Command: fdxms.sys

  FDXMS.SYS is an extended memory driver for FreeDOS.
  FDXMS.SYS is for 386+ computers. Fdxms286 is for 286 computers.
  FDXMS.SYS has to be loaded in CONFIG.SYS / FDCONFIG.SYS.
  FDXMS.SYS is out of date. You should use HIMEMX or JEMMEX instead.

Syntax:

  DEVICE=[drive][path]\fdxms.sys [options]
         drive  The drive letter, e.g. C:
         path   The directory, e.g. \example\

Options:

  NUMHANDLES=  Sets the number of XMS handles. Default is 32. Minimum
               is two (not much use of XMS without any handles!) and
               maximum is currently 1024. Each handle takes 5 bytes
               (FDXMS.SYS) or 9 bytes (FDXXMS.SYS).
  BIOS         Makes FDXMS always call the BIOS through INT15
               instead of using its own protected mode switching.
  PS           Changes to the particular A20 handling necessary on
               PS/2 machines.
  GEODE        Removes delays while changing the A20 line. Reported
               to help FDXMS to work on National Semiconductor's
               Geode GX1 processor.
  DELAY=       Number of calls to the delay routine after changing
               the A20 line. If you receive the error message "Unable
               to switch A20 address line", try setting it to a big
               value (say 4000) and see if it helps. Then fine tune
               it as you want as low a value as possible for speed.
               Default is 1. Maximum is 65535 and 0 maps to 65536.

Comments:

  FDXMS.SYS has to be loaded in CONFIG.SYS / FDCONFIG.SYS.

Examples:

  IN CONFIG.SYS / FDCONFIG.SYS:
    device=c:\fdos\fdxms.sys

Command: fdxms.sys

Syntax:

Options:

Comments:

Examples:

See also: