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/***********************************************************
*
* $Header: /usr/src/local/lwall/perl5/RCS/pp.h,v 4.1 92/08/07 18:26:20 lwall Exp Locker: lwall $
*
* Description:
* Push/Pop code defs.
*
* Standards:
*
* Created:
* Mon Jun 15 16:47:20 1992
*
* Author:
* Larry Wall <lwall@netlabs.com>
*
* $Log: pp.h,v $
* Revision 4.1 92/08/07 18:26:20 lwall
*
*
**********************************************************/
#define ARGS
#define ARGSproto void
#define dARGS
#define PP(s) OP* s(ARGS) dARGS
#define SP sp
#define MARK mark
#define TARG targ
#define POPMARK (*markstack_ptr--)
#define dSP register SV **sp = stack_sp
#define dMARK register SV **mark = stack_base + POPMARK
#define dORIGMARK I32 origmark = mark - stack_base
#define SETORIGMARK origmark = mark - stack_base
#define ORIGMARK stack_base + origmark
#define SPAGAIN sp = stack_sp
#define MSPAGAIN sp = stack_sp; mark = ORIGMARK
#define GETTARGETSTACKED targ = (op->op_flags & OPf_STACKED ? POPs : PAD_SV(op->op_targ))
#define dTARGETSTACKED SV * GETTARGETSTACKED
#define GETTARGET targ = PAD_SV(op->op_targ)
#define dTARGET SV * GETTARGET
#define GETATARGET targ = (op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(op->op_targ))
#define dATARGET SV * GETATARGET
#define dTARG SV *targ
#define GETavn(a,g,st) \
a = sv_2av(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 1)
#define GEThvn(h,g,st) \
h = sv_2hv(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 1)
#define GETav(a,g,st) \
a = sv_2av(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 0)
#define GEThv(h,g,st) \
h = sv_2hv(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 0)
#define GETcv(r,g,st) \
r = sv_2cv(POPs, &st, &g, 0)
#define NORMAL op->op_next
#define DIE return die
#define PROP if (dying) return die("%s", dying);
#define PUTBACK stack_sp = sp
#define RETURN return PUTBACK, NORMAL
#define RETURNOP(o) return PUTBACK, o
#define RETURNX(x) return x, PUTBACK, NORMAL
#define POPs (*sp--)
#define POPp (SvPVx(POPs, na))
#define POPn (SvNVx(POPs))
#define POPi ((int)SvIVx(POPs))
#define POPl ((long)SvIVx(POPs))
#define TOPs (*sp)
#define TOPp (SvPV(TOPs, na))
#define TOPn (SvNV(TOPs))
#define TOPi ((int)SvIV(TOPs))
#define TOPl ((long)SvIV(TOPs))
/* Go to some pains in the rare event that we must extend the stack. */
#define EXTEND(p,n) do { if (stack_max - p < (n)) { \
av_fill(stack, (p - stack_base) + (n) + 128); \
sp = AvARRAY(stack) + (sp - stack_base); \
stack_base = AvARRAY(stack); \
stack_max = stack_base + AvMAX(stack) - 1; \
} } while (0)
/* Same thing, but update mark register too. */
#define MEXTEND(p,n) do {if (stack_max - p < (n)) { \
av_fill(stack, (p - stack_base) + (n) + 128); \
sp = AvARRAY(stack) + (sp - stack_base); \
mark = AvARRAY(stack) + (mark - stack_base); \
stack_base = AvARRAY(stack); \
stack_max = stack_base + AvMAX(stack) - 1; \
} } while (0)
#define PUSHs(s) (*++sp = (s))
#define PUSHTARG do { SvSETMAGIC(TARG); PUSHs(TARG); } while (0)
#define PUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); PUSHTARG; } while (0)
