TC2.0 下定时器使用 DOS
大哥们，小弟想在TC2.0下用定时器，不知道怎么操作？
有前辈写的一下代码，请高手帮忙看下是怎么实现的

#include "main.h"
#include "UserType.h"
#include <dos.h>

void interrupt (*oldproc)();

void main()
{

    oldproc=getvect(0x1c);
    disable();
    setvect(0x1c,newproc);
    enable();
    while (1);

}

void interrupt newproc()
{
    printf("111");
}

TC 定时器 C语言 Dos
[解决办法]

/***NOTE:
    This is an interrupt service routine.  You can NOT compile this
    program with Test Stack Overflow turned on and get an executable
    file which will operate correctly. */

#include <stdio.h>
#include <dos.h>
#include <conio.h>

#define INTR 0X1C    /* The clock tick interrupt */

#ifdef __cplusplus
    #define __CPPARGS ...
#else
    #define __CPPARGS
#endif

void interrupt ( *oldhandler)(__CPPARGS);

int count=0;

void interrupt handler(__CPPARGS)
{
/* increase the global counter */
   count++;

/* call the old routine */
   oldhandler();
}

int main(void)
{
/* save the old interrupt vector */
   oldhandler = getvect(INTR);

/* install the new interrupt handler */
   setvect(INTR, handler);

/* loop until the counter exceeds 20 */
   while (count < 20)
      printf("count is %d\n",count);

/* reset the old interrupt handler */
   setvect(INTR, oldhandler);

   return 0;
}