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B1EC: Blank Play Area
Used by the routine at ClearPlayWindowWithAttributes.
Clears the pixels of the play window: 14 bytes wide and 70 pixel rows tall, starting at column 02 of the first pixel row.
BlankPlayArea B1EC LD HL,$4042 Point HL at the top left of the play window.
B1EF LD BC,$1470 The window is 14 bytes wide (B) and 70 pixel rows tall (C).
Continue on to ClearPixelBlock.
View the equivalent code in;
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