Introduction to Programming with C++
Introduction to Programming with C++
3rd Edition
ISBN: 9780133252811
Author: Y. Daniel Liang
Publisher: Prentice Hall
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Chapter 1, Problem 9PE

(Area and perimeter of a rectangle) Write a program that displays the area and perimeter of a rectangle with the width of 4.5 and height of 7.9 using the following formula:

a r e a = w i d t h × h e i g h t

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Q.1. Architecture performance [10 marks] Answer A certain microprocessor requires either 2, 4, or 6 machine cycles to perform various operations. ⚫ (40+g+f)% require 2 machine cycles, ⚫ (30-g) % require 4 machine cycles, and ⚫ (30-f)% require 6 machine cycles. (a) What is the average number of machine cycles per instruction for this microprocessor? Answer (b) What is the clock rate (machine cycles per second) required for this microprocessor to be a "1000 MIPS" processor? Answer (c) Suppose that 35% of the instructions require retrieving an operand from memory which needs an extra 8 machine cycles. What is the average number of machine cycles per instruction, including the instructions that fetch operands from memory?
Q.2. Architecture performance [25 marks] Consider two different implementations, M1 and M2, of the same instruction set. M1 has a clock rate of 2 GHz and M2 has a clock rate of 3.3 GHz. There are two classes of instructions with the following CPIs: Class A CPI for M1 CPI for M2 2.f 1.g B 5 3 C 6 4 Note that the dots in 2 fand 1.g indicate decimal points and not multiplication. a) What are the peak MIPS performances for both machines? b) Which implementation is faster, if half the instructions executed in a certain program are from class A, while the rest are divided equally among classes B and C. c) What speedup factor for the execution of class-A instructions would lead to 20% overall speedup? d) What is the maximum possible speedup that can be achieved by only improving the execution of class-A instructions? Explain why. e) What is the clock rate required for microprocessor M1 to be a "1000 MIPS" (not peak MIPS) processor?

Chapter 1 Solutions

Introduction to Programming with C++

Ch. 1 - What is an assembly language? Ch. 1 - What is an assembler?Ch. 1 - What is a high-level programming language?Ch. 1 - What is a source program? Ch. 1 - What is an interpreter? Ch. 1 - What is a compiler? Ch. 1 - Prob. 17CPCh. 1 - Prob. 18CPCh. 1 - Prob. 19CPCh. 1 - Prob. 20CPCh. 1 - Prob. 21CPCh. 1 - Prob. 22CPCh. 1 - Explain the C++ keywords. List some C++ keywords...Ch. 1 - Is C++ case sensitive? What is the case for C++...Ch. 1 - What is the source file name extension, and what...Ch. 1 - What is a comment? What is the syntax for a...Ch. 1 - Prob. 27CPCh. 1 - What does the namespace std stand for? Ch. 1 - Which of the following preprocessor directive is...Ch. 1 - Prob. 30CPCh. 1 - Show the output of the following code: Ch. 1 - Show the output of the following code:...Ch. 1 - Prob. 33CPCh. 1 - Prob. 34CPCh. 1 - Identify and fix the errors in the following...Ch. 1 - Prob. 36CPCh. 1 - Reformat the following program according to the...Ch. 1 - Prob. 38CPCh. 1 - Prob. 39CPCh. 1 - If your program needs to read data from a file,...Ch. 1 - Suppose you write a program for computing the...Ch. 1 - Identify and fix the errors in the following...Ch. 1 - (Display three messages) Write a program that...Ch. 1 - (Display five messages) Write a program that...Ch. 1 - (Display a pattern) Write a program that displays...Ch. 1 - (Print a table) Write a program that displays the...Ch. 1 - (Compute expressions) Write a program that...Ch. 1 - (Summation of a series) Write a program that...Ch. 1 - (Approximate ) can be computed using the...Ch. 1 - (Area and perimeter of a circle) Write a program...Ch. 1 - (Area and perimeter of a rectangle) Write a...Ch. 1 - (Average speed in miles) Assume a runner runs 14...Ch. 1 - (Population projection) The U.S. Census Bureau...Ch. 1 - (Average speed in kilometers) Assume a runner runs...
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