vppreproc(1)

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

6       vppreproc - Preprocess Verilog code using verilog-perl
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SYNOPSIS

9         vppreproc --help
10         vppreproc [verilog_options] [-o filename] [verilog_files.v...]
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DESCRIPTION

13       Vppreproc reads the Verilog files passed on the command line and
14       outputs preprocessed output to standard out or the filename passed with
15       -o.
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17       Note vppreproc was named vppp until release 3.100, so if you're looking
18       for vppp, this is the right replacement.  The vppp name conflicted with
19       another non-Verilog related tool.
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VERILOG ARGUMENTS

22       The following arguments are compatible with GCC, VCS and most Verilog
23       programs.
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25       +define+var+value =item -Dvar=value
26           Defines the given preprocessor symbol.
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28       -f file
29           Read the specified file, and act as if all text inside it was
30           specified as command line parameters.
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32       -f file
33           Read the specified file, and act as if all text inside it was
34           specified as command line parameters.  Any relative paths are
35           relative to the current directory.
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37       +incdir+dir =item -Idir
38           Add the directory to the list of directories that should be
39           searched for include directories or libraries.
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41       +libext+ext+ext...
42           Specify the extensions that should be used for finding modules.  If
43           for example module x is referenced, look in x.ext.
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45       -y dir
46           Add the directory to the list of directories that should be
47           searched for include directories or libraries.
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VPPREPROC ARGUMENTS

50       --help
51           Displays this message and program version and exits.
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53       --o file
54           Use the given filename for output instead of stdout.
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56       --dump-defines
57           Suppress normal output, and instead print a list of all defines
58           existing at the end of processing the input file.
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60       --noblank
61           Removes empty lines from the output.  Should be used with --noline,
62           as if correct line numbers are needed, blank lines must be
63           preserved for proper accounting by the program reading the output
64           of vppreproc.
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66       --nocomment
67           Remove comments.
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69       --noline
70           Remove `line directives.
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72       -P  Same as --noline --noblank, similar to "GCC -P" behavior.
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74       --pedantic
75           Rigorously obey the Verilog spec.  This disables the `error
76           feature, and may disable other features that are not specified in
77           the approved language reference manual. Defaults false.
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79       --simple
80           Requests simple output, an alias for --noline, --nocomment and
81           --noblank.
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83       --synthesis
84           Define SYNTHESIS, and ignore text between "ambit", "pragma",
85           "synopsys" or "synthesis" translate_off and translate_on meta
86           comments.  Note using metacomments is discouraged as they have led
87           to silicon bugs (versus ifdef SYNTHESIS); see
88           <https://www.veripool.org/papers/TenIPEdits_SNUGBos07_paper.pdf>.
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90       --version
91           Displays program version and exits.
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LANGUAGE EXTENSIONS

94       Vppreproc supports the preprocessing constructs defined in the Verilog
95       2001 and SystemVerilog 2005 standards.
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97       The following additional constructs may be added to your Verilog code.
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99       `__FILE__
100           The __FILE__ define expands to the current filename as a string,
101           like C++'s __FILE__.  This was incorporated into to the 1800-2009
102           standard (but supported by Verilog-Perl since 2004!)
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104       `__LINE__
105           The __LINE__ define expands to the current filename as a string,
106           like C++'s __LINE__.  This was incorporated into to the 1800-2009
107           standard (but supported by Verilog-Perl since 2004!)
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109       `error string
110           This will report an error when encountered, like C++'s #error.
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DISTRIBUTION

113       Verilog-Perl is part of the <https://www.veripool.org/> free Verilog
114       EDA software tool suite.  The latest version is available from CPAN and
115       from <https://www.veripool.org/verilog-perl>.
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117       Copyright 2000-2022 by Wilson Snyder.  This package is free software;
118       you can redistribute it and/or modify it under the terms of either the
119       GNU Lesser General Public License Version 3 or the Perl Artistic
120       License Version 2.0.
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AUTHORS

123       Wilson Snyder <wsnyder@wsnyder.org>
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