DOS ain't dead - trip report: Tiny C Compiler 0.9.27

trip report: Tiny C Compiler 0.9.27 (Miscellaneous)

posted by bencollver , 04.02.2026, 21:44

> It's perhaps a COMMAND.COM issue.
>
> I cannot remember all details currently, but since the cmdline in the PSP
> is restricted to 126 bytes, MS has extended this in MS-DOS 7.x : there's
> supposed to exist an environment variable CMDLINE, which may hold a cmdline
> of "any" size. HX's Win32 kernel emulation dkrnl32 uses this environment
> variable if possible.

Thanks for this detail!

Coincidentally, i've used an environment variable to pass command line arguments into QBASIC.EXE from a .bat file because QBASIC.EXE does not directly support using command line arguments from BASIC.

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Complete thread:

trip report: Tiny C Compiler 0.9.27 - bencollver, 04.02.2026, 17:02 (Miscellaneous)
- trip report: Tiny C Compiler 0.9.27 - tkchia, 04.02.2026, 17:55
  - trip report: Tiny C Compiler 0.9.27 - bencollver, 04.02.2026, 18:48
    - trip report: Tiny C Compiler 0.9.27 - Japheth, 04.02.2026, 21:12
      - trip report: Tiny C Compiler 0.9.27 - bencollver, 04.02.2026, 21:44
      - trip report: Tiny C Compiler 0.9.27 - bretjohn, 05.02.2026, 22:24
        trip report: Tiny C Compiler 0.9.27 - Rugxulo, 05.02.2026, 23:09
        trip report: Tiny C Compiler 0.9.27 - bretjohn, 06.02.2026, 01:59
    - trip report: Tiny C Compiler 0.9.27 - bencollver, 04.02.2026, 21:38
      - trip report: Tiny C Compiler 0.9.27 - tkchia, 05.02.2026, 16:44
        trip report: Tiny C Compiler 0.9.27 - bencollver, 05.02.2026, 18:34
        trip report: Tiny C Compiler 0.9.27 - bencollver, 05.02.2026, 22:22
        trip report: Tiny C Compiler 0.9.27 - tkchia, 05.02.2026, 23:13
        trip report: Tiny C Compiler 0.9.27 - Rugxulo, 05.02.2026, 23:16
        trip report: Tiny C Compiler 0.9.27 - tkchia, 05.02.2026, 23:18
        trip report: Tiny C Compiler 0.9.27 - tkchia, 06.02.2026, 23:45
- trip report: Tiny C Compiler 0.9.27 - bencollver, 11.02.2026, 00:44
  - trip report: Tiny C Compiler 0.9.27 - Rugxulo, 11.02.2026, 01:42
    - trip report: Tiny C Compiler 0.9.27 - bencollver, 11.02.2026, 02:06