in a, (2)
    rlca                            ;Roll bit 7 into carry.
    jr nc,Cn2_Int_USBCableNot84
    and 40h                         ;Test bit 5, now rotated into bit 6.
    jr z,Cn2_Int_USBCableNot84
    ld hl,Cn2_USB_Plugged
    ld a,(hl)
    ld c,a
    and %10101111
    ld b,a
    in a,($4D)
    and %01010000
    or b
    ld (hl),a

    ; Check if we need to reset things (on cable pull) c hold original data A holds flags
    xor c
    and %01010000
    jr z,Cn2_Int_USBCableNot84          ;Jump over if the USB cable did not just plugged or unplugged
    xor c
    and %01010000
    jr nz,Cn2_Int_USBCableNot84         ;Jump over if the USB cable did not just get unplugged

    ;a is automatically zero here from above assumptionsss
    out ($4C),a