... another classic service dies... first Gopher (Archie, etc) now
Ceefax (teletext)!
http://en.wikipedia.org/wiki/Ceefax
--
Yoyodyne Propulsion Systems: ?"The Future Begins Tomorrow"
Visit us at: http://www.yoyodyne-propulsion.net
--------
"Under the Obama plan, NASA will spend $100 billion on human
spaceflight over the next 10 years in order to accomplish nothing"
-Robert Zubrin
From: Jos Dreesen <jdr_use at bluewin.ch>
Subject: Iomega ZIP programming manual ?
> Probably borderline for CCtalk,
> but does anyone have a proper programming manual for the
> Iomega ZIP drive ( 100MB atapi version ) ?
> I need to know exactly which ATAPI commands have been implemented.
To paraphrase a famous Jedi knight "use the source, Luke!"
The Linux driver source code
is probably the closest thing to documentation
This mentions what parts to look for:
http://www.faqs.org/docs/Linux-mini/ZIP-Drive.html
(sorry I don't have a better URL.
I've rarely needed to find Linux source code)
I never allowed ZIP drives in my house
but I tried using 1 gig JAZ drives.
I ruined them by trying the SCSI low-level format command on them.
The cartridge was unuseable after that.
I suspect ZIP drives & cartridges are similar:
DO NOT LOW LEVEL FORMAT!
-- jeffj
Its in NE Philadelphia. You must come deinstall and haul away. Time
is very short. If you are interested and can come and remove very soon
email me and I will give you the contact information. I have no more
knowledge, just forwarding the info. It's unclear if they will want
some $ for it.
[VMS Internals Books e.g. Kenah Goldenberg & Bate]
> I haven't seen that specific book, but in general such books usually
> tell what the software does, but not the engineering trade-offs that led
> to it being done that way as opposed to some other way, which seems to
> be what was requested.
At least a little of that does shine through.
"The Hitchiker's Guide to VMS" has many tidbits up through the V5 days. Bruce Ellis, 1990. And even better it's enjoyable.
There were various detailed things in DTJ, although those typically represent more of the corporate mongolian-horde design-by-committee approach to systems programming, rather than anything you'd want to actually emulate.
Tim.
Probably borderline for CCtalk, but does anyone have a proper programming manual for the Iomega ZIP drive ( 100MB atapi version ) ?
I need to know exactly which ATAPI commands have been implemented.
Jos Dreesen
Note: I'm not asking about VAX hardware architecture, but about the
software architecture of the VMS operating system.
What were it's design goals?
What were the design trade-offs made that resulted in the specific
choices for VMS? Process scheduling? I/O? etc.
Is there a good book on this subject?
--
"The Direct3D Graphics Pipeline" -- DirectX 9 version available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
Some here may find this useful:
http://www.vecoven.com/trs80/trs80.html
He seems to be emulating a WD1010 drive controller.
g.
--
Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.
http://www.diy-cockpits.org/coll - Go Collimated or Go Home.
Some people collect things for a hobby. Geeks collect hobbies.
ScarletDME - The red hot Data Management Environment
A Multi-Value database for the masses, not the classes.
http://www.scarletdme.org - Get it _today_!
Buying desktop hardware and installing a server OS doesn't make a
server-class system any more than sitting in a puddle makes you a duck.
[Cipher in a.s.r]
----- Original Message:
Date: Mon, 16 Apr 2012 09:55:12 -0400
From: Ethan Dicks <ethan.dicks at gmail.com>
> Try powering up with the video RAMs removed (they are in the back and look
> like they have dots on them). With no RAM, the PET should power up to a
> blank screen
Tsk, tsk, Ethan, you know better than that ;-)
A PET with a working video section and video RAM removed will show the
classic checkerboard pattern or under certain circumstances a pattern of
small black squares.
No doubt there's considerable PET knowledge on this list, but as Terry
suggested previously the VCF forum or one of the PET/CBM-specific lists
might be a better place to find help with a sick PET...
m
Hi
You wouldn't have a copy of the reference disks for your rm pc-386 as I have
one and am unable to setup it up as I cant get into the bios etc
Any help would be much appreciated
Cheers
mark
cctalk-request at classiccmp.org wrote:
From: David Griffith <dgriffi at cs.csubak.edu>
To: cctalk at classiccmp.org
Subject: straight-8 miniaturised
Who was the one with the wacky idea of building a Straight-Eight PDP8
using flipchip cards populated with surface-mount parts? I have a
hankering to run some numbers about it.
