[Intel-devsys] irmx-80 diskettes

Bill Beech (NJ7P) nj7p at nj7p.info
Fri Aug 16 19:34:54 MDT 2019


Jack,

I have one iSBC 202 here.  I have  not tested it.  The ZX-200A should be 
code compatible with it.  We shall see!

Bill

On 8/16/2019 2:40 PM, Jack Mcmullen wrote:
> Hi Bill and all,
> The USB Imager/Creater is a direct SBC202 communicator. Was the only 
> way on my side I could do an image. Understand your other hardware. 
> Thought all of us had at least that basic configuration for 80/85 
> stuff. USB file movement tools goes thru ISIS.
> Jack
>
>
> -----Original Message-----
> From: Bill Beech (NJ7P) <nj7p at nj7p.info>
> To: intel-devsys <intel-devsys at lists.brouhaha.com>
> Sent: Fri, Aug 16, 2019 2:32 pm
> Subject: Re: [Intel-devsys] irmx-80 diskettes
>
> Jack,
> Indeed, that is one proposed solution.  May be the fastest.
> I need to give that a try with 740 equivalent disk drive on the 
> ZX-200A and MDS-II.
> I also need a way to image other disks in 8-, 5 1/4- and 3 1/2-inch 
> format.  I don't want to loose some of the stuff I have here so I will 
> continue with the Adaptec controller and an old computer with a AT bus 
> and DOS to connect my collection of disk drives.
> This is a good discussion.
> Bill
> On 8/16/2019 2:21 PM, Jack Mcmullen wrote:
> Available are my USB and IMAGER/CREATER tools you can make an image of 
> the DD disks via a SBC202. or copy the DD/SD files only to a PC 
> readable stick
> Jack
>
>
> -----Original Message-----
> From: Bill Beech (NJ7P) <nj7p at nj7p.info> <mailto:nj7p at nj7p.info>
> To: Herb Johnson <hjohnson at retrotechnology.com> 
> <mailto:hjohnson at retrotechnology.com>
> Cc: Discussion list for Intel development systems 
> <intel-devsys at lists.brouhaha.com> <mailto:intel-devsys at lists.brouhaha.com>
> Sent: Fri, Aug 16, 2019 11:28 am
> Subject: Re: [Intel-devsys] irmx-80 diskettes
>
> Herb,
>
> On 8/15/2019 4:19 PM, Herb Johnson wrote:
> > Thanks Bill, this is very comprehensive. A few comments.
> >
> > You might do the easy thing first: read off the single-density disks.
> > YOu could do that in CP/M on a CP/M box, or with Dunfield's imagedsk
> > on an MS-DOS box. In any event you can verify the disk scheme.
> Ah, but how do I connect an 8-inch disk to a DOS box.  I have done it in
> the past and may need to do it again.  I have one DSDD 8-inch drive and
> power supply that I could patch together to interface with the the
> AH-1520 FDC that works with the Dunfield imagedsk.  May need to use an
> SCSI HD on that controller.  We will see.
> >
> > DD M2FM is harder. But you might ask Mark Ogden about it. (now this
> > conversation is in the Intel-dev list, Mark can speak for himself.)
>
> Jump in there, Mark.  My idea would be to write a program to transmit an
> Intel hex file for each track to the PC.
>
> >
> > He's created a lot of files from Intel disk sources. He's rewritten
> > Dunfield tools to run under Windows. He may have a tool to run under
> > ISIS, or be willing to write one.
> >
> > https://github.com/ogdenpm/disktools/tree/master/unidsk
> I will check these out.
> >
> > Unpacks an isis .imd or .img file into the individual files.
> >     Supports ISIS II SD, ISIS II DD, ISIS III and ISIS IV
> >
> > There is an old CP/M program to read ISIS diskettes, look in the
> > CPMUG. I retrieved it decades ago to read DEC RT-11 diskettes. (And I
> > did tonight, it's in CPMUG #1. I'll zip it up and send it to Bill.)
> >
> > No hurry on this, Bill of course, you have a full plate.
> So many projects, so little time!
> >
> > Regards,
> > Herb
>
> Bill
> >
> > On 8/15/2019 5:38 PM, Bill Beech (NJ7P) wrote:
> >> Herb,
> >>
> >> Indeed I have 5 each 8-inch disks here for RMX/80.
> >>
> >> They are:
> >> 9500013-03 Ver 1.3, RMX/80 Real-time Multitasking executive for iSBC
> >> 80/20 and 80/20-4, SD.
> >> 9500018-03 Ver 1.3, RMX/80 Real-time Multitasking executive for iSBC
> >> 80/10, SD.
> >> 9700016-03, Ver 1.3, RMX/80 Real-time Multitasking executive for iSBC
> >> 80/20 and 80/20-4, DD.
> >> 9700020-03, Ver 1.3, RMX/80 Extensions for iSBC 80/10, iSBC 80/20,
> >> 80/20-4, and 80/30, DD.
> >> 9700021-03, Ver 1.3, RMX/80 Real-time Multitasking executive for iSBC
> >> 80/10, DD.
> >>
> >> The SD disks should not be hard to copy.  The DD may be trickier.  I
> >> suspect they are in 3740 format SD but M2FM format DD.  I suspect I
> >> will need to write a program for the MDS II to create an image file
> >> on the PC.  I need to think about it some more, once I get the other
> >> board for Jon H. done and both tested. And I need to get some
> >> simulators to compile again and run, at least as far as the monitors
> >> are concerned.  I also need to get versions of CP/M-80 to run on the
> >> OEM simulators.  I also have several books I have collected to scan.
> >> So my queue is pretty full!
> >>
> >> Bill
> >>
> >> On 8/15/2019 9:34 AM, Herb Johnson wrote:
> >>> Biil, someone asked me about 8-inch diskettes with iRMX-80 on them.
> >>> Of course I don't have them. So I started looking around for this.
> >>> This doesn't seem to be available "on the Web" or among the
> >>> intel-dev archives.
> >>>
> >>> I searched your Intel Google Drive and then the archive of our
> >>> Intel-dev discussion, for mention of iRMX-80. The only significant
> >>> mention is your Sept 2018 purchase of five iRMX-80 diskettes from
> >>> eBay. I didn't find subsequent email traffic on your results with
> >>> those diskettes. And I don't see any iRMX80 disk images in any of
> >>> the by-person folders in your Google drive. I checked Mark Ogden's
> >>> gethub; no iRMX80 stuff there. One other reference but it seems a
> >>> dead end. I'll detail it as a PS.
> >>>
> >>> Bill, it is still a good "find" to have disks with iRMX-80. Thanks
> >>> for spending the $$$ to get them. I know doing work is tough for
> >>> you; there's no priority for this just because somebody asked me
> >>> about it. But what's the status of those physical diskettes, and
> >>> were you able to image them in some fashion?
> >>>
> >>> Regards, Herb
> >>>
> >>> PS: Jon Hales did something with a bunch of Intel diskette
> >>> label-descriptions posted around Aug 2018. Mark Ogden commented
> >>> about the list, and mentioned this:
> >>>
> >>> 950017.06 looks like irmx80 v2.4
> >>>
> >>> I have no idea what Jon was doing. But I could not find a disk-image
> >>> with that 950017.06 designation.
> >>>
> >>>
> >>
> >>
> >
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