Computer Systems: Program... -Access
3rd Edition
ISBN: 9780134071923
Author: Bryant
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 2, Problem 2.69HW
Write code for a function with the following prototype:
/*
* Do rotating left shift. Assume 0 <= n < w
* Examples when x = 0x12345678 and w = 32:
* n=4-> 0x23456781, n=20 -> 0x67812345
*/
unsigned rotate_left(unsigned x, int n);
Your function should follow the bit-level integer coding rules (page 128). Be careful of the case n = 0.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Write a C-function with two arguments (n and r) that has prototype:
char clearbit(char k, char bits)
The function clears (sets to 0) the bit number k (in the range of 0 to 7) in bits and returns the resulting value. For example, if k is 0x02 and bits is 0x07, the function would return bits with its k’th bit cleared, resulting in 0x03. It must not change other bits in bits.
Hint: You may use any number of C-statements, but this task can be accomplished in as few as one!
Write a function that makes the base conversion. It takes two integers n and b as input (n >= 0 andb > 1, both in base 10) and expresses n in base b. For example, the decimal expansion of 345 inbase 10 is 345 = 3 × 102 + 4 × 101 + 5 × 100.Sample input: n = 12, b =2. Sample output: 1100Explanation: (12)10 = (1100)2
Implement the function (in C or C++) with the following prototype:
/** Implement a function which rotates a word left by n-bits, and returns that rotated value. Assume 0 <= n < w Examples: when x = 0x12345678 and w = 32: n=4 -> 0x23456781 n=20 -> 0x67812345 */ unsigned rotate_left(unsigned x, int n);
The function should follow the bit-level integer coding rules above. Be careful of the case n = 0.
Chapter 2 Solutions
Computer Systems: Program... -Access
Ch. 2.1 - Practice Problem 2.1 (solution page 143) Perform...Ch. 2.1 - Prob. 2.2PPCh. 2.1 - Prob. 2.3PPCh. 2.1 - Practice Problem 2.4 (solution page 144) Without...Ch. 2.1 - Prob. 2.5PPCh. 2.1 - Prob. 2.6PPCh. 2.1 - Prob. 2.7PPCh. 2.1 - Prob. 2.8PPCh. 2.1 - Practice Problem 2.9 solution page 146 Computers...Ch. 2.1 - Prob. 2.10PP
Ch. 2.1 - Prob. 2.11PPCh. 2.1 - Prob. 2.12PPCh. 2.1 - Prob. 2.13PPCh. 2.1 - Prob. 2.14PPCh. 2.1 - Prob. 2.15PPCh. 2.1 - Prob. 2.16PPCh. 2.2 - Prob. 2.17PPCh. 2.2 - Practice Problem 2.18 (solution page 149) In...Ch. 2.2 - Prob. 2.19PPCh. 2.2 - Prob. 2.20PPCh. 2.2 - Prob. 2.21PPCh. 2.2 - Prob. 2.22PPCh. 2.2 - Prob. 2.23PPCh. 2.2 - Prob. 2.24PPCh. 2.2 - Prob. 2.25PPCh. 2.2 - Practice Problem 2.26 (solution page 151) You are...Ch. 2.3 - Prob. 2.27PPCh. 2.3 - Prob. 2.28PPCh. 2.3 - Prob. 2.29PPCh. 2.3 - Practice Problem 2.30 (solution page 153) Write a...Ch. 2.3 - Prob. 2.31PPCh. 2.3 - Practice Problem 2.32 (solution page 153) You are...Ch. 2.3 - Prob. 2.33PPCh. 2.3 - Prob. 2.34PPCh. 2.3 - Practice Problem 2.35 (solution page 154) You are...Ch. 2.3 - Prob. 2.36PPCh. 2.3 - Practice Problem 2.37 solution page 155 You are...Ch. 2.3 - Prob. 2.38PPCh. 2.3 - Prob. 2.39PPCh. 2.3 - Practice Problem 2.40 (solution page 156) For