.org $0 ; Zero Page .org $0100 ; User Ram .org $8000 RESET: cld ldx $FF lda $35 txs NMI: nop IRQ: nop print2: print: lda $4000,x cmp $FF beq loop jsr print_char sta $3000 loop: jsr loop2 sta $7000 lda #$BE jmp print2 loop2: sta $5000 rts print_char: sta $6000 rts ; 6502 Vextor .org $FFFA .dc.w NMI ; NMI .dc.w RESET ; RESET .dc.w IRQ ; IRQ