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https://github.com/shingareom/microprocessordiplomaproject

This project is a simple assembly language program that searches for a user-entered number in a predefined array. The program is written in x86 assembly language and runs on a DOS environment. The purpose is to demonstrate basic input/output operations and array processing in assembly language.
https://github.com/shingareom/microprocessordiplomaproject

asm assembly diploma omshingare shingareom

Last synced: about 1 month ago
JSON representation

Host: GitHub
URL: https://github.com/shingareom/microprocessordiplomaproject
Owner: ShingareOm
License: mit
Created: 2024-08-28T13:29:49.000Z (4 months ago)
Default Branch: master
Last Pushed: 2024-08-28T13:42:42.000Z (4 months ago)
Last Synced: 2024-11-21T00:59:50.009Z (about 1 month ago)
Topics: asm, assembly, diploma, omshingare, shingareom
Language: Assembly
Homepage: https://omshingare.me
Size: 3.91 KB
Stars: 1
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

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README

# Number Search in Array (Assembly Language)

## Overview

![Project Img](https://github.com/user-attachments/assets/78e2eeaa-7f17-47ed-a7bc-ebe60c0e816a)

## Author

- [Om Shingare](https://github.com/ShingareOm)

## Features

- Prompts the user to enter a number.
- Searches for the entered number in a predefined array.
- Displays the index of the number if it is found.
- Displays a message indicating the number is not present if it is not found.

## Program Flow

1. **Initialization**:
- Set up the data segment and initialize pointers and registers.

2. **User Input**:
- Prompt the user to enter a number.
- Read the user's input and store it in the `num` variable.

3. **Search Operation**:
- Traverse through the predefined array (`myarr`).
- Compare each element with the user-entered number.
- If the number is found, jump to the `exit` label to display the index.
- If the number is not found by the end of the array, jump to the `exitt` label to display a not-found message.

4. **Output**:
- Display the index of the number if found.
- Display a message indicating the number is not present if not found.

5. **Exit**:
- Terminate the program.

## Code Explanation

- **Data Segment**:
- `myarr`: An array of numbers to be searched.
- `num`: The number input by the user.
- `index`: To store the current index during the search.
- `isfound`: A flag to indicate if the number was found.
- `enter`, `found`, `notfound`: Strings for user interaction.

- **Code Segment**:
- Uses `int 21h` for DOS interrupt services to handle input and output.
- Utilizes loop constructs and conditional jumps to search the array.

## Usage

1. **Compile**:
- Assemble the code using an assembler such as MASM or TASM.

2. **Run**:
- Execute the compiled program in a DOS environment or DOS emulator.

3. **Enter a Number**:
- Follow the on-screen prompts to enter a number between 0 and 9.

4. **View Results**:
- The program will display whether the number was found and its index or indicate that the number is not present.

## Example

```
Enter the number: 5
number is present in the array at index 4
```

## Notes

- Ensure that you are using a DOS environment or emulator like DOSBox to run this assembly program.
- The code is designed for educational purposes and may require modifications for different environments or more complex use cases.

## License

This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for more details.