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Author Topic: 68000 FPGA Replacement  (Read 2227 times)

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Offline mistermskTopic starter

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68000 FPGA Replacement
« on: June 24, 2013, 03:13:54 PM »
Hi All,

 I wanted to thank all the people for the help on the 68010 14Mhz thread first. When going through look at links I stumbled across someone who made a fpga 68000 replacement. I think it reached speeds of 40 to 50 Mhz. Anyway, I went to look for it today and can not find the article anywhere. Does anyone know where that post is? Also, anyone have one? Just curious with the compatibility factor, that is all.
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Offline ChaosLord

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Re: 68000 FPGA Replacement
« Reply #1 on: June 24, 2013, 03:23:42 PM »
A 50Mhz 68000 is about the speed of a 7Mhz 68030.

If you want a 68030 for your Amiga they sell them and they are not that expensive.  Check out AmigaKit.com.  Ppl sell used ones all the time too.
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Offline billt

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Re: 68000 FPGA Replacement
« Reply #2 on: June 24, 2013, 03:29:08 PM »
Are you referring to Majsta's project, or something else?

http://www.majsta.com/modules.php?name=News&file=article&sid=4

He posts on several Amiga sites, I think on EAB a bit more frequently than others.

http://eab.abime.net/hardware-mods/59629-first-amiga-600-fpga-accelerator-12.html
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Offline freqmax

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Re: 68000 FPGA Replacement
« Reply #3 on: June 24, 2013, 07:43:09 PM »
He's accelerator does 14.35 MIPS due to caches and 87.5 MHz which is equalient to:
68030 @ 74.2 MHz
68040 @ 18.8 MHz

(2.64 MIPS without cache)

Asfaik.
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Offline Oldsmobile_Mike

Re: 68000 FPGA Replacement
« Reply #4 on: June 24, 2013, 08:03:36 PM »
Quote from: freqmax;738740
He's accelerator does 14.35 MIPS due to caches and 87.5 MHz which is equalient to:
68030 @ 74.2 MHz
68040 @ 18.8 MHz


Smokin!  Looks like it's A600-only, though?  :-/
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Offline mistermskTopic starter

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Re: 68000 FPGA Replacement
« Reply #5 on: June 24, 2013, 08:47:32 PM »
Quote from: Oldsmobile_Mike;738743
Smokin!  Looks like it's A600-only, though?  :-/



What I just thought. :( I guess I do the 68010 14Mhz mod going.
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Offline AJCopland

Re: 68000 FPGA Replacement
« Reply #6 on: June 24, 2013, 08:50:22 PM »
Quote from: Oldsmobile_Mike;738743
Smokin!  Looks like it's A600-only, though?  :-/


No if you read his site he's also working on an A500 version.
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Offline psxphill

Re: 68000 FPGA Replacement
« Reply #7 on: June 24, 2013, 09:54:56 PM »
Quote from: ChaosLord;738713
A 50Mhz 68000 is about the speed of a 7Mhz 68030.

That depends. You could make something that was compatible with 68000 instructions that had a 16 bit data bus that ran quicker than a hypothetically overclocked 68000.
 
Of course it's neither a 68000 or 68030.
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