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64'er 1993 November
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64er_Magazin_93-11_1993_Markt__Technik_de_Side_A.d64
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2022-10-26
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46 lines
*= $1000
sei
lda #<start
sta $0314
lda #>start
sta $0315
lda #$00
sta selfmod+1
lda $dc0d
and #$7f
ora #$01
sta $dc0d
lda #$2e
sta $d012
lda $d011
and #$7f
sta $d011
lda #$01
sta $d01a
cli
jmp *
start inc $d019
selfmod ldx #$00
again lda $d012
ldy #$02
rza1 dey
bne rza1
wait cmp $d012
beq wait
and #$07
adc #$18
sta $d011
dex
bne again
lda selfmod+1
cmp #$01
beq irqend
dec selfmod+1
irqend jmp $ea31