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

6       vrename - change signal names across many Verilog files
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SYNOPSIS

9         vrename <filename_or_directory>...
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DESCRIPTION

12       Vrename will allow a signal to be changed across all levels of the
13       design hierarchy, or to create a cross reference of signal names.  (It
14       actually includes module names, macros, and other definitions, so those
15       can be changed too.)
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17       Vpm uses a three step process.  First, use
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19           vrename --list  [<file.v>...]  [<directory>....]
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21       This reads the specified files, or all files below the specified
22       directory, and creates a signals.vrename file.
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24       Now, edit the signals.vrename file manually to specify the new signal
25       names.  Then, use
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27           vrename --change [<file.v>...]  [<directory>....]
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29       Note that in the signals.vrename file any signal names including
30       special characters must follow Verilog naming rules in that they must
31       be escaped with a leading backslash and trailing space.  Vrename will
32       attempt to preserve spacing when changing escaped to non-escaped names
33       and vice-versa, however in some cases extra whitespace may be inserted
34       to ensure proper downstream parsing.
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ARGUMENTS

37       vrename takes the following arguments:
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39       --help
40           Displays this message and program version and exits.
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42       --version
43           Displays program version and exits.
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45       --change
46           Take the signals file signals.vrename in the current directory and
47           change the signals in the design as specified by the signals file.
48           Either --list or --change must be specified.
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50       --changefile {file}
51           Use the given filename instead of "signals.vrename".
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53       --changelang
54           Include in the signals.vrename file the template needed to change
55           the language standard for the file.  For the first run, use "--list
56           --changelang" and --language to specify the file's original
57           language, then rerun with the "--change" option.  The files will
58           get escaped identifiers for the most recent Verilog standard.  For
59           example with --language 1364-2005, "do" will become "\do ".
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61       --crypt
62           With --list, randomize the signal renames.  With --change, compress
63           spaces and comments and apply those renames listed in the file
64           (presumably created with vrename --list --crypt).
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66           The comment /*ENCRYPT_ME*/ must be included in all files that need
67           to be encrypted, or use the --cryptall flag.  If a signal should
68           not be encrypted, it can simply be set in the signals.vrename list
69           to be changed to itself.  After encrypting, you may want to save
70           the signals.vrename file so you have a key for decoding, and also
71           so that it may be used for the next encryption run.  When used in
72           this way for the next encryption run, only new signals will get new
73           encryptions, all other encryptions will be encrypted the same.
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75       --cryptall
76           As with --crypt, but put cryptic names into signals.vrename even if
77           the file does not include ENCRYPT_ME.  Generally you will then need
78           to edit the signals.vrename file manually to exclude any top level
79           signals that should be preserved.
80
81       --keywords
82           Include keywords in the renaming list.  Default is to ignore
83           keywords, as changing a keyword will probably result in unrunnable
84           code, however, occasionally it may be necessary to rename signals
85           which happen to match the name of keywords recently added to the
86           language (such as 'bit').
87
88       --language
89       <1364-1995|1364-2001|1364-2005|1800-2005|1800-2009|1800-2012|1800-2017>
90           Set the language standard for the files.  This determines which
91           tokens are signals versus keywords, such as the ever-common "do"
92           (data-out signal, versus a do-while loop keyword).
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94       --list
95           Create a list of signals in the design and write to
96           signals.vrename.  Either --list or --change must be specified.
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98       --nowrite
99           Don't write the actual changes, just report the files that would be
100           changed.
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102       --o {dir}
103           Use the given directory for output instead of the current
104           directory.
105
106       --read
107           Read the changes list, allows --list to append to the changes
108           already read.
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110       --xref
111           Include a cross reference of where the signals are used.  --list
112           must also be specified.
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DISTRIBUTION

115       Verilog-Perl is part of the <https://www.veripool.org/> free Verilog
116       EDA software tool suite.  The latest version is available from CPAN and
117       from <https://www.veripool.org/verilog-perl>.
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119       Copyright 2000-2021 by Wilson Snyder.  This package is free software;
120       you can redistribute it and/or modify it under the terms of either the
121       GNU Lesser General Public License Version 3 or the Perl Artistic
122       License Version 2.0.
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AUTHORS

125       Wilson Snyder <wsnyder@wsnyder.org>
126

SEE ALSO

128       Verilog-Perl, Verilog::Parser
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132perl v5.32.1                      2021-04-14                        VRENAME(1)
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