/Python/Python convert integer to signed base 2 complement

Python convert integer to signed base 2 complement

def twos_comp(val, bits):
    """compute the 2's complement of int value val"""
    if (val & (1 << (bits - 1))) != 0: # if sign bit is set e.g., 8bit: 128-255
        val = val - (1 << bits)        # compute negative value
    return val                         # return positive value as is
  
binary_string = '1010101010' # or whatever... no '0b' prefix
out = twos_comp(int(binary_string,2), len(binary_string))

-1

Similar codes

204 votes258 views6 answers
Random python
Python
7 votes181 views3 answers
Prettytable python
Python
0 vote158 views1 answer
Pandas loc index not in
Python
14 votes200 views3 answers
Discord.py find user by name
Python
0 vote167 views1 answer
Python list replace nan with 0
Python
0 vote154 views1 answer
Comment transformer un chaine de caractere en liste python
Python
0 vote165 views1 answer
How to code discord bot 8ball python
Python
0 vote176 views1 answer
Django get child element
Python Django
0 vote163 views1 answer
How to encode a string in python
Python
1 vote148 views2 answers
SSL: CERTIFICATE_VERIFY_FAILED mongo atlas
Python