Bug - Opcode Exception fix

[robertvo]

my Fix starting from line 133 in MethodInstructions.css:

            int valor;
            if (int.TryParse(insert.textBox1.Text, out valor))
            {
                if (opcode.OperandType == OperandType.ShortInlineI)
                {
                    sbyte x = (sbyte)valor;
                    sentence = worker.Create(opcode, x);
                }
                else sentence = worker.Create(opcode, valor);
            }
            else
            {
                sentence = worker.Create(opcode, insert.textBox1.Text);
            }

[javiermarinros]

Fixed! Thank you!