Computer Organization and Architecture (CS 2619) - Conditional Jump
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Questions and Answers

What is the purpose of the machine problem stated in the exercise?

  • To convert a lowercase letter to uppercase and vice versa (correct)
  • To convert a number to its ASCII equivalent
  • To display the ASCII table
  • To ask the user to enter a number

    • What is the total score of the bonus exercise?

  • 30 points (correct)
  • 20 points
  • 35 points
  • 25 points

    • What is the deadline for the submission of the bonus exercise?

  • Right before the start of Quiz 5
  • Right before the start of Quiz 3
  • Right before the start of Quiz 4 (correct)
  • Right before the start of Quiz 6

    • What is required in the front page of the answer sheet?

    <p>Source code and sample runs</p> Signup and view all the answers

    What is required to be handwritten in the answer sheet?

    <p>The algorithm/pseudocode</p> Signup and view all the answers

    What is the consequence of submitting identical/similar answers or answers copied from other sources?

    <p>Score = 0</p> Signup and view all the answers

    What is the purpose of the 'cmp al,'A'' instruction?

    <p>To check if the entered character is an uppercase letter</p> Signup and view all the answers

    What is the function of the 'int 21h' instruction?

    <p>To terminate the program</p> Signup and view all the answers

    What is the purpose of the 'lea dx,upper' instruction?

    <p>To load the address of the 'upper' string into the DX register</p> Signup and view all the answers

    What is the function of the 'call show' instruction?

    <p>To display a message on the screen</p> Signup and view all the answers

    What is the condition for the 'jb low' instruction to be executed?

    <p>If the entered character is less than 'A'</p> Signup and view all the answers

    What is the purpose of the 'mov ax,@data' instruction?

    <p>To initialize the data segment</p> Signup and view all the answers

    What is the function of the 'ret' instruction?

    <p>To return control to the calling procedure</p> Signup and view all the answers

    What is the purpose of the 'mov dx,offset prompt' instruction?

    <p>To load the address of the 'prompt' string into the DX register</p> Signup and view all the answers

    Study Notes

    Instructions for Bonus Exercise

    • The exercise is on Conditional Jump/INT 21H.
    • Use a single long size bond paper (8.5” x 13”) for the answer sheet.
    • Only use blue/black ball pen for handwritten solutions.
    • Use liquid eraser/correction tape for erasures.
    • Present solutions clearly and neatly to avoid penalties.
    • No identical or similar answers or answers copied from other sources will be accepted.

    Machine Problem Requirements

    • Write an 8088-assembly language program that asks the user to enter a letter.
    • If the entered letter is in lowercase, the program will convert it to uppercase (vice versa) and display the converted letter.
    • The program will also display the next 5 characters of the given letter (based on the ASCII table).
    • The program must execute again if the user wants to continue.

    Submission Requirements

    • Submit an algorithm/pseudocode (handwritten).
    • Include source code with comments (computerized, compressed).
    • Provide screenshots of sample runs.

    Answer Sheet Format

    • Use a single long size bond paper (8.5” x 13”) in portrait orientation.
    • Front page contains the source code and sample run.
    • Back page contains the algorithm.

    Sample Code

    • The sample code determines if the entered character is a letter, digit, or special character.
    • It uses conditional jump instructions.

    Source Code Explanation

    • The source code uses model small and a stack size of 100h.
    • It defines data for prompts, uppercase, lowercase, digit, and special character messages.
    • The code section starts with initializing the data segment and displaying a prompt to enter a character.
    • It then requests input, checks the character type, and displays the corresponding message.

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    Related Documents

    MACHINE-EXERCISEINT21_CONDTIONAL-JUMP_2nd_2023_2024.pdf

    Description

    A bonus exercise on conditional jump and INT 21H in computer organization and architecture, covering concepts and solutions for CS 2619 students.

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