the operation times for the major functional units in this implementation are the following: Memory units: 200 picoseconds (ps)ALU and adders: 50 psRegister file (read or write): 25 psAssuming that the multiplexors, control unit, PC accesses, sign extension unit, and wires have no delay, which of the following implementations would be faster and by how much?An implementation in which every instruction operates in 1 clock cycle of a fixed length.An implementation where every instruction executes in 1 clock cycle using a variable length clock, which for each instruction is only as long as it needs to be. (Such an approach is not terribly practical, but it will allow us to see what is being sacrificed when all the instructions must execute in a single clock of the same length.)To compare the performance, assume the following instruction mix: 20% loads, 15% stores, 40% ALU instructions, 20% branches, and 5% jumps.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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the operation times for the major functional units in this implementation are the following:

Memory units: 200 picoseconds (ps)
ALU and adders: 50 ps
Register file (read or write): 25 ps

Assuming that the multiplexors, control unit, PC accesses, sign extension unit, and wires have no delay, which of the following implementations would be faster and by how much?

An implementation in which every instruction operates in 1 clock cycle of a fixed length.
An implementation where every instruction executes in 1 clock cycle using a variable length clock, which for each instruction is only as long as it needs to be. (Such an approach is not terribly practical, but it will allow us to see what is being sacrificed when all the instructions must execute in a single clock of the same length.)

To compare the performance, assume the following instruction mix: 20% loads, 15% stores, 40% ALU instructions, 20% branches, and 5% jumps.

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