[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 pWARN_ALL pWARN_NONE);

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 const 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';
};

void *
bset_obj_store(pTHXo_ struct byteloader_state *bstate, void *obj, I32 ix)
{
    if (ix > bstate->bs_obj_list_fill) {
	Renew(bstate->bs_obj_list, ix + 32, void*);
	bstate->bs_obj_list_fill = ix + 31;
    }
    bstate->bs_obj_list[ix] = obj;
    return obj;
}

void
byterun(pTHXo_ register struct byteloader_state *bstate)
{
    dTHR;
    register int insn;
    U32 ix;
    SV *specialsv_list[6];

    BYTECODE_HEADER_CHECK;	/* croak if incorrect platform */
    New(666, bstate->bs_obj_list, 32, void*); /* set op objlist */
    bstate->bs_obj_list_fill = 31;

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 byteloader_fdata {
    SV	*datasv;
    int next_out;
    int	idx;
};

struct byteloader_state {
    struct byteloader_fdata	*bs_fdata;
    SV				*bs_sv;
    void			**bs_obj_list;
    int				bs_obj_list_fill;
    XPV				bs_pv;
    int				bs_iv_overflows;
};

int bl_getc(struct byteloader_fdata *);
int bl_read(struct byteloader_fdata *, char *, size_t, size_t);
extern void byterun(pTHXo_ struct byteloader_state *);

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;

