[Simh] pdp-11 id command quirk

Hello, I want to use the pdp-11 sim of simh to teach my kids some machine-language programming. I have it compiled and running on a Linux system. When using interactive deposit in the PDP-11 simulator, it increments by single byte addresses, so you get : PDP-11 simulator V3.8-1 sim id

[Simh] PDP-11 oddity

From: Bob Supnik b...@supnik.org It's a bug, and it's fixed in 3.8-2: 05-Jan-11RMS Fixed bug in deposit stride for numeric input (John Dundas) If you want to edit the code, the fix is in dep_addr: GREAT! Thanks! Jon ___ Simh

[Simh] OT: need tape drive solution

Hello, I know this is slightly off-topic, but this group might know who/what/how to move ahead with this. I have some old CDC Keystone tape drives. I have verified that at least one of them still works. years ago at work we scrapped a Cipher 990 1600/6250 streaming tape drive that was the

[Simh] Mag tape interface

Well, I am now really close to having a mag tape drive working on a Linux system. The docs confused me, so the bit ordering is backwards. That will be easy to fix. It is not detecting file marks, they just show up as zero-length records. I'll have to track that down. What I will do next is

Re: [Simh] Mag Tape Interface

From: Al Kossow a...@bitsavers.org Is there any particular reason you are inventing ANOTHER tape container format? Well, because I figured out how to do it. Is there a place where this format is documented? Is it compatible with Linux binary files? This scheme is really minimal.

[Simh] Reading VMS Backup tapes on Linux

Well, for those NOT running VMS in simulation, but wanting to get at some archival programs, I finally figured out how to make vmsbackup work. First, you need to extract the backup save set from the tape container file, so it is just a stream of bytes, without the block size and file mark

Re: [Simh] Simh Digest, Vol 117, Issue 4

Date: Thu, 05 Sep 2013 12:02:04 +0200 From: Johnny Billquist b...@softjar.se To: simh@trailing-edge.com Subject: Re: [Simh] single cycle stepping for pdp11 Message-ID: 5228569c.3060...@softjar.se Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 2013-09-05 07:15, Mark Pizzolato -

Re: [Simh] Regarding Cutler THE father of VMS myth

From: Sergey Oboguev obog...@yahoo.com To: Dennis Boone d...@msu.edu, SIMH simh@trailing-edge.com Subject: Re: [Simh] Regarding Cutler THE father of VMS myth Message-ID: 1425509240.5193.yahoomail...@web184302.mail.ne1.yahoo.com Content-Type: text/plain; charset=us-ascii VMS team had to make

Re: [Simh] Simh Digest, Vol 139, Issue 23

Message: 1 Date: Fri, 21 Aug 2015 12:45:43 -0400 From: Chris Van Brederode cvanbreder...@gmail.com To: simh@trailing-edge.com Subject: [Simh] Odd Question on CP/M and sector sizes Hello, I'm working on coding my own 8080 emulator (as an exercise/hobby) and I've gotten to the point where I

Re: [Simh] VAX vectors

From: Clem Cole cl...@ccc.com To: SIMH simh@trailing-edge.com Subject: Re: [Simh] VAX vectors Message-ID: CAC20D2MR_YovEFCR-rzbRhcvExdzwGpoQHOccT3t4KC=sft...@mail.gmail.com Content-Type: text/plain; charset=utf-8 On Thu, Jul 9, 2015 at 4:53 PM, Richard legal...@xmission.com wrote: VAX was

Re: [Simh] Graphics Terminals and Graphic System Phototypesetters

From: Christian Gauger-Cosgrove To: SIMH Subject: Re: [Simh] Graphics Terminals and Graphic System Phototypesetters That might be the case for most CRT based phototypesetters, but may I direct the groups attention to:

[Simh] TE16 CRC Errors

On 11/07/2017 07:36 PM, simh-requ...@trailing-edge.com wrote: In RSX land, only M+ supported mixed massbus, as you mention. Not sure when/if VMS did. Not sure how much of anything else that might have supported it either. I am pretty sure VMS would permit such a configuration, but it would

Re: [Simh] Simh Digest, Vol 169, Issue 36

On 02/08/2018 11:21 AM, simh-requ...@trailing-edge.com wrote: assign(g,t); reset(g); assign(h,u); rewrite(h); while (not(eof(f))) do begin OK, looking back at my VMS Pascal programs, it seems the OPEN statement is used to open a file, not assign. So, you would have :

[Simh] anyone know how to convert/translate turbo pascal to vax pascal?

On 02/07/2018 05:57 PM, simh-requ...@trailing-edge.com wrote: [Simh] anyone know how to convert/translate turbo pascal to vax pascal? Message-ID: Content-Type: text/plain;

Re: [Simh] Simh Digest, Vol 185, Issue 5

On 06/21/2019 11:40 AM, simh-requ...@trailing-edge.com wrote: Message: 1 Date: Fri, 21 Jun 2019 17:39:38 +0100 From: To: Subject: [Simh] Scrambled text in VAXStation 3100m38 GPX graphics screen Message-ID: <003301d5284f$eb0db850$c12928f0$@btinternet.com> Content-Type: text/plain;

Re: [Simh] Simh Digest, Vol 185, Issue 19

wrote: Rolm & Haas made a militarized Nova-compatible minicomputer called Rohm & Haas made Plexiglas, and had nothing to do with the Rolm corporation, which made phone switches and military computers. Jon ___ Simh mailing list

Re: [Simh] Simh Digest, Vol 187, Issue 12

On 08/13/2019 04:19 AM, simh-requ...@trailing-edge.com wrote: From: Ray Jewhurst Has any ever thought of writing simulators for the two missing systems, the PDP-5 and the PDP-12? The PDP-5 is almost identical to a PDP-8, except the program counter is in memory location zero. The PDP-12 is