In a comment on my Thoughts on DEC post, Tom Miller offered a rat’s ass if I scanned in my VAX 8600 (Venus) Ibox microcode listing.
Well, here’s Venus Ibox microcode v3.73, generated on 7-May-1984. Tom, you owe me one rat’s patootie.
This ran on Venus through the end of 1984. I had transferred to Alan Kotok‘s Simplified Architecture for Fast Execution (SAFE) project, where I was looking into VAX-11 emulation. Large VAX Engineering’s senior management called an “all hands on deck” emergency, and everyone needed do whatever they could to help Venus ship on time. So, I informally returned to work on Venus and ran one of the lab debug shifts. It was equally exhilarating and stressful… An, “I wouldn’t trade those memories for anything in the world,” and, “I hope I never go through something like that again,” experience.
This version ran VMS and oodles of VAX programs. I don’t know if there was a later version; if so, I never heard about it.