Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

vcd2lxt2(1) [debian man page]

VCD2LXT2(1)							Filetype Conversion						       VCD2LXT2(1)

NAME
vcd2lxt2 - Converts VCD files to LXT2 files SYNTAX
vcd2lxt2 [option]... [VCDFILE] [LXTFILE] DESCRIPTION
Converts VCD files to LXT2 files. OPTIONS
-v,--vcdname <filename> Specify VCD input filename. -l,--lxtname <filename> Specify LXT2 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 timsteps. -b,--break <value> Specify break size (default = 0 = off). When the break size is exceeded, the LXT2 dumper will dump all state information at the next convenient granule plus dictionary boundary. -p,--partialmode <mode> Specify partial zip mode 0 = monolithic, 1 = separation. Using a value of 1 expands LXT2 filesize but provides fast access for very large traces. Note that the default mode is neither monolithic nor separation: partial zip is disabled. -c,--checkpoint <mode> Specify checkpoint mode. 0 is on which is default, and 1 is off. This is disabled when the break size is active. -h,--help Show help screen. EXAMPLES Note that you should specify dumpfile.vcd directly or use "-" for stdin. vcd2lxt dumpfile.vcd dumpfile.lxt --depth 9 --break 1073741824 This sets the compression level to 9 and sets the break size to 1GB. vcd2lxt dumpfile.vcd dumpfile.lxt --depth 9 --maxgranule 256 Allows more granules per section which allows for greater compression. LIMITATIONS
vcd2lxt2 does not store glitches as these are coalesced together into one value change during the writing of the LXT2 file. AUTHORS
Anthony Bybell <bybell@rocketmail.com> SEE ALSO
lxt2vcd(1) vcd2lxt2(1) gtkwave(1) Anthony Bybell 1.3.42 VCD2LXT2(1)

Check Out this Related Man Page

VCD2LXT(1)							Filetype Conversion							VCD2LXT(1)

NAME
vcd2lxt - Converts VCD files to interlaced or linear LXT files SYNTAX
vcd2lxt [VCDFILE] [LXTFILE] [option]... DESCRIPTION
Converts VCD files to interlaced or linear LXT files. Noncompressed interlaced files will provide the fastest access, linear files will provide the slowest yet have the greatest compression ratios. OPTIONS
-stats Prints out statistics on all nets in VCD file in addition to performing the conversion. -clockpack Apply two-way subtraction algorithm in order to identify nets whose value changes by a constant XOR or whose value increases/decreases by a constant amount per constant unit of time. This option can reduce dumpfile size dramatically as value changes can be represented by an equation rather than explicitly as a triple of time, net, and value. -chgpack Emit data to file after being filtered through zlib (gzip). -linear Write out LXT in "linear" format with no backpointers. These are re-generated during initialization in gtkwave. Additionally, use libbz2 (bzip2) as the compression filter. -dictpack <size> Store value changes greater than or equal to size bits as an index into a dictionary. Experimentation shows that a value of 18 is optimal for most cases. EXAMPLES
Note that you should specify dumpfile.vcd directly or use "-" for stdin. vcd2lxt dumpfile.vcd dumpfile.lxt -clockpack -chgpack -dictpack 18 This turns on clock packing, zlib compression, and enables the dictionary encoding. Note that using no options writes out a normal LXT file. vcd2lxt dumpfile.vcd dumpfile.lxt -clockpack -linear -dictpack 18 Uses linear mode for even smaller files. AUTHORS
Anthony Bybell <bybell@rocketmail.com> SEE ALSO
lxt2vcd(1) vcd2lxt2(1) gtkwave(1) Anthony Bybell 1.3.34 VCD2LXT(1)
Man Page

Featured Tech Videos