There's some guy in Germany who built a complete computer using
discrete components, mostly resistors and bipolar transistors
(no ICs), but all surface mount. It was quite small. I can't find the
link now, but there are a bunch of homebrew computer projects linked
to here:
http://www.homebrewcpu.com/links.htmhttp://www.holmea.demon.co.uk/Links.htm
Jon
Hi,
I'm thinking of getting my Zilog System 8000 maybe one day
back to life... this includes multiple tasks.
- get a working harddrive
- get a working tapedrive
- get access to tapes containing the OS and the diagnostics
Right now I'm thinking of the tapedrive part.
The original drive is a DEI CMTD-3400
http://www.bitsavers.org/pdf/dei/CMTD-3400S2_4tk6400bpi_1979.pdf
I have one but it is broken in multiple ways
- the previous owner I got the drive from replaced it in the 80s
as it was failing (no further details available)
- the motor does not run smootly - it does not start on its own
when powered up and the UPM is changing. I was not able to open
it.
- the rubber wheel went to fluid (usual problem...)
I now got a so called "Quantex 2200" which is a 19" case with
two Quantex 650 drives which should be able to handle the same
tape format as the DEI drive.
All I was able to find about this drive was:
http://www.bitsavers.org/pdf/quantex/TM1001_650_Jul81.pdf
Does anyone have any experience with this drive? I wonder if
I could make it "connection compatible" somehow with the DEI
drive. The manual itself talks about a controller board which
is the only whay the drives can be bus driven - it looks like
the drives in this 2200 case do not have this optional controller
board. Maybe they do not have it because the big plate in top
of the case is a controller board for both drives...
Who knows - I did not find anything usefull about this 2200
case nor how it is supposed to be connected to what (pinouts).
The rubber wheels are as well went fluid.
I could also need some ideas how to get a QIC drive capable of
reading and writing DC300XL QIC cartridges hooked up to a PC
with BSD or Linux running as in some point in the future.
I must be able to copy the system tapes (reading + writing) with
a PC.
Pics of this 2200 case:
http://pics.pofo.de/gallery3/index.php/S8000/Quantex-2200
Greetings, Oliver
Do you remember Grant Stockly of altairkit.com? Whatever happened to him?
The site is still up and running, but it hasn't been updated since 2007.
The forums there are choked with spam. I'd love to see what he's been up
to and maybe buy a kit from him.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Who was the one with the wacky idea of building a Straight-Eight PDP8
using flipchip cards populated with surface-mount parts? I have a
hankering to run some numbers about it.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
On Tue, Apr 17, 2012 at 8:31 PM, Michael Thompson
<michael.99.thompson at gmail.com> wrote:
> The M220 tester is the one that I want to see
> working. Those modules are problematic and difficult to test in a
> partially working system.
I would love to see (and build!) an M220 tester. That's a complex module.
-ethan
Hi
Months ago there was some discussion about a SCSI-1 to IDE converter
project. There appears to be some general need for older SCSI-1 based
computers to replace their hard drives with more available models.
Unfortunately there are no "free and open" solutions as of yet AFAIK.
I've designed a PCB that converts SCSI-1 to IDE and SD. There are about 8
PCBs left. I am looking for some volunteers to help build and test the
board. So far we know the basic board boots but still need more software to
handle the SCSI-1 to IDE or SD conversion.
http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=MINI%20SCSI%20t
o%20IDE%20prototypes
If you are willing to volunteer and have some experience in building,
testing, debugging, and writing software this would be a good project.
Please contact me by email for more information.
Thanks and have a nice day!
Andrew Lynch
On 15 Apr 2012 at 12:20, Eric Smith wrote:
> Chuck Guzis wrote:
> > just google for "germicidal lamp" Not horribly expensive. Add an
> > inexpensive mechanical timer if you'd like and you're all set.
>
> But remember, the short-wave UV can harm your eyes fairly quickly.
> Catching a brief glimpse of it won't hurt you, but avoid looking at it
> any longer than that. Put it in an opaque container. I strongly
> recommend installing a switch that turns off the lamp when the
> container is opened.
Hence my coffee can container. Not convenient to turn upside down
and stare into. One could add a microswitch or even a mercury switch
to enforce an interlock, but I never found it necessary.
> If you're in a hurry, it is also possible to use a Xenon or Krypton
> flash tube (provided that it is made from quartz class to not filter
> out the shortwave UV) to erase the EPROMs nearly instantaneously.
> Needless to say, this is even more potentially harmful to the eyes.
Should be easy enough to find if one hoarded the disposable camera
innards. A carbon arc will also do just fine (I remember how
brightly the luminous face on a watch would glow when held to the
observation port of an Ashcraft projector can. See
https://www.youtube.com/watch?v=5Jqc4GiMQE0). A MIG welder would
also probably generate enough short-wave UV.
