def __init__(self):
self.write = None
self.enable = None
self.clk = None
self.d = [None] * Memory.WORD_SIZE
self.o = [None] * Memory.WORD_SIZE
self.a = [None] * Memory.ADDR_SIZE
self.__words = [WideRegister(Memory.WORD_SIZE) for _ in range(Memory.MEM_SIZE)]
self.__decoder = Decoder4By16()
self.__enable_ands = [AndGate() for _ in range(Memory.MEM_SIZE)]
self.__write_ands = [AndGate() for _ in range(Memory.MEM_SIZE)]
def __init__(self):
self.xor1 = XorGate()
self.xor2 = XorGate()
self.and1 = AndGate()
self.and2 = AndGate()
self.or_gate = OrGate()
self.a = None
self.b = None
self.cin = None
self.s = None
self.cout = None
def __init__(self):
self.load = None
self.clk = None
self.d = None
self.q = None
self.enable = None
self.__not_gate = NotGate()
self.__and_gate1 = AndGate()
self.__and_gate2 = AndGate()
self.__or_gate = OrGate()
self.__d_latch = DLatch()
self.__three_state = ThreeState()
def __init__(self):
self.x = None
self.y = None
self.bin = None
self.d = None
self.bout = None
self.__xor1 = XorGate()
self.__xor2 = XorGate()
self.__and1 = AndGate()
self.__and2 = AndGate()
self.__or1 = OrGate()
self.__not2 = NotGate()
self.__not3 = NotGate()
class FullSubtractor:
def __init__(self):
self.x = None
self.y = None
self.bin = None
self.d = None
self.bout = None
self.__xor1 = XorGate()
self.__xor2 = XorGate()
self.__and1 = AndGate()
self.__and2 = AndGate()
self.__or1 = OrGate()
self.__not2 = NotGate()
self.__not3 = NotGate()
def eval(self):
self.__xor1.a = self.x
self.__xor1.b = self.y
self.__xor1.eval()
self.__xor2.a = self.__xor1.q
self.__xor2.b = self.bin
self.__xor2.eval()
self.__not2.a = self.x
self.__not2.eval()
self.__and1.a = self.__not2.q
self.__and1.b = self.y
self.__and1.eval()
self.__not3.a = self.__xor1.q
self.__not3.eval()
self.__and2.a = self.bin
self.__and2.b = self.__not3.q
self.__and2.eval()
self.__or1.a = self.__and1.q
self.__or1.b = self.__and2.q
self.__or1.eval()
self.d = self.__xor2.q
self.bout = self.__or1.q
def __init__(self):
self.a = None
self.b = None
self.d0 = None
self.d1 = None
self.d2 = None
self.d3 = None
self.__nots = [NotGate() for _ in range(2)]
self.__ands = [AndGate() for _ in range(4)]
class FullAdder:
def __init__(self):
self.xor1 = XorGate()
self.xor2 = XorGate()
self.and1 = AndGate()
self.and2 = AndGate()
self.or_gate = OrGate()
self.a = None
self.b = None
self.cin = None
self.s = None
self.cout = None
def eval(self):
self.xor1.a = self.a
self.xor1.b = self.b
self.xor1.eval()
self.xor2.a = self.xor1.q
self.xor2.b = self.cin
self.xor2.eval()
self.s = self.xor2.q
self.and1.a = self.xor1.q
self.and1.b = self.cin
self.and1.eval()
self.and2.a = self.a
self.and2.b = self.b
self.and2.eval()
self.or_gate.a = self.and1.q
self.or_gate.b = self.and2.q
self.or_gate.eval()
self.cout = self.or_gate.q
class Register:
def __init__(self):
self.load = None
self.clk = None
self.d = None
self.q = None
self.enable = None
self.__not_gate = NotGate()
self.__and_gate1 = AndGate()
self.__and_gate2 = AndGate()
self.__or_gate = OrGate()
self.__d_latch = DLatch()
self.__three_state = ThreeState()
def eval(self):
self.__not_gate.a = self.load
self.__not_gate.eval()
self.__and_gate1.a = self.__d_latch.q
self.__and_gate1.b = self.__not_gate.q
self.__and_gate1.eval()
self.__and_gate2.a = self.load
self.__and_gate2.b = self.d
self.__and_gate2.eval()
self.__or_gate.a = self.__and_gate1.q
self.__or_gate.b = self.__and_gate2.q
self.__or_gate.eval()
self.__d_latch.d = self.__or_gate.q
self.__d_latch.e = self.clk
self.__d_latch.eval()
self.__three_state.a = self.__d_latch.q
self.__three_state.b = self.enable
self.__three_state.eval()
self.q = self.__three_state.c
def __init__(self):
self.enable = None
self.a = None
self.b = None
self.d0 = None
self.d1 = None
self.d2 = None
self.d3 = None
self.__decoder_2_by_4 = Decoder2By4()
self.__enable_ands = [AndGate() for _ in range(4)]
def __init__(self):
self.clk = None
self.out = [None for _ in range(Counter.REG_WIDTH)]
self.__flip_flops = [JKFlipFlop() for _ in range(Counter.REG_WIDTH)]
self.__and_gates = [AndGate() for _ in range(Counter.REG_WIDTH - 2)]