Legacy Z-80 Home

Legacy Z-80 Home

"Embedded systems specialists"

Welcome to our Legacy Z-80 home page. Here you will find all of our 8-bit firmware and software for Z-80 based microcomputers -- everything that gave MICROCode Consulting its start on life back in the 1980s. Best of all, everything on here has been released for restricted usage (it's FREE for non-commercial use) with the restrictions listed below. Available on this web site are:

QP/M, a time/date stamping and speedy CP/M 2.2 replacement that fits in the same memory space
Versatile and powerful BIOS ROMs for BigBoard, Xerox 820-I, upgraded Xerox 820-I and II, Kaypro 4, and Kaypro 10 computers
Winchester Connection, a BIOS add-on for supporting hard drives on QP/M or CP/M systems
LinkZ, a faster yet more compact and powerful replacement linker for L80
DebugZ, the most powerful Z-80 visual debugger available
Miscellaneous utility programs that work on any CP/M 2.x, QP/M or compatible operating system

So what are the restrictions? Very reasonable, but worth emphasizing:

You are free to use anything here for your personal use ONLY
Nothing here can be used or sold by any commercial vendor without prior arrangement and agreement with MICROCode Consulting
There is no warranty whatsoever for any item provided here

As a convenience or if you no longer have your Z-80 system, have a little fun by trying these programs on your Windows-based PC using the best Z-80 emulator out there.

And, as with any development extension, there were disagreements on how to handle the Z-80 extensions.