If I recall correctly,

   u<<order;

has no affect in C since the expression is not assigned to any variable nor
does it modify the variable
u.

Did you mean:

  u = (u << order);

Tal

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Leandro
> Sent: Sunday, July 28, 2002 8:37 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: CCS and Strange shift method, is it valid? (Solved
> Thanks!)
>
>
> Hello Greg and David
>
> Thanks a lot for your reply!.
>
> You are right!, they are unigned constant assigned to 'n'
>
> there is an float 'u' variable, that was why i didn't realize that u had
> nothing
> to do with the variable but with an explicit declaration.
>
> still i didn't know that 1u means 1 unsigned :)
>
> so i replace it for
>
> n=1;
> u<<order;
>
> and worked just fine!!
>
> Thanks a lot for your help!!!!!!!!!!
>
> see you
>
> Leandro
>
>
> At 21:01 26/07/02, you wrote:
> >The '1u' is an unsigned constant. No float involved.
> >Look at the code and I doubt there is any variable u
> >declared.
> >
> > > -----Original Message-----
> > > From: pic microcontroller discussion list
> > > [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Leandro
> > > Sent: Friday, July 26, 2002 1:56 PM
> > > To: PICLIST@MITVMA.MIT.EDU
> > > Subject: [PIC]: CCS and Strange shift method, is it valid?
> > >
> > >
> > > Hello  all
> > >
> > > I'm trying to do a 16 point FFT on a 16C73B and, porting a C code
> > > (optimized
> > > for micros, that was what the code comment says ;)) i found
> an extrange
> > > instruction that doesn't work in CCS compiler.
> > > The line is as follows:
> > >
> > >   n=1u<<order;
> > >
> > >
> >
> >--
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>

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