[perl5.git] / bytecode.pl

BEGIN {
  push @INC, './lib';
}
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 LISTOP PMOP SVOP PADOP 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 &PL_sv_undef &PL_sv_yes &PL_sv_no);

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

my $c_header = <<'EOT';
/*
 *      Copyright (c) 1996-1999 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 "ext/ByteLoader/byterun.c", "ext/ByteLoader/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);
our(%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, ">ext/ByteLoader/byterun.c") or die "ext/ByteLoader/byterun.c: $!";
print BYTERUN_C $c_header, <<'EOT';

#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#define NO_XSLOCKS
#include "XSUB.h"

#ifdef PERL_OBJECT
#undef CALL_FPTR
#define CALL_FPTR(fptr) (pPerl->*fptr)
#undef PL_ppaddr
#define PL_ppaddr (*get_ppaddr())
#endif

#include "byterun.h"
#include "bytecode.h"


static int optype_size[] = {
EOT
my $i = 0;
for ($i = 0; $i < @optype - 1; $i++) {
    printf BYTERUN_C "    sizeof(%s),\n", $optype[$i], $i;
}
printf BYTERUN_C "    sizeof(%s)\n", $optype[$i], $i;
print BYTERUN_C <<'EOT';
};

static SV *specialsv_list[4];

static int bytecode_iv_overflows = 0;
static SV *bytecode_sv;
static XPV bytecode_pv;
static void **bytecode_obj_list;
static I32 bytecode_obj_list_fill = -1;

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

void
byterun(pTHXo_ struct bytestream bs)
{
    dTHR;
    int insn;

EOT

for (my $i = 0; $i < @specialsv; $i++) {
    print BYTERUN_C "    specialsv_list[$i] = $specialsv[$i];\n";
}

print BYTERUN_C <<'EOT';

    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 bytecode_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:
	    Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn);
	    /* NOTREACHED */
	}
    }
}
EOT

#
# Write the instruction and optype enum constants into byterun.h
#
open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!";
print BYTERUN_H $c_header, <<'EOT';
struct bytestream {
    void *data;
    int (*pfgetc)(void *);
    int (*pfread)(char *, size_t, size_t, void *);
    void (*pfreadpv)(U32, void *, XPV *);
};

enum {
EOT

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';
extern void byterun(pTHXo_ struct bytestream bs);

#define INIT_SPECIALSV_LIST STMT_START { \
EOT
for ($i = 0; $i < @specialsv; $i++) {
    print BYTERUN_H "\tPL_specialsv_list[$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;

__END__

=head1 NAME

B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode

=head1 SYNOPSIS

	use Asmdata;

=head1 DESCRIPTION

See F<ext/B/B/Asmdata.pm>.

