Page 1 of 8
Pascal for ZX81
Posted: Mon Nov 23, 2020 3:39 pm
by mrtinb
Hi
https://archive.org/details/your-comput ... 9/mode/2up
This article mentions Pascal for ZX81. Has anyone seen, used it, or have a copy?
Re: Pascal for ZX81
Posted: Mon Nov 23, 2020 5:05 pm
by jdfan1000
I've never seen that but I'm on the other side of the pond.
In the US,
Semper Software's Partial Pascal ran on the ZX81.
Re: Pascal for ZX81
Posted: Mon Nov 23, 2020 6:37 pm
by Moggy
Partial pascal readily available but unfortunately no manual.
Re: Pascal for ZX81
Posted: Mon Nov 23, 2020 9:22 pm
by mrtinb
I guess no one has figured out what commands exist on the 3 letter prompt.
From reading all the articles, it seems programs only run within the Pascal environment

.
Re: Pascal for ZX81
Posted: Wed Nov 25, 2020 12:07 am
by jdfan1000
Have not tried it. I have figured out who wrote it, going to reach out to him soon.
Semper went on to make Modula-2 for the Mac.
Re: Pascal for ZX81
Posted: Wed Nov 25, 2020 12:28 am
by Aurelbois
Re: Pascal for ZX81
Posted: Wed Nov 25, 2020 4:25 am
by mrtinb
Aurelbois wrote: ↑Wed Nov 25, 2020 12:28 am
Here is some info about it:
I know Pascal. That’s not the issue.
The problem is this implementation gives you a 3-letter prompt, Nothing happens no matter what I type. This software seems useless without it’s manual.
I’ve looked through the binary both in ascii and zxscii. There’s not recognizable words.
I have not tried all 110000 combinations of the 3 letters.
Re: Pascal for ZX81
Posted: Sun Feb 07, 2021 10:10 pm
by stefano
that's becoming an interesting mystery, there are several references in archive.org talking about this product, but no clue on how actually using it
This article looks promising, though:
I'll try typing 'PRO'..
edit: I just discovered this link:
https://www.timexsinclair.com/product/partial-pascal/
Re: Pascal for ZX81
Posted: Sun Feb 07, 2021 11:33 pm
by stefano
one more doubt: Control Technology seems to have had a PASCAL language for the ZX81.
Semper Software was clearly advertising a simplified PASCAL subset specific for the ZX81.
They could have been 2 separate products.. but also a simple reselling operation.
Re: Pascal for ZX81
Posted: Mon Feb 08, 2021 6:48 am
by mrtinb
As stated before. I’ve seen all the ads. But no one has the manual.
The software is useless without the manual. It requires 3-letter commands that no one can guess.