User guide

7-23
VCD and VPD File Utilities
The vcsplit Utility
The vcsplit utility generates a VCD, EVCD, or VPD file that contains
a selected subset of value changes found in a given input VCD,
EVCD, or VPD file (the output file has the same type as the input file).
You can select the scopes/signals to be included in the generated
file either via a command line argument, or a separate "include" file.
The vcsplit Utility Syntax
The vcsplit utility has the following syntax:
vcsplit [-o output_file] [-scope selected_scope_or_signal]
[-include include_file] [-min min_time] [-max max_time]
[-level n] [-ignore ignore_file] input_file [-v] [-h]
Here:
-o output_file
Specifies the name of the new VCD/EVCD/VPD file to be
generated. If output_file is not specified, vcsplit creates the
file with the default name vcsplit.vcd.
-scope selected_scope_or_signal
Specifies a signal or scope whose value changes are to be
included in the output file. If a scope name is given, then all signals
and sub-scopes in that scope are included.
-include include_file
Specifies the name of an include file that contains a list of signals/
scopes whose value changes are to be included in the output file.