=head1 AUTHOR

Malcolm Beattie, C<mbeattie@sable.ox.ac.uk>

=cut
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		bytecode_sv				svindex
ldop		PL_op					opindex
stsv		bytecode_sv				U32		s
stop		PL_op					U32		s
ldspecsv	bytecode_sv				U8		x
newsv		bytecode_sv				U8		x
newop		PL_op					U8		x
newopn		PL_op					U8		x
newpv		none					PV
pv_cur		bytecode_pv.xpv_cur			STRLEN
pv_free		bytecode_pv				none		x
sv_upgrade	bytecode_sv				char		x
sv_refcnt	SvREFCNT(bytecode_sv)			U32
sv_refcnt_add	SvREFCNT(bytecode_sv)			I32		x
sv_flags	SvFLAGS(bytecode_sv)			U32
xrv		SvRV(bytecode_sv)			svindex
xpv		bytecode_sv				none		x
xiv32		SvIVX(bytecode_sv)			I32
xiv64		SvIVX(bytecode_sv)			IV64
xnv		SvNVX(bytecode_sv)			NV
xlv_targoff	LvTARGOFF(bytecode_sv)			STRLEN
xlv_targlen	LvTARGLEN(bytecode_sv)			STRLEN
xlv_targ	LvTARG(bytecode_sv)			svindex
xlv_type	LvTYPE(bytecode_sv)			char
xbm_useful	BmUSEFUL(bytecode_sv)			I32
xbm_previous	BmPREVIOUS(bytecode_sv)			U16
xbm_rare	BmRARE(bytecode_sv)			U8
xfm_lines	FmLINES(bytecode_sv)			I32
xio_lines	IoLINES(bytecode_sv)			long
xio_page	IoPAGE(bytecode_sv)			long
xio_page_len	IoPAGE_LEN(bytecode_sv)			long
xio_lines_left	IoLINES_LEFT(bytecode_sv)	       	long
xio_top_name	IoTOP_NAME(bytecode_sv)			pvcontents
xio_top_gv	*(SV**)&IoTOP_GV(bytecode_sv)		svindex
xio_fmt_name	IoFMT_NAME(bytecode_sv)			pvcontents
xio_fmt_gv	*(SV**)&IoFMT_GV(bytecode_sv)		svindex
xio_bottom_name	IoBOTTOM_NAME(bytecode_sv)		pvcontents
xio_bottom_gv	*(SV**)&IoBOTTOM_GV(bytecode_sv)	svindex
xio_subprocess	IoSUBPROCESS(bytecode_sv)		short
xio_type	IoTYPE(bytecode_sv)			char
xio_flags	IoFLAGS(bytecode_sv)			char
xcv_stash	*(SV**)&CvSTASH(bytecode_sv)		svindex
xcv_start	CvSTART(bytecode_sv)			opindex
xcv_root	CvROOT(bytecode_sv)			opindex
xcv_gv		*(SV**)&CvGV(bytecode_sv)		svindex
xcv_file	CvFILE(bytecode_sv)			pvcontents
xcv_depth	CvDEPTH(bytecode_sv)			long
xcv_padlist	*(SV**)&CvPADLIST(bytecode_sv)		svindex
xcv_outside	*(SV**)&CvOUTSIDE(bytecode_sv)		svindex
xcv_flags	CvFLAGS(bytecode_sv)			U16
av_extend	bytecode_sv				SSize_t		x
av_push		bytecode_sv				svindex		x
xav_fill	AvFILLp(bytecode_sv)			SSize_t
xav_max		AvMAX(bytecode_sv)			SSize_t
xav_flags	AvFLAGS(bytecode_sv)			U8
xhv_riter	HvRITER(bytecode_sv)			I32
xhv_name	HvNAME(bytecode_sv)			pvcontents
hv_store	bytecode_sv				svindex		x
sv_magic	bytecode_sv				char		x
mg_obj		SvMAGIC(bytecode_sv)->mg_obj		svindex
mg_private	SvMAGIC(bytecode_sv)->mg_private	U16
mg_flags	SvMAGIC(bytecode_sv)->mg_flags		U8
mg_pv		SvMAGIC(bytecode_sv)			pvcontents	x
xmg_stash	*(SV**)&SvSTASH(bytecode_sv)		svindex
gv_fetchpv	bytecode_sv				strconst	x
gv_stashpv	bytecode_sv				strconst	x
gp_sv		GvSV(bytecode_sv)			svindex
gp_refcnt	GvREFCNT(bytecode_sv)			U32
gp_refcnt_add	GvREFCNT(bytecode_sv)			I32		x
gp_av		*(SV**)&GvAV(bytecode_sv)		svindex
gp_hv		*(SV**)&GvHV(bytecode_sv)		svindex
gp_cv		*(SV**)&GvCV(bytecode_sv)		svindex
