Re: Rainbow Disk Imager

On Fri, Sep 15, 2017 at 1:47 AM, Christian Corti via cctalk < cctalk@classiccmp.org> wrote: > On Thu, 14 Sep 2017, Warner Losh wrote: > >> On Thu, Sep 14, 2017 at 4:05 PM, Fred Cisin wrote: >> >>> On the IBM PC/AT (5170) with 1.2M, admittedly the only one that is easily >>>

Re: Interlace/interleave, skew, side pattern (Was: Rainbow Disk Imager

> On Sep 14, 2017, at 10:44 PM, Fred Cisin via cctalk > wrote: > > ... > Alternatively, you could leave the sectors in sequential order, but not put > each data block of the file into the sector of the same number. > Thus, you could put the first data block of the file

Re: Rainbow Disk Imager

On 14/09/2017 17:02, Rod Smallwood via cctalk wrote: Hi I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73 Somewhere there is a utility that will write the images to RX50 on a DEC Rainbow 100 under MS-DOS . Anybody know where

Re: Rainbow Disk Imager

On Thu, 14 Sep 2017, Warner Losh wrote: On Thu, Sep 14, 2017 at 4:05 PM, Fred Cisin wrote: On the IBM PC/AT (5170) with 1.2M, admittedly the only one that is easily readily available, there is trivial software tweaking required to format/write "720K"/"quad" density, instead

Re: Rainbow Disk Imager

What Chuck says. +1 on ImageDisk. I also tried OmniDisk which allows you to do just about anything with the formats, including a lot of wrong things. I found it much more difficult to use, but it taught me quite a few things. I made 3 videos on YouTube about it, mostly to remember what I did,

Re: Rainbow Disk Imager

Good grief! All this discussion--about what amounts to a straightforward task. Get a PC with a 1.2M 5.25" drive and some DD floppies. Make sure it boots to MS-DOS, not Windows. Grab a copy of Dave Dunfield's ImageDisk. (on the classiccmp server, if memory serves). Use it read and make images

Interlace/interleave, skew, side pattern (Was: Rainbow Disk Imager

On Thu, 14 Sep 2017, Eric Christopherson via cctalk wrote: Does interlace mean the same as interleave? Usually. But, each manufacturer develops their own terminology, so one thing can have different names in different companies, or different things can have the same name. For example,

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 6:51 PM, Eric Christopherson via cctalk < cctalk@classiccmp.org> wrote: > On Thu, Sep 14, 2017, Paul Koning via cctalk wrote: > > > > > On Sep 14, 2017, at 4:39 PM, Warner Losh wrote: > > > > > > ... > > > I don't see where you read the first 2 tracks

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017, Paul Koning via cctalk wrote: > > > On Sep 14, 2017, at 4:39 PM, Warner Losh wrote: > > > > ... > > I don't see where you read the first 2 tracks uninterlaced, and the other > > tracks interlaced? For DOS formatted disks, that's what's required. While >

Re: Rainbow Disk Imager

On Thu, 14 Sep 2017, jim stephens via cctalk wrote: have none of the systems Fred posted, or much interest in getting them, so Here are the ones that I supported in XenoCopy (NO LONGER AVAILABLE): http://www.xenosoft.com/fmts.html#720K A PC/AT with 1.2M is the most readily available

"720K" floppies in AT (Was: Rainbow Disk Imager

For those who never had to suffer through it, in case there isn't sufficient confusion, . . . The 1.2M drives ran at 360 RPM. To handle 360K, which would be every other track and ran at 300RPM, some could switch speed to 300 RPM, while others relied on the FDC to compensate for the speed.

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 5:15 PM, jim stephens via cctalk < cctalk@classiccmp.org> wrote: > > > On 9/14/2017 3:51 PM, Warner Losh via cctalk wrote: > >> As you might tell from this thread, floppies, reading >> them, and their formatting stir way too much passion in me (for which if >> it >> was

Re: Rainbow Disk Imager

On Thu, 14 Sep 2017, Warner Losh wrote: Yea. It depends on the controller. WDC765 (or was that a clone of the NEC uP765) I'm not sure if their legal people would like it being called a "clone", but it was definitely designed to be just like the NEC 765, instead of like WD's 179x and the

Re: Rainbow Disk Imager

On 9/14/2017 3:51 PM, Warner Losh via cctalk wrote: As you might tell from this thread, floppies, reading them, and their formatting stir way too much passion in me (for which if it was too much I apologize) Warner Really fantastic timing for what a friend and I are doing.  On the topic

Re: Rainbow Disk Imager

I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73 such as: PBM 1000 Tandy 2000 . . . IBM PC/JX On Thu, 14 Sep 2017, Warner Losh wrote: Right. I didn't see the Atari on the list, which was the only one, prior to this thread,

Re: Rainbow Disk Imager

On 09/14/2017 03:27 PM, Fred Cisin via cctalk wrote: > > I have run into quite a few badly maintained drives. The innermost > (higher numbered) tracks are the most sensitive to problems. This. And you can hook a "native" 96 tpi DD drive to a PC and use Dave Dunfield's IMD to do the copying.

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 4:27 PM, Fred Cisin via cctalk < cctalk@classiccmp.org> wrote: > On Thu, 14 Sep 2017, Warner Losh via cctalk wrote: > >> And then there's Venix disks, which have both an interlace, as well as a >> skew from track to track (as well as doing one side in ascending track >>

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 4:05 PM, Fred Cisin wrote: > I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73 >>> such as: >>> PBM 1000 >>> Tandy 2000 >>> Eagle II >>> Toshiba T300 >>> Altos >>> Canon AS100

Re: Rainbow Disk Imager

On Thu, 14 Sep 2017, Warner Losh via cctalk wrote: And then there's Venix disks, which have both an interlace, as well as a skew from track to track (as well as doing one side in ascending track order followed by the other side in descending track order), but I digress... The software that you

Re: Rainbow Disk Imager

I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73 such as: PBM 1000 Tandy 2000 Eagle II Toshiba T300 Altos Canon AS100 IBM PC/JX Seiko 8610 Televideo TS1603 or IBM PC/AT (5170) with 1.2M On Thu, 14 Sep 2017, Warner Losh wrote:

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 2:50 PM, Paul Koning wrote: > > On Sep 14, 2017, at 4:47 PM, Warner Losh wrote: > > > > On Thu, Sep 14, 2017 at 2:44 PM, Paul Koning > wrote: > >> >> > On Sep 14, 2017, at 4:39 PM, Warner Losh

Re: Rainbow Disk Imager

> On Sep 14, 2017, at 4:47 PM, Warner Losh wrote: > > > > On Thu, Sep 14, 2017 at 2:44 PM, Paul Koning > wrote: > > > On Sep 14, 2017, at 4:39 PM, Warner Losh > > wrote: > >

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 2:47 PM, Warner Losh wrote: > > > On Thu, Sep 14, 2017 at 2:44 PM, Paul Koning > wrote: > >> >> > On Sep 14, 2017, at 4:39 PM, Warner Losh wrote: >> > >> > ... >> > I don't see where you read the first 2 tracks

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 2:44 PM, Paul Koning wrote: > > > On Sep 14, 2017, at 4:39 PM, Warner Losh wrote: > > > > ... > > I don't see where you read the first 2 tracks uninterlaced, and the > other tracks interlaced? For DOS formatted disks, that's

Re: Rainbow Disk Imager

> On Sep 14, 2017, at 4:39 PM, Warner Losh wrote: > > ... > I don't see where you read the first 2 tracks uninterlaced, and the other > tracks interlaced? For DOS formatted disks, that's what's required. While > screwing up the first two tracks won't affect your ability to

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 11:57 AM, Rod Smallwood via cctalk < cctalk@classiccmp.org> wrote: > > > On 14/09/2017 18:37, Rod Smallwood via cctalk wrote: > >> >> >> On 14/09/2017 17:55, Paul Koning via cctalk wrote: >> >>> On Sep 14, 2017, at 12:41 PM, Paul Koning via cctalk <

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 10:55 AM, Paul Koning via cctalk < cctalk@classiccmp.org> wrote: > > > On Sep 14, 2017, at 12:41 PM, Paul Koning via cctalk < > cctalk@classiccmp.org> wrote: > > > > > >> On Sep 14, 2017, at 12:27 PM, jim stephens via cctalk < > cctalk@classiccmp.org> wrote: > >> > >> > >>

