On Nov 17, 2022, at 5:42 PM, rgsim...@gmail.com <rgsim...@gmail.com> wrote:
Looking for some help on getting 8K Basic running on my PiDP-8/I. Back in the old days, circa 1972, I ran Basic on our school's PDP-8/E all the time. Any help appreciated. Thanks. --
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 on the web visit https://groups.google.com/d/msgid/pidp-8/923bb48a-92a6-4618-839d-3603bdb3ecbbn%40googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/pidp-8/33f1511d-4e2f-4374-9603-281e6dc5175an%40googlegroups.com.
It warms my heart to hear that 50 years later someone is looking for Edu-10. I spent the summer of ’72 and some of ’73 working on it, adding immediate-evaluation mode and other fun things.
I showed up for a summer job at the mill and was given the assembly code and a long list of features to add. Mark Bramhall who had moved on to PDP/11 work had originally written it. Getting to use TECO and a PDP/10 for development was a big step forward from my high school’s 8/e with ASR33 paper tape…
All the code was in field 0, user programs were in field 1. Imagine my delight when I found that there were 4 free memory locations left in Field 0. Yup, 4, count’em 4, thanks Mark.
Hmm, if we move this subroutine to Field 1 we can make some space. Hmm, if I move the location of this constant down in page 0, I can use this other instruction that references it as the constant I need for this other piece of the code... I’m particularly proud and horrified at the latter…
Next semester in the compiler course discussion of interpreters the professor said, “of course nobody would ever just code an interpreter that re-read the text during execution.” I raised my hand…
To view this discussion on the web visit https://groups.google.com/d/msgid/pidp-8/CAPdDV0hZcB9pB4-gWNPc_5EKG%3DgnQiRbnJRG7mEM1Q8iKc1%3Dqw%40mail.gmail.com.
Oh, I forgot to mention, part 2…. “Of course nobody would ever code an interpreter that re-read the text from the beginning during execution of a FOR loop to find the beginning of a loop…” Anybody notice that if you moved your FOR loops to the beginning of the program that they ran faster?
To view this discussion on the web visit https://groups.google.com/d/msgid/pidp-8/CAPdDV0hZcB9pB4-gWNPc_5EKG%3DgnQiRbnJRG7mEM1Q8iKc1%3Dqw%40mail.gmail.com.
To unsubscribe from this group and stop receiving emails from it, send an email to pidp-8+unsubscrib...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/pidp-8/1a59af94-fdf8-4b5b-a942-baa3f0fb9543n%40googlegroups.com.
SteveDo you have a convenient link to your EDUSystem 20 (version C) that you would be willing shareThanksPeter
--
You received this message because you are subscribed to the Google Groups "PiDP-8" group.
--- Original message ---
Subject: Re: [pidp8] Loading Basic on PiDP-8/I
From: Steve Tockey <steve...@gmail.com>
To: PiDP-8 <pid...@googlegroups.com>
To view this discussion on the web visit https://groups.google.com/d/msgid/pidp-8/a153e4d0-731c-4232-9889-89a3ae56944bn%40googlegroups.com.