On Friday, October 10, 2003, at 11:41 PM, Bill McDermith wrote:
Ron Hudson wrote:
Jay West wrote:
What OS was I running?
My initial guess was DOS, but I'd suspect HP's standalone RJE station
with
processing happening on a mainframe somewhere else. I actually seem
to have
a pretty extensive library of paper tapes and manuals for the
standalone RJE
system.
Could also be RTE-II... 2100/79xx disk,etc. Had a batch/spool manager
like DOS/DOS-M
so you could spool cards from the card reader and print batch output
on the LP.
Well the algol manual I used was HP's, The plotter library, hp. I don't
think it
was a remote job entry of any kind.
The boot loader was stored at (i think) 102077
(punch this in the
switch register and hit run???)
102077 is generally used as the T register display upon a "good
halt", not a
starting address. So when you ran the boot loader, if it loaded
correctly,
you would get a 102077.
Right. That's the halt code -- actually, the 2100 displays the last
instruction, which in this
case is the halt instruction (1020xx)...
Depending on how much core memory was in the machine, the boot loader
started at x7700 octal, where
x was set depending on the core size. For a 32K machine, x was 7
giving a starting program counter
of 77700 for the paper tape reader boot and 77740 for the disk boot...
(but you knew this part, Jay :-)
> Jay West
>
There was a fatfinger that was about 30 "instructions" long, That read
about a 3 foot paper tape, then
that read the Hard drive...