Extended addressing

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 &FFFFxxxx - Main memory
 &FFFExxxx - Currently displayed screen memory
 &FFFDxxxx - Shadow screen memory
 &FFxRxxxx - Sideways ROM/RAM R
 &FFCxxxxx - Hidden MOS ROM underneath I/O area
 &FF8xxxxx - VDU and MOS workspace RAM
<&FFxxxxxx - language memory

See Also

Jgharston (talk) 20:25, 3 April 2015 (UTC)