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src/app/past-questions-archive/wdu/compsci/2022_2023/200-level/2nd-semester/csc202/page.jsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,322 @@ | ||
| import Questions from "@/components/Questions"; | ||
| import Answers from "@/components/Answers"; | ||
|
|
||
| export default function CSC202() { | ||
| return ( | ||
| <Questions | ||
| school="western delta university" | ||
| college="computing" | ||
| department="computer science" | ||
| session="2022/2023" | ||
| semester="second semester" | ||
| courseCode="CSC202" | ||
| courseTitle="assembly language programming" | ||
| allowedTime="2hrs" | ||
| instruction="answer question 1 and any other THREE questions" | ||
| > | ||
| <li> | ||
| <h4 className="mb-2 font-bold">Question 1</h4> | ||
| <ol className="flex list-[lower-alpha] flex-col gap-2"> | ||
| <li> | ||
| Write a complete assembly language program that computes | ||
| circumference of a circle given as <code>πr</code>, where{" "} | ||
| <code>r</code> is the radius of the circle, using the relevant | ||
| functions in <code>io.H</code>{" "} | ||
| <strong className="whitespace-nowrap">(5 marks)</strong> | ||
| <Answers questionNumber="1a" /> | ||
| </li> | ||
| <li> | ||
| Define the following: | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li> | ||
| Register{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="1bi" /> | ||
| </li> | ||
| <li> | ||
| Directive{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="1bii" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| <li> | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li> | ||
| Give the syntax of an assembly language directive{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="1ci" /> | ||
| </li> | ||
| <li> | ||
| State two examples of a directive{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="1cii" /> | ||
| </li> | ||
| <li> | ||
| Given the decimal number 27.625<sub>10</sub>, calculate its | ||
| binary equivalent{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="1ciii" /> | ||
| </li> | ||
| <li> | ||
| Given the hexadecimal number 15<sub>16</sub>, calculate its | ||
| binary equivalent{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="1civ" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| <li> | ||
| Write an assembly language representation for the following C | ||
| program segment: <br /> | ||
| <pre className="mb-2 mt-2 block"> | ||
| <code> | ||
| sum = 0, i = 0, x = 10; | ||
| <br /> | ||
| while (i <= 10) | ||
| <br /> | ||
| { | ||
| <br /> | ||
| {" "}sum = sum + x; | ||
| <br /> | ||
| {" "}x = x + 2; | ||
| <br /> | ||
| {" "} | ||
| i = i + 2; | ||
| <br /> | ||
| } | ||
| </code> | ||
| </pre> | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="1d" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
|
|
||
| <li> | ||
| <h4 className="mb-2 font-bold">Question 2</h4> | ||
| <ol className="flex list-[lower-alpha] flex-col gap-2"> | ||
| <li> | ||
| Identify the addressing mode in the following instructions: | ||
| <pre className="mb-2 mt-2 block"> | ||
| <code> | ||
| mov ax, 0ah | ||
| <br /> | ||
| mov bx, array + 10h | ||
| <br /> | ||
| mov ax, [si] + 16 | ||
| <br /> | ||
| mov ax, [si] | ||
| <br /> | ||
| inc cl | ||
| </code> | ||
| </pre> | ||
| <strong className="whitespace-nowrap">(5 marks)</strong> | ||
| <Answers questionNumber="2a" /> | ||
| </li> | ||
| <li> | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li> | ||
| Interpret the following instruction:{" "} | ||
| <code>array DW 100 DUP(0)</code>{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="2bi" /> | ||
| </li> | ||
| <li> | ||
| State two limitations of the <code>MOV</code> instruction{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="2bii" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| <li> | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li> | ||
| State the function of the{" "} | ||
| <strong> | ||
| <code>movsb</code> | ||
| </strong>{" "} | ||
| instruction{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="2ci" /> | ||
| </li> | ||
| <li> | ||
| Write an assembly language program segment to move the string:{" "} | ||
| <code> | ||
| "Sessional Examination for 2021/2022 is in Progress" | ||
| </code>{" "} | ||
| from its original location to a new location.{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="2cii" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
|
|
||
| <li> | ||
| <h4 className="mb-2 font-bold">Question 3</h4> | ||
| <ol className="flex list-[lower-alpha] flex-col gap-2"> | ||
| <li> | ||
| Define an Interrupt handler{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="3a" /> | ||
| </li> | ||
| <li className="list-[lower-alpha]"> | ||
| Given that the BIOS keyboard services is <code>INT 16h</code>, | ||
