[Simh] Questions about VT emulation

Johnny Billquist bqt at softjar.se
Sat May 27 20:27:01 EDT 2017


The pchar mask is to tell which characters are let through on the 
console port. It's "printable characters".

Essentially, characters not in that mask just gets dropped without being 
printed.

Will it affect escape sequences? Yes, if the escape character, or any 
other character in that sequence are among the characters filtered out, 
then you will not what you might be expecting.

As for "usable VT emulators", it all depends on what your expectations 
and demands are.
Pretty much any terminal emulator will have some level of VT emulation 
in there. But most of them have some bugs somewhere or another.

It you are really picky, then the only one I've found acceptable is 
xterm, and the actual DEC terminal emulator in Pathworks.

But for most people, something like Putty works well enough.

	Johnny

On 2017-05-27 04:27, Joe Ambrose wrote:
> Hi Y'all !!!
>
> I am trying to set up a PDP-11 emulation using RT-11.....
>
> I've set up a remote telnet console and I'd like to find out what VT
> emulatior you find that works.
> Here's my config file....
>
> set console telnet=1111
> set cpu 11/23+ 256K
> attach LPT lpt.txt
> set rl0 writeenabled
> set rl0 rl02
> attach rl0 rl0.dsk
> boot rl0
>
> When I sh console... this is what I get....
>
> PDP-11 simulator V3.9-0
> Listening on port 1111 (socket 136)
> Disabling CR
> Waiting for console Telnet connection
> rt11.ini> boot rl0
> Simulation stopped
> sim> sh console
> WRU = 5
> BRK = 0
> DEL = 10
> pchar mask = 23600
> Logging disabled
> Listening on port 1111
> Debug output disabled
>
> My question is about the pchar mask.
> What's it for?
> Will it affect the escape sequences I need to emulate a VT?
>
> Any help is much appreciated!
>
> =================================================
> Joseph Ambrose
> 172 Ketcham Avenue
> Amityville, NY 11701
> Primary: 631-598-0528
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>      Blog: http://houseofdoejoegetsbigger.blogspot.com/
>
>
>
>
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-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol


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