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 < cctalk(a)classiccmp.org&gt; 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 &lt;smbaker(a)gmail.com&gt; 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 < > cctalk(a)classiccmp.org&gt; 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 < >> cctalk(a)classiccmp.org&gt; >> 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 >> > >> > >> > >> >