private void getData(object sender, EventArgs e)
{
string offset_str = this.dataOffset.Text;
string length_str = this.dataLength.Text;
int offset = HexTools.hexToInt(offset_str);
byte[] data = this.requestData(offset, HexTools.hexToInt(length_str));
accessedData.Add(Tuple.Create(offset, data));
display.Text += "offset: " + HexTools.intToHex(offset) + "\r\ndata: \r\n" +
HexTools.dataToPrettyString(data) + "\r\n";
}