I’ve managed to fix the bus errors by giving them a label, but have had to do a hack in that I cannot have a single bus containing address lines and data lines. So for example, the address bus is as below, and then I have a similar one for databus.
Is it possible to have a single bus for data and address line and use the labeling as D[0…7], A[0-12]
(That doesn’t work so maybe I just have the formatting incorrect?)