[Simh] Standalone boot on vax8600?

[Henry Bent]

Sure, I'll work on getting an Ultrix image in a usable state so that I can
upload it.

-Henry


On 12 July 2014 22:50, Johnny Billquist <bqt at softjar.se> wrote:

> On 2014-07-13 04:19, Henry Bent wrote:
>
>> Cool, thanks.
>>
>> I figured out what's going on.  The standalone programs are running,
>> they just aren't displaying any input or output after the first
>> character is printed.  So if I do this:
>>
>> --
>> sim> load -o boot 0
>> sim> run 2
>>
>> --
>> and then blindly type "ra(0,0)vmunix", it boots!
>>
>
> [...]
>
> Hmm hmm. I suspect I might know what is going on there. I'd have to test
> and play around some to verify, though. The console I/O on the 86x0
> machines are a bit special, and I wouldn't be surprised if there were some
> issues in simh related to that.
>
> Mark, can we get some trace of all reads and writes to the registers
> related to the console? (There are four logical devices addressed on the
> 86x0 machines through the same CSRs.)
>
> Henry, if you could get such information logged, we could probably fix
> this pretty fast. Or else if you could just provide me with the files, I
> could test this myself as well. I don't have an old Ultrix image around,
> though.
>
>         Johnny
>
>
>> --
>> Ultrix V2.2 System #2: Wed Nov 18 01:14:13 EST 1987
>> real mem  = 8388608
>> avail mem = 6888448
>> using 34 buffers containing 278528 bytes of memory
>> VAX 8600, serial no. 1234, hardware level = 7
>> IO adapter 0 at address 0x20080000 is an SBI adapter
>> uba0 at address 0x20006000
>> uda0 at uba0
>> uq0 at uda0 csr 172150 vec 774, ipl 15
>> ra0 at uq0 slave 0
>> de0 at uba0 csr 174510 vec 120, ipl 15
>> mba0 at address 0x20012000
>> ht0 at mba0 drive 0
>> tu0 at ht0 slave 0
>> boot device not found
>> root device?
>> --
>>
>> And I can then interact with the console, characters are displayed
>> normally, etc.
>>
>> -Henry
>>
>>
>> On 12 July 2014 19:33, Mark Pizzolato - Info Comm <Mark at infocomm.com
>> <mailto:Mark at infocomm.com>> wrote:
>>
>>     On Thursday, July 10, 2014 at 5:23 PM, Mark Pizzolato wrote:
>>      > On Jul 10, 2014 2:02 PM, Johnny Billquist <bqt at softjar.se
>>     <mailto:bqt at softjar.se>> wrote:
>>      > >
>>      > > On 2014-07-11 01:08, Mark Pizzolato - Info Comm wrote:
>>      > > > On Thursday, July 10, 2014 at 3:13 PM, Cory Smelosky wrote:
>>      > > >> On Thu, 10 Jul 2014, Henry Bent wrote:
>>      > > >>
>>      > > >>> Well, that at least did something different.
>>      > >>>
>>      > >>> sim> boot rq0 /r5:8
>>      > >>> Loading boot code from vmb.exe
>>      > >>> %BOOT-F-Unexpected Exceptio
>>      > >>>
>>      > >>> The 8600 simulator always seems to cut off the last character
>>     of its
>>      > >>> messages, I wonder if that's in any way related to the other
>>     console
>>      > >>> problems.
>>      > >>>
>>      > >>
>>      > >> 780, 750, and 730 have the same issue...along with not
>>     actually booting from
>>      > >> the console RL, floppy, et al.
>>      > >
>>      > > The last character output in a message just prior to executing
>>     a HALT
>>      > > instruction is not surprising since the simulator implements a
>>     delay
>>      > > (as a number of instructions executed) from when the data is put
>> in
>>      > > the output register prior to generating the completion
>>     interrupt/status.
>>      > >  The halt instruction gets executed before the delay number of
>>      > > instructions have completed.  Even if that was 'fixed', nothing
>>      > > operational would change.  The reason the message has been
>>      > > generated will still exist.
>>
>>     The latest github code will no longer drop the last character output
>>     just prior to executing a HALT instruction which returns to the
>>     "sim> " prompt.
>>
>>     Like I said above, nothing else changes though.
>>
>>     - Mark
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>>
>>
>>
>
> --
> Johnny Billquist                  || "I'm on a bus
>                                   ||  on a psychedelic trip
> email: bqt at softjar.se             ||  Reading murder books
> pdp is alive!                     ||  tryin' to stay hip" - B. Idol
>
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