docs: function parse_BrtCalcChainItem$(data, length) {
  	var out = {};
  	out.i = data.read_shift(4);
  	var cell = {};
  	cell.r = data.read_shift(4);
  	cell.c = data.read_shift(4);
  	out.r = encode_cell(cell);
  	var flags = data.read_shift(1);
  	if(flags & 0x2) out.l = '1';
  	if(flags & 0x8) out.a = '1';
  	return out;
  }