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Assembler-Example

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; This program rapidly updates the colors
; of the screen and the border.

*=$c000   ; starting address of the program

SCREEN = $d021
BORDER = $d020

start   inc SCREEN  ; increase screen colour 
        inc BORDER  ; increase border colour
        jmp start   ; repeat

You can run this by typing SYS 49152 from BASIC. (The number 49152 equals C000 hexadecimal, the starting address of this example code.)

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