Pete Turnbull wrote:
On Jun 10,
20:38, SHAUN RIPLEY wrote:
I have a question about BOOT ROMS. Does a MSCP
compatible disk controller need a boot rom to boot
from a HD connected to it? I am ingorant about this
issue.
Yes, it does. For Q-Bus machines, the processor card (if it's a
quad-height, ie KDF11B or KDJ11B) should have boot ROMs that can handle
MSCP, though the older ones might not behave well with bigger/later
drives. The MXV11B-2 boot ROMs can do it, and they also fit the
MRV11D. DEC boot ROMs may not always work with third-party MSCP
controllers, but such 3P controllers often have their own boot ROMs.
You could enter an MSCP boot via ODT, but it's VERY long!
Jerome Fine replies:
Here is the MSCP boot code from the System Release Notes of V05.00
page 4-9 in Chapter 4:
76000 5000
76002 12701
76004 172150
76006 12704
76010 76156
76012 12705
76014 4000
76016 10102
76020 10022
76022 5712
76024 100770
76026 31205
76030 401
76032 42125
76034 1772
76036 14412
76040 6305
76042 100367
76044 105744
76046 1002
76050 10704
76052 5007
76054 5002
76056 5022
76060 20227
76062 17204
76064 103774
76066 105237
76070 17101
76072 10037
76074 17110
76076 111437
76100 17114
76102 114437
76104 17121
76106 12722
76110 17004
76112 10522
76114 12722
76116 17104
76120 10512
76122 24242
76124 5711
76126 5712
76130 100776
76132 5737
76134 17016
76136 1742
76140 0
76142 20402
76144 4400
76146 1
76150 0
76152 17204
76154 100000
It took about 4 minutes to type in here (not including the
address).
If really interested, we can provide the equivalent instructions
in MACRO-11.
I seem to remember that the drive size is NOT a problem.
However, the above code is ONLY for physical UNIT=0
on CSR=172150, so there is NO choice as to what the
user wants. It would probably be trivial to allow other
UNITs and CSRs.
Sincerely yours,
Jerome Fine
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