I would very much read that blog if you write it. ~Daniel
On Mon, Oct 5, 2026, 16:29 Bill Degnan via cctalk <[email protected]> wrote: > I may have some spare massbus cards available to trade for something of > equal use value if your or anyone is interested in haggling a deal offline > Bill > > On Mon, Oct 5, 2026 at 6:26 PM Jim Bender via cctalk < > [email protected]> > wrote: > > > > > > > It's been a while since my initial posting about this project but it is > > time > > for an update. > > > > This has been mostly a spare time project, and you know how life tends > > gets in > > the way sometimes... > > > > The work itself has been a bit of a "maze of twisty little passages, all > > alike" with many potholes and obstacles, but progress has been made. > > > > The video below tells the tale: > > > > https://youtu.be/KwaNschJg6w > > > > > > Synopsis: > > > > A real PDP-11/70 boots RSTS/E V10.1 through it's unmodified RH70 > controller > > with the data coming from the Massbus emulator. > > > > Operation is rock solid and so far have not been able to break it. It > > also > > passes the ERHAE1 XXDP diagnostic without errors. > > > > We now have a viable option for modern storage for Massbus systems. > > > > Still to do is performance optimizations, hardening against some edge > > cases, > > and a large amount of code cleanup. > > > > I only have a PDP-11/70 to test with, but it *should* work with any > Massbus > > system. Adherence to the DEC Massbus Specification was strict and every > > attempt made to make it behave as a proper Massbus device rather than > just > > coding things to make the RH70 happy. > > > > I am kicking around the idea of putting together a blog chronicling the > > various trials, tribulations and milestones encountered along the way if > > anyone is interested in reading the gory details.... > > > > > > Cheers! > > Jim > > > > > > > > > > > > >
