Write an assembly program that displays “Hello World” on the screen

Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
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Q1) Write an assembly program that displays “Hello World” on the screen.

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Step 1

Program:

.model tiny                              ;code, data & program in 1 64K segment

.code                                       ;code segment

MAIN PROC
                       
    MOV AH, 09h                    ;function to display a string
    MOV DX, offset message  ;offset of Message string terminated with $

    int 21h                                 ;DOS interrupt
    MOV AH, 4ch                    ;funtion to terminate
    int 21h                                 ;DOS interrupt

ENDP
message db "Hello World $"   ;Message to be displayed terminated with $(indicates end of string)

END MAIN

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