DOS ain't dead - a.out support in dos

a.out support in dos (Announce)

posted by marcov, 04.07.2021, 23:22

> I am experimenting with compilers. I am very interested in a.out as it is
> very simple. Can you tell me more - who also supports this format?

Few new stuff. a.out is an old Unix fileformat. Unix changed to COFF and then later to ELF. Microsoft, as an Unix licensee, based its fileformat on COFF and called it PE/COFF.

I think Linux directly jumped from a.out to ELF, with Linux 2.0 somewhere in the late nineties.

I think OpenBSD changed much later (about 10 years later?) some 3.x version.

If you are interested in a.out get the book "Linkers and Loaders" by "John R Irvine". The authors site used to have it up for free.

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