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bubbo
May 31st, 2015, 01:33 AM
Hi all
Just getting a MZ80K working . Changed capacitors in PSU now computer runs.
Cannot get the cassette to load, Have probed with Oscilloscope and Logic probe
Signal is getting to 8255 but no loading into ram. Got a 8255 on order .
Blown 462532 with new monitor which has many new commands .
What I need now is a detailed memory map of the MZ80K and also some
help on monitor command routines so that I can insert some code to get a
uDrive working on it to bypass the cassette .
uDrive found here http://www.4dsystems.com.au/product/21/116/End_of_Life/uDrive_uSD_G1/
Any help would be appreciated.

Brian

jltursan
June 9th, 2015, 01:09 AM
Check the following:

www43.tok2.com/home/cmpslv/Mz80k/EnrMzk.htm
http://retropc.net/ohishi/museum/mz80k.htm

griffk
July 12th, 2015, 09:04 PM
What I need now is a detailed memory map of the MZ80K
Brian

Well, I can prob get you some entry points and register mapping on the I/O chips, but generally:

RAM 20KB (Expandable up to 48KB) + 1KB (VRAM): 00000H-0BFFFH
ROM 4K : 0C000H-0CFFFH

And I will follow with some specifics..

gwk

mnbvcxz
July 13th, 2015, 03:44 PM
You may find the information here http://mz-80a.com/