#
# 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		bstate->bs_sv				svindex
ldop		PL_op					opindex
stsv		bstate->bs_sv				U32		s
stop		PL_op					U32		s
stpv		bstate->bs_pv.xpv_pv			U32		x
ldspecsv	bstate->bs_sv				U8		x
newsv		bstate->bs_sv				U8		x
newop		PL_op					U8		x
newopn		PL_op					U8		x
newpv		none					PV
pv_cur		bstate->bs_pv.xpv_cur			STRLEN
pv_free		bstate->bs_pv				none		x
sv_upgrade	bstate->bs_sv				char		x
sv_refcnt	SvREFCNT(bstate->bs_sv)			U32
sv_refcnt_add	SvREFCNT(bstate->bs_sv)			I32		x
sv_flags	SvFLAGS(bstate->bs_sv)			U32
xrv		SvRV(bstate->bs_sv)			svindex
xpv		bstate->bs_sv				none		x
xiv32		SvIVX(bstate->bs_sv)			I32
xiv64		SvIVX(bstate->bs_sv)			IV64
xnv		SvNVX(bstate->bs_sv)			NV
xlv_targoff	LvTARGOFF(bstate->bs_sv)		STRLEN
xlv_targlen	LvTARGLEN(bstate->bs_sv)		STRLEN
xlv_targ	LvTARG(bstate->bs_sv)			svindex
xlv_type	LvTYPE(bstate->bs_sv)			char
xbm_useful	BmUSEFUL(bstate->bs_sv)			I32
xbm_previous	BmPREVIOUS(bstate->bs_sv)		U16
xbm_rare	BmRARE(bstate->bs_sv)			U8
xfm_lines	FmLINES(bstate->bs_sv)			I32
xio_lines	IoLINES(bstate->bs_sv)			long
xio_page	IoPAGE(bstate->bs_sv)			long
xio_page_len	IoPAGE_LEN(bstate->bs_sv)		long
xio_lines_left	IoLINES_LEFT(bstate->bs_sv)	       	long
xio_top_name	IoTOP_NAME(bstate->bs_sv)		pvcontents
xio_top_gv	*(SV**)&IoTOP_GV(bstate->bs_sv)		svindex
xio_fmt_name	IoFMT_NAME(bstate->bs_sv)		pvcontents
xio_fmt_gv	*(SV**)&IoFMT_GV(bstate->bs_sv)		svindex
xio_bottom_name	IoBOTTOM_NAME(bstate->bs_sv)		pvcontents
xio_bottom_gv	*(SV**)&IoBOTTOM_GV(bstate->bs_sv)	svindex
xio_subprocess	IoSUBPROCESS(bstate->bs_sv)		short
xio_type	IoTYPE(bstate->bs_sv)			char
xio_flags	IoFLAGS(bstate->bs_sv)			char
xcv_stash	*(SV**)&CvSTASH(bstate->bs_sv)		svindex
xcv_start	CvSTART(bstate->bs_sv)			opindex
xcv_root	CvROOT(bstate->bs_sv)			opindex
xcv_gv		*(SV**)&CvGV(bstate->bs_sv)		svindex
xcv_file	CvFILE(bstate->bs_sv)			pvindex
xcv_depth	CvDEPTH(bstate->bs_sv)			long
xcv_padlist	*(SV**)&CvPADLIST(bstate->bs_sv)	svindex
xcv_outside	*(SV**)&CvOUTSIDE(bstate->bs_sv)	svindex
xcv_flags	CvFLAGS(bstate->bs_sv)			U16
av_extend	bstate->bs_sv				SSize_t		x
av_push		bstate->bs_sv				svindex		x
xav_fill	AvFILLp(bstate->bs_sv)			SSize_t
xav_max		AvMAX(bstate->bs_sv)			SSize_t
xav_flags	AvFLAGS(bstate->bs_sv)			U8
xhv_riter	HvRITER(bstate->bs_sv)			I32
xhv_name	HvNAME(bstate->bs_sv)			pvcontents
hv_store	bstate->bs_sv				svindex		x
sv_magic	bstate->bs_sv				char		x
mg_obj		SvMAGIC(bstate->bs_sv)->mg_obj		svindex
mg_private	SvMAGIC(bstate->bs_sv)->mg_private	U16
mg_flags	SvMAGIC(bstate->bs_sv)->mg_flags	U8
mg_pv		SvMAGIC(bstate->bs_sv)			pvcontents	x
xmg_stash	*(SV**)&SvSTASH(bstate->bs_sv)		svindex
gv_fetchpv	bstate->bs_sv				strconst	x
gv_stashpv	bstate->bs_sv				strconst	x
gp_sv		GvSV(bstate->bs_sv)			svindex
gp_refcnt	GvREFCNT(bstate->bs_sv)			U32
gp_refcnt_add	GvREFCNT(bstate->bs_sv)			I32		x
gp_av		*(SV**)&GvAV(bstate->bs_sv)		svindex
gp_hv		*(SV**)&GvHV(bstate->bs_sv)		svindex
gp_cv		*(SV**)&GvCV(bstate->bs_sv)		svindex
gp_file		GvFILE(bstate->bs_sv)			pvindex
gp_io		*(SV**)&GvIOp(bstate->bs_sv)		svindex
gp_form		*(SV**)&GvFORM(bstate->bs_sv)		svindex
gp_cvgen	GvCVGEN(bstate->bs_sv)			U32
gp_line		GvLINE(bstate->bs_sv)			line_t
gp_share	bstate->bs_sv				svindex		x
xgv_flags	GvFLAGS(bstate->bs_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				pvindex
cop_stashpv	cCOP					pvindex		x
cop_file	cCOP					pvindex		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
push_begin	PL_beginav				svindex		x
push_init	PL_initav				svindex		x
push_end	PL_endav				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).
