Hi Olaf, On 5/10/12 5:44 AM, Rhialto wrote: > Worse, I tried to run the Waterloo software, after transfering it from > disk images that worked fine in VICE, and that didn't work... (the > results were, after loading, either a return to the menu, or a hang). I > also tried the No6702 versions with the same result!?. The Waterloo software gets loaded into the expansion RAM. When there is bad RAM, what you described is the symptom. You can check the expansion RAM by writing a quick program on the 6502 side to exercise it; even BASIC is fine for this but it will take a while to run. This problem is usually seen on the 3-board version where the expansion RAM is 4116 DRAMs. I have repaired several SuperPETs where one or more 4116s went bad. The combo board uses 4164s. Regards, Mike -- Mike Naberezny (email@example.com) http://6502.org Message was sent through the cbm-hackers mailing listReceived on 2012-05-10 20:00:15
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