"H. Peter Anvin" <[email protected]> writes:
> Eric W. Biederman wrote:
>>> Oh, right. And this runs with interrupts off, so you only need one
>>> dword. That's fine, of course, although the location is a bit awkward.
>>
>> Yep. That is what I found when surveyed the available locations.
>
> Look at the structure definition I just posted; I think you'll find that
> using something not in the immediate extension area for the video area
> would have been preferrable, I would suggest 0x5c or 0x1e4.
My notes show 0x5c reserved for additional apm_bios_info, although
of the top of my head I don't know how realistic that is.
0x1e4 does look available.
It has been a long time since I made that choice, and I do see that
looking at struct screen_info I did remember to document that I was
using 0x3c, even in your structure.
It is all internal to our boot process and external code isn't going
to use it so we can change it if we feel like.
Eric
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