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FlySpy Loading Screen - Amstrad CPC

Let’s Hack… Fly Spy!

In the early days of Hacking, it was rare a protection system would be as memorable as the one created by Richard Aplin, Author of Fly Spy published by Mastertronic. Havking was always a trade of ideas and new techniques. In this post I’ll cover off how to transfer FlySpy to disk that you can follow along.
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Disk on Spec

µPD765A Disc Controller – Primer

The µPD765A was a prevalent Floppy Disk Controller for many a home computer in the 80's. The Amstrad CPC was no exception. This is a primer for Writing Z80 assembler to access the controller direct. that I'll use for later articles on old school hacking. Want to know more?

Amstrad and ZX Spectrum DSK Tool

I found myself needing a command line tool to investigate and extract files from DSK Image files used by Emulators, after archiving my own 1980's hack disks. I wrote my own and made it opensource for you to use, amend or even improve on if it helps your projects.

DiscSys – XOR

DiscSys was a commonly used Disk Protection format in the 80s for the Amstrad CPC. For a protection system it was very basic, relying on modifying track and sector information to non standard formats to prevent copying with the supplied tools. Though it was very trivial to bypass the protection system and copy the disk anyway. Whilst reminiscing about the past, I discovered a small flaw with implementation in the game XOR, here's what I found...