SimH Help, was Re: Announcing TCP/IP for RSX-11M-PLUS

Johnny Billquist bqt at
Fri Jan 16 06:32:33 CST 2015

On 2015-01-16 05:58, Kyle Owen wrote:
> On Thu, Jan 15, 2015 at 10:44 PM, Johnny Billquist <bqt at> wrote:
>> As for memory, I hope you are aware that RSX reports memory in kilowords,
>> not kilobytes. :-)
> Doh...! No, I wasn't aware of that. In which case, SYSGEN apparently had no
> problem detecting how much RAM was in the system! Thanks for that tidbit.

Yep. :-)

>> But anyway, why not go for a fully loaded machine when you have the chance?
>> Slightly less than 4MB, or 2MW.
> Well, I suppose if it's as easy as changing the config file and re-running
> SYSGEN, I'll do it.

No need to SYSGEN. The system will pick the memory size at boot.

> I'll check out that documentation pronto (Intro to RSX sounds like a great
> start). Right now, I've been working on punched card reading on the PDP-8,
> as well as emulating a VC8E. Sounds like I need to catch up on the 16-bit
> realm for a change!

Have fun! :-)


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