gp_file		GvFILE(bytecode_sv)			pvcontents
gp_io		*(SV**)&GvIOp(bytecode_sv)		svindex
gp_form		*(SV**)&GvFORM(bytecode_sv)		svindex
gp_cvgen	GvCVGEN(bytecode_sv)			U32
gp_line		GvLINE(bytecode_sv)			line_t
gp_share	bytecode_sv				svindex		x
xgv_flags	GvFLAGS(bytecode_sv)			U8
op_next		PL_op->op_next				opindex
op_sibling	PL_op->op_sibling			opindex
op_ppaddr	PL_op->op_ppaddr			strconst	x
op_targ		PL_op->op_targ				PADOFFSET
op_type		PL_op					OPCODE		x
op_seq		PL_op->op_seq				U16
op_flags	PL_op->op_flags				U8
op_private	PL_op->op_private			U8
op_first	cUNOP->op_first				opindex
op_last		cBINOP->op_last				opindex
op_other	cLOGOP->op_other			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	PL_op					pvcontents	x
op_pmflags	cPMOP->op_pmflags			U16
op_pmpermflags	cPMOP->op_pmpermflags			U16
op_sv		cSVOP->op_sv				svindex
op_padix	cPADOP->op_padix			PADOFFSET
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_stashpv	cCOP					pvcontents	x
cop_file	cCOP					pvcontents	x
cop_seq		cCOP->cop_seq				U32
cop_arybase	cCOP->cop_arybase			I32
cop_line	cCOP					line_t		x
cop_warnings	cCOP->cop_warnings			svindex
main_start	PL_main_start				opindex
main_root	PL_main_root				opindex
curpad		PL_curpad				svindex		x
Commit	Line	Data
73f0cc2d GS	1	BEGIN {
	2	push @INC, './lib';
	3	}
a8a597b2 MB	4	use strict;
	5	my %alias_to = (
	6	U32 => [qw(PADOFFSET STRLEN)],
	7	I32 => [qw(SSize_t long)],
	8	U16 => [qw(OPCODE line_t short)],
	9	U8 => [qw(char)],
a8a597b2 MB	10	);
a8a597b2 MB	11
7934575e	12	my @optype= qw(OP UNOP BINOP LOGOP LISTOP PMOP SVOP PADOP PVOP LOOP COP);
a8a597b2 MB	13
	14	# Nullsv must come first in the following so that the condition
	15	# ($$sv == 0) can continue to be used to test (sv == Nullsv).
6b88bc9c	16	my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no);
a8a597b2 MB	17
	18	my (%alias_from, $from, $tos);
	19	while (($from, $tos) = each %alias_to) {
	20	map { $alias_from{$_} = $from } @$tos;
	21	}
	22
	23	my $c_header = <<'EOT';
	24	/*
4eb8286e	25	* Copyright (c) 1996-1999 Malcolm Beattie
a8a597b2 MB	26	*
	27	* You may distribute under the terms of either the GNU General Public
	28	* License or the Artistic License, as specified in the README file.
	29	*
	30	*/
	31	/*
	32	* This file is autogenerated from bytecode.pl. Changes made here will be lost.
	33	*/
	34	EOT
	35
	36	my $perl_header;
	37	($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g;
	38
e8edd1e6	39	unlink "ext/ByteLoader/byterun.c", "ext/ByteLoader/byterun.h", "ext/B/B/Asmdata.pm";
a8a597b2 MB	40
	41	#
	42	# Start with boilerplate for Asmdata.pm
	43	#
33b839e2	44	open(ASMDATA_PM, ">ext/B/B/Asmdata.pm") or die "ext/B/B/Asmdata.pm: $!";
a8a597b2 MB	45	print ASMDATA_PM $perl_header, <<'EOT';
	46	package B::Asmdata;
	47	use Exporter;
	48	@ISA = qw(Exporter);
	49	@EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name);
1b11e67e	50	our(%insn_data, @insn_name, @optype, @specialsv_name);
a8a597b2 MB	51
	52	EOT
