Azahar - RetroBIOS

Type	standalone + libretro
Classification	Community forks
Source	https://github.com/johndoe6345789/azahar_libretro
Upstream	https://github.com/azahar-emu/azahar
Version	Git
Profiled	2026-03-23
Cores	azahar
Systems	nintendo-3ds

Technical notes

Successor to Citra (via Lime3DS). Libretro port by johndoe6345789. Data dir: azahar-emu (legacy: citra-emu, lime3ds-emu). ref: src/common/common_paths.h:41-43

Key file named keys.txt (not aes_keys.txt like old Citra). Embedded encrypted key fallback if keys.txt absent. ref: src/core/hw/aes/key.cpp:282-297

Uses RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY. ref: src/citra_libretro/environment.cpp:179

.info has firmware_count=0 but core loads files from system_dir.

boot9.bin and sector0x96.bin are defined in common_paths.h:84-85 but never loaded by any code path. Dead defines from Citra heritage.

System archives (shared font, Mii data, country list, bad word list) have open-source replacements embedded in the binary. ref: src/core/file_sys/archive_ncch.cpp:146-176

7 files | 0 required, 7 optional | 7 in repo, 0 missing | 2 with HLE fallback

keys.txt optional in repo HLE fallback

• Path: sysdata/keys.txt
• System: nintendo-3ds
• Source: src/core/hw/aes/key.cpp:283, src/common/common_paths.h:83
• Platforms: emudeck
• embedded encrypted fallback if missing

shared_font.bin optional in repo HLE fallback

• Path: sysdata/shared_font.bin
• System: nintendo-3ds
• Source: src/core/hle/service/apt/apt.cpp:263-278
• legacy load path; embedded open-source font used if missing

seeddb.bin optional in repo

• Path: sysdata/seeddb.bin
• System: nintendo-3ds
• Source: src/core/file_sys/seed_db.cpp:15
• Platforms: bizhawk
• game seed database for 9.6+ titles

otp.bin optional in repo

• Path: sysdata/otp.bin
• System: nintendo-3ds
• Size: 256 B
• Validation: size, crypto
• Source: src/core/hw/unique_data.cpp:126-167, src/core/hw/unique_data.cpp:213
• OTP data for console key derivation

movable.sed optional in repo

• Path: nand/private/movable.sed
• System: nintendo-3ds
• Size: 288 B / 320 B
• Validation: size, signature
• Source: src/core/hw/unique_data.cpp:170-200, src/core/hw/unique_data.cpp:217, src/core/hw/unique_data.h:103-133
• console-unique key seed; 288 bytes without the AES MAC block, 320 with it

SecureInfo_A optional in repo

• Path: nand/rw/sys/SecureInfo_A
• System: nintendo-3ds
• Size: 273 B
• Validation: size, signature
• Source: src/core/hw/unique_data.cpp:43-92, src/core/hw/unique_data.cpp:205
• console serial and region data

LocalFriendCodeSeed_B optional in repo

• Path: nand/rw/sys/LocalFriendCodeSeed_B
• System: nintendo-3ds
• Size: 272 B
• Validation: size, signature
• Source: src/core/hw/unique_data.cpp:94-123, src/core/hw/unique_data.cpp:209, src/core/hw/unique_data.h:76
• friend code generation seed

Generated on 2026-09-14T09:03:09Z