if you are still up, feel free to call. On Sun, Sep 25, 2016 at 9:52 PM, devin davison <lyokob...@gmail.com> wrote:
> Thanks for all the helpful information. The machine looks to be working. I > found a few different key in programs. I can get to the console emulator > prompt on the attached vt100. I keyed in a few short programs to write to > the vt100 and they worked as expected. One step closer. I am about to > install the disk drive controller and connect the drive, i do have a bunch > of disks labeled for rsx, what is the procedure for booting off of a disk > pack? > > On Sat, Sep 24, 2016 at 4:11 AM, Don North <ak...@mindspring.com> wrote: > > > On 9/23/2016 6:15 PM, Paul Popelka wrote: > > > >> You might try looking at the M9312 proms that Don North has made > >> available here: > >> http://www.ak6dn.com/PDP-11/M9312/ > >> > >> If you have an M9312 in your system it will have the basic console prom > >> in it. > >> There are listings of the prom contents on that web page. > >> > >> There is also a simple diagnostic prom that loops forever near the > bottom > >> of the page. > >> If you don't have an M9312 then you could probably key in a program from > >> the rom listings provided. > >> > >> I'd bet Don will be along shortly to provide a better explanation. > >> > > > > Basically correct. The 'ZZ' pseudo boot PROM I generated just runs the > > basic diagnostics contained > > within the associated 248F1 11/04-34 console PROM in a continuous loop. > > > > The diagnostics are very simple, and do a number of datapath and register > > checks, as well as a low memory > > (0-28KW) write/read/check confidence test. > > > > Not comprehensive by any means but having the diag in PROM and not > reliant > > on any peripherals (except > > the console TTY interface) is sometimes a very useful starting point for > > system debug. > > > > If anyone wants one of the programmed console PROMs (a 256x4 82S129) > > programmed with the ZZ pattern > > just ping me at the email address shown on the above mentioned website > (or > > this post). > > > > I can also provide programmed 82S129 devices for any of the other > > available DEC boot PROMs should anyone > > need one. > > > > Cost will be free for low quantities (ie one or two for personal use). > > Cost negotiated for larger quantities. > > > > Don > > > > >