Zilog Z8

Signifying features of the architecture are up to 4,096 fast on-chip registers which may be used as accumulators, pointers, or as ordinary random-access memory (RAM).

series can be programmed and debugged through a single pin serial communication interface.

and newer derivatives also includes a free compiler claiming ANSI C89 compliance.

Primary competitors include the somewhat similar[note 3] Microchip Technology PIC family, and all Intel 8051 descendants.

JTCEMU is a free software (GNU General Public License (GPL) version 3) Z8 emulator written in Java for Linux, Windows, and macOS.