reentrant.c

来自「单片及c语言轻松入门的随书光盘」· C语言 代码 · 共 22 行

#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
void PageWrite(uchar Data[],uint Address,uchar Num) reentrant
{	Data[0]++;
	Address++;
	Num++;
}
void main()
{ 	uchar Date[4];
	EA=1;
	EX0=1;	//开中断
    for(;;)
	{
		PageWrite(Date,4,2);	//保存当前计数值
	}

}
void Save() interrupt 0
{	uchar Date[4];
	PageWrite(Date,5,2);
}