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e5d7edf852
yap-6.3/C/absmi.c
vsc 944d2e8aed fixes for YapRunGoal 
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@541 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2002-06-18 02:27:53 +00:00

11856 lines
268 KiB
C
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/*************************************************************************
* *
* 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 *
* Last rev: *
* mods: *
* comments: Portable abstract machine interpreter *
* *
*************************************************************************/
#define IN_ABSMI_C 1
#include "absmi.h"
#include "heapgc.h"
#if USE_THREADED_CODE
/* easy access to instruction opcodes */
void **ABSMI_OPCODES;
#endif
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(MkBigIntTerm(v))
#define RERROR() return(TermNil)
#define ArithIEval(t,v) 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)MkFunctor(AtomTrue, tot);
return(AbsAppl(start));
} else {
return(TermNil);
}
}
#endif
Int
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 *Y = REGS.YENV_;
#endif /* SHADOW_Y */
#if SHADOW_S
register CELL *SREG = 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 = &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 = regp;
#endif /* PUSH_REGS */
#if USE_THREADED_CODE
/* absmadr */
if (inp > 0) {
ABSMI_OPCODES = OpAddress;
#if BP_FREE
P1REG = PCBACKUP;
#endif
return(0);
}
#endif /* USE_THREADED_CODE */
reset_absmi:
#if PUSH_REGS
old_regs = &REGS;
/* done, let us now initialise this space */
init_absmi_regs(&absmi_regs);
/* the registers are all set up, let's swap */
regp = &absmi_regs;
#undef REGS
#define REGS absmi_regs
#endif /* PUSH_REGS */
#if SHADOW_REGS
/* use regp as a copy of REGS */
regp = &REGS;
#ifdef REGS
#undef REGS
#endif
#define REGS (*regp)
#endif /* SHADOW_REGS */
setregs();
#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;
#ifdef DEBUG_XX
op_numbers old_op;
unsigned long ops_done;
#endif
goto nextop;
nextop_write:
#ifdef DEBUG_XX
old_op = opcode;
#endif
opcode = PREG->u.o.opcw;
goto op_switch;
nextop:
#ifdef DEBUG_XX
old_op = opcode;
#endif
opcode = PREG->opc;
op_switch:
#ifdef ANALYST
opcount[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,op_names[opcode],op_names[old_op],B,B->cp_h,H);*/
#endif
#endif /* ANALYST */
switch (opcode) {
#endif /* USE_THREADED_CODE */
noheapleft:
CFREG = CalculateStackGap();
saveregs();
#if PUSH_REGS
restore_absmi_regs(old_regs);
#endif
if (!growheap(FALSE)) {
Error(SYSTEM_ERROR, TermNil, "YAP failed to reserve space in growheap");
FAIL();
}
goto reset_absmi;
#if !OS_HANDLES_TR_OVERFLOW
notrailleft:
saveregs();
/* if we are within indexing code, the system may have to
* update a S */
#if SHADOW_S
S = SREG;
#endif
/* Y 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 (Y > (CELL *) B) {
ASP = (CELL *) B;
}
else {
ASP = Y+E_CB;
}
#if PUSH_REGS
restore_absmi_regs(old_regs);
#endif
if(!growtrail (sizeof(CELL) * 16 * 1024L)) {
Error(SYSTEM_ERROR,TermNil,"YAP failed to reserve %ld bytes in growtrail",sizeof(CELL) * 16 * 1024L);
FAIL();
}
goto reset_absmi;
#endif /* OS_HANDLES_TR_OVERFLOW */
BOp(Ystop, e);
if (Y > (CELL *) B) {
ASP = (CELL *) B;
}
else {
ASP = Y;
}
*--ASP = MkIntTerm(0);
saveregs();
#if PUSH_REGS
restore_absmi_regs(old_regs);
#endif
#if BP_FREE
P1REG = PCBACKUP;
#endif
return (1);
ENDBOp();
BOp(Nstop, e);
if (Y > (CELL *) B) {
ASP = (CELL *) B;
}
else {
ASP = Y;
}
*--ASP = MkIntTerm(0);
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();
/* I use Y to go through the choicepoint. Usually Y is in a
* register, but sometimes (X86) not. In this case, have a
* new register to point at Y */
CACHE_Y(Y);
/* 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_Y, B);
/* now, install the new Y */
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
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);
#if defined(SBA) && defined(FROZEN_STACKS)
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
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_Y);
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, 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_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
PREG = NEXTOP(PREG, ld);
SET_BB(B_Y);
ENDCACHE_Y();
GONext();
ENDOp();
/*****************************************************************
* Profiled try - retry - trust instructions *
*****************************************************************/
/* profiled_enter_me Label,NArgs */
Op(enter_profiling, l);
LOCK(((PredEntry *)(PREG->u.l.l))->StatisticsForPred.lock);
((PredEntry *)(PREG->u.l.l))->StatisticsForPred.NOfEntries++;
UNLOCK(((PredEntry *)(PREG->u.l.l))->StatisticsForPred.lock);
PREG = NEXTOP(PREG, l);
GONext();
ENDOp();
/* profiled_enter_me Label,NArgs */
Op(retry_profiled, l);
LOCK(((PredEntry *)(PREG->u.l.l))->StatisticsForPred.lock);
((PredEntry *)(PREG->u.l.l))->StatisticsForPred.NOfRetries++;
UNLOCK(((PredEntry *)(PREG->u.l.l))->StatisticsForPred.lock);
PREG = NEXTOP(PREG, l);
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(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock);
((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.NOfRetries++;
UNLOCK(((PredEntry *)(PREG->u.ld.p))->StatisticsForPred.lock);
restore_yaam_regs(PREG->u.ld.d);
restore_args(PREG->u.ld.s);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
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_Y);
restore_args(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, 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_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
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();
/*****************************************************************
* Specialised try - retry - trust instructions *
*****************************************************************/
/* try_me0 Label,NArgs */
Op(try_me0, ld);
check_trail();
CACHE_Y(Y);
store_yaam_regs(PREG->u.ld.d, 0);
set_cut(S_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* retry_me0 Label,NArgs */
Op(retry_me0, ld);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ld.d);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* trust_me0 UnusedLabel,NArgs */
Op(trust_me0, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
S_Y = (CELL *)(B_Y+1);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* try_me1 Label,NArgs */
Op(try_me1, ld);
check_trail();
CACHE_Y(Y);
{
register CELL x1 = CACHED_A1();
store_yaam_regs(PREG->u.ld.d, 1);
B_Y->cp_a1 = x1;
}
set_cut(S_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* retry_me1 Label,NArgs */
Op(retry_me1, ld);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ld.d);
ARG1 = B_Y->cp_a1;
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* trust_me1 UnusedLabel,NArgs */
Op(trust_me1, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
ARG1 = B_Y->cp_a1;
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
ARG1 = B_Y->cp_a1;
S_Y = &(B_Y->cp_a2);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* try_me2 Label,NArgs */
Op(try_me2, ld);
check_trail();
CACHE_Y(Y);
#ifdef HAVE_FEW_REGS
store_yaam_regs(PREG->u.ld.d, 2);
B_Y->cp_a1 = CACHED_A1();
B_Y->cp_a2 = ARG2;
#else
{
register CELL x2 = ARG2;
register CELL x1 = CACHED_A1();
store_yaam_regs(PREG->u.ld.d, 2);
B_Y->cp_a1 = x1;
B_Y->cp_a2 = x2;
}
#endif
set_cut(S_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* retry_me2 Label,NArgs */
Op(retry_me2, ld);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ld.d);
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* trust_me2 UnusedLabel,NArgs */
Op(trust_me2, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
S_Y = &(B_Y->cp_a3);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* try_me3 Label,NArgs */
Op(try_me3, ld);
check_trail();
CACHE_Y(Y);
#ifdef HAVE_FEW_REGS
store_yaam_regs(PREG->u.ld.d, 3);
B_Y->cp_a1 = CACHED_A1();
B_Y->cp_a2 = ARG2;
B_Y->cp_a3 = ARG3;
#else
{
register CELL x1 = CACHED_A1();
register CELL x2 = ARG2;
register CELL x3 = ARG3;
store_yaam_regs(PREG->u.ld.d, 3);
B_Y->cp_a1 = x1;
B_Y->cp_a2 = x2;
B_Y->cp_a3 = x3;
}
#endif
set_cut(S_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* retry_me3 Label,NArgs */
Op(retry_me3, ld);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ld.d);
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
ARG3 = B_Y->cp_a3;
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* trust_me3 UnusedLabel,NArgs */
Op(trust_me3, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
ARG3 = B_Y->cp_a3;
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
ARG3 = B_Y->cp_a3;
S_Y = &(B_Y->cp_a4);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* try_me4 Label,NArgs */
Op(try_me4, ld);
check_trail();
CACHE_Y(Y);
store_yaam_regs(PREG->u.ld.d, 4);
#ifdef HAVE_FEW_REGS
B_Y->cp_a1 = CACHED_A1();
B_Y->cp_a2 = ARG2;
B_Y->cp_a3 = ARG3;
B_Y->cp_a4 = ARG4;
#else
{
register CELL x1 = CACHED_A1();
register CELL x2 = ARG2;
register CELL x3 = ARG3;
register CELL x4 = ARG4;
B_Y->cp_a1 = x1;
B_Y->cp_a2 = x2;
B_Y->cp_a3 = x3;
B_Y->cp_a4 = x4;
}
#endif
set_cut(S_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* retry_me4 Label,NArgs */
Op(retry_me4, ld);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ld.d);
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
ARG3 = B_Y->cp_a3;
ARG4 = B_Y->cp_a4;
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/* trust_me4 UnusedLabel,NArgs */
Op(trust_me4, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
ARG3 = B_Y->cp_a3;
ARG4 = B_Y->cp_a4;
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
ARG1 = B_Y->cp_a1;
ARG2 = B_Y->cp_a2;
ARG3 = B_Y->cp_a3;
ARG4 = B_Y->cp_a4;
S_Y = &(B_Y->cp_a5);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
PREG = NEXTOP(PREG, ld);
GONext();
ENDOp();
/*****************************************************************
* enter a logical semantics dynamic predicate *
*****************************************************************/
/* enter logical pred */
BOp(try_logical_pred, l);
/* mark the indexing code */
{
Clause *cl = (Clause *)PREG->u.l.l;
PREG = NEXTOP(PREG, l);
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);
cl->u2.ClUse = TR-(tr_fr_ptr)(TrailBase);
}
#endif
UNLOCK(cl->ClLock);
}
GONext();
ENDBOp();
/* trust a logical pred, that is, release the code */
BOp(trust_logical_pred, l);
/* unmark the indexing code */
/* mark the indexing code */
{
Clause *cl = (Clause *)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_IN_USE(cl) && cl->ClFlags & ErasedMask) {
UNLOCK(cl->ClLock);
/* I am the last one using this clause, hence I don't need a lock
to dispose of it
*/
ErCl(cl);
} else {
UNLOCK(cl->ClLock);
}
#else
if (cl->u2.ClUse == TR-(tr_fr_ptr)(TrailBase)) {
cl->u2.ClUse = 0;
cl->ClFlags &= ~InUseMask;
/* clear the entry from the trail */
TR = --(B->cp_tr);
/* next, recover space for the indexing code if it was erased */
if (cl->ClFlags & ErasedMask) {
ErCl(cl);
}
}
#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)
{
Clause *cl = (Clause *)PREG->u.EC.ClBase;
LOCK(cl->ClLock);
/* always add an extra reference */
INC_CLREF_COUNT(cl);
TRAIL_CLREF(cl);
UNLOCK(cl->ClLock);
}
#else
{
Clause *cl = (Clause *)PREG->u.EC.ClBase;
if (!(cl->ClFlags |= InUseMask)) {
/* Clause *cl = (Clause *)PREG->u.EC.ClBase;
PREG->u.EC.ClTrail = TR-(tr_fr_ptr)TrailBase;
PREG->u.EC.ClENV = LCL0-YENV;*/
cl->ClFlags |= InUseMask;
TRAIL_CLREF(cl);
}
}
#endif
PREG = NEXTOP(PREG, EC);
GONext();
ENDBOp();
/*****************************************************************
* try and retry of dynamic predicates *
*****************************************************************/
/* spy_or_trymark */
BOp(spy_or_trymark, ld);
if (FlipFlop ^= 1) {
