Otwarcie ekranu w trybie graficznym (GRAPHICS)

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iccmd   =   $0342
icbufa  =   $0344
icax1   =   $034a
icax2   =   $034b
jciomain =  $e456
gr9     lda #9
         bne gr
gr15    lda #15
gr      ldx #$60
       sta icax2,x     ; tryb
       lda #$03        ; otworz
       sta iccmd,x
       lda #<dev       ; co?
       sta icbufa,x
       lda #>dev
       sta icbufa+1,x
       lda #%00011100  ; bez okna tekstowego, odczyt/zapis
       sta icax1,x
       jmp jciomain
dev     .by "S:" $9b
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