Please note that this is a copy of Peter Broadribb's Boulderdash website. He has disappeared off the internet (unfortunately), and this copy here is not updated anymore (also unfortunately).

Here you can find information about obsolete and rather current processors and co-processors.

There are three criteria met by the computers listed here: They were, with a very few exceptions, built before 1985 (which classifies them as antiques in the computer world), they were built primarily to be used by individuals or very small groups and they were built to be ...

This page, is dedicated to the Memotech MTX computer, a good old homecomputer, from the early 80's. From a time, when 32k was enough, and 64k was for the ones, who must have bigges!. In this homepage, I have tried to put all the stuff I could think of, to help for those out there, still using this old computer.

On these pages you find a wealth of technical information on the MSX computer. Service manuals, user guides, datasheets are what is collected in the Technical info pages.
Expanding and experimenting with a MSX computer is easy: the enhancement section tells about memory mappers, speed updates, upgrades to MSX 2+ and much more. Fun enhancements of the MSX.
Programming becomes ...

PSF (Portable Sound Format) is a simple, flexible format for emulated music on a variety of 1990s-era and later game systems. PSF brings the functionality of other formats such as NSF, SID, SPC, and GBS to more modern consoles and arcade systems. By using the original music driver code from each game, sequenced music can be played in a perfectly authentic, and size-efficient, way....