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45548: Blank Play Area
Used by the routine at ClearPlayWindowWithAttributes.
Clears the pixels of the play window: 20 bytes wide and 112 pixel rows tall, starting at column 2 of the first pixel row.
BlankPlayArea 45548 LD HL,16450 Point HL at the top left of the play window.
45551 LD BC,5232 The window is 20 bytes wide (B) and 112 pixel rows tall (C).
Continue on to ClearPixelBlock.
View the equivalent code in;
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