On 11/24/2015 12:46 AM, Johnny Billquist wrote:
On 2015-11-23 20:30, David Bridgham wrote:
For a classic/straightforward programming interface, the Massbus
disks (RP04 and successors) are a good choice. That will take
you just over 500 MB, if you emulate the layout of the RP07.
Current thinki
On 2015-11-24 10:01, Rob Doyle wrote:
On 11/24/2015 12:46 AM, Johnny Billquist wrote:
On 2015-11-23 20:30, David Bridgham wrote:
For a classic/straightforward programming interface, the Massbus
disks (RP04 and successors) are a good choice. That will take
you just over 500 MB, if you emulate t
On 21 November 2015 at 10:27, simon wrote:
> I am very curious as what you are talking about. Is it something with html
> in mail? I configured thunderbird to only show me plain text so I can focus
> on the content and not some graphic noise.
I don't know what they're talking about either. Cory's
On 21 November 2015 at 16:55, Ray Arachelian wrote:
> What you really want is the MESS project, http://www.mess.org/ - which
> is part of MAME and has retro computer emulators.
Not any more, no.
As Al K said, MESS has now been merged into MAME.
--
Liam Proven • Profile: http://lproven.livejou
> On Nov 24, 2015, at 2:46 AM, Johnny Billquist wrote:
>
> On 2015-11-23 20:30, David Bridgham wrote:
>>> For a classic/straightforward programming interface, the Massbus disks
>>> (RP04 and successors) are a good choice. That will take you just over 500
>>> MB, if you emulate the layout of t
On 2015-11-24 16:43, Paul Koning wrote:
On Nov 24, 2015, at 2:46 AM, Johnny Billquist wrote:
On 2015-11-23 20:30, David Bridgham wrote:
For a classic/straightforward programming interface, the Massbus disks (RP04
and successors) are a good choice. That will take you just over 500 MB, if yo
> 3. The Q-bus comes in 2 (or 3?) flavors, the original with 18 bit addresses,$
I wouldn't go that far. I would say the MicroVAX-II counts as "in the
Qbus world", and it has hardware to map Qbus memory space accesses to
memory accesses, rather like the Unibus Map you sketch. DMA is "always
to th
{Catching up, after being on the road all day yesterday... Replies
to quite a few people in this, sorry you'll have to read through it
to find yours, didn't want to inundate the list with 17 replies.}
> From: Jacob Ritort
> Are you on keeping bits and/or status for these projects on git
Noel,
Any plans to allow USB "target" (as opposed to "host" -- I dunno if
those are the correct terms) to allow the board to be connected
to a modern computer as a peripheral?
phil
On Mon, Nov 23, 2015 at 12:16 AM, Adrian Stoness
wrote:
> Man this has turned in a hackerspace discussion on security
> On Nov 22, 2015 10:18 PM, "Dave Wade" wrote:
>
And here's today's installment:
Dell has been found to be including an easily cloned root certificate on
its laptops, similar t
> On Nov 24, 2015, at 10:55 AM, Johnny Billquist wrote:
>
> On 2015-11-24 16:43, Paul Koning wrote:
>>
>> ...
>> To elaborate, since this seems to be an area where people get confused:
>
> Thanks. Yes, people do seem to be confused.
>
>> 1. Unibus has 18 bit addresses, with the CSR addresses
On 2015-11-24 16:55, Mouse wrote:
3. The Q-bus comes in 2 (or 3?) flavors, the original with 18 bit addresses,$
I wouldn't go that far. I would say the MicroVAX-II counts as "in the
Qbus world", and it has hardware to map Qbus memory space accesses to
memory accesses, rather like the Unibus Ma
On 2015-11-24 17:14, Noel Chiappa wrote:
{Catching up, after being on the road all day yesterday... Replies
to quite a few people in this, sorry you'll have to read through it
to find yours, didn't want to inundate the list with 17 replies.}
[snip]
> However, if you want to write a devi
I just emailed the seller of this system to see if it has been purchased yet.
