search

PDP-10 / klh10

Community maintained version of Kenneth L. Harrenstien's PDP-10 emulator.
Other
59 stars 8 forks source link

Can't paste more than 65 characters #74

Open eswenson1 opened 2 months ago

eswenson1 commented 2 months ago

When you supdup over internet or chaosnet, or telnet over internet to an ITS system running under KLH10, you cannot copy from your host to the clipboard, and paste the result into an ITS login session without its being truncated to about 65 characters.

However, if you bring up a DDT on the operator console (T00), and paste there, you can paste the whole clipboard.

This is very annoying. The same thing doesn't happen over the various TTY channels in pdp10-k* simulators running ITS.

Rhialto commented 2 months ago

There was a similar thing with SIMH. I had that when using Kermit to send files into a PDP-11 instance running RSX (using a virtual serial line). The characters from the host towards the emulated serial hardware were presented essentially in large bursts, and the emulated operating system could not keep up, so some of them were dropped.

Mark P fixed this with an elaborate pacing mechanism, buffering incoming text and passing it on to the serial port at a pre-set speed (corresponding to the console speed).

However this sounds somewhat different. If this were the same issue, I would expect that you also had trouble at the DDT prompt. And no trouble at with the network connection in between.

So it must be different. Maybe the pasted text gets split into too many ethernet/chaos packets, and the NI can't keep up and drops some?

johnsonjh commented 2 months ago

While maybe less convenient than copy and paste, you can use K95 or C-Kermit's TRANSMIT facility as a workaround (e.g. SET TRANSMIT PAUSE 50 to add a 50ms delay between each character sent), until a proper solution can be implemented.