[Intel-devsys] irmx-80 diskettes

Jack Mcmullen forjack842 at aol.com
Fri Aug 16 15:40:15 MDT 2019


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>
 To: Herb Johnson <hjohnson at retrotechnology.com>
 Cc: Discussion list for Intel development systems <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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