Modules: Hierarchy

Instantiate a Submodule by Name

Instantiate a given submodule and wire its ports to the top-level ports by name.

Instantiate Multiple Copies of a Submodule

Instantiate four copies of a 1-bit submodule by hand to build a 4-bit bitwise circuit.

Connecting Submodules with an Intermediate Wire

Chain two submodule instances together through a hand-declared intermediate wire.

4-bit Ripple-Carry Adder from Full Adders

Build a 4-bit ripple-carry adder by instantiating four full-adder submodules and chaining their carry signals.

Combining Two Different Submodule Types

Combine instances of two different submodule types (AND gates and an OR gate) to build an AND-OR circuit.