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ARM version of MSDOS (Announce)

posted by boeckmann, Aachen, Germany, 06.11.2022, 16:53

> I'm not even after 1% binary compatibility. I'm after
> source code compatibility, and even willing to compromise
> on that depending on what the question is.
How is source code compatibility for MS-DOS being defined? DOS does not even expose a C API. It provides a system interface via interrupts, mainly 21H, accessible to X86 machine code. It is that system interface that is a main characteristic of MS-DOS and which compiler vendors faciliate to build their hopefully at minimum ANSI compatible C libraries around.

For my opinion, if you don't provide that interface you may call your software a DOS, but not MS-DOS.

Beside of that, have fun programming :-)

Bernd

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