VAX microcode (was: VAX-11730)

Johnny Billquist bqt at
Thu Feb 7 06:09:32 CST 2008

Ethan Dicks <ethan.dicks at> skrev:
>>   Because everything about the KA730 microcode was "soft", it's fairly easy
>> to change the CPU microcode, update the console TU58 and reboot to change
>> the CPU behavior.  I believe DEC even sold a set of microprogramming tools
>> for the 730, but I've never seen them and I don't know what's become of them
>> today.
> Back in the day, I remember occasionally seeing docs on PDP-11 microcoding,
> but I don't recall seeing anything for any model of VAX.

I have the documentation for the VAX-86x0 micromachines... And I have the hardware.
Want to do something? :-)


Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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