Will there be an ACA1240 or ACA1260?

[donpalmera]

I am curious, is it the limitation of the actual 68k that it cannot continue to 68070

The 68k series continued in the Coldfire which isn't compatible enough. The Coldfire is another one of those things that people often bring up in "someone must make xzy" threads.

cannot go beyond 50 Mhz like 230 Mhz or 1 Ghz"

There is technically possible and economically possible. I don't see why you couldn't make a stinking fast 68k but there is no market for a desktop 68k processor in this day and age so there aren't any.

Amiga classic itself that forces the maximum limit of 50 Mhz for all 68K except with forced over clocking?

Or just dump the hardware and do it all in software instead. If back when I bought a BlizzardPPC new there were X86 systems that could run WinUAE as fast as they do now I would have never bought the BPPC.

[AmigaClassicRule]

The 68k series continued in the Coldfire which isn't compatible enough. The Coldfire is another one of those things that people often bring up in "someone must make xzy" threads.



There is technically possible and economically possible. I don't see why you couldn't make a stinking fast 68k but there is no market for a desktop 68k processor in this day and age so there aren't any.



Or just dump the hardware and do it all in software instead. If back when I bought a BlizzardPPC new there were X86 systems that could run WinUAE as fast as they do now I would have never bought the BPPC.

No there is not now, but back then when it was used and needed why did they migrate to PPC when it was possible to be more than 50 MHz?

[donpalmera]

No there is not now, but back then when it was used and needed why did they migrate to. PPC when it was possible to more than 50 MHz?

It might not have been possible to go further with the current design, maybe it would have needed a complete redesign.. so they just designed a new architecture. I don't think they did it out of spite.
This is sort of like saying "the z80 worked.. why isn't everything just a really fast z80"?

[Blinx123]

I am curious, is it the limitation of the actual 68k that it cannot continue to 68070, 68080 and so on and that it cannot go beyond 50 Mhz like 230 Mhz or 1 Ghz or is it the limitation of the Amiga classic itself that forces the maximum limit of 50 Mhz for all 68K except with forced over clocking?

You could probably clock a 68060 to 230MHz or 1GHz, but then it really wouldn't be a 68060 anymore.

A shrink alone is certainly not enough. You would have to redesign vast parts of the pipeline.
In the end, it would turn out to be somewhat like an Intel Core 2 Duo (Pentium 3).

As for not continuing to 68070/68080/etc. Blame Motorola for going PPC.

Lastly. It's probably worth mentioning that a 68060 isn't just a souped up 68000 (your first sentence seems to insinuate that).

[WolfToTheMoon]

Going RISC was "in" in the late 80s/early 90s.

At the time, it was possible to design a fairly competitive and cheap RISC design on a budget. So pretty much everyone did. Most every bigger workstation maker had an inhouse RISC design in the works(SPARC, DEC Alpha, HP PA RISC, SGI bought MIPS..). Add to that that most IT experts prophesized the death of CISC/x86.
But in the early-mid 90s, Intel(and Motorola with 040 and 060) showed that RISC features can be implemented in a legacy x86/68k... Rest is history.

Sad thing is 68060 was pretty competitive at that time, especially in integer performance. All it needed was a fully pipelined FPU(P5 Pentium had one) and out of order execution(P6 Pentium). P6 evolved to Core processors of today(Pentium 4 was a different design). So 68K in 2012 was very doable

[Lord Aga]

Please link them then..

Sure, knock yourself out:
http://www.natami.net/knowledge.php?b=0
Tons of valuable technical data and knowledge. Not just the 68060FE stuff.

Sigh, you followed some forums.. great.

Yeah, and you followed what... exactly which proves that those CPUs don't work ? How many of those 68060FE133s have you tested, or seen someone test to prove faulty ?
We were on the forum day and night following that really great engineering work. Thomas Hirsch said that they worked and that they passed the tests (without MMU and FPU but still). NAe60F board has been seen in action and we have seen it running games and benches. Are you saying Thomas and the rest of the team are liars ? That NatAmi project was just an elaborate scheme going on for years just to fool the people into thinking how FE CPUs are ok when in real life they are not ? Well... if that was the case then they sure fooled me. Hats off to them.

