512 vs 640 K

[Alan H. Mintz]

While installing a Specialix serial board today, I noticed the init script
asked whether the machine had 512K or 640K of base memory. It does this in
order to recommend an address for the card's 32K address space. 

The question is, will XENIX install and run correctly on a machine that has
it's memory mapped for 512K base and the rest above 1 meg ?

When we sell a machine with 16 Megs of memory and VGA, it is tough to find 
address space for accessories (like more than two SI cards). Losing 128K
of memory out of 16Mb is nothing compared to the benefit of another 128K
of available address space!

If nobody has tried this, I will do it next time I set up a machine and post the
results if anyone cares.
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