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();
#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 (((PredEntry *)(PREG->u.ld.p))->CodeOfPred !=
(CODEADDR)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 = (yamop *)(((PredEntry *)(PREG->u.ld.p))->CodeOfPred);
JMPNext();
}
#endif
CACHE_Y(Y);
PREG = (yamop *) (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_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
#if defined(YAPOR) || defined(THREADS)
INC_CLREF_COUNT(ClauseCodeToClause(PREG));
UNLOCK(DynamicLock(PREG));
TRAIL_CLREF(ClauseCodeToClause(PREG));
#else
if (FlagOff(InUseMask, DynamicFlags(PREG))) {
SetFlag(InUseMask, DynamicFlags(PREG));
TRAIL_CLREF(ClauseCodeToClause(PREG));
}
#endif
PREG = NEXTOP(PREG,ld);
JMPNext();
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(((PredEntry *)(PREG->u.ld.p))->PRWLock);
CACHE_Y(B);
PREG = (yamop *) (PREG->u.ld.d);
LOCK(DynamicLock(PREG));
READ_UNLOCK(((PredEntry *)(PREG->u.ld.p))->PRWLock);
restore_yaam_regs(PREG);
restore_args(PREG->u.ld.s);
#ifdef FROZEN_STACKS
S_Y = (CELL *)PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
#if defined(YAPOR) || defined(THREADS)
INC_CLREF_COUNT(ClauseCodeToClause(PREG));
TRAIL_CLREF(ClauseCodeToClause(PREG));
UNLOCK(DynamicLock(PREG));
#else
if (FlagOff(InUseMask, DynamicFlags(PREG))) {
SetFlag(InUseMask, DynamicFlags(PREG));
TRAIL_CLREF(ClauseCodeToClause(PREG));
}
#endif
PREG = NEXTOP(PREG,ld);
JMPNext();
ENDBOp();
/*****************************************************************
* Failure *
*****************************************************************/
/* trust_fail */
BOp(trust_fail, e);
B = B->cp_b;
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);
#ifndef NO_CHECKING
/* the fail builtin may end a loop of C builtins,
and some of these built-ins may grow the heap. */
#ifdef YAPOR
if (HeapTop > GlobalBase - MinHeapGap)
goto noheapleft_in_fail;
#else
if (HeapTop > Addr(AuxSp) - MinHeapGap)
goto noheapleft_in_fail;
#endif /* YAPOR */
#endif
fail:
{
register tr_fr_ptr pt0 = TR;
PREG = B->cp_ap;
CACHE_TR(B->cp_tr);
RESTORE_TR();
PREFETCH_OP(PREG);
failloop:
if (pt0 == S_TR) {
#ifdef FROZEN_STACKS /* TRAIL */
#ifdef SBA
if (pt0 < TR_FZ || pt0 > (tr_fr_ptr)TrailTop)
#else
if (pt0 < TR_FZ)
#endif /* SBA */
{
TR = TR_FZ;
TRAIL_LINK(pt0);
}
#endif /* FROZEN_STACKS */
SP = SP0;
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace) {
op_numbers opnum = op_from_opcode(PREG->opc);
restart_cp:
switch (opnum) {
#ifdef TABLING
case _table_answer_resolution:
{
PredEntry *pe = ENV_ToP(B->cp_cp);
op_numbers caller_op = op_from_opcode(ENV_ToOp(B->cp_cp));
/* first condition checks if this was a meta-call */
if ((caller_op != _call && caller_op != _fcall) || pe == NULL) {
low_level_trace(retry_table_consumer, NULL, NULL);
} else {
low_level_trace(retry_table_consumer, pe, NULL);
}
}
case _table_completion:
{
PredEntry *pe = ENV_ToP(B->cp_cp);
op_numbers caller_op = op_from_opcode(ENV_ToOp(B->cp_cp));
/* first condition checks if this was a meta-call */
if ((caller_op != _call && caller_op != _fcall) || pe == NULL) {
low_level_trace(retry_table_producer, NULL, NULL);
} else {
low_level_trace(retry_table_producer, pe, (CELL *)(((gen_cp_ptr)B)+1));
}
}
break;
case _trie_retry_var:
case _trie_retry_val:
case _trie_retry_atom:
case _trie_retry_list:
case _trie_retry_struct:
case _trie_trust_var:
case _trie_trust_val:
case _trie_trust_atom:
case _trie_trust_list:
case _trie_trust_struct:
low_level_trace(retry_table_consumer, NULL, NULL);
break;
case _table_retry_me:
case _table_trust_me:
low_level_trace(retry_pred, (PredEntry *)(PREG->u.lds.p), (CELL *)(((gen_cp_ptr)B)+1));
break;
#endif
case _or_else:
case _or_last:
low_level_trace(retry_or, (PredEntry *)PREG, &(B->cp_a1));
break;
case _trust_logical_pred:
low_level_trace(retry_pred, (PredEntry *)(NEXTOP(PREG,l)->u.ld.p), &(B->cp_a1));
break;
case _switch_last:
case _switch_l_list:
low_level_trace(retry_pred, (PredEntry *)(PREG->u.slll.p), &(B->cp_a1));
break;
case _retry_c:
case _retry_userc:
low_level_trace(retry_pred, (PredEntry *)(PREG->u.lds.p), &(B->cp_a1));
break;
case _retry_profiled:
opnum = op_from_opcode(NEXTOP(B->cp_ap,l)->opc);
goto restart_cp;
case _retry_me:
case _trust_me:
case _profiled_retry_me:
case _profiled_trust_me:
case _retry_me0:
case _trust_me0:
case _retry_me1:
case _trust_me1:
case _retry_me2:
case _trust_me2:
case _retry_me3:
case _trust_me3:
case _retry_me4:
case _trust_me4:
case _retry_and_mark:
case _profiled_retry_and_mark:
case _retry:
case _trust_in:
case _trust:
case _retry_first:
case _trust_first_in:
case _trust_first:
case _retry_tail:
case _trust_tail_in:
case _trust_tail:
case _retry_head:
case _trust_head_in:
case _trust_head:
low_level_trace(retry_pred, (PredEntry *)(PREG->u.ld.p), &(B->cp_a1));
default:
break;
}
}
#endif /* LOW_LEVEL_TRACER */
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
{
register CELL flags;
d1 = (CELL) RepPair(d1);
#ifdef FROZEN_STACKS /* TRAIL */
/* avoid frozen segments */
#ifdef SBA
if ((ADDR) d1 >= HeapTop)
#else
if ((ADDR) d1 >= TrailBase)
#endif
{
pt0 = (tr_fr_ptr) d1;
goto failloop;
}
#endif /* FROZEN_STACKS */
flags = Flags(d1);
#if defined(YAPOR) || defined(THREADS)
if (!FlagOn(DBClMask, flags)) {
Clause *cl = ClauseFlagsToClause(d1);
int erase;
LOCK(cl->ClLock);
DEC_CLREF_COUNT(cl);
erase = (cl->ClFlags & ErasedMask) && (cl->ref_count == 0);
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 */
ErCl(cl);
setregs();
}
} else {
DBRef dbr = DBStructFlagsToDBStruct(d1);
int erase;
LOCK(dbr->lock);
DEC_DBREF_COUNT(dbr);
erase = (dbr->Flags & ErasedMask) && (dbr->ref_count == 0);
UNLOCK(dbr->lock);
if (erase) {
saveregs();
ErDBE(dbr);
setregs();
}
}
#else
ResetFlag(InUseMask, flags);
Flags(d1) = flags;
/* vsc??? if (FlagOn(StaticMask, flags)) {
if (FlagOff(SpiedMask, flags)) {
PredCode(d1) = TruePredCode(d1);
}
}
else
*/
if (FlagOn(ErasedMask, flags)) {
if (FlagOn(DBClMask, flags)) {
saveregs();
ErDBE(DBStructFlagsToDBStruct(d1));
setregs();
} else {
saveregs();
ErCl(ClauseFlagsToClause(d1));
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 */
pt0--;
#if FROZEN_STACKS
pt[0] = TrailVal(pt0);
#else
pt[0] = TrailTerm(pt0);
#endif
goto failloop;
}
#endif
ENDD(d1);
ENDCACHE_TR();
}
ENDPBOp();
noheapleft_in_fail:
ASP = (CELL *)B;
goto noheapleft;
/************************************************************************\
* Cut & Commit Instructions *
\************************************************************************/
/* cut */
Op(cut, e);
PREG = NEXTOP(PREG, e);
BEGD(d0);
/* assume cut is always in stack */
d0 = Y[E_CB];
if (SHOULD_CUT_UP_TO(B,(choiceptr) d0)) {
/* cut ! */
#ifdef YAPOR
CUT_prune_to((choiceptr) d0);
#else
B = (choiceptr) d0;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
SET_BB(PROTECT_FROZEN_B(B));
HBREG = PROTECT_FROZEN_H(B);
TR = trim_trail(B, TR, HBREG);
}
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 = Y[E_CB];
if (SHOULD_CUT_UP_TO(B,(choiceptr) d0)) {
/* cut ! */
#ifdef YAPOR
CUT_prune_to((choiceptr) d0);
#else
B = (choiceptr) d0;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
SET_BB(PROTECT_FROZEN_B(B));
HBREG = PROTECT_FROZEN_H(B);
TR = trim_trail(B, TR, HBREG);
}
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];
if (SHOULD_CUT_UP_TO(B,(choiceptr)d0)) {
/* cut ! */
#ifdef YAPOR
CUT_prune_to((choiceptr) d0);
#else
B = (choiceptr) d0;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
SET_BB(PROTECT_FROZEN_B(B));
HBREG = PROTECT_FROZEN_H(B);
TR = trim_trail(B, TR, HBREG);
}
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) = MkIntTerm(LCL0-(CELL *) (B));
#endif
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(Y+PREG->u.y.y,MkIntegerTerm((Int)B));
#else
Y[PREG->u.y.y] = MkIntTerm(LCL0-(CELL *) (B));
#endif
PREG = NEXTOP(PREG, y);
GONext();
ENDOp();
/* comit_b_x Xi */
Op(comit_b_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
#ifdef COROUTINING
CACHE_Y_AS_ENV(Y);
check_stack(NoStackComitX, H);
ENDCACHE_Y_AS_ENV();
do_comit_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-IntOfTerm(d0));
#endif
if (SHOULD_CUT_UP_TO(B,pt0)) {
#ifdef YAPOR
CUT_prune_to(pt0);
#else
B = pt0;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
SET_BB(PROTECT_FROZEN_B(B));
HBREG = PROTECT_FROZEN_H(pt0);
TR = trim_trail(B, TR, HBREG);
}
}
ENDD(d0);
GONext();
ENDOp();
/* comit_b_y Yi */
Op(comit_b_y, y);
BEGD(d0);
d0 = Y[PREG->u.y.y];
#ifdef COROUTINING
CACHE_Y_AS_ENV(Y);
check_stack(NoStackComitY, H);
ENDCACHE_Y_AS_ENV();
do_comit_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-IntOfTerm(d0));
#endif
if (SHOULD_CUT_UP_TO(B,pt0)) {
#ifdef YAPOR
CUT_prune_to(pt0);
#else
B = pt0;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
SET_BB(PROTECT_FROZEN_B(B));
HBREG = PROTECT_FROZEN_H(pt0);
TR = trim_trail(B, TR, HBREG);
}
}
ENDD(d0);
GONext();
ENDOp();
/*************************************************************************
* Call / Proceed instructions *
*************************************************************************/
/* Macros for stack trimming */
/* execute Label */
BOp(execute, l);
BEGP(pt0);
CACHE_Y_AS_ENV(Y);
pt0 = (CELL *) (PREG->u.l.l);
CACHE_A1();
ALWAYS_LOOKAHEAD(PredOpCode(pt0));
BEGD(d0);
d0 = (CELL)B;
#ifndef NO_CHECKING
check_stack(NoStackExecute, H);
#endif
PREG = (yamop *) PredCode(pt0);
E_Y[E_CB] = d0;
ENDD(d0);
#ifdef DEPTH_LIMIT
if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is prolog */
if (Module(pt0)) {
if (DEPTH == MkIntTerm(0))
FAIL();
else DEPTH = RESET_DEPTH();
}
} else if (Module(pt0))
DEPTH -= MkIntConstant(2);
#endif /* DEPTH_LIMIT */
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,pred_entry(pt0),XREGS+1);
#endif /* LOW_LEVEL_TRACE */
/* this is the equivalent to setting up the stack */
ALWAYS_GONext();
ALWAYS_END_PREFETCH();
ENDCACHE_Y_AS_ENV();
ENDP(pt0);
ENDBOp();
NoStackExecute:
SREG = (CELL *) pred_entry(PREG->u.l.l);
if (CFREG == (CELL)(LCL0+1))
{
ASP = Y+E_CB;
if (ASP > (CELL *)B)
ASP = (CELL *)B;
goto noheapleft;
}
if (CFREG != CalculateStackGap())
goto creep;
else
goto NoStackExec;
/* dexecute Label */
/* joint deallocate and execute */
BOp(dexecute, l);
CACHE_Y_AS_ENV(Y);
BEGP(pt0);
CACHE_A1();
pt0 = (CELL *) (PREG->u.l.l);
#ifndef NO_CHECKING
/* check stacks */
check_stack(NoStackDExecute, H);
#endif
#ifdef DEPTH_LIMIT
if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is primitives */
if (Module(pt0)) {
if (DEPTH == MkIntTerm(0))
FAIL();
else DEPTH = RESET_DEPTH();
}
} else if (Module(pt0))
DEPTH -= MkIntConstant(2);
#endif /* DEPTH_LIMIT */
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,pred_entry(pt0),XREGS+1);
#endif /* LOW_LEVEL_TRACER */
PREG = (yamop *) PredCode(pt0);
ALWAYS_LOOKAHEAD(PredOpCode(pt0));
/* do deallocate */
CPREG = (yamop *) E_Y[E_CP];
E_Y = ENV = (CELL *) E_Y[E_E];
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (E_Y > (CELL *) top_b || E_Y < H) E_Y = (CELL *) top_b;
#else
if (E_Y > (CELL *) top_b) E_Y = (CELL *) top_b;
#endif
else E_Y = (CELL *)((CELL)E_Y + ENV_Size(CPREG));
}
#else
if (E_Y > (CELL *)B) {
E_Y = (CELL *)B;
}
else {
E_Y = (CELL *) ((CELL) E_Y + ENV_Size(CPREG));
}
#endif /* FROZEN_STACKS */
WRITEBACK_Y_AS_ENV();
/* setup GB */
E_Y[E_CB] = (CELL) B;
ALWAYS_GONext();
ALWAYS_END_PREFETCH();
ENDP(pt0);
ENDCACHE_Y_AS_ENV();
ENDBOp();
BOp(fcall, sla);
CACHE_Y_AS_ENV(Y);
E_Y[E_CP] = (CELL) CPREG;
E_Y[E_E] = (CELL) ENV;
#ifdef DEPTH_LIMIT
E_Y[E_DEPTH] = DEPTH;
#endif /* DEPTH_LIMIT */
ENDCACHE_Y_AS_ENV();
ENDBOp();
BOp(call, sla);
CACHE_Y_AS_ENV(Y);
BEGP(pt0);
pt0 = (CELL *) (PREG->u.sla.l);
CACHE_A1();
#ifndef NO_CHECKING
check_stack(NoStackCall, H);
#endif
ENV = E_Y;
/* Try to preserve the environment */
E_Y = (CELL *) (((char *) Y) + PREG->u.sla.s);
