COMP1036 Coursework Part II

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COMP1036 Coursework Part II (25 marks)
Release Date: 24 November 2024 17:00
Deadline: 20 December 2024 17:00

Tasks

Write a program in Hack Assembly Language that sorts an array of integers in ascending or descending order. The unsorted array contains 5 or more elements, located at a range of memory locations starting from RAM[50]. The integers in the array can be positive, negative, or zero.

The program should allow you to sort either the entire array or a portion of it. The number of elements to be sorted is determined by the integers stored in RAM[0] and RAM[1], as described below:

Read two input values, X and Y, from RAM[0] and RAM[1], respectively, and output the computed result, Z, to RAM[2]. X and Y can be positive or negative. The program should function correctly regardless of whether X < Y, X > Y, or X = Y.

Different rules will be applied based on whether X and Y are even or odd integers, as follows:

(1) IF both X and Y are even integers, THEN Z is the sum of all even integers between X and Y (inclusive).
(2) IF both X and Y are odd integers, THEN Z is the sum of all odd integers between X and Y (inclusive).
(3) IF one of X or Y is odd and the other is even, THEN Z is the sum of all integers between X and Y (inclusive).
(4) IF X = Y, THEN Z = X or Z = Y.
(5) IF Z is positive, THEN sort the array in ascending order.
(6) IF Z is negative, THEN sort the array in descending order.
(7) IF Z is zero, THEN no sorting should be done.

Example 1:

Given RAM[0] = X = -4; RAM[1] = Y = 2

The range of integers between X and Y (inclusive) is [-4, -3, -2, -1, 0, 1, 2].

Applying Rule (1): RAM[2] = Z = (-4) + (-2) + 0 + 2 = -4.

Applying Rule (6) for Z = -4: Sort the first 4 elements of the array in descending order.

Example 2:

Given RAM[0] = X = -5; RAM[1] = Y = 5

The range of integers between X and Y (inclusive) is [-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5].

Applying Rule (2): RAM[2] = Z = (-5) + (-3) + (-1) + 1 + 3 + 5 = 0.

Applying Rule (7) for Z = 0: No sorting should be done.

Example 3:

Given RAM[0] = X = 2; RAM[1] = Y = 3

The range of integers between X and Y (inclusive) is [2, 3].

Applying Rule (3): RAM[2] = Z = 2 + 3 = 5.

Applying Rule (5) for Z = 5: Sort the first 5 elements of the array in ascending order.

Example 4:
Given RAM[0] = X = 3; RAM[1] = Y = 3
The range of integers between X and Y (inclusive) is [3].
Applying Rule (4): RAM[2] = Z = 3.
Applying Rule (5) for Z = 3: Sort the first 3 elements of the array in ascending order.
Some Input and Output Examples:


In

Out 
In
Out
 In
Out
 In
Out
 In
Out
 In
Out
 In
Out
 In
Out
 In
Out 
In
Out
RAM[0]
1

-2

2

-4
-3
-4
-5
-5
3
5
RAM[1]
1

3

3

2

-2

5

4

5

3

-4
RAM[2]

1

3

5

-4

-5

5

-5

0

3

5
Ignore the values in RAM[3], RAM[4], …, RAM[49]
RAM[50] 
3
3
3
2
3
1
3
5
3
5
-3
-5
-3
-1
3
3
3
2
-3
-5
RAM[51] 
2
2
2
3
2
2
2
3
2
4
-2
-4
-2
-2
2
2
2
3
-2
-4
RAM[52] 
5
5
5
5
5
3
5
2
5
3
-5
-3
-5
-3
5
5
5
5
-5
-3
RAM[53] 
1
1
1
1
1
4
1
1
1
2
-1
-2
-1
-4
1
1
1
1
-1
-2
RAM[54] 
4
4
4
4
4
5
4
4
4
1
-4
-1
-4
-5
4
4
4
4
-4
-1

Requirements

1. RAM[0] and RAM[1] are reserved for holding the two input values, X and Y, respectively.
2. RAM[2] is reserved for the value Z, which is the number of elements in the array to be sorted. This value is computed from the integers stored in RAM[0] and RAM[1].
3. RAM[50] onwards are reserved for holding the array integers before sorting, as well as the results after sorting.
4. Sample test cases are provided to evaluate your program, but the final test cases will be different from the sample test cases.
5. You should use the sample test file to evaluate your program. Your program will be finally evaluated using a similar test file. Failure to comply with the test file format may result in your program failing the final test cases.
6. You should anticipate that the size of the array in the final test cases may vary and could be larger or smaller than 5. However, you do not need to be concerned about scenarios where the value Z in RAM[2] exceeds the size of the array in a given test case.
7. Ensure that your program is bug-free. A zero mark will be immediately given to non-executable code.
8. You should complete all tasks in one assembly file. Name your assembly file “main.asm”.

Marking Criteria

1. 25 marks in total.
2. 20 test cases will be used, each test case carrying one mark.
3. Your program should be well-structured and thoroughly documented. A total of 5 marks will be awarded for the effective use of pseudocode, built-in symbols, labels, variables, comments, and indentation.

4. The efficiency of your program will also be considered. A limited number of tick-tocks will be given for each test case. If your program does not generate the expected results within the given number of tick-tocks, you will lose one mark for that test case.

Plagiarism

If you use code from a textbook or the web, you must acknowledge it. Plagiarism detection tools will be used to check for similarities between submissions and web-based material. You are reminded of the school's policy on plagiarism.

How to submit?

You should zip your file “main.asm” into one zip file. Name your zip file: YOURSTUDENTID_YOURNAME.zip (e.g., 20514000_Danting_Wang.zip).

Remember to include your student ID and your name at the beginning of the “main.asm” file. Submit your zip file to the Moodle page. Please note that each new submission overwrites all the files from the previous one. If you submit several times, ensure that your last submission is the correct version.

Check the submission after you submit it. There have been instances in the past where the submitted file was corrupted. Ensure that the submitted file is complete and executable. You will receive zero marks if your submitted file is corrupted or not executable.

For late submissions, the standard late submission policy applies: a 5% marks deduction for every 24 hours, including weekends and public holidays.

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