[perl5.git] / bytecode.pl

use strict;
my %alias_to = (
    U32 => [qw(PADOFFSET STRLEN)],
    I32 => [qw(SSize_t long)],
    U16 => [qw(OPCODE line_t short)],
    U8 => [qw(char)],
);

my @optype= qw(OP UNOP BINOP LOGOP CONDOP LISTOP PMOP SVOP GVOP PVOP LOOP COP);

# Nullsv *must* come first in the following so that the condition
# ($$sv == 0) can continue to be used to test (sv == Nullsv).
my @specialsv = qw(Nullsv &sv_undef &sv_yes &sv_no);

my (%alias_from, $from, $tos);
while (($from, $tos) = each %alias_to) {
    map { $alias_from{$_} = $from } @$tos;
}

my $c_header = <<'EOT';
/*
 *      Copyright (c) 1996-1998 Malcolm Beattie
 *
 *      You may distribute under the terms of either the GNU General Public
 *      License or the Artistic License, as specified in the README file.
 *
 */
/*
 * This file is autogenerated from bytecode.pl. Changes made here will be lost.
 */
EOT

my $perl_header;
($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g;

unlink "byterun.c", "byterun.h", "ext/B/B/Asmdata.pm";

#
# Start with boilerplate for Asmdata.pm
#
open(ASMDATA_PM, ">ext/B/B/Asmdata.pm") or die "ext/B/B/Asmdata.pm: $!";
print ASMDATA_PM $perl_header, <<'EOT';
package B::Asmdata;
use Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name);
use vars qw(%insn_data @insn_name @optype @specialsv_name);

EOT
print ASMDATA_PM <<"EOT";
\@optype = qw(@optype);
\@specialsv_name = qw(@specialsv);

# XXX insn_data is initialised this way because with a large
# %insn_data = (foo => [...], bar => [...], ...) initialiser
# I get a hard-to-track-down stack underflow and segfault.
EOT

#
# Boilerplate for byterun.c
#
open(BYTERUN_C, ">byterun.c") or die "byterun.c: $!";
print BYTERUN_C $c_header, <<'EOT';

#include "EXTERN.h"
#include "perl.h"

void *
bset_obj_store(void *obj, I32 ix)
{
    if (ix > obj_list_fill) {
	if (obj_list_fill == -1)
	    New(666, obj_list, ix + 1, void*);
	else
	    Renew(obj_list, ix + 1, void*);
	obj_list_fill = ix;
    }
    obj_list[ix] = obj;
    return obj;
}

#ifdef INDIRECT_BGET_MACROS
void byterun(struct bytestream bs)
#else
void byterun(PerlIO *fp)
#endif /* INDIRECT_BGET_MACROS */
{
    dTHR;
    int insn;
    while ((insn = BGET_FGETC()) != EOF) {
	switch (insn) {
EOT


my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);

while (<DATA>) {
    chop;
    s/#.*//;			# remove comments
    next unless length;
    if (/^%number\s+(.*)/) {
	$insn_num = $1;
	next;
    } elsif (/%enum\s+(.*?)\s+(.*)/) {
	create_enum($1, $2);	# must come before instructions
	next;
    }
    ($insn, $lvalue, $argtype, $flags) = split;
    $insn_name[$insn_num] = $insn;
    $fundtype = $alias_from{$argtype} || $argtype;

    #
    # Add the case statement and code for the bytecode interpreter in byterun.c
    #
    printf BYTERUN_C "\t  case INSN_%s:\t\t/* %d */\n\t    {\n",
	uc($insn), $insn_num;
    my $optarg = $argtype eq "none" ? "" : ", arg";
    if ($optarg) {
	printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype;
    }
    if ($flags =~ /x/) {
	print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
    } elsif ($flags =~ /s/) {
	# Store instructions store to obj_list[arg]. "lvalue" field is rvalue.
	print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
    }
    elsif ($optarg && $lvalue ne "none") {
	print BYTERUN_C "\t\t$lvalue = arg;\n";
    }
    print BYTERUN_C "\t\tbreak;\n\t    }\n";

    #
    # Add the initialiser line for %insn_data in Asmdata.pm
    #
    print ASMDATA_PM <<"EOT";
\$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"];
EOT

