system 36 on eBay
Michael B. Brutman
mbbrutman at brutman.com
Wed Jun 1 15:18:10 CDT 2005
>> I have code in that thing .. (Specifically the low level OS that the
36 emulator is running on top of.)
> Is that one of the machines that uses System/38 CISC hardware?
It's actually an early version of the RISC processor used in the more
modern AS/400/iSeries machines.
The memory is fuzzy now, so I may have some details incorrect. It was
around 1994 and the System 36 was long since gone, and we were deep in
product development of the new RISC based AS/400s. One use of the
partially developed machine was as a System 36 replacement - with an
emulator running on top of the partial OS of the new machine we could
make the appearance of a System 36, and at a much better speed at that.
Remember that for the port to RISC IBM had to rewrite a good portion of
the OS to accomodate the new processor and hardware architecture. The
older CISC based AS/400s used a 48 bit processor. The new ones were
using a 64 bit variant of the Power PC.
I don't think that most of the customers for the Advanced 36 (as this
box was called) were aware that they were running on a pretty advanced
PowerPC based machine. It was a nice trick.
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