public VariableStorage[] getPotentialInputRegisterStorage(Program prog) {
		return inputParams.getPotentialRegisterStorage(prog);
	}
Get a list of all input storage locations consisting of a single register 
@param prog is the current Program
@return a VariableStorage ojbect for each register
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/PrototypeModel.java