Sorry for the long break! Since the last log, I've designed most of the CPU on a logic gate level, and I'm now working on converting that into actual resistor-transistor logic on circuit boards. In fact, I've already completed the board design for one of the most important components of the computer: the register. Using 12 D latches, 12 open collector IMPLIES gates, and an AND gate, I've made a register with inputs for output enable, write enable, clock, and reset. To demonstrate the functions of this card, I've made this video: