#include <stdio.h>
#include <bios.h>

void main(void)
 {
   char buffer[8192];

   // Try reading head 1, track 1, sector 1
   if (biosdisk(2, 0, 1, 1, 1, 1, buffer))
     printf("Error accessing drive\n");
   else
     printf("Drive ready\n");
 }