Peekb()

         Returns the byte at a memory location

    Syntax:

         Peekb( nSegment, nOffset ) -> nByte

         nSegment : Memory Segment
         nOffset  : Memory Offset

    Description:

         DANGER!!
         This function allows low level access to system. It should be used
         with extreme care and requires a thorough knowledge of computer
         Architecture.

    Return:

         The value of the byte placed on the indicated position.

    Example:

         Peekb ( 64, 0 )                // Returns a byte at 0040:0000h