	53	print ASMDATA_PM <<"EOT";
	54	\@optype = qw(@optype);
	55	\@specialsv_name = qw(@specialsv);
	56
	57	# XXX insn_data is initialised this way because with a large
	58	# %insn_data = (foo => [...], bar => [...], ...) initialiser
	59	# I get a hard-to-track-down stack underflow and segfault.
	60	EOT
	61
	62	#
	63	# Boilerplate for byterun.c
	64	#
e8edd1e6	65	open(BYTERUN_C, ">ext/ByteLoader/byterun.c") or die "ext/ByteLoader/byterun.c: $!";
a8a597b2 MB	66	print BYTERUN_C $c_header, <<'EOT';
a8a597b2 MB	67
c5be433b	68	#define PERL_NO_GET_CONTEXT
a8a597b2 MB	69	#include "EXTERN.h"
a8a597b2 MB	70	#include "perl.h"
0cb96387 GS	71	#define NO_XSLOCKS
	72	#include "XSUB.h"
	73
	74	#ifdef PERL_OBJECT
	75	#undef CALL_FPTR
	76	#define CALL_FPTR(fptr) (pPerl->*fptr)
	77	#undef PL_ppaddr
	78	#define PL_ppaddr (*get_ppaddr())
	79	#endif
	80
e8edd1e6 TH	81	#include "byterun.h"
	82	#include "bytecode.h"
	83
0cb96387	84
e8edd1e6 TH	85	static int optype_size[] = {
	86	EOT
	87	my $i = 0;
	88	for ($i = 0; $i < @optype - 1; $i++) {
	89	printf BYTERUN_C " sizeof(%s),\n", $optype[$i], $i;
	90	}
	91	printf BYTERUN_C " sizeof(%s)\n", $optype[$i], $i;
	92	print BYTERUN_C <<'EOT';
	93	};
	94
	95	static SV *specialsv_list[4];
	96
	97	static int bytecode_iv_overflows = 0;
	98	static SV *bytecode_sv;
	99	static XPV bytecode_pv;
	100	static void **bytecode_obj_list;
	101	static I32 bytecode_obj_list_fill = -1;
d613ef02 GS	102
d613ef02 GS	103	void *
0cb96387	104	bset_obj_store(pTHXo_ void *obj, I32 ix)
d613ef02	105	{
e8edd1e6 TH	106	if (ix > bytecode_obj_list_fill) {
	107	if (bytecode_obj_list_fill == -1)
	108	New(666, bytecode_obj_list, ix + 1, void*);
d613ef02	109	else
e8edd1e6 TH	110	Renew(bytecode_obj_list, ix + 1, void*);
e8edd1e6 TH	111	bytecode_obj_list_fill = ix;
d613ef02	112	}
e8edd1e6	113	bytecode_obj_list[ix] = obj;
d613ef02 GS	114	return obj;
d613ef02 GS	115	}
a8a597b2	116
cea2e8a9	117	void
0cb96387	118	byterun(pTHXo_ struct bytestream bs)
a8a597b2 MB	119	{
	120	dTHR;
	121	int insn;
e8edd1e6 TH	122
	123	EOT
	124
	125	for (my $i = 0; $i < @specialsv; $i++) {
	126	print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n";
	127	}
	128
	129	print BYTERUN_C <<'EOT';
	130
47358472	131	while ((insn = BGET_FGETC()) != EOF) {
a8a597b2 MB	132	switch (insn) {
	133	EOT
	134
	135
	136	my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);
	137
	138	while (<DATA>) {
	139	chop;
	140	s/#.*//; # remove comments
	141	next unless length;
	142	if (/^%number\s+(.*)/) {
	143	$insn_num = $1;
	144	next;
	145	} elsif (/%enum\s+(.?)\s+(.)/) {
	146	create_enum($1, $2); # must come before instructions
	147	next;
	148	}
	149	($insn, $lvalue, $argtype, $flags) = split;
	150	$insn_name[$insn_num] = $insn;
	151	$fundtype = $alias_from{$argtype} \|\| $argtype;
	152
	153	#
	154	# Add the case statement and code for the bytecode interpreter in byterun.c
	155	#
	156	printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n",
