ex5.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。

#include <stdio.h>
    main() {
      int           a, b;
      unsigned int  x, y;
      a = b = 0xaa55;  x = y = 0xaa55;
      printf("\n a=%4x  b=%4x  x=%4x  y=%4x",a,b,x,y);
        a = a << 1;  b = b >> 1;
        x = x << 1;  y = y >> 1;
        printf("\n a=%4x  b=%4x  x=%4x  y=%4x",a,b,x,y);
        printf("\n");
        while(1);
    }