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Author Topic: PowerPC accelerator - how does that work then?  (Read 11063 times)

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Offline Mrs BeanbagTopic starter

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PowerPC accelerator - how does that work then?
« on: January 30, 2012, 07:52:53 PM »
Ok so I know the PowerPC accelerators for classic Amigas have both a PPC chip and a 68040 on board, but when does the PowerPC chip come in and how does it know?  Does a program have to run on the 68k at first (like a bootstrap) and then trigger some kind of switch, throw an exception, or call a library function or something?
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Offline Mrs BeanbagTopic starter

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Re: PowerPC accelerator - how does that work then?
« Reply #1 on: January 30, 2012, 09:48:00 PM »
Wow, now that's a far more detailed answer than I was expecting!  Thanks!
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Offline Mrs BeanbagTopic starter

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Re: PowerPC accelerator - how does that work then?
« Reply #2 on: January 31, 2012, 05:27:41 PM »
The reason I asked this very question is that I've got plans (read "pipe dream" if you know me well enough) to make an ARM based accelerator card for A1200, using Freescale i.MX series CPU, and 68k emulator in flash ROM.

I think it's possible, considering a Blizzard 1260 goes for £500 on ebay...
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