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• demotool Linux Elfling by Calodox
• Now with 64-bit ELF support. But since it creates binaries that are ~200 bytes larger (that ELF header does get awfully big) there is no good reason to use it...
• isokadded on the 2014-11-29 08:14:33
• 4k ZX-81 rezurrection by Calodox
• Try this for a video http://www.youtube.com/watch?v=ztkQMjdPtuQ. Not my recording, but the first I found where someone actually had the original version running on the real machine!
• isokadded on the 2011-05-19 19:09:42
• wild Wild Laseriter by Drifters [web] & Calodox & Tristar & Red Sector Inc. [web]
• The mechanics were composed of 100% LEGO, the ultimate building blocks for building perfectly unstable robotics systems, hence the impression that the OHP suffered from advanced Parkinson's disease. We actually had some very neat vector drawing code, but the trembling just reduced any fine figure to a bag of very messed up strings.
  We also used a modded OHP with LED lighting instead of the traditional lightbulb, allowing us to control the intensity of the light continuously throughout the demo.
• isokadded on the 2009-09-04 10:47:53
• 4k ZX-81 rezurrection by Calodox
• OK, that file is the version that Bodo Wenzel modified - not my original. My original is a 5-part intro for 1k ZX81, and it does not (and I really mean not) support rampacks or extensions of any kind. It will only run on original european 1k ZX81 machines. The hi-res modification is only required for rampacks, without a rampack the weird refresh-read wiring is already present on the mainboard :-) - i.e. the 1k machine is already hi-res enabled by default.
• isokadded on the 2008-10-09 19:21:09
• 4k ZX-81 rezurrection by Calodox
• I don't have the slightest idea what that fixed version is about - I only ever released the one you get in the original download. Maybe it is the one that Bodo Wenzel repacked for 16k ZX81, maybe not... Whatever... All required wav files are in the original download. There are no .p files since the intro uses a speedloader (Yes! Really!). The speedloader is actually necessary since it fits in 54 bytes - less than what would be taken by the ROM variables if I used the ROM loader (hehe, not only 10 times faster than original loading speed, but even a precious byte saver :-) ). The tool to create wav files from the binaries/source is also in the original package. The only other version I have is a private version that was used for various shows that runs in a loop (i.e. a one hour wave file that loops the demo for the duration of the CD)
• isokadded on the 2008-10-08 00:36:48
• 4k ZX-81 rezurrection by Calodox
• Hi-res is full software, as usual, since the ZX81 does not really have any display hardware :-) Resolutions depend on the displayed effects: the 'copper' bars are 256x192, the first part scroller is more like 320, although the single clock cycle shift used in the shadow means that pixels are active for almost all 414 columns available on a single scanline. The octahedra are rendered to a much smaller framebuffer, which is then repeated three times and moved around. The final part does 192x96, with every second scanline used for decompressing the one coming after that since there is not enough memory for storing the whole image :-) The starfield technically doesn't even have a resolution, since it is just single-byte framebuffers (i.e. 8 pixels) that are placed using a function that takes the number of clock cycles it should take to execute as a parameter. The ZX81 is really a wonderful machine for playing around with synchronous programming due to its lack of any really useful hardware - the processor essentially drives the electron beam in real time through a shift register.
• isokadded on the 2008-10-07 10:45:27
• 4k ZX-81 rezurrection by Calodox
• It does run very nicely on a real machine - and was shown running on real hardware at quite a few public events since its release. For example, here is a photograph of the demo running at the Imaging the Future event in 2004 (the audio data is read from that crappy audio CD player lying on the TV, this is just much more reliable than those crappy tapes). Just do not forget to remove any rampacks or other useless extensions before attempting to load this...
• isokadded on the 2008-10-06 22:18:26
• demopack Windows collektikum by Calodox
• Shifter: I am very afraid that I actually managed to release a version requiring dxdx9_32 :-( I should probably consider doing a rerelease with some older variant...
• isokadded on the 2007-05-10 12:23:27
• demopack Windows collektikum by Calodox
• Shifter: OK, this has me quite mystified since this thing was actually developed on XP, and just tested under Vista to make sure it works... Are you sure you don't have the traditional missing D3DX problem? If that is not the case, I'm interested in more details, since I really would like this thing to run just about everywhere.
• isokadded on the 2007-05-10 11:20:52
• 1k Linux Windows flow2 by Auld
• Neat!
• rulezadded on the 2007-05-03 22:27:23