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  • set device info

    From mutazilah@gmail.com@21:1/5 to All on Sat Jul 29 23:55:37 2023
    Hi.

    I am getting this:

    fdtest


    The shell is about to be terminated, though, this is
    forbidden (usually by enabling the "/P" option).
    You must reboot the system or, if this shell runs in
    a multitasking environment, terminate this process/task manually.

    when I run this:

    C:\devel\pdos\pdpclib>type fdtest.asm
    .model small

    .stack 1000h

    .code

    top:

    mov ah, 044h
    mov al, 01h
    mov bx, 0
    ;mov dx, 081h
    mov dx, 0h

    int 021h

    mov ah, 04ch
    int 021h

    end top


    under Freedos 1.3.

    I don't get that problem on a Win 95 command prompt.

    Using 1 or 81h (for dx) gives the same result.

    The code seems to be conforming to this:

    http://www.ctyme.com/intr/rb-2821.htm
    http://www.ctyme.com/intr/rb-2820.htm

    Note that the original real code does a get device
    info first, and has a device information word of 0,
    but I may have stuffed that test up.

    Is my code correct, and thus, does some component
    of Freedos (or some other part of my system) have a bug?

    Compilation is as below.

    Thanks. Paul.



    C:\devel\pdos\pdpclib>wasm fdtest.asm
    Open Watcom Assembler Version 1.6
    Portions Copyright (c) 1992-2002 Sybase, Inc. All Rights Reserved.
    Source code is available under the Sybase Open Watcom Public License.
    See http://www.openwatcom.org/ for details.
    fdtest.asm: 20 lines, 0 warnings, 0 errors

    C:\devel\pdos\pdpclib>wcl fdtest.obj
    Open Watcom C/C++16 Compile and Link Utility Version 1.6
    Portions Copyright (c) 1988-2002 Sybase, Inc. All Rights Reserved.
    Source code is available under the Sybase Open Watcom Public License.
    See http://www.openwatcom.org/ for details.
    wlink @__wcl__.lnk
    Open Watcom Linker Version 1.6
    Portions Copyright (c) 1985-2002 Sybase, Inc. All Rights Reserved.
    Source code is available under the Sybase Open Watcom Public License.
    See http://www.openwatcom.org/ for details.
    loading object files
    creating a DOS executable

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From JJ@21:1/5 to muta...@gmail.com on Mon Jul 31 13:45:16 2023
    On Sat, 29 Jul 2023 23:55:37 -0700 (PDT), muta...@gmail.com wrote:
    Hi.

    I am getting this:

    fdtest

    The shell is about to be terminated, though, this is
    forbidden (usually by enabling the "/P" option).
    You must reboot the system or, if this shell runs in
    a multitasking environment, terminate this process/task manually.

    when I run this:

    C:\devel\pdos\pdpclib>type fdtest.asm
    .model small

    .stack 1000h

    .code

    top:

    mov ah, 044h
    mov al, 01h
    mov bx, 0
    ;mov dx, 081h
    mov dx, 0h

    int 021h

    mov ah, 04ch
    int 021h

    end top

    under Freedos 1.3.

    I don't get that problem on a Win 95 command prompt.

    Using 1 or 81h (for dx) gives the same result.

    The code seems to be conforming to this:

    http://www.ctyme.com/intr/rb-2821.htm
    http://www.ctyme.com/intr/rb-2820.htm

    Note that the original real code does a get device
    info first, and has a device information word of 0,
    but I may have stuffed that test up.

    Is my code correct, and thus, does some component
    of Freedos (or some other part of my system) have a bug?

    Compilation is as below.
    [snip]

    With the same code, the only difference is the OS. So obviously the cause is
    in the OS, and not the code. Either the command interpreter, or the OS
    kernel itself.

    FYI, no other DOS OS is trully compatible with MS-DOS - including it's
    quirks. PC-DOS is excluded, since it's just a rebranded MS-DOS.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)