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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ### **匯編程序基本格式** ~~~ DATAS SEGMENT ;存放數據項的數據段 DATAS ENDS EXTRA SEGMENT ;存放數據項的附加段 EXTRA ENDS STACK1 SEGMENT PARA STACK ;堆棧段 STACK1 ENDS CODES SEGMENT ;代碼段 ASSUME CS:CODES,DS:DATAS,SS:STACK1,ES:EXTRA START: MOV AX,DATA MOV DS,AX ;段基址裝入DS MOV AX,EXTRA MOV ES,AX ;段基址裝入ES MOV AX,STACK1 MOV SS,AX ;段基址裝入SS ;程序核心操作 MOV AH,4CH ;系統功能調用 INT 21H ;返回操作系統中斷 CODES ENDS END START ~~~ ### **上機操作** 下載MASM匯編工具包 編寫test.ASM 代碼 進入MASM目錄 > 1.生成匯編程序 MASM test.ASM > 2.鏈接OBJ LINK test.OBJ > 3.運行匯編程序 test **DeBug調試匯編程序** > 1.DEBUG test.ASM > 2.-u 反匯編程序 找到本程序最后一條指令的段地址和有效地址1465H:001AH > 3.-g 1465:001A 執行運行命令 > 4.-d 觀察運行結果在數據段中的保存情況 > 5-q 退出調試程序 * * * * * **Holle world源碼** ~~~ DATA SEGMENT STRING DB 'Hello World!', '$' DATA ENDS STACK1 SEGMENT PARA STACK DW 20H DUP (0) STACK1 ENDS CODE SEGMENT ASSUME CS:CODE, DS:DATA, SS:STACK1 START: AX, DATA MOV DS, AX LEA DX, STRING MOV AH, 9 INT 21H MOV AH, 4CH INT 21H CODE ENDS END START ~~~
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