *H++ = (CELL)pt0; } else { /* bind it, in case it is a local variable */ d1 = Unsigned(H); RESET_VARIABLE(H); H += 1; Bind_Local(pt0, d1); } ENDP(pt0); ENDD(d1); } ENDP(pt1); } ENDD(d0); H[0] = Yap_Module_Name(pe); } ARG1 = (Term) AbsPair(H); H += 2; { PredEntry *pt0; pt0 = SpyCode; P_before_spy = PREG; PREG = pt0->CodeOfPred; CACHE_A1(); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,pt0,XREGS+1); #endif /* LOW_LEVEL_TRACE */ } JMPNext(); /************************************************************************\ * Try / Retry / Trust for main indexing blocks * \************************************************************************/ BOp(try_clause, ld); check_trail(TR); CACHE_Y(YREG); /* Point AP to the code that follows this instruction */ store_at_least_one_arg(PREG->u.ld.s); store_yaam_regs(NEXTOP(PREG, ld), 0); PREG = PREG->u.ld.d; set_cut(S_YREG, B); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(try_clause2, l); check_trail(TR); CACHE_Y(YREG); /* Point AP to the code that follows this instruction */ { register CELL x2 = ARG2; register CELL x1 = ARG1; store_yaam_regs(NEXTOP(PREG, l), 2); B_YREG->cp_a1 = x1; B_YREG->cp_a2 = x2; } PREG = PREG->u.l.l; set_cut(S_YREG, B); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(try_clause3, l); check_trail(TR); CACHE_Y(YREG); /* Point AP to the code that follows this instruction */ { store_yaam_regs(NEXTOP(PREG, l), 3); B_YREG->cp_a1 = ARG1; B_YREG->cp_a2 = ARG2; B_YREG->cp_a3 = ARG3; } PREG = PREG->u.l.l; set_cut(S_YREG, B); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(try_clause4, l); check_trail(TR); CACHE_Y(YREG); /* Point AP to the code that follows this instruction */ { store_yaam_regs(NEXTOP(PREG, l), 4); B_YREG->cp_a1 = ARG1; B_YREG->cp_a2 = ARG2; B_YREG->cp_a3 = ARG3; B_YREG->cp_a4 = ARG4; } PREG = PREG->u.l.l; set_cut(S_YREG, B); B = B_YREG; #ifdef YAPOR SCH_set_load(B_YREG); #endif /* YAPOR */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(retry, ld); CACHE_Y(B); restore_yaam_regs(NEXTOP(PREG, ld)); restore_at_least_one_arg(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); PREG = PREG->u.ld.d; JMPNext(); ENDBOp(); BOp(retry2, l); CACHE_Y(B); restore_yaam_regs(NEXTOP(PREG, l)); PREG = PREG->u.l.l; ARG1 = B_YREG->cp_a1; ARG2 = B_YREG->cp_a2; #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(retry3, l); CACHE_Y(B); restore_yaam_regs(NEXTOP(PREG, l)); PREG = PREG->u.l.l; ARG1 = B_YREG->cp_a1; ARG2 = B_YREG->cp_a2; ARG3 = B_YREG->cp_a3; #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(retry4, l); CACHE_Y(B); restore_yaam_regs(NEXTOP(PREG, l)); PREG = PREG->u.l.l; ARG1 = B_YREG->cp_a1; ARG2 = B_YREG->cp_a2; ARG3 = B_YREG->cp_a3; ARG4 = B_YREG->cp_a4; #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); set_cut(S_YREG, B->cp_b); #else set_cut(S_YREG, B_YREG->cp_b); #endif /* FROZEN_STACKS */ SET_BB(B_YREG); ENDCACHE_Y(); JMPNext(); ENDBOp(); BOp(trust, ld); CACHE_Y(B); #ifdef YAPOR if (SCH_top_shared_cp(B)) { SCH_last_alternative(PREG, B_YREG); restore_at_least_one_arg(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B->cp_b); } else #endif /* YAPOR */ { pop_yaam_regs(); pop_at_least_one_arg(PREG->u.ld.s); #ifdef FROZEN_STACKS S_YREG = (CELL *) PROTECT_FROZEN_B(B_YREG); #endif /* FROZEN_STACKS */ set_cut(S_YREG, B); } SET_BB(B_YREG); ENDCACHE_Y(); PREG = PREG->u.ld.d; JMPNext(); ENDBOp(); BOp(try_in, l); B->cp_ap = NEXTOP(PREG, l); PREG = PREG->u.l.l; JMPNext(); ENDBOp(); /************************************************************************\ * Indexing in ARG1 * \************************************************************************/ BOp(switch_on_type, llll); BEGD(d0); d0 = CACHED_A1(); deref_head(d0, swt_unk); /* nonvar */ swt_nvar: if (IsPairTerm(d0)) { /* pair */ SREG = RepPair(d0); copy_jmp_address(PREG->u.llll.l1); PREG = PREG->u.llll.l1; JMPNext(); } else if (!IsApplTerm(d0)) { /* constant */ copy_jmp_address(PREG->u.llll.l2); PREG = PREG->u.llll.l2; I_R = d0; JMPNext(); } else { /* appl */ copy_jmp_address(PREG->u.llll.l3); PREG = PREG->u.llll.l3; SREG = RepAppl(d0); JMPNext(); } BEGP(pt0); deref_body(d0, pt0, swt_unk, swt_nvar); /* variable */ copy_jmp_address(PREG->u.llll.l4); PREG = PREG->u.llll.l4; JMPNext(); ENDP(pt0); ENDD(d0); ENDBOp(); /* specialised case where the arguments may be: * a list; * the empty list; * some other atom; * a variable; * */ BOp(switch_list_nl, ollll); ALWAYS_LOOKAHEAD(PREG->u.ollll.pop); BEGD(d0); d0 = CACHED_A1(); #if UNIQUE_TAG_FOR_PAIRS deref_list_head(d0, swlnl_unk_p); swlnl_list_p: { #else deref_head(d0, swlnl_unk_p); /* non variable */ swlnl_nvar_p: if (IsPairTerm(d0)) { /* pair */ #endif copy_jmp_address(PREG->u.ollll.l1); PREG = PREG->u.ollll.l1; SREG = RepPair(d0); ALWAYS_GONext(); } #if UNIQUE_TAG_FOR_PAIRS swlnl_nlist_p: #endif if (d0 == TermNil) { /* empty list */ PREG = PREG->u.ollll.l2; JMPNext(); } else { /* appl or constant */ if (IsApplTerm(d0)) { copy_jmp_address(PREG->u.ollll.l3); PREG = PREG->u.ollll.l3; SREG = RepAppl(d0); JMPNext(); } else { copy_jmp_address(PREG->u.ollll.l3); PREG = PREG->u.ollll.l3; I_R = d0; JMPNext(); } } BEGP(pt0); #if UNIQUE_TAG_FOR_PAIRS swlnl_unk_p: deref_list_body(d0, pt0, swlnl_list_p, swlnl_nlist_p); #else deref_body(d0, pt0, swlnl_unk_p, swlnl_nvar_p); #endif ENDP(pt0); /* variable */ copy_jmp_address(PREG->u.ollll.l4); PREG = PREG->u.ollll.l4; JMPNext(); ENDD(d0); } ENDBOp(); BOp(switch_on_arg_type, xllll); BEGD(d0); d0 = XREG(PREG->u.xllll.x); deref_head(d0, arg_swt_unk); /* nonvar */ arg_swt_nvar: if (IsPairTerm(d0)) { /* pair */ copy_jmp_address(PREG->u.xllll.l1); PREG = PREG->u.xllll.l1; SREG = RepPair(d0); JMPNext(); } else if (!IsApplTerm(d0)) { /* constant */ copy_jmp_address(PREG->u.xllll.l2); PREG = PREG->u.xllll.l2; I_R = d0; JMPNext(); } else { /* appl */ copy_jmp_address(PREG->u.xllll.l3); PREG = PREG->u.xllll.l3; SREG = RepAppl(d0); JMPNext(); } BEGP(pt0); deref_body(d0, pt0, arg_swt_unk, arg_swt_nvar); /* variable */ copy_jmp_address(PREG->u.xllll.l4); PREG = PREG->u.xllll.l4; JMPNext(); ENDP(pt0); ENDD(d0); ENDBOp(); BOp(switch_on_sub_arg_type, sllll); BEGD(d0); d0 = SREG[PREG->u.sllll.s]; deref_head(d0, sub_arg_swt_unk); /* nonvar */ sub_arg_swt_nvar: if (IsPairTerm(d0)) { /* pair */ copy_jmp_address(PREG->u.sllll.l1); PREG = PREG->u.sllll.l1; SREG = RepPair(d0); JMPNext(); } else if (!IsApplTerm(d0)) { /* constant */ copy_jmp_address(PREG->u.sllll.l2); PREG = PREG->u.sllll.l2; I_R = d0; JMPNext(); } else { /* appl */ copy_jmp_address(PREG->u.sllll.l3); PREG = PREG->u.sllll.l3; SREG = RepAppl(d0); JMPNext(); } BEGP(pt0); deref_body(d0, pt0, sub_arg_swt_unk, sub_arg_swt_nvar); /* variable */ copy_jmp_address(PREG->u.sllll.l4); PREG = PREG->u.sllll.l4; JMPNext(); ENDP(pt0); ENDD(d0); ENDBOp(); BOp(jump_if_var, l); BEGD(d0); d0 = CACHED_A1(); deref_head(d0, jump_if_unk); /* non var */ jump0_if_nonvar: PREG = NEXTOP(PREG, l); JMPNext(); BEGP(pt0); deref_body(d0, pt0, jump_if_unk, jump0_if_nonvar); /* variable */ copy_jmp_address(PREG->u.l.l); PREG = PREG->u.l.l; ENDP(pt0); JMPNext(); ENDD(d0); ENDBOp(); BOp(jump_if_nonvar, xll); BEGD(d0); d0 = XREG(PREG->u.xll.x); deref_head(d0, jump2_if_unk); /* non var */ jump2_if_nonvar: copy_jmp_address(PREG->u.xll.l1); PREG = PREG->u.xll.l1; JMPNext(); BEGP(pt0); deref_body(d0, pt0, jump2_if_unk, jump2_if_nonvar); /* variable */ PREG = NEXTOP(PREG, xll); ENDP(pt0); JMPNext(); ENDD(d0); ENDBOp(); BOp(if_not_then, clll); BEGD(d0); d0 = CACHED_A1(); deref_head(d0, if_n_unk); if_n_nvar: /* not variable */ if (d0 == PREG->u.clll.c) { /* equal to test value */ copy_jmp_address(PREG->u.clll.l2); PREG = PREG->u.clll.l2; JMPNext(); } else { /* different from test value */ /* the case to optimise */ copy_jmp_address(PREG->u.clll.l1); PREG = PREG->u.clll.l1; JMPNext(); } BEGP(pt0); deref_body(d0, pt0, if_n_unk, if_n_nvar); ENDP(pt0); /* variable */ copy_jmp_address(PREG->u.clll.l3); PREG = PREG->u.clll.l3; JMPNext(); ENDD(d0); ENDBOp(); /************************************************************************\ * Indexing on ARG1 * \************************************************************************/ #define HASH_SHIFT 6 BOp(switch_on_func, sssl); BEGD(d1); d1 = *SREG++; /* we use a very simple hash function to find elements in a * switch table */ { register CELL /* first, calculate the mask */ Mask = (PREG->u.sssl.s - 1) << 1, /* next, calculate the hash function */ hash = d1 >> (HASH_SHIFT - 1) & Mask; PREG = (yamop *)(PREG->u.sssl.l); /* PREG now points at the beginning of the hash table */ BEGP(pt0); /* pt0 will always point at the item */ pt0 = (CELL *) (PREG) + hash; BEGD(d0); d0 = pt0[0]; /* a match happens either if we found the value, or if we * found an empty slot */ if (d0 == d1 || d0 == 0) { copy_jmp_addressa(pt0+1); PREG = (yamop *) (pt0[1]); JMPNext(); } else { /* ooops, collision, look for other items */ register CELL d = ((d1 | 1) << 1) & Mask; while (1) { hash = (hash + d) & Mask; pt0 = (CELL *) (PREG) + hash; d0 = pt0[0]; if (d0 == d1 || d0 == 0) { copy_jmp_addressa(pt0+1); PREG = (yamop *) pt0[1]; JMPNext(); } } } ENDD(d0); ENDP(pt0); } ENDD(d1); ENDBOp(); BOp(switch_on_cons, sssl); BEGD(d1); d1 = I_R; /* we use a very simple hash function to find elements in a * switch table */ { register CELL /* first, calculate the mask */ Mask = (PREG->u.sssl.s - 1) << 1, /* next, calculate the hash function */ hash = d1 >> (HASH_SHIFT - 1) & Mask; PREG = (yamop *)(PREG->u.sssl.l); /* PREG now points at the beginning of the hash table */ BEGP(pt0); /* pt0 will always point at the item */ pt0 = (CELL *) (PREG) + hash; BEGD(d0); d0 = pt0[0]; /* a match happens either if we found the value, or if we * found an empty slot */ if (d0 == d1 || d0 == 0) { copy_jmp_addressa(pt0+1); PREG = (yamop *) (pt0[1]); JMPNext(); } else { /* ooops, collision, look for other items */ register CELL d = ((d1 | 1) << 1) & Mask; while (1) { hash = (hash + d) & Mask; pt0 = (CELL *) (PREG) + hash; d0 = pt0[0]; if (d0 == d1 || d0 == 0) { copy_jmp_addressa(pt0+1); PREG = (yamop *) pt0[1]; JMPNext(); } } } ENDD(d0); ENDP(pt0); } ENDD(d1); ENDBOp(); BOp(go_on_func, sssl); BEGD(d0); { CELL *pt = (CELL *)(PREG->u.sssl.l); d0 = *SREG++; if (d0 == pt[0]) { copy_jmp_addressa(pt+1); PREG = (yamop *) pt[1]; JMPNext(); } else { copy_jmp_addressa(pt+3); PREG = (yamop *) pt[3]; JMPNext(); } } ENDD(d0); ENDBOp(); BOp(go_on_cons, sssl); BEGD(d0); { CELL *pt = (CELL *)(PREG->u.sssl.l); d0 = I_R; if (d0 == pt[0]) { copy_jmp_addressa(pt+1); PREG = (yamop *) pt[1]; JMPNext(); } else { copy_jmp_addressa(pt+3); PREG = (yamop *) pt[3]; JMPNext(); } } ENDD(d0); ENDBOp(); BOp(if_func, sssl); BEGD(d1); BEGP(pt0); pt0 = (CELL *) PREG->u.sssl.l; d1 = *SREG++; while (pt0[0] != d1 && pt0[0] != (CELL)NULL ) { pt0 += 2; } copy_jmp_addressa(pt0+1); PREG = (yamop *) (pt0[1]); JMPNext(); ENDP(pt0); ENDD(d1); ENDBOp(); BOp(if_cons, sssl); BEGD(d1); BEGP(pt0); pt0 = (CELL *) PREG->u.sssl.l; d1 = I_R; while (pt0[0] != d1 && pt0[0] != 0L ) { pt0 += 2; } copy_jmp_addressa(pt0+1); PREG = (yamop *) (pt0[1]); JMPNext(); ENDP(pt0); ENDD(d1); ENDBOp(); Op(index_dbref, e); PREG = NEXTOP(PREG, e); I_R = AbsAppl(SREG-1); GONext(); ENDOp(); Op(index_blob, e); PREG = NEXTOP(PREG, e); I_R = MkIntTerm(SREG[0]); GONext(); ENDOp(); /************************************************************************\ * Basic Primitive Predicates * \************************************************************************/ Op(p_atom_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, atom_x_unk); atom_x_nvar: if (IsAtomTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } else { PREG = PREG->u.xF.F; GONext(); } BEGP(pt0); deref_body(d0, pt0, atom_x_unk, atom_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_atom_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, atom_y_unk); atom_y_nvar: if (IsAtomTerm(d0)) { PREG = NEXTOP(PREG, yF); GONext(); } else { PREG = PREG->u.yF.F; GONext(); } derefa_body(d0, pt0, atom_y_unk, atom_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_atomic_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, atomic_x_unk); atomic_x_nvar: /* non variable */ if (IsAtomicTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } else { PREG = PREG->u.xF.F; GONext(); } BEGP(pt0); deref_body(d0, pt0, atomic_x_unk, atomic_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_atomic_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, atomic_y_unk); atomic_y_nvar: /* non variable */ if (IsAtomicTerm(d0)) { PREG = NEXTOP(PREG, yF); GONext(); } else { PREG = PREG->u.yF.F; GONext(); } derefa_body(d0, pt0, atomic_y_unk, atomic_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_integer_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, integer_x_unk); integer_x_nvar: /* non variable */ if (IsIntTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } if (IsApplTerm(d0)) { Functor f0 = FunctorOfTerm(d0); if (IsExtensionFunctor(f0)) { switch ((CELL)f0) { case (CELL)FunctorLongInt: #ifdef USE_GMP case (CELL)FunctorBigInt: #endif PREG = NEXTOP(PREG, xF); GONext(); default: PREG = PREG->u.xF.F; GONext(); } } } PREG = PREG->u.xF.F; GONext(); BEGP(pt0); deref_body(d0, pt0, integer_x_unk, integer_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_integer_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, integer_y_unk); integer_y_nvar: /* non variable */ if (IsIntTerm(d0)) { PREG = NEXTOP(PREG, yF); GONext(); } if (IsApplTerm(d0)) { Functor f0 = FunctorOfTerm(d0); if (IsExtensionFunctor(f0)) { switch ((CELL)f0) { case (CELL)FunctorLongInt: #ifdef USE_GMP case (CELL)FunctorBigInt: #endif PREG = NEXTOP(PREG, yF); GONext(); default: PREG = PREG->u.yF.F; GONext(); } } } PREG = PREG->u.yF.F; GONext(); derefa_body(d0, pt0, integer_y_unk, integer_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_nonvar_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, nonvar_x_unk); nonvar_x_nvar: PREG = NEXTOP(PREG, xF); GONext(); BEGP(pt0); deref_body(d0, pt0, nonvar_x_unk, nonvar_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_nonvar_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, nonvar_y_unk); nonvar_y_nvar: PREG = NEXTOP(PREG, yF); GONext(); derefa_body(d0, pt0, nonvar_y_unk, nonvar_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_number_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, number_x_unk); number_x_nvar: /* non variable */ if (IsIntTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } if (IsApplTerm(d0)) { Functor f0 = FunctorOfTerm(d0); if (IsExtensionFunctor(f0)) { switch ((CELL)f0) { case (CELL)FunctorLongInt: case (CELL)FunctorDouble: #ifdef USE_GMP case (CELL)FunctorBigInt: #endif PREG = NEXTOP(PREG, xF); GONext(); default: PREG = PREG->u.xF.F; GONext(); } } } PREG = PREG->u.xF.F; GONext(); BEGP(pt0); deref_body(d0, pt0, number_x_unk, number_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_number_y, xF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, number_y_unk); number_y_nvar: /* non variable */ /* non variable */ if (IsIntTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } if (IsApplTerm(d0)) { Functor f0 = FunctorOfTerm(d0); if (IsExtensionFunctor(f0)) { switch ((CELL)f0) { case (CELL)FunctorLongInt: case (CELL)FunctorDouble: #ifdef USE_GMP case (CELL)FunctorBigInt: #endif PREG = NEXTOP(PREG, yF); GONext(); default: PREG = PREG->u.yF.F; GONext(); } } } PREG = PREG->u.xF.F; GONext(); derefa_body(d0, pt0, number_y_unk, number_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_var_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, var_x_unk); var_x_nvar: /* non variable */ PREG = PREG->u.xF.F; GONext(); BEGP(pt0); deref_body(d0, pt0, var_x_unk, var_x_nvar); PREG = NEXTOP(PREG, xF); GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_var_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, var_y_unk); var_y_nvar: /* non variable */ PREG = PREG->u.yF.F; GONext(); derefa_body(d0, pt0, var_y_unk, var_y_nvar); PREG = NEXTOP(PREG, yF); GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_db_ref_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, dbref_x_unk); dbref_x_nvar: /* non variable */ if (IsDBRefTerm(d0)) { /* only allow references to the database, not general references * to go through. */ PREG = NEXTOP(PREG, xF); GONext(); } else { PREG = PREG->u.xF.F; GONext(); } BEGP(pt0); deref_body(d0, pt0, dbref_x_unk, dbref_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_db_ref_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, dbref_y_unk); dbref_y_nvar: /* non variable */ if (IsDBRefTerm(d0)) { /* only allow references to the database, not general references * to go through. */ PREG = NEXTOP(PREG, yF); GONext(); } else { PREG = PREG->u.yF.F; GONext(); } derefa_body(d0, pt0, dbref_y_unk, dbref_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_primitive_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, primi_x_unk); primi_x_nvar: /* non variable */ if (IsPrimitiveTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } else { PREG = PREG->u.xF.F; GONext(); } BEGP(pt0); deref_body(d0, pt0, primi_x_unk, primi_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_primitive_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, primi_y_unk); primi_y_nvar: /* non variable */ if (IsPrimitiveTerm(d0)) { PREG = NEXTOP(PREG, yF); GONext(); } else { PREG = PREG->u.yF.F; GONext(); } derefa_body(d0, pt0, primi_y_unk, primi_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_compound_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, compound_x_unk); compound_x_nvar: /* non variable */ if (IsPairTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } else if (IsApplTerm(d0)) { if (IsExtensionFunctor(FunctorOfTerm(d0))) { PREG = PREG->u.xF.F; GONext(); } PREG = NEXTOP(PREG, xF); GONext(); } else { PREG = PREG->u.xF.F; GONext(); } BEGP(pt0); deref_body(d0, pt0, compound_x_unk, compound_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_compound_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, compound_y_unk); compound_y_nvar: /* non variable */ if (IsPairTerm(d0)) { PREG = NEXTOP(PREG, yF); GONext(); } else if (IsApplTerm(d0)) { if (IsExtensionFunctor(FunctorOfTerm(d0))) { PREG = PREG->u.yF.F; GONext(); } PREG = NEXTOP(PREG, yF); GONext(); } else { PREG = PREG->u.yF.F; GONext(); } derefa_body(d0, pt0, compound_y_unk, compound_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_float_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, float_x_unk); float_x_nvar: /* non variable */ if (IsFloatTerm(d0)) { PREG = NEXTOP(PREG, xF); GONext(); } PREG = PREG->u.xF.F; GONext(); BEGP(pt0); deref_body(d0, pt0, float_x_unk, float_x_nvar); PREG = PREG->u.xF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_float_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, float_y_unk); float_y_nvar: /* non variable */ if (IsFloatTerm(d0)) { PREG = NEXTOP(PREG, yF); GONext(); } PREG = PREG->u.yF.F; GONext(); derefa_body(d0, pt0, float_y_unk, float_y_nvar); PREG = PREG->u.yF.F; GONext(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_cut_by_x, xF); BEGD(d0); d0 = XREG(PREG->u.xF.x); deref_head(d0, cutby_x_unk); cutby_x_nvar: #if defined(SBA) && defined(FROZEN_STACKS) if (!IsIntegerTerm(d0)) { #else if (!IsIntTerm(d0)) { #endif /* SBA && FROZEN_STACKS */ PREG = NEXTOP(PREG, xF); GONext(); } BEGCHO(pt0); #if defined(SBA) && defined(FROZEN_STACKS) pt0 = (choiceptr)IntegerOfTerm(d0); #else pt0 = (choiceptr)(LCL0-IntOfTerm(d0)); #endif /* SBA && FROZEN_STACKS */ #ifdef YAPOR CUT_prune_to(pt0); #endif /* YAPOR */ /* find where to cut to */ if (SHOULD_CUT_UP_TO(B,pt0)) { /* Wow, we're gonna cut!!! */ while (B->cp_b < pt0) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ goto trim_trail; } PREG = NEXTOP(PREG, xF); ENDCHO(pt0); GONext(); BEGP(pt1); deref_body(d0, pt1, cutby_x_unk, cutby_x_nvar); ENDP(pt1); /* never cut to a variable */ /* Abort */ FAIL(); ENDD(d0); ENDOp(); Op(p_cut_by_y, yF); BEGD(d0); BEGP(pt0); pt0 = YREG + PREG->u.yF.y; d0 = *pt0; deref_head(d0, cutby_y_unk); cutby_y_nvar: #if defined(SBA) && defined(FROZEN_STACKS) if (!IsIntegerTerm(d0)) { #else if (!IsIntTerm(d0)) { #endif FAIL(); } /* find where to cut to */ BEGCHO(pt1); #if defined(SBA) && defined(FROZEN_STACKS) pt1 = (choiceptr)IntegerOfTerm(d0); #else pt1 = (choiceptr)(LCL0-IntOfTerm(d0)); #endif /* SBA && FROZEN_STACKS */ #ifdef YAPOR CUT_prune_to(pt1); #endif /* YAPOR */ if (SHOULD_CUT_UP_TO(B,pt1)) { /* Wow, we're gonna cut!!! */ while (B->cp_b < pt1) { B = B->cp_b; } #ifdef TABLING abolish_incomplete_subgoals(B); #endif /* TABLING */ goto trim_trail; } PREG = NEXTOP(PREG, yF); GONext(); ENDCHO(pt1); derefa_body(d0, pt0, cutby_y_unk, cutby_y_nvar); /* never cut to a variable */ /* Abort */ FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_plus_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, plus_vv_unk); plus_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, plus_vv_nvar_unk); plus_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) + IntOfTerm(d1)); } else { saveregs(); d0 = p_plus(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, plus_vv_unk, plus_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A+B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, plus_vv_nvar_unk, plus_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A+B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_plus_vc, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, plus_vc_unk); plus_vc_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) + d1); } else { saveregs(); d0 = p_plus(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, plus_vc_unk, plus_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A+B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_plus_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, plus_y_vv_unk); plus_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, plus_y_vv_nvar_unk); plus_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) + IntOfTerm(d1)); } else { saveregs(); d0 = p_plus(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, plus_y_vv_unk, plus_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A+B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, plus_y_vv_nvar_unk, plus_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A+B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_plus_y_vc, yxc); BEGD(d0); d0 = XREG(PREG->u.yxc.xi); /* first check pt1 */ deref_head(d0, plus_y_vc_unk); plus_y_vc_nvar: { Int d1 = PREG->u.yxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) + d1); } else { saveregs(); d0 = p_plus(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, plus_y_vc_unk, plus_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A+B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_minus_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, minus_vv_unk); minus_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, minus_vv_nvar_unk); minus_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) - IntOfTerm(d1)); } else { saveregs(); d0 = p_minus(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, minus_vv_unk, minus_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A-B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, minus_vv_nvar_unk, minus_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A-B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_minus_cv, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, minus_cv_unk); minus_cv_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(d1 - IntOfTerm(d0)); } else { saveregs(); d0 = p_minus(MkIntegerTerm(d1),d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, minus_cv_unk, minus_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A-B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_minus_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, minus_y_vv_unk); minus_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, minus_y_vv_nvar_unk); minus_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) - IntOfTerm(d1)); } else { saveregs(); d0 = p_minus(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, minus_y_vv_unk, minus_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A-B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, minus_y_vv_nvar_unk, minus_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A-B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_minus_y_cv, ycx); BEGD(d0); d0 = XREG(PREG->u.ycx.xi); /* first check pt1 */ deref_head(d0, minus_y_cv_unk); minus_y_cv_nvar: { Int d1 = PREG->u.ycx.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(d1 - IntOfTerm(d0)); } else { saveregs(); d0 = p_minus(MkIntegerTerm(d1), d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.ycx.y; PREG = NEXTOP(PREG, ycx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, minus_y_cv_unk, minus_y_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A-B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_times_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, times_vv_unk); times_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, times_vv_nvar_unk); times_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = times_int(IntOfTerm(d0), IntOfTerm(d1)); } else { saveregs(); d0 = p_times(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, times_vv_unk, times_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A*B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, times_vv_nvar_unk, times_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A*B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_times_vc, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, times_vc_unk); times_vc_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = times_int(IntOfTerm(d0), d1); } else { saveregs(); d0 = p_times(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, times_vc_unk, times_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A*B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_times_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, times_y_vv_unk); times_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, times_y_vv_nvar_unk); times_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = times_int(IntOfTerm(d0), IntOfTerm(d1)); } else { saveregs(); d0 = p_times(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, times_y_vv_unk, times_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A*B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, times_y_vv_nvar_unk, times_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A*B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_times_y_vc, yxc); BEGD(d0); d0 = XREG(PREG->u.yxc.xi); /* first check pt1 */ deref_head(d0, times_y_vc_unk); times_y_vc_nvar: { Int d1 = PREG->u.yxc.c; if (IsIntTerm(d0)) { d0 = times_int(IntOfTerm(d0), d1); } else { saveregs(); d0 = p_times(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, times_y_vc_unk, times_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A*B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_div_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, div_vv_unk); div_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, div_vv_nvar_unk); div_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { Int div = IntOfTerm(d1); if (div == 0) { saveregs(); Yap_Error(EVALUATION_ERROR_ZERO_DIVISOR,TermNil,"// /2"); setregs(); FAIL(); } d0 = MkIntTerm(IntOfTerm(d0) / div); } else { saveregs(); d0 = p_div(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, div_vv_unk, div_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, div_vv_nvar_unk, div_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_div_vc, xcx); BEGD(d0); d0 = XREG(PREG->u.xcx.xi); /* first check pt1 */ deref_head(d0, div_vc_unk); div_vc_nvar: { Int d1 = PREG->u.xcx.c; if (IsIntTerm(d0)) { d0 = MkIntTerm(IntOfTerm(d0) / d1); } else { saveregs(); d0 = p_div(d0,MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xcx.x) = d0; PREG = NEXTOP(PREG, xcx); GONext(); BEGP(pt0); deref_body(d0, pt0, div_vc_unk, div_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_div_cv, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, div_cv_unk); div_cv_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { Int div = IntOfTerm(d0); if (div == 0){ saveregs(); Yap_Error(EVALUATION_ERROR_ZERO_DIVISOR,TermNil,"// /2"); setregs(); FAIL(); } d0 = MkIntegerTerm(d1 / div); } else { saveregs(); d0 = p_div(MkIntegerTerm(d1),d0); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, div_cv_unk, div_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_div_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, div_y_vv_unk); div_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, div_y_vv_nvar_unk); div_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { Int div = IntOfTerm(d1); if (div == 0) { saveregs(); Yap_Error(EVALUATION_ERROR_ZERO_DIVISOR,TermNil,"// /2"); setregs(); FAIL(); } d0 = MkIntTerm(IntOfTerm(d0) / div); } else { saveregs(); d0 = p_div(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, div_y_vv_unk, div_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, div_y_vv_nvar_unk, div_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_div_y_vc, yxc); BEGD(d0); d0 = XREG(PREG->u.ycx.xi); /* first check pt1 */ deref_head(d0, div_y_vc_unk); div_y_vc_nvar: { Int d1 = PREG->u.ycx.c; if (IsIntTerm(d0)) { d0 = MkIntTerm(IntOfTerm(d0)/d1); } else { saveregs(); d0 = p_div(d0,MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, div_y_vc_unk, div_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_div_y_cv, ycx); BEGD(d0); d0 = XREG(PREG->u.ycx.xi); /* first check pt1 */ deref_head(d0, div_y_cv_unk); div_y_cv_nvar: { Int d1 = PREG->u.ycx.c; if (IsIntTerm(d0)) { Int div = IntOfTerm(d0); if (div == 0) { saveregs(); Yap_Error(EVALUATION_ERROR_ZERO_DIVISOR,TermNil,"// /2"); setregs(); FAIL(); } d0 = MkIntegerTerm(d1 / div); } else { saveregs(); d0 = p_div(MkIntegerTerm(d1), d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.ycx.y; PREG = NEXTOP(PREG, ycx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, div_y_cv_unk, div_y_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A//B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_and_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, and_vv_unk); and_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, and_vv_nvar_unk); and_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) & IntOfTerm(d1)); } else { saveregs(); d0 = p_and(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, and_vv_unk, and_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A/\\B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, and_vv_nvar_unk, and_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A/\\B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_and_vc, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, and_vc_unk); and_vc_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) & d1); } else { saveregs(); d0 = p_and(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, and_vc_unk, and_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A/\\B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_and_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, and_y_vv_unk); and_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, and_y_vv_nvar_unk); and_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) & IntOfTerm(d1)); } else { saveregs(); d0 = p_and(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, and_y_vv_unk, and_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A/\\B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, and_y_vv_nvar_unk, and_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A/\\B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_and_y_vc, yxc); BEGD(d0); d0 = XREG(PREG->u.yxc.xi); /* first check pt1 */ deref_head(d0, and_y_vc_unk); and_y_vc_nvar: { Int d1 = PREG->u.yxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) & d1); } else { saveregs(); d0 = p_and(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, and_y_vc_unk, and_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A/\\B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_or_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, or_vv_unk); or_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, or_vv_nvar_unk); or_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) | IntOfTerm(d1)); } else { saveregs(); d0 = p_or(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, or_vv_unk, or_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A\\/B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, or_vv_nvar_unk, or_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A\\/B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_or_vc, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, or_vc_unk); or_vc_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) | d1); } else { saveregs(); d0 = p_or(d0, MkIntegerTerm(d1)); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, or_vc_unk, or_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A\\/B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_or_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, or_y_vv_unk); or_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, or_y_vv_nvar_unk); or_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) | IntOfTerm(d1)); } else { saveregs(); d0 = p_or(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, or_y_vv_unk, or_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A\\/B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, or_y_vv_nvar_unk, or_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A\\/B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_or_y_vc, yxc); BEGD(d0); d0 = XREG(PREG->u.yxc.xi); /* first check pt1 */ deref_head(d0, or_y_vc_unk); or_y_vc_nvar: { Int d1 = PREG->u.yxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) | d1); } else { saveregs(); d0 = p_or(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, or_y_vc_unk, or_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A\\/B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_sll_vv, xxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.xxx.x1); /* first check pt1 */ deref_head(d0, sll_vv_unk); sll_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, sll_vv_nvar_unk); sll_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) << IntOfTerm(d1)); } else { saveregs(); d0 = p_sll(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, sll_vv_unk, sll_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A<u.xxc.xi); /* first check pt1 */ deref_head(d0, sll_vc_unk); sll_vc_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) << d1); } else { saveregs(); d0 = p_sll(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, sll_vc_unk, sll_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A<u.xcx.xi); /* first check pt1 */ deref_head(d0, sll_cv_unk); sll_cv_nvar: { Int d1 = PREG->u.xcx.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(d1 << IntOfTerm(d0)); } else { saveregs(); d0 = p_sll(MkIntegerTerm(d1), d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xcx); GONext(); BEGP(pt0); deref_body(d0, pt0, sll_cv_unk, sll_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A<u.yxx.x1); /* first check pt1 */ deref_head(d0, sll_y_vv_unk); sll_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, sll_y_vv_nvar_unk); sll_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) << IntOfTerm(d1)); } else { saveregs(); d0 = p_sll(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, sll_y_vv_unk, sll_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A<u.yxc.xi); /* first check pt1 */ deref_head(d0, sll_y_vc_unk); sll_y_vc_nvar: { Int d1 = PREG->u.yxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) << d1); } else { saveregs(); d0 = p_sll(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, sll_y_vc_unk, sll_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A<u.ycx.xi); /* first check pt1 */ deref_head(d0, sll_y_cv_unk); sll_y_cv_nvar: { Int d1 = PREG->u.ycx.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(d1 << IntOfTerm(d0)); } else { saveregs(); d0 = p_sll(MkIntegerTerm(d1), d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.ycx.y; PREG = NEXTOP(PREG, ycx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, sll_y_cv_unk, sll_y_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A<u.xxx.x1); /* first check pt1 */ deref_head(d0, slr_vv_unk); slr_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, slr_vv_nvar_unk); slr_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) >> IntOfTerm(d1)); } else { saveregs(); d0 = p_slr(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(PREG, xxx); GONext(); BEGP(pt0); deref_body(d0, pt0, slr_vv_unk, slr_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, slr_vv_nvar_unk, slr_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_slr_vc, xxc); BEGD(d0); d0 = XREG(PREG->u.xxc.xi); /* first check pt1 */ deref_head(d0, slr_vc_unk); slr_vc_nvar: { Int d1 = PREG->u.xxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) >> d1); } else { saveregs(); d0 = p_slr(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xxc); GONext(); BEGP(pt0); deref_body(d0, pt0, slr_vc_unk, slr_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_slr_cv, xcx); BEGD(d0); d0 = XREG(PREG->u.xcx.xi); /* first check pt1 */ deref_head(d0, slr_cv_unk); slr_cv_nvar: { Int d1 = PREG->u.xcx.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(d1 >> IntOfTerm(d0)); } else { saveregs(); d0 = p_slr(MkIntegerTerm(d1), d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(PREG, xcx); GONext(); BEGP(pt0); deref_body(d0, pt0, slr_cv_unk, slr_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_slr_y_vv, yxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.yxx.x1); /* first check pt1 */ deref_head(d0, slr_y_vv_unk); slr_y_vv_nvar: d1 = XREG(PREG->u.xxx.x2); /* next check A2 */ deref_head(d1, slr_y_vv_nvar_unk); slr_y_vv_nvar_nvar: /* d0 and d1 are where I want them */ if (IsIntTerm(d0) && IsIntTerm(d1)) { d0 = MkIntegerTerm(IntOfTerm(d0) >> IntOfTerm(d1)); } else { saveregs(); d0 = p_slr(d0, d1); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } BEGP(pt0); pt0 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, slr_y_vv_unk, slr_y_vv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, slr_y_vv_nvar_unk, slr_y_vv_nvar_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); ENDD(d1); ENDD(d0); ENDOp(); Op(p_slr_y_vc, yxc); BEGD(d0); d0 = XREG(PREG->u.yxc.xi); /* first check pt1 */ deref_head(d0, slr_y_vc_unk); slr_y_vc_nvar: { Int d1 = PREG->u.yxc.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(IntOfTerm(d0) >> d1); } else { saveregs(); d0 = p_slr(d0, MkIntegerTerm(d1)); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, slr_y_vc_unk, slr_y_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_slr_y_cv, ycx); BEGD(d0); d0 = XREG(PREG->u.ycx.xi); /* first check pt1 */ deref_head(d0, slr_y_cv_unk); slr_y_cv_nvar: { Int d1 = PREG->u.ycx.c; if (IsIntTerm(d0)) { d0 = MkIntegerTerm(d1 >> IntOfTerm(d0)); } else { saveregs(); d0 = p_slr(MkIntegerTerm(d1), d0); setregs(); if (PREG == (yamop *)FAILCODE) FAIL(); } } BEGP(pt0); pt0 = YREG + PREG->u.ycx.y; PREG = NEXTOP(PREG, ycx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt0,d0); #else *pt0 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt0); GONext(); BEGP(pt0); deref_body(d0, pt0, slr_y_cv_unk, slr_y_cv_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, TermNil, "X is A>>B"); setregs(); FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); BOp(call_bfunc_xx, llxx); BEGD(d0); BEGD(d1); d0 = XREG(PREG->u.llxx.x1); call_bfunc_xx_nvar: d1 = XREG(PREG->u.llxx.x2); call_bfunc_xx2_nvar: deref_head(d0, call_bfunc_xx_unk); deref_head(d1, call_bfunc_xx2_unk); if (IsIntTerm(d0) && IsIntTerm(d1)) { int flags; Int v = IntOfTerm(d0) - IntOfTerm(d1); flags = PREG->u.llxx.flags; if (v > 0) { if (flags & GT_OK_IN_CMP) { PREG = NEXTOP(PREG, llxx); JMPNext(); } else { PREG = PREG->u.llxx.f; JMPNext(); } } else if (v < 0) { if (flags & LT_OK_IN_CMP) { PREG = NEXTOP(PREG, llxx); JMPNext(); } else { PREG = PREG->u.llxx.f; JMPNext(); } } else /* if (v == 0) */ { if (flags & EQ_OK_IN_CMP) { PREG = NEXTOP(PREG, llxx); JMPNext(); } else { PREG = PREG->u.llxx.f; JMPNext(); } } } exec_bin_cmp_xx: { CmpPredicate f = PREG->u.llxx.p->cs.d_code; saveregs(); d0 = (CELL) (f) (d0,d1); setregs(); } if (!d0) { if (PREG != FAILCODE) PREG = PREG->u.llxx.f; JMPNext(); } PREG = NEXTOP(PREG, llxx); JMPNext(); BEGP(pt0); deref_body(d0, pt0, call_bfunc_xx_unk, call_bfunc_xx_nvar); d1 = Deref(d1); goto exec_bin_cmp_xx; ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, call_bfunc_xx2_unk, call_bfunc_xx2_nvar); goto exec_bin_cmp_xx; ENDP(pt0); ENDD(d1); ENDD(d0); ENDBOp(); BOp(call_bfunc_yx, llxy); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = YREG + PREG->u.llxy.y; d1 = XREG(PREG->u.llxy.x); d0 = *pt0; ENDP(pt0); deref_head(d0, call_bfunc_yx_unk); call_bfunc_yx_nvar: deref_head(d1, call_bfunc_yx2_unk); call_bfunc_yx2_nvar: if (IsIntTerm(d0) && IsIntTerm(d1)) { int flags; Int v = IntOfTerm(d0) - IntOfTerm(d1); flags = PREG->u.llxy.flags; if (v > 0) { if (flags & GT_OK_IN_CMP) { PREG = NEXTOP(PREG, llxy); JMPNext(); } else { PREG = PREG->u.llxy.f; JMPNext(); } } else if (v < 0) { if (flags & LT_OK_IN_CMP) { PREG = NEXTOP(PREG, llxy); JMPNext(); } else { PREG = PREG->u.llxy.f; JMPNext(); } } else /* if (v == 0) */ { if (flags & EQ_OK_IN_CMP) { PREG = NEXTOP(PREG, llxy); JMPNext(); } else { PREG = PREG->u.llxy.f; JMPNext(); } } } exec_bin_cmp_yx: { CmpPredicate f = PREG->u.llxy.p->cs.d_code; saveregs(); d0 = (CELL) (f) (d0,d1); setregs(); } if (!d0) { if (PREG != FAILCODE) PREG = PREG->u.llxy.f; JMPNext(); } PREG = NEXTOP(PREG, llxy); JMPNext(); BEGP(pt0); deref_body(d0, pt0, call_bfunc_yx_unk, call_bfunc_yx_nvar); d1 = Deref(d1); goto exec_bin_cmp_yx; ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, call_bfunc_yx2_unk, call_bfunc_yx2_nvar); goto exec_bin_cmp_yx; ENDP(pt0); ENDD(d1); ENDD(d0); ENDBOp(); BOp(call_bfunc_xy, llxy); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = YREG + PREG->u.llxy.y; d0 = XREG(PREG->u.llxy.x); d1 = *pt0; ENDP(pt0); deref_head(d0, call_bfunc_xy_unk); call_bfunc_xy_nvar: deref_head(d1, call_bfunc_xy2_unk); call_bfunc_xy2_nvar: if (IsIntTerm(d0) && IsIntTerm(d1)) { int flags; Int v = IntOfTerm(d0) - IntOfTerm(d1); flags = PREG->u.llxy.flags; if (v > 0) { if (flags & GT_OK_IN_CMP) { PREG = NEXTOP(PREG, llxy); JMPNext(); } else { PREG = PREG->u.llxy.f; JMPNext(); } } else if (v < 0) { if (flags & LT_OK_IN_CMP) { PREG = NEXTOP(PREG, llxy); JMPNext(); } else { PREG = PREG->u.llxy.f; JMPNext(); } } else /* if (v == 0) */ { if (flags & EQ_OK_IN_CMP) { PREG = NEXTOP(PREG, llxy); JMPNext(); } else { PREG = PREG->u.llxy.f; JMPNext(); } } } exec_bin_cmp_xy: { CmpPredicate f = PREG->u.llxy.p->cs.d_code; saveregs(); d0 = (CELL) (f) (d0,d1); setregs(); } if (!d0) { if (PREG != FAILCODE) PREG = PREG->u.llxy.f; JMPNext(); } PREG = NEXTOP(PREG, llxy); JMPNext(); BEGP(pt0); deref_body(d0, pt0, call_bfunc_xy_unk, call_bfunc_xy_nvar); d1 = Deref(d1); goto exec_bin_cmp_xy; ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, call_bfunc_xy2_unk, call_bfunc_xy2_nvar); goto