Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Lc3 traps

18/12/2020 Client: saad24vbs Deadline: 24 Hours

Lab #4: TRAPs and Subroutines – Memory Dump Computer Organization


PURPOSE In this lab, students will gain familiarity with the use of low-level subroutines, caller/callee register saving policy, and TRAP calls. ASSIGNMENT Using the LC-3 simulator, you will construct an assembly-level program that prompts the user for a starting address (in hex) and an ending address (in hex). Your program will then output the contents of memory (in hex) between the provided ranges (inclusive). Enter starting memory address: x3000 Enter ending memory address: x3001 Memory contents x3000 to x3001: x3000 xF030 x3001 xF025


Example execution of the Memory Dump routine: I/O for this routine requires that we develop a routine to enable the input of a 4-digit hex value and a routine for displaying the contents of a 16-bit registers/memory location as a 4-digit hex value. We will implement each of these routines as TRAPs.


• Input (Trap x40): A Trap routine (invoked as TRAP x40) that reads a 4-digit hex from the keyboard and returns the value in R0. This trap may call other traps. You will develop this trap routine and locate it in memory at address x4000.


• Output (Trap x41): A Trap routine (invoked as TRAP x41) that displays the contents of R0 to the display as a 4-digit hex value. This routine should output exactly 5 characters: a leading “x” and the 4 hex digits. Do not display a carriage return/line feed/end-of-line as part of the trap call. This trap may also call other traps. You will develop this trap routine and locate it in memory at address x5000.


Develop these TRAP routines and the use them to implement a program to perform memory dumps (using the i/o format provided in the example above). Note: The representation for output characters (ASCII) is different than the standard binary representation of the value. For example, you may find it useful to note that the ASCII representation for any single-digit value is #48 greater than the number itself. Thus, the ASCII representation of the character 0 has value #48 (x30) while the ASCII representation of the character 1 has value #49 (x31).


PROGRAM GRADING Grades will be assigned out of 50 points as follows: Input Routine (Trap x40): • 10 points: 4-hex digit input: Your project must include an input routine that reads a 4-hex


digit input. It must properly translate the ASCII inputs into a 16-bit value returned in R0. • 5 points: Error checking: Your input routine should verify that the input consist of exactly


4 hexadecimal characters. It should accept uppercase ASCII characters for the hex digits A- F. If an error is detected, the routine must return the value x0000. (You can earn 2 extra- credit points for correctly accepting either upper or lower case A-F digits.)


• 5 points: TRAP implementation: Your input routine should be implemented as a TRAP. Please locate this routine starting at address x4000 in memory. Please execute this routine as TRAP x40. The TRAP routine should not have any unexpected side-effects!


Output Routine (Trap x41): • 10 points: 4-hex digit output: Your project must include an output routine that properly


displays for the user as a 4-hex digit value the contents of R0. The 4-digit value should have an ‘x’ preceding it to indicate that it is a hex value.


• 5 points: TRAP implementation: Your output routine should be implemented as a TRAP. Please locate this routine starting at address x5000 in memory. Please execute this routine as TRAP x41. The TRAP routine should not have any unexpected side-effects.


Memory Dump (main) Routine: • 5 points: Address input: The main routine must prompt the user to input a starting and


ending memory address. It should verify that the starting address is lower than the ending address, and prompt the user to reenter the values if this is not the case, or if either input value is not a proper 4-digit hex value.


• 5 points: Address output loop: Your project must be able to properly output (to the console, in ASCII) the contents in the range of the specified start/end addresses. (See example under assignment description).


Overall: • 5 points: Documentation: Your code should be well documented and easy to follow. You


do NOT have to comment every line of code, but you should have high-level comments for each 3-10 lines that represent a functional block of code. All major functional blocks should be commented. Symbols should be meaningful. Sample execution must demonstrate the functionality of your project.


DELIVERABLES • You will need to implement and turn in four assembly language (.asm) files including: (1)


main.asm: the “main” program which performs the overall memory dump functionality, (2) input.asm: the trap service routine for the input routine, (3) output.asm: the trap service routine for the output routine, (4) tvp.asm: contents for the trap vector table necessary to enable your routine. I will load assemble and load all four files before testing your routine. No credit will be awarded for files that do not assemble.


