Well, I originally designed this to be a CPU for a computer. I quickly realized however my crucial mistake: I was building everything to be I/O based, instead of program based. Instead of deleting this whole thing, I decided to just turn it into a calculator. As far as I've tested, it works flawlessly. If you find a bug, just post it as a comment. Anyway, months of work went into this thing, so Enjoy!

Additional Notes

Instructions for use:
1. Using the binary input panel (Green on first floor), hit the buttons until the desired number shows up on the buffer display (Cyan to the right). If you screw up, you can hit the clear button at the far left on the input panel
2. Once you get the number you want, hit 'Enter to System', and repeat for the second number.
3. If you haven't already, turn on the lever for the desired function over on the wall to the left
4. The output will appear on the yellow panel on the right
5. Once you are done, turn on the reset lever until the output disappears off the yellow panel

The Memory should be pretty straight forward. If anyone has any questions, feel free to ask them in the comments.