Clem Cole wrote:
Mark... as an FYI if it is of any help..
VH address=2013E120-2013E15F*, vector=C0-DC*, BR4, lines=64, 4
units
VH0 attached to 8070, DHU mode, Modem
0 current connections
VH1 DHU mode
VH2 DHU mode
VH3 DHU mode
device dhu0 at uba? csr 0160440 vector dhurint
It's been years since, I did this stuff...
1. 0160400 is 0xE120 and 0160400 certainly looks right for the
Unibus address for a DH.
I'm getting 0xE100 - what am I missing? Not awake enough today ;)
2. I just can not speak for 0x2013E120 as what is the mapping into
the Vax address space, but I'll take your word for it that this is
correct - that is correct.
3. I never saw a real DEC DH on a Vax because of power and space issues.
4. That said, we used to mix DEC DH11s and Able DH11's on the PDP-11
all the time
5. Able DH11's were the most used serial controllers in BSD UNIX land
for a long, long time, which is why the default BSD configs all
probe for them.
So ...If the DHV is supposed to the simh emulation of the combination of
a DEC DH11 and DM11 pair (the DM11 was the modem control option for the
DH), then this should "just work"
That said, I'm not sure if VMS supported real DEC PDP-11 DH11/DM11's in
Vaxen. I have to believe they would have, but maybe not. So its
possible this has not been tested by folks. I see that a lot of people
running simh seem to want to use DZ's.
I have not tried the vax simulator a long time - although when I first
tried it, it was DZ only. You pointed me at the VH emulation a few
years ago, but I did not push it very hard.
Thanks,
Clem
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