2016-03-10 18:51 GMT+01:00 Richard Cini <rich.c...@verizon.net>: > Is there a listing somewhere of what versions of RT-11 work with which > CPUs? The Heath H11 uses the LSI-11 which I think is an 11/03 equivalent. > Is there a specific version (or maximum version) designed for this CPU? >
I have been using RT11 v5.3 on a LSI-11/2 (KD11-HA / M7270) machine with RX02 and 64kByte memory. I also tried RT11 V3B / MU-BASIC on this machine booting from RX02. http://www.datormuseum.se/computers/digital-equipment-corporation/pdp1103-l Long ago I ran RT11 V4 on a VT103 with LSI11/2 CPU and dual TU58. It was really very slow. I have the distribution kit somewhere on original TU58 but I am not sure about the state of those cassettes. So I am pretty convinced that the it should work. What about SimH or Ersatz-11? Does your image boot on those simulators if you set the up identical to your setup? I know that SimH had problems booting from TU58 but as far as I remember that should have been fixed. Try the latest SimH on Github. Do you have enough working memory in your system? Have you ran diagnostics? Maybe it is a good idea to create a bootable TU58 with XXDP. If you use SimH you can create your own bootable TU58 without to much effort. I did this when working on my 11/04. Use one of the RL02 images on bitsavers and try to follow the guide I have a bit down on this page: http://www.datormuseum.se/computers/digital-equipment-corporation/pdp-11-04 > I tried v4 using a method I found on-line (modifying with SIMH to make it > bootable as a TU58 image rather than an RK) but it doesn't work so I wanted > to first eliminate the system version as the potential problem. > > Thanks! > > Rich > > Sent from my iPhone Good luck! /Mattis
