Max address on 3B20 query

Sam Kendall kendall at talcott.UUCP
Tue Nov 5 15:25:14 AEST 1985


On a 3B20S running System V Release 2.0.2, the maximum address seems
to be 0xFFFFF, which seems to mean 20-bit addressing.  Questions:

(1) Is this a hardware or software limit?
(2) If hardware, is it the same on the 3B20A?
    If software, how about for System V Release 2.1?  Release 3?
(3) Is the limit going to change?  It had better, for a decent virtual
    address space.

Sam Kendall
Delft Consulting Corp.
{allegra, ihnp4, philabs, seismo!cmcl2}!delftcc!sam (or this address)
(212) 243-8700



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