Changes
CRTC
,/* Interlace sync and video mode (IVM) */
It is necessary to reprogram the CRTC as if we were building a frame of 624 lines.
CRTC 2 is the exception. : R4, R5, R6, R7 do not need to be reprogrammed as it considers each character line to be a double character line.
==== Interlace adjustment line ====
