Re: DEC OS/8 Question (getting an error TOO BIG INIT)

I’m just going to guess (I have no experience with this architecture) – would that mean either file corruption – or possibly the last record needs to be padded out with “empty” blocks to be the same size as the others?

RE: VAXmate PSU

I did use a faster timebase, 10us, triggering on the negative edge of channel 2, and it looked identical to this: https://rjarratt.files.wordpress.com/2020/04/primary-side-shutdown-detail-2.png Admittedly the trace you see was taken on the slower timebase and then zoomed in, but there was

VAXmate PSU

onsdag 8 april 2020 skrev Rob Jarratt : > I will look at all the suggestions, particularly of a failure on the > secondary side. Something must have burned up, because there was a distinct > burning smell after the initial failure, although I have never been able to > see any physical damage to an

Re: Help installing HP 2000 contributed library in simh

On Wednesday, April 8, 2020 at 13:42, David Williams via cctalk wrote: > I have some old tapes from my Honeywell 66/60 GCOS days that I > sometimes wonder if I could still get dumped. A number of folks have 800 NRZI/1600 PE/6250 GCR 1.2-inch tape drives connected to PCs via SCSI interfaces that

Re: DEC OS/8 Question (getting an error TOO BIG INIT)

On Wed, Apr 8, 2020, 7:15 PM Vincent Slyngstad via cctalk < cctalk@classiccmp.org> wrote: > On 4/8/2020 12:34 PM, Bill Degnan via cctalk wrote: > > . FRTS > > > > ..dumps me to the * prompt ... > > > > *RKB0:ADVENT.LD [return] > > * [esc] > > > > rather than loading ADVENTURE I get the followin

Re: DEC OS/8 Question (getting an error TOO BIG INIT)

On 4/8/2020 12:34 PM, Bill Degnan via cctalk wrote: . FRTS ..dumps me to the * prompt ... *RKB0:ADVENT.LD [return] * [esc] rather than loading ADVENTURE I get the following result: D.F. TOO BIG INIT MAIN 1740 . Have you seen this? https://tangentsoft.com/pidp8i/artifact/48a782b6930

Re: DEC OS/8 Question (getting an error TOO BIG INIT)

On Wed, Apr 8, 2020 at 2:54 PM Eric Smith wrote: > That stands for "data field too big", i.e., too much data to fit in 4KW. > That's as opposed to "instruction field", which if too big would mean that > there's too much code. > Although I used OS/8 Fortran in the distant past, I never tried to co

DEC OS/8 Question (getting an error TOO BIG INIT)

Hi, I am sure this question has come up before, but can anyone advise an OS/8 change I can run to avoid the following issue (below)? I am unsure if I need to fix my simh INI file or make more space for the program from the OS/8 dot prompt, or FORTRAN * prompt. Running pidp-8i (simh PDP 8i kit) I

Re: Old FORTRAN programs, libraries, graphics

You've seen this, right? http://www.softwarepreservation.org/projects/FORTRAN Lee Courtney On Wed, Apr 8, 2020 at 8:35 AM emanuel stiebler via cctech < cct...@classiccmp.org> wrote: > On 2020-04-06 22:48, Douglas Taylor via cctech wrote: > > Got similar interests here. I've been using PGPLOT o

Re: DEC OS/8 Question (getting an error TOO BIG INIT)

On Wed, Apr 8, 2020 at 1:34 PM Bill Degnan via cctech wrote: > D.F. TOO BIG INIT > I'd really like to understand what this error means if > anyone knows. > That stands for "data field too big", i.e., too much data to fit in 4KW. That's as opposed to "instruction field", which if too big wo

Re: pdp11/05 key?

On Wed, 8 Apr 2020, Joshua Rice via cctalk wrote: Late to the party, but there’s PDP11 keys sold on ebay here: https://www.ebay.co.uk/itm/DEC-PDP-8-PDP-11-Computer-Key-XX2247-Digital-PDP-8E-8I-8L-8S/333296145346?epid=2164686531&hash=item4d99ff93c2:g:nWcAAOSwZtlZ7TIB

RE: VAXmate PSU

I will look at all the suggestions, particularly of a failure on the secondary side. Something must have burned up, because there was a distinct burning smell after the initial failure, although I have never been able to see any physical damage to anything, despite looking many times. But th

Re: Help installing HP 2000 contributed library in simh

On 2020-04-08 00:26, J. David Bryan via cctalk wrote: Assuming that your tapes are sources, there are several folks with operational HP 21xx/1000 computers who probably have paper-tape-reading capability. Dumping the tape to a PC-hosted terminal emulator can capture the text into a host-PC file

Re: pdp11/05 key?

> Late to the party, but there’s PDP11 keys sold on ebay here: Though that may be useful to many, it's the wrong key for this thread. De

Re: pdp11/05 key?

Late to the party, but there’s PDP11 keys sold on ebay here: https://www.ebay.co.uk/itm/DEC-PDP-8-PDP-11-Computer-Key-XX2247-Digital-PDP-8E-8I-8L-8S/333296145346?epid=2164686531&hash=item4d99ff93c2:g:nWcAAOSwZtlZ7TIB

Re: ISO: Documentation for Interphase SMD 2181 disk controller

On Tue, Apr 7, 2020 at 10:29 AM Al Kossow via cctech wrote: > On 4/7/20 10:03 AM, Bill Degnan wrote: > > > Wondering if you can get/inquire from http://retrotechnology.com/#multi > > site. > Manuals are not always listed there, you have to ask. > > Bill > > Herb is on the intel-devsys mailing

Re: Help installing HP 2000 contributed library in simh

On Tuesday, April 7, 2020 at 13:19, David Williams via cctech wrote: > First I want to say again how much I appreciate your assistance. You're very welcome. > Up until now my only experience with this system was as a HS student > first learning to program and never had any access to the system

Re: State of New Jersey needs COBOL programmers

On 4/7/2020 12:31 PM, John Ames via cctech wrote: *That said,* there are definitely some languages that are more conducive to building these habits than others (and, within each group, many that emphasize different aspects more or less strongly.) I can't speak to COBOL as I've never had cause to

Re: Old FORTRAN programs, libraries, graphics

On 2020-04-06 22:48, Douglas Taylor via cctech wrote: > Got similar interests here.  I've been using PGPLOT on the Vax since it > came out, the price was right! > Tried to get it to work with a Tektronix 4207, but something is a little > different between it and the 4105 series. > I was able to get

Re: ICL1501 Cobol manual available

BASIC was all we had - we used COBOL on the ICL VME 2900 maniframes that were backending the 15xx machines. Believe me, if the programming staff had known COBOL was available on the 15xx machines, we would have moved heaven and earth to put it on the micros. So no, not the end-all, and I'm fairly