^^^^^^^^^^^^^^^^^^^^
    ^   ANALYSE BOOT   ^
    ^^^^^^^^^^^^^^^^^^^^

    Probably the most interesting function of VBD.
    This function tries to analyse  the  current bootblock using an 'Expert
    System' method.
    First, VBD displays the total length  of  boot,  the length of code and
    the length of data.  Then it tries to analyse data and code in the boot
    and display actions that it  finds  (if  there  is  any) and the offset
    where VBD found it.

    Then, VBD calculates the  different  probabilities  that  the boot is a
    virus, a virus protector, a loader, a utility bootblock, an intro, or a
    harmless bootblock, and displays its results with a histogram.

    This analysis function comes to the  right  conclusion in 901f cases.
    The diagnostic can be altered or simply wrong by a miss of informations
    bootblock, or  simply  if  the  virus  creator  has  included  analysis
    protection in  his  virus  (encrypted  viruses,  useless  functions, no
    direct vectors captured...).