User guide

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VPD and EVCD File Generation
EVCD File Generation
You can create an EVCD file for the entire design in the following
ways:
• Using the runtime option -dump_evcd
• Using system tasks
Using the runtime option -dump_evcd
-dump_evcd writes an EVCD file for the instance/s specified as
arguments to this option. You can specify more than one instance
separated by “:” as shown below:
% executable -dump_evcd /top/dev1/intr1:/top/dev1/intr2
The above example dumps the port information of the modules intr1
and intr2. .
Use the compile time option -enableEvcd, to use -dump_evcd
during runtime.
VCS, by default generates the EVCD file in the current working
directory as “output.evcd” suffixed with the process id. However, you
can overwrite this default file name using the runtime option
-dump_evcd_output filename.