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 10, Problem 10.7HW
Program Plan Intro
RIO Buffered Input functions:
- The RIO function is used to copy a text file from standard input to standard output one at a time.
- Rio functions are motivated by the three functions
- “readline” function
- “readn” function
- “writen” function
- The “rio_readn” and “rio_writen” functions are similar to the Stevens “readn” and “writen” functions.
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Problem Statement
Assuming that you are part of a project team in a Telecom company, your project is focusing on the
following wireless communications between a base station and a mobile handset. where:
Transmitted Binary
Seq. [11100]
Transmitted Signal
[111-1-1]
Digital
Modulator
Transmitter Site at Base station
(1)
Transmitted Signal
[111-1-1)
Received Signal
[1.8147 1.9058 1.1270 -0.0866 -0.3676]
Noise (random real numbers):
[0.8147 0.9058 0.1270 0.9134 0.6324]
Received signal at Mobile Handset
(2)
Figure 1. A basic Demonstration of Digital Communication System
Assume that the base station is transmitting a set of binary bits x = [1110o] to the mobile handset.
Firstly, at the transmitter, the Telecom engineers will modulate the binary bits using a Digital Modulator.
The purpose of this ('modulation') is to make the sequence easily transmitted and well interfaced to the
channel. The function of a digital modulator is to map the digit 0 to -1; and the digit 1 to 1, as illustrated
in…
Fill in the blanks:
Q. Interrupt __________________ Routine is Better known as _______________.
Write a program that includes two subprograms, one that takes a single parameter and performs some simple operation on that parameter and one that takes 20 parameters and uses all of the parameters, but only for one simple operation. The main program must call these two subprograms a large number of times. Include in the program timing code to output the run time of the calls to each of the two subprograms. Run the program on a RISC machine and on a CISC machine and compare the ratios of the time required by the two subprograms. Based on the results, what can you say about the speed of parameter passing on the two machines?
Chapter 10 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 10.3 - Prob. 10.1PPCh. 10.8 - Practice Problem 10.2 (solution page 915) Suppose...Ch. 10.8 - Practice Problem 10.3 (solution page 915) As...Ch. 10.9 - Prob. 10.4PPCh. 10.9 - Practice Problem 10.5 (solution page 916) Assuming...Ch. 10 - Prob. 10.6HWCh. 10 - Prob. 10.7HWCh. 10 - Write a version of the statcheck program in Figure...Ch. 10 - Consider the following invocation of the...Ch. 10 - Prob. 10.10HW
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