A minimalist, educational kernel implementation written in C and Assembly. This project demonstrates low-level system programming concepts including bootloader development, interrupt handling, and basic shell functionality.
- Custom Bootloader: Written in x86 Assembly, handles the transition from 16-bit real mode to 32-bit protected mode
- Interrupt Handling: Implements IDT (Interrupt Descriptor Table) and handles keyboard interrupts
- VGA Text Mode Interface: Direct manipulation of video memory for text display
- Interactive Shell: Supports basic commands and user input
- Hardware Cursor Control: Real-time cursor position updates using VGA registers
help- Display available commandshello- Display a greeting messageclear- Clear the screenreboot- Soft reboot the systemcreed- Displays my credentials
- Architecture: x86 (32-bit)
- Language: C and x86 Assembly
- Build System: Make
- Bootloader Size: 512 bytes (single sector)
- Memory Model: Protected Mode
- Text Display: 80x25 VGA text mode
- NASM (Netwide Assembler)
- GCC (GNU Compiler Collection)
- QEMU (for emulation)
- Make
- Bootloader: Custom implementation that sets up the system, enables A20 line, and loads the kernel
- Interrupt System: Configures PIC (Programmable Interrupt Controller) and handles keyboard interrupts
- Memory Management: Basic memory layout with stack initialization
- I/O Handling: Direct port I/O for hardware interaction
- Text Display: Direct VGA memory manipulation for text output
This project demonstrates understanding of:
- Operating System fundamentals
- x86 architecture and Assembly programming
- Interrupt handling and hardware interaction
- Memory management and segmentation
- Boot process and system initialization
- Real-time hardware control
- Memory management system
- File system implementation
- Process scheduling
- More shell commands and utilities
- User space program support
[Creed Warf]
Note: This is an educational project demonstrating OS development concepts. Not intended for production use.