[Simh] Problems running simH in Android

Wed May 9 16:51:12 EDT 2018

That’s great.

Nougat (Android 7.0 and 7.1) are the most interesting ones.

The fix/workaround for original problem you were seeing with tcsetattr() appeared somewhere the Marshmallow and Oreo timeframe.  The workaround is implemented specifically for a particular __ANDROID_API__ version level (which directly corresponds to the Android version).  Testing on 7.0 and 7.1 will determine when the difference appeared and the workaround can be enabled for these versions.

From: Ray Jewhurst [mailto:raywjewhurst at gmail.com]
Sent: Wednesday, May 9, 2018 1:45 PM
To: Mark Abene <phiber at phiber.com>
Cc: Mark Pizzolato <Mark at infocomm.com>; simh <simH at trailing-edge.com>
Subject: Re: [Simh] Problems running simH in Android

Lollipop works too.

On Wed, May 9, 2018, 4:21 PM Mark Abene < > wrote:
Volume-down is the Control key in termux. Holding volume-down and hitting the 'e' key works just fine.

-Mark

On Wed, May 9, 2018 at 11:49 AM, Mark Pizzolato <Mark at infocomm.com<mailto:Mark at infocomm.com>> wrote:
The github master branch code should now work under termux on Android for at least Marshmallow on up.  I have tested Marshmallow and Oreo.  I would appreciate confirmation on other Android versions:

1)      Install termux from the Google Play Store

2)      Under termux, Install the tool chain:

    $ pkg install clang make git

3)      Testing with:

    $ git clone https://github.com/simh/simh

    $ cd simh

    $ make vax

    $ BIN/vax

    sim> B

If you end up at the >>> prompt everything looks good.  If you did this without a physical keyboard connected, you won’t be able to type Control-E to get back to the sim> prompt.  Just enter B ZZZ which is an unknown device and the boot ROM will halt returning you to the sim> prompt.

Once you get that far, all the other simulators should build fine and be usable pretty much like on most other Linux environments.  Things which require root access won’t work since termux doesn’t give you that.  It would be interesting to know if NAT mode networking works for the VAX simulators…

From: Mark Pizzolato
Sent: Tuesday, May 8, 2018 11:00 PM

To: Mark Pizzolato <Mark at infocomm.com<mailto:Mark at infocomm.com>>; Ray Jewhurst <raywjewhurst at gmail.com<mailto:raywjewhurst at gmail.com>>; simh <simH at trailing-edge.com<mailto:simH at trailing-edge.com>>
Subject: RE: [Simh] Problems running simH in Android

Hi Ray,

Give the latest github code a try.

BTW, what Android version is running on your phone/tablet?

What is the output of ‘uname –a’ in your termux session?

-          Mark
  __
From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Mark Pizzolato
Sent: Tuesday, May 8, 2018 8:13 AM
To: Ray Jewhurst <raywjewhurst at gmail.com<mailto:raywjewhurst at gmail.com>>; simh <simH at trailing-edge.com<mailto:simH at trailing-edge.com>>
Subject: Re: [Simh] Problems running simH in Android

To follow up a little more on this.

The call to tcsetattr() is failing with errno: 13 – Permission denied

From: Mark Pizzolato
Sent: Sunday, May 6, 2018 11:47 PM
To: Mark Pizzolato <Mark at infocomm.com<mailto:Mark at infocomm.com>>; Ray Jewhurst <raywjewhurst at gmail.com<mailto:raywjewhurst at gmail.com>>; simh <simH at trailing-edge.com<mailto:simH at trailing-edge.com>>
Subject: RE: [Simh] Problems running simH in Android

I did a little digging and struggled with typing a whole bunch on my
phone.

The problem you’re seeing is due to the Linux OS environment you’re
running under doesn’t support ‘raw’ mode for terminal I/O.  When you
start a simulator the traffic to/from the simulated console device is
expected to be exactly the characters that the user types on the console
keyboard.  To achieve this, the current tt mode is gathered with tcgetattr()
then those attributes are adjusted so that every character typed is received
without any interpretation by the OS and output is also not translated (i.e.
\n only sends a LF character instead of CRLF characters).  The error message,
you seeing is due to the call a tcsetattr() failing.

From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Mark Pizzolato
Sent: Saturday, May 5, 2018 8:38 PM
To: Ray Jewhurst <raywjewhurst at gmail.com<mailto:raywjewhurst at gmail.com>>; simh <simH at trailing-edge.com<mailto:simH at trailing-edge.com>>
Subject: Re: [Simh] Problems running simH in Android

If you’re not comfortable digging into this yourself, then please create an
Issue at https://github.com/simh/simh/issues and spell out exactly how to
recreate your setup and reproduce the problem.

From: Simh [mailto:simh-bounces at trailing-edge.com] On Behalf Of Ray Jewhurst
Sent: Saturday, May 5, 2018 5:48 PM
To: simh <simH at trailing-edge.com<mailto:simH at trailing-edge.com>>
Subject: [Simh] Problems running simH in Android

Greetings

I have been trying forever to get simh to run under the Termux Android shell app and got very close but no cigar. It builds okay but then when I try running it, it starts fine but when I go to run an OS,  I get this:

PDP-11 simulator V4.0-0 Current        git commit id: f2f4bfa8
sim> do rt1154f.ini
Disabling XQ
rt1154f.ini-3> b rk0
sim_ttrun() returned: Console input I/O error
sim>

Any ideas?

Thanks

Ray

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