A latency-hating emulator of: the Acorn Electron and Archimedes, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, early PC compatibles, Sega Master System, Sinclair ZX80/81 and ZX Spectrum.

ZEsarUX - ZX Second-Emulator And Released for UniX

ZX81 emulator for Raspberry Pi Pico

A .Net-based Cross-Assembler for Several 8-Bit Microprocessors

A tribute repository for the Sinclair ZX81 homecomputer. Or... how I build my own zeddy.

This is the original 1982 BASIC Source code for the classic text-only Football Manager game by Kevin Toms.

Sinclair ZX81 schematics (kicad)

Arduboy clone of the ZX Spectrum classic Jet Pac

Tiny MCUME esp81 ttgo vga32

fig-Forth for modern and retro platforms.

Organize and manage your emulator files for ZX Spectrum, ZX81, ZX80 & Lambda 8300 - powered by the web

Gomoku

This project is a collection of hardware projects for Sinclair ZX Systems (ZX81, Spectrum)

40 Years after the Sinclair ZX81 was released this project aims to preserve the first 4 chip computer

Programs for ZX81. Mostly in BASIC.

This is a Z80 Emulator applied to a ZX80 rom

Make a chargen file (character generator ROM) from an 8x8 text file with 512 characters

Functions for semigraphics similar to ABC80 (setdot, clrdot, dot), TRS-80, TeleText, Text-TV, & Viewdata using 3x2 blocks, and ZX81 (plot, unplot) using 2x2 blocks.

A Sinclair ZX80 / ZX81 / Timex Sinclair 1000 emulator using SDL

A simple USB keyboard based on the ZX81 matrix