059a8bb7	16	my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no pWARN_ALL pWARN_NONE);
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
059a8bb7	85	static const int optype_size[] = {
e8edd1e6 TH	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
d613ef02	95	void *
059a8bb7	96	bset_obj_store(pTHXo_ struct byteloader_state bstate, void obj, I32 ix)
d613ef02	97	{
059a8bb7 JH	98	if (ix > bstate->bs_obj_list_fill) {
	99	Renew(bstate->bs_obj_list, ix + 32, void*);
	100	bstate->bs_obj_list_fill = ix + 31;
d613ef02	101	}
059a8bb7	102	bstate->bs_obj_list[ix] = obj;
d613ef02 GS	103	return obj;
d613ef02 GS	104	}
a8a597b2	105
cea2e8a9	106	void
059a8bb7	107	byterun(pTHXo_ register struct byteloader_state *bstate)
a8a597b2 MB	108	{
a8a597b2 MB	109	dTHR;
059a8bb7 JH	110	register int insn;
	111	U32 ix;
	112	SV *specialsv_list[6];
	113
	114	BYTECODE_HEADER_CHECK; /* croak if incorrect platform */
	115	New(666, bstate->bs_obj_list, 32, void); / set op objlist */
	116	bstate->bs_obj_list_fill = 31;
e8edd1e6 TH	117
	118	EOT
	119
	120	for (my $i = 0; $i < @specialsv; $i++) {
	121	print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n";
	122	}
	123
	124	print BYTERUN_C <<'EOT';
	125
47358472	126	while ((insn = BGET_FGETC()) != EOF) {
a8a597b2 MB	127	switch (insn) {
	128	EOT
	129
	130
	131	my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);
	132
	133	while (<DATA>) {
	134	chop;
	135	s/#.*//; # remove comments
	136	next unless length;
	137	if (/^%number\s+(.*)/) {
	138	$insn_num = $1;
	139	next;
	140	} elsif (/%enum\s+(.?)\s+(.)/) {
	141	create_enum($1, $2); # must come before instructions
	142	next;
	143	}
	144	($insn, $lvalue, $argtype, $flags) = split;
	145	$insn_name[$insn_num] = $insn;
	146	$fundtype = $alias_from{$argtype} \|\| $argtype;
	147
	148	#
	149	# Add the case statement and code for the bytecode interpreter in byterun.c
	150	#
	151	printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n",
	152	uc($insn), $insn_num;
	153	my $optarg = $argtype eq "none" ? "" : ", arg";
	154	if ($optarg) {
	155	printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype;
	156	}
	157	if ($flags =~ /x/) {
	158	print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
	159	} elsif ($flags =~ /s/) {
e8edd1e6	160	# Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue.
a8a597b2 MB	161	print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
	162	}
	163	elsif ($optarg && $lvalue ne "none") {
	164	print BYTERUN_C "\t\t$lvalue = arg;\n";
	165	}
	166	print BYTERUN_C "\t\tbreak;\n\t }\n";
	167
	168	#
	169	# Add the initialiser line for %insn_data in Asmdata.pm
	170	#
	171	print ASMDATA_PM <<"EOT";
	172	\$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"];
	173	EOT
	174
	175	# Find the next unused instruction number
	176	do { $insn_num++ } while $insn_name[$insn_num];
	177	}
	178
	179	#
	180	# Finish off byterun.c
	181	#
	182	print BYTERUN_C <<'EOT';
	183	default:
cea2e8a9	184	Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn);
a8a597b2 MB	185	/* NOTREACHED */
	186	}
	187	}
	188	}
	189	EOT
	190
	191	#
	192	# Write the instruction and optype enum constants into byterun.h
	193	#
e8edd1e6	194	open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!";
a8a597b2	195	print BYTERUN_H $c_header, <<'EOT';
059a8bb7 JH	196	struct byteloader_fdata {
	197	SV *datasv;
	198	int next_out;
	199	int idx;
a8a597b2	200	};
a8a597b2	201
059a8bb7 JH	202	struct byteloader_state {
	203	struct byteloader_fdata *bs_fdata;
	204	SV *bs_sv;
	205	void **bs_obj_list;
	206	int bs_obj_list_fill;
	207	XPV bs_pv;
	208	int bs_iv_overflows;
	209	};
	210