    # Find the next unused instruction number
    do { $insn_num++ } while $insn_name[$insn_num];
}

#
# Finish off byterun.c
#
print BYTERUN_C <<'EOT';
	  default:
	    croak("Illegal bytecode instruction %d\n", insn);
	    /* NOTREACHED */
	}
    }
}
EOT

#
# Write the instruction and optype enum constants into byterun.h
#
open(BYTERUN_H, ">byterun.h") or die "byterun.h: $!";
print BYTERUN_H $c_header, <<'EOT';
#ifdef INDIRECT_BGET_MACROS
struct bytestream {
    void *data;
    int (*fgetc)(void *);
    int (*fread)(char *, size_t, size_t, void*);
    void (*freadpv)(U32, void*);
};
#endif /* INDIRECT_BGET_MACROS */

void *bset_obj_store _((void *, I32));

enum {
EOT

my $i = 0;
my $add_enum_value = 0;
my $max_insn;
for ($i = 0; $i < @insn_name; $i++) {
    $insn = uc($insn_name[$i]);
    if (defined($insn)) {
	$max_insn = $i;
	if ($add_enum_value) {
	    print BYTERUN_H "    INSN_$insn = $i,\t\t\t/* $i */\n";
	    $add_enum_value = 0;
	} else {
	    print BYTERUN_H "    INSN_$insn,\t\t\t/* $i */\n";
	}
    } else {
	$add_enum_value = 1;
    }
}

print BYTERUN_H "    MAX_INSN = $max_insn\n};\n";

print BYTERUN_H "\nenum {\n";
for ($i = 0; $i < @optype - 1; $i++) {
    printf BYTERUN_H "    OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
}
printf BYTERUN_H "    OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
print BYTERUN_H <<'EOT';
EXT int optype_size[]
#ifdef DOINIT
= {
EOT
for ($i = 0; $i < @optype - 1; $i++) {
    printf BYTERUN_H "    sizeof(%s),\n", $optype[$i], $i;
}
printf BYTERUN_H "    sizeof(%s)\n}\n", $optype[$i], $i;
print BYTERUN_H <<'EOT';
#endif /* DOINIT */
;

EOT

print BYTERUN_H <<'EOT';
#define INIT_SPECIALSV_LIST STMT_START { \
EOT
for ($i = 0; $i < @specialsv; $i++) {
    print BYTERUN_H "\tspecialsv_list[$i] = $specialsv[$i]; \\\n";
}
print BYTERUN_H <<'EOT';
    } STMT_END
EOT

#
# Finish off insn_data and create array initialisers in Asmdata.pm
#
print ASMDATA_PM <<'EOT';

my ($insn_name, $insn_data);
while (($insn_name, $insn_data) = each %insn_data) {
    $insn_name[$insn_data->[0]] = $insn_name;
}
# Fill in any gaps
@insn_name = map($_ || "unused", @insn_name);

