Screen scroll value (NBG2, horizontal direction)

Screen scroll value (NBG2, vertical direction)

Screen scroll value (NBG3, horizontal direction)

Screen scroll value (NBG3, vertical direction)

● Reduce enable

● Line & vertical cell scroll control (NBG0, NBG1)

● Vertical cell scroll table address (NBG0, NBG1)

● Vertical cell scroll table address (NBG0, NBG1)