🧠 MicroprocessorLab

Assembly Language Programming (8086 / .asm Codes)

This repository contains simple and structured 8086 Assembly Language programs for learning and practicing microprocessor fundamentals — covering data movement, arithmetic operations, loops, strings, and system calls using INT 21h.
Each code is designed for educational purposes, helping students understand how low-level instructions interact with CPU registers and memory.

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⚙️ How to Run Assembly Code in VS Code

Follow these simple steps to run .asm files in Visual Studio Code:

1. OPEN VS CODE
   Launch Visual Studio Code on your computer.

2. INSTALL EXTENSION

   • Open Extensions (Ctrl + Shift + X / Cmd + Shift + X)
   • Search for “MASM/TASM”
   • Install the extension

3. CREATE ASM FILE

   • Create a new file with .asm extension (e.g., hello.asm)
   • Write your assembly code in the file

4. RUN THE CODE

   • Right-click anywhere in your .asm file
   • Select “Run ASM code”
   • The DOSBox emulator will open and execute your program

NOTES:

• The extension uses DOSBox to emulate 8086 execution
• Ensure your code follows standard 8086 assembly syntax
• Program output appears in the emulator window

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🧩 Example Program Structure

.MODEL SMALL
.STACK 100H
.DATA
    ; your data here
.CODE
MAIN PROC
    ; your code here
    MOV AH, 4CH    ; exit program
    INT 21H
MAIN ENDP
END MAIN