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  • Subject: Re: why the 16meg space size limit?
  • From: "Leif Svalgaard" <leif@xxxxxxxx>
  • Date: Mon, 21 May 2001 16:15:05 -0500

So, could a teraspace pointer have a diff "k" value and shift the segment value over a byte or two?
KAAAA000 0000SSSS SSSSSS00 0000TTAA
Then use the addr xlate tables or whatever built into the cpu to provide a contiguous looking group of segments?  The intel 386 architecture solved the segment problem with paging and addr xlate support built into the cpu.  no
 
====> so, all we need is an Intel/386 to run OS/400  :-)
 
For all I know that is how they implement a teraspace in the first place.
The problem is that teraspaces are not 1st class objects, hence cannot
be made permanent etc. As with any architechture, once the segments
become too small, it becomes a major pain to circumvent the limits.

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