bensinc at gmail.com
Wed Nov 19 13:36:20 CST 2014
Thanks! I'll try that out tonight and see what happens. My loader just
takes address/value pairs. It basically just automates me typing them at
the ODT console.
I don't have a memory test yet, but Glen just pointed out a test that I
should be able to run. I should have noticed that earlier since I've been
using that disk image forever.
On Wed, Nov 19, 2014 at 12:39 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
> > From: Ben Sinclair
> > Thanks a lot for your help Noel!
> Sure, glad to help. I'm at just about this stage with my 11/23's, so it's
> > I did write a Ruby program to enter programs in from files via ODT,
> > I can probably run your test that way, assuming it's a set of
> > and values.
> I can do that. Here you go (in Unix assembler, which is somewhat different
> from the DEC one in some syntax details, notably '/' for comment, not ';'):
> br4 = 200
> stack = 2000
> conregs = 177560
> rcsr = 0
> rbuf = 2
> tcsr = 4
> tbuf = 6
> rint = 100
> . = 60^.
> conr; br4 / 1020 200
> . = 1000^.
> test: mov $stack, sp / 12706 2000
> mov $conregs, r1 / 12701 177560
> / mov $rint, rcsr(r1) / 12761 100 0
> mov $rint, (r1) / 12711 100
> 1: wait / 1
> br 1b / 776
> conr: movb rbuf(r1), tbuf(r1) / 116161 2 6
> rti / 2
> (The numbers on the right are hand-assembled octal, but I did put it
> through the assembler to make sure I'd gotten it right. The commented
> out instruction is clearer, but adds one word to the required type-in.)
> Here it is in address/location form:
> 60 1020
> 62 200
> 1000 12706
> 1002 2000
> 1004 12701
> 1006 177560
> 1010 12711
> 1012 100
> 1014 1
> 1016 776
> 1020 116161
> 1022 2
> 1024 6
> 1026 2
> Start with "1000G" to ODT. It should echo everything you type, using
> interrupts from the console DL11 to do so.
> I did try this on my machine to debug it, and fixed one minor thinko (I had
> used "rts pc" instead of "rti"). After that, worked like it says on the
> My machine is (at the moment) basically identical config to yours: an
> a memory card (NatSemi), and a DLV11-J. (No terminator/ROM, it's in a Sigma
> box which has termination built in.)
> > That PDF is the one I was looking at
> > though it looks like there are more diagnostics available for the
> > so that might not be completely equivalent to the test available for
> > the 23.
> Yes, that was my sense too.
> > I'm hoping a memory test shows that I have some problems there, which
> > is potentially the easiest thing to fix.
> Do you have a memory test, yet? I am planning on whipping up one of those
> too, for my own use, although it will be more elaborate than that console
> interrupt test.
> If you can use octal dumps to load, I can produce that form pretty easily:
> let me know what syntax your loader takes.
> > Someone told me a while back that the M8044 memory tends to be fail,
> > maybe I should look for something else.
> Interesting; I have a whole stack, and the first one I tried seemed not
> to work.
ben at bensinclair.com
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