In article
<14a310ee-cffe-4b98-b8d5-4ce74c9f1229@[EMAIL PROTECTED]
>
spamtrap@[EMAIL PROTECTED]
"junkoi " writes:
> Hi,
>
> I am wondering if my option ROM can use Extended BIOS Data Area (EBDA)
> to store some (very) small data (around 16bytes)? Which area in EBDA
> is safe and guaranteed for my option ROM?
>
> Do anybody know any updated documentation about EBDA?
>
> Thanks,
> J
According to Peter Norton's PC Programmer's Bible (and cross-
checked in RBIL) there is a "free for all" area of 16 bytes at
address 40:00F0 to 40:00FF -- the Intra-Program Communications
Area.
As anybody can use this (though I've never come across anyone
other than me who did!) PN recommends that you include a checksum
or signature there in order to have some confidence that the data
you're reading back is yours...
Pete
--
"We have not inherited the earth from our ancestors,
we have borrowed it from our descendants."
