Question

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BN M Ar Section 3: There are four questions in this section. Answer the three questions that you prefer Each question is worth 15 points. If you answer all four questions, then only the first three wil be considered. This section is worth 45 points. (15 points total) (10 points) Write a full program in YASM which displays "Assembly is Great!" to the console. Provide comments for each line (5 points) Write a program in YASM which accomplishes that same thing, however now utilize extern printf

Answer 1

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ANSWER:

CODE:

a)

;Start

org 100h

;Address

mov dx,msg  

;Sub function

mov ah,9

;Dos service

int 21h  

;sub function

mov ah,4Ch

;Dos service

int 21h

;End

msg db 'Assembly is great!',0Dh,0Ah,'$'

b)

;Main

global _main

     ;Printf

    extern _printf

     ;Define section

    section .text

    

;Define main

_main:

     ;Push

    push    message

    

     ;Call method

    call    _printf

    

     ;Add

    add     esp, 4

    

     ;;Return

    ret

    

;Define method

message:

     ;Display

    db 'Assembly is great!', 10, 0

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