On Apr 20, 2:43 am, jcomeau_ictx <john.com...@gmail.com> wrote:
> On Apr 19, 1:02 pm, be.g...@gmail.com wrote:
>
> > Hi All,
>
> > Not sure if this is the right forum. Pls. point me appropriately if
> > not.
>
> > My question:
>
> > Does anyone know if gcc generates dsp instructions when available for
> > ARM processors such as  ARM926EJ-S?
> > If so, what flags must one enable?
> > Even better, can anyone point to sample dsp code for ARM?
>
> > Thanks.
>
> If you use gcc -mcpu=arm926ej-s -o blah blah.c, it ought to generate
> DSP instructions where appropriate. You can always check, and include
> inline assembly where needed, or better yet, submit a patch. The gcc
> folks are pretty responsive to bug reports and patch submissions.

I posted similar question some time ago, now I use the following
command: gcc -mtune=arm926ejs .... If you see assambler .S code
generated it uses some of these instructions ....

Did you find any patch for gcc or some kind of "dsp libraries" that
provide efficient use of these instructions?

On Apr 19, 1:02 pm, be.g...@gmail.com wrote:
> Hi All,
>
> Not sure if this is the right forum. Pls. point me appropriately if
> not.
>
> My question:
>
> Does anyone know if gcc generates dsp instructions when available for
> ARM processors such as  ARM926EJ-S?
> If so, what flags must one enable?
> Even better, can anyone point to sample dsp code for ARM?
>
> Thanks.

If you use gcc -mcpu=arm926ej-s -o blah blah.c, it ought to generate
DSP instructions where appropriate. You can always check, and include
inline assembly where needed, or better yet, submit a patch. The gcc
folks are pretty responsive to bug reports and patch submissions.

Hi All,

Not sure if this is the right forum. Pls. point me appropriately if
not.

My question:

Does anyone know if gcc generates dsp instructions when available for
ARM processors such as  ARM926EJ-S?
If so, what flags must one enable?
Even better, can anyone point to sample dsp code for ARM?

Thanks.