mirror of
https://github.com/Abdess/retroarch_system.git
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98afc86d0c
Created desmume2015.yml with files: [] (code doesn't load BIOS). Removed desmume2015 from desmume.yml cores list. Removed cdi2015 from same_cdi.yml (separate profile exists). Frozen snapshots must have their own profiles because their firmware behavior differs from the current version.
48 lines
1.9 KiB
YAML
48 lines
1.9 KiB
YAML
emulator: DeSmuME
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type: libretro
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source: "https://github.com/libretro/desmume"
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profiled_date: "2026-03-18"
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core_version: "SVN"
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display_name: "Nintendo - DS (DeSmuME)"
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cores: [desmume]
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systems: [nintendo-ds]
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notes: |
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DeSmuME provides full HLE (High-Level Emulation) of all ARM7/ARM9 SWI
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routines, making BIOS files optional for most games. When external BIOS
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is disabled, a minimal fake BIOS with exception vectors and IRQ handler
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stubs is generated at runtime (NDSSystem.cpp:2208-2224, 2263-2278).
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External BIOS enables SWI-from-BIOS mode and firmware boot animation.
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Firmware boot requires both ARM7+ARM9 BIOS loaded AND interpreter mode
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(JIT incompatible, see libretro.cpp:788).
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ARM9 BIOS read size: 4096 bytes (0x1000). ARM7 BIOS read size: 16384
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bytes (0x4000). No DSi support.
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Libretro core option: desmume_use_external_bios (enabled/disabled).
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files:
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- name: "bios7.bin"
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system: nintendo-ds
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description: "ARM7 BIOS"
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required: false
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hle_fallback: true
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size: 16384
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source_ref: "desmume/src/NDSSystem.cpp:2178-2182, frontend/libretro/libretro.cpp:763"
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notes: "HLE fallback covers all SWI calls; native file needed for firmware boot and SWI-from-BIOS accuracy"
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- name: "bios9.bin"
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system: nintendo-ds
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description: "ARM9 BIOS"
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required: false
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hle_fallback: true
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size: 4096
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source_ref: "desmume/src/NDSSystem.cpp:2236-2239, frontend/libretro/libretro.cpp:764"
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notes: "HLE fallback covers all SWI calls; native file needed for firmware boot and logo comparison (Pal Park)"
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- name: "firmware.bin"
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system: nintendo-ds
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description: "NDS firmware image"
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required: false
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hle_fallback: true
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source_ref: "desmume/src/NDSSystem.cpp:2653-2655, frontend/libretro/libretro.cpp:765"
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notes: "Dummy firmware generated when absent; native firmware needed for boot animation, wifi config, user settings"
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