-
中断服务程序的关键是：1.保护进入中断时的状态，并在退出中断之前恢复进入时的状态。2.必须在中断程序中设定是否允许中断重入，即设置EX0位。
本例中使用了I...
中断服务程序的关键是：1.保护进入中断时的状态，并在退出中断之前恢复进入时的状态。2.必须在中断程序中设定是否允许中断重入，即设置EX0位。
本例中使用了INT0中断，一般中断程序进入时应保护PSW，ACC以及中断程序使用但非其专用的寄存器。本例的INT0程序保护了PSW，ACC，2等三个寄存器并且在退出前恢复了这三个寄存器。另外中断程序中涉及到关键数据的设置时应关中断，即设置时不允许重入。本例中没有涉及这种情况。
实验开始时K8应在H（高电平）端，要产生中断时先拨向L（低电平）端再拨回H端。
-Interrupt service s key is: 1. the protection enters when the interrupt condition, and when the withdrawal interrupt before regains enters the condition. 2. must in the interrupt routine establish whether to permit the interrupt re-entry, namely establishes the EX0 position. in this example has used the INT0 interrupt, generally the interrupt routine enters when should protect PSW, ACC as well as the interrupt routine use but non-its special-purpose register. This example INT0 program protection PSW, ACC,2 and so on three registers, and restored these three registers before the withdrawal. Moreover in the interrupt routine involves to when the essential data establishment should close the interrupt, namely when establishment does
- 2022-03-22 04:01:46下载
- 积分：1
-
vb程序排序与查找
vb程序排序与查找-vb ranking and search procedures
- 2022-08-26 08:30:20下载
- 积分：1
-
an arithmetic software on the network game "Mu".it was used to enjoy myself in t...
网游奇迹的战士配点算法软件，是当初游戏时自己编写来玩的，采用VC编写，界面简单使用方便！-an arithmetic software on the network game "Mu".it was used to enjoy myself in the first. it was writen by Vc ,and was designed very convenient to use .
- 2022-02-20 17:45:12下载
- 积分：1
-
视频调试EVC 应用DDRAW 480*240大小
视频调试EVC 应用DDRAW 480*240大小-EVC debug video applications DDRAW 480* 240 size
- 2022-01-21 22:28:49下载
- 积分：1
-
控制你的Windows桌面和任务条.doc demo为示例工程，将整个目录拷贝到硬盘上编译连接...
控制你的Windows桌面和任务条.doc demo为示例工程，将整个目录拷贝到硬盘上编译连接-control your Windows desktop and taskbar. Doc demo for example, the entire catalog copy to the hard drive connected to compile
- 2023-07-17 13:15:03下载
- 积分：1
-
活动安排，活动安排 活动安
活动安排，活动安排 活动安
- 2022-04-28 17:50:58下载
- 积分：1
-
图书管理系统，用类实现，从文件中读取…
图书管理系统，采用分类实现，从文件中读取信息，健壮性不是很好，是基于c++类的操作，
- 2022-07-21 06:45:49下载
- 积分：1
-
学习如何将程序托盘的小程序，很实用，简单。
学习如何将程序托盘的小程序，很实用，简单。-Learn how to program a small procedure trays, it is practical, simple.
- 2022-12-06 03:30:03下载
- 积分：1
-
自己写的，请参考。
[Servlet与JSP]用java实现上传下载功能
自己写的，请参考。
[Servlet与JSP]用java实现上传下载功能 - Own write, please refer. [ Servlet and JSP ] realize with java
on passes on the downloading function
- 2022-01-26 05:49:28下载
- 积分：1
-
photo processing, prepared by the VB, functional, though not great, but the proj...
图片处理程序,用VB编写的,功能虽然不是很大,但很景致,望大家指点-photo processing, prepared by the VB, functional, though not great, but the project, we hope guidance
- 2022-02-09 18:27:03下载
- 积分：1
