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DjayBee

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About DjayBee

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  1. The best replacement seems to be POKEYMAX but AFAIK it currently cannot be built due to unavailability of its FPGA. Regarding using POKEY as a musical instrument you might have a look at MIDIjoy. It is actually not an external device containing a POKEY but an interface to use the Atari as a MIDI device.
  2. Real stores, selling stuff, often have less stock. 🤣
  3. The protection checks on tracks 15, 18 and 22 for skewing between sectors 1 and 2. All three tracks are tested independently of each other. There is no track alignment involved. Read sector 1, set RTCLOK+2=$00, read sector 2, read RTCLOK+2 and compare it against a track-specific threshold. Can this be affected by an inaccuracy?
  4. I know. I have flagged the copy protection as NTSC-only due to the timing of the sector skewing. But surprisingly Zarxx' tests with real PAL hardware showed that the copy protection there quite often succeeds, whereas in Altirra it fails more or less consistently. In both cases running on 400/800 has a higher rate uf success than running on an XL or XE (even if these are equipped with an OS-B).
  5. Yes. Releases are always complete archives.
  6. 27.06.2022 like the name of the torrent file suggests. Farb made many changes during the last weeks. This is also the state on which the upcoming update of my archive.org crack-repository will be based on. Disclaimer: I have not started to process it. Therefore I have no ETA.
  7. I withdrew that first one because my qBittorrent client had created it with .pad files. Due to this, it grew a lot in size and also some Bittorrent clients refused to start it. I hope this one works better and also for everyone: a8preservation-220627v2.torrent
  8. This is really weird. I just retried it in Altirra and got reliably lots of NOKs with either 810 or 1050 in standard and full emulation mode. But what I also recognized is that 400s and 800s seem to sometimes match the needed timing whereas XLs and XEs don't (even with OS-B). I guess that you ran the test on an 800.
  9. This is interesting. In Altirra the check itself still fails with the new ATX. Can you please run the Skew test from my test suite against Transylvania in your 1050 and post the timings you receive? CheckProtection111.atr Examples from Altirra with Transylvania in D2: and five runs of the test: PAL NTSC
  10. My first try in creating a torrent. 🤞 a8preservation release 2020-06-27 a8preservation-220627.torrent Related ClearMame file Atari 8bit Preserved Software 2022-06-27.dat
  11. The protection checks for sector skewing on three tracks. The first one involves sector 271. The timing unfortunately only works in NTSC. If you run it in PAL it reads these sectors veery often and often continues loading anyway, but I don't know if it then also works correctly or if it only does something.
  12. I have posted some pics on the ABBUC forum https://abbuc.de/forum/viewtopic.php?p=7218#p7218 XL, XE, ST and two arcade boards. The RGB pics all have some vertical bars which might have come from my not-so-good cables. Perhaps someone else can post more pics.
  13. This is certainly true but first we need a good dump of the data. These "magic flux dumps" can and will be easily converted into the standard ATR format and from there one can extract all files on the disk to a Mac or PC. There are several ways to do it and from there you can export into standard ASCII text files. Unfortunately inverse and graphics characters are always difficult to transfer as text to a modern Mac or PC. Therefore source code containing these is usually printed to a PDF which can then at least be viewed on modern computers. If you have a means to run Windows, you can use Memopad (https://x868k.com/apps/memopad/ ) for example. Hint: BASIC file names must have .BAS as extension to be recognized as tokenized BASIC code.
  14. This is the exact reason why I called for Kay Savetz in the first reply to this thread. He lives in Portland, has Mac experience, did successfully dump many disks including veeery rare ones and has scanned lots of stuff. And moreover Chris and Kay already know each other from an interview for the ANTIC podcast in 2013. Oh and btw., I would refrain from dumping these old disks with an Atari into ATR images. This is convenient but you have near zero possibility to to repair a flaky disk. When you make a flux dump, the disk is read five times and sometimes gone-bad sectors can be read without error at least once out of these. Even if it fails, we can recover quite often some data from these sectors. And it even is faster than doing it with the Atari.
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