ProSystem is an emulator for the Windows operating system that will allow you to play Atari
7800 video games on your PC. An emulator is a program that has the ability to imitate another
program, device, or computer. The ProSystem emulator imitates the Atari 7800's CPU, video, audio,
joystick controls, etc. Before you can use the emulator, you will need to obtain rom images that
are compatible with the Atari 7800. The rom images are the actual data that is loaded into
the emulator which allows you to play the game. The rom images can be downloaded from various
sources on the internet. Please don't ask me for rom images.
The ProSystem emulator was written in the C/C++ language and uses the Windows API and
DirectX to help emulate the display, sound and input. It emulates both the NTSC and
PAL consoles. Please see the documentation for a description of the other features.
To start using the emulator, download the ProSystem.zip file and unzip it to a directory on your
local drive. Execute the ProSystem.exe file to start the emulator. Please read the license
and documenation included with the software before using the emulator.
Leonis provided the latest update to the ProSystem emulator. Version 1.3 has the following changes:
- Modified snapshot engine (Take screenshots by pressing F12 without any prompt)
- Main menu changes
- Text moved to resource (for future translations)
- Updated palette
- Sample rate property/configuration fixed
- Other optimizations
ProSystem 1.3 Source
Brian Berlin has another update to the ProSystem emulator. Version 1.2 supports the following:
- Implemented INTFLG (Beef Drop now works)
- Added Command Line parameters
- Added mapping of Exit and Menu Enable keys
- Added storing of Menu Enable parameter
ProSystem 1.2 Source
The version 1.1 supports joysticks and fixes issues with the palette. Thanks Brian Berlin for the
ProSystem 1.1 Source
ProSystem 1.0 Source
ProSystem Emulator was developed by Greg Stanton. To contact Greg Stanton about the software,
please read the documentation to obtain an email address. Thanks.
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