each...Ch. 2.3 - Prob. 2.41PPCh. 2.3 - Practice Problem 2.42 (solution page 156) Write a...Ch. 2.3 - Practice Problem 2.43 (solution page 157) In the...Ch. 2.3 - Prob. 2.44PPCh. 2.4 - Prob. 2.45PPCh. 2.4 - Prob. 2.46PPCh. 2.4 - Prob. 2.47PPCh. 2.4 - Prob. 2.48PPCh. 2.4 - Prob. 2.49PPCh. 2.4 - Prob. 2.50PPCh. 2.4 - Prob. 2.51PPCh. 2.4 - Prob. 2.52PPCh. 2.4 - Practice Problem 2.53 (solution page 160) Fill in...Ch. 2.4 - Practice Problem 2.54 (solution page 160) Assume...Ch. 2 - Compile and run the sample code that uses...Ch. 2 - Try running the code for show_bytes for different...Ch. 2 - Prob. 2.57HWCh. 2 - Write a procedure is_little_endian that will...Ch. 2 - Prob. 2.59HWCh. 2 - Prob. 2.60HWCh. 2 - Prob. 2.61HWCh. 2 - Write a function int_shifts_are_arithmetic() that...Ch. 2 - Fill in code for the following C functions....Ch. 2 - Write code to implement the following function: /...Ch. 2 - Write code to implement the following function: /...Ch. 2 - Write code to implement the following function: / ...Ch. 2 - You are given the task of writing a procedure...Ch. 2 - Prob. 2.68HWCh. 2 - Write code for a function with the following...Ch. 2 - Write code for the function with the following...Ch. 2 - You just started working for a company that is...Ch. 2 - You are given the task of writing a function that...Ch. 2 - Write code for a function with the following...Ch. 2 - Write a function with the following prototype: /...Ch. 2 - Prob. 2.75HWCh. 2 - The library function calloc has the following...Ch. 2 - Prob. 2.77HWCh. 2 - Write code for a function with the following...Ch. 2 - Prob. 2.79HWCh. 2 - Write code for a function threefourths that, for...Ch. 2 - Prob. 2.81HWCh. 2 - Prob. 2.82HWCh. 2 - Prob. 2.83HWCh. 2 - Prob. 2.84HWCh. 2 - Prob. 2.85HWCh. 2 - Intel-compatible processors also support an...Ch. 2 - Prob. 2.87HWCh. 2 - Prob. 2.88HWCh. 2 - We are running programs on a machine where values...Ch. 2 - You have been assigned the task of writing a C...Ch. 2 - Prob. 2.91HWCh. 2 - Prob. 2.92HWCh. 2 - following the bit-level floating-point coding...Ch. 2 - Following the bit-level floating-point coding...Ch. 2 - Following the bit-level floating-point coding...Ch. 2 - Following the bit-level floating-point coding...Ch. 2 - Prob. 2.97HW
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Pet World offers a 15 percent discount to senior citizens. Write a pseudocode algorithm for a program that inpu...
Starting Out with C++: Early Objects
Alphabetic Telephone Number Translator Many companies use telephone numbers like 555-GET-FOOD so the number is ...
Starting Out with Python (3rd Edition)
To determine the number of elements in a vector, use the ____________ member function.
Starting Out with C++ from Control Structures to Objects (9th Edition)
The startsWith, endsWith, and regionMatches methods are members of this class. a. String b. Char c. Character d...
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Write an IfThen statement that sets the variable intFees to 50 when the Boolean variable blnIsMax equals True.
