Lpc2000

Hi Dean,


--- Dean greaves <dgreaves@...> wrote:

> Hi Michael,
> 
>             I wrote a small application this morning
> with just the divide
> routine in it.  When I stepped through the assembly,
> I noticed that most of
> the function is actually missing ???

This could happen is a typical case like this:

void APP_vMain (void)
{
      unsigned int a=0, b=1000, c=10;
 
       //a=test(b,c);
       a = b/c;
 
       CONSOL_Printf("a = %d, b = %d, c =
 %d\n\n",a,b,c);
}

In the above code, the (high optimization) compiler
would know that the values in \ufffdb\ufffd & \ufffdc\ufffd are fixed,
hence it would optimize it away & load the value 100
(result of 1000/10) directly to \ufffda\ufffd. Due to this you
wont see a call made to __udivsi3. Because of this I
purposefully added a subroutine to do the division.

>  It does n't
> look like what you have at
> all.  I'm afraid I'm a bit of a rookie at this, I
> would be grateful for any
> help 
> 
>  
> 
> Please find attached my ELF file
> 

No elf file attachment on this email.

Cheers,
-Mike.



		
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