How to Model/connect Components with Bus Interfaces with Subset of Sgnals?

[ToddThomson]

Using a bus interface to specify signal properties of a process can provide benefits, but how do you connect components which have a subset of common signals? I'm thinking of a component that has an 8 bit input bus that connects to a 32 bit address bus.

[kenkendk]

Right now you have to have an intermediate process that just forwards the relevant bits, using some and/or bit fiddling. I have written some ideas in issue #11 for how to support it.