$E544/58692:   Clear Screen

Jump from $E86E:

E544: AD 88 02  LDA $0288     ; High Byte of Screen Memory Address
E547: 09 80     ORA #$80
E549: A8        TAY
E54A: A9 00     LDA #$00
E54C: AA        TAX

Jump from $E558:

E54D: 94 D9     STY $D9,X     ; Screen Line Link Table
E54F: 18        CLC
E550: 69 28     ADC #$28
E552: 90 01     BCC $E555
E554: C8        INY

Jump from $E552:

E555: E8        INX
E556: E0 1A     CPX #$1A
E558: D0 F3     BNE $E54D
E55A: A9 FF     LDA #$FF
E55C: 95 D9     STA $D9,X     ; Screen Line Link Table
E55E: A2 18     LDX #$18

Jump from $E564:

E560: 20 FF E9  JSR $E9FF     ; Clear Screen Line
E563: CA        DEX
E564: 10 FA     BPL $E560

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