	211	int bl_getc(struct byteloader_fdata *);
	212	int bl_read(struct byteloader_fdata , char , size_t, size_t);
	213	extern void byterun(pTHXo_ struct byteloader_state *);
	214
a8a597b2 MB	215	enum {
	216	EOT
	217
a8a597b2 MB	218	my $add_enum_value = 0;
	219	my $max_insn;
	220	for ($i = 0; $i < @insn_name; $i++) {
	221	$insn = uc($insn_name[$i]);
	222	if (defined($insn)) {
	223	$max_insn = $i;
	224	if ($add_enum_value) {
	225	print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n";
	226	$add_enum_value = 0;
	227	} else {
	228	print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n";
	229	}
	230	} else {
	231	$add_enum_value = 1;
	232	}
	233	}
	234
	235	print BYTERUN_H " MAX_INSN = $max_insn\n};\n";
	236
	237	print BYTERUN_H "\nenum {\n";
	238	for ($i = 0; $i < @optype - 1; $i++) {
	239	printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
	240	}
	241	printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
a8a597b2	242
a8a597b2 MB	243	#
	244	# Finish off insn_data and create array initialisers in Asmdata.pm
	245	#
	246	print ASMDATA_PM <<'EOT';
	247
	248	my ($insn_name, $insn_data);
	249	while (($insn_name, $insn_data) = each %insn_data) {
	250	$insn_name[$insn_data->[0]] = $insn_name;
	251	}
	252	# Fill in any gaps
	253	@insn_name = map($_ \|\| "unused", @insn_name);
	254
	255	1;
42d3a99d GS	256
	257	__END__
	258
	259	=head1 NAME
	260
	261	B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode
	262
	263	=head1 SYNOPSIS
	264
	265	use Asmdata;
	266
	267	=head1 DESCRIPTION
	268
	269	See F<ext/B/B/Asmdata.pm>.
	270
	271	=head1 AUTHOR
	272
	273	Malcolm Beattie, C<mbeattie@sable.ox.ac.uk>
	274
	275	=cut
a8a597b2 MB	276	EOT
	277
	278	__END__
	279	# First set instruction ord("#") to read comment to end-of-line (sneaky)
	280	%number 35
fe3a57c4	281	comment arg comment_t
a8a597b2 MB	282	# Then make ord("\n") into a no-op
	283	%number 10
	284	nop none none
	285	# Now for the rest of the ordinary ones, beginning with \0 which is
	286	# ret so that \0-terminated strings can be read properly as bytecode.
	287	%number 0
	288	#
92742e37	289	#opcode lvalue argtype flags
a8a597b2	290	#
92742e37	291	ret none none x
059a8bb7	292	ldsv bstate->bs_sv svindex
92742e37	293	ldop PL_op opindex
059a8bb7	294	stsv bstate->bs_sv U32 s
92742e37	295	stop PL_op U32 s
059a8bb7 JH	296	stpv bstate->bs_pv.xpv_pv U32 x
	297	ldspecsv bstate->bs_sv U8 x
	298	newsv bstate->bs_sv U8 x
92742e37 GS	299	newop PL_op U8 x
	300	newopn PL_op U8 x
	301	newpv none PV
059a8bb7 JH	302	pv_cur bstate->bs_pv.xpv_cur STRLEN
	303	pv_free bstate->bs_pv none x
	304	sv_upgrade bstate->bs_sv char x
	305	sv_refcnt SvREFCNT(bstate->bs_sv) U32
	306	sv_refcnt_add SvREFCNT(bstate->bs_sv) I32 x
	307	sv_flags SvFLAGS(bstate->bs_sv) U32
	308	xrv SvRV(bstate->bs_sv) svindex
	309	xpv bstate->bs_sv none x
	310	xiv32 SvIVX(bstate->bs_sv) I32
	311	xiv64 SvIVX(bstate->bs_sv) IV64
	312	xnv SvNVX(bstate->bs_sv) NV
	313	xlv_targoff LvTARGOFF(bstate->bs_sv) STRLEN
	314	xlv_targlen LvTARGLEN(bstate->bs_sv) STRLEN
	315	xlv_targ LvTARG(bstate->bs_sv) svindex
	316	xlv_type LvTYPE(bstate->bs_sv) char
	317	xbm_useful BmUSEFUL(bstate->bs_sv) I32
	318	xbm_previous BmPREVIOUS(bstate->bs_sv) U16
	319	xbm_rare BmRARE(bstate->bs_sv) U8
	320	xfm_lines FmLINES(bstate->bs_sv) I32
	321	xio_lines IoLINES(bstate->bs_sv) long
	322	xio_page IoPAGE(bstate->bs_sv) long
	323	xio_page_len IoPAGE_LEN(bstate->bs_sv) long
	324	xio_lines_left IoLINES_LEFT(bstate->bs_sv) long
	325	xio_top_name IoTOP_NAME(bstate->bs_sv) pvcontents
	326	xio_top_gv (SV*)&IoTOP_GV(bstate->bs_sv) svindex
	327	xio_fmt_name IoFMT_NAME(bstate->bs_sv) pvcontents
