public void TestBitToFlagBit6ToOverflow()
{
Cpu cpu = new Cpu();
cpu.ImpliedAddress = false;
cpu.Fetched = 0x61;
cpu.A = 0x62;
Assert.Equal(0, InstructionSet.BIT(cpu));
Assert.False(cpu.GetFlag(Flags.Z));
Assert.False(cpu.GetFlag(Flags.N));
Assert.True(cpu.GetFlag(Flags.V));
Assert.Equal(0x62, cpu.A);
}
public void TestBitToNegative()
{
Cpu cpu = new Cpu();
cpu.ImpliedAddress = false;
cpu.Fetched = 0x81;
cpu.A = 0x82;
Assert.Equal(0, InstructionSet.BIT(cpu));
Assert.False(cpu.GetFlag(Flags.Z));
Assert.True(cpu.GetFlag(Flags.N));
Assert.False(cpu.GetFlag(Flags.V));
Assert.Equal(0x82, cpu.A);
}
public void TestBitToZero()
{
Cpu cpu = new Cpu();
cpu.ImpliedAddress = false;
cpu.Fetched = 0x01;
cpu.A = 0x02;
Assert.AreEqual(0, InstructionSet.BIT(cpu));
Assert.IsTrue(cpu.GetFlag(Flags.Z));
Assert.IsFalse(cpu.GetFlag(Flags.N));
Assert.IsFalse(cpu.GetFlag(Flags.V));
Assert.AreEqual(0x02, cpu.A);
}