Re: [Sdcc-user] PIC14 Testing

[Bert D. <dri...@pl...>]

On Tue, 1 Jun 2004, Leonard Garvey wrote:

> I'm doing a kind of testing for a 16f877 (and without trying to open
> the debate about if a c compiler for a PIC is worthwhile)..
>
> I still need to fully confirm for myself that alot of the basics are
> available (the PIC is pretty basic so most of it can be used with just
> the basics of C too)..
>
> If there are any aspects that I should pay particular attention to, or
> anything which might prove helpful (or otherwise) would be greatly
> appreciated.
>
> Its a bit difficult to assess the status of the PIC14 port.. (other
> than its not complete).

Issues I know about... Sorry, I've not come around to creating test sets
yet:

 - const array references leak two bytes of RAM per array
 - the compiler is too aggressive eliminating bcf status,5; for example,
referring to a TRIS register in a subroutine may leave status<5> set
 - The "%" operator is not implemented
 - Passing a const char pointer doesn't generate working code

The bcf status,5 issue is the only one that is not obvious from reading
the generated assembly.

Cheers,

				-- Bert

-- 
Bert Driehuis -- dri...@pl... -- +31-20-3116119
If the only tool you've got is an axe, every problem looks like fun!