Routines
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E59D: Clear Screen
Used by the routines at StartGame and GameOver.
Clears the whole screen to white ink on black paper, and sets the border to black.
Before After ClearScreen
clear-screen-before clear-screen-after
Clear the pixels, the attributes and the border.
ClearScreen E59D CALL ClearPixels Clear the pixels.
E5A0 CALL ClearAttributes Clear the attributes.
E5A3 LD A,$00 Set the border to black.
E5A5 OUT ($FE),A
E5A7 RET Return.
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