Welcome to BupSystem

BupSystem is an Atari 7800 ProSystem emulator. It was originally written to assist in the development and distribution of Rikki & Vikki, but can run most other software for the platform.

As of writing BupSystem is closed source and only available for Microsoft Windows.

This program is intended as a development tool for and preservation of the ProSystem architecture. While it can be used to run commercial software I will neither assist nor prevent users from doing so. You are on your own.

More information can be found in the included help file.

Emulated Hardware
  • Sally, Maria (NTSC or PAL), TIA, RIOT, and the BIOS
  • Mappers : 16K, 32K, 48K, SUPER, SOUPER, ABSOLUTE, and ACTIVISION
  • Expansion Modules : XBoard
  • Cartridge Audio : Pokey, BupChip
  • YIQ Color Generation
  • One and Two Button Joysticks
  • Light Pens and Light Guns

Minimum Requirements
  • 1.2GHz Intel Pentium III
  • 256MB RAM
  • Microsoft Windows 95 + DirectX 7.0
  • DirectDraw or Direct3D Compatible Graphics Accelerator
  • DirectSound Compatible Audio Device

Current Version
BupSystem 2020-5-27 Added :
  • Separate menu item icons for Aero themes.
  • Support for using the menu in Full Screen Mode.
  • Optional confirmation when erasing the cartridge history.
  • Multiple file support for Drag 'n Drop.
Cleanup :
  • All menu item icons redrawn in monochrome.
  • Custom images are a little more considerate of system metrics.
  • Disabled menu items could still be triggered in Full Screen Mode using their accelerator keys.
  • Adjustments in the Color Dialog are now shown whether or not a cartridge is loaded.
  • Disabled mouse cursor autohiding while the Color Dialog is visible.
  • Corrected longstanding GDI Resource leaks in the Input and Joystick Disconnected Dialogs.


All content by Osman D. Celimli unless otherwise noted.
Not all of said content guaranteed to be useful. Some is probably quite old and dumb.
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