Write an assembly language program that corresponds to the following C++ program

Question

Write an assembly language program that corresponds to the following C++ program. Comment each line except STOP & .END.

Add something to the output that makes this program uniquely yours.

Cut & paste the Source Code into your document.

#include

<iostream>

using

namespace std;

int a;

int b;

int c;

int sum;

int out;

int main() {

cin>>a>>b>>c;

sum = a + b + c;

out = sum / 2;

cout<<"first input=" <<a <<endl;

cout<<"second input=" <<b <<endl;

cout<<"third input=" <<c <<endl;

cout<<endl;

cout<<"sum=" <<sum <<endl;

cout<<"output=" <<out <<endl;

return 0;

}

Explanation / Answer

ExitProcess PROTO NEAR32 stdcall, dwExitCode:DWORD

INCLUDE io.h ; header file for input/output

cr EQU 0dh ; carriage return character
Lf EQU 0ah ; line feed

.STACK 4096 ; reserve 4096-byte stack

.DATA ; reserve storage for data
number1 DWORD ?
number2 DWORD ?
number3 DWORD ?
prompt1 BYTE "Enter first number: ", 0
prompt2 BYTE "Enter second number: ", 0
prompt3 BYTE "Enter third number: ", 0
string BYTE 40 DUP (?)
label1 BYTE cr, Lf, "The sum is "
sum BYTE 11 DUP (?)
BYTE cr, Lf, 0

.CODE ; start of main program code
_start:
output prompt1 ; prompt for first number
input string, 40 ; read ASCII characters
atod string ; convert to integer
mov number1, eax ; store in memory

output prompt2 ; repeat for second number
input string, 40
atod string
mov number2, eax

output prompt3 ;repeat for third number
input string, 40
atod string
mov number3, eax

mov eax, number1 ; first number to EAX
add eax, number2 ; add second number
mov eax, number2 ; second number to EAX
add eax, number3 ; add third number
mov eax, number3 ; third number to EAX
dtoa sum, eax ; convert to ASCII characters
output label1 ; output label and sum

INVOKE ExitProcess, 0 ; exit with return code 0

PUBLIC _start ; make entry point public

END ; end of source code

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.