This emulator is for a binary MIX machine. Each 'byte' is 6 bits in size. The A and X registers, and the main memory, are all 31 bits wide (5 bytes plus a sign bit). The sign bit is 1 for negative, 0 for positive. These are stored in the emulator as u32. The I1, I2, ..., I6 and J registers are 13 bits wide, and are stored as u16.

• Every action you can perform on the MixMachine returns a Result type.
• For another Mix simulator, see https://danielbarter.github.io/mix.html

• Refactor to remove the Result< , > wrapper on some of the internal calls that never fail. (And possibly on ones where failure is an error of the mix machine).
• Add peripherals.
• Refactor code s.t. the register branches are less biolerplate.
• Refactor the 'helper functions' to convert from 5 byte to 2 byte registers etc. into separate helper module.
• Add print functionality for the registers? As a helper function?