ex4-8.c

这是《Keil Cx51 V7.0单片机高级语言编程与uVision2应用实践》教材各章中列出的全部程序例子。

char *c_ptr;                  /* char ptr */
int *i_ptr;                   /* int ptr */
long *l_ptr;                  /* long ptr */

void main (void)
{
char data dj;               /* data vars */
int data dk;
long data dl;

 char xdata xj;             /* xdata vars */
 int xdata xk;
 long xdata xl;

 char code cj = 9;          /* code vars */
 int code ck = 357;
 long code cl = 123456789;


 c_ptr = &dj;               /* data ptrs */
 i_ptr = &dk;
 l_ptr = &dl;

 c_ptr = &xj;               /* xdata ptrs */
 i_ptr = &xk;
 l_ptr = &xl;

 c_ptr = &cj;               /* code ptrs */
 i_ptr = &ck;
 l_ptr = &cl;
}