https://github.com/sajalkmr/endlos
EndlOS - A simple GUI OS
https://github.com/sajalkmr/endlos
operating-system os
Last synced: 9 months ago
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EndlOS - A simple GUI OS
- Host: GitHub
- URL: https://github.com/sajalkmr/endlos
- Owner: sajalkmr
- License: mit
- Created: 2024-04-12T16:23:43.000Z (almost 2 years ago)
- Default Branch: main
- Last Pushed: 2024-10-30T19:08:53.000Z (over 1 year ago)
- Last Synced: 2024-10-30T20:17:20.277Z (over 1 year ago)
- Topics: operating-system, os
- Language: C
- Homepage:
- Size: 263 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# EndlOS - A Simple Operating System from Scratch
EndlOS is a minimalist operating system written in C and Assembly that implements basic OS functionality including graphics, window management, input handling, and task scheduling.
## Features
- **Custom Bootloader**: Written in Assembly to initialize the system and switch to protected mode.
- **Graphics System**:
- Basic pixel drawing and shape rendering.
- Custom font rendering.
- Double buffering for smooth graphics.
- **Window Management**:
- Movable windows.
- Window controls (close button).
- Taskbar.
- **Input Handling**:
- Mouse support with a custom cursor.
- Keyboard input.
- Event system.
- **Task Management**:
- Simple task scheduler.
- Priority-based execution.
- Multiple concurrent tasks.
## Prerequisites
To build and run EndlOS, you'll need:
- NASM (Netwide Assembler)
- GCC (with 32-bit support)
- LD (GNU Linker)
- QEMU (for emulation)
- Make
### Ubuntu/Debian Setup
```
sudo apt-get update
sudo apt-get install nasm gcc-multilib qemu-system-x86 make
```
### Windows Setup
- Install NASM
- Install MinGW (ensure you get the 32-bit version)
- Install QEMU
- Add all executables to your system PATH
### Building
- The project uses a simple Makefile for building. The build process:
- Assembles the bootloader
- Compiles the kernel
- Links everything together
- Creates the final disk image
```
all: bootloader
bootloader:
nasm boot/boot.asm -f bin -o boot/bin/boot.bin
nasm boot/kernel_entry.asm -f elf -o boot/bin/kernel_entry.bin
gcc -m32 -ffreestanding -c boot/final.c -o boot/bin/kernel.o
ld -m elf_i386 -o boot/bin/kernel.img -Ttext 0x1000 boot/bin/kernel_entry.bin boot/bin/kernel.o
objcopy -O binary -j .text boot/bin/kernel.img boot/bin/kernel.bin
cat boot/bin/boot.bin boot/bin/kernel.bin > os.img
```
### To build:
```
make
```
### Running
- To run in QEMU
```
make run
```
### Project Structure
```
boot/
├── boot.asm # Bootloader implementation
├── kernel_entry.asm # Kernel entry point
├── main.c # Main kernel code
├── graphics.c # Graphics implementation
├── input.c # Input handling
├── task.c # Task scheduler
├── graphics_elements.c # UI elements
├── font.c # Font definitions
└── graphics.h # Graphics declarations
```