[Simh] xterm and simh

[Peter Allan]

I have just managed to answer my own question after much trawling through
man pages and reading the excellent xterm FAQ by Thomas E Dickey at
https://invisible-island.net/xterm/xterm.faq.html

By adding the line

XTerm.vt100.utf8: 0

to my .Xresources file, EDIT/TPU now displays correctly in an xterm
window with the VMS "terminal" set to EIGHT_BIT mode.

I feel I am now close to my goal of getting xterm set up so that it feels
like a real VT terminal.

Peter Allan


On Sat, 16 May 2020 at 19:20, Peter Allan <petermallan at gmail.com> wrote:

> Thanks Paul and Johnny. I did find the "8-bit controls" menu, but I get
> the problem whether it is ticked or unticked. I will check the UTF-8
> situation.
>
> Cheers
>
> Peter
>
>
> On Sat, 16 May 2020 at 19:12, Paul Koning <paulkoning at comcast.net> wrote:
>
>>
>>
>> > On May 16, 2020, at 11:06 AM, Johnny Billquist <bqt at softjar.se> wrote:
>> >
>> > Sounds like your problem is that TPU thinks your terminal understands
>> 8-bit control characters, while it actually doesn't.
>>
>> If VMS is like RSTS, there is an "8 bit characters" setting but no
>> separate 8-bit controls setting, and presumably programs assume the former
>> implies the latter.  After all, it does with DEC's terminals.
>>
>> > Ctrl+Left click should show a menu entry "8-bit controls", which is the
>> corresponding thing on the xterm side.
>> >
>> > However, to properly answer your question, we'd need to know a lot more
>> about your environment. And it's a bit hard to even ask the right questions
>> here, because xterm is so flexible that you can accomplish a lot of stuff
>> in multiple ways, and you might not even know what you are doing... And VMS
>> tries to figure out what your terminal is, and depending on various
>> details, xterm will identify in different ways, which is what VMS then base
>> its settings on...
>>
>> As Johnny also pointed out, be sure not to have xterm set for UTF-8.  Not
>> just because of 8-bit controls, but also because DEC applications are
>> unlikely to know about it; they normally assume DEC MCS (a.k.a., DEC Std
>> 169).  Latin-1 is a good approximation though not identical.
>>
>>         paul
>>
>>
>>
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