[Simh] pdp10 mux and clock issue?
Quentin North
quentin at quentin.org.uk
Mon Feb 25 18:49:12 EST 2019
Hi Mark
Now using latest simh, I am experiencing the same problem with DZ, and if anything it might be worse in the sense that character output seems very slow even when working as expected. Config and ver as follows, telnet client is a linux mac port:
sim> show conf
PDP-10 simulator configuration
CPU idle enabled, Serial: 4097 (default)
1024KW, TOPS-10
PAG 2 units
PAG0 512W
PAG1 512W
TIM address=3760770-3760775
Y2K OS
FE 3 units
FE0
FE1
FE2
UBA 2 units
UBA0 64W
UBA1 64W
PTR disabled
PTP disabled
RY disabled
LP20 address=3775400-3775417, vector=754*, BR4, DAVFU not ready
6 LPI
attached to printer.out
CR disabled
RP address=1776700-1776747, vector=254, BR6, 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, BR6, 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*, BR5, lines=8
attached to 2020, 8b, 1 current connection
XU disabled
DUP disabled
KDP disabled
DMR disabled
CH disabled
sim> show ver
PDP-10 simulator V4.0-0 Current
Simulator Framework Capabilities:
64b data
32b addresses
Threaded Ethernet Packet transports:PCAP:TAP:NAT:UDP
Idle/Throttling support is available
Virtual Hard Disk (VHD) support
RAW disk and CD/DVD ROM support
Asynchronous I/O support (Lock free asynchronous event queue)
Asynchronous Clock support
FrontPanel API Version 12
Host Platform:
Compiler: GCC 4.9.2
Simulator Compiled as C arch: x64 (Release Build) on Feb 25 2019 at 23:20:49
Memory Access: Little Endian
Memory Pointer Size: 64 bits
Large File (>2GB) support
SDL Video support: No Video Support
RegEx support for EXPECT commands
OS clock resolution: 1ms
Time taken by msleep(1): 1ms
OS: Linux hp2000 3.16.0-7-amd64 #1 SMP Debian 3.16.59-1 (2018-10-03) x86_64 GNU/Linux
git commit id: fa10e1de
git commit time: 2019-02-23T16:46:25-08:00
sim>
> On 25 Feb 2019, at 23:09, Mark Pizzolato <Mark at infocomm.com> wrote:
>
> Hi Quentin,
>
> Please try using the latest code from https://github.com/simh/simh <https://github.com/simh/simh> (available as a zip from https://github.com/simh/simh/archive/master.zip <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-bounces at trailing-edge.com <mailto:simh-bounces at trailing-edge.com>] On Behalf Of Quentin North
> Sent: Monday, February 25, 2019 2:54 PM
> To: simh <simh at trailing-edge.com <mailto:simh at 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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