exec_bin_cmp_xy; ENDP(pt0); ENDD(d1); ENDD(d0); ENDBOp(); BOp(call_bfunc_yy, llyy); BEGD(d0); BEGD(d1); BEGP(pt0); pt0 = YREG + PREG->u.llyy.y1; BEGP(pt1); pt1 = YREG + PREG->u.llyy.y2; d0 = *pt0; d1 = *pt1; ENDP(pt1); ENDP(pt0); deref_head(d0, call_bfunc_yy_unk); call_bfunc_yy_nvar: deref_head(d1, call_bfunc_yy2_unk); call_bfunc_yy2_nvar: if (IsIntTerm(d0) && IsIntTerm(d1)) { int flags; Int v = IntOfTerm(d0) - IntOfTerm(d1); flags = PREG->u.llyy.flags; if (v > 0) { if (flags & GT_OK_IN_CMP) { PREG = NEXTOP(PREG, llyy); JMPNext(); } else { PREG = PREG->u.llyy.f; JMPNext(); } } else if (v < 0) { if (flags & LT_OK_IN_CMP) { PREG = NEXTOP(PREG, llyy); JMPNext(); } else { PREG = PREG->u.llyy.f; JMPNext(); } } else /* if (v == 0) */ { if (flags & EQ_OK_IN_CMP) { PREG = NEXTOP(PREG, llyy); JMPNext(); } else { PREG = PREG->u.llyy.f; JMPNext(); } } } exec_bin_cmp_yy: { CmpPredicate f = PREG->u.llyy.p->cs.d_code; saveregs(); d0 = (CELL) (f) (d0,d1); } setregs(); if (!d0) { if (PREG != FAILCODE) PREG = PREG->u.llyy.f; JMPNext(); } PREG = NEXTOP(PREG, llyy); JMPNext(); BEGP(pt0); deref_body(d0, pt0, call_bfunc_yy_unk, call_bfunc_yy_nvar); d1 = Deref(d1); goto exec_bin_cmp_yy; ENDP(pt0); BEGP(pt0); deref_body(d1, pt0, call_bfunc_yy2_unk, call_bfunc_yy2_nvar); goto exec_bin_cmp_yy; ENDP(pt0); ENDD(d1); ENDD(d0); ENDBOp(); Op(p_equal, e); save_hb(); if (Yap_IUnify(ARG1, ARG2) == FALSE) { FAIL(); } PREG = NEXTOP(PREG, e); GONext(); ENDOp(); Op(p_dif, l); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("\\="),2),0)),XREGS+1); #endif /* LOW_LEVEL_TRACE */ BEGD(d0); BEGD(d1); d0 = ARG1; deref_head(d0, dif_unk1); dif_nvar1: /* first argument is bound */ d1 = ARG2; deref_head(d1, dif_nvar1_unk2); dif_nvar1_nvar2: /* both arguments are bound */ if (d0 == d1) { PREG = PREG->u.l.l; GONext(); } if (IsAtomOrIntTerm(d0) || IsAtomOrIntTerm(d1)) { PREG = NEXTOP(PREG, l); GONext(); } { #ifdef COROUTINING /* * We may wake up goals during our attempt to unify the * two terms. If we are adding to the tail of a list of * woken goals that should be ok, but otherwise we need * to restore WokenGoals to its previous value. */ CELL OldWokenGoals = Yap_ReadTimedVar(WokenGoals); #endif /* We will have to look inside compound terms */ register tr_fr_ptr pt0; /* store the old value of TR for clearing bindings */ pt0 = TR; BEGCHO(pt1); pt1 = B; /* make B and HB point to H to guarantee all bindings will * be trailed */ HBREG = H; B = (choiceptr) H; SET_BB(B); save_hb(); if (Yap_IUnify(d0, d1)) { /* restore B, no need to restore HB */ PREG = PREG->u.l.l; B = pt1; #ifdef COROUTINING /* now restore Woken Goals to its old value */ Yap_UpdateTimedVar(WokenGoals, OldWokenGoals); if (OldWokenGoals == TermNil) { Yap_undo_signal(YAP_WAKEUP_SIGNAL); } #endif GONext(); } /* restore B, and later HB */ PREG = NEXTOP(PREG, l); B = pt1; SET_BB(PROTECT_FROZEN_B(pt1)); ENDCHO(pt1); /* untrail all bindings made by Yap_IUnify */ while (TR != pt0) { BEGD(d1); d1 = TrailTerm(--TR); if (IsVarTerm(d1)) { #if defined(SBA) && defined(YAPOR) /* clean up the trail when we backtrack */ if (Unsigned((Int)(d1)-(Int)(H_FZ)) > Unsigned((Int)(B_FZ)-(Int)(H_FZ))) { RESET_VARIABLE(STACK_TO_SBA(d1)); } else #endif /* normal variable */ RESET_VARIABLE(d1); #ifdef MULTI_ASSIGNMENT_VARIABLES } else /* if (IsApplTerm(d1)) */ { CELL *pt = RepAppl(d1); /* AbsAppl means */ /* multi-assignment variable */ /* so the next cell is the old value */ #ifdef FROZEN_STACKS pt[0] = TrailVal(--TR); #else pt[0] = TrailTerm(--TR); TR--; #endif /* FROZEN_STACKS */ #endif /* MULTI_ASSIGNMENT_VARIABLES */ } ENDD(d1); } HBREG = B->cp_h; #ifdef COROUTINING /* now restore Woken Goals to its old value */ Yap_UpdateTimedVar(WokenGoals, OldWokenGoals); if (OldWokenGoals == TermNil) { Yap_undo_signal(YAP_WAKEUP_SIGNAL); } #endif } GONext(); BEGP(pt0); deref_body(d0, pt0, dif_unk1, dif_nvar1); ENDP(pt0); /* first argument is unbound */ PREG = PREG->u.l.l; GONext(); BEGP(pt0); deref_body(d1, pt0, dif_nvar1_unk2, dif_nvar1_nvar2); ENDP(pt0); /* second argument is unbound */ PREG = PREG->u.l.l; GONext(); ENDD(d1); ENDD(d0); ENDOp(); Op(p_eq, l); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("=="),2),0)),XREGS+1); #endif /* LOW_LEVEL_TRACE */ BEGD(d0); BEGD(d1); d0 = ARG1; deref_head(d0, p_eq_unk1); p_eq_nvar1: /* first argument is bound */ d1 = ARG2; deref_head(d1, p_eq_nvar1_unk2); p_eq_nvar1_nvar2: /* both arguments are bound */ if (d0 == d1) { PREG = NEXTOP(PREG, l); GONext(); } if (IsPairTerm(d0)) { if (!IsPairTerm(d1)) { PREG = PREG->u.l.l; GONext(); } BEGD(d2); always_save_pc(); d2 = iequ_complex(RepPair(d0)-1, RepPair(d0)+1,RepPair(d1)-1); if (d2 == FALSE) { PREG = PREG->u.l.l; GONext(); } ENDD(d2); always_set_pc(); PREG = NEXTOP(PREG, l); GONext(); } if (IsApplTerm(d0)) { Functor f0 = FunctorOfTerm(d0); Functor f1; /* f1 must be a compound term, even if it is a suspension */ if (!IsApplTerm(d1)) { PREG = PREG->u.l.l; GONext(); } f1 = FunctorOfTerm(d1); /* we now know f1 is true */ /* deref if a compound term */ if (IsExtensionFunctor(f0)) { switch ((CELL)f0) { case (CELL)FunctorDBRef: if (d0 == d1) { PREG = NEXTOP(PREG, l); GONext(); } PREG = PREG->u.l.l; GONext(); case (CELL)FunctorLongInt: if (f1 != FunctorLongInt) { PREG = PREG->u.l.l; GONext(); } if (LongIntOfTerm(d0) == LongIntOfTerm(d1)) { PREG = NEXTOP(PREG, l); GONext(); } PREG = PREG->u.l.l; GONext(); #ifdef USE_GMP case (CELL)FunctorBigInt: if (f1 != FunctorBigInt) { PREG = PREG->u.l.l; GONext(); } if (mpz_cmp(Yap_BigIntOfTerm(d0), Yap_BigIntOfTerm(d1)) == 0) { PREG = NEXTOP(PREG, l); GONext(); } PREG = PREG->u.l.l; GONext(); #endif case (CELL)FunctorDouble: if (f1 != FunctorDouble) { PREG = PREG->u.l.l; GONext(); } if (FloatOfTerm(d0) == FloatOfTerm(d1)) { PREG = NEXTOP(PREG, l); GONext(); } default: PREG = PREG->u.l.l; GONext(); } } if (f0 != f1) { PREG = PREG->u.l.l; GONext(); } always_save_pc(); BEGD(d2); d2 = iequ_complex(RepAppl(d0), RepAppl(d0)+ArityOfFunctor(f0), RepAppl(d1)); if (d2 == FALSE) { PREG = PREG->u.l.l; GONext(); } ENDD(d2); PREG = NEXTOP(PREG, l); always_set_pc(); GONext(); } PREG = PREG->u.l.l; GONext(); BEGP(pt0); deref_body(d1, pt0, p_eq_nvar1_unk2, p_eq_nvar1_nvar2); ENDP(pt0); /* first argument is bound */ /* second argument is unbound */ /* I don't need to worry about co-routining because an unbound variable may never be == to a constrained variable!! */ PREG = PREG->u.l.l; GONext(); ENDD(d1); BEGP(pt0); deref_body(d0, pt0, p_eq_unk1, p_eq_nvar1); BEGD(d1); d1 = ARG2; deref_head(d1, p_eq_var1_unk2); p_eq_var1_nvar2: /* I don't need to worry about co-routining because an unbound variable may never be == to a constrained variable!! */ PREG = PREG->u.l.l; GONext(); BEGP(pt1); deref_body(d1, pt1, p_eq_var1_unk2, p_eq_var1_nvar2); /* first argument is unbound */ /* second argument is unbound */ if (pt1 != pt0) { PREG = PREG->u.l.l; GONext(); } PREG = NEXTOP(PREG, l); GONext(); ENDP(pt1); ENDD(d1); ENDP(pt0); ENDD(d0); ENDOp(); Op(p_arg_vv, xxx); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { H[0] = XREG(PREG->u.xxx.x1); H[1] = XREG(PREG->u.xxx.x2); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("arg"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = XREG(PREG->u.xxx.x1); deref_head(d0, arg_arg1_unk); arg_arg1_nvar: /* ARG1 is ok! */ if (IsIntTerm(d0)) d0 = IntOfTerm(d0); else if (IsLongIntTerm(d0)) { d0 = LongIntOfTerm(d0); } else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,d0,"arg 1 of arg/3"); setregs(); FAIL(); } /* d0 now got the argument we want */ BEGD(d1); d1 = XREG(PREG->u.xxx.x2); deref_head(d1, arg_arg2_unk); arg_arg2_nvar: /* d1 now got the structure we want to fetch the argument * from */ if (IsApplTerm(d1)) { BEGP(pt0); pt0 = RepAppl(d1); d1 = *pt0; if (IsExtensionFunctor((Functor) d1)) { FAIL(); } if ((Int)d0 <= 0 || (Int)d0 > ArityOfFunctor((Functor) d1)) { /* don't complain here for Prolog compatibility if ((Int)d0 <= 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } */ FAIL(); } XREG(PREG->u.xxx.x) = pt0[d0]; PREG = NEXTOP(PREG, xxx); GONext(); ENDP(pt0); } else if (IsPairTerm(d1)) { BEGP(pt0); pt0 = RepPair(d1); if (d0 != 1 && d0 != 2) { if ((Int)d0 < 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } FAIL(); } XREG(PREG->u.xxx.x) = pt0[d0-1]; PREG = NEXTOP(PREG, xxx); GONext(); ENDP(pt0); } else { saveregs(); Yap_Error(TYPE_ERROR_COMPOUND, d1, "arg 2 of arg/3"); setregs(); FAIL(); } BEGP(pt0); deref_body(d1, pt0, arg_arg2_unk, arg_arg2_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1,"arg 2 of arg/3");; setregs(); ENDP(pt0); FAIL(); ENDD(d1); BEGP(pt0); deref_body(d0, pt0, arg_arg1_unk, arg_arg1_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "arg 1 of arg/3");; setregs(); ENDP(pt0); FAIL(); ENDD(d0); ENDOp(); Op(p_arg_cv, xxc); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { CELL *Ho = H; Term t = MkIntegerTerm(PREG->u.xxc.c); H[0] = t; H[1] = XREG(PREG->u.xxc.xi); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("arg"),3),0)),H); H = Ho; } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = PREG->u.xxc.c; /* d0 now got the argument we want */ BEGD(d1); d1 = XREG(PREG->u.xxc.xi); deref_head(d1, arg_arg2_vc_unk); arg_arg2_vc_nvar: /* d1 now got the structure we want to fetch the argument * from */ if (IsApplTerm(d1)) { BEGP(pt0); pt0 = RepAppl(d1); d1 = *pt0; if (IsExtensionFunctor((Functor) d1)) { FAIL(); } if ((Int)d0 <= 0 || (Int)d0 > ArityOfFunctor((Functor) d1)) { /* don't complain here for Prolog compatibility if ((Int)d0 <= 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } */ FAIL(); } XREG(PREG->u.xxc.x) = pt0[d0]; PREG = NEXTOP(PREG, xxc); GONext(); ENDP(pt0); } else if (IsPairTerm(d1)) { BEGP(pt0); pt0 = RepPair(d1); if (d0 != 1 && d0 != 2) { if ((Int)d0 < 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } FAIL(); } XREG(PREG->u.xxc.x) = pt0[d0-1]; PREG = NEXTOP(PREG, xxc); GONext(); ENDP(pt0); } else { saveregs(); Yap_Error(TYPE_ERROR_COMPOUND, d1, "arg 2 of arg/3"); setregs(); FAIL(); } BEGP(pt0); deref_body(d1, pt0, arg_arg2_vc_unk, arg_arg2_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1,"arg 2 of arg/3");; setregs(); ENDP(pt0); FAIL(); ENDD(d1); ENDD(d0); ENDOp(); Op(p_arg_y_vv, yxx); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { H[0] = XREG(PREG->u.yxx.x1); H[1] = XREG(PREG->u.yxx.x2); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("arg"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = XREG(PREG->u.yxx.x1); deref_head(d0, arg_y_arg1_unk); arg_y_arg1_nvar: /* ARG1 is ok! */ if (IsIntTerm(d0)) d0 = IntOfTerm(d0); else if (IsLongIntTerm(d0)) { d0 = LongIntOfTerm(d0); } else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,d0,"arg 1 of arg/3"); setregs(); FAIL(); } /* d0 now got the argument we want */ BEGD(d1); d1 = XREG(PREG->u.yxx.x2); deref_head(d1, arg_y_arg2_unk); arg_y_arg2_nvar: /* d1 now got the structure we want to fetch the argument * from */ if (IsApplTerm(d1)) { BEGP(pt0); pt0 = RepAppl(d1); d1 = *pt0; if (IsExtensionFunctor((Functor) d1)) { FAIL(); } if ((Int)d0 <= 0 || (Int)d0 > ArityOfFunctor((Functor) d1)) { /* don't complain here for Prolog compatibility if ((Int)d0 <= 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); saveregs(); } */ FAIL(); } BEGP(pt1); pt1 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,pt0[d0]); #else *pt1 = pt0[d0]; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); ENDP(pt0); } else if (IsPairTerm(d1)) { BEGP(pt0); pt0 = RepPair(d1); if (d0 != 1 && d0 != 2) { if ((Int)d0 < 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } FAIL(); } BEGP(pt1); pt1 = YREG + PREG->u.yxx.y; PREG = NEXTOP(PREG, yxx); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,pt0[d0-1]); #else *pt1 = pt0[d0-1]; #endif /* SBA && FROZEN_STACKS */ GONext(); ENDP(pt1); ENDP(pt0); } else { saveregs(); Yap_Error(TYPE_ERROR_COMPOUND, d1, "arg 2 of arg/3"); setregs(); FAIL(); } BEGP(pt0); deref_body(d1, pt0, arg_y_arg2_unk, arg_y_arg2_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1,"arg 2 of arg/3");; setregs(); ENDP(pt0); FAIL(); ENDD(d1); BEGP(pt0); deref_body(d0, pt0, arg_y_arg1_unk, arg_y_arg1_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "arg 1 of arg/3");; setregs(); ENDP(pt0); FAIL(); ENDD(d0); ENDOp(); Op(p_arg_y_cv, xxc); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { CELL *Ho = H; Term t = MkIntegerTerm(PREG->u.yxc.c); H[0] = t; H[1] = XREG(PREG->u.yxc.xi); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("arg"),3),0)),H); H = Ho; } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = PREG->u.yxc.c; /* d0 now got the argument we want */ BEGD(d1); d1 = XREG(PREG->u.yxc.xi); deref_head(d1, arg_y_arg2_vc_unk); arg_y_arg2_vc_nvar: /* d1 now got the structure we want to fetch the argument * from */ if (IsApplTerm(d1)) { BEGP(pt0); pt0 = RepAppl(d1); d1 = *pt0; if (IsExtensionFunctor((Functor) d1)) { FAIL(); } if ((Int)d0 <= 0 || (Int)d0 > ArityOfFunctor((Functor) d1)) { /* don't complain here for Prolog compatibility if ((Int)d0 <= 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } */ FAIL(); } BEGP(pt1); pt1 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,pt0[d0]); #else *pt1 = pt0[d0]; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); ENDP(pt0); } else if (IsPairTerm(d1)) { BEGP(pt0); pt0 = RepPair(d1); if (d0 != 1 && d0 != 2) { if ((Int)d0 < 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(d0),"arg 1 of arg/3"); setregs(); } FAIL(); } BEGP(pt1); pt1 = YREG + PREG->u.yxc.y; PREG = NEXTOP(PREG, yxc); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,pt0[d0-1]); #else *pt1 = pt0[d0-1]; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); ENDP(pt0); } else { saveregs(); Yap_Error(TYPE_ERROR_COMPOUND, d1, "arg 2 of arg/3"); setregs(); FAIL(); } BEGP(pt0); deref_body(d1, pt0, arg_y_arg2_vc_unk, arg_y_arg2_vc_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1,"arg 2 of arg/3");; setregs(); ENDP(pt0); FAIL(); ENDD(d1); ENDD(d0); ENDOp(); Op(p_func2s_vv, xxx); /* A1 is a variable */ restart_func2s: #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { RESET_VARIABLE(H); H[1] = XREG(PREG->u.xxx.x1); H[2] = XREG(PREG->u.xxx.x2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ /* We have to build the structure */ BEGD(d0); d0 = XREG(PREG->u.xxx.x1); deref_head(d0, func2s_unk); func2s_nvar: /* we do, let's get the third argument */ BEGD(d1); d1 = XREG(PREG->u.xxx.x2); deref_head(d1, func2s_unk2); func2s_nvar2: /* Uuuff, the second and third argument are bound */ if (IsIntegerTerm(d1)) d1 = IntegerOfTerm(d1); else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,d1,"functor/3"); setregs(); FAIL(); } if (!IsAtomicTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxx),sla),l); GONext(); } else if ((Int)d1 > 0) { /* now let's build a compound term */ if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } BEGP(pt1); if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(0, YREG, NEXTOP(NEXTOP(PREG,xxx),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_func2s; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } H = pt1; /* done building the term */ ENDP(pt1); /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxx),sla),l); GONext(); } else if ((Int)d1 == 0) { XREG(PREG->u.xxx.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxx),sla),l); GONext(); } else { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,MkIntegerTerm(d1),"functor/3"); setregs(); FAIL(); } BEGP(pt1); deref_body(d1, pt1, func2s_unk2, func2s_nvar2); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1, "functor/3"); setregs(); ENDP(pt1); /* Oops, third argument was unbound */ FAIL(); ENDD(d1); BEGP(pt1); deref_body(d0, pt1, func2s_unk, func2s_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2s_cv, xcx); /* A1 is a variable */ restart_func2s_cv: #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { RESET_VARIABLE(H); H[1] = PREG->u.xcx.c; H[2] = XREG(PREG->u.xcx.xi); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); /* We have to build the structure */ d0 = PREG->u.xcx.c; /* we do, let's get the third argument */ BEGD(d1); d1 = XREG(PREG->u.xcx.xi); deref_head(d1, func2s_unk2_cv); func2s_nvar2_cv: /* Uuuff, the second and third argument are bound */ if (IsIntegerTerm(d1)) d1 = IntegerOfTerm(d1); else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,d1,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ XREG(PREG->u.xcx.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xcx),sla),l); GONext(); } else if ((Int)d1 > 0) { /* now let's build a compound term */ if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } BEGP(pt1); if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(0, YREG, NEXTOP(NEXTOP(PREG,xcx),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_func2s_cv; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } /* done building the term */ H = pt1; ENDP(pt1); /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ XREG(PREG->u.xcx.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xcx),sla),l); GONext(); } else if (d1 == 0) { XREG(PREG->u.xcx.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xcx),sla),l); GONext(); } else { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,MkIntegerTerm(d1),"functor/3"); setregs(); FAIL(); } BEGP(pt1); deref_body(d1, pt1, func2s_unk2_cv, func2s_nvar2_cv); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1, "functor/3"); setregs(); ENDP(pt1); /* Oops, third argument was unbound */ FAIL(); ENDD(d1); ENDD(d0); ENDOp(); Op(p_func2s_vc, xxc); /* A1 is a variable */ restart_func2s_vc: #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { Term ti; CELL *hi = H; ti = MkIntegerTerm((Int)(PREG->u.xxc.c)); RESET_VARIABLE(H); H[1] = XREG(PREG->u.xxc.xi); H[2] = ti; low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); H = hi; } #endif /* LOW_LEVEL_TRACE */ /* We have to build the structure */ BEGD(d0); d0 = XREG(PREG->u.xxc.xi); deref_head(d0, func2s_unk_vc); func2s_nvar_vc: BEGD(d1); d1 = PREG->u.xxc.c; if (!IsAtomicTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxc),sla),l); GONext(); } /* now let's build a compound term */ if (d1 == 0) { XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxc),sla),l); GONext(); } if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } BEGP(pt1); if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(0, YREG, NEXTOP(NEXTOP(PREG,xxc),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_func2s_vc; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } /* done building the term */ H = pt1; ENDP(pt1); ENDD(d1); /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ XREG(PREG->u.xxc.x) = d0; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxc),sla),l); GONext(); BEGP(pt1); deref_body(d0, pt1, func2s_unk_vc, func2s_nvar_vc); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2s_y_vv, yxx); /* A1 is a variable */ restart_func2s_y: #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { RESET_VARIABLE(H); H[1] = XREG(PREG->u.yxx.x1); H[2] = XREG(PREG->u.yxx.x2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ /* We have to build the structure */ BEGD(d0); d0 = XREG(PREG->u.yxx.x1); deref_head(d0, func2s_y_unk); func2s_y_nvar: /* we do, let's get the third argument */ BEGD(d1); d1 = XREG(PREG->u.yxx.x2); deref_head(d1, func2s_y_unk2); func2s_y_nvar2: /* Uuuff, the second and third argument are bound */ if (IsIntegerTerm(d1)) d1 = IntegerOfTerm(d1); else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,d1,"functor/3"); setregs(); FAIL(); } if (!IsAtomicTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; BEGP(pt1); pt1 = YREG + PREG->u.yxx.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, yxx),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } else if ((Int)d1 > 0) { /* now let's build a compound term */ if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } BEGP(pt1); if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(0, YREG, NEXTOP(NEXTOP(PREG,yxx),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_func2s_y; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } /* done building the term */ H = pt1; ENDP(pt1); /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ BEGP(pt1); pt1 = YREG + PREG->u.yxx.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, yxx),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } else if (d1 == 0) { BEGP(pt1); pt1 = YREG + PREG->u.yxx.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, yxx),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } else { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,MkIntegerTerm(d1),"functor/3"); setregs(); FAIL(); } BEGP(pt1); deref_body(d1, pt1, func2s_y_unk2, func2s_y_nvar2); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1, "functor/3"); setregs(); ENDP(pt1); /* Oops, third argument was unbound */ FAIL(); ENDD(d1); BEGP(pt1); deref_body(d0, pt1, func2s_y_unk, func2s_y_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2s_y_cv, ycx); /* A1 is a variable */ restart_func2s_y_cv: #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { RESET_VARIABLE(H); H[1] = PREG->u.ycx.c; H[2] = XREG(PREG->u.ycx.xi); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ /* We have to build the structure */ BEGD(d0); d0 = PREG->u.ycx.c; /* we do, let's get the third argument */ BEGD(d1); d1 = XREG(PREG->u.ycx.xi); deref_head(d1, func2s_y_unk_cv); func2s_y_nvar_cv: /* Uuuff, the second and third argument are bound */ if (IsIntegerTerm(d1)) { d1 = IntegerOfTerm(d1); } else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,d1,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ BEGP(pt1); pt1 = YREG + PREG->u.ycx.