v4.0/src/INC/BOOTFORM.INC

   1         %OUT BOOTFORM.INC...
   2 ;****************************************************************************
   3 ;AN000; - Structure of the Extended IBMBOOT record for DOS -. J.K.
   4 ;AN001; - D304 Include PHYDRV, CURHD to the header structure     11/09/87 J.K.
   5 ;****************************************************************************
   6
   7 BOOT_SIZE                EQU     512
   8 EXT_BOOT_SIGNATURE       EQU     41             ;Extended boot signature
   9 ;
  10 EXT_BPB_INFO            STRUC
  11 EBPB_BYTESPERSECTOR      DW      ?
  12 EBPB_SECTORSPERCLUSTER   DB      ?
  13 EBPB_RESERVEDSECTORS     DW      ?
  14 EBPB_NUMBEROFFATS        DB      ?
  15 EBPB_ROOTENTRIES         DW      ?
  16 EBPB_TOTALSECTORS        DW      ?
  17 EBPB_MEDIADESCRIPTOR     DB      ?
  18 EBPB_SECTORSPERFAT       DW      ?
  19 EBPB_SECTORSPERTRACK     DW      ?
  20 EBPB_HEADS               DW      ?
  21 EBPB_HIDDENSECTOR        DD      ?
  22 EBPB_BIGTOTALSECTORS     DD      ?
  23 EXT_BPB_INFO            ENDS
  24 ;
  25 ;AN001; EXT_PHYDRV, EXT_CURHD included in the header for OS2.
  26 EXT_IBMBOOT_HEADER      STRUC
  27 EXT_BOOT_JUMP           DB      3 DUP (?)
  28 EXT_BOOT_OEM            DB      8 DUP (?)
  29 EXT_BOOT_BPB            DB      type EXT_BPB_INFO dup (?)
  30 EXT_PHYDRV              DB      80h
  31 EXT_CURHD               DB      0
  32 EXT_BOOT_SIG            DB      EXT_BOOT_SIGNATURE
  33 EXT_BOOT_SERIAL         DD      ?
  34 EXT_BOOT_VOL_LABEL      DB      11 DUP (?)
  35 EXT_SYSTEM_ID           DB      8  DUP (?)
  36 EXT_IBMBOOT_HEADER      ENDS
  37 ;
  38 BOOT_SIGNATURE  =     word ptr (BOOT_SIZE-2)
  39
  40 ;
  41 ;J.K. This is the number of sectors (of size 512 bytes) that will cover
  42 ;the size of IBMLOAD program.  IBMBOOT program has to at least read this
  43 ;many sectors, and these sectors should be the first cluster and consecutive.
  44 ;Make sure IBMBOOT program uses the same value as this.
  45 IBMLOADSIZE     equ     3       ;Number of sectors IBMBOOT program should read in.
  46
  47