Changes
CRTC
,/* CRTC registers */
|9||Maximum Raster Address (aka Number of Scan Lines) (-1)||colspan=3 style="text-align: center;"|Write||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||style="text-align: center;"|Write||style="text-align: center;"|Write||Read/Write||xBP00000||0||Cursor signal is not connected 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||style="text-align: center;"|Write||style="text-align: center;"|Write||Read/Write||xxx00000||0||Sets last raster row of character that cursor is on to invert
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|12||Display Start Address (High)||Read/Write||style="text-align: center;"|Write||Read/Write||xx000000||48||On Amstrad Plus, bit7 of the printer port is controlled by bit3 of CRTC R12 (ie. bit11 of Display Start Address)
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|13||Display Start Address (Low)||Read/Write||style="text-align: center;"|Write||Read/Write||00000000||0||Allows you to offset the start of screen memory for hardware scrolling, and if using memory from address &0000 with the firmware.
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|14||Cursor Address (High)||colspan=3 style="text-align: center;"|Read/Write||xx000000||0||
