8 Nov
2016
8 Nov
'16
1:43 p.m.
From: Josh Dersch
If I run them on SIMH configured as an 11/44, I see
the same behavior.
If I run them on SIMH configured as an 11/20, then I get the printout
described in the documentation and listings. ... I haven't yet dug in
to see what accounts for the difference -- any ideas?
The fact that the simulator produces identical results to the real hardware
would argue that it's not a bug in that particular hardware. So it must be
some real difference between the two.
There are subtle differences between the 11/20, and other 11's - e.g. on the
/20 SWAB does't clear the V bit - maybe it's one of them? It might be worth
trying setting the CPU type to other values, and see if it works on any other
machine type.
2) I'm looking for means to format DECtapes on the
TC11. ... The
maintenance manual only indicates "a special program supplied with the
TC11 system," and I haven't managed to find it.
The UNIX V6 distro includes a standalone program, tcf.s, to format DECtapes.
I don't know if you have a running V6 system (real or emulated) to assemble
it one; if you want me to assemble it and provide it as binary (in a variety
of formats, e.g. .LDA format), let me know.
Noel