Cheese Operating System (CheeseOS)

Overview

CheeseOS is a minimalistic operating system built from scratch in Assembly language. It provides basic functionality such as a command prompt, file system simulation, keyboard input handling, and mouse support. CheeseOS is designed for educational purposes to understand the fundamentals of operating system development.

Features

• Bootloader: Loads the kernel from disk and initiates the OS.
• Kernel: Handles system initialization, keyboard and mouse input, command interpretation, and file system operations.
• File System Simulation: Simulates a basic file system structure with support for reading and writing files.
• Command Prompt: Provides a simple command prompt interface for user interaction.
• Mouse Support: Adds basic mouse input handling with a visible cursor.

Installation

To run CheeseOS on a virtual machine, follow these steps:

1. Clone the Repository: Clone the CheeseOS repository to your local machine.

   git clone github.com/CallenDV/CheeseOS

2. Build the Bootloader: Assemble the bootloader code using NASM.

   nasm -f bin bootloader.asm -o bootloader.bin

3. Build the Kernel: Assemble the kernel code using NASM.

   nasm -f bin kernel.asm -o kernel.bin

4. Build the Keyboard Handler: Assemble the keyboard handler code using NASM.

   nasm -f bin keyboard.asm -o keyboard.bin

5. Build the Mouse Handler: Assemble the mouse handler code using NASM.

   nasm -f bin mouse.asm -o mouse.bin

6. Create Disk Image: Create a disk image containing the bootloader, kernel, keyboard, and mouse handlers.

   cat bootloader.bin kernel.bin keyboard.bin mouse.bin > os-image.img

7. Run in Virtual Machine: Create a virtual machine using software like VirtualBox or QEMU and boot the OS image (os-image.img) as the boot disk.

Usage

Once CheeseOS is running, you will be presented with a simple command prompt. Here are some basic commands you can try:

• echo : Echoes the provided message to the screen.

  echo Hello, World!

• read : Reads the content of the specified file from the simulated file system.

  read File1

• write : Writes to the specified file in the simulated file system.

  write File3

• exit: Exits the operating system and shuts down the virtual machine.

Status

Completed

• Basic bootloader and kernel loading
• Command prompt with basic commands
• Keyboard input handling
• Basic file system simulation
• Mouse input handling with a visible cursor

In Progress

• Enhancing file system capabilities
• Expanding command set
• Improving mouse functionality
• Bug fixes and optimizations

Contributing

Contributions to CheeseOS are welcome! If you find any bugs or want to suggest improvements, feel free to open an issue or create a pull request.

License

This project is licensed under the Apache License. See the LICENSE file for details.