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Author Topic: Motorola 68060 FPGA replacement module (idea)  (Read 190356 times)

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Offline A6000

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Re: Motorola 68060 FPGA replacement module (idea)
« on: January 17, 2013, 10:37:16 PM »
I read here that the 060 bus interface is too complex and that the 030 bus is better,  also the 060 is less compatible with amiga software than the 030 because many instructions were not implemented, so why do we want an 060 replica, why not try to implement an 030+882 that runs as fast as an 060?
 

Offline A6000

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Re: Motorola 68060 FPGA replacement module (idea)
« Reply #1 on: January 18, 2013, 12:03:27 AM »
Quote from: freqmax;723008
@A6000, If you get tired of 68060 you can switch to a 68030 in 1/10 second.. (with FPGA)


It's not a matter of tiring of an 060, it is the apparent illogical choice of replicating the 060 in the first place.
The Natami team were thinking their processor would run at about 180Mhz which would be reasonably fast enough for most applications.
 

Offline A6000

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Re: Motorola 68060 FPGA replacement module (idea)
« Reply #2 on: January 18, 2013, 07:52:12 AM »
Quote from: billt;723021
68060 replacement.

Not 68060 replica.

There's a difference.

Yes, my ideal is something that goes into a 68060 socket, is 680x0 compatible (tg68, n050, n070, whatever), and hopefully outperforms real 680x0 from Motorola/Freescale.

Then do adaptors or different PCB designs for other sockets to hold the otherwise identical CPU core, whatever it may be. (Tg68 or n050 or arm or x86 or whatever)


If someone designs an 030+882 compatible processor that is as fast as an 060 then it is an 060 replacement. if someone designs an 060 compatible processor with an 060 bus interface then it is an 060 replica.

From what I have read it is easier to interface an 030 to the amiga than it is for an 060, there are not many 060 sockets around, better to use an 030 socket, and new boards would be simpler if they used an 030 bus rather than 060 bus.

I understand that you want something to go in an 060 socket, but would'nt it be better to design something that more people could use?