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JS7800

On the record

Browser requirements
JS7800 requires an up-to-date modern browser such as Chrome, Firefox, or Safari and a capable system for smooth operation.github.com · read 5 Oct 2026
Cartridge loading
Users can drag and drop local files or remote file links, and the emulator supports cartridge lists.github.com · read 5 Oct 2026
Cartridge support
It includes enhanced bank switching and cartridge detection.github.com · read 5 Oct 2026
Controls
It supports customizable keyboard mappings and gamepads, including dual-analog controls for Robotron-style games.github.com · read 5 Oct 2026
Display
It supports fullscreen, multiple aspect ratios, and enabling or disabling video filters.github.com · read 5 Oct 2026
Documentation
Integrated documentation is available through the Help/Information button below the emulator screen.github.com · read 5 Oct 2026
Expansion hardware
It supports the Atari 7800 Expansion Module (XM), enhanced bank switching, and cartridge detection.github.com · read 5 Oct 2026
Expansion Module
The emulator supports the Atari 7800 Expansion Module (XM).github.com · read 5 Oct 2026
High scores
It supports global high score tracking for compatible games.github.com · read 5 Oct 2026
License
The repository identifies the project license as GPL-2.0.github.com · read 5 Oct 2026
Light gun
It supports light gun input through a mouse.github.com · read 5 Oct 2026
Loading games
Users can load local files or remote file links by drag and drop, and use cartridge lists.github.com · read 5 Oct 2026
Mobile
The README lists mobile support as a future consideration and says it is partially available in webЯcade.github.com · read 5 Oct 2026
Mobile status
The README lists mobile support as a future consideration and says it is partially available in webЯcade.github.com · read 5 Oct 2026
Purpose
JS7800 is an enhanced JavaScript port of the ProSystem Atari 7800 emulator, originally developed by Greg Stanton.github.com · read 5 Oct 2026
Save states
The project README says save/load state support is available through webЯcade, and the 0.0.5 change log says save states are only accessible there.github.com · read 5 Oct 2026
Support limit
The README lists network-based multiplayer and paddle controller support as future considerations.github.com · read 5 Oct 2026
Support status
The README lists paddle controller support and network-based multiplayer as future considerations.github.com · read 5 Oct 2026

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