procedure THiAsmClass.doMixing(var dt: TData; idx: word);
var 
  inDt,outDt: integer;
  arrByteIn:  array[0..3] of Byte absolute inDt;
  arrByteOut: array[0..3] of Byte absolute outDt;
begin
  inDt := ToInteger(dt);
  arrByteOut[0] := arrByteIn[3];
  arrByteOut[1] := arrByteIn[2];
  arrByteOut[2] := arrByteIn[1];
  arrByteOut[3] := arrByteIn[0];
  _hi_onEvent(onRes,outDt);
end;