[Simh] Standalone boot on vax8600?
Henry Bent
hbent at oberlin.edu
Sat Jul 12 23:01:02 EDT 2014
Here you go:
http://occs.cs.oberlin.edu/~hbent/vaxultrix/boot.gz
-Henry
On 12 July 2014 22:57, Johnny Billquist <bqt at softjar.se> wrote:
> On 2014-07-13 04:52, Henry Bent wrote:
>
>> Sure, I'll work on getting an Ultrix image in a usable state so that I
>> can upload it.
>>
>
> Actually, thinking about it, it should be enough with just the boot file
> that you are using.
>
> Johnny
>
>
>> -Henry
>>
>>
>> On 12 July 2014 22:50, Johnny Billquist <bqt at softjar.se
>> <mailto: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>
>> <mailto: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>
>> <mailto: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 <mailto:bqt at softjar.se> ||
>>
>> Reading murder books
>> pdp is alive! || tryin' to stay hip" - B. Idol
>>
>>
>>
>
> --
> 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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