public void LoadTapFileTest()
{
var filename = @"Binaries\froggers.tap";
var tf = new TapFormat();
var bytes = File.ReadAllBytes(filename);
tf.ReadFile(bytes);
Assert.AreEqual(tf.Blocks.Count, 2);
}
public void LoadTape(byte[] data)
{
tf.ReadFile(data);
bool ear = false;
long tstate = 0;
long b = 0;
int bitmask;
bool signal;
foreach (var block in tf.Blocks)
{
for (int pilotcount = 0; pilotcount < (block.Data[0] < 128 ? 8063 : 3223); pilotcount++)
{
ear = !ear;
tstate += 2168;
EarValues.Add(new EarValue()
{
Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Pilot
});
}
//Add sync1
ear = !ear;
tstate += 667;
EarValues.Add(new EarValue()
{
Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Sync1
});
//Add sync2
ear = !ear;
tstate += 735;
EarValues.Add(new EarValue()
{
Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Sync2
});
b = 0;
for (; b < block.Data.Length; b++)
{
for (bitmask = 0x80; bitmask > 0; bitmask = bitmask >> 1)
{
signal = (block.Data[b] & bitmask) == bitmask;
//Add two pulses
ear = !ear;
tstate += signal ? 1710 : 855;
EarValues.Add(new() { Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Data });
ear = !ear;
tstate += signal ? 1710 : 855;
EarValues.Add(new() { Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Data });
}
}
ear = !ear;
tstate += 3500;
EarValues.Add(new() { Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Pause });
//Pause
ear = false;
tstate += 3500 * 1000; //1second;
EarValues.Add(new() { Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Pause });
}
//Add Termination
ear = !ear;
tstate += 947;
EarValues.Add(new() { Ear = ear, TState = tstate, Pulse = PulseTypeEnum.Termination });
EarValues.Add(new() { Ear = false, TState = tstate, Pulse = PulseTypeEnum.Stop });
}