> On 23 Apr 2023, at 12:27, Maciej Witkowiak <ytm_at_elysium.pl> wrote: > > Correct me if I am wrong but AFAIR (?) $00 / $01 writes do not show on the bus, do they? Although I _think_ there were some tricks to catch them? Can anyone remind me how that works(/ed) if at all? > > I assumed that '816 remains in control all the time. It doesn't have a port so $00/$01 writes should appear on the bus like any other access - this can be intercepted and latched somewhere on the SCPU side. In that case yes, sure. I somehow misunderstood the intent, probably because of the latter part of your post. Still - I vaguely recall there was a hacky way of snooping those accesses even if the 6510 was in control?Received on 2023-04-23 16:00:03
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