On 2013-01-06 20:29, John Wilson wrote: From: "Lee Gleason" <lee.gleason at comcast.net> I'm even more curious what a PDT-11 optimization is doing in an RSX driver...was there at one time an RSX product product planned for the PDT family? I've never met a PDT-11/110 in person. The docs say they were downline-load-only -- so what DID they run? MRRT11? RSX11S would certainly make sense. Also, DEC dumped a lot of the PDTs to their own employees, so maybe someone made a few tweaks to the RSX code for their own evil purposes at home. I'd suspect 11S should work right out of the box. But both the /110 and /130 was Qbus, so I'd suspect them to be pretty straight forward. The one I was thinking of was the /150, which is the one I assumed you were talking about when you talked about the serial chip and DUV-11 emulation, John... Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol