More info in README.md

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Robbe Van Herck 2020-01-09 12:21:21 +01:00
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My attempt at making a bootloader and kernel.
## How to use
To compile, you need:
- `i686-elf-gcc` for cross-compiling the kernel
- A system `gcc` for compiling the host-helpers
- `nasm` for compiling the bootloader
- `qemu-system-i386` for emulating (`qemu-system-x86_64` will probably work too, but that is not directly supported)
If you run `make bin`, it will generate `target/boot.bin`, this is a binary file layed out as described in [the docs](docs/bootloader.md). To burn it on a USB drive, simply `dd if=target/boot.bin of=/dev/sdb` and the drive is bootable and contains an SFS filesystem with the files in `filesystem/`.
## Bootloader
The bootloader is self-written, based on articles on [the OSDev wiki](https://wiki.osdev.org/). It's a single stage, ELF-loading bootloader in the most basic way possible.
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- [x] Interrupt handling
- [x] Keyboard input
- [ ] Filesystem interaction
- [ ] Show files in directory
- [ ] Read files in directory
- [ ] Write files in directory
- [ ] Exception handling
- [ ] Tests
- [ ] Running executables from filesystem
- [ ] Better memory management
As a test, I've implemented day 1 of [advent of code](https://adventofcode.com/) on the [AoC branch](https://github.com/Robbe7730/RoBoot/tree/AoC).