Re: [avr-gcc-list] Compiler optimisation and volatile variables

[Rob Prowel]

gcc -O0

(capital oh) (zero) means optimization level zero.  
Try it...btw: you really should consider using
"volatile" for this purpose.

PS - as a safety issue I always use -O zero in code
I'll be embedding and then hand code any optimizations
I feel are necessary.


--- Willem Jacobus Marais <address@hidden>
wrote:

> Dear All
> 
> Is there a compiler option that prevents the
> compiler from removing
> variables when it optimises the code, rather
> declaring each variable as
> volatile?
> 
> I'm using avr-gcc version 3.4.5 with the
> optimisation option -Os
> 
> Thanks in advance
> Regards
> Willem Marais
> 
> 
> 
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> address@hidden
>
http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
> 


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