Am Donnerstag, 18. Juni 2020, 20:09:52 CEST schrieb Gerrit Heitsch: > On 6/18/20 7:37 PM, groepaz_at_gmx.net wrote: > > Now run the "delay2-new" and "delay2-old" programs. Green border means > > "test passed", and will generally tell if you have a "new" or "old" CIA. > > (Contrary to popular belief this can NOT be reliably determined from > > whats written on the chip) > > So far I was always able to tell what kind of CIA it is by looking at > the chip. > > No, the 'A' after the 6526 is not an indicator. > > I do know 3 CIAs though: > > 6526 (sometimes with 'R4') > 8521R0 (also labeled as '6526' with '206A') > 8521R1 (labeled 6526 with '216A') > > The question is, can you tell the 8521R0 und R1 apart via software? I > have seen the 8521R1 stamped as '6526B', meaning good for 3 MHz. we are looking at a different behaviour found in a 6526 with timestamp 4485 and one (two) with timestamp 3084/3384 here. (which we are trying to narrow down and/or confirm) -- http://hitmen.eu http://ar.pokefinder.org http://vice-emu.sourceforge.net http://magicdisk.untergrund.net Es gibt keine Gerechtigkeit an sich. es gibt nur Übereinkünfte, sich gegenseitig so wenig wie möglich Schaden zuzufügen.Received on 2020-06-18 21:02:12
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