¶ 
License
This core is under GPLv2.
¶ 
Compatibility
| RPI0/RPI1 | RPI3 | RPI4/RPI400 | RPI5 | ODROID XU4 | OGA/OGS/RG351 | PC | RG353 |
|---|---|---|---|---|---|---|---|
| ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
¶ 
Features
¶ 
BIOS
¶ List of mandatory bios
| Filename | Description | MD5 | Provided |
|---|---|---|---|
| ATARIBAS.ROM | BASIC interpreter | 0bac0c6a50104045d902df4503a4c30b | ❌ |
| ATARIOSA.ROM | Atari 400/800 PAL | eb1f32f5d9f382db1bbfb8d7f9cb343a | ❌ |
| ATARIOSB.ROM | Atari 400/800 NTSC | a3e8d617c95d08031fe1b20d541434b2 | ❌ |
| ATARIXL.ROM | Atari XL/XE OS | 06daac977823773a3eea3422fd26a703 | ❌ |
¶ Location
Put the bios like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 bios
┃ ┃ ┃ ┣ 📁 atari800
┃ ┃ ┃ ┃ ┣ 🗒 ATARIBAS.ROM
┃ ┃ ┃ ┃ ┣ 🗒 ATARIOSA.ROM
┃ ┃ ┃ ┃ ┣ 🗒 ATARIOSB.ROM
┃ ┃ ┃ ┃ ┣ 🗒 ATARIXL.ROM
¶ 
Roms
¶ Supported extensions
Roms must have the extension:
- .atr
- .atx
- .bin
- .car
- .cas
- .com
- .dcm
- .rom
- .xex
- .xfd
- .zip
This system supports compressed roms in .zip/.7z format. However, be careful, it is only an archive.
The files contained in the .zip/.7z must correspond to the extensions mentioned above.
Moreover, each .zip/.7z file must contain only one compressed rom.
¶ Location
Put the roms like this:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 roms
┃ ┃ ┃ ┣ 📁 atari800
┃ ┃ ┃ ┃ ┣ 🗒 game.zip
The roms using TOSEC format are highly recommended.
For more information about roms, go to this tutorial!
¶ 
Advanced configuration of the emulator
To be able to keep your custom configurations during an upgrade, we advise you to use our configuration override feature.
¶ Accessing to options
You can configure various options in two different ways.
- Via RetroArch menu:
┣ 📁 RetroArch Menu
┃ ┣ 📁 Core options
┃ ┃ ┣ 🧩 Name_option
- Via the file
retroarch-core-options.cfg:
┣ 📁 recalbox
┃ ┣ 📁 share
┃ ┃ ┣ 📁 system
┃ ┃ ┃ ┣ 📁 configs
┃ ┃ ┃ ┃ ┣ 📁 retroarch
┃ ┃ ┃ ┃ ┃ ┣ 📁 cores
┃ ┃ ┃ ┃ ┃ ┃ ┣ 🧩 retroarch-core-options.cfg
¶ Core options
| Options | Options values | Variables (for configuration override) | Variables values |
|---|---|---|---|
| Video Standard | NTSC ✅ / PAL |
atari800_ntscpal |
NTSC / PAL |
| Hi-Res Artifacting | None ✅ / blue/brown 1 / blue/brown 2 / GTIA / CTIA |
atari800_artifacting |
none / blue/brown 1 / blue/brown 2 / GTIA / CTIA |
| Internal resolution | 336x240 ✅ / 320x240 / 384x240 / 384x272 / 384x288 / 400x300 |
atari800_resolution |
336x240 / 320x240 / 384x240 / 384x272 / 384x288 / 400x300 |
| Controller Hacks | none ✅ / Dual Stick / Swap Ports |
atari800_opt2 |
none / enabled / Swap Ports |
| Activate Paddle Mode | Désactivé ✅ / Activé |
paddle_active |
disabled / enabled |
| Paddle Movement Speed | 1 / 2 / 3 ✅ / 4 / 5 / 6 / 7 / 8 / 9 |
paddle_movement_speed |
1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 |
| Digital Joystick Sensitivity | 5% / 10% / 15% / 20% / 25% / 30% / 35% / 40% / 45% / 50% / 55% / 60% / 65% / 70% / 75% / 80% / 85% / 90% / 95% / 100% ✅ |
pot_digital_sensitivity |
5 / 10 / 15 / 20 / 25 / 30 / 35 / 40 / 45 / 50 / 55 / 60 / 65 / 70 / 75 / 80 / 85 / 90 / 95 / 100 |
| Analog Joystick Sensitivity | 5% / 10% / 15% / 20% / 25% / 30% / 35% / 40% / 45% / 50% / 55% / 60% / 65% / 70% / 75% / 80% / 85% / 90% / 95% / 100% ✅ |
pot_analog_sensitivity |
5 / 10 / 15 / 20 / 25 / 30 / 35 / 40 / 45 / 50 / 55 / 60 / 65 / 70 / 75 / 80 / 85 / 90 / 95 / 100 |
| Analog Joystick Deadzone | 0% / 3% / 5% / 7% / 10% / 13% / 15% ✅ / 17% / 20% / 23% / 25% / 27% / 30% |
pot_analog_deadzone |
0 / 3 / 5 / 7 / 10 / 13 / 15 / 17 / 20 / 23 / 25 / 27 / 30 |
| Retroarch Keyboard type | poll ✅ / callback |
atari800_keyboard |
poll / callback |
| Atari Keyboard Defines | informational ✅ |
keyboard_defines |
informational |
| Atari System | Atari 400/800 (OS B) ✅ / Atari 800XL (64K) / Atari 130XE (128K) / Modern XL/XE(320K Comby Shop) / Modern XL/XE(576K) / Modern XL/XE(1088K) / Atari 5200 Super System |
atari800_system |
400/800 (OS B) / 800XL (64K) / 130XE (128K) / Modern XL/XE(320K CS) / Modern XL/XE(576K) / Modern XL/XE(1088K) / 5200 |
| Internal BASIC (hold OPTION on boot) | Disabled ✅ / Enabled |
atari800_internalbasic |
disabled / enabled |
| SIO Acceleration | Disabled / Enabled ✅ |
atari800_sioaccel |
disabled / enabled |
| Boot from Cassette (Reboot) | Disabled ✅ / Enabled |
atari800_cassboot |
disabled / enabled |
| Autodetect Atari Cartridge Type (Restart) | Disabled ✅ / Enabled |
atari800_opt1 |
disabled / enabled |
¶ 
External links
- Source code used: https://github.com/atari800/atari800/
- Libretro documentation: https://docs.libretro.com/library/atari800/