$E9F0/59888:   Set Start of Line

Jump from $E57C, $E6F4, $E900, $E990, $EA01:

E9F0: BD F0 EC  LDA $ECF0,X   ; Low Byte Screen Line Addresses
E9F3: 85 D1     STA $D1       ; Pointer: Current Screen Line Address
E9F5: B5 D9     LDA $D9,X     ; Screen Line Link Table
E9F7: 29 03     AND #$03
E9F9: 0D 88 02  ORA $0288     ; High Byte of Screen Memory Address
E9FC: 85 D2     STA $D2       ; Pointer: Current Screen Line Address
E9FE: 60        RTS

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