Developer ZX-81 visited the QJ.NET Forums earlier to announce the release of PSP7800 version 1.1.3. As its name implies, this homebrew application is an emulator of the Atari 7800 ProSystem game console that was released back in 1984.

ZX-81's app is in turn based on the ProSystem emulator originally developed by Greg Stanton for the Windows platform. Here are the latest changes for version 1.1.3:

• Sound improvement, new prosystem.dat file & NTSC Palette fix by Carpy (aka Danno)
• A thumbnail image is now displayed in the file requester
• while selecting any file with the same name of a previously saved game.
• It might be very helpful to recognize that game later if you have thousand different games in your rom folder !
• Auto-fire uses now the key mapped as Cross button instead of FIRE1 (games such as Xevious use FIRE2 for fire so it is better this way)
• In the emulator menu you can go directly to keyboard and settings menu using the L-Trigger key.
• Fix IR keyboard issue with fw >= 3.80 for FAT PSP
• Fix random black screen issue
• Bug fix in the low battery watchdog
  

Full details on installing and running this emulator are available in the readme included with the file bundle. Enjoy the download, and be sure to visit  ZX-81's Homebrew Releases section of the QJ.NET Forums.

Download: PSP7800 v1.1.3 (fw 4.xx)
Download: PSP7800 v1.1.3 (fw 1.50)
Download: PSP7800 v1.1.3 (source code)
Visit: QJ.NET PSP Development Forum