[p5sagit/p5-mst-13.2.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';
};

static int bytecode_iv_overflows = 0;
static void **bytecode_obj_list = Null(void**);
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 + 32, void*);
	else
	    Renew(bytecode_obj_list, ix + 32, void*);
	bytecode_obj_list_fill = ix;
    }
    bytecode_obj_list[ix] = obj;
    return obj;
}

void
byterun(pTHXo)
{
    dTHR;
    int insn;
    SV *bytecode_sv;
    XPV bytecode_pv;
    SV *specialsv_list[6];
    ENTER;
    SAVEVPTR(bytecode_obj_list);
    SAVEI32(bytecode_obj_list_fill);
    bytecode_obj_list = Null(void**);
    bytecode_obj_list_fill = -1;

    BYTECODE_HEADER_CHECK;	/* croak if incorrect platform */
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 { /* XXX: not currently used - too slow */
    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);
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
push_begin	PL_beginav				svindex		x
push_init	PL_initav				svindex		x
push_end	PL_endav				svindex		x
Commit	Line	Data
73f0cc2d	1	BEGIN {
	2	push @INC, './lib';
	3	}
a8a597b2	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	10	);
a8a597b2	11
7934575e	12	my @optype= qw(OP UNOP BINOP LOGOP LISTOP PMOP SVOP PADOP PVOP LOOP COP);
a8a597b2	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).
e8fcef16	16	my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no pWARN_ALL pWARN_NONE);
a8a597b2	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	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	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	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	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	66	print BYTERUN_C $c_header, <<'EOT';
a8a597b2	67
c5be433b	68	#define PERL_NO_GET_CONTEXT
a8a597b2	69	#include "EXTERN.h"
a8a597b2	70	#include "perl.h"
0cb96387	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	81	#include "byterun.h"
	82	#include "bytecode.h"
	83
0cb96387	84
e8fcef16	85	static const int optype_size[] = {
e8edd1e6	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
e8edd1e6	95	static int bytecode_iv_overflows = 0;
e8fcef16	96	static void bytecode_obj_list = Null(void);
e8edd1e6	97	static I32 bytecode_obj_list_fill = -1;
d613ef02	98
d613ef02	99	void *
0cb96387	100	bset_obj_store(pTHXo_ void *obj, I32 ix)
d613ef02	101	{
e8edd1e6	102	if (ix > bytecode_obj_list_fill) {
e8edd1e6	103	if (bytecode_obj_list_fill == -1)
e8fcef16	104	New(666, bytecode_obj_list, ix + 32, void*);
d613ef02	105	else
e8fcef16	106	Renew(bytecode_obj_list, ix + 32, void*);
e8edd1e6	107	bytecode_obj_list_fill = ix;
d613ef02	108	}
e8edd1e6	109	bytecode_obj_list[ix] = obj;
d613ef02	110	return obj;
d613ef02	111	}
a8a597b2	112
cea2e8a9	113	void
e8fcef16	114	byterun(pTHXo)
a8a597b2	115	{
	116	dTHR;
	117	int insn;
e8fcef16	118	SV *bytecode_sv;
	119	XPV bytecode_pv;
	120	SV *specialsv_list[6];
	121	ENTER;
	122	SAVEVPTR(bytecode_obj_list);
	123	SAVEI32(bytecode_obj_list_fill);
	124	bytecode_obj_list = Null(void**);
	125	bytecode_obj_list_fill = -1;
	126
	127	BYTECODE_HEADER_CHECK; /* croak if incorrect platform */
e8edd1e6	128	EOT
	129
	130	for (my $i = 0; $i < @specialsv; $i++) {
	131	print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n";
	132	}
	133
	134	print BYTERUN_C <<'EOT';
	135
47358472	136	while ((insn = BGET_FGETC()) != EOF) {
a8a597b2	137	switch (insn) {
	138	EOT
	139
	140
	141	my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);
	142
	143	while (<DATA>) {
	144	chop;
	145	s/#.*//; # remove comments
	146	next unless length;
	147	if (/^%number\s+(.*)/) {
	148	$insn_num = $1;
	149	next;
	150	} elsif (/%enum\s+(.?)\s+(.)/) {
	151	create_enum($1, $2); # must come before instructions
	152	next;
	153	}
	154	($insn, $lvalue, $argtype, $flags) = split;
	155	$insn_name[$insn_num] = $insn;
	156	$fundtype = $alias_from{$argtype} \|\| $argtype;
	157
	158	#
	159	# Add the case statement and code for the bytecode interpreter in byterun.c
	160	#
	161	printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n",
	162	uc($insn), $insn_num;
	163	my $optarg = $argtype eq "none" ? "" : ", arg";
	164	if ($optarg) {
	165	printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype;
	166	}
	167	if ($flags =~ /x/) {
	168	print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
	169	} elsif ($flags =~ /s/) {
e8edd1e6	170	# Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue.
