DOS ain't dead - 32-bit MSDOS

32-bit MSDOS (Announce)

posted by kerravon , Ligao, Free World North, 27.09.2021, 04:28

> Yes, in VM with a small disk with single partition probably everything
> works fine, I belive.. But out in the wild you can expect more oddities. I
> guess it may be similar problem like with FreeFdisk discused some months
> ago here - partitions starting at misaligned CHS values, as today on SSD
> many partition tools don't align to CHS but LBA, e.g. start 1st partition
> at 1MB... Just try your system on some real large partitioned HDD...

I want to stick with USB sticks until I can get
that working to my satisfaction. PDOS doesn't
yet have the necessary support tools to be a
standalone system. It still relies on fdisk and
format from Freedos, but I realized that I should
be able to write tools to manipulate a VHD image
instead.

I assume that CHS and LBA are mutually exclusive?
Or can you write code, including a boot sector, that
gracefully detects whether you are on an LBA-capable
system and switch to LBA?

I really need these exact switching rules to be
encapsulated in public domain source code that is
part of PDOS.

BFN. Paul.

Post reply

Complete thread:

32-bit MSDOS - kerravon, 26.06.2021, 15:52 (Announce)
- 32-bit MSDOS - tom, 27.06.2021, 13:23
  - 32-bit MSDOS - kerravon, 27.06.2021, 13:46
    - 32-bit MSDOS - tom, 27.06.2021, 14:14
      - 32-bit MSDOS - kerravon, 27.06.2021, 14:58
        32-bit MSDOS - Japheth, 27.06.2021, 16:09
        32-bit MSDOS - kerravon, 27.06.2021, 17:46
        32-bit MSDOS - Japheth, 28.06.2021, 05:54
        32-bit MSDOS - kerravon, 28.06.2021, 07:15
        32-bit MSDOS - RayeR, 28.06.2021, 13:43
        32-bit MSDOS - kerravon, 28.06.2021, 15:04
        32-bit MSDOS - tkchia, 28.06.2021, 19:00
        32-bit MSDOS - kerravon, 29.06.2021, 00:34
        32-bit MSDOS - kerravon, 29.06.2021, 01:52
        32-bit MSDOS - marcov, 30.06.2021, 15:11
        32-bit MSDOS - kerravon, 30.06.2021, 22:32
        32-bit MSDOS - marcov, 30.06.2021, 22:42
        32-bit MSDOS - kerravon, 30.06.2021, 22:57
        32-bit MSDOS - marcov, 01.07.2021, 09:45
        32-bit MSDOS - kerravon, 01.07.2021, 13:39
        32-bit MSDOS - marcov, 01.07.2021, 15:54
        32-bit MSDOS - kerravon, 02.07.2021, 00:59
        32-bit MSDOS - kerravon, 02.07.2021, 13:31
        32-bit MSDOS - marcov, 03.07.2021, 19:28
        32-bit MSDOS - kerravon, 04.07.2021, 01:55
        32-bit MSDOS - marcov, 04.07.2021, 22:29
        32-bit MSDOS - kerravon, 05.07.2021, 00:31
        32-bit MSDOS - marcov, 05.07.2021, 10:05
        32-bit MSDOS - kerravon, 05.07.2021, 10:28
        32-bit MSDOS - mceric, 05.07.2021, 12:40
        32-bit MSDOS - kerravon, 05.07.2021, 14:00
        32-bit MSDOS - mceric, 05.07.2021, 16:27
        32-bit MSDOS - kerravon, 05.07.2021, 23:55
        32-bit MSDOS - tom, 06.07.2021, 09:51
        32-bit MSDOS - kerravon, 06.07.2021, 11:06
        32-bit MSDOS - kerravon, 07.07.2021, 09:31
        32-bit MSDOS - marcov, 02.07.2021, 14:05
        32-bit MSDOS - kerravon, 02.07.2021, 15:19
