User guide

2-19
Starting VirSim
StartTime/End Time
Allows loading a time range from within a file. The File Range fields
list the file’s time range. The Load Range fields allow you to specify
the range that you want to load. Select the button next to the fields
that you want to specify.
Type
Allows selection of the type of file to open from an option menu.
Note:
When you open a VCD file, it is first translated to a VCD+ file,
which then is opened.
Designator
A unique two character designator for the history file that is used
throughout VirSim. The file designator allows you to differentiate
signals with the same hierarchical name but from different simulation
history files.
Use Sources
(Verilog only) When enabled, Use Sources allows VirSim to use
Verilog sources for VCD+ history files that are opened in post
simulation. Use Sources is enabled in order to associate loaded
Verilog source data with the file that is opened. Sources may be
required by the Source Window or Logic Browser. Users may want
to disable Use Sources if the sources loaded do not apply to the
history file opened.
Use Sources is enabled by default for VCD+ files. Use Sources is not
sensitive for EPIC files because the VirSim EPIC interface does not
allow sources. For VHDL VCD+ files, the setting of the Use Sources
button is ignored.