public void OTDRTest()
{
PrivateObject z = new PrivateObject(new Z80(new Memory48K()));
Z80_Accessor target = new Z80_Accessor(z);
target.C = 0x07;
target.B = 0x03;
target.Set16BitRegisters(2, 0x1000);
target.Memory[0x0ffe] = 0x51;
target.Memory[0x0fff] = 0xa9;
target.Memory[0x1000] = 0x03;
// Simulate PC-=2 (repeat instruction)
target.OTDR();
target.OTDR();
target.OTDR();
Assert.IsTrue(target.Get16BitRegisters(2) == 0x0ffd
&& target.B == 0, "Error:OTDR");
}