v4.0/src/INC/SYSVAR.INC

   1 ;       SCCSID = @(#)sysvar.asm 1.1 85/04/10
   2 include         version.inc
   3
   4 SysInitVars STRUC
   5 SYSI_DPB            DD      ?           ; DPB chain
   6 SYSI_SFT            DD      ?           ; SFT chain
   7 SYSI_CLOCK          DD      ?           ; CLOCK device
   8 SYSI_CON            DD      ?           ; CON device
   9 SYSI_MAXSEC         DW      ?           ; maximum sector size
  10 SYSI_BUF            DD      ?           ; points to Hashinitvar
  11 SYSI_CDS            DD      ?           ; CDS list
  12 SYSI_FCB            DD      ?           ; FCB chain
  13 SYSI_Keep           DW      ?           ; keep count
  14 SYSI_NUMIO          DB      ?           ; Number of block devices
  15 SYSI_NCDS           DB      ?           ; number of CDS's
  16 SYSI_DEV            DD      ?           ; device list
  17 SYSI_ATTR           DW      ?           ; null device attribute word
  18 SYSI_STRAT          DW      ?           ; null device strategy entry point
  19 SYSI_INTER          DW      ?           ; null device interrupt entry point
  20 SYSI_NAME           DB   8 DUP(?)       ; null device name
  21 SYSI_SPLICE         DB      0           ; TRUE -> splicees being done
  22 SYSI_IBMDOS_SIZE    DW      ?           ; DOS size in paragraphs
  23 SYSI_IFS_DOSCALL@   DD      ?           ; IFS DOS service rountine entry
  24 SYSI_IFS            DD      ?           ; IFS header chain
  25 SYSI_BUFFERS        DW      ?,0         ; BUFFERS= values (m,n)
  26 SYSI_BOOT_DRIVE     DB      ?           ; boot drive A=1 B=2,..
  27 SYSI_DWMOVE         DB      0           ; 1 if 386 machine
  28 SYSI_EXT_MEM        DW      0           ; Extended memory size in KB.
  29 SysInitVars ENDS
  30
  31 ;This is added for more information exchage between DOS, BIOS.
  32 ;DOS will give the pointer to SysInitTable in ES:DI. - J.K. 5/29/86
  33 SysInitVars_Ext struc
  34 SYSI_InitVars           DD      0       ; Points to the above structure.
  35 SYSI_Country_Tab        DD      0       ; DOS_Country_cdpg_info
  36 SysInitVars_Ext ends
  37
  38 ;The SYSI_BUF of SysInitVars points to the follwong structure
  39 EMS_MAP_BUFF_SIZE      EQU      12      ; EMS map buffer size
  40
  41 Buffinfo    STRUC
  42 Hash_ptr         DD      ?                   ; pointer to Hash table
  43 Hash_count       DW      ?                   ; number of Hash entries
  44 Cache_ptr        DD      ?                   ; pointer to secondary cache
  45 Cache_count      DW      0                   ; number of secondary cache entries
  46
  47 IF      BUFFERFLAG
  48
  49 EMS_SAFE_FLAG   DB      1
  50 EMS_LAST_PAGE   DW      0, 0
  51 EMS_FIRST_PAGE  DW      0, 0
  52 EMS_NPA640      DW      0
  53
  54 ENDIF
  55
  56 EMS_mode         DB      -1                  ; no EMS = -1
  57 EMS_handle       DW      ?                   ; EMS handle for buffers
  58 EMS_PageFrame_Number    DW   -1              ; EMS page frame number
  59 EMS_Seg_Cnt      DW      1                   ; EMS segment count
  60 EMS_Page_Frame   DW      -1                  ; EMS page frame segment address
  61 EMS_reserved     DW      0                   ; EMS segment count
  62
  63 IF      BUFFERFLAG
  64 EMS_Map_Buff     DB      0  ; map buffer
  65 ELSE
  66 EMS_Map_Buff    DB      12 dup(0)
  67 ENDIF
  68
  69 Buffinfo    ENDS
  70
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  77 \1a