public void TestShiftRegister(byte lowByte, byte highByte, byte offset, byte expectedResult)
{
var app = new SpaceInvadersApplication(System.Array.Empty <byte>());
app.Out(2, offset);
app.Out(4, lowByte);
app.Out(4, highByte);
Assert.Equal(expectedResult, app.In(3));
}
public void TestMemoryBusReadWrite()
{
var program = new byte[0x2000];
var memoryBus = new SpaceInvadersApplication(program);
for (ushort ii = 0; ii < ushort.MaxValue; ii++)
{
memoryBus.WriteByte((byte)(ii + 1), ii);
if (ii < 0x2000)
{
Assert.Equal(0, memoryBus.ReadByte(ii));
}
else
{
Assert.Equal((byte)(ii + 1), memoryBus.ReadByte(ii));
}
}
}
