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 I, Peter Dell 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. 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.

Silly Venture 2k19 Video Invitation

Once again Grey made it! Cool to see the original designer RJ Mical promote the party. Massive thumbs up. I've never owned a Lynx, but the hardware combination is really nice. I always thought it was using a 65816 - until Heaven told me it also has a 6502 ... and beat me with releasing a demo for it first! Visit http://www.sillyventure.eu to read more about the party - and see you all in Gdansk!

Silly Venture 2k19 Video Invitation

Dell's Kitchen

Some time ago my wife showed me some funny pixel art she had found on Pinterest. So I grabbed my little daughter's colored ironing beads and here's the result which I now hanging on my kitchen wall :-)

The!RamDisk released

Besides its 128 MB of Flash ROM, The!Cart has a built-in 512 KB RAM chip. This chip was required because the physical bank size of the Flash chip is 64 KB, i.e. only full 64 KB blocks can be erased. So without the built-in RAM, a standard Atari 48 KB or 64 KB computer would not have able to update The!Cart. Using the built-in RAM of The!Cart for other purpose has always been somewhere on the very long todo list, but time did not allow me to pursue that aim.

Luckily, in 2019, my fellow Atarian Holger Janz received his The!Cart and found the idea of writing a RAM disk driver for it encouraging. He likes to use the real hardware and real programming cartridges, and we all know that having a RAM disk there is a very useful thing. He first went into the details of DOS 2.5 and existing RAM disk implementation for it and after some weeks he released it to the public. Support for other DOS versions is planned.

The video below shows how The!RamDisk can be used. The detailed documentation of The!RamDisk including ready-to-use disk images, source code, and test programs are available at https://github.com/HolgerJanz. You can follow the development, ask questions and give feedback via the A.B.B.U.C. thread (German) or the AtariAge thread (English).