Description: Write and test a MASM program to perform the following tasks: 1. Di
ID: 3782091 • Letter: D
Question
Description:
Write and test a MASM program to perform the following tasks:
1. Display your name and program title on the output screen.
2. Display instructions for the user.
3. Prompt the user to enter two numbers.
4. Calculate the sum, difference, product, (integer) quotient and remainder of the numbers.
5. Display a terminating message.
Requirements:
1. The main procedure must be divided into sections:
introduction
get the data
calculate the required values
display the results
say goodbye
2. The results of calculations must be stored in named variables before being displayed.
Explanation / Answer
INCLUDE Irvine32.inc
.data
myName BYTE "chegs ", 0
programTitle BYTE"Programming Assignment ", 0
instructions BYTE "Please enter two numbers, and I'll show you the sum, difference, product, quotient, and remainder.", 0
prompt_1 BYTE "First Number: ", 0
prompt_2 BYTE "Second Number: ", 0
firstNumber DWORD ? ; integer entered by user
secondNumber DWORD ? ; second integer entered by user
.
goodBye BYTE "Goodbye",0
equalsString BYTE " = ", 0
sum DWORD ?
sumString BYTE " + ",0
difference DWORD ?
differenceString BYTE " - ",0
product DWORD ?
productString BYTE " * ",0
quotient DWORD ?
quotientString BYTE " / ",0
remainder DWORD ?
remainderString BYTE " remainder ",0
;
.code
main PROC
; Introduction
; Get The Data
; This section gets the first and second number and jumps if the user's second number is greater than the first number
; the program will still allow them to loop even if they enter a second number that is greater than the first.
mov edx, OFFSET instructions
call WriteString
call CrLf
; get firstNumber
top:
mov edx, OFFSET prompt_1
call WriteString
call ReadInt
mov firstNumber, eax
; get secondNumber
mov edx, OFFSET prompt_2
call WriteString
call ReadInt
mov secondNumber, eax
; **EC: Jump if second number greater than first
mov eax, secondNumber
cmp eax, firstNumber
jg Warning
jle Calculate
Warning:
mov edx, OFFSET EC1warn
call WriteString
call CrLf
jg JumpToLoop ; jump if secondNumber > firstNumber
Calculate: ; Calculate Required Values
; sum
mov eax, firstNumber
add eax, secondNumber
mov sum, eax
; difference
mov eax, firstNumber
sub eax, secondNumber
mov difference, eax
; product
mov eax, firstNumber
mov ebx, secondNumber
mul ebx
mov product, eax
; quotient
mov edx, 0
mov eax, firstNumber
cdq
mov ebx, secondNumber
cdq
div ebx
mov quotient, eax
mov remainder, edx
; Display Results
; sum results
mov eax, firstNumber
call WriteDec
mov edx, OFFSET sumString
call WriteString
mov eax, secondNumber
call WriteDec
mov edx, OFFSET equalsString
call WriteString
mov eax, sum
call WriteDec
call CrLf
; difference results
mov eax, firstNumber
call WriteDec
mov edx, OFFSET differenceString
call WriteString
mov eax, secondNumber
call WriteDec
mov edx, OFFSET equalsString
call WriteString
mov eax, difference
call WriteDec
call CrLf
; product results
mov eax, firstNumber
call WriteDec
mov edx, OFFSET productString
call WriteString
mov eax, secondNumber
call WriteDec
mov edx, OFFSET equalsString
call WriteString
mov eax, product
call WriteDec
call CrLf
; quotient results
mov eax, firstNumber
call WriteDec
mov edx, OFFSET quotientString
call WriteString
mov eax, secondNumber
call WriteDec
mov edx, OFFSET equalsString
call WriteString
mov eax, quotient
call WriteDec
mov edx, OFFSET remainderString
call WriteString
mov eax, remainder
call WriteDec
call CrLf
;calculate remainder
mov eax, firstPart
mul oneThousand
mov temp, eax
mov eax, bigInt
sub eax, temp
mov secondPart, eax
call WriteDec
call CrLf
; Loop until user quits
; prompts the user to enter a 0 or 1 to continue looping.
; if they do want to play again, it takes them to section 'top'
; skipping the instrucitons
; get response for loop
JumpToLoop:
mov edx, OFFSET
call WriteString
cmp eax, 1
je top ; jump to top if response == 1
; Say Goodbye
mov edx, OFFSET goodBye
call WriteString
call CrLf
exit
; exit to operating system
main ENDP
END main