name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"> #include <stdio.h>
#include <dos.h>
#include <stdlib.h>
void interrupt far (*original_handler)();
void interrupt far handler(void)
{
printf("Some event just happened/n");
_disable();
_dos_setvect(0xFF, original_handler);
_enable();
exit(0);
}
void main(void)
{
int i = 0;
original_handler = _dos_getvect(0xFF);
_disable();
_dos_setvect(0xFF, handler);
_enable();
while (i++ < 100)
;
geninterrupt(0xFF);
}
本文介绍了一个使用C语言实现的简单中断处理程序。该程序通过设置中断向量,在特定中断发生时调用自定义处理函数,展示了一种基本的中断处理机制。程序包括了中断向量的设置与恢复,以及如何在中断服务例程中打印信息。
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