stacks(CMD) — OpenDesktop 3.0.0


 stacks(CMD)                     19 June 1992                     stacks(CMD)


 Name

    stacks - support the dynamic use of data stacks to handle hardware
    interrupts

 Syntax


    stacks=n,s


 Parameters


    n   Specifies the number of stacks.  Valid values for n are 0 and numbers
        in the range 8 through 64.

    s   Specifies the size (in bytes) of each stack.  Valid values for s are
        0 and numbers in the range 32 through 512.


 Notes


    Default settings

    The default settings for the stack command are as follows:

    _________________________________________________________________________
    Computer                                    Stacks
    _________________________________________________________________________
    IBM PC, IBM PC/XT, IBM PC-Portable          0,0
    Other                                       9,128


    Special cases for stack allocation

    Upon receiving a hardware interrupt, MS-DOS allocates one stack from the
    specified number of stacks.  When you specify 0 for the n and s values,
    MS-DOS allocates no stacks.  If the values are 0, each running program
    must have enough stack space to accommodate the computer's hardware
    interrupt drivers.  Many computers operate correctly, saving some memory
    for programs, with n and s values of 0. If, however, your computer
    becomes unstable when you set these values to 0, return to the default
    values.

 Example

    To allocate 8 stacks of 512 bytes each for hardware-interrupt handling,
    add the following command to your CONFIG.SYS file:

       stacks=8,512
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