Ubuntu Manpage: vrename - change signal names across many Verilog files

Provided by: libverilog-perl_3.478-1build1_amd64

NAME

       vrename - change signal names across many Verilog files

SYNOPSIS

         vrename <filename_or_directory>...

DESCRIPTION

       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>....]

       Note that in the signals.vrename file any signal names including special characters must follow Verilog
       naming rules in that they must be escaped with a leading backslash and trailing space.  Vrename will
       attempt to preserve spacing when changing escaped to non-escaped names and vice-versa, however in some
       cases extra whitespace may be inserted to ensure proper downstream parsing.

ARGUMENTS

vrename takes the following arguments:

--help
Displays this message and program version and exits.

--version
Displays program version and exits.

--change
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".

--changelang
Include in the signals.vrename file the template needed to change the language standard for the file.
For the first run, use "--list --changelang" and --language to specify the file's original language,
then rerun with the "--change" option. The files will get escaped identifiers for the most recent
Verilog standard. For example with --language 1364-2005, "do" will become "\do ".

--crypt
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.

--cryptall
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.

--keywords
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 'bit').

--language <1364-1995|1364-2001|1364-2005|1800-2005|1800-2009|1800-2012|1800-2017>
Set the language standard for the files. This determines which tokens are signals versus keywords,
such as the ever-common "do" (data-out signal, versus a do-while loop keyword).

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

--nowrite
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 directory.

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

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

DISTRIBUTION

       Verilog-Perl is part of the <https://www.veripool.org/> free Verilog EDA software tool suite.  The latest
       version is available from CPAN and from <https://www.veripool.org/verilog-perl>.

       Copyright 2000-2021 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.

AUTHORS