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feat: profile azahar from its in-tree core
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Abdessamad Derraz committed
commit
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@@ -0,0 +1,108 @@
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emulator: "Azahar (SDL2)"
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type: standalone
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core_classification: community_fork
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source: "https://github.com/johndoe6345789/azahar_libretro"
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profiled_date: "2026-10-22"
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source_commit: "c8d39853c1ebacc5657e51d601713a09404ca8a7"
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core_version: "Git"
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display_name: "Nintendo - 3DS (Azahar SDL2)"
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mode: standalone
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cores: ["azahar"]
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built_by: [knulli]
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systems:
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- nintendo-3ds
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notes: |
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Fork of Azahar by johndoe6345789 that keeps the SDL2 frontend
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(src/citra_sdl) beside a libretro port. ENABLE_SDL2_FRONTEND links it into
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the azahar executable, without Qt.
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ref: CMakeLists.txt:101, src/CMakeLists.txt:196-206, src/citra_meta/CMakeLists.txt:1-7,
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src/citra_meta/CMakeLists.txt:47
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Data dir: azahar-emu under XDG_DATA_HOME (Azahar on Windows and macOS), with
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citra-emu and lime3ds-emu kept as legacy locations. A user/ directory in the
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working directory takes precedence. sysdata/ and nand/ sit under it, and the
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SDL2 config can move nand/ with use_custom_storage and nand_directory.
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ref: src/common/common_paths.h:19-49, src/common/file_util.cpp:844-899,
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src/common/file_util.cpp:902-904, src/citra_sdl/config.cpp:217-222
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keys.txt has an AES-encrypted key blob compiled in, used when the file is
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absent.
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ref: src/core/hw/aes/key.cpp:282-300, src/core/hw/default_keys.h:4-5
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System archives (shared font, Mii data, country list, bad word list) have
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open-source replacements embedded in the binary.
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ref: src/core/file_sys/archive_ncch.cpp:126-188
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boot9.bin and sector0x96.bin are defined but read by no code path.
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ref: src/common/common_paths.h:84-85
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mcu.dat and mac.txt in sysdata hold per-installation state the emulator
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writes itself.
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ref: src/core/hle/service/cfg/cfg.cpp:946, src/core/hle/service/cfg/cfg.cpp:961,
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src/core/hle/service/cfg/cfg.cpp:1027, src/core/hle/service/cfg/cfg.cpp:1050
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files:
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- name: keys.txt
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path: sysdata/keys.txt
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system: nintendo-3ds
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required: false
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hle_fallback: true
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sha1: "5fab786695311433602028cd89898689c5df0898"
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md5: "cb52d323b13129a2f0bc3e3e911e567f"
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note: "embedded encrypted fallback if missing: default_keys_enc, AES-CBC with a zero key and IV. The hashes are those of the decrypted text without its PKCS#7 block"
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source_ref: "src/core/hw/aes/key.cpp:146-278, src/core/hw/aes/key.cpp:282-300, src/common/common_paths.h:83, src/core/hw/default_keys.h:4-5"
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- name: shared_font.bin
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path: sysdata/shared_font.bin
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system: nintendo-3ds
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required: false
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hle_fallback: true
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note: "legacy path, tried when the shared font system archive fails to load"
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source_ref: "src/core/hle/service/apt/apt.cpp:263-279, src/core/hle/service/apt/apt.cpp:285-290, src/common/common_paths.h:82"
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- name: seeddb.bin
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path: sysdata/seeddb.bin
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system: nintendo-3ds
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required: false
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note: "game seed database for 9.6+ titles, an empty one is written if absent"
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source_ref: "src/core/file_sys/seed_db.cpp:12-58"
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- name: otp.bin
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path: sysdata/otp.bin
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system: nintendo-3ds
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required: false
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size: 256
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validation: [size, crypto]
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note: "console-unique OTP, AES-CBC decrypted with the keys.txt OTP key, then checked against the OTP magic and its SHA-256"
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source_ref: "src/core/file_sys/otp.cpp:14-55, src/core/hw/unique_data.cpp:126-168, src/core/hw/unique_data.cpp:213-215"
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- name: movable.sed
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path: nand/private/movable.sed
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system: nintendo-3ds
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required: false
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size: [288, 320]
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validation: [size, signature]
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on_mismatch: {signature: warn}
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note: "console-unique key seed, 288 bytes without the AES MAC block, 320 with it"
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source_ref: "src/core/hw/unique_data.cpp:170-203, src/core/hw/unique_data.cpp:217-219, src/core/hw/unique_data.h:103-133"
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- name: SecureInfo_A
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path: nand/rw/sys/SecureInfo_A
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system: nintendo-3ds
