isPosedge static method
- LogicValue previousValue,
- LogicValue newValue,
- {bool ignoreInvalid = false}
Returns true iff the transition represents a positive edge.
Only returns true from 0 -> 1. If previousValue
or newValue
is
invalid, an Exception will be thrown, unless ignoreInvalid
is set
to true
.
Implementation
static bool isPosedge(LogicValue previousValue, LogicValue newValue,
{bool ignoreInvalid = false}) {
_assertSingleBit(previousValue);
_assertSingleBit(newValue);
if (!ignoreInvalid && (!previousValue.isValid | !newValue.isValid)) {
throw Exception(
'Edge detection on invalid value from $previousValue to $newValue.');
}
return previousValue == LogicValue.zero && newValue == LogicValue.one;
}