Sinclair ZX80 / ZX81 / Z88 Forums

From Compute! July 1983.

BASIC tutorial to draw circles, not mentioned in the article but it's quite easy to modify to draw squares and diamonds as well.

I've included a standard, WRX and Pseudo-Res versions.

Regards;

Greg

Cool !

Thanks Greg.

I'm trying to draw XANA from code lyoko. What values should I use?

Great find! I decided to take the BASIC and convert it to z80 assembly. The routine is super fast, so I turned it into a screen saver of sorts. Even has Chroma support. Love these kinds of challenges.

Screen Shot 2022-09-01 at 1.12.10 AM by Steven Reid, on Flickr

Is that an Atari 800 font in the PSI version? So cool

GCHarder wrote: ↑Fri Oct 30, 2020 9:42 pm From Compute! July 1983.

BASIC tutorial to draw circles, not mentioned in the article but it's quite easy to modify to draw squares and diamonds as well.

I've included a standard, WRX and Pseudo-Res versions.

That is a custom font developed by Paul Farrow specifically for PSI-Res applications. See his "Celebration"' demo.
Greg