On 07/08/2017 18:37, Rod Smallwood via cctalk wrote:
So to-morrow connect up a terminal that will do 110 baud and try an echo
test.
Next part is interesting. There should be a way to fake a reader / punch
and feed in tape images.
There is. Look on Kevin McQuiggin's site:
http://highgate.comm.sfu.ca/pdp8/
In the section called "Software", about 1/3 of the way down, look for
send.c or better still new-send.c (I call it rsend, on my system). You
might also find rim.c and the BIN loader useful.
They're also on my webpage, with the corresponding manpages:
http://www.dunnington.info/public/PDP-8/
That's the easiest place to get the manpages for rim.c, send.c, rsend.c.
Here's the gist (top parts of the manpages):
rim - create RIM-format file from ASCII addr/instr
rim is a very simple converter. It reads in a file containing two
columns of ASCII digits; the first column is a list of addresses (in
octal) and the second is a list of machine instructions (also octal).
Output is a file suitable to feed to the RIM loader on a PDP-8.
send, rsend - send a file in RIM or BIN format to a PDP-8
send and rsend are utilities to transmit a RIM format or BIN format
file from a UNIX (or other) host to a PDP-8 over a serial line. The
PDP-8 should be running the RIM loader routine prior to starting
either of these programs.
Input should be a file in RIM format or BIN format. Output goes to
the host serial port, which should be connected via appropriate cable
to the PDP-8.
send is a simple version, with built-in serial port settings and a
fixed delay between characters. rsend is more sophisticated; it can
be controlled by command-line options or environment variables, and
can accept input on stdin.
On a Unix (or Linux etc) machine you can pipe the output from rim to
rsend, and if you're using papertape images (of which there are load on
the net), rsend can strip the headers for you.
--
Pete
Pete Turnbull