        32-bit MSDOS - marcov, 02.07.2021, 16:02
        32-bit MSDOS - mceric, 02.07.2021, 17:15
        32-bit MSDOS - kerravon, 02.07.2021, 17:43
        32-bit MSDOS - kerravon, 03.07.2021, 05:14
        32-bit MSDOS - mceric, 03.07.2021, 13:03
        32-bit MSDOS - kerravon, 03.07.2021, 13:16
        32-bit MSDOS - marcov, 03.07.2021, 15:35
        32-bit MSDOS - kerravon, 03.07.2021, 15:45
        32-bit MSDOS - marcov, 03.07.2021, 19:06
        32-bit MSDOS - kerravon, 04.07.2021, 02:00
        32-bit MSDOS - kerravon, 04.07.2021, 02:50
        32-bit MSDOS - marcov, 04.07.2021, 22:59
        32-bit MSDOS - kerravon, 05.07.2021, 00:51
        32-bit MSDOS - marcov, 05.07.2021, 10:00
        32-bit MSDOS - kerravon, 05.07.2021, 10:23
        32-bit MSDOS - marcov, 05.07.2021, 13:19
        32-bit MSDOS - kerravon, 05.07.2021, 13:48
        32-bit MSDOS - kerravon, 04.07.2021, 03:10
        32-bit MSDOS - kerravon, 04.07.2021, 03:15
        32-bit MSDOS - kerravon, 04.07.2021, 05:24
        32-bit MSDOS - kerravon, 04.07.2021, 05:32
        32-bit MSDOS - marcov, 04.07.2021, 23:08
        32-bit MSDOS - kerravon, 05.07.2021, 01:00
        32-bit MSDOS - kerravon, 05.07.2021, 04:10
        32-bit MSDOS - tkchia, 05.07.2021, 15:09
        32-bit MSDOS - kerravon, 05.07.2021, 15:48
        32-bit MSDOS - kerravon, 04.07.2021, 05:43
        32-bit MSDOS - kerravon, 04.07.2021, 07:06
        32-bit MSDOS - kerravon, 04.07.2021, 07:35
        32-bit MSDOS - tkchia, 04.07.2021, 09:16
        32-bit MSDOS - kerravon, 04.07.2021, 10:13
        32-bit MSDOS - tkchia, 04.07.2021, 11:03
        32-bit MSDOS - kerravon, 04.07.2021, 11:14
        32-bit MSDOS - marcov, 04.07.2021, 22:57
        32-bit MSDOS - kerravon, 05.07.2021, 00:48
        32-bit MSDOS - marcov, 04.07.2021, 22:37
        32-bit MSDOS - kerravon, 05.07.2021, 00:33
        32-bit MSDOS - marcov, 03.07.2021, 14:30
        32-bit MSDOS - marcov, 03.07.2021, 14:47
        32-bit MSDOS - kerravon, 03.07.2021, 15:39
        32-bit MSDOS - marcov, 03.07.2021, 16:12
        32-bit MSDOS - kerravon, 03.07.2021, 16:23
        32-bit MSDOS - kerravon, 02.07.2021, 17:40
        32-bit MSDOS - marcov, 03.07.2021, 14:02
        32-bit MSDOS - kerravon, 03.07.2021, 14:41
        32-bit MSDOS - marcov, 03.07.2021, 15:54
        32-bit MSDOS - kerravon, 03.07.2021, 16:16
        user32.dll - marcov, 03.07.2021, 19:48
        user32.dll - kerravon, 04.07.2021, 02:20
        user32.dll - marcov, 04.07.2021, 23:17
        user32.dll - kerravon, 05.07.2021, 01:07
        32-bit MSDOS - tkchia, 30.06.2021, 19:04
        32-bit MSDOS - kerravon, 30.06.2021, 22:42
        32-bit MSDOS - marcov, 30.06.2021, 22:47
        32-bit MSDOS - kerravon, 30.06.2021, 23:14
        32-bit MSDOS - tom, 28.06.2021, 20:47
        32-bit MSDOS - kerravon, 29.06.2021, 00:21
        32-bit MSDOS - tkchia, 28.06.2021, 19:09
        32-bit MSDOS - kerravon, 29.06.2021, 05:16
        32-bit MSDOS - Japheth, 29.06.2021, 05:40
        32-bit MSDOS - kerravon, 29.06.2021, 07:14