1;
EOT

__END__
# First set instruction ord("#") to read comment to end-of-line (sneaky)
%number 35
comment		arg			comment_t
# Then make ord("\n") into a no-op
%number 10
nop		none			none
# Now for the rest of the ordinary ones, beginning with \0 which is
# ret so that \0-terminated strings can be read properly as bytecode.
%number 0
#
#opcode		lvalue			argtype		flags	
#
ret		none			none		x
ldsv		sv			svindex
ldop		op			opindex
stsv		sv			U32		s
stop		op			U32		s
ldspecsv	sv			U8		x
newsv		sv			U8		x
newop		op			U8		x
newopn		op			U8		x
newpv		none			PV
pv_cur		pv.xpv_cur		STRLEN
pv_free		pv			none		x
sv_upgrade	sv			char		x
sv_refcnt	SvREFCNT(sv)		U32
sv_refcnt_add	SvREFCNT(sv)		I32		x
sv_flags	SvFLAGS(sv)		U32
xrv		SvRV(sv)		svindex
xpv		sv			none		x
xiv32		SvIVX(sv)		I32
xiv64		SvIVX(sv)		IV64
xnv		SvNVX(sv)		double
xlv_targoff	LvTARGOFF(sv)		STRLEN
xlv_targlen	LvTARGLEN(sv)		STRLEN
xlv_targ	LvTARG(sv)		svindex
xlv_type	LvTYPE(sv)		char
xbm_useful	BmUSEFUL(sv)		I32
xbm_previous	BmPREVIOUS(sv)		U16
xbm_rare	BmRARE(sv)		U8
xfm_lines	FmLINES(sv)		I32
xio_lines	IoLINES(sv)		long
xio_page	IoPAGE(sv)		long
xio_page_len	IoPAGE_LEN(sv)		long
xio_lines_left	IoLINES_LEFT(sv)	long
xio_top_name	IoTOP_NAME(sv)		pvcontents
xio_top_gv	*(SV**)&IoTOP_GV(sv)	svindex
xio_fmt_name	IoFMT_NAME(sv)		pvcontents
xio_fmt_gv	*(SV**)&IoFMT_GV(sv)	svindex
xio_bottom_name	IoBOTTOM_NAME(sv)	pvcontents
xio_bottom_gv	*(SV**)&IoBOTTOM_GV(sv)	svindex
xio_subprocess	IoSUBPROCESS(sv)	short
xio_type	IoTYPE(sv)		char
xio_flags	IoFLAGS(sv)		char
xcv_stash	*(SV**)&CvSTASH(sv)	svindex
xcv_start	CvSTART(sv)		opindex
xcv_root	CvROOT(sv)		opindex
xcv_gv		*(SV**)&CvGV(sv)	svindex
xcv_filegv	*(SV**)&CvFILEGV(sv)	svindex
xcv_depth	CvDEPTH(sv)		long
xcv_padlist	*(SV**)&CvPADLIST(sv)	svindex
xcv_outside	*(SV**)&CvOUTSIDE(sv)	svindex
xcv_flags	CvFLAGS(sv)		U8
av_extend	sv			SSize_t		x
av_push		sv			svindex		x
xav_fill	AvFILLp(sv)		SSize_t
xav_max		AvMAX(sv)		SSize_t
xav_flags	AvFLAGS(sv)		U8
xhv_riter	HvRITER(sv)		I32
xhv_name	HvNAME(sv)		pvcontents
hv_store	sv			svindex		x
sv_magic	sv			char		x
mg_obj		SvMAGIC(sv)->mg_obj	svindex
mg_private	SvMAGIC(sv)->mg_private	U16
mg_flags	SvMAGIC(sv)->mg_flags	U8
mg_pv		SvMAGIC(sv)		pvcontents	x
xmg_stash	*(SV**)&SvSTASH(sv)	svindex
gv_fetchpv	sv			strconst	x
gv_stashpv	sv			strconst	x
gp_sv		GvSV(sv)		svindex
gp_refcnt	GvREFCNT(sv)		U32
gp_refcnt_add	GvREFCNT(sv)		I32		x
gp_av		*(SV**)&GvAV(sv)	svindex
gp_hv		*(SV**)&GvHV(sv)	svindex
gp_cv		*(SV**)&GvCV(sv)	svindex
gp_filegv	*(SV**)&GvFILEGV(sv)	svindex
gp_io		*(SV**)&GvIOp(sv)	svindex
gp_form		*(SV**)&GvFORM(sv)	svindex
gp_cvgen	GvCVGEN(sv)		U32
gp_line		GvLINE(sv)		line_t
gp_share	sv			svindex		x
xgv_flags	GvFLAGS(sv)		U8
op_next		op->op_next		opindex
op_sibling	op->op_sibling		opindex
op_ppaddr	op->op_ppaddr		strconst	x
op_targ		op->op_targ		PADOFFSET
op_type		op			OPCODE		x
op_seq		op->op_seq		U16
op_flags	op->op_flags		U8
op_private	op->op_private		U8
op_first	cUNOP->op_first		opindex
op_last		cBINOP->op_last		opindex
