> On 2018-06-15, at 00:53, smf <smf@null.net> wrote: > >> It is valid and relevant for the stock CIA having its interrupt output connected to NMI line. > > It's valid for non stock hardware. I was referring to the "Marko Makela's finding is only relevant for the stock hardware" sentence. And I meant that as long as you have a "stock" CIA with its interrupt output connected to the NMI line, the assertion remains "valid and relevant" as opposite to something like a "non-stock"/broken CIA, which might behave differently yet I see no added value in examining such paths. > No matter what other signal you hook up to the NMI line, the CIA will block any attempt to trigger an NMI until it's acknowledged. Yes. > Unless you do something evil like the ESM circuit, where the CPU is fooled into thinking the line has gone high & so it will see the transition back to low as the sign to fetch the NMI vector. Yes. -- SD! - http://e4aws.silverdr.com/Received on 2018-06-15 11:00:17
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