Starting Out With Visual Basic (7th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Write a function int bitset(int x, int n) to set nth bit of x to 1, if its (n-1)th bit is 1. if n <1 or n >15, the function will return -1 to thecalling functionarrow_forwardNumbers can be regarded as product of its factors. For example,8 = 2 x 2 x 2; = 2 x 4.Write a function that takes an integer nand return all possible combinations of its factors.Note:You may assume that n is always positive.Factors should be greater than 1 and less than n.Examples:input: 1output:[]input: 37output:[]input: 12output:[ [2, 6], [2, 2, 3], [3, 4]]input: 32output:[ [2, 16], [2, 2, 8], [2, 2, 2, 4], [2, 2, 2, 2, 2], [2, 4, 4], [4, 8]].arrow_forwardimplement anyEvenBit(x) Return 1 if any even bit in x is set to 1 you are only allowed to use the following eight operators: ! ~ & ^ | + << >> “Max ops” field gives the maximum number of operators you are allowed to use to implement each function /* * anyEvenBit - return 1 if any even-numbered bit in word set to 1* Examples anyEvenBit(0xA) = 0, anyEvenBit(0xE) = 1* Legal ops: ! ~ & ^ | + << >>* Max ops: 12*/int anyEvenBit(int x) {return 2;}arrow_forward
- Numbers can be regarded as product of its factors. For example,8 = 2 x 2 x 2; = 2 x 4.Write a function that takes an integer n and return all possible combinationsof its factors.Numbers can be regarded as product of its factors. For example,8 = 2 x 2 x 2; = 2 x 4.Examples:input: 1output:[]input: 37output:[]input: 32output:[ [2, 16], [2, 2, 8], [2, 2, 2, 4], [2, 2, 2, 2, 2],""".arrow_forwardI want to write C or C++ functions that evaluate to ONE when the given conditions are true, and to ZERO when they are false. The following are the fourt conditions: int a(int x); //Any bit of x equals 0. int b(int x); // Any bit of x equals 1. int c(int x); //Any bit in the LSB of x equals 0. int d(int x); //Any bit in the MSB of x equals 1. The code should follow the bit-level integer coding rules, with the additional restriction that you may not use equality (==) or inequality (!=) tests.arrow_forwardSuppose we number the bytes in a w-bit word from 0 (least significant) to w/8 – 1 (most significant). Write code for the following C function, which will return an unsigned value in which byte i of argument x has been replaced by byte b: unsigned replace_byte (unsigned x, int i, unsigned char b); Here are some examples showing how the function should work: replace_byte(0x12345678, 2, 0xAB) --> 0x12AB5678 replace_byte(0x12345678, 0, 0xAB) --> 0x123456AB Bit-Level Integer Coding Rules In several of the following problems, we will artificially restrict what programming constructs you can use to help you gain a better understanding of the bit-level, logic, and arithmetic operations of C. In answering these problems, your code must follow these rules: Allowed operations All bit-level and logic operations. Left and right shifts, but only with shift amounts between 0 and w – 1. Addition and subtraction. Equality (==) and inequality (!=) tests. (Some of the problems do not allow…arrow_forward
- // Task 3 // For this function, you must return the largest power of 2 that // is less than or equal to x (which will be positive). You may // not use multiplication or some sort of power function to do this, // and should instead rely on bitwise operations and the underlying // binary representation of x. If x is 0, then you should return 0. unsigned largest_po2_le(unsigned x) { return x; }arrow_forwardIn C, write a function int setbit(int n, int i) to set the i^ᵗʰ bit of n if i^ᵗʰ bit is 0.arrow_forwardWrite a function setbits(x,p,n,y) that returns x with the n bits that begin at position p set to the rightmost n bits of y, leaving the other bits unchanged.arrow_forward
- Write C code that contains a function called triangle_generator that outputs a triangle wave at a specified frequency (in hertz) using a specified sample rate (in hertz), and for a specified time duration (in seconds). These parameters are float type. The output you generate are floating point numbers between -1 and 1, one number per output line. The math trig functions in C use radians while all the specifications here are in hertz (cycles per second). One hertz is 2*Pi radians.arrow_forwardWrite a c++ program function that makes the base conversion. It takes two integers n and b as input (n >= 0 and b > 1, both in base 10) and expresses n in base b. For example, the decimal expansion of 345 in base 10 is 345=3×102 +4×101 +5×100.Sample input: n = 12, b = 2. Sample output: 1100 Explanation: (12)10 = (1100)2arrow_forwardinside the cpu, mathematical oprations like addition subtraction ,multipulcation and division are done in bit-livel. To perform bit-livel opration in c programming ,bitwise operators are used. apply the knowledge you gained while learing bit wise operators. write a program to input two integers from user by using single scanf.computer and display the value for a and b, a|b,a theta b.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
C++ for Engineers and Scientists
Computer Science
ISBN:9781133187844
Author:Bronson, Gary J.
Publisher:Course Technology Ptr
C++ Programming: From Problem Analysis to Program...
Computer Science
ISBN:9781337102087
Author:D. S. Malik
Publisher:Cengage Learning
CPP Function Parameters | Returning Values from Functions | C++ Video Tutorial; Author: LearningLad;https://www.youtube.com/watch?v=WqukJuBnLQU;License: Standard YouTube License, CC-BY