7 Dec
2018
7 Dec
'18
7:57 a.m.
On 07/12/2018 09:59, Rod G8DGR via cctalk wrote:
OK now I need a little help.
Does anybody know of a terminal emulation program that will simulate the reader on an
ASR33?
I know about RIM and BIN loaders but how and what to feed them I have long forgotten
For a Unix or Linux machine, there's send and rsend, and several other
utilities, that you can find at Kevin McQuiggin's web page:
http://highgate.comm.sfu.ca/pdp8/
and on mine:
http://www.dunnington.info/public/PDP-8/
--
Pete
Pete Turnbull
7 Dec
7 Dec
12:12 p.m.
I just use ?cat?. Seems to work fine. ;-)
TTFN - Guy
On Dec 7, 2018, at 4:57 AM, Pete Turnbull via cctalk
<cctalk at classiccmp.org> wrote:
On 07/12/2018 09:59, Rod G8DGR via cctalk wrote:
OK now I need a little help.
Does anybody know of a terminal emulation program that will simulate the reader on an
ASR33?
I know about RIM and BIN loaders but how and what to feed them I have long forgotten
For a Unix or Linux machine, there's send and rsend, and several other utilities,
that you can find at Kevin McQuiggin's web page:
http://highgate.comm.sfu.ca/pdp8/
and on mine:
http://www.dunnington.info/public/PDP-8/
--
Pete
Pete Turnbull 
12:22 p.m.
Indeed, unless you need character pacing.
Thanks,
Jonathan
On Fri, Dec 7, 2018 at 12:13 PM Guy Sotomayor Jr via cctalk <
cctalk at classiccmp.org> wrote:
I just use ?cat?. Seems to work fine. ;-)
TTFN - Guy
On Dec 7, 2018, at 4:57 AM, Pete Turnbull via
cctalk <
cctalk at classiccmp.org> wrote:
On 07/12/2018 09:59, Rod G8DGR via cctalk wrote:
> OK now I need a little help.
> Does anybody know of a terminal emulation program that will simulate
the
reader on an ASR33?
> I know about RIM and BIN loaders but how
and what to feed them I have
long forgotten
For a Unix or Linux machine, there's send and rsend, and several other
utilities, that you can find at Kevin McQuiggin's web page:
http://highgate.comm.sfu.ca/pdp8/
and on mine:
http://www.dunnington.info/public/PDP-8/
--
Pete
Pete Turnbull
12:32 p.m.
On 07/12/2018 17:22, systems_glitch via cctalk wrote:
Indeed, unless you need character pacing.
Thanks,
Jonathan
That's just what I was going to say :-) And also provided you remember
which entry in /dev to redirect cat's output to, and what arcane stty
command you need to set baud rate and word size on that, and that you
have already edited the leader, trailer, and any junk off the tape file
you downloaded from the 'net :-)
On Fri, Dec 7, 2018 at 12:13 PM Guy Sotomayor Jr via
cctalk <
cctalk at classiccmp.org> wrote:
> I just use ?cat?. Seems to work fine. ;-)
>
> TTFN - Guy
>
>> On Dec 7, 2018, at 4:57 AM, Pete Turnbull via cctalk <
> cctalk at classiccmp.org> wrote:
>>
>> On 07/12/2018 09:59, Rod G8DGR via cctalk wrote:
>>
>>> OK now I need a little help.
>>> Does anybody know of a terminal emulation program that will simulate
> the reader on an ASR33?
>>> I know about RIM and BIN loaders but how and what to feed them I have
> long forgotten
>>
>> For a Unix or Linux machine, there's send and rsend, and several other
> utilities, that you can find at Kevin McQuiggin's web page:
>> http://highgate.comm.sfu.ca/pdp8/
>> and on mine:
>> http://www.dunnington.info/public/PDP-8/
>>
>> --
>> Pete
>> Pete Turnbull
>
>
--
Pete
Pete Turnbull
12:35 p.m.
These days I just use tip.
