private void UpdateOffsetAndSpeed()
{
offset = Data.GetRomSettingOffset(mode);
if (offset >= data.Length)
{
speed = Data.ROMSpeed.Unknown;
okay.Enabled = false;
}
else
{
okay.Enabled = true;
speed = (data[offset] & 0x10) != 0 ? Data.ROMSpeed.FastROM : Data.ROMSpeed.SlowROM;
}
}
private static bool ValidateROM(string filename, string romName, int checksums, Data.ROMMapMode mode, out byte[] rom, OpenFileDialog open)
{
bool validFile = false, matchingROM = false;
rom = null;
open.InitialDirectory = currentFile;
while (!matchingROM)
{
string error = null;
matchingROM = false;
while (!validFile)
{
error = null;
validFile = false;
try
{
byte[] smc = File.ReadAllBytes(filename);
rom = new byte[smc.Length & 0x7FFFFC00];
if ((smc.Length & 0x3FF) == 0x200)
{
for (int i = 0; i < rom.Length; i++)
{
rom[i] = smc[i + 0x200];
}
}
else if ((smc.Length & 0x3FF) != 0)
{
error = "The linked ROM has an unusual size. It can't be opened.";
}
else
{
rom = smc;
}
if (error == null)
{
validFile = true;
}
}
catch (Exception)
{
error = string.Format("The linked ROM file '{0}' couldn't be found.", filename);
}
if (!validFile)
{
DialogResult result = MessageBox.Show(string.Format("{0} Link a new ROM now?", error), "Error", MessageBoxButtons.YesNo, MessageBoxIcon.Error);
if (result == DialogResult.No)
{
return(false);
}
result = open.ShowDialog();
if (result == DialogResult.OK)
{
filename = open.FileName;
}
else
{
return(false);
}
}
}
validFile = false;
int offset = Data.GetRomSettingOffset(mode);
if (rom.Length <= offset + 10)
{
error = "The linked ROM is too small. It can't be opened.";
}
string myName = "";
for (int i = 0; i < 0x15; i++)
{
myName += (char)rom[offset - 0x15 + i];
}
int myChecksums = Util.ByteArrayToInteger(rom, offset + 7);
if (myName != romName)
{
error = string.Format("The linked ROM's internal name '{0}' doesn't match the project's internal name of '{1}'.", myName, romName);
}
else if (checksums != myChecksums)
{
error = string.Format("The linked ROM's checksums '{0:X8}' don't match the project's checksums of '{1:X8}'.", myChecksums, checksums);
}
if (error == null)
{
matchingROM = true;
}
if (!matchingROM)
{
DialogResult result = MessageBox.Show(string.Format("{0} Link a new ROM now?", error), "Error", MessageBoxButtons.YesNo, MessageBoxIcon.Error);
if (result == DialogResult.No)
{
return(false);
}
result = open.ShowDialog();
if (result == DialogResult.OK)
{
filename = open.FileName;
}
else
{
return(false);
}
}
}
if (currentROMFile != filename)
{
currentROMFile = filename;
unsavedChanges = true;
}
return(true);
}
