Computer Science: An Overview (12th Edition)
12th Edition
ISBN: 9780133760064
Author: Glenn Brookshear, Dennis Brylow
Publisher: PEARSON
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Textbook Question
Chapter 2.2, Problem 2QE
In the text, JUMP instructions were expressed by identifying the destination explicitly by stating the name (or step number) of the destination within the JUMP instruction (for example, “Jump to Step 6”). A drawback of this technique is that if an instruction name (number) is later changed, we must be sure to find all jumps to that instruction and change that name also. Describe another way of expressing a JUMP instruction so that the name of the destination is not explicitly stated.
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Students have asked these similar questions
Based on the diagram below, what is the carry flag result "CF" after executing the mnemonic opcode/operand instructions?
MOV AX, 200h
MOV BX, 100h
MUL BX
AX
200h
BX
100h
a. The resulted carry flag CF is 11.
O b. The resulted carry flag CF is 12.
c. The resulted carry flag CF is 1.
d. The resulted carry flag CF is 0.
DX
AX
CF OF
In this implementation, each instruction is provided with its own data independently of how other instructions acquire theirs. We insert a(n): A Multiple Input/Output B The Case of Many Pieces of Information or Directions C Unique Information Only One D Several Insts From One
Our second task is to check the sign bit of a number. There are many ways to do this, but I
want the least expensive method in terms of the number of instructions. This generally
means avoiding the use of instructions that has immediate operands.
To get to the instruction that we need to use, we first need to examine the ALU itself.
Which flag (the corresponding ALU tunnel name in parentheses) in the ALU reflects the
sign bit of the result of a computation regardless of the computation, with the exception
of the instructions dec and inc?
S (Sout)
only add and subtract instructions affect S (Sout)
O (Oout)
C (Cout)
B (Bout)
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
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