mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-11-01 07:33:45 -06:00
Abdessamad Derraz
e7aa9e870b
Each libretro profile records version_basis and core_version is read there at its pin. snes9x states 1.63 in snes9x.h, nestopia 2.0.0, mgba 0.11.0, vice 3.10, atari800's libretro tree 7.0.0. Cores whose build takes its version from git carry the nearest tag in describe form (flycast v2.7-90-ge88b0ce, ppsspp, duckstation, gearcoleco), placeholders copied from .info files (Git, SVN) are replaced by the code's statement, and a code that states none is null with kind none.
75 lines
3.3 KiB
YAML
75 lines
3.3 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: "7809bb68ee96c3e6c74e9d9c4c8bb09aa7c6801d"
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core_version: "v0.5.0"
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version_basis:
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kind: file
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path: "libgambatte/libretro/libretro.cpp"
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pattern: 'library_version\s*=\s*"(v[0-9.]+)"\s*GIT_VERSION'
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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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With GB Colorization set to "custom", a DMG game reads the first of
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palettes/<rom name>.pal, palettes/<header title>.pal and
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palettes/default.pal under the system directory. Each line sets one of
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the twelve background and sprite colours as Background0= to Sprite%2023=
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with a 24-bit RGB value. Colours the file leaves out keep their previous
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value (libgambatte/libretro/libretro.cpp:2012-2191,
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libgambatte/libretro/libretro.cpp:2521-2522,
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libgambatte/libretro/libretro.cpp:2582-2583).
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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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- name: "default.pal"
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path: "palettes/default.pal"
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system: nintendo-gb
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description: "Custom DMG colour palette"
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required: false
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unsourceable: "user-created palette, the core and its repository distribute none"
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source_ref: "source libgambatte/libretro/libretro.cpp:2012-2091, source libgambatte/libretro/libretro.cpp:2521-2522, source libgambatte/libretro/libretro.cpp:2582-2583"
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note: "Read only when GB Colorization is custom and no palette named after the ROM file or the header title exists."
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