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

Kyle Owen kylevowen at
Thu Jan 15 22:39:33 CST 2015

On Thu, Jan 15, 2015 at 9:47 PM, Johnny Billquist <bqt at> wrote:

> There have been lots of positive comments, and obviously some people have
> even tested using the software.

I shall echo the sentiments of others; thanks for releasing this!

So - same as before. Disk image and tape image are available at
> Madame.Update.UU.SE. Use anonymous ftp.
> Disk image is also available at
> .
> The disk image is a virtual RL02 disk. Can be used with any emulator, or
> also directly inside RSX if you have virtual devices available.

Johnny, you mentioned you're running under E11. Has anyone tried it under
SimH yet? I put together an 11/70 1MB system under the PDP-11 emulator
(built with Ethernet support under OS X 10.9) and have installed
RSX-11M-PLUS 4.6. When I was installing, SYSGEN reported 512k of RAM
instead of 1M, which alarmed me. I went into manual mode and told it
explicitly 1M. That's been my only hiccup so far, and that's about where
I'm at. If anyone has any suggestions for a newcomer to RSX, I'd certainly
appreciate it. I'd be more than willing to write up a tutorial if someone
can help me the rest of the way.



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