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 >> > >> > >> > >> >
