@Override
	public Address getJoinAddress(VariableStorage storage) {
		if (storageToJoin == null) {
			return null;
		}
		Integer off = storageToJoin.get(storage);
		if (off == null) {
			return null;
		}
		AddressSpace spc = AddressSpace.VARIABLE_SPACE;
		return spc.getAddress(off.longValue());
	}
Varnodes and PcodeOps in a coherent graph structure
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/PcodeSyntaxTree.java