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adding comments
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rginda%netscape.com
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cdf10d48f2
@ -7,6 +7,27 @@ my $class_decs = "";
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my @name_array;
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my $opcode_maxlen = 0;
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#
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# template definitions for compare, arithmetic, and conditional branch ops
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#
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# fields are:
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#
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# * super: Class to inherit from, if super is Instruction_(1|2|3), the script
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# will automatically append the correct template info based on |params|
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# * super_has_print: Set to 1 if you want to inherit the print() method from the
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# superclass, set to 0 (or just don't set) otherwise.
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# * rem: Remark you want to show up after the enum def, and inside the class.
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# * params: The parameter list expected by the constructor, you can specify a
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# default value, using the syntax, [ ("Type = default") ].
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#
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# class namea will be generated based on the opcode mnemonic. See the
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# subroutine get_classname for the implementation. Basically underscores will
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# be removes and the class name will be WordCapped, using the positions where the
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# underscores were as word boundries. The only exception occurs when a word is
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# two characters, in which case both characters will be capped,
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# as in BRANCH_GT -> BranchGT.
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#
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my $compare_op =
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{
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super => "Compare",
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@ -31,6 +52,10 @@ my $cbranch_op =
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params => [ ("Label*", "Register") ]
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};
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#
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# op defititions
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#
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my %ops;
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$ops{"NOP"} =
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{
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@ -144,21 +169,29 @@ $ops{"CALL"} =
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params => [ ("Register" , "Register", "RegisterList") ]
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};
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#
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# nasty perl code, you probably don't need to muck around below this line
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#
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my $k;
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if (!$ARGV[0]) {
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# no args, collect all opcodes
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for $k (sort(keys(%ops))) {
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&collect($k);
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}
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} else {
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# collect defs for only the opcodes specified on the command line
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while ($k = pop(@ARGV)) {
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&collect ($k);
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&collect (uc($k));
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}
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}
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&spew;
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sub collect {
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# grab the info from the $k record in $ops, and append it to
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# $enum_decs, @name_aray, and $class_decs.
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my ($k) = @_;
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if (length($k) > $opcode_maxlen) {
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@ -166,6 +199,10 @@ sub collect {
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}
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my $c = $ops{$k};
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if (!$c) {
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die ("Unknown opcode, $k\n");
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}
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my $opname = $k;
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my $cname = get_classname ($k);
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my $super = $c->{"super"};
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@ -207,6 +244,7 @@ sub collect {
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}
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sub spew {
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# print the info in $enum_decs, @name_aray, and $class_decs to stdout.
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my $opname;
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print $tab . "enum ICodeOp {\n$enum_decs$tab};\n\n";
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@ -224,6 +262,7 @@ sub spew {
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}
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sub get_classname {
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# munge an OPCODE_MNEMONIC into a ClassName
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my ($enum_name) = @_;
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my @words = split ("_", $enum_name);
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my $cname = "";
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@ -242,6 +281,8 @@ sub get_classname {
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}
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sub get_paramlists {
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# parse the params entry (passed into @types) into various parameter lists
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# used in the class declaration
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my @types = @_;
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my @dec;
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my @call;
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@ -274,6 +315,7 @@ sub get_paramlists {
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}
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sub get_printbody {
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# generate the body of the print() function
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my (@types) = @_;
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my $type;
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my @oplist;
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@ -7,6 +7,27 @@ my $class_decs = "";
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my @name_array;
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my $opcode_maxlen = 0;
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#
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# template definitions for compare, arithmetic, and conditional branch ops
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#
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# fields are:
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#
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# * super: Class to inherit from, if super is Instruction_(1|2|3), the script
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# will automatically append the correct template info based on |params|
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# * super_has_print: Set to 1 if you want to inherit the print() method from the
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# superclass, set to 0 (or just don't set) otherwise.
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# * rem: Remark you want to show up after the enum def, and inside the class.
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# * params: The parameter list expected by the constructor, you can specify a
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# default value, using the syntax, [ ("Type = default") ].
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#
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# class namea will be generated based on the opcode mnemonic. See the
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# subroutine get_classname for the implementation. Basically underscores will
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# be removes and the class name will be WordCapped, using the positions where the
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# underscores were as word boundries. The only exception occurs when a word is
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# two characters, in which case both characters will be capped,
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# as in BRANCH_GT -> BranchGT.
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#
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my $compare_op =
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{
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super => "Compare",
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@ -31,6 +52,10 @@ my $cbranch_op =
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params => [ ("Label*", "Register") ]
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};
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#
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# op defititions
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#
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my %ops;
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$ops{"NOP"} =
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{
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@ -144,21 +169,29 @@ $ops{"CALL"} =
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params => [ ("Register" , "Register", "RegisterList") ]
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};
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#
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# nasty perl code, you probably don't need to muck around below this line
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#
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my $k;
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if (!$ARGV[0]) {
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# no args, collect all opcodes
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for $k (sort(keys(%ops))) {
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&collect($k);
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}
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} else {
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# collect defs for only the opcodes specified on the command line
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while ($k = pop(@ARGV)) {
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&collect ($k);
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&collect (uc($k));
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}
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}
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&spew;
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sub collect {
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# grab the info from the $k record in $ops, and append it to
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# $enum_decs, @name_aray, and $class_decs.
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my ($k) = @_;
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if (length($k) > $opcode_maxlen) {
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@ -166,6 +199,10 @@ sub collect {
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}
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my $c = $ops{$k};
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if (!$c) {
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die ("Unknown opcode, $k\n");
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}
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my $opname = $k;
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my $cname = get_classname ($k);
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my $super = $c->{"super"};
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@ -207,6 +244,7 @@ sub collect {
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}
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sub spew {
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# print the info in $enum_decs, @name_aray, and $class_decs to stdout.
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my $opname;
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print $tab . "enum ICodeOp {\n$enum_decs$tab};\n\n";
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@ -224,6 +262,7 @@ sub spew {
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}
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sub get_classname {
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# munge an OPCODE_MNEMONIC into a ClassName
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my ($enum_name) = @_;
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my @words = split ("_", $enum_name);
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my $cname = "";
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@ -242,6 +281,8 @@ sub get_classname {
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}
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sub get_paramlists {
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# parse the params entry (passed into @types) into various parameter lists
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# used in the class declaration
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my @types = @_;
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my @dec;
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my @call;
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@ -274,6 +315,7 @@ sub get_paramlists {
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}
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sub get_printbody {
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# generate the body of the print() function
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my (@types) = @_;
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my $type;
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my @oplist;
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