New multi-core kernel for AmigaOS 4 shown at Pianeta Amiga!

Quote:
The author of Petunia has later released the same JIT compiler (even with some improvements) under open source licence in UAE (in EUAEPPCJIT branch) so you can just take it from there and use it for the open source reimplementation of Petunia in AOS4. It should be better than Musashi and actually the same or very close to what it wants to replace. You just need to find how to interface it to the kernel.

@eliyahu

Yeah, I tested it on my Sam460 (used for demo on big screen), I launched the MESA demo Chaos Theory with a Bluetooth speaker.

It was crackling on heavy scenes but Andrea knows about it.

Pictures of the event : https://amiga-ng.org/resources/PhotosTripleA/?dir=Pianeta2026

That's a miracle!
A first step about a next fully open sourced AmigaOS based on PowerPC platform to grant max compatibility.
..And new drivers and new hardware!!
And also full compatibility with Linux PCC.. what's else?

Thanks to everyone involved!

@afxgroup

CONGRATULATIONS ON YOUR PROGRESS WITH THE KERNEL!!

I was wondering if you could tell us a bit about how it works.

Are all the cores accessible to any OS4 legal app or are the
added cores only used for specific apps & purposes?

From what little we've seen of the AEon blackbox, it seems like
that has been a big hang up with ExecSG (as little as I know).

How is memory handled? OS4 can address 2GB and has it's
addition of ExtMem - how does that work with all the cores?

Similar questions exist for the graphics drivers you're working
on. Any information on the plans to support hardware video
decoding, etc.?

Of course we all have so many questions!

Keep up the great work!!

Thanks!!

PJS

A wonderful development! It would be great if the new kernel were already compatible upon the release of Tyche.
But well, I'm dreaming... (:

@balaton

Quote:

Same author, different jit compiler.

The EUAE jit compiler was written from ground up, he had to take into account of virtual address space, while Petunia lives in same address space as AmigaOS4.1. the EUAE one has uses JIT blocks, that can optimized away, in special conditions, Petunia JIT does not.. If I’m not mistaken.

the Petunia JIT has its own kernel module, not compiled into exec library, it can be that it can work, or not, but no 68K software was written for SMP, the same goes for OS4 software, but then again, I assume OS4 code is lot more clean C code, then OS3 code with a lot mort assembly code, and room for short cuts.

At moment musashi is working at same speed of petunia (EUAE seems to have the same speed since a game is loaded in the same exact time).
With this kernel you can choose which emaulation resource you want to use so you can exchange musashi with another one without any problem. But at moment speed is the last of the tasks I'm working on. First there is the stability. And in any case 68k code is always working on core 0 since software is using SysBase->ThisTask that can't work with SMP

@afxgroup

about Tabour

Quote:

https://www.exec.pl/article.jsp?nid=18 ... iew_with_Trevor_Dickinson

I assume trampoline is missing in the AROS kernel.