$FD02/64770:   Check For 8-ROM

FD02: A2 05     LDX #$05
FD04: BD 0F FD  LDA $FD0F,X
FD07: DD 03 80  CMP $8003,X
FD0A: D0 03     BNE $FD0F
FD0C: CA        DEX
FD0D: D0 F5     BNE $FD04
FD0F: 60        RTS

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