Convert the following to Binary using 2’s Complement.

Continue reading Binary H/W 21/8

# Tag Archives: 2s Complement

# Binary & 2’s Complement Revision

You can find the new powerpoint here.

I will embed the flash file in this post in due course, at the moment it doesn’t want to play ball.

# 2’s Complement

Right I am adding the finishing touches to the revision powerpoint I promised you. However, while I was going over sign and magnitude, I came across this.

http://en.wikipedia.org/wiki/Signed_number_representations

“Useful” I hear you say, but there is more to this than meets the eye. There is on that page a method for converting a number to 2’s complement that I haven’t see in quite a while and I thought I might share it with you.

- Starting from the right, find the first ‘1’
- Invert all of the bits to the left of that one

- 00101010
- 11010110