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Abdessamad Derraz
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38 lines
1.6 KiB
YAML
38 lines
1.6 KiB
YAML
emulator: Beetle Lynx (Mednafen Lynx)
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type: libretro
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core_classification: community_fork
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source: "https://github.com/libretro/beetle-lynx-libretro"
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upstream: "https://mednafen.github.io/"
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profiled_date: "2026-03-24"
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source_commit: "fcdefcfb3c11d6d2e71be076a5d3df2e88ab73ed"
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core_version: "v1.24.0"
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display_name: "Atari - Lynx (Beetle Lynx)"
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cores: [mednafen_lynx]
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systems: [atari-lynx]
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verification: existence
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notes: >
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Community fork of Mednafen's Lynx module (itself based on Handy by
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K. Wilkins) for libretro. Loads lynxboot.img from the system directory
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at game load time (libretro.cpp:191). CRom constructor reads exactly
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512 bytes (rom.cpp:50-78). If the file is missing or undersized, the
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ROM array is filled with 0x88 (DEFAULT_ROM_CONTENTS) and the core
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continues without error, but games will not boot without the real boot
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ROM. No hash validation is performed on the BIOS at load time.
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The cart database in cart.cpp includes the BIOS CRC32 0x0d973c9d for
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identification purposes, not validation.
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Upstream Mednafen throws an exception if the BIOS is missing or
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undersized, while the libretro port silently degrades. Upstream supports
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custom palette loading (lynx.pal), but the libretro port does not.
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files:
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- name: "lynxboot.img"
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description: "Atari Lynx boot ROM"
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region: [world]
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required: true
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min_size: 512
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validation: [size]
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crc32: "0d973c9d"
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source_ref: "libretro.cpp:191, mednafen/lynx/rom.cpp:50-78, mednafen/lynx/cart.cpp:67"
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note: "512-byte boot ROM. Core silently degrades without it but games will not run."
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