Agemixer(06:24:59)
when the OPAMP tells the difference is near enough, it tells another opamp to slow down the RC power and give a signal to CIA to result stop at same time
Agemixer(06:21:56)
the high part can be read from CIA, then the low part can be read from ext counter from this sampler, which counts up ALL cycles
Agemixer(06:20:17)
a bit quirky idea but: a counter chip, with a reset at the same time as analog RC is "reset". using C64's 1MHz.