mirror of
https://github.com/Abdess/retroarch_system.git
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Abdessamad Derraz
b3b3880c19
Profiles that read two repositories, a libretro port and its upstream, now prefix each citation with source or upstream, decided by which tree carries the cited value at its pin. The emulator pages use the word to tell libretro glue, emulator code as the port carries it, and the upstream emulator apart.
57 lines
2.3 KiB
YAML
57 lines
2.3 KiB
YAML
emulator: Gambatte
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type: libretro
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core_classification: community_fork
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source: "https://github.com/libretro/gambatte-libretro"
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upstream: "https://github.com/sinamas/gambatte"
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profiled_date: "2026-03-23"
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source_commit: "d9d6cd06382d1ced30de34d56d3609452323dab1"
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core_version: "v0.5.0"
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display_name: "Nintendo - Game Boy / Color (Gambatte)"
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cores:
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- gambatte
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systems: [nintendo-gb, nintendo-gbc]
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notes: |
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Accuracy-focused GB/GBC emulator. No BIOS required for normal operation:
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the built-in HLE boot sequence skips the Nintendo logo animation.
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Core option gambatte_gb_bootloader (default: enabled) enables loading
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official boot ROMs from the system directory for the real startup animation.
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If missing, emulation works without them.
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Boot ROM selection by hardware mode:
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- DMG: gb_bios.bin (256 bytes)
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- CGB or GBA: gbc_bios.bin (2304 bytes)
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In GBA mode the core patches the CGB boot ROM at 0xF2 to fake GBA
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detection (ld b,0x01), enabling GBA-enhanced features in compatible
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GBC games.
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The upstream standalone supports SGB boot ROM loading, but the libretro
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port does not implement this.
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Custom palette files (palettes/*.pal) are user-created colorization
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configs loaded when GB Colorization is set to "custom". These are
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user-generated content, not distributable files.
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files:
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- name: "gb_bios.bin"
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system: nintendo-gb
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description: "Original Game Boy (DMG-01) boot ROM"
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required: false
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hle_fallback: true
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min_size: 256
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validation: [size]
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source_ref: "source libgambatte/libretro/libretro.cpp:1426-1486 (get_bootloader_from_file), source libgambatte/libretro/libretro.cpp:1734-1742, source libgambatte/src/bootloader.cpp:30-65 (load)"
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note: "Mapped at 0x0000-0x00FF, swapped out when register 0xFF50 is written."
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- name: "gbc_bios.bin"
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system: nintendo-gbc
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description: "Game Boy Color (CGB-001) boot ROM"
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required: false
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hle_fallback: true
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min_size: 2304
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validation: [size]
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source_ref: "source libgambatte/libretro/libretro.cpp:1426-1486 (get_bootloader_from_file), source libgambatte/libretro/libretro.cpp:1734-1742, source libgambatte/src/bootloader.cpp:30-65 (load)"
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note: "Mapped at 0x0000-0x08FF with cartridge data preserved at 0x0100-0x01FF. Also used for GBA mode with a patch at 0xF2. Presence required for FORCE_CGB flag when hw mode is GBC or GBA."
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