[Simh] NVAX/CVAX-based VAXstation emulation?

Fri Apr 5 16:00:24 EDT 2019

Matt Burke has implemented the QDSS VCB02 Dragon colour graphics device in his side branch of SimH, as a VAXstation II. I’ve tried a prototype and it seems to work well, up to the limits of VS2 memory limits etc.

I believe he intends to merge it into mainstream SimH in due course, as his time allows. If anyone wants to help, he can be contacted through 9track.net. 

Regards.

-- 
Paul Hardy | 
Cambridge, UK |
www.pghardy.net |

On 5 Apr 2019, at 01:34, Timothy Stark <fsword007 at gmail.com> wrote:

Of course, I would like to see NVAX emulation for SIMH emulator like VAX 4000/6000 series.
Also I want to see color display instead of QVSS monochrome. 

That give full 32-bit physical addressing that give up to 3.5 GB main memory. 

Tim

-----Original Message-----
From: Simh <simh-bounces at trailing-edge.com> On Behalf Of Mark Pizzolato
Sent: Thursday, April 4, 2019 8:23 PM
To: Chris Hanson <cmhanson at eschatologist.net>; simh at trailing-edge.com
Subject: Re: [Simh] NVAX/CVAX-based VAXstation emulation?

> On Thursday, April 4, 2019 at 4:33 PM, Chris Hanson wrote:
> Is anyone planning to add NVAX/CVAX-based VAXstation emulation to simh?
> 
> I was surprised that pretty much nothing appears to emulate (for 
> example) the VAXstation 4000 series.

Feel free to attempt to emulate the graphics on that system.  It is a pretty big project.  :-)

Meanwhile, the VAX simulator does have support (not console) for the QVSS
graphics device.   That is a mono-chrome only display, but it certainly 
exercises the basics.

- Mark
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