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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 granule
	    is equal to 32 timesteps.

     -b,--break <value>
	    Specify break size (default = 0 = off).  When the break size is  ex-
	    ceeded,  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  al-
	    lows 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  compression	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 compres-
	    sion 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)

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