Le informazioni di 512 byte per riempire spazio del settore difettoso

 
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/*Le informazioni di 512 byte per riempire spazio del settore difettoso*/

/// Ho usato 512 zeri per riempire lo spazio di 512 byte \\\

static char dbuf2[512] =
"00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000" "00000000000000000000000000000000";

FILE *tt;
clrscr();
printf("\n Introdurre il nome della lima con il percorso per memorizzare temporaneamente i dati\n");
gets(filename);
if((tt=fopen(filename,"wb"))==NULL)
{
printf("Non ha potuto generare la lima, non premono alcuna chiave PER RIMUOVERE");
getch();
exit(0);
}
printf("\n Sistema d'inizializzazione del dischetto…\n");

/// Inizializzare il sistema di disc \\\

for(i=0; i<3; i++)
{
regs.h.ah = 0x00; /* Ripristinare il sistema di disc */
regs.h.dl = 0x00; /* Dischetto a:*/

int86(0x13, &regs, &regs);
}

for(track=0;track<=79;track++)
{
for(head=0;head<=1;head++)
{
for(sector=1;sector<=18;sector++)
{
dinfo.drive = 0; /* numero di azionamento per A: */
dinfo.head = head; /* numero capo del disc */
dinfo.track = track; /* numero della pista */
dinfo.sector = sector; /* numero del settore */
dinfo.nsectors = 1; /* conteggio di settore */
dinfo.buffer = dbuf; /* amplificatore di dati */

result = _bios_disk(_DISK_READ, &dinfo);

if ((result & 0xff00) == 0)
{
for(i=0;i<512;i++)
fprintf(tt,"%c",dbuf[i] & 0xff);
}

else
{
printf("Non può leggere l'azionamento A, condizione =
0x%02x\t%d\t%d\t%d\n", result, head, track, sector);

/* Se il settore non è leggibile, occupare 512 byte da dbuf2 */

fwrite(dbuf2,512,1,tt);
}

printf("Pista della lettura= %d Head= %d Sector= %d\n",
track, head, sector);
}
}
}
}

Sample Chapters from book DATA RECOVERY WITH AND WITHOUT PROGRAMMING by Author Tarun Tyagi, translated using machine translation. See original English contents on Data recovery book pages.

Data Recovery with & without Programming


Publishers of the Book
Number of Pages
ISBN
Price of the Book


BPB Publications, New Delhi, India
540
81-7656-922-4
$69.00 (Including Shipping Charges, Cost of Book and Other expenses, Free Source Code CD included with the Book)





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