Hoping someone else has done the heavy lifting on modeling a 6522 for Symon. The rest is working perfect for me, just looking to implement T1 and T2 in a virtual VIA.

I tried looking through the Forks but didn't find a good Via6522.java to cover what I need. I'm working to model my SBC in Symon and a VIA generating jiffy ticks is integral to my monitor.

Thanks for the help!

Well I didn't implement the 6522 timers, but I did hard code a NMI jiffy clock.

sort of almost keeps time, close enough for a simulator.