I wonder if enough UV would get through, say, an ordinary 75 watt
mercury-vapor luminaire.
--Chuck
Querying the Group Mind(TM):
We have been asked to find out if any Systems Engineering Laboratories
systems are still in existence. That's kind of vague, but that's the
question as it was posed to us, and I said I'd ask in the usual fora.
We're only looking for information on whether any of these systems are
known still to be in existence, whether in use or in storage.
I vaguely remember Gould SEL32 "superminis" in the late 70s/early 80s as
competitors to the DEC VAX and the IBM 43xx lines, but only through ads
in Computerworld and Datamation. Information on those would be appreciated.
We would also like to know about earlier systems, including the 24-bit
processors from the mid-60s.
Thanks for any help you can provide.
Rich Alderson
Vintage Computing Sr. Systems Engineer
Vulcan, Inc.
505 5th Avenue S, Suite 900
Seattle, WA 98104
mailto:RichA at vulcan.com
mailto:RichA at LivingComputerMuseum.org
(206) 342-2239
(206) 465-2916 cell
http://www.LivingComputerMuseum.org/
Heres my official List of whats for sale
Apple IIGS ROM 03 with CMS SCSI II card, AE SonicBlaster, 2 External
SCSI Hard Drives, 1 40mb the other 80MB- both come with extra drive
mechanisms- Matching Monitor, Keyboard & Mouse $200 plus shipping
Apple //e enhanced system loaded
Has the 80col/RGB Card, With Color Monitor 100, Echo II Speech Synth
Card, Apple II workstation card, Liron Card w/ 3.5 UniDisk Drive,
SCSI Card
Comes with a DuoDisk Drive, and a 3.5 UniDisk, Super Serial Card, And
a Monitor //
$300
Tandy 1400HD Laptop- Comes with AC Adapter and Dead Battery, Cant get
unit to power up.
$40
TRS-80 Color Computer with original owners manuals, joysticks, tape
player, software carts. All of it for $50 dollars
4 Apple Disk II Drives $25 each- may need cleaning
Apple //c System with AC Adapter and external 5.25 drive $30 + shipping
Tandy SL386 w/ 486 upgrade 4MB RAM 80MB HDD $20
AST Advantage Adventure 486/33 with 66mhz overdrive 16MB RAM, 170MB HDD,
SoundBlaster 16 w/ IDE and CD-ROM installed $40
Tandy 486 Desktop, SCSI Card 8MB RAM, 250mb HDD $30- Powers on but
doesnt POST
8 G3 All in One Molar Macs $20 dollars each- Will not ship these
monsters as they weigh 60lbs each- These will have to be recycled if
they arent taken soon enough
20 Mac LC 575 systems $20 dollars each- These are also recycle bound
10 Power Mac 5500s $20 each These are also recycle bound
Apple ADB Mice $5 dollars each- I have 80 of them
Apple //e 80/Col RGB Card made by Taxan $20
Kaypro 2 Nice original System, original owners manuals, system disks
and software works fine- Never use it $150
Kaypro IV Plus 88 $40
Commodore SX64- Great condition fully functional, Owners Manual and
original disks and carry bag included $175
1 Mac 512k for parts- Powers on, missing Floppy Drive $40
ROM 00 IIGS CPU $20
Will have more as I clean out my closets and shed in the future
Steve Landon
Flushing MI
>From the earliest history of the computer the innovators and engineers
talked about licensing, patents and who did what & when. What has
changed? Should we be surprised that Jack Tramiel ?acted? the way he
did and not necessarily in a bad way; that the supercomputer?s origins
is in dispute! The historical origins, in some fashion, can be found
in ?Turing Cathedral: The origins of the digital universe? by George
Dyson. It tells us why we had the vintage computer era - this can be
found in my book, ?A Historical Research Guide to the Microcomputer.?
(Shameful plug here!) - and what has evolved since.
Murray--
Hi -- friends of mine found an intact, in-box Minivac 6010
with manuals and wires etc in their mother's closet in Ohio.
Just as a FYI for them, any info on valuation? I see virtually
no trades of these in Google searches.
tanks
Brian
On Sat, Apr 14, 2012 at 2:12 PM, Dave Caroline
<dave.thearchivist at gmail.com> wrote:
> On Sat, Apr 14, 2012 at 7:52 PM, Win Heagy <wheagy at gmail.com> wrote:
>> Hi,
>>
>> I recently picked up a PET 2001-8. ?It has a video issue...see
>> http://imgur.com/PKc97 ?(disregard the black diagonal scan
lines...digital
>> camera artifact).
> 2 The processor cannot write to the video ram (and therefore clear it)
>>>That's also a distinct possibility.
>>>Which version of Static PET do you have? They came with different
>>>types of ROM and RAM (the schematics for all three variations are
>>>posted on zimmers.net). Main memory and video memory use the same
>>>chips, 1Kx4 in pairs. You need two working chips for video memory at
>>>at least 4 working chips for main memory (the first 1K is taken up
>>>with zero page variables, stack, and tape buffers). 2114 SRAMs are
>>>notoriously suspect, but 6550s can fail too.
Is it possible to tell the version by looking at the board? I posted a pic
at
http://imgur.com/3aeiL
>>>Before worrying about RAMs, check your Vcc... there are 4 regulators
>>>and 4 legs of +5VDC. If you've lost one, obviously, it will act
>>>strange.
I checked the 4 regulators and they are all outputting +5VDC. The most
deviation I saw was +4.94VDC.
Thanks...Win
Ok. I just thought I'd stir some interest and just general noise by
announcing that I've written a small web-server running under RSX.
It's written in BASIC+2, and uses the TCP/IP stack for RSX that I've
also written. There are probably a bunch of bugs and issues still
around, so I'm happy to take any bug reports, comments or whatever.
The url is http://madame.update.uu.se/, and if anyone is curious about
the code, it's at mim.update.uu.se (same machine, other IP), under
MIM::DU:[HTTPD]WWW.B2S (also on HECnet)
If people have any interest in this stuff, or something else/more, I'm
interested in hearing about it. The TCP/IP stack will eventually (soon)
be available for others to download and use, and apart from the web
server, I've also written a telnet client, and a few small services
under TCP, as well as some tools for administration. I have some
polishing to do, I need to finish a DNS resolved, and I'd like to also
finish FTP and a telnet server, but I might be open to distributing
things before I've finished all those things, especially if someone is
interested in helping writing stuff.
I have interfaces completed for BASIC+2, PDP-11 C, Macro-11. FORTRAN 77
should also work, but I haven't tried it yet.
This all runs under RSX-11M-PLUS V4.6, but I think it should be possible
to get running under almost any M+ version, but there might be some
hacking needed for some versions.
It will not work under 11M, and I never expect it to. One or two drivers
as well as one or two tools really are big enough that I need to use the
split I/D space feature in M+. Rewriting stuff to not need that is way
too much work.
Johnny
--
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
Cleaning out guys.. I got the following that needs homes- All prices are
plus shipping or Local Pickup from Flushing Michigan 48433. Folks who
do local pickup at my door get an even better deal.
Mac 512- Pretty Yellow missing floppy drive. Powers up to ? $30
dollars + Shipping
2 Quadra 610s 1 a 610CD, other a Regular 610.. 8MB RAM in both 80 and
160MB HDDs
$20 each plus shipping
Power Macintosh 6500/275 32MB RAM 2GB HDD. Has TV/Video System with
TV/Video System box, TV Tuner and Remote $40
Power Mac 8500/180 16MB RAM 1GB HDD $30
WorkGroup Server 8550 16MB RAM No HDDs or tape drive $20
Macintosh Plus- No keyboard or mouse.. Powers up, then drops to a
white line in screen $20
Tandy 486/33 system.. DX266 OverDrive in it. SCSI CD-ROM, SCSI Card,
1GB HDD $30
AST Advantage Adventure 4/33p 16MB RAM 170MB HDD, SB16, CD-ROM. $30
dollars
Apple Disk II Drives $20 each
Apple 800k External 3.5 Drives $20 each
Apple Extended Keyboard IIs- Lots of em $10 each
Dayna BlueStreak 10/100 LC Ethernet Cards New In Box $15 each
20 Apple IIGS RGB Monitors $25 each plus shipping
10 Apple Monitor //s $25 each plus shipping
10 Apple //e Systems $20 each without drives & monitor
Toshiba Satellite 220CDS- 133mhz Pentium 32MB RAM 1.2GB HDD No ac
adapter, comes with spare machine that needs backlight- $30
Toshiba Satellite 330CDS 266mhz Pentium 80MB RAM 4GB HDD, Ethernet Card $50
Zenith 9 inch Green Screen monitor- works Composite input. $10 dollars
Tandy 1400HD Laptop.. Will not power up.. Comes with AC Adapter which
tested good
Radio Shack TRS-80 Color Computer 1 with original owners manuals,
cassette player and software $50 dollars
Gateway Solo 9500 Laptop- Has AC adapter, 64MB RAM 30GB HDD- Real
Serial Port, Floppy Drive and parallel port and usb $20
50 40GB IDE Hard drives $5 dollars each plus shipping
9 80GB IDE Hard Drives $10 dollars each plus shipping
I have a storage unit full as well.. Everything from Molar Macs, to
Apple //e's to compact macs.
