Changes
CRTC
,/* VLC (C9) overflow */
* on CRTCs 0/1/2, VLC overflows and will count up to its maximum value (31) before looping back and counting up again until it reaches the new value of R9
* on CRTCs 3/4, the current line is considered the last one of this CRTC character and VLC will reset to 0 on the next line
There is an exception on CRTCs 0/2 if the change occurs on the last frame line. Then VLC resets to 0 on the next raster line as it starts the next frame.
<br>
