https://github.com/rezgui/fpos
Free Pascal Operating System (FPOS) is a operating system consists of a minimal kernel built on FreePascal. It contains a Scheme implementation of a hard drive (ATA) driver, keyboard (PS2), serial (8250 UART), FAT32 filesystem and a small real time clock manager. The project was built to experiment with developement of operating system using a high level functional language to study the developement process and the use of Scheme to build a fairly complex system.
https://github.com/rezgui/fpos
freepascal kernel microkernel operating-system os pascal pascal-compiler pascal-language pascal-programming
Last synced: 19 days ago
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Free Pascal Operating System (FPOS) is a operating system consists of a minimal kernel built on FreePascal. It contains a Scheme implementation of a hard drive (ATA) driver, keyboard (PS2), serial (8250 UART), FAT32 filesystem and a small real time clock manager. The project was built to experiment with developement of operating system using a high level functional language to study the developement process and the use of Scheme to build a fairly complex system.
- Host: GitHub
- URL: https://github.com/rezgui/fpos
- Owner: rezgui
- License: gpl-2.0
- Created: 2015-03-13T22:26:31.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2025-06-06T10:38:23.000Z (11 months ago)
- Last Synced: 2025-06-06T11:31:57.065Z (11 months ago)
- Topics: freepascal, kernel, microkernel, operating-system, os, pascal, pascal-compiler, pascal-language, pascal-programming
- Language: Pascal
- Homepage:
- Size: 3.53 MB
- Stars: 88
- Watchers: 12
- Forks: 19
- Open Issues: 18
-
Metadata Files:
- Readme: README.md
- License: COPYING
Awesome Lists containing this project
README
# FPOS - Free Pascal Operating System
Project started in 01-01-2010 and coded with ❤️
# ‼️ Attention :
This project is far from dead, but it requires revision...
A new bootloader will be utilized for execution on 64-bit architecture. Additionally, new functionalities will be implemented:
- An integrated file system implementation supporting FAT32, NTFS, ext-versions, and much more.
- Multitasking extension for running many subprograms simultaneously.
- Extendable hardware driver slots for multitasking capability.
- An API for accessing all public kernel functionalities.
- A graphical user interface (possibly as a separate threading application).
Many modern features will follow, but please be patient...
## Introduction :
FPOS is a operating system consists of a minimal kernel built on FreePascal. It contains a Scheme implementation of a hard drive (ATA) driver, keyboard (PS2), serial (8250 UART), FAT32 filesystem and a small real time clock manager. The project was built to experiment with developement of operating system using a high level functional language to study the developement process and the use of Scheme to build a fairly complex system.
Boot | Shell (CLI) | Command (Help)
:-------------------------:|:-------------------------:|:-------------------------:
| 
| 
🤝 Bugs and help / improvements will be appreciated, please send them to (Yacine REZGUI) yacine.rezgui@gmail.com and (Mario Ray Mahardhika) leledumbo_cool@yahoo.co.id.
## :heavy_check_mark: Implemented :
- [x] GDT, IDT ( no problem... I hope )
- [x] ISR ( currently, only page fault has additional handler )
- [x] IRQ ( no problem... I hope )
- [x] Console ( including simple command processing )
- [x] Keyboard ( try to be US-std, but I don't know the keymap. Just guessing for now )
- [x] Memory Manager ( needs testing )
- [x] Speaker ( just for fun :-) )
- [x] RTC ( seems wrong at PM, also for DayOfWeek )
- [ ] System calls
- [ ] Multitasking
- [ ] Filesystem ( perhaps FAT12 is the most obvious, or should we create one ourselves? )
## 🔧 Fixed :
- Successive Write(Ln) fails due to 103 IOResult
- Some inline assembler and assembler routines are missing register list, causing it to crash randomly (please test)
## 📋 Changed :
- Updated to FPC RTL revision 14499
## ➕ Added :
- Not 📅 planned for now
## 📝 Note :
- Some files are not used due to unusability ( multitasking & filesystem )
# ⚙️ How to compile :
- Make sure you have working FPC installation ( try using latest 2.5.x snapshot if your version fails )
- Copy executables** under tools to a directory listed in your PATH ( or Path )
- Open Command Prompt ( start->run->cmd ), cd to fpos top directory, then type 'make'
## :battery: How to test :
- Adapt **(Qemu or Bochs).bat** to your Qemu / Bochs installation
- On Linux, you must change 'i386-linux-ld' in make.rules to 'ld'
## :heart: Contributing
Contributions, issues and feature requests are welcome!
## :pray: Thanks to
- **[@achief-ws](https://github.com/renderedideas-lab)**
- **[@Sio](https://github.com/SANiK)**
- **[@James T. Sprinkle](https://github.com/the-grue)**
- **[@Steve Jenson](https://github.com/stevej)**
- and Other [here](CONTRIBUTORS.md)
## :link: Other Link
- [Awesome Operating System Stuff](https://github.com/rezgui/AwesomeOS)
## 📓 License
The GPL-2.0 License. Please see [License File](LICENSE.md) for more information.
## 🌳 Treeware
This Operating System is a Treeware. If you use it in production, then we ask that you buy the world a tree to thank us for our work. By contributing to the Treeware forest you’ll be creating employment for local families and restoring wildlife habitats. Read more about Treeware at [treeware.earth](http://treeware.earth)