Re: [Freedos-devel] NMI In FreeDOS

[Bret J. <bre...@ju...>]

> ...
> In each case, when the NMI sent, nothing happened.  Now I know it
> used to work way back when I ran DOS as my OS using a hardware
> breakout switch, so I'm puzzled.
>
> This might well be a VirtualBox problem, but I thought I'd ask here
> first.

I don't see how this could be a FreeDOS problem.  NMI (at least when not in a VM) is controlled by hardware, not software.  The only thing that software (FreeDOS) can do is manage what happens when the NMI is generated -- I don't think there's any way (with software) to control whether NMI is generated at all.

But, maybe somebody else knows something I don't.