	157	uc($insn), $insn_num;
	158	my $optarg = $argtype eq "none" ? "" : ", arg";
	159	if ($optarg) {
	160	printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype;
	161	}
	162	if ($flags =~ /x/) {
	163	print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
	164	} elsif ($flags =~ /s/) {
e8edd1e6	165	# Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue.
a8a597b2 MB	166	print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
	167	}
	168	elsif ($optarg && $lvalue ne "none") {
	169	print BYTERUN_C "\t\t$lvalue = arg;\n";
	170	}
	171	print BYTERUN_C "\t\tbreak;\n\t }\n";
	172
	173	#
	174	# Add the initialiser line for %insn_data in Asmdata.pm
	175	#
	176	print ASMDATA_PM <<"EOT";
	177	\$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"];
	178	EOT
	179
	180	# Find the next unused instruction number
	181	do { $insn_num++ } while $insn_name[$insn_num];
	182	}
	183
	184	#
	185	# Finish off byterun.c
	186	#
	187	print BYTERUN_C <<'EOT';
	188	default:
cea2e8a9	189	Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn);
a8a597b2 MB	190	/* NOTREACHED */
	191	}
	192	}
	193	}
	194	EOT
	195
	196	#
	197	# Write the instruction and optype enum constants into byterun.h
	198	#
e8edd1e6	199	open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!";
a8a597b2	200	print BYTERUN_H $c_header, <<'EOT';
a8a597b2 MB	201	struct bytestream {
a8a597b2 MB	202	void *data;
4f63d024 GS	203	int (pfgetc)(void );
	204	int (pfread)(char , size_t, size_t, void *);
	205	void (pfreadpv)(U32, void , XPV *);
a8a597b2	206	};
a8a597b2	207
a8a597b2 MB	208	enum {
	209	EOT
	210
a8a597b2 MB	211	my $add_enum_value = 0;
	212	my $max_insn;
	213	for ($i = 0; $i < @insn_name; $i++) {
	214	$insn = uc($insn_name[$i]);
	215	if (defined($insn)) {
	216	$max_insn = $i;
	217	if ($add_enum_value) {
	218	print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n";
	219	$add_enum_value = 0;
	220	} else {
	221	print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n";
	222	}
	223	} else {
	224	$add_enum_value = 1;
	225	}
	226	}
	227
	228	print BYTERUN_H " MAX_INSN = $max_insn\n};\n";
	229
	230	print BYTERUN_H "\nenum {\n";
	231	for ($i = 0; $i < @optype - 1; $i++) {
	232	printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
	233	}
	234	printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
a8a597b2	235
fe3a57c4	236	print BYTERUN_H <<'EOT';
b78218b7	237	extern void byterun(pTHXo_ struct bytestream bs);
0cb96387	238
a8a597b2 MB	239	#define INIT_SPECIALSV_LIST STMT_START { \
	240	EOT
	241	for ($i = 0; $i < @specialsv; $i++) {
6b88bc9c	242	print BYTERUN_H "\tPL_specialsv_list[$i] = $specialsv[$i]; \\\n";
a8a597b2 MB	243	}
a8a597b2 MB	244	print BYTERUN_H <<'EOT';
33b839e2	245	} STMT_END
a8a597b2 MB	246	EOT
	247
	248	#
	249	# Finish off insn_data and create array initialisers in Asmdata.pm
	250	#
	251	print ASMDATA_PM <<'EOT';
	252
	253	my ($insn_name, $insn_data);
	254	while (($insn_name, $insn_data) = each %insn_data) {
