extern Uint8 inb(Uint16 Port); //!< Read 1 byte from the IO Bus
extern Uint16 inw(Uint16 Port); //!< Read 2 bytes from the IO Bus
extern Uint32 inl(Uint16 Port); //!< Read 4 bytes from the IO Bus
extern Uint8 inb(Uint16 Port); //!< Read 1 byte from the IO Bus
extern Uint16 inw(Uint16 Port); //!< Read 2 bytes from the IO Bus
extern Uint32 inl(Uint16 Port); //!< Read 4 bytes from the IO Bus