17-4
VCD+ (vpd) File Generation
$vcdpluson
The $vcdpluson task begins recording signal value changes of the
specified scope(s) or signals to the VCD+ history file.
Syntax:
$vcdpluson (level,scope*,signal*);
The descriptions of the task arguments is as follows:
level
Specifies the number of hierarchy scope levels to desend to record
signal value changes (a zero value records all scope instances to
the end of the hierarchy; default is all).
scope
Specifies the name of the scope in which to record signal value
changes (default is all).
signal
Specifies the name of the signal in which to record signal value
changes (default is all).
Note: * indicates argument can have a list of more than one value
(for scopes or signals).
Example 1: Record all signal value changes.
$vcdpluson;
Example 2: Record signal value changes for scope
test.risc1.alureg and all levels below.
$vcdpluson(test.risc1.alureg);
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