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ivop

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Everything posted by ivop

  1. Ah, I completely missed the lower wires. 3,6,8,4,1,2. Oh well, I tried. And the joystick cables were not on the first picture Edit: And the blue wire (2) is obscured by a cap at the top connections as well
  2. Some more observations: The blue wire has an A on the silk screen. I suppose that's the antenna? On the right, there's 3, 6, 8, 4, 1, which might connect to the SIO bus. Data Input, Ground, Motor Control, Ground, Clock Input. The white/black and black wire might be for (an extra?) power supply. Jack for direct output on line level? Don't know. It might indeed be an Atari/SIO controlled radio receiver for WEFAX or something like that.
  3. Thanks! We just crossed eachother Edit: But two people coming to the same conclusion is better than one Now what's that last board...
  4. Eight times NEC D416C = 16K * 1 bit Eight times Mostek C014331-09 = 16K * 1 bit Don't know why there are six LS logic chips on the board, but I'm not familiar with the 800 buses. But a 32kB RAM card it is Edit: I suppose 8121 is week 21 of the year 1981
  5. Which one? This is 128kB RAM. This looks like a 16kB RAM card. NEC D416C is 16K * 1 bit. But why so much logic? There must be more to this. Sorry for the grill. The switches probably switch banks of the card below: This looks like a heavily modified Newell ROM card. This indeed looks like a real time clock, with battery. The MC6821P is a PIA. No idea about this, but there's a 3.5mm jack. Input? (sampler) Or output? Edit: and I hate it when they removed the markings of the chips!
  6. Very cool! 👍 It's exactly on the line. Perhaps it would be nice to have a line at the bottom silkscreen, too. That would make it easier to use a boxcutter instead of a hacksaw or dremmel.
  7. I don't think a single PCB could work, because the functions keys are mounted slightly lower. If I were you, I'd change the spacebar to 5u and add two 1u keys left, and two 1u keys right, and route them as F1, F2, Spacebar, F3, F4. The XL Rev. 2 OS still supports the 1200XL keys.
  8. Wow. Just wow. How many hours you estimate this took to print?
  9. It seems you confuse streaming audio out of your Atari to the internet with streaming MIDI data in to the Atari. We were talking about the latter, which is currently not possible with the existing software.
  10. I thought he meant SIO errors during loading. But a MIDI file not playing right on the connected MIDI device can indeed have multiple reasons, as you mentioned. Also, a MIDI file that is not aimed at GM (General Midi) but older non-standard hardware won't play correctly on a GM output device.
  11. Yes it does. It means you do not stream in real time. You load the MIDI file to extended memory first, and then you play it. I have no idea why you get SIO errors. Maybe you should lower your Pokey divisor if the capacitors are still (as per stock specs) on your SIO bus?
  12. Which software did you use? I don't have to remember, because SIO2MIDI is the successor of the XLD implementation, which was backported to the XEL, that was originally based on my MIDIMuse (I lobbied for that, and in the end it was simplified with an MCU), which was based on a German design in the late nineties, which was based on MIDI Mate and/or MIDI Max from the eighties. TL;DR I know how this works with the motor control line Loading the whole file in extended memory and then start playing is not real time streaming, so I'm very curious about which MIDI player you used that can actually stream in real time, i.e. load blocks of data on the fly from a true SIO device while already playing the MIDI file.
  13. Were they first loaded from disk into memory or really streamed in real time? IMHO it would be pretty difficult to stream from a true SIO disk drive. You have to constantly switch clock rates and I doubt that even at divisor 0 it could keep up with the MIDI replay rate. A heavily event packed MIDI file or even just a fast song will probably not work. Streaming from IDE, yes. Over true SIO, I don't think so.
  14. That means that after MyPicoDos loaded the binary, there's no D driver, i.e. a DOS, to load the MIDI file from disk. (Sorry for the D, but the forum software kept changing D : to 😧 (stupid imoji) whatever I did. I hate smurfs software that "thinks" for me )
  15. I understand. You have enough on your plate already That sounds pretty cool I was thinking, once there's a proper CLI player, a TUI could easily put on top of that. Even load the player after the file is selected. Does SpartaDOS X Commander support launching commands based on the extension of a file? In that case, you already have your file selector. Just the CLI player has to be done --- As for MIDI support in Altirra, it is only half finished. There's only MIDI OUT, no MIDI IN. So, no MidiTrack III for you!! (soup-nazi voice) Then there's Wine, which also has a half baked implementation of MIDI, but most of the time I manage to bridge the Alsa MIDI THROUGH to JACK and use FluidSynth or real hardware from there. Getting MIDI IN to work with Wine is a nightmare IMHO, so for Windows MIDI programs, I would use VirtualBox (downloading WinDev2204Eval.VirtualBox.zip from Microsoft as we speak, because of reasons that'll soon be clear in another post ).
  16. A new MIDI player core is not that hard. You just run a timer, and if the time is right, you send the event to the MIDI device and process the next event until EOF. One would write a simple command line player in a day. It's just load bytes from one device and send it timed to another device. Now a GUI/TUI is a lot more work. I once started at a TUI generator in C on Linux that produced 6502 assembly which was very fast. I got demotivated at around the time I started with the file selector @flashjazzcat at some point in the past you considered releasing your TUI library as open source in the future. Do you still plan on that? And if so, when? Otherwise, a CLI player it will be.
  17. LOL my mild OCD kicked in when I saw that
  18. Instead of just adding atariage to your google search, you can also use "site:atariage.com" to limit your search. "filetype:zip" or "filetype:pdf" can be helpful, too.
  19. Interesting (th)read! I'm wondering how you get to know all the exact inner workings of all the machines. Do you have service manuals? Or patents? I googled a little and couldn't find much. Do you know this book? https://www.goodreads.com/book/show/20327047-mills-slot-machines Edit: Do you mean a collection of slot machines, or a full casino with black jack, poker, roulette, etc...?
  20. LOL, okay, one of my speculations was right I guess. His physical gear
  21. I didn't get it either. I can speculate about different ways to interpret it, but probably better that @Mathy explains. Or not. And leave it a mystery for ever
  22. For a twelve year old they were good enough to spark the imagination
  23. BITD we kids didn't have pornhub, so we had to peek into playboys/penthouses in the supermarket. Or tear out a semi-boob page from a regular magazine at the hairdresser or in the doctor's waiting room. Or hack strip poker to see the last images. And I remember something called Canadian Broadcorping Castration or something like that, which was a 4-6 frames graphics 15 animation of an act of fellatio. Spank the monkey! Fun fact: now there's a game called Spank the monkey. Were they not aware of the slang meaning?
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