def test_8XY0(self):
chip = Chip8()
chip.vy = 1
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vy] = address
chip._8XY0()
self.assertEqual(chip.registers[chip.vx], address & 0xFF)
def test_8XYE(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vx] = address
chip._8XYE()
self.assertEqual(chip.registers[0xf], address & 0x0001)
self.assertEqual(chip.registers[chip.vx], address << 1)
def test_FX33(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vx] = address
chip._FX33()
self.assertEqual(chip.mem[chip.index], address // 100)
self.assertEqual(chip.mem[chip.index+1], (address % 100) // 10)
self.assertEqual(chip.mem[chip.index+2], address % 10)
def test_EXA1(self):
chip = Chip8()
chip.pc = 0
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vx] = address
chip._EXA1()
if chip.key_inputs[address & 0xf] == 1:
self.assertEqual(chip.pc, 0)
def test_7XNN(self):
chip = Chip8()
test_vx = 0
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
chip._7XNN()
test_vx += address & 0xFF
self.assertEqual(chip.registers[chip.vx],test_vx & 0xFF)
def test_FX1E(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vx] = address
chip._FX1E()
if chip.index > 0xfff:
self.assertEqual(chip.registers[0xf] , 1)
self.assertEqual(chip.index, (chip.index & 0xfff))
def test_4XNN(self):
chip = Chip8()
chip.pc = 0
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
chip.registers[chip.vx] = 0x4f33
chip._4XNN()
if chip.registers[chip.vx] == chip.opcode & 0x00ff:
self.assertEqual(chip.pc, 0)
def test_2NNN(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
chip.pc = 0
chip.stack.append(chip.pc)
chip._2NNN()
self.assertEqual(chip.stack.pop(), 0)
self.assertEqual(chip.pc,address & 0x0fff)
def test_8XY1(self):
chip = Chip8()
chip.vy = 1
res = 0
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vy] = address
res |= address
chip._8XY1()
self.assertEqual(chip.registers[chip.vx], res & 0xFF)
def test_5XY0(self):
chip = Chip8()
chip.pc = 0
chip.vx = 1
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vy] = address
chip.registers[chip.vx] = 0x5f30
chip._5XY0()
if chip.registers[chip.vx] == chip.registers[chip.vy]:
self.assertEqual(chip.pc, 2)
def test_9XY0(self):
chip = Chip8()
chip.pc = 0
chip.vx = 1
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vy] = address
chip.registers[chip.vx] = 0x9f33
chip._9XY0()
if chip.registers[chip.vx] == address:
self.assertEqual(chip.pc, 0)
def test_8XY5(self):
chip = Chip8()
chip.vy = 1
for addressX in range(0x0, 0xFF, 0x10):
for addressY in range(0x0, 0xFF, 0x10):
chip.registers[chip.vx] = addressX
chip.registers[chip.vy] = addressY
chip._8XY5()
if addressY > addressX:
self.assertEqual(chip.registers[0xf], 0)
else:
self.assertEqual(chip.registers[0xf], 1)
self.assertEqual(chip.registers[chip.vx], (addressX - addressY) & 0xFF)
def main():
renderer = Render.Renderer(64,32, 10)
input = Input.Input()
chip8 = Chip8.chip8(chip8_fontset)
chip8.load_game("pong.rom")
running = 1
clock = pygame.time.Clock()
renderer.clear_screen()
while running:
#clock.tick()
chip8.emulate_cycle(renderer.sound)
#if chip8.opcode != 0:
# print(chip8.opcode)
if (chip8.draw_flag):
renderer.draw_graphics(chip8.gfx, (255,255,255))
running = input.event_handler()
if input.key_down:
chip8.key[input.key_pressed] = 1
else:
chip8.key[input.key_pressed] = 0
def test_FX18(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vx] = address
chip._FX18()
self.assertEqual(chip.sound_timer, address)
def test_BNNN(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
chip._BNNN()
self.assertEqual(chip.pc, (address & 0x0fff) + chip.registers[0])
def test_ANNN(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
chip._ANNN()
self.assertEqual(chip.index, address & 0x0fff)
def test_CXNN(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
self.assertEqual(chip.registers[chip.vx], (chip.r & (address & 0x00ff)) & 0xff)
def test_6XNN(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.opcode = address
chip._6XNN()
self.assertEqual(chip.registers[chip.vx], address & 0x00ff)
def test_FX07(self):
chip = Chip8()
for timer in range (0x0, 0xFF, 0x10):
chip.delay_timer = timer
chip._FX07()
self.assertEqual(chip.registers[chip.vx], timer)
def test_00EE(self):
chip = Chip8()
for address in range(0x200, 0xFFFF, 0x10):
chip.stack.append(address)
chip._00EE()
self.assertEqual(chip.pc, address)
def test_FX65(self):
chip = Chip8()
chip._FX65()
for i in range(chip.vx):
self.assertEqual(chip.mem[chip.index + i], chip.registers[i])
def test_FX0A(self):
chip = Chip8()
test_ret = chip.get_key()
chip._FX0A()
if test_ret >= 0:
self.assertEqual(chip.registers[chip.vx], test_ret)
def test_FX29(self):
chip = Chip8()
for address in range(0x0, 0xFFFF, 0x10):
chip.registers[chip.vx] = address
chip._FX29()
self.assertEqual(chip.index, ((address*5) & 0xfff))