17-20
VCD+ (vpd) File Generation
where
level specifies the number of hierarchy scope levels to desend to
stop recording line tracing (a zero value stops the recording of all line
tracing to the end of the hierarchy; default is 1 level).
System Tasks for Capturing Delta Cycle Information
The following VCD+ system tasks are used to capture and display
Delta Cycle information in the Waveform Window.
• $vcdplusdeltacycleon
• $vcdplusdeltacycleoff
$vcdplusdeltacycleon
This command enables reporting of Delta Cycle information from the
simulator CLI or the Verilog source code. This must be followed by
the appropriate $vcdpluson/$vcdplusoff commands.
Glitch detection is automatically turned on when
$vcdplusdeltacycleon is executed unless you have previously used
$vcdplusglitchon/off. Once you have used
$vcdplusglitchon/off, VirSim allows you explicit control of glitch
detection.
Syntax:
$vcdplusdeltacycleon;
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