On Sat, Jul 30, 2016 at 01:56:36PM +0200, Gerrit Heitsch wrote: > >In the max the PLA also does the color ram to cpu bus switching. > > That's something that can be handled with a CD4066, as in the C64. To me > it sounds as if the PLA in the Max machine is rather simple and it > should be possible to replace it with a much smaller logic chip than > needed for the PLA in the C64. It isn't really a PLA, it is a custom chip just like the 6702 (which is a bunch of shift registers, used for a "security" dongle). There is hardly any logic needed for the 6703 functionality, mostly just the pad drivers ;-) Segher Message was sent through the cbm-hackers mailing listReceived on 2016-07-30 13:00:52
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