User guide

17-19
VCD+ (vpd) File Generation
Source Statement System Tasks
• $vcdplustraceon
• $vcdplustraceoff
Note:
For VCS you also must supply the -line option when creating
the simulator executable.
$vcdplustraceon
The $vcdplustraceon task turns on line tracing. Line trace
information is saved in the VCD+ file.
Syntax:
$vcdplustraceon (<level>,<scope>*);
where
level specifies the number of hierarchy scope levels to descend to
record line tracing (a zero value records all line tracing to the end of
the hierarchy; default is 1 level).
scope specifies the name of the scope in which to record line tracing
(default is 1 level).
* indicates that argument can have a list of more than one value (for
scopes).
$vcdplustraceoff
The $vcdplustraceoff task turns off line tracing.
Syntax:
$vcdplustraceoff (<level>,<scope>*);