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 10:19 AM, Fred Cisin via cctalk < cctalk@classiccmp.org> wrote: > On Thu, 14 Sep 2017, Rod Smallwood via cctalk wrote: > >> I have a bunch of .dsk RT11 400k image files I need to write to >> RX50 disks so I can boot from them on my 11/73 >> Somewhere there is a

Re: Rainbow Disk Imager

On Thu, Sep 14, 2017 at 10:02 AM, Rod Smallwood via cctalk < cctalk@classiccmp.org> wrote: > Hi > > I have a bunch of .dsk RT11 400k image files I need to write to RX50 > disks so I can boot from them on my 11/73 > > Somewhere there is a utility that will write the images to RX50 on a DEC >

RE: Rainbow Disk Imager

> There's no Linux systems, no C compilers, emulators or weird hardware > available. > > But I do have a Rainbow which is the console to the 11/73 > And the Rainbow isn't "weird hardware"? :-)

Re: Rainbow Disk Imager

maybe here ? http://oldcomputers.dyndns.org/public/pub/mirror/os2site/sw/dec/rainbow/floppy/ Am 14.09.2017 um 18:02 schrieb Rod Smallwood via cctalk: > Hi > >I have a bunch of .dsk RT11 400k image files I need to write to > RX50 disks so I can boot from them on my 11/73 > > Somewhere

Re: Rainbow Disk Imager

On 14/09/2017 18:37, Rod Smallwood via cctalk wrote: On 14/09/2017 17:55, Paul Koning via cctalk wrote: On Sep 14, 2017, at 12:41 PM, Paul Koning via cctalk wrote: On Sep 14, 2017, at 12:27 PM, jim stephens via cctalk wrote: On

Re: Rainbow Disk Imager

> On Sep 14, 2017, at 1:37 PM, Rod Smallwood via cctalk > wrote: > > ... > Sounds good. > But I have to work with what I have: > > An 11/73 with: > ... > There's no Linux systems, no C compilers, emulators or weird hardware > available. Understood. I was commenting

Re: Rainbow Disk Imager

On 14/09/2017 17:55, Paul Koning via cctalk wrote: On Sep 14, 2017, at 12:41 PM, Paul Koning via cctalk wrote: On Sep 14, 2017, at 12:27 PM, jim stephens via cctalk wrote: On 9/14/2017 9:19 AM, Fred Cisin via cctalk wrote: You have some

Re: Rainbow Disk Imager

> On Sep 14, 2017, at 12:41 PM, Paul Koning via cctalk > wrote: > > >> On Sep 14, 2017, at 12:27 PM, jim stephens via cctalk >> wrote: >> >> >> >> On 9/14/2017 9:19 AM, Fred Cisin via cctalk wrote: >>> You have some .dsk images of SSDD 96tpi

Re: Rainbow Disk Imager

> On Sep 14, 2017, at 12:27 PM, jim stephens via cctalk > wrote: > > > > On 9/14/2017 9:19 AM, Fred Cisin via cctalk wrote: >> You have some .dsk images of SSDD 96tpi for 11/73. > I have some also, and would love if there is a writeup of a known working > procedure to

RE: Rainbow Disk Imager

From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Rod Smallwood via cctalk [cctalk@classiccmp.org] Sent: Thursday, September 14, 2017 12:02 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Rainbow Disk Imager Hi I have

Re: Rainbow Disk Imager

On 9/14/2017 9:19 AM, Fred Cisin via cctalk wrote: You have some .dsk images of SSDD 96tpi for 11/73. I have some also, and would love if there is a writeup of a known working procedure to use as a reference. Having a list of programs and systems is great, but I'd also like to know a few

Re: Rainbow Disk Imager

Because I don't have any of those. I'm nearly all DEC here Rod On 14/09/2017 17:19, Fred Cisin via cctalk wrote: On Thu, 14 Sep 2017, Rod Smallwood via cctalk wrote:   I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73

Re: Rainbow Disk Imager

On Thu, 14 Sep 2017, Rod Smallwood via cctalk wrote:   I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73 Somewhere there is a utility that will write the images to RX50 on a DEC Rainbow 100 under MS-DOS . Anybody know where to

Rainbow Disk Imager

Hi   I have a bunch of .dsk RT11 400k image files I need to write to RX50 disks so I can boot from them on my 11/73 Somewhere there is a utility that will write the images to RX50 on a DEC Rainbow 100 under MS-DOS . Anybody know where to find it? Rod -- Wanted one pdp-8/i rocker