|9||Maximum Raster Address (aka Number of Scan Lines) (-1)||xxx00000||7||Maximum scan line address on CPC can hold between 0 and 7, higher values' upper bits are ignored
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|10||Cursor Start Raster||xBP00000||0||Cursor signal is not used on CPCconnected to the Gate Array but is provided to the expansion port. B = Blink On/Off; P = Blink Period Control (Slow/Fast). Sets first raster row of character that cursor is on to invert.
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|11||Cursor End Raster||xxx00000||0||Sets last raster row of character that cursor is on to invert