op_other	cLOGOP->op_other	opindex
op_true		cCONDOP->op_true	opindex
op_false	cCONDOP->op_false	opindex
op_children	cLISTOP->op_children	U32
op_pmreplroot	cPMOP->op_pmreplroot	opindex
op_pmreplrootgv	*(SV**)&cPMOP->op_pmreplroot	svindex
op_pmreplstart	cPMOP->op_pmreplstart	opindex
op_pmnext	*(OP**)&cPMOP->op_pmnext	opindex
pregcomp	op			pvcontents	x
op_pmflags	cPMOP->op_pmflags	U16
op_pmpermflags	cPMOP->op_pmpermflags	U16
op_sv		cSVOP->op_sv		svindex
op_gv		*(SV**)&cGVOP->op_gv	svindex
op_pv		cPVOP->op_pv		pvcontents
op_pv_tr	cPVOP->op_pv		op_tr_array
op_redoop	cLOOP->op_redoop	opindex
op_nextop	cLOOP->op_nextop	opindex
op_lastop	cLOOP->op_lastop	opindex
cop_label	cCOP->cop_label		pvcontents
cop_stash	*(SV**)&cCOP->cop_stash		svindex
cop_filegv	*(SV**)&cCOP->cop_filegv	svindex
cop_seq		cCOP->cop_seq		U32
cop_arybase	cCOP->cop_arybase	I32
cop_line	cCOP->cop_line		line_t
main_start	main_start		opindex
main_root	main_root		opindex
curpad		curpad			svindex		x
Commit	Line	Data
a8a597b2 MB	1	use strict;
	2	my %alias_to = (
	3	U32 => [qw(PADOFFSET STRLEN)],
	4	I32 => [qw(SSize_t long)],
	5	U16 => [qw(OPCODE line_t short)],
	6	U8 => [qw(char)],
a8a597b2 MB	7	);
	8
	9	my @optype= qw(OP UNOP BINOP LOGOP CONDOP LISTOP PMOP SVOP GVOP PVOP LOOP COP);
	10
	11	# Nullsv must come first in the following so that the condition
	12	# ($$sv == 0) can continue to be used to test (sv == Nullsv).
	13	my @specialsv = qw(Nullsv &sv_undef &sv_yes &sv_no);
	14
	15	my (%alias_from, $from, $tos);
	16	while (($from, $tos) = each %alias_to) {
	17	map { $alias_from{$_} = $from } @$tos;
	18	}
	19
	20	my $c_header = <<'EOT';
	21	/*
a8581515	22	* Copyright (c) 1996-1998 Malcolm Beattie
a8a597b2 MB	23	*
	24	* You may distribute under the terms of either the GNU General Public
	25	* License or the Artistic License, as specified in the README file.
	26	*
	27	*/
	28	/*
	29	* This file is autogenerated from bytecode.pl. Changes made here will be lost.
	30	*/
	31	EOT
	32
	33	my $perl_header;
	34	($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g;
	35
33b839e2	36	unlink "byterun.c", "byterun.h", "ext/B/B/Asmdata.pm";
a8a597b2 MB	37
	38	#
	39	# Start with boilerplate for Asmdata.pm
	40	#
33b839e2	41	open(ASMDATA_PM, ">ext/B/B/Asmdata.pm") or die "ext/B/B/Asmdata.pm: $!";
a8a597b2 MB	42	print ASMDATA_PM $perl_header, <<'EOT';
	43	package B::Asmdata;
	44	use Exporter;
	45	@ISA = qw(Exporter);
	46	@EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name);
	47	use vars qw(%insn_data @insn_name @optype @specialsv_name);
	48
	49	EOT
	50	print ASMDATA_PM <<"EOT";
	51	\@optype = qw(@optype);
	52	\@specialsv_name = qw(@specialsv);
	53
	54	# XXX insn_data is initialised this way because with a large
	55	# %insn_data = (foo => [...], bar => [...], ...) initialiser
	56	# I get a hard-to-track-down stack underflow and segfault.
	57	EOT
	58
	59	#
	60	# Boilerplate for byterun.c
	61	#
	62	open(BYTERUN_C, ">byterun.c") or die "byterun.c: $!";
	63	print BYTERUN_C $c_header, <<'EOT';
	64
	65	#include "EXTERN.h"
