Re: [Freedos-devel] Calling interrupts when iddle

[C. M. <cm...@bt...>]

> (1) I'm talking about pure realmode, so 2Fh 1680h is what I need.

Yes, as I mentioned, if you're in real or V86 mode (not protected mode)  
then attempting 2F.1680 via 31.0300 is of course impossible and not  
necessary.

> (2) HLT could be another option, but it is not what I am looking for,
> as I would like to let others (TSRs in the same machine, i.e. 28H) or
> the VM that exists outside me (2Fh 1680h) to spend a bit of time doing
> their things, but I don't want to halt.

What if no waiting TSRs and no other VMs exist? Halting is then best.

> (3) Int 2Ah , AH=84h  is never mentioned. Curiously enough, it is in
> EDIT sources, and I think introduced by Eric, who also wrote APMDOS,
> so I'm sure he can extend a bit more on this too.

Yes, as I said, it isn't mentioned. I haven't looked into it much yet. It  
seems to miss an installation check but you could probably call it  
alongside other idling.

> (4) I am not convinced that I should NOT call int 28h. If I am not
> doing DOS calls where DOS iddles, and if I don't call 28h, then the
> TSRs that rely on this call won't work.

That's possible.

Regards,