On Fri, Oct 2, 2020, 8:38 PM Chuck Guzis via cctech
wrote:
> In fact, is there any standard for floppy disk metadata container files?
>
> I'm not aware of any.
>
Teledisk?
>
In fact, is there any standard for floppy disk metadata container files?
I'm not aware of any.
--Chuck
> On 10/2/20 1:42 PM, Eric Smith via cctalk wrote:
>
> >/Of course, that scheme breaks programs that use tape images but don't
> >/>/expect enormous or "negative" record lengths. /
> Those would already be broken with Bob's use of large negative numbers for
> physical end of
> tape and 'bad block
On Fri, Oct 2, 2020, 9:37 PM Chuck Guzis wrote:
> On 10/2/20 8:08 PM, Warner Losh wrote:
> >
> >
> > On Fri, Oct 2, 2020, 8:38 PM Chuck Guzis via cctech
> > mailto:cct...@classiccmp.org>> wrote:
> >
> > In fact, is there any standard for floppy disk metadata container
> files?
> >
> > I'm
On 10/2/20 8:08 PM, Warner Losh wrote:
>
>
> On Fri, Oct 2, 2020, 8:38 PM Chuck Guzis via cctech
> mailto:cct...@classiccmp.org>> wrote:
>
> In fact, is there any standard for floppy disk metadata container files?
>
> I'm not aware of any.
>
>
> Teledisk?
>
Heh, but no--there's no
Yea I received a Sparcbook 2 and saw this damage knock some SMD
components off the entire OTHER SIDE of the board from the leaky cap.
Got it going again with cleaning and repair work though.
I had a SB3 fail in its power supply module due to shorted tantrums on
the output side of the supply whi
On 10/2/20 1:42 PM, Eric Smith wrote:
> On Fri, Oct 2, 2020 at 1:27 PM Chuck Guzis via cctalk
> mailto:cctalk@classiccmp.org>> wrote:
>
> Actually, they're neither. I append the metadata after the EOI marker
> on mine. Doesn't seem to bother the emulators.
>
>
> Some programs (but pro
On 10/2/20 1:42 PM, Eric Smith via cctalk wrote:
Of course, that scheme breaks programs that use tape images but don't
expect enormous or "negative" record lengths.
Those would already be broken with Bob's use of large negative numbers for
physical end of
tape and 'bad block is here' (you don
On Fri, Oct 2, 2020 at 1:27 PM Chuck Guzis via cctalk
wrote:
> Actually, they're neither. I append the metadata after the EOI marker
> on mine. Doesn't seem to bother the emulators.
>
Some programs (but probably very few) that use various so-called .tap files
assume that they can seek to the
On 10/2/20 12:26 PM, Chuck Guzis via cctalk wrote:
This is basically the problem with all of the container file formats
that I've seen. They seem to think that the data alone is sufficient to
describe an object. Quite often, a simple paper label is more
informative than a bunch of bits
the
On 10/2/20 11:51 AM, Paul Koning wrote:
>
>
>> On Oct 2, 2020, at 1:46 PM, Chuck Guzis via cctalk
>> wrote:
>>
>> On 10/1/20 11:40 PM, Warner Losh via cctalk wrote:
>>> On Fri, Oct 2, 2020, 12:05 AM Tom Hunter via cctalk
>>> wrote:
>>>
I have never figured out why Bob Supnik defined the m
On Oct 2, 2020, at 12:01 PM, John Many Jars via cctalk
wrote:
>
> I've always had a weakness for terminals.
>
> I have a question, are all those RJ-11 style keyboards interchangeable?
No, virtually every manufacturer had its own signaling and protocols, and in a
lot of cases individual *model
I've always had a weakness for terminals.
I have a question, are all those RJ-11 style keyboards interchangeable? I
have an ICL M8 with a bad key... it's only the scroll lock... but still.
There is so little information about these things that I've been able to
find...
> On Oct 2, 2020, at 1:46 PM, Chuck Guzis via cctalk
> wrote:
>
> On 10/1/20 11:40 PM, Warner Losh via cctalk wrote:
>> On Fri, Oct 2, 2020, 12:05 AM Tom Hunter via cctalk
>> wrote:
>>
>>> I have never figured out why Bob Supnik defined the magnetic tape
>>> containers (TAP files) with the
On Fri, 2 Oct 2020 at 19:20, Noel Chiappa via cctalk
wrote:
>
> (For those are are not familiar with Mini-Unix and LSX, they are both V6 Unix
> variants lobotomized to run on PDP-11's without memory management:
Aha!
