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libretro/emulators/emux_gb.yml
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Abdessamad Derraz 4231902a6c docs: write prose without dashes or semicolons
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YAML

emulator: "emux (Game Boy)"
type: libretro
core_classification: official_port
source: "https://github.com/libretro/emux"
upstream: "https://github.com/sronsse/emux"
profiled_date: "2026-03-23"
source_commit: "3e558cb15157fcb1944846a845547d369605c963"
core_version: "0.1"
display_name: "Nintendo - Game Boy / Color (Emux GB)"
cores:
- emux_gb
systems:
- nintendo-gb
notes: |
emux is a multi-system emulator by Sebastien Ronsse. The libretro port
renamed the boot ROM from DMG_ROM.bin (upstream, controllers/mapper/gb_mapper.c:32) to
dmg_boot.bin (libretro, controllers/mapper/gb_mapper.c:35) to match RetroArch conventions.
Boot ROM loaded via file_map(PATH_SYSTEM, "dmg_boot.bin", 0, 256) in
gb_mapper_init (controllers/mapper/gb_mapper.c:225-228). Returns false on failure, no HLE
fallback. Mapped at 0x0000-0x00FF, overlays ROM0 until BOOT_LOCK (0xFF50)
is written non-zero (lock_writeb, controllers/mapper/gb_mapper.c:97-106).
No hash validation. Code accepts any 256+ byte file.
is_experimental=true. No save states, rewind, or netplay.
files:
- name: "dmg_boot.bin"
aliases: ["DMG_ROM.bin"]
system: nintendo-gb
description: "Game Boy (DMG) boot ROM"
required: true
size: 256
source_ref: "controllers/mapper/gb_mapper.c:35 (bootrom_path), controllers/mapper/gb_mapper.h:13 (BOOTROM_SIZE=256), controllers/mapper/gb_mapper.c:225-232 (file_map + error)"
note: "Upstream name DMG_ROM.bin, renamed by libretro port (controllers/mapper/gb_mapper.c:33-34)."