On Mon, Nov 21, 2016 at 4:58 PM, Jerry Weiss <j...@ieee.org> wrote: > > > On Nov 21, 2016, at 2:13 PM, william degnan <billdeg...@gmail.com> > wrote: > > > > On Mon, Nov 21, 2016 at 2:37 PM, Josh Dersch <dersc...@gmail.com> wrote: > > > >> Hi all -- > >> > >> I'm finally turning my attention back to my 11/40 (which I started > working > >> on 7 years ago and never quite got around to finishing -- I've learned a > >> lot since then and I'm hoping to be able to debug it properly now). > >> > >> My ultimate goal is to run V6 or V7 UNIX on it -- I have the MMU but I'm > >> looking for an M787 (line-time clock) and M7237 (stack limit register) > to > >> complete the set. I have other DEC stuff for trade, drop me a line... > >> > >> Thanks! > >> Josh > >> > > > > Just curious, are you aware whether these two are required to boot a RL02 > > disk or certain versions of RT-11? I have been experiencing > difficulties, > > I only have the m737 iinstalled in my system. > > Bill > > > RT11 will run w/o an LTC. > > TTBOMR the stack limit register is not need for Single Job and the > other RT11 OS variants. However a program could overwrite the vector area > and cause an ungraceful shutdown. Make sure the jumpers on the KD11-A > are set > correctly for this configuration. > > Using an RL02 to boot RT11 should be okay as well. > > Jerry > j...@ieee.org > > > > Not exactly what TTBOMR is but I can say that given zero luck booting RT-11 from an RL02 on my 11/40 my next move is to emulate a TU58 drive on a 2nd serial card and run XXDP. I can run BASIC with no problem, but it seems like my known working (elsewhere) M7762 RT11 controller card does not wake up when called by the bootstrap 9312 ROM, etc.
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