QSIC update - v6 Unix boots and runs

Paul Koning paulkoning at comcast.net
Mon Jan 29 18:47:36 CST 2018

> On Jan 29, 2018, at 6:03 PM, Noel Chiappa via cctalk <cctalk at classiccmp.org> wrote:
> ...
>> (actually, this should work with Q18 QBUS systems as well)
> Goodness, never thought of that. Hmmm.. it's probably enough hassle to mod
> the software (who ever heard of a 'QBUS map' on a QBUS -11 - but you'd need
> it to give DMA devices access to high memory) ...

No, there is no such thing as a QBUS map.  Q18 systems are like 18 bit Unibus systems such as the 11/45: they have a max of 124 kW of memory so 18 bits address all available memory.


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