ROHD HCL comes with a Find. The detailed API docs are available here.
A Find will search for first/nth occurrence of one(1)/zero(0) within a given Logic bus.
The underlying implementation uses a Count to count 1's or 0's whenever a Logic n value
is passed within the constructor argument.
It takes a Binary Logic bus and finds the position of any one or zero within the bus. A Find function without any constructor arguments will find the first one.
That is to say, By default a Find will go for finding the first occurrence when no n is passed. In addition, with countOne which is set as true by default to
search only one (1). Both boolean countOne and Logic n are optional. Only Logic bus is mandatory argument.
This has an output pin named as find, for the index position on the occurrence searched (1s or 0s) taken from the LSB (Least significant bit).
To find the first occurrence just pass in the bus without mentioning any value for n.
To find the first occurrence just pass in bus without mentioning any value for n. In addition to finding first occurrence of One (1), set the argument countOne to true.
By default countOne is already set to true.
To find the first occurrence just pass in bus without mentioning any value for n. In addition to finding first occurrence of Zero (0), set the argument countOne to false.
To find the nth occurrence just pass in bus along with Logic value n passed in as an argument.
To find the nth occurrence just pass in bus along with Logic value n passed in as an argument. In addition to finding occurrence of One (1), set the argument countOne to true.
To find the nth occurrence just pass in bus along with Logic value n passed in as an argument. In addition to finding occurrence of Zero (0), set the argument countOne to false.