Multiprocessor Qbus PDP-11
John Forecast
john at forecast.name
Fri Aug 20 15:31:16 CDT 2021
> On Aug 19, 2021, at 7:39 PM, Charles Dickman via cctalk <cctalk at classiccmp.org> wrote:
>
> There are indications in the KDJ11-B processor spec on bitsavers that the
> M8190 could be used in a multiprocessor configuration. For example, bit 10
> of the Maintenance Register (17 777 750) is labeled "Multiprocessor Slave"
> and indicates that the bus arbitrator is disabled. There is also section
> 6.6, "Cache Multi-Processor Hooks", that describes cache features that
> allow multiprocessor operation.
>
> Would it be as simple as connecting to 11/83 qbus together? And adding the
> proper software.
>
> Anybody ever heard of such a thing?
>
> Chuck
See:
<https://www.miim.com/faq/hardware/multipro.shtml#qbus <https://www.miim.com/faq/hardware/multipro.shtml#qbus>>
for more info on multi-processor PDP-11s including KDJ11-B’s.
John.
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