• Re: DOS 4.0

    From JJ@21:1/5 to Paul Edwards on Wed Feb 28 02:29:55 2024
    On Tue, 27 Feb 2024 06:12:29 +0800, Paul Edwards wrote:
    I see some documentation for DOS 4.0 here:

    https://pcdosretro.github.io/multitaskingmsdos4.htm

    It says NE executables don't have a PSP.

    Is there another way of retrieving:

    1. The command line (I believe this would have predated
    the use of CMDLINE).

    2. The environment pointer.

    Thanks. Paul.

    OS/2 v1.0's SDK might shed some light. Assuming that it's available
    somewhere.

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  • From JJ@21:1/5 to Paul Edwards on Wed Feb 28 13:52:14 2024
    On Wed, 28 Feb 2024 12:00:44 +0800, Paul Edwards wrote:
    On 28/02/24 03:29, JJ wrote:
    On Tue, 27 Feb 2024 06:12:29 +0800, Paul Edwards wrote:
    I see some documentation for DOS 4.0 here:

    https://pcdosretro.github.io/multitaskingmsdos4.htm

    It says NE executables don't have a PSP.

    Is there another way of retrieving:

    1. The command line (I believe this would have predated
    the use of CMDLINE).

    2. The environment pointer.

    Thanks. Paul.

    OS/2 v1.0's SDK might shed some light. Assuming that it's available
    somewhere.

    What relevance is OS/2 v1.0 to MSDOS?

    Thanks. Paul.

    It's relevant to Multitasking MS-DOS. Not MS-DOS.

    Multitasking MS-DOS and MS-DOS are architecturely quite different, and quite incompatible with MS-DOS.

    https://betawiki.net/wiki/Multitasking_MS-DOS_4

    PS) the above article describe the subject much more in-depth than
    Wikipedia.

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