[volt-nuts] Guide to programming the Hitachi 6303?

David C. Partridge david.partridge at perdrix.co.uk
Mon Apr 23 20:08:28 UTC 2012

I'm trying to understand the floating ROM code for my 7081 (many thanks to Mickle T. for stating the reverse engineering job and pointing me to the right tools).

Why am I doing this?  I want to fix a broken 7081 which is reporting MAINS FAULT on power up.

I am massively hampered in this task as I don't have any experience of assembly programming 6800 or similar CPUs (or indeed any micro processors).  Are there any good resources online I can download, or books I can buy to that will get me on the road.

I know this request may be in vain as this stuff is now considered WAY out of date.

David Partridge

More information about the volt-nuts mailing list