VAX-11/730 and Emulex UC17 woes
tmfdmike at gmail.com
Tue May 24 16:14:37 CDT 2016
On Wed, May 25, 2016 at 8:58 AM, Josh Dersch
<JoshD at livingcomputermuseum.org> wrote:
> Interesting, the UC17 has the same firmware version (G143R) on the label of the EPROM. I wonder if the contents are identical. Could you send me a dump of your ROM so I can compare?
>> I dumped the memory for this code from the VAX and entered it into SIMH
>> to use SIMH as an VAX unassembler and this is what it looks like.
>> If the UC17 host resident VAX code is the same, any clues here as to what
>> might be causing a halt on the 11/730?
Here's what I found comparing my code with someone else's dump:
I've been working this with Glen Slick. Here's a snippet of a recent
email with him. He provided a dump of the DMAed loader from his UC07:
The raw binary dumped on the VAX looked like this:
P 00000080 FD310311
P 00000084 01F83101
P 00000280 01881611
P 00000284 8FD0F9AF
P 00000288 80000003
P 0000028C 08800C9F
P 00000290 008FDA20
P 00000294 04000008
P 00000298 00028FD0
P 0000029C 089F8000
P 000002A0 01200880
First mismatch is here; P 000002A0 0100F308
P 000002A4 DE121FDA
P 000002A8 000153EF
P 000002AC 8FD05100
P 000002B0 00000200
P 000002B4 8100D052
P 000002B8 D0FA52F5
P 000002BC 0014688F
But mine has P 000002BC FFF4688F
P 000002C0 65B45520
Mine had P 000002C0 65B45500
Ran out of time at this point - but enough to establish at least
*some* values are different.
Tried S 80 - different error! ?05 PC=00000344
I did 'I' then started from scratch - D/L/P F26800... etc.
Here's a quote from an email exchange from a couple of months ago on
same issue: dumb question: have you tried just booting it without
"I think that UC17 is identical to UC07 firmware-wise. At least my
UC17 EPROM is marked UC07. There is some posts on vcfed.org forum on
UC07 firmware quite recently.
Why do you need to enter the FRD? I never needed to do that. Just
inserted the SCSI2SD with the SD-card in it and booted. Worked
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'
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