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 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 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 compression 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)