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LC-81 Homebrew Minicomputer



Introduction

This project is about designing, building, programming and utilizing a mini-computer based on Zilog Z80 microprocessor.

Operation

This section covers the operation of the Master Controller (MC) and the other different units that comprises the LC-81 minicomputer.

Hardware

This section describes the computer's hardware in great details including theory of operation and schematics of the different LC-81 units.

Software


LC-81 Software is currently in its infancy. It is being written in assembly language using an Linux PC as developer machine (it was done in a MS-DOS PC before).

Applications can vary from stand-alone programs taking control of the whole machine, to better structured ones relying on system software existing in the MC-EPROM or previously loaded into RAM.

A primitive operating system (LCCP) is currently under development.

Specs

This section contains specs for current and future developments, written ahead of time with the purpose of mature ideas before getting into implementation.

Facts

This section summarizes technical information for quick reference. Latest listing and schematics can be found in here.

Pictures

References

An incomplete list of books and external links consulted during the development of this project.

Other Homebrew computers

An incomplete list of similar projects made for other people around the Globe.

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