DOS ain't dead - How to detect FreeDOS kernel from Turbo Pascal program?

How to detect FreeDOS kernel from Turbo Pascal program? (Developers)

posted by mceric, Germany, 15.01.2022, 00:22

> I am looking for a method of detection of running FreeDOS kernel

set ax=0x3000 and call int 0x21, check whether the returned bh is 0xfd.

if yes, set ax=0x33ff and call int 0x21, it returns a pointer dx:ax to a version string.

how to express this in the programming language of your choice is up to you, please share an example implementation code snippet here :-)

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FreeDOS / DOSEMU2 / ...

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Complete thread:

How to detect FreeDOS kernel from Turbo Pascal program? - rosegondon, 14.01.2022, 22:39 (Developers)
- How to detect FreeDOS kernel from Turbo Pascal program? - mceric, 15.01.2022, 00:22
  - How to detect FreeDOS kernel from Turbo Pascal program? - rosegondon, 15.01.2022, 16:20
    - How to detect FreeDOS kernel from Turbo Pascal program? - Rugxulo, 19.01.2022, 01:05
  - 21.33FF kernel version string interface - ecm, 15.01.2022, 17:32
    - 21.33FF kernel version string interface - rosegondon, 17.01.2022, 20:06
      - 21.33FF kernel version string interface - DosWorld, 18.01.2022, 02:54
        21.33FF kernel version string interface - rosegondon, 18.01.2022, 09:06
        21.33FF kernel version string interface - Laaca, 18.01.2022, 14:25
        21.33FF kernel version string interface - tkchia, 18.01.2022, 15:30
        21.33FF kernel version string interface - DosWorld, 18.01.2022, 16:44
        21.33FF kernel version string interface - rosegondon, 18.01.2022, 19:14
  - How to detect FreeDOS kernel from Turbo Pascal program? - Laaca, 18.01.2022, 19:06
    - How to detect FreeDOS kernel from Turbo Pascal program? - Rugxulo, 19.01.2022, 00:57
      - How to detect FreeDOS kernel from Turbo Pascal program? - Laaca, 19.01.2022, 10:33
- How to detect FreeDOS kernel from Turbo Pascal program? - Oso2k, 15.01.2022, 00:24
- How to detect FreeDOS kernel from Turbo Pascal program? - Laaca, 15.01.2022, 11:09
  - How to detect FreeDOS kernel from Turbo Pascal program? - mceric, 15.01.2022, 12:29