＆是什么QUOT; INT 21H＆QUOT;在大会是什么意思？ [英] What does "int 21h" mean in Assembly?

问题描述

我是新来学习汇编语言，我想知道什么命令 INT 21H 表示。例如：

I'm new to learning assembly language, and I'm wondering what the command int 21h means. For example:

 mov ah,01h
 int 21h

哪些应该阅读来自用户的键。预先感谢您的回答。

Which should read a key from the user. Thanks in advance for your answer.

推荐答案

INT 21H的手段，调用中断处理程序为0x21这是DOS功能调度程序。在MOV啊，01H是设置AH为从0x01，这是键盘输入与在中断处理程序回声。参见：

int 21h means, call the interrupt handler 0x21 which is the DOS Function dispatcher. the "mov ah,01h" is setting AH with 0x01, which is the Keyboard Input with Echo handler in the interrupt. See:

HTTP：//www.htl-steyr .ac.at /〜MORG / pcinfo /硬件/中断/ inte2k4w.htm

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