3 U32 => [qw(PADOFFSET STRLEN)],
4 I32 => [qw(SSize_t long)],
5 U16 => [qw(OPCODE line_t short)],
7 objindex => [qw(svindex opindex)]
10 my @optype= qw(OP UNOP BINOP LOGOP CONDOP LISTOP PMOP SVOP GVOP PVOP LOOP COP);
12 # Nullsv *must* come first in the following so that the condition
13 # ($$sv == 0) can continue to be used to test (sv == Nullsv).
14 my @specialsv = qw(Nullsv &sv_undef &sv_yes &sv_no);
16 my (%alias_from, $from, $tos);
17 while (($from, $tos) = each %alias_to) {
18 map { $alias_from{$_} = $from } @$tos;
21 my $c_header = <<'EOT';
23 * Copyright (c) 1996, 1997 Malcolm Beattie
25 * You may distribute under the terms of either the GNU General Public
26 * License or the Artistic License, as specified in the README file.
30 * This file is autogenerated from bytecode.pl. Changes made here will be lost.
35 ($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g;
38 rename("byterun.c", "byterun.c.old");
41 rename("byterun.h", "byterun.h.old");
43 if (-f "B/Asmdata.pm") {
44 rename("B/Asmdata.pm", "B/Asmdata.pm.old");
48 # Start with boilerplate for Asmdata.pm
50 open(ASMDATA_PM, ">B/Asmdata.pm") or die "Asmdata.pm: $!";
51 print ASMDATA_PM $perl_header, <<'EOT';
55 @EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name);
56 use vars qw(%insn_data @insn_name @optype @specialsv_name);
59 print ASMDATA_PM <<"EOT";
60 \@optype = qw(@optype);
61 \@specialsv_name = qw(@specialsv);
63 # XXX insn_data is initialised this way because with a large
64 # %insn_data = (foo => [...], bar => [...], ...) initialiser
65 # I get a hard-to-track-down stack underflow and segfault.
69 # Boilerplate for byterun.c
71 open(BYTERUN_C, ">byterun.c") or die "byterun.c: $!";
72 print BYTERUN_C $c_header, <<'EOT';
79 #ifdef INDIRECT_BGET_MACROS
85 #endif /* INDIRECT_BGET_MACROS */
89 while ((insn = FGETC()) != EOF) {
94 my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);
98 s/#.*//; # remove comments
100 if (/^%number\s+(.*)/) {
103 } elsif (/%enum\s+(.*?)\s+(.*)/) {
104 create_enum($1, $2); # must come before instructions
107 ($insn, $lvalue, $argtype, $flags) = split;
108 $insn_name[$insn_num] = $insn;
109 $fundtype = $alias_from{$argtype} || $argtype;
112 # Add the case statement and code for the bytecode interpreter in byterun.c
114 printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n",
115 uc($insn), $insn_num;
116 my $optarg = $argtype eq "none" ? "" : ", arg";
118 printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype;
121 print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
122 } elsif ($flags =~ /s/) {
123 # Store instructions store to obj_list[arg]. "lvalue" field is rvalue.
