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https://github.com/Abdess/retroarch_system.git
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69ac957a3c
Marked files with HLE fallback based on source code analysis: - desmume: 3 files (NDSSystem.cpp fake BIOS generation) - dolphin: 31 files (HLE for IPL, DSP, fonts, Wii system) - pcsx_rearmed: 7 files (psxbios.c full HLE replacement) - easyrpg: 4 files (RTP and soundfonts optional) - dosbox_core: all MT-32/soundfont/BASS files - dosbox_pure: all MT-32/soundfont files - boytacean: 8 boot ROMs (open-source embedded in binary) - citra: shared_font.bin only (HLE for font rendering) - azahar: shared_font.bin only Not modified (no HLE): beetle_psx, duckstation, ecwolf, emuscv.
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, desmume2015]
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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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