Shoot me an email and lets make a deal so I can have my living room back :P
Steve Landon
Flushing Michigan- Which is 15 mins northwest of Flint Michigan
On 2012-04-16 02:04, David Riley<fraveydank at gmail.com> wrote:
> On Apr 14, 2012, at 11:11 AM, Johnny Billquist wrote:
>
>> > On 2012-04-13 19:00, "Zane H. Healy"<healyzh at aracnet.com> wrote:
>>> >> Not sure why I didn't see the original. I have to agree, this is
>>> >> *VERY* cool, as I suspect very few hobbyists have access to a TCP
>>> >> stack for RSX-11M+ at this point! This is also the first I've heard
>>> >> of a web server hosted on a PDP-11 running on something other than
>>> >> RT-11.
>>> >>
>>> >> Are you targeting a specific Ethernet interface?
>> >
>> > Nope. Works fine on both Q-bus and Unibus machines. However, with Q-bus, you need DECnet for now, for the Ethernet interface, while for Unibus you can either go with DECnet, or else the supplied Ethernet driver in the system.
>> >
>> > And yeah, I have only seen the RT-11 webserver up until now.
>> >
>> > More to come...
> Yes, this is super-exciting! Now, when you mentioned it was too big
> for non-split I&D, was that the whole web task + IP stack, or was the
> stack alone too big? I have an 11/23 (I also don't have enough RAM
> to run RSX-11M+, but that's a little more easily rectified).
Unfortunately it's specific bits of the stack that are too large. If it
had been the combination, then it would not have been a problem. RSX
don't have a problem with several tasks combined using plenty of memory.
It is individual bits that are limited to 64K.
And actually, the story goes on a little further. To make a long story
short, a device driver in RSX is normally limited to 4 KW. You can
extend that to 8KW by a little fiddling. Unfortunately, my TCP driver
needs more than 4KW of instruction space, and then 4 KW of data space as
well, which is the problem. In M+, I can handle this, since I- and
D-space are separate, so the TCP driver works with just a little
fiddling. In 11M, I would have to do some serious rewriting and possibly
manual overlaying in order to make it work. It is possible, and there
are some device drivers that actually do this kind of stuff (most
notably the terminal device driver). But it is a rather complex task to fix.
And it is actually only the TCP driver that is the problem. Evert other
component fits withing the existing address space allowed even with
split I- and D-space.
But then again, the TCP code is the most complex piece...
Johnny
--
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
On 2012-04-13 19:00, "Zane H. Healy"<healyzh at aracnet.com> wrote:
> Not sure why I didn't see the original. I have to agree, this is
> *VERY* cool, as I suspect very few hobbyists have access to a TCP
> stack for RSX-11M+ at this point! This is also the first I've heard
> of a web server hosted on a PDP-11 running on something other than
> RT-11.
>
> Are you targeting a specific Ethernet interface?
Nope. Works fine on both Q-bus and Unibus machines. However, with Q-bus,
you need DECnet for now, for the Ethernet interface, while for Unibus
you can either go with DECnet, or else the supplied Ethernet driver in
the system.
And yeah, I have only seen the RT-11 webserver up until now.
More to come...
Johnny
--
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
I worked for Zebra Systems, Inc. in Woodhaven NY which was one of the main Timex/Sinclair mail order houses.
My memory of the story is that Timex submitted a Spectrum with an NTSC RF Modulator to the FCC and it failed the approval process. They then redesigned the Spectrum to meet FCC standards, and while they were at it, added new features they felt the American market needed.
That resulted in the TS-2068 Computer.
I have one of the prototype North American Spectrum units, as well as an Interface One and Cartridge drive.
Al Hartman
Keansburg, NJ
The Terminals Wiki is open for public browsing!
<http://terminals.classiccmp.org/wiki/index.php/Main_Page>
This is a joint project between myself (username Legalize),
Jason T (username Silent700) and Ian Primus (username Sark).
I am the wiki administrator.
My intention was to create a single reference site for everything we
can find about terminals.
Right now, account creation is by request only, but I will open it up
for more public editing gradually over time (I am mostly concerned
about spambots, I don't want this wiki to become a spam ghetto like so
many others).
I'm trying to make this an authoritative source, not just a hodge-podge
of unsubstantiated opinions. To that end, everything I've put into
the wiki so far is sourced from technical documentation (linked to
manx and bitsavers and other sources) or from periodicals on Google
books like Computerworld, InfoWorld, Network World, PC Mag, etc.
