def signed(first, second):
if first[1:] >= second[1:]:
larger = first[1:]
smaller = second[1:]
else:
larger = second[1:]
smaller = first[1:]
result = substract_binary(larger, smaller)
if len(result) > 7:
raise ValueError("Overflow")
return larger[0] + result
def two_complement(binary):
sign = binary[0]
binary = substract_binary(binary, "1")
my_binary = "".join(["1" if bit == "0" else "0" for bit in binary])
number = to_decimal(my_binary)
return number if sign == "0" else number * -1
def one_complement(two_complement):
return substract_binary(two_complement, "1")
def two_complement(signed):
signed = substract_binary(signed, '1')
return signed[0] + ''.join(['1' if bit == '0' else '1'
for bit in signed[1:]])
def signed(two_complement):
one_complement = substract_binary(two_complement, '1')
return one_complement[0] + ''.join(['1' if bit == '0' else '0'
for bit in one_complement[1:]])
