Hopefully a useful app for PiDP users!

[John Kennedy]

I wrote an app that provides a reference to the PDP series opcodes, and some other information.

It's currently in the Apple TestFlight program for beta testing. Here's the link:

https://testflight.apple.com/join/nTcrH9mf

I would love it if you could try it out, and let me know of the errors I've made.

thanks!

--John

p.s. it covers PDP-1, PDP-8, PDP-10, PDP-11 and Vax. 

p.p.s. There is another version for 8-bit CPUs like the Z80 here: https://testflight.apple.com/join/e3nSMedK

[Shane MacPhillamy]

Hi John

I’m running the latest version of iOS on an iPhone 17. Test flight says I need to a later version of iOS.

Cheers, Shane

On 9 Mar 2026, at 10:29 am, John Kennedy <johntk...@gmail.com> wrote:

I wrote an app that provides a reference to the PDP series opcodes, and some other information.

--
You received this message because you are subscribed to the Google Groups "PiDP-8" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pidp-8+un...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/pidp-8/dee79dcc-99f6-4efe-a792-b6475e004c2an%40googlegroups.com.

[John Kennedy]

Maybe retry if you can? I submitted another build that uses iOS 18 as the minimum.

[Shane MacPhillamy]

That installs successfully John, thank you.

Cheers, Shane

On 9 Mar 2026, at 11:13 am, Shane MacPhillamy <rco...@gmail.com> wrote:

Hi John

[John Kennedy]

Thanks for testing!

If there aren't too many issues with the iOS version, I'll look at porting to Android.

[ggrinton]

Hello John.

Looking at the PDP8 instructions, I see that AND correctly gives details for page zero and current page. Other instructions such as DCA, TAD etc refer to page zero twice. I suspect one of the references should be to the current page.

Geoffrey

[John Kennedy]

I've updated the app to 1.3. Please check it out!