M9301-YB Bootstrap/Terminator ROM dumps / listings?
jnc at mercury.lcs.mit.edu
Wed Apr 29 17:58:23 CDT 2015
> From: Jorg Hoppe
> I also have a spare DL11-W to offer
Josh, if you want a second serial line, it's best to use a regular DL11
(M7800), not a DL11-W. (M7800s are available on eBay, for pretty modest
amounts.) The reason is that each DL11-W presents a load on the line clock
signal (from the power supply), even if the line clock on the second board is
disabled; several Dl11-W's, and the line clock signal may get overloaded.
> From: Josh Dersch
> I need to scare up a second SLU so I can get an emulated TU-58 hooked
> up to try booting XXDP
I'm not sure any M9301 variant supports the TU-58? Some are set up to boot
over the console serial line, though. (I haven't yet checked the code, so I
don't know whether you need to feed it the absolute loader first, or if it
will just take .LDA files directly.)
And I just realized you're working with a -YB, and I've been dis-assembling
the -YA! Fat lot of use that would have been! Oh well, I assume the code is
fairly similar, I'll do the -YB next. (Anyone have a dump, to start me off?)
> comparing the diagnostic/console PROM listings to what I have
Where were those from? Thanks in advance...
> From: Henk Gooijen
> I could be wrong, but ISTR that in the first few words of a ROM are the
> two capitals of the boot device that the PROM supports.
Not in the M9301-YA, in either bank.
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