124 print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
126 elsif ($optarg && $lvalue ne "none") {
127 print BYTERUN_C "\t\t$lvalue = arg;\n";
129 print BYTERUN_C "\t\tbreak;\n\t }\n";
132 # Add the initialiser line for %insn_data in Asmdata.pm
134 print ASMDATA_PM <<"EOT";
135 \$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"];
138 # Find the next unused instruction number
139 do { $insn_num++ } while $insn_name[$insn_num];
143 # Finish off byterun.c
145 print BYTERUN_C <<'EOT';
147 croak("Illegal bytecode instruction %d\n", insn);
155 # Write the instruction and optype enum constants into byterun.h
157 open(BYTERUN_H, ">byterun.h") or die "byterun.h: $!";
158 print BYTERUN_H $c_header, <<'EOT';
159 #ifdef INDIRECT_BGET_MACROS
162 int (*fgetc)(void *);
163 int (*fread)(char *, size_t, size_t, void*);
164 void (*freadpv)(U32, void*);
166 void freadpv _((U32, void *));
167 void byterun _((struct bytestream));
169 void byterun _((FILE *));
170 #endif /* INDIRECT_BGET_MACROS */
173 #include "patchlevel.h"
175 #if PATCHLEVEL < 4 || (PATCHLEVEL == 4 && SUBVERSION < 50)
176 #define dTHR extern int errno
183 my $add_enum_value = 0;
185 for ($i = 0; $i < @insn_name; $i++) {
186 $insn = uc($insn_name[$i]);
187 if (defined($insn)) {
189 if ($add_enum_value) {
190 print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n";
193 print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n";
200 print BYTERUN_H " MAX_INSN = $max_insn\n};\n";
202 print BYTERUN_H "\nenum {\n";
203 for ($i = 0; $i < @optype - 1; $i++) {
204 printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
206 printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
207 print BYTERUN_H <<'EOT';
208 EXT int optype_size[]
212 for ($i = 0; $i < @optype - 1; $i++) {
213 printf BYTERUN_H " sizeof(%s),\n", $optype[$i], $i;
215 printf BYTERUN_H " sizeof(%s)\n}\n", $optype[$i], $i;
216 print BYTERUN_H <<'EOT';
222 printf BYTERUN_H <<'EOT', scalar(@specialsv);
223 EXT SV * specialsv_list[%d];
224 #define INIT_SPECIALSV_LIST STMT_START { \
226 for ($i = 0; $i < @specialsv; $i++) {
227 print BYTERUN_H "specialsv_list[$i] = $specialsv[$i]; \\\n";
229 print BYTERUN_H <<'EOT';
234 # Finish off insn_data and create array initialisers in Asmdata.pm
236 print ASMDATA_PM <<'EOT';
238 my ($insn_name, $insn_data);
239 while (($insn_name, $insn_data) = each %insn_data) {
240 $insn_name[$insn_data->[0]] = $insn_name;
243 @insn_name = map($_ || "unused", @insn_name);
249 # First set instruction ord("#") to read comment to end-of-line (sneaky)
252 # Then make ord("\n") into a no-op
255 # Now for the rest of the ordinary ones, beginning with \0 which is
256 # ret so that \0-terminated strings can be read properly as bytecode.
259 #opcode lvalue argtype flags
271 pv_cur pv.xpv_cur STRLEN
274 sv_refcnt SvREFCNT(sv) U32
275 sv_refcnt_add SvREFCNT(sv) I32 x
276 sv_flags SvFLAGS(sv) U32
282 xlv_targoff LvTARGOFF(sv) STRLEN
283 xlv_targlen LvTARGLEN(sv) STRLEN
284 xlv_targ LvTARG(sv) svindex
285 xlv_type LvTYPE(sv) char
286 xbm_useful BmUSEFUL(sv) I32
287 xbm_previous BmPREVIOUS(sv) U16
288 xbm_rare BmRARE(sv) U8
