Re: teraspace, user spaces, etc.

["Paul Godtland" <plg@xxxxxxxxxx>]

As was noted, the page size is now 4096 bytes. It was 512 bytes on IMPI
systems. This change is a good example of how MI forms an abstraction level
that generally protects its users from physical attributes like page size.
Yet the page size information is available for those few cases where it
might matter (MATRMD instruction, option  hex 12).

You had also asked about translation from virtual addresses to physical
main store addresses and DASD locations. This information is not specified
at MI, and for good reason. These mechanisms change between some hardware
models, but no one writing programs for an AS/400 or iSeries system has to
change anything.

Paul Godtland (speaking for me)

"Steve Richter" <srichter@AutoCoder.com>@midrange.com on 05/23/2001
12:38:14 PM

Please respond to MI400@midrange.com

Sent by:  owner-mi400@midrange.com


To:   <MI400@midrange.com>
cc:
Subject:  Re: teraspace, user spaces, etc.


Each segment is composed of 512 byte pages.


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