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Peri Noid

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About Peri Noid

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  1. I think, overlays are not necessary but depending on a game, they may improve the gaming impression a lot. For instance, VecPatrol - playing with an overlay is much more impressive. For me. But... if the ambient light is too bright - it is not. So, there are many factors here. I had no opportunity to see a UV overlay with my own eyes.
  2. You need to switch the drive to DS0:, otherwise it doesn't work. It's usually a simple thing, just one jumper to be soldered.
  3. Do you have any hint how to combine Diamond cart AND U1MB+Side3 mounted Diamond GOS floppies? I wonder, if it's possible...
  4. Now I know one could do it - I recently bought a drive for a completly different system with a switch 40-80 tracks. There's one more thing about 80 track drives, when applied to 40 track disks - 40 track drives have wider heads and "draw" wider tracks (what I've been told). So although it is pretty safe to read such a floppy in an 80 track drive, modifficaitions can be problematic if a 40 track drive is then used.
  5. I was writing about 5.25" mechs. Such a drive no longer reads SD, MD nor DD disks. Actually, it cannot read any 40-track disk, neither single nor double sided. It's becouse it actually uses only its first 40 tracks. The firmware cannot detect 40-track disk and set stepping to 2 (then it could read them but since stepping is always 1 - it cannot). And if we talk about 720KB format - XF551 has a pretty unique way of track addressing - it first uses only head 0 (so the bottom side of the disk) tracks 1 to 80 and when it reaches track 80, it switches to head 1 (the upper part of the disk) but in reversed order (tracks 80 downto 1). I know only two other drives which are capable of 720KB on a 5.25" drive - Karin drive and Toms 720. Karin uses the same way of track addressing as PCs - so track 1 head 0 - track 1 head 1 - track 2 head 0 - track 2 head 1... And so does Toms, although it can recognize more disk formats (for instance standatd 360KB XF551 and any other standard Atari format). None of them can read 720KB disk formatted with XF551. The same applies to a 3.5" version of XF551 but since it's actually pretty unique, nobody cares (only Karin Drive can be implemented to use 3.5" disks and then it's not XF551 compatible but it's a homebrew drive and it makes no difference anyway).
  6. With Hyper-XF 3.5" ROM (ver.B) you can use both 3.5" and 5.25" HD mechs and format the disks to 720KB. The problem is, such a drive is no longer compatible with other Atari disk formats. I have two 3.5" drives like this and I also played with a 5.25" one.
  7. According to my knowledge (confirmed with observations of 2 faulty drives) your drive has its head(s) dead. You can try and format a floppy in a single-sided format to check, if the lower head (0) still works - if yes, you can at least read standard SD/ED/DD disks. But I guess it's bad. You can measure the ribbons going from the head to the drive's motherboard, it is usually pretty easy to see, that a head is faulty (not always as with one of my drives but - usually is). The way to fix it is to replace the mech with another one. Unfortunately, only the original Mitsumi D503 drives fit the case - they are 2cm shorter than regular DD drives. It is possible to push a longer drive but it requires physical modification of the power section and no longer looks original 😞 I did so in one of my XF551 using an Alps DD drive - I prefered it working than fully original.
  8. FujiNet - disk images can be mounted remotely with the WWW interface. SDrive Max - with the screen. I have no idea what about standard SDrive without an LCD screen.
  9. Just one remark: it may happen, that when you put a faulty GTIA in another machine, it will work correctly. I had duch an issue - a colleegue had an 800 with a GTIA showing faulty behavior. I took it out and placed in my 800XL - and it was fine there. On the other hand side, I had several XE-originated GTIAs, which were also broken in an 800XL. So it may be worth checking.
  10. Nicely done. Pretty difficult, though. There are some elements which make it too difficult - jumps over spikes, which require almost pixel-perfect accuracy, for instance. The problem is, control in Bruce Lee never was too accurate.
  11. I'm sure, it should be considered a proof-of-concept. Who knows, what can be achieved with it.
  12. What is so speciffic in it? I played the original 1.0.0 version from my AVG without problems. It seems to be a MaxFlash 1MB cart type. [Edit] Oh, I can see - saving. Sorry :-)
  13. If we talk about Side2 or Side3 then it's possible to upload it by booting the ATR with the firmware from the loader with SDX disabled (switch in the Loader position) and when the flasher starts, moving the switch to SDX position without booting the machine. Works fine. So it may be a reason to make the image bootable.
  14. Did you watch FlashJazzCat's videos on fitting these cards?
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