Changes
CRTC
,/* CRTC Differences */
{|{{Prettytable|width: 700px; font-size: 2em;}}
|rowspan=2|''Register Index''||rowspan=2|''Register Name''||colspan=43|''Type''
|-
|0||1 & 2||3 & 4
|-
|0||Horizontal Total (-1)||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|1||Horizontal Displayed||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|2||Horizontal Sync Position||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|3||Horizontal and Vertical Sync Widths||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|4||Vertical Total (-1)||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|5||Vertical Total Adjust||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|6||Vertical Displayed||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|7||Vertical Sync Position||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|8||Interlace and Skew||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|9||Maximum Raster Address (aka Scan Line) (-1)||Write Only||Write Only|colspan=3 style="text-align: center;"|Write Only
|-
|10||Cursor Start Raster||Write Only||Write Only||Read Only
|13||Display Start Address (Low)||Read/Write||Write Only||Read/Write
|-
|14||Cursor Address (High)||Read/Write||Read/Write|colspan=3 style="text-align: center;"|Read/Write
|-
|15||Cursor Address (Low)||Read/Write||Read/Write|colspan=3 style="text-align: center;"|Read/Write
|-
|16||Light Pen Address (High)||Read Only||Read Only|colspan=3 style="text-align: center;"|Read Only
|-
|17||Light Pen Address (Low)||Read Only||Read Only|colspan=3 style="text-align: center;"|Read Only
|-
|}