3) Draw a block diagram of an optimum size Arithmetic pipeline for floating point addition. Define the suboperations of the pipeline and explain the operations in detail by giving an example. a) How would you use the floating-point pipeline adder in the above pipeline to add n floating point numbers? Draw a block diagram for this case. b) The time delays of the 4 segments pipeline are t1=60ns, t2= 40ns, tz= 115ns, t4 =55ns . The interface registers delay time is tr= 7 ns. How long will it take to add 50 pairs of numbers in the pipeline? c) How can we reduce the total time approximately to half of the time calculated in (b)