Changes
CRTC
,/* CRTC registers */
|15||Cursor Address (Low)||colspan=3 style="text-align: center;"|Read/Write||00000000||0||
|-
|16||Light Pen Address (High)||colspan=3 style="text-align: center;"|Read||xx000000||||Read Only. On CRTC1, bit6 of Status register goes to 0 when R16 is read
|-
|17||Light Pen Address (Low)||colspan=3 style="text-align: center;"|Read||00000000||||Read Only. On CRTC1, bit6 of Status register goes to 0 when R17 is read
|-
|}
