#include <stdio.h>
#include <conio.h>
#include <dos.h>
int main(void)
{
unsigned char low, high;
unsigned int const_1, const_2, rez;
int i;
clrscr();
outportb(0x43,0x80);
outportb(0x42,0xFF);
outportb(0x42,0xFF);
const_1 = ((unsigned int)high<<8)|low;
for (i = 0; i <= 10*4; i++) printf("%5d",i);
outportb(0x43,0x80);
low = inportb(0x42);
high = inportb(0x42);
const_2 = ((unsigned int)high<<8)|low;
rez = const_1 - const_2;
printf("\n CLK= %u",rez);
printf("\n время %f mksek",rez*0.84/1000);
getch();
return 0;
} |
