tst_crol.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 <intrins.h>
void tst_crol (void) {
    char a;
    char b;
    a = 0xA5;
    b = _crol_(a,3);   /* b now is 0x2D */
          }

void tst_irol (void) {
  int a;
  int b;
  a = 0xA5A5;
  b = _irol_(a,3);     /* b now is 0x2D2D */
}

void tst_lrol (void) {
  long a;
  long b;
  a = 0xA5A5A5A5;
  b = _lrol_(a,3);     /* b now is 0x2D2D2D2D */
}