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Old 15 June 2013, 13:33   #88
Cymru
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Join Date: Sep 2012
Location: Dorathea/AT
Posts: 371
As I recall the Slow Ram showed up with the first Fat Agnus (A1000 had none) and disappeared with the 1 MB Agnus -- one had to add memory to use a 2 MB chip; the Fattest Agnus (2 MB) took up all the Chip Ram address lines as noted above. It was Slow because the bus had to contend with the Agnus at the same time. One could speed it up by turning Agnus off (blanking the screen).
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