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required: false
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size: 273
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validation: [size, signature]
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on_mismatch: {signature: warn}
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note: "console serial and region data"
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source_ref: "src/core/hw/unique_data.cpp:43-92, src/core/hw/unique_data.cpp:205-207, src/core/hw/unique_data.h:57"
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- name: LocalFriendCodeSeed_B
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path: nand/rw/sys/LocalFriendCodeSeed_B
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system: nintendo-3ds
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required: false
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size: 272
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validation: [size, signature]
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on_mismatch: {signature: warn}
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note: "friend code generation seed"
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source_ref: "src/core/hw/unique_data.cpp:94-124, src/core/hw/unique_data.cpp:209-211, src/core/hw/unique_data.h:76"
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+65
-42
@@ -1,99 +1,122 @@
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emulator: Azahar
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type: standalone + libretro
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core_classification: community_fork
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source: "https://github.com/johndoe6345789/azahar_libretro"
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core_classification: official_port
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source: "https://github.com/azahar-emu/azahar"
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upstream: "https://github.com/azahar-emu/azahar"
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profiled_date: "2026-03-23"
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source_commit: "9dd12da328c753806cbd4f2b0e048fced97ae97d"
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upstream_commit: "9b045bf8370d035cacd99e5ad19a082df9e3b262"
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core_version: "Git"
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profiled_date: "2026-10-22"
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source_commit: "219d743a1e698101fe1ab8bef43e6563126c3c27"
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core_version: "2126.2"
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display_name: "Nintendo - 3DS (Azahar)"
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cores: [azahar]
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cores:
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- azahar
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- azahar-sa
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systems:
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- nintendo-3ds
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# path: is where the libretro core reads a file, standalone_path: where the
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# standalone app reads it under its user directory.
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notes: |
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Successor to Citra (via Lime3DS). Libretro port by johndoe6345789.
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Data dir: azahar-emu (legacy: citra-emu, lime3ds-emu).
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ref: src/common/common_paths.h:41-43
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Successor to Citra (via Lime3DS). The libretro core lives in the same
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repository (src/citra_libretro) and is built with ENABLE_LIBRETRO, which
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forces the SDL2, Qt and web service frontends off.
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ref: CMakeLists.txt:40, CMakeLists.txt:109-111, CMakeLists.txt:165-187
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Key file named keys.txt (not aes_keys.txt like old Citra).
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Embedded encrypted key fallback if keys.txt absent.
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ref: src/core/hw/aes/key.cpp:282-297
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The libretro core moves the user directory to <save_dir>/Azahar/, or to
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<system_dir>/Azahar/ when the frontend gives no save directory. The core
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option "Azahar Default" keeps the standalone data directory instead.
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ref: src/citra_libretro/core_settings.cpp:592-603, src/citra_libretro/core_settings.cpp:1048-1080,
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src/citra_libretro/environment.cpp:191-208
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Uses RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY.
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ref: src/citra_libretro/environment.cpp:179
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Standalone data dir: azahar-emu under XDG_DATA_HOME (Azahar on Windows and
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macOS), with citra-emu and lime3ds-emu kept as legacy locations. A user/
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directory beside the executable (Windows) or in the working directory takes
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precedence. sysdata/, nand/ and sdmc/ sit under the user directory.
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ref: src/common/common_paths.h:19-49, src/common/file_util.cpp:943-972,
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src/common/file_util.cpp:1023-1025
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.info has firmware_count=0 but core loads files from system_dir.
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keys.txt has an AES-encrypted key blob compiled in, used when the file is
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absent. ENABLE_BUILTIN_KEYBLOB defaults to ON and is not among the options a
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libretro build forces off.
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ref: src/core/hw/aes/key.cpp:292-314, CMakeLists.txt:154, src/core/CMakeLists.txt:501-503
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boot9.bin and sector0x96.bin are defined in common_paths.h:84-85
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but never loaded by any code path. Dead defines from Citra heritage.
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System archives (shared font, Mii data, country list, bad word list) are read
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from installed NAND titles. Open-source replacements embedded in the binary
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answer when the title is absent.
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ref: src/core/file_sys/archive_ncch.cpp:150-214, src/core/hle/service/apt/apt.cpp:211-276
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System archives (shared font, Mii data, country list, bad word list)
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have open-source replacements embedded in the binary.
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ref: src/core/file_sys/archive_ncch.cpp:146-176
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boot9.bin and sector0x96.bin are defined but read by no code path.
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ref: src/common/common_paths.h:84-85
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The .info declares no firmware.
