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79072805 LW |
1 | /*********************************************************** |
2 | * | |
3 | * $Header: /usr/src/local/lwall/perl5/RCS/pp.h,v 4.1 92/08/07 18:26:20 lwall Exp Locker: lwall $ | |
4 | * | |
5 | * Description: | |
6 | * Push/Pop code defs. | |
7 | * | |
8 | * Standards: | |
9 | * | |
10 | * Created: | |
11 | * Mon Jun 15 16:47:20 1992 | |
12 | * | |
13 | * Author: | |
14 | * Larry Wall <lwall@netlabs.com> | |
15 | * | |
16 | * $Log: pp.h,v $ | |
17 | * Revision 4.1 92/08/07 18:26:20 lwall | |
18 | * | |
19 | * | |
20 | **********************************************************/ | |
21 | ||
22 | #define ARGS | |
23 | #define ARGSproto | |
24 | #define dARGS | |
25 | #define PP(s) OP* s(ARGS) dARGS | |
26 | ||
27 | #define SP sp | |
28 | #define MARK mark | |
29 | #define TARG targ | |
30 | ||
31 | #define POPMARK (*markstack_ptr--) | |
32 | #define dSP register SV **sp = stack_sp | |
33 | #define dMARK register SV **mark = stack_base + POPMARK | |
34 | #define dORIGMARK I32 origmark = mark - stack_base | |
35 | #define SETORIGMARK origmark = mark - stack_base | |
36 | #define ORIGMARK stack_base + origmark | |
37 | ||
38 | #define SPAGAIN sp = stack_sp | |
39 | #define MSPAGAIN sp = stack_sp; mark = ORIGMARK | |
40 | ||
41 | #define GETTARGETSTACKED targ = (op->op_flags & OPf_STACKED ? POPs : PAD_SV(op->op_targ)) | |
42 | #define dTARGETSTACKED SV * GETTARGETSTACKED | |
43 | ||
44 | #define GETTARGET targ = PAD_SV(op->op_targ) | |
45 | #define dTARGET SV * GETTARGET | |
46 | ||
47 | #define GETATARGET targ = (op->op_flags & OPf_STACKED ? sp[-1] : PAD_SV(op->op_targ)) | |
48 | #define dATARGET SV * GETATARGET | |
49 | ||
50 | #define dTARG SV *targ | |
51 | ||
52 | #define GETavn(a,g,st) \ | |
53 | a = sv_2av(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 1) | |
54 | #define GEThvn(h,g,st) \ | |
55 | h = sv_2hv(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 1) | |
56 | #define GETav(a,g,st) \ | |
57 | a = sv_2av(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 0) | |
58 | #define GEThv(h,g,st) \ | |
59 | h = sv_2hv(cGVOP->op_gv ? (SV*)cGVOP->op_gv : POPs, &st, &g, 0) | |
60 | #define GETcv(r,g,st) \ | |
61 | r = sv_2cv(POPs, &st, &g, 0) | |
62 | ||
63 | #define NORMAL op->op_next | |
64 | #define DIE return die | |
65 | #define PROP if (dying) return die("%s", dying); | |
66 | ||
67 | #define PUTBACK stack_sp = sp | |
68 | #define RETURN return PUTBACK, NORMAL | |
69 | #define RETURNOP(o) return PUTBACK, o | |
70 | #define RETURNX(x) return x, PUTBACK, NORMAL | |
71 | ||
72 | #define POPs (*sp--) | |
73 | #define POPp (SvPVnx(POPs)) | |
74 | #define POPn (SvNVnx(POPs)) | |
75 | #define POPi ((int)SvIVnx(POPs)) | |
76 | #define POPl ((long)SvIVnx(POPs)) | |
77 | ||
78 | #define TOPs (*sp) | |
79 | #define TOPp (SvPVn(TOPs)) | |
80 | #define TOPn (SvNVn(TOPs)) | |
81 | #define TOPi ((int)SvIVn(TOPs)) | |
82 | #define TOPl ((long)SvNVn(TOPs)) | |
83 | ||
84 | /* Go to some pains in the rare event that we must extend the stack. */ | |
85 | #define EXTEND(p,n) do { if (stack_max - p < (n)) { \ | |
86 | av_fill(stack, (p - stack_base) + (n)); \ | |
87 | sp = AvARRAY(stack) + (sp - stack_base); \ | |
88 | stack_base = AvARRAY(stack); \ | |
89 | stack_max = stack_base + AvMAX(stack); \ | |
90 | } } while (0) | |
91 | /* Same thing, but update mark register too. */ | |
92 | #define MEXTEND(p,n) do {if (stack_max - p < (n)) { \ | |
93 | av_fill(stack, (p - stack_base) + (n)); \ | |
94 | sp = AvARRAY(stack) + (sp - stack_base); \ | |
95 | mark = AvARRAY(stack) + (mark - stack_base); \ | |
96 | stack_base = AvARRAY(stack); \ | |
97 | stack_max = stack_base + AvMAX(stack); \ | |
