// Adds an instruction passed from an instruction view and updates the view
public void addInstruction(string label, string opcode, string operand, int position)
{
// Add instruction to the instruction list
ProgramInstruction x = new ProgramInstruction(label, opcode, operand);
switch (position)
{
case 1:
// Add before currently selected instruction
if (programView.SelectedIndices.Count > 0)
{
if ((programView.SelectedIndices[0]) >= 0)
{
instructions.Insert(programView.SelectedIndices[0], x);
}
else
{
MessageBox.Show("Error 18, Could not add instruction at that place. Check it is possible");
}
}
else
{
MessageBox.Show("Error 18, Could not add instruction at that place. Check it is possible");
}
break;
case 2:
// Add after currently selected instruction
if (programView.SelectedIndices.Count > 0)
{
instructions.Insert(programView.SelectedIndices[0] + 1, x);
}
else
{
MessageBox.Show("Error 18, Could not add instruction at that place. Check it is possible");
}
break;
case 3:
// Add at end
instructions.Add(x);
break;
default:
instructions.Add(x);
break;
}
updateProgramView();
// Set the ram view needs to update
RAM_OutOfDate = true;
}
// Display a dialog for opening a saved project and open it
private void openButton_Click(object sender, EventArgs e)
{
if (new_program() == DialogResult.Yes)
{
try
{
OpenFileDialog open = new OpenFileDialog();
open.RestoreDirectory = true;
open.Filter = "Assembly Simulator Files(*.as)\"|*.as";
if (open.ShowDialog() == DialogResult.OK)
{
StreamReader s;
string i;
s = File.OpenText(open.FileName);
i = s.ReadLine();
while (i != null)
{
// Add instruction
ProgramInstruction x = new ProgramInstruction(
i.Substring(0, 20).Trim(),
i.Substring(19, 20).Trim(),
i.Substring(39, 20).Trim()
);
instructions.Add(x);
// Read in new instruction
i = s.ReadLine();
}
updateProgramView();
s.Close();
}
}
catch
{
MessageBox.Show("Error 23, The file you attempted to load was invalid.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}