Routines
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C857: Move Rows Down
Used by the routine at ScrollViewDown.
Copies 78 rows of the screen buffer downwards, by jumping into the code at ShiftViewRightByte.
Input
HL The address of the end of the rows to copy
B The number of rows
MoveRowsDown C857 LD ($5CDA),SP Write SP at SavedStackPointer.
C85B LD SP,$F1BB SP is F1BB.
C85E JP ShiftViewRightByte_Copy Jump to ShiftViewRightByte_Copy.
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