class TestLogicalArithmeticOpcodes(unittest.TestCase):
def setUp(self):
self.cpu = Cpu(MMU())
self.cpu.mmu.rom = [0] * 128
self.cpu.mmu.load('C:/Users/cjpowell/workspace/Python/gbpy/resources/test_file.gb')
def test_direct_xor(self):
self.cpu._op_a8()
self.assertEqual(self.cpu.registers.a, 0)
self.assertEqual(self.cpu.registers.zero_flag, 1)
self.cpu.registers.b = 0xf
self.cpu._op_a8()
self.assertEqual(self.cpu.registers.a, 0xf)
self.assertEqual(self.cpu.registers.zero_flag, 0)
self.cpu.registers.b = 0x5f
self.cpu._op_a8()
self.assertEqual(self.cpu.registers.a, 0x50)
def test_indirect_xor(self):
self.cpu._op_ae()
self.assertEqual(self.cpu.registers.a, 0xff)
self.assertEqual(self.cpu.registers.zero_flag, 0)
self.cpu._op_ae()
self.assertEqual(self.cpu.registers.a, 0)
self.assertEqual(self.cpu.registers.zero_flag, 1)
def test_direct_or(self):
self.cpu.registers.b = 0
self.cpu._op_b0()
self.assertEqual(self.cpu.registers.a, 0)
self.assertEqual(self.cpu.registers.zero_flag, 1)
self.cpu.registers.b = 0x8
self.cpu._op_b0()
self.assertEqual(self.cpu.registers.a, 0x8)
self.assertEqual(self.cpu.registers.zero_flag, 0)
self.cpu.registers.b = 0xf7
self.cpu._op_b0()
self.assertEqual(self.cpu.registers.a, 0xff)
def test_indirect_or(self):
self.cpu._op_b6()
self.assertEqual(self.cpu.registers.a, 0xff)
self.assertEqual(self.cpu.registers.zero_flag, 0)
self.cpu._op_b6()
self.assertEqual(self.cpu.registers.a, 0xff)
def test_and(self):
self.cpu.registers.b = 0xf
self.cpu._op_a0()
self.assertEqual(self.cpu.registers.a, 0)
self.assertEqual(self.cpu.registers.zero_flag, 1)
self.cpu.registers.a = 0xff
self.cpu._op_a6()
self.assertEqual(self.cpu.registers.a, 0xff)
self.assertEqual(self.cpu.registers.zero_flag, 0)
self.cpu.registers.pc = 1
self.cpu._op_e6()
self.assertEqual(self.cpu.registers.a, 0)
self.assertEqual(self.cpu.registers.zero_flag, 1)
self.assertEqual(self.cpu.registers.pc, 2)
def test_compare(self):
self.cpu._op_b8()
self.assertEqual(self.cpu.registers.a, 0)
self.assertEqual(self.cpu.registers.zero_flag, 1)
self.assertEqual(self.cpu.registers.carry_flag, 0)
self.cpu._op_be()
self.assertEqual(self.cpu.registers.zero_flag, 0)
self.assertEqual(self.cpu.registers.carry_flag, 1)
self.assertEqual(self.cpu.registers.hc_flag, 1)
self.cpu.registers.a = 0xff
self.cpu._op_fe()
self.assertEqual(self.cpu.registers.zero_flag, 1)
self.assertEqual(self.cpu.registers.carry_flag, 0)
