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C8D9: Move Rows Up
Used by the routine at ScrollViewUp.
Copies 78 rows of the screen buffer upwards, by jumping into the code at ShiftViewLeftByte.
MoveRowsUp C8D9 LD ($5CDA),SP Write SP at SavedStackPointer.
C8DD LD B,$78 B is 78.
C8DF LD SP,$E67B Set SP to E67B.
C8E2 LD HL,$E5BB Point HL at ScreenBuffer.
C8E5 JP ShiftViewLeftByte_Copy Jump to ShiftViewLeftByte_Copy.
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