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Old 22 September 2017, 04:37   #1
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A1200 with accelerator card

Hello, my understanding has always been that once you add an accelerator card to an A1200 the on-board 680EC20 is no longer used with the cpu on the accelerator card taking over.

Is this correct? Or the on-board 680EC20 is still used for some other tasks, i.e. - work gets divided between the two CPUs?
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Old 22 September 2017, 09:36   #2
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Nope, the on-board CPU does not run when another is connected. While the 680x0 family supports multiple CPUs on the same bus, the Amiga architecture does not, so when there are two CPUs, one CPU is shut down.
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