For some reason irmx-86 seems to be one of the things I documented the least well. There's some details on my installation at https://www.smbaker.com/setting-up-an-irmx86-operating-system-on-a-multibus-86-30-vintage-computer, but I don't know that it has instructions on recompiling rmx and enabling the bubble devices. I know somewhere I have notes on that....
Scott On Fri, Jul 3, 2026 at 2:12 PM Ken Seefried <[email protected]> wrote: > Scott...if you've documented your iRMX adventures anywhere, I doubt I'm > the only one who would be really interested in it. I even have an iSBX > bubble memory board. > > KJ > > On Fri, Jul 3, 2026 at 11:24 AM Scott Baker <[email protected]> wrote: > >> I believe back when I was looking into this that I saw some of the boards >> that used the 80130 available on eBay. I hesitated to buy one, because I >> had no confidence I would be able to get the rest of the software stack >> working with it. As Ken mentioned, it's only part of iRMX there. Just the >> Nucleus, I think. Now I have managed to do a custom build of iRMX86 (to >> enable bubble memory), and there is a configuration menu where you can turn >> features on/off, so maybe there is a way to enable Nucleus-in-80130. It >> would be a very cool project to pursue. >> >> Scott >> >> On Fri, Jul 3, 2026 at 7:06 AM Ken Seefried via cctalk < >> [email protected]> wrote: >> >>> There is some documentation for the i80130 in the iRMX databooks (see: >>> https://bitsavers.org/pdf/intel/iRMX/). There's additional info in the >>> Intel 8086 developers manuals of the time, as well as the multibus boards >>> that used it (iSBC86/30?). As I understand it, it doesn't have *all* of >>> iRMX in ROM, so you still need additional software to make a system. I >>> have a couple I haven't yet taken time to do anything with. >>> >>> It is my understanding (probably wrong) that there is debate over >>> wether the 80150 actually shipped, and if so, did it ship in volume. >>> I've >>> never seen one nor know anyone who claims they have, but CP/M-86 isn't my >>> thing, so I'll leave one of the many experts around here to chime in. >>> YMMV. >>> >>> N.B.: If you're shopping, you want the "i80130-2", *not* the "i80130-6" >>> or >>> "i80130-A". The former has the iRMX ROM; the latter is ROMless and was >>> used for the integrated peripherals. See: >>> https://www.cpushack.com/2017/03/12/when-intel-runs-out-of-chips/ >>> >>> KJ >>> >>> On Fri, Jul 3, 2026 at 6:34 AM Holger Veit via cctalk < >>> [email protected]> >>> wrote: >>> >>> > Hi all, >>> > >>> > Around 1981, Intel made a 8086 companion chip named _operating system >>> > processor_ (i80130, and i80150, resp.) which comprised a ROM and some >>> > interrupt logic. The 80130 contained sort of a BIOS for iRMX86, the >>> > 80150 supported CP/M-86. Few info can be found at >>> > https://en.wikipedia.org/wiki/Intel_80130, and a datasheet exists at >>> > alldatasheet.com. >>> > Some lore is also found in some history pages, but not much more than >>> > the datasheet contains. >>> > >>> > Was the ROM content of both chips dumped and is available on the >>> > Internet somewhere, or does someone have such a system (supposedly some >>> > iAPX86/30) and is willing to make this public, e.g. upload to >>> bitsavers? >>> > >>> > THX to any pointers >>> > >>> > Kind Regards >>> > Holger >>> > >>> > >>> > >>> >>