	328	xio_fmt_gv (SV*)&IoFMT_GV(bstate->bs_sv) svindex
	329	xio_bottom_name IoBOTTOM_NAME(bstate->bs_sv) pvcontents
	330	xio_bottom_gv (SV*)&IoBOTTOM_GV(bstate->bs_sv) svindex
	331	xio_subprocess IoSUBPROCESS(bstate->bs_sv) short
	332	xio_type IoTYPE(bstate->bs_sv) char
	333	xio_flags IoFLAGS(bstate->bs_sv) char
	334	xcv_stash (SV*)&CvSTASH(bstate->bs_sv) svindex
	335	xcv_start CvSTART(bstate->bs_sv) opindex
	336	xcv_root CvROOT(bstate->bs_sv) opindex
	337	xcv_gv (SV*)&CvGV(bstate->bs_sv) svindex
	338	xcv_file CvFILE(bstate->bs_sv) pvindex
	339	xcv_depth CvDEPTH(bstate->bs_sv) long
	340	xcv_padlist (SV*)&CvPADLIST(bstate->bs_sv) svindex
	341	xcv_outside (SV*)&CvOUTSIDE(bstate->bs_sv) svindex
	342	xcv_flags CvFLAGS(bstate->bs_sv) U16
	343	av_extend bstate->bs_sv SSize_t x
	344	av_push bstate->bs_sv svindex x
	345	xav_fill AvFILLp(bstate->bs_sv) SSize_t
	346	xav_max AvMAX(bstate->bs_sv) SSize_t
	347	xav_flags AvFLAGS(bstate->bs_sv) U8
	348	xhv_riter HvRITER(bstate->bs_sv) I32
	349	xhv_name HvNAME(bstate->bs_sv) pvcontents
	350	hv_store bstate->bs_sv svindex x
	351	sv_magic bstate->bs_sv char x
	352	mg_obj SvMAGIC(bstate->bs_sv)->mg_obj svindex
	353	mg_private SvMAGIC(bstate->bs_sv)->mg_private U16
	354	mg_flags SvMAGIC(bstate->bs_sv)->mg_flags U8
	355	mg_pv SvMAGIC(bstate->bs_sv) pvcontents x
	356	xmg_stash (SV*)&SvSTASH(bstate->bs_sv) svindex
	357	gv_fetchpv bstate->bs_sv strconst x
	358	gv_stashpv bstate->bs_sv strconst x
	359	gp_sv GvSV(bstate->bs_sv) svindex
	360	gp_refcnt GvREFCNT(bstate->bs_sv) U32
	361	gp_refcnt_add GvREFCNT(bstate->bs_sv) I32 x
	362	gp_av (SV*)&GvAV(bstate->bs_sv) svindex
	363	gp_hv (SV*)&GvHV(bstate->bs_sv) svindex
	364	gp_cv (SV*)&GvCV(bstate->bs_sv) svindex
	365	gp_file GvFILE(bstate->bs_sv) pvindex
366	gp_io (SV*)&GvIOp(bstate->bs_sv) svindex
367	gp_form (SV*)&GvFORM(bstate->bs_sv) svindex
368	gp_cvgen GvCVGEN(bstate->bs_sv) U32
369	gp_line GvLINE(bstate->bs_sv) line_t
370	gp_share bstate->bs_sv svindex x
371	xgv_flags GvFLAGS(bstate->bs_sv) U8
92742e37 GS	372	op_next PL_op->op_next opindex
	373	op_sibling PL_op->op_sibling opindex
	374	op_ppaddr PL_op->op_ppaddr strconst x
	375	op_targ PL_op->op_targ PADOFFSET
	376	op_type PL_op OPCODE x
	377	op_seq PL_op->op_seq U16
	378	op_flags PL_op->op_flags U8
	379	op_private PL_op->op_private U8
	380	op_first cUNOP->op_first opindex
	381	op_last cBINOP->op_last opindex
	382	op_other cLOGOP->op_other opindex
92742e37 GS	383	op_children cLISTOP->op_children U32
	384	op_pmreplroot cPMOP->op_pmreplroot opindex
	385	op_pmreplrootgv (SV*)&cPMOP->op_pmreplroot svindex
	386	op_pmreplstart cPMOP->op_pmreplstart opindex
	387	op_pmnext (OP*)&cPMOP->op_pmnext opindex
	388	pregcomp PL_op pvcontents x
	389	op_pmflags cPMOP->op_pmflags U16
	390	op_pmpermflags cPMOP->op_pmpermflags U16
	391	op_sv cSVOP->op_sv svindex
7934575e	392	op_padix cPADOP->op_padix PADOFFSET
92742e37 GS	393	op_pv cPVOP->op_pv pvcontents
	394	op_pv_tr cPVOP->op_pv op_tr_array
	395	op_redoop cLOOP->op_redoop opindex
	396	op_nextop cLOOP->op_nextop opindex
	397	op_lastop cLOOP->op_lastop opindex
059a8bb7 JH	398	cop_label cCOP->cop_label pvindex
	399	cop_stashpv cCOP pvindex x
	400	cop_file cCOP pvindex x
92742e37 GS	401	cop_seq cCOP->cop_seq U32
92742e37 GS	402	cop_arybase cCOP->cop_arybase I32
57843af0	403	cop_line cCOP line_t x
b295d113	404	cop_warnings cCOP->cop_warnings svindex
92742e37 GS	405	main_start PL_main_start opindex
	406	main_root PL_main_root opindex
	407	curpad PL_curpad svindex x
059a8bb7 JH	408	push_begin PL_beginav svindex x
	409	push_init PL_initav svindex x
	410	push_end PL_endav svindex x