PiDP-8

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Discussion group for the PiDP-8. See the web site for details & documentation.

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Ian Schofield, … David Betz24

Mar 30

PDP8 with OS/8 on a postage stamp

Dear All, It is rather a shame that there isn't a RP2040 on a board with the same pin layout as

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PDP8 with OS/8 on a postage stamp

Dear All, It is rather a shame that there isn't a RP2040 on a board with the same pin layout as

Mar 30

Feb 21

1/2 of my LEDs have stopped working

Found the issue as a failed diode. Thanks to Clem for the suggestion! RKM On Tuesday, February 21,

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1/2 of my LEDs have stopped working

Found the issue as a failed diode. Thanks to Clem for the suggestion! RKM On Tuesday, February 21,

Feb 21

Rick Adams, … timr...@gmail.com7

Feb 12

A few problems, all better now

The makefiles to build all of TSS/8 uses Macro8x to compile the source. It's just as easy to

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A few problems, all better now

The makefiles to build all of TSS/8 uses Macro8x to compile the source. It's just as easy to

Feb 12

Rick Adams, … Vincent Slyngstad5

Jan 30

On Monday, January 30, 2023 at 3:28:23 PM UTC-8 timr...@gmail.com wrote: From what I can tell by

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On Monday, January 30, 2023 at 3:28:23 PM UTC-8 timr...@gmail.com wrote: From what I can tell by

Jan 30

Casey Bralla, Steve Tockey4

Jan 23

PiDP8 simh Software Build Problem

I was able to fix this by manually editing Makefile.in and correcting all the paths to the executable

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PiDP8 simh Software Build Problem

I was able to fix this by manually editing Makefile.in and correcting all the paths to the executable

Jan 23

Mark Lawler, Thomas R.3

Jan 5

Some PDP-8 fun leveraging ChatGPT from Openai

You're having fun, aren't you?!? 😁😂 Mark Lawler <marksl...@gmail.com> schrieb am Do

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Some PDP-8 fun leveraging ChatGPT from Openai

You're having fun, aren't you?!? 😁😂 Mark Lawler <marksl...@gmail.com> schrieb am Do

Jan 5

12/17/22

Hello to all, as you may know there was in the 70s a program called QCHESS - Quigleys Algebraic Chess

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Hello to all, as you may know there was in the 70s a program called QCHESS - Quigleys Algebraic Chess

12/17/22

12/13/22

PiDP11/70 thread on a FORTRAN IV program for radio wave propagation

All, One of the members on the PiDP11/70 group started a thread about some 1960's FORTRAN code

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PiDP11/70 thread on a FORTRAN IV program for radio wave propagation

All, One of the members on the PiDP11/70 group started a thread about some 1960's FORTRAN code

12/13/22

rgsim...@gmail.com, … Peter Long16

11/20/22

Loading Basic on PiDP-8/I

Steve Brilliant - much appreciated Peter --- Original message --- Subject: Re: [pidp8] Loading Basic

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Loading Basic on PiDP-8/I

Steve Brilliant - much appreciated Peter --- Original message --- Subject: Re: [pidp8] Loading Basic

11/20/22

Andrew Herbert, … Ian Schofield14

10/23/22

TSS/8 FORTRAN-D

Thanks, I'll have a poke around the distributed TSS/8 file system and some of the online

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TSS/8 FORTRAN-D

Thanks, I'll have a poke around the distributed TSS/8 file system and some of the online

10/23/22

Andrew Herbert, … William Cattey8

10/15/22

OS/8 Console and keyboard monitor

Ok. Something is definitely not right here. Back when I worked through all the scope/noscope ucase/

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OS/8 Console and keyboard monitor

Ok. Something is definitely not right here. Back when I worked through all the scope/noscope ucase/

10/15/22

Andrew Herbert, … Warren Young6

10/15/22

Throttling problem

On Saturday, October 15, 2022 at 10:14:08 AM UTC-6 andrewjam...@gmail.com wrote: The figure for

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Throttling problem

On Saturday, October 15, 2022 at 10:14:08 AM UTC-6 andrewjam...@gmail.com wrote: The figure for

10/15/22

Andrew Herbert, … Steve Tockey7

10/14/22

Hi Steve, Your recipe dug me out of the hole I was in. Thanks for the pointer to the Programming

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Hi Steve, Your recipe dug me out of the hole I was in. Thanks for the pointer to the Programming

10/14/22

Andrew Herbert, Warren Young2

10/12/22

os8-cp location

On Wednesday, October 12, 2022 at 12:18:54 PM UTC-6 andrewjam...@gmail.com wrote: os8-cp isn't on

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os8-cp location

On Wednesday, October 12, 2022 at 12:18:54 PM UTC-6 andrewjam...@gmail.com wrote: os8-cp isn't on

10/12/22

Steve Tockey, Ian Schofield3

9/24/22

Re: [pidp8] OS/8 Hangs

Dear All, Ooops, just seen the above. Sorry Steve, duplicate suggestion!!!! BW, Ian. On Saturday,

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Re: [pidp8] OS/8 Hangs

Dear All, Ooops, just seen the above. Sorry Steve, duplicate suggestion!!!! BW, Ian. On Saturday,

9/24/22

Cid, … Steve Tockey11

9/18/22

pi4 with pi4-gpio-clean not working

According to my tests, as SIMH is starting up it sets address 0100 into the Program Counter, so it

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pi4 with pi4-gpio-clean not working

According to my tests, as SIMH is starting up it sets address 0100 into the Program Counter, so it

9/18/22

Cid, … Warren Young9

9/15/22

Binary OS Images for multi-core corrupt?

