如何编程实现对软盘的格式化？听说在用中断13H时，需要向磁头写一个数据表才能实现格式化。如果有人知道，请把详细方法告诉我，谢谢！

/*---------------------+
   |     FAT 12 or 16     |
   +---------------------*/
   else
   {
      bpb->Comm.nBootSect  = 1;                          /** FAT 玡合跋计 **/
      bpb->FAT1x.nFdbRoot  = 512;                            /** ヘ魁兜计 **/
      bpb->FAT1x.firstHD   = 0x80;                       /** 材场祑盒腹 **/
      bpb->FAT1x.signature = 0x29;                               /** 疭紉絏 **/
      bpb->FAT1x.serNoLow  = random(0xffff) + 1;
      bpb->FAT1x.serNoHigh = random(0xffff) + 1;
      cpymem(bpb->FAT1x.label, "NO NAME    ", 11);                /** Label **/
      cpymem(bpb->FAT1x.fsType, "FAT16   ", 8);                /** 郎╰参 **/
      if ( ptr->old_id == 1 )
      {
         bpb->FAT1x.fsType[4] = '2';
         bpb->Comm.sectPerClust = 8;                              /** FAT12 **/
      }
      else
      {
         /*----------------------------------+
         |       – Cluster 合跋计       |
         +----------------------------------*/
         bpb->Comm.sectPerClust = ( Size FAT1x.bootStrap;              /** 币笆祘Α絏熬簿竚 **/
   } /* end if */

   codePTR = (byte FAR *)BOOT_HEAD;
   while ( codePTR != (byte FAR *)BOOT_END )             /** 恶币笆祘Α絏 **/
      *bootStrap++ = *codePTR++;

   /*--------------------------------------+
   |  Modify SI context at BootSect.asm    |
   |  and fill JUMP instruction to buffer  |
   +--------------------------------------*/
   bpb->Comm.NOP = 0x90;                                       /** NOP  **/
   bpb->Comm.jumpCode = 0xeb;
   if ( ptr->old_id == 0xb || ptr->old_id == 0xc )
   {                                        /** JMP  58h 单 BPB  **/
      bpb->Comm.jumpOffset = 512 - sizeof(bpb->FAT32.bootStrap) - 4;
      bpb->FAT32.bootStrap[ (word)BOOT_DATA - (word)BOOT_HEAD + 1 ] += 0x5a;
   }
   else
   {                                        /** JMP  3Ch 单 BPB  **/
      bpb->Comm.jumpOffset = 512 - sizeof(bpb->FAT1x.bootStrap) - 4;
      bpb->FAT1x.bootStrap[ (word)BOOT_DATA - (word)BOOT_HEAD + 1 ] += 0x3e;
   }
} /* end CreateBPB */

     
/*============================= 秈 ︽  Α て ==============================*/
sword Format (PARTN *ptr, void *bootSect)
{
   dword   Sys_Sector, NowSect, Start, Total;
   byte    Temp[512];
   FS_SECT *fsSect;
   byte    isFAT32;
   DOSBPB  *bpb;
   sword   ratio, i;
                                
   bpb     = (DOSBPB *)bootSect;
   isFAT32 = ( (ptr->old_id == 0xb) || (ptr->old_id == 0xc) );

   NowSect = GetStart(ptr);                                /** 眔币﹍合跋 **/
   Total   = get_nsector(ptr);                             /** だ澄合跋羆计 **/

   if ( isFAT32 )                              /** 璸衡郎╰参ノぶ合跋 **/
      Sys_Sector = bpb->FAT32.sectPerFAT * bpb->Comm.nFAT +
                   bpb->Comm.nBootSect + bpb->Comm.sectPerClust;
   else
      Sys_Sector = bpb->FAT1x.sectPerFAT * bpb->Comm.nFAT +
                   bpb->Comm.nBootSect + (bpb->FAT1x.nFdbRoot >> 4);

   #if ( DISPLAY == CHINESE )
      show_msg("タ  秈 ︽  Α て  Ч Θ  ");
   #else 
      show_msg("It's formatting, completed  ");
   #endif

   /*-----------------------------*/
   /*      ╰ 参 合 跋 恶       */
   /*-----------------------------*/
   for ( Start = 0 ; Start title          = 0x41615252L;
      fsSect->signature      = 0x61417272L;
      fsSect->next_free_clus = 0x00000002L;
      fsSect->magicNum       = 0xaa55;

      /*----------------------------------------------------+
      |            FAT32 郎  ╰ 参 合 跋 戈 癟            |
      +----------------------------------------------------*/
      fsSect->free_clust_cnt  = (Total - Sys_Sector) /
                                (dword)bpb->Comm.sectPerClust;

      if ( lba_WriteWDK(NowSect + 1, 1, fsSect) ||
           lba_WriteWDK(NowSect + bpb->FAT32.bakBootSect + 1, 1, fsSect) )
      {
          return( -1 );
      }

      memset(Temp, 0, 512);                   /** ミ FAT ㄏノぇ既丁 **/
      *(dword *)&Temp[4] = 0x0fffffffL;
      *(dword *)&Temp[8] = 0x0fffffffL;
      Temp[3]  = 0x0f;                                  /** 砞﹚ FAT 繷 **/
   }
   else
   {
      if ( ptr->old_id != 1 )                          /** 砞﹚ FAT 繷 **/
         Temp[3] = 0xff;
   }
                      
   *(word *)&Temp[1] = 0xffff;                          /** 砞﹚ FAT 繷 **/
   Temp[0] = bpb->Comm.m_descriptor;                       /** 砞称磞瓃じ **/

   /*-----------------------------+
   |       ミ ㄢ  FAT       |
   +-----------------------------*/
   NowSect += bpb->Comm.nBootSect;
   for ( i = 0 ; i Comm.nFAT ; i++ )
   {
      if ( lba_WriteWDK(NowSect, 1, Temp) )
         return( -1 );

      /*-------------- 璸 衡 材   FAT  ぇ 熬 簿 秖 ---------------*/
      NowSect += ((isFAT32) ? bpb->FAT32.sectPerFAT : bpb->FAT1x.sectPerFAT);
   }

   return( 0 );
} /* end Format */