Computer Science: An Overview (12th Edition)
12th Edition
ISBN: 9780133760064
Author: Glenn Brookshear, Dennis Brylow
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 2.4, Problem 3QE
Program Plan Intro
XOR operation:
XOR operation between two statements gives true result if one statement is true and second is false. XOR operation gives the complement form of a bit string if byte has only 1.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Please written by computer source
7. Suppose you want to complement the right 4 bits of a byte and leave the other 4 bits unchanged. What mask must you use together with what operation?
Suppose you want to isolate the middle 4 bits of a byte by placing 0s in the other 4 bits without disturbing the middle 4 bits. What mask must you use together with what operation?
Suppose you want to complement the 4 middle bits of a byte while leaving the other 4 bits undisturbed. What mask must you use together with what operation?
What are the values in Hexadecimal to RESET and to CHECK the LSB? What should be the mask for SET the MSB (most significant bit)?
Suppose that you need to change the buffer structure such that all bits used in flags are now using integers (not char) values. Define the new structure and explain how "SET", "RESET (RST)" and "CHECK (CHK)" operations should be performed in the RLB (Relocation Bit).
please answer this questions and explain it
Chapter 2 Solutions
Computer Science: An Overview (12th Edition)
Ch. 2.1 - What sequence of events do you think would be...Ch. 2.1 - What information must the CPU supply to the main...Ch. 2.1 - Prob. 3QECh. 2.2 - Prob. 1QECh. 2.2 - In the text, JUMP instructions were expressed by...Ch. 2.2 - Is the instruction If 0 equals 0, then jump to...Ch. 2.2 - Write the example program in Figure 2.7 in actual...Ch. 2.2 - The following are instructions written in Vole...Ch. 2.2 - What is the difference between the instructions...Ch. 2.2 - Here are some instructions in English. Translate...
Ch. 2.3 - Prob. 1QECh. 2.3 - Suppose the Vole memory cells at addresses 0xB0 to...Ch. 2.3 - Suppose the Vole memory cells at addresses 0xA4 to...Ch. 2.3 - Suppose the Vole memory cells at addresses 0xF0 to...Ch. 2.4 - Prob. 1QECh. 2.4 - Prob. 2QECh. 2.4 - Prob. 3QECh. 2.4 - a. Suppose you XOR the first 2 bits of a string of...Ch. 2.4 - Prob. 5QECh. 2.4 - Prob. 6QECh. 2.4 - Prob. 7QECh. 2.4 - Prob. 8QECh. 2.4 - Prob. 9QECh. 2.4 - Prob. 10QECh. 2.4 - Using Vole machine language (Appendix C), write a...Ch. 2.4 - Prob. 12QECh. 2.5 - Prob. 1QECh. 2.5 - Prob. 2QECh. 2.5 - Prob. 3QECh. 2.6 - The hypotenuse example script truncates the sides...Ch. 2.6 - Prob. 2QECh. 2.6 - The Python built-in function str () will convert a...Ch. 2.6 - Use the Python built-in bin () to write a script...Ch. 2.6 - Prob. 6QECh. 2.7 - Referring back to Questions 3 of Section 2.3, if...Ch. 2.7 - Prob. 2QECh. 2.7 - Suppose there were two central processing units...Ch. 2 - a. In what way are general-purpose registers and...Ch. 2 - Answer the following questions in Vole machine...Ch. 2 - Prob. 3CRPCh. 2 - What is the value of the program counter in the...Ch. 2 - Prob. 5CRPCh. 2 - Prob. 6CRPCh. 2 - Prob. 7CRPCh. 2 - Suppose a machine language is designed with an...Ch. 2 - Translate the following instructions from English...Ch. 2 - Rewrite the program in Figure 2.7 assuming that...Ch. 2 - 11. Classify each of the following instructions...Ch. 2 - Prob. 12CRPCh. 2 - Prob. 13CRPCh. 2 - Suppose the memory cells at addresses 0x00 through...Ch. 2 - Suppose the memory cells at addresses 0x00 through...Ch. 2 - Suppose the memory cells at addresses 0x00 through...Ch. 2 - Suppose the memory cells at addresses 0x00 through...Ch. 2 - Prob. 18CRPCh. 2 - If the Vole executes an instruction every...Ch. 2 - Prob. 20CRPCh. 2 - Prob. 21CRPCh. 2 - Prob. 22CRPCh. 2 - Prob. 23CRPCh. 2 - Write a program in Vole to compute the sum of...Ch. 2 - Prob. 26CRPCh. 2 - Prob. 27CRPCh. 2 - Suppose the following program, written in Vole, is...Ch. 2 - Summarize the steps involved when the Vole...Ch. 2 - Summarize the steps involved when the Vole...Ch. 2 - Summarize the steps involved when the Vole...Ch. 2 - Suppose the registers 0x4 and 0x5 in the Vole...Ch. 2 - Prob. 33CRPCh. 2 - Prob. 34CRPCh. 2 - Prob. 35CRPCh. 2 - Prob. 36CRPCh. 2 - Prob. 37CRPCh. 2 - Prob. 38CRPCh. 2 - Prob. 39CRPCh. 2 - Prob. 40CRPCh. 2 - Prob. 41CRPCh. 2 - Prob. 42CRPCh. 2 - a. What single instruction in the Vole machine...Ch. 2 - Write a Vole program that reverses the contents of...Ch. 2 - Write a Vole program that subtracts the value...Ch. 2 - Prob. 46CRPCh. 2 - Suppose a person is typing forty words per minute...Ch. 2 - Prob. 48CRPCh. 2 - Suppose the Vole communicates with a printer using...Ch. 2 - Write a Vole program that places 0s in all the...Ch. 2 - Prob. 51CRPCh. 2 - Prob. 52CRPCh. 2 - Suppose you are given 32 processors, each capable...Ch. 2 - Prob. 54CRPCh. 2 - Prob. 55CRPCh. 2 - Describe how the average of a collection of...Ch. 2 - Write and test a Python script that reads in a...Ch. 2 - Write and test a Python script that reads in a...Ch. 2 - Prob. 59CRPCh. 2 - Suppose a computer manufacturer develops a new...Ch. 2 - Prob. 2SICh. 2 - Prob. 3SICh. 2 - Prob. 4SICh. 2 - Suppose a manufacturer produces a computer chip...Ch. 2 - Prob. 6SICh. 2 - Prob. 7SICh. 2 - Prob. 8SI
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
- 6. Consider the following simplified version of the CFB mode. The plaintext is broken into 32-bit pieces: P = [P₁, P2, ,], where each P, has 32 bits, rather than the 8 bits used in CFB. Encryption proceeds as follows. An initial 64-bit X₁ is chosen. Then for j = 1,2,..., the following is performed: CjPjL32 (Ek (Xj)) Xj+1 = R32(X₁)||C₁ where L32(X) denotes the 32 leftmost bits of X, R32 (X) denotes the rightmost 32 bits of X, and XY denotes the string obtained by writing X followed by Y. Find the decryption algorithm.arrow_forwardA null bitmap is used to indicate whether an attribute has a null value in the variable-length record format. Tuples may contain a lot of properties in certain applications, with the majority of them being null. Is it possible to change the record representation such that the null bitmap's single bit is the sole cost for a null attribute?arrow_forwardImplement the 'nx' loop in assembly language which copies the data from the packet into the local buffer, one character at a time. The loop continues until a null-terminating character is found.arrow_forward
- If you want to set last (8-bit) of a binary number and reset the other bits, you could set a mask with 1's and OR it with the original binary number. O Skip O False O Truearrow_forwardTake into consideration the binary BCH code, which is 127 bits long and has a spacing of 6 bits, and use the binary field extension F128, which is 128 bits in size. How big is the code, and can you ensure a certain minimum space between entries?arrow_forwardPlease enter all answers as strings of 0's and 1's. Consider the 64 bit DES block below. 00100000001000010001000000000000000000000000000000000000000000000010000000100001000100000000000000000000000000000000000000000000 Suppose that this is the initial input to DES. What will the block look like after the initial permutation (IP) is applied?If we apply the IP−1−1 transformation to the above, what will the result be?arrow_forward
- Explain the term masking. How is it useful for data representation? Explain the concept using an example For a floating-point format with a k -bit exponent and an n -bit fraction, give a formula for the smallest positive integer that cannot be represented exactly (because it would require an n + 1 –bit fraction to be exact).arrow_forwardTake into consideration the binary BCH code, which is 127 bits long and has a distance of 6 bits intended for it, and use the binary field extension F 128, which is 128 bits in size. How big is the code, and can you guarantee a certain minimum distance between entries?arrow_forwardIn the steps of “Append the padding bits” in SHA-512 system (shown in Figure 1), the message is padded so that its length is congruent to 896 mod 1024 or (length ≅ 896 mod 1024). State the value of the following padding field is the message length is: a) 1919 b) 1920 c) 2942arrow_forward
- Separate the bit sequence into appropriate sized chuncks for each of the following domains. (You do NOT have to decode this bit sequence.) 1. Octal String: 010 110 101 010 101 111 010 111 111 101 011 011 011 011 010 1001. Hex String:1. Base64 String:arrow_forwardRandom Bit Generation & Stream Cipher RC4: We use 4 bytes state and 2 bytes key for stream generation. Using the K = [1, 2], the permutation S = [0, 1, 2, 3]. Show the stream generation and encrypt the message: Hi (H = 0100 1000 and I = 0100 1001). Then decrypt the message again.arrow_forwardIn the variable-length record representation, a null bitmap is used to indicateif an attribute has the null value. In some applications, tuples have a very large number of attributes, most of which are null. Can you modify the record representation such that the only overhead for a null attribute is the single bit in the null bitmap?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Systems ArchitectureComputer ScienceISBN:9781305080195Author:Stephen D. BurdPublisher:Cengage Learning
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning