[temp t13] Reading sectors with Int 13h

[d-fence]

Hi,   I've made this code with DJGPP under real dos. It doesn't work !! It always show me the same bytes in the buffer, not the sectors that I asked for !   Could someone help me, please.   Thanx D-fence [EMAIL PROTECTED]   Here is the source :   #include <dos.h> #include <conio.h> #include <dpmi.h>   struct DAP {  unsigned char Packet_Size;  unsigned char Reserved;  unsigned char Numb_of_blcks_to_trsf;  unsigned char Reserved_1;  unsigned short Buffer_segment;  unsigned short Buffer_offset;  unsigned long long Starting_LBA; }test;   int readlba (long long lba_adress) {  int buffer_selector1,buffer_selector2;  int buffer_size;  short buffer_adress;  short dap_adress;  unsigned char buffer[16];  unsigned char buf[512];  unsigned short essai;  int i;  __dpmi_regs registres;  clrscr;  for (i=0;i<513;i++) buf[i]="X";  buffer_adress=__dpmi_allocate_dos_memory(32,&buffer_selector1);  dap_adress=__dpmi_allocate_dos_memory(1,&buffer_selector2);  test.Packet_Size=16;  test.Reserved=0;  test.Numb_of_blcks_to_trsf=1;  test.Reserved_1=0;  test.Buffer_segment=buffer_adress;  test.Buffer_offset=0;  test.Starting_LBA=lba_adress;  memmove (&buffer,&test,16);  dosmemput(buffer,16,dap_adress*16);  registres.x.ax=0x4200;  registres.x.dx=0x0080;  registres.x.ds=dap_adress;  registres.x.si=0;  __dpmi_int(0x13,&registres);  printf ("AX returned : %x\n",registres.x.ax);  dosmemget(buffer_adress*16,512,buf);  __dpmi_free_dos_memory(buffer_selector1);  __dpmi_free_dos_memory(buffer_selector2);  for  (i=0;i<512;i++)  {   printf ("%c",buf[i]);  } }   int main (void) {  long long i;  for (i=1000;i<1500;i++)  {  readlba(i);  } }