Applied Sciences

Architecture and Design

Biology

Business & Finance

Chemistry

Computer Science

Geography

Geology

Education

Engineering

English

Environmental science

Spanish

Government

History

Human Resource Management

Information Systems

Law

Literature

Mathematics

Nursing

Physics

Political Science

Psychology

Reading

Science

Social Science

Home

Blog

Archive

Contact

google+twitterfacebook

Copyright © 2019 HomeworkMarket.com

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Homework Guru
University Coursework Help
Helping Hand
Top Essay Tutor
Writer Writer Name Offer Chat
Homework Guru

ONLINE

Homework Guru

Hi dear, I am ready to do your homework in a reasonable price and in a timely manner.

$82 Chat With Writer
University Coursework Help

ONLINE

University Coursework Help

Hi dear, I am ready to do your homework in a reasonable price.

$82 Chat With Writer
Helping Hand

ONLINE

Helping Hand

I am an Academic writer with 10 years of experience. As an Academic writer, my aim is to generate unique content without Plagiarism as per the client’s requirements.

$80 Chat With Writer
Top Essay Tutor

ONLINE

Top Essay Tutor

I have more than 12 years of experience in managing online classes, exams, and quizzes on different websites like; Connect, McGraw-Hill, and Blackboard. I always provide a guarantee to my clients for their grades.

$85 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Siemens clinitek status plus service manual - Lasting impressions company case study - The difference between good and bad decisions - Iki indicator - Penetration test proposal deliverable 1 rules of engagement - Discussion: Treating Childhood Abuse (week 4) - Double staggered piquet list - How to win capsim simulation - Pros and cons of jit - International economics theory and policy 9th edition solution manual pdf - Aaa configuration cisco asa - Www greenwichcollege edu au goals - Buddhist fate crossword clue - Doha west power station kuwait - Evaporative cooler dropper size - Capability maturity model integration cmmi - Citric acid and kidney stones - Homework - Interlux brushing liquid 333 substitute - Dantes inferno worldly splendors - Neural - Stocks - How to calculate cost minimizing input mix - Tooth supported overdenture ppt - Project 4 - Not enough customers cities skylines - Aqa gcse english literature controlled assessment - What were the four main causes of the great depression - Rowlands castle st johns cec primary school - Year 11 ipt notes - Rock mechanics questions and answers - Dr and mrs vandertramp - The espresso lane to global markets case study solution - Managing Health Care Quality - Components of symbolic culture - Chcleg001 work legally and ethically - How many masters possible in hbase - Langston hughes hidden influence on mlk quizlet - Glendale east public school - Should gadgets be allowed in schools - Cos me is black stallion - Define the term cliché penn foster - How to read station models - Manual of environmental management - Rogers cinema houghton movie times - Find the slope of the tangent line to the ellipse - Business Communication - Sample soap note for wellness visit - Mcqs of marketing management by philip kotler 13th edition - Cinderella man characters description - I need a case study on how The nurse sensed that something significant to Ann and Ben was unfolding. - Creative spark ted channel - Insurance and Exculpatory Contracts - Difference between hydraulic and non hydraulic cement - Make a power point -accounting case - Leadership and nursing care management diane huber pdf - Monthly retirement planning worksheet answers - Advantages and disadvantages of transactional model of communication - Sweet leaf bath co marketing report - Advanced diploma of interpreting online - Which organizational forms give their owners limited liability - Information and Digital Literacy - Assignment: Ethics: Do No Harm - Staples double sided printing - Ofd full form in courier - 2 responses Aug 21 - Discussion question - Tri component model of attitudes example - Geico commercial old lady unfriend - Alfie kohn beyond discipline - Matt and kim lessons learned video uncensored - Law and economics 6th edition pdf - Electronic configuration of scandium - Chick fil a strategic plan - Amazon push pull strategy - Uow subject database 2021 - A high strength bolt is identified by - Sociology#6 - Which of the following best describes product analysis - Mgts1601 team evaluation report - Las pirámides de teotihuacán están lejos del valle de - 2h2 o2 2h2o in words - Reply - Community living and respite - Soap Note CC: “I need to start on birth control, I just don’t know which one to go on as there are so many to choose from.” - Question - Dietary fats and blood cholesterol levels worksheet answers pearson - Essay - Bosch obd 2220 vehicle compatibility - Leslie marmon silko lullaby pdf - Us 4c shoe size age - Puls power supply sl20 - Potential evapotranspiration potet refers to - La camarera te sirvió el plato de pasta con mariscos - Bsbrsk501 risk management plan - A7 Blood pressure in children - Mcdonald's supply and demand analysis - Ann Harris - Assembles amino acids to create proteins - Black madonna secret life of bees