CPREG =
(yamop *) NEXTOP(PREG, sla);
ALWAYS_LOOKAHEAD(PredOpCode(pt0));
PREG = (yamop *) PredCode(pt0);
#ifdef DEPTH_LIMIT
if (DEPTH <= MkIntTerm(1)) {/* I assume Module==0 is primitives */
if (Module(pt0)) {
if (DEPTH == MkIntTerm(0))
FAIL();
else DEPTH = RESET_DEPTH();
}
} else if (Module(pt0))
DEPTH -= MkIntConstant(2);
#endif /* DEPTH_LIMIT */
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,pred_entry(pt0),XREGS+1);
#endif /* LOW_LEVEL_TRACER */
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (E_Y > (CELL *) top_b || E_Y < H) E_Y = (CELL *) top_b;
#else
if (E_Y > (CELL *) top_b) E_Y = (CELL *) top_b;
#endif
}
#else
if (E_Y > (CELL *) B) {
E_Y = (CELL *) B;
}
#endif /* FROZEN_STACKS */
WRITEBACK_Y_AS_ENV();
/* setup GB */
E_Y[E_CB] = (CELL) B;
#ifdef YAPOR
SCH_check_requests();
#endif /* YAPOR */
ALWAYS_GONext();
ALWAYS_END_PREFETCH();
ENDP(pt0);
ENDCACHE_Y_AS_ENV();
ENDBOp();
NoStackCall:
/* on X86 machines S will not actually be holding the pointer to pred */
SREG = (CELL *) PREG->u.sla.p;
if (CFREG == (CELL)(LCL0+1)) {
ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
if (ASP > (CELL *)B)
ASP = (CELL *)B;
goto noheapleft;
}
#ifdef COROUTINING
if (CFREG == Unsigned(LCL0)) {
if (ReadTimedVar(WokenGoals) != TermNil)
goto creepc;
else {
CFREG = CalculateStackGap();
JMPNext();
}
}
#endif
if (CFREG != CalculateStackGap())
goto creepc;
ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
if (ASP > (CELL *)B)
ASP = (CELL *)B;
saveregs();
gc(((PredEntry *)SREG)->ArityOfPE, Y, NEXTOP(PREG, sla));
setregs();
JMPNext();
#ifdef COROUTINING
/* This is easier: I know there is an environment so I cannot do allocate */
NoStackComitY:
/* find something to fool S */
if (CFREG == Unsigned(LCL0) && ReadTimedVar(WokenGoals) != TermNil) {
SREG = (CELL *)RepPredProp(GetPredPropByFunc(MkFunctor(AtomRestoreRegs,2),0));
XREGS[0] = Y[PREG->u.y.y];
PREG = NEXTOP(PREG,y);
goto creep_either;
}
/* don't do debugging and friends here */
goto do_comit_b_y;
/* Problem: have I got an environment or not? */
NoStackComitX:
/* find something to fool S */
if (CFREG == Unsigned(LCL0) && ReadTimedVar(WokenGoals) != TermNil) {
SREG = (CELL *)RepPredProp(GetPredPropByFunc(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(Y);
E_Y[E_CP] = (CELL) CPREG;
E_Y[E_E] = (CELL) ENV;
#ifdef DEPTH_LIMIT
E_Y[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_comit_b_x;
/* don't forget I cannot creep at ; */
NoStackEither:
/* find something to fool S */
SREG = (CELL *)RepPredProp(GetPredPropByFunc(MkFunctor(AtomRestoreRegs,1),0));
if (CFREG == (CELL)(LCL0+1)) {
ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
if (ASP > (CELL *)B)
ASP = (CELL *)B;
goto noheapleft;
}
if (CFREG == Unsigned(LCL0)) {
if (ReadTimedVar(WokenGoals) != TermNil)
goto creep_either;
else {
CFREG = CalculateStackGap();
JMPNext();
}
}
if (CFREG != CalculateStackGap()) {
goto either_notest;
}
ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
if (ASP > (CELL *)B)
ASP = (CELL *)B;
saveregs();
gc(0, Y, NEXTOP(PREG, sla));
setregs();
JMPNext();
creep_either: /* do creep in either */
ENV = Y;
CPREG = NEXTOP(PREG, sla);
Y = (CELL *) (((char *) Y) + PREG->u.sla.s);
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) Y = (CELL *) top_b;
#else
if (Y > (CELL *) top_b) Y = (CELL *) top_b;
#endif
else Y = Y + ENV_Size(CPREG);
}
#else
if (Y > (CELL *) B)
Y = (CELL *) B;
#endif /* FROZEN_STACKS */
/* setup GB */
ARG1 = push_live_regs(CPREG);
/* ARG0 has an extra argument for suspended cuts */
ARG2 = XREGS[0];
Y[E_CB] = (CELL) B;
goto creep;
#endif
creepc: /* do creep in call */
ENV = Y;
CPREG = NEXTOP(PREG, sla);
Y = (CELL *) (((char *) Y) + PREG->u.sla.s);
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) Y = (CELL *) top_b;
#else
if (Y > (CELL *) top_b) Y = (CELL *) top_b;
#endif
else Y = Y + ENV_Size(CPREG);
}
#else
if (Y > (CELL *) B)
Y = (CELL *) B;
else
/* I am not sure about this */
Y = Y + ENV_Size(CPREG);
#endif /* FROZEN_STACKS */
/* setup GB */
Y[E_CB] = (CELL) B;
goto creep;
NoStackDExecute:
/* set SREG for next instructions */
SREG = (CELL *) pred_entry(PREG->u.l.l);
if (CFREG == (CELL)(LCL0+1)) {
ASP = Y+E_CB;
if (ASP > (CELL *)B)
ASP = (CELL *)B;
goto noheapleft;
}
#ifdef COROUTINING
if (CFREG == Unsigned(LCL0)) {
if (ReadTimedVar(WokenGoals) != TermNil)
goto creepde;
else {
CFREG = CalculateStackGap();
JMPNext();
}
}
#endif
if (CFREG != CalculateStackGap())
goto creepde;
/* try performing garbage collection */
ASP = Y+E_CB;
if (ASP > (CELL *)B)
ASP = (CELL *)B;
saveregs();
gc(((PredEntry *)(SREG))->ArityOfPE, (CELL *)Y[E_E], (yamop *)Y[E_CP]);
setregs();
/* hopefully, gc will succeeded, and we will retry
* the instruction */
JMPNext();
NoStackExec:
/* try performing garbage collection */
ASP = Y+E_CB;
if (ASP > (CELL *)B)
ASP = (CELL *)B;
saveregs();
gc(((PredEntry *)(SREG))->ArityOfPE, ENV, CPREG);
setregs();
/* hopefully, gc will succeeded, and we will retry
* the instruction */
JMPNext();
creepde:
/* first, deallocate */
CPREG = (yamop *) Y[E_CP];
ENV = Y = (CELL *) Y[E_E];
#ifdef DEPTH_LIMIT
Y[E_DEPTH] = DEPTH;
#endif /* DEPTH_LIMIT */
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) Y = (CELL *) top_b;
#else
if (Y > (CELL *) top_b) Y = (CELL *) top_b;
#endif
else Y = (CELL *) ((CELL)Y + ENV_Size(CPREG));
}
#else
if (Y > (CELL *) B) {
Y = (CELL *) B;
}
else {
Y = (CELL *) ((CELL) Y + ENV_Size(CPREG));
}
#endif /* FROZEN_STACKS */
/* setup GB */
Y[E_CB] = (CELL) B;
/* and now CREEP */
creep:
#ifdef COROUTINING
/* If I was not in creep mode, I have to unfold all woken
* goals first.
* Notice there might be a problem with
* backtracking. I do not trail operations on WokenGoals,
* hence Woken Goals is not restored on backtracking. This
* is not a problem if suspended goals are quickly pushed onto
* the stack for execution. In other words, WakeUpCode
* *cannot* fail before having woken up all suspended goals.
*/
/* make sure we are here because of an awoken goal */
if (CFREG == Unsigned(LCL0) && !(PrologMode & (InterruptMode|AbortMode))) {
Term WGs;
Term my_goal;
WGs = ReadTimedVar(WokenGoals);
my_goal = AbsAppl(H);
if (WGs != TermNil) {
#if SHADOW_S
/* save S for ModuleName() */
S = SREG;
#endif
BEGD(d0);
d0 = ((PredEntry *)(SREG))->ArityOfPE;
if (d0 == 0) {
my_goal = MkAtomTerm((Atom)((PredEntry *)(SREG))->FunctorOfPred);
}
else {
my_goal = 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, wake_up_unk);
wake_up_nonvar:
pt1++;
/* just copy it to the heap */
*H++ = d1;
continue;
derefa_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++ = (CELL)pt0;
pt1++;
} else {
d1 = Unsigned(H);
RESET_VARIABLE(H);
pt1++;
H += 1;
Bind_Local(pt0, d1);
}
/* notice I am incrementing H */
ENDP(pt0);
ENDD(d1);
}
ENDP(pt1);
}
ENDD(d0);
H[0] = Module_Name((CODEADDR)SREG);
H[1] = my_goal;
ARG1 = AbsPair(H);
H += 2;
ARG2 = ListOfWokenGoals();
SREG = (CELL *) (WakeUpCode);
/* no more goals to wake up */
UpdateTimedVar(WokenGoals, TermNil);
CFREG = CalculateStackGap();
}
else {
CFREG = CalculateStackGap();
/* We haven't changed P yet so this means redo the
* same instruction */
JMPNext();
}
}
else {
#endif
#if _MSC_VER || defined(__MINGW32__)
/* I need this for Windows and other systems where SIGINT
is not proceesed by same thread as absmi */
if (PrologMode & (AbortMode|InterruptMode)) {
CFREG = CalculateStackGap();
/* same instruction */
if (PrologMode & InterruptMode) {
PrologMode &= ~InterruptMode;
ASP = Y+E_CB;
if (ASP > (CELL *)B)
ASP = (CELL *)B;
saveregs();
ProcessSIGINT();
setregs();
}
JMPNext();
}
#endif
creep_on = FALSE;
#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] = Module_Name(((CODEADDR)(SREG)));
ARG1 = (Term) AbsPair(H);
H += 2;
CFREG = CalculateStackGap();
SREG = (CELL *) CreepCode;
#ifdef COROUTINING
}
#endif
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,(PredEntry *)(SREG),XREGS+1);
#endif /* LOW_LEVEL_TRACE */
PREG = (yamop *) ((PredEntry *)(SREG))->CodeOfPred;
CACHE_A1();
JMPNext();
BOp(procceed, e);
PREG = CPREG;
Y = ENV;
#ifdef DEPTH_LIMIT
DEPTH = Y[E_DEPTH];
#endif
JMPNext();
ENDBOp();
Op(allocate, e);
CACHE_Y_AS_ENV(Y);
PREG = NEXTOP(PREG, e);
E_Y[E_CP] = (CELL) CPREG;
E_Y[E_E] = (CELL) ENV;
#ifdef DEPTH_LIMIT
E_Y[E_DEPTH] = DEPTH;
#endif /* DEPTH_LIMIT */
ENV = E_Y;
ENDCACHE_Y_AS_ENV();
GONext();
ENDOp();
Op(deallocate, e);
PREG = NEXTOP(PREG, e);
/* other instructions do depend on S being set by deallocate
:-( */
SREG = Y;
CPREG = (yamop *) Y[E_CP];
ENV = Y = (CELL *) Y[E_E];
#ifdef DEPTH_LIMIT
DEPTH = Y[E_DEPTH];
#endif /* DEPTH_LIMIT */
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) Y = (CELL *) top_b;
#else
if (Y > (CELL *) top_b) Y = (CELL *) top_b;
#endif
else Y = (CELL *)((CELL) Y + ENV_Size(CPREG));
}
#else
if (Y > (CELL *) B)
Y = (CELL *) B;
else
Y = (CELL *) ((CELL) Y + ENV_Size(CPREG));
#endif /* FROZEN_STACKS */
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 */
/************************************************************************\
* 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 = Y + 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
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_Y X refers to the state of the first argument, and
* Y 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) 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) 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) WakeUp(pt0);
uc1:
#endif
GONext();
#ifdef COROUTINING
uc2:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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 = Y + 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) 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) 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) WakeUp(pt0);
uc3:
#endif
GONext();
#ifdef COROUTINING
uc4:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) WakeUp(pt0);
bind_gatom:
#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) {
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) 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) 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) 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(BigIntOfTerm(d0),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) 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) 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) 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) WakeUp(pt0);
uc5:
#endif
GONext();
#ifdef COROUTINING
uc6:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) 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 = Y + 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) 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 = Y+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) 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) WakeUp(pt0);
uc7:
#endif
GONext();
#ifdef COROUTINING
uc8:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) WakeUp(pt0);
bind_glist_valy_write:
#endif
BEGD(d0);
/* include XREG on it */
d0 = Y[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) 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(Y+PREG->u.xy.y,d0);
#else
Y[PREG->u.xy.y] = d0;
#endif
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(Y+PREG->u.xy.y,Unsigned(pt1 + 1));
#else
Y[PREG->u.xy.y] = Unsigned(pt1 + 1);
#endif
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) 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) 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) 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) WakeUp(pt0);
uc9:
#endif
GONext();
#ifdef COROUTINING
uc10:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) 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 = Y+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) 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 = Y+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) 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) WakeUp(pt0);
uc11:
#endif
GONext();
#ifdef COROUTINING
uc12:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) WakeUp(pt0);
bind_glist_void_valy_write:
#endif
/* include XREG on it */
BEGD(d1);
d1 = Y[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(Y+PREG->u.oy.y,(CELL)(SREG-1));
} else {
Bind_Local(Y+PREG->u.oy.y,d0);
}
#else
if (d0 == 0) {
Y[PREG->u.oy.y] = (CELL)(SREG-1);
} else
Y[PREG->u.oy.y] = d0;
#endif
#else
Y[PREG->u.oy.y] = d0;
#endif
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(Y+PREG->u.oy.y,(CELL) S_SREG);
#else
Y[PREG->u.oy.y] = (CELL) S_SREG;
#endif
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(Y+PREG->u.oy.y,(CELL)SREG);
} else {
Bind_Local(Y+PREG->u.oy.y,d0);
}
#else
if (d0 == 0) {
Y[PREG->u.oy.y] = (CELL)SREG;
} else {
Y[PREG->u.oy.y] = d0;
}
#endif
#else
Y[PREG->u.oy.y] = d0;
#endif
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(Y+PREG->u.oy.y,(CELL) S_SREG);
#else
Y[PREG->u.oy.y] = (CELL) S_SREG;
#endif
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) 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) 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) WakeUp(pt0);
uc13:
#endif
GONext();
#ifdef COROUTINING
uc14:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) 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) 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) WakeUp(pt0);
uc15:
#endif
GONext();
#ifdef COROUTINING
uc16:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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 = Y[PREG->u.oy.y];
#if SBA
if (d0 == 0) /* free variable */
*SREG++ = (CELL)(Y+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 = Y+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) 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 = Y+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) 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) WakeUp(pt0);
uc17:
#endif
GONext();
#ifdef COROUTINING
uc18:
DO_TRAIL(pt1, (CELL)pt1);
if (pt1 < H0) 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 = Y[PREG->u.oy.y];
#if SBA
if (d0 == 0) /* new variable */
SREG[0] = (CELL)(Y+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 = Y+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) 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 = Y+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) 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) WakeUp(pt0);
uc19:
#endif
GONext();
#ifdef COROUTINING
uc20:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) 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) 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) WakeUp(pt0);
uc21:
#endif
GONext();
#ifdef COROUTINING
uc22:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) 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) 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) WakeUp(pt0);
uc23:
#endif
GONext();
#ifdef COROUTINING
uc24:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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 = Y+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 = Y+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) 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 = Y+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) 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) WakeUp(pt0);
uc25:
#endif
GONext();
#ifdef COROUTINING
uc26:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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 = Y+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 = Y+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) 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 = Y+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) 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) WakeUp(pt0);
uc27:
#endif
GONext();
#ifdef COROUTINING
uc28:
DO_TRAIL(pt1, (CELL)pt0);
if (pt1 < H0) 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) 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) 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) 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) 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) 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) 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) 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(BigIntOfTerm(d0),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) 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(BigIntOfTerm(d0),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) 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) 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) 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) 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) 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 = Y + 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
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_y_val, yx);
BEGD(d0);
d0 = Y[PREG->u.yx.y];
#if SBA
if (d0 == 0) /* new variable */
XREG(PREG->u.yx.x) = (CELL)(Y+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 = Y+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 >= Y) {
/* 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(Y+PREG->u.y.y,Unsigned(SREG));
#else
Y[PREG->u.y.y] = Unsigned(SREG);
#endif
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);
deref_head(d0, w_x_unk);
w_x_bound:
*SREG++ = d0;
PREG = NEXTOP(PREG, x);
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
PREG = NEXTOP(PREG, x);
/* 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 {
PREG = NEXTOP(PREG, x);
*SREG++ = Unsigned(pt0);
GONext();
}
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(write_y_val, y);
BEGD(d0);
d0 = Y[PREG->u.y.y];
#if SBA
if (d0 == 0) /* new variable */
*SREG++ = (CELL)(Y+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 = Y+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
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(Y+PREG->u.oy.y,AbsPair(SREG));
#else
Y[PREG->u.oy.y] = AbsPair(SREG);
#endif
PREG = NEXTOP(PREG, oy);
GONextW();
ENDOpW();
Op(save_pair_y, oy);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(Y+PREG->u.oy.y,AbsPair(SREG));
#else
Y[PREG->u.oy.y] = AbsPair(SREG);
#endif
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(Y+PREG->u.oy.y,AbsAppl(SREG-1));
#else
Y[PREG->u.oy.y] = AbsAppl(SREG - 1);
#endif
PREG = NEXTOP(PREG, oy);
GONextW();
ENDOpW();
Op(save_appl_y, oy);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(Y+PREG->u.oy.y,AbsAppl(SREG-1));
#else
Y[PREG->u.oy.y] = AbsAppl(SREG - 1);
#endif
PREG = NEXTOP(PREG, oy);
GONext();
ENDOp();
/************************************************************************\
* Instructions for implemeting 'or;' *
\************************************************************************/
BOp(jump, l);
PREG = (yamop *) (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 (do_low_level_trace) {
low_level_trace(try_or, (PredEntry *)PREG, NULL);
}
#endif
#ifdef COROUTINING
CACHE_Y_AS_ENV(Y);
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 *) Y + (YREG) 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
}
#else
if (pt1 > B) {
pt1 = B;
}
#endif /* FROZEN_STACKS */
pt1 = (choiceptr)(((CELL *) pt1)-1);
*(CELL **) pt1 = Y;
store_yaam_regs_for_either(PREG->u.sla.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, (yamop *) (PREG->u.sla.l));
} else
#endif /* YAPOR */
B->cp_ap = (yamop *) PREG->u.sla.l;
PREG = NEXTOP(PREG, sla);
Y = (CELL *) B->cp_a1;
GONext();
ENDOp();
#ifdef YAPOR
Op(or_last, sla);
#else
Op(or_last, e);
#endif /* YAPOR */
BEGCHO(pt0);
pt0 = B;
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
H = HBREG = PROTECT_FROZEN_H(pt0);
Y = (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);
Y = (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, e);
#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);
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) ASP = (CELL *)top_b;
#else
if (Y > (CELL *) top_b) ASP = (CELL *)top_b;
#endif
else ASP = (CELL *)(((char *)Y) + PREG->u.sla.s);
}
#else
if (Y > (CELL *) B) {
ASP = (CELL *) B;
} else {
ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
}
#endif /* FROZEN_STACKS */
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,PREG->u.sla.p,XREGS+1);
#endif /* LOW_LEVEL_TRACE */
BEGD(d0);
d0 = (CELL) (PREG->u.sla.l);
PREG = NEXTOP(PREG, sla);
saveregs();
d0 = (*((Int (*)(void)) d0)) ();
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);
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) ASP = (CELL *) top_b;
#else
if (Y > (CELL *) top_b) ASP = (CELL *) top_b;
#endif
else ASP = (CELL *)(((char *)Y) + PREG->u.sla.s);
}
#else
if (Y > (CELL *) B)
ASP = (CELL *) B;
else {
ASP = (CELL *) (((char *) Y) + PREG->u.sla.s);
}
/* for slots to work */
*--ASP = MkIntTerm(0);
#endif /* FROZEN_STACKS */
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,PREG->u.sla.p,XREGS+1);
#endif /* LOW_LEVEL_TRACE */
{
PredEntry *p = PREG->u.sla.p;
PREG = NEXTOP(PREG, sla);
saveregs();
save_machine_regs();
SREG = (CELL *) YapExecute(p, (CPredicate)(p->TrueCodeOfPred));
EX = 0L;
}
restore_machine_regs();
setregs();
if (!SREG) {
FAIL();
}
JMPNext();
ENDBOp();
BOp(call_c_wfail, sdl);
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (Y > (CELL *) top_b || Y < H) ASP = (CELL *) top_b;
#else
if (Y > (CELL *) top_b) ASP = (CELL *) top_b;
#endif
else {
BEGD(d0);
d0 = PREG->u.sdl.s;
ASP = ((CELL *)Y) + d0;
ENDD(d0);
}
}
#else
if (Y > (CELL *) B)
ASP = (CELL *) B;
else {
BEGD(d0);
d0 = PREG->u.sdl.s;
ASP = ((CELL *) Y) + d0;
ENDD(d0);
}
#endif /* FROZEN_STACKS */
BEGD(d0);
d0 = (CELL) (PREG->u.sdl.d);
saveregs();
SREG = (CELL *) (*((Int (*)(void)) d0)) ();
ENDD(d0);
setregs();
if (!SREG)
PREG = (yamop *) (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(Y);
S_Y = S_Y - PREG->u.lds.extra;
store_args(PREG->u.lds.s);
store_yaam_regs(NEXTOP(PREG, lds), 0);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
TRYCC:
ASP = (CELL *)B;
saveregs();
BEGD(d0);
d0 = (CELL)PREG->u.lds.d;
SREG = (CELL *) (*((Int (*)(void)) (d0))) ();
ENDD(d0);
setregs();
if (!SREG) {
FAIL();
}
if ((CELL *) B == Y && 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 */
Y = ASP;
HBREG = PROTECT_FROZEN_H(B);
SET_BB(B);
}
PREG = (yamop *) CPREG;
Y = ENV;
JMPNext();
ENDBOp();
BOp(retry_c, lds);
#ifdef YAPOR
CUT_wait_leftmost();
#endif /* YAPOR */
CACHE_Y(B);
CPREG = B_Y->cp_cp;
ENV = B_Y->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(Y);
S_Y = S_Y - PREG->u.lds.extra;
store_args(PREG->u.lds.s);
store_yaam_regs(NEXTOP(PREG, lds), 0);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif
SET_BB(B_Y);
ENDCACHE_Y();
TRYUSERCC:
ASP = YENV;
saveregs();
save_machine_regs();
SREG = (CELL *) YapExecute(PREG->u.lds.p, (CPredicate)(PREG->u.lds.d));
EX = 0L;
restore_machine_regs();
setregs();
if (!SREG) {
FAIL();
}
if ((CELL *) B == Y && 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 */
Y = ASP;
HBREG = PROTECT_FROZEN_H(B);
}
PREG = (yamop *) CPREG;
Y = ENV;
CACHE_A1();
JMPNext();
ENDBOp();
BOp(retry_userc, lds);
#ifdef YAPOR
CUT_wait_leftmost();
#endif /* YAPOR */
CACHE_Y(B);
CPREG = B_Y->cp_cp;
ENV = B_Y->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);
saveregs();
WRITE_LOCK(PredFromDefCode(PREG)->PRWLock);
#if defined(YAPOR) || defined(THREADS)
/*
we do not lock access to the predicate,
we must take extra care here
*/
/*
Ideally, this code should only be executed by
dynamic procedures in YAPOR. Unfortunately, it also seems
to be executed when
running a procedure from within the file that defines it.
