8-Bit CPU

Done
An 8-bit CPU based on the SAP-1 architecture and Ben Eater’s breadboard computer

Clock

Clock module with variable frequency and manual mode

Program Counter

4-bit program counter with set, reset, output, and count control signals

Memory Address Register

4-bit register, controlling access to RAM

Registers

3 8-bit registers, for storing, moving, and operating on data

Random Access Memory

16 8-bit memory locations to read and write data to

Arithmetic Logic Unit

Add or subtract 2 8-bit numbers

Control

The decision center of the CPU

Output

A 7-segment display

Bus

8-bit bus and control signals connecting all the modules