Like this?
https://hackaday.com/2018/06/03/its-unix-on-a-microcontroller/
http:/
On 10/1/20 11:40 PM, Warner Losh via cctalk wrote:
> On Fri, Oct 2, 2020, 12:05 AM Tom Hunter via cctalk
> wrote:
>
>> I have never figured out why Bob Supnik defined the magnetic tape
>> containers (TAP files) with the one byte padding for odd length records.
>> This seems very odd (pun intended
> From: Liam Proven
> for my continuing education: what's a "Mini-Unix binary"?
Two possible meanings; a system image for a Mini-Unix system (buildable under
V6 with the standard V6 tool-chain of C-compiler/assembler/linker), and user
command binaries (buildable with the C-compiler/assemb
On 10/2/20 8:17 AM, Zane Healy wrote:
There is a name from the past. That’s a good question Al, when was the last
time anyone heard from Dave?
kinda grasping at straws at this point
Eric Smith has been looking for info on the SMD Elite drives for over 10 years.
The non-SCSI Elite series wer
There is a name from the past. That’s a good question Al, when was the last
time anyone heard from Dave?
Zane
> On Oct 1, 2020, at 6:41 PM, Al Kossow via cctalk
> wrote:
>
>
>
> 5.25" SMD drives
>
>
> From: David C. Jenner
> Date: Tue Jun 24 19:28:00 2003
>
> I have complete docs (Us
I'm sorry Paul, I didn't know you were talking about the carry circuit or I'd
have replied. I don't recall where I saw the circuit described but with relay
contacts, the carry was basically as fast as the sum was created. It was kind
of a parallel operation. It didn't require different relay coi
On Thu, 1 Oct 2020 at 00:58, Noel Chiappa via cctalk
wrote:
>
> No, it looks like it uses a different fie-system layout.
>
> Besides; there's not much point: the big adantage of using V6 is that one can
> use the V6 tool-chain to prepare Mini-Unix binaries; XV6 wouldn't allow
> that. If all one wa
On 2/10/20 10:20 am, Brent Hilpert via cctech wrote:
> I'm not sure how unique this is to Zuse however.
> The raw design presented in the Radio-Electronics/Edmund Berkeley Simon
> articles of 1949/50 presents this scheme,
> although more complex (unoptimised) in the contact logic.
> This is post-Z
> -Original Message-
> From: cctalk On Behalf Of K. Krause via
> cctalk
> Sent: 02 October 2020 08:54
> To: General Discussion: On-Topic Posts
> Subject: Re: Zuse Z4 - Oldest Surviving Computer in the World - Lost in the
> archives
>
>
>
> On 01.10.20 23:38, Eric Smith via cctalk wr
On 01.10.20 23:38, Eric Smith via cctalk wrote:It is going to need a lot
of contact cleaning.
The one thing I like is the carry design the Zuse used. Really fast for
relays but not of much use for solid state.
Where is that circuit described?
The circuit is described in Konrad Zuses life m
On 2020-Oct-01, at 2:03 PM, Paul Koning via cctalk wrote:
>> On Oct 1, 2020, at 1:20 PM, dwight via cctech wrote:
>>
>> It is going to need a lot of contact cleaning.
>> The one thing I like is the carry design the Zuse used. Really fast for
>> relays but not of much use for solid state.
>> Dwig
On Wed, Sep 30, 2020 at 7:48 PM Bob Rosenbloom via cctalk <
cctalk@classiccmp.org> wrote:
> On 9/30/2020 3:40 PM, Josh Dersch via cctalk wrote:
> > On Wed, Sep 30, 2020 at 2:41 PM Gavin Scott via cctalk <
> > cctalk@classiccmp.org> wrote:
> >
> >> Josh wrote:
> >>> https://1drv.ms/u/s!Aqb36sqnCIfM
On 10/1/20 11:40 PM, Warner Losh wrote:
>
>
> On Fri, Oct 2, 2020, 12:05 AM Tom Hunter via cctalk
> mailto:cctalk@classiccmp.org>> wrote:
>
> I have never figured out why Bob Supnik defined the magnetic tape
> containers (TAP files) with the one byte padding for odd length
> records.
>
27 matches
Mail list logo