They say it's still available, and they're thinking of putting it on eBay.
--
Mark J. Blair, NF6X
http://www.nf6x.net/
Just in case anyone wonders, the Oberonstation uses a Xilinx XC3S700AN
aka Spartan-3 FPGA.
So far, I haven't found anything that says that the code for the FPGA
is open source / documented.
Ok, scratch that, I was looking at the http://oberonstation.x10.mx/ site.
Over at http://www.projectoberon.c
I recently acquired a small pile of 8" floppy disks which appear to be for IBM
4341 and 3880 hardware:
https://twitter.com/nf6x/status/669240958492372992
They're on my "to be imaged" pile. I don't have any hardware to go with them,
and would be happy to trade them away after imaging them. They
On 11/23/15 11:46 PM, Johnny Billquist wrote:
Your native interface have the additional problem that in addition to requiring
people to write their own device driver for any OS usage, it will be rather
difficult to get booting from it, since that
require special support.
There is no reason
They look like diagnostics (IPL disks are serialized). Anyway,
definitely worth saving and imaging.
Of course, I can only see the top two, but I bet there are other fun
things in the stack.
--
Will
On Tue, Nov 24, 2015 at 2:56 PM, Mark J. Blair wrote:
> I recently acquired a small pile of 8" fl
> On Nov 24, 2015, at 12:14, William Donzelli wrote:
>
> They look like diagnostics (IPL disks are serialized). Anyway,
> definitely worth saving and imaging.
>
> Of course, I can only see the top two, but I bet there are other fun
> things in the stack.
Most of them are unlabeled Diskette 1 d
On 2015-11-24 2:37 PM, Torfinn Ingolfsen wrote:
Just in case anyone wonders, the Oberonstation uses a Xilinx XC3S700AN
aka Spartan-3 FPGA.
So far, I haven't found anything that says that the code for the FPGA
is open source / documented.
I think mouse was referring to the toolchain, structure
>> So far, I haven't found anything that says that the code for the
>> FPGA is open source / documented.
(I assume there's a "not" missing after the "is")
> I think mouse was referring to the toolchain, structure of and
> interface to the FPGA itself, etc. I.e. an open FPGA product.
Yes. I consi
On 2015-11-24 16:35, Al Kossow wrote:
On 11/23/15 11:46 PM, Johnny Billquist wrote:
Your native interface have the additional problem that in addition to
requiring people to write their own device driver for any OS usage, it
will be rather difficult to get booting from it, since that
require sp
Hello,
I have some unibus machines that always need some way to interface to
modern disks.
I always dream to make an universal board that could act as disk and/or
tape interface to a modern medium (scsi or cf/sd card), but also ram,
network, I/O, whatever...
It would be very nice to design a system
> On Nov 24, 2015, at 14:04, shad wrote:
> It would be very nice to design a system based on fpga + cpu (arm), so you
> can load linux on it and avoid the hassle of handling file systems for the
> sd card, management and configuration, etc.
[...]
> But: there's always the possibility to choos
> From: Phil Budne
> Any plans to allow USB "target" (as opposed to "host" -- I dunno if
> those are the correct terms)
'host' and 'device' are the two modes for USB, IIRC.
> to allow the board to be connected to a modern computer as a
> peripheral?
Not sure I see the purpos
Noel wrote:
> I wrote:
> > Any plans to allow USB "target" (as opposed to "host" -- I dunno if
> > those are the correct terms)
>
> 'host' and 'device' are the two modes for USB, IIRC.
>
> > to allow the board to be connected to a modern computer as a
> > peripheral?
>
> Not sure I
OK so this has been bugging me for a while. During a stint working at
Morgan-Smith Electronics in Hatfield UK (they made diverse electronic
systems including industrial PCs and radio alarms) I went through the
boss's discarded vintage computer magazine collection and one particular
issue I remember
I haven't looked into this at all and I suspect it's probably quite tricky
indeed. I did look around a while back drew a blank.
