DOS ain't dead

I made my own DOS implementation (Announce)

posted by tom , Germany (West), 23.03.2024, 12:20

>
> The program can change the memory allocation strategy and then load another
> instance of itself to the memory using normal DOS syscalls.
That's pretty much nonsense.

> For example, the program could free its environment segment and file
> handles, allocate memory for the resident part, copy its own PSP to the
> resident part (with memcpy to make sure that the parent PSP does not
> change), change the current PSP to the new PSP, jump to the new PSP, free
> the old PSP and then exit via int21,ah=31.
I prefer my method.

Complete thread:

• I made my own DOS implementation - samwdpckr, 07.12.2023, 05:07 (Announce)
  • I made my own DOS implementation - CandyMan, 07.12.2023, 22:17
    • I made my own DOS implementation - Zyzzle, 07.12.2023, 23:58
      • I made my own DOS implementation - samwdpckr, 08.12.2023, 02:43
        • I made my own DOS implementation - tom, 08.12.2023, 15:52
          • I made my own DOS implementation - samwdpckr, 08.12.2023, 22:11
            • I made my own DOS implementation - tom, 09.12.2023, 01:46
            • I made my own DOS implementation - marcov, 09.12.2023, 11:29
              • I made my own DOS implementation - nico7550, 16.12.2023, 14:17
                • I made my own DOS implementation - samwdpckr, 27.12.2023, 17:59
                  • I made my own DOS implementation - nico7550, 28.12.2023, 08:31
                  • I made my own DOS implementation - 0ffer, 30.12.2023, 09:35
        • I made my own DOS implementation - Zyzzle, 08.12.2023, 15:56
  • I made my own DOS implementation - SuperIlu, 07.12.2023, 23:24
  • I made my own DOS implementation - 0ffer, 25.12.2023, 20:31
  • I made my own DOS implementation - RayeR, 31.01.2024, 17:13
    • I made my own DOS implementation - tom, 31.01.2024, 22:02
      • I made my own DOS implementation - Japheth, 01.02.2024, 08:32
    • I made my own DOS implementation - samwdpckr, 01.02.2024, 15:36
      • I made my own DOS implementation - RayeR, 01.02.2024, 19:01
        • I made my own DOS implementation - samwdpckr, 01.02.2024, 19:09
          • I made my own DOS implementation - RayeR, 02.02.2024, 05:22
            • I made my own DOS implementation - KormaX, 02.02.2024, 11:11
              • I made my own DOS implementation - samwdpckr, 02.02.2024, 20:20
                • I made my own DOS implementation - RayeR, 11.02.2024, 15:52
  • I made my own DOS implementation - samwdpckr, 12.03.2024, 22:56
    • I made my own DOS implementation - fritz.mueller, 15.03.2024, 14:49
      • I made my own DOS implementation - samwdpckr, 15.03.2024, 20:46
        • I made my own DOS implementation - fritz.mueller, 16.03.2024, 20:01
          • I made my own DOS implementation - samwdpckr, 16.03.2024, 23:11
            • I made my own DOS implementation - samwdpckr, 18.03.2024, 01:52
              • I made my own DOS implementation - fritz.mueller, 18.03.2024, 13:25
                • I made my own DOS implementation - samwdpckr, 18.03.2024, 22:22
                  • I made my own DOS implementation - fritz.mueller, 20.03.2024, 15:56
                    • I made my own DOS implementation - samwdpckr, 21.03.2024, 18:06
                      • I made my own DOS implementation - tom, 21.03.2024, 19:32
                        • I made my own DOS implementation - samwdpckr, 21.03.2024, 19:56
                          • I made my own DOS implementation - fritz.mueller, 21.03.2024, 22:14
                        • I made my own DOS implementation - samwdpckr, 21.03.2024, 22:21
                          • I made my own DOS implementation - ecm, 22.03.2024, 00:21
                            • I made my own DOS implementation - samwdpckr, 22.03.2024, 02:06
                              • I made my own DOS implementation - ecm, 22.03.2024, 07:31
                              • I made my own DOS implementation - tom, 22.03.2024, 10:58
                              • I made my own DOS implementation - tom, 22.03.2024, 11:22
                                • I made my own DOS implementation - samwdpckr, 22.03.2024, 13:14
                                  • I made my own DOS implementation - tom, 22.03.2024, 14:12
                                    • I made my own DOS implementation - samwdpckr, 22.03.2024, 16:21
                                      • I made my own DOS implementation - tom, 22.03.2024, 17:32
                                        • I made my own DOS implementation - samwdpckr, 23.03.2024, 08:10
                                          • I made my own DOS implementation - ecm, 23.03.2024, 09:58
                                          • I made my own DOS implementation - tom, 23.03.2024, 12:20
                                            • I made my own DOS implementation - samwdpckr, 23.03.2024, 20:32
                                              • I made my own DOS implementation - samwdpckr, 26.03.2024, 04:36
                                                • I made my own DOS implementation - samwdpckr, 27.03.2024, 23:29
                                                  • I made my own DOS implementation - Rugxulo, 28.03.2024, 01:29
                                                    • I made my own DOS implementation - samwdpckr, 28.03.2024, 04:15
                                                      • I made my own DOS implementation - fritz.mueller, 28.03.2024, 21:19
                                                        • I made my own DOS implementation - samwdpckr, 29.03.2024, 18:00
                                                          • I made my own DOS implementation - Rugxulo, 29.03.2024, 22:01
                                                            • I made my own DOS implementation - samwdpckr, 29.03.2024, 22:31
                                                              • I made my own DOS implementation - Rugxulo, 08.04.2024, 03:19
                                                                • I made my own DOS implementation - fritz.mueller, 17.05.2024, 12:49
                                                      • I made my own DOS implementation - Rugxulo, 29.03.2024, 02:53
                                                      • I made my own DOS implementation - Rugxulo, 30.03.2024, 10:16
                                                        • I made my own DOS implementation - samwdpckr, 30.03.2024, 20:09
                                                          • I made my own DOS implementation - Oso2k, 31.03.2024, 21:22
                                                            • I made my own DOS implementation - Rugxulo, 31.03.2024, 22:59
                                                          • I made my own DOS implementation - samwdpckr, 01.04.2024, 16:31
                                              • I made my own DOS implementation - samwdpckr, 08.09.2024, 01:32
                                                • I made my own DOS implementation - samwdpckr, 31.10.2024, 22:29