On 09/18/2014 10:14 PM, A. Fachat wrote: > > 2) if it would have been the lower 16 RAM, I would have run into problems with > that approach. I would have probably tried to write a small machine language > program that triggers a unique signal (like in the first approach, some I/O > line, or maybe even the same /CAS signal as above) and immediately after that > access to the other memory location (or do whatever you want to measure) - you > can then count the cycles to see where the access is after the trigger and > check there. There is also a simple way to switch both RAM banks. Involves switching the 2 _CAS signals. If you have the universal system board that would be done with R11 and R10: http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/pet/univ/8032081-06.gif Gerrit Message was sent through the cbm-hackers mailing listReceived on 2014-09-19 16:00:02
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