DingusPPC: A more accurate PowerPC Mac emulator

[kataetheweirdo]

This emulator has been discussed in the Infinite Mac topic already, but I figured it deserves its own topic.

I've been working on this emulator for some time with a few other people. It's far from complete, but it's being actively developed.

DingusPPC's source code repository is here.

Releases for the emulator can be downloaded here.

 

[joevt]

DingusPPC's source code repository is here.

The wiki page has a link to the Discord server where you can get help for using or developing DingusPPC.

 

[akator70]

Thank you for the work on this emulator. I’m very impressed with the progress and compatibility.

 

[Andrew-R]

I tried to add few lines into help output and README. (attached)

Still not quite work for my case (booting self-created cd with yaboot/Linux)

Bootable ppc cdrom

Yes, thank you, with imac.zip rom from MAME emulation starts, but stuck lately when Linux kernel is loaded?

forums.macrumors.com

 

[kataetheweirdo]

We've got some fixes in for the decrementer. That said, there seems to be some interrupt issues in general and they're not easy to trace.

 

[kataetheweirdo]

Recent updates have fixed Apple Pippin emulation. BeOS can also boot up now, albeit somewhat slowly. Performa 6400 emulation is also being worked on.

 

[Snial]

Recent updates have fixed Apple Pippin emulation. BeOS can also boot up now, albeit somewhat slowly. Performa 6400 emulation is also being worked on.

Cool, nice to see a 603 'Mac' and 603ev being emulated. I guess they'll get onto infinite Mac at some point. Does 5200/6200 emulation work given that Valkyrie is emulated? I had a look in the machine list, but couldn't see it. In theory is it simply a question of adding the right machine description, e.g. machinecrusader.cpp whose contents reference the correct peripherals?

dingusppc/machines at master · dingusdev/dingusppc

An experimental emulator. Contribute to dingusdev/dingusppc development by creating an account on GitHub.

github.com

It's listed as a project, but there's no content.

Adding additional machines • dingusdev

Adding additional machines

github.com

 

[joevt]

In theory is it simply a question of adding the right machine description, e.g. machinecrusader.cpp whose contents reference the correct peripherals?

Yes. But there may be hidden things missing from the emulation such as Board ID registers. Schematics and memory dumps, etc. may show these hidden things.

 

[kataetheweirdo]

The major things that are missing for the Performa 5200/6200 emulation are the F108 memory controller and PrimeTime II I/O controller.

We haven't found any documentation for these yet, nor has code been found.

 

[Snial]

Yes. But there may be hidden things missing from the emulation such as Board ID registers. Schematics and memory dumps, etc. may show these hidden things.

The major things that are missing for the Performa 5200/6200 emulation are the F108 memory controller and PrimeTime II I/O controller.

So, what you're saying is that Performa x200 emulation isn't ready for PrimeTime !

The best information I had was the developer note, which doesn't really give a lot away. Looking at the architecture diagram, F108 and Primetime II are most of what constitutes the Px200s including SCC, SCSI, IDE, SWIM II, VIAs, sound controller etc.

I also note that the Taylor Design website appears to be down, so one can't get the developer notes from there. However, a copy is at PeterHuman.net.

Index of /library

I realise this doesn't help. Maybe there's still some P5200 developers around somewhere who have documentation squirrelled away.