Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Computer Engineering Expert

problem 1: Suppose there are 64 different op codes and 19-bit instruction word in a computer system. Two bits in the instruction are reserved to point out the addressing mode.

a) Draw a box style sketch of a CPU showing and labeling Special Purpose Registers:

PC, IR, MAR and MDR and General Purpose Registers: Accumulator, R0-R3.

b) How many different memory locations can this system access by using direct and absolute addressing mode?

c) How many different memory locations can this CPU access by using base or offset addressing mode, if a 14-bit general purpose register serves as the base and can be loaded with any value?

problem 2: Consider an 8-bit system with 32-memory locations (numbered from 0 to 31) and 8 different instructions. Suppose that op code for "Load Accumulator" instruction is 510 and for "Add" instruction is 210. At this moment, the program counter register PC includes the value 00100 and is about to increment, memory locations contain the given values:

Address Contents:

01101   00110110
01100   01110100
01011   10111000
:
00110   01001100
00101   10101011
00100   01111000

Perform two fetch-execute cycles, present each step of the cycles and the contents of each special-purpose register at the starting and at the end of each step of the cycles in binary.

If you believe there is no information on the contents of a particular register, point out it as [unknown] (ex: MDR [unknown]). If overflow takes place, the MSB is stored in a single-bit flag register and not counted in Accumulator. Express the final contents of Accumulator in both binary and decimal. For your answer, use the given table (two first lines are given as sample):

1234_accumulator table.jpg

problem 3: Draw a memory map for a system with a memory capacity of 512MB. Each memory location in the system is 8 bits. Suppose that the system consists of one 4MB memory block used as ROM residing at the bottom of the memory followed by one 16MB module and one 8MB module of RAM. The rest is conventional memory, except for 1MB block at the top used as cache memory. Point out the position of each memory module in your memory map. In hexadecimals, label the starting byte address and ending byte address of each memory block (including empty space). And also, label the size of each memory block in MB.

problem 4: An interrupt is produced by a laser printer as a means of allocating the CPU time. Describe the sequence of events in this computer system by using polled type of interrupt handling.

problem 5: A multiplattered HDD is divided into 40 sectors and four hundred cylinders. There are four platter surfaces. The total capacity of the disc is 256MB. A cluster comprises of four blocks. The disc is rotating at a rate of 3600 rpm. The disc has an average seek time of 24 msec.

a) Determine the capacity of a cluster for this disc?
b) Determine the disc transfer rate in bytes per second?
c) Determine the average latency time and the average access time for this disc?

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M95881

Have any Question? 


Related Questions in Computer Engineering

1 in a connection the value of cwnd is 3000 and the value

1. In a connection, the value of cwnd is 3000 and the value of rwnd is 5000. The host has sent 2000 bytes, which have not been acknowledged. How many more bytes can be sent? 2. A client uses TCP to send data to a server. ...

Discussion questionpersonal factors such as anger revenge

Discussion Question Personal factors, such as anger, revenge, and lack of rewards and recognition, may increase the risk of someone stealing from or spying against employees. Organizations should apply adequate security ...

300 words each point pleaseexplain the origins of the us

300 words each point please. Explain the origins of the U.S. judicial system and how the judicial system impacts and affects businesses. Discuss the concept of judicial review. Describe the different forms of Alternative ...

Design values and adjustment factors in the following

Design values and adjustment factors in the following problems are to be taken from the 1997 NDS. Assume wood will be used in dry-service conditions and at normal temperatures unless otherwise noted. a. Describe softwood ...

1 what are the pros and cons of out-of-band network

1. What are the pros and cons of out-of-band network management versus in-band network management? 2. A network management system can communicate with a managed device using a request-response protocol or a trap mechanis ...

The prolog interpreter as described in this chapter

The PROLOG interpreter, as described in this chapter, performs a prescribed resolution at each step. If all of the statements in a PROLOG program were con-verted to disjunction of literals, describe a control strategy fo ...

After being fired an employee becomes disgruntled the

After being fired, an employee becomes disgruntled. The managers never disabled his login information, and his best friend still works at the company. The disgruntled employee gives his friend his login information for t ...

Emergence and abm agent-based models often exhibit emergent

Emergence and ABM Agent-based models often exhibit emergent properties. One characteristic of an emergent phenomenon is that the system exhibits a property that is not defined at the individual level. For instance, exami ...

The internet is made up of a large number of networks their

The Internet is made up of a large number of networks. Their arrangement determines the topology of the Internet. A considerable amount of information about the Internet topology is available on line. Use a search engine ...

1 what is a policy how is it different from a law2 what are

1. What is a policy? How is it different from a law? 2. What are the three general categories of unethical and illegal behavior? 3. What is the best method for preventing an illegal or unethical activity?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro