NAME

       verga - VERrilog simulator for tkGAte

SYNOPSIS

       verga  [-eslqi]  [-d  dtype]  [-S script] [-P mods] [-t mod] [-B dir] [-D hash] [-W wmode]
       [files...]

DESCRIPTION

       Verga is a verilog simulator designed to be used with tkgate, but it can also be used as a
       stand-alone simulator.

       Verga documentation can be found at:

       http://www.tkgate.org

OPTIONS

       The options are as follows:

       -e             Dump  the  list of error codes and associated messages that can be produced
                      by verga.  This option is primarily for developer purposes.

       -s             Scan a Verilog file and output information  about  its  modules  and  nets.
                      This option is primarily used internally by tkgate.

       -l             Show the verga license.

       -q             Run in 'quiet' mode, suppressing extraneous messages.

       -i             Run  in  'interactive'  mode.  This mode is intended primarily for use when
                      verga is being invoked by tkgate.

       -d dtype       Type of delays to use.  Can be 'min', 'max' or 'typical'.

       -S script      Load simulation scripts for each '-S' switch.

       -P mod         Print the named module from the parsed structure for each '-P' specified.

       -t mod         Override the default and designate 'mod' as the top-level module.

       -B dir         Directory to use as base directory when loading files

       -D hash        Delete the input files after loading if 'hash' exactly matches a hash  code
                      computed on the file name.  This option should only be used by tkgate which
                      writes the file to  simulate  to  a  temporary  file  before  invoking  the
                      simulator.

       -W wmode       Mode  for  warning message handling.  Can be 1 for "ignore warnings", 2 for
                      "report warnings only if there were errors", 3 for "always report warnings"
                      or 4 for "always report warnings and stop simulator even if only warnings".

HISTORY & CREDITS

       TkGate begin life as an undergraduate project at Carnegie Mellon University (CMU) in 1987.
       At that time it was called simply  'gate'  and  ran  under  the  'wm'  window  manager,  a
       windowing  system developed at CMU before X11 was widely used.  In this incarnation it was
       used by students  in  the  computer  architecture  course  at  CMU  to  develop  a  simple
       microprocessor  (dubbed  "The  Bat Computer").  After laying dormant for several years, it
       was resurrected in 1991 and  ported  to  run  under  X11  with  the  Xlib  API.   In  this
       incarnation  it  was  used  several  times  by  students in the introductory digital logic
       course, but after the author graduated and left CMU, it went into hibernation again.  This
       Tcl/Tk  incarnation  was  begun  in 1998.  While there is certainly some cruftyness in the
       implementation in places due to the multiple reincarnations, many new features  have  been
       added  since the older wm and X11 versions, and the interface has been made much easier to
       use.

SEE ALSO

       gmac(1), tkgate(1)

AUTHOR

       Jeffery Hansen (hansen@tkgate.org)

COPYRIGHT

       Copyright (c) 1987-2007 by Jeffery Hansen

                                                                                         VERGA(1)