        32-bit Public Domain DOS - tom, 30.06.2021, 22:19
        32-bit MSDOS - kerravon, 27.06.2021, 18:00
        32-bit MSDOS - kerravon, 27.06.2021, 18:31
        32-bit MSDOS - kerravon, 27.06.2021, 18:47
        32-bit MSDOS - Japheth, 27.06.2021, 20:40
        32-bit MSDOS - kerravon, 27.06.2021, 20:57
        32-bit MSDOS - kerravon, 27.06.2021, 22:12
        32-bit MSDOS - bocke, 14.09.2021, 11:33
    - YAOIS - Yet Another Irrelevant Operating System - tom, 27.06.2021, 20:03
      - 32-bit MSDOS - kerravon, 27.06.2021, 20:18
      - YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 20:23
      - YAOIS - Yet Another Irrelevant Operating System - mceric, 27.06.2021, 20:28
        YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 20:47
        YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 20:51
        YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 20:53
        YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 20:54
        YAOIS - Yet Another Irrelevant Operating System - rr, 27.06.2021, 21:21
      - YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 21:30
        YAOIS - Yet Another Irrelevant Operating System - kerravon, 27.06.2021, 21:59
    - a.out support in dos - DosWorld, 04.07.2021, 11:22
      - a.out support in dos - kerravon, 04.07.2021, 12:01
      - a.out support in dos - marcov, 04.07.2021, 23:22
    - 32-bit MSDOS - DosWorld, 24.09.2021, 20:54
- 32-bit MSDOS - RayeR, 28.06.2021, 03:59
  - 32-bit MSDOS - kerravon, 28.06.2021, 07:13
- 32-bit MSDOS - Zyzzle, 28.06.2021, 06:22
  - 32-bit MSDOS - kerravon, 28.06.2021, 07:30
- 32-bit MSDOS - marcov, 30.06.2021, 22:49
  - 32-bit MSDOS - kerravon, 30.06.2021, 23:08
    - 32-bit MSDOS - mceric, 01.07.2021, 01:52
      - 32-bit MSDOS - kerravon, 01.07.2021, 06:37
    - 32-bit MSDOS - tkchia, 03.07.2021, 22:13
      - 32-bit MSDOS - kerravon, 04.07.2021, 01:50
        32-bit MSDOS - tkchia, 04.07.2021, 09:08
        32-bit MSDOS - kerravon, 04.07.2021, 10:05
        32-bit MSDOS - tkchia, 04.07.2021, 10:53
    - 32-bit MSDOS - Brian_extended, 24.07.2021, 02:10
      - 32-bit MSDOS - kerravon, 06.08.2021, 13:56
        32-bit Public Domain OS - tom, 06.08.2021, 15:21
        32-bit Public Domain OS - kerravon, 06.08.2021, 15:57
      - 32-bit MSDOS - kerravon, 07.08.2021, 05:41
- 32-bit MSDOS - RayeR, 03.08.2021, 06:59
  - 32-bit MSDOS - kerravon, 06.08.2021, 13:50
    - 32-bit MSDOS - RayeR, 06.08.2021, 15:09
      - 32-bit MSDOS - kerravon, 06.08.2021, 16:07
        32-bit MSDOS - RayeR, 20.08.2021, 18:59
        32-bit MSDOS - kerravon, 27.09.2021, 04:28
        32-bit MSDOS - mceric, 28.09.2021, 01:04
        32-bit MSDOS - kerravon, 14.10.2021, 04:37
- 32-bit MSDOS - dggionco, 09.08.2021, 14:43
  - 32-bit MSDOS - kerravon, 09.08.2021, 15:39
    - 32-bit MSDOS - dggionco, 09.08.2021, 20:00
      - 32-bit MSDOS - kerravon, 09.08.2021, 21:25
        32-bit MSDOS - dggionco, 10.08.2021, 14:58
        32-bit MSDOS - kerravon, 10.08.2021, 17:06
        32-bit MSDOS - dggionco, 10.08.2021, 18:06
    - 32-bit MSDOS - dggionco, 09.08.2021, 20:09