public void SBC_A_nTest()
{
PrivateObject z = new PrivateObject(new Z80(new Memory48K()));
Z80_Accessor target = new Z80_Accessor(z);
target.Memory[0x5000] = 0x05;
target.A = 0x16;
target.PC = 0x5000;
target.Set(Flag.Carry);
target.SBC_A_n();
Assert.IsTrue(target.A == 0x10, "Error: SBC A n");
}