Obviously there is tons more information that could be added and that
will happen over time, but there is enough there now to be useful in
looking up weird terminals that you might encounter in the wild.
One nice thing about Google books is that they index the advertising
as much as they index the articles. I'm not sure that traditional
search databases like Nexus/Lexus do that. It has meant that I have
been able to find lots of information on terminals through
advertising, including some technical specifications and photos.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 version available for download
<http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/>
Legalize Adulthood! <http://legalizeadulthood.wordpress.com>
Hi,
I recently picked up a PET 2001-8. It has a video issue...see
http://imgur.com/PKc97 (disregard the black diagonal scan lines...digital
camera artifact).
I seem to remember reading something about a similar issue, but Google is
not returning anything. Does anyone have any leads or ideas?
Thanks,
Win
On 13 Apr 2012, at 16:43, cctalk-request at classiccmp.org wrote:
>>
> I mean make KryoFlux do what it was designed to do. Whatever that is. I
> assume make perfect images of disks.
>
KryoFlux was designed to deliver unaltered flux data off floppy disks, making it possible to get the lowest read possible. Certain drives or devices, like the 1541, won't spit out what's on the platter, but interpreted data. This means such data can usually be used (if transferred right) for emulation, but it's usually impossible to write back as copy protection mechanisms usually come with ambiguity or other methods that make it impossible to write such data back to disks.
On top of that the 1541 can't read the index, which some protections make use of - when creating a disk. By reading a start mark on track A and then stepping to track B you can try and read a required sequence of data that will be impossible to:
a) read in emulation, unless you tweak the data read and spin it around the virtual index as long as it matches. The reason is you don't know which stepping the drive does when reading the disk at the time you image the disk.
b) write back to disk, unless you have some aid, e.g. a drive equipped with an index so you can time your writes.
There are other things that read back differently (=unaltered or mostly unaltered) through a normal drive.
To fully make use of KryoFlux you will a HD 5.25" floppy drive equipped with a -8 stepping mod so you can read flippy floppy disks. If you go for the more hobbyist approach, you can as well add a fake index mod, and read the flip side with wrong index data.
Here's some more things to read about the problem:
http://forum.kryoflux.com/viewtopic.php?f=3&t=3#p1991
This video explains how to mod a drive...
Part 1: http://www.youtube.com/watch?v=WcqluH7dEj4
Part 2: http://www.youtube.com/watch?v=wGxPGavShcE
Part 3: http://www.youtube.com/watch?v=aW65ynGGiFk
>> Do you want access to the contents of the files, or are you archiving
>> them?
>
> I want to know how to use KryoFlux and make it work with Commodore 1541
> floppies.
As said above, you need a HD 5.25" drive, which usually needs to be modded. Unless you would want to cut open your disk jackets, remove the platter and place it in a jacket with two index holes.
At the moment, KryoFlux will dump C64 disks as .D64 and .D64 with errormap which will allow for using simple protections. More advanced stuff will need .G64 or ultimately .IPF files. .G64 support is being added as I write these lines.
Enjoy.
Christian Bartsch | KryoFlux Products & Services Limited
cb at kryoflux.com | www.kryoflux.com
80 Allington Way | Maidstone | ME16 0HN | United Kingdom
Incorporation at Companies House, Cardiff, Company No. 07370567
Directors: Richard Rayner, Christian Bartsch
On 2012-04-14 00:11, "E. Groenenberg"<quapla at xs4all.nl> wrote:
> Wow, very nice!
>
> Makes me to get more energy in getting the 11/70 running again.
Please do. All running PDP-11s are nice!
> I for one would definitely like to see the ftp& telnet server
> parts. Being able to connect to, from and between 2 machines running
> RSX would be a major feature for this O.S.
Yes. And that will come. And it will be better than TCPware, or other
implementations out there. I have some nice ideas...
> Sure, there is/was TCPWare and I had a demo key, but the tk50 media
> got damaged making that a dead end.
I think the image for TCPware is possible to find on the net. And if you
have a key, then that problem is also solved...
> Just wondering, how 'big' is the http task?
Small. 40 disk blocks. The memory requirements are about 5KW of
instruction and 5KW of data.
But it does use the supervisor RMS library, and the resident BASIC+2
library, so that memory is in addition.
I'm working on some more tweaks to this, which might grow it a little
more, but it's pretty cool already.
Johnny
--
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
On 2012-04-13 16:43, "Rod Smallwood"<rodsmallwood at btconnect.com> wrote:
> Sub zero cool!
> What's the hardware?
MIM (which is also MADAME) is actually an emulated PDP-11/74 running
under E11. Bog standard PC otherwise.
