Microprocessor and Microcontroller Lab (ECE-309) - 8086 Assembly Language Programs

Aim of Experiments

1. Experiment 1: Addition of Two Numbers
   Perform the addition of two numbers using the 8086 microprocessor.

2. Experiment 2: Arithmetic Operations on 8-bit Numbers
   Perform arithmetic operations (addition, subtraction, multiplication, and division) on two 8-bit numbers using the 8086 microprocessor.

3. Experiment 3: Arithmetic Operations on 16-bit Numbers
   Perform arithmetic operations (addition, subtraction, multiplication, and division) on two 16-bit numbers using the 8086 microprocessor.

4. Experiment 4: Smallest and Largest Number
   Find the smallest and largest number from a set of entered data bytes/words.

5. Experiment 5: Sorting Data in Ascending and Descending Order
   Arrange five data bytes/words in ascending and descending order.

6. Experiment 6: Square and Cube Root Calculation
   Perform the calculation of the square of a number and the cube root of a number.

7. Experiment 7: Segregating Odd and Even Numbers
   Segregate an array of numbers into odd and even parts.

8. Experiment 8: Average and Factorial Calculation
   Calculate the average of five 8-bit numbers and compute the factorial of a number.

9. Experiment 9: Palindrome Check and BCD to Binary Conversion
   Check whether a string is a palindrome and convert a BCD number into binary format.

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How to Install MASM on Windows

Follow these steps to set up MASM (Microsoft Macro Assembler) on your Windows PC using DOSBox.

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1. Set Up DOSBox on Your OS

First, you need to download and install DOSBox:

1. Visit this link: Download DOSBox
2. Click on Download.
3. Wait 5 seconds for the download to start automatically.
4. After downloading, install DOSBox on your PC.
   
   If you need help installing DOSBox, refer to this Guide on Installing DOSBox on Windows.

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2. Download 8086.rar

1. Visit this link: Download 8086.rar (Replace with the actual link)
2. Click on Download.

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3. Set Up 8086.rar

1. Open the downloaded ZIP file from Step 2.
2. Extract and copy the 8086 folder to the C: drive.

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4. Create an Assembly File (.asm)

1. Open your favorite code editor.

2. Enter the following code:

   ; Hello World program by 360 Tech Explorer’s
   
   DATAS  SEGMENT
        STRING  DB  'Hello World!',13,10,'$'
   DATAS  ENDS
   
   CODES  SEGMENT
        ASSUME    CS:CODES, DS:DATAS
   
   START:
        MOV  AX, DATAS
        MOV  DS, AX
   
        LEA  DX, STRING
   
        MOV  AH, 9
        INT  21H 
   
        MOV  AH, 4CH
        INT  21H
   CODES  ENDS
   END   START

3. Save this file with the .asm file extension (e.g., hello.asm).

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5. Run the Assembly File in DOSBox

1. Open DOSBox.

2. Enter the following command to mount the 8086 directory as a C drive:

   Z:> mount c c:\8086

3. Navigate to drive C:

   Z:> c:

4. If you want to create a new assembly file:

   C:> edit file_name.asm

5. If you already have the assembly file, follow these steps:

   • Copy your assembly file to the C:\8086 folder.

   • Run the following commands:

     C:> masm your_file_here.asm
     C:> link your_file_here.obj
     C:> your_file_here.exe

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That's it!

You've successfully set up MASM and executed an assembly program on Windows using DOSBox.

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Prepared by:
Name: Jjateen Gundesha
Registration Number: BT22ECI002

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For Juniors:

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