Show HN: OSle – A 510 bytes OS in x86 assembly

Summary

A tiny and mighty boot sector OS. osle-demo.mov 👀 Overview OSle is a real-mode OS that fits in a boot sector. It's written in x86 assembly and, despite its tiny size (only 510 bytes), it packs essential features like: Shell : Run commands and builtins. : Run commands and builtins. File System : Read, write, and find files on the system. : Read, write, and find files on the system. Process Management : Cooperatively spawn child processes. : Cooperatively spawn child processes. Userland Software: Comes with pre-built software and an SDK to write your own. Check out the online demo to see it in action! 📚 Creating your first OSle program OSle includes a tiny Software Development Kit (SDK) that includes definitions and a toolchain to create your own OSle programs. Follow the step-by-step tutorial to write your first program! 🛠️ Development To develop OSle and OSle programs you will need the following tools: Installation instructions macOS Install dependencies using Homebrew: brew install nasm brew install bochs Linux Install dependencies using your local package manager, e.g., on Debian: apt install nasm bochs Build and Run OSle locally These recipes will compile OSle and use the SDK to compile and bundle all the pre-built programs. Using start will also run bochs right away. # build and run osle on bochs make start # or # build osle make osle # use QEMU to run it qemu-system-i386 -fda osle.img Build and Run your OSle program # ensure you have a working OSle image at osle.img make osle # compile your source to generate my_file.bin sdk/build my_file.s # bundle my_file.bin into the osle.img image sdk/pack my_file.bin # run it! qemu-system-i386 -fda osle.img Use OSle on a Real Device Write the built image to a device using dd : Warning The following action can damage your hardware. We take no responsibility for any damage OSle might cause. # generate an OSle image at osle.img make osle # write it on a device sudo dd if=osle.img of=/dev/YOUR_DEVICE bs=512 count=1 🤝 Contribut...