Sinclair ZX80 / ZX81 / Z88 Forums

As some of you may know, I wrote the web-based EMF emulator for the ZX81 (amongst others) It was never intended to compete with all the native emus out there, since they can do a much better job at it that I can with JavaScript, but rather be a proof of concept for myself. Consequently, I have never...

There was a case on hackaday recently (https://hackaday.com/2021/10/15/heres-a-100-mhz-pin-compatible-6502-replacement/) where someone created a pin-compatible FPGA version of the 6502 chip - the same idea could be used to replicate the ROM. (In theory it's simpler, since it's only returning data an...

Name of Software: ZX Adventure Author: Steven Goodwin Release Date: 25/01/2021 (I think) Requirements (eg. 1K, 16K, AY Card, Hi-Res Scheme): 16K Commercial. But will prepare the source for a GPL release at some point Description: Inspired by the classic Atari 2600 game of the same name, this is an a...

Morning all! I've been working/playing with the ZX81 since the early eighties, so thought it about time that I actually sign up and post something here. Not sure what, of course, as it always seems like everyone else knows more than I do! To date I have built the EMF ZX81 emulator (https://em.ulat.e...