Search found 25 matches

by sboisvert
Thu Jun 17, 2021 5:35 am
Forum: Sinclair Misc
Topic: ZX81 Patent Posters
Replies: 4
Views: 635

Re: ZX81 Patent Posters

Shaun_B wrote: Wed Jun 16, 2021 10:50 am I'm wondering why the poster is dated 1984? The ZX81 was launched in March of 1981. Am I missing something?
I believe it's the publication date, according to this site.
by sboisvert
Fri Jun 11, 2021 11:41 pm
Forum: SALES
Topic: Sold - Issue one PCB working but with large heat sink on ULA
Replies: 6
Views: 486

Re: For sale - Issue one PCB working but with large heat sink on ULA

Lardo Boffin wrote: Fri Jun 11, 2021 4:15 pm the ULA has a large heat sink attached which I doubt can be removed
You sure that's a heatsink and not simply a handle/puller? :lol:
by sboisvert
Mon May 31, 2021 12:12 am
Forum: Sinclair Misc
Topic: ZX81 Patent Posters
Replies: 4
Views: 635

Re: ZX81 Patent Posters

GCHarder wrote: Sat May 29, 2021 8:08 pm teeash.com
Given some of the T-Shirt designs they sell on there, this is not exactly a company I'd buy products from, personally.
by sboisvert
Mon May 03, 2021 5:36 am
Forum: Development
Topic: ZX 81 development on Linux. What tools?
Replies: 11
Views: 1366

Re: ZX 81 development on Linux. What tools?

Hi, I'm a Linux user, I would like if there's a tool setup for do the following: 1. Write Assembler code (or BASIC code) in a reasonable way and export the code to an emulator to test. 2. Export stuff from the emulator to a .tgz file (or a .p file) in order to get the stuff working in the ZX 81 Tha...
by sboisvert
Mon May 03, 2021 2:53 am
Forum: Development
Topic: Getting started - need toolkit!
Replies: 9
Views: 1344

Re: Getting started - need toolkit!

I've started looking into this recently as well. For non-platform specific solutions, MS Visual Studio Code might be an option (runs on PC, Mac, Linux), and there's extensions available for Z80 programming. There's also a very capable development extension called DeZog that supports development with...
by sboisvert
Sun Dec 06, 2020 11:05 pm
Forum: Hardware
Topic: tasman centronics interface cable search
Replies: 13
Views: 1916

Re: tasman centronics interface cable search

jojo wrote: Sat Dec 05, 2020 5:39 pm i found software for the spectrum !

BUT , could not find any for the zx81

so if it is a cross platform interface , is there someone out there withthe zx81 software ?? and willing to share
I believe this is what I used with it: Universal Printer Driver
by sboisvert
Fri Dec 04, 2020 8:56 pm
Forum: Hardware
Topic: tasman centronics interface cable search
Replies: 13
Views: 1916

Re: tasman centronics interface cable search

jojo wrote: Tue Dec 01, 2020 4:30 pm label is attached by me and wrong ( is not a zx81 module )
I remember having one of these; and they do work with the ZX81 (though I think it was more sold as a Spectrum interface)
by sboisvert
Tue Nov 03, 2020 12:55 am
Forum: Software
Topic: Drop the PRINT instruction on ZX80
Replies: 8
Views: 1354

Re: Drop the PRINT instruction on ZX80

From what I remember seeing SHREB doing, it's usually formulated like: IF USR MC-ADDR THEN REM <stuff to parse or execute by MC routine> My guess is that the MC function then returns 0, meaning the THEN part never gets executed (which in this case it wouldn't, being a REM , but other tokens could be...
by sboisvert
Tue Nov 03, 2020 12:44 am
Forum: Software
Topic: Drop the PRINT instruction on ZX80
Replies: 8
Views: 1354

Re: Drop the PRINT instruction on ZX80

The command PRINT USR(30000) will come back with 30000. But I want to surpress the printing. How can I drop the PRINT instruction from the stack? Is there good textbook for MC programming on ZX80? Do you absolutely need to use PRINT ? Couldn't you do RAND USR 30000 ? I see now from your other post ...