private void ApplyARM9ExpansionButton_Click(object sender, EventArgs e)
{
ARM9PatchData data = new ARM9PatchData();
DialogResult d;
d = MessageBox.Show("Confirming this process will apply the following changes:\n\n" +
"- Backup ARM9 file (arm9.bin.backup will be created)." + "\n\n" +
"- Replace " + (data.branchString.Length / 3 + 1) + " bytes of data at arm9 offset 0x" + data.branchOffset.ToString("X") + " with " + '\n' + data.branchString + "\n\n" +
"- Replace " + (data.initString.Length / 3 + 1) + " bytes of data at arm9 offset 0x" + data.initOffset.ToString("X") + " with " + '\n' + data.initString + "\n\n" +
"- Modify file #" + expandedARMfileID + " inside " + '\n' + RomInfo.syntheticOverlayPath + '\n' + " to accommodate for 88KB of data (no backup)." + "\n\n" +
"Do you wish to continue?",
"Confirm to proceed", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (d == DialogResult.Yes)
{
File.Copy(RomInfo.arm9Path, RomInfo.arm9Path + ".backup", overwrite: true);
try {
DSUtils.WriteToArm9(data.branchOffset, HexStringtoByteArray(data.branchString)); //Write new branchOffset
DSUtils.WriteToArm9(data.initOffset, HexStringtoByteArray(data.initString)); //Write new initOffset
string fullFilePath = RomInfo.syntheticOverlayPath + '\\' + expandedARMfileID.ToString("D4");
File.Delete(fullFilePath);
using (BinaryWriter f = new BinaryWriter(File.Create(fullFilePath))) {
for (int i = 0; i < 0x16000; i++)
{
f.Write((byte)0x00); // Write Expanded ARM9 File
}
}
arm9patchCB.Visible = true;
flag_arm9Expanded = true;
disableARM9patch();
applyARM9ExpansionButton.Text = "Already applied";
switch (RomInfo.gameVersion)
{
case "Plat":
case "HG":
case "SS":
bdhcamARM9requiredLBL.Visible = false;
BDHCAMpatchButton.Enabled = true;
BDHCAMpatchLBL.Enabled = true;
BDHCAMpatchTextLBL.Enabled = true;
break;
}
MessageBox.Show("The ARM9's usable memory has been expanded.", "Operation successful.", MessageBoxButtons.OK, MessageBoxIcon.Information);
} catch {
MessageBox.Show("Operation failed. It is strongly advised that you restore the arm9 backup (arm9.bin.backup).", "Something went wrong",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("No changes have been made.", "Operation canceled", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private int CheckARM9Expansion()
{
if (!flag_arm9Expanded)
{
ARM9PatchData data = new ARM9PatchData();
try {
byte[] branchCode = HexStringtoByteArray(data.branchString);
byte[] branchCodeRead = DSUtils.ReadFromArm9(data.branchOffset, data.branchString.Length / 3 + 1); //Read branchCode
if (branchCodeRead.Length != branchCode.Length)
{
return(0); //0 means ARM9 Expansion has never been applied
}
if (!branchCodeRead.SequenceEqual(branchCode))
{
return(0);
}
byte[] initCode = HexStringtoByteArray(data.initString);
byte[] initCodeRead = DSUtils.ReadFromArm9(data.initOffset, data.initString.Length / 3 + 1); //Read initCode
if (initCodeRead.Length != initCode.Length)
{
return(0);
}
if (!initCodeRead.SequenceEqual(initCode))
{
return(0);
}
} catch {
return(-1); //1 means Check failure
}
}
applyARM9ExpansionButton.Enabled = false;
arm9expansionTextLBL.Enabled = false;
arm9expansionLBL.Enabled = false;
arm9patchCB.Visible = true;
applyARM9ExpansionButton.Text = "Already applied";
flag_arm9Expanded = true;
switch (RomInfo.gameVersion)
{
case "Plat":
case "HG":
case "SS":
bdhcamARM9requiredLBL.Visible = false;
BDHCAMpatchButton.Enabled = true;
BDHCAMpatchLBL.Enabled = true;
BDHCAMpatchTextLBL.Enabled = true;
break;
}
return(1); //arm9 Expansion has already been applied
}