public void TestSCF()
{
var device = TestUtils.CreateTestDevice();
var cpu = device.CPU;
var alu = new ALU(cpu);
alu.SCF();
Assert.True(cpu.Registers.GetFlag(CpuFlags.CarryFlag));
alu.SCF();
Assert.True(cpu.Registers.GetFlag(CpuFlags.CarryFlag));
}