public CartRom(Stream romDataStream, Boolean headerOnly, FormatVerifyFlag verifyFlag)
{
m_HeaderOnly = headerOnly;
/* Check some properties about the source stream */
if (romDataStream.Length < (HeaderSize + BootRom.Size))
{
throw new ArgumentOutOfRangeException("Rom is too small to be valid");
}
if (!romDataStream.CanRead)
{
throw new ArgumentException("The source rom stream is not readable");
}
/* Verify the rom format and make the nessarily action */
RomFormat format = RomFormat.Unknown;
switch (verifyFlag)
{
case FormatVerifyFlag.Skip: break;
case FormatVerifyFlag.Header: format = Cartridge.DetectFormatHeader(romDataStream); break;
case FormatVerifyFlag.Cic: format = Cartridge.DectectFormatCIC(romDataStream); break;
case FormatVerifyFlag.Crc: format = Cartridge.DectectFormatCRC(romDataStream); break;
}
if (verifyFlag != FormatVerifyFlag.Skip && format == RomFormat.Unknown)
{
logger.Warn("treid to verify rom but failed, emulator may be unstable");
}
else
{
romDataStream = Cartridge.GetCorrectStream(romDataStream, format);
}
/* Create the header */
CreateHeader(romDataStream);
/* Create the bootcode information */
m_BootRom = new BootRom(romDataStream);
if (!headerOnly)
{
m_RomStream = romDataStream;
romDataStream.Position = 0;
}
}