 These chips very well may have "worked". But as I said.. I have 0.8mm pitch AE package 68SEC000s that don't exist that apparently work too.. would you ship a product based on these parts?

To the US military ? Probably not. To a small niche enthusiast segment ? If they work well and are tested, why not. Who cares about labels ?

The fact that none of you even brought up the fact that Motorola mentions CQFP parts in their documentation when they apparently don't exist surprises me to be honest. I would have thought you would have mentioned it right away..

What surprises me is that you believe that Motorola's actions through the history are so flawless that it is utterly impossible for some of their CPUs to slide out of the "official" charts. If anything, Motorola has a history of cock-ups (to counter the list of brilliant stuff I guess) and illogical moves. So why not just go with the flow ?

[utri007]

How about 66mhz 68k cpu, with integrated gpu, usb controller, memory controller, etc. That would be DragonBall Super VZ.

http://cache.freescale.com/files/32bit/doc/prod_brief/MC68SZ328P.pdf

[Blinx123]

Chimming in to say that I've just been offered a Blizzard 1260 (well. Blizzard 1240 modified by Stacho, actually. But that shouldn't make a difference, aye?) with a Rev 6 68060@77MHz.

Waiting for some pics now, then I'll decide whether to buy it or not.
But looking good, so far.

[Iggy]

How about 66mhz 68k cpu, with integrated gpu, usb controller, memory controller, etc. That would be DragonBall Super VZ.

http://cache.freescale.com/files/32bit/doc/prod_brief/MC68SZ328P.pdf

Freescale: "The End of life for this family is complete."

So, that's not even available.
At least I can still get certain 68060s.

[Iggy]

Chimming in to say that I've just been offered a Blizzard 1260 (well. Blizzard 1240 modified by Stacho, actually. But that shouldn't make a difference, aye?) with a Rev 6 68060@77MHz.

Waiting for some pics now, then I'll decide whether to buy it or not.
But looking good, so far.

That would  do nicely.

[Blinx123]

That would  do nicely.

It sure would.

I mean, it costs quite a bit more than all the other accelerators I've been offered before. But then I realize that labour isn't free either and it would probably cost me quite a penny to let someone rework a 1240, as well.

I hope I can easily remove the coolers though.
The seller placed two on there (one on top of the CPU and one below it) and I'm quite positive that I won't be able to keep it that way without towerizing my Amiga 1200.

Which reminds me of another fun project.
Modifying a standard ATX tower, so it will suit a Amiga 1200 plus busboard, accellerator and RTG.

Has anyone done something like that before?

[psxphill]

I hope I can easily remove the coolers though.
The seller placed two on there (one on top of the CPU and one below it) and I'm quite positive that I won't be able to keep it that way without towerizing my Amiga 1200.

I'd be interested in why they added the coolers.

[Blinx123]

I'd be interested in why they added the coolers.

"They" didn't.

The seller did it by himself.
As he explained it to me, he's kind of a cooling junkie and very fond of his Rev 6 060, so back then he didn't want to risk screwing up his CPU.

I asked him to do some tests on it and post a video. He doesn't have Quake and while he was more than willing to find some wads, I told him that there was no need and that ScummVM (Sam&Max) would be plenty enough.

Always wanted to play Sam&Max on an Amiga. This will be interesting.
Probably still not enough horsepower for another personal alltime favourite of mine, The Feeble Files.

[AmigaClassicRule]

"They" didn't.

The seller did it by himself.
As he explained it to me, he's kind of a cooling junkie.............QUOTE]

LOL I am cooling junkie too! I thought I am alone, hehehe.

[Iggy]

Personally, I'd try to find a way to keep the CPU cooler.
My guess is that with that overclock, you may need it.

[Blinx123]

Pics and video are in:

http://www.youtube.com/watch?v=2P2xKWUP5Gg&feature=youtu.be












What really got me though, is the fact that he said something to the extent of the CPU not being a Rev 6, after all. Apparently, while the markings on the CPU point to Rev 6, it's recognized as a Rev 5.

EDIT: There were some other pictures of the trapdoor, but that stuff is like the SAW V of Amigas. Don't think I would want to do that to my trapdoor (drilling a large hole into it).

I wonder if I should just slightly rise my machine (by adding some large metal feet to it) and tuck away the trapdoor. Surely, the amount of dust can't be that tremendous.