root `WRITEUP` Atto-8
Atto-8 A minimalist 8-bit microcomputer with stack-based microprocessor `TODO-TO-DO` Project Readme • Project Files • GitHub Repo The Atto-8 is an 8-bit, stack-based instruction set architecture, microprocessor, microcomputer and software ecosystem rocking fun design decisions like 256 bytes of memory, no conditional jump instructions, and a concatenative assembler. It is a work in progress. Noteworthy features include: it is built from 74HC-series logic chips hand-wired on breadboards with blinkenlights; it includes an attempt at a C99 compiler and C standard library; it runs 2048, tetris and bad applie and it interprets and JIT compiles Brainfuck; it can run in Microsoft Excel.
© 2025 Emilien Breton `Atto-8/WRITEUP.md`

Atto-8

A minimalist 8-bit microcomputer with stack-based microprocessor TODO-TO-DO

Project Readme • Project Files • GitHub Repo

The Atto-8 is an 8-bit, stack-based instruction set architecture, microprocessor, microcomputer and software ecosystem rocking fun design decisions like 256 bytes of memory, no conditional jump instructions, and a concatenative assembler.

It is a work in progress. Noteworthy features include:

it is built from 74HC-series logic chips hand-wired on breadboards with blinkenlights;
it includes an attempt at a C99 compiler and C standard library;
it runs 2048, tetris and bad applie and it interprets and JIT compiles Brainfuck;
it can run in Microsoft Excel.