Changes
CRTC
,/* R3 fine horizontal hard scroll */
==== R3 fine horizontal hard scroll ====
If R3 is set to 5 instead of 6 or more, then the frame is shifted to the right on the CTM monitor with an offset of half a CRTC character. This is due to the effect of shortening the C-HSYNC produced by the [[Gate Array]].
As this effect relies on invalid video signals, it is badly supported on modern displays.
