Changes
/* Controlling the Gate Array */
| 1 || 0 || 0 || style="text-align: center;" | n || All || RMR || Control Interrupt counter, ROM mapping and Graphics mode || Gate Array
|-
| rowspan="2"| 1 || rowspan="2"| 0 || rowspan="2"| 1 || style="text-align: center;" rowspan="2" | n || All || RMR || ''Ghost register'' || Gate Array (CPC) or locked ASIC (Plus)
|-
|-
| 1 || 1 ||colspan=2 style="text-align: center;" | n || All || MMR || RAM memory mapping || PAL (only with 128KB or RAM expansion)
