Sinclair ZX80 / ZX81 / Z88 Forums

Name of Software: Slicer Author: Adrian Pilkington Release Date: 19th March 2023 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 1K Description: A fast paced avoid the moving walls type game. Wriiten in assembly and runs in 1K. :? Screenshots: see attachment chrome_screenshot_1679240719384.png D...

Name of Software: Fly Low Hit Hard Author: Adrian Pilkington Release Date: 10/12/2022 Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 16K I've got a few zx81 games I've written and posted on itch.io if anyone's interested? They are only block graphics but written in assembly so run fast. This on...

The save signal that comes from the ZX81 is VERY WEAK. I don't know which equipment you are saving to, but some newer equipment might just ignore the signal. Hi, yes have heard several people say this save signal is weak. I was trying initially to save to a wav file on a PC using just the standard ...

I recently got a Hantek DSO5102P from amazon and already used it to help repair a Speccy which wouldn't load from tape and debug a zx81 composite mod. I'm fairly new to using a scope but is easy to setup and works really well. I wouldn't be without it now and can't wait to get another "for spares" o...

Hello sinclairzxworld, As my topic says in the early 80's I was too young to own a zx81 being only 3 years old in 1981, but my older brother briefly had one before he upgraded to a Speccy. My first 8bit computer was a c64c in 1988 long since gone but it did start the seed for programming which is wh...

There's this excellent document on saving RAM: https://www.zx81.nl/dload/zx81-memory.pdf