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The Latest Version of ColEm is 3.2
The latest release, published on October 15 2014, comes with support for cheat codes, in AAAA-DD and AAAA-DDDD formats, and the Cheat Hunter tool for finding your own cheat codes in any game. To start searching for cheat codes, press
select "Search Cheats". I am no longer supporting MSDOS, Symbian,
Maemo, and Meego ports, due to the demise of the respective platforms.
Older ColEm versions for these platforms are still available from this
web page though. The free Android port can be downloaded from
If you like it, you can also download the
with more features. Please, give it a try and report any encountered
problems in the
ColEm supports both standard and SuperAction controllers, including the spinners (controlled with mouse movement). I have also started adding Coleco Adam emulation but it is not finished yet. Please see the documentation for the full list of changes and additions.
What is ColEm?
While developing fMSX, I got a request to take a look at the ColecoVision videogame console. The request contained a short document on the ColecoVision internals, from which I found that ColecoVision was not much different from MSX. Thus, I got to work and in a short while made a ColecoVision emulator, later known as ColEm.
From the very beginning, ColEm has been an open rather than commercial project, so its sources are freely available for those who would like to learn from them. Thus, you can use ColEm sources for free, as long as your project is not commercial and you are making a clear reference to me, Marat Fayzullin, as the author. Please note that while ColEm source code is open, it is not available under GPL license terms.
Due to its simplicity, ColEm has been ported to many platforms and used as a study case by those who would like to write an emulator. If you find a bug, have an idea on the further ColEm improvement, or would like to port ColEm to a new platform, please, let me know.
ColEm is written in portable C language and will work on any sufficiently fast computing platform, be it a computer, a videogame console, a PDA, a cell phone, a DVD or MP3 player, or even a digital camera. If your company considers using ColecoVision emulation in its products, you can license the ColEm source code from me. I am also available for consulting work in the software emulation, embedded programming, and other fields. See my resume and contact me if interested.
|At this site|
|ColEm 3.2 Windows free for all Windows versions|
|ColEm 3.2 Linux portable source code|
|ColEm Android for Android 2.2 or newer (also see free version)|
|ColEm 2.6.1 Maemo for Nokia N900 tablets (or install directly to device)|
|ColEm 2.6 Symbian for Nokia S60 3rd Edition (see instructions)|
|ColEm 2.6 Symbian for Sony Ericsson UIQ3 (see instructions)|
|ColEm for Nintendo Wii by Chris S|
|EMUL8 Discussion Group discuss your problems here|
|EMUL8 Page documents, tools, libraries, Z80 core, etc.|
|The Address Book (look up email addresses here)|
|ColEm Macintosh by John Stiles|
|ColEm PSP by Akop Karapetyan|
|ColEm OpenPandora by Michael Mrozek|
|ColEm OS/2 by Darrell Spice Jr.|
|ColEm PalmOS5 by Christian Prinoth|
|ColEm Acorn by David McEwen|
|ColEm PocketPC by Stuart Russell|
|ColEm Dreamcast by Marc Dietrichstein|
|ColEm PC98 (in Japanese)|
|ColEm Xfree86-OS/2 by Krister Bergman|
Network Play Feature
River Raid (with scanlines)
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