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https://github.com/dor-sketch/openu_course20471_asm

A collection of MIPS assembly language programs for CS students.
https://github.com/dor-sketch/openu_course20471_asm

assembly computer-organization mars mips mips-assembly

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A collection of MIPS assembly language programs for CS students.

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README 

        
# MIPS Assembly Language Programs Collection 💾



👨‍💻 This repository contains a collection of MIPS assembly language programs I developed during my studies in the *Computer Organization course (20471)* at the **Open University of Israel** in 2022a. These programs are crafted to demonstrate the versatility and practical applications of assembly programming in various domains.



🚀 Each program in this collection showcases unique functionalities, ranging from number systems and string manipulation to linked list operations in assembly language. Notably, the programs [`q2`](q2.asm) and [`q3`](q3.asm) were part of my course assignments and earned a perfect score of `100`. The program [`SumAndConvertInput`](SumAndConvertInput.asm) was developed later as a personal project, improving `q2` to handle user input, while exploring the intricacies of assembly programming.



📚🖥️ These projects serve as an excellent resource for educational purposes, offering insights into the intricacies of assembly language. Whether you're a student, a hobbyist, or someone curious about low-level programming, these programs provide a hands-on experience to deepen your understanding of assembly language.



*Enjoy exploring the features and functionalities of these assembly language programs! Dive into the world of programming and discover the power of MIPS assembly language.*



![Alt text](cover1.png)



- [SumAndConvertInput 🧮](#sumandconvertinput-)

  - [Overview 📌](#overview-)

  - [Features 🌟](#features-)

  - [How to Use 💡](#how-to-use-)

  - [Example 📝](#example-)

- [q3: Most Common Letter Finder and String Modifier 📝](#q3-most-common-letter-finder-and-string-modifier-)

  - [Overview 🌐](#overview--1)

  - [Features 🌟](#features--1)

  - [How to Use 💡](#how-to-use--1)

  - [Example 📝](#example--1)

- [q2: Linked-List Integer Sum and Quaternary Conversion 🧬](#q2-linked-list-integer-sum-and-quaternary-conversion-)

  - [Overview 🌐](#overview--2)

  - [Features 🌟](#features--2)

  - [How to Use 💡](#how-to-use--2)

- [System Requirements 🖥️](#system-requirements-️)

- [Contributions and Feedback 🤝](#contributions-and-feedback-)

- [License 📜](#license-)



---



## SumAndConvertInput 🧮



### Overview 📌



`SumAndConvertInput` is a versatile assembly program designed to process a list of user-input integers. This program offers functionalities including summing all entered numbers, calculating the sum of negative numbers, and converting each number in the list to its quaternary (base-4) representation. It's an excellent tool for educational purposes and for those interested in number systems and their conversions.



### Features 🌟



- **Sum Calculation**: Compute the sum of all entered integers.

- **Negative Sum**: Calculate the sum of only the negative numbers in the list.

- **Quaternary Conversion**: Convert each number in the list to its equivalent in the quaternary numeral system.



### How to Use 💡



- Compile the program using a MIPS assembler.

- Run the compiled program.

- Input numbers as prompted (end input with `-9999`).

- View results for sum, negative sum, and quaternary conversion.



### Example 📝



![Alt text](SumAndConvertInput.png)



---



## q3: Most Common Letter Finder and String Modifier 📝



### Overview 🌐



`q3` identifies the most common letter in a static string, deletes its occurrences, and allows for iterative processing on the modified string.



### Features 🌟



- **Finding the Most Common Letter**: Identify the most frequently occurring letter in a predefined string.

- **Lexicographic Ordering**: Display string characters in lexicographic order based on their occurrence count.

- **Interactive Deletion**: Restart the program with the modified string for continuous processing.



### How to Use 💡



- Compile the program with a MIPS assembler.

- Run the compiled code in a MIPS-compatible simulator or environment.

- Observe outputs for the most common letter, lexicographically ordered string, and deletion functionality.



### Example 📝



The following example demonstrates the program's functionality for the string `"AEZKLBXWZXYALKFKWZRYLAKWLQLEK"`, which has the most common letter `"L"`. Notice that the program restarts with the modified string after each deletion.



![Alt text](image.png)



---



## q2: Linked-List Integer Sum and Quaternary Conversion 🧬



### Overview 🌐



`q2` operates on a predefined linked list of integers, computing their sum and converting them to quaternary numeral system representation.



![Alt text](cover2.png)



### Features 🌟



- **Summing Numbers**: Calculate the sum of all integers in the linked list.

- **Summing Positive Numbers Divisible by 4**: Sum positive numbers in the list divisible by 4.

- **Quaternary System Representation**: Convert and display each number in the list to its quaternary equivalent.



### How to Use 💡



- Compile the program using a MIPS assembler.

- Run the compiled code in a MIPS-compatible environment or simulator.

- Observe the outputs for total sum, sum of positives divisible by 4, and quaternary representation.



---



## System Requirements 🖥️



- MIPS architecture (or an emulator like MARS MIPS simulator).

- Basic understanding of assembly language.



## Contributions and Feedback 🤝



Contributions, suggestions, and feedback are welcome! Feel free to open an issue or submit a pull request.



## License 📜



These projects are open source and available under the [MIT License](LICENSE).