But I'm also running this on a real 11/93 at home, but that machine
don't have a public IP address.
Johnny
>
> Regards
> ?
> Rod Smallwood
> ?
> ?
>
> -----Original Message-----
> From:cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org]
> On Behalf Of Johnny Billquist
> Sent: 13 April 2012 13:40
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Web server running on RSX-11M-PLUS
>
> Ok. I just thought I'd stir some interest and just general noise by
> announcing that I've written a small web-server running under RSX.
> It's written in BASIC+2, and uses the TCP/IP stack for RSX that I've
> also written. There are probably a bunch of bugs and issues still
> around, so I'm happy to take any bug reports, comments or whatever.
>
> The url ishttp://madame.update.uu.se/, and if anyone is curious about
> the code, it's at mim.update.uu.se (same machine, other IP), under
> MIM::DU:[HTTPD]WWW.B2S (also on HECnet)
>
> If people have any interest in this stuff, or something else/more, I'm
> interested in hearing about it. The TCP/IP stack will eventually (soon)
> be available for others to download and use, and apart from the web
> server, I've also written a telnet client, and a few small services
> under TCP, as well as some tools for administration. I have some
> polishing to do, I need to finish a DNS resolved, and I'd like to also
> finish FTP and a telnet server, but I might be open to distributing
> things before I've finished all those things, especially if someone is
> interested in helping writing stuff.
>
> I have interfaces completed for BASIC+2, PDP-11 C, Macro-11. FORTRAN 77
> should also work, but I haven't tried it yet.
>
> This all runs under RSX-11M-PLUS V4.6, but I think it should be possible
> to get running under almost any M+ version, but there might be some
> hacking needed for some versions.
> It will not work under 11M, and I never expect it to. One or two drivers
> as well as one or two tools really are big enough that I need to use the
> split I/D space feature in M+. Rewriting stuff to not need that is way
> too much work.
>
> Johnny
>
> -- 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
--
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
Guys Last chance on this TRS-80 Magazines and books, enough to fill the
back of a small car.
Its free if you come to my door to get it, Otherwise its headed to the
trash monday.
Steve Landon
Flushing MI
Is anyone here aware of a gizmo that will let me plug a USB mouse into an
ADB socket? I'm trying to come up with a way to shoehorn modern optical
mouse guts into a classic Macintosh mouse.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
Hello, especially to people on the west coast -- because it's 2:16AM ET
right now -- I've got a vintage computer image that for which I need
some GIMP or Photoshop assistance; any experts out there tonight? If so,
then please email me directly, or better yet call me -- 646-546-9999 --
I'll be up until about midnight PT / 3am ET. Thanks!! - Evan
Is there any kind of sensible maximum limit for the number of directory
entries that a CP/M disk may contain? Or did every vendor just do their own
thing (probably!) and it's preferable to just keep parsing from the start
of the directory area until either the end of the media is reached, or a
location identified as file data by a previous entry is encountered?
And, related to that, if the directory area of a CP/M disk spans multiple
tracks, was there a standard for whether it iterated head-first (in the
event of media with multiple heads) or cylinder-first? Or does code have to
cope with both possibilities?
I'm just pulling some data off some QX-10 floppies (none of which seem to
take up more than a track for the directory area), but it seems like a good
idea to make it as generic as possible.
cheers
Jules
On 14 Apr 2012, at 00:11, cctalk-request at classiccmp.org wrote:
> If "flippies" are the only problem, . . .
> There IS enough flexibility and slack in the jacket to be able to
> CAREFULLY punch the other jacket holes (one on each side) without
> disassembly, using a very ordinary handheld hole punch. My first retail
> product "Berkeley Microcomputer Flip-Jig" was a plexiglass pocket jig for
> marking the positions of where to punch. The "deluxe" version, and the
> 8" versions, also had a jig for installing center hole re-inforcers.
Fred,
yes, the index hole is the only real problem. Tell a collector to punch his disks and then start running... :-)
Good luck.
Christian Bartsch | KryoFlux Products & Services Limited
cb at kryoflux.com | www.kryoflux.com
80 Allington Way | Maidstone | ME16 0HN | United Kingdom
Incorporation at Companies House, Cardiff, Company No. 07370567
Directors: Richard Rayner, Christian Bartsch
Hello All,
I was considering buying KryoFlux to read and write Commodore disks. Has anyone done this ? From what I gather you just get the board and you can get the floppy cable and a power supply and power cord. But you need to buy a HD PC floppy drive and then can read the Commodore disks. That is Commodore 1541 disks. Does this sound right ?
