Question

On addition of -33 and -40 using 2's complement we get​

Answer 1

From the given question the correct answer is :  

On addition of -33 and -40 using 2's complement we get​ -1001001

Answer 2

On addition of -33 and -40 using 2's complement we get​ -1001001

Explanation:

To calculate the 2's complement we :

• Simply invert each bit of given binary number, which will be 01010001.
• Then add 1 to the LSB of obtained result of the prior binary number.
• Similarly we will do for -33 and -40 The obtained result of the addition of both of them is: -1001001
• Two's complement allows negative and positive numbers to be added together without any special logic.
• The same goes with the subtraction.
• The subtraction and addition of both positive and negative numbers can all be done by the same circuit in the cpu.