Re: [avr-llvm-devel] Flash data

[Anton S. <an...@so...>]

Hmm, if __flash acts in the same way as const, as in it's a qualifier.
 Then could you make it a super set of const?  In other words __flash
implies const?  Then you could say:

int __flash a;

int __flash * b;

int __flash * __flash c;

This would be an int in flash, a pointer in ram to an int in flash,
and a pointer in flash that points to an int in flash.  And all of the
constness would be guaranteed.

If __flash does not behave as a qualifier then I'm not sure how you
would achieve the third example above.

Thanks,
    Anton

p.s. Still lurking around on this list.  :)  I hope to get back to
hacking on avr-llvm at some point.

On Thu, Mar 15, 2012 at 1:01 PM, Borja Ferrer <bor...@gm...> wrote:
> Ok I've finished working on all this. Native english speakers check out
> these strings for a more formal way of saying the following:
>
> 1) Cannot write to flash memory. <-- emitted when trying to assign a value
> to a flash var
> 2) Flash variables are read only and should be declared with a const
> qualifier. <-- emitted when doing something like __flash int, we want
> __flash const int
> 3) The pointee type of a flash pointer should be declared with a const
> qualifier. <-- i cant think of a better way of saying it, this is emitted
> when doing __flash int* ptr, we want __flash const int *ptr.
>
> Again, if anybody can think of any other sanity checks, list them here.
> Once these strings are verified i'll commit my work.
>
> ------------------------------------------------------------------------------
> This SF email is sponsosred by:
> Try Windows Azure free for 90 days Click Here
> http://p.sf.net/sfu/sfd2d-msazure
> _______________________________________________
> avr-llvm-devel mailing list
> avr...@li...
> https://lists.sourceforge.net/lists/listinfo/avr-llvm-devel
>