Jeffrey Brace
>
>The mms default call to cc is like this:
>cc /def=("FEAT_NORMAL","HAVE_CONFIG_H","FEAT_GUI_MOTIF" ) /opt/prefix=all
>/include=([.proto],decw$include:) BUFFER.C
>
Hopefully, it should be possible to get MMS to not optimise when compiling
blowfish.c and sha256.c and to optimise when doing the other compilations.
I am not familiar enough with MMS to know how to do this.
Alternatively, if you compile the two files involved outside of MMS, you will
also need to perform the link step afterwards.
>
>Interestingls help cc/opt onli has those documented options:
>
>CC
>
> /OPTIMIZE
>
> /OPTIMIZE[=option] (D)
> /NOOPTIMIZE
>
> Controls whether or not the compiler performs code optimization.
> /OPTIMIZE has the following options:
>
> [NO]DISJOINT Directs the compiler to optimize the generated
> machine code.
>
> [NO]INLINE Specifies whether the compiler is allowed to perform
> the function inline optimization.
>
>So my question is, what should /opt/prefix=all so in this case?
>
/prefix=all is not related to optimisation - the author has just put the
two qualifiers next to each other. /prefix=all directs the compiler add the
prefix "decc$" in front of the names of all runtime library functions.
I have tested further and it appears that /optimise=disjoint is triggering
the problem.
>
>Yes, I have compiled the entire source with the crypto features commented
>out, and yes I can compile blowfish.c with that cmdline:
>
>$ cc /def=("FEAT_NORMAL","HAVE_CONFIG_H","FEAT_GUI_MOTIF" ) /NOOPT
>/include=([.proto],decw$include:) BLOWFISH.C
>
>..and it compiles sha256.c too.
>
Great. You may need to compile them with /prefix=all added to the command line
if problems show up with names of runtime library functions at link time.
However, I suspect that /prefix=all is probably the default anyway.
You should be able to use a command line like:
$ cc /def=("FEAT_NORMAL","HAVE_CONFIG_H","FEAT_GUI_MOTIF" ) /prefix=all
/include=([.proto],decw$include:) /optimise=(inline,nodisjoint) BLOWFISH.C
>
>Is there further documentation about the compiler optimizations somwhere
>available?
>
There could be slightly more detail about optimisation in the compiler manual
but it is highly unlightly that the manual would list additional command line
qualifiers that are not documented in the online help. The online help comes
with the compiler and normally documents all the available qualifiers.
The alpha (and presumably ia64) compilers are quite different to the VAX
compilers internally and may have different options relating to optimisation
so it is important to consult the correct manual.
Regards,
Peter Coghlan.
I don't recommend watching this (typical network TV acting and feeble
storyline) but it does feature my IBM 026 at the 17:00 mark:
http://www.hulu.com/watch/318646/bones-the-crack-in-the-code
Here is my baby:
http://www.vintage.org/gallery.php?grouptag=IBM026
It works (thanks to the old farts who restored the IBM 1401 at the
Computer History Museum).
--
Sellam Ismail VintageTech
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintagetech.com
Whatsoever a man soweth, that shall he also reap...The truth is always simple.
http://www.google.com/imgres?imgurl=http://yahozna.dyndns.org/
computers/cdcterminal/CIMG1330.JPG&imgrefurl=http://
www.classiccmp.org/pipermail/cctech/2008-February/
052537.html&usg=__1fV1PKo3sAiJ9Wg7Uo9Hi8yipYU=&h=1728&w=2304&sz=1734&hl=
en&start=28&zoom=1&tbnid=qPJXAYIkwqa-
cM:&tbnh=113&tbnw=150&ei=oEOGT67UIenj0QGehIz6Bw&prev=/search%3Fq%3Dcdc
%2Bterminal%26start%3D21%26hl%3Den%26sa%3DN%26tbm%3Disch%26prmd%
3Divnsfd&itbs=1
it's a VUCOM 1 made by CDC
ok,the post is a few years old but hey...you've posted one of the
rare photo of a VUCOM 1 online !...
if you have found more info on it,let me know,I've got one home.
JF
Got a nice complete Apple IIGS for sale
2 3.5 drives
Has a 40MB CMS SCSI Hard Drive and SCSI Card- Will include a 1GB bare
drive so you can add more space
1MB RAM Expansion Card
AE SonicBlaster SoundCard
Included will be GS/OS System 6 on Disk so you can set the system up to
your specifications.
$200 dollars + Shipping or come pick it up.
Thanks
Steve
Does anyone here know anything about the ROMs to the Commodore 1591 floppy
drive? The ROM from this prototype was supposedly dumped and sent on to
ftp.funet.fi, but it's not there.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?