Working on the XY register. This is the register with the most control signals and features. Separate hi, lo byte, and word increment and decrement. Hi or lo byte in from or out to databus. Word in from or out to Address bus (Address bus is used for 16 bit register to register transfers). The address bus side of in and out is finished and tested. Need to wire data bus in and out and lo byte to hi byte up down logic. I've already used over 40' of wire just for this one register. I'm going to need a lot more. The yellow loops are control signals tied hi or lo for testing. Dip switches are acting as the address bus.