Welcome to the WUDSN ursel home page

WUDSN ursel - or short WUDSN - is a demo group founded in 1991. There is an explanation why the group and the site are named like that, but that's a different story you can find in the FAQ. For the time being it should be sufficient for you to know that me, aka JAC! am one of the members ever since. I have created this web site to offer my tools and productions and to share the fun I have had for more than 20 years now with my Atari-8 bit computer and other classic computers.

Programming the Atari 2600 Video Computer System (Live)

At the end of January I delivered a 35 minutes presentation about the Atari Video Computer System (VCS, Stella, 2600), its history and architecture and how to code for it using WUDSN IDE. Especially the live coding part was very appreciated by the audience. Changing a single line of code and seeing immediately what happens brings you as close a possible to the machine. The recording of the presentation is now available on my youtube channel. The slides (PDF) and the sources can be downloaded from here. I recommend you open the slides in parallel, so you can read the content and code correctly. Thanks to Julien for the event and SvOlli for the slide templates.

Programming the Atari 2600 Video Computer System (Live)

New zero installation distribution of WUDSN IDE for 32-bit

I've received requests to also provide a 32-bit version of the zero installation distribution. And after figuring out how I can do that without doing everything twice, it's ready for download: wudsn-ide-win32.zip. I have no real 32-bit hardware to test it, so please provide feedback. Thanks also to Timothy, Kevin and Fredrick for the feedback and using WUDSN IDE on Mac OS X. I have extended to FAQs accordingly. 

New FAQs:

  • Why is the "Assembler" section not visible in the preferences? 
    If the WUDSN IDE specific sections and features are not visible after a successful installation, you are probably using an outdated Java version. This seems to be a common problem on Mac OS X. Make sure you have Java 1.7 installed and that Eclipse is started using that version. Java 1.6 is out of maintenance since 2013/02 .
  • Why do I get "Unable to read repository at ... Read timed out" when accessing the update site? 
    This error message indicates the the Eclipse program is somehow blocked from accessing the site. If you are behind a proxy server, check the general proxy server setttings in the Eclipse preferences. If you use a firewall or internet security tool, make sure "Eclipse.exe", "java.exe", "javaw.exe" or the corresponding program on your host platform are allowed to cannot to the internet. Maybe you have to change the settings, so you are prompted to allow access interactively