	66	#include "perl.h"
d613ef02 GS	67
	68	void *
	69	bset_obj_store(void *obj, I32 ix)
	70	{
	71	if (ix > obj_list_fill) {
	72	if (obj_list_fill == -1)
	73	New(666, obj_list, ix + 1, void*);
	74	else
	75	Renew(obj_list, ix + 1, void*);
	76	obj_list_fill = ix;
	77	}
	78	obj_list[ix] = obj;
	79	return obj;
	80	}
a8a597b2 MB	81
a8a597b2 MB	82	#ifdef INDIRECT_BGET_MACROS
33b839e2	83	void byterun(struct bytestream bs)
a8a597b2	84	#else
4b534093	85	void byterun(PerlIO *fp)
a8a597b2 MB	86	#endif /* INDIRECT_BGET_MACROS */
	87	{
	88	dTHR;
	89	int insn;
47358472	90	while ((insn = BGET_FGETC()) != EOF) {
a8a597b2 MB	91	switch (insn) {
	92	EOT
	93
	94
	95	my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);
	96
	97	while (<DATA>) {
	98	chop;
	99	s/#.*//; # remove comments
	100	next unless length;
	101	if (/^%number\s+(.*)/) {
	102	$insn_num = $1;
	103	next;
	104	} elsif (/%enum\s+(.?)\s+(.)/) {
	105	create_enum($1, $2); # must come before instructions
	106	next;
	107	}
	108	($insn, $lvalue, $argtype, $flags) = split;
	109	$insn_name[$insn_num] = $insn;
	110	$fundtype = $alias_from{$argtype} \|\| $argtype;
	111
	112	#
	113	# Add the case statement and code for the bytecode interpreter in byterun.c
	114	#
	115	printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n",
	116	uc($insn), $insn_num;
	117	my $optarg = $argtype eq "none" ? "" : ", arg";
	118	if ($optarg) {
	119	printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype;
	120	}
	121	if ($flags =~ /x/) {
	122	print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
	123	} elsif ($flags =~ /s/) {
	124	# Store instructions store to obj_list[arg]. "lvalue" field is rvalue.
	125	print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
	126	}
	127	elsif ($optarg && $lvalue ne "none") {
	128	print BYTERUN_C "\t\t$lvalue = arg;\n";
	129	}
	130	print BYTERUN_C "\t\tbreak;\n\t }\n";
	131
	132	#
	133	# Add the initialiser line for %insn_data in Asmdata.pm
	134	#
	135	print ASMDATA_PM <<"EOT";
	136	\$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"];
	137	EOT
	138
	139	# Find the next unused instruction number
	140	do { $insn_num++ } while $insn_name[$insn_num];
	141	}
	142
	143	#
	144	# Finish off byterun.c
	145	#
	146	print BYTERUN_C <<'EOT';
	147	default:
	148	croak("Illegal bytecode instruction %d\n", insn);
	149	/* NOTREACHED */
	150	}
	151	}
	152	}
	153	EOT
	154
155	#
156	# Write the instruction and optype enum constants into byterun.h
157	#
158	open(BYTERUN_H, ">byterun.h") or die "byterun.h: $!";
159	print BYTERUN_H $c_header, <<'EOT';
160	#ifdef INDIRECT_BGET_MACROS
161	struct bytestream {
162	void *data;
163	int (fgetc)(void );
164	int (fread)(char , size_t, size_t, void*);
165	void (freadpv)(U32, void);
166	};
a8a597b2 MB	167	#endif /* INDIRECT_BGET_MACROS */
a8a597b2 MB	168
d613ef02	169	void bset_obj_store _((void , I32));
a8a597b2 MB	170
	171	enum {
	172	EOT
	173
	174	my $i = 0;
	175	my $add_enum_value = 0;
	176	my $max_insn;
	177	for ($i = 0; $i < @insn_name; $i++) {
	178	$insn = uc($insn_name[$i]);
