Jon Elson elson at pico-systems.com
Sat Dec 8 13:12:49 CST 2018

On 12/07/2018 09:01 PM, Pete Turnbull via cctalk wrote:
> On 07/12/2018 17:44, Jon Elson via cctalk wrote:
>> On 12/07/2018 11:22 AM, systems_glitch via cctalk wrote:
>>> 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.
> A PDP-8/E doesn't have a CTS pin and the loaders don't 
> support XON/XOFF, though.
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.


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