Changes
CRTC
,/* Vertical Adjustment mode */
=== Vertical Adjustment mode ===
On CRTCs 3/4, this mode does not increment VCC and so VCC stays equal to R4.
On CRTCs 0/1/2, this mode increments VCC and so VCC goes beyond R4:
* On CRTC 0, this increment will only happen once
* On CRTC 1/2, this increment can happen multiple times depending on the values of R5 and R9
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