Copy protection is designed to keep people from making copies of a disk. Because of the complexity and hidden aspects of copy protection, most people have little or no idea how this protection works. The "Tome of Copy Protection" is designed to help you understand what is going on with your protected Apple II disks, and possibly show you how to copy them, or create your own copy protection scheme. The principles discussed can be applied to other computer systems. Highlights Include Detailed discussions of Disk II Mechanics, Disk Structure, Reading and Writing Data, Analyzing Bits, Bit Insertion, Invalid Bytes, Nibble Counting, Nibble Editor Configuration, Self Sync, and the Elusive Sync Bit. Features source code, documentation and tips for over 25 unique programs such as NYBBLER a multifunction nibble editor. Forwards included from legendary game developer John Romero, plus disk guru and Applesauce creator John Morris.

Binding: Paperback;394 pages; Publisher: Lulu Press, Inc.; Classification: N/A; Weight: 1031.72 g; Dimensions: N/A

Something not quite right? You have 21 days from the day you receive it, to send something back. When you purchase Debenhams Deliver+, you will have an extra 14 days on top of our standard 21-day window to initate a return.

Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

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