AVR-Chat

On Jun 7, 2008, at 5:13 PM, Cat Hotmail wrote:

> I'm having this weird problem whereby I am able to debug, and to step
> through the program, but it just ignores/skips some of the lines.


As you have found when -Os is changed to -O0 all your "lines" appear  
as expected in the debugger. You didn't say whether "skipped" lines  
were executed or not, I suspect they were. Just optimized to where the  
debugger couldn't single out and associate assembly code with source  
code.

To some extent you could use more volatile modifiers to create  
distinct source code line demarcations that will single step debug.

--
David Kelly N4HHE, dkelly@HiWAAY.net
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Whom computers would destroy, they must first drive mad.