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<h1><a name="visualization_tool_for_vcd_lxt_and_vzt_files_gtkwave" id="visualization_tool_for_vcd_lxt_and_vzt_files_gtkwave">Visualization tool for VCD, LXT, and VZT files (gtkwave)</a></h1>
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<pre class="code">GTKWAVE(1)		    Simulation Wave Viewer		    GTKWAVE(1)



NAME
       gtkwave - Visualization tool for VCD, LXT, and VZT files

SYNTAX
       gtkwave [option]... [DUMPFILE] [SAVEFILE] [RCFILE]


DESCRIPTION
       Visualization  tool  for	 VCD,  LXT, LXT2, and VZT.  VCD is an industry
       standard simulation dump format. LXT, LXT2, and VZT have been  designed
       specifically for use with gtkwave.  Native dumpers exist in Icarus Ver-
       ilog for the LXT formats so conversion with vcd2lxt(1)  or  vcd2lxt2(1)
       is  not	necessary to take direct advantage of LXT with that simulator.
       AET2 files can also be processed provided that  libae2rw	 is  available
       but this is only of interest to people who use IBM EDA toolsets.

OPTIONS
       -n,--nocli &lt;directory name&gt;
	      Use file requester for dumpfile name

       -f,--dump &lt;filename&gt;
	      Specify dumpfile name.

       -r,--rcfile &lt;filename&gt;
	      Specify override .gtkwaverc filename.

       -i,--indirect &lt;filename&gt;
	      Specify  indirect facs file name.	 The file contains a series of
	      regular expressions used to limit what signals can  be  browsed.
	      Signal  names which match any of the regular expressions will be
	      viewable.	 Typically, indirect files are used to	reduce	memory
	      requirements  for	 extremely large models containing millions of
	      facilities or to strip  out  top-level  hierarchy	 clutter  from
	      BugSpray	models.	  This feature is only available with the AET2
	      loader.

       -l,--logfile &lt;filename&gt;
	      Specify simulation logfile name.	Multiple logfiles may be spec-
	      ified  by	 preceeding  each with the command flag.  By selecting
	      the numbers in the text widget, the marker will immediately zoom
	      to the specific time value.

       -d,--defaultskip
	      If  there is not a .gtkwaverc file in the home directory or cur-
	      rent directory and it is not explicitly specified on the command
	      line,  when  this option is enabled, do not use an implicit con-
	      figuration file and instead default  to  the  old	 &quot;whitescreen&quot;
	      behavior.

       -s,--start &lt;time&gt;
	      Specify start time for LXT2/VZT block skip.

       -e,--end &lt;time&gt;
	      Specify end time for LXT2/VZT block skip.

       -c,--cpu &lt;numcpus&gt;
	      Specify  number  of CPUs available for parallelizable ops (e.g.,
	      block prefetching on VZT reads).

       -v,--vcd
	      Use stdin as a VCD dumpfile.

       -V,--version
	      Display version banner then exit.

       -h,--help
	      Display help then exit.

       -x,--exit
	      Exit after loading trace (for loader benchmarking).

FILES
       ~/.gtkwaverc


EXAMPLES
       To run this program the standard way type:
	      gtkwave dumpfile.vcd

       Alternatively you can run it with a save file as:
	      gtkwave dumpfile.vcd dumpfile.sav

       Command line options are not necessary for representing	the  dumpfile,
       savefile, and rcfile names.  They are merely provided to allow specify-
       ing them out of order.  Note that on non-glibc systems, the  long  com-
       mand  line  options  will not be available and that the short ones will
       have to be used instead.

AUTHORS
       Anthony Bybell &lt;bybell@nc.rr.com&gt;

SEE ALSO
       lxt2vcd(1) vcd2lxt(1) vcd2lxt2(1) vzt2vcd(1) vcd2vzt(1)



Anthony Bybell			    1.3.70			    GTKWAVE(1)</pre>

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