private void LoadFileButton_Click(object sender, EventArgs e)
{
OpenFileDialog myBox = new OpenFileDialog();
myBox.InitialDirectory = "c:\\";
myBox.RestoreDirectory = true;
myBox.Filter = "Applications (*.exe)|*.exe|All files (*.*)|*.*";
myBox.ShowDialog();
theseOptions.SetFileName(myBox.FileName);
if (theseOptions.GetFileName() != "")
{
myComputer = new Computer(theseOptions);
myComputer.endRun += new Computer.EventHandler(UpdateAllTheThings);
myComputer.putChar += new Computer.EventHandler(charToScreen);
this.OpenedFile.Text = theseOptions.GetFileName();
this.OpenedFile.Show();
this.ResetButton_Click(this.ResetButton, EventArgs.Empty);
}
else
{
this.RunButton.Enabled = false;
this.StepButton.Enabled = false;
this.StopButton.Enabled = false;
this.ResetButton.Enabled = false;
this.LoadFileButton.Enabled = true;
this.OpenedFile.Text = ".Please select a file to load";
this.OpenedFile.Show();
}
}
//Method: Load
//Purpose: extracts ram and program headers from the elf file and calls to instantiate ram
public void Load()
{
//COMPLIMENT OF J
//opens given filename and identifies key elements
string elfFilename = myOptions.GetFileName();
try
{
Debug.WriteLine("Loader.Load: Opening " + elfFilename + "...");
using (FileStream strm = new FileStream(elfFilename, FileMode.Open))
{
ELF elfHeader = new ELF();
byte[] data = new byte[Marshal.SizeOf(elfHeader)];
Debug.WriteLine("Loader.Load: Reading " + elfFilename + "...");
// Read ELF header data
strm.Read(data, 0, data.Length);
Debug.WriteLine("Loader.Load: Converting to struct");
// Convert to struct
elfHeader = ByteArrayToStructure <ELF>(data);
//this really should be changed to be in memory class
programCounter = elfHeader.e_entry + 8;
myRam.SetFlags(elfHeader.e_flags);
Debug.WriteLine("Loader.Load: Entry point: " + elfHeader.e_entry.ToString("X4"));
Debug.WriteLine("Loader.Load: Number of program header entries: " + elfHeader.e_phnum);
Debug.WriteLine("Loader.Load: Reading program header entries...");
// Read program header entries into programHeaders
strm.Seek(elfHeader.e_phoff, SeekOrigin.Begin);
for (int i = 0; i < elfHeader.e_phnum; i++)
{
data = new byte[elfHeader.e_phentsize];
strm.Read(data, 0, (int)elfHeader.e_phentsize);
programHeaders.Add(ByteArrayToStructure <ELFTWO>(data));
}
Debug.WriteLine("Loader.Load: Reading memory from program headers...");
//read memory from program header and send to
foreach (ELFTWO toRam in programHeaders)
{
data = new byte[toRam.p_memsz];
strm.Seek(toRam.p_offset, SeekOrigin.Begin);
strm.Read(data, 0, (int)toRam.p_memsz);
myRam.PopulateRam(data, toRam.p_vaddr);
}
Console.WriteLine(myRam.getMDF());
//testing purposes
// Debug.WriteLine(myRam.getMDF());
}
}
catch
{
Console.WriteLine("error loading file. please check your file/filename and try again");
}
}
public ARMSimForm(Options myOptions)
{
this.KeyPreview = true;
this.KeyDown += new KeyEventHandler(ARMSimForm_KeyDown);
theseOptions = myOptions;
InitializeComponent();
Form.CheckForIllegalCrossThreadCalls = false;
//setup views
for (int i = 0; i < 16; i++)
{
this.RegisterGridView.Rows.Add();
}
for (int i = 0; i < 4; i++)
{
this.FlagGridView.Rows.Add();
}
for (int i = 0; i < 16; i++)
{
this.MemGridView.Rows.Add();
}
for (int i = 0; i < 10; i++)
{
this.StackGridView.Rows.Add();
}
for (int i = 0; i < 9; i++)
{
this.disassemblyView.Rows.Add();
}
//allow to open without any cmd line options
if (theseOptions.GetFileName() == "")
{
this.RunButton.Enabled = false;
this.StepButton.Enabled = false;
this.StopButton.Enabled = false;
this.ResetButton.Enabled = false;
this.LoadFileButton.Enabled = true;
}
else
{
//these two lines used to be in run
myComputer = new Computer(theseOptions);
myComputer.endRun += new Computer.EventHandler(UpdateAllTheThings);
myComputer.putChar += new Computer.EventHandler(charToScreen);
//starts running on file that opened program
this.RunButton_Click(this.RunButton, EventArgs.Empty);
}
}
public ARMSimForm(Options myOptions)
{
this.KeyPreview = true;
this.KeyDown += new KeyEventHandler(ARMSimForm_KeyDown);
theseOptions = myOptions;
InitializeComponent();
Form.CheckForIllegalCrossThreadCalls = false;
//setup views
for (int i = 0; i < 16; i++)
{
this.RegisterGridView.Rows.Add();
}
for (int i = 0; i < 4; i++)
{
this.FlagGridView.Rows.Add();
}
for (int i = 0; i < 16; i++)
{
this.MemGridView.Rows.Add();
}
for (int i = 0; i < 10; i++)
{
this.StackGridView.Rows.Add();
}
for (int i = 0; i < 9; i++)
{
this.disassemblyView.Rows.Add();
}
//allow to open without any cmd line options
if (theseOptions.GetFileName() == "")
{
this.RunButton.Enabled = false;
this.StepButton.Enabled = false;
this.StopButton.Enabled = false;
this.ResetButton.Enabled = false;
this.LoadFileButton.Enabled = true;
}
else
{
//these two lines used to be in run
myComputer = new Computer(theseOptions);
myComputer.endRun += new Computer.EventHandler(UpdateAllTheThings);
myComputer.putChar += new Computer.EventHandler(charToScreen);
//starts running on file that opened program
this.RunButton_Click(this.RunButton, EventArgs.Empty);
}
}