🏗️ 8-Bit Computer logisim modules

Status: Archived

This repository contains my original Logisim-based exploration of computer architecture. While the complete computer was not finished, it includes several independently developed modules such as RAM, Programmable ROM, address decoders, ALU, registers.

_{⚙️ System Integration - Registers, Memory, ALU, Program Counter and Display Connected (Performing Addition [A] ← [A] + [B])}

🎯My Approach:

• Before simulation, each module is designed conceptually using hand-drawn block diagrams and written reasoning to validate the logic flow through mental simulation and small example cases.
• The block diagram is then refined into a rough structural, gate-level representation before being implemented, debugged, and rigorously tested in digital logic simulators such as Logisim Evolution and Falstad.
• Where possible, I explore multiple design approaches to achieve the same functionality, comparing behavior, complexity, and design trade-offs before finalizing an implementation.

⚙️ Implementation Stack

✅ Modules Validated

• Clock Module
• Registers
• Bus System
• ALU
• RAM
• Address Decode Logic
• Manually Programmable RAM
• Programmable_RAM_Stored Program Execution
• Program Counter
• Programmable ROM - Hex Display
• Programmable ROM - Decimal Display
• System Integration
• Stored Micro-Program Control

_{💾 Registers & Bus System}

📂 Project Structure

Each module will have its own folder containing:

• A dedicated README.md explaining design, features, and usage
• Images of schematics, simulations, and hardware builds

📜 License

• Source code, HDL, and Logisim circuit files are licensed under the MIT License.
• Documentation, diagrams, images, and PDFs are licensed under Creative Commons Attribution 4.0 (CC BY 4.0).