How to use SPE on MPC8541

Andy Fleming afleming at
Thu Sep 29 01:34:37 EST 2005

On Sep 28, 2005, at 03:12, Fillod Stephane wrote:

> Bonjour Gérard,
> Gérard Guével wrote:
>> I don't especially want to see if the bit is set, I just want
>> to improve the board performance for a Linux application :-).
> Do you know where your CPU is spending much of its time?
> It looks like a job for OProfile. Support for e500 exists in 2.6.x
> thanks to the fine folks of Freescale. We appreciate their involvement
> in OSS community.

Yeah, oprofile would probably help here.

>> with the standard glibc (strcpy, strcmp, ...) on one part, and with
>> the freescale SPE library on the other part (vstrcpy, vstrcmp, ...).
> Will the SPE enhanced C library calls will be integrated in Glibc  
> one day?

I don't think the glibc people integrate processor-specific changes,  
so it's not likely.


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