CPU-Simulator

A C++ program that simulates a basic CPU with registers, memory and simple instructions (load, add, sub, store, print).

💡 Why this project?

Every electronic device runs on a CPU. Understanding how a processor executes instructions at the lowest level is core knowledge for Computer Architecture — a subject every Electrical Engineering student will encounter in their degree!

✨ Features

• 4 general-purpose registers (R0, R1, R2, R3)
• 16 memory slots (addresses 0–15)
• Supported instructions:
  • LOAD — load a value directly into a register
  • ADD — add two registers, store result
  • SUB — subtract two registers, store result
  • STORE — save a register value to memory
  • PRINT — display a register's current value
  • VIEW — display all registers and memory at once
• Interactive menu-driven interface
• Loops until the CPU is halted

🔧 Challenge Extensions

•	Add MUL (multiply) and DIV (divide) instructions
•	Add a JUMP instruction for simple loops
•	Add an assembler — let the user type “ADD R0 R1 R2” as text
•	Simulate a fetch-decode-execute cycle
•	Add a program counter (PC) register