8086听键盘同时借鉴 [英] 8086 listen to keyboard while drawing

问题描述

我熟悉等待键盘输入INT 16H，但我正在开发一个游戏，我想那里是一个游戏循环，在屏幕上动画的东西，每当有一个键盘命中， 8086应该去我的中断处理程序，并告诉我哪个键已经pssed相应地更新我的数据$ p $。

I'm familiar with INT 16h that waits for keyboard input, but I'm developing a game and I would like there to be a game loop, that animates things on the screen, and whenever there is a keyboard hit, the 8086 should go to my interrupt handler and tell me which key has been pressed to update my data accordingly.

我怎么可以这样做？

推荐答案

您也可以用1 AH而不是0，调用INT 16时轮询输入。

You can also poll for input with 1 in AH instead of 0, when calling INT 16.

INT 16h / AH = 01h - check for keystroke in the keyboard buffer.

    return:

        ZF = 1 if keystroke is not available.
        ZF = 0 if keystroke available.
        AH = BIOS scan code.
        AL = ASCII character.
        (if a keystroke is present, it is not removed from the keyboard buffer). 

（来源）

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