Two’s complement binary representation of the decimal numbers -8 to 7?

Question

can anyone help me with creating a table of two’s complement binary representation of the decimal numbers -8 to 7.

and How many bits are required to do this? Identify the “sign bit” and the most significant bit.

Could anyone help me with this question thanks

Answer 1

4 bits needed.

Leftmost is sign bit: 1 = negative, 0 = positive.

take number in binary, such as{ 0100 for 4

negate each bit: 1011

Add one: 1100

This configuration allows adding a positive and negative number together with a normal adder.

See table at link: