Ebay GT-40 in the Netherlands

Paul Koning paulkoning at comcast.net
Fri Apr 10 11:06:18 CDT 2015

> On Apr 10, 2015, at 11:58 AM, Phil Budne <phil at ultimate.com> wrote:
>> Date: Fri, 10 Apr 2015 11:25:56 -0400
>> From: John Wilson <wilson at dbit.com>
>> On Fri, Apr 10, 2015 at 10:03:42AM -0400, Paul Koning wrote:
>>> I thought that had been done.  I distinctly remember a graphics device
>>> emulation that implemented persistence, something I have since applied in
>>> another place (Cyber console emulation).  I forgot the author???s name,
>>> but I thought it was for SIMH and specifically GT40 emulation.
>> I too thought SIMH had it.  And E11 certainly does (in all versions except
>> Linux -- WLINK still can't do ELF dynlinks, last I checked).  Obviously, the
>> lunar lander is the "killer app" for the VT11.
>> John Wilson
>> D Bit
> http://www.ultimate.com/phil/xy/
> Doug Gwyn made MAJOR contributions to the VT11/VS60 simulation.
> It also has "Type 30" support for the PDP-1.
> I started (but never finished) "Type 340" support.
> Someone was looking at (re)integrating it with modern SIMH.  I'd
> encourage anyone who works on this to use some modern display layer
> (e.g. SDL), rather than the primative adaptation layer(s) I wrote.

Thanks Phil.  Yes, the work by Doug and you was what I had in mind.

My favorite portable display layer would be wxWidgets; that’s the one I use for my Cyber emulator work.  I’ve seen mention of the one in SDL.  It seems to be more game-oriented, at least judging by some of the discussion.


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