a8a597b2	171	print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
	172	}
	173	elsif ($optarg && $lvalue ne "none") {
	174	print BYTERUN_C "\t\t$lvalue = arg;\n";
	175	}
	176	print BYTERUN_C "\t\tbreak;\n\t }\n";
	177
	178	#
	179	# Add the initialiser line for %insn_data in Asmdata.pm
	180	#
	181	print ASMDATA_PM <<"EOT";
	182	\$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"];
	183	EOT
	184
	185	# Find the next unused instruction number
	186	do { $insn_num++ } while $insn_name[$insn_num];
	187	}
	188
	189	#
	190	# Finish off byterun.c
	191	#
	192	print BYTERUN_C <<'EOT';
	193	default:
cea2e8a9	194	Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn);
a8a597b2	195	/* NOTREACHED */
	196	}
	197	}
	198	}
	199	EOT
	200
	201	#
	202	# Write the instruction and optype enum constants into byterun.h
	203	#
e8edd1e6	204	open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!";
a8a597b2	205	print BYTERUN_H $c_header, <<'EOT';
e8fcef16	206	struct bytestream { /* XXX: not currently used - too slow */
a8a597b2	207	void *data;
4f63d024	208	int (pfgetc)(void );
	209	int (pfread)(char , size_t, size_t, void *);
	210	void (pfreadpv)(U32, void , XPV *);
a8a597b2	211	};
a8a597b2	212
a8a597b2	213	enum {
	214	EOT
	215
a8a597b2	216	my $add_enum_value = 0;
	217	my $max_insn;
	218	for ($i = 0; $i < @insn_name; $i++) {
	219	$insn = uc($insn_name[$i]);
	220	if (defined($insn)) {
	221	$max_insn = $i;
	222	if ($add_enum_value) {
	223	print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n";
	224	$add_enum_value = 0;
	225	} else {
	226	print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n";
	227	}
	228	} else {
	229	$add_enum_value = 1;
	230	}
	231	}
	232
	233	print BYTERUN_H " MAX_INSN = $max_insn\n};\n";
	234
	235	print BYTERUN_H "\nenum {\n";
	236	for ($i = 0; $i < @optype - 1; $i++) {
	237	printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
	238	}
	239	printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
a8a597b2	240
fe3a57c4	241	print BYTERUN_H <<'EOT';
e8fcef16	242	extern void byterun(pTHXo);
a8a597b2	243	EOT
	244
	245	#
	246	# Finish off insn_data and create array initialisers in Asmdata.pm
	247	#
	248	print ASMDATA_PM <<'EOT';
	249
	250	my ($insn_name, $insn_data);
	251	while (($insn_name, $insn_data) = each %insn_data) {
	252	$insn_name[$insn_data->[0]] = $insn_name;
	253	}
	254	# Fill in any gaps
	255	@insn_name = map($_ \|\| "unused", @insn_name);
	256
	257	1;
42d3a99d	258
	259	__END__
	260
	261	=head1 NAME
	262
	263	B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode
	264
	265	=head1 SYNOPSIS
	266
	267	use Asmdata;
	268
	269	=head1 DESCRIPTION
	270
	271	See F<ext/B/B/Asmdata.pm>.
	272
	273	=head1 AUTHOR
	274
	275	Malcolm Beattie, C<mbeattie@sable.ox.ac.uk>
	276
	277	=cut
a8a597b2	278	EOT
	279
	280	__END__
	281	# First set instruction ord("#") to read comment to end-of-line (sneaky)
	282	%number 35
fe3a57c4	283	comment arg comment_t
a8a597b2	284	# Then make ord("\n") into a no-op
	285	%number 10
	286	nop none none
	287	# Now for the rest of the ordinary ones, beginning with \0 which is
	288	# ret so that \0-terminated strings can be read properly as bytecode.
