20 Oct
2011
20 Oct
'11
3:51 p.m.
On 20 October 2011 19:03, <vintagecoder at aol.com> wrote:
From: Dave McGuire <mcguire at neurotica.com>
On 10/18/2011 04:15 PM, Rich Alderson wrote:
Vintage Coder wrote:
AIX wasn't ported to POWER, as such; it was originally /developed/ on
POWER, or at least on the ROMP RISC CPU that was the direct ancestor
of POWER. It is the original, sole, native OS of the whole
RIOS/RS6000/POWER CPU line.
It's been ported /from/ POWER at least three times.
There was an x86 port of AIX (v2, IIRC) in the late '80s, but it
didn't get anywhere and was axed. (*Checks*) It was done by Locus
Corp, says Wikipedia, not IBM.
Then there was AIX/370 for the System/370, also fairly short-lived.
In the AIX5 timeframe, working with SCO on Project Monterey,
apparently there was a port to the Itanium, as well, but it was never
released.
--
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>> When people wanted to port the IBM OS
family to x86 they wrote Hercules
>> to emulate the hardware. The OS doesn't make sense on anything but
>> System/360, 370, 390, Z, etc. It was easier to port the hardware than
>> the software.
>
> When IBM wanted to port the IBM OS family to POWER, they did the same
> thing. (Z, in your list above.)
I have no idea what you mean with this statement. AIX and OS/400 got ported
to POWER but they were never based on S/360 or its descendants. AIX as a
UNIX-like OS was probably never tightly coupled with the hardware, so it
could be ported easily.