Command: himemx

  HIMEMX is the extended memory host for DOS (coordinates the usage of
  XMS and HMA). HIMEMX has to be loaded in CONFIG.SYS / FDCONFIG.SYS.
  Please place DEVICE=HIMEMX.EXE [options] before any driver using XMS.

Syntax:

  HIMEMX [/MAX=####] [/METHOD:xxx] [/HMAMIN=n] [/NUMHANDLES=m]
         [/VERBOSE] [/NOABOVE16] [/X] [/XMAX32]

Options:

  /MAX=#####       Limit memory controlled by XMM to ##### KB.
  /METHOD:xxx      Specifies the method to be used for A20 handling.
                   Possible values for xxx:
                   ALWAYSON    Assume that A20 line is permanently ON
                   BIOS        Use BIOS to toggle the A20 line
                   FAST        Use port 92h, bypass INT 15h test
                   PS2         Use port 92h, bypass PS/2 test
                   KBC         Use the keyboard controller
                   PORT92      Use port 92h always
  /HMAMIN=n        Specifies minimum number of KBs of HMA that a program
                   must request to gain access to the HMA (def: 0 KB).
  /NUMHANDLES=m    Number of XMS handles available (default: 48, min: 8,
                   max:128).
  /VERBOSE         Gives extra information.
  /NOABOVE16       Do not use INT 15h function E801h to detect > 64 MB.
  /X               Do not use INT 15h function E820h to detect > 64 MB.
  /X2MAX32         Limit XMS 2.0 free/avail. memory report to 32 MB-1 KB.
  /?               Shows the help.

Comments:

  HIMEMX requires a 80386+ CPU. JEMM386 can be loaded after this
  driver. Load HIMEMX as DEVICE=HIMEMX.EXE in CONFIG.SYS / FDCONFIG.SYS
  (although it is an ".exe"-file!
    For more informations see:
    https://github.com/Baron-von-Riedesel/HimemX/blob/master/Readme.txt
  OR:
    https://gitlab.com/FreeDOS/base/himemx/-/tree/master/DOC/HIMEMX
  OR:
    C:\FREEDOS\DOC\HIMEMX\readme.txt (can be installed with FD live CD).

Examples:

  IN CONFIG.SYS / FDCONFIG.SYS:
    files=20
    buffers=30
    lastdrive=Z
    break=off
    DOS=high,umb
    device=C:\FREEDOS\BIN\himemx.exe
    device=C:\FREEDOS\BIN\jemm386.exe NOEMS
    shellhigh=C:\FREEDOS\BIN\command.com C:\FREEDOS\BIN /E:1024
    /p:C:\fdauto.bat

Command: himemx

Syntax:

Options:

Comments:

Examples:

See also: