Sinclair ZX80 / ZX81 / Z88 Forums

Seems like I had some real good luck when I just clicked onto SellMyRetro and managed to order a ZXpand on my first try!

I'll probably be keeping an eye out for the AY module as well, depending on price. Is there any indication what they will cost approximately?

Ran it again now with the ;X parameter added - worked like a charm.
Sorry again for missing that this was mentioned in the manual!

Oops! Well, in my defense the ZXpand was so easy to get started with that I didn't find any need to read the manual!

When I test-ran my demo Somwhat Less Limited Capabilities on my newly acquired ZXpand, I noticed that the scroller was completely garbled. I read the data for the font from ROM location 0x1e00 and forwards, and it worked fine when I ran it before using a normal 16kb expansion. Does the ZXpand ROM re...

This might be a stupid question, but I just got my ZXpand (nice piece of hardware btw. - love being able to quickly load my programs) and there's one thing I'm a bit unclear of. Since I like coding demos and stuff, I do have a bit of interest in perhaps getting the AY board addon sometime. But looki...

Since I can't seem to get loading from MP3-player to work on my ZX81 anymore, I think I will need to look into getting a ZXpand perhaps!
Will there be a new batch made anytime?

When you say "final binary" do you mean a .P file? If so, that will include all the system variables, the BASIC program itself, and also the display buffer. I'm not sure of the exact numbers, but I think the system variables will be probably be 30+ bytes, and the smallest possible display buffer - ...

Lately there has been kind of an new fad over at demoscene site Pouet, where people have been implementing the classic TV-noise effect on different platforms, and trying to get it as small as possible. Of course I wanted to give it a shot on the ZX81, you can find my attempt here: TV noise ZX81 by N...

Brilliant, takes skill to produce a great puzzler in less than 1k!

This is very interesting stuff!I took a quick peek at the code, but I guess it will take a while to grasp how it all works. I've been having thoughts on trying to create modes such as 32x16 text or 256x128 pseudo hires for my demos to try to get a bit more processing time compared to "normal" modes,...