- Play your Original Xbox the way Bill Gates truly intended with DoomBIOS.
- This is a 256kB bios image that replaces the OG Xbox BIOS to do one thing. Play DOOM.
- 100% opensource with no copyright code.
dooom.mp4
- Fix conexant video encoder issues
- Fix fatx writes? Seems to work on xemu but not hw
- Test Xcalibur, Focus alot more
- Support locked Xbox hard drives
- You need to have your xbox harddrive in an unlocked state (FIXME!)
- Download the Shareware version.
- Place at
E:/doom/doom1.wad. - Flash bios to your modchip of choice and run.
sudo apt install git build-essential clang nasm cmake python3 python3-pip git
pip install objutils lz4 pyelftools
git clone --recursive https://github.com/Ryzee119/XboxDoomBIOS.git
cd XboxDoomBIOS
mkdir build && cd build
cmake ..
cmake --build .
This creates a 256kB binary that you use as an Original Xbox BIOS image.
Although we run doom, there's alot of boilerplate to make this work. The following are features I think are neat
- Uses FreeRTOS kernel for multithreading support
- Custom ATA/ATAPI driver with full DMA support up to UDMA6 (auto negotiated speeds)
- Seemlessly read/write files on FAT16,FAT32,exFAT and FATX filesystems using standard c library calls (fopen etc)
- ISO9660 support for reading DVD roms
- USB Mass Storage support
- PCM audio driver from nxdk
- Compresses the bios at compile time, and decompresses to RAM at run time using LZ4 for significant ROM savings.
- Uses the visor exploit which runs on any xbox version
- Comprehensive C library included using picolibc.
- Some code is based on Cromwell which is licensed under GPL2.
- Code written by me is licensed under either MIT of CC0-1.0. See respective source files.
- I use a bunch of external libraries. See below for licensing.
- PureDOOM https://github.com/Daivuk/PureDOOM
- Arith64 https://github.com/glitchub/arith64
- FATFS http://elm-chan.org/fsw/ff/
- FreeRTOS https://github.com/freertos
- lib9660 https://github.com/erincandescent/lib9660
- FATX https://github.com/mborgerson/fatx
- LZ4 https://github.com/lz4/lz4
- Midiplay https://github.com/fawtytoo/Midiplay/tree/main
- Picolibc https://github.com/picolibc/picolibc
- TinyUSB https://github.com/hathach/tinyusb
- Xinput https://github.com/Ryzee119/tusb_xinput