KA620 (was Opening a VAX2000)

18 Mar 2004

...
   A KA620 is the
same as a KA630 except that the P0 and P1 page tables
 are looked up in physical memory rather than system virtual memory.  Ahh, I've
heard of such a beast called rtVAX.  It's mentioned in VARM
 2nd ed.  So rtVAX and KA620 are the same thing, right? 
Possibly - or perhaps a KA620 is one example of an rtVAX, much as a
KA630 is an example of a VAX.  I have never heard of an rtVAX except in
passing email references like this, so I cannot speak with any
authority to what such a thing is or isn't.

My VARM is "Revision 6.1" and is not obviously marked with an edition
number.  I don't recall seeing an rtVAX mentioned in it, and the index
does not list anything beginning with rt-.

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KA620 (was Opening a VAX2000)