Sinclair ZX80 / ZX81 Forums

SirMorris hasn't been here since April, so don't hold your breath.

USCII is very cool.

If you rather like vector graphics, you can download a Basic variant: HRG-ms from Mathias Swatosch, where you use commands like:

LINE,x,y,x,y
LINETO,x,y
BOX,x,y,x,y
CIRCLE,x,y,r
POLY,x,y,x,y,x,y...

As everyone loves their ZXpand, so there is only one option. Make a notification on SellMyRetro for the keyword ‘ZXpand’, and you will be notified when the next batch is for sale.

With this software you can create 25 custom characters. So this is not full graphics for the whole screen.

Download the demo game dogcatch.p, and modify it with your own custom characters. Start to get comfortable with this. After that you can modify the game from there into your own ideas.

Very impressive.

I can't find any info on your page, how to connect VGA or HDMI.

It should be noted that many of the beginner computer books from Usborne Publishing from the 80'ies can be downloaded freely from their page: https://usborne.com/browse-books/features/computer-and-coding-books/ Half down the page under the subtitle 'Usborne 1980s computer books' you can download PDF...

The online version I linked to, should have all the typos corrected.

I don’t see any sarcasm.

I would recommend the book Machine Code for beginners, that learns both Z80 and 6502 machine code for any 8-bit micro. Or Mastering Machine Code on Your ZX81 that specifically targets the ZX81.

(One problem with the Lambda 8300 is that it comes with two different ROMs. ROM version 1 is black screen with blinking cursor. ROM version 2 is the text READY, and a blinking cursor. ROM version 2 supports the Lambda Colour Pack if attached. Software made for version 1 won't work on version 2 and t...

https://github.com/z88dk/z88dk/wiki/Pla ... ware-hints

Below the description of the two germanium diodes is a description of doing the same hack with 7408 AND gate.