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e13e8734b9
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.
56 lines
2.1 KiB
YAML
56 lines
2.1 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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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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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; 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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size: 256
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validation: {core: [size], upstream: [size, crc32]}
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source_ref: "libretro.cpp:1303-1363 (get_bootloader_from_file), bootloader.cpp:20-55 (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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size: 2304
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validation: {core: [size], upstream: [size, crc32]}
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source_ref: "libretro.cpp:1303-1363 (get_bootloader_from_file), bootloader.cpp:20-55 (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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