CP/M Howto


History of CP/M
Architecture of CP/M

Using CP/M
Commands and the CCP
Programming with BDOS
The BIOS interface

The Z80 CPU
Architecture of the Z80
The Z80 instruction set

Software Tools
Installing an Emulator
Zip, ark, crunch, and urgh
Editors, Assemblers, Debuggers

Installing CP/M
Assembling a BIOS
Replacing the BDOS
Replacing the CCP

Memory Map
Data Structures

  Howdy and welcome to computing in the 1980's. Yes, this is retro-computing! From a time when men could wear eye-liner, jeans were tight, and Duran-Duran really meant something here comes CP/M.

Take a journey with us back to BIG floppy disks, HUGE clunky keyboards, and TEENY-WEENY memory sizes. Revisit a time when the only colour on your screen was green and you could get temporary deafness just by listing out a program on your line printer.

This page is dedicated to helping you get hands-on experience of microcomputing using CP/M. Here you will find step-by-step instructions on where to get software, how to install it, and how to use it. You can learn how to put together a complete microcomputing system and how to configure it exactly the way you want.

There are huge archives on the net that hold entire operating systems, programming languages, editors, and tools - together with their source code. They are all ready to run in CP/M, a system that is simple enough so that you can understand every single thing it does. Most of this software is free, very well documented, and has been proven to work over many years.

If you want to create your own microcomputing environment, if you like playing with the blood and guts of software, or if you are just into retro then this stuff is for you!

1-Aug-98 0:16:26

Placed in the public domain 1998. Mail any questions to cp-m@apexmail.com

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