Using SIMH with puTTY
                             =====================

SIMH on Windows uses a Windows console for text I/O. SIMH ignores the function 
and editing keys, so the PDP11 code running in SIMH don't receive them.

SIMH can connect its console to a telnet connection, with this you can connect 
to a local telnet client and use that as the SIMH console. puTTY is a very 
versatile terminal client that will connect to a telnet server.

It took me a very long time to get SIMH working with puTTY as one cruicial bit 
of information was missing from all the documentation available. This is how I 
got SIMH and puTTY working.

Run puTTY.
In the configuration, set the Terminal and Window settings to taste
In Session, set:
 Host name: localhost
 Port: 8023
 Connection: telnet
 Saved sessions: simh
 Save
Then select Open and allow the connection to fail, then quit puTTY.

I start SIMH with a batch file that references an INI file:
unix7.bat:
cd /d %0\..
start pdp11 unix7.ini

unix7.ini:
set console telnet=localhost:8023
set console pchar=37777777777
set cpu 11/45
set rl0 rl02
attach rl0 unix_v7_rl.dsk
!start C:\Apps\Internet\puTTY\putty.exe -load simh
boot rl0

Adjust the paths to pdp11, putty, and the disk images to fit your system.

Now, very important, TURN OFF YOUR FIREWALL!!!!!!!

Running unix7.bat should start SIMH, start puTTY, and connect the two. This also 
works for my unix6, unixbsd and rt11 launchers, mounting the relevant images and 
booting the relevant disks. The important bit is to run puTTY from the INI file, 
and to turn off the firewall before doing so. If you run puTTY it from the batch 
file it times out before SIMH has managed to get started, and running it 
manually you never managed to click in all the right places in time. If you 
don't turn off your firewall, the connection will be killed and puTTY will give 
a 'Network error: connection refused' error.

There should be a way to configure your firewall to create an exception for 
puTTY and SIMH, but at the moment I haven't managed to find the way to do that 
here with Avast. So, at the moment, I turn Avast off, launch SIMH/puTTY, then 
turn it back on again. It only needs to be off for the initial connection.