Hello! I have obtained an Ultimax from Japan recently. Upon unpacking, I noticed that its keyboard features "Shift Lock" and "Restore" keys. I was wondering how they are supposed to work? The Shift Lock key is just a normal membrane key and does not have any "locking" mechanism, so some custom electronics would be required to make it work. But I don't see any on the schematics. Similarly, I don't see any NMI line coming from the keyboard so how can the "Restore" key work? Maybe they are both just fakes? There is a MAX BASIC cartridge with the machine. Is there any ROM dump of it? Is it the same BASIC as in C64 / VIC-20, or was it modified further (apart, of course, from the memory management stuff)? Regards, Michau. Message was sent through the cbm-hackers mailing listReceived on 2013-10-13 13:00:08
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