7 Dec
2005
7 Dec
'05
4:11 p.m.
...
On Pentium systems, at least the current ones, a larger "page" is used to
map most of the kernel memory into every logical address space with a single
entry. IIRC the default mapping is 4 MB.
Gil
Is XP
guaranteed to map 0x000c0000 physical into c000:0
virtual in a
VM86 session? Does it keep the whole ROM space
mapped to
its corresponding
physical addresses? It certainly has to hide the
video
RAM... I would
have expected it to replace the ROM with one of
its own as well.
I don't believe XP does anything more than copy the ROM into
a bank of RAM and then map the RAM.
Cheers,
Chuck