OS/A65 Computer and Operating System

(c) 1989-1997 André Fachat [Mail] [Homepage]


In 1989, after my first semester at university, I made the first line on the schematics for a small self-designed and self-built computer. This computer, based on the 6502 CPU, has until 1992 become a small computer system. But from then I only occasionally worked on it.

Well, after someone asked me to release it to the public, I decided to overhaul the documentation, translate it to english and put it under the GNU public license. (Which, of course, doesn't hold true for the ported BASIC interpreter. See this file for more.)

[NEW!] Version 1.3.13 has an experimental TCP/SLIP implementation, which is can be used as a client to a fileserver on the other side. Also a simple (and very Alpha, i.e. buggy!) WWW server is included. There is a README for the SLIP stuff.

[NEW!] Version 1.3.12 supports the GECKO computer, a selfbuilt system without MMU. The schematics are also on the site!

Here is a short introduction to what has changed between versions 1.3.10 and 1.3.6g, because this is a more structural change then the one up to 1.3.12.


Well, when I did this project, it was just for fun. But now I find it quite nice. Well, if you know some magazin that would like to publish some of it, I will be glad writing an article or so (if anybody really wants it ;-)
But on the other hand my interests have moved. Occasionally I still work on the project - when I have the time (or take the time ;-)
But after all, I don't really have time for it.


Last modified 14 march 1997 by A. Fachat
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