z80

The article explores the continued relevance and use of the Z80 microprocessor from the 1970s in contemporary technology contexts.

A hobbyist describes an ongoing project to write a Tetris game for the BBC Bridge Companion, a 1985 Z80-based console, including hardware specs and background.

An article investigates a mysterious REM statement at the start of the 1980 BASIC game The Wizard's Castle, revealing it to be encoded machine code that seeds the random number generator via USR and POKE calls.

A collection of web-based emulators for classic 8-bit computers, including Amstrad CPC, ZX Spectrum, Commodore, and Robotron models, built with Visual 6502 and Visual Z80 Remix.

The Zeal 8-bit Computer is an open-source Z80-based hobbyist computer board, with multiple prototype revisions and a newly released video board add-on.

A comprehensive reverse engineering of the TI-84 Plus OS, documenting memory mapping, paging, system calls, interrupts, floating-point engine, variable system, tokenizer, and I/O subsystems.

A blog post exploring how to use a Raspberry Pi Pico RP2350 with PIO to monitor the address and data buses of a Z80 microprocessor, including timing considerations and clock speed limits.

Boriel BASIC is a modern, open-source BASIC compiler SDK designed primarily for the ZX Spectrum, offering enhanced features, integer types, and inline assembly support for retro game development.