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Old 16 January 2014, 01:33   #1
BarryB
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Why wasn't there a 68050, was it cancelled?

Why wasn't there a 68050, was it cancelled?
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Old 16 January 2014, 02:02   #2
TroelsDK
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It had something to do with Intel's 286,386,486..
Motorolla had to get in front of the line so releasing an 060 instead of an 050 they could be in the lead.. I think Intel was out with 286 just before the 020 was released and again with the 386 <- 030, and 486 <- 040
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Old 16 January 2014, 11:54   #3
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There is a 68070

http://en.wikipedia.org/wiki/68070
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Old 16 January 2014, 11:56   #4
demolition
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Quote:
Originally Posted by BarryB View Post
Why wasn't there a 68050, was it cancelled?
From wiki:
Quote:
Originally Posted by https://en.wikipedia.org/wiki/Motorola_68000_family#68050_and_68070
There was no 68050, though at one point it was a project within Motorola. Odd-numbered releases had always been reactions to issues raised within the previous even numbered part; hence, it was generally expected that the 68050 would have reduced the 68040's power consumption (and thus heat dissipation), improved exception handling in the FPU, used a smaller feature size and optimized the microcode in line with program use of instructions. Many of these optimizations were included with the 68060 and were part of its design goals. For any number of reasons, likely that the 68060 was in development, that the Intel 80486 wasn't progressing as quickly as Motorola assumed it would, and that 68060 was a demanding project, the 68050 was cancelled early in development.
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Old 16 January 2014, 14:47   #5
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As we got miles off topic here I might as well ask why Motorola stopped 68k development? Is that because Apple switched to PPC or 68060 is a max what it could be done on that architecture?
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Old 16 January 2014, 20:03   #6
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Missed that wiki page, thanks!!

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Not really a follow-on to the 060, as the article says, its an SCC68070
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Old 16 January 2014, 20:44   #7
Mrs Beanbag
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As we got miles off topic here I might as well ask why Motorola stopped 68k development? Is that because Apple switched to PPC or 68060 is a max what it could be done on that architecture?
I think they had already decided themselves that PPC was "the future", and I can see where they were coming from, the question really should be why did Intel stick with x86? And the short answer is that PCs everywhere depended on continuing compatibility so it would have been business suicide to abandon it.

Of course in theory 68k could have kept up with x86, but there was no incentive to do so. The sort of things 68k was typically used in - embedded systems, industrial uses and of course macs, weren't upgradeable in the same way, you just bought a new system and that was that.

Amigas really should have had higher-end 68k chips from the beginning, the A500+ could have had a 68EC020 easily, they were already 7 years old by then. 68000 released in 1979 and still used in a new computer in 1991! Crazy!
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Old 16 January 2014, 21:35   #8
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Amigas really should have had higher-end 68k chips from the beginning, the A500+ could have had a 68EC020 easily, they were already 7 years old by then. 68000 released in 1979 and still used in a new computer in 1991! Crazy!
Not to mention A600...
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Old 16 January 2014, 23:33   #9
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Commodore went crazy in late 80' early 90' no doubt about that. To the point it looked like interior sabotage.

Shame on Freescale that they made 68060 so expensive it couldn't compete with ARM. It's actually hard to believe that those chips are still in production. Of course nobody sane is going to pay asking price. They should make last 1000 and give to Amiga community, as we are last people who get excited by 68060 Superscalar CPU.
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Old 17 January 2014, 04:22   #10
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Amigas really should have had higher-end 68k chips from the beginning, the A500+ could have had a 68EC020 easily, they were already 7 years old by then. 68000 released in 1979 and still used in a new computer in 1991! Crazy!
I agree, but the price of the computer was already high enough, and an 020 would have had a severe impact on backwards compatibility.

I was devastated when I bought my 1200 and realised next to nothing worked on it. In hindsight I probably would have been happier with a 600.
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Old 17 January 2014, 06:13   #11
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Commodore went crazy in late 80' early 90' no doubt about that. To the point it looked like interior sabotage.

Shame on Freescale that they made 68060 so expensive it couldn't compete with ARM. It's actually hard to believe that those chips are still in production. Of course nobody sane is going to pay asking price. They should make last 1000 and give to Amiga community, as we are last people who get excited by 68060 Superscalar CPU.
I don't think they are still in production, I don't think they've been manufactured for a looooong time. The only reason you can still buy them is because they've got a big pile of NOS that they keep on hand for the Military. The reason they are so expensive is because they don't really care about selling them to Joe Public.

Would loved to have seen an updated 68060 with a big bump in clock speed and larger caches, that would have been cool

Our best chance these days is FPGA or some similar magic.

There was also a discussion on here somewhere about building an accelerator card around a 300Mhz ColdFire and using an FPGA to fill in the 'missing pieces', God only knows if that's feasible
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Old 17 January 2014, 06:28   #12
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Amigas really should have had higher-end 68k chips from the beginning, the A500+ could have had a 68EC020 easily, they were already 7 years old by then. 68000 released in 1979 and still used in a new computer in 1991! Crazy!
The problem was that the Classic Amiga's were tied so closely to their custom chipset, what initially gave the platform its performance edge became its Achilles Heel in later years.

I think they should have gone for a 'clean sheet' approach for the later big box Amiga's (RTG chunky display, everything on separate cards like a PC).

This is the kind of direction that Dave Haynie was pushing towards at the end.

Last edited by NovaCoder; 17 January 2014 at 06:34.
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Old 17 January 2014, 09:09   #13
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I was devastated when I bought my 1200 and realised next to nothing worked on it. In hindsight I probably would have been happier with a 600.
Or rather a 500 Plus.
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