Thread: CIA doubts
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Old 08 July 2017, 23:32   #2
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 45
Posts: 24,564
Yes. A1000 and Gary based Amigas can access both CIAs simultaneously (if both select bits are active). I don't know if it was designed to do that or if it is was only a side-effect.

Gayle and Fat Gary only allows single CIA select, only bfexxx or bfdxxx space activates CIA select line.

More detailed here: http://eab.abime.net/showpost.php?p=...&postcount=210
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