Computer Systems: A Programmer's Perspective (3rd Edition)
Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
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Chapter 6.1, Problem 6.1PP
Program Plan Intro

DRAM Array:

An array that is used to store a type of random access semiconductor memory that stores each bit of data in a separate tiny capacitor within an integrated circuit is known as DRAM or Dynamic random access memory Array.

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Problem 1(d) The floating point numbers include many integers, but not all of them. What is the smallest postive integer n that is not exactly represented as a Float64 ? Hint: First consider p = 1, 2, ..., and try to see the pattern.
(c) A palindromic number is a number that is the same if read forwards or backwards: 12321 and 641146 are examples. It is possible to represent a number using an array of digits (numbers 0- 9), for example: [1,9,5, 2] could represent 1952. i. Using an appropriate iteration construct, write an algorithm as a procedure that decides if an input array A[1..n] of digits is a palindromic number.
Chapter 3: Practice Problems VIII. You are given the following C code to compute integer absolute value: int abs(int x) { } return x > (sizeof(int)*8-1); int comp = x mask; return comp; } A. What bit pattern does mask have, as a function of x? B. What numerical value does mask have, as a function of x? C. For what values of x do functions abs and opt abs return identical results? D. For the cases where they produce different results, how are the two results related? E. Show that with the addition of just one single arithmetic operation (any C operation is allowed) that you can fix opt abs. Show your modifications on the original code. (You can just provide the line that you will add). F. Are there any values of x such that abs returns a value that is not greater than 0? Which value(s)?
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