1VCD2VZT(1)                    Filetype Conversion                   VCD2VZT(1)
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NAME

6       vcd2vzt - Converts VCD files to VZT files
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SYNTAX

9       vcd2vzt [option]... [VCDFILE] [VZTFILE]
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DESCRIPTION

12       Converts VCD files to VZT files.
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OPTIONS

15       -v,--vcdname <filename>
16              Specify VCD input filename.
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18       -l,--vztname <filename>
19              Specify VZT output filename.
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21       -d,--depth <value>
22              Specify 0..9 gzip compression depth, default is 4.
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24       -m,--maxgranule <value>
25              Specify number of granules per section, default is 8.  One gran‐
26              ule is equal to 32 timesteps.
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28       -b,--break <value>
29              Specify break size (default = 0 = off).  When the break size  is
30              exceeded,  the VZT dumper will dump all state information at the
31              next convenient granule plus dictionary boundary.
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33       -z,--ziptype <value>
34              Specify zip type (default = 0 gzip, 1 = bzip2, 2 = lzma).   This
35              allows  you to override the default compression algorithm to use
36              a more effective one at the expense of  greater  runtime.   Note
37              that  bzip2  does  not  decompress as fast as gzip so the viewer
38              will be about two times slower when decompressing blocks.
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40       -t,--twostate
41              Forces MVL2 twostate mode (default is MVL4).  When enabled,  the
42              trace will only store 0/1 values for binary facilities.  This is
43              useful for functional simulation and will speed  up  dumping  as
44              well as make traces somewhat smaller.
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46       -r, --rle
47              Uses  an bitwise RLE compression on the value table.  Default is
48              off.  When enabled, this causes  the  trace  data  table  to  be
49              stored  using an alternate representation which can improve com‐
50              pression in many cases.
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52       -h,--help
53              Show help screen.
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57       EXAMPLES
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59       Note that you should specify  dumpfile.vcd  directly  or  use  "-"  for
60       stdin.
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62       vcd2vzt dumpfile.vcd dumpfile.lxt --depth 9 --break 1073741824
63              This  sets the compression level to 9 and sets the break size to
64              1GB.
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66       vcd2vzt dumpfile.vcd dumpfile.lxt --depth 9 --maxgranule 512
67              Allows more granules per section which allows for  greater  com‐
68              pression at the expense of memory usage.
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LIMITATIONS

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

75       Anthony Bybell <bybell@rocketmail.com>
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SEE ALSO

78       vzt2vcd(1) lxt2vcd(1) vcd2lxt2(1) gtkwave(1)
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82Anthony Bybell                      3.1.21                          VCD2VZT(1)
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