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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.
47 lines
1.7 KiB
YAML
47 lines
1.7 KiB
YAML
emulator: Arduous
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type: libretro
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source: "https://github.com/libretro/arduous"
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profiled_date: "2026-03-18"
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core_version: "0.1.0"
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display_name: "Arduboy (Arduous)"
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cores:
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- arduous
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systems:
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- arduboy
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notes: |
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Arduous is an Arduboy emulator built on simavr (ATmega32U4 AVR simulator)
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with SSD1306 OLED display emulation, ported to libretro. It is distinct
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from the Ardens core, which is a separate Arduboy emulator.
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No BIOS, bootloader, or system files are required. The core operates as a
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pure AVR simulator:
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- The game content (.hex Intel HEX format) is parsed at load time via an
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in-tree ihex reader (arduous.cpp:60-166) and written directly into the
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simavr flash memory at the address specified in the hex file
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(arduous.cpp:189). No separate bootloader is loaded.
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- The MCU is hardcoded to atmega32u4 at 16 MHz (arduous.h:70-71).
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simavr handles CPU initialization internally via avr_make_mcu_by_name().
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- A commented-out loadFirmware() function (arduous.cpp:22-29) suggests
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ELF firmware loading was considered but never implemented.
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- EEPROM (1024 bytes), system RAM, and VRAM are exposed via the libretro
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memory interface (RETRO_MEMORY_SAVE_RAM, RETRO_MEMORY_SYSTEM_RAM,
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RETRO_MEMORY_VIDEO_RAM) but are not loaded from external files.
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- The core never calls RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY. The
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retro_load_game() function only reads the content data buffer passed
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by the frontend (libretro.cpp:108-110).
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- RETRO_ENVIRONMENT_SET_SUPPORT_NO_GAME is set to false (libretro.cpp:123),
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meaning a game ROM is always required.
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Supported ROM format: Intel HEX (.hex) only. The valid_extensions field
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lists "hex". A TODO comment mentions .arduboy ZIP support but it is not
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implemented.
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files: []
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