Changes
CRTC
,/* The Internal registers of the 6845 are */
|9||Maximum Raster Address||xxx00000||7||Maximum scan line address on CPC can hold between 0 and 7, higher values' upper bits are ignored
|-
|10||Cursor Start Raster||xBP00000||0||Cursor not used on CPC. B = Blink On/Off; P = Blink Period Control (Slow/Fast). Sets first raster row of character that cursor is on to invert.
|-
|11||Cursor End Raster||xxx00000||0||Sets last raster row of character that cursor is on to invert
|-
|12||Display Start Address (High)||xx000000||
|-
|13||Display Start Address (Low)||00000000||0||Allows you to offset the start of screen memory, useful when using memory from address &0000.
|-
|14||Cursor Address (High)||xx000000||
