mirror of
https://github.com/Abdess/retroarch_system.git
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Every profile now has: - profiled_date: date of source code analysis - core_version: version from libretro-core-info .info files - display_name: human-readable name from .info files 260/260 profiles complete. 294/294 libretro cores covered. Standalone emulators (cemu, rpcs3, xemu, vita3k) versioned manually.
63 lines
2.0 KiB
YAML
63 lines
2.0 KiB
YAML
emulator: bnes
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type: libretro
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source: "https://github.com/libretro/bnes-libretro"
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profiled_date: "2026-03-18"
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core_version: "v083"
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display_name: "Nintendo - NES / Famicom (bnes)"
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cores:
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- bnes
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systems:
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- nes
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notes: |
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bnes is a NES emulator based on byuu's bNES/higan v083 NES module, ported
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to libretro by Ryphecha. It is a lightweight, accuracy-focused NES core.
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The core loads cartridge data entirely through retro_load_game with
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need_fullpath=false (libretro.cpp:129). ROM data is passed as a memory
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buffer and parsed by Cartridge::load (cartridge.cpp:18-31), which detects
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iNES headers (16-byte offset) and delegates to Board::load for mapper setup.
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The PPU generates its palette from a hardcoded color table in libretro.cpp
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(lines 20-37) with emphasis factor tables. No external palette file is loaded.
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System::init (system.cpp:62-66) only sets up the interface pointer and
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default input devices. No system ROM, BIOS, or firmware is loaded at any
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stage of initialization or cartridge loading.
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The core does not call RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY and has no
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file I/O for BIOS or firmware. FDS (Famicom Disk System) is not supported,
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so disksys.rom is not needed.
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No external BIOS or firmware files are needed.
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files: []
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analysis:
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bios_search:
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retro_load_game: "libretro.cpp:181-211 - loads cartridge data only, no BIOS"
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cartridge_load: "cartridge.cpp:18-31 - parses iNES header + ROM data"
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system_init: "system.cpp:62-66 - sets interface pointer, no ROM loading"
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system_power: "system.cpp:43-50 - powers subsystems, no file I/O"
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interface_init: "interface.cpp:17-20 - stores derived pointer, calls system.init"
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supported_mappers:
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- NROM
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- SxROM (MMC1)
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- UxROM
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- CNROM
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- TxROM (MMC3)
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- ExROM (MMC5)
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- AxROM
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- BnROM
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- GxROM
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- PxROM (MMC4)
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- FxROM (MMC4)
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- Bandai FCG
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- Konami VRC4
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- Konami VRC6
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- Konami VRC7
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- Sunsoft 5B
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fds_support: false
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filesystem_access: false
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system_directory_used: false
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