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Manual Reference Pages  -  VPPREPROC (1)

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NAME

vppreproc - Preprocess Verilog code using verilog-perl

CONTENTS

SYNOPSIS



  vppreproc --help
  vppreproc [verilog_options] [-o filename] [verilog_files.v...]



DESCRIPTION

Vppreproc reads the Verilog files passed on the command line and outputs preprocessed output to standard out or the filename passed with <B>-oB>.

Note vppreproc was named vppp until release 3.100, so if you’re looking for vppp, this is the right replacement. The vppp name conflicted with another non-Verilog related tool.

VERILOG ARGUMENTS

The following arguments are compatible with GCC, VCS and most Verilog programs.
+define+var+value =item -Dvar=value Defines the given preprocessor symbol.
-f file Read the specified file, and act as if all text inside it was specified as command line parameters.
-f file Read the specified file, and act as if all text inside it was specified as command line parameters. Any relative paths are relative to the current directory.
+incdir+dir =item -Idir Add the directory to the list of directories that should be searched for include directories or libraries.
+libext+ext+ext... Specify the extensions that should be used for finding modules. If for example module x is referenced, look in x.ext.
-y dir Add the directory to the list of directories that should be searched for include directories or libraries.

VPPREPROC ARGUMENTS

--help Displays this message and program version and exits.
--o file Use the given filename for output instead of stdout.
--dump-defines Suppress normal output, and instead print a list of all defines existing at the end of processing the input file.
--noblank Removes empty lines from the output. Should be used with --noline, as if correct line numbers are needed, blank lines must be preserved for proper accounting by the program reading the output of vppreproc.
--nocomment Remove comments.
--noline Remove ‘line directives.
-P Same as --noline --noblank, similar to GCC -P behavior.
--pedantic Rigorously obey the Verilog spec. This disables the ‘error feature, and may disable other features that are not specified in the approved language reference manual. Defaults false.
--simple Requests simple output, an alias for --noline, --nocomment and --noblank.
--sythesis Define SYNTHESIS, and ignore text bewteen ambit, pragma, synopsys or synthesis translate_off and translate_on meta comments. Note using metacomments is discouraged as they have led to silicon bugs (versus ifdef SYNTHESIS); see <http://www.veripool.org/papers/TenIPEdits_SNUGBos07_paper.pdf>.
--version Displays program version and exits.

LANGUAGE EXTENSIONS

Vppreproc supports the preprocessing constructs defined in the Verilog 2001 and SystemVerilog 2005 standards.

The following additional constructs may be added to your Verilog code.
‘__FILE__ The __FILE__ define expands to the current filename as a string, like C++’s __FILE__. This was incorporated into to the 1800-2009 standard (but supported by Verilog-Perl since 2004!)
‘__LINE__ The __LINE__ define expands to the current filename as a string, like C++’s __LINE__. This was incorporated into to the 1800-2009 standard (but supported by Verilog-Perl since 2004!)
‘error string This will report an error when encountered, like C++’s #error.

DISTRIBUTION

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

Copyright 2000-2016 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

Wilson Snyder <wsnyder@wsnyder.org>

SEE ALSO

Verilog-Perl, Verilog::Getopt, Verilog::Preproc
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