| calculate: | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li> | ||
| The address of the interrupt vector table{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="3bi" /> | ||
| </li> | ||
| <li> | ||
| State the last instruction in an interrupt handler{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="3bii" /> | ||
| </li> | ||
| <li> | ||
| State the function of the instruction stated in{" "} | ||
| <strong>(bii)</strong>{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="3biii" /> | ||
| </li> | ||
| <li> | ||
| What is the result of the execution of the instruction stated in{" "} | ||
| <strong>(bii)</strong>{" "} | ||
| <strong className="whitespace-nowrap">(2 marks)</strong> | ||
| <Answers questionNumber="3biv" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| <li> | ||
| Write an assembly language program segment that send a character to | ||
| the printer using a DOS function call.{" "} | ||
| <strong className="whitespace-nowrap">(3 marks)</strong> | ||
| <Answers questionNumber="3c" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
|
|
||
| <li> | ||
| <h4 className="mb-2 font-bold">Question 4</h4> | ||
| <ol className="flex list-[lower-alpha] flex-col gap-2"> | ||
| <li> | ||
| Define the following: | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li>Macro</li> | ||
| <li>Macro processor</li> | ||
| </ol> | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="4a" /> | ||
| </li> | ||
| <li> | ||
| Given that{" "} | ||
| <code> | ||
| s = x<sup>2</sup>y + xy; | ||
| </code> | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li> | ||
| Write a macro to compute <code>s</code>{" "} | ||
| <strong className="whitespace-nowrap">(3 marks)</strong> | ||
| <Answers questionNumber="4bi" /> | ||
| </li> | ||
| <li> | ||
| Write a FAR procedure to calculate <code>s</code>{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="4bii" /> | ||
| </li> | ||
| <li> | ||
| Highlight two differences between macro and procedure{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="4biii" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
|
|
||
| <li> | ||
| <h4 className="mb-2 font-bold">Question 5</h4> | ||
| <ol className="flex list-[lower-alpha] flex-col gap-2"> | ||
| <li> | ||
| In a word division using <code>IDIV</code> instruction, state the | ||
| register(s) that represents the following: | ||
| <ol className="mx-4 list-[lower-roman]"> | ||
| <li>Dividend</li> | ||
| <li>Quotient</li> | ||
| <li>Remainder</li> | ||
| </ol> | ||
| <strong className="whitespace-nowrap">(6 marks)</strong> | ||
| <Answers questionNumber="5a" /> | ||
| </li> | ||
| <li> | ||
| Write an assembly language program segment to demonstrate how the | ||
| following DOS function service is used: <code>09h</code>{" "} | ||
| <strong className="whitespace-nowrap">(3 marks)</strong> | ||
| <Answers questionNumber="5b" /> | ||
| </li> | ||
| <li> | ||
| The following are the scores of Efe in mid-semester test:{" "} | ||
| <code>56 67 89 82 64</code>. Write an assembly language program | ||
| segment that declares the scores, computes the total and average | ||
| scores. <strong className="whitespace-nowrap">(6 marks)</strong> | ||
| <Answers questionNumber="5c" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
|
|
||
| <li> | ||
| <h4 className="mb-2 font-bold">Question 6</h4> | ||
| <ol className="flex list-[lower-alpha] flex-col gap-2"> | ||
| <li> | ||
| State the function of <code>LEA</code>. Give one example of assembly | ||
| instruction illustrating the use of <code>LEA</code>{" "} | ||
| <strong className="whitespace-nowrap">(4 marks)</strong> | ||
| <Answers questionNumber="6a" /> | ||
| </li> | ||
| <li> | ||
| Write an assembly language representation for the following C | ||
| program segment{" "} | ||
| <pre className="mb-2 mt-2 block"> | ||
| <code> | ||
| y1 = 25; | ||
| <br /> | ||
| y2 = 30; | ||
| <br /> | ||
| printf("Enter value for variable a: "); | ||
| <br /> | ||
| scanf("%d", &a); | ||
| <br /> | ||
| if (a < 60) | ||
| <br /> | ||
| {" "}y1 = y1 + 10; | ||
| <br /> | ||
| {" "}printf("%d", y1); | ||
| <br /> | ||
| else | ||
| <br /> | ||
| {" "}y2 = y2 - 5; | ||
| <br /> | ||
| {" "}printf("%d", y1); | ||
| </code> | ||
| </pre> | ||
| <strong className="whitespace-nowrap">(6 marks)</strong> | ||
| <Answers questionNumber="6b" /> | ||
| </li> | ||
| <li> | ||
| Define Interrupt{" "} | ||
| <strong className="whitespace-nowrap">(7 marks)</strong> | ||
| <Answers questionNumber="6c" /> | ||
| </li> | ||
| <li> | ||
| Convert 256<sub>16</sub> to its decimal equivalent{" "} | ||
| <strong className="whitespace-nowrap">(3 marks)</strong> | ||
| <Answers questionNumber="6d" /> | ||
| </li> | ||
| </ol> | ||
| </li> | ||
| </Questions> | ||
| ); | ||
| } |
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