	179	if (defined($insn)) {
	180	$max_insn = $i;
	181	if ($add_enum_value) {
	182	print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n";
	183	$add_enum_value = 0;
	184	} else {
	185	print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n";
	186	}
	187	} else {
	188	$add_enum_value = 1;
	189	}
	190	}
	191
	192	print BYTERUN_H " MAX_INSN = $max_insn\n};\n";
	193
	194	print BYTERUN_H "\nenum {\n";
	195	for ($i = 0; $i < @optype - 1; $i++) {
	196	printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
	197	}
	198	printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
	199	print BYTERUN_H <<'EOT';
	200	EXT int optype_size[]
	201	#ifdef DOINIT
	202	= {
	203	EOT
	204	for ($i = 0; $i < @optype - 1; $i++) {
	205	printf BYTERUN_H " sizeof(%s),\n", $optype[$i], $i;
	206	}
	207	printf BYTERUN_H " sizeof(%s)\n}\n", $optype[$i], $i;
	208	print BYTERUN_H <<'EOT';
	209	#endif /* DOINIT */
	210	;
	211
	212	EOT
	213
fe3a57c4	214	print BYTERUN_H <<'EOT';
a8a597b2 MB	215	#define INIT_SPECIALSV_LIST STMT_START { \
	216	EOT
	217	for ($i = 0; $i < @specialsv; $i++) {
33b839e2	218	print BYTERUN_H "\tspecialsv_list[$i] = $specialsv[$i]; \\\n";
a8a597b2 MB	219	}
a8a597b2 MB	220	print BYTERUN_H <<'EOT';
33b839e2	221	} STMT_END
a8a597b2 MB	222	EOT
	223
	224	#
	225	# Finish off insn_data and create array initialisers in Asmdata.pm
	226	#
	227	print ASMDATA_PM <<'EOT';
	228
	229	my ($insn_name, $insn_data);
	230	while (($insn_name, $insn_data) = each %insn_data) {
	231	$insn_name[$insn_data->[0]] = $insn_name;
	232	}
	233	# Fill in any gaps
	234	@insn_name = map($_ \|\| "unused", @insn_name);
	235
	236	1;
	237	EOT
	238
	239	__END__
	240	# First set instruction ord("#") to read comment to end-of-line (sneaky)
	241	%number 35
fe3a57c4	242	comment arg comment_t
a8a597b2 MB	243	# Then make ord("\n") into a no-op
	244	%number 10
	245	nop none none
	246	# Now for the rest of the ordinary ones, beginning with \0 which is
	247	# ret so that \0-terminated strings can be read properly as bytecode.
	248	%number 0
	249	#
	250	#opcode lvalue argtype flags
	251	#
	252	ret none none x
	253	ldsv sv svindex
	254	ldop op opindex
	255	stsv sv U32 s
	256	stop op U32 s
	257	ldspecsv sv U8 x
	258	newsv sv U8 x
	259	newop op U8 x
	260	newopn op U8 x
	261	newpv none PV
	262	pv_cur pv.xpv_cur STRLEN
	263	pv_free pv none x
	264	sv_upgrade sv char x
	265	sv_refcnt SvREFCNT(sv) U32
	266	sv_refcnt_add SvREFCNT(sv) I32 x
	267	sv_flags SvFLAGS(sv) U32
	268	xrv SvRV(sv) svindex
	269	xpv sv none x
	270	xiv32 SvIVX(sv) I32
	271	xiv64 SvIVX(sv) IV64
	272	xnv SvNVX(sv) double
	273	xlv_targoff LvTARGOFF(sv) STRLEN
	274	xlv_targlen LvTARGLEN(sv) STRLEN
	275	xlv_targ LvTARG(sv) svindex
	276	xlv_type LvTYPE(sv) char
	277	xbm_useful BmUSEFUL(sv) I32
	278	xbm_previous BmPREVIOUS(sv) U16
	279	xbm_rare BmRARE(sv) U8
	280	xfm_lines FmLINES(sv) I32
	281	xio_lines IoLINES(sv) long
	282	xio_page IoPAGE(sv) long
	283	xio_page_len IoPAGE_LEN(sv) long
	284	xio_lines_left IoLINES_LEFT(sv) long
