AS/400 9404 and TWINAX questions...

From: Ron Hudson <ron.hudson_at_sbcglobal.net>
Date: Mon Sep 27 12:58:28 2004

On Sep 27, 2004, at 9:46 AM, jim stephens wrote:

> ... There is no
> other OS than OS/400, IBM did publish full specs to allow anyone to
> write
> their own OS but no-one ever did. ...
>

In one of my jobs I worked for the communications product div of
Novell, they were trying
to port netware to the AS400, but the simulated machine the AS400
presents was not effiecient for
Novell, they could not get the server to run well enough, And IBM would
not release the actual
machine instruction set so the server could be written at the lower
level (AS400 machines all run
a simulator of an imaginary machine.. They do this so that all models
of the AS400 are binary-compatible.)

I think the imaginary machine's instruction set was called "MI" for
Machine Interface???
Received on Mon Sep 27 2004 - 12:58:28 BST