#define PUSHn(n) do { sv_setnv(TARG, (n)); PUSHTARG; } while (0)
#define PUSHi(i) do { sv_setiv(TARG, (i)); PUSHTARG; } while (0)
#define XPUSHs(s) do { EXTEND(sp,1); (*++sp = (s)); } while (0)
#define XPUSHTARG do { SvSETMAGIC(TARG); XPUSHs(TARG); } while (0)
#define XPUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } while (0)
#define XPUSHn(n) do { sv_setnv(TARG, (n)); XPUSHTARG; } while (0)
#define XPUSHi(i) do { sv_setiv(TARG, (i)); XPUSHTARG; } while (0)
#define MXPUSHs(s) do { MEXTEND(sp,1); (*++sp = (s)); } while (0)
#define MXPUSHTARG do { SvSETMAGIC(TARG); XPUSHs(TARG); } while (0)
#define MXPUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } while (0)
#define MXPUSHn(n) do { sv_setnv(TARG, (n)); XPUSHTARG; } while (0)
#define MXPUSHi(i) do { sv_setiv(TARG, (i)); XPUSHTARG; } while (0)
#define SETs(s) (*sp = s)
#define SETTARG do { SvSETMAGIC(TARG); SETs(TARG); } while (0)
#define SETp(p,l) do { sv_setpvn(TARG, (p), (l)); SETTARG; } while (0)
#define SETn(n) do { sv_setnv(TARG, (n)); SETTARG; } while (0)
#define SETi(i) do { sv_setiv(TARG, (i)); SETTARG; } while (0)
#define dTOPss SV *sv = TOPs
#define dPOPss SV *sv = POPs
#define dTOPnv double value = TOPn
#define dPOPnv double value = POPn
#define dTOPiv I32 value = TOPi
#define dPOPiv I32 value = POPi
#define dPOPPOPssrl SV *rstr = POPs; SV *lstr = POPs
#define dPOPPOPnnrl double right = POPn; double left = POPn
#define dPOPPOPiirl I32 right = POPi; I32 left = POPi
#define dPOPTOPssrl SV *rstr = POPs; SV *lstr = TOPs
#define dPOPTOPnnrl double right = POPn; double left = TOPn
#define dPOPTOPiirl I32 right = POPi; I32 left = TOPi
#define RETPUSHYES RETURNX(PUSHs(&sv_yes))
#define RETPUSHNO RETURNX(PUSHs(&sv_no))
#define RETPUSHUNDEF RETURNX(PUSHs(&sv_undef))
#define RETSETYES RETURNX(SETs(&sv_yes))
#define RETSETNO RETURNX(SETs(&sv_no))
#define RETSETUNDEF RETURNX(SETs(&sv_undef))
#define ARGTARG op->op_targ
#define MAXARG op->op_private
#define SWITCHSTACK(f,t) AvFILL(f) = sp - stack_base; \
stack_base = AvARRAY(t); \
stack_max = stack_base + AvMAX(t); \
sp = stack_base + AvFILL(t); \
stack = t;
/* XXX need to diffentiate on marked operators? */
#define FETCH_GV(s) PUTBACK, s = fetch_gv(op,1), SPAGAIN
#define FETCH_GV1(s) PUTBACK, s = fetch_gv(op,1), SPAGAIN
#define FETCH_GV2(s) PUTBACK, s = fetch_gv(op,2), SPAGAIN
#define FETCH_IO(s) PUTBACK, s = fetch_io(op,1), SPAGAIN
#define FETCH_IO1(s) PUTBACK, s = fetch_io(op,1), SPAGAIN
#define FETCH_IO2(s) PUTBACK, s = fetch_io(op,2), SPAGAIN
#define ENTER push_scope()
#define LEAVE pop_scope()
#define SAVEINT(i) save_int((int*)(&i));
#define SAVEI32(i) save_int((I32*)(&i));
#define SAVELONG(l) save_int((long*)(&l));
#define SAVESPTR(s) save_sptr((SV**)(&s))
#define SAVETMPS save_int(&tmps_floor), tmps_floor = tmps_ix
#define SAVEFREESV(s) save_freesv((SV*)(s))
#define SAVEFREEOP(o) save_freeop((OP*)(o))
#define SAVEFREEPV(p) save_freepv((char*)(p))
#define SAVECLEARSV(sv) save_clearsv((SV**)(&sv))
#define SAVEDELETE(h,k,l) save_delete((HV*)(h), (char*)(k), (I32)l)
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