Sinclair ZX80 / ZX81 / Z88 Forums

I don’t know if there is a simple way to disable the internal RAM, but you should definitely not disable anything on the ZXpand, because it is this RAM programs are loaded into.

Someone sold you a ULA and a heat sink. Sinclair ULAs always turns hot, so someone insists on putting a heat sink on. This has been a huge disagreement in this forum, so we don’t want to start that again. The advocates against the heat sink is that there is no air flow in the small case, so the heat...

I've been looking for something that will give me a start on how to use Hires. I've downloaded a few ".p" files but have no idea how to get them working on my Minstrel 3 (which I believe is Hires capable). Has such a beginners guide been published anywhere - my searches tend to turn up highly techn...

Does anyone know if this is open source or closed source?

I like the Steps idea. Maybe you could invent Steps 2. With more puzzles.

Villordsutch has a walk though on YouTube

There are spoilers.

Since I got hold of the manual I've used the weekends to play with and investigate Partial Pascal. I wondered if the object code generated with Partial Pascal was machine code with calls to a Pascal library, or tokens that needed an interpreter. The below listing contains 3 prints: First is output f...

I'm not going further with this. I have other projects.

Nope. Can't remember where I hit a wall.

If you wan't an interface for User Defined Characters (UDG), there is also the Chroma interface, which supports color and scart video output on top of that.

Unfortunately it's also sold out at the moment.