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52851: Clear Screen
Used by the routines at InitialiseGame, GameOver and GameCompleted.
Clears the screen to bright red on black, with a black border.
Before After ClearScreen
clear-screen-before clear-screen-after
ClearScreen 52851 XOR A Set the border to black.
52852 OUT (254),A
52854 CALL ClearAttributes Call ClearAttributes.
52857 JR ClearScreenBitmap Jump to ClearScreenBitmap.
View the equivalent code in;
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