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    sbIO()

         Returns and/or modify the SB IO Address

    Syntax:

         sbIO( nNewAddr ) -> nAddress

         nNewAddr : The new address the Sound Blaster has to have.
                    Remember that the value must be introduce in decimal,
                    so you have to translate the hexadecimal to decimal.

    Description:

         Returns and/or modify the IO Address of the Sound Blaster. If
         null the Sound Blaster is in the 220h address, but this value
         can by modify by the straps of the card.
         Check the Sound Blaster Input/Output Address and modify this
         function to that address.

    Return:

         A numeric value showing the actual IO address.

    Example:

         ? sbIO()               // Probably Returns 220h in decimal