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.
88 lines
3.2 KiB
YAML
88 lines
3.2 KiB
YAML
emulator: Ardens
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type: libretro
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source: "https://github.com/tiberiusbrown/ardens"
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profiled_date: "2026-03-18"
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core_version: "Git"
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display_name: "Arduboy (Ardens)"
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cores:
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- ardens
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systems:
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- arduboy
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notes: |
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Ardens is an Arduboy FX simulator designed for profiling and debugging,
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ported to libretro. It emulates the ATmega32U4 MCU, SSD1306 OLED display,
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and W25Q128 external flash used by the Arduboy hardware.
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No BIOS or bootloader files are required. The core has all boot code
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compiled directly into the binary:
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- Caterina/Arduboy3K bootloaders for multiple hardware revisions (D1, D2,
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E2) are embedded as C arrays generated from .hex files via bin2c.py.
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Located in src/boot/boot_game_*.c and src/boot/boot_menu_*.c.
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The appropriate variant is selected at reset based on the configured
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device type (absim_arduboy.cpp:115-161).
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- Flashcart header (1536 bytes) is embedded in src/boot/boot_flashcart.c
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and written to the start of the W25Q128 flash image at init
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(absim_w25q128.hpp:14).
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- EEPROM (1024 bytes) and external flash (W25Q128, 16 MB) state are
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handled as save RAM through the libretro RETRO_MEMORY_SAVE_RAM
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interface, not as system files.
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The libretro port does not call RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY
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and never attempts to load any file from the system directory.
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The .info file declares firmware_count = 0.
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Supported ROM formats: Intel HEX (.hex) and Arduboy package (.arduboy).
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block_extract is set to true (the core reads archives directly).
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files: []
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platform_details:
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embedded_bootloaders:
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source_ref: "src/boot/_make.bat, src/absim_arduboy.cpp:115-161"
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variants:
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- name: "arduboy3k-bootloader-game-sda"
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array: "ARDENS_BOOT_GAME_D1"
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size: 8422
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device: "Arduboy FX (SDA)"
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- name: "arduboy3k-bootloader-menu-sda"
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array: "ARDENS_BOOT_MENU_D1"
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size: 8422
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device: "Arduboy FX (SDA)"
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- name: "arduboy3k-bootloader-game-devkit"
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array: "ARDENS_BOOT_GAME_D2"
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size: 8446
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device: "Arduboy FX DevKit"
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- name: "arduboy3k-bootloader-menu-devkit"
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array: "ARDENS_BOOT_MENU_D2"
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size: 8446
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device: "Arduboy FX DevKit"
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- name: "arduboymini-bootloader-game"
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array: "ARDENS_BOOT_GAME_E2"
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size: 8548
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device: "Arduboy Mini"
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- name: "arduboymini-bootloader-menu"
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array: "ARDENS_BOOT_MENU_E2"
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size: 8548
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device: "Arduboy Mini"
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notes: |
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All bootloaders are compiled from Intel HEX into C arrays at build
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time. The core selects the game or menu variant at reset depending
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on whether a flashcart image was loaded and the boot_to_menu config
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flag (absim_arduboy.cpp:142-158). The bootloader is written to the
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top of the ATmega32U4 program memory at the address defined by the
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BOOTSZ fuse bits (absim.hpp:811).
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embedded_flashcart_header:
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source_ref: "src/boot/boot_flashcart.c, src/absim_w25q128.hpp:14"
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array: "ARDENS_BOOT_FLASHCART"
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size: 1536
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notes: |
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Empty flashcart header written to the first 1536 bytes of the
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W25Q128 flash image during initialization. This is not a BIOS
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file -- it is the default flash content the Arduboy FX expects
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at the start of external storage.
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