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Abdessamad Derraz
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103 lines
5.1 KiB
YAML
103 lines
5.1 KiB
YAML
emulator: DingooEmu
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type: standalone + libretro
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core_classification: pure_libretro
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source: "https://github.com/AloysHF/DingooEmu"
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upstream: "https://github.com/AloysHF/DingooEmu"
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profiled_date: "2026-09-17"
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source_commit: "f57c9339e6021cd37c4bd694c14b0813a9b5ee72"
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core_version: "0.3.0"
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display_name: "Dingoo - A320 / Gemei A330 (DingooEmu)"
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cores:
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- dingooemu
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systems:
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- dingoo-a320
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- gemei-a330
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notes: |
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Dingoo A320 and Gemei A330 emulator written in Rust by AloysHF. The
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libretro core and the dingoo-emu standalone binary share the
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dingooemu-core crate. Content is read from its full path (need_fullpath
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= true, crates/dingooemu-libretro/src/api.rs:87,
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crates/dingooemu/src/main.rs:226, crates/dingooemu-core/src/emulator.rs:33-37,
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crates/dingooemu-core/src/package.rs:124-135). The CCDL package's load
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address selects the runtime: a .app loaded in the 0x8xxxxxxx range runs on
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the MIPS32 interpreter as an A320, a .cc, .c2s or .c3s loaded at
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0x10100000 (retail SDK) or 0x13800000 (homebrew SDK) runs on the
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ARM32/Thumb interpreter as an A330
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(crates/dingooemu-core/src/content.rs:66-74, 104-121,
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crates/dingooemu-core/src/emulator.rs:44-55). Both runtimes bind the
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package's imports to Rust implementations of the device SDK
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(crates/dingooemu-core/src/a320/runtime/sdk_hle/mod.rs:22-30,
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crates/dingooemu-core/src/a330/runtime/sdk_hle/mod.rs:226-234). No
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firmware code is executed and no font or system file backs those calls.
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The A320 guest file API
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(crates/dingooemu-core/src/a320/runtime/sdk_hle/files.rs:43-128)
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resolves a name in three steps: a file under the save directory, a
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resource packed inside the .app, then a host file relative to the .app's
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own directory (crates/dingooemu-core/src/a320/runtime.rs:1645-1665,
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crates/dingooemu-core/src/a320/runtime.rs:1592-1618,
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crates/dingooemu-core/src/a320/runtime.rs:1424-1428,
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crates/dingooemu-core/src/a320/runtime.rs:1449-1462). fsys_findfirst
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enumerates the .app's directory and refuses to leave it
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(crates/dingooemu-core/src/a320/runtime.rs:1519-1529).
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The A330 guest file API
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(crates/dingooemu-core/src/a330/runtime/sdk_hle/files.rs:74-135)
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resolves a name in five steps: a file under the save directory, a host
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file relative to the content's directory, a resource packed inside the
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package, the zip payload appended to the package, then an entry of the
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firmware archive mounted from the content's directory. A name none of
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them answers fails the open. fsys_findfirst enumerates the content's
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directory and refuses to leave it
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(crates/dingooemu-core/src/a330/runtime/sdk_hle/files.rs:381-395).
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Files the game creates land in the frontend save directory
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(crates/dingooemu-libretro/src/api.rs:150-155,
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crates/dingooemu-core/src/emulator.rs:173-179) or, when the frontend
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gives none and in the standalone, beside the content
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(crates/dingooemu-core/src/a320/runtime.rs:372,
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crates/dingooemu-core/src/a330/runtime.rs:415-417). The core queries
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RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY only
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(crates/dingooemu-libretro/src/constants.rs:30), and no system directory
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constant exists in the crate.
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With the diagnostic core option on, dingooemu-diagnostic.txt is written
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to the save directory, or beside the content without one
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(crates/dingooemu-libretro/src/api.rs:156-159,
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crates/dingooemu-libretro/src/diagnostics.rs:8,
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crates/dingooemu-libretro/src/diagnostics.rs:83-89,
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crates/dingooemu-libretro/src/diagnostics.rs:310-318). No include_bytes!
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data is compiled in. The .info declares firmware_count = 0: the one file
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below is read from the content's directory, never from the system
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directory.
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files:
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- name: "A330.HXF"
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system: gemei-a330
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required: false
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storage: large_file
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load_from: content_dir
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size: 76352901
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validation: [signature]
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md5: "d8e1849773223a842076ca04053a13a4"
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sha1: "69b3544d992a23e8b736c61837914a4d1b4e7bb5"
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description: "Gemei A330 firmware update archive, V1.1 build3 of 2011-02-13"
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note: >-
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Mounted when an A330 package loads
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(crates/dingooemu-core/src/a330/runtime.rs:415-418): the content's directory is
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scanned and the first entry whose extension is hxf, in any case, is
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read whole. The file must start with WADF0100 and declare at offset
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20 a size within its own length. Each record is a u32 name length,
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the name, one byte, a u32 data length and the data, and a zero name
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length ends the table. Names are lowercased, backslashes turned to
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slashes and a leading drive letter dropped, so Z:\SYSTEM\nls\c_936.nls
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and system/nls/c_936.nls reach the same entry. The archive is the
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last source consulted when a game opens a file the save directory,
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the content directory, the package's resources and its appended zip
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payload do not hold. Without it such an open fails and the runtime
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goes on. The image itself is never hashed, and the hashes here name
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the last firmware Gemei published, and the V1.10 image of 2011-01-25
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indexes the same way.
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source_ref: "crates/dingooemu-core/src/a330/firmware_archive.rs:16-50, 54-58, 63-96, 117-124, crates/dingooemu-core/src/a330/runtime/sdk_hle/files.rs:108-133"
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