$FD1A/64794:   Change Vectors For User

Jump from $FF8D:

FD1A: 86 C3     STX $C3
FD1C: 84 C4     STY $C4
FD1E: A0 1F     LDY #$1F

Jump from $FD2D:

FD20: B9 14 03  LDA $0314,Y
FD23: B0 02     BCS $FD27
FD25: B1 C3     LDA ($C3),Y

Jump from $FD23:

FD27: 91 C3     STA ($C3),Y
FD29: 99 14 03  STA $0314,Y
FD2C: 88        DEY
FD2D: 10 F1     BPL $FD20
FD2F: 60        RTS

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