A curated collection of optimized routines for the Zilog Z80.

A pure JavaScript viewer and editor for ZX Spectrum graphics formats.

Music tracker for AY/YM chips

Asmp (a Selective MLT Picture) realtime graphics image packer for ZX Spectrum 48k and 128k line of computers

Memory protected microkernel realtime operating system for microcontrollers without MMU.

A set of printed circuit boards created by me.

A free, open-source compressor for the ZX0 format

GPU-accelerated minimalist image viewer for creative professionals and advanced users who treat images as assets and graphical resources. Built on SDL3 and Skia.

A catalog of useful and optimized z80 routines!

Source code release for the apEx demotool, actively used for releases between 2014 and 2023

PMD85 v.2A for MISTer

A browser-based ZX Spectrum live-coding environment

A demo for vintage computer Sinclair ZX Spectrum 128.

a multi-system chiptune tracker compatible with DefleMask modules

Prince of Persia reimplementation written in HTML5 / JavaScript

Data compression utility for minimalist demoscene programs.

a ZX Spectrum emulator for the browser

PMD85 core for MISTer FPGA

Vortex Tracker 2.5

ZX Spectrum library routines

Fasttracker 2 clone for Windows/macOS/Linux

ZX Next Z80N assembly tutorial - final target "moving sprite over Layer 2 background"

A demo (demoscene) for ZX-Spectrum 128.

"temporary" fork of ZEsarUX with some fixes of TBBlue (ZX Next) called "ZESERUse" - I don't plan to develop it actively, hoping Cesar will obsolete this by fixing mainline, but so far this is unfor…

Dot commands for esxDOS and UnoDOS3

A set of sources for MB-02+ and MB03+ Ultimate

A React-based UI toolkit for the web

Windows tool for low-level access to any floppy disks, and comfortable high-level access to some legacy filesystems (ZX Spectrum, MS-DOS, etc.).

The assembler / disassembler for the FXM data used in Fuxoft AY music on ZX spectrum 128. With format specs and song examples.