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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 I, Peter Dell aka JAC! am one of the members ever since. I have created this website 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. To learn more about me and what I'm doing, check out this personal interview that I gave for ANTIC - the Atari 8-bit podcast.
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I just finished reading the Hints & Tips for Video Game Pioneers book by Andres Hewson and Rob Hewson of the former Hewson Consultants. The book is very well-written and entertaining. It really brings back the memories of when it all started on our beloved 8-bit machines. With all the background information and quotes and interviews of many different people involved, it provides great insights. Many of the mentioned games I've not even heard of before. I absolutely recommend you buy and read it.


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The "AtariSIO tools" are a set of command line tools to handle "ATR" and "COM/XEX"files. Mathias Reichel created them and they are available on his website http://www.horus.com/~hias/atari. Since I am now familiar with git and Git Hub and own an Intel & Apple Silicon macOS machine and a Linux VM, I've created binary builds and uploaded them to the WUDSN Tools Git Hub repo for your convenience.
Source: https://github.com/HiassofT/AtariSIO
Binaries: https://github.com/wudsn/wudsn-ide-tools/tree/main/ATR/AtariSIO/tools
- adir displays the directory of an ATR disk image.
- ataricom displays the details of an Atari COM/XEX file.
- dir2atr creates an ATR disk image from a folder of files.
The binary versions have been compiled by
- Peter Dell (linux-86-64, macos-aarch64, macos-x86-64, windows-x86-64)
- Sanny from AtariAge (macos-ppc).
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R.I.K. organized another edition H.A.T.Z. and I had the luck of being there for full 3 days. On day one I started with checking all the Atari computers I had brought with me. Then Roland Wassenberg and I reconstructed the type-in assembly game "Gunfight". Lots of fun with the assembly source not matching and the assembly listing is even different from the printed memory dump. Obviously, the author didn't even use the assembler described in the book. On day two I managed to create a new version of The!Cart Studio that contains several fixes since the last stable release in 2020. I also managed to add support for the new Boot Manager version from 2022 which is used by all Homesoft disk compilations recently. The rest of the day I spent coding in Mad Pascal and Mad Assembler to get the graphics and colors rights in a "soon" to-be-released game by R.A.F. On day three I managed to make The!Cart Studio work again with Java 8, so existing users can use it without problems. Thanks to Tron04 for the quick feedback and testing. Then I created a small tool in HTML and Javascript to convert texts for Mad Assembler. With this, I'll be able to improve the built-in help texts of MADS. Ultimately I spent the rest of the day with enjoying the never-ending thrill of using tape drives. It is really unbelievable what can go wrong - EVERYTHING! Nevertheless, it was a great time with lots of fun. On day four, Tigerduck and I played a few rounds of Robix (by Raster) and Scorch (by Pirx and the team). And ultimately with the support from the guys from Pigwa my video tutorials are now all also available there for download - just in case youtube goes down one day :-)
Thanks to everybody who participated, this was a lot of fun. See you at Fujiama!

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With almost 40 years of experience in computers and writing software, the essence for me is that architecture should follow common sense and reality. This is frequently contrasted by "this is the one-serves-all solution" hypes and buzzwords created by either youngsters or marketing people. I recommend reading the following two articles to both groups of people.
- Amazon: Scaling up the Prime Video audio/video monitoring service and reducing costs by 90% (PDF), also online.
- David Heinemeier Hansso: Even Amazon can't make sense of serverless or microservices (PDF), also online.