SM83 CPU Design

The SM83 CPU is the CPU found on the Nintendo Game Boy and Game Boy Color. The goal of this project is to reverse-engineer the SM83 CPU in Verilog to execute binaries in the SM83 Instruction Set Architecture (ISA). This project is a side project that I am working on to learn more about Computer Architecture and design.

Figure 1 shows the SM83 ISA that is being used to reverse-engineer the CPU.

Figure 1: SM83 ISA

https://gbdev.io/gb-opcodes/optables/

The SM83 is a CISC CPU. For my implementation, a Finite State Machine (FSM) will be implemented in Verilog for the Control Unit to handle the multi-cycle operations. The Control Unit will consist of sequential logic that will utilize the combinational logic of the CPU decoder.
Check back soon for more updates!