[rescue] AS/400? Anyone?
Geoffrey S. Mendelson
gsm at mendelson.com
Thu Jan 17 23:42:44 CST 2008
On Thu, Jan 17, 2008 at 11:30:20PM -0600, Jonathan C. Patschke wrote:
> They run it as natively as the original AS/400s did. The original
> AS/400 systems were a 48-bit CISC system hardware-wise, but the VM was a
> 128-bit memory-mapped-everything architecture. The new ones are a
> 64-bit RISC system running the same VM architecture.
The way I interpret this is that the AS/400 ran an "improved" System 38
emulator, and the RS6000 runs a hardware assited version of the same
emulation, now ported to the RS6000.
My PC has a nameplate on it reading "IBM 3145 Processor" and runs VM/370
and MVS. Does that make it a 370/145? I don't think so, and therefore
IMHO an RS6000 effectively running the same emulation as an AS/400 did,
not an AS/400, but an RS6000.
I also interpret what you said to mean that the actual AS/400
instruction set is not emulated or run natively by anything, so that
makes it (again IMHO) dead and gone.
Geoff.
--
Geoffrey S. Mendelson, Jerusalem, Israel gsm at mendelson.com N3OWJ/4X1GM
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