*/
if (PredFromDefCode(PREG)->OpcodeOfPred != INDEX_OPCODE) {
/* someone was here before we were */
PREG = (yamop *) PredFromDefCode(PREG)->CodeOfPred;
WRITE_UNLOCK(PredFromDefCode(PREG)->PRWLock);
JMPNext();
}
#endif
IPred((CODEADDR)PredFromDefCode(PREG));
/* IPred can generate errors, it thus must get rid of the lock itself */
setregs();
CACHED_A1() = ARG1;
PREG = (yamop *) PredFromDefCode(PREG)->CodeOfPred;
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();
}
READ_UNLOCK(pe->PRWLock);
d0 = pe->ArityOfPE;
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] = Module_Name((CODEADDR)pe);
ARG1 = (Term) AbsPair(H);
H += 2;
}
if (UndefCode == NULL) {
Atom at;
at = FullLookupAtom("$undefp");
{
Prop p = GetPredPropByFunc(MkFunctor(at, 1),0);
if (p == NIL) {
CFREG = CalculateStackGap();
FAIL();
} else {
PredEntry *undefpe;
undefpe = RepPredProp (p);
READ_LOCK(undefpe->PRWLock);
UndefCode = undefpe;
READ_UNLOCK(undefpe->PRWLock);
}
}
}
PREG = (yamop *)(UndefCode->CodeOfPred);
CFREG = CalculateStackGap();
CACHE_A1();
JMPNext();
ENDBOp();
BOp(spy_pred, e);
{
PredEntry *pe = PredFromDefCode(PREG);
if (!(FlipFlop ^= 1)) {
READ_LOCK(pe->PRWLock);
PREG = (yamop *) pe->TrueCodeOfPred;
READ_UNLOCK(pe->PRWLock);
JMPNext();
}
ENDBOp();
}
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] = Module_Name((CODEADDR)pe);
}
ARG1 = (Term) AbsPair(H);
H += 2;
{
PredEntry *pt0;
pt0 = SpyCode;
P_before_spy = PREG;
PREG = (yamop *) (pt0->CodeOfPred);
CACHE_A1();
#ifdef LOW_LEVEL_TRACER
if (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();
CACHE_Y(Y);
/* 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 = (yamop *) (PREG->u.ld.d);
set_cut(S_Y, B);
B = B_Y;
#ifdef YAPOR
SCH_set_load(B_Y);
#endif /* YAPOR */
SET_BB(B_Y);
ENDCACHE_Y();
JMPNext();
ENDBOp();
/* do a jump, but make sure the alternative pointer is set to
point to the next instruction */
BOp(try_in, l);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_new_alternative(PREG, NEXTOP(PREG,l));
} else
#endif /* YAPOR */
B->cp_ap = NEXTOP(PREG,l);
PREG = (yamop *) (PREG->u.l.l);
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
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = (yamop *) (PREG->u.ld.d);
JMPNext();
ENDBOp();
BOp(trust_in, ldl);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ldl.bl);
restore_at_least_one_arg(PREG->u.ldl.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
PREG = (yamop *) (PREG->u.ldl.d);
JMPNext();
ENDBOp();
BOp(trust, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
pop_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
PREG = (yamop *) (PREG->u.ld.d);
JMPNext();
ENDBOp();
/************************************************************************\
* retry_first and trust_first go straight to the first arg. *
\************************************************************************/
/* relies on an extra S */
BOp(retry_first, ld);
CACHE_Y(B);
restore_yaam_regs(NEXTOP(PREG, ld));
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
d0 = ARG1;
/* der it first */
PREG = (yamop *) (PREG->u.ld.d);
deref_head(d0,retry_first_unk);
retry_first_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0,"argument to retry_first is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
SREG = RepAppl(d0)+1;
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, retry_first_unk, retry_first_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0, "unbound argument to retry_first");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/* just like retry_first, but set B->cp_ap to point to the
beginning of the next group */
BOp(trust_first_in, ldl);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ldl.bl);
restore_at_least_one_arg(PREG->u.ldl.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.lds.d);
deref_head(d0,trust_first_in_unk);
trust_first_in_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_first_in is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
SREG = RepAppl(d0)+1;
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, trust_first_in_unk, trust_first_in_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0,"unbound argument to trust_first_in");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/* recover S and avoid doing a get_list or get_struct */
BOp(trust_first, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
pop_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.ld.d);
deref_head(d0,trust_first_unk);
trust_first_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR,d0,"argument to trust_first is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
SREG = RepAppl(d0)+1;
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, trust_first_unk, trust_first_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR,(CELL)pt0,"argument to trust_first is a variable");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/************************************************************************\
* retry_tail and trust_tail go straight to the tail of a list *
\************************************************************************/
/* relies on an extra S */
BOp(retry_tail, ld);
CACHE_Y(B);
restore_yaam_regs(NEXTOP(PREG, ld));
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
d0 = ARG1;
/* deref it first */
deref_head(d0,retry_tail_unk);
PREG = (yamop *) (PREG->u.ld.d);
retry_tail_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0)+1;
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR,d0,"argument to retry_tail is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
#ifdef DEBUG
/* this should never happen */
saveregs();
Error(SYSTEM_ERROR,d0,"argument to retry_tail is a compound term");
setregs();
JMPNext();
#endif
}
BEGP(pt0);
deref_body(d0, pt0, retry_tail_unk, retry_tail_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR,(CELL)pt0,"unbound argument to retry_tail");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/* just like retry_tail, but set B->cp_ap to point to the
beginning of the next group */
BOp(trust_tail_in, ldl);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ldl.bl);
restore_at_least_one_arg(PREG->u.ldl.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.lds.d);
deref_head(d0,trust_tail_in_unk);
trust_tail_in_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0)+1;
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_tail_in is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_tail_in is a compound term");
setregs();
JMPNext();
#endif
}
BEGP(pt0);
deref_body(d0, pt0, trust_tail_in_unk, trust_tail_in_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, (CELL)pt0, "unbound argument to trust_tail_in");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/* recover S and avoid doing a get_list or get_struct */
BOp(trust_tail, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
pop_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.ld.d);
deref_head(d0,trust_tail_unk);
trust_tail_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0)+1;
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_tail is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
#ifdef DEBUG
/* this should ever happen */
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_tail is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
}
BEGP(pt0);
deref_body(d0, pt0, trust_tail_unk, trust_tail_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, (CELL)pt0, "unbound argument to trust_tail");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/************************************************************************\
* retry_head and trust_head assume the first argument is known *
\************************************************************************/
/* retry an instruction, and avoid a get and unify */
BOp(retry_head, ld);
CACHE_Y(B);
restore_yaam_regs(NEXTOP(PREG, ld));
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
BEGP(pt0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.ld.d);
deref_head(d0,retry_head_unk);
retry_head_nvar:
if (IsPairTerm(d0)) {
/* pair */
pt0 = RepPair(d0);
/* get the head of the list or the first argument of the struct */
d0 = *pt0;
inner_retry_head:
/* inform that we were reading a structure or list */
SP[-1] = (CELL)(pt0+1);
SP[-2] = READ_MODE;
SP -= 2;
deref_head(d0,retry_head_first_unk);
retry_head_first_nvar:
if (IsPairTerm(d0)) {
SREG = RepPair(d0);
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "constant argument to retry_head");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
SREG = RepAppl(d0)+1;
JMPNext();
}
deref_body(d0, pt0, retry_head_first_unk, retry_head_first_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, (CELL)pt0, "unbound argument to retry_head");
setregs();
JMPNext();
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "constant argument to retry_head");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
pt0 = RepAppl(d0)+1;
d0 = *pt0;
goto inner_retry_head;
}
deref_body(d0, pt0, retry_head_unk, retry_head_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, (CELL)pt0, "unbound argument to retry_head");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/* This is a retry head that closes a subblock */
BOp(trust_head_in, ldl);
CACHE_Y(B);
restore_yaam_regs(PREG->u.ldl.bl);
restore_at_least_one_arg(PREG->u.ldl.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
set_cut(S_Y, B->cp_b);
#else
set_cut(S_Y, B_Y->cp_b);
#endif /* FROZEN_STACKS */
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
BEGP(pt0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.ldl.d);
deref_head(d0,trust_head_in_unk);
trust_head_in_nvar:
if (IsPairTerm(d0)) {
/* pair */
pt0 = RepPair(d0);
/* get the head of the list or the first argument of the struct */
d0 = *pt0;
inner_trust_head_in:
/* inform that we were reading a structure or list */
SP[-1] = (CELL)(pt0+1);
SP[-2] = READ_MODE;
SP -= 2;
deref_head(d0,trust_head_in_first_unk);
trust_head_in_first_nvar:
if (IsPairTerm(d0)) {
SREG = RepPair(d0);
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "head of argument to trust_head_in is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
SREG = RepAppl(d0)+1;
JMPNext();
}
deref_body(d0, pt0, trust_head_in_first_unk, trust_head_in_first_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0, "head of argument to trust_head_in is unbound");
setregs();
JMPNext();
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_head_in is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
pt0 = RepAppl(d0)+1;
d0 = *pt0;
goto inner_trust_head_in;
}
deref_body(d0, pt0, trust_head_in_unk, trust_head_in_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0, "unbound argument to trust_head_in");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
BOp(trust_head, ld);
CACHE_Y(B);
#ifdef YAPOR
if (SCH_top_shared_cp(B)) {
SCH_last_alternative(PREG, B_Y);
restore_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B->cp_b);
}
else
#endif /* YAPOR */
{
pop_yaam_regs();
pop_at_least_one_arg(PREG->u.ld.s);
#ifdef FROZEN_STACKS
B_Y = PROTECT_FROZEN_B(B_Y);
#endif /* FROZEN_STACKS */
set_cut(S_Y, B);
}
SET_BB(B_Y);
ENDCACHE_Y();
/* recover the value of SREG */
BEGD(d0);
BEGP(pt0);
d0 = ARG1;
/* deref it first */
PREG = (yamop *) (PREG->u.ld.d);
deref_head(d0,trust_head_unk);
trust_head_nvar:
if (IsPairTerm(d0)) {
/* pair */
pt0 = RepPair(d0);
/* get the head of the list or the first argument of the struct */
d0 = *pt0;
inner_trust_head:
/* inform that we were reading a structure or list */
SP[-1] = (CELL)(pt0+1);
SP[-2] = READ_MODE;
SP -= 2;
deref_head(d0,trust_head_first_unk);
trust_head_first_nvar:
if (IsPairTerm(d0)) {
SREG = RepPair(d0);
JMPNext();
#ifdef DEBUG
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "head of argument to trust_head is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
SREG = RepAppl(d0)+1;
JMPNext();
}
deref_body(d0, pt0, trust_head_first_unk, trust_head_first_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0, "unbound head of argument to trust_head");
setregs();
JMPNext();
} else if (!IsApplTerm(d0)) {
/* this should not happen */
saveregs();
Error(SYSTEM_ERROR, d0, "argument to trust_head is a constant");
setregs();
JMPNext();
#endif /* DEBUG */
} else {
/* appl */
/* pair */
pt0 = RepAppl(d0)+1;
d0 = *pt0;
goto inner_trust_head;
}
deref_body(d0, pt0, trust_head_unk, trust_head_nvar);
/* this should never happen */
#ifdef DEBUG
saveregs();
Error(SYSTEM_ERROR, d0, "unbound argument to trust_head");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
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);
PREG = (yamop *) (PREG->u.llll.l1);
JMPNext();
}
else if (!IsApplTerm(d0)) {
/* constant */
PREG = (yamop *) (PREG->u.llll.l2);
I_R = d0;
JMPNext();
}
else {
/* appl */
PREG = (yamop *) (PREG->u.llll.l3);
SREG = RepAppl(d0);
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, swt_unk, swt_nvar);
/* variable */
PREG = (yamop *) (PREG->u.llll.l4);
JMPNext();
ENDP(pt0);
ENDD(d0);
ENDBOp();
BOp(switch_on_nonv, lll);
BEGD(d0);
d0 = ARG1;
deref_head(d0, swnv_unk);
swnv_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
PREG = (yamop *) (PREG->u.lll.l1);
JMPNext();
}
else if (!IsApplTerm(d0)) {
/* constant */
PREG = (yamop *) (PREG->u.lll.l2);
I_R = d0;
JMPNext();
}
else {
/* appl */
PREG = (yamop *) (PREG->u.lll.l3);
SREG = RepAppl(d0);
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, swnv_unk, swnv_nvar);
#ifdef DEBUG
/* This should never happen */
saveregs();
Error(SYSTEM_ERROR, d0, "unbound argument to switch_nonvar");
setregs();
JMPNext();
#endif
ENDP(pt0);
ENDD(d0);
ENDBOp();
BOp(jump_if_var, l);
BEGD(d0);
d0 = CACHED_A1();
deref_head(d0, jump_if_unk);
/* non var */
jump_if_nonvar:
PREG = NEXTOP(PREG, l);
JMPNext();
BEGP(pt0);
deref_body(d0, pt0, jump_if_unk, jump_if_nonvar);
/* variable */
PREG = (yamop *) (PREG->u.l.l);
ENDP(pt0);
JMPNext();
ENDD(d0);
ENDBOp();
BOp(if_not_then, cll);
BEGD(d0);
d0 = CACHED_A1();
deref_head(d0, if_n_unk);
if_n_nvar:
/* not variable */
if (d0 == PREG->u.cll.c) {
/* equal to test value */
PREG = (yamop *) PREG->u.cll.l2;
JMPNext();
}
else {
/* different from test value */
/* the case to optimise */
PREG = (yamop *) PREG->u.cll.l1;
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, if_n_unk, if_n_nvar);
ENDP(pt0);
/* variable */
PREG = (yamop *) PREG->u.cll.l2;
JMPNext();
ENDD(d0);
ENDBOp();
/* specialised case where the arguments may be:
* a list;
* the empty list;
* some other atom;
* a variable;
*
*/
BOp(switch_list_nl, llll);
BEGD(d0);
d0 = CACHED_A1();
#if UNIQUE_TAG_FOR_PAIRS
deref_list_head(d0, swlnl_unk);
swlnl_list:
#else
deref_head(d0, swlnl_unk);
/* non variable */
swlnl_nvar:
if (IsPairTerm(d0)) {
/* pair */
#endif
PREG = (yamop *) (PREG->u.llll.l1);
SREG = RepPair(d0);
JMPNext();
#if UNIQUE_TAG_FOR_PAIRS
swlnl_nlist:
if (d0 == TermNil) {
#else
}
else if (d0 == TermNil) {
#endif
/* empty list */
PREG = (yamop *) (PREG->u.llll.l2);
JMPNext();
}
else {
/* appl or constant */
if (IsApplTerm(d0)) {
SREG = RepAppl(d0);
PREG = (yamop *) (PREG->u.llll.l3);
JMPNext();
} else {
I_R = d0;
PREG = (yamop *) (PREG->u.llll.l3);
JMPNext();
}
}
BEGP(pt0);
#if UNIQUE_TAG_FOR_PAIRS
swlnl_unk:
deref_list_body(d0, pt0, swlnl_list, swlnl_nlist);
#else
deref_body(d0, pt0, swlnl_unk, swlnl_nvar);
#endif
ENDP(pt0);
/* variable */
PREG = (yamop *) (PREG->u.llll.l4);
JMPNext();
ENDD(d0);
ENDBOp();
/* specialised case where the arguments may be:
* a list;
* the empty list;
* some other atom;
* a variable;
* and we know where we are jumping to!
