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۲٫۳ Assignment 2: subroutines and I/O

In this assignment you will write your first simple subroutine. You will also learn how to obtain

input from the user. The scanf subroutine from the C standard library can be used to obtain

input from users. It is discussed in paragraph 3.4.2 of the reference section. Paragraph 3.3.2

explains how to define your own subroutines.

Exercises:

۱٫ Using the skeleton file provided in the framework and the coding steps learned in assignment

۲, alter the printed message in such a way that it prints the correct assignment name (“As-

signment 2: inout”). Create a subroutine called inout and call it from within your my main

routine right after your message is displayed. At first, your subroutine should simply return

immediately. Build and test your program.

۲٫ Add a subroutine my increment, that takes one number as an input and returns its incre-

ment.

۳٫ Alter your inout subroutine in such a way that it asks the user for a number, uses the

my increment subroutine to increment it, and prints the result on the terminal. Build and

test your program and save it for later approval.

Important: For this assignment, you must have your submission checked by a Teaching

Assistant alongside Assignment 1. Only enter the submission queue when both assignments are

fully implemented and passing all CodeGrade tests.

اینم فایلش هست :

# *****

# * Program name: inout                                                           *

# * Description :                                                                 *

# *****

#ifndef MACOS

.ifndef CODEGRADE

.global main

main: jmp my_main

.endif

#else

.global _main

_main: jmp my_main

printf: jmp _printf

scanf: jmp _scanf

exit: jmp _exit

#endif

.text

# your strings here

.global my_main                         # make my_main accessible globally

.global my_increment                    # make my_increment accessible globally

my_main:

# set up the stack frame

call    inout

# clear the stack and return

inout:

# read input and increment it using my_increment

call    my_increment

# output incremented number

my_increment:

# IMPLEMENT ME