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ivop

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ivop last won the day on April 9 2017

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About ivop

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  1. I know the rules where set in the first post, and no monies are returned, and I'm fine with that. As I understand it, in the end all donations go to the winning project. Here's an idea for the next time this kind of donation based project is initiated. Perhaps let donators make a top-3 list (in this case it's 3) instead of just voting for one project. In my case, that would translate to: okay, if number 1, SIO2IO doesn't win, then my vote goes to number 2, the wireless CX40. And so on... But I understand that it's difficult to make a choice if the votes have different "financial" backing. Five votes of a tenner for project A, versus, one vote of a hundred for project B.
  2. Also note that the display list itself must not cross a 1K boundary.
  3. I was thinking it could work with a SpartaDOS X cartridge and your IDE.SYS driver? But anyway, it would be a pain and not nearly as useful. Not booting of PBI D1: for example.
  4. I think it could be possible to design a simple PCB with just the standard MMU and BASIC and OS ROMs, which interfaces with a standard 1088XEL motherboard, similar to how a U1MB would do. It won't be a 1088XEL as it has only 64kB on the mainboard, but it should be fully functional as an 800XL replacement, with some extra's, like IDE and MIDI.
  5. That's exactly what I did. I wanted to be complete (IN/OUT/THRU), but THRU is/was hardly used in a studio setting, because of latency. Imagine 5-10 MIDI devices daisy chained, each filtering their own channel and react on it (i.e. play a sound). The first and the last device would not play in unison anymore. That's why MIDI hubs were invented. MIDI THRU is fine with 2-3 devices. After that, it's a no go for musicians. All IMHO ofcourse.
  6. Yeah, that's ridiculous. I have done a run of multijoy8 boards and have sent a lot of them to the US, too. Currently the costs for a bubble envelope from The Netherlands to the US are: (postnl.nl) 50-100g ---> €4,50 100-350g ---> €7,50 Add cost for the envelope itself, too, of course, but total should be well below $10,= US. A 10x10 unpopulated PCB 1.6mm weighs about 32 grams. If I were to send out populated multijoys, I just weighed one, including two cables of over 1m each: 186 grams. Sorry, this is offtopic
  7. Did you see my edit? I understand SIO ports are very expensive, but I think most people have a couple of 1010's they could use as a donor, if they wanted to. So, just not populate the footprint, but have it there on the PCB. @mytek did great with his hybrid footprint that can be populated with either an SIO jack, or a DB15 connector. IMHO one port is the minimum. How weird would it be if SIO2IO did not include SIO, too?
  8. 5V/1A should be enough for an 800XL, but as you indicate, there might be limitations on upgrades that pull too much current.
  9. Why a THRU port? Honestly, how many times have you used it? Second SIO port is a really good idea. Actually, looking at the mockup, there's no SIO port at all? I think at least one is nice, so you can keep daisy chaining. Perhaps a 2nd port, so it also acts as a hub. Considering the size of a 40 pin IC, I think it's about ~5000 mil x ~3000 mil, 5"x3", 12.7cm x 7.62cm. Rough guess. Dropcheck has the exact measurements Edit: to keep cost down, you could not populate those with SIO jacks. Same for a MIDI THRU port. Footprint is there for those who want it, et cetera...
  10. I had the same reading comprehension problem Gunstar had, until after the fifth time rereading the lines or something, I realised the end of the sentence was different
  11. Siddasm2 can disassemble .sid, .nsf and .sap files.
  12. That's an idea. Next time I'll ask them
  13. These conversions were easy, because I have the RMT files, but I thought I'd share them anyway. Plus, I'd like them being preserved by ASMA Atari Invasion Invitation Raining Blood by Slayer Cover Released on NYD 2019 02:46 rain.sap Hallowed Be Thy Name Iron Maiden Cover SV2K19 Music Compo 9th place 03:26 hbtn.sap Procrastinate Based on Koyaanisqatsi, Iron Maiden gallop, and New Dawn Fades Philip Glass, Steve Harris, and Ian Curtis SV2K19 16K Demo Compo (w/ @F#READY and FRS for visuals) 1st place 04:46 procrastinate.sap Koyaanisqatsi (Long Version) Early demo, full arrangement Previously unreleased 03:05 koyaanisqatsi-long.sap Edit: added duration of each song. All .sap files should have them set correctly and proper players should stop and go to the next song
  14. IIRC Mahoney uses the gate bit extensively. "We" could use STIMER to reset phase.
  15. You're right, but they use the same principle @Bryan proposed. Determine the three most dominant frequencies in a certain time slice and replay those with your soundchip. SID in this case. IIRC their time slice is 20ms, i.e. one PAL frame. Here it is used to replay an a-capella song, but it could just as well be used to play phonemes and concatenate them for words and sentences. Pokey could do four instead of three channels, but with square waves and not sine waves. And phase alignment will be a problem, too.
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