Rob Doyle wrote:
> As a clarification, it looks to me like the sector header data "words"
> are always 16-bit, regardless if the disk pack is formatted for 16-bit
> data or 18-bit data.
That's how I understood it too.
> From a hardware point of view, sector header "Word 3" and "Word 4"
> have no
On 6/26/2019 9:54 PM, Lars Brinkhoff wrote:
SALV actually writes data for an entire track all in one go. I tried
something which skips the headers in the middie. But there must be
something else wrong with my code, because when reading back the sector
data I just get zeroes.
Anway, I agree
On 6/27/2019 11:27 AM, Bob Supnik wrote:
As I suspected, RP class drives (except the RP07) have 4 words of
header, and RM class drives have 2. This is confirmed by the RSTS/E disk
initialization code. RSTS/E can't format an RP07, so I can't verify how
those functions ought to work. RSTS/E
(Hooray for automatic spell correction...)
On 2019-06-27 11:02, Johnny Billquist wrote:
I'm pretty sure the ones I ever saw had so or sti and were connected to
an hsc.
so was meant to be sdi. So, sdi or sti is what I seem to remember ours
had. I think we might still have one or two drives
Sorry, I did oversimplify it, yes.
Essentially, I meant that you should write the data part as a normal
write, and ignore the extra fluff required for the write header. That
ought to make most software happy.
So, skipping extra words intended for the header, adjust size accordingly.
As I suspected, RP class drives (except the RP07) have 4 words of
header, and RM class drives have 2. This is confirmed by the RSTS/E disk
initialization code. RSTS/E can't format an RP07, so I can't verify how
those functions ought to work. RSTS/E seems to think it has 2 words of
header,
Maybe there was an upgrade kit for the RV20 like the TU81 to TA81 kit which converts it from LESI to STI.Internally the RV20 appears to use SCSI.MattOn 27 Jun 2019 10:02, Johnny Billquist wrote:I'm pretty sure the ones I ever saw had so or sti and were connected to an hsc. Johnny Matt Burke
I'm pretty sure the ones I ever saw had so or sti and were connected to an hsc.
Johnny
Matt Burke skrev: (27 juni 2019 09:58:14 CEST)
>On 26/06/2019 04:28, Robert Armstrong wrote:
>> Thanks, but I was more interested in the details of LESI if they are
>> available. LESI was another mass
On 26/06/2019 04:28, Robert Armstrong wrote:
> Thanks, but I was more interested in the details of LESI if they are
> available. LESI was another mass storage "bus" that supported both disk and
> tape (albeit with exactly one example of each).
>
There is also the RV20 write-once optical drive
On Thu, 2019-06-27 at 00:40 -0600, Bruce Ray wrote:
> Note that an on-line Nova emulator is available at:
>
> http://www.novasareforever.org/novajs/index.php
>
Thanks Bruce,
I'll pass that on :-)
PeterO
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Note that an on-line Nova emulator is available at:
http://www.novasareforever.org/novajs/index.php
Bruce Ray
Wild Hare Computer Systems, Inc.
Boulder, Colorado USA
b...@wildharecomputers.com
...preserving the Data General legacy: www.NovasAreForever.org
On 6/27/2019 12:23 AM, Peter Onion
(Long time lurker here !)
A friend of mine has just building a paper tape reader to read some only tapes
has has
from his college days in the 1980s.
He says "The machine at college was a Data General Nova and we only had access
to BASIC!"
so I thought I would ask here if there is anything that
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