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, ycx),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } else if ((Int)d1 > 0) { /* now let's build a compound term */ if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); BEGP(pt1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(0, YREG, NEXTOP(NEXTOP(PREG,ycx),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_func2s_y_cv; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } /* done building the term */ H = pt1; ENDP(pt1); /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ BEGP(pt1); pt1 = YREG + PREG->u.ycx.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, ycx),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } else if (d1 == 0) { BEGP(pt1); pt1 = YREG + PREG->u.ycx.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, ycx),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } else { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,MkIntegerTerm(d1),"functor/3"); setregs(); FAIL(); } BEGP(pt1); deref_body(d1, pt1, func2s_y_unk_cv, func2s_y_nvar_cv); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1, "functor/3"); setregs(); ENDP(pt1); /* Oops, third argument was unbound */ FAIL(); ENDD(d1); ENDD(d0); ENDOp(); Op(p_func2s_y_vc, yxc); /* A1 is a variable */ restart_func2s_y_vc: #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { Term ti; CELL *hi = H; ti = MkIntegerTerm((Int)(PREG->u.yxc.c)); RESET_VARIABLE(H); H[1] = XREG(PREG->u.yxc.xi); H[2] = ti; low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); H = hi; } #endif /* LOW_LEVEL_TRACE */ /* We have to build the structure */ BEGD(d0); d0 = XREG(PREG->u.yxc.xi); deref_head(d0, func2s_y_unk_vc); func2s_y_nvar_vc: BEGD(d1); d1 = PREG->u.yxc.c; if (!IsAtomicTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ BEGP(pt1); pt1 = YREG + PREG->u.yxc.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, yxc),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } if (d1 == 0) { BEGP(pt1); pt1 = YREG + PREG->u.yxc.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, yxc),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); GONext(); } if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } /* now let's build a compound term */ if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } BEGP(pt1); if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(0, YREG, NEXTOP(NEXTOP(PREG,yxc),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_func2s_y_vc; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } /* done building the term */ H = pt1; ENDP(pt1); /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ BEGP(pt1); pt1 = YREG + PREG->u.yxc.y; PREG = NEXTOP(NEXTOP(NEXTOP(PREG, yxc),sla),l); #if defined(SBA) && defined(FROZEN_STACKS) Bind_Local(pt1,d0); #else *pt1 = d0; #endif /* SBA && FROZEN_STACKS */ ENDP(pt1); ENDD(d1); GONext(); BEGP(pt1); deref_body(d0, pt1, func2s_y_unk_vc, func2s_y_nvar_vc); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2f_xx, xxx); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { H[0] = XREG(PREG->u.xxx.x); RESET_VARIABLE(H+1); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = XREG(PREG->u.xxx.x); deref_head(d0, func2f_xx_unk); func2f_xx_nvar: if (IsApplTerm(d0)) { Functor d1 = FunctorOfTerm(d0); if (IsExtensionFunctor(d1)) { XREG(PREG->u.xxx.x1) = d0; XREG(PREG->u.xxx.x2) = MkIntTerm(0); PREG = NEXTOP(PREG, xxx); GONext(); } XREG(PREG->u.xxx.x1) = MkAtomTerm(NameOfFunctor(d1)); XREG(PREG->u.xxx.x2) = MkIntegerTerm(ArityOfFunctor(d1)); PREG = NEXTOP(PREG, xxx); GONext(); } else if (IsPairTerm(d0)) { XREG(PREG->u.xxx.x1) = TermDot; XREG(PREG->u.xxx.x2) = MkIntTerm(2); PREG = NEXTOP(PREG, xxx); GONext(); } else { XREG(PREG->u.xxx.x1) = d0; XREG(PREG->u.xxx.x2) = MkIntTerm(0); PREG = NEXTOP(PREG, xxx); GONext(); } BEGP(pt1); deref_body(d0, pt1, func2f_xx_unk, func2f_xx_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2f_xy, xyx); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { H[0] = XREG(PREG->u.xyx.x); RESET_VARIABLE(H+1); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = XREG(PREG->u.xyx.x); deref_head(d0, func2f_xy_unk); func2f_xy_nvar: if (IsApplTerm(d0)) { Functor d1 = FunctorOfTerm(d0); CELL *pt0 = YREG+PREG->u.xyx.y2; if (IsExtensionFunctor(d1)) { XREG(PREG->u.xyx.x1) = d0; PREG = NEXTOP(PREG, xyx); *pt0 = MkIntTerm(0); GONext(); } XREG(PREG->u.xyx.x1) = MkAtomTerm(NameOfFunctor(d1)); PREG = NEXTOP(PREG, xyx); *pt0 = MkIntegerTerm(ArityOfFunctor(d1)); GONext(); } else if (IsPairTerm(d0)) { CELL *pt0 = YREG+PREG->u.xyx.y2; XREG(PREG->u.xyx.x1) = TermDot; PREG = NEXTOP(PREG, xyx); *pt0 = MkIntTerm(2); GONext(); } else { CELL *pt0 = YREG+PREG->u.xyx.y2; XREG(PREG->u.xyx.x1) = d0; PREG = NEXTOP(PREG, xyx); *pt0 = MkIntTerm(0); GONext(); } BEGP(pt1); deref_body(d0, pt1, func2f_xy_unk, func2f_xy_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2f_yx, yxx); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { H[0] = XREG(PREG->u.yxx.x2); RESET_VARIABLE(H+1); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = XREG(PREG->u.yxx.x2); deref_head(d0, func2f_yx_unk); func2f_yx_nvar: if (IsApplTerm(d0)) { Functor d1 = FunctorOfTerm(d0); CELL *pt0 = YREG+PREG->u.yxx.y; if (IsExtensionFunctor(d1)) { XREG(PREG->u.yxx.x1) = MkIntTerm(0); PREG = NEXTOP(PREG, yxx); *pt0 = d0; GONext(); } XREG(PREG->u.yxx.x1) = MkIntegerTerm(ArityOfFunctor(d1)); PREG = NEXTOP(PREG, yxx); *pt0 = MkAtomTerm(NameOfFunctor(d1)); GONext(); } else if (IsPairTerm(d0)) { CELL *pt0 = YREG+PREG->u.yxx.y; XREG(PREG->u.yxx.x1) = MkIntTerm(2); PREG = NEXTOP(PREG, yxx); *pt0 = TermDot; GONext(); } else { CELL *pt0 = YREG+PREG->u.yxx.y; XREG(PREG->u.yxx.x1) = MkIntTerm(0); PREG = NEXTOP(PREG, yxx); *pt0 = d0; GONext(); } BEGP(pt1); deref_body(d0, pt1, func2f_yx_unk, func2f_yx_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_func2f_yy, yyx); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) { H[0] = XREG(PREG->u.yyx.x); RESET_VARIABLE(H+1); RESET_VARIABLE(H+2); low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),H); } #endif /* LOW_LEVEL_TRACE */ BEGD(d0); d0 = XREG(PREG->u.yyx.x); deref_head(d0, func2f_yy_unk); func2f_yy_nvar: if (IsApplTerm(d0)) { Functor d1 = FunctorOfTerm(d0); CELL *pt0 = YREG+PREG->u.yyx.y1; CELL *pt1 = YREG+PREG->u.yyx.y2; if (IsExtensionFunctor(d1)) { PREG = NEXTOP(PREG, yyx); *pt0 = d0; *pt1 = MkIntTerm(0); GONext(); } PREG = NEXTOP(PREG, yyx); *pt0 = MkAtomTerm(NameOfFunctor(d1)); *pt1 = MkIntegerTerm(ArityOfFunctor(d1)); GONext(); } else if (IsPairTerm(d0)) { CELL *pt0 = YREG+PREG->u.yyx.y1; CELL *pt1 = YREG+PREG->u.yyx.y2; PREG = NEXTOP(PREG, yyx); *pt0 = TermDot; *pt1 = MkIntTerm(2); GONext(); } else { CELL *pt0 = YREG+PREG->u.yyx.y1; CELL *pt1 = YREG+PREG->u.yyx.y2; PREG = NEXTOP(PREG, yyx); *pt0 = d0; *pt1 = MkIntTerm(0); GONext(); } BEGP(pt1); deref_body(d0, pt1, func2f_yy_unk, func2f_yy_nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDD(d0); ENDOp(); Op(p_functor, e); #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,RepPredProp(Yap_GetPredPropByFunc(Yap_MkFunctor(Yap_LookupAtom("functor"),3),0)),XREGS+1); #endif /* LOW_LEVEL_TRACE */ restart_functor: BEGD(d0); d0 = ARG1; deref_head(d0, func_unk); func_nvar: /* A1 is bound */ BEGD(d1); if (IsApplTerm(d0)) { d1 = *RepAppl(d0); if (IsExtensionFunctor((Functor) d1)) { if (d1 <= (CELL)FunctorDouble && d1 >= (CELL)FunctorLongInt ) { d1 = MkIntTerm(0); } else FAIL(); } else { d0 = MkAtomTerm(NameOfFunctor((Functor) d1)); d1 = MkIntTerm(ArityOfFunctor((Functor) d1)); } } else if (IsPairTerm(d0)) { d0 = TermDot; d1 = MkIntTerm(2); } else { d1 = MkIntTerm(0); } /* d1 and d0 now have the two arguments */ /* let's go and bind them */ { register CELL arity = d1; d1 = ARG2; deref_head(d1, func_nvar_unk); func_nvar_nvar: /* A2 was bound */ if (d0 != d1) { FAIL(); } /* I have to this here so that I don't have a jump to a closing bracket */ d0 = arity; goto func_bind_x3; BEGP(pt0); deref_body(d1, pt0, func_nvar_unk, func_nvar_nvar); /* A2 is a variable, go and bind it */ BIND(pt0, d0, bind_func_nvar_var); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_func_nvar_var: #endif /* I have to this here so that I don't have a jump to a closing bracket */ d0 = arity; ENDP(pt0); func_bind_x3: /* now let's process A3 */ d1 = ARG3; deref_head(d1, func_nvar3_unk); func_nvar3_nvar: /* A3 was bound */ if (d0 != d1) { FAIL(); } /* Done */ PREG = NEXTOP(NEXTOP(NEXTOP(PREG, e),sla),l); GONext(); BEGP(pt0); deref_body(d1, pt0, func_nvar3_unk, func_nvar3_nvar); /* A3 is a variable, go and bind it */ PREG = NEXTOP(NEXTOP(NEXTOP(PREG, e),sla),l); BIND(pt0, d0, bind_func_nvar3_var); /* Done */ #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_func_nvar3_var: #endif GONext(); ENDP(pt0); } ENDD(d1); BEGP(pt0); deref_body(d0, pt0, func_unk, func_nvar); /* A1 is a variable */ /* We have to build the structure */ d0 = ARG2; deref_head(d0, func_var_2unk); func_var_2nvar: /* we do, let's get the third argument */ BEGD(d1); d1 = ARG3; deref_head(d1, func_var_3unk); func_var_3nvar: /* Uuuff, the second and third argument are bound */ if (IsIntTerm(d1)) d1 = IntOfTerm(d1); else { saveregs(); Yap_Error(TYPE_ERROR_INTEGER,ARG3,"functor/3"); setregs(); FAIL(); } if (!IsAtomicTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } /* We made it!!!!! we got in d0 the name, in d1 the arity and * in pt0 the variable to bind it to. */ if (d0 == TermDot && d1 == 2) { RESET_VARIABLE(H); RESET_VARIABLE(H+1); d0 = AbsPair(H); H += 2; } else if ((Int)d1 > 0) { /* now let's build a compound term */ if (!IsAtomTerm(d0)) { saveregs(); Yap_Error(TYPE_ERROR_ATOM,d0,"functor/3"); setregs(); FAIL(); } BEGP(pt1); if (!IsAtomTerm(d0)) { FAIL(); } else d0 = (CELL) Yap_MkFunctor(AtomOfTerm(d0), (Int) d1); pt1 = H; *pt1++ = d0; d0 = AbsAppl(H); if (pt1+d1 > ENV || pt1+d1 > (CELL *)B) { /* make sure we have something to show for our trouble */ saveregs(); if (!Yap_gc(3, YREG, NEXTOP(NEXTOP(PREG,e),sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); setregs(); JMPNext(); } else { setregs(); } goto restart_functor; } while ((Int)d1--) { RESET_VARIABLE(pt1); pt1++; } /* done building the term */ H = pt1; ENDP(pt1); } else if ((Int)d1 < 0) { saveregs(); Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,MkIntegerTerm(d1),"functor/3"); setregs(); FAIL(); } /* else if arity is 0 just pass d0 through */ /* Ding, ding, we made it */ PREG = NEXTOP(NEXTOP(NEXTOP(PREG, e),sla),l); BIND(pt0, d0, bind_func_var_3nvar); #ifdef COROUTINING DO_TRAIL(pt0, d0); if (pt0 < H0) Yap_WakeUp(pt0); bind_func_var_3nvar: #endif GONext(); BEGP(pt1); deref_body(d1, pt1, func_var_3unk, func_var_3nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d1, "functor/3"); setregs(); ENDP(pt1); /* Oops, third argument