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files:
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- name: keys.txt
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path: sysdata/keys.txt
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path: Azahar/sysdata/keys.txt
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standalone_path: sysdata/keys.txt
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system: nintendo-3ds
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required: false
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hle_fallback: true
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sha1: "5fab786695311433602028cd89898689c5df0898"
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md5: "cb52d323b13129a2f0bc3e3e911e567f"
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note: "embedded encrypted fallback if missing: default_keys_enc, AES-CBC with a zero key and IV. The hashes are those of the decrypted text without its PKCS#7 block"
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source_ref: "source src/core/hw/aes/key.cpp:283-300, upstream src/common/common_paths.h:83, source src/core/hw/default_keys.h:4-5"
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sha1: "5288772be438b86978a801e6dcb14228ad3a20af"
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md5: "4812e96097b7fc1bdd7b40366208b7a7"
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note: "AES key slots, common keys and NFC secrets. Embedded encrypted blob used if missing: default_keys_enc, AES-CBC with a zero key and IV, the hashes are those of the decrypted text"
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source_ref: "src/core/hw/aes/key.cpp:151-288, src/core/hw/aes/key.cpp:292-314, src/common/common_paths.h:83, src/core/hw/default_keys.h:11"
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- name: shared_font.bin
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path: sysdata/shared_font.bin
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path: Azahar/sysdata/shared_font.bin
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standalone_path: sysdata/shared_font.bin
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system: nintendo-3ds
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required: false
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hle_fallback: true
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note: "legacy load path, embedded open-source font used if missing"
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source_ref: "source src/core/hle/service/apt/apt.cpp:263-278"
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note: "legacy path, tried when the shared font system archive fails to load"
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source_ref: "src/core/hle/service/apt/apt.cpp:278-293, src/core/hle/service/apt/apt.cpp:300-305, src/common/common_paths.h:82"
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- name: seeddb.bin
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path: sysdata/seeddb.bin
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path: Azahar/sysdata/seeddb.bin
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standalone_path: sysdata/seeddb.bin
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system: nintendo-3ds
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required: false
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note: "game seed database for 9.6+ titles"
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source_ref: "upstream src/core/file_sys/seed_db.cpp:15"
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note: "game seed database for 9.6+ titles, an empty one is written if absent"
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source_ref: "src/core/file_sys/seed_db.cpp:12-58"
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- name: otp.bin
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path: sysdata/otp.bin
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path: Azahar/sysdata/otp.bin
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standalone_path: sysdata/otp.bin
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system: nintendo-3ds
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required: false
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size: 256
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validation: [size, crypto]
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note: "OTP data for console key derivation"
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source_ref: "source src/core/hw/unique_data.cpp:126-167, source src/core/hw/unique_data.cpp:213"
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note: "console-unique OTP, AES-CBC decrypted with the keys.txt OTP key, then checked against the OTP magic and its SHA-256"
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source_ref: "src/core/file_sys/otp.cpp:14-55, src/core/hw/unique_data.cpp:143-192, src/core/hw/unique_data.cpp:243-245"
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- name: movable.sed
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path: nand/private/movable.sed
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path: Azahar/nand/private/movable.sed
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standalone_path: nand/private/movable.sed
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system: nintendo-3ds
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required: false
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size: [288, 320]
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validation: [size, signature]
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on_mismatch: {signature: warn}
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note: "console-unique key seed, 288 bytes without the AES MAC block, 320 with it"
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source_ref: "source src/core/hw/unique_data.cpp:170-200, source src/core/hw/unique_data.cpp:217, source src/core/hw/unique_data.h:103-133"
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source_ref: "src/core/hw/unique_data.cpp:194-233, src/core/hw/unique_data.cpp:247-249, src/core/hw/unique_data.h:103-133"
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- name: SecureInfo_A
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path: nand/rw/sys/SecureInfo_A
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path: Azahar/nand/rw/sys/SecureInfo_A
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standalone_path: nand/rw/sys/SecureInfo_A
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system: nintendo-3ds
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required: false
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size: 273
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validation: [size, signature]
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on_mismatch: {signature: warn}
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note: "console serial and region data"
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source_ref: "source src/core/hw/unique_data.cpp:43-92, source src/core/hw/unique_data.cpp:205"
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note: "console serial and region. A failed signature is retried against every region"
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source_ref: "src/core/hw/unique_data.cpp:48-103, src/core/hw/unique_data.cpp:235-237, src/core/hw/unique_data.h:57"
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- name: LocalFriendCodeSeed_B
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path: nand/rw/sys/LocalFriendCodeSeed_B
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path: Azahar/nand/rw/sys/LocalFriendCodeSeed_B
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standalone_path: nand/rw/sys/LocalFriendCodeSeed_B
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system: nintendo-3ds
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required: false
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size: 272
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validation: [size, signature]
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on_mismatch: {signature: warn}
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note: "friend code generation seed"
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source_ref: "source src/core/hw/unique_data.cpp:94-123, source src/core/hw/unique_data.cpp:209, source src/core/hw/unique_data.h:76"
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source_ref: "src/core/hw/unique_data.cpp:105-141, src/core/hw/unique_data.cpp:239-241, src/core/hw/unique_data.h:76"
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