v2026.04.02/emulators/bnes.yml

emulator: bnes
type: libretro
core_classification: frozen_snapshot
source: "https://github.com/libretro/bnes-libretro"
upstream: "https://github.com/Alcaro/bsnes-gc"
profiled_date: "2026-03-23"
core_version: "v083"
display_name: "Nintendo - NES / Famicom (bnes)"
cores:
  - bnes
systems:
  - nes

notes: |
  Frozen libretro port of byuu's higan v083 NES module by Ryphecha. Experimental,
  not maintained. ROM data passed via retro_load_game memory buffer
  (libretro/libretro.cpp:181-184). Cartridge::load parses iNES headers and
  delegates to Board::load (nes/cartridge/cartridge.cpp:18-31). System::init sets
  up the interface pointer and default input devices (nes/system/system.cpp:62-66).
  No system directory access. No FDS support. Palette hardcoded
  (libretro/libretro.cpp:20-37). .info declares no firmware (firmware_count absent).

files: []

analysis:
  bios_search:
    retro_load_game: "libretro/libretro.cpp:181-211 - loads cartridge data only, no BIOS"
    cartridge_load: "nes/cartridge/cartridge.cpp:18-31 - parses iNES header + ROM data"
    system_init: "nes/system/system.cpp:62-66 - sets interface pointer, no ROM loading"
    system_power: "nes/system/system.cpp:43-50 - powers subsystems, no file I/O"
    interface_init: "nes/interface/interface.cpp:17-20 - stores derived pointer, calls system.init"
  fds_support: false
  filesystem_access: false
  system_directory_used: false