PDP-11/23 Debugging

[Ben Sinclair]

I found the microfiche for the KDF-11B on Bitsavers, but they're missing
the one for the KDF-11A unfortunately!

On Tue, Nov 18, 2014 at 9:21 PM, Ben Sinclair <bensinc at gmail.com> wrote:

>
>
> On Tue, Nov 18, 2014 at 5:24 PM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
> wrote:
>
>>
>> So, if the CPU checks OK, maybe the DLV11-J has a problem with
>> interrupts? Is
>> there a DL11 diag you can run on it? (If not, I can whip up a simple test
>> to
>> check it out.)
>>
>
> The diagnostics manual mentions this:
>
> NDLAA0.BIN DLVll-J (M8043 & FALCON) LOGIC TEST
>
> But, the only XXDP disks I have are the ones from AK6DN, and that test
> doesn't appear to be on any of them.
>
>
>
>>
>>     > I have another memory board, but I know it's bad, so I can't try
>> that!
>>
>> Probably the one you have passes the memory diag, though, right?
>>
>
> I've run a memory test program I found that's not part of XXDP, and I
> believe it's fine, but is there a test in XXDP I could run? I don't see
> anything in the XXDP manual related to an M8044/MSV11. Now that I think
> about it, I probably should find a way to really verify the memory is
> working!
>
> The MMU test from XXPP does pass, but I'm not sure if that also tests the
> memory.
>
>
>> If it's not an issue with the DL11 interrupting, it sounds like we may
>> have
>> to dig into that diag to find out what it thinks it's doing when it blows
>> up.
>> If I can get my tool-chain working (currently downloading the abs-loader
>> isn't working right somehow), I'll see if I can figure out how to load it,
>> and DDT along with it, and poke into it.
>>
>> Locating the fiche would be another way to go...
>>
>>         Noel
>>
>
>
>
>
>
> --
> Ben Sinclair
> ben at bensinclair.com
>



-- 
Ben Sinclair
ben at bensinclair.com