289 xfm_lines FmLINES(sv) I32
290 xio_lines IoLINES(sv) long
291 xio_page IoPAGE(sv) long
292 xio_page_len IoPAGE_LEN(sv) long
293 xio_lines_left IoLINES_LEFT(sv) long
294 xio_top_name IoTOP_NAME(sv) pvcontents
295 xio_top_gv *(SV**)&IoTOP_GV(sv) svindex
296 xio_fmt_name IoFMT_NAME(sv) pvcontents
297 xio_fmt_gv *(SV**)&IoFMT_GV(sv) svindex
298 xio_bottom_name IoBOTTOM_NAME(sv) pvcontents
299 xio_bottom_gv *(SV**)&IoBOTTOM_GV(sv) svindex
300 xio_subprocess IoSUBPROCESS(sv) short
301 xio_type IoTYPE(sv) char
302 xio_flags IoFLAGS(sv) char
303 xcv_stash *(SV**)&CvSTASH(sv) svindex
304 xcv_start CvSTART(sv) opindex
305 xcv_root CvROOT(sv) opindex
306 xcv_gv *(SV**)&CvGV(sv) svindex
307 xcv_filegv *(SV**)&CvFILEGV(sv) svindex
308 xcv_depth CvDEPTH(sv) long
309 xcv_padlist *(SV**)&CvPADLIST(sv) svindex
310 xcv_outside *(SV**)&CvOUTSIDE(sv) svindex
311 xcv_flags CvFLAGS(sv) U8
312 av_extend sv SSize_t x
314 xav_fill AvFILLp(sv) SSize_t
315 xav_max AvMAX(sv) SSize_t
316 xav_flags AvFLAGS(sv) U8
317 xhv_riter HvRITER(sv) I32
318 xhv_name HvNAME(sv) pvcontents
319 hv_store sv svindex x
321 mg_obj SvMAGIC(sv)->mg_obj svindex
322 mg_private SvMAGIC(sv)->mg_private U16
323 mg_flags SvMAGIC(sv)->mg_flags U8
324 mg_pv SvMAGIC(sv) pvcontents x
325 xmg_stash *(SV**)&SvSTASH(sv) svindex
326 gv_fetchpv sv strconst x
327 gv_stashpv sv strconst x
328 gp_sv GvSV(sv) svindex
329 gp_refcnt GvREFCNT(sv) U32
330 gp_refcnt_add GvREFCNT(sv) I32 x
331 gp_av *(SV**)&GvAV(sv) svindex
332 gp_hv *(SV**)&GvHV(sv) svindex
333 gp_cv *(SV**)&GvCV(sv) svindex
334 gp_filegv *(SV**)&GvFILEGV(sv) svindex
335 gp_io *(SV**)&GvIOp(sv) svindex
336 gp_form *(SV**)&GvFORM(sv) svindex
337 gp_cvgen GvCVGEN(sv) U32
338 gp_line GvLINE(sv) line_t
339 gp_share sv svindex x
340 xgv_flags GvFLAGS(sv) U8
341 op_next op->op_next opindex
342 op_sibling op->op_sibling opindex
343 op_ppaddr op->op_ppaddr strconst x
344 op_targ op->op_targ PADOFFSET
346 op_seq op->op_seq U16
347 op_flags op->op_flags U8
348 op_private op->op_private U8
349 op_first cUNOP->op_first opindex
350 op_last cBINOP->op_last opindex
351 op_other cLOGOP->op_other opindex
352 op_true cCONDOP->op_true opindex
353 op_false cCONDOP->op_false opindex
354 op_children cLISTOP->op_children U32
355 op_pmreplroot cPMOP->op_pmreplroot opindex
356 op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex
357 op_pmreplstart cPMOP->op_pmreplstart opindex
358 op_pmnext *(OP**)&cPMOP->op_pmnext opindex
359 pregcomp op pvcontents x
360 op_pmflags cPMOP->op_pmflags U16
361 op_pmpermflags cPMOP->op_pmpermflags U16
362 op_sv cSVOP->op_sv svindex
363 op_gv *(SV**)&cGVOP->op_gv svindex
364 op_pv cPVOP->op_pv pvcontents
365 op_pv_tr cPVOP->op_pv op_tr_array
366 op_redoop cLOOP->op_redoop opindex
367 op_nextop cLOOP->op_nextop opindex
368 op_lastop cLOOP->op_lastop opindex
369 cop_label cCOP->cop_label pvcontents
370 cop_stash *(SV**)&cCOP->cop_stash svindex
371 cop_filegv *(SV**)&cCOP->cop_filegv svindex
372 cop_seq cCOP->cop_seq U32
373 cop_arybase cCOP->cop_arybase I32
374 cop_line cCOP->cop_line line_t
375 main_start main_start opindex
376 main_root main_root opindex
377 curpad curpad svindex x