docs: function fromBits (a00, a16, a32, a48) {
  		if (typeof a32 == 'undefined') {
  			this._a00 = a00 & 0xFFFF
  			this._a16 = a00 >>> 16
  			this._a32 = a16 & 0xFFFF
  			this._a48 = a16 >>> 16
  			return this
  		}
  
  		this._a00 = a00 | 0
  		this._a16 = a16 | 0
  		this._a32 = a32 | 0
  		this._a48 = a48 | 0
  
  		return this
  	}