User guide

6-24
VPD and EVCD File Generation
$vcdplusglitchoff
The $vcdplusglitchoff task turns off checking for zero
delay glitches. Glitch detection is automatically turned off when VCS
executes $vcdplusdeltacycleoff unless you have previously
used $vcdplusglitchon/off. Once you use
$vcdplusglitchon/off, DVE allows you explicit control of glitch
detection.
Syntax:
$vcdplusglitchoff;
$vcdplusevent
The $vcdplusevent task allows you to record a unique event for a
signal at the current simulation time unit. These events can be
displayed in the Wave Window, Logic Browser, and Register Window.
There can be a maximum of 244 unique events, plus the predefined
"glitch" event, which the PLI automatically generates, and a "Too
many events" event, which is the default name for all unique events
beyond the allowed 244.
Syntax:
$vcdplusevent (<signal>, "<event_name>",
"<severity><shape>");
Here:
signal
Any valid signal name.