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EDR-DOS development (Announce)

posted by ecm Homepage E-mail, Düsseldorf, Germany, 15.08.2023, 20:46

> > Did you actually not use the EDR-DOS packer to compress your kernel
> files?
>
> I used aPACK, UPX and FASM for compression.
Do you want to share scripts or descriptions for this too? Your latest sources only seem to add the load-fix.inc file as a part that seems related to compression.


> My actual code:
> https://megawrzuta.pl/download/535349ee2e5dbc3a2d9afc8bc2330325.html
I have some questions:

Why do you want to clear only 12h bytes at 0:500h rather than 20h bytes?

Can you describe the failure without your disk.asm change not to do something with diskette units?

Why did you change the colour offset? It seems like 24, 25, 26 points after the CON device header and its "COLOUR" signature while you subtract 6. So it actually uses the signature as data.

I don't think unsupported subfunctions of a partially supported int 21h service 71h function should return 7100h.

Both FreeDOS and RxDOS do not check for DX being zero for function 33FFh. I did call it like that in callver as well as in comcom32 but that is just to harden the check on whether it is supported.

Finally, what name (if any) do you want me to enter into the repository for changes I pick from your patches?

---
l

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