2e21d64a08
- fix urllib.parse.quote import (was urllib.request.quote) - add operator precedence parens in generate_pack dedup check - narrow bare except to specific types in batocera target scraper - cache load_platform_config and build_zip_contents_index results - add selective algorithm support to compute_hashes - atomic write for fetch_large_file (tmp + rename) - add response size limit to base scraper fetch - extract build_target_cores_cache to common.py (dedup verify/pack) - hoist _build_supplemental_index out of per-platform loop - migrate function-attribute caches to module-level dicts - add @abstractmethod to BaseTargetScraper.fetch_targets - remove backward-compat re-exports from common.py - replace em-dashes and unicode arrows with ASCII equivalents - remove decorative section dividers and obvious comments
RetroBIOS
Complete BIOS and firmware packs for Batocera, BizHawk, EmuDeck, Lakka, Recalbox, RetroArch, RetroBat, RetroDECK, RetroPie, and RomM.
7,244 verified files across 387 systems, ready to extract into your emulator's BIOS directory.
Quick Install
Copy one command into your terminal:
# Linux / macOS / Steam Deck
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh
# Windows (PowerShell)
irm https://raw.githubusercontent.com/Abdess/retrobios/main/install.ps1 | iex
# Handheld (SD card mounted on PC)
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --platform retroarch --dest /path/to/sdcard
The script auto-detects your platform, downloads only missing files, and verifies checksums.
Download BIOS packs
Pick your platform, download the ZIP, extract to the BIOS path.
| Platform | BIOS files | Extract to | Download |
|---|---|---|---|
| Batocera | 359 | /userdata/bios/ |
Download |
| BizHawk | 118 | Firmware/ |
Download |
| EmuDeck | 161 | Emulation/bios/ |
Download |
| Lakka | 448 | system/ |
Download |
| Recalbox | 346 | /recalbox/share/bios/ |
Download |
| RetroArch | 448 | system/ |
Download |
| RetroBat | 331 | bios/ |
Download |
| RetroDECK | 2007 | ~/retrodeck/bios/ |
Download |
| RetroPie | 448 | BIOS/ |
Download |
| RomM | 374 | bios/{platform_slug}/ |
Download |
What's included
BIOS, firmware, and system files for consoles from Atari to PlayStation 3. Each file is checked against the emulator's source code to match what the code actually loads at runtime.
- 10 platforms supported with platform-specific verification
- 328 emulators profiled from source (RetroArch cores + standalone)
- 387 systems covered (NES, SNES, PlayStation, Saturn, Dreamcast, ...)
- 7,244 files verified with MD5, SHA1, CRC32 checksums
- 9266 MB total collection size
Supported systems
NES, SNES, Nintendo 64, GameCube, Wii, Game Boy, Game Boy Advance, Nintendo DS, Nintendo 3DS, Switch, PlayStation, PlayStation 2, PlayStation 3, PSP, PS Vita, Mega Drive, Saturn, Dreamcast, Game Gear, Master System, Neo Geo, Atari 2600, Atari 7800, Atari Lynx, Atari ST, MSX, PC Engine, TurboGrafx-16, ColecoVision, Intellivision, Commodore 64, Amiga, ZX Spectrum, Arcade (MAME), and 353+ more.
Full list with per-file details: https://abdess.github.io/retrobios/
Coverage
| Platform | Coverage | Verified | Untested | Missing |
|---|---|---|---|---|
| Batocera | 359/359 (100.0%) | 354 | 5 | 0 |
| BizHawk | 118/118 (100.0%) | 118 | 0 | 0 |
| EmuDeck | 161/161 (100.0%) | 161 | 0 | 0 |
| Lakka | 443/448 (98.9%) | 443 | 0 | 5 |
| Recalbox | 276/346 (79.8%) | 273 | 3 | 70 |
| RetroArch | 443/448 (98.9%) | 443 | 0 | 5 |
| RetroBat | 330/331 (99.7%) | 326 | 4 | 1 |
| RetroDECK | 1958/2007 (97.6%) | 1932 | 26 | 49 |
| RetroPie | 443/448 (98.9%) | 443 | 0 | 5 |
| RomM | 372/374 (99.5%) | 372 | 0 | 2 |
Build your own pack
Clone the repo and generate packs for any platform, emulator, or system:
# Full platform pack
python scripts/generate_pack.py --platform retroarch --output-dir dist/
python scripts/generate_pack.py --platform batocera --output-dir dist/
# Single emulator or system
python scripts/generate_pack.py --emulator dolphin
python scripts/generate_pack.py --system sony-playstation-2
# List available emulators and systems
python scripts/generate_pack.py --list-emulators
python scripts/generate_pack.py --list-systems
# Verify your BIOS collection
python scripts/verify.py --all
python scripts/verify.py --platform batocera
python scripts/verify.py --emulator flycast
python scripts/verify.py --platform retroarch --verbose # emulator ground truth
Only dependency: Python 3 + pyyaml.
Documentation site
The documentation site provides:
- Per-platform pages with file-by-file verification status and hashes
- Per-emulator profiles with source code references for every file
- Per-system pages showing which emulators and platforms cover each console
- Gap analysis identifying missing files and undeclared core requirements
- Cross-reference mapping files across 10 platforms and 328 emulators
How it works
Documentation and metadata can drift from what emulators actually load. To keep packs accurate, each file is checked against the emulator's source code.
- Read emulator source code - trace every file the code loads, its expected hash and size
- Cross-reference with platforms - match against what each platform declares
- Build packs - include baseline files plus what each platform's cores need
- Verify - run platform-native checks and emulator-level validation
Contributors
Contributing
See CONTRIBUTING.md for guidelines.
License
This repository provides BIOS files for personal backup and archival purposes.
Auto-generated on 2026-03-29T21:00:40Z