$EF7E/61310:   Set Up To Receive

Jump from $EF92, $EFD8:

EF7E: A9 90     LDA #$90
EF80: 8D 0D DD  STA $DD0D     ; CIA2: Interrupt (NMI) Control Register
EF83: 0D A1 02  ORA $02A1     ; RS232 Enables
EF86: 8D A1 02  STA $02A1     ; RS232 Enables
EF89: 85 A9     STA $A9       ; RS232 Flag: Start Bit check/Tape temporary
EF8B: A9 02     LDA #$02
EF8D: 4C 3B EF  JMP $EF3B     ; Disable Timer

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