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Posted By

gerliczer
on 2016-03-07
02:51:52
 Re: A mathematical demo


@MMS

I'm a bit sceptic about missing an NMI pin on the expansion port is the only obstacle. 1) Where would you connect it in a 264'er machine? 2) How would triggering an interrupt, even if it is Non-Maskable Interrupt, help taking over the system? And we didn't even mention that NMI in C64 is edge-triggered. 3) Wouldn't it be much more reasonable if we could control externally the BA (RDY) and AEC signals? That would make not too hard implementing a freezer+turbo card, or at least that's what I think. Maybe it could be done similarly to the C64 with a DMA pin on the expansion port, or with some insane trickery on those two existing signal pins.




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