$C12C/49452:   Prepare for LED flash after error

Jump from $E650:

C12C: 78        SEI
C12D: 8A        TXA             ; save X register
C12E: 48        PHA
C12F: A9 50     LDA #$50
C131: 8D 6C 02  STA $026C
C134: A2 00     LDX #$00
C136: BD CA FE  LDA $FECA,X     ; 8
C139: 8D 6D 02  STA $026D
C13C: 0D 00 1C  ORA $1C00       ; turn LED on
C13F: 8D 00 1C  STA $1C00
C142: 68        PLA
C143: AA        TAX             ; get X register back
C144: 58        CLI
C145: 60        RTS

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