*
*/
BOp(switch_list_nl_prefetch, 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
PREG = (yamop *) (PREG->u.ollll.l1);
SREG = RepPair(d0);
ALWAYS_GONext();
}
#if UNIQUE_TAG_FOR_PAIRS
swlnl_nlist_p:
#endif
if (d0 == TermNil) {
/* empty list */
PREG = (yamop *) (PREG->u.ollll.l2);
JMPNext();
}
else {
/* appl or constant */
if (IsApplTerm(d0)) {
SREG = RepAppl(d0);
PREG = (yamop *) (PREG->u.ollll.l3);
JMPNext();
} else {
I_R = d0;
PREG = (yamop *) (PREG->u.ollll.l3);
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 */
PREG = (yamop *) (PREG->u.ollll.l4);
JMPNext();
ENDD(d0);
}
ENDBOp();
BOp(switch_nv_list, lll);
BEGD(d0);
d0 = ARG1;
deref_head(d0, swnvl_unk);
swnvl_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
PREG = (yamop *) (PREG->u.lll.l1);
JMPNext();
}
else if (d0 == TermNil) {
/* empty list */
PREG = (yamop *) (PREG->u.lll.l2);
JMPNext();
}
else {
/* appl or other constant */
if (IsApplTerm(d0)) {
PREG = (yamop *) (PREG->u.lll.l3);
SREG = RepAppl(d0);
JMPNext();
} else {
PREG = (yamop *) (PREG->u.lll.l3);
I_R = d0;
JMPNext();
}
ALWAYS_END_PREFETCH();
BEGP(pt0);
deref_body(d0, pt0, swnvl_unk, swnvl_nvar);
#ifdef DEBUG
/* This should never happen */
saveregs();
Error(SYSTEM_ERROR, d0, "switch_nv_list has unbound argument");
setregs();
JMPNext();
#endif /* DEBUG */
ENDP(pt0);
ENDD(d0);
ENDBOp();
/************************************************************************\
* Indexing on ARG1 *
\************************************************************************/
#define HASH_SHIFT 6
BOp(switch_on_func, s);
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.s.s - 1) << 1, /* next, calculate the hash function */
hash = d1 >> (HASH_SHIFT - 1) & Mask;
PREG = NEXTOP(PREG, s);
/* 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) {
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) {
PREG = (yamop *) pt0[1];
JMPNext();
}
}
}
ENDD(d0);
ENDP(pt0);
}
ENDD(d1);
ENDBOp();
BOp(switch_on_cons, s);
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.s.s - 1) << 1, /* next, calculate the hash function */
hash = d1 >> (HASH_SHIFT - 1) & Mask;
PREG = NEXTOP(PREG, s);
/* 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) {
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) {
PREG = (yamop *) pt0[1];
JMPNext();
}
}
}
ENDD(d0);
ENDP(pt0);
}
ENDD(d1);
ENDBOp();
BOp(go_on_func, fll);
BEGD(d0);
d0 = *SREG++;
if (d0 == (CELL) (PREG->u.fll.f)) {
PREG = (yamop *) (PREG->u.fll.l1);
JMPNext();
}
else {
PREG = (yamop *) (PREG->u.fll.l2);
JMPNext();
}
ENDD(d0);
ENDBOp();
BOp(go_on_cons, cll);
BEGD(d0);
d0 = I_R;
if (d0 == PREG->u.cll.c) {
PREG = (yamop *) (PREG->u.cll.l1);
JMPNext();
}
else {
PREG = (yamop *) (PREG->u.cll.l2);
JMPNext();
}
ENDD(d0);
ENDBOp();
BOp(if_func, sl);
BEGD(d1);
d1 = *SREG++;
BEGD(d0);
BEGP(pt0);
d0 = PREG->u.sl.s;
pt0 = (CELL *) NEXTOP(PREG, sl);
while (d0-- > 0) {
if (pt0[0] == d1) {
PREG = (yamop *) (pt0[1]);
JMPNext();
}
else
pt0 += 2;
}
PREG = (yamop *) (PREG->u.sl.l);
JMPNext();
ENDP(pt0);
ENDD(d0);
ENDD(d1);
ENDBOp();
BOp(if_cons, sl);
BEGD(d1);
d1 = I_R;
BEGD(d0);
BEGP(pt0);
d0 = PREG->u.sl.s;
pt0 = (CELL *) NEXTOP(PREG, sl);
while (d0-- > 0) {
if (pt0[0] == d1) {
PREG = (yamop *) (pt0[1]);
JMPNext();
}
else
pt0 += 2;
}
PREG = (yamop *) (PREG->u.sl.l);
JMPNext();
ENDP(pt0);
ENDD(d0);
ENDD(d1);
ENDBOp();
/************************************************************************\
* Indexing on the Head of a list *
\************************************************************************/
BOp(switch_on_head, llll);
BEGD(d0);
BEGP(pt0);
pt0 = SREG;
d0 = *pt0;
deref_head(d0, swh_unk);
/* nonvar */
swh_nvar:
/* advance S if not a list */
++SREG;
if (IsPairTerm(d0)) {
/* pair */
PREG = (yamop *) (PREG->u.llll.l1);
/* push: we are entering within a list */
SP[-1] = (CELL) SREG;
SP[-2] = READ_MODE;
SP -= 2;
SREG = RepPair(d0);
JMPNext();
}
else if (!IsApplTerm(d0)) {
/* constant */
PREG = (yamop *) (PREG->u.llll.l2);
I_R = d0;
JMPNext();
}
else {
/* appl */
/* jump */
PREG = (yamop *) (PREG->u.llll.l3);
/* push: we are entering the compound term */
SP[-1] = (CELL) SREG;
SP[-2] = READ_MODE;
SP -= 2;
SREG = RepAppl(d0);
JMPNext();
}
derefa_body(d0, pt0, swh_unk, swh_nvar);
ENDP(pt0);
/* variable */
PREG = (yamop *) (PREG->u.llll.l4);
JMPNext();
ENDD(d0);
ENDBOp();
/************************************************************************\
* Switch for final block, we know the information is in a choicepoint *
\************************************************************************/
BOp(switch_last, slll);
BEGD(d0);
d0 = B->cp_a1;
deref_head(d0, swl_unk);
swl_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
PREG = (yamop *) (PREG->u.slll.l1);
JMPNext();
}
else if (!IsApplTerm(d0)) {
/* constant */
PREG = (yamop *) (PREG->u.slll.l2);
I_R = d0;
JMPNext();
}
else {
/* appl */
PREG = (yamop *) (PREG->u.slll.l3);
SREG = RepAppl(d0);
JMPNext();
}
BEGP(pt0);
deref_body(d0, pt0, swl_unk, swl_nvar);
#ifdef DEBUG
/* This should never happen */
saveregs();
Error(SYSTEM_ERROR, d0, "switch_last has unbound argument");
setregs();
JMPNext();
#endif
ENDP(pt0);
ENDD(d0);
ENDBOp();
BOp(switch_l_list, slll);
BEGD(d0);
d0 = B->cp_a1;
deref_head(d0, swll_unk);
swll_nvar:
if (IsPairTerm(d0)) {
/* pair */
SREG = RepPair(d0);
PREG = (yamop *) (PREG->u.slll.l1);
JMPNext();
}
else if (d0 == TermNil) {
/* empty list */
PREG = (yamop *) (PREG->u.slll.l2);
JMPNext();
}
else {
/* anything else */
if (IsApplTerm(d0)) {
PREG = (yamop *) (PREG->u.slll.l3);
SREG = RepAppl(d0);
JMPNext();
} else {
PREG = (yamop *) (PREG->u.slll.l3);
I_R = d0;
JMPNext();
}
}
BEGP(pt0);
deref_body(d0, pt0, swll_unk, swll_nvar);
#ifdef DEBUG
/* This should never happen */
saveregs();
Error(SYSTEM_ERROR, d0, "switch_l_list has unbound argument");
setregs();
JMPNext();
#endif
ENDP(pt0);
ENDD(d0);
ENDBOp();
/************************************************************************\
* Basic Primitive Predicates *
\************************************************************************/
Op(p_atom_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, atom_x_unk);
atom_x_nvar:
if (IsAtomTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, atom_x_unk, atom_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_atom_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, atom_y_unk);
atom_y_nvar:
if (IsAtomTerm(d0)) {
PREG = NEXTOP(PREG, y);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, atom_y_unk, atom_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_atomic_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, atomic_x_unk);
atomic_x_nvar:
/* non variable */
if (IsAtomicTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, atomic_x_unk, atomic_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_atomic_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, atomic_y_unk);
atomic_y_nvar:
/* non variable */
if (IsAtomicTerm(d0)) {
PREG = NEXTOP(PREG, y);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, atomic_y_unk, atomic_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_integer_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, integer_x_unk);
integer_x_nvar:
/* non variable */
if (IsIntTerm(d0) || IsLargeIntTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, integer_x_unk, integer_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_integer_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, integer_y_unk);
integer_y_nvar:
/* non variable */
if (IsIntTerm(d0) || IsLargeIntTerm(d0)) {
PREG = NEXTOP(PREG, y);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, integer_y_unk, integer_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_nonvar_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, nonvar_x_unk);
nonvar_x_nvar:
PREG = NEXTOP(PREG, x);
GONext();
BEGP(pt0);
deref_body(d0, pt0, nonvar_x_unk, nonvar_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_nonvar_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, nonvar_y_unk);
nonvar_y_nvar:
PREG = NEXTOP(PREG, y);
GONext();
derefa_body(d0, pt0, nonvar_y_unk, nonvar_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_number_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, number_x_unk);
number_x_nvar:
/* non variable */
if (IsNumTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, number_x_unk, number_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_number_y, x);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, number_y_unk);
number_y_nvar:
/* non variable */
if (IsNumTerm(d0)) {
PREG = NEXTOP(PREG, y);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, number_y_unk, number_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_var_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, var_x_unk);
var_x_nvar:
/* non variable */
FAIL();
BEGP(pt0);
deref_body(d0, pt0, var_x_unk, var_x_nvar);
PREG = NEXTOP(PREG, x);
GONext();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_var_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, var_y_unk);
var_y_nvar:
/* non variable */
FAIL();
derefa_body(d0, pt0, var_y_unk, var_y_nvar);
PREG = NEXTOP(PREG, y);
GONext();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_db_ref_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.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, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, dbref_x_unk, dbref_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_db_ref_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.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, y);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, dbref_y_unk, dbref_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_primitive_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, primi_x_unk);
primi_x_nvar:
/* non variable */
if (IsPrimitiveTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, primi_x_unk, primi_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_primitive_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, primi_y_unk);
primi_y_nvar:
/* non variable */
if (IsPrimitiveTerm(d0)) {
PREG = NEXTOP(PREG, y);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, primi_y_unk, primi_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_compound_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, compound_x_unk);
compound_x_nvar:
/* non variable */
if (IsPairTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else if (IsApplTerm(d0)) {
if (IsExtensionFunctor(FunctorOfTerm(d0))) {
FAIL();
}
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
BEGP(pt0);
deref_body(d0, pt0, compound_x_unk, compound_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_compound_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, compound_y_unk);
compound_y_nvar:
/* non variable */
if (IsPairTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
else if (IsApplTerm(d0)) {
if (IsExtensionFunctor(FunctorOfTerm(d0))) {
FAIL();
}
PREG = NEXTOP(PREG, x);
GONext();
}
else {
FAIL();
}
derefa_body(d0, pt0, compound_y_unk, compound_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_float_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, float_x_unk);
float_x_nvar:
/* non variable */
if (IsFloatTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
FAIL();
BEGP(pt0);
deref_body(d0, pt0, float_x_unk, float_x_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_float_y, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.y;
d0 = *pt0;
deref_head(d0, float_y_unk);
float_y_nvar:
/* non variable */
if (IsFloatTerm(d0)) {
PREG = NEXTOP(PREG, x);
GONext();
}
FAIL();
derefa_body(d0, pt0, float_y_unk, float_y_nvar);
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_cut_by_x, x);
BEGD(d0);
d0 = XREG(PREG->u.x.x);
deref_head(d0, cutby_x_unk);
cutby_x_nvar:
#if defined(SBA) && defined(FROZEN_STACKS)
if (!IsIntegerTerm(d0)) {
#else
if (!IsIntTerm(d0)) {
#endif
FAIL();
}
BEGCHO(pt0);
#if defined(SBA) && defined(FROZEN_STACKS)
pt0 = (choiceptr)IntegerOfTerm(d0);
#else
pt0 = (choiceptr)(LCL0-IntOfTerm(d0));
#endif
/* find where to cut to */
if (SHOULD_CUT_UP_TO(B,pt0)) {
/* Wow, we're gonna cut!!! */
#ifdef YAPOR
CUT_prune_to(pt0);
#else
B = pt0;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
HBREG = PROTECT_FROZEN_H(B);
TR = trim_trail(B, TR, HBREG);
}
ENDCHO(pt0);
PREG = NEXTOP(PREG, x);
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, y);
BEGD(d0);
BEGP(pt0);
pt0 = Y + PREG->u.y.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
if (SHOULD_CUT_UP_TO(B,pt1)) {
/* Wow, we're gonna cut!!! */
#ifdef YAPOR
CUT_prune_to(pt1);
#else
B = pt1;
#endif /* YAPOR */
#ifdef TABLING
abolish_incomplete_subgoals(B);
#endif /* TABLING */
HBREG = PROTECT_FROZEN_H(B);
TR = trim_trail(B, TR, HBREG);
}
PREG = NEXTOP(PREG, y);
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, plus_y_vv_unk, plus_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, plus_y_vc_unk, plus_y_vc_nvar);
