Files
libretro/emulators/beetle_lynx.yml
Abdessamad Derraz e13e8734b9 chore: standardize notes: to note: in file entries
240 file-level entries used notes: instead of the canonical note:
field. verify.py and cross_reference.py only read note:, so these
were silently ignored.
2026-03-29 10:02:20 +02:00

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YAML

emulator: Beetle Lynx (Mednafen Lynx)
type: libretro
core_classification: community_fork
source: "https://github.com/libretro/beetle-lynx-libretro"
upstream: "https://mednafen.github.io/"
profiled_date: "2026-03-24"
core_version: "v1.24.0"
display_name: "Atari - Lynx (Beetle Lynx)"
cores: [mednafen_lynx]
systems: [atari-lynx]
verification: existence
notes: >
Community fork of Mednafen's Lynx module (itself based on Handy by
K. Wilkins) for libretro. Loads lynxboot.img from the system directory
at game load time (libretro.cpp:191). CRom constructor reads exactly
512 bytes (rom.cpp:50-78). If the file is missing or undersized, the
ROM array is filled with 0x88 (DEFAULT_ROM_CONTENTS) and the core
continues without error, but games will not boot without the real boot
ROM. No hash validation is performed on the BIOS at load time.
The cart database in cart.cpp includes the BIOS CRC32 0x0d973c9d for
identification purposes, not validation.
Upstream Mednafen throws an exception if the BIOS is missing or
undersized; the libretro port silently degrades. Upstream supports
custom palette loading (lynx.pal); the libretro port does not.
files:
- name: "lynxboot.img"
description: "Atari Lynx boot ROM"
region: "World"
required: true
size: 512
crc32: "0d973c9d"
source_ref: "libretro.cpp:191, rom.cpp:50-78, cart.cpp:67"
note: "512-byte boot ROM. Core silently degrades without it but games will not run."