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.
47 lines
1.9 KiB
YAML
47 lines
1.9 KiB
YAML
emulator: mGBA Splitscreen
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type: libretro
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core_classification: community_fork
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source: "https://github.com/Spuds0588/mgba-splitscreen"
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upstream: "https://github.com/mgba-emu/mgba"
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profiled_date: "2026-10-04"
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source_commit: "f1d5975d77285f77affbfe64b7050ebd5c4b6a77"
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upstream_commit: "afd6f14eaf8bd35214ed3fb9dc69a92bfc3877a9"
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core_version: "0.3.1"
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version_basis:
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kind: file
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path: "mgba-splitscreen/package.json"
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pattern: '"version":\s+"([^"]+)'
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display_name: "Nintendo - Game Boy Advance (mGBA Splitscreen)"
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cores:
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- mgba_splitscreen
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systems:
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- nintendo-gba
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notes: |
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mGBA Splitscreen is a fork of mGBA that runs 2-4 linked GBA cores in a
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single libretro instance over mGBA's lockstep SIO driver. Built from
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the upstream mGBA tree with -DBUILD_LIBRETRO_SPLITSCREEN=ON
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(CMakeLists.txt:1036-1058), the fork adds the mgba-splitscreen link
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fixes (Four Swords handshake assist and a gated deadlock kick) on top
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of mGBA's library layer. The player instances live in
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src/platform/libretro-splitscreen/instances.c and reject anything that
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is not a GBA ROM (src/platform/libretro-splitscreen/instances.c:114-119).
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The splitscreen wrapper never performs its own BIOS lookup. Each
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per-player mCore reaches mGBA's shared GBA core, which looks for
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gba_bios.bin in the system directory and uses the built-in HLE BIOS
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(src/gba/hle-bios.c) when it is missing. The core-info declares one
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optional firmware entry (gba_bios.bin) and only accepts the .gba
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extension, so GB/GBC/SGB BIOS files that upstream mGBA supports are
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unreachable here.
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files:
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- name: gba_bios.bin
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system: nintendo-gba
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required: false
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hle_fallback: true
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size: 16384 # 16 KB (GBA_SIZE_BIOS)
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validation: [size]
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note: "GBA BIOS, same file upstream mGBA uses. HLE replacement built in."
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source_ref: "source src/platform/libretro-splitscreen/mgba_splitscreen_libretro.info:34-37 (firmware0_desc/path/opt), source src/gba/gba.c:520-551 (GBALoadBIOS, inherited from mGBA core)"
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