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Re: Quandchrome EGA screen failure.

Posted on 2021-10-27, 11:42

If you don't want to open the PSU, you could still try to take pictures of the PSU board with a mobile phone camera through the ventilation holes. Maybe you can spot something that looks obviously broken. I used that technique on an ATX PSU once.

Re: Say "Hi!" to the Renovation SSI-2001!

Posted on 2021-10-13, 15:06

http://www.sidmusic.org/sid/blubb1.html Little Information about Blubb Soundcard Interesting, but not particularly relevant, because we already have our hardware. Yes! I see it actually exists: https://github.com/cadaver/siddump That would be something useful. The files would be much larger than a …

Re: Say "Hi!" to the Renovation SSI-2001!

Posted on 2021-10-12, 19:26

Yes! I see it actually exists: https://github.com/cadaver/siddump That would be something useful. The files would be much larger than a typical .sid file I guess, but maybe it could be compressed to a reasonable size. The people in this Kiwi forum thread have come up with a somewhat more compact …

Re: Say "Hi!" to the Renovation SSI-2001!

Posted on 2021-10-11, 09:32

root42 wrote on 2021-10-11, 08:08: Or have it work similar to the Adlib captures of DosBox et al. where you simply record the register values, making the 6510 emulation obsolete. You mean like SIDDump? That sounds like the easiest solution. A recompiler based on the SIDdecompiler mentioned above …

Re: Say "Hi!" to the Renovation SSI-2001!

Posted on 2021-10-01, 10:25

matze79 wrote on 2021-09-29, 20:30: Yeah it would require to emulate 6502 CPU 😒 Speaking of which: I recently found this thing here: https://github.com/Galfodo/SIDdecompiler Could we pair that with assembly language translation to create a 6502-to-8086 recompiler for SID files?

Re: ATI Small Wonder technical info

Posted on 2021-09-28, 13:55

The Commodore manual also contains the CRTC parameter tables for all the different modes and therefore technically everything you need. (With monitor type detection being a notable exception. That is a software hack, but a sensible one.) By the way: Have you taken a look at my Plantronics ColorPlus …

Re: ATI Small Wonder technical info

Posted on 2021-09-28, 11:06

You will find all the technical info you are looking for in Commodore's manual for the "PC10/PC20 Advanced Graphics Adapter", which was a rebranded ATI "Small Wonder" Graphics Solution. I also wrote a small demo program that displays a 640x200 pixel 16-color bitmap. You can find both, the manual and …

Re: Say "Hi!" to the Renovation SSI-2001!

Posted on 2021-09-28, 09:06

While everything else about this project is currently on the back burner, I can now at least provide empirical proof that you can build a bracket for the card with nothing but a few metal drills and files. This is what the result looks like: Filename bracket_installed.jpg File size 72.39 KiB Views …

Re: OPL3LPT : OPL3 FM Synthesis on parallel port

Posted on 2021-09-05, 10:25

Parallel port PCI and PCIe cards should technically work, because they usually implement a backwards compatible interface. The I/O resources are assigned by the plug-and-play mechanism, though. You will therefore have to look up the correct port numbers. USB parallel port adapters, on the other hand …

Re: Best CGA & Hercules monochrome games

Posted on 2021-09-03, 19:01

I'm not sure how you could reliably auto-detect this however - very few 6845-type registers can be read for anything useful... and anything trickier (say, in combination with a display status register) may fry the monitor while getting you your result. ;) Maybe a better approach would be a visual …

Re: Best CGA & Hercules monochrome games

Posted on 2021-09-03, 14:34

There were some emulators that (optionally) used different timings, but as I know little is known about their details. It is not hard to figure out, though, because there are really only three timing variants that make sense, namely the 640x300 mode, the maximally compatible 720x348 mode and a mode …

Re: Best CGA & Hercules monochrome games

Posted on 2021-09-03, 12:28

I'd think these days there's enough amassed knowledge to write some open source SIMCGA clone so there's less of that legal problem. The only problem is that it'd piss off the "human readable modern code" general FOSS dev public who won't get the concept or why it'd require an old (possibly non-Free …

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