mirror of
https://github.com/Abdess/retroarch_system.git
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46 lines
2.0 KiB
YAML
46 lines
2.0 KiB
YAML
emulator: RustyNES
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type: libretro
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core_classification: official_port
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source: "https://github.com/doublegate/RustyNES"
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upstream: "https://github.com/doublegate/RustyNES"
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profiled_date: "2026-09-03"
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source_commit: "4e77905e045c0e971b53c5abee8d0a07a4b1bfdb"
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core_version: "2.6.12"
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display_name: "Nintendo - NES / Famicom (RustyNES)"
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cores:
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- rustynes
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systems:
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- nintendo-nes
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- nintendo-fds
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notes: |
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RustyNES is a NES and Famicom emulator written in Rust by DoubleGate.
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The libretro core is the crates/rustynes-libretro crate of the same
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repository, built from the main branch
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(crates/rustynes-libretro/Makefile, .gitlab-ci.yml). The crate pulls
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rustynes-core with default features off, so the HD pack loader is not
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compiled into the core and nothing else is read from disk.
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Cartridge content needs no external file. A .fds disk image goes to
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Nes::from_disk, which needs the Famicom Disk System BIOS: the core joins
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disksys.rom to the frontend system directory and reads the whole file
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(crates/rustynes-libretro/src/lib.rs:921-938). A missing file, or a
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frontend without a system directory, makes retro_load_game fail with an
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error. Fds::new rejects a BIOS that is not exactly 8192 bytes
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(crates/rustynes-mappers/src/fds.rs:1351-1357); no hash is checked. The
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FDS device maps the BIOS and boots from its reset vector.
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The version comes from the workspace Cargo.toml. The .info in
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libretro-core-info says v2.3.5 and the copy in the repository v2.6.12;
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the md5 in the .info notes is not enforced by the code.
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files:
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- name: "disksys.rom"
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system: nintendo-fds
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description: "Famicom Disk System BIOS"
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required: true
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size: 8192
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validation: [size]
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source_ref: "crates/rustynes-libretro/src/lib.rs:921-945, crates/rustynes-core/src/nes.rs:356-358, crates/rustynes-core/src/bus.rs:1015-1021, crates/rustynes-mappers/src/fds.rs:121, crates/rustynes-mappers/src/fds.rs:1351-1357"
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note: "Read only when the content extension is .fds. Any other size fails the load."
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