[ECOS] Cortex M3 architecture

[simon.kallweit@intefo.ch]

Andrew Lunn wrote:
>> I wonder if the other Cortex variants (A8, A9, R4, M1) should be  
>> considered for porting from the beginning. My focus is clearly on the  
>> M3, but if anyone is willing to work on the other variants this should  
>> be considered now.
>>     
>
> Have you seen any documents which compares/contrasts the different
> Cortex variants. Before answering your question it is necessary to
> know how similar/different the different variants are.
>   

No I haven't really. All I know is that the variants all have very 
different application profiles. A series being mostly for complex OS and 
applications, R series for more complex embedded applications and the M 
series for deeply embedded applications. A & R also support normal Thumb 
and ARM instructions. Perhaps someone else can give some insight?

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