Yeah that seems to be Haze's take, back when he started the 'sys7' driver in 2011 - Pluto 6 is a skelly driver, and this sys7 one does actually start the boot process, but doesn't have devices/input set up, so it's just a somewhat booting skeleton.
```
/* only Ker - Chinq has sound roms, they seem to map in cpu space, sound roms are probably missing from the rest? */
/* seems to be Coldfire based (but not the MCF5206E, it writes to peripheral registers that would be invalid?) */
/* Could be Pluto 7 or 8?, doesn't seem to be Pluto 6 based on Coldfire register use, P6 is apparently 5206e (although I should check if all sets use registers in the same way) */
/* todo - split sets */
/*
Info found online
Pluto 5: 68340
Pluto 6: ColdFire 5206e
Pluto 7: ColdFire 5271
Pluto 8: ColdFire 5475
*/
```
It's free and opensource
The program is Upscayl - and there are some models it ships with, though you can also add other models, I've not dug into that yet. I think different models are best for different elements - I think if I was reauthoring a layout from low quality source material (low res grainy flyers etc), I'd probably generate a bunch of different copies using different models, and have them as separate layers, to blend in different areas.
Have fun anyway, link to latest release is here:
https://github.com/upscayl/upscayl/releases/tag/v2.5.5
Note that in the above upscale I did, I also rebalanced colours (to make black actually black and white actually white), and also ran an unsharp mask. That was it though (along with initially upscaling with 'General Photo - Ultrasharp' model).
Just gave this a quick try through yet another new AI upscaling model, with also level fix and unsharp mask - it really can improve some of these flyer scans I think... though the models may continue to improve even further yet
Original:
New process: