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VRENAME(1p)      User Contributed Perl Documentation     VRENAME(1p)

       vrename - change signal names across many Verilog files

         vrename <filename_or_directory>...

       Vrename will allow a signal to be changed across all levels
       of the design hierarchy, or to create a cross reference of
       signal names.  (It actually includes module names, macros,
       and other definitions, so those can be changed too.)

       Vpm uses a three step process.  First, use

           vrename --list  [<file.v>...]  [<directory>....]

       This reads the specified files, or all files below the
       specified directory, and creates a signals.vrename file.

       Now, edit the signals.vrename file manually to specify the
       new signal names.  Then, use

           vrename --change [<file.v>...]  [<directory>....]

       vrename takes the following arguments:

           Displays this message and program version and exits.

           Displays program version and exits.

           Take the signals file signals.vrename in the current
           directory and change the signals in the design as
           specified by the signals file.  Either --list or --change
           must be specified.

       --changefile {file}
           Use the given filename instead of "signals.vrename".

           With --list, randomize the signal renames.  With
           --change, compress spaces and comments and apply those
           renames listed in the file (presumably created with
           vrename --list --crypt).

           The comment /*ENCRYPT_ME*/ must be included in all files
           that need to be encrypted, or use the --cryptall flag.
           If a signal should not be encrypted, it can simply be set
           in the signals.vrename list to be changed to itself.
           After encrypting, you may want to save the
           signals.vrename file so you have a key for decoding, and
           also so that it may be used for the next encryption run.
           When used in this way for the next encryption run, only
           new signals will get new encryptions, all other
           encryptions will be encrypted the same.

           As with --crypt, but put cryptic names into
           signals.vrename even if the file does not include
           ENCRYPT_ME.  Generally you will then need to edit the
           signals.vrename file manually to exclude any top level
           signals that should be preserved.

           Include keywords in the renaming list.  Default is to
           ignore keywords, as changing a keyword will probably
           result in unrunnable code, however, occasionally it may
           be necessary to rename signals which happen to match the
           name of keywords recently added to the language (such as

           Create a list of signals in the design and write to
           signals.vrename.  Either --list or --change must be

           Don't write the actual changes, just report the files
           that would be changed.

       --o {dir}
           Use the given directory for output instead of the current

           Read the changes list, allows --list to append to the
           changes already read.

           Include a cross reference of where the signals are used.
           --list must also be specified.

       Verilog-Perl is part of the <> free
       Verilog EDA software tool suite.  The latest version is
       available from CPAN and from

       Copyright 2000-2010 by Wilson Snyder.  This package is free
       software; you can redistribute it and/or modify it under the
       terms of either the GNU Lesser General Public License Version
       3 or the Perl Artistic License Version 2.0.

       Wilson Snyder <>

       Verilog-Perl, Verilog::Parser

perl v5.10.1                 2010-06-29                  VRENAME(1p)
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