I have completed the rewiring of the first register. I chose the instruction register only because it lives on the same side of the construction as the clock module. I tested the new IR and it works flawlessly. I haven't yet wired in the data bus or clock signal properly, but for now it is looking pretty good.
And for reference, the current (new) layout is below:
Tomorrow I plan on connecting the data bus and adding some pull-down resistors and indicator LEDs. You may notice I have 10 lines in the data bus - I am planning on using one for the clock and one for the inverted clock signal. That should make routing the clock signal a bit nicer. After wiring up the bus, I will then re-do the A and B registers and (finally) start on the ALU.
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