It's the CMU micro kernel. The hybrid "2.6" lived on in NeXTSTEP, and OPENSTEP, with various upgrades to bring it up to OS X.The RT as I understand it was a research machine, hence the BSD ports, and Mach port.What is interesting the more I dig around is that there was ROMP coprocoessor cards, and an OS/2 and DOS monitor program to let you boot BSD on the card. Peripheral IO was done on the x86 side.If RT's are rare, I can't imagine how impossible it would be to get one of those cards!The BSD assembler and linker source is in the archives too, no doubt it'll help someone make a RT emulator.
On Tue, Feb 18, 2020 at 12:54 PM +0800, "Kevin Bowling" <kevin.bowling@kev009.com> wrote:
Can you clarify what is Mach in this archive if I have a gap in my knowledge? I didn’t know the VRM had any direct relationship to MachRegards,KevinOn Mon, Feb 17, 2020 at 9:43 PM Jason Stevens <jsteve@superglobalmegacorp.com> wrote:Interesting stuff! And another version of Mach is buried in there.So the 4 csrg cd set may have updates to the romp support as it's an older version of the 5.1 kernel from 89... Not that think there is any Mach romp users.From: TUHS <tuhs-bounces@minnie.tuhs.org> on behalf of Charles H Sauer <sauer@technologists.com>
Sent: Tuesday, February 18, 2020, 5:51 a.m.
To: TUHS
Subject: [TUHS] Bitsavers' RT/PC, AIX, AOS, etc. recent additions
The Bitsavers' RSS feed (http://user.xmission.com/~legalize/vintage/bitsavers-bits.xml) seemed to me to be dominated by RT, AIX, AOS (BSD for RT), etc. stuff in the last week or so. I've only sampled a few items, but discovered a few things that I should have known (or knew and forgot?) while I was at IBM. http://www.bitsavers.org/pdf/ibm/pc/rt/ -- voice: +1.512.784.7526 e-mail: sauer@technologists.com fax: +1.512.346.5240 Web: https://technologists.com/sauer/ Facebook/Google/Skype/Twitter: CharlesHSauer