	289	%number 0
	290	#
92742e37	291	#opcode lvalue argtype flags
a8a597b2	292	#
92742e37	293	ret none none x
e8edd1e6	294	ldsv bytecode_sv svindex
92742e37	295	ldop PL_op opindex
e8edd1e6	296	stsv bytecode_sv U32 s
92742e37	297	stop PL_op U32 s
e8edd1e6	298	ldspecsv bytecode_sv U8 x
e8edd1e6	299	newsv bytecode_sv U8 x
92742e37	300	newop PL_op U8 x
	301	newopn PL_op U8 x
	302	newpv none PV
e8edd1e6	303	pv_cur bytecode_pv.xpv_cur STRLEN
	304	pv_free bytecode_pv none x
	305	sv_upgrade bytecode_sv char x
	306	sv_refcnt SvREFCNT(bytecode_sv) U32
	307	sv_refcnt_add SvREFCNT(bytecode_sv) I32 x
	308	sv_flags SvFLAGS(bytecode_sv) U32
	309	xrv SvRV(bytecode_sv) svindex
	310	xpv bytecode_sv none x
	311	xiv32 SvIVX(bytecode_sv) I32
	312	xiv64 SvIVX(bytecode_sv) IV64
65202027	313	xnv SvNVX(bytecode_sv) NV
e8edd1e6	314	xlv_targoff LvTARGOFF(bytecode_sv) STRLEN
	315	xlv_targlen LvTARGLEN(bytecode_sv) STRLEN
	316	xlv_targ LvTARG(bytecode_sv) svindex
	317	xlv_type LvTYPE(bytecode_sv) char
	318	xbm_useful BmUSEFUL(bytecode_sv) I32
	319	xbm_previous BmPREVIOUS(bytecode_sv) U16
	320	xbm_rare BmRARE(bytecode_sv) U8
	321	xfm_lines FmLINES(bytecode_sv) I32
	322	xio_lines IoLINES(bytecode_sv) long
	323	xio_page IoPAGE(bytecode_sv) long
	324	xio_page_len IoPAGE_LEN(bytecode_sv) long
	325	xio_lines_left IoLINES_LEFT(bytecode_sv) long
	326	xio_top_name IoTOP_NAME(bytecode_sv) pvcontents
	327	xio_top_gv (SV*)&IoTOP_GV(bytecode_sv) svindex
	328	xio_fmt_name IoFMT_NAME(bytecode_sv) pvcontents
	329	xio_fmt_gv (SV*)&IoFMT_GV(bytecode_sv) svindex
	330	xio_bottom_name IoBOTTOM_NAME(bytecode_sv) pvcontents
	331	xio_bottom_gv (SV*)&IoBOTTOM_GV(bytecode_sv) svindex
	332	xio_subprocess IoSUBPROCESS(bytecode_sv) short
	333	xio_type IoTYPE(bytecode_sv) char
	334	xio_flags IoFLAGS(bytecode_sv) char
	335	xcv_stash (SV*)&CvSTASH(bytecode_sv) svindex
	336	xcv_start CvSTART(bytecode_sv) opindex
	337	xcv_root CvROOT(bytecode_sv) opindex
	338	xcv_gv (SV*)&CvGV(bytecode_sv) svindex
57843af0	339	xcv_file CvFILE(bytecode_sv) pvcontents
e8edd1e6	340	xcv_depth CvDEPTH(bytecode_sv) long
	341	xcv_padlist (SV*)&CvPADLIST(bytecode_sv) svindex
	342	xcv_outside (SV*)&CvOUTSIDE(bytecode_sv) svindex
fc290457	343	xcv_flags CvFLAGS(bytecode_sv) U16
e8edd1e6	344	av_extend bytecode_sv SSize_t x
	345	av_push bytecode_sv svindex x
	346	xav_fill AvFILLp(bytecode_sv) SSize_t
	347	xav_max AvMAX(bytecode_sv) SSize_t
	348	xav_flags AvFLAGS(bytecode_sv) U8
	349	xhv_riter HvRITER(bytecode_sv) I32
	350	xhv_name HvNAME(bytecode_sv) pvcontents
