private void InitMedia()
{
switch (inputFileInfo.Extension.ToUpper())
{
case @".CRT":
Cart cart = Cart.Load(inputFileInfo.Data);
if (cart != null)
{
board.cartPort.Connect(cart);
}
break;
case @".TAP":
CassettePort.Tape tape = CassettePort.Tape.Load(inputFileInfo.Data);
if (tape != null)
{
board.cassPort.Connect(tape);
}
break;
case @".PRG":
if (inputFileInfo.Data.Length > 2)
{
loadPrg = true;
}
break;
}
}
internal void Connect(Tape tape)
{
this.tape = tape;
}
// Try to construct a tape file from file data. Returns null if not a tape file, throws exceptions for bad tape files.
// (Note that some error conditions aren't caught right here.)
static public Tape Load(byte[] tapeFile)
{
Tape result = null;
if (System.Text.Encoding.ASCII.GetString(tapeFile, 0, 12) == "C64-TAPE-RAW")
{
byte version = tapeFile[12];
if (version > 1) throw new Exception("This tape has an unsupported version");
uint size = BitConverter.ToUInt32(tapeFile, 16);
if (size + 20 != tapeFile.Length)
{
throw new Exception("Tape file header specifies a length that doesn't match the file size");
}
result = new Tape(version, tapeFile, 20, (uint)tapeFile.Length);
}
return result;
}