code: function CHS( cylinder, head, sector ) {
  
    if( !(this instanceof CHS) )
      return new CHS( cylinder, head, sector )
  
    if( Buffer.isBuffer( cylinder ) )
      return CHS.fromBuffer( cylinder )
  
    /** @type {Number} Cylinder */
    this.cylinder = cylinder & 0x03FF
    /** @type {Number} Head */
    this.head = head & 0xFF
    /** @type {Number} Sector */
    this.sector = sector & 0x3F
  
  }
docs: Cylinder-Head-Sector Address
  @constructor
  @param {(Number|Buffer)} [cylinder=1023]
  @param {Number} [head=254]
  @param {Number} [sector=63]