Monitor Program for 86/30 SBC

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Vale, Martyn

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Sep 25, 2025, 12:25:09 PMSep 25
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Hi All,

I'm looking for a monitor program to run on the 86/30 Multibus Card.

I've found some binaries on Bill's page here using the ISDM 86 code:

http://www.nj7p.info/Computers/Software/Mon.html

I've also found the source on Mark Ogden's page here:

https://mark-ogden.uk/files/intel/Intel86/isdm.86/3.2/

The problem is I'm going to need to move the Data and Stack Segment and there's no instructions on how to reassemble and I can't even see which is the main source file assuming it's there. Can anyone give me some pointers please ?

Thanks
Martyn.

scott baker

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Sep 25, 2025, 12:30:37 PMSep 25
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The knowledge has already evaporated from my brain, but I feel like I've crossed that bridge once already, when I replaced the 386 board in my 310 with an 8086 board (I later replaced it with a 286, but it was 8086 for a while). I might have even mentioned here which ROMs I used -- will have to go back and look to see if I have any notes.

Scott

Mark Fisher

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Sep 25, 2025, 2:27:36 PMSep 25
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Hi Martyn,

It's been a while since I posted anything here.  I have assembled ISDM for a different multibus board.  I think it is an 88/25 if I remember correctly.  There is little source to see but if you are just wanting to relocate segments.  That can be done in the files for the package.  I think there is even one specifically for the 86/30 in there.  The submit files do all the work and I think it creates the eprom images as well.  I will have to go back and look at the process as it has been a while since I did it.  

If you have an MDS Series-III (with the 86 board) there is a program that will use the serial port that is on the RPC board.  You can control and download programs to your target system that has the iSDM EPROMS installed on it.  This is how I have mine setup at the moment.  My intention was to write some code to exercise the ethernet board set.  While I could do this with the set plugged into the MDS, the address it uses is the same as the disk controller card.  I hope to sometime have a simulated NRM on my network and boot ISIS-III to have network storage.

Take a look at the files on the iSDM disk.  If you can't work it out.  I will dig into it and help.

Best Regards, Mark

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Mark Fisher

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Sep 25, 2025, 5:03:04 PMSep 25
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Hi again Martyn,

The file to run is 8635.a86.  Modify it if you have changed the communication channel or interrupt location on your board.  Then if you want different locations for your segments, modify cnf86.csd in the loc86 section.

Once that is done,  just run: SUBMIT CNF86 8635.  It should build your image.  After that run SUBMIT PROM86 8635.  It uses ipps.  You should end up with some .evn & .odd files.

Best of luck!

Regards, Mark

mark.p...@btinternet.com

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Sep 25, 2025, 7:02:21 PMSep 25
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The source directory contains the several *.csd file which contain the sequence of commands to build the various configurations. 
However if you look in my intel80tools GitHub site under the src directory you will find an ISDM subdirectory which contains the build makefile i created to perform the build
Mark

Regards
Mark Ogden
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Subject: intel-devsys Re: Monitor Program for 86/30 SBC
 
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Vale, Martyn

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Sep 27, 2025, 5:55:06 AMSep 27
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Hi Mark,

 

Thanks, that’s really helpful I’ll give it a try.

 

Bye

Martyn.

 

From: intel-...@googlegroups.com <intel-...@googlegroups.com> On Behalf Of Mark Fisher
Sent: 25 September 2025 22:02
To: intel-...@googlegroups.com
Subject: Re: intel-devsys Monitor Program for 86/30 SBC

 

⚠ Caution: External sender

 

Vale, Martyn

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Sep 27, 2025, 5:59:10 AMSep 27
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Hi Mark,

 

I had a look at your GitHub site and managed to do the initial make, but couldn’t work out how to use the makefile.ipps to create the prom images.

 

Thanks

Martyn.

 

 

Sent: 26 September 2025 00:02
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mark.p...@btinternet.com

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Sep 27, 2025, 4:28:41 PMSep 27
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Martyn
The makefile.ipps isn't needed, it was from before I created my aomf2bin tool.