98 | } } while (0) | |
99 | ||
100 | #define PUSHs(s) (*++sp = (s)) | |
101 | #define PUSHTARG do { SvSETMAGIC(TARG); PUSHs(TARG); } while (0) | |
102 | #define PUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); PUSHTARG; } while (0) | |
103 | #define PUSHn(n) do { sv_setnv(TARG, (n)); PUSHTARG; } while (0) | |
104 | #define PUSHi(i) do { sv_setiv(TARG, (i)); PUSHTARG; } while (0) | |
105 | ||
106 | #define XPUSHs(s) do { EXTEND(sp,1); (*++sp = (s)); } while (0) | |
107 | #define XPUSHTARG do { SvSETMAGIC(TARG); XPUSHs(TARG); } while (0) | |
108 | #define XPUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } while (0) | |
109 | #define XPUSHn(n) do { sv_setnv(TARG, (n)); XPUSHTARG; } while (0) | |
110 | #define XPUSHi(i) do { sv_setiv(TARG, (i)); XPUSHTARG; } while (0) | |
111 | ||
112 | #define MXPUSHs(s) do { MEXTEND(sp,1); (*++sp = (s)); } while (0) | |
113 | #define MXPUSHTARG do { SvSETMAGIC(TARG); XPUSHs(TARG); } while (0) | |
114 | #define MXPUSHp(p,l) do { sv_setpvn(TARG, (p), (l)); XPUSHTARG; } while (0) | |
115 | #define MXPUSHn(n) do { sv_setnv(TARG, (n)); XPUSHTARG; } while (0) | |
116 | #define MXPUSHi(i) do { sv_setiv(TARG, (i)); XPUSHTARG; } while (0) | |
117 | ||
118 | #define SETs(s) (*sp = s) | |
119 | #define SETTARG do { SvSETMAGIC(TARG); SETs(TARG); } while (0) | |
120 | #define SETp(p,l) do { sv_setpvn(TARG, (p), (l)); SETTARG; } while (0) | |
121 | #define SETn(n) do { sv_setnv(TARG, (n)); SETTARG; } while (0) | |
122 | #define SETi(i) do { sv_setiv(TARG, (i)); SETTARG; } while (0) | |
123 | ||
124 | #define dTOPss SV *sv = TOPs | |
125 | #define dPOPss SV *sv = POPs | |
126 | #define dTOPnv double value = TOPn | |
127 | #define dPOPnv double value = POPn | |
128 | #define dTOPiv I32 value = TOPi | |
129 | #define dPOPiv I32 value = POPi | |
130 | ||
131 | #define dPOPPOPssrl SV *rstr = POPs; SV *lstr = POPs | |
132 | #define dPOPPOPnnrl double right = POPn; double left = POPn | |
133 | #define dPOPPOPiirl I32 right = POPi; I32 left = POPi | |
134 | ||
135 | #define dPOPTOPssrl SV *rstr = POPs; SV *lstr = TOPs | |
136 | #define dPOPTOPnnrl double right = POPn; double left = TOPn | |
137 | #define dPOPTOPiirl I32 right = POPi; I32 left = TOPi | |
138 | ||
139 | #define RETPUSHYES RETURNX(PUSHs(&sv_yes)) | |
140 | #define RETPUSHNO RETURNX(PUSHs(&sv_no)) | |
141 | #define RETPUSHUNDEF RETURNX(PUSHs(&sv_undef)) | |
142 | ||
143 | #define RETSETYES RETURNX(SETs(&sv_yes)) | |
144 | #define RETSETNO RETURNX(SETs(&sv_no)) | |
145 | #define RETSETUNDEF RETURNX(SETs(&sv_undef)) | |
146 | ||
147 | #define ARGTARG op->op_targ | |
148 | #define MAXARG op->op_private | |
149 | ||
150 | #define SWITCHSTACK(f,t) AvFILL(f) = sp - stack_base; \ | |
151 | stack_base = AvARRAY(t); \ | |
152 | stack_max = stack_base + AvMAX(t); \ | |
153 | sp = stack_base + AvFILL(t); \ | |
154 | stack = t; | |
155 | ||
156 | /* XXX need to diffentiate on marked operators? */ | |
157 | #define FETCH_GV(s) PUTBACK, s = fetch_gv(op,1), SPAGAIN | |
158 | #define FETCH_GV1(s) PUTBACK, s = fetch_gv(op,1), SPAGAIN | |
159 | #define FETCH_GV2(s) PUTBACK, s = fetch_gv(op,2), SPAGAIN | |
160 | #define FETCH_IO(s) PUTBACK, s = fetch_io(op,1), SPAGAIN | |
161 | #define FETCH_IO1(s) PUTBACK, s = fetch_io(op,1), SPAGAIN | |
162 | #define FETCH_IO2(s) PUTBACK, s = fetch_io(op,2), SPAGAIN | |
163 | ||
164 | #define ENTER push_scope() | |
165 | #define LEAVE pop_scope() | |
166 | ||
167 | #define SAVEINT(i) save_int((int*)(&i)); | |
168 | #define SAVEI32(i) save_int((I32*)(&i)); | |
169 | #define SAVELONG(l) save_int((long*)(&l)); | |
170 | #define SAVESPTR(s) save_sptr((SV**)(&s)) | |
171 | #define SAVETMPS save_int(&tmps_floor), tmps_floor = tmps_ix |