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B::Asmdata (3)
  • >> B::Asmdata (3) ( Разные man: Библиотечные вызовы )
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    NAME

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

    SYNOPSIS

            use B::Asmdata qw(%insn_data @insn_name @optype @specialsv_name);
    
    
     

    DESCRIPTION

    Provides information about Perl ops in order to generate bytecode via a bunch of exported variables. Its mostly used by B::Assembler and B::Disassembler.
    %insn_data
      my($bytecode_num, $put_sub, $get_meth) = @$insn_data{$op_name};
    
    

    For a given $op_name (for example, 'cop_label', 'sv_flags', etc...) you get an array ref containing the bytecode number of the op, a reference to the subroutine used to 'PUT', and the name of the method used to 'GET'.

    @insn_name
      my $op_name = $insn_name[$bytecode_num];
    
    

    A simple mapping of the bytecode number to the name of the op. Suitable for using with %insn_data like so:

      my $op_info = $insn_data{$insn_name[$bytecode_num]};
    
    
    @optype
      my $op_type = $optype[$op_type_num];
    
    

    A simple mapping of the op type number to its type (like 'COP' or 'BINOP').

    @specialsv_name
      my $sv_name = $specialsv_name[$sv_index];
    
    

    Certain SV types are considered 'special'. They're represented by B::SPECIAL and are referred to by a number from the specialsv_list. This array maps that number back to the name of the SV (like 'Nullsv' or '&PL_sv_undef').

     

    AUTHOR

    Malcolm Beattie, "mbeattie@sable.ox.ac.uk"


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    AUTHOR


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