> On Apr 21, 2016, at 2:44 PM, Paul Berger <phb....@gmail.com> wrote: > > > > There was definitely a XT/370 and likely an AT/370 as well the processor on > the the 370 card in these machines was rumoured to be a modified Motorola 68K > with special microcode to execute 370 instructions. These machines ran a > modified version of VM.
It was more than a rumor. If I recall, there was an article about it in the IBM Systems Journal. > > The 9371 system used PS/2 mod 80 system boards for I/O processors and had a > microchannel card sandwich in them that was the 370 processor, I do not > believe they could run MVS but they could run VM and VSE. I recall seeing a few of the prototypes in one of our labs in Boca. We had them because the I/O was SCSI and we were doing the cached microchannel SCSI cards (they weren’t specific to the 9371). I did the AIX PS/2 drivers for those cards. TTFN - Guy