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16 bytes for a fairly nice looking (and flicker free) static raster effect (c64)
* = $7c ; zeropage boot-up (for VICE)
sei ; no interupts, no flickering
sty $d011 ; background frame is now everywhere
cpy $d012 ; wait for next raster line
bne *-3 ;
sty $d020 ; set fullscreen color
iny ; wait 2 lines (looks best)
iny ;
bvc *-10 ; loop quickly
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