In the end, I think my issue was a combination of compression software and bad micro sd reader. I

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Binary OS Images for multi-core corrupt?

In the end, I think my issue was a combination of compression software and bad micro sd reader. I

9/15/22

Andrew Herbert, … Warren Young3

9/15/22

Copy paste in ssh not working for me

On Wednesday, September 14, 2022 at 5:33:39 PM UTC-6 k1mu....@gmail.com wrote: Use the paper tape

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Copy paste in ssh not working for me

On Wednesday, September 14, 2022 at 5:33:39 PM UTC-6 k1mu....@gmail.com wrote: Use the paper tape

9/15/22

Rick Murphy, William Cattey2

9/14/22

Re: [pidp8] SET TTY SCOPE doesn't work

The SET command is specific to versions of OS/8. Can you paste in the start-up message you get that

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Re: [pidp8] SET TTY SCOPE doesn't work

The SET command is specific to versions of OS/8. Can you paste in the start-up message you get that

9/14/22

Mike Katz, … Ian Schofield14

9/4/22

Running Spacewar on the Pidp-8/i with HDMI

Dear Mike, No problem. Altering the keys is easy to do in vc8_remote.c. Make sure you match the keys

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Running Spacewar on the Pidp-8/i with HDMI

Dear Mike, No problem. Altering the keys is easy to do in vc8_remote.c. Make sure you match the keys

9/4/22

8/21/22

PiDP-8/I Spacewar on Pi HDMI Display

Updated information: I have the Pi Console up and running a getty shell on the VT-220 (as 9600 baud).

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PiDP-8/I Spacewar on Pi HDMI Display

Updated information: I have the Pi Console up and running a getty shell on the VT-220 (as 9600 baud).

8/21/22

smp, … Heinz-Bernd Eggenstein33

8/5/22

Help requested to update my software

You're welcome! And now you have two spare USB-serial adapters that you could use , eg to connect

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Help requested to update my software

You're welcome! And now you have two spare USB-serial adapters that you could use , eg to connect

8/5/22

Bill Saltzstein, … timr...@gmail.com52

7/30/22

I am admitting defeat on this 8.25 thing. I have tried many things. First attempt was just to insert

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I am admitting defeat on this 8.25 thing. I have tried many things. First attempt was just to insert

7/30/22

MogensB, … Ian Schofield13

7/19/22

PiDP-8 software on Raspberry Pi 4 not loading OS/8

Thanks Warren, I wasn't aware that this problem had been sorted out. The source I used for

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PiDP-8 software on Raspberry Pi 4 not loading OS/8

Thanks Warren, I wasn't aware that this problem had been sorted out. The source I used for

7/19/22

wmb...@gmail.com, Nick Taylor3

7/16/22

pdp-8 kit for free,

Sorry, but it has found a (local) home. Thanks for the response. On Saturday, July 16, 2022 at 3:24:

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pdp-8 kit for free,

Sorry, but it has found a (local) home. Thanks for the response. On Saturday, July 16, 2022 at 3:24:

7/16/22

Tom Coate, … Enrique Haro6

7/12/22

Newbie issue accessing OS/8

Good to know...... : ) On Sunday, January 2, 2022 at 8:29:25 PM UTC-6 k1mu....@gmail.com wrote: Steve

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Newbie issue accessing OS/8

Good to know...... : ) On Sunday, January 2, 2022 at 8:29:25 PM UTC-6 k1mu....@gmail.com wrote: Steve

7/12/22

Enrique Haro, … Heinz-Bernd Eggenstein4

6/16/22

Prototype: Using the iPhone camera to read punched tapes.

Thx for the link HBE. Very cool. I have seen other projects using Arduino/Raspberry P, but with leds/

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Prototype: Using the iPhone camera to read punched tapes.

Thx for the link HBE. Very cool. I have seen other projects using Arduino/Raspberry P, but with leds/

6/16/22

Clem Cole, Heinz-Bernd Eggenstein2

6/3/22

Fwd: [simh] Announcing the Open SIMH project

I guess one of the most important functions of an open source software repository and development

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Fwd: [simh] Announcing the Open SIMH project

I guess one of the most important functions of an open source software repository and development

6/3/22

David Goncalves2

5/25/22

PiDP-8 For Sale

This is sold - thanks all! On Sun, May 15, 2022 at 4:15 PM David Goncalves <davegoncalves@gmail.

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PiDP-8 For Sale

This is sold - thanks all! On Sun, May 15, 2022 at 4:15 PM David Goncalves <davegoncalves@gmail.

5/25/22

Heinz-Bernd Eggenstein, … Mike Katz3

5/20/22

PDP-8 ticker display

Awesome, I would like on also. On 5/20/2022 10:14 AM, AndyB wrote: That is awesome... i need one! On

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PDP-8 ticker display

Awesome, I would like on also. On 5/20/2022 10:14 AM, AndyB wrote: That is awesome... i need one! On

5/20/22

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