# Command: stackshigh

      STACKSHIGH adds stacks to handle hardware interrupts.
      STACKSHIGH is a CONFIG.SYS / FDCONFIG.SYS command.

## Syntax:

      stackshigh=nn,mmm

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## Options:

      nn   The number of stacks in the range 8-64 and 0.
      mmm  The size of each stack, in bytes, in the range 32-512.

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## Comments:

      This command is not needed on standard installations.
      STACKSHIGH changes number and size of hardware interrupt stacks available
      nn is number of different stacks and mmm is size in bytes of each one.
      In some cases you can use "stacks=0,0" to use only standard stacks
      instead of letting DOS allocate extra stacks for hardware interrupts.
      STACKSHIGH is like STACKS, except it attempts to load into high
      memory first (failing that it should load in conventional memory).
      Note: The order you load devices may have a large impact on amount
      of free memory available. In general try to load large (in memory
      usage) programs into high memory first.
      Important: You should have a high memory manager such as HIMEM,
      HIMEMX or JEMMEX installed (prior device=himem.exe or device=himemx.exe
      in CONFIG.SYS / FDCONFIG.SYS) before using this option.
      STACKSHIGH is a command internal to kernel.sys and needs no other file
      in order to work.

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## Examples:

      IN CONFIG.SYS / FDCONFIG.SYS:
        stackshigh=16,256

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## See also:

      config.sys
      fdconfig.sys
      fdxms
      fdxms286
      himem
      himemx
      jemmex
      stacks

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## File:

      Please read this command's lsm file also.
      You will find the updated version (internet) here and
      the version described in this manual page here.
      The lsm file contains information about the name of the programmer,
      the download site, and some other command related information.

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      Copyright © 1998 Jim Hall, updated 2008 by W. Spiegl.

      This file is derived from the FreeDOS Spec Command HOWTO.
      See the file H2Cpying for copying conditions.