User guide

7-35
VCD and VPD File Utilities
-q
Specifies quiet mode, disables the display of most output to the
terminal.
-hier
Specifies that you are merging VPD files for different parts of the
design, instead of the default condition, without this option, which
is merging VPD files from different simulation times.
-v
Specifies verbose mode, enables the display of warning and error
messages.
Restrictions
There are the following restrictions for the vpdmerge utility:
• To read the merged VPD file, DVE must have the same or later
version than that of the vpdmerge utility.
• VCS must have written the input VPD files on the same platform
as the vpdmerge utility.
• The input VPD files cannot contain delta cycle data (different
values for a signal during the same time step).
• The input VPD files cannot contain named events.
• The merged line stepping data does not always accurately replay
scope changes within a time step.
• If you are merging VPD files from different parts of the design,
using the -hier option, the VPD files must be for distinctly
different parts of the design, they cannot contain information for
the same scope.