Hi..
 > Limit?  The 386 can address something like 48-bit address space (like
 > XXX TB!)
 > using segmented protected mode... (I will find the actual amount later
 > it's in
 > my 386 specs...)
The 386DX has 32-bit addressing and can access 4Gb of physical RAM. The 386SX 
has 24-bit addressing and can access 16Mb of physical RAM.
 > MP> A page size of 4 MB can't be very practical I think, because swapping
 > must
 > MP> then be done in 4 MB granularity, too. Therefor swapping must need 
ore
 > MP> time, doesn't it ? However I think I need 4 MB pages like a fish needs 
a
 > MP> bicycle.
This only applies if you use paging. If you don't use paging, it's 
irrelevant. If you do use paging, you have to swap a page at a time. This can 
be good or bad - 4k pages means you can be very efficient with your ram use 
(don't swap more than you need to - at most you swap 4095 bytes too much) 
whilst 4Mb pages means you can swap _everything_ and not have to worry about 
making 4096 4k swaps - it all depends on how you design your system.. since 
most people will never get as far as using paging, it's usually quite 
irrelevant.
    Craig
--- FMail/386 1.20+
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