If you need another dead MV2 let me know, the one I collected is still sat
in the garage.
Regards,
Mark.
On 20 November 2015 at 00:00, Robert Jarratt
wrote:
> While I
The images are now available here:
https://github.com/NF6X/ibm4341disks
The original disks are now available for trade if anybody is interested in them.
--
Mark J. Blair, NF6X
http://www.nf6x.net/
Thanks Mark,
I probably don't have space for another one really, and yours is the one in the
big enclosure anyway (like this:
http://www.trailingedge.com/comphave.html?theKey=deccmicrovax2&byCompany=0), if
I remember right, which has a different PSU.
Mine is one of these: http://www.cosam.org/
On 11/24/15 5:04 PM, shad wrote:
Hello,
I have some unibus machines that always need some way to interface to
modern disks.
I always dream to make an universal board that could act as disk and/or
tape interface to a modern medium (scsi or cf/sd card), but also ram,
network, I/O, whatever...
On 11/24/15 18:21, Phil Budne wrote:
> I suppose "host" ports can used to support physical USB dongles of
> various sorts (serial, ethernet), but I guess my orientation is "why
> connect extra hardware that can be simulated?"
We talked about this and put it in the category of "the hardware can do
On Tue, Nov 24, 2015 at 6:48 PM, Mark Wickens wrote:
> The cover had a painted image of a white cliff face draped in vines with an
> 'Adventurer' in the foreground - you can imagine what the theme was. Anyone
> have any ideas? Maybe it wasn't Byte?
"Adventurer" in the foreground Are you sure
> On Nov 24, 2015, at 5:08 PM, Mark J. Blair wrote:
>
>
>> On Nov 24, 2015, at 14:04, shad wrote:
>> It would be very nice to design a system based on fpga + cpu (arm), so you
>> can load linux on it and avoid the hassle of handling file systems for the
>> sd card, management and configura
On 11/24/2015 2:42 PM, Mouse wrote:
What I was really interested in was whether the FPGA itself was open.
If so, I definitely would have wanted to pick up the hardware, because
I would love to experiment with an FPGA - but I am _not_ going to put
up with running a vendor binary blob (which proba
On 11/24/2015 05:52 PM, Mark Wickens wrote:
I haven't looked into this at all and I suspect it's probably quite tricky
indeed. I did look around a while back drew a blank.
I built up a Micro-VAX II system out of boards, backplanes
and assorted junk. I made my own power supply. The power
supp
On 11/24/2015 05:52 PM, Mark Wickens wrote:
4. The most difficult bit, I suspect, would be the PSU LTC signal ,
which I believe is some kind of clock. I don't know what the spec of the
signal is, but I will get a scope on a working one to see (NB don't want to
risk a working PSU on this mac
On 11/23/2015 7:28 PM, William Maddox wrote:
The revived 2013 re-issue of Niklaus Wirth's Oberon system is a joy
to behold. If you've never heard of Oberon before, it is a
minimalistic education-oriented language and operating system
designed after Wirth had taken a (second) sabattical at PARC
On 11/24/2015 07:34 PM, Paul Koning wrote:
Judging a language without even looking at it seems rather odd.
Pascal is largely obsolete now, but I still appreciate it -- of the 40 or so
languages I know, there are only two where I could go from no knowledge at all
to having a working program of
> On Nov 24, 2015, at 8:30 PM, ben wrote:
>
> On 11/23/2015 7:28 PM, William Maddox wrote:
>>
>> The revived 2013 re-issue of Niklaus Wirth's Oberon system is a joy
>> to behold. If you've never heard of Oberon before, it is a
>> minimalistic education-oriented language and operating system
>>
On 11/24/2015 06:16 PM, Jon Elson wrote:
My only complaints with Pascal were the I/O was a bit clunky and slow,
and the stupid / vs. div for real vs. integer divides. Otherwise, I
really thought it was great.