was unbound */ FAIL(); ENDD(d1); BEGP(pt1); deref_body(d0, pt1, func_var_2unk, func_var_2nvar); saveregs(); Yap_Error(INSTANTIATION_ERROR, d0, "functor/3"); setregs(); ENDP(pt1); /* Oops, second argument was unbound too */ FAIL(); ENDP(pt0); ENDD(d0); ENDOp(); BOp(p_execute, sla); { PredEntry *pen; Term mod = PREG->u.sla.sla_u.mod; CACHE_Y_AS_ENV(YREG); /* Try to preserve the environment */ ENV_YREG = (CELL *) (((char *) YREG) + PREG->u.sla.s); #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif /* SBA */ } #else if (ENV_YREG > (CELL *) B) { ENV_YREG = (CELL *) B; } #endif /* FROZEN_STACKS */ BEGD(d0); d0 = ARG1; restart_execute: deref_head(d0, execute_unk); execute_nvar: if (IsApplTerm(d0)) { Functor f = FunctorOfTerm(d0); if (IsExtensionFunctor(f)) { goto execute_metacall; } pen = RepPredProp(PredPropByFunc(f, mod)); if (pen->PredFlags & (MetaPredFlag|GoalExPredFlag)) { if (f == FunctorModule) { Term tmod = ArgOfTerm(1,d0); if (!IsVarTerm(tmod) && IsAtomTerm(tmod)) { d0 = ArgOfTerm(2,d0); mod = tmod; goto execute_nvar; } } else if (f == FunctorComma) { SREG = RepAppl(d0); BEGD(d1); d1 = SREG[2]; /* create an to execute the call */ deref_head(d1, execute_comma_unk); execute_comma_nvar: if (IsAtomTerm(d1)) { ENV_YREG[-EnvSizeInCells-2] = MkIntegerTerm((Int)PredPropByAtom(AtomOfTerm(d1),mod)); ENV_YREG[-EnvSizeInCells-3] = mod; } else if (IsApplTerm(d1)) { Functor f = FunctorOfTerm(d1); if (IsExtensionFunctor(f)) { goto execute_metacall; } else { if (f == FunctorModule) goto execute_metacall; ENV_YREG[-EnvSizeInCells-2] = MkIntegerTerm((Int)PredPropByFunc(f,mod)); ENV_YREG[-EnvSizeInCells-3] = mod; } } else { goto execute_metacall; } ENV_YREG[E_CP] = (CELL)NEXTOP(PREG,sla); ENV_YREG[E_CB] = (CELL)B; ENV_YREG[E_E] = (CELL)ENV; #ifdef DEPTH_LIMIT ENV_YREG[E_DEPTH] = DEPTH; #endif /* DEPTH_LIMIT */ ENV_YREG[-EnvSizeInCells-1] = d1; ENV = ENV_YREG; ENV_YREG -= EnvSizeInCells+3; PREG = COMMA_CODE; d0 = SREG[1]; goto restart_execute; BEGP(pt1); deref_body(d1, pt1, execute_comma_unk, execute_comma_nvar); goto execute_metacall; ENDP(pt1); ENDD(d1); } else if (mod != CurrentModule) { goto execute_metacall; } } if (PRED_GOAL_EXPANSION_ALL) { goto execute_metacall; } BEGP(pt1); pt1 = RepAppl(d0); BEGD(d2); for (d2 = ArityOfFunctor(f); d2; d2--) { #if SBA BEGD(d1); d1 = pt1[d2]; if (d1 == 0) { XREGS[d2] = (CELL)(pt1+d2); } else { XREGS[d2] = d1; } #else XREGS[d2] = pt1[d2]; #endif } ENDD(d2); ENDP(pt1); CACHE_A1(); } else if (IsAtomTerm(d0)) { if (PRED_GOAL_EXPANSION_ALL) { goto execute_metacall; } else { pen = RepPredProp(PredPropByAtom(AtomOfTerm(d0), mod)); } } else { goto execute_metacall; } execute_end: /* code copied from call */ #ifndef NO_CHECKING check_stack(NoStackPExecute, H); #endif CPREG = NEXTOP(PREG, sla); ALWAYS_LOOKAHEAD(pen->OpcodeOfPred); PREG = pen->CodeOfPred; #ifdef DEPTH_LIMIT if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is primitives */ if (pen->ModuleOfPred) { if (DEPTH == MkIntTerm(0)) FAIL(); else DEPTH = RESET_DEPTH(); } } else if (pen->ModuleOfPred) DEPTH -= MkIntConstant(2); #endif /* DEPTH_LIMIT */ #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,pen,XREGS+1); #endif /* LOW_LEVEL_TRACER */ WRITEBACK_Y_AS_ENV(); /* setup GB */ ENV_YREG[E_CB] = (CELL) B; #ifdef YAPOR SCH_check_requests(); #endif /* YAPOR */ CACHE_A1(); ALWAYS_GONext(); ALWAYS_END_PREFETCH(); BEGP(pt1); deref_body(d0, pt1, execute_unk, execute_nvar); execute_metacall: ARG1 = ARG3 = d0; pen = PredMetaCall; ARG2 = Yap_cp_as_integer(B); if (mod) ARG4 = mod; else ARG4 = TermProlog; goto execute_end; ENDP(pt1); ENDD(d0); NoStackPExecute: SREG = (CELL *) pen; ASP = ENV_YREG; /* setup GB */ WRITEBACK_Y_AS_ENV(); YREG[E_CB] = (CELL) B; if (ActiveSignals) { goto creep_pe; } saveregs_and_ycache(); if (!Yap_gc(((PredEntry *)SREG)->ArityOfPE, ENV, NEXTOP(PREG, sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs_and_ycache(); goto execute_end; ENDCACHE_Y_AS_ENV(); } ENDBOp(); creep_pe: /* do creep in call */ CPREG = NEXTOP(PREG, sla); goto creep; BOp(p_execute_tail, sla); { PredEntry *pen; Term mod; UInt arity; CACHE_Y_AS_ENV(YREG); BEGP(pt0); BEGD(d0); d0 = ENV_YREG[-EnvSizeInCells-1]; pen = RepPredProp((Prop)IntegerOfTerm(ENV_YREG[-EnvSizeInCells-2])); CPREG = (yamop *) ENV_YREG[E_CP]; pt0 = ENV_YREG; ENV_YREG = ENV = (CELL *) ENV_YREG[E_E]; #ifdef FROZEN_STACKS { choiceptr top_b = PROTECT_FROZEN_B(B); #ifdef SBA if (ENV_YREG > (CELL *) top_b || ENV_YREG < H) ENV_YREG = (CELL *) top_b; #else if (ENV_YREG > (CELL *) top_b) ENV_YREG = (CELL *) top_b; #endif /* SBA */ else ENV_YREG = (CELL *)((CELL)ENV_YREG + ENV_Size(CPREG)); } #else if (ENV_YREG > (CELL *)B) { ENV_YREG = (CELL *)B; } else { ENV_YREG = (CELL *) ((CELL) ENV_YREG+ ENV_Size(CPREG)); } #endif /* FROZEN_STACKS */ arity = pen->ArityOfPE; if (pen->PredFlags & (MetaPredFlag|GoalExPredFlag)) { mod = pt0[-EnvSizeInCells-3]; if (pen->FunctorOfPred == FunctorComma) { SREG = RepAppl(d0); BEGD(d1); d1 = SREG[2]; execute_comma_comma: /* create an to execute the call */ deref_head(d1, execute_comma_comma_unk); execute_comma_comma_nvar: ENV_YREG[E_CB] = (CELL)pt0[E_CB]; if (IsAtomTerm(d1)) { ENV_YREG[-EnvSizeInCells-2] = MkIntegerTerm((Int)PredPropByAtom(AtomOfTerm(d1),mod)); } else if (IsApplTerm(d1)) { Functor f = FunctorOfTerm(d1); if (IsExtensionFunctor(f)) { goto execute_metacall_after_comma; } else if (f == FunctorModule) { Term tmod = ArgOfTerm(1, d1); if (IsVarTerm(tmod) || !IsAtomTerm(tmod)) goto execute_metacall_after_comma; mod = tmod; d1 = RepAppl(d1)[2]; goto execute_comma_comma; } else { ENV_YREG[-EnvSizeInCells-2] = MkIntegerTerm((Int)PredPropByFunc(f,mod)); } } else { goto execute_metacall_after_comma; } ENV_YREG[E_CP] = (CELL)CPREG; ENV_YREG[E_E] = (CELL)ENV; #ifdef DEPTH_LIMIT ENV_YREG[E_DEPTH] = DEPTH; #endif /* DEPTH_LIMIT */ ENV_YREG[-EnvSizeInCells-1] = d1; ENV_YREG[-EnvSizeInCells-3] = mod; ENV = ENV_YREG; ENV_YREG -= EnvSizeInCells+3; d0 = SREG[1]; CPREG = NEXTOP(COMMA_CODE,sla); execute_comma_comma2: /* create an to execute the call */ deref_head(d0, execute_comma_comma2_unk); execute_comma_comma2_nvar: if (IsAtomTerm(d0)) { Atom at = AtomOfTerm(d0); arity = 0; if (at == AtomCut) { choiceptr cut_pt = (choiceptr)pt0[E_CB]; #ifdef YAPOR CUT_prune_to(cut_pt); #endif /* YAPOR */ /* find where to cut to */ if (SHOULD_CUT_UP_TO(B,cut_pt)) { /* Wow, we're gonna cut!!! */ #ifdef TABLING while (B->cp_b < cut_pt) { B = B->cp_b; } abolish_incomplete_subgoals(B); #endif /* TABLING */ B = cut_pt; HB = PROTECT_FROZEN_H(B); } } pen = RepPredProp(PredPropByAtom(at, mod)); goto execute_comma; } else if (IsApplTerm(d0)) { Functor f = FunctorOfTerm(d0); if (IsExtensionFunctor(f) || f == FunctorModule) { Term tmod = ArgOfTerm(1, d0); if (IsVarTerm(tmod) || !IsAtomTerm(tmod)) goto execute_metacall_after_comma; mod = tmod; d0 = RepAppl(d0)[2]; goto execute_comma_comma2; } else { pen = RepPredProp(PredPropByFunc(f,mod)); if (pen->PredFlags & (MetaPredFlag|GoalExPredFlag)) { goto execute_metacall_after_comma; } arity = pen->ArityOfPE; goto execute_comma; } } else { if (mod != CurrentModule) goto execute_metacall_after_comma; else { arity = pen->ArityOfPE; goto execute_comma; } } BEGP(pt1); deref_body(d0, pt1, execute_comma_comma2_unk, execute_comma_comma2_nvar); goto execute_metacall_after_comma; ENDP(pt1); BEGP(pt1); deref_body(d1, pt1, execute_comma_comma_unk, execute_comma_comma_nvar); goto execute_metacall_after_comma; ENDP(pt1); ENDD(d1); } else { if (mod != CurrentModule) { execute_metacall_after_comma: ARG1 = ARG3 = d0; pen = PredMetaCall; ARG2 = Yap_cp_as_integer((choiceptr)pt0[E_CB]); if (mod) ARG4 = mod; else ARG4 = TermProlog; CACHE_A1(); goto execute_after_comma; } } } execute_comma: if (arity) { BEGP(pt1); pt1 = RepAppl(d0); BEGD(d2); for (d2 = arity; d2; d2--) { #if SBA BEGD(d1); d1 = pt1[d2]; if (d1 == 0) XREGS[d2] = (CELL)(pt1+d2); else XREGS[d2] = d1; #else XREGS[d2] = pt1[d2]; #endif } ENDD(d2); ENDP(pt1); CACHE_A1(); } else if ((Atom)(pen->FunctorOfPred) == AtomCut) { choiceptr cut_pt = (choiceptr)pt0[E_CB]; #ifdef YAPOR CUT_prune_to(cut_pt); #endif /* YAPOR */ /* find where to cut to */ if (SHOULD_CUT_UP_TO(B,cut_pt)) { /* Wow, we're gonna cut!!! */ #ifdef TABLING while (B->cp_b < cut_pt) { B = B->cp_b; } abolish_incomplete_subgoals(B); #endif /* TABLING */ B = cut_pt; HB = PROTECT_FROZEN_H(B); } } execute_after_comma: #ifndef NO_CHECKING check_stack(NoStackPTExecute, H); #endif PREG = pen->CodeOfPred; ALWAYS_LOOKAHEAD(pen->OpcodeOfPred); ENV_YREG[E_CB] = (CELL)B; #ifdef LOW_LEVEL_TRACER if (Yap_do_low_level_trace) low_level_trace(enter_pred,pen,XREGS+1); #endif /* LOW_LEVEL_TRACER */ #ifdef DEPTH_LIMIT if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is primitives */ if (pen->ModuleOfPred) { if (DEPTH == MkIntTerm(0)) FAIL(); else DEPTH = RESET_DEPTH(); } } else if (pen->ModuleOfPred) { DEPTH -= MkIntConstant(2); } #endif /* DEPTH_LIMIT */ /* do deallocate */ WRITEBACK_Y_AS_ENV(); ALWAYS_GONext(); ALWAYS_END_PREFETCH(); ENDD(d0); ENDP(pt0); NoStackPTExecute: WRITEBACK_Y_AS_ENV(); SREG = (CELL *) pen; ASP = ENV_YREG; if (ASP > (CELL *)PROTECT_FROZEN_B(B)) ASP = (CELL *)PROTECT_FROZEN_B(B); LOCK(SignalLock); UNLOCK(SignalLock); if (ActiveSignals & YAP_CDOVF_SIGNAL) { saveregs_and_ycache(); if (!Yap_growheap(FALSE, 0, NULL)) { Yap_Error(OUT_OF_HEAP_ERROR, TermNil, "YAP failed to grow heap: %s", Yap_ErrorMessage); setregs_and_ycache(); FAIL(); } setregs_and_ycache(); LOCK(SignalLock); ActiveSignals &= ~YAP_CDOVF_SIGNAL; CFREG = CalculateStackGap(); UNLOCK(SignalLock); if (!ActiveSignals) { goto execute_after_comma; } } if (ActiveSignals & YAP_TROVF_SIGNAL) { saveregs_and_ycache(); if(!Yap_growtrail (sizeof(CELL) * 16 * 1024L, FALSE)) { Yap_Error(OUT_OF_TRAIL_ERROR,TermNil,"YAP failed to reserve %ld bytes in growtrail",sizeof(CELL) * 16 * 1024L); setregs_and_ycache(); FAIL(); } setregs_and_ycache(); LOCK(SignalLock); ActiveSignals &= ~YAP_TROVF_SIGNAL; CFREG = CalculateStackGap(); UNLOCK(SignalLock); if (!ActiveSignals) { goto execute_after_comma; } } if (ActiveSignals) { if (ActiveSignals & YAP_CDOVF_SIGNAL) { goto noheapleft; } goto creep; } saveregs(); if (!Yap_gc(((PredEntry *)SREG)->ArityOfPE, ENV, NEXTOP(PREG, sla))) { Yap_Error(OUT_OF_STACK_ERROR,TermNil,Yap_ErrorMessage); } setregs(); goto execute_after_comma; ENDCACHE_Y_AS_ENV(); } ENDBOp(); #if !USE_THREADED_CODE default: saveregs(); Yap_Error(SYSTEM_ERROR, MkIntegerTerm(opcode), "trying to execute invalid YAAM instruction %d", opcode); setregs(); FAIL(); } } #endif #if USE_THREADED_CODE #if PUSH_REGS restore_absmi_regs(old_regs); #endif #if BP_FREE P1REG = PCBACKUP; #endif return (0); #endif } int STD_PROTO(Yap_absmiEND,(void)); /* dummy function that is needed for profiler */ int Yap_absmiEND(void) { return 1; }