Warner
On Fri, Dec 7, 2018, 10:25 AM systems_glitch via cctalk <
cctalk at classiccmp.org wrote:
Indeed, unless you need character pacing.
Thanks,
Jonathan
On Fri, Dec 7, 2018 at 12:13 PM Guy Sotomayor Jr via cctalk <
cctalk at classiccmp.org> wrote:
I just use ?cat?. Seems to work fine. ;-)
TTFN - Guy
have
On Dec 7, 2018, at 4:57 AM, Pete Turnbull via
cctalk <
cctalk at classiccmp.org> wrote:
On 07/12/2018 09:59, Rod G8DGR via cctalk wrote:
> OK now I need a little help.
> Does anybody know of a terminal emulation program that will simulate
the
reader on an ASR33?
>> I know about RIM and BIN loaders but how and what to feed them I long forgotten
For a Unix or Linux machine, there's send and rsend, and several other
utilities, that you can find at Kevin McQuiggin's web page:
http://highgate.comm.sfu.ca/pdp8/
and on mine:
http://www.dunnington.info/public/PDP-8/
--
Pete
Pete Turnbull
12:39 p.m.
Er whats tip?
Sent from Mail for Windows 10
From: Warner Losh via cctalk
Sent: 07 December 2018 17:36
To: systems_glitch; General Discussion: On-Topic and Off-Topic Posts
Subject: Re: PDP-8/e
These days I just use tip.
Warner
On Fri, Dec 7, 2018, 10:25 AM systems_glitch via cctalk <
cctalk at classiccmp.org wrote:
Indeed, unless you need character pacing.
Thanks,
Jonathan
On Fri, Dec 7, 2018 at 12:13 PM Guy Sotomayor Jr via cctalk <
cctalk at classiccmp.org> wrote:
I just use ?cat?. Seems to work fine. ;-)
TTFN - Guy
have
On Dec 7, 2018, at 4:57 AM, Pete Turnbull via
cctalk <
cctalk at classiccmp.org> wrote:
On 07/12/2018 09:59, Rod G8DGR via cctalk wrote:
> OK now I need a little help.
> Does anybody know of a terminal emulation program that will simulate
the
reader on an ASR33?
>> I know about RIM and BIN loaders but how and what to feed them I long forgotten
For a Unix or Linux machine, there's send and rsend, and several other
utilities, that you can find at Kevin McQuiggin's web page:
http://highgate.comm.sfu.ca/pdp8/
and on mine:
http://www.dunnington.info/public/PDP-8/
--
Pete
Pete Turnbull
10:01 p.m.
On 07/12/2018 17:44, Jon Elson via cctalk wrote:
On 12/07/2018 11:22 AM, systems_glitch via cctalk
wrote:
A PDP-8/E doesn't have a CTS pin and the loaders don't support XON/XOFF,
though.
--
Pete
Pete Turnbull
Indeed, unless you need character pacing.
Actually, with the correct settings of the serial port (xon/xoff or CTS
pin) the serial port driver should do this, too, so cat would work. 
10:40 p.m.
On 12/7/2018 7:01 PM, Pete Turnbull via cctalk wrote:
On 07/12/2018 17:44, Jon Elson via cctalk wrote:
The PDP-8 needs to control the serial CTS function. This was called
reader-run when using a Teletype machine. FOCAL won't load without it.
You can modify the serial card (mine was an M8655) to support the
function. Here's what I did:
Cleaned up from Aaron Nabil's and Lyle Bickley's write up.
?Hack the M8655 to support reader-run by mapping it to RS-232 hardware
flow control.
1. Cut the trace leading from Pin 1 of E54 (a 7400).? This is the input
that clears the Reader Run FF when a new character starts to come in.
2. Jumper from Pin 1/E54 to Pin 3/E38, a spare gate on a 7400 that we
are going to use an inverter.
3. Tie Pin 1 and Pin 2 of E38 together, and run them to Pin 20 of E19,
the UART.