	285	xio_top_name IoTOP_NAME(sv) pvcontents
	286	xio_top_gv (SV*)&IoTOP_GV(sv) svindex
	287	xio_fmt_name IoFMT_NAME(sv) pvcontents
	288	xio_fmt_gv (SV*)&IoFMT_GV(sv) svindex
	289	xio_bottom_name IoBOTTOM_NAME(sv) pvcontents
	290	xio_bottom_gv (SV*)&IoBOTTOM_GV(sv) svindex
	291	xio_subprocess IoSUBPROCESS(sv) short
	292	xio_type IoTYPE(sv) char
	293	xio_flags IoFLAGS(sv) char
	294	xcv_stash (SV*)&CvSTASH(sv) svindex
	295	xcv_start CvSTART(sv) opindex
	296	xcv_root CvROOT(sv) opindex
	297	xcv_gv (SV*)&CvGV(sv) svindex
	298	xcv_filegv (SV*)&CvFILEGV(sv) svindex
	299	xcv_depth CvDEPTH(sv) long
	300	xcv_padlist (SV*)&CvPADLIST(sv) svindex
	301	xcv_outside (SV*)&CvOUTSIDE(sv) svindex
	302	xcv_flags CvFLAGS(sv) U8
	303	av_extend sv SSize_t x
	304	av_push sv svindex x
	305	xav_fill AvFILLp(sv) SSize_t
	306	xav_max AvMAX(sv) SSize_t
307	xav_flags AvFLAGS(sv) U8
308	xhv_riter HvRITER(sv) I32
309	xhv_name HvNAME(sv) pvcontents
310	hv_store sv svindex x
311	sv_magic sv char x
312	mg_obj SvMAGIC(sv)->mg_obj svindex
313	mg_private SvMAGIC(sv)->mg_private U16
314	mg_flags SvMAGIC(sv)->mg_flags U8
315	mg_pv SvMAGIC(sv) pvcontents x
316	xmg_stash (SV*)&SvSTASH(sv) svindex
317	gv_fetchpv sv strconst x
318	gv_stashpv sv strconst x
319	gp_sv GvSV(sv) svindex
320	gp_refcnt GvREFCNT(sv) U32
321	gp_refcnt_add GvREFCNT(sv) I32 x
322	gp_av (SV*)&GvAV(sv) svindex
323	gp_hv (SV*)&GvHV(sv) svindex
324	gp_cv (SV*)&GvCV(sv) svindex
325	gp_filegv (SV*)&GvFILEGV(sv) svindex
326	gp_io (SV*)&GvIOp(sv) svindex
327	gp_form (SV*)&GvFORM(sv) svindex
328	gp_cvgen GvCVGEN(sv) U32
329	gp_line GvLINE(sv) line_t
330	gp_share sv svindex x
331	xgv_flags GvFLAGS(sv) U8
332	op_next op->op_next opindex
333	op_sibling op->op_sibling opindex
334	op_ppaddr op->op_ppaddr strconst x
335	op_targ op->op_targ PADOFFSET
336	op_type op OPCODE x
337	op_seq op->op_seq U16
338	op_flags op->op_flags U8
339	op_private op->op_private U8
340	op_first cUNOP->op_first opindex
341	op_last cBINOP->op_last opindex
342	op_other cLOGOP->op_other opindex
343	op_true cCONDOP->op_true opindex
344	op_false cCONDOP->op_false opindex
345	op_children cLISTOP->op_children U32
346	op_pmreplroot cPMOP->op_pmreplroot opindex
347	op_pmreplrootgv (SV*)&cPMOP->op_pmreplroot svindex
348	op_pmreplstart cPMOP->op_pmreplstart opindex
349	op_pmnext (OP*)&cPMOP->op_pmnext opindex
350	pregcomp op pvcontents x
351	op_pmflags cPMOP->op_pmflags U16
352	op_pmpermflags cPMOP->op_pmpermflags U16
353	op_sv cSVOP->op_sv svindex
354	op_gv (SV*)&cGVOP->op_gv svindex
355	op_pv cPVOP->op_pv pvcontents
356	op_pv_tr cPVOP->op_pv op_tr_array
357	op_redoop cLOOP->op_redoop opindex
358	op_nextop cLOOP->op_nextop opindex
359	op_lastop cLOOP->op_lastop opindex
360	cop_label cCOP->cop_label pvcontents
361	cop_stash (SV*)&cCOP->cop_stash svindex
362	cop_filegv (SV*)&cCOP->cop_filegv svindex
363	cop_seq cCOP->cop_seq U32
364	cop_arybase cCOP->cop_arybase I32
365	cop_line cCOP->cop_line line_t
366	main_start main_start opindex
367	main_root main_root opindex
368	curpad curpad svindex x