[Simh] vax780 bare metal - rq addresses --> rq registers

[Mike Stramba]

What is the relationship / mapping between the addresses displayed
for the SHOW RQ  (disk controller) command and the listed registers in the
vax780 manual ?

E.g  SA, S1DAT, CQBA etc ?

i.e. Does the SA register appear  /  is accessed at 2013F468 ?

S1DAT at 2013F46A  .... etc ?

If so, are those addresses not accessible with EXamine / Deposit ?

sim> ex 2013F468
Address space exceeded

Only from an instruction ?  :

e.g.

MOVW R0,2013F468

sh rq
RQ	address=2013F468-2013F46B, vector=1FC*, BR5, UDA50, 4 units
.....