I know one person who has one. I think I had a few at one time, but it's been years since I've seen them.
On Sat, Jan 30, 2016 at 2:29 PM, Eric Smith <space...@gmail.com> wrote: > Does anyone have a PDP-11/03 or LSI-11 with the KEV11-C CIS > (Commercial Instruction Set) option? It may have also been known as > DIS (Dibol Instruction Set). It apparently consists of two microcode > ROM chips (MICROMs), 23-004B5 and 23-005B5. > > Last month I posted here about building a circuit to dump the contents > of MICROMs: > https://www.flickr.com/photos/22368471@N04/albums/72157662054690240 > I've dumped the base LSI-11 instruction set chips and the EIS/FIS > chip. I've partially disassembled the former: > https://github.com/brouhaha/lsi11uc > and verified that the latter matches the EIS/FIS microcode source code > provided with the KUV11 writable control store support software. I'd > like to dump the CIS microcode ROMs as well. The resulting dump would > be usable by anyone with a KUV11. I'm contemplating developing a > MICROM replacement board, which would be useful for those without a > KUV11. > > I've made more progress with the WD9000 Pascal Microengine microcode > than the LSI-11 microcode because someone provided a photomicrograph > of the CP2161 control chip and I was able to dump the PLAs. I should > be getting a photomicrograph of the CP1621 control chip of the LSI-11 > soon, and will be able to do the same for it. >
