Re: Emulators Philosophy

In article <dfi582$4js$1$8302bc10@xxxxxxxxxxxxxxxx>, Paul E. Bennett
<peb@xxxxxxxxxxxxxxxxxx> writes
>Chris Hills wrote:
>
>> In article <dfejk6$ggo$1$830fa17d@xxxxxxxxxxxxxxxx>, Paul E. Bennett
>> <peb@xxxxxxxxxxxxxxxxxx> writes
>>>Chris Hills wrote:
>>>
>>>>>This is a phased testing approach
>>>>>and is, in my opinion, quite a valid consideration. I would not expect
>>>>>the testing to be carried out under the emulator alone. I would hope,
>>>>>however, that you would rather shy away from using such a complex and
>>>>>difficult processors for a safety critical system.
>>>>
>>>> All processor are complex these days. Also safety critical systems are
>>>> getting more complex.
>>>
>>>There are still, fortunately, some processors around that are reasonably
>>>simple in their architecture which would be more suitable for a High
>>>Integrity application.
>>>
>>
>> Such as?
>
>Many of RISC chips would be simpler than the CISC processors that many here
>seem to use. The RISC devices that I think are worth looking at are:-
>
> Patriot's PTSC1000
> Ultra Technology's F21
> Harris RTX2000 (if you are doing a space job for NASA)

Many thanks

>
>There are probably more around and I think it is always worth looking at
>the architecture of a processor (the way ALU's and registers are used
>within the processor) when making an evaluation. I haven't looked at the
>structure of the ARM but I would expect many of the DSP processors to also
>be quite simple architectures also.
>
>Sorry, by the way, for the delay getting back on this one but it has been
>rather hectic the past few days.

Likewise.

--
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/
/\/\/ chris@xxxxxxxxxxxx www.phaedsys.org \/\/\
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