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From: "Tarjei T. Jensen" <tarjei.jensen@akerkvaerner.com>
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Subject: Re: Ariane5 FAQ
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"Hyman Rosen" wrote:
> The Ariane 4 code had a deliberately unprotected conversion from
> floating point to 16-bit integer, under the assumption that overflow
> could not happen. When the overflow did happen, the computer generated
> an Operand Fault.


You seem to be unable to grasp that for the Ariane 4 that was a sound
decision.

What you are want is for random software to work the same in two different
system.

Try moving an engine controller from one engine to another and se how well
that works.

Even better, ask somebody who are into aircraft if it would be a good idea
to move software from one airplane to another without testing whether it
works.


greetings,