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Disk diagnostics in DOS, compiled with Turbo C

#include <stdio.h> #include <dos.h> #include <stdlib.h> #include <bios.h> int main(void) { int status; int command = 19; int drive = 0; int head = 0; int track = 1; int sector = 1; int nosectors = 1; char buffer[512]; clrscr(); status = biosdisk(command,drive,head,track,sector,nosectors,buffer); if(status == 0) printf("Diagnostics.\n"); else printf("Unable to run diagnostics.\n"); return 0; }