[Python] Logic Gate 함수 구현 연습

Logic Gate : AND, OR, NAND, XOR, HALF_ADDER, FULL_ADDER

등등 구현 연습

 

def and_gate(x1, x2, bias):
    if (x2 + x1 - bias) > 1: return True
    else: return False

def or_gate(x1, x2, bias):
    if (x2 + x1 - bias) > 0: return True
    else: return False

def nand_gate(x1, x2, bias):
    return not and_gate(x1, x2, bias)

def xor_gate(x1, x2, bias):
    _or = or_gate(x1, x2, bias)
    _nand = nand_gate(x1, x2, bias)
    return and_gate(_or, _nand, bias)

def half_adder(x1, x2, bias):
    s = or_gate(x1, x2, bias)
    c = and_gate(x1, x2, bias)
    return s, c

def full_adder(*bits, bias):
    s, c = half_adder(bits[0], bits[1], bias)
    S = [s]

    if len(bits) > 2:
        for bit in bits[2:]:
            s, c = half_adder(c, bit, bias)
            S.append(s)
    
    # add carry over
    S.append(c)
    return sum(S)
    
    
bias = 0
TT = [True, True, bias]
FT = [False, True, bias]
TF = [True, False, bias]
FF = [False, False, bias]

exec_data = TT

and_x = and_gate(*exec_data)
or_x = or_gate(*exec_data)
nand_x = nand_gate(*exec_data)
xor_x = xor_gate(*exec_data)

print(f'X1, X2, bias : {exec_data}')
print(f'AND  : {and_x}')
print(f'OR   : {or_x}')
print(f'NAND : {nand_x}')
print(f'XOR  : {xor_x}')
print(f'HALF adder(sum, carry over) : {half_adder(*exec_data)}')
print(f'FULL adder : {full_adder(False, True, True, True, True, True, True, bias=bias)}')

 

 

출력값

X1, X2, bias : [True, True, 0]
AND  : True
OR   : True
NAND : False
XOR  : False
HALF adder(sum, carry over) : (True, True)
FULL adder : 6

 

---