	255	$insn_name[$insn_data->[0]] = $insn_name;
	256	}
	257	# Fill in any gaps
	258	@insn_name = map($_ \|\| "unused", @insn_name);
	259
	260	1;
42d3a99d GS	261
	262	__END__
	263
	264	=head1 NAME
	265
	266	B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode
	267
	268	=head1 SYNOPSIS
	269
	270	use Asmdata;
	271
	272	=head1 DESCRIPTION
	273
	274	See F<ext/B/B/Asmdata.pm>.
	275
	276	=head1 AUTHOR
	277
	278	Malcolm Beattie, C<mbeattie@sable.ox.ac.uk>
	279
	280	=cut
a8a597b2 MB	281	EOT
	282
	283	__END__
	284	# First set instruction ord("#") to read comment to end-of-line (sneaky)
	285	%number 35
fe3a57c4	286	comment arg comment_t
a8a597b2 MB	287	# Then make ord("\n") into a no-op
	288	%number 10
	289	nop none none
	290	# Now for the rest of the ordinary ones, beginning with \0 which is
	291	# ret so that \0-terminated strings can be read properly as bytecode.
	292	%number 0
	293	#
92742e37	294	#opcode lvalue argtype flags
a8a597b2	295	#
92742e37	296	ret none none x
e8edd1e6	297	ldsv bytecode_sv svindex
92742e37	298	ldop PL_op opindex
e8edd1e6	299	stsv bytecode_sv U32 s
92742e37	300	stop PL_op U32 s
e8edd1e6 TH	301	ldspecsv bytecode_sv U8 x
e8edd1e6 TH	302	newsv bytecode_sv U8 x
92742e37 GS	303	newop PL_op U8 x
	304	newopn PL_op U8 x
	305	newpv none PV
e8edd1e6 TH	306	pv_cur bytecode_pv.xpv_cur STRLEN
	307	pv_free bytecode_pv none x
	308	sv_upgrade bytecode_sv char x
	309	sv_refcnt SvREFCNT(bytecode_sv) U32
	310	sv_refcnt_add SvREFCNT(bytecode_sv) I32 x
	311	sv_flags SvFLAGS(bytecode_sv) U32
	312	xrv SvRV(bytecode_sv) svindex
	313	xpv bytecode_sv none x
	314	xiv32 SvIVX(bytecode_sv) I32
	315	xiv64 SvIVX(bytecode_sv) IV64
65202027	316	xnv SvNVX(bytecode_sv) NV
e8edd1e6 TH	317	xlv_targoff LvTARGOFF(bytecode_sv) STRLEN
	318	xlv_targlen LvTARGLEN(bytecode_sv) STRLEN
	319	xlv_targ LvTARG(bytecode_sv) svindex
	320	xlv_type LvTYPE(bytecode_sv) char
	321	xbm_useful BmUSEFUL(bytecode_sv) I32
	322	xbm_previous BmPREVIOUS(bytecode_sv) U16
	323	xbm_rare BmRARE(bytecode_sv) U8
	324	xfm_lines FmLINES(bytecode_sv) I32
	325	xio_lines IoLINES(bytecode_sv) long
	326	xio_page IoPAGE(bytecode_sv) long
	327	xio_page_len IoPAGE_LEN(bytecode_sv) long
	328	xio_lines_left IoLINES_LEFT(bytecode_sv) long
	329	xio_top_name IoTOP_NAME(bytecode_sv) pvcontents
	330	xio_top_gv (SV*)&IoTOP_GV(bytecode_sv) svindex
	331	xio_fmt_name IoFMT_NAME(bytecode_sv) pvcontents
	332	xio_fmt_gv (SV*)&IoFMT_GV(bytecode_sv) svindex
	333	xio_bottom_name IoBOTTOM_NAME(bytecode_sv) pvcontents
	334	xio_bottom_gv (SV*)&IoBOTTOM_GV(bytecode_sv) svindex
	335	xio_subprocess IoSUBPROCESS(bytecode_sv) short
	336	xio_type IoTYPE(bytecode_sv) char
	337	xio_flags IoFLAGS(bytecode_sv) char
	338	xcv_stash (SV*)&CvSTASH(bytecode_sv) svindex
	339	xcv_start CvSTART(bytecode_sv) opindex
	340	xcv_root CvROOT(bytecode_sv) opindex
	341	xcv_gv (SV*)&CvGV(bytecode_sv) svindex
57843af0	342	xcv_file CvFILE(bytecode_sv) pvcontents
