Files
libretro/emulators/b2.yml
Abdessamad Derraz 86dbdf28e5 feat: core profiles, data_dirs buildbot, cross_ref fix
profiles: amiberry (new), amiarcadia, atari800, azahar, b2,
bk, blastem, bluemsx, freeintv updated with source refs,
upstream field, mode field, data_directories.

_data_dirs.yml: buildbot source for retroarch platforms,
strip_components for nested ZIPs, freeintv-overlays fixed.

cross_reference.py: data_directories-aware gap analysis,
suppresses false gaps when emulator+platform share refs.

refresh_data_dirs.py: ZIP strip_components support,
for_platforms filter, ETag freshness for buildbot.

scraper: bluemsx single ref, freeintv overlays injection.
generate_pack.py: warning on missing data directory cache.
2026-03-18 21:20:02 +01:00

46 lines
1.7 KiB
YAML

emulator: b2
type: standalone + libretro
source: "https://github.com/zoltanvb/b2-libretro"
upstream: "https://github.com/tom-seddon/b2"
profiled_date: "2026-03-18"
core_version: "v0.1"
display_name: "Acorn - BBC Micro (b2)"
cores: [b2]
systems:
- bbc-micro-b
- bbc-micro-bplus
- bbc-master-128
- bbc-master-compact
notes: |
b2 is a BBC Micro emulator by Tom Seddon. Libretro port by Zoltan Balogh.
ref: zoltanvb/b2-libretro, tom-seddon/b2
Standalone: loads ROMs from etc/roms/ via GetAssetPath().
ref: tom-seddon/b2/src/b2/roms.cpp:9-10
Libretro port (experimental): GetAssetPath stubbed in
src/libretro/adapters.cpp to return relative paths. LoadFile also
stubbed (returns false). ROM loading mechanism unclear — the 256 ROM
files are in the repo but the stub suggests they may not load at runtime.
is_experimental=true in .info.
ref: zoltanvb/b2-libretro/src/libretro/adapters.cpp
256 ROM files in etc/roms/ cover: BBC Model B (OS 1.20, BASIC II),
Model B+ (B+MOS), Master 128 (MOS 3.20, 3.50), Master Compact
(MOS 5.00, 5.10, I5.10C/Olivetti), parasite processors (65C102 TUBE,
6502 TUBE), disc interfaces (Acorn 1770, Watford, Opus).
All ROMs ship with both standalone and libretro repos.
No external BIOS files needed by the user for either mode.
files: []
# 256 ROMs bundled in repo etc/roms/ — not loaded from system dir
# standalone loads via GetAssetPath("roms", path) -> etc/roms/
# libretro port has LoadFile stubbed — ROM loading mechanism TBD
# is_experimental=true, core may not fully function
# closed-source analysis note: core binary on buildbot contains
# "Retro ROM DIRECTORY" and "system_dir" strings but LoadFile stub
# returns false. needs further investigation when port matures.