Hi Quentin, Please try using the latest code from https://github.com/simh/simh (available as a zip from https://github.com/simh/simh/archive/master.zip) and confirm if you are still seeing the problems. Also, please identify what telnet client you are using to connected to the DZ ports.
Thanks. - Mark From: Simh [mailto:simh-boun...@trailing-edge.com] On Behalf Of Quentin North Sent: Monday, February 25, 2019 2:54 PM To: simh <simh@trailing-edge.com> Subject: [Simh] pdp10 mux and clock issue? Hi Im using the pdp10 emulator and running tops10 7.0.4 and Im seeing a couple of issues: - Intermittently a terminal session will issue a TOPS-10 command (say R SUBFIL) and the mux will echo the characters but then the session will not do any output from the system until I go to the CTY and get it to output some characters in user mode (ie outside of OPR console) and then the output will be released on the user terminal. Input continues to be echoed but there is no output until I do something on the other terminal. This seems to happen more on simhv3.9-0 vs simhv4.0-0 but occurs on both. Im not sure if this is a mux problem or an execution problem. - The clock seems to drift slowly backwards. Over the space of a day it appeared to loose about 5-10 mins. Does anyone have any ideas of what may be the issue or what further diagnostics I could do when the problem, especially the paused output problem, occurs? The setup is using CPU IDLE, show config is: sim> show conf PDP-10 simulator configuration CPU, idle enabled, stability wait = 20s, 1048KW, TOPS-10 PAG, 2 units PAG0, 512W PAG1, 512W TIM, address=3760770-3760775, Y2K OS FE, 2 units FE0 FE1 UBA, 2 units UBA0, 64W UBA1, 64W PTR, disabled PTP, disabled RY, disabled LP20, address=3775400-3775417, vector=754, attached to printer.out CR, disabled RP, address=1776700-1776747, vector=254, 8 units RP0, 39MW, attached to disks/t10b.dsk, write enabled, RP06 RP1, 39MW, not attached, write enabled, RP06 RP2, 39MW, not attached, write enabled, RP06 RP3, 39MW, not attached, write enabled, RP06 RP4, 39MW, not attached, write enabled, RP06 RP5, 39MW, not attached, write enabled, RP06 RP6, 39MW, not attached, write enabled, RP06 RP7, 39MW, not attached, write enabled, RP06 TU, address=3772440-3772473, vector=224, 8 units TU0, not attached, write enabled, SIMH format, unlimited capacity TU1, not attached, write enabled, SIMH format, unlimited capacity TU2, not attached, write enabled, SIMH format, unlimited capacity TU3, not attached, write enabled, SIMH format, unlimited capacity TU4, not attached, write enabled, SIMH format, unlimited capacity TU5, not attached, write enabled, SIMH format, unlimited capacity TU6, not attached, write enabled, SIMH format, unlimited capacity TU7, not attached, write enabled, SIMH format, unlimited capacity DZ, address=3760010-3760017, vector=340-344, lines=8, attached to 2020, 8b, 1 connection sim> show ver PDP-10 simulator V3.9-0 [64b data, 32b addresses, no Ethernet]
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