	351	hv_store bytecode_sv svindex x
	352	sv_magic bytecode_sv char x
	353	mg_obj SvMAGIC(bytecode_sv)->mg_obj svindex
	354	mg_private SvMAGIC(bytecode_sv)->mg_private U16
	355	mg_flags SvMAGIC(bytecode_sv)->mg_flags U8
	356	mg_pv SvMAGIC(bytecode_sv) pvcontents x
	357	xmg_stash (SV*)&SvSTASH(bytecode_sv) svindex
	358	gv_fetchpv bytecode_sv strconst x
	359	gv_stashpv bytecode_sv strconst x
	360	gp_sv GvSV(bytecode_sv) svindex
	361	gp_refcnt GvREFCNT(bytecode_sv) U32
	362	gp_refcnt_add GvREFCNT(bytecode_sv) I32 x
	363	gp_av (SV*)&GvAV(bytecode_sv) svindex
	364	gp_hv (SV*)&GvHV(bytecode_sv) svindex
	365	gp_cv (SV*)&GvCV(bytecode_sv) svindex
b195d487	366	gp_file GvFILE(bytecode_sv) pvcontents
e8edd1e6	367	gp_io (SV*)&GvIOp(bytecode_sv) svindex
	368	gp_form (SV*)&GvFORM(bytecode_sv) svindex
	369	gp_cvgen GvCVGEN(bytecode_sv) U32
	370	gp_line GvLINE(bytecode_sv) line_t
	371	gp_share bytecode_sv svindex x
	372	xgv_flags GvFLAGS(bytecode_sv) U8
92742e37	373	op_next PL_op->op_next opindex
	374	op_sibling PL_op->op_sibling opindex
	375	op_ppaddr PL_op->op_ppaddr strconst x
	376	op_targ PL_op->op_targ PADOFFSET
	377	op_type PL_op OPCODE x
	378	op_seq PL_op->op_seq U16
	379	op_flags PL_op->op_flags U8
	380	op_private PL_op->op_private U8
	381	op_first cUNOP->op_first opindex
	382	op_last cBINOP->op_last opindex
	383	op_other cLOGOP->op_other opindex
92742e37	384	op_children cLISTOP->op_children U32
	385	op_pmreplroot cPMOP->op_pmreplroot opindex
	386	op_pmreplrootgv (SV*)&cPMOP->op_pmreplroot svindex
	387	op_pmreplstart cPMOP->op_pmreplstart opindex
	388	op_pmnext (OP*)&cPMOP->op_pmnext opindex
	389	pregcomp PL_op pvcontents x
	390	op_pmflags cPMOP->op_pmflags U16
	391	op_pmpermflags cPMOP->op_pmpermflags U16
	392	op_sv cSVOP->op_sv svindex
7934575e	393	op_padix cPADOP->op_padix PADOFFSET
92742e37	394	op_pv cPVOP->op_pv pvcontents
	395	op_pv_tr cPVOP->op_pv op_tr_array
	396	op_redoop cLOOP->op_redoop opindex
	397	op_nextop cLOOP->op_nextop opindex
	398	op_lastop cLOOP->op_lastop opindex
	399	cop_label cCOP->cop_label pvcontents
11faa288	400	cop_stashpv cCOP pvcontents x
57843af0	401	cop_file cCOP pvcontents x
92742e37	402	cop_seq cCOP->cop_seq U32
92742e37	403	cop_arybase cCOP->cop_arybase I32
57843af0	404	cop_line cCOP line_t x
b295d113	405	cop_warnings cCOP->cop_warnings svindex
92742e37	406	main_start PL_main_start opindex
	407	main_root PL_main_root opindex
	408	curpad PL_curpad svindex x
e8fcef16	409	push_begin PL_beginav svindex x
	410	push_init PL_initav svindex x
	411	push_end PL_endav svindex x