e8edd1e6 TH	343	xcv_depth CvDEPTH(bytecode_sv) long
	344	xcv_padlist (SV*)&CvPADLIST(bytecode_sv) svindex
	345	xcv_outside (SV*)&CvOUTSIDE(bytecode_sv) svindex
fc290457	346	xcv_flags CvFLAGS(bytecode_sv) U16
e8edd1e6 TH	347	av_extend bytecode_sv SSize_t x
	348	av_push bytecode_sv svindex x
	349	xav_fill AvFILLp(bytecode_sv) SSize_t
	350	xav_max AvMAX(bytecode_sv) SSize_t
	351	xav_flags AvFLAGS(bytecode_sv) U8
	352	xhv_riter HvRITER(bytecode_sv) I32
	353	xhv_name HvNAME(bytecode_sv) pvcontents
	354	hv_store bytecode_sv svindex x
	355	sv_magic bytecode_sv char x
	356	mg_obj SvMAGIC(bytecode_sv)->mg_obj svindex
	357	mg_private SvMAGIC(bytecode_sv)->mg_private U16
	358	mg_flags SvMAGIC(bytecode_sv)->mg_flags U8
	359	mg_pv SvMAGIC(bytecode_sv) pvcontents x
	360	xmg_stash (SV*)&SvSTASH(bytecode_sv) svindex
	361	gv_fetchpv bytecode_sv strconst x
	362	gv_stashpv bytecode_sv strconst x
	363	gp_sv GvSV(bytecode_sv) svindex
	364	gp_refcnt GvREFCNT(bytecode_sv) U32
	365	gp_refcnt_add GvREFCNT(bytecode_sv) I32 x
	366	gp_av (SV*)&GvAV(bytecode_sv) svindex
	367	gp_hv (SV*)&GvHV(bytecode_sv) svindex
	368	gp_cv (SV*)&GvCV(bytecode_sv) svindex
b195d487	369	gp_file GvFILE(bytecode_sv) pvcontents
e8edd1e6 TH	370	gp_io (SV*)&GvIOp(bytecode_sv) svindex
	371	gp_form (SV*)&GvFORM(bytecode_sv) svindex
	372	gp_cvgen GvCVGEN(bytecode_sv) U32
	373	gp_line GvLINE(bytecode_sv) line_t
	374	gp_share bytecode_sv svindex x
	375	xgv_flags GvFLAGS(bytecode_sv) U8
92742e37 GS	376	op_next PL_op->op_next opindex
	377	op_sibling PL_op->op_sibling opindex
	378	op_ppaddr PL_op->op_ppaddr strconst x
	379	op_targ PL_op->op_targ PADOFFSET
	380	op_type PL_op OPCODE x
	381	op_seq PL_op->op_seq U16
	382	op_flags PL_op->op_flags U8
	383	op_private PL_op->op_private U8
	384	op_first cUNOP->op_first opindex
	385	op_last cBINOP->op_last opindex
	386	op_other cLOGOP->op_other opindex
92742e37 GS	387	op_children cLISTOP->op_children U32
	388	op_pmreplroot cPMOP->op_pmreplroot opindex
	389	op_pmreplrootgv (SV*)&cPMOP->op_pmreplroot svindex
	390	op_pmreplstart cPMOP->op_pmreplstart opindex
	391	op_pmnext (OP*)&cPMOP->op_pmnext opindex
	392	pregcomp PL_op pvcontents x
	393	op_pmflags cPMOP->op_pmflags U16
	394	op_pmpermflags cPMOP->op_pmpermflags U16
	395	op_sv cSVOP->op_sv svindex
7934575e	396	op_padix cPADOP->op_padix PADOFFSET
92742e37 GS	397	op_pv cPVOP->op_pv pvcontents
	398	op_pv_tr cPVOP->op_pv op_tr_array
	399	op_redoop cLOOP->op_redoop opindex
	400	op_nextop cLOOP->op_nextop opindex
	401	op_lastop cLOOP->op_lastop opindex
	402	cop_label cCOP->cop_label pvcontents
11faa288	403	cop_stashpv cCOP pvcontents x
57843af0	404	cop_file cCOP pvcontents x
92742e37 GS	405	cop_seq cCOP->cop_seq U32
92742e37 GS	406	cop_arybase cCOP->cop_arybase I32
57843af0	407	cop_line cCOP line_t x
b295d113	408	cop_warnings cCOP->cop_warnings svindex
92742e37 GS	409	main_start PL_main_start opindex
	410	main_root PL_main_root opindex
	411	curpad PL_curpad svindex x