Sinclair ZX80 / ZX81 / Z88 Forums

I believe GCHarder has made a program, where you have both graphics and programs you can start.

The commander is shown i text mode, and the BMP is viewer in graphics mode.

For your request to work, the program has to be totally in graphics mode, and write the text as graphics.

Feel free to create a file commander with these features and share it here.

I believe the best one is here.

It will work with your own files, and support more hardware.

https://www.weggetjes.nl/jszeddy/jszeddy.html

It seems they are quite rare. I've never seen one on eBay the last 10 years I've collected Sinclair. I don't know if anyone on this forum has one. If they have, they would cherish it, and not part with it.

Always a pleasure to see your work.

Well the main problem with the ZX-Wespi is that you always have to load a menu, and select your program from the menu. That does not work with programs, that loads another file. That is because loading any file will load the menu. However there exist a version of the firmware on the German forum, th...

I bought these.

Please note, that any edge connector has closed sides. That means it will not fit the ZX81. You need to cut off the sides with a Dremel or the like, to connect it to the ZX81.


https://www.aliexpress.com/item/4001146953252.html

Thank you Paul and Mark for your great response.

Hi!

If I'm creating a new circuit to connect to the ZX81 is it possible to:

1. Pull the WAIT signal LOW
2. Update the RAM of the ZX81
3. Release the WAIT signal

and then the RAM is updated by the external circuit.

Is that possible?

Maybe this topic should be moved to the Spectrum section.