NatAmi 68070 design draft

[Zac67]

The Motorola 68060 CPU was designed that way. Its a CISC decoder in front of a RISC execution pipeline.

Err...

The '060 has no RISC core - this is garbage. RISC starts with Coldfire.

And I'd like a to see an available 5 GHz RISC CPU...

[Zac67]

Yes, Motorola also left the 'classic' 68k track for the Coldfire way - they had their reasons.

Actually I miss the point of recreating a completely new (?) RISC core to have it run/emulate/whatever 68k code.

There are lots of low cost, high speed available CPUs (well, most of em x86), why not use on of them? While you're at it, add one of the off-the-shelf mobos that don't cost a fortune and are wickedly fast. Obviously you end up where Amithlon started - so I'd rather see a PCIe (or PCI if need be) board sporting an original AGA chipset or a nice vamped up Minimig/Natami/... chipset to get 100% compatibility. Most work (UAE) is already done.

The other option is porting the OS to x86 (AROS) and adding an emulation layer for compatibility (this will hopefully been done soon).

I really appreciate the effort of these guys, but I'm afraid they're running in the wrong direction...

[Zac67]

bloodline wrote:
perhaps with something like AAA filling the gap until something like NYX could be brought to market by 1992..

Err ;-)

The Nyx was the AAA prototype... link

[Zac67]

Phew, just made it through this long thread...

Actually, I have the impression that many posters do offer very constructive criticism to point out where the effort could be more effective. I can't imagine anyone reading here who wouldn't be totally enthusiastic when all this could eventually be realised.

However, some of the possible design goals are not at all realistic (chipset for mobile phones, ASIC design, ...) and should seriously be rethought before much time gets wasted on them...

[Zac67]

@Kin-Hell
Oh boy - I was talking about 68k-ish RISC. :roll: (or rather RISC-ish 68k)

Of course RISC predates Coldfire - but e.g. ARM predates PowerPC by nearly a decade, not to mention MIPS.

[Zac67]

From what I read NATAMI , comes out of nowhere with a home-grown designed CPU and GPU, is supposed to be capable of ray-tracing Quake 3 @ 800x600/truecolor @ 30fps!

OMG - I hope this is not coming from any of the developers... Otherwise this project has just suffered a serious decrease of respect from my side. Complete nonsense.

Well, all in all I'm very sceptical, but I'd love to be surprised.  ;-)