Changes
CRTC
,/* Vertical Displayed (R6) */
=== Vertical Displayed (R6) ===
On CRTCs 0/1/2, the condition C4VCC=R6 is considered immediately to activate the VBORDER.
On CRTCs 3/4, the R6 test is done only at new character line start. The update of R6 during the character line is therefore not considered.
