X86彙編實例（使用Irvine32庫） - 之一

問題：
Write a program that clears the screen, locates the cursor near the
middle of the screen, prompts the user for two integers, adds the
integers, and displays their sum. You will need to use the ClrScr,
Gotoxy, WriteString, Crlf, and ReadInt procedures from the Irvine32
library.

代碼：

TITLE MASM Template        (main.asm)

; Description:
;
; Revision date:

INCLUDE Irvine32.inc

.data
input1stIntMsg BYTE "Input the 1st integer: ",0
input2ndIntMsg BYTE "Input the 2nd integer: ",0
outputSumMsg BYTE "The sum of the two integers: ",0

num1  DWORD ?
num2  DWORD ?
sum  DWORD ?

.code
main PROC
        call Clrscr     ; clear screen

        ; read the first number        
        mov dl, 20        ; set the column
        mov dh, 11        ; set the row
        call Gotoxy     ; move the cursor to near the center
        
        ; output the prompt message
        mov    edx,OFFSET input1stIntMsg
        call WriteString
        
        call ReadInt    ; read integer
        mov num1, eax ; store the value

        ; read the second number
        mov dl, 20        ; set the column
        mov dh, 12        ; set the row
        call Gotoxy     ; move the cursor to near the center
        
        ; output the prompt message
        mov    edx,OFFSET input2ndIntMsg
        call WriteString
        
        call ReadInt    ; read integer
        mov num2, eax ; store the value
        
        ; compute the sum
        mov eax, num2
        add  eax, num1
        mov sum, eax
        
        ; output result
        mov dl, 20        ; set the column
        mov dh, 13        ; set the row
        call Gotoxy     ; move the cursor to near the center
        
        mov edx, OFFSET outputSumMsg
        call WriteString
        
        mov eax, sum
        call WriteInt

        exit
main ENDP

END main

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