hmmm, now that you say that, it sounds familiar. was it the model 40 that could do 1620 emulation then?
<pre>--Carey</pre> > On 04/10/2024 10:25 AM CDT Jon Elson via cctalk <cctalk@classiccmp.org> wrote: > > > On 4/10/24 07:18, CAREY SCHUG via cctalk wrote: > > Nearly all the 360s were microcoded, so adding a bit more microcode let > > them emulate 1400/7000 series computers as a standard optional feature. > > (well the model 44 emulated the 1620, and probably the 95/195 could not > > emulate anything since they were hard wired). > > > The model 44 was not microcoded. It had faster floating > point than a model /50 but no decimal or string > instructions. Emulation of these was done through trap > handlers. I would assume any other machine emulators were > done by something like an emulation wrapper program - like > Virtualbox or VMware. The model 44 had no channels, there > was only direct I/O (a set of 32-bit parallel input and > output registers) and a pair of cartridge hard drives inside > the CPU cabinet. Think DEC RK05s. > > Jon