??? This supplies the signal to the reader-run FF that tells it that
it's got an incoming character and to de-assert the reader-run line.
??? Normally this is tied to the current loop receiver, we've just
moved it to the UART so any received data will clear the FF.
4. Cut a ground traces on 4 of E50, a 1488 RS-232 transmitter. This is
what would normally supply the continuously asserted RTS (and DTR) signal.
5. Jumper from pin 7 of E39, a 7474 flip-flop to pins 4 of E50. E39 is
the "reader-run flip-flop".? Now RTS follows the reader run signal.
Bob
--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org
On 12/07/2018 11:22 AM, systems_glitch via cctalk
wrote:
A PDP-8/E doesn't have a CTS pin and the loaders don't support
XON/XOFF, though.
Indeed, unless you need character pacing.
Actually, with the correct settings of the serial port (xon/xoff or
CTS pin) the serial port driver should do this, too, so cat would work.
8 Dec
8 Dec
2:10 a.m.
I?m sure that would work but I only have an 8650 110 baud only card
Rod
Sent from Mail for Windows 110 baud
From: Bob Rosenbloom via cctalk
Sent: 08 December 2018 03:41
To: cctalk at classiccmp.org
Subject: Re: PDP-8/e
On 12/7/2018 7:01 PM, Pete Turnbull via cctalk wrote:
On 07/12/2018 17:44, Jon Elson via cctalk wrote:
The PDP-8 needs to control the serial CTS function. This was called
reader-run when using a Teletype machine. FOCAL won't load without it.
You can modify the serial card (mine was an M8655) to support the
function. Here's what I did:
Cleaned up from Aaron Nabil's and Lyle Bickley's write up.
?Hack the M8655 to support reader-run by mapping it to RS-232 hardware
flow control.
1. Cut the trace leading from Pin 1 of E54 (a 7400).? This is the input
that clears the Reader Run FF when a new character starts to come in.
2. Jumper from Pin 1/E54 to Pin 3/E38, a spare gate on a 7400 that we
are going to use an inverter.
3. Tie Pin 1 and Pin 2 of E38 together, and run them to Pin 20 of E19,
the UART.
??? This supplies the signal to the reader-run FF that tells it that
it's got an incoming character and to de-assert the reader-run line.
??? Normally this is tied to the current loop receiver, we've just
moved it to the UART so any received data will clear the FF.
4. Cut a ground traces on 4 of E50, a 1488 RS-232 transmitter. This is
what would normally supply the continuously asserted RTS (and DTR) signal.
5. Jumper from pin 7 of E39, a 7474 flip-flop to pins 4 of E50. E39 is
the "reader-run flip-flop".? Now RTS follows the reader run signal.
Bob
--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org
On 12/07/2018 11:22 AM, systems_glitch via cctalk
wrote:
A PDP-8/E doesn't have a CTS pin and the loaders don't support
XON/XOFF, though.
Indeed, unless you need character pacing.
Actually, with the correct settings of the serial port (xon/xoff or
CTS pin) the serial port driver should do this, too, so cat would work. 
2:12 p.m.
On 12/07/2018 09:01 PM, Pete Turnbull via cctalk wrote:
On 07/12/2018 17:44, Jon Elson via cctalk wrote:
I remember loading paper tapes into a PDP-8, and the reader
would stutter, so I think there was some sort of signal from
the serial interface board to control the reader. It would
not be done with xon/xoff or CTS, as these were NOT RS-232
interfaces, but current loop. But, at least some people are
doing this with software-emulated PDP-8s, so that was sort
of what I was thinking of.
Jon
On 12/07/2018 11:22 AM, systems_glitch via cctalk
wrote:
A PDP-8/E doesn't have a CTS pin and the loaders don't
support XON/XOFF, though.
Indeed, unless you need character pacing.
Actually, with the correct settings of the serial port
(xon/xoff or CTS pin) the serial port driver should do
this, too, so cat would work.
2054
days inactive
2055
days old
10 comments
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