I need help with these qustions 3. (10 points) Carry-lookahead adder versus ripp
ID: 2990796 • Letter: I
Question
I need help with these qustions
3. (10 points) Carry-lookahead adder versus ripple-carry adder a. which one uses more resources b. which one is faster c. which one is better 4. (10 points) 2's complement representation is more suitable for use to represent negative numbers. Why? 5. (10 points) How many bits is the result when you ADD two 4-bit numbers? What is an overflow signal (Explain what is overflow without using the word ''overflow'')? How do you generate the overflow signal? Assuming this is an unsigned addition. 6. (15 points) a. what?s the main difference between latch and flip-flop? b. what is flip-flop setup time? e. what is flip-flop hold time?Explanation / Answer
3)
a) Carry look ahed adder takes more resource then Ripple carry adder.
b) Carry look ahed adder is faster then Rpple carry adder.
C)Carry look ahed adder is better then Ripple carry addder because it is faster.
4) 2's com plement is better way of representation because the subtraction can be done only by adding 2's complement no. wit normal no.
5) when two 4 bit no. added maximum 5-bit will be result and overflow of 1-bit comes n to picture.
6)
a) Latch is level triggred and flip-flop s edge triggred.
b) the time required to attained stable state is setup time.
c) Hold time is the minimum time required at nput to get any change in output