saveregs();
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, minus_y_vv_unk, minus_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.ycx.y;
PREG = NEXTOP(PREG, ycx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, minus_y_cv_unk, minus_y_cv_nvar);
saveregs();
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, times_y_vv_unk, times_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, times_y_vc_unk, times_y_vc_nvar);
saveregs();
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();
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();
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();
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();
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, div_y_vv_unk, div_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, div_y_vc_unk, div_y_vc_nvar);
saveregs();
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();
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 = Y + PREG->u.ycx.y;
PREG = NEXTOP(PREG, ycx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, div_y_cv_unk, div_y_cv_nvar);
saveregs();
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, and_y_vv_unk, and_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, and_y_vc_unk, and_y_vc_nvar);
saveregs();
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, or_y_vv_unk, or_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, or_y_vc_unk, or_y_vc_nvar);
saveregs();
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();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
BEGP(pt0);
deref_body(d1, pt0, sll_vv_nvar_unk, sll_vv_nvar_nvar);
saveregs();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d1);
ENDD(d0);
ENDOp();
Op(p_sll_vc, xxc);
BEGD(d0);
d0 = XREG(PREG->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();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_sll_cv, xcx);
BEGD(d0);
d0 = XREG(PREG->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();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_sll_y_vv, yxx);
BEGD(d0);
BEGD(d1);
d0 = XREG(PREG->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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, sll_y_vv_unk, sll_y_vv_nvar);
saveregs();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
BEGP(pt0);
deref_body(d1, pt0, sll_y_vv_nvar_unk, sll_y_vv_nvar_nvar);
saveregs();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d1);
ENDD(d0);
ENDOp();
Op(p_sll_y_vc, yxc);
BEGD(d0);
d0 = XREG(PREG->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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, sll_y_vc_unk, sll_y_vc_nvar);
saveregs();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_sll_y_cv, ycx);
BEGD(d0);
d0 = XREG(PREG->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 = Y + PREG->u.ycx.y;
PREG = NEXTOP(PREG, ycx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, sll_y_cv_unk, sll_y_cv_nvar);
saveregs();
Error(INSTANTIATION_ERROR, TermNil, "X is A<<B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_slr_vv, xxx);
BEGD(d0);
BEGD(d1);
d0 = XREG(PREG->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();
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();
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();
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();
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 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, slr_y_vv_unk, slr_y_vv_nvar);
saveregs();
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();
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 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, slr_y_vc_unk, slr_y_vc_nvar);
saveregs();
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 = Y + PREG->u.ycx.y;
PREG = NEXTOP(PREG, ycx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt0,d0);
#else
*pt0 = d0;
#endif
ENDP(pt0);
GONext();
BEGP(pt0);
deref_body(d0, pt0, slr_y_cv_unk, slr_y_cv_nvar);
saveregs();
Error(INSTANTIATION_ERROR, TermNil, "X is A>>B");
setregs();
FAIL();
ENDP(pt0);
ENDD(d0);
ENDOp();
BOp(call_bfunc_xx, lxx);
BEGD(d0);
BEGD(d1);
d0 = XREG(PREG->u.lxx.x1);
call_bfunc_xx_nvar:
d1 = XREG(PREG->u.lxx.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.lxx.flags;
PREG = NEXTOP(PREG, lxx);
if (v > 0) {
if (flags & GT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else if (v < 0) {
if (flags & LT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else /* if (v == 0) */ {
if (flags & EQ_OK_IN_CMP) {
JMPNext();
} else
FAIL();
}
}
exec_bin_cmp_xx:
BEGD(d2);
d2 = (CELL)(PREG->u.lxx.l);
PREG = NEXTOP(PREG, lxx);
saveregs();
d0 = (CELL) (*((Int (*)(CELL, CELL)) d2)) (d0,d1);
ENDD(d2);
setregs();
if (!d0) {
FAIL();
}
JMPNext();
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_xx_unk, call_bfunc_xx_nvar);
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, lxy);
BEGD(d0);
BEGD(d1);
BEGP(pt0);
pt0 = Y + PREG->u.lxy.y;
d1 = XREG(PREG->u.lxy.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.lxy.flags;
PREG = NEXTOP(PREG, lxy);
if (v > 0) {
if (flags & GT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else if (v < 0) {
if (flags & LT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else /* if (v == 0) */ {
if (flags & EQ_OK_IN_CMP) {
JMPNext();
} else
FAIL();
}
}
exec_bin_cmp_yx:
BEGD(d2);
d2 = (CELL)(PREG->u.lxy.l);
PREG = NEXTOP(PREG, lxy);
saveregs();
d0 = (CELL) (*((Int (*)(CELL, CELL)) d2)) (d0,d1);
ENDD(d2);
setregs();
if (!d0) {
FAIL();
}
JMPNext();
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_yx_unk, call_bfunc_yx_nvar);
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, lxy);
BEGD(d0);
BEGD(d1);
BEGP(pt0);
pt0 = Y + PREG->u.lxy.y;
d0 = XREG(PREG->u.lxy.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.lxy.flags;
PREG = NEXTOP(PREG, lxy);
if (v > 0) {
if (flags & GT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else if (v < 0) {
if (flags & LT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else /* if (v == 0) */ {
if (flags & EQ_OK_IN_CMP) {
JMPNext();
} else
FAIL();
}
}
exec_bin_cmp_xy:
BEGD(d2);
d2 = (CELL)(PREG->u.lxy.l);
PREG = NEXTOP(PREG, lxy);
saveregs();
d0 = (CELL) (*((Int (*)(CELL, CELL)) d2)) (d0,d1);
ENDD(d2);
setregs();
if (!d0) {
FAIL();
}
JMPNext();
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_xy_unk, call_bfunc_xy_nvar);
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, lyy);
BEGD(d0);
BEGD(d1);
BEGP(pt0);
pt0 = Y + PREG->u.lyy.y1;
BEGP(pt1);
pt1 = Y + PREG->u.lyy.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.lyy.flags;
PREG = NEXTOP(PREG, lyy);
if (v > 0) {
if (flags & GT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else if (v < 0) {
if (flags & LT_OK_IN_CMP) {
JMPNext();
} else
FAIL();
} else /* if (v == 0) */ {
if (flags & EQ_OK_IN_CMP) {
JMPNext();
} else
FAIL();
}
}
exec_bin_cmp_yy:
BEGD(d2);
d2 = (CELL)(PREG->u.lyy.l);
PREG = NEXTOP(PREG, lyy);
saveregs();
d0 = (CELL) (*((Int (*)(CELL, CELL)) d2)) (d0,d1);
ENDD(d2);
setregs();
if (!d0) {
FAIL();
}
JMPNext();
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_yy_unk, call_bfunc_yy_nvar);
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 (IUnify(ARG1, ARG2) == FALSE) {
FAIL();
}
PREG = NEXTOP(PREG, e);
GONext();
ENDOp();
Op(p_dif, e);
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,RepPredProp(GetPredPropByFunc(MkFunctor(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) {
FAIL();
}
if (IsAtomOrIntTerm(d0) || IsAtomOrIntTerm(d1)) {
PREG = NEXTOP(PREG, e);
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 = 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 (IUnify(d0, d1) == TRUE) {
/* restore B, no need to restore HB */
B = pt1;
FAIL();
}
/* restore B, and later HB */
PREG = NEXTOP(PREG, e);
B = pt1;
SET_BB(PROTECT_FROZEN_B(pt1));
ENDCHO(pt1);
/* untrail all bindings made by IUnify */
while (TR != pt0) {
BEGD(d1);
d1 = TrailTerm(--TR);
#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);
ENDD(d1);
}
HBREG = B->cp_h;
#ifdef COROUTINING
/* now restore Woken Goals to its old value */
UpdateTimedVar(WokenGoals, OldWokenGoals);
#endif
}
GONext();
BEGP(pt0);
deref_body(d0, pt0, dif_unk1, dif_nvar1);
ENDP(pt0);
/* first argument is unbound */
FAIL();
BEGP(pt0);
deref_body(d1, pt0, dif_nvar1_unk2, dif_nvar1_nvar2);
ENDP(pt0);
/* second argument is unbound */
FAIL();
ENDD(d1);
ENDD(d0);
ENDOp();
Op(p_eq, e);
#ifdef LOW_LEVEL_TRACER
if (do_low_level_trace)
low_level_trace(enter_pred,RepPredProp(GetPredPropByFunc(MkFunctor(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, e);
GONext();
}
if (IsPairTerm(d0)) {
if (!IsPairTerm(d1)) {
FAIL();
}
BEGD(d2);
always_save_pc();
d2 = iequ_complex(RepPair(d0)-1, RepPair(d0)+1,RepPair(d1)-1);
if (d2 == FALSE) {
FAIL();
}
ENDD(d2);
always_set_pc();
PREG = NEXTOP(PREG, e);
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)) {
FAIL();
}
f1 = FunctorOfTerm(d1);
PREG = NEXTOP(PREG, e);
/* we now know f1 is true */
/* deref if a compound term */
if (IsExtensionFunctor(f0)) {
switch ((CELL)f0) {
case (CELL)FunctorDBRef:
if (d0 == d1) GONext();
FAIL();
case (CELL)FunctorLongInt:
if (f1 != FunctorLongInt) FAIL();
if (LongIntOfTerm(d0) == LongIntOfTerm(d1)) GONext();
FAIL();
#ifdef USE_GMP
case (CELL)FunctorBigInt:
if (f1 != FunctorBigInt) FAIL();
if (mpz_cmp(BigIntOfTerm(d0), BigIntOfTerm(d1)) == 0) GONext();
FAIL();
#endif
case (CELL)FunctorDouble:
if (f1 != FunctorDouble) FAIL();
if (FloatOfTerm(d0) == FloatOfTerm(d1)) GONext();
FAIL();
default:
FAIL();
}
}
if (f0 != f1) {
FAIL();
}
always_save_pc();
BEGD(d2);
d2 = iequ_complex(RepAppl(d0), RepAppl(d0)+ArityOfFunctor(f0), RepAppl(d1));
if (d2 == FALSE) {
FAIL();
}
ENDD(d2);
always_set_pc();
GONext();
}
FAIL();
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!! */
FAIL();
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!! */
FAIL();
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) {
FAIL();
}
PREG = NEXTOP(PREG, e);
GONext();
ENDP(pt1);
ENDD(d1);
ENDP(pt0);
ENDD(d0);
ENDOp();
Op(p_arg_vv, xxx);
#ifdef LOW_LEVEL_TRACER
if (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(GetPredPropByFunc(MkFunctor(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();
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();
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();
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();
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();
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
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();
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();
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
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();
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,
MkIntegerTerm(d0),"arg 1 of arg/3");
saveregs();
}
*/
FAIL();
}
BEGP(pt1);
pt1 = Y + PREG->u.yxx.y;
PREG = NEXTOP(PREG, yxx);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt1,pt0[d0]);
#else
*pt1 = pt0[d0];
#endif
ENDP(pt1);
GONext();
ENDP(pt0);
}
else if (IsPairTerm(d1)) {
BEGP(pt0);
pt0 = RepPair(d1);
if (d0 != 1 && d0 != 2) {
if ((Int)d0 < 0) {
saveregs();
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,
MkIntegerTerm(d0),"arg 1 of arg/3");
setregs();
}
FAIL();
}
BEGP(pt1);
pt1 = Y + 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
GONext();
ENDP(pt1);
ENDP(pt0);
}
else {
saveregs();
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();
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,
MkIntegerTerm(d0),"arg 1 of arg/3");
setregs();
}
*/
FAIL();
}
BEGP(pt1);
pt1 = Y + PREG->u.yxc.y;
PREG = NEXTOP(PREG, yxc);
#if defined(SBA) && defined(FROZEN_STACKS)
Bind_Local(pt1,pt0[d0]);
#else
*pt1 = pt0[d0];
#endif
ENDP(pt1);
GONext();
ENDP(pt0);
}
else if (IsPairTerm(d1)) {
BEGP(pt0);
pt0 = RepPair(d1);
if (d0 != 1 && d0 != 2) {
if ((Int)d0 < 0) {
saveregs();
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,
MkIntegerTerm(d0),"arg 1 of arg/3");
setregs();
}
FAIL();
}
BEGP(pt1);
pt1 = Y + 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
ENDP(pt1);
GONext();
ENDP(pt0);
}
else {
saveregs();
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
Error(TYPE_ERROR_INTEGER,d1,"functor/3");
setregs();
FAIL();
}
if (!IsAtomicTerm(d0)) {
saveregs();
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();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(0, Y, NEXTOP(NEXTOP(PREG,xxx),sla));
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();
Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,MkIntegerTerm(d1),"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
deref_body(d1, pt1, func2s_unk2, func2s_nvar2);
saveregs();
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();
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 (do_low_level_trace) {
