for (chunkcol = 0; chunkcol < (BitBufferLength / CHUNKSIZE); chunkcol++)
    {
         foreach $masknum (@mask)
         {
              if ( ( BitBuffer[chunkcol] & mask[$masknum] ) == $seabits[$masknum])
              {
                   return ( ( chunkcol * CHUNKSIZE) + $masknum );     # FIXME:  Check for fenceposting error(s)
              }
         }
    }
    
    return ($RET_NOTFOUND);