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https://github.com/Abdess/retroarch_system.git
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38 lines
1.2 KiB
YAML
38 lines
1.2 KiB
YAML
emulator: Gearcoleco
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type: libretro
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core_classification: official_port
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source: "https://github.com/drhelius/Gearcoleco"
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upstream: "https://github.com/drhelius/Gearcoleco"
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profiled_date: "2026-03-23"
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core_version: "1.0.0"
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display_name: "Coleco - ColecoVision (Gearcoleco)"
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cores:
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- gearcoleco
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systems:
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- colecovision
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notes: |
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ColecoVision emulator by Ignacio Sanchez (drhelius). Official port
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maintained by the upstream author. The ColecoVision BIOS ROM is required.
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Without it, the core renders a static placeholder image (kNoBiosImage from
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no_bios.h) and games do not execute.
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The libretro wrapper (libretro.cpp:293-306) tries "colecovision.rom" first,
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then falls back to "coleco.rom". Both resolve to the same LoadBios() call
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in Memory.cpp:228-259 which validates size == 0x2000 (8192 bytes) only.
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No hash check is performed.
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On reset, BIOS byte at offset 0x69 is patched for region selection:
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0x3C for NTSC, 0x32 for PAL (Memory.cpp:184-187).
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SGM (Super Game Module) expanded RAM requires no additional BIOS files.
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files:
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- name: "colecovision.rom"
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aliases: ["coleco.rom"]
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system: colecovision
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required: true
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size: 8192
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validation: [size]
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source_ref: "platforms/libretro/libretro.cpp:293-306, src/Memory.cpp:228-259"
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