Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
VCD2VZT(1)		      Filetype Conversion		    VCD2VZT(1)

NAME
       vcd2vzt - Converts VCD files to VZT files

SYNTAX
       vcd2vzt [option]... [VCDFILE] [VZTFILE]

DESCRIPTION
       Converts	VCD files to VZT files.

OPTIONS
       -v,--vcdname <filename>
	      Specify VCD input	filename.

       -l,--vztname <filename>
	      Specify VZT output filename.

       -d,--depth <value>
	      Specify 0..9 gzip	compression depth, default is 4.

       -m,--maxgranule <value>
	      Specify number of	granules per section, default is 8.  One gran-
	      ule is equal to 32 timesteps.

       -b,--break <value>
	      Specify break size (default = 0 =	off).  When the	break size  is
	      exceeded,	 the VZT dumper	will dump all state information	at the
	      next convenient granule plus dictionary boundary.

       -z,--ziptype <value>
	      Specify zip type (default	= 0 gzip, 1 = bzip2, 2 = lzma).	  This
	      allows  you to override the default compression algorithm	to use
	      a	more effective one at the expense of  greater  runtime.	  Note
	      that  bzip2  does	 not  decompress as fast as gzip so the	viewer
	      will be about two	times slower when decompressing	blocks.

       -t,--twostate
	      Forces MVL2 twostate mode	(default is MVL4).  When enabled,  the
	      trace will only store 0/1	values for binary facilities.  This is
	      useful for functional simulation and will	speed  up  dumping  as
	      well as make traces somewhat smaller.

       -r, --rle
	      Uses  an bitwise RLE compression on the value table.  Default is
	      off.  When enabled, this causes  the  trace  data	 table	to  be
	      stored  using an alternate representation	which can improve com-
	      pression in many cases.

       -h,--help
	      Show help	screen.

       EXAMPLES

       Note that you should specify  dumpfile.vcd  directly  or	 use  "-"  for
       stdin.

       vcd2vzt dumpfile.vcd dumpfile.lxt --depth 9 --break 1073741824
	      This  sets the compression level to 9 and	sets the break size to
	      1GB.

       vcd2vzt dumpfile.vcd dumpfile.lxt --depth 9 --maxgranule	512
	      Allows more granules per section which allows for	 greater  com-
	      pression at the expense of memory	usage.

LIMITATIONS
       vcd2vzt	does  not  store glitches as these are coalesced together into
       one value change	during the writing of the VZT file.

AUTHORS
       Anthony Bybell <bybell@rocketmail.com>

SEE ALSO
       vzt2vcd(1) lxt2vcd(1) vcd2lxt2(1) gtkwave(1)

Anthony	Bybell			    3.1.21			    VCD2VZT(1)

NAME | SYNTAX | DESCRIPTION | OPTIONS | LIMITATIONS | AUTHORS | SEE ALSO

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=vcd2vzt&sektion=1&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help