RESET_VARIABLE(H);
H[1] = XREG(PREG->u.xcx.c);
H[2] = XREG(PREG->u.xcx.xi);
low_level_trace(enter_pred,RepPredProp(GetPredPropByFunc(MkFunctor(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();
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();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(0, Y, NEXTOP(NEXTOP(PREG,xcx),sla));
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.xxx.x) = d0;
PREG = NEXTOP(NEXTOP(NEXTOP(PREG, xxx),sla),l);
GONext();
} else {
saveregs();
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
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();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(0, Y, NEXTOP(NEXTOP(PREG,xxc),sla));
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
Error(TYPE_ERROR_INTEGER,d1,"functor/3");
setregs();
FAIL();
}
if (!IsAtomicTerm(d0)) {
saveregs();
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 = Y + 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
ENDP(pt1);
GONext();
} else if ((Int)d1 > 0) {
/* now let's build a compound term */
if (!IsAtomTerm(d0)) {
saveregs();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(0, Y, NEXTOP(NEXTOP(PREG,yxx),sla));
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 = Y + 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
ENDP(pt1);
GONext();
} else if (d1 == 0) {
BEGP(pt1);
pt1 = Y + 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
ENDP(pt1);
GONext();
} else {
saveregs();
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();
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();
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 (do_low_level_trace) {
RESET_VARIABLE(H);
H[1] = XREG(PREG->u.ycx.c);
H[2] = XREG(PREG->u.ycx.xi);
low_level_trace(enter_pred,RepPredProp(GetPredPropByFunc(MkFunctor(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();
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 = Y + 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
ENDP(pt1);
GONext();
}
else if ((Int)d1 > 0) {
/* now let's build a compound term */
if (!IsAtomTerm(d0)) {
saveregs();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(0, Y, NEXTOP(NEXTOP(PREG,ycx),sla));
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 = Y + 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
ENDP(pt1);
GONext();
} else if (d1 == 0) {
BEGP(pt1);
pt1 = Y + 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
ENDP(pt1);
GONext();
} else {
saveregs();
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();
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 (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(GetPredPropByFunc(MkFunctor(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();
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 = Y + 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
ENDP(pt1);
GONext();
}
if (d1 == 0) {
BEGP(pt1);
pt1 = Y + 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
ENDP(pt1);
GONext();
}
if (!IsAtomTerm(d0)) {
saveregs();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
/* now let's build a compound term */
if (!IsAtomTerm(d0)) {
saveregs();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(0, Y, NEXTOP(NEXTOP(PREG,yxc),sla));
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 = Y + 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
ENDP(pt1);
ENDD(d1);
GONext();
BEGP(pt1);
deref_body(d0, pt1, func2s_y_unk_vc, func2s_y_nvar_vc);
saveregs();
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 (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(GetPredPropByFunc(MkFunctor(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();
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 (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(GetPredPropByFunc(MkFunctor(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 = Y+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 = Y+PREG->u.xyx.y2;
XREG(PREG->u.xyx.x1) = TermDot;
PREG = NEXTOP(PREG, xyx);
*pt0 = MkIntTerm(2);
GONext();
} else {
CELL *pt0 = Y+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();
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 (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(GetPredPropByFunc(MkFunctor(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 = Y+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 = Y+PREG->u.yxx.y;
XREG(PREG->u.yxx.x1) = MkIntTerm(2);
PREG = NEXTOP(PREG, yxx);
*pt0 = TermDot;
GONext();
} else {
CELL *pt0 = Y+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();
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 (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(GetPredPropByFunc(MkFunctor(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 = Y+PREG->u.yyx.y1;
CELL *pt1 = Y+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 = Y+PREG->u.yyx.y1;
CELL *pt1 = Y+PREG->u.yyx.y2;
PREG = NEXTOP(PREG, yyx);
*pt0 = TermDot;
*pt1 = MkIntTerm(2);
GONext();
} else {
CELL *pt0 = Y+PREG->u.yyx.y1;
CELL *pt1 = Y+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();
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 (do_low_level_trace)
low_level_trace(enter_pred,RepPredProp(GetPredPropByFunc(MkFunctor(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) 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) 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();
Error(TYPE_ERROR_INTEGER,ARG3,"functor/3");
setregs();
FAIL();
}
if (!IsAtomicTerm(d0)) {
saveregs();
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();
Error(TYPE_ERROR_ATOM,d0,"functor/3");
setregs();
FAIL();
}
BEGP(pt1);
if (!IsAtomTerm(d0)) {
FAIL();
}
else
d0 = (CELL) 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();
gc(3, Y, NEXTOP(NEXTOP(PREG,e),sla));
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();
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) WakeUp(pt0);
bind_func_var_3nvar:
#endif
GONext();
BEGP(pt1);
deref_body(d1, pt1, func_var_3unk, func_var_3nvar);
saveregs();
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();
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;
SMALLUNSGN mod = IntOfTerm(Deref(ARG2));
CACHE_Y_AS_ENV(Y);
#ifndef NO_CHECKING
check_stack(NoStackCall, H);
#endif
BEGD(d0);
d0 = ARG1;
if (PredGoalExpansion->OpcodeOfPred != UNDEF_OPCODE) {
d0 = ExecuteCallMetaCall(mod);
}
deref_head(d0, execute_unk);
execute_nvar:
if (IsApplTerm(d0)) {
Functor f = FunctorOfTerm(d0);
if (IsExtensionFunctor(f)) {
d0 = ExecuteCallMetaCall(mod);
goto execute_nvar;
}
pen = RepPredProp(PredPropByFunc(f, mod));
if (pen->PredFlags & MetaPredFlag) {
if (f == FunctorModule) {
Term tmod = LookupModule(ArgOfTerm(1,d0));
if (!IsVarTerm(tmod) && IsAtomTerm(tmod) &&
LookupModule(tmod) == mod) {
d0 = ArgOfTerm(2,d0);
goto execute_nvar;
}
}
d0 = ExecuteCallMetaCall(mod);
goto execute_nvar;
}
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)) {
pen = RepPredProp(PredPropByAtom(AtomOfTerm(d0), mod));
} else {
d0 = ExecuteCallMetaCall(mod);
goto execute_nvar;
}
/* code copied from call */
ENV = E_Y;
/* Try to preserve the environment */
E_Y = (CELL *) (((char *) Y) + PREG->u.sla.s);
CPREG =
(yamop *) NEXTOP(PREG, sla);
ALWAYS_LOOKAHEAD(pen->OpcodeOfPred);
PREG = (yamop *) 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 (do_low_level_trace)
low_level_trace(enter_pred,pen,XREGS+1);
#endif /* LOW_LEVEL_TRACER */
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (E_Y > (CELL *) top_b || E_Y < H) E_Y = (CELL *) top_b;
#else
if (E_Y > (CELL *) top_b) E_Y = (CELL *) top_b;
#endif
}
#else
if (E_Y > (CELL *) B) {
E_Y = (CELL *) B;
}
#endif /* FROZEN_STACKS */
WRITEBACK_Y_AS_ENV();
/* setup GB */
E_Y[E_CB] = (CELL) B;
#ifdef YAPOR
SCH_check_requests();
#endif /* YAPOR */
ALWAYS_GONext();
ALWAYS_END_PREFETCH();
BEGP(pt1);
deref_body(d0, pt1, execute_unk, execute_nvar);
d0 = ExecuteCallMetaCall(mod);
goto execute_nvar;
ENDP(pt1);
ENDD(d0);
ENDCACHE_Y_AS_ENV();
}
ENDBOp();
BOp(p_execute_within, sla);
{
PredEntry *pen;
SMALLUNSGN mod = CurrentModule;
CACHE_Y_AS_ENV(Y);
#ifndef NO_CHECKING
check_stack(NoStackCall, H);
#endif
BEGD(d0);
d0 = ARG1;
if (PredGoalExpansion->OpcodeOfPred != UNDEF_OPCODE) {
d0 = ExecuteCallMetaCall(mod);
}
deref_head(d0, execute_within_unk);
execute_within_nvar:
if (IsApplTerm(d0)) {
Functor f = FunctorOfTerm(d0);
if (IsExtensionFunctor(f)) {
d0 = ExecuteCallMetaCall(mod);
goto execute_within_nvar;
}
pen = RepPredProp(PredPropByFunc(f, mod));
if (pen->PredFlags & MetaPredFlag) {
if (f == FunctorModule) {
Term tmod;
tmod = ArgOfTerm(1,d0);
if (!IsVarTerm(tmod) && IsAtomTerm(tmod) &&
mod == LookupModule(tmod)) {
d0 = ArgOfTerm(2,d0);
goto execute_within_nvar;
}
}
d0 = ExecuteCallMetaCall(mod);
goto execute_within_nvar;
}
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 (AtomOfTerm(d0) == AtomCut) {
choiceptr pt0;
pt0 = (choiceptr)(ENV[E_CB]);
/* find where to cut to */
if (SHOULD_CUT_UP_TO(B,pt0)) {
#ifdef YAPOR
/* Wow, we're gonna cut!!! */
CUT_prune_to(pt0);
#else
/* Wow, we're gonna cut!!! */
B = pt0;
#endif /* YAPOR */
HB = PROTECT_FROZEN_H(B);
}
PREG = NEXTOP(PREG, sla);
JMPNext();
}else
pen = RepPredProp(PredPropByAtom(AtomOfTerm(d0), mod));
} else {
d0 = ExecuteCallMetaCall(mod);
goto execute_within_nvar;
}
/* code copied from call */
ENV = E_Y;
/* Try to preserve the environment */
E_Y = (CELL *) (((char *) Y) + PREG->u.sla.s);
CPREG =
(yamop *) NEXTOP(PREG, sla);
ALWAYS_LOOKAHEAD(pen->OpcodeOfPred);
PREG = (yamop *) 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 (do_low_level_trace)
low_level_trace(enter_pred,pen,XREGS+1);
#endif /* LOW_LEVEL_TRACER */
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (E_Y > (CELL *) top_b || E_Y < H) E_Y = (CELL *) top_b;
#else
if (E_Y > (CELL *) top_b) E_Y = (CELL *) top_b;
#endif
}
#else
if (E_Y > (CELL *) B) {
E_Y = (CELL *) B;
}
#endif /* FROZEN_STACKS */
WRITEBACK_Y_AS_ENV();
/* setup GB */
if (pen->PredFlags & CutTransparentPredFlag)
E_Y[E_CB] = ENV[E_CB];
else
E_Y[E_CB] = (CELL)B;
#ifdef YAPOR
SCH_check_requests();
#endif /* YAPOR */
ALWAYS_GONext();
ALWAYS_END_PREFETCH();
BEGP(pt1);
deref_body(d0, pt1, execute_within_unk, execute_within_nvar);
d0 = ExecuteCallMetaCall(mod);
goto execute_within_nvar;
ENDP(pt1);
ENDD(d0);
ENDCACHE_Y_AS_ENV();
}
ENDBOp();
BOp(p_last_execute_within, sla);
{
PredEntry *pen;
SMALLUNSGN mod = CurrentModule;
CACHE_Y_AS_ENV(Y);
#ifndef NO_CHECKING
check_stack(NoStackCall, H);
#endif
BEGD(d0);
d0 = ARG1;
if (PredGoalExpansion->OpcodeOfPred != UNDEF_OPCODE) {
d0 = ExecuteCallMetaCall(mod);
}
deref_head(d0, last_execute_within_unk);
last_execute_within_nvar:
if (IsApplTerm(d0)) {
Functor f = FunctorOfTerm(d0);
if (IsExtensionFunctor(f)) {
d0 = ExecuteCallMetaCall(mod);
goto last_execute_within_nvar;
}
pen = RepPredProp(PredPropByFunc(f, mod));
if (pen->PredFlags & MetaPredFlag) {
if (f == FunctorModule) {
Term tmod = ArgOfTerm(1,d0);
if (!IsVarTerm(tmod) && IsAtomTerm(tmod) &&
mod == LookupModule(tmod)) {
d0 = ArgOfTerm(2,d0);
goto last_execute_within_nvar;
}
}
d0 = ExecuteCallMetaCall(mod);
goto last_execute_within_nvar;
}
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 (AtomOfTerm(d0) == AtomCut) {
choiceptr pt0;
pt0 = (choiceptr)(ENV[E_CB]);
/* find where to cut to */
if (SHOULD_CUT_UP_TO(B,pt0)) {
#ifdef YAPOR
/* Wow, we're gonna cut!!! */
CUT_prune_to(pt0);
#else
/* Wow, we're gonna cut!!! */
B = pt0;
#endif /* YAPOR */
HB = PROTECT_FROZEN_H(B);
}
PREG = NEXTOP(PREG, sla);
JMPNext();
}else
pen = RepPredProp(PredPropByAtom(AtomOfTerm(d0), mod));
} else {
d0 = ExecuteCallMetaCall(mod);
goto last_execute_within_nvar;
}
ALWAYS_LOOKAHEAD(pen->OpcodeOfPred);
BEGD(d0);
if (pen->PredFlags & CutTransparentPredFlag)
d0 = ENV[E_CB];
else
d0 = (CELL)B;
PREG = (yamop *) 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 */
/* do deallocate */
CPREG = (yamop *) E_Y[E_CP];
E_Y = ENV = (CELL *) E_Y[E_E];
#ifdef FROZEN_STACKS
{
choiceptr top_b = PROTECT_FROZEN_B(B);
#ifdef SBA
if (E_Y > (CELL *) top_b || E_Y < H) E_Y = (CELL *) top_b;
#else
if (E_Y > (CELL *) top_b) E_Y = (CELL *) top_b;
#endif
else E_Y = (CELL *)((CELL)E_Y + ENV_Size(CPREG));
}
#else
if (E_Y > (CELL *)B) {
E_Y = (CELL *)B;
}
else {
E_Y = (CELL *) ((CELL) E_Y + ENV_Size(CPREG));
}
#endif /* FROZEN_STACKS */
WRITEBACK_Y_AS_ENV();
/* setup GB */
E_Y[E_CB] = d0;
ENDD(d0);
ALWAYS_GONext();
ALWAYS_END_PREFETCH();
BEGP(pt1);
deref_body(d0, pt1, last_execute_within_unk, last_execute_within_nvar);
d0 = ExecuteCallMetaCall(mod);
goto last_execute_within_nvar;
ENDP(pt1);
ENDD(d0);
ENDCACHE_Y_AS_ENV();
}
ENDBOp();
#if !USE_THREADED_CODE
default:
saveregs();
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);
#if PUSH_REGS
#undef REGS
#define REGS (*regp)
#else
#endif /* PUSH_REGS */
#if SHADOW_REGS
#undef REGS
#endif /* SHADOW_REGS */
#endif
}
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