DOS ain't dead

PDOS-generic (Announce)

posted by kerravon , Ligao, Free World North, 02.11.2021, 21:29

> > But if you used say Freedos you could change that
> > behavior by changing the Freedos source code?
>
> nope. you won't even find a single line dealing with hardware stuff.
>
> not interrupt vectors, not I/O addresses.
>
> neither in the kernel nor anywhere else.
>
> ANYDOS relies on the BIOS to do these things. entirely.

I see. Note that PDOS/386 does that too.

But is there any reason why Freedos can't change
the PIC to put the interrupts elsewhere and then
copy the existing interrupt vectors to that new
location? Or is the problem that the BIOS hardcodes
the INT 0Dh?

> otoh applications are allowed (or in the case of serial communications
> required) to make these changes. and have to check if this is compatible
> with all the other - more or less - interesting stuff running on the
> machine at the same time, like network adapters, industrial interface
> cards, etc.

If applications can do it, why not the OS? Also,
why did you say serial communications are required
to make changes? They can call INT 14h, can't they?

> good luck with defining your own rules to be followed by everybody else.

Depending on the use case, it only has to be good
enough to work on ecm's machine. I don't know what
he is running.

BFN. Paul.

Complete thread:

• PDOS-generic - kerravon, 30.10.2021, 10:02 (Announce)
  • PDOS-generic - kerravon, 31.10.2021, 06:40
    • PDOS-generic - kerravon, 31.10.2021, 09:43
      • PDOS-generic - ecm, 31.10.2021, 22:11
        • PDOS-generic - kerravon, 31.10.2021, 22:29
          • PDOS-generic - ecm, 31.10.2021, 22:32
            • PDOS-generic - kerravon, 31.10.2021, 22:46
              • PDOS-generic - tom, 02.11.2021, 18:25
                • PDOS-generic - kerravon, 02.11.2021, 21:29
                  • PDOS-generic - ecm, 03.11.2021, 08:54
                    • PDOS-generic - kerravon, 03.11.2021, 19:48
      • PDOS-generic - marcov, 02.11.2021, 19:42
        • PDOS-generic - kerravon, 02.11.2021, 22:00
          • PDOS-generic - marcov, 03.11.2021, 16:43
            • PDOS-generic - kerravon, 03.11.2021, 20:06
              • PDOS-generic - marcov, 13.11.2021, 15:49
                • PDOS-generic - kerravon, 14.11.2021, 09:01
            • PDOS-generic - tom, 04.11.2021, 15:28
              • PDOS-generic - marcov, 08.11.2021, 10:21
                • PDOS-generic - tkchia, 08.11.2021, 16:24
                  • PDOS-generic - DosWorld, 08.11.2021, 17:17
                  • PDOS-generic - marcov, 13.11.2021, 16:03
                    • PDOS-generic - tkchia, 13.11.2021, 17:42
                • PDOS-generic - kerravon, 12.11.2021, 01:50
                  • PDOS-generic - kerravon, 12.11.2021, 11:10
                  • PDOS-generic - Ringding, 12.11.2021, 13:39
                    • PDOS-generic - kerravon, 13.11.2021, 02:26
                      • PDOS-generic - Ringding, 13.11.2021, 09:55
                        • PDOS-generic - Ringding, 13.11.2021, 10:51