User guide

17-5
VCD+ (vpd) File Generation
Example 3: Record two levels of signal value changes: Scope (test)
and one level below.
$vcdpluson(2, test);
$vcdplusoff
The $vcdplusoff task stops recording the signal value changes
for specified scope(s) or signal(s).
Syntax:
$vcdplusoff (level,scope*,signal*);
Example 1: Turn recording off.
$vcdplusoff();
Example 2: Stop recording signal value changes for scope
test.risc1.alu1.
$vcdplusoff(test.risc1.alu1);
Example 3: Stop recording signal value changes for
test.risc1.alu1 and test.risc1.instreg.d1.
$vcdplusoff(test.risc1.alu1, test.risc1.instreg.d1);
Example 4: Stop recording signal value changes for scope
test.risc1.alu1 and 39 levels below. In this example, 40 is a
number large enough to ensure all lower levels are turned off.
$vcdplusoff(40, test.risc1.alu1);