IIRC, initially Pascal had no substantial I/O facilities--left as an
exercise for th
Jay an idea who's time has come?
Has anyone looked into this~?
Ed# _www.smecc.org_ (http://www.smecc.org)
I have an aftermarket hard drive system for the TRS-80 Color Computer. It
includes a Miniscribe 3425 5.25" hard drive and a Xebec S1410 SASI disk
controller. This Miniscribe hard drive has a stepper motor positioner, and
Miniscribe actually sprang for an optical track 0 sensor... unlike the 3.5"
I forgot to mention that I got the LED error code table from a technical manual
for later Miniscribe drives, so it's possible that the blink pattern means
something different on the 3425. I think it's likely to be correct, though,
given the way the stepper is behaving at power up.
--
Mark J. B
Hmm, now this is interesting. It occurred to me to try tacking a bit of
aluminum foil tape onto the interruptor blade to make it cover the optical
sensor earlier before hitting the hard stop. That made the drive seek
differently, and then report either "Track Zero sensor misadjusted" or "Seek
e
On 11/24/2015 08:45 PM, Mark J. Blair wrote:
The hard drive is blinking an error code on its LED, reporting that
it cannot cover the track 0 sensor. Measuring the sensor pins with a
DMM while the drive is powered makes me believe that the optical
sensor itself is working correctly. Its output di
> On Nov 24, 2015, at 21:37, Chuck Guzis wrote:
> Maybe it's trying to tell you that it's really a brick? :)
>
> (For those who recall the Miniscribe debacle).
LOL!
After my experience with that 20M SCSI drive on my Amiga, I'm tempted to say
that they're all bricks. Some of them just pretend
On Tue, Nov 24, 2015 at 9:45 PM, Mark J. Blair wrote:
>
> Anyway, I have it happily spinning up now after moving the interruptor vane
> on the outer stepper motor shaft a bit. It seems that the drive expects to
> see the track zero sensor trip some distance before the hard stop, but not
> too f
> On Nov 24, 2015, at 22:11, Glen Slick wrote:
>
> I did some support work for a product that used a 3.5-inch 20MB
> Miniscribe drive back in the mid-80's which had a failure mode where
> the track zero flag would rotate slightly out of position on the
> shaft. [...]
Very interesting!
I have
By the way, I found a stamp marking on the inside of the drive's front bezel
which I think represents the expected attitude of a Miniscribe drive. :-p
https://twitter.com/nf6x/status/669368721094238211
--
Mark J. Blair, NF6X
http://www.nf6x.net/
On Tue, Nov 24, 2015 at 5:30 PM, ben wrote:
>
> I say WORTH LESS, with out even looking at it, as I am NOT a Pascal
> FAN
>
>
I'm guessing you're more of a FORTRAN devotee, based on the ALL CAPS?
> On Nov 24, 2015, at 17:58, Earl Evans wrote:
>
> On Tue, Nov 24, 2015 at 5:30 PM, ben wrote:
>
>>
>> I say WORTH LESS, with out even looking at it, as I am NOT a Pascal
>> FAN
>>
>>
> I'm guessing you're more of a FORTRAN devotee, based on the ALL CAPS?
OH, SNAP! :)
--
Mark J. Blair,
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Jon Elson
> Sent: 25 November 2015 02:05
> To: gene...@classiccmp.org; discuss...@classiccmp.org:On-Topic and Off-
> Topic Posts
> Subject: Re: Replacing MicroVAX II PSU With a Modern PSU
>
> On 11/24
No luck with the hard drive system on my CoCo 2 or 3, but I don't know if I
have it set up right. There's one cartridge with the SASI interface
(presumably...), and another with an Owl Ware Hard Disk BASIC 3 ROM and floppy
controller. I can make the hard disk LED blink with commands like DRIVE P
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