The odd/even byte proms are created as per the original submit files, see the *.ODD and *.EVN files. The single byte proms are in *.PRM. All are binary images.

if you believe there omissions please clarify.



Regards 
Mark

From: intel-...@googlegroups.com <intel-...@googlegroups.com> on behalf of Vale, Martyn <m.v...@ucl.ac.uk>
Sent: 27 September 2025 10:59
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Subject: RE: intel-devsys Re: Monitor Program for 86/30 SBC
 

mark.p...@btinternet.com

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Sep 27, 2025, 4:36:02 PMSep 27
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Martyn
I forgot to note, if you want to use the makefile.ipps file for some reason, you need to rename the files to lowercase and run make -f makefile.ipps

The current makefile matches the uppercase names and keeps all files with uppercase as the MSDOS based tools create uppercase output files. The older makefile.ipps jumped through hoops to keep renaming the files, it was simpler to stay with just upper case.


Mark

Vale, Martyn

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Sep 28, 2025, 7:05:01 AMSep 28
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Hi Mark,

 

Thanks for the info.

 

make 8635

 

followed by

 

make 8635.EVN

 

produced the ROM images. Sorry I missed the PROM bit in the Makefile.

 

Thanks

Martyn.

 

 

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Sent: 27 September 2025 21:36
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Subject: Re: intel-devsys Re: Monitor Program for 86/30 SBC

 

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mark.p...@btinternet.com

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Sep 28, 2025, 7:27:27 AMSep 28
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Martyn
Just doing make   will create all the PROMS
Mark

Sent: 28 September 2025 12:04

mark.p...@btinternet.com

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Sep 28, 2025, 8:13:20 AMSep 28
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Martyn
I have just posted an update to the makefile to Github.
For some reason make wasn't picking the dependency to build the omf file to prior to making the proms. I have modified the makefile to force the dependency. So now

either
make 8635.EVN
or 
make 8635.ODD
should build both 8635.EVN and 8635.ODD without having to do a make 8635 before hand

For the 8bit CPU code e.g.  8825.A86 then the equivalent command is
make 8825.PRM


Mark

From: mark.p...@btinternet.com <mark.p...@btinternet.com>
Sent: 28 September 2025 12:27

Mark Fisher

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Sep 28, 2025, 10:02:11 AMSep 28
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Does anyone have a PDF of an actual manual for iSDM?  The catalog pages shows most of the commands but not all of them.  I suspect the manual will show how to call routines in iSDM to print messages on a terminal & appears to indicate that file access is possible from the MDS.  

Best Regards,  Mark Fisher

William Beech

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Sep 28, 2025, 3:53:22 PMSep 28
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Mark,

Attached are some files about iSDM.

Bill
iSDM debugging applications.pdf
462921-001_iRMX_Bootstrap_Loader_and_iSDM_Monitor_Mar89.pdf

Vale, Martyn

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Oct 4, 2025, 8:04:22 AMOct 4
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Hi Mark,

 

Just got round to trying this and the new makefile doesn’t seem to work, whatever version you try to make it says “No rule to make target”

 

Only make clean and make distclean seem to work.

 

 

C:\MarkO_Oct25\intel80tools-master\src\isdm3.2>..\..\make 8635.EVN

make: *** No rule to make target '8635.EVN'.  Stop.

mark.p...@btinternet.com

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Oct 4, 2025, 8:50:28 AMOct 4
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Martyn
If you are using my latest makefile it now uses lowercase again. So try make 8636.even
Mark

Regards
Mark Ogden
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Sent: Saturday, October 4, 2025 1:04:12 PM

Vale, Martyn

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Oct 4, 2025, 10:44:03 AMOct 4
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Sorry still doesn’t work tried

 

make 8635.evn

 

Which I assume is the correct line.

 

make 8635.even

 

Doesn’t work either both fail with “no rule to make target”

mark.p...@btinternet.com

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Oct 4, 2025, 11:11:25 AMOct 4
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Martyn
Please check you have the latest version of my GitHub repo the makefile uses some of the newer tools. 
Then try make without any arguments. If this doesn’t work please send me the make output
Mark

Regards
Mark Ogden
Sent: Saturday, October 4, 2025 3:43:53 PM
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