Assuming we have a $8-$bit CPU with $8-$bit data memory $($working in a $8-$bit world$).$

Perform the following binary subtraction, showing the operation on every single bit, and place its carry correctly above where it needs to be located.

If there is an overflow, make sure to specify it$.$

$87$

$120$

$?$

This subtraction must be all done in binary with $2\text{'}$s complement of the second number and addition operation.

The numbers shown are in decimal, so they need to be converted to binary.

First convert each decimal number to binary and show how you do that.

Second, convert the second number to $2\text{'}$s complement and show how you do that.

Third, add the two numbers using binary addition $($showing every carry$),$ and show how you are adding each bit.

Show ALL the work including carry, and overflow $($if any$).$

I need to know ALL the steps and their details you arrived at your final answer.

No work $=$ No credit $=>$ even if your answer is correct.

DO NOT USE CALCULATOR.

Insert a screenshot or image of your work.

If you are doing this on paper and making an image of it$,$ make sure your work is legible.